libgcc/libgcc2.h

   1 /* Header file for libgcc2.c.  */
   2 /* Copyright (C) 2000-2014 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify it under
   7 the terms of the GNU General Public License as published by the Free
   8 Software Foundation; either version 3, or (at your option) any later
   9 version.
  10
  11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 for more details.
  15
  16 Under Section 7 of GPL version 3, you are granted additional
  17 permissions described in the GCC Runtime Library Exception, version
  18 3.1, as published by the Free Software Foundation.
  19
  20 You should have received a copy of the GNU General Public License and
  21 a copy of the GCC Runtime Library Exception along with this program;
  22 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  23 <http://www.gnu.org/licenses/>.  */
  24
  25 #ifndef GCC_LIBGCC2_H
  26 #define GCC_LIBGCC2_H
  27
  28 #ifndef HIDE_EXPORTS
  29 #pragma GCC visibility push(default)
  30 #endif
  31
  32 extern int __gcc_bcmp (const unsigned char *, const unsigned char *, size_t);
  33 extern void __clear_cache (char *, char *);
  34 extern void __eprintf (const char *, const char *, unsigned int, const char *)
  35   __attribute__ ((__noreturn__));
  36
  37 #ifndef LIBGCC2_LONG_DOUBLE_TYPE_SIZE
  38 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE LONG_DOUBLE_TYPE_SIZE
  39 #endif
  40
  41 #ifndef LIBGCC2_HAS_SF_MODE
  42 #define LIBGCC2_HAS_SF_MODE (BITS_PER_UNIT == 8)
  43 #endif
  44
  45 #ifndef LIBGCC2_HAS_DF_MODE
  46 #define LIBGCC2_HAS_DF_MODE \
  47   (BITS_PER_UNIT == 8 \
  48    && (__SIZEOF_DOUBLE__ * __CHAR_BIT__ == 64 \
  49        || LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 64))
  50 #endif
  51
  52 #ifndef LIBGCC2_HAS_XF_MODE
  53 #define LIBGCC2_HAS_XF_MODE \
  54   (BITS_PER_UNIT == 8 && LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 80)
  55 #endif
  56
  57 #ifndef LIBGCC2_HAS_TF_MODE
  58 #define LIBGCC2_HAS_TF_MODE \
  59   (BITS_PER_UNIT == 8 && LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 128)
  60 #endif
  61
  62 #ifndef __LIBGCC_SF_MANT_DIG__
  63 #if LIBGCC2_HAS_SF_MODE
  64 #error __LIBGCC_SF_MANT_DIG__ not defined
  65 #else
  66 #define __LIBGCC_SF_MANT_DIG__ 0
  67 #endif
  68 #endif
  69
  70 #ifndef __LIBGCC_DF_MANT_DIG__
  71 #if LIBGCC2_HAS_DF_MODE
  72 #error __LIBGCC_DF_MANT_DIG__ not defined
  73 #else
  74 #define __LIBGCC_DF_MANT_DIG__ 0
  75 #endif
  76 #endif
  77
  78 #ifndef __LIBGCC_XF_MANT_DIG__
  79 #if LIBGCC2_HAS_XF_MODE
  80 #error __LIBGCC_XF_MANT_DIG__ not defined
  81 #else
  82 #define __LIBGCC_XF_MANT_DIG__ 0
  83 #endif
  84 #endif
  85
  86 #ifndef __LIBGCC_TF_MANT_DIG__
  87 #if LIBGCC2_HAS_TF_MODE
  88 #error __LIBGCC_TF_MANT_DIG__ not defined
  89 #else
  90 #define __LIBGCC_TF_MANT_DIG__ 0
  91 #endif
  92 #endif
  93
  94 /* FIXME: This #ifdef probably should be removed, ie. enable the test
  95    for mips too.  */
  96 /* Don't use IBM Extended Double TFmode for TI->SF calculations.
