[all-commits] [llvm/llvm-project] 4dce7c: [MachineLICM] delete dead flag if the duplicated d...

[Chen Zheng via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 4dce7c2e2092953f2cea1a2c1ffd4a53ec2531ac
      https://github.com/llvm/llvm-project/commit/4dce7c2e2092953f2cea1a2c1ffd4a53ec2531ac
  Author: Chen Zheng <czhengsz at cn.ibm.com>
  Date:   2020-12-20 (Sun, 20 Dec 2020)

  Changed paths:
    M llvm/lib/CodeGen/MachineLICM.cpp
    A llvm/test/CodeGen/PowerPC/machinelicm-cse-dead-flag.mir

  Log Message:
  -----------
  [MachineLICM] delete dead flag if the duplicated def outside of loop is dead.

Fixup dead flags for CSE-ed instructions.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D92557