| Issue |
135108
|
| Summary |
[Flang][OpenMP] Assertion `success && "Privatization failed due to existing binding"' failed.
|
| Labels |
flang
|
| Assignees |
|
| Reporter |
k-arrows
|
Reproducer:
```f90
!$omp parallel sections
!$omp section
do i = 1, 2
end do
!$omp section
do i = 1, 2
end do
!$omp end parallel sections
end
```
With assertion-disabled flang, the following output is obtained:
https://godbolt.org/z/GbfW7vYKj
```txt
flang-21: warning: OpenMP support in flang is still experimental [-Wexperimental-option]
error: loc("/app/example.f90":6:5): operand #1 does not dominate this use
error: verification of lowering to FIR failed
Compiler returned: 1
```
With assertion-enabled flang, the reproducer hits the following assertion:
```txt
flang: /path_to_project/llvm-project/flang/lib/Lower/OpenMP/DataSharingProcessor.cpp:152: void Fortran::lower::omp::DataSharingProcessor::cloneSymbol(const semantics::Symbol *): Assertion `success && "Privatization failed due to existing binding"' failed.
```
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