[all-commits] [llvm/llvm-project] 53152f: [OpenMP][MLIR][Flang][bbc][Driver] Add OpenMP RTL ...

[agozillon via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 53152f12a47bf6e97f1f2f2d6b71e7b4d4e3740a
      https://github.com/llvm/llvm-project/commit/53152f12a47bf6e97f1f2f2d6b71e7b4d4e3740a
  Author: Andrew Gozillon <Andrew.Gozillon at amd.com>
  Date:   2023-04-05 (Wed, 05 Apr 2023)

  Changed paths:
    M clang/include/clang/Driver/Options.td
    M clang/lib/Driver/ToolChains/Flang.cpp
    M flang/include/flang/Frontend/LangOptions.def
    M flang/include/flang/Tools/CrossToolHelpers.h
    M flang/lib/Frontend/CompilerInvocation.cpp
    M flang/lib/Frontend/FrontendActions.cpp
    M flang/test/Driver/driver-help.f90
    M flang/test/Driver/omp-frontend-forwarding.f90
    A flang/test/Lower/OpenMP/rtl-flags.f90
    M flang/tools/bbc/bbc.cpp

  Log Message:
  -----------
  [OpenMP][MLIR][Flang][bbc][Driver] Add OpenMP RTL Flags to Flang and generate omp.FlagsAttr from them

This patch ports OpenMP RTL flags from the shared Clang compiler
options to Flang. As well as adding a limited subset to bbc.

This patch enables the flags below (and any equals or inverse variants)
for Flang that exist in Clang:

-fopenmp-target-debug
-fopenmp-assume-threads-oversubscription
-fopenmp-assume-teams-oversubscription
-fopenmp-assume-no-nested-parallelism
-fopenmp-assume-no-thread-state

For the bbc tool it only utilises the primary variants to minimize
additional complexity in the tool.

The patch also provides FlagAttr generation from these flags. Which
will be lowered to LLVM-IR in a subsequent patch.

Reviewers: kiranchandramohan, awarzynski

Differential Revision: https://reviews.llvm.org/D147324