# HG changeset patch
# User Lukas Stadler <lukas.stadler@oracle.com>
# Date 1403792855 -7200
# Node ID b35b25c683873f789800f3d1988c69c925465716
# Parent  0815ca9d7747a55c4429194e6fdfb04af707daa9
returning null Canonicalizer.canonical replaces usages with null

diff -r 0815ca9d7747 -r b35b25c68387 graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/CanonicalizerPhase.java
--- a/graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/CanonicalizerPhase.java	Thu Jun 26 16:27:35 2014 +0200
+++ b/graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/CanonicalizerPhase.java	Thu Jun 26 16:27:35 2014 +0200
@@ -304,6 +304,7 @@
                 if (node instanceof FloatingNode) {
                     if (canonical == null) {
                         // case 1
+                        node.replaceAtUsages(null);
                         graph.removeFloating((FloatingNode) node);
                     } else {
                         // case 2
@@ -328,6 +329,7 @@
                         tool.addToWorkList(fixedWithNext.next());
                         if (canonical == null) {
                             // case 3
+                            node.replaceAtUsages(null);
                             graph.removeFixed(fixedWithNext);
                         } else if (canonical instanceof FloatingNode) {
                             // case 4