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annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/stubs/Stub.java @ 21526:1da7aef31a08

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created com.oracle.graal.hotspot.jvmci package and moved classes destined for future JVMCI module into it (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Tue, 19 May 2015 23:16:07 +0200
parents b04f579c803f
children 93c50cefb9e8
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1 /*
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2 * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.graal.hotspot.stubs;
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24
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25 import static com.oracle.graal.compiler.GraalCompiler.*;
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26 import static com.oracle.graal.hotspot.HotSpotGraalRuntime.*;
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27
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28 import java.util.*;
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29
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30 import com.oracle.graal.api.code.*;
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31 import com.oracle.graal.api.meta.*;
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32 import com.oracle.graal.compiler.common.*;
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33 import com.oracle.graal.compiler.target.*;
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34 import com.oracle.graal.debug.*;
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35 import com.oracle.graal.debug.Debug.Scope;
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36 import com.oracle.graal.debug.internal.*;
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37 import com.oracle.graal.hotspot.*;
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38 import com.oracle.graal.hotspot.jvmci.*;
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39 import com.oracle.graal.hotspot.meta.*;
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40 import com.oracle.graal.hotspot.nodes.*;
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41 import com.oracle.graal.lir.asm.*;
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42 import com.oracle.graal.lir.phases.*;
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43 import com.oracle.graal.lir.phases.PostAllocationOptimizationPhase.PostAllocationOptimizationContext;
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44 import com.oracle.graal.lir.profiling.*;
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45 import com.oracle.graal.nodes.*;
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46 import com.oracle.graal.phases.*;
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47 import com.oracle.graal.phases.schedule.*;
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48 import com.oracle.graal.phases.tiers.*;
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49
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50 //JaCoCo Exclude
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51
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52 /**
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53 * Base class for implementing some low level code providing the out-of-line slow path for a snippet
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54 * and/or a callee saved call to a HotSpot C/C++ runtime function or even a another compiled Java
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55 * method.
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56 */
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57 public abstract class Stub {
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58
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59 private static final List<Stub> stubs = new ArrayList<>();
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60
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61 /**
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62 * The linkage information for a call to this stub from compiled code.
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63 */
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64 protected final HotSpotForeignCallLinkage linkage;
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65
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66 /**
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67 * The code installed for the stub.
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68 */
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69 protected InstalledCode code;
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71 /**
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72 * Compilation result from which {@link #code} was created.
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73 */
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74 protected CompilationResult compResult;
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75
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76 /**
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77 * The registers destroyed by this stub.
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78 */
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79 private Set<Register> destroyedRegisters;
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80
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81 public void initDestroyedRegisters(Set<Register> registers) {
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82 assert registers != null;
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83 assert destroyedRegisters == null || registers.equals(destroyedRegisters) : "cannot redefine";
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84 destroyedRegisters = registers;
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85 }
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86
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87 /**
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88 * Gets the registers defined by this stub. These are the temporaries of this stub and must thus
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89 * be caller saved by a callers of this stub.
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90 */
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91 public Set<Register> getDestroyedRegisters() {
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92 assert destroyedRegisters != null : "not yet initialized";
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93 return destroyedRegisters;
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94 }
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95
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96 /**
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97 * Determines if this stub preserves all registers apart from those it
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98 * {@linkplain #getDestroyedRegisters() destroys}.
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99 */
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100 public boolean preservesRegisters() {
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101 return true;
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102 }
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103
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104 protected final HotSpotProviders providers;
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105
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106 /**
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107 * Creates a new stub.
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108 *
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109 * @param linkage linkage details for a call to the stub
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110 */
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111 public Stub(HotSpotProviders providers, HotSpotForeignCallLinkage linkage) {
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112 this.linkage = linkage;
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113 this.providers = providers;
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diff changeset
114 stubs.add(this);
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115 }
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diff changeset
116
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diff changeset
117 /**
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118 * Gets an immutable view of all stubs that have been created.
