0
|
1 /*
|
|
2 * Copyright 2005-2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
|
|
20 * CA 95054 USA or visit www.sun.com if you need additional information or
|
|
21 * have any questions.
|
|
22 *
|
|
23 */
|
|
24
|
|
25 // The classes responsible for code emission and register allocation
|
|
26
|
|
27
|
|
28 class LIRGenerator;
|
|
29 class LIREmitter;
|
|
30 class Invoke;
|
|
31 class SwitchRange;
|
|
32 class LIRItem;
|
|
33
|
|
34 define_array(LIRItemArray, LIRItem*)
|
|
35 define_stack(LIRItemList, LIRItemArray)
|
|
36
|
|
37 class SwitchRange: public CompilationResourceObj {
|
|
38 private:
|
|
39 int _low_key;
|
|
40 int _high_key;
|
|
41 BlockBegin* _sux;
|
|
42 public:
|
|
43 SwitchRange(int start_key, BlockBegin* sux): _low_key(start_key), _high_key(start_key), _sux(sux) {}
|
|
44 void set_high_key(int key) { _high_key = key; }
|
|
45
|
|
46 int high_key() const { return _high_key; }
|
|
47 int low_key() const { return _low_key; }
|
|
48 BlockBegin* sux() const { return _sux; }
|
|
49 };
|
|
50
|
|
51 define_array(SwitchRangeArray, SwitchRange*)
|
|
52 define_stack(SwitchRangeList, SwitchRangeArray)
|
|
53
|
|
54
|
|
55 class ResolveNode;
|
|
56
|
|
57 define_array(NodeArray, ResolveNode*);
|
|
58 define_stack(NodeList, NodeArray);
|
|
59
|
|
60
|
|
61 // Node objects form a directed graph of LIR_Opr
|
|
62 // Edges between Nodes represent moves from one Node to its destinations
|
|
63 class ResolveNode: public CompilationResourceObj {
|
|
64 private:
|
|
65 LIR_Opr _operand; // the source or destinaton
|
|
66 NodeList _destinations; // for the operand
|
|
67 bool _assigned; // Value assigned to this Node?
|
|
68 bool _visited; // Node already visited?
|
|
69 bool _start_node; // Start node already visited?
|
|
70
|
|
71 public:
|
|
72 ResolveNode(LIR_Opr operand)
|
|
73 : _operand(operand)
|
|
74 , _assigned(false)
|
|
75 , _visited(false)
|
|
76 , _start_node(false) {};
|
|
77
|
|
78 // accessors
|
|
79 LIR_Opr operand() const { return _operand; }
|
|
80 int no_of_destinations() const { return _destinations.length(); }
|
|
81 ResolveNode* destination_at(int i) { return _destinations[i]; }
|
|
82 bool assigned() const { return _assigned; }
|
|
83 bool visited() const { return _visited; }
|
|
84 bool start_node() const { return _start_node; }
|
|
85
|
|
86 // modifiers
|
|
87 void append(ResolveNode* dest) { _destinations.append(dest); }
|
|
88 void set_assigned() { _assigned = true; }
|
|
89 void set_visited() { _visited = true; }
|
|
90 void set_start_node() { _start_node = true; }
|
|
91 };
|
|
92
|
|
93
|
|
94 // This is shared state to be used by the PhiResolver so the operand
|
|
95 // arrays don't have to be reallocated for reach resolution.
