diff options
| author | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 1997-08-15 05:15:07 +0000 |
|---|---|---|
| committer | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 1997-08-15 05:15:07 +0000 |
| commit | 16673e78bf537f5893fa913ff7c063926ba0d4aa (patch) | |
| tree | 981890e4a5ba0eb07721e6ed6b143929a95cfd42 /gcc/ChangeLog.2 | |
| parent | 7bbab92e23edf01cf740046a335c0f259715a017 (diff) | |
| download | gcc-16673e78bf537f5893fa913ff7c063926ba0d4aa.tar.gz | |
Remove old (pre gcc-2.7.2) ChangeLog files.
Remove pre-built into files.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@14799 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/ChangeLog.2')
| -rw-r--r-- | gcc/ChangeLog.2 | 7229 |
1 files changed, 0 insertions, 7229 deletions
diff --git a/gcc/ChangeLog.2 b/gcc/ChangeLog.2 deleted file mode 100644 index a5e092c26a7..00000000000 --- a/gcc/ChangeLog.2 +++ /dev/null @@ -1,7229 +0,0 @@ -Thu Jan 31 00:33:33 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * loop.c (scan_loop): Check each libcall for regs it uses - but does not mention in the equivalent value. - To move the libcall, we must have at most one such reg - and it must be moved as well. - (libcall_other_reg): New subroutine. - * rtlanal.c (record_excess_regs): New function. - - * tree.c (gcc_obstack_init): New function. - (init_obstacks, save_tree_context): Use that. - (OBSTACK_CHUNK_SIZE): New parameter. - * xm-next.h: New file. - * configure (m68k/next): Use that file. - - * flags.h (flag_no_common): Declare new flag to treat external defs - as ANSI specifies (i.e. not as common). - * toplev.c (flag_no_common, f_options): Support -fno-common. - * varasm.c (assemble_variable): Don't output a common if - flag_no_common is set. Treat as if initialized to 0. - - * gcc.c (default_compilers): Define __ASSEMBLER__ for .S file. - - * tm-aix386.h (ASM_OUTPUT_LOCAL): Ok to use bss, since no shared libs. - (LINK_SPEC): Pass through all -K and -T options. - * xm-aix386.h (TRUE, FALSE): Undef if already def, to avoid warning. - - * tm-m68k.h (TARGET_68040, TARGET_68040_ONLY): New machine flags. - (TARGET_SWITCHES): Alternatives to set them. - * tm-next.h (TARGET_DEFAULT): Changed to 0407 for 68040. - - * out-m68k.h (standard_68881_constant_p): Always return 0 - for TARGET_68040 since fmovecr is no longer implemented in hardware. - - * m68k.md (ftruncdf2, ftruncsf2): Don't emit fintrz for - TARGET_68040, since it is no longer implemented in hardware. - (muldf3): Don't use fscale on 68040, since not implemented in hardware. - - * toplev.c (optimize): Now stores specified optimization level. - (main): Keep the largest optimization level specified. - Handle any integer. - - * c-decl.c (pushdecl): Don't make an extern global for -traditional - if it uses any local types. - - * tm-sun386i.h (PCC_BITFFIELD_TYPE_MATTERS): Use 1 as value. - -Wed Jan 30 12:41:15 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * fixincludes (sys/systypes.h): Edit this to handle _SIZE_T, etc. - - * function.c (put_var_into_stack): Allocate var ref chain link - while in the proper function's obstack. - - * fold-const.c (const_binop): Don't crash for real/0 if have infinity. - - * flow.c (mark_set_1): Don't make log link for hard reg in asm insn. - -Wed Jan 30 07:45:33 1991 Tom Wood (wood at dg-rtp.dg.com) - - * sched.c (schedule_block): Indicate what insns constitute each - basic block. - -Tue Jan 29 12:35:42 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * Makefile.in (gnulib1.*, gnulib2.*): Declare them phony targets. - - * print-tree.c (print_node): Print message if TREE_PERMANENT is wrong. - * tree.c (object_permanent_p): New function. - - * print-tree.c (print_node): Remove DECL_LANG_FLAG_10. - -Tue Jan 29 10:07:48 1991 Tom Wood (wood at dg-rtp.dg.com) - - * m88k.md (minus/xor/and, neg/ne/compare/and): Delete these. This - should be done by combine. - (compare operator): Eliminate except when a SET_SRC. - * tm-m88k.h (OPTIMIZATION_OPTIONS): -fomit-frame-pointer is a - default optimization. - -Mon Jan 28 12:52:11 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * tree.h (DECL_VIRTUAL_P): Renamed from TREE_VIRTUAL. - (struct tree_common): Eliminate virtual_flag. - (struct tree_decl): Add virtual_flag. - - * Makefile.in (enquire.o): Pass -DNO_STDDEF. - - * m68k.md (tablejump): Now have a define_expand that does - different things depending on CASE_VECTOR_PC_RELATIVE, - and a separate define_insn for each case. - - * function.h (outer_function_chain): Declare the variable. - - * tree.c (debug_obstack): Fix typos. - * tree.h (struct tree_common): Fix typo. - - * Makefile.in (GNULIB1_TARGET, GNULIB2_TARGET): Variables deleted. - (gnulib): Depend on gnulib1.target and gnulib2.target explicitly. - - * dbxout.c (dbxout_type): Use DECL_VIRTUAL_P, not TREE_VIRTUAL. - - * cplus-tree.h (TREE_PRIVATE, TREE_PROTECTED): #if 0. - - * cexp.y (keywords): Cast names for parens to U_CHAR *. - - * gcc.c (process_command): Fix typo setting switches[n_switches].arg. - - * loop.c (loop_reg_used_before_p): Check insns before INSN, not after. - - * objc-actions.c (objc_finish): Renamed from lang_finish. - * objc-parse.y (program): Call objc_finish at the end. - - * Changes from Matthew Self (mself@next.com): - - * objc-parse.y: Since objc-parse.y was so out of date with - respect to c-parse.y, I started over with c-parse.y and - reintegrated the Objective-C modifications. Now that - Objective-C is working I hope that objc-parse.y will be kept - more up to date.... I did not re-integrate the lexer since I - don't have gperf working. I simply cut and pasted what - Stallman had in objc-parse.y. Someone with access to gperf - should re-generate this stuff. - - * objc-actions.c (comp_method_with_proto, - comp_proto_with_proto): Stallman's change to use the - functions end_temporary_allocation and - resume_temporary_allocation is incorrect, since it always - leaves allocation temporary, whether it was before or not. - - Perhaps the push and pop functions would do the trick.... - - * objc-actions.c (get_arg_type_list): Use new function - groktypename_in_parm_context. - - * objc-actions.c (_OBJC_SELECTOR_REFERENCES_decl, - _OBJC_SELECTOR_REFERENCES_id): Removed. - - * objc-actions.c (synth_module_prologue): Eliminated code to - forward declare the selector references array. - - * objc-actions.c (init_objc_symtab): Eliminated code to - initialize "refs" field in objc_symtab structure (which is - now vestigial). - - * objc-actions.c (build_selector_translation_table): Rewrote. - - * objc-actions.c (build_selector_reference): New routine. - - * objc-actions.c (build_message_expr, build_selector_expr): - Use new routine. - - * config/tm-next.h (GO_IF_INDEXABLE_BASE): Don't use pc - relative addressing for LABEL_REF's. Since branch tables are - in the const section, we treat LABEL_REF's like SYMBOL_REF's - here. Otherwise invalid addresses were being generated. - - * config/tm-next.h (CASE_VECTOR_PC_RELATIVE, CASE_VECTOR_MODE): - Use absolute branch tables rather than relative ones. - - * config/tm-next.h (ASM_OUTPUT_MAIN_SOURCE_FILE_END): Output - an N_SO symbol with no name to mark the end of the module. - This is needed to support scattered loading on the NeXT. - - * config/out-next.c (handle_pragma): Call to xrealloc had wrong args. - - * configure: Entry for NeXT must set out_file to out-next.c. - - * config/out-next.c: Typo: "flags" -> "flags.h" - - * config/tm-next.h (LIB_SPEC): Brought up-to-date. There - are probably more changes needed here. - - * c-decl.c (pushdecl_top_level): New function. This was - copied from an older version of g++. - - * c-decl.c (init_decl_processing): Make alloca first arg sizetype. - - * c-decl.c (groktypename_in_parm_context): New function. - -Mon Jan 28 07:07:01 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * loop.c (loop_reg_used_before_p): Don't use INSN_LUID since INSN - might have been made by loop.c for an outer loop. - - * loop.c (move_movables, strength_reduce): Replace register references - in REG_NOTES as well as PATTERN. - - * loop.c (strength_reduce): Call maybe_eliminate_biv twice, not - three times. - (maybe_eliminate_biv): Don't abort if elimination fails even though - we thought it wouldn't. This can happen if certain insn patterns - aren't valid. - (maybe_eliminate_biv_1): Ensure that we do not change the insn at - all if all the required changes can't be done. - -Sun Jan 27 21:26:29 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * Makefile.in: Rename config-dir back to config. - -Sat Jan 26 17:48:22 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * objc-parse.y (program): Call objc_finish. - * objc-actions.c (objc_finish): Renamed from lang_finish. - - * objc-actions.c, objc-parse.y: New version from NeXT. - -Sat Jan 26 17:37:48 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * expr.c (expand_expr, case COND_EXPR): Disable special-case of - A ? B : C when B and C are simple. This is now done better by jump. - -Sat Jan 26 13:16:58 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * tree.h (TREE_PRIVATE, TREE_PROTECTED, TREE_VIRTUAL): New macros. - (struct tree_common): New flag fields. - * dbxout.c (dbxout_type): Get rid of conditional; can always use these. - - * cccp.c (lookup_import): Do return -2 if file found. - (main): Handle `.m' suffix like `.S'. - - * configure (m68k/next): Use out-next.c. - - * WORD_SWITCH_TAKES_ARG and SWITCH_TAKES_ARG now give # of args. - * gcc.c (struct switchstr): New field `args' replaces `part2'. - (process_command): Record all the args a switch has. - (give_switch): Pass all the strings in `args'. - - * tree.h (struct tree_common): Normally make `code' an enum tree_code. - - * m68k.md (tablejump): New pattern. - (casesi, etc.): Deleted. - - * tree.c (debug_obstack): New function. - - * toplev.c (compile_file): Call dbxout_finish near the end. - * dbxout.c (dbxout_finish): New function. - - * print-tree.c (print_node): Always print ERROR_MARK node briefly. - - * objc-actions.h (METHOD_ENCODING, CLASS_CATEGORY_LIST): New macros. - - * gcc.c (execute): Make fatal signal message clearer. - (default_compilers): For .m file, define __OBJC__, - and pass -lang-objc and -gen-decls to cc1. - - * dwarfout.c: Include output.h. - (current_function_decl, asm_out_file): Explicit extern decls deleted. - (abort, fatal): Explicit extern decls deleted. - (NO_RETURN): Definition deleted. - (named_labels): Don't declare it. - (output_symbol): Don't use it. - (MAXPATHLEN): Don't define this. Don't include sys/param.h. - (output_source_file_die): Avoid limit on file name size. - (output_symbols_for_stmt): Deleted. - (output_symbols_for_block): Adapt to using BLOCK, not LET_STMT. - - * configure: Renamed from `config'. - * config: Directory renamed back from config-dir. - -Sat Jan 26 1990 Ron Guilmette (rfg at ncd.com) - - * README.DWARF: updated to reflect changes to dwarfout.c, the - inclusion of dwarf.h (and its changes) and the fact that the - DWARF support is no longer directly tied to the DG versions of - GCC. - - * dwarfout.c: included a patch (provided by Ray Essick) to allow - dwarfout.c to properly get a value for MAXPATHLEN even on (old) - System V.3 systems. - - * dwarfout.c: added support for long long types (as suggested by - Ray Essick). - - * dwarfout.c: added support for the AT_comp_dir attribute. Also, - as part of this change, the name of the compilation directory is - no longer placed into in the .sources section. - - * dwarfout.c: added support for the AT_addr_ranges attribute. - - * dwarfout.c: added support for the AT_prototyped attribute. - - * dwarfout.c: added support for the AT_src_info attribute. Also, - as part of this change, there is no longer a "special" entry - at the start of the .srcinfo section for each compilation unit, - and the contents of the "special" final entry in the .srcinfo - section have changed (to { -1, -1 }). - - * dwarfout.c: modified to allow additional GNU DWARF extensions - to be generated whenever the corresponding extended attribute - codes are defined (presumably within a modified dwarf.h file). - - * dwarfout.c: use the section names .srcinfo and .sources rather - than .finfo and .files. The additional specificity is warranted - because the DWARF information may someday include information - about object files as well as source files. - - * dwarfout.c: fixed a bug where a type attribute was being generated - for functions and function types even when the return type was - void. "Standard" dwarf says that if the return type for a function - or function type is void then no type attribute should be generated - for the corresponding DIE. - -Sat Jan 26 04:22:08 1991 Michael Tiemann (tiemann at cygnus.com) - - * cplus-lex.c (interface_strcmp): Handle String.String.Map.cc and - friends. - - * cplus-typeck.c (build_unary_op): Merge change to generate better - code from simple cast expression. - -Fri Jan 25 10:06:28 1991 Michael Tiemann (tiemann at cygnus.com) - - * cplus-decl.c (pushtag): Don't call `pushdecl' if the type's name - is anonymous, lest we recurse ad infinitum. - -Thu Jan 24 23:56:55 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * optabs.c (expand_binop, expand_unop): Word at a time only for ints. - -Thu Jan 24 09:40:37 1991 Tom Wood (wood at dg-rtp.dg.com) - - * sdbout.c (sdbout_symbol): Apply changes in dbxout.c to deal with - SUBREG. Don't emit a symbolic definition for variables that can't - be represented. - -Thu Jan 24 21:18:15 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * config: Conditional for setting $os was backward. - Also mention name of make-var file if one exists. - - * out-i386.c: Delete a large piece of accidental insertion. - - * dwarfout.c: Don't include c-tree.h or cplus-tree.h. - (INT_TYPE_SIZE, etc.): Define them if not overridden. - (fundamental_type_code): Distinguish types by TYPE_PRECISION. - But also check for the built-in C type names. - -Thu Jan 24 15:23:17 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * gcc.c (default_compilers): Pass all args starting with "O" to - cc1 so that -O2 is passed along. - -Thu Jan 24 13:10:27 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * stmt.c (expand_expr_stmt): Don't warn for any casts to void. - - * config: Fix typos setting shell vars. - Rename config to config-dir. - Insert missing \ in case for delta. - -Wed Jan 23 16:31:27 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * emit-rtl.c (emit_jump_insn_{before,after}): Allow PATTERN to be - a SEQUENCE. - - * loop.c (check_dbra_loop): Use emit_jump_insn_before when writing - out compare and jump sequence, not emit_insn_before, to ensure that - if we only write one insn that it is a JUMP_INSN. - - * toplev.c (flag_rerun_cse_after_loop): New: -frerun-cse-after-loop. - (rest_of_compilation): Rerun cse after loop if desired. - (main): Add support for -O2. - Prescan args for -O and -O2 to set default values for many -f options. - Add call to new macro OPTIMIZATION_OPTIONS. - Save status of -version until all args have been processed; then - write out the info. - (print_single_switch): New function. - (print_switch_values): Renamed from print_target_switch_defaults. - Now prints out currently enabled -f, -m, and -W switches. Calls - print_single_switch to write out switch and handle long lines. - - * rtl.def (SUBREG): Change rtx class from 'o' to 'x'. - - * cse.c (find_comparison_args): Ignore hash table entry if not valid. - -Wed Jan 23 00:12:24 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * config: File renamed from config.gcc. - Allow abbreviations for +-options. - Allow config HOST TARGET. - Support +gas and +nfp as separate options. - Rename all the machine alternatives to general scheme: - cpu/company-system. Allow abbreviations for cpu/company pairs. - * config-dir: Dir renamed from config. - - * Makefile.in (install-dir): Create bindir here. - - * cccp.c (main): Delete duplicat p++ left in last change. - - * Makefile.in (GNULIB1, GNULIB1_TARGET): Renamed from GNULIB*. - (gnulib1.portable, gnulib1.target): Renamed from gnulib.*. - They now make a file named gnulib1, from gnulib1.c. - (LIB1FUNCS, LIB1FUNCS_EXTRA): Renamed from LIBFUNCS*. - (for-bootstrap, rest.encap): Depend on gnulib, not GNULIB2_TARGET. - (stamp-gnulib2): This file is no longer used. - (gnulib2.portable): Old stamp-gnulib2 rule renamed to this. - Now create a file named gnulib2, from gnulib2.c alone. - (gnulib): New target, combines gnulib1 and gnulib2 into gnulib. - (mostlyclean): Delete additional temporary files. - No need to avoid deleting stamp-gnulib2. - (clean): Delete gnulib1 and gnulib2, but not stamp-gnulib2. - (realclean): No need to delete gnulib here. - (install-gnulib): Changed dependencies. - * gnulib1.c: File gnulib.c renamed. - - * Makefile.in (install-dir): Create bindir here. - - * cccp.c (main): Delete duplicat p++ left in last change. - -Sun Jan 20 14:00:16 1991 Michael Tiemann (tiemann at cygnus.com) - - * cplus-class.c (finish_struct): Conditionalize EMPTY_FIELD_BOUNDARY - on whether or not it is defined. Similarly for PCC_BIT_FIELD_MATTERS. - -Wed Jan 16 18:56:30 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * cse.c (fold_rtx): When folding dispatch table, stay inside bounds. - -Wed Jan 16 08:11:48 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * reload.c (find_reloads_toplev): Fix typo in recent change. - - * reload1.c (eliminate_regs): If we have a non-paradoxical - (subreg (pseudo)) and the pseudo has an equivalent memory - location, replace the SUBREG because find_reloads may do it. - -Tue Jan 15 01:41:28 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * loop.c (scan_loop): Condition for movability was wrong. - A reg that isn't necessarily set may be unsafe - even if used only inside the loop. - However, a reg used only in the same basic block after the set is safe. - So is a reg that isn't a user-level variable. - - * loop.c (loop_optimize): Reverse order of scanning loops. - - * loop.c (scan_loop): After skipping the insns of a libcall sequence, - ignore notes when searching back to find the last insn of the seq. - - * cccp.c (main): Use envvar GCC_EXEC_PATH to specify translation - of prefixe in default include dirs. - - * cccp.c (main): Do path_includes after explicit options. - - * combine.c (try_distrib): Don't push + thru negative count shifts. - -Mon Jan 14 09:40:28 1991 Ken Raeburn (raeburn at watch.com) - - * cplus-lex.c (yylex): Even in `extern "C"', the keywords are the - same. - - * cplus-lex.c (input_from_saved_text): New function. Set string - source for FILE pointer. - (yylex, do_pending_inlines): Call it. - - * cplus-parse.y (stmts, stmt): Type is now `tree'. Some actions - fixed to return it. - - * cplus-lex.c (reinit_parse_for_block): New function, with most of - the guts of reinit_parse_for_method. Magic argument IS_TEMPLATE - chooses a set of error messages. - (reinit_parse_for_method): Call it. - cplus-template.c (reinit_parse_for_template): New function, also - calls reinit_parse_for_block. - -Mon Jan 14 07:20:36 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * loop.c (skip_consec_insns, move_movables, strength_reduce): Don't - call find_reg_note on a NOTE. - -Sun Jan 13 15:45:23 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * cccp.c: Separate namespace for assertions. Don't expand macros - inside assertions in #if. Allow arbitrary token sequences. - (rescan): Special handling after `#' if assertions_flag. - (expand_to_temp_buffer): New arg sets assertions_flag. Callers changed. - (eval_if_expression): Pass 1 for that arg. - (skip_paren_group): New function. - (assertion_hashtab, ASSERTION_HASHSIZE, ASSERTION_HASHNODE): New. - (assertion_install, assertion_lookup, delete_assertion): New functions. - (T_ASSERTION): Deleted. - (tokenlist_list): Renamed from arglist_list. - (read_token_list): Renamed from read_keyword_list. Much changed. - Copy the strings into the heap. - (free_token_list): Renamed from free_keyword_list. Free the strings. - (do_assert, do_unassert): Considerably changed. - (check_assertion): Somewhat changed. - (check_macro_name): Extra arg contributes to error message. - * cexp.y (yylex): Parse everything as a name if keyword_parsing. - (rule for assertions): Set, then clear, keyword_parsing. - (keywords): Allow empty sequence. Allow nested parens. - -Sat Jan 12 12:18:00 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * c-typeck.c (build_unary_op): Make better code for simple casts. - - * reload.c (find_reloads): Computing reload_when_needed, don't neglect - operands that don't have output reloads. - - * cse.c (refers_to_mem_p): At check_addr, handle PLUS inside CONST. - -Sat Jan 12 06:30:56 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * reorg.c (steal_delay_list_from_*): Add missing argument to calls to - insn_sets_resource_p. - (fill_eager_delay_slots, relax_delay_slots): Add missing argument - to calls to mostly_true_jump. - (relax_delay_slots): Correctly handle case where we can't invert jump. - - * reload.c (find_reloads_toplev): If we have a SUBREG of a - pseudo that resides in memory and the address is not offsettable, - substitute for the pseudo now so we can generate a reload for the - address. - -Fri Jan 11 14:39:09 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * tm-next.h (LIB_SPEC, STARTFILE_SPEC): Don't support -p. - -Thu Jan 10 12:26:49 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * tm-sun2.h (CC1_SPEC): Define to ignore -sun2 and -target. - (WORD_SWITCH_TAKES_ARG): Define to recognize -target. - (LIB_SPEC): Define; handle -a. - * tm-sun2os4.h: New file. - * tm-m68k.h (TARGET_SWITCHES): Handle -msky and -mnosky. - (TARGET_SKY): New macro. - - * tm-next.h (LIB_SPEC): Use -lsys_s, not -lc. - - * c-parse.y (yylex): Fix typo. - - * genoutput.c (output_prologue): Make insn-output.c use insn-codes.h. - * Makefile.in (insn-output.o): Depend on insn-codes.h. - - * Makefile.in (install-headers): Save $(libsubdir) before cd. - - * Makefile.in (gnulib): Depend on config.status. - - * gnulib2.c (__umulsidi3): Use #else around inline function. - Use __-style names for all machines. - -Wed Jan 9 17:06:18 1991 Michael Tiemann (tiemann at cygnus.com) - - * out-sparc.c (various places): Change \; to \n\t in printf - strings. - - * sparc.md: Change PIC initialization pattern to recognize pattern - that doesn't involve a clobber. - * out-sparc.c: Rest of change is here, where PIC initialization is - emitted. - - * cse.c (simplify_unary_operation, simplify_binary_operation): - Correctly adjust VAL for bits outside MODE. - -Wed Jan 9 15:45:26 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * flow.c (libcall_dead_p): Handle a CALL in a PARALLEL. - -Tue Jan 8 13:35:50 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * expmed.c (emit_store_flag): Correct UNSIGNEDP value passed to - convert_to_mode and expand_unop. - -Mon Jan 7 11:56:31 1991 Michael Tiemann (tiemann at cygnus.com) - - * gplus.gperf: New keywords for templates and other extensions. - - * cplus-lex.c: Incorprate new gperf code. - - * cplus-class.c (resolve_scope_to_name): New function. - (build_scoped_method_call): Call `resolve_scope_to_name' instead of - handling by itself. - * cplus-decl.c (pushdecl_class_level): Give forward declaration. - (lookup_nested_type): New function. - (pushtag,lookup_tag,xref_tag): Handle nested classes. - (finish_function): Add comment about obscure argument passing - convention for static method calls (at the call site). Also, don't - call operator delete with NULL pointer. Call it with - `current_class_decl' instead. - (globalize_nested_type): New function. Used when we learn that a - type which initially appeared to be nested should be defined in the - global scope instead. - (grokdeclarator): Call `globalize_nested_type' when grokking an - as-yet undefined class type. - * cplus-dem.c: Updated to handle qualified (i.e. nested) types. - This means handling the new letter `Q' in mangled names. - * cplus-init.c (build_member_call): Handle nested classes using - `resolve_scope_to_name' instead of handling itself. - * cplus-lex.c (typename_scope_in_progress): New static variable to - allow the lexer to figure out what are nested class typenames, - scoped member references, etc., without getting the parser too - involved. - (yylex): Recognize SCOPED_TYPENAME and TYPENAME_SCOPE tokens. - Also, recognize '<' and '>' separately from ARITHCOMPARE so we can - implement templates. - No longer recognizes (X::*) or (X::&) as single tokens. - * cplus-method.c (build_overload_nested_name): New function to build - internal names for nested typenames. - * cplus-parse.y: Handle parameterized type syntax (more or less). - (dummy_decl): Gone! - Nested types are now handled. - * cplus-tree.h (DECL_UNDEFINED_FRIENDS): Moved out of DECL_CONTEXT - slot of TYPE_DECLs. DECL_CONTEXT of typename is now the enclosing - type for nested types. - (DECL_NESTED_TYPENAME): An identifier pointer that makes the name of - the type unique for the compilation. - (IDENTIFIER_*): When initializing, call `perm_calloc', not - permalloc, since non-zero values actually mean something, - and we don't guarantee to initialize everything in one go. - * tree.c (perm_calloc): New function. - * cplus-typeck.c (default_conversion): Don't defaultly convert a - naked METHOD_REF such that it becomes a virtual function table - index. Only let this happen if user requests it with `&'. - - * Makefile.in: Handle new source file cplus-template.c. - -Mon Jan 7 15:03:53 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * c-typeck.c (process_init_constructor): Error if values - provided for an array of empty elements. - - * out-i386.c (fp_top_dead_p1): Follow jump only if optimizing. - (fp_call_internal): Discard result if unused. Use fp_top_dead_p1. - - * cse.c (cse_insn): In special case for (set REG0 REG1), - change any REG_EQUIV notes to REG_EQUAL. - - * tm-sun386i.h (PCC_BITFIELD_TYPE_MATTERS): Define it. - - * tm-att386.h (ASM_OUTPUT_LOCAL): Change back to data section. - - * genrecog.c (write_tree_1): Typo in printf string. - - * flow.c (libcall_dead_p): New arguments NOTE and INSN. - Now test that the hard return reg in the call is dead. - Callers changed. - -Mon Jan 7 12:27:07 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * recog.c (cancel_changes): Cancel changes in opposite order we made - them. - - * integrate.c (subst_constants): Only commute operands if op0 is const. - - * rtl.def (INLINE_HEADER): Add new integer field. - * rtl.h (POPS_ARGS): New macro for place to save - current_function_pops_args. - (FUNCTION_FLAG_POPS_ARGS): Deleted; no longer a single bit. - * emit-rtl.c (gen_inline_header_rtx): Add new arg for "pops args". - * integrate.c (initialize_for_inline, output_inline_function): - Correctly save and restore current_function_pops_args. - -Sun Jan 6 14:10:44 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * rtl.h (ASM_OPERANDS_INPUT_LENGTH): New macro. - * reload1.c (eliminate_regs): Use ASM_OPERANDS_... macros. - * recog.c (asm_noperands, decode_asm_operands): Likewise. - - * rtl.def (IF_THEN_ELSE): Set class to '3'. - - * cse.c (simplify_{unary,binary,ternary}_operation): New functions, - from fold_rtx. - (fold_rtx): Call these function to do the bulk of the work. - Use GET_RTX_CLASS to find commutative and comparison operations. - Swap folded_arg[01] when commuting operands. - * rtl.h: Define new functions. - * integrate.c (try_constants): Replace constant folding code with - calls to new functions above. - In commutative operations, put constants last. - - * genemit.c (struct clobber_pat): New data structure. - (gen_insn): If pattern ends with a group of CLOBBERs of hard - registers, store this information in a struct clobber_pat. - (output_add_clobbers): New function. - (main): Call it to write code to add CLOBBERs. - * genrecog.c (struct decision): Add new field num_clobbers_to_add. - (make_insn_sequence): If pattern ends with a group of CLOBBERs, - set up to recognize it without the CLOBBERs but to indicate the - number of CLOBBERs omitted. - (add_to_sequence): Initialize num_clobbers_to_add. - Remove unnecessary conditionalization on STORE_FLAG_VALUE. - (break_out_subroutines, write_subroutine, write_tree): Remove - RETURN_PREFIX parameter; TYPE is sufficient. - (write_subroutine): Add extra parameter for recog_* functions. - (write_tree_1): Pass TYPE instead of string for return. - Write out code to return number of CLOBBERs needed. - (write_tree): Add new parameter to recog_*. - (main): Add new parameter to recog. - Don't pass return string to break_out_subroutines and write_tree. - * recog.c (recog_memoized): Pass extra (0) parameter to recog. - * combine.c (recog_for_combine): New function. - (try_combine, simplify_and_cc0, try_distrib): Use it instead of recog. - (reg_dead_at_p, reg_dead_at_p_1): New functions. - - * flow.c (mark_set_1): Count in reg_n_sets when a part of a register - is modified. - Update SIGNIFICANT correctly when subreg_p and multiple hard regs. - Compute reg_n_sets for hard registers. - -Sun Jan 6 13:41:49 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * function.c (locate_and_pad_parm): Do REG_PARM_STACK_SPACE just once. - - * Changes by wilson@cygnus.com. - * calls.c (expand_call): Test value of REG_PARM_STACK_SPACE instead - of assuming that it will always be greater than zero. - * function.c (assign_parms): Same as above. Also, correct - calculation of STACK_BYTES. - - * reload1.c (reload_reg_free_p): Old input reload blocks input_addr. - -Sat Jan 5 18:32:15 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * Makefile.in (mostlyclean): New name for old `clean'. - (clean): Deletes gnulib also. - (cleanconfig): Need not delete gnulib here. - - * reload.c (push_reload): Don't use dying reg unless operand fits. - - * c-parse.y (yylex): Hex and octal constants now traditionally signed. - -Sat Jan 5 18:03:50 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * regclass.c (regclass): reg_n_sets is one per set. It does not - take into account loop_depth. So don't adjust by loop_depth here. - -Fri Jan 4 13:18:07 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * function.c (put_var_into_stack): Don't mung virtual reg. - (fix_lexical_addr): Accept the virtual arg pointer. - * function.h (struct var_refs_queue): New structure. - (struct function): Use that for the pending var refs queue. - - * print-tree.c (print_node): Nicer format for rtl of decls. - - * c-decl.c (push_c_function_context, pop_c_function_context): - No need to deal with current_function_decl. - - * c-parse.y (nested_function): Delete spurious nonterminal. - -Fri Jan 4 12:13:14 1991 Michael Tiemann (tiemann at cygnus.com) - - * cplus-class.c (modify_vtable_entries): In case we are modifying - the main vtable, start with the vtable that comes from the immediate - baseclass, not the most base class. This is needed because later - fixups (for non-first and virtual baseclasses) do not fix up this - case. - -Fri Jan 4 06:55:00 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * optabs.c (expand_binop): Fix typo in testing for SImode operation. - Generalize to apply in more cases by calling emit_store_flag rather - than doing the gen_sltu explicitly. - - * expmed.c (store_bit_field, extract_bit_field): When insv/extv - don't allow MEM and we need to load the field into a register, don't - use the mode of OP0 if it is wider than the mode to be used for - insv/extv operating on a register. - - * expmed.c (emit_stor_flag): Try to convert some comparisons with - 1 and -1 to comparisons with zero. - Explicitly test sign bit of STORE_FLAG_VALUE rather than testing it - for being less than zero. - - * cse.c (find_comparison_args): Don't compute STORE_FLAG_VALUE < 0; - instead, test the relevant sign bit. - Use GET_RTX_CLASS instead of comparison_code_p. - * loop.c (get_condition): Likewise. - - * recog.c (validate_change): Eliminate duplicate code by always - saving the change. If in_group == 0, call apply_change_group. - (apply_change_group): If recog_memoized fails, see if we have a - CLOBBER at the end. Use validate_change to replace the pattern - with one without the CLOBBER if so; later we will verify that change. - - * tree.c (stabilize_reference_1): Now static; also, define as forward - reference at start of file. - - * rtl.def: Add new field in DEF_RTL_EXPR macro to give the "class" - of the rtx operation. - * rtl.h: DEF_RTL_EXPR has one additional arg. - (rtx_class, GET_RTX_CLASS): New var and macro. - * rtl.c: DEF_RTL_EXPR has one additional arg. - (rtx_class): Initialize table. - - * reload.c (push_reload): If an input operand contains a dead - register used nowhere else in the insn, try to use it as a reload reg. - * reload1.c (reload_as_needed): If cancelling optional reload, - clear reload_reg_rtx. - (choose_reload_regs): If we can find reload value lying around, - use that register unless choice made by find_reloads would also save - an insn (the new choice added above won't). - - * genoutput.c: Update comments on things written. Change order to - agree with the order written. - (output_epilogue): Remove extraneous tests. - -Thu Jan 3 13:32:54 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * rtl.c (read_rtx): Cast NULL vector. - - * By Jim Wilson. - * tree.c (stabilize_reference): Modified to call stabilize_reference_1 - instead of save_expr. - (stabilize_reference_1): New function. For arithmetic operator trees, - recurse on the subtrees. Otherwise, put a SAVE_EXPR around the - tree if it has side-effects. - -Thu Jan 3 12:37:56 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * reload1.c (choose_reload_regs): Only set reload_when_needed to - RELOAD_FOR_OUTPUT or RELOAD_FOR_INPUT when it used to be RELOAD_OTHER. - -Wed Jan 2 18:28:23 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * emit-rtl.c (init_emit_once): Fix typo setting constm1_rtx. - -Wed Jan 2 07:53:04 1991 Michael Tiemann (tiemann at cygnus.com) - - * sparc.md (fix_truncdfsi2 recognizer): xoperands must have 3 - elements because `output_fp_move_double' can write to operands[2]. - -Wed Jan 2 17:16:20 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * calls.c (emit_call_1): If we have call_pop, use it if we have - no stack arguments. - - * out-vax.c (relational_op): Deleted, redundant. - * vax.md (branch): Use comparison_operator (in recog.c) instead of - relational_op. - * tm-vax.h (PRINT_OPERAND_PUNCT_VALID_P): "C" is not punctuation. - - * reload1.c (reload_as_needed, forget_old_reloads_1): Don't clear - reg_has_output_reload and reg_is_output_reload for each insn, just - ones that need reload. Instead, interpret each entry as zero if - n_reloads == 0. - -Wed Jan 2 15:52:13 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * optabs.c (expand_binop): Fix typos. - - * toplev.c (rest_of_compilation): Clear cse_not_expected after loop. - * rtl.h (cse_not_expected): Declare here. - * expr.h: Not here. - -Tue Jan 1 21:55:11 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * emit-rtl.c (constm1_rtx): New standard constant. - (gen_rtx): Use it when appropriate. - (init_emit_once): Initialize it. - - * out-vax.c (split_quadword_operands): New function. - (relational_op): Likewise. - * vax.md (extendsidi2, adddi3, subdi3): New patterns. - (movdi): Use clrq when appropriate. - (movaq recognizer): New pattern. - - * recog.h (OUT_FCN): New macro. - * genoutput.c: Include recog.h in output file. No - longer define "const", since that happens in recog.h. - - * tm-vax.h (PRINT_OPERAND): Add 'C' to print a reversed condition. - * out-vax.c (rev_cond_name): Return its name. - * vax.md (unnamed patterns): Combine several reversed branch patterns - into one, using match_operator with relational_op and "%C". - - * optabs.c (expand_binop): Handle multi-word addition and subtraction. - - * Makefile.in (install-gnulib): Use RANLIB_TEST. Use libg_dir. - (libg_dir): New customization variable. - - * assert.h (__assert): Use standard GNU format for error messages. - -Tue Jan 1 21:25:00 1991 Richard Kenner (kenner at vlsi1) - - * reload1.c (eliminate_regs, case PLUS): Always move constant to the - outside of a PLUS expression. - -Tue Jan 1 11:45:22 1991 Richard Stallman (rms at mole.ai.mit.edu) - - * ecoff-cmp: Specify `c' in option to tail. - - * stor-layout.c (layout_record, layout_union, layout_type): - Use ROUND_TYPE_ALIGN and ROUND_TYPE_SIZE to compute - alignment and size of records, unions and arrays. - * ROUND_TYPE_ALIGN: New. Args are type, spec'd align, other min align. - * ROUND_TYPE_SIZE: New. Args are type, size of contents, align. - - * reload1.c (emit_reload_insns) [PRESERVE_DEATH_INFO_REGNO_P]: - Scan output and output-address reloads together. - Check for matching hard reg. - - * config.gcc: Set proper shell vars in big dispatch. Not `machine'. - (i386-isc): New alternative. - -Tue Jan 1 08:29:49 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * reorg.c (update_block): Turn bb_tick update back on; it is needed, - after all. - -Mon Dec 31 18:12:07 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * genattrtab.c (write_test_expr, case EQ_ATTR): Use correct expression - number for attribute value. - - * cse.c (cse_insn): Use single_set when looking for an insn that sets - cc0 