1 /*
2  * Copyright (c) 2011, 2020, 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 #include "precompiled.hpp"
25 #include "classfile/javaClasses.inline.hpp"
26 #include "code/compiledIC.hpp"
27 #include "compiler/compileBroker.hpp"
28 #include "jvmci/jvmciCodeInstaller.hpp"
29 #include "jvmci/jvmciCompilerToVM.hpp"
30 #include "jvmci/jvmciRuntime.hpp"
31 #include "memory/universe.hpp"
32 #include "oops/compressedOops.inline.hpp"
33 #include "oops/klass.inline.hpp"
34 #include "prims/jvmtiExport.hpp"
35 #include "prims/methodHandles.hpp"
36 #include "runtime/interfaceSupport.inline.hpp"
37 #include "runtime/jniHandles.inline.hpp"
38 #include "runtime/sharedRuntime.hpp"
39 #include "utilities/align.hpp"
40 
41 // frequently used constants
42 // Allocate them with new so they are never destroyed (otherwise, a
43 // forced exit could destroy these objects while they are still in
44 // use).
45 ConstantOopWriteValue* CodeInstaller::_oop_null_scope_value = new (ResourceObj::C_HEAP, mtJVMCI) ConstantOopWriteValue(NULL);
46 ConstantIntValue*      CodeInstaller::_int_m1_scope_value = new (ResourceObj::C_HEAP, mtJVMCI) ConstantIntValue(-1);
47 ConstantIntValue*      CodeInstaller::_int_0_scope_value =  new (ResourceObj::C_HEAP, mtJVMCI) ConstantIntValue((jint)0);
48 ConstantIntValue*      CodeInstaller::_int_1_scope_value =  new (ResourceObj::C_HEAP, mtJVMCI) ConstantIntValue(1);
49 ConstantIntValue*      CodeInstaller::_int_2_scope_value =  new (ResourceObj::C_HEAP, mtJVMCI) ConstantIntValue(2);
50 LocationValue*         CodeInstaller::_illegal_value = new (ResourceObj::C_HEAP, mtJVMCI) LocationValue(Location());
51 MarkerValue*           CodeInstaller::_virtual_byte_array_marker = new (ResourceObj::C_HEAP, mtJVMCI) MarkerValue();
52 
getVMRegFromLocation(JVMCIObject location,int total_frame_size,JVMCI_TRAPS)53 VMReg CodeInstaller::getVMRegFromLocation(JVMCIObject location, int total_frame_size, JVMCI_TRAPS) {
54   if (location.is_null()) {
55     JVMCI_THROW_NULL(NullPointerException);
56   }
57 
58   JVMCIObject reg = jvmci_env()->get_code_Location_reg(location);
59   jint offset = jvmci_env()->get_code_Location_offset(location);
60 
61   if (reg.is_non_null()) {
62     // register
63     jint number = jvmci_env()->get_code_Register_number(reg);
64     VMReg vmReg = CodeInstaller::get_hotspot_reg(number, JVMCI_CHECK_NULL);
65     if (offset % 4 == 0) {
66       return vmReg->next(offset / 4);
67     } else {
68       JVMCI_ERROR_NULL("unaligned subregister offset %d in oop map", offset);
69     }
70   } else {
71     // stack slot
72     if (offset % 4 == 0) {
73       VMReg vmReg = VMRegImpl::stack2reg(offset / 4);
74       if (!OopMapValue::legal_vm_reg_name(vmReg)) {
75         // This restriction only applies to VMRegs that are used in OopMap but
76         // since that's the only use of VMRegs it's simplest to put this test
77         // here.  This test should also be equivalent legal_vm_reg_name but JVMCI
78         // clients can use max_oop_map_stack_stack_offset to detect this problem
79         // directly.  The asserts just ensure that the tests are in agreement.
80         assert(offset > CompilerToVM::Data::max_oop_map_stack_offset(), "illegal VMReg");
81         JVMCI_ERROR_NULL("stack offset %d is too large to be encoded in OopMap (max %d)",
82                          offset, CompilerToVM::Data::max_oop_map_stack_offset());
83       }
84       assert(OopMapValue::legal_vm_reg_name(vmReg), "illegal VMReg");
85       return vmReg;
86     } else {
87       JVMCI_ERROR_NULL("unaligned stack offset %d in oop map", offset);
88     }
89   }
90 }
91 
92 // creates a HotSpot oop map out of the byte arrays provided by DebugInfo
create_oop_map(JVMCIObject debug_info,JVMCI_TRAPS)93 OopMap* CodeInstaller::create_oop_map(JVMCIObject debug_info, JVMCI_TRAPS) {
94   JVMCIObject reference_map = jvmci_env()->get_DebugInfo_referenceMap(debug_info);
95   if (reference_map.is_null()) {
96     JVMCI_THROW_NULL(NullPointerException);
97   }
98   if (!jvmci_env()->isa_HotSpotReferenceMap(reference_map)) {
99     JVMCI_ERROR_NULL("unknown reference map: %s", jvmci_env()->klass_name(reference_map));
100   }
101   if (!_has_wide_vector && SharedRuntime::is_wide_vector(jvmci_env()->get_HotSpotReferenceMap_maxRegisterSize(reference_map))) {
102     if (SharedRuntime::polling_page_vectors_safepoint_handler_blob() == NULL) {
103       JVMCI_ERROR_NULL("JVMCI is producing code using vectors larger than the runtime supports");
104     }
105     _has_wide_vector = true;
106   }
107   OopMap* map = new OopMap(_total_frame_size, _parameter_count);
108   JVMCIObjectArray objects = jvmci_env()->get_HotSpotReferenceMap_objects(reference_map);
109   JVMCIObjectArray derivedBase = jvmci_env()->get_HotSpotReferenceMap_derivedBase(reference_map);
110   JVMCIPrimitiveArray sizeInBytes = jvmci_env()->get_HotSpotReferenceMap_sizeInBytes(reference_map);
111   if (objects.is_null() || derivedBase.is_null() || sizeInBytes.is_null()) {
112     JVMCI_THROW_NULL(NullPointerException);
113   }
114   if (JVMCIENV->get_length(objects) != JVMCIENV->get_length(derivedBase) || JVMCIENV->get_length(objects) != JVMCIENV->get_length(sizeInBytes)) {
115     JVMCI_ERROR_NULL("arrays in reference map have different sizes: %d %d %d", JVMCIENV->get_length(objects), JVMCIENV->get_length(derivedBase), JVMCIENV->get_length(sizeInBytes));
116   }
117   for (int i = 0; i < JVMCIENV->get_length(objects); i++) {
118     JVMCIObject location = JVMCIENV->get_object_at(objects, i);
119     JVMCIObject baseLocation = JVMCIENV->get_object_at(derivedBase, i);
120     jint bytes = JVMCIENV->get_int_at(sizeInBytes, i);
121 
122     VMReg vmReg = getVMRegFromLocation(location, _total_frame_size, JVMCI_CHECK_NULL);
123     if (baseLocation.is_non_null()) {
124       // derived oop
125 #ifdef _LP64
126       if (bytes == 8) {
127 #else
128       if (bytes == 4) {
129 #endif
130         VMReg baseReg = getVMRegFromLocation(baseLocation, _total_frame_size, JVMCI_CHECK_NULL);
131         map->set_derived_oop(vmReg, baseReg);
132       } else {
133         JVMCI_ERROR_NULL("invalid derived oop size in ReferenceMap: %d", bytes);
134       }
135 #ifdef _LP64
136     } else if (bytes == 8) {
137       // wide oop
138       map->set_oop(vmReg);
139     } else if (bytes == 4) {
140       // narrow oop
141       map->set_narrowoop(vmReg);
142 #else
143     } else if (bytes == 4) {
144       map->set_oop(vmReg);
145 #endif
146     } else {
147       JVMCI_ERROR_NULL("invalid oop size in ReferenceMap: %d", bytes);
148     }
149   }
150 
151   JVMCIObject callee_save_info = jvmci_env()->get_DebugInfo_calleeSaveInfo(debug_info);
152   if (callee_save_info.is_non_null()) {
153     JVMCIObjectArray registers = jvmci_env()->get_RegisterSaveLayout_registers(callee_save_info);
154     JVMCIPrimitiveArray slots = jvmci_env()->get_RegisterSaveLayout_slots(callee_save_info);
155     for (jint i = 0; i < JVMCIENV->get_length(slots); i++) {
156       JVMCIObject jvmci_reg = JVMCIENV->get_object_at(registers, i);
157       jint jvmci_reg_number = jvmci_env()->get_code_Register_number(jvmci_reg);
158       VMReg hotspot_reg = CodeInstaller::get_hotspot_reg(jvmci_reg_number, JVMCI_CHECK_NULL);
159       // HotSpot stack slots are 4 bytes
160       jint jvmci_slot = JVMCIENV->get_int_at(slots, i);
161       jint hotspot_slot = jvmci_slot * VMRegImpl::slots_per_word;
162       VMReg hotspot_slot_as_reg = VMRegImpl::stack2reg(hotspot_slot);
163       map->set_callee_saved(hotspot_slot_as_reg, hotspot_reg);
164 #ifdef _LP64
165       // (copied from generate_oop_map() in c1_Runtime1_x86.cpp)
166       VMReg hotspot_slot_hi_as_reg = VMRegImpl::stack2reg(hotspot_slot + 1);
167       map->set_callee_saved(hotspot_slot_hi_as_reg, hotspot_reg->next());
168 #endif
169     }
170   }
171   return map;
172 }
173 
174 #if INCLUDE_AOT
175 AOTOopRecorder::AOTOopRecorder(CodeInstaller* code_inst, Arena* arena, bool deduplicate) : OopRecorder(arena, deduplicate) {
176   _code_inst = code_inst;
177   _meta_refs = new GrowableArray<jobject>();
178 }
179 
180 int AOTOopRecorder::nr_meta_refs() const {
181   return _meta_refs->length();
182 }
183 
184 jobject AOTOopRecorder::meta_element(int pos) const {
185   return _meta_refs->at(pos);
186 }
187 
188 int AOTOopRecorder::find_index(Metadata* h) {
189   JavaThread* THREAD = JavaThread::current();
190   JVMCIEnv* JVMCIENV = _code_inst->jvmci_env();
191   int oldCount = metadata_count();
192   int index =  this->OopRecorder::find_index(h);
193   int newCount = metadata_count();
194 
195   if (oldCount == newCount) {
196     // found a match
197     return index;
198   }
199 
200   vmassert(index + 1 == newCount, "must be last");
201 
202   JVMCIKlassHandle klass(THREAD);
203   JVMCIObject result;
204   guarantee(h != NULL,
205             "If DebugInformationRecorder::describe_scope passes NULL oldCount == newCount must hold.");
206   if (h->is_klass()) {
207     klass = (Klass*) h;
208     result = JVMCIENV->get_jvmci_type(klass, JVMCI_CATCH);
209   } else if (h->is_method()) {
210     Method* method = (Method*) h;
211     methodHandle mh(THREAD, method);
212     result = JVMCIENV->get_jvmci_method(mh, JVMCI_CATCH);
213   }
214   jobject ref = JVMCIENV->get_jobject(result);
215   record_meta_ref(ref, index);
216 
217   return index;
218 }
219 
220 int AOTOopRecorder::find_index(jobject h) {
221   if (h == NULL) {
222     return 0;
223   }
224   oop javaMirror = JNIHandles::resolve(h);
225   Klass* klass = java_lang_Class::as_Klass(javaMirror);
226   return find_index(klass);
227 }
228 
229 void AOTOopRecorder::record_meta_ref(jobject o, int index) {
230   assert(index > 0, "must be 1..n");
231   index -= 1; // reduce by one to convert to array index
232 
233   assert(index == _meta_refs->length(), "must be last");
234   _meta_refs->append(o);
235 }
236 #endif // INCLUDE_AOT
237 
238 void* CodeInstaller::record_metadata_reference(CodeSection* section, address dest, JVMCIObject constant, JVMCI_TRAPS) {
239   /*
240    * This method needs to return a raw (untyped) pointer, since the value of a pointer to the base
241    * class is in general not equal to the pointer of the subclass. When patching metaspace pointers,
242    * the compiler expects a direct pointer to the subclass (Klass* or Method*), not a pointer to the
243    * base class (Metadata* or MetaspaceObj*).
