1 /*
2 * Copyright (c) 2000, 2021, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_C1_C1_LIR_HPP
26 #define SHARE_C1_C1_LIR_HPP
27
28 #include "c1/c1_Defs.hpp"
29 #include "c1/c1_ValueType.hpp"
30 #include "oops/method.hpp"
31 #include "utilities/globalDefinitions.hpp"
32
33 class BlockBegin;
34 class BlockList;
35 class LIR_Assembler;
36 class CodeEmitInfo;
37 class CodeStub;
38 class CodeStubList;
39 class C1SafepointPollStub;
40 class ArrayCopyStub;
41 class LIR_Op;
42 class ciType;
43 class ValueType;
44 class LIR_OpVisitState;
45 class FpuStackSim;
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 NULL; }
72 virtual LIR_Address* as_address() { return NULL; }
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 opr-type opr-kind
202 // +--------------+-------+-------+
203 // [max...........|7 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 , is_fpu_stack_offset_bits = 1 // used in assertion checking on x86 for FPU stack slot allocation
239 , non_data_bits = pointer_bits + kind_bits + type_bits + size_bits + destroys_bits + virtual_bits
240 + is_xmm_bits + last_use_bits + is_fpu_stack_offset_bits
241 , data_bits = BitsPerInt - non_data_bits
242 , reg_bits = data_bits / 2 // for two registers in one value encoding
243 };
244
245 enum OprShift {
246 kind_shift = 0
247 , type_shift = kind_shift + kind_bits
248 , size_shift = type_shift + type_bits
249 , destroys_shift = size_shift + size_bits
250 , last_use_shift = destroys_shift + destroys_bits
251 , is_fpu_stack_offset_shift = last_use_shift + last_use_bits
252 , virtual_shift = is_fpu_stack_offset_shift + is_fpu_stack_offset_bits
253 , is_xmm_shift = virtual_shift + virtual_bits
254 , data_shift = is_xmm_shift + is_xmm_bits
255 , reg1_shift = data_shift
256 , reg2_shift = data_shift + reg_bits
257
258 };
259
260 enum OprSize {
261 single_size = 0 << size_shift
262 , double_size = 1 << size_shift
263 };
264
265 enum OprMask {
266 kind_mask = right_n_bits(kind_bits)
267 , type_mask = right_n_bits(type_bits) << type_shift
268 , size_mask = right_n_bits(size_bits) << size_shift
269 , last_use_mask = right_n_bits(last_use_bits) << last_use_shift
270 , is_fpu_stack_offset_mask = right_n_bits(is_fpu_stack_offset_bits) << is_fpu_stack_offset_shift
271 , virtual_mask = right_n_bits(virtual_bits) << virtual_shift
272 , is_xmm_mask = right_n_bits(is_xmm_bits) << is_xmm_shift
273 , pointer_mask = right_n_bits(pointer_bits)
274 , lower_reg_mask = right_n_bits(reg_bits)
275 , no_type_mask = (int)(~(type_mask | last_use_mask | is_fpu_stack_offset_mask))
276 };
277
278 uintptr_t data() const { return value() >> data_shift; }
279 int lo_reg_half() const { return data() & lower_reg_mask; }
280 int hi_reg_half() const { return (data() >> reg_bits) & lower_reg_mask; }
281 OprKind kind_field() const { return (OprKind)(value() & kind_mask); }
282 OprSize size_field() const { return (OprSize)(value() & size_mask); }
283
284 static char type_char(BasicType t);
285
286 public:
287 LIR_Opr() : _value(0) {}
288 LIR_Opr(intptr_t val) : _value(val) {}
289 LIR_Opr(LIR_OprPtr *val) : _value(reinterpret_cast<intptr_t>(val)) {}
290 bool operator==(const LIR_Opr &other) const { return _value == other._value; }
291 bool operator!=(const LIR_Opr &other) const { return _value != other._value; }
292 explicit operator bool() const { return _value != 0; }
293
294 // UGLY HACK: make this value object look like a pointer (to itself). This
295 // operator overload should be removed, and all callers updated from
296 // `opr->fn()` to `opr.fn()`.
297 const LIR_Opr* operator->() const { return this; }
298 LIR_Opr* operator->() { return this; }
299
300 enum {
301 vreg_base = ConcreteRegisterImpl::number_of_registers,
302 vreg_max = (1 << data_bits) - 1
303 };
304
305 static inline LIR_Opr illegalOpr();
306 static inline LIR_Opr nullOpr();
307
308 enum OprType {
309 unknown_type = 0 << type_shift // means: not set (catch uninitialized types)
310 , int_type = 1 << type_shift
311 , long_type = 2 << type_shift
312 , object_type = 3 << type_shift
313 , address_type = 4 << type_shift
314 , float_type = 5 << type_shift
315 , double_type = 6 << type_shift
316 , metadata_type = 7 << type_shift
317 };
318 friend OprType as_OprType(BasicType t);
319 friend BasicType as_BasicType(OprType t);
320
321 OprType type_field_valid() const { assert(is_register() || is_stack(), "should not be called otherwise"); return (OprType)(value() & type_mask); }
322 OprType type_field() const { return is_illegal() ? unknown_type : (OprType)(value() & type_mask); }
323
324 static OprSize size_for(BasicType t) {
325 switch (t) {
326 case T_LONG:
327 case T_DOUBLE:
328 return double_size;
329 break;
330
331 case T_FLOAT:
332 case T_BOOLEAN:
333 case T_CHAR:
334 case T_BYTE:
335 case T_SHORT:
336 case T_INT:
337 case T_ADDRESS:
338 case T_OBJECT:
339 case T_PRIMITIVE_OBJECT:
340 case T_ARRAY:
341 case T_METADATA:
342 return single_size;
343 break;
344
345 default:
346 ShouldNotReachHere();
347 return single_size;
348 }
349 }
350
351
352 void validate_type() const PRODUCT_RETURN;
353
354 BasicType type() const {
355 if (is_pointer()) {
356 return pointer()->type();
357 }
358 return as_BasicType(type_field());
359 }
360
361
362 ValueType* value_type() const { return as_ValueType(type()); }
363
364 char type_char() const { return type_char((is_pointer()) ? pointer()->type() : type()); }
365
366 bool is_equal(LIR_Opr opr) const { return *this == opr; }
367 // checks whether types are same
368 bool is_same_type(LIR_Opr opr) const {
369 assert(type_field() != unknown_type &&
370 opr->type_field() != unknown_type, "shouldn't see unknown_type");
371 return type_field() == opr->type_field();
372 }
373 bool is_same_register(LIR_Opr opr) {
374 return (is_register() && opr->is_register() &&
375 kind_field() == opr->kind_field() &&
376 (value() & no_type_mask) == (opr->value() & no_type_mask));
377 }
378
379 bool is_pointer() const { return check_value_mask(pointer_mask, pointer_value); }
380 bool is_illegal() const { return kind_field() == illegal_value; }
381 bool is_valid() const { return kind_field() != illegal_value; }
382
383 bool is_register() const { return is_cpu_register() || is_fpu_register(); }
384 bool is_virtual() const { return is_virtual_cpu() || is_virtual_fpu(); }
385
386 bool is_constant() const { return is_pointer() && pointer()->as_constant() != NULL; }
387 bool is_address() const { return is_pointer() && pointer()->as_address() != NULL; }
388
389 bool is_float_kind() const { return is_pointer() ? pointer()->is_float_kind() : (kind_field() == fpu_register); }
390 bool is_oop() const;
391
392 // semantic for fpu- and xmm-registers:
393 // * is_float and is_double return true for xmm_registers
394 // (so is_single_fpu and is_single_xmm are true)
395 // * So you must always check for is_???_xmm prior to is_???_fpu to
396 // distinguish between fpu- and xmm-registers
397
398 bool is_stack() const { validate_type(); return check_value_mask(kind_mask, stack_value); }
399 bool is_single_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | single_size); }
400 bool is_double_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | double_size); }
401
402 bool is_cpu_register() const { validate_type(); return check_value_mask(kind_mask, cpu_register); }
403 bool is_virtual_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register | virtual_mask); }
404 bool is_fixed_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register); }
405 bool is_single_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | single_size); }
406 bool is_double_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | double_size); }
407
408 bool is_fpu_register() const { validate_type(); return check_value_mask(kind_mask, fpu_register); }
409 bool is_virtual_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register | virtual_mask); }
410 bool is_fixed_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register); }
411 bool is_single_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | single_size); }
412 bool is_double_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | double_size); }
413
414 bool is_xmm_register() const { validate_type(); return check_value_mask(kind_mask | is_xmm_mask, fpu_register | is_xmm_mask); }
415 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); }
416 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); }
417
418 // fast accessor functions for special bits that do not work for pointers
419 // (in this functions, the check for is_pointer() is omitted)
420 bool is_single_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, single_size); }
421 bool is_double_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, double_size); }
422 bool is_virtual_register() const { assert(is_register(), "type check"); return check_value_mask(virtual_mask, virtual_mask); }
423 bool is_oop_register() const { assert(is_register() || is_stack(), "type check"); return type_field_valid() == object_type; }
424 BasicType type_register() const { assert(is_register() || is_stack(), "type check"); return as_BasicType(type_field_valid()); }
425
426 bool is_last_use() const { assert(is_register(), "only works for registers"); return (value() & last_use_mask) != 0; }
427 bool is_fpu_stack_offset() const { assert(is_register(), "only works for registers"); return (value() & is_fpu_stack_offset_mask) != 0; }
428 LIR_Opr make_last_use() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | last_use_mask); }
429 LIR_Opr make_fpu_stack_offset() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | is_fpu_stack_offset_mask); }
430
431
432 int single_stack_ix() const { assert(is_single_stack() && !is_virtual(), "type check"); return (int)data(); }
433 int double_stack_ix() const { assert(is_double_stack() && !is_virtual(), "type check"); return (int)data(); }
434 RegNr cpu_regnr() const { assert(is_single_cpu() && !is_virtual(), "type check"); return (RegNr)data(); }
435 RegNr cpu_regnrLo() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
436 RegNr cpu_regnrHi() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
437 RegNr fpu_regnr() const { assert(is_single_fpu() && !is_virtual(), "type check"); return (RegNr)data(); }
438 RegNr fpu_regnrLo() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
439 RegNr fpu_regnrHi() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
440 RegNr xmm_regnr() const { assert(is_single_xmm() && !is_virtual(), "type check"); return (RegNr)data(); }
441 RegNr xmm_regnrLo() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
