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2003-02-28 Aldy Hernandez <aldyh@redhat.com>
[official-gcc.git] / gcc / longlong.h
blobecca2deef2da966f4b46c9fce3ad307e811878e0
1 /* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
2 Copyright (C) 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000
3 Free Software Foundation, Inc.
4
5 This definition file is free software; you can redistribute it
6 and/or modify it under the terms of the GNU General Public
7 License as published by the Free Software Foundation; either
8 version 2, or (at your option) any later version.
9
10 This definition file is distributed in the hope that it will be
11 useful, but WITHOUT ANY WARRANTY; without even the implied
12 warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 See the GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA. */
19
20 /* You have to define the following before including this file:
21
22 UWtype -- An unsigned type, default type for operations (typically a "word")
23 UHWtype -- An unsigned type, at least half the size of UWtype.
24 UDWtype -- An unsigned type, at least twice as large a UWtype
25 W_TYPE_SIZE -- size in bits of UWtype
26
27 UQItype -- Unsigned 8 bit type.
28 SItype, USItype -- Signed and unsigned 32 bit types.
29 DItype, UDItype -- Signed and unsigned 64 bit types.
30
31 On a 32 bit machine UWtype should typically be USItype;
32 on a 64 bit machine, UWtype should typically be UDItype.
33 */
34
35 #define __BITS4 (W_TYPE_SIZE / 4)
36 #define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2))
37 #define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1))
38 #define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2))
39
40 #ifndef W_TYPE_SIZE
41 #define W_TYPE_SIZE 32
42 #define UWtype USItype
43 #define UHWtype USItype
44 #define UDWtype UDItype
45 #endif
46
47 /* Define auxiliary asm macros.
48
49 1) umul_ppmm(high_prod, low_prod, multipler, multiplicand) multiplies two
50 UWtype integers MULTIPLER and MULTIPLICAND, and generates a two UWtype
51 word product in HIGH_PROD and LOW_PROD.
52
53 2) __umulsidi3(a,b) multiplies two UWtype integers A and B, and returns a
54 UDWtype product. This is just a variant of umul_ppmm.
55
56 3) udiv_qrnnd(quotient, remainder, high_numerator, low_numerator,
57 denominator) divides a UDWtype, composed by the UWtype integers
58 HIGH_NUMERATOR and LOW_NUMERATOR, by DENOMINATOR and places the quotient
59 in QUOTIENT and the remainder in REMAINDER. HIGH_NUMERATOR must be less
60 than DENOMINATOR for correct operation. If, in addition, the most
61 significant bit of DENOMINATOR must be 1, then the pre-processor symbol
62 UDIV_NEEDS_NORMALIZATION is defined to 1.
63
64 4) sdiv_qrnnd(quotient, remainder, high_numerator, low_numerator,
65 denominator). Like udiv_qrnnd but the numbers are signed. The quotient
66 is rounded towards 0.
67
68 5) count_leading_zeros(count, x) counts the number of zero-bits from the
69 msb to the first nonzero bit in the UWtype X. This is the number of
70 steps X needs to be shifted left to set the msb. Undefined for X == 0,
71 unless the symbol COUNT_LEADING_ZEROS_0 is defined to some value.
72
73 6) count_trailing_zeros(count, x) like count_leading_zeros, but counts
74 from the least significant end.
75
76 7) add_ssaaaa(high_sum, low_sum, high_addend_1, low_addend_1,
77 high_addend_2, low_addend_2) adds two UWtype integers, composed by
78 HIGH_ADDEND_1 and LOW_ADDEND_1, and HIGH_ADDEND_2 and LOW_ADDEND_2
79 respectively. The result is placed in HIGH_SUM and LOW_SUM. Overflow
80 (i.e. carry out) is not stored anywhere, and is lost.
81
82 8) sub_ddmmss(high_difference, low_difference, high_minuend, low_minuend,
83 high_subtrahend, low_subtrahend) subtracts two two-word UWtype integers,
84 composed by HIGH_MINUEND_1 and LOW_MINUEND_1, and HIGH_SUBTRAHEND_2 and
85 LOW_SUBTRAHEND_2 respectively. The result is placed in HIGH_DIFFERENCE
86 and LOW_DIFFERENCE. Overflow (i.e. carry out) is not stored anywhere,
87 and is lost.
88
89 If any of these macros are left undefined for a particular CPU,
90 C macros are used. */
91
92 /* The CPUs come in alphabetical order below.
93
94 Please add support for more CPUs here, or improve the current support
95 for the CPUs below!
96 (E.g. WE32100, IBM360.) */
97
98 #if defined (__GNUC__) && !defined (NO_ASM)
99
100 /* We sometimes need to clobber "cc" with gcc2, but that would not be
101 understood by gcc1. Use cpp to avoid major code duplication. */
102 #if __GNUC__ < 2
103 #define __CLOBBER_CC
104 #define __AND_CLOBBER_CC
105 #else /* __GNUC__ >= 2 */
106 #define __CLOBBER_CC : "cc"
107 #define __AND_CLOBBER_CC , "cc"
108 #endif /* __GNUC__ < 2 */
109
110 #if defined (__alpha) && W_TYPE_SIZE == 64
111 #define umul_ppmm(ph, pl, m0, m1) \
112 do { \
113 UDItype __m0 = (m0), __m1 = (m1); \
114 __asm__ ("umulh %r1,%2,%0" \
115 : "=r" ((UDItype) ph) \
116 : "%rJ" (__m0), \
117 "rI" (__m1)); \
118 (pl) = __m0 * __m1; \
119 } while (0)
120 #define UMUL_TIME 46
121 #ifndef LONGLONG_STANDALONE
122 #define udiv_qrnnd(q, r, n1, n0, d) \
123 do { UDItype __r; \
124 (q) = __udiv_qrnnd (&__r, (n1), (n0), (d)); \
125 (r) = __r; \
126 } while (0)
127 extern UDItype __udiv_qrnnd (UDItype *, UDItype, UDItype, UDItype);
128 #define UDIV_TIME 220
129 #endif /* LONGLONG_STANDALONE */
130 #ifdef __alpha_cix__
131 #define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clzl (X))
132 #define count_trailing_zeros(COUNT,X) ((COUNT) = __builtin_ctzl (X))
133 #define COUNT_LEADING_ZEROS_0 64
134 #else
135 extern const UQItype __clz_tab[] ATTRIBUTE_HIDDEN;
136 #define count_leading_zeros(COUNT,X) \
137 do { \
