Remove obstacks.

	* Makefile.in (ggc-callbacks.o): Remove target.
	(flow.o): Depend on GGC_H.
	* alias.c (init_alias_analysis):
	Remove ggc_p conditionals.
	(end_alias_analysis): Likewise.
	* basic-block.h (init_flow): New function.
	(allocate_reg_life_data): Declare.
	* bb-reorder.c	(function_obstack): Replace with ...
	(flow_obstack): ... new variable.
	(fixup_reorder_chain): Use it.
	* c-decl.c (ggc_p): Remove.
	(caller-save.c): Don't call oballoc/obfree.
	* combine.c (struct
	undobuf): Remove storage.
	(try_combine): Don't call oballoc.
	(undo_all): Don't call obfree.
	* cse.c (insert): Use xmalloc, not
	oballoc.
	(cse_main): Adjust accordingly.
	* dwarf2out.c (save_rtx): Remove
	obstack code.
	(dwarf2out_init): Remove ggc_p conditionals.
	* emit-rtl.c (rtl_obstack): Remove.
	(gen_rtx_CONST_INT): Remove ggc_p conditionals.
	(make_insn_raw): Likewise.
	(emit_insn_before): Likewise.
	(emit_insn_after): Likewise.
	(emit_insn): Likewise.
	(gen_sequence): Likewise.
	(copy_insn_1): Remove handling of `b' RTL components.
	(init_emit_once): Remove ggc_p conditionals.
	* except.c (create_rethrow_ref): Don't fool with obstacks.
	(add_partial_entry): Likewise.
	(call_get_eh_context): Likewise.
	(begin_protect_partials): Likewise.
	(protect_with_terminate): Likewise.
	* explow.c
	(plus_constant_wide): Likewise.
	* expr.c (init_expr_once):
	Likewise.
	(emit_block_move): Likewise.
	(clear_storage): Likewise.
	(expand_expr): Likewise.
	* flow.c (function_obstack): Remove.
	(flow_obstack): New variable.
	(flow_firstobj): Likewise.
	(create_base_block): Use the flow_obstack.
	(split_block): Likewise.
	(split_edge): Likewise.
	(calculate_global_regs_live): Likewise.
	(allocate_bb_life_data): Make it static.  Likewiwse.
	(init_flow): New function.
	(size_int_type_wide): Remove ggc_p conditionals.
	* function.c
	(push_function_context_to): Don't call save_tree_status.
	(pop_function_context_from): Or restore_tree_status.
	(assign_stack_local_1): Don't call push_obstacks.
	(find_fixup_replacement): Use xmalloc.
	(fixup_var_refs_insns): Free the storage.
	(insns_for_mem_walk): Don't mess with obstacks.
	(instantiate_decls): Likewise.
	(trampoline_address): Likewise.
	(expand_function_end): Likewise.
	* function.h (sturct function):
	Remove obstack-related variables.
	(save_tree_status): Don't declare.
	(restore_tree_status): Likewise.
	* gcse.c (compute_can_copy):
	Don't call oballoc/obfree.
	* genattrtab.c (operate_exp): Remove
	ggc_p conditionals.
	(simplify_cond): Likewise.
	(simplify_test_exp): Don't mess with obstacks.
	(optimize_attrs): Likewise.
	* gengenrtl.c (gendef): Don't include
	ggc_p conditionals.
	* ggc-callbacks.c (ggc_p): Remove.
	* ggc-none.c (ggc_p): Remove.
	* ggc.h (ggc_p): Don't declare.
	* integrate.c (save_for_inline): Don't mess with obstacks.
	(integrate_decl_tree): Likewise.
	(output_inline_function): Likewise.
	* lists.c
	(init_EXPR_INSN_LIST_cache): Likewise.
	* loop.c (temp_obstack):
	Remove.
	(rtl_obstack): Likewise.
	(init_loop): Don't mess with obstacks.
	(reg_address_cost): Free BIVs and GIVs.
	(check_insns_for_bivs): Use xmalloc, not oballoc.
	(find_mem_givs): Likewise.
	(record_biv): Likewise.
	(general_induction_var): Likewise.
