3 SDCC pic16 port currently does not support bitfields of size > 8,
4 so they are ifdefed out.
13 #if !defined(SDCC_pic16)
37 #endif /* !SDCC_pic16 */
62 #if !defined(SDCC_pic16)
97 #endif /* !SDCC_pic16 */
100 testBitfieldSizeof(void)
102 /* Although bitfields are extremely implementation dependant, these
103 assertions should hold for all implementations with storage units
104 of 8 bits or larger (nearly universal).
106 ASSERT( sizeof(size1a_bf) >= 1);
107 ASSERT( sizeof(size1b_bf) >= 1);
108 ASSERT( sizeof(size1c_bf) >= 1);
109 #if !defined(SDCC_pic16)
110 ASSERT( sizeof(size2b_bf) >= 2);
111 ASSERT( sizeof(size2c_bf) >= 2);
112 ASSERT( sizeof(size2d_bf) >= 2);
113 ASSERT( sizeof(size3a_bf) >= 2);
114 ASSERT( sizeof(size1a_bf) <= sizeof(size1b_bf));
115 #endif /* !SDCC_pic16 */
116 /* Some SDCC specific assertions. SDCC uses 8 bit storage units.
117 Bitfields that are less than 8 bits, but would (due to earlier
118 bitfield declarations) span a storage unit boundary are
119 realigned to the next storage unit boundary. Bitfields of
120 8 or greater bits are always aligned to start on a storage
124 ASSERT( sizeof(size1a_bf) == 1);
125 ASSERT( sizeof(size1b_bf) == 1);
126 ASSERT( sizeof(size1c_bf) == 1);
127 ASSERT( sizeof(size2a_bf) == 2);
128 #if !defined(SDCC_pic16)
129 ASSERT( sizeof(size2b_bf) == 2);
130 ASSERT( sizeof(size2c_bf) == 2);
131 ASSERT( sizeof(size2d_bf) == 2);
132 ASSERT( sizeof(size3a_bf) == 3);
133 #endif /* !SDCC_pic16 */
139 testBitfieldsSingleBitLiteral(void)
141 #if !defined(SDCC_pic16)
153 /* make sure modulo 2 truncation works */
154 size2b_bf.b0 = 0x3fe;
155 ASSERT(size2b_bf.b0==0);
156 ASSERT(size2b_bf.b1==0);
157 ASSERT(size2b_bf.b2==0);
158 ASSERT(size2b_bf.b3==0);
159 ASSERT(size2b_bf.b4==0);
160 ASSERT(size2b_bf.b5==0);
161 ASSERT(size2b_bf.b6==0);
162 ASSERT(size2b_bf.b7==0);
163 ASSERT(size2b_bf.b8==0);
164 ASSERT(size2b_bf.b9==0);
165 size2b_bf.b0 = 0x3ff;
166 ASSERT(size2b_bf.b0==1);
167 ASSERT(size2b_bf.b1==0);
168 ASSERT(size2b_bf.b2==0);
169 ASSERT(size2b_bf.b3==0);
170 ASSERT(size2b_bf.b4==0);
171 ASSERT(size2b_bf.b5==0);
172 ASSERT(size2b_bf.b6==0);
173 ASSERT(size2b_bf.b7==0);
174 ASSERT(size2b_bf.b8==0);
175 ASSERT(size2b_bf.b9==0);
177 /* make sure both bytes work */
178 size2b_bf.b9 = 0x3ff;
179 ASSERT(size2b_bf.b0==1);
180 ASSERT(size2b_bf.b1==0);
181 ASSERT(size2b_bf.b2==0);
182 ASSERT(size2b_bf.b3==0);
183 ASSERT(size2b_bf.b4==0);
184 ASSERT(size2b_bf.b5==0);
185 ASSERT(size2b_bf.b6==0);
186 ASSERT(size2b_bf.b7==0);
187 ASSERT(size2b_bf.b8==0);
188 ASSERT(size2b_bf.b9==1);
189 #endif /* !SDCC_pic16 */
193 testBitfieldsSingleBit(void)
195 #if !defined(SDCC_pic16)
196 volatile unsigned char c;
210 /* make sure modulo 2 truncation works */
213 ASSERT(size2b_bf.b0==0);
214 ASSERT(size2b_bf.b1==0);
215 ASSERT(size2b_bf.b2==0);
216 ASSERT(size2b_bf.b3==0);
217 ASSERT(size2b_bf.b4==0);
218 ASSERT(size2b_bf.b5==0);
219 ASSERT(size2b_bf.b6==0);
220 ASSERT(size2b_bf.b7==0);
221 ASSERT(size2b_bf.b8==0);
222 ASSERT(size2b_bf.b9==0);
225 ASSERT(size2b_bf.b0==1);
226 ASSERT(size2b_bf.b1==0);
227 ASSERT(size2b_bf.b2==0);
228 ASSERT(size2b_bf.b3==0);
229 ASSERT(size2b_bf.b4==0);
230 ASSERT(size2b_bf.b5==0);
231 ASSERT(size2b_bf.b6==0);
232 ASSERT(size2b_bf.b7==0);
233 ASSERT(size2b_bf.b8==0);
234 ASSERT(size2b_bf.b9==0);
236 /* make sure both bytes work */
238 ASSERT(size2b_bf.b0==1);
239 ASSERT(size2b_bf.b1==0);
240 ASSERT(size2b_bf.b2==0);
241 ASSERT(size2b_bf.b3==0);
242 ASSERT(size2b_bf.b4==0);
