1 /* { dg-do compile } */ 2 /* { dg-options "-O3 -fwhole-program" } */ 3 /* { dg-final { scan-assembler-not "mystr" } } */ 4 5 6 extern const char *mystr; /* normally in a header */ 7 const char *mystr; main()8 main() 9 { 10 } 11