https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118996
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Status|UNCONFIRMED |NEW
Last reconfirmed| |2025-02-24
--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Hongtao Liu from comment #1)
> Looking at the hook description, it looks like x86 still need nozero return
> values under apx (due to AREG, DREG, CREG, BREG, SIREG, DIREG)
One usage is in cse.cc:
record = true;
else if (targetm.small_register_classes_for_mode_p (GET_MODE (x)))
record = false;
else if (targetm.class_likely_spilled_p (REGNO_REG_CLASS (regno)))
record = false;
It should cover AREG, DREG, CREG, BREG, SIREG, DIREG.
