Makefile.in (FPBIT_FUNCS, [...]): Remove.

	gcc:
	* Makefile.in (FPBIT_FUNCS, DPBIT_FUNCS, TPBIT_FUNCS): Remove.
	(libgcc-support): Remove $(FPBIT), $(DPBIT), $(TPBIT)
	dependencies.
	(libgcc.mvars): Remove FPBIT, FPBIT_FUNCS, DPBIT, DPBIT_FUNCS,
	TPBIT, TPBIT_FUNCS.
	* config/fp-bit.c, config/fp-bit.h: Move to ../libgcc.
	* config/arm/t-strongarm-elf (FPBIT, DPBIT, dp-bit.c, fp-bit.c):
	Remove.
	* config/arm/t-vxworks: Likewise.
	* config/arm/t-wince-pe: Likewise.
	* config/avr/t-avr (fp-bit.c, FPBIT): Remove.
	* config/bfin/t-bfin (FPBIT, DPBIT, dp-bit.c, fp-bit.c): Remove.
	* config/bfin/t-bfin-elf: Likewise.
	* config/bfin/t-bfin-linux: Likewise.
	* config/bfin/t-bfin-uclinux: Likewise.
	* config/cris/t-cris (FPBIT, DPBIT, dp-bit.c, tmplibgcc_fp_bit.c):
	Remove.
	* config/fr30/t-fr30: Likewise.
	* config/frv/t-frv: Likewise.
	* config/h8300/t-h8300 (FPBIT, fp-bit.c): Remove.
	* config/iq2000/t-iq2000 (FPBIT, DPBIT, dp-bit.c, fp-bit.c): Remove.
	* config/m32c/t-m32c: Likewise.
	* config/m32r/t-linux: (LIB2FUNCS_EXTRA, fp-bit.c, dp-bit.c): Remove.
	* config/m32r/t-m32r (FPBIT, DPBIT, dp-bit.c, fp-bit.c): Remove.
	* config/mcore/t-mcore: Likewise.
	* config/mep/t-mep: Likewise.
	* config/microblaze/t-microblaze: Likewise.
	* config/mips/t-linux64 (TPBIT, tp-bit.c): Remove.
	* config/mips/t-mips (FPBIT, DPBIT, dp-bit.c, fp-bit.c): Remove.
	* config/mips/t-sdemtk (FPBIT, DPBIT): Remove.
	* config/mips/t-sr71k (FPBIT, DPBIT, dp-bit.c, fp-bit.c): Remove.
	* config/mn10300/t-linux: Remove.
	* config/mn10300/t-mn10300 (FPBIT, DPBIT, dp-bit.c, fp-bit.c): Remove.
	* config/pdp11/t-pdp11: Likewise.
	* config/picochip/t-picochip (FPBIT, fp-bit.c): Remove.
	* config/rs6000/ppc64-fp.c: Move to ../libgcc/config/rs6000.
	* config/rs6000/t-aix43 (FPBIT, DPBIT, dp-bit.c, fp-bit.c): Remove.
	(LIB2FUNCS_EXTRA): Remove $(srcdir)/config/rs6000/ppc64-fp.c.
	* config/rs6000/t-aix52: Likewise.
	* config/rs6000/t-darwin (LIB2FUNCS_EXTRA): Remove
	$(srcdir)/config/rs6000/ppc64-fp.c.
	* config/rs6000/t-fprules-fpbit: Remove.
	* config/rs6000/t-linux64 (LIB2FUNCS_EXTRA): Remove.
	* config/rs6000/t-lynx (FPBIT, DPBIT, dp-bit.c, fp-bit.c): Remove.
	* config/sh/t-netbsd (FPBIT, DPBIT): Remove.
	* config/sh/t-sh (FPBIT, DPBIT, dp-bit.c, fp-bit.c): Remove.
	* config/sparc/t-elf: Likewise.
	* config/sparc/t-leon: Likewise.
	* config/sparc/t-leon3: Likewise.
	* config/spu/t-spu-elf: Likewise.
	(DPBIT_FUNCS): Remove.
	* config/stormy16/t-stormy16 (FPBIT, DPBIT, dp-bit.c, fp-bit.c): Remove.
	* config/v850/t-v850: Likewise.
	* config.gcc (avr-*-rtems*): Add avr/avr-lib.h to libgcc_tm_file.
	(avr-*-*): Likewise.
	(h8300-*-rtems*): Set libgcc_tm_file.
