libc/src/math/generic/fabs.cpp

   1 //===-- Implementation of fabs function -----------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "src/math/fabs.h"
  10 #include "src/__support/FPUtil/BasicOperations.h"
  11 #include "src/__support/common.h"
  12 #include "src/__support/macros/config.h"
  13
  14 namespace LIBC_NAMESPACE_DECL {
  15
  16 LLVM_LIBC_FUNCTION(double, fabs, (double x)) {
  17 #ifdef __LIBC_MISC_MATH_BASIC_OPS_OPT
  18   return __builtin_fabs(x);
  19 #else
  20   return fputil::abs(x);
  21 #endif
  22 }
  23
  24 } // namespace LIBC_NAMESPACE_DECL