Quoting Richard Henderson :
Truly variable permutation is something that's only supported by ppc
and spu.
SH64 also has variable permutation. 16 bit elements within its 64 bit
vector size can be permuted.
HOWEVER! Most of the useful permutations that I can think of for the
optimizers to ge
What is this hook supposed to do? There is no description of its arguments.
What is the theory of operation of permute within the vectorizer? Do
you actually need variable permute, or would constants be ok?
I'm contemplating adding a tree- and gimple-level VEC_PERMUTE_EXPR of
the form:
Sebastian Pop writes:
> I haven't looked at the gccgo branch yet, but have quickly browsed
> over the material at golang.org, and I found no document describing,
> at a high level, the design of the compiler(s) and the runtime of go.
As far as I know there is no such document.
First let me say
Hi Ian,
On Tue, Nov 10, 2009 at 17:21, Ian Lance Taylor wrote:
> For the last year and a half I've been working on a gcc frontend for
> Go, a new experimental systems programming language designed by a
> small group at Google. We've just open sourced it. You can read more
> about it at http://g
2009/11/16 Mohsen Pahlevanzadeh:
> Dear all,
> I wrote a program & when i monitor it with "top" command, i see an
> incremental load average.When i see with a profiler program same oprof,i
> saw function of my thread has 66% activity.
> I read many body of that function,but i have got 1 result: i
Ian Bolton wrote:
> Ian Bolton wrote:
> > Vladimir Makarov wrote:
> > > Ian Bolton wrote:
> > > > Yesterday, I wrote:
> > > >
> > > >> BTW, today I have achieved some good results with existing IRA
> by
> > > doing
> > > >> the following:
> > > >>
> > > >> 1) Changed the REG_ALLOC_ORDER so that TOP
Dear all,
I wrote a program & when i monitor it with "top" command, i see an
incremental load average.When i see with a profiler program same oprof,i
saw function of my thread has 66% activity.
I read many body of that function,but i have got 1 result: i didn't use
thread as safely.
Do you know on