244    */
245   JVMCIObject obj = jvmci_env()->get_HotSpotMetaspaceConstantImpl_metaspaceObject(constant);
246   if (jvmci_env()->isa_HotSpotResolvedObjectTypeImpl(obj)) {
247     Klass* klass = JVMCIENV->asKlass(obj);
248     assert(!jvmci_env()->get_HotSpotMetaspaceConstantImpl_compressed(constant), "unexpected compressed klass pointer %s @ " INTPTR_FORMAT, klass->name()->as_C_string(), p2i(klass));
249     int index = _oop_recorder->find_index(klass);
250     section->relocate(dest, metadata_Relocation::spec(index));
251     JVMCI_event_3("metadata[%d of %d] = %s", index, _oop_recorder->metadata_count(), klass->name()->as_C_string());
252     return klass;
253   } else if (jvmci_env()->isa_HotSpotResolvedJavaMethodImpl(obj)) {
254     Method* method = jvmci_env()->asMethod(obj);
255     assert(!jvmci_env()->get_HotSpotMetaspaceConstantImpl_compressed(constant), "unexpected compressed method pointer %s @ " INTPTR_FORMAT, method->name()->as_C_string(), p2i(method));
256     int index = _oop_recorder->find_index(method);
257     section->relocate(dest, metadata_Relocation::spec(index));
258     JVMCI_event_3("metadata[%d of %d] = %s", index, _oop_recorder->metadata_count(), method->name()->as_C_string());
259     return method;
260   } else {
261     JVMCI_ERROR_NULL("unexpected metadata reference for constant of type %s", jvmci_env()->klass_name(obj));
262   }
263 }
264 
265 #ifdef _LP64
266 narrowKlass CodeInstaller::record_narrow_metadata_reference(CodeSection* section, address dest, JVMCIObject constant, JVMCI_TRAPS) {
267   JVMCIObject obj = jvmci_env()->get_HotSpotMetaspaceConstantImpl_metaspaceObject(constant);
268   assert(jvmci_env()->get_HotSpotMetaspaceConstantImpl_compressed(constant), "unexpected uncompressed pointer");
269 
270   if (!jvmci_env()->isa_HotSpotResolvedObjectTypeImpl(obj)) {
271     JVMCI_ERROR_0("unexpected compressed pointer of type %s", jvmci_env()->klass_name(obj));
272   }
273 
274   Klass* klass = JVMCIENV->asKlass(obj);
275   int index = _oop_recorder->find_index(klass);
276   section->relocate(dest, metadata_Relocation::spec(index));
277   JVMCI_event_3("narrowKlass[%d of %d] = %s", index, _oop_recorder->metadata_count(), klass->name()->as_C_string());
278   return CompressedKlassPointers::encode(klass);
279 }
280 #endif
281 
282 Location::Type CodeInstaller::get_oop_type(JVMCIObject value) {
283   JVMCIObject valueKind = jvmci_env()->get_Value_valueKind(value);
284   JVMCIObject platformKind = jvmci_env()->get_ValueKind_platformKind(valueKind);
285 
286   if (jvmci_env()->equals(platformKind, word_kind())) {
287     return Location::oop;
288   } else {
289     return Location::narrowoop;
290   }
291 }
292 
293 ScopeValue* CodeInstaller::get_scope_value(JVMCIObject value, BasicType type, GrowableArray<ScopeValue*>* objects, ScopeValue* &second, JVMCI_TRAPS) {
294   second = NULL;
295   if (value.is_null()) {
296     JVMCI_THROW_NULL(NullPointerException);
297   } else if (JVMCIENV->equals(value, jvmci_env()->get_Value_ILLEGAL())) {
298     if (type != T_ILLEGAL) {
299       JVMCI_ERROR_NULL("unexpected illegal value, expected %s", basictype_to_str(type));
300     }
301     return _illegal_value;
302   } else if (jvmci_env()->isa_RegisterValue(value)) {
303     JVMCIObject reg = jvmci_env()->get_RegisterValue_reg(value);
304     jint number = jvmci_env()->get_code_Register_number(reg);
305     VMReg hotspotRegister = get_hotspot_reg(number, JVMCI_CHECK_NULL);
306     if (is_general_purpose_reg(hotspotRegister)) {
307       Location::Type locationType;
308       if (type == T_OBJECT) {
309         locationType = get_oop_type(value);
310       } else if (type == T_LONG) {
311         locationType = Location::lng;
312       } else if (type == T_INT || type == T_FLOAT || type == T_SHORT || type == T_CHAR || type == T_BYTE || type == T_BOOLEAN) {
313         locationType = Location::int_in_long;
314       } else {
315         JVMCI_ERROR_NULL("unexpected type %s in cpu register", basictype_to_str(type));
316       }
317       ScopeValue* value = new LocationValue(Location::new_reg_loc(locationType, hotspotRegister));
318       if (type == T_LONG) {
319         second = value;
320       }
321       return value;
322     } else {
323       Location::Type locationType;
324       if (type == T_FLOAT) {
325         // this seems weird, but the same value is used in c1_LinearScan
326         locationType = Location::normal;
327       } else if (type == T_DOUBLE) {
328         locationType = Location::dbl;
329       } else {
330         JVMCI_ERROR_NULL("unexpected type %s in floating point register", basictype_to_str(type));
331       }
332       ScopeValue* value = new LocationValue(Location::new_reg_loc(locationType, hotspotRegister));
333       if (type == T_DOUBLE) {
334         second = value;
335       }
336       return value;
337     }
338   } else if (jvmci_env()->isa_StackSlot(value)) {
339     jint offset = jvmci_env()->get_StackSlot_offset(value);
340     if (jvmci_env()->get_StackSlot_addFrameSize(value)) {
341       offset += _total_frame_size;
342     }
343 
344     Location::Type locationType;
345     if (type == T_OBJECT) {
346       locationType = get_oop_type(value);
347     } else if (type == T_LONG) {
348       locationType = Location::lng;
349     } else if (type == T_DOUBLE) {
350       locationType = Location::dbl;
351     } else if (type == T_INT || type == T_FLOAT || type == T_SHORT || type == T_CHAR || type == T_BYTE || type == T_BOOLEAN) {
352       locationType = Location::normal;
353     } else {
354       JVMCI_ERROR_NULL("unexpected type %s in stack slot", basictype_to_str(type));
355     }
356     ScopeValue* value = new LocationValue(Location::new_stk_loc(locationType, offset));
357     if (type == T_DOUBLE || type == T_LONG) {
358       second = value;
359     }
360     return value;
361   } else if (jvmci_env()->isa_JavaConstant(value)) {
362     if (jvmci_env()->isa_PrimitiveConstant(value)) {
363       if (jvmci_env()->isa_RawConstant(value)) {
364         jlong prim = jvmci_env()->get_PrimitiveConstant_primitive(value);
365         return new ConstantLongValue(prim);
366       } else {
367         BasicType constantType = jvmci_env()->kindToBasicType(jvmci_env()->get_PrimitiveConstant_kind(value), JVMCI_CHECK_NULL);
368         if (type != constantType) {
369           JVMCI_ERROR_NULL("primitive constant type doesn't match, expected %s but got %s", basictype_to_str(type), basictype_to_str(constantType));
370         }
371         if (type == T_INT || type == T_FLOAT) {
372           jint prim = (jint)jvmci_env()->get_PrimitiveConstant_primitive(value);
373           switch (prim) {
374             case -1: return _int_m1_scope_value;
375             case  0: return _int_0_scope_value;
376             case  1: return _int_1_scope_value;
377             case  2: return _int_2_scope_value;
378             default: return new ConstantIntValue(prim);
379           }
380         } else if (type == T_LONG || type == T_DOUBLE) {
381           jlong prim = jvmci_env()->get_PrimitiveConstant_primitive(value);
382           second = _int_1_scope_value;
383           return new ConstantLongValue(prim);
384         } else {
385           JVMCI_ERROR_NULL("unexpected primitive constant type %s", basictype_to_str(type));
386         }
387       }
388     } else if (jvmci_env()->isa_NullConstant(value) || jvmci_env()->isa_HotSpotCompressedNullConstant(value)) {
389       if (type == T_OBJECT) {
390         return _oop_null_scope_value;
391       } else {
392         JVMCI_ERROR_NULL("unexpected null constant, expected %s", basictype_to_str(type));
393       }
394     } else if (jvmci_env()->isa_HotSpotObjectConstantImpl(value)) {
395       if (type == T_OBJECT) {
396         Handle obj = jvmci_env()->asConstant(value, JVMCI_CHECK_NULL);
397         if (obj == NULL) {
398           JVMCI_ERROR_NULL("null value must be in NullConstant");
399         }
