start of the 64bit safety cleanup


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25764 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/DAGISelEmitter.cpp b/utils/TableGen/DAGISelEmitter.cpp
index 464fa0a..5643065 100644
--- a/utils/TableGen/DAGISelEmitter.cpp
+++ b/utils/TableGen/DAGISelEmitter.cpp
@@ -2079,7 +2079,7 @@
         case MVT::i32: Code = "unsigned Tmp"; break;
         case MVT::i64: Code = "uint64_t Tmp"; break;
         }
-        emitCode(Code + utostr(ResNo) + "C = (unsigned)cast<ConstantSDNode>(" +
+        emitCode(Code + utostr(ResNo) + "C = (uint64_t)cast<ConstantSDNode>(" +
                  Val + ")->getValue();");
         emitCode("SDOperand Tmp" + utostr(ResNo) + 
                  " = CurDAG->getTargetConstant(Tmp" + utostr(ResNo) +