[Bug rtl-optimization/56069] [7 Regression] RA pessimization

[zhongyunde at huawei dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56069

vfdff <zhongyunde at huawei dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |zhongyunde at huawei dot com

--- Comment #20 from vfdff <zhongyunde at huawei dot com> ---
> 
> Preferred/alternative class is misleading here.  It is not used anywhere in
> IRA/LRA for allocation decision (but may be it is used by reload -- i don't
> remember).  It is only used as a temporary result for allocno class
> calculation.
> 

In the newest GCC 9.x , Does the Preferred/alternative class still not used in
LRA ?