Re: [gnu-linaro-tools] Thumb2 size optimization report

2010-09-16 Thread Yao Qi
On Wed, Sep 15, 2010 at 09:49:34PM +0800, Yao Qi wrote: > * Results I got this GCC PR by accident today. PR16996 [meta-bug] code size improvements http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16996 We can get most of code size bugs through it, and most of these bugs are about ARM. -- Yao Qi Code

binutils testsuite Thumb-2 coverage

2010-09-16 Thread Chung-Lin Tang
Hi, about the status of binutils testsuite Thumb coverage (CS204 in the workplan), I have filed two Launchpad bugs: #640263: Testsuite coverage: Thumb-2 VFP/NEON encodings https://bugs.launchpad.net/binutils-linaro/+bug/640263 #640272: Testsuite coverage: Thumb relocations https://bugs.launchpad

RE: Linaro GCC 4.4 and 4.5 2010.09 released

2010-09-16 Thread Guillaume Letellier
> GLIBC a mechanism for picking the best routines to use based on the > CPU capabilities. This means that GLIBC can include A8 and A9 > versions both with and without NEON, Ubuntu can ship all of these > versions, and the dynamic linker can choose the best one based on the > chip it is running on

Re: binutils testsuite Thumb-2 coverage

2010-09-16 Thread Andrew Stubbs
On 16/09/10 09:23, Chung-Lin Tang wrote: > Hi, > about the status of binutils testsuite Thumb coverage (CS204 in the > workplan), I have filed two Launchpad bugs: Thanks Chung-Lin. :) Andrew ___ linaro-toolchain mailing list linaro-toolchain@lists.lina

Re: Linaro GCC 4.4 and 4.5 2010.09 released

2010-09-16 Thread Loïc Minier
On Wed, Sep 15, 2010, Michael Hope wrote: > GLIBC a mechanism for picking the best routines to use based on the > CPU capabilities. This means that GLIBC can include A8 and A9 > versions both with and without NEON, Ubuntu can ship all of these > versions, and the dynamic linker can choose the best

Re: Linaro GCC 4.4 and 4.5 2010.09 released

2010-09-16 Thread Dave Martin
Hi, On Thu, Sep 16, 2010 at 11:43 AM, Loïc Minier wrote: [...] >  Are you sure we have an auxv entry for a8 versus a9?  In any case, I >  doubt it's considered for glibc hwcaps right now as this requires >  explicit flagging and the list of ARM flags is quite short. Currently, I believe this i

Re: Thumb2 code size improvements

2010-09-16 Thread Dave Martin
It would be interesting if we could get a good, representative set of comparative benchmarks for the size and performance impact of -Os. I did a bit of investigation here: https://wiki.linaro.org/Platform/Foundations/OptimiseForSize (though with just a few packages and only one benchmark, it's n

State of cross compiler packages

2010-09-16 Thread Marcin Juszkiewicz
I think that it is easier to describe situation in email then on irc. Currently there are 4 packages related to cross compilation support: - armel-cross-toolchain-base (a-c-t-base in short) - gcc-4.4-armel-cross - gcc-4.5-armel-cross - gcc-defaults-armel-cross Each of them got into archive but

Re: State of cross compiler packages

2010-09-16 Thread Steve Langasek
Hi Marcin, Thanks for whipping these packages into shape! On Thu, Sep 16, 2010 at 06:19:28PM +0200, Marcin Juszkiewicz wrote: > 1. a-c-t-base is at 1.47 in archive and was built from gcc-4.5-source >4.5.1-6ubuntu1 version. This package is used to bootstrap armel cross >toolchain and gener

Re: GCC PRE patch; apply or not?

2010-09-16 Thread Steven Bosscher
xf. http://lists.linaro.org/pipermail/linaro-toolchain/2010-August/69.html > It is not upstreamable due to copyright issues, but we have a policy > that we can keep such patches, if we wish. I wrote this patch. If I am the copyright issue, then there is no issue. I have a copyright assignmen

Re: Thumb2 code size improvements

2010-09-16 Thread Michael Hope
It's only part of the puzzle, but I run speed benchmarks as part of the continious build: http://ex.seabright.co.nz/helpers/buildlog http://ex.seabright.co.nz/helpers/benchcompare http://ex.seabright.co.nz/build/gcc-linaro-4.5-2010.09-1/logs/armv7l-maverick-cbuild4-pavo4/pybench-test.txt I've