OpenBLAS/kernel/x86_64/caxpy_microk_haswell-2.c

/***************************************************************************
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#define HAVE_KERNEL_8 1
static void caxpy_kernel_8( BLASLONG n, FLOAT *x, FLOAT *y , FLOAT *alpha) __attribute__ ((noinline));

static void caxpy_kernel_8( BLASLONG n, FLOAT *x, FLOAT *y, FLOAT *alpha)
{

#if !defined(CONJ)
	FLOAT mvec[8] = { -1.0, 1.0, -1.0, 1.0, -1.0, 1.0, -1.0, 1.0 };
#else
	FLOAT mvec[8] = { 1.0, -1.0, 1.0, -1.0, 1.0, -1.0, 1.0, -1.0 };
#endif

	BLASLONG register i = 0;

	__asm__  __volatile__
	(
	"vzeroupper					    \n\t"
	"vbroadcastss		(%4), %%ymm0		    \n\t"  // real part of alpha
	"vbroadcastss	       4(%4), %%ymm1		    \n\t"  // imag part of alpha
#if !defined(CONJ)
	"vmulps		(%5), %%ymm1 , %%ymm1		    \n\t"
#else
	"vmulps		(%5), %%ymm0 , %%ymm0		    \n\t"
#endif

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

	"vmovups        (%2,%0,4), %%ymm5                   \n\t" // 4 complex values from x
	".p2align 1					    \n\t"
	"vmovups      32(%2,%0,4), %%ymm7                   \n\t" // 4 complex values from x
	"vmovups      64(%2,%0,4), %%ymm9                   \n\t" // 4 complex values from x
	"vmovups      96(%2,%0,4), %%ymm11                  \n\t" // 4 complex values from x

	"vmovups     128(%2,%0,4), %%ymm12                  \n\t" // 4 complex values from x
	"vmovups     160(%2,%0,4), %%ymm13                  \n\t" // 4 complex values from x
	"vmovups     192(%2,%0,4), %%ymm14                  \n\t" // 4 complex values from x
	"vmovups     224(%2,%0,4), %%ymm15                  \n\t" // 4 complex values from x

	"vpermilps	$0xb1 , %%ymm5 , %%ymm4 	    \n\t"  // exchange real and imag part
	"vpermilps	$0xb1 , %%ymm7 , %%ymm6 	    \n\t"  // exchange real and imag part
	"vpermilps	$0xb1 , %%ymm9 , %%ymm8 	    \n\t"  // exchange real and imag part
	"vpermilps	$0xb1 , %%ymm11, %%ymm10 	    \n\t"  // exchange real and imag part

	"vfmadd213ps    (%3,%0,4), %%ymm0 , %%ymm5          \n\t"
	".p2align 1					    \n\t"
	"vfmadd213ps  32(%3,%0,4), %%ymm0 , %%ymm7          \n\t"
	"vfmadd213ps  64(%3,%0,4), %%ymm0 , %%ymm9          \n\t"
	"vfmadd213ps  96(%3,%0,4), %%ymm0 , %%ymm11         \n\t"

	"vfmadd231ps	%%ymm1 , %%ymm4 , %%ymm5   \n\t"
	"vfmadd231ps	%%ymm1 , %%ymm6 , %%ymm7   \n\t"
	"vfmadd231ps	%%ymm1 , %%ymm8 , %%ymm9   \n\t"
	"vfmadd231ps	%%ymm1 , %%ymm10, %%ymm11  \n\t"

	"vpermilps	$0xb1 , %%ymm12, %%ymm4 	    \n\t"  // exchange real and imag part
	"vpermilps	$0xb1 , %%ymm13, %%ymm6 	    \n\t"  // exchange real and imag part
	"vpermilps	$0xb1 , %%ymm14, %%ymm8 	    \n\t"  // exchange real and imag part
	"vpermilps	$0xb1 , %%ymm15, %%ymm10 	    \n\t"  // exchange real and imag part

	"vfmadd213ps 128(%3,%0,4), %%ymm0 , %%ymm12         \n\t"
	"vfmadd213ps 160(%3,%0,4), %%ymm0 , %%ymm13         \n\t"
	"vfmadd213ps 192(%3,%0,4), %%ymm0 , %%ymm14         \n\t"
	"vfmadd213ps 224(%3,%0,4), %%ymm0 , %%ymm15         \n\t"

	"vfmadd231ps	%%ymm1 , %%ymm4 , %%ymm12  \n\t"
	"vfmadd231ps	%%ymm1 , %%ymm6 , %%ymm13  \n\t"
	"vfmadd231ps	%%ymm1 , %%ymm8 , %%ymm14  \n\t"
	"vfmadd231ps	%%ymm1 , %%ymm10, %%ymm15  \n\t"

	"vmovups	%%ymm5 ,   (%3,%0,4)		    \n\t"
	".p2align 1					    \n\t"
	"vmovups	%%ymm7 , 32(%3,%0,4)		    \n\t"
	"vmovups	%%ymm9 , 64(%3,%0,4)		    \n\t"
	"vmovups	%%ymm11, 96(%3,%0,4)		    \n\t"

	"vmovups	%%ymm12,128(%3,%0,4)		    \n\t"
	"vmovups	%%ymm13,160(%3,%0,4)		    \n\t"
	"vmovups	%%ymm14,192(%3,%0,4)		    \n\t"
	"vmovups	%%ymm15,224(%3,%0,4)		    \n\t"

	"addq		$64, %0	  	 	             \n\t"
	"subq	        $32, %1			             \n\t"		
	"jnz		1b		             \n\t"
	"vzeroupper					    \n\t"

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


}