sdcc/support/regression/tests/bug-2357.c

   1 /*
   2    bug-2357.c
   3  */
   4
   5 #include <testfwk.h>
   6 #include <string.h>
   7
   8 #ifdef __SDCC
   9 #pragma std_c99
  10 #endif
  11
  12 #if defined (__SDCC) && !defined (__SDCC_pdk14) && !defined (__SDCC_pdk15) && !defined (__SDCC_pic14) && (!defined (__SDCC_mcs51) || (!defined (__SDCC_MODEL_SMALL) && !defined (__SDCC_MODEL_MEDIUM) && !defined (__SDCC_STACK_AUTO)))
  13
  14 short i = -1;
  15 union {
  16   short sv0[126];
  17   short sv1[132];
  18   long lv0[63];
  19   long lv1[66];
  20 } uv;
  21
  22 short
  23 foo2(void)
  24 {
  25   return uv.sv1[132 + i];
  26 }
  27
  28 long
  29 foo3(void)
  30 {
  31   return uv.lv1[66 + i];
  32 }
  33
  34 short
  35 foo4(void)
  36 {
  37   return uv.sv0[126 + i];
  38 }
  39
  40 long
  41 foo5(void)
  42 {
  43   return uv.lv0[63 + i];
  44 }
  45
  46 #endif
  47
  48 void
  49 testBug (void)
  50 {
  51 #if defined (__SDCC) && !defined (__SDCC_pdk14) && !defined (__SDCC_pdk15) && !defined (__SDCC_pic14) && (!defined (__SDCC_mcs51) || (!defined (__SDCC_MODEL_SMALL) && !defined (__SDCC_MODEL_MEDIUM) && !defined (__SDCC_STACK_AUTO)))
  52
  53   memset(&uv, 0x33, 128);
  54   memset((char *) &uv + 128, 0x55, 136);
  55
  56   ASSERT (foo2() == 0x5555);
  57   ASSERT (foo3() == 0x55555555L);
  58
  59   ASSERT (foo4() == 0x5555);
  60   ASSERT (foo5() == 0x55555555L);
  61
  62 #endif
  63 }