Mercurial > hg > graal-compiler

annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/phases/LoadJavaMirrorWithKlassPhase.java @ 10074:e8fbc5fd3440

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
aot: add/fix some javadoc
author Bernhard Urban <bernhard.urban@jku.at>
date Mon, 17 Jun 2013 17:50:09 +0200
parents e65727799325
children 1669d8b5863a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
10004
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
1 /*
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
4 *
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
7 * published by the Free Software Foundation.
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
8 *
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
13 * accompanied this code).
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
14 *
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
18 *
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
20 * or visit www.oracle.com if you need additional information or have any
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
21 * questions.
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
22 */
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
23 package com.oracle.graal.hotspot.phases;
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
24
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
25 import static com.oracle.graal.api.meta.LocationIdentity.*;
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
26
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
27 import com.oracle.graal.api.meta.*;
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
28 import com.oracle.graal.hotspot.meta.*;
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
29 import com.oracle.graal.nodes.*;
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
30 import com.oracle.graal.nodes.extended.*;
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
31 import com.oracle.graal.nodes.type.*;
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
32 import com.oracle.graal.phases.*;
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
33 import com.oracle.graal.phases.tiers.*;
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
34
10074
e8fbc5fd3440 aot: add/fix some javadoc
Bernhard Urban <bernhard.urban@jku.at>
parents: 10011
diff changeset
35 /**
e8fbc5fd3440 aot: add/fix some javadoc
Bernhard Urban <bernhard.urban@jku.at>
parents: 10011
diff changeset
36 * For AOT compilation we aren't allowed to use a class reference (javaMirror) directly. Instead the
e8fbc5fd3440 aot: add/fix some javadoc
Bernhard Urban <bernhard.urban@jku.at>
parents: 10011
diff changeset
37 * class reference should be obtained from the klass object. The reason for this is, that in CDS a
e8fbc5fd3440 aot: add/fix some javadoc
Bernhard Urban <bernhard.urban@jku.at>
parents: 10011
diff changeset
38 * klass object is mapped to a fixed address in memory, but the javaMirror is not (which lives in
e8fbc5fd3440 aot: add/fix some javadoc
Bernhard Urban <bernhard.urban@jku.at>
parents: 10011
diff changeset
39 * the java heap).
e8fbc5fd3440 aot: add/fix some javadoc
Bernhard Urban <bernhard.urban@jku.at>
parents: 10011
diff changeset
40 *
e8fbc5fd3440 aot: add/fix some javadoc
Bernhard Urban <bernhard.urban@jku.at>
parents: 10011
diff changeset
41 * Lowering can introduce new ConstantNodes containing a class reference, thus this phase must be
e8fbc5fd3440 aot: add/fix some javadoc
Bernhard Urban <bernhard.urban@jku.at>
parents: 10011
diff changeset
42 * applied after lowering.
e8fbc5fd3440 aot: add/fix some javadoc
Bernhard Urban <bernhard.urban@jku.at>
parents: 10011
diff changeset
43 */
10004
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
44 public class LoadJavaMirrorWithKlassPhase extends BasePhase<PhaseContext> {
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
45
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
46 @Override
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
47 protected void run(StructuredGraph graph, PhaseContext context) {
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
48 for (ConstantNode node : graph.getNodes().filter(ConstantNode.class)) {
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
49 Constant constant = node.asConstant();
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
50 if (constant.getKind() == Kind.Object && constant.asObject() instanceof Class<?>) {
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
51 ResolvedJavaType type = context.getRuntime().lookupJavaType((Class<?>) constant.asObject());
10011
e65727799325 LoadJavaMirrorWithKlassPhase: replace if with an assertion
Bernhard Urban <bernhard.urban@jku.at>
parents: 10008
diff changeset
52 assert type instanceof HotSpotResolvedObjectType;
10004
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
53
10011
e65727799325 LoadJavaMirrorWithKlassPhase: replace if with an assertion
Bernhard Urban <bernhard.urban@jku.at>
parents: 10008
diff changeset
54 HotSpotRuntime runtime = (HotSpotRuntime) context.getRuntime();
10004
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
55
10011
e65727799325 LoadJavaMirrorWithKlassPhase: replace if with an assertion
Bernhard Urban <bernhard.urban@jku.at>
parents: 10008
diff changeset
56 Constant klass = ((HotSpotResolvedObjectType) type).klass();
e65727799325 LoadJavaMirrorWithKlassPhase: replace if with an assertion
Bernhard Urban <bernhard.urban@jku.at>
parents: 10008
diff changeset
57 ConstantNode klassNode = ConstantNode.forConstant(klass, runtime, graph);
10004
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
58
10011
e65727799325 LoadJavaMirrorWithKlassPhase: replace if with an assertion
Bernhard Urban <bernhard.urban@jku.at>
parents: 10008
diff changeset
59 Stamp stamp = StampFactory.exactNonNull(runtime.lookupJavaType(Class.class));
e65727799325 LoadJavaMirrorWithKlassPhase: replace if with an assertion
Bernhard Urban <bernhard.urban@jku.at>
parents: 10008
diff changeset
60 LocationNode location = graph.unique(ConstantLocationNode.create(FINAL_LOCATION, stamp.kind(), runtime.config.classMirrorOffset, graph));
e65727799325 LoadJavaMirrorWithKlassPhase: replace if with an assertion
Bernhard Urban <bernhard.urban@jku.at>
parents: 10008
diff changeset
61 FloatingReadNode freadNode = graph.add(new FloatingReadNode(klassNode, location, null, stamp));
e65727799325 LoadJavaMirrorWithKlassPhase: replace if with an assertion
Bernhard Urban <bernhard.urban@jku.at>
parents: 10008
diff changeset
62
e65727799325 LoadJavaMirrorWithKlassPhase: replace if with an assertion
Bernhard Urban <bernhard.urban@jku.at>
parents: 10008
diff changeset
63 graph.replaceFloating(node, freadNode);
10004
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
64 }
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
65 }
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
66 }
c4a0e878868f class constants: add hotspot specific phase to load java mirror via klass* (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents:
diff changeset
67 }