+++ /dev/null
-/* Functions needed for soft-float on powerpc64-linux, copied from
- libgcc2.c with macros expanded to force the use of specific types.
-
- Copyright (C) 1989-2020 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/>. */
-
-#if defined(__powerpc64__) || defined (__64BIT__) || defined(__ppc64__)
-#define TMODES
-#include "fp-bit.h"
-
-extern DItype __fixtfdi (TFtype);
-extern DItype __fixdfdi (DFtype);
-extern DItype __fixsfdi (SFtype);
-extern USItype __fixunsdfsi (DFtype);
-extern USItype __fixunssfsi (SFtype);
-extern TFtype __floatditf (DItype);
-extern TFtype __floatunditf (UDItype);
-extern DFtype __floatdidf (DItype);
-extern DFtype __floatundidf (UDItype);
-extern SFtype __floatdisf (DItype);
-extern SFtype __floatundisf (UDItype);
-extern DItype __fixunstfdi (TFtype);
-
-static DItype local_fixunssfdi (SFtype);
-static DItype local_fixunsdfdi (DFtype);
-
-DItype
-__fixtfdi (TFtype a)
-{
- if (a < 0)
- return - __fixunstfdi (-a);
- return __fixunstfdi (a);
-}
-
-DItype
-__fixdfdi (DFtype a)
-{
- if (a < 0)
- return - local_fixunsdfdi (-a);
- return local_fixunsdfdi (a);
-}
-
-DItype
-__fixsfdi (SFtype a)
-{
- if (a < 0)
- return - local_fixunssfdi (-a);
- return local_fixunssfdi (a);
-}
-
-USItype
-__fixunsdfsi (DFtype a)
-{
- if (a >= - (DFtype) (- ((SItype)(((USItype)1 << ((4 * 8) - 1)) - 1)) - 1))
- return (SItype) (a + (- ((SItype)(((USItype)1 << ((4 * 8) - 1)) - 1)) - 1))
- - (- ((SItype)(((USItype)1 << ((4 * 8) - 1)) - 1)) - 1);
- return (SItype) a;
-}
-
-USItype
-__fixunssfsi (SFtype a)
-{
- if (a >= - (SFtype) (- ((SItype)(((USItype)1 << ((4 * 8) - 1)) - 1)) - 1))
- return (SItype) (a + (- ((SItype)(((USItype)1 << ((4 * 8) - 1)) - 1)) - 1))
- - (- ((SItype)(((USItype)1 << ((4 * 8) - 1)) - 1)) - 1);
- return (SItype) a;
-}
-
-TFtype
-__floatditf (DItype u)
-{
- DFtype dh, dl;
-
- dh = (SItype) (u >> (sizeof (SItype) * 8));
- dh *= 2.0 * (((UDItype) 1) << ((sizeof (SItype) * 8) - 1));
- dl = (USItype) (u & ((((UDItype) 1) << (sizeof (SItype) * 8)) - 1));
-
- return (TFtype) dh + (TFtype) dl;
-}
-
-TFtype
-__floatunditf (UDItype u)
-{
- DFtype dh, dl;
-
- dh = (USItype) (u >> (sizeof (SItype) * 8));
- dh *= 2.0 * (((UDItype) 1) << ((sizeof (SItype) * 8) - 1));
- dl = (USItype) (u & ((((UDItype) 1) << (sizeof (SItype) * 8)) - 1));
-
- return (TFtype) dh + (TFtype) dl;
-}
-
-DFtype
-__floatdidf (DItype u)
-{
- DFtype d;
-
- d = (SItype) (u >> (sizeof (SItype) * 8));
- d *= 2.0 * (((UDItype) 1) << ((sizeof (SItype) * 8) - 1));
- d += (USItype) (u & ((((UDItype) 1) << (sizeof (SItype) * 8)) - 1));
-
- return d;
-}
-
-DFtype
-__floatundidf (UDItype u)
-{
- DFtype d;
-
- d = (USItype) (u >> (sizeof (SItype) * 8));
- d *= 2.0 * (((UDItype) 1) << ((sizeof (SItype) * 8) - 1));
