1 /*
2 * Copyright (c) 2000, 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
25 #ifndef SHARE_C1_C1_LIR_HPP
26 #define SHARE_C1_C1_LIR_HPP
27
28 #include "c1/c1_Defs.hpp"
29 #include "c1/c1_ValueType.hpp"
30 #include "oops/method.hpp"
31 #include "utilities/globalDefinitions.hpp"
32
33 class BlockBegin;
34 class BlockList;
35 class LIR_Assembler;
36 class CodeEmitInfo;
37 class CodeStub;
38 class CodeStubList;
39 class ArrayCopyStub;
40 class LIR_Op;
41 class ciType;
42 class ValueType;
43 class LIR_OpVisitState;
44 class FpuStackSim;
45
46 //---------------------------------------------------------------------
47 // LIR Operands
48 // LIR_OprDesc
49 // LIR_OprPtr
50 // LIR_Const
51 // LIR_Address
52 //---------------------------------------------------------------------
53 class LIR_OprDesc;
54 class LIR_OprPtr;
55 class LIR_Const;
56 class LIR_Address;
57 class LIR_OprVisitor;
58
59
60 typedef LIR_OprDesc* LIR_Opr;
61 typedef int RegNr;
62
63 typedef GrowableArray<LIR_Opr> LIR_OprList;
64 typedef GrowableArray<LIR_Op*> LIR_OpArray;
65 typedef GrowableArray<LIR_Op*> LIR_OpList;
66
67 // define LIR_OprPtr early so LIR_OprDesc can refer to it
68 class LIR_OprPtr: public CompilationResourceObj {
69 public:
70 bool is_oop_pointer() const { return (type() == T_OBJECT); }
71 bool is_float_kind() const { BasicType t = type(); return (t == T_FLOAT) || (t == T_DOUBLE); }
72
73 virtual LIR_Const* as_constant() { return NULL; }
74 virtual LIR_Address* as_address() { return NULL; }
75 virtual BasicType type() const = 0;
76 virtual void print_value_on(outputStream* out) const = 0;
77 };
78
79
80
81 // LIR constants
82 class LIR_Const: public LIR_OprPtr {
83 private:
84 JavaValue _value;
85
86 void type_check(BasicType t) const { assert(type() == t, "type check"); }
87 void type_check(BasicType t1, BasicType t2) const { assert(type() == t1 || type() == t2, "type check"); }
88 void type_check(BasicType t1, BasicType t2, BasicType t3) const { assert(type() == t1 || type() == t2 || type() == t3, "type check"); }
89
90 public:
91 LIR_Const(jint i, bool is_address=false) { _value.set_type(is_address?T_ADDRESS:T_INT); _value.set_jint(i); }
92 LIR_Const(jlong l) { _value.set_type(T_LONG); _value.set_jlong(l); }
93 LIR_Const(jfloat f) { _value.set_type(T_FLOAT); _value.set_jfloat(f); }
94 LIR_Const(jdouble d) { _value.set_type(T_DOUBLE); _value.set_jdouble(d); }
95 LIR_Const(jobject o) { _value.set_type(T_OBJECT); _value.set_jobject(o); }
96 LIR_Const(void* p) {
97 #ifdef _LP64
98 assert(sizeof(jlong) >= sizeof(p), "too small");;
99 _value.set_type(T_LONG); _value.set_jlong((jlong)p);
100 #else
101 assert(sizeof(jint) >= sizeof(p), "too small");;
102 _value.set_type(T_INT); _value.set_jint((jint)p);
103 #endif
104 }
105 LIR_Const(Metadata* m) {
106 _value.set_type(T_METADATA);
107 #ifdef _LP64
108 _value.set_jlong((jlong)m);
109 #else
110 _value.set_jint((jint)m);
111 #endif // _LP64
112 }
113
114 virtual BasicType type() const { return _value.get_type(); }
115 virtual LIR_Const* as_constant() { return this; }
116
117 jint as_jint() const { type_check(T_INT, T_ADDRESS); return _value.get_jint(); }
118 jlong as_jlong() const { type_check(T_LONG ); return _value.get_jlong(); }
119 jfloat as_jfloat() const { type_check(T_FLOAT ); return _value.get_jfloat(); }
120 jdouble as_jdouble() const { type_check(T_DOUBLE); return _value.get_jdouble(); }
121 jobject as_jobject() const { type_check(T_OBJECT); return _value.get_jobject(); }
122 jint as_jint_lo() const { type_check(T_LONG ); return low(_value.get_jlong()); }
123 jint as_jint_hi() const { type_check(T_LONG ); return high(_value.get_jlong()); }
124
125 #ifdef _LP64
126 address as_pointer() const { type_check(T_LONG ); return (address)_value.get_jlong(); }
127 Metadata* as_metadata() const { type_check(T_METADATA); return (Metadata*)_value.get_jlong(); }
128 #else
129 address as_pointer() const { type_check(T_INT ); return (address)_value.get_jint(); }
130 Metadata* as_metadata() const { type_check(T_METADATA); return (Metadata*)_value.get_jint(); }
131 #endif
132
133
134 jint as_jint_bits() const { type_check(T_FLOAT, T_INT, T_ADDRESS); return _value.get_jint(); }
135 jint as_jint_lo_bits() const {
136 if (type() == T_DOUBLE) {
137 return low(jlong_cast(_value.get_jdouble()));
138 } else {
139 return as_jint_lo();
140 }
141 }
142 jint as_jint_hi_bits() const {
143 if (type() == T_DOUBLE) {
144 return high(jlong_cast(_value.get_jdouble()));
145 } else {
146 return as_jint_hi();
147 }
148 }
149 jlong as_jlong_bits() const {
150 if (type() == T_DOUBLE) {
151 return jlong_cast(_value.get_jdouble());
152 } else {
153 return as_jlong();
154 }
155 }
156
157 virtual void print_value_on(outputStream* out) const PRODUCT_RETURN;
158
159
160 bool is_zero_float() {
161 jfloat f = as_jfloat();
162 jfloat ok = 0.0f;
163 return jint_cast(f) == jint_cast(ok);
164 }
165
166 bool is_one_float() {
167 jfloat f = as_jfloat();
168 return !g_isnan(f) && g_isfinite(f) && f == 1.0;
169 }
170
171 bool is_zero_double() {
172 jdouble d = as_jdouble();
173 jdouble ok = 0.0;
174 return jlong_cast(d) == jlong_cast(ok);
175 }
176
177 bool is_one_double() {
178 jdouble d = as_jdouble();
179 return !g_isnan(d) && g_isfinite(d) && d == 1.0;
180 }
181 };
182
183
184 //---------------------LIR Operand descriptor------------------------------------
185 //
186 // The class LIR_OprDesc represents a LIR instruction operand;
187 // it can be a register (ALU/FPU), stack location or a constant;
188 // Constants and addresses are represented as resource area allocated
189 // structures (see above).
190 // Registers and stack locations are inlined into the this pointer
191 // (see value function).
192
193 class LIR_OprDesc: public CompilationResourceObj {
194 public:
195 // value structure:
196 // data opr-type opr-kind
197 // +--------------+-------+-------+
198 // [max...........|7 6 5 4|3 2 1 0]
199 // ^
200 // is_pointer bit
201 //
202 // lowest bit cleared, means it is a structure pointer
203 // we need 4 bits to represent types
204
205 private:
206 friend class LIR_OprFact;
207
208 // Conversion
209 intptr_t value() const { return (intptr_t) this; }
210
211 bool check_value_mask(intptr_t mask, intptr_t masked_value) const {
212 return (value() & mask) == masked_value;
213 }
214
215 enum OprKind {
216 pointer_value = 0
217 , stack_value = 1
218 , cpu_register = 3
219 , fpu_register = 5
220 , illegal_value = 7
221 };
222
223 enum OprBits {
224 pointer_bits = 1
225 , kind_bits = 3
226 , type_bits = 4
227 , size_bits = 2
228 , destroys_bits = 1
229 , virtual_bits = 1
230 , is_xmm_bits = 1
231 , last_use_bits = 1
232 , is_fpu_stack_offset_bits = 1 // used in assertion checking on x86 for FPU stack slot allocation
233 , non_data_bits = kind_bits + type_bits + size_bits + destroys_bits + last_use_bits +
234 is_fpu_stack_offset_bits + virtual_bits + is_xmm_bits
235 , data_bits = BitsPerInt - non_data_bits
236 , reg_bits = data_bits / 2 // for two registers in one value encoding
237 };
238
239 enum OprShift {
240 kind_shift = 0
241 , type_shift = kind_shift + kind_bits
242 , size_shift = type_shift + type_bits
243 , destroys_shift = size_shift + size_bits
244 , last_use_shift = destroys_shift + destroys_bits
245 , is_fpu_stack_offset_shift = last_use_shift + last_use_bits
246 , virtual_shift = is_fpu_stack_offset_shift + is_fpu_stack_offset_bits
247 , is_xmm_shift = virtual_shift + virtual_bits
248 , data_shift = is_xmm_shift + is_xmm_bits
249 , reg1_shift = data_shift
250 , reg2_shift = data_shift + reg_bits
251
252 };
253
254 enum OprSize {
255 single_size = 0 << size_shift
256 , double_size = 1 << size_shift
257 };
258
259 enum OprMask {
260 kind_mask = right_n_bits(kind_bits)
261 , type_mask = right_n_bits(type_bits) << type_shift
262 , size_mask = right_n_bits(size_bits) << size_shift
263 , last_use_mask = right_n_bits(last_use_bits) << last_use_shift
264 , is_fpu_stack_offset_mask = right_n_bits(is_fpu_stack_offset_bits) << is_fpu_stack_offset_shift
265 , virtual_mask = right_n_bits(virtual_bits) << virtual_shift
266 , is_xmm_mask = right_n_bits(is_xmm_bits) << is_xmm_shift
267 , pointer_mask = right_n_bits(pointer_bits)
268 , lower_reg_mask = right_n_bits(reg_bits)
269 , no_type_mask = (int)(~(type_mask | last_use_mask | is_fpu_stack_offset_mask))
270 };
271
272 uintptr_t data() const { return value() >> data_shift; }
273 int lo_reg_half() const { return data() & lower_reg_mask; }
274 int hi_reg_half() const { return (data() >> reg_bits) & lower_reg_mask; }
275 OprKind kind_field() const { return (OprKind)(value() & kind_mask); }
276 OprSize size_field() const { return (OprSize)(value() & size_mask); }
277
278 static char type_char(BasicType t);
279
280 public:
281 enum {
282 vreg_base = ConcreteRegisterImpl::number_of_registers,
283 vreg_max = (1 << data_bits) - 1
284 };
285
286 static inline LIR_Opr illegalOpr();
287
288 enum OprType {
289 unknown_type = 0 << type_shift // means: not set (catch uninitialized types)
290 , int_type = 1 << type_shift
291 , long_type = 2 << type_shift
292 , object_type = 3 << type_shift
293 , address_type = 4 << type_shift
294 , float_type = 5 << type_shift
295 , double_type = 6 << type_shift
296 , metadata_type = 7 << type_shift
297 };
298 friend OprType as_OprType(BasicType t);
299 friend BasicType as_BasicType(OprType t);
300
301 OprType type_field_valid() const { assert(is_register() || is_stack(), "should not be called otherwise"); return (OprType)(value() & type_mask); }
302 OprType type_field() const { return is_illegal() ? unknown_type : (OprType)(value() & type_mask); }
303
304 static OprSize size_for(BasicType t) {
305 switch (t) {
306 case T_LONG:
307 case T_DOUBLE:
308 return double_size;
309 break;
310
311 case T_FLOAT:
312 case T_BOOLEAN:
313 case T_CHAR:
314 case T_BYTE:
315 case T_SHORT:
316 case T_INT:
317 case T_ADDRESS:
318 case T_OBJECT:
319 case T_ARRAY:
320 case T_METADATA:
321 return single_size;
322 break;
323
324 default:
325 ShouldNotReachHere();
326 return single_size;
327 }
328 }
329
330
331 void validate_type() const PRODUCT_RETURN;
332
333 BasicType type() const {
334 if (is_pointer()) {
335 return pointer()->type();
336 }
337 return as_BasicType(type_field());
338 }
339
340
341 ValueType* value_type() const { return as_ValueType(type()); }
342
343 char type_char() const { return type_char((is_pointer()) ? pointer()->type() : type()); }
344
345 bool is_equal(LIR_Opr opr) const { return this == opr; }
346 // checks whether types are same
347 bool is_same_type(LIR_Opr opr) const {
348 assert(type_field() != unknown_type &&
349 opr->type_field() != unknown_type, "shouldn't see unknown_type");
350 return type_field() == opr->type_field();
351 }
352 bool is_same_register(LIR_Opr opr) {
353 return (is_register() && opr->is_register() &&
354 kind_field() == opr->kind_field() &&
355 (value() & no_type_mask) == (opr->value() & no_type_mask));
356 }
357
358 bool is_pointer() const { return check_value_mask(pointer_mask, pointer_value); }
