https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90771
Bug ID: 90771
Summary: Omp for with default(none) and const variable fails to
compile
Product: gcc
Version: 9.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libgomp
Assignee: unassigned at gcc dot gnu.org
Reporter: jodebo_beck at gmx dot de
CC: jakub at gcc dot gnu.org
Target Milestone: ---
Compiling the following code works with gcc 8.3 but no longer works with gcc 9:
int getNumRows() {
return 10;
}
int main() {
const int rows = getNumRows();
#pragma omp parallel for default( none )
for( int row = 0; row < rows ; ++row) {
}
}
Compiler with g++ -fopenmp results in the following error message:
<source>: In function 'int main()':
<source>:9:5: error: 'rows' not specified in enclosing 'parallel'
9 | for( int row = 0; row < rows ; ++row) {
| ^~~
<source>:8:13: error: enclosing 'parallel'
8 | #pragma omp parallel for default( none )
| ^~~
Compiler returned: 1
(link to compiler explorer: https://godbolt.org/z/YfO7tD)
I am not sure, if the code is not correct or if this is a regression. Clang and
MSVC does compile it.
