On Wed, 2020-08-26 at 15:58 -0500, Segher Boessenkool wrote:
> On Tue, Aug 25, 2020 at 02:35:51PM -0600, Jeff Law wrote:
> > I've gone back and forth on pre allocation splitting as well as
> > post-allocating
> > splitting and re-allocation. I could argue either side of that discussion
> > --
>
On Tue, Aug 25, 2020 at 02:35:51PM -0600, Jeff Law wrote:
> I've gone back and forth on pre allocation splitting as well as
> post-allocating
> splitting and re-allocation. I could argue either side of that discussion --
If you end up wanting something split it is best to do it early. But if
y
On Mon, 2020-08-10 at 11:11 -0500, Peter Bergner wrote:
> On 7/23/20 3:29 PM, Jeff Law wrote:
> > > > What's driving this change?
> > >
> > > Peter noticed IRA allocates stuff to volatile registers while it is life
> > > through a call, and then LRA has to correct that, not optimal.
> > I can't re
On 7/23/20 3:29 PM, Jeff Law wrote:
>>> What's driving this change?
>>
>> Peter noticed IRA allocates stuff to volatile registers while it is life
>> through a call, and then LRA has to correct that, not optimal.
> I can't recall if IRA or LRA handles the need to save them to the stack, but
> the
On Thu, Jul 23, 2020 at 02:29:00PM -0600, Jeff Law wrote:
> On Thu, 2020-07-23 at 15:19 -0500, Segher Boessenkool wrote:
> > On Thu, Jul 23, 2020 at 01:42:59PM -0600, Jeff Law wrote:
> > > On Thu, 2020-07-23 at 14:25 -0500, Pat Haugen via Gcc-patches wrote:
> > > > Disable -fcaller-saves by default
On Thu, 2020-07-23 at 15:19 -0500, Segher Boessenkool wrote:
> Hi!
>
> On Thu, Jul 23, 2020 at 01:42:59PM -0600, Jeff Law wrote:
> > On Thu, 2020-07-23 at 14:25 -0500, Pat Haugen via Gcc-patches wrote:
> > > Disable -fcaller-saves by default.
> > >
> > > This patch turns off -fcaller-saves by def
Hi!
On Thu, Jul 23, 2020 at 01:42:59PM -0600, Jeff Law wrote:
> On Thu, 2020-07-23 at 14:25 -0500, Pat Haugen via Gcc-patches wrote:
> > Disable -fcaller-saves by default.
> >
> > This patch turns off -fcaller-saves by default so that IRA doesn't try
> > to use volatile regs for pseudos that are
On Thu, 2020-07-23 at 14:25 -0500, Pat Haugen via Gcc-patches wrote:
> Disable -fcaller-saves by default.
>
> This patch turns off -fcaller-saves by default so that IRA doesn't try
> to use volatile regs for pseudos that are live across a call, which
> would then require LRA to save/restore the re
Disable -fcaller-saves by default.
This patch turns off -fcaller-saves by default so that IRA doesn't try
to use volatile regs for pseudos that are live across a call, which
would then require LRA to save/restore the reg around the call.
Bootstrap/regtest on powerpc64le with no new regressions. A
