1 /*
2 * Copyright (c) 2000, 2025, 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 #include "utilities/macros.hpp"
33
34 class BlockBegin;
35 class BlockList;
36 class LIR_Assembler;
37 class CodeEmitInfo;
38 class CodeStub;
39 class CodeStubList;
40 class C1SafepointPollStub;
41 class ArrayCopyStub;
42 class LIR_Op;
43 class ciType;
44 class ValueType;
45 class LIR_OpVisitState;
46
47 //---------------------------------------------------------------------
48 // LIR Operands
49 // LIR_OprPtr
50 // LIR_Const
51 // LIR_Address
52 //---------------------------------------------------------------------
53 class LIR_OprPtr;
54 class LIR_Const;
55 class LIR_Address;
56 class LIR_OprVisitor;
57 class LIR_Opr;
58
59 typedef int RegNr;
60
61 typedef GrowableArray<LIR_Opr> LIR_OprList;
62 typedef GrowableArray<LIR_Op*> LIR_OpArray;
63 typedef GrowableArray<LIR_Op*> LIR_OpList;
64
65 // define LIR_OprPtr early so LIR_Opr can refer to it
66 class LIR_OprPtr: public CompilationResourceObj {
67 public:
68 bool is_oop_pointer() const { return (type() == T_OBJECT); }
69 bool is_float_kind() const { BasicType t = type(); return (t == T_FLOAT) || (t == T_DOUBLE); }
70
71 virtual LIR_Const* as_constant() { return nullptr; }
72 virtual LIR_Address* as_address() { return nullptr; }
73 virtual BasicType type() const = 0;
74 virtual void print_value_on(outputStream* out) const = 0;
75 };
76
77
78
79 // LIR constants
80 class LIR_Const: public LIR_OprPtr {
81 private:
82 JavaValue _value;
83
84 void type_check(BasicType t) const { assert(type() == t, "type check"); }
85 void type_check(BasicType t1, BasicType t2) const { assert(type() == t1 || type() == t2, "type check"); }
86 void type_check(BasicType t1, BasicType t2, BasicType t3) const { assert(type() == t1 || type() == t2 || type() == t3, "type check"); }
87
88 public:
89 LIR_Const(jint i, bool is_address=false) { _value.set_type(is_address?T_ADDRESS:T_INT); _value.set_jint(i); }
90 LIR_Const(jlong l) { _value.set_type(T_LONG); _value.set_jlong(l); }
91 LIR_Const(jfloat f) { _value.set_type(T_FLOAT); _value.set_jfloat(f); }
92 LIR_Const(jdouble d) { _value.set_type(T_DOUBLE); _value.set_jdouble(d); }
93 LIR_Const(jobject o) { _value.set_type(T_OBJECT); _value.set_jobject(o); }
94 LIR_Const(void* p) {
95 #ifdef _LP64
96 assert(sizeof(jlong) >= sizeof(p), "too small");;
97 _value.set_type(T_LONG); _value.set_jlong((jlong)p);
98 #else
99 assert(sizeof(jint) >= sizeof(p), "too small");;
100 _value.set_type(T_INT); _value.set_jint((jint)p);
101 #endif
102 }
103 LIR_Const(Metadata* m) {
104 _value.set_type(T_METADATA);
105 #ifdef _LP64
106 _value.set_jlong((jlong)m);
107 #else
108 _value.set_jint((jint)m);
109 #endif // _LP64
110 }
111
112 virtual BasicType type() const { return _value.get_type(); }
113 virtual LIR_Const* as_constant() { return this; }
114
115 jint as_jint() const { type_check(T_INT, T_ADDRESS); return _value.get_jint(); }
116 jlong as_jlong() const { type_check(T_LONG ); return _value.get_jlong(); }
117 jfloat as_jfloat() const { type_check(T_FLOAT ); return _value.get_jfloat(); }
118 jdouble as_jdouble() const { type_check(T_DOUBLE); return _value.get_jdouble(); }
119 jobject as_jobject() const { type_check(T_OBJECT); return _value.get_jobject(); }
120 jint as_jint_lo() const { type_check(T_LONG ); return low(_value.get_jlong()); }
121 jint as_jint_hi() const { type_check(T_LONG ); return high(_value.get_jlong()); }
122
123 #ifdef _LP64
124 address as_pointer() const { type_check(T_LONG ); return (address)_value.get_jlong(); }
125 Metadata* as_metadata() const { type_check(T_METADATA); return (Metadata*)_value.get_jlong(); }
126 #else
127 address as_pointer() const { type_check(T_INT ); return (address)_value.get_jint(); }
128 Metadata* as_metadata() const { type_check(T_METADATA); return (Metadata*)_value.get_jint(); }
129 #endif
130
131
132 jint as_jint_bits() const { type_check(T_FLOAT, T_INT, T_ADDRESS); return _value.get_jint(); }
133 jint as_jint_lo_bits() const {
134 if (type() == T_DOUBLE) {
135 return low(jlong_cast(_value.get_jdouble()));
136 } else {
137 return as_jint_lo();
138 }
139 }
140 jint as_jint_hi_bits() const {
141 if (type() == T_DOUBLE) {
142 return high(jlong_cast(_value.get_jdouble()));
143 } else {
144 return as_jint_hi();
145 }
146 }
147 jlong as_jlong_bits() const {
148 if (type() == T_DOUBLE) {
149 return jlong_cast(_value.get_jdouble());
150 } else {
151 return as_jlong();
152 }
153 }
154
155 virtual void print_value_on(outputStream* out) const PRODUCT_RETURN;
156
157
158 bool is_zero_float() {
159 jfloat f = as_jfloat();
160 jfloat ok = 0.0f;
161 return jint_cast(f) == jint_cast(ok);
162 }
163
164 bool is_one_float() {
165 jfloat f = as_jfloat();
166 return !g_isnan(f) && g_isfinite(f) && f == 1.0;
167 }
168
169 bool is_zero_double() {
170 jdouble d = as_jdouble();
171 jdouble ok = 0.0;
172 return jlong_cast(d) == jlong_cast(ok);
173 }
174
175 bool is_one_double() {
176 jdouble d = as_jdouble();
177 return !g_isnan(d) && g_isfinite(d) && d == 1.0;
178 }
179 };
180
181
182 //---------------------LIR Operand descriptor------------------------------------
183 //
184 // The class LIR_Opr represents a LIR instruction operand;
185 // it can be a register (ALU/FPU), stack location or a constant;
186 // Constants and addresses are represented as resource area allocated
187 // structures (see above), and pointers are stored in the _value field (cast to
188 // an intptr_t).
189 // Registers and stack locations are represented inline as integers.
190 // (see value function).
191
192 // Previously, this class was derived from CompilationResourceObj.
193 // However, deriving from any of the "Obj" types in allocation.hpp seems
194 // detrimental, since in some build modes it would add a vtable to this class,
195 // which make it no longer be a 1-word trivially-copyable wrapper object,
196 // which is the entire point of it.
197
198 class LIR_Opr {
199 public:
200 // value structure:
201 // data other-non-data opr-type opr-kind
202 // +-------------------+--------------+-------+-----+
203 // [max...............................|6 5 4 3|2 1 0]
204 // ^
205 // is_pointer bit
206 //
207 // lowest bit cleared, means it is a structure pointer
208 // we need 4 bits to represent types
209
210 private:
211 friend class LIR_OprFact;
212
213 intptr_t _value;
214 // Conversion
215 intptr_t value() const { return _value; }
216
217 bool check_value_mask(intptr_t mask, intptr_t masked_value) const {
218 return (value() & mask) == masked_value;
219 }
220
221 enum OprKind {
222 pointer_value = 0
223 , stack_value = 1
224 , cpu_register = 3
225 , fpu_register = 5
226 , illegal_value = 7
227 };
228
229 enum OprBits {
230 pointer_bits = 1
231 , kind_bits = 3
232 , type_bits = 4
233 , size_bits = 2
234 , destroys_bits = 1
235 , virtual_bits = 1
236 , is_xmm_bits = 1
237 , last_use_bits = 1
238 , non_data_bits = kind_bits + type_bits + size_bits + destroys_bits + virtual_bits
239 + is_xmm_bits + last_use_bits
240 , data_bits = BitsPerInt - non_data_bits
241 , reg_bits = data_bits / 2 // for two registers in one value encoding
242 };
243
244 enum OprShift : uintptr_t {
245 kind_shift = 0
246 , type_shift = kind_shift + kind_bits
247 , size_shift = type_shift + type_bits
248 , destroys_shift = size_shift + size_bits
249 , last_use_shift = destroys_shift + destroys_bits
250 , virtual_shift = last_use_shift + last_use_bits
251 , is_xmm_shift = virtual_shift + virtual_bits
252 , data_shift = is_xmm_shift + is_xmm_bits
253 , reg1_shift = data_shift
254 , reg2_shift = data_shift + reg_bits
255
256 };
257
258 enum OprSize {
259 single_size = 0 << size_shift
260 , double_size = 1 << size_shift
261 };
262
263 enum OprMask {
264 kind_mask = right_n_bits(kind_bits)
265 , type_mask = right_n_bits(type_bits) << type_shift
266 , size_mask = right_n_bits(size_bits) << size_shift
267 , last_use_mask = right_n_bits(last_use_bits) << last_use_shift
268 , virtual_mask = right_n_bits(virtual_bits) << virtual_shift
269 , is_xmm_mask = right_n_bits(is_xmm_bits) << is_xmm_shift
270 , pointer_mask = right_n_bits(pointer_bits)
271 , lower_reg_mask = right_n_bits(reg_bits)
272 , no_type_mask = (int)(~(type_mask | last_use_mask))
273 };
274
275 uint32_t data() const { return (uint32_t)value() >> data_shift; }
276 int lo_reg_half() const { return data() & lower_reg_mask; }
277 int hi_reg_half() const { return (data() >> reg_bits) & lower_reg_mask; }
278 OprKind kind_field() const { return (OprKind)(value() & kind_mask); }
279 OprSize size_field() const { return (OprSize)(value() & size_mask); }
280
281 static char type_char(BasicType t);
282
283 public:
284 LIR_Opr() : _value(0) {}
285 LIR_Opr(intptr_t val) : _value(val) {}
286 LIR_Opr(LIR_OprPtr *val) : _value(reinterpret_cast<intptr_t>(val)) {}
287 bool operator==(const LIR_Opr &other) const { return _value == other._value; }
288 bool operator!=(const LIR_Opr &other) const { return _value != other._value; }
289 explicit operator bool() const { return _value != 0; }
290
291 // UGLY HACK: make this value object look like a pointer (to itself). This
292 // operator overload should be removed, and all callers updated from
293 // `opr->fn()` to `opr.fn()`.