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diff changeset
119 */
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diff changeset
120 public static Collection<Stub> getStubs() {
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diff changeset
121 return Collections.unmodifiableList(stubs);
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parents:
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122 }
445193cc2a7d added support for writing stubs in Java and wrote the TLAB fast refill stub
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parents:
diff changeset
123
9660
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parents: 9654
diff changeset
124 /**
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125 * Gets the linkage for a call to this stub from compiled code.
c37c52445e75 javadoc fixes
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parents: 9654
diff changeset
126 */
9740
c4b1aa93b9af rename: HotSpotRuntimeCallTarget -> HotSpotForeignCallLinkage
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diff changeset
127 public HotSpotForeignCallLinkage getLinkage() {
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parents:
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128 return linkage;
445193cc2a7d added support for writing stubs in Java and wrote the TLAB fast refill stub
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parents:
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129 }
445193cc2a7d added support for writing stubs in Java and wrote the TLAB fast refill stub
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
130
15011
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diff changeset
131 public RegisterConfig getRegisterConfig() {
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diff changeset
132 return null;
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diff changeset
133 }
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parents: 14559
diff changeset
134
9660
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diff changeset
135 /**
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diff changeset
136 * Gets the graph that from which the code for this stub will be compiled.
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parents: 9654
diff changeset
137 */
9617
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diff changeset
138 protected abstract StructuredGraph getGraph();
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139
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diff changeset
140 @Override
9654
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parents: 9621
diff changeset
141 public String toString() {
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parents: 9621
diff changeset
142 return "Stub<" + linkage.getDescriptor() + ">";
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143 }
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144
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parents: 9615
diff changeset
145 /**
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diff changeset
146 * Gets the method the stub's code will be associated with once installed. This may be null.
9617
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parents: 9615
diff changeset
147 */
9621
e97dc9bbfedc introduced installedCodeOwner parameter of type ResolvedJavaMethod to GraalCompiler.compileGraph to properly distinguish the source method of a graph from the method under which the code compiled for the graph will be installed
Doug Simon <doug.simon@oracle.com>
parents: 9620
diff changeset
148 protected abstract ResolvedJavaMethod getInstalledCodeOwner();
9617
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parents: 9615
diff changeset
149
9654
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parents: 9621
diff changeset
150 /**
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parents: 9621
diff changeset
151 * Gets a context object for the debug scope created when producing the code for this stub.
18632807db02 RuntimeStub installation support is now more distinct from normal nmethod installation
Doug Simon <doug.simon@oracle.com>
parents: 9621
diff changeset
152 */
18632807db02 RuntimeStub installation support is now more distinct from normal nmethod installation
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parents: 9621
diff changeset
153 protected abstract Object debugScopeContext();
9620
0eda2b7df748 fixed debug scope processing so that -G:MethodFilter option works as expected
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parents: 9618
diff changeset
154
9418
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parents: 9417
diff changeset
155 /**
9200
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parents: 9015
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156 * Gets the code for this stub, compiling it first if necessary.
