[Bug middle-end/114048] [14 regression] ICE when building libowfat-0.33 on x86

[sjames at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114048

--- Comment #2 from Sam James <sjames at gcc dot gnu.org> ---
Reduced:
```
typedef struct {
  void *child[2];
  char otherbits;
} critbit0_node;

int allprefixed_traverse(char *top) {
  if (top) {
    critbit0_node *q = (void *)top - 1;
    int direction = 0;
    for (;; ++direction)
      switch (allprefixed_traverse(q->child[direction])) {
      case 1:
        break;
      case 0:
        return 0;
      default:
        return 1;
      }
  }
}
```