[thirdparty/gcc.git] / gcc / libgcc2.h

/* Header file for libgcc2.c.  */
/* Copyright (C) 2000, 2001, 2004, 2005
   Free Software Foundation, Inc.

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.

GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING.  If not, write to the Free
Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.  */

/* As a special exception, if you link this library with other files,
   some of which are compiled with GCC, to produce an executable,
   this library does not by itself cause the resulting executable
   to be covered by the GNU General Public License.
   This exception does not however invalidate any other reasons why
   the executable file might be covered by the GNU General Public License.  */


#ifndef GCC_LIBGCC2_H
#define GCC_LIBGCC2_H

#ifndef HIDE_EXPORTS
#pragma GCC visibility push(default)
#endif

extern int __gcc_bcmp (const unsigned char *, const unsigned char *, size_t);
extern void __clear_cache (char *, char *);
extern void __eprintf (const char *, const char *, unsigned int, const char *)
  __attribute__ ((__noreturn__));

/* Permit the tm.h file to select the endianness to use just for this
   file.  This is used when the endianness is determined when the
   compiler is run.  */

#ifndef LIBGCC2_WORDS_BIG_ENDIAN
#define LIBGCC2_WORDS_BIG_ENDIAN WORDS_BIG_ENDIAN
#endif

#ifndef LIBGCC2_DOUBLE_TYPE_SIZE
#define LIBGCC2_DOUBLE_TYPE_SIZE DOUBLE_TYPE_SIZE
#endif
#ifndef LIBGCC2_LONG_DOUBLE_TYPE_SIZE
#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE LONG_DOUBLE_TYPE_SIZE
#endif

#ifndef LIBGCC2_HAS_SF_MODE
#define LIBGCC2_HAS_SF_MODE (BITS_PER_UNIT == 8)
#endif

#ifndef LIBGCC2_HAS_DF_MODE
#define LIBGCC2_HAS_DF_MODE \
  (BITS_PER_UNIT == 8 \
   && (LIBGCC2_DOUBLE_TYPE_SIZE == 64 \
       || LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 64))
#endif

#ifndef LIBGCC2_HAS_XF_MODE
#define LIBGCC2_HAS_XF_MODE \
  (BITS_PER_UNIT == 8 && LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 80)
#endif

#ifndef LIBGCC2_HAS_TF_MODE
#define LIBGCC2_HAS_TF_MODE \
  (BITS_PER_UNIT == 8 && LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 128)
#endif

#ifndef SF_SIZE
#if LIBGCC2_HAS_SF_MODE
#define SF_SIZE FLT_MANT_DIG
#else
#define SF_SIZE 0
#endif
#endif

#ifndef DF_SIZE
#if LIBGCC2_HAS_DF_MODE
#if LIBGCC2_DOUBLE_TYPE_SIZE == 64
#define DF_SIZE DBL_MANT_DIG
#elif LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 64
#define DF_SIZE LDBL_MANT_DIG
#else
#define DF_SIZE 0
#endif
#else
#define DF_SIZE 0
#endif
#endif

#ifndef XF_SIZE
#if LIBGCC2_HAS_XF_MODE
#define XF_SIZE LDBL_MANT_DIG
#else
#define XF_SIZE 0
#endif
#endif

#ifndef TF_SIZE
#if LIBGCC2_HAS_TF_MODE
#define TF_SIZE LDBL_MANT_DIG
#else
#define TF_SIZE 0
#endif
#endif

/* FIXME: This #ifdef probably should be removed, ie. enable the test
   for mips too.  */
/* Don't use IBM Extended Double TFmode for TI->SF calculations.
   The conversion from long double to float suffers from double
   rounding, because we convert via double.  In other cases, going
   through the software fp routines is much slower than the fallback.  */
#ifdef __powerpc__
#define AVOID_FP_TYPE_CONVERSION(SIZE) (SIZE == 106)
#elif defined(WIDEST_HARDWARE_FP_SIZE)
#define AVOID_FP_TYPE_CONVERSION(SIZE) (SIZE > WIDEST_HARDWARE_FP_SIZE)
#else
#define AVOID_FP_TYPE_CONVERSION(SIZE) 0
#endif

/* In the first part of this file, we are interfacing to calls generated
   by the compiler itself.  These calls pass values into these routines
   which have very specific modes (rather than very specific types), and
   these compiler-generated calls also expect any return values to have
   very specific modes (rather than very specific types).  Thus, we need
   to avoid using regular C language type names in this part of the file
   because the sizes for those types can be configured to be anything.
   Instead we use the following special type names.  */

typedef		 int QItype	__attribute__ ((mode (QI)));
typedef unsigned int UQItype	__attribute__ ((mode (QI)));
typedef		 int HItype	__attribute__ ((mode (HI)));
typedef unsigned int UHItype	__attribute__ ((mode (HI)));
#if MIN_UNITS_PER_WORD > 1
/* These typedefs are usually forbidden on dsp's with UNITS_PER_WORD 1.  */
typedef 	 int SItype	__attribute__ ((mode (SI)));
typedef unsigned int USItype	__attribute__ ((mode (SI)));
#if LONG_LONG_TYPE_SIZE > 32
/* These typedefs are usually forbidden on archs with UNITS_PER_WORD 2.  */
typedef		 int DItype	__attribute__ ((mode (DI)));
typedef unsigned int UDItype	__attribute__ ((mode (DI)));
#if MIN_UNITS_PER_WORD > 4
/* These typedefs are usually forbidden on archs with UNITS_PER_WORD 4.  */
typedef		 int TItype	__attribute__ ((mode (TI)));
typedef unsigned int UTItype	__attribute__ ((mode (TI)));
#endif
#endif
#endif

