1 // RUN: %clang_cc1 -verify -fopenmp %s
2 
3 // RUN: %clang_cc1 -verify -fopenmp-simd %s
4 
5 namespace X {
6 int x;
7 };
8 
9 struct B {
10   static int ib; // expected-note {{'B::ib' declared here}}
11   static int bfoo() { return 8; }
12 };
13 
14 int bfoo() { return 4; }
15 
16 int z;
17 const int C1 = 1;
18 const int C2 = 2;
19 void test_linear_colons() {
20   int B = 0;
21 #pragma omp parallel for linear(B : bfoo())
22   for (int i = 0; i < 10; ++i)
23     ;
24 // expected-error@+1 {{unexpected ':' in nested name specifier; did you mean '::'}}
25 #pragma omp parallel for linear(B::ib : B : bfoo())
26   for (int i = 0; i < 10; ++i)
27     ;
28 // expected-error@+1 {{use of undeclared identifier 'ib'; did you mean 'B::ib'}}
29 #pragma omp parallel for linear(B : ib)
30   for (int i = 0; i < 10; ++i)
31     ;
32 // expected-error@+1 {{unexpected ':' in nested name specifier; did you mean '::'?}}
33 #pragma omp parallel for linear(z : B : ib)
34   for (int i = 0; i < 10; ++i)
35     ;
36 #pragma omp parallel for linear(B : B::bfoo())
37   for (int i = 0; i < 10; ++i)
38     ;
39 #pragma omp parallel for linear(X::x : ::z)
40   for (int i = 0; i < 10; ++i)
41     ;
42 #pragma omp parallel for linear(B, ::z, X::x)
43   for (int i = 0; i < 10; ++i)
44     ;
45 #pragma omp parallel for linear(::z)
46   for (int i = 0; i < 10; ++i)
47     ;
48 // expected-error@+1 {{expected variable name}}
49 #pragma omp parallel for linear(B::bfoo())
50   for (int i = 0; i < 10; ++i)
51     ;
52 #pragma omp parallel for linear(B::ib, B : C1 + C2)
53   for (int i = 0; i < 10; ++i)
54     ;
55 }
56 
57 template <int L, class T, class N>
58 T test_template(T *arr, N num) {
59   N i;
60   T sum = (T)0;
61   T ind2 = -num * L; // expected-note {{'ind2' defined here}}
62 // expected-error@+1 {{argument of a linear clause should be of integral or pointer type}}
63 #pragma omp parallel for linear(ind2 : L)
64   for (i = 0; i < num; ++i) {
65     T cur = arr[(int)ind2];
66     ind2 += L;
67     sum += cur;
68   }
69   return T();
70 }
71 
72 template <int LEN>
73 int test_warn() {
74   int ind2 = 0;
75 // expected-warning@+1 {{zero linear step (ind2 should probably be const)}}
76 #pragma omp parallel for linear(ind2 : LEN)
77   for (int i = 0; i < 100; i++) {
78     ind2 += LEN;
79   }
80   return ind2;
81 }
82 
83 struct S1; // expected-note 2 {{declared here}} expected-note 2 {{forward declaration of 'S1'}}
84 extern S1 a;
85 class S2 {
86   mutable int a;
87 
88 public:
89   S2() : a(0) {}
90 };
91 const S2 b; // expected-note 2 {{'b' defined here}}
92 const S2 ba[5];
93 class S3 {
94   int a;
95 
96 public:
97   S3() : a(0) {}
98 };
99 const S3 ca[5];
100 class S4 {
101   int a;
102   S4();
103 
104 public:
105   S4(int v) : a(v) {}
106 };
107 class S5 {
108   int a;
109   S5() : a(0) {}
110 
111 public:
112   S5(int v) : a(v) {}
113 };
114 
115 S3 h;
116 #pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
117 
118 template <class I, class C>
119 int foomain(I argc, C **argv) {
120   I e(4);
121   I g(5);
122   int i;
123   int &j = i;
124 #pragma omp parallel for linear // expected-error {{expected '(' after 'linear'}}
125   for (int k = 0; k < argc; ++k)
126     ++k;
127 #pragma omp parallel for linear( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
128   for (int k = 0; k < argc; ++k)
129     ++k;
130 #pragma omp parallel for linear() // expected-error {{expected expression}}
131   for (int k = 0; k < argc; ++k)
132     ++k;
133 #pragma omp parallel for linear(argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
134   for (int k = 0; k < argc; ++k)
135     ++k;
136 #pragma omp parallel for linear(argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
137   for (int k = 0; k < argc; ++k)
138     ++k;
139 #pragma omp parallel for linear(argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
140   for (int k = 0; k < argc; ++k)
141     ++k;
142 #pragma omp parallel for linear(argc : 5)
143   for (int k = 0; k < argc; ++k)
144     ++k;
145 #pragma omp parallel for linear(S1) // expected-error {{'S1' does not refer to a value}}
146   for (int k = 0; k < argc; ++k)
147     ++k;
148 // expected-error@+2 {{linear variable with incomplete type 'S1'}}
149 // expected-error@+1 {{const-qualified variable cannot be linear}}
