[LLVMdev] [PATCH] parallel loop awareness to the LoopVectorizer

Tobias Grosser tobias at grosser.es
Mon Jan 28 04:58:20 PST 2013

On 01/28/2013 12:58 PM, Pekka Jääskeläinen wrote:
> Hi,
> Attached is a patch which uses a simple "parallel_loop" metadata attached
> to the loop branch instruction in the loop latch for skipping
> cross-iteration
> memory dependency checking in the LoopVectorizer. This was briefly
> discussed
> in the email thread "LoopVectorizer in OpenCL C work group
> autovectorization".

Can you provide a test case?

> It also converts the "min iteration count to vectorize" to a parameter so
> this can be controlled from the command line.

This seems to be a separate patch?


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