mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-04 02:40:06 +00:00
69da3c9e87
quad.h have
#if _FP_W_TYPE_SIZE < 64
union _FP_UNION_Q
{
Use 4 _FP_W_TYPEs
}
#else
union _FP_UNION_Q
{
Use 2 _FP_W_TYPEs
}
#endif
Replace
#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q
with
#if _FP_W_TYPE_SIZE < 64
to check whether 4 or 2 _FP_W_TYPEs are used for IEEE quad precision.
Tested with build-many-glibcs.py.
[BZ #24066]
* soft-fp/extenddftf2.c: Use "_FP_W_TYPE_SIZE < 64" to check if
4_FP_W_TYPEs are used for IEEE quad precision.
* soft-fp/extendhftf2.c: Likewise.
* soft-fp/extendsftf2.c: Likewise.
* soft-fp/extendxftf2.c: Likewise.
* soft-fp/trunctfdf2.c: Likewise.
* soft-fp/trunctfhf2.c: Likewise.
* soft-fp/trunctfsf2.c: Likewise.
* soft-fp/trunctfxf2.c: Likewise.
* sysdeps/alpha/ots_cvttx.c: Likewise.
* sysdeps/alpha/ots_cvtxt.c: Likewise.
* sysdeps/ieee754/soft-fp/s_daddl.c: Likewise.
* sysdeps/ieee754/soft-fp/s_ddivl.c: Likewise.
* sysdeps/ieee754/soft-fp/s_dmull.c: Likewise.
* sysdeps/ieee754/soft-fp/s_dsubl.c: Likewise.
* sysdeps/ieee754/soft-fp/s_faddl.c: Likewise.
* sysdeps/ieee754/soft-fp/s_fdivl.c: Likewise.
* sysdeps/ieee754/soft-fp/s_fmull.c: Likewise.
* sysdeps/ieee754/soft-fp/s_fsubl.c: Likewise.
* sysdeps/sparc/sparc32/q_dtoq.c: Likewise.
* sysdeps/sparc/sparc32/q_qtod.c: Likewise.
* sysdeps/sparc/sparc32/q_qtos.c: Likewise.
* sysdeps/sparc/sparc32/q_stoq.c: Likewise.
* sysdeps/sparc/sparc64/qp_dtoq.c: Likewise.
* sysdeps/sparc/sparc64/qp_qtod.c: Likewise.
* sysdeps/sparc/sparc64/qp_qtos.c: Likewise.
* sysdeps/sparc/sparc64/qp_stoq.c: Likewise.
45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/* Software floating-point emulation.
|
|
Return (float)a
|
|
Copyright (C) 1997-2019 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Richard Henderson (rth@cygnus.com) and
|
|
Jakub Jelinek (jj@ultra.linux.cz).
|
|
|
|
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.
|
|
|
|
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, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include "soft-fp.h"
|
|
#include "single.h"
|
|
#include "quad.h"
|
|
|
|
float _Q_qtos(const long double a)
|
|
{
|
|
FP_DECL_EX;
|
|
FP_DECL_Q(A);
|
|
FP_DECL_S(R);
|
|
float r;
|
|
|
|
FP_INIT_ROUNDMODE;
|
|
FP_UNPACK_SEMIRAW_Q(A, a);
|
|
#if _FP_W_TYPE_SIZE < 64
|
|
FP_TRUNC(S,Q,1,4,R,A);
|
|
#else
|
|
FP_TRUNC(S,Q,1,2,R,A);
|
|
#endif
|
|
FP_PACK_SEMIRAW_S(r, R);
|
|
FP_HANDLE_EXCEPTIONS;
|
|
|
|
return r;
|
|
}
|