gcc/testsuite/gcc.dg/fold-popcount-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-original" } */
   3
   4 int test_eqzero(unsigned int a)
   5 {
   6   return __builtin_popcount(a) == 0;
   7 }
   8
   9 int test_eqzerol(unsigned long b)
  10 {
  11   return __builtin_popcountl(b) == 0;
  12 }
  13
  14 int test_eqzeroll(unsigned long long c)
  15 {
  16   return __builtin_popcountll(c) == 0;
  17 }
  18
  19 int test_nezero(unsigned int d)
  20 {
  21   return __builtin_popcount(d) != 0;
  22 }
  23
  24 int test_nezerol(unsigned long e)
  25 {
  26   return __builtin_popcountl(e) != 0;
  27 }
  28
  29 int test_nezeroll(unsigned long long f)
  30 {
  31   return __builtin_popcountll(f) != 0;
  32 }
  33
  34 /* { dg-final { scan-tree-dump-times "popcount" 0 "original" } } */
  35