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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug lto/113208] [14 Regression] lto1: error: Alias and target's
 comdat groups differs since r14-5979-g99d114c15523e0
Date: Wed, 10 Apr 2024 13:28:17 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D113208

--- Comment #24 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
As documented in
https://itanium-cxx-abi.github.io/cxx-abi/abi.html#mangling-special-ctor-dt=
or
C2 is base object constructor (C1 is complete object constructor, C3 is
allocating complete constructor).
C5 is an extension we use in the PR3187 r0-97383-g24b3ff2c53806d3d=20
(related discussion starts at
https://gcc.gnu.org/legacy-ml/gcc-patches/2009-11/threads.html#00700 and
continues to
https://gcc.gnu.org/legacy-ml/gcc-patches/2009-12/threads.html#00023 )
optimization for the comdat name containing both the C1 and C2 versions of =
the
constructors as aliases.=