138 UDItype __xr = (X), __t, __a; \
139 __t = __builtin_alpha_cmpbge (0, __xr); \
140 __a = __clz_tab[__t ^ 0xff] - 1; \
141 __t = __builtin_alpha_extbl (__xr, __a); \
142 (COUNT) = 64 - (__clz_tab[__t] + __a*8); \
143 } while (0)
144 #define count_trailing_zeros(COUNT,X) \
145 do { \
146 UDItype __xr = (X), __t, __a; \
147 __t = __builtin_alpha_cmpbge (0, __xr); \
148 __t = ~__t & -~__t; \
149 __a = ((__t & 0xCC) != 0) * 2; \
150 __a += ((__t & 0xF0) != 0) * 4; \
151 __a += ((__t & 0xAA) != 0); \
152 __t = __builtin_alpha_extbl (__xr, __a); \
153 __a <<= 3; \
154 __t &= -__t; \
155 __a += ((__t & 0xCC) != 0) * 2; \
156 __a += ((__t & 0xF0) != 0) * 4; \
157 __a += ((__t & 0xAA) != 0); \
158 (COUNT) = __a; \
159 } while (0)
160 #endif /* __alpha_cix__ */
161 #endif /* __alpha */
162
163 #if defined (__arc__) && W_TYPE_SIZE == 32
164 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
165 __asm__ ("add.f %1, %4, %5\n\tadc %0, %2, %3" \
166 : "=r" ((USItype) (sh)), \
167 "=&r" ((USItype) (sl)) \
168 : "%r" ((USItype) (ah)), \
169 "rIJ" ((USItype) (bh)), \
170 "%r" ((USItype) (al)), \
171 "rIJ" ((USItype) (bl)))
172 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
173 __asm__ ("sub.f %1, %4, %5\n\tsbc %0, %2, %3" \
174 : "=r" ((USItype) (sh)), \
175 "=&r" ((USItype) (sl)) \
176 : "r" ((USItype) (ah)), \
177 "rIJ" ((USItype) (bh)), \
178 "r" ((USItype) (al)), \
179 "rIJ" ((USItype) (bl)))
180 /* Call libgcc routine. */
181 #define umul_ppmm(w1, w0, u, v) \
182 do { \
183 DWunion __w; \
184 __w.ll = __umulsidi3 (u, v); \
185 w1 = __w.s.high; \
186 w0 = __w.s.low; \
187 } while (0)
188 #define __umulsidi3 __umulsidi3
189 UDItype __umulsidi3 (USItype, USItype);
190 #endif
191
192 #if defined (__arm__) && W_TYPE_SIZE == 32
193 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
194 __asm__ ("adds %1, %4, %5\n\tadc %0, %2, %3" \
195 : "=r" ((USItype) (sh)), \
196 "=&r" ((USItype) (sl)) \
197 : "%r" ((USItype) (ah)), \
198 "rI" ((USItype) (bh)), \
199 "%r" ((USItype) (al)), \
200 "rI" ((USItype) (bl)))
201 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
202 __asm__ ("subs %1, %4, %5\n\tsbc %0, %2, %3" \
203 : "=r" ((USItype) (sh)), \
204 "=&r" ((USItype) (sl)) \
205 : "r" ((USItype) (ah)), \
206 "rI" ((USItype) (bh)), \
207 "r" ((USItype) (al)), \
208 "rI" ((USItype) (bl)))
209 #define umul_ppmm(xh, xl, a, b) \
210 {register USItype __t0, __t1, __t2; \
211 __asm__ ("%@ Inlined umul_ppmm\n" \
212 " mov %2, %5, lsr #16\n" \
213 " mov %0, %6, lsr #16\n" \
214 " bic %3, %5, %2, lsl #16\n" \
215 " bic %4, %6, %0, lsl #16\n" \
216 " mul %1, %3, %4\n" \
217 " mul %4, %2, %4\n" \
218 " mul %3, %0, %3\n" \
219 " mul %0, %2, %0\n" \
220 " adds %3, %4, %3\n" \
221 " addcs %0, %0, #65536\n" \
222 " adds %1, %1, %3, lsl #16\n" \
223 " adc %0, %0, %3, lsr #16" \
224 : "=&r" ((USItype) (xh)), \
225 "=r" ((USItype) (xl)), \
226 "=&r" (__t0), "=&r" (__t1), "=r" (__t2) \
227 : "r" ((USItype) (a)), \
228 "r" ((USItype) (b)));}
229 #define UMUL_TIME 20
230 #define UDIV_TIME 100
231 #endif /* __arm__ */
232
233 #if defined (__hppa) && W_TYPE_SIZE == 32
234 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
235 __asm__ ("add %4,%5,%1\n\taddc %2,%3,%0" \
236 : "=r" ((USItype) (sh)), \
237 "=&r" ((USItype) (sl)) \
238 : "%rM" ((USItype) (ah)), \
239 "rM" ((USItype) (bh)), \
240 "%rM" ((USItype) (al)), \
241 "rM" ((USItype) (bl)))
242 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
243 __asm__ ("sub %4,%5,%1\n\tsubb %2,%3,%0" \
244 : "=r" ((USItype) (sh)), \
245 "=&r" ((USItype) (sl)) \
246 : "rM" ((USItype) (ah)), \
247 "rM" ((USItype) (bh)), \
248 "rM" ((USItype) (al)), \
249 "rM" ((USItype) (bl)))
250 #if defined (_PA_RISC1_1)
251 #define umul_ppmm(w1, w0, u, v) \
252 do { \
253 union \
254 { \
255 UDItype __f; \
256 struct {USItype __w1, __w0;} __w1w0; \
257 } __t; \
258 __asm__ ("xmpyu %1,%2,%0" \
259 : "=x" (__t.__f) \
260 : "x" ((USItype) (u)), \
261 "x" ((USItype) (v))); \
262 (w1) = __t.__w1w0.__w1; \
263 (w0) = __t.__w1w0.__w0; \
264 } while (0)
265 #define UMUL_TIME 8
266 #else
267 #define UMUL_TIME 30
268 #endif
269 #define UDIV_TIME 40
270 #define count_leading_zeros(count, x) \
271 do { \
272 USItype __tmp; \
273 __asm__ ( \
274 "ldi 1,%0\n" \
275 " extru,= %1,15,16,%%r0 ; Bits 31..16 zero?\n" \
276 " extru,tr %1,15,16,%1 ; No. Shift down, skip add.\n"\
277 " ldo 16(%0),%0 ; Yes. Perform add.\n" \
278 " extru,= %1,23,8,%%r0 ; Bits 15..8 zero?\n" \
279 " extru,tr %1,23,8,%1 ; No. Shift down, skip add.\n"\
280 " ldo 8(%0),%0 ; Yes. Perform add.\n" \
281 " extru,= %1,27,4,%%r0 ; Bits 7..4 zero?\n" \
282 " extru,tr %1,27,4,%1 ; No. Shift down, skip add.\n"\
283 " ldo 4(%0),%0 ; Yes. Perform add.\n" \
284 " extru,= %1,29,2,%%r0 ; Bits 3..2 zero?\n" \
285 " extru,tr %1,29,2,%1 ; No. Shift down, skip add.\n"\
286 " ldo 2(%0),%0 ; Yes. Perform add.\n" \
287 " extru %1,30,1,%1 ; Extract bit 1.\n" \
288 " sub %0,%1,%0 ; Subtract it.\n" \
289 : "=r" (count), "=r" (__tmp) : "1" (x)); \
290 } while (0)
291 #endif
292
293 #if (defined (__i370__) || defined (__s390__) || defined (__mvs__)) && W_TYPE_SIZE == 32
294 #define smul_ppmm(xh, xl, m0, m1) \
295 do { \
296 union {DItype __ll; \
297 struct {USItype __h, __l;} __i; \
298 } __x; \
299 __asm__ ("lr %N0,%1\n\tmr %0,%2" \
300 : "=&r" (__x.__ll) \
301 : "r" (m0), "r" (m1)); \
302 (xh) = __x.__i.__h; (xl) = __x.__i.__l; \
303 } while (0)
304 #define sdiv_qrnnd(q, r, n1, n0, d) \
305 do { \
306 union {DItype __ll; \
307 struct {USItype __h, __l;} __i; \
308 } __x; \
309 __x.__i.__h = n1; __x.__i.__l = n0; \
310 __asm__ ("dr %0,%2" \
311 : "=r" (__x.__ll) \
312 : "0" (__x.__ll), "r" (d)); \
