1 /* PR tree-optimization/57322 */ 2 /* { dg-do compile } */ 3 /* { dg-options "-w -O1" } */ 4 int a; 5 f(void)6 void f (void) 7 { 8 char b; 9 10 for (;; a++) 11 { 12 char *p = &b, *q; 13 *q = b < 0 & !!*p; 14 } 15 } 16