[all-commits] [llvm/llvm-project] 61f11f: [Flang][OpenMP][OpenACC] Fix exit out of a region ...

[sameeranjoshi via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 61f11f807cfc359b38b9e22d005456f924464c30
      https://github.com/llvm/llvm-project/commit/61f11f807cfc359b38b9e22d005456f924464c30
  Author: sameeran joshi <sameeranjayant.joshi at amd.com>
  Date:   2020-10-30 (Fri, 30 Oct 2020)

  Changed paths:
    M flang/lib/Semantics/check-acc-structure.cpp
    M flang/lib/Semantics/check-acc-structure.h
    M flang/lib/Semantics/check-directive-structure.h
    M flang/lib/Semantics/check-omp-structure.cpp
    M flang/test/Semantics/omp-clause-validity01.f90

  Log Message:
  -----------
  [Flang][OpenMP][OpenACC] Fix exit out of a region in OpenMP parallel construct.

>From below mentioned standard references
OpenACC 3.0 Standards document
840 • A program may not branch into or out of an OpenACC parallel construct

OpenMP 5.0 Standards document
A program that branches into or out of a parallel region is non-conforming.

This patch
Resolves the issue of exit out of a parallel region, other branching out issues like goto statements are not handled with this patch.
Moves code from D87906 to be reused by other OpenMP/OpenACC to check-directive-structure.h.
Adds support in OpenMP parallel construct and a test case to verify.

Reviewed By: clementval

Differential Revision: https://reviews.llvm.org/D88655