1 // RUN: %clang_cc1 -verify -fopenmp -fsyntax-only %s -Wuninitialized
2 // RUN: %clang_cc1 -verify -fopenmp -std=c++11 -fsyntax-only %s -Wuninitialized
3 // RUN: %clang_cc1 -verify=expected,omp52 -fopenmp -fopenmp-version=52 -fsyntax-only %s -Wuninitialized
4 // RUN: %clang_cc1 -verify=expected,omp52 -fopenmp -fopenmp-version=52 -std=c++11 -fsyntax-only %s -Wuninitialized
5 // RUN: %clang_cc1 -verify -fopenmp-simd -fsyntax-only %s -Wuninitialized
6 // RUN: %clang_cc1 -verify -fopenmp-simd -std=c++11 -fsyntax-only %s -Wuninitialized
7 // RUN: %clang_cc1 -verify=expected,omp52 -fopenmp-simd -fopenmp-version=52 -fsyntax-only %s -Wuninitialized
8 // RUN: %clang_cc1 -verify=expected,omp52 -fopenmp-simd -fopenmp-version=52 -std=c++11 -fsyntax-only %s -Wuninitialized
9
10 typedef void **omp_allocator_handle_t;
11 extern const omp_allocator_handle_t omp_null_allocator;
12 extern const omp_allocator_handle_t omp_default_mem_alloc;
13 extern const omp_allocator_handle_t omp_large_cap_mem_alloc;
14 extern const omp_allocator_handle_t omp_const_mem_alloc;
15 extern const omp_allocator_handle_t omp_high_bw_mem_alloc;
16 extern const omp_allocator_handle_t omp_low_lat_mem_alloc;
17 extern const omp_allocator_handle_t omp_cgroup_mem_alloc;
18 extern const omp_allocator_handle_t omp_pteam_mem_alloc;
19 extern const omp_allocator_handle_t omp_thread_mem_alloc;
20
xxx(int argc)21 void xxx(int argc) {
22 int fp; // expected-note {{initialize the variable 'fp' to silence this warning}}
23 [[omp::directive(taskloop reduction(+:fp))]] // expected-warning {{variable 'fp' is uninitialized when used here}}
24 for (int i = 0; i < 10; ++i)
25 ;
26 }
27
foo()28 void foo() {
29 }
30
foobool(int argc)31 bool foobool(int argc) {
32 return argc;
33 }
34
foobar(int & ref)35 void foobar(int &ref) {
36 [[omp::directive(taskloop reduction(+:ref))]]
37 for (int i = 0; i < 10; ++i)
38 foo();
39 }
40
41 struct S1; // expected-note {{declared here}} expected-note 4 {{forward declaration of 'S1'}}
42 extern S1 a;
43 class S2 {
44 mutable int a;
operator +(const S2 & arg)45 S2 &operator+(const S2 &arg) { return (*this); } // expected-note 3 {{implicitly declared private here}}
46
47 public:
S2()48 S2() : a(0) {}
S2(S2 & s2)49 S2(S2 &s2) : a(s2.a) {}
50 static float S2s; // expected-note 2 {{static data member is predetermined as shared}}
51 static const float S2sc; // expected-note 2 {{'S2sc' declared here}}
52 };
53 const float S2::S2sc = 0;
54 S2 b; // expected-note 3 {{'b' defined here}}
55 const S2 ba[5]; // expected-note 2 {{'ba' defined here}}
56 class S3 {
57 int a;
58
59 public:
60 int b;
S3()61 S3() : a(0) {}
S3(const S3 & s3)62 S3(const S3 &s3) : a(s3.a) {}
operator +(const S3 & arg1)63 S3 operator+(const S3 &arg1) { return arg1; }
64 };
operator +(const S3 & arg1,const S3 & arg2)65 int operator+(const S3 &arg1, const S3 &arg2) { return 5; }
66 S3 c; // expected-note 3 {{'c' defined here}}
67 const S3 ca[5]; // expected-note 2 {{'ca' defined here}}
68 extern const int f; // expected-note 4 {{'f' declared here}}
69 class S4 {
70 int a;
71 S4(); // expected-note {{implicitly declared private here}}
72 S4(const S4 &s4);
operator +(const S4 & arg)73 S4 &operator+(const S4 &arg) { return (*this); }
74
75 public:
S4(int v)76 S4(int v) : a(v) {}
77 };
operator &=(S4 & arg1,S4 & arg2)78 S4 &operator&=(S4 &arg1, S4 &arg2) { return arg1; }
79 class S5 {
80 int a:32;
S5()81 S5() : a(0) {} // expected-note {{implicitly declared private here}}
S5(const S5 & s5)82 S5(const S5 &s5) : a(s5.a) {}
83 S5 &operator+(const S5 &arg);
84
85 public:
S5(int v)86 S5(int v) : a(v) {}
87 };
88 class S6 { // expected-note 3 {{candidate function (the implicit copy assignment operator) not viable: no known conversion from 'int' to 'const S6' for 1st argument}}
89 #if __cplusplus >= 201103L // C++11 or later
90 // expected-note@-2 3 {{candidate function (the implicit move assignment operator) not viable}}
91 #endif
92 int a;
93
94 public:
S6()95 S6() : a(6) {}
operator int()96 operator int() { return 6; }
97 } o;
98
99 struct S7 {
100 int a: 32;
S7S7101 S7() {