#if LIBGCC2_HAS_SF_MODE
typedef 	float SFtype	__attribute__ ((mode (SF)));
typedef _Complex float SCtype	__attribute__ ((mode (SC)));
#endif
#if LIBGCC2_HAS_DF_MODE
typedef		float DFtype	__attribute__ ((mode (DF)));
typedef _Complex float DCtype	__attribute__ ((mode (DC)));
#endif
#if LIBGCC2_HAS_XF_MODE
typedef		float XFtype	__attribute__ ((mode (XF)));
typedef _Complex float XCtype	__attribute__ ((mode (XC)));
#endif
#if LIBGCC2_HAS_TF_MODE
typedef		float TFtype	__attribute__ ((mode (TF)));
typedef _Complex float TCtype	__attribute__ ((mode (TC)));
#endif

typedef int word_type __attribute__ ((mode (__word__)));

/* Make sure that we don't accidentally use any normal C language built-in
   type names in the first part of this file.  Instead we want to use *only*
   the type names defined above.  The following macro definitions insure
   that if we *do* accidentally use some normal C language built-in type name,
   we will get a syntax error.  */

#define char bogus_type
#define short bogus_type
#define int bogus_type
#define long bogus_type
#define unsigned bogus_type
#define float bogus_type
#define double bogus_type

/* Versions prior to 3.4.4 were not taking into account the word size for
   the 5 trapping arithmetic functions absv, addv, subv, mulv and negv.  As
   a consequence, the si and di variants were always and the only ones emitted.
   To maintain backward compatibility, COMPAT_SIMODE_TRAPPING_ARITHMETIC is
   defined on platforms where it makes sense to still have the si variants
   emitted.  As a bonus, their implementation is now correct.  Note that the
   same mechanism should have been implemented for the di variants, but it
   turns out that no platform would define COMPAT_DIMODE_TRAPPING_ARITHMETIC
   if it existed.  */

#if LIBGCC2_UNITS_PER_WORD == 8
#define W_TYPE_SIZE (8 * BITS_PER_UNIT)
#define Wtype	DItype
#define UWtype	UDItype
#define HWtype	DItype
#define UHWtype	UDItype
#define DWtype	TItype
#define UDWtype	UTItype
#define __NW(a,b)	__ ## a ## di ## b
#define __NDW(a,b)	__ ## a ## ti ## b
#define COMPAT_SIMODE_TRAPPING_ARITHMETIC
#elif LIBGCC2_UNITS_PER_WORD == 4
#define W_TYPE_SIZE (4 * BITS_PER_UNIT)
#define Wtype	SItype
#define UWtype	USItype
#define HWtype	SItype
#define UHWtype	USItype
#define DWtype	DItype
#define UDWtype	UDItype
#define __NW(a,b)	__ ## a ## si ## b
#define __NDW(a,b)	__ ## a ## di ## b
#elif LIBGCC2_UNITS_PER_WORD == 2
#define W_TYPE_SIZE (2 * BITS_PER_UNIT)
#define Wtype	HItype
#define UWtype	UHItype
#define HWtype	HItype
#define UHWtype	UHItype
#define DWtype	SItype
#define UDWtype	USItype
#define __NW(a,b)	__ ## a ## hi ## b
#define __NDW(a,b)	__ ## a ## si ## b
#else
#define W_TYPE_SIZE BITS_PER_UNIT
#define Wtype	QItype
#define UWtype  UQItype
#define HWtype	QItype
#define UHWtype	UQItype
#define DWtype	HItype
#define UDWtype	UHItype
#define __NW(a,b)	__ ## a ## qi ## b
#define __NDW(a,b)	__ ## a ## hi ## b
#endif

#define Wtype_MAX ((Wtype)(((UWtype)1 << (W_TYPE_SIZE - 1)) - 1))
#define Wtype_MIN (- Wtype_MAX - 1)

#if W_TYPE_SIZE == 8
# define Wtype_MAXp1_F	0x1p8f
#elif W_TYPE_SIZE == 16
# define Wtype_MAXp1_F	0x1p16f
#elif W_TYPE_SIZE == 32
# define Wtype_MAXp1_F	0x1p32f
#elif W_TYPE_SIZE == 64
# define Wtype_MAXp1_F	0x1p64f
#else
# error "expand the table"
#endif

#define __muldi3	__NDW(mul,3)
#define __divdi3	__NDW(div,3)
#define __udivdi3	__NDW(udiv,3)
#define __moddi3	__NDW(mod,3)
#define __umoddi3	__NDW(umod,3)
#define __negdi2	__NDW(neg,2)
#define __lshrdi3	__NDW(lshr,3)
#define __ashldi3	__NDW(ashl,3)
#define __ashrdi3	__NDW(ashr,3)
#define __cmpdi2	__NDW(cmp,2)
#define __ucmpdi2	__NDW(ucmp,2)
#define __udivmoddi4	__NDW(udivmod,4)
#define __fixunstfDI	__NDW(fixunstf,)
#define __fixtfdi	__NDW(fixtf,)
#define __fixunsxfDI	__NDW(fixunsxf,)
#define __fixxfdi	__NDW(fixxf,)
#define __fixunsdfDI	__NDW(fixunsdf,)
#define __fixdfdi	__NDW(fixdf,)
#define __fixunssfDI	__NDW(fixunssf,)
#define __fixsfdi	__NDW(fixsf,)
#define __floatdixf	__NDW(float,xf)
#define __floatditf	__NDW(float,tf)
#define __floatdidf	__NDW(float,df)
#define __floatdisf	__NDW(float,sf)
#define __floatundixf	__NDW(floatun,xf)
#define __floatunditf	__NDW(floatun,tf)
#define __floatundidf	__NDW(floatun,df)
#define __floatundisf	__NDW(floatun,sf)
#define __fixunsxfSI	__NW(fixunsxf,)
#define __fixunstfSI	__NW(fixunstf,)
#define __fixunsdfSI	__NW(fixunsdf,)
#define __fixunssfSI	__NW(fixunssf,)

