[PATCH] D81192: [OPENMP]Fix PR45854: prevent code movement out of the critical region.

[Alexey Bataev via Phabricator via cfe-commits]

ABataev created this revision.
ABataev added reviewers: jdoerfert, mikerice.
Herald added subscribers: llvm-commits, sstefan1, jfb, guansong, hiraditya, yaxunl.
Herald added projects: clang, LLVM.

Need to emit memory barriers upon enter/exit to/from critical region to
prevent code movement.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D81192

Files:
  clang/lib/CodeGen/CGOpenMPRuntime.cpp
  clang/test/OpenMP/critical_codegen.cpp
  clang/test/OpenMP/openmp_win_codegen.cpp
  clang/test/OpenMP/simd_codegen.cpp
  llvm/include/llvm/Frontend/OpenMP/OMPIRBuilder.h
  llvm/lib/Frontend/OpenMP/OMPIRBuilder.cpp

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