152 };
153
154
155 // only the classes below belong in the same file
156 class LIRGenerator: public InstructionVisitor, public BlockClosure {
157 // LIRGenerator should never get instatiated on the heap.
158 private:
159 void* operator new(size_t size) throw();
160 void* operator new[](size_t size) throw();
161 void operator delete(void* p) { ShouldNotReachHere(); }
162 void operator delete[](void* p) { ShouldNotReachHere(); }
163
164 Compilation* _compilation;
165 ciMethod* _method; // method that we are compiling
166 PhiResolverState _resolver_state;
167 BlockBegin* _block;
168 int _virtual_register_number;
169 Values _instruction_for_operand;
170 BitMap2D _vreg_flags; // flags which can be set on a per-vreg basis
171 LIR_List* _lir;
172
173 LIRGenerator* gen() {
174 return this;
175 }
176
177 void print_if_not_loaded(const NewInstance* new_instance) PRODUCT_RETURN;
178
179 public:
180 #ifdef ASSERT
181 LIR_List* lir(const char * file, int line) const {
182 _lir->set_file_and_line(file, line);
183 return _lir;
184 }
185 #endif
186 LIR_List* lir() const {
187 return _lir;
188 }
189
190 private:
191 // a simple cache of constants used within a block
192 GrowableArray<LIR_Const*> _constants;
193 LIR_OprList _reg_for_constants;
194 Values _unpinned_constants;
195
196 friend class PhiResolver;
197
198 public:
199 // unified bailout support
200 void bailout(const char* msg) const { compilation()->bailout(msg); }
201 bool bailed_out() const { return compilation()->bailed_out(); }
202
203 void block_do_prolog(BlockBegin* block);
204 void block_do_epilog(BlockBegin* block);
205
206 // register allocation
207 LIR_Opr rlock(Value instr); // lock a free register
208 LIR_Opr rlock_result(Value instr);
209 LIR_Opr rlock_result(Value instr, BasicType type);
210 LIR_Opr rlock_byte(BasicType type);
211 LIR_Opr rlock_callee_saved(BasicType type);
212
213 // get a constant into a register and get track of what register was used
214 LIR_Opr load_constant(Constant* x);
215 LIR_Opr load_constant(LIR_Const* constant);
216
217 // Given an immediate value, return an operand usable in logical ops.
218 LIR_Opr load_immediate(jlong x, BasicType type);
219
220 void set_result(Value x, LIR_Opr opr) {
221 assert(opr->is_valid(), "must set to valid value");
222 assert(x->operand()->is_illegal(), "operand should never change");
223 assert(!opr->is_register() || opr->is_virtual(), "should never set result to a physical register");
224 x->set_operand(opr);
225 assert(opr == x->operand(), "must be");
226 if (opr->is_virtual()) {
227 _instruction_for_operand.at_put_grow(opr->vreg_number(), x, nullptr);
228 }
229 }
230 void set_no_result(Value x) { assert(!x->has_uses(), "can't have use"); x->clear_operand(); }
231
232 friend class LIRItem;
233
234 LIR_Opr round_item(LIR_Opr opr);
235 LIR_Opr force_to_spill(LIR_Opr value, BasicType t);
236
256 void do_getModifiers(Intrinsic* x);
257 void do_getClass(Intrinsic* x);
258 void do_getObjectSize(Intrinsic* x);
259 void do_currentCarrierThread(Intrinsic* x);
260 void do_scopedValueCache(Intrinsic* x);
261 void do_vthread(Intrinsic* x);
262 void do_JavaThreadField(Intrinsic* x, ByteSize offset);
263 void do_FmaIntrinsic(Intrinsic* x);
264 void do_MathIntrinsic(Intrinsic* x);
265 void do_LibmIntrinsic(Intrinsic* x);
266 void do_ArrayCopy(Intrinsic* x);
267 void do_CompareAndSwap(Intrinsic* x, ValueType* type);
268 void do_PreconditionsCheckIndex(Intrinsic* x, BasicType type);
269 void do_FPIntrinsics(Intrinsic* x);
270 void do_Reference_get(Intrinsic* x);
271 void do_update_CRC32(Intrinsic* x);
272 void do_update_CRC32C(Intrinsic* x);
273 void do_vectorizedMismatch(Intrinsic* x);
274 void do_blackhole(Intrinsic* x);
275
276 public:
277 LIR_Opr call_runtime(BasicTypeArray* signature, LIRItemList* args, address entry, ValueType* result_type, CodeEmitInfo* info);