400         return new ConstantOopWriteValue(JNIHandles::make_local(obj()));
401       } else {
402         JVMCI_ERROR_NULL("unexpected object constant, expected %s", basictype_to_str(type));
403       }
404     }
405   } else if (jvmci_env()->isa_VirtualObject(value)) {
406     if (type == T_OBJECT) {
407       int id = jvmci_env()->get_VirtualObject_id(value);
408       if (0 <= id && id < objects->length()) {
409         ScopeValue* object = objects->at(id);
410         if (object != NULL) {
411           return object;
412         }
413       }
414       JVMCI_ERROR_NULL("unknown virtual object id %d", id);
415     } else {
416       JVMCI_ERROR_NULL("unexpected virtual object, expected %s", basictype_to_str(type));
417     }
418   }
419 
420   JVMCI_ERROR_NULL("unexpected value in scope: %s", jvmci_env()->klass_name(value))
421 }
422 
423 void CodeInstaller::record_object_value(ObjectValue* sv, JVMCIObject value, GrowableArray<ScopeValue*>* objects, JVMCI_TRAPS) {
424   JVMCIObject type = jvmci_env()->get_VirtualObject_type(value);
425   int id = jvmci_env()->get_VirtualObject_id(value);
426   Klass* klass = JVMCIENV->asKlass(type);
427   bool isLongArray = klass == Universe::longArrayKlassObj();
428   bool isByteArray = klass == Universe::byteArrayKlassObj();
429 
430   JVMCIObjectArray values = jvmci_env()->get_VirtualObject_values(value);
431   JVMCIObjectArray slotKinds = jvmci_env()->get_VirtualObject_slotKinds(value);
432   for (jint i = 0; i < JVMCIENV->get_length(values); i++) {
433     ScopeValue* cur_second = NULL;
434     JVMCIObject object = JVMCIENV->get_object_at(values, i);
435     BasicType type = jvmci_env()->kindToBasicType(JVMCIENV->get_object_at(slotKinds, i), JVMCI_CHECK);
436     ScopeValue* value;
437     if (JVMCIENV->equals(object, jvmci_env()->get_Value_ILLEGAL())) {
438       if (isByteArray && type == T_ILLEGAL) {
439         /*
440          * The difference between a virtualized large access and a deferred write is the kind stored in the slotKinds
441          * of the virtual object: in the virtualization case, the kind is illegal, in the deferred write case, the kind
442          * is access stack kind (an int).
443          */
444         value = _virtual_byte_array_marker;
445       } else {
446         value = _illegal_value;
447         if (type == T_DOUBLE || type == T_LONG) {
448             cur_second = _illegal_value;
449         }
450       }
451     } else {
452       value = get_scope_value(object, type, objects, cur_second, JVMCI_CHECK);
453     }
454 
455     if (isLongArray && cur_second == NULL) {
456       // we're trying to put ints into a long array... this isn't really valid, but it's used for some optimizations.
457       // add an int 0 constant
458       cur_second = _int_0_scope_value;
459     }
460 
461     if (isByteArray && cur_second != NULL && (type == T_DOUBLE || type == T_LONG)) {
462       // we are trying to write a long in a byte Array. We will need to count the illegals to restore the type of
463       // the thing we put inside.
464       cur_second = NULL;
465     }
466 
467     if (cur_second != NULL) {
468       sv->field_values()->append(cur_second);
469     }
470     assert(value != NULL, "missing value");
471     sv->field_values()->append(value);
472   }
473 }
474 
475 MonitorValue* CodeInstaller::get_monitor_value(JVMCIObject value, GrowableArray<ScopeValue*>* objects, JVMCI_TRAPS) {
476   if (value.is_null()) {
477     JVMCI_THROW_NULL(NullPointerException);
478   }
479   if (!jvmci_env()->isa_StackLockValue(value)) {
480     JVMCI_ERROR_NULL("Monitors must be of type StackLockValue, got %s", jvmci_env()->klass_name(value));
481   }
482 
483   ScopeValue* second = NULL;
484   ScopeValue* owner_value = get_scope_value(jvmci_env()->get_StackLockValue_owner(value), T_OBJECT, objects, second, JVMCI_CHECK_NULL);
485   assert(second == NULL, "monitor cannot occupy two stack slots");
486 
487   ScopeValue* lock_data_value = get_scope_value(jvmci_env()->get_StackLockValue_slot(value), T_LONG, objects, second, JVMCI_CHECK_NULL);
488   assert(second == lock_data_value, "monitor is LONG value that occupies two stack slots");
489   assert(lock_data_value->is_location(), "invalid monitor location");
490   Location lock_data_loc = ((LocationValue*)lock_data_value)->location();
491 
492   bool eliminated = false;
493   if (jvmci_env()->get_StackLockValue_eliminated(value)) {
494     eliminated = true;
495   }
496 
497   return new MonitorValue(owner_value, lock_data_loc, eliminated);
498 }
499 
500 void CodeInstaller::initialize_dependencies(JVMCIObject compiled_code, OopRecorder* oop_recorder, JVMCI_TRAPS) {
501   JavaThread* thread = JavaThread::current();
502   CompilerThread* compilerThread = thread->is_Compiler_thread() ? thread->as_CompilerThread() : NULL;
503   _oop_recorder = oop_recorder;
504   _dependencies = new Dependencies(&_arena, _oop_recorder, compilerThread != NULL ? compilerThread->log() : NULL);
505   JVMCIObjectArray assumptions = jvmci_env()->get_HotSpotCompiledCode_assumptions(compiled_code);
506   if (assumptions.is_non_null()) {
507     int length = JVMCIENV->get_length(assumptions);
508     for (int i = 0; i < length; ++i) {
509       JVMCIObject assumption = JVMCIENV->get_object_at(assumptions, i);
510       if (assumption.is_non_null()) {
511         if (jvmci_env()->isa_Assumptions_NoFinalizableSubclass(assumption)) {
512           assumption_NoFinalizableSubclass(assumption);
513         } else if (jvmci_env()->isa_Assumptions_ConcreteSubtype(assumption)) {
514           assumption_ConcreteSubtype(assumption);
515         } else if (jvmci_env()->isa_Assumptions_LeafType(assumption)) {
516           assumption_LeafType(assumption);
517         } else if (jvmci_env()->isa_Assumptions_ConcreteMethod(assumption)) {
518           assumption_ConcreteMethod(assumption);
519         } else if (jvmci_env()->isa_Assumptions_CallSiteTargetValue(assumption)) {
520           assumption_CallSiteTargetValue(assumption, JVMCI_CHECK);
521         } else {
522           JVMCI_ERROR("unexpected Assumption subclass %s", jvmci_env()->klass_name(assumption));
523         }
524       }
525     }
526   }
527   if (JvmtiExport::can_hotswap_or_post_breakpoint()) {
528     JVMCIObjectArray methods = jvmci_env()->get_HotSpotCompiledCode_methods(compiled_code);
529     if (methods.is_non_null()) {
530       int length = JVMCIENV->get_length(methods);
531       for (int i = 0; i < length; ++i) {
532         JVMCIObject method_handle = JVMCIENV->get_object_at(methods, i);
533         Method* method = jvmci_env()->asMethod(method_handle);
534         _dependencies->assert_evol_method(method);
535       }
536     }
537   }
538 }
539 
540 #if INCLUDE_AOT
541 RelocBuffer::~RelocBuffer() {
542   FREE_C_HEAP_ARRAY(char, _buffer);
543 }
544 
545 address RelocBuffer::begin() const {
546   if (_buffer != NULL) {
547     return (address) _buffer;
548   }
549   return (address) _static_buffer;
550 }
551 
552 void RelocBuffer::set_size(size_t bytes) {
553   assert(bytes <= _size, "can't grow in size!");
554   _size = bytes;
555 }
556 
557 void RelocBuffer::ensure_size(size_t bytes) {
558   assert(_buffer == NULL, "can only be used once");
559   assert(_size == 0, "can only be used once");
560   if (bytes >= RelocBuffer::stack_size) {
561     _buffer = NEW_C_HEAP_ARRAY(char, bytes, mtJVMCI);
562   }
563   _size = bytes;
564 }
565 
566 JVMCI::CodeInstallResult CodeInstaller::gather_metadata(JVMCIObject target, JVMCIObject compiled_code, CodeMetadata& metadata, JVMCI_TRAPS) {
567   assert(JVMCIENV->is_hotspot(), "AOT code is executed only in HotSpot mode");
568   CodeBuffer buffer("JVMCI Compiler CodeBuffer for Metadata");
569   AOTOopRecorder* recorder = new AOTOopRecorder(this, &_arena, true);
570   initialize_dependencies(compiled_code, recorder, JVMCI_CHECK_OK);
571 
572   metadata.set_oop_recorder(recorder);
573 
574   // Get instructions and constants CodeSections early because we need it.
