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re PR tree-optimization/26672 (ICE in op_iter_init, triggered by printf->puts optimization)

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2006-03-14  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/26672
	* tree-ssa-propagate.c (set_rhs): Don't walk DEFs if not in
	SSA form.

	* gcc.dg/torture/pr26672.c: New testcase.

From-SVN: r112050
This commit is contained in:
Richard Guenther 2006-03-14 12:50:10 +00:00 committed by Richard Biener
parent 6971d714fe
commit b5564e87d4
4 changed files with 21 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2006-03-14 Richard Guenther <rguenther@suse.de>
PR tree-optimization/26672
* tree-ssa-propagate.c (set_rhs): Don't walk DEFs if not in
SSA form.
2006-03-14 Richard Guenther <rguenther@suse.de>
PR tree-optimization/26667

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2006-03-14 Richard Guenther <rguenther@suse.de>
PR tree-optimization/26672
* gcc.dg/torture/pr26672.c: New testcase.
2006-03-14 Joseph S. Myers <joseph@codesourcery.com>
* gcc.target/powerpc/405-dlmzb-strlen-1.c,

8
gcc/testsuite/gcc.dg/torture/pr26672.c Normal file
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@ -0,0 +1,8 @@
/* { dg-do compile } */
int printf(const char *format, ...);
extern const char help_string[];
void app_opts(void) {
printf("%s", help_string);
}
const char help_string[] = "foo\n";

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

@ -632,7 +632,8 @@ set_rhs (tree *stmt_p, tree expr)
*stmt_p = TREE_SIDE_EFFECTS (expr) ? expr : build_empty_stmt ();
(*stmt_p)->common.ann = (tree_ann_t) ann;
if (TREE_SIDE_EFFECTS (expr))
if (in_ssa_p
&& TREE_SIDE_EFFECTS (expr))
{
/* Fix all the SSA_NAMEs created by *STMT_P to point to its new
replacement. */