On Sun, Dec 15, 2019 at 03:45:34PM -0700, Jeff Law wrote:
> For x86, patterns which set/clobber the condition codes have explicit
> sets/clobbers of the flags register. As a result the dataflow is
> accurately represented and the optimizers don't really have to do
> anything special. It's no diff
On Sat, 2019-12-14 at 03:55 +0100, Stefan Franke wrote:
> Am 2019-12-13 21:59, schrieb Segher Boessenkool:
> > On Fri, Dec 13, 2019 at 08:55:15PM +0100, Stefan Franke wrote:
> > > Am 2019-12-13 18:58, schrieb Segher Boessenkool:
> > > > On Fri, Dec 13, 2019 at 05:25:41PM +0100, Stefan Franke wrote:
On Fri, 2019-12-13 at 17:25 +0100, Stefan Franke wrote:
> Hi there,
>
> I suggest this patch to allow architectures do substitute cc0_rtx with a
> generated cc register.
>
> Why? If you are using a cc register plus your architecture as many
> instructions which may clobber that cc register, som
Am 2019-12-14 04:03, schrieb Andrew Pinski:
On Fri, Dec 13, 2019 at 6:56 PM Stefan Franke wrote:
Am 2019-12-13 21:59, schrieb Segher Boessenkool:
> On Fri, Dec 13, 2019 at 08:55:15PM +0100, Stefan Franke wrote:
>> Am 2019-12-13 18:58, schrieb Segher Boessenkool:
>> >On Fri, Dec 13, 2019 at 05:
On Fri, Dec 13, 2019 at 6:56 PM Stefan Franke wrote:
>
> Am 2019-12-13 21:59, schrieb Segher Boessenkool:
> > On Fri, Dec 13, 2019 at 08:55:15PM +0100, Stefan Franke wrote:
> >> Am 2019-12-13 18:58, schrieb Segher Boessenkool:
> >> >On Fri, Dec 13, 2019 at 05:25:41PM +0100, Stefan Franke wrote:
>
Am 2019-12-13 21:59, schrieb Segher Boessenkool:
On Fri, Dec 13, 2019 at 08:55:15PM +0100, Stefan Franke wrote:
Am 2019-12-13 18:58, schrieb Segher Boessenkool:
>On Fri, Dec 13, 2019 at 05:25:41PM +0100, Stefan Franke wrote:
>>Why? If you are using a cc register plus your architecture as many
>>
On Fri, Dec 13, 2019 at 08:55:15PM +0100, Stefan Franke wrote:
> Am 2019-12-13 18:58, schrieb Segher Boessenkool:
> >On Fri, Dec 13, 2019 at 05:25:41PM +0100, Stefan Franke wrote:
> >>Why? If you are using a cc register plus your architecture as many
> >>instructions which may clobber that cc regis
Am 2019-12-13 18:58, schrieb Segher Boessenkool:
Hi!
On Fri, Dec 13, 2019 at 05:25:41PM +0100, Stefan Franke wrote:
I suggest this patch to allow architectures do substitute cc0_rtx with
a
generated cc register.
Why? If you are using a cc register plus your architecture as many
instructions w
Hi!
On Fri, Dec 13, 2019 at 05:25:41PM +0100, Stefan Franke wrote:
> I suggest this patch to allow architectures do substitute cc0_rtx with a
> generated cc register.
>
> Why? If you are using a cc register plus your architecture as many
> instructions which may clobber that cc register, some p
