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[Bug tree-optimization/28814] [4.1/4.2 regression] in compare_values, at tree-vrp.c:415
- From: "tbm at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 23 Aug 2006 09:38:33 -0000
- Subject: [Bug tree-optimization/28814] [4.1/4.2 regression] in compare_values, at tree-vrp.c:415
- References: <bug-28814-13133@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from tbm at gcc dot gnu dot org 2006-08-23 09:38 -------
Reduced testcase:
struct w49
{
union
{
}
value;
};
f9887 (struct w49 a23040)
{
unsigned r9887;
if (((struct structure_type24753 *) (r9887 - 1)) == ((void *) 0))
{
backtrace ("stalin.sc", 7222, 248274);
}
}
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28814