  97    The conversion from long double to float suffers from double
  98    rounding, because we convert via double.  In other cases, going
  99    through the software fp routines is much slower than the fallback.  */
 100 #ifdef __powerpc__
 101 #define AVOID_FP_TYPE_CONVERSION(SIZE) (SIZE == 106)
 102 #elif defined(WIDEST_HARDWARE_FP_SIZE)
 103 #define AVOID_FP_TYPE_CONVERSION(SIZE) (SIZE > WIDEST_HARDWARE_FP_SIZE)
 104 #else
 105 #define AVOID_FP_TYPE_CONVERSION(SIZE) 0
 106 #endif
 107
 108 /* In the first part of this file, we are interfacing to calls generated
 109    by the compiler itself.  These calls pass values into these routines
 110    which have very specific modes (rather than very specific types), and
 111    these compiler-generated calls also expect any return values to have
 112    very specific modes (rather than very specific types).  Thus, we need
 113    to avoid using regular C language type names in this part of the file
 114    because the sizes for those types can be configured to be anything.
 115    Instead we use the following special type names.  */
 116
 117 typedef          int QItype     __attribute__ ((mode (QI)));
 118 typedef unsigned int UQItype    __attribute__ ((mode (QI)));
 119 typedef          int HItype     __attribute__ ((mode (HI)));
 120 typedef unsigned int UHItype    __attribute__ ((mode (HI)));
 121 #if MIN_UNITS_PER_WORD > 1
 122 /* These typedefs are usually forbidden on dsp's with UNITS_PER_WORD 1.  */
 123 typedef          int SItype     __attribute__ ((mode (SI)));
 124 typedef unsigned int USItype    __attribute__ ((mode (SI)));
 125 #if __SIZEOF_LONG_LONG__ > 4
 126 /* These typedefs are usually forbidden on archs with UNITS_PER_WORD 2.  */
 127 typedef          int DItype     __attribute__ ((mode (DI)));
 128 typedef unsigned int UDItype    __attribute__ ((mode (DI)));
 129 #if MIN_UNITS_PER_WORD > 4
 130 /* These typedefs are usually forbidden on archs with UNITS_PER_WORD 4.  */
 131 typedef          int TItype     __attribute__ ((mode (TI)));
 132 typedef unsigned int UTItype    __attribute__ ((mode (TI)));
 133 #endif
 134 #endif
 135 #endif
 136
 137 #if LIBGCC2_HAS_SF_MODE
 138 typedef         float SFtype    __attribute__ ((mode (SF)));
 139 typedef _Complex float SCtype   __attribute__ ((mode (SC)));
 140 #endif
 141 #if LIBGCC2_HAS_DF_MODE
 142 typedef         float DFtype    __attribute__ ((mode (DF)));
 143 typedef _Complex float DCtype   __attribute__ ((mode (DC)));
 144 #endif
 145 #if LIBGCC2_HAS_XF_MODE
 146 typedef         float XFtype    __attribute__ ((mode (XF)));
 147 typedef _Complex float XCtype   __attribute__ ((mode (XC)));
 148 #endif
 149 #if LIBGCC2_HAS_TF_MODE
 150 typedef         float TFtype    __attribute__ ((mode (TF)));
 151 typedef _Complex float TCtype   __attribute__ ((mode (TC)));
 152 #endif
 153
 154 typedef int cmp_return_type __attribute__((mode (__libgcc_cmp_return__)));
 155 typedef int shift_count_type __attribute__((mode (__libgcc_shift_count__)));
 156
 157 /* Make sure that we don't accidentally use any normal C language built-in
 158    type names in the first part of this file.  Instead we want to use *only*
 159    the type names defined above.  The following macro definitions insure
 160    that if we *do* accidentally use some normal C language built-in type name,
 161    we will get a syntax error.  */
 162
 163 #define char bogus_type
 164 #define short bogus_type
 165 #define int bogus_type
 166 #define long bogus_type
 167 #define unsigned bogus_type
 168 #define float bogus_type
 169 #define double bogus_type
 170
 171 /* Versions prior to 3.4.4 were not taking into account the word size for
 172    the 5 trapping arithmetic functions absv, addv, subv, mulv and negv.  As
 173    a consequence, the si and di variants were always and the only ones emitted.
