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Make-lang.in: Update dependencies.
[official-gcc.git] / libgcc / longlong.h
blob30cc2e337f31393b218966ef5bf5b2ea401b45fa
1 /* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
2 Copyright (C) 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
3 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
4 Free Software Foundation, Inc.
5
6 This file is part of the GNU C Library.
7
8 The GNU C Library is free software; you can redistribute it and/or
9 modify it under the terms of the GNU Lesser General Public
10 License as published by the Free Software Foundation; either
11 version 2.1 of the License, or (at your option) any later version.
12
13 In addition to the permissions in the GNU Lesser General Public
14 License, the Free Software Foundation gives you unlimited
15 permission to link the compiled version of this file into
16 combinations with other programs, and to distribute those
17 combinations without any restriction coming from the use of this
18 file. (The Lesser General Public License restrictions do apply in
19 other respects; for example, they cover modification of the file,
20 and distribution when not linked into a combine executable.)
21
22 The GNU C Library is distributed in the hope that it will be useful,
23 but WITHOUT ANY WARRANTY; without even the implied warranty of
24 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
25 Lesser General Public License for more details.
26
27 You should have received a copy of the GNU Lesser General Public
28 License along with the GNU C Library; if not, write to the Free
29 Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
30 MA 02110-1301, USA. */
31
32 /* You have to define the following before including this file:
33
34 UWtype -- An unsigned type, default type for operations (typically a "word")
35 UHWtype -- An unsigned type, at least half the size of UWtype.
36 UDWtype -- An unsigned type, at least twice as large a UWtype
37 W_TYPE_SIZE -- size in bits of UWtype
38
39 UQItype -- Unsigned 8 bit type.
40 SItype, USItype -- Signed and unsigned 32 bit types.
41 DItype, UDItype -- Signed and unsigned 64 bit types.
42
43 On a 32 bit machine UWtype should typically be USItype;
44 on a 64 bit machine, UWtype should typically be UDItype. */
45
46 #define __BITS4 (W_TYPE_SIZE / 4)
47 #define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2))
48 #define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1))
49 #define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2))
50
51 #ifndef W_TYPE_SIZE
52 #define W_TYPE_SIZE 32
53 #define UWtype USItype
54 #define UHWtype USItype
55 #define UDWtype UDItype
56 #endif
57
58 /* Used in glibc only. */
59 #ifndef attribute_hidden
60 #define attribute_hidden
61 #endif
62
63 extern const UQItype __clz_tab[256] attribute_hidden;
64
65 /* Define auxiliary asm macros.
66
67 1) umul_ppmm(high_prod, low_prod, multiplier, multiplicand) multiplies two
68 UWtype integers MULTIPLIER and MULTIPLICAND, and generates a two UWtype
69 word product in HIGH_PROD and LOW_PROD.
70
71 2) __umulsidi3(a,b) multiplies two UWtype integers A and B, and returns a
72 UDWtype product. This is just a variant of umul_ppmm.
73
74 3) udiv_qrnnd(quotient, remainder, high_numerator, low_numerator,
75 denominator) divides a UDWtype, composed by the UWtype integers
76 HIGH_NUMERATOR and LOW_NUMERATOR, by DENOMINATOR and places the quotient
77 in QUOTIENT and the remainder in REMAINDER. HIGH_NUMERATOR must be less
78 than DENOMINATOR for correct operation. If, in addition, the most
79 significant bit of DENOMINATOR must be 1, then the pre-processor symbol
80 UDIV_NEEDS_NORMALIZATION is defined to 1.
81
82 4) sdiv_qrnnd(quotient, remainder, high_numerator, low_numerator,
83 denominator). Like udiv_qrnnd but the numbers are signed. The quotient
84 is rounded towards 0.
85
86 5) count_leading_zeros(count, x) counts the number of zero-bits from the
87 msb to the first nonzero bit in the UWtype X. This is the number of
88 steps X needs to be shifted left to set the msb. Undefined for X == 0,
89 unless the symbol COUNT_LEADING_ZEROS_0 is defined to some value.
90
91 6) count_trailing_zeros(count, x) like count_leading_zeros, but counts
92 from the least significant end.
93
94 7) add_ssaaaa(high_sum, low_sum, high_addend_1, low_addend_1,
95 high_addend_2, low_addend_2) adds two UWtype integers, composed by
96 HIGH_ADDEND_1 and LOW_ADDEND_1, and HIGH_ADDEND_2 and LOW_ADDEND_2
97 respectively. The result is placed in HIGH_SUM and LOW_SUM. Overflow
98 (i.e. carry out) is not stored anywhere, and is lost.
99
100 8) sub_ddmmss(high_difference, low_difference, high_minuend, low_minuend,
101 high_subtrahend, low_subtrahend) subtracts two two-word UWtype integers,
102 composed by HIGH_MINUEND_1 and LOW_MINUEND_1, and HIGH_SUBTRAHEND_2 and
103 LOW_SUBTRAHEND_2 respectively. The result is placed in HIGH_DIFFERENCE
104 and LOW_DIFFERENCE. Overflow (i.e. carry out) is not stored anywhere,
105 and is lost.
106
107 If any of these macros are left undefined for a particular CPU,
108 C macros are used. */
109
110 /* The CPUs come in alphabetical order below.
111
112 Please add support for more CPUs here, or improve the current support
113 for the CPUs below!
114 (E.g. WE32100, IBM360.) */
115
116 #if defined (__GNUC__) && !defined (NO_ASM)
117
118 /* We sometimes need to clobber "cc" with gcc2, but that would not be
119 understood by gcc1. Use cpp to avoid major code duplication. */
120 #if __GNUC__ < 2
121 #define __CLOBBER_CC
122 #define __AND_CLOBBER_CC
123 #else /* __GNUC__ >= 2 */
124 #define __CLOBBER_CC : "cc"
125 #define __AND_CLOBBER_CC , "cc"
126 #endif /* __GNUC__ < 2 */
127
128 #if defined (__alpha) && W_TYPE_SIZE == 64
129 #define umul_ppmm(ph, pl, m0, m1) \
130 do { \
131 UDItype __m0 = (m0), __m1 = (m1); \
132 (ph) = __builtin_alpha_umulh (__m0, __m1); \
133 (pl) = __m0 * __m1; \
134 } while (0)
135 #define UMUL_TIME 46
136 #ifndef LONGLONG_STANDALONE
137 #define udiv_qrnnd(q, r, n1, n0, d) \
138 do { UDItype __r; \
139 (q) = __udiv_qrnnd (&__r, (n1), (n0), (d)); \
140 (r) = __r; \
141 } while (0)
142 extern UDItype __udiv_qrnnd (UDItype *, UDItype, UDItype, UDItype);
143 #define UDIV_TIME 220
144 #endif /* LONGLONG_STANDALONE */
145 #ifdef __alpha_cix__
146 #define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clzl (X))
147 #define count_trailing_zeros(COUNT,X) ((COUNT) = __builtin_ctzl (X))
148 #define COUNT_LEADING_ZEROS_0 64
149 #else
150 #define count_leading_zeros(COUNT,X) \
151 do { \
152 UDItype __xr = (X), __t, __a; \
153 __t = __builtin_alpha_cmpbge (0, __xr); \
154 __a = __clz_tab[__t ^ 0xff] - 1; \
155 __t = __builtin_alpha_extbl (__xr, __a); \
156 (COUNT) = 64 - (__clz_tab[__t] + __a*8); \
157 } while (0)
158 #define count_trailing_zeros(COUNT,X) \
159 do { \
160 UDItype __xr = (X), __t, __a; \
161 __t = __builtin_alpha_cmpbge (0, __xr); \
162 __t = ~__t & -~__t; \
163 __a = ((__t & 0xCC) != 0) * 2; \
164 __a += ((__t & 0xF0) != 0) * 4; \
165 __a += ((__t & 0xAA) != 0); \
166 __t = __builtin_alpha_extbl (__xr, __a); \
167 __a <<= 3; \
168 __t &= -__t; \
169 __a += ((__t & 0xCC) != 0) * 2; \
170 __a += ((__t & 0xF0) != 0) * 4; \
171 __a += ((__t & 0xAA) != 0); \
172 (COUNT) = __a; \
173 } while (0)
174 #endif /* __alpha_cix__ */
175 #endif /* __alpha */
176
177 #if defined (__arc__) && W_TYPE_SIZE == 32
178 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
179 __asm__ ("add.f %1, %4, %5\n\tadc %0, %2, %3" \
180 : "=r" ((USItype) (sh)), \
181 "=&r" ((USItype) (sl)) \
182 : "%r" ((USItype) (ah)), \
183 "rIJ" ((USItype) (bh)), \
184 "%r" ((USItype) (al)), \
185 "rIJ" ((USItype) (bl)))
186 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
187 __asm__ ("sub.f %1, %4, %5\n\tsbc %0, %2, %3" \
188 : "=r" ((USItype) (sh)), \
