1 // RUN: %clang_cc1 -verify -fopenmp %s
2 
3 void foo() {
4 }
5 
6 bool foobool(int argc) {
7   return argc;
8 }
9 
10 struct S1; // expected-note {{declared here}}
11 
12 template <class T, typename S, int N, int ST> // expected-note {{declared here}}
13 T tmain(T argc, S **argv) { //expected-note 2 {{declared here}}
14 #pragma omp target
15 #pragma omp teams distribute parallel for collapse // expected-error {{expected '(' after 'collapse'}}
16   for (int i = ST; i < N; i++)
17     argv[0][i] = argv[0][i] - argv[0][i-ST];
18 
19 #pragma omp target
20 #pragma omp teams distribute parallel for collapse ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
21   for (int i = ST; i < N; i++)
22 
23     argv[0][i] = argv[0][i] - argv[0][i-ST];
24 #pragma omp target
25 #pragma omp teams distribute parallel for collapse () // expected-error {{expected expression}}
26   for (int i = ST; i < N; i++)
27     argv[0][i] = argv[0][i] - argv[0][i-ST];
28 
29 // expected-error@+4 {{expected ')'}} expected-note@+4 {{to match this '('}}
30 // expected-error@+3 2 {{expression is not an integral constant expression}}
31 // expected-note@+2 2 {{read of non-const variable 'argc' is not allowed in a constant expression}}
32 #pragma omp target
33 #pragma omp teams distribute parallel for collapse (argc
34   for (int i = ST; i < N; i++)
35     argv[0][i] = argv[0][i] - argv[0][i-ST];
36 
37 // expected-error@+2 2 {{argument to 'collapse' clause must be a strictly positive integer value}}
38 #pragma omp target
39 #pragma omp teams distribute parallel for collapse (ST // expected-error {{expected ')'}} expected-note {{to match this '('}}
40   for (int i = ST; i < N; i++)
41     argv[0][i] = argv[0][i] - argv[0][i-ST];
42 
43 #pragma omp target
44 #pragma omp teams distribute parallel for collapse (1)) // expected-warning {{extra tokens at the end of '#pragma omp teams distribute parallel for' are ignored}}
45   for (int i = ST; i < N; i++)
46     argv[0][i] = argv[0][i] - argv[0][i-ST];
47 
48 #pragma omp target
49 #pragma omp teams distribute parallel for collapse ((ST > 0) ? 1 + ST : 2) // expected-note 2 {{as specified in 'collapse' clause}}
50   for (int i = ST; i < N; i++)
51     argv[0][i] = argv[0][i] - argv[0][i-ST]; // expected-error 2 {{expected 2 for loops after '#pragma omp teams distribute parallel for', but found only 1}}
52 
53 // expected-error@+4 2 {{directive '#pragma omp teams distribute parallel for' cannot contain more than one 'collapse' clause}}
54 // expected-error@+3 2 {{argument to 'collapse' clause must be a strictly positive integer value}}
55 // expected-error@+2 2 {{expression is not an integral constant expression}}
56 #pragma omp target
57 #pragma omp teams distribute parallel for collapse (foobool(argc)), collapse (true), collapse (-5)
58   for (int i = ST; i < N; i++)
59     argv[0][i] = argv[0][i] - argv[0][i-ST];
60 
61 #pragma omp distribute collapse (S) // expected-error {{'S' does not refer to a value}}
62   for (int i = ST; i < N; i++)
63     argv[0][i] = argv[0][i] - argv[0][i-ST];
64 
65 // expected-error@+2 2 {{expression is not an integral constant expression}}
66 #pragma omp target
67 #pragma omp teams distribute parallel for collapse (argv[1]=2) // expected-error {{expected ')'}} expected-note {{to match this '('}}
68   for (int i = ST; i < N; i++)
69     argv[0][i] = argv[0][i] - argv[0][i-ST];
70 
71 #pragma omp target
72 #pragma omp teams distribute parallel for collapse (1)
73   for (int i = ST; i < N; i++)
74     argv[0][i] = argv[0][i] - argv[0][i-ST];
75 
76 #pragma omp target
77 #pragma omp teams distribute parallel for collapse (N) // expected-error {{argument to 'collapse' clause must be a strictly positive integer value}}
78   for (T i = ST; i < N; i++)
79     argv[0][i] = argv[0][i] - argv[0][i-ST];
80 
81 #pragma omp target
82 #pragma omp teams distribute parallel for collapse (2) // expected-note {{as specified in 'collapse' clause}}
