http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49471
--- Comment #2 from razya at il dot ibm.com 2011-06-20 12:31:32 UTC ---
(In reply to comment #1)
> Why is
> D.7313_5 = MEM[(struct *).paral_data_param_1(D)].D.7288; /* Number of loop
> iterations. */
> of type __int128? That looks bogus.
the size of 128 was determined according to the precision of the ivs in
canonicalize_loop_ivs:
canonicalize_loop_ivs (struct loop *loop, tree *nit, bool bump_in_latch)
{
unsigned precision = TYPE_PRECISION (TREE_TYPE (*nit));
for (psi = gsi_start_phis (loop->header);
!gsi_end_p (psi); gsi_next (&psi))
{
gimple phi = gsi_stmt (psi);
tree res = PHI_RESULT (phi);
if (is_gimple_reg (res) && TYPE_PRECISION (TREE_TYPE (res)) > precision)
precision = TYPE_PRECISION (TREE_TYPE (res));
}
type = lang_hooks.types.type_for_size (precision, 1); // precision == 128
...
}
Does it seem that the precision should not determine the new type size, or that
the precision itself being 128 is strange?
