[llvm] r305262 - Fix signed/unsigned comparison warning; NFC

[George Burgess IV via llvm-commits]

Author: gbiv
Date: Mon Jun 12 20:28:49 2017
New Revision: 305262

URL: http://llvm.org/viewvc/llvm-project?rev=305262&view=rev
Log:
Fix signed/unsigned comparison warning; NFC

Modified:
    llvm/trunk/lib/Transforms/Scalar/NewGVN.cpp

Modified: llvm/trunk/lib/Transforms/Scalar/NewGVN.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/NewGVN.cpp?rev=305262&r1=305261&r2=305262&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/NewGVN.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/NewGVN.cpp Mon Jun 12 20:28:49 2017
@@ -3561,7 +3561,7 @@ bool NewGVN::eliminateInstructions(Funct
     // TODO: It would be faster to use getNumIncomingBlocks() on a phi node in
     // the block and subtract the pred count, but it's more complicated.
     if (ReachablePredCount.lookup(BB) !=
-        std::distance(pred_begin(BB), pred_end(BB))) {
+        unsigned(std::distance(pred_begin(BB), pred_end(BB)))) {
       for (auto II = BB->begin(); isa<PHINode>(II); ++II) {
         auto &PHI = cast<PHINode>(*II);
         ReplaceUnreachablePHIArgs(PHI, BB);