[all-commits] [llvm/llvm-project] ab124b: [SLP]Fix PR49898: Infinite loop in SLP vectorizer.

[cilkplus via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ab124bbe2a7c59cf23da5728dc239aba6f1efabe
      https://github.com/llvm/llvm-project/commit/ab124bbe2a7c59cf23da5728dc239aba6f1efabe
  Author: Alexey Bataev <a.bataev at outlook.com>
  Date:   2021-04-08 (Thu, 08 Apr 2021)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    A llvm/test/Transforms/SLPVectorizer/X86/several_store_chains.ll

  Log Message:
  -----------
  [SLP]Fix PR49898: Infinite loop in SLP vectorizer.

We should not re-try attempt of finding of the consecutive store chain
if it was tried before.

Differential Revision: https://reviews.llvm.org/D100131