189 "=&r" ((USItype) (sl)) \
190 : "r" ((USItype) (ah)), \
191 "rIJ" ((USItype) (bh)), \
192 "r" ((USItype) (al)), \
193 "rIJ" ((USItype) (bl)))
194 /* Call libgcc routine. */
195 #define umul_ppmm(w1, w0, u, v) \
196 do { \
197 DWunion __w; \
198 __w.ll = __umulsidi3 (u, v); \
199 w1 = __w.s.high; \
200 w0 = __w.s.low; \
201 } while (0)
202 #define __umulsidi3 __umulsidi3
203 UDItype __umulsidi3 (USItype, USItype);
204 #endif
205
206 #if defined (__arm__) && !defined (__thumb__) && W_TYPE_SIZE == 32
207 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
208 __asm__ ("adds %1, %4, %5\n\tadc %0, %2, %3" \
209 : "=r" ((USItype) (sh)), \
210 "=&r" ((USItype) (sl)) \
211 : "%r" ((USItype) (ah)), \
212 "rI" ((USItype) (bh)), \
213 "%r" ((USItype) (al)), \
214 "rI" ((USItype) (bl)) __CLOBBER_CC)
215 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
216 __asm__ ("subs %1, %4, %5\n\tsbc %0, %2, %3" \
217 : "=r" ((USItype) (sh)), \
218 "=&r" ((USItype) (sl)) \
219 : "r" ((USItype) (ah)), \
220 "rI" ((USItype) (bh)), \
221 "r" ((USItype) (al)), \
222 "rI" ((USItype) (bl)) __CLOBBER_CC)
223 #define umul_ppmm(xh, xl, a, b) \
224 {register USItype __t0, __t1, __t2; \
225 __asm__ ("%@ Inlined umul_ppmm\n" \
226 " mov %2, %5, lsr #16\n" \
227 " mov %0, %6, lsr #16\n" \
228 " bic %3, %5, %2, lsl #16\n" \
229 " bic %4, %6, %0, lsl #16\n" \
230 " mul %1, %3, %4\n" \
231 " mul %4, %2, %4\n" \
232 " mul %3, %0, %3\n" \
233 " mul %0, %2, %0\n" \
234 " adds %3, %4, %3\n" \
235 " addcs %0, %0, #65536\n" \
236 " adds %1, %1, %3, lsl #16\n" \
237 " adc %0, %0, %3, lsr #16" \
238 : "=&r" ((USItype) (xh)), \
239 "=r" ((USItype) (xl)), \
240 "=&r" (__t0), "=&r" (__t1), "=r" (__t2) \
241 : "r" ((USItype) (a)), \
242 "r" ((USItype) (b)) __CLOBBER_CC );}
243 #define UMUL_TIME 20
244 #define UDIV_TIME 100
245 #endif /* __arm__ */
246
247 #if defined(__arm__)
248 /* Let gcc decide how best to implement count_leading_zeros. */
249 #define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clz (X))
250 #define COUNT_LEADING_ZEROS_0 32
251 #endif
252
253 #if defined (__AVR__)
254
255 #if W_TYPE_SIZE == 16
256 #define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clz (X))
257 #define count_trailing_zeros(COUNT,X) ((COUNT) = __builtin_ctz (X))
258 #define COUNT_LEADING_ZEROS_0 16
259 #endif /* W_TYPE_SIZE == 16 */
260
261 #if W_TYPE_SIZE == 32
262 #define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clzl (X))
263 #define count_trailing_zeros(COUNT,X) ((COUNT) = __builtin_ctzl (X))
264 #define COUNT_LEADING_ZEROS_0 32
265 #endif /* W_TYPE_SIZE == 32 */
266
267 #if W_TYPE_SIZE == 64
268 #define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clzll (X))
269 #define count_trailing_zeros(COUNT,X) ((COUNT) = __builtin_ctzll (X))
270 #define COUNT_LEADING_ZEROS_0 64
271 #endif /* W_TYPE_SIZE == 64 */
272
273 #endif /* defined (__AVR__) */
274
275 #if defined (__CRIS__) && __CRIS_arch_version >= 3
276 #define count_leading_zeros(COUNT, X) ((COUNT) = __builtin_clz (X))
277 #if __CRIS_arch_version >= 8
278 #define count_trailing_zeros(COUNT, X) ((COUNT) = __builtin_ctz (X))
279 #endif
280 #endif /* __CRIS__ */
281
282 #if defined (__hppa) && W_TYPE_SIZE == 32
283 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
284 __asm__ ("add %4,%5,%1\n\taddc %2,%3,%0" \
285 : "=r" ((USItype) (sh)), \
286 "=&r" ((USItype) (sl)) \
287 : "%rM" ((USItype) (ah)), \
288 "rM" ((USItype) (bh)), \
289 "%rM" ((USItype) (al)), \
290 "rM" ((USItype) (bl)))
291 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
292 __asm__ ("sub %4,%5,%1\n\tsubb %2,%3,%0" \
293 : "=r" ((USItype) (sh)), \
294 "=&r" ((USItype) (sl)) \
295 : "rM" ((USItype) (ah)), \
296 "rM" ((USItype) (bh)), \
297 "rM" ((USItype) (al)), \
298 "rM" ((USItype) (bl)))
299 #if defined (_PA_RISC1_1)
300 #define umul_ppmm(w1, w0, u, v) \
301 do { \
302 union \
303 { \
304 UDItype __f; \
305 struct {USItype __w1, __w0;} __w1w0; \
306 } __t; \
307 __asm__ ("xmpyu %1,%2,%0" \
308 : "=x" (__t.__f) \
309 : "x" ((USItype) (u)), \
310 "x" ((USItype) (v))); \
311 (w1) = __t.__w1w0.__w1; \
312 (w0) = __t.__w1w0.__w0; \
313 } while (0)
314 #define UMUL_TIME 8
315 #else
316 #define UMUL_TIME 30
317 #endif
318 #define UDIV_TIME 40
319 #define count_leading_zeros(count, x) \
320 do { \
321 USItype __tmp; \
322 __asm__ ( \
323 "ldi 1,%0\n" \
324 " extru,= %1,15,16,%%r0 ; Bits 31..16 zero?\n" \
325 " extru,tr %1,15,16,%1 ; No. Shift down, skip add.\n"\
326 " ldo 16(%0),%0 ; Yes. Perform add.\n" \
327 " extru,= %1,23,8,%%r0 ; Bits 15..8 zero?\n" \
328 " extru,tr %1,23,8,%1 ; No. Shift down, skip add.\n"\
329 " ldo 8(%0),%0 ; Yes. Perform add.\n" \
330 " extru,= %1,27,4,%%r0 ; Bits 7..4 zero?\n" \
331 " extru,tr %1,27,4,%1 ; No. Shift down, skip add.\n"\
332 " ldo 4(%0),%0 ; Yes. Perform add.\n" \
333 " extru,= %1,29,2,%%r0 ; Bits 3..2 zero?\n" \
334 " extru,tr %1,29,2,%1 ; No. Shift down, skip add.\n"\
335 " ldo 2(%0),%0 ; Yes. Perform add.\n" \
336 " extru %1,30,1,%1 ; Extract bit 1.\n" \
337 " sub %0,%1,%0 ; Subtract it.\n" \
338 : "=r" (count), "=r" (__tmp) : "1" (x)); \
339 } while (0)
340 #endif
341
342 #if (defined (__i370__) || defined (__s390__) || defined (__mvs__)) && W_TYPE_SIZE == 32
343 #if !defined (__zarch__)
344 #define smul_ppmm(xh, xl, m0, m1) \
345 do { \
346 union {DItype __ll; \
347 struct {USItype __h, __l;} __i; \
348 } __x; \
349 __asm__ ("lr %N0,%1\n\tmr %0,%2" \
350 : "=&r" (__x.__ll) \
351 : "r" (m0), "r" (m1)); \
352 (xh) = __x.__i.__h; (xl) = __x.__i.__l; \
353 } while (0)
354 #define sdiv_qrnnd(q, r, n1, n0, d) \
355 do { \
356 union {DItype __ll; \
357 struct {USItype __h, __l;} __i; \
358 } __x; \
359 __x.__i.__h = n1; __x.__i.__l = n0; \
360 __asm__ ("dr %0,%2" \
361 : "=r" (__x.__ll) \
362 : "0" (__x.__ll), "r" (d)); \
363 (q) = __x.__i.__l; (r) = __x.__i.__h; \
364 } while (0)
365 #else
366 #define smul_ppmm(xh, xl, m0, m1) \
367 do { \
368 register SItype __r0 __asm__ ("0"); \
369 register SItype __r1 __asm__ ("1") = (m0); \
370 \
371 __asm__ ("mr\t%%r0,%3" \
372 : "=r" (__r0), "=r" (__r1) \
373 : "r" (__r1), "r" (m1)); \
374 (xh) = __r0; (xl) = __r1; \
375 } while (0)
376
377 #define sdiv_qrnnd(q, r, n1, n0, d) \
378 do { \
379 register SItype __r0 __asm__ ("0") = (n1); \
380 register SItype __r1 __asm__ ("1") = (n0); \
381 \
382 __asm__ ("dr\t%%r0,%4" \
383 : "=r" (__r0), "=r" (__r1) \
384 : "r" (__r0), "r" (__r1), "r" (d)); \
385 (q) = __r1; (r) = __r0; \
386 } while (0)
387 #endif /* __zarch__ */
388 #endif
389
390 #if (defined (__i386__) || defined (__i486__)) && W_TYPE_SIZE == 32
391 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
392 __asm__ ("add{l} {%5,%1|%1,%5}\n\tadc{l} {%3,%0|%0,%3}" \
393 : "=r" ((USItype) (sh)), \
394 "=&r" ((USItype) (sl)) \
395 : "%0" ((USItype) (ah)), \
396 "g" ((USItype) (bh)), \
397 "%1" ((USItype) (al)), \
398 "g" ((USItype) (bl)))
399 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
400 __asm__ ("sub{l} {%5,%1|%1,%5}\n\tsbb{l} {%3,%0|%0,%3}" \
401 : "=r" ((USItype) (sh)), \
402 "=&r" ((USItype) (sl)) \
403 : "0" ((USItype) (ah)), \
404 "g" ((USItype) (bh)), \
405 "1" ((USItype) (al)), \
406 "g" ((USItype) (bl)))
407 #define umul_ppmm(w1, w0, u, v) \
408 __asm__ ("mul{l} %3" \
409 : "=a" ((USItype) (w0)), \
410 "=d" ((USItype) (w1)) \
411 : "%0" ((USItype) (u)), \
412 "rm" ((USItype) (v)))
413 #define udiv_qrnnd(q, r, n1, n0, dv) \
414 __asm__ ("div{l} %4" \
415 : "=a" ((USItype) (q)), \
416 "=d" ((USItype) (r)) \
417 : "0" ((USItype) (n0)), \
418 "1" ((USItype) (n1)), \
419 "rm" ((USItype) (dv)))
420 #define count_leading_zeros(count, x) ((count) = __builtin_clz (x))
421 #define count_trailing_zeros(count, x) ((count) = __builtin_ctz (x))
422 #define UMUL_TIME 40
423 #define UDIV_TIME 40
424 #endif /* 80x86 */
425
426 #if (defined (__x86_64__) || defined (__i386__)) && W_TYPE_SIZE == 64
