[PATCH] D111523: [AMDGPU] Don't emit 24 bit mul for > 32 bit result.

Abinav Puthan Purayil via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Sun Oct 10 23:23:32 PDT 2021


abinavpp created this revision.
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AMDGPU 24 bit mul yields a 32 bit result. We should not replace a > 32
bit wide mul with a 24 bit mul if we can't guarantee that the 24 bit mul
will fit in the original width.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D111523

Files:
  llvm/lib/Target/AMDGPU/AMDGPUCodeGenPrepare.cpp
  llvm/test/CodeGen/AMDGPU/amdgpu-codegenprepare-mul24.ll

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