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