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From: "mpolacek at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/100252] [9/10/11/12 Regression] Internal compiler error
 during template instantiation
Date: Mon, 25 Apr 2022 22:43:51 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100252

--- Comment #8 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
This is tricky, because we end up with

{.x=3D(&<PLACEHOLDER_EXPR struct B>)->x, .y=3D(&<PLACEHOLDER_EXPR struct A>=
)->x}

that is, two PLACEHOLDER_EXPRs for different types on the same level in one=
 {
}, so our CONSTRUCTOR_PLACEHOLDER_BOUNDARY mechanism to avoid replacing
unrelated PLACEHOLDER_EXPRs will not work.=