1 // RUN: %clang_cc1 -fsyntax-only -verify -Wall -W -Wno-comment -Wno-strict-prototypes -triple arm64-linux-gnu -target-feature +sve -std=c90 %s
2 // RUN: %clang_cc1 -fsyntax-only -verify -Wall -W -Wno-strict-prototypes -triple arm64-linux-gnu -target-feature +sve -std=c11 %s
3 // RUN: %clang_cc1 -fsyntax-only -verify -Wall -W -Wno-strict-prototypes -triple arm64-linux-gnu -target-feature +sve -std=gnu11 %s
4
5 typedef __SVInt8_t svint8_t;
6 typedef __SVInt16_t svint16_t;
7
8 svint8_t global_int8; // expected-error {{non-local variable with sizeless type 'svint8_t'}}
9 extern svint8_t extern_int8; // expected-error {{non-local variable with sizeless type 'svint8_t'}}
10 static svint8_t static_int8; // expected-error {{non-local variable with sizeless type 'svint8_t'}}
11 __thread svint8_t thread_int8; // expected-error {{non-local variable with sizeless type 'svint8_t'}}
12 svint8_t *global_int8_ptr;
13 extern svint8_t *extern_int8_ptr;
14 static svint8_t *static_int8_ptr;
15
16 typedef svint8_t int8_typedef;
17 typedef svint8_t *int8_ptr_typedef;
18
19 int sizeof_int8 = sizeof(svint8_t); // expected-error {{invalid application of 'sizeof' to sizeless type 'svint8_t'}}
20 int sizeof_int8_var = sizeof(*extern_int8_ptr); // expected-error {{invalid application of 'sizeof' to sizeless type 'svint8_t'}}
21 int sizeof_int8_var_ptr = sizeof(extern_int8_ptr);
22
23 int alignof_int8 = _Alignof(svint8_t); // expected-error {{invalid application of 'alignof' to sizeless type 'svint8_t'}}
24 int alignof_int8_var = _Alignof(*extern_int8_ptr); // expected-error {{invalid application of 'alignof' to sizeless type 'svint8_t'}} expected-warning {{GNU extension}}
25 int alignof_int8_var_ptr = _Alignof(extern_int8_ptr); // expected-warning {{GNU extension}}
26
27 void pass_int8(svint8_t); // expected-note {{passing argument to parameter here}}
28
29 svint8_t return_int8(void);
30
31 typedef svint8_t vec_int8_a __attribute__((vector_size(64))); // expected-error {{invalid vector element type}}
32 typedef svint8_t vec_int8_b __attribute__((ext_vector_type(4))); // expected-error {{invalid vector element type}}
33
34 void dump(const volatile void *);
35
36 void __attribute__((overloadable)) overf(svint8_t);
37 void __attribute__((overloadable)) overf(svint16_t);
38
39 void __attribute__((overloadable)) overf8(svint8_t); // expected-note + {{not viable}}
40 void __attribute__((overloadable)) overf8(int); // expected-note + {{not viable}}
41
42 void __attribute__((overloadable)) overf16(svint16_t); // expected-note + {{not viable}}
43 void __attribute__((overloadable)) overf16(int); // expected-note + {{not viable}}
44
45 void noproto();
46 void varargs(int, ...);
47
unused(void)48 void unused(void) {
49 svint8_t unused_int8; // expected-warning {{unused}}
50 }
51
52 struct incomplete_struct *incomplete_ptr;
53
54 typedef svint8_t sizeless_array[1]; // expected-error {{array has sizeless element type}}
55
func(int sel)56 void func(int sel) {
57 static svint8_t static_int8; // expected-error {{non-local variable with sizeless type 'svint8_t'}}
58
59 svint8_t local_int8;
60 int8_typedef typedef_int8;
61 svint16_t local_int16;
62
63 svint8_t __attribute__((aligned)) aligned_int8_1; // expected-error {{'aligned' attribute cannot be applied to sizeless type 'svint8_t'}}
64 svint8_t __attribute__((aligned(4))) aligned_int8_2; // expected-error {{'aligned' attribute cannot be applied to sizeless type 'svint8_t'}}
65 svint8_t _Alignas(int) aligned_int8_3; // expected-error {{'_Alignas' attribute cannot be applied to sizeless type 'svint8_t'}}
66
67 int _Alignas(svint8_t) aligned_int; // expected-error {{invalid application of '_Alignas' to sizeless type 'svint8_t'}}
68
69 // Using pointers to sizeless data isn't wrong here, but because the
70 // type is incomplete, it doesn't provide any alignment guarantees.