359 bool is_illegal() const { return kind_field() == illegal_value; }
360 bool is_valid() const { return kind_field() != illegal_value; }
361
362 bool is_register() const { return is_cpu_register() || is_fpu_register(); }
363 bool is_virtual() const { return is_virtual_cpu() || is_virtual_fpu(); }
364
365 bool is_constant() const { return is_pointer() && pointer()->as_constant() != NULL; }
366 bool is_address() const { return is_pointer() && pointer()->as_address() != NULL; }
367
368 bool is_float_kind() const { return is_pointer() ? pointer()->is_float_kind() : (kind_field() == fpu_register); }
369 bool is_oop() const;
370
371 // semantic for fpu- and xmm-registers:
372 // * is_float and is_double return true for xmm_registers
373 // (so is_single_fpu and is_single_xmm are true)
374 // * So you must always check for is_???_xmm prior to is_???_fpu to
375 // distinguish between fpu- and xmm-registers
376
377 bool is_stack() const { validate_type(); return check_value_mask(kind_mask, stack_value); }
378 bool is_single_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | single_size); }
379 bool is_double_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | double_size); }
380
381 bool is_cpu_register() const { validate_type(); return check_value_mask(kind_mask, cpu_register); }
382 bool is_virtual_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register | virtual_mask); }
383 bool is_fixed_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register); }
384 bool is_single_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | single_size); }
385 bool is_double_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | double_size); }
386
387 bool is_fpu_register() const { validate_type(); return check_value_mask(kind_mask, fpu_register); }
388 bool is_virtual_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register | virtual_mask); }
389 bool is_fixed_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register); }
390 bool is_single_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | single_size); }
391 bool is_double_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | double_size); }
392
393 bool is_xmm_register() const { validate_type(); return check_value_mask(kind_mask | is_xmm_mask, fpu_register | is_xmm_mask); }
394 bool is_single_xmm() const { validate_type(); return check_value_mask(kind_mask | size_mask | is_xmm_mask, fpu_register | single_size | is_xmm_mask); }
395 bool is_double_xmm() const { validate_type(); return check_value_mask(kind_mask | size_mask | is_xmm_mask, fpu_register | double_size | is_xmm_mask); }
396
397 // fast accessor functions for special bits that do not work for pointers
398 // (in this functions, the check for is_pointer() is omitted)
399 bool is_single_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, single_size); }
400 bool is_double_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, double_size); }
401 bool is_virtual_register() const { assert(is_register(), "type check"); return check_value_mask(virtual_mask, virtual_mask); }
402 bool is_oop_register() const { assert(is_register() || is_stack(), "type check"); return type_field_valid() == object_type; }
403 BasicType type_register() const { assert(is_register() || is_stack(), "type check"); return as_BasicType(type_field_valid()); }
404
405 bool is_last_use() const { assert(is_register(), "only works for registers"); return (value() & last_use_mask) != 0; }
406 bool is_fpu_stack_offset() const { assert(is_register(), "only works for registers"); return (value() & is_fpu_stack_offset_mask) != 0; }
407 LIR_Opr make_last_use() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | last_use_mask); }
408 LIR_Opr make_fpu_stack_offset() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | is_fpu_stack_offset_mask); }
409
410
411 int single_stack_ix() const { assert(is_single_stack() && !is_virtual(), "type check"); return (int)data(); }
412 int double_stack_ix() const { assert(is_double_stack() && !is_virtual(), "type check"); return (int)data(); }
413 RegNr cpu_regnr() const { assert(is_single_cpu() && !is_virtual(), "type check"); return (RegNr)data(); }
414 RegNr cpu_regnrLo() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
415 RegNr cpu_regnrHi() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
416 RegNr fpu_regnr() const { assert(is_single_fpu() && !is_virtual(), "type check"); return (RegNr)data(); }
417 RegNr fpu_regnrLo() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
418 RegNr fpu_regnrHi() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
419 RegNr xmm_regnr() const { assert(is_single_xmm() && !is_virtual(), "type check"); return (RegNr)data(); }
420 RegNr xmm_regnrLo() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
421 RegNr xmm_regnrHi() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
422 int vreg_number() const { assert(is_virtual(), "type check"); return (RegNr)data(); }
423
424 LIR_OprPtr* pointer() const { assert(is_pointer(), "type check"); return (LIR_OprPtr*)this; }
425 LIR_Const* as_constant_ptr() const { return pointer()->as_constant(); }
426 LIR_Address* as_address_ptr() const { return pointer()->as_address(); }
427
428 Register as_register() const;
429 Register as_register_lo() const;
430 Register as_register_hi() const;
431
432 Register as_pointer_register() {
433 #ifdef _LP64
434 if (is_double_cpu()) {
435 assert(as_register_lo() == as_register_hi(), "should be a single register");
436 return as_register_lo();
437 }
438 #endif
439 return as_register();
440 }
441
442 FloatRegister as_float_reg () const;
443 FloatRegister as_double_reg () const;
444 #ifdef X86
445 XMMRegister as_xmm_float_reg () const;
446 XMMRegister as_xmm_double_reg() const;
447 // for compatibility with RInfo
448 int fpu() const { return lo_reg_half(); }
449 #endif
450
451 jint as_jint() const { return as_constant_ptr()->as_jint(); }
452 jlong as_jlong() const { return as_constant_ptr()->as_jlong(); }
453 jfloat as_jfloat() const { return as_constant_ptr()->as_jfloat(); }
454 jdouble as_jdouble() const { return as_constant_ptr()->as_jdouble(); }
455 jobject as_jobject() const { return as_constant_ptr()->as_jobject(); }
456
457 void print() const PRODUCT_RETURN;
458 void print(outputStream* out) const PRODUCT_RETURN;
459 };
460
461
462 inline LIR_OprDesc::OprType as_OprType(BasicType type) {
463 switch (type) {
464 case T_INT: return LIR_OprDesc::int_type;
465 case T_LONG: return LIR_OprDesc::long_type;
466 case T_FLOAT: return LIR_OprDesc::float_type;
467 case T_DOUBLE: return LIR_OprDesc::double_type;
468 case T_OBJECT:
469 case T_ARRAY: return LIR_OprDesc::object_type;
470 case T_ADDRESS: return LIR_OprDesc::address_type;
471 case T_METADATA: return LIR_OprDesc::metadata_type;
472 case T_ILLEGAL: // fall through
473 default: ShouldNotReachHere(); return LIR_OprDesc::unknown_type;
474 }
475 }
476
477 inline BasicType as_BasicType(LIR_OprDesc::OprType t) {
478 switch (t) {
479 case LIR_OprDesc::int_type: return T_INT;
480 case LIR_OprDesc::long_type: return T_LONG;
481 case LIR_OprDesc::float_type: return T_FLOAT;
482 case LIR_OprDesc::double_type: return T_DOUBLE;
483 case LIR_OprDesc::object_type: return T_OBJECT;
484 case LIR_OprDesc::address_type: return T_ADDRESS;
485 case LIR_OprDesc::metadata_type:return T_METADATA;
486 case LIR_OprDesc::unknown_type: // fall through
487 default: ShouldNotReachHere(); return T_ILLEGAL;
488 }
489 }
490
491
492 // LIR_Address
493 class LIR_Address: public LIR_OprPtr {
494 friend class LIR_OpVisitState;
495
496 public:
497 // NOTE: currently these must be the log2 of the scale factor (and
498 // must also be equivalent to the ScaleFactor enum in
499 // assembler_i486.hpp)
500 enum Scale {
501 times_1 = 0,
502 times_2 = 1,
503 times_4 = 2,
504 times_8 = 3
505 };
506
507 private:
508 LIR_Opr _base;
509 LIR_Opr _index;
510 Scale _scale;
511 intx _disp;
512 BasicType _type;
513
514 public:
515 LIR_Address(LIR_Opr base, LIR_Opr index, BasicType type):
516 _base(base)
517 , _index(index)
518 , _scale(times_1)
519 , _disp(0)
520 , _type(type) { verify(); }
521
522 LIR_Address(LIR_Opr base, intx disp, BasicType type):
523 _base(base)
524 , _index(LIR_OprDesc::illegalOpr())
525 , _scale(times_1)
526 , _disp(disp)
527 , _type(type) { verify(); }
528
529 LIR_Address(LIR_Opr base, BasicType type):
530 _base(base)
531 , _index(LIR_OprDesc::illegalOpr())
532 , _scale(times_1)
533 , _disp(0)
534 , _type(type) { verify(); }
535
536 LIR_Address(LIR_Opr base, LIR_Opr index, intx disp, BasicType type):
537 _base(base)
538 , _index(index)
539 , _scale(times_1)
540 , _disp(disp)
541 , _type(type) { verify(); }
542
543 LIR_Address(LIR_Opr base, LIR_Opr index, Scale scale, intx disp, BasicType type):
544 _base(base)
545 , _index(index)
546 , _scale(scale)
547 , _disp(disp)
548 , _type(type) { verify(); }
549
550 LIR_Opr base() const { return _base; }
551 LIR_Opr index() const { return _index; }
552 Scale scale() const { return _scale; }
553 intx disp() const { return _disp; }
554
555 bool equals(LIR_Address* other) const { return base() == other->base() && index() == other->index() && disp() == other->disp() && scale() == other->scale(); }
556
557 virtual LIR_Address* as_address() { return this; }
558 virtual BasicType type() const { return _type; }
559 virtual void print_value_on(outputStream* out) const PRODUCT_RETURN;
560
561 void verify() const PRODUCT_RETURN;
562
563 static Scale scale(BasicType type);
564 };
565
566
567 // operand factory
568 class LIR_OprFact: public AllStatic {
569 public:
570
571 static LIR_Opr illegalOpr;
572
573 static LIR_Opr single_cpu(int reg) {
574 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
575 LIR_OprDesc::int_type |
576 LIR_OprDesc::cpu_register |
577 LIR_OprDesc::single_size);
578 }
579 static LIR_Opr single_cpu_oop(int reg) {
580 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
581 LIR_OprDesc::object_type |
582 LIR_OprDesc::cpu_register |
583 LIR_OprDesc::single_size);
584 }
585 static LIR_Opr single_cpu_address(int reg) {
586 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
587 LIR_OprDesc::address_type |
588 LIR_OprDesc::cpu_register |
589 LIR_OprDesc::single_size);
590 }
591 static LIR_Opr single_cpu_metadata(int reg) {
592 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
593 LIR_OprDesc::metadata_type |
594 LIR_OprDesc::cpu_register |
595 LIR_OprDesc::single_size);
596 }
597 static LIR_Opr double_cpu(int reg1, int reg2) {
598 LP64_ONLY(assert(reg1 == reg2, "must be identical"));
599 return (LIR_Opr)(intptr_t)((reg1 << LIR_OprDesc::reg1_shift) |
600 (reg2 << LIR_OprDesc::reg2_shift) |
601 LIR_OprDesc::long_type |
602 LIR_OprDesc::cpu_register |
603 LIR_OprDesc::double_size);
604 }
605
606 static LIR_Opr single_fpu(int reg) {
607 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
608 LIR_OprDesc::float_type |
609 LIR_OprDesc::fpu_register |
610 LIR_OprDesc::single_size);
611 }
612
613 // Platform dependant.
