1 // RUN: %clang_cc1 -verify -fopenmp -ferror-limit 100 %s -Wuninitialized
2
3 // RUN: %clang_cc1 -verify -fopenmp-simd -ferror-limit 100 %s -Wuninitialized
4
5 int temp; // expected-note 6 {{'temp' declared here}}
6
7 #pragma omp declare reduction // expected-error {{expected '(' after 'declare reduction'}}
8 #pragma omp declare reduction { // expected-error {{expected '(' after 'declare reduction'}}
9 #pragma omp declare reduction( // expected-error {{expected identifier or one of the following operators: '+', '-', '*', '&', '|', '^', '&&', or '||'}}
10 #pragma omp declare reduction(# // expected-error {{expected identifier or one of the following operators: '+', '-', '*', '&', '|', '^', '&&', or '||'}}
11 #pragma omp declare reduction(/ // expected-error {{expected identifier or one of the following operators: '+', '-', '*', '&', '|', '^', '&&', or '||'}}
12 #pragma omp declare reduction(+ // expected-error {{expected ':'}}
13 #pragma omp declare reduction(for // expected-error {{expected identifier or one of the following operators: '+', '-', '*', '&', '|', '^', '&&', or '||'}}
14 #pragma omp declare reduction(if: // expected-error {{expected identifier or one of the following operators: '+', '-', '*', '&', '|', '^', '&&', or '||'}} expected-error {{expected a type}}
15 #pragma omp declare reduction(oper: // expected-error {{expected a type}}
16 #pragma omp declare reduction(oper; // expected-error {{expected ':'}} expected-error {{expected a type}}
17 #pragma omp declare reduction(fun : int // expected-error {{expected ':'}} expected-error {{expected expression}}
18 #pragma omp declare reduction(+ : const int: // expected-error {{reduction type cannot be qualified with 'const', 'volatile' or 'restrict'}}
19 #pragma omp declare reduction(- : volatile int: // expected-error {{reduction type cannot be qualified with 'const', 'volatile' or 'restrict'}}
20 #pragma omp declare reduction(* : int; // expected-error {{expected ','}} expected-error {{expected a type}}
21 #pragma omp declare reduction(& : double char: // expected-error {{cannot combine with previous 'double' declaration specifier}} expected-error {{expected expression}}
22 #pragma omp declare reduction(^ : double, char, : // expected-error {{expected a type}} expected-error {{expected expression}}
23 #pragma omp declare reduction(&& : int, S: // expected-error {{unknown type name 'S'}} expected-error {{expected expression}}
24 #pragma omp declare reduction(|| : int, double : temp += omp_in) // expected-error 2 {{only 'omp_in' or 'omp_out' variables are allowed in combiner expression}}
25 #pragma omp declare reduction(| : char, float : omp_out += temp) // expected-error 2 {{only 'omp_in' or 'omp_out' variables are allowed in combiner expression}}
26 #pragma omp declare reduction(fun : long : omp_out += omp_in) { // expected-error {{expected 'initializer'}} expected-warning {{extra tokens at the end of '#pragma omp declare reduction' are ignored}}
27 #pragma omp declare reduction(fun : unsigned : omp_out += temp)) // expected-error {{expected 'initializer'}} expected-warning {{extra tokens at the end of '#pragma omp declare reduction' are ignored}} expected-error {{only 'omp_in' or 'omp_out' variables are allowed in combiner expression}}
28 #pragma omp declare reduction(fun : long(void) : omp_out += omp_in) // expected-error {{reduction type cannot be a function type}}
29 #pragma omp declare reduction(fun : long[3] : omp_out += omp_in) // expected-error {{reduction type cannot be an array type}}
30 #pragma omp declare reduction(fun23 : long, int, long : omp_out += omp_in) // expected-error {{redefinition of user-defined reduction for type 'long'}} expected-note {{previous definition is here}}
31
32 #pragma omp declare reduction(fun222 : long : omp_out += omp_in)
33 #pragma omp declare reduction(fun1 : long : omp_out += omp_in) initializer // expected-error {{expected '(' after 'initializer'}}
34 #pragma omp declare reduction(fun2 : long : omp_out += omp_in) initializer { // expected-error {{expected '(' after 'initializer'}} expected-error {{expected expression}} expected-warning {{extra tokens at the end of '#pragma omp declare reduction' are ignored}}
35 #pragma omp declare reduction(fun3 : long : omp_out += omp_in) initializer[ // expected-error {{expected '(' after 'initializer'}} expected-error {{expected expression}} expected-warning {{extra tokens at the end of '#pragma omp declare reduction' are ignored}}
36 #pragma omp declare reduction(fun4 : long : omp_out += omp_in) initializer() // expected-error {{expected expression}}
37 #pragma omp declare reduction(fun5 : long : omp_out += omp_in) initializer(temp) // expected-error {{only 'omp_priv' or 'omp_orig' variables are allowed in initializer expression}}
38 #pragma omp declare reduction(fun6 : long : omp_out += omp_in) initializer(omp_orig // expected-error {{expected ')'}} expected-note {{to match this '('}}
39 #pragma omp declare reduction(fun7 : long : omp_out += omp_in) initializer(omp_priv 12) // expected-error {{expected ')'}} expected-note {{to match this '('}}
40 #pragma omp declare reduction(fun8 : long : omp_out += omp_in) initializer(omp_priv = 23) // expected-note {{previous definition is here}}
41 #pragma omp declare reduction(fun8 : long : omp_out += omp_in) initializer(omp_priv = 23)) // expected-warning {{extra tokens at the end of '#pragma omp declare reduction' are ignored}} expected-error {{redefinition of user-defined reduction for type 'long'}}
42 #pragma omp declare reduction(fun9 : long : omp_out += omp_in) initializer(omp_priv = ) // expected-error {{expected expression}}
43
44 struct S {
45 int s;
46 };
47 #pragma omp declare reduction(+: struct S: omp_out.s += omp_in.s) // initializer(omp_priv = { .s = 0 })
48 #pragma omp declare reduction(&: struct S: omp_out.s += omp_in.s) initializer(omp_priv = { .s = 0 })
49 #pragma omp declare reduction(|: struct S: omp_out.s += omp_in.s) initializer(omp_priv = { 0 })
50
fun(int arg)51 int fun(int arg) {
52 struct S s;// expected-note {{'s' defined here}}
53 s.s = 0;
54 #pragma omp parallel for reduction(+ : s) // expected-error {{list item of type 'struct S' is not valid for specified reduction operation: unable to provide default initialization value}}
55 for (arg = 0; arg < 10; ++arg)
56 s.s += arg;
57 #pragma omp declare reduction(red : int : omp_out++)
58 {
59 #pragma omp declare reduction(red : int : omp_out++) // expected-note {{previous definition is here}}
60 #pragma omp declare reduction(red : int : omp_out++) // expected-error {{redefinition of user-defined reduction for type 'int'}}
61 {
62 #pragma omp declare reduction(red : int : omp_out++)
63 }
64 }
65 return arg;
66 }
67