This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
Re: VTA merge?
2009/6/21 Richard Guenther <richard.guenther@gmail.com>:
> 2009/6/21 Richard Guenther <richard.guenther@gmail.com>:
>
> So I just tested tramp3d for memory usage (I hope I got the same flags as you,
> base flags are -O2 -ffast-math -funroll-loops):
>
> -g0 -fno-var-tracking -fno-var-tracking-assignments: 502361 kB
-g0 -fno-var-tracking -fvar-tracking-assignments: 521869 kB +3.8%
(no idea what that actually tests)
Are the number and positions of VTA notes the same at -g vs. -g0?
If so the difference to the extrapolated 6% must be a GC artifact...?
> -g -fno-var-tracking -fno-var-tracking-assignments: 615305 kB +18.5%
> -g -fno-var-tracking -fvar-tracking-assignments: 647773 kB +5%
> -g -fvar-tracking -fvar-tracking-assignments: 655197 kB +1.2%
Richard.