OpenBLAS/kernel/x86_64/cabs.S

/*********************************************************************/
/* Copyright 2009, 2010 The University of Texas at Austin.           */
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/* without modification, are permitted provided that the following   */
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/*    THIS  SOFTWARE IS PROVIDED  BY THE  UNIVERSITY OF  TEXAS AT    */
/*    AUSTIN  ``AS IS''  AND ANY  EXPRESS OR  IMPLIED WARRANTIES,    */
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/*********************************************************************/

#define ASSEMBLER
#include "common.h"

	PROLOGUE
	PROFCODE

#ifdef DOUBLE
	movsd	0 * SIZE(ARG1), %xmm0
	movsd	1 * SIZE(ARG1), %xmm1
	pcmpeqb	%xmm4, %xmm4

	psrlq	$1, %xmm4
	andpd	%xmm4, %xmm0
	andpd	%xmm4, %xmm1
	addpd	%xmm1, %xmm0
#else
	movss	0 * SIZE(ARG1), %xmm0
	movss	1 * SIZE(ARG1), %xmm1
	pcmpeqb	%xmm4, %xmm4

	psrld	$1, %xmm4
	andps	%xmm4, %xmm0
	andps	%xmm4, %xmm1
	addps	%xmm1, %xmm0
#endif

#if !defined(DOUBLE) && defined(NEED_F2CCONV)
	cvtss2sd	%xmm0, %xmm0
#endif
	ret

	EPILOGUE