On Tue, Nov 19, 2013 at 09:50:56AM +0100, Richard Biener wrote:
> > this patch fixes two issues with memcpy testcase - silences warning and
> > updates
> > the template as suggested by Uros in the PR. The testcase still fails on
> > i386.
> > This is because we end up with:
> > ;; Function t (t,
On Tue, 19 Nov 2013, Jan Hubicka wrote:
> Hi,
> this patch fixes two issues with memcpy testcase - silences warning and
> updates
> the template as suggested by Uros in the PR. The testcase still fails on
> i386.
> This is because we end up with:
> ;; Function t (t, funcdef_no=0, decl_uid=1763,
Hi,
this patch fixes two issues with memcpy testcase - silences warning and updates
the template as suggested by Uros in the PR. The testcase still fails on i386.
This is because we end up with:
;; Function t (t, funcdef_no=0, decl_uid=1763, symbol_order=2)
t (unsigned int c)
{
void * b.0_4;
On Mon, Nov 18, 2013 at 9:16 AM, H.J. Lu wrote:
> On Mon, Nov 18, 2013 at 6:19 AM, H.J. Lu wrote:
>> On Sun, Nov 17, 2013 at 3:38 PM, Jan Hubicka wrote:
>>> Hi,
>>> this is version I comitted. It also adds a testcase and enables the support
>>> in i386 backend.
>>>
>>> Honza
>>>
>>> * d
>
> I opened:
>
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59175
Thanks,
seems I mixed up the testcase file. Will fix that soon.
Honza
>
> --
> H.J.
On Mon, Nov 18, 2013 at 6:19 AM, H.J. Lu wrote:
> On Sun, Nov 17, 2013 at 3:38 PM, Jan Hubicka wrote:
>> Hi,
>> this is version I comitted. It also adds a testcase and enables the support
>> in i386 backend.
>>
>> Honza
>>
>> * doc/md.texi (setmem, movstr): Update documentation.
>>
On Sun, Nov 17, 2013 at 3:38 PM, Jan Hubicka wrote:
> Hi,
> this is version I comitted. It also adds a testcase and enables the support
> in i386 backend.
>
> Honza
>
> * doc/md.texi (setmem, movstr): Update documentation.
> * builtins.c (determine_block_size): New function.
>
Hi,
this is version I comitted. It also adds a testcase and enables the support in
i386 backend.
Honza
* doc/md.texi (setmem, movstr): Update documentation.
* builtins.c (determine_block_size): New function.
(expand_builtin_memcpy): Use it and pass it to
emit_bloc
On Fri, 15 Nov 2013, Jan Hubicka wrote:
> > Hi,
> > this patch makes it possible to access value range info from setmem/movstr
> > that
> > I plan to use in i386 memcpy/memset expansion code. It is all quite
> > straighforward except that I need to deal with cases where max size does not
> > fit
> Hi,
> this patch makes it possible to access value range info from setmem/movstr
> that
> I plan to use in i386 memcpy/memset expansion code. It is all quite
> straighforward except that I need to deal with cases where max size does not
> fit in HOST_WIDE_INT where I use maximal value as a mark
> Hi Jan,
>
> > I also think the misaligned move trick can/should be performed by
> > move_by_pieces and we ought to consider sane use of SSE - current
> > vector_loop
> > with unrolling factor of 4 seems bit extreme. At least buldozer is happy
> > with
> > 2 and I would expect SSE moves to be
Hi Jan,
> I also think the misaligned move trick can/should be performed by
> move_by_pieces and we ought to consider sane use of SSE - current vector_loop
> with unrolling factor of 4 seems bit extreme. At least buldozer is happy with
> 2 and I would expect SSE moves to be especially useful for
> > We now produce:
> > movqb(%rip), %rsi
> > movqa(%rip), %rcx
> > movq(%rsi), %rax <- first 8 bytes are moved
> > leaq8(%rcx), %rdi
> > andq$-8, %rdi <- dest is aligned
> > movq%rax, (%rcx)
> > movq132(%rsi), %r
On Sat, Sep 28, 2013 at 3:05 PM, Jan Hubicka wrote:
>> > Nice extension. Test cases would be great to have.
>> Fore those you need i386 changes to actually use the info. I will post that
>> after some cleanup and additional testing.
>
> Hi,
> since I already caught your attention, here is the tar
> > Nice extension. Test cases would be great to have.
> Fore those you need i386 changes to actually use the info. I will post that
> after some cleanup and additional testing.
Hi,
since I already caught your attention, here is the target specific part for
comments.
this patch implements memcpy
> Nice extension. Test cases would be great to have.
Fore those you need i386 changes to actually use the info. I will post that
after some cleanup and additional testing.
Honza
Nice extension. Test cases would be great to have.
thanks,
David
On Fri, Sep 27, 2013 at 7:50 AM, Jan Hubicka wrote:
> Hi,
> this patch makes it possible to access value range info from setmem/movstr
> that
> I plan to use in i386 memcpy/memset expansion code. It is all quite
> straighforward
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