https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102809

--- Comment #3 from Aldy Hernandez <aldyh at gcc dot gnu.org> ---
(In reply to Martin Liška from comment #2)
> > Does this fix the problem?
> 
> Yes, it helps! Thank you for the patch.

Thanks for all your help here, and sorry for all the noise.  Getting the jump
threading restrictions in the presence of loops has been chore.

It seems we have finally agreed on what should be allowed, and Jeff is about to
approve the last bits.

Unfortunately, the next step is playing with the pipeline to see if we can
remove some threading passes.  This will probably unsettle things, but
hopefully not as much.

Again, thanks.

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