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

llvm-svn: 212516

1 files changed, 63 insertions, 0 deletions

diff --git a/clang/test/OpenMP/parallel_sections_num_threads_messages.cpp b/clang/test/OpenMP/parallel_sections_num_threads_messages.cpp
new file mode 100644
index 00000000000..927e8d76d54
--- /dev/null
+++ b/clang/test/OpenMP/parallel_sections_num_threads_messages.cpp
@@ -0,0 +1,63 @@
+// RUN: %clang_cc1 -verify -fopenmp=libiomp5 -ferror-limit 100 %s
+
+void foo() {
+}
+
+bool foobool(int argc) {
+  return argc;
+}
+
+struct S1; // expected-note {{declared here}}
+
+template <class T, typename S, int N> // expected-note {{declared here}}
+T tmain(T argc, S **argv) {
+  #pragma omp parallel sections num_threads // expected-error {{expected '(' after 'num_threads'}}
+  {foo();}
+  #pragma omp parallel sections num_threads ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {foo();}
+  #pragma omp parallel sections num_threads () // expected-error {{expected expression}}
+  {foo();}
+  #pragma omp parallel sections num_threads (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {foo();}
+  #pragma omp parallel sections num_threads (argc)) // expected-warning {{extra tokens at the end of '#pragma omp parallel sections' are ignored}}
+  {foo();}
+  #pragma omp parallel sections num_threads ((argc > 0) ? argv[1] : argv[2]) // expected-error 2 {{expression must have integral or unscoped enumeration type, not 'char *'}}
+  {foo();}
+  #pragma omp parallel sections num_threads (foobool(argc)), num_threads (true), num_threads (-5) // expected-error 2 {{directive '#pragma omp parallel sections' cannot contain more than one 'num_threads' clause}} expected-error {{argument to 'num_threads' clause must be a positive integer value}}
+  {foo();}
+  #pragma omp parallel sections num_threads (S) // expected-error {{'S' does not refer to a value}}
+  {foo();}
+  #pragma omp parallel sections num_threads (argv[1]=2) // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error 2 {{expression must have integral or unscoped enumeration type, not 'char *'}}
+  {foo();}
+  #pragma omp parallel sections num_threads (argc)
+  {foo();}
+  #pragma omp parallel sections num_threads (N) // expected-error {{argument to 'num_threads' clause must be a positive integer value}}
+  {foo();}
+
+  return argc;
+}
+
+int main(int argc, char **argv) {
+  #pragma omp parallel sections num_threads // expected-error {{expected '(' after 'num_threads'}}
+  {foo();}
+  #pragma omp parallel sections num_threads ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {foo();}
+  #pragma omp parallel sections num_threads () // expected-error {{expected expression}}
+  {foo();}
+  #pragma omp parallel sections num_threads (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
+  {foo();}
+  #pragma omp parallel sections num_threads (argc)) // expected-warning {{extra tokens at the end of '#pragma omp parallel sections' are ignored}}
+  {foo();}
+  #pragma omp parallel sections num_threads (argc > 0 ? argv[1] : argv[2]) // expected-error {{integral }}
+  {foo();}
+  #pragma omp parallel sections num_threads (foobool(argc)), num_threads (true), num_threads (-5) // expected-error 2 {{directive '#pragma omp parallel sections' cannot contain more than one 'num_threads' clause}} expected-error {{argument to 'num_threads' clause must be a positive integer value}}
+  {foo();}
+  #pragma omp parallel sections num_threads (S1) // expected-error {{'S1' does not refer to a value}}
+  {foo();}
+  #pragma omp parallel sections num_threads (argv[1]=2) // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{expression must have integral or unscoped enumeration type, not 'char *'}}
+  {foo();}
+  #pragma omp parallel sections num_threads (num_threads(tmain<int, char, -1>(argc, argv) // expected-error 2 {{expected ')'}} expected-note 2 {{to match this '('}} expected-note {{in instantiation of function template specialization 'tmain<int, char, -1>' requested here}}
+  {foo();}
+
+  return tmain<int, char, 3>(argc, argv); // expected-note {{in instantiation of function template specialization 'tmain<int, char, 3>' requested here}}
+}