294 const LIR_Opr* operator->() const { return this; }
295 LIR_Opr* operator->() { return this; }
296
297 enum {
298 vreg_base = ConcreteRegisterImpl::number_of_registers,
299 data_max = (1 << data_bits) - 1, // max unsigned value for data bit field
300 vreg_limit = 10000, // choose a reasonable limit,
301 vreg_max = MIN2(vreg_limit, data_max) // and make sure if fits in the bit field
302 };
303
304 static inline LIR_Opr illegalOpr();
305 static inline LIR_Opr nullOpr();
306
307 enum OprType {
308 unknown_type = 0 << type_shift // means: not set (catch uninitialized types)
309 , int_type = 1 << type_shift
310 , long_type = 2 << type_shift
311 , object_type = 3 << type_shift
312 , address_type = 4 << type_shift
313 , float_type = 5 << type_shift
314 , double_type = 6 << type_shift
315 , metadata_type = 7 << type_shift
316 };
317 friend OprType as_OprType(BasicType t);
318 friend BasicType as_BasicType(OprType t);
319
320 OprType type_field_valid() const { assert(is_register() || is_stack(), "should not be called otherwise"); return (OprType)(value() & type_mask); }
321 OprType type_field() const { return is_illegal() ? unknown_type : (OprType)(value() & type_mask); }
322
323 static OprSize size_for(BasicType t) {
324 switch (t) {
325 case T_LONG:
326 case T_DOUBLE:
327 return double_size;
328 break;
329
330 case T_FLOAT:
331 case T_BOOLEAN:
332 case T_CHAR:
333 case T_BYTE:
334 case T_SHORT:
335 case T_INT:
336 case T_ADDRESS:
337 case T_OBJECT:
338 case T_ARRAY:
339 case T_METADATA:
340 return single_size;
341 break;
342
343 default:
344 ShouldNotReachHere();
345 return single_size;
346 }
347 }
348
349
350 void validate_type() const PRODUCT_RETURN;
351
352 BasicType type() const {
353 if (is_pointer()) {
354 return pointer()->type();
355 }
356 return as_BasicType(type_field());
357 }
358
359
360 ValueType* value_type() const { return as_ValueType(type()); }
361
362 char type_char() const { return type_char((is_pointer()) ? pointer()->type() : type()); }
363
364 bool is_equal(LIR_Opr opr) const { return *this == opr; }
365 // checks whether types are same
366 bool is_same_type(LIR_Opr opr) const {
367 assert(type_field() != unknown_type &&
368 opr->type_field() != unknown_type, "shouldn't see unknown_type");
369 return type_field() == opr->type_field();
370 }
371 bool is_same_register(LIR_Opr opr) {
372 return (is_register() && opr->is_register() &&
373 kind_field() == opr->kind_field() &&
374 (value() & no_type_mask) == (opr->value() & no_type_mask));
375 }
376
377 bool is_pointer() const { return check_value_mask(pointer_mask, pointer_value); }
378 bool is_illegal() const { return kind_field() == illegal_value; }
379 bool is_valid() const { return kind_field() != illegal_value; }
380
381 bool is_register() const { return is_cpu_register() || is_fpu_register(); }
382 bool is_virtual() const { return is_virtual_cpu() || is_virtual_fpu(); }
383
384 bool is_constant() const { return is_pointer() && pointer()->as_constant() != nullptr; }
385 bool is_address() const { return is_pointer() && pointer()->as_address() != nullptr; }
386
387 bool is_float_kind() const { return is_pointer() ? pointer()->is_float_kind() : (kind_field() == fpu_register); }
388 bool is_oop() const;
389
390 // semantic for fpu- and xmm-registers:
391 // * is_float and is_double return true for xmm_registers
392 // (so is_single_fpu and is_single_xmm are true)
393 // * So you must always check for is_???_xmm prior to is_???_fpu to
394 // distinguish between fpu- and xmm-registers
395
396 bool is_stack() const { validate_type(); return check_value_mask(kind_mask, stack_value); }
397 bool is_single_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | single_size); }
398 bool is_double_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | double_size); }
399
400 bool is_cpu_register() const { validate_type(); return check_value_mask(kind_mask, cpu_register); }
401 bool is_virtual_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register | virtual_mask); }
402 bool is_fixed_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register); }
403 bool is_single_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | single_size); }
404 bool is_double_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | double_size); }
405
406 bool is_fpu_register() const { validate_type(); return check_value_mask(kind_mask, fpu_register); }
407 bool is_virtual_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register | virtual_mask); }
408 bool is_fixed_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register); }
409 bool is_single_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | single_size); }
410 bool is_double_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | double_size); }
411
412 bool is_xmm_register() const { validate_type(); return check_value_mask(kind_mask | is_xmm_mask, fpu_register | is_xmm_mask); }
413 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); }
414 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); }
415
416 // fast accessor functions for special bits that do not work for pointers
417 // (in this functions, the check for is_pointer() is omitted)
418 bool is_single_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, single_size); }
419 bool is_double_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, double_size); }
420 bool is_virtual_register() const { assert(is_register(), "type check"); return check_value_mask(virtual_mask, virtual_mask); }
421 bool is_oop_register() const { assert(is_register() || is_stack(), "type check"); return type_field_valid() == object_type; }
422 BasicType type_register() const { assert(is_register() || is_stack(), "type check"); return as_BasicType(type_field_valid()); }
423
424 bool is_last_use() const { assert(is_register(), "only works for registers"); return (value() & last_use_mask) != 0; }
425 LIR_Opr make_last_use() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | last_use_mask); }
426
427
428 int single_stack_ix() const { assert(is_single_stack() && !is_virtual(), "type check"); return (int)data(); }
429 int double_stack_ix() const { assert(is_double_stack() && !is_virtual(), "type check"); return (int)data(); }
430 RegNr cpu_regnr() const { assert(is_single_cpu() && !is_virtual(), "type check"); return (RegNr)data(); }
431 RegNr cpu_regnrLo() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
432 RegNr cpu_regnrHi() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
433 RegNr fpu_regnr() const { assert(is_single_fpu() && !is_virtual(), "type check"); return (RegNr)data(); }
434 RegNr fpu_regnrLo() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
435 RegNr fpu_regnrHi() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
436 RegNr xmm_regnr() const { assert(is_single_xmm() && !is_virtual(), "type check"); return (RegNr)data(); }
437 RegNr xmm_regnrLo() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
438 RegNr xmm_regnrHi() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
439 int vreg_number() const { assert(is_virtual(), "type check"); return (RegNr)data(); }
440
441 LIR_OprPtr* pointer() const { assert(_value != 0 && is_pointer(), "nullness and type check"); return (LIR_OprPtr*)_value; }
442 LIR_Const* as_constant_ptr() const { return pointer()->as_constant(); }
443 LIR_Address* as_address_ptr() const { return pointer()->as_address(); }
444
445 Register as_register() const;
446 Register as_register_lo() const;
447 Register as_register_hi() const;
448
449 Register as_pointer_register() {
450 #ifdef _LP64
451 if (is_double_cpu()) {
452 assert(as_register_lo() == as_register_hi(), "should be a single register");
453 return as_register_lo();
454 }
455 #endif
456 return as_register();
457 }
458
459 FloatRegister as_float_reg () const;
460 FloatRegister as_double_reg () const;
461 #ifdef X86
462 XMMRegister as_xmm_float_reg () const;
463 XMMRegister as_xmm_double_reg() const;
464 // for compatibility with RInfo
465 int fpu() const { return lo_reg_half(); }
466 #endif
467
468 jint as_jint() const { return as_constant_ptr()->as_jint(); }
469 jlong as_jlong() const { return as_constant_ptr()->as_jlong(); }
470 jfloat as_jfloat() const { return as_constant_ptr()->as_jfloat(); }
471 jdouble as_jdouble() const { return as_constant_ptr()->as_jdouble(); }
472 jobject as_jobject() const { return as_constant_ptr()->as_jobject(); }
473
474 void print() const PRODUCT_RETURN;
475 void print(outputStream* out) const PRODUCT_RETURN;
476 };
477
478 inline LIR_Opr::OprType as_OprType(BasicType type) {
479 switch (type) {
480 case T_INT: return LIR_Opr::int_type;
481 case T_LONG: return LIR_Opr::long_type;
482 case T_FLOAT: return LIR_Opr::float_type;
483 case T_DOUBLE: return LIR_Opr::double_type;
484 case T_OBJECT:
485 case T_ARRAY: return LIR_Opr::object_type;
486 case T_ADDRESS: return LIR_Opr::address_type;
487 case T_METADATA: return LIR_Opr::metadata_type;
488 case T_ILLEGAL: // fall through
489 default: ShouldNotReachHere(); return LIR_Opr::unknown_type;
490 }
491 }
492
493 inline BasicType as_BasicType(LIR_Opr::OprType t) {
494 switch (t) {
495 case LIR_Opr::int_type: return T_INT;
496 case LIR_Opr::long_type: return T_LONG;
497 case LIR_Opr::float_type: return T_FLOAT;
498 case LIR_Opr::double_type: return T_DOUBLE;
499 case LIR_Opr::object_type: return T_OBJECT;
500 case LIR_Opr::address_type: return T_ADDRESS;
501 case LIR_Opr::metadata_type:return T_METADATA;
502 case LIR_Opr::unknown_type: // fall through
503 default: ShouldNotReachHere(); return T_ILLEGAL;
504 }
505 }
506
507
508 // LIR_Address
509 class LIR_Address: public LIR_OprPtr {
510 friend class LIR_OpVisitState;
511
512 public:
513 // NOTE: currently these must be the log2 of the scale factor (and
514 // must also be equivalent to the ScaleFactor enum in
515 // assembler_i486.hpp)
516 enum Scale {
517 times_1 = 0,
518 times_2 = 1,
519 times_4 = 2,
520 times_8 = 3
521 };
522
523 private:
524 LIR_Opr _base;
525 LIR_Opr _index;
526 intx _disp;
527 Scale _scale;
528 BasicType _type;
529
530 public:
531 LIR_Address(LIR_Opr base, LIR_Opr index, BasicType type):
532 _base(base)
533 , _index(index)
534 , _disp(0)
535 , _scale(times_1)
536 , _type(type) { verify(); }
537
538 LIR_Address(LIR_Opr base, intx disp, BasicType type):
539 _base(base)
540 , _index(LIR_Opr::illegalOpr())
541 , _disp(disp)
542 , _scale(times_1)
543 , _type(type) { verify(); }
544
545 LIR_Address(LIR_Opr base, BasicType type):
546 _base(base)
547 , _index(LIR_Opr::illegalOpr())
548 , _disp(0)
549 , _scale(times_1)
550 , _type(type) { verify(); }
551
552 LIR_Address(LIR_Opr base, LIR_Opr index, intx disp, BasicType type):
553 _base(base)
554 , _index(index)
555 , _disp(disp)
556 , _scale(times_1)
557 , _type(type) { verify(); }
558
559 LIR_Address(LIR_Opr base, LIR_Opr index, Scale scale, intx disp, BasicType type):
560 _base(base)
561 , _index(index)
562 , _disp(disp)
563 , _scale(scale)
564 , _type(type) { verify(); }
565
566 LIR_Opr base() const { return _base; }
567 LIR_Opr index() const { return _index; }
568 Scale scale() const { return _scale; }
569 intx disp() const { return _disp; }
570
571 bool equals(LIR_Address* other) const { return base() == other->base() && index() == other->index() && disp() == other->disp() && scale() == other->scale(); }
572
573 virtual LIR_Address* as_address() { return this; }
574 virtual BasicType type() const { return _type; }
575 virtual void print_value_on(outputStream* out) const PRODUCT_RETURN;
576
577 void verify() const PRODUCT_RETURN;
578
579 static Scale scale(BasicType type);
580 };
581
582
583 // operand factory
584 class LIR_OprFact: public AllStatic {
585 public:
586
587 static LIR_Opr illegalOpr;
588 static LIR_Opr nullOpr;
589
590 static LIR_Opr single_cpu(int reg) {
591 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) |
592 LIR_Opr::int_type |
593 LIR_Opr::cpu_register |
594 LIR_Opr::single_size);
595 }
596 static LIR_Opr single_cpu_oop(int reg) {
597 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) |
598 LIR_Opr::object_type |
599 LIR_Opr::cpu_register |
600 LIR_Opr::single_size);
601 }
602 static LIR_Opr single_cpu_address(int reg) {
603 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) |
604 LIR_Opr::address_type |
605 LIR_Opr::cpu_register |
606 LIR_Opr::single_size);
607 }
608 static LIR_Opr single_cpu_metadata(int reg) {
609 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) |
610 LIR_Opr::metadata_type |
611 LIR_Opr::cpu_register |
612 LIR_Opr::single_size);
613 }
614 static LIR_Opr double_cpu(int reg1, int reg2) {
615 LP64_ONLY(assert(reg1 == reg2, "must be identical"));
616 return (LIR_Opr)(intptr_t)((reg1 << LIR_Opr::reg1_shift) |
617 (reg2 << LIR_Opr::reg2_shift) |
618 LIR_Opr::long_type |
619 LIR_Opr::cpu_register |
620 LIR_Opr::double_size);
621 }
622
623 static LIR_Opr single_fpu(int reg) {
624 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) |
625 LIR_Opr::float_type |
626 LIR_Opr::fpu_register |
627 LIR_Opr::single_size);
628 }
629
630 // Platform dependent.
631 static LIR_Opr double_fpu(int reg1, int reg2 = -1 /*fnoreg*/);
632
633 #ifdef ARM32
634 static LIR_Opr single_softfp(int reg) {
635 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) |
636 LIR_Opr::float_type |
637 LIR_Opr::cpu_register |
638 LIR_Opr::single_size);
639 }
640 static LIR_Opr double_softfp(int reg1, int reg2) {
641 return (LIR_Opr)(intptr_t)((reg1 << LIR_Opr::reg1_shift) |
642 (reg2 << LIR_Opr::reg2_shift) |
643 LIR_Opr::double_type |
644 LIR_Opr::cpu_register |
645 LIR_Opr::double_size);
646 }
647 #endif // ARM32
648
649 #if defined(X86)
650 static LIR_Opr single_xmm(int reg) {
651 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) |
652 LIR_Opr::float_type |
653 LIR_Opr::fpu_register |
654 LIR_Opr::single_size |
655 LIR_Opr::is_xmm_mask);
656 }
657 static LIR_Opr double_xmm(int reg) {
658 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) |
659 (reg << LIR_Opr::reg2_shift) |
660 LIR_Opr::double_type |
661 LIR_Opr::fpu_register |
662 LIR_Opr::double_size |
663 LIR_Opr::is_xmm_mask);
664 }
665 #endif // X86
666
667 static LIR_Opr virtual_register(int index, BasicType type) {
668 if (index > LIR_Opr::vreg_max) {
669 // Running out of virtual registers. Caller should bailout.
