[all-commits] [llvm/llvm-project] 2f8d69: [AMDGPU][SelectionDAG] Use COPY instead of S_MOV_B...

[Juan Manuel Martinez Caamaño via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2f8d6998451dd8c4095fb60f087eca36974f5d74
      https://github.com/llvm/llvm-project/commit/2f8d6998451dd8c4095fb60f087eca36974f5d74
  Author: Juan Manuel Martinez Caamaño <jmartinezcaamao at gmail.com>
  Date:   2025-03-25 (Tue, 25 Mar 2025)

  Changed paths:
    M llvm/lib/Target/AMDGPU/SIISelLowering.cpp
    M llvm/test/CodeGen/AMDGPU/extract_vector_dynelt.ll
    M llvm/test/CodeGen/AMDGPU/indirect-addressing-si.ll
    M llvm/test/CodeGen/AMDGPU/insert_vector_dynelt.ll
    M llvm/test/CodeGen/AMDGPU/insert_vector_elt.ll
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.ds.append.ll
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.ds.consume.ll
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.ds.gws.barrier.ll
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.ds.gws.init.ll
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.struct.buffer.load.lds.ll
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.struct.ptr.buffer.load.lds.gfx950.ll
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.struct.ptr.buffer.load.lds.ll

  Log Message:
  -----------
  [AMDGPU][SelectionDAG] Use COPY instead of S_MOV_B32 to assign values to M0 (#132957)

This is consistent with what's done on GISel. This allows the register
coalescer to remove the redundant intermediate `s_mov_b32` instructions
by using `m0` directly as the result register.



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