[PATCH] D151122: [GlobalISel] Check if ShiftAmt is greater then size of operand

[Acim Maravic via Phabricator via llvm-commits]

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Acim-Maravic added reviewers: Petar.Avramovic, matejam, mbrkusanin, foad, arsenm.
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matchCombineShlOfExtend did not check if the size of new shift would be
wider then a size of operand. Current condition did not work if the value
being shifted was zero.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D151122

Files:
  llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
  llvm/test/CodeGen/AArch64/GlobalISel/prelegalizer-combiner-divrem-insertpt-crash.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/combine-shl-from-extend-narrow.postlegal.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/combine-shl-from-extend-narrow.prelegal.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/sext_inreg.ll

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