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longlong.h @ 659

Last change on this file since 659 was 444, checked in by satin@…, 7 years ago
add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
File size: 59.3 KB

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1	/* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
2	Copyright (C) 1991-2015 Free Software Foundation, Inc.
3
4	This file is part of the GNU C Library.
5
6	The GNU C Library is free software; you can redistribute it and/or
7	modify it under the terms of the GNU Lesser General Public
8	License as published by the Free Software Foundation; either
9	version 2.1 of the License, or (at your option) any later version.
10
11	In addition to the permissions in the GNU Lesser General Public
12	License, the Free Software Foundation gives you unlimited
13	permission to link the compiled version of this file into
14	combinations with other programs, and to distribute those
15	combinations without any restriction coming from the use of this
16	file. (The Lesser General Public License restrictions do apply in
17	other respects; for example, they cover modification of the file,
18	and distribution when not linked into a combine executable.)
19
20	The GNU C Library is distributed in the hope that it will be useful,
21	but WITHOUT ANY WARRANTY; without even the implied warranty of
22	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23	Lesser General Public License for more details.
24
25	You should have received a copy of the GNU Lesser General Public
26	License along with the GNU C Library; if not, see
27	<http://www.gnu.org/licenses/>. */
28
29	/* You have to define the following before including this file:
30
31	UWtype -- An unsigned type, default type for operations (typically a "word")
32	UHWtype -- An unsigned type, at least half the size of UWtype.
33	UDWtype -- An unsigned type, at least twice as large a UWtype
34	W_TYPE_SIZE -- size in bits of UWtype
35
36	UQItype -- Unsigned 8 bit type.
37	SItype, USItype -- Signed and unsigned 32 bit types.
38	DItype, UDItype -- Signed and unsigned 64 bit types.
39
40	On a 32 bit machine UWtype should typically be USItype;
41	on a 64 bit machine, UWtype should typically be UDItype. */
42
43	#define __BITS4 (W_TYPE_SIZE / 4)
44	#define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2))
45	#define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1))
46	#define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2))
47
48	#ifndef W_TYPE_SIZE
49	#define W_TYPE_SIZE 32
50	#define UWtype USItype
51	#define UHWtype USItype
52	#define UDWtype UDItype
53	#endif
54
55	/* Used in glibc only. */
56	#ifndef attribute_hidden
57	#define attribute_hidden
58	#endif
59
60	extern const UQItype __clz_tab[256] attribute_hidden;
61
62	/* Define auxiliary asm macros.
63
64	1) umul_ppmm(high_prod, low_prod, multiplier, multiplicand) multiplies two
65	UWtype integers MULTIPLIER and MULTIPLICAND, and generates a two UWtype
66	word product in HIGH_PROD and LOW_PROD.
67
68	2) __umulsidi3(a,b) multiplies two UWtype integers A and B, and returns a
69	UDWtype product. This is just a variant of umul_ppmm.
70
71	3) udiv_qrnnd(quotient, remainder, high_numerator, low_numerator,
72	denominator) divides a UDWtype, composed by the UWtype integers
73	HIGH_NUMERATOR and LOW_NUMERATOR, by DENOMINATOR and places the quotient
74	in QUOTIENT and the remainder in REMAINDER. HIGH_NUMERATOR must be less
75	than DENOMINATOR for correct operation. If, in addition, the most
76	significant bit of DENOMINATOR must be 1, then the pre-processor symbol
77	UDIV_NEEDS_NORMALIZATION is defined to 1.
78
79	4) sdiv_qrnnd(quotient, remainder, high_numerator, low_numerator,
80	denominator). Like udiv_qrnnd but the numbers are signed. The quotient
81	is rounded towards 0.
82
83	5) count_leading_zeros(count, x) counts the number of zero-bits from the
84	msb to the first nonzero bit in the UWtype X. This is the number of
85	steps X needs to be shifted left to set the msb. Undefined for X == 0,
86	unless the symbol COUNT_LEADING_ZEROS_0 is defined to some value.
87
88	6) count_trailing_zeros(count, x) like count_leading_zeros, but counts
89	from the least significant end.
90
91	7) add_ssaaaa(high_sum, low_sum, high_addend_1, low_addend_1,
92	high_addend_2, low_addend_2) adds two UWtype integers, composed by
93	HIGH_ADDEND_1 and LOW_ADDEND_1, and HIGH_ADDEND_2 and LOW_ADDEND_2
94	respectively. The result is placed in HIGH_SUM and LOW_SUM. Overflow
95	(i.e. carry out) is not stored anywhere, and is lost.
96
97	8) sub_ddmmss(high_difference, low_difference, high_minuend, low_minuend,
98	high_subtrahend, low_subtrahend) subtracts two two-word UWtype integers,
99	composed by HIGH_MINUEND_1 and LOW_MINUEND_1, and HIGH_SUBTRAHEND_2 and
100	LOW_SUBTRAHEND_2 respectively. The result is placed in HIGH_DIFFERENCE
101	and LOW_DIFFERENCE. Overflow (i.e. carry out) is not stored anywhere,
102	and is lost.
103
104	If any of these macros are left undefined for a particular CPU,
105	C macros are used. */
106
107	/* The CPUs come in alphabetical order below.
108
109	Please add support for more CPUs here, or improve the current support
110	for the CPUs below!
111	(E.g. WE32100, IBM360.) */
112
113	#if defined (__GNUC__) && !defined (NO_ASM)
114
115	/* We sometimes need to clobber "cc" with gcc2, but that would not be
116	understood by gcc1. Use cpp to avoid major code duplication. */
117	#if __GNUC__ < 2
118	#define __CLOBBER_CC
119	#define __AND_CLOBBER_CC
120	#else /* __GNUC__ >= 2 */
121	#define __CLOBBER_CC : "cc"
122	#define __AND_CLOBBER_CC , "cc"
123	#endif /* __GNUC__ < 2 */
124
125	#if defined (__aarch64__)
126
127	#if W_TYPE_SIZE == 32
128	#define count_leading_zeros(COUNT, X) ((COUNT) = __builtin_clz (X))
129	#define count_trailing_zeros(COUNT, X) ((COUNT) = __builtin_ctz (X))
130	#define COUNT_LEADING_ZEROS_0 32
131	#endif /* W_TYPE_SIZE == 32 */
132
133	#if W_TYPE_SIZE == 64
134	#define count_leading_zeros(COUNT, X) ((COUNT) = __builtin_clzll (X))
135	#define count_trailing_zeros(COUNT, X) ((COUNT) = __builtin_ctzll (X))
136	#define COUNT_LEADING_ZEROS_0 64
137	#endif /* W_TYPE_SIZE == 64 */
138
139	#endif /* __aarch64__ */
140
141	#if defined (__alpha) && W_TYPE_SIZE == 64
142	/* There is a bug in g++ before version 5 that
143	errors on __builtin_alpha_umulh. */
144	#if !defined(__cplusplus) \|\| __GNUC__ >= 5
145	#define umul_ppmm(ph, pl, m0, m1) \
146	do { \
147	UDItype __m0 = (m0), __m1 = (m1); \
148	(ph) = __builtin_alpha_umulh (__m0, __m1); \
149	(pl) = __m0 * __m1; \
150	} while (0)
151	#define UMUL_TIME 46
152	#endif /* !c++ */
153	#ifndef LONGLONG_STANDALONE
154	#define udiv_qrnnd(q, r, n1, n0, d) \
155	do { UDItype __r; \
156	(q) = __udiv_qrnnd (&__r, (n1), (n0), (d)); \
157	(r) = __r; \
158	} while (0)
159	extern UDItype __udiv_qrnnd (UDItype *, UDItype, UDItype, UDItype);
160	#define UDIV_TIME 220
161	#endif /* LONGLONG_STANDALONE */
162	#ifdef __alpha_cix__
163	#define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clzl (X))
164	#define count_trailing_zeros(COUNT,X) ((COUNT) = __builtin_ctzl (X))
165	#define COUNT_LEADING_ZEROS_0 64
166	#else
167	#define count_leading_zeros(COUNT,X) \
168	do { \
169	UDItype __xr = (X), __t, __a; \
170	__t = __builtin_alpha_cmpbge (0, __xr); \
171	__a = __clz_tab[__t ^ 0xff] - 1; \
172	__t = __builtin_alpha_extbl (__xr, __a); \
173	(COUNT) = 64 - (__clz_tab[__t] + __a*8); \
174	} while (0)
175	#define count_trailing_zeros(COUNT,X) \
176	do { \
177	UDItype __xr = (X), __t, __a; \
178	__t = __builtin_alpha_cmpbge (0, __xr); \
179	__t = ~__t & -~__t; \
180	__a = ((__t & 0xCC) != 0) * 2; \
181	__a += ((__t & 0xF0) != 0) * 4; \
182	__a += ((__t & 0xAA) != 0); \
183	__t = __builtin_alpha_extbl (__xr, __a); \
184	__a <<= 3; \
185	__t &= -__t; \
186	__a += ((__t & 0xCC) != 0) * 2; \
187	__a += ((__t & 0xF0) != 0) * 4; \
188	__a += ((__t & 0xAA) != 0); \
189	(COUNT) = __a; \
190	} while (0)
191	#endif /* __alpha_cix__ */
192	#endif /* __alpha */
193
194	#if defined (__arc__) && W_TYPE_SIZE == 32
195	#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
196	__asm__ ("add.f %1, %4, %5\n\tadc %0, %2, %3" \
197	: "=r" ((USItype) (sh)), \
198	"=&r" ((USItype) (sl)) \
199	: "%r" ((USItype) (ah)), \
200	"rICal" ((USItype) (bh)), \
201	"%r" ((USItype) (al)), \
202	"rICal" ((USItype) (bl)))
203	#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
204	__asm__ ("sub.f %1, %4, %5\n\tsbc %0, %2, %3" \
205	: "=r" ((USItype) (sh)), \
206	"=&r" ((USItype) (sl)) \
207	: "r" ((USItype) (ah)), \
208	"rICal" ((USItype) (bh)), \
209	"r" ((USItype) (al)), \
