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[Bug tree-optimization/51760] [4.7 Regression] ICE in set_lattice_value, at tree-ssa-ccp.c:456
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 05 Jan 2012 11:41:56 +0000
- Subject: [Bug tree-optimization/51760] [4.7 Regression] ICE in set_lattice_value, at tree-ssa-ccp.c:456
- Auto-submitted: auto-generated
- References: <bug-51760-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51760
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-01-05 11:41:56 UTC ---
Reduced testcase:
extern inline __attribute__ ((always_inline)) void *
memmove (void *dest, const void *src, __SIZE_TYPE__ len)
{
return __builtin___memmove_chk (dest, src, len, __builtin_object_size (dest,
0));
}
void
foo (void)
{
char a[64], *b;
for (;;)
{
memmove (a, b, 0);
b = a;
}
}