Comparison of Itanium gcc 4.1 and 4.2 on Spec2000

Mark Mitchell
Fri Feb 23 16:00:00 GMT 2007

Vladimir N. Makarov wrote:
> Here is the comparison of 4.1 branch and 4.2 branch.  In brief, 4.2
> has 0.47% better performance in SPECInt2000 and 2.2% better
> performance in SPECFP2000.


I assume that is with the aliasing safety patches turned on, i.e.,
current state of the 4.2 branch?  Are you able to try reverting the
aliasing patches to see how much of an impact they have on Itanium?  It
would be interesting to know how that compares with the 4% on IA32.


Mark Mitchell
(650) 331-3385 x713

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