sdcc/support/regression/tests/bug3564104.c

   1 /*
   2    bug3564104.c
   3 */
   4
   5 #include <testfwk.h>
   6
   7 #include <stdint.h>
   8
   9 #ifdef __SDCC
  10 #pragma disable_warning 127
  11 #endif
  12
  13 uintptr_t array[4];
  14
  15 int i;
  16
  17 void g(const void *p)
  18 {
  19         array[i++] = (uintptr_t)(p);
  20 }
  21
  22 void f1(uintptr_t base, const char *message)
  23 {
  24         for(; *message; message++)
  25                 g((const void *)(base + *message * 8));
  26 }
  27
  28 void f2(uintptr_t base, const char *message)
  29 {
  30         for(; *message; message++)
  31         {
  32                 volatile uintptr_t tmp = base + *message * 8;
  33                 g((const void *)(tmp));
  34         }
  35 }
  36
  37 void testBug(void)
  38 {
  39         char a[] = {10, 20, 30, 40, 0};
  40
  41         i = 0;
  42         f1(0, a);
  43
  44         ASSERT(array[0] == 10 * 8);
  45         ASSERT(array[1] == 20 * 8);
  46         ASSERT(array[2] == 30 * 8);
  47         ASSERT(array[3] == 40 * 8);
  48
  49         i = 0;
  50         f2(0, a);
  51
  52         ASSERT(array[0] == 10 * 8);
  53         ASSERT(array[1] == 20 * 8);
  54         ASSERT(array[2] == 30 * 8);
  55         ASSERT(array[3] == 40 * 8);
  56 }
  57