[all-commits] [llvm/llvm-project] 37d907: [HazardRec] Allow inserting multiple wait-states s...

[Austin Kerbow via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 37d907899f498c6944fc234ed2742b9923b88952
      https://github.com/llvm/llvm-project/commit/37d907899f498c6944fc234ed2742b9923b88952
  Author: Austin Kerbow <Austin.Kerbow at amd.com>
  Date:   2020-10-20 (Tue, 20 Oct 2020)

  Changed paths:
    M llvm/include/llvm/CodeGen/ScheduleHazardRecognizer.h
    M llvm/include/llvm/CodeGen/TargetInstrInfo.h
    M llvm/lib/CodeGen/PostRAHazardRecognizer.cpp
    M llvm/lib/CodeGen/TargetInstrInfo.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
    M llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
    M llvm/lib/Target/AMDGPU/SIInstrInfo.h
    M llvm/test/CodeGen/AMDGPU/fp-atomic-to-s_denormmode.mir
    M llvm/test/CodeGen/AMDGPU/frem.ll
    M llvm/test/CodeGen/AMDGPU/hazard-hidden-bundle.mir
    M llvm/test/CodeGen/AMDGPU/inserted-wait-states.mir
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.mov.dpp.ll
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.update.dpp.ll
    M llvm/test/CodeGen/AMDGPU/mai-hazards.mir
    M llvm/test/CodeGen/AMDGPU/vmem-vcc-hazard.mir

  Log Message:
  -----------
  [HazardRec] Allow inserting multiple wait-states simultaneously

If a target can encode multiple wait-states into a noop allow emitting such
instructions directly.

Reviewed By: rampitec, dmgreen

Differential Revision: https://reviews.llvm.org/D89753