OpenBLAS/kernel/power/dasum_microk_power8.c

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/**************************************************************************************
* 2016/03/28 Werner Saar (wernsaar@googlemail.com)
* 	 BLASTEST 		: OK
* 	 CTEST			: OK
* 	 TEST			: OK
*	 LAPACK-TEST		: OK
**************************************************************************************/

#define HAVE_KERNEL_16 1

static double dasum_kernel_16 (long n, double *x)
{
  double sum;
  __vector double t0;
  __vector double t1;
  __vector double t2;
  __vector double t3;

  __asm__
    (
       "dcbt		0, %2		\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"

       "lxvd2x		40, 0, %2	\n\t"
       "lxvd2x		41, %8, %2	\n\t"
       "lxvd2x		42, %9, %2	\n\t"
       "lxvd2x		43, %10, %2	\n\t"
       "lxvd2x		44, %11, %2	\n\t"
       "lxvd2x		45, %12, %2	\n\t"
       "lxvd2x		46, %13, %2	\n\t"
       "lxvd2x		47, %14, %2	\n\t"

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

       "addic.		%1, %1, -16	\n\t"
       "ble		two%=		\n\t"

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

       "xvabsdp		48, 40		\n\t"
       "xvabsdp		49, 41		\n\t"
       "xvabsdp		50, 42		\n\t"
       "xvabsdp		51, 43		\n\t"

       "lxvd2x		40, 0, %2	\n\t"
       "lxvd2x		41, %8, %2	\n\t"

       "xvabsdp		%x3, 44		\n\t"
       "xvabsdp		%x4, 45		\n\t"

       "lxvd2x		42, %9, %2	\n\t"
       "lxvd2x		43, %10, %2	\n\t"

       "xvabsdp		%x5, 46		\n\t"
       "xvabsdp		%x6, 47		\n\t"

       "lxvd2x		44, %11, %2	\n\t"
       "lxvd2x		45, %12, %2	\n\t"

       "xvadddp		32, 32, 48	\n\t"
       "xvadddp		33, 33, 49	\n\t"

       "lxvd2x		46, %13, %2	\n\t"
       "lxvd2x		47, %14, %2	\n\t"

       "xvadddp		34, 34, 50	\n\t"
       "xvadddp		35, 35, 51	\n\t"
       "addi		%2, %2, 128	\n\t"
       "xvadddp		36, 36, %x3	\n\t"
       "xvadddp		37, 37, %x4	\n\t"
       "addic.		%1, %1, -16	\n\t"
       "xvadddp		38, 38, %x5	\n\t"
       "xvadddp		39, 39, %x6	\n\t"

       "bgt		one%=		\n"

     "two%=:				\n\t"

       "xvabsdp		48, 40		\n\t"
       "xvabsdp		49, 41		\n\t"
       "xvabsdp		50, 42		\n\t"
       "xvabsdp		51, 43		\n\t"
       "xvabsdp		%x3, 44		\n\t"
       "xvabsdp		%x4, 45		\n\t"
       "xvabsdp		%x5, 46		\n\t"
       "xvabsdp		%x6, 47		\n\t"

       "xvadddp		32, 32, 48	\n\t"
       "xvadddp		33, 33, 49	\n\t"
       "xvadddp		34, 34, 50	\n\t"
       "xvadddp		35, 35, 51	\n\t"
       "xvadddp		36, 36, %x3	\n\t"
       "xvadddp		37, 37, %x4	\n\t"
       "xvadddp		38, 38, %x5	\n\t"
       "xvadddp		39, 39, %x6	\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"

     "#n=%1 x=%3=%2 sum=%0 o16=%8 o32=%9 o48=%10 o64=%11 o80=%12 o96=%13 o112=%14\n"
     "#t0=%x3 t1=%x4 t2=%x5 t3=%x6"
     :
       "=d" (sum),	// 0
       "+r" (n),	// 1
       "+b" (x),	// 2
       "=wa" (t0),	// 3
       "=wa" (t1),	// 4
       "=wa" (t2),	// 5
       "=wa" (t3)	// 6
     :
       "m" (*x),
       "b" (16),	// 8
       "b" (32),	// 9
       "b" (48),	// 10
       "b" (64),	// 11
       "b" (80),	// 12
       "b" (96),	// 13
       "b" (112)	// 14
     :
       "cr0",
       "vs32","vs33","vs34","vs35","vs36","vs37","vs38","vs39",
       "vs40","vs41","vs42","vs43","vs44","vs45","vs46","vs47",
       "vs48","vs49","vs50","vs51"
     );

  return sum;
}