[LLVMdev] Fwd: No SSE instructions

[Serg Anohovsky]

2011/5/22 Reid Kleckner <reid.kleckner at gmail.com>

> When asking this type of question, you should be specific about how
> you built the program, ie did you use clang, llvm-gcc, or dragonegg,
> and which options did you use.  From your message, I can't tell if you
> built at O0 or O3.
>
> In this case, no, LLVM does not have any auto-vectorization
> optimizations.  However, LLVM does have good support for vector
> intrinsics, so if you use xmmintrin.h you should be able to get good
> performance.
>
> Reid
>

Thanks, for your explanation. It is very useful for me.

--
Serg Anohovsky.
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