/* PR optimization/12544 *//* Origin: Tony Hosking <hosking@cs.purdue.edu> *//* Verify that non-local structures passed by invisible   reference are correctly put in the stack.  */typedef struct {  int a;  int f;} A;A *b;void x (A a) {  void y () {    a.a = 0;  }  b = &a;  y();}