# HG changeset patch
# User Lukas Stadler <lukas.stadler@jku.at>
# Date 1335348795 -7200
# Node ID 1e3d4518813ecbb7fd67b136facb56e5055b190e
# Parent  796917d3bfc92707bda7291d7a3e9e2dd8ba6a22
don't remove empty if - merge constructs if there are guards depending on the BeginNodes

diff -r 796917d3bfc9 -r 1e3d4518813e graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/IfNode.java
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/IfNode.java	Wed Apr 25 11:33:47 2012 +0200
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/IfNode.java	Wed Apr 25 12:13:15 2012 +0200
@@ -122,7 +122,7 @@
                 EndNode trueEnd = (EndNode) trueSuccessor().next();
                 EndNode falseEnd = (EndNode) falseSuccessor().next();
                 MergeNode merge = trueEnd.merge();
-                if (merge == falseEnd.merge() && merge.forwardEndCount() == 2) {
+                if (merge == falseEnd.merge() && merge.forwardEndCount() == 2 && trueSuccessor().anchored().isEmpty() && falseSuccessor().anchored().isEmpty()) {
                     Iterator<PhiNode> phis = merge.phis().iterator();
                     if (!phis.hasNext()) {
                         // empty if construct with no phis: remove it