 174    To maintain backward compatibility, COMPAT_SIMODE_TRAPPING_ARITHMETIC is
 175    defined on platforms where it makes sense to still have the si variants
 176    emitted.  As a bonus, their implementation is now correct.  Note that the
 177    same mechanism should have been implemented for the di variants, but it
 178    turns out that no platform would define COMPAT_DIMODE_TRAPPING_ARITHMETIC
 179    if it existed.  */
 180
 181 #if LIBGCC2_UNITS_PER_WORD == 8
 182 #define W_TYPE_SIZE (8 * BITS_PER_UNIT)
 183 #define Wtype   DItype
 184 #define UWtype  UDItype
 185 #define HWtype  DItype
 186 #define UHWtype UDItype
 187 #define DWtype  TItype
 188 #define UDWtype UTItype
 189 #ifdef LIBGCC2_GNU_PREFIX
 190 #define __NW(a,b)       __gnu_ ## a ## di ## b
 191 #define __NDW(a,b)      __gnu_ ## a ## ti ## b
 192 #else
 193 #define __NW(a,b)       __ ## a ## di ## b
 194 #define __NDW(a,b)      __ ## a ## ti ## b
 195 #endif
 196 #define COMPAT_SIMODE_TRAPPING_ARITHMETIC
 197 #elif LIBGCC2_UNITS_PER_WORD == 4
 198 #define W_TYPE_SIZE (4 * BITS_PER_UNIT)
 199 #define Wtype   SItype
 200 #define UWtype  USItype
 201 #define HWtype  SItype
 202 #define UHWtype USItype
 203 #define DWtype  DItype
 204 #define UDWtype UDItype
 205 #ifdef LIBGCC2_GNU_PREFIX
 206 #define __NW(a,b)       __gnu_ ## a ## si ## b
 207 #define __NDW(a,b)      __gnu_ ## a ## di ## b
 208 #else
 209 #define __NW(a,b)       __ ## a ## si ## b
 210 #define __NDW(a,b)      __ ## a ## di ## b
 211 #endif
 212 #elif LIBGCC2_UNITS_PER_WORD == 2
 213 #define W_TYPE_SIZE (2 * BITS_PER_UNIT)
 214 #define Wtype   HItype
 215 #define UWtype  UHItype
 216 #define HWtype  HItype
 217 #define UHWtype UHItype
 218 #define DWtype  SItype
 219 #define UDWtype USItype
 220 #ifdef LIBGCC2_GNU_PREFIX
 221 #define __NW(a,b)       __gnu_ ## a ## hi ## b
 222 #define __NDW(a,b)      __gnu_ ## a ## si ## b
 223 #else
 224 #define __NW(a,b)       __ ## a ## hi ## b
 225 #define __NDW(a,b)      __ ## a ## si ## b
 226 #endif
 227 #else
 228 #define W_TYPE_SIZE BITS_PER_UNIT
 229 #define Wtype   QItype
 230 #define UWtype  UQItype
 231 #define HWtype  QItype
 232 #define UHWtype UQItype
 233 #define DWtype  HItype
 234 #define UDWtype UHItype
 235 #ifdef LIBGCC2_GNU_PREFIX
 236 #define __NW(a,b)       __gnu_ ## a ## qi ## b
 237 #define __NDW(a,b)      __gnu_ ## a ## hi ## b
 238 #else
 239 #define __NW(a,b)       __ ## a ## qi ## b
 240 #define __NDW(a,b)      __ ## a ## hi ## b
 241 #endif
 242 #endif
 243
 244 #ifdef LIBGCC2_GNU_PREFIX
 245 #define __N(a)  __gnu_ ## a
 246 #else
 247 #define __N(a)  __ ## a
 248 #endif
 249 #define Wtype_MAX ((Wtype)(((UWtype)1 << (W_TYPE_SIZE - 1)) - 1))
 250 #define Wtype_MIN (- Wtype_MAX - 1)
 251
 252 #if W_TYPE_SIZE == 8
 253 # define Wtype_MAXp1_F  0x1p8f
 254 #elif W_TYPE_SIZE == 16
 255 # define Wtype_MAXp1_F  0x1p16f
 256 #elif W_TYPE_SIZE == 32
 257 # define Wtype_MAXp1_F  0x1p32f
 258 #elif W_TYPE_SIZE == 64
 259 # define Wtype_MAXp1_F  0x1p64f
 260 #else
 261 # error "expand the table"
 262 #endif
 263
 264 #define __muldi3        __NDW(mul,3)
 265 #define __divdi3        __NDW(div,3)
 266 #define __udivdi3       __NDW(udiv,3)