278 LIR_Opr call_runtime(BasicTypeArray* signature, LIR_OprList* args, address entry, ValueType* result_type, CodeEmitInfo* info);
279
280 // convenience functions
281 LIR_Opr call_runtime(Value arg1, address entry, ValueType* result_type, CodeEmitInfo* info);
282 LIR_Opr call_runtime(Value arg1, Value arg2, address entry, ValueType* result_type, CodeEmitInfo* info);
283
284 // Access API
285
286 private:
287 BarrierSetC1 *_barrier_set;
288
289 public:
290 void access_store_at(DecoratorSet decorators, BasicType type,
291 LIRItem& base, LIR_Opr offset, LIR_Opr value,
292 CodeEmitInfo* patch_info = nullptr, CodeEmitInfo* store_emit_info = nullptr);
293
294 void access_load_at(DecoratorSet decorators, BasicType type,
295 LIRItem& base, LIR_Opr offset, LIR_Opr result,
309
310 // These need to guarantee JMM volatile semantics are preserved on each platform
311 // and requires one implementation per architecture.
312 LIR_Opr atomic_cmpxchg(BasicType type, LIR_Opr addr, LIRItem& cmp_value, LIRItem& new_value);
313 LIR_Opr atomic_xchg(BasicType type, LIR_Opr addr, LIRItem& new_value);
314 LIR_Opr atomic_add(BasicType type, LIR_Opr addr, LIRItem& new_value);
315
316 #ifdef CARDTABLEBARRIERSET_POST_BARRIER_HELPER
317 virtual void CardTableBarrierSet_post_barrier_helper(LIR_Opr addr, LIR_Const* card_table_base);
318 #endif
319
320 // specific implementations
321 void array_store_check(LIR_Opr value, LIR_Opr array, CodeEmitInfo* store_check_info, ciMethod* profiled_method, int profiled_bci);
322
323 static LIR_Opr result_register_for(ValueType* type, bool callee = false);
324
325 ciObject* get_jobject_constant(Value value);
326
327 LIRItemList* invoke_visit_arguments(Invoke* x);
328 void invoke_load_arguments(Invoke* x, LIRItemList* args, const LIR_OprList* arg_list);
329
330 void trace_block_entry(BlockBegin* block);
331
332 // volatile field operations are never patchable because a klass
333 // must be loaded to know it's volatile which means that the offset
334 // it always known as well.
335 void volatile_field_store(LIR_Opr value, LIR_Address* address, CodeEmitInfo* info);
336 void volatile_field_load(LIR_Address* address, LIR_Opr result, CodeEmitInfo* info);
337
338 void put_Object_unsafe(LIR_Opr src, LIR_Opr offset, LIR_Opr data, BasicType type, bool is_volatile);
339 void get_Object_unsafe(LIR_Opr dest, LIR_Opr src, LIR_Opr offset, BasicType type, bool is_volatile);
340
341 void arithmetic_call_op (Bytecodes::Code code, LIR_Opr result, LIR_OprList* args);
342
343 void increment_counter(address counter, BasicType type, int step = 1);
344 void increment_counter(LIR_Address* addr, int step = 1);
345
346 void arithmetic_op(Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr tmp, CodeEmitInfo* info = nullptr);
347 // machine dependent. returns true if it emitted code for the multiply
348 bool strength_reduce_multiply(LIR_Opr left, jint constant, LIR_Opr result, LIR_Opr tmp);
349
350 void store_stack_parameter (LIR_Opr opr, ByteSize offset_from_sp_in_bytes);
351
352 void klass2reg_with_patching(LIR_Opr r, ciMetadata* obj, CodeEmitInfo* info, bool need_resolve = false);
353
354 // this loads the length and compares against the index
355 void array_range_check (LIR_Opr array, LIR_Opr index, CodeEmitInfo* null_check_info, CodeEmitInfo* range_check_info);
356
357 void arithmetic_op_int (Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr tmp);
358 void arithmetic_op_long (Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, CodeEmitInfo* info = nullptr);
359 void arithmetic_op_fpu (Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr tmp = LIR_OprFact::illegalOpr);
360
361 void shift_op (Bytecodes::Code code, LIR_Opr dst_reg, LIR_Opr value, LIR_Opr count, LIR_Opr tmp);
362
363 void logic_op (Bytecodes::Code code, LIR_Opr dst_reg, LIR_Opr left, LIR_Opr right);
364
365 void monitor_enter (LIR_Opr object, LIR_Opr lock, LIR_Opr hdr, LIR_Opr scratch, int monitor_no, CodeEmitInfo* info_for_exception, CodeEmitInfo* info);
