[all-commits] [llvm/llvm-project] 5679be: AMDGPU: Migrate more tests away from undef

[Matt Arsenault via All-commits]

  Branch: refs/heads/users/arsenm/amdgpu/migrate-more-tests-from-undef
  Home:   https://github.com/llvm/llvm-project
  Commit: 5679be1b12a79ce1c22d4f588de634ac64a5116b
      https://github.com/llvm/llvm-project/commit/5679be1b12a79ce1c22d4f588de634ac64a5116b
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2025-03-14 (Fri, 14 Mar 2025)

  Changed paths:
    M llvm/test/CodeGen/AMDGPU/agpr-copy-no-free-registers.ll
    M llvm/test/CodeGen/AMDGPU/amdgpu-codegenprepare-fold-binop-select.ll
    M llvm/test/CodeGen/AMDGPU/andorbitset.ll
    M llvm/test/CodeGen/AMDGPU/cndmask-no-def-vcc.ll
    M llvm/test/CodeGen/AMDGPU/combine-add-zext-xor.ll
    M llvm/test/CodeGen/AMDGPU/fold-fabs.ll
    M llvm/test/CodeGen/AMDGPU/i1-copy-implicit-def.ll
    M llvm/test/CodeGen/AMDGPU/memory-legalizer-invalid-addrspace.mir
    M llvm/test/CodeGen/AMDGPU/merge-load-store-vreg.mir
    M llvm/test/CodeGen/AMDGPU/multi-divergent-exit-region.ll
    M llvm/test/CodeGen/AMDGPU/nested-loop-conditions.ll
    M llvm/test/CodeGen/AMDGPU/schedule-amdgpu-trackers.ll
    M llvm/test/CodeGen/AMDGPU/si-annotate-cf-noloop.ll
    M llvm/test/CodeGen/AMDGPU/si-spill-cf.ll
    M llvm/test/CodeGen/AMDGPU/skip-if-dead.ll
    M llvm/test/CodeGen/AMDGPU/soft-clause-exceeds-register-budget.ll
    M llvm/test/CodeGen/AMDGPU/splitkit-getsubrangeformask.ll
    M llvm/test/CodeGen/AMDGPU/undefined-subreg-liverange.ll
    M llvm/test/CodeGen/AMDGPU/uniform-cfg.ll
    M llvm/test/CodeGen/AMDGPU/vgpr-liverange-ir.ll
    M llvm/test/CodeGen/AMDGPU/wave32.ll
    M llvm/test/CodeGen/MIR/AMDGPU/custom-pseudo-source-values.ll
    M llvm/test/CodeGen/MIR/AMDGPU/machine-function-info-long-branch-reg-debug.ll
    M llvm/test/CodeGen/MIR/AMDGPU/machine-function-info-long-branch-reg.ll
    M llvm/test/CodeGen/MIR/AMDGPU/mircanon-memoperands.mir
    M llvm/test/CodeGen/MIR/AMDGPU/syncscopes.mir

  Log Message:
  -----------
  AMDGPU: Migrate more tests away from undef

andorbitset.ll is interesting since it directly depends on the
difference between poison and undef. Not sure it's useful to keep
the version using poison, I assume none of this code makes it to
codegen.

si-spill-cf.ll was also a nasty case, which I doubt has been reproducing
its original issue for a very long time. I had to reclaim an older version,
replace some of the poison uses, and run simplify-cfg. There's a very
slight change in the final CFG with this, but final the output is approximately
the same as it used to be.



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