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re PR middle-end/52045 (ICE: in execute_todo, at passes.c:1748 with -O3 -ftracer -fno-tree-ccp -fno-tree-copy-prop -fno-tree-dce and stpcpy_chk()) 

2012-01-30  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/52045
	* tree-optimize.c (execute_cleanup_cfg_post_optimizing): Update
	SSA form if cfgcleanup did anything.

	* gcc.dg/pr52045.c: New testcase.

From-SVN: r183722
This commit is contained in:
Richard Guenther 2012-01-30 13:40:24 +00:00 committed by Richard Biener
parent f8698b375a
commit ab448cfa68
4 changed files with 26 additions and 2 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2012-01-30 Richard Guenther <rguenther@suse.de>
PR tree-optimization/52045
* tree-optimize.c (execute_cleanup_cfg_post_optimizing): Update
SSA form if cfgcleanup did anything.
2012-01-30 Richard Guenther <rguenther@suse.de>
PR tree-optimization/52045

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2012-01-30 Richard Guenther <rguenther@suse.de>
PR tree-optimization/52045
* gcc.dg/pr52045.c: New testcase.
2012-01-30 Greta Yorsh <Greta.Yorsh@arm.com>
* gcc.target/arm/di-longlong64-sync-withldrexd.c: Accept

11
gcc/testsuite/gcc.dg/pr52045.c Normal file
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@ -0,0 +1,11 @@
/* { dg-do compile } */
/* { dg-options "-O3 -ftracer -fno-tree-ccp -fno-tree-copy-prop -fno-tree-dce" } */
char *vx;
char buf[20];
void
foo (void)
{
vx = __builtin___stpcpy_chk (buf, vx ? "gh" : "e", sizeof(buf));
}

6
gcc/tree-optimize.c
View File

@ -157,7 +157,9 @@ struct gimple_opt_pass pass_all_early_optimizations =
static unsigned int
execute_cleanup_cfg_post_optimizing (void)
{
cleanup_tree_cfg ();
unsigned int todo = 0;
if (cleanup_tree_cfg ())
todo |= TODO_update_ssa;
maybe_remove_unreachable_handlers ();
cleanup_dead_labels ();
group_case_labels ();
@ -190,7 +192,7 @@ execute_cleanup_cfg_post_optimizing (void)
}
}
}
return 0;
return todo;
}
struct gimple_opt_pass pass_cleanup_cfg_post_optimizing =