313 (q) = __x.__i.__l; (r) = __x.__i.__h; \
314 } while (0)
315 #endif
316
317 #if (defined (__i386__) || defined (__i486__)) && W_TYPE_SIZE == 32
318 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
319 __asm__ ("addl %5,%1\n\tadcl %3,%0" \
320 : "=r" ((USItype) (sh)), \
321 "=&r" ((USItype) (sl)) \
322 : "%0" ((USItype) (ah)), \
323 "g" ((USItype) (bh)), \
324 "%1" ((USItype) (al)), \
325 "g" ((USItype) (bl)))
326 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
327 __asm__ ("subl %5,%1\n\tsbbl %3,%0" \
328 : "=r" ((USItype) (sh)), \
329 "=&r" ((USItype) (sl)) \
330 : "0" ((USItype) (ah)), \
331 "g" ((USItype) (bh)), \
332 "1" ((USItype) (al)), \
333 "g" ((USItype) (bl)))
334 #define umul_ppmm(w1, w0, u, v) \
335 __asm__ ("mull %3" \
336 : "=a" ((USItype) (w0)), \
337 "=d" ((USItype) (w1)) \
338 : "%0" ((USItype) (u)), \
339 "rm" ((USItype) (v)))
340 #define udiv_qrnnd(q, r, n1, n0, dv) \
341 __asm__ ("divl %4" \
342 : "=a" ((USItype) (q)), \
343 "=d" ((USItype) (r)) \
344 : "0" ((USItype) (n0)), \
345 "1" ((USItype) (n1)), \
346 "rm" ((USItype) (dv)))
347 #define count_leading_zeros(count, x) \
348 do { \
349 USItype __cbtmp; \
350 __asm__ ("bsrl %1,%0" \
351 : "=r" (__cbtmp) : "rm" ((USItype) (x))); \
352 (count) = __cbtmp ^ 31; \
353 } while (0)
354 #define count_trailing_zeros(count, x) \
355 __asm__ ("bsfl %1,%0" : "=r" (count) : "rm" ((USItype)(x)))
356 #define UMUL_TIME 40
357 #define UDIV_TIME 40
358 #endif /* 80x86 */
359
360 #if defined (__i960__) && W_TYPE_SIZE == 32
361 #define umul_ppmm(w1, w0, u, v) \
362 ({union {UDItype __ll; \
363 struct {USItype __l, __h;} __i; \
364 } __xx; \
365 __asm__ ("emul %2,%1,%0" \
366 : "=d" (__xx.__ll) \
367 : "%dI" ((USItype) (u)), \
368 "dI" ((USItype) (v))); \
369 (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
370 #define __umulsidi3(u, v) \
371 ({UDItype __w; \
372 __asm__ ("emul %2,%1,%0" \
373 : "=d" (__w) \
374 : "%dI" ((USItype) (u)), \
375 "dI" ((USItype) (v))); \
376 __w; })
377 #endif /* __i960__ */
378
379 #if defined (__M32R__) && W_TYPE_SIZE == 32
380 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
381 /* The cmp clears the condition bit. */ \
382 __asm__ ("cmp %0,%0\n\taddx %%5,%1\n\taddx %%3,%0" \
383 : "=r" ((USItype) (sh)), \
384 "=&r" ((USItype) (sl)) \
385 : "%0" ((USItype) (ah)), \
386 "r" ((USItype) (bh)), \
387 "%1" ((USItype) (al)), \
388 "r" ((USItype) (bl)) \
389 : "cbit")
390 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
391 /* The cmp clears the condition bit. */ \
392 __asm__ ("cmp %0,%0\n\tsubx %5,%1\n\tsubx %3,%0" \
393 : "=r" ((USItype) (sh)), \
394 "=&r" ((USItype) (sl)) \
395 : "0" ((USItype) (ah)), \
396 "r" ((USItype) (bh)), \
397 "1" ((USItype) (al)), \
398 "r" ((USItype) (bl)) \
399 : "cbit")
400 #endif /* __M32R__ */
401
402 #if defined (__mc68000__) && W_TYPE_SIZE == 32
403 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
404 __asm__ ("add%.l %5,%1\n\taddx%.l %3,%0" \
405 : "=d" ((USItype) (sh)), \
406 "=&d" ((USItype) (sl)) \
407 : "%0" ((USItype) (ah)), \
408 "d" ((USItype) (bh)), \
409 "%1" ((USItype) (al)), \
410 "g" ((USItype) (bl)))
411 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
412 __asm__ ("sub%.l %5,%1\n\tsubx%.l %3,%0" \
413 : "=d" ((USItype) (sh)), \
414 "=&d" ((USItype) (sl)) \
415 : "0" ((USItype) (ah)), \
416 "d" ((USItype) (bh)), \
417 "1" ((USItype) (al)), \
418 "g" ((USItype) (bl)))
419
420 /* The '020, '030, '040 and CPU32 have 32x32->64 and 64/32->32q-32r. */
421 #if defined (__mc68020__) || defined(mc68020) \
422 || defined(__mc68030__) || defined(mc68030) \
423 || defined(__mc68040__) || defined(mc68040) \
424 || defined(__mcpu32__) || defined(mcpu32)
425 #define umul_ppmm(w1, w0, u, v) \
426 __asm__ ("mulu%.l %3,%1:%0" \
427 : "=d" ((USItype) (w0)), \
428 "=d" ((USItype) (w1)) \
429 : "%0" ((USItype) (u)), \
430 "dmi" ((USItype) (v)))
431 #define UMUL_TIME 45
432 #define udiv_qrnnd(q, r, n1, n0, d) \
433 __asm__ ("divu%.l %4,%1:%0" \
434 : "=d" ((USItype) (q)), \
435 "=d" ((USItype) (r)) \
436 : "0" ((USItype) (n0)), \
437 "1" ((USItype) (n1)), \
438 "dmi" ((USItype) (d)))
439 #define UDIV_TIME 90
440 #define sdiv_qrnnd(q, r, n1, n0, d) \
441 __asm__ ("divs%.l %4,%1:%0" \
442 : "=d" ((USItype) (q)), \
443 "=d" ((USItype) (r)) \
444 : "0" ((USItype) (n0)), \
445 "1" ((USItype) (n1)), \
446 "dmi" ((USItype) (d)))
447
448 #else /* not mc68020 */
449 #if !defined(__mcf5200__)
450 /* %/ inserts REGISTER_PREFIX, %# inserts IMMEDIATE_PREFIX. */
451 #define umul_ppmm(xh, xl, a, b) \
452 __asm__ ("| Inlined umul_ppmm\n" \
453 " move%.l %2,%/d0\n" \
454 " move%.l %3,%/d1\n" \
455 " move%.l %/d0,%/d2\n" \
456 " swap %/d0\n" \
457 " move%.l %/d1,%/d3\n" \
458 " swap %/d1\n" \
459 " move%.w %/d2,%/d4\n" \
460 " mulu %/d3,%/d4\n" \
461 " mulu %/d1,%/d2\n" \
462 " mulu %/d0,%/d3\n" \
463 " mulu %/d0,%/d1\n" \
464 " move%.l %/d4,%/d0\n" \
465 " eor%.w %/d0,%/d0\n" \
466 " swap %/d0\n" \
467 " add%.l %/d0,%/d2\n" \
468 " add%.l %/d3,%/d2\n" \
469 " jcc 1f\n" \
470 " add%.l %#65536,%/d1\n" \
471 "1: swap %/d2\n" \
472 " moveq %#0,%/d0\n" \
473 " move%.w %/d2,%/d0\n" \
474 " move%.w %/d4,%/d2\n" \
475 " move%.l %/d2,%1\n" \
476 " add%.l %/d1,%/d0\n" \
477 " move%.l %/d0,%0" \
478 : "=g" ((USItype) (xh)), \
479 "=g" ((USItype) (xl)) \
480 : "g" ((USItype) (a)), \
481 "g" ((USItype) (b)) \
482 : "d0", "d1", "d2", "d3", "d4")
483 #define UMUL_TIME 100
484 #define UDIV_TIME 400
485 #endif /* not mcf5200 */
486 #endif /* not mc68020 */
487
488 /* The '020, '030, '040 and '060 have bitfield insns. */
489 #if defined (__mc68020__) || defined(mc68020) \
490 || defined(__mc68030__) || defined(mc68030) \
