1 /* { dg-do compile } */ 2 /* { dg-options "-O2" } */ 3 4 enum 5 { Failed, NoError, NoDiskette } 6 a; 7 int b, c; 8 void fn1()9 fn1 () 10 { 11 if (c) 12 a << 1; 13 switch (b) 14 { 15 default: 16 a << 1; 17 case 0: 18 b = 0; 19 case 1: 20 case NoDiskette: 21 ; 22 } 23 } 24 25