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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug lto/99898] Possible LTO object incompatibility on gcc-10 branch
Date: Tue, 06 Apr 2021 10:26:26 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99898

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Many of the *.opt changes are target specific, so you'd need to test it also
across all targets, and furthermore it depends on what exactly is being
saved/restored, many options might be at the same spot.
So perhaps we want to compute some hash of the options stuff (e.g. compute =
it
by the awk scripts that emit options*.[ch]) and use that to determine LTO
compatibility in addition to the version?=