sdcc/support/regression/tests/gcc-torture-execute-pr65215-2.c

   1 /*
   2    pr65215-2.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 #include <limits.h>
  12
  13 /* PR tree-optimization/65215 */
  14
  15 static inline unsigned int
  16 foo (unsigned int x)
  17 {
  18   return (x >> 24) | ((x >> 8) & 0xff00) | ((x << 8) & 0xff0000) | (x << 24);
  19 }
  20
  21 unsigned long long
  22 bar (unsigned long long *x)
  23 {
  24   return ((unsigned long long) foo (*x) << 32) | foo (*x >> 32);
  25 }
  26
  27 void
  28 testTortureExecute (void)
  29 {
  30   if (CHAR_BIT != 8 || sizeof (unsigned int) != 4 || sizeof (unsigned long long) != 8)
  31     return;
  32   unsigned long long l = foo (0xfeedbea8U) | ((unsigned long long) foo (0xdeadbeefU) << 32);
  33   if (bar (&l) != 0xfeedbea8deadbeefULL)
  34     ASSERT (0);
  35   return;
  36 }