442 RegNr xmm_regnrHi() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
443 int vreg_number() const { assert(is_virtual(), "type check"); return (RegNr)data(); }
444
445 LIR_OprPtr* pointer() const { assert(_value != 0 && is_pointer(), "nullness and type check"); return (LIR_OprPtr*)_value; }
446 LIR_Const* as_constant_ptr() const { return pointer()->as_constant(); }
447 LIR_Address* as_address_ptr() const { return pointer()->as_address(); }
448
449 Register as_register() const;
450 Register as_register_lo() const;
451 Register as_register_hi() const;
452
453 Register as_pointer_register() {
454 #ifdef _LP64
455 if (is_double_cpu()) {
456 assert(as_register_lo() == as_register_hi(), "should be a single register");
457 return as_register_lo();
458 }
459 #endif
460 return as_register();
461 }
462
463 FloatRegister as_float_reg () const;
464 FloatRegister as_double_reg () const;
465 #ifdef X86
466 XMMRegister as_xmm_float_reg () const;
467 XMMRegister as_xmm_double_reg() const;
468 // for compatibility with RInfo
469 int fpu() const { return lo_reg_half(); }
470 #endif
471
472 jint as_jint() const { return as_constant_ptr()->as_jint(); }
473 jlong as_jlong() const { return as_constant_ptr()->as_jlong(); }
474 jfloat as_jfloat() const { return as_constant_ptr()->as_jfloat(); }
475 jdouble as_jdouble() const { return as_constant_ptr()->as_jdouble(); }
476 jobject as_jobject() const { return as_constant_ptr()->as_jobject(); }
477
478 void print() const PRODUCT_RETURN;
479 void print(outputStream* out) const PRODUCT_RETURN;
480 };
481
482 inline LIR_Opr::OprType as_OprType(BasicType type) {
483 switch (type) {
484 case T_INT: return LIR_Opr::int_type;
485 case T_LONG: return LIR_Opr::long_type;
486 case T_FLOAT: return LIR_Opr::float_type;
487 case T_DOUBLE: return LIR_Opr::double_type;
488 case T_OBJECT:
489 case T_PRIMITIVE_OBJECT:
490 case T_ARRAY: return LIR_Opr::object_type;
491 case T_ADDRESS: return LIR_Opr::address_type;
492 case T_METADATA: return LIR_Opr::metadata_type;
493 case T_ILLEGAL: // fall through
494 default: ShouldNotReachHere(); return LIR_Opr::unknown_type;
495 }
496 }
497
498 inline BasicType as_BasicType(LIR_Opr::OprType t) {
499 switch (t) {
500 case LIR_Opr::int_type: return T_INT;
501 case LIR_Opr::long_type: return T_LONG;
502 case LIR_Opr::float_type: return T_FLOAT;
503 case LIR_Opr::double_type: return T_DOUBLE;
504 case LIR_Opr::object_type: return T_OBJECT;
505 case LIR_Opr::address_type: return T_ADDRESS;
506 case LIR_Opr::metadata_type:return T_METADATA;
507 case LIR_Opr::unknown_type: // fall through
508 default: ShouldNotReachHere(); return T_ILLEGAL;
509 }
510 }
511
512
513 // LIR_Address
514 class LIR_Address: public LIR_OprPtr {
515 friend class LIR_OpVisitState;
516
517 public:
518 // NOTE: currently these must be the log2 of the scale factor (and
519 // must also be equivalent to the ScaleFactor enum in
520 // assembler_i486.hpp)
521 enum Scale {
522 times_1 = 0,
523 times_2 = 1,
524 times_4 = 2,
525 times_8 = 3
526 };
527
528 private:
529 LIR_Opr _base;
530 LIR_Opr _index;
531 Scale _scale;
532 intx _disp;
533 BasicType _type;
534
535 public:
536 LIR_Address(LIR_Opr base, LIR_Opr index, BasicType type):
537 _base(base)
538 , _index(index)
539 , _scale(times_1)
540 , _disp(0)
541 , _type(type) { verify(); }
542
543 LIR_Address(LIR_Opr base, intx disp, BasicType type):
544 _base(base)
545 , _index(LIR_Opr::illegalOpr())
546 , _scale(times_1)
547 , _disp(disp)
548 , _type(type) { verify(); }
549
550 LIR_Address(LIR_Opr base, BasicType type):
551 _base(base)
552 , _index(LIR_Opr::illegalOpr())
553 , _scale(times_1)
554 , _disp(0)
555 , _type(type) { verify(); }
556
557 LIR_Address(LIR_Opr base, LIR_Opr index, intx disp, BasicType type):
558 _base(base)
559 , _index(index)
560 , _scale(times_1)
561 , _disp(disp)
562 , _type(type) { verify(); }
563
564 LIR_Address(LIR_Opr base, LIR_Opr index, Scale scale, intx disp, BasicType type):
565 _base(base)
566 , _index(index)
567 , _scale(scale)
568 , _disp(disp)
569 , _type(type) { verify(); }
570
571 LIR_Opr base() const { return _base; }
572 LIR_Opr index() const { return _index; }
573 Scale scale() const { return _scale; }
574 intx disp() const { return _disp; }
575
576 bool equals(LIR_Address* other) const { return base() == other->base() && index() == other->index() && disp() == other->disp() && scale() == other->scale(); }
577
578 virtual LIR_Address* as_address() { return this; }
579 virtual BasicType type() const { return _type; }
580 virtual void print_value_on(outputStream* out) const PRODUCT_RETURN;
581
582 void verify() const PRODUCT_RETURN;
583
584 static Scale scale(BasicType type);
585 };
586
587
588 // operand factory
589 class LIR_OprFact: public AllStatic {
590 public:
591
592 static LIR_Opr illegalOpr;
593 static LIR_Opr nullOpr;
594
595 static LIR_Opr single_cpu(int reg) {
596 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) |
597 LIR_Opr::int_type |
598 LIR_Opr::cpu_register |
599 LIR_Opr::single_size);
600 }
601 static LIR_Opr single_cpu_oop(int reg) {
602 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) |
603 LIR_Opr::object_type |
604 LIR_Opr::cpu_register |
605 LIR_Opr::single_size);
606 }
607 static LIR_Opr single_cpu_address(int reg) {
608 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) |
609 LIR_Opr::address_type |
610 LIR_Opr::cpu_register |
611 LIR_Opr::single_size);
612 }
613 static LIR_Opr single_cpu_metadata(int reg) {
614 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) |
615 LIR_Opr::metadata_type |
616 LIR_Opr::cpu_register |
617 LIR_Opr::single_size);
618 }
619 static LIR_Opr double_cpu(int reg1, int reg2) {
620 LP64_ONLY(assert(reg1 == reg2, "must be identical"));
621 return (LIR_Opr)(intptr_t)((reg1 << LIR_Opr::reg1_shift) |
622 (reg2 << LIR_Opr::reg2_shift) |
623 LIR_Opr::long_type |
624 LIR_Opr::cpu_register |
625 LIR_Opr::double_size);
626 }
627
628 static LIR_Opr single_fpu(int reg) {
629 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) |
630 LIR_Opr::float_type |
631 LIR_Opr::fpu_register |
632 LIR_Opr::single_size);
633 }
634
635 // Platform dependant.
636 static LIR_Opr double_fpu(int reg1, int reg2 = -1 /*fnoreg*/);
637
638 #ifdef ARM32
639 static LIR_Opr single_softfp(int reg) {
640 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) |
641 LIR_Opr::float_type |
642 LIR_Opr::cpu_register |
643 LIR_Opr::single_size);
644 }
645 static LIR_Opr double_softfp(int reg1, int reg2) {
646 return (LIR_Opr)(intptr_t)((reg1 << LIR_Opr::reg1_shift) |
647 (reg2 << LIR_Opr::reg2_shift) |
648 LIR_Opr::double_type |
649 LIR_Opr::cpu_register |
650 LIR_Opr::double_size);
651 }
652 #endif // ARM32
653
654 #if defined(X86)
655 static LIR_Opr single_xmm(int reg) {
656 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) |
657 LIR_Opr::float_type |
658 LIR_Opr::fpu_register |
659 LIR_Opr::single_size |
660 LIR_Opr::is_xmm_mask);
661 }
662 static LIR_Opr double_xmm(int reg) {
663 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) |
664 (reg << LIR_Opr::reg2_shift) |
665 LIR_Opr::double_type |
666 LIR_Opr::fpu_register |
667 LIR_Opr::double_size |
668 LIR_Opr::is_xmm_mask);
669 }
670 #endif // X86
671
672 static LIR_Opr virtual_register(int index, BasicType type) {
673 if (index > LIR_Opr::vreg_max) {
674 // Running out of virtual registers. Caller should bailout.
675 return illegalOpr;
676 }
677
678 LIR_Opr res;
679 switch (type) {
680 case T_OBJECT: // fall through
681 case T_PRIMITIVE_OBJECT: // fall through
682 case T_ARRAY:
683 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
684 LIR_Opr::object_type |
685 LIR_Opr::cpu_register |
686 LIR_Opr::single_size |
687 LIR_Opr::virtual_mask);
688 break;
689
690 case T_METADATA:
691 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
692 LIR_Opr::metadata_type|
693 LIR_Opr::cpu_register |
694 LIR_Opr::single_size |
695 LIR_Opr::virtual_mask);
696 break;
697
698 case T_INT:
699 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
700 LIR_Opr::int_type |
701 LIR_Opr::cpu_register |
702 LIR_Opr::single_size |
703 LIR_Opr::virtual_mask);
704 break;
705
706 case T_ADDRESS:
707 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
708 LIR_Opr::address_type |
709 LIR_Opr::cpu_register |
710 LIR_Opr::single_size |
711 LIR_Opr::virtual_mask);
712 break;
713
714 case T_LONG:
715 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
716 LIR_Opr::long_type |
717 LIR_Opr::cpu_register |
718 LIR_Opr::double_size |
719 LIR_Opr::virtual_mask);
720 break;
721
722 #ifdef __SOFTFP__
723 case T_FLOAT:
724 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
725 LIR_Opr::float_type |
726 LIR_Opr::cpu_register |
727 LIR_Opr::single_size |
728 LIR_Opr::virtual_mask);
729 break;
730 case T_DOUBLE:
731 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
732 LIR_Opr::double_type |
733 LIR_Opr::cpu_register |
734 LIR_Opr::double_size |
735 LIR_Opr::virtual_mask);
736 break;
737 #else // __SOFTFP__
738 case T_FLOAT:
739 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
740 LIR_Opr::float_type |
741 LIR_Opr::fpu_register |
742 LIR_Opr::single_size |
743 LIR_Opr::virtual_mask);
744 break;
745
746 case
747 T_DOUBLE: res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
748 LIR_Opr::double_type |
749 LIR_Opr::fpu_register |
750 LIR_Opr::double_size |
751 LIR_Opr::virtual_mask);
752 break;
753 #endif // __SOFTFP__
754 default: ShouldNotReachHere(); res = illegalOpr;
755 }
756
757 #ifdef ASSERT
758 res->validate_type();
759 assert(res->vreg_number() == index, "conversion check");
760 assert(index >= LIR_Opr::vreg_base, "must start at vreg_base");
761 assert(index <= (max_jint >> LIR_Opr::data_shift), "index is too big");
762
763 // old-style calculation; check if old and new method are equal
764 LIR_Opr::OprType t = as_OprType(type);
765 #ifdef __SOFTFP__
766 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
767 t |
768 LIR_Opr::cpu_register |
769 LIR_Opr::size_for(type) | LIR_Opr::virtual_mask);
770 #else // __SOFTFP__
771 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) | t |
772 ((type == T_FLOAT || type == T_DOUBLE) ? LIR_Opr::fpu_register : LIR_Opr::cpu_register) |
773 LIR_Opr::size_for(type) | LIR_Opr::virtual_mask);
774 assert(res == old_res, "old and new method not equal");
775 #endif // __SOFTFP__
776 #endif // ASSERT
777
778 return res;
779 }
780
781 // 'index' is computed by FrameMap::local_stack_pos(index); do not use other parameters as
782 // the index is platform independent; a double stack useing indeces 2 and 3 has always
783 // index 2.