427 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
428 __asm__ ("add{q} {%5,%1|%1,%5}\n\tadc{q} {%3,%0|%0,%3}" \
429 : "=r" ((UDItype) (sh)), \
430 "=&r" ((UDItype) (sl)) \
431 : "%0" ((UDItype) (ah)), \
432 "rme" ((UDItype) (bh)), \
433 "%1" ((UDItype) (al)), \
434 "rme" ((UDItype) (bl)))
435 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
436 __asm__ ("sub{q} {%5,%1|%1,%5}\n\tsbb{q} {%3,%0|%0,%3}" \
437 : "=r" ((UDItype) (sh)), \
438 "=&r" ((UDItype) (sl)) \
439 : "0" ((UDItype) (ah)), \
440 "rme" ((UDItype) (bh)), \
441 "1" ((UDItype) (al)), \
442 "rme" ((UDItype) (bl)))
443 #define umul_ppmm(w1, w0, u, v) \
444 __asm__ ("mul{q} %3" \
445 : "=a" ((UDItype) (w0)), \
446 "=d" ((UDItype) (w1)) \
447 : "%0" ((UDItype) (u)), \
448 "rm" ((UDItype) (v)))
449 #define udiv_qrnnd(q, r, n1, n0, dv) \
450 __asm__ ("div{q} %4" \
451 : "=a" ((UDItype) (q)), \
452 "=d" ((UDItype) (r)) \
453 : "0" ((UDItype) (n0)), \
454 "1" ((UDItype) (n1)), \
455 "rm" ((UDItype) (dv)))
456 #define count_leading_zeros(count, x) ((count) = __builtin_clzll (x))
457 #define count_trailing_zeros(count, x) ((count) = __builtin_ctzll (x))
458 #define UMUL_TIME 40
459 #define UDIV_TIME 40
460 #endif /* x86_64 */
461
462 #if defined (__i960__) && W_TYPE_SIZE == 32
463 #define umul_ppmm(w1, w0, u, v) \
464 ({union {UDItype __ll; \
465 struct {USItype __l, __h;} __i; \
466 } __xx; \
467 __asm__ ("emul %2,%1,%0" \
468 : "=d" (__xx.__ll) \
469 : "%dI" ((USItype) (u)), \
470 "dI" ((USItype) (v))); \
471 (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
472 #define __umulsidi3(u, v) \
473 ({UDItype __w; \
474 __asm__ ("emul %2,%1,%0" \
475 : "=d" (__w) \
476 : "%dI" ((USItype) (u)), \
477 "dI" ((USItype) (v))); \
478 __w; })
479 #endif /* __i960__ */
480
481 #if defined (__ia64) && W_TYPE_SIZE == 64
482 /* This form encourages gcc (pre-release 3.4 at least) to emit predicated
483 "sub r=r,r" and "sub r=r,r,1", giving a 2 cycle latency. The generic
484 code using "al<bl" arithmetically comes out making an actual 0 or 1 in a
485 register, which takes an extra cycle. */
486 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
487 do { \
488 UWtype __x; \
489 __x = (al) - (bl); \
490 if ((al) < (bl)) \
491 (sh) = (ah) - (bh) - 1; \
492 else \
493 (sh) = (ah) - (bh); \
494 (sl) = __x; \
495 } while (0)
496
497 /* Do both product parts in assembly, since that gives better code with
498 all gcc versions. Some callers will just use the upper part, and in
499 that situation we waste an instruction, but not any cycles. */
500 #define umul_ppmm(ph, pl, m0, m1) \
501 __asm__ ("xma.hu %0 = %2, %3, f0\n\txma.l %1 = %2, %3, f0" \
502 : "=&f" (ph), "=f" (pl) \
503 : "f" (m0), "f" (m1))
504 #define count_leading_zeros(count, x) \
505 do { \
506 UWtype _x = (x), _y, _a, _c; \
507 __asm__ ("mux1 %0 = %1, @rev" : "=r" (_y) : "r" (_x)); \
508 __asm__ ("czx1.l %0 = %1" : "=r" (_a) : "r" (-_y | _y)); \
509 _c = (_a - 1) << 3; \
510 _x >>= _c; \
511 if (_x >= 1 << 4) \
512 _x >>= 4, _c += 4; \
513 if (_x >= 1 << 2) \
514 _x >>= 2, _c += 2; \
515 _c += _x >> 1; \
516 (count) = W_TYPE_SIZE - 1 - _c; \
517 } while (0)
518 /* similar to what gcc does for __builtin_ffs, but 0 based rather than 1
519 based, and we don't need a special case for x==0 here */
520 #define count_trailing_zeros(count, x) \
521 do { \
522 UWtype __ctz_x = (x); \
523 __asm__ ("popcnt %0 = %1" \
524 : "=r" (count) \
525 : "r" ((__ctz_x-1) & ~__ctz_x)); \
526 } while (0)
527 #define UMUL_TIME 14
528 #endif
529
530 #if defined (__M32R__) && W_TYPE_SIZE == 32
531 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
532 /* The cmp clears the condition bit. */ \
533 __asm__ ("cmp %0,%0\n\taddx %1,%5\n\taddx %0,%3" \
534 : "=r" ((USItype) (sh)), \
535 "=&r" ((USItype) (sl)) \
536 : "0" ((USItype) (ah)), \
537 "r" ((USItype) (bh)), \
538 "1" ((USItype) (al)), \
539 "r" ((USItype) (bl)) \
540 : "cbit")
541 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
542 /* The cmp clears the condition bit. */ \
543 __asm__ ("cmp %0,%0\n\tsubx %1,%5\n\tsubx %0,%3" \
544 : "=r" ((USItype) (sh)), \
545 "=&r" ((USItype) (sl)) \
546 : "0" ((USItype) (ah)), \
547 "r" ((USItype) (bh)), \
548 "1" ((USItype) (al)), \
549 "r" ((USItype) (bl)) \
550 : "cbit")
551 #endif /* __M32R__ */
552
553 #if defined (__mc68000__) && W_TYPE_SIZE == 32
554 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
555 __asm__ ("add%.l %5,%1\n\taddx%.l %3,%0" \
556 : "=d" ((USItype) (sh)), \
557 "=&d" ((USItype) (sl)) \
558 : "%0" ((USItype) (ah)), \
559 "d" ((USItype) (bh)), \
560 "%1" ((USItype) (al)), \
561 "g" ((USItype) (bl)))
562 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
563 __asm__ ("sub%.l %5,%1\n\tsubx%.l %3,%0" \
564 : "=d" ((USItype) (sh)), \
565 "=&d" ((USItype) (sl)) \
566 : "0" ((USItype) (ah)), \
567 "d" ((USItype) (bh)), \
568 "1" ((USItype) (al)), \
569 "g" ((USItype) (bl)))
570
571 /* The '020, '030, '040, '060 and CPU32 have 32x32->64 and 64/32->32q-32r. */
572 #if (defined (__mc68020__) && !defined (__mc68060__))
573 #define umul_ppmm(w1, w0, u, v) \
574 __asm__ ("mulu%.l %3,%1:%0" \
575 : "=d" ((USItype) (w0)), \
576 "=d" ((USItype) (w1)) \
577 : "%0" ((USItype) (u)), \
578 "dmi" ((USItype) (v)))
579 #define UMUL_TIME 45
580 #define udiv_qrnnd(q, r, n1, n0, d) \
581 __asm__ ("divu%.l %4,%1:%0" \
582 : "=d" ((USItype) (q)), \
583 "=d" ((USItype) (r)) \
584 : "0" ((USItype) (n0)), \
585 "1" ((USItype) (n1)), \
586 "dmi" ((USItype) (d)))
587 #define UDIV_TIME 90
588 #define sdiv_qrnnd(q, r, n1, n0, d) \
589 __asm__ ("divs%.l %4,%1:%0" \
590 : "=d" ((USItype) (q)), \
591 "=d" ((USItype) (r)) \
592 : "0" ((USItype) (n0)), \
593 "1" ((USItype) (n1)), \
594 "dmi" ((USItype) (d)))
595
596 #elif defined (__mcoldfire__) /* not mc68020 */
597
598 #define umul_ppmm(xh, xl, a, b) \
599 __asm__ ("| Inlined umul_ppmm\n" \
600 " move%.l %2,%/d0\n" \
601 " move%.l %3,%/d1\n" \
602 " move%.l %/d0,%/d2\n" \
603 " swap %/d0\n" \
604 " move%.l %/d1,%/d3\n" \
605 " swap %/d1\n" \
606 " move%.w %/d2,%/d4\n" \
607 " mulu %/d3,%/d4\n" \
608 " mulu %/d1,%/d2\n" \
609 " mulu %/d0,%/d3\n" \
610 " mulu %/d0,%/d1\n" \
611 " move%.l %/d4,%/d0\n" \
612 " clr%.w %/d0\n" \
613 " swap %/d0\n" \
614 " add%.l %/d0,%/d2\n" \
615 " add%.l %/d3,%/d2\n" \
616 " jcc 1f\n" \
617 " add%.l %#65536,%/d1\n" \
618 "1: swap %/d2\n" \
619 " moveq %#0,%/d0\n" \
620 " move%.w %/d2,%/d0\n" \
621 " move%.w %/d4,%/d2\n" \
622 " move%.l %/d2,%1\n" \
623 " add%.l %/d1,%/d0\n" \
624 " move%.l %/d0,%0" \
625 : "=g" ((USItype) (xh)), \
626 "=g" ((USItype) (xl)) \
627 : "g" ((USItype) (a)), \
628 "g" ((USItype) (b)) \
629 : "d0", "d1", "d2", "d3", "d4")
630 #define UMUL_TIME 100
631 #define UDIV_TIME 400
632 #else /* not ColdFire */
633 /* %/ inserts REGISTER_PREFIX, %# inserts IMMEDIATE_PREFIX. */
634 #define umul_ppmm(xh, xl, a, b) \
635 __asm__ ("| Inlined umul_ppmm\n" \
636 " move%.l %2,%/d0\n" \
637 " move%.l %3,%/d1\n" \
638 " move%.l %/d0,%/d2\n" \
639 " swap %/d0\n" \
640 " move%.l %/d1,%/d3\n" \
641 " swap %/d1\n" \
642 " move%.w %/d2,%/d4\n" \
643 " mulu %/d3,%/d4\n" \
644 " mulu %/d1,%/d2\n" \
645 " mulu %/d0,%/d3\n" \
646 " mulu %/d0,%/d1\n" \
647 " move%.l %/d4,%/d0\n" \
648 " eor%.w %/d0,%/d0\n" \
649 " swap %/d0\n" \
650 " add%.l %/d0,%/d2\n" \
651 " add%.l %/d3,%/d2\n" \
652 " jcc 1f\n" \
653 " add%.l %#65536,%/d1\n" \
654 "1: swap %/d2\n" \
655 " moveq %#0,%/d0\n" \
656 " move%.w %/d2,%/d0\n" \
657 " move%.w %/d4,%/d2\n" \
658 " move%.l %/d2,%1\n" \
659 " add%.l %/d1,%/d0\n" \
660 " move%.l %/d0,%0" \
661 : "=g" ((USItype) (xh)), \
662 "=g" ((USItype) (xl)) \
663 : "g" ((USItype) (a)), \
664 "g" ((USItype) (b)) \
665 : "d0", "d1", "d2", "d3", "d4")
666 #define UMUL_TIME 100
667 #define UDIV_TIME 400
668
669 #endif /* not mc68020 */
670
671 /* The '020, '030, '040 and '060 have bitfield insns.
