[OPENMP] Parsing and sema analysis for 'omp parallel sections' directive.

llvm-svn: 212516

1 files changed, 86 insertions, 0 deletions

diff --git a/clang/test/OpenMP/parallel_sections_messages.cpp b/clang/test/OpenMP/parallel_sections_messages.cpp
new file mode 100644
index 00000000000..f6ee2fc448d
--- /dev/null
+++ b/clang/test/OpenMP/parallel_sections_messages.cpp
@@ -0,0 +1,86 @@
+// RUN: %clang_cc1 -verify -fopenmp=libiomp5 -ferror-limit 100 -std=c++11 -o - %s
+
+void foo() {
+}
+
+#pragma omp parallel sections // expected-error {{unexpected OpenMP directive '#pragma omp parallel sections'}}
+
+int main(int argc, char **argv) {
+#pragma omp parallel sections {// expected-warning {{extra tokens at the end of '#pragma omp parallel sections' are ignored}}
+  {
+    foo();
+  }
+#pragma omp parallel sections( // expected-warning {{extra tokens at the end of '#pragma omp parallel sections' are ignored}}
+  {
+    foo();
+  }
+#pragma omp parallel sections[ // expected-warning {{extra tokens at the end of '#pragma omp parallel sections' are ignored}}
+  {
+    foo();
+  }
+#pragma omp parallel sections] // expected-warning {{extra tokens at the end of '#pragma omp parallel sections' are ignored}}
+  {
+    foo();
+  }
+#pragma omp parallel sections) // expected-warning {{extra tokens at the end of '#pragma omp parallel sections' are ignored}}
+  {
+    foo();
+  }
+#pragma omp parallel sections } // expected-warning {{extra tokens at the end of '#pragma omp parallel sections' are ignored}}
+  {
+    foo();
+  }
+// expected-warning@+1 {{extra tokens at the end of '#pragma omp parallel sections' are ignored}}
+#pragma omp parallel sections unknown()
+  {
+    foo();
+#pragma omp section
+  L1:
+    foo();
+  }
+#pragma omp parallel sections
+  {
+    ;
+  }
+#pragma omp parallel sections
+  {
+    goto L1; // expected-error {{use of undeclared label 'L1'}}
+  }
+
+  for (int i = 0; i < 10; ++i) {
+    switch (argc) {
+    case (0):
+#pragma omp parallel sections
+    {
+      foo();
+      break;    // expected-error {{'break' statement not in loop or switch statement}}
+      continue; // expected-error {{'continue' statement not in loop statement}}
+    }
+    default:
+      break;
+    }
+  }
+#pragma omp parallel sections default(none)
+  {
+    ++argc; // expected-error {{variable 'argc' must have explicitly specified data sharing attributes}}
+  }
+
+  goto L2; // expected-error {{use of undeclared label 'L2'}}
+#pragma omp parallel sections
+  {
+  L2:
+    foo();
+  }
+#pragma omp parallel sections
+  {
+    return 1; // expected-error {{cannot return from OpenMP region}}
+  }
+
+  [[]] // expected-error {{an attribute list cannot appear here}}
+#pragma omp parallel sections
+  {
+  }
+
+  return 0;
+}
+