[PATCH] D88028: [AMDGPU] More codegen patterns for v2i16/v2f16 build_vector

[Jay Foad via Phabricator via llvm-commits]

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It's simpler to do this at codegen time than to do ad-hoc constant
folding of machine instructions in SIFoldOperands.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D88028

Files:
  llvm/lib/Target/AMDGPU/SIFoldOperands.cpp
  llvm/lib/Target/AMDGPU/SIInstructions.td
  llvm/test/CodeGen/AMDGPU/constant-fold-imm-immreg.mir
  llvm/test/CodeGen/AMDGPU/fcanonicalize.f16.ll

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