366 void monitor_exit (LIR_Opr object, LIR_Opr lock, LIR_Opr hdr, LIR_Opr scratch, int monitor_no);
367
368 void new_instance (LIR_Opr dst, ciInstanceKlass* klass, bool is_unresolved, LIR_Opr scratch1, LIR_Opr scratch2, LIR_Opr scratch3, LIR_Opr scratch4, LIR_Opr klass_reg, CodeEmitInfo* info);
369
370 // machine dependent
371 void cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info);
372 void cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Opr base, int disp, BasicType type, CodeEmitInfo* info);
373
374 void arraycopy_helper(Intrinsic* x, int* flags, ciArrayKlass** expected_type);
375
376 // returns a LIR_Address to address an array location. May also
377 // emit some code as part of address calculation. If
378 // needs_card_mark is true then compute the full address for use by
379 // both the store and the card mark.
380 LIR_Address* generate_address(LIR_Opr base,
381 LIR_Opr index, int shift,
382 int disp,
383 BasicType type);
384 LIR_Address* generate_address(LIR_Opr base, int disp, BasicType type) {
385 return generate_address(base, LIR_OprFact::illegalOpr, 0, disp, type);
386 }
387 LIR_Address* emit_array_address(LIR_Opr array_opr, LIR_Opr index_opr, BasicType type);
388
460 };
461 return l;
462 }
463
464 #ifdef __SOFTFP__
465 void do_soft_float_compare(If *x);
466 #endif // __SOFTFP__
467
468 SwitchRangeArray* create_lookup_ranges(TableSwitch* x);
469 SwitchRangeArray* create_lookup_ranges(LookupSwitch* x);
470 void do_SwitchRanges(SwitchRangeArray* x, LIR_Opr value, BlockBegin* default_sux);
471
472 void do_RuntimeCall(address routine, Intrinsic* x);
473
474 ciKlass* profile_type(ciMethodData* md, int md_first_offset, int md_offset, intptr_t profiled_k,
475 Value arg, LIR_Opr& mdp, bool not_null, ciKlass* signature_at_call_k,
476 ciKlass* callee_signature_k);
477 void profile_arguments(ProfileCall* x);
478 void profile_parameters(Base* x);
479 void profile_parameters_at_call(ProfileCall* x);
480 LIR_Opr mask_boolean(LIR_Opr array, LIR_Opr value, CodeEmitInfo*& null_check_info);
481
482 public:
483 Compilation* compilation() const { return _compilation; }
484 FrameMap* frame_map() const { return _compilation->frame_map(); }
485 ciMethod* method() const { return _method; }
486 BlockBegin* block() const { return _block; }
487 IRScope* scope() const { return block()->scope(); }
488
489 int max_virtual_register_number() const { return _virtual_register_number; }
490
491 void block_do(BlockBegin* block);
492
493 // Flags that can be set on vregs
494 enum VregFlag {
495 must_start_in_memory = 0 // needs to be assigned a memory location at beginning, but may then be loaded in a register
496 , callee_saved = 1 // must be in a callee saved register
497 , byte_reg = 2 // must be in a byte register
498 , num_vreg_flags
499
500 };
501
502 LIRGenerator(Compilation* compilation, ciMethod* method)
503 : _compilation(compilation)
504 , _method(method)
505 , _virtual_register_number(LIR_Opr::vreg_base)
506 , _vreg_flags(num_vreg_flags)
507 , _barrier_set(BarrierSet::barrier_set()->barrier_set_c1()) {
508 }
509
510 // for virtual registers, maps them back to Phi's or Local's
511 Instruction* instruction_for_opr(LIR_Opr opr);
512 Instruction* instruction_for_vreg(int reg_num);
513
514 void set_vreg_flag (int vreg_num, VregFlag f);
515 bool is_vreg_flag_set(int vreg_num, VregFlag f);
516 void set_vreg_flag (LIR_Opr opr, VregFlag f) { set_vreg_flag(opr->vreg_number(), f); }
517 bool is_vreg_flag_set(LIR_Opr opr, VregFlag f) { return is_vreg_flag_set(opr->vreg_number(), f); }
518
519 // statics
520 static LIR_Opr exceptionOopOpr();
521 static LIR_Opr exceptionPcOpr();
522 static LIR_Opr divInOpr();
523 static LIR_Opr divOutOpr();
524 static LIR_Opr remOutOpr();
525 #ifdef S390
526 // On S390 we can do ldiv, lrem without RT call.
