gcc/longlong.h

   1 /* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
   2    Copyright (C) 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000
   3    Free Software Foundation, Inc.
   4
   5    This definition file is free software; you can redistribute it
   6    and/or modify it under the terms of the GNU General Public
   7    License as published by the Free Software Foundation; either
   8    version 2, or (at your option) any later version.
   9
  10    This definition file is distributed in the hope that it will be
  11    useful, but WITHOUT ANY WARRANTY; without even the implied
  12    warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  13    See the GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, write to the Free Software
  17    Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  20 /* You have to define the following before including this file:
  21
  22    UWtype -- An unsigned type, default type for operations (typically a "word")
  23    UHWtype -- An unsigned type, at least half the size of UWtype.
  24    UDWtype -- An unsigned type, at least twice as large a UWtype
  25    W_TYPE_SIZE -- size in bits of UWtype
  26
  27    UQItype -- Unsigned 8 bit type.
  28    SItype, USItype -- Signed and unsigned 32 bit types.
  29    DItype, UDItype -- Signed and unsigned 64 bit types.
  30
  31    On a 32 bit machine UWtype should typically be USItype;
  32    on a 64 bit machine, UWtype should typically be UDItype.
  33 */
  34
  35 #define __BITS4 (W_TYPE_SIZE / 4)
  36 #define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2))
  37 #define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1))
  38 #define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2))
  39
  40 #ifndef W_TYPE_SIZE
  41 #define W_TYPE_SIZE     32
  42 #define UWtype          USItype
  43 #define UHWtype         USItype
  44 #define UDWtype         UDItype
  45 #endif
  46
  47 /* Define auxiliary asm macros.
  48
  49    1) umul_ppmm(high_prod, low_prod, multipler, multiplicand) multiplies two
  50    UWtype integers MULTIPLER and MULTIPLICAND, and generates a two UWtype
  51    word product in HIGH_PROD and LOW_PROD.
  52
  53    2) __umulsidi3(a,b) multiplies two UWtype integers A and B, and returns a
  54    UDWtype product.  This is just a variant of umul_ppmm.
  55
  56    3) udiv_qrnnd(quotient, remainder, high_numerator, low_numerator,
  57    denominator) divides a UDWtype, composed by the UWtype integers
  58    HIGH_NUMERATOR and LOW_NUMERATOR, by DENOMINATOR and places the quotient
  59    in QUOTIENT and the remainder in REMAINDER.  HIGH_NUMERATOR must be less
  60    than DENOMINATOR for correct operation.  If, in addition, the most
  61    significant bit of DENOMINATOR must be 1, then the pre-processor symbol
  62    UDIV_NEEDS_NORMALIZATION is defined to 1.
  63
  64    4) sdiv_qrnnd(quotient, remainder, high_numerator, low_numerator,
  65    denominator).  Like udiv_qrnnd but the numbers are signed.  The quotient
  66    is rounded towards 0.
  67
  68    5) count_leading_zeros(count, x) counts the number of zero-bits from the
  69    msb to the first nonzero bit in the UWtype X.  This is the number of
  70    steps X needs to be shifted left to set the msb.  Undefined for X == 0,
  71    unless the symbol COUNT_LEADING_ZEROS_0 is defined to some value.
  72
  73    6) count_trailing_zeros(count, x) like count_leading_zeros, but counts
  74    from the least significant end.
  75
  76    7) add_ssaaaa(high_sum, low_sum, high_addend_1, low_addend_1,
  77    high_addend_2, low_addend_2) adds two UWtype integers, composed by
  78    HIGH_ADDEND_1 and LOW_ADDEND_1, and HIGH_ADDEND_2 and LOW_ADDEND_2
  79    respectively.  The result is placed in HIGH_SUM and LOW_SUM.  Overflow
  80    (i.e. carry out) is not stored anywhere, and is lost.
  81
  82    8) sub_ddmmss(high_difference, low_difference, high_minuend, low_minuend,
  83    high_subtrahend, low_subtrahend) subtracts two two-word UWtype integers,
  84    composed by HIGH_MINUEND_1 and LOW_MINUEND_1, and HIGH_SUBTRAHEND_2 and
  85    LOW_SUBTRAHEND_2 respectively.  The result is placed in HIGH_DIFFERENCE
  86    and LOW_DIFFERENCE.  Overflow (i.e. carry out) is not stored anywhere,
  87    and is lost.
  88
  89    If any of these macros are left undefined for a particular CPU,
  90    C macros are used.  */
  91
  92 /* The CPUs come in alphabetical order below.
  93
  94    Please add support for more CPUs here, or improve the current support
  95    for the CPUs below!
  96    (E.g. WE32100, IBM360.)  */
  97
  98 #if defined (__GNUC__) && !defined (NO_ASM)
  99
 100 /* We sometimes need to clobber "cc" with gcc2, but that would not be
 101    understood by gcc1.  Use cpp to avoid major code duplication.  */
 102 #if __GNUC__ < 2
 103 #define __CLOBBER_CC
 104 #define __AND_CLOBBER_CC
 105 #else /* __GNUC__ >= 2 */
 106 #define __CLOBBER_CC : "cc"
 107 #define __AND_CLOBBER_CC , "cc"
 108 #endif /* __GNUC__ < 2 */
 109
 110 #if defined (__alpha) && W_TYPE_SIZE == 64
 111 #define umul_ppmm(ph, pl, m0, m1) \
 112   do {                                                                  \
 113     UDItype __m0 = (m0), __m1 = (m1);                                   \
 114     (ph) = __builtin_alpha_umulh (__m0, __m1);                          \
 115     (pl) = __m0 * __m1;                                                 \
 116   } while (0)
 117 #define UMUL_TIME 46
 118 #ifndef LONGLONG_STANDALONE
 119 #define udiv_qrnnd(q, r, n1, n0, d) \
 120   do { UDItype __r;                                                     \
 121     (q) = __udiv_qrnnd (&__r, (n1), (n0), (d));                         \
 122     (r) = __r;                                                          \
 123   } while (0)
 124 extern UDItype __udiv_qrnnd (UDItype *, UDItype, UDItype, UDItype);
 125 #define UDIV_TIME 220
 126 #endif /* LONGLONG_STANDALONE */
 127 #ifdef __alpha_cix__
 128 #define count_leading_zeros(COUNT,X)    ((COUNT) = __builtin_clzl (X))
 129 #define count_trailing_zeros(COUNT,X)   ((COUNT) = __builtin_ctzl (X))
 130 #define COUNT_LEADING_ZEROS_0 64
 131 #else
 132 extern const UQItype __clz_tab[] ATTRIBUTE_HIDDEN;
 133 #define count_leading_zeros(COUNT,X) \
 134   do {                                                                  \
 135     UDItype __xr = (X), __t, __a;                                       \
 136     __t = __builtin_alpha_cmpbge (0, __xr);                             \
 137     __a = __clz_tab[__t ^ 0xff] - 1;                                    \
 138     __t = __builtin_alpha_extbl (__xr, __a);                            \
 139     (COUNT) = 64 - (__clz_tab[__t] + __a*8);                            \
 140   } while (0)
 141 #define count_trailing_zeros(COUNT,X) \
 142   do {                                                                  \
 143     UDItype __xr = (X), __t, __a;                                       \
 144     __t = __builtin_alpha_cmpbge (0, __xr);                             \
 145     __t = ~__t & -~__t;                                                 \
 146     __a = ((__t & 0xCC) != 0) * 2;                                      \
 147     __a += ((__t & 0xF0) != 0) * 4;                                     \
 148     __a += ((__t & 0xAA) != 0);                                         \
 149     __t = __builtin_alpha_extbl (__xr, __a);                            \
 150     __a <<= 3;                                                          \
 151     __t &= -__t;                                                        \
 152     __a += ((__t & 0xCC) != 0) * 2;                                     \
 153     __a += ((__t & 0xF0) != 0) * 4;                                     \
 154     __a += ((__t & 0xAA) != 0);                                         \
 155     (COUNT) = __a;                                                      \
 156   } while (0)
 157 #endif /* __alpha_cix__ */
 158 #endif /* __alpha */
 159
 160 #if defined (__arc__) && W_TYPE_SIZE == 32
 161 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 162   __asm__ ("add.f       %1, %4, %5\n\tadc       %0, %2, %3"             \
 163            : "=r" ((USItype) (sh)),                                     \
 164              "=&r" ((USItype) (sl))                                     \
 165            : "%r" ((USItype) (ah)),                                     \
 166              "rIJ" ((USItype) (bh)),                                    \
 167              "%r" ((USItype) (al)),                                     \
 168              "rIJ" ((USItype) (bl)))
 169 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 170   __asm__ ("sub.f       %1, %4, %5\n\tsbc       %0, %2, %3"             \
 171            : "=r" ((USItype) (sh)),                                     \
 172              "=&r" ((USItype) (sl))                                     \
 173            : "r" ((USItype) (ah)),                                      \
 174              "rIJ" ((USItype) (bh)),                                    \
 175              "r" ((USItype) (al)),                                      \
 176              "rIJ" ((USItype) (bl)))
 177 /* Call libgcc routine.  */
 178 #define umul_ppmm(w1, w0, u, v) \
 179 do {                                                                    \
 180   DWunion __w;                                                          \
 181   __w.ll = __umulsidi3 (u, v);                                          \
 182   w1 = __w.s.high;                                                      \
 183   w0 = __w.s.low;                                                       \
 184 } while (0)
 185 #define __umulsidi3 __umulsidi3
