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/config.h" 14 #include "src/__support/macros/properties/architectures.h" 15 16 #if !defined(LIBC_TARGET_ARCH_IS_AARCH64) 17 #error "Invalid include" 18 #endif 19 20 #include "src/__support/FPUtil/generic/sqrt.h" 21 22 namespace LIBC_NAMESPACE_DECL { 23 namespace fputil { 24 25 template <> LIBC_INLINE float sqrt<float>(float x) { 26 float y; 27 __asm__ __volatile__("fsqrt %s0, %s1\n\t" : "=w"(y) : "w"(x)); 28 return y; 29 } 30 31 template <> LIBC_INLINE double sqrt<double>(double x) { 32 double y; 33 __asm__ __volatile__("fsqrt %d0, %d1\n\t" : "=w"(y) : "w"(x)); 34 return y; 35 } 36 37 } // namespace fputil 38 } // namespace LIBC_NAMESPACE_DECL 39 40 #endif // LLVM_LIBC_SRC___SUPPORT_FPUTIL_AARCH64_SQRT_H 41