1 // RUN: %clang_cc1 -verify -fopenmp %s -Wuninitialized
2
3 // RUN: %clang_cc1 -verify -fopenmp-simd %s -Wuninitialized
4
5 extern int omp_default_mem_alloc;
6
xxx(int argc)7 void xxx(int argc) {
8 int i, lin, step; // expected-note {{initialize the variable 'lin' to silence this warning}} expected-note {{initialize the variable 'step' to silence this warning}}
9 #pragma omp for linear(lin : step) // expected-warning {{variable 'lin' is uninitialized when used here}} expected-warning {{variable 'step' is uninitialized when used here}}
10 for (i = 0; i < 10; ++i)
11 ;
12 }
13
14 namespace X {
15 int x;
16 };
17
18 struct B {
19 static int ib; // expected-note {{'B::ib' declared here}}
bfooB20 static int bfoo() { return 8; }
21 };
22
bfoo()23 int bfoo() { return 4; }
24
25 int z;
26 const int C1 = 1;
27 const int C2 = 2;
test_linear_colons()28 void test_linear_colons()
29 {
30 int B = 0;
31 #pragma omp for linear(B:bfoo())
32 for (int i = 0; i < 10; ++i) ;
33 // expected-error@+1 {{unexpected ':' in nested name specifier; did you mean '::'}}
34 #pragma omp for linear(B::ib:B:bfoo())
35 for (int i = 0; i < 10; ++i) ;
36 // expected-error@+1 {{use of undeclared identifier 'ib'; did you mean 'B::ib'}}
37 #pragma omp for linear(B:ib)
38 for (int i = 0; i < 10; ++i) ;
39 // expected-error@+1 {{unexpected ':' in nested name specifier; did you mean '::'?}}
40 #pragma omp for linear(z:B:ib)
41 for (int i = 0; i < 10; ++i) ;
42 #pragma omp for linear(B:B::bfoo())
43 for (int i = 0; i < 10; ++i) ;
44 #pragma omp for linear(X::x : ::z)
45 for (int i = 0; i < 10; ++i) ;
46 #pragma omp for linear(B,::z, X::x)
47 for (int i = 0; i < 10; ++i) ;
48 #pragma omp for linear(::z)
49 for (int i = 0; i < 10; ++i) ;
50 // expected-error@+1 {{expected variable name}}
51 #pragma omp for linear(B::bfoo())
52 for (int i = 0; i < 10; ++i) ;
53 #pragma omp for linear(B::ib,B:C1+C2)
54 for (int i = 0; i < 10; ++i) ;
55 }
56
57 template<int L, class T, class N> T test_template(T* arr, N num) {
58 N i;
59 T sum = (T)0;
60 T ind2 = - num * L; // expected-note {{'ind2' defined here}}
61 // expected-error@+1 {{argument of a linear clause should be of integral or pointer type}}
62 #pragma omp for linear(ind2:L)
63 for (i = 0; i < num; ++i) {
64 T cur = arr[(int)ind2];
65 ind2 += L;
66 sum += cur;
67 }
68 return T();
69 }
70
test_warn()71 template<int LEN> int test_warn() {
72 int ind2 = 0;
73 // expected-warning@+1 {{zero linear step (ind2 should probably be const)}}
74 #pragma omp for linear(ind2:LEN)
75 for (int i = 0; i < 100; i++) {
76 ind2 += LEN;
77 }
78 return ind2;
79 }
80
81 struct S1; // expected-note 2 {{declared here}} expected-note 2 {{forward declaration of 'S1'}}
82 extern S1 a;
83 class S2 {
84 mutable int a;
85 public:
S2()86 S2():a(0) { }
87 };
88 const S2 b; // expected-note 2 {{'b' defined here}}
89 const S2 ba[5];
90 class S3 {
91 int a;
92 public:
S3()93 S3():a(0) { }
94 };
95 const S3 ca[5];
96 class S4 {
97 int a;
98 S4();
99 public:
S4(int v)100 S4(int v):a(v) { }
101 };
102 class S5 {
103 int a;
S5()104 S5():a(0) {}
105 public:
S5(int v)106 S5(int v):a(v) { }
107 };
108
109 S3 h;
110 #pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
111
foomain(I argc,C ** argv)112 template<class I, class C> int foomain(I argc, C **argv) {
113 I e(4);
114 I g(5);
115 int i, k;
116 int &j = i;
117 #pragma omp for linear // expected-error {{expected '(' after 'linear'}}
118 for (int k = 0; k < argc; ++k) ++k;
119 #pragma omp for linear ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
120 for (int k = 0; k < argc; ++k) ++k;
121 #pragma omp for linear () // expected-error {{expected expression}}
122 for (int k = 0; k < argc; ++k) ++k;
123 #pragma omp for linear (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
124 for (int k = 0; k < argc; ++k) ++k;
125 #pragma omp for linear (argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
126 for (int k = 0; k < argc; ++k) ++k;
127 #pragma omp for linear (argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
128 for (int k = 0; k < argc; ++k) ++k;
129 #pragma omp for linear (argc : 5) allocate , allocate(, allocate(omp_default , allocate(omp_default_mem_alloc, allocate(omp_default_mem_alloc:, allocate(omp_default_mem_alloc: argc, allocate(omp_default_mem_alloc: argv), allocate(argv) // expected-error {{expected '(' after 'allocate'}} expected-error 2 {{expected expression}} expected-error 2 {{expected ')'}} expected-error {{use of undeclared identifier 'omp_default'}} expected-note 2 {{to match this '('}}