 186 UDItype __umulsidi3 (USItype, USItype);
 187 #endif
 188
 189 #if defined (__arm__) && W_TYPE_SIZE == 32
 190 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 191   __asm__ ("adds        %1, %4, %5\n\tadc       %0, %2, %3"             \
 192            : "=r" ((USItype) (sh)),                                     \
 193              "=&r" ((USItype) (sl))                                     \
 194            : "%r" ((USItype) (ah)),                                     \
 195              "rI" ((USItype) (bh)),                                     \
 196              "%r" ((USItype) (al)),                                     \
 197              "rI" ((USItype) (bl)))
 198 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 199   __asm__ ("subs        %1, %4, %5\n\tsbc       %0, %2, %3"             \
 200            : "=r" ((USItype) (sh)),                                     \
 201              "=&r" ((USItype) (sl))                                     \
 202            : "r" ((USItype) (ah)),                                      \
 203              "rI" ((USItype) (bh)),                                     \
 204              "r" ((USItype) (al)),                                      \
 205              "rI" ((USItype) (bl)))
 206 #define umul_ppmm(xh, xl, a, b) \
 207 {register USItype __t0, __t1, __t2;                                     \
 208   __asm__ ("%@ Inlined umul_ppmm\n"                                     \
 209            "    mov     %2, %5, lsr #16\n"                              \
 210            "    mov     %0, %6, lsr #16\n"                              \
 211            "    bic     %3, %5, %2, lsl #16\n"                          \
 212            "    bic     %4, %6, %0, lsl #16\n"                          \
 213            "    mul     %1, %3, %4\n"                                   \
 214            "    mul     %4, %2, %4\n"                                   \
 215            "    mul     %3, %0, %3\n"                                   \
 216            "    mul     %0, %2, %0\n"                                   \
 217            "    adds    %3, %4, %3\n"                                   \
 218            "    addcs   %0, %0, #65536\n"                               \
 219            "    adds    %1, %1, %3, lsl #16\n"                          \
 220            "    adc     %0, %0, %3, lsr #16"                            \
 221            : "=&r" ((USItype) (xh)),                                    \
 222              "=r" ((USItype) (xl)),                                     \
 223              "=&r" (__t0), "=&r" (__t1), "=r" (__t2)                    \
 224            : "r" ((USItype) (a)),                                       \
 225              "r" ((USItype) (b)));}
 226 #define UMUL_TIME 20
 227 #define UDIV_TIME 100
 228 #endif /* __arm__ */
 229
 230 #if defined (__hppa) && W_TYPE_SIZE == 32
 231 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 232   __asm__ ("add %4,%5,%1\n\taddc %2,%3,%0"                              \
 233            : "=r" ((USItype) (sh)),                                     \
 234              "=&r" ((USItype) (sl))                                     \
 235            : "%rM" ((USItype) (ah)),                                    \
 236              "rM" ((USItype) (bh)),                                     \
 237              "%rM" ((USItype) (al)),                                    \
 238              "rM" ((USItype) (bl)))
 239 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 240   __asm__ ("sub %4,%5,%1\n\tsubb %2,%3,%0"                              \
 241            : "=r" ((USItype) (sh)),                                     \
 242              "=&r" ((USItype) (sl))                                     \
 243            : "rM" ((USItype) (ah)),                                     \
 244              "rM" ((USItype) (bh)),                                     \
 245              "rM" ((USItype) (al)),                                     \
 246              "rM" ((USItype) (bl)))
 247 #if defined (_PA_RISC1_1)
 248 #define umul_ppmm(w1, w0, u, v) \
 249   do {                                                                  \
 250     union                                                               \
 251       {                                                                 \
 252         UDItype __f;                                                    \
 253         struct {USItype __w1, __w0;} __w1w0;                            \
 254       } __t;                                                            \
 255     __asm__ ("xmpyu %1,%2,%0"                                           \
 256              : "=x" (__t.__f)                                           \
 257              : "x" ((USItype) (u)),                                     \
 258                "x" ((USItype) (v)));                                    \
 259     (w1) = __t.__w1w0.__w1;                                             \
 260     (w0) = __t.__w1w0.__w0;                                             \
 261      } while (0)
 262 #define UMUL_TIME 8
 263 #else
 264 #define UMUL_TIME 30
 265 #endif
 266 #define UDIV_TIME 40
 267 #define count_leading_zeros(count, x) \
 268   do {                                                                  \
 269     USItype __tmp;                                                      \
 270     __asm__ (                                                           \
 271        "ldi             1,%0\n"                                         \
 272 "       extru,=         %1,15,16,%%r0           ; Bits 31..16 zero?\n"  \
 273 "       extru,tr        %1,15,16,%1             ; No.  Shift down, skip add.\n"\
 274 "       ldo             16(%0),%0               ; Yes.  Perform add.\n" \
 275 "       extru,=         %1,23,8,%%r0            ; Bits 15..8 zero?\n"   \
 276 "       extru,tr        %1,23,8,%1              ; No.  Shift down, skip add.\n"\
 277 "       ldo             8(%0),%0                ; Yes.  Perform add.\n" \
 278 "       extru,=         %1,27,4,%%r0            ; Bits 7..4 zero?\n"    \
 279 "       extru,tr        %1,27,4,%1              ; No.  Shift down, skip add.\n"\
 280 "       ldo             4(%0),%0                ; Yes.  Perform add.\n" \
 281 "       extru,=         %1,29,2,%%r0            ; Bits 3..2 zero?\n"    \
 282 "       extru,tr        %1,29,2,%1              ; No.  Shift down, skip add.\n"\
 283 "       ldo             2(%0),%0                ; Yes.  Perform add.\n" \
 284 "       extru           %1,30,1,%1              ; Extract bit 1.\n"     \
 285 "       sub             %0,%1,%0                ; Subtract it.\n"       \
 286         : "=r" (count), "=r" (__tmp) : "1" (x));                        \
 287   } while (0)
 288 #endif
 289
 290 #if (defined (__i370__) || defined (__s390__) || defined (__mvs__)) && W_TYPE_SIZE == 32
 291 #define smul_ppmm(xh, xl, m0, m1) \
 292   do {                                                                  \
 293     union {DItype __ll;                                                 \
 294            struct {USItype __h, __l;} __i;                              \
 295           } __x;                                                        \
 296     __asm__ ("lr %N0,%1\n\tmr %0,%2"                                    \
 297              : "=&r" (__x.__ll)                                         \
 298              : "r" (m0), "r" (m1));                                     \
 299     (xh) = __x.__i.__h; (xl) = __x.__i.__l;                             \
 300   } while (0)
 301 #define sdiv_qrnnd(q, r, n1, n0, d) \
 302   do {                                                                  \
 303     union {DItype __ll;                                                 \
 304            struct {USItype __h, __l;} __i;                              \
 305           } __x;                                                        \
 306     __x.__i.__h = n1; __x.__i.__l = n0;                                 \
 307     __asm__ ("dr %0,%2"                                                 \
 308              : "=r" (__x.__ll)                                          \
 309              : "0" (__x.__ll), "r" (d));                                \
 310     (q) = __x.__i.__l; (r) = __x.__i.__h;                               \
 311   } while (0)
 312 #endif
 313
 314 #if (defined (__i386__) || defined (__i486__)) && W_TYPE_SIZE == 32
 315 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 316   __asm__ ("addl %5,%1\n\tadcl %3,%0"                                   \
 317            : "=r" ((USItype) (sh)),                                     \
 318              "=&r" ((USItype) (sl))                                     \
 319            : "%0" ((USItype) (ah)),                                     \
 320              "g" ((USItype) (bh)),                                      \
 321              "%1" ((USItype) (al)),                                     \
 322              "g" ((USItype) (bl)))
 323 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 324   __asm__ ("subl %5,%1\n\tsbbl %3,%0"                                   \
 325            : "=r" ((USItype) (sh)),                                     \
 326              "=&r" ((USItype) (sl))                                     \
 327            : "0" ((USItype) (ah)),                                      \
 328              "g" ((USItype) (bh)),                                      \
 329              "1" ((USItype) (al)),                                      \
 330              "g" ((USItype) (bl)))
 331 #define umul_ppmm(w1, w0, u, v) \
 332   __asm__ ("mull %3"                                                    \