102 [[omp::directive(taskloop reduction(+:a))]] // expected-error {{expected addressable reduction item for the task-based directives}}
103 for (int i = 0; i < 10; ++i)
104 ++a;
105 }
106 };
107
108 S3 h, k;
109 [[omp::directive(threadprivate(h))]]; // expected-note 2 {{defined as threadprivate or thread local}}
110
111 template <class T> // expected-note {{declared here}}
tmain(T argc)112 T tmain(T argc) {
113 const T d = T(); // expected-note 4 {{'d' defined here}}
114 const T da[5] = {T()}; // expected-note 2 {{'da' defined here}}
115 T qa[5] = {T()};
116 T i, z;
117 T &j = i; // expected-note 4 {{'j' defined here}}
118 S3 &p = k; // expected-note 2 {{'p' defined here}}
119 const T &r = da[(int)i]; // expected-note 2 {{'r' defined here}}
120 T &q = qa[(int)i]; // expected-note 2 {{'q' defined here}}
121 T fl;
122 [[omp::directive(taskloop reduction)]] // expected-error {{expected '(' after 'reduction'}}
123 for (int i = 0; i < 10; ++i)
124 foo();
125 [[omp::directive(taskloop reduction +)]] // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp taskloop' are ignored}}
126 for (int i = 0; i < 10; ++i)
127 foo();
128 [[omp::directive(taskloop reduction())]] // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
129 for (int i = 0; i < 10; ++i)
130 foo();
131 [[omp::directive(taskloop reduction(*))]] // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
132 for (int i = 0; i < 10; ++i)
133 foo();
134 [[omp::directive(taskloop reduction(\))]] // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
135 for (int i = 0; i < 10; ++i)
136 foo();
137 [[omp::directive(taskloop reduction(foo : argc))]] //expected-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max' or declare reduction for type 'float'}} expected-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max' or declare reduction for type 'int'}}
138 for (int i = 0; i < 10; ++i)
139 foo();
140 [[omp::directive(taskloop reduction(^ : T))]] // expected-error {{'T' does not refer to a value}}
141 for (int i = 0; i < 10; ++i)
142 foo();
143 [[omp::directive(taskloop reduction(+ : z, a, b, c, d, f))]] // expected-error {{a reduction list item with incomplete type 'S1'}} expected-error 3 {{const-qualified variable cannot be reduction}} expected-error 2 {{'operator+' is a private member of 'S2'}}
144 for (int i = 0; i < 10; ++i)
145 foo();
146 [[omp::directive(taskloop reduction(min : a, b, c, d, f))]] // expected-error {{a reduction list item with incomplete type 'S1'}} expected-error 4 {{arguments of OpenMP clause 'reduction' for 'min' or 'max' must be of arithmetic type}} expected-error 3 {{const-qualified variable cannot be reduction}}
147 for (int i = 0; i < 10; ++i)
148 foo();
149 [[omp::directive(taskloop reduction(max : h.b))]] // expected-error {{expected variable name, array element or array section}}
150 for (int i = 0; i < 10; ++i)
151 foo();
152 [[omp::directive(taskloop reduction(+ : ba))]] // expected-error {{const-qualified variable cannot be reduction}}
153 for (int i = 0; i < 10; ++i)
154 foo();
155 [[omp::directive(taskloop reduction(* : ca))]] // expected-error {{const-qualified variable cannot be reduction}}
156 for (int i = 0; i < 10; ++i)
157 foo();
158 [[omp::directive(taskloop reduction(- : da))]] // expected-error 2 {{const-qualified variable cannot be reduction}} omp52-warning 3 {{minus(-) operator for reductions is deprecated; use + or user defined reduction instead}}
159 for (int i = 0; i < 10; ++i)
160 foo();
161 [[omp::directive(taskloop reduction(^ : fl))]] // expected-error {{invalid operands to binary expression ('float' and 'float')}}
162 for (int i = 0; i < 10; ++i)
163 foo();
164 [[omp::directive(taskloop reduction(&& : S2::S2s))]] // expected-error {{shared variable cannot be reduction}}
165 for (int i = 0; i < 10; ++i)
166 foo();
167 [[omp::directive(taskloop reduction(&& : S2::S2sc))]] // expected-error {{const-qualified variable cannot be reduction}}
168 for (int i = 0; i < 10; ++i)
169 foo();
170 [[omp::directive(taskloop reduction(+ : h, k))]] // expected-error {{threadprivate or thread local variable cannot be reduction}}