672 cpu32 disguises as a 68020, but lacks them. */
673 #if defined (__mc68020__) && !defined (__mcpu32__)
674 #define count_leading_zeros(count, x) \
675 __asm__ ("bfffo %1{%b2:%b2},%0" \
676 : "=d" ((USItype) (count)) \
677 : "od" ((USItype) (x)), "n" (0))
678 /* Some ColdFire architectures have a ff1 instruction supported via
679 __builtin_clz. */
680 #elif defined (__mcfisaaplus__) || defined (__mcfisac__)
681 #define count_leading_zeros(count,x) ((count) = __builtin_clz (x))
682 #define COUNT_LEADING_ZEROS_0 32
683 #endif
684 #endif /* mc68000 */
685
686 #if defined (__m88000__) && W_TYPE_SIZE == 32
687 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
688 __asm__ ("addu.co %1,%r4,%r5\n\taddu.ci %0,%r2,%r3" \
689 : "=r" ((USItype) (sh)), \
690 "=&r" ((USItype) (sl)) \
691 : "%rJ" ((USItype) (ah)), \
692 "rJ" ((USItype) (bh)), \
693 "%rJ" ((USItype) (al)), \
694 "rJ" ((USItype) (bl)))
695 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
696 __asm__ ("subu.co %1,%r4,%r5\n\tsubu.ci %0,%r2,%r3" \
697 : "=r" ((USItype) (sh)), \
698 "=&r" ((USItype) (sl)) \
699 : "rJ" ((USItype) (ah)), \
700 "rJ" ((USItype) (bh)), \
701 "rJ" ((USItype) (al)), \
702 "rJ" ((USItype) (bl)))
703 #define count_leading_zeros(count, x) \
704 do { \
705 USItype __cbtmp; \
706 __asm__ ("ff1 %0,%1" \
707 : "=r" (__cbtmp) \
708 : "r" ((USItype) (x))); \
709 (count) = __cbtmp ^ 31; \
710 } while (0)
711 #define COUNT_LEADING_ZEROS_0 63 /* sic */
712 #if defined (__mc88110__)
713 #define umul_ppmm(wh, wl, u, v) \
714 do { \
715 union {UDItype __ll; \
716 struct {USItype __h, __l;} __i; \
717 } __xx; \
718 __asm__ ("mulu.d %0,%1,%2" \
719 : "=r" (__xx.__ll) \
720 : "r" ((USItype) (u)), \
721 "r" ((USItype) (v))); \
722 (wh) = __xx.__i.__h; \
723 (wl) = __xx.__i.__l; \
724 } while (0)
725 #define udiv_qrnnd(q, r, n1, n0, d) \
726 ({union {UDItype __ll; \
727 struct {USItype __h, __l;} __i; \
728 } __xx; \
729 USItype __q; \
730 __xx.__i.__h = (n1); __xx.__i.__l = (n0); \
731 __asm__ ("divu.d %0,%1,%2" \
732 : "=r" (__q) \
733 : "r" (__xx.__ll), \
734 "r" ((USItype) (d))); \
735 (r) = (n0) - __q * (d); (q) = __q; })
736 #define UMUL_TIME 5
737 #define UDIV_TIME 25
738 #else
739 #define UMUL_TIME 17
740 #define UDIV_TIME 150
741 #endif /* __mc88110__ */
742 #endif /* __m88000__ */
743
744 #if defined (__mn10300__)
745 # if defined (__AM33__)
746 # define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clz (X))
747 # define umul_ppmm(w1, w0, u, v) \
748 asm("mulu %3,%2,%1,%0" : "=r"(w0), "=r"(w1) : "r"(u), "r"(v))
749 # define smul_ppmm(w1, w0, u, v) \
750 asm("mul %3,%2,%1,%0" : "=r"(w0), "=r"(w1) : "r"(u), "r"(v))
751 # else
752 # define umul_ppmm(w1, w0, u, v) \
753 asm("nop; nop; mulu %3,%0" : "=d"(w0), "=z"(w1) : "%0"(u), "d"(v))
754 # define smul_ppmm(w1, w0, u, v) \
755 asm("nop; nop; mul %3,%0" : "=d"(w0), "=z"(w1) : "%0"(u), "d"(v))
756 # endif
757 # define add_ssaaaa(sh, sl, ah, al, bh, bl) \
758 do { \
759 DWunion __s, __a, __b; \
760 __a.s.low = (al); __a.s.high = (ah); \
761 __b.s.low = (bl); __b.s.high = (bh); \
762 __s.ll = __a.ll + __b.ll; \
763 (sl) = __s.s.low; (sh) = __s.s.high; \
764 } while (0)
765 # define sub_ddmmss(sh, sl, ah, al, bh, bl) \
766 do { \
767 DWunion __s, __a, __b; \
768 __a.s.low = (al); __a.s.high = (ah); \
769 __b.s.low = (bl); __b.s.high = (bh); \
770 __s.ll = __a.ll - __b.ll; \
771 (sl) = __s.s.low; (sh) = __s.s.high; \
772 } while (0)
773 # define udiv_qrnnd(q, r, nh, nl, d) \
774 asm("divu %2,%0" : "=D"(q), "=z"(r) : "D"(d), "0"(nl), "1"(nh))
775 # define sdiv_qrnnd(q, r, nh, nl, d) \
776 asm("div %2,%0" : "=D"(q), "=z"(r) : "D"(d), "0"(nl), "1"(nh))
777 # define UMUL_TIME 3
778 # define UDIV_TIME 38
779 #endif
780
781 #if defined (__mips__) && W_TYPE_SIZE == 32
782 #define umul_ppmm(w1, w0, u, v) \
783 do { \
784 UDItype __x = (UDItype) (USItype) (u) * (USItype) (v); \
785 (w1) = (USItype) (__x >> 32); \
786 (w0) = (USItype) (__x); \
787 } while (0)
788 #define UMUL_TIME 10
789 #define UDIV_TIME 100
790
791 #if (__mips == 32 || __mips == 64) && ! __mips16
792 #define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clz (X))
793 #define COUNT_LEADING_ZEROS_0 32
794 #endif
795 #endif /* __mips__ */
796
797 #if defined (__ns32000__) && W_TYPE_SIZE == 32
798 #define umul_ppmm(w1, w0, u, v) \
799 ({union {UDItype __ll; \
800 struct {USItype __l, __h;} __i; \
801 } __xx; \
802 __asm__ ("meid %2,%0" \
803 : "=g" (__xx.__ll) \
804 : "%0" ((USItype) (u)), \
805 "g" ((USItype) (v))); \
806 (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
807 #define __umulsidi3(u, v) \
808 ({UDItype __w; \
809 __asm__ ("meid %2,%0" \
810 : "=g" (__w) \
811 : "%0" ((USItype) (u)), \
812 "g" ((USItype) (v))); \
813 __w; })
814 #define udiv_qrnnd(q, r, n1, n0, d) \
815 ({union {UDItype __ll; \
816 struct {USItype __l, __h;} __i; \
817 } __xx; \
818 __xx.__i.__h = (n1); __xx.__i.__l = (n0); \
819 __asm__ ("deid %2,%0" \
820 : "=g" (__xx.__ll) \
821 : "0" (__xx.__ll), \
822 "g" ((USItype) (d))); \
823 (r) = __xx.__i.__l; (q) = __xx.__i.__h; })
824 #define count_trailing_zeros(count,x) \
825 do { \
826 __asm__ ("ffsd %2,%0" \
827 : "=r" ((USItype) (count)) \
828 : "0" ((USItype) 0), \
829 "r" ((USItype) (x))); \
830 } while (0)
831 #endif /* __ns32000__ */
832
833 /* FIXME: We should test _IBMR2 here when we add assembly support for the
834 system vendor compilers.