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parents:
diff changeset
157 */
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parents: 9015
diff changeset
158 public synchronized InstalledCode getCode(final Backend backend) {
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parents: 9015
diff changeset
159 if (code == null) {
13197
8569b9e047cd change debug scopes implementation to prevent extra frames related to mechanism being added to call stack
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parents: 12431
diff changeset
160 try (Scope d = Debug.sandbox("CompilingStub", DebugScope.getConfig(), providers.getCodeCache(), debugScopeContext())) {
8569b9e047cd change debug scopes implementation to prevent extra frames related to mechanism being added to call stack
Doug Simon <doug.simon@oracle.com>
parents: 12431
diff changeset
161 final StructuredGraph graph = getGraph();
19319
5664cadb3cee don't record method dependencies for snippets, stubs or replacements
Doug Simon <doug.simon@oracle.com>
parents: 19306
diff changeset
162
5664cadb3cee don't record method dependencies for snippets, stubs or replacements
Doug Simon <doug.simon@oracle.com>
parents: 19306
diff changeset
163 // Stubs cannot be recompiled so they cannot be compiled with
5664cadb3cee don't record method dependencies for snippets, stubs or replacements
Doug Simon <doug.simon@oracle.com>
parents: 19306
diff changeset
164 // assumptions and there is no point in recording evol_method dependencies
19306
a0a760b0fb5f pulled method evolution dependencies out of Assumptions and directly into StructuredGraph
Doug Simon <doug.simon@oracle.com>
parents: 19276
diff changeset
165 assert graph.getAssumptions() == null;
19346
2b392a92e27b made it explicit that a StructuredGraph only records method dependencies for inlined methods - the root method is not recorded as it is already available in the 'method' field
Doug Simon <doug.simon@oracle.com>
parents: 19319
diff changeset
166 assert !graph.isInlinedMethodRecordingEnabled() : graph;
19319
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parents: 19306
diff changeset
167
13197
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parents: 12431
diff changeset
168 if (!(graph.start() instanceof StubStartNode)) {
18845
f57d86eb036f removed Node factory methods
Doug Simon <doug.simon@oracle.com>
parents: 18176
diff changeset
169 StubStartNode newStart = graph.add(new StubStartNode(Stub.this));
13197
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diff changeset
170 newStart.setStateAfter(graph.start().stateAfter());
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diff changeset
171 graph.replaceFixed(graph.start(), newStart);
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diff changeset
172 }
9200
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diff changeset
173
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diff changeset
174 CodeCacheProvider codeCache = providers.getCodeCache();
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diff changeset
175 // The stub itself needs the incoming calling convention.
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diff changeset
176 CallingConvention incomingCc = linkage.getIncomingCallingConvention();
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parents: 14559
diff changeset
177 TargetDescription target = codeCache.getTarget();
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parents: 14559
diff changeset
178
16401
347915b8cea8 Move name from HotSpotNmethod to InstalledCode to have a name again for truffle nmethods.
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 16182
diff changeset
179 compResult = new CompilationResult(toString());
15011
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parents: 14559
diff changeset
180 try (Scope s0 = Debug.scope("StubCompilation", graph, providers.getCodeCache())) {
16458
162c6fba1168 start Stub compilation at mid tier
Lukas Stadler <lukas.stadler@oracle.com>
parents: 16401
diff changeset
181 Suites defaultSuites = providers.getSuites().getDefaultSuites();
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parents: 16401
diff changeset
182 Suites suites = new Suites(new PhaseSuite<>(), defaultSuites.getMidTier(), defaultSuites.getLowTier());
20068
cc3131ff7ce2 Remove GraphCache option.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 19916
diff changeset
183 SchedulePhase schedule = emitFrontEnd(providers, target, graph, providers.getSuites().getDefaultGraphBuilderSuite(), OptimisticOptimizations.ALL, getProfilingInfo(graph), null,
cc3131ff7ce2 Remove GraphCache option.
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parents: 19916
diff changeset
184 suites);
19916
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parents: 19346
diff changeset
185 LIRSuites lirSuites = createLIRSuites();
19276
313f9a9647e5 Merge (rename LowLevel{Phases,..} to LIR{Phases,..})
Josef Eisl <josef.eisl@jku.at>
parents: 19270 19253
diff changeset
186 emitBackEnd(graph, Stub.this, incomingCc, getInstalledCodeOwner(), backend, target, compResult, CompilationResultBuilderFactory.Default, schedule, getRegisterConfig(), lirSuites);
19253
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parents: 19250
diff changeset
187 } catch (Throwable e) {
15011
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Lukas Stadler <lukas.stadler@oracle.com>
parents: 14559
diff changeset
188 throw Debug.handle(e);
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parents: 14559
diff changeset
189 }
9200
9be78aeab2e1 temporaries are recorded for compiled stubs, allowing for better register allocation around calls to such stubs (GRAAL-210)
