On Wed, Jan 22, 2014 at 1:20 PM, Bingfeng Mei wrote:
> Hi,
> I noticed there is a regression of 4.8 against ancient 4.5 in vectorization
> on our port. After a bit investigation, I found following code that prefer
> even|odd version instead of lo|hi one. This is obviously the case for AltiVec
>
Thanks, Richard. It is not very clear from documents.
"Signed/Unsigned widening multiplication. The two inputs (operands 1 and 2)
are vectors with N signed/unsigned elements of size S. Multiply the high/low
or even/odd elements of the two vectors, and put the N/2 products of size 2*S
in the outpu
On Fri, Jan 24, 2014 at 6:47 PM, Bingfeng Mei wrote:
> Hi,
> I experienced an issue in our port, which I suspected due to bugs
> in ptr_difference_const & split_address_to_core_and_offset. Basically,
> ptr_difference_const, called by ivopts pass, tries to evaluate
> whether e1 & e2 differ by a con
On Tue, Jan 28, 2014 at 12:08 PM, Bingfeng Mei wrote:
> Thanks, Richard. It is not very clear from documents.
>
> "Signed/Unsigned widening multiplication. The two inputs (operands 1 and 2)
> are vectors with N signed/unsigned elements of size S. Multiply the high/low
> or even/odd elements of the
I checked vectorization code, it seems that only relevant place
vec_widen_mult_even/odd & vec_widen_mult_lo/hi are generated is in
supportable_widening_operation. One of these pairs is selected, with priority
given to vec_widen_mult_even/odd if it is a reduction loop. However, lo/hi pair
seems
On Sun, Jan 26, 2014 at 11:12 AM, Richard Sandiford
wrote:
> [adding libstdc++@]
>
> Bill Schmidt writes:
>> It was recently pointed out to me that our new powerpc64le-linux-gnu
>> target does not yet have a corresponding directory in libstdc
>> ++-v3/config/abi/post/ to hold a baseline_symbols.t
2014/1/22 Jakub Jelinek :
> This can print 3 (if doing host fallback or device shares address space
> with host), or 2 (otherwise). It shouldn't print 1 ever, and yes,
> the target update is then well defined. All variables from omp declare
> target are allocated on the device sometime before
> t
On 01/27/2014 10:51 PM, Senthil Kumar Selvaraj wrote:
> This is on trunk - I was under the impression that it is always trunk,
> unless otherwise stated?
>
> getpid doesn't really make sense for bare metal targets, I would think?
>
> Regards
> Senthil
>
> On Mon, Jan 27, 2014 at 01:04:48PM +
On 01/28/14 11:14, Janis Johnson wrote:
The testcase in the PR had a call to printf. The modified test doesn't call
printf, and doesn't declare getpid. I assume that getpid is called simply
to have an external call, but there must be something that could be used
instead that is available for an
Ping? Or do I need to repost on the patches list?
http://gcc.gnu.org/ml/gcc/2014-01/msg00130.html
On Tue, Jan 28, 2014 at 09:54:09PM +0400, Ilya Verbin wrote:
> Yes, when G is global variable marked with 'declare target', everything works
> fine. But this testcase crashes at runtime in GOMP_target_update:
>
> int main ()
> {
> int G = 2;
> #pragma omp target update to(G)
> G = 3;
> in
On Tue, 28 Jan 2014, DJ Delorie wrote:
> Ping? Or do I need to repost on the patches list?
Repost on the patches list (with self-contained write-up, rationale for
choices made, etc.) at the start of stage 1 for 4.10/5.0, I suggest (this
clearly isn't stage 3 material).
--
Joseph S. Myers
jos
> Repost on the patches list (with self-contained write-up, rationale for
> choices made, etc.) at the start of stage 1 for 4.10/5.0,
Ok.
> I suggest (this clearly isn't stage 3 material).
Yup. Would be nice to back port it to 4.9 later, but... understood.
> For x86 Hurd, GCC has been specifying »-dynamic-linker /lib/ld.so« in
> LINK_SPEC since forever (1995, or earlier), and Debian glibc has had the
> following since forever (2002, or earlier):
>
> ifeq ($(DEB_HOST_GNU_SYSTEM),gnu)
> # Why doesn't the glibc makefile install this?
>
I am building a GCC plugin and am trying to create a call to a constructor for
a global variable. The class is declared in a .cpp file and I have global
instance of the class declared in the file as well. The class declaration for
the global instance I am trying to create follows:
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