[Bug bootstrap/85571] [9 Regression] non-bootstrap-debug miscompare with trunk

[hubicka at ucw dot cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85571

--- Comment #9 from Jan Hubicka <hubicka at ucw dot cz> ---
> 
> so different BB re-ordering / partitioning?

That would be probably best visible from bb-reorder dumps. However...
> 
> For example in the case of gengtype from stage2/stage3 .text has the same size
> but .debug_info size differs by one byte.  But gentype code differs as well:
> 
> @@ -2884,6 +2884,7 @@
>    xx:  xx xx xx xx xx          xxllq  xx <_ZLxxpxxk_state_tokeni>
>    xx:  xx xx xx xx xx          mov    $0x1,%xxi
>    xx:  xx xx xx                mov    %rax,%rxx
> +  xx:  xx xx xx xx             mov    %rax,(%rsp)

This is something else and such changes may make partitioning to diverge. So
perhaps
first debug this one?
>    xx:  xx xx xx xx xx          xxllq  xx <_ZLxxpxxk_state_tokeni>
>    xx:  xx xx xx xx xx          mov    $0x2,%xxi
>    xx:  xx xx xx                mov    %rax,%rbp
> ...
> 
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