xref: /llvm-project/clang/test/OpenMP/target_parallel_for_linear_messages.cpp (revision e04483ee35ba28c089cbbcec97a96b67ce0a035e)
1 // RUN: %clang_cc1 -verify -fopenmp %s
2 
3 // RUN: %clang_cc1 -verify -fopenmp-simd %s
4 
5 extern int omp_default_mem_alloc;
6 namespace X {
7 int x;
8 };
9 
10 struct B {
11   static int ib; // expected-note {{'B::ib' declared here}}
12   static int bfoo() { return 8; }
13 };
14 
15 int bfoo() { return 4; }
16 
17 int z;
18 const int C1 = 1;
19 const int C2 = 2;
20 void test_linear_colons() {
21   int B = 0;
22 #pragma omp target parallel for linear(B : bfoo())
23   for (int i = 0; i < 10; ++i)
24     ;
25 // expected-error@+1 {{unexpected ':' in nested name specifier; did you mean '::'}}
26 #pragma omp target parallel for linear(B::ib : B : bfoo())
27   for (int i = 0; i < 10; ++i)
28     ;
29 // expected-error@+1 {{use of undeclared identifier 'ib'; did you mean 'B::ib'}}
30 #pragma omp target parallel for linear(B : ib)
31   for (int i = 0; i < 10; ++i)
32     ;
33 // expected-error@+1 {{unexpected ':' in nested name specifier; did you mean '::'?}}
34 #pragma omp target parallel for linear(z : B : ib)
35   for (int i = 0; i < 10; ++i)
36     ;
37 #pragma omp target parallel for linear(B : B::bfoo())
38   for (int i = 0; i < 10; ++i)
39     ;
40 #pragma omp target parallel for linear(X::x : ::z)
41   for (int i = 0; i < 10; ++i)
42     ;
43 #pragma omp target parallel for linear(B, ::z, X::x)
44   for (int i = 0; i < 10; ++i)
45     ;
46 #pragma omp target parallel for linear(::z)
47   for (int i = 0; i < 10; ++i)
48     ;
49 // expected-error@+1 {{expected variable name}}
50 #pragma omp target parallel for linear(B::bfoo())
51   for (int i = 0; i < 10; ++i)
52     ;
53 #pragma omp target parallel for linear(B::ib, B : C1 + C2)
54   for (int i = 0; i < 10; ++i)
55     ;
56 }
57 
58 template <int L, class T, class N>
59 T test_template(T *arr, N num) {
60   N i;
61   T sum = (T)0;
62   T ind2 = -num * L; // expected-note {{'ind2' defined here}}
63 // expected-error@+1 {{argument of a linear clause should be of integral or pointer type}}
64 #pragma omp target parallel for linear(ind2 : L)
65   for (i = 0; i < num; ++i) {
66     T cur = arr[(int)ind2];
67     ind2 += L;
68     sum += cur;
69   }
70   return T();
71 }
72 
73 template <int LEN>
74 int test_warn() {
75   int ind2 = 0;
76 // expected-warning@+1 {{zero linear step (ind2 should probably be const)}}
77 #pragma omp target parallel for linear(ind2 : LEN)
78   for (int i = 0; i < 100; i++) {
79     ind2 += LEN;
80   }
81   return ind2;
82 }
83 
84 struct S1; // expected-note 2 {{declared here}} expected-note 2 {{forward declaration of 'S1'}}
85 extern S1 a;
86 class S2 {
87   mutable int a;
88 
89 public:
90   S2() : a(0) {}
91 };
92 const S2 b; // expected-note 2 {{'b' defined here}}
93 const S2 ba[5];
94 class S3 {
95   int a;
96 
97 public:
98   S3() : a(0) {}
99 };
100 const S3 ca[5];
101 class S4 {
102   int a;
103   S4();
104 
105 public:
106   S4(int v) : a(v) {}
107 };
108 class S5 {
109   int a;
110   S5() : a(0) {}
111 
112 public:
113   S5(int v) : a(v) {}
114 };
115 
116 S3 h;
117 #pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
118 
119 template <class I, class C>
120 int foomain(I argc, C **argv) {
121   I e(4);
122   I g(5);
123   int i;
124   int &j = i;
125 #pragma omp target parallel for linear // expected-error {{expected '(' after 'linear'}}
126   for (int k = 0; k < argc; ++k)
127     ++k;
128 #pragma omp target parallel for linear( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
129   for (int k = 0; k < argc; ++k)
130     ++k;
131 #pragma omp target parallel for linear() // expected-error {{expected expression}}
132   for (int k = 0; k < argc; ++k)
133     ++k;
134 #pragma omp target parallel for linear(argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
135   for (int k = 0; k < argc; ++k)
136     ++k;
137 #pragma omp target parallel for linear(argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
138   for (int k = 0; k < argc; ++k)
139     ++k;
140 #pragma omp target parallel for linear(argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
141   for (int k = 0; k < argc; ++k)
142     ++k;
143 #pragma omp target parallel 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 '('}}
144   for (int k = 0; k < argc; ++k)
145     ++k;
146 #pragma omp target parallel for linear(S1) // expected-error {{'S1' does not refer to a value}}
147   for (int k = 0; k < argc; ++k)
148     ++k;
149 // expected-error@+2 {{linear variable with incomplete type 'S1'}}
