1 // RUN: %clang_cc1 -verify -fopenmp -ferror-limit 100 -std=c++11 -o - %s -Wuninitialized
2 
3 // RUN: %clang_cc1 -verify -fopenmp-simd -ferror-limit 100 -std=c++11 -o - %s -Wuninitialized
4 
xxx(int argc)5 void xxx(int argc) {
6   int x; // expected-note {{initialize the variable 'x' to silence this warning}}
7 #pragma omp target teams distribute
8   for (int i = 0; i < 10; ++i)
9     argc = x; // expected-warning {{variable 'x' is uninitialized when used here}}
10 }
11 
foo()12 void foo() {
13 }
14 
15 static int pvt;
16 #pragma omp threadprivate(pvt)
17 
18 #pragma omp target teams distribute // expected-error {{unexpected OpenMP directive '#pragma omp target teams distribute'}}
19 
main(int argc,char ** argv)20 int main(int argc, char **argv) {
21 #pragma omp target teams distribute { // expected-warning {{extra tokens at the end of '#pragma omp target teams distribute' are ignored}}
22   for (int i = 0; i < argc; ++i)
23     foo();
24 #pragma omp target teams distribute ( // expected-warning {{extra tokens at the end of '#pragma omp target teams distribute' are ignored}}
25   for (int i = 0; i < argc; ++i)
26     foo();
27 #pragma omp target teams distribute[ // expected-warning {{extra tokens at the end of '#pragma omp target teams distribute' are ignored}}
28   for (int i = 0; i < argc; ++i)
29     foo();
30 #pragma omp target teams distribute] // expected-warning {{extra tokens at the end of '#pragma omp target teams distribute' are ignored}}
31   for (int i = 0; i < argc; ++i)
32     foo();
33 #pragma omp target teams distribute) // expected-warning {{extra tokens at the end of '#pragma omp target teams distribute' are ignored}}
34   for (int i = 0; i < argc; ++i)
35     foo();
36 #pragma omp target teams distribute } // expected-warning {{extra tokens at the end of '#pragma omp target teams distribute' are ignored}}
37   for (int i = 0; i < argc; ++i)
38     foo();
39 #pragma omp target teams distribute
40   for (int i = 0; i < argc; ++i)
41     foo();
42 // expected-warning@+1 {{extra tokens at the end of '#pragma omp target teams distribute' are ignored}}
43 #pragma omp target teams distribute unknown()
44   for (int i = 0; i < argc; ++i)
45     foo();
46 L1:
47   for (int i = 0; i < argc; ++i)
48     foo();
49 #pragma omp target teams distribute
50   for (int i = 0; i < argc; ++i)
51     foo();
52 #pragma omp target teams distribute
53   for (int i = 0; i < argc; ++i) {
54     goto L1; // expected-error {{use of undeclared label 'L1'}}
55     argc++;
56   }
57 
58   for (int i = 0; i < 10; ++i) {
59     switch (argc) {
60     case (0):
61 #pragma omp target teams distribute
62       for (int i = 0; i < argc; ++i) {
63         foo();
64         break; // expected-error {{'break' statement cannot be used in OpenMP for loop}}
65         continue;
66       }
67     default:
68       break;
69     }
70   }
71 #pragma omp target teams distribute default(none) // expected-note {{explicit data sharing attribute requested here}}
72   for (int i = 0; i < 10; ++i)
73     ++argc; // expected-error {{variable 'argc' must have explicitly specified data sharing attributes}}
74 
75   goto L2; // expected-error {{use of undeclared label 'L2'}}
76 #pragma omp target teams distribute
77   for (int i = 0; i < argc; ++i)
78   L2:
79   foo();
80 #pragma omp target teams distribute
81   for (int i = 0; i < argc; ++i) {
82     return 1; // expected-error {{cannot return from OpenMP region}}
83   }
84 
85   [[]] // expected-error {{an attribute list cannot appear here}}
86 #pragma omp target teams distribute
87       for (int n = 0; n < 100; ++n) {
88   }
89 
90 #pragma omp target teams distribute copyin(pvt) // expected-error {{unexpected OpenMP clause 'copyin' in directive '#pragma omp target teams distribute'}}
91   for (int n = 0; n < 100; ++n) {}
92 
93   return 0;
94 }
95 
test_ordered()96 void test_ordered() {
97 #pragma omp target teams distribute ordered // expected-error {{unexpected OpenMP clause 'ordered' in directive '#pragma omp target teams distribute'}}
98   for (int i = 0; i < 16; ++i)
99     ;
100 }
101 
102