[all-commits] [llvm/llvm-project] a41eda: [AMDGPU] Allow hoising of V_READFIRSTLANE_B32 for ...

[Stanislav Mekhanoshin via All-commits]

  Branch: refs/heads/users/rampitec/readanylane
  Home:   https://github.com/llvm/llvm-project
  Commit: a41eda741c245946b0691a9397efd101b6e7798e
      https://github.com/llvm/llvm-project/commit/a41eda741c245946b0691a9397efd101b6e7798e
  Author: Stanislav Mekhanoshin <Stanislav.Mekhanoshin at amd.com>
  Date:   2026-02-09 (Mon, 09 Feb 2026)

  Changed paths:
    M llvm/lib/Target/AMDGPU/SIISelLowering.cpp
    M llvm/lib/Target/AMDGPU/VOP1Instructions.td
    M llvm/test/CodeGen/AMDGPU/dag-preserve-disjoint-flag.ll
    M llvm/test/CodeGen/AMDGPU/isel-amdgcn-cs-chain-intrinsic-w32.ll
    M llvm/test/CodeGen/AMDGPU/isel-amdgcn-cs-chain-intrinsic-w64.ll
    M llvm/test/CodeGen/AMDGPU/isel-amdgpu-cs-chain-intrinsic-dyn-vgpr-w32.ll
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.make.buffer.rsrc.ll
    A llvm/test/CodeGen/AMDGPU/readanylane.ll

  Log Message:
  -----------
  [AMDGPU] Allow hoising of V_READFIRSTLANE_B32 for uniform operand

readfirstlane can be moved across control flow for uniform inputs.
The MachineInstr::NoConvergent attribute allows hoisting
which is otherwise prohibited for a convergent instruction.



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