1 /* 2 * Copyright (c) 2012, 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 25 package org.graalvm.compiler.hotspot; 26 27 import java.util.EnumSet; 28 29 import jdk.internal.vm.compiler.collections.EconomicMap; 30 import jdk.internal.vm.compiler.collections.EconomicSet; 31 import jdk.internal.vm.compiler.collections.Equivalence; 32 import jdk.internal.vm.compiler.collections.MapCursor; 33 import org.graalvm.compiler.code.CompilationResult; 34 import org.graalvm.compiler.core.common.CompilationIdentifier; 35 import org.graalvm.compiler.core.common.cfg.AbstractBlockBase; 36 import org.graalvm.compiler.core.common.spi.ForeignCallDescriptor; 37 import org.graalvm.compiler.core.common.spi.ForeignCallLinkage; 38 import org.graalvm.compiler.core.target.Backend; 39 import org.graalvm.compiler.graph.Node.ConstantNodeParameter; 40 import org.graalvm.compiler.graph.Node.NodeIntrinsic; 41 import org.graalvm.compiler.hotspot.meta.HotSpotProviders; 42 import org.graalvm.compiler.hotspot.nodes.VMErrorNode; 43 import org.graalvm.compiler.hotspot.nodes.aot.ResolveConstantStubCall; 44 import org.graalvm.compiler.hotspot.replacements.AESCryptSubstitutions; 45 import org.graalvm.compiler.hotspot.replacements.BigIntegerSubstitutions; 46 import org.graalvm.compiler.hotspot.replacements.CipherBlockChainingSubstitutions; 47 import org.graalvm.compiler.hotspot.replacements.SHA2Substitutions; 48 import org.graalvm.compiler.hotspot.replacements.SHA5Substitutions; 49 import org.graalvm.compiler.hotspot.replacements.SHASubstitutions; 50 import org.graalvm.compiler.hotspot.stubs.ExceptionHandlerStub; 51 import org.graalvm.compiler.hotspot.stubs.Stub; 52 import org.graalvm.compiler.hotspot.stubs.UnwindExceptionToCallerStub; 53 import org.graalvm.compiler.hotspot.word.KlassPointer; 54 import org.graalvm.compiler.hotspot.word.MethodCountersPointer; 55 import org.graalvm.compiler.lir.LIR; 56 import org.graalvm.compiler.lir.LIRFrameState; 57 import org.graalvm.compiler.lir.LIRInstruction; 58 import org.graalvm.compiler.lir.LIRInstruction.OperandFlag; 59 import org.graalvm.compiler.lir.LIRInstruction.OperandMode; 60 import org.graalvm.compiler.lir.StandardOp.LabelOp; 61 import org.graalvm.compiler.lir.StandardOp.SaveRegistersOp; 62 import org.graalvm.compiler.lir.ValueConsumer; 63 import org.graalvm.compiler.lir.asm.CompilationResultBuilder; 64 import org.graalvm.compiler.lir.framemap.FrameMap; 65 import org.graalvm.compiler.nodes.UnwindNode; 66 import org.graalvm.compiler.nodes.extended.ForeignCallNode; 67 import org.graalvm.compiler.options.Option; 68 import org.graalvm.compiler.options.OptionKey; 69 import org.graalvm.compiler.options.OptionType; 70 import org.graalvm.compiler.options.OptionValues; 71 import org.graalvm.compiler.phases.tiers.SuitesProvider; 72 import org.graalvm.compiler.word.Word; 73 import jdk.internal.vm.compiler.word.Pointer; 74 75 import jdk.vm.ci.code.CompilationRequest; 76 import jdk.vm.ci.code.CompiledCode; 77 import jdk.vm.ci.code.Register; 78 import jdk.vm.ci.code.RegisterSaveLayout; 79 import jdk.vm.ci.code.StackSlot; 80 import jdk.vm.ci.code.ValueUtil; 81 import jdk.vm.ci.hotspot.HotSpotCompilationRequest; 82 import jdk.vm.ci.hotspot.HotSpotJVMCIRuntime; 83 import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod; 84 import jdk.vm.ci.meta.ResolvedJavaMethod; 85 import jdk.vm.ci.meta.Value; 86 import jdk.vm.ci.runtime.JVMCICompiler; 87 88 /** 89 * HotSpot specific backend. 