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gcc/libgcc/dfp-bit.h
Michael Meissner 781183595a Add conversions between _Float128 and Decimal. 
This patch implements conversions between _Float128 and the 3 Decimal floating
types.  It does this by extendending the dfp-bit conversions to add a new
binary floating point type (KF), and doing the conversions in the same manner
as the other binary/decimal conversions.

For conversions from _Float128 to Decimal, this patch uses a function
(__sprintfkf) instead of the sprintf function to convert long double values to
strings.  The __sprintfkf function determines if GLIBC 2.32 or newer is used
and calls the IEEE 128-bit version of sprintf (__sprintfieee128).  If the GLIBC
is earlier than 2.32, the code will convert _Float128 to __ibm128 and then use
the normal sprintf to convert this value.

For conversions from Decimal to _Float128, this patch uses a function
(__strtokf) instead of strtold to convert the strings from the Decimal
conversion to long double.  The __strtokf function determines if GLIBC 2.32 or
newer is used, and if it is, calls the IEEE 128-bit version (__strtoieee128).
If the GLIBC is earlier than 2.32, the code will call strtold and convert the
__ibm128 value to _Float128.

These functions will primarily be used if/when the default PowerPC long double
type is changed to IEEE 128-bit, but they could also be used if the user
explicitly converts _Float128 to/from a Decimal type.

libgcc/
2021-02-22  Michael Meissner  <meissner@linux.ibm.com>

	* config/rs6000/_dd_to_kf.c: New file.
	* config/rs6000/_kf_to_dd.c: New file.
	* config/rs6000/_kf_to_sd.c: New file.
	* config/rs6000/_kf_to_td.c: New file.
	* config/rs6000/_sd_to_kf.c: New file.
	* config/rs6000/_sprintfkf.c: New file.
	* config/rs6000/_sprintfkf.h: New file.
	* config/rs6000/_strtokf.h: New file.
	* config/rs6000/_strtokf.c: New file.
	* config/rs6000/_td_to_kf.c: New file.
	* config/rs6000/quad-float128.h: Add new declarations.
	* config/rs6000/t-float128 (fp128_dec_funcs): New macro.
	(fp128_decstr_funcs): New macro.
	(ibm128_dec_funcs): New macro.
	(fp128_ppc_funcs): Add the new conversions.
	(fp128_dec_objs): Force Decimal <-> __float128 conversions to be
	compiled with -mabi=ieeelongdouble.
	(fp128_decstr_objs): Force __float128 <-> string conversions to be
	compiled with -mabi=ibmlongdouble.
	(ibm128_dec_objs): Force Decimal <-> __float128 conversions to be
	compiled with -mabi=ieeelongdouble.
	(FP128_CFLAGS_DECIMAL): New macro.
	(IBM128_CFLAGS_DECIMAL): New macro.
	* dfp-bit.c (DFP_TO_BFP): Add PowerPC _Float128 support.
	(BFP_TO_DFP): Add PowerPC _Float128 support.
	* dfp-bit.h (BFP_KIND): Add new binary floating point kind for
	IEEE 128-bit floating point.
	(DFP_TO_BFP): Add PowerPC _Float128 support.
	(BFP_TO_DFP): Add PowerPC _Float128 support.
	(BFP_SPRINTF): New macro.
2021-02-22 15:33:29 -05:00

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/* Header file for dfp-bit.c.
Copyright (C) 2005-2021 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 _DFPBIT_H
#define _DFPBIT_H
#include <float.h>
#include <fenv.h>
#include <decRound.h>
#include <decExcept.h>
#include "tconfig.h"
#include "coretypes.h"
#include "tm.h"
#include "libgcc_tm.h"
/* We need to know the size of long double that the C library supports.
Don't use LIBGCC2_HAS_XF_MODE or LIBGCC2_HAS_TF_MODE here because
some targets set both of those. */
#ifndef __LIBGCC_XF_MANT_DIG__
#define __LIBGCC_XF_MANT_DIG__ 0
#endif
#define LONG_DOUBLE_HAS_XF_MODE \
(__LDBL_MANT_DIG__ == __LIBGCC_XF_MANT_DIG__)
#ifndef __LIBGCC_TF_MANT_DIG__
#define __LIBGCC_TF_MANT_DIG__ 0
#endif
#define LONG_DOUBLE_HAS_TF_MODE \
(__LDBL_MANT_DIG__ == __LIBGCC_TF_MANT_DIG__)
/* Depending on WIDTH, define a number of macros:
DFP_C_TYPE: type of the arguments to the libgcc functions;
(eg _Decimal32)
IEEE_TYPE: the corresponding (encoded) IEEE754 type;
(eg decimal32)
TO_INTERNAL: the name of the decNumber function to convert an
encoded value into the decNumber internal representation;
TO_ENCODED: the name of the decNumber function to convert an
internally represented decNumber into the encoded
representation.
