[all-commits] [llvm/llvm-project] 8fdd47: [flang][OpenMP] Add semantic checks for occurrence...

[arnamoy10 via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8fdd475c85634c4a5e5cd83d7dc15ff56c458813
      https://github.com/llvm/llvm-project/commit/8fdd475c85634c4a5e5cd83d7dc15ff56c458813
  Author: Arnamoy Bhattacharyya <arnamoy.bhattacharyya at huawei.com>
  Date:   2021-06-18 (Fri, 18 Jun 2021)

  Changed paths:
    M flang/lib/Semantics/check-omp-structure.cpp
    M flang/lib/Semantics/check-omp-structure.h
    A flang/test/Semantics/omp-nested-barrier.f90

  Log Message:
  -----------
  [flang][OpenMP] Add semantic checks for occurrence of nested Barrier regions

This patch adds the following nesting check for `barrier` constructs:

```
A barrier region may not be closely nested inside a worksharing, loop, task, taskloop, critical, ordered, atomic, or master region.
```

Also adds a test case for the check,

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D99888