# New Ticket Created by  Curtis Rawls 
# Please include the string:  [perl #36584]
# in the subject line of all future correspondence about this issue. 
# <URL: https://rt.perl.org/rt3/Ticket/Display.html?id=36584 > 


This patch:
-Adds an "immediate dominator" attribute to the CFG.
-Adds an algorithm to (inefficiently) compute idoms from the dominator sets.
-Switches the compute_dominators algorithm to the non-BFS version (the
BFS version is faster but does not always work correctly).
-Modifies dump_dominators to display the idom of each block in parentheses.

-Curtis