[Bug middle-end/83665] [8 regression] Big code size regression and some code quality improvement at Jan 2 2018

[pthaugen at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83665

Pat Haugen <pthaugen at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |pthaugen at gcc dot gnu.org

--- Comment #16 from Pat Haugen <pthaugen at gcc dot gnu.org> ---
(In reply to Jan Hubicka from comment #14)
> Author: hubicka
> Date: Mon Feb 12 09:48:06 2018
> New Revision: 257582
> 
> URL: https://gcc.gnu.org/viewcvs?rev=257582&root=gcc&view=rev
> Log:
> 
> 	PR middle-end/83665
> 	* params.def (inline-min-speedup): Increase from 8 to 15.
> 	(max-inline-insns-auto): Decrease from 40 to 30.
> 	* ipa-split.c (consider_split): Add some buffer for function to
> 	be considered inlining candidate.
> 	* invoke.texi (max-inline-insns-auto, inline-min-speedup): UPdate
> 	default values.
> 
> Modified:
>     trunk/gcc/ChangeLog
>     trunk/gcc/doc/invoke.texi
>     trunk/gcc/ipa-split.c
>     trunk/gcc/params.def

This change is responsible for a 6% degradation in CPU2000 175.vpr and a 12%
degradation in CPU2006 401.bzip2. Both run on a Power7 box.