210	"rICal" ((USItype) (bl)))
211
212	#define __umulsidi3(u,v) ((UDItype)(USItype)u*(USItype)v)
213	#ifdef __ARC_NORM__
214	#define count_leading_zeros(count, x) \
215	do \
216	{ \
217	SItype c_; \
218	\
219	__asm__ ("norm.f\t%0,%1\n\tmov.mi\t%0,-1" : "=r" (c_) : "r" (x) : "cc");\
220	(count) = c_ + 1; \
221	} \
222	while (0)
223	#define COUNT_LEADING_ZEROS_0 32
224	#endif /* __ARC_NORM__ */
225	#endif /* __arc__ */
226
227	#if defined (__arm__) && (defined (__thumb2__) \|\| !defined (__thumb__)) \
228	&& W_TYPE_SIZE == 32
229	#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
230	__asm__ ("adds %1, %4, %5\n\tadc %0, %2, %3" \
231	: "=r" ((USItype) (sh)), \
232	"=&r" ((USItype) (sl)) \
233	: "%r" ((USItype) (ah)), \
234	"rI" ((USItype) (bh)), \
235	"%r" ((USItype) (al)), \
236	"rI" ((USItype) (bl)) __CLOBBER_CC)
237	#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
238	__asm__ ("subs %1, %4, %5\n\tsbc %0, %2, %3" \
239	: "=r" ((USItype) (sh)), \
240	"=&r" ((USItype) (sl)) \
241	: "r" ((USItype) (ah)), \
242	"rI" ((USItype) (bh)), \
243	"r" ((USItype) (al)), \
244	"rI" ((USItype) (bl)) __CLOBBER_CC)
245	# if defined(__ARM_ARCH_2__) \|\| defined(__ARM_ARCH_2A__) \
246	\|\| defined(__ARM_ARCH_3__)
247	# define umul_ppmm(xh, xl, a, b) \
248	do { \
249	register USItype __t0, __t1, __t2; \
250	__asm__ ("%@ Inlined umul_ppmm\n" \
251	" mov %2, %5, lsr #16\n" \
252	" mov %0, %6, lsr #16\n" \
253	" bic %3, %5, %2, lsl #16\n" \
254	" bic %4, %6, %0, lsl #16\n" \
255	" mul %1, %3, %4\n" \
256	" mul %4, %2, %4\n" \
257	" mul %3, %0, %3\n" \
258	" mul %0, %2, %0\n" \
259	" adds %3, %4, %3\n" \
260	" addcs %0, %0, #65536\n" \
261	" adds %1, %1, %3, lsl #16\n" \
262	" adc %0, %0, %3, lsr #16" \
263	: "=&r" ((USItype) (xh)), \
264	"=r" ((USItype) (xl)), \
265	"=&r" (__t0), "=&r" (__t1), "=r" (__t2) \
266	: "r" ((USItype) (a)), \
267	"r" ((USItype) (b)) __CLOBBER_CC ); \
268	} while (0)
269	# define UMUL_TIME 20
270	# else
271	# define umul_ppmm(xh, xl, a, b) \
272	do { \
273	/* Generate umull, under compiler control. */ \
274	register UDItype __t0 = (UDItype)(USItype)(a) * (USItype)(b); \
275	(xl) = (USItype)__t0; \
276	(xh) = (USItype)(__t0 >> 32); \
277	} while (0)
278	# define UMUL_TIME 3
279	# endif
280	# define UDIV_TIME 100
281	#endif /* __arm__ */
282
283	#if defined(__arm__)
284	/* Let gcc decide how best to implement count_leading_zeros. */
285	#define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clz (X))
286	#define count_trailing_zeros(COUNT,X) ((COUNT) = __builtin_ctz (X))
287	#define COUNT_LEADING_ZEROS_0 32
288	#endif
289
290	#if defined (__AVR__)
291
292	#if W_TYPE_SIZE == 16
293	#define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clz (X))
294	#define count_trailing_zeros(COUNT,X) ((COUNT) = __builtin_ctz (X))
295	#define COUNT_LEADING_ZEROS_0 16
296	#endif /* W_TYPE_SIZE == 16 */
297
298	#if W_TYPE_SIZE == 32
299	#define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clzl (X))
300	#define count_trailing_zeros(COUNT,X) ((COUNT) = __builtin_ctzl (X))
301	#define COUNT_LEADING_ZEROS_0 32
302	#endif /* W_TYPE_SIZE == 32 */
303
304	#if W_TYPE_SIZE == 64
305	#define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clzll (X))
306	#define count_trailing_zeros(COUNT,X) ((COUNT) = __builtin_ctzll (X))
307	#define COUNT_LEADING_ZEROS_0 64
308	#endif /* W_TYPE_SIZE == 64 */
309
310	#endif /* defined (__AVR__) */
311
312	#if defined (__CRIS__)
313
314	#if __CRIS_arch_version >= 3
315	#define count_leading_zeros(COUNT, X) ((COUNT) = __builtin_clz (X))
316	#define COUNT_LEADING_ZEROS_0 32
317	#endif /* __CRIS_arch_version >= 3 */
318
319	#if __CRIS_arch_version >= 8
320	#define count_trailing_zeros(COUNT, X) ((COUNT) = __builtin_ctz (X))
321	#endif /* __CRIS_arch_version >= 8 */
322
323	#if __CRIS_arch_version >= 10
324	#define __umulsidi3(u,v) ((UDItype)(USItype) (u) * (UDItype)(USItype) (v))
325	#else
326	#define __umulsidi3 __umulsidi3
327	extern UDItype __umulsidi3 (USItype, USItype);
328	#endif /* __CRIS_arch_version >= 10 */
329
330	#define umul_ppmm(w1, w0, u, v) \
331	do { \
332	UDItype __x = __umulsidi3 (u, v); \
333	(w0) = (USItype) (__x); \
334	(w1) = (USItype) (__x >> 32); \
335	} while (0)
336
337	/* FIXME: defining add_ssaaaa and sub_ddmmss should be advantageous for
338	DFmode ("double" intrinsics, avoiding two of the three insns handling
339	carry), but defining them as open-code C composing and doing the
340	operation in DImode (UDImode) shows that the DImode needs work:
341	register pressure from requiring neighboring registers and the
342	traffic to and from them come to dominate, in the 4.7 series. */
343
344	#endif /* defined (__CRIS__) */
345
346	#if defined (__hppa) && W_TYPE_SIZE == 32
347	#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
348	__asm__ ("add %4,%5,%1\n\taddc %2,%3,%0" \
349	: "=r" ((USItype) (sh)), \
350	"=&r" ((USItype) (sl)) \
351	: "%rM" ((USItype) (ah)), \
352	"rM" ((USItype) (bh)), \
353	"%rM" ((USItype) (al)), \
354	"rM" ((USItype) (bl)))
355	#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
356	__asm__ ("sub %4,%5,%1\n\tsubb %2,%3,%0" \
357	: "=r" ((USItype) (sh)), \
358	"=&r" ((USItype) (sl)) \
359	: "rM" ((USItype) (ah)), \
360	"rM" ((USItype) (bh)), \
361	"rM" ((USItype) (al)), \
362	"rM" ((USItype) (bl)))
363	#if defined (_PA_RISC1_1)
364	#define umul_ppmm(w1, w0, u, v) \
365	do { \
366	union \
367	{ \
368	UDItype __f; \
369	struct {USItype __w1, __w0;} __w1w0; \
370	} __t; \
371	__asm__ ("xmpyu %1,%2,%0" \
372	: "=x" (__t.__f) \
373	: "x" ((USItype) (u)), \
374	"x" ((USItype) (v))); \
375	(w1) = __t.__w1w0.__w1; \
376	(w0) = __t.__w1w0.__w0; \
377	} while (0)
378	#define UMUL_TIME 8
379	#else
380	#define UMUL_TIME 30
381	#endif
382	#define UDIV_TIME 40
383	#define count_leading_zeros(count, x) \
384	do { \
385	USItype __tmp; \
386	__asm__ ( \
387	"ldi 1,%0\n" \
388	" extru,= %1,15,16,%%r0 ; Bits 31..16 zero?\n" \
389	" extru,tr %1,15,16,%1 ; No. Shift down, skip add.\n"\
390	" ldo 16(%0),%0 ; Yes. Perform add.\n" \
391	" extru,= %1,23,8,%%r0 ; Bits 15..8 zero?\n" \
392	" extru,tr %1,23,8,%1 ; No. Shift down, skip add.\n"\
393	" ldo 8(%0),%0 ; Yes. Perform add.\n" \
394	" extru,= %1,27,4,%%r0 ; Bits 7..4 zero?\n" \
395	" extru,tr %1,27,4,%1 ; No. Shift down, skip add.\n"\
396	" ldo 4(%0),%0 ; Yes. Perform add.\n" \
397	" extru,= %1,29,2,%%r0 ; Bits 3..2 zero?\n" \
398	" extru,tr %1,29,2,%1 ; No. Shift down, skip add.\n"\
399	" ldo 2(%0),%0 ; Yes. Perform add.\n" \
400	" extru %1,30,1,%1 ; Extract bit 1.\n" \
401	" sub %0,%1,%0 ; Subtract it.\n" \
402	: "=r" (count), "=r" (__tmp) : "1" (x)); \
403	} while (0)
404	#endif
405
406	#if (defined (__i370__) \|\| defined (__s390__) \|\| defined (__mvs__)) && W_TYPE_SIZE == 32
407	#if !defined (__zarch__)
408	#define smul_ppmm(xh, xl, m0, m1) \
409	do { \
410	union {DItype __ll; \
411	struct {USItype __h, __l;} __i; \
412	} __x; \
413	__asm__ ("lr %N0,%1\n\tmr %0,%2" \
414	: "=&r" (__x.__ll) \
415	: "r" (m0), "r" (m1)); \
416	(xh) = __x.__i.__h; (xl) = __x.__i.__l; \
417	} while (0)
418	#define sdiv_qrnnd(q, r, n1, n0, d) \
419	do { \
420	union {DItype __ll; \
421	struct {USItype __h, __l;} __i; \
422	} __x; \
423	__x.__i.__h = n1; __x.__i.__l = n0; \
424	__asm__ ("dr %0,%2" \
425	: "=r" (__x.__ll) \
426	: "0" (__x.__ll), "r" (d)); \
427	(q) = __x.__i.__l; (r) = __x.__i.__h; \
428	} while (0)
429	#else
430	#define smul_ppmm(xh, xl, m0, m1) \
431	do { \
432	register SItype __r0 __asm__ ("0"); \
433	register SItype __r1 __asm__ ("1") = (m0); \
434	\
435	__asm__ ("mr\t%%r0,%3" \
436	: "=r" (__r0), "=r" (__r1) \
437	: "r" (__r1), "r" (m1)); \
438	(xh) = __r0; (xl) = __r1; \
439	} while (0)
440
441	#define sdiv_qrnnd(q, r, n1, n0, d) \
442	do { \
443	register SItype __r0 __asm__ ("0") = (n1); \
444	register SItype __r1 __asm__ ("1") = (n0); \
445	\
446	__asm__ ("dr\t%%r0,%4" \
447	: "=r" (__r0), "=r" (__r1) \
448	: "r" (__r0), "r" (__r1), "r" (d)); \
449	(q) = __r1; (r) = __r0; \
450	} while (0)
451	#endif /* __zarch__ */
452	#endif
453
454	#if (defined (__i386__) \|\| defined (__i486__)) && W_TYPE_SIZE == 32
455	#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
456	__asm__ ("add{l} {%5,%1\|%1,%5}\n\tadc{l} {%3,%0\|%0,%3}" \
457	: "=r" ((USItype) (sh)), \
458	"=&r" ((USItype) (sl)) \
459	: "%0" ((USItype) (ah)), \
460	"g" ((USItype) (bh)), \
461	"%1" ((USItype) (al)), \
462	"g" ((USItype) (bl)))
463	#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
464	__asm__ ("sub{l} {%5,%1\|%1,%5}\n\tsbb{l} {%3,%0\|%0,%3}" \
465	: "=r" ((USItype) (sh)), \
466	"=&r" ((USItype) (sl)) \
467	: "0" ((USItype) (ah)), \
