Re: gcc optimisation flags for Intel Atom
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于 2012/6/26 10:56, Michael Zintakis 写道:
I am reading some very different (and sometimes conflicting) opinions what these optimisation flags should be. So, what are the best flags to use to compile source code for running on Atom?Personally, I think using "-O2 -march=atom -msssse3 -mfpmath=sse -fomit-frame-pointer -pipe" is decent enough. Any other opinions? I am using gcc 4.4.5.
-msssse3 -> -mssse3As I know, -mfpmath=sse may slow some code speed in some architechures, but I don't know if it also is on ATOM.
-- Best Regards, xunxun