[PATCH] D91839: [flang][openmp] Separate memory-order-clause parser creating OmpClause node

[Valentin Clement via Phabricator via llvm-commits]

clementval created this revision.
clementval added reviewers: kiranchandramohan, kiranktp, SouraVX, sameeranjoshi.
Herald added subscribers: llvm-commits, jfb, guansong, yaxunl.
Herald added a project: LLVM.
clementval requested review of this revision.
Herald added a reviewer: jdoerfert.
Herald added a subscriber: sstefan1.

This patch introduce the separate parser for the memory-order-clause from the general
OmpClauseList. This parser still creates OmpClause node and therefore can use all the feature
from TableGen and the OmpStructureChecker.
This is applied only for the Flush construct in this patch and it should be applied for 
atomic as well.

This is the approach we disscussed several time during the weekly call.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D91839

Files:
  flang/include/flang/Parser/dump-parse-tree.h
  flang/include/flang/Parser/parse-tree.h
  flang/lib/Lower/OpenMP.cpp
  flang/lib/Parser/openmp-parsers.cpp
  flang/lib/Parser/unparse.cpp
  flang/lib/Semantics/check-omp-structure.cpp
  flang/lib/Semantics/check-omp-structure.h
  flang/test/Semantics/omp-clause-validity01.f90

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