1 /* PR c/66970 - Add __has_builtin() macro
2 Verify __has_builtin evaluation for common built-ins and other identifiers.
3 { dg-do compile } */
4
5 // Verify a few library built-ins.
6 #if !__has_builtin (__builtin_abs)
7 # error "__has_builtin (__builtin_abs) failed"
8 #endif
9
10 #if !__has_builtin (abs)
11 // abs is also a built-in unless disabled by -fno-builtin.
12 # error "__has_builtin (abs) failed"
13 #endif
14
15 #if __cplusplus
16 // Declare an overload and verify that __has_builtin (isalpha) still
17 // evaluates to true.
18 int isalpha (const char*);
19 #endif
20
21 #if !__has_builtin (__builtin_isalpha)
22 # error "__has_builtin (__builtin_isalpha) failed"
23 #endif
24
25 #if !__has_builtin (isalpha)
26 // isalpha is still a built-in despite the overload above.
27 # error "__has_builtin (isalpha) failed"
28 #endif
29
30
31 #if !__has_builtin (__builtin__Exit)
32 # error "__has_builtin (__builtin__Exit) failed"
33 #endif
34
35
36 #if !__has_builtin (__builtin_alloca)
37 # error "__has_builtin (__builtin_alloca) failed"
38 #endif
39
40 #if !__has_builtin (__builtin_is_constant_evaluated)
41 // __builtin_is_constant_evaluated is a C++-only built.
42 # ifdef __cplusplus
43 # error "__has_builtin (__builtin_is_constant_evaluated) failed"
44 # endif
45 #else
46 # ifndef __cplusplus
47 # error "__has_builtin (__builtin_is_constant_evaluated) failed"
48 # endif
49 #endif
50
51 #if !__has_builtin (__builtin_expect)
52 # error "__has_builtin (__builtin_expect) failed"
53 #endif
54
55 #if !__has_builtin (__builtin_trap)
56 # error "__has_builtin (__builtin_trap) failed"
57 #endif
58
59 #if !__has_builtin (__builtin_unreachable)
60 # error "__has_builtin (__builtin_unreachable) failed"
61 #endif
62
63 #if !__has_builtin (__builtin_LINE)
64 # error "__has_builtin (__builtin_LINE) failed"
65 #endif
66
67 #if !__has_builtin (__builtin_object_size)
68 # error "__has_builtin (__builtin_object_size) failed"
69 #endif
70
71 #if !__has_builtin (__builtin_inf)
72 # error "__has_builtin (__builtin_inf) failed"
73 #endif
74
75 #if !__has_builtin (__builtin_nan)
76 # error "__has_builtin (__builtin_nan) failed"
77 #endif
78
79 #if !__has_builtin (__builtin_bswap16)
80 # error "__has_builtin (__builtin_bswap16) failed"
81 #endif
82
83 #if !__has_builtin (__builtin_bswap32)
84 # error "__has_builtin (__builtin_bswap32) failed"
85 #endif
86
87
88 // Verify a few integer overflow built-ins.
89 #if !__has_builtin (__builtin_add_overflow)
90 # error "__has_builtin (__builtin_add_overflow) failed"
91 #endif
92
93 #if !__has_builtin (__builtin_sadd_overflow)
94 # error "__has_builtin (__builtin_sadd_overflow) failed"
95 #endif
96
97 #if !__has_builtin (__builtin_add_overflow_p)
98 # error "__has_builtin (__builtin_add_overflow_p) failed"
99 #endif
100
101
102 // Verify a few atomic built-ins.
103 #if !__has_builtin (__atomic_load)
104 # error "__has_builtin (__atomic_load) failed"
105 #endif
106
107 #if !__has_builtin (__atomic_load_n)
108 # error "__has_builtin (__atomic_load_n) failed"
109 #endif
110
111 #if !__has_builtin (__atomic_store)
112 # error "__has_builtin (__atomic_store) failed"
113 #endif
114
115 #if !__has_builtin (__atomic_store_n)
116 # error "__has_builtin (__atomic_store_n) failed"
117 #endif
118
119 #if !__has_builtin (__atomic_exchange)
120 # error "__has_builtin (__atomic_echange) failed"
121 #endif
122
123 #if !__has_builtin (__atomic_exchange_n)
124 # error "__has_builtin (__atomic_exchange_n) failed"
125 #endif
126
127
128 // Verify a few sync built-ins.
129 #if !__has_builtin (__sync_fetch_and_add)
130 # error "__has_builtin (__sync_fetch_and_add) failed"
131 #endif
132
133 #if !__has_builtin (__sync_add_and_fetch)
134 # error "__has_builtin (__sync_add_and_fetch) failed"
135 #endif
136
137 #if !__has_builtin (__sync_bool_compare_and_swap)
138 # error "__has_builtin (__sync_bool_compare_and_swap) failed"
139 #endif
140
141 #if !__has_builtin (__sync_val_compare_and_swap)
142 # error "__has_builtin (__sync_val_compare_and_swap) failed"
143 #endif
144
145 #if !__has_builtin (__sync_synchronize)
146 # error "__has_builtin (__sync_synchronize) failed"
147 #endif
148
149 // Verify nonlocal goto builtins.
