https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70357
Bug ID: 70357
Summary: [openacc][gomp4] ICE on reduction (+:sum) private
(sum)
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: vries at gcc dot gnu.org
Target Milestone: ---
testcase:
...
int
main (void)
{
unsigned int sum = 0;
#pragma acc parallel reduction (+:sum) private(sum)
;
return 0;
}
...
ICE when compiling for openacc with gomp-4_0-branch:
...
$ gcc -O2 -fopenacc private.c
private.c: In function ‘main’:
private.c:5:11: internal compiler error: Segmentation fault
#pragma acc parallel reduction (+:sum) private(sum)
^~~
0xf65b5a crash_signal
src/gcc/toplev.c:335
0xd02bdb lookup_decl
src/gcc/omp-low.c:1080
0xd15cb6 lower_oacc_reductions
src/gcc/omp-low.c:5714
0xd4806b lower_omp_target
src/gcc/omp-low.c:16978
0xd49240 lower_omp_1
src/gcc/omp-low.c:17301
0xd4976f lower_omp
src/gcc/omp-low.c:17394
0xd48e49 lower_omp_1
src/gcc/omp-low.c:17242
0xd4976f lower_omp
src/gcc/omp-low.c:17394
0xd48e49 lower_omp_1
src/gcc/omp-low.c:17242
0xd4976f lower_omp
src/gcc/omp-low.c:17394
0xd4b743 execute_lower_omp
src/gcc/omp-low.c:18129
0xd4b7e8 execute
src/gcc/omp-low.c:18166
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
...
On trunk instead we get:
...
private.c: In function ‘main’:
private.c:5:34: error: ‘sum’ appears more than once in data clauses
#pragma acc parallel reduction (+:sum) private(sum)
...
