/***************************************************************************
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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its contributors may be used to endorse or promote products
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*****************************************************************************/



#define HAVE_KERNEL_4x8 1
static void sgemv_kernel_4x8( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, BLASLONG lda4, FLOAT *alpha) __attribute__ ((noinline));

static void sgemv_kernel_4x8( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, BLASLONG lda4, FLOAT *alpha)
{

	BLASLONG register i = 0;

	__asm__  __volatile__
	(
	"movss    (%3), %%xmm12	 \n\t"	// x0 
	"movss   4(%3), %%xmm13	 \n\t"	// x1 
	"movss   8(%3), %%xmm14	 \n\t"	// x2 
	"movss  12(%3), %%xmm15	 \n\t"	// x3 
	"shufps $0,  %%xmm12, %%xmm12\n\t"	
	"shufps $0,  %%xmm13, %%xmm13\n\t"	
	"shufps $0,  %%xmm14, %%xmm14\n\t"	
	"shufps $0,  %%xmm15, %%xmm15\n\t"	

	"movss  16(%3), %%xmm0	 \n\t"	// x4 
	"movss  20(%3), %%xmm1	 \n\t"	// x5 
	"movss  24(%3), %%xmm2	 \n\t"	// x6 
	"movss  28(%3), %%xmm3	 \n\t"	// x7 
	"shufps $0,  %%xmm0 , %%xmm0 \n\t"	
	"shufps $0,  %%xmm1 , %%xmm1 \n\t"	
	"shufps $0,  %%xmm2 , %%xmm2 \n\t"	
	"shufps $0,  %%xmm3 , %%xmm3 \n\t"	

	"movss    (%9), %%xmm6	     \n\t"	// alpha 
	"shufps $0,  %%xmm6 , %%xmm6 \n\t"	


	".p2align 4				 \n\t"
	"1:				 \n\t"
	"xorps           %%xmm4 , %%xmm4	 \n\t"
	"xorps           %%xmm5 , %%xmm5	 \n\t"
	"movups             (%4,%0,4), %%xmm7          \n\t" // 4 * y

	".p2align 1				       \n\t"
	"movups             (%5,%0,4), %%xmm8          \n\t" 
	"movups             (%6,%0,4), %%xmm9          \n\t" 
	"movups             (%7,%0,4), %%xmm10         \n\t" 
	"movups             (%8,%0,4), %%xmm11         \n\t" 
	".p2align 1				       \n\t"
	"mulps		%%xmm12, %%xmm8		       \n\t"
	"mulps		%%xmm13, %%xmm9		       \n\t"
	"mulps		%%xmm14, %%xmm10	       \n\t"
	"mulps		%%xmm15, %%xmm11	       \n\t"
	"addps		%%xmm8 , %%xmm4		       \n\t"
	"addps		%%xmm9 , %%xmm5		       \n\t"
	"addps		%%xmm10, %%xmm4	               \n\t"
	"addps		%%xmm11, %%xmm5 	       \n\t"

	"movups             (%5,%2,4), %%xmm8          \n\t" 
	"movups             (%6,%2,4), %%xmm9          \n\t" 
	"movups             (%7,%2,4), %%xmm10         \n\t" 
	"movups             (%8,%2,4), %%xmm11         \n\t" 
	".p2align 1				       \n\t"
	"mulps		%%xmm0 , %%xmm8		       \n\t"
	"mulps		%%xmm1 , %%xmm9		       \n\t"
	"mulps		%%xmm2 , %%xmm10	       \n\t"
	"mulps		%%xmm3 , %%xmm11	       \n\t"
	"addps		%%xmm8 , %%xmm4		       \n\t"
	"addps		%%xmm9 , %%xmm5		       \n\t"
	"addps		%%xmm10, %%xmm4	       	       \n\t"
	"addps		%%xmm11, %%xmm5 	       \n\t"

        "addq		$4 , %2	  	 	       \n\t"
	"addps		%%xmm5 , %%xmm4 	       \n\t"
        "addq		$4 , %0	  	 	       \n\t"
	"mulps		%%xmm6 , %%xmm4		       \n\t" 
	"subq	        $4 , %1			       \n\t"		
	"addps		%%xmm4 , %%xmm7 	       \n\t"

