1 //===-- Square root of IEEE 754 floating point numbers ----------*- C++ -*-===// 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 #ifndef LLVM_LIBC_SRC___SUPPORT_FPUTIL_AARCH64_SQRT_H 10 #define LLVM_LIBC_SRC___SUPPORT_FPUTIL_AARCH64_SQRT_H 11 12 #include "src/__support/common.h" 13 #include "src/__support/macros/properties/architectures.h" 14 15 #if !defined(LIBC_TARGET_ARCH_IS_AARCH64) 16 #error "Invalid include" 17 #endif 18 19 #include "src/__support/FPUtil/generic/sqrt.h" 20 21 namespace LIBC_NAMESPACE { 22 namespace fputil { 23 24 template <> LIBC_INLINE float sqrt<float>(float x) { 25 float y; 26 __asm__ __volatile__("fsqrt %s0, %s1\n\t" : "=w"(y) : "w"(x)); 27 return y; 28 } 29 30 template <> LIBC_INLINE double sqrt<double>(double x) { 31 double y; 32 __asm__ __volatile__("fsqrt %d0, %d1\n\t" : "=w"(y) : "w"(x)); 33 return y; 34 } 35 36 } // namespace fputil 37 } // namespace LIBC_NAMESPACE 38 39 #endif // LLVM_LIBC_SRC___SUPPORT_FPUTIL_AARCH64_SQRT_H 40