# HG changeset patch
# User Lukas Stadler <lukas.stadler@oracle.com>
# Date 1402676251 -7200
# Node ID 4af6f1fe425cb606e18a1209be70a1707b6def71
# Parent  5059c188c1e5459f6104fcf2a06df1d5c9b4f799
reduce unnecessary clearing of inputs

diff -r 5059c188c1e5 -r 4af6f1fe425c graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/inlining/InliningUtil.java
--- a/graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/inlining/InliningUtil.java	Fri Jun 13 17:00:12 2014 +0200
+++ b/graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/inlining/InliningUtil.java	Fri Jun 13 18:17:31 2014 +0200
@@ -289,7 +289,6 @@
                 stateAtExceptionEdge = obj.stateAfter();
                 UnwindNode unwindDuplicate = (UnwindNode) duplicates.get(unwindNode);
                 obj.replaceAtUsages(unwindDuplicate.exception());
-                unwindDuplicate.clearInputs();
                 Node n = obj.next();
                 obj.setNext(null);
                 unwindDuplicate.replaceAndDelete(n);
@@ -332,7 +331,6 @@
                 ReturnNode returnNode = (ReturnNode) duplicates.get(returnNodes.get(0));
                 Node returnValue = returnNode.result();
                 invokeNode.replaceAtUsages(returnValue);
-                returnNode.clearInputs();
                 returnNode.replaceAndDelete(n);
             } else {
                 ArrayList<ReturnNode> returnDuplicates = new ArrayList<>(returnNodes.size());
@@ -454,7 +452,6 @@
                 }
                 returnValuePhi.addInput(returnNode.result());
             }
-            returnNode.clearInputs();
             returnNode.replaceAndDelete(endNode);
 
         }
diff -r 5059c188c1e5 -r 4af6f1fe425c graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/InstanceOfSnippetsTemplates.java
--- a/graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/InstanceOfSnippetsTemplates.java	Fri Jun 13 17:00:12 2014 +0200
+++ b/graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/InstanceOfSnippetsTemplates.java	Fri Jun 13 18:17:31 2014 +0200
@@ -234,7 +234,6 @@
         public void replaceUsingInstantiation() {
             ValueNode newValue = instantiation.asMaterialization(usage.graph(), trueValue, falseValue);
             usage.replaceAtUsages(newValue);
-            usage.clearInputs();
             assert usage.usages().isEmpty();
             GraphUtil.killWithUnusedFloatingInputs(usage);
         }
@@ -246,7 +245,6 @@
             newNode.inferStamp();
             instantiation.initialize(newNode, trueValue, falseValue);
             usage.replaceAtUsages(newNode);
-            usage.clearInputs();
             assert usage.usages().isEmpty();
             GraphUtil.killWithUnusedFloatingInputs(usage);
         }
diff -r 5059c188c1e5 -r 4af6f1fe425c graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/SnippetTemplate.java
--- a/graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/SnippetTemplate.java	Fri Jun 13 17:00:12 2014 +0200
+++ b/graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/SnippetTemplate.java	Fri Jun 13 18:17:31 2014 +0200
@@ -1147,14 +1147,11 @@
                         next = fwn.next();
                         fwn.setNext(null);
                     }
-                    returnDuplicate.clearInputs();
                     returnDuplicate.replaceAndDelete(next);
                 }
             }
 
             // Remove the replacee from its graph
-            replacee.clearInputs();
-            replacee.replaceAtUsages(null);
             GraphUtil.killCFG(replacee);
 
             Debug.dump(replaceeGraph, "After lowering %s with %s", replacee, this);
@@ -1241,7 +1238,6 @@
             replacer.replace(replacee, returnValue, new DuplicateMapper(duplicates, replaceeGraph.start()));
 
             if (returnDuplicate.isAlive()) {
-                returnDuplicate.clearInputs();
                 returnDuplicate.replaceAndDelete(next);
             }