followed by one that no longer does. - - * recog.c (find_single_use): If the next insn after one that sets - cc0 is not an INSN or JUMP_INSN, return 0; don't blow up on a NOTE. - - * emit-rtl.c (emit_insn_before, emit_insn_after, emit_insn): Return - something sensible if a SEQUENCE of length zero was passed. - We no longer make a SEQUENCE with XVEC == 0, so don't test for it. - - * reload1.c (emit_reload_insns): Handle gen_move_insn returning - no insns (occurs on RT for dummy registers). - - * rtl.h (reg_cc0_rtx, find_cc): No longer needed. - * emit-rtl.c: Likewise. - * conditions.h: Entire file is #ifdef HAVE_cc0. - * final.c (CC_STATUS_INIT): Make a null default #ifndef HAVE_cc0. - (cc_status): No longer exists #ifndef HAVE_cc0. - (final_scan_insn): Do CC processing only #ifdef HAVE_cc0. - (alter_cond): Only exists #ifdef HAVE_cc0. - * genemit.c (gen_exp): No longer have CC0_REGNUM or reg_cc0_rtx. - * genoutput.c (main): Include insn-config.h before conditions.h. - * reorg.c: Likewise. - * jump.c (rtx_equal_for_thread_p): Remove reference to CC0_REGNUM; - we'll have to do this optimization some other way later. - * tm-a29k.h (NOTICE_UPDATE_CC): Deleted. - -Mon Dec 31 14:44:31 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * reload.h (enum_reload_when_needed): - New alternatives RELOAD_FOR_OUTPUT, RELOAD_FOR_INPUT. - * reload1.c (choose_reload_regs): Use those when appropriate. - (mark_reload_reg_in_use): Record this usage specially. - (reload_reg_free_p, reload_reg_free_before_p): Handle this usage. - (reload_reg_reaches_end_p): Likewise. - (emit_reload_insns): Treat RELOAD_FOR_INPUT like RELOAD_OTHER. - - * i386.md (push for SFmode): Operand of fst was missing. - -Mon Dec 31 08:50:17 1990 Craig Burley (burley at pogo.ai.mit.edu) - - * stor-layout.c (layout_type): For ARRAY_TYPE case, don't try - and compute a size if there is no TYPE_MAX_VALUE for the index. - * tree.c, tree.h (build_index_2_type): New function, like - build_index_type except it accepts the low value as an arg instead - of assuming 0. - -Mon Dec 31 08:09:10 1990 Michael Tiemann (tiemann at cygnus.com) - - * cplus-typeck.c (c_expand_return): Handle case when we try - to return a void value (such as a void function call) in a - function returning void, and there are cleanups to run. - -Sun Dec 30 21:08:32 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * tm-a29k.h (TARGET_VERSION): Can't use target_flags since we can - be called from gcc.c. - - * tm-rs6000.h (REG_ALLOC_ORDER): Put r12 after r13; it might be - holding a DImode value and so might be very expensive (we won't - worry about TImode). - - * rs6000.md (subtract patterns): Fix incorrect operand number in %I. - (movti): Disallow indexed memory operands. - - * out-rs6000.c (print_operand, case 'm'): Fix typo. - (includes_rshift_p): Correctly compute mask. - - * out-a29k.c (output_operand): Add missing parentheses. - (print_operand): Replace if/then/else structure with switch statement. - - * a29k.md (beq, bne): Try to use NE test whenever possible; it - will produce better code if we have bit-tests. - -Sun Dec 30 12:02:03 1990 Michael Tiemann (tiemann at cygnus.com) - - * tm-sparc.h (PRINT_OPERAND): Put 'R' case before REG so that it - takes when 'R' is passed in as CODE. Also, handle 'B' letter. - - * sparc.md: (pattern for converting DFmode to SImode): Second - argument to `output_asm_insn' should be `operands', not zero. - (tablejump): The jump insn is "jmp", not "jump". - (gen_fixtruncdfsi2): operands[2] should get the pseudo, not - operands[3] (which is nonexistent). - (call): Fix typo which had %o7 being emitted as %o. - (various patterns): Fixed places where match_operand had the wrong - operand number. - -Sat Dec 29 17:27:00 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * sparc.md: cc_status no longer handles condition code updates. - Instead, condition codes are explicitly set and used via - hard register 0. Special attributes specific to condition codes - (such as whether conditional branches should test the integer or - floating-point condition codes, or that the condition codes cannot - be tested for a condition which would test the overflow bit) are - handled by encoding the attribute in the mode for the condition - code register. - (type attributes): type "unary" insns have one input operand (1) - and one output operand (0) - type "binary" insns have two input operands (1,2) and one output (0) - type "compare" insns have one or two input operands (0,1) and no output - type "move" and type "arith" have been deleted. - (prescan attribute): Deleted. Machine description now puts - floating-point zero in registers when needed. - (use_cc attribute): Deleted. - (fpcc define_delay): No longer depend on "use_cc" attribute. - Also, fpcc delay characteristics hold for "fpcc" type insns. - (cc attribute): Deleted. - (cmpxx patterns): Now written as `define_expand's so we can stow - away operands. When the pattern that will use the results of the - conditional test is emitted, it can use these operands to figure - out the right way to emit the compare. - (bcc patterns): Rewritten to emit comparison (based on stowed-away - info) before emitting branch. - (scc patterns): Handle all the cases with branch-free code. - Added new pattern to recognize (x + (i == 0)). - (movsi pattern recognizer): Split into two patterns so that e.g. - "(set:SI (mem:SI ...) (const_int 5))" is never considered valid. - Instead this has to be a two-insn sequence. - (mov{hq}i pattern recognizers): Ditto. - (movstrsi): Force operands[2] out of memory if it was in memory. - ({zero,sign}_extendXY): Now written as `define_expand's instead of - `define_insn's for more accurate machine modeling. - Added new pattern to optimize bit-field compares. - (floatsisf2 patterns): Delete redundant setting of "in_call_delay" - attribute. - (fix_trunc{sf,df}si2 pattern): Use clobberable register in which - the conversion can take place. Used to use %f30,%f31. - ({add,sub}di3 pattern): Put explicit clobber of (reg 0) in the - pattern. - (negdi2 pattern): Ditto. - Added new patterns to handle merging of addition/subtraction with - condition code testing (with (reg:CC_NOOV 0)). - ({and,ior,xor}cbsi3 pattern): Obsolete. Deleted. - Added patterns to represent setting of condition codes in addition - to performing logical operations. - ({neg,abs}df2 pattern): Use `R' print letter to overcome the need - to use a C action instead of a simple template. - (ash{l,r}{hi,qi}3): Define patterns for shifts on sub-SImode - operands. - (jump pattern): Use `*' print code to obviate the need for a C - action when a template can do. - (tablejump pattern): Ditto, with `^' code as well. - Deleted `define_split's that were used to handle mem-mem moves in - the case of PIC generation. Since all move insns are emitted and - maintained as SPARC-valid insns, these should no longer be needed. - (various patterns): (HI ...) is spelled (HI:SI ...). Also, use - `gen_lowpart' instead of building subregs directly. - New `define_split's were added to split scc insns into simpler - components which have single-insn templates. - Fixed a return peephole when returning a SFmode value (it was - missing the "ret"!). - Lots of complicated peepholes that brought cc testing and - arithmetic operations together were deleted. This is because the - combiner should now handle all these cases. - - * out-sparc.c (sparc_compare_op{0,1}): New global variables. - Used to hold the operand(s) to compare insns in lieu of emitting a - compare. - (reg_or_cc0_operand): Deleted. - (normal_comp_operator): New function. - (cc_arithop): Now returns 0 for PLUS and MINUS. - (cc_arithopn): Now returns 0 for XOR. - (gen_compare_reg): New function. - (sparc_address_cost): Simplified because it turns out it doesn't - matter what is returned for illegitimate addresses. - (hard_regno_mode_ok): Updated to use these new #defines. - (C_MODES): New #define, for condition code modes. - (S_MODES): Ditto, for single-word (and smaller) quantities. - (D_MODES): Ditto, for double-word (and smaller) quantities. - (T_MODES): Ditto, for tetra-word (and smaller) quantities. - (SF_MODES): Ditto, for SFmode quantities. - (DF_MODES): Ditto, for SF_MODE, DFmode, SCmode, etc. - (TF_MODES): Ditto, for DF_MODE, TFmode, DCmode, etc. - (output_floatsi{df,sf}2): Greatly simplified. - (output_pic_sequence,output_pic_sequence_2,fp_zero_hook, - output_tail_call): Turned off. - - * tm-sparc.h (ASM_SPEC): Pass `-k' to assembler if compiling PIC. - (WORDS_BIG_ENDIAN): Define as 1, not 0. - (FIXED_REGISTERS): %f30 and %f31 are now allocatable. - (REG_CC0_RTX, CC0_REGNUM): Deleted. - (EXTRA_CC_MODES): New modes CC_NOOVmode and CCFPmode. The former - is for when the overflow bit it not to be tested; the latter is - for when the condition is sitting in the floating point unit. - (SELECT_CC_MODE): New macro. - (FINAL_PRESCAN_INSN): Deleted. - (CC_* macros): Deleted. - (PRINT_OPERAND_PUNCT_VALID_P): New valid chars are '#' (for - whether to print a noop or not), '*' (for whether to print a ",a" - or not), and '^' (for whether to emit code for PIC branch or not). - (PRINT_OPERAND{,_ADDRESS}): Replace calls to fprintf by calls to - fputs where that is convenient. - - * expr.h, cplus-dbxout.c: #ifdef BYTES_BIG_ENDIAN should be #if. - - * reload.c (struct replacement): Add new field subreg_loc. - (push_reload): If reloading SUBREG_REG of a paradoxical SUBREG, - store the location of the SUBREG in subreg_loc in REPLACEMENTS. - (push_replacement): Initialize subreg_loc. - (subst_reloads): Don't produce nested SUBREGs; use subreg_loc. - - * regclass.c (regclass): Handle (set X (op CONST Y)) properly when - the modes of operands 0 and 1 are different. - -Sat Dec 29 16:37:10 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * cccp.c (macroexpand): Test traditional when computing expansion size. - - * toplev.c (compile_file): - If profiling, leave some space after `gcc_compiled.'. - * tm-m88k.h, tm-sparc.h, tm-sun386i.h (ASM_IDENTIFY_GCC): Deleted. - - * reload1.c (emit_reload_insns): Set reg_reloaded_contents, etc, here. - (choose_reload_regs): Not here--except for reg_has_output_reload. - - * c-parse.y (nested_function, notype_nested_function): - Use compstmt for body, not compstmt_or_error. - - * Makefile.in (install-headers): Use basename on - * stupid.c (stupid_mark_refs): Really do mark clobbered hardreg - live before the insn. - -Fri Dec 28 05:44:10 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * emit-rtl.c (subreg_lowpart_p): Use correct modes in - WORDS_BIG_ENDIAN case. - - * reload.c (combine_reloads): Don't try to reference - insn_operand_constraint for an ASM insn. - Fix typo in testing for modified operand. - -Thu Dec 27 19:02:54 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * cse.c (cse_insn): Ensure we invalidate SET_DEST if SET_SRC is a CALL. - - * cse.c (fold_rtx): Save mode of original first operand in case this - is becoming (sign_extend (const_int)). - -Thu Dec 27 16:15:56 1990 Tom Wood (wood at dg-rtp.dg.com) - - * m88k.md, out-m88k.c (CCmode): Use it. - (emit_bcnd): Avoid loosing when bcnd is changed into sxx. - (hi16/lo16): Don't use these to form 16-bit immediate values. - Introduce and use %X/%x. - (length attribute): Make better use of defaults. - - * tm-v88r32.h (LIB_SPEC): Goes here rather than in xm-v88r32.h. - * xm-*88*.h: Clean these up. Most differences go away by relying - on the 88open standards. - -Thu Dec 27 12:48:26 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * expmed.c (store_bit_field, extract_bit_field): - Change #ifdef to #if, testing BYTES_BIG_ENDIAN. - -Thu Dec 27 07:36:45 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * reorg.c (find_end_label): Ignore USE and CLOBBERs when looking for - label at end of function. - -Wed Dec 26 22:35:59 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * emit-rtl.c (sequence_element_free_list, sequence_result): New vars. - (restore_emit_status, init_emit): Initialize them. - (emit_insn_before, emit_insn_after, emit_insn): Save SEQUENCE in - sequence_result. - Make these three routines more alike in structure. - (start_sequence, end_sequence, push_to_sequence): Cache INSN_LIST pairs - in sequence_element_free_list rather than making new ones. - (start_sequence): No longer return unused rtx; only one caller - needed to be changed (in function.c, see below). - (end_sequence): No longer has argument. - (gen_sequence): Try obtaining a pre-built SEQUENCE from - sequence_result; no longer special-case length 0 vectors. - * function.c (fixup_memory_subreg): start_sequence no longer - returns an rtx and end_sequence no longer has an argument. - * rtl.h (start_sequence): Now void. - (push_to_sequence, end_sequence): Define. - -Wed Dec 26 13:19:40 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * gnulib.c: No longer #undef perform_* if not __GNUC__. - (perform_*): Define each if not already def. - -Tue Dec 25 17:31:17 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * loop.c (get_condition): Rework scan that looks for sets of things - being compared to allow intervening insns; check to ensure that - they don't set something that we need. Return 0 if the best we can - do is find something whose mode is in class MODE_CC. - - * calls.c (emit_call_1): RETURN_POPS_ARGS now gets the length of - arguments on the stack and returns the number of bytes popped by the - called function. - * output.h (current_function_pops_args): Change description. - * function.c (current_function_pops_args): Likewise. - (assign_parms): Initialize current_function_pops_args here. - (init_function_start): Not here. - * tm-*.h (RETURN_POPS_ARGS): Reflect new meaning. - (FUNCTION_EPILOGUE): Use new meaning of current_function_pops_args. - * out-i386.c (function_epilogue): Likewise. - -Tue Dec 25 15:52:06 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * gnulib.c (all functions): Support a hook for redefining contents. - These hooks are called perform_addsi3, and so on. - They are used only if compiling with GCC. - - * rtlanal.c (single_set): Moved from loop.c. - - * cse.c (fold_rtx): For a MEM, fold address when looking for constant. - (cse_insn): When fetch a constant label from a dispatch, - substitute into following tablejump. - (find_best_addr): Clear do_not_record before hashing. - * jump.c (mark_jump_label): Don't record table-labels on non-jumps. - - * m68k.md (casesi_2 recognizer): Use register_operand as predicate. - -Mon Dec 24 17:54:42 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * cse.c (fold_rtx): Handle ADDR_DIFF_VEC like ADDR_VEC, - when the index in it is constant. - - * c-decl.c (start_function): Handle new option -Wmissing_prototypes. - (c_decode_option): Likewise. - -Mon Dec 24 07:21:06 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * rtl.h (reload_completed, reload_in_progress): Now defined here. - * output.h (reload_completed): No longer defined here. - * emit-rtl.c, optabs.c, recog.c, sched.c, toplev.c, out-a29k.c: - Don't define reload_in_progress or reload_completed. - * a29k.md, romp.md, rs6000.md: Likewise. - - * machmode.def: Terminate GET_MODE_WIDER_MODE chains with VOIDmode, - not zero. - (CCmode): New mode. - * machmode.h (enum machine_mode): Includes modes in EXTRA_CC_MODES, - if defined. - (enum mode_class): New class MODE_CC; delete MODE_FUNCTION. - * rtl.c (mode_name): Define to be known size; add names for extra - CC modes, if present. - (mode_class, mode_size, mode_unit_size, mode_wider_mode): Define - to be known size. - (init_rtl): Initialize extra CC modes. - -Sat Dec 22 19:33:54 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * tm-i386v.h (MAXPATHLEN): Define if not already defined. - * tm-i386vgas.h: New file. - - * out-i386.c (print_operand_address): Handle scaled indexing. - -Sat Dec 22 11:15:03 1990 Tom Wood (wood at dg-rtp.dg.com) - - * m88k.md, out-m88k.c, tm-m88k.h (swapped cmpsi): Don't rely on - NOTICE_UPDATE_CC doing the job. Instead, compliment the swapped - compare. Also, make COMPARE SImode. - (and/cmpsi/sxx/neg): Add patterns to do this in one instruction. - Change sign_extend/sxx to neg/sxx for other cases. - (iorsi3/xorsi3): Use alternatives and explicit patterns. - (casesi): Make the constant the second operand to cmpsi. - (output_and): Must compliment value to use the clr instruction. - (output_reg_adjust): Simplify the interface and use TEMP_REGNUM. - (TARGET_SWITCHES): Eliminate needless no-* options. - -Fri Dec 21 05:46:34 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * recog.c (find_single_use{,_1}): New functions. - * rtl.h (find_single_use): Declare it. - -Thu Dec 20 21:27:36 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * optabs.c (init_optabs): Add __ to names of floating compare fcns. - -Thu Dec 20 18:21:38 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * expr.c (expand_builtin, case BUILTIN_FFS): Get mode for arg from - tree, not rtx, in case arg was CONST_INT. - -Thu Dec 20 17:31:46 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * c-decl.c (init_decl_processing): Don't define `ffs'. - -Wed Dec 19 16:59:38 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * gcc.c (main): Handle if SIGPIPE not defined. - - * cccp.c (xmalloc, xrealloc, xcalloc): Don't declare malloc or realloc. - -Wed Dec 19 06:50:17 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * combine.c (gen_lowpart_for_combine): Avoid making a nested SUBREG - when we are being passed a paradoxical SUBREG of MEM. - - * cse.c (new_basic_block): Compilations spend about 5% of their time - in this function so replace loop initializing qty_{first,last}_reg - with copy from a larger consec_ints. Only loop over extra entries. - (cse_main): Allocate consec_ints to be default size of max_qty large. - - * reorg.c (get_branch_condition): Fix typos when reversing condition. - (condition_dominates_p): Fix typo in comparison. - (redundant_insn_p): This function was taking about 4% of the - compilation time. Rework so it doesn't split, only looks at resource - usage if it finds a matching insn (since it usually won't), and - improve code that looks at resources. Now takes about 0.5% of - compilation time. - (fill_simple_delay_slots): Always call mark_target_live_regs with an - active insn; currently being called with a CODE_LABEL. - -Tue Dec 18 14:08:11 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * out-sparc.c: Fix uninitiated comment. - - * final.c (end_final): Call strip_off_ending to remove the file - name suffix. - (final_start_function): Execute SDB_DEBUGGING_INFO code only if - generating SDB symbol info. - - * Makefile.in (cccp.o): Depend on gcc. - - * tm-sparc.h, xm-sparc.h: Make this machine big-endian. - - * expr.c (expand_builtin): Pass correct arguments to gen_cmpstrsi4. - - * recog.c (nonmemory_operand): Reject reg whose class is NO_REGS. - - * c-decl.c (finish_struct, grokdeclarator): - Strip NON_LVALUE_EXPR more than once. - - * combine.c (combine_instructions): Check that a jump insn uses CC0 - before trying to combine it with an insn that sets CC0. - - * cplus-decl.c, cplus-search.c, gcc.c, objc-actions.c, rtl.c, stmt.c, - symout.c, toplev.c: Use xmalloc instead of malloc. - - * cccp.c (do_include): Check for truncation of precompiled file name. - -Mon Dec 17 16:53:46 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * c-typeck.c (build_binary_op_nodefault, build_conditional_expr): - Fix indentation. - * reload1.c (choose_reload_regs): Fix indentation. - (gen_input_reload): Fix typo in comment. - - * reload.c (find_reloads): Call abort when the last operand is - marked commutative, to make it easier to find this error. - - * rtlanal.c (refers_to_regno_p): Don't crash if X is 0. - -Mon Dec 17 15:29:34 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * local-alloc.c (combine_regs): No need to see if suggested hard reg - is suitable; if it isn't, it won't end up being used. Existing tests - were too conservative. - - * jump.c (delete_jump): When searching for the SET of the condition - codes for a jump insn, give up if we hit a SEQUENCE. - -Mon Dec 17 02:14:06 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * c-typeck.c (c_size_in_bytes): New function. - (pointer_int_sum, pointer_diff): Use that. - (pointer_diff): Handle warn_pointer_arith. - -Sun Dec 16 22:27:11 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * c-decl.c (start_decl): Ignore with error any init for a parm. - (finish_decl): Likewise. - -Sun Dec 16 01:02:57 1990 Michael Tiemann (tiemann at cygnus.com) - - * jump.c (rtx_equal_for_thread_p): Treat the special CC register as - equivalent for the two threads we are looking at. - - * combine.c (try_combine): Fix typo in loop over I1 with PARALLEL - body. Also, don't test HARD_REGNO_MODE_OK for hard registers we are - thinking about combining. This screws up using registers to - represent the condition codes, and probably doesn't save anything in - the general case. - - * expmed.c (expand_and): Comment says that result is always stored - in target, so the code now does this. - -Sat Dec 15 18:09:46 1990 Michael Tiemann (tiemann at cygnus.com) - - * loop.c (get_condition): Try a little harder to find the setter of - the register used in a conditional test. On the SPARC it is vital - to either find the setter of the register used for the condition - codes or for this function to return 0. Also, have test for - non-NULL, matching `set' govern both normal and reversed cases of - comparisons. - - * jump.c (jump_optimize): When moving USE insns from before jumps to - after BARRIERs, put the label for the redirected jump after the - BARRIER instead of just before the PREV_INSN of the original target. - This gets around problems when there are NOTEs between the BARRIER - and the original target. - -Sat Dec 15 10:16:29 1990 Michael Tiemann (tiemann at cygnus.com) - - * sparc.md (cmpdf,cmpsf): No longer a define expand. Now depends - on fp zero being loaded into a register. - (tstsi,tstdf,tstsf): Deleted. - (seq,sne): Fail if we are not testing operands of integer mode. - (movsi): Split recognizers into two parts. The first handles - [reg,mem,zero] <=> [reg,mem]; the second handles [reg,const] => - [reg]. - (adddf,subdf,negdf): Simplify output routines using 'R' as an - output letter. - (tail_call): Turn this off. It is never used, and it depends on - routines which are about to become broken. - (various places): Add USE_CC attribute where appropriate. - (various places): Change (use (reg:SI 0)) to (clobber (reg:SI 0)) - and delete CC_CLOBBER attribute from the pattern. - * out-sparc.c (move_operand): No longer recognize certain - immediates as a `move_operand'. - (move_reg_or_immed_operand): New recognizer for immediates no - longer recognized by `move_operand'. - (output_pic_sequence*): Turned off. - (sparc_address_cost): Simplified, since the value returned is not - used if the address is not legitimate. - (emit_move_sequence): Use `gen_lowpart' instead of building - SUBREGs explicitly. - (make_f30_contain_zero): Deleted. - (output_tail_call): Turned off. - * tm-sparc.h (PRINT_OPERAND): Recognize 'R' code letter, which - means print the name of REGNO (X)+1. No longer recognizes the 'G' - letter. - (PRINT_OPERAND,PRINT_OPERAND_ADDRESS): Replace various calls to - fprintf with calls to fputs or fputc. - (FINAL_PRESCAN_INSN): No longer defined. - -Sat Dec 15 14:37:51 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * recog.c (offsettable_address_p): Check validity in narrower modes. - -Sat Dec 15 11:21:55 1990 Tom Wood (wood at dg-rtp.dg.com) - - * syms.h sdbout.c (T_VOID): Ensure that T_VOID is provided a - default meaning if <syms.h> is used. - -Fri Dec 14 14:39:10 1990 Tom Wood (wood at dg-rtp.dg.com) - - * m88k.md (increment and test peephole): Updated so it would apply - with the new method for doing cmpsi/bxx. - * m88k.md (function units): Replace decode with alu and update - accordingly. - * out-m88k.c (emit_test): Add a mode parameter. - * tm-m88k.h (GO_IF_LEGITIMATE_ADDRESS): Constrain how the arg - pointer can be used. - -Fri Dec 14 06:48:07 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * expr.c (convert_move): Add missing argument to some recursive calls. - - * jump.c (invert_jump): Pass new label to recursive call. - - * expr.h (setcc_gen_code): Replaces setcc_gen_fctn; stores insn_code. - (expand_and, emit_store_flag, label_rtx): Add definitions. - (get_condition, compare_from_rtx): Likewise. - * rtl.h (STORE_FLAG_VALUE): Provide a default value of 1. - (reg_set_last): Add definition. - (const_true_rtx): New variable. - * cse.c: Remove defaulting of STORE_FLAG_VALUE from here. - (const_true_rtx): Remove static version; now global. - * emit-rtl.c (const_true_rtx): Define here. - (gen_rtx): Return const_true_rtx for CONST_INT of STORE_FLAG_VALUE. - (init_emit_once): Initialize const_true_rtx. - * expmed.c (emit_store_flag): Rewritten. Is passed the operands - to compare in addition to the compare operation and emits both the - comparison and the store-flag insn. - Handles special-case of testing for A < 0 and A >= 0. - If result is constant, just return it. - Accepts an argument saying how to normalize the result and does - appropriate normalization. - Give preference to using the sign bit rather than the low-order bit. - Allow sxx insns to fail. - If don't have seq or sne insns, can sometimes do with abs. - * expr.c (expand_expr, case COND_EXPR): For X ? A + 1 : A, only - do store_flag if it is cheap. - (do_jump): True comparisons return STORE_FLAG_VALUE, not 1. - (compare_constants): Correctly handle unsigned comparisons. - Return STORE_FLAG_VALUE, not 1, for true comparison. - (compare_from_rtx): New name for compare1. - Accept size and alignment, for BLKmode. - No longer statuc. - (compare, compare_from_rtx): No need to pass forward and reverse codes; - can trivially derive the reverse code from the forward one. - All callers changed. - If one operand is constant, make it the second one. - (compare): Let compare1 do most of the work. - (do_store_flag): Rewritten, now lets emit_store_flag do most of - the work. - Handles the special-case of comparing a single bit with zero., - Add additional argument ONLY_CHEAP; if non-zero, fail if it looks like - this will be an expensive operation; all callers changed. - If it looks like it will be possible to do a store-flag operation, - call emit_store_flag; if it can't do it, emit as assignments and a - jump. If it doesn't look possible to do a store-flag operation, return - zero before expanding anything. - * final.c: (final_scan_insn): Don't check STORE_FLAG_VALUE; if the - insn doesn't exist, we won't try to change it. - * genemit.c (gen_exp): Use const_true_rtx when appropriate. - * genrecog.c (add_to_sequence): Likewise. - (try_merge_1): Two nodes aren't identical if they are to test - different modes or if they have different values of EXACT. - * integrate.c: Don't supply a default value for STORE_FLAG_VALUE here. - * jump.c: Now includes expr.h (for emit_store_flag and get_condition). - (jump_optimize): Split optimization that made store-flag insn - into three separate optimizations, the first two of which are useful - even in the absence of store-flag operations. - (can_reverse_comparison): Set and use of cc0 must be immediately - adjacent. - (mark_jump_label): Abort if LABEL_REF codesn't contain a CODE_LABEL. - Consider two labels adjacent after reload if separated by just USE or - CLOBBER insns. - * loop.c: Now includes real.h. - (get_condition_for_loop): New function. All callers of get_condition - in this file now call this function. - (strength_reduce): no_labels_between_p now skips FROM. - (get_condition): No longer static. - Refine cases when we can't reverse a comparison operation. - * optabs.c (init_optabs): Initialize and define setcc_gen_code - instead of setcc_gen_fctn. - * rtlanal.c (no_labels_between_p): Skip FROM, like as ..._between_... - functions do. - (no_labels_between): Deleted. - (reg_set_last, reg_set_last_1): New functions. - * Makefile.in (jump.o): Now include expr.h. - (loop.o): Now includes real.h. - - * c-tree.h (int_ftype_cptr_cptr_sizet, ptr_ftype_ptr_cptr_sizet): - New names. - - * alliant.md, i386.md, m68k.md, m88k.md, ns32k.md, sparc.md: Add mode - to comparison operators (EQ, NE, etc.) to agree with the mode of the - destination. - * out-m88k.c (emit_test): Likewise. - -Fri Dec 14 00:12:46 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * c-decl.c (finish_struct): Strip NON_LVALUE_EXPR from field width. - -Thu Dec 13 13:10:47 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * cplus-init.c (expand_vec_init): Add missing arg to - expand_exit_loop_if_false. - - * config.gcc (tron): Alias for gmicro. - - * c-decl.c (int_ftype_cptr_cptr_sizet): Variable renamed. - (ptr_ftype_ptr_cptr_sizet): Likewise. - - * gcc.c (default_compilers): Handle .C. - - * Makefile.in (enquire.o): Add -I. so can find stddef.h. - (install-cross): Install cc1obj like the others. - - * Makefile.in (gnulib.target): Renamed from gnulib. - (gnulib): Renamed from tmpgnulib. Rename that file in this rule. - Also delete stamp-gnulib2 here. - (gnulib.portable, gnulib.convert): Input now is named gnulib. - (GNULIB_TARGET, GNULIB2_TARGET): Define these vars (already in use). - (gnulib2.target): Renamed from gnulib2. - (gnulib2): New rule, alias for gnulib2.target. - - * local-alloc.c (local_alloc): Cast an enum used as index. - * optabs.c (emit_indirect_jump): Likewise. - * reload1.c (choose_reload_regs): Likewise. - -Thu Dec 13 12:38:31 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * expmed.c (store_bit_field): Verify that operand 1 of movstrict - satisfies its predicate. - -Wed Dec 12 17:26:21 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * gvarargs.h: Avoid duplicate inclusion using _VARARGS_H. - -Wed Dec 12 14:11:30 1990 Tom Wood (wood at dg-rtp.dg.com) - - * tm-m88k.h, out-m88k.c, m88k.md: Eliminated the fixed condition - code register. As a temporary measure, NOTICE_UPDATE_CC is used - to track swapped cmpsi cases. - - * m88k.md (shift patterns): Deal with TARGET_*_LARGE_SHIFT - uniformly with define_expand. Make gen_lshlsi3 generate ASHIFT - and eliminate the optimization patterns using ASHIFT. Eliminate - other optimization patterns that will be handled by combine. - -Tue Dec 11 22:13:48 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * expr.c (convert_move): With slt, handle dest that's invalid. - - * stmt.c, tree.h (stmt_nesting): - Typedef deleted; use `struct nesting *'. - * stmt.c (expand_start_cond): If exitable, make an exit label. - -Tue Dec 11 21:28:56 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * combine.c (subst, case SUBREG): Update TO for earlier - changes so we can always detect (subreg (mem ...)). - -Tue Dec 11 10:56:53 1990 Craig Burley (burley at pogo.ai.mit.edu) - - * stmt.c (expand_start_loop{,_continue_elsewhere}): Return pointer - to nesting structure (new type stmt_nesting). - (expand_exit_loop{,_if_false},expand_continue_loop): Accept pointer - to nesting structure, substitute loop_stack if 0 (same behavior as - before when there was no argument), so F90 CYCLE and EXIT statements - (like C's continue and break stmts) can refer to other than the - innermost loop. - (expand_start_cond): Uses new names for if-related labels that - reflect addition of "elseif" call, and sets endif_label to whatever - exit_label gets set to (so we don't generate two identical labels - for languages from which if is exitable via expand_exit_something). - (expand_start_elseif): New function, used by Fortran. - (expand_start_else): Moved above _end_cond so these four functions - appear in the order they get called; uses new names, and fills in - only endif_label if needed, not exit_label. - (expand_end_cond): Handles end of any if, not just if-without-else. - Generates both labels for next else/elseif pending (there was none) - and the endif itself, if they exist (and there will always be at least - one). - (expand_end_else): Gone, call expand_end_cond instead. - * c-parse.y, cplus-parse.y, objc-parse.y: Pass new 0 argument to - expand_..._loop_... to indicate the innermost loop; call - expand_end_cond instead of expand_end_else. - * tree.h: Typedef for stmt_nesting returned by expand_start_loop... - and change their return types accordingly. - -Mon Dec 10 06:59:14 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * combine.c (check_asm_operands): Delete from here. - * recog.c (check_asm_operands): Move to here; no longer static. - (validate_change): Don't assume change is valid is asm_noperands >= 0. - If recog_memoized returns < 0, accept change if asm_noperands >= 0 - and check_asm_operands returns non-zero. - (apply_change_group): Likewise. - (validate_replace_rtx_1): Swap operands on commutative operation - if first is constant. - Use plus_constant to simplify a PLUS with CONST_INT as second operand. - - * reload.c (find_equiv_reg): We must have a stable SP if GOAL is - a MEM that uses SP. - - * combine.c (try_combine): Don't do anything if I2 or I1 - has an ASM_OPERANDS and CLOBBERS; we'll need those clobbers - and it is too messy to try to get things set up correctly. - -Sun Dec 9 22:07:41 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * cccp.c (collect_expansion): Don't check for /* */ concat here. - (macroexpand): Always use raw arg if traditional. - - * c-parse.y (unary): Mark address of label as constant. - -Sun Dec 9 14:45:34 1990 Michael Tiemann (tiemann at cygnus.com) - - * cplus-class.c (propagate_basetype_offsets): Take effect on ASSOC - before recursive calling. - (finish_struct): Call `layout_decl' with zero for KNOWN_ALIGN - when laying out TYPE_DECL. - * cplus-tree.c (assoc_value): Change recursion condition to compare - ASSOC_VALUE (assoc) against TYPE_MAIN_VARIANT (type) instead of just - against type. - -Sat Dec 8 10:40:00 1990 Tom Wood (wood at dg-rtp.dg.com) - - * m88k.md (attributes): Reorganize and include a block diagram. - Make better use of defaults. - * m88k.md (peephole), out-m88k.c, tm-m88k.h (short_branch): Add - the sparc peepholes for changing bsr/br into bsr.n/addu or - bsr.n/subu. Install the length attribute for this. Requires the - use of `def' to accomodate broken assemblers in the bsr.n/addu - case. - -Fri Dec 7 06:12:43 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * reorg.c (find_end_label): Increment usage count of label we return - so we know it won't go away. - (dbr_schedule): Decrement count of end label and delete it if dead. - -Wed Dec 5 17:36:23 1990 Tom Wood (wood at dg-rtp.dg.com) - - * m88k.md: Add instruction attributes for scheduling and delay - slot information. - * m88k.md (addsi pattern): Adding large constants does arise. - (udivsi pattern): Wrong predicate. - * tm-m88k.h, out-m88k.c (NOTICE_UPDATE_CC): Do so using - attributes. - - * make-m88k, make-m88kdgux: Say how to create m88k-trace.asm. - -Wed Dec 5 13:52:16 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * optabs.c (expand_binop): Support insn_before == 0. - - * function.c (optimize_bit_field): Fix wrong arg to validate_change. - - * Makefile (includes): Export LIB. - -Wed Dec 5 13:31:57 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * combine.c (try_combine): Don't discard CLOBBERs from an insn - with ASM_OPERANDS. - -Tue Dec 4 16:12:21 1990 Tom Wood (wood at dg-rtp.dg.com) - - * tm-m88k.h, out-m88k.c, m88k.md: More cleanups: introduce - POWER_OF_2 for tests (x && (x & (x-1) == 0); rename predicate - functions *_p instead of *_operand; cleanup addsi3 insns; simplify - udivsi3 insns; simplify memory shift insns; make LOW_SUM and HIGH - SImode instead of VOIDmode; add a predicate to the increment and - test peephole insn; deal with setting SFmode to zero; delete bogus - pattern for divide-by-power-of-2. - * make-m88k, make-m88kdgux: dg88k-trace.asm is now m88k-trace.asm. - Move movstr-m88k.sh to config/m88k-movstr.sh. - -Mon Dec 3 19:08:03 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * Makefile.in (gnulib2.ready): New target. - (stamp-gnulib2): Depend on that. - Avoids recompiling gnulib2 each time cc1 changes. - -Mon Dec 3 16:17:56 1990 Tom Wood (wood at dg-rtp.dg.com) - - * tm-m88kdgux.h, xm-m88kdgux.h (SEPARATE_AUX_OUTPUT): Should be in - xm-m88kdgux.h. - * tm-m88k.h, out-m88k.c, m88k.md: Eliminated the fixed literal - synthesis register. Reworked the addressing method to be like the - sparc (uses HIGH and LO_SUM). Numerous cleanups. These changes - are based on work done by Steve Chamberlain (steve@cygnus). - * tm-m88k.h, out-m88k.c (BLOCK_PROFILER, FUNCTION_BLOCK_PROFILER): - Implemented. - -Mon Dec 3 15:19:04 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * cccp.c (special_symbol): Use time_t as type of t. - - * m88k-movstr.sh, m88k-trace.asm, va-m88k.h: New files. - - * gcc.c: Don't define R_OK, etc. if already defined. - - * out-sparc.c (finalize_pic, emit_move_sequence, output_arc_profiler): - Finish change to emit HIGH and LO_SUM as Pmode instead of VOIDmode. - -Sun Dec 2 22:13:53 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * config.gcc (tower): New alternative. - (mips-news): Adapt for version 2. - - * tm-tower.h, tm-tower-as.h, xm-tower.h: New files. - -Sun Dec 2 17:47:28 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * reload1.c (eliminate_regs, case ASM_OPERANDS): Fix typo in testing - for changed vector. - - * out-rs6000.c (output_epilogue): Fix typo restoring general registers. - (print_operand): Add new option %H. - * rs6000.md: Add (clobber (reg:SI 64)) to many patterns even though - they don't clobber MQ to allow combining to work well. This will be - removed once combine knows how to add clobbers when required. - Change patterns to reflect new canonicalization rules. - Where we have (and (xshift)), add patterns for (zero_extend (xshift)). - (andsi3, xorsi3): Fix bug in case where two insns are needed. - (moveti): Don't call change_address when in reload. - (sign_extend): Add patterns for sign extend preceeded or followed by - one of the shifts it will do. Use %H to output the merged shift. - - * out-romp.c (print_operand): Allow exact_log2 result to be zero. - * romp.md: Likewise. - * tm-romp.h (CONST_OK_FOR_LETTER): Likewise. - - * a29k.md (type attribute): Add types for floating-point insns. - (in_delay_slot attribute): Update to allow for new types. - (function_unit definitions): Add definitions for floating-point units. - (andcb*3): Delete obsolete names. - (convert insn): Use register_operand instead of gen_reg_operand for - floating-point operand. - (cpeq, feq, deq, etc): New patterns. - (floating-point arithmetic): Add support for 29050 insns and - accumulators; indicate function unit usage. - (ior/and patterns): Put NOT as second operand. - (orn insn): New, for 29050. - (load patterns): If using match_operator, make it the highest operand - number. - (loadm insns): Add workaround for rev A1 bug on 29050. - (negsf2, negdf2): Don't use XOR to negate on 29050. - (movsf, movdf): Add support for accumulators on 29050. - (movsi, movhi, movqi): No need to support special->special copies. - Support consthz insn on 29050. - (compare, scc, and branch insns): Rework to not use cc0. Use a pseudo - register instead. Compare doesn't generate any code, but merely - saves the operands. scc and branch then emit the appropriate compare - and jump (if branch) insns. - (tstsi): Delete pattern; not used when no cc0. - (peepholes): Remove peepholes to convert jumps to scc insns; now - done in jump.c. - * out-a29k.c (a29k_compare_*): New variables. - (long_const_operand): Anything with low-order 16 bits zero is not a - long constant on the 29050. - (accum_reg_operand): New function. - (gen_reg_operand): Returns false for accumulator registers. - (output_operand): Allow accumulators. - (ne_comparison_p, fp_comparison_p, return_peep_operand): Deleted. - (fp_comparison_operator, branch_operator): New functions. - (output_compare): Deleted. - (print_operand): Change meaning of %b and %B. - Add new code %J. - * tm-a29k.h (TARGET_VERSION): Say if compiling for 29050. - (TARGET_FLAGS): Add -29000 to turn off support for 29050; this is - still the default. - (various register macros): Add support for the floating-point - accumulators on the 29050. - (CONST_OK_FOR_LETTER): Use 'O' for a constant that can be set using - conthz on the 29050; keep old definition for 29000. - (STORE_FLAG_VALUE): Now 0x80000000. - (ASM_FILE_START): Write ".cputype 29050" when compiling for 29050. - - * combine.c (subst): Put NOT, NEG, MULT, PLUS, and MINUS as the - first operand of commutative operations. Note that NOT used to be - put as the second operand but it has always been assumed that - MULT would be the first operand in address expressions, so we have - to change the previous canonicalization. This is possible now that we - have eliminated the andcbm3 operations. - * i860.md (andnot): Remove obsolete andcbsi3 name and place NOT - as first operand. - * m68k.md (fpm*): Delete patterns with MULT as second operand and - use "@" construct when possible. - * m88k.md (and.c, ior.c): Remove obsolete andcbsi3 and iorcbsi3 names. - Delete patterns with NOT as second operand. - (xor.c): Rewrite in new canonical form. - * mips.md (nor): Rewrite in new canonical form. - * pyr.md (bicw): Remove pattern with NOT as first operand, removing - obsolete name andcbsi3 in the process. - * sparc.md: Remove patterns with NOT as first operand. - Remove obsolete names andcbsi3, iorcb3, and xorcbsi3. - Rewrite xnor into new canonicalized form. - Add mode to HIGH and LO_SUM operations. - * vax.md (bic*): Remove obsolete andcbm3 names. - Put NOT as first operand when both generating and recognizing RTL. - (jlbc): Rewrite with NOT as first operand. - -Sun Dec 2 17:08:16 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * m68k.md (recognizer for casesi_2): Handle ASM_RETURN_CASE_JUMP. - - * stddef.h (ptrdiff_t): Prevent definition, as with size_t. - -Sat Dec 1 16:31:30 1990 Ron Guilmette (rfg at ncd.com) - - * dwarfout.c (lookup_filename, dwarfout_finalize): changed from - maintaining a linked list of filename entries to maintaining an - (expandable) array of filename entries instead. Also, changed - code so that *all* filename strings are output (to the .files - section of the asm file) in one swell foop just as the asm file is - being finalized rather than writing out new filenames one-by-one - as they arise (as previously). This circumvents a problem caused - by rfg's naive assumption that assemblers kept a stack of prior - section names (of depth > 1) which could be successively popped - via multiple `previous' directives. For some assemblers, the - depth of the stack is only 1 and they can get confused if you do - two (or more) `previous' directives in a row. Anyway, it is no - longer either necessary or useful to do that, so who cares. - - * dwarfout.c: added code to output newlines to the asm file just - prior to each and every change of section (for better readability - of the asm files). - - * dwarfout.c: changed code so that if DWARF_DESCRIBE_USED_EXTERNS - is defined, it forces DWARF_LOCATION_ATTRIBUTES to also be defined. - - * dwarfout.c: changed code so that if DWARF_LOCATION_ATTRIBUTES - is defined, it forces DWARF_DESCRIBE_FILES to be defined (to `1'). - - * dwarfout.c: changed code so that if DWARF_DESCRIBE_FILES is not - already defined (in the user's tm.h file) it will automatically be - defined (by default) to `1'. Also changed all instances of - `#ifdef DWARF_DESCRIBE_FILES' to `#if DWARF_DESCRIBE_FILES'. - The user must now intentionally *disable* this feature (by - defining DWARF_DESCRIBE_FILES to `0' in his tm.h file) if he - wishes to have the additional information about files suppressed. - - * dwarfout.c: changed comments relating to optional defines for - extended GNU DWARF features to include more information and to - add some additional clarity. - -Sat Dec 1 16:00:34 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * combine.c (subst): Call reverse_condition instead of - reverse_comparison. - We are allowed to reverse floating-point EQ and NE comparisons. - - * combine.c (subst): Call simplify_and_const_int for all AND - and ZERO_EXTEND cases and all cases where we make one of them. - Remove all other code in AND and ZERO_EXTEND cases. - (simplify_and_const_int): Rewritten to follow a consistent model - of tracking what AND's need to be done and which bits are not - significant. Consistently try a ZERO_EXTEND for all cases where - the result is an AND with a mode-wide mask. Move all remaining - cases from AND any ZERO_EXTEND cases from subst. - -Sat Dec 1 09:13:17 1990 Michael Tiemann (tiemann at cygnus.com) - - * cplus-tree.h (lang_type): Remove any_assigns_this, - none_assigns_this from type_flags. - * cplus-decl2.c (get_temp_name): If the initializer is a - pointer to zero, cache it in EMPTY_TABLE. - (finish_builtin_type): New function, to factor common code - arising from building internal structures. - * cplus-decl.c (init_decl_processing): Call it. - -Fri Nov 30 10:39:04 1990 Michael Tiemann (tiemann at cygnus.com) - - * cplus-decl.c (finish_function): Use CLASSTYPE_ASM_WRITTEN instead - of TREE_USED to indicate that we need debugging info for - TTYPE. - Note that nobody ever sets EXTENDED_DBX_DEBUG. For now, - change to test DBX_DEBUG. For later, change everything to - key off of EXTENDED_DBX_DEBUG. - Also, set `warn_return_type' to one always, since this warning - is too valuable to lose. - * cplus-tree.c (lang_output_debug_info): Don't test TREE_USED. That - field is already used by other routines, and we have all we need now - in CLASSTYPE_ASM_WRITTEN. - * cplus-dbxout.c (dbxout_type_method_1): Handle const, - volatile, and const/volatile member functions. - -Fri Nov 30 04:51:46 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * combine.c (reg_last_set_value): New variable. - (combine_instructions): Allocate and initialize it. - (record_dead_and_set_regs): Set reg_last_value to source - of assignment; clear it for a CLOBBER or partial assignment. - (subst): Use reg_last_set_value instead of interpreting the - insn in reg_last_set as if it was a single SET. - - * combine.c (gen_lowpart_for_combine): Call gen_lowpart for CONST_INT. - When making a new MEM, copy MEM_VOLATILE_P and MEM_IN_STRUCT_P. - If cannot recognize the argument, just form a SUBREG; usually, - it won't be recognized, but sometimes will allow further - simplifications. - - * regclass.c (reg_scan): Save size of uid map; reallocate if - we have more registers than we allocated. - Leave some extra room in map. - - * stmt.c (emit_case_nodes): Supply missing argument to emit_cmp_insn. - - * fold-const.c (decode_field_reference): Add missing arg declaration. - - * expmed.c (store_bit_field): Add missing last argument to - recursive call. - - * cse.c (cse_insn): Remove extra arg passed to rtx_equal_p. - - * Makefile.in (proto): Make protoize.1 and unprotoize.1. - (protoize.1, unprotoize.1): New targets. - (install_man): Install protoize.1 and unprotoize.1./ - * proto-unproto.1: New file. - - * loop.c (scan_loop): Properly set SET_SRC in movables entry for - MOVE_INSN == 1 and CONSEC > 0 case. - (force_movables): Don't look at SET_SRC when CONSEC > 0. - - * expr.c (expand_expr, case ARRAY_REF): Ensure TYPE_POINTER_TO - gets initialized after we build a variant type. - -Fri Nov 30 00:35:06 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * m68k.md (ashr of 16 to 24 bits): Use extl, not extw. - -Thu Nov 29 21:41:03 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * tm-vax.h (BLOCK_PROFILER, FUNCTION_BLOCK_PROFILER): New macros. - - * gcc.c (add_prefix): Add new element, don't replace old first elt. - - * dwarfout.c (dwarfout_finalize): Go to DEBUG_SECTION first thing. - -Thu Nov 29 17:50:43 1990 Richard Kenner (kenner at vlsi1.ultra.nyu) - - * stmt.c (expand_end_loop): Stop looking for branch to the loop - exit when we hit a NOTE_INSN_BLOCK_{BEG,END}. - * jump.c (duplicate_loop_exit_test): Likewise. - Also, only copy line-number notes. - - * integrate.c (expand_inline_function): Call expand_expr for the - arguments before allocating maps that are based on register numbers. - - * loop.c (loop_reg_used_before_p): Accept new argument, SET, to - indicate which part of INSN is setting the relevant register. - (scan_loop): Pass new arg to loop_reg_used_before_p. - - * function.c (optimize_bit_field): Don't assume ZERO_EXTRACT can - be replaced by MEM; use validate_change to check. - - * reload.c (find_reloads_toplev): Add missing arg to recursive call. - - * calls.c (expand_call): Correct two cases of missing mode to gen_rtx. - -Thu Nov 29 02:42:35 1990 Michael Tiemann (tiemann at cygnus.com) - - * version.c: Bump version number to 1.90.04. - - * toplev.c (rest_of_compilation): If FLAG_PIC is nonzero, emit any - special PIC code once we start really compiling a function (i.e., we - are not in an inline function). Inline functions cannot - meaningfully hold PIC code because there is no notion of position - independence in code that isn't really being written down. - - * Makefile.in: Don't build cplus-cadillac.o by default. Build - cplus-edsel.o instead. Until Lucid frees their programming - environment, their Cadillac will always be an Edsel to GNUsers. - - * stmt.c (fixup_gotos): Change loop to run in two passes so that - cleanups don't experience a race condition. - (expand_cleanups): Replace Nov 5 word-around with consistency check. - The same cleanups should never be run twice. - - * cplus-decl.c (lang_{init,finish}): Move these functions... - cplus-lex.c: ...to here. Also, make change to lang_init analogous - to Nov 27 change for C compiler. - - * cplus-decl.c (pushdecl): Don't warn about static/extern conflicts - if X is a TYPE_DECL. - (build_enumerator): Certain CONST_INT nodes cannot be coopted to be - the constant for enumerator. Mark them as non-shareable and don't - coopt them. - - * cplus-decl.c (lang_{init,finish}): Declare these to be void - functions to match new tree.h. - -Wed Nov 28 18:48:33 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * reload1.c (eliminate_regs): Convert (subreg (mem)) to (mem) when - not a paradoxical SUBREG. - -Wed Nov 28 17:15:43 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * emit-rtl.c (gen_label_rtx): Clear LABEL_NAME via gen_rtx. - -Tue Nov 27 21:54:15 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * varasm.c (assemble_external): Never write a .extern for a static - name. - - * recog.c (validate_replace_rtx_1): Handle making a SUBREG of a MEM - by trying a new MEM. - -Tue Nov 27 11:54:28 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * c-lang.c, objc-action.c: Include input.h. - (lang_init): Call check_newline here. - * toplev.c (compile_file): Not here. - Call lang_init after setting input_filename. - - * tree.h: Declare numerous functions that the front end must provide. - - * rtl.h (LABEL_REFS): Use operand 5, same as LABEL_NUSES. - - * toplev.c (warn_return_type, W_options): Handle -Wreturn-type here. - * c-decl.c: Not here. - * flags.h: Declare it here, not in c-tree.h. - - * gcc.c (pexecute): Wait and retry if fork fails. - - * expr.c (do_jump): Pass all args to get_inner_reference. - (expand_assignment): Fix typo in arg to get_inner_reference. - - * tm-hp9k320.h (STANDARD_STARTFILE_PREFIX): Don't alter if already set. - -Mon Nov 26 18:28:51 1990 Michael I Bushnell (mib at churchy.ai.mit.edu) - - * cccp.c (handle_directive): Do backslash-newlines inside of - strings. - -Mon Nov 26 15:39:29 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * cccp.c (main): Handle -w. - (warning): Do nothing if -w. - * gcc.c (compilers): Pass -w to cpp. - - * c-decl.c (grokdeclarator): Don't discard arg types - for prototype even if traditional. - -Sun Nov 25 20:52:31 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * protoize.c: Undef CHAR_BIT, etc, before including limits.h. - - * reload1.c (old_asm_operands_vec, new_asm_operands_vec): - Type should point to a vector. - (Eliminate_regs): For asm_operands, copy the vector properly. - -Sun Nov 25 20:35:12 1990 Richard Kenner (kenner at vlsi1.ultra.nyu) - - * jump.c (jump_optimize): Fix typo in stack push combining code. - - * reload1.c (eliminate_regs): Ensure we share operands 3 and 4 - of ASM_OPERANDS operations if they were originally shared. - Copy all rtx flags when making a new MEM. - (eliminate_regs_in_insn): Initialize for ASM_OPERANDS sharing check. - -Sun Nov 25 16:37:10 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * Makefile.in (stamp-gnulib2): Don't depend on gnulib2-indirect. - - * gcc.c (do_spec_1): Handle %W{...}. - (default_compilers): Use %W{...} when passing -o option. - -Sat Nov 24 16:39:56 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * cplus-lex.c (init_lex, do_pending_inlines, reinit_lang_specific): - Add conditionals for __GNU_LIBRARY__. - -Thu Nov 22 13:48:06 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * fold-const.c (optimize_bit_field_compare): Pass additional - arg to get_inner_reference; it gets set if something was volatile. - (decode_field_reference): New arg PVOLATILEP; passed to - get_inner_reference. - (merge_component_references): Add pointer to place to store if - something is volatile to calls to decode_field_reference; don't - do anything if it gets set (this may be very conservative). - - * stmt.c (expand_end_loop): Skip initial CODE_LABEL at start of - loop when looking for qualified conditional exit. - - * reload.c (push_reload): If (subreg:M1 (reg:M2 ....)) and we - have trouble access the register in M1, reload the reg, not subreg. - Fix typo in testing for memory. - (reload): Force reload of the operand in the above cases. - -Wed Nov 21 17:39:42 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * loop.c (strength_reduce, combine_givs): Don't penalize - non-replaceable givs unless they are user variables; temporaries - are probably dead even though we can't prove it. - - * integrate.c (save_constants): Don't get confused by looking - inside CONST_DOUBLE_MEM. - Call recursively on what get_pool_constant returned, in case it - was itself the address of a pool constant. - (copy_for_inline, copy_rtx_and_substitute, restore_constants): - Remake CONST_DOUBLE so it gets chained in correctly and we don't use - obsolete CONST_DOUBLE_MEM values. Call recusively on operand we are - about to pass to force_const_mem; it might have been a case of a - constant value being an address of another constant. - - * loop.c (find_mem_givs): Don't make a DEST_ADDR giv with mult_val == 1 - and add_val == 0. - (maybe_eliminate_biv_1): Turn off elimination in (compare biv1 biv2) - cases; they have problems. - -Wed Nov 21 16:06:14 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * dwarfout.c (location_attribute): Offset for bitfields is special. - - * expr.c (get_inner_reference): New arg pvolatilep. - (expand_expr, expand_assignment): Use to set MEM_VOLATILE_P. - -Wed Nov 21 10:34:25 1990 Tom Wood (wood at dg-rtp.dg.com) - - * stor-layout.c (layout_decl): Record whether a FIELD_DECL is a - bit-field and if so its original type. - * tree.h (DECL_BIT_FIELD_TYPE): New. - * dbxout.c (dbxout_type): Use DECL_BIT_FIELD_TYPE. - * dwarfout.c (output_member_die, bit_offset_attribute, - bit_size_attribute, member_declared_type): Use DECL_BIT_FIELD_TYPE. - * sdbout.c (sdbout_one_type): Use DECL_BIT_FIELD_TYPE. - - * sdbout.c (DEBUGGER_ARG_OFFSET, DEBUGGER_AUTO_OFFSET): New - interfaces to compute the location of arguments and automatic - variables. - * dbxout.c (DEBUGGER_ARG_OFFSET, DEBUGGER_AUTO_OFFSET): Likewise. - - * dbxout.c (dbxout_parms): Describe a parameter passed in - registers but living on the stack as N_PSYM rather than N_LSYM. - These are typically arg_pointer based locations. - - * out-m88k.c (m88k_debugger_offset): New function. - * tm-m88k.h (DEBUGGER_ARG_OFFSET, DEBUGGER_AUTO_OFFSET): Replaces - SDB_AUTO_NORMALIZE_OFFSET. - * tm-m88k.h (STACK_BOUNDARY): Update to 16 byte aligned stacks. - -Tue Nov 20 23:48:57 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * dwarfout.c (dwarfout_init): Set stack depth to 1 at start. - (output_padded_null_die): New function. - (dwarfout_finalize): Use that to ensure length divisible by 4. - - * ns32k.md (addsi3): Don't use `addr' for very large displacements. - -Tue Nov 20 05:48:42 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * jump.c (can_reverse_comparison_p): It is safe to reverse an EQ - or NE comparison, even if IEEE floating-point. - - * integrate.h (struct inline_remap): const_*_map now maps registers - in calling function, not called function. - Add fields to save values recorded from SETs. - * integrate.c: Now includes insn-config.h and real.h. - (expand_inline_function): New meaning for const_*_map. - Don't fill in constant equivalences here; now done in try_constants. - Show CALL_INSNs potentialy clobber all hard registers since we - now record equivalences for hard registers. - (try_constants): No longer need original RTL; all callers changed. - Call note_stores to kill any known equivalences for registers changed. - Record equivalences for PC, CC0, and registers set by this insn. - (subst_constants): No longer need original RTL; all callers changed. - Reflect new meaning of const_*_map. - Perform more extensive constant folding, basically a subset of - fold_rtx in cse.c; specifically, fold the result of comparison - operations and IF_THEN_ELSE operations. - Record the constant equivalences of SETs, if any. - (try_fold_condition, const_equiv, fold_out_const_cc0): Deleted. - * Makefile.in (integrate.o): Now includes insn-config.h and real.h. - -Sat Nov 17 07:48:45 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * local-alloc.c (local_alloc): Don't allocate a reg that wants a - class that has only one register; let global-alloc do it so that it - can be given a GENERAL_REG if reload needs a spill reg of that class. - - * regclass.c (regclass, reg_class_record): Count savings in loops as - being greater the same way we adjust reg_n_refs for loops in flow.c. - - * expmed.c (store_bit_field, extract_bit_field): Remove change of - Oct 16; it causes problems with long long bit fields. - - * rtlanal.c (reg_overlap_mentioned_p): If called with a constant, - return zero. If called with a MEM, return 1 iff the second arg - contains a MEM. - * reload.c (push_reload): Call reg_overlap_mentioned_p only if OUT - is a MEM and then pass it the address of OUT. - - * cse.c (cse_insn): Refine when SRC_EQV, SRC, and DEST are added - to the hash table. SRC_EQV is not added to the hash table if it - is volatile or equal to DEST and similarly for SRC. DEST is not - added to the hash table unless either SRC_EQV or SRC is. - -Thu Nov 15 23:43:20 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * c-typeck.c (convert_for_assignment): Change warning message. - -Thu Nov 15 18:44:49 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * stmt.c (expand_end_loop): Generalize code to look for more - than one branch to the exit and include unconditional branches - to the exit; move the whole range to the end of the loop. - * jump.c (duplicate_loop_exit_test): New function. - (jump_optimize): Call it. - Don't allocate jump_chain until we have finished deleting dead code. - Leave some more room in jump_chain. - (simplejump_p): Reject if not JUMP_INSN. - (delete_insn): If simplejump_p, remove from jump chain. - * loop.c (loop_skip_over): Deleted. - (scan_loop): No longer call it. - * cse.c (predecide_loop_entry): Deleted. - (cse_basic_block): No longer call it. - -Thu Nov 15 18:00:20 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * math-68881.h (HUGE_VAL): Add extra braces for Sun. - - * stor-layout.c (layout_type): Don't let array have less - alignment than its mode calls for. - -Thu Nov 15 13:05:30 1990 Tom Wood (wood at dg-rtp.dg.com) - - * sdbout.c (sdbout_parms, sdbout_reg_parms): Reimplemented based - on dbxout_parms and dbxout_reg_parms. - -Wed Nov 14 08:48:43 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * emit-rtl.c (emit_...): All of these now return the last insn - emitted; previously some of them returned void. - (emit_barrier_before): New function, similar to others. - * rtl.h: All emit_... functions now return an rtx; reorder so - declarations are in the same order as definitions in emit-rtl.c. - - * reorg.c (steal_delay_list_from_{target,fallthrough}): Add missing - test when checking candidate insn for resource conflicts. - -Wed Nov 14 07:08:19 1990 Tom Wood (wood at dg-rtp.dg.com) - - * c-parse.y (pushlevel, compstmt): Place a line note at the first - token beginning a block and at the close brace ending a block. - These are the conventional locations for SDB and DWARF debugging - information. - -Tue Nov 13 18:16:47 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * function.c (assign_stack_local): If alignment not specified - and not BLKmode, use at least word alignment. - (assign_outer_stack_local): Likewise. - - * sparc.md: Turn off patterns that specify no_ov or CC_NO_OVERFLOW. - - * dwarfout.c (file_attribute): Fix arg to ASM_OUTPUT_DWARF_ATTRIBUTE. - (AT_line, AT_file): New definitions. - - * out-i860.c (output_block_move): Move .Lm%3 down one insn. - - * c-decl.c (grokdeclarator): -funsigned-bit-field doesn't affect enums. - -Tue Nov 13 09:28:27 1990 Tom Wood (wood at dg-rtp.dg.com) - - * gcc.c (default_compilers): Report an error if -C is used without - -E. Pass -H to cpp. - - * sdbout.c (plain_type, plain_type1): save and output the - rightmost array dimensions. - - * syms.h (enum sdb_type): Add T_VOID, equal in value to T_ARG. - * sdbout.c (plain_type_1): Use T_VOID for VOID_TYPE and define it - to be T_INT if not present in <syms.h>. - - * sdbout.c (sdbout_toplevel_data): Use abort rather than fatal. - -Mon Nov 12 08:49:33 1990 Michael Tiemann (tiemann at cygnus.com) - - * expr.c (compare): Fix use of GET_MODE_CLASS so we don't abort if - MODE is VOIDmode. - * optabs.c (init_optab): Call `xmalloc' instead of `malloc'. - - * out-sparc.c (hard_regno_mode_ok): Change initialization of array - to match behavior of Nov 11 change for complex modes. - - * jump.c (delete_labelref_insn): Chase all LOG_LINKS of insn to try - to delete references to LABEL. This is needed for machines like - SPARC which use multiple insns to get the value of LABEL into a - register. - -Mon Nov 12 16:07:27 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * machmode.def (SCmode, ...): Class is MODE_COMPLEX_FLOAT. - -Sun Nov 11 00:27:34 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * tm-i860.h (HARD_REGNO_MODE_OK): Handle values more than 2 regs long. - * tm-m68k.h (HARD_REGNO_MODE_OK): Likewise, for d7/a0 boundary. - * tm-spur.h (HARD_REGNO_MODE_OK): Likewise, for 31/32 boundary. - * tm-*.h (HARD_REGNO_NREGS): Use GET_MODE_NUNITS to handle - complex values in fp registers on machines where one reg holds a DF. - - * sdbout.c (sdbout_one_type): Do nothing for incomplete type. - - * c-decl.c (duplicate_decls): Warning only when redefining built-in fn. - - * c-decl.c (init_decl_processing): Use sizetype, not unsigned long, - in prototypes for memcpy and memcmp. - - * c-parse.y (component_decl): Don't read the semicolon here. - - * toplev.c (compile_file): Reverse top-level decls before output. - -Sat Nov 10 22:27:47 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * stor-layout.c (layout_type): Use MODE_COMPLEX_{INT,FLOAT}. - -Sat Nov 10 20:34:55 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * reload.c: Provide a default definition of REGISTER_MOVE_COST. - -Sat Nov 10 01:43:09 1990 Michael Tiemann (tiemann at cygnus.com) - - * cplus-init.c (emit_base_init): Don't use CLASSTYPE_ASSOC as a list - of only immediate basetypes anymore. Use `get_base_distance' to - check whether a type is an immediate basetype or not. - - * stmt.c (expand_return): Don't emit a USE if VAL is a - pseudo-register. - - * integrate.c (function_cannot_inline_p): Call to strcmp for - "__builtin_va_alist" must use IDENTIFIER_POINTER not - DECL_NAME. - - * genattrtab.c (check_attr_test): Use XSTR macro instead of - XEXP macro in places where strings are used. - - * tree.c (type_hash_lookup): Have to check TYPE_DOMAIN for non-zero - before comparing the equality of the possible lists. - - * cplus-typeck.c (build_c_cast): Check TREE_TYPE before checking - that the TREE_TYPE is an OFFSET_TYPE. - - * cplus-typeck.c (c_expand_return): Use DECL_RESULT of - current_function_decl instead of `result' since `result' might be - set to zero. - - * cplus-decl.c (xref_tag): Fixed typo in setting - TYPE_USES_COMPLEX_INHERITANCE. - - * cplus-tree.c (assoc_value): Changed interface to take COPYING - parameter. - * cplus-{class,init,search,tree}.c All callers changed. - - * cplus-typeck.c (build_c_cast): Resolve OFFSET_REFs if the type we - are converting to is not an OFFSET_TYPE. - -Thu Nov 8 15:26:27 1990 Craig Burley (burley at pogo.ai.mit.edu) - - * tm-*.h: Try to change HARD_REGNO_NREGS, HARD_REGNO_OK, and other - macro defs to handle new complex type stuff. Mostly guesswork; needs - checking by people who really know each machine. - * machmode.def (SCmode, DCmode, XCmode, TCmode): New complex modes. - * machmode.h (GET_MODE_ALIGNMENT): New macro from stor-layout.c. - * tree.c (build_complex_type): New function. - * stor-layout.c (layout_type): Handle COMPLEX_TYPE. - * expr.c (compare1, compare, move_block_to_reg, emit_push_insn): - Change uses of GET_MODE_CLASS. - * optabs.c (expand_binop, expand_twoval_binop, expand_unop): - (emit_cmp_insn): Likewise. - -Thu Nov 8 06:19:57 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * local-alloc.c (no_conflict_p): Initialize *WHERE_DEAD; previously - uninitialized. - -Thu Nov 8 01:08:45 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * c-parse.y (yylex): Size of wide STRING_CST counted terminator wrong. - -Wed Nov 7 14:55:38 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * gnulib2.c (L_trampoline): Put it inside a dummy function. - - * enquire.c: Renamed from hard-params.c; new vers from steven@cwi.nl. - Modified to undef CHAR_BIT, etc. if defined in stdio.h. - * Makefile.in (enquire): Targets renamed. - (enquire.o): Define NO_MEM. - -Wed Nov 7 14:18:34 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * jump.c (invert_jump): If it is going to fail (i.e., redirect_jump - fails), don't invert the jump. - - * expr.c (expand_expr, case COND_EXPR): Don't accept a hard register - as a target if we are going to store into it before testing the - condition because that evaluation may involve a subroutine call - which might clobber it. - - * jump.c (delete_jump): reg_set_p should be called with PATTERN (insn). - (thread_jumps): Add omitted last argument to rtx_equal_for_thread_p. - - * reload.c (find_reloads): Only skip insns which set one hard register - to another if the cost of doing so is low; if not, there may not be - a single insn to do the copy and we may need a reload register. - -Wed Nov 7 00:01:18 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * c-parse.y (component_decl_list): Allow missing semi at end. - - * loop.c (move_movables): When moving and deleting library call, - don't be confused if an insn is deleted. - -Tue Nov 6 20:49:57 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * tm-m68k.h (TRANSFER_TO_TRAMPOLINE): Fix asm syntax. - - * xm-iris.h (alloca): Delete redundant definition. - * tm-iris.h (CPP_SPEC): Define variant symbols starting with _. - Define __EXTENSIONS__. - - * config.gcc (editing .gdbinit): Search current dir, not just srcdir. - -Tue Nov 6 22:24:09 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * expr.c (expand_expr, case COND_EXPR): Generate efficient code for - A ? A : FOO and similar. - - * combine.c (subst): If we have, e.g., (lt CONST FOO), convert it - to (gt FOO CONST). - - * recog.c (comparison_operand): Use comparison_code_p. - - * genconfig.c (walk_insn_part): Add operand to indicate if PART is - going to be used to recognize an insn (as opposed to emitting rtl). - If not, ignore CC0. - (gen_insn, gen_expand, gen_split, gen_peephole): Add new operand to - walk_insn_part calls. - - * cse.c (find_comparison_args): Correctly compute rtx_code of - comparison; if we find another comparison code inside, use it. - * loop.c (get_condition): Likewise. - - * expr.c (expand_builtin): For ffs, don't pass VOIDmode to expand_unop. - -Mon Nov 5 12:55:00 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * final.c (output_addr_const): Don't print parens for CONST. - - * reload1.c (choose_reload_regs): Handle case where find_equiv_reg - returns a SUBREG. Also, use variable `regno' uniformly throughout - code that finds equivalent register. - - * gnulib2.c (__floatdisf, __fixunssfsi): New functions. - (__fixsfdi, __fixunssfdi): New functions. - * gnulib.c (__floatsisf, __fixsfsi): New functions. - -Mon Nov 5 06:37:02 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * fold-const.c (fold, case EQ_EXPR and NE_EXPR): Convert, e.g., - (A & 2) == 2 to (A & 2) != 0. This eliminates the need for these - patterns in MD files. - Detect more general cases of comparing something with itself. - -Mon Nov 5 00:09:55 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * stmt.c (expand_cleanups): Don't run any cleanup twice. - -Sun Nov 4 23:49:22 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * expr.c (convert_move): Use emit_no_conflict_block when converting - SImode to DImode. - If have slt insn, emit a compare insn; we must not have a use of - cc0 without a set; normally, the compare will be deleted as - redundant in final.c. - Use shift rather than clear/test/negate for high-order word when - doing sign extension. - - * optabs.c (emit_no_conflict_block): Don't put REG_NO_CONFLICT - notes on the trailing copy insn; nobody looks there. - - * combine.c (try_combine): Don't combine a reg-reg copy if the - destination is used in a REG_NO_CONFLICT note. - - * reload.c (find_equiv_reg): Use true_regnum to support SUBREGs - as well as REGs. - -Sun Nov 4 12:55:03 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * i386.md (extend*): Take out last change. - Unix assembler rejects movsx... - - * expr.c (expand_expr): Special case for ignored volatile - failed to return. - -Sat Nov 3 14:42:34 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * expr.c (do_jump, case PLUS_EXPR): Turn off this case; it was a - pessimization. - -Fri Nov 2 01:51:31 1990 Michael Tiemann (tiemann at cygnus.com) - - * stmt.c (expand_return): Don't emit a USE if VAL is a - pseudo-register. - -Fri Nov 2 15:30:48 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * gnulib2.c (__builtin_saveregs): Add version for i860. - - * out-i860.c (output_block_move): Rearrange the copy loop. - Now uses two labels and a more complicated lead-in. - -Fri Nov 2 14:17:24 1990 Tom Wood (wood at dg-rtp.dg.com) - - * m88k.md (extendsidi2): New define_expand. - - * out-m88k.c: Converted various constructs to use conventinal - formatting. - - * m88k.md (ext pattern): Must have parens. - * m88k.md (mul/div patterns): Added better documentation. Removed - unfounded restriction on immediate values. - * m88k.md (increment and test peephole): Don't use %L. - - * out-m88k.c (m88k_layout_frame): Must allocate space for the - addressing base register (-mpic). - * out-m88k.c (output_tdesc): Use version 2 tdesc with PIC. - - * tm-m88k.h, tm-m88kdgux.h,: Don't predefine memcpy and others. - * tm-m88k.h: Fixes for dwarf. - * tm-m88ksvr4.h: Dwarf changes. - * xm-m88k.h xm-m88kdgux.h xm-v88r32.h: Update comments. - -Fri Nov 2 12:30:15 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * jump.c (comparison_dominates_p): Return 1 if codes are the same. - (thread_jumps): Use get_label_after. - - * a29k.md (movdi): Handle CONST_INT as well as CONST_DOUBLE. - (comparisons): Fix typo in define_split for floating-point NE. - - * reorg.c (fill_slots_from_thread): Don't mark as annulled if no - delay list. - - * loop.c: Allow use of any register to store comparison results. - (loop_skip_over): Don't treat comparison specially; copy all insns - preceeding the jump. - (check_for_endtest, other_reg_use_p): Deleted. - (can_eliminate_biv_p, eliminate_biv): Deleted; code merged and - placed into new maybe_eliminate_p_1. - (may_eliminate_biv, may_eliminate_biv_1): New functions; recursively - look at all rtx to see if every occurrence of a biv can be - eliminated. - (check_eliminate_biv): Deleted; callers changed to call - may_eliminate_biv. - (get_condition): Rework to look into previous insns to find insns - that set the first operand of comparison insns. - -Thu Nov 1 22:07:42 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * cse.c (fold_rtx, case COMPARE): Only convert compare to test if - HAVE_cc0 is defined. - * combine.c (subst): Copy COMPARE case from fold_rtx. - Simplify things like (ne (eq FOO BAR) (const_int 0)). - -Thu Nov 1 18:06:56 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * math-68881.h (HUGE_VAL): Alternate definition for Suns. - - * config.gcc (sun3, etc.): Assume os4 as default for Sun 3 and Sun 4. - - * tm-i386v.h (STARTFILE_SPEC, LIB_SPEC): Handle -posix. - (CPP_SPEC): New macro. - (LIB_SPEC): Handle -shlib. - - * c-decl.c (init_decl_processing): Make last arg to memcpy and memcmp - an unsigned long, to be like size_t. - - * Makefile.in (hard-params): Depend on gnulib2, not gnulib. - -Wed Oct 31 22:12:33 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * config.gcc (ultrix): New alternative. - - * i386.md (extend*): Change opcode to movsx. Was movs. - -Wed Oct 31 09:41:27 1990 Tom Wood (wood at dg-rtp.dg.com) - - * m88k.md: Deleted an old pattern for subtracting 0. - * m88k.md: Deleted patterns for aligned bit-field insns. - * m88k.md: Changed define_expand to define_insn for mulsi3 and - umulsi3. - * m88k.md: Converted various constructs to use conventional - formatting. - * m88k.md (mak patterns): Fixed transcription errors. - -Wed Oct 31 00:05:54 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * c-decl.c (init_decl_processing): Predefine the ordinary names - of alloca, abs, memcpy, etc. - - * c-decl.c (duplicate_decls): Allow redefining built-in as static, - but optionally warn. - -Tue Oct 30 14:39:17 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * c-decl.c (finish_function): Use DEFAULT_MAIN_RETURN in `main'. - * tm-vms.h (DEFAULT_MAIN_RETURN): Define this. - - * c-parse.y (yylex): Base is not 8 for just `0'. - - * cccp.c (do_define): Invert test of compare_defs. - - * cccp.c (make_definition): Convert newline to newline-newline. - - * Makefile.in (hard-params): Depend on gnulib. - - * m88k.md (divsi3): Delete declarations of gen_... functions. - -Tue Oct 30 14:26:20 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * cse.c: Rework handling of comparisons to generalize better to - machines that use registers to hold condition code information. - (prev_insn_cc0*): Just store last rtx assigned to cc0 in prev_insn_cc0. - (find_comparison_args): New function. - (fold_rtx): Folded value of cc0 is the value previously stored into it. - Rework handling of comparisons: use find_comparison_args to see what - is being compared. If they are constants, compute the result of the - comparison. If not, see if the two operands are equivalent (only for - non FP or non-IEEE FP). Then see if we have already seen a comparison - involving these operands that lets us give a value to this comparison. - True comparisons return STORE_FLAG_VALUE, not 1. - (fold_cc0): Deleted. - (predecide_loop_entry): Call cse_insn on a copy of each insn at the - loop test to propagate the values of items at the start of the loop. - Then use fold_rtx to see if we know the result of the jump. - (record_jump_equiv): Use new function find_comparison_args. - (cse_insn): Just record value of CC0 if set; don't call fold_cc0. - Don't modify PREV_INSN (insn) if INSN is a copy. - (cse_main): Initialize const_true_rtx to rtx for STORE_FLAG_VALUE. - - * jump.c (comparison_code_p, comparison_dominates_p): New functions. - (thread_jumps): Use comparison_dominates_p. - Remove debugging code. - * reorg.c (condition_dominates_p): Use new function - comparison_dominates_p. - - * emit-rtl.c (next_cc0_user): Don't get confused by being call with a - copy of an insn; use INSN_UID to check for an insn in a delay slot. - - * rtl.c (reg_note_name): Add name for new REG_LABEL note. - - * emit-rtl.c (make_insn_raw): No longer have JUMP_LABEL for INSN. - -Tue Oct 30 09:26:15 1990 Tom Wood (wood at dg-rtp.dg.com) - - * Update what strings in files edited so far. - * tm-m88k.h, tm-m88kdgux.h, tm-m88ksv4r.h: Introduce VERSION_STRING - and VERSION_INFO to more appropriately identify the compiler. - - * tm-m88k.h (ASM_OUTPUT_OPCODE): Stop processing the opcode if `%' - is encountered. - * out-m88k.c (print_operand): Add a tab to %L output. Delete - unused cases. - - * m88k.md: Rework the movstrsi pattern and provide call_block_move - and call_block_move_loop to support expand_block_move. - * out-m88k.c: Rework the block move functions. - * make-m88k, make-m88kdgux: Eliminate movstr.h. - - * m88k.md, out-m88k.c: Eliminate assembler comments. - - * m88k.md (ashlsi3 ashrsi3 lshlsi3 lshrsi3): Eliminate warnings - about out of range shifts. - - * tm-m88k.h, out-m88k.c: Rename CONDITION_CODE_REGNUM CC0_REGNUM. - -Mon Oct 29 18:06:54 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * final.c (final_end_function): Handle dwarf output. - (final_scan_insn): Likewise. - (output_source_line): Likewise, using ASM_OUTPUT_DWARF_LINE. - * toplev.c (rest_of_decl_compilation): Likewise. - (rest_of_compilation, main): Likewise. - * varasm.c (assemble_variable): Likewise. - * flags.h (enum debugger): Define DWARF_DEBUG. - - * cccp.c (do_define): Rewrite criterion for warning. - Don't warn if -D redefining symbol with constant numeric value. - - * toplev.c (output_file_directive): New function. - * sdbout.c (sdbout_filename): Deleted. - * tm-3b1.h, tm-att386.h, tm-encore.h, tm-m88k.h, - tm-mot3300.h, tm-tahoe.h, tm-vaxv.h (ASM_FILE_START): Use that. - - * c-decl.c (named_labels): No longer static. - (pushlevel): Clear named_labels. - (poplevel): Don't clear it here. - -Mon Oct 29 13:32:57 1990 Michael Tiemann (tiemann at cygnus.com) - - * Makefile.in: Update dependencies for various files, mostly cplus-* - files. - - * rtl.def: Remove Sep 26 that added JUMP_LABELs to INSN and - CALL_INSN. - * rtl.h: Add REG_LABEL register note. For INSN and CALL_INSN, the - presence of this register note has the same meaning that a non-NULL - JUMP_LABEL would have with the Sep 26 change. - * jump.c (jump_optimize): Revert to clearing JUMP_LABEL field of - JUMP_INSNs only. - (mark_jump_label): If INSN is an INSN or a CALL_INSN, add a - REG_LABEL note if a LABEL appears (and no such note already exists). - ??? Once recorded, this information appears never to be used. - - * jump.c (delete_jump): The deletion of INSN must take place when - INSN is a simple jump. Also, don't try to optimize if we come - across an insn with the reorg-generated pattern (USE (INSN ...)). - - * cplus-lex.c, cplus-dbxout.c: Remove vestigial support for dumping - and undumping the compiler. - - * Merge cplus diffs from Kenner. - * cplus-cvt.c (convert_to_integer): Fold the COND_EXPR we construct. - * cplus-typeck.c (build_conditional_expr): Ditto in three places. - * cplus-lex.c (yylex,do_pending_inlines): Add conditionals for - _IBMR2. This hair will disappear when pcccp support is merged, but - needed for now. - * cplus-tree.h: Conditionalize use of non-int bitfield types on - ONLY_INT_FIELDS. Also, remove duplication declarations of - get_temp_name, get_temp_aggr, and get_temp_regvar; add declaration - of build_decl_list. - -Mon Oct 29 11:45:03 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * fixincludes: Fix missing semi in rusers.h. - -Mon Oct 29 07:07:47 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * flow.c (mark_used_regs): When converting "...