468	"g" ((USItype) (bh)), \
469	"1" ((USItype) (al)), \
470	"g" ((USItype) (bl)))
471	#define umul_ppmm(w1, w0, u, v) \
472	__asm__ ("mul{l} %3" \
473	: "=a" ((USItype) (w0)), \
474	"=d" ((USItype) (w1)) \
475	: "%0" ((USItype) (u)), \
476	"rm" ((USItype) (v)))
477	#define udiv_qrnnd(q, r, n1, n0, dv) \
478	__asm__ ("div{l} %4" \
479	: "=a" ((USItype) (q)), \
480	"=d" ((USItype) (r)) \
481	: "0" ((USItype) (n0)), \
482	"1" ((USItype) (n1)), \
483	"rm" ((USItype) (dv)))
484	#define count_leading_zeros(count, x) ((count) = __builtin_clz (x))
485	#define count_trailing_zeros(count, x) ((count) = __builtin_ctz (x))
486	#define UMUL_TIME 40
487	#define UDIV_TIME 40
488	#endif /* 80x86 */
489
490	#if defined (__x86_64__) && W_TYPE_SIZE == 64
491	#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
492	__asm__ ("add{q} {%5,%1\|%1,%5}\n\tadc{q} {%3,%0\|%0,%3}" \
493	: "=r" ((UDItype) (sh)), \
494	"=&r" ((UDItype) (sl)) \
495	: "%0" ((UDItype) (ah)), \
496	"rme" ((UDItype) (bh)), \
497	"%1" ((UDItype) (al)), \
498	"rme" ((UDItype) (bl)))
499	#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
500	__asm__ ("sub{q} {%5,%1\|%1,%5}\n\tsbb{q} {%3,%0\|%0,%3}" \
501	: "=r" ((UDItype) (sh)), \
502	"=&r" ((UDItype) (sl)) \
503	: "0" ((UDItype) (ah)), \
504	"rme" ((UDItype) (bh)), \
505	"1" ((UDItype) (al)), \
506	"rme" ((UDItype) (bl)))
507	#define umul_ppmm(w1, w0, u, v) \
508	__asm__ ("mul{q} %3" \
509	: "=a" ((UDItype) (w0)), \
510	"=d" ((UDItype) (w1)) \
511	: "%0" ((UDItype) (u)), \
512	"rm" ((UDItype) (v)))
513	#define udiv_qrnnd(q, r, n1, n0, dv) \
514	__asm__ ("div{q} %4" \
515	: "=a" ((UDItype) (q)), \
516	"=d" ((UDItype) (r)) \
517	: "0" ((UDItype) (n0)), \
518	"1" ((UDItype) (n1)), \
519	"rm" ((UDItype) (dv)))
520	#define count_leading_zeros(count, x) ((count) = __builtin_clzll (x))
521	#define count_trailing_zeros(count, x) ((count) = __builtin_ctzll (x))
522	#define UMUL_TIME 40
523	#define UDIV_TIME 40
524	#endif /* x86_64 */
525
526	#if defined (__i960__) && W_TYPE_SIZE == 32
527	#define umul_ppmm(w1, w0, u, v) \
528	({union {UDItype __ll; \
529	struct {USItype __l, __h;} __i; \
530	} __xx; \
531	__asm__ ("emul %2,%1,%0" \
532	: "=d" (__xx.__ll) \
533	: "%dI" ((USItype) (u)), \
534	"dI" ((USItype) (v))); \
535	(w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
536	#define __umulsidi3(u, v) \
537	({UDItype __w; \
538	__asm__ ("emul %2,%1,%0" \
539	: "=d" (__w) \
540	: "%dI" ((USItype) (u)), \
541	"dI" ((USItype) (v))); \
542	__w; })
543	#endif /* __i960__ */
544
545	#if defined (__ia64) && W_TYPE_SIZE == 64
546	/* This form encourages gcc (pre-release 3.4 at least) to emit predicated
547	"sub r=r,r" and "sub r=r,r,1", giving a 2 cycle latency. The generic
548	code using "al<bl" arithmetically comes out making an actual 0 or 1 in a
549	register, which takes an extra cycle. */
550	#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
551	do { \
552	UWtype __x; \
553	__x = (al) - (bl); \
554	if ((al) < (bl)) \
555	(sh) = (ah) - (bh) - 1; \
556	else \
557	(sh) = (ah) - (bh); \
558	(sl) = __x; \
559	} while (0)
560
561	/* Do both product parts in assembly, since that gives better code with
562	all gcc versions. Some callers will just use the upper part, and in
563	that situation we waste an instruction, but not any cycles. */
564	#define umul_ppmm(ph, pl, m0, m1) \
565	__asm__ ("xma.hu %0 = %2, %3, f0\n\txma.l %1 = %2, %3, f0" \
566	: "=&f" (ph), "=f" (pl) \
567	: "f" (m0), "f" (m1))
568	#define count_leading_zeros(count, x) \
569	do { \
570	UWtype _x = (x), _y, _a, _c; \
571	__asm__ ("mux1 %0 = %1, @rev" : "=r" (_y) : "r" (_x)); \
572	__asm__ ("czx1.l %0 = %1" : "=r" (_a) : "r" (-_y \| _y)); \
573	_c = (_a - 1) << 3; \
574	_x >>= _c; \
575	if (_x >= 1 << 4) \
576	_x >>= 4, _c += 4; \
577	if (_x >= 1 << 2) \
578	_x >>= 2, _c += 2; \
579	_c += _x >> 1; \
580	(count) = W_TYPE_SIZE - 1 - _c; \
581	} while (0)
582	/* similar to what gcc does for __builtin_ffs, but 0 based rather than 1
583	based, and we don't need a special case for x==0 here */
584	#define count_trailing_zeros(count, x) \
585	do { \
586	UWtype __ctz_x = (x); \
587	__asm__ ("popcnt %0 = %1" \
588	: "=r" (count) \
589	: "r" ((__ctz_x-1) & ~__ctz_x)); \
590	} while (0)
591	#define UMUL_TIME 14
592	#endif
593
594	#if defined (__M32R__) && W_TYPE_SIZE == 32
595	#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
596	/* The cmp clears the condition bit. */ \
597	__asm__ ("cmp %0,%0\n\taddx %1,%5\n\taddx %0,%3" \
598	: "=r" ((USItype) (sh)), \
599	"=&r" ((USItype) (sl)) \
600	: "0" ((USItype) (ah)), \
601	"r" ((USItype) (bh)), \
602	"1" ((USItype) (al)), \
603	"r" ((USItype) (bl)) \
604	: "cbit")
605	#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
606	/* The cmp clears the condition bit. */ \
607	__asm__ ("cmp %0,%0\n\tsubx %1,%5\n\tsubx %0,%3" \
608	: "=r" ((USItype) (sh)), \
609	"=&r" ((USItype) (sl)) \
610	: "0" ((USItype) (ah)), \
611	"r" ((USItype) (bh)), \
612	"1" ((USItype) (al)), \
613	"r" ((USItype) (bl)) \
614	: "cbit")
615	#endif /* __M32R__ */
616
617	#if defined (__mc68000__) && W_TYPE_SIZE == 32
618	#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
619	__asm__ ("add%.l %5,%1\n\taddx%.l %3,%0" \
620	: "=d" ((USItype) (sh)), \
621	"=&d" ((USItype) (sl)) \
622	: "%0" ((USItype) (ah)), \
623	"d" ((USItype) (bh)), \
624	"%1" ((USItype) (al)), \
625	"g" ((USItype) (bl)))
626	#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
627	__asm__ ("sub%.l %5,%1\n\tsubx%.l %3,%0" \
628	: "=d" ((USItype) (sh)), \
629	"=&d" ((USItype) (sl)) \
630	: "0" ((USItype) (ah)), \
631	"d" ((USItype) (bh)), \
632	"1" ((USItype) (al)), \
633	"g" ((USItype) (bl)))
634
635	/* The '020, '030, '040, '060 and CPU32 have 32x32->64 and 64/32->32q-32r. */
636	#if (defined (__mc68020__) && !defined (__mc68060__))
637	#define umul_ppmm(w1, w0, u, v) \
638	__asm__ ("mulu%.l %3,%1:%0" \
639	: "=d" ((USItype) (w0)), \
640	"=d" ((USItype) (w1)) \
641	: "%0" ((USItype) (u)), \
642	"dmi" ((USItype) (v)))
643	#define UMUL_TIME 45
644	#define udiv_qrnnd(q, r, n1, n0, d) \
645	__asm__ ("divu%.l %4,%1:%0" \
646	: "=d" ((USItype) (q)), \
647	"=d" ((USItype) (r)) \
648	: "0" ((USItype) (n0)), \
649	"1" ((USItype) (n1)), \
650	"dmi" ((USItype) (d)))
651	#define UDIV_TIME 90
652	#define sdiv_qrnnd(q, r, n1, n0, d) \
653	__asm__ ("divs%.l %4,%1:%0" \
654	: "=d" ((USItype) (q)), \
655	"=d" ((USItype) (r)) \
656	: "0" ((USItype) (n0)), \
657	"1" ((USItype) (n1)), \
658	"dmi" ((USItype) (d)))
659
660	#elif defined (__mcoldfire__) /* not mc68020 */
661
662	#define umul_ppmm(xh, xl, a, b) \
663	__asm__ ("\| Inlined umul_ppmm\n" \
664	" move%.l %2,%/d0\n" \
665	" move%.l %3,%/d1\n" \
666	" move%.l %/d0,%/d2\n" \
667	" swap %/d0\n" \
668	" move%.l %/d1,%/d3\n" \
669	" swap %/d1\n" \
670	" move%.w %/d2,%/d4\n" \
671	" mulu %/d3,%/d4\n" \
672	" mulu %/d1,%/d2\n" \
673	" mulu %/d0,%/d3\n" \
674	" mulu %/d0,%/d1\n" \
675	" move%.l %/d4,%/d0\n" \
676	" clr%.w %/d0\n" \
677	" swap %/d0\n" \
678	" add%.l %/d0,%/d2\n" \
679	" add%.l %/d3,%/d2\n" \
680	" jcc 1f\n" \
681	" add%.l %#65536,%/d1\n" \
682	"1: swap %/d2\n" \
683	" moveq %#0,%/d0\n" \
684	" move%.w %/d2,%/d0\n" \
685	" move%.w %/d4,%/d2\n" \
686	" move%.l %/d2,%1\n" \
687	" add%.l %/d1,%/d0\n" \
688	" move%.l %/d0,%0" \
689	: "=g" ((USItype) (xh)), \
690	"=g" ((USItype) (xl)) \
691	: "g" ((USItype) (a)), \
692	"g" ((USItype) (b)) \
693	: "d0", "d1", "d2", "d3", "d4")
694	#define UMUL_TIME 100
695	#define UDIV_TIME 400
696	#else /* not ColdFire */
697	/* %/ inserts REGISTER_PREFIX, %# inserts IMMEDIATE_PREFIX. */
698	#define umul_ppmm(xh, xl, a, b) \
699	__asm__ ("\| Inlined umul_ppmm\n" \
700	" move%.l %2,%/d0\n" \
701	" move%.l %3,%/d1\n" \
702	" move%.l %/d0,%/d2\n" \
703	" swap %/d0\n" \
704	" move%.l %/d1,%/d3\n" \
705	" swap %/d1\n" \
706	" move%.w %/d2,%/d4\n" \
707	" mulu %/d3,%/d4\n" \
708	" mulu %/d1,%/d2\n" \
709	" mulu %/d0,%/d3\n" \
710	" mulu %/d0,%/d1\n" \
711	" move%.l %/d4,%/d0\n" \
712	" eor%.w %/d0,%/d0\n" \
713	" swap %/d0\n" \
714	" add%.l %/d0,%/d2\n" \
715	" add%.l %/d3,%/d2\n" \
716	" jcc 1f\n" \
717	" add%.l %#65536,%/d1\n" \
718	"1: swap %/d2\n" \
719	" moveq %#0,%/d0\n" \
720	" move%.w %/d2,%/d0\n" \
721	" move%.w %/d4,%/d2\n" \
722	" move%.l %/d2,%1\n" \
723	" add%.l %/d1,%/d0\n" \
724	" move%.l %/d0,%0" \
725	: "=g" ((USItype) (xh)), \
726	"=g" ((USItype) (xl)) \
727	: "g" ((USItype) (a)), \
728	"g" ((USItype) (b)) \
729	: "d0", "d1", "d2", "d3", "d4")
730	#define UMUL_TIME 100
731	#define UDIV_TIME 400
732
733	#endif /* not mc68020 */
734
735	/* The '020, '030, '040 and '060 have bitfield insns.