FROM_STRING: the name of the decNumber function to read an
encoded value from a string.
TO_STRING: the name of the decNumber function to write an
encoded value to a string. */
#if WIDTH == 32
#define DFP_C_TYPE _Decimal32
#define IEEE_TYPE decimal32
#define HOST_TO_IEEE __host_to_ieee_32
#define IEEE_TO_HOST __ieee_to_host_32
#define TO_INTERNAL __decimal32ToNumber
#define TO_ENCODED __decimal32FromNumber
#define FROM_STRING __decimal32FromString
#define TO_STRING __decimal32ToString
#elif WIDTH == 64
#define DFP_C_TYPE _Decimal64
#define IEEE_TYPE decimal64
#define HOST_TO_IEEE __host_to_ieee_64
#define IEEE_TO_HOST __ieee_to_host_64
#define TO_INTERNAL __decimal64ToNumber
#define TO_ENCODED __decimal64FromNumber
#define FROM_STRING __decimal64FromString
#define TO_STRING __decimal64ToString
#elif WIDTH == 128
#define DFP_C_TYPE _Decimal128
#define IEEE_TYPE decimal128
#define HOST_TO_IEEE __host_to_ieee_128
#define IEEE_TO_HOST __ieee_to_host_128
#define TO_INTERNAL __decimal128ToNumber
#define TO_ENCODED __decimal128FromNumber
#define FROM_STRING __decimal128FromString
#define TO_STRING __decimal128ToString
#else
#error invalid decimal float word width
#endif
/* We define __DEC_EVAL_METHOD__ to 2, saying that we evaluate all
operations and constants to the range and precision of the _Decimal128
type. Make it so. */
#if WIDTH == 32
#define CONTEXT_INIT DEC_INIT_DECIMAL32
#elif WIDTH == 64
#define CONTEXT_INIT DEC_INIT_DECIMAL64
#elif WIDTH == 128
#define CONTEXT_INIT DEC_INIT_DECIMAL128
#endif
#ifndef DFP_INIT_ROUNDMODE
#define DFP_INIT_ROUNDMODE(A) A = DEC_ROUND_HALF_EVEN
#endif
#ifdef DFP_EXCEPTIONS_ENABLED
/* Return IEEE exception flags based on decNumber status flags. */
#define DFP_IEEE_FLAGS(DEC_FLAGS) __extension__ \
({int _fe_flags = 0; \
if ((dec_flags & DEC_IEEE_854_Division_by_zero) != 0) \
_fe_flags |= FE_DIVBYZERO; \
if ((dec_flags & DEC_IEEE_854_Inexact) != 0) \
_fe_flags |= FE_INEXACT; \
if ((dec_flags & DEC_IEEE_854_Invalid_operation) != 0) \
_fe_flags |= FE_INVALID; \
if ((dec_flags & DEC_IEEE_854_Overflow) != 0) \
_fe_flags |= FE_OVERFLOW; \
if ((dec_flags & DEC_IEEE_854_Underflow) != 0) \
_fe_flags |= FE_UNDERFLOW; \
_fe_flags; })
#else
#define DFP_EXCEPTIONS_ENABLED 0
#define DFP_IEEE_FLAGS(A) 0
#define DFP_HANDLE_EXCEPTIONS(A) do {} while (0)
#endif
/* Conversions between different decimal float types use WIDTH_TO to
determine additional macros to define. */
#if defined (L_dd_to_sd) || defined (L_td_to_sd)
#define WIDTH_TO 32
#elif defined (L_sd_to_dd) || defined (L_td_to_dd)
#define WIDTH_TO 64
#elif defined (L_sd_to_td) || defined (L_dd_to_td)
#define WIDTH_TO 128
#endif
/* If WIDTH_TO is defined, define additional macros:
DFP_C_TYPE_TO: type of the result of dfp to dfp conversion.
IEEE_TYPE_TO: the corresponding (encoded) IEEE754 type.
