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Diffstat (limited to 'gcc-4.9/libgcc/libgcc2.h')
| -rw-r--r-- | gcc-4.9/libgcc/libgcc2.h | 529 |
1 files changed, 529 insertions, 0 deletions
diff --git a/gcc-4.9/libgcc/libgcc2.h b/gcc-4.9/libgcc/libgcc2.h new file mode 100644 index 000000000..498ecdfb3 --- /dev/null +++ b/gcc-4.9/libgcc/libgcc2.h @@ -0,0 +1,529 @@ +/* Header file for libgcc2.c. */ +/* Copyright (C) 2000-2014 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 3, 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. + +Under Section 7 of GPL version 3, you are granted additional +permissions described in the GCC Runtime Library Exception, version +3.1, as published by the Free Software Foundation. + +You should have received a copy of the GNU General Public License and +a copy of the GCC Runtime Library Exception along with this program; +see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +<http://www.gnu.org/licenses/>. */ + +#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__)); + +#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 \ + && (__SIZEOF_DOUBLE__ * __CHAR_BIT__ == 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 __SIZEOF_DOUBLE__ * __CHAR_BIT__ == 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 __SIZEOF_LONG_LONG__ > 4 +/* 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 cmp_return_type __attribute__((mode (__libgcc_cmp_return__))); +typedef int shift_count_type __attribute__((mode (__libgcc_shift_count__))); + +/* 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 +#ifdef LIBGCC2_GNU_PREFIX +#define __NW(a,b) __gnu_ ## a ## di ## b +#define __NDW(a,b) __gnu_ ## a ## ti ## b +#else +#define __NW(a,b) __ ## a ## di ## b +#define __NDW(a,b) __ ## a ## ti ## b +#endif +#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 +#ifdef LIBGCC2_GNU_PREFIX +#define __NW(a,b) __gnu_ ## a ## si ## b +#define __NDW(a,b) __gnu_ ## a ## di ## b +#else +#define __NW(a,b) __ ## a ## si ## b +#define __NDW(a,b) __ ## a ## di ## b +#endif +#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 +#ifdef LIBGCC2_GNU_PREFIX +#define __NW(a,b) __gnu_ ## a ## hi ## b +#define __NDW(a,b) __gnu_ ## a ## si ## b +#else +#define __NW(a,b) __ ## a ## hi ## b +#define __NDW(a,b) __ ## a ## si ## b +#endif +#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 +#ifdef LIBGCC2_GNU_PREFIX +#define __NW(a,b) __gnu_ ## a ## qi ## b +#define __NDW(a,b) __gnu_ ## a ## hi ## b +#else +#define __NW(a,b) __ ## a ## qi ## b +#define __NDW(a,b) __ ## a ## hi ## b +#endif +#endif + +#ifdef LIBGCC2_GNU_PREFIX +#define __N(a) __gnu_ ## a +#else +#define __N(a) __ ## a +#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 __clrsbSI2 __NW(clrsb,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 __clrsbDI2 __NDW(clrsb,2) +#define __popcountDI2 __NDW(popcount,2) +#define __parityDI2 __NDW(parity,2) + +#define __clz_tab __N(clz_tab) +#define __bswapsi2 __N(bswapsi2) +#define __bswapdi2 __N(bswapdi2) +#define __udiv_w_sdiv __N(udiv_w_sdiv) +#define __clear_cache __N(clear_cache) +#define __enable_execute_stack __N(enable_execute_stack) + +#ifndef __powisf2 +#define __powisf2 __N(powisf2) +#endif +#ifndef __powidf2 +#define __powidf2 __N(powidf2) +#endif +#ifndef __powitf2 +#define __powitf2 __N(powitf2) +#endif +#ifndef __powixf2 +#define __powixf2 __N(powixf2) +#endif +#ifndef __mulsc3 +#define __mulsc3 __N(mulsc3) +#endif +#ifndef __muldc3 +#define __muldc3 __N(muldc3) +#endif +#ifndef __mulxc3 +#define __mulxc3 __N(mulxc3) +#endif +#ifndef __multc3 +#define __multc3 __N(multc3) +#endif +#ifndef __divsc3 +#define __divsc3 __N(divsc3) +#endif +#ifndef __divdc3 +#define __divdc3 __N(divdc3) +#endif +#ifndef __divxc3 +#define __divxc3 __N(divxc3) +#endif +#ifndef __divtc3 +#define __divtc3 __N(divtc3) +#endif + +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, shift_count_type); +extern DWtype __ashldi3 (DWtype, shift_count_type); +extern DWtype __ashrdi3 (DWtype, shift_count_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 cmp_return_type __cmpdi2 (DWtype, DWtype); +extern cmp_return_type __ucmpdi2 (DWtype, DWtype); + +#if MIN_UNITS_PER_WORD > 1 +extern SItype __bswapsi2 (SItype); +#endif +#if __SIZEOF_LONG_LONG__ > 4 +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 +#define __absvsi2 __N(absvsi2) +#define __negvsi2 __N(negvsi2) +#define __addvsi3 __N(addvsi3) +#define __subvsi3 __N(subvsi3) +#define __mulvsi3 __N(mulvsi3) + +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 UDWtype __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 UDWtype __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 UDWtype __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 UDWtype __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 + __BYTE_ORDER__. */ + +#if __BYTE_ORDER__ != __ORDER_LITTLE_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 __ctzDI2 (UDWtype); +extern int __clrsbSI2 (Wtype); +extern int __clrsbDI2 (DWtype); +extern int __ffsSI2 (UWtype); +extern int __ffsDI2 (DWtype); +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 */ |