sdcc/support/regression/tests/bug1464657.c

   1 /*
   2    bug1464657.c
   3 */
   4
   5 #include <testfwk.h>
   6
   7 static void f1(void)
   8 {
   9 }
  10
  11 static short f2(void)
  12 {
  13   return 0;
  14 }
  15
  16 static unsigned char f3(unsigned char a)
  17 {
  18   return a+5;
  19 }
  20
  21 unsigned char var;
  22
  23 void f()
  24 {
  25   switch (var) {
  26     case 0:
  27       f1();
  28       break;
  29   case 1:
  30       f1();
  31       break;
  32   case 2:
  33       var++;
  34       f1();
  35       break;
  36     case 4:
  37       f1();
  38       break;
  39     case 5:
  40       break;
  41     case 7:
  42       f1();
  43       break;
  44     case 6:
  45       f1();
  46       break;
  47     case 8:
  48       f1();
  49       break;
  50     case 9:
  51       f1();
  52       break;
  53     case 12:
  54       {
  55         unsigned char nc;
  56         unsigned short b = f2();
  57         unsigned char nb = f3(b);
  58         var = f3(b);
  59         nc = f3(nb);
  60       }
  61       break;
  62   }
  63 }
  64
  65 void test_Peephole251(void)
  66 {
  67   var = 12;
  68   f();
  69   ASSERT (var==5);
  70 }