835 FIXME: What's needed for gcc PowerPC VxWorks? __vxworks__ is not good
836 enough, since that hits ARM and m68k too. */
837 #if (defined (_ARCH_PPC) /* AIX */ \
838 || defined (_ARCH_PWR) /* AIX */ \
839 || defined (_ARCH_COM) /* AIX */ \
840 || defined (__powerpc__) /* gcc */ \
841 || defined (__POWERPC__) /* BEOS */ \
842 || defined (__ppc__) /* Darwin */ \
843 || (defined (PPC) && ! defined (CPU_FAMILY)) /* gcc 2.7.x GNU&SysV */ \
844 || (defined (PPC) && defined (CPU_FAMILY) /* VxWorks */ \
845 && CPU_FAMILY == PPC) \
846 ) && W_TYPE_SIZE == 32
847 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
848 do { \
849 if (__builtin_constant_p (bh) && (bh) == 0) \
850 __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{aze|addze} %0,%2" \
851 : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
852 else if (__builtin_constant_p (bh) && (bh) == ~(USItype) 0) \
853 __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{ame|addme} %0,%2" \
854 : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
855 else \
856 __asm__ ("{a%I5|add%I5c} %1,%4,%5\n\t{ae|adde} %0,%2,%3" \
857 : "=r" (sh), "=&r" (sl) \
858 : "%r" (ah), "r" (bh), "%r" (al), "rI" (bl)); \
859 } while (0)
860 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
861 do { \
862 if (__builtin_constant_p (ah) && (ah) == 0) \
863 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfze|subfze} %0,%2" \
864 : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
865 else if (__builtin_constant_p (ah) && (ah) == ~(USItype) 0) \
866 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfme|subfme} %0,%2" \
867 : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
868 else if (__builtin_constant_p (bh) && (bh) == 0) \
869 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{ame|addme} %0,%2" \
870 : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
871 else if (__builtin_constant_p (bh) && (bh) == ~(USItype) 0) \
872 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{aze|addze} %0,%2" \
873 : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
874 else \
875 __asm__ ("{sf%I4|subf%I4c} %1,%5,%4\n\t{sfe|subfe} %0,%3,%2" \
876 : "=r" (sh), "=&r" (sl) \
877 : "r" (ah), "r" (bh), "rI" (al), "r" (bl)); \
878 } while (0)
879 #define count_leading_zeros(count, x) \
880 __asm__ ("{cntlz|cntlzw} %0,%1" : "=r" (count) : "r" (x))
881 #define COUNT_LEADING_ZEROS_0 32
882 #if defined (_ARCH_PPC) || defined (__powerpc__) || defined (__POWERPC__) \
883 || defined (__ppc__) \
884 || (defined (PPC) && ! defined (CPU_FAMILY)) /* gcc 2.7.x GNU&SysV */ \
885 || (defined (PPC) && defined (CPU_FAMILY) /* VxWorks */ \
886 && CPU_FAMILY == PPC)
887 #define umul_ppmm(ph, pl, m0, m1) \
888 do { \
889 USItype __m0 = (m0), __m1 = (m1); \
890 __asm__ ("mulhwu %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
891 (pl) = __m0 * __m1; \
892 } while (0)
893 #define UMUL_TIME 15
894 #define smul_ppmm(ph, pl, m0, m1) \
895 do { \
896 SItype __m0 = (m0), __m1 = (m1); \
897 __asm__ ("mulhw %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
898 (pl) = __m0 * __m1; \
899 } while (0)
900 #define SMUL_TIME 14
901 #define UDIV_TIME 120
902 #elif defined (_ARCH_PWR)
903 #define UMUL_TIME 8
904 #define smul_ppmm(xh, xl, m0, m1) \
905 __asm__ ("mul %0,%2,%3" : "=r" (xh), "=q" (xl) : "r" (m0), "r" (m1))
906 #define SMUL_TIME 4
907 #define sdiv_qrnnd(q, r, nh, nl, d) \
908 __asm__ ("div %0,%2,%4" : "=r" (q), "=q" (r) : "r" (nh), "1" (nl), "r" (d))
909 #define UDIV_TIME 100
910 #endif
911 #endif /* 32-bit POWER architecture variants. */
912
913 /* We should test _IBMR2 here when we add assembly support for the system
914 vendor compilers. */
915 #if (defined (_ARCH_PPC64) || defined (__powerpc64__)) && W_TYPE_SIZE == 64
916 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
917 do { \
918 if (__builtin_constant_p (bh) && (bh) == 0) \
919 __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{aze|addze} %0,%2" \
920 : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
921 else if (__builtin_constant_p (bh) && (bh) == ~(UDItype) 0) \
922 __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{ame|addme} %0,%2" \
923 : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
924 else \
925 __asm__ ("{a%I5|add%I5c} %1,%4,%5\n\t{ae|adde} %0,%2,%3" \
926 : "=r" (sh), "=&r" (sl) \
927 : "%r" (ah), "r" (bh), "%r" (al), "rI" (bl)); \
928 } while (0)
929 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
930 do { \
931 if (__builtin_constant_p (ah) && (ah) == 0) \
932 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfze|subfze} %0,%2" \
933 : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
934 else if (__builtin_constant_p (ah) && (ah) == ~(UDItype) 0) \
935 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfme|subfme} %0,%2" \
936 : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
937 else if (__builtin_constant_p (bh) && (bh) == 0) \
938 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{ame|addme} %0,%2" \
939 : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
940 else if (__builtin_constant_p (bh) && (bh) == ~(UDItype) 0) \
941 __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{aze|addze} %0,%2" \
942 : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
943 else \
944 __asm__ ("{sf%I4|subf%I4c} %1,%5,%4\n\t{sfe|subfe} %0,%3,%2" \
945 : "=r" (sh), "=&r" (sl) \
946 : "r" (ah), "r" (bh), "rI" (al), "r" (bl)); \
947 } while (0)
948 #define count_leading_zeros(count, x) \
949 __asm__ ("cntlzd %0,%1" : "=r" (count) : "r" (x))
950 #define COUNT_LEADING_ZEROS_0 64
951 #define umul_ppmm(ph, pl, m0, m1) \
952 do { \
953 UDItype __m0 = (m0), __m1 = (m1); \
954 __asm__ ("mulhdu %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
955 (pl) = __m0 * __m1; \
956 } while (0)
957 #define UMUL_TIME 15
958 #define smul_ppmm(ph, pl, m0, m1) \
959 do { \
960 DItype __m0 = (m0), __m1 = (m1); \
961 __asm__ ("mulhd %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
962 (pl) = __m0 * __m1; \
963 } while (0)
964 #define SMUL_TIME 14 /* ??? */
965 #define UDIV_TIME 120 /* ??? */
966 #endif /* 64-bit PowerPC. */
967
968 #if defined (__ibm032__) /* RT/ROMP */ && W_TYPE_SIZE == 32
969 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
970 __asm__ ("a %1,%5\n\tae %0,%3" \
971 : "=r" ((USItype) (sh)), \
972 "=&r" ((USItype) (sl)) \
973 : "%0" ((USItype) (ah)), \
974 "r" ((USItype) (bh)), \
975 "%1" ((USItype) (al)), \
976 "r" ((USItype) (bl)))
977 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
978 __asm__ ("s %1,%5\n\tse %0,%3" \
979 : "=r" ((USItype) (sh)), \
980 "=&r" ((USItype) (sl)) \
981 : "0" ((USItype) (ah)), \
982 "r" ((USItype) (bh)), \
983 "1" ((USItype) (al)), \
984 "r" ((USItype) (bl)))
985 #define umul_ppmm(ph, pl, m0, m1) \
986 do { \
987 USItype __m0 = (m0), __m1 = (m1); \
988 __asm__ ( \
989 "s r2,r2\n" \
990 " mts r10,%2\n" \
991 " m r2,%3\n" \
992 " m r2,%3\n" \
993 " m r2,%3\n" \
994 " m r2,%3\n" \
995 " m r2,%3\n" \
996 " m r2,%3\n" \
997 " m r2,%3\n" \
998 " m r2,%3\n" \
999 " m r2,%3\n" \
1000 " m r2,%3\n" \
1001 " m r2,%3\n" \
1002 " m r2,%3\n" \
1003 " m r2,%3\n" \
1004 " m r2,%3\n" \
1005 " m r2,%3\n" \
1006 " m r2,%3\n" \
1007 " cas %0,r2,r0\n" \
1008 " mfs r10,%1" \
1009 : "=r" ((USItype) (ph)), \
1010 "=r" ((USItype) (pl)) \
1011 : "%r" (__m0), \
1012 "r" (__m1) \
1013 : "r2"); \
1014 (ph) += ((((SItype) __m0 >> 31) & __m1) \
1015 + (((SItype) __m1 >> 31) & __m0)); \
1016 } while (0)
1017 #define UMUL_TIME 20
1018 #define UDIV_TIME 200