#define __absvSI2	__NW(absv,2)
#define __addvSI3	__NW(addv,3)
#define __subvSI3	__NW(subv,3)
#define __mulvSI3	__NW(mulv,3)
#define __negvSI2	__NW(negv,2)
#define __absvDI2	__NDW(absv,2)
#define __addvDI3	__NDW(addv,3)
#define __subvDI3	__NDW(subv,3)
#define __mulvDI3	__NDW(mulv,3)
#define __negvDI2	__NDW(negv,2)

#define __ffsSI2	__NW(ffs,2)
#define __clzSI2	__NW(clz,2)
#define __ctzSI2	__NW(ctz,2)
#define __popcountSI2	__NW(popcount,2)
#define __paritySI2	__NW(parity,2)
#define __ffsDI2	__NDW(ffs,2)
#define __clzDI2	__NDW(clz,2)
#define __ctzDI2	__NDW(ctz,2)
#define __popcountDI2	__NDW(popcount,2)
#define __parityDI2	__NDW(parity,2)

extern DWtype __muldi3 (DWtype, DWtype);
extern DWtype __divdi3 (DWtype, DWtype);
extern UDWtype __udivdi3 (UDWtype, UDWtype);
extern UDWtype __umoddi3 (UDWtype, UDWtype);
extern DWtype __moddi3 (DWtype, DWtype);

/* __udivmoddi4 is static inline when building other libgcc2 portions.  */
#if (!defined (L_udivdi3) && !defined (L_divdi3) && \
     !defined (L_umoddi3) && !defined (L_moddi3))
extern UDWtype __udivmoddi4 (UDWtype, UDWtype, UDWtype *);
#endif

/* __negdi2 is static inline when building other libgcc2 portions.  */
#if !defined(L_divdi3) && !defined(L_moddi3)
extern DWtype __negdi2 (DWtype);
#endif

extern DWtype __lshrdi3 (DWtype, word_type);
extern DWtype __ashldi3 (DWtype, word_type);
extern DWtype __ashrdi3 (DWtype, word_type);

/* __udiv_w_sdiv is static inline when building other libgcc2 portions.  */
#if (!defined(L_udivdi3) && !defined(L_divdi3) && \
     !defined(L_umoddi3) && !defined(L_moddi3))
extern UWtype __udiv_w_sdiv (UWtype *, UWtype, UWtype, UWtype);
#endif

extern word_type __cmpdi2 (DWtype, DWtype);
extern word_type __ucmpdi2 (DWtype, DWtype);

#if MIN_UNITS_PER_WORD > 1
extern SItype __bswapsi2 (SItype);
#endif
#if LONG_LONG_TYPE_SIZE > 32
extern DItype __bswapdi2 (DItype);
#endif

extern Wtype __absvSI2 (Wtype);
extern Wtype __addvSI3 (Wtype, Wtype);
extern Wtype __subvSI3 (Wtype, Wtype);
extern Wtype __mulvSI3 (Wtype, Wtype);
extern Wtype __negvSI2 (Wtype);
extern DWtype __absvDI2 (DWtype);
extern DWtype __addvDI3 (DWtype, DWtype);
extern DWtype __subvDI3 (DWtype, DWtype);
extern DWtype __mulvDI3 (DWtype, DWtype);
extern DWtype __negvDI2 (DWtype);

#ifdef COMPAT_SIMODE_TRAPPING_ARITHMETIC
extern SItype __absvsi2 (SItype);
extern SItype __addvsi3 (SItype, SItype);
extern SItype __subvsi3 (SItype, SItype);
extern SItype __mulvsi3 (SItype, SItype);
extern SItype __negvsi2 (SItype);
#endif /* COMPAT_SIMODE_TRAPPING_ARITHMETIC */

#undef int
#if LIBGCC2_HAS_SF_MODE
extern DWtype __fixsfdi (SFtype);
extern SFtype __floatdisf (DWtype);
extern SFtype __floatundisf (UDWtype);
extern UWtype __fixunssfSI (SFtype);
extern DWtype __fixunssfDI (SFtype);
extern SFtype __powisf2 (SFtype, int);
extern SCtype __divsc3 (SFtype, SFtype, SFtype, SFtype);
extern SCtype __mulsc3 (SFtype, SFtype, SFtype, SFtype);
#endif
#if LIBGCC2_HAS_DF_MODE
extern DWtype __fixdfdi (DFtype);
extern DFtype __floatdidf (DWtype);
extern DFtype __floatundidf (UDWtype);
extern UWtype __fixunsdfSI (DFtype);
extern DWtype __fixunsdfDI (DFtype);
extern DFtype __powidf2 (DFtype, int);
extern DCtype __divdc3 (DFtype, DFtype, DFtype, DFtype);
extern DCtype __muldc3 (DFtype, DFtype, DFtype, DFtype);
#endif

#if LIBGCC2_HAS_XF_MODE
extern DWtype __fixxfdi (XFtype);
extern DWtype __fixunsxfDI (XFtype);
extern XFtype __floatdixf (DWtype);
extern XFtype __floatundixf (UDWtype);
extern UWtype __fixunsxfSI (XFtype);
extern XFtype __powixf2 (XFtype, int);
extern XCtype __divxc3 (XFtype, XFtype, XFtype, XFtype);
extern XCtype __mulxc3 (XFtype, XFtype, XFtype, XFtype);
#endif