150 // expected-error@+1 {{argument of a linear clause should be of integral or pointer type, not 'S2'}}
151 #pragma omp target parallel for linear(a, b : B::ib)
152   for (int k = 0; k < argc; ++k)
153     ++k;
154 #pragma omp target parallel for linear(argv[1]) // expected-error {{expected variable name}}
155   for (int k = 0; k < argc; ++k)
156     ++k;
157 #pragma omp target parallel for linear(e, g)
158   for (int k = 0; k < argc; ++k)
159     ++k;
160 #pragma omp target parallel for linear(h) // expected-error {{threadprivate or thread local variable cannot be linear}}
161   for (int k = 0; k < argc; ++k)
162     ++k;
163 #pragma omp target parallel for linear(i)
164   for (int k = 0; k < argc; ++k)
165     ++k;
166 #pragma omp parallel
167   {
168     int v = 0;
169     int i;
170 #pragma omp target parallel for linear(v : i)
171     for (int k = 0; k < argc; ++k) {
172       i = k;
173       v += i;
174     }
175   }
176 #pragma omp target parallel for linear(j)
177   for (int k = 0; k < argc; ++k)
178     ++k;
179   int v = 0;
180 #pragma omp target parallel for linear(v : j)
181   for (int k = 0; k < argc; ++k) {
182     ++k;
183     v += j;
184   }
185 #pragma omp target parallel for linear(i)
186   for (int k = 0; k < argc; ++k)
187     ++k;
188   return 0;
189 }
190 
191 namespace A {
192 double x;
193 #pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
194 }
195 namespace C {
196 using A::x;
197 }
198 
199 int main(int argc, char **argv) {
200   double darr[100];
201   // expected-note@+1 {{in instantiation of function template specialization 'test_template<-4, double, int>' requested here}}
202   test_template<-4>(darr, 4);
203   // expected-note@+1 {{in instantiation of function template specialization 'test_warn<0>' requested here}}
204   test_warn<0>();
205 
206   S4 e(4); // expected-note {{'e' defined here}}
207   S5 g(5); // expected-note {{'g' defined here}}
208   int i;
209   int &j = i;
210 #pragma omp target parallel for linear // expected-error {{expected '(' after 'linear'}}
211   for (int k = 0; k < argc; ++k)
212     ++k;
213 #pragma omp target parallel for linear( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
214   for (int k = 0; k < argc; ++k)
215     ++k;
216 #pragma omp target parallel for linear() // expected-error {{expected expression}}
217   for (int k = 0; k < argc; ++k)
218     ++k;
219 #pragma omp target parallel for linear(argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
220   for (int k = 0; k < argc; ++k)
221     ++k;
222 #pragma omp target parallel for linear(argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
223   for (int k = 0; k < argc; ++k)
224     ++k;
225 #pragma omp target parallel for linear(argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
226   for (int k = 0; k < argc; ++k)
227     ++k;
228 #pragma omp target parallel for linear(argc)
229   for (int k = 0; k < argc; ++k)
230     ++k;
231 #pragma omp target parallel for linear(S1) // expected-error {{'S1' does not refer to a value}}
232   for (int k = 0; k < argc; ++k)
233     ++k;
234 // expected-error@+2 {{linear variable with incomplete type 'S1'}}
235 // expected-error@+1 {{argument of a linear clause should be of integral or pointer type, not 'S2'}}
236 #pragma omp target parallel for linear(a, b)
237   for (int k = 0; k < argc; ++k)
238     ++k;
239 #pragma omp target parallel for linear(argv[1]) // expected-error {{expected variable name}}
240   for (int k = 0; k < argc; ++k)
241     ++k;
242 // expected-error@+2 {{argument of a linear clause should be of integral or pointer type, not 'S4'}}
243 // expected-error@+1 {{argument of a linear clause should be of integral or pointer type, not 'S5'}}
244 #pragma omp target parallel for linear(e, g)
245   for (int k = 0; k < argc; ++k)
246     ++k;
247 #pragma omp target parallel for linear(h, C::x) // expected-error 2 {{threadprivate or thread local variable cannot be linear}}
248   for (int k = 0; k < argc; ++k)
249     ++k;
250 #pragma omp parallel
251   {
252     int i;
253 #pragma omp target parallel for linear(i)
254     for (int k = 0; k < argc; ++k)
255       ++k;
256 #pragma omp target parallel for linear(i : 4)
257     for (int k = 0; k < argc; ++k) {
258       ++k;
259       i += 4;
260     }
261   }
262 #pragma omp target parallel for linear(j)
263   for (int k = 0; k < argc; ++k)
264     ++k;
265 #pragma omp target parallel for linear(i)
266   for (int k = 0; k < argc; ++k)
267     ++k;
268 
269   foomain<int, char>(argc, argv); // expected-note {{in instantiation of function template specialization 'foomain<int, char>' requested here}}
270   return 0;
271 }
272 
273