[PATCH] D136319: [GISel] Rework trunc/shl combine in a generic trunc/shift combine

[Pierre van Houtryve via Phabricator via llvm-commits]

Pierre-vh updated this revision to Diff 481177.
Pierre-vh added a comment.

@arsenm I accidentally forgot to leave in the special case to not fold in the presence of G_STORE users. That's why some aarch64 test was failing, see my previous comments.
Is it still good to land even with the special-case left in?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D136319/new/

https://reviews.llvm.org/D136319

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/combine-trunc-shift.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/combine-trunc-shl.mir

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