	(product_cheap_p): Likewse.
	* optabs.c (init_one_libfunc): Remove
	ggc_p conditional.
	* print-tree.c (debug_tree): Don't use
	oballoc/obfree.
	(print_node): Likewise.
	* profile.c (output_func_start_profiler):
	Remove call to temporary_allocation.
	* reload1.c
	(eliminate_regs_in_insn): Don't mess with obstacks.
	* resource.c
	(mark_target_live_regs): Use xmalloc.
	(free_resource_info): Free the memory.
	* rtl.c (rtl_obstack):
	Remove.
	(rtvec_alloc): Don't mess with obstacks.
	(rtx_alloc): Likewise.
	(rtx_free): Remove.
	(copy_rtx): Don't handle `b' cases.
	(read_rtx): Use a local rtl_obstack.
	* rtl.h (oballoc): Remove.
	(obfree): Likewise.
	(pop_obstacks): Likewise.
	(push_obstacks): Likewise.
	(allocate_bb_life_data): Likewise.
	(allocate_reg_life_data): Likewise.
	(rtx_free): Likewise.
	* sdbout.c (sdbout_queue_anonymous_type):
	Use tree_cons, not saveable_tree_cons.
	* simplify-rtx.c
	(cselib_init): Don't mess with obstacks.
	* stmt.c
	(mark_block_nesting): Mark the label_chain.
	(epxand_label): Use ggc_alloc, not oballoc.
	(clear_last_expr): Don't mess with obstacks.
	(expand_decl_cleanup): Likewise.
	(expand_dcc_cleanup): Likewise.
	(expand_dhc_cleanup): Likewise.
	(expand_anon_union_decl): Likewise.
	(add_case_node): Use xmalloc, not oballoc.
	(free_case_nodes): New function.
	(expand_end_case): Call it.
	* stor-layout.c (layout_type): Don't
	mess with obstacks.
	(layout_type): Likewise.
	* toplev.c (wrapup_global_declarations):
	Likewise.
	(compile_file): Remove ggc_p conditionals.
	(rest_of_compilation): Call init_flow.  Remove ggc_p conditionals.
	(decode_f_option): Remove ggc_p conditionals.
	* tree.c
	(function_maybepermanent_obstack): Remove.
	(maybepermanent_obstack): Likewise.
	(function_obstack): Likewise.
	(tmeporary_obstack): Likewise.
	(momentary_obstack): Likewise.
	(temp_decl_obstack): Likewise.
	(saveable_obstack): Likewise.
	(rtl_obstack): Likewise.
	(current_obstack): Likewise.
	(expression_obstack): Likewise.
	(struct obstack_stack): Likewise.
	(obstack_stack): Likewise.
	(obstack_stack_obstack): Likewise.
	(maybepermanent_firstobj): Likewise.
	(temporary_firstobj): Likewise.
	(momentary_firstobj): Likewise.
	(temp_decl_firstobj): Likewise.
	(momentary_function_firstobj): Likewise.
	(all_types_permanent): Likewise.
	(struct momentary_level): Likewise.
	(momentary_stack): Likewise.
	(init_obstacks): Remove initialization of removed obstacks.
	(save_tree_status): Remove.
	(restore_tree_status): Likewise.
	(temporary_allocation): Liekwise.
	(end_temporary_allocation): Liekwise.
	(resume_temporary_allocation): Likewise.
	(saveable_allocation): Likewise.
	(push_obstacks): Likewise.
	(push_obstacks_nochange): Likewise.
	(pop_obstacks): Likewise.
	(allocation_temporary_p): Likewise.
	(permanent_allocation): Likewise.
	(preserve_data): Likewise.
	(preserve_initializer): Likewise.
	(rtl_in_current_obstack): Likewise.
	(rtl_in_saveable_obstack): Likewise.
	(oballoc): Likewise.
	(obfree): Likewise.
	(savealloc): Likewise.
	(expralloc): Likewise.
	(print_obstack_name): Likewise.
	(debug_obstack): Likewise.
	(object_permanent_p): Likewise.
	(push_momentary): Likewise.
	(perserve_momentary): Likewise.
	(clear_momentary): Likewise.
