[Bug tree-optimization/49038] [4.5/4.6/4.7 Regression] -ftree-vectorise introduces reads past end of array

[rguenther at suse dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49038

--- Comment #3 from rguenther at suse dot de <rguenther at suse dot de> 2011-05-19 13:05:42 UTC ---
On Thu, 19 May 2011, irar at il dot ibm.com wrote:

> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49038
> 
> Ira Rosen <irar at il dot ibm.com> changed:
> 
>            What    |Removed                     |Added
> ----------------------------------------------------------------------------
>                  CC|                            |irar at il dot ibm.com
> 
> --- Comment #2 from Ira Rosen <irar at il dot ibm.com> 2011-05-19 12:38:32 UTC ---
> Is there a way for the vectorizer to check this? 

No.

> If not, we should probably create a scalar epilogue for last access with gap.

Probably yes.

Richard.