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[Bug tree-optimization/34005] [4.3 Regression] ICE: verify_ssa failed (expected an SSA_NAME object)
- From: "tbm at cyrius dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 6 Nov 2007 15:52:45 -0000
- Subject: [Bug tree-optimization/34005] [4.3 Regression] ICE: verify_ssa failed (expected an SSA_NAME object)
- References: <bug-34005-12387@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from tbm at cyrius dot com 2007-11-06 15:52 -------
When I change the testcase slightly I get a difference ICE:
tbm@devel-tbm:~$ /usr/lib/gcc-snapshot/bin/gcc -c -O2 -ftree-vectorize
vnc-Unwrap2.c
vnc-Unwrap2.c: In function 'XdmcpUnwrap':
vnc-Unwrap2.c:4: error: control flow in the middle of basic block 3
vnc-Unwrap2.c:4: error: control flow in the middle of basic block 3
vnc-Unwrap2.c:4: error: control flow in the middle of basic block 3
vnc-Unwrap2.c:4: error: control flow in the middle of basic block 3
vnc-Unwrap2.c:4: error: control flow in the middle of basic block 3
vnc-Unwrap2.c:4: error: control flow in the middle of basic block 3
vnc-Unwrap2.c:4: internal compiler error: verify_flow_info failed
/* Testcase by Martin Michlmayr <tbm@cyrius.com> */
void XdmcpUnwrap (unsigned char *output, int k)
{
int i;
unsigned char blocks[2][8];
k = (k == 0) ? 1 : 0;
for (i = 0; i < 8; i++)
output[i] = blocks[k][i];
}
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34005