cb8bcafa71
existing functions with the exception they use the condition flags to store the result. Differential Revision: https://reviews.freebsd.org/D872 Silence from: current@ and numerics@ MFC after: 1 week
102 lines
3.3 KiB
C
102 lines
3.3 KiB
C
/*
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* Copyright (C) 2012 Andrew Turner
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "softfloat-for-gcc.h"
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#include "milieu.h"
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#include "softfloat.h"
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#include "aeabi_vfp.h"
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extern int _libc_arm_fpu_present;
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flag __unordsf2(float32, float32);
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/* These are written in asm and are only called from this file */
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int __aeabi_fcmpeq_vfp(float32, float32);
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int __aeabi_fcmplt_vfp(float32, float32);
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int __aeabi_fcmple_vfp(float32, float32);
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int __aeabi_fcmpgt_vfp(float32, float32);
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int __aeabi_fcmpge_vfp(float32, float32);
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int __aeabi_fcmpun_vfp(float32, float32);
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int __aeabi_f2iz_vfp(float32);
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float64 __aeabi_f2d_vfp(float32);
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float32 __aeabi_i2f_vfp(int);
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float32 __aeabi_fadd_vfp(float32, float32);
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float32 __aeabi_fdiv_vfp(float32, float32);
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float32 __aeabi_fmul_vfp(float32, float32);
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float32 __aeabi_fsub_vfp(float32, float32);
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/*
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* Depending on the target these will:
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* On armv6 with a vfp call the above function, or
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* Call the softfloat function in the 3rd argument.
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*/
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int AEABI_FUNC2(fcmpeq, float32, float32_eq)
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int AEABI_FUNC2(fcmplt, float32, float32_lt)
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int AEABI_FUNC2(fcmple, float32, float32_le)
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int AEABI_FUNC2_REV(fcmpge, float32, float32_le)
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int AEABI_FUNC2_REV(fcmpgt, float32, float32_lt)
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int AEABI_FUNC2(fcmpun, float32, __unordsf2)
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int AEABI_FUNC(f2iz, float32, float32_to_int32_round_to_zero)
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float64 AEABI_FUNC(f2d, float32, float32_to_float64)
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float32 AEABI_FUNC(i2f, int, int32_to_float32)
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float32 AEABI_FUNC2(fadd, float32, float32_add)
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float32 AEABI_FUNC2(fdiv, float32, float32_div)
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float32 AEABI_FUNC2(fmul, float32, float32_mul)
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float32 AEABI_FUNC2(fsub, float32, float32_sub)
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int
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__aeabi_cfcmpeq_helper(float32 a, float32 b)
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{
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int quiet = 0;
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/* Check if a is a NaN */
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if ((a << 1) > 0xff000000u) {
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/* If it's a signalling NaN we will always signal */
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if ((a & 0x00400000u) == 0)
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return (0);
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quiet = 1;
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}
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/* Check if b is a NaN */
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if ((b << 1) > 0xff000000u) {
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/* If it's a signalling NaN we will always signal */
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if ((b & 0x00400000u) == 0)
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return (0);
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quiet = 1;
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}
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return (quiet);
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}
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