#if LIBGCC2_HAS_TF_MODE
extern DWtype __fixunstfDI (TFtype);
extern DWtype __fixtfdi (TFtype);
extern TFtype __floatditf (DWtype);
extern TFtype __floatunditf (UDWtype);
extern TFtype __powitf2 (TFtype, int);
extern TCtype __divtc3 (TFtype, TFtype, TFtype, TFtype);
extern TCtype __multc3 (TFtype, TFtype, TFtype, TFtype);
#endif
#define int bogus_type

/* DWstructs are pairs of Wtype values in the order determined by
   LIBGCC2_WORDS_BIG_ENDIAN.  */

#if LIBGCC2_WORDS_BIG_ENDIAN
  struct DWstruct {Wtype high, low;};
#else
  struct DWstruct {Wtype low, high;};
#endif

/* We need this union to unpack/pack DImode values, since we don't have
   any arithmetic yet.  Incoming DImode parameters are stored into the
   `ll' field, and the unpacked result is read from the struct `s'.  */

typedef union
{
  struct DWstruct s;
  DWtype ll;
} DWunion;

/* Defined for L_popcount_tab.  Exported here because some targets may
   want to use it for their own versions of the __popcount builtins.  */
extern const UQItype __popcount_tab[256];

/* Defined for L_clz.  Exported here because some targets may want to use
   it for their own versions of the __clz builtins.  It contains the bit
   position of the first set bit for the numbers 0 - 255.  This avoids the
   need for a separate table for the __ctz builtins.  */
extern const UQItype __clz_tab[256];

#include "longlong.h"

#undef int
extern int __clzDI2 (UDWtype);
extern int __clzSI2 (UWtype);
extern int __ctzSI2 (UWtype);
extern int __ffsSI2 (UWtype);
extern int __ffsDI2 (DWtype);
extern int __ctzDI2 (UDWtype);
extern int __popcountSI2 (UWtype);
extern int __popcountDI2 (UDWtype);
extern int __paritySI2 (UWtype);
extern int __parityDI2 (UDWtype);
#define int bogus_type

extern void __enable_execute_stack (void *);

