OpenBLAS/kernel/x86_64/dgemv_n_microk_haswell-4.c

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#define HAVE_KERNEL_4x4 1
static void dgemv_kernel_4x4( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, FLOAT *alpha) __attribute__ ((noinline));

static void dgemv_kernel_4x4( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, FLOAT *alpha)
{

	BLASLONG register i = 0;

	__asm__  __volatile__
	(
	"vbroadcastsd    (%2), %%ymm12	 \n\t"	// x0 
	"vbroadcastsd   8(%2), %%ymm13	 \n\t"	// x1 
	"vbroadcastsd  16(%2), %%ymm14	 \n\t"	// x2 
	"vbroadcastsd  24(%2), %%ymm15	 \n\t"	// x3 

	"vmovups	(%4,%0,8), %%ymm0	 \n\t"
	"vmovups	(%5,%0,8), %%ymm1	 \n\t"
	"vmovups	(%6,%0,8), %%ymm2	 \n\t"
	"vmovups	(%7,%0,8), %%ymm3	 \n\t"
	"vbroadcastsd    (%8), %%ymm6 	 \n\t"	// alpha 

        "addq		$4 , %0	  	 	      \n\t"
	"subq	        $4 , %1			      \n\t"		
	"jz		2f		      \n\t"

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

	"vmulpd        %%ymm0 , %%ymm12, %%ymm4      \n\t" 
	"vmulpd        %%ymm1 , %%ymm13, %%ymm5      \n\t" 
	"vmovups	(%4,%0,8), %%ymm0	 \n\t"
	"vmovups	(%5,%0,8), %%ymm1	 \n\t"
	"vfmadd231pd   %%ymm2 , %%ymm14, %%ymm4	     \n\t"
	"vfmadd231pd   %%ymm3 , %%ymm15, %%ymm5	     \n\t"
	"vmovups	(%6,%0,8), %%ymm2	 \n\t"
	"vmovups	(%7,%0,8), %%ymm3	 \n\t"

	"vmovups	-32(%3,%0,8), %%ymm8	       \n\t"	// 4 * y
	"vaddpd		 %%ymm4 , %%ymm5 , %%ymm4      \n\t"
	"vfmadd231pd     %%ymm6 , %%ymm4 , %%ymm8      \n\t"

	"vmovups         %%ymm8,   -32(%3,%0,8)	      \n\t"	// 4 * y

        "addq		$4 , %0	  	 	      \n\t"
	"subq	        $4 , %1			      \n\t"		
	"jnz		1b		      \n\t"
	

	"2:				 \n\t"

	"vmulpd        %%ymm0 , %%ymm12, %%ymm4      \n\t" 
	"vmulpd        %%ymm1 , %%ymm13, %%ymm5      \n\t" 
	"vfmadd231pd   %%ymm2 , %%ymm14, %%ymm4	     \n\t"
	"vfmadd231pd   %%ymm3 , %%ymm15, %%ymm5	     \n\t"


	"vmovups	-32(%3,%0,8), %%ymm8	       \n\t"	// 4 * y
	"vaddpd		 %%ymm4 , %%ymm5 , %%ymm4      \n\t"
	"vfmadd231pd     %%ymm6 , %%ymm4 , %%ymm8      \n\t"

	"vmovups  %%ymm8,   -32(%3,%0,8)	      \n\t"	// 4 * y


	"vzeroupper			              \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", 
	  "%xmm0", "%xmm1", "%xmm2", "%xmm3",
	  "%xmm4", "%xmm5", "%xmm6", "%xmm7",
	  "%xmm8", "%xmm9", "%xmm10", "%xmm11",
	  "%xmm12", "%xmm13", "%xmm14", "%xmm15",
	  "memory"
	);

} 


#define HAVE_KERNEL_4x2

static void dgemv_kernel_4x2( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, FLOAT *alpha) __attribute__ ((noinline));

static void dgemv_kernel_4x2( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, FLOAT *alpha)
{

	BLASLONG register i = 0;

	__asm__  __volatile__
	(
	"vbroadcastsd    (%2), %%ymm12	 \n\t"	// x0 
	"vbroadcastsd   8(%2), %%ymm13	 \n\t"	// x1 

	"vmovups	(%4,%0,8), %%ymm0	 \n\t"
	"vmovups	(%5,%0,8), %%ymm1	 \n\t"

	"vbroadcastsd    (%6), %%ymm6 	 \n\t"	// alpha 

        "addq		$4 , %0	  	 	      \n\t"
	"subq	        $4 , %1			      \n\t"		
	"jz		2f		      \n\t"

	"1:				 \n\t"

	"vmulpd        %%ymm0 , %%ymm12, %%ymm4      \n\t" 
	"vmulpd        %%ymm1 , %%ymm13, %%ymm5      \n\t" 
	"vmovups	(%4,%0,8), %%ymm0	 \n\t"
	"vmovups	(%5,%0,8), %%ymm1	 \n\t"

	"vmovups	-32(%3,%0,8), %%ymm8	       \n\t"	// 4 * y
	"vaddpd		 %%ymm4 , %%ymm5 , %%ymm4      \n\t"
	"vfmadd231pd     %%ymm6 , %%ymm4 , %%ymm8      \n\t"

	"vmovups         %%ymm8,   -32(%3,%0,8)	      \n\t"	// 4 * y

        "addq		$4 , %0	  	 	      \n\t"
	"subq	        $4 , %1			      \n\t"		
	"jnz		1b		      \n\t"
	

	"2:				 \n\t"

	"vmulpd        %%ymm0 , %%ymm12, %%ymm4      \n\t" 
	"vmulpd        %%ymm1 , %%ymm13, %%ymm5      \n\t" 


	"vmovups	-32(%3,%0,8), %%ymm8	       \n\t"	// 4 * y
	"vaddpd		 %%ymm4 , %%ymm5 , %%ymm4      \n\t"
	"vfmadd231pd     %%ymm6 , %%ymm4 , %%ymm8      \n\t"

	"vmovups  %%ymm8,   -32(%3,%0,8)	      \n\t"	// 4 * y


	"vzeroupper			              \n\t"


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