Date: Tue, 22 Oct 2013 14:22:43 +0200 From: magnum <john.magnum@...hmail.com> To: john-dev@...ts.openwall.com Subject: Re: OpenCL vectorizing how-to. On 2013-10-22 14:10, magnum wrote: > Maybe in the long run they are right. Or maybe future versions of > their optimizers will be able to analyze pre-vectorized code and > decide whether it could be used without "re-vectorizing". And ultimately, future optimizers will hopefully make twice as good vectorized code from scalar source than any human can produce anyway. Optimizing plain C code (for CPU) was once a rewarding art, but nowadays it's often just a Bad Idea because it just confuses the optimizer and stops it from producing much better code than you could think of anyway. magnum
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