|
|
96 class PhiResolverState: public CompilationResourceObj {
|
|
97 friend class PhiResolver;
|
|
98
|
|
99 private:
|
|
100 NodeList _virtual_operands; // Nodes where the operand is a virtual register
|
|
101 NodeList _other_operands; // Nodes where the operand is not a virtual register
|
|
102 NodeList _vreg_table; // Mapping from virtual register to Node
|
|
103
|
|
104 public:
|
|
105 PhiResolverState() {}
|
|
106
|
|
107 void reset(int max_vregs);
|
|
108 };
|
|
109
|
|
110
|
|
111 // class used to move value of phi operand to phi function
|
|
112 class PhiResolver: public CompilationResourceObj {
|
|
113 private:
|
|
114 LIRGenerator* _gen;
|
|
115 PhiResolverState& _state; // temporary state cached by LIRGenerator
|
|
116
|
|
117 ResolveNode* _loop;
|
|
118 LIR_Opr _temp;
|
|
119
|
|
120 // access to shared state arrays
|
|
121 NodeList& virtual_operands() { return _state._virtual_operands; }
|
|
122 NodeList& other_operands() { return _state._other_operands; }
|
|
123 NodeList& vreg_table() { return _state._vreg_table; }
|
|
124
|
|
125 ResolveNode* create_node(LIR_Opr opr, bool source);
|
|
126 ResolveNode* source_node(LIR_Opr opr) { return create_node(opr, true); }
|
|
127 ResolveNode* destination_node(LIR_Opr opr) { return create_node(opr, false); }
|
|
128
|
|
129 void emit_move(LIR_Opr src, LIR_Opr dest);
|
|
130 void move_to_temp(LIR_Opr src);
|
|
131 void move_temp_to(LIR_Opr dest);
|
|
132 void move(ResolveNode* src, ResolveNode* dest);
|
|
133
|
|
134 LIRGenerator* gen() {
|
|
135 return _gen;
|
|
136 }
|
|
137
|
|
138 public:
|
|
139 PhiResolver(LIRGenerator* _lir_gen, int max_vregs);
|
|
140 ~PhiResolver();
|
|
141
|
|
142 void move(LIR_Opr src, LIR_Opr dest);
|
|
143 };
|
|
144
|
|
145
|
|
146 // only the classes below belong in the same file
|
|
147 class LIRGenerator: public InstructionVisitor, public BlockClosure {
|
342
|
148
|
0
|
149 private:
|
|
150 Compilation* _compilation;
|
|
151 ciMethod* _method; // method that we are compiling
|
|
152 PhiResolverState _resolver_state;
|
|
153 BlockBegin* _block;
|
|
154 int _virtual_register_number;
|
|
155 Values _instruction_for_operand;
|
|
156 BitMap2D _vreg_flags; // flags which can be set on a per-vreg basis
|
|
157 LIR_List* _lir;
|
342
|
158 BarrierSet* _bs;
|
0
|
159
|
|
160 LIRGenerator* gen() {
|
|
161 return this;
|
|
162 }
|
|
163
|
|
164 #ifdef ASSERT
|
|
165 LIR_List* lir(const char * file, int line) const {
|
|
166 _lir->set_file_and_line(file, line);
|
|
167 return _lir;
|
|
168 }
|
|
169 #endif
|
|
170 LIR_List* lir() const {
|
|
171 return _lir;
|
|
172 }
|
|
173
|
|
174 // a simple cache of constants used within a block
|
|
175 GrowableArray<LIR_Const*> _constants;
|
|
176 LIR_OprList _reg_for_constants;
|
|
177 Values _unpinned_constants;
|
|
178
|
|
179 friend class PhiResolver;
|
|
180
|
|
181 // unified bailout support
|
|
182 void bailout(const char* msg) const { compilation()->bailout(msg); }
|
|
183 bool bailed_out() const { return compilation()->bailed_out(); }
|
|
184
|
|
185 void block_do_prolog(BlockBegin* block);
|
|
186 void block_do_epilog(BlockBegin* block);
|
|
187
|
|
188 // register allocation
|
|
189 LIR_Opr rlock(Value instr); // lock a free register
|
|
190 LIR_Opr rlock_result(Value instr);
|
|
191 LIR_Opr rlock_result(Value instr, BasicType type);
|
|
192 LIR_Opr rlock_byte(BasicType type);
|
|
193 LIR_Opr rlock_callee_saved(BasicType type);
|
|
194
|
|
195 // get a constant into a register and get track of what register was used
|
|
196 LIR_Opr load_constant(Constant* x);
|
|