784 static LIR_Opr stack(int index, BasicType type) {
785 LIR_Opr res;
786 switch (type) {
787 case T_PRIMITIVE_OBJECT: // fall through
788 case T_OBJECT: // fall through
789 case T_ARRAY:
790 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
791 LIR_Opr::object_type |
792 LIR_Opr::stack_value |
793 LIR_Opr::single_size);
794 break;
795
796 case T_METADATA:
797 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
798 LIR_Opr::metadata_type |
799 LIR_Opr::stack_value |
800 LIR_Opr::single_size);
801 break;
802 case T_INT:
803 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
804 LIR_Opr::int_type |
805 LIR_Opr::stack_value |
806 LIR_Opr::single_size);
807 break;
808
809 case T_ADDRESS:
810 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
811 LIR_Opr::address_type |
812 LIR_Opr::stack_value |
813 LIR_Opr::single_size);
814 break;
815
816 case T_LONG:
817 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
818 LIR_Opr::long_type |
819 LIR_Opr::stack_value |
820 LIR_Opr::double_size);
821 break;
822
823 case T_FLOAT:
824 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
825 LIR_Opr::float_type |
826 LIR_Opr::stack_value |
827 LIR_Opr::single_size);
828 break;
829 case T_DOUBLE:
830 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
831 LIR_Opr::double_type |
832 LIR_Opr::stack_value |
833 LIR_Opr::double_size);
834 break;
835
836 default: ShouldNotReachHere(); res = illegalOpr;
837 }
838
839 #ifdef ASSERT
840 assert(index >= 0, "index must be positive");
841 assert(index <= (max_jint >> LIR_Opr::data_shift), "index is too big");
842
843 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
844 LIR_Opr::stack_value |
845 as_OprType(type) |
846 LIR_Opr::size_for(type));
847 assert(res == old_res, "old and new method not equal");
848 #endif
849
850 return res;
851 }
852
853 static LIR_Opr intConst(jint i) { return (LIR_Opr)(new LIR_Const(i)); }
854 static LIR_Opr longConst(jlong l) { return (LIR_Opr)(new LIR_Const(l)); }
855 static LIR_Opr floatConst(jfloat f) { return (LIR_Opr)(new LIR_Const(f)); }
856 static LIR_Opr doubleConst(jdouble d) { return (LIR_Opr)(new LIR_Const(d)); }
857 static LIR_Opr oopConst(jobject o) { return (LIR_Opr)(new LIR_Const(o)); }
858 static LIR_Opr address(LIR_Address* a) { return (LIR_Opr)a; }
859 static LIR_Opr intptrConst(void* p) { return (LIR_Opr)(new LIR_Const(p)); }
860 static LIR_Opr intptrConst(intptr_t v) { return (LIR_Opr)(new LIR_Const((void*)v)); }
861 static LIR_Opr illegal() { return (LIR_Opr)-1; }
862 static LIR_Opr addressConst(jint i) { return (LIR_Opr)(new LIR_Const(i, true)); }
863 static LIR_Opr metadataConst(Metadata* m) { return (LIR_Opr)(new LIR_Const(m)); }
864
865 static LIR_Opr value_type(ValueType* type);
866 };
867
868
869 //-------------------------------------------------------------------------------
870 // LIR Instructions
871 //-------------------------------------------------------------------------------
872 //
873 // Note:
874 // - every instruction has a result operand
875 // - every instruction has an CodeEmitInfo operand (can be revisited later)
876 // - every instruction has a LIR_OpCode operand
877 // - LIR_OpN, means an instruction that has N input operands
878 //
879 // class hierarchy:
880 //
881 class LIR_Op;
882 class LIR_Op0;
883 class LIR_OpLabel;
884 class LIR_Op1;
885 class LIR_OpBranch;
886 class LIR_OpConvert;
887 class LIR_OpAllocObj;
888 class LIR_OpReturn;
889 class LIR_OpRoundFP;
890 class LIR_Op2;
891 class LIR_OpDelay;
892 class LIR_Op3;
893 class LIR_OpAllocArray;
894 class LIR_OpCall;
895 class LIR_OpJavaCall;
896 class LIR_OpRTCall;
897 class LIR_OpArrayCopy;
898 class LIR_OpUpdateCRC32;
899 class LIR_OpLock;
900 class LIR_OpTypeCheck;
901 class LIR_OpFlattenedArrayCheck;
902 class LIR_OpNullFreeArrayCheck;
903 class LIR_OpSubstitutabilityCheck;
904 class LIR_OpCompareAndSwap;
905 class LIR_OpLoadKlass;
906 class LIR_OpProfileCall;
907 class LIR_OpProfileType;
908 class LIR_OpProfileInlineType;
909 #ifdef ASSERT
910 class LIR_OpAssert;
911 #endif
912
913 // LIR operation codes
914 enum LIR_Code {
915 lir_none
916 , begin_op0
917 , lir_label
918 , lir_nop
919 , lir_std_entry
920 , lir_osr_entry
921 , lir_fpop_raw
922 , lir_breakpoint
923 , lir_rtcall
924 , lir_membar
925 , lir_membar_acquire
926 , lir_membar_release
927 , lir_membar_loadload
928 , lir_membar_storestore
929 , lir_membar_loadstore
930 , lir_membar_storeload
931 , lir_get_thread
932 , lir_on_spin_wait
933 , lir_check_orig_pc
934 , end_op0
935 , begin_op1
936 , lir_fxch
937 , lir_fld
938 , lir_push
939 , lir_pop
940 , lir_null_check
941 , lir_return
942 , lir_leal
943 , lir_branch
944 , lir_cond_float_branch
945 , lir_move
946 , lir_convert
947 , lir_alloc_object
948 , lir_monaddr
949 , lir_roundfp
950 , lir_safepoint
951 , lir_unwind
952 , lir_load_klass
953 , end_op1
954 , begin_op2
955 , lir_cmp
956 , lir_cmp_l2i
957 , lir_ucmp_fd2i
958 , lir_cmp_fd2i
959 , lir_cmove
960 , lir_add
961 , lir_sub
962 , lir_mul
963 , lir_div
964 , lir_rem
965 , lir_sqrt
966 , lir_abs
967 , lir_neg
968 , lir_tan
969 , lir_log10
970 , lir_logic_and
971 , lir_logic_or
972 , lir_logic_xor
973 , lir_shl
974 , lir_shr
975 , lir_ushr
976 , lir_alloc_array
977 , lir_throw
978 , lir_xadd
979 , lir_xchg
980 , end_op2
981 , begin_op3
982 , lir_idiv
983 , lir_irem
984 , lir_fmad
985 , lir_fmaf
986 , end_op3
987 , begin_opJavaCall
988 , lir_static_call
989 , lir_optvirtual_call
990 , lir_icvirtual_call
991 , lir_dynamic_call
992 , end_opJavaCall
993 , begin_opArrayCopy
994 , lir_arraycopy
995 , end_opArrayCopy
996 , begin_opUpdateCRC32
997 , lir_updatecrc32
998 , end_opUpdateCRC32
999 , begin_opLock
1000 , lir_lock
1001 , lir_unlock
1002 , end_opLock
1003 , begin_delay_slot
1004 , lir_delay_slot
1005 , end_delay_slot
1006 , begin_opTypeCheck
1007 , lir_instanceof
1008 , lir_checkcast
1009 , lir_store_check
1010 , end_opTypeCheck
1011 , begin_opFlattenedArrayCheck
1012 , lir_flattened_array_check
1013 , end_opFlattenedArrayCheck
1014 , begin_opNullFreeArrayCheck
1015 , lir_null_free_array_check
1016 , end_opNullFreeArrayCheck
1017 , begin_opSubstitutabilityCheck
1018 , lir_substitutability_check
1019 , end_opSubstitutabilityCheck
1020 , begin_opCompareAndSwap
1021 , lir_cas_long
1022 , lir_cas_obj
1023 , lir_cas_int
1024 , end_opCompareAndSwap
1025 , begin_opMDOProfile
1026 , lir_profile_call
1027 , lir_profile_type
1028 , lir_profile_inline_type
1029 , end_opMDOProfile
1030 , begin_opAssert
1031 , lir_assert
1032 , end_opAssert
1033 };
1034
1035
1036 enum LIR_Condition {
1037 lir_cond_equal
1038 , lir_cond_notEqual
1039 , lir_cond_less
1040 , lir_cond_lessEqual
1041 , lir_cond_greaterEqual
1042 , lir_cond_greater
1043 , lir_cond_belowEqual
1044 , lir_cond_aboveEqual
1045 , lir_cond_always
1046 , lir_cond_unknown = -1
1047 };
1048
1049
1050 enum LIR_PatchCode {
1051 lir_patch_none,
1052 lir_patch_low,
1053 lir_patch_high,
1054 lir_patch_normal
1055 };
1056
1057
1058 enum LIR_MoveKind {
1059 lir_move_normal,
1060 lir_move_volatile,
1061 lir_move_wide,
1062 lir_move_max_flag
1063 };
1064
1065
1066 // --------------------------------------------------
1067 // LIR_Op
1068 // --------------------------------------------------
1069 class LIR_Op: public CompilationResourceObj {
1070 friend class LIR_OpVisitState;
1071
1072 #ifdef ASSERT
1073 private:
1074 const char * _file;
1075 int _line;
1076 #endif
1077
1078 protected:
1079 LIR_Opr _result;
1080 unsigned short _code;
1081 unsigned short _flags;
1082 CodeEmitInfo* _info;
1083 int _id; // value id for register allocation
1084 int _fpu_pop_count;
1085 Instruction* _source; // for debugging
1086
1087 static void print_condition(outputStream* out, LIR_Condition cond) PRODUCT_RETURN;
1088
1089 protected:
1090 static bool is_in_range(LIR_Code test, LIR_Code start, LIR_Code end) { return start < test && test < end; }
1091
1092 public:
1093 LIR_Op()
1094 :
1095 #ifdef ASSERT
1096 _file(NULL)
1097 , _line(0),
1098 #endif
1099 _result(LIR_OprFact::illegalOpr)
1100 , _code(lir_none)
1101 , _flags(0)
1102 , _info(NULL)
1103 , _id(-1)
1104 , _fpu_pop_count(0)
1105 , _source(NULL) {}
1106
1107 LIR_Op(LIR_Code code, LIR_Opr result, CodeEmitInfo* info)
1108 :
1109 #ifdef ASSERT
1110 _file(NULL)
1111 , _line(0),
1112 #endif
1113 _result(result)
1114 , _code(code)
1115 , _flags(0)
1116 , _info(info)
1117 , _id(-1)
1118 , _fpu_pop_count(0)
1119 , _source(NULL) {}
1120
1121 CodeEmitInfo* info() const { return _info; }
1122 LIR_Code code() const { return (LIR_Code)_code; }
1123 LIR_Opr result_opr() const { return _result; }
1124 void set_result_opr(LIR_Opr opr) { _result = opr; }
1125
1126 #ifdef ASSERT
1127 void set_file_and_line(const char * file, int line) {
1128 _file = file;
1129 _line = line;
1130 }
1131 #endif
1132
1133 virtual const char * name() const PRODUCT_RETURN0;
1134 virtual void visit(LIR_OpVisitState* state);
1135
1136 int id() const { return _id; }
1137 void set_id(int id) { _id = id; }
1138
1139 // FPU stack simulation helpers -- only used on Intel
1140 void set_fpu_pop_count(int count) { assert(count >= 0 && count <= 1, "currently only 0 and 1 are valid"); _fpu_pop_count = count; }
1141 int fpu_pop_count() const { return _fpu_pop_count; }
1142 bool pop_fpu_stack() { return _fpu_pop_count > 0; }
1143
1144 Instruction* source() const { return _source; }
1145 void set_source(Instruction* ins) { _source = ins; }
1146
1147 virtual void emit_code(LIR_Assembler* masm) = 0;
1148 virtual void print_instr(outputStream* out) const = 0;
1149 virtual void print_on(outputStream* st) const PRODUCT_RETURN;
1150
1151 virtual bool is_patching() { return false; }
1152 virtual LIR_OpCall* as_OpCall() { return NULL; }
1153 virtual LIR_OpJavaCall* as_OpJavaCall() { return NULL; }
1154 virtual LIR_OpLabel* as_OpLabel() { return NULL; }
1155 virtual LIR_OpDelay* as_OpDelay() { return NULL; }
1156 virtual LIR_OpLock* as_OpLock() { return NULL; }
1157 virtual LIR_OpAllocArray* as_OpAllocArray() { return NULL; }
1158 virtual LIR_OpAllocObj* as_OpAllocObj() { return NULL; }
1159 virtual LIR_OpRoundFP* as_OpRoundFP() { return NULL; }
1160 virtual LIR_OpBranch* as_OpBranch() { return NULL; }
1161 virtual LIR_OpReturn* as_OpReturn() { return NULL; }
1162 virtual LIR_OpRTCall* as_OpRTCall() { return NULL; }
1163 virtual LIR_OpConvert* as_OpConvert() { return NULL; }
1164 virtual LIR_Op0* as_Op0() { return NULL; }
1165 virtual LIR_Op1* as_Op1() { return NULL; }
1166 virtual LIR_Op2* as_Op2() { return NULL; }
1167 virtual LIR_Op3* as_Op3() { return NULL; }
1168 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return NULL; }
1169 virtual LIR_OpUpdateCRC32* as_OpUpdateCRC32() { return NULL; }
1170 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return NULL; }
1171 virtual LIR_OpFlattenedArrayCheck* as_OpFlattenedArrayCheck() { return NULL; }
1172 virtual LIR_OpNullFreeArrayCheck* as_OpNullFreeArrayCheck() { return NULL; }
1173 virtual LIR_OpSubstitutabilityCheck* as_OpSubstitutabilityCheck() { return NULL; }
1174 virtual LIR_OpCompareAndSwap* as_OpCompareAndSwap() { return NULL; }
1175 virtual LIR_OpLoadKlass* as_OpLoadKlass() { return NULL; }
1176 virtual LIR_OpProfileCall* as_OpProfileCall() { return NULL; }
1177 virtual LIR_OpProfileType* as_OpProfileType() { return NULL; }
1178 virtual LIR_OpProfileInlineType* as_OpProfileInlineType() { return NULL; }
1179 #ifdef ASSERT
1180 virtual LIR_OpAssert* as_OpAssert() { return NULL; }
1181 #endif
1182
1183 virtual void verify() const {}
1184 };
1185
1186 // for calls
1187 class LIR_OpCall: public LIR_Op {
1188 friend class LIR_OpVisitState;
1189
1190 protected:
1191 address _addr;
1192 LIR_OprList* _arguments;
1193 protected:
1194 LIR_OpCall(LIR_Code code, address addr, LIR_Opr result,
1195 LIR_OprList* arguments, CodeEmitInfo* info = NULL)
1196 : LIR_Op(code, result, info)
1197 , _addr(addr)
1198 , _arguments(arguments) {}
1199
1200 public:
1201 address addr() const { return _addr; }
1202 const LIR_OprList* arguments() const { return _arguments; }
1203 virtual LIR_OpCall* as_OpCall() { return this; }
1204 };
1205
1206
1207 // --------------------------------------------------
1208 // LIR_OpJavaCall
1209 // --------------------------------------------------
1210 class LIR_OpJavaCall: public LIR_OpCall {
1211 friend class LIR_OpVisitState;
1212
1213 private:
1214 ciMethod* _method;
1215 LIR_Opr _receiver;
1216 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.