TO_ENCODED_TO: the name of the decNumber function to convert an
internally represented decNumber into the encoded representation
for the destination. */
#if WIDTH_TO == 32
#define DFP_C_TYPE_TO _Decimal32
#define IEEE_TYPE_TO decimal32
#define TO_ENCODED_TO __decimal32FromNumber
#define IEEE_TO_HOST_TO __ieee_to_host_32
#elif WIDTH_TO == 64
#define DFP_C_TYPE_TO _Decimal64
#define IEEE_TYPE_TO decimal64
#define TO_ENCODED_TO __decimal64FromNumber
#define IEEE_TO_HOST_TO __ieee_to_host_64
#elif WIDTH_TO == 128
#define DFP_C_TYPE_TO _Decimal128
#define IEEE_TYPE_TO decimal128
#define TO_ENCODED_TO __decimal128FromNumber
#define IEEE_TO_HOST_TO __ieee_to_host_128
#endif
/* Conversions between decimal float types and integral types use INT_KIND
to determine the data type and C functions to use. */
#if defined (L_sd_to_si) || defined (L_dd_to_si) || defined (L_td_to_si) \
|| defined (L_si_to_sd) || defined (L_si_to_dd) || defined (L_si_to_td)
#define INT_KIND 1
#elif defined (L_sd_to_di) || defined (L_dd_to_di) || defined (L_td_to_di) \
|| defined (L_di_to_sd) || defined (L_di_to_dd) || defined (L_di_to_td)
#define INT_KIND 2
#elif defined (L_sd_to_usi) || defined (L_dd_to_usi) || defined (L_td_to_usi) \
|| defined (L_usi_to_sd) || defined (L_usi_to_dd) || defined (L_usi_to_td)
#define INT_KIND 3
#elif defined (L_sd_to_udi) || defined (L_dd_to_udi) || defined (L_td_to_udi) \
|| defined (L_udi_to_sd) || defined (L_udi_to_dd) || defined (L_udi_to_td)
#define INT_KIND 4
#endif
/* If INT_KIND is defined, define additional macros:
INT_TYPE: The integer data type.
INT_FMT: The format string for writing the integer to a string.
CAST_FOR_FMT: Cast variable of INT_KIND to C type for sprintf.
This works for ILP32 and LP64, won't for other type size systems.
STR_TO_INT: The function to read the integer from a string. */
#if INT_KIND == 1
#define INT_TYPE SItype
#define INT_FMT "%d"
#define CAST_FOR_FMT(A) (int)A
#define STR_TO_INT strtol
#elif INT_KIND == 2
#define INT_TYPE DItype
#define INT_FMT "%lld"
#define CAST_FOR_FMT(A) (long long)A
#define STR_TO_INT strtoll
#elif INT_KIND == 3
#define INT_TYPE USItype
#define INT_FMT "%u"
#define CAST_FOR_FMT(A) (unsigned int)A
#define STR_TO_INT strtoul
#elif INT_KIND == 4
#define INT_TYPE UDItype
#define INT_FMT "%llu"
#define CAST_FOR_FMT(A) (unsigned long long)A
#define STR_TO_INT strtoull
#endif
/* Conversions between decimal float types and binary float types use
BFP_KIND to determine the data type and C functions to use. */
#if defined (L_sd_to_sf) || defined (L_dd_to_sf) || defined (L_td_to_sf) \
|| defined (L_sf_to_sd) || defined (L_sf_to_dd) || defined (L_sf_to_td)
#define BFP_KIND 1
#elif defined (L_sd_to_df) || defined (L_dd_to_df ) || defined (L_td_to_df) \
|| defined (L_df_to_sd) || defined (L_df_to_dd) || defined (L_df_to_td)
#define BFP_KIND 2
#elif defined (L_sd_to_xf) || defined (L_dd_to_xf ) || defined (L_td_to_xf) \
|| defined (L_xf_to_sd) || defined (L_xf_to_dd) || defined (L_xf_to_td)
#define BFP_KIND 3
#elif defined (L_sd_to_tf) || defined (L_dd_to_tf) || defined (L_td_to_tf) \
|| defined (L_tf_to_sd) || defined (L_tf_to_dd) || defined (L_tf_to_td)
#define BFP_KIND 4
#elif defined (L_sd_to_kf) || defined (L_dd_to_kf) || defined (L_td_to_kf) \
|| defined (L_kf_to_sd) || defined (L_kf_to_dd) || defined (L_kf_to_td)
#define BFP_KIND 5
#endif
/* If BFP_KIND is defined, define additional macros:
BFP_TYPE: The binary floating point data type.
BFP_FMT: The format string for writing the value to a string.
The number of decimal digits printed is
ceil (nbits / log2 (10.) + 1)
as described in David Matula's CACM 19(3) 716-723 June 1968 paper.
BFP_VIA_TYPE: Type to which to cast a variable of BPF_TYPE for a
call to sprintf.