90 */ 91 public abstract class HotSpotBackend extends Backend implements FrameMap.ReferenceMapBuilderFactory { 92 93 public static class Options { 94 // @formatter:off 95 @Option(help = "Use Graal arithmetic stubs instead of HotSpot stubs where possible") 96 public static final OptionKey<Boolean> GraalArithmeticStubs = new OptionKey<>(false); // GR-8276 97 @Option(help = "Enables instruction profiling on assembler level. Valid values are a comma separated list of supported instructions." + 98 " Compare with subclasses of Assembler.InstructionCounter.", type = OptionType.Debug) 99 public static final OptionKey<String> ASMInstructionProfiling = new OptionKey<>(null); 100 // @formatter:on 101 } 102 103 /** 104 * Descriptor for {@link ExceptionHandlerStub}. This stub is called by the 105 * {@linkplain GraalHotSpotVMConfig#MARKID_EXCEPTION_HANDLER_ENTRY exception handler} in a 106 * compiled method. 107 */ 108 public static final ForeignCallDescriptor EXCEPTION_HANDLER = new ForeignCallDescriptor("exceptionHandler", void.class, Object.class, Word.class); 109 110 /** 111 * Descriptor for SharedRuntime::get_ic_miss_stub(). 112 */ 113 public static final ForeignCallDescriptor IC_MISS_HANDLER = new ForeignCallDescriptor("icMissHandler", void.class); 114 115 /** 116 * Descriptor for SharedRuntime::get_handle_wrong_method_stub(). 117 */ 118 public static final ForeignCallDescriptor WRONG_METHOD_HANDLER = new ForeignCallDescriptor("wrongMethodHandler", void.class); 119 120 /** 121 * Descriptor for {@link UnwindExceptionToCallerStub}. This stub is called by code generated 122 * from {@link UnwindNode}. 123 */ 124 public static final ForeignCallDescriptor UNWIND_EXCEPTION_TO_CALLER = new ForeignCallDescriptor("unwindExceptionToCaller", void.class, Object.class, Word.class); 125 126 /** 127 * Descriptor for the arguments when unwinding to an exception handler in a caller. 128 */ 129 public static final ForeignCallDescriptor EXCEPTION_HANDLER_IN_CALLER = new ForeignCallDescriptor("exceptionHandlerInCaller", void.class, Object.class, Word.class); 130 131 private final HotSpotGraalRuntimeProvider runtime; 132 133 /** 134 * @see AESCryptSubstitutions#encryptBlockStub(ForeignCallDescriptor, Word, Word, Pointer) 135 */ 136 public static final ForeignCallDescriptor ENCRYPT_BLOCK = new ForeignCallDescriptor("encrypt_block", void.class, Word.class, Word.class, Pointer.class); 137 138 /** 139 * @see AESCryptSubstitutions#decryptBlockStub(ForeignCallDescriptor, Word, Word, Pointer) 140 */ 141 public static final ForeignCallDescriptor DECRYPT_BLOCK = new ForeignCallDescriptor("decrypt_block", void.class, Word.class, Word.class, Pointer.class); 142 143 /** 144 * @see AESCryptSubstitutions#decryptBlockStub(ForeignCallDescriptor, Word, Word, Pointer) 145 */ 146 public static final ForeignCallDescriptor DECRYPT_BLOCK_WITH_ORIGINAL_KEY = new ForeignCallDescriptor("decrypt_block_with_original_key", void.class, Word.class, Word.class, Pointer.class, 147 Pointer.class); 148 149 /** 150 * @see CipherBlockChainingSubstitutions#crypt 151 */ 152 public static final ForeignCallDescriptor ENCRYPT = new ForeignCallDescriptor("encrypt", void.class, Word.class, Word.class, Pointer.class, Pointer.class, int.class); 153 154 /** 155 * @see CipherBlockChainingSubstitutions#crypt 156 */ 157 public static final ForeignCallDescriptor DECRYPT = new ForeignCallDescriptor("decrypt", void.class, Word.class, Word.class, Pointer.class, Pointer.class, int.class); 158 159 /** 160 * @see CipherBlockChainingSubstitutions#crypt 161 */ 162 public static final