1  /* PR tree-optimization/28632 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O2 -ftree-vrp -fno-tree-ccp" } */
       4  /* { dg-require-effective-target int32plus } */
       5  
       6  void
       7  v4 (unsigned a, unsigned b)
       8  {
       9    if (a < 0x1000) return;
      10    if (a > 0x1000) return;
      11    if (b < 0x0110) return;
      12    /* constant true.  */
      13    if (!__builtin_constant_p ((a|b) >= 0x01000))
      14      __asm__("vrp.bug.always.true");
      15    /* VRP must not think that this is constant.  */
      16    if (__builtin_constant_p ((a|b) >= 0x10000))
      17      __asm__("vrp.bug.not.always.true");
      18  }
      19  
      20  void
      21  u4 (unsigned n)
      22  {
      23    if (n > 0x10111) return;
      24    if (n < 0x10101) return;
      25    /* always true.  */
      26    if (!__builtin_constant_p (n & 0x00100))
      27      __asm__("vrp.bug.always.true");
      28    /* VRP must not think that this is constant true.  */
      29    if (__builtin_constant_p (n & 0x00001))
      30      __asm__("vrp.bug.not.always.true");
      31    /* Out of range, always evaluates to constant false.  */
      32    if (!__builtin_constant_p (n & 0x01000))
      33      __asm__("vrp.bug.always.false");
      34  }
      35  
      36  void
      37  u5 (unsigned n)
      38  {
      39    struct s {unsigned exp:8;} x;
      40    x.exp = n;
      41    if (__builtin_constant_p(((n + 1) & 255) > 1))
      42      __asm__("vrp.bug.not.always.true");
      43  }
      44  
      45  void
      46  v5 (int a, int b)
      47  {
      48    if (a < 0x1000) return;
      49    if (a > 0x1000) return;
      50    if (b < 0x0110) return;
      51    /* constant true.  */
      52    if (!__builtin_constant_p ((a|b) >= 0x01000))
      53      __asm__("vrp.bug.always.true");
      54    /* VRP must not think that this is always true.  */
      55    if (__builtin_constant_p ((a|b) >= 0x10000))
      56      __asm__("vrp.bug.not.always.true");
      57  }
      58  
      59  /* { dg-final { scan-assembler-not "vrp\\\.bug\\\." } } */