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/* { dg-do compile } */
/* { dg-require-effective-target popcountl } */
/* { dg-options "-O3 -fdump-tree-optimized -fno-tree-ch" } */
extern int foo (int);
int PopCount (long b) {
int c = 0;
b++;
while (b) {
b &= b - 1;
c++;
}
return c;
}
int PopCount2 (long b) {
int c = 0;
while (b) {
b &= b - 1;
c++;
}
foo (c);
return foo (c);
}
void PopCount3 (long b1) {
for (long i = 0; i < b1; ++i)
{
long b = i;
int c = 0;
while (b) {
b &= b - 1;
c++;
}
foo (c);
}
}
/* { dg-final { scan-tree-dump-times "__builtin_popcount|\\.POPCOUNT" 3 "optimized" } } */
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