sdcc/support/regression/tests/gcc-torture-execute-20020216-1.c

   1 /*
   2    20020216-1.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 /* PR c/3444
  12    This used to fail because bitwise xor was improperly computed in char type
  13    and sign extended to int type.  */
  14
  15 signed char c = (signed char) 0xffffffff;
  16
  17 int foo (void)
  18 {
  19   return (unsigned short) c ^ (signed char) 0x99999999;
  20 }
  21
  22 void testTortureExecute (void)
  23 {
  24   if ((unsigned char) -1 != 0xff
  25       || sizeof (short) != 2
  26       || sizeof (int) != 4)
  27     return;
  28   if (foo () != (int) 0xffff0066)
  29     ASSERT (0);
  30   return;
  31 }
  32