670 return illegalOpr;
671 }
672
673 LIR_Opr res;
674 switch (type) {
675 case T_OBJECT: // fall through
676 case T_ARRAY:
677 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
678 LIR_Opr::object_type |
679 LIR_Opr::cpu_register |
680 LIR_Opr::single_size |
681 LIR_Opr::virtual_mask);
682 break;
683
684 case T_METADATA:
685 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
686 LIR_Opr::metadata_type|
687 LIR_Opr::cpu_register |
688 LIR_Opr::single_size |
689 LIR_Opr::virtual_mask);
690 break;
691
692 case T_INT:
693 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
694 LIR_Opr::int_type |
695 LIR_Opr::cpu_register |
696 LIR_Opr::single_size |
697 LIR_Opr::virtual_mask);
698 break;
699
700 case T_ADDRESS:
701 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
702 LIR_Opr::address_type |
703 LIR_Opr::cpu_register |
704 LIR_Opr::single_size |
705 LIR_Opr::virtual_mask);
706 break;
707
708 case T_LONG:
709 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
710 LIR_Opr::long_type |
711 LIR_Opr::cpu_register |
712 LIR_Opr::double_size |
713 LIR_Opr::virtual_mask);
714 break;
715
716 #ifdef __SOFTFP__
717 case T_FLOAT:
718 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
719 LIR_Opr::float_type |
720 LIR_Opr::cpu_register |
721 LIR_Opr::single_size |
722 LIR_Opr::virtual_mask);
723 break;
724 case T_DOUBLE:
725 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
726 LIR_Opr::double_type |
727 LIR_Opr::cpu_register |
728 LIR_Opr::double_size |
729 LIR_Opr::virtual_mask);
730 break;
731 #else // __SOFTFP__
732 case T_FLOAT:
733 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
734 LIR_Opr::float_type |
735 LIR_Opr::fpu_register |
736 LIR_Opr::single_size |
737 LIR_Opr::virtual_mask);
738 break;
739
740 case
741 T_DOUBLE: res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
742 LIR_Opr::double_type |
743 LIR_Opr::fpu_register |
744 LIR_Opr::double_size |
745 LIR_Opr::virtual_mask);
746 break;
747 #endif // __SOFTFP__
748 default: ShouldNotReachHere(); res = illegalOpr;
749 }
750
751 #ifdef ASSERT
752 res->validate_type();
753 assert(res->vreg_number() == index, "conversion check");
754 assert(index >= LIR_Opr::vreg_base, "must start at vreg_base");
755
756 // old-style calculation; check if old and new method are equal
757 LIR_Opr::OprType t = as_OprType(type);
758 #ifdef __SOFTFP__
759 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
760 t |
761 LIR_Opr::cpu_register |
762 LIR_Opr::size_for(type) | LIR_Opr::virtual_mask);
763 #else // __SOFTFP__
764 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) | t |
765 ((type == T_FLOAT || type == T_DOUBLE) ? LIR_Opr::fpu_register : LIR_Opr::cpu_register) |
766 LIR_Opr::size_for(type) | LIR_Opr::virtual_mask);
767 assert(res == old_res, "old and new method not equal");
768 #endif // __SOFTFP__
769 #endif // ASSERT
770
771 return res;
772 }
773
774 // 'index' is computed by FrameMap::local_stack_pos(index); do not use other parameters as
775 // the index is platform independent; a double stack using indices 2 and 3 has always
776 // index 2.
777 static LIR_Opr stack(int index, BasicType type) {
778 LIR_Opr res;
779 switch (type) {
780 case T_OBJECT: // fall through
781 case T_ARRAY:
782 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
783 LIR_Opr::object_type |
784 LIR_Opr::stack_value |
785 LIR_Opr::single_size);
786 break;
787
788 case T_METADATA:
789 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
790 LIR_Opr::metadata_type |
791 LIR_Opr::stack_value |
792 LIR_Opr::single_size);
793 break;
794 case T_INT:
795 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
796 LIR_Opr::int_type |
797 LIR_Opr::stack_value |
798 LIR_Opr::single_size);
799 break;
800
801 case T_ADDRESS:
802 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
803 LIR_Opr::address_type |
804 LIR_Opr::stack_value |
805 LIR_Opr::single_size);
806 break;
807
808 case T_LONG:
809 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
810 LIR_Opr::long_type |
811 LIR_Opr::stack_value |
812 LIR_Opr::double_size);
813 break;
814
815 case T_FLOAT:
816 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
817 LIR_Opr::float_type |
818 LIR_Opr::stack_value |
819 LIR_Opr::single_size);
820 break;
821 case T_DOUBLE:
822 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
823 LIR_Opr::double_type |
824 LIR_Opr::stack_value |
825 LIR_Opr::double_size);
826 break;
827
828 default: ShouldNotReachHere(); res = illegalOpr;
829 }
830
831 #ifdef ASSERT
832 assert(index >= 0, "index must be positive");
833 assert(index == (int)res->data(), "conversion check");
834
835 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
836 LIR_Opr::stack_value |
837 as_OprType(type) |
838 LIR_Opr::size_for(type));
839 assert(res == old_res, "old and new method not equal");
840 #endif
841
842 return res;
843 }
844
845 static LIR_Opr intConst(jint i) { return (LIR_Opr)(new LIR_Const(i)); }
846 static LIR_Opr longConst(jlong l) { return (LIR_Opr)(new LIR_Const(l)); }
847 static LIR_Opr floatConst(jfloat f) { return (LIR_Opr)(new LIR_Const(f)); }
848 static LIR_Opr doubleConst(jdouble d) { return (LIR_Opr)(new LIR_Const(d)); }
849 static LIR_Opr oopConst(jobject o) { return (LIR_Opr)(new LIR_Const(o)); }
850 static LIR_Opr address(LIR_Address* a) { return (LIR_Opr)a; }
851 static LIR_Opr intptrConst(void* p) { return (LIR_Opr)(new LIR_Const(p)); }
852 static LIR_Opr intptrConst(intptr_t v) { return (LIR_Opr)(new LIR_Const((void*)v)); }
853 static LIR_Opr illegal() { return (LIR_Opr)-1; }
854 static LIR_Opr addressConst(jint i) { return (LIR_Opr)(new LIR_Const(i, true)); }
855 static LIR_Opr metadataConst(Metadata* m) { return (LIR_Opr)(new LIR_Const(m)); }
856
857 static LIR_Opr value_type(ValueType* type);
858 };
859
860
861 //-------------------------------------------------------------------------------
862 // LIR Instructions
863 //-------------------------------------------------------------------------------
864 //
865 // Note:
866 // - every instruction has a result operand
867 // - every instruction has an CodeEmitInfo operand (can be revisited later)
868 // - every instruction has a LIR_OpCode operand
869 // - LIR_OpN, means an instruction that has N input operands
870 //
871 // class hierarchy:
872 //
873 class LIR_Op;
874 class LIR_Op0;
875 class LIR_OpLabel;
876 class LIR_Op1;
877 class LIR_OpBranch;
878 class LIR_OpConvert;
879 class LIR_OpAllocObj;
880 class LIR_OpReturn;
881 class LIR_Op2;
882 class LIR_Op3;
883 class LIR_OpAllocArray;
884 class LIR_Op4;
885 class LIR_OpCall;
886 class LIR_OpJavaCall;
887 class LIR_OpRTCall;
888 class LIR_OpArrayCopy;
889 class LIR_OpUpdateCRC32;
890 class LIR_OpLock;
891 class LIR_OpTypeCheck;
892 class LIR_OpFlattenedArrayCheck;
893 class LIR_OpNullFreeArrayCheck;
894 class LIR_OpSubstitutabilityCheck;
895 class LIR_OpCompareAndSwap;
896 class LIR_OpLoadKlass;
897 class LIR_OpProfileCall;
898 class LIR_OpProfileType;
899 class LIR_OpProfileInlineType;
900 #ifdef ASSERT
901 class LIR_OpAssert;
902 #endif
903
904 // LIR operation codes
905 enum LIR_Code {
906 lir_none
907 , begin_op0
908 , lir_label
909 , lir_nop
910 , lir_std_entry
911 , lir_osr_entry
912 , lir_breakpoint
913 , lir_rtcall
914 , lir_membar
915 , lir_membar_acquire
916 , lir_membar_release
917 , lir_membar_loadload
918 , lir_membar_storestore
919 , lir_membar_loadstore
920 , lir_membar_storeload
921 , lir_get_thread
922 , lir_on_spin_wait
923 , lir_check_orig_pc
924 , end_op0
925 , begin_op1
926 , lir_push
927 , lir_pop
928 , lir_null_check
929 , lir_return
930 , lir_leal
931 , lir_move
932 , lir_convert
933 , lir_alloc_object
934 , lir_monaddr
935 , lir_sqrt
936 , lir_abs
937 , lir_neg
938 , lir_f2hf
939 , lir_hf2f
940 , lir_safepoint
941 , lir_unwind
942 , lir_load_klass
943 , end_op1
944 , begin_op2
945 , lir_branch
946 , lir_cond_float_branch
947 , lir_cmp
948 , lir_cmp_l2i
949 , lir_ucmp_fd2i
950 , lir_cmp_fd2i
951 , lir_add
952 , lir_sub
953 , lir_mul
954 , lir_div
955 , lir_rem
956 , lir_logic_and
957 , lir_logic_or
958 , lir_logic_xor
959 , lir_shl
960 , lir_shr
961 , lir_ushr
962 , lir_alloc_array
963 , lir_throw
964 , lir_xadd
965 , lir_xchg
966 , end_op2
967 , begin_op3
968 , lir_idiv
969 , lir_irem
970 , lir_fmad
971 , lir_fmaf
972 , end_op3
973 , begin_op4
974 , lir_cmove
975 , end_op4
976 , begin_opJavaCall
977 , lir_static_call
978 , lir_optvirtual_call
979 , lir_icvirtual_call
980 , lir_dynamic_call
981 , end_opJavaCall
982 , begin_opArrayCopy
983 , lir_arraycopy
984 , end_opArrayCopy
985 , begin_opUpdateCRC32
986 , lir_updatecrc32
987 , end_opUpdateCRC32
988 , begin_opLock
989 , lir_lock
990 , lir_unlock
991 , end_opLock
992 , begin_opTypeCheck
993 , lir_instanceof
994 , lir_checkcast
995 , lir_store_check
996 , end_opTypeCheck
997 , begin_opFlattenedArrayCheck
998 , lir_flat_array_check
999 , end_opFlattenedArrayCheck
1000 , begin_opNullFreeArrayCheck
1001 , lir_null_free_array_check
1002 , end_opNullFreeArrayCheck
1003 , begin_opSubstitutabilityCheck
1004 , lir_substitutability_check
1005 , end_opSubstitutabilityCheck
1006 , begin_opCompareAndSwap
1007 , lir_cas_long
1008 , lir_cas_obj
1009 , lir_cas_int
1010 , end_opCompareAndSwap
1011 , begin_opMDOProfile
1012 , lir_profile_call
1013 , lir_profile_type
1014 , lir_profile_inline_type
1015 , end_opMDOProfile
1016 , begin_opAssert
1017 , lir_assert
1018 , end_opAssert
1019 #if INCLUDE_ZGC
1020 , begin_opXLoadBarrierTest
1021 , lir_xloadbarrier_test
1022 , end_opXLoadBarrierTest
1023 #endif
1024 };
1025
1026
1027 enum LIR_Condition {
1028 lir_cond_equal
1029 , lir_cond_notEqual
1030 , lir_cond_less
1031 , lir_cond_lessEqual
1032 , lir_cond_greaterEqual
1033 , lir_cond_greater
1034 , lir_cond_belowEqual
1035 , lir_cond_aboveEqual
1036 , lir_cond_always
1037 , lir_cond_unknown = -1
1038 };
1039
1040
1041 enum LIR_PatchCode {
1042 lir_patch_none,
1043 lir_patch_low,
1044 lir_patch_high,
1045 lir_patch_normal
1046 };
1047
1048
1049 enum LIR_MoveKind {
1050 lir_move_normal,
1051 lir_move_volatile,
1052 lir_move_wide,
1053 lir_move_max_flag
1054 };
1055
1056
1057 // --------------------------------------------------
1058 // LIR_Op
1059 // --------------------------------------------------
1060 class LIR_Op: public CompilationResourceObj {
1061 friend class LIR_OpVisitState;
1062
1063 #ifdef ASSERT
1064 private:
1065 const char * _file;
1066 int _line;
1067 #endif
1068
1069 protected:
1070 LIR_Opr _result;
1071 unsigned short _code;
1072 unsigned short _flags;
1073 CodeEmitInfo* _info;
1074 int _id; // value id for register allocation
1075 Instruction* _source; // for debugging
1076
1077 static void print_condition(outputStream* out, LIR_Condition cond) PRODUCT_RETURN;
1078
1079 protected:
1080 static bool is_in_range(LIR_Code test, LIR_Code start, LIR_Code end) { return start < test && test < end; }
1081
1082 public:
1083 LIR_Op()
1084 :
1085 #ifdef ASSERT
1086 _file(nullptr)
1087 , _line(0),
1088 #endif
1089 _result(LIR_OprFact::illegalOpr)
1090 , _code(lir_none)
1091 , _flags(0)
1092 , _info(nullptr)
1093 , _id(-1)
1094 , _source(nullptr) {}
1095
1096 LIR_Op(LIR_Code code, LIR_Opr result, CodeEmitInfo* info)
1097 :
1098 #ifdef ASSERT
1099 _file(nullptr)
1100 , _line(0),
1101 #endif
1102 _result(result)
1103 , _code(code)
1104 , _flags(0)
1105 , _info(info)
1106 , _id(-1)
1107 , _source(nullptr) {}
1108
1109 CodeEmitInfo* info() const { return _info; }
1110 LIR_Code code() const { return (LIR_Code)_code; }
1111 LIR_Opr result_opr() const { return _result; }
1112 void set_result_opr(LIR_Opr opr) { _result = opr; }
1113
1114 #ifdef ASSERT
1115 void set_file_and_line(const char * file, int line) {
1116 _file = file;
1117 _line = line;
1118 }
1119 #endif
1120
1121 virtual const char * name() const PRODUCT_RETURN_NULL;
1122 virtual void visit(LIR_OpVisitState* state);
1123
1124 int id() const { return _id; }
1125 void set_id(int id) { _id = id; }
1126
1127 Instruction* source() const { return _source; }
1128 void set_source(Instruction* ins) { _source = ins; }
1129
1130 virtual void emit_code(LIR_Assembler* masm) = 0;
1131 virtual void print_instr(outputStream* out) const = 0;
1132 virtual void print_on(outputStream* st) const PRODUCT_RETURN;
1133
1134 virtual bool is_patching() { return false; }
1135 virtual LIR_OpCall* as_OpCall() { return nullptr; }
1136 virtual LIR_OpJavaCall* as_OpJavaCall() { return nullptr; }
1137 virtual LIR_OpLabel* as_OpLabel() { return nullptr; }
1138 virtual LIR_OpLock* as_OpLock() { return nullptr; }
1139 virtual LIR_OpAllocArray* as_OpAllocArray() { return nullptr; }
1140 virtual LIR_OpAllocObj* as_OpAllocObj() { return nullptr; }
1141 virtual LIR_OpBranch* as_OpBranch() { return nullptr; }
1142 virtual LIR_OpReturn* as_OpReturn() { return nullptr; }
1143 virtual LIR_OpRTCall* as_OpRTCall() { return nullptr; }
1144 virtual LIR_OpConvert* as_OpConvert() { return nullptr; }
1145 virtual LIR_Op0* as_Op0() { return nullptr; }
1146 virtual LIR_Op1* as_Op1() { return nullptr; }
1147 virtual LIR_Op2* as_Op2() { return nullptr; }
1148 virtual LIR_Op3* as_Op3() { return nullptr; }
1149 virtual LIR_Op4* as_Op4() { return nullptr; }
1150 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return nullptr; }
1151 virtual LIR_OpUpdateCRC32* as_OpUpdateCRC32() { return nullptr; }
1152 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return nullptr; }
1153 virtual LIR_OpFlattenedArrayCheck* as_OpFlattenedArrayCheck() { return nullptr; }
1154 virtual LIR_OpNullFreeArrayCheck* as_OpNullFreeArrayCheck() { return nullptr; }
1155 virtual LIR_OpSubstitutabilityCheck* as_OpSubstitutabilityCheck() { return nullptr; }
1156 virtual LIR_OpCompareAndSwap* as_OpCompareAndSwap() { return nullptr; }
1157 virtual LIR_OpLoadKlass* as_OpLoadKlass() { return nullptr; }
1158 virtual LIR_OpProfileCall* as_OpProfileCall() { return nullptr; }
1159 virtual LIR_OpProfileType* as_OpProfileType() { return nullptr; }
1160 virtual LIR_OpProfileInlineType* as_OpProfileInlineType() { return nullptr; }
1161 #ifdef ASSERT
1162 virtual LIR_OpAssert* as_OpAssert() { return nullptr; }
1163 #endif
1164
1165 virtual void verify() const {}
1166 };
1167
1168 // for calls
1169 class LIR_OpCall: public LIR_Op {
1170 friend class LIR_OpVisitState;
1171
1172 protected:
1173 address _addr;
1174 LIR_OprList* _arguments;
1175 protected:
1176 LIR_OpCall(LIR_Code code, address addr, LIR_Opr result,
1177 LIR_OprList* arguments, CodeEmitInfo* info = nullptr)
1178 : LIR_Op(code, result, info)
1179 , _addr(addr)
1180 , _arguments(arguments) {}
1181
1182 public:
1183 address addr() const { return _addr; }
1184 const LIR_OprList* arguments() const { return _arguments; }
1185 virtual LIR_OpCall* as_OpCall() { return this; }
1186 };
1187
1188
1189 // --------------------------------------------------
1190 // LIR_OpJavaCall
1191 // --------------------------------------------------
1192 class LIR_OpJavaCall: public LIR_OpCall {
1193 friend class LIR_OpVisitState;
1194
1195 private:
1196 ciMethod* _method;
1197 LIR_Opr _receiver;
1198 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.