491 || defined(__mc68040__) || defined(mc68040) \
492 || defined(__mc68060__) || defined(mc68060)
493 #define count_leading_zeros(count, x) \
494 __asm__ ("bfffo %1{%b2:%b2},%0" \
495 : "=d" ((USItype) (count)) \
496 : "od" ((USItype) (x)), "n" (0))
497 #endif
498 #endif /* mc68000 */
499
500 #if defined (__m88000__) && W_TYPE_SIZE == 32
501 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
502 __asm__ ("addu.co %1,%r4,%r5\n\taddu.ci %0,%r2,%r3" \
503 : "=r" ((USItype) (sh)), \
504 "=&r" ((USItype) (sl)) \
505 : "%rJ" ((USItype) (ah)), \
506 "rJ" ((USItype) (bh)), \
507 "%rJ" ((USItype) (al)), \
508 "rJ" ((USItype) (bl)))
509 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
510 __asm__ ("subu.co %1,%r4,%r5\n\tsubu.ci %0,%r2,%r3" \
511 : "=r" ((USItype) (sh)), \
512 "=&r" ((USItype) (sl)) \
513 : "rJ" ((USItype) (ah)), \
514 "rJ" ((USItype) (bh)), \
515 "rJ" ((USItype) (al)), \
516 "rJ" ((USItype) (bl)))
517 #define count_leading_zeros(count, x) \
518 do { \
519 USItype __cbtmp; \
520 __asm__ ("ff1 %0,%1" \
521 : "=r" (__cbtmp) \
522 : "r" ((USItype) (x))); \
523 (count) = __cbtmp ^ 31; \
524 } while (0)
525 #define COUNT_LEADING_ZEROS_0 63 /* sic */
526 #if defined (__mc88110__)
527 #define umul_ppmm(wh, wl, u, v) \
528 do { \
529 union {UDItype __ll; \
530 struct {USItype __h, __l;} __i; \
531 } __xx; \
532 __asm__ ("mulu.d %0,%1,%2" \
533 : "=r" (__xx.__ll) \
534 : "r" ((USItype) (u)), \
535 "r" ((USItype) (v))); \
536 (wh) = __xx.__i.__h; \
537 (wl) = __xx.__i.__l; \
538 } while (0)
539 #define udiv_qrnnd(q, r, n1, n0, d) \
540 ({union {UDItype __ll; \
541 struct {USItype __h, __l;} __i; \
542 } __xx; \
543 USItype __q; \
544 __xx.__i.__h = (n1); __xx.__i.__l = (n0); \
545 __asm__ ("divu.d %0,%1,%2" \
546 : "=r" (__q) \
547 : "r" (__xx.__ll), \
548 "r" ((USItype) (d))); \
549 (r) = (n0) - __q * (d); (q) = __q; })
550 #define UMUL_TIME 5
551 #define UDIV_TIME 25
552 #else
553 #define UMUL_TIME 17
554 #define UDIV_TIME 150
555 #endif /* __mc88110__ */
556 #endif /* __m88000__ */
557
558 #if defined (__mips__) && W_TYPE_SIZE == 32
559 #define umul_ppmm(w1, w0, u, v) \
560 __asm__ ("multu %2,%3" \
561 : "=l" ((USItype) (w0)), \
562 "=h" ((USItype) (w1)) \
563 : "d" ((USItype) (u)), \
564 "d" ((USItype) (v)))
565 #define UMUL_TIME 10
566 #define UDIV_TIME 100
567 #endif /* __mips__ */
568
569 #if defined (__ns32000__) && W_TYPE_SIZE == 32
570 #define umul_ppmm(w1, w0, u, v) \
571 ({union {UDItype __ll; \
572 struct {USItype __l, __h;} __i; \
573 } __xx; \
574 __asm__ ("meid %2,%0" \
575 : "=g" (__xx.__ll) \
576 : "%0" ((USItype) (u)), \
577 "g" ((USItype) (v))); \
578 (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
579 #define __umulsidi3(u, v) \
580 ({UDItype __w; \
581 __asm__ ("meid %2,%0" \
582 : "=g" (__w) \
583 : "%0" ((USItype) (u)), \
584 "g" ((USItype) (v))); \
585 __w; })
586 #define udiv_qrnnd(q, r, n1, n0, d) \
587 ({union {UDItype __ll; \
588 struct {USItype __l, __h;} __i; \
589 } __xx; \
590 __xx.__i.__h = (n1); __xx.__i.__l = (n0); \
591 __asm__ ("deid %2,%0" \
592 : "=g" (__xx.__ll) \
593 : "0" (__xx.__ll), \
594 "g" ((USItype) (d))); \
595 (r) = __xx.__i.__l; (q) = __xx.__i.__h; })
596 #define count_trailing_zeros(count,x) \
597 do { \
598 __asm__ ("ffsd %2,%0" \
599 : "=r" ((USItype) (count)) \
600 : "0" ((USItype) 0), \
601 "r" ((USItype) (x))); \
602 } while (0)
603 #endif /* __ns32000__ */
604
605 /* FIXME: We should test _IBMR2 here when we add assembly support for the
606 system vendor compilers.
607 FIXME: What's needed for gcc PowerPC VxWorks? __vxworks__ is not good
608 enough, since that hits ARM and m68k too. */
609 #if (defined (_ARCH_PPC) /* AIX */ \
610 || defined (_ARCH_PWR) /* AIX */ \
611 || defined (_ARCH_COM) /* AIX */ \
612 || defined (__powerpc__) /* gcc */ \
613 || defined (__POWERPC__) /* BEOS */ \
614 || defined (__ppc__) /* Darwin */ \
615 || defined (PPC) /* GNU/Linux, SysV */ \
616 ) && W_TYPE_SIZE == 32
617 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
618 do { \
619 if (__builtin_constant_p (bh) && (bh) == 0) \
620 __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{aze|addze} %0,%2" \
621 : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
622 else if (__builtin_constant_p (bh) && (bh) == ~(USItype) 0) \
623 __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{ame|addme} %0,%2" \
624 : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
625 else \
626 __asm__ ("{a%I5|add%I5c} %1,%4,%5\n\t{ae|adde} %0,%2,%3" \
627 : "=r" (sh), "=&r" (sl) \
628 : "%r" (ah), "r" (bh), "%r" (al), "rI" (bl)); \
629 } while (0)
630 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
631 do { \
632 if (__builtin_constant_p (ah) && (ah) == 0) \
633 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfze|subfze} %0,%2" \
634 : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
635 else if (__builtin_constant_p (ah) && (ah) == ~(USItype) 0) \
636 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfme|subfme} %0,%2" \
637 : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
638 else if (__builtin_constant_p (bh) && (bh) == 0) \
639 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{ame|addme} %0,%2" \
640 : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
641 else if (__builtin_constant_p (bh) && (bh) == ~(USItype) 0) \
642 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{aze|addze} %0,%2" \
643 : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
644 else \
645 __asm__ ("{sf%I4|subf%I4c} %1,%5,%4\n\t{sfe|subfe} %0,%3,%2" \
646 : "=r" (sh), "=&r" (sl) \
647 : "r" (ah), "r" (bh), "rI" (al), "r" (bl)); \
648 } while (0)
649 #define count_leading_zeros(count, x) \