	(pop_momentary): Likewise.
	(pop_momentary_nofree): Likewise.
	(suspend_momentary): Likewise.
	(resume_momentary): Likewise.
	(make_node): Don't set TREE_PERMANENT.
	(copy_node): Remove ggc_p conditionals.  Don't set TYPE_OBSTACK.
	Don't set TREE_PERMANENT.
	(get_identifier): Remove ggc_p conditionals.
	(build_string): Likewise.
	(make_tree_vec): Likewise.
	(build_decl_list): Remove.
	(build_expr_list): Likewise.
	(tree_cons): Remove ggc_p conditionals.
	(decl_tree_cons): Remove.
	(expr_tree_cons): Likewise.
	(perm_tree_cons): Likewise.
	(temp_tree_cons): Likewise.
	(saveable_tree_cons): Likewise.
	(build1): Remove ggc_p conditionals.
	(build_parse_node): Likewise.
	(build_type_attribute_variant): Don't mess with obstacks.
	(build_type_copy): Likewise.
	(type_hash_canon): Likewise.
	(build_pointer_type): Likewise.
	(build_reference_type): Likewise.
	(build_index_type): Likewise.
	(build_range_type): Likewise.
	(dump_tree_statistics): Don't print obstack information.
	* tree.h
	(struct tree_common): Remove permanent_flag.
	(TREE_PERMANENT): Remove.
	(TREE_SET_PERMANENT): Likewise.
	(TYPE_OBSTACK): Likewise.
	(struct tree_type): Remove obstack.
	(oballoc): Remove.
	(savealloc): Likewise.
	(build_decl_list): Likewise.
	(build_expr_list): Likewise.
	(perm_tree_cons): Likewise.
	(temp_tree_cons): Likewise.
	(saveable_tree_cons): Likewise.
	(decl_tree_cons): Likewise.
	(expr_tree_cons): Likewise.
	(suspend_momentary): Likewise.
	(allocation_temporary_p): Likewise.
	(resume_momentary): Likewise.
	(push_obstacks_nochange): Likewise.
	(permanent_allocation): Likewise.
	(push_momentary): Likewise.
	(clear_momentary): Likewise.
	(pop_momentary): Likewise.
	(end_temporary_allocation): Likewise.
	(pop_obstacks): Likewise.
	(push_obstacks): Likewise.
	(pop_momentary_nofree): LIkewise.
	(preserve_momentary): Likewise.
	(saveable_allocation): Likewise.
	(temporary_allocation): Likewise.
	(resume_temporary_allocation): Likewise.
	(perserve_initializer): Likewise.
	(debug_obstack): Likewise.
	(rtl_in_current_obstack): Likewise.
	(rtl_in_saveable_obstack): Likewise.
	(obfree): Likewise.
	* varasm.c (current_obstack): Remove.
	(saveable_obstack): Remove.
	(rtl_obstack): Remove.
	(immed_double_const): Don't mess with obstacks.
	(immed_real_cons): Likewise.
	(output_constant_def): Likewise.
	(init_varasm_status): Use xcalloc.
	(mark_pool_constant): Mark the pool constant itself.
	(free_varasm_status): Free memory.
	(decode_rtx_const): Call bzero directly, rather than expanding it
	inline.
	(record_rtx_const): Don't mess with obstacks.
	(force_const_mem): Likewise.
	* config/arm/arm.c (arm_encode_call_attribute): Remove ggc_p
	conditionals.
	(aof_pic_entry): Likewise.
	* config/ia64/ia64.c (ia64_encode_section_info): Likewise.
	* config/m32r/m32r.c (m32r_encode_section_info): Likewise.
	* config/pa/pa.c (saveable_obstack): Remove.
	(rtl_obstack): Likewise.
	(current_obstack): Likewise.
	(output_call): Don't mess with obstacks.
	(hppa_encode_label): Remove ggc_p conditionals.
	* config/romp/romp.c (get_symref): Don't mess with obstacks.
	* config/rs6000/rs6000.c (output_toc): Remove ggc_p conditional.
	(rs6000_encode_section_info): Likewise.
	* config/sh/sh.c (get_fpscr_rtx): Likewise.

