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annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotForeignCallsProviderImpl.java @ 23348:9306a9611097

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Update JVMCI import: Make CallingConvention.Type extensible; remove unused stackOnly parameter
author Christian Wimmer <christian.wimmer@oracle.com>
date Thu, 21 Jan 2016 14:24:24 -0800
parents f0dad49ca665
children
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1 /*
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2 * Copyright (c) 2013, 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.meta;
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24
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25 import static com.oracle.graal.hotspot.HotSpotForeignCallLinkage.RegisterEffect.PRESERVES_REGISTERS;
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26 import static com.oracle.graal.hotspot.HotSpotForeignCallLinkage.Transition.SAFEPOINT;
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27 import static jdk.vm.ci.hotspot.HotSpotCallingConventionType.JavaCall;
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28 import static jdk.vm.ci.hotspot.HotSpotCallingConventionType.JavaCallee;
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30 import java.util.HashMap;
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31 import java.util.Map;
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32
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33 import jdk.vm.ci.code.CallingConvention;
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34 import jdk.vm.ci.code.CodeCacheProvider;
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35 import jdk.vm.ci.hotspot.HotSpotJVMCIRuntimeProvider;
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36 import jdk.vm.ci.meta.LocationIdentity;
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37 import jdk.vm.ci.meta.MetaAccessProvider;
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38
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39 import com.oracle.graal.compiler.common.spi.ForeignCallDescriptor;
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40 import com.oracle.graal.hotspot.HotSpotForeignCallLinkage;
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41 import com.oracle.graal.hotspot.HotSpotForeignCallLinkage.RegisterEffect;
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42 import com.oracle.graal.hotspot.HotSpotForeignCallLinkage.Transition;
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43 import com.oracle.graal.hotspot.HotSpotForeignCallLinkageImpl;
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44 import com.oracle.graal.hotspot.HotSpotGraalRuntimeProvider;
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45 import com.oracle.graal.hotspot.stubs.ForeignCallStub;
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46 import com.oracle.graal.hotspot.stubs.Stub;
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47 import com.oracle.graal.word.Word;
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48
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49 /**
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50 * HotSpot implementation of {@link HotSpotForeignCallsProvider}.
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51 */
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52 public abstract class HotSpotForeignCallsProviderImpl implements HotSpotForeignCallsProvider {
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53
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54 public static final ForeignCallDescriptor OSR_MIGRATION_END = new ForeignCallDescriptor("OSR_migration_end", void.class, long.class);
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55 public static final ForeignCallDescriptor IDENTITY_HASHCODE = new ForeignCallDescriptor("identity_hashcode", int.class, Object.class);
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56 public static final ForeignCallDescriptor VERIFY_OOP = new ForeignCallDescriptor("verify_oop", Object.class, Object.class);
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57 public static final ForeignCallDescriptor LOAD_AND_CLEAR_EXCEPTION = new ForeignCallDescriptor("load_and_clear_exception", Object.class, Word.class);
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58
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59 public static final ForeignCallDescriptor TEST_DEOPTIMIZE_CALL_INT = new ForeignCallDescriptor("test_deoptimize_call_int", int.class, int.class);
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60
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61 protected final HotSpotJVMCIRuntimeProvider jvmciRuntime;
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62 protected final HotSpotGraalRuntimeProvider runtime;
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63
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64 protected final Map<ForeignCallDescriptor, HotSpotForeignCallLinkage> foreignCalls = new HashMap<>();
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65 protected final MetaAccessProvider metaAccess;
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66 protected final CodeCacheProvider codeCache;
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67
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68 public HotSpotForeignCallsProviderImpl(HotSpotJVMCIRuntimeProvider jvmciRuntime, HotSpotGraalRuntimeProvider runtime, MetaAccessProvider metaAccess, CodeCacheProvider codeCache) {
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69 this.jvmciRuntime = jvmciRuntime;
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70 this.runtime = runtime;
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71 this.metaAccess = metaAccess;
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72 this.codeCache = codeCache;
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73 }
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74
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75 /**
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76 * Registers the linkage for a foreign call.
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77 */
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78 public HotSpotForeignCallLinkage register(HotSpotForeignCallLinkage linkage) {
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79 assert !foreignCalls.containsKey(linkage.getDescriptor()) : "already registered linkage for " + linkage.getDescriptor();
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80 foreignCalls.put(linkage.getDescriptor(), linkage);
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81 return linkage;
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82 }
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83
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84 /**
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85 * Creates and registers the details for linking a foreign call to a {@link Stub}.
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86 *
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87 * @param descriptor the signature of the call to the stub
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88 * @param reexecutable specifies if the stub call can be re-executed without (meaningful) side
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89 * effects. Deoptimization will not return to a point before a stub call that cannot
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90 * be re-executed.
