1 // RUN: %clang_cc1 -verify -fopenmp=libiomp5 -ferror-limit 100 -o - %s
2 
foo()3 void foo() {
4 }
5 
foobool(int argc)6 bool foobool(int argc) {
7   return argc;
8 }
9 
10 struct S1; // expected-note {{declared here}} expected-note 4 {{forward declaration of 'S1'}}
11 extern S1 a;
12 class S2 {
13   mutable int a;
operator +=(const S2 & arg)14   S2 &operator+=(const S2 &arg) { return (*this); }
15 
16 public:
S2()17   S2() : a(0) {}
S2(S2 & s2)18   S2(S2 &s2) : a(s2.a) {}
19   static float S2s; // expected-note 2 {{static data member is predetermined as shared}}
20   static const float S2sc;
21 };
22 const float S2::S2sc = 0; // expected-note 2 {{'S2sc' defined here}}
23 S2 b;                     // expected-note 2 {{'b' defined here}}
24 const S2 ba[5];           // expected-note 2 {{'ba' defined here}}
25 class S3 {
26   int a;
27 
28 public:
S3()29   S3() : a(0) {}
S3(const S3 & s3)30   S3(const S3 &s3) : a(s3.a) {}
operator +=(const S3 & arg1)31   S3 operator+=(const S3 &arg1) { return arg1; }
32 };
operator +=(const S3 & arg1,const S3 & arg2)33 int operator+=(const S3 &arg1, const S3 &arg2) { return 5; }
34 S3 c;               // expected-note 2 {{'c' defined here}}
35 const S3 ca[5];     // expected-note 2 {{'ca' defined here}}
36 extern const int f; // expected-note 4 {{'f' declared here}}
37 class S4 {          // expected-note {{'S4' declared here}}
38   int a;
39   S4();
40   S4(const S4 &s4);
operator +=(const S4 & arg)41   S4 &operator+=(const S4 &arg) { return (*this); }
42 
43 public:
S4(int v)44   S4(int v) : a(v) {}
45 };
operator &=(S4 & arg1,S4 & arg2)46 S4 &operator&=(S4 &arg1, S4 &arg2) { return arg1; }
47 class S5 {
48   int a;
S5()49   S5() : a(0) {}
S5(const S5 & s5)50   S5(const S5 &s5) : a(s5.a) {}
51   S5 &operator+=(const S5 &arg);
52 
53 public:
S5(int v)54   S5(int v) : a(v) {}
55 };
56 class S6 {
57   int a;
58 
59 public:
S6()60   S6() : a(6) {}
operator int()61   operator int() { return 6; }
62 } o; // expected-note 2 {{'o' defined here}}
63 
64 S3 h, k;
65 #pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
66 
67 template <class T>       // expected-note {{declared here}}
tmain(T argc)68 T tmain(T argc) {        // expected-note 2 {{'argc' defined here}}
69   const T d = T();       // expected-note 4 {{'d' defined here}}
70   const T da[5] = {T()}; // expected-note 2 {{'da' defined here}}
71   T qa[5] = {T()};
72   T i;
73   T &j = i;                    // expected-note 4 {{'j' defined here}}
74   S3 &p = k;                   // expected-note 2 {{'p' defined here}}
75   const T &r = da[(int)i];     // expected-note 2 {{'r' defined here}}
76   T &q = qa[(int)i];           // expected-note 2 {{'q' defined here}}
77   T fl;                        // expected-note {{'fl' defined here}}
78 #pragma omp parallel reduction // expected-error {{expected '(' after 'reduction'}}
79   foo();
80 #pragma omp parallel reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp parallel' are ignored}}
81   foo();
82 #pragma omp parallel reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
83   foo();
84 #pragma omp parallel reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
85   foo();
86 #pragma omp parallel reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
87   foo();
88 #pragma omp parallel reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
89   foo();
90 #pragma omp parallel reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
91   foo();
92 #pragma omp parallel reduction(& : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{variable of type 'float' is not valid for specified reduction operation}}
93   foo();
94 #pragma omp parallel reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{variable of type 'float' is not valid for specified reduction operation}}
95   foo();
96 #pragma omp parallel reduction(|| : argc ? i : argc) // expected-error 2 {{expected variable name}}
97   foo();
98 #pragma omp parallel reduction(foo : argc) //expected-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max'}}