 333            : "=a" ((USItype) (w0)),                                     \
 334              "=d" ((USItype) (w1))                                      \
 335            : "%0" ((USItype) (u)),                                      \
 336              "rm" ((USItype) (v)))
 337 #define udiv_qrnnd(q, r, n1, n0, dv) \
 338   __asm__ ("divl %4"                                                    \
 339            : "=a" ((USItype) (q)),                                      \
 340              "=d" ((USItype) (r))                                       \
 341            : "0" ((USItype) (n0)),                                      \
 342              "1" ((USItype) (n1)),                                      \
 343              "rm" ((USItype) (dv)))
 344 #define count_leading_zeros(count, x) \
 345   do {                                                                  \
 346     USItype __cbtmp;                                                    \
 347     __asm__ ("bsrl %1,%0"                                               \
 348              : "=r" (__cbtmp) : "rm" ((USItype) (x)));                  \
 349     (count) = __cbtmp ^ 31;                                             \
 350   } while (0)
 351 #define count_trailing_zeros(count, x) \
 352   __asm__ ("bsfl %1,%0" : "=r" (count) : "rm" ((USItype)(x)))
 353 #define UMUL_TIME 40
 354 #define UDIV_TIME 40
 355 #endif /* 80x86 */
 356
 357 #if defined (__i960__) && W_TYPE_SIZE == 32
 358 #define umul_ppmm(w1, w0, u, v) \
 359   ({union {UDItype __ll;                                                \
 360            struct {USItype __l, __h;} __i;                              \
 361           } __xx;                                                       \
 362   __asm__ ("emul        %2,%1,%0"                                       \
 363            : "=d" (__xx.__ll)                                           \
 364            : "%dI" ((USItype) (u)),                                     \
 365              "dI" ((USItype) (v)));                                     \
 366   (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
 367 #define __umulsidi3(u, v) \
 368   ({UDItype __w;                                                        \
 369     __asm__ ("emul      %2,%1,%0"                                       \
 370              : "=d" (__w)                                               \
 371              : "%dI" ((USItype) (u)),                                   \
 372                "dI" ((USItype) (v)));                                   \
 373     __w; })
 374 #endif /* __i960__ */
 375
 376 #if defined (__M32R__) && W_TYPE_SIZE == 32
 377 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 378   /* The cmp clears the condition bit.  */ \
 379   __asm__ ("cmp %0,%0\n\taddx %%5,%1\n\taddx %%3,%0"                    \
 380            : "=r" ((USItype) (sh)),                                     \
 381              "=&r" ((USItype) (sl))                                     \
 382            : "%0" ((USItype) (ah)),                                     \
 383              "r" ((USItype) (bh)),                                      \
 384              "%1" ((USItype) (al)),                                     \
 385              "r" ((USItype) (bl))                                       \
 386            : "cbit")
 387 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 388   /* The cmp clears the condition bit.  */ \
 389   __asm__ ("cmp %0,%0\n\tsubx %5,%1\n\tsubx %3,%0"                      \
 390            : "=r" ((USItype) (sh)),                                     \
 391              "=&r" ((USItype) (sl))                                     \
 392            : "0" ((USItype) (ah)),                                      \
 393              "r" ((USItype) (bh)),                                      \
 394              "1" ((USItype) (al)),                                      \
 395              "r" ((USItype) (bl))                                       \
 396            : "cbit")
 397 #endif /* __M32R__ */
 398
 399 #if defined (__mc68000__) && W_TYPE_SIZE == 32
 400 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 401   __asm__ ("add%.l %5,%1\n\taddx%.l %3,%0"                              \
 402            : "=d" ((USItype) (sh)),                                     \
 403              "=&d" ((USItype) (sl))                                     \
 404            : "%0" ((USItype) (ah)),                                     \
 405              "d" ((USItype) (bh)),                                      \
 406              "%1" ((USItype) (al)),                                     \
 407              "g" ((USItype) (bl)))
 408 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 409   __asm__ ("sub%.l %5,%1\n\tsubx%.l %3,%0"                              \
 410            : "=d" ((USItype) (sh)),                                     \
 411              "=&d" ((USItype) (sl))                                     \
 412            : "0" ((USItype) (ah)),                                      \
 413              "d" ((USItype) (bh)),                                      \
 414              "1" ((USItype) (al)),                                      \
 415              "g" ((USItype) (bl)))
 416
 417 /* The '020, '030, '040 and CPU32 have 32x32->64 and 64/32->32q-32r.  */
 418 #if defined (__mc68020__) || defined(mc68020) \
 419         || defined(__mc68030__) || defined(mc68030) \
 420         || defined(__mc68040__) || defined(mc68040) \
 421         || defined(__mcpu32__) || defined(mcpu32)
 422 #define umul_ppmm(w1, w0, u, v) \
 423   __asm__ ("mulu%.l %3,%1:%0"                                           \
 424            : "=d" ((USItype) (w0)),                                     \
 425              "=d" ((USItype) (w1))                                      \
 426            : "%0" ((USItype) (u)),                                      \
 427              "dmi" ((USItype) (v)))
 428 #define UMUL_TIME 45
 429 #define udiv_qrnnd(q, r, n1, n0, d) \
 430   __asm__ ("divu%.l %4,%1:%0"                                           \
 431            : "=d" ((USItype) (q)),                                      \
 432              "=d" ((USItype) (r))                                       \
 433            : "0" ((USItype) (n0)),                                      \
 434              "1" ((USItype) (n1)),                                      \
 435              "dmi" ((USItype) (d)))
 436 #define UDIV_TIME 90
 437 #define sdiv_qrnnd(q, r, n1, n0, d) \
 438   __asm__ ("divs%.l %4,%1:%0"                                           \
 439            : "=d" ((USItype) (q)),                                      \
 440              "=d" ((USItype) (r))                                       \
 441            : "0" ((USItype) (n0)),                                      \
 442              "1" ((USItype) (n1)),                                      \
 443              "dmi" ((USItype) (d)))
 444
 445 #else /* not mc68020 */
 446 #if !defined(__mcf5200__)
 447 /* %/ inserts REGISTER_PREFIX, %# inserts IMMEDIATE_PREFIX.  */
 448 #define umul_ppmm(xh, xl, a, b) \
 449   __asm__ ("| Inlined umul_ppmm\n"                                      \
 450            "    move%.l %2,%/d0\n"                                      \
 451            "    move%.l %3,%/d1\n"                                      \
 452            "    move%.l %/d0,%/d2\n"                                    \
 453            "    swap    %/d0\n"                                         \
 454            "    move%.l %/d1,%/d3\n"                                    \
 455            "    swap    %/d1\n"                                         \
 456            "    move%.w %/d2,%/d4\n"                                    \
 457            "    mulu    %/d3,%/d4\n"                                    \
 458            "    mulu    %/d1,%/d2\n"                                    \
 459            "    mulu    %/d0,%/d3\n"                                    \
 460            "    mulu    %/d0,%/d1\n"                                    \
 461            "    move%.l %/d4,%/d0\n"                                    \
 462            "    eor%.w  %/d0,%/d0\n"                                    \
 463            "    swap    %/d0\n"                                         \
 464            "    add%.l  %/d0,%/d2\n"                                    \
 465            "    add%.l  %/d3,%/d2\n"                                    \
 466            "    jcc     1f\n"                                           \
 467            "    add%.l  %#65536,%/d1\n"                                 \
 468            "1:  swap    %/d2\n"                                         \
 469            "    moveq   %#0,%/d0\n"                                     \
 470            "    move%.w %/d2,%/d0\n"                                    \
 471            "    move%.w %/d4,%/d2\n"                                    \
 472            "    move%.l %/d2,%1\n"                                      \
 473            "    add%.l  %/d1,%/d0\n"                                    \
 474            "    move%.l %/d0,%0"                                        \
 475            : "=g" ((USItype) (xh)),                                     \
 476              "=g" ((USItype) (xl))                                      \
 477            : "g" ((USItype) (a)),                                       \
 478              "g" ((USItype) (b))                                        \
 479            : "d0", "d1", "d2", "d3", "d4")
 480 #define UMUL_TIME 100
 481 #define UDIV_TIME 400
 482 #endif /* not mcf5200 */
 483 #endif /* not mc68020 */
 484
 485 /* The '020, '030, '040 and '060 have bitfield insns.
