1 // RUN: %clang_cc1 -verify -fopenmp %s -Wuninitialized
2 
3 // RUN: %clang_cc1 -verify -fopenmp-simd %s -Wuninitialized
4 
5 extern int omp_default_mem_alloc;
6 void xxx(int argc) {
7   int i, lin, step; // expected-note {{initialize the variable 'lin' to silence this warning}} expected-note {{initialize the variable 'step' to silence this warning}}
8 #pragma omp simd linear(i, lin : step) // expected-warning {{variable 'lin' is uninitialized when used here}} expected-warning {{variable 'step' is uninitialized when used here}}
9   for (i = 0; i < 10; ++i)
10     ;
11 }
12 
13 namespace X {
14   int x;
15 };
16 
17 struct B {
18   static int ib; // expected-note {{'B::ib' declared here}}
19   static int bfoo() { return 8; }
20 };
21 
22 int bfoo() { return 4; }
23 
24 int z;
25 const int C1 = 1;
26 const int C2 = 2;
27 void test_linear_colons()
28 {
29   int B = 0;
30   #pragma omp simd linear(B:bfoo())
31   for (int i = 0; i < 10; ++i) ;
32   // expected-error@+1 {{unexpected ':' in nested name specifier; did you mean '::'}}
33   #pragma omp simd linear(B::ib:B:bfoo())
34   for (int i = 0; i < 10; ++i) ;
35   // expected-error@+1 {{use of undeclared identifier 'ib'; did you mean 'B::ib'}}
36   #pragma omp simd linear(B:ib)
37   for (int i = 0; i < 10; ++i) ;
38   // expected-error@+1 {{unexpected ':' in nested name specifier; did you mean '::'?}}
39   #pragma omp simd linear(z:B:ib)
40   for (int i = 0; i < 10; ++i) ;
41   #pragma omp simd linear(B:B::bfoo())
42   for (int i = 0; i < 10; ++i) ;
43   #pragma omp simd linear(X::x : ::z)
44   for (int i = 0; i < 10; ++i) ;
45   #pragma omp simd linear(B,::z, X::x)
46   for (int i = 0; i < 10; ++i) ;
47   #pragma omp simd linear(::z)
48   for (int i = 0; i < 10; ++i) ;
49   // expected-error@+1 {{expected variable name}}
50   #pragma omp simd linear(B::bfoo())
51   for (int i = 0; i < 10; ++i) ;
52   #pragma omp simd linear(B::ib,B:C1+C2)
53   for (int i = 0; i < 10; ++i) ;
54 }
55 
56 template<int L, class T, class N> T test_template(T* arr, N num) {
57   N i;
58   T sum = (T)0;
59   T ind2 = - num * L; // expected-note {{'ind2' defined here}}
60   // expected-error@+1 {{argument of a linear clause should be of integral or pointer type}}
61 #pragma omp simd linear(ind2:L)
62   for (i = 0; i < num; ++i) {
63     T cur = arr[(int)ind2];
64     ind2 += L;
65     sum += cur;
66   }
67   return T();
68 }
69 
70 template<int LEN> int test_warn() {
71   int ind2 = 0;
72   // expected-warning@+1 {{zero linear step (ind2 should probably be const)}}
73   #pragma omp simd linear(ind2:LEN)
74   for (int i = 0; i < 100; i++) {
75     ind2 += LEN;
76   }
77   return ind2;
78 }
79 
80 struct S1; // expected-note 2 {{declared here}} expected-note 2 {{forward declaration of 'S1'}}
81 extern S1 a;
82 class S2 {
83   mutable int a;
84 public:
85   S2():a(0) { }
86 };
87 const S2 b; // expected-note 2 {{'b' defined here}}
88 const S2 ba[5];
89 class S3 {
90   int a;
91 public:
92   S3():a(0) { }
93 };
94 const S3 ca[5];
95 class S4 {
96   int a;
97   S4();
98 public:
99   S4(int v):a(v) { }
100 };
101 class S5 {
102   int a;
103   S5():a(0) {}
104 public:
105   S5(int v):a(v) { }
106 };
107 
108 S3 h;
109 #pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
110 
111 template<class I, class C> int foomain(I argc, C **argv) {
112   I e(4);
113   I g(5);
114   int i, z;
115   int &j = i;
116   #pragma omp simd linear // expected-error {{expected '(' after 'linear'}}
117   for (int k = 0; k < argc; ++k) ++k;
118   #pragma omp simd linear ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
119   for (int k = 0; k < argc; ++k) ++k;
120   #pragma omp simd linear (val // expected-error {{use of undeclared identifier 'val'}} expected-error {{expected ')'}} expected-note {{to match this '('}}
121   for (int k = 0; k < argc; ++k) ++k;
