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From: "mpolacek at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/90254] [8/9/10 Regression] ice on aggregate initialization
 of unmovable base
Date: Mon, 20 Apr 2020 23:34:27 +0000
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X-Bugzilla-Keywords: ice-on-invalid-code
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D90254

--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
This reduced test actually regressed with r241187:

struct A {
  A(A &);
};
struct B : A { };

A foo ();

int
main ()
{
  B{foo()};
}

$ ./cc1plus -quiet x.C -std=3Dc++17
during RTL pass: expand
x.C: In function =E2=80=98int main()=E2=80=99:
x.C:11:3: internal compiler error: in assign_temp, at function.c:984
   11 |   B{foo()};
      |   ^~~~~~~~
0x105cdf1 assign_temp(tree_node*, int, int)
        /home/mpolacek/src/gcc/gcc/function.c:984
0xdf123d expand_call(tree_node*, rtx_def*, int)
        /home/mpolacek/src/gcc/gcc/calls.c:3825
0xfe98d5 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
        /home/mpolacek/src/gcc/gcc/expr.c:11135
0xfdc3d9 expand_expr_real(tree_node*, rtx_def*, machine_mode, expand_modifi=
er,
rtx_def**, bool)
        /home/mpolacek/src/gcc/gcc/expr.c:8358
0xfbb233 expand_normal
        /home/mpolacek/src/gcc/gcc/expr.h:288
0xfd7588 store_field
        /home/mpolacek/src/gcc/gcc/expr.c:7102
0xfcf3c6 expand_assignment(tree_node*, tree_node*, bool)
        /home/mpolacek/src/gcc/gcc/expr.c:5374
0xe12534 expand_call_stmt
        /home/mpolacek/src/gcc/gcc/cfgexpand.c:2701
0xe15cab expand_gimple_stmt_1
        /home/mpolacek/src/gcc/gcc/cfgexpand.c:3682
0xe1634a expand_gimple_stmt
        /home/mpolacek/src/gcc/gcc/cfgexpand.c:3847
0xe1e4f9 expand_gimple_basic_block
        /home/mpolacek/src/gcc/gcc/cfgexpand.c:5887
0xe2013b execute
        /home/mpolacek/src/gcc/gcc/cfgexpand.c:6542
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.=