650 __asm__ ("{cntlz|cntlzw} %0,%1" : "=r" (count) : "r" (x))
651 #define COUNT_LEADING_ZEROS_0 32
652 #if defined (_ARCH_PPC) || defined (__powerpc__) || defined (__POWERPC__) \
653 || defined (__ppc__) || defined (PPC) || defined (__vxworks__)
654 #define umul_ppmm(ph, pl, m0, m1) \
655 do { \
656 USItype __m0 = (m0), __m1 = (m1); \
657 __asm__ ("mulhwu %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
658 (pl) = __m0 * __m1; \
659 } while (0)
660 #define UMUL_TIME 15
661 #define smul_ppmm(ph, pl, m0, m1) \
662 do { \
663 SItype __m0 = (m0), __m1 = (m1); \
664 __asm__ ("mulhw %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
665 (pl) = __m0 * __m1; \
666 } while (0)
667 #define SMUL_TIME 14
668 #define UDIV_TIME 120
669 #elif defined (_ARCH_PWR)
670 #define UMUL_TIME 8
671 #define smul_ppmm(xh, xl, m0, m1) \
672 __asm__ ("mul %0,%2,%3" : "=r" (xh), "=q" (xl) : "r" (m0), "r" (m1))
673 #define SMUL_TIME 4
674 #define sdiv_qrnnd(q, r, nh, nl, d) \
675 __asm__ ("div %0,%2,%4" : "=r" (q), "=q" (r) : "r" (nh), "1" (nl), "r" (d))
676 #define UDIV_TIME 100
677 #endif
678 #endif /* 32-bit POWER architecture variants. */
679
680 /* We should test _IBMR2 here when we add assembly support for the system
681 vendor compilers. */
682 #if (defined (_ARCH_PPC64) || defined (__powerpc64__)) && W_TYPE_SIZE == 64
683 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
684 do { \
685 if (__builtin_constant_p (bh) && (bh) == 0) \
686 __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{aze|addze} %0,%2" \
687 : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
688 else if (__builtin_constant_p (bh) && (bh) == ~(UDItype) 0) \
689 __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{ame|addme} %0,%2" \
690 : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
691 else \
692 __asm__ ("{a%I5|add%I5c} %1,%4,%5\n\t{ae|adde} %0,%2,%3" \
693 : "=r" (sh), "=&r" (sl) \
694 : "%r" (ah), "r" (bh), "%r" (al), "rI" (bl)); \
695 } while (0)
696 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
697 do { \
698 if (__builtin_constant_p (ah) && (ah) == 0) \
699 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfze|subfze} %0,%2" \
700 : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
701 else if (__builtin_constant_p (ah) && (ah) == ~(UDItype) 0) \
702 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfme|subfme} %0,%2" \
703 : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
704 else if (__builtin_constant_p (bh) && (bh) == 0) \
705 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{ame|addme} %0,%2" \
706 : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
707 else if (__builtin_constant_p (bh) && (bh) == ~(UDItype) 0) \
708 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{aze|addze} %0,%2" \
709 : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
710 else \
711 __asm__ ("{sf%I4|subf%I4c} %1,%5,%4\n\t{sfe|subfe} %0,%3,%2" \
712 : "=r" (sh), "=&r" (sl) \
713 : "r" (ah), "r" (bh), "rI" (al), "r" (bl)); \
714 } while (0)
715 #define count_leading_zeros(count, x) \
716 __asm__ ("cntlzd %0,%1" : "=r" (count) : "r" (x))
717 #define COUNT_LEADING_ZEROS_0 64
718 #define umul_ppmm(ph, pl, m0, m1) \
719 do { \
720 UDItype __m0 = (m0), __m1 = (m1); \
721 __asm__ ("mulhdu %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
722 (pl) = __m0 * __m1; \
723 } while (0)
724 #define UMUL_TIME 15
725 #define smul_ppmm(ph, pl, m0, m1) \
726 do { \
727 DItype __m0 = (m0), __m1 = (m1); \
728 __asm__ ("mulhd %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
729 (pl) = __m0 * __m1; \
730 } while (0)
731 #define SMUL_TIME 14 /* ??? */
732 #define UDIV_TIME 120 /* ??? */
733 #endif /* 64-bit PowerPC. */
734
735 #if defined (__ibm032__) /* RT/ROMP */ && W_TYPE_SIZE == 32
736 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
737 __asm__ ("a %1,%5\n\tae %0,%3" \
738 : "=r" ((USItype) (sh)), \
739 "=&r" ((USItype) (sl)) \
740 : "%0" ((USItype) (ah)), \
741 "r" ((USItype) (bh)), \
742 "%1" ((USItype) (al)), \
743 "r" ((USItype) (bl)))
744 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
745 __asm__ ("s %1,%5\n\tse %0,%3" \
746 : "=r" ((USItype) (sh)), \
747 "=&r" ((USItype) (sl)) \
748 : "0" ((USItype) (ah)), \
749 "r" ((USItype) (bh)), \
750 "1" ((USItype) (al)), \
751 "r" ((USItype) (bl)))
752 #define umul_ppmm(ph, pl, m0, m1) \
753 do { \
754 USItype __m0 = (m0), __m1 = (m1); \
755 __asm__ ( \
756 "s r2,r2\n" \
757 " mts r10,%2\n" \
758 " m r2,%3\n" \
759 " m r2,%3\n" \
760 " m r2,%3\n" \
761 " m r2,%3\n" \
762 " m r2,%3\n" \
763 " m r2,%3\n" \
764 " m r2,%3\n" \
765 " m r2,%3\n" \
766 " m r2,%3\n" \
767 " m r2,%3\n" \
768 " m r2,%3\n" \
769 " m r2,%3\n" \
770 " m r2,%3\n" \
771 " m r2,%3\n" \
772 " m r2,%3\n" \
773 " m r2,%3\n" \
774 " cas %0,r2,r0\n" \
775 " mfs r10,%1" \
776 : "=r" ((USItype) (ph)), \
777 "=r" ((USItype) (pl)) \
778 : "%r" (__m0), \
779 "r" (__m1) \
780 : "r2"); \
781 (ph) += ((((SItype) __m0 >> 31) & __m1) \
782 + (((SItype) __m1 >> 31) & __m0)); \
783 } while (0)
784 #define UMUL_TIME 20
785 #define UDIV_TIME 200
786 #define count_leading_zeros(count, x) \
787 do { \
788 if ((x) >= 0x10000) \
789 __asm__ ("clz %0,%1" \
790 : "=r" ((USItype) (count)) \
791 : "r" ((USItype) (x) >> 16)); \
792 else \
793 { \
794 __asm__ ("clz %0,%1" \
795 : "=r" ((USItype) (count)) \
796 : "r" ((USItype) (x))); \
797 (count) += 16; \
798 } \
799 } while (0)
800 #endif
801
802 #if defined (__sh2__) && W_TYPE_SIZE == 32
803 #define umul_ppmm(w1, w0, u, v) \
804 __asm__ ( \
805 "dmulu.l %2,%3\n\tsts macl,%1\n\tsts mach,%0" \
806 : "=r" ((USItype)(w1)), \
807 "=r" ((USItype)(w0)) \
808 : "r" ((USItype)(u)), \
