autovectorization questions (fwd)

autovectorization questions (fwd)

[Thomas Yeh]

Hi All,

  I am trying to use the latest autovectorization gcc code to generate
functionally correct SSE instructions, and I have the following questions:

  Where is the latest stable gcc version with autovector? (is this 4.1.0?)
and where is the latest development code for this? (off of the SVN?)

  Initially, I want to use code that will generate functional code for my
application. After I familiarize myself with the existing code, I plan to
contribute to this work.

thx
Tom Yeh

RE: autovectorization questions (fwd)

[Ryan Mansfield]

>   Where is the latest stable gcc version with autovector? (is this 4.1.0?)
>   and where is the latest development code for this? (off of the SVN?)


gcc 4.1.0 is the newest release, so you can see what auto-vectorization
enhancements are available in gcc 4.1 release notes:

http://gcc.gnu.org/gcc-4.1/changes.html

AFAIK, most of the auto-vectorization work is being done on the
autovect-branch and is being regularly merged in the mainline.

http://gcc.gnu.org/projects/tree-ssa/vectorization.html

Also, have a look at the gcc 4.2 projects on wiki.

http://gcc.gnu.org/wiki/GCC%204.2%20Projects

Regards,

Ryan Mansfield