1199
1200 public:
1201 LIR_OpJavaCall(LIR_Code code, ciMethod* method,
1202 LIR_Opr receiver, LIR_Opr result,
1203 address addr, LIR_OprList* arguments,
1204 CodeEmitInfo* info)
1205 : LIR_OpCall(code, addr, result, arguments, info)
1206 , _method(method)
1207 , _receiver(receiver)
1208 , _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr)
1209 { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); }
1210
1211 LIR_OpJavaCall(LIR_Code code, ciMethod* method,
1212 LIR_Opr receiver, LIR_Opr result, intptr_t vtable_offset,
1213 LIR_OprList* arguments, CodeEmitInfo* info)
1214 : LIR_OpCall(code, (address)vtable_offset, result, arguments, info)
1215 , _method(method)
1216 , _receiver(receiver)
1217 , _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr)
1218 { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); }
1219
1220 LIR_Opr receiver() const { return _receiver; }
1221 ciMethod* method() const { return _method; }
1222
1223 // JSR 292 support.
1224 bool is_invokedynamic() const { return code() == lir_dynamic_call; }
1225 bool is_method_handle_invoke() const {
1226 return method()->is_compiled_lambda_form() || // Java-generated lambda form
1227 method()->is_method_handle_intrinsic(); // JVM-generated MH intrinsic
1228 }
1229
1230 virtual void emit_code(LIR_Assembler* masm);
1231 virtual LIR_OpJavaCall* as_OpJavaCall() { return this; }
1232 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1233
1234 bool maybe_return_as_fields(ciInlineKlass** vk = nullptr) const;
1235 };
1236
1237 // --------------------------------------------------
1238 // LIR_OpLabel
1239 // --------------------------------------------------
1240 // Location where a branch can continue
1241 class LIR_OpLabel: public LIR_Op {
1242 friend class LIR_OpVisitState;
1243
1244 private:
1245 Label* _label;
1246 public:
1247 LIR_OpLabel(Label* lbl)
1248 : LIR_Op(lir_label, LIR_OprFact::illegalOpr, nullptr)
1249 , _label(lbl) {}
1250 Label* label() const { return _label; }
1251
1252 virtual void emit_code(LIR_Assembler* masm);
1253 virtual LIR_OpLabel* as_OpLabel() { return this; }
1254 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1255 };
1256
1257 // LIR_OpArrayCopy
1258 class LIR_OpArrayCopy: public LIR_Op {
1259 friend class LIR_OpVisitState;
1260
1261 private:
1262 ArrayCopyStub* _stub;
1263 LIR_Opr _src;
1264 LIR_Opr _src_pos;
1265 LIR_Opr _dst;
1266 LIR_Opr _dst_pos;
1267 LIR_Opr _length;
1268 LIR_Opr _tmp;
1269 ciArrayKlass* _expected_type;
1270 int _flags;
1271
1272 public:
1273 enum Flags {
1274 src_null_check = 1 << 0,
1275 dst_null_check = 1 << 1,
1276 src_pos_positive_check = 1 << 2,
1277 dst_pos_positive_check = 1 << 3,
1278 length_positive_check = 1 << 4,
1279 src_range_check = 1 << 5,
1280 dst_range_check = 1 << 6,
1281 type_check = 1 << 7,
1282 overlapping = 1 << 8,
1283 unaligned = 1 << 9,
1284 src_objarray = 1 << 10,
1285 dst_objarray = 1 << 11,
1286 always_slow_path = 1 << 12,
1287 src_inlinetype_check = 1 << 13,
1288 dst_inlinetype_check = 1 << 14,
1289 all_flags = (1 << 15) - 1
1290 };
1291
1292 LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length, LIR_Opr tmp,
1293 ciArrayKlass* expected_type, int flags, CodeEmitInfo* info);
1294
1295 LIR_Opr src() const { return _src; }
1296 LIR_Opr src_pos() const { return _src_pos; }
1297 LIR_Opr dst() const { return _dst; }
1298 LIR_Opr dst_pos() const { return _dst_pos; }
1299 LIR_Opr length() const { return _length; }
1300 LIR_Opr tmp() const { return _tmp; }
1301 int flags() const { return _flags; }
1302 ciArrayKlass* expected_type() const { return _expected_type; }
1303 ArrayCopyStub* stub() const { return _stub; }
1304 static int get_initial_copy_flags() { return LIR_OpArrayCopy::unaligned |
1305 LIR_OpArrayCopy::overlapping; }
1306
1307 virtual void emit_code(LIR_Assembler* masm);
1308 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return this; }
1309 void print_instr(outputStream* out) const PRODUCT_RETURN;
1310 };
1311
1312 // LIR_OpUpdateCRC32
1313 class LIR_OpUpdateCRC32: public LIR_Op {
1314 friend class LIR_OpVisitState;
1315
1316 private:
1317 LIR_Opr _crc;
1318 LIR_Opr _val;
1319
1320 public:
1321
1322 LIR_OpUpdateCRC32(LIR_Opr crc, LIR_Opr val, LIR_Opr res);
1323
1324 LIR_Opr crc() const { return _crc; }
1325 LIR_Opr val() const { return _val; }
1326
1327 virtual void emit_code(LIR_Assembler* masm);
1328 virtual LIR_OpUpdateCRC32* as_OpUpdateCRC32() { return this; }
1329 void print_instr(outputStream* out) const PRODUCT_RETURN;
1330 };
1331
1332 // --------------------------------------------------
1333 // LIR_Op0
1334 // --------------------------------------------------
1335 class LIR_Op0: public LIR_Op {
1336 friend class LIR_OpVisitState;
1337
1338 public:
1339 LIR_Op0(LIR_Code code)
1340 : LIR_Op(code, LIR_OprFact::illegalOpr, nullptr) { assert(is_in_range(code, begin_op0, end_op0), "code check"); }
1341 LIR_Op0(LIR_Code code, LIR_Opr result, CodeEmitInfo* info = nullptr)
1342 : LIR_Op(code, result, info) { assert(is_in_range(code, begin_op0, end_op0), "code check"); }
1343
1344 virtual void emit_code(LIR_Assembler* masm);
1345 virtual LIR_Op0* as_Op0() { return this; }
1346 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1347 };
1348
1349
1350 // --------------------------------------------------
1351 // LIR_Op1
1352 // --------------------------------------------------
1353
1354 class LIR_Op1: public LIR_Op {
1355 friend class LIR_OpVisitState;
1356
1357 protected:
