Text file src/pkg/math/sqrt_arm.s

     1	// Copyright 2011 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		MOVB	runtime·goarm(SB), R11
    10		CMP	$5, R11
    11		BEQ	arm5
    12		MOVD	x+0(FP),F0
    13		SQRTD	F0,F0
    14		MOVD	F0,ret+8(FP)
    15		RET
    16	arm5:
    17		// Tail call to Go implementation.
    18		// Can't use JMP, as in softfloat mode SQRTD is rewritten
    19		// to a CALL, which makes this function have a frame.
    20		RET	·sqrt(SB)

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