575   _instructions = buffer.insts();
576   _constants = buffer.consts();
577   buffer.set_immutable_PIC(_immutable_pic_compilation);
578 
579   initialize_fields(target, compiled_code, JVMCI_CHECK_OK);
580   JVMCI::CodeInstallResult result = initialize_buffer(buffer, false, JVMCI_CHECK_OK);
581   if (result != JVMCI::ok) {
582     return result;
583   }
584 
585   _debug_recorder->pcs_size(); // create the sentinel record
586 
587   assert(_debug_recorder->pcs_length() >= 2, "must be at least 2");
588 
589   metadata.set_pc_desc(_debug_recorder->pcs(), _debug_recorder->pcs_length());
590   metadata.set_scopes(_debug_recorder->stream()->buffer(), _debug_recorder->data_size());
591   metadata.set_exception_table(&_exception_handler_table);
592   metadata.set_implicit_exception_table(&_implicit_exception_table);
593 
594   RelocBuffer* reloc_buffer = metadata.get_reloc_buffer();
595 
596   reloc_buffer->ensure_size(buffer.total_relocation_size());
597   size_t size = (size_t) buffer.copy_relocations_to(reloc_buffer->begin(), (CodeBuffer::csize_t) reloc_buffer->size(), true);
598   reloc_buffer->set_size(size);
599   return JVMCI::ok;
600 }
601 #endif // INCLUDE_AOT
602 
603 // constructor used to create a method
604 JVMCI::CodeInstallResult CodeInstaller::install(JVMCICompiler* compiler,
605     JVMCIObject target,
606     JVMCIObject compiled_code,
607     CodeBlob*& cb,
608     JVMCIObject installed_code,
609     FailedSpeculation** failed_speculations,
610     char* speculations,
611     int speculations_len,
612     JVMCI_TRAPS) {
613 
614   CodeBuffer buffer("JVMCI Compiler CodeBuffer");
615   OopRecorder* recorder = new OopRecorder(&_arena, true);
616   initialize_dependencies(compiled_code, recorder, JVMCI_CHECK_OK);
617 
618   // Get instructions and constants CodeSections early because we need it.
619   _instructions = buffer.insts();
620   _constants = buffer.consts();
621 #if INCLUDE_AOT
622   buffer.set_immutable_PIC(_immutable_pic_compilation);
623 #endif
624 
625   initialize_fields(target, compiled_code, JVMCI_CHECK_OK);
626   JVMCI::CodeInstallResult result = initialize_buffer(buffer, true, JVMCI_CHECK_OK);
627   if (result != JVMCI::ok) {
628     return result;
629   }
630 
631   int stack_slots = _total_frame_size / HeapWordSize; // conversion to words
632 
633   if (!jvmci_env()->isa_HotSpotCompiledNmethod(compiled_code)) {
634     JVMCIObject stubName = jvmci_env()->get_HotSpotCompiledCode_name(compiled_code);
635     if (stubName.is_null()) {
636       JVMCI_ERROR_OK("stub should have a name");
637     }
638     char* name = strdup(jvmci_env()->as_utf8_string(stubName));
639     cb = RuntimeStub::new_runtime_stub(name,
640                                        &buffer,
641                                        _offsets.value(CodeOffsets::Frame_Complete),
642                                        stack_slots,
643                                        _debug_recorder->_oopmaps,
644                                        false);
645     result = JVMCI::ok;
646   } else {
647     JVMCICompileState* compile_state = (JVMCICompileState*) (address) jvmci_env()->get_HotSpotCompiledNmethod_compileState(compiled_code);
648     if (compile_state != NULL) {
649       jvmci_env()->set_compile_state(compile_state);
650     }
651 
652     Thread* thread = Thread::current();
653 
654     methodHandle method(thread, jvmci_env()->asMethod(jvmci_env()->get_HotSpotCompiledNmethod_method(compiled_code)));
655     jint entry_bci = jvmci_env()->get_HotSpotCompiledNmethod_entryBCI(compiled_code);
656     bool has_unsafe_access = jvmci_env()->get_HotSpotCompiledNmethod_hasUnsafeAccess(compiled_code) == JNI_TRUE;
657     jint id = jvmci_env()->get_HotSpotCompiledNmethod_id(compiled_code);
658     if (id == -1) {
659       // Make sure a valid compile_id is associated with every compile
660       id = CompileBroker::assign_compile_id_unlocked(thread, method, entry_bci);
661       jvmci_env()->set_HotSpotCompiledNmethod_id(compiled_code, id);
662     }
663     if (!jvmci_env()->isa_HotSpotNmethod(installed_code)) {
664       JVMCI_THROW_MSG_(IllegalArgumentException, "InstalledCode object must be a HotSpotNmethod when installing a HotSpotCompiledNmethod", JVMCI::ok);
665     }
666 
667     JVMCIObject mirror = installed_code;
668     nmethod* nm = NULL;
669     result = runtime()->register_method(jvmci_env(), method, nm, entry_bci, &_offsets, _orig_pc_offset, &buffer,
670                                         stack_slots, _debug_recorder->_oopmaps, &_exception_handler_table, &_implicit_exception_table,
671                                         compiler, _debug_recorder, _dependencies, id,
672                                         has_unsafe_access, _has_wide_vector, compiled_code, mirror,
673                                         failed_speculations, speculations, speculations_len);
674     cb = nm->as_codeblob_or_null();
675     if (nm != NULL && compile_state == NULL) {
676       // This compile didn't come through the CompileBroker so perform the printing here
677       DirectiveSet* directive = DirectivesStack::getMatchingDirective(method, compiler);
678       nm->maybe_print_nmethod(directive);
679       DirectivesStack::release(directive);
680     }
681   }
682 
683   if (cb != NULL) {
684     // Make sure the pre-calculated constants section size was correct.
685     guarantee((cb->code_begin() - cb->content_begin()) >= _constants_size, "%d < %d", (int)(cb->code_begin() - cb->content_begin()), _constants_size);
686   }
687   return result;
688 }
689 
690 void CodeInstaller::initialize_fields(JVMCIObject target, JVMCIObject compiled_code, JVMCI_TRAPS) {
691   if (jvmci_env()->isa_HotSpotCompiledNmethod(compiled_code)) {
692     JVMCIObject hotspotJavaMethod = jvmci_env()->get_HotSpotCompiledNmethod_method(compiled_code);
693     Thread* thread = Thread::current();
694     methodHandle method(thread, jvmci_env()->asMethod(hotspotJavaMethod));
695     _parameter_count = method->size_of_parameters();
696     JVMCI_event_2("installing code for %s", method->name_and_sig_as_C_string());
697   } else {
698     // Must be a HotSpotCompiledRuntimeStub.
699     // Only used in OopMap constructor for non-product builds
700     _parameter_count = 0;
701   }
702   _sites_handle = jvmci_env()->get_HotSpotCompiledCode_sites(compiled_code);
703 
704   _code_handle = jvmci_env()->get_HotSpotCompiledCode_targetCode(compiled_code);
705   _code_size = jvmci_env()->get_HotSpotCompiledCode_targetCodeSize(compiled_code);
706   _total_frame_size = jvmci_env()->get_HotSpotCompiledCode_totalFrameSize(compiled_code);
707 
708   JVMCIObject deoptRescueSlot = jvmci_env()->get_HotSpotCompiledCode_deoptRescueSlot(compiled_code);
709   if (deoptRescueSlot.is_null()) {
710     _orig_pc_offset = -1;
711   } else {
712     _orig_pc_offset = jvmci_env()->get_StackSlot_offset(deoptRescueSlot);
713     if (jvmci_env()->get_StackSlot_addFrameSize(deoptRescueSlot)) {
714       _orig_pc_offset += _total_frame_size;
715     }
716     if (_orig_pc_offset < 0) {
717       JVMCI_ERROR("invalid deopt rescue slot: %d", _orig_pc_offset);
718     }
719   }
720 
721   // Pre-calculate the constants section size.  This is required for PC-relative addressing.
