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
foo()5 void foo() {
6 }
7
xxx(int argc)8 void xxx(int argc) {
9 int x; // expected-note {{initialize the variable 'x' to silence this warning}}
10 #pragma omp parallel
11 argc = x; // expected-warning {{variable 'x' is uninitialized when used here}}
12 }
13
14 #pragma omp parallel // expected-error {{unexpected OpenMP directive '#pragma omp parallel'}}
15
16 int a;
17 struct S;
18 S& bar();
main(int argc,char ** argv)19 int main(int argc, char **argv) {
20 S &s = bar();
21 #pragma omp parallel
22 (void)&s;
23 #pragma omp parallel { // expected-warning {{extra tokens at the end of '#pragma omp parallel' are ignored}}
24 foo();
25 #pragma omp parallel ( // expected-warning {{extra tokens at the end of '#pragma omp parallel' are ignored}}
26 foo();
27 #pragma omp parallel [ // expected-warning {{extra tokens at the end of '#pragma omp parallel' are ignored}}
28 foo();
29 #pragma omp parallel ] // expected-warning {{extra tokens at the end of '#pragma omp parallel' are ignored}}
30 foo();
31 #pragma omp parallel ) // expected-warning {{extra tokens at the end of '#pragma omp parallel' are ignored}}
32 foo();
33 #pragma omp parallel } // expected-warning {{extra tokens at the end of '#pragma omp parallel' are ignored}}
34 foo();
35 #pragma omp parallel
36 // expected-warning@+1 {{extra tokens at the end of '#pragma omp parallel' are ignored}}
37 #pragma omp parallel unknown()
38 foo();
39 L1:
40 foo();
41 #pragma omp parallel ordered // expected-error {{unexpected OpenMP clause 'ordered' in directive '#pragma omp parallel'}}
42 ;
43 #pragma omp parallel
44 ;
45 #pragma omp parallel
46 {
47 goto L1; // expected-error {{use of undeclared label 'L1'}}
48 argc++;
49 }
50
51 for (int i = 0; i < 10; ++i) {
52 switch(argc) {
53 case (0):
54 #pragma omp parallel
55 {
56 foo();
57 break; // expected-error {{'break' statement not in loop or switch statement}}
58 continue; // expected-error {{'continue' statement not in loop statement}}
59 }
60 default:
61 break;
62 }
63 }
64 #pragma omp parallel default(none) // expected-note 2 {{explicit data sharing attribute requested here}}
65 {
66 ++argc; // expected-error {{variable 'argc' must have explicitly specified data sharing attributes}}
67 ++a; // expected-error {{variable 'a' must have explicitly specified data sharing attributes}}
68 }
69
70 goto L2; // expected-error {{use of undeclared label 'L2'}}
71 #pragma omp parallel
72 L2:
73 foo();
74 #pragma omp parallel
75 {
76 return 1; // expected-error {{cannot return from OpenMP region}}
77 }
78
79 [[]] // expected-error {{an attribute list cannot appear here}}
80 #pragma omp parallel
81 for (int n = 0; n < 100; ++n) {}
82
83 return 0;
84 }
85
86 struct a {
87 static constexpr int b = 0;
88 };
89 template <bool> struct c;
90 template <typename d, typename e> bool operator<(d, e);
91 struct f {
92 int cbegin;
93 };
94 class g {
95 f blocks;
96 void j();
97 };
98 template <typename> struct is_error_code_enum : a {};
99 struct h {
100 template <typename i, typename = c<is_error_code_enum<i>::b>> h(i);
101 };
102 h operator<(h, h);
j()103 void g::j() {
104 #pragma omp parallel for default(none) if(a::b)
105 for (auto a = blocks.cbegin; a < blocks; ++a) // expected-error 2 {{invalid operands to binary expression ('f' and 'int')}}
106 ;
107 }
108