[all-commits] [llvm/llvm-project] 7a7b36: Revert "[MachineCSE] Allow PRE of instructions tha...

[john-brawn-arm via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7a7b36e96b948651ba7184b9190a3af19330f4f9
      https://github.com/llvm/llvm-project/commit/7a7b36e96b948651ba7184b9190a3af19330f4f9
  Author: John Brawn <john.brawn at arm.com>
  Date:   2022-10-28 (Fri, 28 Oct 2022)

  Changed paths:
    M llvm/lib/CodeGen/MachineCSE.cpp
    M llvm/test/CodeGen/AMDGPU/GlobalISel/hip.extern.shared.array.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/udiv.i64.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/urem.i64.ll
    M llvm/test/CodeGen/AMDGPU/selectcc-opt.ll
    R llvm/test/CodeGen/PowerPC/machine-cse-rm-pre.mir
    M llvm/test/CodeGen/Thumb2/LowOverheadLoops/memcall.ll

  Log Message:
  -----------
  Revert "[MachineCSE] Allow PRE of instructions that read physical registers"

This reverts commit 628467e53f4ceecd2b5f0797f07591c66d9d9d2a.

This is causing a miscompile in ffmpeg when compiled for armv7.