*p...; q = p + size" - to "q = p, ...*q..., q = q + size", show that Q is needed after INSN. - - * romp.md (negdi): Directly generate assembly code rather than - converting this into a MINUS. - - * fold-const.c (fold, case COND_EXPR): Add missing condition in test - for (A ? 0 : A). - -Sun Oct 28 15:01:19 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * flow.c (find_basic_blocks): An indirect jump can go - to any label whose address is used as data. - - * m68k.md (zero-extend QI): Use gen_rtx, not change_address. - - * Makefile.in (USER_H): List va-*.h explicitly. - (toplev.o): Depend on RTL_H. - (stamp-*): Depend on move-if-change. - (install-headers): Depend on various header files. - (install-man): Depend on gcc.1. - (gcc.o): Depend on gvarargs.h and obstack.h. - - * Makefile.in: Make sure every `if' has an `else'. - - * c-typeck.c (build_binary_op_nodefault): Prevent warning for - variable shift count. - - * i860.md (movsf): Handle moving from CONST_DOUBLE to reg or mem. - -Sun Oct 28 09:39:14 1990 Michael Tiemann (tiemann at cygnus.com) - - * jump.c (delete_jump): The deletion of INSN must take place when - INSN is a simple jump. Also, don't try to optimize if we come - across an insn with the reorg-generated pattern (USE (INSN ...)). - - * sparc.md, tm-sparc.h, out-sparc.c: Significantly rewritten to take - advantage of new 2.0 optimization capabilities. - * old-sparc.md, tm-old-sparc.h, out-old-sparc.c: These are copies of - the above files before the rewrite. They may be interesting for - measuring performance of old vs. new machine description idioms. - -Sun Oct 28 00:22:40 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * loop.c (scan_loop): Don't think that a branch to an end-test of - a containing look is actually the branch to the end-test of the - outer loop. - - * reload.c (indirect_ok): Deleted. - (find_reloads): Accept new arg IND_LEVELS instead of old IND_OK; - pass this to find_reloads_address and find_reloads_toplev. - (find_reloads_toplev): Accept IND_LEVELS and pass to - find_reloads_address. - (find_reloads_address): Accept IND_LEVELS and pass it on to - find_reloads_address_1. - When calling ourself recursively for a MEM as an address, show - one indirect level has been used. - (find_reloads_address_1): Accept IND_LEVELS and pass it to ourselves - in recursive calls and to find_reloads_address. - * reload1.c (spill_indirect_levels): New var; used to be - spill_indirect_ok. - (reload): Compute number of levels of indirection and set it into - spill_indirect_levels. - (reload, reload_as_needed): Pass spill_indirect_levels not - spill_indirect_ok. - - * reload.c (find_reloads): Make similar change to "V" as "O". - - * reload1.c (eliminate_regs): For binary operations, don't call - recursively on second arg if null (for EXPR_LIST). - (eliminate_regs_in_insn): Perform register elmination in the - REG_NOTES of an insn when we are doing it for the last time. - - * vax.md (call_value_pop): Use correct operand number for number - of bytes popped. - - * tm-romp.h (EXTRA_CONSTRAINT): Ensure we ignore reg_renumber if - register allocation hasn't been done yet. - - * function.c (init_function_start): Initialize reg_renumber to zero; - it is checked in rtx_renumbered_equal_p. - - * loop.c (loop_optimize): Ensure we assign a new LUID to all - special notes, including NOTE_INSN_FUNCTION_BEG (0). - -Sat Oct 27 12:22:46 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * out-a29k.c (print_operand, output_prolog): Don't try to fill delay - slots with parts of epilogue or prologue unless -O -fdelayed-branch. - - * tm-rs6000.h (STRUCTURE_SIZE_BOUNDARY): Should be 8. - - * reorg.c (mark_target_live_regs): Ignore REG_DEAD notes for pseudos; - they must not have gotten hard registers. - -Fri Oct 26 11:30:28 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * gcc.c (main): Set machine_suffix before reading specs file. - - * c-typeck.c (build_binary_op_nodefault): Warn for bad shift counts. - - * stor-layout.c (layout_record): - BITFIELD_NBYTES_LIMITED affects bitfields only. - - * loop.c (note_addr_stored): Don't assume PLUS in address is aggregate. - -Fri Oct 26 00:46:09 1990 Michael Tiemann (tiemann at cygnus.com) - - * cplus-tree.h: Declare `build_type_conversion' once instead of - three times. - - * loop.c (loop_skip_over): Handle machines without cc0. - (labels_in_range_p): Fixed typo where this function returned 0 when - it meant to return 1. - (check_for_endtest): New function. Returns non-zero when - argument is a simple conditional test insn (suitable for being the - endtest of a loop). - (strength_reduce): Use `check_for_endtest' to identify the endtest. - Also fixed some typos in comments. - (can_eliminate_biv): Use `check_for_endtest' here, too. - (get_condition): Generalized to handle machines without cc0. Now - THIS_CC_RTX is the value of the cc rtx. - - * integrate.c (expand_inline_function): Conditionalize away - cc0-specific code with HAVE_cc0. - (try_constants): Add appropriate declaration for ORIG. - (try_fold_condition): Generalized to work for non-cc0 condition - values. - - * cplus-type2.c (digest_init): Add missing declaration of FIELD. - * rtl.h: Add missing declaration of plus_constant_for_output. - * jump.c (can_reverse_comparison): Fixed typo. - (delete_jump): Made to work without cc0_rtx. - -Fri Oct 26 00:01:27 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * reorg.c: Conditionalize references to CC0_RTX on HAVE_cc0. - - * reload.c (find_reloads): For the `o' constraint, if IND_OK is - true, use offsettable_memref_p instead of the nonstrict version. - - * jump.c (delete_jump): If HAVE_cc0 is not defined, it is not safe to - delete previous insn that sets a condition code register, because it - might not be dead. Rework to look at all registers dying in this insn - and delete the first previous insn that sets any such register if that - is all it does. - - * jump.c (jump_optimize): Remove extraneous call to next_active_insn - in optimization of "if (...) x = 1; else ...; if (x) ...". - - * cse.c (predecide_loop_entry): Don't set cc_value to null and then - stick it in the rtl. - - * rtlanal.c (find_next_ref): Deleted from here. - * explow.c: Include hard-reg-set.h for find_next_ref. - (find_next_ref): Moved to here. - * Makefile.in (explow.o): Includes hard-reg-set.h. - -Thu Oct 25 21:37:15 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * va-mips.h (va_list): Put __ in member names. - (va_dcl): Rename _va_alist to __va1_alist. - * va-i860.h (__va_struct): Put __ in member names. - * gvarargs.h, va-*.h: (__va_ellipsis): New macro. - (va_dcl): Use that. - - * c-typeck.c (convert_for_assignment): For functions, reverse the - usual criterion for warning about const vs non-const. Volatile also. - - * m88k.md, tm-m88k.h, out-m88k.c: Rewrites by wood@dg-rtp.dg.com. - * tm-m88kdgux.h, tm-v88r32.h, tm-m88ksvr4.h: New files. - * xm-m88kdgux.h, xm-v88r32.h, xm-m88ksvr4.h: New files. - * make-m88k, make-m88kdgux: New files. - * config.gcc (m88k-dgux, m88k-v88r32, m88k-svr4): New alternatives. - - * gvarargs.h, gstdarg.h: Include alternate file for m88k. - - * expr.c (expand_expr): For ARRAY_REF, preserve const and volatile. - - * expr.c (expand_builtin): Handle strcmp and memcmp with function calls - if can't be open coded. - - * function.c (expand_function_end): Round trampoline addr to init. - (round_trampoline_addr): Fix braino in alignment. - -Thu Oct 25 14:54:18 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * jump.c: Now includes insn-config.h. - (jump_optimize): inequality_comparisons_p takes only one operand again. - (can_reverse_comparison_p): Handle case where a register is used - for the condition code; if we can't easily find the COMPARE that - was used to set the register, say we can't reverse the comparison. - * Makefile.in (jump.o): Now includes insn-config.h. - - * jump.c (jump_optimize): Put back change removed on Oct 21st; - emit_store_flag has now been updated. - - * rtlanal.c (inequality_comparisons_p): Reject any ordered - comparison; we need not just reject when comparing against - cc0_rtx. - * recog.c (next_insn{,s}_test_no_inequality): inequality_comparisons_p - again has only one operand. - * genattrtab.c (cc0_rtx): No longer needed; remove change of Oct 21. - - * genconfig.c (have_cc0_flag): New variable. - (walk_insn_part): Set it when we see CC0. - (main): Write #define HAVE_cc0 when it is set. - * flow.c: Now includes insn-config.h. - * Makefile.in (flow.o): Likewise. - - * combine.c (subst): If X and FROM are the same register number, - but in different modes, force the combine not to be done. - Add missing initialization of undobuf.storage. - -Thu Oct 25 11:34:35 1990 Michael Tiemann (tiemann at cygnus.com) - - * sched.c (new_sometimes_live): Protect this function in case it is - called with (OFFSET,BIT) that evaluates to >= MAX_REGNO. - - * jump.c (sets_cc0_p): Conditionalized to abort if called when - machine does not support cc0. - - * rtlanal.c (reg_set_p): Now non-static. - * rtlanal.c (rtx_varies_p): Handle LO_SUM more accurately. - * rtlanal.c (find_next_ref): New function. Returns the insn that - next references REG after INSN, or 0 if REG is clobbered before next - referenced or it cannot easily find a reference to REG. - - * recog.c (next_insn_tests_no_inequality): Conditionalized on - HAVE_cc0. - - * rtlanal.c (inequality_comparisons_p): Takes new argument - THIS_CC0_RTX which is the rtl for the condition code value we are - concerned about testing. All callers changed. - - * flow.c (propagate_block,mark_used_regs): Conditionalize - specialized cc0 handling only if HAVE_cc0 is defined. - - * genemit.c (gen_exp): In REG case, If CC0_REGNUM is defined, - save space by using REG_CC0_RTX instead of allocating a new - (REG, mode, CC0_REGNUM) rtx if the mode is SImode. - - * final.c (output_addr_const): Handle PC for P.I.C. code generation. - Also, put parens around CONST expressions so that precedence can be - maintained. - * final.c (final_scan_insn): Don't look for redunant compares - except when HAVE_cc0 is defined. - Also, use `find_cc' to locate the rtx functioning as the - condition code register in order to perform appropriate calls - to `alter_cond'. - - * expr.c (expand_expr): Supply missing arg in calls to `store_expr'. - - * expmed.c (emit_store_flag): New argument COMPARISON is the - comparison operation whose result we store. - - * recog.c (offsettable_address_p,adj_offsettable_operand): Use - `plus_constant_for_output' instead of `plus_constant' since we - are testing conditions which rely on being able to add small - offsets to e.g. LO_SUM operands. - * explow.c (plus_constant): No special handling for LO_SUM. It is - not valid to add a constant to a term with LO_SUM, since the - constant may need to be added to the high bits that form the sum, - and those high bits are not readily available. - * explow.c (plus_constant_for_output): Same as `plus_constant' - except that we do allow adding constants to LO_SUM terms. This - function works only in special cases such as for - `adj_offsettable_operand' and `offsettable_address_p'. - - * emit-rtl.c: Declare reg_cc0_rtx which is like cc0_rtx, but - is a register instead of a special form. reg_cc0_rtx should - be used when representing the condition code register on a - machine where condition codes are only set if explicitly set. - For machines which allow arbitrary registers to be used as - condition code registers (such as the MIPS and 88k), normal - pseudo registers should be used instead. - * emit-rtl.c (next_cc0_user,prev_cc0_setter): Conditionalized - on HAVE_cc0. - * emit-rtl.c (find_cc): New function. Given INSN, returns - the rtx of what functions as the condition code register for - INSN. On machines which use cc0_rtx, this is always cc0_rtx. - On machines which have a dedicated register for cc0, this is - that register. On machines which allocate pseudos for holding - condition codes, this is the pseudo found in a REG_CC0 note. - Otherwise, this function returns 0. - * emit-rtl.c (init_emit_once): Allocate `reg_cc0_rtx' if - CC0_REGNUM is defined. - - * cse.c (make_regs_equiv): Don't consider making a reg - equivalent to another reg whose class is NO_REGS. - * cse.c (canon_reg): Don't canonicalize a register to - one whose class is NO_REGS. - * cse.c (fold_rtx): Conditionalize code for handling cc0_rtx - with HAVE_cc0. - * cse.c (predecide_loop_entry): Generalize code to use either - a register or cc0_rtx. - * cse.c (cse_insn): Conditionalize code for handling cc0_rtx - with HAVE_cc0. - - * combine.c (combine_instructions,try_combine,subst): - Conditionalize code handling cc0_rtx with HAVE_cc0. - * combine.c (simplify_set_cc0_and): Abort if HAVE_cc0 is not - defined. - * combine.c (try_distrib): Add break at end of switch cases. It is - dangerous to leave the last cases of a switch statement to fall - through since new cases added after will get fallen into. - - * recog.c (validate_change): Always succeed for an asm insn, - since recog always fails to recognize asm insns. This is - needed for virtual register instantiation in asm insns. - - * cse.c (cse_main): When following jumps, notice whether a - particular basic block causes CSE_JUMPS_ALTERED to become set. When - this happens, repeat the scan. - * cse.c (refers_to_mem_p): Changed parameter name REG to BASE, - which is more accurate. Also, taught it how to cope with - LO_SUM rtl constructs. - -Wed Oct 24 15:36:12 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * calls.c (store_one_arg): Accept additional arg, FNDECL. - Don't save argument area if it is within the REG_PARM_STACK_SPACE - area, but mark the area in use. - (expand_call): If ACCUMULATE_OUTGOING_ARGS and REG_PARM_STACK_SPACE, - treat the stack area for the registers as be clobbered by the called - routine (e.g., if it was compiled without -O) and save and restore - it if it was previously used for arguments in a similar manner to - the remainder of the argument area (done by store_one_arg). - - * calls.c (expand_call): Support new description macro, - STACK_PARMS_IN_REG_PARM_AREA. - * function.c (assign_parms): Likewise. - -Wed Oct 24 12:47:21 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * c-typeck.c (build_array_ref): Use main variant for value type. - - * genoutput.c (output_prologue): Let SEPARATE_AUX_OUTPUT - cause aux-output.c not to be included. - Makefile.in (aux-output2.c): Copy aux-output.c and then compile it. - - * reload.c (subst_reg_equivs): Treat HIGH like other constants. - - * reload.c (push_reload): When testing hard reg for validity, - test subsequent regs only against class, not for HARD_REGNO_MODE_OK. - -Tue Oct 23 22:49:33 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * cccp.c (collect_expansion): Skip ## at start after the error. - - * gcc.c (default_compilers): Handle - as suffix. - (main): Make that a special case; it matches only exactly `-'. - -Tue Oct 23 22:40:33 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * romp.md (store{s,h,q}i pattern): Allow "b" for clobbered pseudo - in addition to "d" in first alternative. - - * reload1.c (eliminate_regs): IF_THEN_ELSE isn't a unary operation. - -Tue Oct 23 20:35:13 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * m68k.md (zero-extend QI): When pushing, store value at 1(sp). - -Mon Oct 22 12:27:08 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * cccp.c (rescan): In the loop that handles numbers, discard \newline. - Also make `..' terminate a preprocessing number. - - * Makefile.in (tmpgnulib, stamp-gnulib2): Do `set -e'. - - * gcc.c (default_compilers): Give __GNUC__ value 2. - Don't define it for .S files. - -Mon Oct 22 07:33:42 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * optabs.c (emit_indirect_jump): New function; now checks predicate - of indirect_jump. - * stmt.c (expand_computed_goto, expand_goto): Use new function instead - of directly emitting indirect jump. - - * flow.c (mark_set_1): Make LOG_LINKS for hard registers. - * combine.c (subst): Make new macro COMBINE_RTX_EQUAL_P which - considers things equal if they are the identical RTX or the same - register with the same mode; use to see if something changed and - if we have a match. - - * cccp.c (S_ISREG): Use argument instead of global. - (main): Correct sense of S_ISREG usage. - (check_precompiled): Use S_ISREG. - - * flow.c (mark_used_regs): Don't allow reg_next_use to point to - a NOTE; either point it to replacement insn or invalidate it. - -Mon Oct 22 00:13:12 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * c-parse.y (xdecls): No warning unless -pedantic. - -Sun Oct 21 17:49:24 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * genattrtab.c (cc0_rtx): Define, referenced in rtlanal.c. - - * jump.c (jump_optimize): Remove code that depends on changes to - emit_store_flag that haven't been made yet. - - * expmed.c (extract_bit_field): Correctly check for bitfield - completely filling a mode. - - * out-romp.c (output_epilogue): Correctly write number of words of - arguments into trace table. - - * calls.c (store_one_arg): Fix error in change of Oct 19th. - - * reorg.c (mark_target_live_regs): Revert back to old behavior - of scanning all insns, even those in delay slots. - (fill_simple_delay_slots): Need only call update_block if we move - an insn across a label. - - * Makefile.in (LIBFUNCS): Use consistent naming convention for - comparison routines; gnulib.c was always correct. - - * function.c (assign_parms): Don't overwrite DECL_INCOMING_RTL when - we are called for the second time. - - * integrate.c (initialize_for_inline): Don't make a new return label - here; the maximum label number has already been computed. - (save_for_inline_copying, save_for_inline_no_copy): Do it here instead. - - * reload.c (find_reloads_address): For indirect address where the - underlying address is also invalid, ensure that we substitute into - the MEM that we will use. - -Sun Oct 21 14:12:47 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * reload.c (find_equiv_regs): Reject reg that overlaps goal. - - * expmed.c (extract_bit_field): For big fields, make sure - value really goes in the target. - - * expr.c (expand_builtin): Delete __builtin_varargs. - (EXPAND_BUILTIN_SAVEREGS): New macro says how to do __builtin_saveregs. - - * calls.c (expand_call): No "can't inline" warning if -fno-inline. - - * stddef.h: Add missing #endif. - -Sat Oct 20 14:33:14 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * function.c (round_trampoline_addr): New function. - (trampoline_address): Use that. - -Fri Oct 19 15:13:31 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * calls.c (store_one_arg): Don't mark stack area used until after - we have written into it; if we do it before, the restore might - clobber a function result being put into that stack area. - - * objc-actions.c (print_lang_statistics): Add empty function. - - * recog.c (inequality_comparisons_p): Deleted from here. - * rtlanal.c (inequality_comparisons_p): Moved to here; not static. - - * a29k.md (extendhisi2): Fix typo in define_split. - - * Makefile.in (integrate.o): Includes integrate.h. - (reorg.o): Includes insn-flags.h. - -Fri Oct 19 14:49:26 1990 Michael Tiemann (tiemann at cygnus.com) - - * sdbout.c (sdbout_symbol): If a variable belongs to an inline - function, the decl's rtl may not be rewritten by alter_reg. So if - we have a variable allocated to a pseudo, just get the hard register - number from `reg_renumber'. ?? But I thought that COFF was so - losing that it was decided one could not represent debug info for - inline functions in COFF. - -Fri Oct 19 13:21:25 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * fold-const.c (split_tree): Use NEGATE_EXPR to negate *conp. - -Fri Oct 19 00:15:21 1990 Michael Tiemann (tiemann at cygnus.com) - - * version.c: Bumped to 1.90.03. - - * tree.c: Added facility for gathering statistics on the number of - tree nodes allocated and the size in bytes they occupy. The - statistics are by tree_node_kind, which is almost like using the - tree code letter, but has more resolution for dealing with different - kinds of `x' nodes. The facility is enabled by compiling the - compiler with -DGATHER_STATISTICS and using the -fstats flag. - - * expr.c (do_tablejump): Emit a BARRIER after the jump that performs - the tablejump. - - * cplus-typeck.c (c_expand_return): Rewritten so that the function - value return register is not used except as a target of the function - return value. - - * cplus-tree.c (build_cplus_new): New argument WITH_CLEANUP_P - controls whether this functino should build its result with a - cleanup or not. All callers changed. - - * cplus-lex.c: File updated to latest changes to c-parse.y's lexical - analyzer. - - * cplus-except.c (cplus_expand_raise): New parameter FOR_RERAISE - is used to control whether to output extra gotos or not. When - nonzero, the compiler can avoid writing out the extra gotos that are - otherwise needed to avoid warning messages. - - * cplus-decl2.c (flag_short_double): Add support for this option. - - * cplus-decl.c (finish_function): Always cause returns to jump to - the return label. This allows -Wreturn to give meaningful error - messages. - - * jump.c (invert_exp): Make this non-static. - (jump_optimize): Reorganization and simplification of main inner - loop. Comments added explaining what the optimizers are looking - for. New optimization added that optimizes for consecutive testing - of an inequality test followed by an equality test (or vice-versa). - Changes made to accommodate reorg.c on Sparc. Code for - cross-jumping return statements was previously dead in this - function; as a result of the reorganization, it is now live. - (find_cross_jump): Added temporary variable PREV1 to hold return - value of `prev_nonnote_insn' instead of calling the function 3 times - in a row. Also changed so that USE or CLOBBERS are not cross-jumped - unless some real insns are also cross-jumped. This helps reorg. - (redirect_jump): Fixed a return that returned no value so that it - returns 1. - (rtx_renumbered_equal_p): Test that reg_renumber is nonzero before - using it. We may want to call this function earlier than by the - time that array has been initialized. - - * integrate.c (save_for_inline_{copying,nocopy}): New functions to - replace `save_for_inline'. save_for_inline_copying saves the rtl - for inline functions by copying the rtl to the - maybepermanent_obstack. It is called when the rtl of the current - function is going to be compiled immediately. - save_for_inline_nocopy takes advantage of the fact that inline - function rtl is already allocated to the maybepermanent_obstack, and - need therefore not be copied if it's not going to be modified by the - compiler (such as by `rest_of_compilation'). - ({initialize_for,finish}_inline): New helper routines for - save_for_inline_... functions. - (note_modified_parmregs): Function called by `mark_stores' to note - whether parameters are assigned to in the body of an inline - function. - New interface, integrate.h, provides declarations for functions used - by other routines that might want to copy chunks of rtl. - ({save,try}_constants): Now global (for integrate.h). - (mark_stores): Ditto. - (try_fold_condition): Ditto. - - * dbxout.c (dbxout_symbol): If a variable belongs to an inline - function, the decl's rtl may not be rewritten by alter_reg. So if - we have a variable allocated to a pseudo, just get the hard register - number from `reg_renumber'. - - * varasm.c (output_const_pool): No longer static. - (assemble_variable): Do output debugging information for global - register variables. GDB does the right thing for global register - variables. - - * toplev.c: New flag `warn_inline' for warning when a function - declared inline was not in fact inlined. Also, new flag - `flag_no_inline' which disables function inlining, but retains - other properties of inline functions (such as lazy compilation - and write-only-if-needed). - * toplev.c (compile_file): Changed logic for inline function - handling to work with `warn_inline' and `flag_no_inline'. - Also modified to call `save_for_inline_nocopy' when insns are to be - saved but not immediately compiled. - - * function.c (instantiate_decls): If instantiating a function - which was saved for inline expansion, preserve the rtl created - by the instantiation as well. - - * flags.h (flag_no_inline): New flag; if nonzero, then no - calls are inlined, regardless of their declaration. We still - save the insns for these functions in DECL_SAVED_INSNS so that - the functions need not be written if they are never called. - - * calls.c (expand_call): If `flag_no_inline' is set, don't - inline the call, regardless of whether it was declared inline - or not. - -Thu Oct 18 13:10:26 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * rtl.def (CODE_LABEL): Add new string field. - * rtl.h (LABEL_NAME): Define macro for access. - * emit-rtl.c (gen_label_rtx): Initialize it to 0. - * stmt.c (expand_label): Store proper name of label. - * final.c (final_scan_insn): Call sdbout_label. - - * tree.h (built_in_function): Add BUILT_IN_VARARGS. - * c-decl.c (init_decl_processing): Declare __builtin_varargs. - * expr.c (expand_builtin): Generate code for it. - Uses new macro EXPAND_BUILTIN_VARARGS. - - * sdbout.c (SDB_IS_FAKE): Macro deleted. - (MAKE_LINE_SAFE): New macro. - (sdbout_begin_block, sdbout_end_block, sdbout_end_function): Use it. - (sdbout_one_type): Delete spurious second arg in all callers. - (sdbout_types, sdbout_end_function): - Use sdbout_dequeue_anonymous_types. - (sdbout_label): New function. - - * expr.h (FUNCTION_ARG_BOUNDARY): Default is now PARM_BOUNDARY. - - * gvarargs.h, va-*.h (va_dcl): - Add ellipsis so current_function_varargs is set. - - * jump.c (jump_optimize): Exit push-optimize loop at end of insns. - -Thu Oct 18 07:09:06 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * reorg.c: Major reorganization. Many special cases have been moved - into more general code and an overall restructuring has been done. - Numerous bugs have been fixed. Highlights: - (dbr_schedule): First make list of all insns needing filling. Then - iterate for two passes. In each pass, try two methods of filling - delay slots, then do some canonicalizations, which may create more - insns to fill. - (fill_simple_delay_slots): Now uses list of insns that need filling, - rather than making such a list. - Enhance code that finds insns when code paths merge to allow multiple - uses of the label as long as all uses are in the skipped code. - (struct resource): Notice volatile memrefs. - (stop_search_p): Allow option to continue when label is reached. - (find_end_label, make_return_insns): New functions; when we have a - filled branch that is really a RETURN, first convert it to a jump - to a return label and then later see if the insns in the delay slots - are also valid for a RETURN. - (mostly_true_jump): Test for branch to loop beginning rather than - branch at end of loop. Also, conditional return insns predict false. - (own_thread_p): New function to replace fall_through_to_p. - (try_merge_delay_insns): Only support merging insns already in an - insns delay list. - (get_branch_condition, condition_dominates_p): New functions. - (steal_delay_list_from_{target,fallthrough}): New functions to - replace steal_delay_list. - (redundant_insn_p): New function. - (update_block, mark_target_live_regs, dbr_schedule): When moving - an insn not at the front of the basic block to a delay slot, - leave a "ghost" USE so that we can track things livened and killed. - (fill_slots_from_thread): Eliminate use of static vars for number - of slots to fill and already filled. - Try to modify an insn that follows a register-register copy to use - the original register; this may create a delay-slot opportunity. - (try_hoist_target{,_1}): Deleted. - (relax_delay_slots): Rewritten to just perform canonicalizations - previously done elsewhere. No actual delay slot filling is done - here. Any new delay slots created will hopefully be filled in the - next pass around the loop in dbr_schedule. - - * expr.c (emit_push_insn): Don't try to compute a SUBREG of a - hard register in a non-integer mode when pushing a "partial" arg. - - * recog.c (validate_change, apply_change_group): After reload, ensure - that operands meet the constraints by calling constrain_operands. - (validate_replace_rtx_1): Consider two rtx equal if they refer to - the same register. - - * jump.c (jump_optimize): Extend change of Oct 16th to handle - the other usage of find_equiv_reg; remove invalid death notes there. - - * rs6000.md, tm-rs6000.h, out-rs6000.c, xm-rs6000.h, make-rs6000: - New files. - - * out-a29k.c (extract_subword): Use gen_{high,low}part from - an FP CONST_DOUBLE if host and target float formats are the same - or REAL_IS_NOT_DOUBLE. - - * out-romp.c (output_fpop, output_fpops): Provide fr0 as a scratch - register unless it is used in the insn. - - * romp.md: In combined set CC0 and move, optimize case where move - is nop. - (DF moves): Fix typo in generation of `get' insn. - Don't split if input is CONST_DOUBLE because we can't easily - generate the proper constants. - (call patterns): Copy data area address via a pseudo to allow - better CSE'ing. - - * tm-romp.h (RTX_COSTS): Memory is expensive, except for a reference - to our own data area, which is very cheap. - (ADDRESS_COST): References to the constant pool are as cheap as - register + offset, since that's what it will be. - - * emit-rtl.c (gen_{low,high}part): Can often extract word from FP - CONST_DOUBLE when host and target floating formats agree. - (add_insn_after): No longer static. - - * reload1.c (reg_equiv_memory_loc): Renamed from reg_equiv_stack_slot - and now static. - (reload): If have equivalence with constant that is not a legitimate - constant operand, force it into memory and handle this as an - equivalence to memory. - * reload.h (reg_equiv_stack_loc): Deleted. - -Wed Oct 17 20:50:58 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * gcc.c, cccp.c (main): Use TARGET_VERSION if -v. - - * expmed.c (extract_bit_field): Typo in last change. - - * Makefile.in (tmpgnulib): Support assembler files named *.asm. - - * gcc.c (do_spec_1): Null-terminate error message. - - * sdbout.c (sdbout_symbol): Handle subreg as DECL_RTL. - This happens for vars from the parms of inline functions. - * dbxout.c (dbxout_symbol): Likewise. - - * genattr.c (fancy_abort): New function, as in gen*.c. - -Wed Oct 17 14:53:48 1990 Michael I. Bushnell (mib at geech.ai.mit.edu) - - * pcp.h: New file. - - * cccp.c: Support use of precompiled files - Include "pcp.h". - (no_precomp, stringlist, stringlist_tailp): New variables. - (union hashval): New field `keydef'. - (enum nodetype): New alternative `T_PCSTRING'. - (main): Support -noprecomp. - Use write_output to write output. - (rescan): Call pcstring_used for T_PCSTRING symbols. - (do_include): New local variables pcftry, pcfname, pcf, pcfbuf, - pcfbuflimit, and pcfnum. - Check for possible use of precompiled files. - (check_precompiled): New function. - (check_preconditions): New function. - (pcfinclude): New function. - (pcstring_used): New function. - (write_output): New function. - (create_definition): New function. - (do_define): Moved most of the work into create_definition. - (dump_single_macro): New function. - (dump_all_macros): Moved most of the work into dump_single_macro. - (dump_defn_1): New argument OF. - (dump_arg_n): New argument OF. - - * cccp.c: Support generation of precompiled files - (pcp_outfile, pcp_inside_if): New variables. - (struct definition): New field `predefined'. - (main): Support -pcp. - (rescan): Don't expand macros outside #if during -pcp. - (special_symbol): Error for