736	cpu32 disguises as a 68020, but lacks them. */
737	#if defined (__mc68020__) && !defined (__mcpu32__)
738	#define count_leading_zeros(count, x) \
739	__asm__ ("bfffo %1{%b2:%b2},%0" \
740	: "=d" ((USItype) (count)) \
741	: "od" ((USItype) (x)), "n" (0))
742	/* Some ColdFire architectures have a ff1 instruction supported via
743	__builtin_clz. */
744	#elif defined (__mcfisaaplus__) \|\| defined (__mcfisac__)
745	#define count_leading_zeros(count,x) ((count) = __builtin_clz (x))
746	#define COUNT_LEADING_ZEROS_0 32
747	#endif
748	#endif /* mc68000 */
749
750	#if defined (__m88000__) && W_TYPE_SIZE == 32
751	#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
752	__asm__ ("addu.co %1,%r4,%r5\n\taddu.ci %0,%r2,%r3" \
753	: "=r" ((USItype) (sh)), \
754	"=&r" ((USItype) (sl)) \
755	: "%rJ" ((USItype) (ah)), \
756	"rJ" ((USItype) (bh)), \
757	"%rJ" ((USItype) (al)), \
758	"rJ" ((USItype) (bl)))
759	#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
760	__asm__ ("subu.co %1,%r4,%r5\n\tsubu.ci %0,%r2,%r3" \
761	: "=r" ((USItype) (sh)), \
762	"=&r" ((USItype) (sl)) \
763	: "rJ" ((USItype) (ah)), \
764	"rJ" ((USItype) (bh)), \
765	"rJ" ((USItype) (al)), \
766	"rJ" ((USItype) (bl)))
767	#define count_leading_zeros(count, x) \
768	do { \
769	USItype __cbtmp; \
770	__asm__ ("ff1 %0,%1" \
771	: "=r" (__cbtmp) \
772	: "r" ((USItype) (x))); \
773	(count) = __cbtmp ^ 31; \
774	} while (0)
775	#define COUNT_LEADING_ZEROS_0 63 /* sic */
776	#if defined (__mc88110__)
777	#define umul_ppmm(wh, wl, u, v) \
778	do { \
779	union {UDItype __ll; \
780	struct {USItype __h, __l;} __i; \
781	} __xx; \
782	__asm__ ("mulu.d %0,%1,%2" \
783	: "=r" (__xx.__ll) \
784	: "r" ((USItype) (u)), \
785	"r" ((USItype) (v))); \
786	(wh) = __xx.__i.__h; \
787	(wl) = __xx.__i.__l; \
788	} while (0)
789	#define udiv_qrnnd(q, r, n1, n0, d) \
790	({union {UDItype __ll; \
791	struct {USItype __h, __l;} __i; \
792	} __xx; \
793	USItype __q; \
794	__xx.__i.__h = (n1); __xx.__i.__l = (n0); \
795	__asm__ ("divu.d %0,%1,%2" \
796	: "=r" (__q) \
797	: "r" (__xx.__ll), \
798	"r" ((USItype) (d))); \
799	(r) = (n0) - __q * (d); (q) = __q; })
800	#define UMUL_TIME 5
801	#define UDIV_TIME 25
802	#else
803	#define UMUL_TIME 17
804	#define UDIV_TIME 150
805	#endif /* __mc88110__ */
806	#endif /* __m88000__ */
807
808	#if defined (__mn10300__)
809	# if defined (__AM33__)
810	# define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clz (X))
811	# define umul_ppmm(w1, w0, u, v) \
812	asm("mulu %3,%2,%1,%0" : "=r"(w0), "=r"(w1) : "r"(u), "r"(v))
813	# define smul_ppmm(w1, w0, u, v) \
814	asm("mul %3,%2,%1,%0" : "=r"(w0), "=r"(w1) : "r"(u), "r"(v))
815	# else
816	# define umul_ppmm(w1, w0, u, v) \
817	asm("nop; nop; mulu %3,%0" : "=d"(w0), "=z"(w1) : "%0"(u), "d"(v))
818	# define smul_ppmm(w1, w0, u, v) \
819	asm("nop; nop; mul %3,%0" : "=d"(w0), "=z"(w1) : "%0"(u), "d"(v))
820	# endif
821	# define add_ssaaaa(sh, sl, ah, al, bh, bl) \
822	do { \
823	DWunion __s, __a, __b; \
824	__a.s.low = (al); __a.s.high = (ah); \
825	__b.s.low = (bl); __b.s.high = (bh); \
826	__s.ll = __a.ll + __b.ll; \
827	(sl) = __s.s.low; (sh) = __s.s.high; \
828	} while (0)
829	# define sub_ddmmss(sh, sl, ah, al, bh, bl) \
830	do { \
831	DWunion __s, __a, __b; \
832	__a.s.low = (al); __a.s.high = (ah); \
833	__b.s.low = (bl); __b.s.high = (bh); \
834	__s.ll = __a.ll - __b.ll; \
835	(sl) = __s.s.low; (sh) = __s.s.high; \
836	} while (0)
837	# define udiv_qrnnd(q, r, nh, nl, d) \
838	asm("divu %2,%0" : "=D"(q), "=z"(r) : "D"(d), "0"(nl), "1"(nh))
839	# define sdiv_qrnnd(q, r, nh, nl, d) \
840	asm("div %2,%0" : "=D"(q), "=z"(r) : "D"(d), "0"(nl), "1"(nh))
841	# define UMUL_TIME 3
842	# define UDIV_TIME 38
843	#endif
844
845	#if defined (__mips__) && W_TYPE_SIZE == 32
846	#define umul_ppmm(w1, w0, u, v) \
847	do { \
848	UDItype __x = (UDItype) (USItype) (u) * (USItype) (v); \
849	(w1) = (USItype) (__x >> 32); \
850	(w0) = (USItype) (__x); \
851	} while (0)
852	#define UMUL_TIME 10
853	#define UDIV_TIME 100
854
855	#if (__mips == 32 \|\| __mips == 64) && ! defined (__mips16)
856	#define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clz (X))
857	#define COUNT_LEADING_ZEROS_0 32
858	#endif
859	#endif /* __mips__ */
860
861	#if defined (__ns32000__) && W_TYPE_SIZE == 32
862	#define umul_ppmm(w1, w0, u, v) \
863	({union {UDItype __ll; \
864	struct {USItype __l, __h;} __i; \
865	} __xx; \
866	__asm__ ("meid %2,%0" \
867	: "=g" (__xx.__ll) \
868	: "%0" ((USItype) (u)), \
869	"g" ((USItype) (v))); \
870	(w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
871	#define __umulsidi3(u, v) \
872	({UDItype __w; \
873	__asm__ ("meid %2,%0" \
874	: "=g" (__w) \
875	: "%0" ((USItype) (u)), \
876	"g" ((USItype) (v))); \
877	__w; })
878	#define udiv_qrnnd(q, r, n1, n0, d) \
879	({union {UDItype __ll; \
880	struct {USItype __l, __h;} __i; \
881	} __xx; \
882	__xx.__i.__h = (n1); __xx.__i.__l = (n0); \
883	__asm__ ("deid %2,%0" \
884	: "=g" (__xx.__ll) \
885	: "0" (__xx.__ll), \
886	"g" ((USItype) (d))); \
887	(r) = __xx.__i.__l; (q) = __xx.__i.__h; })
888	#define count_trailing_zeros(count,x) \
889	do { \
890	__asm__ ("ffsd %2,%0" \
891	: "=r" ((USItype) (count)) \
892	: "0" ((USItype) 0), \
893	"r" ((USItype) (x))); \
894	} while (0)
895	#endif /* __ns32000__ */
896
897	/* FIXME: We should test _IBMR2 here when we add assembly support for the
898	system vendor compilers.
