Aliasing/reload

[Mark Mitchell]

Brend --

  In mail that I just (accidentally) deleted, you mention that if
alias analysis knew that spilled registers could not alias anything,
life would get much better.  We now have the machinery for doing this,
and I would like to do this work; in fact, the changes should be
straightforward, I think.

  Do you happen to have a test-case (preferable for x86) for which you
think the generated code would be improved by this optimization?  Such
a test-case will allow me to verify the fixes.

-- 
Mark Mitchell 			mark@markmitchell.com
Mark Mitchell Consulting	http://www.markmitchell.com