gcc/libgcc/soft-fp/soft-fp.h
Rainer Orth aca0b0b315 soft-fp: Move to ../libgcc.
gcc:
	* config/soft-fp: Move to ../libgcc.
	* Makefile.in (SFP_MACHINE): Remove.
	(libgcc-support): Remove $(SFP_MACHINE) dependency.
	* config/arm/sfp-machine.h: Move to ../libgcc/config/arm.
	* config/arm/t-arm-softfp: Move to
	../libgcc/config/arm/t-softfp.
	* config/c6x/sfp-machine.h: Move to ../libgcc/config/c6x.
	* config/c6x/t-c6x-softfp: Remove.
	* config/i386/sfp-machine.h: Move to ../libgcc/config/i386.
	* config/i386/t-fprules-softfp: Move to
	../libgcc/config/t-softfp-tf.
	* config/ia64/sfp-machine.h: Move to ../libgcc/config/ia64.
	* config/ia64/t-fprules-softfp: Remove.
	* config/lm32/sfp-machine.h: Move to ../libgcc/config/lm32.
	* config/lm32/t-fprules-softfp: Remove.
	* config/moxie/sfp-machine.h: Remove.
	* config/moxie/t-moxie-softfp: Remove.
	* config/rs6000/darwin-ldouble-format: Move to
	../libgcc/config/rs6000/ibm-ldouble-format.
	* config/rs6000/darwin-ldouble.c: Move to
	../libgcc/config/rs6000/ibm-ldouble.c
	* config/rs6000/libgcc-ppc-glibc.ver: Move to ../libgcc/config/rs6000.
	* config/rs6000/libgcc-ppc64.ver: Likewise.
	* config/rs6000/sfp-machine.h: Likewise.
	* config/rs6000/t-aix43 (SHLIB_MAPFILES): Remove
	$(srcdir)/config/rs6000/libgcc-ppc64.ver.
	(LIB2FUNCS_EXTRA): Remove.
	(TARGET_LIBGCC2_CFLAGS): Remove.
	* config/rs6000/t-aix52: Likewise
	* config/rs6000/t-darwin (LIB2FUNCS_EXTRA): Remove
	$(srcdir)/config/rs6000/darwin-ldouble.c.
	(SHLIB_MAPFILES): Remove.
	* config/rs6000/t-darwin64 (LIB2FUNCS_EXTRA): Remove
	$(srcdir)/config/rs6000/darwin-ldouble.c.
	* config/rs6000/t-fprules-softfp: Move to
	../libgcc/config/t-softfp-sfdf.
	* config/rs6000/t-freebsd: Move to ../libgcc/config/rs6000.
	* config/rs6000/t-linux64 (softfp_wrap_start, softfp_wrap_end): Remove.
	* config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Remove
	$(srcdir)/config/rs6000/darwin-ldouble.c.
	* config/score/sfp-machine.h: Move to ../libgcc/config/score.
	* config/score/t-score-softfp: Remove.
	* config.gcc (arm*-*-linux*): Remove arm/t-arm-softfp,
	soft-fp/t-softfp from tmake_file.
	(arm*-*-uclinux*): Likewise.
	(arm*-*-ecos-elf): Likewise.
	(arm*-*-eabi*, arm*-*-symbianelf*): Likewise.
	(arm*-*-rtems*): Likewise.
	(arm*-*-elf): Likewise.
	(moxie-*-elf): Remove moxie/t-moxie-softfp, soft-fp/t-softfp from
	tmake_file.
	(moxie-*-uclinux*): Likewise.
	(moxie-*-rtems*): Likewise.
	(lm32-*-elf*): Remove lm32/t-fprules-softfp, soft-fp/t-softfp from
	tmake_file.
	(lm32-*-rtems*): Likewise.
	(lm32-*-uclinux*): Likewise.
	(powerpc-*-freebsd*): Remove rs6000/t-freebsd,
	rs6000/t-fprules-softfp, soft-fp/t-softfp from tmake_file.
	(powerpc-*-linux*, powerpc64-*-linux*): Remove
	rs6000/t-fprules-softfp, soft-fp/t-softfp from tmake_file.
	(score-*-elf): Remove score/t-score-softfp, soft-fp/t-softfp from
	tmake_file.
	(tic6x-*-elf): Remove c6x/t-c6x-softfp, soft-fp/t-softfp from
	tmake_file.
	(tic6x-*-uclinux): Likewise.