722   _data_section_handle = jvmci_env()->get_HotSpotCompiledCode_dataSection(compiled_code);
723   if ((_constants->alignment() % jvmci_env()->get_HotSpotCompiledCode_dataSectionAlignment(compiled_code)) != 0) {
724     JVMCI_ERROR("invalid data section alignment: %d", jvmci_env()->get_HotSpotCompiledCode_dataSectionAlignment(compiled_code));
725   }
726   _constants_size = JVMCIENV->get_length(data_section());
727 
728   _data_section_patches_handle = jvmci_env()->get_HotSpotCompiledCode_dataSectionPatches(compiled_code);
729 
730 #ifndef PRODUCT
731   _comments_handle = jvmci_env()->get_HotSpotCompiledCode_comments(compiled_code);
732 #endif
733 
734   _next_call_type = INVOKE_INVALID;
735 
736   _has_wide_vector = false;
737 
738   JVMCIObject arch = jvmci_env()->get_TargetDescription_arch(target);
739   _word_kind_handle = jvmci_env()->get_Architecture_wordKind(arch);
740 }
741 
742 int CodeInstaller::estimate_stubs_size(JVMCI_TRAPS) {
743   // Estimate the number of static and aot call stubs that might be emitted.
744   int static_call_stubs = 0;
745   int aot_call_stubs = 0;
746   int trampoline_stubs = 0;
747   JVMCIObjectArray sites = this->sites();
748   for (int i = 0; i < JVMCIENV->get_length(sites); i++) {
749     JVMCIObject site = JVMCIENV->get_object_at(sites, i);
750     if (!site.is_null()) {
751       if (jvmci_env()->isa_site_Mark(site)) {
752         JVMCIObject id_obj = jvmci_env()->get_site_Mark_id(site);
753         if (id_obj.is_non_null()) {
754           if (!jvmci_env()->is_boxing_object(T_INT, id_obj)) {
755             JVMCI_ERROR_0("expected Integer id, got %s", jvmci_env()->klass_name(id_obj));
756           }
757           jint id = jvmci_env()->get_boxed_value(T_INT, id_obj).i;
758           switch (id) {
759             case INVOKEINTERFACE:
760             case INVOKEVIRTUAL:
761               trampoline_stubs++;
762               break;
763             case INVOKESTATIC:
764             case INVOKESPECIAL:
765               static_call_stubs++;
766               trampoline_stubs++;
767               break;
768             default:
769               break;
770           }
771         }
772       }
773 #if INCLUDE_AOT
774       if (UseAOT && jvmci_env()->isa_site_Call(site)) {
775         JVMCIObject target = jvmci_env()-> get_site_Call_target(site);
776         if (!jvmci_env()->isa_HotSpotForeignCallTarget(target)) {
777           // Add far aot trampolines.
778           aot_call_stubs++;
779         }
780       }
781 #endif
782     }
783   }
784   int size = static_call_stubs * CompiledStaticCall::to_interp_stub_size();
785   size += trampoline_stubs * CompiledStaticCall::to_trampoline_stub_size();
786 #if INCLUDE_AOT
787   size += aot_call_stubs * CompiledStaticCall::to_aot_stub_size();
788 #endif
789   return size;
790 }
791 
792 // perform data and call relocation on the CodeBuffer
793 JVMCI::CodeInstallResult CodeInstaller::initialize_buffer(CodeBuffer& buffer, bool check_size, JVMCI_TRAPS) {
794   HandleMark hm(Thread::current());
795   JVMCIObjectArray sites = this->sites();
796   int locs_buffer_size = JVMCIENV->get_length(sites) * (relocInfo::length_limit + sizeof(relocInfo));
797 
798   // Allocate enough space in the stub section for the static call
799   // stubs.  Stubs have extra relocs but they are managed by the stub
800   // section itself so they don't need to be accounted for in the
801   // locs_buffer above.
802   int stubs_size = estimate_stubs_size(JVMCI_CHECK_OK);
803   int total_size = align_up(_code_size, buffer.insts()->alignment()) + align_up(_constants_size, buffer.consts()->alignment()) + align_up(stubs_size, buffer.stubs()->alignment());
804 
805   if (check_size && total_size > JVMCINMethodSizeLimit) {
806     return JVMCI::code_too_large;
807   }
808 
809   buffer.initialize(total_size, locs_buffer_size);
810   if (buffer.blob() == NULL) {
811     return JVMCI::cache_full;
812   }
813   buffer.initialize_stubs_size(stubs_size);
814   buffer.initialize_consts_size(_constants_size);
815 
816   _debug_recorder = new DebugInformationRecorder(_oop_recorder);
817   _debug_recorder->set_oopmaps(new OopMapSet());
818 
819   buffer.initialize_oop_recorder(_oop_recorder);
820 
821   // copy the constant data into the newly created CodeBuffer
822   address end_data = _constants->start() + _constants_size;
823   JVMCIENV->copy_bytes_to(data_section(), (jbyte*) _constants->start(), 0, _constants_size);
824   _constants->set_end(end_data);
825 
826   // copy the code into the newly created CodeBuffer
827   address end_pc = _instructions->start() + _code_size;
828   guarantee(_instructions->allocates2(end_pc), "initialize should have reserved enough space for all the code");
829   JVMCIENV->copy_bytes_to(code(), (jbyte*) _instructions->start(), 0, _code_size);
830   _instructions->set_end(end_pc);
831 
832   for (int i = 0; i < JVMCIENV->get_length(data_section_patches()); i++) {
833     // HandleMark hm(THREAD);
834     JVMCIObject patch = JVMCIENV->get_object_at(data_section_patches(), i);
835     if (patch.is_null()) {
836       JVMCI_THROW_(NullPointerException, JVMCI::ok);
837     }
838     JVMCIObject reference = jvmci_env()->get_site_DataPatch_reference(patch);
839     if (reference.is_null()) {
840       JVMCI_THROW_(NullPointerException, JVMCI::ok);
841     }
842     if (!jvmci_env()->isa_site_ConstantReference(reference)) {
843       JVMCI_ERROR_OK("invalid patch in data section: %s", jvmci_env()->klass_name(reference));
844     }
845     JVMCIObject constant = jvmci_env()->get_site_ConstantReference_constant(reference);
846     if (constant.is_null()) {
847       JVMCI_THROW_(NullPointerException, JVMCI::ok);
848     }
849     address dest = _constants->start() + jvmci_env()->get_site_Site_pcOffset(patch);
850     if (jvmci_env()->isa_HotSpotMetaspaceConstantImpl(constant)) {
851       if (jvmci_env()->get_HotSpotMetaspaceConstantImpl_compressed(constant)) {
852 #ifdef _LP64
853         *((narrowKlass*) dest) = record_narrow_metadata_reference(_constants, dest, constant, JVMCI_CHECK_OK);
854 #else
855         JVMCI_ERROR_OK("unexpected compressed Klass* in 32-bit mode");
856 #endif
857       } else {
858         *((void**) dest) = record_metadata_reference(_constants, dest, constant, JVMCI_CHECK_OK);
859       }
860     } else if (jvmci_env()->isa_HotSpotObjectConstantImpl(constant)) {
861       Handle obj = jvmci_env()->asConstant(constant, JVMCI_CHECK_OK);
862       jobject value = JNIHandles::make_local(obj());
863       int oop_index = _oop_recorder->find_index(value);
864 
865       if (jvmci_env()->get_HotSpotObjectConstantImpl_compressed(constant)) {
866 #ifdef _LP64
867         _constants->relocate(dest, oop_Relocation::spec(oop_index), relocInfo::narrow_oop_in_const);
868 #else
869         JVMCI_ERROR_OK("unexpected compressed oop in 32-bit mode");
870 #endif
871       } else {
872         _constants->relocate(dest, oop_Relocation::spec(oop_index));
873       }
874     } else {
875       JVMCI_ERROR_OK("invalid constant in data section: %s", jvmci_env()->klass_name(constant));
876     }
877   }
878   jint last_pc_offset = -1;
879   for (int i = 0; i < JVMCIENV->get_length(sites); i++) {
880     // HandleMark hm(THREAD);
881     JVMCIObject site = JVMCIENV->get_object_at(sites, i);
882     if (site.is_null()) {
883       JVMCI_THROW_(NullPointerException, JVMCI::ok);
884     }
885 
886     jint pc_offset = jvmci_env()->get_site_Site_pcOffset(site);
887 
888     if (jvmci_env()->isa_site_Call(site)) {
889       JVMCI_event_4("call at %i", pc_offset);
890       site_Call(buffer, pc_offset, site, JVMCI_CHECK_OK);
891     } else if (jvmci_env()->isa_site_Infopoint(site)) {
892       // three reasons for infopoints denote actual safepoints
893       JVMCIObject reason = jvmci_env()->get_site_Infopoint_reason(site);
894       if (JVMCIENV->equals(reason, jvmci_env()->get_site_InfopointReason_SAFEPOINT()) ||
895           JVMCIENV->equals(reason, jvmci_env()->get_site_InfopointReason_CALL()) ||
896           JVMCIENV->equals(reason, jvmci_env()->get_site_InfopointReason_IMPLICIT_EXCEPTION())) {
897         JVMCI_event_4("safepoint at %i", pc_offset);
898         site_Safepoint(buffer, pc_offset, site, JVMCI_CHECK_OK);
899         if (_orig_pc_offset < 0) {
900           JVMCI_ERROR_OK("method contains safepoint, but has no deopt rescue slot");
901         }
902         if (JVMCIENV->equals(reason, jvmci_env()->get_site_InfopointReason_IMPLICIT_EXCEPTION())) {
903           if (jvmci_env()->isa_site_ImplicitExceptionDispatch(site)) {
904             jint dispatch_offset = jvmci_env()->get_site_ImplicitExceptionDispatch_dispatchOffset(site);
905             JVMCI_event_4("implicit exception at %i, dispatch to %i", pc_offset, dispatch_offset);
906             _implicit_exception_table.append(pc_offset, dispatch_offset);
907           } else {
908             JVMCI_event_4("implicit exception at %i", pc_offset);
909             _implicit_exception_table.add_deoptimize(pc_offset);
910           }
911         }
912       } else {
913         JVMCI_event_4("infopoint at %i", pc_offset);
914         site_Infopoint(buffer, pc_offset, site, JVMCI_CHECK_OK);
915       }
916     } else if (jvmci_env()->isa_site_DataPatch(site)) {
917       JVMCI_event_4("datapatch at %i", pc_offset);
918       site_DataPatch(buffer, pc_offset, site, JVMCI_CHECK_OK);
919     } else if (jvmci_env()->isa_site_Mark(site)) {
920       JVMCI_event_4("mark at %i", pc_offset);
921       site_Mark(buffer, pc_offset, site, JVMCI_CHECK_OK);
922     } else if (jvmci_env()->isa_site_ExceptionHandler(site)) {
923       JVMCI_event_4("exceptionhandler at %i", pc_offset);
924       site_ExceptionHandler(pc_offset, site);
925     } else {
926       JVMCI_ERROR_OK("unexpected site subclass: %s", jvmci_env()->klass_name(site));
927     }
928     last_pc_offset = pc_offset;
929 
930     JavaThread* thread = JavaThread::current();
931     if (SafepointMechanism::should_process(thread)) {
932       // this is a hacky way to force a safepoint check but nothing else was jumping out at me.
