`-Wuninitialized` fails to emit a warning for uninitialized fixed-size local arrays

[ams-x9v2b7kq]

c is uninitialized and used in the main function.
Options: -Wall -Wextra -Wuninitialized -Wconditional-uninitialized -O2
Link: https://godbolt.org/z/1aMWdEfjr
Code:

int b[24] = {0};
int main() {
  int c[24];
  for (int d = 0; d < 24; ++d)
    b[d] = c[d];
  __builtin_printf("%d\n", b[0]);
  return 0;
}

This might be related to #66448