STR_TO_BFP: The function to read the value from a string. */
#if BFP_KIND == 1
#define BFP_TYPE SFtype
#define BFP_FMT "%.9e"
#define BFP_VIA_TYPE double
#define STR_TO_BFP strtof
#elif BFP_KIND == 2
#define BFP_TYPE DFtype
#define BFP_FMT "%.17e"
#define BFP_VIA_TYPE double
#define STR_TO_BFP strtod
#elif BFP_KIND == 3
#if LONG_DOUBLE_HAS_XF_MODE
#define BFP_TYPE XFtype
#define BFP_FMT "%.21Le"
#define BFP_VIA_TYPE long double
#define STR_TO_BFP strtold
#endif /* LONG_DOUBLE_HAS_XF_MODE */
#elif BFP_KIND == 4
#if LONG_DOUBLE_HAS_TF_MODE
#define BFP_TYPE TFtype
#if LDBL_MANT_DIG == 106
#define BFP_FMT "%.33Le"
#elif LDBL_MANT_DIG == 113
#define BFP_FMT "%.36Le"
#else
#error "unknown long double size, cannot define BFP_FMT"
#endif /* LDBL_MANT_DIG */
#define STR_TO_BFP strtold
#define BFP_VIA_TYPE long double
#endif /* LONG_DOUBLE_HAS_TF_MODE */
#elif BFP_KIND == 5
#define BFP_TYPE _Float128
#define BFP_FMT "%.36Le"
#define BFP_VIA_TYPE _Float128
#define STR_TO_BFP __strtokf
#include <_strtokf.h>
#endif /* BFP_KIND */
#if WIDTH == 128 || WIDTH_TO == 128
#include "decimal128.h"
#include "decQuad.h"
#endif
#if WIDTH == 64 || WIDTH_TO == 64
#include "decimal64.h"
#include "decDouble.h"
#endif
#if WIDTH == 32 || WIDTH_TO == 32
#include "decimal32.h"
#include "decSingle.h"
#endif
#include "decNumber.h"
/* Names of arithmetic functions. */
#if ENABLE_DECIMAL_BID_FORMAT
#define DPD_BID_NAME(DPD,BID) BID
#else
#define DPD_BID_NAME(DPD,BID) DPD
#endif
#if WIDTH == 32
#define DFP_ADD DPD_BID_NAME(__dpd_addsd3,__bid_addsd3)
#define DFP_SUB DPD_BID_NAME(__dpd_subsd3,__bid_subsd3)
#define DFP_MULTIPLY DPD_BID_NAME(__dpd_mulsd3,__bid_mulsd3)
#define DFP_DIVIDE DPD_BID_NAME(__dpd_divsd3,__bid_divsd3)
#define DFP_EQ DPD_BID_NAME(__dpd_eqsd2,__bid_eqsd2)
#define DFP_NE DPD_BID_NAME(__dpd_nesd2,__bid_nesd2)
#define DFP_LT DPD_BID_NAME(__dpd_ltsd2,__bid_ltsd2)
#define DFP_GT DPD_BID_NAME(__dpd_gtsd2,__bid_gtsd2)
#define DFP_LE DPD_BID_NAME(__dpd_lesd2,__bid_lesd2)
#define DFP_GE DPD_BID_NAME(__dpd_gesd2,__bid_gesd2)
#define DFP_UNORD DPD_BID_NAME(__dpd_unordsd2,__bid_unordsd2)
#elif WIDTH == 64
#define DFP_ADD DPD_BID_NAME(__dpd_adddd3,__bid_adddd3)
#define DFP_SUB DPD_BID_NAME(__dpd_subdd3,__bid_subdd3)
#define DFP_MULTIPLY DPD_BID_NAME(__dpd_muldd3,__bid_muldd3)
#define DFP_DIVIDE DPD_BID_NAME(__dpd_divdd3,__bid_divdd3)
#define DFP_EQ DPD_BID_NAME(__dpd_eqdd2,__bid_eqdd2)
#define DFP_NE DPD_BID_NAME(__dpd_nedd2,__bid_nedd2)
#define DFP_LT DPD_BID_NAME(__dpd_ltdd2,__bid_ltdd2)
#define DFP_GT DPD_BID_NAME(__dpd_gtdd2,__bid_gtdd2)
#define DFP_LE DPD_BID_NAME(__dpd_ledd2,__bid_ledd2)
#define DFP_GE DPD_BID_NAME(__dpd_gedd2,__bid_gedd2)
#define DFP_UNORD DPD_BID_NAME(__dpd_unorddd2,__bid_unorddd2)
#elif WIDTH == 128
#define DFP_ADD DPD_BID_NAME(__dpd_addtd3,__bid_addtd3)
#define DFP_SUB DPD_BID_NAME(__dpd_subtd3,__bid_subtd3)
#define DFP_MULTIPLY DPD_BID_NAME(__dpd_multd3,__bid_multd3)
