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2013-11-21 Richard Biener <rguenther@suse.de>
[official-gcc.git] / libgcc / longlong.h
blob5f00e548a70907d70e93989f5ff02a3671bc633a
1 /* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
2 Copyright (C) 1991-2013 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 (__alpha) && W_TYPE_SIZE == 64
126 #define umul_ppmm(ph, pl, m0, m1) \
127 do { \
128 UDItype __m0 = (m0), __m1 = (m1); \
129 (ph) = __builtin_alpha_umulh (__m0, __m1); \
130 (pl) = __m0 * __m1; \
131 } while (0)
132 #define UMUL_TIME 46
133 #ifndef LONGLONG_STANDALONE
134 #define udiv_qrnnd(q, r, n1, n0, d) \
135 do { UDItype __r; \
136 (q) = __udiv_qrnnd (&__r, (n1), (n0), (d)); \
137 (r) = __r; \
138 } while (0)
139 extern UDItype __udiv_qrnnd (UDItype *, UDItype, UDItype, UDItype);
140 #define UDIV_TIME 220
141 #endif /* LONGLONG_STANDALONE */
142 #ifdef __alpha_cix__
143 #define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clzl (X))
144 #define count_trailing_zeros(COUNT,X) ((COUNT) = __builtin_ctzl (X))
145 #define COUNT_LEADING_ZEROS_0 64
146 #else
147 #define count_leading_zeros(COUNT,X) \
148 do { \
149 UDItype __xr = (X), __t, __a; \
150 __t = __builtin_alpha_cmpbge (0, __xr); \
151 __a = __clz_tab[__t ^ 0xff] - 1; \
152 __t = __builtin_alpha_extbl (__xr, __a); \
153 (COUNT) = 64 - (__clz_tab[__t] + __a*8); \
154 } while (0)
155 #define count_trailing_zeros(COUNT,X) \
156 do { \
157 UDItype __xr = (X), __t, __a; \
158 __t = __builtin_alpha_cmpbge (0, __xr); \
159 __t = ~__t & -~__t; \
160 __a = ((__t & 0xCC) != 0) * 2; \
161 __a += ((__t & 0xF0) != 0) * 4; \
162 __a += ((__t & 0xAA) != 0); \
163 __t = __builtin_alpha_extbl (__xr, __a); \
164 __a <<= 3; \
165 __t &= -__t; \
166 __a += ((__t & 0xCC) != 0) * 2; \
167 __a += ((__t & 0xF0) != 0) * 4; \
168 __a += ((__t & 0xAA) != 0); \
169 (COUNT) = __a; \
170 } while (0)
171 #endif /* __alpha_cix__ */
172 #endif /* __alpha */
173
174 #if defined (__arc__) && W_TYPE_SIZE == 32
175 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
176 __asm__ ("add.f %1, %4, %5\n\tadc %0, %2, %3" \
177 : "=r" ((USItype) (sh)), \
178 "=&r" ((USItype) (sl)) \
179 : "%r" ((USItype) (ah)), \
180 "rIJ" ((USItype) (bh)), \
181 "%r" ((USItype) (al)), \
182 "rIJ" ((USItype) (bl)))
183 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
184 __asm__ ("sub.f %1, %4, %5\n\tsbc %0, %2, %3" \
185 : "=r" ((USItype) (sh)), \
186 "=&r" ((USItype) (sl)) \
187 : "r" ((USItype) (ah)), \
188 "rIJ" ((USItype) (bh)), \
189 "r" ((USItype) (al)), \
190 "rIJ" ((USItype) (bl)))
191
192 #define __umulsidi3(u,v) ((UDItype)(USItype)u*(USItype)v)
193 #ifdef __ARC_NORM__
194 #define count_leading_zeros(count, x) \
195 do \
196 { \
197 SItype c_; \
198 \
199 __asm__ ("norm.f\t%0,%1\n\tmov.mi\t%0,-1" : "=r" (c_) : "r" (x) : "cc");\
200 (count) = c_ + 1; \
201 } \
202 while (0)
203 #define COUNT_LEADING_ZEROS_0 32
204 #endif
205 #endif
206
207 #if defined (__arm__) && (defined (__thumb2__) || !defined (__thumb__)) \
208 && W_TYPE_SIZE == 32
209 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
210 __asm__ ("adds %1, %4, %5\n\tadc %0, %2, %3" \
211 : "=r" ((USItype) (sh)), \
212 "=&r" ((USItype) (sl)) \
213 : "%r" ((USItype) (ah)), \
214 "rI" ((USItype) (bh)), \
215 "%r" ((USItype) (al)), \
216 "rI" ((USItype) (bl)) __CLOBBER_CC)
217 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
218 __asm__ ("subs %1, %4, %5\n\tsbc %0, %2, %3" \
219 : "=r" ((USItype) (sh)), \
220 "=&r" ((USItype) (sl)) \
221 : "r" ((USItype) (ah)), \
222 "rI" ((USItype) (bh)), \
223 "r" ((USItype) (al)), \
224 "rI" ((USItype) (bl)) __CLOBBER_CC)
225 # if defined(__ARM_ARCH_2__) || defined(__ARM_ARCH_2A__) \
226 || defined(__ARM_ARCH_3__)
227 # define umul_ppmm(xh, xl, a, b) \
228 do { \
229 register USItype __t0, __t1, __t2; \
230 __asm__ ("%@ Inlined umul_ppmm\n" \
231 " mov %2, %5, lsr #16\n" \
232 " mov %0, %6, lsr #16\n" \
233 " bic %3, %5, %2, lsl #16\n" \
234 " bic %4, %6, %0, lsl #16\n" \
235 " mul %1, %3, %4\n" \
236 " mul %4, %2, %4\n" \
237 " mul %3, %0, %3\n" \
238 " mul %0, %2, %0\n" \
239 " adds %3, %4, %3\n" \
240 " addcs %0, %0, #65536\n" \
241 " adds %1, %1, %3, lsl #16\n" \
242 " adc %0, %0, %3, lsr #16" \
243 : "=&r" ((USItype) (xh)), \
244 "=r" ((USItype) (xl)), \
245 "=&r" (__t0), "=&r" (__t1), "=r" (__t2) \
246 : "r" ((USItype) (a)), \
247 "r" ((USItype) (b)) __CLOBBER_CC ); \
248 } while (0)
249 # define UMUL_TIME 20
250 # else
251 # define umul_ppmm(xh, xl, a, b) \
252 do { \
253 /* Generate umull, under compiler control. */ \
254 register UDItype __t0 = (UDItype)(USItype)(a) * (USItype)(b); \
255 (xl) = (USItype)__t0; \
256 (xh) = (USItype)(__t0 >> 32); \
257 } while (0)
258 # define UMUL_TIME 3
259 # endif
260 # define UDIV_TIME 100
261 #endif /* __arm__ */
262
263 #if defined(__arm__)
264 /* Let gcc decide how best to implement count_leading_zeros. */
265 #define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clz (X))
266 #define count_trailing_zeros(COUNT,X) ((COUNT) = __builtin_ctz (X))
267 #define COUNT_LEADING_ZEROS_0 32
268 #endif
269
270 #if defined (__AVR__)
271
272 #if W_TYPE_SIZE == 16
273 #define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clz (X))
274 #define count_trailing_zeros(COUNT,X) ((COUNT) = __builtin_ctz (X))
275 #define COUNT_LEADING_ZEROS_0 16
276 #endif /* W_TYPE_SIZE == 16 */
277
278 #if W_TYPE_SIZE == 32
279 #define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clzl (X))
280 #define count_trailing_zeros(COUNT,X) ((COUNT) = __builtin_ctzl (X))
281 #define COUNT_LEADING_ZEROS_0 32
282 #endif /* W_TYPE_SIZE == 32 */
283
284 #if W_TYPE_SIZE == 64
285 #define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clzll (X))
286 #define count_trailing_zeros(COUNT,X) ((COUNT) = __builtin_ctzll (X))
287 #define COUNT_LEADING_ZEROS_0 64
288 #endif /* W_TYPE_SIZE == 64 */
289
290 #endif /* defined (__AVR__) */
291
292 #if defined (__CRIS__)
293
294 #if __CRIS_arch_version >= 3
295 #define count_leading_zeros(COUNT, X) ((COUNT) = __builtin_clz (X))
296 #define COUNT_LEADING_ZEROS_0 32
297 #endif /* __CRIS_arch_version >= 3 */
298
299 #if __CRIS_arch_version >= 8
300 #define count_trailing_zeros(COUNT, X) ((COUNT) = __builtin_ctz (X))
301 #endif /* __CRIS_arch_version >= 8 */
302
303 #if __CRIS_arch_version >= 10
304 #define __umulsidi3(u,v) ((UDItype)(USItype) (u) * (UDItype)(USItype) (v))
305 #else
306 #define __umulsidi3 __umulsidi3
307 extern UDItype __umulsidi3 (USItype, USItype);
308 #endif /* __CRIS_arch_version >= 10 */
309
310 #define umul_ppmm(w1, w0, u, v) \
