[all-commits] [llvm/llvm-project] f40672: [Flang][OpenMP] Add lowering support for DO SIMD

[Sergio Afonso via All-commits]

  Branch: refs/heads/users/skatrak/composite-lower-06-dosimd
  Home:   https://github.com/llvm/llvm-project
  Commit: f40672d4e9a7dcbd6c89dc7e438747d1b5486d8c
      https://github.com/llvm/llvm-project/commit/f40672d4e9a7dcbd6c89dc7e438747d1b5486d8c
  Author: Sergio Afonso <safonsof at amd.com>
  Date:   2024-07-04 (Thu, 04 Jul 2024)

  Changed paths:
    M flang/lib/Lower/OpenMP/OpenMP.cpp
    R flang/test/Lower/OpenMP/Todo/omp-do-simd-aligned.f90
    M flang/test/Lower/OpenMP/Todo/omp-do-simd-linear.f90
    R flang/test/Lower/OpenMP/Todo/omp-do-simd-safelen.f90
    R flang/test/Lower/OpenMP/Todo/omp-do-simd-simdlen.f90
    M flang/test/Lower/OpenMP/if-clause.f90
    M flang/test/Lower/OpenMP/loop-compound.f90
    A flang/test/Lower/OpenMP/wsloop-schedule.f90
    M flang/test/Lower/OpenMP/wsloop-simd.f90
    M mlir/lib/Target/LLVMIR/Dialect/OpenMP/OpenMPToLLVMIRTranslation.cpp

  Log Message:
  -----------
  [Flang][OpenMP] Add lowering support for DO SIMD

This patch adds support for lowering 'DO SIMD' constructs to MLIR. SIMD
information is now stored in an `omp.simd` loop wrapper, which is currently
ignored by the OpenMP dialect to LLVM IR translation stage.

The end result is that runtime behavior of compiled 'DO SIMD' constructs does
not change after this patch, so 'DO SIMD' still runs like 'DO' (i.e. SIMD width
= 1). However, all of the required information is now present in the resulting
MLIR representation.



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