197 LIR_Opr load_constant(LIR_Const* constant);
|
|
198
|
|
199 void set_result(Value x, LIR_Opr opr) {
|
|
200 assert(opr->is_valid(), "must set to valid value");
|
|
201 assert(x->operand()->is_illegal(), "operand should never change");
|
|
202 assert(!opr->is_register() || opr->is_virtual(), "should never set result to a physical register");
|
|
203 x->set_operand(opr);
|
|
204 assert(opr == x->operand(), "must be");
|
|
205 if (opr->is_virtual()) {
|
|
206 _instruction_for_operand.at_put_grow(opr->vreg_number(), x, NULL);
|
|
207 }
|
|
208 }
|
|
209 void set_no_result(Value x) { assert(!x->has_uses(), "can't have use"); x->clear_operand(); }
|
|
210
|
|
211 friend class LIRItem;
|
|
212
|
|
213 LIR_Opr round_item(LIR_Opr opr);
|
|
214 LIR_Opr force_to_spill(LIR_Opr value, BasicType t);
|
|
215
|
|
216 void profile_branch(If* if_instr, If::Condition cond);
|
|
217
|
|
218 PhiResolverState& resolver_state() { return _resolver_state; }
|
|
219
|
|
220 void move_to_phi(PhiResolver* resolver, Value cur_val, Value sux_val);
|
|
221 void move_to_phi(ValueStack* cur_state);
|
|
222
|
|
223 // code emission
|
|
224 void do_ArithmeticOp_Long (ArithmeticOp* x);
|
|
225 void do_ArithmeticOp_Int (ArithmeticOp* x);
|
|
226 void do_ArithmeticOp_FPU (ArithmeticOp* x);
|
|
227
|
|
228 // platform dependent
|
|
229 LIR_Opr getThreadPointer();
|
|
230
|
|
231 void do_RegisterFinalizer(Intrinsic* x);
|
|
232 void do_getClass(Intrinsic* x);
|
|
233 void do_currentThread(Intrinsic* x);
|
|
234 void do_MathIntrinsic(Intrinsic* x);
|
|
235 void do_ArrayCopy(Intrinsic* x);
|
|
236 void do_CompareAndSwap(Intrinsic* x, ValueType* type);
|
|
237 void do_AttemptUpdate(Intrinsic* x);
|
|
238 void do_NIOCheckIndex(Intrinsic* x);
|
|
239 void do_FPIntrinsics(Intrinsic* x);
|
|
240
|
|
241 void do_UnsafePrefetch(UnsafePrefetch* x, bool is_store);
|
|
242
|
|
243 LIR_Opr call_runtime(BasicTypeArray* signature, LIRItemList* args, address entry, ValueType* result_type, CodeEmitInfo* info);
|
|
244 LIR_Opr call_runtime(BasicTypeArray* signature, LIR_OprList* args, address entry, ValueType* result_type, CodeEmitInfo* info);
|
|
245
|
|
246 // convenience functions
|
|
247 LIR_Opr call_runtime(Value arg1, address entry, ValueType* result_type, CodeEmitInfo* info);
|
|
248 LIR_Opr call_runtime(Value arg1, Value arg2, address entry, ValueType* result_type, CodeEmitInfo* info);
|
|
249
|
|
250 // GC Barriers
|
|
251
|
|
252 // generic interface
|
|
253
|
342
|
254 void pre_barrier(LIR_Opr addr_opr, bool patch, CodeEmitInfo* info);
|
0
|
255 void post_barrier(LIR_OprDesc* addr, LIR_OprDesc* new_val);
|
|
256
|
|
257 // specific implementations
|
342
|
258 // pre barriers
|
|
259
|
|
260 void G1SATBCardTableModRef_pre_barrier(LIR_Opr addr_opr, bool patch, CodeEmitInfo* info);
|
0
|
261
|
|
262 // post barriers
|
|
263
|
342
|
264 void G1SATBCardTableModRef_post_barrier(LIR_OprDesc* addr, LIR_OprDesc* new_val);
|
0
|
265 void CardTableModRef_post_barrier(LIR_OprDesc* addr, LIR_OprDesc* new_val);
|
|
266
|
|
267
|
|
268 static LIR_Opr result_register_for(ValueType* type, bool callee = false);
|
|
269
|
|
270 ciObject* get_jobject_constant(Value value);
|
|
271
|
|
272 LIRItemList* invoke_visit_arguments(Invoke* x);
|
|
273 void invoke_load_arguments(Invoke* x, LIRItemList* args, const LIR_OprList* arg_list);
|
|
274
|
|
275 void trace_block_entry(BlockBegin* block);
|
|
276
|
|
277 // volatile field operations are never patchable because a klass
|
|
278 // must be loaded to know it's volatile which means that the offset
|
|
279 // it always known as well.
