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1 // RUN: %clang_cc1 -verify -fopenmp %s
2 
3 namespace X {
4   int x;
5 };
6 
7 struct B {
8   static int ib; // expected-note {{'B::ib' declared here}}
bfooB9   static int bfoo() { return 8; }
10 };
11 
bfoo()12 int bfoo() { return 4; }
13 
14 int z;
15 const int C1 = 1;
16 const int C2 = 2;
test_linear_colons()17 void test_linear_colons()
18 {
19   int B = 0;
20   #pragma omp for linear(B:bfoo())
21   for (int i = 0; i < 10; ++i) ;
22   // expected-error@+1 {{unexpected ':' in nested name specifier; did you mean '::'}}
23   #pragma omp for linear(B::ib:B:bfoo())
24   for (int i = 0; i < 10; ++i) ;
25   // expected-error@+1 {{use of undeclared identifier 'ib'; did you mean 'B::ib'}}
26   #pragma omp for linear(B:ib)
27   for (int i = 0; i < 10; ++i) ;
28   // expected-error@+1 {{unexpected ':' in nested name specifier; did you mean '::'?}}
29   #pragma omp for linear(z:B:ib)
30   for (int i = 0; i < 10; ++i) ;
31   #pragma omp for linear(B:B::bfoo())
32   for (int i = 0; i < 10; ++i) ;
33   #pragma omp for linear(X::x : ::z)
34   for (int i = 0; i < 10; ++i) ;
35   #pragma omp for linear(B,::z, X::x)
36   for (int i = 0; i < 10; ++i) ;
37   #pragma omp for linear(::z)
38   for (int i = 0; i < 10; ++i) ;
39   // expected-error@+1 {{expected variable name}}
40   #pragma omp for linear(B::bfoo())
41   for (int i = 0; i < 10; ++i) ;
42   #pragma omp for linear(B::ib,B:C1+C2)
43   for (int i = 0; i < 10; ++i) ;
44 }
45 
test_template(T * arr,N num)46 template<int L, class T, class N> T test_template(T* arr, N num) {
47   N i;
48   T sum = (T)0;
49   T ind2 = - num * L; // expected-note {{'ind2' defined here}}
50   // expected-error@+1 {{argument of a linear clause should be of integral or pointer type}}
51 #pragma omp for linear(ind2:L)
52   for (i = 0; i < num; ++i) {
53     T cur = arr[(int)ind2];
54     ind2 += L;
55     sum += cur;
56   }
57   return T();
58 }
59 
test_warn()60 template<int LEN> int test_warn() {
61   int ind2 = 0;
62   // expected-warning@+1 {{zero linear step (ind2 should probably be const)}}
63   #pragma omp for linear(ind2:LEN)
64   for (int i = 0; i < 100; i++) {
65     ind2 += LEN;
66   }
67   return ind2;
68 }
69 
70 struct S1; // expected-note 2 {{declared here}} expected-note 2 {{forward declaration of 'S1'}}
71 extern S1 a;
72 class S2 {
73   mutable int a;
74 public:
S2()75   S2():a(0) { }
76 };
77 const S2 b; // expected-note 2 {{'b' defined here}}
78 const S2 ba[5];
79 class S3 {
80   int a;
81 public:
S3()82   S3():a(0) { }
83 };
84 const S3 ca[5];
85 class S4 {
86   int a;
87   S4();
88 public:
S4(int v)89   S4(int v):a(v) { }
90 };
91 class S5 {
92   int a;
S5()93   S5():a(0) {}
94 public:
S5(int v)95   S5(int v):a(v) { }
96 };
97 
98 S3 h;
99 #pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
100 
foomain(I argc,C ** argv)101 template<class I, class C> int foomain(I argc, C **argv) {
102   I e(4);
103   I g(5);
104   int i;
105   int &j = i;
106   #pragma omp for linear // expected-error {{expected '(' after 'linear'}}
107   for (int k = 0; k < argc; ++k) ++k;
108   #pragma omp for linear ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
109   for (int k = 0; k < argc; ++k) ++k;
110   #pragma omp for linear () // expected-error {{expected expression}}
111   for (int k = 0; k < argc; ++k) ++k;
112   #pragma omp for linear (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
113   for (int k = 0; k < argc; ++k) ++k;
114   #pragma omp for linear (argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
115   for (int k = 0; k < argc; ++k) ++k;
116   #pragma omp for linear (argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
117   for (int k = 0; k < argc; ++k) ++k;
118   #pragma omp for linear (argc : 5)
119   for (int k = 0; k < argc; ++k) ++k;
120   #pragma omp for linear (S1) // expected-error {{'S1' does not refer to a value}}
121   for (int k = 0; k < argc; ++k) ++k;
122   // expected-error@+2 {{linear variable with incomplete type 'S1'}}
123   // expected-error@+1 {{const-qualified variable cannot be linear}}
124   #pragma omp for linear (a, b:B::ib)
125   for (int k = 0; k < argc; ++k) ++k;
