https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92280
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2019-10-30
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot
gnu.org
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed, probably escaped my testing. The testcase has
for (int i = 0; i < 4; i++)
{
int t0 = tmp[0][i] + tmp[1][i];
int t1 = tmp[0][i] - tmp[1][i];
int t2 = tmp[2][i] + tmp[3][i];
int t3 = tmp[2][i] - tmp[3][i];
a0 = t0 + t2;
a2 = t0 - t2;
a1 = t1 + t3;
a3 = t1 - t3;
sum += (a0) + (a1) + (a2) + (a3);
}
which is now vectorized.
