lno new optimization options

[Sebastian Pop]

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.