# HG changeset patch
# User Doug Simon <doug.simon@oracle.com>
# Date 1355436285 -3600
# Node ID 97025e0b202d66f6c23143e0782627e95d91fd0d
# Parent  d526fa5640c8a106782221c6ec22300254b0e771
replaced manual intrinsification of Thread.currentThread() with a snippet

diff -r d526fa5640c8 -r 97025e0b202d graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotRuntime.java
--- a/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotRuntime.java	Thu Dec 13 22:54:04 2012 +0100
+++ b/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotRuntime.java	Thu Dec 13 23:04:45 2012 +0100
@@ -294,6 +294,7 @@
     public void installSnippets(SnippetInstaller installer, Assumptions assumptions) {
         installer.install(ObjectSnippets.class);
         installer.install(ClassSnippets.class);
+        installer.install(ThreadSnippets.class);
         installer.install(SystemSnippets.class);
         installer.install(UnsafeSnippets.class);
         installer.install(ArrayCopySnippets.class);
@@ -702,16 +703,6 @@
 
     @Override
     public StructuredGraph intrinsicGraph(ResolvedJavaMethod caller, int bci, ResolvedJavaMethod method, List<? extends Node> parameters) {
-        ResolvedJavaType holder = method.getDeclaringClass();
-        String fullName = method.getName() + ((HotSpotSignature) method.getSignature()).asString();
-        if (holder.equals(lookupJavaType(Thread.class))) {
-            if (fullName.equals("currentThread()Ljava/lang/Thread;")) {
-                StructuredGraph graph = new StructuredGraph();
-                ReturnNode ret = graph.add(new ReturnNode(graph.unique(new CurrentThread(config.threadObjectOffset, this))));
-                graph.start().setNext(ret);
-                return graph;
-            }
-        }
         return null;
     }
 
diff -r d526fa5640c8 -r 97025e0b202d graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/nodes/CurrentThread.java
--- a/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/nodes/CurrentThread.java	Thu Dec 13 22:54:04 2012 +0100
+++ b/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/nodes/CurrentThread.java	Thu Dec 13 23:04:45 2012 +0100
@@ -29,21 +29,22 @@
 import com.oracle.graal.nodes.spi.*;
 import com.oracle.graal.nodes.type.*;
 
+/**
+ * A node that loads the {@link Thread} object for the current thread.
+ */
 public final class CurrentThread extends FloatingNode implements LIRLowerable {
 
-    private int threadObjectOffset;
-
-    public CurrentThread(int threadObjectOffset, CodeCacheProvider runtime) {
-        super(StampFactory.declaredNonNull(runtime.lookupJavaType(Thread.class)));
-        this.threadObjectOffset = threadObjectOffset;
+    public CurrentThread() {
+        super(StampFactory.declaredNonNull(HotSpotGraalRuntime.getInstance().getRuntime().lookupJavaType(Thread.class)));
     }
 
     @Override
     public void generate(LIRGeneratorTool gen) {
-        Register thread = HotSpotGraalRuntime.getInstance().getRuntime().threadRegister();
-        gen.setResult(this, gen.emitLoad(new Address(Kind.Object, thread.asValue(gen.target().wordKind), threadObjectOffset), false));
+        HotSpotGraalRuntime runtime = HotSpotGraalRuntime.getInstance();
+        Register thread = runtime.getRuntime().threadRegister();
+        gen.setResult(this, gen.emitLoad(new Address(Kind.Object, thread.asValue(gen.target().wordKind), runtime.getConfig().threadObjectOffset), false));
     }
 
     @NodeIntrinsic
-    public static native Object get(@ConstantNodeParameter int threadObjectOffset);
+    public static native Thread get();
 }
diff -r d526fa5640c8 -r 97025e0b202d graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/snippets/ThreadSnippets.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/snippets/ThreadSnippets.java	Thu Dec 13 23:04:45 2012 +0100
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2011, 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.hotspot.snippets;
+
+import com.oracle.graal.hotspot.nodes.*;
+import com.oracle.graal.snippets.*;
+
+/**
+ * Snippets for {@link java.lang.Thread} methods.
+ */
+@ClassSubstitution(java.lang.Thread.class)
+public class ThreadSnippets implements SnippetsInterface {
+
+    public static Thread currentThread() {
+        return CurrentThread.get();
+    }
+}