311 do { \
312 UDItype __x = __umulsidi3 (u, v); \
313 (w0) = (USItype) (__x); \
314 (w1) = (USItype) (__x >> 32); \
315 } while (0)
316
317 /* FIXME: defining add_ssaaaa and sub_ddmmss should be advantageous for
318 DFmode ("double" intrinsics, avoiding two of the three insns handling
319 carry), but defining them as open-code C composing and doing the
320 operation in DImode (UDImode) shows that the DImode needs work:
321 register pressure from requiring neighboring registers and the
322 traffic to and from them come to dominate, in the 4.7 series. */
323
324 #endif /* defined (__CRIS__) */
325
326 #if defined (__hppa) && W_TYPE_SIZE == 32
327 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
328 __asm__ ("add %4,%5,%1\n\taddc %2,%3,%0" \
329 : "=r" ((USItype) (sh)), \
330 "=&r" ((USItype) (sl)) \
331 : "%rM" ((USItype) (ah)), \
332 "rM" ((USItype) (bh)), \
333 "%rM" ((USItype) (al)), \
334 "rM" ((USItype) (bl)))
335 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
336 __asm__ ("sub %4,%5,%1\n\tsubb %2,%3,%0" \
337 : "=r" ((USItype) (sh)), \
338 "=&r" ((USItype) (sl)) \
339 : "rM" ((USItype) (ah)), \
340 "rM" ((USItype) (bh)), \
341 "rM" ((USItype) (al)), \
342 "rM" ((USItype) (bl)))
343 #if defined (_PA_RISC1_1)
344 #define umul_ppmm(w1, w0, u, v) \
345 do { \
346 union \
347 { \
348 UDItype __f; \
349 struct {USItype __w1, __w0;} __w1w0; \
350 } __t; \
351 __asm__ ("xmpyu %1,%2,%0" \
352 : "=x" (__t.__f) \
353 : "x" ((USItype) (u)), \
354 "x" ((USItype) (v))); \
355 (w1) = __t.__w1w0.__w1; \
356 (w0) = __t.__w1w0.__w0; \
357 } while (0)
358 #define UMUL_TIME 8
359 #else
360 #define UMUL_TIME 30
361 #endif
362 #define UDIV_TIME 40
363 #define count_leading_zeros(count, x) \
364 do { \
365 USItype __tmp; \
366 __asm__ ( \
367 "ldi 1,%0\n" \
368 " extru,= %1,15,16,%%r0 ; Bits 31..16 zero?\n" \
369 " extru,tr %1,15,16,%1 ; No. Shift down, skip add.\n"\
370 " ldo 16(%0),%0 ; Yes. Perform add.\n" \
371 " extru,= %1,23,8,%%r0 ; Bits 15..8 zero?\n" \
372 " extru,tr %1,23,8,%1 ; No. Shift down, skip add.\n"\
373 " ldo 8(%0),%0 ; Yes. Perform add.\n" \
374 " extru,= %1,27,4,%%r0 ; Bits 7..4 zero?\n" \
375 " extru,tr %1,27,4,%1 ; No. Shift down, skip add.\n"\
376 " ldo 4(%0),%0 ; Yes. Perform add.\n" \
377 " extru,= %1,29,2,%%r0 ; Bits 3..2 zero?\n" \
378 " extru,tr %1,29,2,%1 ; No. Shift down, skip add.\n"\
379 " ldo 2(%0),%0 ; Yes. Perform add.\n" \
380 " extru %1,30,1,%1 ; Extract bit 1.\n" \
381 " sub %0,%1,%0 ; Subtract it.\n" \
382 : "=r" (count), "=r" (__tmp) : "1" (x)); \
383 } while (0)
384 #endif
385
386 #if (defined (__i370__) || defined (__s390__) || defined (__mvs__)) && W_TYPE_SIZE == 32
387 #if !defined (__zarch__)
388 #define smul_ppmm(xh, xl, m0, m1) \
389 do { \
390 union {DItype __ll; \
391 struct {USItype __h, __l;} __i; \
392 } __x; \
393 __asm__ ("lr %N0,%1\n\tmr %0,%2" \
394 : "=&r" (__x.__ll) \
395 : "r" (m0), "r" (m1)); \
396 (xh) = __x.__i.__h; (xl) = __x.__i.__l; \
397 } while (0)
398 #define sdiv_qrnnd(q, r, n1, n0, d) \
399 do { \
400 union {DItype __ll; \
401 struct {USItype __h, __l;} __i; \
402 } __x; \
403 __x.__i.__h = n1; __x.__i.__l = n0; \
404 __asm__ ("dr %0,%2" \
405 : "=r" (__x.__ll) \
406 : "0" (__x.__ll), "r" (d)); \
407 (q) = __x.__i.__l; (r) = __x.__i.__h; \
408 } while (0)
409 #else
410 #define smul_ppmm(xh, xl, m0, m1) \
411 do { \
412 register SItype __r0 __asm__ ("0"); \
413 register SItype __r1 __asm__ ("1") = (m0); \
414 \
415 __asm__ ("mr\t%%r0,%3" \
416 : "=r" (__r0), "=r" (__r1) \
417 : "r" (__r1), "r" (m1)); \
418 (xh) = __r0; (xl) = __r1; \
419 } while (0)
420
421 #define sdiv_qrnnd(q, r, n1, n0, d) \
422 do { \
423 register SItype __r0 __asm__ ("0") = (n1); \
424 register SItype __r1 __asm__ ("1") = (n0); \
425 \
426 __asm__ ("dr\t%%r0,%4" \
427 : "=r" (__r0), "=r" (__r1) \
428 : "r" (__r0), "r" (__r1), "r" (d)); \
429 (q) = __r1; (r) = __r0; \
430 } while (0)
431 #endif /* __zarch__ */
432 #endif
433
434 #if (defined (__i386__) || defined (__i486__)) && W_TYPE_SIZE == 32
435 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
436 __asm__ ("add{l} {%5,%1|%1,%5}\n\tadc{l} {%3,%0|%0,%3}" \
437 : "=r" ((USItype) (sh)), \
438 "=&r" ((USItype) (sl)) \
439 : "%0" ((USItype) (ah)), \
440 "g" ((USItype) (bh)), \
441 "%1" ((USItype) (al)), \
442 "g" ((USItype) (bl)))
443 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
444 __asm__ ("sub{l} {%5,%1|%1,%5}\n\tsbb{l} {%3,%0|%0,%3}" \
445 : "=r" ((USItype) (sh)), \
446 "=&r" ((USItype) (sl)) \
447 : "0" ((USItype) (ah)), \
448 "g" ((USItype) (bh)), \
449 "1" ((USItype) (al)), \
450 "g" ((USItype) (bl)))
451 #define umul_ppmm(w1, w0, u, v) \
452 __asm__ ("mul{l} %3" \
453 : "=a" ((USItype) (w0)), \
454 "=d" ((USItype) (w1)) \
455 : "%0" ((USItype) (u)), \
456 "rm" ((USItype) (v)))
457 #define udiv_qrnnd(q, r, n1, n0, dv) \
458 __asm__ ("div{l} %4" \
459 : "=a" ((USItype) (q)), \
460 "=d" ((USItype) (r)) \
461 : "0" ((USItype) (n0)), \
462 "1" ((USItype) (n1)), \
463 "rm" ((USItype) (dv)))
464 #define count_leading_zeros(count, x) ((count) = __builtin_clz (x))
465 #define count_trailing_zeros(count, x) ((count) = __builtin_ctz (x))
466 #define UMUL_TIME 40
467 #define UDIV_TIME 40
468 #endif /* 80x86 */
469
470 #if (defined (__x86_64__) || defined (__i386__)) && W_TYPE_SIZE == 64
471 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
472 __asm__ ("add{q} {%5,%1|%1,%5}\n\tadc{q} {%3,%0|%0,%3}" \
473 : "=r" ((UDItype) (sh)), \
474 "=&r" ((UDItype) (sl)) \
475 : "%0" ((UDItype) (ah)), \
476 "rme" ((UDItype) (bh)), \
477 "%1" ((UDItype) (al)), \
478 "rme" ((UDItype) (bl)))
479 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
480 __asm__ ("sub{q} {%5,%1|%1,%5}\n\tsbb{q} {%3,%0|%0,%3}" \
481 : "=r" ((UDItype) (sh)), \
482 "=&r" ((UDItype) (sl)) \
483 : "0" ((UDItype) (ah)), \
484 "rme" ((UDItype) (bh)), \
485 "1" ((UDItype) (al)), \
486 "rme" ((UDItype) (bl)))
487 #define umul_ppmm(w1, w0, u, v) \
488 __asm__ ("mul{q} %3" \
489 : "=a" ((UDItype) (w0)), \
490 "=d" ((UDItype) (w1)) \
491 : "%0" ((UDItype) (u)), \
492 "rm" ((UDItype) (v)))
493 #define udiv_qrnnd(q, r, n1, n0, dv) \
494 __asm__ ("div{q} %4" \
495 : "=a" ((UDItype) (q)), \
496 "=d" ((UDItype) (r)) \
497 : "0" ((UDItype) (n0)), \
498 "1" ((UDItype) (n1)), \
499 "rm" ((UDItype) (dv)))
500 #define count_leading_zeros(count, x) ((count) = __builtin_clzll (x))
501 #define count_trailing_zeros(count, x) ((count) = __builtin_ctzll (x))
502 #define UMUL_TIME 40
503 #define UDIV_TIME 40
504 #endif /* x86_64 */
505
506 #if defined (__i960__) && W_TYPE_SIZE == 32
