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| author | Jeff Law <law@gcc.gnu.org> | 1997-08-14 23:15:07 -0600 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 1997-08-14 23:15:07 -0600 |
| commit | 37a70e57279e1c5d63c0453daaf0559043c2eac9 (patch) | |
| tree | 981890e4a5ba0eb07721e6ed6b143929a95cfd42 /gcc/ChangeLog.0 | |
| parent | 5f0445a70cf258da6f750c765c8fd9ef5d5fdd73 (diff) | |
| download | gcc-37a70e57279e1c5d63c0453daaf0559043c2eac9.tar.gz | |
Remove old (pre gcc-2.7.2) ChangeLog files.
Remove pre-built into files.
From-SVN: r14799
Diffstat (limited to 'gcc/ChangeLog.0')
| -rw-r--r-- | gcc/ChangeLog.0 | 6671 |
1 files changed, 0 insertions, 6671 deletions
diff --git a/gcc/ChangeLog.0 b/gcc/ChangeLog.0 deleted file mode 100644 index 2e413b1c25f..00000000000 --- a/gcc/ChangeLog.0 +++ /dev/null @@ -1,6671 +0,0 @@ - -Wed Dec 21 02:46:34 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * Version 1.32 released. - - * toplev.c (main): Vax pcc enforces goto-less programming - with fatal error. - - * stmt.c (fixup_memory_subreg): New arg INSN says where to emit insns. - (walk_fixup_memory_subreg): Likewise. All callers changed. - -Tue Dec 20 01:26:56 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-decl.c (start_function): Don't clear TREE_PERMANENT in fn decl. - Make the result decl a permanent node. - (finish_function): Don't clear DECL_RESULT in an inline function. - (duplicate_decls): Don't lose DECL_RESULT or DECL_SAVED_INSNS - or old decl, when defn is followed by redeclaration. - Likewise DECL_ARGUMENTS and DECL_RESULT_TYPE. - - * stmt.c (expand_function_end): End any sequences left unterminated. - - * cse.c (predecide_loop_entry): If "loop" has no label, do nothing. - - * recog.c (asm_noperands): Now return -1 if not that kind of insn. - All callers changed. - * combine.c (check_asm_operands): Calling changes not quite trivial. - * final.c (final): Likewise. - * reload.c (find_reloads): Likewise. - * recog.c (asm_noperands): Other changes: - Loop computing # of SETs in a PARALLEL was off by 1. - Validate all elts of any PARALLEL, to block invalid combinations. - - * ns32k.md (andsi3, andhi3): Make new CONST_INTs; don't clobber old. - - * integrate.c (copy_rtx_and_substitute): When looking in `parm_map', - if our mode mismatches parm's mode, use change_address to extract part. - On BYTES_BIG_ENDIAN machines, adjust the offset. - -Mon Dec 19 23:50:14 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * cexp.y ('/' and '%' ops): If divide by 0, print error, don't die. - -Sun Dec 18 14:03:02 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * toplev.c (main): Avoid shadowing I in inner block. - - * flow.c (propagate_block): The insn at the end of a libcall - may be dead, but the libcall might still be needed if the - hard return reg is used later. Detect this case. - (libcall_dead_p): New fn used to check that the libcall is dead. - - * output-m68k.c, tm-m68k.h (standard_sun_fpa_constant_p): Fn renamed. - -Sat Dec 17 13:23:51 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * stmt.c (expand_end_bindings): error_with_file_and_line => ..._decl. - - * combine.o (try_combine): Accept combination making a valid - asm with operands. - (check_asm_operands): Recognize asm with operands that are valid. - - * loop.c (strength_reduce): Don't accept a reg as a giv - if the reg was made by loop-optimize. - - * stmt.c (balance_case_nodes): A list of 3 always splits in middle. - -Fri Dec 16 17:22:07 1988 Tiemann (rms at sugar-bombs.ai.mit.edu) - - * sparc.md (fetch from constant address): Split into two patterns, - one fixed point and one floating. - (store at constant address): Handle remembered hi-half differently. - Other bug fixes. - (fix_truncsfsi2): Use f1, not f0, as temp. - (fix_truncdfsi2): Don't clear CC_F1_IS_0. - - * output-sparc.c (singlemove_string): Changed handling of case - where op1 is not memory and op0 has varying address. - (output_fp_move_double): Avoid reloading high half address - in the ldd and std cases with constant address. - (make_f0_contain_0): Handle f0 and f1 individually. - - * tm-sparc.h (GO_IF_LEGITIMATE_ADDRESS): CONST is now illegitimate. - - * rtl.c (note_stores): Pass entire SET rtx, not flag, as 2nd arg to FN. - * local-alloc.c (reg_is_set): New type for 2nd arg. - - * Makefile: Comment out cc1plus, since not ready for release. - -Thu Dec 15 16:39:47 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * local-alloc.c (reg_is_set): If a hard reg is clobbered, make it free - before and after the insn. - * stupid.c (stupid_mark_refs): Likewise. - * global-alloc.c (global_conflicts): Likewise. - Use note_stores to call mark_reg_{store,clobber}. - (mark_reg_store): Changed calling conventions - All work done on set/clobbered regs is now done here. - Ignore CLOBBERs. - (mark_reg_clobber): Similar fn, but ignore SETs and handle CLOBBERs. - (regs_set, n_regs_set): New static vars for comm. among the above. - - * stmt.c (expand_asm_operands): call protect_from_queue on operands. - This requires preexpanding the outputs into a vector of rtx's. - - * Makefile (install): cd to $(libdir) before ranlib. - - * c-typeck.c (c_expand_asm_operands): emit_queue at the end. - - * reload.c (find_reloads): Count # alternatives properly for - an asm insn, and check that all operands correspond. - - * loop.c (verify_loop): Reject loops containg setjmps. - * cse.c (cse_main): Don't cse across a call to setjmp. - - * expr.c (expand_expr): Permit any non0 DECL_RTL for a VAR_DECL. - - * stmt.c (balance_case_nodes): Count ranges double when balancing. - -Wed Dec 14 13:50:45 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * final.c (output_addr_const): Output just `-', not `+-'. - - * make-cc1.com: Update filenames changed to `c-'. - * make-cccp.com: Pass needed -D options when compiling cccp.c. - Use /nomap when linking. - - * loop.c (strength_reduce): Paraphrase setting NEW_REG, for Iris cc. - - * output-m68k.c (output_move_const_single): %'s must be doubled twice. - - * loop.c (record_giv): A giv can be replaceable if its uses are - all in the same basic block as its sole setting. - (last_use_this_basic_block): Subroutine to test that. - -Tue Dec 13 13:41:57 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * expr.c (do_store_flag): Allow for COMPARISON to be a const_int. - - * c-decl.c (pushdecl): Warn if type mismatch with another external decl - in a global scope. - - * fixincludes: Fix typo in msg of deleting unchanged file. - - * Makefile (insn-*): Use two-step rules with a separate time-stamp file - to avoid rerunning gen* unless md has changed again. - -Mon Dec 12 13:32:05 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * i386.md (tstsf, tstdf, cmpsf, cmpdf): Use fnstsw, not fstsw. Faster. - - * tm-vax.h (ASM_OUTPUT_REG_POP): Use correct asm syntax for pop insn. - - * combine.c (subst): Handle (subreg (mem)) by making a changed mem. - This avoids producing any (subreg (mem))s except in the special - case they are supposed to be made here. - Also set undo_storage in a couple of cases that forgot to. - - * reload.c (push_reload): When handling (SUBREG (MEM)) for IN, - if there is an OUT, make that a separate reload. - Return its number in `output_reloadnum' - (find_reloads): When pushing matching-reloads, note that the - two operands can have different reload-numbers. - - * tm-3b1.h (ASM_OUTPUT_CASE_END): Test flag on TABLE, not its pattern. - (ASM_OUTPUT_CASE_LABEL): If /i flag set, don't output the dummy entry - since the fetcher-insn will not be off by 2 in this case. - * m68k.md (casesi_2 recognizer): For 3b1 syntax, compensate for that. - -Sun Dec 11 12:51:49 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * genrecog.c (try_merge_2): No longer put all explicit decompositions - before all predicates. Patterns are now tested in the order written. - * vax.md: Move the push-or-move-address patterns to the end. - * m68k.md: Move load-address pattern to end. - Rearrange the special-case movsi patterns. - * ns32k.md: Move special load-reg-17 pattern before movsi. - * i386.md: Move the QI and DI push patterns to logical places. - This should not actually change anything. - - * stmt.c: Add Andy Hitchins's binary-tree case statement code. - (struct case_stmt): case_list field is now a case_node chain. - Replace has_default field with default_label field. - (pushcase, pushcase_range): Build case_list in its new type, - and keep it sorted. - (expand_end_case): Use case_list in its new type. - Count a range of > 1 as two cases, when choosing strategy. - (group_case_nodes, balance_case_nodes): New fns, rearrange case_list. - (node_has_{low,high}_bound, node_is_bounded): New fns test - relationships of values of various case_list tree nodes. - (emit_jump_if_reachable): New fn. - (emit_case_nodes): Emit compares and jumps based on tree of case_list. - - * cccp.c (finclude): Handle nonordinary files (stat doesn't give size). - - * tm-3b1.h (PRINT_OPERAND_ADDRESS): Handle case of breg and no ireg. - -Sat Dec 10 16:30:32 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * sparc.md (movstrsi): Separate define_expand and define_insn; - clobber some pseudos to get temp regs to use in the output. - * output-sparc.c (output_block_move): Use those temp regs, - guaranteed to be free. - - * sparc.md (andcc patterns for bitfields from memory): - Test immed. arg for being in range. - (load DFmode constant): Use %m for output in one case. - * output-sparc.c (singlemove_string, output_move_double): Likewise. - - * output-sparc.c (singlemove_string): New case for mem-to-mem move. - -Fri Dec 9 11:42:15 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * stupid.c (stupid_mark_refs): for CLOBBER of a pseudo, - it is born just before this insn and dies just after. - - * tm-vax.h (NOTICE_UPDATE_CC): For aob, sob insns, forget the cc's. - - * basic-block.h (REG_BLOCK_UNKNOWN, REG_BLOCK_GLOBAL): Move defn here. - * local-alloc.c: Use them. - - * c-decl.c (store_parm_decls): Additional explanatory message - for some prototype mismatches. - - * gnulib.c (SItype): New macro used instead of `int' - for SImode operands and values. Definition is `long int'. - -Thu Dec 8 18:45:48 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * reload.c (operands_match_p): Move the label `slow' so that - it doesn't cause a REG and a SUBREG to be compared wrong. - - * toplev.c (compile_file): Output a label `gcc_compiled.' for GDB. - If new macro ASM_IDENTIFY_GCC is defined, run that instead. - * tm-3b1.h (ASM_IDENTIFY_GCC): Define this as no-op. - -Wed Dec 7 12:20:42 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * i386.md (adddf3): Typo: paren was in a constraint. - - * c-decl.c (grokparms): Avoid duplicate msgs for incomplete type ptrs. - - * gnulib.c: Rename all fns to start with `__'. - * optabs.c, expr.c: Rename all references. - - * gnulib.c (__cmpdi2, __ucmpdi2): New fns. - * optabs.c (emit_cmp_insn): Use them. - - * Makefile (stage*): Ignore errors on the main `mv' (for cc1plus). - Run ranlib if we have to copy gnulib. - - * expmed.c (expand_divmod): Split `label' into several local vars. - - * jump.c (jump_back_p): Do nothing unless cc's were set from integers. - -Tue Dec 6 12:00:21 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-parse.y (extend_token_buffer): Use xrealloc, not realloc. - - * integrate.c (output_inline_function): fix args of expand_function_end - (expand_inline_function): Add missing arg to expand_end_bindings. - - * cse.c (cse_insn): Add missing MODE arg to canon_hash. - - * reload1.c (reload_as_needed): Del. extra arg of choose_reload_targets - (reload): Add missing MODE arg to immediate_operand. - - * expmed.c (expand_mult): Delete extra arg to expand_unop. - - * c-typeck.c (default_conversion): - Add missing NOCONVERT arg to build_unary_op. - - * c-decl.c (duplicate_decls, finish_struct): Add missing arg - KNOWN_ALIGMENT to layout_decl. - * stor-layout.c (layout_record): Likewise. - * varasm.c (assemble_variable): Likewise. - - * dbxout.c (dbxout_init): Add missing LOCAL arg to dbxout_symbol. - - * expr.c (clear_storage): Remove excess arg to emit_move_insn. - - * loop.c (consec_sets_invariant_p): Add parens in hairy if-condition. - - * fold-const.c (fold): Typo, missing `case'. - - * cccp.c (main): Typo handling `-I-' option. - - * tm-i386.h (NO_FUNCTION_CSE): Define this; cse is said to slow - things down with less than 7 calls. - - * stmt.c (fixup_var_refs_insn): When scanning the reg-notes, - don't touch other insns they point at. - - * expr.c (do_jump): Use invert_exp, not reverse_condition, - to invert sense of a jump. - * jump.c reverse_condition now static, invert_exp now global. - -Mon Dec 5 10:51:39 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * tm-sun386.h (ASM_FILE_START): In the .file arg, exclude directories. - - * stmt.c (expand_expr_stmt): If -W, warn if stmt has no side effect. - - * cccp.c (monthnames): Capitalize each name. - - * rtl.def: New code MATCH_OPERATOR. - * genconfig.c (walk_insn_part): Handle it. - * genextract.c (walk_rtx): Handle it. - * genpeep.c (match_rtx): Handle it. - * genrecog.c (add_to_sequence): Handle it. - * genemit.c (max_operand_1, gen_exp, gen_expand): Handle it. - * genoutput.c (scan_operands): Handle it. - (insn_n_alternatives): New array in the output. - (struct data): New slots n_alternatives and op_n_alternatives. - (scan_operands, gen_insn, gen_peephole): - Record op_n_alternatives for each operand. - (output_epilogue): Verify that all operands have same # of alternatives - Also output insn_n_alternatives. - - * reload.c (find_reloads): use insn_n_alternatives to control - the loop over all alternatives. - An empty constraint or empty alternative in a constraint - is always satisfied. - * recog.c (constrain_operands): Likewise. - - * c-decl.c (lang_decode_option): For each -f option, recognize a form - with `no-' and a form without, as contraries. - - * toplev.c (main): Decode -f options using a table - so that each option automatically has a `no-' variant. - - * combine.c (try_combine): Give up if I1 or I2 follows a compare insn. - -Sun Dec 4 12:00:36 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * varasm.c (data_section): If flag_shared, use SHARED_SECTION_ASM_OP - if that is defined. - - * cccp.c (include_default): Add /usr/local/include. - - * Makefile (install): Install the makefile. - - * varasm.c (assemble_external): New fn to declare an external. - (assemble_variable): Output nothing for externals. - * c-parse.y (primary => identifier): Call assemble_variable on 1st use. - - * toplev.c (main): Print version info on stderr, not stdout. - * tm-*.h (TARGET_VERSION): Likewise. - - * tm-isi68.h, tm-news800.h: Rename __HAVE_FPU__ to __HAVE_68881__. - - * sparc.md (seq, etc): Entire page rewritten by Tiemann - to avoid incorrect use of PARALLEL. - * output-sparc.c (gen_scc_insn): Corresponding changes. - -Sat Dec 3 00:03:19 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * gcc.c (do_spec_1): %P is an ANSIfied form of %p: - put __ at beg and end of each predefined macro name. - - * tm-sun3.h (CPP_SPEC): Don't define -Dmc68010, etc., if -ansi. - * tm-sun2.h (CPP_SPEC): Likewise. - - * c-decl.c (shadow_tag): Don't complain if declare a new tag - at top level, or if redeclare a tag. - - * c-decl.c (grokparms): Warn if parm points to incomplete type. - (We already err if its own type is incomplete.) - - * stmt.c (fixup_var_refs_insns): Fix any (SUBREG (MEM)) in REG_NOTES. - (walk_fixup_memory_subreg): New subroutine used for this. - - * integrate.c (copy_rtx_and_substitute): Handle MEM refs to the middle - of a stack-parm--at least in the case of reading the parm. - - * rtl.c (rtx_equal_p): REG_FUNCTION_VALUE_P is significant - only until end of reload pass. - * toplev.c (rest_of_compilation): - Control that by setting new var rtx_equal_function_value_matters. - - * c-decl.c (init_decl_processing): Don't declare the builtins - that aren't really implemented. - - * output-sparc.c (output_move_double): "in structure" implies - 8-byte alignment only for DFmode, not for DImode. - - * final.c (output_operand_lossage): Cleaner text for error msg. - No longer need to write text into .s file, now that linenum is correct. - - * c-decl.c (pushdecl): -traditional stops warning - about "declared extern, later static". - - * c-typeck.c (build_indirect_ref): Don't handle flag_volatile here. - * expr.c (expand_expr): Handle it here, in INDIRECT_REF case. - This prevents -fvolatile from causing additional warnings. - - * output-sparc.c (output_load_address): Allow REG+REG for operands[3]. - - * m68k.md (movsi): If we output the label LIn, - set the RTL_INTEGRATED flag in the switch table's pattern. - * tm-3b1.h (ASM_OUTPUT_CASE_END): Define LD%n only if LI%n was output. - - * i386.md (push-and-add pattern): Comment it out. - It's said to result in slower code. - - * i386.md (tstqi, tsthi, tstsi): Output real `test' insn if op is reg. - - * i386.md (push for DI): Allow `oiF' for 2nd operand. - -Fri Dec 2 13:57:35 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * i386.md (movdi): Allow F constraint for 2nd operand. - - * i386.md (push for QI): define pattern to push a QImode - which really uses pushw and therefore really pushes a halfword. - * tm-i386.h (PUSH_ROUNDING): Round up to multiple of 2. - - * gcc.c (do_spec_1): Handle %e, which means report an error. - Use it to prohibit -pg with -fomit-frame-pointer. - - * tree.h (DECL_RESULT_TYPE): New field in FUNCTION_DECL holds the type - of the widened returned value (not nec. the declared return type). - * c-decl.c (start_function): Set DECL_RESULT_TYPE. - * integrate.c (expan_inline_function): Use that, not DECL_RESULT. - -Thu Dec 1 16:44:10 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * cse.c (fold_rtx): When reordering constant args, insist on - manifest constants; regs with known contents won't do. - - * i386.md (mulsi3): Don't use rtx_equal_p to compare regs. - - * expr.c (move_by_pieces_1): Don't call change_address - if address is autoinc, since that may not be memory_address_p. - Subroutine-macro add_offset deleted. - - * optabs.c (bcc_gen_fctn, setcc_gen_fctn): Moved to this file. - (init_optabs): Init those tables here. - * expr.c (init_conditions): Not here. - - * stmt.c (assign_stack_local): Make a list of all stack slots. - * emit-rtl.c (unshare_all_rtl): Unshare all the stack slots. - - * final.c (final): Handle BARRIER with ASM_OUTPUT_ALIGN_CODE. - * tm-ns32k.h (ASM_OUTPUT_ALIGN_CODE): Align to 4-byte bdry. -?? * tm-sequent.h (ASM_OUTPUT_ALIGN_CODE): Override: just 2-byte bdry. - - * tm-m68k.h (PRINT_OPERAND): use new macros to print floats. - (ASM_OUTPUT_FLOAT_OPERAND): New macro. - (ASM_OUTPUT_DOUBLE_OPERAND): New macro. - * tm-sun3.h: Override those macros, to check for infinities. - -Wed Nov 30 06:35:47 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * tm-ns32k.h (FUNCTION_{PRO,EPI}LOGUE): if no frame pointer, - do explicit push or pop insns. - - * tm-genix.h (PRINT_OPERAND): Fix typo `file'. - Extedn decl for paren_base_reg_printed. - (MAIN_FUNCTION_PROLOGUE): Deleted. - (ASM_OUTPUT_EXTERNAL): Defined. - - * c-parse.y (yyerror): Better error msg for unprintable char in token. - (primary => identifier): Set TREE_USED if implicit decl made. - - * Makefile (cleanlinks): New target. - (INSTALL): New variable, has program used for installing files in sys. - - * output-ns32k.c (print_operand_address): If addr is sum of 2 consts, - output ADDR first, then OFFSET. - - * ns32k.md (addsi3): Allow adding const+reg with result in another reg. - - * tm-seq386.h (FUNCTION_PROFILER): Provide overriding definition. - - * tm-hp9k320.h: Alternate ASM_SPEC if using GAS. - Define STANDARD_STARTFILE_PREFIX if using GAS. - (FUNCTION_PROLOGUE): on 68020 for big stack frame use link.l. - - * gcc.c (STANDARD_STARTFILE_PREFIX): New cust. macro replaces `/lib/'. - - * va-sparc.h, va-spur.h: Prefix non-interface identifiers with `__'. - - * optabs.c (init_optabs): Don't set up libcalls for ftrunc_optab - because (1) they aren't supported and (2) they are never used. - - * gnulib.c (__builtin_saveregs): If not sparc, define the symbol anyway - to avoid a warning in ranlib. - -Mon Nov 28 01:46:12 1988 Michael Tiemann (mdt at choctaw) - - * c-parse.y (yylex): Typo, `=' for `==' making wide strings. - - * sparc.md (various places): make sure that all patterns which store - can store using const0_rtx (i.e., make all operands to `st' %rx). - - * output-sparc.c (various places): changed dispatches on SYMBOL_REF - to dispatches on CONSTANT_ADDRESS_P since we now recognize any CONST - (and not just SYMBOL_REFs). Don't recognize special case CONST for - output_block_move. Compiler doesn't have enough information to use - it. - - * stmt.c (expand_fixup): If the control stack is nested within the - nesting stack, then no fixup is needed. Otherwise, compiler must - check for possible fixups between the current nesting stack and the - nesting stack that immediately contains the control stack. - - * stmt.c (expand_function_start): functions which are nested use - DECL_CONTEXT. For these functions, test that their DECL_CONTEXT is - a LET_STMT node. - - * tree.h: declare `build_offset_type'. - -Sun Nov 27 10:34:53 1988 Richard Stallman (mdt at yahi) - - * output-sparc.c (output_move_double): - Don't try to use ldd/std if OP1 is a constant. - * sparc.md (movdi): Allow immediate args moved into general regs. - - * c-decl.c (grokparms): Reject incomplete parm types even if just - declarating, not defining. Change types to error_mark_node - in both the PARM_DECL and the list of types. - - * dbxout.c (dbxout_type): It's not a bug if a RECORD_TYPE - has a typedef as its TYPE_NAME. That happens in C++. - - * Make each `asm' with operands record its source file/line - with reg-notes. It doesn't work to emit a special note before the insn - because the insn can be moved by loop_optimize. - * stmt.c (expand_asm_operands): New args FILENAME, LINE. - Record them in the insn, in reg notes. - * c-typeck.c (c_expand_asm_operands): New args, passed along. - * c-parse.y: Pass those args. - (maybe_type_qual): Line #s for asm stmts emitted like all others. - * rtl.h (REG_ASM_FILE, REG_ASM_LINE): New kinds of reg notes. - * toplev.c (error_for_asm): Get the info from those notes. - - * reload.c (find_reloads): Don't clear BADOP for a reg letter - if the alternative ultimately doesn't allow any regs. - - * reload.c (find_reloads): If an `asm' insn gets an error, - change it to a USE to avoid duplicate error msgs or later trouble. - - * reload.c (find_reloads_address): Reloading a constant address, - specify Pmode as the mode for push_reloads, in case of CONST_INT. - - * expr.c (emit_push_insn): Fix calc. of space needed when PARTIAL > 0. - Both scalar case and BLKmode case needed fixing. - - * sparc.md (load/store constant address): - Moving DF from mem to cpu regs, don't go via %f0. - Don't use std/ltd if alignment is wrong or uncertain. - -Sun Nov 27 10:34:53 1988 Michael Tiemann (mdt at yahi) - - * reload.c (push_reload): Allow VOIDmode for INMODE, OUTMODE; - default the mode from the operand values. - - * sparc.md: remove patterns which generate annulled branch insns. - They are correct, but those insns confuse GDB. - - * tm-sparc.h (GO_IF_LEGITIMATE_ADDRESS): - Treat any constant address like a SYMBOL_REF. - * sparc.md: Check for CONSTANT_ADDRESS_P rather than SYMBOL_REF. - - * sparc.md: Peepholes now accept SYMBOL_REF addresses. - The output routine can now split them properly even as delay insns. - - * print-tree.c (dump): added entry for METHOD_TYPE and - METHOD_CALL_EXPR. Also added entry for WITH_CLEANUP_EXPR. Suggest - that we make first_rtl of WITH_CLEANUP_EXPR 2 instead of 1. - -Sun Nov 27 00:15:33 1988 Michael Tiemann (mdt at yahi) - - * print-tree.c (dump): added entry for OP_IDENTIFIER. - - * tree.c (build_op_identifier): new function. Needed because - `build_nt' expects an "e" node, but OP_IDENTIFIER is an "x" node. - - * store_layout.c (layout_record): use DECL_FIELD_CONTEXT instead of - DECL_CONTEXT. - - * tree.h (DECL_FIELD_CONTEXT): new macro. Points to the type that a - FIELD_DECL is a member of. For C, this is just DECL_CONTEXT. - - * tree.c (build_method_type): typo used "==" to assign basetype to - TYPE_METHOD_BASETYPE with predictably poor results. - -Sat Nov 26 22:55:32 1988 Michael Tiemann (mdt at yahi) - - * output-sparc.c (output_sized_memop): new function to output a load - or store insn based on the size of the operand loaded or stored. - (make_f0_contain_0): use info from condition codes to decide whether - the register %f0 needs to have 0 loaded from memory or not in order - to contain zero. - (gen_scc_insn): new function used by define_expands for - set-on-condition-code insns. - (output_delay_insn): now knows how to handle load and store - scheduling when the load or store operation takes two insns instead - of one. The rewrite is now understands is this: - - sethi %hi(address),%g1 -> sethi %hi(address),%g1 - ld/st [%g1+%lo(address)],%reg -> b target - b target -> ld/st [%g1+%lo(address)],%reg - nop -> ;; gone - - * jump.c (reverse_condition): make this function publicly visible, - now needed in expr.c. - - * output-sparc.c (reg_or_0_operand): new function, returns nonzero - if operand is const0_rtx or a register of specified mode. - (hardreg): deleted. - - * expr.c, stmt.c: fixed random syntax errors. - - * tree.c (build_method_type): now corresponds to defn in tree.def - expr.c (expand_call): removed code to get FUNCTION_TYPE from - METHOD_TYPE. This should probably be looked at harder. - - * tree.def (METHOD_TYPE): Changed definition so that TREE_TYPE (m) - (where m is a METHOD_TYPE) is the type of the return value of the - method, not the FUNCTION_TYPE from which the METHOD_TYPE is derived. - - * Makefile: Changed target of BINDIR from /usr/local to - /usr/local/bin. - -Sat Nov 26 16:29:22 1988 Michael Tiemann (mdt at chickasaw) - - * tm-sparc.h (GO_IF_LEGITIMATE_ADDRESS): Allow any SYMBOL_REF. - (NOTICE_UPDATE_CC): Remember high half of %g1 as a "condition code" - to avoid reloading it if it does not change. - (NOTICE_UPDATE_CC): Test SET_SRC, not SET_DEST, for a CALL rtx. - (PRINT_OPERAND): New code-letter `m' says output operand as an address. - - * toplev.c (flag_syntax_only): New flag variable. - * flags.h: Likewise. - - * toplev.c (error_with_decl): Extra arg, passed to fprintf. - (warning_with_decl): Likewise. - - * tree.c (build_offset_type): New function. - - * tree.h (TYPE_METHOD_BASETYPE): New name for TYPE_METHOD_CLASS. - Uses in tree.c and... renamed. - - * combine.c (SUBST_INT): New macro, for replacing an int. - (subst): Collapse nested SUBREGs even if SUBREG_WORDs are not 0. - - * expr.c (bcc_gen_fctn, setcc_gen_fctn): new tables, - initialized in init_comparisons. - Used in expand_expr, do_jump, do_store_flag - instead of explicit construction of a jump. - - * expr.c (save_noncopied_parts): New function. - - * expr.c (expand_expr): - ARRAY_REF: Special case for array of constants. - WITH_CLEANUP_EXPR: Handle it. - INIT_EXPR: Case deleted. - MODIFY_EXPR: Use save_noncopied_parts. - - * expr.c (expand_call): blkmode_parms_forced can be >0 - even when no stack arg space otherwise needed. - Don't use a hard reg as a target if there are cleanups. - - * stmt.c (struct block): New elt. outer_cleanups. - (struct case): New elt. num_ranges. - (struct fixup): Changed meaning of cleanup_list_list. - Changes in expand_fixup, fixup_gotos. - (expand_fixup): Detect some internal forward-jumps - that need no fixups--for speed. - (fixup_gotos): New arg THISBLOCK. - (expand_expr_stmt): Handle flag_syntax_only. - (use_variable): No longer static. - (use_variable_after): new fn. - (expand_end_bindings): handle cleanups like a stack level. - (expand_decl): Handle a cleanup with no decl. - (move_cleanups_up): Preserve relative order of cleanups. - (expand_anon_union_decl): New fn. - (pushcase): New fast clause if no ranges yet. - (pushcase_range): Turned on. - (expand_function_start): New temp var `fntype'. - Set TREE_USED for a parm we are ignoring. - (expand_function_end): Really use the `filename' arg. - Use use_variable_after for SAVE_EXPR regs. - - * dbxout.c (dbxout_type): Handle OFFSET_TYPE. - - * gnulib.c (__builtin_new, etc.): Support for C++. - - * emit-rtl.c (next_insn, prev_insn): New fns. - -Sat Nov 26 16:29:22 1988 Richard Stallman (mdt at chickasaw) - - * tree.h (TREE_LANG_FLAG_[1234]): New attributes. - (TYPE_METHOD_BASETYPE): New name for TYPE_METHOD_CLASS. - (TYPE_OFFSET_BASETYPE): New macro. - (NUM_TREE_CODE): New macro. - (TYPE_NONCOPIED_PARTS): new field in a type-node. - - * varasm.c (make_decl_rtl): Split out from assemble_variable. - (assemble_variable): No longer creates the rtl. - No longer handles policy of whether to output tentative decl yet. - (output_constant_def): Don't lose if wasn't temp allocation - when this was called. - (output_constant): Handle REFERENCE_EXPR. - - * Makefile (BISONFLAGS): new variable. - (prefix): New variable, used in bindir and libdir. - (C_OBJS, CPLUS_OBJS): New vars, split off from OBJS. - (LIBFUNCS): C++ support functions added. - (CPLUS_TREE_H): New variable. - (cc1plus): New target. - (lang_c, lang_cplus): Combines all targets for one language. - (gplus.info): New target. - (cplus-*.o): New targets. - (realclean): Handle new C++ files and recent renamings. - (install, TAGS): Likewise. - - * print-tree.c (prtypeinfo): Handle TREE_LANG_FLAG_[1-4]. - - * tm-sparc.h (ASM_OUTPUT_DOUBLE): Special case for infinity. - (ASM_OUTPUT_FLOAT): Likewise. - - * gcc.c: Don't define __GNU__. - For .cc files, pass -+ to cpp, and don't handle -ansi. - Use cc1plus as name of compiler for .cc files. - - * stor-layout.c (layout_type): abort if given a LANG_TYPE node. - (layout_union): Complain if union has basetypes or static members. - (layout_record): Handle anonymous union members. - - * tree.def (LANG_TYPE): New tree code for language-specific purposes. - (WITH_CLEANUP_EXPR): New tree code for expressions whose values - need to be cleaned up when they are deallocated. - (OP_IDENTIFIER): New tree code for certain C++ purposes. - - * toplev.c (rest_of_decl_compilation): Call make_var_rtl - before assemble_variable. - -Wed Nov 23 02:15:45 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * xm-sunos4.h: Rename included config files to xm-*. - * xm-*.h: Likewise. - - * fixincludes: Avoid altering args to names other than CTRL - that end in ...CTRL. - If a file isn't actually changed, delete the copy. - -Mon Nov 21 12:48:22 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * loop.c (move_movables): Never move a reg w/ # > old_max_reg. - (strength_reduce): For nonreplaceable giv, put insn to load it - after the insn that used to compute it, in case the latter - is the last of a libcall sequence. - - * stmt.c (expand_function_end): If returning BLKmode, also copy - address where value is returned to the place that GDB will - expect to see it after the return. - - * c-parse.y (readescape): Warn about hex constant out of range - for a target integer. - (yylex): Warn about escape out of range for non-wide char or string. - Use a buffer of ints to read a wide string. - -Sat Nov 19 02:18:02 1988 Richard Stallman (rms at apple-gunkies.ai.mit.edu) - - * Version 1.31 released. - - * sparc.md: Change `K' to `I' in all constraints. - - * loop.c (gen_iv_mult): Handle TARGET==0. - - * c-decl.c (duplicate_decls): Undo last change. - - * c-decl.c (pushdecl): Instead of that change, - save old-decl's file/line before calling duplicate_decls, - and pass them later to warning_with_file_and_line. - * toplev.c (warning_with_file_and_line): New fn. - -Fri Nov 18 13:07:06 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * stmt.c (fixup_var_refs_1): (SUBREG (MEM)) was slipping through - in case where a SET was writing in the variable being fixed. - - * recog.c (register_operand, nonmemory_operand, memory_operand): - Changes to handle new var reload_completed: 1 means that - (SUBREG (MEM)) now counts as a mem-ref, since alter_subreg - will make it one. - * toplev.c (rest_of_compilation): Set and clear reload_completed. - - * sparc.md (call patterns): If TARGET_SUN_ASM, and address in reg, - output a jmpl rather than a call. - * tm-sun4os3.h: Like tm-sparc.h but turn on TARGET_SUN_ASM. - - * reload.c (push_reloads): Reinstate handling of reg_equiv_constant. - -Thu Nov 17 09:48:14 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * reload1.c (constraint_accepts_reg_p): Name changed from - constraint_all_regs_p; new arg is reg we are concerned with, - and condition tested takes some advantage of that reg. - - * gcc.c (main): Rename var `error' to `error_count' for name conflict. - - * emit-rtl.c (emit_note): Output line #s even if no debug info wanted. - (emit_line_note): New fn, does what emit_note did. - (emit_line_note_force): New name for emit_note_force. - * stmt.c, c-parse.y: Call emit_line_note instead of emit_note. - - * c-parse.y (maybe_type_qual): Call emit_note instead of emit_line_note - Now we can find the line # of every `asm' from the RTL. - * toplev.c (error_for_asm): New fn, gets line # by searching for NOTE. - * reload.c (find_reloads): Use error_for_asm. - * reload1.c (choose_reload_targets): Likewise. - * final.c (output_operand_lossage): Likewise. - Variable this_is_asm_operands is now current insn if it's nonzero. - - * loop.c (move_movables): When a reg is moved, update regno_first_uid - and regno_last_uid; say life span includes entire loop. - * Decrement THRESHOLD per reg moved, not per insn moved. - -Wed Nov 16 08:41:32 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * gnulib.c (___builtin_saveregs): New fn, for sparc. - - * tm-sparc.h (GO_IF_LEGITIMATE_ADDRESS): Don't recognize - SYMBOL_REFs, except for the constants pool. - But do recognize REG+REG and SMALLINT+REG. - * sparc.md: New patterns for fetching and storing memory - whose address is symbolic and not "legitimate". - - * sparc.md (movsi): Add `f' to op1 constraint. - New output clause for result in fp reg. - (Floating point fetch patterns): Output sethi insns. - (call_value, related patterns): value-register has `register_operand'. - - * output-sparc.c (hardreg): New function. - (COMPATIBLE): Clause added for n_regs == 2. - (single_insn_src_p): Return 0 for MEM whose address is absolute. - - * tm-genix.h (GO_IF_LEGITIMATE_ADDRESS subroutines): - Redefine, to exclude any possibility of SB-referencing addresses. - - * loop.c (strength_reduce): Can't eliminate a biv if used before - start of the loop. Used before is same as used after, if contained - in another loop. - - * recog.c (asm_noperands, decode_asm_operands): - Handle case of no outputs, but some clobbers. - * stmt.c (expand_asm_operands): Generate right stuff for that case. - - * tm-sun3.h (CPP_SPEC): Don't define __HAVE_68881__ if using fpa. - -Tue Nov 15 00:10:26 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * loop.c (gen_iv_mult): Arg OP0 may not be a constant. - Pay attention to return value of expand_mult. - (eliminate_biv): Call changed. - - * output-m88k.c, output-sparc.c (output_move_double): - Fix typo `optype0' for `optype1'. - - * c-decl.c (duplicate_decls): Don't alter file, line of old decl. - - * c-parse.y (skip_white_space): Don't recognize comments; rely on cpp. - - * rtl.c (rtx_equal_p): Handle vectors. - - * loop.c (scan_loop): Change elts of n_times_set back to positive - for candidates that weren't moved, before doing strength reduction. - - * ns32k.md (movdi, movdf): Use `&' constraint for first operand. - - * reload1.c (reload): Initialize spill_indirect_ok here. - - * config-sun4.h: Recognize `-static' switch. - - * global-alloc.c (set_preference): Avoid using nonsense hard reg #s - that result from adding OFFSET. - - * sdbout.c (sdbout_end_function): Line # in .ef should be relative. - - * final.c (output_source_line): For SDB, don't output negative #s. - - * tm-encore.h (ASM_OUTPUT_LOCAL): Don't ignore SIZE arg. - -Mon Nov 14 11:03:16 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * reload.c: Don't declare refers_to_regno_p. - - * gcc.c (main): Warn if any input files are for the linker - but the linker is not being run. - - * jump.c (sets_cc0_p): Dumb bug fetching elts of a PARALLEL. - - * local-alloc.c: qty_birth, qty_death elements are now -1, not 0, - when the value is not known. - - * expmed.c (extract_bit_field): Bug computing xbitpos, xoffset - when changing units from bytes to words. - - * loop.c: Rename `times_used' field in `struct movable' to `savings'. - (scan_loop): When scanning the consecutive sets, for each libcall, - increment `savings'--leave `consec'. - When making movable for (SET (REG) 0) which is part of zero-extension, - set `savings' to 1 initially, since only 1 insn will be moved. - And don't let any other reg force that insn. - Reduce initial THRESHOLDs. - (move_movables): Don't add `consec' into `savings' - since the initial `savings' was proportional to `consec'. - Decrement THRESHOLD by 3 (not 2) for each move done. - - * reload1.c (choose_reload_targets): Strip subregs from OLD - before writing the output-reload move-insn. - - * reload1.c (reload): counted_for_groups and counted_for_nongroups - are now file-scope. Update them both when spilling. - (new_spill_reg): No need for counted_for_nongroups as arg. - (choose_reload_targets): Don't use for a group - any spill regs for which counted_for_nongroups is set. - - * dbxout.c (dbxout_symbol): Indirect-symbol case checked erroneously - for PARM_DECL. - -Sun Nov 13 08:13:49 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * cse.c (fold_rtx): Don't alter MULT by -1 if arg mode != result mode. - - * loop.c (move_movables): If moving a CALL_INSN, make a new CALL_INSN. - * emit-rtl.c (emit_call_insn_before): New fn. - - * config-sun4.h (LINK_SPEC): Avoid shared libraries if -g. - - * expr.c (store_one_arg): Stabilize ARG->stack so it doesn't use SP - before computing the arg value. - - * combine.c (use_crosses_set_p): Moving a ref to stack ptr - is always forbidden if machine has push insns, since might cross one. - - * vax.md (movqi): Avoid out-of-range immed ops in mcomb. - - * expmed.c (extract_bit_field): Don't say `extzv' in the - clause for `extv'. - - * emit-rtl.c (copy_rtx_if_shared): Even if a MEM can be shared, - unshare its address from everything outside that MEM. - - * expr.c (expand_builtin): Fix omitted arg to `convert_to_mode'. - - * expr.c (store_expr): In case where will not return TARGET - and must do type conversion, don't fail to store into TARGET. - - * dbxout.c (FORCE_TEXT): New macro used before output `.stabs' - to go to the text section on targets that require it. - (DEBUG_SYMS_TEXT): Target macro which turns on that feature. - - * reload1.c (reload): Index in spill_regs was wrong - when checking counted_for_groups. - (choose_reload_targets): When calling find_equiv_reg looking for - a reload reg, reject all spill regs, even those not in use now. - - * tm-sun386.h, tm-sun386i.h, config-sun386i.h: New files. - - * cccp.c (main): Don't die if no output file arg given. - - * fixincludes: Tell `find' to find only ordinary files. - - * config.gcc: If symlink fails, make a hard link. - -Sat Nov 12 20:43:20 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * Makefile (gnulib): Use cp to make the temporary .c files; - less likely to fail than ln. - -Sat Nov 5 12:46:39 1988 Randall Smith (randy at sugar-bombs.ai.mit.edu) - - * tm-m68k.h (HARD_REGNO_MODE_OK): Disallowed d7:a0 as an allowable - pair of registers to hold a double value. This is correct for the - fpa but incorrect for the 68881. It was, however, simpler than - defining a new regclass. - -Tue Oct 25 12:03:49 1988 Randall Smith (randy at gluteus.ai.mit.edu) - - * m68k.md: Added some thoughts (comments) on best method to allow - 68881 code with fpa code. - -Thu Oct 13 14:19:17 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * Version 1.30 released. - - * stupid.c (stupid_life_analysis): Init last_call_suid with - largest possible value, not 0. - -Wed Oct 12 04:40:18 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * output-i386.c (output_asm_insn_double_reg_op): Compensate for - assembler bug that interchanges fsub and fsubr. - - * reload1.c (order_regs_for_reload): Undo 29 Sept change. - It breaks the 386. - - * varasm.c (decode_rtx_const): Don't example value->addr - if what was stored in was value->d. - - * toplev.c (set_float_handler): New fn, specify where to jump - on floating exception signal. - * fold-const.c (combine): Use that to handle overflow in arithmetic. - - * c-decl.c (grokdeclarator): Don't clear CONSTP, VOLATILEP - when making an array type. - - * dbxout.c (dbxout_symbol): Ignore VAR_DECLs in memory whose - addresses we can't represent. - - * fold-const.c (fold): don't convert >= to > if both args are constant. - When converting >= to >, don't fail to change CODE. - -Tue Oct 11 04:13:40 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * vax.md (movhi): Error in truncating mcomw, addh3 args to 16 bits. - - * final.c: Better error checking for %-specs in templates. - (output_operand_lossage): new fn to report errors. - (insn_noperands): new var: # operands in current fn. - (this_insn_asm_operands): new var: 1 for `asm', 0 otherwise. - (output_asm_insn): Check for operand # out of range. - (output_asm_label, output_operand): Call new fn to report errors. - - * reload.c (push_reloads): An input reload for (REG N) can match one - for (POST_INC (REG N)) or (PRE_INC (REG N)), since the value - reloaded is the same in any case. - -Mon Oct 10 06:19:05 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * recog.c (next_insns_test_no_inequality): Like next_insn_tests... - but check all insns that follow this one and can use it's cc's. - * output-m68k.c (output_btst): Use that. - - * vax.md (movsf, movdf): Undo last change; movq/movl set the cc wrong. - - * expr.c (expand_call): Set current_function_calls_setjmp if appro. - * stmt.c (setjmp_protect): New fn: move all vars into stack - unless declared `register'. - * c-decl.c (finish_function): Call it if -traditional and setjmp used. - - * cccp.c (main): Open output after the input. - Handle `-o -'. - -Sun Oct 9 00:28:06 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * tm-sun3.h (CPP_SPEC): Define __HAVE_FPA__ if appropriate. - - * c-decl.c (pushdecl): After duplicate_decls, maybe warn about - "declared extern and later static". - - * expmed.c (store_bit_field): In insv case, avoid turning - VALUE into a subreg of a subreg. - - * loop.c (move_movables): When moving a libcall, - un-cse the function address; put it into the call insn. - -Sat Oct 8 01:48:03 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * cse.c (equiv_constant): Subroutine to find the constant equivalent - of a reg. Now handles SUBREGs too. - (fold_rtx, fold_cc0): Use that function. - Don't handle SUBREGs like arithmetic. - - * reload1.c (choose_reload_targets): Don't call reg_overlap_mentioned_p - if arg is 0. - -Fri Oct 7 01:00:19 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * assert.h: Typo declaring __eprintf. - - * config.gcc: New file for making the links. - Fixed bugs for sun-[23]-os4. Added sun-[234] for sunos 3. - Added sequent-i386. - - * emit-rtl.c (gen_rtx): Return const0_rtx for 0 in DImode. - * varasm.c (immed_double_const): Don't be confused by this. - - * expmed.c (negate_rtx): New 1st arg MODE. - * expr.c (push_block): Calls changed. - * m68k.md, ns32k.md, vax.md: Calls changed. - - * c-decl.c (duplicate_decls): Don't discard DECL_BLOCK_SYMTAB_ADDRESS. - - * tree.c (staticp): INDIRECT_REF with constant address is static. - COMPONENT_REF may not be, if component offset isn't constant. - - * c-typeck.c (default_conversion): Converting array to ptr, if array - isn't a VAR_DECL, go through build_unary_op so that COMPONENT_REFs - will be simplified away. - - * ns32k.md (tbitd patterns): op 0 constraint: reject constants. - * ns32k.md (extzv for SImode and HImode): - Use adj_offsetable_operand; plus_constant was the wrong thing. - -Thu Oct 6 00:10:41 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * Version 1.29 released. - - * loop.c (scan_loop): Don't think a `return' insn enters the loop. - - * ns32k.md (ashrsi3, etc): New define_expands for right shift. - - * reload1.c (choose_reload_targets): Change in the `force_group' - logic to avoid crashes. - -Wed Oct 5 04:09:19 1988 Richard Stallman (rms at corn-chex.ai.mit.edu) - - * expr.c (expand_expr, MINUS_EXPR): When negating integer op1, - truncate it to its mode. - - * expmed.c (extract_bit_field): SUBREG error check was wrong; - SImode SUBREGs are possible and ok in extzv, extv. - - * tm-ns32k.h (REGISTER_NAMES): Had two excess elements; deleted. - -Mon Oct 3 01:15:51 1988 Richard Stallman (rms at corn-chex.ai.mit.edu) - - * toplev.c (main, compile_file): If no files spec'd, use stdin, stdout. - - * flow.c (propagate_block): When checking for stack-adjust insns, - exclude non-SET patterns. - - * jump.c (jump_optimize): When changing jump=>return to return, - must rerecognize the insn. - - * toplev.c (compile_file): Allow `-' for main input or output filename. - -Sun Oct 2 10:30:09 1988 Richard Stallman (rms at apple-gunkies.ai.mit.edu) - - * final.c (final): NOTICE_UPDATE_CC has extra arg, INSN. - * tm-*.h: Change definitions. - - * stmt.c (optimize_bit_field): Use gen_lowpart to make subregs. - - * stmt.c (assign_parms): Don't obey regdecls in inline function. - Don't lose existing REG_NOTES when adding one. - - * stmt.c (expand_function_start): Make return rtx before - marking parms live. - (expand_function_end): Use use_variable to emit USEs for SAVE_EXPRs. - - * stmt.c (expand_return): Handle TRUTH_AND_EXPR like ANDIF; OR also. - - * stmt.c (expand_end_stmt_expr): Always set TREE_VOLATILE, - sometimes TREE_THIS_VOLATILE. - - * jump.c (delete_insn): When finding PREV, skip deleted insns. - - * varasm.c (output_constant): WORDS_BIG_ENDIAN test was backwards. - - * emit-rtl.c (gen_lowpart): Allow MODE > 1 word if X is same size. - - * final.c (final): Don't delete no-op moves (jump did it if appro.). - - * final.c: Support prescan pass. - (final_start_function): init_recog and CC_STATUS_INIT mvd to `final'. - (final): New arg PRESCAN. Do no output if prescanning. - Don't alter conditionals if PRESCAN < 0 (prescan already done). - If jump becomes no-op, change it to a NOTE. - Remember to free the temp space for ASM_OPERANDS. - - * final.c (final): Altering store-flag must check STORE_FLAG_VALUE. - Don't try to do it if that isn't defined. - Don't try it if condition doesn't test CC0. - (alter_cond): No need to check COND != 0. - Handle CC_Z_IN_NOT_N and CC_Z_IN_N. - (m68k.md): Delete code that handled CC_Z_IN_NOT_N. - - * conditions.h: New flag CC_Z_IN_N. - * tm-*.h: Renumber all CC_... flags to make room. - - * combine.c (use_crosses_set_p): Loop start was 1 off. - - * local-alloc.c (reg_is_set): When a reg is CLOBBERed and dies in - one insn, make it live immediately before and after that insn. - - * global-alloc.c: Hard reg preferences for global pseudos. - Var allocno_preferred_reg deleted; new vars hard_reg_preferences - and regs_someone_prefers. - (global_alloc): Init those vars. Pass hard_reg_preferences elt - to find_reg. - (set_preference): New function makes entries in those vars. - (global_conflicts): new arg to mark_reg_store. Call set_preference. - (find_reg): Last arg now a preferred hard_reg_set. - Scan that set first of all. - (mark_reg_store): New arg is offset for renumbered regno. - But the code to use it is turned off. - - * global_alloc (check_frame_pointer_required): Handle reg_equiv_address - like reg_equiv_mem. Don't try to allocate pseudos with equiv mems - that don't use the frame pointer. - * reload1.c (reload): Call changed. - - * jump.c (sets_cc0_p): Tests whether rtx sets cc0, and whether - it does nothing but set cc0. - (find_cross_jump, delete_jump): Use that fn for these tests. - * loop.c (loop_skip_over): Likewise. - * reload.c (push_reload): Likewise. - - * genoutput.c: Output `const' before the data arrays. - Define it as nothing if not __STDC__. - -Sat Oct 1 02:19:29 1988 Richard Stallman (rms at apple-gunkies.ai.mit.edu) - - * expr.c (store_one_arg): 3rd arg to emit_block_move is in bytes. - - * cse.c (fold_rtx): Handling ZERO_EXTEND or SIGN_EXTEND of constant, - if the arg width is too wide to handle, return safely. - - * combine.c (FAKE_EXTEND_SAFE_P): Don't allow extend to > 1 word. - - * rtl.c (refers_to_regno_p): Moved from reload.c. Not static. - (reg_overlap_mentioned_p): New function, calls the above. - * output-*.c: Use that instead of reg_mentioned_p. - * tm-*.h (NOTICE_UPDATE_CC): Likewise. - * reload.c (push_reload, combine_reloads): Likewise. - * reload1.c (choose_reload_targets): Use it to check earlyclobbers. - - * reload1.c (choose_reload_targets): Elimination of previous - output-reload feeding our input now limited to pseudo-regs. - - * flow.c (life_analysis): Delete any insn copying reg to itself. - (propagate_block): Move update of OLD after special life and death - for CALL_INSNs. - - * vax.md (ashrsi3, ashrdi3, rotrsi3): define_expands to negate - the shift count. - * expmed.c (expand_shift): Eliminate negate-the-shift-count feature. - - * vax.md (and*i3): define_expands which use complement and bit-clear. - * expmed.c (expand_bit_and): Eliminate feature to do that. - This function could be eliminated. - - * expmed.c (store_bit_field): Handle nested subregs. - Allow gen_insv to fail; if it does, delete what we did and then - use store_fixed_bit_field. - (store_fixed_bit_field): Use gen_lowpart to make SUBREGs. - Do that for SUBREGs just as for REGs. - Error check OFFSET must be 0 for REGs. - (store_split_bit_field): Error check OP0 is a SUBREG when expected. - (extract_bit_field): Allow gen_ext{,z}v to fail. - Use gen_lowpart to make subregs. - (expand_shift): If a try fails, delete any insns it made. - - * expmed.c (expand_mult): Use expand_unop to negate. - When adding 2 powers of 2, do serial shifts, not parallel. - Handle absval==1 like other powers of 2. - - * explow.c (force_reg): Don't lose any existing reg notes. - - * stmt.c (expand_start_stmt_expr): Eliminate return value. - (expand_end_stmt_expr): No need for argument. - * c-parse.y (primary): Change calls. - -Fri Sep 30 01:50:22 1988 Richard Stallman (rms at corn-chex.ai.mit.edu) - - * integrate.c (copy_rtx_and_substitute, copy_address): - 'u' case erroneously returned the translated single element. - (copy_address): Special cases for frame-ptr and sums containing it. - MEM and LABEL_REF cases passed wrong arg to copy_rtx_and_substitute. - (copy_rtx_and_substitute): adjust mode of inline_target for context. - - * jump.c (true_regnum): For SUBREG of pseudo, use pseudo's # unchanged. - -Thu Sep 29 02:50:46 1988 Richard Stallman (rms at corn-chex.ai.mit.edu) - - * i386.md (movsi, mov{q,h}i): Use find_reg_note to look for REG_WAS_0. - * vax.md (movsi, movhi): Likewise. - - * varasm.c (decode_rtx_const): Was setting un.addr.base wrong - for a CONST. Should be symbol name, not the SYMBOL_REF. - - * rtl.c (rtx_equal_p): When comparing registers, check - REG_FUNCTION_VALUE_P. If there are `u'-slots in the rtx, ignore them. - - * rtl.c (reg_mentioned_p): Some rtx types were mistakenly treated - as uniquified (various constants). - - * rtl.c (read_rtx): Element type 'S' is string that may be omitted. - * rtl.def (define_insn, define_peephole): Add a last element, type 'S'. - * genoutput.c: Collect these optional last elements and output as - array `insn_machine_info' of structs `INSN_MACHINE_INFO'. - The last must be defined as a macro. - * recog.h (insn_machine_info): Declare it if appropriate. - - * regclass.c (record_address_regs): In PLUS case, look inside SUBREGs. - - * reload1.c (reload): Use reg_equiv_address for REG_EQUIVs with - invalid memory addresses. - When changing pseudos to mem refs at end, do FIX_FRAME_POINTER_ADDRESS - on their addresses. - (alter_reg): Check that with reg_equiv_mem. - (spill_hard_reg): If fp reg, spill regardless of basic_block_needs. - - * reload1.c (order_regs_for_reload): Don't put invalid regs into - potential_reload_regs at all. (They used to go at the end.) - - * reload.c (find_reloads): Store all earlyclobber operand in - reload_earlyclobbers (# in n_earlyclobbers): - * reload1.c (choose_reload_targets): Don't use value of find_equiv_reg - if it matches an earlyclobber operand. - - * reload.c (find_reloads_address for REG): - No need for explicitly excluding hard regs in these tests. - (find_reloads, find_reloads_address_1 for REG): likewise. - - * reload.c (push_reload): Code testing reg_equiv_constant should - be obsolete; add error check to verify this. - - * reload.c (hard_reg_set_here_p): Handle CLOBBERs, SUBREGs, overlap. - (refers_to_regno_p): Handle CLOBBERS. Handle overlap. - New arg ENDREGNO specs end of range to check for; - all callers changed (all in this file). - - * reload.c (find_reloads): SUBREG like REG in alternate recovery - for earlyclobber conflict. - The operands to unswap are those that are supposed to commute. - When operands match, copy the regclass of earlier one for later one. - - * stmt.c (optimize_bit_field): Don't use gen_extend_insn; - use convert_move, then reorder the insns. - * optabs.c (gen_extend_insn): Deleted. - - * optabs.c (emit_cmp_insn): Don't emit queue before recursion. - Don't convert size to SImode for cmpstrqi. - - * optabs.c (expand_binop): Keep any old REG_NOTES when adding them. - Always delete_insns_since if returning failure. - (expand_unop, emit_unop_insn): Keep any old REG_NOTES when adding them. - * spur.md (movhi): likewise. - - * RTL_EXPR_SEQUENCE is now a chain of insns, not a SEQUENCE. - * emit-rtl.c (emit_insns): New fn, emit a chain of insns. - * expr.c (expand_expr): Use that. - Also put const0_rtx in the RTL_EXPR_SEQUENCE (mark RTL_EXPR as output). - * stmt.c (expand_end_stmt_expr): Use get_insns to get the chain. - - * stmt.c (expand_end_stmt_expr): Put the RTL_EXPR on rtl_expr_chain. - (fixup_var_refs): Scan all waiting RTL_EXPRs not yet output. - Also scan all stacked sequences on sequence_stack. - - * genemit.c (gen_expand): Generate calls to {start,end}_sequence. - Use `emit' to handle a PARALLEL. - (FAIL, DONE): Change to fit gen_expand changes. - - * emit-rtl.c (change_address): abort if arg isn't a MEM. - - * emit-rtl.c: Sequences work now by saving and restoring first_insn - and last_insn. So these variables are used even when in a sequence. - emit_to_sequence has been deleted. - (start_sequence, end_sequence): Save and restore first_insn, last_insn. - (get_last_insn, add_insn): Sequences no longer need special treatment. - (delete_insns_since, reorder_insns): likewise. - (push_to_sequence): Set up to emit to a given existing insn chain. - - * emit-rtl.c (copy_rtx_if_shared): Don't copy INSNs. - Insert missing return stmt in MEM case (for MEMs ok to share). - (unshare_all_rtx): Now can copy the REG_NOTES simply. - Copy the LOG_LINKS too. - - * emit-rtl.c (make_safe_from): Treat SUBREG as X like a REG. - (delete_insns_since): Don't lose if FROM is the first insn. - (emit): Declare void, since no useful value. - Call simplejump_p properly. - (restore_reg_data_1): When a reg is an address, do mark_reg_pointer. - - * dbxout.c (dbxout_types): Call dbxout_symbol to do the work. - (dbxout_type_def): Deleted. - (dbxout_symbol): Set TREE_ASM_WRITTEN when a TYPE_DECL is output. - Don't output the same one twice. - - * cse.c (fold_cc0): LABEL_REF is not zero. - - * cse.c (cse_insn): Don't insert src, dest if they are the same place. - - * cse.c (lookup_as_function): Return entire rtx, not just operand. - (cse_insn): Caller changed. Also, copy the result before inserting it. - - * cse.c (fold_rtx): Put constant arg last if commutative op. - Handle idempotents and identities for mult, div, booleans, shifts. - - * cse.c (canon_hash): Parens were missing around shifts in "rotates". - - * c-convert.c (convert_to_integer): Truncate TRUTH_ANDIF_EXPR - like TRUTH_AND_EXPR; OR also. - - * c-typeck.c (build_binary_op_nodefault): Do truthvalue_conversion - for TRUTH_ANDIF, etc. - (build_unary_op): More simplifications for TRUTH_NOT_EXPR; - uses new fn `invert_truthvalue'. - - * recog.c (reg_fits_class_p): New name for reg_renumbered_fits_class_p - since it no longer needs to renumber. Also it now really assumes - arg is a REG. Callers changed. - * reload.c: Callers changed. - - * recog.c (general_operand): (SUBREG (MEM...)) need not alter mode. - (register_operand, nonmemory_operand): (SUBREG (MEM...)) is allowed. - (memory_operand): (SUBREG (MEM...)) is *not* allowed. - (mode_independent_operand): Operand names were backwards! - (No change in effect of this function.) - - * print-tree.c (dump): Some expr nodes contain rtx's. Print as rtx's. - -Wed Sep 28 18:51:12 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * reload1.c (choose_reload_targets): If a reload wanted a group, - don't allow a single register for it. - -Tue Sep 27 11:43:56 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * final.c (output_addr_const): Handle DImode CONST_DOUBLEs. - * tm-*.h (PRINT_OPERAND): Treat DImode CONST_DOUBLE like a CONST_INT. - - * vax.md (rotldi3): Insn deleted; it doesn't really exist. - - * toplev.c (report_error_function): Also mention the file name, - for parallel makes. New arg FILE; all callers changed. - -Mon Sep 26 15:44:18 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * expmed.c (expand_shift): When using extzv, convert OP1 to SImode. - * c-typeck.c (build_binary_op_nodefault): Convert shift-count - to int regardless of result type. - - * output-spur.c (output_move_double): Fix typo, optype0=>optype1. - - * expr.c (expand_call): Avoid null deref on result of FUNCTION_ARG. - - * tm-i386.h (FUNCTION_PROFILER): Use correct assembler syntax. - -Sun Sep 25 12:13:56 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * fixincludes: Handle some files in netdnet, netdna, vaxif, vaxuba. - - * reload.c (find_reloads): Make no optional reloads if not -O. - - * loop.c (strength_reduce): Can't eliminate a biv if it's used - to compute a DEST_ADDR giv. Only DEST_REG givs are safe. - - * loop.c (general_induction_var): Shift & divide ops are linear - only in 1st operand; don't look for biv or giv in 2nd operand. - - * vax.md (fix_truncdfqi2): Use `%#'. - -Sat Sep 24 00:25:48 1988 Richard Stallman (rms at gluteus.ai.mit.edu) - - * loop.c (n_times_set, n_times_used): Now file-scope; - no longer passed as args to several functions. - - * loop.c (basic_induction_var): Accept reg as source value - only if it's invariant. - (strength_reduce): Benefit calculation and threshold changed. - Check reducibility of givs before trying to reduce them. - Check eliminability of biv before considering the givs; - let this affect the threshold. - (record_giv): New subroutine adds a giv to the chain. - - * ns32k.md (incrementing sp): Use cmpd insns to increment by 4 or 8. - - * integrate.c (expand_inline_function): Rename return_label - to local_return_label; avoid shadowing. - -Fri Sep 23 13:57:52 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * loop.c (loop_skip_over): Put the new label after the note that ends - the loop. - - * loop.c: New function strength_reduce and subroutines. - * toplev.c: New var flag_strength_reduce, set from -fstrength-reduce. - - * vax.md (sob insns): They were broken, with plus in one place - and minus in another. Use plus consistently. - - * rtl.h (REG_LIBCALL, REG_NONNEG): Two new kinds of reg-note. - * optabs.c (expand_binop, expand_unop): Make REG_LIBCALL notes. - * loop.c (scan_loop, move_movables): Move entire library calls. - Use m->set_src to get the expression, in case it's from a REG_EQUAL. - (consec_sets_invariant_p): Likewise. - - * loop.c (scan_loop): Start scan from loop_top, if entry is rearranged. - Watch out for pseudo regs created by strength_reduce; - they can't index regno_last_uid. - (replace_regs): # regs mapped is now an arg. - - * loop.c (count_loop_regs_set): Don't increment n_times_set past 127. - (consec_sets_invariant_p): Reject if N_SETS arg is 127. - - * toplev.c (rest_of_compilation): NREGS arg of loop_optimize deleted. - - * c-decl.c (store_parm_decls): Anything but an IDENTIFIER_NODE - in SPECPARMS indicates a parmlist, not an identifier list. - (get_parm_info): Use only PARM_DECLs when making the list of arg types. - - * combine.c (try_distrib): Boolean ops can't distribute through PLUS. - MULT can distribute through PLUS and only PLUS. - -Thu Sep 22 15:57:41 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * jump.c (jump_optimize): uncond jump to a return becomes a return. - - * integrate.c (copy_parm_decls, copy_decl_tree): Set TREE_USED. - Avoid inevitable "unused" warning for these decls. - - * c-typeck.c (comptypes): When comparing array types, - ignore qualifiers of element type. - - * tm-*.h (ASM_OUTPUT_REG_PUSH, ASM_OUTPUT_REG_POP): Define new macros. - * final.c (final_start_function): Use them to protect around - the call to the profiling function. - * stmt.c (expand_function_start): Set current_function_needs_context - and current_function_returns_struct. - - * stmt.c (expand_null_return_1): If clear_pending_stack_adjust - doesn't clear it, do the adjust now. - * expr.c (clear_pending_stack_adjust): No-op if -finline-functions. - - * cccp.c (macarg1, skip_if_group): Backslash makes next char ordinary. - - * reload.c (find_reloads): Delete code to look for an equiv reg - for a reg being input-reloaded. This isn't safe. - * reload1.c (choose_reload_targets): Do it here. - -Wed Sep 21 00:36:22 1988 Richard Stallman (rms at hobbes.ai.mit.edu) - - * tm-sun3.h (CPP_SPEC): Define it based on TARGET_DEFAULT. - (STARTFILE_SPEC): Likewise. - - * reload1.c (choose_reload_targets): When redirecting prev insn - into this insn's reload-reg, check this doesn't break the prev insn - by giving it a reg it can't accept. Use new fn constraint_all_regs_p. - - * tm-sparc.h (ASM_OUTPUT_LOCAL): Use .reserve, not .common. - - * tree.h (TREE_USED): New attribute macro. - * c-parse.y (primary): Set TREE_USED in ..._DECL nodes. - * toplev.c, flags.h: Define and set warn_unused. - * stmt.c (expand_end_bindings): Warn if any var is unused. - * print-tree.c (prtypeinfo): Print this attribute. - -Tue Sep 20 15:29:01 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * assert.h: `assert' must expand to an expression. - Error message should show arg before expansion, not after. - - * c-decl.c (implicitly_declare): Make decl perm if !warn_implicit - since start_function needs to look inside it in that case. - - * toplev.c (announce_function): If we don't print, don't record we did. - -Mon Sep 19 15:21:11 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-parse.y (structsp): If pedantic, warn if comma at end of enumlist. - - * reload.c (find_reloads): Check insn_code_number >= 0 when - looking in insn_operand_strict_low. - - * tm-sun[23].h (CPP_SPEC): Rename __HAVE_FPU__ to __HAVE_68881__ - and put a space after that option. - -Sun Sep 18 01:12:56 1988 Richard Stallman (rms at hobbes.ai.mit.edu) - - * reload.c (find_reloads): Make optional reloads for explicit MEMs. - - * tm-m68k.h (MODES_TIEABLE_P): If no 68881, can tie fixed to floating. - * m68k.md (movdi): Allow F's (can be DImode now). - Don't allow f-regs (experiment). Don't preference x-regs. - (DImode push): Allow y-regs. - (DFmode push): Allow y-regs, not x-regs. - - * reload1.c (modes_equiv_for_class_p): New function. - (reload): Compare multiple modes for reg group with that function. - Allows differing modes in some cases when not tieable. - - * c-parse.y (check_newline): Let ASM_OUTPUT_IDENT override .ident. - * tm-3b1.h (ASM_OUTPUT_IDENT): Define this as no-op. - - * emit-rtl.c (reorder_insns): Update sequence_{first,last}_insn if nec. - (get_last_insn): If in a sequence, return last insn of sequence. - (delete_insns_since): If in a sequence, set sequence_last_insn. - - * spur.md (CONST_DOUBLE load insn): Use & for most dests. - (cond branches): pass additional args to output_compare. - (movdf, movdi): Use & loading reg from mem. - (trunc*): Enable these. - (add): New pattern for adding large immediate operand. - (shifts): A define_expand for each kind of shift, - plus a recognizer which outputs repeated insns if necessary. - (call*): Use r9 as temp, not r2. - - * output-spur.c (output_compare): New args NEG_{EXCHANGE_,}OPCODE. - (singlemove_string): Handle reg as operand 1. - (output_add_large_offset): Fake add insn with large immediate arg. - (big_immediate_operand): Match such an arg. - - * tm-spur.h (FUNCTION_PROLOGUE): Align the stack pointer. - Handle bigger frames. - (TARGET_LONG_JUMP, TARGET_EXPAND_SHIFT): New target flags. - - * va-spur.h: Track position in regs and stack separately. - - * c-decl.c (duplicate_decls): Warn if prototype follows - non-prototype definition. - -Sat Sep 17 14:30:23 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * expr.c (expand_builtin): Avoid crash if arg isn't integer type. - - * c-decl.c (duplicate_decls): Just warn if redeclaring a builtin, - and leave it built in unless it is redefined. - - * vax.md (ashlsi3): Use addl3, moval or movad when useful. - (addsi3): Avoid pushab, movab for constants < 64. - Do use movab when > 64 when operands match. - (mov*i): Use mcom* rather than mneg*. - Use add*3 with two quick immediate args when useful. - (movhi): Don't use movzbw or cvtbw; said to be slow. - - * rtl.h: New macros MEM_VOLATILE_P, MEM_IN_STRUCT_P, - INSN_DELETED_P, REG_USER_VAR_P, RTX_UNCHANGING_P, RTX_INTEGRATED_P, - CONSTANT_POOL_ADDRESS_P. - Most places changed to use them. - -Fri Sep 16 11:50:15 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * jump.c (jump_optimize): Was testing volatil on non-MEMs erroneously - when looking for no-op move insns. - - * cccp.c (handle_directive): Ignore comments between # and directive. - - * integrate.c (copy_rtx_and_substitute): Stack-push memrefs need - to be copied. - - * tm-bsd386.h (ASM_OUTPUT_DOUBLE): Undef previous def. - - * reload1.c (alter_reg): Don't reuse spill_stack_slot - if it isn't big enough for this reg's mode. - - * expr.c (emit_move_insn): After force_const_mem, ensure - mem address is valid. - (move_block_to_reg, move_block_from_reg): Likewise. - - * expr.c (expand_call): Spurious TREE_VALUE on args[i].tree_value. - - * m68k.md (zero_extend*): Require register_operand for