--- a/python/registerallocator.py	Sun Sep 29 14:08:15 2013 +0200
+++ b/python/registerallocator.py	Sat Oct 12 09:56:23 2013 +0200
@@ -34,10 +34,18 @@
         self.activeMoves = set()
         self.worklistMoves = set()
 
+    def printLive(self):
+        print('Liveness:')
+        for i in self.f.instructions:
+            cfgn = self.f.cfg._map[i]
+            print(i, cfgn.live_in)
+
     def Build(self):
         """ 1. Construct interference graph from instruction list """
         self.f.cfg = FlowGraph(self.f.instructions)
         self.f.ig = InterferenceGraph(self.f.cfg)
+        self.printLive()
+
         self.Node = self.f.ig.getNode
 
         # Divide nodes into pre-colored and initial:
@@ -56,6 +64,7 @@
         dict(self.f.tempMap) # start with pre-colored
 
         self.moves = [i for i in self.f.instructions if i.ismove]
+        print(self.moves)
         for mv in self.moves:
             self.Node(mv.src[0]).moves.add(mv)
             self.Node(mv.dst[0]).moves.add(mv)
@@ -159,6 +168,7 @@
             okColors = self.regs - takenregs
             if okColors:
                 self.color[n] = first(okColors)
+                n.color = self.color[n]
             else:
                 raise NotImplementedError('Spill required here!')
         
@@ -166,6 +176,7 @@
         # Remove coalesced moves:
         for mv in self.coalescedMoves:
             self.f.instructions.remove(mv)
+
         # Use allocated registers:
         lookup = lambda t: self.color[self.Node(t)]
         for i in self.f.instructions:
@@ -173,7 +184,7 @@
             i.dst = tuple(map(lookup, i.dst))
 
     def allocFrame(self, f):
-        """ Do register allocation for a single stack frame. """
+        """ Do iterated register allocation for a single stack frame. """
         self.InitData(f)
         self.Build()
         self.makeWorkList()