Update to LGPL v2.1.
[kopensolaris-gnu/glibc.git] / stdlib / longlong.h
1 /* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
2    Copyright (C) 1991,92,94,95,96,97,98,99,2000,2001 Free Software Foundation, Inc.
3    This file is part of the GNU C Library.
4
5    The GNU C Library is free software; you can redistribute it and/or
6    modify it under the terms of the GNU Lesser General Public
7    License as published by the Free Software Foundation; either
8    version 2.1 of the License, or (at your option) any later version.
9
10    The GNU C Library is distributed in the hope that it will be useful,
11    but WITHOUT ANY WARRANTY; without even the implied warranty of
12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13    Lesser General Public License for more details.
14
15    You should have received a copy of the GNU Lesser General Public
16    License along with the GNU C Library; if not, write to the Free
17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18    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 non-zero 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 (__a29k__) || defined (_AM29K)) && W_TYPE_SIZE == 32
111 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
112   __asm__ ("add %1,%4,%5\n"                                             \
113         "addc %0,%2,%3"                                                 \
114            : "=r" ((USItype) (sh)),                                     \
115             "=&r" ((USItype) (sl))                                      \
116            : "%r" ((USItype) (ah)),                                     \
117              "rI" ((USItype) (bh)),                                     \
118              "%r" ((USItype) (al)),                                     \
119              "rI" ((USItype) (bl)))
120 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
121   __asm__ ("sub %1,%4,%5\n"                                             \
122         "subc %0,%2,%3"                                                 \
123            : "=r" ((USItype) (sh)),                                     \
124              "=&r" ((USItype) (sl))                                     \
125            : "r" ((USItype) (ah)),                                      \
126              "rI" ((USItype) (bh)),                                     \
127              "r" ((USItype) (al)),                                      \
128              "rI" ((USItype) (bl)))
129 #define umul_ppmm(xh, xl, m0, m1) \
130   do {                                                                  \
131     USItype __m0 = (m0), __m1 = (m1);                                   \
132     __asm__ ("multiplu %0,%1,%2"                                        \
133              : "=r" ((USItype) (xl))                                    \
134              : "r" (__m0),                                              \
135                "r" (__m1));                                             \
136     __asm__ ("multmu %0,%1,%2"                                          \
137              : "=r" ((USItype) (xh))                                    \
138              : "r" (__m0),                                              \
139                "r" (__m1));                                             \
140   } while (0)
141 #define udiv_qrnnd(q, r, n1, n0, d) \
142   __asm__ ("dividu %0,%3,%4"                                            \
143            : "=r" ((USItype) (q)),                                      \
144              "=q" ((USItype) (r))                                       \
145            : "1" ((USItype) (n1)),                                      \
146              "r" ((USItype) (n0)),                                      \
147              "r" ((USItype) (d)))
148 #define count_leading_zeros(count, x) \
149     __asm__ ("clz %0,%1"                                                \
150              : "=r" ((USItype) (count))                                 \
151              : "r" ((USItype) (x)))
152 #define COUNT_LEADING_ZEROS_0 32
153 #endif /* __a29k__ */
154
155 #if defined (__alpha) && W_TYPE_SIZE == 64
156 #define umul_ppmm(ph, pl, m0, m1) \
157   do {                                                                  \
158     UDItype __m0 = (m0), __m1 = (m1);                                   \
159     __asm__ ("umulh %r1,%2,%0"                                          \
160              : "=r" ((UDItype) ph)                                      \
161              : "%rJ" (__m0),                                            \
162                "rI" (__m1));                                            \
163     (pl) = __m0 * __m1;                                                 \
164   } while (0)
165 #define UMUL_TIME 46
166 #ifndef LONGLONG_STANDALONE
167 #define udiv_qrnnd(q, r, n1, n0, d) \
168   do { UDItype __r;                                                     \
169     (q) = __udiv_qrnnd (&__r, (n1), (n0), (d));                         \
170     (r) = __r;                                                          \
171   } while (0)
172 extern UDItype __udiv_qrnnd (UDItype *, UDItype, UDItype, UDItype);
173 #define UDIV_TIME 220
174 #endif /* LONGLONG_STANDALONE */
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"                                   \
180         "adc    %0, %2, %3"                                             \
181            : "=r" ((USItype) (sh)),                                     \
182              "=&r" ((USItype) (sl))                                     \
183            : "%r" ((USItype) (ah)),                                     \
184              "rIJ" ((USItype) (bh)),                                    \
185              "%r" ((USItype) (al)),                                     \
186              "rIJ" ((USItype) (bl)))
187 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
188   __asm__ ("sub.f       %1, %4, %5\n"                                   \
189         "sbc    %0, %2, %3"                                             \
190            : "=r" ((USItype) (sh)),                                     \
191              "=&r" ((USItype) (sl))                                     \
192            : "r" ((USItype) (ah)),                                      \
193              "rIJ" ((USItype) (bh)),                                    \
194              "r" ((USItype) (al)),                                      \
195              "rIJ" ((USItype) (bl)))
196 /* Call libgcc1 routine.  */
197 #define umul_ppmm(w1, w0, u, v) \
198 do {                                                                    \
199   DIunion __w;                                                          \
200   __w.ll = __umulsidi3 (u, v);                                          \
201   w1 = __w.s.high;                                                      \
202   w0 = __w.s.low;                                                       \
203 } while (0)
204 #define __umulsidi3 __umulsidi3
205 UDItype __umulsidi3 (USItype, USItype);
206 #endif
207
208 #if defined (__arm__) && W_TYPE_SIZE == 32
209 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
210   __asm__ ("adds        %1, %4, %5\n"                                   \
211         "adc    %0, %2, %3"                                             \
212            : "=r" ((USItype) (sh)),                                     \
213              "=&r" ((USItype) (sl))                                     \
214            : "%r" ((USItype) (ah)),                                     \
215              "rI" ((USItype) (bh)),                                     \
216              "%r" ((USItype) (al)),                                     \
217              "rI" ((USItype) (bl)))
218 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
219   __asm__ ("subs        %1, %4, %5\n"                                   \
220         "sbc    %0, %2, %3"                                             \
221            : "=r" ((USItype) (sh)),                                     \
222              "=&r" ((USItype) (sl))                                     \
223            : "r" ((USItype) (ah)),                                      \
224              "rI" ((USItype) (bh)),                                     \
225              "r" ((USItype) (al)),                                      \
226              "rI" ((USItype) (bl)))
227 #define umul_ppmm(xh, xl, a, b) \
228 {register USItype __t0, __t1, __t2;                                     \
229   __asm__ ("%@ Inlined umul_ppmm\n"                                     \
230         "mov    %2, %5, lsr #16\n"                                      \
231         "mov    %0, %6, lsr #16\n"                                      \
232         "bic    %3, %5, %2, lsl #16\n"                                  \
233         "bic    %4, %6, %0, lsl #16\n"                                  \
234         "mul    %1, %3, %4\n"                                           \
235         "mul    %4, %2, %4\n"                                           \
236         "mul    %3, %0, %3\n"                                           \
237         "mul    %0, %2, %0\n"                                           \
238         "adds   %3, %4, %3\n"                                           \
239         "addcs  %0, %0, #65536\n"                                       \
240         "adds   %1, %1, %3, lsl #16\n"                                  \
241         "adc    %0, %0, %3, lsr #16"                                    \
242            : "=&r" ((USItype) (xh)),                                    \
243              "=r" ((USItype) (xl)),                                     \
244              "=&r" (__t0), "=&r" (__t1), "=r" (__t2)                    \
245            : "r" ((USItype) (a)),                                       \
246              "r" ((USItype) (b)));}
247 #define UMUL_TIME 20
248 #define UDIV_TIME 100
249 #endif /* __arm__ */
250
251 #if defined (__clipper__) && W_TYPE_SIZE == 32
252 #define umul_ppmm(w1, w0, u, v) \
253   ({union {UDItype __ll;                                                \
254            struct {USItype __l, __h;} __i;                              \
255           } __xx;                                                       \
256   __asm__ ("mulwux %2,%0"                                               \
257            : "=r" (__xx.__ll)                                           \
258            : "%0" ((USItype) (u)),                                      \
259              "r" ((USItype) (v)));                                      \
260   (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
261 #define smul_ppmm(w1, w0, u, v) \
262   ({union {DItype __ll;                                                 \
263            struct {SItype __l, __h;} __i;                               \
264           } __xx;                                                       \
265   __asm__ ("mulwx %2,%0"                                                \
266            : "=r" (__xx.__ll)                                           \
267            : "%0" ((SItype) (u)),                                       \
268              "r" ((SItype) (v)));                                       \
269   (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
270 #define __umulsidi3(u, v) \
271   ({UDItype __w;                                                        \
272     __asm__ ("mulwux %2,%0"                                             \