899	FIXME: What's needed for gcc PowerPC VxWorks? __vxworks__ is not good
900	enough, since that hits ARM and m68k too. */
901	#if (defined (_ARCH_PPC) /* AIX */ \
902	\|\| defined (__powerpc__) /* gcc */ \
903	\|\| defined (__POWERPC__) /* BEOS */ \
904	\|\| defined (__ppc__) /* Darwin */ \
905	\|\| (defined (PPC) && ! defined (CPU_FAMILY)) /* gcc 2.7.x GNU&SysV */ \
906	\|\| (defined (PPC) && defined (CPU_FAMILY) /* VxWorks */ \
907	&& CPU_FAMILY == PPC) \
908	) && W_TYPE_SIZE == 32
909	#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
910	do { \
911	if (__builtin_constant_p (bh) && (bh) == 0) \
912	__asm__ ("add%I4c %1,%3,%4\n\taddze %0,%2" \
913	: "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
914	else if (__builtin_constant_p (bh) && (bh) == ~(USItype) 0) \
915	__asm__ ("add%I4c %1,%3,%4\n\taddme %0,%2" \
916	: "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
917	else \
918	__asm__ ("add%I5c %1,%4,%5\n\tadde %0,%2,%3" \
919	: "=r" (sh), "=&r" (sl) \
920	: "%r" (ah), "r" (bh), "%r" (al), "rI" (bl)); \
921	} while (0)
922	#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
923	do { \
924	if (__builtin_constant_p (ah) && (ah) == 0) \
925	__asm__ ("subf%I3c %1,%4,%3\n\tsubfze %0,%2" \
926	: "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
927	else if (__builtin_constant_p (ah) && (ah) == ~(USItype) 0) \
928	__asm__ ("subf%I3c %1,%4,%3\n\tsubfme %0,%2" \
929	: "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
930	else if (__builtin_constant_p (bh) && (bh) == 0) \
931	__asm__ ("subf%I3c %1,%4,%3\n\taddme %0,%2" \
932	: "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
933	else if (__builtin_constant_p (bh) && (bh) == ~(USItype) 0) \
934	__asm__ ("subf%I3c %1,%4,%3\n\taddze %0,%2" \
935	: "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
936	else \
937	__asm__ ("subf%I4c %1,%5,%4\n\tsubfe %0,%3,%2" \
938	: "=r" (sh), "=&r" (sl) \
939	: "r" (ah), "r" (bh), "rI" (al), "r" (bl)); \
940	} while (0)
941	#define count_leading_zeros(count, x) \
942	__asm__ ("cntlzw %0,%1" : "=r" (count) : "r" (x))
943	#define COUNT_LEADING_ZEROS_0 32
944	#if defined (_ARCH_PPC) \|\| defined (__powerpc__) \|\| defined (__POWERPC__) \
945	\|\| defined (__ppc__) \
946	\|\| (defined (PPC) && ! defined (CPU_FAMILY)) /* gcc 2.7.x GNU&SysV */ \
947	\|\| (defined (PPC) && defined (CPU_FAMILY) /* VxWorks */ \
948	&& CPU_FAMILY == PPC)
949	#define umul_ppmm(ph, pl, m0, m1) \
950	do { \
951	USItype __m0 = (m0), __m1 = (m1); \
952	__asm__ ("mulhwu %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
953	(pl) = __m0 * __m1; \
954	} while (0)
955	#define UMUL_TIME 15
956	#define smul_ppmm(ph, pl, m0, m1) \
957	do { \
958	SItype __m0 = (m0), __m1 = (m1); \
959	__asm__ ("mulhw %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
960	(pl) = __m0 * __m1; \
961	} while (0)
962	#define SMUL_TIME 14
963	#define UDIV_TIME 120
964	#endif
965	#endif /* 32-bit POWER architecture variants. */
966
967	/* We should test _IBMR2 here when we add assembly support for the system
968	vendor compilers. */
969	#if (defined (_ARCH_PPC64) \|\| defined (__powerpc64__)) && W_TYPE_SIZE == 64
970	#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
971	do { \
972	if (__builtin_constant_p (bh) && (bh) == 0) \
973	__asm__ ("add%I4c %1,%3,%4\n\taddze %0,%2" \
974	: "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
975	else if (__builtin_constant_p (bh) && (bh) == ~(UDItype) 0) \
976	__asm__ ("add%I4c %1,%3,%4\n\taddme %0,%2" \
977	: "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
978	else \
979	__asm__ ("add%I5c %1,%4,%5\n\tadde %0,%2,%3" \
980	: "=r" (sh), "=&r" (sl) \
981	: "%r" (ah), "r" (bh), "%r" (al), "rI" (bl)); \
982	} while (0)
983	#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
984	do { \
985	if (__builtin_constant_p (ah) && (ah) == 0) \
986	__asm__ ("subf%I3c %1,%4,%3\n\tsubfze %0,%2" \
987	: "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
988	else if (__builtin_constant_p (ah) && (ah) == ~(UDItype) 0) \
989	__asm__ ("subf%I3c %1,%4,%3\n\tsubfme %0,%2" \
990	: "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
991	else if (__builtin_constant_p (bh) && (bh) == 0) \
992	__asm__ ("subf%I3c %1,%4,%3\n\taddme %0,%2" \
993	: "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
994	else if (__builtin_constant_p (bh) && (bh) == ~(UDItype) 0) \
995	__asm__ ("subf%I3c %1,%4,%3\n\taddze %0,%2" \
996	: "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
997	else \
998	__asm__ ("subf%I4c %1,%5,%4\n\tsubfe %0,%3,%2" \
999	: "=r" (sh), "=&r" (sl) \
1000	: "r" (ah), "r" (bh), "rI" (al), "r" (bl)); \
1001	} while (0)
1002	#define count_leading_zeros(count, x) \
1003	__asm__ ("cntlzd %0,%1" : "=r" (count) : "r" (x))
1004	#define COUNT_LEADING_ZEROS_0 64
1005	#define umul_ppmm(ph, pl, m0, m1) \
1006	do { \
1007	UDItype __m0 = (m0), __m1 = (m1); \
1008	__asm__ ("mulhdu %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
1009	(pl) = __m0 * __m1; \
1010	} while (0)
1011	#define UMUL_TIME 15
1012	#define smul_ppmm(ph, pl, m0, m1) \
1013	do { \
1014	DItype __m0 = (m0), __m1 = (m1); \
1015	__asm__ ("mulhd %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
1016	(pl) = __m0 * __m1; \
1017	} while (0)
1018	#define SMUL_TIME 14 /* ??? */
1019	#define UDIV_TIME 120 /* ??? */
1020	#endif /* 64-bit PowerPC. */
1021
1022	#if defined (__ibm032__) /* RT/ROMP */ && W_TYPE_SIZE == 32
1023	#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1024	__asm__ ("a %1,%5\n\tae %0,%3" \
1025	: "=r" ((USItype) (sh)), \
1026	"=&r" ((USItype) (sl)) \
1027	: "%0" ((USItype) (ah)), \
1028	"r" ((USItype) (bh)), \
1029	"%1" ((USItype) (al)), \
1030	"r" ((USItype) (bl)))
1031	#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1032	__asm__ ("s %1,%5\n\tse %0,%3" \
1033	: "=r" ((USItype) (sh)), \
1034	"=&r" ((USItype) (sl)) \
1035	: "0" ((USItype) (ah)), \
1036	"r" ((USItype) (bh)), \
1037	"1" ((USItype) (al)), \
1038	"r" ((USItype) (bl)))
1039	#define umul_ppmm(ph, pl, m0, m1) \
1040	do { \
1041	USItype __m0 = (m0), __m1 = (m1); \
1042	__asm__ ( \
1043	"s r2,r2\n" \
1044	" mts r10,%2\n" \
1045	" m r2,%3\n" \
1046	" m r2,%3\n" \
1047	" m r2,%3\n" \
1048	" m r2,%3\n" \
1049	" m r2,%3\n" \
1050	" m r2,%3\n" \
1051	" m r2,%3\n" \
1052	" m r2,%3\n" \
1053	" m r2,%3\n" \
1054	" m r2,%3\n" \
1055	" m r2,%3\n" \
1056	" m r2,%3\n" \
1057	" m r2,%3\n" \
1058	" m r2,%3\n" \
1059	" m r2,%3\n" \
1060	" m r2,%3\n" \
1061	" cas %0,r2,r0\n" \
1062	" mfs r10,%1" \
1063	: "=r" ((USItype) (ph)), \
1064	"=r" ((USItype) (pl)) \
1065	: "%r" (__m0), \
1066	"r" (__m1) \
1067	: "r2"); \
1068	(ph) += ((((SItype) __m0 >> 31) & __m1) \
1069	+ (((SItype) __m1 >> 31) & __m0)); \
1070	} while (0)
1071	#define UMUL_TIME 20
1072	#define UDIV_TIME 200
1073	#define count_leading_zeros(count, x) \
1074	do { \
1075	if ((x) >= 0x10000) \
