gcc/testsuite/gcc.dg/attr-invalid.c

   1 /* { dg-do compile } */
   2 /* { dg-options "" } */
   3
   4 #define CONCAT_(A,B) A ## B
   5 #define CONCAT(A,B) CONCAT_(A,B)
   6
   7 #define ATTR __attribute__((AT))
   8 #define ATSYM(suf) CONCAT (AT, CONCAT_ (_, suf))
   9
  10 #define AT noinline
  11
  12 typedef int ATSYM(type) ATTR; /* { dg-warning "attribute ignored" } */
  13
  14 typedef int (*ATSYM(fntype))(void) ATTR; /* { dg-warning "attribute ignored" } */
  15
  16 struct ATSYM(struct) {
  17   char dummy ATTR; /* { dg-warning "attribute ignored" } */
  18 } ATTR; /* { dg-warning "does not apply to types" } */
  19
  20 int ATSYM(var) ATTR;  /* { dg-warning "attribute ignored" } */
  21
  22 int ATSYM(fn_knrarg) (arg)
  23   int arg ATTR; /* { dg-warning "attribute ignored" } */
  24 { return 0; }
  25
  26 int ATSYM(fn_isoarg) (int arg ATTR) { return 0; } /* { dg-warning "attribute ignored" } */
  27
  28 int ATSYM(fn_vars) (void) {
  29   static int svar ATTR; /* { dg-warning "attribute ignored" } */
  30   auto int lvar ATTR; /* { dg-warning "attribute ignored" } */
  31   return 0;
  32 }
  33
  34
  35 #undef AT
  36 #define AT used
  37
  38 typedef int ATSYM(type) ATTR; /* used attribute is no longer
  39                                  ignored.  */
  40
  41 typedef int (*ATSYM(fntype))(void) ATTR; /* used attribute is no
  42                                             longer ignored.  */
  43
  44 struct ATSYM(struct) {
  45   char dummy ATTR; /* { dg-warning "attribute ignored" } */
  46 } ATTR; /* { dg-warning "does not apply to types" } */
  47
  48 int ATSYM(var) ATTR;
  49
  50 int ATSYM(fn_knrarg) (arg)
  51   int arg ATTR; /* { dg-warning "attribute ignored" } */
  52 { return 0; }
  53
  54 int ATSYM(fn_isoarg) (int arg ATTR) { return 0; } /* { dg-warning "attribute ignored" } */
  55
  56 int ATSYM(fn_vars) (void) {
  57   static int svar ATTR;
  58   auto int lvar ATTR; /* { dg-warning "attribute ignored" } */
  59   return 0;
  60 }
  61
  62
  63 /* PR 28287 */
  64 /* These are invalid on all targets.  Applying to PARM_ or FIELD_DECL
  65    also caused a tree checking ice on targets that support weak,  */
  66 #undef AT
  67 #define AT weak
  68
  69 typedef int ATSYM(type) ATTR; /* { dg-warning "attribute ignored" } */
  70
  71 typedef int (*ATSYM(fntype))(void) ATTR; /* { dg-warning "attribute ignored" } */
  72
  73 struct ATSYM(struct) {
  74   char dummy ATTR; /* { dg-warning "attribute ignored" } */
  75 };
  76
  77 int ATSYM(fn_knrarg) (arg)
  78   int arg ATTR; /* { dg-warning "attribute ignored" } */
  79 { return 0; }
  80
  81 int ATSYM(fn_isoarg) (int arg ATTR) { return 0; } /* { dg-warning "attribute ignored" } */
  82
  83
  84 /* PR target/28648  */
  85 /* These are invalid on all targets.  Applying to PARM_ or FIELD_DECL
  86    also caused a tree checking ice on targets that support dllimport.  */
  87 #undef AT
  88 #define AT dllimport
  89
  90 typedef int ATSYM(type) ATTR;  /* { dg-warning "attribute |directive ignored" } */
  91
  92 typedef int (*ATSYM(fntype))(void) ATTR;   /* { dg-warning "attribute |directive ignored" } */
  93
  94 struct ATSYM(struct) {
  95   char dummy ATTR;  /* { dg-warning "attribute |directive ignored" } */
  96 };
  97
  98 int ATSYM(fn_knrarg) (arg)
  99   int arg ATTR;  /* { dg-warning "attribute |directive ignored" } */
 100 { return 0; }
 101
 102 int ATSYM(fn_isoarg) (int arg ATTR) { return 0; }  /* { dg-warning "attribute |directive ignored" } */