On 09/04/2015 04:58 PM, Ranjan Maitra wrote:
I used gcc with -O3 or -Ofast. Any suggestions on this?
Stay with -O2 unless you precisely know what you are doing.
Playing with -O3 and -Ofast may squeeze out some usecs somewhere, but
because you are using less used and tested paths of the compiler, you're
at risk of facing bugs/miscompilation etc.
Ralf
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