[all-commits] [llvm/llvm-project] ef56f4: [flang][OpenMP] Fix reduction of arrays with non-d...

[Leandro Lupori via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ef56f4b5a0e3760e0c1c847999180718be93a1db
      https://github.com/llvm/llvm-project/commit/ef56f4b5a0e3760e0c1c847999180718be93a1db
  Author: Leandro Lupori <leandro.lupori at linaro.org>
  Date:   2025-03-24 (Mon, 24 Mar 2025)

  Changed paths:
    M flang/lib/Lower/OpenMP/PrivateReductionUtils.cpp
    M flang/lib/Lower/OpenMP/PrivateReductionUtils.h
    M flang/lib/Lower/OpenMP/ReductionProcessor.cpp
    M flang/test/Lower/OpenMP/parallel-reduction-allocatable-array.f90
    M flang/test/Lower/OpenMP/parallel-reduction-array-lb.f90
    M flang/test/Lower/OpenMP/parallel-reduction-array.f90
    M flang/test/Lower/OpenMP/parallel-reduction-array2.f90
    M flang/test/Lower/OpenMP/parallel-reduction-pointer-array.f90
    M flang/test/Lower/OpenMP/parallel-reduction3.f90
    M flang/test/Lower/OpenMP/reduction-array-intrinsic.f90
    M flang/test/Lower/OpenMP/wsloop-reduction-allocatable-array-minmax.f90
    M flang/test/Lower/OpenMP/wsloop-reduction-array-assumed-shape.f90
    A flang/test/Lower/OpenMP/wsloop-reduction-array-lb.f90
    A flang/test/Lower/OpenMP/wsloop-reduction-array-lb2.f90
    M flang/test/Lower/OpenMP/wsloop-reduction-array.f90
    M flang/test/Lower/OpenMP/wsloop-reduction-array2.f90
    M flang/test/Lower/OpenMP/wsloop-reduction-multiple-clauses.f90

  Log Message:
  -----------
  [flang][OpenMP] Fix reduction of arrays with non-default lower bounds (#132228)

Using LoopNest's indices with ShapeShifts that have non-default
lower bounds results in accesses to incorrect array elements.
To avoid having to adjust each index, a ShapeShift with default
lower bounds can be used instead.

Fixes #131751



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