[PATCH] D122013: [InstCombine] Fold abs of known negative operand when source is sub

[chenglin.bi via Phabricator via llvm-commits]

bcl5980 added inline comments.


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Comment at: llvm/test/Transforms/InstCombine/abs-intrinsic.ll:430
+define i32 @sub_abs(i32 %x, i32 %y) {
+; CHECK-LABEL: @sub_abs
+entry:
----------------
RKSimon wrote:
> where are the actual codegen checks?
; CHECK-NOT: llvm.abs.i32
If the code works, llvm.abs.i32 will be removed.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D122013/new/

https://reviews.llvm.org/D122013