1 // RUN: %clang_cc1 -fsyntax-only -fopenmp=libiomp5 -verify %s
2
3 // expected-error@+1 {{unexpected OpenMP directive '#pragma omp parallel for'}}
4 #pragma omp parallel for
5
6 // expected-error@+1 {{unexpected OpenMP directive '#pragma omp parallel for'}}
7 #pragma omp parallel for foo
8
test_no_clause()9 void test_no_clause() {
10 int i;
11 #pragma omp parallel for
12 for (i = 0; i < 16; ++i)
13 ;
14
15 // expected-error@+2 {{statement after '#pragma omp parallel for' must be a for loop}}
16 #pragma omp parallel for
17 ++i;
18 }
19
test_branch_protected_scope()20 void test_branch_protected_scope() {
21 int i = 0;
22 L1:
23 ++i;
24
25 int x[24];
26
27 #pragma omp parallel for
28 for (i = 0; i < 16; ++i) {
29 if (i == 5)
30 goto L1; // expected-error {{use of undeclared label 'L1'}}
31 else if (i == 6)
32 return; // expected-error {{cannot return from OpenMP region}}
33 else if (i == 7)
34 goto L2;
35 else if (i == 8) {
36 L2:
37 x[i]++;
38 }
39 }
40
41 if (x[0] == 0)
42 goto L2; // expected-error {{use of undeclared label 'L2'}}
43 else if (x[1] == 1)
44 goto L1;
45 }
46
test_invalid_clause()47 void test_invalid_clause() {
48 int i;
49 // expected-warning@+1 {{extra tokens at the end of '#pragma omp parallel for' are ignored}}
50 #pragma omp parallel for foo bar
51 for (i = 0; i < 16; ++i)
52 ;
53 }
54
test_non_identifiers()55 void test_non_identifiers() {
56 int i, x;
57
58 // expected-warning@+1 {{extra tokens at the end of '#pragma omp parallel for' are ignored}}
59 #pragma omp parallel for;
60 for (i = 0; i < 16; ++i)
61 ;
62 // expected-error@+2 {{unexpected OpenMP clause 'linear' in directive '#pragma omp parallel for'}}
63 // expected-warning@+1 {{extra tokens at the end of '#pragma omp parallel for' are ignored}}
64 #pragma omp parallel for linear(x);
65 for (i = 0; i < 16; ++i)
66 ;
67
68 // expected-warning@+1 {{extra tokens at the end of '#pragma omp parallel for' are ignored}}
69 #pragma omp parallel for private(x);
70 for (i = 0; i < 16; ++i)
71 ;
72
73 // expected-warning@+1 {{extra tokens at the end of '#pragma omp parallel for' are ignored}}
74 #pragma omp parallel for, private(x);
75 for (i = 0; i < 16; ++i)
76 ;
77 }
78
79 extern int foo();
80
test_collapse()81 void test_collapse() {
82 int i;
83 // expected-error@+1 {{expected '('}}
84 #pragma omp parallel for collapse
85 for (i = 0; i < 16; ++i)
86 ;
87 // expected-error@+1 {{expected expression}} expected-error@+1 {{expected ')'}} expected-note@+1 {{to match this '('}}
88 #pragma omp parallel for collapse(
89 for (i = 0; i < 16; ++i)
90 ;
91 // expected-error@+1 {{expected expression}}
92 #pragma omp parallel for collapse()
93 for (i = 0; i < 16; ++i)
94 ;
95 // expected-error@+1 {{expected expression}} expected-error@+1 {{expected ')'}} expected-note@+1 {{to match this '('}}
96 #pragma omp parallel for collapse(,
97 for (i = 0; i < 16; ++i)
98 ;
99 // expected-error@+1 {{expected expression}} expected-error@+1 {{expected ')'}} expected-note@+1 {{to match this '('}}
100 #pragma omp parallel for collapse(, )
101 for (i = 0; i < 16; ++i)
102 ;
103 // expected-warning@+2 {{extra tokens at the end of '#pragma omp parallel for' are ignored}}
104 // expected-error@+1 {{expected '('}}
105 #pragma omp parallel for collapse 4)
106 for (i = 0; i < 16; ++i)
107 ;
108 // expected-error@+2 {{expected ')'}}
109 // expected-note@+1 {{to match this '('}} expected-note@+1 {{as specified in 'collapse' clause}}
110 #pragma omp parallel for collapse(4
111 for (i = 0; i < 16; ++i)
112 ; // expected-error {{expected 4 for loops after '#pragma omp parallel for', but found only 1}}
113 // expected-error@+2 {{expected ')'}}
114 // expected-note@+1 {{to match this '('}} expected-note@+1 {{as specified in 'collapse' clause}}
115 #pragma omp parallel for collapse(4,
116 for (i = 0; i < 16; ++i)
