[ASTMatchers][OpenMP] Add base ompExecutableDirective() matcher.

Summary:
A simple matcher for `OMPExecutableDirective` Stmt type.
Split off from D57113.

Reviewers: gribozavr, aaron.ballman, JonasToth, george.karpenkov

Reviewed By: gribozavr, aaron.ballman

Subscribers: guansong, jdoerfert, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D59453

llvm-svn: 356674

1 files changed, 24 insertions, 0 deletions

diff --git a/clang/unittests/ASTMatchers/ASTMatchersNodeTest.cpp b/clang/unittests/ASTMatchers/ASTMatchersNodeTest.cpp
index 3f9981cd6db..4bce409cab4 100644
--- a/clang/unittests/ASTMatchers/ASTMatchersNodeTest.cpp
+++ b/clang/unittests/ASTMatchers/ASTMatchersNodeTest.cpp
@@ -1765,5 +1765,29 @@ TEST(ObjCAutoreleaseMatcher, AutoreleasePool) {
   EXPECT_FALSE(matchesObjC(ObjCStringNoPool, autoreleasePoolStmt()));
 }
 
+TEST(OMPExecutableDirective, Matches) {
+  auto Matcher = stmt(ompExecutableDirective());
+
+  const std::string Source0 = R"(
+void x() {
+#pragma omp parallel
+;
+})";
+  EXPECT_TRUE(matchesWithOpenMP(Source0, Matcher));
+
+  const std::string Source1 = R"(
+void x() {
+#pragma omp taskyield
+;
+})";
+  EXPECT_TRUE(matchesWithOpenMP(Source1, Matcher));
+
+  const std::string Source2 = R"(
+void x() {
+;
+})";
+  EXPECT_TRUE(notMatchesWithOpenMP(Source2, Matcher));
+}
+
 } // namespace ast_matchers
 } // namespace clang