[all-commits] [llvm/llvm-project] 586fd8: [LoopVectorizer] Fix inloop reductions mask placement

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 586fd86b0a91ef3beb9da664c0ffe5ffb9f19357
      https://github.com/llvm/llvm-project/commit/586fd86b0a91ef3beb9da664c0ffe5ffb9f19357
  Author: David Green <david.green at arm.com>
  Date:   2023-01-05 (Thu, 05 Jan 2023)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
    M llvm/test/Transforms/LoopVectorize/reduction-inloop.ll

  Log Message:
  -----------
  [LoopVectorizer] Fix inloop reductions mask placement

The validation of vplans could fail if an inloop reduction was created
with a block-in mask that did not dominate the reduction. This makes
sure that the insert point is set when creating the mask, to ensure it
dominates the reduction.

Differential Revision: https://reviews.llvm.org/D141003