#ifndef HIDE_EXPORTS
#pragma GCC visibility pop
#endif

#endif /* ! GCC_LIBGCC2_H */
Commit	Line	Data
299b83b7	1	/* Header file for libgcc2.c. */
c486021d	2	/* Copyright (C) 2000, 2001, 2004, 2005
299b83b7 KG	3	Free Software Foundation, Inc.
299b83b7 KG	4
1322177d	5	This file is part of GCC.
299b83b7	6
1322177d LB	7	GCC is free software; you can redistribute it and/or modify it under
	8	the terms of the GNU General Public License as published by the Free
	9	Software Foundation; either version 2, or (at your option) any later
	10	version.
299b83b7	11
1322177d LB	12	GCC is distributed in the hope that it will be useful, but WITHOUT ANY
	13	WARRANTY; without even the implied warranty of MERCHANTABILITY or
	14	FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	15	for more details.
299b83b7 KG	16
299b83b7 KG	17	You should have received a copy of the GNU General Public License
1322177d	18	along with GCC; see the file COPYING. If not, write to the Free
366ccddb KC	19	Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
366ccddb KC	20	02110-1301, USA. */
299b83b7	21
77c915d8 DT	22	/* As a special exception, if you link this library with other files,
	23	some of which are compiled with GCC, to produce an executable,
	24	this library does not by itself cause the resulting executable
	25	to be covered by the GNU General Public License.
	26	This exception does not however invalidate any other reasons why
	27	the executable file might be covered by the GNU General Public License. */
	28
	29
88657302 RH	30	#ifndef GCC_LIBGCC2_H
88657302 RH	31	#define GCC_LIBGCC2_H
299b83b7	32
7370bebd	33	#ifndef HIDE_EXPORTS
3fc1f660	34	#pragma GCC visibility push(default)
7370bebd	35	#endif
3fc1f660	36
299b83b7	37	extern int __gcc_bcmp (const unsigned char , const unsigned char , size_t);
299b83b7	38	extern void __clear_cache (char , char );
3fe68d0a ZW	39	extern void __eprintf (const char , const char , unsigned int, const char *)
3fe68d0a ZW	40	__attribute__ ((__noreturn__));
299b83b7	41
299b83b7 KG	42	/* Permit the tm.h file to select the endianness to use just for this
	43	file. This is used when the endianness is determined when the
	44	compiler is run. */
	45
	46	#ifndef LIBGCC2_WORDS_BIG_ENDIAN
	47	#define LIBGCC2_WORDS_BIG_ENDIAN WORDS_BIG_ENDIAN
	48	#endif
	49
4f2e0d5e RH	50	#ifndef LIBGCC2_DOUBLE_TYPE_SIZE
	51	#define LIBGCC2_DOUBLE_TYPE_SIZE DOUBLE_TYPE_SIZE
	52	#endif
299b83b7 KG	53	#ifndef LIBGCC2_LONG_DOUBLE_TYPE_SIZE
	54	#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE LONG_DOUBLE_TYPE_SIZE
	55	#endif
	56
cfa7bd9c RS	57	#ifndef LIBGCC2_HAS_SF_MODE
	58	#define LIBGCC2_HAS_SF_MODE (BITS_PER_UNIT == 8)
	59	#endif
	60
4e9db8b2 SE	61	#ifndef LIBGCC2_HAS_DF_MODE
4e9db8b2 SE	62	#define LIBGCC2_HAS_DF_MODE \
cfa7bd9c RS	63	(BITS_PER_UNIT == 8 \
	64	&& (LIBGCC2_DOUBLE_TYPE_SIZE == 64 \
	65	\|\| LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 64))
4e9db8b2 SE	66	#endif
	67
	68	#ifndef LIBGCC2_HAS_XF_MODE
cfa7bd9c RS	69	#define LIBGCC2_HAS_XF_MODE \
cfa7bd9c RS	70	(BITS_PER_UNIT == 8 && LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 80)
4e9db8b2 SE	71	#endif
	72
	73	#ifndef LIBGCC2_HAS_TF_MODE
cfa7bd9c RS	74	#define LIBGCC2_HAS_TF_MODE \
cfa7bd9c RS	75	(BITS_PER_UNIT == 8 && LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 128)
4e9db8b2 SE	76	#endif
4e9db8b2 SE	77
4a73d865 JM	78	#ifndef SF_SIZE
	79	#if LIBGCC2_HAS_SF_MODE
	80	#define SF_SIZE FLT_MANT_DIG
	81	#else
	82	#define SF_SIZE 0
	83	#endif
	84	#endif
	85
	86	#ifndef DF_SIZE
	87	#if LIBGCC2_HAS_DF_MODE
	88	#if LIBGCC2_DOUBLE_TYPE_SIZE == 64
	89	#define DF_SIZE DBL_MANT_DIG
	90	#elif LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 64
	91	#define DF_SIZE LDBL_MANT_DIG
	92	#else
	93	#define DF_SIZE 0
	94	#endif
	95	#else
	96	#define DF_SIZE 0
	97	#endif
	98	#endif
	99
	100	#ifndef XF_SIZE
	101	#if LIBGCC2_HAS_XF_MODE
	102	#define XF_SIZE LDBL_MANT_DIG
	103	#else
	104	#define XF_SIZE 0
	105	#endif
	106	#endif
	107
	108	#ifndef TF_SIZE
	109	#if LIBGCC2_HAS_TF_MODE
	110	#define TF_SIZE LDBL_MANT_DIG
	111	#else
	112	#define TF_SIZE 0
	113	#endif
	114	#endif
	115
b04c9063 AM	116	/* FIXME: This #ifdef probably should be removed, ie. enable the test
b04c9063 AM	117	for mips too. */
5fb54b91 RH	118	/* Don't use IBM Extended Double TFmode for TI->SF calculations.
	119	The conversion from long double to float suffers from double
	120	rounding, because we convert via double. In other cases, going
	121	through the software fp routines is much slower than the fallback. */
b04c9063	122	#ifdef __powerpc__
5fb54b91 RH	123	#define AVOID_FP_TYPE_CONVERSION(SIZE) (SIZE == 106)
	124	#elif defined(WIDEST_HARDWARE_FP_SIZE)
