[all-commits] [llvm/llvm-project] d19a42: [AMDGPU] SIFoldOperands: eagerly erase dead REG_SE...

[Jay Foad via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: d19a42eba98fe853dd52f7dc89d8cd2727c7fc1c
      https://github.com/llvm/llvm-project/commit/d19a42eba98fe853dd52f7dc89d8cd2727c7fc1c
  Author: Jay Foad <jay.foad at amd.com>
  Date:   2021-04-09 (Fri, 09 Apr 2021)

  Changed paths:
    M llvm/lib/Target/AMDGPU/SIFoldOperands.cpp

  Log Message:
  -----------
  [AMDGPU] SIFoldOperands: eagerly erase dead REG_SEQUENCEs

This is fairly cheap to implement and means less work for future
passes like MachineDCE.

Differential Revision: https://reviews.llvm.org/D100188


  Commit: 5a0117b2d0eaedffeeb393bd9915f11cccfe241b
      https://github.com/llvm/llvm-project/commit/5a0117b2d0eaedffeeb393bd9915f11cccfe241b
  Author: Jay Foad <jay.foad at amd.com>
  Date:   2021-04-09 (Fri, 09 Apr 2021)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
    M llvm/test/CodeGen/AMDGPU/srem64.ll
    M llvm/test/CodeGen/AMDGPU/udiv64.ll
    M llvm/test/CodeGen/AMDGPU/urem64.ll

  Log Message:
  -----------
  [AMDGPU] Remove MachineDCE after SIFoldOperands

Remove the MachineDCE pass after the first SIFoldOperands pass now
that SIFoldOperands deletes its own dead instructions.

Differential Revision: https://reviews.llvm.org/D100189


Compare: https://github.com/llvm/llvm-project/compare/f6bff8d15778...5a0117b2d0ea