126   #pragma omp for linear (argv[1]) // expected-error {{expected variable name}}
127   for (int k = 0; k < argc; ++k) ++k;
128   #pragma omp for linear(e, g)
129   for (int k = 0; k < argc; ++k) ++k;
130   #pragma omp for linear(h) // expected-error {{threadprivate or thread local variable cannot be linear}}
131   for (int k = 0; k < argc; ++k) ++k;
132   #pragma omp for linear(i)
133   for (int k = 0; k < argc; ++k) ++k;
134   #pragma omp parallel
135   {
136     int v = 0;
137     int i;
138     #pragma omp for linear(v:i)
139     for (int k = 0; k < argc; ++k) { i = k; v += i; }
140   }
141   #pragma omp for linear(j)
142   for (int k = 0; k < argc; ++k) ++k;
143   int v = 0;
144   #pragma omp for linear(v:j)
145   for (int k = 0; k < argc; ++k) { ++k; v += j; }
146   #pragma omp for linear(i)
147   for (int k = 0; k < argc; ++k) ++k;
148   #pragma omp for linear(i) ordered(1) // expected-error {{'linear' clause cannot be specified along with 'ordered' clause with a parameter}}
149   for (int k = 0; k < argc; ++k) ++k;
150   return 0;
151 }
152 
153 namespace A {
154 double x;
155 #pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
156 }
157 namespace C {
158 using A::x;
159 }
160 
main(int argc,char ** argv)161 int main(int argc, char **argv) {
162   double darr[100];
163   // expected-note@+1 {{in instantiation of function template specialization 'test_template<-4, double, int>' requested here}}
164   test_template<-4>(darr, 4);
165   // expected-note@+1 {{in instantiation of function template specialization 'test_warn<0>' requested here}}
166   test_warn<0>();
167 
168   S4 e(4); // expected-note {{'e' defined here}}
169   S5 g(5); // expected-note {{'g' defined here}}
170   int i;
171   int &j = i;
172   #pragma omp for linear // expected-error {{expected '(' after 'linear'}}
173   for (int k = 0; k < argc; ++k) ++k;
174   #pragma omp for linear ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
175   for (int k = 0; k < argc; ++k) ++k;
176   #pragma omp for linear () // expected-error {{expected expression}}
177   for (int k = 0; k < argc; ++k) ++k;
178   #pragma omp for linear (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
179   for (int k = 0; k < argc; ++k) ++k;
180   #pragma omp for linear (argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
181   for (int k = 0; k < argc; ++k) ++k;
182   #pragma omp for linear (argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
183   for (int k = 0; k < argc; ++k) ++k;
184   #pragma omp for linear (argc)
185   for (int k = 0; k < argc; ++k) ++k;
186   #pragma omp for linear (S1) // expected-error {{'S1' does not refer to a value}}
187   for (int k = 0; k < argc; ++k) ++k;
188   // expected-error@+2 {{linear variable with incomplete type 'S1'}}
189   // expected-error@+1 {{const-qualified variable cannot be linear}}
190   #pragma omp for linear(a, b)
191   for (int k = 0; k < argc; ++k) ++k;
192   #pragma omp for linear (argv[1]) // expected-error {{expected variable name}}
193   for (int k = 0; k < argc; ++k) ++k;
194   // expected-error@+2 {{argument of a linear clause should be of integral or pointer type, not 'S4'}}
195   // expected-error@+1 {{argument of a linear clause should be of integral or pointer type, not 'S5'}}
196   #pragma omp for linear(e, g)
197   for (int k = 0; k < argc; ++k) ++k;
198   #pragma omp for linear(h, C::x) // expected-error 2 {{threadprivate or thread local variable cannot be linear}}
199   for (int k = 0; k < argc; ++k) ++k;
200   #pragma omp parallel
201   {
202     int i;
203     #pragma omp for linear(i)
204     for (int k = 0; k < argc; ++k) ++k;
205     #pragma omp for linear(i : 4)
206     for (int k = 0; k < argc; ++k) { ++k; i += 4; }
207   }
208   #pragma omp for linear(j)
209   for (int k = 0; k < argc; ++k) ++k;
210   #pragma omp for linear(i)
211   for (int k = 0; k < argc; ++k) ++k;
212   #pragma omp for linear(i) ordered(1) // expected-error {{'linear' clause cannot be specified along with 'ordered' clause with a parameter}}
213   for (int k = 0; k < argc; ++k) ++k;
214 
215   foomain<int,char>(argc,argv); // expected-note {{n instantiation of function template specialization 'foomain<int, char>' requested here}}
216   return 0;
217 }
218 
219