- d += (USItype) (u & ((((UDItype) 1) << (sizeof (SItype) * 8)) - 1));
-
- return d;
-}
-
-SFtype
-__floatdisf (DItype u)
-{
- DFtype f;
-
- if (53 < (sizeof (DItype) * 8)
- && 53 > ((sizeof (DItype) * 8) - 53 + 24))
- {
- if (! (- ((DItype) 1 << 53) < u
- && u < ((DItype) 1 << 53)))
- {
- if ((UDItype) u & (((UDItype) 1 << ((sizeof (DItype) * 8) - 53)) - 1))
- {
- u &= ~ (((UDItype) 1 << ((sizeof (DItype) * 8) - 53)) - 1);
- u |= ((UDItype) 1 << ((sizeof (DItype) * 8) - 53));
- }
- }
- }
- f = (SItype) (u >> (sizeof (SItype) * 8));
- f *= 2.0 * (((UDItype) 1) << ((sizeof (SItype) * 8) - 1));
- f += (USItype) (u & ((((UDItype) 1) << (sizeof (SItype) * 8)) - 1));
-
- return (SFtype) f;
-}
-
-SFtype
-__floatundisf (UDItype u)
-{
- DFtype f;
-
- if (53 < (sizeof (DItype) * 8)
- && 53 > ((sizeof (DItype) * 8) - 53 + 24))
- {
- if (u >= ((UDItype) 1 << 53))
- {
- if ((UDItype) u & (((UDItype) 1 << ((sizeof (DItype) * 8) - 53)) - 1))
- {
- u &= ~ (((UDItype) 1 << ((sizeof (DItype) * 8) - 53)) - 1);
- u |= ((UDItype) 1 << ((sizeof (DItype) * 8) - 53));
- }
- }
- }
- f = (USItype) (u >> (sizeof (SItype) * 8));
- f *= 2.0 * (((UDItype) 1) << ((sizeof (SItype) * 8) - 1));
- f += (USItype) (u & ((((UDItype) 1) << (sizeof (SItype) * 8)) - 1));
-
- return (SFtype) f;
-}
-
-DItype
-__fixunstfdi (TFtype a)
-{
- if (a < 0)
- return 0;
-
- /* Compute high word of result, as a flonum. */
- const TFtype b = (a / (((UDItype) 1) << (sizeof (SItype) * 8)));
- /* Convert that to fixed (but not to DItype!),
- and shift it into the high word. */
- UDItype v = (USItype) b;
- v <<= (sizeof (SItype) * 8);
- /* Remove high part from the TFtype, leaving the low part as flonum. */
- a -= (TFtype) v;
- /* Convert that to fixed (but not to DItype!) and add it in.
- Sometimes A comes out negative. This is significant, since
- A has more bits than a long int does. */
- if (a < 0)
- v -= (USItype) (-a);
- else
- v += (USItype) a;
- return v;
-}
-
-/* This version is needed to prevent recursion; fixunsdfdi in libgcc
- calls fixdfdi, which in turn calls calls fixunsdfdi. */
-
-static DItype
-local_fixunsdfdi (DFtype a)
-{
- USItype hi, lo;
-
- hi = a / (((UDItype) 1) << (sizeof (SItype) * 8));
- lo = (a - ((DFtype) hi) * (((UDItype) 1) << (sizeof (SItype) * 8)));
- return ((UDItype) hi << (sizeof (SItype) * 8)) | lo;
-}
-
-/* This version is needed to prevent recursion; fixunssfdi in libgcc
- calls fixsfdi, which in turn calls calls fixunssfdi. */
-
-static DItype
-local_fixunssfdi (SFtype original_a)
-{
- DFtype a = original_a;
- USItype hi, lo;
-
- hi = a / (((UDItype) 1) << (sizeof (SItype) * 8));
- lo = (a - ((DFtype) hi) * (((UDItype) 1) << (sizeof (SItype) * 8)));
- return ((UDItype) hi << (sizeof (SItype) * 8)) | lo;
-}
-
-#endif /* __powerpc64__ */
projects / gcc.git / commitdiff