1 // RUN: %clang_cc1 -verify -fopenmp %s -Wuninitialized
2 // RUN: %clang_cc1 -verify -fopenmp -std=c++98 %s -Wuninitialized
3 // RUN: %clang_cc1 -verify -fopenmp -std=c++11 %s -Wuninitialized
4 
5 // RUN: %clang_cc1 -verify -fopenmp-simd %s -Wuninitialized
6 // RUN: %clang_cc1 -verify -fopenmp-simd -std=c++98 %s -Wuninitialized
7 // RUN: %clang_cc1 -verify -fopenmp-simd -std=c++11 %s -Wuninitialized
8 
9 void foo() {
10 }
11 
12 #if __cplusplus >= 201103L
13   // expected-note@+2 4 {{declared here}}
14 #endif
15 bool foobool(int argc) {
16   return argc;
17 }
18 
19 struct S1; // expected-note {{declared here}}
20 
21 template <class T, typename S, int N, int ST> // expected-note {{declared here}}
22 T tmain(T argc, S **argv) { //expected-note 2 {{declared here}}
23   #pragma omp distribute collapse // expected-error {{expected '(' after 'collapse'}}
24   for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
25   #pragma omp distribute collapse ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
26   for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
27   #pragma omp distribute collapse () // expected-error {{expected expression}}
28   for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
29   // expected-error@+3 {{expected ')'}} expected-note@+3 {{to match this '('}}
30   // expected-error@+2 2 {{expression is not an integral constant expression}}
31   // expected-note@+1 2 {{read of non-const variable 'argc' is not allowed in a constant expression}}
32   #pragma omp distribute collapse (argc
33   for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
34   // expected-error@+1 2 {{argument to 'collapse' clause must be a strictly positive integer value}}
35   #pragma omp distribute collapse (ST // expected-error {{expected ')'}} expected-note {{to match this '('}}
36   for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
37   #pragma omp distribute collapse (1)) // expected-warning {{extra tokens at the end of '#pragma omp distribute' are ignored}}
38   for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
39   #pragma omp distribute collapse ((ST > 0) ? 1 + ST : 2) // expected-note 2 {{as specified in 'collapse' clause}}
40   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 distribute', but found only 1}}
41 #if __cplusplus >= 201103L
42   // expected-note@+5 2 {{non-constexpr function 'foobool' cannot be used in a constant expression}}
43 #endif
44   // expected-error@+3 2 {{directive '#pragma omp distribute' cannot contain more than one 'collapse' clause}}
45   // expected-error@+2 {{argument to 'collapse' clause must be a strictly positive integer value}}
46   // expected-error@+1 2 {{expression is not an integral constant expression}}
47   #pragma omp distribute collapse (foobool(argc)), collapse (true), collapse (-5)
48   for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
49   #pragma omp distribute collapse (S) // expected-error {{'S' does not refer to a value}}
50   for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
51 #if __cplusplus <= 199711L
52   // expected-error@+4 2 {{expression is not an integral constant expression}}
53 #else
54   // expected-error@+2 2 {{integral constant expression must have integral or unscoped enumeration type, not 'char *'}}
55 #endif
56   #pragma omp distribute collapse (argv[1]=2) // expected-error {{expected ')'}} expected-note {{to match this '('}}
57   for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
58   #pragma omp distribute collapse (1)
59   for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
60   #pragma omp distribute collapse (N) // expected-error {{argument to 'collapse' clause must be a strictly positive integer value}}
61   for (T i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
62   #pragma omp distribute collapse (2) // expected-note {{as specified in 'collapse' clause}}
63   foo(); // expected-error {{expected 2 for loops after '#pragma omp distribute'}}
64   return argc;
65 }
66 
67 int main(int argc, char **argv) {
68   #pragma omp distribute collapse // expected-error {{expected '(' after 'collapse'}}
69   for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
70   #pragma omp distribute collapse ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
71   for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
72   #pragma omp distribute collapse () // expected-error {{expected expression}}
73   for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
74   #pragma omp distribute collapse (4 // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-note {{as specified in 'collapse' clause}}
75   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 distribute', but found only 1}}
76   #pragma omp distribute collapse (2+2)) // expected-warning {{extra tokens at the end of '#pragma omp distribute' are ignored}}  expected-note {{as specified in 'collapse' clause}}
77   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 distribute', but found only 1}}
78 #if __cplusplus >= 201103L
79   // expected-note@+2 {{non-constexpr function 'foobool' cannot be used in a constant expression}}
80 #endif
81   #pragma omp distribute collapse (foobool(1) > 0 ? 1 : 2) // expected-error {{expression is not an integral constant expression}}
82   for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
83 #if __cplusplus >= 201103L
84   // expected-note@+5 {{non-constexpr function 'foobool' cannot be used in a constant expression}}
85 #endif
86   // expected-error@+3 {{expression is not an integral constant expression}}
87   // expected-error@+2 2 {{directive '#pragma omp distribute' cannot contain more than one 'collapse' clause}}
88   // expected-error@+1 {{argument to 'collapse' clause must be a strictly positive integer value}}
89   #pragma omp distribute collapse (foobool(argc)), collapse (true), collapse (-5)
90   for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
91   #pragma omp distribute collapse (S1) // expected-error {{'S1' does not refer to a value}}
92   for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
93 #if __cplusplus <= 199711L
94   // expected-error@+4 {{expression is not an integral constant expression}}
95 #else
96   // expected-error@+2 {{integral constant expression must have integral or unscoped enumeration type, not 'char *'}}
97 #endif
98   #pragma omp distribute collapse (argv[1]=2) // expected-error {{expected ')'}} expected-note {{to match this '('}}
99   for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
100   // expected-error@+3 {{statement after '#pragma omp distribute' must be a for loop}}
101   // expected-note@+1 {{in instantiation of function template specialization 'tmain<int, char, -1, -2>' requested here}}
102   #pragma omp distribute collapse(collapse(tmain<int, char, -1, -2>(argc, argv) // expected-error 2 {{expected ')'}} expected-note 2 {{to match this '('}}
103   foo();
104   #pragma omp distribute collapse (2) // expected-note {{as specified in 'collapse' clause}}
105   foo(); // expected-error {{expected 2 for loops after '#pragma omp distribute'}}
106   // expected-note@+1 {{in instantiation of function template specialization 'tmain<int, char, 1, 0>' requested here}}
107   return tmain<int, char, 1, 0>(argc, argv);
108 }
109 
110