1358 LIR_Opr _opr; // input operand
1359 LIR_Opr _tmp;
1360 BasicType _type; // Operand types
1361 LIR_PatchCode _patch; // only required with patchin (NEEDS_CLEANUP: do we want a special instruction for patching?)
1362
1363 static void print_patch_code(outputStream* out, LIR_PatchCode code);
1364
1365 void set_kind(LIR_MoveKind kind) {
1366 assert(code() == lir_move, "must be");
1367 _flags = kind;
1368 }
1369
1370 public:
1371 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 = nullptr)
1372 : LIR_Op(code, result, info)
1373 , _opr(opr)
1374 , _tmp(LIR_OprFact::illegalOpr)
1375 , _type(type)
1376 , _patch(patch) { assert(is_in_range(code, begin_op1, end_op1), "code check"); }
1377
1378 LIR_Op1(LIR_Code code, LIR_Opr opr, LIR_Opr result, LIR_Opr tmp, BasicType type = T_ILLEGAL, LIR_PatchCode patch = lir_patch_none, CodeEmitInfo* info = nullptr)
1379 : LIR_Op(code, result, info)
1380 , _opr(opr)
1381 , _tmp(tmp)
1382 , _type(type)
1383 , _patch(patch) { assert(is_in_range(code, begin_op1, end_op1), "code check"); }
1384
1385 LIR_Op1(LIR_Code code, LIR_Opr opr, LIR_Opr result, BasicType type, LIR_PatchCode patch, CodeEmitInfo* info, LIR_MoveKind kind)
1386 : LIR_Op(code, result, info)
1387 , _opr(opr)
1388 , _tmp(LIR_OprFact::illegalOpr)
1389 , _type(type)
1390 , _patch(patch) {
1391 assert(code == lir_move, "must be");
1392 set_kind(kind);
1393 }
1394
1395 LIR_Op1(LIR_Code code, LIR_Opr opr, CodeEmitInfo* info)
1396 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1397 , _opr(opr)
1398 , _tmp(LIR_OprFact::illegalOpr)
1399 , _type(T_ILLEGAL)
1400 , _patch(lir_patch_none) { assert(is_in_range(code, begin_op1, end_op1), "code check"); }
1401
1402 LIR_Opr in_opr() const { return _opr; }
1403 LIR_Opr tmp_opr() const { return _tmp; }
1404 LIR_PatchCode patch_code() const { return _patch; }
1405 BasicType type() const { return _type; }
1406
1407 LIR_MoveKind move_kind() const {
1408 assert(code() == lir_move, "must be");
1409 return (LIR_MoveKind)_flags;
1410 }
1411
1412 virtual bool is_patching() { return _patch != lir_patch_none; }
1413 virtual void emit_code(LIR_Assembler* masm);
1414 virtual LIR_Op1* as_Op1() { return this; }
1415 virtual const char * name() const PRODUCT_RETURN_NULL;
1416
1417 void set_in_opr(LIR_Opr opr) { _opr = opr; }
1418
1419 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1420 virtual void verify() const;
1421 };
1422
1423
1424 // for runtime calls
1425 class LIR_OpRTCall: public LIR_OpCall {
1426 friend class LIR_OpVisitState;
1427
1428 private:
1429 LIR_Opr _tmp;
1430 public:
1431 LIR_OpRTCall(address addr, LIR_Opr tmp,
1432 LIR_Opr result, LIR_OprList* arguments, CodeEmitInfo* info = nullptr)
1433 : LIR_OpCall(lir_rtcall, addr, result, arguments, info)
1434 , _tmp(tmp) {}
1435
1436 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1437 virtual void emit_code(LIR_Assembler* masm);
1438 virtual LIR_OpRTCall* as_OpRTCall() { return this; }
1439
1440 LIR_Opr tmp() const { return _tmp; }
1441
1442 virtual void verify() const;
1443 };
1444
1445
1446
1447 class LIR_OpReturn: public LIR_Op1 {
1448 friend class LIR_OpVisitState;
1449
1450 private:
1451 C1SafepointPollStub* _stub;
1452
1453 public:
1454 LIR_OpReturn(LIR_Opr opr);
1455
1456 C1SafepointPollStub* stub() const { return _stub; }
1457 virtual LIR_OpReturn* as_OpReturn() { return this; }
1458 };
1459
1460 class ConversionStub;
1461
1462 class LIR_OpConvert: public LIR_Op1 {
1463 friend class LIR_OpVisitState;
1464
1465 private:
1466 Bytecodes::Code _bytecode;
1467 ConversionStub* _stub;
1468
1469 public:
1470 LIR_OpConvert(Bytecodes::Code code, LIR_Opr opr, LIR_Opr result, ConversionStub* stub)
1471 : LIR_Op1(lir_convert, opr, result)
1472 , _bytecode(code)
1473 , _stub(stub) {}
1474
1475 Bytecodes::Code bytecode() const { return _bytecode; }
1476 ConversionStub* stub() const { return _stub; }
1477
1478 virtual void emit_code(LIR_Assembler* masm);
1479 virtual LIR_OpConvert* as_OpConvert() { return this; }
1480 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1481
1482 static void print_bytecode(outputStream* out, Bytecodes::Code code) PRODUCT_RETURN;
1483 };
1484
1485
1486 // LIR_OpAllocObj
1487 class LIR_OpAllocObj : public LIR_Op1 {
1488 friend class LIR_OpVisitState;
1489
1490 private:
1491 LIR_Opr _tmp1;
1492 LIR_Opr _tmp2;
1493 LIR_Opr _tmp3;
1494 LIR_Opr _tmp4;
1495 int _hdr_size;
1496 int _obj_size;
1497 CodeStub* _stub;
1498 bool _init_check;
1499
1500 public:
1501 LIR_OpAllocObj(LIR_Opr klass, LIR_Opr result,
1502 LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1503 int hdr_size, int obj_size, bool init_check, CodeStub* stub)
1504 : LIR_Op1(lir_alloc_object, klass, result)
1505 , _tmp1(t1)
1506 , _tmp2(t2)
1507 , _tmp3(t3)
1508 , _tmp4(t4)
1509 , _hdr_size(hdr_size)
1510 , _obj_size(obj_size)
1511 , _stub(stub)
1512 , _init_check(init_check) { }
1513
1514 LIR_Opr klass() const { return in_opr(); }
1515 LIR_Opr obj() const { return result_opr(); }
1516 LIR_Opr tmp1() const { return _tmp1; }
1517 LIR_Opr tmp2() const { return _tmp2; }
1518 LIR_Opr tmp3() const { return _tmp3; }
1519 LIR_Opr tmp4() const { return _tmp4; }
1520 int header_size() const { return _hdr_size; }
1521 int object_size() const { return _obj_size; }
1522 bool init_check() const { return _init_check; }
1523 CodeStub* stub() const { return _stub; }
1524
1525 virtual void emit_code(LIR_Assembler* masm);
1526 virtual LIR_OpAllocObj * as_OpAllocObj () { return this; }
1527 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1528 };
1529
1530
1531 // LIR_OpTypeCheck
1532 class LIR_OpTypeCheck: public LIR_Op {
1533 friend class LIR_OpVisitState;
1534
1535 private:
1536 LIR_Opr _object;
1537 LIR_Opr _array;
1538 ciKlass* _klass;
1539 LIR_Opr _tmp1;
1540 LIR_Opr _tmp2;
1541 LIR_Opr _tmp3;
1542 CodeEmitInfo* _info_for_patch;
1543 CodeEmitInfo* _info_for_exception;
1544 CodeStub* _stub;
1545 ciMethod* _profiled_method;
1546 int _profiled_bci;
1547 bool _should_profile;
1548 bool _fast_check;
1549 bool _need_null_check;
1550
1551 public:
1552 LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
1553 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1554 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub, bool need_null_check = true);
1555 LIR_OpTypeCheck(LIR_Code code, LIR_Opr object, LIR_Opr array,
1556 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception);
1557
1558 LIR_Opr object() const { return _object; }
1559 LIR_Opr array() const { assert(code() == lir_store_check, "not valid"); return _array; }
1560 LIR_Opr tmp1() const { return _tmp1; }
1561 LIR_Opr tmp2() const { return _tmp2; }
1562 LIR_Opr tmp3() const { return _tmp3; }
1563 ciKlass* klass() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _klass; }
1564 bool fast_check() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _fast_check; }
1565 CodeEmitInfo* info_for_patch() const { return _info_for_patch; }
1566 CodeEmitInfo* info_for_exception() const { return _info_for_exception; }
1567 CodeStub* stub() const { return _stub; }
1568
1569 // MethodData* profiling
1570 void set_profiled_method(ciMethod *method) { _profiled_method = method; }
1571 void set_profiled_bci(int bci) { _profiled_bci = bci; }
1572 void set_should_profile(bool b) { _should_profile = b; }
1573 ciMethod* profiled_method() const { return _profiled_method; }
1574 int profiled_bci() const { return _profiled_bci; }
1575 bool should_profile() const { return _should_profile; }
1576 bool need_null_check() const { return _need_null_check; }
1577 virtual bool is_patching() { return _info_for_patch != nullptr; }
1578 virtual void emit_code(LIR_Assembler* masm);
1579 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return this; }
1580 void print_instr(outputStream* out) const PRODUCT_RETURN;
1581 };
1582
1583 // LIR_OpFlattenedArrayCheck
1584 class LIR_OpFlattenedArrayCheck: public LIR_Op {
1585 friend class LIR_OpVisitState;
1586
1587 private:
1588 LIR_Opr _array;
1589 LIR_Opr _value;
1590 LIR_Opr _tmp;
1591 CodeStub* _stub;
1592 public:
1593 LIR_OpFlattenedArrayCheck(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub);
1594 LIR_Opr array() const { return _array; }
1595 LIR_Opr value() const { return _value; }
1596 LIR_Opr tmp() const { return _tmp; }
1597 CodeStub* stub() const { return _stub; }
1598
1599 virtual void emit_code(LIR_Assembler* masm);
1600 virtual LIR_OpFlattenedArrayCheck* as_OpFlattenedArrayCheck() { return this; }
1601 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1602 };
1603
1604 // LIR_OpNullFreeArrayCheck
1605 class LIR_OpNullFreeArrayCheck: public LIR_Op {
1606 friend class LIR_OpVisitState;
1607
1608 private:
1609 LIR_Opr _array;
1610 LIR_Opr _tmp;
1611 public:
1612 LIR_OpNullFreeArrayCheck(LIR_Opr array, LIR_Opr tmp);
1613 LIR_Opr array() const { return _array; }
1614 LIR_Opr tmp() const { return _tmp; }
1615
1616 virtual void emit_code(LIR_Assembler* masm);
1617 virtual LIR_OpNullFreeArrayCheck* as_OpNullFreeArrayCheck() { return this; }
1618 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1619 };
1620
1621 class LIR_OpSubstitutabilityCheck: public LIR_Op {
1622 friend class LIR_OpVisitState;
1623
1624 private:
1625 LIR_Opr _left;
1626 LIR_Opr _right;
1627 LIR_Opr _equal_result;
1628 LIR_Opr _not_equal_result;
1629 LIR_Opr _tmp1;
1630 LIR_Opr _tmp2;
1631 ciKlass* _left_klass;
1632 ciKlass* _right_klass;
1633 LIR_Opr _left_klass_op;
1634 LIR_Opr _right_klass_op;
1635 CodeStub* _stub;
1636 public:
1637 LIR_OpSubstitutabilityCheck(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result,
1638 LIR_Opr tmp1, LIR_Opr tmp2,
1639 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op,
1640 CodeEmitInfo* info, CodeStub* stub);
1641
1642 LIR_Opr left() const { return _left; }
1643 LIR_Opr right() const { return _right; }
1644 LIR_Opr equal_result() const { return _equal_result; }
1645 LIR_Opr not_equal_result() const { return _not_equal_result; }
1646 LIR_Opr tmp1() const { return _tmp1; }
1647 LIR_Opr tmp2() const { return _tmp2; }
1648 ciKlass* left_klass() const { return _left_klass; }
1649 ciKlass* right_klass() const { return _right_klass; }
1650 LIR_Opr left_klass_op() const { return _left_klass_op; }
1651 LIR_Opr right_klass_op() const { return _right_klass_op; }
1652 CodeStub* stub() const { return _stub; }
1653
1654 virtual void emit_code(LIR_Assembler* masm);
1655 virtual LIR_OpSubstitutabilityCheck* as_OpSubstitutabilityCheck() { return this; }
1656 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1657 };
1658
1659 // LIR_Op2
1660 class LIR_Op2: public LIR_Op {
1661 friend class LIR_OpVisitState;
1662
1663 protected:
1664 LIR_Opr _opr1;
1665 LIR_Opr _opr2;
1666 LIR_Opr _tmp1;
1667 LIR_Opr _tmp2;
1668 LIR_Opr _tmp3;
1669 LIR_Opr _tmp4;
1670 LIR_Opr _tmp5;
1671 LIR_Condition _condition;
1672 BasicType _type;
1673
1674 void verify() const;
1675
1676 public:
1677 LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, CodeEmitInfo* info = nullptr, BasicType type = T_ILLEGAL)
1678 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1679 , _opr1(opr1)
1680 , _opr2(opr2)
1681 , _tmp1(LIR_OprFact::illegalOpr)
1682 , _tmp2(LIR_OprFact::illegalOpr)
1683 , _tmp3(LIR_OprFact::illegalOpr)
1684 , _tmp4(LIR_OprFact::illegalOpr)
1685 , _tmp5(LIR_OprFact::illegalOpr)
1686 , _condition(condition)
1687 , _type(type) {
1688 assert(code == lir_cmp || code == lir_branch || code == lir_cond_float_branch || code == lir_assert, "code check");
1689 }
1690
1691 LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, BasicType type)
1692 : LIR_Op(code, result, nullptr)
1693 , _opr1(opr1)
1694 , _opr2(opr2)
1695 , _tmp1(LIR_OprFact::illegalOpr)
1696 , _tmp2(LIR_OprFact::illegalOpr)
1697 , _tmp3(LIR_OprFact::illegalOpr)
1698 , _tmp4(LIR_OprFact::illegalOpr)
1699 , _tmp5(LIR_OprFact::illegalOpr)
1700 , _condition(condition)
1701 , _type(type) {
1702 assert(code == lir_cmove, "code check");
1703 assert(type != T_ILLEGAL, "cmove should have type");
1704 }
1705
1706 LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result = LIR_OprFact::illegalOpr,
1707 CodeEmitInfo* info = nullptr, BasicType type = T_ILLEGAL)
1708 : LIR_Op(code, result, info)
1709 , _opr1(opr1)
1710 , _opr2(opr2)
1711 , _tmp1(LIR_OprFact::illegalOpr)
1712 , _tmp2(LIR_OprFact::illegalOpr)
1713 , _tmp3(LIR_OprFact::illegalOpr)
1714 , _tmp4(LIR_OprFact::illegalOpr)
1715 , _tmp5(LIR_OprFact::illegalOpr)
1716 , _condition(lir_cond_unknown)
1717 , _type(type) {
1718 assert(code != lir_cmp && code != lir_branch && code != lir_cond_float_branch && is_in_range(code, begin_op2, end_op2), "code check");
1719 }
1720
1721 LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, LIR_Opr tmp1, LIR_Opr tmp2 = LIR_OprFact::illegalOpr,
1722 LIR_Opr tmp3 = LIR_OprFact::illegalOpr, LIR_Opr tmp4 = LIR_OprFact::illegalOpr, LIR_Opr tmp5 = LIR_OprFact::illegalOpr)
1723 : LIR_Op(code, result, nullptr)
1724 , _opr1(opr1)
1725 , _opr2(opr2)
1726 , _tmp1(tmp1)
1727 , _tmp2(tmp2)
1728 , _tmp3(tmp3)
1729 , _tmp4(tmp4)
