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Re: [3.3/mainline] cleanup cfg only once when not optimizing
- From: Jan Hubicka <jh at suse dot cz>
- To: Richard Henderson <rth at redhat dot com>, Jan Hubicka <jh at suse dot cz>,gcc-patches at gcc dot gnu dot org
- Date: Sat, 1 Mar 2003 01:14:45 +0100
- Subject: Re: [3.3/mainline] cleanup cfg only once when not optimizing
- References: <20030228102819.GE5431@kam.mff.cuni.cz> <20030228184045.GC13165@redhat.com>
> 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~