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[Bug tree-optimization/33855] [4.3 Regression] Segfault in verify_ssa/execute_function_todo with -O
- From: "tbm at cyrius dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 22 Oct 2007 07:08:05 -0000
- Subject: [Bug tree-optimization/33855] [4.3 Regression] Segfault in verify_ssa/execute_function_todo with -O
- References: <bug-33855-12387@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from tbm at cyrius dot com 2007-10-22 07:08 -------
When I change the testcase slightly, namely
- vsorc.vqd[indx] = t*0.0fj;
+ vsorc.vqd[indx] = t;
then I get:
(sid)30051:tbm@em64t: ~] /usr/lib/gcc-snapshot/bin/gcc -c -O1 nec2c-main.c
nec2c-main.c: In function 'foo':
nec2c-main.c:19: warning: incompatible implicit declaration of built-in
function 'cabsl'
Illegally registering a virtual SSA name :cstore.11_25 in the SSA->Normal
phase.
nec2c-main.c:9: internal compiler error: SSA corruption
Please submit a full bug report,
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33855