one more patch for PR64317

Bernhard Reutner-Fischer rep.dot.nop@gmail.com
Fri Feb 27 23:26:00 GMT 2015


On February 27, 2015 11:03:14 PM GMT+01:00, Vladimir Makarov <vmakarov@redhat.com> wrote:
>   The following patch improves inheritance for PR64317 testcase
>
>https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64317
>
> I ran a lot SPEC2000 benchmarks to get better default parameter value 
>for EBB_PROBABILITY_CUTOFF in LRA inheritance. The new default
>parameter 
>value improves SPECInt2000 by 0.4% on x86-64 without changing
>SPECFP2000 
>rate.  The code size changes are insignificant (0.002% increase for 
>SPECInt and 0.01% decrease for SPECFP).
>
>The patch was bootstrapped and tested on x86-64.
>
>Committed as rev.221070.


+DEFPARAM (PARAM_LRA_INHERITANCE_EBB_PROBABILITY_CUTOFF,
+	  "lra-inheritance-ebb-probability-cutoff",
+	  "Minimal fall-through edge probability in percentage used to add BB to inheritance EEB in LRA",
+	  40, 0, 100)

s/EEB/EBB/
?
Thanks,




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