	(h8300-*-elf*): Likewise.
	(powerpc-*-eabisimaltivec*): Remove rs6000/t-fprules-fpbit from
	tmake_file.
	(powerpc-*-eabisim*): Likewise.
	(powerpc-*-elf*): Likewise.
	(powerpc-*-eabialtivec*): Likewise.
	(powerpc-xilinx-eabi*): Likewise.
	(powerpc-*-eabi*): Likewise.
	(powerpc-*-rtems*): Likewise.
	(powerpc-wrs-vxworks, powerpc-wrs-vxworksae): Likewise.
	(powerpcle-*-elf*): Likewise.
	(powerpcle-*-eabisim*): Likewise.
	(powerpcle-*-eabi*): Likewise.
	(rx-*-elf*): Add rx/rx-lib.h to libgcc_tm_file.
	(am33_2.0-*-linux*): Remove mn10300/t-linux from tmake_file.
	* doc/fragments.texi (Target Fragment, Floating Point Emulation):
	Remove.

	gcc/po:
	* EXCLUDES (config/fp-bit.c, config/fp-bit.h): Remove.

	libgcc:
	* Makefile.in (double_type_size, long_double_type_size): Set.
	Remove $(fpbit-in-libgcc) support.
	(FPBIT_FUNCS, DPBIT_FUNCS, TPBIT_FUNCS): New variables.
	(fpbit-src): New variable.
	($(fpbit-o), $(fpbit-s-o)): Use $(fpbit-src) instead of $(FPBIT).
	Compile with -DFLOAT $(FPBIT_CFLAGS).
	Use $<.
	($(dpbit-o), $(dpbit-s-o)): Use $(fpbit-src) instead of $(DPBIT).
	Compile with $(FPBIT_CFLAGS).
	Use $<.
	($(tpbit-o), $(tpbit-s-o): Use $(fpbit-src) instead of $(TPBIT).
	Compile with -DFLOAT $(TPBIT_CFLAGS).
	Use $<.
	* configure.ac (double_type_size, long_double_type_size):
	Determine and substitute.
	* configure: Regenerate.
	* fp-bit.c, fp-bit.h: New files.
	* config/avr/avr-lib.h, config/h8300/h8300-lib.h: New files.
	* config/mips/t-irix6 (TPBIT, $(gcc_objdir)/tp-bit.c): Remove.
	* config/mips/t-mips: New file.
	* config/mips/t-sdemtk: New file.
	* config/rs6000/ppc64-fp.c: New file.
	* config/rs6000/t-darwin (LIB2ADD): Add
	$(srcdir)/config/rs6000/ppc64-fp.c.
	* config/rs6000/t-ppc64-fp: New file.
	* config/rx/rx-lib.h: New file.
	* config/rx/t-rx (FPBIT): Set to true.
	($(gcc_objdir)/fp-bit.c): Remove.
	(DPBIT): Set to true only with -m64bit-doubles.
	($(gcc_objdir)/dp-bit.c): Remove.
	* config/sparc/t-softfp: Remove.
	* config/spu/t-elf: New file.
	* config/t-fdpbit, config/t-fpbit: New files.
	* config.host (m32c*-*-*): Add t-fdpbit to tmake_file.
	(mips*-*-*): Likewise.
	(arm-wrs-vxworks): Likewise.
	(arm*-*-freebsd*): Likewise.
	(avr-*-rtems*): Add t-fpbit to tmake_file.
	(avr-*-*): Likewise.
	(bfin*-elf*): Add t-fdpbit to tmake_file.
	(bfin*-uclinux*): Likewise.
	(bfin*-linux-uclibc*): Likewise.
	(bfin*-rtems*): New case.
	Add t-fdpbit to tmake_file.
	(bfin*-*): Add t-fdpbit to tmake_file.
	(crisv32-*-elf): Likewise.
	(cris-*-linux*): Likewise.
	(fr30-*-elf): Likewise.
	(frv-*-elf, frv-*-*linux*): Likewise.
	(h8300-*-rtems*, h8300-*-elf*): Add t-fpbit to tmake_file.
	(iq2000*-*-elf*): Add t-fdpbit to tmake_file.
	(m32r-*-elf*): Likewise.
	(m32rle-*-elf*): Likewise.
	(m32r-*-linux*): Likewise.
	(m32rle-*-linux*): Likewise.
	(mcore-*-elf): Add t-fdpbit to tmake_file.