From-SVN: r36856

1 files changed, 4 insertions, 62 deletions

diff --git a/gcc/tree.h b/gcc/tree.h
index c00fafd840f..80a3282a237 100644
--- a/gcc/tree.h
+++ b/gcc/tree.h
@@ -133,7 +133,6 @@ struct tree_common
   ENUM_BITFIELD(tree_code) code : 8;
   unsigned side_effects_flag : 1;
   unsigned constant_flag : 1;
-  unsigned permanent_flag : 1;
   unsigned addressable_flag : 1;
   unsigned volatile_flag : 1;
   unsigned readonly_flag : 1;
@@ -155,6 +154,10 @@ struct tree_common
   unsigned lang_flag_4 : 1;
   unsigned lang_flag_5 : 1;
   unsigned lang_flag_6 : 1;
+  /* This flag is presently unused.  However, language front-ends
+     should not make use of this flag; it is reserved for future
+     expansion.  */
+  unsigned dummy : 1;
 };
 
 /* The following table lists the uses of each of the above flags and
@@ -230,8 +233,6 @@ struct tree_common
        TREE_CONSTANT in
            all expressions
 
-   permanent_flag: TREE_PERMANENT in all nodes
-
    unsigned_flag:
 
        TREE_UNSIGNED in
@@ -568,17 +569,6 @@ extern void tree_class_check_failed PARAMS ((const tree, int,
    if the value is constant.  */
 #define TREE_CONSTANT(NODE) ((NODE)->common.constant_flag)
 
-/* Nonzero means permanent node;
-   node will continue to exist for the entire compiler run.
-   Otherwise it will be recycled at the end of the function.
-   This flag is always zero if garbage collection is in use.
-   Try not to use this.  Only set it with TREE_SET_PERMANENT.  */
-#define TREE_PERMANENT(NODE) ((NODE)->common.permanent_flag)
-#define TREE_SET_PERMANENT(NODE) do { \
-  if (!ggc_p && current_obstack == &permanent_obstack) \
-    TREE_PERMANENT(NODE) = 1; \
-} while (0) 
-
 /* In INTEGER_TYPE or ENUMERAL_TYPE nodes, means an unsigned type.
    In FIELD_DECL nodes, means an unsigned bit field.
    The same bit is used in functions as DECL_BUILT_IN_NONANSI.  */
@@ -890,7 +880,6 @@ struct tree_block
 #define TYPE_MAIN_VARIANT(NODE) (TYPE_CHECK (NODE)->type.main_variant)
 #define TYPE_NONCOPIED_PARTS(NODE) (TYPE_CHECK (NODE)->type.noncopied_parts)
 #define TYPE_CONTEXT(NODE) (TYPE_CHECK (NODE)->type.context)
-#define TYPE_OBSTACK(NODE) (TYPE_CHECK (NODE)->type.obstack)
 #define TYPE_LANG_SPECIFIC(NODE) (TYPE_CHECK (NODE)->type.lang_specific)
 
 /* For a VECTOR_TYPE node, this describes a different type which is emitted
@@ -1152,7 +1141,6 @@ struct tree_type
   union tree_node *binfo;
   union tree_node *noncopied_parts;
   union tree_node *context;
-  struct obstack *obstack;
   HOST_WIDE_INT alias_set;
   /* Points to a structure whose details depend on the language in use.  */
   struct lang_type *lang_specific;
@@ -1858,9 +1846,7 @@ extern tree integer_types[itk_none];
 extern int exact_log2_wide             PARAMS ((unsigned HOST_WIDE_INT));
 extern int floor_log2_wide             PARAMS ((unsigned HOST_WIDE_INT));
 
-extern char *oballoc			PARAMS ((int));
 extern char *permalloc			PARAMS ((int));
-extern char *savealloc			PARAMS ((int));
 extern char *expralloc			PARAMS ((int));
 
 /* Compute the number of bytes occupied by 'node'.  This routine only
@@ -1917,8 +1903,6 @@ extern tree build_complex		PARAMS ((tree, tree, tree));
 extern tree build_string		PARAMS ((int, const char *));
 extern tree build1			PARAMS ((enum tree_code, tree, tree));
 extern tree build_tree_list		PARAMS ((tree, tree));
-extern tree build_decl_list		PARAMS ((tree, tree));
-extern tree build_expr_list		PARAMS ((tree, tree));
 extern tree build_decl			PARAMS ((enum tree_code, tree, tree));
 extern tree build_block			PARAMS ((tree, tree, tree, tree, tree));
 extern tree build_expr_wfl              PARAMS ((tree, const char *, int, int));
@@ -2177,11 +2161,6 @@ extern tree chainon			PARAMS ((tree, tree));
 /* Make a new TREE_LIST node from specified PURPOSE, VALUE and CHAIN.  */
 
 extern tree tree_cons			PARAMS ((tree, tree, tree));
-extern tree perm_tree_cons		PARAMS ((tree, tree, tree));
-extern tree temp_tree_cons		PARAMS ((tree, tree, tree));
-extern tree saveable_tree_cons		PARAMS ((tree, tree, tree));
-extern tree decl_tree_cons		PARAMS ((tree, tree, tree));
-extern tree expr_tree_cons		PARAMS ((tree, tree, tree));
 
