[PATCH] D143963: AMDGPU: Override getNegatedExpression constant handling

[Jay Foad via Phabricator via llvm-commits]

foad added a comment.

`llc -march=amdgcn -mcpu=gfx1030` hangs on this test case:

  define float @f(float %arg) {
  bb:
    %i = fmul float %arg, 0.0
    %i1 = fsub float 0.0, %i
    ret float %i1
  }

Could you please fix or revert?


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D143963/new/

https://reviews.llvm.org/D143963