https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81323

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |aldyh at gcc dot gnu.org,
                   |                            |amacleod at redhat dot com

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #1)
> We do not have "return functions" but all IPA propagations just work on the
> acyclic graph call arg -> callee.

Well, we don't need to propagate that immediately again, then I agree we'd need
to propagate the ranges through the whole program then.  All that would be
sufficient for start would be to remember the global ranges of the return
values and copy those to the callers.

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