[PATCH] D104049: [AMDGPU] [CodeGen] Fold negate llvm.amdgcn.class into test mask

Fri Jun 18 03:03:59 PDT 2021

foad added a comment.

> I am not too sure what is causing the test CodeGen/AMDGPU/amdgpu-codegenprepare-i16-to-i32.ll to fail. There is no amdgcn class intrinsic being used anywhere in this test case so there should not be any transformation happening.

Your visitXor function overrides the handling of 16-bit xors which were previously handled by visitBinaryOperator.

For the cases you can't handle, instead of `return false` you need something like `return visitBinaryOperator(I)`.

Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D104049/new/

https://reviews.llvm.org/D104049