[OpenMP] Parsing + sema for defaultmap clause.

Summary:
This patch adds parsing + sema for the defaultmap clause associated with the target directive (among others).

Reviewers: ABataev

Differential Revision: http://reviews.llvm.org/D16527

llvm-svn: 258817
diff --git a/clang/test/OpenMP/target_ast_print.cpp b/clang/test/OpenMP/target_ast_print.cpp
index bd91839..e093e29 100644
--- a/clang/test/OpenMP/target_ast_print.cpp
+++ b/clang/test/OpenMP/target_ast_print.cpp
@@ -29,6 +29,8 @@
   foo();
 #pragma omp target depend(in : argc, argv[i:argc], a[:])
   foo();
+#pragma omp target defaultmap(tofrom: scalar)
+  foo();
   return 0;
 }
 
@@ -52,6 +54,8 @@
 // CHECK-NEXT: foo()
 // CHECK-NEXT: #pragma omp target depend(in : argc,argv[i:argc],a[:])
 // CHECK-NEXT: foo()
+// CHECK-NEXT: #pragma omp target defaultmap(tofrom: scalar)
+// CHECK-NEXT: foo()
 // CHECK: template <typename T = char, int C = 1> char tmain(char argc, char *argv) {
 // CHECK-NEXT: char i, j, a[20]
 // CHECK-NEXT: #pragma omp target
@@ -72,6 +76,8 @@
 // CHECK-NEXT: foo()
 // CHECK-NEXT: #pragma omp target depend(in : argc,argv[i:argc],a[:])
 // CHECK-NEXT: foo()
+// CHECK-NEXT: #pragma omp target defaultmap(tofrom: scalar)
+// CHECK-NEXT: foo()
 // CHECK: template <typename T, int C> T tmain(T argc, T *argv) {
 // CHECK-NEXT: T i, j, a[20]
 // CHECK-NEXT: #pragma omp target
@@ -92,6 +98,8 @@
 // CHECK-NEXT: foo()
 // CHECK-NEXT: #pragma omp target depend(in : argc,argv[i:argc],a[:])
 // CHECK-NEXT: foo()
+// CHECK-NEXT: #pragma omp target defaultmap(tofrom: scalar)
+// CHECK-NEXT: foo()
 
 // CHECK-LABEL: int main(int argc, char **argv) {
 int main (int argc, char **argv) {
@@ -141,6 +149,11 @@
   foo();
 // CHECK-NEXT: foo();
 
+#pragma omp target defaultmap(tofrom: scalar)
+// CHECK-NEXT: #pragma omp target defaultmap(tofrom: scalar)
+  foo();
+// CHECK-NEXT: foo();
+
   return tmain<int, 5>(argc, &argc) + tmain<char, 1>(argv[0][0], argv[0]);
 }
 
diff --git a/clang/test/OpenMP/target_defaultmap_messages.cpp b/clang/test/OpenMP/target_defaultmap_messages.cpp
new file mode 100644
index 0000000..59348d4
--- /dev/null
+++ b/clang/test/OpenMP/target_defaultmap_messages.cpp
@@ -0,0 +1,56 @@
+// RUN: %clang_cc1 -verify -fopenmp %s
+
+void foo() {
+}
+
+template <class T, typename S, int N, int ST>
+T tmain(T argc, S **argv) {
+  #pragma omp target defaultmap // expected-error {{expected '(' after 'defaultmap'}}
+  foo();
+  #pragma omp target defaultmap ( // expected-error {{expected 'tofrom' in OpenMP clause 'defaultmap'}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target defaultmap () // expected-error {{expected 'tofrom' in OpenMP clause 'defaultmap'}}
+  foo();
+  #pragma omp target defaultmap (tofrom // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-warning {{missing ':' after defaultmap modifier - ignoring}} expected-error {{expected 'scalar' in OpenMP clause 'defaultmap'}}
+  foo();
+  #pragma omp target defaultmap (tofrom: // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{expected 'scalar' in OpenMP clause 'defaultmap'}}
+  foo();
+  #pragma omp target defaultmap (tofrom) // expected-warning {{missing ':' after defaultmap modifier - ignoring}} expected-error {{expected 'scalar' in OpenMP clause 'defaultmap'}}
+  foo();
+  #pragma omp target defaultmap (tofrom scalar) // expected-warning {{missing ':' after defaultmap modifier - ignoring}}
+  foo();
+  #pragma omp target defaultmap (tofrom, // expected-error {{expected ')'}} expected-error {{expected 'scalar' in OpenMP clause 'defaultmap'}} expected-warning {{missing ':' after defaultmap modifier - ignoring}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target defaultmap (scalar: // expected-error {{expected ')'}} expected-error {{expected 'tofrom' in OpenMP clause 'defaultmap'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target defaultmap (tofrom, scalar // expected-error {{expected ')'}} expected-warning {{missing ':' after defaultmap modifier - ignoring}} expected-error {{expected 'scalar' in OpenMP clause 'defaultmap'}} expected-note {{to match this '('}}
+  foo();
+
+  return argc;
+}
+
+int main(int argc, char **argv) {
+  #pragma omp target defaultmap // expected-error {{expected '(' after 'defaultmap'}}
+  foo();
+  #pragma omp target defaultmap ( // expected-error {{expected 'tofrom' in OpenMP clause 'defaultmap'}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target defaultmap () // expected-error {{expected 'tofrom' in OpenMP clause 'defaultmap'}}
+  foo();
+  #pragma omp target defaultmap (tofrom // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-warning {{missing ':' after defaultmap modifier - ignoring}} expected-error {{expected 'scalar' in OpenMP clause 'defaultmap'}}
+  foo();
+  #pragma omp target defaultmap (tofrom: // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{expected 'scalar' in OpenMP clause 'defaultmap'}}
+  foo();
+  #pragma omp target defaultmap (tofrom) // expected-warning {{missing ':' after defaultmap modifier - ignoring}} expected-error {{expected 'scalar' in OpenMP clause 'defaultmap'}}
+  foo();
+  #pragma omp target defaultmap (tofrom scalar) // expected-warning {{missing ':' after defaultmap modifier - ignoring}}
+  foo();
+  #pragma omp target defaultmap (tofrom, // expected-error {{expected ')'}} expected-error {{expected 'scalar' in OpenMP clause 'defaultmap'}} expected-warning {{missing ':' after defaultmap modifier - ignoring}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target defaultmap (scalar: // expected-error {{expected ')'}} expected-error {{expected 'tofrom' in OpenMP clause 'defaultmap'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target defaultmap (tofrom, scalar // expected-error {{expected ')'}} expected-warning {{missing ':' after defaultmap modifier - ignoring}} expected-error {{expected 'scalar' in OpenMP clause 'defaultmap'}} expected-note {{to match this '('}}
+  foo();
+
+  return tmain<int, char, 1, 0>(argc, argv);
+}
+