[PATCH] D135146: [GISel] Add redundant bitcast folding combine

[Pierre van Houtryve via Phabricator via llvm-commits]

Pierre-vh created this revision.
Pierre-vh added a reviewer: arsenm.
Herald added subscribers: kosarev, kerbowa, hiraditya, jvesely.
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Simply folds away bitcasts that cancel each other.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D135146

Files:
  llvm/include/llvm/CodeGen/GlobalISel/CombinerHelper.h
  llvm/include/llvm/Target/GlobalISel/Combine.td
  llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
  llvm/test/CodeGen/AMDGPU/GlobalISel/prelegalizer-combiner-redundant-bitcast.mir

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