	125	#define AVOID_FP_TYPE_CONVERSION(SIZE) (SIZE > WIDEST_HARDWARE_FP_SIZE)
b04c9063	126	#else
5fb54b91	127	#define AVOID_FP_TYPE_CONVERSION(SIZE) 0
b04c9063 AM	128	#endif
b04c9063 AM	129
299b83b7 KG	130	/* In the first part of this file, we are interfacing to calls generated
	131	by the compiler itself. These calls pass values into these routines
	132	which have very specific modes (rather than very specific types), and
	133	these compiler-generated calls also expect any return values to have
	134	very specific modes (rather than very specific types). Thus, we need
	135	to avoid using regular C language type names in this part of the file
	136	because the sizes for those types can be configured to be anything.
	137	Instead we use the following special type names. */
	138
	139	typedef int QItype __attribute__ ((mode (QI)));
	140	typedef unsigned int UQItype __attribute__ ((mode (QI)));
	141	typedef int HItype __attribute__ ((mode (HI)));
	142	typedef unsigned int UHItype __attribute__ ((mode (HI)));
aa63d244	143	#if MIN_UNITS_PER_WORD > 1
6614fd40	144	/* These typedefs are usually forbidden on dsp's with UNITS_PER_WORD 1. */
299b83b7 KG	145	typedef int SItype __attribute__ ((mode (SI)));
299b83b7 KG	146	typedef unsigned int USItype __attribute__ ((mode (SI)));
a746dbf5	147	#if LONG_LONG_TYPE_SIZE > 32
6614fd40	148	/* These typedefs are usually forbidden on archs with UNITS_PER_WORD 2. */
299b83b7 KG	149	typedef int DItype __attribute__ ((mode (DI)));
299b83b7 KG	150	typedef unsigned int UDItype __attribute__ ((mode (DI)));
6da9c622	151	#if MIN_UNITS_PER_WORD > 4
6614fd40	152	/* These typedefs are usually forbidden on archs with UNITS_PER_WORD 4. */
6da9c622 RK	153	typedef int TItype __attribute__ ((mode (TI)));
	154	typedef unsigned int UTItype __attribute__ ((mode (TI)));
	155	#endif
299b83b7 KG	156	#endif
	157	#endif
	158
cfa7bd9c	159	#if LIBGCC2_HAS_SF_MODE
299b83b7	160	typedef float SFtype __attribute__ ((mode (SF)));
7e7e470f	161	typedef _Complex float SCtype __attribute__ ((mode (SC)));
cfa7bd9c	162	#endif
4e9db8b2	163	#if LIBGCC2_HAS_DF_MODE
4f2e0d5e RH	164	typedef float DFtype __attribute__ ((mode (DF)));
	165	typedef _Complex float DCtype __attribute__ ((mode (DC)));
	166	#endif
4e9db8b2	167	#if LIBGCC2_HAS_XF_MODE
299b83b7	168	typedef float XFtype __attribute__ ((mode (XF)));
7e7e470f	169	typedef _Complex float XCtype __attribute__ ((mode (XC)));
299b83b7	170	#endif
4e9db8b2	171	#if LIBGCC2_HAS_TF_MODE
299b83b7	172	typedef float TFtype __attribute__ ((mode (TF)));
7e7e470f	173	typedef _Complex float TCtype __attribute__ ((mode (TC)));
299b83b7 KG	174	#endif
299b83b7 KG	175
299b83b7 KG	176	typedef int word_type __attribute__ ((mode (__word__)));
	177
	178	/* Make sure that we don't accidentally use any normal C language built-in
	179	type names in the first part of this file. Instead we want to use only
	180	the type names defined above. The following macro definitions insure
	181	that if we do accidentally use some normal C language built-in type name,
	182	we will get a syntax error. */
	183
	184	#define char bogus_type
	185	#define short bogus_type
	186	#define int bogus_type
	187	#define long bogus_type
	188	#define unsigned bogus_type
	189	#define float bogus_type
	190	#define double bogus_type
	191
0aec6014 EB	192	/* Versions prior to 3.4.4 were not taking into account the word size for
	193	the 5 trapping arithmetic functions absv, addv, subv, mulv and negv. As
	194	a consequence, the si and di variants were always and the only ones emitted.
	195	To maintain backward compatibility, COMPAT_SIMODE_TRAPPING_ARITHMETIC is
	196	defined on platforms where it makes sense to still have the si variants
	197	emitted. As a bonus, their implementation is now correct. Note that the
	198	same mechanism should have been implemented for the di variants, but it
	199	turns out that no platform would define COMPAT_DIMODE_TRAPPING_ARITHMETIC
	200	if it existed. */
	201
baffad1f	202	#if LIBGCC2_UNITS_PER_WORD == 8
6da9c622 RK	203	#define W_TYPE_SIZE (8 * BITS_PER_UNIT)
	204	#define Wtype DItype
	205	#define UWtype UDItype
	206	#define HWtype DItype
	207	#define UHWtype UDItype
	208	#define DWtype TItype
	209	#define UDWtype UTItype
	210	#define __NW(a,b) __ ## a ## di ## b
	211	#define __NDW(a,b) __ ## a ## ti ## b
0aec6014	212	#define COMPAT_SIMODE_TRAPPING_ARITHMETIC
baffad1f	213	#elif LIBGCC2_UNITS_PER_WORD == 4
299b83b7 KG	214	#define W_TYPE_SIZE (4 * BITS_PER_UNIT)
	215	#define Wtype SItype
	216	#define UWtype USItype
	217	#define HWtype SItype
	218	#define UHWtype USItype
	219	#define DWtype DItype
	220	#define UDWtype UDItype
	221	#define __NW(a,b) __ ## a ## si ## b
	222	#define __NDW(a,b) __ ## a ## di ## b
baffad1f	223	#elif LIBGCC2_UNITS_PER_WORD == 2
