[OPENMP] Initial parsing and sema analysis for 'single' directive.

llvm-svn: 211774
diff --git a/clang/test/OpenMP/single_ast_print.cpp b/clang/test/OpenMP/single_ast_print.cpp
new file mode 100644
index 0000000..eaae114
--- /dev/null
+++ b/clang/test/OpenMP/single_ast_print.cpp
@@ -0,0 +1,38 @@
+// RUN: %clang_cc1 -verify -fopenmp=libiomp5 -ast-print %s | FileCheck %s
+// RUN: %clang_cc1 -fopenmp=libiomp5 -x c++ -std=c++11 -emit-pch -o %t %s
+// RUN: %clang_cc1 -fopenmp=libiomp5 -std=c++11 -include-pch %t -fsyntax-only -verify %s -ast-print | FileCheck %s
+// expected-no-diagnostics
+
+#ifndef HEADER
+#define HEADER
+
+void foo() {}
+
+template <class T, int N>
+T tmain(T argc) {
+  T b = argc, c, d, e, f, g;
+  static T a;
+// CHECK: static T a;
+#pragma omp parallel
+#pragma omp single private(argc, b), firstprivate(c, d), nowait
+  foo();
+  // CHECK-NEXT: #pragma omp parallel
+  // CHECK-NEXT: #pragma omp single private(argc,b) firstprivate(c,d) nowait
+  // CHECK-NEXT: foo();
+  return T();
+}
+
+int main(int argc, char **argv) {
+  int b = argc, c, d, e, f, g;
+  static int a;
+// CHECK: static int a;
+#pragma omp parallel
+#pragma omp single private(argc, b), firstprivate(argv, c), nowait
+  foo();
+  // CHECK-NEXT: #pragma omp parallel
+  // CHECK-NEXT: #pragma omp single private(argc,b) firstprivate(argv,c) nowait
+  // CHECK-NEXT: foo();
+  return (tmain<int, 5>(argc) + tmain<char, 1>(argv[0][0]));
+}
+
+#endif