565 virtual void do_MonitorEnter (MonitorEnter* x);
566 virtual void do_MonitorExit (MonitorExit* x);
567 virtual void do_Intrinsic (Intrinsic* x);
568 virtual void do_BlockBegin (BlockBegin* x);
569 virtual void do_Goto (Goto* x);
570 virtual void do_If (If* x);
571 virtual void do_TableSwitch (TableSwitch* x);
572 virtual void do_LookupSwitch (LookupSwitch* x);
573 virtual void do_Return (Return* x);
574 virtual void do_Throw (Throw* x);
575 virtual void do_Base (Base* x);
576 virtual void do_OsrEntry (OsrEntry* x);
577 virtual void do_ExceptionObject(ExceptionObject* x);
578 virtual void do_RoundFP (RoundFP* x);
579 virtual void do_UnsafeGet (UnsafeGet* x);
580 virtual void do_UnsafePut (UnsafePut* x);
581 virtual void do_UnsafeGetAndSet(UnsafeGetAndSet* x);
582 virtual void do_ProfileCall (ProfileCall* x);
583 virtual void do_ProfileReturnType (ProfileReturnType* x);
584 virtual void do_ProfileInvoke (ProfileInvoke* x);
585 virtual void do_RuntimeCall (RuntimeCall* x);
586 virtual void do_MemBar (MemBar* x);
587 virtual void do_RangeCheckPredicate(RangeCheckPredicate* x);
588 #ifdef ASSERT
589 virtual void do_Assert (Assert* x);
590 #endif
591
592 #ifdef C1_LIRGENERATOR_MD_HPP
593 #include C1_LIRGENERATOR_MD_HPP
594 #endif
595 };
596
597
598 class LIRItem: public CompilationResourceObj {
599 private:
600 Value _value;
601 LIRGenerator* _gen;
602 LIR_Opr _result;
603 bool _destroys_register;
604 LIR_Opr _new_result;
|
152 };
153
154
155 // only the classes below belong in the same file
156 class LIRGenerator: public InstructionVisitor, public BlockClosure {
157 // LIRGenerator should never get instatiated on the heap.