83   foo(); // expected-error {{expected 2 for loops after '#pragma omp teams distribute parallel for'}}
84   return argc;
85 }
86 
87 int main(int argc, char **argv) {
88 #pragma omp target
89 #pragma omp teams distribute parallel for collapse // expected-error {{expected '(' after 'collapse'}}
90   for (int i = 4; i < 12; i++)
91     argv[0][i] = argv[0][i] - argv[0][i-4];
92 
93 #pragma omp target
94 #pragma omp teams distribute parallel for collapse ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
95   for (int i = 4; i < 12; i++)
96     argv[0][i] = argv[0][i] - argv[0][i-4];
97 
98 #pragma omp target
99 #pragma omp teams distribute parallel for collapse () // expected-error {{expected expression}}
100   for (int i = 4; i < 12; i++)
101     argv[0][i] = argv[0][i] - argv[0][i-4];
102 
103 #pragma omp target
104 #pragma omp teams distribute parallel for collapse (4 // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-note {{as specified in 'collapse' clause}}
105   for (int i = 4; i < 12; i++)
106     argv[0][i] = argv[0][i] - argv[0][i-4]; // expected-error {{expected 4 for loops after '#pragma omp teams distribute parallel for', but found only 1}}
107 
108 #pragma omp target
109 #pragma omp teams distribute parallel for collapse (2+2)) // expected-warning {{extra tokens at the end of '#pragma omp teams distribute parallel for' are ignored}}  expected-note {{as specified in 'collapse' clause}}
110   for (int i = 4; i < 12; i++)
111     argv[0][i] = argv[0][i] - argv[0][i-4]; // expected-error {{expected 4 for loops after '#pragma omp teams distribute parallel for', but found only 1}}
112 
113 #pragma omp target
114 #pragma omp teams distribute parallel for collapse (foobool(1) > 0 ? 1 : 2) // expected-error {{expression is not an integral constant expression}}
115   for (int i = 4; i < 12; i++)
116     argv[0][i] = argv[0][i] - argv[0][i-4];
117 
118 // expected-error@+4 {{expression is not an integral constant expression}}
119 // expected-error@+3 2 {{directive '#pragma omp teams distribute parallel for' cannot contain more than one 'collapse' clause}}
120 // expected-error@+2 2 {{argument to 'collapse' clause must be a strictly positive integer value}}
121 #pragma omp target
122 #pragma omp teams distribute parallel for collapse (foobool(argc)), collapse (true), collapse (-5)
123   for (int i = 4; i < 12; i++)
124     argv[0][i] = argv[0][i] - argv[0][i-4];
125 
126 #pragma omp target
127 #pragma omp teams distribute parallel for collapse (S1) // expected-error {{'S1' does not refer to a value}}
128   for (int i = 4; i < 12; i++)
129     argv[0][i] = argv[0][i] - argv[0][i-4];
130 
131 // expected-error@+2 {{expression is not an integral constant expression}}
132 #pragma omp target
133 #pragma omp teams distribute parallel for collapse (argv[1]=2) // expected-error {{expected ')'}} expected-note {{to match this '('}}
134   for (int i = 4; i < 12; i++)
135     argv[0][i] = argv[0][i] - argv[0][i-4];
136 
137 // expected-error@+4 {{statement after '#pragma omp teams distribute parallel for' must be a for loop}}
138 // expected-note@+2 {{in instantiation of function template specialization 'tmain<int, char, -1, -2>' requested here}}
139 #pragma omp target
140 #pragma omp teams distribute parallel for collapse(collapse(tmain<int, char, -1, -2>(argc, argv) // expected-error 2 {{expected ')'}} expected-note 2 {{to match this '('}}
141   foo();
142 
143 #pragma omp target
144 #pragma omp teams distribute parallel for collapse (2) // expected-note {{as specified in 'collapse' clause}}
145   foo(); // expected-error {{expected 2 for loops after '#pragma omp teams distribute parallel for'}}
146 
147 // expected-note@+1 {{in instantiation of function template specialization 'tmain<int, char, 1, 0>' requested here}}
148   return tmain<int, char, 1, 0>(argc, argv);
149 }
150 
151