[all-commits] [llvm/llvm-project] 464035: Revert "[AMDGPU] SIFixSgprCopies should not proces...

[Nico Weber via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 464035fc7de52b6fe9b09c9f4c9a19fd5d46fcae
      https://github.com/llvm/llvm-project/commit/464035fc7de52b6fe9b09c9f4c9a19fd5d46fcae
  Author: Nico Weber <thakis at chromium.org>
  Date:   2025-04-10 (Thu, 10 Apr 2025)

  Changed paths:
    M llvm/lib/Target/AMDGPU/SIFixSGPRCopies.cpp
    M llvm/test/CodeGen/AMDGPU/agpr-copy-no-free-registers.ll
    M llvm/test/CodeGen/AMDGPU/amdgpu-codegenprepare-idiv.ll
    M llvm/test/CodeGen/AMDGPU/bf16.ll
    M llvm/test/CodeGen/AMDGPU/carryout-selection.ll
    M llvm/test/CodeGen/AMDGPU/cf-loop-on-constant.ll
    M llvm/test/CodeGen/AMDGPU/ctlz_zero_undef.ll
    M llvm/test/CodeGen/AMDGPU/cttz_zero_undef.ll
    M llvm/test/CodeGen/AMDGPU/extract_vector_dynelt.ll
    M llvm/test/CodeGen/AMDGPU/fcopysign.f16.ll
    M llvm/test/CodeGen/AMDGPU/fix-sgpr-copies-phi-regression-issue130646-issue130119.ll
    M llvm/test/CodeGen/AMDGPU/fix-sgpr-copies-phi-regression-issue130646.mir
    M llvm/test/CodeGen/AMDGPU/fptrunc.ll
    M llvm/test/CodeGen/AMDGPU/frem.ll
    M llvm/test/CodeGen/AMDGPU/ftrunc.f64.ll
    M llvm/test/CodeGen/AMDGPU/idiv-licm.ll
    M llvm/test/CodeGen/AMDGPU/indirect-addressing-si.ll
    M llvm/test/CodeGen/AMDGPU/insert-delay-alu-bug.ll
    M llvm/test/CodeGen/AMDGPU/insert_waitcnt_for_precise_memory.ll
    M llvm/test/CodeGen/AMDGPU/llvm.mulo.ll
    M llvm/test/CodeGen/AMDGPU/load-constant-i1.ll
    M llvm/test/CodeGen/AMDGPU/multilevel-break.ll
    M llvm/test/CodeGen/AMDGPU/opt-sgpr-to-vgpr-copy.mir
    M llvm/test/CodeGen/AMDGPU/scalar_to_vector.ll
    M llvm/test/CodeGen/AMDGPU/sdiv.ll
    M llvm/test/CodeGen/AMDGPU/sdiv64.ll
    M llvm/test/CodeGen/AMDGPU/sdwa-peephole.ll
    M llvm/test/CodeGen/AMDGPU/sminmax.v2i16.ll
    M llvm/test/CodeGen/AMDGPU/sra.ll
    M llvm/test/CodeGen/AMDGPU/srem.ll
    M llvm/test/CodeGen/AMDGPU/srem64.ll
    R llvm/test/CodeGen/AMDGPU/triton_regression_no_waterfall.ll
    R llvm/test/CodeGen/AMDGPU/triton_regression_no_waterfall.mir
    M llvm/test/CodeGen/AMDGPU/udiv.ll
    M llvm/test/CodeGen/AMDGPU/udiv64.ll
    M llvm/test/CodeGen/AMDGPU/udivrem.ll
    M llvm/test/CodeGen/AMDGPU/urem64.ll
    M llvm/test/CodeGen/AMDGPU/wave32.ll

  Log Message:
  -----------
  Revert "[AMDGPU] SIFixSgprCopies should not process twice VGPR to SGPR copies inserted by PHI preprocessing. (#134153)"

This reverts commit 0563569978fee1e780a560494c89869074933f58.

Breaks tests, see comments on https://github.com/llvm/llvm-project/pull/134153



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