# HG changeset patch
# User Bernhard Urban <bernhard.urban@jku.at>
# Date 1380705381 -7200
# Node ID fbcde297f87a545607dd16c5a9b8d998dd3b8d83
# Parent  7763a42d1658f85034e803d9202a85d509c5c357
NewMemoryAwareScheudling: process loop a second time in order to compute the loop exists correctly with the new merged state

diff -r 7763a42d1658 -r fbcde297f87a graal/com.oracle.graal.phases/src/com/oracle/graal/phases/schedule/SchedulePhase.java
--- a/graal/com.oracle.graal.phases/src/com/oracle/graal/phases/schedule/SchedulePhase.java	Wed Oct 02 13:32:30 2013 +0200
+++ b/graal/com.oracle.graal.phases/src/com/oracle/graal/phases/schedule/SchedulePhase.java	Wed Oct 02 11:16:21 2013 +0200
@@ -250,18 +250,16 @@
 
         @Override
         protected List<Map<LocationIdentity, Node>> processLoop(Loop loop, Map<LocationIdentity, Node> state) {
-            LoopInfo<Map<LocationIdentity, Node>> info = ReentrantBlockIterator.processLoop(this, loop, new HashMap<>(state));
+            LoopInfo<Map<LocationIdentity, Node>> info = ReentrantBlockIterator.processLoop(this, loop, cloneState(state));
 
             assert loop.header.getBeginNode() instanceof LoopBeginNode;
             Map<LocationIdentity, Node> headerState = merge(loop.header, info.endStates);
-            // getBlockToKillMap().put(loop.header, headerState);
+            // second iteration, for computing information at loop exits
+            info = ReentrantBlockIterator.processLoop(this, loop, cloneState(headerState));
 
             int i = 0;
             for (Block exit : loop.exits) {
                 Map<LocationIdentity, Node> exitState = info.exitStates.get(i++);
-                for (LocationIdentity key : headerState.keySet()) {
-                    exitState.put(key, headerState.get(key));
-                }
 
                 Node begin = exit.getBeginNode();
                 assert begin instanceof LoopExitNode;