1217
1218 public:
1219 LIR_OpJavaCall(LIR_Code code, ciMethod* method,
1220 LIR_Opr receiver, LIR_Opr result,
1221 address addr, LIR_OprList* arguments,
1222 CodeEmitInfo* info)
1223 : LIR_OpCall(code, addr, result, arguments, info)
1224 , _method(method)
1225 , _receiver(receiver)
1226 , _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr)
1227 { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); }
1228
1229 LIR_OpJavaCall(LIR_Code code, ciMethod* method,
1230 LIR_Opr receiver, LIR_Opr result, intptr_t vtable_offset,
1231 LIR_OprList* arguments, CodeEmitInfo* info)
1232 : LIR_OpCall(code, (address)vtable_offset, result, arguments, info)
1233 , _method(method)
1234 , _receiver(receiver)
1235 , _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr)
1236 { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); }
1237
1238 LIR_Opr receiver() const { return _receiver; }
1239 ciMethod* method() const { return _method; }
1240
1241 // JSR 292 support.
1242 bool is_invokedynamic() const { return code() == lir_dynamic_call; }
1243 bool is_method_handle_invoke() const {
1244 return method()->is_compiled_lambda_form() || // Java-generated lambda form
1245 method()->is_method_handle_intrinsic(); // JVM-generated MH intrinsic
1246 }
1247
1248 virtual void emit_code(LIR_Assembler* masm);
1249 virtual LIR_OpJavaCall* as_OpJavaCall() { return this; }
1250 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1251
1252 bool maybe_return_as_fields(ciInlineKlass** vk = NULL) const;
1253 };
1254
1255 // --------------------------------------------------
1256 // LIR_OpLabel
1257 // --------------------------------------------------
1258 // Location where a branch can continue
1259 class LIR_OpLabel: public LIR_Op {
1260 friend class LIR_OpVisitState;
1261
1262 private:
1263 Label* _label;
1264 public:
1265 LIR_OpLabel(Label* lbl)
1266 : LIR_Op(lir_label, LIR_OprFact::illegalOpr, NULL)
1267 , _label(lbl) {}
1268 Label* label() const { return _label; }
1269
1270 virtual void emit_code(LIR_Assembler* masm);
1271 virtual LIR_OpLabel* as_OpLabel() { return this; }
1272 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1273 };
1274
1275 // LIR_OpArrayCopy
1276 class LIR_OpArrayCopy: public LIR_Op {
1277 friend class LIR_OpVisitState;
1278
1279 private:
1280 ArrayCopyStub* _stub;
1281 LIR_Opr _src;
1282 LIR_Opr _src_pos;
1283 LIR_Opr _dst;
1284 LIR_Opr _dst_pos;
1285 LIR_Opr _length;
1286 LIR_Opr _tmp;
1287 ciArrayKlass* _expected_type;
1288 int _flags;
1289
1290 public:
1291 enum Flags {
1292 src_null_check = 1 << 0,
1293 dst_null_check = 1 << 1,
1294 src_pos_positive_check = 1 << 2,
1295 dst_pos_positive_check = 1 << 3,
1296 length_positive_check = 1 << 4,
1297 src_range_check = 1 << 5,
1298 dst_range_check = 1 << 6,
1299 type_check = 1 << 7,
1300 overlapping = 1 << 8,
1301 unaligned = 1 << 9,
1302 src_objarray = 1 << 10,
1303 dst_objarray = 1 << 11,
1304 always_slow_path = 1 << 12,
1305 src_inlinetype_check = 1 << 13,
1306 dst_inlinetype_check = 1 << 14,
1307 all_flags = (1 << 15) - 1
1308 };
1309
1310 LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length, LIR_Opr tmp,
1311 ciArrayKlass* expected_type, int flags, CodeEmitInfo* info);
1312
1313 LIR_Opr src() const { return _src; }
1314 LIR_Opr src_pos() const { return _src_pos; }
1315 LIR_Opr dst() const { return _dst; }
1316 LIR_Opr dst_pos() const { return _dst_pos; }
1317 LIR_Opr length() const { return _length; }
1318 LIR_Opr tmp() const { return _tmp; }
1319 int flags() const { return _flags; }
1320 ciArrayKlass* expected_type() const { return _expected_type; }
1321 ArrayCopyStub* stub() const { return _stub; }
1322
1323 virtual void emit_code(LIR_Assembler* masm);
1324 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return this; }
1325 void print_instr(outputStream* out) const PRODUCT_RETURN;
1326 };
1327
1328 // LIR_OpUpdateCRC32
1329 class LIR_OpUpdateCRC32: public LIR_Op {
1330 friend class LIR_OpVisitState;
1331
1332 private:
1333 LIR_Opr _crc;
1334 LIR_Opr _val;
1335
1336 public:
1337
1338 LIR_OpUpdateCRC32(LIR_Opr crc, LIR_Opr val, LIR_Opr res);
1339
1340 LIR_Opr crc() const { return _crc; }
1341 LIR_Opr val() const { return _val; }
1342
1343 virtual void emit_code(LIR_Assembler* masm);
1344 virtual LIR_OpUpdateCRC32* as_OpUpdateCRC32() { return this; }
1345 void print_instr(outputStream* out) const PRODUCT_RETURN;
1346 };
1347
1348 // --------------------------------------------------
1349 // LIR_Op0
1350 // --------------------------------------------------
1351 class LIR_Op0: public LIR_Op {
1352 friend class LIR_OpVisitState;
1353
1354 public:
1355 LIR_Op0(LIR_Code code)
1356 : LIR_Op(code, LIR_OprFact::illegalOpr, NULL) { assert(is_in_range(code, begin_op0, end_op0), "code check"); }
1357 LIR_Op0(LIR_Code code, LIR_Opr result, CodeEmitInfo* info = NULL)
1358 : LIR_Op(code, result, info) { assert(is_in_range(code, begin_op0, end_op0), "code check"); }
1359
1360 virtual void emit_code(LIR_Assembler* masm);
1361 virtual LIR_Op0* as_Op0() { return this; }
1362 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1363 };
1364
1365
1366 // --------------------------------------------------
1367 // LIR_Op1
1368 // --------------------------------------------------
1369
1370 class LIR_Op1: public LIR_Op {
1371 friend class LIR_OpVisitState;
1372
1373 protected:
1374 LIR_Opr _opr; // input operand
1375 BasicType _type; // Operand types
1376 LIR_PatchCode _patch; // only required with patchin (NEEDS_CLEANUP: do we want a special instruction for patching?)
1377
1378 static void print_patch_code(outputStream* out, LIR_PatchCode code);
1379
1380 void set_kind(LIR_MoveKind kind) {
1381 assert(code() == lir_move, "must be");
1382 _flags = kind;
1383 }
1384
1385 public:
1386 LIR_Op1(LIR_Code code, LIR_Opr opr, LIR_Opr result = LIR_OprFact::illegalOpr, BasicType type = T_ILLEGAL, LIR_PatchCode patch = lir_patch_none, CodeEmitInfo* info = NULL)
1387 : LIR_Op(code, result, info)
1388 , _opr(opr)
1389 , _type(type)
1390 , _patch(patch) { assert(is_in_range(code, begin_op1, end_op1), "code check"); }
1391
1392 LIR_Op1(LIR_Code code, LIR_Opr opr, LIR_Opr result, BasicType type, LIR_PatchCode patch, CodeEmitInfo* info, LIR_MoveKind kind)
1393 : LIR_Op(code, result, info)
1394 , _opr(opr)
1395 , _type(type)
1396 , _patch(patch) {
1397 assert(code == lir_move, "must be");
1398 set_kind(kind);
1399 }
1400
1401 LIR_Op1(LIR_Code code, LIR_Opr opr, CodeEmitInfo* info)
1402 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1403 , _opr(opr)
1404 , _type(T_ILLEGAL)
1405 , _patch(lir_patch_none) { assert(is_in_range(code, begin_op1, end_op1), "code check"); }
1406
1407 LIR_Opr in_opr() const { return _opr; }
1408 LIR_PatchCode patch_code() const { return _patch; }
1409 BasicType type() const { return _type; }
1410
1411 LIR_MoveKind move_kind() const {
1412 assert(code() == lir_move, "must be");
1413 return (LIR_MoveKind)_flags;
1414 }
1415
1416 virtual bool is_patching() { return _patch != lir_patch_none; }
1417 virtual void emit_code(LIR_Assembler* masm);
1418 virtual LIR_Op1* as_Op1() { return this; }
1419 virtual const char * name() const PRODUCT_RETURN0;
1420
1421 void set_in_opr(LIR_Opr opr) { _opr = opr; }
1422
1423 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1424 virtual void verify() const;
1425 };
1426
1427
1428 // for runtime calls
1429 class LIR_OpRTCall: public LIR_OpCall {
1430 friend class LIR_OpVisitState;
1431
1432 private:
1433 LIR_Opr _tmp;
1434 public:
1435 LIR_OpRTCall(address addr, LIR_Opr tmp,
1436 LIR_Opr result, LIR_OprList* arguments, CodeEmitInfo* info = NULL)
1437 : LIR_OpCall(lir_rtcall, addr, result, arguments, info)
1438 , _tmp(tmp) {}
1439
1440 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1441 virtual void emit_code(LIR_Assembler* masm);
1442 virtual LIR_OpRTCall* as_OpRTCall() { return this; }
1443
1444 LIR_Opr tmp() const { return _tmp; }
1445
1446 virtual void verify() const;
1447 };
1448
1449
1450 class LIR_OpBranch: public LIR_Op {
1451 friend class LIR_OpVisitState;
1452
1453 private:
1454 LIR_Condition _cond;
1455 Label* _label;
1456 BlockBegin* _block; // if this is a branch to a block, this is the block
1457 BlockBegin* _ublock; // if this is a float-branch, this is the unorderd block
1458 CodeStub* _stub; // if this is a branch to a stub, this is the stub
1459
1460 public:
1461 LIR_OpBranch(LIR_Condition cond, Label* lbl)
1462 : LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*) NULL)
1463 , _cond(cond)
1464 , _label(lbl)
1465 , _block(NULL)
1466 , _ublock(NULL)
1467 , _stub(NULL) { }
1468
1469 LIR_OpBranch(LIR_Condition cond, BlockBegin* block);
1470 LIR_OpBranch(LIR_Condition cond, CodeStub* stub);
1471
1472 // for unordered comparisons
1473 LIR_OpBranch(LIR_Condition cond, BlockBegin* block, BlockBegin* ublock);
1474
1475 LIR_Condition cond() const { return _cond; }
1476 Label* label() const { return _label; }
1477 BlockBegin* block() const { return _block; }
1478 BlockBegin* ublock() const { return _ublock; }
1479 CodeStub* stub() const { return _stub; }
1480
1481 void change_block(BlockBegin* b);
1482 void change_ublock(BlockBegin* b);
1483 void negate_cond();
1484
1485 virtual void emit_code(LIR_Assembler* masm);
1486 virtual LIR_OpBranch* as_OpBranch() { return this; }
1487 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1488 };
1489
1490 class LIR_OpReturn: public LIR_Op1 {
1491 friend class LIR_OpVisitState;
1492
1493 private:
1494 C1SafepointPollStub* _stub;
1495
1496 public:
1497 LIR_OpReturn(LIR_Opr opr);
1498
1499 C1SafepointPollStub* stub() const { return _stub; }
1500 virtual LIR_OpReturn* as_OpReturn() { return this; }
1501 };
1502
1503 class ConversionStub;
1504
1505 class LIR_OpConvert: public LIR_Op1 {
1506 friend class LIR_OpVisitState;
1507
1508 private:
1509 Bytecodes::Code _bytecode;
1510 ConversionStub* _stub;
1511
