OpenBLAS/kernel/x86_64/saxpy_microk_sandy-2.c

/***************************************************************************
Copyright (c) 2014, The OpenBLAS Project
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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#define HAVE_KERNEL_16 1
static void saxpy_kernel_16( BLASLONG n, FLOAT *x, FLOAT *y , FLOAT *alpha) __attribute__ ((noinline));

static void saxpy_kernel_16( BLASLONG n, FLOAT *x, FLOAT *y, FLOAT *alpha)
{


	BLASLONG register i = 0;

	__asm__  __volatile__
	(
	"vbroadcastss		(%4), %%ymm0		    \n\t"  // alpha	
	"vmovups	  (%3,%0,4), %%ymm8         \n\t"
	"vmovups	32(%3,%0,4), %%ymm9         \n\t"
	"vmovups	64(%3,%0,4), %%ymm10        \n\t"
	"vmovups	96(%3,%0,4), %%ymm11        \n\t"
	"vmovups	  (%2,%0,4), %%ymm4         \n\t"
	"vmovups	32(%2,%0,4), %%ymm5         \n\t"
	"vmovups	64(%2,%0,4), %%ymm6         \n\t"
	"vmovups	96(%2,%0,4), %%ymm7        \n\t"

	"addq		$32, %0	  	 	             \n\t"
	"subq	        $32, %1			             \n\t"		
	"jz		2f		             \n\t"

	".p2align 4				            \n\t"
	"1:				            \n\t"

	"vmulps		%%ymm4, %%ymm0, %%ymm4		\n\t"
	"vaddps		%%ymm8 , %%ymm4, %%ymm12	     \n\t"
	"vmulps		%%ymm5, %%ymm0, %%ymm5		\n\t"
	"vaddps		%%ymm9 , %%ymm5, %%ymm13	     \n\t"
	"vmulps		%%ymm6, %%ymm0, %%ymm6		\n\t"
	"vaddps		%%ymm10, %%ymm6, %%ymm14	     \n\t"
	"vmulps		%%ymm7, %%ymm0, %%ymm7		\n\t"
	"vaddps		%%ymm11, %%ymm7, %%ymm15	     \n\t"

	"vmovups	  (%3,%0,4), %%ymm8         \n\t"
	"vmovups	32(%3,%0,4), %%ymm9         \n\t"
	"vmovups	64(%3,%0,4), %%ymm10        \n\t"
	"vmovups	96(%3,%0,4), %%ymm11        \n\t"

	"vmovups	  (%2,%0,4), %%ymm4         \n\t"
	"vmovups	32(%2,%0,4), %%ymm5         \n\t"
	"vmovups	64(%2,%0,4), %%ymm6         \n\t"
	"vmovups	96(%2,%0,4), %%ymm7        \n\t"

	"vmovups	%%ymm12, -128(%3,%0,4)		     \n\t"
	"vmovups	%%ymm13,  -96(%3,%0,4)		     \n\t"
	"vmovups	%%ymm14,  -64(%3,%0,4)		     \n\t"
	"vmovups	%%ymm15,  -32(%3,%0,4)		     \n\t"

	"addq		$32, %0	  	 	             \n\t"
	"subq	        $32, %1			             \n\t"		
	"jnz		1b		             \n\t"

	"2:				            \n\t"
	"vmulps		%%ymm4, %%ymm0, %%ymm4		\n\t"
	"vmulps		%%ymm5, %%ymm0, %%ymm5		\n\t"
	"vmulps		%%ymm6, %%ymm0, %%ymm6		\n\t"
	"vmulps		%%ymm7, %%ymm0, %%ymm7		\n\t"

	"vaddps		%%ymm8 , %%ymm4, %%ymm12	     \n\t"
	"vaddps		%%ymm9 , %%ymm5, %%ymm13	     \n\t"
	"vaddps		%%ymm10, %%ymm6, %%ymm14	     \n\t"
	"vaddps		%%ymm11, %%ymm7, %%ymm15	     \n\t"

	"vmovups	%%ymm12, -128(%3,%0,4)		     \n\t"
	"vmovups	%%ymm13,  -96(%3,%0,4)		     \n\t"
	"vmovups	%%ymm14,  -64(%3,%0,4)		     \n\t"
	"vmovups	%%ymm15,  -32(%3,%0,4)		     \n\t"

	"vzeroupper					     \n\t"

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

}