[all-commits] [llvm/llvm-project] 8497b7: [AMDGPU] Support TFE D16 format buffer loads on gf...

[Arseniy Obolenskiy via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8497b7a259bbc8239d7358dc7bf83eb04b363c76
      https://github.com/llvm/llvm-project/commit/8497b7a259bbc8239d7358dc7bf83eb04b363c76
  Author: Arseniy Obolenskiy <arseniy.obolenskiy at amd.com>
  Date:   2026-09-13 (Sun, 13 Sep 2026)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPUGISel.td
    M llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
    M llvm/lib/Target/AMDGPU/AMDGPURegBankLegalizeRules.cpp
    M llvm/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp
    M llvm/lib/Target/AMDGPU/BUFInstructions.td
    M llvm/lib/Target/AMDGPU/GCNSubtarget.h
    M llvm/lib/Target/AMDGPU/SIISelLowering.cpp
    M llvm/lib/Target/AMDGPU/SIISelLowering.h
    M llvm/lib/Target/AMDGPU/SIInstrInfo.td
    M llvm/lib/Target/AMDGPU/SIInstructions.td
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.struct.ptr.buffer.format.i8.xfail.ll
    A llvm/test/CodeGen/AMDGPU/llvm.amdgcn.struct.ptr.buffer.load.format.d16.tfe.ll

  Log Message:
  -----------
  [AMDGPU] Support TFE D16 format buffer loads on gfx8/10/11/12 (#211465)

gfx90a has no hardware encoding for TFE D16 format buffer loads, so
reject the combination there with a diagnostic. Other targets
(gfx8/10/11/12) do have real encodings, so add codegen support for them
instead of rejecting unconditionally.



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