	(i[34567]86-*-darwin*, x86_64-*-darwin*): Remove i386/t-fprules-softfp,
	soft-fp/t-softfp from tmake_file.
	(i[34567]86-*-linux*, x86_64-*-linux*, i[34567]86-*-kfreebsd*-gnu)
	(x86_64-*-kfreebsd*-gnu, i[34567]86-*-gnu*): Likewise.
	(i[34567]86-*-solaris2*, x86_64-*-solaris2.1[0-9]*): Likewise.
	(i[34567]86-*-cygwin*, i[34567]86-*-mingw*, x86_64-*-mingw*):
	Likewise.
	(i[34567]86-*-freebsd*, x86_64-*-freebsd*): Likewise.

	libgcc:
	* config/t-softfp: Remove.
	* soft-fp: Moved from ../gcc/config.
	* soft-fp/README: Remove t-softfp reference.
	* soft-fp/t-softfp: Move to config/t-softfp.
	(softfp_machine_header): Remove.
	(softfp_file_list): Remove config subdir.
	(soft-fp-objects): New variable.
	($(soft-fp-objects)): Set INTERNAL_CFLAGS.
	(LIB2FUNCS_EXTRA): Add to LIB2ADD instead.
	(SFP_MACHINE, $(SFP_MACHINE)): Remove.
	* config/t-softfp-excl: New file.
	* config/t-softfp-sfdf: New file.
	* config/t-softfp-tf: New file.
	* config/no-sfp-machine.h: New file.
	* config/arm/sfp-machine.h: New file.
	* config/arm/t-softfp: New file.
	* config/c6x/sfp-machine.h: New file.
	* config/i386/32/t-fprules-softfp: Rename to ...
	* config/i386/32/t-softfp: ... this.
	(tifunctions, LIB2ADD): Remove.
	(softfp_int_modes): Override.
	* config/i386/64/t-softfp-compat (tf-functions): Remove config
	subdir.
	* config/i386/64/eqtf2.c: Likewise.
	* config/i386/64/getf2.c: Likewise.
	* config/i386/64/letf2.c: Likewise.
	* config/ia64/sft-machine.h: New file.
	* config/ia64/t-fprules-softfp: Rename to ...
	* config/ia64/t-softfp: ... this.
	* config/lm32/sfp-machine.h: New file.
	* config/moxie/t-moxie-softfp: Remove.
	* config/rs6000/ibm-ldouble-format: New file.
	* config/rs6000/ibm-ldouble.c: New file.
	* config/rs6000/libgcc-ppc-glibc.ver: New file
	* config/rs6000/libgcc-ppc64.ver: New file
	* config/rs6000/sfp-machine.h: New file.
	* config/rs6000/t-freebsd: New file.
	* config/rs6000/t-ibm-ldouble: New file.
	* config/rs6000/t-ldbl128: Use $(srcdir) to refer to
	libgcc-ppc-glibc.ver.
	* config/rs6000/t-linux64: New file.
	* config/rs6000/t-ppccomm (LIB2ADD): Add
	$(srcdir)/config/rs6000/ibm-ldouble.c.
	* config/rs6000/t-ppccomm-ldbl: New file.
	* config/score/sfp-machine.h: New file.
	* config.host (sfp_machine_header): Explain.
	(arm*-*-linux*): Add t-softfp-sfdf, t-softfp-excl, arm/t-softfp,
	t-softfp to tmake_file.
	(arm*-*-uclinux*): Likewise.
	(arm*-*-ecos-elf): Likewise.
	(arm*-*-eabi*, arm*-*-symbianelf*): Likewise.
	(arm*-*-rtems*): Likewise.
	(arm*-*-elf): Likewise.
	(ia64*-*-linux*): Replace ia64/t-fprules-softfp by ia64/t-softfp
	in tmake_file.
	Add t-softfp-tf, t-softfp-excl, t-softfp to tmake_file.
	(lm32-*-elf*, lm32-*-rtems*): Add t-softfp-sfdf, t-softfp to tmake_file.
	(lm32-*-uclinux*): Likewise.
	(moxie-*-*): Replace moxie/t-moxie-softfp by t-softfp-sfdf,
	t-softfp-excl, t-softfp.
	(powerpc-*-darwin*): Add rs6000/t-ibm-ldouble to tmake_file.
	(powerpc64-*-darwin*): Likewise.
	(powerpc-*-freebsd*): Add t-softfp-sfdf, t-softfp-excl, t-softfp
	to tmake_file.
