adding invoke to a static method at begining of loop

[gaurav shankar <sh...@hotmail.com>]

Hi
I want to add call to a static method as the first line of the loop, but 
whenever I try that loop index also get adjusted likewise.That is rather 
than pointing to invoke of this method it points to same statement as 
earlier. This makes call to my method on when it enters the loop.Please 
suggest me way to make it get invoked each time loop iterates.

Thanks

Gaurav Shankar
MS,Rutgers University
USA

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Re: adding invoke to a static method at begining of loop

[David Hovemeyer <da...@cs.umd.edu>]

On Tue, Apr 22, 2003 at 02:58:27PM +0530, gaurav shankar wrote:
> Hi
> I want to add call to a static method as the first line of the loop, but 
> whenever I try that loop index also get adjusted likewise.That is rather 
> than pointing to invoke of this method it points to same statement as 
> earlier. This makes call to my method on when it enters the loop.Please 
> suggest me way to make it get invoked each time loop iterates.

You need to update targeters of the original loop head instruction
so they refer to your new instruction instead.  E.g.:

  InstructionHandle oldTarget, newTarget;

  // ...

  if( oldTarget.hasTargeters() ){
    InstructionTargeter[] targeters = oldTarget.getTargeters();

    for(int i=0;i < targeters.length; i++){
      targeters[i].updateTarget(oldTarget, newTarget);
      newTarget.addTargeter(targeters[i]);
      oldTarget.removeTargeter(targeters[i]);
    }
  }

-Dave

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