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/* { dg-do run } */
/* { dg-options "-O3 -ftree-loop-distribution -fdump-tree-ldist-details" } */
extern void abort (void);
int a[130], b[128], c[128];
int __attribute__((noinline,noclone))
foo (int len, int x)
{
int i;
for (i = 1; i <= len; ++i)
{
a[i] = a[i + 2] + 1;
b[i] = 0;
a[i + 1] = a[i] - 3;
if (i < x)
c[i] = a[i];
}
return i;
}
int main()
{
int i;
for (i = 0; i < 130; ++i)
a[i] = i;
foo (127, 67);
if (a[0] != 0 || a[1] != 4 || a[127] != 130)
abort ();
return 0;
}
/* Loop splitting splits the iteration space so we end up with two
loops entering loop distribution. Both should have the b[i] = 0
part split out as memset. */
/* { dg-final { scan-tree-dump-times "distributed: split to 1 loops and 1 library calls" 2 "ldist" } } */
/* { dg-final { scan-tree-dump-times "generated memset zero" 2 "ldist" } } */
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