158 private:
159 void* operator new(size_t size) throw();
160 void* operator new[](size_t size) throw();
161 void operator delete(void* p) { ShouldNotReachHere(); }
162 void operator delete[](void* p) { ShouldNotReachHere(); }
163
164 Compilation* _compilation;
165 ciMethod* _method; // method that we are compiling
166 PhiResolverState _resolver_state;
167 BlockBegin* _block;
168 int _virtual_register_number;
169 Values _instruction_for_operand;
170 BitMap2D _vreg_flags; // flags which can be set on a per-vreg basis
171 LIR_List* _lir;
172 bool _in_conditional_code;
173
174 LIRGenerator* gen() {
175 return this;
176 }
177
178 void print_if_not_loaded(const NewInstance* new_instance) PRODUCT_RETURN;
179
180 public:
181 #ifdef ASSERT
182 LIR_List* lir(const char * file, int line) const {
183 _lir->set_file_and_line(file, line);
184 return _lir;
185 }
186 #endif
187 LIR_List* lir() const {
188 return _lir;
189 }
190
191 private:
192 // a simple cache of constants used within a block
193 GrowableArray<LIR_Const*> _constants;
194 LIR_OprList _reg_for_constants;
195 Values _unpinned_constants;
196
197 friend class PhiResolver;
198
199 void set_in_conditional_code(bool v);
200 public:
201 // unified bailout support
202 void bailout(const char* msg) const { compilation()->bailout(msg); }
203 bool bailed_out() const { return compilation()->bailed_out(); }
204
205 void block_do_prolog(BlockBegin* block);
206 void block_do_epilog(BlockBegin* block);
207
208 // register allocation
209 LIR_Opr rlock(Value instr); // lock a free register
210 LIR_Opr rlock_result(Value instr);
211 LIR_Opr rlock_result(Value instr, BasicType type);
212 LIR_Opr rlock_byte(BasicType type);
213 LIR_Opr rlock_callee_saved(BasicType type);
214
215 // get a constant into a register and get track of what register was used
216 LIR_Opr load_constant(Constant* x);
217 LIR_Opr load_constant(LIR_Const* constant);
218
219 bool in_conditional_code() { return _in_conditional_code; }
220 // Given an immediate value, return an operand usable in logical ops.
221 LIR_Opr load_immediate(jlong x, BasicType type);
222
223 void set_result(Value x, LIR_Opr opr) {
224 assert(opr->is_valid(), "must set to valid value");
225 assert(x->operand()->is_illegal(), "operand should never change");
226 assert(!opr->is_register() || opr->is_virtual(), "should never set result to a physical register");
227 x->set_operand(opr);
228 assert(opr == x->operand(), "must be");
229 if (opr->is_virtual()) {
230 _instruction_for_operand.at_put_grow(opr->vreg_number(), x, nullptr);
231 }
232 }
233 void set_no_result(Value x) { assert(!x->has_uses(), "can't have use"); x->clear_operand(); }
234
235 friend class LIRItem;
236
237 LIR_Opr round_item(LIR_Opr opr);
238 LIR_Opr force_to_spill(LIR_Opr value, BasicType t);
239
259 void do_getModifiers(Intrinsic* x);
260 void do_getClass(Intrinsic* x);
261 void do_getObjectSize(Intrinsic* x);
262 void do_currentCarrierThread(Intrinsic* x);
263 void do_scopedValueCache(Intrinsic* x);
264 void do_vthread(Intrinsic* x);
265 void do_JavaThreadField(Intrinsic* x, ByteSize offset);
266 void do_FmaIntrinsic(Intrinsic* x);
267 void do_MathIntrinsic(Intrinsic* x);
268 void do_LibmIntrinsic(Intrinsic* x);
269 void do_ArrayCopy(Intrinsic* x);
270 void do_CompareAndSwap(Intrinsic* x, ValueType* type);
271 void do_PreconditionsCheckIndex(Intrinsic* x, BasicType type);
272 void do_FPIntrinsics(Intrinsic* x);
273 void do_Reference_get(Intrinsic* x);
