github.com/zxy12/golang_with_comment@v0.0.0-20190701084843-0e6b2aff5ef3/math/sqrt_amd64.s (about)

     1  // Copyright 2009 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  #include "textflag.h"
     6  
     7  // func Sqrt(x float64) float64
     8  TEXT ·Sqrt(SB), NOSPLIT, $0
     9  	XORPS  X0, X0 // break dependency
    10  	SQRTSD x+0(FP), X0
    11  	MOVSD  X0, ret+8(FP)
    12  	RET