[PATCH] D36922: [LibCallSimplifier] try harder to fold memcmp with constant arguments

[Eli Friedman via Phabricator via llvm-commits]

efriedma added inline comments.


================
Comment at: llvm/trunk/lib/Transforms/Utils/SimplifyLibCalls.cpp:778
           IntType->getPointerTo(LHS->getType()->getPointerAddressSpace());
+      LHSV = B.CreateLoad(B.CreateBitCast(LHS, LHSPtrTy), "lhsv");
+    }
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Are you sure this is right?  It looks like it you'll create a dead load if the LHS is aligned, but the RHS isn't (and therefore drive instcombine into an infinite loop).


Repository:
  rL LLVM

https://reviews.llvm.org/D36922