Alias Analysis Improvement Patch

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On Fri, 13 Jun 2003, Vladimir N. Makarov wrote:

> The compiler is also slower ~25% (890s vs 1140 s) with the new alias
> analysis on SPECINT2000.
> 
> I did not check the code size (it is not important for Itanium).
> 
> Practically the same picture is for SPECFP2000 tests (new aliasing results
> in incorrect work of 4 tests).
> 
> Although I've found a test when the patch gives a big improvement (2%).  It
> is whetstone
> 
> Sanjiv, the results are frustrated ones but I am not giving up.  I'll work
> on it.  Alias analysis is important thing.  Theoretically it is better
> approach then SSA one because it is flow sensitive.  So I am going to find
> what is wrong with the results.  Although I am not sure that it will happen
> soon.
> 
> Another thing is we should speed up it considerably to justify the patch
> adoption.
> 
> Vlad
> 
> 
>