[PATCH] D112064: [GlobalISel] Combine (build_vector_trunc x, undef) -> (bitcast x)

[Jay Foad via Phabricator via llvm-commits]

foad added inline comments.


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Comment at: llvm/test/CodeGen/AMDGPU/GlobalISel/inst-select-build-vector-trunc.v2s16.mir:157
 
     ; GFX9-LABEL: name: test_build_vector_trunc_s_v2s16_s_s32_s_undef_s32
     ; GFX9: liveins: $sgpr0
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I could just remove all these "undef" test cases, since there is no longer any code in AMDGPUInstructionSelector that handles IMPLICIT_DEF specially.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D112064/new/

https://reviews.llvm.org/D112064