ForeignCallDescriptor DECRYPT_WITH_ORIGINAL_KEY = new ForeignCallDescriptor("decrypt_with_original_key", void.class, Word.class, Word.class, Pointer.class, Pointer.class, 163 int.class, Pointer.class); 164 165 /** 166 * @see BigIntegerSubstitutions#multiplyToLen 167 */ 168 public static final ForeignCallDescriptor MULTIPLY_TO_LEN = new ForeignCallDescriptor("multiplyToLen", void.class, Word.class, int.class, Word.class, int.class, Word.class, int.class); 169 170 public static void multiplyToLenStub(Word xAddr, int xlen, Word yAddr, int ylen, Word zAddr, int zLen) { 171 multiplyToLenStub(HotSpotBackend.MULTIPLY_TO_LEN, xAddr, xlen, yAddr, ylen, zAddr, zLen); 172 } 173 174 @NodeIntrinsic(ForeignCallNode.class) 175 private static native void multiplyToLenStub(@ConstantNodeParameter ForeignCallDescriptor descriptor, Word xIn, int xLen, Word yIn, int yLen, Word zIn, int zLen); 176 177 /** 178 * @see BigIntegerSubstitutions#mulAdd 179 */ 180 public static final ForeignCallDescriptor MUL_ADD = new ForeignCallDescriptor("mulAdd", int.class, Word.class, Word.class, int.class, int.class, int.class); 181 182 public static int mulAddStub(Word inAddr, Word outAddr, int newOffset, int len, int k) { 183 return mulAddStub(HotSpotBackend.MUL_ADD, inAddr, outAddr, newOffset, len, k); 184 } 185 186 @NodeIntrinsic(ForeignCallNode.class) 187 private static native int mulAddStub(@ConstantNodeParameter ForeignCallDescriptor descriptor, Word inAddr, Word outAddr, int newOffset, int len, int k); 188 189 /** 190 * @see BigIntegerSubstitutions#implMontgomeryMultiply 191 */ 192 public static final ForeignCallDescriptor MONTGOMERY_MULTIPLY = new ForeignCallDescriptor("implMontgomeryMultiply", void.class, Word.class, Word.class, Word.class, int.class, long.class, 193 Word.class); 194 195 public static void implMontgomeryMultiply(Word aAddr, Word bAddr, Word nAddr, int len, long inv, Word productAddr) { 196 implMontgomeryMultiply(HotSpotBackend.MONTGOMERY_MULTIPLY, aAddr, bAddr, nAddr, len, inv, productAddr); 197 } 198 199 @NodeIntrinsic(ForeignCallNode.class) 200 private static native void implMontgomeryMultiply(@ConstantNodeParameter ForeignCallDescriptor descriptor, Word aAddr, Word bAddr, Word nAddr, int len, long inv, Word productAddr); 201 202 /** 203 * @see BigIntegerSubstitutions#implMontgomerySquare 204 */ 205 public static final ForeignCallDescriptor MONTGOMERY_SQUARE = new ForeignCallDescriptor("implMontgomerySquare", void.class, Word.class, Word.class, int.class, long.class, Word.class); 206 207 public static void implMontgomerySquare(Word aAddr, Word nAddr, int len, long inv, Word productAddr) { 208 implMontgomerySquare(HotSpotBackend.MONTGOMERY_SQUARE, aAddr, nAddr, len, inv, productAddr); 209 } 210 211 @NodeIntrinsic(ForeignCallNode.class) 212 private static native void implMontgomerySquare(@ConstantNodeParameter ForeignCallDescriptor descriptor, Word aAddr, Word nAddr, int len, long inv, Word productAddr); 213 214 /** 215 * @see BigIntegerSubstitutions#implSquareToLen 216 */ 217 public static final ForeignCallDescriptor SQUARE_TO_LEN = new ForeignCallDescriptor("implSquareToLen", void.class, Word.class, int.class, Word.class, int.class); 218 219 public static void implSquareToLen(Word xAddr, int len, Word zAddr, int zLen) { 220 implSquareToLen(SQUARE_TO_LEN, xAddr, len, zAddr, zLen); 221 } 222 223 @NodeIntrinsic(ForeignCallNode.class) 224 private static native void implSquareToLen(@ConstantNodeParameter ForeignCallDescriptor descriptor, Word xAddr, int