D45170.id138444.diff
No OneTemporary
Actions

Size

832 B

Referenced Files

None

Subscribers

None

D45170.id138444.diff
View Options

	Index: sys/sys/libkern.h
	===================================================================
	--- sys/sys/libkern.h
	+++ sys/sys/libkern.h
	@@ -186,6 +186,31 @@
	8 * sizeof(mask) - __builtin_clzll((unsigned long long)mask));
	}

	+static __inline __pure2 int
	+ilog2(int mask)
	+{
	+
	+ MPASS(mask != 0);
	+ return (8 * sizeof(mask) - 1 - __builtin_clz((u_int)mask));
	+}
	+
	+static __inline __pure2 int
	+ilog2l(long mask)
	+{
	+
	+ MPASS(mask != 0);
	+ return (8 * sizeof(mask) - 1 - __builtin_clzl((u_long)mask));
	+}
	+
	+static __inline __pure2 int
	+ilog2ll(long long mask)
	+{
	+
	+ MPASS(mask != 0);
	+ return (8 * sizeof(mask) - 1 -
	+ __builtin_clzll((unsigned long long)mask));
	+}
	+
	#define bitcount64(x) __bitcount64((uint64_t)(x))
	#define bitcount32(x) __bitcount32((uint32_t)(x))
	#define bitcount16(x) __bitcount16((uint16_t)(x))