https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108367
Bug ID: 108367
Summary: [12/13 Regression] ICE: verify_ssa failed (error:
definition in block 4 does not dominate use in block
3)
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code, openacc
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
gcc 13.0.0 20230108 snapshot (g:e3a4bd0bbdccdde0cff85f93064b01a44fb10d2a) ICEs
when compiling libgomp/testsuite/libgomp.oacc-c-c++-common/pr89376.c w/ -Os
-fopenacc -fno-tree-fre -fno-tree-vrp -g:
% gcc-13 -Os -fopenacc -fno-tree-fre -fno-tree-vrp -g -c
libgomp/testsuite/libgomp.oacc-c-c++-common/pr89376.c
libgomp/testsuite/libgomp.oacc-c-c++-common/pr89376.c: In function
'main._omp_fn.0':
libgomp/testsuite/libgomp.oacc-c-c++-common/pr89376.c:14:1: error: definition
in block 4 does not dominate use in block 3
14 | }
| ^
for SSA_NAME: rw_7 in statement:
# DEBUG rw => rw_7
during GIMPLE pass: parloops
libgomp/testsuite/libgomp.oacc-c-c++-common/pr89376.c:14:1: internal compiler
error: verify_ssa failed
0x1149446 verify_ssa(bool, bool)
/var/tmp/portage/sys-devel/gcc-13.0.0_p20230108/work/gcc-13-20230108/gcc/tree-ssa.cc:1211
0xdfea25 execute_function_todo
/var/tmp/portage/sys-devel/gcc-13.0.0_p20230108/work/gcc-13-20230108/gcc/passes.cc:2098
0xdfee5e execute_todo
/var/tmp/portage/sys-devel/gcc-13.0.0_p20230108/work/gcc-13-20230108/gcc/passes.cc:2145
