[Bug tree-optimization/69214] ICE (segfault) at -Os on x86_64-linux-gnu in "fail_abnormal_edge_coalesce"

[helloqirun at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69214

--- Comment #1 from Qirun Zhang <helloqirun at gmail dot com> ---
Here is a smaller case:

--------
long a;

extern int fun1();
extern void fun2();
extern void setjmp();
void foo() {
  int d = 0;
  fun2();
  setjmp();
  a = d;
  d = 8;
  !a && fun1();
}
--------