#define DFP_DIVIDE DPD_BID_NAME(__dpd_divtd3,__bid_divtd3)
#define DFP_EQ DPD_BID_NAME(__dpd_eqtd2,__bid_eqtd2)
#define DFP_NE DPD_BID_NAME(__dpd_netd2,__bid_netd2)
#define DFP_LT DPD_BID_NAME(__dpd_lttd2,__bid_lttd2)
#define DFP_GT DPD_BID_NAME(__dpd_gttd2,__bid_gttd2)
#define DFP_LE DPD_BID_NAME(__dpd_letd2,__bid_letd2)
#define DFP_GE DPD_BID_NAME(__dpd_getd2,__bid_getd2)
#define DFP_UNORD DPD_BID_NAME(__dpd_unordtd2,__bid_unordtd2)
#endif
/* Names of decNumber functions for DPD arithmetic. */
#if WIDTH == 32
#define decFloat decDouble
#define DFP_BINARY_OP d32_binary_op
#define DFP_COMPARE_OP d32_compare_op
#define DEC_FLOAT_ADD decDoubleAdd
#define DEC_FLOAT_SUBTRACT decDoubleSubtract
#define DEC_FLOAT_MULTIPLY decDoubleMultiply
#define DEC_FLOAT_DIVIDE decDoubleDivide
#define DEC_FLOAT_COMPARE decDoubleCompare
#define DEC_FLOAT_IS_ZERO decDoubleIsZero
#define DEC_FLOAT_IS_NAN decDoubleIsNaN
#define DEC_FLOAT_IS_SIGNED decDoubleIsSigned
#elif WIDTH == 64
#define DFP_BINARY_OP dnn_binary_op
#define DFP_COMPARE_OP dnn_compare_op
#define decFloat decDouble
#define DEC_FLOAT_ADD decDoubleAdd
#define DEC_FLOAT_SUBTRACT decDoubleSubtract
#define DEC_FLOAT_MULTIPLY decDoubleMultiply
#define DEC_FLOAT_DIVIDE decDoubleDivide
#define DEC_FLOAT_COMPARE decDoubleCompare
#define DEC_FLOAT_IS_ZERO decDoubleIsZero
#define DEC_FLOAT_IS_NAN decDoubleIsNaN
#define DEC_FLOAT_IS_SIGNED decDoubleIsSigned
#elif WIDTH == 128
#define DFP_BINARY_OP dnn_binary_op
#define DFP_COMPARE_OP dnn_compare_op
#define decFloat decQuad
#define DEC_FLOAT_ADD decQuadAdd
#define DEC_FLOAT_SUBTRACT decQuadSubtract
#define DEC_FLOAT_MULTIPLY decQuadMultiply
#define DEC_FLOAT_DIVIDE decQuadDivide
#define DEC_FLOAT_COMPARE decQuadCompare
#define DEC_FLOAT_IS_ZERO decQuadIsZero
#define DEC_FLOAT_IS_NAN decQuadIsNaN
#define DEC_FLOAT_IS_SIGNED decQuadIsSigned
#endif
/* Names of functions to convert between different decimal float types. */
#if WIDTH == 32
#if WIDTH_TO == 64
#define DFP_TO_DFP DPD_BID_NAME(__dpd_extendsddd2,__bid_extendsddd2)
#elif WIDTH_TO == 128
#define DFP_TO_DFP DPD_BID_NAME(__dpd_extendsdtd2,__bid_extendsdtd2)
#endif
#elif WIDTH == 64
#if WIDTH_TO == 32
#define DFP_TO_DFP DPD_BID_NAME(__dpd_truncddsd2,__bid_truncddsd2)
#elif WIDTH_TO == 128
#define DFP_TO_DFP DPD_BID_NAME(__dpd_extendddtd2,__bid_extendddtd2)
#endif
#elif WIDTH == 128
#if WIDTH_TO == 32
#define DFP_TO_DFP DPD_BID_NAME(__dpd_trunctdsd2,__bid_trunctdsd2)
#elif WIDTH_TO == 64
#define DFP_TO_DFP DPD_BID_NAME(__dpd_trunctddd2,__bid_trunctddd2)
#endif
#endif
/* Names of functions to convert between decimal float and integers. */
#if WIDTH == 32
#if INT_KIND == 1
#define INT_TO_DFP DPD_BID_NAME(__dpd_floatsisd,__bid_floatsisd)
#define DFP_TO_INT DPD_BID_NAME(__dpd_fixsdsi,__bid_fixsdsi)
#define DEC_FLOAT_FROM_INT decDoubleFromInt32
#define DEC_FLOAT_TO_INT decDoubleToInt32
#elif INT_KIND == 2
#define INT_TO_DFP DPD_BID_NAME(__dpd_floatdisd,__bid_floatdisd)
