[all-commits] [llvm/llvm-project] 4a305d: [AMDGPU] Exclude certain opcodes from being marked...

[Scott Egerton via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4a305d40a392e41521b6a427a6acd8d02d428f6c
      https://github.com/llvm/llvm-project/commit/4a305d40a392e41521b6a427a6acd8d02d428f6c
  Author: Scott Egerton <9487234+ScottEgerton at users.noreply.github.com>
  Date:   2024-06-12 (Wed, 12 Jun 2024)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPUInsertSingleUseVDST.cpp
    M llvm/lib/Target/AMDGPU/SIInstrInfo.td
    M llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp
    M llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.h
    M llvm/lib/Target/AMDGPU/VOP1Instructions.td
    M llvm/lib/Target/AMDGPU/VOP2Instructions.td
    M llvm/lib/Target/AMDGPU/VOP3Instructions.td
    M llvm/lib/Target/AMDGPU/VOP3PInstructions.td
    M llvm/lib/Target/AMDGPU/VOPCInstructions.td
    M llvm/lib/Target/AMDGPU/VOPInstructions.td
    M llvm/test/CodeGen/AMDGPU/insert-singleuse-vdst.mir

  Log Message:
  -----------
  [AMDGPU] Exclude certain opcodes from being marked as single use (#91802)

The s_singleuse_vdst instruction is used to mark regions of instructions
that produce values that have only one use.
Certain instructions take more than one cycle to execute, resulting in
regions being incorrectly marked.
This patch excludes these multi-cycle instructions from being marked as
either producing single use values or consuming single use values
or both depending on the instruction.



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