* Richard Biener:
> 'pure' makes it pure but there doesn't seem to be a way to make it const?
Does Fortran support setting the rounding mode?
In C, sin is not const because it depends on the current rounding
mode.
On Fri, Jun 15, 2018 at 9:59 AM Florian Weimer wrote:
>
> * Richard Biener:
>
> > 'pure' makes it pure but there doesn't seem to be a way to make it const?
>
> Does Fortran support setting the rounding mode?
>
> In C, sin is not const because it depends on the current rounding
> mode.
It is (well
On 15/06/18 08:59, Florian Weimer wrote:
* Richard Biener:
'pure' makes it pure but there doesn't seem to be a way to make it const?
Does Fortran support setting the rounding mode?
yes, but vec math is only enabled with -ffast-math (so it can
assume -fno-rounding-math)
In C, sin is not c
On Fri, Jun 15, 2018 at 10:39 AM Szabolcs Nagy wrote:
>
> On 15/06/18 08:59, Florian Weimer wrote:
> > * Richard Biener:
> >
> >> 'pure' makes it pure but there doesn't seem to be a way to make it const?
> >
> > Does Fortran support setting the rounding mode?
> >
>
> yes, but vec math is only enab
* Richard Biener:
> That said, good to see some glibc folks jump in on this thread.
> I'd like to see glibc provide a fortran intrinsic header advertising
> the libmvec routines it has. We probably do need some gfortran
> adjustments here but I think that glibc advertising is better than
> hard-c
On Fri, Jun 15, 2018 at 11:08 AM Florian Weimer wrote:
>
> * Richard Biener:
>
> > That said, good to see some glibc folks jump in on this thread.
> > I'd like to see glibc provide a fortran intrinsic header advertising
> > the libmvec routines it has. We probably do need some gfortran
> > adjust
Martin wrote:
> Keep in mind that when discussing FP benchmarks, the used math library
> can be (almost) as important as the compiler. In the case of 481.wrf,
> we found that the GCC 8 + glibc 2.26 (so the "out-of-the box" GNU)
> performance is about 70% of ICC's. When we just linked against AMD
Hi,
I'm in the process of changing the vectorizer to consider all
vector sizes as advertised by targetm.autovectorize_vector_sizes
and to decide which one to use based on its cost model.
I expect that to make sense for example when choosing between
AVX128 and AVX256 since the latter may have pe
>
> Hi,
>
> I'm in the process of changing the vectorizer to consider all
> vector sizes as advertised by targetm.autovectorize_vector_sizes
> and to decide which one to use based on its cost model.
>
> I expect that to make sense for example when choosing between
> AVX128 and AVX256 since the l
On Fri, 15 Jun 2018, Jan Hubicka wrote:
> >
> > Hi,
> >
> > I'm in the process of changing the vectorizer to consider all
> > vector sizes as advertised by targetm.autovectorize_vector_sizes
> > and to decide which one to use based on its cost model.
> >
> > I expect that to make sense for exam
On 15/06/18 12:48, Richard Biener wrote:
>
> Hi,
>
> I'm in the process of changing the vectorizer to consider all
> vector sizes as advertised by targetm.autovectorize_vector_sizes
> and to decide which one to use based on its cost model.
>
> I expect that to make sense for example when choosin
On 06/15/2018 05:39 AM, Wilco Dijkstra wrote:
> Martin wrote:
>
>> Keep in mind that when discussing FP benchmarks, the used math library
>> can be (almost) as important as the compiler. In the case of 481.wrf,
>> we found that the GCC 8 + glibc 2.26 (so the "out-of-the box" GNU)
>> performance i
On Fri, 15 Jun 2018, Jeff Law wrote:
> And resolution on -fno-math-errno as the default. Setting errno can be
> more expensive than people realize.
I don't think I saw any version of the -fno-math-errno patch proposal that
included the testsuite updates I'd expect. Certainly
gcc.dg/torture/pr
Hello all, I have been figuring out to work on some project. So while
searching I found GCC Plugin API project quite interesting.
So, please can I get some more information and links about gcc Plugin API
project.
Can anyone help me please.
Shubham Narlawar wrote on 06/15/2018 08:01 PM:
Hello all, I have been figuring out to work on some project. So while
searching I found GCC Plugin API project quite interesting.
So, please can I get some more information and links about gcc Plugin API
project.
Can anyone help me please.
Here's a
Hi Richard,
First and foremost we need a syntax that actually works for the
Fortran frontend and a way to automatically include this special
header / module.
I can imagine parsing the relevant headers while compiling gfortran
and generating C code from it, which could then be #included in the
On Fri, 15 Jun 2018, Thomas Koenig wrote:
> Hi Richard,
>
> > First and foremost we need a syntax that actually works for the
> > Fortran frontend and a way to automatically include this special
> > header / module.
>
> I can imagine parsing the relevant headers while compiling gfortran
> and ge
Snapshot gcc-8-20180615 is now available on
ftp://gcc.gnu.org/pub/gcc/snapshots/8-20180615/
and on various mirrors, see http://gcc.gnu.org/mirrors.html for details.
This snapshot has been generated from the GCC 8 SVN branch
with the following options: svn://gcc.gnu.org/svn/gcc/branches/gcc-8
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