[Bug tree-optimization/17863] [4.0 Regression] threefold performance loss, not inlining as much

kunert at physik dot tu-dresden dot de gcc-bugzilla@gcc.gnu.org
Tue Feb 8 16:56:00 GMT 2005


------- Additional Comments From kunert at physik dot tu-dresden dot de  2005-02-08 10:13 -------
Subject: Re:  [4.0 Regression] threefold performance
 loss, not inlining as much

Good idea.

However, this provides just another knob to tune the inlining and it is not obvious where to apply that attribute for the best performance. I played with the present dozen or so parameters for some hours to come close to the old (aka 3.4) performance, and I definitely can't handle even more. 

Thank you
Thomas Kunert



bonzini at gcc dot gnu dot org wrote:
> ------- Additional Comments From bonzini at gcc dot gnu dot org  2005-02-03 16:49 -------
> To the reporter: in this case you probably want __attribute__ ((leafify)), just 
> in case, though you are right in expecting the compiler to inline it.
> 



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17863



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