sdcc/support/regression/tests/gcc-torture-execute-20120808-1.c

   1 /*
   2    20120808-1.c from the execute part of the gcc torture suite.
   3  */
   4
   5 #include <testfwk.h>
   6
   7 #ifdef __SDCC
   8 #pragma std_c99
   9 #endif
  10
  11 volatile int i;
  12 unsigned char *volatile cp;
  13 unsigned char d[32] = { 0 };
  14
  15 void
  16 testTortureExecute (void)
  17 {
  18 #ifndef __SDCC_pdk14 // Lack of memory
  19   unsigned char c[32] = { 0 };
  20   unsigned char *p = d + i;
  21   int j;
  22   for (j = 0; j < 30; j++)
  23     {
  24       int x = 0xff;
  25       int y = *++p;
  26       switch (j)
  27         {
  28         case 1: x ^= 2; break;
  29         case 2: x ^= 4; break;
  30         case 25: x ^= 1; break;
  31         default: break;
  32         }
  33       c[j] = y | x;
  34       cp = p;
  35     }
  36   if (c[0] != 0xff
  37       || c[1] != 0xfd
  38       || c[2] != 0xfb
  39       || c[3] != 0xff
  40       || c[4] != 0xff
  41       || c[25] != 0xfe
  42       || cp != d + 30)
  43     ASSERT (0);
  44 #endif
  45 }