299b83b7 KG	224	#define W_TYPE_SIZE (2 * BITS_PER_UNIT)
	225	#define Wtype HItype
	226	#define UWtype UHItype
	227	#define HWtype HItype
	228	#define UHWtype UHItype
	229	#define DWtype SItype
	230	#define UDWtype USItype
	231	#define __NW(a,b) __ ## a ## hi ## b
	232	#define __NDW(a,b) __ ## a ## si ## b
	233	#else
	234	#define W_TYPE_SIZE BITS_PER_UNIT
	235	#define Wtype QItype
	236	#define UWtype UQItype
	237	#define HWtype QItype
	238	#define UHWtype UQItype
	239	#define DWtype HItype
	240	#define UDWtype UHItype
	241	#define __NW(a,b) __ ## a ## qi ## b
	242	#define __NDW(a,b) __ ## a ## hi ## b
	243	#endif
	244
5d0e6486 AO	245	#define Wtype_MAX ((Wtype)(((UWtype)1 << (W_TYPE_SIZE - 1)) - 1))
	246	#define Wtype_MIN (- Wtype_MAX - 1)
	247
4f2e0d5e RH	248	#if W_TYPE_SIZE == 8
	249	# define Wtype_MAXp1_F 0x1p8f
	250	#elif W_TYPE_SIZE == 16
	251	# define Wtype_MAXp1_F 0x1p16f
	252	#elif W_TYPE_SIZE == 32
	253	# define Wtype_MAXp1_F 0x1p32f
	254	#elif W_TYPE_SIZE == 64
	255	# define Wtype_MAXp1_F 0x1p64f
	256	#else
	257	# error "expand the table"
	258	#endif
	259
6da9c622 RK	260	#define __muldi3 __NDW(mul,3)
	261	#define __divdi3 __NDW(div,3)
	262	#define __udivdi3 __NDW(udiv,3)
	263	#define __moddi3 __NDW(mod,3)
	264	#define __umoddi3 __NDW(umod,3)
	265	#define __negdi2 __NDW(neg,2)
	266	#define __lshrdi3 __NDW(lshr,3)
	267	#define __ashldi3 __NDW(ashl,3)
	268	#define __ashrdi3 __NDW(ashr,3)
6da9c622 RK	269	#define __cmpdi2 __NDW(cmp,2)
	270	#define __ucmpdi2 __NDW(ucmp,2)
	271	#define __udivmoddi4 __NDW(udivmod,4)
	272	#define __fixunstfDI __NDW(fixunstf,)
	273	#define __fixtfdi __NDW(fixtf,)
	274	#define __fixunsxfDI __NDW(fixunsxf,)
	275	#define __fixxfdi __NDW(fixxf,)
	276	#define __fixunsdfDI __NDW(fixunsdf,)
	277	#define __fixdfdi __NDW(fixdf,)
	278	#define __fixunssfDI __NDW(fixunssf,)
	279	#define __fixsfdi __NDW(fixsf,)
	280	#define __floatdixf __NDW(float,xf)
	281	#define __floatditf __NDW(float,tf)
	282	#define __floatdidf __NDW(float,df)
	283	#define __floatdisf __NDW(float,sf)
d7735880 JM	284	#define __floatundixf __NDW(floatun,xf)
	285	#define __floatunditf __NDW(floatun,tf)
	286	#define __floatundidf __NDW(floatun,df)
	287	#define __floatundisf __NDW(floatun,sf)
6da9c622 RK	288	#define __fixunsxfSI __NW(fixunsxf,)
	289	#define __fixunstfSI __NW(fixunstf,)
	290	#define __fixunsdfSI __NW(fixunsdf,)
	291	#define __fixunssfSI __NW(fixunssf,)
	292
0aec6014 EB	293	#define __absvSI2 __NW(absv,2)
	294	#define __addvSI3 __NW(addv,3)
	295	#define __subvSI3 __NW(subv,3)
	296	#define __mulvSI3 __NW(mulv,3)
	297	#define __negvSI2 __NW(negv,2)
	298	#define __absvDI2 __NDW(absv,2)
	299	#define __addvDI3 __NDW(addv,3)
	300	#define __subvDI3 __NDW(subv,3)
	301	#define __mulvDI3 __NDW(mulv,3)
	302	#define __negvDI2 __NDW(negv,2)
	303
dfff898c	304	#define __ffsSI2 __NW(ffs,2)
8275b011 RH	305	#define __clzSI2 __NW(clz,2)
	306	#define __ctzSI2 __NW(ctz,2)
	307	#define __popcountSI2 __NW(popcount,2)
	308	#define __paritySI2 __NW(parity,2)
dfff898c	309	#define __ffsDI2 __NDW(ffs,2)
8275b011 RH	310	#define __clzDI2 __NDW(clz,2)
	311	#define __ctzDI2 __NDW(ctz,2)
	312	#define __popcountDI2 __NDW(popcount,2)
	313	#define __parityDI2 __NDW(parity,2)
dfff898c	314
d30d6e76 KG	315	extern DWtype __muldi3 (DWtype, DWtype);
	316	extern DWtype __divdi3 (DWtype, DWtype);
	317	extern UDWtype __udivdi3 (UDWtype, UDWtype);
	318	extern UDWtype __umoddi3 (UDWtype, UDWtype);
	319	extern DWtype __moddi3 (DWtype, DWtype);
6da9c622	320
d30d6e76 KG	321	/* __udivmoddi4 is static inline when building other libgcc2 portions. */
	322	#if (!defined (L_udivdi3) && !defined (L_divdi3) && \
	323	!defined (L_umoddi3) && !defined (L_moddi3))
	324	extern UDWtype __udivmoddi4 (UDWtype, UDWtype, UDWtype *);
	325	#endif
	326
	327	/* __negdi2 is static inline when building other libgcc2 portions. */
	328	#if !defined(L_divdi3) && !defined(L_moddi3)
	329	extern DWtype __negdi2 (DWtype);
	330	#endif
	331
	332	extern DWtype __lshrdi3 (DWtype, word_type);
	333	extern DWtype __ashldi3 (DWtype, word_type);
	334	extern DWtype __ashrdi3 (DWtype, word_type);
2928cd7a	335
d30d6e76 KG	336	/* __udiv_w_sdiv is static inline when building other libgcc2 portions. */
	337	#if (!defined(L_udivdi3) && !defined(L_divdi3) && \
	338	!defined(L_umoddi3) && !defined(L_moddi3))
	339	extern UWtype __udiv_w_sdiv (UWtype *, UWtype, UWtype, UWtype);
	340	#endif
	341
	342	extern word_type __cmpdi2 (DWtype, DWtype);
	343	extern word_type __ucmpdi2 (DWtype, DWtype);
	344
66965e90 EC	345	#if MIN_UNITS_PER_WORD > 1
	346	extern SItype __bswapsi2 (SItype);
	347	#endif
	348	#if LONG_LONG_TYPE_SIZE > 32
	349	extern DItype __bswapdi2 (DItype);
	350	#endif
	351
