> On Fri, Sep 20, 2013 at 6:00 AM, Zamyatin, Igor
> wrote:
> >
> > For x86 32-bit is still important due to mobile market so we would like to
> > make some measurements first to see how this new generic model works on 32
> > bits
I assume by mobile market you mean atom CPU these days (not Pent
On Fri, Sep 20, 2013 at 6:00 AM, Zamyatin, Igor wrote:
>
> For x86 32-bit is still important due to mobile market so we would like to
> make some measurements first to see how this new generic model works on 32
> bits
I would expect people compiling code for the mobile market to use an
appropri
>
> I did some experiment with code alignment. I found
> -fno-align-loops -fno-align-functions -fno-align-jumps
> had no negative performance impacts on current
> Intel processors while reducing code sizes by 1-2%.
> Should we use
>
> {&generic_cost, 0, 0, 0, 0, 0},
>
> instead?
Good, revisitin
On Thu, Sep 19, 2013 at 8:38 AM, Jan Hubicka wrote:
>>
>>
>> decide_alg is being called from ix86_expand_movmem, from
>> expand_builtin_memcpy, for the call at line 61 of go-append.c.
>> __builtin_memcpy (n, a.__values, a.__count * element_size);
>>
>> I'm continuing to look.
>
> Indeed it i
>
>
> decide_alg is being called from ix86_expand_movmem, from
> expand_builtin_memcpy, for the call at line 61 of go-append.c.
> __builtin_memcpy (n, a.__values, a.__count * element_size);
>
> I'm continuing to look.
Indeed it is problem of this patch - the issue is that generic64 had
du
On Wed, Sep 18, 2013 at 1:39 PM, Jan Hubicka wrote:
>
> when generic model was introduced, the 32bit only CPUs was still common on the
> market. It would be stupid to tune 64bit code for CPUs that will never run
> it.
> We thus introduced two models - generic32 that was considering needs
> of 32
On Wed, Sep 18, 2013 at 1:39 PM, Jan Hubicka wrote:
> Hi,
> when generic model was introduced, the 32bit only CPUs was still common on the
> market. It would be stupid to tune 64bit code for CPUs that will never run
> it.
> We thus introduced two models - generic32 that was considering needs
> o