#define DFP_TO_INT DPD_BID_NAME(__dpd_fixsddi,__bid_fixsddi)
#elif INT_KIND == 3
#define INT_TO_DFP DPD_BID_NAME(__dpd_floatunssisd,__bid_floatunssisd)
#define DFP_TO_INT DPD_BID_NAME(__dpd_fixunssdsi,__bid_fixunssdsi)
#define DEC_FLOAT_FROM_INT decDoubleFromUInt32
#define DEC_FLOAT_TO_INT decDoubleToUInt32
#elif INT_KIND == 4
#define INT_TO_DFP DPD_BID_NAME(__dpd_floatunsdisd,__bid_floatunsdisd)
#define DFP_TO_INT DPD_BID_NAME(__dpd_fixunssddi,__bid_fixunssddi)
#endif
#elif WIDTH == 64
#define decFloat decDouble
#if INT_KIND == 1
#define INT_TO_DFP DPD_BID_NAME(__dpd_floatsidd,__bid_floatsidd)
#define DFP_TO_INT DPD_BID_NAME(__dpd_fixddsi,__bid_fixddsi)
#define DEC_FLOAT_FROM_INT decDoubleFromInt32
#define DEC_FLOAT_TO_INT decDoubleToInt32
#elif INT_KIND == 2
#define INT_TO_DFP DPD_BID_NAME(__dpd_floatdidd,__bid_floatdidd)
#define DFP_TO_INT DPD_BID_NAME(__dpd_fixdddi,__bid_fixdddi)
#elif INT_KIND == 3
#define INT_TO_DFP DPD_BID_NAME(__dpd_floatunssidd,__bid_floatunssidd)
#define DFP_TO_INT DPD_BID_NAME(__dpd_fixunsddsi,__bid_fixunsddsi)
#define DEC_FLOAT_FROM_INT decDoubleFromUInt32
#define DEC_FLOAT_TO_INT decDoubleToUInt32
#elif INT_KIND == 4
#define INT_TO_DFP DPD_BID_NAME(__dpd_floatunsdidd,__bid_floatunsdidd)
#define DFP_TO_INT DPD_BID_NAME(__dpd_fixunsdddi,__bid_fixunsdddi)
#endif
#elif WIDTH == 128
#define decFloat decQuad
#if INT_KIND == 1
#define INT_TO_DFP DPD_BID_NAME(__dpd_floatsitd,__bid_floatsitd)
#define DFP_TO_INT DPD_BID_NAME(__dpd_fixtdsi,__bid_fixtdsi)
#define DEC_FLOAT_FROM_INT decQuadFromInt32
#define DEC_FLOAT_TO_INT decQuadToInt32
#elif INT_KIND == 2
#define INT_TO_DFP DPD_BID_NAME(__dpd_floatditd,__bid_floatditd)
#define DFP_TO_INT DPD_BID_NAME(__dpd_fixtddi,__bid_fixtddi)
#elif INT_KIND == 3
#define INT_TO_DFP DPD_BID_NAME(__dpd_floatunssitd,__bid_floatunssitd)
#define DFP_TO_INT DPD_BID_NAME(__dpd_fixunstdsi,__bid_fixunstdsi)
#define DEC_FLOAT_FROM_INT decQuadFromUInt32
#define DEC_FLOAT_TO_INT decQuadToUInt32
#elif INT_KIND == 4
#define INT_TO_DFP DPD_BID_NAME(__dpd_floatunsditd,__bid_floatunsditd)
#define DFP_TO_INT DPD_BID_NAME(__dpd_fixunstddi,__bid_fixunstddi)
#endif
#endif
/* Names of functions to convert between decimal float and binary float. */
#if WIDTH == 32
#if BFP_KIND == 1
#define BFP_TO_DFP DPD_BID_NAME(__dpd_extendsfsd,__bid_extendsfsd)
#define DFP_TO_BFP DPD_BID_NAME(__dpd_truncsdsf,__bid_truncsdsf)
#elif BFP_KIND == 2
#define BFP_TO_DFP DPD_BID_NAME(__dpd_truncdfsd,__bid_truncdfsd)
#define DFP_TO_BFP DPD_BID_NAME(__dpd_extendsddf,__bid_extendsddf)
#elif BFP_KIND == 3
#define BFP_TO_DFP DPD_BID_NAME(__dpd_truncxfsd,__bid_truncxfsd)
#define DFP_TO_BFP DPD_BID_NAME(__dpd_extendsdxf,__bid_extendsdxf)
#elif BFP_KIND == 4
#define BFP_TO_DFP DPD_BID_NAME(__dpd_trunctfsd,__bid_trunctfsd)
#define DFP_TO_BFP DPD_BID_NAME(__dpd_extendsdtf,__bid_extendsdtf)
#elif BFP_KIND == 5
#define BFP_TO_DFP DPD_BID_NAME(__dpd_trunckfsd,__bid_trunckfsd)