 486    cpu32 disguises as a 68020, but lacks them.  */
 487 #if ( defined (__mc68020__) || defined(mc68020) \
 488                 || defined(__mc68030__) || defined(mc68030) \
 489                 || defined(__mc68040__) || defined(mc68040) \
 490                 || defined(__mc68060__) || defined(mc68060) ) \
 491         && !defined(__mcpu32__)
 492 #define count_leading_zeros(count, x) \
 493   __asm__ ("bfffo %1{%b2:%b2},%0"                                       \
 494            : "=d" ((USItype) (count))                                   \
 495            : "od" ((USItype) (x)), "n" (0))
 496 #endif
 497 #endif /* mc68000 */
 498
 499 #if defined (__m88000__) && W_TYPE_SIZE == 32
 500 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 501   __asm__ ("addu.co %1,%r4,%r5\n\taddu.ci %0,%r2,%r3"                   \
 502            : "=r" ((USItype) (sh)),                                     \
 503              "=&r" ((USItype) (sl))                                     \
 504            : "%rJ" ((USItype) (ah)),                                    \
 505              "rJ" ((USItype) (bh)),                                     \
 506              "%rJ" ((USItype) (al)),                                    \
 507              "rJ" ((USItype) (bl)))
 508 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 509   __asm__ ("subu.co %1,%r4,%r5\n\tsubu.ci %0,%r2,%r3"                   \
 510            : "=r" ((USItype) (sh)),                                     \
 511              "=&r" ((USItype) (sl))                                     \
 512            : "rJ" ((USItype) (ah)),                                     \
 513              "rJ" ((USItype) (bh)),                                     \
 514              "rJ" ((USItype) (al)),                                     \
 515              "rJ" ((USItype) (bl)))
 516 #define count_leading_zeros(count, x) \
 517   do {                                                                  \
 518     USItype __cbtmp;                                                    \
 519     __asm__ ("ff1 %0,%1"                                                \
 520              : "=r" (__cbtmp)                                           \
 521              : "r" ((USItype) (x)));                                    \
 522     (count) = __cbtmp ^ 31;                                             \
 523   } while (0)
 524 #define COUNT_LEADING_ZEROS_0 63 /* sic */
 525 #if defined (__mc88110__)
 526 #define umul_ppmm(wh, wl, u, v) \
 527   do {                                                                  \
 528     union {UDItype __ll;                                                \
 529            struct {USItype __h, __l;} __i;                              \
 530           } __xx;                                                       \
 531     __asm__ ("mulu.d    %0,%1,%2"                                       \
 532              : "=r" (__xx.__ll)                                         \
 533              : "r" ((USItype) (u)),                                     \
 534                "r" ((USItype) (v)));                                    \
 535     (wh) = __xx.__i.__h;                                                \
 536     (wl) = __xx.__i.__l;                                                \
 537   } while (0)
 538 #define udiv_qrnnd(q, r, n1, n0, d) \
 539   ({union {UDItype __ll;                                                \
 540            struct {USItype __h, __l;} __i;                              \
 541           } __xx;                                                       \
 542   USItype __q;                                                          \
 543   __xx.__i.__h = (n1); __xx.__i.__l = (n0);                             \
 544   __asm__ ("divu.d %0,%1,%2"                                            \
 545            : "=r" (__q)                                                 \
 546            : "r" (__xx.__ll),                                           \
 547              "r" ((USItype) (d)));                                      \
 548   (r) = (n0) - __q * (d); (q) = __q; })
 549 #define UMUL_TIME 5
 550 #define UDIV_TIME 25
 551 #else
 552 #define UMUL_TIME 17
 553 #define UDIV_TIME 150
 554 #endif /* __mc88110__ */
 555 #endif /* __m88000__ */
 556
 557 #if defined (__mips__) && W_TYPE_SIZE == 32
 558 #define umul_ppmm(w1, w0, u, v) \
 559   __asm__ ("multu %2,%3"                                                \
 560            : "=l" ((USItype) (w0)),                                     \
 561              "=h" ((USItype) (w1))                                      \
 562            : "d" ((USItype) (u)),                                       \
 563              "d" ((USItype) (v)))
 564 #define UMUL_TIME 10
 565 #define UDIV_TIME 100
 566 #endif /* __mips__ */
 567
 568 #if defined (__ns32000__) && W_TYPE_SIZE == 32
 569 #define umul_ppmm(w1, w0, u, v) \
 570   ({union {UDItype __ll;                                                \
 571            struct {USItype __l, __h;} __i;                              \
 572           } __xx;                                                       \
 573   __asm__ ("meid %2,%0"                                                 \
 574            : "=g" (__xx.__ll)                                           \
 575            : "%0" ((USItype) (u)),                                      \
 576              "g" ((USItype) (v)));                                      \
 577   (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
 578 #define __umulsidi3(u, v) \
 579   ({UDItype __w;                                                        \
 580     __asm__ ("meid %2,%0"                                               \
 581              : "=g" (__w)                                               \
 582              : "%0" ((USItype) (u)),                                    \
 583                "g" ((USItype) (v)));                                    \
 584     __w; })
 585 #define udiv_qrnnd(q, r, n1, n0, d) \
 586   ({union {UDItype __ll;                                                \
 587            struct {USItype __l, __h;} __i;                              \
 588           } __xx;                                                       \
 589   __xx.__i.__h = (n1); __xx.__i.__l = (n0);                             \
 590   __asm__ ("deid %2,%0"                                                 \
 591            : "=g" (__xx.__ll)                                           \
 592            : "0" (__xx.__ll),                                           \
 593              "g" ((USItype) (d)));                                      \
 594   (r) = __xx.__i.__l; (q) = __xx.__i.__h; })
 595 #define count_trailing_zeros(count,x) \
 596   do {                                                                  \
 597     __asm__ ("ffsd     %2,%0"                                           \
 598             : "=r" ((USItype) (count))                                  \
 599             : "0" ((USItype) 0),                                        \
 600               "r" ((USItype) (x)));                                     \
 601   } while (0)
 602 #endif /* __ns32000__ */
 603
 604 /* FIXME: We should test _IBMR2 here when we add assembly support for the
 605    system vendor compilers.
 606    FIXME: What's needed for gcc PowerPC VxWorks?  __vxworks__ is not good
 607    enough, since that hits ARM and m68k too.  */
 608 #if (defined (_ARCH_PPC)        /* AIX */                               \
 609      || defined (_ARCH_PWR)     /* AIX */                               \
 610      || defined (_ARCH_COM)     /* AIX */                               \
 611      || defined (__powerpc__)   /* gcc */                               \
 612      || defined (__POWERPC__)   /* BEOS */                              \
 613      || defined (__ppc__)       /* Darwin */                            \
 614      || defined (PPC)           /* GNU/Linux, SysV */                   \
 615      ) && W_TYPE_SIZE == 32
 616 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 617   do {                                                                  \
 618     if (__builtin_constant_p (bh) && (bh) == 0)                         \
 619       __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{aze|addze} %0,%2"           \
 620              : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
 621     else if (__builtin_constant_p (bh) && (bh) == ~(USItype) 0)         \
 622       __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{ame|addme} %0,%2"           \
 623              : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
 624     else                                                                \
 625       __asm__ ("{a%I5|add%I5c} %1,%4,%5\n\t{ae|adde} %0,%2,%3"          \
 626              : "=r" (sh), "=&r" (sl)                                    \
 627              : "%r" (ah), "r" (bh), "%r" (al), "rI" (bl));              \
 628   } while (0)
 629 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 630   do {                                                                  \
 631     if (__builtin_constant_p (ah) && (ah) == 0)                         \
 632       __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfze|subfze} %0,%2"       \
 633                : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
 634     else if (__builtin_constant_p (ah) && (ah) == ~(USItype) 0)         \
 635       __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfme|subfme} %0,%2"       \
 636                : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
 637     else if (__builtin_constant_p (bh) && (bh) == 0)                    \
 638       __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{ame|addme} %0,%2"         \
 639                : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
 640     else if (__builtin_constant_p (bh) && (bh) == ~(USItype) 0)         \
 641       __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{aze|addze} %0,%2"         \
 642                : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
 643     else                                                                \
 644       __asm__ ("{sf%I4|subf%I4c} %1,%5,%4\n\t{sfe|subfe} %0,%3,%2"      \
 645                : "=r" (sh), "=&r" (sl)                                  \
 646                : "r" (ah), "r" (bh), "rI" (al), "r" (bl));              \
 647   } while (0)
 648 #define count_leading_zeros(count, x) \
 649   __asm__ ("{cntlz|cntlzw} %0,%1" : "=r" (count) : "r" (x))
 650 #define COUNT_LEADING_ZEROS_0 32
 651 #if defined (_ARCH_PPC) || defined (__powerpc__) || defined (__POWERPC__) \
 652   || defined (__ppc__) || defined (PPC)
 653 #define umul_ppmm(ph, pl, m0, m1) \
 654   do {                                                                  \
 655     USItype __m0 = (m0), __m1 = (m1);                                   \