171 for (int i = 0; i < 10; ++i)
172 foo();
173 [[omp::directive(taskloop reduction(+ : o))]] // expected-error 2 {{no viable overloaded '='}}
174 for (int i = 0; i < 10; ++i)
175 foo();
176 [[omp::directive(taskloop private(i), reduction(+ : j), reduction(+ : q))]] // expected-error 4 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
177 for (int i = 0; i < 10; ++i)
178 foo();
179 [[omp::sequence(directive(parallel private(k)), directive(taskloop reduction(+ : p), reduction(+ : p)))]] // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
180 for (int i = 0; i < 10; ++i)
181 foo();
182 [[omp::directive(taskloop reduction(+ : p), reduction(+ : p))]] // expected-error 2 {{variable can appear only once in OpenMP 'reduction' clause}} expected-note 2 {{previously referenced here}}
183 for (int i = 0; i < 10; ++i)
184 foo();
185 [[omp::directive(taskloop reduction(+ : r))]] // expected-error 2 {{const-qualified variable cannot be reduction}}
186 for (int i = 0; i < 10; ++i)
187 foo();
188 [[omp::sequence(directive(parallel shared(i)), directive(parallel reduction(min : i)), directive(taskloop reduction(max : j)))]] // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
189 for (int i = 0; i < 10; ++i)
190 foo();
191 [[omp::sequence(directive(parallel private(fl)), directive(taskloop reduction(+ : fl) allocate(omp_thread_mem_alloc: fl)))]] // expected-warning 2 {{allocator with the 'thread' trait access has unspecified behavior on 'taskloop' directive}}
192 for (int i = 0; i < 10; ++i)
193 foo();
194 [[omp::sequence(directive(parallel reduction(* : fl)), directive(taskloop reduction(+ : fl)))]]
195 for (int i = 0; i < 10; ++i)
196 foo();
197
198 return T();
199 }
200
201 namespace A {
202 double x;
203 [[omp::directive(threadprivate(x))]]; // expected-note {{defined as threadprivate or thread local}}
204 }
205 namespace B {
206 using A::x;
207 }
208
main(int argc,char ** argv)209 int main(int argc, char **argv) {
210 const int d = 5; // expected-note 2 {{'d' defined here}}
211 const int da[5] = {0}; // expected-note {{'da' defined here}}
212 int qa[5] = {0};
213 S4 e(4);
214 S5 g(5);
215 int i, z;
216 int &j = i; // expected-note 2 {{'j' defined here}}
217 S3 &p = k; // expected-note 2 {{'p' defined here}}
218 const int &r = da[i]; // expected-note {{'r' defined here}}
219 int &q = qa[i]; // expected-note {{'q' defined here}}
220 float fl;
221 [[omp::directive(taskloop reduction)]] // expected-error {{expected '(' after 'reduction'}}
222 for (int i = 0; i < 10; ++i)
223 foo();
224 [[omp::directive(taskloop reduction +)]] // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp taskloop' are ignored}}
225 for (int i = 0; i < 10; ++i)
226 foo();
227 [[omp::directive(taskloop reduction())]] // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
228 for (int i = 0; i < 10; ++i)
229 foo();
230 [[omp::directive(taskloop reduction(*))]] // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
231 for (int i = 0; i < 10; ++i)
232 foo();
233 [[omp::directive(taskloop reduction(\))]] // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
234 for (int i = 0; i < 10; ++i)
235 foo();
236 [[omp::directive(taskloop reduction(~ : argc))]] // expected-error {{expected unqualified-id}}
237 for (int i = 0; i < 10; ++i)
238 foo();
239 [[omp::directive(taskloop reduction(&& : argc, z))]]
240 for (int i = 0; i < 10; ++i)
241 foo();
242 [[omp::directive(taskloop reduction(^ : S1))]] // expected-error {{'S1' does not refer to a value}}
243 for (int i = 0; i < 10; ++i)
244 foo();
245 [[omp::directive(taskloop reduction(+ : a, b, c, d, f))]] // expected-error {{a reduction list item with incomplete type 'S1'}} expected-error 2 {{const-qualified variable cannot be reduction}} expected-error {{'operator+' is a private member of 'S2'}}
246 for (int i = 0; i < 10; ++i)
247 foo();
248 [[omp::directive(taskloop reduction(min : a, b, c, d, f))]] // expected-error {{a reduction list item with incomplete type 'S1'}} expected-error 2 {{arguments of OpenMP clause 'reduction' for 'min' or 'max' must be of arithmetic type}} expected-error 2 {{const-qualified variable cannot be reduction}}
