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/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-empty -fdump-tree-final_cleanup" } */
int foo (int n)
{
while (n >= 45)
n -= 45;
return n;
}
int bar (int n)
{
while (n >= 64)
n -= 64;
return n;
}
int bla (int n)
{
int i = 0;
while (n >= 45)
{
i++;
n -= 45;
}
return i;
}
int baz (int n)
{
int i = 0;
while (n >= 64)
{
i++;
n -= 64;
}
return i;
}
/* The loops computing division/modulo by 64 should be eliminated. */
/* { dg-final { scan-tree-dump-times "Removing empty loop" 2 "empty" } } */
/* There should be no division/modulo in the final dump (division and modulo
by 64 are done using bit operations). */
/* { dg-final { scan-tree-dump-times "/" 0 "final_cleanup" } } */
/* { dg-final { scan-tree-dump-times "%" 0 "final_cleanup" } } */
/* { dg-final { cleanup-tree-dump "empty" } } */
/* { dg-final { cleanup-tree-dump "final_cleanup" } } */
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