1076	__asm__ ("clz %0,%1" \
1077	: "=r" ((USItype) (count)) \
1078	: "r" ((USItype) (x) >> 16)); \
1079	else \
1080	{ \
1081	__asm__ ("clz %0,%1" \
1082	: "=r" ((USItype) (count)) \
1083	: "r" ((USItype) (x))); \
1084	(count) += 16; \
1085	} \
1086	} while (0)
1087	#endif
1088
1089	#if defined(__sh__) && W_TYPE_SIZE == 32
1090	#ifndef __sh1__
1091	#define umul_ppmm(w1, w0, u, v) \
1092	__asm__ ( \
1093	"dmulu.l %2,%3\n\tsts%M1 macl,%1\n\tsts%M0 mach,%0" \
1094	: "=r<" ((USItype)(w1)), \
1095	"=r<" ((USItype)(w0)) \
1096	: "r" ((USItype)(u)), \
1097	"r" ((USItype)(v)) \
1098	: "macl", "mach")
1099	#define UMUL_TIME 5
1100	#endif
1101
1102	/* This is the same algorithm as __udiv_qrnnd_c. */
1103	#define UDIV_NEEDS_NORMALIZATION 1
1104
1105	#ifdef __FDPIC__
1106	/* FDPIC needs a special version of the asm fragment to extract the
1107	code address from the function descriptor. __udiv_qrnnd_16 is
1108	assumed to be local and not to use the GOT, so loading r12 is
1109	not needed. */
1110	#define udiv_qrnnd(q, r, n1, n0, d) \
1111	do { \
1112	extern UWtype __udiv_qrnnd_16 (UWtype, UWtype) \
1113	__attribute__ ((visibility ("hidden"))); \
1114	/* r0: rn r1: qn / / r0: n1 r4: n0 r5: d r6: d1 / / r2: __m */ \
1115	__asm__ ( \
1116	"mov%M4 %4,r5\n" \
1117	" swap.w %3,r4\n" \
1118	" swap.w r5,r6\n" \
1119	" mov.l @%5,r2\n" \
1120	" jsr @r2\n" \
1121	" shll16 r6\n" \
1122	" swap.w r4,r4\n" \
1123	" mov.l @%5,r2\n" \
1124	" jsr @r2\n" \
1125	" swap.w r1,%0\n" \
1126	" or r1,%0" \
1127	: "=r" (q), "=&z" (r) \
1128	: "1" (n1), "r" (n0), "rm" (d), "r" (&__udiv_qrnnd_16) \
1129	: "r1", "r2", "r4", "r5", "r6", "pr", "t"); \
1130	} while (0)
1131	#else
1132	#define udiv_qrnnd(q, r, n1, n0, d) \
1133	do { \
1134	extern UWtype __udiv_qrnnd_16 (UWtype, UWtype) \
1135	__attribute__ ((visibility ("hidden"))); \
1136	/* r0: rn r1: qn / / r0: n1 r4: n0 r5: d r6: d1 / / r2: __m */ \
1137	__asm__ ( \
1138	"mov%M4 %4,r5\n" \
1139	" swap.w %3,r4\n" \
1140	" swap.w r5,r6\n" \
1141	" jsr @%5\n" \
1142	" shll16 r6\n" \
1143	" swap.w r4,r4\n" \
1144	" jsr @%5\n" \
1145	" swap.w r1,%0\n" \
1146	" or r1,%0" \
1147	: "=r" (q), "=&z" (r) \
1148	: "1" (n1), "r" (n0), "rm" (d), "r" (&__udiv_qrnnd_16) \
1149	: "r1", "r2", "r4", "r5", "r6", "pr", "t"); \
1150	} while (0)
1151	#endif /* __FDPIC__ */
1152
1153	#define UDIV_TIME 80
1154
1155	#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1156	__asm__ ("clrt;subc %5,%1; subc %4,%0" \
1157	: "=r" (sh), "=r" (sl) \
1158	: "0" (ah), "1" (al), "r" (bh), "r" (bl) : "t")
1159
1160	#endif /* __sh__ */
1161
1162	#if defined (__sparc__) && !defined (__arch64__) && !defined (__sparcv9) \
1163	&& W_TYPE_SIZE == 32
1164	#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1165	__asm__ ("addcc %r4,%5,%1\n\taddx %r2,%3,%0" \
1166	: "=r" ((USItype) (sh)), \
1167	"=&r" ((USItype) (sl)) \
1168	: "%rJ" ((USItype) (ah)), \
1169	"rI" ((USItype) (bh)), \
1170	"%rJ" ((USItype) (al)), \
1171	"rI" ((USItype) (bl)) \
1172	__CLOBBER_CC)
1173	#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1174	__asm__ ("subcc %r4,%5,%1\n\tsubx %r2,%3,%0" \
1175	: "=r" ((USItype) (sh)), \
1176	"=&r" ((USItype) (sl)) \
1177	: "rJ" ((USItype) (ah)), \
1178	"rI" ((USItype) (bh)), \
1179	"rJ" ((USItype) (al)), \
1180	"rI" ((USItype) (bl)) \
1181	__CLOBBER_CC)
1182	#if defined (__sparc_v9__)
1183	#define umul_ppmm(w1, w0, u, v) \
1184	do { \
1185	register USItype __g1 asm ("g1"); \
1186	__asm__ ("umul\t%2,%3,%1\n\t" \
1187	"srlx\t%1, 32, %0" \
1188	: "=r" ((USItype) (w1)), \
1189	"=r" (__g1) \
1190	: "r" ((USItype) (u)), \
1191	"r" ((USItype) (v))); \
1192	(w0) = __g1; \
1193	} while (0)
1194	#define udiv_qrnnd(__q, __r, __n1, __n0, __d) \
1195	__asm__ ("mov\t%2,%%y\n\t" \
1196	"udiv\t%3,%4,%0\n\t" \
1197	"umul\t%0,%4,%1\n\t" \
1198	"sub\t%3,%1,%1" \
1199	: "=&r" ((USItype) (__q)), \
1200	"=&r" ((USItype) (__r)) \
1201	: "r" ((USItype) (__n1)), \
1202	"r" ((USItype) (__n0)), \
1203	"r" ((USItype) (__d)))
1204	#else
1205	#if defined (__sparc_v8__)
1206	#define umul_ppmm(w1, w0, u, v) \
1207	__asm__ ("umul %2,%3,%1;rd %%y,%0" \
1208	: "=r" ((USItype) (w1)), \
1209	"=r" ((USItype) (w0)) \
1210	: "r" ((USItype) (u)), \
1211	"r" ((USItype) (v)))
1212	#define udiv_qrnnd(__q, __r, __n1, __n0, __d) \
1213	__asm__ ("mov %2,%%y;nop;nop;nop;udiv %3,%4,%0;umul %0,%4,%1;sub %3,%1,%1"\
1214	: "=&r" ((USItype) (__q)), \
1215	"=&r" ((USItype) (__r)) \
1216	: "r" ((USItype) (__n1)), \
1217	"r" ((USItype) (__n0)), \
1218	"r" ((USItype) (__d)))
1219	#else
1220	#if defined (__sparclite__)
1221	/* This has hardware multiply but not divide. It also has two additional
1222	instructions scan (ffs from high bit) and divscc. */
1223	#define umul_ppmm(w1, w0, u, v) \
1224	__asm__ ("umul %2,%3,%1;rd %%y,%0" \
1225	: "=r" ((USItype) (w1)), \
1226	"=r" ((USItype) (w0)) \
1227	: "r" ((USItype) (u)), \
1228	"r" ((USItype) (v)))
1229	#define udiv_qrnnd(q, r, n1, n0, d) \
1230	__asm__ ("! Inlined udiv_qrnnd\n" \
1231	" wr %%g0,%2,%%y ! Not a delayed write for sparclite\n" \
1232	" tst %%g0\n" \
1233	" divscc %3,%4,%%g1\n" \
1234	" divscc %%g1,%4,%%g1\n" \
1235	" divscc %%g1,%4,%%g1\n" \
1236	" divscc %%g1,%4,%%g1\n" \
1237	" divscc %%g1,%4,%%g1\n" \
1238	" divscc %%g1,%4,%%g1\n" \
1239	" divscc %%g1,%4,%%g1\n" \
1240	" divscc %%g1,%4,%%g1\n" \
1241	" divscc %%g1,%4,%%g1\n" \
1242	" divscc %%g1,%4,%%g1\n" \
1243	" divscc %%g1,%4,%%g1\n" \
1244	" divscc %%g1,%4,%%g1\n" \
1245	" divscc %%g1,%4,%%g1\n" \
1246	" divscc %%g1,%4,%%g1\n" \
1247	" divscc %%g1,%4,%%g1\n" \
1248	" divscc %%g1,%4,%%g1\n" \
1249	" divscc %%g1,%4,%%g1\n" \
1250	" divscc %%g1,%4,%%g1\n" \
1251	" divscc %%g1,%4,%%g1\n" \
1252	" divscc %%g1,%4,%%g1\n" \
1253	" divscc %%g1,%4,%%g1\n" \
1254	" divscc %%g1,%4,%%g1\n" \
1255	" divscc %%g1,%4,%%g1\n" \
1256	" divscc %%g1,%4,%%g1\n" \
1257	" divscc %%g1,%4,%%g1\n" \
1258	" divscc %%g1,%4,%%g1\n" \
1259	" divscc %%g1,%4,%%g1\n" \
1260	" divscc %%g1,%4,%%g1\n" \
1261	" divscc %%g1,%4,%%g1\n" \
1262	" divscc %%g1,%4,%%g1\n" \
1263	" divscc %%g1,%4,%%g1\n" \
1264	" divscc %%g1,%4,%0\n" \
1265	" rd %%y,%1\n" \
1266	" bl,a 1f\n" \
1267	" add %1,%4,%1\n" \
1268	"1: ! End of inline udiv_qrnnd" \
1269	: "=r" ((USItype) (q)), \
1270	"=r" ((USItype) (r)) \
1271	: "r" ((USItype) (n1)), \
1272	"r" ((USItype) (n0)), \
1273	"rI" ((USItype) (d)) \
1274	: "g1" __AND_CLOBBER_CC)
1275	#define UDIV_TIME 37
1276	#define count_leading_zeros(count, x) \
1277	do { \
1278	__asm__ ("scan %1,1,%0" \
1279	: "=r" ((USItype) (count)) \
1280	: "r" ((USItype) (x))); \
1281	} while (0)
1282	/* Early sparclites return 63 for an argument of 0, but they warn that future
1283	implementations might change this. Therefore, leave COUNT_LEADING_ZEROS_0
1284	undefined. */
1285	#else
1286	/* SPARC without integer multiplication and divide instructions.