	(powerpc-*-eabisimaltivec*): Add rs6000/t-ppccomm-ldbl to
	tmake_file.
	(powerpc-*-eabisim*): Likewise.
	(powerpc-*-elf*): Likewise.
	(powerpc-*-eabialtivec*): Likewise.
	(powerpc-xilinx-eabi*): Likewise.
	(powerpc-*-rtems*): Likewise.
	(powerpc-*-linux*, powerpc64-*-linux*): Add t-softfp-sfdf,
	t-softfp-excl, t-softfp to tmake_file.
	(powerpc-wrs-vxworks, powerpc-wrs-vxworksae): Add
	rs6000/t-ppccomm-ldbl to tmake_file.
	(powerpcle-*-elf*): Likewise.
	(powerpcle-*-eabisim*): Likewise.
	(powerpcle-*-eabi*): Likewise.
	(rs6000-ibm-aix4.[3456789]*, powerpc-ibm-aix4.[3456789]*): Add
	rs6000/t-ibm-ldouble to tmake_file.
	(rs6000-ibm-aix5.1.*, powerpc-ibm-aix5.1.*): Likewise.
	(rs6000-ibm-aix[56789].*, powerpc-ibm-aix[56789].*): Likewise.
	(score-*-elf): Add t-softfp-sfdf, t-softfp-excl, t-softfp to tmake_file.
	(tic6x-*-*): Likewise.
	(i[34567]86-*-darwin*, x86_64-*-darwin*,
	i[34567]86-*-kfreebsd*-gnu, x86_64-*-kfreebsd*-gnu,
	i[34567]86-*-linux*, x86_64-*-linux*, i[34567]86-*-gnu*,
	i[34567]86-*-solaris2*, x86_64-*-solaris2.1[0-9]*,
	i[34567]86-*-cygwin*, i[34567]86-*-mingw*, x86_64-*-mingw*,
	i[34567]86-*-freebsd*, x86_64-*-freebsd*): Add t-softfp-tf,
	t-softfp to tmake_file.
	* configure.ac (sfp_machine_header): Provide default if unset.
	Substitute.
	Link sfp-machine.h to config/$sfp_machine_header.
	* configure: Regenerate.

From-SVN: r177452
2011-08-05 15:13:48 +00:00

214 lines
5.4 KiB
C

/* Software floating-point emulation.
Copyright (C) 1997,1998,1999,2000,2002,2003,2005,2006
Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Richard Henderson (rth@cygnus.com),
Jakub Jelinek (jj@ultra.linux.cz),
David S. Miller (davem@redhat.com) and
Peter Maydell (pmaydell@chiark.greenend.org.uk).
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
In addition to the permissions in the GNU Lesser General Public
License, the Free Software Foundation gives you unlimited
permission to link the compiled version of this file into
combinations with other programs, and to distribute those
combinations without any restriction coming from the use of this
file. (The Lesser General Public License restrictions do apply in
other respects; for example, they cover modification of the file,
and distribution when not linked into a combine executable.)
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA. */
#ifndef SOFT_FP_H
#define SOFT_FP_H
#ifdef _LIBC
#include <sfp-machine.h>
#else
#include "sfp-machine.h"
#endif
/* Allow sfp-machine to have its own byte order definitions. */
#ifndef __BYTE_ORDER
#ifdef _LIBC
#include <endian.h>
#else
#error "endianness not defined by sfp-machine.h"
#endif
#endif
#define _FP_WORKBITS 3
#define _FP_WORK_LSB ((_FP_W_TYPE)1 << 3)
#define _FP_WORK_ROUND ((_FP_W_TYPE)1 << 2)
#define _FP_WORK_GUARD ((_FP_W_TYPE)1 << 1)
#define _FP_WORK_STICKY ((_FP_W_TYPE)1 << 0)
#ifndef FP_RND_NEAREST
# define FP_RND_NEAREST 0
# define FP_RND_ZERO 1
# define FP_RND_PINF 2
# define FP_RND_MINF 3
#endif
#ifndef FP_ROUNDMODE
# define FP_ROUNDMODE FP_RND_NEAREST
#endif
/* By default don't care about exceptions. */
#ifndef FP_EX_INVALID
#define FP_EX_INVALID 0
#endif
#ifndef FP_EX_OVERFLOW
#define FP_EX_OVERFLOW 0
#endif
#ifndef FP_EX_UNDERFLOW
#define FP_EX_UNDERFLOW 0
#endif
#ifndef FP_EX_DIVZERO
#define FP_EX_DIVZERO 0
#endif
#ifndef FP_EX_INEXACT
#define FP_EX_INEXACT 0
#endif
#ifndef FP_EX_DENORM
#define FP_EX_DENORM 0
#endif
#ifdef _FP_DECL_EX
#define FP_DECL_EX \
int _fex = 0; \
_FP_DECL_EX
#else
#define FP_DECL_EX int _fex = 0
#endif
#ifndef FP_INIT_ROUNDMODE
#define FP_INIT_ROUNDMODE do {} while (0)
#endif
#ifndef FP_HANDLE_EXCEPTIONS
#define FP_HANDLE_EXCEPTIONS do {} while (0)
#endif
#ifndef FP_INHIBIT_RESULTS
/* By default we write the results always.
