[OpenMP] Parsing + sema for target parallel directive.

Summary:
This patch adds parsing + sema for the target parallel directive and its clauses along with testcases.

Reviewers: ABataev

Differential Revision: http://reviews.llvm.org/D16553

Rebased to current trunk and updated test cases.

llvm-svn: 258832

1 files changed, 21 insertions, 0 deletions

diff --git a/clang/test/OpenMP/target_parallel_default_messages.cpp b/clang/test/OpenMP/target_parallel_default_messages.cpp
new file mode 100644
index 00000000000..7d2990b780a
--- /dev/null
+++ b/clang/test/OpenMP/target_parallel_default_messages.cpp
@@ -0,0 +1,21 @@
+// RUN: %clang_cc1 -verify -fopenmp -ferror-limit 100 -o - %s
+
+void foo();
+
+int main(int argc, char **argv) {
+  #pragma omp target parallel default // expected-error {{expected '(' after 'default'}}
+  #pragma omp target parallel default ( // expected-error {{expected 'none' or 'shared' in OpenMP clause 'default'}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  #pragma omp target parallel default () // expected-error {{expected 'none' or 'shared' in OpenMP clause 'default'}}
+  #pragma omp target parallel default (none // expected-error {{expected ')'}} expected-note {{to match this '('}}
+  #pragma omp target parallel default (shared), default(shared) // expected-error {{directive '#pragma omp target parallel' cannot contain more than one 'default' clause}}
+  #pragma omp target parallel default (x) // expected-error {{expected 'none' or 'shared' in OpenMP clause 'default'}}
+  foo();
+
+  #pragma omp target parallel default(none)
+  ++argc; // expected-error {{variable 'argc' must have explicitly specified data sharing attributes}}
+
+  #pragma omp target parallel default(none)
+  #pragma omp target parallel default(shared)
+  ++argc;
+  return 0;
+}