[all-commits] [llvm/llvm-project] 4e83e5: [GVN] Add missing ICF update

[aeubanks via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4e83e59eb8f096c8399489c61c1db034814a76ba
      https://github.com/llvm/llvm-project/commit/4e83e59eb8f096c8399489c61c1db034814a76ba
  Author: Arthur Eubanks <aeubanks at google.com>
  Date:   2021-04-06 (Tue, 06 Apr 2021)

  Changed paths:
    M llvm/lib/Transforms/Scalar/GVN.cpp
    A llvm/test/Transforms/GVN/pr49193.ll

  Log Message:
  -----------
  [GVN] Add missing ICF update

performScalarPREInsertion() inserts instructions into blocks that we
need to tell ImplicitControlFlowTracking about, otherwise the ICF cache
may be invalid.

Fixes PR49193.

Reviewed By: nikic

Differential Revision: https://reviews.llvm.org/D99909