X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Flibgcc2.h;h=4e6fd235988faf030c7288f65418b2212a5a9755;hb=e21b444cfb76b8d67c9ad45766f55730901b6957;hp=05901d89215ece31bb7a283a2bd4b378797cc8fb;hpb=0d55f4d0aeaeb16629a2c07c96a190695b83a7e6;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/libgcc2.h b/gcc/libgcc2.h index 05901d89215..4e6fd235988 100644 --- a/gcc/libgcc2.h +++ b/gcc/libgcc2.h @@ -1,12 +1,12 @@ /* Header file for libgcc2.c. */ -/* Copyright (C) 2000, 2001, 2004, 2005 +/* Copyright (C) 2000, 2001, 2004, 2005, 2009, 2010 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 +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 @@ -14,18 +14,14 @@ 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. */ +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 +. */ #ifndef GCC_LIBGCC2_H #define GCC_LIBGCC2_H @@ -39,21 +35,6 @@ extern void __clear_cache (char *, char *); extern void __eprintf (const char *, const char *, unsigned int, const char *) __attribute__ ((__noreturn__)); -struct exception_descriptor; -extern short int __get_eh_table_language (struct exception_descriptor *); -extern short int __get_eh_table_version (struct exception_descriptor *); - -/* 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 @@ -65,7 +46,7 @@ extern short int __get_eh_table_version (struct exception_descriptor *); #ifndef LIBGCC2_HAS_DF_MODE #define LIBGCC2_HAS_DF_MODE \ (BITS_PER_UNIT == 8 \ - && (LIBGCC2_DOUBLE_TYPE_SIZE == 64 \ + && (__SIZEOF_DOUBLE__ * __CHAR_BIT__ == 64 \ || LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 64)) #endif @@ -79,8 +60,56 @@ extern short int __get_eh_table_version (struct exception_descriptor *); (BITS_PER_UNIT == 8 && LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 128) #endif -#ifndef MIN_UNITS_PER_WORD -#define MIN_UNITS_PER_WORD UNITS_PER_WORD +#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 @@ -100,7 +129,7 @@ typedef unsigned int UHItype __attribute__ ((mode (HI))); /* 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 +#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))); @@ -129,7 +158,8 @@ typedef float TFtype __attribute__ ((mode (TF))); typedef _Complex float TCtype __attribute__ ((mode (TC))); #endif -typedef int word_type __attribute__ ((mode (__word__))); +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* @@ -155,7 +185,7 @@ typedef int word_type __attribute__ ((mode (__word__))); turns out that no platform would define COMPAT_DIMODE_TRAPPING_ARITHMETIC if it existed. */ -#if MIN_UNITS_PER_WORD > 4 +#if LIBGCC2_UNITS_PER_WORD == 8 #define W_TYPE_SIZE (8 * BITS_PER_UNIT) #define Wtype DItype #define UWtype UDItype @@ -166,8 +196,7 @@ typedef int word_type __attribute__ ((mode (__word__))); #define __NW(a,b) __ ## a ## di ## b #define __NDW(a,b) __ ## a ## ti ## b #define COMPAT_SIMODE_TRAPPING_ARITHMETIC -#elif MIN_UNITS_PER_WORD > 2 \ - || (MIN_UNITS_PER_WORD > 1 && LONG_LONG_TYPE_SIZE > 32) +#elif LIBGCC2_UNITS_PER_WORD == 4 #define W_TYPE_SIZE (4 * BITS_PER_UNIT) #define Wtype SItype #define UWtype USItype @@ -177,7 +206,7 @@ typedef int word_type __attribute__ ((mode (__word__))); #define UDWtype UDItype #define __NW(a,b) __ ## a ## si ## b #define __NDW(a,b) __ ## a ## di ## b -#elif MIN_UNITS_PER_WORD > 1 +#elif LIBGCC2_UNITS_PER_WORD == 2 #define W_TYPE_SIZE (2 * BITS_PER_UNIT) #define Wtype HItype #define UWtype UHItype @@ -238,6 +267,10 @@ typedef int word_type __attribute__ ((mode (__word__))); #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,) @@ -282,9 +315,9 @@ extern UDWtype __udivmoddi4 (UDWtype, UDWtype, UDWtype *); extern DWtype __negdi2 (DWtype); #endif -extern DWtype __lshrdi3 (DWtype, word_type); -extern DWtype __ashldi3 (DWtype, word_type); -extern DWtype __ashrdi3 (DWtype, word_type); +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) && \ @@ -292,8 +325,15 @@ extern DWtype __ashrdi3 (DWtype, word_type); extern UWtype __udiv_w_sdiv (UWtype *, UWtype, UWtype, UWtype); #endif -extern word_type __cmpdi2 (DWtype, DWtype); -extern word_type __ucmpdi2 (DWtype, DWtype); +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); @@ -318,8 +358,9 @@ extern SItype __negvsi2 (SItype); #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 UDWtype __fixunssfDI (SFtype); extern SFtype __powisf2 (SFtype, int); extern SCtype __divsc3 (SFtype, SFtype, SFtype, SFtype); extern SCtype __mulsc3 (SFtype, SFtype, SFtype, SFtype); @@ -327,8 +368,9 @@ extern SCtype __mulsc3 (SFtype, SFtype, SFtype, SFtype); #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 UDWtype __fixunsdfDI (DFtype); extern DFtype __powidf2 (DFtype, int); extern DCtype __divdc3 (DFtype, DFtype, DFtype, DFtype); extern DCtype __muldc3 (DFtype, DFtype, DFtype, DFtype); @@ -336,8 +378,9 @@ extern DCtype __muldc3 (DFtype, DFtype, DFtype, DFtype); #if LIBGCC2_HAS_XF_MODE extern DWtype __fixxfdi (XFtype); -extern DWtype __fixunsxfDI (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); @@ -345,9 +388,10 @@ extern XCtype __mulxc3 (XFtype, XFtype, XFtype, XFtype); #endif #if LIBGCC2_HAS_TF_MODE -extern DWtype __fixunstfDI (TFtype); +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); @@ -355,9 +399,9 @@ extern TCtype __multc3 (TFtype, TFtype, TFtype, TFtype); #define int bogus_type /* DWstructs are pairs of Wtype values in the order determined by - LIBGCC2_WORDS_BIG_ENDIAN. */ + __BYTE_ORDER__. */ -#if LIBGCC2_WORDS_BIG_ENDIAN +#if __BYTE_ORDER__ != __ORDER_LITTLE_ENDIAN__ struct DWstruct {Wtype high, low;}; #else struct DWstruct {Wtype low, high;}; @@ -373,6 +417,16 @@ typedef union 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