1512 public:
1513 LIR_OpConvert(Bytecodes::Code code, LIR_Opr opr, LIR_Opr result, ConversionStub* stub)
1514 : LIR_Op1(lir_convert, opr, result)
1515 , _bytecode(code)
1516 , _stub(stub) {}
1517
1518 Bytecodes::Code bytecode() const { return _bytecode; }
1519 ConversionStub* stub() const { return _stub; }
1520
1521 virtual void emit_code(LIR_Assembler* masm);
1522 virtual LIR_OpConvert* as_OpConvert() { return this; }
1523 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1524
1525 static void print_bytecode(outputStream* out, Bytecodes::Code code) PRODUCT_RETURN;
1526 };
1527
1528
1529 // LIR_OpAllocObj
1530 class LIR_OpAllocObj : public LIR_Op1 {
1531 friend class LIR_OpVisitState;
1532
1533 private:
1534 LIR_Opr _tmp1;
1535 LIR_Opr _tmp2;
1536 LIR_Opr _tmp3;
1537 LIR_Opr _tmp4;
1538 int _hdr_size;
1539 int _obj_size;
1540 CodeStub* _stub;
1541 bool _init_check;
1542
1543 public:
1544 LIR_OpAllocObj(LIR_Opr klass, LIR_Opr result,
1545 LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1546 int hdr_size, int obj_size, bool init_check, CodeStub* stub)
1547 : LIR_Op1(lir_alloc_object, klass, result)
1548 , _tmp1(t1)
1549 , _tmp2(t2)
1550 , _tmp3(t3)
1551 , _tmp4(t4)
1552 , _hdr_size(hdr_size)
1553 , _obj_size(obj_size)
1554 , _stub(stub)
1555 , _init_check(init_check) { }
1556
1557 LIR_Opr klass() const { return in_opr(); }
1558 LIR_Opr obj() const { return result_opr(); }
1559 LIR_Opr tmp1() const { return _tmp1; }
1560 LIR_Opr tmp2() const { return _tmp2; }
1561 LIR_Opr tmp3() const { return _tmp3; }
1562 LIR_Opr tmp4() const { return _tmp4; }
1563 int header_size() const { return _hdr_size; }
1564 int object_size() const { return _obj_size; }
1565 bool init_check() const { return _init_check; }
1566 CodeStub* stub() const { return _stub; }
1567
1568 virtual void emit_code(LIR_Assembler* masm);
1569 virtual LIR_OpAllocObj * as_OpAllocObj () { return this; }
1570 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1571 };
1572
1573
1574 // LIR_OpRoundFP
1575 class LIR_OpRoundFP : public LIR_Op1 {
1576 friend class LIR_OpVisitState;
1577
1578 private:
1579 LIR_Opr _tmp;
1580
1581 public:
1582 LIR_OpRoundFP(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result)
1583 : LIR_Op1(lir_roundfp, reg, result)
1584 , _tmp(stack_loc_temp) {}
1585
1586 LIR_Opr tmp() const { return _tmp; }
1587 virtual LIR_OpRoundFP* as_OpRoundFP() { return this; }
1588 void print_instr(outputStream* out) const PRODUCT_RETURN;
1589 };
1590
1591 // LIR_OpTypeCheck
1592 class LIR_OpTypeCheck: public LIR_Op {
1593 friend class LIR_OpVisitState;
1594
1595 private:
1596 LIR_Opr _object;
1597 LIR_Opr _array;
1598 ciKlass* _klass;
1599 LIR_Opr _tmp1;
1600 LIR_Opr _tmp2;
1601 LIR_Opr _tmp3;
1602 bool _fast_check;
1603 CodeEmitInfo* _info_for_patch;
1604 CodeEmitInfo* _info_for_exception;
1605 CodeStub* _stub;
1606 ciMethod* _profiled_method;
1607 int _profiled_bci;
1608 bool _should_profile;
1609 bool _need_null_check;
1610
1611 public:
1612 LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
1613 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1614 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub, bool need_null_check = true);
1615 LIR_OpTypeCheck(LIR_Code code, LIR_Opr object, LIR_Opr array,
1616 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception);
1617
1618 LIR_Opr object() const { return _object; }
1619 LIR_Opr array() const { assert(code() == lir_store_check, "not valid"); return _array; }
1620 LIR_Opr tmp1() const { return _tmp1; }
1621 LIR_Opr tmp2() const { return _tmp2; }
1622 LIR_Opr tmp3() const { return _tmp3; }
1623 ciKlass* klass() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _klass; }
1624 bool fast_check() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _fast_check; }
1625 CodeEmitInfo* info_for_patch() const { return _info_for_patch; }
1626 CodeEmitInfo* info_for_exception() const { return _info_for_exception; }
1627 CodeStub* stub() const { return _stub; }
1628
1629 // MethodData* profiling
1630 void set_profiled_method(ciMethod *method) { _profiled_method = method; }
1631 void set_profiled_bci(int bci) { _profiled_bci = bci; }
1632 void set_should_profile(bool b) { _should_profile = b; }
1633 ciMethod* profiled_method() const { return _profiled_method; }
1634 int profiled_bci() const { return _profiled_bci; }
1635 bool should_profile() const { return _should_profile; }
1636 bool need_null_check() const { return _need_null_check; }
1637 virtual bool is_patching() { return _info_for_patch != NULL; }
1638 virtual void emit_code(LIR_Assembler* masm);
1639 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return this; }
1640 void print_instr(outputStream* out) const PRODUCT_RETURN;
1641 };
1642
1643 // LIR_OpFlattenedArrayCheck
1644 class LIR_OpFlattenedArrayCheck: public LIR_Op {
1645 friend class LIR_OpVisitState;
1646
1647 private:
1648 LIR_Opr _array;
1649 LIR_Opr _value;
1650 LIR_Opr _tmp;
1651 CodeStub* _stub;
1652 public:
1653 LIR_OpFlattenedArrayCheck(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub);
1654 LIR_Opr array() const { return _array; }
1655 LIR_Opr value() const { return _value; }
1656 LIR_Opr tmp() const { return _tmp; }
1657 CodeStub* stub() const { return _stub; }
1658
1659 virtual void emit_code(LIR_Assembler* masm);
1660 virtual LIR_OpFlattenedArrayCheck* as_OpFlattenedArrayCheck() { return this; }
1661 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1662 };
1663
1664 // LIR_OpNullFreeArrayCheck
1665 class LIR_OpNullFreeArrayCheck: public LIR_Op {
1666 friend class LIR_OpVisitState;
1667
1668 private:
1669 LIR_Opr _array;
1670 LIR_Opr _tmp;
1671 public:
1672 LIR_OpNullFreeArrayCheck(LIR_Opr array, LIR_Opr tmp);
1673 LIR_Opr array() const { return _array; }
1674 LIR_Opr tmp() const { return _tmp; }
1675
1676 virtual void emit_code(LIR_Assembler* masm);
1677 virtual LIR_OpNullFreeArrayCheck* as_OpNullFreeArrayCheck() { return this; }
1678 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1679 };
1680
1681 class LIR_OpSubstitutabilityCheck: public LIR_Op {
1682 friend class LIR_OpVisitState;
1683
1684 private:
1685 LIR_Opr _left;
1686 LIR_Opr _right;
1687 LIR_Opr _equal_result;
1688 LIR_Opr _not_equal_result;
1689 LIR_Opr _tmp1;
1690 LIR_Opr _tmp2;
1691 ciKlass* _left_klass;
1692 ciKlass* _right_klass;
1693 LIR_Opr _left_klass_op;
1694 LIR_Opr _right_klass_op;
1695 CodeStub* _stub;
1696 public:
1697 LIR_OpSubstitutabilityCheck(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result,
1698 LIR_Opr tmp1, LIR_Opr tmp2,
1699 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op,
1700 CodeEmitInfo* info, CodeStub* stub);
1701
1702 LIR_Opr left() const { return _left; }
1703 LIR_Opr right() const { return _right; }
1704 LIR_Opr equal_result() const { return _equal_result; }
1705 LIR_Opr not_equal_result() const { return _not_equal_result; }
1706 LIR_Opr tmp1() const { return _tmp1; }
1707 LIR_Opr tmp2() const { return _tmp2; }
1708 ciKlass* left_klass() const { return _left_klass; }
1709 ciKlass* right_klass() const { return _right_klass; }
1710 LIR_Opr left_klass_op() const { return _left_klass_op; }
1711 LIR_Opr right_klass_op() const { return _right_klass_op; }
1712 CodeStub* stub() const { return _stub; }
1713
1714 virtual void emit_code(LIR_Assembler* masm);
1715 virtual LIR_OpSubstitutabilityCheck* as_OpSubstitutabilityCheck() { return this; }
1716 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1717 };
1718
1719 // LIR_Op2
1720 class LIR_Op2: public LIR_Op {
1721 friend class LIR_OpVisitState;
1722
1723 int _fpu_stack_size; // for sin/cos implementation on Intel
1724
1725 protected:
1726 LIR_Opr _opr1;
1727 LIR_Opr _opr2;
1728 BasicType _type;
1729 LIR_Opr _tmp1;
1730 LIR_Opr _tmp2;
1731 LIR_Opr _tmp3;
1732 LIR_Opr _tmp4;
1733 LIR_Opr _tmp5;
1734 LIR_Condition _condition;
1735
1736 void verify() const;
1737
1738 public:
1739 LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, CodeEmitInfo* info = NULL)
1740 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1741 , _fpu_stack_size(0)
1742 , _opr1(opr1)
1743 , _opr2(opr2)
1744 , _type(T_ILLEGAL)
1745 , _tmp1(LIR_OprFact::illegalOpr)
1746 , _tmp2(LIR_OprFact::illegalOpr)
1747 , _tmp3(LIR_OprFact::illegalOpr)
1748 , _tmp4(LIR_OprFact::illegalOpr)
1749 , _tmp5(LIR_OprFact::illegalOpr)
1750 , _condition(condition) {
1751 assert(code == lir_cmp || code == lir_assert, "code check");
1752 }
1753
1754 LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, BasicType type)
1755 : LIR_Op(code, result, NULL)
1756 , _fpu_stack_size(0)
1757 , _opr1(opr1)
1758 , _opr2(opr2)
1759 , _type(type)
1760 , _tmp1(LIR_OprFact::illegalOpr)
1761 , _tmp2(LIR_OprFact::illegalOpr)
1762 , _tmp3(LIR_OprFact::illegalOpr)
1763 , _tmp4(LIR_OprFact::illegalOpr)
1764 , _tmp5(LIR_OprFact::illegalOpr)
1765 , _condition(condition) {
1766 assert(code == lir_cmove, "code check");
1767 assert(type != T_ILLEGAL, "cmove should have type");
1768 }
1769
1770 LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result = LIR_OprFact::illegalOpr,
1771 CodeEmitInfo* info = NULL, BasicType type = T_ILLEGAL)
1772 : LIR_Op(code, result, info)
1773 , _fpu_stack_size(0)
1774 , _opr1(opr1)
1775 , _opr2(opr2)
1776 , _type(type)
1777 , _tmp1(LIR_OprFact::illegalOpr)
1778 , _tmp2(LIR_OprFact::illegalOpr)
1779 , _tmp3(LIR_OprFact::illegalOpr)
1780 , _tmp4(LIR_OprFact::illegalOpr)
1781 , _tmp5(LIR_OprFact::illegalOpr)
1782 , _condition(lir_cond_unknown) {
1783 assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check");
1784 }
1785
1786 LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, LIR_Opr tmp1, LIR_Opr tmp2 = LIR_OprFact::illegalOpr,
1787 LIR_Opr tmp3 = LIR_OprFact::illegalOpr, LIR_Opr tmp4 = LIR_OprFact::illegalOpr, LIR_Opr tmp5 = LIR_OprFact::illegalOpr)
1788 : LIR_Op(code, result, NULL)
1789 , _fpu_stack_size(0)
1790 , _opr1(opr1)
1791 , _opr2(opr2)
1792 , _type(T_ILLEGAL)