	(microblaze*-*-*): Likewise.
	(mips-sgi-irix6.5*): Add t-tpbit to tmake_file.
	(mips*-*-netbsd*): Add mips/t-mips to tmake_file.
	(mips64*-*-linux*): Also handle mipsisa64*-*-linux*.
	Fix typo.
	Add mips/t-tpbit to tmake-file.
	(mips*-*-linux*): Fix typo.
	(mips*-sde-elf*): New case
	Add mips/t-sdemtk unless using newlib.
	(mipsisa64sr71k-*-elf*): Add t-fdpbit to tmake_file.
	(mipsisa64sb1-*-elf*): Add mips/t-mips to tmake_file.
	(mn10300-*-*): Likewise.
	(pdp11-*-*): Likewise.
	(picochip-*-*): Add t-fpbit to tmake_file.
	(powerpc-*-eabisimaltivec*): Likewise.
	(powerpc-*-eabisim*): Likewise.
	(powerpc-*-elf*): Likewise.
	(powerpc-*-eabialtivec*): Likewise.
	(powerpc-xilinx-eabi*): New case.
	Add t-fdpbit to tmake_file.
	(powerpc-*-eabi*):  Add t-fdpbit to tmake_file.
	(powerpc-*-rtems*): Likewise.
	(powerpc-*-linux*, powerpc64-*-linux*): Add rs6000/t-ppc64-fp to
	tmake_file.
	(powerpc-wrs-vxworks, powerpc-wrs-vxworksae): Add t-fdpbit to
	tmake_file.
	(powerpc-*-lynxos*): Likewise.
	(powerpcle-*-elf*): Likewise.
	(powerpcle-*-eabisim*): Likewise.
	(powerpcle-*-eabi*): Likewise.
	(rs6000-ibm-aix4.[3456789]*, powerpc-ibm-aix4.[3456789]*): Add
	t-fdpbit, rs6000/t-ppc64-fp to tmake_file.
	(rs6000-ibm-aix5.1.*, powerpc-ibm-aix5.1.*): Likewise.
	(rs6000-ibm-aix[56789].*, powerpc-ibm-aix[56789].*): Likewise.
	(rx-*-elf): Add t-fdpbit to tmake_file.
	(sh-*-elf*, sh[12346l]*-*-elf*, sh-*-linux*)
	(sh[2346lbe]*-*-linux*, sh-*-netbsdelf*, shl*-*-netbsdelf*)
	(sh5-*-netbsd*, sh5l*-*-netbsd*, sh64-*-netbsd*)
	(sh64l*-*-netbsd*): Add t-fdpbit to tmake_file except on
	sh*-*-netbsd*.
	(sh-*-rtems*): Add t-fdpbit to tmake_file.
	(sh-wrs-vxworks): Likewise.
	(sparc-*-elf*): Replace sparc/t-softfp by t-fdpbit in tmake_file.
	(sparc-*-linux*): Add t-fdpbit to tmake_file for *-leon*.
	(sparc-*-rtems*, sparc64-*-rtems*): Split off ...
	(sparc64-*-rtems*): ... new case.
	(sparc-*-rtems*): Add t-fdpbit to tmake_file.
	(spu-*-elf*): Likewise.
	Add spu/t-elf to tmake_file.
	(v850*-*-*): Add t-fdpbit to tmake_file.
	(xstormy16-*-elf): Likewise.
	(am33_2.0-*-linux*): Add t-fdpbit to tmake_file.
	(mep*-*-*): Likewise.

From-SVN: r177448

1 files changed, 507 insertions, 0 deletions

diff --git a/libgcc/fp-bit.h b/libgcc/fp-bit.h
new file mode 100644
index 0000000..1ae0741
--- /dev/null
+++ b/libgcc/fp-bit.h
@@ -0,0 +1,507 @@
+/* Header file for fp-bit.c.  */
+/* Copyright (C) 2000, 2002, 2003, 2006, 2009, 2010, 2011
+   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_FP_BIT_H
+#define GCC_FP_BIT_H
+
+/* Defining FINE_GRAINED_LIBRARIES allows one to select which routines
+   from this file are compiled via additional -D options.
+
+   This avoids the need to pull in the entire fp emulation library
+   when only a small number of functions are needed.