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91 * @param transition specifies if this is a {@linkplain Transition#LEAF leaf} call
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92 * @param killedLocations the memory locations killed by the stub call
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93 */
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94 public HotSpotForeignCallLinkage registerStubCall(ForeignCallDescriptor descriptor, boolean reexecutable, Transition transition, LocationIdentity... killedLocations) {
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95 return register(HotSpotForeignCallLinkageImpl.create(metaAccess, codeCache, this, descriptor, 0L, PRESERVES_REGISTERS, JavaCall, JavaCallee, transition, reexecutable, killedLocations));
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96 }
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97
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98 /**
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99 * Creates and registers the linkage for a foreign call.
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100 *
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101 * @param descriptor the signature of the foreign call
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102 * @param address the address of the code to call
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103 * @param outgoingCcType outgoing (caller) calling convention type
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104 * @param effect specifies if the call destroys or preserves all registers (apart from
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105 * temporaries which are always destroyed)
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106 * @param transition specifies if this is a {@linkplain Transition#LEAF leaf} call
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107 * @param reexecutable specifies if the foreign call can be re-executed without (meaningful)
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108 * side effects. Deoptimization will not return to a point before a foreign call that
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109 * cannot be re-executed.
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110 * @param killedLocations the memory locations killed by the foreign call
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111 */
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112 public HotSpotForeignCallLinkage registerForeignCall(ForeignCallDescriptor descriptor, long address, CallingConvention.Type outgoingCcType, RegisterEffect effect, Transition transition,
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113 boolean reexecutable, LocationIdentity... killedLocations) {
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114 Class<?> resultType = descriptor.getResultType();
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115 assert address != 0;
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116 assert transition != SAFEPOINT || resultType.isPrimitive() || Word.class.isAssignableFrom(resultType) : "non-leaf foreign calls must return objects in thread local storage: " + descriptor;
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117 return register(HotSpotForeignCallLinkageImpl.create(metaAccess, codeCache, this, descriptor, address, effect, outgoingCcType, null, transition, reexecutable, killedLocations));
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118 }
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119
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120 /**
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121 * Creates a {@linkplain ForeignCallStub stub} for a foreign call.
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122 *
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123 * @param descriptor the signature of the call to the stub
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124 * @param address the address of the foreign code to call
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125 * @param prependThread true if the JavaThread value for the current thread is to be prepended
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126 * to the arguments for the call to {@code address}
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127 * @param transition specifies if this is a {@linkplain Transition#LEAF leaf} call
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128 * @param reexecutable specifies if the foreign call can be re-executed without (meaningful)
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129 * side effects. Deoptimization will not return to a point before a foreign call that
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130 * cannot be re-executed.
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131 * @param killedLocations the memory locations killed by the foreign call
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132 */
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133 public void linkForeignCall(HotSpotProviders providers, ForeignCallDescriptor descriptor, long address, boolean prependThread, Transition transition, boolean reexecutable,
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134 LocationIdentity... killedLocations) {
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135 ForeignCallStub stub = new ForeignCallStub(jvmciRuntime, providers, address, descriptor, prependThread, transition, reexecutable, killedLocations);
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136 HotSpotForeignCallLinkage linkage = stub.getLinkage();
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137 HotSpotForeignCallLinkage targetLinkage = stub.getTargetLinkage();
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138 linkage.setCompiledStub(stub);
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139 register(linkage);
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140 register(targetLinkage);
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141 }
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142
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143 public static final boolean PREPEND_THREAD = true;
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144 public static final boolean DONT_PREPEND_THREAD = !PREPEND_THREAD;
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145
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146 public static final boolean REEXECUTABLE = true;
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147 public static final boolean NOT_REEXECUTABLE = !REEXECUTABLE;
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148
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149 public static final LocationIdentity[] NO_LOCATIONS = {};
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150
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151 public HotSpotForeignCallLinkage lookupForeignCall(ForeignCallDescriptor descriptor) {
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152 assert foreignCalls != null : descriptor;
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153 HotSpotForeignCallLinkage callTarget = foreignCalls.get(descriptor);
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154 callTarget.finalizeAddress(runtime.getHostBackend());
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155 return callTarget;
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156 }
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157
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158 @Override
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159 public boolean isReexecutable(ForeignCallDescriptor descriptor) {
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160 assert foreignCalls.containsKey(descriptor) : "unknown foreign call: " + descriptor;
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161 return foreignCalls.get(descriptor).isReexecutable();
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162 }
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163
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164 public boolean canDeoptimize(ForeignCallDescriptor descriptor) {
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165 assert foreignCalls.containsKey(descriptor) : "unknown foreign call: " + descriptor;
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166 return foreignCalls.get(descriptor).needsDebugInfo();
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167 }
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168
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169 public boolean isGuaranteedSafepoint(ForeignCallDescriptor descriptor) {
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170 assert foreignCalls.containsKey(descriptor) : "unknown foreign call: " + descriptor;
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171 return foreignCalls.get(descriptor).isGuaranteedSafepoint();
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172 }
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173
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174 public LocationIdentity[] getKilledLocations(ForeignCallDescriptor descriptor) {
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175 assert foreignCalls.containsKey(descriptor) : "unknown foreign call: " + descriptor;
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176 return foreignCalls.get(descriptor).getKilledLocations();
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177 }
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178 }