1  /* PR middle-end/81824 - Warn for missing attributes with function aliases
       2     Verify that attributes always_inline, gnu_inline, and noinline aren't
       3     copied.  Also verify that copying attribute tls_model to a non-thread
       4     variable triggers a warning.
       5     { dg-do compile }
       6     { dg-require-alias "" }
       7     { dg-options "-Wall" }
       8     { dg-require-effective-target tls } */
       9  
      10  #define ATTR(...)   __attribute__ ((__VA_ARGS__))
      11  
      12  ATTR (always_inline, gnu_inline, noreturn) inline int
      13  finline_noret (void)
      14  {
      15    __builtin_abort ();
      16    /* Expect no -Wreturn-type.  */
      17  }
      18  
      19  int call_finline_noret (void)
      20  {
      21    finline_noret ();
      22    /* Expect no -Wreturn-type.  */
      23  }
      24  
      25  
      26  ATTR (copy (finline_noret)) int
      27  fnoret (void);
      28  
      29  int call_fnoret (void)
      30  {
      31    fnoret ();
      32    /* Expect no -Wreturn-type.  */
      33  }
      34  
      35  
      36  /* Verify that attribute always_inline on an alias target doesn't
      37     get copied and interfere with attribute noinline on the alias
      38     (trigger a warning due to a conflict).  */
      39  
      40  ATTR (always_inline) static inline int
      41  finline (void) { return 0; }
      42  
      43  ATTR (alias ("finline"), noinline) int
      44  fnoinline (void);
      45  
      46  ATTR (copy (finline)) int
      47  fnoinline (void);
      48  
      49  
      50  ATTR (tls_model ("global-dynamic")) __thread int
      51    tls_target;
      52  
      53  ATTR (alias ("tls_target"), copy (tls_target)) extern __thread int
      54    thread_alias;
      55  
      56  
      57  ATTR (alias ("tls_target"), copy (tls_target)) extern int
      58    alias;            /* { dg-warning ".tls_model. attribute ignored because .alias. does not have thread storage duration" } */