150 #if !__has_builtin (__builtin_setjmp)
151 # error "__has_builtin (__builtin_setjmp) failed"
152 #endif
153
154 #if !__has_builtin (__builtin_longjmp)
155 # error "__has_builtin (__builtin_longjmp) failed"
156 #endif
157
158
159 // Verify a few built-ins for constructing function calls.
160
161 #if !__has_builtin (__builtin_apply)
162 # error "__has_builtin (__builtin_apply) failed"
163 #endif
164
165 #if !__has_builtin (__builtin_return)
166 # error "__has_builtin (__builtin_return) failed"
167 #endif
168
169 // Verify built-ins for function return address.
170 #if !__has_builtin (__builtin_return_address)
171 # error "__has_builtin (__builtin_return_address) failed"
172 #endif
173
174 #if !__has_builtin (__builtin_extract_return_addr)
175 # error "__has_builtin (__builtin_extract_return_addr) failed"
176 #endif
177
178 #if !__has_builtin (__builtin_frob_return_addr)
179 # error "__has_builtin (__builtin_frob_return_addr) failed"
180 #endif
181
182 #if !__has_builtin (__builtin_frame_address)
183 # error "__has_builtin (__builtin_frame_address) failed"
184 #endif
185
186 // Verify keywords that aren't declared built-in functions.
187
188 #if !__has_builtin (__builtin_has_attribute)
189 # error "__has_builtin (__builtin_has_attribute) failed"
190 #endif
191
192 #if !__has_builtin (__builtin_offsetof)
193 # error "__has_builtin (__builtin_offsetof) failed"
194 #endif
195
196 // Verify some C-only built-ins.
197
198 #if !__has_builtin (__builtin_types_compatible_p)
199 # if !__cplusplus
200 # error "__has_builtin (__builtin_types_compatible_p) failed"
201 # endif
202 #else
203 # if __cplusplus
204 # error "__has_builtin (__builtin_types_compatible_p) failed"
205 # endif
206 #endif
207
208 // Verify a few C++ traits built-ins.
209
210 #if !__has_builtin (__builtin_addressof)
211 # if __cplusplus
212 # error "__has_builtin (__builtin_addressof) failed"
213 # endif
214 #else
215 # if !__cplusplus
216 # error "__has_builtin (__builtin_addressof) failed"
217 # endif
218 #endif
219
220 #if !__has_builtin (__builtin_launder)
221 # if __cplusplus
222 # error "__has_builtin (__builtin_launder) failed"
223 # endif
224 #else
225 # if !__cplusplus
226 # error "__has_builtin (__builtin_launder) failed"
227 # endif
228 #endif
229
230 #if !__has_builtin (__has_nothrow_assign)
231 # if __cplusplus
232 # error "__has_builtin (__has_nothrow_assign) failed"
233 # endif
234 #else
235 # if !__cplusplus
236 # error "__has_builtin (__has_nothrow_assign) failed"
237 # endif
238 #endif
239
240 #if !__has_builtin (__has_trivial_assign)
241 # if __cplusplus
242 # error "__has_builtin (__has_trivial_assign) failed"
243 # endif
244 #else
245 # if !__cplusplus
246 # error "__has_builtin (__has_trivial_assign) failed"
247 # endif
248 #endif
249
250 #if !__has_builtin (__has_virtual_destructor)
251 # if __cplusplus
252 # error "__has_builtin (__has_virtual_destructor) failed"
253 # endif
254 #else
255 # if !__cplusplus
256 # error "__has_builtin (__has_virtual_destructor) failed"
257 # endif
258 #endif
259
260
261 // Verify an Intel built-in that's not implemented by any other target.
262 #if !__has_builtin (__builtin_ia32_pause)
263 # if defined (__i386__) || defined (__x86_64__)
264 # error "__has_builtin (__builtin_ia32_pause) failed"
265 # endif
266 #else
267 # if !defined (__i386__) && !defined (__x86_64__)
268 # error "__has_builtin (__builtin_ia32_pause) failed"
269 # endif
270 #endif
271
272
273 // Verify non-functions.
274
275 #if __has_builtin (__alignof__)
276 # error "__has_builtin (__alignof__) failed"
277 #endif
278
279 #if __has_builtin (asm)
280 # error "__has_builtin (asm) failed"
281 #endif
282
283 #if __has_builtin (__asm__)
284 # error "__has_builtin (__asm__) failed"
285 #endif
286
287 #if __has_builtin (__attribute__)
288 # error "__has_builtin (__attribute__) failed"
289 #endif
290
291 #if __has_builtin (__inline__)
292 # error "__has_builtin (__inline__) failed"
293 #endif
294
295 #if __has_builtin (__typeof__)
296 # error "__has_builtin (__typeof__) failed"
297 #endif