[3.3/mainline] cleanup cfg only once when not optimizing

[Jan Hubicka]

> On Fri, Feb 28, 2003 at 11:28:19AM +0100, Jan Hubicka wrote:
> > currently we call cleanup_cfg 4 times...
> 
> True, but wouldn't it make most sense to leave the last one
> and not the first one?  
Then a lot of code would bubble trought the compiler.
> 
> How does this affect compile times and object sizes on, say,
> a bootstrap with BOOT_CFLAGS=-O0?
I tried to compile combine.o and insn-attrtab.o and got exactly the same
files.  It saves about 4% on insn-attrtab.

Honza
> 
> 
> r~