Add 'Indirect' LocInfo class and use to pass __m128 on win64. Also minore fixes here and there (mostly __m64).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77964 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/CallingConvEmitter.cpp b/utils/TableGen/CallingConvEmitter.cpp
index a14be0b..5879c41 100644
--- a/utils/TableGen/CallingConvEmitter.cpp
+++ b/utils/TableGen/CallingConvEmitter.cpp
@@ -186,6 +186,10 @@
       Record *DestTy = Action->getValueAsDef("DestTy");
       O << IndentStr << "LocVT = " << getEnumName(getValueType(DestTy)) <<";\n";
       O << IndentStr << "LocInfo = CCValAssign::BCvt;\n";
+    } else if (Action->isSubClassOf("CCPassIndirect")) {
+      Record *DestTy = Action->getValueAsDef("DestTy");
+      O << IndentStr << "LocVT = " << getEnumName(getValueType(DestTy)) <<";\n";
+      O << IndentStr << "LocInfo = CCValAssign::Indirect;\n";
     } else if (Action->isSubClassOf("CCPassByVal")) {
       int Size = Action->getValueAsInt("Size");
       int Align = Action->getValueAsInt("Align");