gcc/testsuite/gcc.dg/tree-ssa/vrp89.c

   1 /* PR target/29776 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -fdump-tree-vrp1" } */
   4 /* { dg-final { scan-tree-dump-not "link_error" "vrp1"} } */
   5 /* { dg-final { cleanup-tree-dump "vrp1" } } */
   6
   7 #define A(fn, arg, min, max) \
   8   if (__builtin_##fn (arg) < min || __builtin_##fn (arg) > max) \
   9     link_error ();
  10 #define B(fn, min, max) \
  11   A (fn, a, min, max) A (fn##l, b, min, max) A (fn##ll, c, min, max)
  12 #define C(fn, min, sub) \
  13   A (fn, a, min, ((int) sizeof (a) * __CHAR_BIT__ - sub)) \
  14   A (fn##l, b, min, ((int) sizeof (b) * __CHAR_BIT__ - sub)) \
  15   A (fn##ll, c, min, ((int) sizeof (c) * __CHAR_BIT__ - sub))
  16 #define D(fn, sub1, sub2) \
  17   A (fn, a, ((int) sizeof (a) * __CHAR_BIT__ - sub1), \
  18      ((int) sizeof (a) * __CHAR_BIT__ - sub2)) \
  19   A (fn##l, b, ((int) sizeof (b) * __CHAR_BIT__ - sub1), \
  20      ((int) sizeof (b) * __CHAR_BIT__ - sub2)) \
  21   A (fn##ll, c, ((int) sizeof (c) * __CHAR_BIT__ - sub1), \
  22      ((int) sizeof (c) * __CHAR_BIT__ - sub2))
  23
  24 extern void link_error (void);
  25
  26 unsigned int d;
  27 unsigned long e;
  28 unsigned long long f;
  29
  30 void
  31 foo (unsigned int a, unsigned long b, unsigned long long c)
  32 {
  33   B (parity, 0, 1)
  34   C (ffs, 0, 0)
  35   C (popcount, 0, 0)
  36   C (clz, 0, 0)
  37   C (ctz, -1, 0)
  38   a &= 63;
  39   b &= 63;
  40   c &= 63;
  41   B (ffs, 0, 6)
  42   B (popcount, 0, 6)
  43   a += 3; b += 3; c += 3;
  44   B (ffs, 1, 7)
  45   B (popcount, 1, 7)
  46   a = 32U + (d & 1023U);
  47   b = 32UL + (e & 1023UL);
  48   c = 32ULL + (f & 1023ULL);
  49   D (clz, 11, 6)
  50   B (ctz, 0, 10)
  51 }
  52
  53 void
  54 bar (int a, long b, long long c)
  55 {
  56   C (clrsb, 0, 1)
  57 }