|
|
280 void volatile_field_store(LIR_Opr value, LIR_Address* address, CodeEmitInfo* info);
|
|
281 void volatile_field_load(LIR_Address* address, LIR_Opr result, CodeEmitInfo* info);
|
|
282
|
|
283 void put_Object_unsafe(LIR_Opr src, LIR_Opr offset, LIR_Opr data, BasicType type, bool is_volatile);
|
|
284 void get_Object_unsafe(LIR_Opr dest, LIR_Opr src, LIR_Opr offset, BasicType type, bool is_volatile);
|
|
285
|
|
286 void arithmetic_call_op (Bytecodes::Code code, LIR_Opr result, LIR_OprList* args);
|
|
287
|
|
288 void increment_counter(address counter, int step = 1);
|
|
289 void increment_counter(LIR_Address* addr, int step = 1);
|
|
290
|
|
291 // increment a counter returning the incremented value
|
|
292 LIR_Opr increment_and_return_counter(LIR_Opr base, int offset, int increment);
|
|
293
|
|
294 // is_strictfp is only needed for mul and div (and only generates different code on i486)
|
|
295 void arithmetic_op(Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, bool is_strictfp, LIR_Opr tmp, CodeEmitInfo* info = NULL);
|
|
296 // machine dependent. returns true if it emitted code for the multiply
|
|
297 bool strength_reduce_multiply(LIR_Opr left, int constant, LIR_Opr result, LIR_Opr tmp);
|
|
298
|
|
299 void store_stack_parameter (LIR_Opr opr, ByteSize offset_from_sp_in_bytes);
|
|
300
|
|
301 void jobject2reg_with_patching(LIR_Opr r, ciObject* obj, CodeEmitInfo* info);
|
|
302
|
|
303 // this loads the length and compares against the index
|
|
304 void array_range_check (LIR_Opr array, LIR_Opr index, CodeEmitInfo* null_check_info, CodeEmitInfo* range_check_info);
|
|
305 // For java.nio.Buffer.checkIndex
|
|
306 void nio_range_check (LIR_Opr buffer, LIR_Opr index, LIR_Opr result, CodeEmitInfo* info);
|
|
307
|
|
308 void arithmetic_op_int (Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr tmp);
|
|
309 void arithmetic_op_long (Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, CodeEmitInfo* info = NULL);
|
|
310 void arithmetic_op_fpu (Bytecodes::Code code, LIR_Opr result, LIR_Opr left, LIR_Opr right, bool is_strictfp, LIR_Opr tmp = LIR_OprFact::illegalOpr);
|
|
311
|
|
312 void shift_op (Bytecodes::Code code, LIR_Opr dst_reg, LIR_Opr value, LIR_Opr count, LIR_Opr tmp);
|
|
313
|
|
314 void logic_op (Bytecodes::Code code, LIR_Opr dst_reg, LIR_Opr left, LIR_Opr right);
|
|
315
|
|
316 void monitor_enter (LIR_Opr object, LIR_Opr lock, LIR_Opr hdr, LIR_Opr scratch, int monitor_no, CodeEmitInfo* info_for_exception, CodeEmitInfo* info);
|
|
317 void monitor_exit (LIR_Opr object, LIR_Opr lock, LIR_Opr hdr, int monitor_no);
|
|
318
|
|
319 void new_instance (LIR_Opr dst, ciInstanceKlass* klass, LIR_Opr scratch1, LIR_Opr scratch2, LIR_Opr scratch3, LIR_Opr scratch4, LIR_Opr klass_reg, CodeEmitInfo* info);
|
|
320
|
|
321 // machine dependent
|
|
322 void cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info);
|
|
323 void cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Opr base, int disp, BasicType type, CodeEmitInfo* info);
|
|
324 void cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Opr base, LIR_Opr disp, BasicType type, CodeEmitInfo* info);
|
|
325
|
|
326 void arraycopy_helper(Intrinsic* x, int* flags, ciArrayKlass** expected_type);
|
|
327
|
|
328 // returns a LIR_Address to address an array location. May also
|
|
329 // emit some code as part of address calculation. If
|
|
330 // needs_card_mark is true then compute the full address for use by
|
|
331 // both the store and the card mark.
