https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115138

--- Comment #2 from rguenther at suse dot de <rguenther at suse dot de> ---
> Am 17.05.2024 um 16:20 schrieb iains at gcc dot gnu.org 
> <gcc-bugzi...@gcc.gnu.org>:
> 
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115138
> 
>            Bug ID: 115138
>           Summary: [15 Regression] Bootstrap compare-debug fail after
>                    r15-580-gf3e5f4c58591f5
>           Product: gcc
>           Version: 14.0
>            Status: UNCONFIRMED
>          Severity: normal
>          Priority: P3
>         Component: tree-optimization
>          Assignee: unassigned at gcc dot gnu.org
>          Reporter: iains at gcc dot gnu.org
>                CC: rguenth at gcc dot gnu.org
>  Target Milestone: ---
>            Target: x86_64-darwin
> 
> The compare fail is a symbol name mismatch (AFAICT) the code is otherwise
> identical.
> 
> a single fail fails gcc/d/opover.o
> 
> There's:
> 
>        .const
> _CSWTCH.155:
>        .byte   38
>        .byte   37
>        .byte   40
>        .byte   39
> 
> where the stage1 compiler (and x86_64 Linux) produces _CSWTCH.154
> 
> At present, still trying to figure out how to debug this further .. it's D so
> no preprocessed output - I guess will have to try tree dumps.

Did the followup fix maybe resolve this?

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