changeset 8324:94f07a009d0e

Removed unused phase.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Sun, 17 Mar 2013 19:36:10 +0100
parents 0fd97e8f511e
children 330b455f18be
files graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/ConvertUnreachedToGuardPhase.java
diffstat 1 files changed, 0 insertions(+), 72 deletions(-) [+]
line wrap: on
line diff
--- a/graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/ConvertUnreachedToGuardPhase.java	Sun Mar 17 19:20:35 2013 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,72 +0,0 @@
-/*
- * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-package com.oracle.graal.phases.common;
-
-import com.oracle.graal.api.code.*;
-import com.oracle.graal.api.meta.*;
-import com.oracle.graal.graph.*;
-import com.oracle.graal.nodes.*;
-import com.oracle.graal.nodes.extended.*;
-import com.oracle.graal.nodes.util.*;
-import com.oracle.graal.phases.*;
-
-public class ConvertUnreachedToGuardPhase extends Phase {
-
-    private OptimisticOptimizations opt;
-
-    public ConvertUnreachedToGuardPhase(OptimisticOptimizations opt) {
-        this.opt = opt;
-    }
-
-    @Override
-    protected void run(StructuredGraph graph) {
-        if (!opt.removeNeverExecutedCode()) {
-            return;
-        }
-        for (Node node : graph.getNodes()) {
-            if (node instanceof IfNode) {
-                IfNode ifNode = (IfNode) node;
-                BeginNode insertGuard = null;
-                BeginNode delete = null;
-                boolean inverted = false;
-                if (ifNode.probability(ifNode.trueSuccessor()) == 0) {
-                    insertGuard = ifNode.falseSuccessor();
-                    delete = ifNode.trueSuccessor();
-                    inverted = true;
-                } else if (ifNode.probability(ifNode.falseSuccessor()) == 0) {
-                    insertGuard = ifNode.trueSuccessor();
-                    delete = ifNode.falseSuccessor();
-                }
-                if (insertGuard != null) {
-                    GuardNode guard = graph.unique(new GuardNode(ifNode.condition(), BeginNode.prevBegin(ifNode), DeoptimizationReason.UnreachedCode, DeoptimizationAction.InvalidateReprofile,
-                                    inverted));
-                    graph.addBeforeFixed(ifNode, graph.add(new ValueAnchorNode(guard)));
-                    GraphUtil.killCFG(delete);
-                    graph.removeSplit(ifNode, inverted ? ifNode.falseSuccessor() : ifNode.trueSuccessor());
-                }
-            }
-        }
-
-    }
-
-}