249 for (int i = 0; i < 10; ++i)
250 foo();
251 [[omp::directive(taskloop reduction(max : h.b))]] // expected-error {{expected variable name, array element or array section}}
252 for (int i = 0; i < 10; ++i)
253 foo();
254 [[omp::directive(taskloop reduction(+ : ba))]] // expected-error {{const-qualified variable cannot be reduction}}
255 for (int i = 0; i < 10; ++i)
256 foo();
257 [[omp::directive(taskloop reduction(* : ca))]] // expected-error {{const-qualified variable cannot be reduction}}
258 for (int i = 0; i < 10; ++i)
259 foo();
260 [[omp::directive(taskloop reduction(- : da))]] // expected-error {{const-qualified variable cannot be reduction}} omp52-warning {{minus(-) operator for reductions is deprecated; use + or user defined reduction instead}}
261 for (int i = 0; i < 10; ++i)
262 foo();
263 [[omp::directive(taskloop reduction(^ : fl))]] // expected-error {{invalid operands to binary expression ('float' and 'float')}}
264 for (int i = 0; i < 10; ++i)
265 foo();
266 [[omp::directive(taskloop reduction(&& : S2::S2s))]] // expected-error {{shared variable cannot be reduction}}
267 for (int i = 0; i < 10; ++i)
268 foo();
269 [[omp::directive(taskloop reduction(&& : S2::S2sc))]] // expected-error {{const-qualified variable cannot be reduction}}
270 for (int i = 0; i < 10; ++i)
271 foo();
272 [[omp::directive(taskloop reduction(& : e, g))]] // expected-error {{calling a private constructor of class 'S4'}} expected-error {{calling a private constructor of class 'S5'}} expected-error {{invalid operands to binary expression ('S5' and 'S5')}}
273 for (int i = 0; i < 10; ++i)
274 foo();
275 [[omp::directive(taskloop reduction(+ : h, k, B::x))]] // expected-error 2 {{threadprivate or thread local variable cannot be reduction}}
276 for (int i = 0; i < 10; ++i)
277 foo();
278 [[omp::directive(taskloop reduction(+ : o))]] // expected-error {{no viable overloaded '='}}
279 for (int i = 0; i < 10; ++i)
280 foo();
281 [[omp::directive(taskloop private(i), reduction(+ : j), reduction(+ : q))]] // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
282 for (int i = 0; i < 10; ++i)
283 foo();
284 [[omp::sequence(directive(parallel private(k)), directive(taskloop reduction(+ : p), reduction(+ : p)))]] // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
285 for (int i = 0; i < 10; ++i)
286 foo();
287 [[omp::directive(taskloop reduction(+ : p), reduction(+ : p))]] // expected-error {{variable can appear only once in OpenMP 'reduction' clause}} expected-note {{previously referenced here}}
288 for (int i = 0; i < 10; ++i)
289 foo();
290 [[omp::directive(taskloop reduction(+ : r))]] // expected-error {{const-qualified variable cannot be reduction}}
291 for (int i = 0; i < 10; ++i)
292 foo();
293 [[omp::sequence(directive(parallel shared(i)), directive(parallel reduction(min : i)), directive(taskloop reduction(max : j)))]] // expected-error {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
294 for (int i = 0; i < 10; ++i)
295 foo();
296 [[omp::sequence(directive(parallel private(fl)), directive(taskloop reduction(+ : fl)))]]
297 for (int i = 0; i < 10; ++i)
298 foo();
299 [[omp::sequence(directive(parallel reduction(* : fl)), directive(taskloop reduction(+ : fl)))]]
300 for (int i = 0; i < 10; ++i)
301 foo();
302 static int m;
303 [[omp::directive(taskloop reduction(+ : m))]] // OK
304 for (int i = 0; i < 10; ++i)
305 m++;
306 [[omp::directive(taskloop reduction(task, + : m))]] // expected-error {{'reduction' clause with 'task' modifier allowed only on non-simd parallel or worksharing constructs}}
307 for (int i = 0; i < 10; ++i)
308 m++;
309 [[omp::directive(taskloop nogroup reduction(+ : m))]] // expected-error {{'reduction' clause cannot be used with 'nogroup' clause}}
310 for (int i = 0; i < 10; ++i)
311 m++;
312
313 return tmain(argc) + tmain(fl); // expected-note {{in instantiation of function template specialization 'tmain<int>' requested here}} expected-note {{in instantiation of function template specialization 'tmain<float>' requested here}}
314 }
315
316