1 // RUN: %clang_cc1 -verify=expected,omp45 -fopenmp -fopenmp-version=45 -ferror-limit 100 -std=c++11 -o - %s -Wuninitialized
2 // RUN: %clang_cc1 -verify=expected,omp50 -fopenmp -ferror-limit 100 -std=c++11 -o - %s -Wuninitialized
3
4 // RUN: %clang_cc1 -verify=expected,omp45 -fopenmp-simd -fopenmp-version=45 -ferror-limit 100 -std=c++11 -o - %s -Wuninitialized
5 // RUN: %clang_cc1 -verify=expected,omp50 -fopenmp-simd -ferror-limit 100 -std=c++11 -o - %s -Wuninitialized
6
xxx(int argc)7 void xxx(int argc) {
8 int x; // expected-note {{initialize the variable 'x' to silence this warning}}
9 #pragma omp parallel for
10 for(int i = 0; i < 10; ++i)
11 argc = x; // expected-warning {{variable 'x' is uninitialized when used here}}
12 }
13
foo()14 void foo() {
15 }
16
17 #pragma omp parallel for // expected-error {{unexpected OpenMP directive '#pragma omp parallel for'}}
18
main(int argc,char ** argv)19 int main(int argc, char **argv) {
20 #pragma omp parallel for { // expected-warning {{extra tokens at the end of '#pragma omp parallel for' are ignored}}
21 for (int i = 0; i < argc; ++i)
22 foo();
23 #pragma omp parallel for ( // expected-warning {{extra tokens at the end of '#pragma omp parallel for' are ignored}}
24 for (int i = 0; i < argc; ++i)
25 foo();
26 #pragma omp parallel for[ // expected-warning {{extra tokens at the end of '#pragma omp parallel for' are ignored}}
27 for (int i = 0; i < argc; ++i)
28 foo();
29 #pragma omp parallel for] // expected-warning {{extra tokens at the end of '#pragma omp parallel for' are ignored}}
30 for (int i = 0; i < argc; ++i)
31 foo();
32 #pragma omp parallel for) // expected-warning {{extra tokens at the end of '#pragma omp parallel for' are ignored}}
33 for (int i = 0; i < argc; ++i)
34 foo();
35 #pragma omp parallel for } // expected-warning {{extra tokens at the end of '#pragma omp parallel for' are ignored}}
36 for (int i = 0; i < argc; ++i)
37 foo();
38 #pragma omp parallel for
39 for (int i = 0; i < argc; ++i)
40 foo();
41 // expected-warning@+1 {{extra tokens at the end of '#pragma omp parallel for' are ignored}}
42 #pragma omp parallel for unknown()
43 for (int i = 0; i < argc; ++i)
44 foo();
45 L1:
46 for (int i = 0; i < argc; ++i)
47 foo();
48 #pragma omp parallel for
49 for (int i = 0; i < argc; ++i)
50 foo();
51 #pragma omp parallel for
52 for (int i = 0; i < argc; ++i) {
53 goto L1; // expected-error {{use of undeclared label 'L1'}}
54 argc++;
55 }
56
57 for (int i = 0; i < 10; ++i) {
58 switch (argc) {
59 case (0):
60 #pragma omp parallel for
61 for (int i = 0; i < argc; ++i) {
62 foo();
63 break; // expected-error {{'break' statement cannot be used in OpenMP for loop}}
64 continue;
65 }
66 default:
67 break;
68 }
69 }
70 #pragma omp parallel for default(none) // expected-note {{explicit data sharing attribute requested here}}
71 for (int i = 0; i < 10; ++i)
72 ++argc; // expected-error {{variable 'argc' must have explicitly specified data sharing attributes}}
73
74 goto L2; // expected-error {{use of undeclared label 'L2'}}
75 #pragma omp parallel for
76 for (int i = 0; i < argc; ++i)
77 L2:
78 foo();
79 #pragma omp parallel for
80 for (int i = 0; i < argc; ++i) {
81 return 1; // expected-error {{cannot return from OpenMP region}}
82 }
83
84 [[]] // expected-error {{an attribute list cannot appear here}}
85 #pragma omp parallel for
86 for (int n = 0; n < 100; ++n) {
87 }
88
89 return 0;
90 }
91
test_ordered()92 void test_ordered() {
93 #pragma omp parallel for ordered ordered // expected-error {{directive '#pragma omp parallel for' cannot contain more than one 'ordered' clause}}
94 for (int i = 0; i < 16; ++i)
95 ;
96 #pragma omp parallel for order // omp45-error {{unexpected OpenMP clause 'order' in directive '#pragma omp parallel for'}} expected-error {{expected '(' after 'order'}}
97 for (int i = 0; i < 10; ++i)
98 ;
99 #pragma omp parallel for order( // omp45-error {{unexpected OpenMP clause 'order' in directive '#pragma omp parallel for'}} expected-error {{expected ')'}} expected-note {{to match this '('}} omp50-error {{expected 'concurrent' in OpenMP clause 'order'}}
100 for (int i = 0; i < 10; ++i)
101 ;
102 #pragma omp parallel for order(none // omp45-error {{unexpected OpenMP clause 'order' in directive '#pragma omp parallel for'}} expected-error {{expected ')'}} expected-note {{to match this '('}} omp50-error {{expected 'concurrent' in OpenMP clause 'order'}}
103 for (int i = 0; i < 10; ++i)
104 ;
105 #pragma omp parallel for order(concurrent // omp45-error {{unexpected OpenMP clause 'order' in directive '#pragma omp parallel for'}} expected-error {{expected ')'}} expected-note {{to match this '('}}
106 for (int i = 0; i < 10; ++i)
107 ;
108 #pragma omp parallel for order(concurrent) // omp45-error {{unexpected OpenMP clause 'order' in directive '#pragma omp parallel for'}}
109 for (int i = 0; i < 10; ++i)
110 ;
111 }
112
113