Convert ARM optimizations to GNU syntax

Convert ARM optimizations to GNU syntax

The ARM optimizations included in OPUS 1.1 is written in ARM's RVCT syntax, and we need to convert it to GNU syntax. There's a script for the actual conversion, arm2gnu.pl, added by this CL.

The script will be used in opus.gyp to generate files of the format we need.

BUG=
R=sergeyu@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=256783

[tlegrand1, 2014-02-11 15:42:17]

Hi Sergey,

This is a CL I realized needs to be committed before Enabling ARM optimizations
for Opus, https://codereview.chromium.org/150103006/.

The ARM optimizations is in a different format than what we need, so we have
converted them offline, and uploaded here, together with the tools.

PTAL, thanks.

[Sergey Ulanov, 2014-02-13 20:27:13]

LGTM, but see my comment - arm2gnu.pl needs a license header.

https://codereview.chromium.org/159803003/diff/1/celt/arm/arm2gnu.pl
File celt/arm/arm2gnu.pl (right):

https://codereview.chromium.org/159803003/diff/1/celt/arm/arm2gnu.pl#newcode1
celt/arm/arm2gnu.pl:1: #!/usr/bin/perl
Is this part of Opus repo? Does it need a license header? checklicenses.py may
not like this file.

[tlegrand1, 2014-02-14 13:35:26]

On 2014/02/13 20:27:13, Sergey Ulanov wrote:
> LGTM, but see my comment - arm2gnu.pl needs a license header.
> 
> https://codereview.chromium.org/159803003/diff/1/celt/arm/arm2gnu.pl
> File celt/arm/arm2gnu.pl (right):
> 
> https://codereview.chromium.org/159803003/diff/1/celt/arm/arm2gnu.pl#newcode1
> celt/arm/arm2gnu.pl:1: #!/usr/bin/perl
> Is this part of Opus repo? Does it need a license header? checklicenses.py may
> not like this file.

Good point, thanks!

I will check if it passes checklicenses.py, and if not, upload a fix before
committing.

[tlegrand1, 2014-03-10 11:40:14]

Hi,

I have updated the file to include license header. File is from commit
718b10c6282c3ef9d8052e22aee5e853700c2529 from official Opus repository:
http://git.xiph.org/?p=opus.git;a=summary

The file passes checklicensed.py.

https://codereview.chromium.org/159803003/diff/1/celt/arm/arm2gnu.pl
File celt/arm/arm2gnu.pl (right):

https://codereview.chromium.org/159803003/diff/1/celt/arm/arm2gnu.pl#newcode1
celt/arm/arm2gnu.pl:1: #!/usr/bin/perl
On 2014/02/13 20:27:13, Sergey Ulanov wrote:
> Is this part of Opus repo? Does it need a license header? checklicenses.py may
> not like this file.

Done.

https://codereview.chromium.org/159803003/diff/100001/celt/arm/arm2gnu.pl
File celt/arm/arm2gnu.pl (right):

https://codereview.chromium.org/159803003/diff/100001/celt/arm/arm2gnu.pl#new...
celt/arm/arm2gnu.pl:28: my $nxstack;
The latest version of this file from opus-codec.org has some updates. All
following changes are due to updates of the file.

[Sergey Ulanov, 2014-03-11 00:55:39]

lgtm

[tlegrand1, 2014-03-13 10:08:52]

Committed patchset #2 manually as r256783 (presubmit successful).