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, 12 insertions, 75 deletions

diff --git a/gcc/genattrtab.c b/gcc/genattrtab.c
index 46b9bdd..0796a1b 100644
--- a/gcc/genattrtab.c
+++ b/gcc/genattrtab.c
@@ -1784,20 +1784,7 @@ operate_exp (op, left, right)
 	  /* If the resulting cond is trivial (all alternatives
 	     give the same value), optimize it away.  */
 	  if (allsame)
-	    {
-	      if (!ggc_p)
-		obstack_free (rtl_obstack, newexp);
-	      return operate_exp (op, left, XEXP (right, 1));
-	    }
-
-	  /* If the result is the same as the RIGHT operand,
-	     just use that.  */
-	  if (rtx_equal_p (newexp, right))
-	    {
-	      if (!ggc_p)
-		obstack_free (rtl_obstack, newexp);
-	      return right;
-	    }
+	    return operate_exp (op, left, XEXP (right, 1));
 
 	  return newexp;
 	}
@@ -1843,20 +1830,12 @@ operate_exp (op, left, right)
       /* If the cond is trivial (all alternatives give the same value),
 	 optimize it away.  */
       if (allsame)
-	{
-	  if (!ggc_p)
-	    obstack_free (rtl_obstack, newexp);
-	  return operate_exp (op, XEXP (left, 1), right);
-	}
+	return operate_exp (op, XEXP (left, 1), right);
 
       /* If the result is the same as the LEFT operand,
 	 just use that.  */
       if (rtx_equal_p (newexp, left))
-	{
-	  if (!ggc_p)
-	    obstack_free (rtl_obstack, newexp);
-	  return left;
-	}
+	return left;
 
       return newexp;
     }
@@ -2675,18 +2654,12 @@ simplify_cond (exp, insn_code, insn_index)
 
   if (len == 0)
     {
-      if (!ggc_p)
-	obstack_free (rtl_obstack, first_spacer);
       if (GET_CODE (defval) == COND)
 	return simplify_cond (defval, insn_code, insn_index);
       return defval;
     }
   else if (allsame)
-    {
-      if (!ggc_p)
-	obstack_free (rtl_obstack, first_spacer);
-      return exp;
-    }
+    return exp;
   else
     {
       rtx newexp = rtx_alloc (COND);
@@ -3200,7 +3173,6 @@ simplify_test_exp (exp, insn_code, insn_index)
   struct insn_ent *ie;
   int i;
   rtx newexp = exp;
-  char *spacer = (char *) obstack_finish (rtl_obstack);
 
   /* Don't re-simplify something we already simplified.  */
   if (RTX_UNCHANGING_P (exp) || MEM_IN_STRUCT_P (exp))
@@ -3212,19 +3184,11 @@ simplify_test_exp (exp, insn_code, insn_index)
       left = SIMPLIFY_TEST_EXP (XEXP (exp, 0), insn_code, insn_index);
       SIMPLIFY_ALTERNATIVE (left);
       if (left == false_rtx)
-	{
-	  if (!ggc_p)
-	    obstack_free (rtl_obstack, spacer);
-	  return false_rtx;
-	}
+	return false_rtx;
       right = SIMPLIFY_TEST_EXP (XEXP (exp, 1), insn_code, insn_index);
       SIMPLIFY_ALTERNATIVE (right);
       if (left == false_rtx)
-	{
-	  if (!ggc_p)
-	    obstack_free (rtl_obstack, spacer);
-	  return false_rtx;
-	}
+	return false_rtx;
 
       /* If either side is an IOR and we have (eq_attr "alternative" ..")
 	 present on both sides, apply the distributive law since this will
@@ -3253,11 +3217,7 @@ simplify_test_exp (exp, insn_code, insn_index)
 	left = simplify_and_tree (left, &right, insn_code, insn_index);
 
       if (left == false_rtx || right == false_rtx)
-	{
-	  if (!ggc_p)
-	    obstack_free (rtl_obstack, spacer);
-	  return false_rtx;
-	}
+	return false_rtx;
       else if (left == true_rtx)
 	{
 	  return right;
@@ -3313,30 +3273,18 @@ simplify_test_exp (exp, insn_code, insn_index)
       left = SIMPLIFY_TEST_EXP (XEXP (exp, 0), insn_code, insn_index);
       SIMPLIFY_ALTERNATIVE (left);
       if (left == true_rtx)
-	{
-	  if (!ggc_p)
-	    obstack_free (rtl_obstack, spacer);
-	  return true_rtx;
-	}
+	return true_rtx;
       right = SIMPLIFY_TEST_EXP (XEXP (exp, 1), insn_code, insn_index);
       SIMPLIFY_ALTERNATIVE (right);
       if (right == true_rtx)
-	{
-	  if (!ggc_p)
-	    obstack_free (rtl_obstack, spacer);
-	  return true_rtx;
-	}
+	return true_rtx;
 
       right = simplify_or_tree (right, &left, insn_code, insn_index);
       if (left == XEXP (exp, 0) && right == XEXP (exp, 1))
 	left = simplify_or_tree (left, &right, insn_code, insn_index);
 
       if (right == true_rtx || left == true_rtx)
-	{
-	  if (!ggc_p)
-	    obstack_free (rtl_obstack, spacer);
-	  return true_rtx;
-	}
+	return true_rtx;
       else if (left == false_rtx)
 	{
 	  return right;
@@ -3420,17 +3368,9 @@ simplify_test_exp (exp, insn_code, insn_index)
 	return XEXP (left, 0);
 
       if (left == false_rtx)
-	{
-	  if (!ggc_p)
-	    obstack_free (rtl_obstack, spacer);
-	  return true_rtx;
-	}
+	return true_rtx;
       else if (left == true_rtx)
-	{
-	  if (!ggc_p)
-	    obstack_free (rtl_obstack, spacer);
-	  return false_rtx;
-	}
+	return false_rtx;
 
       /* Try to apply De`Morgan's laws.  */
       else if (GET_CODE (left) == IOR)
@@ -3564,7 +3504,6 @@ optimize_attrs ()
 	  for (iv = insn_code_values[i]; iv; iv = iv->next)
 	    {
 	      struct obstack *old = rtl_obstack;
-	      char *spacer = (char *) obstack_finish (temp_obstack);
 
 	      attr = iv->attr;
 	      av = iv->av;
@@ -3593,8 +3532,6 @@ optimize_attrs ()
 		  insert_insn_ent (av, ie);
 		  something_changed = 1;
 		}
-	      if (!ggc_p)
-		obstack_free (temp_obstack, spacer);
 	    }
 	}
     }