1730 , _tmp5(tmp5)
1731 , _condition(lir_cond_unknown)
1732 , _type(T_ILLEGAL) {
1733 assert(code != lir_cmp && code != lir_branch && code != lir_cond_float_branch && is_in_range(code, begin_op2, end_op2), "code check");
1734 }
1735
1736 LIR_Opr in_opr1() const { return _opr1; }
1737 LIR_Opr in_opr2() const { return _opr2; }
1738 BasicType type() const { return _type; }
1739 LIR_Opr tmp1_opr() const { return _tmp1; }
1740 LIR_Opr tmp2_opr() const { return _tmp2; }
1741 LIR_Opr tmp3_opr() const { return _tmp3; }
1742 LIR_Opr tmp4_opr() const { return _tmp4; }
1743 LIR_Opr tmp5_opr() const { return _tmp5; }
1744 LIR_Condition condition() const {
1745 assert(code() == lir_cmp || code() == lir_branch || code() == lir_cond_float_branch || code() == lir_assert, "only valid for branch and assert"); return _condition;
1746 }
1747 void set_condition(LIR_Condition condition) {
1748 assert(code() == lir_cmp || code() == lir_branch || code() == lir_cond_float_branch, "only valid for branch"); _condition = condition;
1749 }
1750
1751 void set_in_opr1(LIR_Opr opr) { _opr1 = opr; }
1752 void set_in_opr2(LIR_Opr opr) { _opr2 = opr; }
1753
1754 virtual void emit_code(LIR_Assembler* masm);
1755 virtual LIR_Op2* as_Op2() { return this; }
1756 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1757 };
1758
1759 class LIR_OpBranch: public LIR_Op2 {
1760 friend class LIR_OpVisitState;
1761
1762 private:
1763 Label* _label;
1764 BlockBegin* _block; // if this is a branch to a block, this is the block
1765 BlockBegin* _ublock; // if this is a float-branch, this is the unordered block
1766 CodeStub* _stub; // if this is a branch to a stub, this is the stub
1767
1768 public:
1769 LIR_OpBranch(LIR_Condition cond, Label* lbl)
1770 : LIR_Op2(lir_branch, cond, LIR_OprFact::illegalOpr, LIR_OprFact::illegalOpr, (CodeEmitInfo*) nullptr)
1771 , _label(lbl)
1772 , _block(nullptr)
1773 , _ublock(nullptr)
1774 , _stub(nullptr) { }
1775
1776 LIR_OpBranch(LIR_Condition cond, BlockBegin* block);
1777 LIR_OpBranch(LIR_Condition cond, CodeStub* stub);
1778
1779 // for unordered comparisons
1780 LIR_OpBranch(LIR_Condition cond, BlockBegin* block, BlockBegin* ublock);
1781
1782 LIR_Condition cond() const {
1783 return condition();
1784 }
1785
1786 void set_cond(LIR_Condition cond) {
1787 set_condition(cond);
1788 }
1789
1790 Label* label() const { return _label; }
1791 BlockBegin* block() const { return _block; }
1792 BlockBegin* ublock() const { return _ublock; }
1793 CodeStub* stub() const { return _stub; }
1794
1795 void change_block(BlockBegin* b);
1796 void change_ublock(BlockBegin* b);
1797 void negate_cond();
1798
1799 virtual void emit_code(LIR_Assembler* masm);
1800 virtual LIR_OpBranch* as_OpBranch() { return this; }
1801 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1802 };
1803
1804 class LIR_OpAllocArray : public LIR_Op {
1805 friend class LIR_OpVisitState;
1806
1807 private:
1808 LIR_Opr _klass;
1809 LIR_Opr _len;
1810 LIR_Opr _tmp1;
1811 LIR_Opr _tmp2;
1812 LIR_Opr _tmp3;
1813 LIR_Opr _tmp4;
1814 CodeStub* _stub;
1815 BasicType _type;
1816 bool _zero_array;
1817 bool _always_slow_path;
1818
1819 public:
1820 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, bool zero_array, bool always_slow_path)
1821 : LIR_Op(lir_alloc_array, result, nullptr)
1822 , _klass(klass)
1823 , _len(len)
1824 , _tmp1(t1)
1825 , _tmp2(t2)
1826 , _tmp3(t3)
1827 , _tmp4(t4)
1828 , _stub(stub)
1829 , _type(type)
1830 , _zero_array(zero_array)
1831 , _always_slow_path(always_slow_path) {}
1832
1833 LIR_Opr klass() const { return _klass; }
1834 LIR_Opr len() const { return _len; }
1835 LIR_Opr obj() const { return result_opr(); }
1836 LIR_Opr tmp1() const { return _tmp1; }
1837 LIR_Opr tmp2() const { return _tmp2; }
1838 LIR_Opr tmp3() const { return _tmp3; }
1839 LIR_Opr tmp4() const { return _tmp4; }
1840 BasicType type() const { return _type; }
1841 CodeStub* stub() const { return _stub; }
1842 bool zero_array() const { return _zero_array; }
1843 bool always_slow_path() const { return _always_slow_path; }
1844
1845 virtual void emit_code(LIR_Assembler* masm);
1846 virtual LIR_OpAllocArray * as_OpAllocArray () { return this; }
1847 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1848 };
1849
1850
1851 class LIR_Op3: public LIR_Op {
1852 friend class LIR_OpVisitState;
1853
1854 private:
1855 LIR_Opr _opr1;
1856 LIR_Opr _opr2;
1857 LIR_Opr _opr3;
1858 public:
1859 LIR_Op3(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr opr3, LIR_Opr result, CodeEmitInfo* info = nullptr)
1860 : LIR_Op(code, result, info)
1861 , _opr1(opr1)
1862 , _opr2(opr2)
1863 , _opr3(opr3) { assert(is_in_range(code, begin_op3, end_op3), "code check"); }
1864 LIR_Opr in_opr1() const { return _opr1; }
1865 LIR_Opr in_opr2() const { return _opr2; }
1866 LIR_Opr in_opr3() const { return _opr3; }
1867
1868 virtual void emit_code(LIR_Assembler* masm);
1869 virtual LIR_Op3* as_Op3() { return this; }
1870 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1871 };
1872
1873 class LIR_Op4: public LIR_Op {
1874 friend class LIR_OpVisitState;
1875 protected:
1876 LIR_Opr _opr1;
1877 LIR_Opr _opr2;
1878 LIR_Opr _opr3;
1879 LIR_Opr _opr4;
1880 LIR_Opr _tmp1;
1881 LIR_Opr _tmp2;
1882 LIR_Opr _tmp3;
1883 LIR_Opr _tmp4;
1884 LIR_Opr _tmp5;
1885 LIR_Condition _condition;
1886 BasicType _type;
1887
1888 public:
1889 LIR_Op4(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr opr3, LIR_Opr opr4,
1890 LIR_Opr result, BasicType type)
1891 : LIR_Op(code, result, nullptr)
1892 , _opr1(opr1)
1893 , _opr2(opr2)
1894 , _opr3(opr3)
1895 , _opr4(opr4)
1896 , _tmp1(LIR_OprFact::illegalOpr)
1897 , _tmp2(LIR_OprFact::illegalOpr)
1898 , _tmp3(LIR_OprFact::illegalOpr)
1899 , _tmp4(LIR_OprFact::illegalOpr)
1900 , _tmp5(LIR_OprFact::illegalOpr)
1901 , _condition(condition)
1902 , _type(type) {
1903 assert(code == lir_cmove, "code check");
1904 assert(type != T_ILLEGAL, "cmove should have type");
1905 }
1906
1907 LIR_Opr in_opr1() const { return _opr1; }
1908 LIR_Opr in_opr2() const { return _opr2; }
1909 LIR_Opr in_opr3() const { return _opr3; }
1910 LIR_Opr in_opr4() const { return _opr4; }
1911 BasicType type() const { return _type; }
1912 LIR_Opr tmp1_opr() const { return _tmp1; }
1913 LIR_Opr tmp2_opr() const { return _tmp2; }
1914 LIR_Opr tmp3_opr() const { return _tmp3; }
1915 LIR_Opr tmp4_opr() const { return _tmp4; }
1916 LIR_Opr tmp5_opr() const { return _tmp5; }
1917
1918 LIR_Condition condition() const { return _condition; }
1919 void set_condition(LIR_Condition condition) { _condition = condition; }
1920
1921 void set_in_opr1(LIR_Opr opr) { _opr1 = opr; }
1922 void set_in_opr2(LIR_Opr opr) { _opr2 = opr; }
1923 void set_in_opr3(LIR_Opr opr) { _opr3 = opr; }
1924 void set_in_opr4(LIR_Opr opr) { _opr4 = opr; }
1925 virtual void emit_code(LIR_Assembler* masm);
1926 virtual LIR_Op4* as_Op4() { return this; }
1927
1928 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1929 };
1930
1931 //--------------------------------
1932 class LabelObj: public CompilationResourceObj {
1933 private:
1934 Label _label;
1935 public:
1936 LabelObj() {}
1937 Label* label() { return &_label; }
1938 };
1939
1940
1941 class LIR_OpLock: public LIR_Op {
1942 friend class LIR_OpVisitState;
1943
1944 private:
1945 LIR_Opr _hdr;
1946 LIR_Opr _obj;
1947 LIR_Opr _lock;
1948 LIR_Opr _scratch;
1949 CodeStub* _stub;
1950 CodeStub* _throw_ie_stub;
1951 public:
1952 LIR_OpLock(LIR_Code code, LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info, CodeStub* throw_ie_stub=nullptr)
1953 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1954 , _hdr(hdr)
1955 , _obj(obj)
1956 , _lock(lock)
1957 , _scratch(scratch)
1958 , _stub(stub)
1959 , _throw_ie_stub(throw_ie_stub) {}
1960
1961 LIR_Opr hdr_opr() const { return _hdr; }
1962 LIR_Opr obj_opr() const { return _obj; }
1963 LIR_Opr lock_opr() const { return _lock; }
1964 LIR_Opr scratch_opr() const { return _scratch; }
1965 CodeStub* stub() const { return _stub; }
1966 CodeStub* throw_ie_stub() const { return _throw_ie_stub; }
1967
1968 virtual void emit_code(LIR_Assembler* masm);
1969 virtual LIR_OpLock* as_OpLock() { return this; }
1970 void print_instr(outputStream* out) const PRODUCT_RETURN;
1971 };
1972
1973 class LIR_OpLoadKlass: public LIR_Op {
1974 friend class LIR_OpVisitState;
1975
1976 private:
1977 LIR_Opr _obj;
1978 public:
1979 LIR_OpLoadKlass(LIR_Opr obj, LIR_Opr result, CodeEmitInfo* info)
1980 : LIR_Op(lir_load_klass, result, info)
1981 , _obj(obj)
1982 {}
1983
1984 LIR_Opr obj() const { return _obj; }
1985
1986 virtual LIR_OpLoadKlass* as_OpLoadKlass() { return this; }
1987 virtual void emit_code(LIR_Assembler* masm);
1988 void print_instr(outputStream* out) const PRODUCT_RETURN;
1989 };
1990
1991 #ifdef ASSERT
1992 // LIR_OpAssert
1993 class LIR_OpAssert : public LIR_Op2 {
1994 friend class LIR_OpVisitState;
1995
1996 private:
1997 const char* _msg;
1998 bool _halt;
1999
2000 public:
2001 LIR_OpAssert(LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, const char* msg, bool halt)
2002 : LIR_Op2(lir_assert, condition, opr1, opr2)
2003 , _msg(msg)
2004 , _halt(halt) {
2005 }
2006
2007 const char* msg() const { return _msg; }
2008 bool halt() const { return _halt; }
2009
2010 virtual void emit_code(LIR_Assembler* masm);
2011 virtual LIR_OpAssert* as_OpAssert() { return this; }
2012 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
2013 };
2014 #endif
2015
2016 // LIR_OpCompareAndSwap
2017 class LIR_OpCompareAndSwap : public LIR_Op {
2018 friend class LIR_OpVisitState;
2019
2020 private:
2021 LIR_Opr _addr;
2022 LIR_Opr _cmp_value;
2023 LIR_Opr _new_value;
2024 LIR_Opr _tmp1;
2025 LIR_Opr _tmp2;
2026
2027 public:
2028 LIR_OpCompareAndSwap(LIR_Code code, LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
2029 LIR_Opr t1, LIR_Opr t2, LIR_Opr result)
2030 : LIR_Op(code, result, nullptr) // no result, no info
2031 , _addr(addr)
2032 , _cmp_value(cmp_value)
2033 , _new_value(new_value)
2034 , _tmp1(t1)
2035 , _tmp2(t2) { }
2036
2037 LIR_Opr addr() const { return _addr; }
2038 LIR_Opr cmp_value() const { return _cmp_value; }
2039 LIR_Opr new_value() const { return _new_value; }
2040 LIR_Opr tmp1() const { return _tmp1; }
2041 LIR_Opr tmp2() const { return _tmp2; }
2042
2043 virtual void emit_code(LIR_Assembler* masm);
2044 virtual LIR_OpCompareAndSwap * as_OpCompareAndSwap () { return this; }
2045 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
2046 };
2047
2048 // LIR_OpProfileCall
2049 class LIR_OpProfileCall : public LIR_Op {
2050 friend class LIR_OpVisitState;
2051
2052 private:
2053 ciMethod* _profiled_method;
2054 int _profiled_bci;
2055 ciMethod* _profiled_callee;
2056 LIR_Opr _mdo;
2057 LIR_Opr _recv;
2058 LIR_Opr _tmp1;
2059 ciKlass* _known_holder;
2060
2061 public:
2062 // Destroys recv
2063 LIR_OpProfileCall(ciMethod* profiled_method, int profiled_bci, ciMethod* profiled_callee, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* known_holder)
2064 : LIR_Op(lir_profile_call, LIR_OprFact::illegalOpr, nullptr) // no result, no info
2065 , _profiled_method(profiled_method)
2066 , _profiled_bci(profiled_bci)
2067 , _profiled_callee(profiled_callee)
2068 , _mdo(mdo)
2069 , _recv(recv)
2070 , _tmp1(t1)
2071 , _known_holder(known_holder) { }
2072
2073 ciMethod* profiled_method() const { return _profiled_method; }
2074 int profiled_bci() const { return _profiled_bci; }
2075 ciMethod* profiled_callee() const { return _profiled_callee; }
2076 LIR_Opr mdo() const { return _mdo; }
2077 LIR_Opr recv() const { return _recv; }
2078 LIR_Opr tmp1() const { return _tmp1; }
2079 ciKlass* known_holder() const { return _known_holder; }
2080
2081 virtual void emit_code(LIR_Assembler* masm);
2082 virtual LIR_OpProfileCall* as_OpProfileCall() { return this; }
2083 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
2084 bool should_profile_receiver_type() const {
2085 bool callee_is_static = _profiled_callee->is_loaded() && _profiled_callee->is_static();
2086 bool callee_is_private = _profiled_callee->is_loaded() && _profiled_callee->is_private();
2087 Bytecodes::Code bc = _profiled_method->java_code_at_bci(_profiled_bci);
2088 bool call_is_virtual = (bc == Bytecodes::_invokevirtual && !callee_is_private) || bc == Bytecodes::_invokeinterface;
2089 return C1ProfileVirtualCalls && call_is_virtual && !callee_is_static;
2090 }
2091 };
2092
2093 // LIR_OpProfileType
2094 class LIR_OpProfileType : public LIR_Op {
2095 friend class LIR_OpVisitState;
2096
2097 private:
2098 LIR_Opr _mdp;
2099 LIR_Opr _obj;
2100 LIR_Opr _tmp;
2101 ciKlass* _exact_klass; // non null if we know the klass statically (no need to load it from _obj)
2102 intptr_t _current_klass; // what the profiling currently reports
2103 bool _not_null; // true if we know statically that _obj cannot be null
2104 bool _no_conflict; // true if we're profling parameters, _exact_klass is not null and we know
2105 // _exact_klass it the only possible type for this parameter in any context.