operand 0. - - * stdarg.h (va_start): Alternate defn for sparc. - -Thu Sep 15 11:39:06 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-parse.y (yylex): When atof gives ERANGE, check for "0.0", etc. - - * assert.h (__assert): Alternative definition for -traditional. - - * output-sparc.c (output_block_move): Initialize xoperands. - - * combine.c (try_combine): Never subst for a reg that is incremented. - - * m68k.md (cmpm pattern): Make the match_operands match memrefs - and check that they are pushes in the extra condition. - This makes reloading handle the pushes properly. - - * expr.c (MOVE_RATIO): Make it 15. Allow overriding it. - -Wed Sep 14 09:50:08 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-decl.c (build_enumerator): Use saveable_tree_cons. - - * vax.md (movdf): Use movq when safe. - - * Version 1.28 released. - - * tm-sparc.h (FIRST_PARM_CALLER_OFFSET): Defined. - -Tue Sep 13 00:11:37 1988 Richard Stallman (rms at corn-chex.ai.mit.edu) - - * tree.c (saveable_tree_cons): New function. - * c-decl.c (pushtag): Use it; lists of tags needed for inlining. - (get_parm_info): Likewise. - - * print-tree.c (dump): Handle each kind of statement node individually. - - * integrate.c (copy_decl_tree): Don't pass DECL_RTL through - copy_rtx_and_substitute if it's a memref with constant address. - - * sdbout.c (sdbout_symbol): Don't output garbage when DECL_RTL - has a form we don't understand. - - * reload.c (find_reloads_address_1): Don't reload an autoincrement - if it has a suitable hard reg already. - - * c-typeck.c (process_init_constructor): Error check after digest_init. - - * c-parse.y (is_reserved_word): Now static. - -Mon Sep 12 19:19:28 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * i386.md (all push insns): Use `<' for the constraint, - since a push_operand won't fit an `m' constraint on this machine. - - * expr.c (expand_call): If fn name is `__builtin_alloca', - it may be alloca. This case arises if the user redeclares - `__builtin_alloca'. - -Sun Sep 11 01:47:01 1988 Richard Stallman (rms at gluteus.ai.mit.edu) - - * Eliminate MAX_SETS_PER_INSN. - * cse.c (cse_insn): Combine all the tables and dynamically allocate. - (cse_main): Count the actual number of SETs; don't estimate. - * genconfig.c: Don't calculate MAX_SETS_PER_INSN. - * stmt.c (expand_asm_operands): No limit on # of output operands. - - * expr.c (expand_call): - Store all non-reg parms first, then store all partially-in-reg - parms, then all the (precomputed) wholly-in-reg parms. - Special hair for BLKmode parms which must be passed entirely - in memory; also for BLKmode parms initialized from function calls, - for which it is best to allocate the space before computing value. - Use macro FIRST_PARM_CALLER_OFFSET to handle machines where reg - parms "take up space" on the stack below the stack pointer. - (store_one_arg): Handle case of preallocated stack loc for BLKmode. - Update current_args_size here, not in caller. - -Sat Sep 10 19:58:03 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * output-sparc.c (output_scc_insn): Changed asm templates. - Use common code to emit the move insns and label at the end of fn. - (output_mul_by_constant): Use %g1 as temporary reg. - - * sparc.md (indexed load pattern): Deleted. - (fix_truncdfsi2): Don't ignore value of output_fp_move_double. - (cse'd multiply): Operand 1 predicate is general_operand. - (return peepholes): Conditionalize on ! TARGET_EPILOGUE. - - * tm-sparc.h (INIT_CUMULATIVE_ARGS,FUNCTION_ARG...): - Use partial regs for args that start in regs but won't entirely fit. - - * tm-sparc.h (CONST_COSTS): 0 for args that can be immediate. - (STRUCTURE_SIZE_BOUNDARY): Now 8. - (STRUCT_VALUE_OFFSET): Defined as symbolic name for `64'. - - * expr.c (struct arg_data): New component `stack' says where in the - stack to put a BLKmode arg (if it's nonzero). - (store_one_arg): Handle case where it's nonzero. - (target_for_arg): New fn, precompute stack locn for BLKmode arg. - -Fri Sep 9 01:41:13 1988 Richard Stallman (rms at corn-chex.ai.mit.edu) - - * cse.c (fold_rtx): Misnested ifs screwed SUBREG case. - - * reload.c (find_reloads_toplev): Special case for (SUBREG REG) - where REG is equivalent to a CONST_INT. - (find_reloads): Don't ignore the value returned by find_reloads_toplev. - Treat a (SUBREG constant) like a (SUBREG MEM): set force_reload. - - * reload.c (push_reload): Abort if memory subreg is not - paradoxical; the MEM mode should be narrower than the SUBREG. - - * stmt.c (fixup_var_ref_1): Fixup memory subregs in an insn - copying VAR to or from a register. - - * m68k.md (movdi, movdf): the x-reg constraint accidentally allowed - moving rm to rm with no &. - - * vax.md (call_value): Typo. - - * expr.c (emit_block_move, emit_push_insn): prefer movstrqi to movstrsi - - * m68k.md (FPA multiply): bad opcodes for 3-operand multiply insns. - -Thu Sep 8 18:22:14 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-parse.y: Use YYERROR instead of synonym YYFAIL. - BISON VERSIONS PRIOR TO THIS DATE WON'T WORK! - - * c-typeck.c (digest_init): Use TYPE_MAIN_VARIANT of array elt type. - - * tm-sun[23].h (CPP_SPEC, ASM_SPEC): Let -m(c|)680[12]0 control - options for CPP and assembler. - -Wed Sep 7 13:44:59 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * New handling of reloading of PRE_DEC, etc. - Now reload_in is the PRE_DEC, etc, and reload_inc is always positive. - * reload.c (push_reloads): Old code to set reload_inc deleted. - (find_reloads_address_1): Call push_reload the new way. - (find_inc_amount): Value always positive. - * reload1.c (choose_reload_targets): Detect this case. - (inc_for_reload): New fn; does the real work for this case. - * m68k.md (call, call_value): Fn address must be offsetable. - - * combine.c (try_distrib): Reject strange cases such as if - result of PREV1 or PREV2 is used in a memory address in INSN. - - * vax.md (movsf): Generate movl instead of movf. - - * expr.c (expand_call): If have regparms, store all BLKmode args - before all the other args. - (store_one_arg): New subroutine broken out. - - * output-sparc.c (output_block_move): Complete rewrite. - - * sparc.md (cse'd multiply insn): Typo in asm-output code. - -Tue Sep 6 20:05:48 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-parse.y (yylex, etc.) Install Schmidt's perfect hash table. - - * gcc.c: handle extension `.cc'. - -Mon Sep 5 12:09:58 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * Version 1.27 released. - - * tm-i386.h (PREFERRED_RELOAD_REG): When reloading a QImode, - make sure the class doesn't include %esi or %edi. - * i386.md (movqi): Eliminate only use of the class `x', - for which PREFERRED_RELOAD_REG cannot work. - (In next version, get rid of INDEX_CLASS). - Also use `*' to cause preferencing of Q_REGS. - * tm-m68k.h (PREFERRED_RELOAD_REG): When reloading a QImode, - use DATA_REGS. - - * reload.c (push_reloads): Braino in last change when IN == 0. - - * flow.c (mark_used_regs, mark_set_1): Bug if HARD_REGNO_NREGS - returns 0 for VOIDmode reg (inside a CLOBBER). - - * c-parse.y (asm_operand): Handle `("REGNAME")' as an operand. - * recog.c (decode_asm_operands, asm_noperands): Ignore any CLOBBERs. - * regclass.c (reg_names): Variable now global. - * stmt.c (expand_asm_operands): Generate CLOBBERS when appropriate. - - * stmt.c (assign_parms): Ignore parms that aren't PARM_DECLs. - - * varasm.c (assemble_variable): Do ASM_OUTPUT_EXTERNAL for functions. - - * c-parse.y (yylex): floatflag is now an enum. - Detect invalid use of decimal points (> 1, or in exponent) - and multiple exponent letters. - - * expr.c (expand_call): If inlining fails, set TREE_ADDRESSABLE. - -Sun Sep 4 00:36:30 1988 Richard Stallman (rms at corn-chex.ai.mit.edu) - - * c-decl.c (grokdeclarator): A const array becomes an array of consts. - * c-typeck.c (build_array_ref): Array ref is const if array elts are. - - * output-sparc.c (output_move_double): Change criteria for ldd, std. - (output_fp_move_double): New alternatives avoid ldd, std for - stack refs that aren't aligned. - (output_block_move): Use %g1 as temp reg. - - * sparc.md (floating point load from constant mem address): - Use %g1 as temp reg. Use output_move_double in DF case, not ldd. - (movsf): Asm insn typo in FPreg to FPreg case. - (floatsi{s,d}f2): Constraint changed. - Also new special case pattern in front of it. - (fix_truncdfsi2): Use output_move_double, not ldd. - (addsi3, subsi3): Use %g1 as temp reg. - (cse-optimized multiply): Constraint now `g'; output generalized. - (andsi3, orsi3, xorsi3): Use %g1 as temp reg. - - * reload.c (find_reloads): Force int constants into memory just - like floating ones, if memory is allowed and no regs are. - - * expr.c (expand_call): Don't treat structure_value_addr like a parm - if the first parm would be passed in a register. - Also, write comments for all local vars. - - * tm-386v.h (START_SPEC): Use {g,m}crt1.o, not {g,m}crt0.o. - (LIB_SPEC): Always use crtn.o. - -Sat Sep 3 13:05:50 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * explow.c (plus_constant): Don't put CONST around lone SYMBOL_REF. - - * combine.c (subst): Simplify zero- or sign-extend of a constant. - - * expr.c (expand_expr): for REAL_CST, etc., check for invalid - memory addresses and copy into registers. - - * integrate.c (expand_inline_function): If incoming struct value addr - is in memory, map it like a memory parameter. - - * tm-*.h (FIRST_PARM_OFFSET): Now takes fndecl as argument. - * integrate.c (expand_inline_function): Calc., use and save - this fns value of FIRST_PARM_OFFSET. - (copy_rtx_and_substitute): Use that value. - * stmt.c (assign_parms): Likewise. - - * tm-sparc.h (FIRST_PARM_OFFSET): Make it 64 if value is BLKmode. - (STRUCT_VALUE{,_INCOMING}): Put the value in 64(fp). - - * tm-sparc.h (PRINT_OPERAND_ADDRESS): Print offsets in decimal. - Avoid excess `+' before a negative offset. - - * stmt.c (expand_function_start): Create the return value rtl - before making the tail-recursion loop point. - - * combine.c (gen_lowpart_for_combine): Generate a paradoxical subreg - rather than a wider memref. - - * reload.c (push_reload): Extend last change to case where OUT != 0. - -Fri Sep 2 11:43:20 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * stmt.c (fixup_var_refs): Adjust last_parm_insn when deleting insns. - - * expr.c (emit_push_insn): calling memcpy, bump TEMP 2 pointers worth. - -Thu Sep 1 16:39:57 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * reload1.c (choose_reload_targets): Test for canceled reload - before looking inside reload_out. - - * jump.c (jump_optimize): Bug in last change. - - * m68k.md (return): Pattern disabled; confuses Aug 29 stmt.c change. - * ns32k.md, i386.md: likewise. - - * emit-rtl.c (emit_note_force): New, like emit_note but always do it. - * stmt.c (expand_function_end): Use emit_note_force. - -Wed Aug 31 11:34:08 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * reload1.c (alter_reg): New arg FROM_REG is hard reg that the pseudo - was spilled from. Works with spill_stack_slot. Callers changed. - Now all pseudos spilled from one hard reg get the same slot. - (reload): Initialize new variable spill_stack_slot. - - * cse.c (cse_insn): Don't insert floating point mems if -ffloat-store. - - * reload.c (find_equiv_reg): Allow no equivs for volatile memrefs. - Also none for floating mem refs if -ffloat-store. - - * output-sparc.c (output_mul_by_constant): make `p' and `log' unsigned. - -Tue Aug 30 13:47:12 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * jump.c (jump_optimize): Ignore other NOTEs while looking for - a NOTE_INSN_FUNCTION_END. - - * integrate.c (save_for_inline): Flush extra call to max_reg_num. - Don't copy NOTEs that are NOTE_INSN_FUNCTION_END. - (copy_for_inline): Don't copy NOTEs that are NOTE_INSN_FUNCTION_END. - - * stmt.c (optimize_bit_field): If bit field is SRC, strip subregs - from the DEST. - - * expmed.c (expand_mult): Special case for -1 as one operand. - -Mon Aug 29 12:14:51 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * stmt.c (expand_goto_internal, expand_fixup): New arg LAST_INSN. - (expand_return): Pass that arg in tail-recursive case. - (other callers): Pass 0 for that arg. - (expand_null_return): Handle HAVE_return nonzero w/ FUNCTION_EPILOGUE. - (expand_null_return_1): New fn, has guts of old expand_null_return. - (expand_return): Call expand_null_return_1 to pass LAST_INSN arg. - (expand_return): Handle HAVE_return nonzero w/ FUNCTION_EPILOGUE. - (expand_function_{start,end}): Likewise. - (expand_cleanups): Fix typo in recursive-list case. - (move_cleanups_up): New fn. - - * expr.c (expand_call): Execute cleanups_of_this_call on exiting. - Notice calls to __builtin_new (but don't do anything about them yet). - - * reload.c (push_reload): If reloading a (SUBREG (MEM ...) ...), - really reload just the MEM in the MEM's own mode. - - * sparc.md: Define patterns for insns that set the ccs. - Define set-flag insns. - New patterns for indexed load, and for optimizing signed bit fields. - (mulsi3, umulsi3): Give "r" constraint to operand 0. - Peephole optimizers recognize some cases where delay insns are safe. - Changed patterns for call and return insns as well. - - * output-sparc.c (single_insn_src_p): New fn. - (output_delay_insn): New fn. - - * tm-sparc.h (TARGET_EPILOGUE): New target flag. - (NOTICE_UPDATE_CC): New clause for funny PARALLEL with a REG in it. - - * m68k.md (movqi): Use *'s to ensure preferencing d-regs. - - * c-parse.y (datadef): If traditional, no warning about no specs. - -Sun Aug 28 14:34:33 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * tm-i386.h: Define PROMOTE_PROTOTYPES. - POINTER_BOUNDARY now 32. - - * regclass.c (reg_scan): Compute `max_parallel', max # of sets and - clobbers in any insn in this function. - * global-alloc.c (global_conflicts): Use that, not MAX_SETS_PER_INSN. - - * stmt.c (expand_asm_operands): MAX_SETS_PER_INSN limits # output ops. - - * emit-rtl.c (init_emit_once): Make elt 2 of {f,d}const0_rtx nonzero. - - * c-decl.c (lang_decode_option): Handle -Wwrite-string. - * c-parse.y (combine_strings): If that flag, make array of const char. - - * expr.c (expand_expr): for INTEGER_CST, always use immed_double_const; - never do output_constant_def (it didn't work). - Also heed WORDS_BIG_ENDIAN. - - * varasm.c (output_constant): Handle integer CONST_DOUBLEs. - (output_constant_def): Abort if arg is an INTEGER_CST. - - * emit-rtl.c (gen_rtx): Don't return {f,d}const0_rtx for DImode. - -Sat Aug 27 12:37:23 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-decl.c (pushdecl): Global extern decls set TREE_PUBLIC - like local ones. - - * integrate.c (expand_inline_function): Handle parms that were - passed in registers but whose homes are on the stack. - - * varasm.c (force_const_mem): Output ints according to spec'd mode. - ({record,compare}_constant_rtx,const_hash_rtx,decode_rtx_const): - Take mode as argument; pass it along. - - * c-parse.y (read_escape): No warning for `\{' or `\['. - -Fri Aug 26 12:23:07 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * stmt.c (fixup_memory_subreg): Typo calculating big-endian adjust. - - * vax.md (call_value): Handle >255 args as in `call'. - -Thu Aug 25 16:00:51 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * jump.c (delete_jump): Don't delete the cc-setter if it has autoinc. - -Wed Aug 24 16:33:37 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * expr.c (expand_expr): For sun with a COND_EXPR, use SUBTARGET - if validate_subtarget says ok. - - * tree.c (build_index_type): make_index_type moved here and renamed. - - * combine.c (move_deaths_2): New function. - (try_distrib): Use that, not move_deaths. - - * tm-sparc.h (SHIFT_COUNT_TRUNCATED, STORE_FLAG_VALUE): Define them. - - * tm-sparc.h: FUNCTION_{PRO,EPI}LOGUE: Save room for ins and - locals to spill to the frame if any ins *or* locals are live. - - * tm-sparc.h (NOTICE_UPDATE_CC): Delete the clause that always - cleared the cc's for unrecognized insns. - - * reload1.c (reload_as_needed): Don't try to use a spill-reg - in a basic block that wasn't spilled: ignore optional reloads. - -Tue Aug 23 09:45:05 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * output-sparc.c (output_scc_insn): New function. - - * expr.c (expand_builtin, alloca): Round result of alloca - up to a multiple of STACK_BYTES. - - * toplev.c (compile_file): Default main_input_filename is cc1 input. - - * tm-i386.h (FUNCTION_BOUNDARY): 32 avoids extra prefetch. - - * i386.md (movdi, movdf): Add `&' where needed in constraints. - -Mon Aug 22 11:57:51 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * symout.c (symout_finish): Allocate typevector after the symout_types. - -Sun Aug 21 16:10:54 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * tm-3b1.h (ASM_FORMAT_PRIVATE_NAME): Use a `_' as well as `%'. - - * expr.c (expand_expr): Typo setting MODE for MAX_EXPR. - - * Makefile (stage*): If ln fails, copy gnulib to stage*. - (realclean): Do `clean' and then some. - (install): new var USER_H specifies headers to copy. - - * c-typeck.c (build_binary_op_nodefault): LT_EXPR, etc. - on ptr vs int failed to set result_type. - (build_conditional_expr): Don't replace nonzero int - with null_pointer_node. - - * combine.c (remove_links, try_distrib): New fns. - (subst): New simplifications for ZERO_EXTEND, SIGN_EXTEND. - (combine_instructions): Call try_distrib. - (FAKE_EXTEND_SAFE_P): Allow SUBREGs. - - * m68k.md (non-FPA pattern for floatsisf2): Typo, had DF for SF. - -Sat Aug 20 12:04:37 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * integrate.c (copy_address): Variant of copy_rtx_and_substitute. - (copy_rtx_and_substitute): Use copy_address for MEM address that - doesn't satisfy memory_address_p. - - * reload.c (find_reloads): If force_reload set, don't set WIN - for a MEM even if `m', `o' or `g' in constraint. - - * i386.md (expendqihi2): Typo in asm template. - - * toplev.c (rest_of_compilation): Call clear_const_double_mem. - * varasm.c (init_const_rtx_hash_table): Don't call it here. - (immed_real_const): Don't record the rtx in the REAL_CST node. - (force_const_double_mem, clear_const_double_mem): Use cc0_rtx, not 0, - as flag for a CONST_DOUBLE not on the chain. - - * cccp.c (handle_directive): If traditional, do scan strings - but accept unterminated ones. - (collect_expansion): -traditional: Don't recognize comments in strings. - Stringify arguments that appear within strings. - (skip_quoted_string): -traditional: Always exit at newline. - (macroexpand): -traditional: Don't put `"'s around stringified arg. - (macarg): Set stringified_length accordingly. - - * c-decl.c (duplicate_decls): Avoid error redeclaring fcn after - implicit decl if -traditional. - - * toplev.c (announce_function, report_error_function): - Change communication logic between these fcns. - - * c-decl.c (lang_decode_options): Handle -Wall here. - * toplev.c (main): not here. - - * tm-bsd386.h: Don't include tm-i386.h--be like tm-att386.h - -Fri Aug 19 11:08:36 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * config-sun4.h: If sparc, include config-sparc.h. - Never include alloca.h. - - * tm-m68k.h (TARGET_SWITCHES): Define `-mc68020', `-mc68000'. - - * c-decl.c (init_decl_processing): If traditional, use signed sizetype. - - * gcc.c (main): Use stderr for printing version. - -Thu Aug 18 14:42:36 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * Version 1.26 released. - - * m68k.md (movsi): Constraint change for fpa regs. - - * reload1.c (choose_reload_targets): Clear reg_reloaded_contents - for all regs of a multi-reg group. - - * reload.c (find_equiv_reg): HARD_REGNO_NREGS wants mode, not size. - Check properly for overlap against multiword reload regs. - -Tue Aug 16 14:54:18 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * varasm.c, expr.c (immed_double_const): immed_real_const_2 renamed. - - * tm-i386.h (SFVALUE): Should be `double'. - * tm-i386v.h (SFVALUE): Don't override it. - - * tm-i386.h (ASM_OUTPUT_ASCII): Don't define it. - * tm-att386.h: Definition moved here. - - * tm-bsd386.h: New file, for Sequent. - * tm-seq386.h: New file, for Sequent. - * config-i386.h: New file, for Sequent. - - * expr.c (push_block): Take account of STACK_POINTER_OFFSET. - (expand_call): Therefore need not do so here. - - * optabs.c (expand_fix): Typo if going via DImode. - - * reload1.c (choose_reload_targets): Don't * reload_reg_rtx if 0. - -Mon Aug 15 01:11:49 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * integrate.c (copy_for_inline): Don't try copying 0-length vector. - (copy_rtx_and_substitute): Likewise. - - * m68k.md (andsi3): use clrw instead of andw #0. - - * print-tree.c (walk): Don't omit permanent nodes reach from temps. - - * m68k.md (zero_extend...): Reinstall the old zero-extend insns - without names, so they can help the combiner. - - * expr.c (expand_expr): Don't use hard regs as subtargets. - * combine.c (FAKE_EXTEND_SAFE_P): Always consider MEMs safe. - * reload.c (find_reloads): For (SUBREG (MEM ...)) set force_reload. - - * c-parse.y (redescape): Don't warn for `\('. - - * reload.c (find_reloads_address): #if was backwards. - -Sun Aug 14 16:52:22 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-typeck.c (shorten_compare): Change switch to chain of ifs. - - * tm-ns32k.h (PRINT_OPERAND): CONST_DOUBLE contains a double - even if it's SFmode. - (FUNCTION_PROLOGUE): If MAIN_FUNCTION_PROLOGUE defined, run it. - - * cccp.c (file_buf): Rename field `free' to `free_ptr'. - - * Makefile (ALLOCA, MALLOC, LIBDEPS): New variables for easier - customization. Executables depend on LIBDEPS instead of OBSTACK1. - (cccp): Deps and libs now work like the others. - - * output-i386.c (notice_update_cc): Rewritten for clarity. - - * tm-i386.h (OUTPUT_JUMP): If CC_IN_OVERFLOW, abort. - - * recog.c (push_operand): Test for stack_pointer_rtx. - - * integrate.c (copy_rtx_and_substitute): Don't submit push-operands - to `memory_address'--it would lose on machines where pushing is - a special insn, not an addressing mode. - - * output-i386.c (top_dead_p): No more redundancy--that didn't work. - Now one method if optimized, one for call_insns if noopt, one for - other insns if noopt. - (call_top_dead_p): fp_top_dead_p renamed - and only the call-insn clause remains. - - * i386.md (cmpsf, cmpdf): Output was backwards. - (", tstsf, tstdf): Set CC_IN_80387. - (incb pattern): Restrict allowable registers. - (movsf, movdf): Call top_dead_p only when absolutely necessary. - (call_value): Use top_dead_p, not subroutine. - -Sat Aug 13 15:19:23 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * stupid.c (stupid_life_analysis): If only 1 reg class, - call stupid_find_reg only once. - - * stmt.c (expand_function_start): - Clear current_function_pretend_args_size. - - * expr.c (store_constructor): If target is hard reg, go via a pseudo. - - * varasm.c (real_constant_chain): Now static in this file. - (force_const_double_mem): Put R on chain if not already on. - (clear_const_double_mem): Set XEXP (,2) to 0; - also clear real_constant_chain and the chain links. - * emit-rtl.c (init_emit_once): Put 0 in XEXP (,2) of {d,f}const0_rtx. - * cse.c (canon_hash): For CONST_DOUBLE, ignore elts other than 0,1. - -Fri Aug 12 11:48:38 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * reload1.c (order_regs_for_reload): Handle REG_ALLOC_ORDER more spots. - - * global-alloc.c (find_reg): error handling REG_ALLOC_ORDER; - also error skipping regs known to be hopeless. - * local-alloc.c (find_free_reg): error skipping hopeless regs. - * stupid.c (stupid_find_reg): likewise. - - * local-alloc.c (qty_compare_1): typo, had q1 for q2. - - * expr.c (expand_expr): Don't use supplied target when optimizing - arithmetic using a comparison or conditional; that target could be - needed for the result of the comparison. - - * reload1.c (reload): Don't set reg_equiv_constant for hard regs. - - * stupid.c (stupid_life_analysis): Ignore reg R if regno_reg_rtx[R]==0. - - * symout.c (symout_finish): Use perm. links in permanent_fwd_refs. - - * i386.md (movhi, movqi): Check no_labels_between_p. - -Thu Aug 11 10:44:46 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * c-parse.y (yylex): Out-of-range float is just a warning. - - * tm-gnx-v3.h: New file for Genix. - * ns32k.md (movsi, call, call_value): GNX_V3 conditionals. - * tm-ns32k.h (PRINT_OPERAND_ADDRESS): Changes for Genix. - - * ns32k.md (insv patterns): Operand 0 is read-write. - - * i386.md (tstsf, tstdf): Don't push the arg if already in st(0). - - * varasm.c (output_constant_def): If EXP is permanent, the rtl is too. - - * tm-*.h (ASM_OUTPUT_{LOCAL,COMMON}): New 4th arg, rounded size - vs unrounded size. - * varasm.c (assemble_variable): Pass new arg. - * symout.c (symout_init): Likewise. - - * cccp.c (rescan): Don't let char const cross lines. - (skip_quoted_string, macarg1, discard_comments): Likewise. - - * expr.c (expand_expr, VAR_DECL case): handle flag_force_addr. - - * tm-i386v.h (TAREGT_DEFAULT): Assume 80387. - * config-i386v.h (alloca): Use __builtin_alloca under GNU C. - -Wed Aug 10 11:23:06 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * reload.c (find_reloads): Alternative loses - if it has no regs for a reg operand. - - * tm-sun3.h (STARTFILE_SPEC): Define, for fpa's sake. - * tm-m68k.h: New hard regs, reg classes, reg class letters, - target flag and switch, operand syntax and CC handling for fpa. - * m68k.md: Add fpa insn patterns. - * output-m68k.c (standard_SunFPA_constant_p): New fn. - (output_move_const_{single,double}): Handle fpa regs. - (singlemove_string): Handle fpa regs. - - * stmt.c (fixup_memory_subreg): Result had wrong mode. - - * ns32k.md (insv patterns): Adjust bit-number along with address. - - * sparc.md (negdf2, absdf2): Order of the words was backwards. - - * reload1.c (new_spill_reg): End confusion about meaning of 1st arg. - Arg counted_for_nongroups had wrong type. - - * tm-m68k.h (FUNCTION_{PRO,EPI}LOGUE): Round frame size to word bdry. - -Tue Aug 9 07:53:59 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * tm-i386.h (ASM_OUTPUT_ASCII): Don't lose the sign bit. - - * tm-i386v.h (STARTFILE_SPEC, LIB_SPEC): Use crt1.o, crtn.o. - - * stmt.c (fixup_var_refs_1): fixup all memory subregs. - - * reload1.c (choose_reload_targets): Don't strip paradoxical - subregs from values to be reloaded. - - * cccp.c: Comment out text after #endif. - - * c-parse.y (init): Allow empty braces as init; warn if pedantic. - - * c-decl.c: Move C-specific options from toplev.c. - * c-tree.h: Move their externs from flags.h. - * c-decl.c (lang_decode_option): New fn called by `main'. - * toplev.c (sorry, really_sorry): New error reporting fns. - * c-decl.c (language_string): New var, name of this language. - - * c-parse.y: Don't include flags.h. - * dbxout.c: Do include it. - - * dbxout.c (dbxout_type): Handle function fields and static fields - and basetypes. Handle METHOD_TYPE and REFERENCE_TYPE. - Abort on unexpected tree code. - (dbxout_args): New fn to output prototype arg types. - (everywhere): Use IDENTIFIER_LENGTH instead of strlen. - (dbxout_type_name): Cleanup; avoid strlen. - - * local-alloc.c (reg_is_set): Don't call {post_,}mark_life for pseudos. - - * tree.h (TYPE_BASECLASSES): New field in type nodes. - - * ns32k.md (insv patterns): Was adjusting the address wrong. - - * c-decl.c (grokdeclarator): Just a warning for inline varargs fn. - -Mon Aug 8 08:16:46 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * varasm.c (immed_real_const_2): Guts of creating a CONST_DOUBLE. - * expr.c (expand_expr): Use that for 64-bit int constants. - - * loop.c (invariant_p): Don't check x->unchanging; it's not safe. - - * c-typeck.c (build_indirect_ref): Handle flag_volatile here - so that it propagates to component_refs. - * expr.c (expand_expr): No need to handle it here. - - * integrate.c (save_for_inline, expand_inline_function): - Set up insn_map to record mapping of old uids to copied insns. - (copy_for_inline, copy_rtx_and_substitute): Map 'u' refs via insn_map. - - * emit-rtl (emit_label, emit_barrier): Return what was emitted. - - * sdbout.c (sdbout_filename): Split off from sdbout_init. - * tm-encore.h, tm-3b1.h, tm-vaxv.h, tm-att386.h (ASM_FILE_START): - Call sdbout_filename. - - * toplev.c: Better messages for invalid options. - - * tm-m68k.h (PRINT_OPERAND_ADDRESS): Handle labelref+basereg. - - * tm-3b1.h (PUT_SDB_DIM): Override sdbout's definition. - (ASM_FORMAT_PRIVATE_NAME): Override tm-hp...s definition. - (PUT_SDB_PLAIN_DEF): Prepend `~' to specified name. - (SDB_GENERATE_FAKE): Prepend `~'. - - * gcc.c: Include config.h before obstack.h. - -Sun Aug 7 11:17:56 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * stor-layout.c (layout_decl): Do nothing with CONST_DECL. - Treat FRIEND_DECLs like variables. - (layout_record): Handle VAR_DECLs and FUNCTION_DECLs in the fieldlist. - Handle basetypes (almost like fields). - (layout_type): Handle REFERENCE_TYPE and METHOD_TYPE. - - * tree.c (temp_tree_cons): New fn. - (array_type_nelts, simple_cst_equal): New fns. - (lvalue_p): CALL_EXPR is an lvalue if it returns REFERENCE_TYPE. - () Manage TYPE_REFERENCE_TO. - (TYPE_HASH_SIZE): Bigger. - (type_list_equal): Compare the TREE_PURPOSE fields. - (build_reference_type, build_method_type): New fns. - - * stmt.c (block_stack): Add field `cleanups' to each element. - (expand_{start,end}_bindings, expand_decl): Update that field. - (stack_block_stack): Now includes blocks that have cleanups. - (goto_fixup_chain): Add field `cleanup_list_list'. - (expand_goto_internal): Execute cleanups for blocks being exited. - (expand_fixup): Make a fixup if any block has cleanups. - (fixup_gotos): New args CLEANUPS and DONT_JUMP_IN. - Execute cleanups for blocks being exited, or add to cleanup_list_list. - (expand_end_bindings): New arg DONT_JUMP_IN. Execute any cleanups. - (expand_decl): New arg CLEANUP. - (expand_cleanups, fixup_cleanups): New functions. - * c-decl.c: Calls to expand_decl pass new arg. - * c-parse.y: Calls to expand_end_bindings pass new arg. - - * stmt.c (expand_return): Handle INIT_EXPR, or bare RESULT_DECL. - - * stmt.c (case_stack): Add field `has_default' to each element. - (pushcase,expand_end_case): Maintain and use that field. - - * stmt.c (pushcase): Handle RANGE_EXPR cases. - (pushcase_range): Create RANGE_EXPR cases. - - * final.c (final): Always pass 3 args to ASM_OUTPUT_CASE_END. - * tm-3b1.h: Delete offending spaces. - -Fri Aug 5 16:17:16 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * integrate.c (copy_rtx_and_substitute): Don't make fp+reg+const - without an intermediate temporary reg. - - * print-tree.c (dump): Don't print an identifier's chain. - - * toplev.c (compile_file): Treat `.i' suffix like `.co'. - - * gcc.c: New config macro CC1_SPEC: extra switches for cc1. - Make a new spec for `.i' files. - - * c-decl.c (pushdecl, finish_decl): Delete duplicate tests. - - * varargs.h: Maybe include va-sparc.h or va-spur.h. - * va-sparc.h: New file. - * va-spur.h: renamed file. - - * tree.h ({TYPE,DECL}_LANG_SPECIFIC): Types and decls can point to - language-specific structures containing other info. - * print-tree.c (dump): Hooks for printing the language-specific - data in types and decls. - -Thu Aug 4 08:54:30 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * tree.def: Add some tree codes for C++. - - * Rename files: parse.[yh] -> c-parse.