 656     __asm__ ("mulhwu %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1));      \
 657     (pl) = __m0 * __m1;                                                 \
 658   } while (0)
 659 #define UMUL_TIME 15
 660 #define smul_ppmm(ph, pl, m0, m1) \
 661   do {                                                                  \
 662     SItype __m0 = (m0), __m1 = (m1);                                    \
 663     __asm__ ("mulhw %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1));       \
 664     (pl) = __m0 * __m1;                                                 \
 665   } while (0)
 666 #define SMUL_TIME 14
 667 #define UDIV_TIME 120
 668 #elif defined (_ARCH_PWR)
 669 #define UMUL_TIME 8
 670 #define smul_ppmm(xh, xl, m0, m1) \
 671   __asm__ ("mul %0,%2,%3" : "=r" (xh), "=q" (xl) : "r" (m0), "r" (m1))
 672 #define SMUL_TIME 4
 673 #define sdiv_qrnnd(q, r, nh, nl, d) \
 674   __asm__ ("div %0,%2,%4" : "=r" (q), "=q" (r) : "r" (nh), "1" (nl), "r" (d))
 675 #define UDIV_TIME 100
 676 #endif
 677 #endif /* 32-bit POWER architecture variants.  */
 678
 679 /* We should test _IBMR2 here when we add assembly support for the system
 680    vendor compilers.  */
 681 #if (defined (_ARCH_PPC64) || defined (__powerpc64__)) && W_TYPE_SIZE == 64
 682 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 683   do {                                                                  \
 684     if (__builtin_constant_p (bh) && (bh) == 0)                         \
 685       __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{aze|addze} %0,%2"           \
 686              : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
 687     else if (__builtin_constant_p (bh) && (bh) == ~(UDItype) 0)         \
 688       __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{ame|addme} %0,%2"           \
 689              : "=r" (sh), "=&r" (sl) : "r" (ah), "%r" (al), "rI" (bl));\
 690     else                                                                \
 691       __asm__ ("{a%I5|add%I5c} %1,%4,%5\n\t{ae|adde} %0,%2,%3"          \
 692              : "=r" (sh), "=&r" (sl)                                    \
 693              : "%r" (ah), "r" (bh), "%r" (al), "rI" (bl));              \
 694   } while (0)
 695 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 696   do {                                                                  \
 697     if (__builtin_constant_p (ah) && (ah) == 0)                         \
 698       __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfze|subfze} %0,%2"       \
 699                : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
 700     else if (__builtin_constant_p (ah) && (ah) == ~(UDItype) 0)         \
 701       __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfme|subfme} %0,%2"       \
 702                : "=r" (sh), "=&r" (sl) : "r" (bh), "rI" (al), "r" (bl));\
 703     else if (__builtin_constant_p (bh) && (bh) == 0)                    \
 704       __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{ame|addme} %0,%2"         \
 705                : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
 706     else if (__builtin_constant_p (bh) && (bh) == ~(UDItype) 0)         \
 707       __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{aze|addze} %0,%2"         \
 708                : "=r" (sh), "=&r" (sl) : "r" (ah), "rI" (al), "r" (bl));\
 709     else                                                                \
 710       __asm__ ("{sf%I4|subf%I4c} %1,%5,%4\n\t{sfe|subfe} %0,%3,%2"      \
 711                : "=r" (sh), "=&r" (sl)                                  \
 712                : "r" (ah), "r" (bh), "rI" (al), "r" (bl));              \
 713   } while (0)
 714 #define count_leading_zeros(count, x) \
 715   __asm__ ("cntlzd %0,%1" : "=r" (count) : "r" (x))
 716 #define COUNT_LEADING_ZEROS_0 64
 717 #define umul_ppmm(ph, pl, m0, m1) \
 718   do {                                                                  \
 719     UDItype __m0 = (m0), __m1 = (m1);                                   \
 720     __asm__ ("mulhdu %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1));      \
 721     (pl) = __m0 * __m1;                                                 \
 722   } while (0)
 723 #define UMUL_TIME 15
 724 #define smul_ppmm(ph, pl, m0, m1) \
 725   do {                                                                  \
 726     DItype __m0 = (m0), __m1 = (m1);                                    \
 727     __asm__ ("mulhd %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1));       \
 728     (pl) = __m0 * __m1;                                                 \
 729   } while (0)
 730 #define SMUL_TIME 14  /* ??? */
 731 #define UDIV_TIME 120 /* ??? */
 732 #endif /* 64-bit PowerPC.  */
 733
 734 #if defined (__ibm032__) /* RT/ROMP */ && W_TYPE_SIZE == 32
 735 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 736   __asm__ ("a %1,%5\n\tae %0,%3"                                        \
 737            : "=r" ((USItype) (sh)),                                     \
 738              "=&r" ((USItype) (sl))                                     \
 739            : "%0" ((USItype) (ah)),                                     \
 740              "r" ((USItype) (bh)),                                      \
 741              "%1" ((USItype) (al)),                                     \
 742              "r" ((USItype) (bl)))
 743 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 744   __asm__ ("s %1,%5\n\tse %0,%3"                                        \
 745            : "=r" ((USItype) (sh)),                                     \
 746              "=&r" ((USItype) (sl))                                     \
 747            : "0" ((USItype) (ah)),                                      \
 748              "r" ((USItype) (bh)),                                      \
 749              "1" ((USItype) (al)),                                      \
 750              "r" ((USItype) (bl)))
 751 #define umul_ppmm(ph, pl, m0, m1) \
 752   do {                                                                  \
 753     USItype __m0 = (m0), __m1 = (m1);                                   \
 754     __asm__ (                                                           \
 755        "s       r2,r2\n"                                                \
 756 "       mts     r10,%2\n"                                               \
 757 "       m       r2,%3\n"                                                \
 758 "       m       r2,%3\n"                                                \
 759 "       m       r2,%3\n"                                                \
 760 "       m       r2,%3\n"                                                \
 761 "       m       r2,%3\n"                                                \
 762 "       m       r2,%3\n"                                                \
 763 "       m       r2,%3\n"                                                \
 764 "       m       r2,%3\n"                                                \
 765 "       m       r2,%3\n"                                                \
 766 "       m       r2,%3\n"                                                \
 767 "       m       r2,%3\n"                                                \
 768 "       m       r2,%3\n"                                                \
 769 "       m       r2,%3\n"                                                \
 770 "       m       r2,%3\n"                                                \
 771 "       m       r2,%3\n"                                                \
 772 "       m       r2,%3\n"                                                \
 773 "       cas     %0,r2,r0\n"                                             \
 774 "       mfs     r10,%1"                                                 \
 775              : "=r" ((USItype) (ph)),                                   \
 776                "=r" ((USItype) (pl))                                    \
 777              : "%r" (__m0),                                             \
 778                 "r" (__m1)                                              \
 779              : "r2");                                                   \
 780     (ph) += ((((SItype) __m0 >> 31) & __m1)                             \
 781              + (((SItype) __m1 >> 31) & __m0));                         \
 782   } while (0)
 783 #define UMUL_TIME 20
 784 #define UDIV_TIME 200
 785 #define count_leading_zeros(count, x) \
 786   do {                                                                  \
 787     if ((x) >= 0x10000)                                                 \
 788       __asm__ ("clz     %0,%1"                                          \
 789                : "=r" ((USItype) (count))                               \
 790                : "r" ((USItype) (x) >> 16));                            \
 791     else                                                                \
 792       {                                                                 \
 793         __asm__ ("clz   %0,%1"                                          \
 794                  : "=r" ((USItype) (count))                             \
 795                  : "r" ((USItype) (x)));                                        \
 796         (count) += 16;                                                  \
 797       }                                                                 \
 798   } while (0)
 799 #endif
 800
 801 #if defined (__sh2__) && W_TYPE_SIZE == 32
 802 #define umul_ppmm(w1, w0, u, v) \
 803   __asm__ (                                                             \
 804        "dmulu.l %2,%3\n\tsts    macl,%1\n\tsts  mach,%0"                \
 805            : "=r" ((USItype)(w1)),                                      \
 806              "=r" ((USItype)(w0))                                       \
 807            : "r" ((USItype)(u)),                                        \
 808              "r" ((USItype)(v))                                         \
 809            : "macl", "mach")
 810 #define UMUL_TIME 5
 811 #endif
 812
 813 #if defined (__SH5__) && __SHMEDIA__ && W_TYPE_SIZE == 32
 814 #define __umulsidi3(u,v) ((UDItype)(USItype)u*(USItype)v)
 815 #define count_leading_zeros(count, x) \
 816   do                                                                    \
 817     {                                                                   \
 818       UDItype x_ = (USItype)(x);                                        \
 819       SItype c_;                                                        \
 820                                                                         \
 821       __asm__ ("nsb %1, %0" : "=r" (c_) : "r" (x_));                    \
 822       (count) = c_ - 31;                                                \
 823     }                                                                   \
 824   while (0)
