PCH support for TypesCompatibleExpr, ChooseExpr, and GNUNullExpr.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69242 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/PCHWriter.cpp b/lib/Frontend/PCHWriter.cpp
index 612eb23..dc5aabd 100644
--- a/lib/Frontend/PCHWriter.cpp
+++ b/lib/Frontend/PCHWriter.cpp
@@ -466,6 +466,9 @@
     void VisitCStyleCastExpr(CStyleCastExpr *E);
     void VisitExtVectorElementExpr(ExtVectorElementExpr *E);
     void VisitVAArgExpr(VAArgExpr *E);
+    void VisitTypesCompatibleExpr(TypesCompatibleExpr *E);
+    void VisitChooseExpr(ChooseExpr *E);
+    void VisitGNUNullExpr(GNUNullExpr *E);
   };
 }
 
@@ -655,6 +658,31 @@
   Code = pch::EXPR_VA_ARG;
 }
 
+void PCHStmtWriter::VisitTypesCompatibleExpr(TypesCompatibleExpr *E) {
+  VisitExpr(E);
+  Writer.AddTypeRef(E->getArgType1(), Record);
+  Writer.AddTypeRef(E->getArgType2(), Record);
+  Writer.AddSourceLocation(E->getBuiltinLoc(), Record);
+  Writer.AddSourceLocation(E->getRParenLoc(), Record);
+  Code = pch::EXPR_TYPES_COMPATIBLE;
+}
+
+void PCHStmtWriter::VisitChooseExpr(ChooseExpr *E) {
+  VisitExpr(E);
+  Writer.WriteSubExpr(E->getCond());
+  Writer.WriteSubExpr(E->getLHS());
+  Writer.WriteSubExpr(E->getRHS());
+  Writer.AddSourceLocation(E->getBuiltinLoc(), Record);
+  Writer.AddSourceLocation(E->getRParenLoc(), Record);
+  Code = pch::EXPR_CHOOSE;
+}
+
+void PCHStmtWriter::VisitGNUNullExpr(GNUNullExpr *E) {
+  VisitExpr(E);
+  Writer.AddSourceLocation(E->getTokenLocation(), Record);
+  Code = pch::EXPR_GNU_NULL;
+}
+
 //===----------------------------------------------------------------------===//
 // PCHWriter Implementation
 //===----------------------------------------------------------------------===//