73 lines
2.2 KiB
C++
73 lines
2.2 KiB
C++
|
/*
|
||
|
|
* Copyright (C) 2015 The Android Open Source Project
|
||
|
|
*
|
||
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
* you may not use this file except in compliance with the License.
|
||
|
|
* You may obtain a copy of the License at
|
||
|
|
*
|
||
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
*
|
||
|
|
* Unless required by applicable law or agreed to in writing, software
|
||
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
* See the License for the specific language governing permissions and
|
||
|
|
* limitations under the License.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <math.h>
|
||
|
|
|
||
|
|
#include "fpmath.h"
|
||
|
|
|
||
|
|
double fabs(double x) {
|
||
|
|
#if __arm__
|
||
|
|
// Both Clang and GCC insist on moving r0/r1 into a double register
|
||
|
|
// and using fabs where bit-twiddling would be a better choice.
|
||
|
|
// They get fabsf right, but we need to be careful in fabsl too.
|
||
|
|
IEEEd2bits u;
|
||
|
|
u.d = x;
|
||
|
|
u.bits.sign = 0;
|
||
|
|
return u.d;
|
||
|
|
#else
|
||
|
|
return __builtin_fabs(x);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
float fabsf(float x) {
|
||
|
|
return __builtin_fabsf(x);
|
||
|
|
}
|
||
|
|
|
||
|
|
#if defined(__LP64__)
|
||
|
|
long double fabsl(long double x) { return __builtin_fabsl(x); }
|
||
|
|
#else
|
||
|
|
long double fabsl(long double x) {
|
||
|
|
// Don't use __builtin_fabs here because of ARM. (See fabs above.)
|
||
|
|
return fabs(x);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(__aarch64__)
|
||
|
|
float ceilf(float x) { return __builtin_ceilf(x); }
|
||
|
|
double ceil(double x) { return __builtin_ceil(x); }
|
||
|
|
|
||
|
|
float floorf(float x) { return __builtin_floorf(x); }
|
||
|
|
double floor(double x) { return __builtin_floor(x); }
|
||
|
|
|
||
|
|
float fmaf(float x, float y, float z) { return __builtin_fmaf(x, y, z); }
|
||
|
|
double fma(double x, double y, double z) { return __builtin_fma(x, y, z); }
|
||
|
|
|
||
|
|
float fmaxf(float x, float y) { return __builtin_fmaxf(x, y); }
|
||
|
|
double fmax(double x, double y) { return __builtin_fmax(x, y); }
|
||
|
|
|
||
|
|
float fminf(float x, float y) { return __builtin_fminf(x, y); }
|
||
|
|
double fmin(double x, double y) { return __builtin_fmin(x, y); }
|
||
|
|
|
||
|
|
float rintf(float x) { return __builtin_rintf(x); }
|
||
|
|
double rint(double x) { return __builtin_rint(x); }
|
||
|
|
|
||
|
|
float roundf(float x) { return __builtin_roundf(x); }
|
||
|
|
double round(double x) { return __builtin_round(x); }
|
||
|
|
|
||
|
|
float truncf(float x) { return __builtin_truncf(x); }
|
||
|
|
double trunc(double x) { return __builtin_trunc(x); }
|
||
|
|
#endif
|