274 void do_update_CRC32(Intrinsic* x);
275 void do_update_CRC32C(Intrinsic* x);
276 void do_vectorizedMismatch(Intrinsic* x);
277 void do_blackhole(Intrinsic* x);
278
279 void access_flat_array(bool is_load, LIRItem& array, LIRItem& index, LIRItem& obj_item, ciField* field = nullptr, int offset = 0);
280 void access_sub_element(LIRItem& array, LIRItem& index, LIR_Opr& result, ciField* field, int sub_offset);
281 LIR_Opr get_and_load_element_address(LIRItem& array, LIRItem& index);
282 bool needs_flat_array_store_check(StoreIndexed* x);
283 void check_flat_array(LIR_Opr array, LIR_Opr value, CodeStub* slow_path);
284 bool needs_null_free_array_store_check(StoreIndexed* x);
285 void check_null_free_array(LIRItem& array, LIRItem& value, CodeEmitInfo* info);
286 void substitutability_check(IfOp* x, LIRItem& left, LIRItem& right, LIRItem& t_val, LIRItem& f_val);
287 void substitutability_check(If* x, LIRItem& left, LIRItem& right);
288 void substitutability_check_common(Value left_val, Value right_val, LIRItem& left, LIRItem& right,
289 LIR_Opr equal_result, LIR_Opr not_equal_result, LIR_Opr result, CodeEmitInfo* info);
290 void init_temps_for_substitutability_check(LIR_Opr& tmp1, LIR_Opr& tmp2);
291
292 public:
293 LIR_Opr call_runtime(BasicTypeArray* signature, LIRItemList* args, address entry, ValueType* result_type, CodeEmitInfo* info);
294 LIR_Opr call_runtime(BasicTypeArray* signature, LIR_OprList* args, address entry, ValueType* result_type, CodeEmitInfo* info);
295
296 // convenience functions
297 LIR_Opr call_runtime(Value arg1, address entry, ValueType* result_type, CodeEmitInfo* info);
298 LIR_Opr call_runtime(Value arg1, Value arg2, address entry, ValueType* result_type, CodeEmitInfo* info);
299
300 // Access API
301
302 private:
303 BarrierSetC1 *_barrier_set;
304
305 public:
306 void access_store_at(DecoratorSet decorators, BasicType type,
307 LIRItem& base, LIR_Opr offset, LIR_Opr value,
308 CodeEmitInfo* patch_info = nullptr, CodeEmitInfo* store_emit_info = nullptr);
309
310 void access_load_at(DecoratorSet decorators, BasicType type,
311 LIRItem& base, LIR_Opr offset, LIR_Opr result,
325
326 // These need to guarantee JMM volatile semantics are preserved on each platform
327 // and requires one implementation per architecture.
328 LIR_Opr atomic_cmpxchg(BasicType type, LIR_Opr addr, LIRItem& cmp_value, LIRItem& new_value);
329 LIR_Opr atomic_xchg(BasicType type, LIR_Opr addr, LIRItem& new_value);
330 LIR_Opr atomic_add(BasicType type, LIR_Opr addr, LIRItem& new_value);
331
332 #ifdef CARDTABLEBARRIERSET_POST_BARRIER_HELPER
333 virtual void CardTableBarrierSet_post_barrier_helper(LIR_Opr addr, LIR_Const* card_table_base);
334 #endif
335
336 // specific implementations
337 void array_store_check(LIR_Opr value, LIR_Opr array, CodeEmitInfo* store_check_info, ciMethod* profiled_method, int profiled_bci);
338
339 static LIR_Opr result_register_for(ValueType* type, bool callee = false);
340
341 ciObject* get_jobject_constant(Value value);
342
343 LIRItemList* invoke_visit_arguments(Invoke* x);
344 void invoke_load_arguments(Invoke* x, LIRItemList* args, const LIR_OprList* arg_list);
345 void invoke_load_one_argument(LIRItem* param, LIR_Opr loc);
346 void trace_block_entry(BlockBegin* block);
347
348 // volatile field operations are never patchable because a klass
349 // must be loaded to know it's volatile which means that the offset
350 // it always known as well.