933       ThreadToNativeFromVM ttnfv(thread);
934     }
935   }
936 
937 #ifndef PRODUCT
938   if (comments().is_non_null()) {
939     for (int i = 0; i < JVMCIENV->get_length(comments()); i++) {
940       JVMCIObject comment = JVMCIENV->get_object_at(comments(), i);
941       assert(jvmci_env()->isa_HotSpotCompiledCode_Comment(comment), "cce");
942       jint offset = jvmci_env()->get_HotSpotCompiledCode_Comment_pcOffset(comment);
943       const char* text = jvmci_env()->as_utf8_string(jvmci_env()->get_HotSpotCompiledCode_Comment_text(comment));
944       buffer.block_comment(offset, text);
945     }
946   }
947 #endif
948   if (_has_auto_box) {
949     JavaThread* THREAD = JavaThread::current();
950     JVMCI::ensure_box_caches_initialized(CHECK_(JVMCI::ok));
951   }
952   return JVMCI::ok;
953 }
954 
955 void CodeInstaller::assumption_NoFinalizableSubclass(JVMCIObject assumption) {
956   JVMCIObject receiverType_handle = jvmci_env()->get_Assumptions_NoFinalizableSubclass_receiverType(assumption);
957   Klass* receiverType = jvmci_env()->asKlass(receiverType_handle);
958   _dependencies->assert_has_no_finalizable_subclasses(receiverType);
959 }
960 
961 void CodeInstaller::assumption_ConcreteSubtype(JVMCIObject assumption) {
962   JVMCIObject context_handle = jvmci_env()->get_Assumptions_ConcreteSubtype_context(assumption);
963   JVMCIObject subtype_handle = jvmci_env()->get_Assumptions_ConcreteSubtype_subtype(assumption);
964   Klass* context = jvmci_env()->asKlass(context_handle);
965   Klass* subtype = jvmci_env()->asKlass(subtype_handle);
966 
967   assert(context->is_abstract(), "");
968   _dependencies->assert_abstract_with_unique_concrete_subtype(context, subtype);
969 }
970 
971 void CodeInstaller::assumption_LeafType(JVMCIObject assumption) {
972   JVMCIObject context_handle = jvmci_env()->get_Assumptions_LeafType_context(assumption);
973   Klass* context = jvmci_env()->asKlass(context_handle);
974 
975   _dependencies->assert_leaf_type(context);
976 }
977 
978 void CodeInstaller::assumption_ConcreteMethod(JVMCIObject assumption) {
979   JVMCIObject impl_handle = jvmci_env()->get_Assumptions_ConcreteMethod_impl(assumption);
980   JVMCIObject context_handle = jvmci_env()->get_Assumptions_ConcreteMethod_context(assumption);
981 
982   Method* impl = jvmci_env()->asMethod(impl_handle);
983   Klass* context = jvmci_env()->asKlass(context_handle);
984 
985   _dependencies->assert_unique_concrete_method(context, impl);
986 }
987 
988 void CodeInstaller::assumption_CallSiteTargetValue(JVMCIObject assumption, JVMCI_TRAPS) {
989   JVMCIObject callSiteConstant = jvmci_env()->get_Assumptions_CallSiteTargetValue_callSite(assumption);
990   Handle callSite = jvmci_env()->asConstant(callSiteConstant, JVMCI_CHECK);
991   JVMCIObject methodConstant = jvmci_env()->get_Assumptions_CallSiteTargetValue_methodHandle(assumption);
992   Handle methodHandle = jvmci_env()->asConstant(methodConstant, JVMCI_CHECK);
993   _dependencies->assert_call_site_target_value(callSite(), methodHandle());
994 }
995 
996 void CodeInstaller::site_ExceptionHandler(jint pc_offset, JVMCIObject exc) {
997   jint handler_offset = jvmci_env()->get_site_ExceptionHandler_handlerPos(exc);
998 
999   // Subtable header
1000   _exception_handler_table.add_entry(HandlerTableEntry(1, pc_offset, 0));
1001 
1002   // Subtable entry
1003   _exception_handler_table.add_entry(HandlerTableEntry(-1, handler_offset, 0));
1004 }
1005 
1006 // If deoptimization happens, the interpreter should reexecute these bytecodes.
1007 // This function mainly helps the compilers to set up the reexecute bit.
1008 static bool bytecode_should_reexecute(Bytecodes::Code code) {
1009   switch (code) {
1010     case Bytecodes::_invokedynamic:
1011     case Bytecodes::_invokevirtual:
1012     case Bytecodes::_invokeinterface:
1013     case Bytecodes::_invokespecial:
1014     case Bytecodes::_invokestatic:
1015       return false;
1016     default:
1017       return true;
1018     }
1019   return true;
1020 }
1021 
1022 GrowableArray<ScopeValue*>* CodeInstaller::record_virtual_objects(JVMCIObject debug_info, JVMCI_TRAPS) {
1023   JVMCIObjectArray virtualObjects = jvmci_env()->get_DebugInfo_virtualObjectMapping(debug_info);
1024   if (virtualObjects.is_null()) {
1025     return NULL;
1026   }
1027   GrowableArray<ScopeValue*>* objects = new GrowableArray<ScopeValue*>(JVMCIENV->get_length(virtualObjects), JVMCIENV->get_length(virtualObjects), NULL);
1028   // Create the unique ObjectValues
1029   for (int i = 0; i < JVMCIENV->get_length(virtualObjects); i++) {
1030     // HandleMark hm(THREAD);
1031     JVMCIObject value = JVMCIENV->get_object_at(virtualObjects, i);
1032     int id = jvmci_env()->get_VirtualObject_id(value);
1033     JVMCIObject type = jvmci_env()->get_VirtualObject_type(value);
1034     bool is_auto_box = jvmci_env()->get_VirtualObject_isAutoBox(value);
1035     if (is_auto_box) {
1036       _has_auto_box = true;
1037     }
1038     Klass* klass = jvmci_env()->asKlass(type);
1039     oop javaMirror = klass->java_mirror();
1040     ScopeValue *klass_sv = new ConstantOopWriteValue(JNIHandles::make_local(Thread::current(), javaMirror));
1041     ObjectValue* sv = is_auto_box ? new AutoBoxObjectValue(id, klass_sv) : new ObjectValue(id, klass_sv);
1042     if (id < 0 || id >= objects->length()) {
1043       JVMCI_ERROR_NULL("virtual object id %d out of bounds", id);
1044     }
1045     if (objects->at(id) != NULL) {
1046       JVMCI_ERROR_NULL("duplicate virtual object id %d", id);
1047     }
1048     objects->at_put(id, sv);
1049   }
1050   // All the values which could be referenced by the VirtualObjects
1051   // exist, so now describe all the VirtualObjects themselves.