273              : "=r" (__w)                                               \
274              : "%0" ((USItype) (u)),                                    \
275                "r" ((USItype) (v)));                                    \
276     __w; })
277 #endif /* __clipper__ */
278
279 #if defined (__gmicro__) && W_TYPE_SIZE == 32
280 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
281   __asm__ ("add.w %5,%1\n"                                              \
282         "addx %3,%0"                                                    \
283            : "=g" ((USItype) (sh)),                                     \
284              "=&g" ((USItype) (sl))                                     \
285            : "%0" ((USItype) (ah)),                                     \
286              "g" ((USItype) (bh)),                                      \
287              "%1" ((USItype) (al)),                                     \
288              "g" ((USItype) (bl)))
289 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
290   __asm__ ("sub.w %5,%1\n"                                              \
291         "subx %3,%0"                                                    \
292            : "=g" ((USItype) (sh)),                                     \
293              "=&g" ((USItype) (sl))                                     \
294            : "0" ((USItype) (ah)),                                      \
295              "g" ((USItype) (bh)),                                      \
296              "1" ((USItype) (al)),                                      \
297              "g" ((USItype) (bl)))
298 #define umul_ppmm(ph, pl, m0, m1) \
299   __asm__ ("mulx %3,%0,%1"                                              \
300            : "=g" ((USItype) (ph)),                                     \
301              "=r" ((USItype) (pl))                                      \
302            : "%0" ((USItype) (m0)),                                     \
303              "g" ((USItype) (m1)))
304 #define udiv_qrnnd(q, r, nh, nl, d) \
305   __asm__ ("divx %4,%0,%1"                                              \
306            : "=g" ((USItype) (q)),                                      \
307              "=r" ((USItype) (r))                                       \
308            : "1" ((USItype) (nh)),                                      \
309              "0" ((USItype) (nl)),                                      \
310              "g" ((USItype) (d)))
311 #define count_leading_zeros(count, x) \
312   __asm__ ("bsch/1 %1,%0"                                               \
313            : "=g" (count)                                               \
314            : "g" ((USItype) (x)),                                       \
315              "0" ((USItype) 0))
316 #endif
317
318 #if defined (__hppa) && W_TYPE_SIZE == 32
319 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
320   __asm__ ("add %4,%5,%1\n"                                             \
321         "addc %2,%3,%0"                                                 \
322            : "=r" ((USItype) (sh)),                                     \
323              "=&r" ((USItype) (sl))                                     \
324            : "%rM" ((USItype) (ah)),                                    \
325              "rM" ((USItype) (bh)),                                     \
326              "%rM" ((USItype) (al)),                                    \
327              "rM" ((USItype) (bl)))
328 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
329   __asm__ ("sub %4,%5,%1\n"                                             \
330         "subb %2,%3,%0"                                                 \
331            : "=r" ((USItype) (sh)),                                     \
332              "=&r" ((USItype) (sl))                                     \
333            : "rM" ((USItype) (ah)),                                     \
334              "rM" ((USItype) (bh)),                                     \
335              "rM" ((USItype) (al)),                                     \
336              "rM" ((USItype) (bl)))
337 #if defined (_PA_RISC1_1)
338 #define umul_ppmm(w1, w0, u, v) \
339   do {                                                                  \
340     union                                                               \
341       {                                                                 \
342         UDItype __f;                                                    \
343         struct {USItype __w1, __w0;} __w1w0;                            \
344       } __t;                                                            \
345     __asm__ ("xmpyu %1,%2,%0"                                           \
346              : "=x" (__t.__f)                                           \
347              : "x" ((USItype) (u)),                                     \
348                "x" ((USItype) (v)));                                    \
349     (w1) = __t.__w1w0.__w1;                                             \
350     (w0) = __t.__w1w0.__w0;                                             \
351      } while (0)
352 #define UMUL_TIME 8
353 #else
354 #define UMUL_TIME 30
355 #endif
356 #define UDIV_TIME 40
357 #define count_leading_zeros(count, x) \
358   do {                                                                          \
359     USItype __tmp;                                                              \
360     __asm__ (                                                                   \
361         "ldi            1,%0\n"                                                 \
362         "extru,=        %1,15,16,%%r0           ; Bits 31..16 zero?\n"          \
363         "extru,tr       %1,15,16,%1             ; No.  Shift down, skip add.\n" \
364         "ldo            16(%0),%0               ; Yes.  Perform add.\n"         \
365         "extru,=        %1,23,8,%%r0            ; Bits 15..8 zero?\n"           \
366         "extru,tr       %1,23,8,%1              ; No.  Shift down, skip add.\n" \
367         "ldo            8(%0),%0                ; Yes.  Perform add.\n"         \
368         "extru,=        %1,27,4,%%r0            ; Bits 7..4 zero?\n"            \
369         "extru,tr       %1,27,4,%1              ; No.  Shift down, skip add.\n" \
370         "ldo            4(%0),%0                ; Yes.  Perform add.\n"         \
371         "extru,=        %1,29,2,%%r0            ; Bits 3..2 zero?\n"            \
372         "extru,tr       %1,29,2,%1              ; No.  Shift down, skip add.\n" \
373         "ldo            2(%0),%0                ; Yes.  Perform add.\n"         \
374         "extru          %1,30,1,%1              ; Extract bit 1.\n"             \
375         "sub            %0,%1,%0                ; Subtract it."                 \
376         : "=r" (count), "=r" (__tmp) : "1" (x));                                \
377   } while (0)
378 #endif
379
380 #if (defined (__i370__) || defined (__mvs__)) && W_TYPE_SIZE == 32
381 #define umul_ppmm(xh, xl, m0, m1) \
382   do {                                                                  \
383     union {UDItype __ll;                                                \
384            struct {USItype __h, __l;} __i;                              \
385           } __xx;                                                       \
386     USItype __m0 = (m0), __m1 = (m1);                                   \
387     __asm__ ("mr %0,%3"                                                 \
388              : "=r" (__xx.__i.__h),                                     \
389                "=r" (__xx.__i.__l)                                      \
390              : "%1" (__m0),                                             \
391                "r" (__m1));                                             \
392     (xh) = __xx.__i.__h; (xl) = __xx.__i.__l;                           \
393     (xh) += ((((SItype) __m0 >> 31) & __m1)                             \
394              + (((SItype) __m1 >> 31) & __m0));                         \
395   } while (0)
396 #define smul_ppmm(xh, xl, m0, m1) \
397   do {                                                                  \
398     union {DItype __ll;                                                 \
399            struct {USItype __h, __l;} __i;                              \
400           } __xx;                                                       \
401     __asm__ ("mr %0,%3"                                                 \
402              : "=r" (__xx.__i.__h),                                     \
403                "=r" (__xx.__i.__l)                                      \
404              : "%1" (m0),                                               \
405                "r" (m1));                                               \
406     (xh) = __xx.__i.__h; (xl) = __xx.__i.__l;                           \
407   } while (0)
408 #define sdiv_qrnnd(q, r, n1, n0, d) \
409   do {                                                                  \
410     union {DItype __ll;                                                 \
411            struct {USItype __h, __l;} __i;                              \
412           } __xx;                                                       \
413     __xx.__i.__h = n1; __xx.__i.__l = n0;                               \
414     __asm__ ("dr %0,%2"                                                 \
415              : "=r" (__xx.__ll)                                         \
416              : "0" (__xx.__ll), "r" (d));                               \
417     (q) = __xx.__i.__l; (r) = __xx.__i.__h;                             \
418   } while (0)
419 #endif
420
421 #if (defined (__i386__) || defined (__i486__)) && W_TYPE_SIZE == 32
422 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
423   __asm__ ("addl %5,%1\n"                                               \
424         "adcl %3,%0"                                                    \
425            : "=r" ((USItype) (sh)),                                     \
426              "=&r" ((USItype) (sl))                                     \
427            : "%0" ((USItype) (ah)),                                     \
428              "g" ((USItype) (bh)),                                      \
429              "%1" ((USItype) (al)),                                     \
430              "g" ((USItype) (bl)))
431 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
432   __asm__ ("subl %5,%1\n"                                               \
433         "sbbl %3,%0"                                                    \
434            : "=r" ((USItype) (sh)),                                     \
435              "=&r" ((USItype) (sl))                                     \
436            : "0" ((USItype) (ah)),                                      \
437              "g" ((USItype) (bh)),                                      \
438              "1" ((USItype) (al)),                                      \
439              "g" ((USItype) (bl)))
440 #define umul_ppmm(w1, w0, u, v) \
441   __asm__ ("mull %3"                                                    \
442            : "=a" ((USItype) (w0)),                                     \
443              "=d" ((USItype) (w1))                                      \
444            : "%0" ((USItype) (u)),                                      \
445              "rm" ((USItype) (v)))