|
|
332 LIR_Address* generate_address(LIR_Opr base,
|
|
333 LIR_Opr index, int shift,
|
|
334 int disp,
|
|
335 BasicType type);
|
|
336 LIR_Address* generate_address(LIR_Opr base, int disp, BasicType type) {
|
|
337 return generate_address(base, LIR_OprFact::illegalOpr, 0, disp, type);
|
|
338 }
|
|
339 LIR_Address* emit_array_address(LIR_Opr array_opr, LIR_Opr index_opr, BasicType type, bool needs_card_mark);
|
|
340
|
|
341 // machine preferences and characteristics
|
|
342 bool can_inline_as_constant(Value i) const;
|
|
343 bool can_inline_as_constant(LIR_Const* c) const;
|
|
344 bool can_store_as_constant(Value i, BasicType type) const;
|
|
345
|
|
346 LIR_Opr safepoint_poll_register();
|
|
347 void increment_invocation_counter(CodeEmitInfo* info, bool backedge = false);
|
|
348 void increment_backedge_counter(CodeEmitInfo* info) {
|
|
349 increment_invocation_counter(info, true);
|
|
350 }
|
|
351
|
|
352 CodeEmitInfo* state_for(Instruction* x, ValueStack* state, bool ignore_xhandler = false);
|
|
353 CodeEmitInfo* state_for(Instruction* x);
|
|
354
|
|
355 // allocates a virtual register for this instruction if
|
|
356 // one isn't already allocated. Only for Phi and Local.
|
|
357 LIR_Opr operand_for_instruction(Instruction *x);
|
|
358
|
|
359 void set_block(BlockBegin* block) { _block = block; }
|
|
360
|
|
361 void block_prolog(BlockBegin* block);
|
|
362 void block_epilog(BlockBegin* block);
|
|
363
|
|
364 void do_root (Instruction* instr);
|
|
365 void walk (Instruction* instr);
|
|
366
|
|
367 void bind_block_entry(BlockBegin* block);
|
|
368 void start_block(BlockBegin* block);
|
|
369
|
|
370 LIR_Opr new_register(BasicType type);
|
|
371 LIR_Opr new_register(Value value) { return new_register(as_BasicType(value->type())); }
|
|
372 LIR_Opr new_register(ValueType* type) { return new_register(as_BasicType(type)); }
|
|
373
|
|
374 // returns a register suitable for doing pointer math
|
|
375 LIR_Opr new_pointer_register() {
|
|
376 #ifdef _LP64
|
|
377 return new_register(T_LONG);
|
|
378 #else
|
|
379 return new_register(T_INT);
|
|
380 #endif
|
|
381 }
|
|
382
|
|
383 static LIR_Condition lir_cond(If::Condition cond) {
|
|
384 LIR_Condition l;
|
|
385 switch (cond) {
|
|
386 case If::eql: l = lir_cond_equal; break;
|
|
387 case If::neq: l = lir_cond_notEqual; break;
|
|
388 case If::lss: l = lir_cond_less; break;
|
|
389 case If::leq: l = lir_cond_lessEqual; break;
|
|
390 case If::geq: l = lir_cond_greaterEqual; break;
|
|
391 case If::gtr: l = lir_cond_greater; break;
|
|
392 };
|
|
393 return l;
|
|
394 }
|
|
395
|
|
396 void init();
|
|
397
|
|
398 SwitchRangeArray* create_lookup_ranges(TableSwitch* x);
|
|
399 SwitchRangeArray* create_lookup_ranges(LookupSwitch* x);
|
|
400 void do_SwitchRanges(SwitchRangeArray* x, LIR_Opr value, BlockBegin* default_sux);
|
|
401
|
|
402 public:
|
|
403 Compilation* compilation() const { return _compilation; }
|
|
404 FrameMap* frame_map() const { return _compilation->frame_map(); }
|
|
405 ciMethod* method() const { return _method; }
|
|
406 BlockBegin* block() const { return _block; }
|
|
407 IRScope* scope() const { return block()->scope(); }
|
|
408
|
|
409 int max_virtual_register_number() const { return _virtual_register_number; }
|
|
410
|
|