122   #pragma omp simd linear (uval( // expected-error {{expected expression}} expected-error 2 {{expected ')'}} expected-note 2 {{to match this '('}}
123   for (int k = 0; k < argc; ++k) ++k;
124   #pragma omp simd linear (ref() // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
125   for (int k = 0; k < argc; ++k) ++k;
126   #pragma omp simd linear (foo() // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
127   for (int k = 0; k < argc; ++k) ++k;
128   #pragma omp simd linear () // expected-error {{expected expression}}
129   for (int k = 0; k < argc; ++k) ++k;
130   #pragma omp simd linear (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
131   for (int k = 0; k < argc; ++k) ++k;
132   #pragma omp simd linear (val argc // expected-error {{use of undeclared identifier 'val'}} expected-error {{expected ')'}} expected-note {{to match this '('}}
133   for (int k = 0; k < argc; ++k) ++k;
134   #pragma omp simd linear (val(argc, // expected-error {{expected expression}} expected-error 2 {{expected ')'}} expected-note 2 {{to match this '('}}
135   for (int k = 0; k < argc; ++k) ++k;
136   #pragma omp simd linear (argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
137   for (int k = 0; k < argc; ++k) ++k;
138   #pragma omp simd linear (argc : 5) allocate , allocate(, allocate(omp_default , allocate(omp_default_mem_alloc, allocate(omp_default_mem_alloc:, allocate(omp_default_mem_alloc: argc, allocate(omp_default_mem_alloc: argv), allocate(argv) // expected-error {{expected '(' after 'allocate'}} expected-error 2 {{expected expression}} expected-error 2 {{expected ')'}} expected-error {{use of undeclared identifier 'omp_default'}} expected-note 2 {{to match this '('}}
139   for (int k = 0; k < argc; ++k) ++k;
140   #pragma omp simd linear (S1) // expected-error {{'S1' does not refer to a value}}
141   for (int k = 0; k < argc; ++k) ++k;
142   // expected-error@+2 {{linear variable with incomplete type 'S1'}}
143   // expected-error@+1 {{argument of a linear clause should be of integral or pointer type, not 'S2'}}
144   #pragma omp simd linear (val(a, b):B::ib)
145   for (int k = 0; k < argc; ++k) ++k;
146   #pragma omp simd linear (argv[1]) // expected-error {{expected variable name}}
147   for (int k = 0; k < argc; ++k) ++k;
148   #pragma omp simd linear(ref(e, g)) // expected-error 2 {{variable of non-reference type 'int' can be used only with 'val' modifier, but used with 'ref'}}
149   for (int k = 0; k < argc; ++k) ++k;
150   #pragma omp simd linear(h, z) // expected-error {{threadprivate or thread local variable cannot be linear}}
151   for (int k = 0; k < argc; ++k) ++k;
152   #pragma omp simd linear(uval(i)) // expected-error {{variable of non-reference type 'int' can be used only with 'val' modifier, but used with 'uval'}}
153   for (int k = 0; k < argc; ++k) ++k;
154   #pragma omp parallel
155   {
156     int v = 0;
157     int i;
158     #pragma omp simd linear(v:i)
159     for (int k = 0; k < argc; ++k) { i = k; v += i; }
160   }
161   #pragma omp simd linear(ref(j))
162   for (int k = 0; k < argc; ++k) ++k;
163   #pragma omp simd linear(uval(j))
164   for (int k = 0; k < argc; ++k) ++k;
165   int v = 0;
166   #pragma omp simd linear(v:j)
167   for (int k = 0; k < argc; ++k) { ++k; v += j; }
168   #pragma omp simd linear(i)
169   for (int k = 0; k < argc; ++k) ++k;
170   return 0;
171 }
172 
173 namespace A {
174 double x;
175 #pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
176 }
177 namespace C {
178 using A::x;
179 }
180 
181 void linear_modifiers(int argc) {
182   int &f = argc;
183   #pragma omp simd linear(f)
184   for (int k = 0; k < argc; ++k) ++k;
185   #pragma omp simd linear(val(f))
186   for (int k = 0; k < argc; ++k) ++k;
187   #pragma omp simd linear(uval(f))
188   for (int k = 0; k < argc; ++k) ++k;
189   #pragma omp simd linear(ref(f))
