[Bug rtl-optimization/44281] [4.9/5/6 Regression] Global Register variable pessimisation

[bernds at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44281

Bernd Schmidt <bernds at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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           Assignee|vmakarov at redhat dot com         |bernds at gcc dot gnu.org

--- Comment #23 from Bernd Schmidt <bernds at gcc dot gnu.org> ---
Ok, I know what's causing it - ebx could take part in register allocation since
we seem to have proper lifetime information for it and it dies in some places,
but IRA ignores it since global regs get added to fixed_regs.