1019 #define count_leading_zeros(count, x) \
1020 do { \
1021 if ((x) >= 0x10000) \
1022 __asm__ ("clz %0,%1" \
1023 : "=r" ((USItype) (count)) \
1024 : "r" ((USItype) (x) >> 16)); \
1025 else \
1026 { \
1027 __asm__ ("clz %0,%1" \
1028 : "=r" ((USItype) (count)) \
1029 : "r" ((USItype) (x))); \
1030 (count) += 16; \
1031 } \
1032 } while (0)
1033 #endif
1034
1035 #if defined(__sh__) && !__SHMEDIA__ && W_TYPE_SIZE == 32
1036 #ifndef __sh1__
1037 #define umul_ppmm(w1, w0, u, v) \
1038 __asm__ ( \
1039 "dmulu.l %2,%3\n\tsts%M1 macl,%1\n\tsts%M0 mach,%0" \
1040 : "=r<" ((USItype)(w1)), \
1041 "=r<" ((USItype)(w0)) \
1042 : "r" ((USItype)(u)), \
1043 "r" ((USItype)(v)) \
1044 : "macl", "mach")
1045 #define UMUL_TIME 5
1046 #endif
1047
1048 /* This is the same algorithm as __udiv_qrnnd_c. */
1049 #define UDIV_NEEDS_NORMALIZATION 1
1050
1051 #define udiv_qrnnd(q, r, n1, n0, d) \
1052 do { \
1053 extern UWtype __udiv_qrnnd_16 (UWtype, UWtype) \
1054 __attribute__ ((visibility ("hidden"))); \
1055 /* r0: rn r1: qn */ /* r0: n1 r4: n0 r5: d r6: d1 */ /* r2: __m */ \
1056 __asm__ ( \
1057 "mov%M4 %4,r5\n" \
1058 " swap.w %3,r4\n" \
1059 " swap.w r5,r6\n" \
1060 " jsr @%5\n" \
1061 " shll16 r6\n" \
1062 " swap.w r4,r4\n" \
1063 " jsr @%5\n" \
1064 " swap.w r1,%0\n" \
1065 " or r1,%0" \
1066 : "=r" (q), "=&z" (r) \
1067 : "1" (n1), "r" (n0), "rm" (d), "r" (&__udiv_qrnnd_16) \
1068 : "r1", "r2", "r4", "r5", "r6", "pr", "t"); \
1069 } while (0)
1070
1071 #define UDIV_TIME 80
1072
1073 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1074 __asm__ ("clrt;subc %5,%1; subc %4,%0" \
1075 : "=r" (sh), "=r" (sl) \
1076 : "0" (ah), "1" (al), "r" (bh), "r" (bl) : "t")
1077
1078 #endif /* __sh__ */
1079
1080 #if defined (__SH5__) && __SHMEDIA__ && W_TYPE_SIZE == 32
1081 #define __umulsidi3(u,v) ((UDItype)(USItype)u*(USItype)v)
1082 #define count_leading_zeros(count, x) \
1083 do \
1084 { \
1085 UDItype x_ = (USItype)(x); \
1086 SItype c_; \
1087 \
1088 __asm__ ("nsb %1, %0" : "=r" (c_) : "r" (x_)); \
1089 (count) = c_ - 31; \
1090 } \
1091 while (0)
1092 #define COUNT_LEADING_ZEROS_0 32
1093 #endif
1094
1095 #if defined (__sparc__) && !defined (__arch64__) && !defined (__sparcv9) \
1096 && W_TYPE_SIZE == 32
1097 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1098 __asm__ ("addcc %r4,%5,%1\n\taddx %r2,%3,%0" \
1099 : "=r" ((USItype) (sh)), \
1100 "=&r" ((USItype) (sl)) \
1101 : "%rJ" ((USItype) (ah)), \
1102 "rI" ((USItype) (bh)), \
1103 "%rJ" ((USItype) (al)), \
1104 "rI" ((USItype) (bl)) \
1105 __CLOBBER_CC)
1106 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1107 __asm__ ("subcc %r4,%5,%1\n\tsubx %r2,%3,%0" \
1108 : "=r" ((USItype) (sh)), \
1109 "=&r" ((USItype) (sl)) \
1110 : "rJ" ((USItype) (ah)), \
1111 "rI" ((USItype) (bh)), \
1112 "rJ" ((USItype) (al)), \
1113 "rI" ((USItype) (bl)) \
1114 __CLOBBER_CC)
1115 #if defined (__sparc_v8__)
1116 #define umul_ppmm(w1, w0, u, v) \
1117 __asm__ ("umul %2,%3,%1;rd %%y,%0" \
1118 : "=r" ((USItype) (w1)), \
1119 "=r" ((USItype) (w0)) \
1120 : "r" ((USItype) (u)), \
1121 "r" ((USItype) (v)))
1122 #define udiv_qrnnd(__q, __r, __n1, __n0, __d) \
1123 __asm__ ("mov %2,%%y;nop;nop;nop;udiv %3,%4,%0;umul %0,%4,%1;sub %3,%1,%1"\
1124 : "=&r" ((USItype) (__q)), \
1125 "=&r" ((USItype) (__r)) \
1126 : "r" ((USItype) (__n1)), \
1127 "r" ((USItype) (__n0)), \
1128 "r" ((USItype) (__d)))
1129 #else
1130 #if defined (__sparclite__)
1131 /* This has hardware multiply but not divide. It also has two additional
1132 instructions scan (ffs from high bit) and divscc. */
1133 #define umul_ppmm(w1, w0, u, v) \
1134 __asm__ ("umul %2,%3,%1;rd %%y,%0" \
1135 : "=r" ((USItype) (w1)), \
1136 "=r" ((USItype) (w0)) \
1137 : "r" ((USItype) (u)), \
1138 "r" ((USItype) (v)))
1139 #define udiv_qrnnd(q, r, n1, n0, d) \
1140 __asm__ ("! Inlined udiv_qrnnd\n" \
1141 " wr %%g0,%2,%%y ! Not a delayed write for sparclite\n" \
1142 " tst %%g0\n" \
1143 " divscc %3,%4,%%g1\n" \
1144 " divscc %%g1,%4,%%g1\n" \
1145 " divscc %%g1,%4,%%g1\n" \
1146 " divscc %%g1,%4,%%g1\n" \
1147 " divscc %%g1,%4,%%g1\n" \
1148 " divscc %%g1,%4,%%g1\n" \
1149 " divscc %%g1,%4,%%g1\n" \
1150 " divscc %%g1,%4,%%g1\n" \
1151 " divscc %%g1,%4,%%g1\n" \
1152 " divscc %%g1,%4,%%g1\n" \
1153 " divscc %%g1,%4,%%g1\n" \
1154 " divscc %%g1,%4,%%g1\n" \
1155 " divscc %%g1,%4,%%g1\n" \
1156 " divscc %%g1,%4,%%g1\n" \
1157 " divscc %%g1,%4,%%g1\n" \
1158 " divscc %%g1,%4,%%g1\n" \
1159 " divscc %%g1,%4,%%g1\n" \
1160 " divscc %%g1,%4,%%g1\n" \
1161 " divscc %%g1,%4,%%g1\n" \
1162 " divscc %%g1,%4,%%g1\n" \
1163 " divscc %%g1,%4,%%g1\n" \
1164 " divscc %%g1,%4,%%g1\n" \
1165 " divscc %%g1,%4,%%g1\n" \
1166 " divscc %%g1,%4,%%g1\n" \
1167 " divscc %%g1,%4,%%g1\n" \
1168 " divscc %%g1,%4,%%g1\n" \
1169 " divscc %%g1,%4,%%g1\n" \
1170 " divscc %%g1,%4,%%g1\n" \
1171 " divscc %%g1,%4,%%g1\n" \
1172 " divscc %%g1,%4,%%g1\n" \
1173 " divscc %%g1,%4,%%g1\n" \
1174 " divscc %%g1,%4,%0\n" \
1175 " rd %%y,%1\n" \
1176 " bl,a 1f\n" \
1177 " add %1,%4,%1\n" \
1178 "1: ! End of inline udiv_qrnnd" \
1179 : "=r" ((USItype) (q)), \
1180 "=r" ((USItype) (r)) \
1181 : "r" ((USItype) (n1)), \
1182 "r" ((USItype) (n0)), \
1183 "rI" ((USItype) (d)) \
1184 : "g1" __AND_CLOBBER_CC)
1185 #define UDIV_TIME 37
1186 #define count_leading_zeros(count, x) \
1187 do { \
1188 __asm__ ("scan %1,1,%0" \
1189 : "=r" ((USItype) (count)) \
1190 : "r" ((USItype) (x))); \
1191 } while (0)
1192 /* Early sparclites return 63 for an argument of 0, but they warn that future
1193 implementations might change this. Therefore, leave COUNT_LEADING_ZEROS_0
1194 undefined. */
1195 #else
1196 /* SPARC without integer multiplication and divide instructions.
1197 (i.e. at least Sun4/20,40,60,65,75,110,260,280,330,360,380,470,490) */
1198 #define umul_ppmm(w1, w0, u, v) \
1199 __asm__ ("! Inlined umul_ppmm\n" \
1200 " wr %%g0,%2,%%y ! SPARC has 0-3 delay insn after a wr\n"\
1201 " sra %3,31,%%o5 ! Don't move this insn\n" \
1202 " and %2,%%o5,%%o5 ! Don't move this insn\n" \
1203 " andcc %%g0,0,%%g1 ! Don't move this insn\n" \
1204 " mulscc %%g1,%3,%%g1\n" \
1205 " mulscc %%g1,%3,%%g1\n" \
1206 " mulscc %%g1,%3,%%g1\n" \
1207 " mulscc %%g1,%3,%%g1\n" \
1208 " mulscc %%g1,%3,%%g1\n" \
1209 " mulscc %%g1,%3,%%g1\n" \
1210 " mulscc %%g1,%3,%%g1\n" \
1211 " mulscc %%g1,%3,%%g1\n" \
1212 " mulscc %%g1,%3,%%g1\n" \
1213 " mulscc %%g1,%3,%%g1\n" \
1214 " mulscc %%g1,%3,%%g1\n" \
1215 " mulscc %%g1,%3,%%g1\n" \
1216 " mulscc %%g1,%3,%%g1\n" \
1217 " mulscc %%g1,%3,%%g1\n" \
1218 " mulscc %%g1,%3,%%g1\n" \
1219 " mulscc %%g1,%3,%%g1\n" \
1220 " mulscc %%g1,%3,%%g1\n" \
1221 " mulscc %%g1,%3,%%g1\n" \
1222 " mulscc %%g1,%3,%%g1\n" \
1223 " mulscc %%g1,%3,%%g1\n" \
1224 " mulscc %%g1,%3,%%g1\n" \
1225 " mulscc %%g1,%3,%%g1\n" \
1226 " mulscc %%g1,%3,%%g1\n" \
1227 " mulscc %%g1,%3,%%g1\n" \
1228 " mulscc %%g1,%3,%%g1\n" \
1229 " mulscc %%g1,%3,%%g1\n" \
1230 " mulscc %%g1,%3,%%g1\n" \
1231 " mulscc %%g1,%3,%%g1\n" \
1232 " mulscc %%g1,%3,%%g1\n" \
1233 " mulscc %%g1,%3,%%g1\n" \
1234 " mulscc %%g1,%3,%%g1\n" \
1235 " mulscc %%g1,%3,%%g1\n" \
1236 " mulscc %%g1,0,%%g1\n" \
1237 " add %%g1,%%o5,%0\n" \
1238 " rd %%y,%1" \
1239 : "=r" ((USItype) (w1)), \
1240 "=r" ((USItype) (w0)) \
1241 : "%rI" ((USItype) (u)), \
1242 "r" ((USItype) (v)) \
1243 : "g1", "o5" __AND_CLOBBER_CC)
1244 #define UMUL_TIME 39 /* 39 instructions */
1245 /* It's quite necessary to add this much assembler for the sparc.