[yh], decl.c -> c-decl.c, - typecheck.c -> c-typeck.c. - Part of tree.c split out to c-convert.c. - - * expr.c (push_block): No longer static. - (expand_expr): Handle REFERENCE_EXPR and INIT_EXPR. - (expand_call): Turn a METHOD_TYPE to a FUNCTION_TYPE. - This is probably not all that is required. - - * parse.y (yylex): Use p->rid to check for `signed' and `inline'. - - * tm-sparc.h (ASM_OUTPUT_SOURCE_LINE): typo. - - * sparc.md: Add a pattern for andcc. - (cmpsf): Clobber reg 32 in DFmode. - (branches): There are no unsigned floating branches; abort. - (bgt): Correct name of floating variant. - (mov?i): Load small constants via mov. - (movdf for constants): Use mov, not add, to move regs. - (movsf, floatsi*, fix*): Simplify reg-to-reg-via-mem move generation. - (trunc*): Use mov, not or, to move regs. - (negsi2, one_cmplsi2): Avoid "neg" and "not" assembler syntax. - (call...): Generate "call" insns; handle #-reg-parms value. - * Define some peepholes for return insns. - - * tm-sparc.h (TARGET_SUN_ASM): New target flag. - (TARGET_DEFAULT): Now 1. - (FRAME_POINTER_REQUIRED): Now 1. - (STARTING_FRAME_OFFSET): Now -16. - (LEGITIMATE_CONSTANT_P): Only CONST_DOUBLEs fail. - (FUNCTION_{PROLOGUE,EPILOGUE}): Rewritten. - - * output-sparc.c (small_int): Test for int that mov can load. - (singlemove_string): Use mov, not add. - (output_move_double): Changes for overlap and for use of ldd, std. - (output_fp_move_double): Use ldd, std when safe. - (make_f0_contain_0): Simplify. - - * integrate.c (expand_inline_function): Some special CALL_INSN - handling no longer needed due to REG_FUNCTION_VALUE_P. - - * m68k.md (movqi): Constraints allow moving areg to areg. - -Wed Aug 3 08:29:31 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * Version 1.25 released. - - * integrate.c (expand_inline_function): Don't let MEM be inline_target. - -Tue Aug 2 09:13:37 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * integrate.c (INTEGRATE_THRESHOLD): New macro, default dfn here. - (function_cannot_inline_p): Use it. - - * rtl.h (REG_FUNCTION_VALUE_P): New macro. - * stmt.c (expand_function_start): Set that flag in the return reg. - * integrate.c (expand_inline_function, copy_rtx_and_substitute): - Test that flag to test for the return value. - * expmed.c (expand_fixed_bit_field, expand_mult, expand_divmod): ditto. - FUNCTION_VALUE_OUTGOING_REGNO_P no longer needed. - -Mon Aug 1 02:46:08 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * integrate.c (copy_rtx_and_substitute): If NO_FUNCTION_CSE, - don't break out constant fcn addresses here. - - * expmed.c (expand_fixed_bit_field): Tests of FUNCTION_VALUE_REGNO_P - were backwards. - -Sun Jul 31 13:10:07 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * recog.c (indirect_operand): New function. - - * output-i386.c (print_operand): define %*. eliminate %s. - (fp_top_dead_p): In nonopt case, skip stack-adjusts while looking - for the insn that uses the function value. - - * varasm.c (text_section, data_section): New functions. - Replaced explicit printfs elsewhere with calls to them. - * final.c (final_start_function): Use these fns. - * sdbout.c (sdbout_one_type): Use text_section. - * tm-att386.h (ASM_OUTPUT_LOCAL): Use data_section. - - * expr.c (prepare_call_address): Don't pass const via reg if no -O. - - * tm-sparc.h (FUNCTION_{PROLOGUE,EPILOGUE}) Round the size of saved - registers. Fix bug counting saved registers. - - * tm-sparc.h (ASM_OUTPUT_SOURCE_LINE): Define this macro. - - * tm-sparc.h (DEFAULT_SIGNED_CHAR): Now 1. - - * expr.c (expand_builtin, alloca case): Adding stack offset needs - special code if TARGET is a MEM. - - * dbxout.c (dbxout_init): Define Ltext: after the reference to it. - - * tm-3b1.h (ASM_OUTPUT_CASE_LABEL): `short 0' triggers assembler bug; - `short L%nn-L%nn' supposedly works. - -Sat Jul 30 00:25:52 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * sparc.md (floatsidf2): Minor change in output. - (fix_trunc{sf,df}si2): Similar. - - * output-sparc.c (output_fp_move_double): Minor change in output. - - * stmt.c (assign_parms): Don't count stack space for struct value - address if the function does not have one. - - * sdbout.c: Output .dim's and total size for arrays. - Detect bit-fields properly. - Changed handling of structure tags. - - * reload1.c (new_spill_reg): counted_for_nongroups is a new arg; - store 1 in it if this reg is needed for max_nongroups. - - * reload1.c (choose_reload_targets): Allow inheritance of DFmode - if it needs only one register. - - * reload1.c (choose_reload_targets): Delete the death-note from the - store-insn of an inherited reload if PRESERVE_DEATH_INFO_REGNO_P. - - * reload.c (push_reload): Crash if PREFERRED_RELOAD_CLASS is NO_REGS. - (find_reloads): Smarter handling of forcing CONST_DOUBLE into mem. - Check PREFERRED_RELOAD_CLASS & do this if it says NO_REGS. - - * reload.c (subst_indexed_address): Handle case with 2 regs - and no constant term. - - * local-alloc.c: New variable qty_n_refs, set from reg_n_refs - and tested in qty_compare{,_1}. - (combine_regs): Update qty_n_refs. - Update qty_preferred_or_nothing more intelligently. - - * regclass.c (regclass, reg_class_record, record_address_regs): - Count the number of refs to each reg along with the costs, - and use it when computing the preferred_or_nothing flag. - (Can't use reg_n_refs since that is weighted by loop depth). - - * global-alloc.c (global_alloc): Enable test of OVERLAPPING_REGNO_P - for setting no_global_alloc_regs. - - * expr.c (prepare_call_address): Use force_reg, so it gets a REG_EQUIV. - - * optabs.c (can_{fix,float}_p): Return enum insn_code, not a function. - (init_{fix,float}_tab): Store enum insn_code's in fixtab and floattab. - (expand_{fix,float}): Change calls to can_{fix,float}_p. - Also, use emit_unop_insn to make the actual insns. - -Fri Jul 29 02:42:40 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * cccp.c (initialize_char_syntax): If dollars_in_identifiers is 0, - set entries for `$' to 0. - Set entries to 1 rather than incrementing them. - -Tue Jul 26 11:14:22 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * varasm.c (assemble_variable): Make SDB output only if top-level. - - * local-alloc.c (reg_is_set): Arg to mark_life is regno, not qty. - - * output-ns32k.c (print_operand_address): New flag SEQUENT_BASE_REGS - * tm-sequent.h: Define that flag. - - * Makefile: add some missing deps. - - * tm-encore.h (ASM_FILE_START): Changed to do nothing. - - * sdbout.c (sdbout_init): Fix two dumb errors. - - * sdbout.c (sdbout_end_epilogue): No longer takes arg. - Examine current_function_decl here, not in caller. - * final.c: Call changed. - -Mon Jul 25 01:32:54 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * stor-layout.c (layout_record): Handle PCC_BITFIELD_TYPE_MATTERS. - - * tm-3b1.h (__PTR_TO_INT, __INT_TO_PTR): Define these, to alter - parts of obstack.h. - -Sun Jul 24 17:56:53 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * Padding for an arg may now go below or above it; new macro - FUNCTION_ARG_PADDING can now choose which, or can inhibit padding. - This makes for compatibility with PCC. - * expr.h: Default definition of that macro. - * expr.c (emit_push_insn): Put the padding above or below. - (expand_call): Don't count the padding if none wanted. - * stmt.c (assign_parms): Adjust parm stack addr if padded below. - Don't count the padding if none wanted. - * tm-3b1.h: Define FUNCTION_ARG_PADDING: no padding for > 4 bytes. - - * final.c (alter_subreg): Now returns the altered value - (but may still modify the original structure). - Handles (SUBREG:DI (CONST_DOUBLE:DF...)) by returning the CONST_DOUBLE. - - * m68k.md (DImode push): now allows `F'. - * ns32k.md (movdi): now allows `F'. - - * tm-m68k.h (FIX_FRAME_POINTER_ADDRESS): - Handle indexed references to frame pointer. - * tm-i386.h, tm-m88k.h, tm-sparc.h: Likewise. - - * cse.c (predecide_loop_entry): Must search for the loop top label. - -Sat Jul 23 08:53:01 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * parse.y (yylex): typo in wide strings. - - * tm-vaxv.h, config-vaxv.h: New files for sysV on vax. - - * config-sun4.h: If sparc and not compiling with GCC, include alloca.h. - -Fri Jul 22 02:38:02 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * tree.c (build_real_from_int_cst): CHECK_FLOAT_VALUE at proper place. - - * tm-hp9k320.h ({TEXT,DATA}_SECTION_ASM_OP): Should not include a tab. - * final.c (final_start_function): Don't output a tab before those. - - * sdbout.c (PUT_SDB_EPILOGUE_END): New macro. - * sdbout.c (sdbout_end_epilogue): New function to output the C_EFCN. - Like former sdbout_mark_end_function. Uses that macro. - * final.c (final_end_function): Call that function. - * tm-3b1.h: Override PUT_SDB_EPILOGUE_END like the other PUT_SDB... - - * tm-3b1.h (PRINT_OPERAND_ADDRESS, ASM_OUTPUT_INTERNAL_LABEL, - ASM_OUTPUT_CASE_{LABEL,END}): Put a % in names of internal labels. - (ASM_GENERATE_INTERNAL_LABEL, ASM_OUTPUT_ADDR_{VEC,DIFF}_ELT): - New macros, for same reason. - (FUNCTION_PROFILER): New macro, for % and also to put addr in a0. - - * final.c (output_source_line): For fcn's first line, use lineno 1. - * sdbout.c (sdbout_end_function): Clear sdb_begin_function_line - so can recognize first line of next function. - - * sdbout.c (sdbout_init): Output the .file pseudo here. - * tm-3b1.h, tm-att386.h (ASM_FILE_START): Don't do it here. - - * sdbout.c (PUT_SDB_VAL): Output leading tab, like the other macros. - * tm-3b1.h (PUT_SDB_VAL): Likewise. - - * regclass.c (regclass): Cast enums to int, not char. - * varasm.c (record_constant): Likewise. Avoids 3b1 PCC bug. - - * decl.c (pushdecl): Better choice of error message for extern/static. - - * emit-rtl.c: Do look for STRUCT_VALUE_INCOMING_REGNUM. - -Thu Jul 21 02:13:03 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * cse.c (canon_hash): CONST_INT case failed to add to prev. value - of HASH; was inconsistent with cse_insn mem address hashing. - - * m68k.md (divide insns): Alternate 3B1 syntax for `swap' insn. - -Wed Jul 20 18:27:10 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * m68k.md: In shift-by-24 patterns, rejects autoincrement memrefs - since they are mode-dependent. - -Tue Jul 19 13:01:38 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * parse.y (check_newline): Handle #ident by writing .ident to output. - * cccp.c: Don't handle #ident; delete IDENT_DIRECTIVE conditionals. - - * stmt.c (expand_end_case): In compares, put constant arg second. - - * jump.c (jump_optimize): Delete conditional jump if followed by - an unconditional jump to the same place. - -Mon Jul 18 17:49:13 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * emit-rtl.c (init_emit_once): Now STRUCT_VALUE_INCOMING is an - expression for an rtx. It can make a MEM. Likewise STRUCT_VALUE - for outgoing structure value addresses. - - * stmt.c (assign_parms): If incoming struct addr on stack, leave room. - * expr.c (expand_call): If outgoing addr on stack, push it like an arg. - - * PROMOTE_PROTOTYPES means if proto says `char', pass `int'. - * decl.c (get_parm_info): Alter DECL_ARG_TYPE to do this. - * typecheck.c (actualparameterlist): Convert value for this. - * tm-m68k.h: Define PROMOTE_PROTOTYPES. - -Sun Jul 17 14:25:47 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * jump.c (jump_optimize): peephole can delete insns following INSN. - Set NEXT after peephole. - - * decl.c (finish_decl): Always restart perm alloc if global. - - * stmt.c (assign_parms): When a float is passed as double, store the - float in low-numbered word. Avoids trouble with parm_map in integrate. - - * vax.md: New pattern for decrement and compare against -1. - -Sat Jul 16 14:18:00 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * decl.c (pushdecl): Ignore previous decl if it's really an error_mark. - - * stmt.c (expand_start_case): Make sure case_stmt.start is a NOTE. - - * combine.c (subst): In the simplification for - (set (zero_extract ...) (and/or/xor (zero_extract ...) const)), - require same memory location in both extracts. - - * *386*: New files. - - * cse.c (fold_rtx): Save time in memory address if it didn't change. - Don't replace cheaper expression with coslier one. - (cse_insn): Reenable generation of REG_WAS_0. It wasn't obsolete. - - * cccp.c: `ident' has 5 letters. - - * final.c (output_source_line): SDB can't handle multiple source - files, so ignore line-NOTEs for other files. - - * hard-reg-set.h: New var reg_class_size (# regs in the class). - * regclass.c (init_reg_class): Set it up. - - * reload.c (find_reloads): If an earlyclobber is in a class of size 1 - as an output, reload it as input instead of as output. - - * reload1.c (choose_reload_targets): Improve elimimation of spilled - pseudos made dead by reloading: if pseudo is limited to one block - and that block contains just stores, delete all the stores. - - * reload1.c (choose_reload_targets): reg_has_output_reload is now - static and survives through reload pass. - (forget_old_reloads): Don't cancel data on spilled regs of output - reloads of the insn just made. - - * sdbout.c (sdbout_one_type): Go to .text before defining a type. - (sdbout_block): Test against do_block was backwards. - - * stmt.c (expand_end_function): New args to make a NOTE for last line. - * decl.c (finish_function): Pass the args. - - * rtl.c (no_labels_between): New function. - * vax.md (movsi): Call it. - - * print-tree.c (dump): Don't follow chain of a decl. - - * rtl.c (volatile_refs_p): Moved from flow.c. - -Fri Jul 15 13:36:20 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * sdbout.c (PUT_SDB...): Allow config to override any of them. - * sdbout.c (PUT_SDB_{BLOCK,FUNCTION}_{START,END}): New macros. - * tm-3b1.h: Override all of them. - * sdbout.c (SDB_GENERATE_FAKE): New macro to create dummy tag name. - (gen_fake_label): Use SDB_GENERATE_FAKE. - * tm-3b1.h: Override its defn. - - * sdbout.c (sdbout_mark_function_end): Unused; deleted. - - * tm-3b1.h: Define SDB_DEBUGGING_INFO. - -Thu Jul 14 01:55:15 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * config-sunv4.h: New file for Sunos version 4. - - * tm-sun3.h (CPP_SPEC): Define mc68010 or mc68020, depending. - -Tue Jul 12 15:31:30 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * stmt.c (expand_fixup, expand_goto_internal): New functions to - emit a jump that can restore the stack level, even without tree node. - (expand_null_return, expand_exit_loop, etc.): Use expand_goto_internal. - (expand_end_function): Do fixup_gotos after emitting return_label. - - * cse.c (predecide_loop_entry): Avoid using JUMP_LABEL. - * flow.c (find_basic_blocks): Avoid using JUMP_LABEL. - - * flow.c (insn_dead_p): Delete special case for stack-adjust insns. - (life_analysis): Mark those insns with INSN_VOLATILE here. - (mark_used_regs): a SET of a hard reg, in a volatile insn, - always makes its source live. - -Mon Jul 11 10:46:26 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * ns32k.md (floatqidf2): Commented out since assemblers warn about it. - -Sun Jul 10 11:49:23 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * decl.c (xref_tag): Default the TYPE_MODE of enum xrefs - to avoid making MEM and REG with VOIDmode. - - * vax.md (call): If > 255 args, pop them explicitly. - -Sat Jul 9 10:53:47 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * symout.c (symout_types): Fix up forward refs to previously - undefined structure types. - (filter_undefined_types): New function. - (symout_finish, symout_function_end): Output any never-defined structs. - * toplev.c (rest_of_compilation): call symout_function_end. - - * parse.y: Don't declare errno if it's a macro. - - * tm-hp9k320 (FUNCTION_PROFILER): Pass ptr in a0, not d0. - - * typecheck.c (truthvalue_conversion): Flush unnec recursive call. - (build_cond_expr): Bug testing zeroness of IFEXP with TREE_LITERAL. - - * cse.c (fold_cc0): Constants not CONST_INT are certainly nonzero. - * fold-const.c (fold): ADDR_EXPR is not equal to zero. - - * cccp.c (macroexpand): Disable the macro even if traditional. - (rescan): Error if use a disabled macro. - - * combine.c (try_combine): Don't substitute a different reg into - an auto-increment. Handle multiple REG_INC notes in I1 or I2. - - * decl.c (implicitly_declare): Don't reuse old implicit decl. - - * varasm.c (assemble_variable): Avoid syntax err if no DBX and no SDB. - * final.c (output_source_line): likewise. - - * fold-const.c (fold): PLUS/MINUS_EXPR: in case of cancellation, - convert result to original type. - - * regclass.c (reg_class_record): Changed arguments include address - of entire vector of constraints. - -Fri Jul 8 07:59:00 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * reload1.c (reload): Find groups of more than 2 registers. - -Thu Jul 7 08:33:07 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * expr.c (emit_push_insn): Typo adjusting arg for bcopy - if not STACK_GROWS_DOWNWARD. - - * gnulib.c (_cmpsf2): Value is int, not SFVALUE. - -Wed Jul 6 11:53:46 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * tm-encore.h, tm-3b1.h: Replace ASM_FILE_START; output a .file. - - * *m88*: New files for Motorola 88000. They don't really work. - -Tue Jul 5 14:40:03 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * local-alloc.c (combine_regs): Don't tie a reg to itself. - - * finxincludes: Make a variable LIB for the target dir. - - * m68k.md (movhi, addhi3, addsi3): Micro-optimize choice of asm insns. - - * expr.c (expand_expr): Use new macros NO_DEFER_POP, OK_DEFER_POP - in several places, to keep stack predictable. - -Mon Jul 4 09:50:18 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * integrate.c (function_cannot_inline_p): Increase threshold size. - - * flags.h (use_gdb_dbx_extensions): New variable. - * toplev.c: - - * sdbout.c (PUT_SDB_TAG): Delete duplicate defn. - - * expr.c (expand_expr): For FIX_TRUNC_EXPR to unsigned short/char, - REALLY go via signed int. - - * loop.c (may_trap_p): Was detecting floating arithmetic incorrectly. - - * tm-news800.h (CPP_PREDEFINES): Add sony and sony_news. - - * parse.y (check_newline): Avoid infinite loop at eof. - -Sat Jul 2 10:35:17 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * Version 1.24 released. - - * stmt.c (expand_asm_operands): Produce proper no-outputs insn. - * recog.c (asm_noperands): Detect no-outputs insns. - (decode_asm_operands): Likewise. - * reload.c (find_reloads): Likewise (add case ASM_OPERANDS:). - - * local-alloc.c (block_alloc): Tests of qty_compare were backwards. - - * flow.c (life_analysis): Turn off code that finds regs live at - function start and marks them not local to any basic block. - - * cse.c (insert_regs): Fix typo (UNITS_PER_WORD). - - * cccp.c: Define max. - - * expr.c (expand_expr): Put each SAVE_EXPR's reg on save_expr_regs, - if not optimizing. - * stmt.c (expand_function_end): Mark each of those regs live - at the end and also retroactively at the beginning of the function. - - * output-vax.c (print_operand_address): New function from old macro. - * tm-vax.h (PRINT_OPERAND_ADDRESS): Call that function. - - * config-vms.h: If not under GNU C, define X_OK, etc. - - * expr.c (move_by_pieces_1): Use * to call GENFUN. - (expand_expr): Compare DECL_FUNCTION_CODE against an enum const. - (preexpand_calls): Likewise. - * genrecog.c (write_tree): Likewise. - * final.c (final): Use * to call the output function. - * reload.c (push_reload): Rename `noshare' to `dont_share'. - - * genoutput.c (output_epilogue): Put more newlines in insn_outfun. - * genemit (gen_exp): Put in more newlines. - -Fri Jul 1 00:23:57 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * global-alloc.c (allocno_compare): Avoid comparisons of floats - since that is sensitive to roundoff errors. - -Thu Jun 30 09:25:40 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * sdbout.c (PUT_SDB_{DEF,TAG}): Use ASM_OUTPUT_LABELREF. - (PUT_SDB_PLAIN_DEF): New name for old defn of PUT_SDB_DEF - (sdbout_one_type): Use PUT_SDB_PLAIN_DEF for `.eos'. - - * tree.c (allocation_temporary_p): New fcn. - (all_types_permanent): New variable. - (make_node): If that's set, make each ...TYPE node permanent. - * decl.c (grokdeclarator): If traditional, make decl data permanent. - (finish_decl): Make the rtl permanent too. - * stor-layout.c (layout_type): If type is permanent, - make its layout data permanent too. - - * cccp.c: Choose C++ or C at run time via var `cplusplus'. - Separate cplusplus_include_default from include_default. - Get GNU-specific include directory names from macros - GCC_INCLUDE_DIR and GPLUSPLUS_INCLUDE_DIR. - (main): Initialize based on CPLUSPLUS; `-+' sets it. - * Makefile: Set *_INCLUDE_DIR based on $(libdir). - -Tue Jun 28 09:25:49 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * tree.c (copy_node): Round LENGTH up to multiple of sizeof (int). - - * expr.c (emit_push_insn): Avoid using PUSH_ROUNDING if not defined. - - * sparc.md (floatsisf2): Insert missing brace. - (mulsi3): Replace reg_o0_rtx, reg_o1_rtx. - - * tm-sparc.h: Define DBX_DEBUGGING_INFO. - - * parse.y (yylex): If traditional, no error for out-of-range float. - - * Makefile: Comment saying how to compile on an Apollo. - - * tm-sparc.h (ASM_FILE_START): Switch to new calling convention. - - * decl.c (init_decl_processing): Create type nodes for 64-bit ints. - (grokdeclarator): use them for `long long'. Warn only if pedantic. - - * optabs.c (init_optabs): Add missing DImode insn names. - - * expr.c (emit_block_move, emit_push_insn): Use movstrqi if appro. - - * expr.c (convert_move): use extendsidi if appropriate. - - * cccp.c (initialize_builtins): Don't install __STDC__ if traditional. - (main): Call initialize_builtins after option processing. - - * integrate.c (output_inline_function): Set current_function_decl. - - * cse.c (fold_rtx): Typo in avoiding 32-bit shifts. - - * cccp.c: Add forward-decl. - -Mon Jun 27 18:06:42 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * hard-reg-set.h (reg_alloc_order): New variable - based on REG_ALLOC_ORDER, a new machine-description macro. - * regclass.c (reg_alloc_order): Define it. - * local-alloc.c (find_free_reg): Handle reg_alloc_order. - * global-alloc.c (find_reg): Likewise. - * stupid.c (stupid_find_reg): Likewise. - -Sun Jun 26 10:47:47 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * Version 1.23 released. - - * tm-3b1.h: Define IDENT_DIRECTIVE. - - * tm-encore.h: Define SDB_DEBUGGING_INFO. - Define SCCS_DIRECTIVE and IDENT_DIRECTIVE. - - * output-ns32k.c: Decl of paren_base_reg_printed must be outside fcns. - - * tm-encore.h (ASM_OUTPUT_DOUBLE): Do 0f, not 0l. - (CPP_PREDEFINES): No -Dns32032. - - * sdbout.c: Include syms.h, not storclass.h. - (unnamed_struct_member): Decl was missing. - (PUT_SDB_INT_VAL, PUT_SDB_VAL): Fix typos. - (sdbout_types, sdbout_one_type, sdbout_parms): Fix typos. - - * Makefile: Add file sdbout.o. - Changed comments pertaining to sysV. - Make a separate target `doc' to make the info files. - - * m68k.md (bit-field insns): Use nonimmediate_operand for the thing - to extract from. - * vax.md (QImode bit-field insns): Likewise. - - * recog.c (nonimmediate_operand): Accept any nonconst general operand. - -Sat Jun 25 07:54:42 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * cse.c (lookup_as_function): arg to exp_equiv_p was missing. - -Fri Jun 24 09:14:47 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * recog.c (memory_operand): Allow (subreg (mem...)). - -Thu Jun 23 07:34:07 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * decl.c (finish_enum): Compute minimum value like maximum. - If minimum is negative, install it in the type and make it signed. - - * stor-layout.c (layout_record): STRUCTURE_SIZE_BOUNDARY is minimum. - (layout_type): A RECORD_TYPE or UNION_TYPE must be BLKmode if - any member is BLKmode. This is to prevent putting it in a register. - (layout_decl): If decl's type is BLKmode, the decl *must* be BLKmode. - - * local-alloc.c (find_free_reg): Never allocate the frame pointer reg. - - * tm-sequent.h (PRINT_OPERAND): Bug in SFmode CONST_DOUBLE. - * tm-encore.h: Likewise. - - * flow.c (flow_analysis): Bug in n_basic_blocks error check. - - * stmt.c (expand_asm_operands): Emit no insn if an arg is erroneous. - -Tue Jun 21 08:34:24 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * reload.c (find_reloads_address): Write back *loc even if - subst_reg_equivs makes no change, in case subst_index_address did. - - * flow.c: Define macros for -1 and -2 as values of reg_basic_block. - (mark_used_regs): Add an `else'; no change in behavior. - (mark_label_ref): Abort if LABEL_REF doesn't contain a CODE_LABEL. - (find_basic_blocks): Extra error check. - - * output-ns32k.c (print_operand_address): Changes in handling of - register-indirect, and of indexing by sb register. - -Mon Jun 20 04:55:38 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * cccp.c (collect_definition): Compute needed space more accurately. - Abort if use more space than was allocated. - (rescan) [USE_C_ALLOCA]: Do alloca (0) after handle_directive. - - * genflags.c (gen_insn): Put parens around defns of HAVE_... macros. - -Sun Jun 19 02:52:53 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * expr.c (emit_push_insn): Consider PARM_BOUNDARY when compensating - for size of a pushed arg to bcopy. - -Sat Jun 18 07:20:54 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * New files sparc.md, tm-sparc.h, config-sparc.h, output-sparc.c. - - * final.c (final): After an ADDR_{,DIFF_}VEC, do ASM_OUTPUT_CASE_END. - * tm-3b1.h: Define ASM_OUTPUT_CASE_END. - (PRINT_OPERAND_ADDRESS): Ref the case tables via an intermediate symbol - `LDnnn' whose def. is output by ASM_OUTPUT_CASE_END. - (ASM_OUTPUT_CASE_LABEL): Add missing newline. - - * reload.c (find_equiv_reg): Reject a MEM containing an autoincrement. - -Fri Jun 17 06:58:37 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * genpeep.c (main): Write `extern' in the decl for `peep_operand'. - - * flow.c (propagate_block): When a dead insn has a REG_RETVAL note, - call mark_set_regs anyway, so that `significant' is updated. - - * jump.c (follow_jumps): New arg IGNORE_LOOPS. If 0, don't follow - the insn at the beginning of a loop that enters the loop; this avoids - interference with loop optimizer. - (jump_optimize, tension_vector_labels): Pass that arg. - - * loop.c (loop_optimize): Mention invalid multiple-entry loops in log. - - * m68k.md (extv, extzv): Fix # of alternatives mismatch in constraints. - -Thu Jun 16 03:06:48 1988 Richard Stallman (rms at corn-chex.ai.mit.edu) - - * genrecog.c (change_state): Was mishandling printing XVECEXP indices - greater than 9. - - * combine.c (subst, simplify_and_const_int): Avoid making SUBREG - of a non-REG. - - * expr.c (expand_expr): For FIX_TRUNC_EXPR to unsigned short/char, - go via signed int. - - * optabs.c (expand_fix): Copy hard_libcall_value reg only once. - - * reload1.c (order_regs_for_reload): Init all elements - of potential_reload_regs to -1. - - * Prevent generation of (set (reg) (plus ... (label_ref ...))). - * explow.c (memory_address_noforce): Like `memory_address' but - never force it into a register. - * expr.c (do_tablejump): Use that. - * m68k.md (casesi): Use that. - - * rtl.h (struct rtx_def, GET_CODE, PUT_CODE): If SHORT_ENUM_BUG, - define the `code' field as a short. - -Wed Jun 15 01:25:57 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * gcc.c (CPP_SPEC): New spec set by config.h gives flags to cpp. - * tm-*.h for m68k: Define CPP_SPEC to define __HAVE_FPU__ on - appropriate conditions. - - * combine.c (subst): Simplify (not (minus x 1)) and (neg (minus x y)). - -Mon Jun 13 02:22:43 1988 Richard Stallman (rms at corn-chex.ai.mit.edu) - - * typecheck.c (build_array_ref): Avoid duplicate errmsg if index - is an error-mark. - -Sun Jun 12 23:04:39 1988 Richard Stallman (rms at corn-chex.ai.mit.edu) - - * cccp.c (handle_directive): If -traditional, quotes aren't special. - (rescan): Assume newline ends a string constant. - - * cccp.c, cexp.y: Make all fcns non-static; add some forward decls. - - * various: add static forward-decls for various functions. - -Fri Jun 10 00:25:18 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * reload1.c (choose_reload_targets): When writing back an incremented - value (handling reload_inc), write back to the real place, not to - OLDEQUIV (a register that holds the same value). - - * tm-m68k.h (LEGITIMIZE_ADDRESS): Don't give force_operand a target. - This can cause the use of multiple insns with same output reg, - which can confuse cse. - - * loop.c (consec_sets_invariant_p): - If invariant_p ever returns 2, we return 2. - New arg is # of consecutive sets to look for, - since this info is no longer in n_times_set at move_movables. - (scan_loop): If consec_sets_invariant_p returns 2, set m->cond. - (move_movables): check consecutive insns if m->consec && m->cond. - - * tm*.h: ASM_DECLARE_FUNCTION_NAME now takes 3rd arg, - the FUNCTION_DECL node. - * varasm.c (assemble_function): Pass this arg. - - * expr.c (expand_call, expand_builtin [alloca]): - If STACK_POINTER_OFFSET is defined, add it to stack pointer contents - before using it as address of actual data on the stack. - * stmt.c (expand_decl): Likewise. - - * stmt.c (assign_parms): If 1st parm named `__builtin_va_alist' - came in regs, pretend it came on stack. - Handle pretending a BLKmode var came on the stack. - If REG_PARM_STACK_SLOT, count stack space for each parm - even if the parm came in a register; and use that stack space - if the parm needs to be addressable or is BLKmode. - Rearrange to simplify conditionals. - -Thu Jun 9 01:21:29 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * local-alloc.c: - `qty_...' vectors' elements for hard-reg-numbers now aren't used. - `reg_qty' elements for hard-reg numbers now aren't used, - and the element for a pseudo is never a hard-reg number. - (local_alloc): No need to reset those elements. - No need to reset elements out of range of prev block's NEXT_QTY. - (reg_is_born, reg_is_set, wipe_dead_reg): - Divide labor in same way for hard regs and pseudos; - simplify using fact that locality-to-basic-block has been precomputed - and recorded in reg_qty; avoid refs to reg_qty[HARDREG]. - (reg_is_born, wipe_dead_regs): Block-number arg no longer needed. - - * local-alloc.c (combine_regs): Remove old code for tying hard regs - to pseudos; great simplification results. - Use find_regno_note, not regno_dead_p. - -Wed Jun 8 00:18:04 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * reload.c (subst_reg_equivs): Set a flag if anything is changed. - (find_reloads_address): Check that flag to avoid extra work. - Also check early for safe reg+const address and avoid work. - - * reload.c (find_reloads): Use loops instead of bcopy. - Check early for insn with no real constraints, and return. - Also check for move from hard reg to hard reg and return. - - * cse.c (canon_reg): Rewrite for speed; use a switch. - (cse_insn): Don't call find_reg_note if REG_NOTES is 0. - - * cse.c (cse_insn): Store modified SET_SRC even if there's a REG_EQUIV. - Inhibition was needed when the SET_SRC was the only place to find the - equivalent value; now it is in the REG_EQUIV note. - - * stmt.c (expand_asm_operands): If NINPUTS is 0, make vec of no elts. - * regclass.c (reg_scan_mark_refs): Don't lose if XVEC (x,i) is 0. - -Tue Jun 7 03:51:28 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * stmt.c (assign_stack_local): If big-endian and MODE is narrow, - the bytes actually used are the least significant. - - * parse.y (skip_white_space): Accept char as arg; let caller read it. - (yylex): Change call. - (check_newline): Return 1st nonwhite char after skipping lines. - (skip_white_space): Change call. - * toplev.c (compile_file): Change call. - - * gcc.c: Pass -traditional to cc1. - - * cse.c (cse_insn): Return very early for (set (reg) (call...)). - Mainly to save time. - (cse-insn) Old code to add REG_WAS_0 note wasted time but did nothing. - - * expr.c (clear_pending_stack_adjust): Really do clear it, - if current fcn doesn't want to be inline. - - * cse.c (cse_insn): Speedup: instead of safe_hash, use canon_hash - or HASHREG. - -Mon Jun 6 21:47:23 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * jump.c (rtx_renumbered_equal_p): Reject ADDR_VEC fast. - - * cse.c (cse_insn): Ignore a REG_EQUIV or REG_EQUAL note if the - equivalent value is the same as the SET_SRC of the insn. - - * flow.c (life_analysis): Don't call volatile_refs_p for a CALL_INSN; - just assume value is 1. - (propagate_block): Don't call mark_{used,set}_regs for a stack-pop - since if it isn't dead it has no effect on any useful life data. - (mark_set_1): Return quickly if setting stack-ptr, and almost as - quickly if setting any hard reg. - (mark_used_regs): Likewise for refs. - Also don't scan the vector of an ADDR_VEC or ADDR_DIFF_VEC. - (volatile_refs_p): Likewise. - - * varasm.c (output_constant): Discard NOP_EXPR and CONVERT_EXPR - in integer case (they were for casting a pointer). - - * parse.y (compstmt_or_error): Parse a compstmt after ignoring error. - Use this for fctn body so that an error after store_parm_decls - won't recover to xdecls and call store_parm_decls again. - Typical cause was missing semi at end of last parmdecl. - - * parse.y: Add missing semicolons in actions. - (yylex): Don't use yylloc. - -Sun Jun 5 16:14:40 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * typecheck.c (build_array_ref): Check arg types here, to make - error message more accurate (not about "addition"). - -Thu Jun 2 02:41:40 1988 Richard Stallman (rms at rice-krispies.ai.mit.edu) - - * cccp.c (collect_expansion): `#' isn't special if -traditional. - - * dbxout.c (dbxout_parms): Don't output a regparm symbol - unless the parm got a hard reg assigned. - - * tm-encore.h (ASM_OUTPUT_DOUBLE): Use 0f... not 0d... - - * tm-vax.h (CHECK_FLOAT_VALUE): Define this. - -Wed Jun 1 17:13:00 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * expr.c (expand_call): Have sequence points between args. - -Tue May 31 00:27:06 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * expmed.c (store_fixed_bit_field): Avoid shifting by 32. - * cse.c (fold_rtx): - * symout.c (subrange_p): likewise. - - * local-alloc.c (block_alloc): If operands 1 and 2 commute, - try tying output to operand 2 if operand 1 won't do. - - * toplev.c (compile_file): Pass main_input_file to symout_init. - - * tree.c (build_real, build_real_from_int_cst): - Call CHECK_FLOAT_VALUE if it's defined, to report out-of-range values. - - * tree.c (build_real, build_real_from_int_cst): New 1st arg TYPE. - * parse.y (yylex): Pass this arg; requires parsing suffixes first. - * fold-const.c (fold, combine, fold_convert): Pass this arg. - Handling of float binops in `combine' simplified. - - * tm-encore.h (CPP_PREDEFINES): Remove -Dencore since CC lacks it. - - * final.c (output_source_line): Let ASM_OUTPUT_SOURCE_LINE - be used for SDB also. - -Mon May 30 00:21:15 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * cse.c (insert): Was inserting in wrong place in