117 ; // expected-error {{expected 4 for loops after '#pragma omp parallel for', but found only 1}}
118 // expected-error@+2 {{expected ')'}}
119 // expected-note@+1 {{to match this '('}} expected-note@+1 {{as specified in 'collapse' clause}}
120 #pragma omp parallel for collapse(4, )
121 for (i = 0; i < 16; ++i)
122 ; // expected-error {{expected 4 for loops after '#pragma omp parallel for', but found only 1}}
123 // expected-note@+1 {{as specified in 'collapse' clause}}
124 #pragma omp parallel for collapse(4)
125 for (i = 0; i < 16; ++i)
126 ; // expected-error {{expected 4 for loops after '#pragma omp parallel for', but found only 1}}
127 // expected-error@+2 {{expected ')'}}
128 // expected-note@+1 {{to match this '('}} expected-note@+1 {{as specified in 'collapse' clause}}
129 #pragma omp parallel for collapse(4 4)
130 for (i = 0; i < 16; ++i)
131 ; // expected-error {{expected 4 for loops after '#pragma omp parallel for', but found only 1}}
132 // expected-error@+2 {{expected ')'}}
133 // expected-note@+1 {{to match this '('}} expected-note@+1 {{as specified in 'collapse' clause}}
134 #pragma omp parallel for collapse(4, , 4)
135 for (i = 0; i < 16; ++i)
136 ; // expected-error {{expected 4 for loops after '#pragma omp parallel for', but found only 1}}
137 #pragma omp parallel for collapse(4)
138 for (int i1 = 0; i1 < 16; ++i1)
139 for (int i2 = 0; i2 < 16; ++i2)
140 for (int i3 = 0; i3 < 16; ++i3)
141 for (int i4 = 0; i4 < 16; ++i4)
142 foo();
143 // expected-error@+2 {{expected ')'}}
144 // expected-note@+1 {{to match this '('}} expected-note@+1 {{as specified in 'collapse' clause}}
145 #pragma omp parallel for collapse(4, 8)
146 for (i = 0; i < 16; ++i)
147 ; // expected-error {{expected 4 for loops after '#pragma omp parallel for', but found only 1}}
148 // expected-error@+1 {{expression is not an integer constant expression}}
149 #pragma omp parallel for collapse(2.5)
150 for (i = 0; i < 16; ++i)
151 ;
152 // expected-error@+1 {{expression is not an integer constant expression}}
153 #pragma omp parallel for collapse(foo())
154 for (i = 0; i < 16; ++i)
155 ;
156 // expected-error@+1 {{argument to 'collapse' clause must be a positive integer value}}
157 #pragma omp parallel for collapse(-5)
158 for (i = 0; i < 16; ++i)
159 ;
160 // expected-error@+1 {{argument to 'collapse' clause must be a positive integer value}}
161 #pragma omp parallel for collapse(0)
162 for (i = 0; i < 16; ++i)
163 ;
164 // expected-error@+1 {{argument to 'collapse' clause must be a positive integer value}}
165 #pragma omp parallel for collapse(5 - 5)
166 for (i = 0; i < 16; ++i)
167 ;
168 // expected-note@+1 {{defined as firstprivate}}
169 #pragma omp parallel for collapse(2) firstprivate(i)
170 for (i = 0; i < 16; ++i)
171 // expected-note@+1 {{variable with automatic storage duration is predetermined as private; perhaps you forget to enclose 'omp for' directive into a parallel or another task region?}}
172 for (int j = 0; j < 16; ++j)
173 // expected-error@+3 {{reduction variable must be shared}}
174 // expected-error@+2 {{private variable cannot be reduction}}
175 // expected-error@+1 {{region cannot be closely nested inside 'parallel for' region; perhaps you forget to enclose 'omp for' directive into a parallel region?}}
176 #pragma omp for reduction(+ : i, j)
177 for (int k = 0; k < 16; ++k)
178 i += j;
179 }
180
test_private()181 void test_private() {
182 int i;
183 // expected-error@+2 {{expected expression}}
184 // expected-error@+1 {{expected ')'}} expected-note@+1 {{to match this '('}}
185 #pragma omp parallel for private(
186 for (i = 0; i < 16; ++i)
187 ;
188 // expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
189 // expected-error@+1 2 {{expected expression}}
190 #pragma omp parallel for private(,
191 for (i = 0; i < 16; ++i)
192 ;
