2. 2

3. public java.lang.Object invoke(java.lang.Object);
Code:
Stack=8, Locals=8, Args_size=2
0: aload_1
1: aconst_null
2: astore_1
3: invokestatic #65; //Method clojure/lang
6: lstore_2
7: lconst_1
8: lstore 4
10: lload_2
11: lconst_0
12: lcmp
13: ifne 25
16: lload 4
18: invokestatic #71; //Method clojure/lang
21: goto 38
24: pop
25: lload_2
26: lconst_1
27: lsub
28: lload_2
29: lload 4
(defn fact [n] 31: lmul
(loop [n (long n), a 1] 32: lstore 4
(if (== n 0) 34: lstore_2
a 35: goto 10
(recur (dec n) (* n a))))) 38: areturn
3

4. (def fact
(fn-iasm [n]
(aload_1)
(checkcast Integer)
(invokevirtual ^int Integer/intValue [])
(istore_2)
(iconst_1)
(istore_3)
:loop
(iload_2)
(ifeq :end)
(ilaod_2)
(iload_3)
(imul)
(istore_3)
(iinc 2 -1)
(goto :loop)
:end
(iload_3)
(invokestatic ^Integer Integer/valueOf [int])
(areturn)))
4

5. (def fact public final java.lang.Object invoke(java.lang.
(fn-iasm [n] Code:
(aload_1) Stack=2, Locals=6, Args_size=2
(checkcast Integer) 0: aload_1
(invokevirtual ^int Integer/intValue []) 1: checkcast #25; //class java/lang/I
(istore_2) 4: invokevirtual #29; //Method java/lang/
(iconst_1) 7: istore_2
(istore_3) 8: iconst_1
:loop 9: istore_3
(iload_2) 10: iload_2
(ifeq :end) 11: ifeq 24
(ilaod_2) 14: iload_2
(iload_3) 15: iload_3
(imul) 16: imul
(istore_3) 17: istore_3
(iinc 2 -1) 18: iinc 2, -1
(goto :loop) 21: goto 10
:end 24: iload_3
(iload_3) 25: invokestatic #33; //Method java/lang/
(invokestatic ^Integer Integer/valueOf [int]) 28: areturn
(areturn)))
4

6. public java.lang.Object invoke(java.lang.Object);
Code:
Stack=8, Locals=8, Args_size=2
0: aload_1
1: aconst_null
2: astore_1
3: invokestatic #65; //Method clojure/lang
6: lstore_2
7: lconst_1
8: lstore 4
macro 10: lload_2
11: lconst_0
(defn fact [n]
(loop [n (long n), a 1] expand analyze emit 12: lcmp
13: ifne 25
(if (== n 0)
16: lload 4
a
18: invokestatic #71; //Method clojure/lang
(recur (dec n) (* n a)))))
21: goto 38
24: pop
25: lload_2
26: lconst_1
27: lsub
28: lload_2
29: lload 4
31: lmul
32: lstore 4
34: lstore_2
35: goto 10
38: areturn
5

7. public java.lang.Object invoke(java.lang.Object);
Code:
Stack=8, Locals=8, Args_size=2
0: aload_1
1: aconst_null
2: astore_1
3: invokestatic #65; //Method clojure/lang
6: lstore_2
7: lconst_1
8: lstore 4
macro 10: lload_2
11: lconst_0
(defn fact [n]
(loop [n (long n), a 1] expand analyze emit 12: lcmp
13: ifne 25
(if (== n 0)
16: lload 4
a
18: invokestatic #71; //Method clojure/lang
(recur (dec n) (* n a)))))
21: goto 38
24: pop
25: lload_2
26: lconst_1
27: lsub
28: lload_2
29: lload 4
31: lmul
32: lstore 4
34: lstore_2
35: goto 10
38: areturn
5

8. public java.lang.Object invoke(java.lang.Object);
Code:
Stack=8, Locals=8, Args_size=2
0: aload_1
1: aconst_null
2: astore_1
3: invokestatic #65; //Method clojure/lang
6: lstore_2
7: lconst_1
8: lstore 4
macro 10: lload_2
11: lconst_0
(defn fact [n]
(loop [n (long n), a 1] expand analyze emit 12: lcmp
13: ifne 25
(if (== n 0)
16: lload 4
a
18: invokestatic #71; //Method clojure/lang
(recur (dec n) (* n a)))))
21: goto 38
24: pop
25: lload_2
26: lconst_1
27: lsub
28: lload_2
29: lload 4
31: lmul
32: lstore 4
34: lstore_2
35: goto 10
38: areturn
5

9. public java.lang.Object invoke(java.lang.Object);
Code:
Stack=8, Locals=8, Args_size=2
0: aload_1
1: aconst_null
2: astore_1
3: invokestatic #65; //Method clojure/lang
6: lstore_2
7: lconst_1
8: lstore 4
macro 10: lload_2
11: lconst_0
(defn fact [n]
(loop [n (long n), a 1] expand analyze emit 12: lcmp
13: ifne 25
(if (== n 0)
16: lload 4
a
18: invokestatic #71; //Method clojure/lang
(recur (dec n) (* n a)))))
21: goto 38
24: pop
25: lload_2
public java.lang.Object invoke(java.lang.Object); 26: lconst_1
Code: 27: lsub
Stack=8, Locals=8, Args_size=2 28: lload_2
0: aload_1 29: lload 4
1: aconst_null 31: lmul
2: astore_1 32: lstore 4
3: invokestatic #65; //Method clojure/lang 34: lstore_2
6: lstore_2 35: goto 10
7: lconst_1 38: areturn
8: lstore 4
10: lload_2
11: lconst_0
12: lcmp
13: ifne 25
16: lload 4
18: invokestatic #71; //Method clojure/lang
21: goto 38
24: pop
25: lload_2
26: lconst_1
27: lsub
28: lload_2
29: lload 4
31: lmul
32: lstore 4
34: lstore_2
35: goto 10
38: areturn
5

10. 6

11. 7

15. 0.60
Clojure 1.2.1
iasm
0.45
0.30
0.15
0
100 200 300 400
9

16. 10