title: Performance of compiled code by compiled compiler
body: <p>If I want to achieve better performance from, let's say for example, MySQLdb, I can compile it myself and I will get better performance because it's not compiled on i386, i486 or what ever, just on my CPU. Further I can choose the compile options and so on...
  Now, I was wondering if this is true also for non-regular Software, such as compiler. 
  Here come the 1st part: </p>
  
  <ul>
  <li>Will compiling a compiler like GCC result in better performance?
  and the 2nd part:</li>
  <li>Will the code compiled by my own compiled compiler perform better?</li>
  </ul>
  
  <p>(Yes, I know, I can compile my compiler and benchmark it... but maybe ... someone already knows the answer, and will share it with us =)</p>