gcc/testsuite/gcc.dg/alias-7.c

   1 /* { dg-do run } */
   2 /* { dg-require-alias "" } */
   3 /* { dg-options "-O2" } */
   4 /* { dg-skip-if "weak alias" { powerpc-ibm-aix* } } */
   5
   6 extern void abort (void);
   7
   8 #define ASMNAME(cname)  ASMNAME2 (__USER_LABEL_PREFIX__, cname)
   9 #define ASMNAME2(prefix, cname) STRING (prefix) cname
  10 #define STRING(x)    #x
  11
  12 int foo __asm__ (ASMNAME ("foo")) __attribute__((nocommon));
  13 extern __typeof (foo) bar __attribute__ ((weak, alias ("foo")));
  14
  15 int
  16 main (void)
  17 {
  18   if (&foo != &bar || foo || bar)
  19     abort ();
  20   return bar;
  21 }