PCH support for ParenExpr


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69106 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/PCHReader.cpp b/lib/Frontend/PCHReader.cpp
index 057e66a..056c5d5 100644
--- a/lib/Frontend/PCHReader.cpp
+++ b/lib/Frontend/PCHReader.cpp
@@ -237,6 +237,7 @@
     unsigned VisitIntegerLiteral(IntegerLiteral *E);
     unsigned VisitFloatingLiteral(FloatingLiteral *E);
     unsigned VisitCharacterLiteral(CharacterLiteral *E);
+    unsigned VisitParenExpr(ParenExpr *E);
     unsigned VisitCastExpr(CastExpr *E);
     unsigned VisitImplicitCastExpr(ImplicitCastExpr *E);
   };
@@ -286,6 +287,14 @@
   return 0;
 }
 
+unsigned PCHStmtReader::VisitParenExpr(ParenExpr *E) {
+  VisitExpr(E);
+  E->setLParen(SourceLocation::getFromRawEncoding(Record[Idx++]));
+  E->setRParen(SourceLocation::getFromRawEncoding(Record[Idx++]));
+  E->setSubExpr(ExprStack.back());
+  return 1;
+}
+
 unsigned PCHStmtReader::VisitCastExpr(CastExpr *E) {
   VisitExpr(E);
   E->setSubExpr(ExprStack.back());
@@ -1605,6 +1614,10 @@
       E = new (Context) CharacterLiteral(Empty);
       break;
 
+    case pch::EXPR_PAREN:
+      E = new (Context) ParenExpr(Empty);
+      break;
+
     case pch::EXPR_IMPLICIT_CAST:
       E = new (Context) ImplicitCastExpr(Empty);
       break;
diff --git a/lib/Frontend/PCHWriter.cpp b/lib/Frontend/PCHWriter.cpp
index 4ca3c8d..ca76243 100644
--- a/lib/Frontend/PCHWriter.cpp
+++ b/lib/Frontend/PCHWriter.cpp
@@ -449,6 +449,7 @@
     void VisitIntegerLiteral(IntegerLiteral *E);
     void VisitFloatingLiteral(FloatingLiteral *E);
     void VisitCharacterLiteral(CharacterLiteral *E);
+    void VisitParenExpr(ParenExpr *E);
     void VisitCastExpr(CastExpr *E);
     void VisitImplicitCastExpr(ImplicitCastExpr *E);
   };
@@ -497,6 +498,14 @@
   Code = pch::EXPR_CHARACTER_LITERAL;
 }
 
+void PCHStmtWriter::VisitParenExpr(ParenExpr *E) {
+  VisitExpr(E);
+  Writer.AddSourceLocation(E->getLParen(), Record);
+  Writer.AddSourceLocation(E->getRParen(), Record);
+  Writer.WriteSubExpr(E->getSubExpr());
+  Code = pch::EXPR_PAREN;
+}
+
 void PCHStmtWriter::VisitCastExpr(CastExpr *E) {
   VisitExpr(E);
   Writer.WriteSubExpr(E->getSubExpr());