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From: "zhendong.su at inf dot ethz.ch" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/108574] wrong code at -Os and above on
 x86_64-linux-gnu
Date: Fri, 27 Jan 2023 17:07:45 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D108574

--- Comment #1 from Zhendong Su <zhendong.su at inf dot ethz.ch> ---
Here is another reproducer likely for the same bug.

Compiler Explorer: https://godbolt.org/z/Efvczc6f8


[556] % gcctk -O3 small.c
[557] % ./a.out
Floating point exception
[558] %=20
[558] % cat small.c
int a, b, c, d, e, f, g =3D -1, h;
void l() {
  if (!e)
    goto i;
  for (; g; g++) {
    b =3D ~d;
    int j =3D 0, k =3D 1;
    if (k && (b || f))
      j =3D b;
  i:
    a =3D ~j;
  }
}
int main() {
  h =3D 3;
  for (; h; h--) {
    e =3D 1;
    int m =3D ~a, n =3D 1 % m;
    c =3D n;
    l();
  }
  return 0;
}=