507 #define umul_ppmm(w1, w0, u, v) \
508 ({union {UDItype __ll; \
509 struct {USItype __l, __h;} __i; \
510 } __xx; \
511 __asm__ ("emul %2,%1,%0" \
512 : "=d" (__xx.__ll) \
513 : "%dI" ((USItype) (u)), \
514 "dI" ((USItype) (v))); \
515 (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
516 #define __umulsidi3(u, v) \
517 ({UDItype __w; \
518 __asm__ ("emul %2,%1,%0" \
519 : "=d" (__w) \
520 : "%dI" ((USItype) (u)), \
521 "dI" ((USItype) (v))); \
522 __w; })
523 #endif /* __i960__ */
524
525 #if defined (__ia64) && W_TYPE_SIZE == 64
526 /* This form encourages gcc (pre-release 3.4 at least) to emit predicated
527 "sub r=r,r" and "sub r=r,r,1", giving a 2 cycle latency. The generic
528 code using "al<bl" arithmetically comes out making an actual 0 or 1 in a
529 register, which takes an extra cycle. */
530 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
531 do { \
532 UWtype __x; \
533 __x = (al) - (bl); \
534 if ((al) < (bl)) \
535 (sh) = (ah) - (bh) - 1; \
536 else \
537 (sh) = (ah) - (bh); \
538 (sl) = __x; \
539 } while (0)
540
541 /* Do both product parts in assembly, since that gives better code with
542 all gcc versions. Some callers will just use the upper part, and in
543 that situation we waste an instruction, but not any cycles. */
544 #define umul_ppmm(ph, pl, m0, m1) \
545 __asm__ ("xma.hu %0 = %2, %3, f0\n\txma.l %1 = %2, %3, f0" \
546 : "=&f" (ph), "=f" (pl) \
547 : "f" (m0), "f" (m1))
548 #define count_leading_zeros(count, x) \
549 do { \
550 UWtype _x = (x), _y, _a, _c; \
551 __asm__ ("mux1 %0 = %1, @rev" : "=r" (_y) : "r" (_x)); \
552 __asm__ ("czx1.l %0 = %1" : "=r" (_a) : "r" (-_y | _y)); \
553 _c = (_a - 1) << 3; \
554 _x >>= _c; \
555 if (_x >= 1 << 4) \
556 _x >>= 4, _c += 4; \
557 if (_x >= 1 << 2) \
558 _x >>= 2, _c += 2; \
559 _c += _x >> 1; \
560 (count) = W_TYPE_SIZE - 1 - _c; \
561 } while (0)
562 /* similar to what gcc does for __builtin_ffs, but 0 based rather than 1
563 based, and we don't need a special case for x==0 here */
564 #define count_trailing_zeros(count, x) \
565 do { \
566 UWtype __ctz_x = (x); \
567 __asm__ ("popcnt %0 = %1" \
568 : "=r" (count) \
569 : "r" ((__ctz_x-1) & ~__ctz_x)); \
570 } while (0)
571 #define UMUL_TIME 14
572 #endif
573
574 #if defined (__M32R__) && W_TYPE_SIZE == 32
575 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
576 /* The cmp clears the condition bit. */ \
577 __asm__ ("cmp %0,%0\n\taddx %1,%5\n\taddx %0,%3" \
578 : "=r" ((USItype) (sh)), \
579 "=&r" ((USItype) (sl)) \
580 : "0" ((USItype) (ah)), \
581 "r" ((USItype) (bh)), \
582 "1" ((USItype) (al)), \
583 "r" ((USItype) (bl)) \
584 : "cbit")
585 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
586 /* The cmp clears the condition bit. */ \
587 __asm__ ("cmp %0,%0\n\tsubx %1,%5\n\tsubx %0,%3" \
588 : "=r" ((USItype) (sh)), \
589 "=&r" ((USItype) (sl)) \
590 : "0" ((USItype) (ah)), \
591 "r" ((USItype) (bh)), \
592 "1" ((USItype) (al)), \
593 "r" ((USItype) (bl)) \
594 : "cbit")
595 #endif /* __M32R__ */
596
597 #if defined (__mc68000__) && W_TYPE_SIZE == 32
598 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
599 __asm__ ("add%.l %5,%1\n\taddx%.l %3,%0" \
600 : "=d" ((USItype) (sh)), \
601 "=&d" ((USItype) (sl)) \
602 : "%0" ((USItype) (ah)), \
603 "d" ((USItype) (bh)), \
604 "%1" ((USItype) (al)), \
605 "g" ((USItype) (bl)))
606 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
607 __asm__ ("sub%.l %5,%1\n\tsubx%.l %3,%0" \
608 : "=d" ((USItype) (sh)), \
609 "=&d" ((USItype) (sl)) \
610 : "0" ((USItype) (ah)), \
611 "d" ((USItype) (bh)), \
612 "1" ((USItype) (al)), \
613 "g" ((USItype) (bl)))
614
615 /* The '020, '030, '040, '060 and CPU32 have 32x32->64 and 64/32->32q-32r. */
616 #if (defined (__mc68020__) && !defined (__mc68060__))
617 #define umul_ppmm(w1, w0, u, v) \
618 __asm__ ("mulu%.l %3,%1:%0" \
619 : "=d" ((USItype) (w0)), \
620 "=d" ((USItype) (w1)) \
621 : "%0" ((USItype) (u)), \
622 "dmi" ((USItype) (v)))
623 #define UMUL_TIME 45
624 #define udiv_qrnnd(q, r, n1, n0, d) \
625 __asm__ ("divu%.l %4,%1:%0" \
626 : "=d" ((USItype) (q)), \
627 "=d" ((USItype) (r)) \
628 : "0" ((USItype) (n0)), \
629 "1" ((USItype) (n1)), \
630 "dmi" ((USItype) (d)))
631 #define UDIV_TIME 90
632 #define sdiv_qrnnd(q, r, n1, n0, d) \
633 __asm__ ("divs%.l %4,%1:%0" \
634 : "=d" ((USItype) (q)), \
635 "=d" ((USItype) (r)) \
636 : "0" ((USItype) (n0)), \
637 "1" ((USItype) (n1)), \
638 "dmi" ((USItype) (d)))
639
640 #elif defined (__mcoldfire__) /* not mc68020 */
641
642 #define umul_ppmm(xh, xl, a, b) \
643 __asm__ ("| Inlined umul_ppmm\n" \
644 " move%.l %2,%/d0\n" \
645 " move%.l %3,%/d1\n" \
646 " move%.l %/d0,%/d2\n" \
647 " swap %/d0\n" \
648 " move%.l %/d1,%/d3\n" \
649 " swap %/d1\n" \
650 " move%.w %/d2,%/d4\n" \
651 " mulu %/d3,%/d4\n" \
652 " mulu %/d1,%/d2\n" \
653 " mulu %/d0,%/d3\n" \
654 " mulu %/d0,%/d1\n" \
655 " move%.l %/d4,%/d0\n" \
656 " clr%.w %/d0\n" \
657 " swap %/d0\n" \
658 " add%.l %/d0,%/d2\n" \
659 " add%.l %/d3,%/d2\n" \
660 " jcc 1f\n" \
661 " add%.l %#65536,%/d1\n" \
662 "1: swap %/d2\n" \
663 " moveq %#0,%/d0\n" \
664 " move%.w %/d2,%/d0\n" \
665 " move%.w %/d4,%/d2\n" \
666 " move%.l %/d2,%1\n" \
667 " add%.l %/d1,%/d0\n" \
668 " move%.l %/d0,%0" \
669 : "=g" ((USItype) (xh)), \
670 "=g" ((USItype) (xl)) \
671 : "g" ((USItype) (a)), \
672 "g" ((USItype) (b)) \
673 : "d0", "d1", "d2", "d3", "d4")
674 #define UMUL_TIME 100
675 #define UDIV_TIME 400
676 #else /* not ColdFire */
677 /* %/ inserts REGISTER_PREFIX, %# inserts IMMEDIATE_PREFIX. */
678 #define umul_ppmm(xh, xl, a, b) \
679 __asm__ ("| Inlined umul_ppmm\n" \
680 " move%.l %2,%/d0\n" \
681 " move%.l %3,%/d1\n" \
682 " move%.l %/d0,%/d2\n" \
683 " swap %/d0\n" \
684 " move%.l %/d1,%/d3\n" \
685 " swap %/d1\n" \
686 " move%.w %/d2,%/d4\n" \
687 " mulu %/d3,%/d4\n" \
688 " mulu %/d1,%/d2\n" \
689 " mulu %/d0,%/d3\n" \
690 " mulu %/d0,%/d1\n" \
691 " move%.l %/d4,%/d0\n" \
692 " eor%.w %/d0,%/d0\n" \
693 " swap %/d0\n" \
694 " add%.l %/d0,%/d2\n" \
695 " add%.l %/d3,%/d2\n" \
696 " jcc 1f\n" \
697 " add%.l %#65536,%/d1\n" \
698 "1: swap %/d2\n" \
699 " moveq %#0,%/d0\n" \
700 " move%.w %/d2,%/d0\n" \
701 " move%.w %/d4,%/d2\n" \
702 " move%.l %/d2,%1\n" \
703 " add%.l %/d1,%/d0\n" \
704 " move%.l %/d0,%0" \
705 : "=g" ((USItype) (xh)), \
706 "=g" ((USItype) (xl)) \
707 : "g" ((USItype) (a)), \
708 "g" ((USItype) (b)) \
709 : "d0", "d1", "d2", "d3", "d4")
710 #define UMUL_TIME 100
711 #define UDIV_TIME 400
712
713 #endif /* not mc68020 */
714
715 /* The '020, '030, '040 and '060 have bitfield insns.