 825 #define COUNT_LEADING_ZEROS_0 32
 826 #endif
 827
 828 #if defined (__sparc__) && !defined (__arch64__) && !defined (__sparcv9) \
 829     && W_TYPE_SIZE == 32
 830 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
 831   __asm__ ("addcc %r4,%5,%1\n\taddx %r2,%3,%0"                          \
 832            : "=r" ((USItype) (sh)),                                     \
 833              "=&r" ((USItype) (sl))                                     \
 834            : "%rJ" ((USItype) (ah)),                                    \
 835              "rI" ((USItype) (bh)),                                     \
 836              "%rJ" ((USItype) (al)),                                    \
 837              "rI" ((USItype) (bl))                                      \
 838            __CLOBBER_CC)
 839 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
 840   __asm__ ("subcc %r4,%5,%1\n\tsubx %r2,%3,%0"                          \
 841            : "=r" ((USItype) (sh)),                                     \
 842              "=&r" ((USItype) (sl))                                     \
 843            : "rJ" ((USItype) (ah)),                                     \
 844              "rI" ((USItype) (bh)),                                     \
 845              "rJ" ((USItype) (al)),                                     \
 846              "rI" ((USItype) (bl))                                      \
 847            __CLOBBER_CC)
 848 #if defined (__sparc_v8__)
 849 #define umul_ppmm(w1, w0, u, v) \
 850   __asm__ ("umul %2,%3,%1;rd %%y,%0"                                    \
 851            : "=r" ((USItype) (w1)),                                     \
 852              "=r" ((USItype) (w0))                                      \
 853            : "r" ((USItype) (u)),                                       \
 854              "r" ((USItype) (v)))
 855 #define udiv_qrnnd(__q, __r, __n1, __n0, __d) \
 856   __asm__ ("mov %2,%%y;nop;nop;nop;udiv %3,%4,%0;umul %0,%4,%1;sub %3,%1,%1"\
 857            : "=&r" ((USItype) (__q)),                                   \
 858              "=&r" ((USItype) (__r))                                    \
 859            : "r" ((USItype) (__n1)),                                    \
 860              "r" ((USItype) (__n0)),                                    \
 861              "r" ((USItype) (__d)))
 862 #else
 863 #if defined (__sparclite__)
 864 /* This has hardware multiply but not divide.  It also has two additional
 865    instructions scan (ffs from high bit) and divscc.  */
 866 #define umul_ppmm(w1, w0, u, v) \
 867   __asm__ ("umul %2,%3,%1;rd %%y,%0"                                    \
 868            : "=r" ((USItype) (w1)),                                     \
 869              "=r" ((USItype) (w0))                                      \
 870            : "r" ((USItype) (u)),                                       \
 871              "r" ((USItype) (v)))
 872 #define udiv_qrnnd(q, r, n1, n0, d) \
 873   __asm__ ("! Inlined udiv_qrnnd\n"                                     \
 874 "       wr      %%g0,%2,%%y     ! Not a delayed write for sparclite\n"  \
 875 "       tst     %%g0\n"                                                 \
 876 "       divscc  %3,%4,%%g1\n"                                           \
 877 "       divscc  %%g1,%4,%%g1\n"                                         \
 878 "       divscc  %%g1,%4,%%g1\n"                                         \
 879 "       divscc  %%g1,%4,%%g1\n"                                         \
 880 "       divscc  %%g1,%4,%%g1\n"                                         \
 881 "       divscc  %%g1,%4,%%g1\n"                                         \
 882 "       divscc  %%g1,%4,%%g1\n"                                         \
 883 "       divscc  %%g1,%4,%%g1\n"                                         \
 884 "       divscc  %%g1,%4,%%g1\n"                                         \
 885 "       divscc  %%g1,%4,%%g1\n"                                         \
 886 "       divscc  %%g1,%4,%%g1\n"                                         \
 887 "       divscc  %%g1,%4,%%g1\n"                                         \
 888 "       divscc  %%g1,%4,%%g1\n"                                         \
 889 "       divscc  %%g1,%4,%%g1\n"                                         \
 890 "       divscc  %%g1,%4,%%g1\n"                                         \
 891 "       divscc  %%g1,%4,%%g1\n"                                         \
 892 "       divscc  %%g1,%4,%%g1\n"                                         \
 893 "       divscc  %%g1,%4,%%g1\n"                                         \
 894 "       divscc  %%g1,%4,%%g1\n"                                         \
 895 "       divscc  %%g1,%4,%%g1\n"                                         \
 896 "       divscc  %%g1,%4,%%g1\n"                                         \
 897 "       divscc  %%g1,%4,%%g1\n"                                         \
 898 "       divscc  %%g1,%4,%%g1\n"                                         \
 899 "       divscc  %%g1,%4,%%g1\n"                                         \
 900 "       divscc  %%g1,%4,%%g1\n"                                         \
 901 "       divscc  %%g1,%4,%%g1\n"                                         \
 902 "       divscc  %%g1,%4,%%g1\n"                                         \
 903 "       divscc  %%g1,%4,%%g1\n"                                         \
 904 "       divscc  %%g1,%4,%%g1\n"                                         \
 905 "       divscc  %%g1,%4,%%g1\n"                                         \
 906 "       divscc  %%g1,%4,%%g1\n"                                         \
 907 "       divscc  %%g1,%4,%0\n"                                           \
 908 "       rd      %%y,%1\n"                                               \
 909 "       bl,a 1f\n"                                                      \
 910 "       add     %1,%4,%1\n"                                             \
 911 "1:     ! End of inline udiv_qrnnd"                                     \
 912            : "=r" ((USItype) (q)),                                      \
 913              "=r" ((USItype) (r))                                       \
 914            : "r" ((USItype) (n1)),                                      \
 915              "r" ((USItype) (n0)),                                      \
 916              "rI" ((USItype) (d))                                       \
 917            : "g1" __AND_CLOBBER_CC)
 918 #define UDIV_TIME 37
 919 #define count_leading_zeros(count, x) \
 920   do {                                                                  \
 921   __asm__ ("scan %1,1,%0"                                               \
 922            : "=r" ((USItype) (count))                                   \
 923            : "r" ((USItype) (x)));                                      \
 924   } while (0)
 925 /* Early sparclites return 63 for an argument of 0, but they warn that future
 926    implementations might change this.  Therefore, leave COUNT_LEADING_ZEROS_0
 927    undefined.  */
 928 #else
 929 /* SPARC without integer multiplication and divide instructions.
 930    (i.e. at least Sun4/20,40,60,65,75,110,260,280,330,360,380,470,490) */
 931 #define umul_ppmm(w1, w0, u, v) \
 932   __asm__ ("! Inlined umul_ppmm\n"                                      \
 933 "       wr      %%g0,%2,%%y     ! SPARC has 0-3 delay insn after a wr\n"\
 934 "       sra     %3,31,%%o5      ! Don't move this insn\n"               \
 935 "       and     %2,%%o5,%%o5    ! Don't move this insn\n"               \
 936 "       andcc   %%g0,0,%%g1     ! Don't move this insn\n"               \
 937 "       mulscc  %%g1,%3,%%g1\n"                                         \
 938 "       mulscc  %%g1,%3,%%g1\n"                                         \
 939 "       mulscc  %%g1,%3,%%g1\n"                                         \
 940 "       mulscc  %%g1,%3,%%g1\n"                                         \
 941 "       mulscc  %%g1,%3,%%g1\n"                                         \
 942 "       mulscc  %%g1,%3,%%g1\n"                                         \
 943 "       mulscc  %%g1,%3,%%g1\n"                                         \
 944 "       mulscc  %%g1,%3,%%g1\n"                                         \
 945 "       mulscc  %%g1,%3,%%g1\n"                                         \
 946 "       mulscc  %%g1,%3,%%g1\n"                                         \
 947 "       mulscc  %%g1,%3,%%g1\n"                                         \
 948 "       mulscc  %%g1,%3,%%g1\n"                                         \
 949 "       mulscc  %%g1,%3,%%g1\n"                                         \
 950 "       mulscc  %%g1,%3,%%g1\n"                                         \
 951 "       mulscc  %%g1,%3,%%g1\n"                                         \
 952 "       mulscc  %%g1,%3,%%g1\n"                                         \
 953 "       mulscc  %%g1,%3,%%g1\n"                                         \
 954 "       mulscc  %%g1,%3,%%g1\n"                                         \
 955 "       mulscc  %%g1,%3,%%g1\n"                                         \
 956 "       mulscc  %%g1,%3,%%g1\n"                                         \
 957 "       mulscc  %%g1,%3,%%g1\n"                                         \
 958 "       mulscc  %%g1,%3,%%g1\n"                                         \
 959 "       mulscc  %%g1,%3,%%g1\n"                                         \
 960 "       mulscc  %%g1,%3,%%g1\n"                                         \
 961 "       mulscc  %%g1,%3,%%g1\n"                                         \
 962 "       mulscc  %%g1,%3,%%g1\n"                                         \
 963 "       mulscc  %%g1,%3,%%g1\n"                                         \
 964 "       mulscc  %%g1,%3,%%g1\n"                                         \
 965 "       mulscc  %%g1,%3,%%g1\n"                                         \
 966 "       mulscc  %%g1,%3,%%g1\n"                                         \
 967 "       mulscc  %%g1,%3,%%g1\n"                                         \
 968 "       mulscc  %%g1,%3,%%g1\n"                                         \
 969 "       mulscc  %%g1,0,%%g1\n"                                          \
 970 "       add     %%g1,%%o5,%0\n"                                         \
 971 "       rd      %%y,%1"                                                 \
 972            : "=r" ((USItype) (w1)),                                     \
 973              "=r" ((USItype) (w0))                                      \
 974            : "%rI" ((USItype) (u)),                                     \
 975              "r" ((USItype) (v))                                                \
 976            : "g1", "o5" __AND_CLOBBER_CC)
 977 #define UMUL_TIME 39            /* 39 instructions */
 978 /* It's quite necessary to add this much assembler for the sparc.