list. - (exp_equiv_p): Was failing to check validity when x == y. - - * tree.c (build_pointer_type): Handle saveable_obstack - like current_obstack. - - * decl.c (finish_decl): Error in test for zero-size array warning. - - * reload.c (find_equiv_reg): New arg MODE specifies mode in which - an equivalent value is needed. Equivalence must be good in that mode. - In addition, notice overlap with multiword register modes. - Simplify, knowing that registers have already been renumbered. - It was invalidating memory-goals too easily; setting a reg - only invalidates memory-goal if its address varies. - * reload.c, reload1.c, jump.c: Calls pass the new argument. - - * cccp.c: For correct ANSI, must reject `$' in identifiers. - (dollars_in_ident): Variable says whether to allow them. - (rescan): Handle `$' as randomchar if that's 0. - (main): dollars_in_ident is set to 0 by -$, to 1 by -traditional. - (rescan, do_define): Delete former pedantic warnings for `$'. - (initialize_char_syntax, initialize_builtins): Inits split to two - functions; former is called after options are scanned - so `$' is in is_idchar conditionally. - * gcc.c: For -ansi, pass -$ to cccp. - * toplev.c, flags.h: Define dollars_in_ident. - * parse.y (yylex): Treat $ as punctuation unless dollars_in_ident. - Delete old pedantic warning about $. - * tm-vms.h: Define DOLLARS_IN_IDENTIFIERS as 1. - - * cccp.c (rescan): Preprocessing numbers can have signs, after `e'. - - * integrate.c (expand_inline_function): Abort, don't return failure, - if max_regno is too low. I believe this can't happen. - - * typecheck.c (build_binary_op_nodefault): - For ordered comparisons, no pedantic warning about void *. - For MAX, MIN, ditto, and also don't allow pointer vs 0. - - * typecheck.c (build_unary_op): Don't allow pointer for +. - - * typecheck.c (convert_for_assignment): - Add missing warning for case of unrelated pointer types. - Change criteria for new ANSI C draft. - - * optabs.c (expand_binop): Don't set unused target_is_not_an_operand. - - * fold-const.c (fold_convert): Don't set unused inprec, outprec. - - * emit-rtl.c, parse.y: Delete unused var. - - * stor-layout.c (add_vc_sizes): Unused function deleted. - * loop.c (constant_high_bytes): #if 0 this unused function. - - * gcc.c (fatal): Add missing arg to delete_temp_files. - - * cccp.c (dump_defn_1): Add missing arg to skip_quoted_string. - - * reload.c (find_reloads): If constraints don't fit in an `asm', - print error instead of aborting. - - * regclass.c (reg_class_record): Ignore `&' in constraint. - -Sun May 29 00:20:23 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * Makefile: Run ranlib only if /usr/bin/ranlib exists. - Add comment saying what to do on system V. - - * tree.c (suspend_momentary): Switch to the saveable_obstack - for the sake of inline functions. - - * flags.h (enum debugger): New enum for write_symbols. - * toplev.c, varasm.c, final.c: Use the enum constants where appro. - Add calls to sdbout paralleling the calls to dbxout; - put each in the appropriate conditional {SDB,DBX}_DEBUGGING_INFO. - - * toplev.c (main): Delete -noreg option; it's now the default. - Make -O an alias for -opt. Rename -g to -gg. -g is alias for -G. - Accept and ignore -Wtrigraphs. - * gcc.c: Simplify the specs. - - * toplev.c (compile_file), tm-*.h: - ASM_FILE_START is now a statement, not just a string to be output. - Output it *after* determining the real source file name. - - * fold-const.c (fold): Simplify x >= CST to x > CST-1 (CST positive). - To simplify this, canonicalize relationals to put constat last. - - * decl.c (duplicate_decls): Make a 2nd errmsg to show previous decl. - - * cccp.c (file_size_and_mode): Delete temporary VMS bootstrap patch. - - * tm-att386.h: New file. - - * decl.c (pushdecl): Warn if a local `extern' decl precedes - a file-scope `static' decl. - - * expr.c (expand_call): No warning for failure to inline. - - * expmed.c (extract_bit_field): copy operand 1 of extv or extzv - into register if memory isn't allowed. - -Sat May 28 02:10:56 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu) - - * gnulib.c, Makefile: Delete va_end. - - * final.c, symout.c: Check DBX_DEBUGGING_INFO, not NO_DBX_FORMAT. - - * genemit.c (gen_expand): Notice a CALL inside a PARALLEL. - - * regclass.c (init_reg_sets_1): Part of init_reg_set is put in this - new fn which is called after options are scanned. - Now CONDITIONAL_REGISTER_USAGE can depend on the options. - (fix_register): Just alter the data that init_reg_sets_1 will look at. - - * reload1.c (reload): Don't complain if two different but tieable - modes require groups of the same regclass (assuming same size group). - - * cccp.c: Add 3rd arg to all `open' calls. - - * parse.y (check_newline): Typo prevented ignoring whitespace. - - * cccp.c (perror_with_name): fprintf had harmful extra arg. - - * cccp.c (main, trigraph_pcp): -Wtrigraphs means warn if any trigraphs. - - * emit-rtl.c (gen_sequence): If LEN is 1, avoid looking at PATTERN - of something that doesn't have one. - - * reload1.c (alter_frame_pointer_addresses): frame pointer can - occur by itself, not just inside a PLUS. - (reload): Call eliminate_frame_pointer before reload_as_needed. - Otherwise the latter can make reload insns that copy the frame ptr - to a data reg, but 68k can't copy sp+const to a data reg. - - * decl.c (implicitly_declare): Always save the implicit decl - permanently. Reuse an old one if it exists. - * tree.c (resume_temporary_allocation): Used after `end_temporary...' - to go back to temporary allocation. - - * stor-layout (layout_{type,decl}): Call variable_size. - (variable_size): Turn a size into a SAVE_EXPR and either compute - it right away or put it on a list to be computed later. - (get_pending_sizes): Return that list and clear it out. - * stmt.c (expand_start_function): Tell `variable_size' to compute - sizes right away, and compute those saved on the list. - (expand_end_function): Tell it to put them on a list. - -Fri May 27 00:02:34 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * dbxout.c (dbxout_symbol): For local static var, use 'V', not 'v'. - - * gcc.c (main): Don't handle SIGHUP or SIGTERM if shell ignored it. - - * Makefile, gcc.c: Propagate Make var `libdir' to gcc search path. - - * expr.c (expand_expr): a PARM_DECL with no rtl can occur in size of - `a' in `foo (a,i) int i; struct {int x[i];} a;', so report an error. - - * flow.c (insn_dead_p): insn that makes stack bigger is never dead. - * combine.c (try_combine): Don't splice out stores into stack ptr. - - * reload.c (find_equiv_reg): Test given regno for OVERLAPPING_REGNO_P. - - * varasm.c (assemble_variable): Use saveable_obstack for allocation. - -Thu May 26 01:17:00 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * integrate.c (save_for_inline): Clear unused slots in parmdecl_map. - (There may be some non-parm regs below max_parm_regno.) - * integrate.c (copy_for_inline): Don't crash if parmdecl_map elt is 0. - - * Don't fail to output a static inline function that was referenced - via a local extern decl before its definition. - * expr.c (expand_call): If need to mark a fcn decl addressable, - mark the identifier addressable also. - * typecheck.c (mark_addressable): If marking fcn addressable, - mark the identifier as well. - * decl.c (start_function): If identifier was marked addressable, - propagate it to the function. - - * parse.y (yylex): Check for ERANGE after atof is called. - (Sun doesn't report ERANGE.) - - * loop.c (may_trap_p): Any floating arithmetic may trap. - -Wed May 25 00:03:34 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * parse.y: Delete `noalias'. - (asm_operand): Don't allow this to be empty. - (asm_operands): Do allow this to be empty. - - * reload.c (operands_match_p): Don't let REG and SUBREG match - if the reg isn't a hard reg. - No longer nec. to check reg_renumber, now that reload - substitutes the hard regno. - - * reload1.c (reload): Counting existing spilled groups, - check HARD_REGNO_MODE_OK so we don't get fooled by an odd-even pair. - Spill entire need for new groups before spilling any solitary regs. - Reg already counted against max_nongroups can't become part of a group. - (new_spill_reg): Do bookkeeping associated with a new spill-reg. - (n_spills): This var is now static, no longer passed as arg - within the file. - - (reload_reg_class_lower): Handle all group-reloads before solitaries. - (choose_reload_targets): therefore #if 0 the special code for - finding solitary registers that aren't suitable for groups. - But fix two bugs in it: braino deciding whether a reload - is looking for 1 register (not a group). Use CLASS_MAX_NREGS. - Also braino deciding whether a spill reg can be in a group. - Did not fix bug that it fails to test HARD_REGNO_MODE_OK, - so it might split up an even-odd pair. - - * vax.md: Special patterns for 8 and 16-bit fields, to make - move-insns (like the ones for the 68k). - - * tree.c (convert_to_integer): Pass truncation down thru COND_EXPR - as through a binary operator. - - * typecheck.c (build_cond_expr): If unpromoted operand types match, - don't promote them--let containing expression promote (just once). - -Tue May 24 14:46:26 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * combine.c (subst): Simplify (subreg (sign_extend X) 0). - - * tm-hp9k320.h: Delete NO_DBX_FORMAT. - * Most tm...h files: Define DBX_DEBUGGING_INFO. - * dbxout.c: Change conditional to DBX_DEBUGGING_INFO. - - * integrate.c (expand_inline_function): If inline fcn was declared to - return QI, but actually computes an SI, use SImode for INLINE_TARGET - but actually return a QI. - - * varasm.c (force_const_mem): Failed to determine alignment bdry - from machine mode. - - * jump.c (jump_optimize): Don't delete (move X Y) if X or Y is a - PRESERVE_DEATH_INFO_REGNO_P register. - - * final.c (output_addr_const): In PLUS, output constant term last. - - * final.c (final): Before outputting an insn, do FINAL_PRESCAN_INSN. - - * final.c (next_block_index): No longer static. - (final): Add SDB_DEBUGGING_INFO cases for outputing NOTEs - for beginning and end of a block. - (output_source_line): Add SDB_DEBUGGING_INFO case for line number. - * varasm.c (assemble_function): Add code for SDB symbol output. - - * gnulib.c: Allow config to override INTIFY. - New macro SFVALUE for data type to return a single-float in. - - * combine.c (remove_death): No longer `static'. - - * reload1. (choose_reload_targets): PRESERVE_DEATH_INFO_REGNO_P - selects hard regs for which death info should be updated for final. - - * reload1.c (reload_as_needed): Let INSN_CLOBBERS_REGNO_P - prevent inheritance of certain reloads. - - * reload.c (find_equiv_reg): Let OVERLAPPING_REGNO_P reject - an equiv reg. Needed for funny float regs on 80387. - - * cccp.c (do_ident): Define #ident as a no-op if IDENT_DIRECTIVE. - Warn if pedantic. - (do_sccs): Warn if pedantic. - - * emit-rtl.c (restore_reg_data): Set cur_insn_uid--prevent duplicates. - -Sun May 22 12:25:06 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * Version 1.22 released. - - * reload1.c (reload): Spilling isn't finished till max_nongroups is 0. - - * tm-encore.h (PRINT_OPERAND): No `$' before a CONST. - -Sat May 21 13:08:54 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * fold-const.c (combine): Typo in MIN_EXPR, MAX_EXPR. - - * reload1.c (reload): Was counting insn_groups as total size of groups, - not number of groups. - A new spilled group counts against group-needs of superclasses. - - * parse.y (parmlist{,_or_identifiers}_1): In error case, - return a tree list just as in the other cases. - -Fri May 20 02:14:51 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * config-vax.h, config-m68k.h: If __GNUC__, use builtin-alloca. - - * genpeep.c (match_rtx): Generated code was testing the wrong rtx - when testing an int or string at a nonzero index in the rtx. - - * reload.c (find_reloads): Typo checking `modified' for conflict - with an earlyclobber. - - * reload.c (find_equiv_reg): Reject stack ptr as return value. - - * expr.c (expand_builtin): Alloca must do pending stack adjust. - -Thu May 19 13:01:01 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * flow.c (propagate_block): Skipping back across libcall didn't happen - due to failing to set PREV. - - * expr.c (emit_library_call): Code to increment and decrement - current_args_size broke since emit_call_1 was changed to restore it. - - * combine.c (try_combine): When i1 or i2 auto-incs a reg, don't combine - if i3 uses that reg. - - * config-hp9k3.h: #define bcopy, bcmp, bzero here. - * conf-hp9k320.h: Delete file. - - * integrate.c: Don't include strings.h--no need. - - * stmt.c (expand_asm_operands): Don't make zero-length vectors. - - * loop.c (scan_loop): After a fcn call, maybe-trap insns can't move. - The fcn call might exit and that would prevent the trap. - - * reload1.c (reload): Set reload_first_uid to next uid to be used. - * reload.c (find_equiv_reg): Use reload_first_uid to ignore insns - that are due to reloading--only if reload_reg_p is not 0 or 1. - -Wed May 18 22:11:20 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * typecheck.c (build_unary_op): Don't complain about array - as argument to `!'. - - * decl.c (pushdecl): If locally declaring an extern function, - check the identifier's global value in case it's an inline function. - -Mon May 16 03:06:08 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * output-ns32k.c (output_shift_insn): New fn, maybe turn shift to adds. - (reg_or_mem_operand): Predicate for a non-immediate general_operand. - * tm-ns32k.h (CONST_OK_FOR_LETTER_P): Define letter K. - * ns32k.md: Use output_shift_insn for various addr insns that shift. - Don't allow nonexplicit constants in lprd, multiply or truncate insns. - Use reg_or_mem_operand for constraint in op1 of divide insns; - a constant there causes regclass to screw up. - Split alternative constraints on the bit-field insns to avoid - out-of-range operands in exts, inss. Some cases of extraction - can be done faster via memory. - - * flow.c (mark_set_1): When adding a REG_DEAD note, inc reg_n_deaths. - - * dbxout.c (dbxout_type_def): Do nothing for {integer,char}_type_node. - -Sun May 15 00:56:44 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * tm-sequent.h, tm-ns32k.h, tm-encore.h (PRINT_OPERAND): - Was treating SF's as SI's. - - * expr.c (emit_move_insn): Check all CONST_DOUBLEs for - LEGITIMATE_CONSTANT_P and put them in memory if not. - - * local-alloc.c (combine_regs): Allow a reg to be tied to a qty - if the reg's class is contained in the qty's class - (as well as if the reg's class contains the qty's class as before). - Rename qty_reg_class to qty_min_class and make it the smallest - class of any reg tied to the qty. - (reg_class_subset_p, reg_meets_class_p, update_qty_class): - New subroutines to implement this. - (local_alloc): Init reg_qty to -1 for pseudos not in cur. basic block. - (reg_is_born): Abort if pseudo not in basic block has -2 in reg_qty. - - * jump.c (rtx_renumbered_equal_p): Insist that modes of REGs match. - -Sat May 14 01:05:35 1988 Richard Stallman (rms at lucky-charms.ai.mit.edu) - - * stmt.c (expand_return): Empty frame frame_offset isn't nec. 0. - - * expr.c (emit_call_1): Use stack_size_rtx everywhere appropriate. - - * decl.c (init_decl_processing): Set sizetype to `unsigned long' - if `int' is less than a word. - - * stddef.h (size_t, ptrdiff_t): Both are now long. - -Fri May 13 01:06:00 1988 Richard Stallman (rms at lucky-charms.ai.mit.edu) - - * emit-rtl.c (gen_lowpart): Handle non-lowpart subreg as arg. - - * recog.c (register_operand): VOIDmode means allow any mode. - (immediate_operand, nonmemory_operand): Likewise. - - * emit-rtl.c (classify_insn): Update for changed CALL_INSN format. - (emit): New function to emit an rtl pattern as the right kind of insn. - * jump.c (simplejump_p): No longer static. - - * genemit.c (gen_expand): For match_operand at top level, call `emit'. - Use `emit_call_insn' when appropriate. - (gen_exp): Handle rtx's that contain strings. - - * final.c, symout.c: If not NO_DBX_FORMAT, include stab.h to get the - N_... symbols. Use their default definitions only if they're undef. - - * expr.c (expand_call) [no PUSH_ROUNDING]: Always set argblock - if there are any stack-passed arguments. - - * typecheck.c (build_unary_op): Mark all increment-exprs volatile. - - * recog.c (reg_renumbered_fits_class_p): Delete private copy of - reg_class_contents. - - * reload1.c (forget_old_reloads): Handle PARALLEL case by recursion. - Explicit store into a spilled reg invalidates old reloaded contents; - this can occur when we drop through into a basic block whose need was 0 - (and so whose local pseudos were not spilled). - - * gcc.c (main): If -v, print gcc's own version; also no error msg - if no input files. - - * loop.c (may_trap_p): Mem ref to nonconstant address may trap. - (scan_loop): Check may_trap_p only when insn is in other respects ok. - - * cexp.y: #include config.h (for decl of alloca on some machines). - -Thu May 12 17:24:19 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * regclass.c (regclass): When inserting an insn at start of block, - update basic_block_head. - -Wed May 11 00:47:09 1988 Richard Stallman (rms at corn-chex.ai.mit.edu) - - * stmt.c (assign_parms): DECL_OFFSET should be offset as passed - (not including big-endian width-change correction). - - * typecheck.c (shorten_compare): Set unsignedp[01] right in case - where get_narrower makes no change. - (build_binary_op_nodefault): Likewise for shortening shifts. - - * stmt.c (expand_end_case): Use type_for_size to get the type - to convert the index to, since `int' is wrong if -mshort. - - * decl.c (grokdeclarator): Don't check PARM type for completeness. - (grokparms): If fn definition, check all parm types for completeness. - (store_parm_decls): Likewise. - -Tue May 10 22:42:13 1988 Richard Stallman (rms at corn-chex.ai.mit.edu) - - * typecheck.c (store_init): For invalid init, store error_mark_node. - * varasm.c (assemble_variable): Ignore error_mark as an init. - * stmt.c (expand_decl): If init is error_mark, init to 0 if possible. - This avoids a spurious "uninitialized variable" warning. - -Sun May 8 17:08:07 1988 Richard Stallman (rms at lucky-charms.ai.mit.edu) - - * tm-hp9k320.h: Define STRUCTURE_SIZE_BOUNDARY. - - * decl.c (get_parm_info): Replaces get_parm_types. Returns a tree_list - containing parmdecls and tag list as well as type list. - (grokparms): Accept that tree_list as argument. - (grokdeclarator): Calling grokparms, say "not a definition" for the - function declarators for arg or value types within a definition. - - * parse.y: Call get_parm_info. - (parmlist_or_identifiers): If identifiers, make a tree_list - like the one get_parm_info returns. - -Fri May 6 16:44:19 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * m68k.md (casesi): Delete template aside from match_operand's. - - * tm-encore.h: New file from Robert Brown. - - * ns32k.md: Use %c in some addr insns. - (tst*): Use {d,f,}const0_rtx to make the constant 0; OS-independent. - (call, call_value): Use %? before address in a bsr. - - * output-ns32k.c (print_operand_address): To output a local label, - use `output_asm_label'. - Make SEQUENT_ADDRESS_BUG conditionals happen at compile time. - - * tm-ns32k.h: Delete SEQUENT_HAS_FIXED_THEIR_BUG. - (PRINT_OPERAND): Output nothing for `%?'. - * tm-sequent.h: (PRINT_OPERAND): Output nothing for `%?'. - - * final.c (output_asm_label): No longer `static'. - -Thu May 5 09:03:37 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * explow.c (memory_address): Ignore flag_force_reg unless optimize. - Also ignore it for addresses of stack slots (avoid invalid REG_EQUIVs). - - * typecheck.c (digest_init): If traditional, allow `char x[100]=0;'. - - * tree.c (get_unwidened): Don't alter a COMPONENT_REF if - innerprec equals the precision of the existing type. - It was changing pointers to integers. - - * m68k.md (movdi): Put all fpregs in separate constraint alternatives - and handicap them so spill reg won't be an fp reg. - - * parse.y (yyerror): Use the arg as part of the error message. - - * decl.c (start_function): Give the RESULT_DECL type int rather - than char or short. - * typecheck.c (c_expand_return): Convert value from fn's return type - to the RESULT_DECL's type. - - * Avoid generating dbx xrefs to enums, since dbx loses on them. - Do this by outputting all types in order of definition. - This is done only for top-level types; problem remains for local ones. - - * decl.c (finish_decl): Do rest_of_decl_compilation for TYPE_DECLs. - * toplev.c (rest_of_decl_compilation): Do dbxout_symbol for them. - - * dbxout.c (dbxout_symbol): Check DECL_RTL only for fns and variables. - For a TYPE_DECL, ignore it if the type was already output - and its preferred name is the TYPE_DECL. Else output type in full. - - * decl.c (pushdecl): Don't prefer typedef names to type tag names. - - * stor-layout.c (chain_type): Build chain in forward order. - - - * tm-3b1.h (ASM_OUTPUT_CASE_LABEL): Error getting length of table. - - * tm-3b1.h: #define SGS_3B1 was missing. - - * typecheck.c (build_compound_expr): Ignore non-volatile subexprs. - - * fold-const.c (fold): Simplify (unsigned) foo >= 0, etc. - - * stor-layout.c (layout_type): Set TYPE_PRECISION of ptr types. - -Wed May 4 08:06:25 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * parse.y: Don't use the Bison @ construct, since it makes parser slow. - - * decl.c (finish_function): Delete FILENAME and LINE args. - - * typecheck.c (digest_init): No pedantic warning for array="string". - -Tue May 3 09:09:30 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * toplev.c (main): Ignore `-Wcomment'. - * gcc.c: Pass -Wall to cpp (which treats it like -Wcomment). - - * tm-isi68.h: Greatly simplified; now works only with GAS. - - * tm-m68k.h (EMPTY_FIELD_BOUNDARY): now 16 (right on Sun, ISI and HP). - * tm-sun3.h: No need to redefine it. - - * decl.c (finish_struct): Don't ever make DECL_ALIGN smaller. - - * decl.c: Rename min, max to MIN, MAX. - - * typecheck.c (convert_for_assignment): Avoid warning if assigning - a `void *' from a `const void *'. - - * combine.c (FAKE_EXTEND_SAFE_P): Turn off for mem refs; avoid faults. - -Mon May 2 07:28:27 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * tm-vax.h: Support -mg switch to use g-float instead of d-float. - New macros TARGET_G_SWITCH, ASM_DOUBLE_CHAR. - Changes in TARGET_SWITCHES, ASM_OUTPUT_DOUBLE. - Define code `#' for PRINT_OPERAND. - * vax.md: use `#' in opcodes for doubleword float. - - * tm-vax.h: Define UDIVSI3_LIBCALL and UMODSI3_LIBCALL. - - * cccp.c (main, do_include): Implement -I- switch. - - * jump.c (jump_optimize): When hunting NOTE_INSN_FUNCTION_END, - skip final RETURN (found on the vax). - - * toplev.c (main): -Wall is equiv to all -W switches combined. - - * stmt.c (expand_decl, expand_end_bindings, - expand_{start,end}_function). The -noreg treatment of `register' vars - is extended to vars used as addresses of vars in memory (varying-size - structures). - (use_variable): Emit USE for regs used in specified rtx. - - * cse.c (fold_cc0): Stack-frame addresses are always nonzero. - (fold_rtx): 0200 bit in prev_insn_cc0 means only zeroness is known. - - * parse.y (parmlist): poplevel needs 3 args. - -Sun May 1 07:20:34 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * decl.c (start_function): typo checking for incomplete return type. - - * emit-rtl.c (restore_reg_data): If a pseudo appears nowhere, - don't leave its slot empty; create a pseudo for that slot. - - * Version 1.21 released. - - * expr.c (expand_call): Merge duplicate code for structure_value_addr. - - * emit-rtl.c (restore_reg_data): Delete error check; it's legit for - a pseudo reg to appear nowhere in the rtl. - -Sat Apr 30 07:35:31 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * integrate.c (copy_rtx_and_substitute): Fix typo for arg_pointer_rtx. - - * decl.c (poplevel): Undo previous change with #if 0. - - * stmt.c: `struct nesting' now records the depth on the stack. - Each expand_start... must update and record the depth; - each expand_end... uses macro POPSTACK to pop. - This way, if a level isn't explicitly popped, it won't cause - circular structure. - - * dbxout.c (dbxout_type): Replace with main variant only if incomplete. - - * typecheck.c (build_unary_op): Test of `pedantic' was backwards. - - * expr.c (STACK_BYTES): Typo in definition. - - * typecheck.c (build_binary_op_nodefault): Rename code1 to code0, - and likewise for code2, tt1, tt2. - - * expr.c (expand_call): Wrong arg order for warning_with_decl. - -Fri Apr 29 08:41:06 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * integrate.c (copy_decl_tree): New arg is depth in recursion. - Always discard the outermost LET_STMT being copied; never discard any - others. This way the copied LET_STMTs correspond to the copied NOTEs. - - * varasm.c (decode_rtx_const): For SYMBOL_REF, use string address - not address of the rtx. Library fns have only one copy of the name - but many copies of the SYMBOL_REF. - - * expr.c (emit_call_1): New arg OLD_ARGS_SIZE is used to reset - current_args_size. - (emit_library_call, expand_call): Pass new arg; don't restore it here. - - * flow.c (life_analysis): Don't mark sp live at end if fn is empty. - - * parse.y (parse_or_identifiers_1): Handle `error' in here, not in - callers notype_declarator etc. Also read the closeparen here. - -Thu Apr 28 12:43:52 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * expmed.c (expand_shift): In extzv strategy, handle the operand - predicates for operands 0, 1 and 3. (Not needed for 2.) - * vax.md: extzv pattern for SImode op1 must recognize general_operand - since the pattern named "extzv" allows them. - -Wed Apr 27 00:52:44 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * expr.c (emit_call_1): New arg NEXT_ARG_REG describes # regs - used for passing args. - (emit_library_call, expand_call): Provide that argument. - - * explow.c (round_push): New fn: round arg up to STACK_BOUNDARY. - * expr.c (expand_builtin): Use round_push on size for __builtin_alloca. - * stmt.c (expand_decl): Likewise for variable-size objects. - * expr.c (expand_call): Likewise for args_size.var. - Also use STACK_BOUNDARY to round a constant arg-block size. - Pass emit_call_1 that rounded value. - (emit_library_call): Round arg_size with STACK_BOUNDARY. - * tm-spur.h: Define STACK_BOUNDARY instead of ROUND_CALL_BLOCK_SIZE. - * tm-m68k.h: Define STACK_BOUNDARY as 16. - - * expr.c (emit_call_1): Don't change current_args_size. - (emit_library_call, expand_call): Always restore current_args_size - to ambient value, after calling emit_call_1. - - * tm-hp9k320.h: Don't define USG here. - * config-hp9k3.h: New file. USG defined here. - - * tm-3b1.h: #undef ASM_OUTPUT_ASCII (a defn came from tm-hp9k320.h). - - * decl.c (grokdeclarator primarily): Cast all RID_... to (int) before - using them in arithmetic. Placates CC on Sequent. - - * emit-rtl.c (emit_jump_insn): Return proper value, for a SEQUENCE. - * emit-rtl.c (emit_call_insn): Handle SEQUENCE like emit_jump_insn. - -Tue Apr 26 02:41:26 1988 Richard Stallman (rms at lucky-charms.ai.mit.edu) - - * cccp.c (macroexpand): If traditional, don't disable called macro. - (macarg1): Was failing to count backslash-newline inside a string - in a macro arg as part of file's linenumber. - -Mon Apr 25 18:46:53 1988 Richard Stallman (rms at lucky-charms.ai.mit.edu) - - * jump.c (jump_optimize): Don't do April 20 optimization on first - iteration; let other simpler opts be done before this is considered. - -Sun Apr 24 02:45:28 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * tree.c (staticp): a CONSTRUCTOR can be static. - - * varasm.c (output_constant_def): Always return memref, not address. - - * decl.c (complete_array_type): New fn, make an array type complete - based on an initializer. - (finish_decl): Use complete_array_type. - * parse.y (expr_no_commas): When parsing a constructor, - Use complete_array_type on constructors for incomplete array types. - - * typecheck.c (digest_init, store_init_value,process_init_constructor): - It's now TREE_STATIC, not TREE_ADDRESSABLE, that records that all elts - in a CONSTRUCTOR are simple constants. - (digest_init): A CONSTRUCTOR with non-null type is treated as ordinary - expression, not as a braced initializer. - Allow init of an array from an array-valued expr; warn if pedantic. - * expr.c (expand_expr, CONSTRUCTOR case): Put in memory only if static. - Was making an extraneous level of MEM; output_constant_def does it all. - - * typecheck.c (build_unary_op): Allow ADDR_EXPR of static CONSTRUCTOR. - (default_conversion): Likewise. - (initializer_constant_valid_p): Constructor is ok if static. - - * gcc.c: Change -fnostd... to -nostd... - * cccp.c (main): Likewise. - - * Everywhere: Use REG_NOTE_KIND to get the kind of a reg note. - - * rtl.c (find_regno_note): New function. - * flow.c (flow_deadp): Deleted; caller uses find_regno_note. - * global-alloc.c (reg_dead_p): Deleted. - (global_conflicts): Use find_regno_note instead of reg_dead_p. - - * final.c (final) Use find_reg_note to look for a REG_INC. - * combine.c (insn_has_inc_p): deleted; callers use find_reg_note. - (try_combine): Use find_reg_note whenever looking for a REG_INC. - (regno_dead_p, remove_death): Check the REG_NOTE_KIND before assuming - that the datum in it is a REG. - * reload1.c (reload): Use find_reg_note to find a REG_EQUIV. - - * gcc.c: Don't delete .o files if not all compilations succeed. - (record_temp_file): New arg SUCCESS_ONLY--delete file only if succeed. - (delete_temp_files): New arg SUCCESS says compilation succeeded. - (store_arg): Now 3 possibilities for arg TEMPNAMEP; 2 = del on success. - (do_spec_1): For %d, set delete_this_arg to 2. - - * decl.c (poplevel): Warn about any still-incomplete type-tags. - -Sat Apr 23 02:54:16 1988 Richard Stallman (rms at rice-krispies.ai.mit.edu) - - * expr.c (expand_builtin): For alloca, round arg up to multiple - of PARM_BOUNDARY. Also to convert it to Pmode unless it already is. - - * stor-layout.c (layout_union): Bug in 14 April change: - use caller-specified alignment as minimum, not as maximum. - - * parse.y (skip_white_space): Avoid infinite loop on unterm. comment. - -Fri Apr 22 00:22:59 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * cccp.c: Text following #else or #endif is just a warning. - (rescan): Digit-case was dropping into the $-case; reorder. - - * cccp.c (rescan): Comment start when -traditional was output as - `/*'; should be nothing. - - * jump.c (jump_optimize): Fix prev change: - do nothing if range1end == range2end; - don't lose any NOTEs when splicing. - - * flow.c (propagate-block): For CALL_INSN, clobber the call-used regs - only after mark_set_regs is done; avoids confusion about lifespan - of function value reg. - - * gcc.c: Pass -Wcomment to cpp. - - * cccp.c (main, rescan): If -Wcomment, warn if `/*' inside comment. - - * decl.c (duplicate_decls): Ignore `inline' decl following definition. - - * m68k.md (casesi): Split it up into subroutines, so insns emitted - by the call to memory_address (on 68000) come in the right place. - - * combine.c (record_dead_and_set_regs): Notice storing in a SUBREG. - - * integrate.c (expand_inline_function): Insn to copy a subroutine's - return-value was being output twice, once incorrectly. - - * reload.c (find_equiv_reg): A stack-push insn does not invalidate - an equiv for a goal in memory. - Any other write to memory does invalidate any goal in memory - (PARALLEL case failed to check for this). - - * expmed.c (expand_shift): In the extzv clause, force shifted value - out of memory if -fforce-mem. - - * print-tree.c (prtypeinfo): Some attributes were missing. - (dump): In ..._TYPE nodes, ignore the TREE_CHAIN field. - - * cse.c (note_mem_written): Pushing on stack does not invalidate mem. - - * vax.md (extv/andl peephole opt): Made incorrect code if output was - pushed on stack. Added special case code. - (extv, extzv for SImode operand): Require register_operand. - -Thu Apr 21 00:24:52 1988 Richard Stallman (rms at corn-chex.ai.mit.edu) - - * stmt.c (assign_parms): Round current_function_pretend_args_size up. - - * integrate.c: `pushlevel' arg was missing. - - * dbxout.c (dbxout_type): Undo rest of March 29 change: - When a named type is first seen inside another type, output an xref - and let the real definition come out later. - It is strange that Sun dbx has sometimes appeared to demand - one strategy and sometimes appeared to demand the other. - - * typecheck.c (convert_for_assignment): Allow conversion to or from - `const void *', etc., unless pedantic. - - * decl.c (get_parm_types): For `foo (void){}', set last_function_parms - to nil so store_parm_decls won't lose. - - * combine.c (subst): (plus (plus X N) -N) => X. - - * explow.c ({anti_,}adjust_stack): Don't make a copy of - `stack_pointer_rtx'. - - * integrate.c (expand_inline_function): Typo testing for the - USE that indicates a CALL_INSN's value is being returned. - - * expr.c (expand_builtin, alloca case): Copy arg to reg before - adjusting stack, to avoid invalid insns on some