[PATCH] D28256: AMDGPU: Skip fneg/select combine if it can fold into other

Nicolai Hähnle via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Wed Jan 11 14:15:28 PST 2017


nhaehnle accepted this revision.
nhaehnle added a reviewer: nhaehnle.
nhaehnle added a comment.
This revision is now accepted and ready to land.

One minor comment, LGTM otherwise.



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Comment at: lib/Target/AMDGPU/AMDGPUISelLowering.cpp:2763
+    // Careful: if the neg can be folded up, don't try to pull it back down.
+    bool ShouldFoldNeg = true;
 
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Just ShouldFold, since it also refers to the fabs case?


https://reviews.llvm.org/D28256





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