 267 #define __moddi3        __NDW(mod,3)
 268 #define __umoddi3       __NDW(umod,3)
 269 #define __negdi2        __NDW(neg,2)
 270 #define __lshrdi3       __NDW(lshr,3)
 271 #define __ashldi3       __NDW(ashl,3)
 272 #define __ashrdi3       __NDW(ashr,3)
 273 #define __cmpdi2        __NDW(cmp,2)
 274 #define __ucmpdi2       __NDW(ucmp,2)
 275 #define __udivmoddi4    __NDW(udivmod,4)
 276 #define __fixunstfDI    __NDW(fixunstf,)
 277 #define __fixtfdi       __NDW(fixtf,)
 278 #define __fixunsxfDI    __NDW(fixunsxf,)
 279 #define __fixxfdi       __NDW(fixxf,)
 280 #define __fixunsdfDI    __NDW(fixunsdf,)
 281 #define __fixdfdi       __NDW(fixdf,)
 282 #define __fixunssfDI    __NDW(fixunssf,)
 283 #define __fixsfdi       __NDW(fixsf,)
 284 #define __floatdixf     __NDW(float,xf)
 285 #define __floatditf     __NDW(float,tf)
 286 #define __floatdidf     __NDW(float,df)
 287 #define __floatdisf     __NDW(float,sf)
 288 #define __floatundixf   __NDW(floatun,xf)
 289 #define __floatunditf   __NDW(floatun,tf)
 290 #define __floatundidf   __NDW(floatun,df)
 291 #define __floatundisf   __NDW(floatun,sf)
 292 #define __fixunsxfSI    __NW(fixunsxf,)
 293 #define __fixunstfSI    __NW(fixunstf,)
 294 #define __fixunsdfSI    __NW(fixunsdf,)
 295 #define __fixunssfSI    __NW(fixunssf,)
 296
 297 #define __absvSI2       __NW(absv,2)
 298 #define __addvSI3       __NW(addv,3)
 299 #define __subvSI3       __NW(subv,3)
 300 #define __mulvSI3       __NW(mulv,3)
 301 #define __negvSI2       __NW(negv,2)
 302 #define __absvDI2       __NDW(absv,2)
 303 #define __addvDI3       __NDW(addv,3)
 304 #define __subvDI3       __NDW(subv,3)
 305 #define __mulvDI3       __NDW(mulv,3)
 306 #define __negvDI2       __NDW(negv,2)
 307
 308 #define __ffsSI2        __NW(ffs,2)
 309 #define __clzSI2        __NW(clz,2)
 310 #define __ctzSI2        __NW(ctz,2)
 311 #define __clrsbSI2      __NW(clrsb,2)
 312 #define __popcountSI2   __NW(popcount,2)
 313 #define __paritySI2     __NW(parity,2)
 314 #define __ffsDI2        __NDW(ffs,2)
 315 #define __clzDI2        __NDW(clz,2)
 316 #define __ctzDI2        __NDW(ctz,2)
 317 #define __clrsbDI2      __NDW(clrsb,2)
 318 #define __popcountDI2   __NDW(popcount,2)
 319 #define __parityDI2     __NDW(parity,2)
 320
 321 #define __clz_tab               __N(clz_tab)
 322 #define __bswapsi2              __N(bswapsi2)
 323 #define __bswapdi2              __N(bswapdi2)
 324 #define __udiv_w_sdiv           __N(udiv_w_sdiv)
 325 #define __clear_cache           __N(clear_cache)
 326 #define __enable_execute_stack  __N(enable_execute_stack)
 327
 328 #ifndef __powisf2
 329 #define __powisf2               __N(powisf2)
 330 #endif
 331 #ifndef __powidf2
 332 #define __powidf2               __N(powidf2)
 333 #endif
 334 #ifndef __powitf2
 335 #define __powitf2               __N(powitf2)
 336 #endif
 337 #ifndef __powixf2
 338 #define __powixf2               __N(powixf2)
 339 #endif
 340 #ifndef __mulsc3
 341 #define __mulsc3                __N(mulsc3)
 342 #endif
 343 #ifndef __muldc3
 344 #define __muldc3                __N(muldc3)
 345 #endif
 346 #ifndef __mulxc3
 347 #define __mulxc3                __N(mulxc3)
 348 #endif
