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From: "marxin at gcc dot gnu.org" <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 08:20:05 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106892

--- Comment #5 from Martin Li=C5=A1ka <marxin at gcc dot gnu.org> ---
Clean up test-case:

$ cat pr106892.c
int a, b, c, d, e;
int f[8];

int
g() {
  while (a)
    a >>=3D 4;
  return 0;
}

int
h(int i) {
  if (i >=3D '0')
    return i - '0';
}

void
j(int 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;
    }
}

int
main() {
  j(1);
  __builtin_printf("%d\n", f[2]);
  if (f[2] !=3D 0)
    __builtin_abort ();
  return 0;
}

Started to print '3' since r11-963-g80d6f89e78fc3b77.=