99   foo();
100 #pragma omp parallel reduction(&& : argc)
101   foo();
102 #pragma omp parallel reduction(^ : T) // expected-error {{'T' does not refer to a value}}
103   foo();
104 #pragma omp parallel reduction(+ : a, b, c, d, f) // expected-error {{reduction variable with incomplete type 'S1'}} expected-error 3 {{const-qualified variable cannot be reduction}}
105   foo();
106 #pragma omp parallel reduction(min : a, b, c, d, f) // expected-error {{reduction variable with incomplete type 'S1'}} expected-error 2 {{arguments of OpenMP clause 'reduction' for 'min' or 'max' must be of arithmetic type}} expected-error 3 {{const-qualified variable cannot be reduction}}
107   foo();
108 #pragma omp parallel reduction(max : qa[1]) // expected-error 2 {{expected variable name}}
109   foo();
110 #pragma omp parallel reduction(+ : ba) // expected-error {{a reduction variable with array type 'const S2 [5]'}}
111   foo();
112 #pragma omp parallel reduction(* : ca) // expected-error {{a reduction variable with array type 'const S3 [5]'}}
113   foo();
114 #pragma omp parallel reduction(- : da) // expected-error {{a reduction variable with array type 'const int [5]'}} expected-error {{a reduction variable with array type 'const float [5]'}}
115   foo();
116 #pragma omp parallel reduction(^ : fl) // expected-error {{variable of type 'float' is not valid for specified reduction operation}}
117   foo();
118 #pragma omp parallel reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
119   foo();
120 #pragma omp parallel reduction(&& : S2::S2sc) // expected-error {{const-qualified variable cannot be reduction}}
121   foo();
122 #pragma omp parallel reduction(+ : h, k) // expected-error {{threadprivate or thread local variable cannot be reduction}}
123   foo();
124 #pragma omp parallel reduction(+ : o) // expected-error {{variable of type 'class S6' is not valid for specified reduction operation}}
125   foo();
126 #pragma omp parallel private(i), reduction(+ : j), reduction(+ : q) // expected-error 4 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
127   foo();
128 #pragma omp parallel private(k)
129 #pragma omp parallel reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
130   foo();
131 #pragma omp parallel reduction(+ : p), reduction(+ : p) // expected-error 3 {{variable can appear only once in OpenMP 'reduction' clause}} expected-note 3 {{previously referenced here}}
132   foo();
133 #pragma omp parallel reduction(+ : r) // expected-error 2 {{const-qualified variable cannot be reduction}}
134   foo();
135 #pragma omp parallel shared(i)
136 #pragma omp parallel reduction(min : i)
137 #pragma omp parallel reduction(max : j) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
138   foo();
139 #pragma omp parallel
140 #pragma omp for private(fl)
141   for (int i = 0; i < 10; ++i)
142 #pragma omp parallel reduction(+ : fl)
143     foo();
144 #pragma omp parallel
145 #pragma omp for reduction(- : fl)
146   for (int i = 0; i < 10; ++i)
147 #pragma omp parallel reduction(+ : fl)
148     foo();
149 
150   return T();
151 }
152 
main(int argc,char ** argv)153 int main(int argc, char **argv) {
154   const int d = 5;       // expected-note 2 {{'d' defined here}}
155   const int da[5] = {0}; // expected-note {{'da' defined here}}
156   int qa[5] = {0};
157   S4 e(4); // expected-note {{'e' defined here}}
158   S5 g(5); // expected-note {{'g' defined here}}
159   int i;
160   int &j = i;                  // expected-note 2 {{'j' defined here}}
161   S3 &p = k;                   // expected-note 2 {{'p' defined here}}
162   const int &r = da[i];        // expected-note {{'r' defined here}}
163   int &q = qa[i];              // expected-note {{'q' defined here}}
164   float fl;                    // expected-note {{'fl' defined here}}
165 #pragma omp parallel reduction // expected-error {{expected '(' after 'reduction'}}
166   foo();
167 #pragma omp parallel reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp parallel' are ignored}}
168   foo();
