[PATCH] D27413: Simplify gep (gep p, a), (b-a)
Davide Italiano via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Fri Dec 16 11:53:34 PST 2016
davide added inline comments.
================
Comment at: lib/Transforms/InstCombine/InstructionCombining.cpp:1566-1570
+ Value* Sum = SimplifyAddInst(GO1, SO1, false, false, DL, &TLI, &DT, &AC);
+ // Only do the combine when we are sure the cost after the
+ // merge is never more than that before the merge.
+ if (Sum == nullptr)
+ return nullptr;
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You can fold the `SimplifyAddInst` inside the if, no?
https://reviews.llvm.org/D27413
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