1793 , _tmp1(tmp1)
1794 , _tmp2(tmp2)
1795 , _tmp3(tmp3)
1796 , _tmp4(tmp4)
1797 , _tmp5(tmp5)
1798 , _condition(lir_cond_unknown) {
1799 assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check");
1800 }
1801
1802 LIR_Opr in_opr1() const { return _opr1; }
1803 LIR_Opr in_opr2() const { return _opr2; }
1804 BasicType type() const { return _type; }
1805 LIR_Opr tmp1_opr() const { return _tmp1; }
1806 LIR_Opr tmp2_opr() const { return _tmp2; }
1807 LIR_Opr tmp3_opr() const { return _tmp3; }
1808 LIR_Opr tmp4_opr() const { return _tmp4; }
1809 LIR_Opr tmp5_opr() const { return _tmp5; }
1810 LIR_Condition condition() const {
1811 assert(code() == lir_cmp || code() == lir_cmove || code() == lir_assert, "only valid for cmp and cmove and assert"); return _condition;
1812 }
1813 void set_condition(LIR_Condition condition) {
1814 assert(code() == lir_cmp || code() == lir_cmove, "only valid for cmp and cmove"); _condition = condition;
1815 }
1816
1817 void set_fpu_stack_size(int size) { _fpu_stack_size = size; }
1818 int fpu_stack_size() const { return _fpu_stack_size; }
1819
1820 void set_in_opr1(LIR_Opr opr) { _opr1 = opr; }
1821 void set_in_opr2(LIR_Opr opr) { _opr2 = opr; }
1822
1823 virtual void emit_code(LIR_Assembler* masm);
1824 virtual LIR_Op2* as_Op2() { return this; }
1825 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1826 };
1827
1828 class LIR_OpAllocArray : public LIR_Op {
1829 friend class LIR_OpVisitState;
1830
1831 private:
1832 LIR_Opr _klass;
1833 LIR_Opr _len;
1834 LIR_Opr _tmp1;
1835 LIR_Opr _tmp2;
1836 LIR_Opr _tmp3;
1837 LIR_Opr _tmp4;
1838 BasicType _type;
1839 CodeStub* _stub;
1840
1841 public:
1842 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)
1843 : LIR_Op(lir_alloc_array, result, NULL)
1844 , _klass(klass)
1845 , _len(len)
1846 , _tmp1(t1)
1847 , _tmp2(t2)
1848 , _tmp3(t3)
1849 , _tmp4(t4)
1850 , _type(type)
1851 , _stub(stub) {}
1852
1853 LIR_Opr klass() const { return _klass; }
1854 LIR_Opr len() const { return _len; }
1855 LIR_Opr obj() const { return result_opr(); }
1856 LIR_Opr tmp1() const { return _tmp1; }
1857 LIR_Opr tmp2() const { return _tmp2; }
1858 LIR_Opr tmp3() const { return _tmp3; }
1859 LIR_Opr tmp4() const { return _tmp4; }
1860 BasicType type() const { return _type; }
1861 CodeStub* stub() const { return _stub; }
1862
1863 virtual void emit_code(LIR_Assembler* masm);
1864 virtual LIR_OpAllocArray * as_OpAllocArray () { return this; }
1865 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1866 };
1867
1868
1869 class LIR_Op3: public LIR_Op {
1870 friend class LIR_OpVisitState;
1871
1872 private:
1873 LIR_Opr _opr1;
1874 LIR_Opr _opr2;
1875 LIR_Opr _opr3;
1876 public:
1877 LIR_Op3(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr opr3, LIR_Opr result, CodeEmitInfo* info = NULL)
1878 : LIR_Op(code, result, info)
1879 , _opr1(opr1)
1880 , _opr2(opr2)
1881 , _opr3(opr3) { assert(is_in_range(code, begin_op3, end_op3), "code check"); }
1882 LIR_Opr in_opr1() const { return _opr1; }
1883 LIR_Opr in_opr2() const { return _opr2; }
1884 LIR_Opr in_opr3() const { return _opr3; }
1885
1886 virtual void emit_code(LIR_Assembler* masm);
1887 virtual LIR_Op3* as_Op3() { return this; }
1888 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1889 };
1890
1891
1892 //--------------------------------
1893 class LabelObj: public CompilationResourceObj {
1894 private:
1895 Label _label;
1896 public:
1897 LabelObj() {}
1898 Label* label() { return &_label; }
1899 };
1900
1901
1902 class LIR_OpLock: public LIR_Op {
1903 friend class LIR_OpVisitState;
1904
1905 private:
1906 LIR_Opr _hdr;
1907 LIR_Opr _obj;
1908 LIR_Opr _lock;
1909 LIR_Opr _scratch;
1910 CodeStub* _stub;
1911 CodeStub* _throw_imse_stub;
1912 public:
1913 LIR_OpLock(LIR_Code code, LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info, CodeStub* throw_imse_stub=NULL)
1914 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1915 , _hdr(hdr)
1916 , _obj(obj)
1917 , _lock(lock)
1918 , _scratch(scratch)
1919 , _stub(stub)
1920 , _throw_imse_stub(throw_imse_stub) {}
1921
1922 LIR_Opr hdr_opr() const { return _hdr; }
1923 LIR_Opr obj_opr() const { return _obj; }
1924 LIR_Opr lock_opr() const { return _lock; }
1925 LIR_Opr scratch_opr() const { return _scratch; }
1926 CodeStub* stub() const { return _stub; }
1927 CodeStub* throw_imse_stub() const { return _throw_imse_stub; }
1928
1929 virtual void emit_code(LIR_Assembler* masm);
1930 virtual LIR_OpLock* as_OpLock() { return this; }
1931 void print_instr(outputStream* out) const PRODUCT_RETURN;
1932 };
1933
1934 class LIR_OpLoadKlass: public LIR_Op {
1935 friend class LIR_OpVisitState;
1936
1937 private:
1938 LIR_Opr _obj;
1939 public:
1940 LIR_OpLoadKlass(LIR_Opr obj, LIR_Opr result, CodeEmitInfo* info)
1941 : LIR_Op(lir_load_klass, result, info)
1942 , _obj(obj)
1943 {}
1944
1945 LIR_Opr obj() const { return _obj; }
1946
1947 virtual LIR_OpLoadKlass* as_OpLoadKlass() { return this; }
1948 virtual void emit_code(LIR_Assembler* masm);
1949 void print_instr(outputStream* out) const PRODUCT_RETURN;
1950 };
1951
1952 class LIR_OpDelay: public LIR_Op {
1953 friend class LIR_OpVisitState;
1954
1955 private:
1956 LIR_Op* _op;
1957
1958 public:
1959 LIR_OpDelay(LIR_Op* op, CodeEmitInfo* info):
1960 LIR_Op(lir_delay_slot, LIR_OprFact::illegalOpr, info),
1961 _op(op) {
1962 assert(op->code() == lir_nop, "should be filling with nops");
1963 }
1964 virtual void emit_code(LIR_Assembler* masm);
1965 virtual LIR_OpDelay* as_OpDelay() { return this; }
1966 void print_instr(outputStream* out) const PRODUCT_RETURN;
1967 LIR_Op* delay_op() const { return _op; }
1968 CodeEmitInfo* call_info() const { return info(); }
1969 };
1970
1971 #ifdef ASSERT
1972 // LIR_OpAssert
1973 class LIR_OpAssert : public LIR_Op2 {
1974 friend class LIR_OpVisitState;
1975
1976 private:
1977 const char* _msg;
1978 bool _halt;
1979
1980 public:
1981 LIR_OpAssert(LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, const char* msg, bool halt)
1982 : LIR_Op2(lir_assert, condition, opr1, opr2)
1983 , _msg(msg)
1984 , _halt(halt) {
1985 }
1986
1987 const char* msg() const { return _msg; }
1988 bool halt() const { return _halt; }
1989
1990 virtual void emit_code(LIR_Assembler* masm);
1991 virtual LIR_OpAssert* as_OpAssert() { return this; }
1992 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1993 };
1994 #endif
1995
1996 // LIR_OpCompareAndSwap
1997 class LIR_OpCompareAndSwap : public LIR_Op {
1998 friend class LIR_OpVisitState;
1999
2000 private:
2001 LIR_Opr _addr;
2002 LIR_Opr _cmp_value;
2003 LIR_Opr _new_value;
2004 LIR_Opr _tmp1;
2005 LIR_Opr _tmp2;
2006
2007 public:
2008 LIR_OpCompareAndSwap(LIR_Code code, LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
2009 LIR_Opr t1, LIR_Opr t2, LIR_Opr result)
2010 : LIR_Op(code, result, NULL) // no result, no info
2011 , _addr(addr)
2012 , _cmp_value(cmp_value)
2013 , _new_value(new_value)
2014 , _tmp1(t1)
2015 , _tmp2(t2) { }
2016
2017 LIR_Opr addr() const { return _addr; }
2018 LIR_Opr cmp_value() const { return _cmp_value; }
2019 LIR_Opr new_value() const { return _new_value; }
2020 LIR_Opr tmp1() const { return _tmp1; }
2021 LIR_Opr tmp2() const { return _tmp2; }
2022
2023 virtual void emit_code(LIR_Assembler* masm);
2024 virtual LIR_OpCompareAndSwap * as_OpCompareAndSwap () { return this; }
2025 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
2026 };
2027
2028 // LIR_OpProfileCall
2029 class LIR_OpProfileCall : public LIR_Op {
2030 friend class LIR_OpVisitState;
2031
2032 private:
2033 ciMethod* _profiled_method;
2034 int _profiled_bci;
2035 ciMethod* _profiled_callee;
2036 LIR_Opr _mdo;
2037 LIR_Opr _recv;
2038 LIR_Opr _tmp1;
2039 ciKlass* _known_holder;
2040
2041 public:
2042 // Destroys recv
2043 LIR_OpProfileCall(ciMethod* profiled_method, int profiled_bci, ciMethod* profiled_callee, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* known_holder)
2044 : LIR_Op(lir_profile_call, LIR_OprFact::illegalOpr, NULL) // no result, no info
2045 , _profiled_method(profiled_method)
2046 , _profiled_bci(profiled_bci)
2047 , _profiled_callee(profiled_callee)
2048 , _mdo(mdo)
2049 , _recv(recv)
2050 , _tmp1(t1)
2051 , _known_holder(known_holder) { }
2052
2053 ciMethod* profiled_method() const { return _profiled_method; }
2054 int profiled_bci() const { return _profiled_bci; }
2055 ciMethod* profiled_callee() const { return _profiled_callee; }
2056 LIR_Opr mdo() const { return _mdo; }
2057 LIR_Opr recv() const { return _recv; }
2058 LIR_Opr tmp1() const { return _tmp1; }
2059 ciKlass* known_holder() const { return _known_holder; }
2060
2061 virtual void emit_code(LIR_Assembler* masm);
2062 virtual LIR_OpProfileCall* as_OpProfileCall() { return this; }
2063 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
2064 bool should_profile_receiver_type() const {
2065 bool callee_is_static = _profiled_callee->is_loaded() && _profiled_callee->is_static();
2066 Bytecodes::Code bc = _profiled_method->java_code_at_bci(_profiled_bci);
2067 bool call_is_virtual = (bc == Bytecodes::_invokevirtual && !_profiled_callee->can_be_statically_bound()) || bc == Bytecodes::_invokeinterface;
2068 return C1ProfileVirtualCalls && call_is_virtual && !callee_is_static;
2069 }
2070 };
2071
2072 // LIR_OpProfileType
2073 class LIR_OpProfileType : public LIR_Op {
2074 friend class LIR_OpVisitState;
2075
2076 private:
2077 LIR_Opr _mdp;
2078 LIR_Opr _obj;
2079 LIR_Opr _tmp;
2080 ciKlass* _exact_klass; // non NULL if we know the klass statically (no need to load it from _obj)
2081 intptr_t _current_klass; // what the profiling currently reports
2082 bool _not_null; // true if we know statically that _obj cannot be null
2083 bool _no_conflict; // true if we're profling parameters, _exact_klass is not NULL and we know
2084 // _exact_klass it the only possible type for this parameter in any context.
