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From: "rguenth at gcc dot gnu.org" <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 07:18:15 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114574

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |lto

--- Comment #11 from Richard Biener <rguenth at gcc dot gnu.org> ---
Wrong TYPE_CANONICAL leads to wrong TBAA.  And yes "fixing" TYPE_CANONICAL
after the fact means possibly merging two equivalence classes which means y=
ou
have to
fix all members of both classes to have the corresponding TYPE_CANONICAL.  =
Plus
the complication of derived types (vector, pointer, and others) which have
constraints based on their contained type equivalence class.=