716 cpu32 disguises as a 68020, but lacks them. */
717 #if defined (__mc68020__) && !defined (__mcpu32__)
718 #define count_leading_zeros(count, x) \
719 __asm__ ("bfffo %1{%b2:%b2},%0" \
720 : "=d" ((USItype) (count)) \
721 : "od" ((USItype) (x)), "n" (0))
722 /* Some ColdFire architectures have a ff1 instruction supported via
723 __builtin_clz. */
724 #elif defined (__mcfisaaplus__) || defined (__mcfisac__)
725 #define count_leading_zeros(count,x) ((count) = __builtin_clz (x))
726 #define COUNT_LEADING_ZEROS_0 32
727 #endif
728 #endif /* mc68000 */
729
730 #if defined (__m88000__) && W_TYPE_SIZE == 32
731 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
732 __asm__ ("addu.co %1,%r4,%r5\n\taddu.ci %0,%r2,%r3" \
733 : "=r" ((USItype) (sh)), \
734 "=&r" ((USItype) (sl)) \
735 : "%rJ" ((USItype) (ah)), \
736 "rJ" ((USItype) (bh)), \
737 "%rJ" ((USItype) (al)), \
738 "rJ" ((USItype) (bl)))
739 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
740 __asm__ ("subu.co %1,%r4,%r5\n\tsubu.ci %0,%r2,%r3" \
741 : "=r" ((USItype) (sh)), \
742 "=&r" ((USItype) (sl)) \
743 : "rJ" ((USItype) (ah)), \
744 "rJ" ((USItype) (bh)), \
745 "rJ" ((USItype) (al)), \
746 "rJ" ((USItype) (bl)))
747 #define count_leading_zeros(count, x) \
748 do { \
749 USItype __cbtmp; \
750 __asm__ ("ff1 %0,%1" \
751 : "=r" (__cbtmp) \
752 : "r" ((USItype) (x))); \
753 (count) = __cbtmp ^ 31; \
754 } while (0)
755 #define COUNT_LEADING_ZEROS_0 63 /* sic */
756 #if defined (__mc88110__)
757 #define umul_ppmm(wh, wl, u, v) \
758 do { \
759 union {UDItype __ll; \
760 struct {USItype __h, __l;} __i; \
761 } __xx; \
762 __asm__ ("mulu.d %0,%1,%2" \
763 : "=r" (__xx.__ll) \
764 : "r" ((USItype) (u)), \
765 "r" ((USItype) (v))); \
766 (wh) = __xx.__i.__h; \
767 (wl) = __xx.__i.__l; \
768 } while (0)
769 #define udiv_qrnnd(q, r, n1, n0, d) \
770 ({union {UDItype __ll; \
771 struct {USItype __h, __l;} __i; \
772 } __xx; \
773 USItype __q; \
774 __xx.__i.__h = (n1); __xx.__i.__l = (n0); \
775 __asm__ ("divu.d %0,%1,%2" \
776 : "=r" (__q) \
777 : "r" (__xx.__ll), \
778 "r" ((USItype) (d))); \
779 (r) = (n0) - __q * (d); (q) = __q; })
780 #define UMUL_TIME 5
781 #define UDIV_TIME 25
782 #else
783 #define UMUL_TIME 17
784 #define UDIV_TIME 150
785 #endif /* __mc88110__ */
786 #endif /* __m88000__ */
787
788 #if defined (__mn10300__)
789 # if defined (__AM33__)
790 # define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clz (X))
791 # define umul_ppmm(w1, w0, u, v) \
792 asm("mulu %3,%2,%1,%0" : "=r"(w0), "=r"(w1) : "r"(u), "r"(v))
793 # define smul_ppmm(w1, w0, u, v) \
794 asm("mul %3,%2,%1,%0" : "=r"(w0), "=r"(w1) : "r"(u), "r"(v))
795 # else
796 # define umul_ppmm(w1, w0, u, v) \
797 asm("nop; nop; mulu %3,%0" : "=d"(w0), "=z"(w1) : "%0"(u), "d"(v))
798 # define smul_ppmm(w1, w0, u, v) \
799 asm("nop; nop; mul %3,%0" : "=d"(w0), "=z"(w1) : "%0"(u), "d"(v))
800 # endif
801 # define add_ssaaaa(sh, sl, ah, al, bh, bl) \
802 do { \
803 DWunion __s, __a, __b; \
804 __a.s.low = (al); __a.s.high = (ah); \
805 __b.s.low = (bl); __b.s.high = (bh); \
806 __s.ll = __a.ll + __b.ll; \
807 (sl) = __s.s.low; (sh) = __s.s.high; \
808 } while (0)
809 # define sub_ddmmss(sh, sl, ah, al, bh, bl) \
810 do { \
811 DWunion __s, __a, __b; \
812 __a.s.low = (al); __a.s.high = (ah); \
813 __b.s.low = (bl); __b.s.high = (bh); \
814 __s.ll = __a.ll - __b.ll; \
815 (sl) = __s.s.low; (sh) = __s.s.high; \
816 } while (0)
817 # define udiv_qrnnd(q, r, nh, nl, d) \
818 asm("divu %2,%0" : "=D"(q), "=z"(r) : "D"(d), "0"(nl), "1"(nh))
819 # define sdiv_qrnnd(q, r, nh, nl, d) \
820 asm("div %2,%0" : "=D"(q), "=z"(r) : "D"(d), "0"(nl), "1"(nh))
821 # define UMUL_TIME 3
822 # define UDIV_TIME 38
823 #endif
824
825 #if defined (__mips__) && W_TYPE_SIZE == 32
826 #define umul_ppmm(w1, w0, u, v) \
827 do { \
828 UDItype __x = (UDItype) (USItype) (u) * (USItype) (v); \
829 (w1) = (USItype) (__x >> 32); \
830 (w0) = (USItype) (__x); \
831 } while (0)
832 #define UMUL_TIME 10
833 #define UDIV_TIME 100
834
835 #if (__mips == 32 || __mips == 64) && ! __mips16
836 #define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clz (X))
837 #define COUNT_LEADING_ZEROS_0 32
838 #endif
839 #endif /* __mips__ */
840
841 #if defined (__ns32000__) && W_TYPE_SIZE == 32
842 #define umul_ppmm(w1, w0, u, v) \
843 ({union {UDItype __ll; \
844 struct {USItype __l, __h;} __i; \
845 } __xx; \
846 __asm__ ("meid %2,%0" \
847 : "=g" (__xx.__ll) \
848 : "%0" ((USItype) (u)), \
849 "g" ((USItype) (v))); \
850 (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
851 #define __umulsidi3(u, v) \
852 ({UDItype __w; \
853 __asm__ ("meid %2,%0" \
854 : "=g" (__w) \
855 : "%0" ((USItype) (u)), \
856 "g" ((USItype) (v))); \
857 __w; })
858 #define udiv_qrnnd(q, r, n1, n0, d) \
859 ({union {UDItype __ll; \
860 struct {USItype __l, __h;} __i; \
861 } __xx; \
862 __xx.__i.__h = (n1); __xx.__i.__l = (n0); \
863 __asm__ ("deid %2,%0" \
864 : "=g" (__xx.__ll) \
865 : "0" (__xx.__ll), \
866 "g" ((USItype) (d))); \
867 (r) = __xx.__i.__l; (q) = __xx.__i.__h; })
868 #define count_trailing_zeros(count,x) \
869 do { \
870 __asm__ ("ffsd %2,%0" \
871 : "=r" ((USItype) (count)) \
872 : "0" ((USItype) 0), \
873 "r" ((USItype) (x))); \
874 } while (0)
875 #endif /* __ns32000__ */
876
877 /* FIXME: We should test _IBMR2 here when we add assembly support for the
878 system vendor compilers.
