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[Bug tree-optimization/82726] New: ICE in verify_ssa during GIMPLE pass: pcom
- From: "marxin at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 26 Oct 2017 06:01:09 +0000
- Subject: [Bug tree-optimization/82726] New: ICE in verify_ssa during GIMPLE pass: pcom
- Auto-submitted: auto-generated
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82726
Bug ID: 82726
Summary: ICE in verify_ssa during GIMPLE pass: pcom
Product: gcc
Version: unknown
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: amker at gcc dot gnu.org, rguenth at gcc dot gnu.org
Target Milestone: ---
This ICE looks quite old (4.7.0+):
$ gcc /home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/vect/vect-outer-4e.c
-O3 --param tree-reassoc-width=4 -march=haswell
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/vect/vect-outer-4e.c: In
function ‘foo’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/vect/vect-outer-4e.c:11:1:
error: definition in block 3 follows the use
foo (){
^~~
for SSA_NAME: predreastmp.100_lsm0.119_99 in statement:
predreastmp.102_51 = predreastmp.100_lsm0.119_99;
during GIMPLE pass: pcom
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/vect/vect-outer-4e.c:11:1:
internal compiler error: verify_ssa failed
0x1233d5e verify_ssa(bool, bool)
../../gcc/tree-ssa.c:1188
0xe39d54 execute_function_todo
../../gcc/passes.c:2001
0xe38ccc do_per_function
../../gcc/passes.c:1659
0xe39efd execute_todo
../../gcc/passes.c:2048