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