[all-commits] [llvm/llvm-project] 8116e8: [Flang][OpenMP] Fix crash lowering parallel do wit...

[CHANDRA GHALE via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8116e869531490f28ecaa3bcaac1fe644b545e0e
      https://github.com/llvm/llvm-project/commit/8116e869531490f28ecaa3bcaac1fe644b545e0e
  Author: CHANDRA GHALE <chandra.nitdgp at gmail.com>
  Date:   2026-04-27 (Mon, 27 Apr 2026)

  Changed paths:
    M flang/lib/Lower/OpenMP/Utils.cpp
    A flang/test/Lower/OpenMP/tile-parallel-do.f90

  Log Message:
  -----------
  [Flang][OpenMP] Fix crash lowering parallel do with nested tile construct (#193955)

This fixes a crash in OpenMP lowering for cases like `!$omp parallel do
with nested !$omp tile sizes(...)` .
The loop-walk logic now correctly steps through intermediate OpenMP
transformation wrappers to find the actual do construct, instead of
assuming it is directly nested.

Fixes :
[https://github.com/llvm/llvm-project/issues/193256](https://github.com/llvm/llvm-project/issues/193256)
sample reproducer :
[https://godbolt.org/z/b7zecYEMT](https://godbolt.org/z/b7zecYEMT)

Co-authored-by: Chandra Ghale <ghale at pe34genoa.hpc.amslabs.hpecorp.net>



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