809 "r" ((USItype)(v)) \
810 : "macl", "mach")
811 #define UMUL_TIME 5
812 #endif
813
814 #if defined (__SH5__) && __SHMEDIA__ && W_TYPE_SIZE == 32
815 #define __umulsidi3(u,v) ((UDItype)(USItype)u*(USItype)v)
816 #define count_leading_zeros(count, x) \
817 do \
818 { \
819 UDItype x_ = (USItype)(x); \
820 SItype c_; \
821 \
822 __asm__ ("nsb %1, %0" : "=r" (c_) : "r" (x_)); \
823 (count) = c_ - 31; \
824 } \
825 while (0)
826 #define COUNT_LEADING_ZEROS_0 32
827 #endif
828
829 #if defined (__sparc__) && !defined (__arch64__) && !defined (__sparcv9) \
830 && W_TYPE_SIZE == 32
831 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
832 __asm__ ("addcc %r4,%5,%1\n\taddx %r2,%3,%0" \
833 : "=r" ((USItype) (sh)), \
834 "=&r" ((USItype) (sl)) \
835 : "%rJ" ((USItype) (ah)), \
836 "rI" ((USItype) (bh)), \
837 "%rJ" ((USItype) (al)), \
838 "rI" ((USItype) (bl)) \
839 __CLOBBER_CC)
840 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
841 __asm__ ("subcc %r4,%5,%1\n\tsubx %r2,%3,%0" \
842 : "=r" ((USItype) (sh)), \
843 "=&r" ((USItype) (sl)) \
844 : "rJ" ((USItype) (ah)), \
845 "rI" ((USItype) (bh)), \
846 "rJ" ((USItype) (al)), \
847 "rI" ((USItype) (bl)) \
848 __CLOBBER_CC)
849 #if defined (__sparc_v8__)
850 #define umul_ppmm(w1, w0, u, v) \
851 __asm__ ("umul %2,%3,%1;rd %%y,%0" \
852 : "=r" ((USItype) (w1)), \
853 "=r" ((USItype) (w0)) \
854 : "r" ((USItype) (u)), \
855 "r" ((USItype) (v)))
856 #define udiv_qrnnd(__q, __r, __n1, __n0, __d) \
857 __asm__ ("mov %2,%%y;nop;nop;nop;udiv %3,%4,%0;umul %0,%4,%1;sub %3,%1,%1"\
858 : "=&r" ((USItype) (__q)), \
859 "=&r" ((USItype) (__r)) \
860 : "r" ((USItype) (__n1)), \
861 "r" ((USItype) (__n0)), \
862 "r" ((USItype) (__d)))
863 #else
864 #if defined (__sparclite__)
865 /* This has hardware multiply but not divide. It also has two additional
866 instructions scan (ffs from high bit) and divscc. */
867 #define umul_ppmm(w1, w0, u, v) \
868 __asm__ ("umul %2,%3,%1;rd %%y,%0" \
869 : "=r" ((USItype) (w1)), \
870 "=r" ((USItype) (w0)) \
871 : "r" ((USItype) (u)), \
872 "r" ((USItype) (v)))
873 #define udiv_qrnnd(q, r, n1, n0, d) \
874 __asm__ ("! Inlined udiv_qrnnd\n" \
875 " wr %%g0,%2,%%y ! Not a delayed write for sparclite\n" \
876 " tst %%g0\n" \
877 " divscc %3,%4,%%g1\n" \
878 " divscc %%g1,%4,%%g1\n" \
879 " divscc %%g1,%4,%%g1\n" \
880 " divscc %%g1,%4,%%g1\n" \
881 " divscc %%g1,%4,%%g1\n" \
882 " divscc %%g1,%4,%%g1\n" \
883 " divscc %%g1,%4,%%g1\n" \
884 " divscc %%g1,%4,%%g1\n" \
885 " divscc %%g1,%4,%%g1\n" \
886 " divscc %%g1,%4,%%g1\n" \
887 " divscc %%g1,%4,%%g1\n" \
888 " divscc %%g1,%4,%%g1\n" \
889 " divscc %%g1,%4,%%g1\n" \
890 " divscc %%g1,%4,%%g1\n" \
891 " divscc %%g1,%4,%%g1\n" \
892 " divscc %%g1,%4,%%g1\n" \
893 " divscc %%g1,%4,%%g1\n" \
894 " divscc %%g1,%4,%%g1\n" \
895 " divscc %%g1,%4,%%g1\n" \
896 " divscc %%g1,%4,%%g1\n" \
897 " divscc %%g1,%4,%%g1\n" \
898 " divscc %%g1,%4,%%g1\n" \
899 " divscc %%g1,%4,%%g1\n" \
900 " divscc %%g1,%4,%%g1\n" \
901 " divscc %%g1,%4,%%g1\n" \
902 " divscc %%g1,%4,%%g1\n" \
903 " divscc %%g1,%4,%%g1\n" \
904 " divscc %%g1,%4,%%g1\n" \
905 " divscc %%g1,%4,%%g1\n" \
906 " divscc %%g1,%4,%%g1\n" \
907 " divscc %%g1,%4,%%g1\n" \
908 " divscc %%g1,%4,%0\n" \
909 " rd %%y,%1\n" \
910 " bl,a 1f\n" \
911 " add %1,%4,%1\n" \
912 "1: ! End of inline udiv_qrnnd" \
913 : "=r" ((USItype) (q)), \
914 "=r" ((USItype) (r)) \
915 : "r" ((USItype) (n1)), \
916 "r" ((USItype) (n0)), \
917 "rI" ((USItype) (d)) \
918 : "g1" __AND_CLOBBER_CC)
919 #define UDIV_TIME 37
920 #define count_leading_zeros(count, x) \
921 do { \
922 __asm__ ("scan %1,1,%0" \
923 : "=r" ((USItype) (count)) \
924 : "r" ((USItype) (x))); \
925 } while (0)
926 /* Early sparclites return 63 for an argument of 0, but they warn that future
927 implementations might change this. Therefore, leave COUNT_LEADING_ZEROS_0
928 undefined. */
929 #else
930 /* SPARC without integer multiplication and divide instructions.
931 (i.e. at least Sun4/20,40,60,65,75,110,260,280,330,360,380,470,490) */
932 #define umul_ppmm(w1, w0, u, v) \
933 __asm__ ("! Inlined umul_ppmm\n" \
934 " wr %%g0,%2,%%y ! SPARC has 0-3 delay insn after a wr\n"\
935 " sra %3,31,%%o5 ! Don't move this insn\n" \
936 " and %2,%%o5,%%o5 ! Don't move this insn\n" \
937 " andcc %%g0,0,%%g1 ! Don't move this insn\n" \
938 " mulscc %%g1,%3,%%g1\n" \
939 " mulscc %%g1,%3,%%g1\n" \
940 " mulscc %%g1,%3,%%g1\n" \
941 " mulscc %%g1,%3,%%g1\n" \
942 " mulscc %%g1,%3,%%g1\n" \
943 " mulscc %%g1,%3,%%g1\n" \
944 " mulscc %%g1,%3,%%g1\n" \
945 " mulscc %%g1,%3,%%g1\n" \
946 " mulscc %%g1,%3,%%g1\n" \
947 " mulscc %%g1,%3,%%g1\n" \
948 " mulscc %%g1,%3,%%g1\n" \
949 " mulscc %%g1,%3,%%g1\n" \
950 " mulscc %%g1,%3,%%g1\n" \
951 " mulscc %%g1,%3,%%g1\n" \
952 " mulscc %%g1,%3,%%g1\n" \
953 " mulscc %%g1,%3,%%g1\n" \
954 " mulscc %%g1,%3,%%g1\n" \
955 " mulscc %%g1,%3,%%g1\n" \
956 " mulscc %%g1,%3,%%g1\n" \
957 " mulscc %%g1,%3,%%g1\n" \
958 " mulscc %%g1,%3,%%g1\n" \
959 " mulscc %%g1,%3,%%g1\n" \
960 " mulscc %%g1,%3,%%g1\n" \
961 " mulscc %%g1,%3,%%g1\n" \
962 " mulscc %%g1,%3,%%g1\n" \
963 " mulscc %%g1,%3,%%g1\n" \
964 " mulscc %%g1,%3,%%g1\n" \
965 " mulscc %%g1,%3,%%g1\n" \
966 " mulscc %%g1,%3,%%g1\n" \
967 " mulscc %%g1,%3,%%g1\n" \
968 " mulscc %%g1,%3,%%g1\n" \
969 " mulscc %%g1,%3,%%g1\n" \
970 " mulscc %%g1,0,%%g1\n" \
971 " add %%g1,%%o5,%0\n" \
972 " rd %%y,%1" \
973 : "=r" ((USItype) (w1)), \
974 "=r" ((USItype) (w0)) \
975 : "%rI" ((USItype) (u)), \
976 "r" ((USItype) (v)) \
977 : "g1", "o5" __AND_CLOBBER_CC)
978 #define UMUL_TIME 39 /* 39 instructions */
979 /* It's quite necessary to add this much assembler for the sparc.
