2010-04-14 Manuel López-Ibáñez <manu@gcc.gnu.org>

[pf3gnuchains/gcc-fork.git] / gcc / libgcc2.h

diff --git a/gcc/libgcc2.h b/gcc/libgcc2.h
index b1c749f..56dc9f7 100644 (file)
--- a/gcc/libgcc2.h
+++ b/gcc/libgcc2.h
@@ -1,12 +1,12 @@
 /* Header file for libgcc2.c.  */
 /* Header file for libgcc2.c.  */

-/* Copyright (C) 2000, 2001, 2004, 2005
+/* Copyright (C) 2000, 2001, 2004, 2005, 2009

    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
    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
 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.
 
 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
+<http://www.gnu.org/licenses/>.  */

 
 #ifndef GCC_LIBGCC2_H
 #define GCC_LIBGCC2_H
 
 #ifndef GCC_LIBGCC2_H
 #define GCC_LIBGCC2_H


@@ -115,10 +111,16 @@ extern void __eprintf (const char *, const char *, unsigned int, const char *)
 
 /* FIXME: This #ifdef probably should be removed, ie. enable the test
    for mips too.  */
 
 /* 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__
 #ifdef __powerpc__

-#define IS_IBM_EXTENDED(SIZE) (SIZE == 106)
+#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
 #else

-#define IS_IBM_EXTENDED(SIZE) 0
+#define AVOID_FP_TYPE_CONVERSION(SIZE) 0

 #endif
 
 /* In the first part of this file, we are interfacing to calls generated
 #endif
 
 /* In the first part of this file, we are interfacing to calls generated


@@ -167,7 +169,8 @@ typedef             float TFtype    __attribute__ ((mode (TF)));
 typedef _Complex float TCtype  __attribute__ ((mode (TC)));
 #endif
 
 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*
 
 /* 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*


@@ -323,9 +326,9 @@ extern UDWtype __udivmoddi4 (UDWtype, UDWtype, UDWtype *);
 extern DWtype __negdi2 (DWtype);
 #endif
 
 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) && \
 
 /* __udiv_w_sdiv is static inline when building other libgcc2 portions.  */
 #if (!defined(L_udivdi3) && !defined(L_divdi3) && \


@@ -333,21 +336,26 @@ extern DWtype __ashrdi3 (DWtype, word_type);
 extern UWtype __udiv_w_sdiv (UWtype *, UWtype, UWtype, UWtype);
 #endif
 
 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 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 Wtype __absvSI2 (Wtype);
 extern Wtype __addvSI3 (Wtype, Wtype);
 extern Wtype __subvSI3 (Wtype, Wtype);
 extern Wtype __mulvSI3 (Wtype, Wtype);
 extern Wtype __negvSI2 (Wtype);

-extern SItype __bswapsi2 (SItype);

 extern DWtype __absvDI2 (DWtype);
 extern DWtype __addvDI3 (DWtype, DWtype);
 extern DWtype __subvDI3 (DWtype, DWtype);
 extern DWtype __mulvDI3 (DWtype, DWtype);
 extern DWtype __negvDI2 (DWtype);
 extern DWtype __absvDI2 (DWtype);
 extern DWtype __addvDI3 (DWtype, DWtype);
 extern DWtype __subvDI3 (DWtype, DWtype);
 extern DWtype __mulvDI3 (DWtype, DWtype);
 extern DWtype __negvDI2 (DWtype);

-extern DItype __bswapdi2 (DItype);

 
 #ifdef COMPAT_SIMODE_TRAPPING_ARITHMETIC
 extern SItype __absvsi2 (SItype);
 
 #ifdef COMPAT_SIMODE_TRAPPING_ARITHMETIC
 extern SItype __absvsi2 (SItype);


@@ -363,7 +371,7 @@ extern DWtype __fixsfdi (SFtype);
 extern SFtype __floatdisf (DWtype);
 extern SFtype __floatundisf (UDWtype);
 extern UWtype __fixunssfSI (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);
 extern SFtype __powisf2 (SFtype, int);
 extern SCtype __divsc3 (SFtype, SFtype, SFtype, SFtype);
 extern SCtype __mulsc3 (SFtype, SFtype, SFtype, SFtype);


@@ -373,7 +381,7 @@ extern DWtype __fixdfdi (DFtype);
 extern DFtype __floatdidf (DWtype);
 extern DFtype __floatundidf (UDWtype);
 extern UWtype __fixunsdfSI (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);
 extern DFtype __powidf2 (DFtype, int);
 extern DCtype __divdc3 (DFtype, DFtype, DFtype, DFtype);
 extern DCtype __muldc3 (DFtype, DFtype, DFtype, DFtype);


@@ -381,7 +389,7 @@ extern DCtype __muldc3 (DFtype, DFtype, DFtype, DFtype);
 
 #if LIBGCC2_HAS_XF_MODE
 extern DWtype __fixxfdi (XFtype);
 
 #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 __floatdixf (DWtype);
 extern XFtype __floatundixf (UDWtype);
 extern UWtype __fixunsxfSI (XFtype);


@@ -391,7 +399,7 @@ extern XCtype __mulxc3 (XFtype, XFtype, XFtype, XFtype);
 #endif
 
 #if LIBGCC2_HAS_TF_MODE
 #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 DWtype __fixtfdi (TFtype);
 extern TFtype __floatditf (DWtype);
 extern TFtype __floatunditf (UDWtype);