[all-commits] [llvm/llvm-project] 1f7d46: [flang][OpenMP] Allocate `reduction` init temps on...

[Kareem Ergawy via All-commits]

  Branch: refs/heads/users/ergawy/reduction_init_temps_on_stack
  Home:   https://github.com/llvm/llvm-project
  Commit: 1f7d4677265ebf8ece574e33b11eabb44f3ba058
      https://github.com/llvm/llvm-project/commit/1f7d4677265ebf8ece574e33b11eabb44f3ba058
  Author: ergawy <kareem.ergawy at amd.com>
  Date:   2025-07-02 (Wed, 02 Jul 2025)

  Changed paths:
    M flang/lib/Lower/Support/PrivateReductionUtils.cpp
    M flang/test/Lower/OpenMP/parallel-reduction-array.f90

  Log Message:
  -----------
  [flang][OpenMP] Allocate `reduction` init temps on the stack for GPUs

Temps needed for the reduction init regions are now allocate on the heap
all the time. However, this is performance killer for GPUs since malloc
calls are prohibitively expensive. Therefore, we should do these
allocations on the stack for GPU reductions.



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