gcc/testsuite/gcc.dg/pr53153.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2" } */
   3
   4 extern void bar (void);
   5
   6 /* Case 181 is not in the range for 'char'.  */
   7 void
   8 foo1 (char *buf)
   9 {
  10   int x = *buf;
  11   switch (x)
  12     {
  13     case -76:
  14     case 65:
  15     case 181:
  16       bar();
  17     }
  18 }
  19
  20 /* All cases are below the range of char.  */
  21 void
  22 foo2 (char *buf)
  23 {
  24   int x = *buf;
  25   switch (x)
  26     {
  27     case -150:
  28     case -140:
  29     case -130:
  30       bar();
  31     }
  32 }
  33
  34 /* All cases are above the range of char.  */
  35 void
  36 foo3 (char *buf)
  37 {
  38   int x = *buf;
  39   switch (x)
  40     {
  41     case 130:
  42     case 140:
  43     case 150: /* This case is not in the range for 'char'.  */
  44       bar();
  45     }
  46 }
  47
  48 /* The bounding cases are partially out of range for char.  */
  49 void
  50 foo4 (char *buf)
  51 {
  52   int x = *buf;
  53   switch (x)
  54     {
  55     case -130 ... -120:
  56     case 100:
  57     case 120 ... 130:
  58       bar();
  59     }
  60 }
  61