169 #pragma omp parallel reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
170   foo();
171 #pragma omp parallel reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
172   foo();
173 #pragma omp parallel reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
174   foo();
175 #pragma omp parallel reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
176   foo();
177 #pragma omp parallel reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
178   foo();
179 #pragma omp parallel reduction(foo : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max'}}
180   foo();
181 #pragma omp parallel reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
182   foo();
183 #pragma omp parallel reduction(|| : argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
184   foo();
185 #pragma omp parallel reduction(~ : argc) // expected-error {{expected unqualified-id}}
186   foo();
187 #pragma omp parallel reduction(&& : argc)
188   foo();
189 #pragma omp parallel reduction(^ : S1) // expected-error {{'S1' does not refer to a value}}
190   foo();
191 #pragma omp parallel reduction(+ : a, b, c, d, f) // expected-error {{reduction variable with incomplete type 'S1'}} expected-error 2 {{const-qualified variable cannot be reduction}}
192   foo();
193 #pragma omp parallel reduction(min : a, b, c, d, f) // expected-error {{reduction variable 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}}
194   foo();
195 #pragma omp parallel reduction(max : argv[1]) // expected-error {{expected variable name}}
196   foo();
197 #pragma omp parallel reduction(+ : ba) // expected-error {{a reduction variable with array type 'const S2 [5]'}}
198   foo();
199 #pragma omp parallel reduction(* : ca) // expected-error {{a reduction variable with array type 'const S3 [5]'}}
200   foo();
201 #pragma omp parallel reduction(- : da) // expected-error {{a reduction variable with array type 'const int [5]'}}
202   foo();
203 #pragma omp parallel reduction(^ : fl) // expected-error {{variable of type 'float' is not valid for specified reduction operation}}
204   foo();
205 #pragma omp parallel reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
206   foo();
207 #pragma omp parallel reduction(&& : S2::S2sc) // expected-error {{const-qualified variable cannot be reduction}}
208   foo();
209 #pragma omp parallel reduction(& : e, g) // expected-error {{reduction variable must have an accessible, unambiguous default constructor}} expected-error {{variable of type 'S5' is not valid for specified reduction operation}}
210   foo();
211 #pragma omp parallel reduction(+ : h, k) // expected-error {{threadprivate or thread local variable cannot be reduction}}
212   foo();
213 #pragma omp parallel reduction(+ : o) // expected-error {{variable of type 'class S6' is not valid for specified reduction operation}}
214   foo();
215 #pragma omp parallel private(i), reduction(+ : j), reduction(+ : q) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
216   foo();
217 #pragma omp parallel private(k)
218 #pragma omp parallel reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
219   foo();
220 #pragma omp parallel reduction(+ : p), reduction(+ : p) // expected-error {{variable can appear only once in OpenMP 'reduction' clause}} expected-note {{previously referenced here}}
221   foo();
222 #pragma omp parallel reduction(+ : r) // expected-error {{const-qualified variable cannot be reduction}}
223   foo();
224 #pragma omp parallel shared(i)
225 #pragma omp parallel reduction(min : i)
226 #pragma omp parallel reduction(max : j) // expected-error {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
227   foo();
228 #pragma omp parallel
229 #pragma omp for private(fl)
230   for (int i = 0; i < 10; ++i)
231 #pragma omp parallel reduction(+ : fl)
232     foo();
233 #pragma omp parallel
234 #pragma omp for reduction(- : fl)
235   for (int i = 0; i < 10; ++i)
236 #pragma omp parallel reduction(+ : fl)
237     foo();
238 
239   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}}
240 }
241