How to report bugs only seen with -flto?

[Georg-Johann Lay]

Ian Lance Taylor schrieb:
> Georg-Johann Lay <avr@gjlay.de> writes:
> 
>> The reporting instructions from
>> http://gcc.gnu.org/bugs/#need
>> don't outline how to report bugs that only occur with -flto
>>
>> Presumably, the bug to report is not a genuine LTO issue,
>> but only because the compiler sees code/bunch of input
>> files it does not see without -flto.
>>
>> How should such problems that involve possibly many files
>> be reported?
> 
> The key is always to provide all the information required for somebody
> else to recreate the problem.
> 
> Ian

Yes, of course.

The question is how to supply that information if dozens of sources are
involved. Making dozens of attachments/comments?

Or would an archive be better in that case?

Johann