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 LIBC_NAMESPACE { 13 14 LLVM_LIBC_FUNCTION(double, cos, (double x)) { 15 __asm__ __volatile__("fcos" : "+t"(x)); 16 return x; 17 } 18 19 } // namespace LIBC_NAMESPACE 20