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