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tree-ssa-operands.c (add_virtual_operand): Only mark stores as has_volatile_ops if alias information is not available. 

2007-09-04  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-operands.c (add_virtual_operand): Only mark
	stores as has_volatile_ops if alias information is not available.

From-SVN: r128089
This commit is contained in:
Richard Biener 2007-09-04 15:29:15 +00:00
parent 817a54f1cd
commit 16ae1645b1
2 changed files with 9 additions and 3 deletions
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9
gcc/ChangeLog
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@ -1,8 +1,13 @@
2007-08-29 Andrew Haley <aph@redhat.com>
2007-09-04 Richard Guenther <rguenther@suse.de>
* tree-ssa-operands.c (add_virtual_operand): Only mark
stores as has_volatile_ops if alias information is not available.
2007-09-04 Andrew Haley <aph@redhat.com>
* config/arm/libgcc-bpabi.ver: Add _Unwind_Backtrace as GCC_4.3.0.
2007-08-08 Andrew Haley <aph@redhat.com>
2007-09-04 Andrew Haley <aph@redhat.com>
* config/arm/libunwind.S (UNWIND_WRAPPER _Unwind_Backtrace): New.
* config/arm/unwind-arm.h (__gnu_Unwind_Backtrace): New.

3
gcc/tree-ssa-operands.c
View File

@ -1494,7 +1494,8 @@ add_virtual_operand (tree var, stmt_ann_t s_ann, int flags,
if (aliases == NULL)
{
if (!gimple_aliases_computed_p (cfun))
if (!gimple_aliases_computed_p (cfun)
&& (flags & opf_def))
s_ann->has_volatile_ops = true;
/* The variable is not aliased or it is an alias tag. */