[LLVMdev] Vectorizing global struct pointers

[Nadav Rotem]

On Feb 5, 2013, at 9:22 AM, Hal Finkel <hfinkel at anl.gov> wrote:

> I think that the potential for overlap is indeed there, but don't we already insert runtime overlap checks as necessary? This seems like it would just be another such case.

We insert runtime overlap checks only for unidentified objects. The problem here is that the vectorizer thinks that A,B,C are all pointers to the same array, so it gives up.  If A,B,C were different arrays then it could have used runtime checks.    
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