RE: [ACTIVITY] 4-8 Feb 2013

2013-02-10 Thread Kumar, Venkataramanan
Hi Andrew,

I have not started on this task yet. 

As you know the backpack ground for this task is 
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54742 ( Coremark bench)

Thank you for the pointers and people who I can contact. I will take a look and 
get back to you on the jump threading via VRP. 

Regards,
Venkat.



-Original Message-
From: linaro-toolchain-boun...@lists.linaro.org 
[mailto:linaro-toolchain-boun...@lists.linaro.org] On Behalf Of Pinski, Andrew
Sent: Sunday, February 10, 2013 1:24 PM
To: Venkataramanan Kumar; linaro-toolchain@lists.linaro.org
Subject: RE: [ACTIVITY] 4-8 Feb 2013

>* Start analysis on jump threading in GCC.

What kind of analysis are you going to do?  I have some helpful hints dealing 
with the jump threading in VRP.  Really DOM should be removed fully as most if 
not all the other optimizers already do its job.  Also you should do this 
analysis on the GCC list right away because Jeff Law and Steven Bosscher can 
help you understand why things are done currently the way they are done.  

You will gain more optimizations improving VRP rather than improving jump 
threading in general.

Thanks,
Andrew Pinski

From: linaro-toolchain-boun...@lists.linaro.org 
[linaro-toolchain-boun...@lists.linaro.org] on behalf of Venkataramanan Kumar 
[venkataramanan.ku...@linaro.org]
Sent: Saturday, February 09, 2013 11:43 PM
To: linaro-toolchain@lists.linaro.org
Subject: [ACTIVITY] 4-8 Feb 2013

== Progress ==
* Implementing GC sections support in bintuils
  Looking at aarch64 relocations to consider while sweeping.

* Cbuild experiments to test gcc svn aarch64 4.7 branch.
  Connection problems to the cbuild machines are solved now.
  Thanks to Matt. Spawned the build.

Misc
--
* Attend tool chain weekly meet, and stand up call
*  Had a look at one x86_64 related patch that gone into GCC trunk.

== Next week ==
* Continue Implementing GC sections support in binutils.
* Start analysis on jump threading in GCC.

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Re: aarch64 does not run

2013-02-10 Thread Mans Rullgard
On 10 February 2013 04:36, Wink Saville  wrote:
> I downloaded the aarch64 binaries to  a ubuntu machine:
>
>   wink@ssi-primary:~$ uname -a
>   Linux ssi-primary 3.5.0-21-generic #32-Ubuntu SMP Tue Dec 11 18:51:59 UTC
> 2012 x86_64 x86_64 x86_64 GNU/Linux
>
>
> And when I try to run gcc-4.7.3:
>
>   wink@ssi-primary:~$ ls -al
> ~/aarch64-toolchain/gcc-linaro-aarch64-linux-gnu-4.7+bzr115029-20121015+bzr2506_linux/bin/aarch64-linux-gnu-gcc-4.7.3
>   -rwxr-xr-x 1 wink wink 553068 Oct 18 14:21
> /home/wink/aarch64-toolchain/gcc-linaro-aarch64-linux-gnu-4.7+bzr115029-20121015+bzr2506_linux/bin/aarch64-linux-gnu-gcc-4.7.3
>
> I get a file not found:
>
>   wink@ssi-primary:~$ strace
> /home/wink/aarch64-toolchain/gcc-linaro-aarch64-linux-gnu-4.7+bzr115029-20121015+bzr2506_linux/bin/aarch64-linux-gnu-gcc-4.7.3
> -v
>
> execve("/home/wink/aarch64-toolchain/gcc-linaro-aarch64-linux-gnu-4.7+bzr115029-20121015+bzr2506_linux/bin/aarch64-linux-gnu-gcc-4.7.3",
> ["/home/wink/aarch64-toolchain/gcc"..., "-v"], [/* 19 vars */]) =   -1
> ENOENT (No such file or directory)

This error usually means the executable is requesting a non-existent
"interpreter" (dynamic loader).  You need to install the 32-bit compat
lib package.  I don't remember what it's called on ubuntu, probably
ia32-libs or similar.

-- 
Mans Rullgard / mru

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gcc-4.7 fsf merge has some issues

2013-02-10 Thread Matthias Klose
looking at
http://bazaar.launchpad.net/~linaro-toolchain-dev/gcc-linaro/4.7/revision/115051

the first chunk of gcc/Makefile.in was wrongly merged. The first "# Multiarch
support" should be removed. Same for gcc/configure.ac. gcc/configure needs to be
regenerated.

Thanks, Matthias

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Re: gcc-4.7 fsf merge has some issues

2013-02-10 Thread Yvan Roux
Thanks Matthias for catching this, I pushed a fix and the merge
request is ongoing.

Yvan

On 10 February 2013 15:56, Matthias Klose  wrote:
> looking at
> http://bazaar.launchpad.net/~linaro-toolchain-dev/gcc-linaro/4.7/revision/115051
>
> the first chunk of gcc/Makefile.in was wrongly merged. The first "# Multiarch
> support" should be removed. Same for gcc/configure.ac. gcc/configure needs to 
> be
> regenerated.
>
> Thanks, Matthias

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