879 FIXME: What's needed for gcc PowerPC VxWorks? __vxworks__ is not good
880 enough, since that hits ARM and m68k too. */
881 #if (defined (_ARCH_PPC) /* AIX */ \
882 || defined (__powerpc__) /* gcc */ \
883 || defined (__POWERPC__) /* BEOS */ \
884 || defined (__ppc__) /* Darwin */ \
885 || (defined (PPC) && ! defined (CPU_FAMILY)) /* gcc 2.7.x GNU&SysV */ \
886 || (defined (PPC) && defined (CPU_FAMILY) /* VxWorks */ \
887 && CPU_FAMILY == PPC) \
888 ) && W_TYPE_SIZE == 32
889 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
890 do { \
891 if (__builtin_constant_p (bh) && (bh) == 0) \
892 __asm__ ("add%I4c %1,%3,%4\n\taddze %0,%2" \
893 : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
894 else if (__builtin_constant_p (bh) && (bh) == ~(USItype) 0) \
895 __asm__ ("add%I4c %1,%3,%4\n\taddme %0,%2" \
896 : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
897 else \
898 __asm__ ("add%I5c %1,%4,%5\n\tadde %0,%2,%3" \
899 : "=r" (sh), "=&r" (sl) \
900 : "%r" (ah), "r" (bh), "%r" (al), "rI" (bl)); \
901 } while (0)
902 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
903 do { \
904 if (__builtin_constant_p (ah) && (ah) == 0) \
905 __asm__ ("subf%I3c %1,%4,%3\n\tsubfze %0,%2" \
906 : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
907 else if (__builtin_constant_p (ah) && (ah) == ~(USItype) 0) \
908 __asm__ ("subf%I3c %1,%4,%3\n\tsubfme %0,%2" \
909 : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
910 else if (__builtin_constant_p (bh) && (bh) == 0) \
911 __asm__ ("subf%I3c %1,%4,%3\n\taddme %0,%2" \
912 : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
913 else if (__builtin_constant_p (bh) && (bh) == ~(USItype) 0) \
914 __asm__ ("subf%I3c %1,%4,%3\n\taddze %0,%2" \
915 : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
916 else \
917 __asm__ ("subf%I4c %1,%5,%4\n\tsubfe %0,%3,%2" \
918 : "=r" (sh), "=&r" (sl) \
919 : "r" (ah), "r" (bh), "rI" (al), "r" (bl)); \
920 } while (0)
921 #define count_leading_zeros(count, x) \
922 __asm__ ("cntlzw %0,%1" : "=r" (count) : "r" (x))
923 #define COUNT_LEADING_ZEROS_0 32
924 #if defined (_ARCH_PPC) || defined (__powerpc__) || defined (__POWERPC__) \
925 || defined (__ppc__) \
926 || (defined (PPC) && ! defined (CPU_FAMILY)) /* gcc 2.7.x GNU&SysV */ \
927 || (defined (PPC) && defined (CPU_FAMILY) /* VxWorks */ \
928 && CPU_FAMILY == PPC)
929 #define umul_ppmm(ph, pl, m0, m1) \
930 do { \
931 USItype __m0 = (m0), __m1 = (m1); \
932 __asm__ ("mulhwu %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
933 (pl) = __m0 * __m1; \
934 } while (0)
935 #define UMUL_TIME 15
936 #define smul_ppmm(ph, pl, m0, m1) \
937 do { \
938 SItype __m0 = (m0), __m1 = (m1); \
939 __asm__ ("mulhw %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
940 (pl) = __m0 * __m1; \
941 } while (0)
942 #define SMUL_TIME 14
943 #define UDIV_TIME 120
944 #endif
945 #endif /* 32-bit POWER architecture variants. */
946
947 /* We should test _IBMR2 here when we add assembly support for the system
948 vendor compilers. */
949 #if (defined (_ARCH_PPC64) || defined (__powerpc64__)) && W_TYPE_SIZE == 64
950 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
951 do { \
952 if (__builtin_constant_p (bh) && (bh) == 0) \
953 __asm__ ("add%I4c %1,%3,%4\n\taddze %0,%2" \
954 : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
955 else if (__builtin_constant_p (bh) && (bh) == ~(UDItype) 0) \
956 __asm__ ("add%I4c %1,%3,%4\n\taddme %0,%2" \
957 : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
958 else \
959 __asm__ ("add%I5c %1,%4,%5\n\tadde %0,%2,%3" \
960 : "=r" (sh), "=&r" (sl) \
961 : "%r" (ah), "r" (bh), "%r" (al), "rI" (bl)); \
962 } while (0)
963 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
964 do { \
965 if (__builtin_constant_p (ah) && (ah) == 0) \
966 __asm__ ("subf%I3c %1,%4,%3\n\tsubfze %0,%2" \
967 : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
968 else if (__builtin_constant_p (ah) && (ah) == ~(UDItype) 0) \
969 __asm__ ("subf%I3c %1,%4,%3\n\tsubfme %0,%2" \
970 : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
971 else if (__builtin_constant_p (bh) && (bh) == 0) \
972 __asm__ ("subf%I3c %1,%4,%3\n\taddme %0,%2" \
973 : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
974 else if (__builtin_constant_p (bh) && (bh) == ~(UDItype) 0) \
975 __asm__ ("subf%I3c %1,%4,%3\n\taddze %0,%2" \
976 : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
977 else \
978 __asm__ ("subf%I4c %1,%5,%4\n\tsubfe %0,%3,%2" \
979 : "=r" (sh), "=&r" (sl) \
980 : "r" (ah), "r" (bh), "rI" (al), "r" (bl)); \
981 } while (0)
982 #define count_leading_zeros(count, x) \
983 __asm__ ("cntlzd %0,%1" : "=r" (count) : "r" (x))
984 #define COUNT_LEADING_ZEROS_0 64
985 #define umul_ppmm(ph, pl, m0, m1) \
986 do { \
987 UDItype __m0 = (m0), __m1 = (m1); \
988 __asm__ ("mulhdu %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
989 (pl) = __m0 * __m1; \
990 } while (0)
991 #define UMUL_TIME 15
992 #define smul_ppmm(ph, pl, m0, m1) \
993 do { \
994 DItype __m0 = (m0), __m1 = (m1); \
995 __asm__ ("mulhd %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \
996 (pl) = __m0 * __m1; \
997 } while (0)
998 #define SMUL_TIME 14 /* ??? */
999 #define UDIV_TIME 120 /* ??? */
1000 #endif /* 64-bit PowerPC. */
1001
1002 #if defined (__ibm032__) /* RT/ROMP */ && W_TYPE_SIZE == 32
1003 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1004 __asm__ ("a %1,%5\n\tae %0,%3" \
1005 : "=r" ((USItype) (sh)), \
1006 "=&r" ((USItype) (sl)) \
1007 : "%0" ((USItype) (ah)), \
1008 "r" ((USItype) (bh)), \
1009 "%1" ((USItype) (al)), \
1010 "r" ((USItype) (bl)))
1011 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1012 __asm__ ("s %1,%5\n\tse %0,%3" \
1013 : "=r" ((USItype) (sh)), \
1014 "=&r" ((USItype) (sl)) \
1015 : "0" ((USItype) (ah)), \
1016 "r" ((USItype) (bh)), \
1017 "1" ((USItype) (al)), \
1018 "r" ((USItype) (bl)))
1019 #define umul_ppmm(ph, pl, m0, m1) \
1020 do { \
1021 USItype __m0 = (m0), __m1 = (m1); \
1022 __asm__ ( \
1023 "s r2,r2\n" \
1024 " mts r10,%2\n" \
1025 " m r2,%3\n" \
1026 " m r2,%3\n" \
1027 " m r2,%3\n" \
1028 " m r2,%3\n" \
1029 " m r2,%3\n" \
1030 " m r2,%3\n" \
1031 " m r2,%3\n" \
1032 " m r2,%3\n" \
1033 " m r2,%3\n" \
1034 " m r2,%3\n" \
1035 " m r2,%3\n" \
1036 " m r2,%3\n" \
1037 " m r2,%3\n" \
1038 " m r2,%3\n" \
1039 " m r2,%3\n" \
1040 " m r2,%3\n" \
1041 " cas %0,r2,r0\n" \
1042 " mfs r10,%1" \
1043 : "=r" ((USItype) (ph)), \
1044 "=r" ((USItype) (pl)) \
1045 : "%r" (__m0), \
1046 "r" (__m1) \
1047 : "r2"); \
1048 (ph) += ((((SItype) __m0 >> 31) & __m1) \
1049 + (((SItype) __m1 >> 31) & __m0)); \
1050 } while (0)
1051 #define UMUL_TIME 20
1052 #define UDIV_TIME 200
1053 #define count_leading_zeros(count, x) \
1054 do { \
1055 if ((x) >= 0x10000) \
1056 __asm__ ("clz %0,%1" \
1057 : "=r" ((USItype) (count)) \
1058 : "r" ((USItype) (x) >> 16)); \
1059 else \
1060 { \
1061 __asm__ ("clz %0,%1" \
1062 : "=r" ((USItype) (count)) \
1063 : "r" ((USItype) (x))); \
1064 (count) += 16; \
1065 } \
1066 } while (0)
1067 #endif
1068
1069 #if defined(__sh__) && !__SHMEDIA__ && W_TYPE_SIZE == 32
1070 #ifndef __sh1__
1071 #define umul_ppmm(w1, w0, u, v) \
1072 __asm__ ( \
1073 "dmulu.l %2,%3\n\tsts%M1 macl,%1\n\tsts%M0 mach,%0" \
1074 : "=r<" ((USItype)(w1)), \
1075 "=r<" ((USItype)(w0)) \
1076 : "r" ((USItype)(u)), \
1077 "r" ((USItype)(v)) \
1078 : "macl", "mach")
1079 #define UMUL_TIME 5
