Sent a new version for this in
https://gcc.gnu.org/pipermail/gcc-patches/2024-October/665794.html.
Thanks,
Konstantinos.
On Fri, Aug 30, 2024 at 4:32 PM Richard Sandiford
wrote:
>
> Manolis Tsamis writes:
> >> > I could have some help with that, because after the new changes a
> >> > subreg rel
Manolis Tsamis writes:
>> > I could have some help with that, because after the new changes a
>> > subreg related ICE also happens within store_bit_field when a DI ->
>> > V4SI case is hit. Afaik store_bit_field should just return NULL if it
>> > can't handle something so I don't really know how t
On Thu, Aug 29, 2024 at 9:16 PM Richard Sandiford
wrote:
>
> Manolis Tsamis writes:
> > On Fri, Aug 16, 2024 at 5:33 PM Richard Sandiford
> > wrote:
> >> Manolis Tsamis writes:
> >> > +}
> >> > +
> >> > + virtual unsigned int execute (function *) override;
> >> > +}; // class pass_rtl_avoi
On 8/29/24 12:16 PM, Richard Sandiford wrote:
Most passes were written while the codebase was still C. I think newer
passes have generally been written in the way I described. Where possible,
it'd be better for new code to avoid using globals to communicate
information between functions, to
Manolis Tsamis writes:
> On Fri, Aug 16, 2024 at 5:33 PM Richard Sandiford
> wrote:
>> Manolis Tsamis writes:
>> > +}
>> > +
>> > + virtual unsigned int execute (function *) override;
>> > +}; // class pass_rtl_avoid_store_forwarding
>> > +
>> > +static unsigned int stats_sf_detected = 0;
>
Hi Richard,
Thanks a lot for the extensive review and useful suggestions (and
sorry for the late reply). I have implemented most of these for a next
version, so let me address your individual comments below:
On Fri, Aug 16, 2024 at 5:33 PM Richard Sandiford
wrote:
>
> Manolis Tsamis writes:
> >
Manolis Tsamis writes:
> This pass detects cases of expensive store forwarding and tries to avoid them
> by reordering the stores and using suitable bit insertion sequences.
> For example it can transform this:
>
> strbw2, [x1, 1]
> ldr x0, [x1] # Expensive store forwarding
On 8/9/24 8:58 AM, Manolis Tsamis wrote:
This pass detects cases of expensive store forwarding and tries to avoid them
by reordering the stores and using suitable bit insertion sequences.
For example it can transform this:
[ ... ]
Trying to bootstrap (enabled by default) on 68k:
../../..
This pass detects cases of expensive store forwarding and tries to avoid them
by reordering the stores and using suitable bit insertion sequences.
For example it can transform this:
strbw2, [x1, 1]
ldr x0, [x1] # Expensive store forwarding to larger load.
To:
ldr
