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我正試圖理解Java JITC的'本地代碼生成和執行'部分,但是很難直觀地看到會發生什麼。例如。說我有下面的類:Java JITC本地代碼生成/執行示例?
class Foo
{
private int x;
public void incX()
{
x++;
}
}
javac的生成方法如下字節碼:
public void incX();
Code:
Stack=3, Locals=1, Args_size=1
0: aload_0
1: dup
2: getfield #17; //Field x:I
5: iconst_1
6: iadd
7: putfield #17; //Field x:I
10: return
LineNumberTable:
line 33: 0
line 34: 10
LocalVariableTable:
Start Length Slot Name Signature
0 11 0 this LFoo;
當JITC轉換爲本地代碼這一點,到底發生了什麼?這個本地代碼是如何由JVM執行的?