On Tue, Jul 20, 2021 at 8:12 AM Richard Sandiford
wrote:
>
> Richard Sandiford via Gcc-patches writes:
> > "H.J. Lu via Gcc-patches" writes:
> >> On Mon, Jul 19, 2021 at 11:38 PM Richard Sandiford
> >> wrote:
> >>>
> >>> "H.J. Lu via Gcc-patches" writes:
> >>> >> > + {
> >>> >> > + /
Richard Sandiford via Gcc-patches writes:
> "H.J. Lu via Gcc-patches" writes:
>> On Mon, Jul 19, 2021 at 11:38 PM Richard Sandiford
>> wrote:
>>>
>>> "H.J. Lu via Gcc-patches" writes:
>>> >> > + {
>>> >> > + /* First generate subreg of word mode if the previous mode is
>>> >> > +
"H.J. Lu via Gcc-patches" writes:
> On Mon, Jul 19, 2021 at 11:38 PM Richard Sandiford
> wrote:
>>
>> "H.J. Lu via Gcc-patches" writes:
>> >> > + {
>> >> > + /* First generate subreg of word mode if the previous mode is
>> >> > + wider than word mode and word mode is wider tha
On Tue, Jul 20, 2021 at 5:48 AM H.J. Lu wrote:
>
> On Mon, Jul 19, 2021 at 11:38 PM Richard Sandiford
> wrote:
> >
> > "H.J. Lu via Gcc-patches" writes:
> > >> > + {
> > >> > + /* First generate subreg of word mode if the previous mode is
> > >> > + wider than word mode and wo
On Mon, Jul 19, 2021 at 11:38 PM Richard Sandiford
wrote:
>
> "H.J. Lu via Gcc-patches" writes:
> >> > + {
> >> > + /* First generate subreg of word mode if the previous mode is
> >> > + wider than word mode and word mode is wider than MODE. */
> >> > + prev_rtx = simpli
"H.J. Lu via Gcc-patches" writes:
>> > + {
>> > + /* First generate subreg of word mode if the previous mode is
>> > + wider than word mode and word mode is wider than MODE. */
>> > + prev_rtx = simplify_gen_subreg (word_mode, prev_rtx,
>> > +
gt; >> rather than assuming that each piece can be represented as
> >> > >> a scalar_int_mode.
> >> > >>
> >> > >
> >> > > The current by-pieces infrastructure operates on scalar_int_mode.
> >> > > Only for m
>> > >>
>> > >
>> > > The current by-pieces infrastructure operates on scalar_int_mode.
>> > > Only for memset, there is
>> > >
>> > > /* Callback routine for store_by_pieces. Return the RTL of a register
>> > >cont
consecutive copies of the unsigned
> > >char value given in the RTL register data. For example, if mode is
> > > 4 bytes wide, return the RTL for 0x01010101*data. If PREV isn't
> > >nullptr, it has the RTL info from the previous iteration. */
