1  /* { dg-do compile } */
       2  /* { dg-require-alias "" } */
       3  /* { dg-require-weak "" } */
       4  /* { dg-options "-fno-common -Waddress" } */
       5  /* { dg-skip-if "" { x86_64-*-mingw* } } */
       6  
       7  /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?ffoo1a" } } */
       8  /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?ffoo1b" } } */
       9  /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?ffoo1c" } } */
      10  /* { dg-final { scan-assembler-not "weak\[^ \t\]*\[ \t\]_?ffoo1d" } } */
      11  /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?ffoo1e" } } */
      12  /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?ffoo1f" } } */
      13  /* { dg-final { scan-assembler "weak\[^ \t\]*\[ \t\]_?ffoo1g" } } */
      14  
      15  /* test function addresses with __attribute__((weak)) */
      16  
      17  extern void * ffoo1a (void) __attribute__((weak));
      18  extern void * ffoo1a (void);
      19  void * foo1a (void)
      20  {
      21    return (void *)ffoo1a;
      22  }
      23  
      24  
      25  extern void * ffoo1b (void);
      26  extern void * ffoo1b (void) __attribute__((weak));
      27  void * foo1b (void)
      28  {
      29    return (void *)ffoo1b;
      30  }
      31  
      32  
      33  extern void * ffoo1c (void);  
      34  void * foo1c (void)
      35  {
      36    return (void *)ffoo1c;
      37  }
      38  extern void * ffoo1c (void) __attribute__((weak));
      39  
      40  
      41  int ffoo1d (void);
      42  int ffoo1d (void) __attribute__((weak));
      43  
      44  
      45  extern void * ffoo1e (void);
      46  extern void * ffoo1e (void)  __attribute__((weak));
      47  void * foo1e (void)
      48  {
      49    if (ffoo1e)
      50      ffoo1e ();
      51    return 0;
      52  }
      53  
      54  
      55  extern void * ffoo1f (void);    
      56  void * foo1f (void)
      57  {
      58    if (ffoo1f) /* { dg-warning "-Waddress" } */
      59      ffoo1f ();
      60    return 0;
      61  }
      62  void * ffoox1f (void) { return (void *)0; }
      63  extern void * ffoo1f (void)  __attribute__((weak, alias ("ffoox1f")));
      64  
      65  
      66  extern void * ffoo1g (void);
      67  void * ffoox1g (void) { return (void *)0; }
      68  extern void * ffoo1g (void)  __attribute__((weak, alias ("ffoox1g")));
      69  void * foo1g (void)
      70  {
      71    /* ffoo1g is a weak alias for a symbol defined in this file, expect
      72       a -Waddress for the test (which is folded to true).  */
      73    if (ffoo1g)       // { dg-warning "-Waddress" }
      74      ffoo1g ();
      75    return 0;
      76  }