1 /* PR rtl-optimization/27671.
2    The combiner used to simplify "a ^ b == a" to "a" via
3    simplify_relational_operation_1 in simplify-rtx.c.  */
4 
5 extern void abort (void) __attribute__ ((noreturn));
6 extern void exit (int) __attribute__ ((noreturn));
7 
8 static int __attribute__((noinline))
foo(int a,int b)9 foo (int a, int b)
10 {
11   int c = a ^ b;
12   if (c == a)
13     abort ();
14 }
15 
16 int
main(void)17 main (void)
18 {
19   foo (0, 1);
20   exit (0);
21 }
22