ck_hp: Branch-free compare (contributed by Degski).

src/ck_hp.c

@@ -154,14 +154,7 @@ hazard_compare(const void *a, const void *b)
 
 	x = a;
 	y = b;
-
-	if (*x < *y) {
-		return -1;
-	} else if (*x == *y) {
-		return 0;
-	}
-
-	return 1;
+	return ((*x > *y) - (*x < *y));
 }
 
 CK_CC_INLINE static bool