optimization options controlled by user

[staticx]

"gcc -c -Q -OLevel --help=optimizers" usually returns all gcc optimizations
of the specified level *including default ones*. 

For a given optimization level (01, O2,...), I would like to get
(automatically through CLI) the list of optimization options *that are only
controlled through command line* like they are provided in GCC doc.

I recall that in GCC there are default optimizations that are automatically
triggered when applying one of the standard optimization flags.


 



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