243 ASSERT(size2b_bf.b5==0);
244 ASSERT(size2b_bf.b6==0);
245 ASSERT(size2b_bf.b7==0);
246 ASSERT(size2b_bf.b8==0);
247 ASSERT(size2b_bf.b9==1);
248 #endif /* !SDCC_pic16 */
252 testBitfieldsMultibitLiteral(void)
254 #if !defined(SDCC_pic16)
255 size2c_bf.b0 = 0xff; /* should truncate to 0x0f */
257 ASSERT(size2c_bf.b0==0x0f);
258 ASSERT(size2c_bf.b1==0);
260 size2c_bf.b1 = 0xff; /* should truncate to 0x1f */
262 ASSERT(size2c_bf.b0==0);
263 ASSERT(size2c_bf.b1==0x1f);
265 size2c_bf.b0 = 0xff; /* should truncate to 0x0f */
266 size2c_bf.b1 = 0xff; /* should truncate to 0x1f */
267 ASSERT(size2c_bf.b0==0x0f);
268 ASSERT(size2c_bf.b1==0x1f);
270 size2d_bf.b0 = 0xffff; /* should truncate to 0x0fff */
272 ASSERT(size2d_bf.b0==0x0fff);
273 ASSERT(size2d_bf.b1==0);
275 size2d_bf.b1 = 0xffff; /* should truncate to 0x07 */
277 ASSERT(size2d_bf.b0==0);
278 ASSERT(size2d_bf.b1==0x07);
280 size2d_bf.b0 = 0xffff; /* should truncate to 0x0fff */
281 size2d_bf.b1 = 0xffff; /* should truncate to 0x07 */
282 ASSERT(size2d_bf.b0==0x0fff);
283 ASSERT(size2d_bf.b1==0x07);
285 size2d_bf.b0 = 0x0321;
287 ASSERT(size2d_bf.b0==0x0321);
288 ASSERT(size2d_bf.b1==1);
290 size2d_bf.b0 = 0x0a46;
292 ASSERT(size2d_bf.b0==0x0a46);
293 ASSERT(size2d_bf.b1==5);
294 #endif /* !SDCC_pic16 */
298 testBitfieldsMultibit(void)
300 #if !defined(SDCC_pic16)
301 volatile int allones = 0xffff;
302 volatile int zero = 0;
305 size2c_bf.b0 = allones; /* should truncate to 0x0f */
307 ASSERT(size2c_bf.b0==0x0f);
308 ASSERT(size2c_bf.b1==0);
310 size2c_bf.b1 = allones; /* should truncate to 0x1f */
312 ASSERT(size2c_bf.b0==0);
313 ASSERT(size2c_bf.b1==0x1f);
315 size2d_bf.b0 = allones; /* should truncate to 0x0fff */
317 ASSERT(size2d_bf.b0==0x0fff);
318 ASSERT(size2d_bf.b1==0);
320 size2d_bf.b1 = allones; /* should truncate to 0x07 */
322 ASSERT(size2d_bf.b0==0);
323 ASSERT(size2d_bf.b1==0x07);
329 ASSERT(size2d_bf.b0==0x0321);
330 ASSERT(size2d_bf.b1==1);
336 ASSERT(size2d_bf.b0==0x0a46);
337 ASSERT(size2d_bf.b1==5);
338 #endif /* !SDCC_pic16 */
346 #if defined(PORT_HOST) && (defined(__ppc__) || defined(__PPC__))
347 /* bitfields on powerpc architecture are allocated from left to right */
348 ASSERT(*(char *)(&c_bf) == ((2<<(8-3)) + 3) );
350 ASSERT(*(char *)(&c_bf) == (2 + (3<<3)) );
356 ASSERT(*(int *)(&i_bf) == (23 + (234<<7)) );
358 l_bitfield.l0_7 = 23;
359 l_bitfield.l7_10 = 234;
360 l_bitfield.l17_15 = 2345;
361 ASSERT(*(long *)(&l_bf) == (23 + (234<<7) + (2345<<17)) );
366 testSignedBitfields(void)
368 #if !defined(SDCC_pic16)
372 ASSERT(s_bf.s0_7 == -16);
373 ASSERT(s_bf.s7_1 == - 1);
374 ASSERT(s_bf.s8_9 == - 8);
375 ASSERT(s_bf.s0_7 < 0);
376 ASSERT(s_bf.s7_1 < 0);
377 ASSERT(s_bf.s8_9 < 0);
382 ASSERT(s_bf.s0_7 == 0x3f);
383 ASSERT(s_bf.s7_1 == 0);
384 ASSERT(s_bf.s8_9 == 0xff);
385 ASSERT(s_bf.s0_7 > 0);
386 ASSERT(s_bf.s8_9 > 0);
387 #endif /* !SDCC_pic16 */
390 /* test case for enhancement request #2291335 : Unnamed bit-field initialization */
404 struct s2291335_1 gs2291335_1 = {1, 2};
405 struct s2291335_2 gs2291335_2 = {1, 2};
410 struct s2291335_1 ls2291335_1 = {1, 2};
411 struct s2291335_2 ls2291335_2 = {1, 2};
413 ASSERT(gs2291335_1.a == 1);
414 ASSERT(gs2291335_1.b == 2);
415 ASSERT(gs2291335_2.a == 1);
416 ASSERT(gs2291335_2.b == 2);
418 ASSERT(ls2291335_1.a == 1);
419 ASSERT(ls2291335_1.b == 2);
420 ASSERT(ls2291335_2.a == 1);
421 ASSERT(ls2291335_2.b == 2);
424 /* test case for bug #2366757: segfault when initializing structure with bitfield */