 /* Return the last tree node in a chain.  */
 
@@ -2620,34 +2599,9 @@ extern tree gettags				PARAMS ((void));
 
 extern tree build_range_type PARAMS ((tree, tree, tree));
 
-/* Call when starting to parse a declaration:
-   make expressions in the declaration last the length of the function.
-   Returns an argument that should be passed to resume_momentary later.  */
-extern int suspend_momentary PARAMS ((void));
-
-extern int allocation_temporary_p PARAMS ((void));
-
-/* Call when finished parsing a declaration:
-   restore the treatment of node-allocation that was
-   in effect before the suspension.
-   YES should be the value previously returned by suspend_momentary.  */
-extern void resume_momentary PARAMS ((int));
-
 /* Called after finishing a record, union or enumeral type.  */
 extern void rest_of_type_compilation PARAMS ((tree, int));
 
-/* Save the current set of obstacks, but don't change them.  */
-extern void push_obstacks_nochange PARAMS ((void));
-
-extern void permanent_allocation PARAMS ((int));
-extern void push_momentary PARAMS ((void));
-extern void clear_momentary PARAMS ((void));
-extern void pop_momentary PARAMS ((void));
-extern void end_temporary_allocation PARAMS ((void));
-
-/* Pop the obstack selection stack.  */
-extern void pop_obstacks PARAMS ((void));
-
 /* In alias.c */
 extern void record_component_aliases		PARAMS ((tree));
 extern HOST_WIDE_INT get_alias_set		PARAMS ((tree));
@@ -2657,18 +2611,10 @@ extern HOST_WIDE_INT lang_get_alias_set		PARAMS ((tree));
 
 /* In tree.c */
 extern int really_constant_p		PARAMS ((tree));
-extern void push_obstacks		PARAMS ((struct obstack *,
-						struct obstack *));
-extern void pop_momentary_nofree	PARAMS ((void));
-extern void preserve_momentary		PARAMS ((void));
-extern void saveable_allocation		PARAMS ((void));
-extern void temporary_allocation	PARAMS ((void));
-extern void resume_temporary_allocation	PARAMS ((void));
 extern void set_identifier_size		PARAMS ((int));
 extern int int_fits_type_p		PARAMS ((tree, tree));
 extern int tree_log2			PARAMS ((tree));
 extern int tree_floor_log2		PARAMS ((tree));
-extern void preserve_initializer	PARAMS ((void));
 extern void preserve_data		PARAMS ((void));
 extern int object_permanent_p		PARAMS ((tree));
 extern int type_precision		PARAMS ((tree));
@@ -2683,9 +2629,6 @@ extern tree type_hash_lookup		PARAMS ((unsigned int, tree));
 extern void type_hash_add		PARAMS ((unsigned int, tree));
 extern unsigned int type_hash_list	PARAMS ((tree));
 extern int simple_cst_list_equal	PARAMS ((tree, tree));
-extern void debug_obstack		PARAMS ((char *));
-extern void rtl_in_current_obstack	PARAMS ((void));
-extern void rtl_in_saveable_obstack	PARAMS ((void));
 extern void init_tree_codes		PARAMS ((void));
 extern void dump_tree_statistics	PARAMS ((void));
 extern void print_obstack_statistics	PARAMS ((const char *,
@@ -2702,7 +2645,6 @@ extern int real_twop			PARAMS ((tree));
 extern void start_identifier_warnings	PARAMS ((void));
 extern void gcc_obstack_init		PARAMS ((struct obstack *));
 extern void init_obstacks		PARAMS ((void));
-extern void obfree			PARAMS ((char *));
 extern void build_common_tree_nodes	PARAMS ((int));
 extern void build_common_tree_nodes_2	PARAMS ((int));