most special symbols during #if in -pcp. - Output precondition for T_CONST and T_SPEC_DEFINED symbols. - (eval_if_expression): Set and clear pcp_inside_if. - (do_ifxdef): Output preconditions. - -Tue Oct 16 13:22:05 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * stor-layout.c (layout_record): For PCC_BITFIELD_TYPE_MATTERS, - make it true that zero-length field affects alignment of next field. - - * rtlanal.c (get_integer_term, get_related_value): Moved from cse.c. - - * jump.c (jump_optimize): When reusing value via find_equiv_reg, - delete obsolete death note. - - * expmed.c (extract_bit_field, store_bit_field): - Handle fields wider than a word. - Restrict special case for word-sized field to aligned words. - - * expmed.c (extract_bit_field, store_bit_field): Don't let - BESTMODE be bigger than the insn can handle. - - * Makefile.in (tmpgnulib): Fix typos handling LIBFUNCS_EXTRA. - - * cccp.c (handle_directive): Turn on code to handle # LINENUM, - and move initializations past the label `old_linenum'. - - * c-decl.c (grokdeclarator): If traditional, make bitfields unsigned. - (finish_struct): Don't do that here. - - * fixincludes (CTRL): Don't put quotes around a quote. - - * stddef.h (size_t): Also inhibit if _SIZE_T_. - -Mon Oct 15 13:15:30 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * c-decl.c (grokdeclarator): Make flag_signed_bitfields work - for int and for typedefs. - -Sun Oct 14 21:28:32 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * flow.c (life_analysis): No hard regs for any pseudos live at setjmp. - - * c-decl.c (duplicate_decls): Don't suppress warning for fn defn - after implicit declaration, if fn has already been defined. - -Fri Oct 12 15:54:11 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * c-parse.y (xdecls): Allow ellipsis after parm decls. - Call c_mark_varargs. - * c-decl.c (start_function): Clear c_function_varargs. - (c_mark_varargs): New function. Set it. - (store_parm_decls): Maybe call mark_varargs. - * function.c (init_function_start): Clear current_function_varargs. - (mark_varargs): New function. Set it. - -Thu Oct 11 13:15:36 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * genattrtab.c (fancy_abort): New function, as in gen*.c. - - * expr.c (saveregs_value): New variable. - (init_expr, save_expr_status, restore_expr_status): - Init, save, restore the variable. - (expand_builtin): Don't call __builtin_saveregs twice in one function. - - * va-*.h: Rename all structure fields to start with __. - * va-pyr.h: Rename variables also. - (va_start): Delete the unmatched {. - (va_end): Now a nop. - -Wed Oct 10 22:03:20 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * va-sparc.h (__va_ctl): Rename fields to start with __. - -Tue Oct 9 12:55:48 1990 Michael Meissner (meissner at osf.org) - - * Allow configuration to specify size of a wide character. - (WCHAR_TYPE_SIZE): New parameter. - (WCHAR_UNSIGNED): New parameter, says whether type is signed. - - * c-decl.c (WCHAR_TYPE_SIZE): Define if not defined. - (WCHAR_UNSIGNED): Likewise. - (wchar_type_node, signed_wchar_type_node, unsigned_wchar_type_node): - (wchar_array_type_node): New variables. - (init_decl_processing): Init them. - * c-tree.h: Make them extern. - - * c-common.c (WCHAR_TYPE_SIZE, WCHAR_BYTES): Define them. - (combine_strings): Handle them. - * c-parse.y (init_lex, yylex): Likewise. - - * c-typeck.h (digest_init): Use wchar_type_node and - signed_wchar_type_node to get the base type of wide strings, rather - than using int and unsigned. - -Tue Oct 9 14:16:37 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * expmed.c (extract_bit_field): Typo; section for extv used extzv. - - * c-typeck.c (digest_init): Error if union has no name field. - (process_init_constructor): For union, use first named field. - - * flow.c (propagate_block): Include NOTE at end of block in scan. - - * fixincludes: Fix missing semicolon in rstat.h. - - * cccp.c (main): Record the option names used for assertions. - Call make_assertion properly. - -Tue Oct 9 06:18:38 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * cse.c (fold_rtx): Call find_best_addr before seeing if we know - what is located at that address. - Don't try to return the contents of an ADDR_DIFF_VEC table; we have - no simple way of representing it. - (cse_insn): Detect SRC == DEST even when DEST is not the canonicalized - form of the value represented by SRC. - - * loop.c (scan_loop): Don't set THRESHOLD until LOOP_HAS_CALL - has been set. - (struct induction): Add field MEM_MODE. - (find_mem_givs, combine_givs_p): Record mode used to access memory - when making DEST_ADDR giv and use it to test validity of - derived address. - - * jump.c (delete_jump): No longer static. - (invert_jump): Allow changing RETURNs to branches and vice versa. - Now returns success/failure indication like redirect_jump. - * rtl.h (delete_jump): Define. - - * calls.c (store_one_arg): Don't expand a `partial' arg into - arg->stack and don't set arg->value to arg->stack_slot for - such args. - Clean up by breaking out common code. - -Mon Oct 8 15:09:31 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * loop.c (can_eliminate_biv_p): Insist that mult_val be positive. - - * Makefile.in (insn-*): Remove semicolon from these rules. - (INSTALL_PROGRAM, INSTALL_FILE): New variables. - (install-*): Use those variables. - (mandir): Default based on manext. - -Mon Oct 8 10:57:14 1990 Michael Tiemann (tiemann at cygnus.com) - - * stmt.c (expand_catch_default): Return 1 if EXCEPT_STACK is - nonzero. - - * c-decl.c (finish_enum): Argument to floor_log2 in - calculation of negprecision was not negated. - -Mon Oct 8 06:50:15 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * rtl.h (INSN_ANNULLED_BRANCH_P, INSN_FROM_TARGET_P): New fields. - -Sun Oct 7 23:33:24 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * tm-i386v.h (STARTFILE_SPEC): Handle -p here. - (LIB_SPEC): Not here. - -Thu Oct 4 05:06:02 1990 Michael Tiemann (tiemann at cygnus.com) - - * gcc.c (default_compilers): Define __OPTIMIZE__ for %{O*}, not just - %{O}. This permits the use of -O2, -O3, etc., with predictable - results. - - * expr.c (expand_expr): Do not build new cleanups for - TARGET_EXPRs. Their cleanups are now handled entirely by the - language-specific code that causes them to be generated. - - * function.c ({push,pop}_temp_slots): Do not change - temp_slot_level if within a sequence. GNU C++ must be able to - emit a sequence it is building anywhere at the level the sequence - was initiated. If the level is changed when building a sequence, - temporaries could be unwittingly shared. - - * cplus-tree.def: change print strings for NEW_EXPR and - CPLUS_CATCH_DECL. - - * cplus-dem.c (do_type): Support `long long' types. - - * cplus-decl.c (finish_file): No longer try to emit _init,_fini - records for GNU C++. This was supposed to help the SunOS dynamic - linker link C++ code, but it turned out not to work. - - * cplus-decl.c ({start,finish}_function): Don't emit an extra - binding contour if not in a constructor or destructor. It is not - needed, and saves writing out unneeded debugging info. - - * cplus-class.c (build_method_call): Conditionalize handling of - wrappers and operator->(); these are now only compiled if ESKIT is - #defined. - - * cplus-decl.c (define_label): Updated to treat labels in the same - new fashion that c-decl.c treats them. - - * cplus-*.c: C++ front-end files now support a generic - class-browser interface. It is up to some adventurous hacker to - implement the class browser. - - * cplus-*.c: C++ front-end files no longer #include rtl.h. - -Sun Sep 30 15:53:02 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * cccp.c (make_assertion): New function. - (main): Handle -A by calling make_assertion. - -A- gets rid of predefined macros and those specified earlier. - - * print-tree.c (print_node_brief): Declare i for printing REAL_CST. - - * recog.c (immediate_operand, nonmemory_operand): Don't accept - integer constants if caller wants a floating mode. - -Sat Sep 29 18:40:08 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * reload1.c (emit_reload_insns): Handle preserving death info - with find_equiv_reg. - - * reload.c (find_equiv_reg): Handle INSN_CLOBBERS_REGNO_P. - - * fixincludes: For link pointing outside /usr/include, - use $x rather than $dest. - - * optabs.c (expand_float, expand_fix): Use dconst1, not 1.0. - -Sat Sep 29 06:38:38 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * emit-rtl.c (try_split): Use emit_insn_after and delete_insn to - ensure that the correct insn chain is maintained in the presence of - SEQUENCEs; be careful if the insn being split has a following BARRIER. - * jump.c (delete_insn): Correctly update insn chain when deleting - insn following or preceeding a SEQUENCE. - -Fri Sep 28 16:07:42 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * c-parse.y (yylex): Use REAL_VALUE_TRUNCATE for `f' suffix. - - * fold-const.c (const_binop): Don't initialize REAL_VALUE_TYPE decls. - -Thu Sep 27 14:06:37 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * expr.c (expand_expr): Set MEM_VOLATILE_P from TREE_THIS_VOLATILE. - -Wed Sep 26 00:21:23 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * tm-mips-news.h: New file. - - * out-i860.c (output_size_for_block_move): Don't decrement. - (output_block_move): Decrement initial storing address instead. - - * c-parse.y (yylex): Always try unsigned int if `u' is written. - - * c-typeck.c (build_unary_op): Don't let &* make an lvalue. - - * c-parse.y (initlist): Use [N] rather than case N: for array index. - - * tm-seq386.h (LINK_SPEC): Define it. - - * c-parse.y (yylex): Don't try signed int for nondecimal constant - if -traditional. Improve messages for -Wtraditional. - - * stor-layout.c (layout_record): Avoid using DECL_SIZE_UNIT. - - * jump.c (jump_optimize): Scan all insns for label refs. - (mark_jump_label): Quickly ignore uninteresting rtl types. - * rtl.def (INSN, CALL_INSN): Add a slot for JUMP_LABEL. - - * jump.c (jump_optimize): Try combining stack adjusts with pushes. - -Mon Sep 24 07:31:40 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * stmt.c (expand_computed_goto): Emit barrier after jump. - - * expr.c (case LABEL_DECL): Return a MEM, so we can take its - address; correctly form LABEL_REF. - -Sun Sep 23 22:54:38 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * loop.c (struct movable): Delete field SET_EQUAL; new field MOVE_INSN. - (scan_loop): Only use REG_EQUAL note under very restricted - cirsumstances. Set MOVE_INSN field in movables when appropriate. - (combine_movables): Simplify matching test now that we only have one - source field. - (move_movables): Handle MOVE_INSN movables by emitting a new move - insn in front of the loop. - Correct typo in checking for CALL_INSN. - Don't try to make a REG_EQUAL note. - (count_loop_regs_set): Remove extraneous assignment to MAY_NOT_MOVE. - -Sun Sep 23 14:59:21 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * cccp.c (S_ISREG): Define it unless overridden. - (main, finclude): Use that. - - * reload1.c (reload): If insn after a function call uses the - function value, and that reg is spilled, and the insn might - use it for reloading, add an extra need. - (reload_as_need): Detect such insns for new arg to choose_reload_regs. - (choose_reload_regs): In that case, don't choose function value reg. - - * tm-convex1.h, tm-convex2.h (CPP_SPEC): Define __NO_INLINE_MATH. - -Sun Sep 23 07:52:32 1990 Michael Tiemann (tiemann at cygnus.com) - - * version.c (version_string): Bumped to 1.90.02. - - * final.c (leaf_function): Variable now non-static. - * final.c (only_leaf_regs_used): Function now non-static. - * final.c (leaf_function_p): Move initialization of - `leaf_function' from here... - * toplev.c (compile_file): ...to here. We want to know the - value of `leaf_function' when we perform code reorginization. - * final.c (leaf_function_p): If profiling arcs, we cannot have - a leaf function. Also, we have to look at insns in - `epilogue_delay_list' to know that all our constraints are - satisfied. - * final.c (only_leaf_regs_used): Have to look in - `epilogue_delay_list' to know that all our constraints are - satisfied. - - * toplev.c (warning_with_file_and_line,warning): Declare third - argument V3 for warnings that require 3 `%' expressions in S. - * toplev.c (strip_off_ending): New helper function that removes - a GCC-recognized filename extension. Call this function in - GCC instead of expanding it inline in C code everywhere. - - * sched.c (schedule_block): The last basic block does not have - no live registers. Also, check that we don't copy from an - entry in `basic_block_live_at_start' that does not exist. - * sched.c (update_reg_first_use): When splitting insns, the - insn that is in REG_FIRST_USE might become a NOTE, and a new - insn become the insn that should be considered the first use. - `update_first_use' keeps REG_FIRST_USE up to date. - * sched.c (update_links): Call note_stores with - `update_first_use' when an insn splits. - -Sun Sep 23 00:05:49 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * c-decl.c (grokdeclarator): Put var array bound in save_expr. - -Sat Sep 22 14:01:00 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * tree.c (build_index_type): Don't hash variable-bound type. - - * c-decl.c (start_decl): Error here if var-size object initialized. - (grokdeclarator, finish_struct): Record types & decls - with array sizes not written as constants. - * c-tree.h (C_TYPE_VARIABLE_SIZE, C_DECL_VARIABLE_SIZE): New macros. - - * tm-aix386.h (LIB_SPEC): Different library name for -p. Always -lc. - (LINK_SPEC): Don't pass -lg or -g. - (CPP_PREDEFINES): Define _I386 and _AIX. Don't define unix. - (SDB_DEBUGGING_INFO): Define it. - (DBX_DEBUGGING_INFO): Undefine it. - (ASM_FILE_START): Output .noopt if not optimizing. - (PCC_BITFIELD_TYPE_MATTERS): Define it. - (FUNCTION_PROFILER): Add definition. - -Fri Sep 21 16:26:51 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * function.c (current_function_epilogue_list): Define this here. - * reorg.c: Not here. - -Fri Sep 21 13:11:11 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * varasm.c (assemble_external_libcall): Frob SYMBOL_REF_USED here. - -Thu Sep 20 15:29:44 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * expr.h (struct optab): Field libfunc, an rtx, replaces lib_call. - * rtl.h (SYMBOL_REF_USED): New macro. - * optabs.c (init_optabs): Initialize that field properly. - Also initialize new variables *_libfunc. - (various functions): Use those vars; use libfunc field. - * expr.c (convert_move, emit_block_move, clear_storage): Use the vars. - (emit_push_insn, expand_assignment): Likewise. - -Thu Sep 20 13:51:18 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * out-a29k.c (current_function_epilogue_delay_slot): Renamed from - epilogue_delay_slot. - - * romp.md (movdi): Fix missing short/long qualifier on memory ref. - (SFmode/DFmode move patterns): Add explicit alternatives for - storing and loading general registers from memory; also add - DEFINE_SPLITs for these cases for DFmode. - (negsf2,negdf2): Don't use XOR if an operand is a hard FP register. - - * tm-romp.h (FIXED_REGISTERS, CALL_USED_REGISTERS): Use correct - register numbers for FP registers. - - * output.h (current_function_epilogue_delay_list): New var. - * function.c: Include output.h and initialize new var above. - * Makefile.in (function.o): Now includes output.h. - * reorg.c (epilogue_delay_list): Renamed to - current_function_epilogue_delay_list. - - * final.c (final_scan_insn): Don't delete no-op insn if in delay slot - or if we have already pre-scanned. - - * genconfig.c (max_insns_per_split): Rename from - max_insns_per_split_flag and default to 1 instead of 0. - - * genattrtab.c (n_comma_elts): Return zero for null string. - - * sdbout.c (MIN,MAX): Add to here; required by recent changes. - - * expr.c (safe_from_p): A MEM rtx is not safe from an INDIRECT_REF. - - * c-parse.y (ridpointers): Move definition in front of first use. - - * reorg.c (mark_referenced_resources): Allow for CODE_LABELs between a - CALL_INSN and USE insns preceeding it. - (mark_set_resources): Likewise, for following CLOBBERs. - -Wed Sep 19 17:45:49 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * assert.h (printf): Don't define; should be in stdio.h. - - * rtl.h (PUT_REG_NOTE_KIND): New macro. - * sched.c (attach_deaths): Use it. - - * reorg.c (mark_referenced_resources): If we put insns to load - parameters into the delay slot of a CALL, ignore the USE insns - for those parameters. - - * function.c (fixup_var_refs_1): Don't call fixup_memory_subreg unless - its would-be operand is a SUBREG. - -Wed Sep 19 00:26:59 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * print-tree.c (print_node): Indent before printing RTL. - - * Makefile.in (protoize.o, unprotoize.o): Look for SYSCALLS.c.X - in libsubdir. - -Tue Sep 18 21:55:01 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * cse.c (fold_rtx): For MEM with constant address, split the - address into possible base and offset; ensure constant pool - value is same mode as our reference unless we are getting a - word of a DImode CONST_INT. - Treat SYMBOL_REF and LABEL_REF as constants. - If we are getting a word at a constant offset from a jump table, - replace with the contents of that jump table entry. - (cse_insn): When folding jump to variable location (e.g., tablejump), - LABEL_REF is the cheapest of all, since the branch would be simple. - Special-case changing variable branch to normal unconditional - because the RTL may be different (e.g., the variable branch may - include a USE). - -Tue Sep 18 18:33:19 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * toplev.c (count_error): Handle warnings_are_errors. - (W_options): Handle -Werror. - -Mon Sep 17 00:02:12 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * c-decl.c (lookup_label): Use void as type of label. - * stmt.c (label_rtx): No longer static. - * expr.c (expand_expr): Handle LABEL_DECL. - -Sun Sep 16 16:27:29 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * expr.c (expand_builtin): Error for __builtin_nextarg - if function definition doesn't have `...'. - - * expmed.c (store_bit_field): Adjust BITPOS to UNIT all at once. - for insv, use mode of operand 3 instead of SImode. Define MAXMODE. - Adjust XBITPOS along with mode of XOP0. - (extract_bit_field): Adjust XBITPOS along with mode of XOP0. - for extv and extzv, use mode of operand 3 thoroughly instead of SImode. - - * sdbout.c (CHAR_TYPE_SIZE,...): Default definitions of these macros. - (plain_type_1): Use those macros to distinguish int and floating types. - - * toplev.c (rest_of_decl_compilation): Output TYPE_DECL here for sdb - only if top_level. - - * c-parse.y (unary): Don't forget to look up the label. - - * c-typeck.c (build_conditional_expr): Don't skip arg promotion. - -Sun Sep 16 14:54:03 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * combine.c (try_combine): If we don't recognize the combined insn, - try it without any CLOBBERs. - - * final.c (final_scan_insn): Prevent CC tracking from thinking - that the CC was set by an insn in the delay slot of a CALL_INSN. - - * expmed.c (init_expmed, expand_divmod): Allow machine to have - low cost specified for divides by powers of two if it can do it by - a method that if cheaper than the normal shift/branch/adjust mechanism. - - * cse.c (fold_rtx): When putting constant last, ensure that the - resulting insn is valid. - - * objc-actions (finish_objc): Remove dup defn of gen_declaration_file. - - * objc-parse.y (ridpointers, token_buffer): Define before use. - - * reload1.c (scan_paradoxical_subregs): Declare correctly. - - * tm-romp.h (ENCODE_SEGMENT_INFO): Use INTEGRATED bit to mark - SYMBOL_REFs that are addresses of functions (really their data blocks). - (LEGITIMATE_CONSTANT_P): Data block addresses of functions are not - valid operands. - * out-romp.c (symbolic_operand): Likewise. - * romp.md (call*): emit_move_insn will now do force_const_mem - so it needn't be done explicitly. - - * out-romp.c (output_fpop): Work around yet another RT fp bug; - cannot merge output and first operand for SFmode if general reg. - - * romp.md: Add new pattern to match combination of copy and test. - Use nilo instruction to set CC. - -Fri Sep 14 07:07:01 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * c-tree.h: Define all *_type_node trees defined in c-decl.c, in the - same order as defined there. - -Fri Sep 14 08:39:17 1990 Michael Tiemann (tiemann at cygnus.com) - - * cplus-typeck.c (build_c_cast): Convert READONLY_DECLs to make up - for the fact that we do not call `default_conversion' anymore. - - * function.c (instantiate_virtual_regs): If the function is inline, - we don't need to worry about making valid rtl, but we do need to - worry about instantiating all virtual registers. Otherwise we must - make the rtl valid, and we have other opportunities to eliminate the - virtual registers during the compilation. - -Thu Sep 13 16:00:05 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * reload.c (MATCHES): Check for different rtx's with same reg number. - - * fixincludes: Discard `.' from value of `files'. - - * c-parse.y (unary_expr): Use unary && to get address of label. - (stmt): Handle `goto *EXPRESSION;'. - * stmt.c (expand_computed_goto): New function. - - * gstdarg.h: New name for stdarg.h. - * Makefile (install-headers): Rename gstdarg.h while installing it. - - * sdbout.c (PUT_SDB_LAST_DIM): Get rid of SDB_DELIM. - (plain_type): Output accumulated array dims and size. - (plain_type_1): Eliminate arg NOSIZE. Save up dims and size. - Call self rather than plain_type for pointers and functions. - (sdbout_array_type, sdbout_array_depth): Functions deleted. - -Thu Sep 13 16:12:15 1990 Michael Tiemann (tiemann at cygnus.com) - - * cplus-class.c (build_method_call): Fix typo in deciding whether to - do hairy or trivial pointer conversions on `this'. - - * cplus-tree.c (layout_vbasetypes): Don't double-count space taken - up by virtual baseclasses. - -Wed Sep 12 18:14:19 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * tm-m68k.h: Use asm_fprintf widely. - (REG_PREFIX, IMMEDIATE_PREFIX, LOCAL_LABEL_PREFIX, USER_LABEL_PREFIX): - New macros. - - * final.c (asm_fprintf): New function. - -Wed Sep 12 06:07:50 1990 Michael Tiemann (tiemann at cygnus.com) - - * cplus-dbxout.c (dbxout_type): Output basetype size and offset info - in bits, not bytes. - - * cplus-decl.c (finish_{decl,function}): Set CLASSTYPE_ASM_WRITTEN - bit of types used by non-extern VAR_DECLs. Set it also for types of - PARM_DECLs and return types of functions defined in the file being - compiled. - -Tue Sep 11 13:21:40 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * sdbout.c (plain_type_1): New argument NOSIZE. Inhibits size output. - (sdbout_array_type): Call plain_type_1 directly; set NOSIZE. - - * sdbout.c (sdbout_array_type): New argument DEPTH. - Don't output more than SDB_MAX_DIM dimensions. - (sdbout_array_depth): New function. - (plain_type_1): Start DEPTH by calling sdbout_array_depth. - - * gnulib2.c (_bb_init_func): Library member now named _bb. - - * tree.h: Add comments. - -Mon Sep 10 17:20:06 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * Makefile.in (install): Fix typo. - - * cccp.c (macarg1): With -traditional, backslash quotes chars. - -Mon Sep 10 16:37:01 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * jump.c (jump_optimize): Don't swap THEN and ELSE parts during jumps - runs after reload. - -Mon Sep 10 13:07:39 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * cccp.c (collect_expansion): Don't actually substitutee into a - string if ANSI; just consider warning. - - * gnulib2.c (div_qrrnd for i386): Fix typo. Rename some args. - - * sdbout.c (sdbout_array_type): New argument DEPTH. - Don't output more than SDB_MAX_DIM dimensions. - (plain_type_1): Start DEPTH at 1. - -Sun Sep 9 22:02:24 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * out-a29k.c (gen_reg_operand): Exclude SUBREG of a special - register. - - * cse.c: (fold_rtx): Get equivalent for register before seeing if - memory reference is to constant pool. - (cse_ins): Only call force_const_mem if we actually try to use - the constant (i.e., we haven't found anything cheaper). - -Sun Sep 9 21:49:18 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * ..._BIG_ENDIAN: Now expect definition to be 0 or 1. - All refs and defs changed. - - * tm-mips.h (CPP_SPEC): Error for -EL (for -EB, if DECSTATION). - - * sdbout.c (sdbout_one_type): Set TREE_ASM_BEING_WRITTEN before - recursion, and TREE_ASM_WRITTEN after. - -Sat Sep 8 16:47:27 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * hard-params.c (main): Don't try to malloc all memory. - -Sat Sep 8 16:38:53 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * reload1.c (reload): Set reg_equiv_constant if the equivalence - is any constant, not just a legitimate constant operand. - - * final.c (get_attr_length, shorten_branches, final_scan_insn): - If JUMP_TABLES_IN_TEXT_SECTION is defined, don't put jump tables - in readonly data section, even if it exists. - -Sat Sep 8 14:07:05 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * Makefile.in (bootstrap*): Pass null ALLOCA definition to recursive - makes when compiling with GCC since it never needs alloca.c. - - * c-typeck.c (build_binary_op_nodefault): Warn for signed < unsigned. - Controlled by -W. - - * tm-i386v4.h: New file. - -Fri Sep 7 13:10:24 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * cccp.c (STDC_VALUE): New macro, defaulting to 1. - (intialize_builtins): Use that. - - * m68k.md (movqi): `st' does not set cc's. - -Fri Sep 7 07:49:23 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * genemit.c (gen_expand): Fix test for no C code. - If no C code, no MATCH_DUPs, and only one insn to write, handle - like DEFINE_INSN and return that insn rather than making a sequence. - - * emit-rtl.c (add_insn_after): If previous or next insn is a - SEQUENCE, update the NEXT_INSN in the last insn in the SEQUENCE or - PREV_INSN of the first, as appropriate. - (emit_insn_before, emit_jump_insn_before, emit_note_before): - Call add_insn_after. - - * stmt.c (check_for_full_enumeration_handling): If a switch whose index - is an enumerated type contains labels for every enumeration value, - make the label for the last value the default label since such a - switch can never fall through. - - * genattr.c (fatal): Declare first arg correctly. - - * combine.c (try_combine): No longer check REG_FUNCTION_VALUE_P; - its value shouldn't matter once RTL generation is complete. - (subst): If NOT is present as an operand in commutative operation, - put it last to reduce the number of required patterns. - - * out-romp.c (output_fpops): Align to word boundary before writing - any floating-point blocks. - - * function.c (instantiate_virtual_regs_1): Fix typo in previous change. - When a MEM must be copied, use copy_rtx; the PLUS may also be shared. - -Thu Sep 6 15:19:42 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * gcc.c (do_spec_1): Don't add __ to -D if __ already present. - - * c-typeck.c (convert_for_assignment): - Better warning for FCN * vs. void * - Specific warning for char * vs. unsigned char *. - -Thu Sep 6 14:52:08 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * reorg.c (find_basic_block): Return -1, not 0, if we can't find - the basic block. - (mark_target_live_regs): Clear PENDING_DEAD_REGS unconditionally. - (relax_delay_slots): Don't call optimize_skip for unconditional jump. - Only try to remove jump if it is a simple conditional or - unconditional jump (but not a tablejump or similar such). - - * cse.c (invalidate, refers_to_mem_p, cse_rtx_addr_varies_p): - Consider (plus (reg) (const_int)) to be a fixed address if REG - is constant; old code just handled REG. - - * genrecog.c (enum routine_type): Use to distinguish two types of - routines that we write: recog and split_insns. - (make_split_sequence): Write out extern for gen_split_ function. - (break_out_subroutines, write_subroutine, write_tree, main): - Use new enum routine_type instead of passing "split" or "recog". - (write_subroutine): Write correct type for splitting functions and - return 0, not -1. - (main): Write includes before declarations of gen_split_ functions - since "rtx" is needed for them. - * rtl.h (try_split, split_insns): Added definitions. - -Wed Sep 5 16:20:07 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * Makefile.in (includes): Use proper directory. - -Tue Sep 4 13:59:31 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * c-decl.c (store_parm_decls): Let extra_warnings control - warnings about parms not declared. - - * flow.c (life_analysis): Move code to detect stack-adjust insns. - It was unreachable. - - * gnulib.c, gnulib2.c (abort): #undef in case config.h defines it. - -Mon Sep 3 17:50:16 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * calls.c (expand_call): If SETUP_INCOMIMG_VARARGS is defined, pass - unnamed args in registers. - * function.c (assign_parms): Call SETUP_INCOMING_VARARGS for - stdargs as well as varargs; ensure we only call it once. - - * function.c (instantiate_virtual_regs_1): Don't assume all memory - addresses are valid for all insns. - -Sun Sep 2 22:17:40 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * expr.c (emit_library_call): Push all stack args, then load regs. - - * c-decl.c (c_build_type_variant): For an ARRAY_TYPE, - put the qualifier into the array as well as the element. - (grokdeclarator): When a field or variable is supposed to be - a const or volatile array, make the array elements const or - volatile, but also make the field or variable so. - - * c-decl.c (grokdeclarator): Turn off the warning for const or volatile - function type when making an array. It was useless. - -Fri Aug 31 16:26:40 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * c-common.c (truthvalue_conversion): Let the - language-specific code decide how to convert EXPR - if it is not one of the special forms we recognize. - -Fri Aug 31 15:08:19 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * gcc.c (execute): Use I instead of undefined var J if DEBUG defined. - -Fri Aug 31 14:37:36 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * sdbout.c (sdbout_begin_block): Delete excess arg to sdbout_block. - -Thu Aug 30 21:31:55 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * expmed.c (extract_bit_field): Fix typos in computations of UNIT. - -Wed Aug 29 12:33:33 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * sdbout.c (sdbout_reg_parms): Don't advance parm twice. - -Tue Aug 28 22:49:41 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * cccp.c (delete_newlines): New function. - (macroexpand): Remove newlines from args used more than once. - -Tue Aug 28 22:16:50 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * Makefile.in (sched.o): Add to list of files to compile. - - * c-parse.y (position_after_white_space): Declare with correct type. - - * fold-const.c (optimize_bit_field_compare): Fix typo. - - * reorg.c (split_insns): No longer need extern for this here. - - * toplev.c (sched_dump_file): Define. - (compile_file): Initialize and print sched_time and sched2_time. - - * local-alloc.c (block_alloc): Fix typo in allocation of insn_map. - - * cse.c (cse_insn): Try related value in case where CONST is seen - first and SYMBOL_REF later. - -Tue Aug 28 16:26:50 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * cccp.c (main): Don't modify or validate arg of -D here. - (make_definition): Do it all here. - - * function.c (assign_parms): Reenable `register' for parms. - -Tue Aug 28 07:12:19 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * tm-a29k.h (CONST_COSTS): All CONST_INTs are cost zero; adjust - SYMBOL_REF and CONST_DOUBLE costs to reflect their actual cost. - - * expr.c (expand_expr): Don't suppress EXPAND_SUM here if not Pmode. - (expand_expr, case *_DECL): Return constant address if - EXPAND_SUM or EXPAND_INTO_STACK in addition to EXPAND_CONST_ADDRESS; - all of these cases will later call memory_address. - (expand_expr, case COMPONENT_REF): Always make recursive call with - EXPAND_SUM. - (expand_expr, case PLUS_EXPR): Try to form constant if X + CONST and - mode is Pmode without EXPAND_SUM; if not EXPAND_SUM, use force_operand. - Check for MODE != Pmode with EXPAND_SUM here. - (expand_expr, case MINUS_EXPR): Always process X - CONST_INT as - X + (-CONST_INT)). - -Sun Aug 26 23:10:10 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * c-decl.c (c_decode_option): Handle -funsigned-bitfields. - (grokdeclarator): Do the real work. - (grokfield): Pass either FIELD or BITFIELD to grokdeclarator. - - * tm-att386.h (asm_output_common): Use SIZE, not ROUNDED. - -Sat Aug 25 17:17:27 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * c-parse.y (unary_expr): Turn off handling of &... - * c-decl.c (store_parm_decls): Turn off extra dummy parameter. - - * tm-att386.h (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS): New macros. - (BSS_SECTION_ASM_OP): New macro. - (ASM_OUTPUT_LOCAL): Call bss_section, don't just print .bss. - - * combine.c (subst): Handle shift within mem, as multiplication. - -Sat Aug 25 11:43:09 1990 Michael Tiemann (tiemann at cygnus.com) - - * final.c (alter_cond): Handle CC_INVERTED. - - * conditions.h (CC_INVERTED): New flag indicating that the condition - tested leaves the falgs set opposite to the condition tested. This - is unsafe for IEEE floating point operations, but useful for integer - operations which can combine with condition-code setting operations. - - * c-parse.y (position_after_white_space): New function. Skips - all of the whitespace at the current location in the input - file, taking NEXTCHAR into account. Changed all callers of - `skip_white_space' in grammar to use this function instead. - - * genrecog.c (main): Generate code which is more easily optimized by - GCC's cse. In particular, start each recognizer with the address of - `recog_operands' in a register. - - * reload.c (combine_reloads): Can only combine reloads if the - register we find can hold the entire output reload (i.e., SFmode - register may not be suitable for combining with DFmode register). - - * optabs.c (have_sub2_insn): Fixed typo. - * combine.c (combine_instructions): Fixed typo in comment. - - * function.c (expand_function_end): Emit a barrier after a RETURN - jump. - - * Added diffs for new instruction scheduling code. - * emit-rtl.c (try_split): Moved here from reorg.c and made - public. Both instruction scheduling and delayed branch - filling now use the same code to split insns. - * flags.h: Add new flags FLAG_SCHEDULE_INSNS for instruction - scheduling before register allocation and - FLAG_SCHEDULE_INSNS_AFTER_RELOAD for insn scheduling after - register allocation. - * recog.c (constrain_operands): Recognize pseudo registers as - registers for the purpose of insn constraint matching before - register allocation. Otherwise, the insn scheduler assumes - the operands will be memory, which is usually wrong (and - causes it to build bad schedules). - * sched.c (order_calls): New function. For two CALL_INSNS in - the rtl chain, we set up a constraint that the second - CALL_INSN may not be scheduled to run before the first. - (sched_analyze_*): Three kinds of dependencies (true, anti, - and output) constrain the order in which insns can be - rearranged and still preserve their execution semantics. - We now handle dependencies for pseudo and hard register usage - and for memory usage in these functions. - (launch_links): The ordering of which newly ready insns to - execute is now preserved according to their `priority' in the - insn chain, and no longer on their order in the dependency - list from which they were launched. - (schedule_block): Removed support for trying to schedule insns - taking branch delays into account. Reorg.c should be hacked - to understand which insns to pull into delay slots and which - insns to leave alone. - (schedule_block): (Re-)compute all register life information here. - No longer dependent on flow to keep `basic_block_live_at_end' - allocated. - (schedule_insns): Recompute LABEL->BASIC BLOCK mapping, so we - can compute register life information. - * rtl.c (add_dependence): New function to add and remove insn - dependencies. If an insn (I2) must execute after another - (I1), we add an INSN_LIST containing I1 to I2's LOG_LINKS. - If such an INSN_LIST is already in I2's LOG_LINKS, we don't - add a second. - (remove_dependence): Similar, but removes dependencies. May - not actually be needed. - * toplev.c (compile_file,rest_of_compilation): Added code for - dumping info about insn scheduling. - -Fri Aug 24 17:24:03 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * Implement `aligned (INTEGER)' attribute for real. - * c-parse.y (attrib): Really record info for `aligned' attribute. - Don't warn for any integer alignment. - (attribute_list): Make a list. - (initdcl, notype_initdcl, component_declarator): Handle that info. - * c-common.c (decl_attributes): New function. - -Fri Aug 24 07:12:05 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * genattrtab.c (insn-config.h): This is really needed after all. - * Makefile.in (genattrab.o): Show dependency on insn-config.h. - - * local-alloc.c (block_alloc): Don't update qty_birth for a - register whose quantity is <= 0. - - * fold-const.c (decode_field_reference): Actually obtain unsigned - type where one is wanted. - (merge_component_references): Correctly test for mutually exclusive - conditions. - -Thu Aug 23 14:56:44 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * c-typeck.c (digest_initializer): No pedantic warning for string - and array of unsigned char. - - * tree.c (get_identifier): Do id_clash_len stuff if length equals that. - -Thu Aug 23 10:30:10 1990 Michael Tiemann (tiemann at cygnus.com) - - * cplus-tree.h (CLASSTYPE_CID): Key off of TYPE_MAIN_VARIANT. - -Thu Aug 23 06:44:33 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * out-romp.c (romp_pushes_stack): Don't count - current_function_pretend_args_size in size of stack. - -Wed Aug 22 18:00:07 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * tm-a29k.h, tm-a29kunix.h, xm-a29k.h, a29k.md, out-a29k.c: New files. - - * config.gcc (a29k-unix): New target. - - * calls.c (expand_call): Allow FUNCTION_ARG to return an EXPR_LIST - specifying multiple registers to load. - (store_one_arg): Likewise; also delete handling of fully-in-register - case, which hasn't been handled here for a while. - * expr.c (emit_library_call): Our subset of calling sequence for - library routines does not include multiple registers for an arg. - -Tue Aug 21 17:44:49 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * make-cc1.com: Compile and link version.c. - - * Makefile.in (install-gnulib): Create libg.a if none already. - - * expr.c (convert_move): Handle expand_unop retval not same as target. - - * reload.c (find_reloads): For register letters, don't win if BLK. - - * sdbout.c (sdbout_toplevel_data): Fix error message. - - * protoize.c (open): Prototype deleted. - - * flow.c (mark_set_1, mark_used_regs): Update reg_first_use. - (allocate_for_life_analysis): Allocate and clear it. - * local-alloc.c (block_alloc): Calculate INSN_MAP. - Get first use of each reg from reg_first_use. - - * tm-vms.h (MAYBE_VMS_FUNCTION_PROLOGUE): Distinguish C from C++. - (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS): Add a const data section. - (ASM_OUTPUT_EXTERNAL): Use that section. - (SELECT_SECTION): Go to that section when appropriate. - -Tue Aug 21 18:26:47 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * reorg.c (fill_simple_delay_slots): Mark anything referenced by an - insn that will be placed in a delay slot in the epilogue as being - needed at the end of the function. - - * cse.c (constant_pool_entries_found): New static var. - (cse_main): Initialize it. - (use_related_value): Correctly look for registers in hash table. - (fold_rtx): Fold constant pool entries to their constants and - set constant_pool_entries_found. - (cse_insn): If we weren't able to place a constant in an insn - and we have previously seen constant pool entries used, set up - to try the constant pool entry also. - -Mon Aug 20 12:14:27 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * function.c (assign_parms): Set LAST_NAMED for parm before dummy. - See August 9 change in c-parse.y. - - * gcc.c (process_command): Split -oFOO into two arguments. - - * stmt.c (expand_asm_operands): Handle COMPONENT_REF and - ARRAY_REF directly as output operands. Avoids crash if BLKmode. - - * c-parse.y, cplus-parse.y, objc-parse.y: Include stdio before input.h. - * input.h: Declare finput. - - * expr.c (emit_push_insn): Don't adjust for EXTRA separately - if will have to adjust the stack anyway. - - * m68k.md (*sh*si3): On 68000, optimize case of >= 16 bits. - - * varasm.c (decode_rtx_const): Don't dereference a PLUS - subexpression of a CONST twice. - -Sun Aug 19 21:51:51 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * toplev.c (finput): Define here. - * *-parse.y (lineno, finput): Duplicate definitions deleted. - - * global-alloc.c (find_reg): Test best_reg against 0, - not first_pseudo_register. - -Sun Aug 19 17:48:22 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * explow.c (plus_constant): If adding to constant pool constant, - return a new one. - - * genattrtab.c: Need not include insn-config.h. - -Sun Aug 19 17:23:10 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * tm-hp9k320bsd.h (CPP_SPEC): Def __HAVE_68881__ like __HAVE_FPU__. - - * Makefile.in (USE_ALLOCA): Test was backwards. - (USE_HOST_ALLOCA): Likewise. - -Sun Aug 19 09:58:16 1990 Michael Tiemann (tiemann at cygnus.com) - - * stmt.c: Fixes from 2.0 for fixup_goto incorporated here. - - * cplus-decl2.c (write_vtable_entries): Don't test TREE_EXTERNAL - of DECL_CONTEXT (FN). TREE_EXTERNAL is not meaningful for types. - -Fri Aug 17 22:14:09 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * optabs.c (emit_cmp_insn): Don't abort after floating lib cmp. - -Thu Aug 16 23:16:40 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * varasm.c (assemble_variable, assemble_static_space): Don't - call data section if -fshared-data. If this section is needed, - it should be entered from elsewhere, and this is believe to be - done in all known cases. - (output_constant_pool): Add support for ASM_OUTPUT_SPECIAL_POOL_ENTRY - which writes certain constant pool entries specially; used for TOC - on RS/6000. - (assemble_external_libcall): New function. - * expr.c (emit_library_call): Call it. - - * reorg.c (mark_target_live_regs): Don't follow around infinite loops. - - * varasm.c (struct rtx_cont): Don't use enums in bit fields if - ONLY_INT_FIELDS is defined. - - * cse.c (remove): Rename to remove_from_table to avoid conflict - with `remove' defined in stdio.h. - -Thu Aug 16 22:44:35 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * stmt.c: fixup_gotos must ignore blocks started after the goto. - (block_start_count): New variable, and slot in some structures. - (expand_function_start): Initialize it. - (expand_start_bindings): Increment it and store in struct nesting. - (expand_goto): Store it in struct goto_fixup. - (fixup_gotos): Compare fixup's count with block's count. - (save_stmt_status, restore_stmt_status): Handle block_start_count. - * function.h (struct function): Make slot to save it. - -Thu Aug 16 18:02:03 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * obtabs.c (expand_fix, expand_float): Support direct conversion - between SFmode and fixed modes by library call. - -Wed Aug 15 18:36:28 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * cccp.c (main): Allow -M to work on .s files by checking for .s - and .S suffixes when writing dependencies. - - * reorg.c (optimize_skip, fill_eager_delay_slots, try_host_target): - Don't need to call can_reverse_comparison_p because invert_jump is - safe for floating-point; only reverse_condition isn't. - -Wed Aug 15 15:50:36 1990 Michael Tiemann (tiemann at cygnus.com) - - * dbxout.c (dbxout_type): Skip past const and volatile qualifiers - that might appear in method names. - -Wed Aug 15 15:44:17 1990 Richard Stallman (rms at mole.ai.mit.edu) - - * c-parse.y (hash, is_reserved_word): Use __inline. - - * cccp.c (main): Support -dN and -dD. Support -lint. - (dump_macros): Two new alternatives. - (handle_directive): Output macro definitions if -dN or -dD. - (rescan): Check comments if -lint. - (get_lintcmd): New subroutine. - - * c-decl.c (c_decode_option): Handle -fshort-double. - (init_decl_processing): Create double_type_node accordingly. - - * c-decl.c (c_decode_option): Handle -Wno... - -Tue Aug 14 23:10:40 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * explow.c (break_out_memory_refs): Don't break out reference if - constant but not legitimate constant for a machine insn. - (memory_address): Only put legitimate constants, rather than all - constants, into registers if they are used as an address. - -Tue Aug 14 14:34:02 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * reorg.c (steal_delay_list): Can't put something in a - non-annulled delay slot that can trap. - - * tm-i860.h (GO_IF_LEGITIMATE_ADDRESS): Typo testing offset alignment. - - * cccp.c (do_assert, do_unassert, check_assertion): New functions. - (compare_keyword_lists, read_keyword_list, free_keyword_list): - New functions. - * cexp.y (yylex): Allow `#' as token. - Return name and length of symbol. - (keywords): New nonterminal. - (expr): Recognize # to test an assertion. - (U_CHAR, struct arglist): Data types copied from cccp.c. - (%union): New alternatives `keywords' and `name'. - -Mon Aug 13 22:26:19 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * tm-romp.h (SLOW_BYTE_ACCESS): Set to 0. - - * expmed.c (store_bit_field, extract_bit_field): Use get_best_mode - to select mode to use for accessing memory when bitfield insns don't - accept memory. - - * c-common.c (rewrite_for_merged_ref, make_merged_ref): Deleted. - (merge_component_comparisons): Delete from here. - * c-tree.h (merge_component_comparisons): No longer global. - * c-convert.c (build_binary_op_nodefault): Don't try to merge component - references here; now done in fold. - * cplus-typeck.c (build_binary_op_nodefault): Likewise. - * Makefile.in (fold-const.o): Now includes flags.h. - * fold-const.c: Likewise. - (STRIP_NOPS): New macro. - (decode_field_reference, all_ones_mask): New functions. - (merge_component_references): Put rewritten version here. - This fixes bugs in the way that comparisons with non-equal - constants (!p->a && p->b) are handled and in endianness checking. - Also accepts more general comparisons, and, in particular, its - own output so more than a pair of operations can be merged. - (fold): Call it for TRUTH_{AND*,OR*}_EXPR. - - * tree.def (BIT_FIELD_REF): New tree code. - * expr.c (get_inner_reference): Support BIT_FIELD_REF. - If bitfield is a complete mode-sized unit, return that mode; if it - is a subset of bits within a mode-sized unit, return VOIDmode. - (expand_assignment): Check for BIT_FIELD_REF. - Use mode returned from get_inner_reference to see if bit field. - (store_constructor): Likewise. - (store_field): Don't pass arg BIT_FIELD; use MODE == VOIDmode - instead. All callers changed. - (expand_expr, case BIT_FIELD_REF): New case. Handled same as - COMPONENT_REF. - Use mode returned from get_inner_reference rather than DECL_BIT_FIELD. - (expand_increment): Must stabilize BIT_FIELD_REF. - (do_jump, case NOP_EXPR): Check for inner BIT_FIELD_REF and ARRAY_REF. - (do_jump, case COMPONENT_REF): Generalize to handle BIT_FIELD_REF - and some ARRAY_REFs also. - * fold-const.c (operand_equal_p): Handle BIT_FIELD_REF. - * tree.c (staticp): Rework to use switch instead of if-then-else. - Add support for BIT_FIELD_REF. - (stabilize_reference, simple_cst_equal): Support BIT_FIELD_REF. - - * c-common.c (truthvalue_conversion): Rework to use switch rather - than if-then-else. - Generate either TRUTH_{OR*|AND*}_EXPR or comparison operations as - much as possible. - Handle REAL_CST, ADDR_EXPR, ABS_EXPR, FLOAT_EXPR, FFS_EXPR, - LROTATE_EXPR, RROTATE_EXPR, BIT_XOR_EXPR, and MINUS_EXPR. - Call fold for COND_EXPRs that we make. - * c-convert.c (build_unary_op): invert_truthvalue can't return 0, - so don't check for it. - (invert_truthvalue): Delete from here. - (convert_to_integer, build_conditional_expr): Try to fold COND_EXPR. - * c-plus-cvt.c (convert_to_integer): Likewise. - * cplus-typeck.c (build_conditional_expr): Likewise. - (build_unary_op): invert_truthvalue can't return 0. - (invert_truthvalue): Delete from here. - * fold-const.c (invert_truthvalue): Move to here. - Don't invert floating-point test. - Look inside conversions. - Use recursive call to negate inside logical operations rather than - building a TRUTH_NOT_EXPR. - Allow only certain TREE_CODEs as operands; abort for the rest. - (fold_convert): Accept second argument that is item being - converted to ensure that NOPs have been stripped. - (operand_equal_p): Return 0 if either operand has side effects. - If both integer or real constants, check the values. - Do a more thorough test to see if two items are identical; - specifically, compare the operands of simple TREE_CODEs. - (omit_one_operand, distribute_bit_expr): New functions. - (make_bit_field_ref, optimize_bit_field_compare): Likewise. - (fold): Remove LOSES; now done explicitly or by calling - omit_one_operand. Some previous uses weren't needed. - Try to fold any COND_EXPRs and some COMPOUND_EXPRs we make. - Remove pair of NEGATE_EXPRs and BIT_NOT_EXPRs. - Convert "- (a - b)" to "b - a" for non-floating-point. - ABS_EXPR applied to ABS_EXPR or NEGATE_EXPR is ABS_EXPR of inner arg. - Convert "a + (-b)" to "a - b" and "a - (-b)" to "a + b". - If adding ANDs with constants that have no bits, in common, try - bitwise-or, since we may then be able to distribute the operation, - e.g., (a & 7) + (a & 0x70) -> a & 0x77. - Add missing last arg to operand_equal_p call. - Call distribute_bit_expr for BIT_AND_EXPR and BIT_IOR_EXPR. - Exclusive-or with all ones is bit negation. - If second arg of BIT_AND_TC_EXPR is constant, convert to BIT_AND_EXPR. - Handle TRUTH_NOT_EXPR by calling invert_truthvalue. - Call optimize_bit_field_compare for comparisons of bitfields. - Handle "a ? 1 : 0" and "a ? 0 : 1" as test or negated test. - Simplify "a & 4 ? a & 4 : 0" and "a ? a : 0" to remove conditonal. - * stor-layout.c (get_best_mode): New function. - * machmode.h: Define it. - * tree.c (integer_pow2p): New function. - * tree.h: Declare new functions and functions no longer static. - -Mon Aug 13 17:45:13 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * config.gcc (sun3-mach): New alternative. - * tm-sun3mach.h: New file. - - * m68k.md (bfextu patterns): Set CC_NOT_NEGATIVE. - -Mon Aug 13 10:14:37 1990 Michael Tiemann (tiemann at cygnus.com) - - * cplus-decl2.c (flag_minimal_debug): Now is default is - -fflag-minimal-debug. - - * cplus-tree.c (virtual_member): Return the assoc of a non-virtual - basetype that comes from a virtual baseclass. Changed callers - which used to call `value_member' to call virtual_member instead. - -Mon Aug 13 06:54:04 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * optabs.c (expand_twoval_binop): Fix typo. - - * cse.c (lookup_as_function): Don't assume CODE is a unary - operation. It might be a binary op or REG. - -Sun Aug 12 21:42:55 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * expr.c (expand_expr, case COND_EXPR): Don't abort if first arg of - COND_EXPR isn't a comparison; just suppress the do_store_flag call. - -Sun Aug 12 14:26:45 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * tree.h (enum built_in_function): Delete comma after last name. - * c-parse.h (enum rid): Likewise. - * expr.h (enum optab_methods): Likewise. - * stab.h: Add dummy enum name at end. - - * config.gcc (genix): Set tm_file. - * tm-genix.h (ASM_OUTPUT_DOUBLE): New overriding definition. - - * tree.h (struct tree_type, struct tree_decl): Handle ONLY_INT_FIELDS. - * rtl.h (struct rtx_def): Likewise. That macro goes in xm-*.h. - -Sat Aug 11 16:56:19 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * cplus-decl.c (finish_function): Check value of HAVE_return before - calling gen_return. - - * reorg.c (optimize_skip): Don't reject skip when we jump around an - insn and merge at the return point. - -Fri Aug 10 17:00:31 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * dbxout.c (dbxout_parms, dbxout_reg_parms): Ignore nameless parms. - * sdbout.c (sdbout_parms, sdbout_reg_parms): Ignore nameless parms. - -Fri Aug 10 14:14:08 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * recog.c (indirect_operand): Modes need not agree if MODE == VOIDmode; - remove test from here since it is in memory_operand, which this calls. - -Thu Aug 9 15:19:17 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-decl.c (store_parm_decls): If function has variable number of args, - put a dummy decl at end of parmlist. - * c-parse.y (unary_expr): Handle &... with address of dummy decl. - - * tm-*.h (LEGITIMIZE_ADDRESS): Go to WIN instead of returning. - - * cccp.c (handle_directive): Add code to support `# DIGIT' - but disable it for the time being. - - * tm-hp9k320.h (CPP_SPEC): Define _HPUX_SOURCE if not ANSI. - (CPP_PREDEFINES): Don't define it here. - Do define alternatives with __ prepended. - -Wed Aug 8 14:00:26 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * out-romp.c: Don't include hard-reg-set; already in insn-output.c. - - * explow.c: insn-flags.h is needed to see if "probe" insn exists. - * Makefile.in (explow.o): Likewise. - -Wed Aug 8 13:35:00 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * cccp.c (check_macro_name): Warn if name is `defined'. - - * tm-sun386i.h (ASM_IDENTIFY_GCC): If profiling, put a NOP after - gcc_compiled. - -Tue Aug 7 23:51:38 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * toplev.c (main): Handle -W options like -f options. - This supports -Wnounused, and such like. - (warn_uninitialized): New variable, controls those warnings. - Set it for -Wuninitialized, and for -W. - -Tue Aug 7 13:24:58 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * genextract.c (walk_rtx): Fix typo in MATCH_PARALLEL case. - - * explow.c (allocate_dynamic_stack_space): Pass size of allocated stack - to gen_probe. - -Tue Aug 7 12:19:46 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * pyr.md (extendsfdf2, truncsfdf2, float*, fix*): Use `&'. - -Tue Aug 7 07:13:54 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * jump.c (find_cross_jump): Include a USE or CLOBBER in cross jump - but don't count it against minimum size. - Never return when cross-jump hasn't actually been done. - -Mon Aug 6 18:50:12 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * varasm.c: Include regs.h. - (decode_reg_name): Remove extern for reg_names; it is in regs.h. - * Makefile.in (varasm.o): Depends on regs.h. - -Mon Aug 6 12:46:07 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-decl.c (grokdeclarator): Don't warn if initialized fcn is extern. - (start_decl): Don't warn at all for initialized extern. - - * final.c (final_start_function): Handle PROFILE_BEFORE_PROLOGUE. - (profile_function): New subroutine. - - * tm-i386sco.h: New file. - * config.gcc (i386-sco): New alternative. - - * gcc.c (ENDFILE_SPEC): New macro. - (do_spec_1): Handle %E. - (link_spec): Use %E. - - * xm-i386.h (alloca): Define without arg. - - * Makefile.in (stage*): Use RANLIB_TEST. - (LIMITS_H): New variable. - (USER_H): Use that. - * make-i386sco: New file. - -Sun Aug 5 13:11:04 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * rtl.h: Delete all machine mode defns; include machmode.h instead. - * tree.h: Likewise. - * machmode.h: New file. - * stor-layout.c: No longer include rtl.h. - * Makefile.in: (RTL_H, TREE_H): Add machmode.h. - (stor-layout.o): No longer depends on RTL_H. - - * c-common.c (binary_op_error, shorten_compare): Should no longer - have been static when moved here. - -Sun Aug 5 12:57:02 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * stor-layout.c (layout_record, layout_union): Test value of - PCC_BITFIELD_TYPE_MATTERS for being nonzero, if it is defined. - * tm-*.h: Define with value 1. - * tm-vax.h (PCC_BITFIELD_TYPE_MATTERS): Depends on -mvaxc-alignment. - - * proto.h: New file. - * Makefile.in (USER_H): Add that file. - -Sun Aug 5 00:04:08 1990 Michael Tiemann (tiemann at cygnus.com) - - * cplus-decl2.c (grokfield): It is no longer legal to specify - the initializer for a static const member in the class - declaration. Dealing with default initializers is basically - impossible. - - * cplus-init.c (build_delete): Don't wrap `addr' in a SAVE_EXPR - until it is in fact an address. This allows us to call - destructors on the return values of function calls. - - * cplus-typeck.c (commontype): Fixed bug in OFFSET_TYPE case which - led to infinite recursion (since we did not reduce the types - before we recursed). - - * cplus-lex.c (check_newline): Make `#pragma implementation' more - forgiving. - - * cplus-init.c (expand_aggr_init): Changed Jan 20th change so that - we test whether TYPE has a constructor defined, and we do not test - at all whether INIT was from a GNU constructor expression or not. - - * cplus-typeck.c (build_modify_expr_1): Don't return - `error_mark_node' unless there really was an error. If there is - no work to do, return `integer_zero_node'. - - * cplus-class.c (propagate_basetype_offsets): Count the space - between baseclasses, not just the space they occupy. - - * cplus-typeck.c (commontype): Don't drop the exceptions that are - raised by functions and methods. - - * cplus-cvt.c (convert_to_real): Fix if/else level problem in - case where EXPR is of aggregate type. - - * cplus-decl.c (finish_decl): Emit a line-number note to give - users a chance to set a breakpoint before the initialization of an - object takes place. - - * cplus-class.c (build_method_call): If the function we get is not - directly from the object we have, call `convert_pointer_to' if the - object uses multiple inheritance or virtual baseclasses. - - * cplus-typeck.c (build_binary_op_nodefault): Don't call - `convert_to_pointer' with an argument that might be - the integer zero. - - * cplus-method.c (hack_identifier): Look for DECL_REFERENCE_SLOT - in RESULT_DECLs as well. - - * cplus-init.c (build_vec_delete): Don't forget to deallocate the - container if requested. Really use AUTO_DELETE and - AUTO_DELETE_VEC with the same interpretation as `build_delete' - gives to its AUTO_DELETE parameter. - -Sat Aug 4 22:08:44 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * jump.c (find_cross_jump): Use prev_nonnone_insn. - Don't cross-jump into the middle of a USE-CALL_INSN-CLOBBER - block; doing so can confuse reorg.c. - - * optabs.c (expand_binop, expand_binop, expand_twoval_binop): - If predicate doesn't match, ensure that operand is in a pseudo - register. Current code assumes that any register will suffice, - but an insn may want to reject certain hard registers. - (expand_unop, emit_unop_insn, emit_cmp_insn): Likewise. - -Sat Aug 4 15:29:09 1990 Michael Tiemann (rms at sugar-bombs.ai.mit.edu) - - * function.c (assign_parms): For parms passed by reference, - make the memory object's mode agree with the parm's original - type mode. - * calls.c (expand_call): Fixed braino in building argument - reference when FUNCTION_ARG_PASS_BY_REFERENCE is defined. - - * varasm.c (assemble_variable): Hack our way around the problem - that static class members look like initialized variables for the - purposes of establishing FIRST_GLOBAL_OBJECT_NAME. - - * cplus-lex.c (reinit_parse_for_method): Give error message for - common mistake of forgetting the function body. - - * cplus-typeck.c (build_component_ref): Make better error message - when field is not found. - - * cplus-class.c (finish_struct): TYPE_GETS_*_INIT_REF comes from - members as well. - - * cplus-typeck.c (c_expand_return): Give warning about returning - non-lvalues that come from functional casts. - - * cplus-search.c (get_base_distance): Changed to follow leftmost - path only when PARENT == TYPE_MAIN_VARIANT (PARENT). - - * cplus-class.c (modify_vtable_entries): Call get_base_distance - with 0 path_ptr, since we do not appear to use the path computed. - -Fri Aug 3 07:37:30 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * final.c (leaf_function_p): Delete line advertently retained - after change of July 29. - - * reorg.c (optimize_skip, try_hoist_target): Don't invert jump - unless can_reverse_comparison_p says it is OK. Use invert_jump - to do it. - (fill_simple_delay_slots): Another way flow of control can merge is - for two insns to jump to the same place; try to get insns from there. - (mostly_true_jump): Return 2 for a jump very likely to be true (the - branch back to the start of a loop). - (fill_slots_from_thread): Accept new arg LIKELY. If true, see if can - put increment in delay slot and undo it after the end of the loop. - (fill_eager_delay_slots): Pass new arg to fill_slots_from_thread. - If previous insn is conditional jump that also didn't get a delay - slot, see if swapping targets helps. - -Fri Aug 3 00:18:35 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * cccp.c (MAKE_POS): Avoid constant of uncertain signedness. - - * gnulib2.c (__bb_init_func): Add dummy function to prevent warning. - -Thu Aug 2 17:44:59 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * output.h (current_function_return_rtx): Add new variable. - * function.h (return_rtx): Likewise. - * function.c (push_function_context, pop_function_context): Save - and restore current_function_return_rtx. - (assign_parms, expand_function_start): Set current_function_return_rtx - to what is put in DECL_RTL (DECL_RESULT (current_function_decl)). - * reorg.c: No longer uses tree.h. - (dbr_schedule): Get result RTL from current_function_return_rtx instead - of reading it from current_function_decl. - * Makefile.in (reorg.o): No longer depends on TREE_H. - - * cse.c (remove_invalid_refs): Only invalidate an entry if it - references the actual register, not merely something sharing its - quantity. - (cse_insn): Don't abort if SRC and SRC_EQUIV map to different - hash classes. Merge them instead. - - * romp.md (mulsi3): Emit call to lmul$$ as a regular insn - rather than a CALL_INSN. - (divsi3, modsi3, udivsi3, umodsi3, call_libfcn): Deleted. - (divmodsi4, udivmodsi4): New patterns to call ldiv$$ and uldiv$$ - as a normal insn to allow CSE'ing of MOD with DIV. - -Wed Aug 1 21:56:08 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-parse.y (yylex): Don't warn about non-decimal unsigned by default - if `u' was specified. Add similar warning for long and long long. - -Tue Jul 31 23:31:46 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * tm-encore.h (FUNCTION_PROFILER): Override, putting `.' in label. - - * xm-vms.h (const): Delete the definition. - -Mon Jul 30 18:33:04 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-typeck.c (convert_for_assignment): Normally no warning - between char * and unsigned char *, etc. - (convert_arguments): Include arg number in incomplete type warning. - -Mon Jul 30 07:38:55 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * jump.c (invert_jump): Don't do anything with labels if NLABEL - equals JUMP_LABEL. - (redirect_jump): Don't try to reference LABEL_NUSES if olabel is - zero (meaning this is a return insn). - (redirect_exp): Handle case of converting return to jump to - label. - - * dbxout.c (dbxout_parms): Allow parameter at zero offset from - AP to be represented as (MEM (REG ...)). - * sdbout.c (sdbout_parms): Likewise. - -Sun Jul 29 22:51:00 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * optabs.c (expand_twoval_binop_convert): Deleted. - (expand_twoval_binop): Rework to be handle predicates, modes, and - failures in a manner consistent with expand_binop. - Move code from expand_twoval_binop_convert inline and rework to - no longer hard-wire SImode and to handle failure. - - * config.gcc: Finish change of July 24th to have make_var_file depend - on host machine. - - * jump.c: Now includes insn-flags.h. - (jump_optimize): Try to put a RETURN at the end of the function if - control flows through to it. - JUMP_LABEL can now be zero for a RETURN or conditional RETURN. - Try to convert jump to end of function into (possibly conditional) - RETURN. - Use next_active_insn instead of next_real_insn; these do the same - thing prior to reload, after which USE and CLOBBERs don't matter. - redirect_jump may now fail so don't set CHANGED if it does. - Delete optimization of jump to RETURN; now subsumed by follow_jumps. - Reset INSN_CODE if changing conditional jump to unconditional. - (cond_jump_p): Conditional RETURN is conditional jump. - (follow_jumps): Change argument name to AFTER_RELOAD. - If not after reload, do not chain across a USE or CLOBBER. - Recognize RETURN insns. - (tension_vector_labels): Likewise. - (redirect_jump, redirect_exp): If NLABEL is zero, turn JUMP into a - (possibly conditional) RETURN; use validate_change to see if such an - insn exists. - Now returns non-zero if succeeds, 0 otherwise. - Unconditional RETURN looks like (RETURN), not (SET (PC) (RETURN)). - (thread_jumps): Ignore any type of RETURN insn. - * Makefile.in (jump.o): Depends on insn-flags.h. - * loop.c (strength_reduce): Don't confuse conditional return with - jump to top of loop when LOOP_TOP == 0. - * final.c (leaf_function_p): No longer static; no longer takes an arg. - (final_start_function): Don't pass START to leaf_function_p. - * romp.md (return pattern): Convert to a named pattern. - -Sun Jul 29 16:05:27 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * tm-vms.h (ASM_OUTPUT_EXTERNAL): Check TREE_READONLY. - - * xm-vms.h (alloca): Use built-in alloca. - -Sun Jul 29 06:47:33 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * reorg.c (fill_slots_from_thread): Restore inadvertantly deleted - lines. - -Fri Jul 27 19:53:18 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * Makefile.in (reorg.o): Depends on tree.h, basic-block.h, regs.h, - and output.h - -Fri Jul 27 16:30:03 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * varasm.c (assemble_variable): Handle ASM_OUTPUT_SHARED_COMMON - and ASM_OUTPUT_SHARED_LOCAL. - - * tm-encore.h (SHARED_SECTION_ASM_OP): New macro. - (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_LOCAL): New. - All this waiting for papers from pabuhr@watmsg.waterloo.edu. - -Fri Jul 27 16:10:02 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * make-romp (CC): Set up to allow use of hc. - -Fri Jul 27 15:07:00 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * combine.c (subst): Handle (ASHIFT 1 x) in (EQ (AND ... y) 0) - only if little-endian. - -Thu Jul 26 23:19:15 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * expmed.c (expand_shift): Consistently call protect_from_queue - before doing anything else. - Always put operand1 of extzv into a register because it is SImode - and we assume that this means a register. - -Thu Jul 26 14:18:11 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * varasm.c (assemble_variable): Delete dead code. - DATA_ALIGNMENT takes tree and current alignment and gives new - alignment for a non-automatic variable of that type. - Also apply CONSTANT_ALIGNMENT to the initial value; it now takes - the constant and old alignment and gives the new alignment. - Adjust DECL_ALIGN to the resulting alignment. - Use floor_log2 consistently instead of duplicating its function. - (get_or_assign_label): Use CONSTANT_ALIGNMENT instead of DATA_ALIGNMENT - and pass type instead of decl. - * expr.c (get_pointer_alignment): Rework to: distinguish reliably - between expressions giving the address and those giving the item being - addressed; use the alignment from the type of the object being - pointer to; return 0 if the type is not a pointer; and other - miscellaneous changes. - (string_constant): Skip CONVERT_EXPR and NON_LVALUE_EXPR as well - as NOP_EXPR. - (expand_builtin): Allow get_pointer_alignment to fail, in which case - we call the actual function. - * stmt.c (expand_decl): Set actual alignment obtained into DECL_ALIGN - since it may be better aligned than required and get_pointer_alignment - can take advantage of this. - * tm-gmicro.h, tm-pyr.h, tm.romp-h: Add or replace definitions of - CONSTANT_ALIGNMENT to word-align string constants and - DATA_ALIGNMENT to word-align character arrarys for builtin memory - functions. - - * fold-const.c (rshift_double): Reset carry after each shift of - one bit. - - * vax.md (ashrsi3): If right shift by constant, emit as ASHIFTRT. - (ashrsi3_const): New pattern to match it. - (casel): Delete patterns no longer needed. - * cse.c (cse_insn): Remove unneeded part of change of July 23. - (fold_rtx): Convert shift with negative constant count to shift in - the opposite direction. - * combine.c (subst): Likewise. - - * emit-rtl.c (init_emit_once): Initialize arg_pointer_rtx before - struct pointer and static chain values in case they want to use it. - -Thu Jul 26 12:31:02 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * final.c (final_scan_insn): Align label table to boundary appropriate - for items of its size. - (get_attr_length, shorten_branches): Allow for label table alignment. - -Wed Jul 25 15:06:44 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * fixincludes: Handle uses of _IO* followed by spaces. - Change redirections for cd when testing that directory exists. - - By Tiemann: - - * emit-rtl.c (next_cc0_user): Handle insns in which cc0 - is set and used in the same insn. - - * final.c (leaf_function_p): Look inside INSNs which contain - a delayed-call sequence. - (final_start_function): Test `only_leaf_regs_used' before - `leaf_function_p', since that is likely to be faster. - (final_scan_insns): Normally we don't have NOTICE_UPDATE_CC - take action when processing the path of an annulled branch, - since that path does not affect the cc's of the fall-through - insns at all. However, we cannot always ignore the effect of - the cc's when processing a delayed annulled branch: when the - delayed annulled branch follows a label and carries a - REG_CC_STATUS note, that note must be processed. - - * genattr.c (main): Generate #defines for annulled branches - which are consistent with documentation. - - * reorg.c: Finish recent rework by modifying code specific to - machines that have annulling branches. - - * c-common.c (merge_component_comparisons): Previous logic did - not handle cases of (A == 1) && (B == 1), (A != 0) && (B != 0), - and (A != 1) || (B != 1). Fixed by expanding the logic out - longhand and letting the compiler do the proper cross-jumping. - - * tm-vms.h (ASM_OUTPUT_EXTERNAL): Use assemble_name. - - * expr.c (expand_expr): For BIND_EXPR, do the init for all vars. - - * stupid.c: Include flags.h. - * genrecog.c (main): Make insn-recog.c include flags.h. - -Sun Jul 22 12:04:43 1990 Michael Tiemann (tiemann at cygnus.com) - - * cplus-except.c (cplus_expand_end_except): If the user gives a - default handler, the exception is considered caught in that - handler. - * cplus-parse.y (except_stmts): Rest of fix went here, in DEFAULT - case. - - * cplus-decl.c (finish_decl): Don't emit cleanups twice. - - * cplus-class.c (finish_struct_bits): Don't call - `fixup_vbase_offsets'. - * cplus-tree.c (fixup_vbase_offsets): #if 0 this function. - - * cplus-cvt.c (build_default_binary_type_conversion): Handle - arguments which are REFERENCE_TYPE. - - * cplus-method.c (prepare_inline): Set DECL_CONTEXT of this - function's parameters. - - * cplus-decl.c (grokfndecl): When adding a new virtual function - entry, RAISES may change a second time. - -Thu Jul 5 10:44:39 1990 Michael Tiemann (tiemann at cygnus.com) - - * cplus-decl2.c (grokfield): Static consts need not be initialized - in the class definition. - -Mon Jul 2 06:12:49 1990 Michael Tiemann (tiemann at cygnus.com) - - * cplus-init.c (resolve_offset_ref): If BASETYPE is not a base - type for the current class, give error and return. - -Sun Jul 1 00:18:47 1990 Michael Tiemann (tiemann at cygnus.com) - - * cplus-decl.c (finish_function): Throw away more code if we have - an inline function from the interface. - - * cplus-class.c (add_virtual_function): Set DECL_VINDEX from the - virtual function which comes from the vtable shared by - CURRENT_CLASS_TYPE, if possibe. - - * cplus-typeck.c (build_binary_op): Call `default_conversion' - after doing type instantiation. - - * cplus-init.c (build_new): New 2.0 interpretation: `new int (10)' - means allocate an int, and initialize it with 10. - - * cplus-init.c (emit_base_init): Completion of fix for virtual - function table initialization. @@ BTW, this may now cause extra - virtual function table initializations. They will all be correct, - but they may also be redundant. GCC's optimizer doesn't know how - to remove even the simplest such redundancy. - -Sat Jun 30 13:54:30 1990 Michael Tiemann (tiemann at cygnus.com) - - * cplus-class.c (finish_base_struct): Store BASETYPE in the - VFIELDS chain (in its TREE_TYPE). - -Fri Jun 29 09:26:17 1990 Michael Tiemann (tiemann at cygnus.com) - - * cplus-class.c (build_vtable,prepare_fresh_vtable): Stash the - type that caused this vtable to be defined in DECL_CONTEXT - * cplus-search.c (bfs_unmark_finished_struct): Work around - DECL_CONTEXT conflict for vtables. @@ NOT A SOLUTION. - - * cplus-lex.c: Extend meaning of `#pragma implementation' - to allow files to `implement' types from general headers. - -Tue Jul 24 22:18:23 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * reorg.c: Major rework. Changes includes: - (mark_target_live_regs): Scan code to compute which registers are - live at particular insns. Uses tables created by flow, REG_DEAD - notes, and registers set before they are used. - (emit_delay_sequence): Always write SEQUENCE as INSN. Many routines - changed to reflect this. - (fill_simple_delay_slots): Loop for merge point when target of jump - comes back to fallthrough code. Try to get insns from there. - (fill_eager_delay_slots): Fallthrough and target case merged into new - function fill_slots_from_thread. - - * tm-romp.h, romp.md, out-romp.c, xm-romp.h, make-romp: New files to - support the ROMP microprocessor, used in the IBM PC RT. - - * recog.c (comparison_operator): New function. - - * jump.c (jump_optimize): If putting constant into register, see - if it is already present in the register. - -Tue Jul 24 15:35:04 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-typeck.c (build_binary_op_nodefault): Allow compare of any - pointer with const void *, etc. - -Tue Jul 24 17:10:59 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * expr.c (get_inner_reference): New function. - (expand_assignment): Use it to find out about our target. - (expand_expr, case COMPONENT_REF): Likewise. - (expand_expr, case COND_EXPR): If can do store-flag, convert - X ? A+1 : A to A + (X!