1246 The default udiv_qrnnd (in C) is more than 10 times slower! */
1247 #define udiv_qrnnd(__q, __r, __n1, __n0, __d) \
1248 __asm__ ("! Inlined udiv_qrnnd\n" \
1249 " mov 32,%%g1\n" \
1250 " subcc %1,%2,%%g0\n" \
1251 "1: bcs 5f\n" \
1252 " addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n" \
1253 " sub %1,%2,%1 ! this kills msb of n\n" \
1254 " addx %1,%1,%1 ! so this can't give carry\n" \
1255 " subcc %%g1,1,%%g1\n" \
1256 "2: bne 1b\n" \
1257 " subcc %1,%2,%%g0\n" \
1258 " bcs 3f\n" \
1259 " addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n" \
1260 " b 3f\n" \
1261 " sub %1,%2,%1 ! this kills msb of n\n" \
1262 "4: sub %1,%2,%1\n" \
1263 "5: addxcc %1,%1,%1\n" \
1264 " bcc 2b\n" \
1265 " subcc %%g1,1,%%g1\n" \
1266 "! Got carry from n. Subtract next step to cancel this carry.\n" \
1267 " bne 4b\n" \
1268 " addcc %0,%0,%0 ! shift n1n0 and a 0-bit in lsb\n" \
1269 " sub %1,%2,%1\n" \
1270 "3: xnor %0,0,%0\n" \
1271 " ! End of inline udiv_qrnnd" \
1272 : "=&r" ((USItype) (__q)), \
1273 "=&r" ((USItype) (__r)) \
1274 : "r" ((USItype) (__d)), \
1275 "1" ((USItype) (__n1)), \
1276 "0" ((USItype) (__n0)) : "g1" __AND_CLOBBER_CC)
1277 #define UDIV_TIME (3+7*32) /* 7 instructions/iteration. 32 iterations. */
1278 #endif /* __sparclite__ */
1279 #endif /* __sparc_v8__ */
1280 #endif /* sparc32 */
1281
1282 #if ((defined (__sparc__) && defined (__arch64__)) || defined (__sparcv9)) \
1283 && W_TYPE_SIZE == 64
1284 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1285 __asm__ ("addcc %r4,%5,%1\n\t" \
1286 "add %r2,%3,%0\n\t" \
1287 "bcs,a,pn %%xcc, 1f\n\t" \
1288 "add %0, 1, %0\n" \
1289 "1:" \
1290 : "=r" ((UDItype)(sh)), \
1291 "=&r" ((UDItype)(sl)) \
1292 : "%rJ" ((UDItype)(ah)), \
1293 "rI" ((UDItype)(bh)), \
1294 "%rJ" ((UDItype)(al)), \
1295 "rI" ((UDItype)(bl)) \
1296 __CLOBBER_CC)
1297
1298 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1299 __asm__ ("subcc %r4,%5,%1\n\t" \
1300 "sub %r2,%3,%0\n\t" \
1301 "bcs,a,pn %%xcc, 1f\n\t" \
1302 "sub %0, 1, %0\n\t" \
1303 "1:" \
1304 : "=r" ((UDItype)(sh)), \
1305 "=&r" ((UDItype)(sl)) \
1306 : "rJ" ((UDItype)(ah)), \
1307 "rI" ((UDItype)(bh)), \
1308 "rJ" ((UDItype)(al)), \
1309 "rI" ((UDItype)(bl)) \
1310 __CLOBBER_CC)
1311
1312 #define umul_ppmm(wh, wl, u, v) \
1313 do { \
1314 UDItype tmp1, tmp2, tmp3, tmp4; \
1315 __asm__ __volatile__ ( \
1316 "srl %7,0,%3\n\t" \
1317 "mulx %3,%6,%1\n\t" \
1318 "srlx %6,32,%2\n\t" \
1319 "mulx %2,%3,%4\n\t" \
1320 "sllx %4,32,%5\n\t" \
1321 "srl %6,0,%3\n\t" \
1322 "sub %1,%5,%5\n\t" \
1323 "srlx %5,32,%5\n\t" \
1324 "addcc %4,%5,%4\n\t" \
1325 "srlx %7,32,%5\n\t" \
1326 "mulx %3,%5,%3\n\t" \
1327 "mulx %2,%5,%5\n\t" \
1328 "sethi %%hi(0x80000000),%2\n\t" \
1329 "addcc %4,%3,%4\n\t" \
1330 "srlx %4,32,%4\n\t" \
1331 "add %2,%2,%2\n\t" \
1332 "movcc %%xcc,%%g0,%2\n\t" \
1333 "addcc %5,%4,%5\n\t" \
1334 "sllx %3,32,%3\n\t" \
1335 "add %1,%3,%1\n\t" \
1336 "add %5,%2,%0" \
1337 : "=r" ((UDItype)(wh)), \
1338 "=&r" ((UDItype)(wl)), \
1339 "=&r" (tmp1), "=&r" (tmp2), "=&r" (tmp3), "=&r" (tmp4) \
1340 : "r" ((UDItype)(u)), \
1341 "r" ((UDItype)(v)) \
1342 __CLOBBER_CC); \
1343 } while (0)
1344 #define UMUL_TIME 96
1345 #define UDIV_TIME 230
1346 #endif /* sparc64 */
1347
1348 #if defined (__vax__) && W_TYPE_SIZE == 32
1349 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1350 __asm__ ("addl2 %5,%1\n\tadwc %3,%0" \
1351 : "=g" ((USItype) (sh)), \
1352 "=&g" ((USItype) (sl)) \
1353 : "%0" ((USItype) (ah)), \
1354 "g" ((USItype) (bh)), \
1355 "%1" ((USItype) (al)), \
1356 "g" ((USItype) (bl)))
1357 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1358 __asm__ ("subl2 %5,%1\n\tsbwc %3,%0" \
1359 : "=g" ((USItype) (sh)), \
1360 "=&g" ((USItype) (sl)) \
1361 : "0" ((USItype) (ah)), \
1362 "g" ((USItype) (bh)), \
1363 "1" ((USItype) (al)), \
1364 "g" ((USItype) (bl)))
1365 #define umul_ppmm(xh, xl, m0, m1) \
1366 do { \
1367 union { \
1368 UDItype __ll; \
1369 struct {USItype __l, __h;} __i; \
1370 } __xx; \
1371 USItype __m0 = (m0), __m1 = (m1); \
1372 __asm__ ("emul %1,%2,$0,%0" \
1373 : "=r" (__xx.__ll) \
1374 : "g" (__m0), \
1375 "g" (__m1)); \
1376 (xh) = __xx.__i.__h; \
1377 (xl) = __xx.__i.__l; \
1378 (xh) += ((((SItype) __m0 >> 31) & __m1) \
1379 + (((SItype) __m1 >> 31) & __m0)); \
1380 } while (0)
1381 #define sdiv_qrnnd(q, r, n1, n0, d) \
1382 do { \
1383 union {DItype __ll; \
1384 struct {SItype __l, __h;} __i; \
1385 } __xx; \
1386 __xx.__i.__h = n1; __xx.__i.__l = n0; \
1387 __asm__ ("ediv %3,%2,%0,%1" \
1388 : "=g" (q), "=g" (r) \
1389 : "g" (__xx.__ll), "g" (d)); \
1390 } while (0)
1391 #endif /* __vax__ */
1392
1393 #ifdef _TMS320C6X
1394 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1395 do \
1396 { \
1397 UDItype __ll; \
1398 __asm__ ("addu .l1 %1, %2, %0" \
1399 : "=a" (__ll) : "a" (al), "a" (bl)); \
1400 (sl) = (USItype)__ll; \
1401 (sh) = ((USItype)(__ll >> 32)) + (ah) + (bh); \
1402 } \
1403 while (0)
1404
1405 #ifdef _TMS320C6400_PLUS
1406 #define __umulsidi3(u,v) ((UDItype)(USItype)u*(USItype)v)
1407 #define umul_ppmm(w1, w0, u, v) \
1408 do { \
1409 UDItype __x = (UDItype) (USItype) (u) * (USItype) (v); \
1410 (w1) = (USItype) (__x >> 32); \
1411 (w0) = (USItype) (__x); \
1412 } while (0)
1413 #endif /* _TMS320C6400_PLUS */
1414
1415 #define count_leading_zeros(count, x) ((count) = __builtin_clz (x))
1416 #ifdef _TMS320C6400
1417 #define count_trailing_zeros(count, x) ((count) = __builtin_ctz (x))
1418 #endif
1419 #define UMUL_TIME 4
1420 #define UDIV_TIME 40
1421 #endif /* _TMS320C6X */
1422
1423 #if defined (__xtensa__) && W_TYPE_SIZE == 32
1424 /* This code is not Xtensa-configuration-specific, so rely on the compiler
1425 to expand builtin functions depending on what configuration features
1426 are available. This avoids library calls when the operation can be
1427 performed in-line. */
1428 #define umul_ppmm(w1, w0, u, v) \
1429 do { \
1430 DWunion __w; \
1431 __w.ll = __builtin_umulsidi3 (u, v); \
1432 w1 = __w.s.high; \
1433 w0 = __w.s.low; \
1434 } while (0)
1435 #define __umulsidi3(u, v) __builtin_umulsidi3 (u, v)
1436 #define count_leading_zeros(COUNT, X) ((COUNT) = __builtin_clz (X))
1437 #define count_trailing_zeros(COUNT, X) ((COUNT) = __builtin_ctz (X))
1438 #endif /* __xtensa__ */
1439
1440 #if defined xstormy16
1441 extern UHItype __stormy16_count_leading_zeros (UHItype);
1442 #define count_leading_zeros(count, x) \
1443 do \
1444 { \
1445 UHItype size; \
1446 \