1052   for (int i = 0; i < JVMCIENV->get_length(virtualObjects); i++) {
1053     // HandleMark hm(THREAD);
1054     JVMCIObject value = JVMCIENV->get_object_at(virtualObjects, i);
1055     int id = jvmci_env()->get_VirtualObject_id(value);
1056     record_object_value(objects->at(id)->as_ObjectValue(), value, objects, JVMCI_CHECK_NULL);
1057   }
1058   _debug_recorder->dump_object_pool(objects);
1059 
1060   return objects;
1061 }
1062 
1063 void CodeInstaller::record_scope(jint pc_offset, JVMCIObject debug_info, ScopeMode scope_mode, bool is_mh_invoke, bool return_oop, JVMCI_TRAPS) {
1064   JVMCIObject position = jvmci_env()->get_DebugInfo_bytecodePosition(debug_info);
1065   if (position.is_null()) {
1066     // Stubs do not record scope info, just oop maps
1067     return;
1068   }
1069 
1070   GrowableArray<ScopeValue*>* objectMapping;
1071   if (scope_mode == CodeInstaller::FullFrame) {
1072     objectMapping = record_virtual_objects(debug_info, JVMCI_CHECK);
1073   } else {
1074     objectMapping = NULL;
1075   }
1076   record_scope(pc_offset, position, scope_mode, objectMapping, is_mh_invoke, return_oop, JVMCI_CHECK);
1077 }
1078 
1079 int CodeInstaller::map_jvmci_bci(int bci) {
1080   if (bci < 0) {
1081     if (bci == jvmci_env()->get_BytecodeFrame_BEFORE_BCI()) {
1082       return BeforeBci;
1083     } else if (bci == jvmci_env()->get_BytecodeFrame_AFTER_BCI()) {
1084       return AfterBci;
1085     } else if (bci == jvmci_env()->get_BytecodeFrame_UNWIND_BCI()) {
1086       return UnwindBci;
1087     } else if (bci == jvmci_env()->get_BytecodeFrame_AFTER_EXCEPTION_BCI()) {
1088       return AfterExceptionBci;
1089     } else if (bci == jvmci_env()->get_BytecodeFrame_UNKNOWN_BCI()) {
1090       return UnknownBci;
1091     } else if (bci == jvmci_env()->get_BytecodeFrame_INVALID_FRAMESTATE_BCI()) {
1092       return InvalidFrameStateBci;
1093     }
1094     ShouldNotReachHere();
1095   }
1096   return bci;
1097 }
1098 
1099 void CodeInstaller::record_scope(jint pc_offset, JVMCIObject position, ScopeMode scope_mode, GrowableArray<ScopeValue*>* objects, bool is_mh_invoke, bool return_oop, JVMCI_TRAPS) {
1100   JVMCIObject frame;
1101   if (scope_mode == CodeInstaller::FullFrame) {
1102     if (!jvmci_env()->isa_BytecodeFrame(position)) {
1103       JVMCI_ERROR("Full frame expected for debug info at %i", pc_offset);
1104     }
1105     frame = position;
1106   }
1107   JVMCIObject caller_frame = jvmci_env()->get_BytecodePosition_caller(position);
1108   if (caller_frame.is_non_null()) {
1109     record_scope(pc_offset, caller_frame, scope_mode, objects, is_mh_invoke, return_oop, JVMCI_CHECK);
1110   }
1111 
1112   JVMCIObject hotspot_method = jvmci_env()->get_BytecodePosition_method(position);
1113   Thread* thread = Thread::current();
1114   methodHandle method(thread, jvmci_env()->asMethod(hotspot_method));
1115   jint bci = map_jvmci_bci(jvmci_env()->get_BytecodePosition_bci(position));
1116   if (bci == jvmci_env()->get_BytecodeFrame_BEFORE_BCI()) {
1117     bci = SynchronizationEntryBCI;
1118   }
1119 
1120   JVMCI_event_2("Recording scope pc_offset=%d bci=%d method=%s", pc_offset, bci, method->name_and_sig_as_C_string());
1121 
1122   bool reexecute = false;
1123   if (frame.is_non_null()) {
1124     if (bci < 0){
1125        reexecute = false;
1126     } else {
1127       Bytecodes::Code code = Bytecodes::java_code_at(method(), method->bcp_from(bci));
1128       reexecute = bytecode_should_reexecute(code);
1129       if (frame.is_non_null()) {
1130         reexecute = (jvmci_env()->get_BytecodeFrame_duringCall(frame) == JNI_FALSE);
1131       }
1132     }
1133   }
1134 
1135   DebugToken* locals_token = NULL;
1136   DebugToken* expressions_token = NULL;
1137   DebugToken* monitors_token = NULL;
1138   bool throw_exception = false;
1139 
1140   if (frame.is_non_null()) {
1141     jint local_count = jvmci_env()->get_BytecodeFrame_numLocals(frame);
1142     jint expression_count = jvmci_env()->get_BytecodeFrame_numStack(frame);
1143     jint monitor_count = jvmci_env()->get_BytecodeFrame_numLocks(frame);
1144     JVMCIObjectArray values = jvmci_env()->get_BytecodeFrame_values(frame);
1145     JVMCIObjectArray slotKinds = jvmci_env()->get_BytecodeFrame_slotKinds(frame);
1146 
1147     if (values.is_null() || slotKinds.is_null()) {
1148       JVMCI_THROW(NullPointerException);
1149     }
1150     if (local_count + expression_count + monitor_count != JVMCIENV->get_length(values)) {
1151       JVMCI_ERROR("unexpected values length %d in scope (%d locals, %d expressions, %d monitors)", JVMCIENV->get_length(values), local_count, expression_count, monitor_count);
1152     }
1153     if (local_count + expression_count != JVMCIENV->get_length(slotKinds)) {
1154       JVMCI_ERROR("unexpected slotKinds length %d in scope (%d locals, %d expressions)", JVMCIENV->get_length(slotKinds), local_count, expression_count);
1155     }
1156 
1157     GrowableArray<ScopeValue*>* locals = local_count > 0 ? new GrowableArray<ScopeValue*> (local_count) : NULL;
1158     GrowableArray<ScopeValue*>* expressions = expression_count > 0 ? new GrowableArray<ScopeValue*> (expression_count) : NULL;
1159     GrowableArray<MonitorValue*>* monitors = monitor_count > 0 ? new GrowableArray<MonitorValue*> (monitor_count) : NULL;
1160 
1161     JVMCI_event_2("Scope at bci %d with %d values", bci, JVMCIENV->get_length(values));
1162     JVMCI_event_2("%d locals %d expressions, %d monitors", local_count, expression_count, monitor_count);
1163 
1164     for (jint i = 0; i < JVMCIENV->get_length(values); i++) {
1165       // HandleMark hm(THREAD);
1166       ScopeValue* second = NULL;
1167       JVMCIObject value = JVMCIENV->get_object_at(values, i);
1168       if (i < local_count) {
1169         BasicType type = jvmci_env()->kindToBasicType(JVMCIENV->get_object_at(slotKinds, i), JVMCI_CHECK);
1170         ScopeValue* first = get_scope_value(value, type, objects, second, JVMCI_CHECK);
1171         if (second != NULL) {
1172           locals->append(second);
1173         }
1174         locals->append(first);
1175       } else if (i < local_count + expression_count) {
1176         BasicType type = jvmci_env()->kindToBasicType(JVMCIENV->get_object_at(slotKinds, i), JVMCI_CHECK);
1177         ScopeValue* first = get_scope_value(value, type, objects, second, JVMCI_CHECK);
1178         if (second != NULL) {
1179           expressions->append(second);
1180         }
1181         expressions->append(first);
1182       } else {
1183         MonitorValue *monitor = get_monitor_value(value, objects, JVMCI_CHECK);
1184         monitors->append(monitor);
1185       }
1186       if (second != NULL) {
1187         i++;
1188         if (i >= JVMCIENV->get_length(values) || !JVMCIENV->equals(JVMCIENV->get_object_at(values, i), jvmci_env()->get_Value_ILLEGAL())) {
1189           JVMCI_ERROR("double-slot value not followed by Value.ILLEGAL");
1190         }
1191       }
1192     }
1193 
1194     locals_token = _debug_recorder->create_scope_values(locals);
1195     expressions_token = _debug_recorder->create_scope_values(expressions);
1196     monitors_token = _debug_recorder->create_monitor_values(monitors);
1197 
1198     throw_exception = jvmci_env()->get_BytecodeFrame_rethrowException(frame) == JNI_TRUE;
1199   }
1200 
1201   // has_ea_local_in_scope and arg_escape should be added to JVMCI
1202   const bool is_opt_native         = false;
1203   const bool has_ea_local_in_scope = false;
1204   const bool arg_escape            = false;
1205   _debug_recorder->describe_scope(pc_offset, method, NULL, bci, reexecute, throw_exception, is_mh_invoke, is_opt_native, return_oop,
1206                                   has_ea_local_in_scope, arg_escape,
1207                                   locals_token, expressions_token, monitors_token);
1208 }
1209 
1210 void CodeInstaller::site_Safepoint(CodeBuffer& buffer, jint pc_offset, JVMCIObject site, JVMCI_TRAPS) {
1211   JVMCIObject debug_info = jvmci_env()->get_site_Infopoint_debugInfo(site);
1212   if (debug_info.is_null()) {
1213     JVMCI_ERROR("debug info expected at safepoint at %i", pc_offset);
1214   }
1215 
1216   // address instruction = _instructions->start() + pc_offset;
1217   // jint next_pc_offset = Assembler::locate_next_instruction(instruction) - _instructions->start();
1218   OopMap *map = create_oop_map(debug_info, JVMCI_CHECK);
1219   _debug_recorder->add_safepoint(pc_offset, map);
1220   record_scope(pc_offset, debug_info, CodeInstaller::FullFrame, JVMCI_CHECK);
1221   _debug_recorder->end_safepoint(pc_offset);
1222 }
1223 
1224 void CodeInstaller::site_Infopoint(CodeBuffer& buffer, jint pc_offset, JVMCIObject site, JVMCI_TRAPS) {
1225   JVMCIObject debug_info = jvmci_env()->get_site_Infopoint_debugInfo(site);
1226   if (debug_info.is_null()) {
1227     JVMCI_ERROR("debug info expected at infopoint at %i", pc_offset);
1228   }
1229 
1230   // We'd like to check that pc_offset is greater than the
1231   // last pc recorded with _debug_recorder (raising an exception if not)
1232   // but DebugInformationRecorder doesn't have sufficient public API.