1287	(i.e. at least Sun4/20,40,60,65,75,110,260,280,330,360,380,470,490) */
1288	#define umul_ppmm(w1, w0, u, v) \
1289	__asm__ ("! Inlined umul_ppmm\n" \
1290	" wr %%g0,%2,%%y ! SPARC has 0-3 delay insn after a wr\n"\
1291	" sra %3,31,%%o5 ! Don't move this insn\n" \
1292	" and %2,%%o5,%%o5 ! Don't move this insn\n" \
1293	" andcc %%g0,0,%%g1 ! Don't move this insn\n" \
1294	" mulscc %%g1,%3,%%g1\n" \
1295	" mulscc %%g1,%3,%%g1\n" \
1296	" mulscc %%g1,%3,%%g1\n" \
1297	" mulscc %%g1,%3,%%g1\n" \
1298	" mulscc %%g1,%3,%%g1\n" \
1299	" mulscc %%g1,%3,%%g1\n" \
1300	" mulscc %%g1,%3,%%g1\n" \
1301	" mulscc %%g1,%3,%%g1\n" \
1302	" mulscc %%g1,%3,%%g1\n" \
1303	" mulscc %%g1,%3,%%g1\n" \
1304	" mulscc %%g1,%3,%%g1\n" \
1305	" mulscc %%g1,%3,%%g1\n" \
1306	" mulscc %%g1,%3,%%g1\n" \
1307	" mulscc %%g1,%3,%%g1\n" \
1308	" mulscc %%g1,%3,%%g1\n" \
1309	" mulscc %%g1,%3,%%g1\n" \
1310	" mulscc %%g1,%3,%%g1\n" \
1311	" mulscc %%g1,%3,%%g1\n" \
1312	" mulscc %%g1,%3,%%g1\n" \
1313	" mulscc %%g1,%3,%%g1\n" \
1314	" mulscc %%g1,%3,%%g1\n" \
1315	" mulscc %%g1,%3,%%g1\n" \
1316	" mulscc %%g1,%3,%%g1\n" \
1317	" mulscc %%g1,%3,%%g1\n" \
1318	" mulscc %%g1,%3,%%g1\n" \
1319	" mulscc %%g1,%3,%%g1\n" \
1320	" mulscc %%g1,%3,%%g1\n" \
1321	" mulscc %%g1,%3,%%g1\n" \
1322	" mulscc %%g1,%3,%%g1\n" \
1323	" mulscc %%g1,%3,%%g1\n" \
1324	" mulscc %%g1,%3,%%g1\n" \
1325	" mulscc %%g1,%3,%%g1\n" \
1326	" mulscc %%g1,0,%%g1\n" \
1327	" add %%g1,%%o5,%0\n" \
1328	" rd %%y,%1" \
1329	: "=r" ((USItype) (w1)), \
1330	"=r" ((USItype) (w0)) \
1331	: "%rI" ((USItype) (u)), \
1332	"r" ((USItype) (v)) \
1333	: "g1", "o5" __AND_CLOBBER_CC)
1334	#define UMUL_TIME 39 /* 39 instructions */
1335	/* It's quite necessary to add this much assembler for the sparc.
1336	The default udiv_qrnnd (in C) is more than 10 times slower! */
1337	#define udiv_qrnnd(__q, __r, __n1, __n0, __d) \
1338	__asm__ ("! Inlined udiv_qrnnd\n" \
1339	" mov 32,%%g1\n" \
1340	" subcc %1,%2,%%g0\n" \
1341	"1: bcs 5f\n" \
1342	" addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n" \
1343	" sub %1,%2,%1 ! this kills msb of n\n" \
1344	" addx %1,%1,%1 ! so this can't give carry\n" \
1345	" subcc %%g1,1,%%g1\n" \
1346	"2: bne 1b\n" \
1347	" subcc %1,%2,%%g0\n" \
1348	" bcs 3f\n" \
1349	" addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n" \
1350	" b 3f\n" \
1351	" sub %1,%2,%1 ! this kills msb of n\n" \
1352	"4: sub %1,%2,%1\n" \
1353	"5: addxcc %1,%1,%1\n" \
1354	" bcc 2b\n" \
1355	" subcc %%g1,1,%%g1\n" \
1356	"! Got carry from n. Subtract next step to cancel this carry.\n" \
1357	" bne 4b\n" \
1358	" addcc %0,%0,%0 ! shift n1n0 and a 0-bit in lsb\n" \
1359	" sub %1,%2,%1\n" \
1360	"3: xnor %0,0,%0\n" \
1361	" ! End of inline udiv_qrnnd" \
1362	: "=&r" ((USItype) (__q)), \
1363	"=&r" ((USItype) (__r)) \
1364	: "r" ((USItype) (__d)), \
1365	"1" ((USItype) (__n1)), \
1366	"0" ((USItype) (__n0)) : "g1" __AND_CLOBBER_CC)
1367	#define UDIV_TIME (3+732) / 7 instructions/iteration. 32 iterations. */
1368	#endif /* __sparclite__ */
1369	#endif /* __sparc_v8__ */
1370	#endif /* __sparc_v9__ */
1371	#endif /* sparc32 */
1372
1373	#if ((defined (__sparc__) && defined (__arch64__)) \|\| defined (__sparcv9)) \
1374	&& W_TYPE_SIZE == 64
1375	#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1376	do { \
1377	UDItype __carry = 0; \
1378	__asm__ ("addcc\t%r5,%6,%1\n\t" \
1379	"add\t%r3,%4,%0\n\t" \
1380	"movcs\t%%xcc, 1, %2\n\t" \
1381	"add\t%0, %2, %0" \
1382	: "=r" ((UDItype)(sh)), \
1383	"=&r" ((UDItype)(sl)), \
1384	"+r" (__carry) \
1385	: "%rJ" ((UDItype)(ah)), \
1386	"rI" ((UDItype)(bh)), \
1387	"%rJ" ((UDItype)(al)), \
1388	"rI" ((UDItype)(bl)) \
1389	__CLOBBER_CC); \
1390	} while (0)
1391
1392	#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1393	do { \
1394	UDItype __carry = 0; \
1395	__asm__ ("subcc\t%r5,%6,%1\n\t" \
1396	"sub\t%r3,%4,%0\n\t" \
1397	"movcs\t%%xcc, 1, %2\n\t" \
1398	"sub\t%0, %2, %0" \
1399	: "=r" ((UDItype)(sh)), \
1400	"=&r" ((UDItype)(sl)), \
1401	"+r" (__carry) \
1402	: "%rJ" ((UDItype)(ah)), \
1403	"rI" ((UDItype)(bh)), \
1404	"%rJ" ((UDItype)(al)), \
1405	"rI" ((UDItype)(bl)) \
1406	__CLOBBER_CC); \
1407	} while (0)
1408
1409	#define umul_ppmm(wh, wl, u, v) \
1410	do { \
1411	UDItype tmp1, tmp2, tmp3, tmp4; \
1412	__asm__ __volatile__ ( \
1413	"srl %7,0,%3\n\t" \
1414	"mulx %3,%6,%1\n\t" \
1415	"srlx %6,32,%2\n\t" \
1416	"mulx %2,%3,%4\n\t" \
1417	"sllx %4,32,%5\n\t" \
1418	"srl %6,0,%3\n\t" \
1419	"sub %1,%5,%5\n\t" \
1420	"srlx %5,32,%5\n\t" \
1421	"addcc %4,%5,%4\n\t" \
1422	"srlx %7,32,%5\n\t" \
1423	"mulx %3,%5,%3\n\t" \
1424	"mulx %2,%5,%5\n\t" \
1425	"sethi %%hi(0x80000000),%2\n\t" \
1426	"addcc %4,%3,%4\n\t" \
1427	"srlx %4,32,%4\n\t" \
1428	"add %2,%2,%2\n\t" \
1429	"movcc %%xcc,%%g0,%2\n\t" \
1430	"addcc %5,%4,%5\n\t" \
1431	"sllx %3,32,%3\n\t" \
1432	"add %1,%3,%1\n\t" \
1433	"add %5,%2,%0" \
1434	: "=r" ((UDItype)(wh)), \
1435	"=&r" ((UDItype)(wl)), \
1436	"=&r" (tmp1), "=&r" (tmp2), "=&r" (tmp3), "=&r" (tmp4) \
1437	: "r" ((UDItype)(u)), \
1438	"r" ((UDItype)(v)) \
1439	__CLOBBER_CC); \
1440	} while (0)
1441	#define UMUL_TIME 96
1442	#define UDIV_TIME 230
1443	#endif /* sparc64 */
1444
1445	#if defined (__vax__) && W_TYPE_SIZE == 32
1446	#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1447	__asm__ ("addl2 %5,%1\n\tadwc %3,%0" \
1448	: "=g" ((USItype) (sh)), \
1449	"=&g" ((USItype) (sl)) \
1450	: "%0" ((USItype) (ah)), \
1451	"g" ((USItype) (bh)), \
1452	"%1" ((USItype) (al)), \
1453	"g" ((USItype) (bl)))
1454	#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1455	__asm__ ("subl2 %5,%1\n\tsbwc %3,%0" \
1456	: "=g" ((USItype) (sh)), \
1457	"=&g" ((USItype) (sl)) \
1458	: "0" ((USItype) (ah)), \
1459	"g" ((USItype) (bh)), \
1460	"1" ((USItype) (al)), \
1461	"g" ((USItype) (bl)))
1462	#define umul_ppmm(xh, xl, m0, m1) \
1463	do { \
1464	union { \
1465	UDItype __ll; \
1466	struct {USItype __l, __h;} __i; \
1467	} __xx; \
1468	USItype __m0 = (m0), __m1 = (m1); \
1469	__asm__ ("emul %1,%2,$0,%0" \
1470	: "=r" (__xx.__ll) \
1471	: "g" (__m0), \
1472	"g" (__m1)); \
1473	(xh) = __xx.__i.__h; \
1474	(xl) = __xx.__i.__l; \
1475	(xh) += ((((SItype) __m0 >> 31) & __m1) \
1476	+ (((SItype) __m1 >> 31) & __m0)); \
1477	} while (0)
1478	#define sdiv_qrnnd(q, r, n1, n0, d) \
1479	do { \
1480	union {DItype __ll; \
1481	struct {SItype __l, __h;} __i; \
1482	} __xx; \
1483	__xx.__i.__h = n1; __xx.__i.__l = n0; \
1484	__asm__ ("ediv %3,%2,%0,%1" \
1485	: "=g" (q), "=g" (r) \
1486	: "g" (__xx.__ll), "g" (d)); \
1487	} while (0)
1488	#endif /* __vax__ */
1489
1490	#ifdef _TMS320C6X
1491	#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1492	do \
1493	{ \
1494	UDItype __ll; \
1495	__asm__ ("addu .l1 %1, %2, %0" \
1496	: "=a" (__ll) : "a" (al), "a" (bl)); \
1497	(sl) = (USItype)__ll; \
1498	(sh) = ((USItype)(__ll >> 32)) + (ah) + (bh); \
1499	} \
1500	while (0)
1501
1502	#ifdef _TMS320C6400_PLUS
1503	#define __umulsidi3(u,v) ((UDItype)(USItype)u*(USItype)v)
1504	#define umul_ppmm(w1, w0, u, v) \
1505	do { \
1506	UDItype __x = (UDItype) (USItype) (u) * (USItype) (v); \
1507	(w1) = (USItype) (__x >> 32); \
1508	(w0) = (USItype) (__x); \
1509	} while (0)
1510	#endif /* _TMS320C6400_PLUS */
1511
1512	#define count_leading_zeros(count, x) ((count) = __builtin_clz (x))
1513	#ifdef _TMS320C6400
1514	#define count_trailing_zeros(count, x) ((count) = __builtin_ctz (x))
1515	#endif
1516	#define UMUL_TIME 4
1517	#define UDIV_TIME 40
