old-autovect-branch/gcc/testsuite/gcc.dg/attr-weakref-1.c

   1 // { dg-do run }
   2 // { dg-require-weak "" }
   3 // On darwin, we use attr-weakref-1-darwin.c
   4 // { dg-skip-if "" { "*-*-darwin*" } "*" { "*" } }
   5 // { dg-options "-O2" }
   6 // { dg-additional-sources "attr-weakref-1a.c" }
   7
   8 // Copyright 2005 Free Software Foundation, Inc.
   9 // Contributed by Alexandre Oliva <aoliva@redhat.com>
  10
  11 // Torture test for weakrefs.  The first letter of an identifier
  12 // indicates whether/how it is defined; the second letter indicates
  13 // whether it is part of a variable or function test; the number that
  14 // follows is a test counter, and a letter that may follow enables
  15 // multiple identifiers within the same test (e.g., multiple weakrefs
  16 // or pointers to the same identifier).
  17
  18 // Identifiers starting with W are weakrefs; those with p are
  19 // pointers; those with g are global definitions; those with l are
  20 // local definitions; those with w are expected to be weak undefined
  21 // in the symbol table; those with u are expected to be marked as
  22 // non-weak undefined in the symbol table.
  23
  24 #include <stdlib.h>
  25
  26 #define USED __attribute__((used))
  27
  28 typedef int vtype;
  29
  30 extern vtype wv1;
  31 static vtype Wv1a __attribute__((weakref ("wv1")));
  32 static vtype *pv1a USED = &Wv1a;
  33
  34 vtype gv2;
  35 static vtype Wv2a __attribute__((weakref ("gv2")));
  36 static vtype *pv2a USED = &Wv2a;
  37
  38 static vtype lv3;
  39 static vtype Wv3a __attribute__((weakref ("lv3")));
  40 static vtype *pv3a USED = &Wv3a;
  41
  42 extern vtype uv4;
  43 static vtype Wv4a __attribute__((weakref ("uv4")));
  44 static vtype *pv4a USED = &Wv4a;
  45 static vtype *pv4 USED = &uv4;
  46
  47 static vtype Wv5a __attribute__((weakref ("uv5")));
  48 static vtype *pv5a USED = &Wv5a;
  49 extern vtype uv5;
  50 static vtype *pv5 USED = &uv5;
  51
  52 static vtype Wv6a __attribute__((weakref ("wv6")));
  53 static vtype *pv6a USED = &Wv6a;
  54 extern vtype wv6;
  55
  56 static vtype Wv7a __attribute__((weakref ("uv7")));
  57 static vtype* USED fv7 (void) {
  58   return &Wv7a;
  59 }
  60 extern vtype uv7;
  61 static vtype* USED fv7a (void) {
  62   return &uv7;
  63 }
  64
  65 extern vtype uv8;
  66 static vtype* USED fv8a (void) {
  67   return &uv8;
  68 }
  69 static vtype Wv8a __attribute__((weakref ("uv8")));
  70 static vtype* USED fv8 (void) {
  71   return &Wv8a;
  72 }
  73
  74 extern vtype wv9 __attribute__((weak));
  75 static vtype Wv9a __attribute__((weakref ("wv9")));
  76 static vtype *pv9a USED = &Wv9a;
  77
  78 static vtype Wv10a __attribute__((weakref ("Wv10b")));
  79 static vtype Wv10b __attribute__((weakref ("Wv10c")));
  80 static vtype Wv10c __attribute__((weakref ("Wv10d")));
  81 static vtype Wv10d __attribute__((weakref ("wv10")));
  82 extern vtype wv10;
  83
  84 extern vtype wv11;
  85 static vtype Wv11d __attribute__((weakref ("wv11")));
  86 static vtype Wv11c __attribute__((weakref ("Wv11d")));
  87 static vtype Wv11b __attribute__((weakref ("Wv11c")));
  88 static vtype Wv11a __attribute__((weakref ("Wv11b")));
  89
  90 static vtype Wv12 __attribute__((weakref ("wv12")));
  91 extern vtype wv12 __attribute__((weak));
  92
  93 static vtype Wv13 __attribute__((weakref ("wv13")));
  94 extern vtype wv13 __attribute__((weak));
  95
  96 static vtype Wv14a __attribute__((weakref ("wv14")));
  97 static vtype Wv14b __attribute__((weakref ("wv14")));