2085
2086 public:
2087 // Destroys recv
2088 LIR_OpProfileType(LIR_Opr mdp, LIR_Opr obj, ciKlass* exact_klass, intptr_t current_klass, LIR_Opr tmp, bool not_null, bool no_conflict)
2089 : LIR_Op(lir_profile_type, LIR_OprFact::illegalOpr, NULL) // no result, no info
2090 , _mdp(mdp)
2091 , _obj(obj)
2092 , _tmp(tmp)
2093 , _exact_klass(exact_klass)
2094 , _current_klass(current_klass)
2095 , _not_null(not_null)
2096 , _no_conflict(no_conflict) { }
2097
2098 LIR_Opr mdp() const { return _mdp; }
2099 LIR_Opr obj() const { return _obj; }
2100 LIR_Opr tmp() const { return _tmp; }
2101 ciKlass* exact_klass() const { return _exact_klass; }
2102 intptr_t current_klass() const { return _current_klass; }
2103 bool not_null() const { return _not_null; }
2104 bool no_conflict() const { return _no_conflict; }
2105
2106 virtual void emit_code(LIR_Assembler* masm);
2107 virtual LIR_OpProfileType* as_OpProfileType() { return this; }
2108 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
2109 };
2110
2111 // LIR_OpProfileInlineType
2112 class LIR_OpProfileInlineType : public LIR_Op {
2113 friend class LIR_OpVisitState;
2114
2115 private:
2116 LIR_Opr _mdp;
2117 LIR_Opr _obj;
2118 int _flag;
2119 LIR_Opr _tmp;
2120 bool _not_null; // true if we know statically that _obj cannot be null
2121
2122 public:
2123 // Destroys recv
2124 LIR_OpProfileInlineType(LIR_Opr mdp, LIR_Opr obj, int flag, LIR_Opr tmp, bool not_null)
2125 : LIR_Op(lir_profile_inline_type, LIR_OprFact::illegalOpr, NULL) // no result, no info
2126 , _mdp(mdp)
2127 , _obj(obj)
2128 , _flag(flag)
2129 , _tmp(tmp)
2130 , _not_null(not_null) { }
2131
2132 LIR_Opr mdp() const { return _mdp; }
2133 LIR_Opr obj() const { return _obj; }
2134 int flag() const { return _flag; }
2135 LIR_Opr tmp() const { return _tmp; }
2136 bool not_null() const { return _not_null; }
2137
2138 virtual void emit_code(LIR_Assembler* masm);
2139 virtual LIR_OpProfileInlineType* as_OpProfileInlineType() { return this; }
2140 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
2141 };
2142
2143 class LIR_InsertionBuffer;
2144
2145 //--------------------------------LIR_List---------------------------------------------------
2146 // Maintains a list of LIR instructions (one instance of LIR_List per basic block)
2147 // The LIR instructions are appended by the LIR_List class itself;
2148 //
2149 // Notes:
2150 // - all offsets are(should be) in bytes
2151 // - local positions are specified with an offset, with offset 0 being local 0
2152
2153 class LIR_List: public CompilationResourceObj {
2154 private:
2155 LIR_OpList _operations;
2156
2157 Compilation* _compilation;
2158 #ifndef PRODUCT
2159 BlockBegin* _block;
2160 #endif
2161 #ifdef ASSERT
2162 const char * _file;
2163 int _line;
2164 #endif
2165
2166 public:
2167 void append(LIR_Op* op) {
2168 if (op->source() == NULL)
2169 op->set_source(_compilation->current_instruction());
2170 #ifndef PRODUCT
2171 if (PrintIRWithLIR) {
2172 _compilation->maybe_print_current_instruction();
2173 op->print(); tty->cr();
2174 }
2175 #endif // PRODUCT
2176
2177 _operations.append(op);
2178
2179 #ifdef ASSERT
2180 op->verify();
2181 op->set_file_and_line(_file, _line);
2182 _file = NULL;
2183 _line = 0;
2184 #endif
2185 }
2186
2187 LIR_List(Compilation* compilation, BlockBegin* block = NULL);
2188
2189 #ifdef ASSERT
2190 void set_file_and_line(const char * file, int line);
2191 #endif
2192
2193 //---------- accessors ---------------
2194 LIR_OpList* instructions_list() { return &_operations; }
2195 int length() const { return _operations.length(); }
2196 LIR_Op* at(int i) const { return _operations.at(i); }
2197
2198 NOT_PRODUCT(BlockBegin* block() const { return _block; });
2199
2200 // insert LIR_Ops in buffer to right places in LIR_List
2201 void append(LIR_InsertionBuffer* buffer);
2202
2203 //---------- mutators ---------------
2204 void insert_before(int i, LIR_List* op_list) { _operations.insert_before(i, op_list->instructions_list()); }
2205 void insert_before(int i, LIR_Op* op) { _operations.insert_before(i, op); }
2206 void remove_at(int i) { _operations.remove_at(i); }
2207
2208 //---------- printing -------------
2209 void print_instructions() PRODUCT_RETURN;
2210
2211
2212 //---------- instructions -------------
2213 void call_opt_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2214 address dest, LIR_OprList* arguments,
2215 CodeEmitInfo* info) {
2216 append(new LIR_OpJavaCall(lir_optvirtual_call, method, receiver, result, dest, arguments, info));
2217 }
2218 void call_static(ciMethod* method, LIR_Opr result,
2219 address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
2220 append(new LIR_OpJavaCall(lir_static_call, method, LIR_OprFact::illegalOpr, result, dest, arguments, info));
2221 }
2222 void call_icvirtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2223 address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
2224 append(new LIR_OpJavaCall(lir_icvirtual_call, method, receiver, result, dest, arguments, info));
2225 }
2226 void call_dynamic(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2227 address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
2228 append(new LIR_OpJavaCall(lir_dynamic_call, method, receiver, result, dest, arguments, info));
2229 }
2230
2231 void get_thread(LIR_Opr result) { append(new LIR_Op0(lir_get_thread, result)); }
2232 void membar() { append(new LIR_Op0(lir_membar)); }
2233 void membar_acquire() { append(new LIR_Op0(lir_membar_acquire)); }
2234 void membar_release() { append(new LIR_Op0(lir_membar_release)); }
2235 void membar_loadload() { append(new LIR_Op0(lir_membar_loadload)); }
2236 void membar_storestore() { append(new LIR_Op0(lir_membar_storestore)); }
2237 void membar_loadstore() { append(new LIR_Op0(lir_membar_loadstore)); }
2238 void membar_storeload() { append(new LIR_Op0(lir_membar_storeload)); }
2239
2240 void nop() { append(new LIR_Op0(lir_nop)); }
2241
2242 void std_entry(LIR_Opr receiver) { append(new LIR_Op0(lir_std_entry, receiver)); }
2243 void osr_entry(LIR_Opr osrPointer) { append(new LIR_Op0(lir_osr_entry, osrPointer)); }
2244
2245 void on_spin_wait() { append(new LIR_Op0(lir_on_spin_wait)); }
2246
2247 void branch_destination(Label* lbl) { append(new LIR_OpLabel(lbl)); }
2248
2249 void leal(LIR_Opr from, LIR_Opr result_reg, LIR_PatchCode patch_code = lir_patch_none, CodeEmitInfo* info = NULL) { append(new LIR_Op1(lir_leal, from, result_reg, T_ILLEGAL, patch_code, info)); }
2250
2251 // result is a stack location for old backend and vreg for UseLinearScan
2252 // stack_loc_temp is an illegal register for old backend
2253 void roundfp(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result) { append(new LIR_OpRoundFP(reg, stack_loc_temp, result)); }
2254 void move(LIR_Opr src, LIR_Opr dst, CodeEmitInfo* info = NULL) { append(new LIR_Op1(lir_move, src, dst, dst->type(), lir_patch_none, info)); }
2255 void move(LIR_Address* src, LIR_Opr dst, CodeEmitInfo* info = NULL) { append(new LIR_Op1(lir_move, LIR_OprFact::address(src), dst, src->type(), lir_patch_none, info)); }
2256 void move(LIR_Opr src, LIR_Address* dst, CodeEmitInfo* info = NULL) { append(new LIR_Op1(lir_move, src, LIR_OprFact::address(dst), dst->type(), lir_patch_none, info)); }
2257 void move_wide(LIR_Address* src, LIR_Opr dst, CodeEmitInfo* info = NULL) {
2258 if (UseCompressedOops) {
2259 append(new LIR_Op1(lir_move, LIR_OprFact::address(src), dst, src->type(), lir_patch_none, info, lir_move_wide));
2260 } else {
2261 move(src, dst, info);
2262 }
2263 }
2264 void move_wide(LIR_Opr src, LIR_Address* dst, CodeEmitInfo* info = NULL) {
2265 if (UseCompressedOops) {
2266 append(new LIR_Op1(lir_move, src, LIR_OprFact::address(dst), dst->type(), lir_patch_none, info, lir_move_wide));
2267 } else {
2268 move(src, dst, info);
2269 }
2270 }
2271 void volatile_move(LIR_Opr src, LIR_Opr dst, BasicType type, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none) { append(new LIR_Op1(lir_move, src, dst, type, patch_code, info, lir_move_volatile)); }
2272
2273 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)); }
2274 void oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info);
2275
2276 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)); }
2277 void klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info);
2278
2279 void safepoint(LIR_Opr tmp, CodeEmitInfo* info) { append(new LIR_Op1(lir_safepoint, tmp, info)); }
2280 void return_op(LIR_Opr result) { append(new LIR_OpReturn(result)); }
2281
2282 void convert(Bytecodes::Code code, LIR_Opr left, LIR_Opr dst, ConversionStub* stub = NULL/*, bool is_32bit = false*/) { append(new LIR_OpConvert(code, left, dst, stub)); }
2283
2284 void logical_and (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_and, left, right, dst)); }
2285 void logical_or (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_or, left, right, dst)); }
2286 void logical_xor (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_xor, left, right, dst)); }
2287
2288 void null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null = false);
2289 void throw_exception(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) {
2290 append(new LIR_Op2(lir_throw, exceptionPC, exceptionOop, LIR_OprFact::illegalOpr, info));
2291 }
2292 void unwind_exception(LIR_Opr exceptionOop) {
2293 append(new LIR_Op1(lir_unwind, exceptionOop));
2294 }
2295
2296 void push(LIR_Opr opr) { append(new LIR_Op1(lir_push, opr)); }
2297 void pop(LIR_Opr reg) { append(new LIR_Op1(lir_pop, reg)); }
2298
2299 void cmp(LIR_Condition condition, LIR_Opr left, LIR_Opr right, CodeEmitInfo* info = NULL) {
2300 append(new LIR_Op2(lir_cmp, condition, left, right, info));
2301 }
2302 void cmp(LIR_Condition condition, LIR_Opr left, int right, CodeEmitInfo* info = NULL) {
2303 cmp(condition, left, LIR_OprFact::intConst(right), info);
2304 }
2305
2306 void cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info);
2307 void cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info);
2308
2309 void cmove(LIR_Condition condition, LIR_Opr src1, LIR_Opr src2, LIR_Opr dst, BasicType type) {
2310 append(new LIR_Op2(lir_cmove, condition, src1, src2, dst, type));
2311 }
2312
2313 void cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
2314 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr);
2315 void cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
2316 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr);
2317 void cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
2318 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr);
2319
2320 void abs (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_abs , from, tmp, to)); }
2321 void negate(LIR_Opr from, LIR_Opr to, LIR_Opr tmp = LIR_OprFact::illegalOpr) { append(new LIR_Op2(lir_neg, from, tmp, to)); }
2322 void sqrt(LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_sqrt, from, tmp, to)); }
2323 void fmad(LIR_Opr from, LIR_Opr from1, LIR_Opr from2, LIR_Opr to) { append(new LIR_Op3(lir_fmad, from, from1, from2, to)); }
2324 void fmaf(LIR_Opr from, LIR_Opr from1, LIR_Opr from2, LIR_Opr to) { append(new LIR_Op3(lir_fmaf, from, from1, from2, to)); }
2325 void log10 (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_log10, from, LIR_OprFact::illegalOpr, to, tmp)); }
2326 void tan (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_Op2(lir_tan , from, tmp1, to, tmp2)); }
2327
2328 void add (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_add, left, right, res)); }
2329 void sub (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_sub, left, right, res, info)); }
2330 void mul (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_mul, left, right, res)); }
2331 void mul (LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_mul, left, right, res, tmp)); }
2332 void div (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_div, left, right, res, info)); }
2333 void div (LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_div, left, right, res, tmp)); }
2334 void rem (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_rem, left, right, res, info)); }
2335
2336 void volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2337 void volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code);
2338
2339 void load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none);
2340
2341 void store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2342 void store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2343 void store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none);
