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/*
* 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
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