Mail Archives: djgpp/1997/12/08/09:06:12
On Wed, 3 Dec 1997, William A. Barath wrote:
> | `-O3'
> | Optimize yet more. `-O3' turns on all optimizations specified by
> | `-O2' and also turns on the `inline-functions' option.
>
> Which will make your program faster if it doesn't bloat it to the point
> that it can no longer be efficiently cached...
In my experience, the speedup is only seen when you compile relatively
short functions. For real-life medium-size functions, -O3 will
slow the code down more often than not.
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