machines. - -Wed Apr 20 00:15:14 1988 Richard Stallman (rms at rice-krispies.ai.mit.edu) - - * typecheck.c (build_binary_op_nodefault): When shortening, - get_narrower may make no change because ARGn is already narrow. - In this case, set UNSIGNEPn from ARGn's type. - - * typecheck.c: Rename ARG1,ARG2 to ARG0,ARG1, etc. in several fns. - - * tm-vax.h: Turn off continuation on DBX output. - - * typecheck.c (build_function_call): Don't change __builtin_ffs to an - FFS_EXPR. Note that __builtin_alloca has always made a CALL_EXPR. - * expr.c (expand_builtin): New function expands all CALL_EXPRs that - are really built-in functions. - (preexpand_calls): Do nothing to a CALL_EXPR for a built-in function. - - * loop.c (count_loop_regs_set): Don't move a reg that is in a CLOBBER. - - * stupid.c (stupid_mark_refs): Was getting hard reg's mode from - the wrong place. - - * rtl.c (note_stores): Typo in checking vector elt for SET vs CLOBBER. - - * stmt.c (expand_end_bindings): If restoring stack level, - first do pending stack adjust (so it won't be done erroneously after). - (expand_goto): likewise. - - * rtl.h: LABEL_NUSES was an rtx. It should be an int. - * stmt.c (expand_label, expand_goto): Delete frobbing with LABEL_NUSES; - the value stored there was the same as the CODE_LABEL rtx. - - * jump.c (jump_optimize): Detect if (foo) ...; else { ... break;} - and change to if (! foo) { ... break;} else ...; so can drop out. - (next_label): New fn returns the next label after given insn. - -Tue Apr 19 21:30:05 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * flow.c (insn_dead_p): Delete special handling for stack ptr. - (mark_set_regs, mark_used_regs): Likewise. - (life_analysis): Mark stack ptr live at end of fn if necessary. - (propagate_block): Mark stack ptr live leading up to a CALL_INSN. - - * jump.c (jump_optimize): #if 0 around stack-adjust-deletion code. - - * cse.c (fold_rtx): Change const_arg from an array to 3 separate - scalars for the first three operands. - Handle SIGN_EXTEND and ZERO_EXTEND. - - * integrate.c (copy_rtx_and_substitute): If arg is 0, return 0. - (expand_inline_function): Separate vars for old pattern and new insn. - - * expr.c (expand_call): Set TREE_ADDRESSABLE if call is not inlined. - -Tue Apr 19 02:25:22 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * Version 1.20 released. - - * tm-ns32k.h: Define new reg class GEN_OR_FLOAT_REGS - so that GENERAL_REGS and FLOAT_REGS have a union. - - * tm-ns32k.h (GO_IF_LEGITIMATE_ADDRESS): Recognize a stack-push. - * ns32k.md: Many constraints must now allow or reject pushes. - Delete the special patterns for pushing. - -Mon Apr 18 06:02:39 1988 Richard Stallman (rms at rice-krispies.ai.mit.edu) - - * reload1.c (forget_old_reloads): For a multiword hard reg, - forget old reloads for each word. - - * reload.c (find_reloads): Typo in calling push_replacement. - - * tm-ns32k.h (HARD_REGNO_MODE_OK): Failed to allow fp regs for SFmode. - -Sun Apr 17 01:21:35 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * tm-sequent.h (PRINT_OPERAND): Handle absolute integer memaddress. - - * ns32k.md: Add DImode push insns. Add QImode and HImode push insns. - Supply missing statement in movsf. - - * dbxout.c (dbxout_type): Don't contin before 1st field of struct. - - * dbxout.c (dbx_continue): Use DBX_CONTIN_CHAR instead of backslash. - - * loop.c (scan_loop): Ov vax, the "loop-entry jump" can be a return, - in which case perhaps there is no label following it. - Detect phoniness of loop before looking for that label. - - * decl.c (init_decl_processing): Builtin fn names start with `__'. - - * typecheck.c (shorten_compare): Warn about constant result only in - cases like (char)x < 0x80, where old C compilers made it -0x80. - - * vax.md: All jbs/jbc/jlbs/jlbc patters with op0 in SImode - must reject mode-dependent memory addresses. - - * recog.c (mode_independent_operand): Test for general operand - that doesn't have a mode-dependent memory address. - - * varasm.c (assemble_function): ASM_DECLARE_FUNCTION_NAME, if def, - is now responsible for outputting the function name as a label. - -Sat Apr 16 05:02:55 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * cccp.c (do_xifdef): Warn about punctuation or other junk in argument. - Warn about no argument. If pedantic, warn if arg starts with digit. - If traditional, ignore all after first non-idchar and never warn. - -Thu Apr 14 01:12:59 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * integrate.c (expand_inline_function): Typo for addressable parms. - - * cse.c (insert_regs): Copying half a DImode into half of another - does not make the two DImode regs equivalent. - - * recog.c (general_operand): Was failing to accept symbol_ref:SI - when MODE arg was VOIDmode. - - * expr.c (preexpand_calls): For RTL_EXPR, do nothing. - - * decl.c (start_enum, build_enumerator): Remember default for next one - as a tree node (so the high-half isn't lost in a negative one). - - * stor-layout.c (layout_{record,union}): Pay attn to initial value - of TYPE_ALIGN in computing final alignment. - (layout_union): Round size up to multiple of the alignment. - - * decl.c (finish_struct): Don't alter size after type is laid out. - Instead, set TYPE_ALIGN before layout_type. - - * reload1.c (choose_reload_targets): Introduce reg_has_output_reload. - If there are two separate reloads (one in and one out) - for the same (hard or pseudo) reg, always set reg_last_reload_reg - based on the output reload. - -Wed Apr 13 21:26:16 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * reload.c (find_reloads_address_1): Always barf if a "constant" - register is autoincremented. - - * parse.y (structsp): suspend_momentary before start_enum; - else some nodes made by start_enum might be momentary. - - * stmt.c (expand_start_case): New arg is nominal type for comparison - (which is the promoted type of the index expression). - (pushcase): Always convert VALUE to that nominal type - before validating it. - * parse.y (case stmt): Promote each case-value before pushcase. - * typecheck.c (c_expand_start_case): Promote the index-expr - to determine the nominal type, before get_narrower. - -Wed Apr 13 12:43:08 1988 Chris Hanson (cph at kleph) - - * tm-hp9k320.h: Define ASM_FORMAT_PRIVATE_NAME. HPUX asm forbids - `.' in identifiers, so use `___' (there is some danger in this choice). - -Tue Apr 12 23:26:48 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * local-alloc.c (block_alloc): Make 1 extra slot in regs_live_at. - - * stmt.c (optimize_bit_field): Function moved from reload1.c. - When need to generate a SIGN_EXTEND or ZERO_EXTEND, make it a separate - insn and use gen_extend_insn to make it. - * optabs.c (gen_extend_insn): New fn, construct body of an insn - to extend Y and store in X. - -Mon Apr 11 19:20:57 1988 Richard Stallman (rms at rice-krispies.ai.mit.edu) - - * decl.c (finish_decl): Error if static var has variable size. - - * parse.y (yylex): Warn if int const is out of range. - - * parse.y: New keyword __alignof. - * typecheck.c (c_alignof): Given a type, return its alignment in bytes. - - * typecheck.c (c_sizeof{,_nowarn)): Don't return integer_one_node; - use build_int to make sure we get something with type `sizetype'. - - * Support variable-sized structures (containing var-sized arrays). - - * stmt.c (assign_parms): Handle parms whose size varies. - Use `memory_address' when constructing memrefs to args; - no need to set `invalid_stack_slot'. - Don't make a REG_EQUIV note for a scalar arg at variable offset. - * stor-layout.c (genop, build_int): No longer `static'. - - * stor-layout.c (convert_units): Optimize ceil (ceil(x,2)*2, 4) etc. - - * stmt.c (expand_decl): Don't abort if var-sized object has init. - Convert variable size from units of DECL_SIZE_UNIT to units of bytes. - - * expr.c (emit_push_insn): Arg ARGS_SO_FAR is now an rtx. - Pay attention to ARGS_ADDR even if machine has push insns. - (expand_call): Handle variable-sized arguments. - If have any such, push entire arg-block in advance. - Record each arg's offset during first loop and don't change args_size - during the actual pushing loop; this way the actual pushing loop - works regardless of arg-order if arg-block was pushed in advance. - (push_block): Copy SIZE to reg unless it's a reg or constant. - - * expmed.c (expand_divmod): If converting CEIL_DIV to FLOOR_DIV, - make new pseudo for incremented value, to help cse understand. - -Sun Apr 10 00:07:45 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * expr.c (emit_library_call): Two dumb bugs calling emit_call_1. - - * dbxout.c (dbxout_symbol): Handle case of (MEM (REG frameptr)). - - * cccp.c (skip_if_group): Ignore quote-chars if -traditional. - (rescan): If -traditional, don't output a space for a comment. - (handle_directive): If not -traditional, output a space for a comment. - -Sat Apr 9 21:26:51 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * decl.c (get_parm_types): `void' type is error, except as entire list. - * parse.y (parmlist_1): `void,...' is error. - - * typecheck.c (pointer_int_sum, pointer_diff): - Use an integer type with at least POINTER_SIZE bits. - * expr.c (expand_expr, ARRAY_REF): Likewise. - * tree.c (type_precision): Prec of a pointer is POINTER_SIZE. - (convert_to_pointer): Directly convert any int w/ width==POINTER_SIZE. - Other int types convert via an int of that width. - (convert_to_integer): Pointers convert via an int of that width. - - * decl.c (init_decl_processing): Use INT_TYPE_SIZE, if def, - to set width of `int' and `unsigned int'. - (make_index_type): Give new type the width of a long int. - - * tm-m68k.h: Add new -mshort which controls TARGET_SHORT. - * tm-m68k.h: Define INT_TYPE_SIZE depending on TARGET_SHORT. - -Fri Apr 8 05:02:59 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * typecheck.c (require_complete_type): Fix typo in detection of `void'. - (build_function_call): Fix backward test to allow `void' values. - - * dbxout.c (dbxout_tags): Output each tag once even if type is defined. - - * m68k.md (movstrictqi): Reject addr-reg always, for both operands. - - * tm-vax.h (STRUCTURE_SIZE_BOUNDARY): Make this always 8, for BSD. - * tm-ultrix.h: New file, overriding STRUCTURE_SIZE_BOUNDARY. - [This change has been taken out; tm-ultrix.h is now equivalent to - tm-vax.h. I must have been confused when testing PCC.] - - * integrate.c (expand_inline_function): Don't let inline_target - be nonzero in BLKmode. - - * decl.c (grokdeclarator): Const array parm becomes ptr-to-const. - -Thu Apr 7 05:02:41 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * genoutput.c (bcopy, bzero): Renamed to mybcopy, mybzero - so variation in C library and config.h won't affect the results. - * genrecog.c (bzero): likewise. - * genextract.c (bcopy): Fn deleted; used only in a string constant. - - * varasm.c (force_const_mem): Fix typo in arg decl. - - * toplev.c (compile_file): init_file with main_input_filename - so dbx output doesn't lack N_SOL symbols. - - * cccp.c (rescan) [CPLUSPLUS]: Put out // comments as // comments. - -Wed Apr 6 14:06:38 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * expr.c: Delete SLOW_ZERO_EXTEND conditionals added March 3. - Now that enums types can be unsigned, this isn't needed. - - * emit-rtl.c (emit_jump_insn): Handle SEQUENCEs. - - * genemit.c (gen_expand): Use emit_jump_insn, emit_label, emit_barrier - when the insn rtl requires it. - - * m68k.md (subsi3): Prefer to avoid reverse-subtraction alternative. - - * stmt.c (expand_end_case): Let CASE_DROPS_THROUGH control what to - emit after the table. - * tm-vax.h: Define CASE_DROPS_THROUGH. - -Tue Apr 5 15:47:10 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * genemit.c (gen_exp): Handle vectors within exprs. - - * stmt.c (expand_end_case): Pass 5th arg (default_label) to gen_casesi. - * m68k.md: Define casesi insn rather than tablejump insn. - - * cccp.c (skip_if_group): For validate_else, pass BP (end of cmd name). - Don't call validate_else if do_else or do_endif will detect error. - - * Bug: inline fcns can refer to the return reg with a strict_low_part - which confuses expand_inline_function. Fix is to change return reg - into inline_target *everywhere* except in or right after a call. - * integrate.c (copy_rtx_and_substitute): Delete special case for SET. - Replace return-value hard regs with INLINE_TARGET in all contexts. - (expand_inline_function): special handling for insn after a CALL_INSN - if it copies the function value out. - Allow notes and stack adjust insns to intervene - between the CALL_INSN and the value-copy. - - * expr.c (emit_call_1): New name for gen_call_1. - - * Bug: ({...}) insns were in wrong place for a subexpression - after a sequence point, as in x ? y : ({...}). - * tree.def: New tree-code RTL_EXPR holds a sequence. - * expr.c (expand_expr): Handle RTL_EXPR by emitting the sequence. - * stmt.c (expand_{start,end}_stmt_expr): Use emit_to_sequence - to make a sequence from everything within the ({...}). - (expand_{start,end,emit}_delayed_expr): Delete these functions. - * parse.y (`for'-statements): Don't call them; nothing special needed. - - * parse.y (yylex): Handle syntax L"..." and L'...' - (combine_strings): Handle wide strings being combined. - * typecheck.c (digest_init): Reject wide string as init for char array. - Allow it for an int array, but don't allow a narrow string. - * decl.c (init_decl_processing): New var int_array_type_node. - - * parse.y: Define keyword `noalias'. - * parse.h: Define RID_NOALIAS. - - * typecheck.c (compparms): Not all parmlists match an empty one; - call `compparms1' to filter them. - - * decl.c (groktypename): Remove special case for `void' as parameter. - (get_parm_types): Special case for list of one decl with type void. - - * decl.c (build_enumerator): Give enum constants the type `int'. - Variable `current_enum_type' eliminated. - (finish_enum): No need to repeat `fixup_unsigned_type' - since the precision has not changed. - * stor-layout.c (layout_type): Allow enum types to be unsigned. - - * emit-rtl.c (unshare_all_rtl): Unshare contents of all reg-notes. - - * parse.y (check_newline): filename is optional in #-lines. - -Mon Apr 4 14:36:54 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * typecheck.c (shorten_compare): When data type determines the value, - eval the nonconstant arg anyway if it has side effects. - (build_conditional_expr): When merging `foo *' with `void *', - also allow `const void *'. Result type has merged set of qualifiers. - (qualify_type): Merge qualifiers of two types. - - * decl.c (get_parm_types): Store any tags defined in parmlist - into `last_function_parm_types'. - (store_parm_decls): Add those tags into the current binding level. - - * parse.y (parmlist, parmlist_or_identifier): Pass 0 to pushlevel; - no binding levels in C should be transparent to tags. - - * 3b1 support: - * tm-3b1.h: New file. - - * m68k.md: Add HPUX_ASM conditionals for shift-by-24-and-compare. - In one of the dbra patterns, a HPUX_ASM conditional was backwards. - (movhi) [SGS_3B1]: Define the LI... label as in MIT syntax. - (addsi3) [SGS]: Syntax for base-displacement differs from MOTOROLA. - (subsi3) [SGS]: likewise. - (tablejump) [ASM_OUTPUT_CASE_LABEL]: Use 6, not 2, as displacement. - This assumes ASM_OUTPUT_CASE_LABEL on 68k is used for a `swbeg'. - - * final.c (final): Use ASM_OUTPUT_CASE_LABEL (if defined) to output - any CODE_LABEL followed by an ADDR_VEC or ADDR_DIFF_VEC. - It has 4 args; 4th is the insn which is the ADDR_VEC or ADDR_DIFF_VEC. - - * tm-*.h for 68000 (PRINT_OPERAND_ADDRESS): For unscaled indexing in - fetch from a branch table, use L and LI symbols as in the scaled case. - - * cccp.c: If SCCS_DIRECTIVE, define #sccs as no-op. - - * integrate.c (output_inline_function): Real start of function - is FIRST_PARM_INSN, not FIRST_FUNCTION_INSN. - - * tree.c (build_string): String contents must be saveable (for - inline fcn). - - * cse.c (cse_insn): Don't forget to set dest_hash_code when dest - is a stack slot (and so its address is not being optimized). - - * emit-rtl.c (restore_reg_data_1): reg_rtx_no must be 1+ largest REGNO. - - * m68k.md (non-SImode bit-field insns): Change constraint to "o,d" - so a nonoffsetable memref is handled by reloading its address - but a register can still be handled. - - * toplev.c (main): Execute OVERRIDE_OPTIONS, if it's defined. - -Sat Apr 2 00:55:21 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * expr.c (convert_move): Handle a SUBREG in direct truncation case. - - * cse.c (lookup_for_remove): Don't test machine mode of registers: - Storing in (REG:SI 0) invalidates (REG:DF 0). - - * decl.c (pushlevel): New arg, nonzero means this level is for - variables only, not for tags. All calls changed. - (lookup_tag): Even if THIS_LEVEL_ONLY, skip variables-only levels. - (pushtag): Define it in the first non-variables-only level. - - * dbxout.c (dbxout_type): Undo Mar 29 change, in the DBX_NO_XREFS case. - So now each struct or union will contain only nameless cross-refs - to any others it uses. The prior change is still in effect when - DBX_NO_XREFS is not defined. - - * Implement variable array bounds for parameters. - * decl.c (poplevel): Don't crash if DECL_NAME gives 0. - * typecheck.c (comptypes): A variable array bound matches anything. - * parse.y (parmlist): Call pushlevel, then pushdecl each parm as it - is parsed; then poplevel after using get_parm_types to extract the - results of the parmlist. - * decl.c (get_parm_types): New function; reverse the current decls, - put them in last_function_parms, and return a list of their types. - (grokparms): Arg is now an idlist or a typelist. Do nothing if latter. - (push_parm_decl): New function, like {start,finish}_decl combined - for a parm in a parmlist. - - * dbxout.c (dbxout_symbol): Ignore sym if its DECL_RTL is 0. - - * symout.c (symout_block_symbols): Ignore sym if type is error_mark. - -Fri Apr 1 11:41:21 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * expr.c (prepare_call_address): New function; given two rtx's - for function and context, copy the context to the right hard reg, - put the function address in the right place and return an rtx for it. - (gen_call_1): No longer do those things. Delete args CONTEXT, PROTECT. - (emit_library_call, expand_call): Call `prepare_call_address'. - In between that and `gen_call_1', USE the parm registers. - - * tm-hp9k320.h (ASM_OUTPUT_*): Flush uses of output_arith_constant. - - * varasm.c (assemble_variable): Use ASM_FORMAT_PRIVATE_NAME - to make the name for a local static variable. - * tm-m68k.h, tm-vax.h, tm-ns32k.h, tm-spur.h: - Define ASM_FORMAT_PRIVATE_NAME. Use `.', not `$', to separate. - - * tm-m68k.h, tm-ns32k.h (FIX_FRAME_POINTER_ADDRESS): - To refer to stack ptr, use stack_pointer_rtx, not a copy. - - * tree.c (build_real_from_string): Function deleted. - * parse.y (yylex): Use build_real and atof. - - * parse.y: Allow string concatenation in arg of asm. - - * parse.y (yylex): Always allow `$' in ident, but warn if pedantic. - * tm-vms.h: Delete DOLLARS_IN_IDENTIFIERS (no longer tested). - - * cccp.c (rescan, do_define, initialize_random_junk): - Always allow `$', but warn if pedantic. - (main): If -t, set `traditional'. - (collect_expansion): If `traditional', no special handling for quotes - and no whitespace added at end of macro definition. - - * expr.c (compare, compare1): Last arg to compare_constants - must be a size in bits. - -Thu Mar 31 00:31:52 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * expmed.c (expand_mult, expand_divmod, extract_fixed_bit_field): - Reject function return register as target if may need to read it. - (Reading the return register in an inline function doesn't work.) - - * decl.c (start_function): Delete extra arg to `error'. - - * emit-rtl.c (last_parm_insn): Delete this unused var. - - * make-cc1.com: New version from Kashtan. - - * integrate.c (expand_inline_function): Always set up an INLINE_TARGET - for a function that returns a nonvoid nonBLK value. - Since `pushlevel' and `poplevel' are called, must also call - `expand_{start,end}_bindings' to make a pair of NOTEs. - Let them handle USEs at end of scope of formal parameter copies. - - * integrate.c (expand_inline_function): In a new-style CALL_INSN, - don't change the result reg into INLINE_TARGET. Also, - generate a move insn after the call only if INLINE_TARGET is non-0. - - * integrate.c (copy_decl_tree): Don't crash if DECL_RTL is 0. - - * integrate.c (copy_for_inline): Don't treat `return' rtx's specially. - - * stmt.c (expand_{start,end,emit}_delayed_expr): - New fns to handle ({...})'s in expressions output not where parsed - (such as third expression in a `for' statement). - * parse.y: Call them to handle third expression in a `for'. - - * decl.c (duplicate_decls): Result is `inline' if either OLD or NEW is. - - * emit-rtl.c (emit_note): Return the note, or 0 if none. - * stmt.c (expand_start_bindings): Use emit_note's value. - -Wed Mar 30 12:48:22 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * obstack.c (_obstack_begin): If ALIGNMENT is 0, use default. - Compute default for the alignment of a `double'. - * obstack.h (obstack_{begin,init}): Pass 0 for the alignment. - - * flow.c (mark_used_regs): Discard multiple SUBREGs, STRICT_LOW_PARTs. - - ** Call insns that return values are now represented as - (set (reg ...) (call ...)), not just (call ...). - - * *.md: Define a "call_value" insn pattern. - - * tm-m68k.h, tm-vax.h, tm-ns32k.h: (NOTICE_UPDATE_CC): - These insns invalidate the CC. - - * local-alloc.c (combine_regs): #if 0 special treatment of - function value hard reg. - (wipe_dead_reg): If hard reg, call reg_is_born so that the death - will not be ignored. - (reg_is_set): For reg that dies in this insn, mark it dead from now on - and post_mark it live after this insn only. - - * combine.c (try_combine): Don't allow a call insn as I1 or I2. - - * loop.c (count_loop_regs_set): Move CALL_INSN into a separate - clause. When finding regs that are function addresses, handle - both old and new format call insns. - - * flow.c (insn_dead_p): A SET that contains a CALL can't be dead. - (volatile_refs_p): Any CALL constitutes a volatile ref. - (mark_used_regs): If setting a reg from a volatile ref, - treat it like setting a reg whose value will be used. - - * expr.c (gen_call_1): New arg VALREG if nonzero means generate - a call_value insn which stores in VALREG. - (expand_call): Use `hard_function_value' to make the VALREG arg - unless expression has type `void'. - - * expr.c (emit_library_call): New 2nd arg OUTMODE is mode of result. - (So can give gen_call_1 the proper value-register.) - All callers (here and optabs.c) pass this arg. - - * cse.c (canon_hash): Consider all CALL rtx's volatile. - - ** end of change in representation of call insns. - - * stmt.c (expand_asm_operands): Replace complex lvalues with - SAVE_EXPRs here - * typecheck.c (c_expand_asm_operands): rather than here. - - * typecheck.c (pointer_diff): Fix typo preventing use of FLOOR_DIV_EXPR - when dividing by power of 2. - (build_c_cast): Flush unused locals. - (store_init_value): likewise. - (process_init_constructor): Delete unused 4th arg `for_static'. - - * toplev.c (fatal_io_error): Arg to fprintf was missing. - - * tm-m68k.h (LEGITIMIZE_ADDRESS): Flush extra arg to `emit_move_insn'. - - * decl.c: Delete some unused local vars. - - * stor-layout.c (layout_decl): `packed_size' now unsigned. - -Tue Mar 29 14:47:07 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * Version 1.19 released. - - * loop.c (may_trap_p): Nonzero if X is a division that might trap. - (scan_loop): If insn might trap, move only if loop always executes it. - - * dbxout.c (dbxout_type): Never output a cross-ref for - a type whose definition is known. Sun dbx won't accept them. - -Mon Mar 28 12:34:46 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * tm-vms.h (TARGET_DEFAULT): Default is PCC alignment. - The VMS compile driver controls the real default. - - * typecheck.c (c_expand_return): Don't ignore return value - when its type is void. - - * final.c (final): Forget the condition codes after an `asm'. - - * typecheck.c (build_binary_op_nodefault): Warn about ptr < 0 - even if not pedantic, but not if traditional. - - * typecheck.c (convert_for_assignment): Don't warn about - pointers volatile * vs nonvolatile * if -fvolatile specified. - - * decl.c (store_parm_decls): Among the old-style parm decls - there can legitiately be other decls! For example, if a parm - is declared `enum {foo, bar} x;', there are decls for `foo' and `bar'. - Don't let anything but a PARM_DECL match a parm name; - pass all the other decls through into the lexical context. - - * jump.c (jump_optimize): When deleting stack adjusts before a - jump-to-return, don't be fooled by intervening NOTEs. - - * tm-sequent.h (PRINT_OPERAND): Output (MEM (MEM (REG))) properly. - * output-ns32k.c (print_operand_address): Output (MEM (REG)) - properly; output stack-pointer as `tos'. - - * flow.c (find_use_as_address): Reject uses within operand 0 - of a ZERO_EXTRACT or SIGN_EXTRACT reference. It's hard to reload - an autoincrement inside these because they can refer to multiple bytes. - - * reload.c (find_reloads): `o' in constraint means any memref - (except auto-increment) is acceptable with reloading. - Braino: Clear BADOP, not BAD. - - * reload.c (push_reloads): Use rtx_equal_p (via macro MATCHES) - when considering reuse of an old reload. Otherwise equal values - may get reloaded into different registers, and two MEMs that - originally matched may fail to match once reloaded. - - * m68k.md (sign_extract and zero_extract insns): - If operand 0 is QI or HImode, don't allow register--only `o' - (except in some bftst patterns where bitpos is < 8). - And change `m' to `o' in all these patterns. - -Sun Mar 27 15:32:54 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * expr.c (expand_expr, case CONSTRUCTOR): - Not all aggregates are BLKmode; use the type's mode. - - * gcc.c: Pass -y* to ld. - - * cse.c (struct hash): New member `equivalence_only'. - (insert): Initialize it. - (cse_insn): Set it to 1 when src_eqv is inserted. - When finding cheapest equivalent of something, - skip elts that are marked with `equivalence_only'. - - * decl.c (duplicate_decls): Don't call `layout_type' - if the type is `error_mark_node'. - - * decl.c (implicitly_declare): If decl will be file-scope, - make sure it's a permanent node, and its associated data too. - -Sat Mar 26 15:48:50 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * flow.c (insn_dead_p, mark_used_regs): Storing a reg via a - ZERO_EXTRACT or SIGN_EXTRACT is dead if the reg isn't needed afterward. - - * stmt.c (expand_start_function): Set current_function_name - to the name of this function. - * tm-vms.h (MAYBE_VMS_FUNCTION_PROLOGUE): Use current_function_name. - - * expr.c (expand_increment): A SUBREG in op0 can also a be a copy. - - * ns32k.md: Correct range of args for `adjspb' insn. - Use `adjspw' when appropriate. - New pattern for `lprd' insn. - Change some `const_int' predicates to GET_CODE tests. - - * expr.c (expand_call): Eval function before copying args to hard regs. - - * tree.c (make_node, copy_node): Don't get length of a REAL_CST - from tree_code_length. - - * expmed.c (extract_fixed_bit_field): In memory-word case, abort - if tm.h parms say word could fail to be well-aligned. - * tm-ns32k.h: Define STRUCTURE_SIZE_BOUNDARY so they will be aligned. - * tm-vax.h: Define STRUCTURE_SIZE_BOUNDARY since Unix CC seems to. - - * tm-vms.h (CPP_PREDEFINES): Predefine __GNU__ and __GNUC__. - -Fri Mar 25 13:23:27 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * gcc.c (main): Handle SIGHUP, SIGTERM. - - * expmed.c (expand_bit_and): Don't clobber OP1 when trying andcb. - -Thu Mar 24 21:59:09 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * stmt.c (assign_parms): Get size of BLKmode local from the type, - not the mode. - (expand_function_start): Init frame_offset before calling assign_parms. - -Wed Mar 23 23:50:37 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * expr.c (emit_push_insn): When making a move insn, - go via emit_move_insn; else fails to put constants into memory. - -Tue Mar 22 15:45:10 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * expr.c (expand_increment): Flush special case for register_operand; - actually call the predicate whatever it is. - - * genemit.c (gen_expand): Make `operands' a local variable, - not a global static one, in the `gen_...' function. - Avoids lossage when one `gen_...' fcn calls another indirectly. - - * genoutput.c (output_epilogue): Don't give printf a null string. - -Mon Mar 21 15:41:42 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * expmed.c (store_bit_field) [HAVE_insv]: - Force VALUE1, not VALUE, into a register. - - * expmed.c (store_fixed_bit_field): Width of mask for clearing - the bit-field depends on mode of OP0. - - * ns32k.md (branch and store-flag insns): - Test cc_prev_status, not cc_status. - - * expmed.c (extract_bit_field): Delete unused var `omode'. - - * dbxout.c (dbxout_type, dbxout_tag): Use the main variant - of the specified type. - - * reload.c (find_reloads): When an alternative succeeds without reload, - initialize goal_alternative_matches from this_alternative_matches. - -Sun Mar 20 17:58:00 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * tm-sun*.h: Don't predefine `m68k'; Sun's compiler does not. - -Fri Mar 18 13:48:29 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * reload.c (find_reloads): Set up goal_alternative_matches - *after* the label `finish'. - - * stmt.c (assign_parms): GET_MODE_SIZE needs a mode, not an rtx. - - * recog.c (constrain_operands): Set global var `which_alternative' - to indicate which of the alternatives this insn matches. - - * typecheck.c (commontype): long int vs unsigned int - gives long unsigned, if long and int are the same width. - -Thu Mar 17 15:39:45 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * emit-rtl.c, tree.c: include local version of varargs.h. - - * decl.c (start_function): Clear TREE_EXTERNAL and set TREE_STATIC - here rather than in finish_function. Affects the case of - `extern foo (); static foo (a) {...