/***************************************************************************
Copyright (c) 2014, The OpenBLAS Project
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
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2. Redistributions in binary form must reproduce the above copyright
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its contributors may be used to endorse or promote products
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
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*****************************************************************************/

#define HAVE_KERNEL_4x4 1
static void ssymv_kernel_4x4( BLASLONG from, BLASLONG to, FLOAT **a, FLOAT *x, FLOAT *y, FLOAT *temp1, FLOAT *temp2) __attribute__ ((noinline));

static void ssymv_kernel_4x4(BLASLONG from, BLASLONG to, FLOAT **a, FLOAT *x, FLOAT *y, FLOAT *temp1, FLOAT *temp2)
{


	__asm__  __volatile__
	(
	"vxorps		%%xmm0 , %%xmm0 , %%xmm0     \n\t"	// temp2[0]
	"vxorps		%%xmm1 , %%xmm1 , %%xmm1     \n\t"	// temp2[1]
	"vxorps		%%xmm2 , %%xmm2 , %%xmm2     \n\t"	// temp2[2]
	"vxorps		%%xmm3 , %%xmm3 , %%xmm3     \n\t"	// temp2[3]
	"vbroadcastss   (%8),    %%xmm4	             \n\t"	// temp1[0]
	"vbroadcastss  4(%8),    %%xmm5	             \n\t"	// temp1[1]
	"vbroadcastss  8(%8),    %%xmm6	             \n\t"	// temp1[2]
	"vbroadcastss 12(%8),    %%xmm7	             \n\t"	// temp1[3]

	".align 16				     \n\t"
	"1:				     \n\t"

	"vmovups	(%4,%0,4), %%xmm12	           \n\t"  // 2 * a
	"vmovups	(%2,%0,4), %%xmm8	           \n\t"  // 2 * x
	"vmovups	(%3,%0,4), %%xmm9	           \n\t"  // 2 * y

	"vmovups	(%5,%0,4), %%xmm13	           \n\t"  // 2 * a

	"vfmaddps	%%xmm0 , %%xmm8, %%xmm12 , %%xmm0  \n\t"  // temp2 += x * a
	"vfmaddps	%%xmm9 , %%xmm4, %%xmm12 , %%xmm9  \n\t"  // y     += temp1 * a
	"vmovups	(%6,%0,4), %%xmm14	           \n\t"  // 2 * a

	"vfmaddps	%%xmm1 , %%xmm8, %%xmm13 , %%xmm1  \n\t"  // temp2 += x * a
	"vfmaddps	%%xmm9 , %%xmm5, %%xmm13 , %%xmm9  \n\t"  // y     += temp1 * a
	"vmovups	(%7,%0,4), %%xmm15	           \n\t"  // 2 * a

	"vfmaddps	%%xmm2 , %%xmm8, %%xmm14 , %%xmm2  \n\t"  // temp2 += x * a
	"vfmaddps	%%xmm9 , %%xmm6, %%xmm14 , %%xmm9  \n\t"  // y     += temp1 * a

	"vfmaddps	%%xmm3 , %%xmm8, %%xmm15 , %%xmm3  \n\t"  // temp2 += x * a
	"vfmaddps	%%xmm9 , %%xmm7, %%xmm15 , %%xmm9  \n\t"  // y     += temp1 * a

	"addq		$4 , %0	  	 	      \n\t"

	"vmovups	%%xmm9 ,  -16(%3,%0,4)		   \n\t"

	"cmpq		%0 , %1			      \n\t"
	"jnz		1b		      \n\t"

	"vmovss		  (%9), %%xmm4		      \n\t"
	"vmovss		 4(%9), %%xmm5		      \n\t"
	"vmovss		 8(%9), %%xmm6		      \n\t"
	"vmovss		12(%9), %%xmm7		      \n\t"

	"vhaddps        %%xmm0, %%xmm0, %%xmm0  \n\t"
	"vhaddps        %%xmm1, %%xmm1, %%xmm1  \n\t"
	"vhaddps        %%xmm2, %%xmm2, %%xmm2  \n\t"
	"vhaddps        %%xmm3, %%xmm3, %%xmm3  \n\t"
	"vhaddps        %%xmm0, %%xmm0, %%xmm0  \n\t"
	"vhaddps        %%xmm1, %%xmm1, %%xmm1  \n\t"
	"vhaddps        %%xmm2, %%xmm2, %%xmm2  \n\t"
	"vhaddps        %%xmm3, %%xmm3, %%xmm3  \n\t"

	"vaddss		%%xmm4, %%xmm0, %%xmm0  \n\t"
	"vaddss		%%xmm5, %%xmm1, %%xmm1  \n\t"
	"vaddss		%%xmm6, %%xmm2, %%xmm2  \n\t"
	"vaddss		%%xmm7, %%xmm3, %%xmm3  \n\t"

	"vmovss         %%xmm0 ,  (%9)		\n\t"	// save temp2
	"vmovss         %%xmm1 , 4(%9)		\n\t"	// save temp2
	"vmovss         %%xmm2 , 8(%9)		\n\t"	// save temp2
	"vmovss         %%xmm3 ,12(%9)		\n\t"	// save temp2

	:
          "+r" (from)	// 0	
        :
	  "r" (to),  	// 1
          "r" (x),      // 2
          "r" (y),      // 3
          "r" (a[0]),	// 4
          "r" (a[1]),	// 5
          "r" (a[2]),	// 6
          "r" (a[3]),	// 8
          "r" (temp1),  // 8
          "r" (temp2)   // 9
	: "cc", 
	  "%xmm0", "%xmm1", "%xmm2", "%xmm3", 
	  "%xmm4", "%xmm5", "%xmm6", "%xmm7", 
	  "%xmm8", "%xmm9", "%xmm10", "%xmm11", 
	  "%xmm12", "%xmm13", "%xmm14", "%xmm15",
	  "memory"
	);

} 


