[all-commits] [llvm/llvm-project] cf792f: [SLP]Fix a crash for the replaced vectorized value.

Alexey Bataev via All-commits all-commits at lists.llvm.org
Thu Apr 27 09:35:25 PDT 2023

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: cf792f664a75ea2b45962e81ea4487fc44b00232
  Author: Alexey Bataev <a.bataev at outlook.com>
  Date:   2023-04-27 (Thu, 27 Apr 2023)

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

  Log Message:
  [SLP]Fix a crash for the replaced vectorized value.

If two nodes share the same value, which is replaced in one of the
nodes, need to automatically replace same value in all nodes. Btter to
use WeakTrackingVH for this to fix compiler crash.

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