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