On Mon, Nov 14, 2022 at 10:14 AM Hongtao Liu wrote:
>
> On Fri, Nov 11, 2022 at 10:47 PM Tamar Christina via Gcc-patches
> wrote:
> >
> > Hi All,
> >
> > The current i386 implementation of the TARGET_CAN_CHANGE_MODE_CLASS is
> > currently
> > not useful before re-alloc.
> >
> > In particular
On Fri, Nov 11, 2022 at 10:47 PM Tamar Christina via Gcc-patches
wrote:
>
> Hi All,
>
> The current i386 implementation of the TARGET_CAN_CHANGE_MODE_CLASS is
> currently
> not useful before re-alloc.
>
> In particular before regalloc optimization passes query the hook using
> ALL_REGS,
> but
can_change_mode_class target
> hook to accept QImode conversions
>
> On Fri, Nov 11, 2022 at 10:47 PM Tamar Christina via Gcc-patches patc...@gcc.gnu.org> wrote:
> >
> > Hi All,
> >
> > The current i386 implementation of the
> TARGET_CAN_C
On Fri, Nov 11, 2022 at 10:47 PM Tamar Christina via Gcc-patches
wrote:
>
> Hi All,
>
> The current i386 implementation of the TARGET_CAN_CHANGE_MODE_CLASS is
> currently
> not useful before re-alloc.
>
> In particular before regalloc optimization passes query the hook using
> ALL_REGS,
> but
Hi All,
The current i386 implementation of the TARGET_CAN_CHANGE_MODE_CLASS is currently
not useful before re-alloc.
In particular before regalloc optimization passes query the hook using ALL_REGS,
but because of the
if (MAYBE_FLOAT_CLASS_P (regclass))
return false;
The hook returns
