Added clz, ctz, popcount, bswap, bitreverse.

lib/std/bits.c3

@@ -0,0 +1,41 @@
+module std::bits;
+
+/**
+ * @require types::is_intlike($typeof(i)) `The input must be an integer or integer vector`
+ **/
+macro popcount(i)
+{
+	return $$popcount(i);
+}
+
+/**
+ * @require types::is_intlike($typeof(i)) `The input must be an integer or integer vector`
+ **/
+macro reverse(i)
+{
+	return $$bitreverse(i);
+}
+
+/**
+ * @require types::is_intlike($typeof(i)) `The input must be an integer or integer vector`
+ **/
+macro bswap(i) @builtin
+{
+	return $$bswap(i);
+}
+
+/**
+ * @require types::is_intlike($typeof(i)) `The input must be an integer or integer vector`
+ **/
+macro ctz(i) @builtin
+{
+	return $$ctz(i);
+}
+
+/**
+ * @require types::is_intlike($typeof(i)) `The input must be an integer or integer vector`
+ **/
+macro clz(i) @builtin
+{
+	return $$clz(i);
+}