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/* { dg-do compile } */

/* We don't (and don't want to) perform this optimisation on soft-float

   targets, where each addition is a library call.  */

/* { dg-require-effective-target hard_float } */

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

extern void abort (void);

float array[10] = { 1,2,3,4,5,6,7,8,9,10 };

int foo (int n)

{

  unsigned i;

  float accum = 1.0;

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

    accum += array[i];

  return accum;

}

int main (void)

{

  return foo (10);

}

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

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