 979    The default udiv_qrnnd (in C) is more than 10 times slower!  */
 980 #define udiv_qrnnd(__q, __r, __n1, __n0, __d) \
 981   __asm__ ("! Inlined udiv_qrnnd\n"                                     \
 982 "       mov     32,%%g1\n"                                              \
 983 "       subcc   %1,%2,%%g0\n"                                           \
 984 "1:     bcs     5f\n"                                                   \
 985 "        addxcc %0,%0,%0        ! shift n1n0 and a q-bit in lsb\n"      \
 986 "       sub     %1,%2,%1        ! this kills msb of n\n"                \
 987 "       addx    %1,%1,%1        ! so this can't give carry\n"           \
 988 "       subcc   %%g1,1,%%g1\n"                                          \
 989 "2:     bne     1b\n"                                                   \
 990 "        subcc  %1,%2,%%g0\n"                                           \
 991 "       bcs     3f\n"                                                   \
 992 "        addxcc %0,%0,%0        ! shift n1n0 and a q-bit in lsb\n"      \
 993 "       b       3f\n"                                                   \
 994 "        sub    %1,%2,%1        ! this kills msb of n\n"                \
 995 "4:     sub     %1,%2,%1\n"                                             \
 996 "5:     addxcc  %1,%1,%1\n"                                             \
 997 "       bcc     2b\n"                                                   \
 998 "        subcc  %%g1,1,%%g1\n"                                          \
 999 "! Got carry from n.  Subtract next step to cancel this carry.\n"       \
1000 "       bne     4b\n"                                                   \
1001 "        addcc  %0,%0,%0        ! shift n1n0 and a 0-bit in lsb\n"      \
1002 "       sub     %1,%2,%1\n"                                             \
1003 "3:     xnor    %0,0,%0\n"                                              \
1004 "       ! End of inline udiv_qrnnd"                                     \
1005            : "=&r" ((USItype) (__q)),                                   \
1006              "=&r" ((USItype) (__r))                                    \
1007            : "r" ((USItype) (__d)),                                     \
1008              "1" ((USItype) (__n1)),                                    \
1009              "0" ((USItype) (__n0)) : "g1" __AND_CLOBBER_CC)
1010 #define UDIV_TIME (3+7*32)      /* 7 instructions/iteration. 32 iterations.  */
1011 #endif /* __sparclite__ */
1012 #endif /* __sparc_v8__ */
1013 #endif /* sparc32 */
1014
1015 #if ((defined (__sparc__) && defined (__arch64__)) || defined (__sparcv9)) \
1016     && W_TYPE_SIZE == 64
1017 #define add_ssaaaa(sh, sl, ah, al, bh, bl)                              \
1018   __asm__ ("addcc %r4,%5,%1\n\t"                                        \
1019            "add %r2,%3,%0\n\t"                                          \
1020            "bcs,a,pn %%xcc, 1f\n\t"                                     \
1021            "add %0, 1, %0\n"                                            \
1022            "1:"                                                         \
1023            : "=r" ((UDItype)(sh)),                                      \
1024              "=&r" ((UDItype)(sl))                                      \
1025            : "%rJ" ((UDItype)(ah)),                                     \
1026              "rI" ((UDItype)(bh)),                                      \
1027              "%rJ" ((UDItype)(al)),                                     \
1028              "rI" ((UDItype)(bl))                                       \
1029            __CLOBBER_CC)
1030
1031 #define sub_ddmmss(sh, sl, ah, al, bh, bl)                              \
1032   __asm__ ("subcc %r4,%5,%1\n\t"                                        \
1033            "sub %r2,%3,%0\n\t"                                          \
1034            "bcs,a,pn %%xcc, 1f\n\t"                                     \
1035            "sub %0, 1, %0\n\t"                                          \
1036            "1:"                                                         \
1037            : "=r" ((UDItype)(sh)),                                      \
1038              "=&r" ((UDItype)(sl))                                      \
1039            : "rJ" ((UDItype)(ah)),                                      \
1040              "rI" ((UDItype)(bh)),                                      \
1041              "rJ" ((UDItype)(al)),                                      \
1042              "rI" ((UDItype)(bl))                                       \
1043            __CLOBBER_CC)
1044
1045 #define umul_ppmm(wh, wl, u, v)                                         \
1046   do {                                                                  \
1047           UDItype tmp1, tmp2, tmp3, tmp4;                               \
1048           __asm__ __volatile__ (                                        \
1049                    "srl %7,0,%3\n\t"                                    \
1050                    "mulx %3,%6,%1\n\t"                                  \
1051                    "srlx %6,32,%2\n\t"                                  \
1052                    "mulx %2,%3,%4\n\t"                                  \
1053                    "sllx %4,32,%5\n\t"                                  \
1054                    "srl %6,0,%3\n\t"                                    \
1055                    "sub %1,%5,%5\n\t"                                   \
1056                    "srlx %5,32,%5\n\t"                                  \
1057                    "addcc %4,%5,%4\n\t"                                 \
1058                    "srlx %7,32,%5\n\t"                                  \
1059                    "mulx %3,%5,%3\n\t"                                  \
1060                    "mulx %2,%5,%5\n\t"                                  \
1061                    "sethi %%hi(0x80000000),%2\n\t"                      \
1062                    "addcc %4,%3,%4\n\t"                                 \
1063                    "srlx %4,32,%4\n\t"                                  \
1064                    "add %2,%2,%2\n\t"                                   \
1065                    "movcc %%xcc,%%g0,%2\n\t"                            \
1066                    "addcc %5,%4,%5\n\t"                                 \
1067                    "sllx %3,32,%3\n\t"                                  \
1068                    "add %1,%3,%1\n\t"                                   \
1069                    "add %5,%2,%0"                                       \
1070            : "=r" ((UDItype)(wh)),                                      \
1071              "=&r" ((UDItype)(wl)),                                     \
1072              "=&r" (tmp1), "=&r" (tmp2), "=&r" (tmp3), "=&r" (tmp4)     \
1073            : "r" ((UDItype)(u)),                                        \
1074              "r" ((UDItype)(v))                                         \
1075            __CLOBBER_CC);                                               \
1076   } while (0)
1077 #define UMUL_TIME 96
1078 #define UDIV_TIME 230
1079 #endif /* sparc64 */
1080
1081 #if defined (__vax__) && W_TYPE_SIZE == 32
1082 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1083   __asm__ ("addl2 %5,%1\n\tadwc %3,%0"                                  \
1084            : "=g" ((USItype) (sh)),                                     \
1085              "=&g" ((USItype) (sl))                                     \
1086            : "%0" ((USItype) (ah)),                                     \
1087              "g" ((USItype) (bh)),                                      \
1088              "%1" ((USItype) (al)),                                     \
1089              "g" ((USItype) (bl)))
1090 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1091   __asm__ ("subl2 %5,%1\n\tsbwc %3,%0"                                  \
1092            : "=g" ((USItype) (sh)),                                     \
1093              "=&g" ((USItype) (sl))                                     \
1094            : "0" ((USItype) (ah)),                                      \
1095              "g" ((USItype) (bh)),                                      \
1096              "1" ((USItype) (al)),                                      \
1097              "g" ((USItype) (bl)))
1098 #define umul_ppmm(xh, xl, m0, m1) \
1099   do {                                                                  \
1100     union {                                                             \
1101         UDItype __ll;                                                   \
1102         struct {USItype __l, __h;} __i;                                 \
1103       } __xx;                                                           \
1104     USItype __m0 = (m0), __m1 = (m1);                                   \
1105     __asm__ ("emul %1,%2,$0,%0"                                         \
1106              : "=r" (__xx.__ll)                                         \
1107              : "g" (__m0),                                              \
1108                "g" (__m1));                                             \
1109     (xh) = __xx.__i.__h;                                                \
1110     (xl) = __xx.__i.__l;                                                \
1111     (xh) += ((((SItype) __m0 >> 31) & __m1)                             \
1112              + (((SItype) __m1 >> 31) & __m0));                         \
1113   } while (0)
1114 #define sdiv_qrnnd(q, r, n1, n0, d) \
1115   do {                                                                  \
1116     union {DItype __ll;                                                 \
1117            struct {SItype __l, __h;} __i;                               \
1118           } __xx;                                                       \
1119     __xx.__i.__h = n1; __xx.__i.__l = n0;                               \
1120     __asm__ ("ediv %3,%2,%0,%1"                                         \
1121              : "=g" (q), "=g" (r)                                       \
1122              : "g" (__xx.__ll), "g" (d));                               \
1123   } while (0)
1124 #endif /* __vax__ */
1125
1126 #if defined (__z8000__) && W_TYPE_SIZE == 16
1127 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1128   __asm__ ("add %H1,%H5\n\tadc  %H0,%H3"                                \
1129            : "=r" ((unsigned int)(sh)),                                 \
1130              "=&r" ((unsigned int)(sl))                                 \
1131            : "%0" ((unsigned int)(ah)),                                 \
1132              "r" ((unsigned int)(bh)),                                  \
1133              "%1" ((unsigned int)(al)),                                 \
1134              "rQR" ((unsigned int)(bl)))
1135 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1136   __asm__ ("sub %H1,%H5\n\tsbc  %H0,%H3"                                \
1137            : "=r" ((unsigned int)(sh)),                                 \
1138              "=&r" ((unsigned int)(sl))                                 \
1139            : "0" ((unsigned int)(ah)),                                  \
1140              "r" ((unsigned int)(bh)),                                  \