0aec6014 EB	352	extern Wtype __absvSI2 (Wtype);
	353	extern Wtype __addvSI3 (Wtype, Wtype);
	354	extern Wtype __subvSI3 (Wtype, Wtype);
	355	extern Wtype __mulvSI3 (Wtype, Wtype);
	356	extern Wtype __negvSI2 (Wtype);
	357	extern DWtype __absvDI2 (DWtype);
	358	extern DWtype __addvDI3 (DWtype, DWtype);
	359	extern DWtype __subvDI3 (DWtype, DWtype);
	360	extern DWtype __mulvDI3 (DWtype, DWtype);
	361	extern DWtype __negvDI2 (DWtype);
	362
	363	#ifdef COMPAT_SIMODE_TRAPPING_ARITHMETIC
	364	extern SItype __absvsi2 (SItype);
	365	extern SItype __addvsi3 (SItype, SItype);
	366	extern SItype __subvsi3 (SItype, SItype);
	367	extern SItype __mulvsi3 (SItype, SItype);
	368	extern SItype __negvsi2 (SItype);
	369	#endif /* COMPAT_SIMODE_TRAPPING_ARITHMETIC */
8f54374e	370
0b8495ae	371	#undef int
cfa7bd9c	372	#if LIBGCC2_HAS_SF_MODE
d30d6e76	373	extern DWtype __fixsfdi (SFtype);
d30d6e76	374	extern SFtype __floatdisf (DWtype);
d7735880	375	extern SFtype __floatundisf (UDWtype);
6da9c622	376	extern UWtype __fixunssfSI (SFtype);
6da9c622	377	extern DWtype __fixunssfDI (SFtype);
0b8495ae	378	extern SFtype __powisf2 (SFtype, int);
7e7e470f RH	379	extern SCtype __divsc3 (SFtype, SFtype, SFtype, SFtype);
7e7e470f RH	380	extern SCtype __mulsc3 (SFtype, SFtype, SFtype, SFtype);
cfa7bd9c	381	#endif
4e9db8b2	382	#if LIBGCC2_HAS_DF_MODE
4f2e0d5e RH	383	extern DWtype __fixdfdi (DFtype);
4f2e0d5e RH	384	extern DFtype __floatdidf (DWtype);
d7735880	385	extern DFtype __floatundidf (UDWtype);
4f2e0d5e RH	386	extern UWtype __fixunsdfSI (DFtype);
4f2e0d5e RH	387	extern DWtype __fixunsdfDI (DFtype);
0b8495ae	388	extern DFtype __powidf2 (DFtype, int);
7e7e470f RH	389	extern DCtype __divdc3 (DFtype, DFtype, DFtype, DFtype);
7e7e470f RH	390	extern DCtype __muldc3 (DFtype, DFtype, DFtype, DFtype);
4f2e0d5e	391	#endif
7e7e470f	392
4e9db8b2	393	#if LIBGCC2_HAS_XF_MODE
d30d6e76	394	extern DWtype __fixxfdi (XFtype);
6da9c622	395	extern DWtype __fixunsxfDI (XFtype);
d30d6e76	396	extern XFtype __floatdixf (DWtype);
d7735880	397	extern XFtype __floatundixf (UDWtype);
6da9c622	398	extern UWtype __fixunsxfSI (XFtype);
0b8495ae	399	extern XFtype __powixf2 (XFtype, int);
7e7e470f RH	400	extern XCtype __divxc3 (XFtype, XFtype, XFtype, XFtype);
7e7e470f RH	401	extern XCtype __mulxc3 (XFtype, XFtype, XFtype, XFtype);
d30d6e76 KG	402	#endif
d30d6e76 KG	403
4e9db8b2	404	#if LIBGCC2_HAS_TF_MODE
6da9c622	405	extern DWtype __fixunstfDI (TFtype);
d30d6e76 KG	406	extern DWtype __fixtfdi (TFtype);
d30d6e76 KG	407	extern TFtype __floatditf (DWtype);
d7735880	408	extern TFtype __floatunditf (UDWtype);
0b8495ae	409	extern TFtype __powitf2 (TFtype, int);
7e7e470f RH	410	extern TCtype __divtc3 (TFtype, TFtype, TFtype, TFtype);
7e7e470f RH	411	extern TCtype __multc3 (TFtype, TFtype, TFtype, TFtype);
d30d6e76	412	#endif
0b8495ae	413	#define int bogus_type
d30d6e76	414
299b83b7 KG	415	/* DWstructs are pairs of Wtype values in the order determined by
	416	LIBGCC2_WORDS_BIG_ENDIAN. */
	417
	418	#if LIBGCC2_WORDS_BIG_ENDIAN
	419	struct DWstruct {Wtype high, low;};
	420	#else
	421	struct DWstruct {Wtype low, high;};
	422	#endif
	423
	424	/* We need this union to unpack/pack DImode values, since we don't have
	425	any arithmetic yet. Incoming DImode parameters are stored into the
	426	`ll' field, and the unpacked result is read from the struct `s'. */
	427
	428	typedef union
	429	{
	430	struct DWstruct s;
	431	DWtype ll;
	432	} DWunion;
	433
dcfae47c NC	434	/* Defined for L_popcount_tab. Exported here because some targets may
	435	want to use it for their own versions of the __popcount builtins. */
	436	extern const UQItype __popcount_tab[256];
	437
	438	/* Defined for L_clz. Exported here because some targets may want to use
	439	it for their own versions of the __clz builtins. It contains the bit
	440	position of the first set bit for the numbers 0 - 255. This avoids the
6fc0bb99	441	need for a separate table for the __ctz builtins. */
dcfae47c NC	442	extern const UQItype __clz_tab[256];
dcfae47c NC	443
299b83b7 KG	444	#include "longlong.h"
299b83b7 KG	445
3fc1f660 MM	446	#undef int
	447	extern int __clzDI2 (UDWtype);
	448	extern int __clzSI2 (UWtype);
	449	extern int __ctzSI2 (UWtype);
	450	extern int __ffsSI2 (UWtype);
	451	extern int __ffsDI2 (DWtype);
	452	extern int __ctzDI2 (UDWtype);
	453	extern int __popcountSI2 (UWtype);
	454	extern int __popcountDI2 (UDWtype);
	455	extern int __paritySI2 (UWtype);
	456	extern int __parityDI2 (UDWtype);
	457	#define int bogus_type
	458
	459	extern void __enable_execute_stack (void *);
	460
7370bebd	461	#ifndef HIDE_EXPORTS
3fc1f660	462	#pragma GCC visibility pop
7370bebd	463	#endif
3fc1f660	464
88657302	465	#endif /* ! GCC_LIBGCC2_H */