411 void block_do(BlockBegin* block);
|
|
412
|
|
413 // Flags that can be set on vregs
|
|
414 enum VregFlag {
|
|
415 must_start_in_memory = 0 // needs to be assigned a memory location at beginning, but may then be loaded in a register
|
|
416 , callee_saved = 1 // must be in a callee saved register
|
|
417 , byte_reg = 2 // must be in a byte register
|
|
418 , num_vreg_flags
|
|
419
|
|
420 };
|
|
421
|
|
422 LIRGenerator(Compilation* compilation, ciMethod* method)
|
|
423 : _compilation(compilation)
|
|
424 , _method(method)
|
|
425 , _virtual_register_number(LIR_OprDesc::vreg_base)
|
|
426 , _vreg_flags(NULL, 0, num_vreg_flags) {
|
|
427 init();
|
|
428 }
|
|
429
|
|
430 // for virtual registers, maps them back to Phi's or Local's
|
|
431 Instruction* instruction_for_opr(LIR_Opr opr);
|
|
432 Instruction* instruction_for_vreg(int reg_num);
|
|
433
|
|
434 void set_vreg_flag (int vreg_num, VregFlag f);
|
|
435 bool is_vreg_flag_set(int vreg_num, VregFlag f);
|
|
436 void set_vreg_flag (LIR_Opr opr, VregFlag f) { set_vreg_flag(opr->vreg_number(), f); }
|
|
437 bool is_vreg_flag_set(LIR_Opr opr, VregFlag f) { return is_vreg_flag_set(opr->vreg_number(), f); }
|
|
438
|
|
439 // statics
|
|
440 static LIR_Opr exceptionOopOpr();
|
|
441 static LIR_Opr exceptionPcOpr();
|
|
442 static LIR_Opr divInOpr();
|
|
443 static LIR_Opr divOutOpr();
|
|
444 static LIR_Opr remOutOpr();
|
|
445 static LIR_Opr shiftCountOpr();
|
|
446 LIR_Opr syncTempOpr();
|
|
447
|
|
448 // returns a register suitable for saving the thread in a
|
|
449 // call_runtime_leaf if one is needed.
|
|
450 LIR_Opr getThreadTemp();
|
|
451
|
|
452 // visitor functionality
|
|
453 virtual void do_Phi (Phi* x);
|
|
454 virtual void do_Local (Local* x);
|
|
455 virtual void do_Constant (Constant* x);
|
|
456 virtual void do_LoadField (LoadField* x);
|
|
457 virtual void do_StoreField (StoreField* x);
|
|
458 virtual void do_ArrayLength (ArrayLength* x);
|
|
459 virtual void do_LoadIndexed (LoadIndexed* x);
|
|
460 virtual void do_StoreIndexed (StoreIndexed* x);
|
|
461 virtual void do_NegateOp (NegateOp* x);
|
|
462 virtual void do_ArithmeticOp (ArithmeticOp* x);
|
|
463 virtual void do_ShiftOp (ShiftOp* x);
|
|
464 virtual void do_LogicOp (LogicOp* x);
|
|
465 virtual void do_CompareOp (CompareOp* x);
|
|
466 virtual void do_IfOp (IfOp* x);
|
|
467 virtual void do_Convert (Convert* x);
|
|
468 virtual void do_NullCheck (NullCheck* x);
|
|
469 virtual void do_Invoke (Invoke* x);
|
|
470 virtual void do_NewInstance (NewInstance* x);
|
|
471 virtual void do_NewTypeArray (NewTypeArray* x);
|
|
472 virtual void do_NewObjectArray (NewObjectArray* x);
|
|
473 virtual void do_NewMultiArray (NewMultiArray* x);
|
|
474 virtual void do_CheckCast (CheckCast* x);
|
|
475 virtual void do_InstanceOf (InstanceOf* x);
|
|
476 virtual void do_MonitorEnter (MonitorEnter* x);
|
|
477 virtual void do_MonitorExit (MonitorExit* x);
|
|
478 virtual void do_Intrinsic (Intrinsic* x);
|
|
479 virtual void do_BlockBegin (BlockBegin* x);
|
|
480 virtual void do_Goto (Goto* x);
|
|
481 virtual void do_If (If* x);
|
|
482 virtual void do_IfInstanceOf (IfInstanceOf* x);
|
|
483 virtual void do_TableSwitch (TableSwitch* x);
|
|
484 virtual void do_LookupSwitch (LookupSwitch* x);
|
|
485 virtual void do_Return (Return* x);