446 #define udiv_qrnnd(q, r, n1, n0, d) \
447   __asm__ ("divl %4"                                                    \
448            : "=a" ((USItype) (q)),                                      \
449              "=d" ((USItype) (r))                                       \
450            : "0" ((USItype) (n0)),                                      \
451              "1" ((USItype) (n1)),                                      \
452              "rm" ((USItype) (d)))
453 #define count_leading_zeros(count, x) \
454   do {                                                                  \
455     USItype __cbtmp;                                                    \
456     __asm__ ("bsrl %1,%0"                                               \
457              : "=r" (__cbtmp) : "rm" ((USItype) (x)));                  \
458     (count) = __cbtmp ^ 31;                                             \
459   } while (0)
460 #define count_trailing_zeros(count, x) \
461   __asm__ ("bsfl %1,%0" : "=r" (count) : "rm" ((USItype)(x)))
462 #define UMUL_TIME 40
463 #define UDIV_TIME 40
464 #endif /* 80x86 */
465
466 #if defined (__i860__) && W_TYPE_SIZE == 32
467 #if 0
468 /* Make sure these patterns really improve the code before
469    switching them on.  */
470 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
471   do {                                                                  \
472     union                                                               \
473       {                                                                 \
474         DItype __ll;                                                    \
475         struct {USItype __l, __h;} __i;                                 \
476       }  __a, __b, __s;                                                 \
477     __a.__i.__l = (al);                                                 \
478     __a.__i.__h = (ah);                                                 \
479     __b.__i.__l = (bl);                                                 \
480     __b.__i.__h = (bh);                                                 \
481     __asm__ ("fiadd.dd %1,%2,%0"                                        \
482              : "=f" (__s.__ll)                                          \
483              : "%f" (__a.__ll), "f" (__b.__ll));                        \
484     (sh) = __s.__i.__h;                                                 \
485     (sl) = __s.__i.__l;                                                 \
486     } while (0)
487 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
488   do {                                                                  \
489     union                                                               \
490       {                                                                 \
491         DItype __ll;                                                    \
492         struct {USItype __l, __h;} __i;                                 \
493       }  __a, __b, __s;                                                 \
494     __a.__i.__l = (al);                                                 \
495     __a.__i.__h = (ah);                                                 \
496     __b.__i.__l = (bl);                                                 \
497     __b.__i.__h = (bh);                                                 \
498     __asm__ ("fisub.dd %1,%2,%0"                                        \
499              : "=f" (__s.__ll)                                          \
500              : "%f" (__a.__ll), "f" (__b.__ll));                        \
501     (sh) = __s.__i.__h;                                                 \
502     (sl) = __s.__i.__l;                                                 \
503     } while (0)
504 #endif
505 #endif /* __i860__ */
506
507 #if defined (__i960__) && W_TYPE_SIZE == 32
508 #define umul_ppmm(w1, w0, u, v) \
509   ({union {UDItype __ll;                                                \
510            struct {USItype __l, __h;} __i;                              \
511           } __xx;                                                       \
512   __asm__ ("emul        %2,%1,%0"                                       \
513            : "=d" (__xx.__ll)                                           \
514            : "%dI" ((USItype) (u)),                                     \
515              "dI" ((USItype) (v)));                                     \
516   (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
517 #define __umulsidi3(u, v) \
518   ({UDItype __w;                                                        \
519     __asm__ ("emul      %2,%1,%0"                                       \
520              : "=d" (__w)                                               \
521              : "%dI" ((USItype) (u)),                                   \
522                "dI" ((USItype) (v)));                                   \
523     __w; })
524 #endif /* __i960__ */
525
526 #if defined (__M32R__) && W_TYPE_SIZE == 32
527 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
528   /* The cmp clears the condition bit.  */ \
529   __asm__ ("cmp %0,%0\n"                                                \
530         "addx %%5,%1\n"                                                 \
531         "addx %%3,%0"                                                   \
532            : "=r" ((USItype) (sh)),                                     \
533              "=&r" ((USItype) (sl))                                     \
534            : "%0" ((USItype) (ah)),                                     \
535              "r" ((USItype) (bh)),                                      \
536              "%1" ((USItype) (al)),                                     \
537              "r" ((USItype) (bl))                                       \
538            : "cbit")
539 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
540   /* The cmp clears the condition bit.  */ \
541   __asm__ ("cmp %0,%0\n"                                                \
542         "subx %5,%1\n"                                                  \
543         "subx %3,%0"                                                    \
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"                                             \
556         "addx%.l %3,%0"                                                 \
557            : "=d" ((USItype) (sh)),                                     \
558              "=&d" ((USItype) (sl))                                     \
559            : "%0" ((USItype) (ah)),                                     \
560              "d" ((USItype) (bh)),                                      \
561              "%1" ((USItype) (al)),                                     \
562              "g" ((USItype) (bl)))
563 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
564   __asm__ ("sub%.l %5,%1\n"                                             \
565         "subx%.l %3,%0"                                                 \
566            : "=d" ((USItype) (sh)),                                     \
567              "=&d" ((USItype) (sl))                                     \
568            : "0" ((USItype) (ah)),                                      \
569              "d" ((USItype) (bh)),                                      \
570              "1" ((USItype) (al)),                                      \
571              "g" ((USItype) (bl)))
572
573 /* The '020, '030, '040 and CPU32 have 32x32->64 and 64/32->32q-32r. */
574 #if defined (__mc68020__) || defined(mc68020) \
575         || defined(__mc68030__) || defined(mc68030) \
576         || defined(__mc68040__) || defined(mc68040) \
577         || defined(__mcpu32__) || defined(mcpu32) \
578         || defined(__NeXT__)
579 #define umul_ppmm(w1, w0, u, v) \
580   __asm__ ("mulu%.l %3,%1:%0"                                           \
581            : "=d" ((USItype) (w0)),                                     \
582              "=d" ((USItype) (w1))                                      \
583            : "%0" ((USItype) (u)),                                      \
584              "dmi" ((USItype) (v)))
585 #define UMUL_TIME 45
586 #define udiv_qrnnd(q, r, n1, n0, d) \
587   __asm__ ("divu%.l %4,%1:%0"                                           \
588            : "=d" ((USItype) (q)),                                      \
589              "=d" ((USItype) (r))                                       \
590            : "0" ((USItype) (n0)),                                      \
591              "1" ((USItype) (n1)),                                      \
592              "dmi" ((USItype) (d)))
593 #define UDIV_TIME 90
594 #define sdiv_qrnnd(q, r, n1, n0, d) \
595   __asm__ ("divs%.l %4,%1:%0"                                           \
596            : "=d" ((USItype) (q)),                                      \
597              "=d" ((USItype) (r))                                       \
598            : "0" ((USItype) (n0)),                                      \
599              "1" ((USItype) (n1)),                                      \
600              "dmi" ((USItype) (d)))
601
602 #else /* not mc68020 */
603 #if !defined(__mcf5200__)
604 /* %/ inserts REGISTER_PREFIX, %# inserts IMMEDIATE_PREFIX.  */
605 #define umul_ppmm(xh, xl, a, b) \
606   __asm__ ("| Inlined umul_ppmm\n"                                      \
607 "       move%.l %2,%/d0\n"                                              \
608 "       move%.l %3,%/d1\n"                                              \
609 "       move%.l %/d0,%/d2\n"                                            \
610 "       swap    %/d0\n"                                                 \
611 "       move%.l %/d1,%/d3\n"                                            \
612 "       swap    %/d1\n"                                                 \
613 "       move%.w %/d2,%/d4\n"                                            \
614 "       mulu    %/d3,%/d4\n"                                            \
615 "       mulu    %/d1,%/d2\n"                                            \
616 "       mulu    %/d0,%/d3\n"                                            \
617 "       mulu    %/d0,%/d1\n"                                            \
618 "       move%.l %/d4,%/d0\n"                                            \
619 "       eor%.w  %/d0,%/d0\n"                                            \
620 "       swap    %/d0\n"                                                 \
621 "       add%.l  %/d0,%/d2\n"                                            \
622 "       add%.l  %/d3,%/d2\n"                                            \
623 "       jcc     1f\n"                                                   \
624 "       add%.l  %#65536,%/d1\n"                                         \
625 "1:     swap    %/d2\n"                                                 \
626 "       moveq   %#0,%/d0\n"                                             \
627 "       move%.w %/d2,%/d0\n"                                            \
628 "       move%.w %/d4,%/d2\n"                                            \
629 "       move%.l %/d2,%1\n"                                              \
630 "       add%.l  %/d1,%/d0\n"                                            \
631 "       move%.l %/d0,%0"                                                \
632            : "=g" ((USItype) (xh)),                                     \
633              "=g" ((USItype) (xl))                                      \
