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[Bug tree-optimization/38359] [4.3/4.4 regression] ICE in set_lattice_value, at tree-ssa-ccp.c:466
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 2 Dec 2008 12:21:38 -0000
- Subject: [Bug tree-optimization/38359] [4.3/4.4 regression] ICE in set_lattice_value, at tree-ssa-ccp.c:466
- References: <bug-38359-5724@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from rguenth at gcc dot gnu dot org 2008-12-02 12:21 -------
Minimal testcase:
unsigned _ov_64_seek_lap (_Bool x1, _Bool x2, _Bool x3)
{
unsigned ltmp_3978_7__PHI_TEMPORARY;
unsigned ltmp_4011_7__PHI_TEMPORARY;
signed ltmp_4011_7;
if (!x1 || !x2)
while (1) ;
if (x3)
ltmp_3978_7__PHI_TEMPORARY = 0xffffff7e;
else
ltmp_3978_7__PHI_TEMPORARY = 1;
ltmp_4011_7 = -1;
return ltmp_4011_7 >> ltmp_3978_7__PHI_TEMPORARY;
}
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38359