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Old 01 September 2016, 18:34   #68
jbl007
Registered User
 
Join Date: Mar 2013
Location: Leipzig/Germany
Posts: 416
-Ofast
makes crazy optimizations (enables many unsafe flags). Better stick with
-O2
as default options. https://wiki.gentoo.org/wiki/GCC_optimization

But I admit, it could be interesting to compare JIT-compiler performance with different gcc optimizations flags.
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