1 // RUN: %clang_cc1 -verify -fopenmp -ferror-limit 100  %s -Wuninitialized
2 // RUN: %clang_cc1 -verify -fopenmp -fopenmp-version=99 -DOMP99 -verify=expected,rev -ferror-limit 100  %s -Wuninitialized
3 
4 int a;
5 #pragma omp requires unified_address allocate(a) // rev-note {{unified_address clause previously used here}} expected-note {{unified_address clause previously used here}} expected-note {{unified_address clause previously used here}} expected-note {{unified_address clause previously used here}} expected-note {{unified_address clause previously used here}} expected-note{{unified_address clause previously used here}} expected-error {{unexpected OpenMP clause 'allocate' in directive '#pragma omp requires'}}
6 
7 #pragma omp requires unified_shared_memory // rev-note {{unified_shared_memory clause previously used here}} expected-note{{unified_shared_memory clause previously used here}}
8 
9 #pragma omp requires unified_shared_memory, unified_shared_memory // expected-error {{Only one unified_shared_memory clause can appear on a requires directive in a single translation unit}} expected-error {{directive '#pragma omp requires' cannot contain more than one 'unified_shared_memory' clause}}
10 
11 #pragma omp requires unified_address // expected-error {{Only one unified_address clause can appear on a requires directive in a single translation unit}}
12 
13 #pragma omp requires unified_address, unified_address // expected-error {{Only one unified_address clause can appear on a requires directive in a single translation unit}} expected-error {{directive '#pragma omp requires' cannot contain more than one 'unified_address' clause}}
14 
15 #ifdef OMP99
16 #pragma omp requires reverse_offload // rev-note {{reverse_offload clause previously used here}} rev-note {{reverse_offload clause previously used here}}
17 
18 #pragma omp requires reverse_offload, reverse_offload // rev-error {{Only one reverse_offload clause can appear on a requires directive in a single translation unit}} rev-error {{directive '#pragma omp requires' cannot contain more than one 'reverse_offload' clause}}
19 #endif
20 
21 #pragma omp requires dynamic_allocators // rev-note {{dynamic_allocators clause previously used here}} expected-note {{dynamic_allocators clause previously used here}}
22 
23 #pragma omp requires dynamic_allocators, dynamic_allocators // expected-error {{Only one dynamic_allocators clause can appear on a requires directive in a single translation unit}} expected-error {{directive '#pragma omp requires' cannot contain more than one 'dynamic_allocators' clause}}
24 
25 #pragma omp requires atomic_default_mem_order(seq_cst) // rev-note {{atomic_default_mem_order clause previously used here}} expected-note {{atomic_default_mem_order clause previously used here}} expected-note {{atomic_default_mem_order clause previously used here}} expected-note {{atomic_default_mem_order clause previously used here}} expected-note {{atomic_default_mem_order clause previously used here}}
26 
27 #pragma omp requires atomic_default_mem_order(acq_rel) // expected-error {{Only one atomic_default_mem_order clause can appear on a requires directive in a single translation unit}}
28 
29 #pragma omp requires atomic_default_mem_order(relaxed) // expected-error {{Only one atomic_default_mem_order clause can appear on a requires directive in a single translation unit}}
30 
31 #pragma omp requires atomic_default_mem_order // expected-error {{expected '(' after 'atomic_default_mem_order'}} expected-error {{expected at least one clause on '#pragma omp requires' directive}}
32 
33 #pragma omp requires atomic_default_mem_order( // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{expected 'seq_cst', 'acq_rel' or 'relaxed' in OpenMP clause 'atomic_default_mem_order'}} expected-error {{expected at least one clause on '#pragma omp requires' directive}}
34 
35 #pragma omp requires atomic_default_mem_order(seq_cst // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{Only one atomic_default_mem_order clause can appear on a requires directive in a single translation unit}}
36 
37 #pragma omp requires atomic_default_mem_order(invalid_modifier) // expected-error {{expected 'seq_cst', 'acq_rel' or 'relaxed' in OpenMP clause 'atomic_default_mem_order'}} expected-error {{expected at least one clause on '#pragma omp requires' directive}}
38 
39 #pragma omp requires atomic_default_mem_order(shared) // expected-error {{expected 'seq_cst', 'acq_rel' or 'relaxed' in OpenMP clause 'atomic_default_mem_order'}} expected-error {{expected at least one clause on '#pragma omp requires' directive}}
40 
41 #pragma omp requires atomic_default_mem_order(acq_rel), atomic_default_mem_order(relaxed) // expected-error {{directive '#pragma omp requires' cannot contain more than one 'atomic_default_mem_order' claus}} expected-error {{Only one atomic_default_mem_order clause can appear on a requires directive in a single translation unit}}
42 
43 #pragma omp requires // expected-error {{expected at least one clause on '#pragma omp requires' directive}}
44 
45 #pragma omp requires invalid_clause // expected-warning {{extra tokens at the end of '#pragma omp requires' are ignored}} expected-error {{expected at least one clause on '#pragma omp requires' directive}}
46 
47 #pragma omp requires nowait // expected-error {{unexpected OpenMP clause 'nowait' in directive '#pragma omp requires'}} expected-error {{expected at least one clause on '#pragma omp requires' directive}}
48 
49 #pragma omp requires unified_address, invalid_clause // expected-warning {{extra tokens at the end of '#pragma omp requires' are ignored}} expected-error {{Only one unified_address clause can appear on a requires directive in a single translation unit}}
50 
51 #pragma omp requires invalid_clause unified_address // expected-warning {{extra tokens at the end of '#pragma omp requires' are ignored}} expected-error {{expected at least one clause on '#pragma omp requires' directive}}
52 
53 #ifdef OMP99
54 #pragma omp requires unified_shared_memory, unified_address, reverse_offload, dynamic_allocators, atomic_default_mem_order(seq_cst) // rev-error {{Only one unified_shared_memory clause can appear on a requires directive in a single translation unit}} rev-error{{Only one unified_address clause can appear on a requires directive in a single translation unit}} rev-error{{Only one reverse_offload clause can appear on a requires directive in a single translation unit}} rev-error{{Only one dynamic_allocators clause can appear on a requires directive in a single translation unit}} rev-error {{Only one atomic_default_mem_order clause can appear on a requires directive in a single translation unit}}
55 #endif
56 
57 namespace A {
58   #pragma omp requires unified_address // expected-error {{Only one unified_address clause can appear on a requires directive in a single translation unit}}
59   namespace B {
60     #pragma omp requires unified_address // expected-error {{Only one unified_address clause can appear on a requires directive in a single translation unit}}
61   }
62 }
63 
64 template <typename T> T foo() {
65   #pragma omp requires unified_address // expected-error {{unexpected OpenMP directive '#pragma omp requires'}}
66 }
67 
68 class C {
69   #pragma omp requires unified_address // expected-error {{'#pragma omp requires' directive must appear only in file scope}}
70 };
71 
72 int main() {
73   #pragma omp requires unified_address // expected-error {{unexpected OpenMP directive '#pragma omp requires'}}
74 }
75