gcc/testsuite/gcc.dg/lto/pr55703_0.c

   1 /* { dg-lto-do run } */
   2 /* { dg-lto-options { { -O2 -flto -fno-tree-copy-prop -fno-tree-dce } } } */
   3
   4 int try (int num) {
   5   __label__ lab1, lab2, lab3, lab4, lab5, lab6, default_lab;
   6
   7   void *do_switch (int num) {
   8     switch(num) {
   9     case 1:
  10       return &&lab1;
  11     case 2:
  12       return &&lab2;
  13     case 3:
  14       return &&lab3;
  15     case 4:
  16       return &&lab4;
  17     case 5:
  18       return &&lab5;
  19     case 6:
  20       return &&lab6;
  21     default:
  22       return &&default_lab;
  23     }
  24   }
  25
  26   goto *do_switch (num);
  27
  28  lab1:
  29   return 1;
  30
  31  lab2:
  32   return 2;
  33
  34  lab3:
  35   return 3;
  36
  37  lab4:
  38   return 4;
  39
  40  lab5:
  41   return 5;
  42
  43  lab6:
  44   return 6;
  45
  46  default_lab:
  47   return -1;
  48 }
  49
  50 int
  51 main()
  52 {
  53   int i;
  54   for (i = 1; i <= 6; i++)
  55     {
  56       if (try (i) != i)
  57         __builtin_abort();
  58     }
  59   __builtin_exit(0);
  60 }