2106
2107 public:
2108 // Destroys recv
2109 LIR_OpProfileType(LIR_Opr mdp, LIR_Opr obj, ciKlass* exact_klass, intptr_t current_klass, LIR_Opr tmp, bool not_null, bool no_conflict)
2110 : LIR_Op(lir_profile_type, LIR_OprFact::illegalOpr, nullptr) // no result, no info
2111 , _mdp(mdp)
2112 , _obj(obj)
2113 , _tmp(tmp)
2114 , _exact_klass(exact_klass)
2115 , _current_klass(current_klass)
2116 , _not_null(not_null)
2117 , _no_conflict(no_conflict) { }
2118
2119 LIR_Opr mdp() const { return _mdp; }
2120 LIR_Opr obj() const { return _obj; }
2121 LIR_Opr tmp() const { return _tmp; }
2122 ciKlass* exact_klass() const { return _exact_klass; }
2123 intptr_t current_klass() const { return _current_klass; }
2124 bool not_null() const { return _not_null; }
2125 bool no_conflict() const { return _no_conflict; }
2126
2127 virtual void emit_code(LIR_Assembler* masm);
2128 virtual LIR_OpProfileType* as_OpProfileType() { return this; }
2129 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
2130 };
2131
2132 // LIR_OpProfileInlineType
2133 class LIR_OpProfileInlineType : public LIR_Op {
2134 friend class LIR_OpVisitState;
2135
2136 private:
2137 LIR_Opr _mdp;
2138 LIR_Opr _obj;
2139 int _flag;
2140 LIR_Opr _tmp;
2141 bool _not_null; // true if we know statically that _obj cannot be null
2142
2143 public:
2144 // Destroys recv
2145 LIR_OpProfileInlineType(LIR_Opr mdp, LIR_Opr obj, int flag, LIR_Opr tmp, bool not_null)
2146 : LIR_Op(lir_profile_inline_type, LIR_OprFact::illegalOpr, nullptr) // no result, no info
2147 , _mdp(mdp)
2148 , _obj(obj)
2149 , _flag(flag)
2150 , _tmp(tmp)
2151 , _not_null(not_null) { }
2152
2153 LIR_Opr mdp() const { return _mdp; }
2154 LIR_Opr obj() const { return _obj; }
2155 int flag() const { return _flag; }
2156 LIR_Opr tmp() const { return _tmp; }
2157 bool not_null() const { return _not_null; }
2158
2159 virtual void emit_code(LIR_Assembler* masm);
2160 virtual LIR_OpProfileInlineType* as_OpProfileInlineType() { return this; }
2161 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
2162 };
2163
2164 class LIR_InsertionBuffer;
2165
2166 //--------------------------------LIR_List---------------------------------------------------
2167 // Maintains a list of LIR instructions (one instance of LIR_List per basic block)
2168 // The LIR instructions are appended by the LIR_List class itself;
2169 //
2170 // Notes:
2171 // - all offsets are(should be) in bytes
2172 // - local positions are specified with an offset, with offset 0 being local 0
2173
2174 class LIR_List: public CompilationResourceObj {
2175 private:
2176 LIR_OpList _operations;
2177
2178 Compilation* _compilation;
2179 #ifndef PRODUCT
2180 BlockBegin* _block;
2181 #endif
2182 #ifdef ASSERT
2183 const char * _file;
2184 int _line;
2185 #endif
2186 #ifdef RISCV
2187 LIR_Opr _cmp_opr1;
2188 LIR_Opr _cmp_opr2;
2189 #endif
2190
2191 public:
2192 void append(LIR_Op* op) {
2193 if (op->source() == nullptr)
2194 op->set_source(_compilation->current_instruction());
2195 #ifndef PRODUCT
2196 if (PrintIRWithLIR) {
2197 _compilation->maybe_print_current_instruction();
2198 op->print(); tty->cr();
2199 }
2200 #endif // PRODUCT
2201
2202 #ifdef RISCV
2203 set_cmp_oprs(op);
2204 // lir_cmp set cmp oprs only on riscv
2205 if (op->code() == lir_cmp) return;
2206 #endif
2207
2208 _operations.append(op);
2209
2210 #ifdef ASSERT
2211 op->verify();
2212 op->set_file_and_line(_file, _line);
2213 _file = nullptr;
2214 _line = 0;
2215 #endif
2216 }
2217
2218 LIR_List(Compilation* compilation, BlockBegin* block = nullptr);
2219
2220 #ifdef ASSERT
2221 void set_file_and_line(const char * file, int line);
2222 #endif
2223
2224 #ifdef RISCV
2225 void set_cmp_oprs(LIR_Op* op);
2226 #endif
2227
2228 //---------- accessors ---------------
2229 LIR_OpList* instructions_list() { return &_operations; }
2230 int length() const { return _operations.length(); }
2231 LIR_Op* at(int i) const { return _operations.at(i); }
2232
2233 NOT_PRODUCT(BlockBegin* block() const { return _block; });
2234
2235 // insert LIR_Ops in buffer to right places in LIR_List
2236 void append(LIR_InsertionBuffer* buffer);
2237
2238 //---------- mutators ---------------
2239 void insert_before(int i, LIR_List* op_list) { _operations.insert_before(i, op_list->instructions_list()); }
2240 void insert_before(int i, LIR_Op* op) { _operations.insert_before(i, op); }
2241 void remove_at(int i) { _operations.remove_at(i); }
2242
2243 //---------- printing -------------
2244 void print_instructions() PRODUCT_RETURN;
2245
2246
2247 //---------- instructions -------------
2248 void call_opt_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2249 address dest, LIR_OprList* arguments,
2250 CodeEmitInfo* info) {
2251 append(new LIR_OpJavaCall(lir_optvirtual_call, method, receiver, result, dest, arguments, info));
2252 }
2253 void call_static(ciMethod* method, LIR_Opr result,
2254 address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
2255 append(new LIR_OpJavaCall(lir_static_call, method, LIR_OprFact::illegalOpr, result, dest, arguments, info));
2256 }
2257 void call_icvirtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2258 address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
2259 append(new LIR_OpJavaCall(lir_icvirtual_call, method, receiver, result, dest, arguments, info));
2260 }
2261 void call_dynamic(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2262 address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
2263 append(new LIR_OpJavaCall(lir_dynamic_call, method, receiver, result, dest, arguments, info));
2264 }
2265
2266 void get_thread(LIR_Opr result) { append(new LIR_Op0(lir_get_thread, result)); }
2267 void membar() { append(new LIR_Op0(lir_membar)); }
2268 void membar_acquire() { append(new LIR_Op0(lir_membar_acquire)); }
2269 void membar_release() { append(new LIR_Op0(lir_membar_release)); }
2270 void membar_loadload() { append(new LIR_Op0(lir_membar_loadload)); }
2271 void membar_storestore() { append(new LIR_Op0(lir_membar_storestore)); }
2272 void membar_loadstore() { append(new LIR_Op0(lir_membar_loadstore)); }
2273 void membar_storeload() { append(new LIR_Op0(lir_membar_storeload)); }
2274
2275 void nop() { append(new LIR_Op0(lir_nop)); }
2276
2277 void std_entry(LIR_Opr receiver) { append(new LIR_Op0(lir_std_entry, receiver)); }
2278 void osr_entry(LIR_Opr osrPointer) { append(new LIR_Op0(lir_osr_entry, osrPointer)); }
2279
2280 void on_spin_wait() { append(new LIR_Op0(lir_on_spin_wait)); }
2281
2282 void branch_destination(Label* lbl) { append(new LIR_OpLabel(lbl)); }
2283
2284 void leal(LIR_Opr from, LIR_Opr result_reg, LIR_PatchCode patch_code = lir_patch_none, CodeEmitInfo* info = nullptr) { append(new LIR_Op1(lir_leal, from, result_reg, T_ILLEGAL, patch_code, info)); }
2285
2286 // result is a stack location for old backend and vreg for UseLinearScan
2287 // stack_loc_temp is an illegal register for old backend
2288 void move(LIR_Opr src, LIR_Opr dst, CodeEmitInfo* info = nullptr) { append(new LIR_Op1(lir_move, src, dst, dst->type(), lir_patch_none, info)); }
2289 void move(LIR_Address* src, LIR_Opr dst, CodeEmitInfo* info = nullptr) { append(new LIR_Op1(lir_move, LIR_OprFact::address(src), dst, src->type(), lir_patch_none, info)); }
2290 void move(LIR_Opr src, LIR_Address* dst, CodeEmitInfo* info = nullptr) { append(new LIR_Op1(lir_move, src, LIR_OprFact::address(dst), dst->type(), lir_patch_none, info)); }
2291 void move_wide(LIR_Address* src, LIR_Opr dst, CodeEmitInfo* info = nullptr) {
2292 if (UseCompressedOops) {
2293 append(new LIR_Op1(lir_move, LIR_OprFact::address(src), dst, src->type(), lir_patch_none, info, lir_move_wide));
2294 } else {
2295 move(src, dst, info);
2296 }
2297 }
2298 void move_wide(LIR_Opr src, LIR_Address* dst, CodeEmitInfo* info = nullptr) {
2299 if (UseCompressedOops) {
2300 append(new LIR_Op1(lir_move, src, LIR_OprFact::address(dst), dst->type(), lir_patch_none, info, lir_move_wide));
2301 } else {
2302 move(src, dst, info);
2303 }
2304 }
2305 void volatile_move(LIR_Opr src, LIR_Opr dst, BasicType type, CodeEmitInfo* info = nullptr, LIR_PatchCode patch_code = lir_patch_none) { append(new LIR_Op1(lir_move, src, dst, type, patch_code, info, lir_move_volatile)); }
2306
2307 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)); }
2308 void oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info);
2309
2310 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)); }
2311 void klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info);
2312
2313 void safepoint(LIR_Opr tmp, CodeEmitInfo* info) { append(new LIR_Op1(lir_safepoint, tmp, info)); }
2314 void return_op(LIR_Opr result) { append(new LIR_OpReturn(result)); }
2315
2316 void convert(Bytecodes::Code code, LIR_Opr left, LIR_Opr dst, ConversionStub* stub = nullptr/*, bool is_32bit = false*/) { append(new LIR_OpConvert(code, left, dst, stub)); }
2317
2318 void logical_and (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_and, left, right, dst)); }
2319 void logical_or (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_or, left, right, dst)); }
2320 void logical_xor (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_xor, left, right, dst)); }
2321
2322 void null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null = false);
2323 void throw_exception(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) {
2324 append(new LIR_Op2(lir_throw, exceptionPC, exceptionOop, LIR_OprFact::illegalOpr, info));
2325 }
2326 void unwind_exception(LIR_Opr exceptionOop) {
2327 append(new LIR_Op1(lir_unwind, exceptionOop));
2328 }
2329
2330 void push(LIR_Opr opr) { append(new LIR_Op1(lir_push, opr)); }
2331 void pop(LIR_Opr reg) { append(new LIR_Op1(lir_pop, reg)); }
2332
2333 void cmp(LIR_Condition condition, LIR_Opr left, LIR_Opr right, CodeEmitInfo* info = nullptr) {
2334 append(new LIR_Op2(lir_cmp, condition, left, right, info));
2335 }
2336 void cmp(LIR_Condition condition, LIR_Opr left, int right, CodeEmitInfo* info = nullptr) {
2337 cmp(condition, left, LIR_OprFact::intConst(right), info);
2338 }
2339
2340 void cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info);
2341 void cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info);
2342
2343 void cmove(LIR_Condition condition, LIR_Opr src1, LIR_Opr src2, LIR_Opr dst, BasicType type,
2344 LIR_Opr cmp_opr1 = LIR_OprFact::illegalOpr, LIR_Opr cmp_opr2 = LIR_OprFact::illegalOpr) {
2345 append(new LIR_Op4(lir_cmove, condition, src1, src2, cmp_opr1, cmp_opr2, dst, type));
2346 }
2347
2348 void cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
2349 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr);
2350 void cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
2351 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr);
2352 void cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
2353 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr);
2354
2355 void abs (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op1(lir_abs , from, to, tmp)); }
2356 void negate(LIR_Opr from, LIR_Opr to, LIR_Opr tmp = LIR_OprFact::illegalOpr) { append(new LIR_Op1(lir_neg, from, to, tmp)); }
2357 void sqrt(LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op1(lir_sqrt, from, to, tmp)); }
2358 void fmad(LIR_Opr from, LIR_Opr from1, LIR_Opr from2, LIR_Opr to) { append(new LIR_Op3(lir_fmad, from, from1, from2, to)); }
2359 void fmaf(LIR_Opr from, LIR_Opr from1, LIR_Opr from2, LIR_Opr to) { append(new LIR_Op3(lir_fmaf, from, from1, from2, to)); }
2360 void f2hf(LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op1(lir_f2hf, from, to, tmp)); }
2361 void hf2f(LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op1(lir_hf2f, from, to, tmp)); }
2362
2363 void add (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_add, left, right, res)); }
2364 void sub (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = nullptr) { append(new LIR_Op2(lir_sub, left, right, res, info)); }
2365 void mul (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_mul, left, right, res)); }
2366 void mul (LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_mul, left, right, res, tmp)); }
2367 void div (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = nullptr) { append(new LIR_Op2(lir_div, left, right, res, info)); }
2368 void div (LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_div, left, right, res, tmp)); }
2369 void rem (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = nullptr) { append(new LIR_Op2(lir_rem, left, right, res, info)); }
2370
2371 void volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2372 void volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code);
2373
2374 void load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info = nullptr, LIR_PatchCode patch_code = lir_patch_none);
