246 profileInstructions(lir, crb);
247 }
248
249 /**
250 * Emits the code prior to the verified entry point.
251 *
252 * @param installedCodeOwner see {@link LIRGenerationProvider#emitCode}
253 */
254 public void emitCodePrefix(ResolvedJavaMethod installedCodeOwner, CompilationResultBuilder crb, AMD64MacroAssembler asm, RegisterConfig regConfig, Label verifiedEntry) {
255 HotSpotProviders providers = getProviders();
256 if (installedCodeOwner != null && !installedCodeOwner.isStatic()) {
257 crb.recordMark(config.MARKID_UNVERIFIED_ENTRY);
258 CallingConvention cc = regConfig.getCallingConvention(HotSpotCallingConventionType.JavaCallee, null, new JavaType[]{providers.getMetaAccess().lookupJavaType(Object.class)}, this);
259 Register inlineCacheKlass = rax; // see definition of IC_Klass in
260 // c1_LIRAssembler_x86.cpp
261 Register receiver = asRegister(cc.getArgument(0));
262 AMD64Address src = new AMD64Address(receiver, config.hubOffset);
263
264 if (config.useCompressedClassPointers) {
265 Register register = r10;
266 AMD64HotSpotMove.decodeKlassPointer(crb, asm, register, providers.getRegisters().getHeapBaseRegister(), src, config);
267 if (GeneratePIC.getValue(crb.getOptions())) {
268 asm.movq(providers.getRegisters().getHeapBaseRegister(), asm.getPlaceholder(-1));
269 crb.recordMark(config.MARKID_NARROW_OOP_BASE_ADDRESS);
270 } else {
271 if (config.narrowKlassBase != 0) {
272 // The heap base register was destroyed above, so restore it
273 asm.movq(providers.getRegisters().getHeapBaseRegister(), config.narrowOopBase);
274 }
275 }
276 asm.cmpq(inlineCacheKlass, register);
277 } else {
278 asm.cmpq(inlineCacheKlass, src);
279 }
280 AMD64Call.directConditionalJmp(crb, asm, getForeignCalls().lookupForeignCall(IC_MISS_HANDLER), ConditionFlag.NotEqual);
281 }
282
283 asm.align(config.codeEntryAlignment);
284 crb.recordMark(config.MARKID_OSR_ENTRY);
285 asm.bind(verifiedEntry);
286 crb.recordMark(config.MARKID_VERIFIED_ENTRY);
287
288 if (GeneratePIC.getValue(crb.getOptions())) {
289 // Check for method state
290 HotSpotFrameContext frameContext = (HotSpotFrameContext) crb.frameContext;
291 if (!frameContext.isStub) {
292 crb.recordInlineDataInCodeWithNote(new HotSpotSentinelConstant(LIRKind.value(AMD64Kind.QWORD), JavaKind.Long), HotSpotConstantLoadAction.MAKE_NOT_ENTRANT);
293 asm.movq(AMD64.rax, asm.getPlaceholder(-1));
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246 profileInstructions(lir, crb);
247 }
248
249 /**
250 * Emits the code prior to the verified entry point.
251 *
252 * @param installedCodeOwner see {@link LIRGenerationProvider#emitCode}
253 */
254 public void emitCodePrefix(ResolvedJavaMethod installedCodeOwner, CompilationResultBuilder crb, AMD64MacroAssembler asm, RegisterConfig regConfig, Label verifiedEntry) {
255 HotSpotProviders providers = getProviders();
256 if (installedCodeOwner != null && !installedCodeOwner.isStatic()) {
257 crb.recordMark(config.MARKID_UNVERIFIED_ENTRY);
258 CallingConvention cc = regConfig.getCallingConvention(HotSpotCallingConventionType.JavaCallee, null, new JavaType[]{providers.getMetaAccess().lookupJavaType(Object.class)}, this);
259 Register inlineCacheKlass = rax; // see definition of IC_Klass in
260 // c1_LIRAssembler_x86.cpp
261 Register receiver = asRegister(cc.getArgument(0));
262 AMD64Address src = new AMD64Address(receiver, config.hubOffset);
263
264 if (config.useCompressedClassPointers) {
265 Register register = r10;
266 Register heapBase = providers.getRegisters().getHeapBaseRegister();
267 AMD64HotSpotMove.decodeKlassPointer(crb, asm, register, heapBase, src, config);
268 if (GeneratePIC.getValue(crb.getOptions())) {
269 asm.movq(heapBase, asm.getPlaceholder(-1));
270 crb.recordMark(config.MARKID_NARROW_OOP_BASE_ADDRESS);
271 } else {
272 if (config.narrowKlassBase != 0) {
273 // The heap base register was destroyed above, so restore it
274 if (config.narrowOopBase == 0L) {
275 asm.xorq(heapBase, heapBase);
276 } else {
277 asm.movq(heapBase, config.narrowOopBase);
278 }
279 }
280 }
281 asm.cmpq(inlineCacheKlass, register);
282 } else {
283 asm.cmpq(inlineCacheKlass, src);
284 }
285 AMD64Call.directConditionalJmp(crb, asm, getForeignCalls().lookupForeignCall(IC_MISS_HANDLER), ConditionFlag.NotEqual);
286 }
287
288 asm.align(config.codeEntryAlignment);
289 crb.recordMark(config.MARKID_OSR_ENTRY);
290 asm.bind(verifiedEntry);
291 crb.recordMark(config.MARKID_VERIFIED_ENTRY);
292
293 if (GeneratePIC.getValue(crb.getOptions())) {
294 // Check for method state
295 HotSpotFrameContext frameContext = (HotSpotFrameContext) crb.frameContext;
296 if (!frameContext.isStub) {
297 crb.recordInlineDataInCodeWithNote(new HotSpotSentinelConstant(LIRKind.value(AMD64Kind.QWORD), JavaKind.Long), HotSpotConstantLoadAction.MAKE_NOT_ENTRANT);
298 asm.movq(AMD64.rax, asm.getPlaceholder(-1));
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