[ASTTypeTraits][ASTMatchers][OpenMP] OMPClause handling

Summary:
`OMPClause` is the base class, it is not descendant from **any**
other class, therefore for it to work with e.g.
`VariadicDynCastAllOfMatcher<>`, it needs to be handled here.

Reviewers: sbenza, bkramer, pcc, klimek, hokein, gribozavr, aaron.ballman, george.karpenkov

Reviewed By: gribozavr, aaron.ballman

Subscribers: guansong, jdoerfert, alexfh, ABataev, cfe-commits

Tags: #openmp, #clang

Differential Revision: https://reviews.llvm.org/D57112

llvm-svn: 356675

1 files changed, 38 insertions, 0 deletions

diff --git a/clang/unittests/ASTMatchers/ASTMatchersNodeTest.cpp b/clang/unittests/ASTMatchers/ASTMatchersNodeTest.cpp
index 4bce409cab4..16e682aeff1 100644
--- a/clang/unittests/ASTMatchers/ASTMatchersNodeTest.cpp
+++ b/clang/unittests/ASTMatchers/ASTMatchersNodeTest.cpp
@@ -1789,5 +1789,43 @@ void x() {
   EXPECT_TRUE(notMatchesWithOpenMP(Source2, Matcher));
 }
 
+TEST(OMPDefaultClause, Matches) {
+  auto Matcher = ompExecutableDirective(hasAnyClause(ompDefaultClause()));
+
+  const std::string Source0 = R"(
+void x() {
+;
+})";
+  EXPECT_TRUE(notMatchesWithOpenMP(Source0, Matcher));
+
+  const std::string Source1 = R"(
+void x() {
+#pragma omp parallel
+;
+})";
+  EXPECT_TRUE(notMatchesWithOpenMP(Source1, Matcher));
+
+  const std::string Source2 = R"(
+void x() {
+#pragma omp parallel default(none)
+;
+})";
+  EXPECT_TRUE(matchesWithOpenMP(Source2, Matcher));
+
+  const std::string Source3 = R"(
+void x() {
+#pragma omp parallel default(shared)
+;
+})";
+  EXPECT_TRUE(matchesWithOpenMP(Source3, Matcher));
+
+  const std::string Source4 = R"(
+void x(int x) {
+#pragma omp parallel num_threads(x)
+;
+})";
+  EXPECT_TRUE(notMatchesWithOpenMP(Source4, Matcher));
+}
+
 } // namespace ast_matchers
 } // namespace clang