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Re: [PATCH] Fix PR37053: Move tweaks of commutative precedence to targe

Subject: Re: [PATCH] Fix PR37053: Move tweaks of commutative precedence to target hook
From: Peter Bergner
Date: Fri, 26 Jun 2009 11:28:26 -0500
On Fri, 2009-06-26 at 20:04 +0400, Maxim Kuvyrkov wrote:
> Peter Bergner wrote:
> 
> > In the mean time, I have asked Luis to test your patch on POWER6 to ensure
> > there are no performance degradations.  It doesn't look like there should
> > be, but...
> 
> The assembler should be exactly the same.  If it isn't, then there's a 
> bug in the patch.

That's exactly what we're testing for.  With your patch, we'll always
decrement the precedence value if we have a pointer.  With the old code,
that occurred only for RTX_OBJ.  Maybe that's the only case were we'll
see pointers, but I personally don't know that for sure.


Peter




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