[Bug c++/102538] [11/12 Regression] Wrong narrowing conversion checking for initializer with union

[jakub at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102538

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Testcase for the wrong-code:
struct X { union { char r8[8]; int r32[2]; }; };
struct Y { X v[1]; };
Y x = { { { .r32 = { 5, 6 } } } };

int
main ()
{
  if (x.v[0].r32[0] != 5 || x.v[0].r32[1] != 6)
    __builtin_abort ();
}