libc/src/math/x86_64/cos.cpp

   1 //===-- Implementation of the cos function for x86_64 ---------------------===//
   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/cos.h"
  10 #include "src/__support/common.h"
  11
  12 namespace __llvm_libc {
  13
  14 LLVM_LIBC_FUNCTION(double, cos, (double x)) {
  15   __asm__ __volatile__("fcos" : "+t"(x));
  16   return x;
  17 }
  18
  19 } // namespace __llvm_libc