[OpenACC] implement AST/Sema for 'routine' construct with argument

The 'routine' construct has two forms, one which takes the name of a
function that it applies to, and another where it implicitly figures it
out based on the next declaration. This patch implements the former with
the required restrictions on the name and the function-static-variables
as specified.

What has not been implemented is any clauses for this, any of the A.3.4
warnings, or the other form.

1 files changed, 12 insertions, 0 deletions

diff --git a/clang/lib/Serialization/ASTWriterDecl.cpp b/clang/lib/Serialization/ASTWriterDecl.cpp
index 88dd212..d455134 100644
--- a/clang/lib/Serialization/ASTWriterDecl.cpp
+++ b/clang/lib/Serialization/ASTWriterDecl.cpp
@@ -177,6 +177,7 @@ namespace clang {
     void VisitOMPCapturedExprDecl(OMPCapturedExprDecl *D);
 
     void VisitOpenACCDeclareDecl(OpenACCDeclareDecl *D);
+    void VisitOpenACCRoutineDecl(OpenACCRoutineDecl *D);
 
     /// Add an Objective-C type parameter list to the given record.
     void AddObjCTypeParamList(ObjCTypeParamList *typeParams) {
@@ -2281,6 +2282,17 @@ void ASTDeclWriter::VisitOpenACCDeclareDecl(OpenACCDeclareDecl *D) {
   Record.writeOpenACCClauseList(D->clauses());
   Code = serialization::DECL_OPENACC_DECLARE;
 }
+void ASTDeclWriter::VisitOpenACCRoutineDecl(OpenACCRoutineDecl *D) {
+  Record.writeUInt32(D->clauses().size());
+  VisitDecl(D);
+  Record.writeEnum(D->DirKind);
+  Record.AddSourceLocation(D->DirectiveLoc);
+  Record.AddSourceLocation(D->EndLoc);
+  Record.AddSourceRange(D->ParensLoc);
+  Record.AddStmt(D->FuncRef);
+  Record.writeOpenACCClauseList(D->clauses());
+  Code = serialization::DECL_OPENACC_ROUTINE;
+}
 
 //===----------------------------------------------------------------------===//
 // ASTWriter Implementation