[LLVMdev] LLVM IR vectorized with opt but not through the API

[Matthieu Dubet]

Hi,

I have a simple LLVM code which loop over an array and do a simple
calculation, the bytecode is here : https://gist.github.com/maattd/7322927

This code is correctly vectorized with LLVM opt 3.3, however I can't get it
to vectorize with call through the API.

Is there a way to debug the LLVM vectorizer pass with the API ?

Is there a way to just apply the exact same optimization passes as the opt
tool ? I've tried llvm::CodeGenOpt::Aggressive but it doesn't vectorize it
neither.

Thanks,
Matthieu
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