[LLVMdev] call different function while running

[赵夏]

Hello every, I am new to LLVM, using it to create a system
Now I have a problem
code below:

int main(int argc, char **argv)
{
      symbolic(2);//symbolic(int a)

      sleep(1,2);//sleep(int a, int b)
}

two definations of sleep
int sleep(int a, int b)
{
     return a+b;
}
int sleep(int a, int b)
{
    return a-b;
}

can I choose different sleep() by the result of symbolic(),
if symbolic(5)  calling the first sleep
if symbolic(2)  calling the second sleep

how to make it by using PASS, how to complete it by writing symbolic()
Do you have any ideas,
Thank you very much
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