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From: "shaohua.li at inf dot ethz.ch" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/106892] Wrong code at -O3 on x86_64-linux-gnu
Date: Fri, 09 Sep 2022 07:53:19 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106892

--- Comment #3 from Li Shaohua <shaohua.li at inf dot ethz.ch> ---
Yes, I reduced it too much. Here is the new one with return value in g()
function.

a, b, c, d, e;
f[8];
g() {
  while (a)
    a >>=3D 4;
  return 0;
}
h(i) {
  if (i >=3D '0')
    return i - '0';
}
j(i) {
  b =3D 2;
  for (; g() <=3D 7; b++)
    if (i) {
      for (; e <=3D 7; e++) {
        c =3D 1;
        for (; c <=3D 7; c++) {
          d =3D h(b + 48);
          f[-d + 4] ^=3D 3;
        }
      }
      return;
    }
}
main() {
  j(1);
  printf("%d\n", f[2]);
}=