[Bug tree-optimization/48172] [4.5/4.6/4.7 Regression] incorrect vectorization of loop in GCC 4.5.* with -O3

[irar at il dot ibm.com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48172

--- Comment #9 from Ira Rosen <irar at il dot ibm.com> 2011-05-12 11:48:56 UTC 
---
(In reply to comment #8)
> Created attachment 24236 [details]
> patch
> 
> Patch I'm going to test.

So, segment_length = scalar_step * vf * scalar_niters?
I think we don't need vf here.

Also, why not do that only for different steps?

Thanks,
Ira