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parents: 9015
diff changeset
190
13197
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diff changeset
191 assert destroyedRegisters != null;
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Doug Simon <doug.simon@oracle.com>
parents: 12431
diff changeset
192 try (Scope s = Debug.scope("CodeInstall")) {
8569b9e047cd change debug scopes implementation to prevent extra frames related to mechanism being added to call stack
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parents: 12431
diff changeset
193 Stub stub = Stub.this;
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Doug Simon <doug.simon@oracle.com>
parents: 12431
diff changeset
194 HotSpotRuntimeStub installedCode = new HotSpotRuntimeStub(stub);
21526
1da7aef31a08 created com.oracle.graal.hotspot.jvmci package and moved classes destined for future JVMCI module into it (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents: 21414
diff changeset
195 HotSpotCompiledCode hsCompResult = new HotSpotCompiledRuntimeStub(compResult);
13233
8ea51438445c consolidated logging and dumping of InstalledCode to HotSpotCodeCacheProvider
Doug Simon <doug.simon@oracle.com>
parents: 13229
diff changeset
196
21414
b04f579c803f removed unnecessary CompilerToVM.CodeInstallResult enum (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents: 20068
diff changeset
197 HotSpotGraalRuntime runtime = runtime();
b04f579c803f removed unnecessary CompilerToVM.CodeInstallResult enum (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents: 20068
diff changeset
198 int result = runtime.getCompilerToVM().installCode(hsCompResult, installedCode, null);
b04f579c803f removed unnecessary CompilerToVM.CodeInstallResult enum (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents: 20068
diff changeset
199 HotSpotVMConfig config = runtime.getConfig();
b04f579c803f removed unnecessary CompilerToVM.CodeInstallResult enum (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents: 20068
diff changeset
200 if (result != config.codeInstallResultOk) {
b04f579c803f removed unnecessary CompilerToVM.CodeInstallResult enum (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents: 20068
diff changeset
201 throw new GraalInternalError("Error installing stub %s: %s", Stub.this, config.getCodeInstallResultDescription(result));
13197
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parents: 12431
diff changeset
202 }
13233
8ea51438445c consolidated logging and dumping of InstalledCode to HotSpotCodeCacheProvider
Doug Simon <doug.simon@oracle.com>
parents: 13229
diff changeset
203 ((HotSpotCodeCacheProvider) codeCache).logOrDump(installedCode, compResult);
13197
8569b9e047cd change debug scopes implementation to prevent extra frames related to mechanism being added to call stack
Doug Simon <doug.simon@oracle.com>
parents: 12431
diff changeset
204 code = installedCode;
8569b9e047cd change debug scopes implementation to prevent extra frames related to mechanism being added to call stack
Doug Simon <doug.simon@oracle.com>
parents: 12431
diff changeset
205 } catch (Throwable e) {
8569b9e047cd change debug scopes implementation to prevent extra frames related to mechanism being added to call stack
Doug Simon <doug.simon@oracle.com>
parents: 12431
diff changeset
206 throw Debug.handle(e);
7143
445193cc2a7d added support for writing stubs in Java and wrote the TLAB fast refill stub
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
207 }
13197
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Doug Simon <doug.simon@oracle.com>
parents: 12431
diff changeset
208 } catch (Throwable e) {
8569b9e047cd change debug scopes implementation to prevent extra frames related to mechanism being added to call stack
Doug Simon <doug.simon@oracle.com>
parents: 12431
diff changeset
209 throw Debug.handle(e);
8569b9e047cd change debug scopes implementation to prevent extra frames related to mechanism being added to call stack
Doug Simon <doug.simon@oracle.com>
parents: 12431
diff changeset
210 }
9617
c1ef2bf6848e removed the requirement that a compiled stub is implemented by a snippet
Doug Simon <doug.simon@oracle.com>
parents: 9615
diff changeset
211 assert code != null : "error installing stub " + this;
8627
75db7afee829 implemented lazy installation of replacements (GRAAL-137)
Doug Simon <doug.simon@oracle.com>
parents: 8422
diff changeset
212 }
16182
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bharadwaj
parents: 15259
diff changeset
213
9200
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parents: 9015
diff changeset
214 return code;
7143
445193cc2a7d added support for writing stubs in Java and wrote the TLAB fast refill stub
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
215 }
16182
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bharadwaj
parents: 15259
diff changeset
216
19916
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Josef Eisl <josef.eisl@jku.at>
parents: 19346
diff changeset
217 private LIRSuites createLIRSuites() {
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parents: 19346
diff changeset
218 LIRSuites lirSuites = new LIRSuites(providers.getSuites().getDefaultLIRSuites());
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Josef Eisl <josef.eisl@jku.at>
parents: 19346
diff changeset
219 ListIterator<LIRPhase<PostAllocationOptimizationContext>> moveProfiling = lirSuites.getPostAllocationOptimizationStage().findPhase(MoveProfiling.class);
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Josef Eisl <josef.eisl@jku.at>
parents: 19346
diff changeset
220 if (moveProfiling != null) {
fc1e46a702a1 Do not include MoveProfiling phases in stub compilation.
