Re: Alias analysis - does base_alias_check still work ?

[Toon Moene <toon@moene.indiv.nluug.nl>]

Richard Henderson wrote:

> On Fri, Jul 19, 2002 at 04:40:26PM +0200, Toon Moene wrote:
> > Which begs the question: Is there a reason -fschedule-insns isn't on by
> > default when using -O2 ?

> Yes.  The fact that the scheduler doesn't understand register
> pressure means that pre-register-allocation scheduling generally
> sucks eggs on x86.

Thanks.  Independently from your message and David Edelsohn's (showing the
comment that gives the rationale for turning this option off on ix86) I
came to the same conclusion while having dinner (nothing helps better than
give the grey cells some rest :-)

Now the 64K question is: How can it be that I came around going through all
this trouble because I saw the same "mis-optimization" on the Alpha, where
- given what Daniel showed us - -fschedule-insns is on ?

I'm switching machines as we speak to test this ...

-- 
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