1 files changed, 2 insertions, 2 deletions
diff --git a/lib/IR/ConstantFold.cpp b/lib/IR/ConstantFold.cpp
index bf93d4f..da9762f 100644
--- a/lib/IR/ConstantFold.cpp
+++ b/lib/IR/ConstantFold.cpp
@@ -1857,9 +1857,9 @@ Constant *llvm::ConstantFoldCompareInstruction(unsigned short pred,
         if (CE1Inverse == CE1Op0) {
           // Check whether we can safely truncate the right hand side.
           Constant *C2Inverse = ConstantExpr::getTrunc(C2, CE1Op0->getType());
-          if (ConstantExpr::getZExt(C2Inverse, C2->getType()) == C2) {
+          if (ConstantExpr::getCast(CE1->getOpcode(), C2Inverse,
+                                    C2->getType()) == C2)
             return ConstantExpr::getICmp(pred, CE1Inverse, C2Inverse);
-          }
         }
       }
     }