634            : "g" ((USItype) (a)),                                       \
635              "g" ((USItype) (b))                                        \
636            : "d0", "d1", "d2", "d3", "d4")
637 #define UMUL_TIME 100
638 #define UDIV_TIME 400
639 #endif /* not mcf5200 */
640 #endif /* not mc68020 */
641
642 /* The '020, '030, '040 and '060 have bitfield insns. */
643 #if defined (__mc68020__) || defined(mc68020) \
644         || defined(__mc68030__) || defined(mc68030) \
645         || defined(__mc68040__) || defined(mc68040) \
646         || defined(__mc68060__) || defined(mc68060) \
647         || defined(__NeXT__)
648 #define count_leading_zeros(count, x) \
649   __asm__ ("bfffo %1{%b2:%b2},%0"                                       \
650            : "=d" ((USItype) (count))                                   \
651            : "od" ((USItype) (x)), "n" (0))
652 #endif
653 #endif /* mc68000 */
654
655 #if defined (__m88000__) && W_TYPE_SIZE == 32
656 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
657   __asm__ ("addu.co %1,%r4,%r5\n"                                       \
658         "addu.ci %0,%r2,%r3"                                            \
659            : "=r" ((USItype) (sh)),                                     \
660              "=&r" ((USItype) (sl))                                     \
661            : "%rJ" ((USItype) (ah)),                                    \
662              "rJ" ((USItype) (bh)),                                     \
663              "%rJ" ((USItype) (al)),                                    \
664              "rJ" ((USItype) (bl)))
665 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
666   __asm__ ("subu.co %1,%r4,%r5\n"                                       \
667         "subu.ci %0,%r2,%r3"                                            \
668            : "=r" ((USItype) (sh)),                                     \
669              "=&r" ((USItype) (sl))                                     \
670            : "rJ" ((USItype) (ah)),                                     \
671              "rJ" ((USItype) (bh)),                                     \
672              "rJ" ((USItype) (al)),                                     \
673              "rJ" ((USItype) (bl)))
674 #define count_leading_zeros(count, x) \
675   do {                                                                  \
676     USItype __cbtmp;                                                    \
677     __asm__ ("ff1 %0,%1"                                                \
678              : "=r" (__cbtmp)                                           \
679              : "r" ((USItype) (x)));                                    \
680     (count) = __cbtmp ^ 31;                                             \
681   } while (0)
682 #define COUNT_LEADING_ZEROS_0 63 /* sic */
683 #if defined (__mc88110__)
684 #define umul_ppmm(wh, wl, u, v) \
685   do {                                                                  \
686     union {UDItype __ll;                                                \
687            struct {USItype __h, __l;} __i;                              \
688           } __xx;                                                       \
689     __asm__ ("mulu.d    %0,%1,%2"                                       \
690              : "=r" (__xx.__ll)                                         \
691              : "r" ((USItype) (u)),                                     \
692                "r" ((USItype) (v)));                                    \
693     (wh) = __xx.__i.__h;                                                \
694     (wl) = __xx.__i.__l;                                                \
695   } while (0)
696 #define udiv_qrnnd(q, r, n1, n0, d) \
697   ({union {UDItype __ll;                                                \
698            struct {USItype __h, __l;} __i;                              \
699           } __xx;                                                       \
700   USItype __q;                                                          \
701   __xx.__i.__h = (n1); __xx.__i.__l = (n0);                             \
702   __asm__ ("divu.d %0,%1,%2"                                            \
703            : "=r" (__q)                                                 \
704            : "r" (__xx.__ll),                                           \
705              "r" ((USItype) (d)));                                      \
706   (r) = (n0) - __q * (d); (q) = __q; })
707 #define UMUL_TIME 5
708 #define UDIV_TIME 25
709 #else
710 #define UMUL_TIME 17
711 #define UDIV_TIME 150
712 #endif /* __mc88110__ */
713 #endif /* __m88000__ */
714
715 #if defined (__mips__) && W_TYPE_SIZE == 32
716 #define umul_ppmm(w1, w0, u, v) \
717   __asm__ ("multu %2,%3"                                                \
718            : "=l" ((USItype) (w0)),                                     \
719              "=h" ((USItype) (w1))                                      \
720            : "d" ((USItype) (u)),                                       \
721              "d" ((USItype) (v)))
722 #define UMUL_TIME 10
723 #define UDIV_TIME 100
724 #endif /* __mips__ */
725
726 #if defined (__ns32000__) && W_TYPE_SIZE == 32
727 #define umul_ppmm(w1, w0, u, v) \
728   ({union {UDItype __ll;                                                \
729            struct {USItype __l, __h;} __i;                              \
730           } __xx;                                                       \
731   __asm__ ("meid %2,%0"                                                 \
732            : "=g" (__xx.__ll)                                           \
733            : "%0" ((USItype) (u)),                                      \
734              "g" ((USItype) (v)));                                      \
735   (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
736 #define __umulsidi3(u, v) \
737   ({UDItype __w;                                                        \
738     __asm__ ("meid %2,%0"                                               \
739              : "=g" (__w)                                               \
740              : "%0" ((USItype) (u)),                                    \
741                "g" ((USItype) (v)));                                    \
742     __w; })
743 #define udiv_qrnnd(q, r, n1, n0, d) \
744   ({union {UDItype __ll;                                                \
745            struct {USItype __l, __h;} __i;                              \
746           } __xx;                                                       \
747   __xx.__i.__h = (n1); __xx.__i.__l = (n0);                             \
748   __asm__ ("deid %2,%0"                                                 \
749            : "=g" (__xx.__ll)                                           \
750            : "0" (__xx.__ll),                                           \
751              "g" ((USItype) (d)));                                      \
752   (r) = __xx.__i.__l; (q) = __xx.__i.__h; })
753 #define count_trailing_zeros(count,x) \
754   do {
755     __asm__ ("ffsd     %2,%0"                                          \
756             : "=r" ((USItype) (count))                                 \
757             : "0" ((USItype) 0),                                       \
758               "r" ((USItype) (x)));                                    \
759   } while (0)
760 #endif /* __ns32000__ */
761
762 #if (defined (_ARCH_PPC) || defined (_IBMR2)) && W_TYPE_SIZE == 32
763 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
764   do {                                                                  \
765     if (__builtin_constant_p (bh) && (bh) == 0)                         \
766       __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{aze|addze} %0,%2"           \
767              : "=r" ((USItype) (sh)),                                   \
768                "=&r" ((USItype) (sl))                                   \
769              : "%r" ((USItype) (ah)),                                   \
770                "%r" ((USItype) (al)),                                   \
771                "rI" ((USItype) (bl)));                                  \
772     else if (__builtin_constant_p (bh) && (bh) ==~(USItype) 0)          \
773       __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{ame|addme} %0,%2"           \
774              : "=r" ((USItype) (sh)),                                   \
775                "=&r" ((USItype) (sl))                                   \
776              : "%r" ((USItype) (ah)),                                   \
777                "%r" ((USItype) (al)),                                   \
778                "rI" ((USItype) (bl)));                                  \
779     else                                                                \
780       __asm__ ("{a%I5|add%I5c} %1,%4,%5\n\t{ae|adde} %0,%2,%3"          \
781              : "=r" ((USItype) (sh)),                                   \
782                "=&r" ((USItype) (sl))                                   \
783              : "%r" ((USItype) (ah)),                                   \
784                "r" ((USItype) (bh)),                                    \
785                "%r" ((USItype) (al)),                                   \
786                "rI" ((USItype) (bl)));                                  \
787   } while (0)
788 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
789   do {                                                                  \
790     if (__builtin_constant_p (ah) && (ah) == 0)                         \
791       __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfze|subfze} %0,%2"       \
792                : "=r" ((USItype) (sh)),                                 \
793                  "=&r" ((USItype) (sl))                                 \
794                : "r" ((USItype) (bh)),                                  \
795                  "rI" ((USItype) (al)),                                 \
796                  "r" ((USItype) (bl)));                                 \
797     else if (__builtin_constant_p (ah) && (ah) ==~(USItype) 0)          \
798       __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfme|subfme} %0,%2"       \
799                : "=r" ((USItype) (sh)),                                 \
800                  "=&r" ((USItype) (sl))                                 \
801                : "r" ((USItype) (bh)),                                  \
802                  "rI" ((USItype) (al)),                                 \
803                  "r" ((USItype) (bl)));                                 \
804     else if (__builtin_constant_p (bh) && (bh) == 0)                    \
805       __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{ame|addme} %0,%2"         \
806                : "=r" ((USItype) (sh)),                                 \
807                  "=&r" ((USItype) (sl))                                 \
808                : "r" ((USItype) (ah)),                                  \
809                  "rI" ((USItype) (al)),                                 \
810                  "r" ((USItype) (bl)));                                 \
811     else if (__builtin_constant_p (bh) && (bh) ==~(USItype) 0)          \
812       __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{aze|addze} %0,%2"         \
813                : "=r" ((USItype) (sh)),                                 \
