[PATCH] D140965: [GlobalISel] Add G_BUILD_VECTOR[_TRUNC] to CSE

[Diana Picus via Phabricator via llvm-commits]

rovka created this revision.
rovka added reviewers: AMDGPU, paquette, aemerson.
Herald added subscribers: kosarev, kerbowa, hiraditya, jvesely.
Herald added a project: All.
rovka requested review of this revision.
Herald added a project: LLVM.

Add G_BUILD_VECTOR and G_BUILD_VECTOR_TRUNC to the list of opcodes in
`shouldCSEOpc`. This simplifies the code generated for vector splats.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D140965

Files:
  llvm/lib/CodeGen/GlobalISel/CSEInfo.cpp
  llvm/test/CodeGen/AArch64/GlobalISel/combine-udiv.ll
  llvm/test/CodeGen/AArch64/GlobalISel/combine-udiv.mir
  llvm/test/CodeGen/AArch64/GlobalISel/legalize-fp-arith.mir
  llvm/test/CodeGen/AArch64/GlobalISel/legalize-min-max.mir
  llvm/test/CodeGen/AArch64/GlobalISel/prelegalizer-combiner-mulo-zero.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-build-vector-splat.mir
  llvm/unittests/CodeGen/GlobalISel/CSETest.cpp

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