Re: -O2 vs -O3

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Christopher Thompson <chris@hypocrite.org> writes:

|> Brief question:
|>
|> Linux kernels are compiled with the -O2 flag set. I'm curious, why don't we
|> use -O3?

Because the only difference between -O2 and -O3 is -finline-functions,
which is bad for the kernel sources (which wants to control inlining
explicitly).

Andreas.

-- 
Andreas Schwab                                  "And now for something
SuSE Labs                                        completely different."
Andreas.Schwab@suse.de
SuSE GmbH, Schanzäckerstr. 10, D-90443 Nürnberg
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