[all-commits] [llvm/llvm-project] e7e90d: [AMDGPU] Adding multiple use analysis to SIPeephol...

[Brian Favela via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e7e90dd1c1014b4a7ef77f74af3682168d23ddbf
      https://github.com/llvm/llvm-project/commit/e7e90dd1c1014b4a7ef77f74af3682168d23ddbf
  Author: Brian Favela <brianfavela at microsoft.com>
  Date:   2024-06-14 (Fri, 14 Jun 2024)

  Changed paths:
    M llvm/lib/Target/AMDGPU/SIPeepholeSDWA.cpp
    M llvm/test/CodeGen/AMDGPU/GlobalISel/cvt_f32_ubyte.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/fshl.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/fshr.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.abs.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/saddsat.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/ssubsat.ll
    M llvm/test/CodeGen/AMDGPU/cvt_f32_ubyte.ll
    M llvm/test/CodeGen/AMDGPU/fract-match.ll
    M llvm/test/CodeGen/AMDGPU/fshr.ll
    M llvm/test/CodeGen/AMDGPU/idiv-licm.ll
    M llvm/test/CodeGen/AMDGPU/idot4u.ll
    M llvm/test/CodeGen/AMDGPU/llvm.frexp.ll
    M llvm/test/CodeGen/AMDGPU/machine-sink-temporal-divergence-swdev407790.ll
    M llvm/test/CodeGen/AMDGPU/permute_i8.ll
    M llvm/test/CodeGen/AMDGPU/reassoc-mul-add-1-to-mad.ll
    M llvm/test/CodeGen/AMDGPU/sdwa-peephole.ll
    M llvm/test/CodeGen/AMDGPU/sminmax.v2i16.ll

  Log Message:
  -----------
  [AMDGPU] Adding multiple use analysis to SIPeepholeSDWA (#94800)

Allow for multiple uses of an operand where each instruction can be
promoted to SDWA.

For instance:

; v_and_b32 v2, lit(0x0000ffff), v2
; v_and_b32 v3, 6, v2
; v_and_b32 v2, 1, v2

Can be folded to:
; v_and_b32 v3, 6, sel_lo(v2)
; v_and_b32 v2, 1, sel_lo(v2)



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