 349 #ifndef __multc3
 350 #define __multc3                __N(multc3)
 351 #endif
 352 #ifndef __divsc3
 353 #define __divsc3                __N(divsc3)
 354 #endif
 355 #ifndef __divdc3
 356 #define __divdc3                __N(divdc3)
 357 #endif
 358 #ifndef __divxc3
 359 #define __divxc3                __N(divxc3)
 360 #endif
 361 #ifndef __divtc3
 362 #define __divtc3                __N(divtc3)
 363 #endif
 364
 365 extern DWtype __muldi3 (DWtype, DWtype);
 366 extern DWtype __divdi3 (DWtype, DWtype);
 367 extern UDWtype __udivdi3 (UDWtype, UDWtype);
 368 extern UDWtype __umoddi3 (UDWtype, UDWtype);
 369 extern DWtype __moddi3 (DWtype, DWtype);
 370
 371 /* __udivmoddi4 is static inline when building other libgcc2 portions.  */
 372 #if (!defined (L_udivdi3) && !defined (L_divdi3) && \
 373      !defined (L_umoddi3) && !defined (L_moddi3))
 374 extern UDWtype __udivmoddi4 (UDWtype, UDWtype, UDWtype *);
 375 #endif
 376
 377 /* __negdi2 is static inline when building other libgcc2 portions.  */
 378 #if !defined(L_divdi3) && !defined(L_moddi3)
 379 extern DWtype __negdi2 (DWtype);
 380 #endif
 381
 382 extern DWtype __lshrdi3 (DWtype, shift_count_type);
 383 extern DWtype __ashldi3 (DWtype, shift_count_type);
 384 extern DWtype __ashrdi3 (DWtype, shift_count_type);
 385
 386 /* __udiv_w_sdiv is static inline when building other libgcc2 portions.  */
 387 #if (!defined(L_udivdi3) && !defined(L_divdi3) && \
 388      !defined(L_umoddi3) && !defined(L_moddi3))
 389 extern UWtype __udiv_w_sdiv (UWtype *, UWtype, UWtype, UWtype);
 390 #endif
 391
 392 extern cmp_return_type __cmpdi2 (DWtype, DWtype);
 393 extern cmp_return_type __ucmpdi2 (DWtype, DWtype);
 394
 395 #if MIN_UNITS_PER_WORD > 1
 396 extern SItype __bswapsi2 (SItype);
 397 #endif
 398 #if __SIZEOF_LONG_LONG__ > 4
 399 extern DItype __bswapdi2 (DItype);
 400 #endif
 401
 402 extern Wtype __absvSI2 (Wtype);
 403 extern Wtype __addvSI3 (Wtype, Wtype);
 404 extern Wtype __subvSI3 (Wtype, Wtype);
 405 extern Wtype __mulvSI3 (Wtype, Wtype);
 406 extern Wtype __negvSI2 (Wtype);
 407 extern DWtype __absvDI2 (DWtype);
 408 extern DWtype __addvDI3 (DWtype, DWtype);
 409 extern DWtype __subvDI3 (DWtype, DWtype);
 410 extern DWtype __mulvDI3 (DWtype, DWtype);
 411 extern DWtype __negvDI2 (DWtype);
 412
 413 #ifdef COMPAT_SIMODE_TRAPPING_ARITHMETIC
 414 #define __absvsi2       __N(absvsi2)
 415 #define __negvsi2       __N(negvsi2)
 416 #define __addvsi3       __N(addvsi3)
 417 #define __subvsi3       __N(subvsi3)
 418 #define __mulvsi3       __N(mulvsi3)
 419
 420 extern SItype __absvsi2 (SItype);
 421 extern SItype __addvsi3 (SItype, SItype);
 422 extern SItype __subvsi3 (SItype, SItype);
 423 extern SItype __mulvsi3 (SItype, SItype);
 424 extern SItype __negvsi2 (SItype);
 425 #endif /* COMPAT_SIMODE_TRAPPING_ARITHMETIC */
 426
 427 #undef int
 428 #if LIBGCC2_HAS_SF_MODE
 429 extern DWtype __fixsfdi (SFtype);
 430 extern SFtype __floatdisf (DWtype);
 431 extern SFtype __floatundisf (UDWtype);
 432 extern UWtype __fixunssfSI (SFtype);
 433 extern UDWtype __fixunssfDI (SFtype);
 434 extern SFtype __powisf2 (SFtype, int);
 435 extern SCtype __divsc3 (SFtype, SFtype, SFtype, SFtype);