614 static LIR_Opr double_fpu(int reg1, int reg2 = -1 /*fnoreg*/);
615
616 #ifdef ARM32
617 static LIR_Opr single_softfp(int reg) {
618 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
619 LIR_OprDesc::float_type |
620 LIR_OprDesc::cpu_register |
621 LIR_OprDesc::single_size);
622 }
623 static LIR_Opr double_softfp(int reg1, int reg2) {
624 return (LIR_Opr)(intptr_t)((reg1 << LIR_OprDesc::reg1_shift) |
625 (reg2 << LIR_OprDesc::reg2_shift) |
626 LIR_OprDesc::double_type |
627 LIR_OprDesc::cpu_register |
628 LIR_OprDesc::double_size);
629 }
630 #endif // ARM32
631
632 #if defined(X86)
633 static LIR_Opr single_xmm(int reg) {
634 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
635 LIR_OprDesc::float_type |
636 LIR_OprDesc::fpu_register |
637 LIR_OprDesc::single_size |
638 LIR_OprDesc::is_xmm_mask);
639 }
640 static LIR_Opr double_xmm(int reg) {
641 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
642 (reg << LIR_OprDesc::reg2_shift) |
643 LIR_OprDesc::double_type |
644 LIR_OprDesc::fpu_register |
645 LIR_OprDesc::double_size |
646 LIR_OprDesc::is_xmm_mask);
647 }
648 #endif // X86
649
650 static LIR_Opr virtual_register(int index, BasicType type) {
651 LIR_Opr res;
652 switch (type) {
653 case T_OBJECT: // fall through
654 case T_ARRAY:
655 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
656 LIR_OprDesc::object_type |
657 LIR_OprDesc::cpu_register |
658 LIR_OprDesc::single_size |
659 LIR_OprDesc::virtual_mask);
660 break;
661
662 case T_METADATA:
663 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
664 LIR_OprDesc::metadata_type|
665 LIR_OprDesc::cpu_register |
666 LIR_OprDesc::single_size |
667 LIR_OprDesc::virtual_mask);
668 break;
669
670 case T_INT:
671 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
672 LIR_OprDesc::int_type |
673 LIR_OprDesc::cpu_register |
674 LIR_OprDesc::single_size |
675 LIR_OprDesc::virtual_mask);
676 break;
677
678 case T_ADDRESS:
679 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
680 LIR_OprDesc::address_type |
681 LIR_OprDesc::cpu_register |
682 LIR_OprDesc::single_size |
683 LIR_OprDesc::virtual_mask);
684 break;
685
686 case T_LONG:
687 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
688 LIR_OprDesc::long_type |
689 LIR_OprDesc::cpu_register |
690 LIR_OprDesc::double_size |
691 LIR_OprDesc::virtual_mask);
692 break;
693
694 #ifdef __SOFTFP__
695 case T_FLOAT:
696 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
697 LIR_OprDesc::float_type |
698 LIR_OprDesc::cpu_register |
699 LIR_OprDesc::single_size |
700 LIR_OprDesc::virtual_mask);
701 break;
702 case T_DOUBLE:
703 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
704 LIR_OprDesc::double_type |
705 LIR_OprDesc::cpu_register |
706 LIR_OprDesc::double_size |
707 LIR_OprDesc::virtual_mask);
708 break;
709 #else // __SOFTFP__
710 case T_FLOAT:
711 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
712 LIR_OprDesc::float_type |
713 LIR_OprDesc::fpu_register |
714 LIR_OprDesc::single_size |
715 LIR_OprDesc::virtual_mask);
716 break;
717
718 case
719 T_DOUBLE: res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
720 LIR_OprDesc::double_type |
721 LIR_OprDesc::fpu_register |
722 LIR_OprDesc::double_size |
723 LIR_OprDesc::virtual_mask);
724 break;
725 #endif // __SOFTFP__
726 default: ShouldNotReachHere(); res = illegalOpr;
727 }
728
729 #ifdef ASSERT
730 res->validate_type();
731 assert(res->vreg_number() == index, "conversion check");
732 assert(index >= LIR_OprDesc::vreg_base, "must start at vreg_base");
733 assert(index <= (max_jint >> LIR_OprDesc::data_shift), "index is too big");
734
735 // old-style calculation; check if old and new method are equal
736 LIR_OprDesc::OprType t = as_OprType(type);
737 #ifdef __SOFTFP__
738 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
739 t |
740 LIR_OprDesc::cpu_register |
741 LIR_OprDesc::size_for(type) | LIR_OprDesc::virtual_mask);
742 #else // __SOFTFP__
743 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | t |
744 ((type == T_FLOAT || type == T_DOUBLE) ? LIR_OprDesc::fpu_register : LIR_OprDesc::cpu_register) |
745 LIR_OprDesc::size_for(type) | LIR_OprDesc::virtual_mask);
746 assert(res == old_res, "old and new method not equal");
747 #endif // __SOFTFP__
748 #endif // ASSERT
749
750 return res;
751 }
752
753 // 'index' is computed by FrameMap::local_stack_pos(index); do not use other parameters as
754 // the index is platform independent; a double stack useing indeces 2 and 3 has always
755 // index 2.
756 static LIR_Opr stack(int index, BasicType type) {
757 LIR_Opr res;
758 switch (type) {
759 case T_OBJECT: // fall through
760 case T_ARRAY:
761 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
762 LIR_OprDesc::object_type |
763 LIR_OprDesc::stack_value |
764 LIR_OprDesc::single_size);
765 break;
766
767 case T_METADATA:
768 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
769 LIR_OprDesc::metadata_type |
770 LIR_OprDesc::stack_value |
771 LIR_OprDesc::single_size);
772 break;
773 case T_INT:
774 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
775 LIR_OprDesc::int_type |
776 LIR_OprDesc::stack_value |
777 LIR_OprDesc::single_size);
778 break;
779
780 case T_ADDRESS:
781 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
782 LIR_OprDesc::address_type |
783 LIR_OprDesc::stack_value |
784 LIR_OprDesc::single_size);
785 break;
786
787 case T_LONG:
788 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
789 LIR_OprDesc::long_type |
790 LIR_OprDesc::stack_value |
791 LIR_OprDesc::double_size);
792 break;
793
794 case T_FLOAT:
795 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
796 LIR_OprDesc::float_type |
797 LIR_OprDesc::stack_value |
798 LIR_OprDesc::single_size);
799 break;
800 case T_DOUBLE:
801 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
802 LIR_OprDesc::double_type |
803 LIR_OprDesc::stack_value |
804 LIR_OprDesc::double_size);
805 break;
806
807 default: ShouldNotReachHere(); res = illegalOpr;
808 }
809
810 #ifdef ASSERT
811 assert(index >= 0, "index must be positive");
812 assert(index <= (max_jint >> LIR_OprDesc::data_shift), "index is too big");
813
814 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
815 LIR_OprDesc::stack_value |
816 as_OprType(type) |
817 LIR_OprDesc::size_for(type));
818 assert(res == old_res, "old and new method not equal");
819 #endif
820
821 return res;
822 }
823
824 static LIR_Opr intConst(jint i) { return (LIR_Opr)(new LIR_Const(i)); }
825 static LIR_Opr longConst(jlong l) { return (LIR_Opr)(new LIR_Const(l)); }
826 static LIR_Opr floatConst(jfloat f) { return (LIR_Opr)(new LIR_Const(f)); }
827 static LIR_Opr doubleConst(jdouble d) { return (LIR_Opr)(new LIR_Const(d)); }
828 static LIR_Opr oopConst(jobject o) { return (LIR_Opr)(new LIR_Const(o)); }
829 static LIR_Opr address(LIR_Address* a) { return (LIR_Opr)a; }
830 static LIR_Opr intptrConst(void* p) { return (LIR_Opr)(new LIR_Const(p)); }
831 static LIR_Opr intptrConst(intptr_t v) { return (LIR_Opr)(new LIR_Const((void*)v)); }
832 static LIR_Opr illegal() { return (LIR_Opr)-1; }
833 static LIR_Opr addressConst(jint i) { return (LIR_Opr)(new LIR_Const(i, true)); }
834 static LIR_Opr metadataConst(Metadata* m) { return (LIR_Opr)(new LIR_Const(m)); }
835
836 static LIR_Opr value_type(ValueType* type);
837 };
838
839
840 //-------------------------------------------------------------------------------
841 // LIR Instructions
842 //-------------------------------------------------------------------------------
843 //
844 // Note:
845 // - every instruction has a result operand
846 // - every instruction has an CodeEmitInfo operand (can be revisited later)
847 // - every instruction has a LIR_OpCode operand
848 // - LIR_OpN, means an instruction that has N input operands
849 //
850 // class hierarchy:
851 //
852 class LIR_Op;
853 class LIR_Op0;
854 class LIR_OpLabel;
855 class LIR_Op1;
856 class LIR_OpBranch;
857 class LIR_OpConvert;
858 class LIR_OpAllocObj;
859 class LIR_OpRoundFP;
860 class LIR_Op2;
861 class LIR_OpDelay;
862 class LIR_Op3;
863 class LIR_OpAllocArray;
864 class LIR_OpCall;
865 class LIR_OpJavaCall;
866 class LIR_OpRTCall;
867 class LIR_OpArrayCopy;
868 class LIR_OpUpdateCRC32;
869 class LIR_OpLock;
870 class LIR_OpTypeCheck;
871 class LIR_OpCompareAndSwap;
872 class LIR_OpProfileCall;
873 class LIR_OpProfileType;
874 #ifdef ASSERT
875 class LIR_OpAssert;
876 #endif
877
878 // LIR operation codes
879 enum LIR_Code {
880 lir_none
881 , begin_op0
882 , lir_label
883 , lir_nop
884 , lir_backwardbranch_target
885 , lir_std_entry
886 , lir_osr_entry
887 , lir_fpop_raw
888 , lir_breakpoint
889 , lir_rtcall
890 , lir_membar
891 , lir_membar_acquire
892 , lir_membar_release
893 , lir_membar_loadload
894 , lir_membar_storestore
895 , lir_membar_loadstore
896 , lir_membar_storeload
897 , lir_get_thread
898 , lir_on_spin_wait
899 , end_op0
900 , begin_op1
901 , lir_fxch
902 , lir_fld
903 , lir_push
904 , lir_pop
905 , lir_null_check
906 , lir_return
907 , lir_leal
908 , lir_branch
909 , lir_cond_float_branch
910 , lir_move
911 , lir_convert
912 , lir_alloc_object
913 , lir_monaddr
914 , lir_roundfp
915 , lir_safepoint
916 , lir_unwind
917 , end_op1
918 , begin_op2
919 , lir_cmp
920 , lir_cmp_l2i
921 , lir_ucmp_fd2i
922 , lir_cmp_fd2i
923 , lir_cmove
924 , lir_add
925 , lir_sub
926 , lir_mul
927 , lir_mul_strictfp
928 , lir_div
929 , lir_div_strictfp
930 , lir_rem
931 , lir_sqrt
932 , lir_abs
933 , lir_neg
934 , lir_tan
935 , lir_log10
936 , lir_logic_and
937 , lir_logic_or
938 , lir_logic_xor
939 , lir_shl
940 , lir_shr
941 , lir_ushr
942 , lir_alloc_array
943 , lir_throw
944 , lir_xadd
945 , lir_xchg
946 , end_op2
947 , begin_op3
948 , lir_idiv
949 , lir_irem
950 , lir_fmad
951 , lir_fmaf
952 , end_op3
953 , begin_opJavaCall
954 , lir_static_call
955 , lir_optvirtual_call
956 , lir_icvirtual_call
957 , lir_virtual_call
958 , lir_dynamic_call
959 , end_opJavaCall
960 , begin_opArrayCopy
961 , lir_arraycopy
962 , end_opArrayCopy
963 , begin_opUpdateCRC32
964 , lir_updatecrc32
965 , end_opUpdateCRC32
966 , begin_opLock
967 , lir_lock
968 , lir_unlock
969 , end_opLock
970 , begin_delay_slot
971 , lir_delay_slot
972 , end_delay_slot
973 , begin_opTypeCheck
974 , lir_instanceof
975 , lir_checkcast
976 , lir_store_check
977 , end_opTypeCheck
978 , begin_opCompareAndSwap
979 , lir_cas_long
980 , lir_cas_obj
981 , lir_cas_int
982 , end_opCompareAndSwap
983 , begin_opMDOProfile
984 , lir_profile_call
985 , lir_profile_type
986 , end_opMDOProfile
987 , begin_opAssert
988 , lir_assert
989 , end_opAssert
990 };
991
992
993 enum LIR_Condition {
994 lir_cond_equal
995 , lir_cond_notEqual
996 , lir_cond_less
997 , lir_cond_lessEqual
998 , lir_cond_greaterEqual
999 , lir_cond_greater