=0); fold-const made the former from the latter. - Only create label when we know we will need it. - Simplify unnessarily complex call to safe_from_p. - (expand_expr): Make new variable UNSIGNEDP and use it instead - of TREE_UNSIGNED (type). Also, consistently use existing - variable TYPE instead of TREE_TYPE (exp) and similarly for MODE. - -Tue Jul 24 13:50:33 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * cccp.c (collect_expansion): Error if ## at beg or end. - - * c-decl.c (grokdeclarator): Error for long, etc. with nonarith type. - Error for signed or unsigned with floating type. - Error for initialized parm. - - * config.gcc: Make make_var_file depend on host machine, not target. - -Tue Jul 24 13:40:35 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * varasm.c (decode_reg_name): Make TABLE static for non-GCC compilers. - - * c-typeck.c (type_for_size, type_for_mode): Delete from here. - (binary_op_error, shorten_compare, truthvalue_conversion): Likewise. - * cplus-typeck.c: Delete second copy from here. - * c-common: Move above functions to here. - -Tue Jul 24 12:20:04 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * cccp.c (path_include): Fix typo in var name. - -Mon Jul 23 17:46:57 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * config.gcc: Remove redundant assignment to tm_file for 88000. - Fix typo when assigning to make_var_file. - - * function.c (optimize_bit_field): Fix typo in change_address call. - -Mon Jul 23 16:59:27 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * varasm.c (decode_reg_name): Ignore % at beginning of name. - Support extra names defined by ADDITIONAL_REGISTER_NAMES. - * tm-i386.h (ADDITIONAL_REGISTER_NAMES): Define it. - - * dbxout.c (dbxout_init): Handle new macros - ASM_OUTPUT_MAIN_SOURCE_FILENAME and ASM_OUTPUT_MAIN_SOURCE_DIRECTORY. - * sdbout.c (sdbout_filename): Handle ASM_OUTPUT_MAIN_SOURCE_FILENAME. - -Mon Jul 23 16:50:32 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * tm-vax.h (NOTICE_UPDATE_CC): CALL clobbers CC if inside PARALLEL too. - - * vax.md (call_value_pop): Fix typo in argument number. - - * cse.c (cse_insn): Shift's aren't associative if in different - directions, even if same rtx_code. - Try to fold result of associating the operation in case it is now - trivial. - - * jump.c (mark_modified_reg): New function. - (thread_jumps): Look at insns between target of first jump and the - second jump. Mark any registers that they modify and record if they - modify memory. - Don't go past a CODE_LABEL. - If we pass an unconditional jump, follow it. - Use prev_nonnote_insn instead of explicit loop. - (rtx_equal_for_thread_p): Consult recorded information to see if - memory of registers were modified prior to second jump. - * Makefile.in (jump.o): Now needs hard-reg-set.h. - -Sat Jul 21 13:58:16 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * cccp.c (O_RDONLY): Define it if not defined. - - * c-decl.c (finish_decl): No error for nonstatic incomplete array. - -Sat Jul 21 08:24:04 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * alliant.md (call patterns): Function address must be memory operand. - * convex.md, m68k.md, mips.md, ns32k.md, tahoe.md, vax.md: Likewise. - -Thu Jul 19 16:06:02 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * cccp.c (path_include): New function. - (main): Call that to handle CPATH envvar. - - * varasm.c (assemble_variable): Error if size exceeds 2**32-1. - - * emit-rtl.c (init_emit_once): Pass write_symbols to this function - (init_emit): Not this one. All callers changed. - -Tue Jul 17 21:24:08 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * local-alloc.c (update_equiv_regs): Don't replace a register with - an equivalence if the insn making the equivalence has a source - different from the equivalent value. - -Tue Jul 17 16:47:42 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * expr.c (emit_block_move): Allow movstr* to fail. - -Tue Jul 17 15:19:18 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * emit-rtl.c (change_address): Don't call memory_address if reload - is in progress, not just after it has completed. - -Mon Jul 16 00:34:27 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * jump.c (can_reverse_comparison_p): New function. - (jump_optimize): In if (x) ... else x = 0; reverse comparison - if second operand of IF_THEN_ELSE is PC; use new function to - validate the reversal. - (jump_back_p): Use new function to see if safe to reverse comparison. - -Sun Jul 15 17:03:31 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * jump.c (jump_optimize): Bug in last change; reject uncond jump - where conditional is expected. - - * flow.c (mark_used_regs): Handle autoincrement for *p - followed by q = p+size (neither one dead). - -Sat Jul 14 22:37:45 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * combine.c (subst): Remove (zero_extend (subreg)) around lshiftrt. - Remove (and...) from second arg of shift. - Remove (and...) from around shift. - -Sat Jul 14 21:35:50 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * local-alloc.c (update_equiv_regs): New function. - (local_alloc): Call it. - (block_alloc): Don't handle REG_EQUIV notes here; now done in - update_equiv_reg. - - * calls.c: Include insn-flags.h. - * Makefile.in (calls.o): Likewise. - -Sat Jul 14 13:28:28 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-decl.c (duplicate_decls): Don't set DECL_FRAME_SIZE for builtins. - - * vax.md (SImode bit-field patterns): Use nonmemory_operand. - - * jump.c (jump_optimize): - For if (...) x = 1; else x = 0; x must be integer. - - * gcc.c (default_compilers): Pass -P to cpp. - -Thu Jul 12 23:38:14 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * stor-layout.c (layout_record): Handle BITFIELD_NBYTES_LIMITED. - - * sparc.md (call recognizers): Don't allow address arithmetic. - -Thu Jul 12 21:47:45 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * emit-rtl.c (change_address): If reload has completed, don't call - memory_address. Instead, abort if address is not valid. - -Thu Jul 12 20:41:32 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * calls.c (emit_call_1): Handle vax, without call and call_value. - -Thu Jul 12 20:39:33 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * cse.c (merge_equiv_classes): New function, from record_jump_equiv. - (record_jump_equiv): Use new function. - (gen_lowpart_if_possible): New function, based on gen_lowpart. - (cse_insn): In some cases of (set (subreg (FOO) 0) (BAR)), note - that (subreg BAR) is an equivalent of FOO. - * integrate.c (expand_inline_function): Likewise. - - * combine.c (subst): Check for constant in merge of shift into - ZERO_EXTRACT. - (gen_lowpart_for_combine): Look for SIGN_EXTEND or ZERO_EXTEND: - - * emit-rtl.c (gen_lowpart, gen_highpart): If passed a hard register, - return a new rtx for it in the proper mode, rather than a SUBREG. - -Wed Jul 11 17:05:04 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * cse.c (cse_insn): If already have a REG_WAS_0 note, don't make - another one. - Rework some loops on SETs to eliminate duplicate code and clean up - a bit. - - * rtlanal.c (refers_to_regno_p, reg_overlap_mentioned): Allow these - to work on pseudos as well as hard registers. - - * optabs.c (emit_no_conflict_block): Use reg_overlap_mentioned - to see if register is mentioned in insn. - -Wed Jul 11 16:56:01 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * jump.c (jump_optimize): Don't optimize jumps to store-flags - if after register allocation. And don't do it if memref is used. - -Wed Jul 11 16:12:55 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * emit-rtl.c ({next,prev}_nonnote_insn, prev_label, prev_cc0_setter): - New functions. - ({next,prev}_{real,active}_insn, next_label): Rework to allow - argument of zero; return zero in that case. - (next_active_insn, prev_active_insn): If reload is not yet complete, - do the same thing as next_real_insn and prev_real_insn. - (next_cc0_user): Fix some bugs and typos. - - * rtlanal.c (reg_mentioned_p): Allow searches for labels to work. - -Wed Jul 11 12:25:27 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-decl.c (duplicate_decls): In prev fix, use TREE_PUBLIC both times. - -Tue Jul 10 22:54:31 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * rtl.def (trap): New code. - -Tue Jul 10 17:48:26 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * tree.c (integer_zerop, integer_onep, integer_all_onesp): Look inside - a NON_LVALUE_EXPR. - (real_zerop, real_onep, simple_cst_equal): Likewise. - -Tue Jul 10 17:05:50 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-parse.y, objc-parse.y, cplus-lex.c (yylex): - Terminate token_buf after integer. - -Mon Jul 9 15:22:22 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * c-decl.c (duplicate_decls): Correct test for extern followed by - static function declaration. - -Mon Jul 9 14:13:06 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-decl.c (grokdeclarator): Move warning and error - about initializer with extern to the same place. Do one or the other. - - * rltanal.c (reg_mentioned_p): Don't look inside a CONST_DOUBLE. - -Sun Jul 8 14:12:21 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * toplev.c (pedwarn, pedwarn_with_file_and_line, pedwarn_with_decl): - New functions. - (flag_pedantic_errors): New variable controls them. - * c-decl.c, c-parse.y, c-typeck.c: Use new functions for many warnings. - * varasm.c: Likewise. - * gcc.c (default_compilers): Pass -pedantic* to cc1, cpp, etc. - * cccp.c (pedwarn): New function. Many calls to `warning' changed. - - * c-common.c (c_expand_expr_stmt): New function. - Error about incomplete type moved here. - * expr.c (expand_expr): Error deleted from here. - * c-parse.y: Use c_expand_expr_stmt where suitable. - - * flow.c (propagate_block): Set following_insn_dead on insn after test. - (mark_used_regs): Test that var; don't call insn_dead_p here. - -Fri Jul 6 13:05:01 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-typeck.c (build_indirect_ref): - No error if result is incomplete array. - - * expmed.c (store_bit_field, extract_bit_field): New arg TOTAL_SIZE. - Don't extract a bigger unit from memory than this. - * expr.c: Callers changed. - (store_field): New arg TOTAL_SIZE; callers changed. - - * out-ns32k.c (print_operand_address): Changes from Ian Dall. - * xm-ns32k.h: Use built in alloca. - * ns32k.md (ashlsi3): Don't forget to return a value. - (movsf): Output floating constants only if GAS_SYNTAX. - (call, call_value): Support JSR_ALWAYS. - Change handling of bsr if GAS_SYNTAX. - (bit test patterns): Use g constraint for op1 and rm for op0. - -Thu Jul 5 21:53:10 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-typeck.c (build_c_cast): Don't do implicit arithmetic conversions. - * fold-const.c (fold): Don't combine two conversions if one is - signed and the other is unsigned. - * integrate.c (copy_parm_decls): Finish making last change. - -Thu Jul 5 18:26:03 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * expr.c (safe_from_p): If EXP is readonly memory, any memory location - is safe from it. - -Thu Jul 5 15:05:19 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * gnulib2.c (__fixunsdfsi): Change > to >=. - - * c-decl.c (start_struct, start_enum): Set C_TYPE_BEING_DEFINED. - (grokdeclarator): Don't warn of array if elt type being defined. - - * c-typeck.c (build_conditional_expr): Handle ((void *) 0). - Allow 0 versus function pointer. - -Thu Jul 5 08:05:09 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * cse.c (cse_insn): If machine has post-increment, don't associate - PLUS operations if they are both adding the same constant that is - a power of two. Similarly for post-decrement. - -Wed Jul 4 19:04:20 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * flow.c (mark_used_regs): Don't scan a comparison if the following - insn that uses the cc's is dead. - - * flow.c (propagate_block): If cc-using insn is dead, so is previous. - - * expmed.c (emit_store_flag): New function. - -Wed Jul 4 18:45:04 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * c-typeck.c (common_type, comptypes, default_conversion): - Use TYPE_READONLY in type to indicate const type; use TREE_READONLY - in decl to indicate object will never change. - (build_unary_op, readonly_warning, build_modify_expr): Likewise. - (c_expand_asm_operands): Likewise. - * cplus-class.c (finish_struct_bits): Likewise. - * cplus-cvt.c (build_type_conversion): Likewise. - * cplus-type2.c (readonly_warning_or_error): Likewise. - * cplus-typeck.c (default_conversion, build_unary_op): Likewise - (build_modify_expr, c_expand_asm_operands): Likewise. - - * cplus-cvt.c (popclass): When making INDIRECT_REF, don't set - TREE_READONLY from TYPE_READONLY. - -Wed Jul 4 15:16:37 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * jump.c (jump_optimize): Fix bugs in last change. - -Wed Jul 4 07:52:53 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * expr.c (expand_expr, case COMPONENT_REF): Delete extraneous test - for structure-value stack slot, which no longer exists. - - * reload1.c (bad_spill_regs): Should be static. - - * combine.c (subst, gen_lowpart_for_combine): Propagate - RTX_UNCHANGING_P when making a new MEM. - * c-typeck.c, cplus-typeck.c (build_indirect_ref): ANSI says that - de-reference of pointer-to-const is not readonly so don't set - RTX_UNCHANGING_P. - * explow.c (validize_mem): Use change_address so flags get copied - to new MEM. - * expr.c (convert_move, block_block_{to,from}_reg, emit_move_insn): - Likewise. - (do_tablejump): Set RTX_UNCHANGING_P in MEM accessing address table. - * function.c (optimize_bit_field, instantiate_virtual_regs_1): - Preserve flags when making new MEM. - * loop.c (invariant_p): Memory references to an invariant address - are invariant if RTX_UNCHANGING_P is set. - * recog.c (adj_offsettable_operand): Propagate RTX_UNCHANGING_P - when making new MEM. - * reload.c (find_reloads_toplev): Likewise. - * reload1.c (alter_reg): Stack slot is readonly if pseudo was. - (eliminate_regs): Propagate RTX_UNCHANING_P in new MEM. - * varasm.c (force_const_double_mem): Set RTX_UNCHANGING_P in new MEM. - -Tue Jul 3 21:50:58 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * expmed.c (expand_and): New function. - - * stmt.c (expand_expr_stmt): - If value is volatile, fetch it and then ignore it. - - * expr.c (expand_expr): Error if variable type is incomplete. - - * c-decl.c (grokdeclarator): Don't warn of incomplete array in typedef. - -Tue Jul 3 18:03:24 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * fold-const.c (fold): Convert "(1 << foo) & bar" to "(bar >> foo) & 1" - In "(a & 1) != 0", can convert to simply "a & 1". - * combine.c (subst): Convert branch on sign bit to signed comparison - with zero (possibly adding a SUBREG). - Convert ZERO_EXTRACT of the low-order bit of a right shift into a - ZERO_EXTRACT of the proper bit. - -Mon Jul 2 12:07:08 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * jump.c (jump_optimize): Convert conditionals for storing one - value into a store-flags insn. - - * vax.md (call_pop, call_value_pop): New names for call patterns. - Include the popping explicitly in the rtl. - - * jump.c (jump_optimize): Delete case for condjump followed - by unconditional to same label; was special case of another case. - Switch back to next_active_insn or prev_active_insn in a few cases. - - * function.c (init_function_start): Initialize - frame_pointer_needed to zero. - - * i386.md (tstsf): Clobber reg 0 in SImode. - -Sun Jul 1 14:31:14 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * jump.c: Use next_real_insn instead of next_active_insn. - Likewise for prev_active_insn. USE insns make a difference! - - * function.c (assign_stack_temp): Use largest alignment if BLKmode. - - * stddef.h: Check __SIZE_T also. - - * toplev.c: Include types.h first. - - * i386.md (trunc*2): Don't allow moving symbolic constant to memory. - Use wider move only for symbolic constant. - - * tm-convex.h (LINK_SPEC): Posix link flags. - * tm-convex.h (STARTFILE_SPEC): Posix start files. - * tm-convex[12].h (CPP_SPEC): Posix defines. - * tm-convex[12].h (LIB_SPEC): Posix libraries. - * tm-conv[12]os7.h: New files. - * config.gcc: use tm-conv*os7 if /usr/include/stdlib.h isn't there. - - * xm-convex.h (S_IFMT, S_IFREG): make visible if hidden for posix. - * xm-convex.h (_PROTO): define to keep 8.0 includes from screwing up. - - * tm-convex.h (ASM_OUTPUT_{FLOAT,DOUBLE}, PRINT_OPERAND): - use %e instead of %#g, which is broken or non-posix. - - * tm-convex.h (current_section_is_text): make extern. - * out-convex.c (current_section_is_text): define here. - * tm-convex.h (OVERRIDE_OPTIONS), out-convex.c (override_options): - useless; remove. - * tm-convex.h (CPP_PREDEFINES): remove parsec, long gone from - system includes. - -Sat Jun 30 14:01:52 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-decl.c (pending_xref_error): Fix typo in arg order. - - * cccp.c (do_include): Mention non-ex system headers for -M. - Guess the directory. - (check_macro_name): Should not be static. - - * rtl.def (inline_header): Add a vector at the end. - * rtl.h (ORIGINAL_ARG_VECTOR): New macro. - (RTVEC_ELT): New macro. - * emit-rtl.c (gen_inline_header_rtx): New argument for that vector. - * integrate.c (save_for_inline): Copy arg rtls if nec, then make - an arg vector to put in the header. - (expand_inline_function): Look in that vector for the rtl. - (copy_parm_decls): Likewise. - - * c-decl.c (duplicate_decls): Warn if function declared external - and later static. - -Fri Jun 29 13:29:24 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * cccp.c (handle_directive): Supply missing *. - -Thu Jun 28 21:39:43 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * m68k.md (muldf3 for 68881): Generate fscale if appropriate. - * out-m68k.c (floating_exact_log2): New function. - -Wed Jun 27 17:19:36 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-decl.c (finish_struct): New handling of zero-width bit fields. - Store appropriate data in them like other bit fields. - Don't delete them until after layout. - Don't mess with alignment of following field; set its own. - If PCC_BITFIELD_TYPE_MATTERS, get alignment from type. - * stor-layout.c (layout_record): For zero-width field, if - PCC_BITFIELD_TYPE_MATTERS, alignment does not affect that of structure. - (layout_decl): Don't abort for zero-width if no name. - - * function.c (expand_function_start): - Output ...FUNCTION_BEG note here, after assign_parms. - (init_function_start): Not here. - - * sdbout.c (sdbout_record_type_name): Conditionalize for - SDB_ALLOW_FORWARD_REFERENCES. Don't use typedef names, just tags. - (sdbout_begin_block): Likewise. - (plain_type_1): Likewise. Also move code to output structure size. - (sdbout_symbol): Output the type if not yet output. - Don't output top-level initialized variables yet. - Avoid crash if variable never got any rtl. - Add conditional for SDB_AUTO_NORMALIZE_OFFSET. - (sdbout_toplevel_data, sdbout_queue_anonymous_type): - (sdbout_dequeue_anonymous_type): New functions. - (sdbout_tags): Reverse the list first. - Output enums before other things. - (sdbout_reg_parm): Fake a name if necessary. Use C_REGPARM. - * toplev.c (compile_file): Call sdbout_toplevel_data. - - * c-typeck.c (convert_for_assignment): Disable warnings for pointers - to const and volatile functions. - - * expr.c (expand_expr): Mark variable as used. - -Tue Jun 26 17:05:00 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * tm-sparc.h (LINK_SPEC): Delete spurious `-'. - - * tm-sun3.h (ASM_OUTPUT_FLOAT_OPERAND): Handle minus zero. - (ASM_OUTPUT_DOUBLE_OPERAND): Likewise. - - * stor-layout.c (layout_type): Check TYPE_NO_FORCE_BLK in union fields. - -Tue Jun 26 01:48:57 1990 Michael Tiemann (tiemann at cygnus.com) - - * tree.c (dump_tree_statistics): Dummy function. To be filled in - later when we decide what tree statistics should be measured. - (build): Now ok to take arguments of length 1. `build1' cannot be - used to allocate 's' tree nodes whcih might have length 1. - - * All GNU C++ files updated to 1.37.2 (alpha 2). NOTE: cplus-decl.c - needs to be fixed to not us RTL. I'm leaving this file in its - current state so that the GNU C++ compiler at least compiles. - - * All SPARC files: modified to use registers %f30 and %f31 as - temporaries for holding floating-point zero. Used to use %f0 and - %f1, which made it impossible to compare function return values with - zero. - -Mon Jun 25 16:54:13 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * function.c (init_function_start): New args give file/line for first note. - * c-decl.c (store_parm_decls): Pass them. - * integrate.c (output_inline_function): Pass dummies for them. - * final.c (final_start_function): For sdb, don't output a line number, - just set last_linenum. - - * c-parse.y (hash, is_reserved_word): New keyword __label__. - - * stddef.h: Check _T_SIZE as well as _SIZE_T. - -Sun Jun 24 16:09:17 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * expr.c (expand_expr): Do preserve_temp_slots for TARGET_EXPR. - -Sat Jun 23 09:52:40 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * genpeep.c (gen_peephole): Ignore USE and CLOBBER insn as well as - NOTE when matching peephole. - -Fri Jun 22 17:40:56 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-typeck.c (process_init_constructor): Set up TREE_PURPOSE - in record constructor elements. - - * cexp.y (exp1): If pedantic, warn about commas. - (tokentab2): Add entries for ++ and --. - (yylex): Error if those are used. - - * c-decl.c (lookup_tag): For wrong kind of type, just set flag. - (shadow_tag): Clear the flag. - (pending_xref_error): Print the error message here if flag set. - * c-parse.y (setspecs): Call that. - - * calls.c (emit_call_1): Use call_pop and call_value_pop insns - to record when the called function pops its args. - -Fri Jun 22 16:43:12 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * local-alloc.c (wipe_dead_reg): Remove REG_DEAD note for unset reg. - - * tm-sparc.h: Replace FIX_FRAME_POINTER_ADDRESS with - INITIAL_FRAME_POINTER_OFFSET. - - * tm-vax.h (RTX_COSTS): Show shifts are relatively expensive. - -Fri Jun 22 15:05:24 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * Makefile.in (GEN): New variable. - (P): New variable. - (cc1, cc1plus, cc1obj): Use $(P). - - * cccp.c (check_macro_name): New subroutine taken from do_define. - (do_define, do_undef): Use this. - (do_undef): Warn if junk follows name. - (handle_directive): Always ignore empty directive. - Warn if \f or \v in directive. Error for malformed directive name. - - * tree.h (BUILT_IN_NEXT_ARG): Define it. - * c-decl.c (init_decl_processing): Declare __builtin_next_arg. - * expr.h (current_function_arg_offset_rtx): Declare it. - * function.c (assign_parms): Set that variable at end. - * expr.c (expand_builtin): Implement __builtin_next_arg. - * stdarg.h (va_start): Use __builtin_next_arg. - - * c-decl.c (grokdeclarator): Check for TRADITIONAL_RETURN_FLOAT. - -Fri Jun 22 07:07:53 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * final.c (final_scan_insn): Put label for jump table in same section - (read-only data) as jump table. - - * loop.c: Allow tm.h to define ..._BENEFIT and COPY_PENALTY. - -Wed Jun 20 13:03:53 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * tm-apollo68.h (FUNCTION_ARG_PADDING): Never pad. - (STACK_BOUNDARY): Make it 32. - (CPP_SPEC): Add spaces. Define _APOLLO_SOURCE if not -ansi. - - * c-common.c (check_case_value): New function. - * c-parse.y (stmt, when parsing case): Use that. - Add new rule for case range. - - * reload1.c (reload_inheritance_insn): New variable. - (reg_reloaded_insn): New variable. - (choose_reload_regs): Update those variables. - (emit_reload_insns): Use them to remove deaths from insns - that used input reloads. - (reload_as_needed): Clear reg_reloaded_insn when necessary. - - * m68k.md (ashlsi3, lshlsi3): Use add to self to shift one bit. - - * dbxout.c (STAB_CODE_TYPE): New macro defined as type for stab codes. - Use in place of enum __stab_debug_code. - -Tue Jun 19 22:56:40 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * expr.c (expand_increment): For preincrement, don't load value twice: - use TEMP as input to addition. - -Tue Jun 19 06:53:13 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * explow.c (adjust_stack, anti_adjust_stack): Use expand_binop instead - of gen_{add,sub}2_insn since the latter will abort if the constant is - out of range for the machine. - -Tue Jun 19 00:35:16 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * local-alloc.c (post_mark_life): Don't decrement DEATH - if it equals BIRTH. Don't ever increment DEATH. - - * varasm.c (output_constructor): Discard non_lvalue_expr, not nop_expr. - Handle missing values. Use field in the tree_list, if any. - (output_addressed_constants): Don't die if value is missing. - * c-typeck.c (process_init_constructor): Handle index and field specs. - * c-parse.y (initlist): Parse them. - -Mon Jun 18 15:58:48 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-decl.c, cplus-decl.c (duplicate_decls): - Types don't "match" if one is error. - - * c-parse.y (label_decl): Use new keyword __label__, not colon. - - * c-parse.gperf (__label__): New keyword. - - * mips.md (probe): Make a single insn, just a memref. - -Mon Jun 18 14:27:55 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * loop.c (loop_optimize): Set max_luid to last luid + 1, as documented. - - * local-alloc.c (qty_clobber): New variable. - (local_alloc): Allocate and initialize it. - (reg_is_set): Set qty_clobber for a clobber of a pseudo used only - in this insn. - (find_free_reg): Pass qty_clobber to post_mark_life. - (post_mark_life): If CLOBBER if non-zero, register isn't live after - its death insn. - - * integrate.c (expand_inline_function): Don't call try_constants on - an insn that sets CC0 until we have processed the next insn. Then - call it on both. This is because the recognizer for these insns - may want to look at the user of CC0. - -Mon Jun 18 13:25:59 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * mips.md (ashlqi3, ashlhi3, one_cmplqi2, one_cmplhi2): Deleted. - (ashlsi3, ashrsi3, lshrsi3, neg*, one_cmplsi2): Simplified. - Don't output comments. Use more specific predicates. - - * mips.md (movsf, movdf): Use L, M codes to avoid #ifdef's. - Also simplify and don't output comments. - (anonymous patterns for those insns): Deleted. - (loading floating constant): New patterns added. - (move qi to si pattern): Deleted; ridiculous. - (movdi, movsi, movhi, movqi): No need to check for moving reg to self. - - * mips.md (nop): Use .set noreorder to placate assembler. - -Sun Jun 17 20:01:38 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * gcc.c (set_spec): Don't use `name' for both old spec and name of - spec. Use new var old_spec for the former use. - Don't use (char *) 0 for null spec; use a null string instead. - - * jump.c (jump_optimize): Don't special-case deleting an ADDR_DIFF_VEC. - Merge code to detect trivial ADDR_VEC and ADDR_DIFF_VEC. - (mark_jump_label): Don't count the use of a vector table label in - ADDR_DIFF_VEC. - (delete_insn): Can now handle ADDR_DIFF_VEC. - (delete_labelref_insn): New function. - (redirect_tablejump): Call new function to delete insn that references - the jump table. - -Sun Jun 17 01:19:26 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * genemit.c (gen_expand): Don't generate `operands' if size is 0. - - * tm-i860.h (GO_IF_LEGITIMATE_ADDRESS): Displacement must be multiple - of the alignment of the operand. - - * i860.md (signed bit field recognizers): Don't shift by >31 bits. - - * out-i860.c (output_delayed_branch): Pass register properly to - load_opcode. - - * mips.md (general/fp reg move patterns): Use codes L, M, D. - (movdi): Likewise. And don't output useless comments. - Use the assembler temp reg for non-offsettable address. - (movsi, movhi, movqi): Output nothing for move from reg to itself. - Output li to load a constant. Use `move' instead of `add'. - Don't output useless comments. - (load-address pattern): Deleted; handled by addsi3 pattern. - - * mips.md (addsi3, mulsi3): Make both input predicates arith_operand - since they are commutative. - (andsi3, iorsi3, xorsi3): Likewise. - - * tm-mips.h (MOST_SIGNIFICANT_WORD, LEAST_SIGNIFICANT_WORD): New. - - * tm-mips.h (PRINT_OPERAND): New codes D, L, M. - * mips.md (anddi3, iordi3, xordi3): Use earlyclobber to stop overlap. - Use new print code D. - - * mips.md (andsi3, iorsi3, xorsi3): Make predicates more specific. - (andhi3, ..., andqi3, ...): Patterns deleted. - (patterns for nor): New anonymous patterns. - * out-mips.c (uns_arith_operand): New function. - - * mips.md (trunc*, zero_extend*, extend*, fix_trunc*, float*): - Use more specific predicates. - - * mips.md (addhi3, ..., addqi3, ...): Patterns deleted. - (addsi3, subsi3, mulsi3, divsi3): Make predicates more specific. - Delete useless comments from assembler code. - Use more generic op codes rather than special cases such as addiu. - (divmodsi4, udivmodsi4, udivsi3, modsi3, umodsi3): New patterns. - (abssf2, absdf2): New patterns. - -Sun Jun 17 06:56:10 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * cse.c (COST, rtx_cost, make_regs_eqv): Indicate that hard registers - in fixed_regs are even cheaper than pseudos. - - * function.c (instantiate_virtual_regs_1): If valid, replace PLUS - whose second operand would be zero with its first operand. - -Sun Jun 17 00:17:03 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * sdbout.c (sdbout_symbol): Get right regno for var-length object. - - * combine.c (simplify_set_cc0_and): Strip SUBREGs, but only if - they truncate. Handle ASHIFTRT like LSHIFTRT. - (try_combine): Call simplify_set_cc0_and in all those cases. - (subst): Handle (zero_extract (subreg (lshift (reg )))). - -Sat Jun 16 23:11:52 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * tree.c (get_narrower, get_unwidened): Bit field test was backwards. - -Sat Jun 16 19:07:16 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * fold-const.c (fold): Fix typo in test for distributing binary - operator over conditional and compound expressions. - - * genoutput.c: Remove vestiges of obsolete and never used - INSN_MACHINE_INFO. - - * rtl.def (MATCH_PARALLEL): Add new RTL code. - * genconfig.c (walk_insn_part): Support MATCH_PARALLEL. - * genemit.c (max_operand_1): Likewise. - (gen_exp): Just write operand for MATCH_PARALLEL. - (gen_expand, gen_split): Support MATCH_PARALLEL. - * genrecog.c (walk_rtx): Add support for MATCH_PARALLEL. - * genoutput.c (scan_operands): Suppport MATCH_PARALLEL - like MATCH_OPERATOR. - * genpeep.c (match_rtx): Add code to support MATCH_PARALLEL. - Don't write unnecessary cast to `rtx'. - * genrecog.c (add_to_sequence): Simplify handling of mode. - Support MATCH_PARALLEL. - - * expr.c (move_block_{to,from}_reg): Support load/store multiple. - * function.c (instantiate_virtual_regs_1): If can't substitute - new pseudo for virtual register, try doing the substitution - globally throughout the entire insn. This lets load/store multiple - insns refer to virtual registers in their addresses. - - * genrecog.c (write_split_tree, write_split_subroutine): Deleted. - (break_out_subroutines, write_subroutine, write_tree): Accept - parameters that indicate whether we are making gen_split or gen_recog. - (main): Pass new parameters to break_out_subroutines and write_tree. - - * final.c (final_scan_insn): Process insns that set CC whenever a - REG_CC_STATUS note is found; not only JUMP_INSNs can use CC. - When scanning REG_CC_STATUS insns, set cc_prev_status from cc_status - each time. - - * recog.c (validate_replace_rtx): New function that tries to - replace all occurrences of an object within an insn and see if the - resulting insn is valid. - -Thu Jun 14 06:58:26 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * optabs.c (emit_no_conflict_block): Write REG_NO_CONFLICT notes all - all insns in the block that modify the output. Write them on the - final insn even if we don't put a REG_EQUAL note there. - - * stmt.c (expand_return): Only distribute return down a conditional - expression if tail recursion is possible in a branch. - - * expr.c (expand_expr): Remove obsolete reference to when we had - a shared structure-value slot. - - * jump.c (get_label_before, get_label_after, follow_jumps): No longer - static. - * rtl.h: Define them. - -Mon Jun 11 17:35:40 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * loop.c (INSN_LUID): Check for INSN_UID above the area that we - know about. - (loop_optimize): Cannot use INSN_LUID as lhs. - (scan_loop): If first jump is to label made by loop, we can't - tell if it is in range or not, so reject loop. - Reject loop if SCAN_START was an insn previously made by loop since - we won't know its luid. - Only call loop_reg_used_before if argument has known luid. - Mark partial invariant as global if its insn was made by loop. - (ignore_some_movables): Don't assume all invariants have luids. - (strength_reduce): Use no_labels_between_p instead of - labels_in_range_p. - Don't look at luid of insns for which one doesn't exist. - (valid_initial_value_p): Reject initializations in insns whose - luid we don't know. - - * loop.c (product_cheap_p): Put all our rtl into a separate obstack - and free memory from it. If we use current_obstack, we may free - memory allocated by gen_reg_rtx, which must be preserved. - - * c-common.c (rewrite_for_merged_ref): A non-zero one-bit signed field - is -1, not 1. - * c-typeck.c, cplus-typeck.c (build_binary_op_nodefault): If can't - merge comparisons, don't use result of rewrite_for_merged_ref; - comparisons with zero are more efficient. - - * protoize.c (main): Don't declare as extern. - - * c-aux-info.c (gen_aux_info_record): Don't declare extern. - - * genemit (gen_split): Rework to fix numerous bugs and typos. - - * function.c (assign_parms): Avoid generating (PLUS foo (const_int 0)). - -Wed Jun 6 20:03:31 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * gencodes.c (main): Count a code number for DEFINE_SPLIT. - - * rtlanal.c (note_store): Pass SUBREG of a hard register to function. - (reg_overlap_mentioned_p): Handle receiving SUBREG of hard register. - * integrate.c (mark_stores): Likewise. - * local-alloc.c (reg_is_set, reg_is_born): Likewise. - * reload1.c (mark_not_eliminable): Likewise. - - * loop.c (move_movables): Don't blow up if moving last real insn - in function. - -Wed Jun 6 19:44:04 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * gcc.c (default_compilers): Pass -traditional before -f*. - Delete -gg option. - -Sun Jun 3 22:44:12 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-decl.c (grokdeclarator): Warn about extern with initializer. - -Sun Jun 3 22:32:19 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * genrecog.c (main): Don't call write_tree with null if no insns - were in file. - -Sat Jun 2 21:49:24 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * expr.c (expand_expr, cases ABS_EXPR, MAX_EXPR, MIN_EXPR): Use target - unless zero or safe_from_p rejects it. - (expand_expr, conditional cases): Likewise. - -Sat Jun 2 14:46:18 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-decl.c (grokdeclarator): Handle const and volatile with parm - specified as function type. - -Fri Jun 1 16:13:39 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * rtl.def (DEFINE_FUNCTION_UNIT): Change specifications so - it now is one per operation type, rather than one per - function unit. - * genattr.c (write_units): Write out new function names and - function unit table structure. - * genattrtab.c (struct function_unit_op): New structure. - (struct function_unit): Updated for new definition of - DEFINE_FUNCTION_UNIT. - (SIMPLIFY_TEST_EXP): New macro to reduce number of function calls - to simplify_test_exp. Replace all call to the function with - uses of the macro. - (check_attr_test, make_alternative_compare): Show that EQ_ATTR with - attribute of "alternative", MATCH_OPERAND, and comparison cases can't - be simplified. - (expand_units, gen_unit, write_function_unit_info): Support new - meaning of DEFINE_FUNCTION_UNIT. - (simplify_test_expr): Rework AND and IOR cases to reduce rescans. - Once an expression has been simplified, set RTX_UNCHANGING_P so - we won't try simplifying it again. Don't do this if INSN_CODE == -2. - (write_attr_set): Don't make a recursive call if we know that - the