814                  "=&r" ((USItype) (sl))                                 \
815                : "r" ((USItype) (ah)),                                  \
816                  "rI" ((USItype) (al)),                                 \
817                  "r" ((USItype) (bl)));                                 \
818     else                                                                \
819       __asm__ ("{sf%I4|subf%I4c} %1,%5,%4\n\t{sfe|subfe} %0,%3,%2"      \
820                : "=r" ((USItype) (sh)),                                 \
821                  "=&r" ((USItype) (sl))                                 \
822                : "r" ((USItype) (ah)),                                  \
823                  "r" ((USItype) (bh)),                                  \
824                  "rI" ((USItype) (al)),                                 \
825                  "r" ((USItype) (bl)));                                 \
826   } while (0)
827 #define count_leading_zeros(count, x) \
828   __asm__ ("{cntlz|cntlzw} %0,%1"                                       \
829            : "=r" ((USItype) (count))                                   \
830            : "r" ((USItype) (x)))
831 #define COUNT_LEADING_ZEROS_0 32
832 #if defined (_ARCH_PPC)
833 #define umul_ppmm(ph, pl, m0, m1) \
834   do {                                                                  \
835     USItype __m0 = (m0), __m1 = (m1);                                   \
836     __asm__ ("mulhwu %0,%1,%2"                                          \
837              : "=r" ((USItype) ph)                                      \
838              : "%r" (__m0),                                             \
839                "r" (__m1));                                             \
840     (pl) = __m0 * __m1;                                                 \
841   } while (0)
842 #define UMUL_TIME 15
843 #define smul_ppmm(ph, pl, m0, m1) \
844   do {                                                                  \
845     SItype __m0 = (m0), __m1 = (m1);                                    \
846     __asm__ ("mulhw %0,%1,%2"                                           \
847              : "=r" ((SItype) ph)                                       \
848              : "%r" (__m0),                                             \
849                "r" (__m1));                                             \
850     (pl) = __m0 * __m1;                                                 \
851   } while (0)
852 #define SMUL_TIME 14
853 #define UDIV_TIME 120
854 #else
855 #define umul_ppmm(xh, xl, m0, m1) \
856   do {                                                                  \
857     USItype __m0 = (m0), __m1 = (m1);                                   \
858     __asm__ ("mul %0,%2,%3"                                             \
859              : "=r" ((USItype) (xh)),                                   \
860                "=q" ((USItype) (xl))                                    \
861              : "r" (__m0),                                              \
862                "r" (__m1));                                             \
863     (xh) += ((((SItype) __m0 >> 31) & __m1)                             \
864              + (((SItype) __m1 >> 31) & __m0));                         \
865   } while (0)
866 #define UMUL_TIME 8
867 #define smul_ppmm(xh, xl, m0, m1) \
868   __asm__ ("mul %0,%2,%3"                                               \
869            : "=r" ((SItype) (xh)),                                      \
870              "=q" ((SItype) (xl))                                       \
871            : "r" (m0),                                                  \
872              "r" (m1))
873 #define SMUL_TIME 4
874 #define sdiv_qrnnd(q, r, nh, nl, d) \
875   __asm__ ("div %0,%2,%4"                                               \
876            : "=r" ((SItype) (q)), "=q" ((SItype) (r))                   \
877            : "r" ((SItype) (nh)), "1" ((SItype) (nl)), "r" ((SItype) (d)))
878 #define UDIV_TIME 100
879 #endif
880 #endif /* Power architecture variants.  */
881
882 #if defined (__pyr__) && W_TYPE_SIZE == 32
883 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
884   __asm__ ("addw        %5,%1\n"                                        \
885         "addwc  %3,%0"                                                  \
886            : "=r" ((USItype) (sh)),                                     \
887              "=&r" ((USItype) (sl))                                     \
888            : "%0" ((USItype) (ah)),                                     \
889              "g" ((USItype) (bh)),                                      \
890              "%1" ((USItype) (al)),                                     \
891              "g" ((USItype) (bl)))
892 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
893   __asm__ ("subw        %5,%1\n"                                        \
894         "subwb  %3,%0"                                                  \
895            : "=r" ((USItype) (sh)),                                     \
896              "=&r" ((USItype) (sl))                                     \
897            : "0" ((USItype) (ah)),                                      \
898              "g" ((USItype) (bh)),                                      \
899              "1" ((USItype) (al)),                                      \
900              "g" ((USItype) (bl)))
901 /* This insn works on Pyramids with AP, XP, or MI CPUs, but not with SP.  */
902 #define umul_ppmm(w1, w0, u, v) \
903   ({union {UDItype __ll;                                                \
904            struct {USItype __h, __l;} __i;                              \
905           } __xx;                                                       \
906   __asm__ ("movw %1,%R0\n"                                              \
907         "uemul %2,%0"                                                   \
908            : "=&r" (__xx.__ll)                                          \
909            : "g" ((USItype) (u)),                                       \
910              "g" ((USItype) (v)));                                      \
911   (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
912 #endif /* __pyr__ */
913
914 #if defined (__ibm032__) /* RT/ROMP */ && W_TYPE_SIZE == 32
915 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
916   __asm__ ("a %1,%5\n"                                                  \
917         "ae %0,%3"                                                      \
918            : "=r" ((USItype) (sh)),                                     \
919              "=&r" ((USItype) (sl))                                     \
920            : "%0" ((USItype) (ah)),                                     \
921              "r" ((USItype) (bh)),                                      \
922              "%1" ((USItype) (al)),                                     \
923              "r" ((USItype) (bl)))
924 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
925   __asm__ ("s %1,%5\n"                                                  \
926         "se %0,%3"                                                      \
927            : "=r" ((USItype) (sh)),                                     \
928              "=&r" ((USItype) (sl))                                     \
929            : "0" ((USItype) (ah)),                                      \
930              "r" ((USItype) (bh)),                                      \
931              "1" ((USItype) (al)),                                      \
932              "r" ((USItype) (bl)))
933 #define umul_ppmm(ph, pl, m0, m1) \
934   do {                                                                  \
935     USItype __m0 = (m0), __m1 = (m1);                                   \
936     __asm__ (                                                           \
937         "s      r2,r2\n"                                                \
938         "mts    r10,%2\n"                                               \
939         "m      r2,%3\n"                                                \
940         "m      r2,%3\n"                                                \
941         "m      r2,%3\n"                                                \
942         "m      r2,%3\n"                                                \
943         "m      r2,%3\n"                                                \
944         "m      r2,%3\n"                                                \
945         "m      r2,%3\n"                                                \
946         "m      r2,%3\n"                                                \
947         "m      r2,%3\n"                                                \
948         "m      r2,%3\n"                                                \
949         "m      r2,%3\n"                                                \
950         "m      r2,%3\n"                                                \
951         "m      r2,%3\n"                                                \
952         "m      r2,%3\n"                                                \
953         "m      r2,%3\n"                                                \
954         "m      r2,%3\n"                                                \
955         "cas    %0,r2,r0\n"                                             \
956         "mfs    r10,%1"                                                 \
957              : "=r" ((USItype) (ph)),                                   \
958                "=r" ((USItype) (pl))                                    \
959              : "%r" (__m0),                                             \
960                 "r" (__m1)                                              \
961              : "r2");                                                   \
962     (ph) += ((((SItype) __m0 >> 31) & __m1)                             \
963              + (((SItype) __m1 >> 31) & __m0));                         \
964   } while (0)
965 #define UMUL_TIME 20
966 #define UDIV_TIME 200
967 #define count_leading_zeros(count, x) \
968   do {                                                                  \
969     if ((x) >= 0x10000)                                                 \
970       __asm__ ("clz     %0,%1"                                          \
971                : "=r" ((USItype) (count))                               \
972                : "r" ((USItype) (x) >> 16));                            \
973     else                                                                \
974       {                                                                 \
975         __asm__ ("clz   %0,%1"                                          \
976                  : "=r" ((USItype) (count))                             \
977                  : "r" ((USItype) (x)));                                        \
978         (count) += 16;                                                  \
979       }                                                                 \
980   } while (0)
981 #endif
982
983 #if defined (__sh2__) && W_TYPE_SIZE == 32
984 #define umul_ppmm(w1, w0, u, v) \
985   __asm__ (                                                             \
986         "dmulu.l        %2,%3\n"                                        \
987         "sts    macl,%1\n"                                              \
