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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug sanitizer/107893] gcc trunk at -O0 (UBSan) misses a
 Null-pointer-dereference
Date: Mon, 28 Nov 2022 08:58:27 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107893

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
That is,

int main() {
  int *a =3D 0;
   (a[0] | a[1]) >> 056;
}

works at -O0:

t.c:3:6: runtime error: load of null pointer of type 'int'=