Eliminate an unnecessary cast.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112055 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Bitcode/Writer/ValueEnumerator.cpp b/lib/Bitcode/Writer/ValueEnumerator.cpp
index b0964d4..587eb5f 100644
--- a/lib/Bitcode/Writer/ValueEnumerator.cpp
+++ b/lib/Bitcode/Writer/ValueEnumerator.cpp
@@ -387,7 +387,7 @@
       // blockaddress.
       if (isa<BasicBlock>(Op)) continue;
       
-      EnumerateOperandType(cast<Constant>(Op));
+      EnumerateOperandType(Op);
     }
 
     if (const MDNode *N = dyn_cast<MDNode>(V)) {