130 for (int k = 0; k < argc; ++k) ++k;
131 #pragma omp for linear (S1) // expected-error {{'S1' does not refer to a value}}
132 for (int k = 0; k < argc; ++k) ++k;
133 // expected-error@+2 {{linear variable with incomplete type 'S1'}}
134 // expected-error@+1 {{argument of a linear clause should be of integral or pointer type, not 'S2'}}
135 #pragma omp for linear (a, b:B::ib)
136 for (int k = 0; k < argc; ++k) ++k;
137 #pragma omp for linear (argv[1]) // expected-error {{expected variable name}}
138 for (int k = 0; k < argc; ++k) ++k;
139 #pragma omp for linear(e, g, k)
140 for (int k = 0; k < argc; ++k) ++k;
141 #pragma omp for linear(h) // expected-error {{threadprivate or thread local variable cannot be linear}}
142 for (int k = 0; k < argc; ++k) ++k;
143 #pragma omp for linear(i)
144 for (int k = 0; k < argc; ++k) ++k;
145 #pragma omp parallel
146 {
147 int v = 0;
148 int i;
149 #pragma omp for linear(v:i)
150 for (int k = 0; k < argc; ++k) { i = k; v += i; }
151 }
152 #pragma omp for linear(j)
153 for (int k = 0; k < argc; ++k) ++k;
154 int v = 0;
155 #pragma omp for linear(v:j)
156 for (int k = 0; k < argc; ++k) { ++k; v += j; }
157 #pragma omp for linear(i)
158 for (int k = 0; k < argc; ++k) ++k;
159 #pragma omp for linear(i) ordered(1) // expected-error {{'linear' clause cannot be specified along with 'ordered' clause with a parameter}}
160 for (int k = 0; k < argc; ++k) ++k;
161 return 0;
162 }
163
164 namespace A {
165 double x;
166 #pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
167 }
168 namespace C {
169 using A::x;
170 }
171
main(int argc,char ** argv)172 int main(int argc, char **argv) {
173 double darr[100];
174 // expected-note@+1 {{in instantiation of function template specialization 'test_template<-4, double, int>' requested here}}
175 test_template<-4>(darr, 4);
176 // expected-note@+1 {{in instantiation of function template specialization 'test_warn<0>' requested here}}
177 test_warn<0>();
178
179 S4 e(4); // expected-note {{'e' defined here}}
180 S5 g(5); // expected-note {{'g' defined here}}
181 int i, k;
182 int &j = i;
183 #pragma omp for linear // expected-error {{expected '(' after 'linear'}}
184 for (int k = 0; k < argc; ++k) ++k;
185 #pragma omp for linear ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
186 for (int k = 0; k < argc; ++k) ++k;
187 #pragma omp for linear () // expected-error {{expected expression}}
188 for (int k = 0; k < argc; ++k) ++k;
189 #pragma omp for linear (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
190 for (int k = 0; k < argc; ++k) ++k;
191 #pragma omp for linear (argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
192 for (int k = 0; k < argc; ++k) ++k;
193 #pragma omp for linear (argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
194 for (int k = 0; k < argc; ++k) ++k;
195 #pragma omp for linear (argc)
196 for (int k = 0; k < argc; ++k) ++k;
197 #pragma omp for linear (S1) // expected-error {{'S1' does not refer to a value}}
198 for (int k = 0; k < argc; ++k) ++k;
199 // expected-error@+2 {{linear variable with incomplete type 'S1'}}
200 // expected-error@+1 {{argument of a linear clause should be of integral or pointer type, not 'S2'}}
201 #pragma omp for linear(a, b, k)
202 for (int k = 0; k < argc; ++k) ++k;
203 #pragma omp for linear (argv[1]) // expected-error {{expected variable name}}
204 for (int k = 0; k < argc; ++k) ++k;
205 // expected-error@+2 {{argument of a linear clause should be of integral or pointer type, not 'S4'}}
206 // expected-error@+1 {{argument of a linear clause should be of integral or pointer type, not 'S5'}}
207 #pragma omp for linear(e, g)
208 for (int k = 0; k < argc; ++k) ++k;
209 #pragma omp for linear(h, C::x) // expected-error 2 {{threadprivate or thread local variable cannot be linear}}
210 for (int k = 0; k < argc; ++k) ++k;
211 #pragma omp parallel
212 {
213 int i;
214 #pragma omp for linear(i)
215 for (int k = 0; k < argc; ++k) ++k;
216 #pragma omp for linear(i : 4)
217 for (int k = 0; k < argc; ++k) { ++k; i += 4; }
218 }
219 #pragma omp for linear(j)
220 for (int k = 0; k < argc; ++k) ++k;
221 #pragma omp for linear(i)
222 for (int k = 0; k < argc; ++k) ++k;
223 #pragma omp for linear(i) ordered(1) // expected-error {{'linear' clause cannot be specified along with 'ordered' clause with a parameter}}
224 for (int k = 0; k < argc; ++k) ++k;
225
226 foomain<int,char>(argc,argv); // expected-note {{n instantiation of function template specialization 'foomain<int, char>' requested here}}
227 return 0;
228 }
229
230