test we are writing will always be false. Also clean up a bit. - (main): true_rtx and false_rtx don't need to be simplified. - Write gen_attr_... routines before special routines. - -Fri Jun 1 14:17:48 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * tm-sparc.h (FUNCTION_PROLOGUE, FUNCTION_EPILOGUE): - Round frame size to multiple of STACK_BOUNDARY. - -Fri Jun 1 09:38:51 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * optabs.c (emit_no_conflict_block): Place REG_NO_CONFLICT notes on - insn that contains REG_EQUAL note instead of insn doing computation. - - * cplus-decl2.c, cplus-lex.c: Rename gettime to get_run_time. - Likewise for my_gettime to my_get_run_time. - - * Makefile.in (varasm.o, calls.o, explow.o, integrate.o, loop.o): - These do not depend on insn-codes.h. - * function.c: Explicitly include insn-codes.h to make it clear that it - is needed for the values of the CODE_FOR_... macros. - -Thu May 31 12:59:28 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * gnulib2.c (__trampoline): New function. - * Makefile.in (LIB2FUNCS): Compile it. - * tm-m68k.h (TRAMPOLINE_ALIGN): Define it. - * function.c (trampoline_address): Handle extra alignment. - * tm-m68k.h (TRAMPOLINE_TEMPLATE, INITIALIZE_TRAMPOLINE): - Redefine to transfer via __trampoline. - (TRANSFER_FROM_TRAMPOLINE): Define it, for gnulib2.c. - - * fold-const.c (fold): Preserve sign on constant when other terms - cancel (after call to split_tree). - -Thu May 31 12:39:51 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * expr.c (preexpand_calls): Ignore BLOCK to avoid infinite recursion. - - * function.c (assign_parms): Fix typo getting mode of result. - - * cse.c (cse_basic_block): Don't go past TO if it is target of - followed jump. - -Wed May 30 21:31:16 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-parse.y (fndef, nested_function, notype_nested_function): - Use YYERROR1 instead of YYERROR. - (YYERROR1): New macro. - * cplus-parse.y, objc-parse.y: Likewise. - -Tue May 29 21:53:19 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * optabs.c (expand_float): Don't use hard reg as intermediate. - - * c-parse.y, objc-parse.y (yylex): Fix typo checking for ERANGE. - * cplus-lex.c (yylex): Copy current code for ERANGE from c-parse.y. - - * toplev.c (get_run_time): Renamed from gettime. - -Mon May 28 15:47:48 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * expr.c (emit_push_insn): Don't push by pieces if alignment - forces use of small pushes that do problematical padding. - - * tm-sparc.h (SELECT_SECTION): Use TREE_SIDE_EFFECTS. - (STACK_POINTER_OFFSET): Now 68; does not include REG_PARM_STACK_SPACE. - (REG_PARM_STACK_SPACE): Now takes arg and has value. - (ACCUMULATE_OUTGOING_ARGS): Define this. - (FUNCTION_PROLOGUE, FUNCTION_EPILOGUE, EXIT_IGNORE_STACK): Use - current_function_outgoing_args_size, not ..._pretend_... - (INITIALIZE_TRAMPOLINE): Use size_int. - - * varasm.c (make_decl_rtl, make_function_rtl): Run ENCODE_SEGMENT_INFO - if it is defined. - - * tree.def (BIND_EXPR): Add operand, which holds the BLOCK. - * expr.c (expand_expr): When BIND_EXPR is seen, flag the BLOCK. - * dbxout.c (dbxout_block): Test the flag in the BLOCK. - * sdbout.c (sdbout_block): Likewise. - * symout.c (symout_function): Likewise. - * c-parse.y (stmt expr rule): Corresponding change. - -Sun May 27 20:53:16 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * caller-save.c (save_call_clobbered_regs): Correctly mark registers - live for multi-word pseudos. - -Sat May 26 13:42:04 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * sdbout.c (sdb_begin_function_line): Now -1 if not in use. - (sdbout_end_function): Set it to -1. - - * tree.def: Rename EXIT_STMT to EXIT_EXPR and likewise for LOOP_STMT. - Also LET_STMT to BIND_EXPR, and GOTO_STMT, LABEL_STMT, RETURN_STMT - to ..._EXPR. - (struct tree_stmt, struct tree_if_stmt, struct tree_bind_stmt): - (struct tree_case_stmt): Types deleted. - - * tree.c (make_node, copy_node): Treat 's' like 'e' for size of node. - In make_node, make BLOCK and BIND_EXPR savable. - * expr.c (expand_expr): Rename, and use TREE_OPERAND to get body. - * cplus-init.c (build_vec_delete): Likewise, and build appropriately. - * print-tree.c (print_node): No special handling for these and IF_STMT. - * stmt.c (warn_if_unused_value): Likewise. - - * tree.def (BLOCK): New tree code for binding blocks. - * tree.h (BLOCK_VARS, BLOCK_TYPE_TAGS): - (BLOCK_SUBBLOCKS, BLOCK_SUPERCONTEXT): Renamed from STMT_... - (STMT_...): Except for those, all deleted. - (BLOCK_CONTROLLER): Points to corresponding BIND_EXPR, if any. - (BLOCK_CHAIN): New macro. - * tree.c (build_block): Renamed from build_let. - (decl_type_context, decl_function_context): Corresponding change. - * print-tree.c (print_node): Likewise. - * c-decl.c, cplus-decl.c (poplevel): Likewise. - * integrate.c (copy_decl_tree): Likewise. - * function.c (setjmp_protect, uninitialized_vars_warning): - (instantiate_decls_1): Likewise. - * c-parse.y, cplus-parse.y, objc-parse.y (stmt expr rule): Likewise. - * dbxout.c (dbxout_block): Expect only BLOCKs in this tree. - Ignore those with controllers that are not marked used. - * sdbout.c (sdbout_block): Likewise. - * symout.c (symout_function): Likewise. - - * tree.def: Delete IF_STMT, COMPOUND_STMT, WITH_STMT. - * expr.c (expand_expr): Delete handling of IF_STMT. - * tree.c (build_if, build_loop, build_case, build_goto): Deleted. - (build_expr_stmt, build_asm_stmt, build_return, build_exit): Likewise. - (build_compound): Likewise. - * cplus-init.c (build_vec_delete): Use COND_EXPR instead of IF_STMT. - -Sat May 26 13:23:12 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * calls.c (struct arg_data): Add new fields slot_offset and stack_slot. - (expand_call): Compute both location of start of stack slot and the - place in the stack slot where the first byte of the argument will be - placed. - Use stack_slot when loading a BLKmode object into registers. - When loading into registers, don't check reg_parm_seen, just look - at args[i].reg. - (expand_call, store_one_arg): Save and restore stack slot starting - from beginning of slot, not begining location where arg is stored. - (store_one_arg): After calling emit_push_insn, argument is really - at arg->stack_slot instead of arg->stack because if we want to - load it into registers, we include any padding. - -Sat May 26 01:37:27 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * tree.h (struct tree_type): Rename sep=>minval, sep_unit=>precision. - - * tree.c (init_obstacks, init_tree_codes): init_tree split in two. - * toplev.c (compike_file): Call them. - -Fri May 25 16:40:45 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * stor-layout.c (layout_record): Nuke excess set of DECL_FIELD_BITPOS. - * varasm.c (output_constructor): Bitpos is zero for array (field == 0). - -Fri May 25 00:48:45 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * final.c (final_scan_insn): Restore inadvertent deletion in change - of May 24th. - -Fri May 25 00:13:12 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * print-tree.c (print_node): Print some missing fields for decls. - (print_node_brief): Always print value of integer or real constant. - -Thu May 24 21:28:36 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * fold-const.c (real_zerop): Function deleted; was redundant. - - * tree.h (DECL_OFFSET): Macro deleted. - (struct tree_decl): Field deleted. - - * c-typeck.c (build_unary_op): For ADDR_EXPR of COMPONENT_REF, - use DECL_FIELD_BITPOS and handle non-constant values. - * stor-layout.c (layout_record, layout_union): Likewise. - * expr.c (expand_assignment, store_constructor, expand_expr): Likewise. - * dbxout.c (dbxout_type): Likewise. - * sdbout.c (sdbout_one_type): Likewise. - * c-common.c (merge_component_comparisons, make_merged_ref): Likewise. - * print-tree.c (print_node): Likewise. - * varasm.c (decode_addr_const, output_constructor): Likewise. - * objc-actions.c (build_ivar_list_initializer): Likewise. - * cplus-typeck.c (build_component_addr): Likewise. - And preserve TREE_CONSTANT flag. - (unary_complex_lvalue): Likewise. - - * tree.h (DECL_FUNCTION_CODE): Use the frame_size field, not `offset'. - Now meaningful only if function is built in. - (DECL_BUILT_IN): New flag macro. - * c-decl.c (builtin_function): Set the flag. - (pushdecl, duplicate_decls): Use and set it. - * c-typeck.c, cplus-typeck.c (build_function_call): Test it. - * cplus-decl.c (define_function): Set the flag. - (pushdecl, duplicate_decls): Use and set it. - * expr.c (expand_expr, preexpand_calls): Test it. - - * tree.h (DECL_INCOMING_RTL): New macro. - * function.c (assign_parms): Set up that field. - * dbxout.c (dbxout_parms, dbxout_reg_parms): Don't try to use - DECL_OFFSET for a parm; it is not set. Use DECL_INCOMING_RTL. - (PARM_PASSED_IN_MEMORY): New macro. - * sdbout.c (sdbout_parms, sdbout_reg_parms): Likewise. - (PARM_PASSED_IN_MEMORY): New macro. - - * cccp.c (macarg): When popping frame, free via free_ptr, not buf. - -Thu May 24 18:04:06 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * emit-rtl.c (next_cc0_user): New function. - * recog.c (next_insn_tests_no_inequality): Use next_cc0_user. - * rtl.h: Define next_cc0_user. - - * cse.c (cse_insn): Make canon_reg calls in separate loop over the - SETs to avoid problems when MATCH_DUPs are present in an insn - pattern. - Don't canon CLOBBER in PARALLEL. Instead, canon MEM of CLOBBER, - both within a PARALLEL and standalone. Also, call note_mem_clobbered - only for MEM. - -Thu May 24 13:08:25 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * gnulib2.c (__negdi2): Make this inline for other functions. - -Thu May 24 07:15:04 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * jump.c (no_labels_between_p, prev_real_insn, next_real_insn): - (prev_active_insn, next_active_insn, next_label): Delete from here. - * rtlanal.c (no_labels_between_p): Put here. - * emit-rtl.c (prev_real_insn, next_real_insn, prev_active_insn): - (next_active_insn, next_label): Add to here. - - * c-common.c: Define NULL so NULL_TREE macro will work. - - * cplus-typeck.c (common_parms): Use oballoc and obfree to - avoid external current_obstack. - - * cse.c (fold_cc0, cse_insn): Use HASH macro instead of call to - canon_hash. - (cse_insn): When just recording jump insn, show it doesn't set CC0 - and set it as previous insn. - - * genoutput.c (gen_split): Fix typo in comment. - - * reorg.c: No longer need define next_label and next_real_insn as - extern. - - * toplev.c (rest_of_compilation): Use DELAY_SLOTS instead of - obsolete HAVE_DELAYED_BRANCH; include insn-attr.h. - - * final.c (dbr_sequence_length): Now present #ifdef DELAYED_BRANCHES. - Eliminate references to obsolete DBR_INSN_SLOTS. - (get_attr_length): Support ADJUST_INSN_LENGTH. - (get_attr_length, shorten_branches): Handle a SEQUENCE built for an - insn with filled delay slots. - (final_scan_insn): Avoid unnecessary call to recog_memoized. - Use validate_change instead of assuming replacement of CC0 by - STORE_FLAG_VALUE or const0_rtx is valid. - -Wed May 23 16:32:32 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * out-m68k.c, out-alliant.c (output_btst): - Use next_insn_tests_no_inequality, not next_insns_test_... - * recog.c (next_insns_test_no_inequality): Function deleted. - -Wed May 23 13:26:57 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * expmed.c (store_bit_field): Don't bother making a SUBREG when we - call ourself recursively; the recursive call will just strip it off. - - * reorg.c: Include insn-attr.h before testing DELAY_SLOTS. - (emit_delay_sequence): Assign new INSN_UID to the SEQUENCE. - Chain insns through the sequence via NEXT_INSN and PREV_INSN. - * emit-rtl.c (next_insn, prev_insn): Go inside a SEQUENCE to - find the next or previous insn. - (make_insn_raw): No longer static. - * rtl.h: Define make_insn_raw, prev_active_insn, next_active_insn, - next_insn, and previous_insn. - - * genattrtab.c (write_eligible_delay): Always use "*delay_type"; - annuling only applies to candidate insn, not insn needing slot. - - * tree.c (init_tree): tree_node_counter doesn't exist any more. - (make_node, copy_node, make_tree_vec, build1): No longer set TREE_UID. - -Wed May 23 00:48:57 1990 Michael Tiemann (tiemann at cygnus.com) - - * genemit.c, genextract.c: Add support for MATCH_OP_DUP and - DEFINE_SPLIT. - - * cplus-init.c (build_delete): TREE_SIDE_EFFECTS can be - nonzero when address to be deleted is a cast of something - with side-effects (like a call). - (build_vec_delete): Simplify code now that `make_node' does the - right thing for _STMT nodes. - -Tue May 22 22:59:43 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * cse.c (cse_end_basic_block): Don't crash if NEXT_INSN of - our branch target is zero. - Don't skip scanning first insn after destination label of branch. - - * expr.c (emit_move_insn): Abort if modes differ. - (expand_expr, comparison cases): Use TMODE when convenient. - (expand_expr, case COND): When optimizing (C ? 1 : 0), ensure - we return a result of the correct mode. - - * integrate.c (expand_inline_function): Can't call try_constants for - JUMP_INSN since we may have changed RETURN to jump. - -Tue May 22 22:40:22 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * tree.h (struct tree_common): Delete field `uid'. - (TREE_UID): Macro deleted. - - * c-decl.c (finish_decl): Discard any variable sizes in the decl. - - * calls.c (expand_call): When making reg_notes for const function, - don't test is_const twice, and take account of order of pushing. - -Tue May 22 21:41:48 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * reload1.c (eliminate_regs): Ensure we process pseudo that is first - operand of PLUS. - - * expmed.c (store_bit_field): When stripping a SUBREG, adjust the - bit position to correspond to the change in modes. - - * cse.c (rtx_cost): Use COSTS_N_INSNS macro. - - * cse.c (qty_comparison_*): New vars. - (new_basic_block): Initialize qty_comparison_code. - (fold_rtx): If we see a comparison, check if we have seen the - same comparison before. If so, we know the result. - (record_jump_equiv): Save the comparison being passed in the - qty_comparison_* variables for possible later use by fold_rtx. - (cse_insn): If the current insn doesn't reference cc0, but the - previous insn sets it, delete the previous insn; presumably we - used to test it. - (cse_basic_block): Allocate new qty_comparison_* vars. - - * reload1.c (eliminate_regs): Second arg is now mode of enclosing - MEM, if any, rather than simply flag indicating inside MEM. - Use this mode to determine amount that, e.g., PRE_DEC adjusts by. - - * reload1.c (reload): Set regs_ever_live for a register that couldn't - be eliminated. - * final.c (only_leaf_regs_used): Don't do it here. - - * reorg.c: Eliminate obsolete macros *_REORG_FUNCTION. - Entire file is conditional on #ifdef DELAY_SLOTS. - - * Makefile.in: Use reorg.c instead of dbranch.c. - -Tue May 22 20:40:30 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-decl.c (complete_array_type): Get string elt size in bytes. - -Tue May 22 00:42:07 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * toplev.c (rest_of_compilation): Turn off VERBOSE arg to thread_jumps. - - * objc-parse.y, objc-actions.c: Replaces uses of build with build1 - when being used for 1-operand nodes. - -Mon May 21 23:59:21 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * global-alloc.c (hard_reg_full_preferences): New variable. - (global_alloc): Allocate and initialize it. - (prune_preferences): Include in regs_someone_prefers all words - of multi-word items that have preferences. Don't includes registers - we also prefer unless they are prefered by an allocno that needs - more registers. - (set_preference): Set hard_reg_full_preferences also. - -Mon May 21 21:36:29 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * tree.c (make_node): All ..._STMT nodes have side effects, type void. - -Mon May 21 16:03:23 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * integrate.c (expand_inline_function): Set insns_at_start before - processing parameters since it might be needed during that processing. - Set RTX_INTEGRATED_P in all insns emitted, including labels and - barriers. - Ensure COPY is set correctly when replacing RETURN and avoid - duplicate barriers by calling emit_jump_insn instead of emit_jump. - Call note_stores for JUMP_INSNs and CALL_INSNs in case they have - side-effects we care about. - (copy_rtx_and_substitute): Convert (use (subreg FOO)) to (use FOO). - (subst_constants): Don't crash if we see a SUBREG replaced by a - REG or vice versa; we have no work to do in that case. - Fix typo in case MULT. - - * recog.c (constrain_operands): Call reg_fits_class_p with original - mode of OP, not mode of SUBREG_REG (op) when OP is SUBREG. - -Mon May 21 14:25:14 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * expmed.c (extract_bit_field): Use class of TMODE for simple reg case. - - * flags.h (flag_pic): Declare it. - * tree.h (mode_for_size): Declare it. - * c-tree.h (merge_component_comparisons): Declare it. - -Mon May 21 07:27:12 1990 Michael Tiemann (tiemann at cygnus.com) - - * jump.c (thread_jumps): New function to optimize the case where one - conditional jump jumps to another testing the same condition. This - function usefully optimzies code both before common subexpression - elimination (where it "finds" common subexpressions that cse won't - find) and after loop optimization (where the loop optimizer - introduces new conditional jumps after rearranging loops). - (rtx_equal_for_thread_p): cheaply builds equivalences between - register so that jump threading can be effectively run before cse. - - * emit-rtl.c (init_emit_once): Initialize PIC_OFFSET_TABLE_RTX if - PIC_OFFSET_TABLE_REGNUM is defined. - - * tree.c (build,build1,build_nt): Set TREE_RAISES in addition to - TREE_SIDE_EFFECTS. - ({temp,saveable,perm}_tree_cons): Call `tree_cons' with arguments - instead of calling `make_node' directly. Eventually, `tree_cons' - could be faster than `make_node'. - (get_identifier): Use `bcmp' instead of `strcmp', since it's - faster. Also, test the first letter of each string before calling - the string comparison function. - - * toplev.c: Add new flags FLAG_THREAD_JUMPS and FLAG_PIC. The - former gives better common sub-expression elimination while the - latter tells the compiler to emit position-independent code. - (rest_of_compilation): Thread jumps if requested. - - * stor-layout.c (layout_{record,union}): For loop bodies meant only - for FIELD_DECLs, make sure we have a FIELD_DECL before proceeding. - - * stmt.c (expand_end_case): Use ADDR_DIFF_VEC if FLAG_PIC is - nonzero. - @@ NOTE: This would look a lot nicer if CASE_VECTOR_PC_RELATIVE were - an expression (like zero/nonzero) instead of soley a #define. - (fixup_cleanups): If cleanups emitted no code, don't call - `reorder_insns'. - (expand_decl_cleanup): Return 0 in case we are not in a block - (but instead at top-level). - - * stack.h: New GNU C++ file. - - * rtl.c (REG_NOTE_NAMES): Add REG_CC_STATUS and REG_TAIL_CALL. - * rtl.h: Ditto. Also make external declaration of - pic_offset_table_rtx. - * rtl.def: Add the following new RTL codes: DEFINE_SPLIT, - MATCH_OP_DUP, LO_SUM and HIGH. - - * reorg.c: New file. Performs instruction reorganizations - (primarily branch scheduling) after register allocation. - - * local-alloc.c (local_alloc): If defined, execute - ORDER_REGS_FOR_LOCAL_ALLOC. - - * genrecog.c (struct decision): Extended to handle DEFINE_SPLITs. - (write_tree): Split into three subroutines: `write_tree_1' which - does the main work, `write_tree' which does the original job, and - `write_split_tree' which builds the recognizer for insn splitting. - (add_to_sequence): Handle MATCH_OP_DUP. - (main): Bui.Build both insn->insn_code and insn->insn_list - recognizers. - Also, fixed comment at the top of the file. - * genpeep.c (main): Handle DEFINE_SPLIT. - (match_rtx): Handle MATCH_OP_DUP. - * genoutput.c (main): Handle DEFINE_SPLIT. - * genconfig.c (main): Handle DEFINE_SPLIT and MATCH_OP_DUP. - * genattrtab.c (main): Handle DEFINE_SPLIT. - - * fold-const.c (various places): Use `build1' constructor instead of - `build' constructor whenever possible. - - * final.c (final_scan_insn): If we know the status of the condition - codes at a particular JUMP_INSN (by dint of the fact that it has a - REG_CC_STATUS note), set CC_STATUS to reflect that value. - (only_leaf_regs_used): @@ For some reason the frame pointer register - is not marked live, even when it is. If FRAME_POINTER_NEEDED is - nonzero, set REGS_EVER_LIVE[FRAME_POINTER_REGNUM] to 1. - - * expr.c (emit_library_call): Round ARGS_SIZE.CONSTANT up, not down. - Use new macro MAX to accomplish this. - (safe_from_p): Don't check that EXP is nonzero. Instead, make - caller check (only in one place) that argument to `safe_from_p' is - non-zero. - (expand_expr): In COND_EXPR case, make sure that the predicate is - safe from the two conditions. Lossage occured in a construct of the - form (c = c < 0 ? d : -d). - - * explow.c (plus_constant): Handle LO_SUM rtl. - - * c-typeck.c (build_binary_op_nodefault): If optimizing, try merging - component refs and/or comparisons into larger operations. - - * c-common.c (rewrite_for_merged_ref): New function. Canonicallizes - expressions to be recognizable as candidates for merged - COMPONENT_REF operations. - (make_merged_ref): Builds custom FIELD_DECLs for accessing multiple - bits in a byte simultaneously. - (merge_component_comparisons): Optimize COMPONENT_REFs in - expressions that look like (x.p == y.p && x.q == y.q) or - (x.p != y.p || x.q != y.q). Also optimize (x.p == c1 && x.q == c2), - where C1 and C2 are known constants. - - * c-lang.c (print_lang_statistics): Added new hook function. - Currently does nothing for C. - - * c-convert.c: Use `build1' constructor instead of `build' - constructor whenever possible. - - * cplus-typeck.c (build_binary_op_nodefault): Call this function for - better applicability of the merged component ref optimization. - Also, add more recognized cases. - - * cplus-type2.c (merge_component_comparisons): Code improved, and - moved to c-common.c. - - * cplus-parse.y (operator_name): Recognize `operator,'. - (expr): On parsing ',', call `build_x_compound_expr' instead of - `build_compound_expr'. - (various places): Call `note_decl_list_got_semicolon' instead of - `note_decl_got_semicolon' where object in question is a list instead - of a type. - (component_declarator0): Set CURRENT_DECLSPECS from the bitfield - type. - - * cplus-method.c (hack_wrapper): Rename parameter TYPE to CNAME, - since it is a type name we pass in, not a type. - - * cplus-lex.c (opname_tab): Add `operator,'. - (note_decl_list_got_semicolon): Make notation that a list of - declarations should be considered as having "gotten a semicolon". - (extract_interface_info,interface_strcmp): Commented. - - * cplus-init.c (build_delete): Rest of changes to reimplement new - destructor mechanism. - (build_vbase_delete): Fix bug whereby arrays of length 0 and 1 were - not being correctly handled. Also, where elsements were not being - deleted. Use new destrouct calling convention. - (various places): Change TYPE_HAS_CONSTRUCTOR to - TREE_HAS_CONSTRUCTOR where appropriate. - - * cplus-expr.c (cplus_expand_expr): Use `emit_block_move' to copy - data from RETURN_TARGET to CALL_TARGET in case they do not line up - normally. - - * cplus-decl2.c (finish_file): No need to call `build_vbase_delete' - on top-level objects anymore, since destructors now do the right - thing. - - * cplus-decl.c (finish_function): Implement new destructor - mechanism: destroy virtual baseclass objects if (in$charge & 2) is - nonzero. Deallocate if (in$charge & 1) is nonzero. - - * cplus-cvt.c (build_up_reference): Use TREE_HAS_CONSTRUCTOR, not - TYPE_HAS_CONSTRUCTOR on non-TYPE tree nodes. - (build_up_reference): Only build up references between compatible - types. I.e., don't build a char& to an int object. - (convert_to_aggr): Set the TREE_SIDE_EFFECTS bit if the result is a - CALL_EXPR. - - * cplus-class.c (build_vbase_path): Recover from bad parse errors. - (build_method_call): Implement new ctor/dtor semantics to allow - differentiation between tearing an object down and deallocating it. - This also means that ctors and dtors can now aviod going through the - virtual function table mechanism as they construct/destruct their - objects. - - * ALL GNU C++ files: Use new macro IDENTIFIER_TYPE_VALUE to lookup - type value of an identifier. Also implement related macros - IDENTIFIER_HAS_TYPE_VALUE, and IDENTIFIER_TYPEDECL_VALUE. - - * cplus-cadillac.c (cadillac_switch_source): Change Prototype - declaration to non-prototype declaration. - (readable_p): Ditto. - -Sun May 20 20:23:39 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-typeck.c (c_sizeof): For incomplete type, warn and return 0. - (c_sizeof): Similar. - -Sun May 20 17:20:48 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * emit-rtl.c (gen_highpart): Support SUBREG like gen_lowpart. - -Sun May 20 16:59:17 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-typeck.c (build_c_cast): Warn about pointer-integer casts - where size differs. - - * stor-layout.c (layout_type): Multi-word field doesn't force BLKmode. - - * expmed.c (extract_bit_field): Use mode_for_size for lsb-aligned - fields in regs. No longer knows explicit modes for this. - -Sun May 20 15:12:38 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * Makefile.in: (reload1.o): Now depends on output.h. - - * calls.c (expand_call): No need to set frame_pointer_needed. - - * emit-rtl.c (gen_rtx): If reference to sp, ap, or fp, use - appropriate already-made rtx (e.g., stack_pointer_rtx). - - * expr.c (expand_builtin, case BUILT_IN_ALLOCA): No need to set - frame_pointer_needed. - - * final.c (final_start_function): No longer round size of frame here. - (final_scan_insn): Call constrain_operands with new operand. - - * flow.c (life_analysis): Change test on whether sp is live or - not to depend on FRAME_POINTER_REQUIRED and -fomit-frame-pointer. - (This code may not be relevant any more.) - - * function.c (push_function_context, pop_function_context): No need - to save and restore frame_pointer_needed. - (assign_{outer_,}stack_local): No need to set frame_pointer_needed. - (assign_parms): Likewise. - (init_function_start): Don't initialize frame_pointer_needed here. - - * function.h (frame_pointer_needed): Deleted. - - * genattrtab.c (write_attr_case): Write call to constrain_operands - with new second argument (reload_completed). - - * global-alloc.c (global_alloc): Don't left fp be allocated if we - already know we can't eliminate it. - (find_reg): Argument LOSERS is now a HARD_REG_SET instead of an array. - Precompute HARD_REG_SETs before loop over registers to speed up - allocation. - (retry_global_alloc): Argument FORBIDDEN_REGS is now a HARD_REG_SET. - (check_frame_pointer_required): Deleted; no longer needed. - - * integrate.c (save_for_inline, output_inline_function): No longer - need to save and restore frame_pointer_needed. - - * local-alloc.c (block_alloc): No longer have to worry that having - a stack variable might cause a frame pointer to be needed when it - might otherwise not be. - (find_free_reg): Don't allocate into registers that may be eliminated - later even if they are not FIXED_REGS. - - * output.h: Define reload_completed. - - * recog.c (constrain_operands): Add new argument, STRICT. If zero - and the constraints could not be matched, try again with a less - strict view (i.e., assume that reload will fix those things that - it can). This allows attribute values to be obtained prior to - reload. - Don't call alter_subreg or assume it has been called. Instead, - look inside SUBREGs. - - * reload.c (find_reloads_address{,_1}): Handle an address that - is a MEM; it may have been produced by register elimination. - (find_reloads_address): sp can also be the base register for a - stack slot. - (form_sum): No longer static. - - * reload1.c: Rewrite code that performs frame pointer elimination. Do - it during reload to ensure that all addresses and operands remain - valid; also generalize to support more than one pair of eliminations. - (reg_equiv_stack_slot, bad_spill_regs): New vars. - (forbidden_regs): Now a HARD_REG_SET. - (struct elim_table): New structure to describe register eliminations. - (reload): Start scanning registers after virtual registers. - Initialize reg_equiv_stack_slot for each register. Compute - reg_equiv_{mem,address} during register scan only if not eliminating - registers. - Compute initial default value of frame_pointer_needed. - Round frame size to BIGGEST_ALIGNMENT. - Create obstack for scratch rtl created by register elmination. - Initialize elimination table and spill registers that we know can't - be eliminated. - On each scan of the insns: Reset all elimination entries to initial - offsets, compute reg_equiv_{mem,address}, and see if any potentially - eliminable register changed status. - Try to eliminate registers from each insn unless we know that none - can be eliminated. - Don't complete groups for spill registers from registers that - shouldn't be used as spill registers. - Call reload_as_needed if register eliminations can be done, even if - no reloads are needed. - (new_spill_reg): Don't allow spilling an eliminable register. - Don't set forbidden_regs here. - Indicate something changed if a register that wasn't ever used before - was made a spill register. - (eliminate_frame_pointer, {alter,fix}_frame_pointer_address): Deleted. - (delete_dead_insn): New function. - (alter_reg): Call it. - Always set reg_equiv_stack_slot; if not eliminating registers, also - set reg_equiv_{mem,address}. - (eliminate_regs, eliminate_regs_in_insn): New functions. - (spill_hard_reg): Add new argument, CANT_ELIMINATE. - Set bit for register being spilled in forbidden_regs. - Use new argument instead of seeing if we are spilling fp. - No longer need to have frame pointer just because a reg needs a - stack slot. - (order_regs_for_reload): Set bad_spill_regs to contain those registers - that can't be used for spill registers. - Consider any eliminable register as bad to use as a spill register. - Rework initialization of potential_reload_regs. - (reload_as_needed): Handle register elimination in a similar manner - as function reload. - (gen_input_reload): When generating a reload for a PLUS, first try to - use a three-operand add insn. If that fails, emit two two-operand - insns. - - * rtl.h (FUNCTION_FLAGS_FRAME_POINTER_NEEDED): Deleted; all others - renumbered. - - * stmt.c (expand_decl): No longer have to set frame_pointer_needed - for variable-sized decl. - - * stupid.c (stupid_find_reg): Don't try to allocate an eliminable - register. - - * tm-vax.h (INITIAL_FRAME_POINTER_OFFSET): Add definition. - - * recog.c (next_insn_tests_no_inequality): If no next insn, return 0. - - * print-tree.c (print_node): Set length for TREE_VEC. - - * calls.c (store_one_arg): Set arg->value to location where argument - was placed (either register or stack). - - * recog.c: Needs flags.h (for flag_pretend_float): - * Makefile.in (recog.o): Likewise. - - * expr.c (convert_move): Add missing RETURN statements. - -Sat May 19 14:26:31 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * expr.c (expand_expr, case EXIT_STMT): Return rather than falling - out of switch statement (and into `binop'). - - * cse.c (cse_insn): Allow conditional branches to be turned into - noops when the condition is known false by not calling validate_change. - - * cse.c (fold_rtx): Add LABEL_REF to list of fast RTL codes. - -Sat May 19 12:41:44 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * tm-i386gas.h (ASM_OUTPUT_ALIGN): Use log as arg to .align. - (ASM_OUTPUT_ALIGN_CODE): Likewise. - - * gcc.c (default_compilers): For .cc, pass -g* to cc1. - -Sat May 19 06:51:26 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * tree.c (push_obstacks, pop_obstacks): Put struct obstack_stack - in obstack instead of using xmalloc/free. - (init_tree): Initialize new obstack for {push,pop}_obstacks. - - * tree.c (simple_cst_list_equal): No longer static. - -Fri May 18 19:38:01 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * expr.h (MUST_PASS_IN_STACK): Refine test for case where padding - requirement prohibits passing in register. - -Fri May 18 18:14:18 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * fixincludes: Fix CAT macro in memvar.h. - -Fri May 18 16:13:59 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * expr.c (do_jump): Don't explicitly copy item being tested from - MEM to REG. If needed, this will be done later. - -Thu May 17 14:33:50 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * Makefile.in (bootstrap): Pass LANGUAGES to inner makes. - -Thu May 17 13:57:34 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * fixincludes: Handle _CTRL like CTRL. - -Wed May 16 21:09:42 1990 Richard Kenner (kenner at vlsi1.ultra.edu) - - * fold-const (fold): Two conversions in a row are needed if from an - integer type to a pointer type of a different precision. - -Wed May 16 16:09:47 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * expr.c (expand_expr): Make sure a volatile value is referenced - even if value is ignored. - - * c-typeck.c (truthvalue_conversion): Result COND_EXPR gets type int. - (invert_truthvalue): Simplify COND_EXPR. - -Tue May 15 00:25:03 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * stor-layout.c (layout_record): Do set TYPE_SIZE if size is var. - - * reload.c (push_reload): If insn is an asm, verify that CLASS - is at least possible for the specified mode. - - * c-decl.c (complete_array_type): Compensate for wide string constant. - - * final.c (leaf_function_p): Reject everything if profiling. - - * function.c (optimize_bit_field): Adjust OFFSET if - BITS_BIG_ENDIAN != BYTES_BIG_ENDIAN. - - * expmed.c (store_bit_field, extract_bit_field): Rework the code - to adjust XBITPOS for the size within which to count. - (extract_bit_field): When converting MEM to REG, don't make SUBREG - immediately; fall through and let this happen in the code that - handles original registers of the wrong mode. - -Mon May 14 16:01:13 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * cexp.y (yylex): Ignore carriage return. - * cccp.c (initialize_char_syntax): Likewise. - (newline_fix, name_newline_fix): Likewise. - - * c-common.c: New file. - (combine_strings): Moved here. Fix errors for wide string length. - * c-parse.y, objc-parse.y, cplus-lex.c: Function deleted here. - -Sun May 13 08:08:41 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * integrate.c (subst_constants): Fix typo in case 'E'. - -Sat May 12 17:14:26 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * combine.c (subst): Don't change -(y-x) to x-y for IEEE floats. - Include real.h. - - * cse.c (fold_rtx): Don't simplify float+0, float-0, float*0 - if using IEEE floating point. - Don't simplify float-self even if not IEEE. - * fold-const.c (fold): Likewise. - - * i386.md (trunc**): Use long move if source is constant. - * out-i386.c (PRINT_REG): Handle CODE == 'k'. - - * fixincludes: Use rm -fr to delete before making link. - - * optabs.c (init_optabs): Support MULDI3_LIBCALL, etc. - -Sat May 12 17:04:58 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * cse.c (find_best_addr): Don't modify constant address MEMs; they - are shared. - -Sat May 12 15:17:37 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * ns32k.md (signed bitfield extract): Don't output assembler comment. - -Fri May 11 15:23:55 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) - - * Makefile.in: Don't use $(libsubdir) as a target since it involves - shell `...` constructs. - - * genattr.c (fatal, main): Remove relics of old program name. - * genattrtab.c: Likewise. - - * expr.c (expand_expr, case COND_EXPR): Add missing argument to - operand_equal_p. - - * reload.c (form_sum): Handle case where second operand is - (plus foo (const_int ...)). - - * c-typeck.c (c_sizeof{,_nowarn}, c_alignof): Don't blow up for - ERROR_MARK. - * cplus-typeck.c (c_sizeof{,_nowarn}, c_alignof): Likewise. - - * cplus-typeck.c (c_sizeof{,_nowarn}): Convert from bytes to chars, - since c defines sizeof (char) as 1. - - * loop.c (mark_loop_jump): RETURN, SIGN_EXTEND, and ZERO_EXTEND can - also occur in JUMP_INSN's. - - * reload.c (find_reloads, find_reloads_address): Correct errors where - an arg to find_reloads is "VOIDmode" instead of "0" and vice versa. - (find_reloads_address_1): Likewise. - - * global-alloc.c (global_alloc): Avoid divide-by-zero for allocnos - where all regs have reg_live_length == -2. - -Fri May 11 14:45:06 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * tm-i860.h (ASM_OUTPUT_CASE_LABEL): Align to multiple of 4. - -Thu May 10 23:43:31 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * out-i860.c (single_insn_src_p, strict_single_insn_src_p): - Correct conditions for needing multiple instructions. - (output_delayed_branch): Likewise. - -See file ChangeLog.1. - -Local Variables: -mode: indented-text -left-margin: 8 -fill-column: 76 -version-control: never -End: |