JVM-20130325

class a {    public static int addmult(int x, int y, int z) {       int temp = x + y;       return z * temp;    }    public static int cal1(int x, int y, int z) {       int sum = 0;       for(int i = 0; i < 8000; i++) {          sum += addmult(x, y, z);       }       return sum;    }    public static int cal2(int x, int y, int z) {       int sum = 0;       for(int i = 0; i < 8000; i++) {          sum += addmult(x, y, z);       }       return sum;    }    public static void main (String args[]) {long startTime = System.currentTimeMillis();        int x = 1;        int y = 1;        int z = 1;        a.cal1(x, y, z);        a.cal2(x, y, z);long endTime = System.currentTimeMillis();        System.err.println("time: "+ (endTime - startTime)+" z = "+z);        }}

 11     Parm    ===  3  [[ 24 ]] Parm1: int !jvms: a::addmult @ bci:-1 10     Parm    ===  3  [[ 24 ]] Parm0: int !jvms: a::addmult @ bci:-1 24     AddI    === _  10  11  [[ 25 ]]  !jvms: a::addmult @ bci:2 12     Parm    ===  3  [[ 25 ]] Parm2: int !jvms: a::addmult @ bci:-1 3      Start   ===  3  0  [[ 3  5  6  7  8  9  10  11  12 ]]  #{0:control, 1:abIO, 2:memory, 3:rawptr:BotPTR, 4:return_address, 5:int, 6:int, 7:int} 25     MulI    === _  12  24  [[ 26 ]]  !jvms: a::addmult @ bci:6 9      Parm    ===  3  [[ 26 ]] ReturnAdr !jvms: a::addmult @ bci:-1 8      Parm    ===  3  [[ 26 ]] FramePtr !jvms: a::addmult @ bci:-1 7      Parm    ===  3  [[ 26 ]] Memory  Memory: @BotPTR *+bot, idx=Bot; !jvms: a::addmult @ bci:-1 6      Parm    ===  3  [[ 26 ]] I_O !jvms: a::addmult @ bci:-1 5      Parm    ===  3  [[ 26 ]] Control !jvms: a::addmult @ bci:-1 26     Return  ===  5  6  7  8  9 returns 25  [[ 0 ]] 0      Root    ===  0  26  [[ 0  1  3 ]] inner