[all-commits] [llvm/llvm-project] 4536c6: [flang][OpenMP] Enhance parser support for atomic ...

[Kiran Kumar T P via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 4536c6acb3809eaadc836f24f091db1b50b82af9
      https://github.com/llvm/llvm-project/commit/4536c6acb3809eaadc836f24f091db1b50b82af9
  Author: Kiran Kumar T P <kirankumar.tp at amd.com>
  Date:   2020-09-08 (Tue, 08 Sep 2020)

  Changed paths:
    M flang/docs/OpenMP-4.5-grammar.txt
    M flang/include/flang/Parser/dump-parse-tree.h
    M flang/include/flang/Parser/parse-tree.h
    M flang/lib/Parser/openmp-parsers.cpp
    M flang/lib/Parser/unparse.cpp
    M flang/test/Semantics/omp-atomic.f90

  Log Message:
  -----------
  [flang][OpenMP] Enhance parser support for atomic construct to OpenMP 5.0

Summary:
This patch enhances parser support for atomic construct to OpenMP 5.0.
2.17.7 atomic -> ATOMIC [clause [,]] atomic-clause [[,] clause] |
                 ATOMIC [clause]
       clause -> memory-order-clause | HINT(hint-expression)
       memory-order-clause -> SEQ_CST | ACQ_REL | RELEASE | ACQUIRE | RELAXED
       atomic-clause -> READ | WRITE | UPDATE | CAPTURE

The patch includes code changes and testcase modifications.

Reviewed By: DavidTruby, kiranchandramohan, sameeranjoshi

Differential Revision: https://reviews.llvm.org/D82931