1000 , lir_cond_belowEqual
1001 , lir_cond_aboveEqual
1002 , lir_cond_always
1003 , lir_cond_unknown = -1
1004 };
1005
1006
1007 enum LIR_PatchCode {
1008 lir_patch_none,
1009 lir_patch_low,
1010 lir_patch_high,
1011 lir_patch_normal
1012 };
1013
1014
1015 enum LIR_MoveKind {
1016 lir_move_normal,
1017 lir_move_volatile,
1018 lir_move_unaligned,
1019 lir_move_wide,
1020 lir_move_max_flag
1021 };
1022
1023
1024 // --------------------------------------------------
1025 // LIR_Op
1026 // --------------------------------------------------
1027 class LIR_Op: public CompilationResourceObj {
1028 friend class LIR_OpVisitState;
1029
1030 #ifdef ASSERT
1031 private:
1032 const char * _file;
1033 int _line;
1034 #endif
1035
1036 protected:
1037 LIR_Opr _result;
1038 unsigned short _code;
1039 unsigned short _flags;
1040 CodeEmitInfo* _info;
1041 int _id; // value id for register allocation
1042 int _fpu_pop_count;
1043 Instruction* _source; // for debugging
1044
1045 static void print_condition(outputStream* out, LIR_Condition cond) PRODUCT_RETURN;
1046
1047 protected:
1048 static bool is_in_range(LIR_Code test, LIR_Code start, LIR_Code end) { return start < test && test < end; }
1049
1050 public:
1051 LIR_Op()
1052 :
1053 #ifdef ASSERT
1054 _file(NULL)
1055 , _line(0),
1056 #endif
1057 _result(LIR_OprFact::illegalOpr)
1058 , _code(lir_none)
1059 , _flags(0)
1060 , _info(NULL)
1061 , _id(-1)
1062 , _fpu_pop_count(0)
1063 , _source(NULL) {}
1064
1065 LIR_Op(LIR_Code code, LIR_Opr result, CodeEmitInfo* info)
1066 :
1067 #ifdef ASSERT
1068 _file(NULL)
1069 , _line(0),
1070 #endif
1071 _result(result)
1072 , _code(code)
1073 , _flags(0)
1074 , _info(info)
1075 , _id(-1)
1076 , _fpu_pop_count(0)
1077 , _source(NULL) {}
1078
1079 CodeEmitInfo* info() const { return _info; }
1080 LIR_Code code() const { return (LIR_Code)_code; }
1081 LIR_Opr result_opr() const { return _result; }
1082 void set_result_opr(LIR_Opr opr) { _result = opr; }
1083
1084 #ifdef ASSERT
1085 void set_file_and_line(const char * file, int line) {
1086 _file = file;
1087 _line = line;
1088 }
1089 #endif
1090
1091 virtual const char * name() const PRODUCT_RETURN0;
1092 virtual void visit(LIR_OpVisitState* state);
1093
1094 int id() const { return _id; }
1095 void set_id(int id) { _id = id; }
1096
1097 // FPU stack simulation helpers -- only used on Intel
1098 void set_fpu_pop_count(int count) { assert(count >= 0 && count <= 1, "currently only 0 and 1 are valid"); _fpu_pop_count = count; }
1099 int fpu_pop_count() const { return _fpu_pop_count; }
1100 bool pop_fpu_stack() { return _fpu_pop_count > 0; }
1101
1102 Instruction* source() const { return _source; }
1103 void set_source(Instruction* ins) { _source = ins; }
1104
1105 virtual void emit_code(LIR_Assembler* masm) = 0;
1106 virtual void print_instr(outputStream* out) const = 0;
1107 virtual void print_on(outputStream* st) const PRODUCT_RETURN;
1108
1109 virtual bool is_patching() { return false; }
1110 virtual LIR_OpCall* as_OpCall() { return NULL; }
1111 virtual LIR_OpJavaCall* as_OpJavaCall() { return NULL; }
1112 virtual LIR_OpLabel* as_OpLabel() { return NULL; }
1113 virtual LIR_OpDelay* as_OpDelay() { return NULL; }
1114 virtual LIR_OpLock* as_OpLock() { return NULL; }
1115 virtual LIR_OpAllocArray* as_OpAllocArray() { return NULL; }
1116 virtual LIR_OpAllocObj* as_OpAllocObj() { return NULL; }
1117 virtual LIR_OpRoundFP* as_OpRoundFP() { return NULL; }
1118 virtual LIR_OpBranch* as_OpBranch() { return NULL; }
1119 virtual LIR_OpRTCall* as_OpRTCall() { return NULL; }
1120 virtual LIR_OpConvert* as_OpConvert() { return NULL; }
1121 virtual LIR_Op0* as_Op0() { return NULL; }
1122 virtual LIR_Op1* as_Op1() { return NULL; }
1123 virtual LIR_Op2* as_Op2() { return NULL; }
1124 virtual LIR_Op3* as_Op3() { return NULL; }
1125 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return NULL; }
1126 virtual LIR_OpUpdateCRC32* as_OpUpdateCRC32() { return NULL; }
1127 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return NULL; }
1128 virtual LIR_OpCompareAndSwap* as_OpCompareAndSwap() { return NULL; }
1129 virtual LIR_OpProfileCall* as_OpProfileCall() { return NULL; }
1130 virtual LIR_OpProfileType* as_OpProfileType() { return NULL; }
1131 #ifdef ASSERT
1132 virtual LIR_OpAssert* as_OpAssert() { return NULL; }
1133 #endif
1134
1135 virtual void verify() const {}
1136 };
1137
1138 // for calls
1139 class LIR_OpCall: public LIR_Op {
1140 friend class LIR_OpVisitState;
1141
1142 protected:
1143 address _addr;
1144 LIR_OprList* _arguments;
1145 protected:
1146 LIR_OpCall(LIR_Code code, address addr, LIR_Opr result,
1147 LIR_OprList* arguments, CodeEmitInfo* info = NULL)
1148 : LIR_Op(code, result, info)
1149 , _addr(addr)
1150 , _arguments(arguments) {}
1151
1152 public:
1153 address addr() const { return _addr; }
1154 const LIR_OprList* arguments() const { return _arguments; }
1155 virtual LIR_OpCall* as_OpCall() { return this; }
1156 };
1157
1158
1159 // --------------------------------------------------
1160 // LIR_OpJavaCall
1161 // --------------------------------------------------
1162 class LIR_OpJavaCall: public LIR_OpCall {
1163 friend class LIR_OpVisitState;
1164
1165 private:
1166 ciMethod* _method;
1167 LIR_Opr _receiver;
1168 LIR_Opr _method_handle_invoke_SP_save_opr; // Used in LIR_OpVisitState::visit to store the reference to FrameMap::method_handle_invoke_SP_save_opr.
1169
1170 public:
1171 LIR_OpJavaCall(LIR_Code code, ciMethod* method,
1172 LIR_Opr receiver, LIR_Opr result,
1173 address addr, LIR_OprList* arguments,
1174 CodeEmitInfo* info)
1175 : LIR_OpCall(code, addr, result, arguments, info)
1176 , _method(method)
1177 , _receiver(receiver)
1178 , _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr)
1179 { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); }
1180
1181 LIR_OpJavaCall(LIR_Code code, ciMethod* method,
1182 LIR_Opr receiver, LIR_Opr result, intptr_t vtable_offset,
1183 LIR_OprList* arguments, CodeEmitInfo* info)
1184 : LIR_OpCall(code, (address)vtable_offset, result, arguments, info)
1185 , _method(method)
1186 , _receiver(receiver)
1187 , _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr)
1188 { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); }
1189
1190 LIR_Opr receiver() const { return _receiver; }
1191 ciMethod* method() const { return _method; }
1192
1193 // JSR 292 support.
1194 bool is_invokedynamic() const { return code() == lir_dynamic_call; }
1195 bool is_method_handle_invoke() const {
1196 return method()->is_compiled_lambda_form() || // Java-generated lambda form
1197 method()->is_method_handle_intrinsic(); // JVM-generated MH intrinsic
1198 }
1199
1200 intptr_t vtable_offset() const {
1201 assert(_code == lir_virtual_call, "only have vtable for real vcall");
1202 return (intptr_t) addr();
1203 }
1204
1205 virtual void emit_code(LIR_Assembler* masm);
1206 virtual LIR_OpJavaCall* as_OpJavaCall() { return this; }
1207 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1208 };
1209
1210 // --------------------------------------------------
1211 // LIR_OpLabel
1212 // --------------------------------------------------
1213 // Location where a branch can continue
1214 class LIR_OpLabel: public LIR_Op {
1215 friend class LIR_OpVisitState;
1216
1217 private:
1218 Label* _label;
1219 public:
1220 LIR_OpLabel(Label* lbl)
1221 : LIR_Op(lir_label, LIR_OprFact::illegalOpr, NULL)
1222 , _label(lbl) {}
1223 Label* label() const { return _label; }
1224
1225 virtual void emit_code(LIR_Assembler* masm);
1226 virtual LIR_OpLabel* as_OpLabel() { return this; }
1227 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1228 };
1229
1230 // LIR_OpArrayCopy
1231 class LIR_OpArrayCopy: public LIR_Op {
1232 friend class LIR_OpVisitState;
1233
1234 private:
1235 ArrayCopyStub* _stub;
1236 LIR_Opr _src;
1237 LIR_Opr _src_pos;
1238 LIR_Opr _dst;
1239 LIR_Opr _dst_pos;
1240 LIR_Opr _length;
1241 LIR_Opr _tmp;
1242 ciArrayKlass* _expected_type;
1243 int _flags;
1244
1245 public:
1246 enum Flags {
1247 src_null_check = 1 << 0,
1248 dst_null_check = 1 << 1,
1249 src_pos_positive_check = 1 << 2,
1250 dst_pos_positive_check = 1 << 3,
1251 length_positive_check = 1 << 4,
1252 src_range_check = 1 << 5,
1253 dst_range_check = 1 << 6,
1254 type_check = 1 << 7,
1255 overlapping = 1 << 8,
1256 unaligned = 1 << 9,
1257 src_objarray = 1 << 10,
1258 dst_objarray = 1 << 11,
1259 all_flags = (1 << 12) - 1
1260 };
1261
1262 LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length, LIR_Opr tmp,
1263 ciArrayKlass* expected_type, int flags, CodeEmitInfo* info);
1264
1265 LIR_Opr src() const { return _src; }
1266 LIR_Opr src_pos() const { return _src_pos; }
1267 LIR_Opr dst() const { return _dst; }
1268 LIR_Opr dst_pos() const { return _dst_pos; }
1269 LIR_Opr length() const { return _length; }
1270 LIR_Opr tmp() const { return _tmp; }
1271 int flags() const { return _flags; }
1272 ciArrayKlass* expected_type() const { return _expected_type; }
1273 ArrayCopyStub* stub() const { return _stub; }
1274
1275 virtual void emit_code(LIR_Assembler* masm);
1276 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return this; }
1277 void print_instr(outputStream* out) const PRODUCT_RETURN;
1278 };
1279
1280 // LIR_OpUpdateCRC32
1281 class LIR_OpUpdateCRC32: public LIR_Op {
1282 friend class LIR_OpVisitState;
1283
1284 private:
1285 LIR_Opr _crc;
1286 LIR_Opr _val;
1287
1288 public:
1289
1290 LIR_OpUpdateCRC32(LIR_Opr crc, LIR_Opr val, LIR_Opr res);
1291
1292 LIR_Opr crc() const { return _crc; }
1293 LIR_Opr val() const { return _val; }
1294
1295 virtual void emit_code(LIR_Assembler* masm);
1296 virtual LIR_OpUpdateCRC32* as_OpUpdateCRC32() { return this; }
1297 void print_instr(outputStream* out) const PRODUCT_RETURN;
1298 };
1299
1300 // --------------------------------------------------
1301 // LIR_Op0
1302 // --------------------------------------------------
1303 class LIR_Op0: public LIR_Op {
1304 friend class LIR_OpVisitState;
1305
1306 public:
1307 LIR_Op0(LIR_Code code)
1308 : LIR_Op(code, LIR_OprFact::illegalOpr, NULL) { assert(is_in_range(code, begin_op0, end_op0), "code check"); }
1309 LIR_Op0(LIR_Code code, LIR_Opr result, CodeEmitInfo* info = NULL)
1310 : LIR_Op(code, result, info) { assert(is_in_range(code, begin_op0, end_op0), "code check"); }
1311
1312 virtual void emit_code(LIR_Assembler* masm);
1313 virtual LIR_Op0* as_Op0() { return this; }
1314 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1315 };
1316
1317
1318 // --------------------------------------------------
1319 // LIR_Op1
1320 // --------------------------------------------------
1321
1322 class LIR_Op1: public LIR_Op {
1323 friend class LIR_OpVisitState;
1324
1325 protected:
