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SH: Use softfp for sh-elf

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libgcc/ChangeLog:

	PR target/29845
	* config.host (sh-*-elf*): Replace fdpbit with softfp.
	* config/sh/sfp-machine.h: New file.

Signed-off-by: Sébastien Michelland <sebastien.michelland@lcis.grenoble-inp.fr>
This commit is contained in:
Sébastien Michelland 2024-10-10 09:24:39 +09:00 • committed by Oleg Endo
parent e9a213810a
commit e95512e2d5
2 changed files with 84 additions and 1 deletions
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2
libgcc/config.host
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@ -1414,7 +1414,7 @@ s390x-ibm-tpf*)
md_unwind_header=s390/tpf-unwind.h
;;
sh-*-elf* | sh[12346l]*-*-elf*)
tmake_file="$tmake_file sh/t-sh t-crtstuff-pic t-fdpbit"
tmake_file="$tmake_file sh/t-sh t-crtstuff-pic t-softfp-sfdf t-softfp"
extra_parts="$extra_parts crt1.o crti.o crtn.o crtbeginS.o crtendS.o \
libic_invalidate_array_4-100.a \
libic_invalidate_array_4-200.a \

83
libgcc/config/sh/sfp-machine.h Normal file
View file

@ -0,0 +1,83 @@
/* Software floating-point machine description for SuperH.
Copyright (C) 2024 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/>. */
#define _FP_W_TYPE_SIZE 32
#define _FP_W_TYPE unsigned long
#define _FP_WS_TYPE signed long
#define _FP_I_TYPE long
#define _FP_MUL_MEAT_S(R,X,Y) \
_FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
#define _FP_MUL_MEAT_D(R,X,Y) \
_FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
#define _FP_MUL_MEAT_Q(R,X,Y) \
_FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_udiv_norm(S,R,X,Y)
#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y)
#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y)
#define _FP_NANFRAC_B _FP_QNANBIT_B
#define _FP_NANFRAC_H _FP_QNANBIT_H
#define _FP_NANFRAC_S _FP_QNANBIT_S
#define _FP_NANFRAC_D _FP_QNANBIT_D, 0
#define _FP_NANFRAC_Q _FP_QNANBIT_Q, 0, 0, 0
/* The type of the result of a floating point comparison. This must
match __libgcc_cmp_return__ in GCC for the target. */
typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__)));
#define CMPtype __gcc_CMPtype
#define _FP_NANSIGN_B 0
#define _FP_NANSIGN_H 0
#define _FP_NANSIGN_S 0
#define _FP_NANSIGN_D 0
#define _FP_NANSIGN_Q 0
#define _FP_KEEPNANFRACP 0
#define _FP_QNANNEGATEDP 0
#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \
do { \
R##_s = _FP_NANSIGN_##fs; \
_FP_FRAC_SET_##wc(R,_FP_NANFRAC_##fs); \
R##_c = FP_CLS_NAN; \
} while (0)
#define _FP_TININESS_AFTER_ROUNDING 1
#define __LITTLE_ENDIAN 1234
#define __BIG_ENDIAN 4321
#if defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
#define __BYTE_ORDER __BIG_ENDIAN
#else
#define __BYTE_ORDER __LITTLE_ENDIAN
#endif
/* Define ALIASNAME as a strong alias for NAME. */
# define strong_alias(name, aliasname) _strong_alias(name, aliasname)
# define _strong_alias(name, aliasname) \
extern __typeof (name) aliasname __attribute__ ((alias (#name)));