gcc/testsuite/gcc.c-torture/execute/pr63302.c

   1 /* PR tree-optimization/63302 */
   2
   3 #ifdef __SIZEOF_INT128__
   4 #if __SIZEOF_INT128__ * __CHAR_BIT__ == 128
   5 #define USE_INT128
   6 #endif
   7 #endif
   8 #if __SIZEOF_LONG_LONG__ * __CHAR_BIT__ == 64
   9 #define USE_LLONG
  10 #endif
  11
  12 #ifdef USE_INT128
  13 __attribute__((noinline, noclone)) int
  14 foo (__int128 x)
  15 {
  16   __int128 v = x & (((__int128) -1 << 63) | 0x7ff);
  17
  18   return v == 0 || v == ((__int128) -1 << 63);
  19 }
  20 #endif
  21
  22 #ifdef USE_LLONG
  23 __attribute__((noinline, noclone)) int
  24 bar (long long x)
  25 {
  26   long long v = x & (((long long) -1 << 31) | 0x7ff);
  27
  28   return v == 0 || v == ((long long) -1 << 31);
  29 }
  30 #endif
  31
  32 int
  33 main ()
  34 {
  35 #ifdef USE_INT128
  36   if (foo (0) != 1
  37       || foo (1) != 0
  38       || foo (0x800) != 1
  39       || foo (0x801) != 0
  40       || foo ((__int128) 1 << 63) != 0
  41       || foo ((__int128) -1 << 63) != 1
  42       || foo (((__int128) -1 << 63) | 1) != 0
  43       || foo (((__int128) -1 << 63) | 0x800) != 1
  44       || foo (((__int128) -1 << 63) | 0x801) != 0)
  45     __builtin_abort ();
  46 #endif
  47 #ifdef USE_LLONG
  48   if (bar (0) != 1
  49       || bar (1) != 0
  50       || bar (0x800) != 1
  51       || bar (0x801) != 0
  52       || bar (1LL << 31) != 0
  53       || bar (-1LL << 31) != 1
  54       || bar ((-1LL << 31) | 1) != 0
  55       || bar ((-1LL << 31) | 0x800) != 1
  56       || bar ((-1LL << 31) | 0x801) != 0)
  57     __builtin_abort ();
  58 #endif
  59   return 0;
  60 }