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From: "muecker at gwdg dot de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug lto/114574] [14 regression] ICE when building curl with LTO
 (fld_incomplete_type_of, at ipa-free-lang-data.cc:257) since r14-9763
Date: Thu, 04 Apr 2024 07:48:34 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114574

Martin Uecker <muecker at gwdg dot de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |muecker at gwdg dot de

--- Comment #13 from Martin Uecker <muecker at gwdg dot de> ---


(In reply to Richard Biener from comment #11)
> Wrong TYPE_CANONICAL leads to wrong TBAA.  And yes "fixing" TYPE_CANONICAL
> after the fact means possibly merging two equivalence classes which means
> you have to
> fix all members of both classes to have the corresponding TYPE_CANONICAL.=
=20
> Plus
> the complication of derived types (vector, pointer, and others) which have
> constraints based on their contained type equivalence class.


Is upgrading incomplete types from structural comparison to TYPE_CANONICAL
meant to be allowed?=