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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/111591] ppc64be: miscompilation with -mstrict-align /
 -O3
Date: Thu, 19 Oct 2023 11:12:48 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D111591

--- Comment #23 from Richard Biener <rguenth at gcc dot gnu.org> ---
A less strict patch would remember whether all accesses to the decls coales=
ced
have accesses compatible with a common effective type (just checking whether
all decls have the same type isn't enough, even when they are not
addressable!),
so it's going to be a bit awkward to check - an IL walk noting per decl
whether all accesses conform to its declared type might be a good first ste=
p,
but with C++ abstraction we will likely end up with not many cases that
can be easily identifyable as doing so.=