OpenBLAS/kernel/power/ddot_microk_power10.c

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#define HAVE_KERNEL_8 1

static double ddot_kernel_8 (long n, double *x, double *y)
{
  double 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, -16	\n\t"
       "ble		two%=		\n\t"

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

       "xvmaddadp	32, 40, 48	\n\t"
       "xvmaddadp	33, 41, 49	\n\t"
       "lxvp            40, 0(%2)       \n\t"
       "lxvp            48, 0(%3)       \n\t"
       "xvmaddadp	34, 42, 50	\n\t"
       "xvmaddadp	35, 43, 51	\n\t"
       "lxvp            42, 32(%2)      \n\t"
       "lxvp            50, 32(%3)      \n\t"
       "xvmaddadp	36, 44, 52	\n\t"
       "xvmaddadp	37, 45, 53	\n\t"
       "lxvp            44, 64(%2)      \n\t"
       "lxvp            52, 64(%3)      \n\t"
       "xvmaddadp	38, 46, 54	\n\t"
       "xvmaddadp	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, -16	\n\t"
       "bgt		one%=		\n"

     "two%=:				\n\t"

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

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

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

       "xvadddp		32, 32, 36	\n\t"

       XXSWAPD_S(33,32)

       "xsadddp		%x0, 32, 33	\n"

     "#dot=%0 n=%1 x=%4=%2 y=%5=%3\n"
     :
       "=d" (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;
}