1141              "1" ((unsigned int)(al)),                                  \
1142              "rQR" ((unsigned int)(bl)))
1143 #define umul_ppmm(xh, xl, m0, m1) \
1144   do {                                                                  \
1145     union {long int __ll;                                               \
1146            struct {unsigned int __h, __l;} __i;                         \
1147           } __xx;                                                       \
1148     unsigned int __m0 = (m0), __m1 = (m1);                              \
1149     __asm__ ("mult      %S0,%H3"                                        \
1150              : "=r" (__xx.__i.__h),                                     \
1151                "=r" (__xx.__i.__l)                                      \
1152              : "%1" (__m0),                                             \
1153                "rQR" (__m1));                                           \
1154     (xh) = __xx.__i.__h; (xl) = __xx.__i.__l;                           \
1155     (xh) += ((((signed int) __m0 >> 15) & __m1)                         \
1156              + (((signed int) __m1 >> 15) & __m0));                     \
1157   } while (0)
1158 #endif /* __z8000__ */
1159
1160 #endif /* __GNUC__ */
1161
1162 /* If this machine has no inline assembler, use C macros.  */
1163
1164 #if !defined (add_ssaaaa)
1165 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
1166   do {                                                                  \
1167     UWtype __x;                                                         \
1168     __x = (al) + (bl);                                                  \
1169     (sh) = (ah) + (bh) + (__x < (al));                                  \
1170     (sl) = __x;                                                         \
1171   } while (0)
1172 #endif
1173
1174 #if !defined (sub_ddmmss)
1175 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
1176   do {                                                                  \
1177     UWtype __x;                                                         \
1178     __x = (al) - (bl);                                                  \
1179     (sh) = (ah) - (bh) - (__x > (al));                                  \
1180     (sl) = __x;                                                         \
1181   } while (0)
1182 #endif
1183
1184 /* If we lack umul_ppmm but have smul_ppmm, define umul_ppmm in terms of
1185    smul_ppmm.  */
1186 #if !defined (umul_ppmm) && defined (smul_ppmm)
1187 #define umul_ppmm(w1, w0, u, v)                                         \
1188   do {                                                                  \
1189     UWtype __w1;                                                        \
1190     UWtype __xm0 = (u), __xm1 = (v);                                    \
1191     smul_ppmm (__w1, w0, __xm0, __xm1);                                 \
1192     (w1) = __w1 + (-(__xm0 >> (W_TYPE_SIZE - 1)) & __xm1)               \
1193                 + (-(__xm1 >> (W_TYPE_SIZE - 1)) & __xm0);              \
1194   } while (0)
1195 #endif
1196
1197 /* If we still don't have umul_ppmm, define it using plain C.  */
1198 #if !defined (umul_ppmm)
1199 #define umul_ppmm(w1, w0, u, v)                                         \
1200   do {                                                                  \
1201     UWtype __x0, __x1, __x2, __x3;                                      \
1202     UHWtype __ul, __vl, __uh, __vh;                                     \
1203                                                                         \
1204     __ul = __ll_lowpart (u);                                            \
1205     __uh = __ll_highpart (u);                                           \
1206     __vl = __ll_lowpart (v);                                            \
1207     __vh = __ll_highpart (v);                                           \
1208                                                                         \
1209     __x0 = (UWtype) __ul * __vl;                                        \
1210     __x1 = (UWtype) __ul * __vh;                                        \
1211     __x2 = (UWtype) __uh * __vl;                                        \
1212     __x3 = (UWtype) __uh * __vh;                                        \
1213                                                                         \
1214     __x1 += __ll_highpart (__x0);/* this can't give carry */            \
1215     __x1 += __x2;               /* but this indeed can */               \
1216     if (__x1 < __x2)            /* did we get it? */                    \
1217       __x3 += __ll_B;           /* yes, add it in the proper pos.  */   \
1218                                                                         \
1219     (w1) = __x3 + __ll_highpart (__x1);                                 \
1220     (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0);          \
1221   } while (0)
1222 #endif
1223
1224 #if !defined (__umulsidi3)
1225 #define __umulsidi3(u, v) \
1226   ({DWunion __w;                                                        \
1227     umul_ppmm (__w.s.high, __w.s.low, u, v);                            \
1228     __w.ll; })
1229 #endif
1230
1231 /* Define this unconditionally, so it can be used for debugging.  */
1232 #define __udiv_qrnnd_c(q, r, n1, n0, d) \
1233   do {                                                                  \
1234     UWtype __d1, __d0, __q1, __q0;                                      \
1235     UWtype __r1, __r0, __m;                                             \
1236     __d1 = __ll_highpart (d);                                           \
1237     __d0 = __ll_lowpart (d);                                            \
1238                                                                         \
1239     __r1 = (n1) % __d1;                                                 \
1240     __q1 = (n1) / __d1;                                                 \
1241     __m = (UWtype) __q1 * __d0;                                         \
1242     __r1 = __r1 * __ll_B | __ll_highpart (n0);                          \
1243     if (__r1 < __m)                                                     \
1244       {                                                                 \
1245         __q1--, __r1 += (d);                                            \
1246         if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */\
1247           if (__r1 < __m)                                               \
1248             __q1--, __r1 += (d);                                        \
1249       }                                                                 \
1250     __r1 -= __m;                                                        \
1251                                                                         \
1252     __r0 = __r1 % __d1;                                                 \
1253     __q0 = __r1 / __d1;                                                 \
1254     __m = (UWtype) __q0 * __d0;                                         \
1255     __r0 = __r0 * __ll_B | __ll_lowpart (n0);                           \
1256     if (__r0 < __m)                                                     \
1257       {                                                                 \
1258         __q0--, __r0 += (d);                                            \
1259         if (__r0 >= (d))                                                \
1260           if (__r0 < __m)                                               \
1261             __q0--, __r0 += (d);                                        \
1262       }                                                                 \
1263     __r0 -= __m;                                                        \
1264                                                                         \
1265     (q) = (UWtype) __q1 * __ll_B | __q0;                                \
1266     (r) = __r0;                                                         \
1267   } while (0)
1268
1269 /* If the processor has no udiv_qrnnd but sdiv_qrnnd, go through
1270    __udiv_w_sdiv (defined in libgcc or elsewhere).  */
1271 #if !defined (udiv_qrnnd) && defined (sdiv_qrnnd)
1272 #define udiv_qrnnd(q, r, nh, nl, d) \
1273   do {                                                                  \
1274     USItype __r;                                                        \
1275     (q) = __udiv_w_sdiv (&__r, nh, nl, d);                              \
1276     (r) = __r;                                                          \
1277   } while (0)
1278 #endif
1279
1280 /* If udiv_qrnnd was not defined for this processor, use __udiv_qrnnd_c.  */
1281 #if !defined (udiv_qrnnd)
1282 #define UDIV_NEEDS_NORMALIZATION 1
1283 #define udiv_qrnnd __udiv_qrnnd_c
1284 #endif
1285
1286 #if !defined (count_leading_zeros)
1287 extern const UQItype __clz_tab[] ATTRIBUTE_HIDDEN;
1288 #define count_leading_zeros(count, x) \
1289   do {                                                                  \
1290     UWtype __xr = (x);                                                  \
1291     UWtype __a;                                                         \
1292                                                                         \
1293     if (W_TYPE_SIZE <= 32)                                              \
1294       {                                                                 \
1295         __a = __xr < ((UWtype)1<<2*__BITS4)                             \
1296           ? (__xr < ((UWtype)1<<__BITS4) ? 0 : __BITS4)                 \
1297           : (__xr < ((UWtype)1<<3*__BITS4) ?  2*__BITS4 : 3*__BITS4);   \
1298       }                                                                 \
1299     else                                                                \
1300       {                                                                 \
1301         for (__a = W_TYPE_SIZE - 8; __a > 0; __a -= 8)                  \
1302           if (((__xr >> __a) & 0xff) != 0)                              \
1303             break;                                                      \
1304       }                                                                 \
1305                                                                         \
1306     (count) = W_TYPE_SIZE - (__clz_tab[__xr >> __a] + __a);             \
1307   } while (0)
1308 #define COUNT_LEADING_ZEROS_0 W_TYPE_SIZE
1309 #endif
1310
1311 #if !defined (count_trailing_zeros)
1312 /* Define count_trailing_zeros using count_leading_zeros.  The latter might be
1313    defined in asm, but if it is not, the C version above is good enough.  */
1314 #define count_trailing_zeros(count, x) \
1315   do {                                                                  \
1316     UWtype __ctz_x = (x);                                               \
1317     UWtype __ctz_c;                                                     \
1318     count_leading_zeros (__ctz_c, __ctz_x & -__ctz_x);                  \
1319     (count) = W_TYPE_SIZE - 1 - __ctz_c;                                \
1320   } while (0)
1321 #endif
1322
1323 #ifndef UDIV_NEEDS_NORMALIZATION
1324 #define UDIV_NEEDS_NORMALIZATION 0
1325 #endif