Enable autoinlining for size at O2

Manuel López-Ibáñez lopezibanez@gmail.com
Tue Sep 4 16:49:00 GMT 2007


On 04/09/07, Andrew Pinski <pinskia@gmail.com> wrote:
> On 9/4/07, Manuel López-Ibáñez <lopezibanez@gmail.com> wrote:
> >
> > If this works as advertised, why not enable it with -Os also?
>
> because it is.  -Os is -O2 minus a couple of things and plus a couple others.
>

Reading the doc excerpt I quoted, it is not obvious whether the option
is enabled at -Os. In many other options we mention explicitly Os,

      -foptimize-sibling-calls
           Optimize sibling and tail recursive calls.

           Enabled at levels -O2, -O3, -Os.

I am just asking for

@item -finline-small-functions
@opindex finline-small-functions
Integrate functions into their callers when their body is smaller than expected
function call code (so overall size of program gets smaller).  The compiler
heuristically decides which functions are simple enough to be worth integrating
in this way.

- Enabled at level @option{-O2}.
+ Enabled at level @option{-O2}, @option{-Os}.

Sorry for being too picky,

Manuel.



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