|
|
486 virtual void do_Throw (Throw* x);
|
|
487 virtual void do_Base (Base* x);
|
|
488 virtual void do_OsrEntry (OsrEntry* x);
|
|
489 virtual void do_ExceptionObject(ExceptionObject* x);
|
|
490 virtual void do_RoundFP (RoundFP* x);
|
|
491 virtual void do_UnsafeGetRaw (UnsafeGetRaw* x);
|
|
492 virtual void do_UnsafePutRaw (UnsafePutRaw* x);
|
|
493 virtual void do_UnsafeGetObject(UnsafeGetObject* x);
|
|
494 virtual void do_UnsafePutObject(UnsafePutObject* x);
|
|
495 virtual void do_UnsafePrefetchRead (UnsafePrefetchRead* x);
|
|
496 virtual void do_UnsafePrefetchWrite(UnsafePrefetchWrite* x);
|
|
497 virtual void do_ProfileCall (ProfileCall* x);
|
|
498 virtual void do_ProfileCounter (ProfileCounter* x);
|
|
499 };
|
|
500
|
|
501
|
|
502 class LIRItem: public CompilationResourceObj {
|
|
503 private:
|
|
504 Value _value;
|
|
505 LIRGenerator* _gen;
|
|
506 LIR_Opr _result;
|
|
507 bool _destroys_register;
|
|
508 LIR_Opr _new_result;
|
|
509
|
|
510 LIRGenerator* gen() const { return _gen; }
|
|
511
|
|
512 public:
|
|
513 LIRItem(Value value, LIRGenerator* gen) {
|
|
514 _destroys_register = false;
|
|
515 _gen = gen;
|
|
516 set_instruction(value);
|
|
517 }
|
|
518
|
|
519 LIRItem(LIRGenerator* gen) {
|
|
520 _destroys_register = false;
|
|
521 _gen = gen;
|
|
522 _result = LIR_OprFact::illegalOpr;
|
|
523 set_instruction(NULL);
|
|
524 }
|
|
525
|
|
526 void set_instruction(Value value) {
|
|
527 _value = value;
|
|
528 _result = LIR_OprFact::illegalOpr;
|
|
529 if (_value != NULL) {
|
|
530 _gen->walk(_value);
|
|
531 _result = _value->operand();
|
|
532 }
|
|
533 _new_result = LIR_OprFact::illegalOpr;
|
|
534 }
|
|
535
|
|
536 Value value() const { return _value; }
|
|
537 ValueType* type() const { return value()->type(); }
|
|
538 LIR_Opr result() {
|
|
539 assert(!_destroys_register || (!_result->is_register() || _result->is_virtual()),
|
|
540 "shouldn't use set_destroys_register with physical regsiters");
|
|
541 if (_destroys_register && _result->is_register()) {
|
|
542 if (_new_result->is_illegal()) {
|
|
543 _new_result = _gen->new_register(type());
|
|
544 gen()->lir()->move(_result, _new_result);
|
|
545 }
|
|
546 return _new_result;
|
|
547 } else {
|
|
548 return _result;
|
|
549 }
|
|
550 return _result;
|
|
551 }
|
|
552
|
|
553 void set_result(LIR_Opr opr);
|
|
554
|
|
555 void load_item();
|
|
556 void load_byte_item();
|
|
557 void load_nonconstant();
|
|
558 // load any values which can't be expressed as part of a single store instruction
|
|
559 void load_for_store(BasicType store_type);
|
|
560 void load_item_force(LIR_Opr reg);
|
|
561
|
|
562 void dont_load_item() {
|
|
563 // do nothing
|
|
564 }
|
|
565
|
|
566 void set_destroys_register() {
|
|
567 _destroys_register = true;
|
|
568 }
|
|
569
|
|
570 bool is_constant() const { return value()->as_Constant() != NULL; }
|
|
571 bool is_stack() { return result()->is_stack(); }
|
|
572 bool is_register() { return result()->is_register(); }
|
|
573
|
|
574 ciObject* get_jobject_constant() const;
|
|
575 jint get_jint_constant() const;
|
|
576 jlong get_jlong_constant() const;
|
|
577 jfloat get_jfloat_constant() const;
|
|
578 jdouble get_jdouble_constant() const;
|
|
579 jint get_address_constant() const;
|
|
580 };
|