193 // expected-error@+1 2 {{expected expression}}
194 #pragma omp parallel for private(, )
195 for (i = 0; i < 16; ++i)
196 ;
197 // expected-error@+1 {{expected expression}}
198 #pragma omp parallel for private()
199 for (i = 0; i < 16; ++i)
200 ;
201 // expected-error@+1 {{expected expression}}
202 #pragma omp parallel for private(int)
203 for (i = 0; i < 16; ++i)
204 ;
205 // expected-error@+1 {{expected variable name}}
206 #pragma omp parallel for private(0)
207 for (i = 0; i < 16; ++i)
208 ;
209
210 int x, y, z;
211 #pragma omp parallel for private(x)
212 for (i = 0; i < 16; ++i)
213 ;
214 #pragma omp parallel for private(x, y)
215 for (i = 0; i < 16; ++i)
216 ;
217 #pragma omp parallel for private(x, y, z)
218 for (i = 0; i < 16; ++i) {
219 x = y * i + z;
220 }
221 }
222
test_lastprivate()223 void test_lastprivate() {
224 int i;
225 // expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
226 // expected-error@+1 {{expected expression}}
227 #pragma omp parallel for lastprivate(
228 for (i = 0; i < 16; ++i)
229 ;
230
231 // expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
232 // expected-error@+1 2 {{expected expression}}
233 #pragma omp parallel for lastprivate(,
234 for (i = 0; i < 16; ++i)
235 ;
236 // expected-error@+1 2 {{expected expression}}
237 #pragma omp parallel for lastprivate(, )
238 for (i = 0; i < 16; ++i)
239 ;
240 // expected-error@+1 {{expected expression}}
241 #pragma omp parallel for lastprivate()
242 for (i = 0; i < 16; ++i)
243 ;
244 // expected-error@+1 {{expected expression}}
245 #pragma omp parallel for lastprivate(int)
246 for (i = 0; i < 16; ++i)
247 ;
248 // expected-error@+1 {{expected variable name}}
249 #pragma omp parallel for lastprivate(0)
250 for (i = 0; i < 16; ++i)
251 ;
252
253 int x, y, z;
254 #pragma omp parallel for lastprivate(x)
255 for (i = 0; i < 16; ++i)
256 ;
257 #pragma omp parallel for lastprivate(x, y)
258 for (i = 0; i < 16; ++i)
259 ;
260 #pragma omp parallel for lastprivate(x, y, z)
261 for (i = 0; i < 16; ++i)
262 ;
263 }
264
test_firstprivate()265 void test_firstprivate() {
266 int i;
267 // expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
268 // expected-error@+1 {{expected expression}}
269 #pragma omp parallel for firstprivate(
270 for (i = 0; i < 16; ++i)
271 ;
272
273 // expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
274 // expected-error@+1 2 {{expected expression}}
275 #pragma omp parallel for firstprivate(,
276 for (i = 0; i < 16; ++i)
277 ;
278 // expected-error@+1 2 {{expected expression}}
279 #pragma omp parallel for firstprivate(, )
280 for (i = 0; i < 16; ++i)
281 ;
282 // expected-error@+1 {{expected expression}}
283 #pragma omp parallel for firstprivate()
284 for (i = 0; i < 16; ++i)
285 ;
286 // expected-error@+1 {{expected expression}}
287 #pragma omp parallel for firstprivate(int)
288 for (i = 0; i < 16; ++i)
289 ;
290 // expected-error@+1 {{expected variable name}}
291 #pragma omp parallel for firstprivate(0)
292 for (i = 0; i < 16; ++i)
293 ;
294
295 int x, y, z;
296 #pragma omp parallel for lastprivate(x) firstprivate(x)
297 for (i = 0; i < 16; ++i)
298 ;
299 #pragma omp parallel for lastprivate(x, y) firstprivate(x, y)
300 for (i = 0; i < 16; ++i)
301 ;
302 #pragma omp parallel for lastprivate(x, y, z) firstprivate(x, y, z)
303 for (i = 0; i < 16; ++i)
304 ;
305 }
306
test_loop_messages()307 void test_loop_messages() {
308 float a[100], b[100], c[100];
309 // expected-error@+2 {{variable must be of integer or pointer type}}
310 #pragma omp parallel for
311 for (float fi = 0; fi < 10.0; fi++) {
312 c[(int)fi] = a[(int)fi] + b[(int)fi];
313 }
314 // expected-error@+2 {{variable must be of integer or pointer type}}
315 #pragma omp parallel for
316 for (double fi = 0; fi < 10.0; fi++) {
317 c[(int)fi] = a[(int)fi] + b[(int)fi];
318 }
319 }
320
321