Josef Eisl <josef.eisl@jku.at>
parents: 19346
diff changeset
221 moveProfiling.remove();
fc1e46a702a1 Do not include MoveProfiling phases in stub compilation.
Josef Eisl <josef.eisl@jku.at>
parents: 19346
diff changeset
222 }
fc1e46a702a1 Do not include MoveProfiling phases in stub compilation.
Josef Eisl <josef.eisl@jku.at>
parents: 19346
diff changeset
223 return lirSuites;
fc1e46a702a1 Do not include MoveProfiling phases in stub compilation.
Josef Eisl <josef.eisl@jku.at>
parents: 19346
diff changeset
224 }
fc1e46a702a1 Do not include MoveProfiling phases in stub compilation.
Josef Eisl <josef.eisl@jku.at>
parents: 19346
diff changeset
225
16182
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bharadwaj
parents: 15259
diff changeset
226 /**
0a7e9347f8d0 Add an ability to specify the signature of a C/C++ foreign function in HotSpotVMConfig and get the full symbol string; add a couple of convenience getters and setters for stubs with foreign call linkage.
bharadwaj
parents: 15259
diff changeset
227 * Gets the compilation result for this stub, compiling it first if necessary, and installing it
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bharadwaj
parents: 15259
diff changeset
228 * in code.
0a7e9347f8d0 Add an ability to specify the signature of a C/C++ foreign function in HotSpotVMConfig and get the full symbol string; add a couple of convenience getters and setters for stubs with foreign call linkage.
bharadwaj
parents: 15259
diff changeset
229 */
0a7e9347f8d0 Add an ability to specify the signature of a C/C++ foreign function in HotSpotVMConfig and get the full symbol string; add a couple of convenience getters and setters for stubs with foreign call linkage.
bharadwaj
parents: 15259
diff changeset
230 public synchronized CompilationResult getCompilationResult(final Backend backend) {
0a7e9347f8d0 Add an ability to specify the signature of a C/C++ foreign function in HotSpotVMConfig and get the full symbol string; add a couple of convenience getters and setters for stubs with foreign call linkage.
bharadwaj
parents: 15259
diff changeset
231 if (code == null) {
0a7e9347f8d0 Add an ability to specify the signature of a C/C++ foreign function in HotSpotVMConfig and get the full symbol string; add a couple of convenience getters and setters for stubs with foreign call linkage.
bharadwaj
parents: 15259
diff changeset
232 getCode(backend);
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bharadwaj
parents: 15259
diff changeset
233 }
0a7e9347f8d0 Add an ability to specify the signature of a C/C++ foreign function in HotSpotVMConfig and get the full symbol string; add a couple of convenience getters and setters for stubs with foreign call linkage.
bharadwaj
parents: 15259
diff changeset
234 return compResult;
0a7e9347f8d0 Add an ability to specify the signature of a C/C++ foreign function in HotSpotVMConfig and get the full symbol string; add a couple of convenience getters and setters for stubs with foreign call linkage.
bharadwaj
parents: 15259
diff changeset
235 }
7143
445193cc2a7d added support for writing stubs in Java and wrote the TLAB fast refill stub
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
236 }