[OpenMP] Parse+Sema for '#pragma omp declare target' syntax version 4.5

Support OpenMP version 4.5 syntax for #pragma omp declare target.

Syntax:
  #pragma omp declare target (extended-list) new-line
or
  #pragma omp declare target clause[ [,] clause ... ] new-line

Where clause is one of the following:
  to(extended-list)
  link(list)

Differential Revision: http://reviews.llvm.org/D20011

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@268925 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 13 insertions, 1 deletions

diff --git a/test/OpenMP/declare_target_messages.cpp b/test/OpenMP/declare_target_messages.cpp
index 50f0ed98fc..b858d53c1e 100644
--- a/test/OpenMP/declare_target_messages.cpp
+++ b/test/OpenMP/declare_target_messages.cpp
@@ -4,9 +4,15 @@
 
 int a, b; // expected-warning {{declaration is not declared in any declare target region}}
 __thread int t; // expected-note {{defined as threadprivate or thread local}}
-#pragma omp declare target private(a) // expected-warning {{extra tokens at the end of '#pragma omp declare target' are ignored}}
+
+#pragma omp declare target . // expected-error {{expected '(' after 'declare target'}}
+
+#pragma omp declare target
 void f();
 #pragma omp end declare target shared(a) // expected-warning {{extra tokens at the end of '#pragma omp end declare target' are ignored}}
+
+#pragma omp declare target map(a) // expected-error {{unexpected 'map' clause, only 'to' or 'link' clauses expected}}
+
 void c(); // expected-warning {{declaration is not declared in any declare target region}}
 
 extern int b;
@@ -86,4 +92,10 @@ namespace {
 } //  expected-error {{expected '#pragma omp end declare target'}}
 #pragma omp end declare target // expected-error {{unexpected OpenMP directive '#pragma omp end declare target'}}
 
+#pragma omp declare target link(S) // expected-error {{'S' used in declare target directive is not a variable or a function name}}
+
+#pragma omp declare target (x, x) // expected-error {{'x' appears multiple times in clauses on the same declare target directive}}
+#pragma omp declare target to(x) to(x) // expected-error {{'x' appears multiple times in clauses on the same declare target directive}}
+#pragma omp declare target link(x) // expected-error {{'x' must not appear in both clauses 'to' and 'link'}}
+
 #pragma omp declare target // expected-error {{expected '#pragma omp end declare target'}} expected-note {{to match this '#pragma omp declare target'}}