len, Word zAddr, int zLen); 225 226 /** 227 * @see SHASubstitutions#implCompress0 228 */ 229 public static final ForeignCallDescriptor SHA_IMPL_COMPRESS = new ForeignCallDescriptor("shaImplCompress", void.class, Word.class, Object.class); 230 231 public static void shaImplCompressStub(Word bufAddr, Object state) { 232 shaImplCompressStub(HotSpotBackend.SHA_IMPL_COMPRESS, bufAddr, state); 233 } 234 235 @NodeIntrinsic(ForeignCallNode.class) 236 private static native void shaImplCompressStub(@ConstantNodeParameter ForeignCallDescriptor descriptor, Word bufAddr, Object state); 237 238 /** 239 * @see SHA2Substitutions#implCompress0 240 */ 241 public static final ForeignCallDescriptor SHA2_IMPL_COMPRESS = new ForeignCallDescriptor("sha2ImplCompress", void.class, Word.class, Object.class); 242 243 public static void sha2ImplCompressStub(Word bufAddr, Object state) { 244 sha2ImplCompressStub(HotSpotBackend.SHA2_IMPL_COMPRESS, bufAddr, state); 245 } 246 247 @NodeIntrinsic(ForeignCallNode.class) 248 private static native void sha2ImplCompressStub(@ConstantNodeParameter ForeignCallDescriptor descriptor, Word bufAddr, Object state); 249 250 /** 251 * @see SHA5Substitutions#implCompress0 252 */ 253 public static final ForeignCallDescriptor SHA5_IMPL_COMPRESS = new ForeignCallDescriptor("sha5ImplCompress", void.class, Word.class, Object.class); 254 255 public static void sha5ImplCompressStub(Word bufAddr, Object state) { 256 sha5ImplCompressStub(HotSpotBackend.SHA5_IMPL_COMPRESS, bufAddr, state); 257 } 258 259 @NodeIntrinsic(ForeignCallNode.class) 260 private static native void sha5ImplCompressStub(@ConstantNodeParameter ForeignCallDescriptor descriptor, Word bufAddr, Object state); 261 262 /** 263 * @see org.graalvm.compiler.hotspot.meta.HotSpotUnsafeSubstitutions#copyMemory 264 */ 265 public static final ForeignCallDescriptor UNSAFE_ARRAYCOPY = new ForeignCallDescriptor("unsafe_arraycopy", void.class, Word.class, Word.class, Word.class); 266 267 public static void unsafeArraycopy(Word srcAddr, Word dstAddr, Word size) { 268 unsafeArraycopyStub(HotSpotBackend.UNSAFE_ARRAYCOPY, srcAddr, dstAddr, size); 269 } 270 271 public static final ForeignCallDescriptor GENERIC_ARRAYCOPY = new ForeignCallDescriptor("generic_arraycopy", int.class, Word.class, int.class, Word.class, int.class, int.class); 272 273 @NodeIntrinsic(ForeignCallNode.class) 274 private static native void unsafeArraycopyStub(@ConstantNodeParameter ForeignCallDescriptor descriptor, Word srcAddr, Word dstAddr, Word size); 275 276 /** 277 * @see VMErrorNode 278 */ 279 public static final ForeignCallDescriptor VM_ERROR = new ForeignCallDescriptor("vm_error", void.class, Object.class, Object.class, long.class); 280 281 /** 282 * New multi array stub that throws an {@link OutOfMemoryError} on allocation failure. 283 */ 284 public static final ForeignCallDescriptor NEW_MULTI_ARRAY = new ForeignCallDescriptor("new_multi_array", Object.class, KlassPointer.class, int.class, Word.class); 285 286 /** 287 * New multi array stub that will return null on allocation failure. 288 */ 289 public static final ForeignCallDescriptor NEW_MULTI_ARRAY_OR_NULL = new ForeignCallDescriptor("new_multi_array_or_null", Object.class, KlassPointer.class, int.class, Word.class); 290 291 /** 292 * New array stub that throws an {@link OutOfMemoryError} on allocation failure. 293 */ 294 public static final ForeignCallDescriptor NEW_ARRAY = new ForeignCallDescriptor("new_array", Object.class, KlassPointer.class, int.class); 295 296 /** 297 * New array stub that will return null on allocation failure. 