1 // RUN: %clang_cc1 -verify -fopenmp -ferror-limit 100 -o - -std=c++11 %s -Wuninitialized
2 
3 // RUN: %clang_cc1 -verify -fopenmp-simd -ferror-limit 100 -o - -std=c++11 %s -Wuninitialized
4 
5 void xxx(int argc) {
6   int x; // expected-note {{initialize the variable 'x' to silence this warning}}
7 #pragma omp target depend(in : argc)
8   argc = x; // expected-warning {{variable 'x' is uninitialized when used here}}
9 }
10 
11 void foo() {
12 }
13 
14 bool foobool(int argc) {
15   return argc;
16 }
17 
18 struct S1; // expected-note {{declared here}}
19 
20 class vector {
21   public:
22     int operator[](int index) { return 0; }
23 };
24 
25 int main(int argc, char **argv, char *env[]) {
26   vector vec;
27   typedef float V __attribute__((vector_size(16)));
28   V a;
29   auto arr = x; // expected-error {{use of undeclared identifier 'x'}}
30 
31   #pragma omp target depend // expected-error {{expected '(' after 'depend'}}
32   foo();
33   #pragma omp target depend ( // expected-error {{expected 'in', 'out', 'inout' or 'mutexinoutset' in OpenMP clause 'depend'}} expected-error {{expected ')'}} expected-note {{to match this '('}} expected-warning {{missing ':' after dependency type - ignoring}}
34   foo();
35   #pragma omp target depend () // expected-error {{expected 'in', 'out', 'inout' or 'mutexinoutset' in OpenMP clause 'depend'}} expected-warning {{missing ':' after dependency type - ignoring}}
36   foo();
37   #pragma omp target depend (argc // expected-error {{expected 'in', 'out', 'inout' or 'mutexinoutset' in OpenMP clause 'depend'}} expected-warning {{missing ':' after dependency type - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
38   foo();
39   #pragma omp target depend (source : argc) // expected-error {{expected 'in', 'out', 'inout' or 'mutexinoutset' in OpenMP clause 'depend'}}
40   foo();
41   #pragma omp target depend (source) // expected-error {{expected expression}} expected-warning {{missing ':' after dependency type - ignoring}}
42   foo();
43   #pragma omp target depend (in : argc)) // expected-warning {{extra tokens at the end of '#pragma omp target' are ignored}}
44   foo();
45   #pragma omp target depend (out: ) // expected-error {{expected expression}}
46   foo();
47   #pragma omp target depend (inout : foobool(argc)), depend (in, argc) // expected-error {{expected addressable lvalue expression, array element or array section}} expected-warning {{missing ':' after dependency type - ignoring}} expected-error {{expected expression}}
48   foo();
49   #pragma omp target depend (out :S1) // expected-error {{'S1' does not refer to a value}}
50   foo();
51   #pragma omp target depend(in : argv[1][1] = '2')
52   foo();
53   #pragma omp target depend (in : vec[1]) // expected-error {{expected addressable lvalue expression, array element or array section}}
54   foo();
55   #pragma omp target depend (in : argv[0])
56   foo();
57   #pragma omp target depend (in : ) // expected-error {{expected expression}}
58   foo();
59   #pragma omp target depend (in : main)
60   foo();
61   #pragma omp target depend(in : a[0]) // expected-error{{expected addressable lvalue expression, array element or array section}}
62   foo();
63   #pragma omp target depend (in : vec[1:2]) // expected-error {{ value is not an array or pointer}}
64   foo();
65   #pragma omp target depend (in : argv[ // expected-error {{expected expression}} expected-error {{expected ']'}} expected-error {{expected ')'}} expected-note {{to match this '['}} expected-note {{to match this '('}}
66   foo();
67   #pragma omp target depend (in : argv[: // expected-error {{expected expression}} expected-error {{expected ']'}} expected-error {{expected ')'}} expected-note {{to match this '['}} expected-note {{to match this '('}}
68   foo();
69   #pragma omp target depend (in : argv[:] // expected-error {{section length is unspecified and cannot be inferred because subscripted value is not an array}} expected-error {{expected ')'}} expected-note {{to match this '('}}
70   foo();
71   #pragma omp target depend (in : argv[argc: // expected-error {{expected expression}} expected-error {{expected ']'}} expected-error {{expected ')'}} expected-note {{to match this '['}} expected-note {{to match this '('}}
72   foo();
73   #pragma omp target depend (in : argv[argc:argc] // expected-error {{expected ')'}} expected-note {{to match this '('}}
74   foo();
75   #pragma omp target depend (in : argv[0:-1]) // expected-error {{section length is evaluated to a negative value -1}}
76   foo();
77   #pragma omp target depend (in : argv[-1:0]) // expected-error {{zero-length array section is not allowed in 'depend' clause}}
78   foo();
79   #pragma omp target depend (in : argv[:]) // expected-error {{section length is unspecified and cannot be inferred because subscripted value is not an array}}
80   foo();
81   #pragma omp target depend (in : argv[3:4:1]) // expected-error {{expected ']'}} expected-note {{to match this '['}}
82   foo();
83   #pragma omp target depend(in:a[0:1]) // expected-error {{subscripted value is not an array or pointer}}
84   foo();
85   #pragma omp target depend(in:argv[argv[:2]:1]) // expected-error {{OpenMP array section is not allowed here}}
86   foo();
87   #pragma omp target depend(in:argv[0:][:]) // expected-error {{section length is unspecified and cannot be inferred because subscripted value is not an array}}
88   foo();
89   #pragma omp target depend(in:env[0:][:]) // expected-error {{section length is unspecified and cannot be inferred because subscripted value is an array of unknown bound}}
90   foo();
91   #pragma omp target depend(in : argv[ : argc][1 : argc - 1])
92   foo();
93   #pragma omp target depend(in : arr[0])
94   foo();
95 
96   return 0;
97 }
98