 436 extern SCtype __mulsc3 (SFtype, SFtype, SFtype, SFtype);
 437 #endif
 438 #if LIBGCC2_HAS_DF_MODE
 439 extern DWtype __fixdfdi (DFtype);
 440 extern DFtype __floatdidf (DWtype);
 441 extern DFtype __floatundidf (UDWtype);
 442 extern UWtype __fixunsdfSI (DFtype);
 443 extern UDWtype __fixunsdfDI (DFtype);
 444 extern DFtype __powidf2 (DFtype, int);
 445 extern DCtype __divdc3 (DFtype, DFtype, DFtype, DFtype);
 446 extern DCtype __muldc3 (DFtype, DFtype, DFtype, DFtype);
 447 #endif
 448
 449 #if LIBGCC2_HAS_XF_MODE
 450 extern DWtype __fixxfdi (XFtype);
 451 extern UDWtype __fixunsxfDI (XFtype);
 452 extern XFtype __floatdixf (DWtype);
 453 extern XFtype __floatundixf (UDWtype);
 454 extern UWtype __fixunsxfSI (XFtype);
 455 extern XFtype __powixf2 (XFtype, int);
 456 extern XCtype __divxc3 (XFtype, XFtype, XFtype, XFtype);
 457 extern XCtype __mulxc3 (XFtype, XFtype, XFtype, XFtype);
 458 #endif
 459
 460 #if LIBGCC2_HAS_TF_MODE
 461 extern UDWtype __fixunstfDI (TFtype);
 462 extern DWtype __fixtfdi (TFtype);
 463 extern TFtype __floatditf (DWtype);
 464 extern TFtype __floatunditf (UDWtype);
 465 extern TFtype __powitf2 (TFtype, int);
 466 extern TCtype __divtc3 (TFtype, TFtype, TFtype, TFtype);
 467 extern TCtype __multc3 (TFtype, TFtype, TFtype, TFtype);
 468 #endif
 469 #define int bogus_type
 470
 471 /* DWstructs are pairs of Wtype values in the order determined by
 472    __BYTE_ORDER__.  */
 473
 474 #if __BYTE_ORDER__ != __ORDER_LITTLE_ENDIAN__
 475   struct DWstruct {Wtype high, low;};
 476 #else
 477   struct DWstruct {Wtype low, high;};
 478 #endif
 479
 480 /* We need this union to unpack/pack DImode values, since we don't have
 481    any arithmetic yet.  Incoming DImode parameters are stored into the
 482    `ll' field, and the unpacked result is read from the struct `s'.  */
 483
 484 typedef union
 485 {
 486   struct DWstruct s;
 487   DWtype ll;
 488 } DWunion;
 489
 490 /* Defined for L_popcount_tab.  Exported here because some targets may
 491    want to use it for their own versions of the __popcount builtins.  */
 492 extern const UQItype __popcount_tab[256];
 493
 494 /* Defined for L_clz.  Exported here because some targets may want to use
 495    it for their own versions of the __clz builtins.  It contains the bit
 496    position of the first set bit for the numbers 0 - 255.  This avoids the
 497    need for a separate table for the __ctz builtins.  */
 498 extern const UQItype __clz_tab[256];
 499
 500 #include "longlong.h"
 501
 502 #undef int
 503 extern int __clzDI2 (UDWtype);
 504 extern int __clzSI2 (UWtype);
 505 extern int __ctzSI2 (UWtype);
 506 extern int __ctzDI2 (UDWtype);
 507 extern int __clrsbSI2 (Wtype);
 508 extern int __clrsbDI2 (DWtype);
 509 extern int __ffsSI2 (UWtype);
 510 extern int __ffsDI2 (DWtype);
 511 extern int __popcountSI2 (UWtype);
 512 extern int __popcountDI2 (UDWtype);
 513 extern int __paritySI2 (UWtype);
 514 extern int __parityDI2 (UDWtype);
 515 #define int bogus_type
 516
 517 extern void __enable_execute_stack (void *);
 518
 519 #ifndef HIDE_EXPORTS
 520 #pragma GCC visibility pop
 521 #endif
 522
 523 #endif /* ! GCC_LIBGCC2_H */