71 _Static_assert(__atomic_is_lock_free(1, &local_int8) == __atomic_is_lock_free(1, incomplete_ptr), "");
72 _Static_assert(__atomic_is_lock_free(2, &local_int8) == __atomic_is_lock_free(2, incomplete_ptr), ""); // expected-error {{static assertion expression is not an integral constant expression}}
73 _Static_assert(__atomic_always_lock_free(1, &local_int8) == __atomic_always_lock_free(1, incomplete_ptr), "");
74
75 local_int8; // expected-warning {{expression result unused}}
76
77 (void)local_int8;
78
79 local_int8, 0; // expected-warning {{left operand of comma operator has no effect}}
80
81 0, local_int8; // expected-warning {{left operand of comma operator has no effect}} expected-warning {{expression result unused}}
82
83 svint8_t init_int8 = local_int8;
84 svint8_t bad_init_int8 = for; // expected-error {{expected expression}}
85
86 int empty_brace_init_int = {};
87 svint8_t empty_brace_init_int8 = {};
88 svint8_t brace_init_int8 = {local_int8};
89 svint8_t bad_brace_init_int8_1 = {local_int8, 0}; // expected-warning {{excess elements in initializer for indivisible sizeless type 'svint8_t'}}
90 svint8_t bad_brace_init_int8_2 = {0}; // expected-error {{incompatible type 'int'}}
91 svint8_t bad_brace_init_int8_3 = {local_int16}; // expected-error {{incompatible type 'svint16_t'}}
92 svint8_t bad_brace_init_int8_4 = {[0] = local_int8}; // expected-error {{initialization of non-aggregate type 'svint8_t' (aka '__SVInt8_t') with a designated initializer list}}
93 svint8_t bad_brace_init_int8_5 = {{local_int8}}; // expected-warning {{too many braces around initializer}}
94 svint8_t bad_brace_init_int8_6 = {{local_int8, 0}}; // expected-warning {{too many braces around initializer}}
95
96 const svint8_t const_int8 = local_int8; // expected-note {{declared const here}}
97 const svint8_t uninit_const_int8;
98
99 volatile svint8_t volatile_int8;
100
101 const volatile svint8_t const_volatile_int8 = local_int8; // expected-note {{declared const here}}
102 const volatile svint8_t uninit_const_volatile_int8;
103
104 _Atomic svint8_t atomic_int8; // expected-error {{_Atomic cannot be applied to sizeless type 'svint8_t'}}
105 __restrict svint8_t restrict_int8; // expected-error {{requires a pointer or reference}}
106
107 svint8_t array_int8[1]; // expected-error {{array has sizeless element type}}
108 svint8_t array_int8_init[] = {}; // expected-error {{array has sizeless element type}}
109
110 _Bool test_int8 = init_int8; // expected-error {{initializing '_Bool' with an expression of incompatible type 'svint8_t'}}
111
112 int int_int8 = init_int8; // expected-error {{initializing 'int' with an expression of incompatible type 'svint8_t'}}
113
114 init_int8 = local_int8;
115 init_int8 = local_int16; // expected-error {{assigning to 'svint8_t' (aka '__SVInt8_t') from incompatible type 'svint16_t'}}
116 init_int8 = sel; // expected-error {{assigning to 'svint8_t' (aka '__SVInt8_t') from incompatible type 'int'}}
117
118 sel = local_int8; // expected-error {{assigning to 'int' from incompatible type 'svint8_t'}}
119
120 local_int8 = (svint8_t)local_int8;
121 local_int8 = (const svint8_t)local_int8;
122 local_int8 = (svint8_t)local_int16; // expected-error {{used type 'svint8_t' (aka '__SVInt8_t') where arithmetic or pointer type is required}}
123 local_int8 = (svint8_t)0; // expected-error {{used type 'svint8_t' (aka '__SVInt8_t') where arithmetic or pointer type is required}}
124 sel = (int)local_int8; // expected-error {{operand of type 'svint8_t' (aka '__SVInt8_t') where arithmetic or pointer type is required}}
125
126 init_int8 = local_int8;
127 init_int8 = const_int8;
128 init_int8 = volatile_int8;
129 init_int8 = const_volatile_int8;
130
131 const_int8 = local_int8; // expected-error {{cannot assign to variable 'const_int8' with const-qualified type 'const svint8_t'}}
132
133 volatile_int8 = local_int8;
134 volatile_int8 = const_int8;
135 volatile_int8 = volatile_int8;
136 volatile_int8 = const_volatile_int8;
137
138 const_volatile_int8 = local_int8; // expected-error {{cannot assign to variable 'const_volatile_int8' with const-qualified type 'const volatile svint8_t'}}
139
140 init_int8 = sel ? init_int8 : local_int8;
141 init_int8 = sel ? init_int8 : typedef_int8;
142 init_int8 = sel ? init_int8 : const_int8;
143 init_int8 = sel ? volatile_int8 : const_int8;
144 init_int8 = sel ? volatile_int8 : const_volatile_int8;
145
146 pass_int8(local_int8);
147 pass_int8(local_int16); // expected-error {{passing 'svint16_t' (aka '__SVInt16_t') to parameter of incompatible type 'svint8_t'}}
148
149 local_int8 = return_int8();
150 local_int16 = return_int8(); // expected-error {{assigning to 'svint16_t' (aka '__SVInt16_t') from incompatible type 'svint8_t'}}