298 */ 299 public static final ForeignCallDescriptor NEW_ARRAY_OR_NULL = new ForeignCallDescriptor("new_array_or_null", Object.class, KlassPointer.class, int.class); 300 301 /** 302 * New instance stub that throws an {@link OutOfMemoryError} on allocation failure. 303 */ 304 public static final ForeignCallDescriptor NEW_INSTANCE = new ForeignCallDescriptor("new_instance", Object.class, KlassPointer.class); 305 306 /** 307 * New instance stub that will return null on allocation failure. 308 */ 309 public static final ForeignCallDescriptor NEW_INSTANCE_OR_NULL = new ForeignCallDescriptor("new_instance_or_null", Object.class, KlassPointer.class); 310 311 /** 312 * @see ResolveConstantStubCall 313 */ 314 public static final ForeignCallDescriptor RESOLVE_STRING_BY_SYMBOL = new ForeignCallDescriptor("resolve_string_by_symbol", Object.class, Word.class, Word.class); 315 316 /** 317 * @see ResolveConstantStubCall 318 */ 319 public static final ForeignCallDescriptor RESOLVE_DYNAMIC_INVOKE = new ForeignCallDescriptor("resolve_dynamic_invoke", Object.class, Word.class); 320 321 /** 322 * @see ResolveConstantStubCall 323 */ 324 public static final ForeignCallDescriptor RESOLVE_KLASS_BY_SYMBOL = new ForeignCallDescriptor("resolve_klass_by_symbol", Word.class, Word.class, Word.class); 325 326 /** 327 * @see ResolveConstantStubCall 328 */ 329 public static final ForeignCallDescriptor INITIALIZE_KLASS_BY_SYMBOL = new ForeignCallDescriptor("initialize_klass_by_symbol", Word.class, Word.class, Word.class); 330 331 /** 332 * @see ResolveConstantStubCall 333 */ 334 public static final ForeignCallDescriptor RESOLVE_METHOD_BY_SYMBOL_AND_LOAD_COUNTERS = new ForeignCallDescriptor("resolve_method_by_symbol_and_load_counters", Word.class, Word.class, Word.class, 335 Word.class); 336 337 /** 338 * Tiered support. 339 */ 340 public static final ForeignCallDescriptor INVOCATION_EVENT = new ForeignCallDescriptor("invocation_event", void.class, MethodCountersPointer.class); 341 public static final ForeignCallDescriptor BACKEDGE_EVENT = new ForeignCallDescriptor("backedge_event", void.class, MethodCountersPointer.class, int.class, int.class); 342 343 public HotSpotBackend(HotSpotGraalRuntimeProvider runtime, HotSpotProviders providers) { 344 super(providers); 345 this.runtime = runtime; 346 } 347 348 public HotSpotGraalRuntimeProvider getRuntime() { 349 return runtime; 350 } 351 352 /** 353 * Performs any remaining initialization that was deferred until the {@linkplain #getRuntime() 354 * runtime} object was initialized and this backend was registered with it. 355 * 356 * @param jvmciRuntime 357 * @param options 358 */ 359 public void completeInitialization(HotSpotJVMCIRuntime jvmciRuntime, OptionValues options) { 360 } 361 362 /** 363 * Finds all the registers that are defined by some given LIR. 364 * 365 * @param lir the LIR to examine 366 * @return the registers that are defined by or used as temps for any instruction in {@code lir} 367 */ 368 protected final EconomicSet<Register> gatherDestroyedCallerRegisters(LIR lir) { 369 final EconomicSet<Register> destroyedRegisters = EconomicSet.create(Equivalence.IDENTITY); 370 ValueConsumer defConsumer = new ValueConsumer() { 371 372 @Override 373 public void visitValue(Value value, OperandMode mode, EnumSet<OperandFlag> flags) { 374 if (ValueUtil.isRegister(value)) { 375 final Register reg = ValueUtil.asRegister(value); 376 destroyedRegisters.add(reg); 377 } 378 } 379 }; 380 for (AbstractBlockBase<?