2344 void volatile_store_mem_reg(LIR_Opr src, LIR_Address* address, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2345 void volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code);
2346
2347 void idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2348 void idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2349 void irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2350 void irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2351
2352 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);
2353 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);
2354
2355 // jump is an unconditional branch
2356 void jump(BlockBegin* block) {
2357 append(new LIR_OpBranch(lir_cond_always, block));
2358 }
2359 void jump(CodeStub* stub) {
2360 append(new LIR_OpBranch(lir_cond_always, stub));
2361 }
2362 void branch(LIR_Condition cond, Label* lbl) {
2363 append(new LIR_OpBranch(cond, lbl));
2364 }
2365 // Should not be used for fp comparisons
2366 void branch(LIR_Condition cond, BlockBegin* block) {
2367 append(new LIR_OpBranch(cond, block));
2368 }
2369 // Should not be used for fp comparisons
2370 void branch(LIR_Condition cond, CodeStub* stub) {
2371 append(new LIR_OpBranch(cond, stub));
2372 }
2373 // Should only be used for fp comparisons
2374 void branch(LIR_Condition cond, BlockBegin* block, BlockBegin* unordered) {
2375 append(new LIR_OpBranch(cond, block, unordered));
2376 }
2377
2378 void shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
2379 void shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
2380 void unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
2381
2382 void shift_left(LIR_Opr value, int count, LIR_Opr dst) { shift_left(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2383 void shift_right(LIR_Opr value, int count, LIR_Opr dst) { shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2384 void unsigned_shift_right(LIR_Opr value, int count, LIR_Opr dst) { unsigned_shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2385
2386 void lcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_cmp_l2i, left, right, dst)); }
2387 void fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less);
2388
2389 void call_runtime_leaf(address routine, LIR_Opr tmp, LIR_Opr result, LIR_OprList* arguments) {
2390 append(new LIR_OpRTCall(routine, tmp, result, arguments));
2391 }
2392
2393 void call_runtime(address routine, LIR_Opr tmp, LIR_Opr result,
2394 LIR_OprList* arguments, CodeEmitInfo* info) {
2395 append(new LIR_OpRTCall(routine, tmp, result, arguments, info));
2396 }
2397
2398 void load_stack_address_monitor(int monitor_ix, LIR_Opr dst) { append(new LIR_Op1(lir_monaddr, LIR_OprFact::intConst(monitor_ix), dst)); }
2399 void unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub);
2400 void lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info, CodeStub* throw_imse_stub=NULL);
2401
2402 void breakpoint() { append(new LIR_Op0(lir_breakpoint)); }
2403
2404 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)); }
2405
2406 void update_crc32(LIR_Opr crc, LIR_Opr val, LIR_Opr res) { append(new LIR_OpUpdateCRC32(crc, val, res)); }
2407
2408 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);
2409 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);
2410 void check_flattened_array(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub);
2411 void check_null_free_array(LIR_Opr array, LIR_Opr tmp);
2412 void substitutability_check(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result,
2413 LIR_Opr tmp1, LIR_Opr tmp2,
2414 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op,
2415 CodeEmitInfo* info, CodeStub* stub);
2416
2417 void checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
2418 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
2419 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
2420 ciMethod* profiled_method, int profiled_bci, bool is_null_free);
2421 // MethodData* profiling
2422 void profile_call(ciMethod* method, int bci, ciMethod* callee, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* cha_klass) {
2423 append(new LIR_OpProfileCall(method, bci, callee, mdo, recv, t1, cha_klass));
2424 }
2425 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) {
2426 append(new LIR_OpProfileType(LIR_OprFact::address(mdp), obj, exact_klass, current_klass, tmp, not_null, no_conflict));
2427 }
2428 void profile_inline_type(LIR_Address* mdp, LIR_Opr obj, int flag, LIR_Opr tmp, bool not_null) {
2429 append(new LIR_OpProfileInlineType(LIR_OprFact::address(mdp), obj, flag, tmp, not_null));
2430 }
2431
2432 void xadd(LIR_Opr src, LIR_Opr add, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_xadd, src, add, res, tmp)); }
2433 void xchg(LIR_Opr src, LIR_Opr set, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_xchg, src, set, res, tmp)); }
2434
2435 void load_klass(LIR_Opr obj, LIR_Opr result, CodeEmitInfo* info) { append(new LIR_OpLoadKlass(obj, result, info)); }
2436
2437 #ifdef ASSERT
2438 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)); }
2439 #endif
2440 };
2441
2442 void print_LIR(BlockList* blocks);
2443
2444 class LIR_InsertionBuffer : public CompilationResourceObj {
2445 private:
2446 LIR_List* _lir; // the lir list where ops of this buffer should be inserted later (NULL when uninitialized)
2447
2448 // list of insertion points. index and count are stored alternately:
2449 // _index_and_count[i * 2]: the index into lir list where "count" ops should be inserted
2450 // _index_and_count[i * 2 + 1]: the number of ops to be inserted at index
2451 intStack _index_and_count;
2452
2453 // the LIR_Ops to be inserted
2454 LIR_OpList _ops;
2455
2456 void append_new(int index, int count) { _index_and_count.append(index); _index_and_count.append(count); }
2457 void set_index_at(int i, int value) { _index_and_count.at_put((i << 1), value); }
2458 void set_count_at(int i, int value) { _index_and_count.at_put((i << 1) + 1, value); }
2459
2460 #ifdef ASSERT
2461 void verify();
2462 #endif
2463 public:
2464 LIR_InsertionBuffer() : _lir(NULL), _index_and_count(8), _ops(8) { }
2465
2466 // must be called before using the insertion buffer
2467 void init(LIR_List* lir) { assert(!initialized(), "already initialized"); _lir = lir; _index_and_count.clear(); _ops.clear(); }
2468 bool initialized() const { return _lir != NULL; }
2469 // called automatically when the buffer is appended to the LIR_List
2470 void finish() { _lir = NULL; }
2471
2472 // accessors
2473 LIR_List* lir_list() const { return _lir; }
2474 int number_of_insertion_points() const { return _index_and_count.length() >> 1; }
2475 int index_at(int i) const { return _index_and_count.at((i << 1)); }
2476 int count_at(int i) const { return _index_and_count.at((i << 1) + 1); }
2477
2478 int number_of_ops() const { return _ops.length(); }
2479 LIR_Op* op_at(int i) const { return _ops.at(i); }
2480
2481 // append an instruction to the buffer
2482 void append(int index, LIR_Op* op);
2483
2484 // instruction
2485 void move(int index, LIR_Opr src, LIR_Opr dst, CodeEmitInfo* info = NULL) { append(index, new LIR_Op1(lir_move, src, dst, dst->type(), lir_patch_none, info)); }
2486 };
2487
2488
2489 //
2490 // LIR_OpVisitState is used for manipulating LIR_Ops in an abstract way.
2491 // Calling a LIR_Op's visit function with a LIR_OpVisitState causes
2492 // information about the input, output and temporaries used by the
2493 // op to be recorded. It also records whether the op has call semantics
2494 // and also records all the CodeEmitInfos used by this op.
2495 //
2496
2497
2498 class LIR_OpVisitState: public StackObj {
2499 public:
2500 typedef enum { inputMode, firstMode = inputMode, tempMode, outputMode, numModes, invalidMode = -1 } OprMode;
2501
2502 enum {
2503 maxNumberOfOperands = 20,
2504 maxNumberOfInfos = 4
2505 };
2506
2507 private:
2508 LIR_Op* _op;
2509
2510 // optimization: the operands and infos are not stored in a variable-length
2511 // list, but in a fixed-size array to save time of size checks and resizing
2512 int _oprs_len[numModes];
2513 LIR_Opr* _oprs_new[numModes][maxNumberOfOperands];
2514 int _info_len;
2515 CodeEmitInfo* _info_new[maxNumberOfInfos];
2516
2517 bool _has_call;
2518 bool _has_slow_case;
2519
2520
2521 // only include register operands
2522 // addresses are decomposed to the base and index registers
2523 // constants and stack operands are ignored
2524 void append(LIR_Opr& opr, OprMode mode) {
2525 assert(opr->is_valid(), "should not call this otherwise");
2526 assert(mode >= 0 && mode < numModes, "bad mode");
2527
2528 if (opr->is_register()) {
2529 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
2530 _oprs_new[mode][_oprs_len[mode]++] = &opr;
2531
2532 } else if (opr->is_pointer()) {
2533 LIR_Address* address = opr->as_address_ptr();
2534 if (address != NULL) {
2535 // special handling for addresses: add base and index register of the address
2536 // both are always input operands or temp if we want to extend
2537 // their liveness!
2538 if (mode == outputMode) {
2539 mode = inputMode;
2540 }
2541 assert (mode == inputMode || mode == tempMode, "input or temp only for addresses");
2542 if (address->_base->is_valid()) {
2543 assert(address->_base->is_register(), "must be");
2544 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
2545 _oprs_new[mode][_oprs_len[mode]++] = &address->_base;
2546 }
2547 if (address->_index->is_valid()) {
2548 assert(address->_index->is_register(), "must be");
2549 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
2550 _oprs_new[mode][_oprs_len[mode]++] = &address->_index;
2551 }
2552
2553 } else {
2554 assert(opr->is_constant(), "constant operands are not processed");
2555 }
2556 } else {
2557 assert(opr->is_stack(), "stack operands are not processed");
2558 }
2559 }
2560
2561 void append(CodeEmitInfo* info) {
2562 assert(info != NULL, "should not call this otherwise");
2563 assert(_info_len < maxNumberOfInfos, "array overflow");
2564 _info_new[_info_len++] = info;
2565 }
2566
2567 public:
2568 LIR_OpVisitState() { reset(); }
2569
2570 LIR_Op* op() const { return _op; }
2571 void set_op(LIR_Op* op) { reset(); _op = op; }
2572
2573 bool has_call() const { return _has_call; }
2574 bool has_slow_case() const { return _has_slow_case; }
2575
2576 void reset() {
2577 _op = NULL;
2578 _has_call = false;
2579 _has_slow_case = false;
2580
2581 _oprs_len[inputMode] = 0;
2582 _oprs_len[tempMode] = 0;
2583 _oprs_len[outputMode] = 0;
2584 _info_len = 0;
2585 }
2586
2587
2588 int opr_count(OprMode mode) const {
2589 assert(mode >= 0 && mode < numModes, "bad mode");
2590 return _oprs_len[mode];
2591 }
2592
2593 LIR_Opr opr_at(OprMode mode, int index) const {
2594 assert(mode >= 0 && mode < numModes, "bad mode");
2595 assert(index >= 0 && index < _oprs_len[mode], "index out of bound");
2596 return *_oprs_new[mode][index];
2597 }
2598
2599 void set_opr_at(OprMode mode, int index, LIR_Opr opr) const {
2600 assert(mode >= 0 && mode < numModes, "bad mode");
2601 assert(index >= 0 && index < _oprs_len[mode], "index out of bound");
2602 *_oprs_new[mode][index] = opr;
2603 }
2604
2605 int info_count() const {
2606 return _info_len;
2607 }
2608
2609 CodeEmitInfo* info_at(int index) const {
2610 assert(index < _info_len, "index out of bounds");
2611 return _info_new[index];
2612 }
2613
2614 XHandlers* all_xhandler();
2615
2616 // collects all register operands of the instruction
2617 void visit(LIR_Op* op);
2618
2619 #ifdef ASSERT
2620 // check that an operation has no operands
2621 bool no_operands(LIR_Op* op);
2622 #endif
2623
2624 // LIR_Op visitor functions use these to fill in the state
2625 void do_input(LIR_Opr& opr) { append(opr, LIR_OpVisitState::inputMode); }
2626 void do_output(LIR_Opr& opr) { append(opr, LIR_OpVisitState::outputMode); }
2627 void do_temp(LIR_Opr& opr) { append(opr, LIR_OpVisitState::tempMode); }
2628 void do_info(CodeEmitInfo* info) { append(info); }
2629
2630 void do_stub(CodeStub* stub);
2631 void do_call() { _has_call = true; }
2632 void do_slow_case() { _has_slow_case = true; }
2633 void do_slow_case(CodeEmitInfo* info) {
2634 _has_slow_case = true;
2635 append(info);
2636 }
2637 };
2638
2639
2640 inline LIR_Opr LIR_Opr::illegalOpr() { return LIR_OprFact::illegalOpr; };
2641
2642 inline LIR_Opr LIR_Opr::nullOpr() { return LIR_OprFact::nullOpr; };
2643
2644 #endif // SHARE_C1_C1_LIR_HPP