[PATCH] D96663: [InstCombine] Fold icmp (select c, const, arg), null if arg has nonnullattr

Juneyoung Lee via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue Feb 23 22:23:58 PST 2021


aqjune added inline comments.


================
Comment at: llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp:3281
         Transform =
             replacedSelectWithOperand(cast<SelectInst>(LHSI), &I, Op1 ? 2 : 1);
     }
----------------
To support example_negative, this needed to be relaxed; I chose a safer direction that would less cause possible performance issues.


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  https://reviews.llvm.org/D96663/new/

https://reviews.llvm.org/D96663



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