988         "sts    mach,%0"                                                \
989            : "=r" ((USItype)(w1)),                                      \
990              "=r" ((USItype)(w0))                                       \
991            : "r" ((USItype)(u)),                                        \
992              "r" ((USItype)(v))                                         \
993            : "macl", "mach")
994 #define UMUL_TIME 5
995 #endif
996
997 #if defined (__sparc__) && !defined(__arch64__) \
998     && !defined(__sparcv9) && W_TYPE_SIZE == 32
999 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1000   __asm__ ("addcc %r4,%5,%1\n"                                          \
1001         "addx %r2,%3,%0"                                                \
1002            : "=r" ((USItype) (sh)),                                     \
1003              "=&r" ((USItype) (sl))                                     \
1004            : "%rJ" ((USItype) (ah)),                                    \
1005              "rI" ((USItype) (bh)),                                     \
1006              "%rJ" ((USItype) (al)),                                    \
1007              "rI" ((USItype) (bl))                                      \
1008            __CLOBBER_CC)
1009 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1010   __asm__ ("subcc %r4,%5,%1\n"                                          \
1011         "subx %r2,%3,%0"                                                \
1012            : "=r" ((USItype) (sh)),                                     \
1013              "=&r" ((USItype) (sl))                                     \
1014            : "rJ" ((USItype) (ah)),                                     \
1015              "rI" ((USItype) (bh)),                                     \
1016              "rJ" ((USItype) (al)),                                     \
1017              "rI" ((USItype) (bl))                                      \
1018            __CLOBBER_CC)
1019 #if defined (__sparc_v8__)
1020 #define umul_ppmm(w1, w0, u, v) \
1021   __asm__ ("umul %2,%3,%1;rd %%y,%0"                                    \
1022            : "=r" ((USItype) (w1)),                                     \
1023              "=r" ((USItype) (w0))                                      \
1024            : "r" ((USItype) (u)),                                       \
1025              "r" ((USItype) (v)))
1026 #define udiv_qrnnd(q, r, n1, n0, d) \
1027   __asm__ ("mov %2,%%y;nop;nop;nop;udiv %3,%4,%0;umul %0,%4,%1;sub %3,%1,%1"\
1028            : "=&r" ((USItype) (q)),                                     \
1029              "=&r" ((USItype) (r))                                      \
1030            : "r" ((USItype) (n1)),                                      \
1031              "r" ((USItype) (n0)),                                      \
1032              "r" ((USItype) (d)))
1033 #else
1034 #if defined (__sparclite__)
1035 /* This has hardware multiply but not divide.  It also has two additional
1036    instructions scan (ffs from high bit) and divscc.  */
1037 #define umul_ppmm(w1, w0, u, v) \
1038   __asm__ ("umul %2,%3,%1;rd %%y,%0"                                    \
1039            : "=r" ((USItype) (w1)),                                     \
1040              "=r" ((USItype) (w0))                                      \
1041            : "r" ((USItype) (u)),                                       \
1042              "r" ((USItype) (v)))
1043 #define udiv_qrnnd(q, r, n1, n0, d) \
1044   __asm__ ("! Inlined udiv_qrnnd\n"                                     \
1045 "        wr     %%g0,%2,%%y     ! Not a delayed write for sparclite\n"  \
1046 "        tst    %%g0\n"                                                 \
1047 "        divscc %3,%4,%%g1\n"                                           \
1048 "        divscc %%g1,%4,%%g1\n"                                         \
1049 "        divscc %%g1,%4,%%g1\n"                                         \
1050 "        divscc %%g1,%4,%%g1\n"                                         \
1051 "        divscc %%g1,%4,%%g1\n"                                         \
1052 "        divscc %%g1,%4,%%g1\n"                                         \
1053 "        divscc %%g1,%4,%%g1\n"                                         \
1054 "        divscc %%g1,%4,%%g1\n"                                         \
1055 "        divscc %%g1,%4,%%g1\n"                                         \
1056 "        divscc %%g1,%4,%%g1\n"                                         \
1057 "        divscc %%g1,%4,%%g1\n"                                         \
1058 "        divscc %%g1,%4,%%g1\n"                                         \
1059 "        divscc %%g1,%4,%%g1\n"                                         \
1060 "        divscc %%g1,%4,%%g1\n"                                         \
1061 "        divscc %%g1,%4,%%g1\n"                                         \
1062 "        divscc %%g1,%4,%%g1\n"                                         \
1063 "        divscc %%g1,%4,%%g1\n"                                         \
1064 "        divscc %%g1,%4,%%g1\n"                                         \
1065 "        divscc %%g1,%4,%%g1\n"                                         \
1066 "        divscc %%g1,%4,%%g1\n"                                         \
1067 "        divscc %%g1,%4,%%g1\n"                                         \
1068 "        divscc %%g1,%4,%%g1\n"                                         \
1069 "        divscc %%g1,%4,%%g1\n"                                         \
1070 "        divscc %%g1,%4,%%g1\n"                                         \
1071 "        divscc %%g1,%4,%%g1\n"                                         \
1072 "        divscc %%g1,%4,%%g1\n"                                         \
1073 "        divscc %%g1,%4,%%g1\n"                                         \
1074 "        divscc %%g1,%4,%%g1\n"                                         \
1075 "        divscc %%g1,%4,%%g1\n"                                         \
1076 "        divscc %%g1,%4,%%g1\n"                                         \
1077 "        divscc %%g1,%4,%%g1\n"                                         \
1078 "        divscc %%g1,%4,%0\n"                                           \
1079 "        rd     %%y,%1\n"                                               \
1080 "        bl,a 1f\n"                                                     \
1081 "        add    %1,%4,%1\n"                                             \
1082 "1:     ! End of inline udiv_qrnnd"                                     \
1083            : "=r" ((USItype) (q)),                                      \
1084              "=r" ((USItype) (r))                                       \
1085            : "r" ((USItype) (n1)),                                      \
1086              "r" ((USItype) (n0)),                                      \
1087              "rI" ((USItype) (d))                                       \
1088            : "g1" __AND_CLOBBER_CC)
1089 #define UDIV_TIME 37
1090 #define count_leading_zeros(count, x) \
1091   do {                                                                  \
1092   __asm__ ("scan %1,1,%0"                                               \
1093            : "=r" ((USItype) (count))                                   \
1094            : "r" ((USItype) (x)));                                      \
1095   } while (0)
1096 /* Early sparclites return 63 for an argument of 0, but they warn that future
1097    implementations might change this.  Therefore, leave COUNT_LEADING_ZEROS_0
1098    undefined.  */
1099 #else
1100 /* SPARC without integer multiplication and divide instructions.
1101    (i.e. at least Sun4/20,40,60,65,75,110,260,280,330,360,380,470,490) */
1102 #define umul_ppmm(w1, w0, u, v) \
1103   __asm__ ("! Inlined umul_ppmm\n"                                      \
1104 "        wr     %%g0,%2,%%y     ! SPARC has 0-3 delay insn after a wr\n"\
1105 "        sra    %3,31,%%o5      ! Don't move this insn\n"               \
1106 "        and    %2,%%o5,%%o5    ! Don't move this insn\n"               \
1107 "        andcc  %%g0,0,%%g1     ! Don't move this insn\n"               \
1108 "        mulscc %%g1,%3,%%g1\n"                                         \
1109 "        mulscc %%g1,%3,%%g1\n"                                         \
1110 "        mulscc %%g1,%3,%%g1\n"                                         \
1111 "        mulscc %%g1,%3,%%g1\n"                                         \
1112 "        mulscc %%g1,%3,%%g1\n"                                         \
1113 "        mulscc %%g1,%3,%%g1\n"                                         \
1114 "        mulscc %%g1,%3,%%g1\n"                                         \
1115 "        mulscc %%g1,%3,%%g1\n"                                         \
1116 "        mulscc %%g1,%3,%%g1\n"                                         \
1117 "        mulscc %%g1,%3,%%g1\n"                                         \
1118 "        mulscc %%g1,%3,%%g1\n"                                         \
1119 "        mulscc %%g1,%3,%%g1\n"                                         \
1120 "        mulscc %%g1,%3,%%g1\n"                                         \
1121 "        mulscc %%g1,%3,%%g1\n"                                         \
1122 "        mulscc %%g1,%3,%%g1\n"                                         \
1123 "        mulscc %%g1,%3,%%g1\n"                                         \
1124 "        mulscc %%g1,%3,%%g1\n"                                         \
1125 "        mulscc %%g1,%3,%%g1\n"                                         \
1126 "        mulscc %%g1,%3,%%g1\n"                                         \
1127 "        mulscc %%g1,%3,%%g1\n"                                         \
1128 "        mulscc %%g1,%3,%%g1\n"                                         \
1129 "        mulscc %%g1,%3,%%g1\n"                                         \
1130 "        mulscc %%g1,%3,%%g1\n"                                         \
1131 "        mulscc %%g1,%3,%%g1\n"                                         \
1132 "        mulscc %%g1,%3,%%g1\n"                                         \
1133 "        mulscc %%g1,%3,%%g1\n"                                         \
1134 "        mulscc %%g1,%3,%%g1\n"                                         \
1135 "        mulscc %%g1,%3,%%g1\n"                                         \
1136 "        mulscc %%g1,%3,%%g1\n"                                         \
1137 "        mulscc %%g1,%3,%%g1\n"                                         \
1138 "        mulscc %%g1,%3,%%g1\n"                                         \
1139 "        mulscc %%g1,%3,%%g1\n"                                         \
1140 "        mulscc %%g1,0,%%g1\n"                                          \
1141 "        add    %%g1,%%o5,%0\n"                                         \
1142 "        rd     %%y,%1"                                                 \
1143            : "=r" ((USItype) (w1)),                                     \
1144              "=r" ((USItype) (w0))                                      \
1145            : "%rI" ((USItype) (u)),                                     \
1146              "r" ((USItype) (v))                                                \
1147            : "g1", "o5" __AND_CLOBBER_CC)
1148 #define UMUL_TIME 39            /* 39 instructions */
1149 /* It's quite necessary to add this much assembler for the sparc.