+
+   If FINE_GRAINED_LIBRARIES is not defined, then compile every
+   suitable routine.  */
+#ifndef FINE_GRAINED_LIBRARIES
+#define L_pack_df
+#define L_unpack_df
+#define L_pack_sf
+#define L_unpack_sf
+#define L_addsub_sf
+#define L_addsub_df
+#define L_mul_sf
+#define L_mul_df
+#define L_div_sf
+#define L_div_df
+#define L_fpcmp_parts_sf
+#define L_fpcmp_parts_df
+#define L_compare_sf
+#define L_compare_df
+#define L_eq_sf
+#define L_eq_df
+#define L_ne_sf
+#define L_ne_df
+#define L_gt_sf
+#define L_gt_df
+#define L_ge_sf
+#define L_ge_df
+#define L_lt_sf
+#define L_lt_df
+#define L_le_sf
+#define L_le_df
+#define L_unord_sf
+#define L_unord_df
+#define L_usi_to_sf
+#define L_usi_to_df
+#define L_si_to_sf
+#define L_si_to_df
+#define L_sf_to_si
+#define L_df_to_si
+#define L_f_to_usi
+#define L_df_to_usi
+#define L_negate_sf
+#define L_negate_df
+#define L_make_sf
+#define L_make_df
+#define L_sf_to_df
+#define L_df_to_sf
+#ifdef FLOAT
+#define L_thenan_sf
+#else
+#define L_thenan_df
+#endif
+#endif /* ! FINE_GRAINED_LIBRARIES */
+
+#if __LDBL_MANT_DIG__ == 113 || __LDBL_MANT_DIG__ == 106
+# if defined(TFLOAT) || defined(L_sf_to_tf) || defined(L_df_to_tf)
+#  define TMODES
+# endif
+#endif
+
+typedef float SFtype __attribute__ ((mode (SF)));
+typedef float DFtype __attribute__ ((mode (DF)));
+#ifdef TMODES
+typedef float TFtype __attribute__ ((mode (TF)));
+#endif
+
+typedef int HItype __attribute__ ((mode (HI)));
+typedef int SItype __attribute__ ((mode (SI)));
+typedef int DItype __attribute__ ((mode (DI)));
+#ifdef TMODES
+typedef int TItype __attribute__ ((mode (TI)));
+#endif
+
+/* The type of the result of a floating point comparison.  This must
+   match `__libgcc_cmp_return__' in GCC for the target.  */
+#ifndef CMPtype
+typedef int CMPtype __attribute__ ((mode (__libgcc_cmp_return__)));
+#endif
+
+typedef unsigned int UHItype __attribute__ ((mode (HI)));
+typedef unsigned int USItype __attribute__ ((mode (SI)));
+typedef unsigned int UDItype __attribute__ ((mode (DI)));
+#ifdef TMODES
+typedef unsigned int UTItype __attribute__ ((mode (TI)));
+#endif
+
+#define MAX_USI_INT  (~(USItype)0)
+#define MAX_SI_INT   ((SItype) (MAX_USI_INT >> 1))
+#define BITS_PER_SI  (4 * BITS_PER_UNIT)
+#ifdef TMODES
+#define MAX_UDI_INT  (~(UDItype)0)
+#define MAX_DI_INT   ((DItype) (MAX_UDI_INT >> 1))
+#define BITS_PER_DI  (8 * BITS_PER_UNIT)
+#endif
+
+#ifdef FLOAT_ONLY
+#define NO_DI_MODE
+#endif
+
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+#define FLOAT_BIT_ORDER_MISMATCH
+#endif
+
+#if __BYTE_ORDER__ != __FLOAT_WORD_ORDER__
+#define FLOAT_WORD_ORDER_MISMATCH
+#endif
+
+#ifdef TFLOAT
+# ifndef TMODES
+#  error "TFLOAT requires long double to have 113 bits of mantissa"
+# endif
+
+#	define PREFIXFPDP tp
+#	define PREFIXSFDF tf
+#	define NGARDS 10L /* Is this right? */
+#	define GARDROUND 0x1ff
+#	define GARDMASK  0x3ff
+#	define GARDMSB   0x200
+#	define FRAC_NBITS 128
+
+# if __LDBL_MANT_DIG__ == 113 /* IEEE quad */
+#	define EXPBITS 15
+#	define EXPBIAS 16383
+#	define EXPMAX (0x7fff)
+#	define QUIET_NAN ((TItype)0x8 << 108)
