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Re: lno new optimization options
- From: Sebastian Pop <sebastian dot pop at cri dot ensmp dot fr>
- To: Serge Belyshev <1319 at bot dot ru>
- Cc: gcc at gcc dot gnu dot org
- Date: Mon, 22 Mar 2004 18:13:39 +0100
- Subject: Re: lno new optimization options
- References: <87r7vkiz7u.fsf@bot.ru>
On Mon, Mar 22, 2004 at 08:11:17PM +0300, Serge Belyshev wrote:
> Which ones should work and which only for bug collecting like -fnew-ra?
>
> I cannot bootstrap current lno if -ftree-elim-checks or -ftree-ddg
> or -fgcse-after-reload is in BOOT_CFLAGS -- gcc or genattrab segfaults, or
> gengtype prints meaningless error.
>
I know that elim-check is not enough solid for passing the bootstrap
for the moment... I have to make it learn more about the types before
letting it go play on real codes ;-)
> Neither I cannot bootstrap it with BOOT_CFLAGS set to '-O2 -fomit-frame-pointer
> -fweb -ftree-loop-optimize -ftree-vectorize -fscalar-evolutions -fall-data-deps'
> because of bootstrap comparison failure.
>
-fscalar-evolutions and -fall-data-deps are just used for debugging
the analyzers; they don't modify the program.