1233 
1234   _debug_recorder->add_non_safepoint(pc_offset);
1235   record_scope(pc_offset, debug_info, CodeInstaller::BytecodePosition, JVMCI_CHECK);
1236   _debug_recorder->end_non_safepoint(pc_offset);
1237 }
1238 
1239 void CodeInstaller::site_Call(CodeBuffer& buffer, jint pc_offset, JVMCIObject site, JVMCI_TRAPS) {
1240   JVMCIObject target = jvmci_env()->get_site_Call_target(site);
1241   JVMCIObject hotspot_method; // JavaMethod
1242   JVMCIObject foreign_call;
1243 
1244   if (jvmci_env()->isa_HotSpotForeignCallTarget(target)) {
1245     foreign_call = target;
1246   } else {
1247     hotspot_method = target;
1248   }
1249 
1250   JVMCIObject debug_info = jvmci_env()->get_site_Infopoint_debugInfo(site);
1251 
1252   assert(hotspot_method.is_non_null() ^ foreign_call.is_non_null(), "Call site needs exactly one type");
1253 
1254   NativeInstruction* inst = nativeInstruction_at(_instructions->start() + pc_offset);
1255   jint next_pc_offset = CodeInstaller::pd_next_offset(inst, pc_offset, hotspot_method, JVMCI_CHECK);
1256 
1257   if (debug_info.is_non_null()) {
1258     OopMap *map = create_oop_map(debug_info, JVMCI_CHECK);
1259     _debug_recorder->add_safepoint(next_pc_offset, map);
1260 
1261     if (hotspot_method.is_non_null()) {
1262       Method *method = jvmci_env()->asMethod(hotspot_method);
1263       vmIntrinsics::ID iid = method->intrinsic_id();
1264       bool is_mh_invoke = false;
1265       if (jvmci_env()->get_site_Call_direct(site)) {
1266         is_mh_invoke = !method->is_static() && (iid == vmIntrinsics::_compiledLambdaForm ||
1267                 (MethodHandles::is_signature_polymorphic(iid) && MethodHandles::is_signature_polymorphic_intrinsic(iid)));
1268       }
1269       bool return_oop = method->is_returning_oop();
1270       record_scope(next_pc_offset, debug_info, CodeInstaller::FullFrame, is_mh_invoke, return_oop, JVMCI_CHECK);
1271     } else {
1272       record_scope(next_pc_offset, debug_info, CodeInstaller::FullFrame, JVMCI_CHECK);
1273     }
1274   }
1275 
1276   if (foreign_call.is_non_null()) {
1277     jlong foreign_call_destination = jvmci_env()->get_HotSpotForeignCallTarget_address(foreign_call);
1278     if (_immutable_pic_compilation) {
1279       // Use fake short distance during PIC compilation.
1280       foreign_call_destination = (jlong)(_instructions->start() + pc_offset);
1281     }
1282     CodeInstaller::pd_relocate_ForeignCall(inst, foreign_call_destination, JVMCI_CHECK);
1283   } else { // method != NULL
1284     if (debug_info.is_null()) {
1285       JVMCI_ERROR("debug info expected at call at %i", pc_offset);
1286     }
1287 
1288     JVMCI_event_3("method call");
1289     CodeInstaller::pd_relocate_JavaMethod(buffer, hotspot_method, pc_offset, JVMCI_CHECK);
1290     if (_next_call_type == INVOKESTATIC || _next_call_type == INVOKESPECIAL) {
1291       // Need a static call stub for transitions from compiled to interpreted.
1292       CompiledStaticCall::emit_to_interp_stub(buffer, _instructions->start() + pc_offset);
1293     }
1294 #if INCLUDE_AOT
1295     // Trampoline to far aot code.
1296     CompiledStaticCall::emit_to_aot_stub(buffer, _instructions->start() + pc_offset);
1297 #endif
1298   }
1299 
1300   _next_call_type = INVOKE_INVALID;
1301 
1302   if (debug_info.is_non_null()) {
1303     _debug_recorder->end_safepoint(next_pc_offset);
1304   }
1305 }
1306 
1307 void CodeInstaller::site_DataPatch(CodeBuffer& buffer, jint pc_offset, JVMCIObject site, JVMCI_TRAPS) {
1308   JVMCIObject reference = jvmci_env()->get_site_DataPatch_reference(site);
1309   if (reference.is_null()) {
1310     JVMCI_THROW(NullPointerException);
1311   } else if (jvmci_env()->isa_site_ConstantReference(reference)) {
1312     JVMCIObject constant = jvmci_env()->get_site_ConstantReference_constant(reference);
1313     if (constant.is_null()) {
1314       JVMCI_THROW(NullPointerException);
1315     } else if (jvmci_env()->isa_DirectHotSpotObjectConstantImpl(constant)) {
1316       if (!JVMCIENV->is_hotspot()) {
1317         JVMCIObject string = JVMCIENV->call_HotSpotJVMCIRuntime_callToString(constant, JVMCI_CHECK);
1318         const char* to_string = JVMCIENV->as_utf8_string(string);
1319         JVMCI_THROW_MSG(IllegalArgumentException, err_msg("Direct object constant reached the backend: %s", to_string));
1320       }
1321       if (!_immutable_pic_compilation) {
1322         // Do not patch during PIC compilation.
1323         pd_patch_OopConstant(pc_offset, constant, JVMCI_CHECK);
1324       }
1325     } else if (jvmci_env()->isa_IndirectHotSpotObjectConstantImpl(constant)) {
1326       if (!_immutable_pic_compilation) {
1327         // Do not patch during PIC compilation.
1328         pd_patch_OopConstant(pc_offset, constant, JVMCI_CHECK);
1329       }
1330     } else if (jvmci_env()->isa_HotSpotMetaspaceConstantImpl(constant)) {
1331       if (!_immutable_pic_compilation) {
1332         pd_patch_MetaspaceConstant(pc_offset, constant, JVMCI_CHECK);
1333       }
1334 #if INCLUDE_AOT
1335     } else if (jvmci_env()->isa_HotSpotSentinelConstant(constant)) {
1336       if (!_immutable_pic_compilation) {
1337         JVMCI_ERROR("sentinel constant not supported for normal compiles: %s", jvmci_env()->klass_name(constant));
1338       }
1339 #endif
1340     } else {
1341       JVMCI_ERROR("unknown constant type in data patch: %s", jvmci_env()->klass_name(constant));
1342     }
1343   } else if (jvmci_env()->isa_site_DataSectionReference(reference)) {
1344     int data_offset = jvmci_env()->get_site_DataSectionReference_offset(reference);
1345     if (0 <= data_offset && data_offset < _constants_size) {
1346       pd_patch_DataSectionReference(pc_offset, data_offset, JVMCI_CHECK);
1347     } else {
1348       JVMCI_ERROR("data offset 0x%X points outside data section (size 0x%X)", data_offset, _constants_size);
1349     }
1350   } else {
1351     JVMCI_ERROR("unknown data patch type: %s", jvmci_env()->klass_name(reference));
1352   }
1353 }
1354 
1355 void CodeInstaller::site_Mark(CodeBuffer& buffer, jint pc_offset, JVMCIObject site, JVMCI_TRAPS) {
1356   JVMCIObject id_obj = jvmci_env()->get_site_Mark_id(site);
1357 
1358   if (id_obj.is_non_null()) {
1359     if (!jvmci_env()->is_boxing_object(T_INT, id_obj)) {
1360       JVMCI_ERROR("expected Integer id, got %s", jvmci_env()->klass_name(id_obj));
1361     }
1362     jint id = jvmci_env()->get_boxed_value(T_INT, id_obj).i;
1363 
1364     address pc = _instructions->start() + pc_offset;
1365 
1366     switch (id) {
1367       case UNVERIFIED_ENTRY:
1368         _offsets.set_value(CodeOffsets::Entry, pc_offset);
1369         break;
1370       case VERIFIED_ENTRY:
1371         _offsets.set_value(CodeOffsets::Verified_Entry, pc_offset);
1372         break;
1373       case OSR_ENTRY:
1374         _offsets.set_value(CodeOffsets::OSR_Entry, pc_offset);
1375         break;
1376       case EXCEPTION_HANDLER_ENTRY:
1377         _offsets.set_value(CodeOffsets::Exceptions, pc_offset);
1378         break;
1379       case DEOPT_HANDLER_ENTRY:
1380         _offsets.set_value(CodeOffsets::Deopt, pc_offset);
1381         break;
1382       case DEOPT_MH_HANDLER_ENTRY:
1383         _offsets.set_value(CodeOffsets::DeoptMH, pc_offset);
1384         break;
1385       case FRAME_COMPLETE:
1386         _offsets.set_value(CodeOffsets::Frame_Complete, pc_offset);
1387         break;
1388       case INVOKEVIRTUAL:
1389       case INVOKEINTERFACE:
1390       case INLINE_INVOKE:
1391       case INVOKESTATIC:
1392       case INVOKESPECIAL:
1393         _next_call_type = (MarkId) id;
1394         _invoke_mark_pc = pc;
1395         break;
1396       case POLL_NEAR:
1397       case POLL_FAR:
1398       case POLL_RETURN_NEAR:
1399       case POLL_RETURN_FAR:
1400         pd_relocate_poll(pc, id, JVMCI_CHECK);
1401         break;
1402       case CARD_TABLE_SHIFT:
1403       case CARD_TABLE_ADDRESS:
1404       case HEAP_TOP_ADDRESS:
1405       case HEAP_END_ADDRESS:
1406       case NARROW_KLASS_BASE_ADDRESS:
1407       case NARROW_OOP_BASE_ADDRESS:
1408       case CRC_TABLE_ADDRESS:
1409       case LOG_OF_HEAP_REGION_GRAIN_BYTES:
1410       case INLINE_CONTIGUOUS_ALLOCATION_SUPPORTED:
1411       case VERIFY_OOPS:
1412       case VERIFY_OOP_BITS:
1413       case VERIFY_OOP_MASK:
1414       case VERIFY_OOP_COUNT_ADDRESS:
1415         break;
1416       default:
1417         JVMCI_ERROR("invalid mark id: %d", id);
1418         break;
1419     }
1420   }
1421 }
1422