How to report bugs only seen with -flto?

[Ian Lance Taylor]

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