1447 /* We assume that W_TYPE_SIZE is a multiple of 16... */ \
1448 for ((count) = 0, size = W_TYPE_SIZE; size; size -= 16) \
1449 { \
1450 UHItype c; \
1451 \
1452 c = __clzhi2 ((x) >> (size - 16)); \
1453 (count) += c; \
1454 if (c != 16) \
1455 break; \
1456 } \
1457 } \
1458 while (0)
1459 #define COUNT_LEADING_ZEROS_0 W_TYPE_SIZE
1460 #endif
1461
1462 #if defined (__z8000__) && W_TYPE_SIZE == 16
1463 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1464 __asm__ ("add %H1,%H5\n\tadc %H0,%H3" \
1465 : "=r" ((unsigned int)(sh)), \
1466 "=&r" ((unsigned int)(sl)) \
1467 : "%0" ((unsigned int)(ah)), \
1468 "r" ((unsigned int)(bh)), \
1469 "%1" ((unsigned int)(al)), \
1470 "rQR" ((unsigned int)(bl)))
1471 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1472 __asm__ ("sub %H1,%H5\n\tsbc %H0,%H3" \
1473 : "=r" ((unsigned int)(sh)), \
1474 "=&r" ((unsigned int)(sl)) \
1475 : "0" ((unsigned int)(ah)), \
1476 "r" ((unsigned int)(bh)), \
1477 "1" ((unsigned int)(al)), \
1478 "rQR" ((unsigned int)(bl)))
1479 #define umul_ppmm(xh, xl, m0, m1) \
1480 do { \
1481 union {long int __ll; \
1482 struct {unsigned int __h, __l;} __i; \
1483 } __xx; \
1484 unsigned int __m0 = (m0), __m1 = (m1); \
1485 __asm__ ("mult %S0,%H3" \
1486 : "=r" (__xx.__i.__h), \
1487 "=r" (__xx.__i.__l) \
1488 : "%1" (__m0), \
1489 "rQR" (__m1)); \
1490 (xh) = __xx.__i.__h; (xl) = __xx.__i.__l; \
1491 (xh) += ((((signed int) __m0 >> 15) & __m1) \
1492 + (((signed int) __m1 >> 15) & __m0)); \
1493 } while (0)
1494 #endif /* __z8000__ */
1495
1496 #endif /* __GNUC__ */
1497
1498 /* If this machine has no inline assembler, use C macros. */
1499
1500 #if !defined (add_ssaaaa)
1501 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1502 do { \
1503 UWtype __x; \
1504 __x = (al) + (bl); \
1505 (sh) = (ah) + (bh) + (__x < (al)); \
1506 (sl) = __x; \
1507 } while (0)
1508 #endif
1509
1510 #if !defined (sub_ddmmss)
1511 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1512 do { \
1513 UWtype __x; \
1514 __x = (al) - (bl); \
1515 (sh) = (ah) - (bh) - (__x > (al)); \
1516 (sl) = __x; \
1517 } while (0)
1518 #endif
1519
1520 /* If we lack umul_ppmm but have smul_ppmm, define umul_ppmm in terms of
1521 smul_ppmm. */
1522 #if !defined (umul_ppmm) && defined (smul_ppmm)
1523 #define umul_ppmm(w1, w0, u, v) \
1524 do { \
1525 UWtype __w1; \
1526 UWtype __xm0 = (u), __xm1 = (v); \
1527 smul_ppmm (__w1, w0, __xm0, __xm1); \
1528 (w1) = __w1 + (-(__xm0 >> (W_TYPE_SIZE - 1)) & __xm1) \
1529 + (-(__xm1 >> (W_TYPE_SIZE - 1)) & __xm0); \
1530 } while (0)
1531 #endif
1532
1533 /* If we still don't have umul_ppmm, define it using plain C. */
1534 #if !defined (umul_ppmm)
1535 #define umul_ppmm(w1, w0, u, v) \
1536 do { \
1537 UWtype __x0, __x1, __x2, __x3; \
1538 UHWtype __ul, __vl, __uh, __vh; \
1539 \
1540 __ul = __ll_lowpart (u); \
1541 __uh = __ll_highpart (u); \
1542 __vl = __ll_lowpart (v); \
1543 __vh = __ll_highpart (v); \
1544 \
1545 __x0 = (UWtype) __ul * __vl; \
1546 __x1 = (UWtype) __ul * __vh; \
1547 __x2 = (UWtype) __uh * __vl; \
1548 __x3 = (UWtype) __uh * __vh; \
1549 \
1550 __x1 += __ll_highpart (__x0);/* this can't give carry */ \
1551 __x1 += __x2; /* but this indeed can */ \
1552 if (__x1 < __x2) /* did we get it? */ \
1553 __x3 += __ll_B; /* yes, add it in the proper pos. */ \
1554 \
1555 (w1) = __x3 + __ll_highpart (__x1); \
1556 (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \
1557 } while (0)
1558 #endif
1559
1560 #if !defined (__umulsidi3)
1561 #define __umulsidi3(u, v) \
1562 ({DWunion __w; \
1563 umul_ppmm (__w.s.high, __w.s.low, u, v); \
1564 __w.ll; })
1565 #endif
1566
1567 /* Define this unconditionally, so it can be used for debugging. */
1568 #define __udiv_qrnnd_c(q, r, n1, n0, d) \
1569 do { \
1570 UWtype __d1, __d0, __q1, __q0; \
1571 UWtype __r1, __r0, __m; \
1572 __d1 = __ll_highpart (d); \
1573 __d0 = __ll_lowpart (d); \
1574 \
1575 __r1 = (n1) % __d1; \
1576 __q1 = (n1) / __d1; \
1577 __m = (UWtype) __q1 * __d0; \
1578 __r1 = __r1 * __ll_B | __ll_highpart (n0); \
1579 if (__r1 < __m) \
1580 { \
1581 __q1--, __r1 += (d); \
1582 if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */\
1583 if (__r1 < __m) \
1584 __q1--, __r1 += (d); \
1585 } \
1586 __r1 -= __m; \
1587 \
1588 __r0 = __r1 % __d1; \
1589 __q0 = __r1 / __d1; \
1590 __m = (UWtype) __q0 * __d0; \
1591 __r0 = __r0 * __ll_B | __ll_lowpart (n0); \
1592 if (__r0 < __m) \
1593 { \
1594 __q0--, __r0 += (d); \
1595 if (__r0 >= (d)) \
1596 if (__r0 < __m) \
1597 __q0--, __r0 += (d); \
1598 } \
1599 __r0 -= __m; \
1600 \
1601 (q) = (UWtype) __q1 * __ll_B | __q0; \
1602 (r) = __r0; \
1603 } while (0)
1604
1605 /* If the processor has no udiv_qrnnd but sdiv_qrnnd, go through
1606 __udiv_w_sdiv (defined in libgcc or elsewhere). */
1607 #if !defined (udiv_qrnnd) && defined (sdiv_qrnnd)
1608 #define udiv_qrnnd(q, r, nh, nl, d) \
1609 do { \
1610 USItype __r; \
1611 (q) = __udiv_w_sdiv (&__r, nh, nl, d); \
1612 (r) = __r; \
1613 } while (0)
1614 #endif
1615
1616 /* If udiv_qrnnd was not defined for this processor, use __udiv_qrnnd_c. */
1617 #if !defined (udiv_qrnnd)
1618 #define UDIV_NEEDS_NORMALIZATION 1
1619 #define udiv_qrnnd __udiv_qrnnd_c
1620 #endif
1621
1622 #if !defined (count_leading_zeros)
1623 #define count_leading_zeros(count, x) \
1624 do { \
1625 UWtype __xr = (x); \
1626 UWtype __a; \
1627 \
1628 if (W_TYPE_SIZE <= 32) \
1629 { \
1630 __a = __xr < ((UWtype)1<<2*__BITS4) \
1631 ? (__xr < ((UWtype)1<<__BITS4) ? 0 : __BITS4) \
1632 : (__xr < ((UWtype)1<<3*__BITS4) ? 2*__BITS4 : 3*__BITS4); \
1633 } \
1634 else \
1635 { \
1636 for (__a = W_TYPE_SIZE - 8; __a > 0; __a -= 8) \
1637 if (((__xr >> __a) & 0xff) != 0) \
1638 break; \
1639 } \
1640 \
1641 (count) = W_TYPE_SIZE - (__clz_tab[__xr >> __a] + __a); \
1642 } while (0)
1643 #define COUNT_LEADING_ZEROS_0 W_TYPE_SIZE
1644 #endif
1645
1646 #if !defined (count_trailing_zeros)
1647 /* Define count_trailing_zeros using count_leading_zeros. The latter might be
1648 defined in asm, but if it is not, the C version above is good enough. */
1649 #define count_trailing_zeros(count, x) \
1650 do { \
1651 UWtype __ctz_x = (x); \
1652 UWtype __ctz_c; \
1653 count_leading_zeros (__ctz_c, __ctz_x & -__ctz_x); \
1654 (count) = W_TYPE_SIZE - 1 - __ctz_c; \
1655 } while (0)
1656 #endif
1657
1658 #ifndef UDIV_NEEDS_NORMALIZATION
1659 #define UDIV_NEEDS_NORMALIZATION 0
1660 #endif
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