+#	define FRACHIGH  ((TItype)0x8 << 124)
+#	define FRACHIGH2 ((TItype)0xc << 124)
+#	define FRACBITS 112
+# endif
+
+# if __LDBL_MANT_DIG__ == 106 /* IBM extended (double+double) */
+#	define EXPBITS 11
+#	define EXPBIAS 1023
+#	define EXPMAX (0x7ff)
+#	define QUIET_NAN ((TItype)0x8 << (48 + 64))
+#	define FRACHIGH  ((TItype)0x8 << 124)
+#	define FRACHIGH2 ((TItype)0xc << 124)
+#	define FRACBITS 105
+#	define HALFFRACBITS 52
+#	define HALFSHIFT 64
+# endif
+
+#	define pack_d __pack_t
+#	define unpack_d __unpack_t
+#	define __fpcmp_parts __fpcmp_parts_t
+	typedef UTItype fractype;
+	typedef UDItype halffractype;
+	typedef USItype qrtrfractype;
+#define qrtrfractype qrtrfractype
+	typedef TFtype FLO_type;
+	typedef TItype intfrac;
+#elif defined FLOAT
+#	define NGARDS    7L
+#	define GARDROUND 0x3f
+#	define GARDMASK  0x7f
+#	define GARDMSB   0x40
+#	define EXPBITS 8
+#	define EXPBIAS 127
+#	define FRACBITS 23
+#	define EXPMAX (0xff)
+#	define QUIET_NAN 0x100000L
+#	define FRAC_NBITS 32
+#	define FRACHIGH  0x80000000L
+#	define FRACHIGH2 0xc0000000L
+#	define pack_d __pack_f
+#	define unpack_d __unpack_f
+#	define __fpcmp_parts __fpcmp_parts_f
+	typedef USItype fractype;
+	typedef UHItype halffractype;
+	typedef SFtype FLO_type;
+	typedef SItype intfrac;
+
+#else
+#	define PREFIXFPDP dp
+#	define PREFIXSFDF df
+#	define NGARDS 8L
+#	define GARDROUND 0x7f
+#	define GARDMASK  0xff
+#	define GARDMSB   0x80
+#	define EXPBITS 11
+#	define EXPBIAS 1023
+#	define FRACBITS 52
+#	define EXPMAX (0x7ff)
+#	define QUIET_NAN 0x8000000000000LL
+#	define FRAC_NBITS 64
+#	define FRACHIGH  0x8000000000000000LL
+#	define FRACHIGH2 0xc000000000000000LL
+#	define pack_d __pack_d
+#	define unpack_d __unpack_d
+#	define __fpcmp_parts __fpcmp_parts_d
+	typedef UDItype fractype;
+	typedef USItype halffractype;
+	typedef DFtype FLO_type;
+	typedef DItype intfrac;
+#endif /* FLOAT */
+
+#ifdef TFLOAT
+#	define add 		__addtf3
+#	define sub 		__subtf3
+#	define multiply 	__multf3
+#	define divide 		__divtf3
+#	define compare 		__cmptf2
+#	define _eq_f2 		__eqtf2
+#	define _ne_f2 		__netf2
+#	define _gt_f2 		__gttf2
+#	define _ge_f2 		__getf2
+#	define _lt_f2 		__lttf2
+#	define _le_f2 		__letf2
+#	define _unord_f2	__unordtf2
+#	define usi_to_float 	__floatunsitf
+#	define si_to_float 	__floatsitf
+#	define float_to_si 	__fixtfsi
+#	define float_to_usi 	__fixunstfsi
+#	define negate 		__negtf2
+#	define tf_to_sf		__trunctfsf2
+#	define tf_to_df		__trunctfdf2
+#elif defined FLOAT
+#	define add 		__addsf3
+#	define sub 		__subsf3
+#	define multiply 	__mulsf3
+#	define divide 		__divsf3
+#	define compare 		__cmpsf2
+#	define _eq_f2 		__eqsf2
+#	define _ne_f2 		__nesf2
+#	define _gt_f2 		__gtsf2
+#	define _ge_f2 		__gesf2
+#	define _lt_f2 		__ltsf2
+#	define _le_f2 		__lesf2
+#	define _unord_f2	__unordsf2
+#	define usi_to_float 	__floatunsisf
+#	define si_to_float 	__floatsisf
+#	define float_to_si 	__fixsfsi
+#	define float_to_usi 	__fixunssfsi
+#	define negate 		__negsf2
+#	define sf_to_df		__extendsfdf2
+#	define sf_to_tf		__extendsftf2