151
152 dump(&local_int8);
153 dump(&const_int8);
154 dump(&volatile_int8);
155 dump(&const_volatile_int8);
156
157 dump(&local_int8 + 1); // expected-error {{arithmetic on a pointer to sizeless type}}
158
159 *&local_int8 = local_int8;
160 *&const_int8 = local_int8; // expected-error {{read-only variable is not assignable}}
161 *&volatile_int8 = local_int8;
162 *&const_volatile_int8 = local_int8; // expected-error {{read-only variable is not assignable}}
163
164 global_int8_ptr[0] = local_int8; // expected-error {{subscript of pointer to sizeless type 'svint8_t'}}
165 global_int8_ptr[1] = local_int8; // expected-error {{subscript of pointer to sizeless type 'svint8_t'}}
166 global_int8_ptr = &global_int8_ptr[2]; // expected-error {{subscript of pointer to sizeless type 'svint8_t'}}
167
168 overf(local_int8);
169 overf(local_int16);
170
171 overf8(local_int8);
172 overf8(local_int16); // expected-error {{no matching function}}
173
174 overf16(local_int8); // expected-error {{no matching function}}
175 overf16(local_int16);
176
177 noproto(local_int8);
178 varargs(1, local_int8, local_int16);
179
180 global_int8_ptr++; // expected-error {{arithmetic on a pointer to sizeless type}}
181 global_int8_ptr--; // expected-error {{arithmetic on a pointer to sizeless type}}
182 ++global_int8_ptr; // expected-error {{arithmetic on a pointer to sizeless type}}
183 --global_int8_ptr; // expected-error {{arithmetic on a pointer to sizeless type}}
184 global_int8_ptr + 1; // expected-error {{arithmetic on a pointer to sizeless type}}
185 global_int8_ptr - 1; // expected-error {{arithmetic on a pointer to sizeless type}}
186 global_int8_ptr += 1; // expected-error {{arithmetic on a pointer to sizeless type}}
187 global_int8_ptr -= 1; // expected-error {{arithmetic on a pointer to sizeless type}}
188 global_int8_ptr - global_int8_ptr; // expected-error {{arithmetic on a pointer to sizeless type}}
189
190 ++init_int8; // expected-error {{cannot increment value of type 'svint8_t'}}
191 init_int8++; // expected-error {{cannot increment value of type 'svint8_t'}}
192 --init_int8; // expected-error {{cannot decrement value of type 'svint8_t'}}
193 init_int8--; // expected-error {{cannot decrement value of type 'svint8_t'}}
194 !init_int8; // expected-error {{invalid argument type 'svint8_t'}}
195 *init_int8; // expected-error {{indirection requires pointer operand}}
196 __real init_int8; // expected-error {{invalid type 'svint8_t'}}
197 __imag init_int8; // expected-error {{invalid type 'svint8_t'}}
198
199 local_int8 &&init_int8; // expected-error {{invalid operands to binary expression}}
200 local_int8 || init_int8; // expected-error {{invalid operands to binary expression}}
201
202 if (local_int8) { // expected-error {{statement requires expression of scalar type}}
203 }
204 while (local_int8) { // expected-error {{statement requires expression of scalar type}}
205 }
206 do { // expected-error {{statement requires expression of scalar type}}
207 } while (local_int8);
208 switch (local_int8) { // expected-error {{statement requires expression of integer type}}
209 default:;
210 }
211 }
212
vararg_receiver(int count,svint8_t first,...)213 int vararg_receiver(int count, svint8_t first, ...) {
214 __builtin_va_list va;
215
216 __builtin_va_start(va, first);
217 __builtin_va_arg(va, svint8_t);
218 __builtin_va_end(va);
219 return count;
220 }
221
222 struct sized_struct {
223 int f1;
224 svint8_t f2; // expected-error {{field has sizeless type 'svint8_t'}}
225 svint8_t f3 : 2; // expected-error {{field has sizeless type 'svint8_t'}}
226 svint8_t : 3; // expected-error {{field has sizeless type 'svint8_t'}}
227 };
228
229 union sized_union {
230 int f1;
231 svint8_t f2; // expected-error {{field has sizeless type 'svint8_t'}}
232 svint8_t f3 : 2; // expected-error {{field has sizeless type 'svint8_t'}}
233 svint8_t : 3; // expected-error {{field has sizeless type 'svint8_t'}}
234 };
235
236 #if __STDC_VERSION__ >= 201112L
test_generic(void)237 void test_generic(void) {
238 svint8_t local_int8;
239 svint16_t local_int16;
240
241 int a1[_Generic(local_int8, svint8_t : 1, svint16_t : 2, default : 3) == 1 ? 1 : -1];
242 int a2[_Generic(local_int16, svint8_t : 1, svint16_t : 2, default : 3) == 2 ? 1 : -1];
243 int a3[_Generic(0, svint8_t : 1, svint16_t : 2, default : 3) == 3 ? 1 : -1];
244 (void)_Generic(0, svint8_t : 1, svint8_t : 2, default : 3); // expected-error {{type 'svint8_t' (aka '__SVInt8_t') in generic association compatible with previously specified type 'svint8_t'}} expected-note {{compatible type}}
245 }
246
test_compound_literal(void)247 void test_compound_literal(void) {
248 svint8_t local_int8;
249
250 (void)(svint8_t){local_int8};
251 }
252 #endif
253