http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59984
Bug ID: 59984
Summary: OpenMP and Cilk Plus SIMD pragma makes loop incorrect
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: evstupac at gmail dot com
GCC generates incorrect code for the SIMD loop (#pragma [omp] simd) with
function call that have pointer parameters.
(test case attached)
gcc test.c foo.c -fcilkplus -O3
./a.out ; echo $?
1
gcc test.c foo.c -fcilkplus -O0
./a.out ; echo $?
0
the same for -fopenmp -DENABLE_OMP instead of -fcilkplus
Moreover g++ crashes on the test:
g++ test.c -fcilkplus -O3 -c
test.c: In function 'int main()':
test.c:10:5: error: dead STMT in EH table
int main()
^
# .MEM_11 = VDEF <.MEM_39>
foo (_10, &v1, &v2);
test.c:10:5: internal compiler error: verify_gimple failed
0xb774b3 verify_gimple_in_cfg(function*)
/export/users/mstester/stability/svn/trunk/gcc/tree-cfg.c:4853
0xa9fc52 execute_function_todo
/export/users/mstester/stability/svn/trunk/gcc/passes.c:1853
0xaa05a3 execute_todo
/export/users/mstester/stability/svn/trunk/gcc/passes.c:1887
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.