}' - - * gcc.c: Handle -fnostdinc and -fnostdlib switches in specs. - - * cccp.c (main): Handle -fnostdinc: don't put default dirs - on the chain to be searched. - - * cccp.c (error, warning, error_with_line): No longer print - charpos within file; lineno is enough. - -Wed Mar 16 16:56:36 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * expmed.c (expand_inc, expand_dec): Handy new subroutines - to generate x+=y or x-=y, given x and y as rtl. - * expmed.c (expand_divmod): Use them instead of gen_{add2,sub2}_insn. - - * expr.c (emit_move_insn): Return the move insn emitted. - Eliminate the code here to move a DImode or DFmode by pieces. - - * emit-rtl.c (emit_insn): Return-value was wrong if emit_to_sequence; - cannot use `last_insn' in that case. - - * regclass.c, stupid.c, local-alloc.c, global-alloc.c: - Some vars of type HARD_REG_SET should be `register' only - if HARD_REG_SET is a macro (ie a scalar). - - * expr.c (move_block_from_reg): New function, converse of - move_block_from_reg. - * stmt.c (assign_parms): If a BLKmode arrives in regs, - copy to a stack slot using move_block_from_reg. - -Tue Mar 15 17:33:22 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * regclass.c (regclass): Don't convert to two-operand insns - unless optimizing. - - * varasm.c (decode_rtx_const, const_hash_rtx): Fix typos. - - * stmt.c (fixup_var_1): Don't alter insn moving VAR to or from - a subreg of a register. - - * cse.c (fold_rtx): Don't fold if result is not LEGITIMATE_CONSTANT_P. - Construct all results in new local variable NEW; then test that - and decide whether to return it or the original rtx. - - * cse.c (cse_insn): When SRC_EQV is non-0 but set[0] has been - cleared, don't insert SRC_EQV in hash table. - - * All insns emitted by a define_expand become part of the SEQUENCE: - * SEQUENCE now contains a vector of insns, not of bodies. - * insn-emit.c (add_insn): If `emit_to_sequence' nonzero, add the - insn to a separate chain, `sequence_first_insn'. - (gen_sequence): Take everything on that chain and make a SEQUENCE. - (emit_insn): Handle SEQUENCE differently since elts are now insns. - (emit_insn_{before,after}): Handle SEQUENCE. - (classify_insn): #if 0. - * genemit.c (gen_expand): emit all the insns, then call gen_sequence - to make the return value. - Define two macros DONE and FAIL for use in a DEFINE_EXPAND: - Use DONE to inhibit emission of the pattern of the DEFINE_EXPAND. - Use FAIL to make the gen_... function return 0. - -Mon Mar 14 12:47:28 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * expr.c (expand_expr): Extend the don't-sign-extend-enums hack - to COMPONENT_REF. (See 3 March.) - - * tm-*.h (FUNCTION_ARG, etc.) New argument NAMED - is nonzero for a named arg, zero for an anonymous extra arg. - * expr.c (expand_call): Pass 1 for NAMED if appropriate. - * expr.c (emit_library_call): Pass 1 for NAMED. - * stmt.c (assign_parms): Pass 1 for NAMED. - - * cccp.c: Test __GNUC__, not __GNU__. - - * integrate.c (copy_and_substitute_rtx): - Replacing a MEM parm with the parm value, convert mode if mismatch. - Always use VOIDmode when generating SETs. - Take heed of FIRST_PARM_OFFSET and distinguish arg-pointer - from frame-pointer when they are different. - (expand_inline_function): Handle (RETURN) insns, by creating a - return_label which is output after the integrated code. - - * parse.y (yylex): Condition for ignoring `inline' was backwards. - - * flow.c (mark_used_regs): Ignore STRICT_LOW_PART, so that - an insn that sets STRICT_LOW_PART (and its source values) may be dead. - (propagate_block): Always pass 1 for strict_low_ok to insn_dead_p. - - * optabs.c (emit_unop_insn): Don't make a REG_RETVAL note. - Change above deletes dead STRICT_LOW_PART stores without one. - - * optabs.c (expand_binop, expand_unop): If the library address - is to be put in a pseudoreg, do it here, and make the REG_RETVAL - note point after that. - - * expr.c (emit_library_call): Never defer stack-pops. - Deletion of the library call by flow.c loses if they are deferred. - - * cse.c (cse_insn): Handling of 68k's zero-extend was broken: - it made the actual source and the REG_EQUAL source equivalent. - * If dest is a STRICT_LOW_PART, ignore the actual source and use - the REG_EQUAL source in its place. src_eqv's mode may be different - from src's, so use proper mode in lookups or inserts for src_eqv. - * Don't forget to set src_eqv_elt if src_eqv already has an elt. - * On use_related_value for src_eqv, use src_eqv_elt. - - * toplev.c (main_input_filename): Name of file mentioned in first - #-line in the input. - (compile_file): Pass it to dbxout_init as 2nd arg. - * dbxout.c (dbxout_init): Use 2nd arg to make the N_SO symbol. - * parse.y (check_newline): Store main_input_filename. - - * expr.c (move_block_to_reg): New function, copies a MEM:BLK - to consecutive registers. - (use_regs): New function to emit a USE for each reg in a series. - (expand_call): Use the two new functions when a precomputed BLKmode - arg is passed entirely in regs. - (emit_push_insn): Use move_block_to_reg when PARTIAL > 0. - Also, don't subtract USED from SIZE twice. - Use plus_constant to add ARGS_SO_FAR so can use indexing on stack ptr. - - * varasm.c (assemble_integer_zero): Use rtx 0, not tree 0, - to go with prev change in ASM_OUTPUT_INT. - -Sun Mar 13 01:16:17 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * varasm.c (const_hash, compare_constant_1, record_constant_1): - Handle NOP_EXPR and CONVERT_EXPR in constant expressions. - - * optabs.c (expand_binop, expand_unop): When widening operands, - those with VOIDmode (like CONST_INT) may be left alone. - -Sat Mar 12 01:09:24 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * varasm.c (assemble_variable): When making a .comm or .lcomm, - round size up to multiple of BIGGEST_ALIGNMENT. - - * obstack.c (_obstack_newchunk): Eliminate fencepost causing copying - to access the word past the end of the existing object. - - * tm-vax.h, tm-ns32k.h: Define {INIT_,}CUMULATIVE_ARGS - and upgrade FUNCTION_ARGS for new calling convention. - - * gcc.c: If -O, define __OPTIMIZE__. - (do_spec_1): %c now scans SIGNED_CHAR_SPEC: define __CHAR_UNSIGNED__ - when appropriate whether or not it is the default. - -Fri Mar 11 16:49:25 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * parse.y: Define YYDEBUG. - - * rtl.c (rtx_unstable_p): New function, same as old rtx_varies_p. - * explow.c (stabilize): Use rtx_unstable_p. - * rtl.c (rtx_varies_p): Ignore `unchanging' (undoing previous change - in this function) because `unchanging' doesn't enable cse to compare - the value with any particular constant value. - * rtl.c (insn_store_addr_varies_p): Delete, since not used. - - * hard-reg-set.h (COPY_HARD_REG_SET, etc.) non-scalar case: - Rename and rearrange temp variables to avoid name conflicts with args. - - * regclass.c (reg_class_record): Don't smash class to GENERAL_REGS - and don't exit prematurely, when `r' or `g' is seen. Must merge - GENERAL_REGS with previously determined desired class. - - * expr.c (expand_call) [no PUSH_ROUNDING]: When pushing the arg - block, try to reuse some of the pending_stack_adjust. - - * cse.c: qty_const can now hold values (PLUS frame_pointer integer). - Effect is that storing into a structure doesn't invalidate - mem refs to scalar stack variables via addresses in registers. - (insert): Load such values into qty_const, like true constants. - (fold_rtx): Ignore qty_const if it isn't really a constant. - - * expr.c (expand_expr) VAR_DECL: Copy DECL_RTL before calling - change_address, so it isn't permanently clobbered. - - * stmt.c (fixup_var_refs_1): Make sure the stack slot address - is valid by calling fixup_stack_1 each time it is substituted. - - * stmt.c (fixup_stack_1): Return the altered rtx. - If it's a MEM in the stack, return a copy of it. - - * stmt.c (fixup_stack_slots): #if 0. - * stmt.c (expand_finish_function): Don't call fixup_stack_slots - because fixup_stack_1 is called elsewhere when necessary. - - * reload.c (find_reloads_address): New arg is location of the MEM - whose address is being reloaded. So we copy the MEM if it - is one that can be shared. New arg 0 means no need to copy the MEM. - All callers pass the new arg. - - * stmt.c (assign_parms): Determine parm stack-size from - the DECL_ARG_TYPE, not from the TREE_TYPE. - Else loses when parm is declared `float' but passed as `double'. - - * emit-rtl.c (make_safe_from): Constants are already safe. - Use proper machine mode for temp reg when needed. - -Thu Mar 10 14:35:14 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * expr.c (emit_push_insn): Don't pass wrong type to plus_constant - (case where there is no PUSH_ROUNDING). - - * expr.c (expand_call): Round partial[i] down to multiple of - PARM_BOUNDARY before subtracting it from arg size on stack. - Compute these sizes just once and keep them in vector `arg_size'. - * expr.c (emit_push_insn): Handle `partial' uniformly, in accord - with this new convention for how it affects the stack size. - * stmt.c (assign_parms): Round NREGS down to PARM_BOUNDARY likewise. - - * obstack.h (obstack_free macro) [Not __GNUC__ but __STDC__]: - Don't cast result of (obstack_free) to (int); just ignore it. - - * reload.c (find_reloads): Initialize operand_reloadnum. - - * optabs.c (emit_unop_insn): New argument CODE, used to make - a REG_EQUAL note from operand OP0 if more than one insn results. - Also a REG_RETVAL note. - * expr.c (convert_move): Pass CODE arg to emit_unop_insn. - * flow.c (propagate_block): Use insn_dead_p to decide whether - to handle a REG_RETVAL note by skipping some insns. - Always pass 1 for STRICT_LOW_OK for an insn that has a REG_RETVAL note. - Handle case where REG_RETVAL points at an insn that's deleted. - * flow.c (insn_dead_p): New operand STRICT_LOW_OK says an insn - that sets STRICT_LOW_PART may be considered dead. - - * expr.c (expand_expr): Once again canonicalize X-C to X+(-C). - Change on March 1 made it stop doing this. - -Wed Mar 9 01:25:35 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * loop.c (move_movables): Don't always mark the moved reg - as equivalent to a constant value: not if it is being cleared - to zero-extend something or if it is used outside the loop. - - * expr.c (move_by_pieces_1): Finish last change. - - * stmt.c (assign_parms): Update stack_args_size properly. - Figure FIRST_PARM_OFFSET when making the stack mem refs. - - * cse.c (insert): Build the related_value lists in the opposite order - so that the oldest element in the chain is the one that follows - the most basic element. - - * expr.c (expand_expr): COMPONENT_REF case: criterion for - converting the the result is if MODE1 (its mode of arrival) isn't - a mode we want. - - * toplev.c (rest_of_compilation): Fix typo setting TREE_ASM_WRITTEN. - -Tue Mar 8 13:18:37 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * cse'ing of library calls. - - * expr.h: type `optab' is now a ptr to a struct. - The old contents are now the `handlers' element. - The `code' element gives the RTL code for the kind of expression - this optab makes (PLUS for add_optab, etc.) - Every var formerly declared `struct optab *' is now just `optab'. - - * optabs.c (init_optab, init_optabs): New function to init an optab - and set its `code'. Used in init_optabs. - - * optabs.c (expand_binop, expand_unop): Use the `code' field - to add a REG_EQUAL note to the insn that copies a libcall's - value into a pseudo. Also a REG_RETVAL note pointing at the - first insn for setting up args for the call. - - * cse.c (cse_insn): Process REG_EQUIV and REG_EQUAL datum almost like - another set-src; put the actual src into the equivalence class of that. - - * flow.c (propagate_block): If a dead insn has a REG_RETVAL reg-note, - either ignore or delete all the insns back to the insn the REG_ARG - note points to. - - * local-alloc.c (block_alloc): Don't refrain from allocating a - "constant" register if the constant value isn't ok for an immediate op. - - - * dbxout.c (CONTIN): If DBX_CONTIN_LENGTH is <= 0, do nothing. - - * cccp.c: Extra default include dirs for C++. - * cccp.c (main): For -M, strip dirs from object file name. - - * rtl.c (find_reg_note): New function. - - * expmed.c (store_fixed_bit_field): Don't AND with VALUE - if VALUE's original mode had no more bits than we want. - - * expr.c (emit_library_call): Use varargs. - - * integrate.c (copy_and_substitute_rtx): Recognize arg_pointer_rtx - and translate it just like frame_pointer_rtx. - -Mon Mar 7 00:48:33 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * expmed.c (extract_fixed_bit_field): - Shift counts were wrong for narrow MODE in signed case. - Do the sign-extending shifts in the narrowest mode possible. - Reduce big-endian case to little-endian case. - Delete SLOW_ZERO_EXTEND conditional. - - * Implement constants in memory for RISC machines - with limited abilities for immediate args and constant addresses. - - * genoutput.c (output_epilogue): Empty predicate-name - is output as 0 in insn_operand_predicate. - - * expr.c (expand_expr): Change 4th arg to an `enum expand_modifier' - Value EXPAND_SUM corresponds to old nonzero 4th arg. - Value EXPAND_CONST_ADDRESS means ok to return an invalid MEM - whose address is a constant. Changes for this case in ADDR_EXPR, - COMPONENT_REF and ..._DECL. - - * varasm.c (output_arith_constant): Function deleted. - * tm-*.h: (ASM_OUTPUT_{INT,SHORT,CHAR}): 2nd arg is now an RTX - and output it using `output_addr_const'. - * varasm.c (output_constant): Change uses of those macros. - - * varasm.c (init_const_rtx_hash_table): Initialize constant pool - for a new function. Called from `expand_function_start'. - * varasm.c (force_const_mem): Turn a constant rtx into a MEM rtx - which refers to the constant pool. Other new subroutines too. - (force_const_double_mem): Use force_const_mem to make the MEM. - (immed_real_const): No longer record the REAL_CST node in the rtx. - - * explow.c (force_reg): If arg is a constant and not legitimate, - put it in the constant pool with force_const_mem. - Mark the register as equivalent to the constant value. - * expr.c (emit_move_insn): Likewise. - * explow.c (break_out_mem_refs): Use force_reg to put into a reg. - * explow.c (memory_address): Likewise. - * expr.c (expand_expr): ADDR_EXPR case: likewise. - - * expr.c (expand_call): Do force_reg on each register-operand - so it will go through a pseudo and can be cse'd. - - * recog.c (immediate_operand, nonmemory_operand, general_operand): - For constant operands, use LEGITIMATE_CONSTANT_P to decide value. - * tm-*.h: Define LEGITIMATE_CONSTANT_P. - - * reload1.c (reload): Invalid constants can't go in reg_equiv_constant. - -Sun Mar 6 22:49:06 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * reload.c (push_reloads): If IN occurs within OUT, - don't reuse an existing input-only reload. Otherwise would lose on - (set (mem (plus R C)) (plus R C1)) if R is available in a spill reg. - - * reload1.c (choose_reload_targets): Don't choose an inherited - reload register that's in use for another reload. - Without this, above change doesn't have an effect. - - * Implement the `unchanging' flag in MEM and REG rtx's. - Also simplify code with a new subroutine `change_address'. - - * emit-rtl.c (change_address): Return new memory ref like an old - one but with specified mode and address. - * expmed.c (extract{,_split,_fixed}_bit_field): Use change_address. - (store{,_split,_fixed}_bit_field): Likewise. - * expr.c (store_expr, expand_expr): Likewise. - - * expr.c (move_by_pieces): Args now memrefs, not addresses. - Eliminate the FROM_VOL and TO_VOL args since the memrefs indicate. - Change the structure `struct move_by_pieces' similarly. - (move_by_pieces_1): Same changes; use change_address. - (emit_block_move, emit_push_insn): Calls to move_by_pieces changed. - - * integrate.c (copy_rtx_and_substitute): Use change_address; - handle ->unchanging field. - - * rtl.c (rtx_varies_p): Regs or memrefs with ->unchanging don't vary. - (copy_rtx): Perserve ->unchanging. - (print_rtx): Print ->unchanging as /u. - - * stmt.c (expand_decl): Set ->unchanging on `const' decls. - (fixup_memory_subreg): Use change_address. - (assign_parms): Record in the rtl which parms are volatile or const. - - * varasm.c (assemble_variable): Set ->unchanging on `const' decls. - (output_constant_def): Always set ->unchanging for constant refs. - - * cse.c (canon_hash): Don't treat a MEM as "in memory" - if its ->unchanging bit is set. - - * loop.c (invariant_p): A REG or MEM with ->unchanging is invariant - (for a MEM, the address must be invariant). - -Sat Mar 5 13:22:11 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * genconfig.c (walk_insn_part): DO consider MATCH_DUPs - when calculating MAX_RECOG_OPERANDS. - (gen_expand): define_expand is now different from define_insn. - Compute max # SETs or CLOBBERs for any one sub-insn in a define_expand, - instead of summing them all. And don't count the MATCH_DUPs at all. - - * genemit.c (max_operand_1): Record largest opno in a MATCH_DUP - separately from largest in a MATCH_OPERAND. - (gen_expand): An operand # with only MATCH_DUPs gets - a local variable in the gen_ function we output. - - * integrate.c (save_for_inline): Delete vestige of NOTE_INSN_IS_DECL. - - * cse.c (invalidate): Handle subregs. - (cse_ins, invalidate_from_clobbers): Do call `invalidate' for subregs. - (insert_regs): When assigning one subreg from a like one, - make the two regs equivalent. - (cse_insn): Do call insert_regs when dest is a subreg. - - * expr.c (expand_call): Precompute all args going via hard regs - since even arithmetic could require a library call. - -Fri Mar 4 15:48:17 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * stor-layout.c (layout_parms): Function deleted. - * stmt.c (expand_function_start): Don't call it. - - * stmt.c (assign_parms): - stack_args_size counts size of args so far passed on stack. - Use PARM_BOUNDARY when counting it; derive stack offsets from it. - Set current_function_args_size from it. - - When an arg is split between regs and stack, make stack space - for the rest of it, and count it. - In a varargs function, push the last arg onto the stack. - When an arg is passed in regs alone, don't remember a stack slot - for it, and if it needs one, use assign_stack_local. - - Set DECL_OFFSET to the stack offset, or -1 if parm came in regs. - - * expr.c (expand_call): Anonymous args of a varargs function - are always passed on the stack. - - * varasm.c (force_const_double_mem): Copy the MEM rtx - if it may need to be smashed by reloading. - - * genemit.c (gen_expand): define_expand must have nonempty pattern - even though, due to `return' statements in the code-to-run, - that pattern may not be used to generate code. - -Thu Mar 3 17:08:43 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * expr.c (expand_expr): If supposed to sign-extend an enum - which is never negative, zero-extend instead (unless SLOW_ZERO_EXTEND). - (store_expr): Likewise. - - * reload.c (find_reloads): 'm' for CONST_DOUBLE: clear BADOP, not BAD. - After force_const_double_mem, do find_reloads_toplev on the MEM. - (find_reloads_address): Handle constant addresses (on machines - that don't allow them). - - * final.c (set_current_gdbfile): New fn, get the gdbfile structure - for specified filename. - (output_source_line): Use set_current_gdbfile for the file. - * varasm.c (assemble_variable): Call set_current_gdbfile - for the declaration's source file, so GDB won't ignore the file. - - * varasm.c (force_const_double_mem): Build a new REAL_CST node - and get its data type from the machine mode of the CONST_DOUBLE. - (immed_real_const): Don't save the REAL_CST tree node. - * typecheck.c (get_floating_type): Return float type for given mode. - - * integrate.c (expand_inline_function): Ignore the (USE (REG...)) - (for the return-register) at the end of the inline function. - After a CALL_INSN, imagine the (SET (REG ...) (REG ...)) for - the return-register if the return-register isn't explicitly used. - -Wed Mar 2 22:08:49 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * typecheck.c (build_array_ref): Do default_conversion on INDEX. - -Tue Mar 1 15:49:34 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * expr.c (expand_call): Always get a SYMBOL_REF for a fixed function. - If may be alloca, set may_call_alloca. - (gen_call_1): Never put a SYMBOL_REF through `memory_address'; - but if function cse is wanted, just copy it to a register. - If NO_FUNCTION_CSE is defined, never do function cse. - - * expr.c (init_expr): New function, does init_queue and inits - other things. - - * stmt.c (expand_function_start): Call init_expr, not init_queue. - - * optabs.c (expand_binop): Don't clobber OP0 and OP1 - if may call delete_insns_since later. - - * expr.c (emit_library_call): PUSH_ARGS_REVERSE test was backwards. - - * cse.c (cse_insn): Do canon_reg on the size and position operands - in a ZERO_EXTEND or SIGN_EXTEND that is a destination. - - * tm-*.h: Define SLOW_BYTE_ACCESS. - * expmed.c ({store,extract}_fixed_bit_field): - If SLOW_BYTE_ACCESS, get/set all bit fields from full words. - - * combine.c (subst): Simplify - (zero_extend:SI (subreg:QI (zero_extract ...))). - * combine.c (simplify_and_const_int): Simplify - (and (zero_extract ...) (const_int ...)). - - * local-alloc.c (qty_compare{,_1}): Test of qty_phys_sugg was reversed. - (combine_regs): If one pseudo gets two suggested hard regs - (one at birth and one at death), prefer the one from birth - unless we see at death that it's no good. - - * expr.c (expand_expr): Ignore sum_ok unless mode is Pmode. - Don't use force_operand unless sum_ok is set. - -Mon Feb 29 19:23:50 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * expr.c (emit_move_insn): When a CONST_DOUBLE needs moving - by pieces, force it into memory, unless it is dconst0_rtx, - in which case each piece is const0_rtx. - (emit_push_insn): Likewise. Also, write code for pushing a - non-BLK mode which has no "mov" insn defined, but only - in the case where there is no PUSH_ROUNDING. - - * expr.c (do_tablejump): Put constant term in address last. - - * toplev.c (xrealloc): On error, call fatal instead of abort. - - * optabs.c (emit_cmp_insn): If genning from tst_optab, - make the operand fit its predicate. - - * optabs.c (expand_float): Don't adjust stack between cmp and jump. - - * optabs.c (expand_binop): Recursive calls can return 0; handle - that event by deleting any preparatory insns. Also don't smash - TARGET when this happens. - - * reload.c (push_reload): If IN != *INLOC, set reload_nocombine. - (combine_reloads): Don't combine an input reload with reload_nocombine. - - * jump.c (jump_optimize): Don't delete stack adjusts unless - EXIT_IGNORE_STACK is nonzero. - * expr.c (clear_pending_stack_adjust): Likewise. - * tm-*.h: When EXIT_IGNORE_STACK is defined, give it `1' as defn. - - * expr.c (expand_call): Initialize args_size. - Don't push a block if args_size is 0. - (emit_library_call): Don't include register-args (or reg-parts - of partial ones) in args_size. - Don't push a block if args_size is 0. - - * expr.c (expand_expr): For DECLs in memory, check the address - validity with memory_address_p, and preserve volatility info. - - * stmt.c (expand_function_end): fixup_gotos needs 2 args. - - * jump.c (mark_jump_label): If INSN is 0, don't set its JUMP_LABEL. - Inside an ADDR_VEC or ADDR_DIFF_VEC, recurse with 0 for INSN. - - * varasm.c (force_const_double_mem): Must zero TREE_CST_RTL - before output, or nothing will happen. - -Sun Feb 28 01:08:53 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * optabs.c (emit_unop_insn): Generate and emit an insn - given the insn-code and the two operands (one out, one in). - Can move the operands into registers when needed for various - reasons. - * expr.c (convert_move): Use emit_unop_insn for outputting the - conversion insns. - - * expr.c (emit_library_call): Use arg's nominal mode to choose - a reg to pass it in, not actual mode (which can be VOIDmode). - - * insn-emit.c (emit_insn): If arg is empty SEQUENCE, do nothing. - - * genemit.c (gen_expand): Scan the rtl-pattern for predicates - and machine modes of the operands. - - * m68k.d (dbra patterns): Add HPUX_ASM conditionals. - - * rtl.c (reg_mentioned_p): Use "equal", not "eq", when - REG isn't a register. - * reload.c (combine_reloads): Verify not reg_mentioned_p even if - the input reload's value isn't a register. - - * reload.c (operands_match_p): If successful and 2nd arg - has a pre-increment that matches a non-increment, return 2. - - * reload1.c (reload): At end, clobber a pseudoreg to a MEM - even if it's an out-of-range address. It doesn't affect the - assembler code in this case, but it makes the dbx output correct. - - * recog.c (constrain_operands): When operands_match_p returns 2, - in the constraint alternative that is ultimately successful, - copy the output operand from the input that it matched - so that the assembler insn that is output shows the pre-increment. - -Sat Feb 27 15:16:47 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * combine.c (subst): When optimizing - (set (zero_extract ...) (and (zero_extract ...) const)) - must arrange to have 1's, not 0's, shifted into low bits of const. - - * decl.c (grokdeclarator): When return-type defaults to int, - don't warn, just set warn_about_return_type. - (start_function): See that variable and warn, after starting function. - - * toplev.c (count_error): No longer print newline if not quiet. - (report_error_function): If not quiet, print a newline if - printing anything, and don't print the function name. - - * reload1.c (choose_reload_targets): - Fix the loop that checks for consecutive available spill regs. - Set `have_groups' nonzero if any reload wants a group. - In that case, for non-group reloads, prefer a reg that can't be in - group, or else one that has only one available neighbor. - - * reload1.c (reload): Find separately the max need for each class - for single registers, groups of registers, and single registers - not in any group. (The last one counts non-group reloads - in insns that have at least one group reload.) - Then make sure enough of each kind are found. - - * expmed.c: Now needs flags.h and recog.h (therefore insn-config.h). - - * expmed.c (store_bit_field): - Delete redundant protect_from_queue. - Force VALUE out of memory if -fforce-mem. - If insv's predicate for VALUE wants a register, put it there. - - * expmed.c (extract_bit_field): - Force TARGET out of memory if -fforce-mem. - If insv's predicate for TARGET wants a register, put it there. - -Fri Feb 26 00:12:48 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * reload1.c (eliminate_frame_pointer): Don't check for pushes - unless PUSH_ROUNDING is defined. - - * reload.c: Don't define REG_OK_FOR_{INDEX,BASE}_P - (since the tm file is supposed to do it). - - * expr.c (emit_push_insn, expand_call): - Don't use PUSH_ROUNDING if it's not defined. - - * expr.c (preexpand_calls): Do nothing for constants and decls. - - * expr.c (expand_call, emit_library_call): When PUSH_ROUNDING - is not defined, use ROUND_CALL_BLOCK_SIZE to round the size - of the block of arguments. - - * expr.c (expand_call): Don't count register-args in ARGS_SIZE. - - * rtl.h, emit-rtl.c: Create static_chain_incoming_rtx - and struct_value_incoming_rtx. - * stmt.c (expand_function_start): Use ..._incoming_rtx where needed. - - * expr.c (expand_call): Use new macros INIT_CUMULATIVE_ARGS, - CUMULATIVE_ARGS and FUNCTION_ARG_ADVANCE to update data - on args scanned so far. - (emit_library_call): Likewise. - * stmt.c (assign_parms): Likewise. - * tm-spur.h, tm-m68k.h: Define these macros. - - * rtl.h (NUM_MACHINE_MODES): NUM_MACHINE_MODE renamed. - * rtl.c, genrecog.c: Change places it is used. - - * cccp.c (output_line_command): line_cmd_buf should be chars, not ints. - -Thu Feb 25 13:33:29 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * genemit.c (gen_expand): Don't lose if pattern is empty-vector. - - * genconfig.c (gen_insn): Don't lose if pattern is empty-vector. - - * expr.c (expand_expr): For COMPONENT_REF, don't convert to tmode - unless the mode we get is unacceptable. - - * loop.c (scan_loop, move_movables): New field `partial' is 1 for - zero-extending clr insn; don't make the reg invariant when it's moved. - - * optabs.c (expand_unop, expand_binop, emit_cmp_insn): - mode-argument to predicates was missing. - - * optabs.c (expand_binop): If gen-function returns 0, this means - the insn wasn't available. - - * reload.c (find_reloads): Don't make optional reloads for operands - that match other operands. - - * reload.c (combine_reloads): Reject optional output reload. - - * reload.c (find_equiv_reg): Know that CALL_INSNs clobber memory. - - * typecheck.c (build_binary_op_nodefault): - If doing a short shift, leave the shift-count as a fullword. - -Tue Feb 23 14:43:46 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * combine.c (subst): Count, in n_occurrences, # times FROM is seen. - (try_combine): Refuse to combine x=*y++ into z = x*x. - - * loop.c (invariant_p): Frame pointer and arg pointer are invariant. - (move_movables): Don't forget to set ->done! - When moving the matching movables, don't forget to set n_times_set. - - * expmed.c (expand_shift): Reorder strategies for logical shift; - if widening, try all ashift strategies before extzv. - - * typecheck.c (build_binary_op_nodefault): - Always return error_mark if either operand is one. - - * recog.c (nonmemory_operand): New predicate. - - * optabs.c (expand_unop, expand_binop, emit_cmp_insn): - Don't treat `register_operand' as special. Apply the predicate - to the rtx; if the predicate fails, use a register instead. - -Mon Feb 22 22:37:32 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * expr.c (expand_calls): Preexpand all calls in arguments - that are passed in regs before copying any of them into the regs. - - * expr.c (emit_push_insn): Three more args. - EXTRA for extra space to leave. - ARGS_ADDR and ARGS_SO_FAR for using move-insns on machines - that lack true push insns. - - * expr.c (emit_library_call, expand_call): - Use the new arguments of `emit_push_insn'. - - * expr.c (PUSH_ARGS_REVERSED): defined if handle args last-to-firs. - -Sun Feb 21 12:17:59 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * toplev.c (rest_of_compilation): Set TREE_ASM_WRITTEN - when a function is really output as assembler code. - Don't do inlining of a function that is already made inline; - instead, output it as assembler code, because this must be - the second call for that function. - - * decl.c (finish_compilation): Delete it. - * toplev.c (compile_file): Output pending inline functions at the end - in the same way tentative-defined variables are output. - - * emit-rtl.c (restore_reg_data): New fn: given chain of insns, - restore emit-rtl's data on registers from the regs they use. - - * integrate.c (output_inline_function): Use restore_reg_data. - (fill_regno_reg_rtx_as_needed): Now restore_reg_data_1 in emit-rtl.c. - - * tree.c (build_decl): Function moved from decl.c. - No longer set attributes of function decls specially. - - * decl.c (implicitly_declare, builtin_function, grokdeclarator): - Don't expect build_decl to set attributes of FUNCTION_DECL. - - * tree.c (preserve_data): New fn, make all data now on - maybepermanent_obstack last permanently. - - * cse.c (cse_insn): Remove a STRICT_LOW_PART from the dest rtx - before putting it in the hash table. - - * symout.c (symout_block): Fix the args to `symout_block_symbols'. - -Sat Feb 20 00:07:52 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - Start of changes for inline functions. - Changes received from Tiemann, then slightly rearranged for simplicity. - - * integrate.c: New file (Tiemann's rtl2.c). - * integrate.c (function_cannot_integrate_p): - New fn, only checks whether current fn is safe and good to inline. - Returns an error message string if not. - - * expr.c (current_args_size): Var made static. - (store_expr): Fn no longer static. - (stack_pointer_rtx): Use this var for all refs to the stack pointer. - (struct_value_rtx, static_chain_rtx): Likewise - - * expr.c (expand_call): Detect calls to integrable functions - and integrate them. - **If fn is not named "alloca" then assume it is not `alloca'. ** - - * emit-rtl.c (max_label_num): New fn, returns number for next label. - (get_first_label_num): New fn, returns first label of current fn. - (init_emit): Save first label number of this fn. - - * emit-rtl.c (gen_inline_header_rtx): New fn, make an INLINE_HEADER. - - * emit-rtl.c (emit_declaration): New fn to emit new kind of NOTE. - - * emit-rtl.c (init_emit_once): New fn. - Move inits of unique rtl objects here, from init_emit. - - * decl.c (finish_compilation): New fn to compile separately - any nonglobal inline functions that need to be addressable. - - * decl.c (grokdeclarator): Handle `inline' kwd among the declspecs. - Set TREE_INLINE if it's safe. - - * decl.c (finish_function): If fn was inlined, don't clear - the DECL_ARGUMENTS or DECL_RESULT or DECL_INITIAL. - - * gen*.c: Provide rtl_obstack, not current_obstack. - - * rtl.c (rtl_obstack): Variable: ptr to obstack to use for making rtl. - * rtl.c (rtx_alloc, rtvec_alloc): Use that obstack. - * rtl.c (copy_rtx): Copy the `integrated' flag. - * rtl.c (print_rtx): Print that flag as `/i'. - - * rtl.def: New rtx code INLINE_HEADER. - - * rtl.h (struct rtx_def): Add `integrated' field. - * rtl.h: Define macros for fields in an inline_header rtx. - - * stmt.c (max_parm_reg_num, get_first_function_insn): - New fns, return info on parm regs and the insns that init them. - - * stmt.c (expand_decl): Simplify with new local `type'. - - * stmt.c (stack_pointer_rtx): Replace all refs to stack pointer - with this shared rtx. - * stmt.c (struct_value_rtx): Likewise. - - * stmt.c (expand_start_function): Call init_pending_stack_adjust - instead of clear_pending_stack_adjust. - If not using a return-label, set `return_label' to 0. - - * stmt.c (expand_null_return, expand_end_function): - Call clear_pending_stack_adjust unconditionally. - - * expr.c (clear_pending_stack_adjust): Move the conditionals here. - For now, this fn is a no-op, since it's not safe in an inline fn - and the stack adjusts are deleted by jump.c in if optimizing. - - * expr.c (init_pending_stack_adjust): New fn. - -Fri Feb 19 14:30:13 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * toplev.c (main): Decode -finline-functions, -fkeep-inline-functions. - - * toplev.c (rest_of_compilation): - At start, save the rtl if function should be inline. - For inline function, if we don't yet know whether it should be - compiled on its own, don't do so. - - * toplev.c (compile_file): Clear, and later print, `integration_time'. - Call `init_emit_rtl' when starting. - Call `finish_compilation' at the end. - - [Add an extra arg to the error and warning functions?] - - * tree.c ({push,pop,clear}_momentary): - Change momentary_stack from a char ** to a struct momentary_level *. - - * tree.c (build_pointer_type): Put temporary type in `saveable_obstack' - * tree.c (build_type_variant): Likewise. - * tree.c (make_node): Likewise. Also put decls and LET_STMTs there. - * tree.c (type_hash_canon): Free a temporary type in `saveable_obstack' - - * tree.c (perm_tree_cons): Like `tree_cons' but on perm. obstack. - - * tree.c (init_tree, {{end_,}temporary,permanent}_allocation): - Handle `maybepermanent_obstack' and `saveable_obstack' and - `rtl_obstack'. - - * tree.h (TREE_INLINE): New attribute macro. - * tree.h (DECL_SAVED_INSNS, DECL_FRAME_SIZE): - New components in a FUNCTION_DECL. - Delete the `unused` slot in a `struct tree_decl'. - - * typecheck.c (mark_addressable): Set TREE_ADDRESSABLE - even in FUNCTION_DECLs. - - * typecheck.c (build_function_call): - If function is a FUNCTION_DECL, avoid setting TREE_ADDRESSABLE - when taking its address. - - * parse.h: Define RID_INLINE. - * parse.y: Define keyword `inline'; set up ridpointers for it. - (yylex): Don't recognize `inline' of -fno-asm or -ftraditional. - - * flags.h: New vars flag_inline_functions - and flag_keep_inline_functions. - - End of