1080 #endif
1081
1082 /* This is the same algorithm as __udiv_qrnnd_c. */
1083 #define UDIV_NEEDS_NORMALIZATION 1
1084
1085 #define udiv_qrnnd(q, r, n1, n0, d) \
1086 do { \
1087 extern UWtype __udiv_qrnnd_16 (UWtype, UWtype) \
1088 __attribute__ ((visibility ("hidden"))); \
1089 /* r0: rn r1: qn */ /* r0: n1 r4: n0 r5: d r6: d1 */ /* r2: __m */ \
1090 __asm__ ( \
1091 "mov%M4 %4,r5\n" \
1092 " swap.w %3,r4\n" \
1093 " swap.w r5,r6\n" \
1094 " jsr @%5\n" \
1095 " shll16 r6\n" \
1096 " swap.w r4,r4\n" \
1097 " jsr @%5\n" \
1098 " swap.w r1,%0\n" \
1099 " or r1,%0" \
1100 : "=r" (q), "=&z" (r) \
1101 : "1" (n1), "r" (n0), "rm" (d), "r" (&__udiv_qrnnd_16) \
1102 : "r1", "r2", "r4", "r5", "r6", "pr", "t"); \
1103 } while (0)
1104
1105 #define UDIV_TIME 80
1106
1107 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1108 __asm__ ("clrt;subc %5,%1; subc %4,%0" \
1109 : "=r" (sh), "=r" (sl) \
1110 : "0" (ah), "1" (al), "r" (bh), "r" (bl) : "t")
1111
1112 #endif /* __sh__ */
1113
1114 #if defined (__SH5__) && __SHMEDIA__ && W_TYPE_SIZE == 32
1115 #define __umulsidi3(u,v) ((UDItype)(USItype)u*(USItype)v)
1116 #define count_leading_zeros(count, x) \
1117 do \
1118 { \
1119 UDItype x_ = (USItype)(x); \
1120 SItype c_; \
1121 \
1122 __asm__ ("nsb %1, %0" : "=r" (c_) : "r" (x_)); \
1123 (count) = c_ - 31; \
1124 } \
1125 while (0)
1126 #define COUNT_LEADING_ZEROS_0 32
1127 #endif
1128
1129 #if defined (__sparc__) && !defined (__arch64__) && !defined (__sparcv9) \
1130 && W_TYPE_SIZE == 32
1131 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1132 __asm__ ("addcc %r4,%5,%1\n\taddx %r2,%3,%0" \
1133 : "=r" ((USItype) (sh)), \
1134 "=&r" ((USItype) (sl)) \
1135 : "%rJ" ((USItype) (ah)), \
1136 "rI" ((USItype) (bh)), \
1137 "%rJ" ((USItype) (al)), \
1138 "rI" ((USItype) (bl)) \
1139 __CLOBBER_CC)
1140 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1141 __asm__ ("subcc %r4,%5,%1\n\tsubx %r2,%3,%0" \
1142 : "=r" ((USItype) (sh)), \
1143 "=&r" ((USItype) (sl)) \
1144 : "rJ" ((USItype) (ah)), \
1145 "rI" ((USItype) (bh)), \
1146 "rJ" ((USItype) (al)), \
1147 "rI" ((USItype) (bl)) \
1148 __CLOBBER_CC)
1149 #if defined (__sparc_v9__)
1150 #define umul_ppmm(w1, w0, u, v) \
1151 do { \
1152 register USItype __g1 asm ("g1"); \
1153 __asm__ ("umul\t%2,%3,%1\n\t" \
1154 "srlx\t%1, 32, %0" \
1155 : "=r" ((USItype) (w1)), \
1156 "=r" (__g1) \
1157 : "r" ((USItype) (u)), \
1158 "r" ((USItype) (v))); \
1159 (w0) = __g1; \
1160 } while (0)
1161 #define udiv_qrnnd(__q, __r, __n1, __n0, __d) \
1162 __asm__ ("mov\t%2,%%y\n\t" \
1163 "udiv\t%3,%4,%0\n\t" \
1164 "umul\t%0,%4,%1\n\t" \
1165 "sub\t%3,%1,%1" \
1166 : "=&r" ((USItype) (__q)), \
1167 "=&r" ((USItype) (__r)) \
1168 : "r" ((USItype) (__n1)), \
1169 "r" ((USItype) (__n0)), \
1170 "r" ((USItype) (__d)))
1171 #else
1172 #if defined (__sparc_v8__)
1173 #define umul_ppmm(w1, w0, u, v) \
1174 __asm__ ("umul %2,%3,%1;rd %%y,%0" \
1175 : "=r" ((USItype) (w1)), \
1176 "=r" ((USItype) (w0)) \
1177 : "r" ((USItype) (u)), \
1178 "r" ((USItype) (v)))
1179 #define udiv_qrnnd(__q, __r, __n1, __n0, __d) \
1180 __asm__ ("mov %2,%%y;nop;nop;nop;udiv %3,%4,%0;umul %0,%4,%1;sub %3,%1,%1"\
1181 : "=&r" ((USItype) (__q)), \
1182 "=&r" ((USItype) (__r)) \
1183 : "r" ((USItype) (__n1)), \
1184 "r" ((USItype) (__n0)), \
1185 "r" ((USItype) (__d)))
1186 #else
1187 #if defined (__sparclite__)
1188 /* This has hardware multiply but not divide. It also has two additional
1189 instructions scan (ffs from high bit) and divscc. */
1190 #define umul_ppmm(w1, w0, u, v) \
1191 __asm__ ("umul %2,%3,%1;rd %%y,%0" \
1192 : "=r" ((USItype) (w1)), \
1193 "=r" ((USItype) (w0)) \
1194 : "r" ((USItype) (u)), \
1195 "r" ((USItype) (v)))
1196 #define udiv_qrnnd(q, r, n1, n0, d) \
1197 __asm__ ("! Inlined udiv_qrnnd\n" \
1198 " wr %%g0,%2,%%y ! Not a delayed write for sparclite\n" \
1199 " tst %%g0\n" \
1200 " divscc %3,%4,%%g1\n" \
1201 " divscc %%g1,%4,%%g1\n" \
1202 " divscc %%g1,%4,%%g1\n" \
1203 " divscc %%g1,%4,%%g1\n" \
1204 " divscc %%g1,%4,%%g1\n" \
1205 " divscc %%g1,%4,%%g1\n" \
1206 " divscc %%g1,%4,%%g1\n" \
1207 " divscc %%g1,%4,%%g1\n" \
1208 " divscc %%g1,%4,%%g1\n" \
1209 " divscc %%g1,%4,%%g1\n" \
1210 " divscc %%g1,%4,%%g1\n" \
1211 " divscc %%g1,%4,%%g1\n" \
1212 " divscc %%g1,%4,%%g1\n" \
1213 " divscc %%g1,%4,%%g1\n" \
1214 " divscc %%g1,%4,%%g1\n" \
1215 " divscc %%g1,%4,%%g1\n" \
1216 " divscc %%g1,%4,%%g1\n" \
1217 " divscc %%g1,%4,%%g1\n" \
1218 " divscc %%g1,%4,%%g1\n" \
1219 " divscc %%g1,%4,%%g1\n" \
1220 " divscc %%g1,%4,%%g1\n" \
1221 " divscc %%g1,%4,%%g1\n" \
1222 " divscc %%g1,%4,%%g1\n" \
1223 " divscc %%g1,%4,%%g1\n" \
1224 " divscc %%g1,%4,%%g1\n" \
1225 " divscc %%g1,%4,%%g1\n" \
1226 " divscc %%g1,%4,%%g1\n" \
1227 " divscc %%g1,%4,%%g1\n" \
1228 " divscc %%g1,%4,%%g1\n" \
1229 " divscc %%g1,%4,%%g1\n" \
1230 " divscc %%g1,%4,%%g1\n" \
1231 " divscc %%g1,%4,%0\n" \
1232 " rd %%y,%1\n" \
1233 " bl,a 1f\n" \
1234 " add %1,%4,%1\n" \
1235 "1: ! End of inline udiv_qrnnd" \
1236 : "=r" ((USItype) (q)), \
1237 "=r" ((USItype) (r)) \
1238 : "r" ((USItype) (n1)), \
1239 "r" ((USItype) (n0)), \
1240 "rI" ((USItype) (d)) \
1241 : "g1" __AND_CLOBBER_CC)
1242 #define UDIV_TIME 37
1243 #define count_leading_zeros(count, x) \
1244 do { \
1245 __asm__ ("scan %1,1,%0" \
1246 : "=r" ((USItype) (count)) \
1247 : "r" ((USItype) (x))); \
1248 } while (0)
1249 /* Early sparclites return 63 for an argument of 0, but they warn that future
1250 implementations might change this. Therefore, leave COUNT_LEADING_ZEROS_0
1251 undefined. */
1252 #else
1253 /* SPARC without integer multiplication and divide instructions.
1254 (i.e. at least Sun4/20,40,60,65,75,110,260,280,330,360,380,470,490) */
1255 #define umul_ppmm(w1, w0, u, v) \
1256 __asm__ ("! Inlined umul_ppmm\n" \
1257 " wr %%g0,%2,%%y ! SPARC has 0-3 delay insn after a wr\n"\
1258 " sra %3,31,%%o5 ! Don't move this insn\n" \
1259 " and %2,%%o5,%%o5 ! Don't move this insn\n" \
1260 " andcc %%g0,0,%%g1 ! Don't move this insn\n" \
1261 " mulscc %%g1,%3,%%g1\n" \
1262 " mulscc %%g1,%3,%%g1\n" \
1263 " mulscc %%g1,%3,%%g1\n" \
1264 " mulscc %%g1,%3,%%g1\n" \
1265 " mulscc %%g1,%3,%%g1\n" \
1266 " mulscc %%g1,%3,%%g1\n" \
1267 " mulscc %%g1,%3,%%g1\n" \
1268 " mulscc %%g1,%3,%%g1\n" \
1269 " mulscc %%g1,%3,%%g1\n" \
1270 " mulscc %%g1,%3,%%g1\n" \
1271 " mulscc %%g1,%3,%%g1\n" \
1272 " mulscc %%g1,%3,%%g1\n" \
1273 " mulscc %%g1,%3,%%g1\n" \
1274 " mulscc %%g1,%3,%%g1\n" \
1275 " mulscc %%g1,%3,%%g1\n" \
1276 " mulscc %%g1,%3,%%g1\n" \
1277 " mulscc %%g1,%3,%%g1\n" \
1278 " mulscc %%g1,%3,%%g1\n" \
1279 " mulscc %%g1,%3,%%g1\n" \
1280 " mulscc %%g1,%3,%%g1\n" \
1281 " mulscc %%g1,%3,%%g1\n" \
1282 " mulscc %%g1,%3,%%g1\n" \
1283 " mulscc %%g1,%3,%%g1\n" \
1284 " mulscc %%g1,%3,%%g1\n" \
1285 " mulscc %%g1,%3,%%g1\n" \
1286 " mulscc %%g1,%3,%%g1\n" \
1287 " mulscc %%g1,%3,%%g1\n" \
1288 " mulscc %%g1,%3,%%g1\n" \
1289 " mulscc %%g1,%3,%%g1\n" \
1290 " mulscc %%g1,%3,%%g1\n" \
1291 " mulscc %%g1,%3,%%g1\n" \
1292 " mulscc %%g1,%3,%%g1\n" \
1293 " mulscc %%g1,0,%%g1\n" \
1294 " add %%g1,%%o5,%0\n" \
1295 " rd %%y,%1" \
1296 : "=r" ((USItype) (w1)), \
1297 "=r" ((USItype) (w0)) \
1298 : "%rI" ((USItype) (u)), \
1299 "r" ((USItype) (v)) \
1300 : "g1", "o5" __AND_CLOBBER_CC)
1301 #define UMUL_TIME 39 /* 39 instructions */
1302 /* It's quite necessary to add this much assembler for the sparc.
