llvm dev - Dec 2013 - [LLVMdev] Need a loop example requiring a runtime memory check while vectorizing

Hello,

I'm checking the code of the loop vectorizer pass and specially on the
'LoopVectorizationLegality', 'CanVectorizeMemroy()' .

I would really appreciate if you can give me a C code example for a loop
where the Vectorization is possible but we need a runtime memory check.

 

Thanks in advance

Sara Elshobaky

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On 27.12.2013, at 15:18, Sara Elshobaky <sara.elshobaky at gmail.com>
wrote:
> Hello,
> I’m checking the code of the loop vectorizer pass and specially on the
‘LoopVectorizationLegality’, ‘CanVectorizeMemroy()’ .
> I would really appreciate if you can give me a C code example for a loop
where the Vectorization is possible but we need a runtime memory check.
http://llvm.org/docs/Vectorizers.html#runtime-checks-of-pointers has an example.

- Ben