1150    The default udiv_qrnnd (in C) is more than 10 times slower!  */
1151 #define udiv_qrnnd(q, r, n1, n0, d) \
1152   __asm__ ("! Inlined udiv_qrnnd\n"                                     \
1153 "       mov     32,%%g1\n"                                              \
1154 "       subcc   %1,%2,%%g0\n"                                           \
1155 "1:     bcs     5f\n"                                                   \
1156 "       addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n"              \
1157 "       sub     %1,%2,%1        ! this kills msb of n\n"                \
1158 "       addx    %1,%1,%1        ! so this can't give carry\n"           \
1159 "       subcc   %%g1,1,%%g1\n"                                          \
1160 "2:     bne     1b\n"                                                   \
1161 "       subcc   %1,%2,%%g0\n"                                           \
1162 "       bcs     3f\n"                                                   \
1163 "       addxcc %0,%0,%0         ! shift n1n0 and a q-bit in lsb\n"      \
1164 "       b       3f\n"                                                   \
1165 "       sub     %1,%2,%1        ! this kills msb of n\n"                \
1166 "4:     sub     %1,%2,%1\n"                                             \
1167 "5:     addxcc  %1,%1,%1\n"                                             \
1168 "       bcc     2b\n"                                                   \
1169 "       subcc   %%g1,1,%%g1\n"                                          \
1170 "! Got carry from n.  Subtract next step to cancel this carry.\n"       \
1171 "       bne     4b\n"                                                   \
1172 "       addcc   %0,%0,%0        ! shift n1n0 and a 0-bit in lsb\n"      \
1173 "       sub     %1,%2,%1\n"                                             \
1174 "3:     xnor    %0,0,%0\n"                                              \
1175 "        ! End of inline udiv_qrnnd"                                    \
1176            : "=&r" ((USItype) (q)),                                     \
1177              "=&r" ((USItype) (r))                                      \
1178            : "r" ((USItype) (d)),                                       \
1179              "1" ((USItype) (n1)),                                      \
1180              "0" ((USItype) (n0)) : "g1" __AND_CLOBBER_CC)
1181 #define UDIV_TIME (3+7*32)      /* 7 instructions/iteration. 32 iterations. */
1182 #endif /* __sparclite__ */
1183 #endif /* __sparc_v8__ */
1184 #endif /* __sparc__ */
1185
1186 #if ((defined (__sparc__) && defined (__arch64__)) \
1187      || defined (__sparcv9)) && W_TYPE_SIZE == 64
1188 #define add_ssaaaa(sh, sl, ah, al, bh, bl)                              \
1189   __asm__ ("addcc %r4,%5,%1\n"                                          \
1190            "add %r2,%3,%0\n"                                            \
1191            "bcs,a,pn %%xcc, 1f\n"                                       \
1192            "add %0, 1, %0\n"                                            \
1193            "1:"                                                         \
1194            : "=r" ((UDItype)(sh)),                                      \
1195              "=&r" ((UDItype)(sl))                                      \
1196            : "%rJ" ((UDItype)(ah)),                                     \
1197              "rI" ((UDItype)(bh)),                                      \
1198              "%rJ" ((UDItype)(al)),                                     \
1199              "rI" ((UDItype)(bl))                                       \
1200            __CLOBBER_CC)
1201
1202 #define sub_ddmmss(sh, sl, ah, al, bh, bl)                              \
1203   __asm__ ("subcc %r4,%5,%1\n"                                          \
1204            "sub %r2,%3,%0\n"                                            \
1205            "bcs,a,pn %%xcc, 1f\n"                                       \
1206            "sub %0, 1, %0\n"                                            \
1207            "1:"                                                         \
1208            : "=r" ((UDItype)(sh)),                                      \
1209              "=&r" ((UDItype)(sl))                                      \
1210            : "rJ" ((UDItype)(ah)),                                      \
1211              "rI" ((UDItype)(bh)),                                      \
1212              "rJ" ((UDItype)(al)),                                      \
1213              "rI" ((UDItype)(bl))                                       \
1214            __CLOBBER_CC)
1215
1216 #define umul_ppmm(wh, wl, u, v)                                         \
1217   do {                                                                  \
1218           UDItype tmp1, tmp2, tmp3, tmp4;                               \
1219           __asm__ __volatile__ (                                        \
1220                    "srl %7,0,%3\n"                                      \
1221                    "mulx %3,%6,%1\n"                                    \
1222                    "srlx %6,32,%2\n"                                    \
1223                    "mulx %2,%3,%4\n"                                    \
1224                    "sllx %4,32,%5\n"                                    \
1225                    "srl %6,0,%3\n"                                      \
1226                    "sub %1,%5,%5\n"                                     \
1227                    "srlx %5,32,%5\n"                                    \
1228                    "addcc %4,%5,%4\n"                                   \
1229                    "srlx %7,32,%5\n"                                    \
1230                    "mulx %3,%5,%3\n"                                    \
1231                    "mulx %2,%5,%5\n"                                    \
1232                    "sethi %%hi(0x80000000),%2\n"                        \
1233                    "addcc %4,%3,%4\n"                                   \
1234                    "srlx %4,32,%4\n"                                    \
1235                    "add %2,%2,%2\n"                                     \
1236                    "movcc %%xcc,%%g0,%2\n"                              \
1237                    "addcc %5,%4,%5\n"                                   \
1238                    "sllx %3,32,%3\n"                                    \
1239                    "add %1,%3,%1\n"                                     \
1240                    "add %5,%2,%0"                                       \
1241            : "=r" ((UDItype)(wh)),                                      \
1242              "=&r" ((UDItype)(wl)),                                     \
1243              "=&r" (tmp1), "=&r" (tmp2), "=&r" (tmp3), "=&r" (tmp4)     \
1244            : "r" ((UDItype)(u)),                                        \
1245              "r" ((UDItype)(v))                                         \
1246            __CLOBBER_CC);                                               \
1247   } while (0)
1248 #define UMUL_TIME 96
1249 #define UDIV_TIME 230
1250 #endif /* sparc64 */
1251
1252 #if defined (__vax__) && W_TYPE_SIZE == 32
1253 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1254   __asm__ ("addl2 %5,%1\n"                                              \
1255         "adwc %3,%0"                                                    \
1256            : "=g" ((USItype) (sh)),                                     \
1257              "=&g" ((USItype) (sl))                                     \
1258            : "%0" ((USItype) (ah)),                                     \
1259              "g" ((USItype) (bh)),                                      \
1260              "%1" ((USItype) (al)),                                     \
1261              "g" ((USItype) (bl)))
1262 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1263   __asm__ ("subl2 %5,%1\n"                                              \
1264         "sbwc %3,%0"                                                    \
1265            : "=g" ((USItype) (sh)),                                     \
1266              "=&g" ((USItype) (sl))                                     \
1267            : "0" ((USItype) (ah)),                                      \
1268              "g" ((USItype) (bh)),                                      \
1269              "1" ((USItype) (al)),                                      \
1270              "g" ((USItype) (bl)))
1271 #define umul_ppmm(xh, xl, m0, m1) \
1272   do {                                                                  \
1273     union {                                                             \
1274         UDItype __ll;                                                   \
1275         struct {USItype __l, __h;} __i;                                 \
1276       } __xx;                                                           \
1277     USItype __m0 = (m0), __m1 = (m1);                                   \
1278     __asm__ ("emul %1,%2,$0,%0"                                         \
1279              : "=r" (__xx.__ll)                                         \
1280              : "g" (__m0),                                              \
1281                "g" (__m1));                                             \
1282     (xh) = __xx.__i.__h;                                                \
1283     (xl) = __xx.__i.__l;                                                \
1284     (xh) += ((((SItype) __m0 >> 31) & __m1)                             \
1285              + (((SItype) __m1 >> 31) & __m0));                         \
1286   } while (0)
1287 #define sdiv_qrnnd(q, r, n1, n0, d) \
1288   do {                                                                  \
1289     union {DItype __ll;                                                 \
1290            struct {SItype __l, __h;} __i;                               \
1291           } __xx;                                                       \
1292     __xx.__i.__h = n1; __xx.__i.__l = n0;                               \
1293     __asm__ ("ediv %3,%2,%0,%1"                                         \
1294              : "=g" (q), "=g" (r)                                       \
1295              : "g" (__xx.__ll), "g" (d));                               \
1296   } while (0)
1297 #endif /* __vax__ */
1298
1299 #if defined (__z8000__) && W_TYPE_SIZE == 16
1300 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1301   __asm__ ("add %H1,%H5\n\tadc  %H0,%H3"                                \
1302            : "=r" ((unsigned int)(sh)),                                 \
1303              "=&r" ((unsigned int)(sl))                                 \
1304            : "%0" ((unsigned int)(ah)),                                 \
1305              "r" ((unsigned int)(bh)),                                  \
1306              "%1" ((unsigned int)(al)),                                 \