1303 The default udiv_qrnnd (in C) is more than 10 times slower! */
1304 #define udiv_qrnnd(__q, __r, __n1, __n0, __d) \
1305 __asm__ ("! Inlined udiv_qrnnd\n" \
1306 " mov 32,%%g1\n" \
1307 " subcc %1,%2,%%g0\n" \
1308 "1: bcs 5f\n" \
1309 " addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n" \
1310 " sub %1,%2,%1 ! this kills msb of n\n" \
1311 " addx %1,%1,%1 ! so this can't give carry\n" \
1312 " subcc %%g1,1,%%g1\n" \
1313 "2: bne 1b\n" \
1314 " subcc %1,%2,%%g0\n" \
1315 " bcs 3f\n" \
1316 " addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n" \
1317 " b 3f\n" \
1318 " sub %1,%2,%1 ! this kills msb of n\n" \
1319 "4: sub %1,%2,%1\n" \
1320 "5: addxcc %1,%1,%1\n" \
1321 " bcc 2b\n" \
1322 " subcc %%g1,1,%%g1\n" \
1323 "! Got carry from n. Subtract next step to cancel this carry.\n" \
1324 " bne 4b\n" \
1325 " addcc %0,%0,%0 ! shift n1n0 and a 0-bit in lsb\n" \
1326 " sub %1,%2,%1\n" \
1327 "3: xnor %0,0,%0\n" \
1328 " ! End of inline udiv_qrnnd" \
1329 : "=&r" ((USItype) (__q)), \
1330 "=&r" ((USItype) (__r)) \
1331 : "r" ((USItype) (__d)), \
1332 "1" ((USItype) (__n1)), \
1333 "0" ((USItype) (__n0)) : "g1" __AND_CLOBBER_CC)
1334 #define UDIV_TIME (3+7*32) /* 7 instructions/iteration. 32 iterations. */
1335 #endif /* __sparclite__ */
1336 #endif /* __sparc_v8__ */
1337 #endif /* __sparc_v9__ */
1338 #endif /* sparc32 */
1339
1340 #if ((defined (__sparc__) && defined (__arch64__)) || defined (__sparcv9)) \
1341 && W_TYPE_SIZE == 64
1342 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1343 do { \
1344 UDItype __carry = 0; \
1345 __asm__ ("addcc\t%r5,%6,%1\n\t" \
1346 "add\t%r3,%4,%0\n\t" \
1347 "movcs\t%%xcc, 1, %2\n\t" \
1348 "add\t%0, %2, %0" \
1349 : "=r" ((UDItype)(sh)), \
1350 "=&r" ((UDItype)(sl)), \
1351 "+r" (__carry) \
1352 : "%rJ" ((UDItype)(ah)), \
1353 "rI" ((UDItype)(bh)), \
1354 "%rJ" ((UDItype)(al)), \
1355 "rI" ((UDItype)(bl)) \
1356 __CLOBBER_CC); \
1357 } while (0)
1358
1359 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1360 do { \
1361 UDItype __carry = 0; \
1362 __asm__ ("subcc\t%r5,%6,%1\n\t" \
1363 "sub\t%r3,%4,%0\n\t" \
1364 "movcs\t%%xcc, 1, %2\n\t" \
1365 "sub\t%0, %2, %0" \
1366 : "=r" ((UDItype)(sh)), \
1367 "=&r" ((UDItype)(sl)), \
1368 "+r" (__carry) \
1369 : "%rJ" ((UDItype)(ah)), \
1370 "rI" ((UDItype)(bh)), \
1371 "%rJ" ((UDItype)(al)), \
1372 "rI" ((UDItype)(bl)) \
1373 __CLOBBER_CC); \
1374 } while (0)
1375
1376 #define umul_ppmm(wh, wl, u, v) \
1377 do { \
1378 UDItype tmp1, tmp2, tmp3, tmp4; \
1379 __asm__ __volatile__ ( \
1380 "srl %7,0,%3\n\t" \
1381 "mulx %3,%6,%1\n\t" \
1382 "srlx %6,32,%2\n\t" \
1383 "mulx %2,%3,%4\n\t" \
1384 "sllx %4,32,%5\n\t" \
1385 "srl %6,0,%3\n\t" \
1386 "sub %1,%5,%5\n\t" \
1387 "srlx %5,32,%5\n\t" \
1388 "addcc %4,%5,%4\n\t" \
1389 "srlx %7,32,%5\n\t" \
1390 "mulx %3,%5,%3\n\t" \
1391 "mulx %2,%5,%5\n\t" \
1392 "sethi %%hi(0x80000000),%2\n\t" \
1393 "addcc %4,%3,%4\n\t" \
1394 "srlx %4,32,%4\n\t" \
1395 "add %2,%2,%2\n\t" \
1396 "movcc %%xcc,%%g0,%2\n\t" \
1397 "addcc %5,%4,%5\n\t" \
1398 "sllx %3,32,%3\n\t" \
1399 "add %1,%3,%1\n\t" \
1400 "add %5,%2,%0" \
1401 : "=r" ((UDItype)(wh)), \
1402 "=&r" ((UDItype)(wl)), \
1403 "=&r" (tmp1), "=&r" (tmp2), "=&r" (tmp3), "=&r" (tmp4) \
1404 : "r" ((UDItype)(u)), \
1405 "r" ((UDItype)(v)) \
1406 __CLOBBER_CC); \
1407 } while (0)
1408 #define UMUL_TIME 96
1409 #define UDIV_TIME 230
1410 #endif /* sparc64 */
1411
1412 #if defined (__vax__) && W_TYPE_SIZE == 32
1413 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1414 __asm__ ("addl2 %5,%1\n\tadwc %3,%0" \
1415 : "=g" ((USItype) (sh)), \
1416 "=&g" ((USItype) (sl)) \
1417 : "%0" ((USItype) (ah)), \
1418 "g" ((USItype) (bh)), \
1419 "%1" ((USItype) (al)), \
1420 "g" ((USItype) (bl)))
1421 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1422 __asm__ ("subl2 %5,%1\n\tsbwc %3,%0" \
1423 : "=g" ((USItype) (sh)), \
1424 "=&g" ((USItype) (sl)) \
1425 : "0" ((USItype) (ah)), \
1426 "g" ((USItype) (bh)), \
1427 "1" ((USItype) (al)), \
1428 "g" ((USItype) (bl)))
1429 #define umul_ppmm(xh, xl, m0, m1) \
1430 do { \
1431 union { \
1432 UDItype __ll; \
1433 struct {USItype __l, __h;} __i; \
1434 } __xx; \
1435 USItype __m0 = (m0), __m1 = (m1); \
1436 __asm__ ("emul %1,%2,$0,%0" \
1437 : "=r" (__xx.__ll) \
1438 : "g" (__m0), \
1439 "g" (__m1)); \
1440 (xh) = __xx.__i.__h; \
1441 (xl) = __xx.__i.__l; \
1442 (xh) += ((((SItype) __m0 >> 31) & __m1) \
1443 + (((SItype) __m1 >> 31) & __m0)); \
1444 } while (0)
1445 #define sdiv_qrnnd(q, r, n1, n0, d) \
1446 do { \
1447 union {DItype __ll; \
1448 struct {SItype __l, __h;} __i; \
1449 } __xx; \
1450 __xx.__i.__h = n1; __xx.__i.__l = n0; \
1451 __asm__ ("ediv %3,%2,%0,%1" \
1452 : "=g" (q), "=g" (r) \
1453 : "g" (__xx.__ll), "g" (d)); \
1454 } while (0)
1455 #endif /* __vax__ */
1456
1457 #ifdef _TMS320C6X
1458 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1459 do \
1460 { \
1461 UDItype __ll; \
1462 __asm__ ("addu .l1 %1, %2, %0" \
1463 : "=a" (__ll) : "a" (al), "a" (bl)); \
1464 (sl) = (USItype)__ll; \
1465 (sh) = ((USItype)(__ll >> 32)) + (ah) + (bh); \
1466 } \
1467 while (0)
1468
1469 #ifdef _TMS320C6400_PLUS
1470 #define __umulsidi3(u,v) ((UDItype)(USItype)u*(USItype)v)
1471 #define umul_ppmm(w1, w0, u, v) \
1472 do { \
1473 UDItype __x = (UDItype) (USItype) (u) * (USItype) (v); \
1474 (w1) = (USItype) (__x >> 32); \
1475 (w0) = (USItype) (__x); \
1476 } while (0)
1477 #endif /* _TMS320C6400_PLUS */
1478
1479 #define count_leading_zeros(count, x) ((count) = __builtin_clz (x))
1480 #ifdef _TMS320C6400
1481 #define count_trailing_zeros(count, x) ((count) = __builtin_ctz (x))
1482 #endif
1483 #define UMUL_TIME 4
1484 #define UDIV_TIME 40
1485 #endif /* _TMS320C6X */
1486
1487 #if defined (__xtensa__) && W_TYPE_SIZE == 32
1488 /* This code is not Xtensa-configuration-specific, so rely on the compiler
1489 to expand builtin functions depending on what configuration features
1490 are available. This avoids library calls when the operation can be
1491 performed in-line. */
1492 #define umul_ppmm(w1, w0, u, v) \
1493 do { \
1494 DWunion __w; \
1495 __w.ll = __builtin_umulsidi3 (u, v); \
1496 w1 = __w.s.high; \
1497 w0 = __w.s.low; \
1498 } while (0)
1499 #define __umulsidi3(u, v) __builtin_umulsidi3 (u, v)
1500 #define count_leading_zeros(COUNT, X) ((COUNT) = __builtin_clz (X))
1501 #define count_trailing_zeros(COUNT, X) ((COUNT) = __builtin_ctz (X))
1502 #endif /* __xtensa__ */
1503
1504 #if defined xstormy16
1505 extern UHItype __stormy16_count_leading_zeros (UHItype);
