[all-commits] [llvm/llvm-project] 1c0fc1: [VPlan] Ensure each iv user is only visited once i...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 1c0fc1f074ea52312356e93e3643b55968cf8dea
      https://github.com/llvm/llvm-project/commit/1c0fc1f074ea52312356e93e3643b55968cf8dea
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2022-03-13 (Sun, 13 Mar 2022)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
    A llvm/test/Transforms/LoopVectorize/induction-multiple-uses-in-same-instruction.ll

  Log Message:
  -----------
  [VPlan] Ensure each iv user is only visited once in transform.

If a recipe has multiple uses of an IV, we crash. It causes a crash when
building llvm-test-suite.

Exposed by 95f76bff1c40bc1c2f.