[PATCH] D156499: [InstCombine] Fold abs of known sign operand when source is sub

[Allen zhong via Phabricator via llvm-commits]

Allen marked 2 inline comments as done.
Allen added inline comments.


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Comment at: llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp:1521
 
+    // abs(x-y) --> y-x where x <= y
+    Value *Y;
----------------
goldstein.w.n wrote:
> You also do `abs(x-y) --> x - y where x > y`.
Apply your comment, thanks


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  https://reviews.llvm.org/D156499/new/

https://reviews.llvm.org/D156499