changes for inline functions. - - * tree.c (convert): If EXPR's type is an error_mark, return error_mark. - - * Makefile (install): Don't strip the executables. - - * jump.c (delete_insn): Deleting a label's target - can delete either NEXT and PREV! So must search for a - following nondeleted insn to return. - - * typecheck.c (build_function_call): Typo in validating - data type of function. - - * genoutput.c (gen_expand): Must create a `struct data' even - for a define_expand, so we can output the proper insn_gen_function - and leave zeros in the other tables. - - * loop.c (scan_loop): Replace the code for handling zero-extends - with unconditional code that checks for a pair of insns. - - * m68k.md: Do zero-extend using define_expand to generate - a pair of insns, to set all to zero and then copy the low part. - -Thu Feb 18 15:54:00 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * emit-rtl.c (emit_insn): If arg is a SEQUENCE, emit several insns. - * emit-rtl.c (classify_insn): Given an RTX, return the rtx-code for - an insn containing it: CODE_LABEL, INSN, JUMP_INSN or CALL_INSN. - - * rtl.def: New RTX types DEFINE_EXPAND and SEQUENCE. - * gen*.c: Handle DEFINE_EXPAND. Only genemit.c does real work. - - * make.com, make-cc1.com, make-cccp.com: New, VMS command files. - - * tm-vms.h: New file, used as tm.h to generate VMS code. - - * tm-vax.h (FUNCTION_PROLOGUE): Turn off no bits in the mask; - let call_used_registers alone control this. - Call MAYBE_VMS_FUNCTION_PROLOGUE, and define that as no-op. - - * tm-vax.h (TARGET_VAXC_ALIGNMENT): New target-flag bit. - BIGGEST_ALIGNMENT, EMPTY_FIELD_BOUNDARY and POINTER_BOUNDARY use it. - - * varasm.c (assemble_function): Use ASM_DECLARE_FUNCTION_NAME - if it is defined. - - * varasm.c (assemble_variable): On an external, - use ASM_OUTPUT_EXTERNAL if defined. Default is do nothing, as before. - - * toplev.c: - Use FATAL_EXIT_CODE and SUCCESS_EXIT_CODE. - Don't include time.h and resource.h on VMS. - (main) Define __VERSION__ if not already defined. - Conditionalize setrlimit on RLIMIT_STACK. - Test __GNUC__, not __GNU__. - Don't do `ps v' on VMS. - (gettime): Conditional code for VMS. - - * gcc.c: Define __GNUC__ as well as __GNU__. - __GNU__ will be deleted in a future version. - - * symout.c (symout_finish) [VMS]: Don't refer to `getwd' on VMS. - * symout.c (symout_init) [VMS]: Fatal error; GDB syms not supported. - - * parse.y (yylex): Handle DOLLARS_IN_IDENTIFIERS. - - * genoutput.c (gen_insn): Workaround for VMS printf %s bug. - - * gen*.c: Include config.h. Whenever exiting, use - SUCCESS_EXIT_CODE or FATAL_EXIT_CODE. - - * config-*.h: Define SUCCESS_EXIT_CODE and FATAL_EXIT_CODE. - * config-vms.h: New file, mostly like config-vax.h. - -Wed Feb 17 13:35:34 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * cccp.c: VMS support from Kashtan. - Some #include files are conditional. - Use file_size_and_mode instead of fstat. - When reading file contents, the size we get from that - is just an upper bound; don't assume it must match. - Replacement definitions of read and write for VMS. - Different default include directories. - Conditionalize the setrlimit code on RLIMIT_STACK. - Use SUCCESS_EXIT_CODE when exiting if no errors; - both that and FATAL_EXIT_CODE are not #defined if already defined. - - Treat $ as an identifier-character if DOLLARS_IN_IDENTIFIERS. - Rename the `delete' function as `delete_macro' - to avoid VMS name conflict. - - * cexp.y: Treat $ as an identifier-character if DOLLARS_IN_IDENTIFIERS. - - * stmt.c (fixup_memory_offset): Do big-endian compensation - only within a word, not for DImode vs SImode. - - * stmt.c (fixup_var_refs): Don't fix up the insn to load the var - from its own stack slot; delete it instead. - - * tm-ns32k.h (MODES_TIEABLE_P): DImode is like DFmode. - - * tree.c (MAX_HASH_TABLE): 1009 (more prime) instead of 1008. - - * decl.c (duplicate_decls): If merged type is OLD's type, - keep OLD's DECL_SIZE and DECL_SIZE_UNIT. - - * gen*.c (xmalloc, xrealloc): Call `fatal' if memory is full. - - * reload1.c (choose_reload_targets): If a mode doesn't fit the - reload register, and the insn is an ASM_OPERANDS, ignore the reload. - Otherwise, final would crash. - - * expmed.c (expand_shift): Two new strategies for lshr on short/char: - widen and do ashr, or widen and do extzv. - - * vax.md (peepholes): Use dead_or_set_p to check for eliminable - intermediate result, rather than requiring a match with final result. - - * local-alloc.c (block_alloc): Testing frame_pointer_needed is - enough; no need to test FRAME_POINTER_REQUIRED, etc. - * global-alloc.c (find_reg): Likewise. - * reload1.c (reload): Likewise for flag_omit_frame_pointer - - * jump.c (delete_insn): If not `optimize', don't complain - about finding an already-deleted insn in the chain. - -Tue Feb 16 17:14:54 1988 Richard Stallman (rms at wheaties.ai.mit.edu) - - * final.c: Don't define N_SOL and N_SLINE if already defined. - - * final.c (output_source_line): - Typo calling ASM_OUTPUT_SOURCE_FILENAME. - - * flow.c (INSN_VOLATILE): fix a typo. - -Fri Feb 12 16:48:16 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * final.c (final): for `asm' without operands, output literally. - -Thu Feb 11 12:44:41 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * symout.c (symout_record_fields): Handle nameless fields. - * symout.c (symout_record_field_names): Likewise. - - * typecheck.c (require_complete_type): `void' is a complete type. - * typecheck.c (build_function_call): Don't complain if result is void. - - * tm-hp9k320.h: Change definition of ASM_SPEC to +X, not -X. - - * cccp.c (main): Expected object file name for foo.cc is foo.o. - -Wed Feb 10 16:04:58 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * reload1.c (reload): Initialize `regmask' to zero. - Class number is in I, not in CLASS, when setting its elements. - Don't let J+K be too large. - - * reload1.c (potential_reload_regs): Make it a `short' - since that can't be unsigned. - - * cccp.c (warning): New function, called like `error'. - * cccp.c (do_define): Make redefinition just a warning. - -Tue Feb 9 13:28:00 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * decl.c (grokdeclarator): Don't be fooled by ERROR_MARK as a declspec. - - * toplev.c (compile_file): Strip final .c or .co from .sym file name. - - * gcc.c: When running `as', specify the .sym file if -gg. - -Mon Feb 8 11:26:26 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * expmed.c (store_fixed_bit_field): Don't try gen_lowpart on VALUE - if it's a subreg since it might lose; use convert_to_mode instead. - - * tm-hp9k320.h: Define TARGET_MEM_FUNCTIONS. - * expr.c (emit_block_move, emit_push_insn, clear_storage): - If TARGET_MEM_FUNCTIONS, generate calls to memcpy and memset - instead of bcopy and bzero. - * optabs.c (emit_cmp_insn): Likewise for memcmp vs bcmp. - - * stmt.c (expand_goto): New temp var to avoid RT/PC compiler bug. - -Sun Feb 7 12:20:23 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * flow.c (mark_used_regs, mark_set_regs): - Handle hard regs in multiword modes: set the bits for each - distinct register-number that makes up the multiword mode. - Necessary because function arg registers can inevitably - live across basic blocks. - - * cse.c (canon_hash): Function arg and value registers no longer - considered volatile, because flow should now handle the code that - can result from cse'ing them. - - * cse.c (make_regs_eqv): Abort if OLD is invalid. - * cse.c (reg_invalidate): Abort if reg already invalid has eqvs. - -Sat Feb 6 16:25:32 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * gcc.c (main): Specific error msg if no input files. - -Fri Feb 5 17:56:00 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * stmt.c (expand_decl, put_var_into_stack, assign_parms): - Set in_struct on a MEM if the variable is an aggregate or union. - * varasm.c (assemble_variable): Set in_struct on aggregate vars. - -Thu Feb 4 11:52:30 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * m68k.md (movsf): Correct two fmove.x to fmove.s. - - * expmed.c (extract_fixed_bit_field): - Must always generate an `and' to mask the bitfield - unless its width is the same as the output machine mode. - - * version 1.18 released. - -Wed Feb 3 08:41:20 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * fold-const.c (fold): Convert EXPR's operands before returning them. - -Tue Feb 2 15:35:18 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * reload.c (find_reloads_address_1): - - * typecheck.c (default_conversion): Handle COMPOUND_EXPR arrays. - -Mon Feb 1 18:53:05 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * ns32k.md: operand 0 of all unsigned divide/modulus insns - is now register_operand. - - * stdarg.h: Make va_list be char *, not char *[1]. - Latest draft doesn't say it must be an array type. - -Sun Jan 31 11:14:07 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * flow.c (find_basic_blocks): Add temp var to avoid Sequent - compiler bug. - - * tm-ns32k.h (GO_IF_LEGITIMATE_ADDRESS): Don't allow pushes or pops - since there are special insn patterns for them. - Resubroutinize and add temp vars to make expressions smaller. - * ns32k.md: Add a few more special stack insns; now there are enough. - - * tm-sequent.h: Definitions of DBX_NO_XREFS and DBX_CONTIN_LENGTH. - - * reload1.c (choose_reload_targets): Handling of reload_strict_low - is needed for input reloads as well as output, since a strict_low_part - operand is normally a read-write operand. - - * reload1.c (reload): The mode a reload needs is the wider of - the input and output modes--just as it is in choose_reload_targets. - - * reload.c (find_dummy_reload): If IN and OUT have different widths - and one of them exceeds a word, don't find any dummy reload. - - * toplev.c (compile_file): Allocate enough space for .jump2 filename. - -Sat Jan 30 10:35:46 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * output-ns32k.c (print_operand_address): - Print addresses of the form C1+(N*REG+C2) which currently - are accepted as legitimate memory addresses. - - * tm-sequent.h: Simple bugs in PRINT_OPERAND, TARGET_DEFAULT - and SEQUENT_ADDRESS_BUG. - - * gen*.c: Must explicitly exit; returning from `main' fails - to indicate nonzero status due to bug in Unix. - - * parse.y (check_line_number): Ignore entire line of unrecognized - #-directive; no error if it is `pragma'. - -Fri Jan 29 06:46:01 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * genrecog.c, genextract.c, genoutput.c: Define bcopy and/or bzero. - - * cccp.c (do_define): Make defn->argnames long enough in no-args case. - - * reload1.c (reload): Make basic_block_needs 0 until after the - frame pointer reg is spilled, so that ALL pseudos in it are spilled. - - * typecheck.c (truthvalue_conversion): - Strip a NOP_EXPR only if it extends, not if it truncates. - (build_unary_op): For TRUTH_NOT_EXPR, call invert_truthvalue - to simplify. - - * Fixes for HPUX support from cph: - * tm-hp9k320.h: Correct names of floating-point registers. - Fix typos in ASM_OUTPUT_OPCODE; also convert `fmove' to `fmov'. - * Makefile (comments for HPUX): - cph says -Wd,-X isn't needed in CFLAGS, nor -lBSD in CLIB. - Also that -g can't be used in CFLAGS with HP's pcc. - * conf-hp9k320.h: New file, like config-m68k.h but with - #defines for the bstring functions. - * m68k.md: Add else-clauses to the HPUX_ASM conditionals on cmp insns. - Reinsert mistakenly-deleted MOTOROLA conditionals around - some OUTPUT_JUMPs. - -Thu Jan 28 09:51:41 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * jump.c (jump_back_p): If TARGET is unconditional, return 0. - -Wed Jan 27 04:18:29 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * combine.c (subst): Simplify (plus (plus x c1) c2). - - * expr.c (emit_push_insn): Don't use small-block push-insns for BLKmode - when one of them would be affected by PUSH_ROUNDING. - Instead, make all the space and then copy. - * expr.c (expand_call): Don't apply PUSH_ROUNDING if BLKmode. - - * Allow `asm' with operands to be marked volatile. - * cse.c (canon_hash): Don't record ASM_OPERANDS that has `volatil'. - * loop.c (invariant_p): ASM_OPERANDS with `volatil' can't be invariant. - * flow.c (volatile_refs_p): Note ASM_OPERANDS that are volatile. - * stmt.c (expand_asm_operands): New arg VOL; mark ASM_OPERANDS as vol. - * typecheck.c (c_expand_asm_operands): New arg VOL. - * parse.y: allow a TYPE_QUAL after ASM. - - * Make cse handle `asm' with operands: - * cse.c (canon_hash): Hash string operands by contents, not address. - * cse.c (exp_equiv_p): Compare string operands with strcmp. - * rtl.c (rtx_equal_p): Compare string operands with strcmp. - - * decl.c (init_decl_processing): Once sizetype is set, - correct the type of the sizes of types already made. - - * cccp.c (do_defines): Don't reject #define foo{a}. - -Tue Jan 26 04:53:16 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * reload.c (find_reloads): Now that `asm' is limited to - MAX_RECOG_OPERANDS, eliminate dynamic allocation of `constraints' - and `constraints1', and go back to `recog_operand' instead of - `operands'. - - * typecheck.c (c_expand_asm_operands): New fn to handle `asm' for C. - Calls expand_asm_operands, and handles output operands that - the other function cannot handle. - - * parse.y: Call that function. - - * stmt.c (expand_asm_operands): Error if too many operands. - #include insn-config.h to get MAX_RECOG_OPERANDS. - - * expr.c (expand_assignment): Use store_field to handle - structure fields and array elements. - - * output-m68k.c (output_move_double): PUSHOP and POPOP were swapped. - Handle insns that push an sp-relative address onto sp; - these can arise with -fomit-frame-pointer. - BUG? Do unoffsetable mem refs using sp and fp lose? - - * m68k.md (movdi,movdf): Allow unoffsetable mem refs - only if the other operand is a register. - - * m68k.md (zero_extendqisi2): SGS conditionals deleted. - Supposedly the MOTOROLA syntax works for those addresses. - - * typecheck.c (default_conversion): - If flag_traditional, preserve unsignedness when promoting ints, - and promote float to double. - - * typecheck.c (build_binary_op_nodefault): - Allow comparisons between pointers and ints. - If not -traditional, warn about them. - -Mon Jan 25 02:11:18 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * expmed.c ({extract,store}_split_bit_field): - Functions {extract,store}_split_reg_bit_field now work for memory - also, and therefore are renamed. - * ({extract,store}_fixed_bit_field): Call those fns when a field - is split across two words. - Also, preserve the `volatil' bit on memory refs. - - * output-m68k.c (output_move_double): Handle nonoffsetable mem refs. - * m68k.md: Relax constraints on movdi, movdf. - - * decl.c (init_decl_processing): Define `int' and `char' first. - Set `sizetype' explicitly. - - * stmt.c (fixup_var_refs_1): May not just return when a SET - doesn't have VAR as its src or dest. - - * varasm.c: Don't include c-tree.h. - - * decl.c (build_struct): Split this function into three: - `xref_tag', `start_struct' and `finish_struct'. - `xref_tag' subsumes `xref_enum'. - - * parse.y (structsp): When parsing `struct foo {...}', define the tag - as a cross-ref before parsing the components. Use the three new fns. - - * regclass.c (regclass): Recognize new-format ASM_OPERANDS insns - with `asm_noperands', and scan their operands as usual. - - * cse.c: In numerous functions such as canon_hash, rtx_cost, etc. - that do tree-walk on rtx, handle vectors of subexpressions. - - * loop.c (invariant_p): Likewise. - - * jump.c (delete_insn): Two bugs: - If insn already deleted, return the first following nondeleted. - Deleting a jump's label can delete NEXT. Make sure return value - is always the first insn following INSN and not yet deleted. - -Sun Jan 24 02:27:49 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * rtl.def (ASM_OPERANDS): Change the rtl expression of an - `asm' with operands so it looks like this for one output operand: - (set OUTPUT (asm_operands:OUTPUTMODE INSNSTRING OUTPUTCONSTRAINT - 0 INPUTS INPUTCONSTRAINTS)). - and like this for multiple outputs: - (PARALLEL [ - (set OUTPUT0 (asm_operands:OUTPUTMODE INSNSTRING OUTPUTCONSTRAINT - 0 INPUTS INPUTCONSTRAINTS)). - (set OUTPUT1 (asm_operands:OUTPUTMODE1 INSNSTRING OUTPUTCONSTRAINT1 - 1 INPUTS INPUTCONSTRAINTS))]) - - * parse.y: Change parsing of `asm' to distinguish input and output - operands. Separate them with colon; separate the string with colon. - - * stmt.c (expand_asm_operands): Receive inputs and outputs separately. - Generate the new rtl format. - - * recog.c (asm_noperands, decode_asm_operands): New fns - for extracting the operands and constraints from these insns. - - * final.c (final): Recognize and output the new rtl format - using those new functions. - - * reload.c (find_reloads): Recognize and get constraints - from the new rtl format using those new functions. - New variable `operand_modes' holds the machine modes of the - operands, obtained one way for ASM_OPERANDS insns and another - for other insns. - - * rtl.c (note_stores): Calling convention - is changed: the first arg FUNCTION now receives as its 2nd arg - 1 if clobbering, 0 if setting. Used to be the CLOBBER or SET rtx. - - * local-alloc.c (reg_is_set): This fn is called from note_stores; - change its arguments. - - * tm-m68k.h (FIXUP_FRAME_POINTER_ADDRESSES): - Use frame_pointer_rtx to recognize intended frame-pointer refs - and not recognize pseudo-regs that were allocated to the frame - pointer register. - - * emit-rtl.c: All refs to frame pointer use a single rtx, in - frame_pointer_rtx. Likewise arg_pointer_rtx for the arg pointer. - If they are the same register, these are the same rtx. - Initialize them in init_emit. - * rtl.h: Declare these vars. - - * stmt.c (assign_parms, assign_stack_local): Use those rtx's. - -Sat Jan 23 00:32:10 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu) - - * reload.c (find_reloads): Don't combine_reloads if `&' constraint - was used. - - * parse.y: Parse `asm' with operands. - * stmt.c (expand_asm_params): New fn: generate an ASM_OPERANDS for - `asm' with operands. - * final.c (final): Output an ASM_OPERANDS insn-body. - * regclass.c (regclass): Ignore ASM_OPERANDS, like ASM_INPUT. - - * reload.c (find_reloads): Handle reloading of ASM_OPERANDS. - The number of operands can no longer be bounded. - For example we can't always put the operands in recog_operands. - - New locals OPERANDS and OPERAND_LOCS point to alloca'd vectors of - operands and their locations. New locals CONSTRAINTS and CONSTRAINTS1 - hold alloca'd vectors of constraints. - - Unfortunately this isn't enough; every vector with length - MAX_RECOG_OPERANDS needs to be dynamically allocated. - Would this be too slow? For now, a cheap "solution" is to delete - any insn that has too many operands. - - * rtl.def: Delete VOLATILE, UNCHANGING and UNDESCRIBED. - Add ASM_OPERANDS. - - * regclass.c (reg_class_record): Delete ref to UNCHANGING. - * loop.c (invariant_p): - * rtl.c (rtx_varies_p): - - * cccp.c: Define __VERSION__. - - * decl.c (shadow_tag): TYPE_NAME doesn't work to get the tag-name - of a struct, so use new function lookup_tag_reverse. - * decl.c (lookup_tag_reverse): Given a type, return its tag name. - - * symout.c (symout_source_file): Output one `struct source'. - * symout.c (symout_lines): Output all of them, and the sourcevector. - * gdbfiles.h: New file for communication between final.c and symout.c. - - * final.c (output_source_line): New arg WRITE_SYMBOLS says write - new GDB-format linenumber info. Assigns a filenum to each source - file name and keeps track of the correspondence. - - * cccp.c (do_include): Output the -M info after searching the dirs; - include the actual dir name. Don't generate "./" for current dir. - -Fri Jan 22 04:10:10 1988 Richard Stallman (rms at frosted-flakes) - - * tm-news800.h: Delete override of INDIRECTABLE_1_ADDRESS. - Output is faster if it doesn't use 32-bit displacements. - - * reload.c (combine_reloads): New function. - If possible, find an input reload - and an output reload that can be turned into one input-output reload. - The old output-reload is marked as inoperative: reload_out - and reload_in both zero. This is called from find_reloads. - - * reload1.c (reload, choose_reload_targets): Ignore inoperative - reloads. - - * Print warnings for variables that could be clobbered by `longjmp'. - * expr.c (expand_call): Generate a NOTE_INSN_SETJMP whenever - `setjmp' or `_setjmp' is called. - * flow.c (propagate_block): When NOTE_INSN_SETJMP is seen, - record the live regs in `regs_live_at_setjmp'. - * stmt.c (uninitialized_vars_warning): Warn about vars that have regs - that are set more than once and are marked in `regs_live_at_setjmp'. - Works through function `regno_clobbered_by_longjmp'. - * rtl.h: Define NOTE_INSN_SETJMP. - - * genrecog.c (try_merge_2): When enforce_modes, keep all the - alternatives segregated by modes and keep the modes in numerical order. - * genrecog.c (write_tree): Make conditions for switch-on-modes - know what difference enforce_mode makes. - -Thu Jan 21 00:12:35 1988 Richard Stallman (rms at frosted-flakes) - - * tm-ns32k.h: Use Stein's definitions of PRINT_OPERAND{,_ADDRESS}; - move the Sequent definitions info tm-sequent.h. - Handle %$ in both old and new PRINT_OPERAND. - Define CPP_PREDEFINES. - - * ns32k.md: Merge some features from Jan Stein's port: - strict_low_part insns, smart output of booleans with small - constant args, acbd insns generalized for other increments. - Use %$ wherever there is an explicit immediate. - Fix shortcomings of adjsp insns: use adjspd in general, - and use adjspb in all the cases that allow it. - Don't bother explicitly clearing CC_REVERSED. - For tstsf/tstdf, output the floating-zero constants - using {f,d}const0_rtx. - - A problem still remains, which is that the Sequent and the - other ns32k assembler syntax require different - - * typecheck.c (unary_complex_value): Use correct datatype for - compound-exprs. - - * gen*.c (main): Use obstack_init instead of obstack_begin. - - * vax.md: define_peephole for andl3 x,y,z; extzv z,....,z - - * m68k.md (tstsi): Use cmpw instead of cmpl to test addr reg. - - * tm-m68k.h: Bugs for 68000 when frame size is over 64k. - For FUNCTION_PROLOGUE, just subtract from sp instead of fp. - For FUNCTION_EPILOGUE, must put the size into a0 and then - all insns must be indexed by a0. And do this even on 68020. - - * tm-isi68.h: Similar changes. - * tm-news800.h, tm-hp9k320.h: Similar changes. - -Wed Jan 20 04:38:21 1988 Richard Stallman (rms at frosted-flakes) - - * cccp.c (error_with_line): New function. - Use it to report the "unterminated whatever" errors. - - * typecheck.c (build_unary_op): Recursive call had missing arg. - - * m68k.md (movhi): If MOTOROLA, the insn that fetches from a - case-dispatch table now defines the LI label as .+2. - * tm-news800.el, tm-hp9k320.h (PRINT_OPERAND_ADDRESS): - Don't subtract 2 when outputting the address in that insn. - -Tue Jan 19 00:02:33 1988 Richard Stallman (rms at frosted-flakes) - - * cse.c (cse_basic_block): Abort if more qtys were used than allocated. - -Mon Jan 18 04:44:28 1988 Richard Stallman (rms at frosted-flakes) - - * cccp.c (special_symbol): tm_mon is origin-0, not origin-1. - - * final.c (output_asm_insn): If %LETTER with no digits, - pass null pointer as the operand. - - * output-m68k.c (singlemove_string): Get rid of %e. - - * stmt.c (fixup_memory_subreg): Convert (SUBREG (MEM a)) to (MEM a'). - * stmt.c (fixup_var_ref_1): Use that fn for operands of - SIGN_EXTRACT and ZERO_EXTRACT, since (SUBREG:SI (REG:QI...)) - could have turned into (SUBREG:SI (MEM:QI...)), which is unsafe. - - * rtl.c (debug_rtx): Print an rtx on stderr, for debugging. - -Sun Jan 17 04:37:20 1988 Richard Stallman (rms at frosted-flakes) - - * gcc.c: options -M* treated like -M. - - * stmt.c (pushcase): Do nothing if the case index has error_mark type. - - * expr.c (expand_increment): Don't use queue for post-inc on memory - if the add insn requires register args. (Better code for RISCs.) - -Sat Jan 16 02:10:22 1988 Richard Stallman (rms at frosted-flakes) - - * ns32k.md: Change register_operand to general_operand. - * ns32k.md (udivmoddisi4): Use match_dup where required. - Comment it out because it can't accept two independent output args. - -Fri Jan 15 00:02:35 1988 Richard Stallman (rms at frosted-flakes) - - * toplev.c: Include sys/time.h only for BSD. For USG, use time.h. - This is correct for HPUX; don't know about others. - - * gcc.c (execute): Eliminate `union wait'. Make `status' an int. - * gcc.c (execute) [USG]: Use fork instead of vfork. - - * final.c (output_source_line): Use ASM_OUTPUT_SOURCE_{FILENAME,LINE} - if they are defined. - - * tm-hp9k320.h: New name for tm-hpux.h. - * tm-hp9k320.h (ASM_OUTPUT_LOCAL): Add 3rd arg to `lcomm' statements. - * tm-hp9k320.h (ASM_OUTPUT_{DOUBLE,FLOAT}): Use `double' and `float'. - * tm-hp9k320.h (CALL_USED_REGISTERS): Don't save any 68881 regs. - * tm-hp9k320.h (CPP_PREDEFINES): different names defined. - * tm-hp9k320.h (HPUX_ASM, NO_DBX_FORMAT, ASM_SPEC): define these. - * tm-hp9k320.h (ASM_OUTPUT_OPCODE): Convert `ftst' to `ftest'. - * tm-hp9k320.h: Define ASM_OUTPUT_SOURCE_{FILENAME,LINE}. - - * m68k.md: Rename `hpux' conditionals to `HPUX_ASM'. - * m68k.md: Reverse `fcmp' args if HPUX_ASM. - - * cccp.c (print_deps): 2 means give all files, 1 means only user files. - * cccp.c (do_include): Support that. - * cccp.c (main): -MM sets 1, -M alone sets 2. - * cccp.c (main): Give fatal error if I/O error in writing. - - * toplev.c (fatal_io_error): Report I/O error on given filename, - and exit. - - * toplev.c (compile_file): Detect error writing asm_out_file. - Always put asm file's name in asm_file_name for err msg. - * symout.c (symout_finish): Detect error writing symfile. - * symout.c (symout_init): Save filename in symfile_name for err msg. - - * gen*.c: Return 1 if ferror (stdout)--in case disk is full. - - * local-alloc.c (block_alloc): Don't crash if 1st rtx - in a PARALLEL is not a SET. - - * tm-m68k.h, tm-news800.h (PRINT_OPERAND). Eliminate code `%e'. - * m68k.md: Change `%e' to `e' everywhere. - * tm-hpux.h (ASM_OUTPUT_OPCODE): Output `move' as `mov'. - - * tm-m68k.h, tm-news800.h, tm-hpux.h (PRINT_OPERAND): - New code `%!' is output as the name for the cc register. - * m68k.md (insns that use andi to ccr): Use `%!' to avoid - conditionals. - - * cse.c: Record in qty_const_insn the insn that stored the - constant value of a qty. When making a REG_WAS_0 note, - store in it the insn that established the value 0. - - * vax.md (movsi): When checking a REG_WAS_0 note, - verify that the insn it points to hasn't been deleted or made a NOTE. - -Thu Jan 14 00:01:35 1988 Richard Stallman (rms at frosted-flakes) - - * toplev.c: Eliminate error_with_line and warning_with_line. - * parse.y, decl.c: Change remaining calls to those two. - - * tree.c (get_unwidened, get_narrower): To see if a COMPONENT_REF - is unsigned, look at the FIELD_DECL, not at the COMPONENT_REF. - - * rtl.c (print_rtx): Print /v for the `volatil' bit. - * expr.c (expand_assignment expand_expr): If handling a COMPONENT_REF, - note whether it is volatile. - - * fold-const.c (fold): a call to split_tree missed an argument. - - * flow.c (volatile_refs_p): Scan an rtx for volatile mem refs. - * flow.c (life_analysis): Record in INSN_VOLATILE which insns - have any volatile mem refs. - * flow.c (mark_used_regs): Always mark an insn with volatile mem refs. - Always pass INSN as an arg. New arg FINAL now says whether - this is the last time scanning. - * flow.c (propagate_block): Don't delete insns with volatile mem refs. - - * flow.c: Remove all refs to `obey_regdecls'. - Calling this with -noreg just doesn't help -W. - -Wed Jan 13 01:13:07 1988 Richard Stallman (rms at frosted-flakes) - - * decl.c (finish_decl): Error if auto var's size isn't known. - Change type to error_mark_node to avoid crash if the var - is used in an expression, since it has no DECL_RTL. - - * output-m68k.c (output_move_const_single): % -> %% for sprintf. - - * parse.y (yylex): Store token_buffer properly after ellipsis. - - * decl.c (duplicate_decls): Don't call layout_decl - for FUNCTION_DECL or TYPE_DECL. - - * toplev.c (warning_with_decl): New warning function with decl as arg. - * (error_with_decl): similar. - - * decl.c: Replace most `yylinerror' calls with `error_with_decl'. - - * decl.c (build_struct): Reform code to detect erroneous bit-fields. - All such errors are now detected here. - Promote bit-fields to int if appropriate. - If traditional, make all int bit-fields unsigned. - Set DECL_ALIGN for members that are not bit-fields. - - * decl.c (grokfield): Don't set DECL_ALIGN here. - - * stor-layout.c (layout_decl): Don't promote the type of a bit-field. - Use TREE_PACKED to distinguish a bit-field. - Don't check the width because build_struct did that. - - * m68k.md (cmpm): Reject if either operand (address) is a constant. - -Tue Jan 12 15:11:20 1988 Richard Stallman (rms at frosted-flakes) - - * cse.c (canon_reg): Never replace ANY hard reg from reg_rtx - because that could alter the machine mode. - - * tm-news800.h: Redefine INDIRECTABLE_1_ADDRESS only if MOTOROLA. - -Mon Jan 11 13:15:45 1988 Richard Stallman (rms at frosted-flakes) - - * jump.c (follow_jumps): If we find a cycle, make it a jump to self. - - * cse.c (predecide_loop_entry): Give up if chase more than 10 jumps. - -Sun Jan 10 14:52:42 1988 Richard Stallman (rms at frosted-flakes) - - * reload1.c (reload): basic_block_needs (new vector) gets 1 - for each basic block that needs a reload. - * reload1.c (spill_hard_reg): Don't spill pseudos that are - confined to a basic block which has no need for any reloads. - * reload1.c (reload): Each cycle that any element of basic_block_needs - changes from 0 to 1, must re-spill all previously spilled regs. - - * regclass.c (record_address_regs): - Skip the charging of ICOST if it is 0. - - * flags.h, toplev.c: New flag -fvolatile. - * typecheck.c (build_indirect_ref): If flag_volatile, - every INDIRECT_REF is marked with TREE_THIS_VOLATILE. - - * fold-const.c (fold): Test in TRUTH_NOT_EXPR case was backward. - Also result type is always `int'. - -Sat Jan 9 04:16:11 1988 Richard Stallman (rms at rice-krispies) - - * flags.h (flag_traditional): New flag. - * toplev.c: recognize -ftraditional and -traditional. - * parse.y (yylex): If flag_traditional, don't recognize - `signed', `const' or `volatile'. - - * decl.c (pushdecl): If flag_traditional, any extern decl - takes effect at top level. - - * tree.c (lvalue_or_else): New 2nd arg for use in error message. - * typecheck.c: All callers pass 2nd arg. - - * global-alloc.c: allocno_preferred_reg can specify a preferred - hard reg for each allocno. If so, try it first (new call to find_reg). - - * global-alloc.c (find_reg): New arg PREFREG specifies reg to try - first. - - * decl.c (build_struct): if :0 bit field at the end, round the - structure size to multiple of EMPTY_FIELD_BOUNDARY. - - * cse.c (make_regs_eqv): Was testing for reg_next_eqv[lastr] == 0 - and should be == -1. - - * reload1.c (reload_as_needed): Fix invalid optimization deleting - the previous store into a pseudo-reg that feeds an input-reload. - It is not safe because a later insn may look in the pseudo's stack - slot for the value. Delete the store only if we can eliminate the - pseudo entirely or if the current insn stores a new value there. - Also verify that reload_in[j] is a REG. - - * reload1.c (reload_as_needed): When doing an input reload from a - pseudo that was stored by the previous insn (not as a reload), - redirect the previous insn into the reload register, if this lets - us eliminate the pseudo entirely. - - * reload1.c (reload_as_needed): In both of the above cases, it's - impossible to prevent a stack slot since one was already assigned, - so don't alter reg_n_refs. Instead, set reg_renumber to record - that this pseudo did get a hard reg. - - * stmt.c: Set `volatil' in pseudo-regs for the user's variables. - - * jump.c (delete_insn): Do nothing if insn already deleted. - - * tm-sun{2,3}.h: #define STRUCTURE_SIZE_BOUNDARY 2 - for compatibility with Sun PCC. Note that 4.3 vax PCC - does not want this. - - * fold-const.c: Replace truncate_unsigned with force_fit_type - which truncates unsigned types and sign-extends signed types. - - * expr.c (do_jump): emit_queue before outputting the jump insns - that use the comparison. - - * stmt.c: Error message for any goto that jumps into a - binding contour that restores a stack level. - - TREE_PACKED (label) means label was defined inside - such a binding contour that is now exited. Using such a label - is an error. - - TREE_ADDRESSABLE (label) means label was used from a place - outside all such binding contours. If this is 1 when - TREE_PACKED is set to 1, it is an error. - - Any other invalid goto must have a fixup. fixup_gotos detects - such invalid gotos. fixup_gotos takes a second arg, which - is the first insn of the contour now being exited. - - * GNU C version 1.17. - -Local Variables: -mode: indented-text -left-margin: 8 -fill-column: 76 -version-control: never -End: |