1326 LIR_Opr _opr; // input operand
1327 BasicType _type; // Operand types
1328 LIR_PatchCode _patch; // only required with patchin (NEEDS_CLEANUP: do we want a special instruction for patching?)
1329
1330 static void print_patch_code(outputStream* out, LIR_PatchCode code);
1331
1332 void set_kind(LIR_MoveKind kind) {
1333 assert(code() == lir_move, "must be");
1334 _flags = kind;
1335 }
1336
1337 public:
1338 LIR_Op1(LIR_Code code, LIR_Opr opr, LIR_Opr result = LIR_OprFact::illegalOpr, BasicType type = T_ILLEGAL, LIR_PatchCode patch = lir_patch_none, CodeEmitInfo* info = NULL)
1339 : LIR_Op(code, result, info)
1340 , _opr(opr)
1341 , _type(type)
1342 , _patch(patch) { assert(is_in_range(code, begin_op1, end_op1), "code check"); }
1343
1344 LIR_Op1(LIR_Code code, LIR_Opr opr, LIR_Opr result, BasicType type, LIR_PatchCode patch, CodeEmitInfo* info, LIR_MoveKind kind)
1345 : LIR_Op(code, result, info)
1346 , _opr(opr)
1347 , _type(type)
1348 , _patch(patch) {
1349 assert(code == lir_move, "must be");
1350 set_kind(kind);
1351 }
1352
1353 LIR_Op1(LIR_Code code, LIR_Opr opr, CodeEmitInfo* info)
1354 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1355 , _opr(opr)
1356 , _type(T_ILLEGAL)
1357 , _patch(lir_patch_none) { assert(is_in_range(code, begin_op1, end_op1), "code check"); }
1358
1359 LIR_Opr in_opr() const { return _opr; }
1360 LIR_PatchCode patch_code() const { return _patch; }
1361 BasicType type() const { return _type; }
1362
1363 LIR_MoveKind move_kind() const {
1364 assert(code() == lir_move, "must be");
1365 return (LIR_MoveKind)_flags;
1366 }
1367
1368 virtual bool is_patching() { return _patch != lir_patch_none; }
1369 virtual void emit_code(LIR_Assembler* masm);
1370 virtual LIR_Op1* as_Op1() { return this; }
1371 virtual const char * name() const PRODUCT_RETURN0;
1372
1373 void set_in_opr(LIR_Opr opr) { _opr = opr; }
1374
1375 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1376 virtual void verify() const;
1377 };
1378
1379
1380 // for runtime calls
1381 class LIR_OpRTCall: public LIR_OpCall {
1382 friend class LIR_OpVisitState;
1383
1384 private:
1385 LIR_Opr _tmp;
1386 public:
1387 LIR_OpRTCall(address addr, LIR_Opr tmp,
1388 LIR_Opr result, LIR_OprList* arguments, CodeEmitInfo* info = NULL)
1389 : LIR_OpCall(lir_rtcall, addr, result, arguments, info)
1390 , _tmp(tmp) {}
1391
1392 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1393 virtual void emit_code(LIR_Assembler* masm);
1394 virtual LIR_OpRTCall* as_OpRTCall() { return this; }
1395
1396 LIR_Opr tmp() const { return _tmp; }
1397
1398 virtual void verify() const;
1399 };
1400
1401
1402 class LIR_OpBranch: public LIR_Op {
1403 friend class LIR_OpVisitState;
1404
1405 private:
1406 LIR_Condition _cond;
1407 BasicType _type;
1408 Label* _label;
1409 BlockBegin* _block; // if this is a branch to a block, this is the block
1410 BlockBegin* _ublock; // if this is a float-branch, this is the unorderd block
1411 CodeStub* _stub; // if this is a branch to a stub, this is the stub
1412
1413 public:
1414 LIR_OpBranch(LIR_Condition cond, BasicType type, Label* lbl)
1415 : LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*) NULL)
1416 , _cond(cond)
1417 , _type(type)
1418 , _label(lbl)
1419 , _block(NULL)
1420 , _ublock(NULL)
1421 , _stub(NULL) { }
1422
1423 LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block);
1424 LIR_OpBranch(LIR_Condition cond, BasicType type, CodeStub* stub);
1425
1426 // for unordered comparisons
1427 LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* ublock);
1428
1429 LIR_Condition cond() const { return _cond; }
1430 BasicType type() const { return _type; }
1431 Label* label() const { return _label; }
1432 BlockBegin* block() const { return _block; }
1433 BlockBegin* ublock() const { return _ublock; }
1434 CodeStub* stub() const { return _stub; }
1435
1436 void change_block(BlockBegin* b);
1437 void change_ublock(BlockBegin* b);
1438 void negate_cond();
1439
1440 virtual void emit_code(LIR_Assembler* masm);
1441 virtual LIR_OpBranch* as_OpBranch() { return this; }
1442 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1443 };
1444
1445
1446 class ConversionStub;
1447
1448 class LIR_OpConvert: public LIR_Op1 {
1449 friend class LIR_OpVisitState;
1450
1451 private:
1452 Bytecodes::Code _bytecode;
1453 ConversionStub* _stub;
1454
1455 public:
1456 LIR_OpConvert(Bytecodes::Code code, LIR_Opr opr, LIR_Opr result, ConversionStub* stub)
1457 : LIR_Op1(lir_convert, opr, result)
1458 , _bytecode(code)
1459 , _stub(stub) {}
1460
1461 Bytecodes::Code bytecode() const { return _bytecode; }
1462 ConversionStub* stub() const { return _stub; }
1463
1464 virtual void emit_code(LIR_Assembler* masm);
1465 virtual LIR_OpConvert* as_OpConvert() { return this; }
1466 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1467
1468 static void print_bytecode(outputStream* out, Bytecodes::Code code) PRODUCT_RETURN;
1469 };
1470
1471
1472 // LIR_OpAllocObj
1473 class LIR_OpAllocObj : public LIR_Op1 {
1474 friend class LIR_OpVisitState;
1475
1476 private:
1477 LIR_Opr _tmp1;
1478 LIR_Opr _tmp2;
1479 LIR_Opr _tmp3;
1480 LIR_Opr _tmp4;
1481 int _hdr_size;
1482 int _obj_size;
1483 CodeStub* _stub;
1484 bool _init_check;
1485
1486 public:
1487 LIR_OpAllocObj(LIR_Opr klass, LIR_Opr result,
1488 LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1489 int hdr_size, int obj_size, bool init_check, CodeStub* stub)
1490 : LIR_Op1(lir_alloc_object, klass, result)
1491 , _tmp1(t1)
1492 , _tmp2(t2)
1493 , _tmp3(t3)
1494 , _tmp4(t4)
1495 , _hdr_size(hdr_size)
1496 , _obj_size(obj_size)
1497 , _stub(stub)
1498 , _init_check(init_check) { }
1499
1500 LIR_Opr klass() const { return in_opr(); }
1501 LIR_Opr obj() const { return result_opr(); }
1502 LIR_Opr tmp1() const { return _tmp1; }
1503 LIR_Opr tmp2() const { return _tmp2; }
1504 LIR_Opr tmp3() const { return _tmp3; }
1505 LIR_Opr tmp4() const { return _tmp4; }
1506 int header_size() const { return _hdr_size; }
1507 int object_size() const { return _obj_size; }
1508 bool init_check() const { return _init_check; }
1509 CodeStub* stub() const { return _stub; }
1510
1511 virtual void emit_code(LIR_Assembler* masm);
1512 virtual LIR_OpAllocObj * as_OpAllocObj () { return this; }
1513 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1514 };
1515
1516
1517 // LIR_OpRoundFP
1518 class LIR_OpRoundFP : public LIR_Op1 {
1519 friend class LIR_OpVisitState;
1520
1521 private:
1522 LIR_Opr _tmp;
1523
1524 public:
1525 LIR_OpRoundFP(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result)
1526 : LIR_Op1(lir_roundfp, reg, result)
1527 , _tmp(stack_loc_temp) {}
1528
1529 LIR_Opr tmp() const { return _tmp; }
1530 virtual LIR_OpRoundFP* as_OpRoundFP() { return this; }
1531 void print_instr(outputStream* out) const PRODUCT_RETURN;
1532 };
1533
1534 // LIR_OpTypeCheck
1535 class LIR_OpTypeCheck: public LIR_Op {
1536 friend class LIR_OpVisitState;
1537
1538 private:
1539 LIR_Opr _object;
1540 LIR_Opr _array;
1541 ciKlass* _klass;
1542 LIR_Opr _tmp1;
1543 LIR_Opr _tmp2;
1544 LIR_Opr _tmp3;
1545 bool _fast_check;
1546 CodeEmitInfo* _info_for_patch;
1547 CodeEmitInfo* _info_for_exception;
1548 CodeStub* _stub;
1549 ciMethod* _profiled_method;
1550 int _profiled_bci;
1551 bool _should_profile;
1552
1553 public:
1554 LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
1555 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1556 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub);
1557 LIR_OpTypeCheck(LIR_Code code, LIR_Opr object, LIR_Opr array,
1558 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception);
1559
1560 LIR_Opr object() const { return _object; }
1561 LIR_Opr array() const { assert(code() == lir_store_check, "not valid"); return _array; }
1562 LIR_Opr tmp1() const { return _tmp1; }
1563 LIR_Opr tmp2() const { return _tmp2; }
1564 LIR_Opr tmp3() const { return _tmp3; }
1565 ciKlass* klass() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _klass; }
1566 bool fast_check() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _fast_check; }
1567 CodeEmitInfo* info_for_patch() const { return _info_for_patch; }
1568 CodeEmitInfo* info_for_exception() const { return _info_for_exception; }
1569 CodeStub* stub() const { return _stub; }
1570
1571 // MethodData* profiling
1572 void set_profiled_method(ciMethod *method) { _profiled_method = method; }
1573 void set_profiled_bci(int bci) { _profiled_bci = bci; }
1574 void set_should_profile(bool b) { _should_profile = b; }
1575 ciMethod* profiled_method() const { return _profiled_method; }
1576 int profiled_bci() const { return _profiled_bci; }
1577 bool should_profile() const { return _should_profile; }
1578
1579 virtual bool is_patching() { return _info_for_patch != NULL; }
1580 virtual void emit_code(LIR_Assembler* masm);
1581 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return this; }
1582 void print_instr(outputStream* out) const PRODUCT_RETURN;
1583 };
1584
1585 // LIR_Op2
1586 class LIR_Op2: public LIR_Op {
1587 friend class LIR_OpVisitState;
1588
1589 int _fpu_stack_size; // for sin/cos implementation on Intel
1590
1591 protected:
1592 LIR_Opr _opr1;
1593 LIR_Opr _opr2;
1594 BasicType _type;
1595 LIR_Opr _tmp1;
1596 LIR_Opr _tmp2;
1597 LIR_Opr _tmp3;
1598 LIR_Opr _tmp4;
1599 LIR_Opr _tmp5;
1600 LIR_Condition _condition;
1601
1602 void verify() const;
1603
1604 public:
1605 LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, CodeEmitInfo* info = NULL)
1606 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1607 , _fpu_stack_size(0)
1608 , _opr1(opr1)
1609 , _opr2(opr2)
1610 , _type(T_ILLEGAL)
1611 , _tmp1(LIR_OprFact::illegalOpr)
1612 , _tmp2(LIR_OprFact::illegalOpr)
1613 , _tmp3(LIR_OprFact::illegalOpr)
1614 , _tmp4(LIR_OprFact::illegalOpr)
1615 , _tmp5(LIR_OprFact::illegalOpr)
1616 , _condition(condition) {
1617 assert(code == lir_cmp || code == lir_assert, "code check");
1618 }
1619
1620 LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, BasicType type)
1621 : LIR_Op(code, result, NULL)
1622 , _fpu_stack_size(0)
1623 , _opr1(opr1)
1624 , _opr2(opr2)
1625 , _type(type)
1626 , _tmp1(LIR_OprFact::illegalOpr)
1627 , _tmp2(LIR_OprFact::illegalOpr)
1628 , _tmp3(LIR_OprFact::illegalOpr)
1629 , _tmp4(LIR_OprFact::illegalOpr)
1630 , _tmp5(LIR_OprFact::illegalOpr)
1631 , _condition(condition) {
