sdcc/support/regression/tests/bug-3244.c

   1 /*
   2    bug-3240.c. A bug in z80 code generation on comparisons with 0x00 lower bytes.
   3  */
   4
   5 #include <testfwk.h>
   6
   7 #include <stdint.h>
   8
   9 #ifndef PORT_HOST
  10 #pragma disable_warning 85
  11 #endif
  12
  13 uint16_t p = 0x202;
  14
  15 int aprintf(const char *c, ...)
  16 {
  17   ASSERT(0);
  18 }
  19
  20 int bprintf(const char *c, ...)
  21 {
  22   ASSERT(1);
  23 }
  24
  25 void f(void)
  26 {
  27   if (p < 0x0200)
  28     aprintf("1. First time it does not evaluate to TRUE\r\n");
  29   else
  30     bprintf("2. First time it does evaluate to FALSE\r\n");
  31
  32   if (p < 0x0200)
  33     aprintf("3. But now it incorrectly evaluates to TRUE\r\n");
  34   else
  35     bprintf("4. It should have been FALSE\r\n");
  36 }
  37
  38 void
  39 testBug (void)
  40 {
  41   f();
  42 }
  43