[Bug sanitizer/81223] [8 Regression] ICE in instrument_null at gcc/ubsan.c:1230

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81223

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Slightly cleaned up testcase:

void bar ();

void
foo (int x)
{
  struct S { char a[x]; } v;
  bar (v);
}

Marek, your patch is preapproved with this testcase if it passes
bootstrap/regtest.