2375
2376 void store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2377 void store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2378 void store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info = nullptr, LIR_PatchCode patch_code = lir_patch_none);
2379 void volatile_store_mem_reg(LIR_Opr src, LIR_Address* address, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2380 void volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code);
2381
2382 void idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2383 void idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2384 void irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2385 void irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2386
2387 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);
2388 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, bool zero_array = true, bool always_slow_path = false);
2389
2390 // jump is an unconditional branch
2391 void jump(BlockBegin* block) {
2392 append(new LIR_OpBranch(lir_cond_always, block));
2393 }
2394 void jump(CodeStub* stub) {
2395 append(new LIR_OpBranch(lir_cond_always, stub));
2396 }
2397 void branch(LIR_Condition cond, Label* lbl) {
2398 append(new LIR_OpBranch(cond, lbl));
2399 }
2400 // Should not be used for fp comparisons
2401 void branch(LIR_Condition cond, BlockBegin* block) {
2402 append(new LIR_OpBranch(cond, block));
2403 }
2404 // Should not be used for fp comparisons
2405 void branch(LIR_Condition cond, CodeStub* stub) {
2406 append(new LIR_OpBranch(cond, stub));
2407 }
2408 // Should only be used for fp comparisons
2409 void branch(LIR_Condition cond, BlockBegin* block, BlockBegin* unordered) {
2410 append(new LIR_OpBranch(cond, block, unordered));
2411 }
2412
2413 void shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
2414 void shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
2415 void unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
2416
2417 void shift_left(LIR_Opr value, int count, LIR_Opr dst) { shift_left(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2418 void shift_right(LIR_Opr value, int count, LIR_Opr dst) { shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2419 void unsigned_shift_right(LIR_Opr value, int count, LIR_Opr dst) { unsigned_shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2420
2421 void lcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_cmp_l2i, left, right, dst)); }
2422 void fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less);
2423
2424 void call_runtime_leaf(address routine, LIR_Opr tmp, LIR_Opr result, LIR_OprList* arguments) {
2425 append(new LIR_OpRTCall(routine, tmp, result, arguments));
2426 }
2427
2428 void call_runtime(address routine, LIR_Opr tmp, LIR_Opr result,
2429 LIR_OprList* arguments, CodeEmitInfo* info) {
2430 append(new LIR_OpRTCall(routine, tmp, result, arguments, info));
2431 }
2432
2433 void load_stack_address_monitor(int monitor_ix, LIR_Opr dst) { append(new LIR_Op1(lir_monaddr, LIR_OprFact::intConst(monitor_ix), dst)); }
2434 void unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub);
2435 void lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info, CodeStub* throw_ie_stub=nullptr);
2436
2437 void breakpoint() { append(new LIR_Op0(lir_breakpoint)); }
2438
2439 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)); }
2440
2441 void update_crc32(LIR_Opr crc, LIR_Opr val, LIR_Opr res) { append(new LIR_OpUpdateCRC32(crc, val, res)); }
2442
2443 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);
2444 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);
2445 void check_flat_array(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub);
2446 void check_null_free_array(LIR_Opr array, LIR_Opr tmp);
2447 void substitutability_check(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result,
2448 LIR_Opr tmp1, LIR_Opr tmp2,
2449 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op,
2450 CodeEmitInfo* info, CodeStub* stub);
2451
2452 void checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
2453 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
2454 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
2455 ciMethod* profiled_method, int profiled_bci, bool is_null_free);
2456 // MethodData* profiling
2457 void profile_call(ciMethod* method, int bci, ciMethod* callee, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* cha_klass) {
2458 append(new LIR_OpProfileCall(method, bci, callee, mdo, recv, t1, cha_klass));
2459 }
2460 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) {
2461 append(new LIR_OpProfileType(LIR_OprFact::address(mdp), obj, exact_klass, current_klass, tmp, not_null, no_conflict));
2462 }
2463 void profile_inline_type(LIR_Address* mdp, LIR_Opr obj, int flag, LIR_Opr tmp, bool not_null) {
2464 append(new LIR_OpProfileInlineType(LIR_OprFact::address(mdp), obj, flag, tmp, not_null));
2465 }
2466
2467 void xadd(LIR_Opr src, LIR_Opr add, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_xadd, src, add, res, tmp)); }
2468 void xchg(LIR_Opr src, LIR_Opr set, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_xchg, src, set, res, tmp)); }
2469
2470 void load_klass(LIR_Opr obj, LIR_Opr result, CodeEmitInfo* info) { append(new LIR_OpLoadKlass(obj, result, info)); }
2471
2472 #ifdef ASSERT
2473 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)); }
2474 #endif
2475 };
2476
2477 void print_LIR(BlockList* blocks);
2478
2479 class LIR_InsertionBuffer : public CompilationResourceObj {
2480 private:
2481 LIR_List* _lir; // the lir list where ops of this buffer should be inserted later (null when uninitialized)
2482
2483 // list of insertion points. index and count are stored alternately:
2484 // _index_and_count[i * 2]: the index into lir list where "count" ops should be inserted
2485 // _index_and_count[i * 2 + 1]: the number of ops to be inserted at index
2486 intStack _index_and_count;
2487
2488 // the LIR_Ops to be inserted
2489 LIR_OpList _ops;
2490
2491 void append_new(int index, int count) { _index_and_count.append(index); _index_and_count.append(count); }
2492 void set_index_at(int i, int value) { _index_and_count.at_put((i << 1), value); }
2493 void set_count_at(int i, int value) { _index_and_count.at_put((i << 1) + 1, value); }
2494
2495 #ifdef ASSERT
2496 void verify();
2497 #endif
2498 public:
2499 LIR_InsertionBuffer() : _lir(nullptr), _index_and_count(8), _ops(8) { }
2500
2501 // must be called before using the insertion buffer
2502 void init(LIR_List* lir) { assert(!initialized(), "already initialized"); _lir = lir; _index_and_count.clear(); _ops.clear(); }
2503 bool initialized() const { return _lir != nullptr; }
2504 // called automatically when the buffer is appended to the LIR_List
2505 void finish() { _lir = nullptr; }
2506
2507 // accessors
2508 LIR_List* lir_list() const { return _lir; }
2509 int number_of_insertion_points() const { return _index_and_count.length() >> 1; }
2510 int index_at(int i) const { return _index_and_count.at((i << 1)); }
2511 int count_at(int i) const { return _index_and_count.at((i << 1) + 1); }
2512
2513 int number_of_ops() const { return _ops.length(); }
2514 LIR_Op* op_at(int i) const { return _ops.at(i); }
2515
2516 // append an instruction to the buffer
2517 void append(int index, LIR_Op* op);
2518
2519 // instruction
2520 void move(int index, LIR_Opr src, LIR_Opr dst, CodeEmitInfo* info = nullptr) { append(index, new LIR_Op1(lir_move, src, dst, dst->type(), lir_patch_none, info)); }
2521 };
2522
2523
2524 //
2525 // LIR_OpVisitState is used for manipulating LIR_Ops in an abstract way.
2526 // Calling a LIR_Op's visit function with a LIR_OpVisitState causes
2527 // information about the input, output and temporaries used by the
2528 // op to be recorded. It also records whether the op has call semantics
2529 // and also records all the CodeEmitInfos used by this op.
2530 //
2531
2532
2533 class LIR_OpVisitState: public StackObj {
2534 public:
2535 typedef enum { inputMode, firstMode = inputMode, tempMode, outputMode, numModes, invalidMode = -1 } OprMode;
2536
2537 enum {
2538 maxNumberOfOperands = 21,
2539 maxNumberOfInfos = 4
2540 };
2541
2542 private:
2543 LIR_Op* _op;
2544
2545 // optimization: the operands and infos are not stored in a variable-length
2546 // list, but in a fixed-size array to save time of size checks and resizing
2547 int _oprs_len[numModes];
2548 LIR_Opr* _oprs_new[numModes][maxNumberOfOperands];
2549 int _info_len;
2550 CodeEmitInfo* _info_new[maxNumberOfInfos];
2551
2552 bool _has_call;
2553 bool _has_slow_case;
2554
2555
2556 // only include register operands
2557 // addresses are decomposed to the base and index registers
2558 // constants and stack operands are ignored
2559 void append(LIR_Opr& opr, OprMode mode) {
2560 assert(opr->is_valid(), "should not call this otherwise");
2561 assert(mode >= 0 && mode < numModes, "bad mode");
2562
2563 if (opr->is_register()) {
2564 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
2565 _oprs_new[mode][_oprs_len[mode]++] = &opr;
2566
2567 } else if (opr->is_pointer()) {
2568 LIR_Address* address = opr->as_address_ptr();
2569 if (address != nullptr) {
2570 // special handling for addresses: add base and index register of the address
2571 // both are always input operands or temp if we want to extend
2572 // their liveness!
2573 if (mode == outputMode) {
2574 mode = inputMode;
2575 }
2576 assert (mode == inputMode || mode == tempMode, "input or temp only for addresses");
2577 if (address->_base->is_valid()) {
2578 assert(address->_base->is_register(), "must be");
2579 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
2580 _oprs_new[mode][_oprs_len[mode]++] = &address->_base;
2581 }
2582 if (address->_index->is_valid()) {
2583 assert(address->_index->is_register(), "must be");
2584 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
2585 _oprs_new[mode][_oprs_len[mode]++] = &address->_index;
2586 }
2587
2588 } else {
2589 assert(opr->is_constant(), "constant operands are not processed");
2590 }
2591 } else {
2592 assert(opr->is_stack(), "stack operands are not processed");
2593 }
2594 }
2595
2596 void append(CodeEmitInfo* info) {
2597 assert(info != nullptr, "should not call this otherwise");
2598 assert(_info_len < maxNumberOfInfos, "array overflow");
2599 _info_new[_info_len++] = info;
2600 }
2601
2602 public:
2603 LIR_OpVisitState() { reset(); }
2604
2605 LIR_Op* op() const { return _op; }
2606 void set_op(LIR_Op* op) { reset(); _op = op; }
2607
2608 bool has_call() const { return _has_call; }
2609 bool has_slow_case() const { return _has_slow_case; }
2610
2611 void reset() {
2612 _op = nullptr;
2613 _has_call = false;
2614 _has_slow_case = false;
2615
2616 _oprs_len[inputMode] = 0;
2617 _oprs_len[tempMode] = 0;
2618 _oprs_len[outputMode] = 0;
2619 _info_len = 0;
2620 }
2621
2622
2623 int opr_count(OprMode mode) const {
2624 assert(mode >= 0 && mode < numModes, "bad mode");
2625 return _oprs_len[mode];
2626 }
2627
2628 LIR_Opr opr_at(OprMode mode, int index) const {
2629 assert(mode >= 0 && mode < numModes, "bad mode");
2630 assert(index >= 0 && index < _oprs_len[mode], "index out of bound");
2631 return *_oprs_new[mode][index];
2632 }
2633
2634 void set_opr_at(OprMode mode, int index, LIR_Opr opr) const {
2635 assert(mode >= 0 && mode < numModes, "bad mode");
2636 assert(index >= 0 && index < _oprs_len[mode], "index out of bound");
2637 *_oprs_new[mode][index] = opr;
2638 }
2639
2640 int info_count() const {
2641 return _info_len;
2642 }
2643
2644 CodeEmitInfo* info_at(int index) const {
2645 assert(index < _info_len, "index out of bounds");
2646 return _info_new[index];
2647 }
2648
2649 XHandlers* all_xhandler();
2650
2651 // collects all register operands of the instruction
2652 void visit(LIR_Op* op);
2653
2654 #ifdef ASSERT
2655 // check that an operation has no operands
2656 bool no_operands(LIR_Op* op);
2657 #endif
2658
2659 // LIR_Op visitor functions use these to fill in the state
2660 void do_input(LIR_Opr& opr) { append(opr, LIR_OpVisitState::inputMode); }
2661 void do_output(LIR_Opr& opr) { append(opr, LIR_OpVisitState::outputMode); }
2662 void do_temp(LIR_Opr& opr) { append(opr, LIR_OpVisitState::tempMode); }
2663 void do_info(CodeEmitInfo* info) { append(info); }
2664
2665 void do_stub(CodeStub* stub);
2666 void do_call() { _has_call = true; }
2667 void do_slow_case() { _has_slow_case = true; }
2668 void do_slow_case(CodeEmitInfo* info) {
2669 _has_slow_case = true;
2670 append(info);
2671 }
2672 };
2673
2674
2675 inline LIR_Opr LIR_Opr::illegalOpr() { return LIR_OprFact::illegalOpr; };
2676
2677 inline LIR_Opr LIR_Opr::nullOpr() { return LIR_OprFact::nullOpr; };
2678
2679 #endif // SHARE_C1_C1_LIR_HPP