#define DFP_TO_BFP DPD_BID_NAME(__dpd_extendsdkf,__bid_extendsdkf)
#endif /* BFP_KIND */
#elif WIDTH == 64
#if BFP_KIND == 1
#define BFP_TO_DFP DPD_BID_NAME(__dpd_extendsfdd,__bid_extendsfdd)
#define DFP_TO_BFP DPD_BID_NAME(__dpd_truncddsf,__bid_truncddsf)
#elif BFP_KIND == 2
#define BFP_TO_DFP DPD_BID_NAME(__dpd_extenddfdd,__bid_extenddfdd)
#define DFP_TO_BFP DPD_BID_NAME(__dpd_truncdddf,__bid_truncdddf)
#elif BFP_KIND == 3
#define BFP_TO_DFP DPD_BID_NAME(__dpd_truncxfdd,__bid_truncxfdd)
#define DFP_TO_BFP DPD_BID_NAME(__dpd_extendddxf,__bid_extendddxf)
#elif BFP_KIND == 4
#define BFP_TO_DFP DPD_BID_NAME(__dpd_trunctfdd,__bid_trunctfdd)
#define DFP_TO_BFP DPD_BID_NAME(__dpd_extendddtf,__bid_extendddtf)
#elif BFP_KIND == 5
#define BFP_TO_DFP DPD_BID_NAME(__dpd_trunckfdd,__bid_trunckfdd)
#define DFP_TO_BFP DPD_BID_NAME(__dpd_extendddkf,__bid_extendddkf)
#endif /* BFP_KIND */
#elif WIDTH == 128
#if BFP_KIND == 1
#define BFP_TO_DFP DPD_BID_NAME(__dpd_extendsftd,__bid_extendsftd)
#define DFP_TO_BFP DPD_BID_NAME(__dpd_trunctdsf,__bid_trunctdsf)
#elif BFP_KIND == 2
#define BFP_TO_DFP DPD_BID_NAME(__dpd_extenddftd,__bid_extenddftd)
#define DFP_TO_BFP DPD_BID_NAME(__dpd_trunctddf,__bid_trunctddf)
#elif BFP_KIND == 3
#define BFP_TO_DFP DPD_BID_NAME(__dpd_extendxftd,__bid_extendxftd)
#define DFP_TO_BFP DPD_BID_NAME(__dpd_trunctdxf,__bid_trunctdxf)
#elif BFP_KIND == 4
#define BFP_TO_DFP DPD_BID_NAME(__dpd_extendtftd,__bid_extendtftd)
#define DFP_TO_BFP DPD_BID_NAME(__dpd_trunctdtf,__bid_trunctdtf)
#elif BFP_KIND == 5
#define BFP_TO_DFP DPD_BID_NAME(__dpd_extendkftd,__bid_extendkftd)
#define DFP_TO_BFP DPD_BID_NAME(__dpd_trunctdkf,__bid_trunctdkf)
#endif /* BFP_KIND */
#endif /* WIDTH */
/* Some handy typedefs. */
typedef float SFtype __attribute__ ((mode (SF)));
typedef float DFtype __attribute__ ((mode (DF)));
#if LONG_DOUBLE_HAS_XF_MODE
typedef float XFtype __attribute__ ((mode (XF)));
#endif /* LONG_DOUBLE_HAS_XF_MODE */
#if LONG_DOUBLE_HAS_TF_MODE
typedef float TFtype __attribute__ ((mode (TF)));
#endif /* LONG_DOUBLE_HAS_TF_MODE */
typedef int SItype __attribute__ ((mode (SI)));
typedef int DItype __attribute__ ((mode (DI)));
typedef unsigned int USItype __attribute__ ((mode (SI)));
typedef unsigned int UDItype __attribute__ ((mode (DI)));
/* The type of the result of a decimal float comparison. This must
match `__libgcc_cmp_return__' in GCC for the target. */
typedef int CMPtype __attribute__ ((mode (__libgcc_cmp_return__)));
/* Prototypes. */
#if defined (L_mul_sd) || defined (L_mul_dd) || defined (L_mul_td)
extern DFP_C_TYPE DFP_MULTIPLY (DFP_C_TYPE, DFP_C_TYPE);
#endif
#if defined (L_div_sd) || defined (L_div_dd) || defined (L_div_td)
extern DFP_C_TYPE DFP_DIVIDE (DFP_C_TYPE, DFP_C_TYPE);
#endif
#if defined (L_addsub_sd) || defined (L_addsub_dd) || defined (L_addsub_td)
extern DFP_C_TYPE DFP_ADD (DFP_C_TYPE, DFP_C_TYPE);
extern DFP_C_TYPE DFP_SUB (DFP_C_TYPE, DFP_C_TYPE);
