[Bug tree-optimization/94125] [9/10 Regression] wrong code at -O3 on x86_64-linux-gnu

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94125

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |jakub at gcc dot gnu.org

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Somewhat reduced testcase:

unsigned char b, f;
short d[1][8][1], *g = &d[0][3][0];

int
main ()
{
  int k[] = { 0, 0, 0, 4, 0, 0 };
  for (int c = 2; c >= 0; c--)
    {
      b = f;
      *g = k[c + 3];
      k[c + 1] = 0;
    }
  for (int i = 0; i < 8; i++)
    if (d[0][i][0] != 0)
      __builtin_abort ();
  return 0;
}