1518	#endif /* _TMS320C6X */
1519
1520	#if defined (__xtensa__) && W_TYPE_SIZE == 32
1521	/* This code is not Xtensa-configuration-specific, so rely on the compiler
1522	to expand builtin functions depending on what configuration features
1523	are available. This avoids library calls when the operation can be
1524	performed in-line. */
1525	#define umul_ppmm(w1, w0, u, v) \
1526	do { \
1527	DWunion __w; \
1528	__w.ll = __builtin_umulsidi3 (u, v); \
1529	w1 = __w.s.high; \
1530	w0 = __w.s.low; \
1531	} while (0)
1532	#define __umulsidi3(u, v) __builtin_umulsidi3 (u, v)
1533	#define count_leading_zeros(COUNT, X) ((COUNT) = __builtin_clz (X))
1534	#define count_trailing_zeros(COUNT, X) ((COUNT) = __builtin_ctz (X))
1535	#endif /* __xtensa__ */
1536
1537	#if defined xstormy16
1538	extern UHItype __stormy16_count_leading_zeros (UHItype);
1539	#define count_leading_zeros(count, x) \
1540	do \
1541	{ \
1542	UHItype size; \
1543	\
1544	/* We assume that W_TYPE_SIZE is a multiple of 16... */ \
1545	for ((count) = 0, size = W_TYPE_SIZE; size; size -= 16) \
1546	{ \
1547	UHItype c; \
1548	\
1549	c = __clzhi2 ((x) >> (size - 16)); \
1550	(count) += c; \
1551	if (c != 16) \
1552	break; \
1553	} \
1554	} \
1555	while (0)
1556	#define COUNT_LEADING_ZEROS_0 W_TYPE_SIZE
1557	#endif
1558
1559	#if defined (__z8000__) && W_TYPE_SIZE == 16
1560	#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1561	__asm__ ("add %H1,%H5\n\tadc %H0,%H3" \
1562	: "=r" ((unsigned int)(sh)), \
1563	"=&r" ((unsigned int)(sl)) \
1564	: "%0" ((unsigned int)(ah)), \
1565	"r" ((unsigned int)(bh)), \
1566	"%1" ((unsigned int)(al)), \
1567	"rQR" ((unsigned int)(bl)))
1568	#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1569	__asm__ ("sub %H1,%H5\n\tsbc %H0,%H3" \
1570	: "=r" ((unsigned int)(sh)), \
1571	"=&r" ((unsigned int)(sl)) \
1572	: "0" ((unsigned int)(ah)), \
1573	"r" ((unsigned int)(bh)), \
1574	"1" ((unsigned int)(al)), \
1575	"rQR" ((unsigned int)(bl)))
1576	#define umul_ppmm(xh, xl, m0, m1) \
1577	do { \
1578	union {long int __ll; \
1579	struct {unsigned int __h, __l;} __i; \
1580	} __xx; \
1581	unsigned int __m0 = (m0), __m1 = (m1); \
1582	__asm__ ("mult %S0,%H3" \
1583	: "=r" (__xx.__i.__h), \
1584	"=r" (__xx.__i.__l) \
1585	: "%1" (__m0), \
1586	"rQR" (__m1)); \
1587	(xh) = __xx.__i.__h; (xl) = __xx.__i.__l; \
1588	(xh) += ((((signed int) __m0 >> 15) & __m1) \
1589	+ (((signed int) __m1 >> 15) & __m0)); \
1590	} while (0)
1591	#endif /* __z8000__ */
1592
1593	#endif /* __GNUC__ */
1594
1595	/* If this machine has no inline assembler, use C macros. */
1596
1597	#if !defined (add_ssaaaa)
1598	#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1599	do { \
1600	UWtype __x; \
1601	__x = (al) + (bl); \
1602	(sh) = (ah) + (bh) + (__x < (al)); \
1603	(sl) = __x; \
1604	} while (0)
1605	#endif
1606
1607	#if !defined (sub_ddmmss)
1608	#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1609	do { \
1610	UWtype __x; \
1611	__x = (al) - (bl); \
1612	(sh) = (ah) - (bh) - (__x > (al)); \
1613	(sl) = __x; \
1614	} while (0)
1615	#endif
1616
1617	/* If we lack umul_ppmm but have smul_ppmm, define umul_ppmm in terms of
1618	smul_ppmm. */
1619	#if !defined (umul_ppmm) && defined (smul_ppmm)
1620	#define umul_ppmm(w1, w0, u, v) \
1621	do { \
1622	UWtype __w1; \
1623	UWtype __xm0 = (u), __xm1 = (v); \
1624	smul_ppmm (__w1, w0, __xm0, __xm1); \
1625	(w1) = __w1 + (-(__xm0 >> (W_TYPE_SIZE - 1)) & __xm1) \
1626	+ (-(__xm1 >> (W_TYPE_SIZE - 1)) & __xm0); \
1627	} while (0)
1628	#endif
1629
1630	/* If we still don't have umul_ppmm, define it using plain C. */
1631	#if !defined (umul_ppmm)
1632	#define umul_ppmm(w1, w0, u, v) \
1633	do { \
1634	UWtype __x0, __x1, __x2, __x3; \
1635	UHWtype __ul, __vl, __uh, __vh; \
1636	\
1637	__ul = __ll_lowpart (u); \
1638	__uh = __ll_highpart (u); \
1639	__vl = __ll_lowpart (v); \
1640	__vh = __ll_highpart (v); \
1641	\
1642	__x0 = (UWtype) __ul * __vl; \
1643	__x1 = (UWtype) __ul * __vh; \
1644	__x2 = (UWtype) __uh * __vl; \
1645	__x3 = (UWtype) __uh * __vh; \
1646	\
1647	__x1 += __ll_highpart (__x0);/* this can't give carry */ \
1648	__x1 += __x2; /* but this indeed can */ \
1649	if (__x1 < __x2) /* did we get it? */ \
1650	__x3 += __ll_B; /* yes, add it in the proper pos. */ \
1651	\
1652	(w1) = __x3 + __ll_highpart (__x1); \
1653	(w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \
1654	} while (0)
1655	#endif
1656
1657	#if !defined (__umulsidi3)
1658	#define __umulsidi3(u, v) \
1659	({DWunion __w; \
1660	umul_ppmm (__w.s.high, __w.s.low, u, v); \
1661	__w.ll; })
1662	#endif
1663
1664	/* Define this unconditionally, so it can be used for debugging. */
1665	#define __udiv_qrnnd_c(q, r, n1, n0, d) \
1666	do { \
1667	UWtype __d1, __d0, __q1, __q0; \
1668	UWtype __r1, __r0, __m; \
1669	__d1 = __ll_highpart (d); \
1670	__d0 = __ll_lowpart (d); \
1671	\
1672	__r1 = (n1) % __d1; \
1673	__q1 = (n1) / __d1; \
1674	__m = (UWtype) __q1 * __d0; \
1675	__r1 = __r1 * __ll_B \| __ll_highpart (n0); \
1676	if (__r1 < __m) \
1677	{ \
1678	__q1--, __r1 += (d); \
1679	if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */\
1680	if (__r1 < __m) \
1681	__q1--, __r1 += (d); \
1682	} \
1683	__r1 -= __m; \
1684	\
1685	__r0 = __r1 % __d1; \
1686	__q0 = __r1 / __d1; \
1687	__m = (UWtype) __q0 * __d0; \
1688	__r0 = __r0 * __ll_B \| __ll_lowpart (n0); \
1689	if (__r0 < __m) \
1690	{ \
1691	__q0--, __r0 += (d); \
1692	if (__r0 >= (d)) \
1693	if (__r0 < __m) \
1694	__q0--, __r0 += (d); \
1695	} \
1696	__r0 -= __m; \
1697	\
1698	(q) = (UWtype) __q1 * __ll_B \| __q0; \
1699	(r) = __r0; \
1700	} while (0)
1701
1702	/* If the processor has no udiv_qrnnd but sdiv_qrnnd, go through
1703	__udiv_w_sdiv (defined in libgcc or elsewhere). */
1704	#if !defined (udiv_qrnnd) && defined (sdiv_qrnnd)
1705	#define udiv_qrnnd(q, r, nh, nl, d) \
1706	do { \
1707	extern UWtype __udiv_w_sdiv (UWtype *, UWtype, UWtype, UWtype); \
1708	UWtype __r; \
1709	(q) = __udiv_w_sdiv (&__r, nh, nl, d); \
1710	(r) = __r; \
1711	} while (0)
1712	#endif
1713
1714	/* If udiv_qrnnd was not defined for this processor, use __udiv_qrnnd_c. */
1715	#if !defined (udiv_qrnnd)
1716	#define UDIV_NEEDS_NORMALIZATION 1
1717	#define udiv_qrnnd __udiv_qrnnd_c
1718	#endif
1719
1720	#if !defined (count_leading_zeros)
1721	#define count_leading_zeros(count, x) \
1722	do { \
1723	UWtype __xr = (x); \
1724	UWtype __a; \
1725	\
1726	if (W_TYPE_SIZE <= 32) \
1727	{ \
1728	__a = __xr < ((UWtype)1<<2*__BITS4) \
1729	? (__xr < ((UWtype)1<<__BITS4) ? 0 : __BITS4) \
1730	: (__xr < ((UWtype)1<<3__BITS4) ? 2__BITS4 : 3*__BITS4); \
1731	} \
1732	else \
1733	{ \
1734	for (__a = W_TYPE_SIZE - 8; __a > 0; __a -= 8) \
1735	if (((__xr >> __a) & 0xff) != 0) \
1736	break; \
1737	} \
1738	\
1739	(count) = W_TYPE_SIZE - (__clz_tab[__xr >> __a] + __a); \
1740	} while (0)
1741	#define COUNT_LEADING_ZEROS_0 W_TYPE_SIZE
1742	#endif
1743
1744	#if !defined (count_trailing_zeros)
1745	/* Define count_trailing_zeros using count_leading_zeros. The latter might be
1746	defined in asm, but if it is not, the C version above is good enough. */
1747	#define count_trailing_zeros(count, x) \
1748	do { \
1749	UWtype __ctz_x = (x); \
1750	UWtype __ctz_c; \
1751	count_leading_zeros (__ctz_c, __ctz_x & -__ctz_x); \
1752	(count) = W_TYPE_SIZE - 1 - __ctz_c; \
1753	} while (0)
1754	#endif
1755
1756	#ifndef UDIV_NEEDS_NORMALIZATION
1757	#define UDIV_NEEDS_NORMALIZATION 0
1758	#endif

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