+#else
+#	define add 		__adddf3
+#	define sub 		__subdf3
+#	define multiply 	__muldf3
+#	define divide 		__divdf3
+#	define compare 		__cmpdf2
+#	define _eq_f2 		__eqdf2
+#	define _ne_f2 		__nedf2
+#	define _gt_f2 		__gtdf2
+#	define _ge_f2 		__gedf2
+#	define _lt_f2 		__ltdf2
+#	define _le_f2 		__ledf2
+#	define _unord_f2	__unorddf2
+#	define usi_to_float 	__floatunsidf
+#	define si_to_float 	__floatsidf
+#	define float_to_si 	__fixdfsi
+#	define float_to_usi 	__fixunsdfsi
+#	define negate 		__negdf2
+#	define df_to_sf		__truncdfsf2
+#	define df_to_tf		__extenddftf2
+#endif /* FLOAT */
+
+#ifndef INLINE
+#define INLINE __inline__
+#endif
+
+/* Preserve the sticky-bit when shifting fractions to the right.  */
+#define LSHIFT(a, s) { a = (a >> s) | !!(a & (((fractype) 1 << s) - 1)); }
+
+/* numeric parameters */
+/* F_D_BITOFF is the number of bits offset between the MSB of the mantissa
+   of a float and of a double. Assumes there are only two float types.
+   (double::FRAC_BITS+double::NGARDS-(float::FRAC_BITS-float::NGARDS))
+ */
+#define F_D_BITOFF (52+8-(23+7))
+
+#ifdef TMODES
+# define F_T_BITOFF (__LDBL_MANT_DIG__-1+10-(23+7))
+# define D_T_BITOFF (__LDBL_MANT_DIG__-1+10-(52+8))
+#endif
+
+
+#define NORMAL_EXPMIN (-(EXPBIAS)+1)
+#define IMPLICIT_1 ((fractype)1<<(FRACBITS+NGARDS))
+#define IMPLICIT_2 ((fractype)1<<(FRACBITS+1+NGARDS))
+
+/* common types */
+
+typedef enum
+{
+  CLASS_SNAN,
+  CLASS_QNAN,
+  CLASS_ZERO,
+  CLASS_NUMBER,
+  CLASS_INFINITY
+} fp_class_type;
+
+typedef struct
+{
+#ifdef SMALL_MACHINE
+  char class;
+  unsigned char sign;
+  short normal_exp;
+#else
+  fp_class_type class;
+  unsigned int sign;
+  int normal_exp;
+#endif
+
+  union
+    {
+      fractype ll;
+      halffractype l[2];
+    } fraction;
+} fp_number_type;
+
+typedef union
+{
+  FLO_type value;
+  fractype value_raw;
+
+#ifndef FLOAT
+# ifdef qrtrfractype
+  qrtrfractype qwords[4];
+# else
+  halffractype words[2];
+# endif
+#endif
+
+#ifdef FLOAT_BIT_ORDER_MISMATCH
+  struct
+    {
+      fractype fraction:FRACBITS __attribute__ ((packed));
+      unsigned int exp:EXPBITS __attribute__ ((packed));
+      unsigned int sign:1 __attribute__ ((packed));
+    }
+  bits;
+#endif
+
+#ifdef _DEBUG_BITFLOAT
+  struct
+    {
+      unsigned int sign:1 __attribute__ ((packed));
+      unsigned int exp:EXPBITS __attribute__ ((packed));
+      fractype fraction:FRACBITS __attribute__ ((packed));
+    }
+  bits_big_endian;
+
+  struct
+    {
+      fractype fraction:FRACBITS __attribute__ ((packed));
+      unsigned int exp:EXPBITS __attribute__ ((packed));
+      unsigned int sign:1 __attribute__ ((packed));
+    }
+  bits_little_endian;
+#endif
+}
+FLO_union_type;
+
+/* Prototypes.  */
+
+#if defined(L_pack_df) || defined(L_pack_sf) || defined(L_pack_tf)
+extern FLO_type pack_d (const fp_number_type *);
+#endif
+
+extern void unpack_d (FLO_union_type *, fp_number_type *);
+
+#if defined(L_addsub_sf) || defined(L_addsub_df) || defined(L_addsub_tf)
+extern FLO_type add (FLO_type, FLO_type);
+extern FLO_type sub (FLO_type, FLO_type);