980 The default udiv_qrnnd (in C) is more than 10 times slower! */
981 #define udiv_qrnnd(__q, __r, __n1, __n0, __d) \
982 __asm__ ("! Inlined udiv_qrnnd\n" \
983 " mov 32,%%g1\n" \
984 " subcc %1,%2,%%g0\n" \
985 "1: bcs 5f\n" \
986 " addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n" \
987 " sub %1,%2,%1 ! this kills msb of n\n" \
988 " addx %1,%1,%1 ! so this can't give carry\n" \
989 " subcc %%g1,1,%%g1\n" \
990 "2: bne 1b\n" \
991 " subcc %1,%2,%%g0\n" \
992 " bcs 3f\n" \
993 " addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n" \
994 " b 3f\n" \
995 " sub %1,%2,%1 ! this kills msb of n\n" \
996 "4: sub %1,%2,%1\n" \
997 "5: addxcc %1,%1,%1\n" \
998 " bcc 2b\n" \
999 " subcc %%g1,1,%%g1\n" \
1000 "! Got carry from n. Subtract next step to cancel this carry.\n" \
1001 " bne 4b\n" \
1002 " addcc %0,%0,%0 ! shift n1n0 and a 0-bit in lsb\n" \
1003 " sub %1,%2,%1\n" \
1004 "3: xnor %0,0,%0\n" \
1005 " ! End of inline udiv_qrnnd" \
1006 : "=&r" ((USItype) (__q)), \
1007 "=&r" ((USItype) (__r)) \
1008 : "r" ((USItype) (__d)), \
1009 "1" ((USItype) (__n1)), \
1010 "0" ((USItype) (__n0)) : "g1" __AND_CLOBBER_CC)
1011 #define UDIV_TIME (3+7*32) /* 7 instructions/iteration. 32 iterations. */
1012 #endif /* __sparclite__ */
1013 #endif /* __sparc_v8__ */
1014 #endif /* sparc32 */
1015
1016 #if ((defined (__sparc__) && defined (__arch64__)) || defined (__sparcv9)) \
1017 && W_TYPE_SIZE == 64
1018 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1019 __asm__ ("addcc %r4,%5,%1\n\t" \
1020 "add %r2,%3,%0\n\t" \
1021 "bcs,a,pn %%xcc, 1f\n\t" \
1022 "add %0, 1, %0\n" \
1023 "1:" \
1024 : "=r" ((UDItype)(sh)), \
1025 "=&r" ((UDItype)(sl)) \
1026 : "%rJ" ((UDItype)(ah)), \
1027 "rI" ((UDItype)(bh)), \
1028 "%rJ" ((UDItype)(al)), \
1029 "rI" ((UDItype)(bl)) \
1030 __CLOBBER_CC)
1031
1032 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1033 __asm__ ("subcc %r4,%5,%1\n\t" \
1034 "sub %r2,%3,%0\n\t" \
1035 "bcs,a,pn %%xcc, 1f\n\t" \
1036 "sub %0, 1, %0\n\t" \
1037 "1:" \
1038 : "=r" ((UDItype)(sh)), \
1039 "=&r" ((UDItype)(sl)) \
1040 : "rJ" ((UDItype)(ah)), \
1041 "rI" ((UDItype)(bh)), \
1042 "rJ" ((UDItype)(al)), \
1043 "rI" ((UDItype)(bl)) \
1044 __CLOBBER_CC)
1045
1046 #define umul_ppmm(wh, wl, u, v) \
1047 do { \
1048 UDItype tmp1, tmp2, tmp3, tmp4; \
1049 __asm__ __volatile__ ( \
1050 "srl %7,0,%3\n\t" \
1051 "mulx %3,%6,%1\n\t" \
1052 "srlx %6,32,%2\n\t" \
1053 "mulx %2,%3,%4\n\t" \
1054 "sllx %4,32,%5\n\t" \
1055 "srl %6,0,%3\n\t" \
1056 "sub %1,%5,%5\n\t" \
1057 "srlx %5,32,%5\n\t" \
1058 "addcc %4,%5,%4\n\t" \
1059 "srlx %7,32,%5\n\t" \
1060 "mulx %3,%5,%3\n\t" \
1061 "mulx %2,%5,%5\n\t" \
1062 "sethi %%hi(0x80000000),%2\n\t" \
1063 "addcc %4,%3,%4\n\t" \
1064 "srlx %4,32,%4\n\t" \
1065 "add %2,%2,%2\n\t" \
1066 "movcc %%xcc,%%g0,%2\n\t" \
1067 "addcc %5,%4,%5\n\t" \
1068 "sllx %3,32,%3\n\t" \
1069 "add %1,%3,%1\n\t" \
1070 "add %5,%2,%0" \
1071 : "=r" ((UDItype)(wh)), \
1072 "=&r" ((UDItype)(wl)), \
1073 "=&r" (tmp1), "=&r" (tmp2), "=&r" (tmp3), "=&r" (tmp4) \
1074 : "r" ((UDItype)(u)), \
1075 "r" ((UDItype)(v)) \
1076 __CLOBBER_CC); \
1077 } while (0)
1078 #define UMUL_TIME 96
1079 #define UDIV_TIME 230
1080 #endif /* sparc64 */
1081
1082 #if defined (__vax__) && W_TYPE_SIZE == 32
1083 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1084 __asm__ ("addl2 %5,%1\n\tadwc %3,%0" \
1085 : "=g" ((USItype) (sh)), \
1086 "=&g" ((USItype) (sl)) \
1087 : "%0" ((USItype) (ah)), \
1088 "g" ((USItype) (bh)), \
1089 "%1" ((USItype) (al)), \
1090 "g" ((USItype) (bl)))
1091 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1092 __asm__ ("subl2 %5,%1\n\tsbwc %3,%0" \
1093 : "=g" ((USItype) (sh)), \
1094 "=&g" ((USItype) (sl)) \
1095 : "0" ((USItype) (ah)), \
1096 "g" ((USItype) (bh)), \
1097 "1" ((USItype) (al)), \
1098 "g" ((USItype) (bl)))
1099 #define umul_ppmm(xh, xl, m0, m1) \
1100 do { \
1101 union { \
1102 UDItype __ll; \
1103 struct {USItype __l, __h;} __i; \
1104 } __xx; \
1105 USItype __m0 = (m0), __m1 = (m1); \
1106 __asm__ ("emul %1,%2,$0,%0" \
1107 : "=r" (__xx.__ll) \
1108 : "g" (__m0), \
1109 "g" (__m1)); \
1110 (xh) = __xx.__i.__h; \
1111 (xl) = __xx.__i.__l; \
1112 (xh) += ((((SItype) __m0 >> 31) & __m1) \
1113 + (((SItype) __m1 >> 31) & __m0)); \
1114 } while (0)
1115 #define sdiv_qrnnd(q, r, n1, n0, d) \
1116 do { \
1117 union {DItype __ll; \
1118 struct {SItype __l, __h;} __i; \
1119 } __xx; \
1120 __xx.__i.__h = n1; __xx.__i.__l = n0; \
1121 __asm__ ("ediv %3,%2,%0,%1" \
1122 : "=g" (q), "=g" (r) \
1123 : "g" (__xx.__ll), "g" (d)); \
1124 } while (0)
1125 #endif /* __vax__ */
1126
1127 #if defined (__z8000__) && W_TYPE_SIZE == 16
1128 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1129 __asm__ ("add %H1,%H5\n\tadc %H0,%H3" \
1130 : "=r" ((unsigned int)(sh)), \
1131 "=&r" ((unsigned int)(sl)) \
1132 : "%0" ((unsigned int)(ah)), \
1133 "r" ((unsigned int)(bh)), \
1134 "%1" ((unsigned int)(al)), \
1135 "rQR" ((unsigned int)(bl)))
1136 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1137 __asm__ ("sub %H1,%H5\n\tsbc %H0,%H3" \
1138 : "=r" ((unsigned int)(sh)), \
1139 "=&r" ((unsigned int)(sl)) \
1140 : "0" ((unsigned int)(ah)), \
1141 "r" ((unsigned int)(bh)), \
1142 "1" ((unsigned int)(al)), \
1143 "rQR" ((unsigned int)(bl)))
1144 #define umul_ppmm(xh, xl, m0, m1) \
1145 do { \
1146 union {long int __ll; \
1147 struct {unsigned int __h, __l;} __i; \