1307              "rQR" ((unsigned int)(bl)))
1308 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1309   __asm__ ("sub %H1,%H5\n\tsbc  %H0,%H3"                                \
1310            : "=r" ((unsigned int)(sh)),                                 \
1311              "=&r" ((unsigned int)(sl))                                 \
1312            : "0" ((unsigned int)(ah)),                                  \
1313              "r" ((unsigned int)(bh)),                                  \
1314              "1" ((unsigned int)(al)),                                  \
1315              "rQR" ((unsigned int)(bl)))
1316 #define umul_ppmm(xh, xl, m0, m1) \
1317   do {                                                                  \
1318     union {long int __ll;                                               \
1319            struct {unsigned int __h, __l;} __i;                         \
1320           } __xx;                                                       \
1321     unsigned int __m0 = (m0), __m1 = (m1);                              \
1322     __asm__ ("mult      %S0,%H3"                                        \
1323              : "=r" (__xx.__i.__h),                                     \
1324                "=r" (__xx.__i.__l)                                      \
1325              : "%1" (__m0),                                             \
1326                "rQR" (__m1));                                           \
1327     (xh) = __xx.__i.__h; (xl) = __xx.__i.__l;                           \
1328     (xh) += ((((signed int) __m0 >> 15) & __m1)                         \
1329              + (((signed int) __m1 >> 15) & __m0));                     \
1330   } while (0)
1331 #endif /* __z8000__ */
1332
1333 #endif /* __GNUC__ */
1334
1335 /* If this machine has no inline assembler, use C macros.  */
1336
1337 #if !defined (add_ssaaaa)
1338 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1339   do {                                                                  \
1340     UWtype __x;                                                         \
1341     __x = (al) + (bl);                                                  \
1342     (sh) = (ah) + (bh) + (__x < (al));                                  \
1343     (sl) = __x;                                                         \
1344   } while (0)
1345 #endif
1346
1347 #if !defined (sub_ddmmss)
1348 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1349   do {                                                                  \
1350     UWtype __x;                                                         \
1351     __x = (al) - (bl);                                                  \
1352     (sh) = (ah) - (bh) - (__x > (al));                                  \
1353     (sl) = __x;                                                         \
1354   } while (0)
1355 #endif
1356
1357 #if !defined (umul_ppmm)
1358 #define umul_ppmm(w1, w0, u, v)                                         \
1359   do {                                                                  \
1360     UWtype __x0, __x1, __x2, __x3;                                      \
1361     UHWtype __ul, __vl, __uh, __vh;                                     \
1362                                                                         \
1363     __ul = __ll_lowpart (u);                                            \
1364     __uh = __ll_highpart (u);                                           \
1365     __vl = __ll_lowpart (v);                                            \
1366     __vh = __ll_highpart (v);                                           \
1367                                                                         \
1368     __x0 = (UWtype) __ul * __vl;                                        \
1369     __x1 = (UWtype) __ul * __vh;                                        \
1370     __x2 = (UWtype) __uh * __vl;                                        \
1371     __x3 = (UWtype) __uh * __vh;                                        \
1372                                                                         \
1373     __x1 += __ll_highpart (__x0);/* this can't give carry */            \
1374     __x1 += __x2;               /* but this indeed can */               \
1375     if (__x1 < __x2)            /* did we get it? */                    \
1376       __x3 += __ll_B;           /* yes, add it in the proper pos. */    \
1377                                                                         \
1378     (w1) = __x3 + __ll_highpart (__x1);                                 \
1379     (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0);          \
1380   } while (0)
1381 #endif
1382
1383 #if !defined (__umulsidi3)
1384 #define __umulsidi3(u, v) \
1385   ({DIunion __w;                                                        \
1386     umul_ppmm (__w.s.high, __w.s.low, u, v);                            \
1387     __w.ll; })
1388 #endif
1389
1390 /* Define this unconditionally, so it can be used for debugging.  */
1391 #define __udiv_qrnnd_c(q, r, n1, n0, d) \
1392   do {                                                                  \
1393     UWtype __d1, __d0, __q1, __q0;                                      \
1394     UWtype __r1, __r0, __m;                                             \
1395     __d1 = __ll_highpart (d);                                           \
1396     __d0 = __ll_lowpart (d);                                            \
1397                                                                         \
1398     __r1 = (n1) % __d1;                                                 \
1399     __q1 = (n1) / __d1;                                                 \
1400     __m = (UWtype) __q1 * __d0;                                         \
1401     __r1 = __r1 * __ll_B | __ll_highpart (n0);                          \
1402     if (__r1 < __m)                                                     \
1403       {                                                                 \
1404         __q1--, __r1 += (d);                                            \
1405         if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */\
1406           if (__r1 < __m)                                               \
1407             __q1--, __r1 += (d);                                        \
1408       }                                                                 \
1409     __r1 -= __m;                                                        \
1410                                                                         \
1411     __r0 = __r1 % __d1;                                                 \
1412     __q0 = __r1 / __d1;                                                 \
1413     __m = (UWtype) __q0 * __d0;                                         \
1414     __r0 = __r0 * __ll_B | __ll_lowpart (n0);                           \
1415     if (__r0 < __m)                                                     \
1416       {                                                                 \
1417         __q0--, __r0 += (d);                                            \
1418         if (__r0 >= (d))                                                \
1419           if (__r0 < __m)                                               \
1420             __q0--, __r0 += (d);                                        \
1421       }                                                                 \
1422     __r0 -= __m;                                                        \
1423                                                                         \
1424     (q) = (UWtype) __q1 * __ll_B | __q0;                                \
1425     (r) = __r0;                                                         \
1426   } while (0)
1427
1428 /* If the processor has no udiv_qrnnd but sdiv_qrnnd, go through
1429    __udiv_w_sdiv (defined in libgcc or elsewhere).  */
1430 #if !defined (udiv_qrnnd) && defined (sdiv_qrnnd)
1431 #define udiv_qrnnd(q, r, nh, nl, d) \
1432   do {                                                                  \
1433     USItype __r;                                                        \
1434     (q) = __udiv_w_sdiv (&__r, nh, nl, d);                              \
1435     (r) = __r;                                                          \
1436   } while (0)
1437 #endif
1438
1439 /* If udiv_qrnnd was not defined for this processor, use __udiv_qrnnd_c.  */
1440 #if !defined (udiv_qrnnd)
1441 #define UDIV_NEEDS_NORMALIZATION 1
1442 #define udiv_qrnnd __udiv_qrnnd_c
1443 #endif
1444
1445 #if !defined (count_leading_zeros)
1446 extern const UQItype __clz_tab[];
1447 #define count_leading_zeros(count, x) \
1448   do {                                                                  \
1449     UWtype __xr = (x);                                                  \
1450     UWtype __a;                                                         \
1451                                                                         \
1452     if (W_TYPE_SIZE <= 32)                                              \
1453       {                                                                 \
1454         __a = __xr < ((UWtype)1<<2*__BITS4)                             \
1455           ? (__xr < ((UWtype)1<<__BITS4) ? 0 : __BITS4)                 \
1456           : (__xr < ((UWtype)1<<3*__BITS4) ?  2*__BITS4 : 3*__BITS4);   \
1457       }                                                                 \
1458     else                                                                \
1459       {                                                                 \
1460         for (__a = W_TYPE_SIZE - 8; __a > 0; __a -= 8)                  \
1461           if (((__xr >> __a) & 0xff) != 0)                              \
1462             break;                                                      \
1463       }                                                                 \
1464                                                                         \
1465     (count) = W_TYPE_SIZE - (__clz_tab[__xr >> __a] + __a);             \
1466   } while (0)
1467 #define COUNT_LEADING_ZEROS_0 W_TYPE_SIZE
1468 #endif
1469
1470 #if !defined (count_trailing_zeros)
1471 /* Define count_trailing_zeros using count_leading_zeros.  The latter might be
1472    defined in asm, but if it is not, the C version above is good enough.  */
1473 #define count_trailing_zeros(count, x) \
1474   do {                                                                  \
1475     UWtype __ctz_x = (x);                                               \
1476     UWtype __ctz_c;                                                     \
1477     count_leading_zeros (__ctz_c, __ctz_x & -__ctz_x);                  \
1478     (count) = W_TYPE_SIZE - 1 - __ctz_c;                                \
1479   } while (0)
1480 #endif
1481
1482 #ifndef UDIV_NEEDS_NORMALIZATION
1483 #define UDIV_NEEDS_NORMALIZATION 0
1484 #endif