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/* { dg-do run { target { powerpc*-*-* && vmx_hw } } }} */

/* { dg-options "-O2 -funroll-loops -ffast-math -fvariable-expansion-in-unroller -maltivec -fdump-rtl-loop2_unroll" } */

#include "altivec.h"

extern void abort (void);

extern void exit (int);

#define N 256

float in1[N] __attribute__ ((__aligned__ (16))) = {0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57};

float in2[N] __attribute__ ((__aligned__ (16))) = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19};

float

foo (int n)

{

  unsigned i;

  vector float vp1, vp2, vp3, vaccum, vzero, vtmp;

  float accum = 1.0;

  vzero = (vector float){0, 0, 0, 0};

  vaccum = vzero;

  for (i = 0; i < n; i++)

    {

      vp1 = vec_ld (i * 16, in1);

      vp2 = vec_ld (i * 16, in2);

      vaccum = vec_madd (vp1, vp2, vaccum);

    }

  vtmp = vec_sld (vaccum, vaccum, 8);

  vp1 = vec_add (vaccum, vtmp);

  vtmp = vec_sld (vp1, vp1, 4);

  vp2 = vec_add (vp1, vtmp);

  vec_ste (vp2, 0, &accum);

  if (accum != 1518)

    return 0;

  return accum;

}

int

main (void)

{

  if (!foo (3))

    abort ();

   exit (0);

}

/* { dg-final { scan-rtl-dump "Expanding Accumulator" "loop2_unroll" } } */

/* { dg-final { cleanup-rtl-dump "loop*" } } */