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tree-ssa-alias.c (init_alias_info): Call bitmap_obstack_release in every call starting with the second one...

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* tree-ssa-alias.c (init_alias_info): Call bitmap_obstack_release
	in every call starting with the second one, instead of only when
	alias_bitmap_obstack.elements != NULL.

From-SVN: r140377
This commit is contained in:
Jakub Jelinek 2008-09-15 23:56:35 +02:00 committed by Jakub Jelinek
parent a0044be570
commit 1fdeb82f8d
2 changed files with 17 additions and 1 deletions
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14
gcc/ChangeLog
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@ -1,5 +1,19 @@
2008-09-15 Jakub Jelinek <jakub@redhat.com>
* tree-ssa-alias.c (init_alias_info): Call bitmap_obstack_release
in every call starting with the second one, instead of only when
alias_bitmap_obstack.elements != NULL.
* tree-predcom.c (filter_suitable_components): Free all refs in
act->refs vector before calling release_component.
(add_ref_to_chain): Free ref if not adding it to chain->refs.
* tree-data-ref.c (free_subscripts): Free all subscript objects.
* tree-loop-linear.c (linear_transform_loops): Initialize
lambda_obstack only after calling perfect_loop_nest_depth.
Goto free_and_continue instead of just continue for later failures.
PR middle-end/37479
* doc/invoke.texi: Document -fno-dwarf2-cfi-asm.

4
gcc/tree-ssa-alias.c
View File

@ -2067,6 +2067,7 @@ init_alias_info (void)
struct alias_info *ai;
referenced_var_iterator rvi;
tree var;
static bool alias_bitmap_obstack_initialized;
ai = XCNEW (struct alias_info);
ai->ssa_names_visited = sbitmap_alloc (num_ssa_names);
@ -2094,9 +2095,10 @@ init_alias_info (void)
/* Next time, we will need to reset alias information. */
cfun->gimple_df->aliases_computed_p = true;
if (alias_bitmap_obstack.elements != NULL)
if (alias_bitmap_obstack_initialized)
bitmap_obstack_release (&alias_bitmap_obstack);
bitmap_obstack_initialize (&alias_bitmap_obstack);
alias_bitmap_obstack_initialized = true;
return ai;
}