egcs-19990307: -foptimize-register-moves doesn't exist

[Horst von Brand]

The info file says this is an alias for -fregmove

Also, the info file says:

`-O2'
     Optimize even more.  GNU CC performs nearly all supported
     optimizations that do not involve a space-speed tradeoff.  The
     compiler does not perform loop unrolling or function inlining when
     you specify `-O2'.  As compared to `-O', this option increases
     both compilation time and the performance of the generated code.

     `-O2' turns on all optional optimizations except for loop unrolling
     and function inlining.  It also turns on the `-fforce-mem' option
     on all machines and frame pointer elimination on machines where
     doing so does not interfere with debugging.

This seems not to be right, as at least -ffloat-store, -fno-defer-pop (OK,
no optimization there, but it's confusing anyway) aren't enabled;
-ffast-math, -fstrict-aliasing aren't enabled either.

The section on -f options should be reordered to put optimizations
together, separate from miscelaneous options.

Thanks!
-- 
Horst von Brand                             vonbrand@sleipnir.valparaiso.cl
Casilla 9G, Viña del Mar, Chile                               +56 32 672616