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Re: [BusyBox] Re: Long term code compactness regression
> So, will we retain the option of setting an aligned stack along with -Os
Not.
currently the mainline contains patch to default stack alignment to 2 if
-Os is present I am not quite happy about.
You can still pass -Os and overwrite the alignment by -mpreferred-stack-bodary=4
> ? On most of my applications, -Os together with -funroll-loops and
> aligned data is the fastest running combination for ia32, by a large
> margin.
Do you have any idea why this happends? We should really keep -O2 faster
than -Os in most cases.
I've done some work on the mainline to avoid code bloat in -O2 mode, so
maybe the score is better now.
Honza