== Progress ==
* Turn off 64-bits bitops in Neon: initial implementation under
benchmarking.
Currently it modifies the handling of: add, sub, and, or, xor, shifts,
not. In some case the generated code is quite larger, so it will careful
benchmarking.
* Started looking at "disable peeling" blue-print. Reading GCC source code
to get more familiar with that area.
* Internal support
== Blueprints ==
Initial Current Actual
initial-aarch64-backport 31 Oct 2012 30 Nov 2012
aarch64-baremetal-testing 31 Oct 2012 30 Nov 2012
fix-gcc-multiarch-testing 31 Dec 2012 31 Dec 2012
backport-fma-intrinsic 31 Dec 2012 31 Dec 2012
fused-multiply-add-support 31 Dec 2012 31 Dec 2012
gcc-investigate-lra-for-arm 31 Dec 2012 31 Dec 2012
== Progress ==
* Admin
* Interviewing
* Investigate patches for literal pool layout bug
* Took longer than expected as the 'simple' fix is wrong due to GCC not
knowing how large instructions actually are.
* Patch posted upstream
* Post triplet backport patches upstream
* Other bug issues
* Including an issue running SPEC2K on x86 with recent trunk
== Next Week ==
* Run HOT/COLD partitioning benchmarks
* Analyse ARM results
* On x86_64 to see what the actual benefit we could get
* initial-aarch64-backport & aarch64-baremetal-testing
* Finish documentation
* gcc-investigate-lra-for-arm
* Analyse benchmarks
* fix-gcc-multiarch-testing
* Come up with strawman proposal for updating testsuite to handle
testing with varying command-line options.
== Future ==
* backport-fma-intrinsic & fused-multiply-add-support
* Backport patches once fix-gcc-multiarch-testing has been done.
--
Matthew Gretton-Dann
Linaro Toolchain Working Group
matthew.gretton-dann(a)linaro.org
Hi,
I try ARM, MIPS, PowerPC and X86 on povray benchmark. No one can
shrink-wrap function Ray_In_Bound.
Here is:
bool Ray_In_Bound (RAY *Ray, OBJECT *Bounding_Object)
{
...
for (Bound = Bounding_Object; Bound != NULL; Bound = Bound->Sibling)
{...}
return (true);
}
For ARM O2/O3, "Bound" is allocated to "r6" during ira. So there is copy
r6 = r1 before
testing Bound != NULL
The copy (using r6) blocks the shrink-wrap optimization since r6
should be saved. Need enhance shrink-wrap to handle this case.
Overall, for povray benchmark,
54 functions are shrink-wrapped for ARM;
59 functions are shrink-wrapped for X86;
25 functions are shrink-wrapped for MIPS;
26 functions are shrink-wrapped for PowerPC.
Thanks!
-Zhenqiang
On 15 November 2012 01:58, 남관우 <kw46.nam(a)samsung.com> wrote:
>
> Hi,
>
>
>
> As your guide, i tried to build again.
>
>
>
> without : -mapcs -fno-common -fstack-protector --param==ssp=buffer-size=4
>
>
> and -fPIC instead of -fpic
>
>
>
> But it is failed with same the message. (/usr/lib/libnfc-common-lib.so.1: unexpected reloc type 0x03)
>
>
>
> Thank you,
>
> Kwanwoo Nam.
>
>
>
> ------- Original Message -------
>
> Sender : 남관우<kw46.nam(a)samsung.com> S4(선임)/선임/SLP개발그룹(무선)/삼성전자
>
> Date : 2012-11-14 21:45 (GMT+09:00)
>
> Title : Re: Re: Re: unexpected reloc type 0x03 error with gcc-4.6.4 (2012.10 version)
>
>
>
> Hi,
>
>
>
> Here is our LDFLAGS.
>
> -Wl,--rpath=/usr/lib -Wl,--as-needed
>
>
>
> And i try to build with your guide.
>
> without : -mapcs -fno-common
> and -fPIC instead of -fpic
>
>
>
> But it is failed with same the message. (/usr/lib/libnfc-common-lib.so.1: unexpected reloc type 0x03)
Ta. I'm afraid we don't have enough information to solve this.
Could you please send a full build log and we can go from there.
gzipped on a public server is best.
-- Michael
== Blueprints ==
Initial Current Actual
initial-aarch64-backport 31 Oct 2012 30 Nov 2012
aarch64-baremetal-testing 31 Oct 2012 30 Nov 2012
fix-gcc-multiarch-testing 31 Dec 2012 31 Dec 2012
backport-fma-intrinsic 31 Dec 2012 31 Dec 2012
fused-multiply-add-support 31 Dec 2012 31 Dec 2012
gcc-investigate-lra-for-arm 31 Dec 2012 31 Dec 2012
== Progress ==
* Admin
* Interviewing
* Hand over prep with Michael
* Release Week
* Made 2012.11 releases of gcc-linaro 4.6 and 4.7.
* LEG interations:
* Investigated CILK+ and how much work to port to AArch64.
* HOT/COLD partitioning
* Ran benchmarks on ARM
* LRA
* Ran x86-64 benchmarks
== Next Week ==
* Investigate patches for literal pool layout bug
* Post triplet backport patches upstream
* Run HOT/COLD partitioning benchmarks
* Analyse ARM results
* On x86_64 to see what the actual benefit we could get
* initial-aarch64-backport & aarch64-baremetal-testing
* Finish documentation
* gcc-investigate-lra-for-arm
* Analyse benchmarks
* fix-gcc-multiarch-testing
* Come up with strawman proposal for updating testsuite to handle
testing with varying command-line options.
== Future ==
* backport-fma-intrinsic & fused-multiply-add-support
* Backport patches once fix-gcc-multiarch-testing has been done.
--
Matthew Gretton-Dann
Linaro Toolchain Working Group
matthew.gretton-dann(a)linaro.org
== Progress ==
* Infrastructure:
- Managed to have my laptop re-installed by IT with a native Ubuntu 12.04,
(as a beta tester).
- Re-setup my working environment.
* GCC release process familiarization.
* Boehm GC AArch64 support:
- Resume libatomic-ops work.
* Some internal support
== Next ==
* Continue on the Boehm GC AArch64 support.
== Progress ==
* Started working on "Turn off 64 bits Bitops in Neon in GCC" blueprint.
* branch review for aarch64-4.7 merge.
A lot of time wasted due network instability making it difficult to
checkout a GCC branch from launchpad/bzr.
* Internal support for infrastructure problems.
* Resumed discussions with our internal IT and Christian Bejram to try to
decrease our constraints.
