1 // RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -std=c++17 -fopenmp -fsyntax-only -Wuninitialized -verify %s
2
func()3 void func() {
4
5 // expected-error@+1 {{expected '('}}
6 #pragma omp tile sizes
7 ;
8
9 // expected-error@+2 {{expected expression}}
10 // expected-error@+1 {{expected ')'}} expected-note@+1 {{to match this '('}}
11 #pragma omp tile sizes(
12 ;
13
14 // expected-error@+1 {{expected expression}}
15 #pragma omp tile sizes()
16 ;
17
18 // expected-error@+1 {{expected ')'}} expected-note@+1 {{to match this '('}}
19 #pragma omp tile sizes(5
20 for (int i = 0; i < 7; ++i);
21
22 // expected-error@+2 {{expected expression}}
23 // expected-error@+1 {{expected ')'}} expected-note@+1 {{to match this '('}}
24 #pragma omp tile sizes(5,
25 ;
26
27 // expected-error@+1 {{expected expression}}
28 #pragma omp tile sizes(5,)
29 ;
30
31 // expected-error@+2 {{expected expression}}
32 // expected-error@+1 {{expected ')'}} expected-note@+1 {{to match this '('}}
33 #pragma omp tile sizes(5+
34 ;
35
36 // expected-error@+1 {{expected expression}}
37 #pragma omp tile sizes(5+)
38 ;
39
40 // expected-error@+1 {{expected expression}}
41 #pragma omp tile sizes(for)
42 ;
43
44 // expected-error@+1 {{argument to 'sizes' clause must be a strictly positive integer value}}
45 #pragma omp tile sizes(0)
46 for (int i = 0; i < 7; ++i)
47 ;
48
49 // expected-warning@+2 {{extra tokens at the end of '#pragma omp tile' are ignored}}
50 // expected-error@+1 {{directive '#pragma omp tile' requires the 'sizes' clause}}
51 #pragma omp tile foo
52 ;
53
54 // expected-error@+1 {{directive '#pragma omp tile' cannot contain more than one 'sizes' clause}}
55 #pragma omp tile sizes(5) sizes(5)
56 for (int i = 0; i < 7; ++i)
57 ;
58
59 // expected-error@+1 {{unexpected OpenMP clause 'collapse' in directive '#pragma omp tile'}}
60 #pragma omp tile sizes(5) collapse(2)
61 for (int i = 0; i < 7; ++i)
62 ;
63
64 {
65 // expected-error@+2 {{expected statement}}
66 #pragma omp tile sizes(5)
67 }
68
69 // expected-error@+2 {{statement after '#pragma omp tile' must be a for loop}}
70 #pragma omp tile sizes(5)
71 int b = 0;
72
73 // expected-error@+3 {{statement after '#pragma omp tile' must be a for loop}}
74 #pragma omp tile sizes(5,5)
75 for (int i = 0; i < 7; ++i)
76 ;
77
78 // expected-error@+2 {{statement after '#pragma omp tile' must be a for loop}}
79 #pragma omp tile sizes(5,5)
80 for (int i = 0; i < 7; ++i) {
81 int k = 3;
82 for (int j = 0; j < 7; ++j)
83 ;
84 }
85
86 // expected-error@+3 {{expected loop invariant expression}}
87 #pragma omp tile sizes(5,5)
88 for (int i = 0; i < 7; ++i)
89 for (int j = i; j < 7; ++j)
90 ;
91
92 // expected-error@+3 {{expected loop invariant expression}}
93 #pragma omp tile sizes(5,5)
94 for (int i = 0; i < 7; ++i)
95 for (int j = 0; j < i; ++j)
96 ;
97
98 // expected-error@+3 {{expected loop invariant expression}}
99 #pragma omp tile sizes(5,5)
100 for (int i = 0; i < 7; ++i)
101 for (int j = 0; j < i; ++j)
102 ;
103
104 // expected-error@+5 {{expected 3 for loops after '#pragma omp for', but found only 2}}
105 // expected-note@+1 {{as specified in 'collapse' clause}}
106 #pragma omp for collapse(3)
107 #pragma omp tile sizes(5)
108 for (int i = 0; i < 7; ++i)
109 ;
110
111 // expected-error@+2 {{statement after '#pragma omp tile' must be a for loop}}
112 #pragma omp tile sizes(5)
113 #pragma omp for
114 for (int i = 0; i < 7; ++i)
115 ;
116
117 // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', '>=', or '!=') of loop variable 'i'}}
118 #pragma omp tile sizes(5)
119 for (int i = 0; i/3<7; ++i)
120 ;
121
122 // expected-error@+2 {{expression must have integral or unscoped enumeration type, not 'struct S'}}
123 struct S{} s;
124 #pragma omp tile sizes(s)
125 for (int i = 0; i < 7; ++i)
126 ;
127 }
128
129
130 template <typename T>
templated_func()131 static void templated_func() {
132 // In a template context, but expression itself not instantiation-dependent
133
134 // expected-error@+1 {{argument to 'sizes' clause must be a strictly positive integer value}}
135 #pragma omp tile sizes(0)
136 for (int i = 0; i < 7; ++i)
137 ;
138 }
139
140 template <int S>
templated_func_value_dependent()141 static void templated_func_value_dependent() {
142 // expected-error@+1 {{argument to 'sizes' clause must be a strictly positive integer value}}
143 #pragma omp tile sizes(S)
144 for (int i = 0; i < 7; ++i)
145 ;
146 }
147
148 template <typename T>
templated_func_type_dependent()149 static void templated_func_type_dependent() {
150 constexpr T s = 0;
151 // expected-error@+1 {{argument to 'sizes' clause must be a strictly positive integer value}}
152 #pragma omp tile sizes(s)
153 for (int i = 0; i < 7; ++i)
154 ;
155 }
156
template_inst()157 void template_inst() {
158 templated_func<int>();
159 // expected-note@+1 {{in instantiation of function template specialization 'templated_func_value_dependent<0>' requested here}}
160 templated_func_value_dependent<0>();
161 // expected-note@+1 {{in instantiation of function template specialization 'templated_func_type_dependent<int>' requested here}}
162 templated_func_type_dependent<int>();
163 }
164