[all-commits] [llvm/llvm-project] f4fb85: [SLP]Do not consider deleted instruction as extern...

[cilkplus via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f4fb85481136daedfd7f302543f620b0340ec51d
      https://github.com/llvm/llvm-project/commit/f4fb85481136daedfd7f302543f620b0340ec51d
  Author: Alexey Bataev <a.bataev at outlook.com>
  Date:   2021-07-30 (Fri, 30 Jul 2021)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    M llvm/test/Transforms/SLPVectorizer/AArch64/gather-root.ll
    M llvm/test/Transforms/SLPVectorizer/SystemZ/pr34619.ll
    M llvm/test/Transforms/SLPVectorizer/X86/PR39774.ll
    M llvm/test/Transforms/SLPVectorizer/X86/addsub.ll
    M llvm/test/Transforms/SLPVectorizer/X86/horizontal-minmax.ll
    M llvm/test/Transforms/SLPVectorizer/X86/ordering-bug.ll
    M llvm/test/Transforms/SLPVectorizer/X86/resched.ll

  Log Message:
  -----------
  [SLP]Do not consider deleted instruction as external users.

If the instruction was previously deleted, it should not be treated as
an external user. This fixes cost estimation and removes dead
extractelement instructions.

Differential Revision: https://reviews.llvm.org/D107106