	"movups  %%xmm7 , -16(%4,%0,4)		       \n\t"	// 4 * y

	"jnz		1b		       \n\t"

	:
          "+r" (i),	// 0	
	  "+r" (n), 	// 1
          "+r" (lda4)   // 2
        : 
          "r" (x),      // 3
          "r" (y),      // 4
          "r" (ap[0]),  // 5
          "r" (ap[1]),  // 6
          "r" (ap[2]),  // 7
          "r" (ap[3]),  // 8
          "r" (alpha)   // 9
	: "cc", 
	  "%xmm0", "%xmm1", 
	  "%xmm2", "%xmm3", 
	  "%xmm4", "%xmm5", 
	  "%xmm6", "%xmm7", 
	  "%xmm8", "%xmm9", "%xmm10", "%xmm11",
	  "%xmm12", "%xmm13", "%xmm14", "%xmm15",
	  "memory"
	);

} 




#define HAVE_KERNEL_4x4 1
static void sgemv_kernel_4x4( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, FLOAT *alpha) __attribute__ ((noinline));

static void sgemv_kernel_4x4( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, FLOAT *alpha)
{

	BLASLONG register i = 0;

	__asm__  __volatile__
	(
	"movss    (%2), %%xmm12	 \n\t"	// x0 
	"movss   4(%2), %%xmm13	 \n\t"	// x1 
	"movss   8(%2), %%xmm14	 \n\t"	// x2 
	"movss  12(%2), %%xmm15	 \n\t"	// x3 
	"shufps $0,  %%xmm12, %%xmm12\n\t"	
	"shufps $0,  %%xmm13, %%xmm13\n\t"	
	"shufps $0,  %%xmm14, %%xmm14\n\t"	
	"shufps $0,  %%xmm15, %%xmm15\n\t"	

	"movss    (%8), %%xmm6	     \n\t"	// alpha 
	"shufps $0,  %%xmm6 , %%xmm6 \n\t"	

	".p2align 4				 \n\t"
	"1:				 \n\t"
	"xorps           %%xmm4 , %%xmm4	 \n\t"
	"movups	       (%3,%0,4), %%xmm7	 \n\t"	// 4 * y

	"movups             (%4,%0,4), %%xmm8          \n\t" 
	"movups             (%5,%0,4), %%xmm9          \n\t" 
	"movups             (%6,%0,4), %%xmm10         \n\t" 
	"movups             (%7,%0,4), %%xmm11         \n\t" 
	"mulps		%%xmm12, %%xmm8		       \n\t"
	"mulps		%%xmm13, %%xmm9		       \n\t"
	"mulps		%%xmm14, %%xmm10	       \n\t"
	"mulps		%%xmm15, %%xmm11	       \n\t"
	"addps		%%xmm8 , %%xmm4		       \n\t"
        "addq		$4 , %0	  	 	       \n\t"
	"addps		%%xmm9 , %%xmm4		       \n\t"
	"subq	        $4 , %1			       \n\t"		
	"addps		%%xmm10 , %%xmm4	       \n\t"
	"addps		%%xmm4 , %%xmm11	       \n\t"

	"mulps		%%xmm6 , %%xmm11	       \n\t" 
	"addps		%%xmm7 , %%xmm11 	       \n\t"
	"movups  %%xmm11, -16(%3,%0,4)		       \n\t"	// 4 * y

	"jnz		1b		       \n\t"

	:
          "+r" (i),	// 0	
	  "+r" (n)  	// 1
        : 
          "r" (x),      // 2
          "r" (y),      // 3
          "r" (ap[0]),  // 4
          "r" (ap[1]),  // 5
          "r" (ap[2]),  // 6
          "r" (ap[3]),  // 7
          "r" (alpha)   // 8
	: "cc", 
	  "%xmm4", "%xmm5", 
	  "%xmm6", "%xmm7", 
	  "%xmm8", "%xmm9", "%xmm10", "%xmm11",
	  "%xmm12", "%xmm13", "%xmm14", "%xmm15",
	  "memory"
	);

} 


