egcs bloat on i586-pc-linux-gnulibc1...

[Horst von Brand]

As promised, I checked by building egcs-970922 (+ recommended patches) both
with itself and with egcs-970907, with and without -fno-exceptions in the
last case. The results for cc1, cccp and genemit (the only three
executables that built for all three cases) are as follows (6-fe is
gcc-2.90.06, 9-fe is gcc-2.90.09, 9-fne is gcc-2.90.09 +
-fno-exceptions). The other CFLAGS where -O2 -fomit-frame-pointer
-mpentium; binutils-2.8.1.0.1, libc-5.4.38, ld.so-1.9.5. The following are
the Total-s for size -A of each program.

	      6-fe         9-fne              9-fe
cc1       : 1443461   1460719 ( 1.19%)   2249705 ( 55.9%)
cccp      :  102022    121298 (18.9%)     148540 ( 45.6%)
genemit   :   19924     39255 (97.0%)      45789 (120%)

The percent increase for cc1 is reasonable with -fno-exceptions (but I'd
prefer for it to disapear :-), the others are simply outrageous. It looks
like there is some more or less constant part to the increase from 6-fe to
9-fne? Most of the difference in sizes is due to the .stab, .stabstr
sections for cc1; the .eh_frame section contributes little. And the .stab,
.stabstr increases are almost the same for cc1 and genemit.
-- 
Horst von Brand                             vonbrand@sleipnir.valparaiso.cl
Casilla 9G, Viña del Mar, Chile                               +56 32 672616