sdcc/support/regression/tests/gcc-torture-execute-pr19005.c

   1 /*
   2    pr19005.c from the execute part of the gcc torture tests.
   3  */
   4
   5 #include <testfwk.h>
   6
   7 #ifdef __SDCC
   8 #pragma std_c99
   9 #endif
  10
  11 /* PR target/19005 */
  12
  13 int v, s;
  14
  15 void
  16 bar (int a, int b)
  17 {
  18   unsigned char x = v;
  19
  20   if (!s)
  21     {
  22       if (a != x || b != (unsigned char) (x + 1))
  23         ASSERT (0);
  24     }
  25   else if (a != (unsigned char) (x + 1) || b != x)
  26     ASSERT (0);
  27   s ^= 1;
  28 }
  29
  30 int
  31 foo (int x)
  32 {
  33   unsigned char a = x, b = x + 1;
  34
  35   bar (a, b);
  36   a ^= b; b ^= a; a ^= b;
  37   bar (a, b);
  38   return 0;
  39 }
  40
  41 void
  42 testTortureExecute (void)
  43 {
  44   for (v = -10; v < 266; v++)
  45     foo (v);
  46   return;
  47 }