#endif
#if defined (L_eq_sd) || defined (L_eq_dd) || defined (L_eq_td)
extern CMPtype DFP_EQ (DFP_C_TYPE, DFP_C_TYPE);
#endif
#if defined (L_ne_sd) || defined (L_ne_dd) || defined (L_ne_td)
extern CMPtype DFP_NE (DFP_C_TYPE, DFP_C_TYPE);
#endif
#if defined (L_lt_sd) || defined (L_lt_dd) || defined (L_lt_td)
extern CMPtype DFP_LT (DFP_C_TYPE, DFP_C_TYPE);
#endif
#if defined (L_gt_sd) || defined (L_gt_dd) || defined (L_gt_td)
extern CMPtype DFP_GT (DFP_C_TYPE, DFP_C_TYPE);
#endif
#if defined (L_le_sd) || defined (L_le_dd) || defined (L_le_td)
extern CMPtype DFP_LE (DFP_C_TYPE, DFP_C_TYPE);
#endif
#if defined (L_ge_sd) || defined (L_ge_dd) || defined (L_ge_td)
extern CMPtype DFP_GE (DFP_C_TYPE, DFP_C_TYPE);
#endif
#if defined (L_unord_sd) || defined (L_unord_dd) || defined (L_unord_td)
extern CMPtype DFP_UNORD (DFP_C_TYPE, DFP_C_TYPE);
#endif
#if defined (L_sd_to_dd) || defined (L_sd_to_td) || defined (L_dd_to_sd) \
|| defined (L_dd_to_td) || defined (L_td_to_sd) || defined (L_td_to_dd)
extern DFP_C_TYPE_TO DFP_TO_DFP (DFP_C_TYPE);
#endif
#if defined (L_sd_to_si) || defined (L_dd_to_si) || defined (L_td_to_si) \
|| defined (L_sd_to_di) || defined (L_dd_to_di) || defined (L_td_to_di) \
|| defined (L_sd_to_usi) || defined (L_dd_to_usi) || defined (L_td_to_usi) \
|| defined (L_sd_to_udi) || defined (L_dd_to_udi) || defined (L_td_to_udi)
extern INT_TYPE DFP_TO_INT (DFP_C_TYPE);
#endif
#if defined (L_si_to_sd) || defined (L_si_to_dd) || defined (L_si_to_td) \
|| defined (L_di_to_sd) || defined (L_di_to_dd) || defined (L_di_to_td) \
|| defined (L_usi_to_sd) || defined (L_usi_to_dd) || defined (L_usi_to_td) \
|| defined (L_udi_to_sd) || defined (L_udi_to_dd) || defined (L_udi_to_td)
extern DFP_C_TYPE INT_TO_DFP (INT_TYPE);
#endif
#if defined (L_sd_to_sf) || defined (L_dd_to_sf) || defined (L_td_to_sf) \
|| defined (L_sd_to_df) || defined (L_dd_to_df) || defined (L_td_to_df) \
|| defined (L_sd_to_kf) || defined (L_dd_to_kf) || defined (L_td_to_kf) \
|| ((defined (L_sd_to_xf) || defined (L_dd_to_xf) || defined (L_td_to_xf)) \
&& LONG_DOUBLE_HAS_XF_MODE) \
|| ((defined (L_sd_to_tf) || defined (L_dd_to_tf) || defined (L_td_to_tf)) \
&& LONG_DOUBLE_HAS_TF_MODE)
extern BFP_TYPE DFP_TO_BFP (DFP_C_TYPE);
#endif
#if defined (L_sf_to_sd) || defined (L_sf_to_dd) || defined (L_sf_to_td) \
|| defined (L_df_to_sd) || defined (L_df_to_dd) || defined (L_df_to_td) \
|| ((defined (L_xf_to_sd) || defined (L_xf_to_dd) || defined (L_xf_to_td)) \
&& LONG_DOUBLE_HAS_XF_MODE) \
|| ((defined (L_tf_to_sd) || defined (L_tf_to_dd) || defined (L_tf_to_td)) \
&& LONG_DOUBLE_HAS_TF_MODE)
extern DFP_C_TYPE BFP_TO_DFP (BFP_TYPE);
#define BFP_SPRINTF sprintf
#elif defined (L_kf_to_sd) || defined (L_kf_to_dd) || defined (L_kf_to_td)
extern DFP_C_TYPE BFP_TO_DFP (BFP_TYPE);
#include <_sprintfkf.h>
#define BFP_SPRINTF __sprintfkf
#endif
#endif /* _DFPBIT_H */
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