bool
scop_do_block (scop_p scop)
{
bool strip_mined = false;
bool interchanged = false;
store_scattering (scop);
strip_mined = lst_do_strip_mine (SCOP_TRANSFORMED_SCHEDULE (scop), 0);
interchanged = scop_do_interchange (scop);
/* If we don't interchange loops, the strip mine alone will not be
profitable, and the transform is not a loop blocking: so revert
the transform. */
if (!interchanged)
{
restore_scattering (scop);
return false;
}
else if (strip_mined && interchanged
&& dump_file && (dump_flags & TDF_DETAILS))
fprintf (dump_file, "SCoP will be loop blocked.\n");
return strip_mined || interchanged;
}
bool
scop_do_block (scop_p scop)
{
store_scattering (scop);
/* If we don't strip mine at least two loops, or not interchange
loops, the strip mine alone will not be profitable, and the
transform is not a loop blocking: so revert the transform. */
if (lst_do_strip_mine (SCOP_TRANSFORMED_SCHEDULE (scop), 0) < 2
|| scop_do_interchange (scop) == 0)
{
restore_scattering (scop);
return false;
}
if (dump_file && (dump_flags & TDF_DETAILS))
fprintf (dump_file, "SCoP will be loop blocked.\n");
return true;
}
bool
scop_do_strip_mine (scop_p scop, int stride)
{
return lst_do_strip_mine (SCOP_TRANSFORMED_SCHEDULE (scop), stride);
}
