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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/112269] [14 Regression] x86_64 GNU/Linux '-m32' multilib
 'libstdc++-v3/include/complex:1493: internal compiler error: in tsubst_expr,
 at cp/pt.cc:21534' since r14-4796-g3e3d73ed5e85e7
Date: Sat, 04 Nov 2023 08:28:48 +0000
X-Bugzilla-Reason: CC
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: c++
X-Bugzilla-Version: 14.0
X-Bugzilla-Keywords: ice-checking, ice-on-valid-code, needs-reduction,
 testsuite-fail
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X-Bugzilla-Who: redi at gcc dot gnu.org
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D112269

--- Comment #9 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Patrick Palka from comment #5)
> I can't reproduce any of these testsuite failures on trunk with x86_64
> -m32... could you provide a preprocessed source file perhaps?

The libstdc++ testsuite shows lots of failures with -m32 -std=3Dc++20

e.g.

FAIL: 23_containers/vector/48101-2_neg.cc  -std=3Dc++20  (test for errors, =
line )
FAIL: 23_containers/vector/48101-2_neg.cc  -std=3Dc++20 (test for excess er=
rors)
Excess errors:
/tmp/build/x86_64-pc-linux-gnu/32/libstdc++-v3/include/complex:1493: intern=
al
compiler error: in tsubst_expr, at cp/pt.cc:21534
0x78b9fb tsubst_expr(tree_node*, tree_node*, int, tree_node*)
        /home/test/src/gcc/gcc/cp/pt.cc:21534=