1632 assert(code == lir_cmove, "code check");
1633 assert(type != T_ILLEGAL, "cmove should have type");
1634 }
1635
1636 LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result = LIR_OprFact::illegalOpr,
1637 CodeEmitInfo* info = NULL, BasicType type = T_ILLEGAL)
1638 : LIR_Op(code, result, info)
1639 , _fpu_stack_size(0)
1640 , _opr1(opr1)
1641 , _opr2(opr2)
1642 , _type(type)
1643 , _tmp1(LIR_OprFact::illegalOpr)
1644 , _tmp2(LIR_OprFact::illegalOpr)
1645 , _tmp3(LIR_OprFact::illegalOpr)
1646 , _tmp4(LIR_OprFact::illegalOpr)
1647 , _tmp5(LIR_OprFact::illegalOpr)
1648 , _condition(lir_cond_unknown) {
1649 assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check");
1650 }
1651
1652 LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, LIR_Opr tmp1, LIR_Opr tmp2 = LIR_OprFact::illegalOpr,
1653 LIR_Opr tmp3 = LIR_OprFact::illegalOpr, LIR_Opr tmp4 = LIR_OprFact::illegalOpr, LIR_Opr tmp5 = LIR_OprFact::illegalOpr)
1654 : LIR_Op(code, result, NULL)
1655 , _fpu_stack_size(0)
1656 , _opr1(opr1)
1657 , _opr2(opr2)
1658 , _type(T_ILLEGAL)
1659 , _tmp1(tmp1)
1660 , _tmp2(tmp2)
1661 , _tmp3(tmp3)
1662 , _tmp4(tmp4)
1663 , _tmp5(tmp5)
1664 , _condition(lir_cond_unknown) {
1665 assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check");
1666 }
1667
1668 LIR_Opr in_opr1() const { return _opr1; }
1669 LIR_Opr in_opr2() const { return _opr2; }
1670 BasicType type() const { return _type; }
1671 LIR_Opr tmp1_opr() const { return _tmp1; }
1672 LIR_Opr tmp2_opr() const { return _tmp2; }
1673 LIR_Opr tmp3_opr() const { return _tmp3; }
1674 LIR_Opr tmp4_opr() const { return _tmp4; }
1675 LIR_Opr tmp5_opr() const { return _tmp5; }
1676 LIR_Condition condition() const {
1677 assert(code() == lir_cmp || code() == lir_cmove || code() == lir_assert, "only valid for cmp and cmove and assert"); return _condition;
1678 }
1679 void set_condition(LIR_Condition condition) {
1680 assert(code() == lir_cmp || code() == lir_cmove, "only valid for cmp and cmove"); _condition = condition;
1681 }
1682
1683 void set_fpu_stack_size(int size) { _fpu_stack_size = size; }
1684 int fpu_stack_size() const { return _fpu_stack_size; }
1685
1686 void set_in_opr1(LIR_Opr opr) { _opr1 = opr; }
1687 void set_in_opr2(LIR_Opr opr) { _opr2 = opr; }
1688
1689 virtual void emit_code(LIR_Assembler* masm);
1690 virtual LIR_Op2* as_Op2() { return this; }
1691 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1692 };
1693
1694 class LIR_OpAllocArray : public LIR_Op {
1695 friend class LIR_OpVisitState;
1696
1697 private:
1698 LIR_Opr _klass;
1699 LIR_Opr _len;
1700 LIR_Opr _tmp1;
1701 LIR_Opr _tmp2;
1702 LIR_Opr _tmp3;
1703 LIR_Opr _tmp4;
1704 BasicType _type;
1705 CodeStub* _stub;
1706
1707 public:
1708 LIR_OpAllocArray(LIR_Opr klass, LIR_Opr len, LIR_Opr result, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4, BasicType type, CodeStub* stub)
1709 : LIR_Op(lir_alloc_array, result, NULL)
1710 , _klass(klass)
1711 , _len(len)
1712 , _tmp1(t1)
1713 , _tmp2(t2)
1714 , _tmp3(t3)
1715 , _tmp4(t4)
1716 , _type(type)
1717 , _stub(stub) {}
1718
1719 LIR_Opr klass() const { return _klass; }
1720 LIR_Opr len() const { return _len; }
1721 LIR_Opr obj() const { return result_opr(); }
1722 LIR_Opr tmp1() const { return _tmp1; }
1723 LIR_Opr tmp2() const { return _tmp2; }
1724 LIR_Opr tmp3() const { return _tmp3; }
1725 LIR_Opr tmp4() const { return _tmp4; }
1726 BasicType type() const { return _type; }
1727 CodeStub* stub() const { return _stub; }
1728
1729 virtual void emit_code(LIR_Assembler* masm);
1730 virtual LIR_OpAllocArray * as_OpAllocArray () { return this; }
1731 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1732 };
1733
1734
1735 class LIR_Op3: public LIR_Op {
1736 friend class LIR_OpVisitState;
1737
1738 private:
1739 LIR_Opr _opr1;
1740 LIR_Opr _opr2;
1741 LIR_Opr _opr3;
1742 public:
1743 LIR_Op3(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr opr3, LIR_Opr result, CodeEmitInfo* info = NULL)
1744 : LIR_Op(code, result, info)
1745 , _opr1(opr1)
1746 , _opr2(opr2)
1747 , _opr3(opr3) { assert(is_in_range(code, begin_op3, end_op3), "code check"); }
1748 LIR_Opr in_opr1() const { return _opr1; }
1749 LIR_Opr in_opr2() const { return _opr2; }
1750 LIR_Opr in_opr3() const { return _opr3; }
1751
1752 virtual void emit_code(LIR_Assembler* masm);
1753 virtual LIR_Op3* as_Op3() { return this; }
1754 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1755 };
1756
1757
1758 //--------------------------------
1759 class LabelObj: public CompilationResourceObj {
1760 private:
1761 Label _label;
1762 public:
1763 LabelObj() {}
1764 Label* label() { return &_label; }
1765 };
1766
1767
1768 class LIR_OpLock: public LIR_Op {
1769 friend class LIR_OpVisitState;
1770
1771 private:
1772 LIR_Opr _hdr;
1773 LIR_Opr _obj;
1774 LIR_Opr _lock;
1775 LIR_Opr _scratch;
1776 CodeStub* _stub;
1777 public:
1778 LIR_OpLock(LIR_Code code, LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info)
1779 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1780 , _hdr(hdr)
1781 , _obj(obj)
1782 , _lock(lock)
1783 , _scratch(scratch)
1784 , _stub(stub) {}
1785
1786 LIR_Opr hdr_opr() const { return _hdr; }
1787 LIR_Opr obj_opr() const { return _obj; }
1788 LIR_Opr lock_opr() const { return _lock; }
1789 LIR_Opr scratch_opr() const { return _scratch; }
1790 CodeStub* stub() const { return _stub; }
1791
1792 virtual void emit_code(LIR_Assembler* masm);
1793 virtual LIR_OpLock* as_OpLock() { return this; }
1794 void print_instr(outputStream* out) const PRODUCT_RETURN;
1795 };
1796
1797
1798 class LIR_OpDelay: public LIR_Op {
1799 friend class LIR_OpVisitState;
1800
1801 private:
1802 LIR_Op* _op;
1803
1804 public:
1805 LIR_OpDelay(LIR_Op* op, CodeEmitInfo* info):
1806 LIR_Op(lir_delay_slot, LIR_OprFact::illegalOpr, info),
1807 _op(op) {
1808 assert(op->code() == lir_nop || LIRFillDelaySlots, "should be filling with nops");
1809 }
1810 virtual void emit_code(LIR_Assembler* masm);
1811 virtual LIR_OpDelay* as_OpDelay() { return this; }
1812 void print_instr(outputStream* out) const PRODUCT_RETURN;
1813 LIR_Op* delay_op() const { return _op; }
1814 CodeEmitInfo* call_info() const { return info(); }
1815 };
1816
1817 #ifdef ASSERT
1818 // LIR_OpAssert
1819 class LIR_OpAssert : public LIR_Op2 {
1820 friend class LIR_OpVisitState;
1821
1822 private:
1823 const char* _msg;
1824 bool _halt;
1825
1826 public:
1827 LIR_OpAssert(LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, const char* msg, bool halt)
1828 : LIR_Op2(lir_assert, condition, opr1, opr2)
1829 , _msg(msg)
1830 , _halt(halt) {
1831 }
1832
1833 const char* msg() const { return _msg; }
1834 bool halt() const { return _halt; }
1835
1836 virtual void emit_code(LIR_Assembler* masm);
1837 virtual LIR_OpAssert* as_OpAssert() { return this; }
1838 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1839 };
1840 #endif
1841
1842 // LIR_OpCompareAndSwap
1843 class LIR_OpCompareAndSwap : public LIR_Op {
1844 friend class LIR_OpVisitState;
1845
1846 private:
1847 LIR_Opr _addr;
1848 LIR_Opr _cmp_value;
1849 LIR_Opr _new_value;
1850 LIR_Opr _tmp1;
1851 LIR_Opr _tmp2;
1852
1853 public:
1854 LIR_OpCompareAndSwap(LIR_Code code, LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1855 LIR_Opr t1, LIR_Opr t2, LIR_Opr result)
1856 : LIR_Op(code, result, NULL) // no result, no info
1857 , _addr(addr)
1858 , _cmp_value(cmp_value)
1859 , _new_value(new_value)
1860 , _tmp1(t1)
1861 , _tmp2(t2) { }
1862
1863 LIR_Opr addr() const { return _addr; }
1864 LIR_Opr cmp_value() const { return _cmp_value; }
1865 LIR_Opr new_value() const { return _new_value; }
1866 LIR_Opr tmp1() const { return _tmp1; }
1867 LIR_Opr tmp2() const { return _tmp2; }
1868
1869 virtual void emit_code(LIR_Assembler* masm);
1870 virtual LIR_OpCompareAndSwap * as_OpCompareAndSwap () { return this; }
1871 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1872 };
1873
1874 // LIR_OpProfileCall
1875 class LIR_OpProfileCall : public LIR_Op {
1876 friend class LIR_OpVisitState;
1877
1878 private:
1879 ciMethod* _profiled_method;
1880 int _profiled_bci;
1881 ciMethod* _profiled_callee;
1882 LIR_Opr _mdo;
1883 LIR_Opr _recv;
1884 LIR_Opr _tmp1;
1885 ciKlass* _known_holder;
1886
1887 public:
1888 // Destroys recv
1889 LIR_OpProfileCall(ciMethod* profiled_method, int profiled_bci, ciMethod* profiled_callee, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* known_holder)
1890 : LIR_Op(lir_profile_call, LIR_OprFact::illegalOpr, NULL) // no result, no info
1891 , _profiled_method(profiled_method)
1892 , _profiled_bci(profiled_bci)
1893 , _profiled_callee(profiled_callee)
1894 , _mdo(mdo)
1895 , _recv(recv)
1896 , _tmp1(t1)
1897 , _known_holder(known_holder) { }
1898
1899 ciMethod* profiled_method() const { return _profiled_method; }
1900 int profiled_bci() const { return _profiled_bci; }
1901 ciMethod* profiled_callee() const { return _profiled_callee; }
1902 LIR_Opr mdo() const { return _mdo; }
1903 LIR_Opr recv() const { return _recv; }
1904 LIR_Opr tmp1() const { return _tmp1; }
1905 ciKlass* known_holder() const { return _known_holder; }
1906
1907 virtual void emit_code(LIR_Assembler* masm);
1908 virtual LIR_OpProfileCall* as_OpProfileCall() { return this; }
1909 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1910 bool should_profile_receiver_type() const {
1911 bool callee_is_static = _profiled_callee->is_loaded() && _profiled_callee->is_static();
1912 Bytecodes::Code bc = _profiled_method->java_code_at_bci(_profiled_bci);
1913 bool call_is_virtual = (bc == Bytecodes::_invokevirtual && !_profiled_callee->can_be_statically_bound()) || bc == Bytecodes::_invokeinterface;
1914 return C1ProfileVirtualCalls && call_is_virtual && !callee_is_static;
1915 }
1916 };
1917
1918 // LIR_OpProfileType
1919 class LIR_OpProfileType : public LIR_Op {
1920 friend class LIR_OpVisitState;
1921
1922 private:
1923 LIR_Opr _mdp;
1924 LIR_Opr _obj;
1925 LIR_Opr _tmp;
1926 ciKlass* _exact_klass; // non NULL if we know the klass statically (no need to load it from _obj)
1927 intptr_t _current_klass; // what the profiling currently reports
1928 bool _not_null; // true if we know statically that _obj cannot be null
1929 bool _no_conflict; // true if we're profling parameters, _exact_klass is not NULL and we know
1930 // _exact_klass it the only possible type for this parameter in any context.
