[OpenMP] Sema for depend clause on target directive.

[arpith-jacob]

Summary

Accept depend clause on target directive in sema and add test cases.

cfe/trunk/include/clang/Basic/OpenMPKinds.def

 
 // Clauses allowed for OpenMP directive 'target'.
 // TODO More clauses for 'target' directive.
 OPENMP_TARGET_CLAUSE(if)
 OPENMP_TARGET_CLAUSE(device)
 OPENMP_TARGET_CLAUSE(map)
 OPENMP_TARGET_CLAUSE(private)
 OPENMP_TARGET_CLAUSE(nowait)
+OPENMP_TARGET_CLAUSE(depend)
 
 // Clauses allowed for OpenMP directive 'target data'.
 // TODO More clauses for 'target data' directive.
 OPENMP_TARGET_DATA_CLAUSE(if)
 OPENMP_TARGET_DATA_CLAUSE(device)
 OPENMP_TARGET_DATA_CLAUSE(map)
 
 // Clauses allowed for OpenMP directive 'target enter data'.

cfe/trunk/test/OpenMP/target_ast_print.cpp

 #pragma omp target map(a[0:10], i)
   foo();
 #pragma omp target map(to: i) map(from: j)
   foo();
 #pragma omp target map(always,alloc: i)
   foo();
 #pragma omp target nowait
   foo();
+#pragma omp target depend(in : argc, argv[i:argc], a[:])
+  foo();
   return 0;
 }
 
 // CHECK: template <typename T = int, int C = 5> int tmain(int argc, int *argv) {
 // CHECK-NEXT: int i, j, a[20]
 // CHECK-NEXT: #pragma omp target
 // CHECK-NEXT: foo();
 // CHECK-NEXT: #pragma omp target if(target: argc > 0)
 // CHECK-NEXT: foo()
 // CHECK-NEXT: #pragma omp target if(5)
 // CHECK-NEXT: foo()
 // CHECK-NEXT: #pragma omp target map(tofrom: i)
 // CHECK-NEXT: foo()
 // CHECK-NEXT: #pragma omp target map(tofrom: a[0:10],i)
 // CHECK-NEXT: foo()
 // CHECK-NEXT: #pragma omp target map(to: i) map(from: j)
 // CHECK-NEXT: foo()
 // CHECK-NEXT: #pragma omp target map(always,alloc: i)
 // CHECK-NEXT: foo()
 // CHECK-NEXT: #pragma omp target nowait
 // CHECK-NEXT: foo()
+// CHECK-NEXT: #pragma omp target depend(in : argc,argv[i:argc],a[:])
+// 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
 // CHECK-NEXT: foo();
 // CHECK-NEXT: #pragma omp target if(target: argc > 0)
 // CHECK-NEXT: foo()
 // CHECK-NEXT: #pragma omp target if(1)
 // CHECK-NEXT: foo()
 // CHECK-NEXT: #pragma omp target map(tofrom: i)
 // CHECK-NEXT: foo()
 // CHECK-NEXT: #pragma omp target map(tofrom: a[0:10],i)
 // CHECK-NEXT: foo()
 // CHECK-NEXT: #pragma omp target map(to: i) map(from: j)
 // CHECK-NEXT: foo()
 // CHECK-NEXT: #pragma omp target map(always,alloc: i)
 // CHECK-NEXT: foo()
 // CHECK-NEXT: #pragma omp target nowait
 // CHECK-NEXT: foo()
+// CHECK-NEXT: #pragma omp target depend(in : argc,argv[i:argc],a[:])
+// 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
 // CHECK-NEXT: foo();
 // CHECK-NEXT: #pragma omp target if(target: argc > 0)
 // CHECK-NEXT: foo()
 // CHECK-NEXT: #pragma omp target if(C)
 // CHECK-NEXT: foo()
 // CHECK-NEXT: #pragma omp target map(tofrom: i)
 // CHECK-NEXT: foo()
 // CHECK-NEXT: #pragma omp target map(tofrom: a[0:10],i)
 // CHECK-NEXT: foo()
 // CHECK-NEXT: #pragma omp target map(to: i) map(from: j)
 // CHECK-NEXT: foo()
 // CHECK-NEXT: #pragma omp target map(always,alloc: i)
 // CHECK-NEXT: foo()
 // CHECK-NEXT: #pragma omp target nowait
 // CHECK-NEXT: foo()
+// CHECK-NEXT: #pragma omp target depend(in : argc,argv[i:argc],a[:])
+// CHECK-NEXT: foo()
 
 // CHECK-LABEL: int main(int argc, char **argv) {
 int main (int argc, char **argv) {
   int i, j, a[20];
 // CHECK-NEXT: int i, j, a[20]
 #pragma omp target
 // CHECK-NEXT: #pragma omp target
   foo();
// CHECK-NEXT: #pragma omp target map(always,alloc: i)
   foo();
 // CHECK-NEXT: foo();
 
 #pragma omp target nowait
 // CHECK-NEXT: #pragma omp target nowait
   foo();
 // CHECK-NEXT: foo();
 
