1// RUN: %clang_cc1 -verify -fopenmp=libiomp5 %s
2
3void foo() {
4}
5
6bool foobool(int argc) {
7  return argc;
8}
9
10struct S1; // expected-note {{declared here}}
11
12template <class T, typename S, int N, int ST> // expected-note {{declared here}}
13T tmain(T argc, S **argv) { //expected-note 2 {{declared here}}
14  #pragma omp for collapse // expected-error {{expected '(' after 'collapse'}}
15  for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
16  #pragma omp for collapse ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
17  for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
18  #pragma omp for collapse () // expected-error {{expected expression}}
19  for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
20  // expected-error@+3 {{expected ')'}} expected-note@+3 {{to match this '('}}
21  // expected-error@+2 2 {{expression is not an integral constant expression}}
22  // expected-note@+1 2 {{read of non-const variable 'argc' is not allowed in a constant expression}}
23  #pragma omp for collapse (argc
24  for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
25  // expected-error@+1 2 {{argument to 'collapse' clause must be a positive integer value}}
26  #pragma omp for collapse (ST // expected-error {{expected ')'}} expected-note {{to match this '('}}
27  for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
28  #pragma omp for collapse (1)) // expected-warning {{extra tokens at the end of '#pragma omp for' are ignored}}
29  for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
30  #pragma omp for collapse ((ST > 0) ? 1 + ST : 2) // expected-note 2 {{as specified in 'collapse' clause}}
31  for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST]; // expected-error 2 {{expected 2 for loops after '#pragma omp for', but found only 1}}
32  // expected-error@+3 2 {{directive '#pragma omp for' cannot contain more than one 'collapse' clause}}
33  // expected-error@+2 2 {{argument to 'collapse' clause must be a positive integer value}}
34  // expected-error@+1 2 {{expression is not an integral constant expression}}
35  #pragma omp for collapse (foobool(argc)), collapse (true), collapse (-5)
36  for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
37  #pragma omp for collapse (S) // expected-error {{'S' does not refer to a value}}
38  for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
39  // expected-error@+1 2 {{expression is not an integral constant expression}}
40  #pragma omp for collapse (argv[1]=2) // expected-error {{expected ')'}} expected-note {{to match this '('}}
41  for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
42  #pragma omp for collapse (1)
43  for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
44  #pragma omp for collapse (N) // expected-error {{argument to 'collapse' clause must be a positive integer value}}
45  for (T i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
46  #pragma omp for collapse (2) // expected-note {{as specified in 'collapse' clause}}
47  foo(); // expected-error {{expected 2 for loops after '#pragma omp for'}}
48  return argc;
49}
50
51int main(int argc, char **argv) {
52  #pragma omp for collapse // expected-error {{expected '(' after 'collapse'}}
53  for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
54  #pragma omp for collapse ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
55  for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
56  #pragma omp for collapse () // expected-error {{expected expression}}
57  for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
58  #pragma omp for collapse (4 // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-note {{as specified in 'collapse' clause}}
59  for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4]; // expected-error {{expected 4 for loops after '#pragma omp for', but found only 1}}
60  #pragma omp for collapse (2+2)) // expected-warning {{extra tokens at the end of '#pragma omp for' are ignored}}  expected-note {{as specified in 'collapse' clause}}
61  for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4]; // expected-error {{expected 4 for loops after '#pragma omp for', but found only 1}}
62  #pragma omp for collapse (foobool(1) > 0 ? 1 : 2) // expected-error {{expression is not an integral constant expression}}
63  for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
64  // expected-error@+3 {{expression is not an integral constant expression}}
65  // expected-error@+2 2 {{directive '#pragma omp for' cannot contain more than one 'collapse' clause}}
66  // expected-error@+1 2 {{argument to 'collapse' clause must be a positive integer value}}
67  #pragma omp for collapse (foobool(argc)), collapse (true), collapse (-5)
68  for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
69  #pragma omp for collapse (S1) // expected-error {{'S1' does not refer to a value}}
70  for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
71  // expected-error@+1 {{expression is not an integral constant expression}}
72  #pragma omp for collapse (argv[1]=2) // expected-error {{expected ')'}} expected-note {{to match this '('}}
73  for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
74  // expected-error@+3 {{statement after '#pragma omp for' must be a for loop}}
75  // expected-note@+1 {{in instantiation of function template specialization 'tmain<int, char, -1, -2>' requested here}}
76  #pragma omp for collapse(collapse(tmain<int, char, -1, -2>(argc, argv) // expected-error 2 {{expected ')'}} expected-note 2 {{to match this '('}}
77  foo();
78  #pragma omp for collapse (2) // expected-note {{as specified in 'collapse' clause}}
79  foo(); // expected-error {{expected 2 for loops after '#pragma omp for'}}
80  // expected-note@+1 {{in instantiation of function template specialization 'tmain<int, char, 1, 0>' requested here}}
81  return tmain<int, char, 1, 0>(argc, argv);
82}
83
84