[all-commits] [llvm/llvm-project] 80e80d: [AMDGPU] Fix inline constant encoding for `v_pk_fm...

[Shilei Tian via All-commits]

  Branch: refs/heads/users/shiltian/fix-v_pk_fmac_f16-inline-constant-for-pre-gfx11
  Home:   https://github.com/llvm/llvm-project
  Commit: 80e80df4e61b6e897d71e382e26abb644b312456
      https://github.com/llvm/llvm-project/commit/80e80df4e61b6e897d71e382e26abb644b312456
  Author: Shilei Tian <i at tianshilei.me>
  Date:   2026-01-20 (Tue, 20 Jan 2026)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AsmParser/AMDGPUAsmParser.cpp
    M llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.cpp
    M llvm/lib/Target/AMDGPU/GCNSubtarget.h
    M llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUInstPrinter.cpp
    M llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUMCCodeEmitter.cpp
    M llvm/lib/Target/AMDGPU/SIDefines.h
    M llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
    M llvm/lib/Target/AMDGPU/SIInstrInfo.h
    M llvm/lib/Target/AMDGPU/SIRegisterInfo.td
    M llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp
    M llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.h
    M llvm/lib/Target/AMDGPU/VOP2Instructions.td
    M llvm/test/MC/AMDGPU/gfx11_asm_vop2-fake16.s
    M llvm/test/MC/AMDGPU/gfx11_asm_vop2.s
    M llvm/test/MC/AMDGPU/gfx12_asm_vop2-fake16.s
    M llvm/test/MC/AMDGPU/gfx12_asm_vop2.s
    M llvm/test/MC/Disassembler/AMDGPU/gfx11_dasm_vop2.txt
    M llvm/test/MC/Disassembler/AMDGPU/gfx12_dasm_vop2.txt

  Log Message:
  -----------
  [AMDGPU] Fix inline constant encoding for `v_pk_fmac_f16`

This PR handles`v_pk_fmac_f16` inline constant encoding/decoding differences between pre-GFX11 and GFX11+ hardware.

- Pre-GFX11: fp16 inline constants produce (f16, 0) - value in low 16 bits, zero in high.
- GFX11+: fp16 inline constants are duplicated to both halves (f16, f16).


  Commit: cf6a281798260d1a1d16b467a715f7d16fc40607
      https://github.com/llvm/llvm-project/commit/cf6a281798260d1a1d16b467a715f7d16fc40607
  Author: Shilei Tian <i at tianshilei.me>
  Date:   2026-01-20 (Tue, 20 Jan 2026)

  Changed paths:
    M llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUInstPrinter.cpp
    M llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp
    M llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.h
    M llvm/lib/Target/AMDGPU/VOP2Instructions.td
    M llvm/test/MC/AMDGPU/gfx11_asm_vop2-fake16.s
    M llvm/test/MC/AMDGPU/gfx11_asm_vop2.s
    M llvm/test/MC/Disassembler/AMDGPU/gfx11_dasm_vop2.txt
    M llvm/test/MC/Disassembler/AMDGPU/gfx12_dasm_vop2.txt

  Log Message:
  -----------
  fix review comments


Compare: https://github.com/llvm/llvm-project/compare/262a782ec2af...cf6a28179826

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