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