1931
1932 public:
1933 // Destroys recv
1934 LIR_OpProfileType(LIR_Opr mdp, LIR_Opr obj, ciKlass* exact_klass, intptr_t current_klass, LIR_Opr tmp, bool not_null, bool no_conflict)
1935 : LIR_Op(lir_profile_type, LIR_OprFact::illegalOpr, NULL) // no result, no info
1936 , _mdp(mdp)
1937 , _obj(obj)
1938 , _tmp(tmp)
1939 , _exact_klass(exact_klass)
1940 , _current_klass(current_klass)
1941 , _not_null(not_null)
1942 , _no_conflict(no_conflict) { }
1943
1944 LIR_Opr mdp() const { return _mdp; }
1945 LIR_Opr obj() const { return _obj; }
1946 LIR_Opr tmp() const { return _tmp; }
1947 ciKlass* exact_klass() const { return _exact_klass; }
1948 intptr_t current_klass() const { return _current_klass; }
1949 bool not_null() const { return _not_null; }
1950 bool no_conflict() const { return _no_conflict; }
1951
1952 virtual void emit_code(LIR_Assembler* masm);
1953 virtual LIR_OpProfileType* as_OpProfileType() { return this; }
1954 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1955 };
1956
1957 class LIR_InsertionBuffer;
1958
1959 //--------------------------------LIR_List---------------------------------------------------
1960 // Maintains a list of LIR instructions (one instance of LIR_List per basic block)
1961 // The LIR instructions are appended by the LIR_List class itself;
1962 //
1963 // Notes:
1964 // - all offsets are(should be) in bytes
1965 // - local positions are specified with an offset, with offset 0 being local 0
1966
1967 class LIR_List: public CompilationResourceObj {
1968 private:
1969 LIR_OpList _operations;
1970
1971 Compilation* _compilation;
1972 #ifndef PRODUCT
1973 BlockBegin* _block;
1974 #endif
1975 #ifdef ASSERT
1976 const char * _file;
1977 int _line;
1978 #endif
1979
1980 public:
1981 void append(LIR_Op* op) {
1982 if (op->source() == NULL)
1983 op->set_source(_compilation->current_instruction());
1984 #ifndef PRODUCT
1985 if (PrintIRWithLIR) {
1986 _compilation->maybe_print_current_instruction();
1987 op->print(); tty->cr();
1988 }
1989 #endif // PRODUCT
1990
1991 _operations.append(op);
1992
1993 #ifdef ASSERT
1994 op->verify();
1995 op->set_file_and_line(_file, _line);
1996 _file = NULL;
1997 _line = 0;
1998 #endif
1999 }
2000
2001 LIR_List(Compilation* compilation, BlockBegin* block = NULL);
2002
2003 #ifdef ASSERT
2004 void set_file_and_line(const char * file, int line);
2005 #endif
2006
2007 //---------- accessors ---------------
2008 LIR_OpList* instructions_list() { return &_operations; }
2009 int length() const { return _operations.length(); }
2010 LIR_Op* at(int i) const { return _operations.at(i); }
2011
2012 NOT_PRODUCT(BlockBegin* block() const { return _block; });
2013
2014 // insert LIR_Ops in buffer to right places in LIR_List
2015 void append(LIR_InsertionBuffer* buffer);
2016
2017 //---------- mutators ---------------
2018 void insert_before(int i, LIR_List* op_list) { _operations.insert_before(i, op_list->instructions_list()); }
2019 void insert_before(int i, LIR_Op* op) { _operations.insert_before(i, op); }
2020 void remove_at(int i) { _operations.remove_at(i); }
2021
2022 //---------- printing -------------
2023 void print_instructions() PRODUCT_RETURN;
2024
2025
2026 //---------- instructions -------------
2027 void call_opt_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2028 address dest, LIR_OprList* arguments,
2029 CodeEmitInfo* info) {
2030 append(new LIR_OpJavaCall(lir_optvirtual_call, method, receiver, result, dest, arguments, info));
2031 }
2032 void call_static(ciMethod* method, LIR_Opr result,
2033 address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
2034 append(new LIR_OpJavaCall(lir_static_call, method, LIR_OprFact::illegalOpr, result, dest, arguments, info));
2035 }
2036 void call_icvirtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2037 address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
2038 append(new LIR_OpJavaCall(lir_icvirtual_call, method, receiver, result, dest, arguments, info));
2039 }
2040 void call_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2041 intptr_t vtable_offset, LIR_OprList* arguments, CodeEmitInfo* info) {
2042 append(new LIR_OpJavaCall(lir_virtual_call, method, receiver, result, vtable_offset, arguments, info));
2043 }
2044 void call_dynamic(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2045 address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
2046 append(new LIR_OpJavaCall(lir_dynamic_call, method, receiver, result, dest, arguments, info));
2047 }
2048
2049 void get_thread(LIR_Opr result) { append(new LIR_Op0(lir_get_thread, result)); }
2050 void membar() { append(new LIR_Op0(lir_membar)); }
2051 void membar_acquire() { append(new LIR_Op0(lir_membar_acquire)); }
2052 void membar_release() { append(new LIR_Op0(lir_membar_release)); }
2053 void membar_loadload() { append(new LIR_Op0(lir_membar_loadload)); }
2054 void membar_storestore() { append(new LIR_Op0(lir_membar_storestore)); }
2055 void membar_loadstore() { append(new LIR_Op0(lir_membar_loadstore)); }
2056 void membar_storeload() { append(new LIR_Op0(lir_membar_storeload)); }
2057
2058 void nop() { append(new LIR_Op0(lir_nop)); }
2059
2060 void std_entry(LIR_Opr receiver) { append(new LIR_Op0(lir_std_entry, receiver)); }
2061 void osr_entry(LIR_Opr osrPointer) { append(new LIR_Op0(lir_osr_entry, osrPointer)); }
2062
2063 void on_spin_wait() { append(new LIR_Op0(lir_on_spin_wait)); }
2064
2065 void branch_destination(Label* lbl) { append(new LIR_OpLabel(lbl)); }
2066
2067 void leal(LIR_Opr from, LIR_Opr result_reg, LIR_PatchCode patch_code = lir_patch_none, CodeEmitInfo* info = NULL) { append(new LIR_Op1(lir_leal, from, result_reg, T_ILLEGAL, patch_code, info)); }
2068
2069 // result is a stack location for old backend and vreg for UseLinearScan
2070 // stack_loc_temp is an illegal register for old backend
2071 void roundfp(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result) { append(new LIR_OpRoundFP(reg, stack_loc_temp, result)); }
2072 void unaligned_move(LIR_Address* src, LIR_Opr dst) { append(new LIR_Op1(lir_move, LIR_OprFact::address(src), dst, dst->type(), lir_patch_none, NULL, lir_move_unaligned)); }
2073 void unaligned_move(LIR_Opr src, LIR_Address* dst) { append(new LIR_Op1(lir_move, src, LIR_OprFact::address(dst), src->type(), lir_patch_none, NULL, lir_move_unaligned)); }
2074 void unaligned_move(LIR_Opr src, LIR_Opr dst) { append(new LIR_Op1(lir_move, src, dst, dst->type(), lir_patch_none, NULL, lir_move_unaligned)); }
2075 void move(LIR_Opr src, LIR_Opr dst, CodeEmitInfo* info = NULL) { append(new LIR_Op1(lir_move, src, dst, dst->type(), lir_patch_none, info)); }
2076 void move(LIR_Address* src, LIR_Opr dst, CodeEmitInfo* info = NULL) { append(new LIR_Op1(lir_move, LIR_OprFact::address(src), dst, src->type(), lir_patch_none, info)); }
2077 void move(LIR_Opr src, LIR_Address* dst, CodeEmitInfo* info = NULL) { append(new LIR_Op1(lir_move, src, LIR_OprFact::address(dst), dst->type(), lir_patch_none, info)); }
2078 void move_wide(LIR_Address* src, LIR_Opr dst, CodeEmitInfo* info = NULL) {
2079 if (UseCompressedOops) {
2080 append(new LIR_Op1(lir_move, LIR_OprFact::address(src), dst, src->type(), lir_patch_none, info, lir_move_wide));
2081 } else {
2082 move(src, dst, info);
2083 }
2084 }
2085 void move_wide(LIR_Opr src, LIR_Address* dst, CodeEmitInfo* info = NULL) {
2086 if (UseCompressedOops) {
2087 append(new LIR_Op1(lir_move, src, LIR_OprFact::address(dst), dst->type(), lir_patch_none, info, lir_move_wide));
2088 } else {
2089 move(src, dst, info);
2090 }
2091 }
2092 void volatile_move(LIR_Opr src, LIR_Opr dst, BasicType type, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none) { append(new LIR_Op1(lir_move, src, dst, type, patch_code, info, lir_move_volatile)); }
2093
2094 void oop2reg (jobject o, LIR_Opr reg) { assert(reg->type() == T_OBJECT, "bad reg"); append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o), reg)); }
2095 void oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info);
2096
2097 void metadata2reg (Metadata* o, LIR_Opr reg) { assert(reg->type() == T_METADATA, "bad reg"); append(new LIR_Op1(lir_move, LIR_OprFact::metadataConst(o), reg)); }
2098 void klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info);
2099
2100 void return_op(LIR_Opr result) { append(new LIR_Op1(lir_return, result)); }
2101
2102 void safepoint(LIR_Opr tmp, CodeEmitInfo* info) { append(new LIR_Op1(lir_safepoint, tmp, info)); }
2103
2104 void convert(Bytecodes::Code code, LIR_Opr left, LIR_Opr dst, ConversionStub* stub = NULL/*, bool is_32bit = false*/) { append(new LIR_OpConvert(code, left, dst, stub)); }
2105
2106 void logical_and (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_and, left, right, dst)); }
2107 void logical_or (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_or, left, right, dst)); }
2108 void logical_xor (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_xor, left, right, dst)); }
2109
2110 void null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null = false);
2111 void throw_exception(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) {
2112 append(new LIR_Op2(lir_throw, exceptionPC, exceptionOop, LIR_OprFact::illegalOpr, info));
2113 }
2114 void unwind_exception(LIR_Opr exceptionOop) {
2115 append(new LIR_Op1(lir_unwind, exceptionOop));
2116 }
2117
2118 void push(LIR_Opr opr) { append(new LIR_Op1(lir_push, opr)); }
2119 void pop(LIR_Opr reg) { append(new LIR_Op1(lir_pop, reg)); }
2120
2121 void cmp(LIR_Condition condition, LIR_Opr left, LIR_Opr right, CodeEmitInfo* info = NULL) {
2122 append(new LIR_Op2(lir_cmp, condition, left, right, info));
2123 }
2124 void cmp(LIR_Condition condition, LIR_Opr left, int right, CodeEmitInfo* info = NULL) {
2125 cmp(condition, left, LIR_OprFact::intConst(right), info);
2126 }
2127
2128 void cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info);
2129 void cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info);
2130
2131 void cmove(LIR_Condition condition, LIR_Opr src1, LIR_Opr src2, LIR_Opr dst, BasicType type) {
2132 append(new LIR_Op2(lir_cmove, condition, src1, src2, dst, type));
2133 }
2134
2135 void cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
2136 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr);
2137 void cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
2138 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr);
2139 void cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
2140 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr);
2141
2142 void abs (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_abs , from, tmp, to)); }
2143 void negate(LIR_Opr from, LIR_Opr to, LIR_Opr tmp = LIR_OprFact::illegalOpr) { append(new LIR_Op2(lir_neg, from, tmp, to)); }
2144 void sqrt(LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_sqrt, from, tmp, to)); }
2145 void fmad(LIR_Opr from, LIR_Opr from1, LIR_Opr from2, LIR_Opr to) { append(new LIR_Op3(lir_fmad, from, from1, from2, to)); }
2146 void fmaf(LIR_Opr from, LIR_Opr from1, LIR_Opr from2, LIR_Opr to) { append(new LIR_Op3(lir_fmaf, from, from1, from2, to)); }
2147 void log10 (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_log10, from, LIR_OprFact::illegalOpr, to, tmp)); }
2148 void tan (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_Op2(lir_tan , from, tmp1, to, tmp2)); }
2149
2150 void add (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_add, left, right, res)); }
2151 void sub (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_sub, left, right, res, info)); }
2152 void mul (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_mul, left, right, res)); }
2153 void mul_strictfp (LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_mul_strictfp, left, right, res, tmp)); }
2154 void div (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_div, left, right, res, info)); }
2155 void div_strictfp (LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_div_strictfp, left, right, res, tmp)); }
2156 void rem (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_rem, left, right, res, info)); }
2157
2158 void volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2159 void volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code);
2160
2161 void load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none);
2162
2163 void store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2164 void store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2165 void store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none);