  98 extern vtype wv14 __attribute__((weak));
  99
 100 typedef void ftype(void);
 101
 102 extern ftype wf1;
 103 static ftype Wf1a __attribute__((weakref ("wf1")));
 104 static ftype *pf1a USED = &Wf1a;
 105 static ftype Wf1c __attribute__((weakref));
 106 extern ftype Wf1c __attribute__((alias ("wf1")));
 107 static ftype *pf1c USED = &Wf1c;
 108
 109 void gf2(void) {}
 110 static ftype Wf2a __attribute__((weakref ("gf2")));
 111 static ftype *pf2a USED = &Wf2a;
 112
 113 static void lf3(void) {}
 114 static ftype Wf3a __attribute__((weakref ("lf3")));
 115 static ftype *pf3a USED = &Wf3a;
 116
 117 extern ftype uf4;
 118 static ftype Wf4a __attribute__((weakref ("uf4")));
 119 static ftype *pf4a USED = &Wf4a;
 120 static ftype *pf4 USED = &uf4;
 121
 122 static ftype Wf5a __attribute__((weakref ("uf5")));
 123 static ftype *pf5a USED = &Wf5a;
 124 extern ftype uf5;
 125 static ftype *pf5 USED = &uf5;
 126
 127 static ftype Wf6a __attribute__((weakref ("wf6")));
 128 static ftype *pf6a USED = &Wf6a;
 129 extern ftype wf6;
 130
 131 static ftype Wf7a __attribute__((weakref ("uf7")));
 132 static ftype* USED ff7 (void) {
 133   return &Wf7a;
 134 }
 135 extern ftype uf7;
 136 static ftype* USED ff7a (void) {
 137   return &uf7;
 138 }
 139
 140 extern ftype uf8;
 141 static ftype* USED ff8a (void) {
 142   return &uf8;
 143 }
 144 static ftype Wf8a __attribute__((weakref ("uf8")));
 145 static ftype* USED ff8 (void) {
 146   return &Wf8a;
 147 }
 148
 149 extern ftype wf9 __attribute__((weak));
 150 static ftype Wf9a __attribute__((weakref ("wf9")));
 151 static ftype *pf9a USED = &Wf9a;
 152
 153 static ftype Wf10a __attribute__((weakref ("Wf10b")));
 154 static ftype Wf10b __attribute__((weakref ("Wf10c")));
 155 static ftype Wf10c __attribute__((weakref ("Wf10d")));
 156 static ftype Wf10d __attribute__((weakref ("wf10")));
 157 extern ftype wf10;
 158
 159 extern ftype wf11;
 160 static ftype Wf11d __attribute__((weakref ("wf11")));
 161 static ftype Wf11c __attribute__((weakref ("Wf11d")));
 162 static ftype Wf11b __attribute__((weakref ("Wf11c")));
 163 static ftype Wf11a __attribute__((weakref ("Wf11b")));
 164
 165 static ftype Wf12 __attribute__((weakref ("wf12")));
 166 extern ftype wf12 __attribute__((weak));
 167
 168 static ftype Wf13 __attribute__((weakref ("wf13")));
 169 extern ftype wf13 __attribute__((weak));
 170
 171 static ftype Wf14a __attribute__((weakref ("wf14")));
 172 static ftype Wf14b __attribute__((weakref ("wf14")));
 173 extern ftype wf14 __attribute__((weak));
 174
 175 #ifndef __APPLE__
 176 #define chk(p) do { if (!p) abort (); } while (0)
 177 #else
 178 #define chk(p) /* */
 179 #endif
 180
 181 int main () {
 182   chk (!pv1a);
 183   chk (pv2a);
 184   chk (pv3a);
 185   chk (pv4a);
 186   chk (pv4);
 187   chk (pv5a);
 188   chk (pv5);
 189   chk (!pv6a);
 190   chk (fv7 ());
 191   chk (fv7a ());
 192   chk (fv8 ());
 193   chk (fv8a ());
 194   chk (!pv9a);
 195   chk (!&Wv10a);
 196   chk (!&Wv11a);
 197   chk (!&Wv12);
 198   chk (!&wv12);
 199   chk (!&wv13);
 200   chk (!&Wv14a);
 201
 202   chk (!pf1a);
 203   chk (!pf1c);
 204   chk (pf2a);
 205   chk (pf3a);
 206   chk (pf4a);
 207   chk (pf4);
 208   chk (pf5a);
 209   chk (pf5);
 210   chk (!pf6a);
 211   chk (ff7 ());
 212   chk (ff7a ());
 213   chk (ff8 ());
 214   chk (ff8a ());
 215   chk (!pf9a);
 216   chk (!&Wf10a);
 217   chk (!&Wf11a);
 218   chk (!&Wf12);
 219   chk (!&wf12);
 220   chk (!&wf13);
 221   chk (!&Wf14a);
 222
 223   exit (0);
 224 }