OpenBLAS/kernel/power/sdot_microk_power10.c

/***************************************************************************
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*****************************************************************************/

#define HAVE_KERNEL_16 1

static float sdot_kernel_16 (long n, float *x, float *y)
{
  float dot;

  __asm__
    (
       "dcbt		0, %2		\n\t"
       "dcbt		0, %3		\n\t"

       "xxlxor		32, 32,	32	\n\t"
       "xxlxor		33, 33,	33	\n\t"
       "xxlxor		34, 34,	34	\n\t"
       "xxlxor		35, 35,	35	\n\t"
       "xxlxor		36, 36,	36	\n\t"
       "xxlxor		37, 37,	37	\n\t"
       "xxlxor		38, 38,	38	\n\t"
       "xxlxor		39, 39,	39	\n\t"

       "lxvp		40, 0(%2)	\n\t"
       "lxvp		42, 32(%2)	\n\t"
       "lxvp		44, 64(%2)	\n\t"
       "lxvp		46, 96(%2)	\n\t"
       "lxvp		48, 0(%3)	\n\t"
       "lxvp		50, 32(%3)	\n\t"
       "lxvp		52, 64(%3)	\n\t"
       "lxvp		54, 96(%3)	\n\t"

       "addi		%2, %2, 128	\n\t"
       "addi		%3, %3, 128	\n\t"

       "addic.		%1, %1, -32	\n\t"
       "ble		two%=		\n\t"

       ".align	5		\n"
     "one%=:				\n\t"

       "xvmaddasp	32, 40, 48	\n\t"
       "xvmaddasp	33, 41, 49	\n\t"
       "lxvp		40, 0(%2)	\n\t"
       "lxvp		48, 0(%3)	\n\t"
       "xvmaddasp	34, 42, 50	\n\t"
       "xvmaddasp	35, 43, 51	\n\t"
       "lxvp		42, 32(%2)	\n\t"
       "lxvp		50, 32(%3)	\n\t"
       "xvmaddasp	36, 44, 52	\n\t"
       "xvmaddasp	37, 45, 53	\n\t"
       "lxvp		44, 64(%2)	\n\t"
       "lxvp		52, 64(%3)	\n\t"
       "xvmaddasp	38, 46, 54 	\n\t"
       "xvmaddasp	39, 47, 55 	\n\t"
       "lxvp		46, 96(%2)	\n\t"
       "lxvp		54, 96(%3)	\n\t"

       "addi		%2, %2, 128	\n\t"
       "addi		%3, %3, 128	\n\t"

       "addic.		%1, %1, -32	\n\t"
       "bgt		one%=		\n"

     "two%=:				\n\t"

       "xvmaddasp	32, 40, 48	\n\t"
       "xvmaddasp	33, 41, 49	\n\t"
       "xvmaddasp	34, 42, 50	\n\t"
       "xvmaddasp	35, 43, 51	\n\t"
       "xvmaddasp	36, 44, 52	\n\t"
       "xvmaddasp	37, 45, 53	\n\t"
       "xvmaddasp	38, 46, 54	\n\t"
       "xvmaddasp	39, 47, 55	\n\t"

       "xvaddsp		32, 32, 33	\n\t"
       "xvaddsp		34, 34, 35	\n\t"
       "xvaddsp		36, 36, 37	\n\t"
       "xvaddsp		38, 38, 39	\n\t"

       "xvaddsp		32, 32, 34	\n\t"
       "xvaddsp		36, 36, 38	\n\t"

       "xvaddsp		32, 32, 36	\n\t"

       "xxsldwi		33, 32, 32, 2	\n\t"
       "xvaddsp		32, 32, 33	\n\t"

       "xxsldwi		33, 32, 32, 1	\n\t"
       "xvaddsp		32, 32, 33	\n\t"

       "xscvspdp	%x0, 32		\n"

     "#dot=%0 n=%1 x=%4=%2 y=%5=%3\n"
     :
       "=f" (dot),	// 0
       "+r" (n),	// 1
       "+b" (x),	// 2
       "+b" (y)		// 3
     :
       "m" (*x),
       "m" (*y)
     :
       "cr0",
       "vs32","vs33","vs34","vs35","vs36","vs37","vs38","vs39",
       "vs40","vs41","vs42","vs43","vs44","vs45","vs46","vs47",
       "vs48","vs49","vs50","vs51","vs52","vs53","vs54","vs55"
     );

  return dot;
}