* sfp-machine may override this and e.g.
* check if some exceptions are unmasked
* and inhibit it in such a case.
*/
#define FP_INHIBIT_RESULTS 0
#endif
#define FP_SET_EXCEPTION(ex) \
_fex |= (ex)
#define FP_UNSET_EXCEPTION(ex) \
_fex &= ~(ex)
#define FP_CLEAR_EXCEPTIONS \
_fex = 0
#define _FP_ROUND_NEAREST(wc, X) \
do { \
if ((_FP_FRAC_LOW_##wc(X) & 15) != _FP_WORK_ROUND) \
_FP_FRAC_ADDI_##wc(X, _FP_WORK_ROUND); \
} while (0)
#define _FP_ROUND_ZERO(wc, X) (void)0
#define _FP_ROUND_PINF(wc, X) \
do { \
if (!X##_s && (_FP_FRAC_LOW_##wc(X) & 7)) \
_FP_FRAC_ADDI_##wc(X, _FP_WORK_LSB); \
} while (0)
#define _FP_ROUND_MINF(wc, X) \
do { \
if (X##_s && (_FP_FRAC_LOW_##wc(X) & 7)) \
_FP_FRAC_ADDI_##wc(X, _FP_WORK_LSB); \
} while (0)
#define _FP_ROUND(wc, X) \
do { \
if (_FP_FRAC_LOW_##wc(X) & 7) \
FP_SET_EXCEPTION(FP_EX_INEXACT); \
switch (FP_ROUNDMODE) \
{ \
case FP_RND_NEAREST: \
_FP_ROUND_NEAREST(wc,X); \
break; \
case FP_RND_ZERO: \
_FP_ROUND_ZERO(wc,X); \
break; \
case FP_RND_PINF: \
_FP_ROUND_PINF(wc,X); \
break; \
case FP_RND_MINF: \
_FP_ROUND_MINF(wc,X); \
break; \
} \
} while (0)
#define FP_CLS_NORMAL 0
#define FP_CLS_ZERO 1
#define FP_CLS_INF 2
#define FP_CLS_NAN 3
#define _FP_CLS_COMBINE(x,y) (((x) << 2) | (y))
#include "op-1.h"
#include "op-2.h"
#include "op-4.h"
#include "op-8.h"
#include "op-common.h"
/* Sigh. Silly things longlong.h needs. */
#define UWtype _FP_W_TYPE
#define W_TYPE_SIZE _FP_W_TYPE_SIZE
typedef int QItype __attribute__((mode(QI)));
typedef int SItype __attribute__((mode(SI)));
typedef int DItype __attribute__((mode(DI)));
typedef unsigned int UQItype __attribute__((mode(QI)));
typedef unsigned int USItype __attribute__((mode(SI)));
typedef unsigned int UDItype __attribute__((mode(DI)));
#if _FP_W_TYPE_SIZE == 32
typedef unsigned int UHWtype __attribute__((mode(HI)));
#elif _FP_W_TYPE_SIZE == 64
typedef USItype UHWtype;
#endif
#ifndef CMPtype
#define CMPtype int
#endif
#define SI_BITS (__CHAR_BIT__ * (int)sizeof(SItype))
#define DI_BITS (__CHAR_BIT__ * (int)sizeof(DItype))
#ifndef umul_ppmm
#ifdef _LIBC
#include <stdlib/longlong.h>
#else
#include "longlong.h"
#endif
#endif
#ifdef _LIBC
#include <stdlib.h>
#else
extern void abort (void);
#endif
#endif