+#endif
+
+#if defined(L_mul_sf) || defined(L_mul_df) || defined(L_mul_tf)
+extern FLO_type multiply (FLO_type, FLO_type);
+#endif
+
+#if defined(L_div_sf) || defined(L_div_df) || defined(L_div_tf)
+extern FLO_type divide (FLO_type, FLO_type);
+#endif
+
+extern int __fpcmp_parts (fp_number_type *, fp_number_type *);
+
+#if defined(L_compare_sf) || defined(L_compare_df) || defined(L_compare_tf)
+extern CMPtype compare (FLO_type, FLO_type);
+#endif
+
+#if defined(L_eq_sf) || defined(L_eq_df) || defined(L_eq_tf)
+extern CMPtype _eq_f2 (FLO_type, FLO_type);
+#endif
+
+#if defined(L_ne_sf) || defined(L_ne_df) || defined(L_ne_tf)
+extern CMPtype _ne_f2 (FLO_type, FLO_type);
+#endif
+
+#if defined(L_gt_sf) || defined(L_gt_df) || defined(L_gt_tf)
+extern CMPtype _gt_f2 (FLO_type, FLO_type);
+#endif
+
+#if defined(L_ge_sf) || defined(L_ge_df) || defined(L_ge_tf)
+extern CMPtype _ge_f2 (FLO_type, FLO_type);
+#endif
+
+#if defined(L_lt_sf) || defined(L_lt_df) || defined(L_lt_tf)
+extern CMPtype _lt_f2 (FLO_type, FLO_type);
+#endif
+
+#if defined(L_le_sf) || defined(L_le_df) || defined(L_le_tf)
+extern CMPtype _le_f2 (FLO_type, FLO_type);
+#endif
+
+#if defined(L_unord_sf) || defined(L_unord_df) || defined(L_unord_tf)
+extern CMPtype _unord_f2 (FLO_type, FLO_type);
+#endif
+
+#if defined(L_si_to_sf) || defined(L_si_to_df) || defined(L_si_to_tf)
+extern FLO_type si_to_float (SItype);
+#endif
+
+#if defined(L_sf_to_si) || defined(L_df_to_si) || defined(L_tf_to_si)
+extern SItype float_to_si (FLO_type);
+#endif
+
+#if defined(L_tf_to_usi)
+extern USItype float_to_usi (FLO_type);
+#endif
+
+#if defined(L_usi_to_sf) || defined(L_usi_to_df) || defined(L_usi_to_tf)
+extern FLO_type usi_to_float (USItype);
+#endif
+
+#if defined(L_negate_sf) || defined(L_negate_df) || defined(L_negate_tf)
+extern FLO_type negate (FLO_type);
+#endif
+
+#ifdef FLOAT
+#if defined(L_make_sf)
+extern SFtype __make_fp (fp_class_type, unsigned int, int, USItype);
+#endif
+#ifndef FLOAT_ONLY
+extern DFtype __make_dp (fp_class_type, unsigned int, int, UDItype);
+#if defined(L_sf_to_df)
+extern DFtype sf_to_df (SFtype);
+#endif
+#if defined(L_sf_to_tf) && defined(TMODES)
+extern TFtype sf_to_tf (SFtype);
+#endif
+#endif /* ! FLOAT_ONLY */
+#endif /* FLOAT */
+
+#ifndef FLOAT
+extern SFtype __make_fp (fp_class_type, unsigned int, int, USItype);
+#if defined(L_make_df)
+extern DFtype __make_dp (fp_class_type, unsigned int, int, UDItype);
+#endif
+#if defined(L_df_to_sf)
+extern SFtype df_to_sf (DFtype);
+#endif
+#if defined(L_df_to_tf) && defined(TMODES)
+extern TFtype df_to_tf (DFtype);
+#endif
+#endif /* ! FLOAT */
+
+#ifdef TMODES
+extern DFtype __make_dp (fp_class_type, unsigned int, int, UDItype);
+extern TFtype __make_tp (fp_class_type, unsigned int, int, UTItype);
+#ifdef TFLOAT
+#if defined(L_tf_to_sf)
+extern SFtype tf_to_sf (TFtype);
+#endif
+#if defined(L_tf_to_df)
+extern DFtype tf_to_df (TFtype);
+#endif
+#if defined(L_di_to_tf)
+extern TFtype di_to_df (DItype);
+#endif
+#endif /* TFLOAT */
+#endif /* TMODES */
+
+#endif /* ! GCC_FP_BIT_H */