Cleanup a few magic numbers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163263 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index d81c376..31d633c 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -6085,7 +6085,7 @@
   if (IA->isAlignStack())
     ExtraInfo |= InlineAsm::Extra_IsAlignStack;
   // Set the asm dialect.
-  ExtraInfo |= IA->getDialect() << 2;
+  ExtraInfo |= IA->getDialect() * InlineAsm::Extra_AsmDialect;
   AsmNodeOperands.push_back(DAG.getTargetConstant(ExtraInfo,
                                                   TLI.getPointerTy()));