190   for (int k = 0; k < argc; ++k) ++k;
191   #pragma omp simd linear(foo(f)) // expected-error {{expected one of 'ref', val' or 'uval' modifiers}}
192   for (int k = 0; k < argc; ++k) ++k;
193 }
194 
195 int f;
196 int main(int argc, char **argv) {
197   double darr[100];
198   // expected-note@+1 {{in instantiation of function template specialization 'test_template<-4, double, int>' requested here}}
199   test_template<-4>(darr, 4);
200   // expected-note@+1 {{in instantiation of function template specialization 'test_warn<0>' requested here}}
201   test_warn<0>();
202 
203   S4 e(4); // expected-note {{'e' defined here}}
204   S5 g(5); // expected-note {{'g' defined here}}
205   int i, z;
206   int &j = i;
207   #pragma omp simd linear(f) linear(f) // expected-error {{linear variable cannot be linear}} expected-note {{defined as linear}}
208   for (int k = 0; k < argc; ++k) ++k;
209   #pragma omp simd linear // expected-error {{expected '(' after 'linear'}}
210   for (int k = 0; k < argc; ++k) ++k;
211   #pragma omp simd linear ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
212   for (int k = 0; k < argc; ++k) ++k;
213   #pragma omp simd linear () // expected-error {{expected expression}}
214   for (int k = 0; k < argc; ++k) ++k;
215   #pragma omp simd linear (val // expected-error {{use of undeclared identifier 'val'}} expected-error {{expected ')'}} expected-note {{to match this '('}}
216   for (int k = 0; k < argc; ++k) ++k;
217   #pragma omp simd linear (ref()) // expected-error {{expected expression}}
218   for (int k = 0; k < argc; ++k) ++k;
219   #pragma omp simd linear (foo()) // expected-error {{expected expression}}
220   for (int k = 0; k < argc; ++k) ++k;
221   #pragma omp simd linear (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
222   for (int k = 0; k < argc; ++k) ++k;
223   #pragma omp simd linear (argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
224   for (int k = 0; k < argc; ++k) ++k;
225   #pragma omp simd linear (argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
226   for (int k = 0; k < argc; ++k) ++k;
227   #pragma omp simd linear (argc)
228   for (int k = 0; k < argc; ++k) ++k;
229   #pragma omp simd linear (S1) // expected-error {{'S1' does not refer to a value}}
230   for (int k = 0; k < argc; ++k) ++k;
231   // expected-error@+2 {{linear variable with incomplete type 'S1'}}
232   // expected-error@+1 {{argument of a linear clause should be of integral or pointer type, not 'S2'}}
233   #pragma omp simd linear(a, b, z)
234   for (int k = 0; k < argc; ++k) ++k;
235   #pragma omp simd linear (argv[1]) // expected-error {{expected variable name}}
236   for (int k = 0; k < argc; ++k) ++k;
237   // expected-error@+2 {{argument of a linear clause should be of integral or pointer type, not 'S4'}}
238   // expected-error@+1 {{argument of a linear clause should be of integral or pointer type, not 'S5'}}
239   #pragma omp simd linear(val(e, g))
240   for (int k = 0; k < argc; ++k) ++k;
241   #pragma omp simd linear(h, C::x) // expected-error 2 {{threadprivate or thread local variable cannot be linear}}
242   for (int k = 0; k < argc; ++k) ++k;
243   #pragma omp parallel
244   {
245     int i;
246     #pragma omp simd linear(val(i))
247     for (int k = 0; k < argc; ++k) ++k;
248     #pragma omp simd linear(uval(i) : 4) // expected-error {{variable of non-reference type 'int' can be used only with 'val' modifier, but used with 'uval'}}
249     for (int k = 0; k < argc; ++k) { ++k; i += 4; }
250   }
251   #pragma omp simd linear(ref(j))
252   for (int k = 0; k < argc; ++k) ++k;
253   #pragma omp simd linear(i)
254   for (int k = 0; k < argc; ++k) ++k;
255 
256   foomain<int,char>(argc,argv); // expected-note {{in instantiation of function template specialization 'foomain<int, char>' requested here}}
257   return 0;
258 }
259 
260