> block : lir.codeEmittingOrder()) { 381 if (block == null) { 382 continue; 383 } 384 for (LIRInstruction op : lir.getLIRforBlock(block)) { 385 if (op instanceof LabelOp) { 386 // Don't consider this as a definition 387 } else { 388 op.visitEachTemp(defConsumer); 389 op.visitEachOutput(defConsumer); 390 } 391 } 392 } 393 return translateToCallerRegisters(destroyedRegisters); 394 } 395 396 /** 397 * Updates a given stub with respect to the registers it destroys. 398 * <p> 399 * Any entry in {@code calleeSaveInfo} that {@linkplain SaveRegistersOp#supportsRemove() 400 * supports} pruning will have {@code destroyedRegisters} 401 * {@linkplain SaveRegistersOp#remove(EconomicSet) removed} as these registers are declared as 402 * temporaries in the stub's {@linkplain ForeignCallLinkage linkage} (and thus will be saved by 403 * the stub's caller). 404 * 405 * @param stub the stub to update 406 * @param destroyedRegisters the registers destroyed by the stub 407 * @param calleeSaveInfo a map from debug infos to the operations that provide their 408 * {@linkplain RegisterSaveLayout callee-save information} 409 * @param frameMap used to {@linkplain FrameMap#offsetForStackSlot(StackSlot) convert} a virtual 410 * slot to a frame slot index 411 */ 412 protected void updateStub(Stub stub, EconomicSet<Register> destroyedRegisters, EconomicMap<LIRFrameState, SaveRegistersOp> calleeSaveInfo, FrameMap frameMap) { 413 stub.initDestroyedCallerRegisters(destroyedRegisters); 414 415 MapCursor<LIRFrameState, SaveRegistersOp> cursor = calleeSaveInfo.getEntries(); 416 while (cursor.advance()) { 417 SaveRegistersOp save = cursor.getValue(); 418 if (save.supportsRemove()) { 419 save.remove(destroyedRegisters); 420 } 421 if (cursor.getKey() != LIRFrameState.NO_STATE) { 422 cursor.getKey().debugInfo().setCalleeSaveInfo(save.getMap(frameMap)); 423 } 424 } 425 } 426 427 @Override 428 public HotSpotProviders getProviders() { 429 return (HotSpotProviders) super.getProviders(); 430 } 431 432 @Override 433 public SuitesProvider getSuites() { 434 return getProviders().getSuites(); 435 } 436 437 protected void profileInstructions(LIR lir, CompilationResultBuilder crb) { 438 if (HotSpotBackend.Options.ASMInstructionProfiling.getValue(lir.getOptions()) != null) { 439 HotSpotInstructionProfiling.countInstructions(lir, crb.asm); 440 } 441 } 442 443 @Override 444 public CompiledCode createCompiledCode(ResolvedJavaMethod method, 445 CompilationRequest compilationRequest, 446 CompilationResult compResult, 447 boolean isDefault, 448 OptionValues options) { 449 assert !isDefault || compResult.getName() == null : "a default nmethod should have a null name since it is associated with a Method*"; 450 HotSpotCompilationRequest compRequest = compilationRequest instanceof HotSpotCompilationRequest ? (HotSpotCompilationRequest) compilationRequest : null; 451 return HotSpotCompiledCodeBuilder.createCompiledCode(getCodeCache(), method, compRequest, compResult, options); 452 } 453 454 @Override 455 public CompilationIdentifier getCompilationIdentifier(ResolvedJavaMethod resolvedJavaMethod) { 456 if (resolvedJavaMethod instanceof HotSpotResolvedJavaMethod) { 457 HotSpotCompilationRequest request = new HotSpotCompilationRequest((HotSpotResolvedJavaMethod) resolvedJavaMethod, JVMCICompiler.INVOCATION_ENTRY_BCI, 0L); 458 return new HotSpotCompilationIdentifier(request); 459 } 460 return super.getCompilationIdentifier(resolvedJavaMethod); 461 } 462 }