[flang] [llvm] [Flang] [OpenMP] Add semantic checks for detach clause in task (PR #119172)

[Thirumalai Shaktivel via llvm-commits]

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@@ -0,0 +1,22 @@
+! REQUIRES: openmp_runtime
+! RUN: %python %S/../test_errors.py %s %flang_fc1 %openmp_flags -fopenmp-version=50
+! RUN: %python %S/../test_errors.py %s %flang_fc1 %openmp_flags -fopenmp-version=51
+
+! OpenMP Version 5.0: 2.10.1
+! Various checks for DETACH Clause
+
+program detach02
+    use omp_lib, only: omp_event_handle_kind
+    integer(omp_event_handle_kind)          :: event_01, event_02
+
+    !TODO: Throw following error for the versions 5.0 and 5.1
+    !ERR: At most one DETACH clause can appear on the TASK directive
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Thirumalai-Shaktivel wrote:

I thought I shouldn't be doing that (calling `SetContextClauseInfo`), but instead use only the `CheckAllowed`.

I will check it again and see what I can do there. Thank you for the suggestion.

https://github.com/llvm/llvm-project/pull/119172