351 void volatile_field_store(LIR_Opr value, LIR_Address* address, CodeEmitInfo* info);
352 void volatile_field_load(LIR_Address* address, LIR_Opr result, CodeEmitInfo* info);
353
354 void put_Object_unsafe(LIR_Opr src, LIR_Opr offset, LIR_Opr data, BasicType type, bool is_volatile);
355 void get_Object_unsafe(LIR_Opr dest, LIR_Opr src, LIR_Opr offset, BasicType type, bool is_volatile);
356
357 void arithmetic_call_op (Bytecodes::Code code, LIR_Opr result, LIR_OprList* args);
358
359 void increment_counter(address counter, BasicType type, int step = 1);
360 void increment_counter(LIR_Address* addr, int step = 1);
361
362 void arithmetic_op(Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr tmp, CodeEmitInfo* info = nullptr);
363 // machine dependent. returns true if it emitted code for the multiply
364 bool strength_reduce_multiply(LIR_Opr left, jint constant, LIR_Opr result, LIR_Opr tmp);
365
366 void store_stack_parameter (LIR_Opr opr, ByteSize offset_from_sp_in_bytes);
367
368 void klass2reg_with_patching(LIR_Opr r, ciMetadata* obj, CodeEmitInfo* info, bool need_resolve = false);
369
370 // this loads the length and compares against the index
371 void array_range_check (LIR_Opr array, LIR_Opr index, CodeEmitInfo* null_check_info, CodeEmitInfo* range_check_info);
372
373 void arithmetic_op_int (Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr tmp);
374 void arithmetic_op_long (Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, CodeEmitInfo* info = nullptr);
375 void arithmetic_op_fpu (Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr tmp = LIR_OprFact::illegalOpr);
376
377 void shift_op (Bytecodes::Code code, LIR_Opr dst_reg, LIR_Opr value, LIR_Opr count, LIR_Opr tmp);
378
379 void logic_op (Bytecodes::Code code, LIR_Opr dst_reg, LIR_Opr left, LIR_Opr right);
380
381 void monitor_enter (LIR_Opr object, LIR_Opr lock, LIR_Opr hdr, LIR_Opr scratch, int monitor_no, CodeEmitInfo* info_for_exception, CodeEmitInfo* info, CodeStub* throw_imse_stub);
382 void monitor_exit (LIR_Opr object, LIR_Opr lock, LIR_Opr hdr, LIR_Opr scratch, int monitor_no);
383
384 void new_instance(LIR_Opr dst, ciInstanceKlass* klass, bool is_unresolved, bool allow_inline, LIR_Opr scratch1, LIR_Opr scratch2, LIR_Opr scratch3, LIR_Opr scratch4, LIR_Opr klass_reg, CodeEmitInfo* info);
385
386 // machine dependent
387 void cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info);
388 void cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Opr base, int disp, BasicType type, CodeEmitInfo* info);
389
390 void arraycopy_helper(Intrinsic* x, int* flags, ciArrayKlass** expected_type);
391
392 // returns a LIR_Address to address an array location. May also
393 // emit some code as part of address calculation. If
394 // needs_card_mark is true then compute the full address for use by
395 // both the store and the card mark.
396 LIR_Address* generate_address(LIR_Opr base,
397 LIR_Opr index, int shift,
398 int disp,
399 BasicType type);
400 LIR_Address* generate_address(LIR_Opr base, int disp, BasicType type) {
401 return generate_address(base, LIR_OprFact::illegalOpr, 0, disp, type);
402 }
403 LIR_Address* emit_array_address(LIR_Opr array_opr, LIR_Opr index_opr, BasicType type);
404
476 };
477 return l;
478 }
479
480 #ifdef __SOFTFP__
481 void do_soft_float_compare(If *x);
482 #endif // __SOFTFP__
483
484 SwitchRangeArray* create_lookup_ranges(TableSwitch* x);
485 SwitchRangeArray* create_lookup_ranges(LookupSwitch* x);
486 void do_SwitchRanges(SwitchRangeArray* x, LIR_Opr value, BlockBegin* default_sux);
487
488 void do_RuntimeCall(address routine, Intrinsic* x);
489
490 ciKlass* profile_type(ciMethodData* md, int md_first_offset, int md_offset, intptr_t profiled_k,
491 Value arg, LIR_Opr& mdp, bool not_null, ciKlass* signature_at_call_k,
492 ciKlass* callee_signature_k);
493 void profile_arguments(ProfileCall* x);
494 void profile_parameters(Base* x);
495 void profile_parameters_at_call(ProfileCall* x);