2166 void volatile_store_mem_reg(LIR_Opr src, LIR_Address* address, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2167 void volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code);
2168
2169 void idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2170 void idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2171 void irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2172 void irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2173
2174 void allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4, int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub);
2175 void allocate_array(LIR_Opr dst, LIR_Opr len, LIR_Opr t1,LIR_Opr t2, LIR_Opr t3,LIR_Opr t4, BasicType type, LIR_Opr klass, CodeStub* stub);
2176
2177 // jump is an unconditional branch
2178 void jump(BlockBegin* block) {
2179 append(new LIR_OpBranch(lir_cond_always, T_ILLEGAL, block));
2180 }
2181 void jump(CodeStub* stub) {
2182 append(new LIR_OpBranch(lir_cond_always, T_ILLEGAL, stub));
2183 }
2184 void branch(LIR_Condition cond, BasicType type, Label* lbl) { append(new LIR_OpBranch(cond, type, lbl)); }
2185 void branch(LIR_Condition cond, BasicType type, BlockBegin* block) {
2186 assert(type != T_FLOAT && type != T_DOUBLE, "no fp comparisons");
2187 append(new LIR_OpBranch(cond, type, block));
2188 }
2189 void branch(LIR_Condition cond, BasicType type, CodeStub* stub) {
2190 assert(type != T_FLOAT && type != T_DOUBLE, "no fp comparisons");
2191 append(new LIR_OpBranch(cond, type, stub));
2192 }
2193 void branch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* unordered) {
2194 assert(type == T_FLOAT || type == T_DOUBLE, "fp comparisons only");
2195 append(new LIR_OpBranch(cond, type, block, unordered));
2196 }
2197
2198 void shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
2199 void shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
2200 void unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
2201
2202 void shift_left(LIR_Opr value, int count, LIR_Opr dst) { shift_left(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2203 void shift_right(LIR_Opr value, int count, LIR_Opr dst) { shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2204 void unsigned_shift_right(LIR_Opr value, int count, LIR_Opr dst) { unsigned_shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2205
2206 void lcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_cmp_l2i, left, right, dst)); }
2207 void fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less);
2208
2209 void call_runtime_leaf(address routine, LIR_Opr tmp, LIR_Opr result, LIR_OprList* arguments) {
2210 append(new LIR_OpRTCall(routine, tmp, result, arguments));
2211 }
2212
2213 void call_runtime(address routine, LIR_Opr tmp, LIR_Opr result,
2214 LIR_OprList* arguments, CodeEmitInfo* info) {
2215 append(new LIR_OpRTCall(routine, tmp, result, arguments, info));
2216 }
2217
2218 void load_stack_address_monitor(int monitor_ix, LIR_Opr dst) { append(new LIR_Op1(lir_monaddr, LIR_OprFact::intConst(monitor_ix), dst)); }
2219 void unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub);
2220 void lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info);
2221
2222 void breakpoint() { append(new LIR_Op0(lir_breakpoint)); }
2223
2224 void arraycopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length, LIR_Opr tmp, ciArrayKlass* expected_type, int flags, CodeEmitInfo* info) { append(new LIR_OpArrayCopy(src, src_pos, dst, dst_pos, length, tmp, expected_type, flags, info)); }
2225
2226 void update_crc32(LIR_Opr crc, LIR_Opr val, LIR_Opr res) { append(new LIR_OpUpdateCRC32(crc, val, res)); }
2227
2228 void instanceof(LIR_Opr result, LIR_Opr object, ciKlass* klass, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check, CodeEmitInfo* info_for_patch, ciMethod* profiled_method, int profiled_bci);
2229 void store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci);
2230
2231 void checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
2232 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
2233 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
2234 ciMethod* profiled_method, int profiled_bci);
2235 // MethodData* profiling
2236 void profile_call(ciMethod* method, int bci, ciMethod* callee, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* cha_klass) {
2237 append(new LIR_OpProfileCall(method, bci, callee, mdo, recv, t1, cha_klass));
2238 }
2239 void profile_type(LIR_Address* mdp, LIR_Opr obj, ciKlass* exact_klass, intptr_t current_klass, LIR_Opr tmp, bool not_null, bool no_conflict) {
2240 append(new LIR_OpProfileType(LIR_OprFact::address(mdp), obj, exact_klass, current_klass, tmp, not_null, no_conflict));
2241 }
2242
2243 void xadd(LIR_Opr src, LIR_Opr add, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_xadd, src, add, res, tmp)); }
2244 void xchg(LIR_Opr src, LIR_Opr set, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_xchg, src, set, res, tmp)); }
2245 #ifdef ASSERT
2246 void lir_assert(LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, const char* msg, bool halt) { append(new LIR_OpAssert(condition, opr1, opr2, msg, halt)); }
2247 #endif
2248 };
2249
2250 void print_LIR(BlockList* blocks);
2251
2252 class LIR_InsertionBuffer : public CompilationResourceObj {
2253 private:
2254 LIR_List* _lir; // the lir list where ops of this buffer should be inserted later (NULL when uninitialized)
2255
2256 // list of insertion points. index and count are stored alternately:
2257 // _index_and_count[i * 2]: the index into lir list where "count" ops should be inserted
2258 // _index_and_count[i * 2 + 1]: the number of ops to be inserted at index
2259 intStack _index_and_count;
2260
2261 // the LIR_Ops to be inserted
2262 LIR_OpList _ops;
2263
2264 void append_new(int index, int count) { _index_and_count.append(index); _index_and_count.append(count); }
2265 void set_index_at(int i, int value) { _index_and_count.at_put((i << 1), value); }
2266 void set_count_at(int i, int value) { _index_and_count.at_put((i << 1) + 1, value); }
2267
2268 #ifdef ASSERT
2269 void verify();
2270 #endif
2271 public:
2272 LIR_InsertionBuffer() : _lir(NULL), _index_and_count(8), _ops(8) { }
2273
2274 // must be called before using the insertion buffer
2275 void init(LIR_List* lir) { assert(!initialized(), "already initialized"); _lir = lir; _index_and_count.clear(); _ops.clear(); }
2276 bool initialized() const { return _lir != NULL; }
2277 // called automatically when the buffer is appended to the LIR_List
2278 void finish() { _lir = NULL; }
2279
2280 // accessors
2281 LIR_List* lir_list() const { return _lir; }
2282 int number_of_insertion_points() const { return _index_and_count.length() >> 1; }
2283 int index_at(int i) const { return _index_and_count.at((i << 1)); }
2284 int count_at(int i) const { return _index_and_count.at((i << 1) + 1); }
2285
2286 int number_of_ops() const { return _ops.length(); }
2287 LIR_Op* op_at(int i) const { return _ops.at(i); }
2288
2289 // append an instruction to the buffer
2290 void append(int index, LIR_Op* op);
2291
2292 // instruction
2293 void move(int index, LIR_Opr src, LIR_Opr dst, CodeEmitInfo* info = NULL) { append(index, new LIR_Op1(lir_move, src, dst, dst->type(), lir_patch_none, info)); }
2294 };
2295
2296
2297 //
2298 // LIR_OpVisitState is used for manipulating LIR_Ops in an abstract way.
2299 // Calling a LIR_Op's visit function with a LIR_OpVisitState causes
2300 // information about the input, output and temporaries used by the
2301 // op to be recorded. It also records whether the op has call semantics
2302 // and also records all the CodeEmitInfos used by this op.
2303 //
2304
2305
2306 class LIR_OpVisitState: public StackObj {
2307 public:
2308 typedef enum { inputMode, firstMode = inputMode, tempMode, outputMode, numModes, invalidMode = -1 } OprMode;
2309
2310 enum {
2311 maxNumberOfOperands = 20,
2312 maxNumberOfInfos = 4
2313 };
2314
2315 private:
2316 LIR_Op* _op;
2317
2318 // optimization: the operands and infos are not stored in a variable-length
2319 // list, but in a fixed-size array to save time of size checks and resizing
2320 int _oprs_len[numModes];
2321 LIR_Opr* _oprs_new[numModes][maxNumberOfOperands];
2322 int _info_len;
2323 CodeEmitInfo* _info_new[maxNumberOfInfos];
2324
2325 bool _has_call;
2326 bool _has_slow_case;
2327
2328
2329 // only include register operands
2330 // addresses are decomposed to the base and index registers
2331 // constants and stack operands are ignored
2332 void append(LIR_Opr& opr, OprMode mode) {
2333 assert(opr->is_valid(), "should not call this otherwise");
2334 assert(mode >= 0 && mode < numModes, "bad mode");
2335
2336 if (opr->is_register()) {
2337 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
2338 _oprs_new[mode][_oprs_len[mode]++] = &opr;
2339
2340 } else if (opr->is_pointer()) {
2341 LIR_Address* address = opr->as_address_ptr();
2342 if (address != NULL) {
2343 // special handling for addresses: add base and index register of the address
2344 // both are always input operands or temp if we want to extend
2345 // their liveness!
2346 if (mode == outputMode) {
2347 mode = inputMode;
2348 }
2349 assert (mode == inputMode || mode == tempMode, "input or temp only for addresses");
2350 if (address->_base->is_valid()) {
2351 assert(address->_base->is_register(), "must be");
2352 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
2353 _oprs_new[mode][_oprs_len[mode]++] = &address->_base;
2354 }
2355 if (address->_index->is_valid()) {
2356 assert(address->_index->is_register(), "must be");
2357 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
2358 _oprs_new[mode][_oprs_len[mode]++] = &address->_index;
2359 }
2360
2361 } else {
2362 assert(opr->is_constant(), "constant operands are not processed");
2363 }
2364 } else {
2365 assert(opr->is_stack(), "stack operands are not processed");
2366 }
2367 }
2368
2369 void append(CodeEmitInfo* info) {
2370 assert(info != NULL, "should not call this otherwise");
2371 assert(_info_len < maxNumberOfInfos, "array overflow");
2372 _info_new[_info_len++] = info;
2373 }
2374
2375 public:
2376 LIR_OpVisitState() { reset(); }
2377
2378 LIR_Op* op() const { return _op; }
2379 void set_op(LIR_Op* op) { reset(); _op = op; }
2380
2381 bool has_call() const { return _has_call; }
2382 bool has_slow_case() const { return _has_slow_case; }
2383
2384 void reset() {
2385 _op = NULL;
2386 _has_call = false;
2387 _has_slow_case = false;
2388
2389 _oprs_len[inputMode] = 0;
2390 _oprs_len[tempMode] = 0;
2391 _oprs_len[outputMode] = 0;
2392 _info_len = 0;
2393 }
2394
2395
2396 int opr_count(OprMode mode) const {
2397 assert(mode >= 0 && mode < numModes, "bad mode");
2398 return _oprs_len[mode];
2399 }
2400
2401 LIR_Opr opr_at(OprMode mode, int index) const {
2402 assert(mode >= 0 && mode < numModes, "bad mode");
2403 assert(index >= 0 && index < _oprs_len[mode], "index out of bound");
2404 return *_oprs_new[mode][index];
2405 }
2406
2407 void set_opr_at(OprMode mode, int index, LIR_Opr opr) const {
2408 assert(mode >= 0 && mode < numModes, "bad mode");
2409 assert(index >= 0 && index < _oprs_len[mode], "index out of bound");
2410 *_oprs_new[mode][index] = opr;
2411 }
2412
2413 int info_count() const {
2414 return _info_len;
2415 }
2416
2417 CodeEmitInfo* info_at(int index) const {
2418 assert(index < _info_len, "index out of bounds");
2419 return _info_new[index];
2420 }
2421
2422 XHandlers* all_xhandler();
2423
2424 // collects all register operands of the instruction
2425 void visit(LIR_Op* op);
2426
2427 #ifdef ASSERT
2428 // check that an operation has no operands
2429 bool no_operands(LIR_Op* op);
2430 #endif
2431
2432 // LIR_Op visitor functions use these to fill in the state
2433 void do_input(LIR_Opr& opr) { append(opr, LIR_OpVisitState::inputMode); }
2434 void do_output(LIR_Opr& opr) { append(opr, LIR_OpVisitState::outputMode); }
2435 void do_temp(LIR_Opr& opr) { append(opr, LIR_OpVisitState::tempMode); }
2436 void do_info(CodeEmitInfo* info) { append(info); }
2437
2438 void do_stub(CodeStub* stub);
2439 void do_call() { _has_call = true; }
2440 void do_slow_case() { _has_slow_case = true; }
2441 void do_slow_case(CodeEmitInfo* info) {
2442 _has_slow_case = true;
2443 append(info);
2444 }
2445 };
2446
2447
2448 inline LIR_Opr LIR_OprDesc::illegalOpr() { return LIR_OprFact::illegalOpr; };
2449
2450 #endif // SHARE_C1_C1_LIR_HPP