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Re: RFC: Improving GCC8 default option settings

On Wed, Sep 13, 2017 at 03:41:19PM +0200, Richard Biener wrote:
> On its own -O3 doesn't add much (some loop opts and slightly more
> aggressive inlining/unrolling), so whatever it does we
> should consider doing at -O2 eventually.

Well, -O3 adds vectorization, which we don't enable at -O2 by default.

	Jakub
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