496 void profile_flags(ciMethodData* md, ciProfileData* load_store, int flag, LIR_Condition condition = lir_cond_always);
497 template <class ArrayData> void profile_null_free_array(LIRItem array, ciMethodData* md, ArrayData* load_store);
498 template <class ArrayData> void profile_array_type(AccessIndexed* x, ciMethodData*& md, ArrayData*& load_store);
499 void profile_element_type(Value element, ciMethodData* md, ciArrayLoadData* load_store);
500 bool profile_inline_klass(ciMethodData* md, ciProfileData* data, Value value, int flag);
501 LIR_Opr mask_boolean(LIR_Opr array, LIR_Opr value, CodeEmitInfo*& null_check_info);
502
503 public:
504 Compilation* compilation() const { return _compilation; }
505 FrameMap* frame_map() const { return _compilation->frame_map(); }
506 ciMethod* method() const { return _method; }
507 BlockBegin* block() const { return _block; }
508 IRScope* scope() const { return block()->scope(); }
509
510 int max_virtual_register_number() const { return _virtual_register_number; }
511
512 void block_do(BlockBegin* block);
513
514 // Flags that can be set on vregs
515 enum VregFlag {
516 must_start_in_memory = 0 // needs to be assigned a memory location at beginning, but may then be loaded in a register
517 , callee_saved = 1 // must be in a callee saved register
518 , byte_reg = 2 // must be in a byte register
519 , num_vreg_flags
520
521 };
522
523 LIRGenerator(Compilation* compilation, ciMethod* method)
524 : _compilation(compilation)
525 , _method(method)
526 , _virtual_register_number(LIR_Opr::vreg_base)
527 , _vreg_flags(num_vreg_flags)
528 , _in_conditional_code(false)
529 , _barrier_set(BarrierSet::barrier_set()->barrier_set_c1()) {
530 }
531
532 // for virtual registers, maps them back to Phi's or Local's
533 Instruction* instruction_for_opr(LIR_Opr opr);
534 Instruction* instruction_for_vreg(int reg_num);
535
536 void set_vreg_flag (int vreg_num, VregFlag f);
537 bool is_vreg_flag_set(int vreg_num, VregFlag f);
538 void set_vreg_flag (LIR_Opr opr, VregFlag f) { set_vreg_flag(opr->vreg_number(), f); }
539 bool is_vreg_flag_set(LIR_Opr opr, VregFlag f) { return is_vreg_flag_set(opr->vreg_number(), f); }
540
541 // statics
542 static LIR_Opr exceptionOopOpr();
543 static LIR_Opr exceptionPcOpr();
544 static LIR_Opr divInOpr();
545 static LIR_Opr divOutOpr();
546 static LIR_Opr remOutOpr();
547 #ifdef S390
548 // On S390 we can do ldiv, lrem without RT call.
587 virtual void do_MonitorEnter (MonitorEnter* x);
588 virtual void do_MonitorExit (MonitorExit* x);
589 virtual void do_Intrinsic (Intrinsic* x);
590 virtual void do_BlockBegin (BlockBegin* x);
591 virtual void do_Goto (Goto* x);
592 virtual void do_If (If* x);
593 virtual void do_TableSwitch (TableSwitch* x);
594 virtual void do_LookupSwitch (LookupSwitch* x);
595 virtual void do_Return (Return* x);
596 virtual void do_Throw (Throw* x);
597 virtual void do_Base (Base* x);
598 virtual void do_OsrEntry (OsrEntry* x);
599 virtual void do_ExceptionObject(ExceptionObject* x);
600 virtual void do_RoundFP (RoundFP* x);
601 virtual void do_UnsafeGet (UnsafeGet* x);
602 virtual void do_UnsafePut (UnsafePut* x);
603 virtual void do_UnsafeGetAndSet(UnsafeGetAndSet* x);
604 virtual void do_ProfileCall (ProfileCall* x);
605 virtual void do_ProfileReturnType (ProfileReturnType* x);
606 virtual void do_ProfileInvoke (ProfileInvoke* x);
607 virtual void do_ProfileACmpTypes(ProfileACmpTypes* x);
608 virtual void do_RuntimeCall (RuntimeCall* x);
609 virtual void do_MemBar (MemBar* x);
610 virtual void do_RangeCheckPredicate(RangeCheckPredicate* x);
611 #ifdef ASSERT
612 virtual void do_Assert (Assert* x);
613 #endif
614
615 #ifdef C1_LIRGENERATOR_MD_HPP
616 #include C1_LIRGENERATOR_MD_HPP
617 #endif
618 };
619
620
621 class LIRItem: public CompilationResourceObj {
622 private:
623 Value _value;
624 LIRGenerator* _gen;
625 LIR_Opr _result;
626 bool _destroys_register;
627 LIR_Opr _new_result;
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