+#pragma omp target depend(in : argc, argv[i:argc], a[:])
+// CHECK-NEXT: #pragma omp target depend(in : argc,argv[i:argc],a[:])
+  foo();
+// CHECK-NEXT: foo();
+
   return tmain<int, 5>(argc, &argc) + tmain<char, 1>(argv[0][0], argv[0]);
 }
 
 #endif

cfe/trunk/test/OpenMP/target_depend_messages.cpp

+// RUN: %clang_cc1 -verify -fopenmp -ferror-limit 100 -o - -std=c++11 %s
+
+void foo() {
+}
+
+bool foobool(int argc) {
+  return argc;
+}
+
+struct S1; // expected-note {{declared here}}
+
+class vector {
+  public:
+    int operator[](int index) { return 0; }
+};
+
+int main(int argc, char **argv, char *env[]) {
+  vector vec;
+  typedef float V __attribute__((vector_size(16)));
+  V a;
+  auto arr = x; // expected-error {{use of undeclared identifier 'x'}}
+
+  #pragma omp target depend // expected-error {{expected '(' after 'depend'}}
+  foo();
+  #pragma omp target depend ( // expected-error {{expected 'in', 'out' or 'inout' in OpenMP clause 'depend'}} expected-error {{expected ')'}} expected-note {{to match this '('}} expected-warning {{missing ':' after dependency type - ignoring}}
+  foo();
+  #pragma omp target depend () // expected-error {{expected 'in', 'out' or 'inout' in OpenMP clause 'depend'}} expected-warning {{missing ':' after dependency type - ignoring}}
+  foo();
+  #pragma omp target depend (argc // expected-error {{expected 'in', 'out' or 'inout' in OpenMP clause 'depend'}} expected-warning {{missing ':' after dependency type - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target depend (source : argc) // expected-error {{expected 'in', 'out' or 'inout' in OpenMP clause 'depend'}}
+  foo();
+  #pragma omp target depend (source) // expected-error {{expected expression}} expected-warning {{missing ':' after dependency type - ignoring}}
+  foo();
+  #pragma omp target depend (in : argc)) // expected-warning {{extra tokens at the end of '#pragma omp target' are ignored}}
+  foo();
+  #pragma omp target depend (out: ) // expected-error {{expected expression}}
+  foo();
+  #pragma omp target depend (inout : foobool(argc)), depend (in, argc) // expected-error {{expected variable name, array element or array section}} expected-warning {{missing ':' after dependency type - ignoring}} expected-error {{expected expression}}
+  foo();
+  #pragma omp target depend (out :S1) // expected-error {{'S1' does not refer to a value}}
+  foo();
+  #pragma omp target depend(in : argv[1][1] = '2') // expected-error {{expected variable name, array element or array section}}
+  foo();
+  #pragma omp target depend (in : vec[1]) // expected-error {{expected variable name, array element or array section}}
+  foo();
+  #pragma omp target depend (in : argv[0])
+  foo();
+  #pragma omp target depend (in : ) // expected-error {{expected expression}}
+  foo();
+  #pragma omp target depend (in : main) // expected-error {{expected variable name, array element or array section}}
+  foo();
+  #pragma omp target depend(in : a[0]) // expected-error{{expected variable name, array element or array section}}
+  foo();
+  #pragma omp target depend (in : vec[1:2]) // expected-error {{ value is not an array or pointer}}
+  foo();
+  #pragma omp target depend (in : argv[ // expected-error {{expected expression}} expected-error {{expected ']'}} expected-error {{expected ')'}} expected-note {{to match this '['}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target depend (in : argv[: // expected-error {{expected expression}} expected-error {{expected ']'}} expected-error {{expected ')'}} expected-note {{to match this '['}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target depend (in : argv[:] // expected-error {{section length is unspecified and cannot be inferred because subscripted value is not an array}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target depend (in : argv[argc: // expected-error {{expected expression}} expected-error {{expected ']'}} expected-error {{expected ')'}} expected-note {{to match this '['}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target depend (in : argv[argc:argc] // expected-error {{expected ')'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target depend (in : argv[0:-1]) // expected-error {{section length is evaluated to a negative value -1}}
+  foo();
+  #pragma omp target depend (in : argv[-1:0]) // expected-error {{section lower bound is evaluated to a negative value -1}}
+  foo();
+  #pragma omp target depend (in : argv[:]) // expected-error {{section length is unspecified and cannot be inferred because subscripted value is not an array}}
+  foo();
+  #pragma omp target depend (in : argv[3:4:1]) // expected-error {{expected ']'}} expected-note {{to match this '['}}
+  foo();
+  #pragma omp target depend(in:a[0:1]) // expected-error {{subscripted value is not an array or pointer}}
+  foo();
+  #pragma omp target depend(in:argv[argv[:2]:1]) // expected-error {{OpenMP array section is not allowed here}}
+  foo();
+  #pragma omp target depend(in:argv[0:][:]) // expected-error {{section length is unspecified and cannot be inferred because subscripted value is not an array}}
+  foo();
+  #pragma omp target depend(in:env[0:][:]) // expected-error {{section length is unspecified and cannot be inferred because subscripted value is an array of unknown bound}}
+  foo();
+  #pragma omp target depend(in : argv[ : argc][1 : argc - 1])
+  foo();
+  #pragma omp target depend(in : arr[0])
+  foo();
+
+  return 0;
+}