150 #pragma omp parallel for linear(a, b : B::ib)
151   for (int k = 0; k < argc; ++k)
152     ++k;
153 #pragma omp parallel for linear(argv[1]) // expected-error {{expected variable name}}
154   for (int k = 0; k < argc; ++k)
155     ++k;
156 #pragma omp parallel for linear(e, g)
157   for (int k = 0; k < argc; ++k)
158     ++k;
159 #pragma omp parallel for linear(h) // expected-error {{threadprivate or thread local variable cannot be linear}}
160   for (int k = 0; k < argc; ++k)
161     ++k;
162 #pragma omp parallel for linear(i)
163   for (int k = 0; k < argc; ++k)
164     ++k;
165 #pragma omp parallel
166   {
167     int v = 0;
168     int i;
169 #pragma omp parallel for linear(v : i)
170     for (int k = 0; k < argc; ++k) {
171       i = k;
172       v += i;
173     }
174   }
175 #pragma omp parallel for linear(j)
176   for (int k = 0; k < argc; ++k)
177     ++k;
178   int v = 0;
179 #pragma omp parallel for linear(v : j)
180   for (int k = 0; k < argc; ++k) {
181     ++k;
182     v += j;
183   }
184 #pragma omp parallel for linear(i)
185   for (int k = 0; k < argc; ++k)
186     ++k;
187   return 0;
188 }
189 
190 namespace A {
191 double x;
192 #pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
193 }
194 namespace C {
195 using A::x;
196 }
197 
198 int main(int argc, char **argv) {
199   double darr[100];
200   // expected-note@+1 {{in instantiation of function template specialization 'test_template<-4, double, int>' requested here}}
201   test_template<-4>(darr, 4);
202   // expected-note@+1 {{in instantiation of function template specialization 'test_warn<0>' requested here}}
203   test_warn<0>();
204 
205   S4 e(4); // expected-note {{'e' defined here}}
206   S5 g(5); // expected-note {{'g' defined here}}
207   int i;
208   int &j = i;
209 #pragma omp parallel for linear // expected-error {{expected '(' after 'linear'}}
210   for (int k = 0; k < argc; ++k)
211     ++k;
212 #pragma omp parallel for linear( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
213   for (int k = 0; k < argc; ++k)
214     ++k;
215 #pragma omp parallel for linear() // expected-error {{expected expression}}
216   for (int k = 0; k < argc; ++k)
217     ++k;
218 #pragma omp parallel for linear(argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
219   for (int k = 0; k < argc; ++k)
220     ++k;
221 #pragma omp parallel for linear(argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
222   for (int k = 0; k < argc; ++k)
223     ++k;
224 #pragma omp parallel for linear(argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
225   for (int k = 0; k < argc; ++k)
226     ++k;
227 #pragma omp parallel for linear(argc)
228   for (int k = 0; k < argc; ++k)
229     ++k;
230 #pragma omp parallel for linear(S1) // expected-error {{'S1' does not refer to a value}}
231   for (int k = 0; k < argc; ++k)
232     ++k;
233 // expected-error@+2 {{linear variable with incomplete type 'S1'}}
234 // expected-error@+1 {{const-qualified variable cannot be linear}}
235 #pragma omp parallel for linear(a, b)
236   for (int k = 0; k < argc; ++k)
237     ++k;
238 #pragma omp parallel for linear(argv[1]) // expected-error {{expected variable name}}
239   for (int k = 0; k < argc; ++k)
240     ++k;
241 // expected-error@+2 {{argument of a linear clause should be of integral or pointer type, not 'S4'}}
242 // expected-error@+1 {{argument of a linear clause should be of integral or pointer type, not 'S5'}}
243 #pragma omp parallel for linear(e, g)
244   for (int k = 0; k < argc; ++k)
245     ++k;
246 #pragma omp parallel for linear(h, C::x) // expected-error 2 {{threadprivate or thread local variable cannot be linear}}
247   for (int k = 0; k < argc; ++k)
248     ++k;
249 #pragma omp parallel
250   {
251     int i;
252 #pragma omp parallel for linear(i)
253     for (int k = 0; k < argc; ++k)
254       ++k;
255 #pragma omp parallel for linear(i : 4)
256     for (int k = 0; k < argc; ++k) {
257       ++k;
258       i += 4;
259     }
260   }
261 #pragma omp parallel for linear(j)
262   for (int k = 0; k < argc; ++k)
263     ++k;
264 #pragma omp parallel for linear(i)
265   for (int k = 0; k < argc; ++k)
266     ++k;
267 
268   foomain<int, char>(argc, argv); // expected-note {{in instantiation of function template specialization 'foomain<int, char>' requested here}}
269   return 0;
270 }
271 
272