1506 #define count_leading_zeros(count, x) \
1507 do \
1508 { \
1509 UHItype size; \
1510 \
1511 /* We assume that W_TYPE_SIZE is a multiple of 16... */ \
1512 for ((count) = 0, size = W_TYPE_SIZE; size; size -= 16) \
1513 { \
1514 UHItype c; \
1515 \
1516 c = __clzhi2 ((x) >> (size - 16)); \
1517 (count) += c; \
1518 if (c != 16) \
1519 break; \
1520 } \
1521 } \
1522 while (0)
1523 #define COUNT_LEADING_ZEROS_0 W_TYPE_SIZE
1524 #endif
1525
1526 #if defined (__z8000__) && W_TYPE_SIZE == 16
1527 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1528 __asm__ ("add %H1,%H5\n\tadc %H0,%H3" \
1529 : "=r" ((unsigned int)(sh)), \
1530 "=&r" ((unsigned int)(sl)) \
1531 : "%0" ((unsigned int)(ah)), \
1532 "r" ((unsigned int)(bh)), \
1533 "%1" ((unsigned int)(al)), \
1534 "rQR" ((unsigned int)(bl)))
1535 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1536 __asm__ ("sub %H1,%H5\n\tsbc %H0,%H3" \
1537 : "=r" ((unsigned int)(sh)), \
1538 "=&r" ((unsigned int)(sl)) \
1539 : "0" ((unsigned int)(ah)), \
1540 "r" ((unsigned int)(bh)), \
1541 "1" ((unsigned int)(al)), \
1542 "rQR" ((unsigned int)(bl)))
1543 #define umul_ppmm(xh, xl, m0, m1) \
1544 do { \
1545 union {long int __ll; \
1546 struct {unsigned int __h, __l;} __i; \
1547 } __xx; \
1548 unsigned int __m0 = (m0), __m1 = (m1); \
1549 __asm__ ("mult %S0,%H3" \
1550 : "=r" (__xx.__i.__h), \
1551 "=r" (__xx.__i.__l) \
1552 : "%1" (__m0), \
1553 "rQR" (__m1)); \
1554 (xh) = __xx.__i.__h; (xl) = __xx.__i.__l; \
1555 (xh) += ((((signed int) __m0 >> 15) & __m1) \
1556 + (((signed int) __m1 >> 15) & __m0)); \
1557 } while (0)
1558 #endif /* __z8000__ */
1559
1560 #endif /* __GNUC__ */
1561
1562 /* If this machine has no inline assembler, use C macros. */
1563
1564 #if !defined (add_ssaaaa)
1565 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1566 do { \
1567 UWtype __x; \
1568 __x = (al) + (bl); \
1569 (sh) = (ah) + (bh) + (__x < (al)); \
1570 (sl) = __x; \
1571 } while (0)
1572 #endif
1573
1574 #if !defined (sub_ddmmss)
1575 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1576 do { \
1577 UWtype __x; \
1578 __x = (al) - (bl); \
1579 (sh) = (ah) - (bh) - (__x > (al)); \
1580 (sl) = __x; \
1581 } while (0)
1582 #endif
1583
1584 /* If we lack umul_ppmm but have smul_ppmm, define umul_ppmm in terms of
1585 smul_ppmm. */
1586 #if !defined (umul_ppmm) && defined (smul_ppmm)
1587 #define umul_ppmm(w1, w0, u, v) \
1588 do { \
1589 UWtype __w1; \
1590 UWtype __xm0 = (u), __xm1 = (v); \
1591 smul_ppmm (__w1, w0, __xm0, __xm1); \
1592 (w1) = __w1 + (-(__xm0 >> (W_TYPE_SIZE - 1)) & __xm1) \
1593 + (-(__xm1 >> (W_TYPE_SIZE - 1)) & __xm0); \
1594 } while (0)
1595 #endif
1596
1597 /* If we still don't have umul_ppmm, define it using plain C. */
1598 #if !defined (umul_ppmm)
1599 #define umul_ppmm(w1, w0, u, v) \
1600 do { \
1601 UWtype __x0, __x1, __x2, __x3; \
1602 UHWtype __ul, __vl, __uh, __vh; \
1603 \
1604 __ul = __ll_lowpart (u); \
1605 __uh = __ll_highpart (u); \
1606 __vl = __ll_lowpart (v); \
1607 __vh = __ll_highpart (v); \
1608 \
1609 __x0 = (UWtype) __ul * __vl; \
1610 __x1 = (UWtype) __ul * __vh; \
1611 __x2 = (UWtype) __uh * __vl; \
1612 __x3 = (UWtype) __uh * __vh; \
1613 \
1614 __x1 += __ll_highpart (__x0);/* this can't give carry */ \
1615 __x1 += __x2; /* but this indeed can */ \
1616 if (__x1 < __x2) /* did we get it? */ \
1617 __x3 += __ll_B; /* yes, add it in the proper pos. */ \
1618 \
1619 (w1) = __x3 + __ll_highpart (__x1); \
1620 (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \
1621 } while (0)
1622 #endif
1623
1624 #if !defined (__umulsidi3)
1625 #define __umulsidi3(u, v) \
1626 ({DWunion __w; \
1627 umul_ppmm (__w.s.high, __w.s.low, u, v); \
1628 __w.ll; })
1629 #endif
1630
1631 /* Define this unconditionally, so it can be used for debugging. */
1632 #define __udiv_qrnnd_c(q, r, n1, n0, d) \
1633 do { \
1634 UWtype __d1, __d0, __q1, __q0; \
1635 UWtype __r1, __r0, __m; \
1636 __d1 = __ll_highpart (d); \
1637 __d0 = __ll_lowpart (d); \
1638 \
1639 __r1 = (n1) % __d1; \
1640 __q1 = (n1) / __d1; \
1641 __m = (UWtype) __q1 * __d0; \
1642 __r1 = __r1 * __ll_B | __ll_highpart (n0); \
1643 if (__r1 < __m) \
1644 { \
1645 __q1--, __r1 += (d); \
1646 if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */\
1647 if (__r1 < __m) \
1648 __q1--, __r1 += (d); \
1649 } \
1650 __r1 -= __m; \
1651 \
1652 __r0 = __r1 % __d1; \
1653 __q0 = __r1 / __d1; \
1654 __m = (UWtype) __q0 * __d0; \
1655 __r0 = __r0 * __ll_B | __ll_lowpart (n0); \
1656 if (__r0 < __m) \
1657 { \
1658 __q0--, __r0 += (d); \
1659 if (__r0 >= (d)) \
1660 if (__r0 < __m) \
1661 __q0--, __r0 += (d); \
1662 } \
1663 __r0 -= __m; \
1664 \
1665 (q) = (UWtype) __q1 * __ll_B | __q0; \
1666 (r) = __r0; \
1667 } while (0)
1668
1669 /* If the processor has no udiv_qrnnd but sdiv_qrnnd, go through
1670 __udiv_w_sdiv (defined in libgcc or elsewhere). */
1671 #if !defined (udiv_qrnnd) && defined (sdiv_qrnnd)
1672 #define udiv_qrnnd(q, r, nh, nl, d) \
1673 do { \
1674 USItype __r; \
1675 (q) = __udiv_w_sdiv (&__r, nh, nl, d); \
1676 (r) = __r; \
1677 } while (0)
1678 #endif
1679
1680 /* If udiv_qrnnd was not defined for this processor, use __udiv_qrnnd_c. */
1681 #if !defined (udiv_qrnnd)
1682 #define UDIV_NEEDS_NORMALIZATION 1
1683 #define udiv_qrnnd __udiv_qrnnd_c
1684 #endif
1685
1686 #if !defined (count_leading_zeros)
1687 #define count_leading_zeros(count, x) \
1688 do { \
1689 UWtype __xr = (x); \
1690 UWtype __a; \
1691 \
1692 if (W_TYPE_SIZE <= 32) \
1693 { \
1694 __a = __xr < ((UWtype)1<<2*__BITS4) \
1695 ? (__xr < ((UWtype)1<<__BITS4) ? 0 : __BITS4) \
1696 : (__xr < ((UWtype)1<<3*__BITS4) ? 2*__BITS4 : 3*__BITS4); \
1697 } \
1698 else \
1699 { \
1700 for (__a = W_TYPE_SIZE - 8; __a > 0; __a -= 8) \
1701 if (((__xr >> __a) & 0xff) != 0) \
1702 break; \
1703 } \
1704 \
1705 (count) = W_TYPE_SIZE - (__clz_tab[__xr >> __a] + __a); \
1706 } while (0)
1707 #define COUNT_LEADING_ZEROS_0 W_TYPE_SIZE
1708 #endif
1709
1710 #if !defined (count_trailing_zeros)
1711 /* Define count_trailing_zeros using count_leading_zeros. The latter might be
1712 defined in asm, but if it is not, the C version above is good enough. */
1713 #define count_trailing_zeros(count, x) \
1714 do { \
1715 UWtype __ctz_x = (x); \
1716 UWtype __ctz_c; \
1717 count_leading_zeros (__ctz_c, __ctz_x & -__ctz_x); \
1718 (count) = W_TYPE_SIZE - 1 - __ctz_c; \
1719 } while (0)
1720 #endif
1721
1722 #ifndef UDIV_NEEDS_NORMALIZATION
1723 #define UDIV_NEEDS_NORMALIZATION 0
1724 #endif
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