1148 } __xx; \
1149 unsigned int __m0 = (m0), __m1 = (m1); \
1150 __asm__ ("mult %S0,%H3" \
1151 : "=r" (__xx.__i.__h), \
1152 "=r" (__xx.__i.__l) \
1153 : "%1" (__m0), \
1154 "rQR" (__m1)); \
1155 (xh) = __xx.__i.__h; (xl) = __xx.__i.__l; \
1156 (xh) += ((((signed int) __m0 >> 15) & __m1) \
1157 + (((signed int) __m1 >> 15) & __m0)); \
1158 } while (0)
1159 #endif /* __z8000__ */
1160
1161 #endif /* __GNUC__ */
1162
1163 /* If this machine has no inline assembler, use C macros. */
1164
1165 #if !defined (add_ssaaaa)
1166 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1167 do { \
1168 UWtype __x; \
1169 __x = (al) + (bl); \
1170 (sh) = (ah) + (bh) + (__x < (al)); \
1171 (sl) = __x; \
1172 } while (0)
1173 #endif
1174
1175 #if !defined (sub_ddmmss)
1176 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1177 do { \
1178 UWtype __x; \
1179 __x = (al) - (bl); \
1180 (sh) = (ah) - (bh) - (__x > (al)); \
1181 (sl) = __x; \
1182 } while (0)
1183 #endif
1184
1185 /* If we lack umul_ppmm but have smul_ppmm, define umul_ppmm in terms of
1186 smul_ppmm. */
1187 #if !defined (umul_ppmm) && defined (smul_ppmm)
1188 #define umul_ppmm(w1, w0, u, v) \
1189 do { \
1190 UWtype __w1; \
1191 UWtype __xm0 = (u), __xm1 = (v); \
1192 smul_ppmm (__w1, w0, __xm0, __xm1); \
1193 (w1) = __w1 + (-(__xm0 >> (W_TYPE_SIZE - 1)) & __xm1) \
1194 + (-(__xm1 >> (W_TYPE_SIZE - 1)) & __xm0); \
1195 } while (0)
1196 #endif
1197
1198 /* If we still don't have umul_ppmm, define it using plain C. */
1199 #if !defined (umul_ppmm)
1200 #define umul_ppmm(w1, w0, u, v) \
1201 do { \
1202 UWtype __x0, __x1, __x2, __x3; \
1203 UHWtype __ul, __vl, __uh, __vh; \
1204 \
1205 __ul = __ll_lowpart (u); \
1206 __uh = __ll_highpart (u); \
1207 __vl = __ll_lowpart (v); \
1208 __vh = __ll_highpart (v); \
1209 \
1210 __x0 = (UWtype) __ul * __vl; \
1211 __x1 = (UWtype) __ul * __vh; \
1212 __x2 = (UWtype) __uh * __vl; \
1213 __x3 = (UWtype) __uh * __vh; \
1214 \
1215 __x1 += __ll_highpart (__x0);/* this can't give carry */ \
1216 __x1 += __x2; /* but this indeed can */ \
1217 if (__x1 < __x2) /* did we get it? */ \
1218 __x3 += __ll_B; /* yes, add it in the proper pos. */ \
1219 \
1220 (w1) = __x3 + __ll_highpart (__x1); \
1221 (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \
1222 } while (0)
1223 #endif
1224
1225 #if !defined (__umulsidi3)
1226 #define __umulsidi3(u, v) \
1227 ({DWunion __w; \
1228 umul_ppmm (__w.s.high, __w.s.low, u, v); \
1229 __w.ll; })
1230 #endif
1231
1232 /* Define this unconditionally, so it can be used for debugging. */
1233 #define __udiv_qrnnd_c(q, r, n1, n0, d) \
1234 do { \
1235 UWtype __d1, __d0, __q1, __q0; \
1236 UWtype __r1, __r0, __m; \
1237 __d1 = __ll_highpart (d); \
1238 __d0 = __ll_lowpart (d); \
1239 \
1240 __r1 = (n1) % __d1; \
1241 __q1 = (n1) / __d1; \
1242 __m = (UWtype) __q1 * __d0; \
1243 __r1 = __r1 * __ll_B | __ll_highpart (n0); \
1244 if (__r1 < __m) \
1245 { \
1246 __q1--, __r1 += (d); \
1247 if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */\
1248 if (__r1 < __m) \
1249 __q1--, __r1 += (d); \
1250 } \
1251 __r1 -= __m; \
1252 \
1253 __r0 = __r1 % __d1; \
1254 __q0 = __r1 / __d1; \
1255 __m = (UWtype) __q0 * __d0; \
1256 __r0 = __r0 * __ll_B | __ll_lowpart (n0); \
1257 if (__r0 < __m) \
1258 { \
1259 __q0--, __r0 += (d); \
1260 if (__r0 >= (d)) \
1261 if (__r0 < __m) \
1262 __q0--, __r0 += (d); \
1263 } \
1264 __r0 -= __m; \
1265 \
1266 (q) = (UWtype) __q1 * __ll_B | __q0; \
1267 (r) = __r0; \
1268 } while (0)
1269
1270 /* If the processor has no udiv_qrnnd but sdiv_qrnnd, go through
1271 __udiv_w_sdiv (defined in libgcc or elsewhere). */
1272 #if !defined (udiv_qrnnd) && defined (sdiv_qrnnd)
1273 #define udiv_qrnnd(q, r, nh, nl, d) \
1274 do { \
1275 USItype __r; \
1276 (q) = __udiv_w_sdiv (&__r, nh, nl, d); \
1277 (r) = __r; \
1278 } while (0)
1279 #endif
1280
1281 /* If udiv_qrnnd was not defined for this processor, use __udiv_qrnnd_c. */
1282 #if !defined (udiv_qrnnd)
1283 #define UDIV_NEEDS_NORMALIZATION 1
1284 #define udiv_qrnnd __udiv_qrnnd_c
1285 #endif
1286
1287 #if !defined (count_leading_zeros)
1288 extern const UQItype __clz_tab[] ATTRIBUTE_HIDDEN;
1289 #define count_leading_zeros(count, x) \
1290 do { \
1291 UWtype __xr = (x); \
1292 UWtype __a; \
1293 \
1294 if (W_TYPE_SIZE <= 32) \
1295 { \
1296 __a = __xr < ((UWtype)1<<2*__BITS4) \
1297 ? (__xr < ((UWtype)1<<__BITS4) ? 0 : __BITS4) \
1298 : (__xr < ((UWtype)1<<3*__BITS4) ? 2*__BITS4 : 3*__BITS4); \
1299 } \
1300 else \
1301 { \
1302 for (__a = W_TYPE_SIZE - 8; __a > 0; __a -= 8) \
1303 if (((__xr >> __a) & 0xff) != 0) \
1304 break; \
1305 } \
1306 \
1307 (count) = W_TYPE_SIZE - (__clz_tab[__xr >> __a] + __a); \
1308 } while (0)
1309 #define COUNT_LEADING_ZEROS_0 W_TYPE_SIZE
1310 #endif
1311
1312 #if !defined (count_trailing_zeros)
1313 /* Define count_trailing_zeros using count_leading_zeros. The latter might be
1314 defined in asm, but if it is not, the C version above is good enough. */
1315 #define count_trailing_zeros(count, x) \
1316 do { \
1317 UWtype __ctz_x = (x); \
1318 UWtype __ctz_c; \
1319 count_leading_zeros (__ctz_c, __ctz_x & -__ctz_x); \
1320 (count) = W_TYPE_SIZE - 1 - __ctz_c; \
1321 } while (0)
1322 #endif
1323
1324 #ifndef UDIV_NEEDS_NORMALIZATION
1325 #define UDIV_NEEDS_NORMALIZATION 0
1326 #endif
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