1 /*
2 * Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_C1_C1_LIR_HPP
26 #define SHARE_C1_C1_LIR_HPP
27
28 #include "c1/c1_Defs.hpp"
29 #include "c1/c1_ValueType.hpp"
30 #include "oops/method.hpp"
31 #include "utilities/globalDefinitions.hpp"
32
33 class BlockBegin;
34 class BlockList;
35 class LIR_Assembler;
36 class CodeEmitInfo;
37 class CodeStub;
38 class CodeStubList;
39 class ArrayCopyStub;
40 class LIR_Op;
41 class ciType;
42 class ValueType;
43 class LIR_OpVisitState;
44 class FpuStackSim;
45
46 //---------------------------------------------------------------------
47 // LIR Operands
48 // LIR_OprDesc
49 // LIR_OprPtr
50 // LIR_Const
51 // LIR_Address
52 //---------------------------------------------------------------------
53 class LIR_OprDesc;
54 class LIR_OprPtr;
55 class LIR_Const;
56 class LIR_Address;
57 class LIR_OprVisitor;
58
59
60 typedef LIR_OprDesc* LIR_Opr;
61 typedef int RegNr;
62
63 typedef GrowableArray<LIR_Opr> LIR_OprList;
64 typedef GrowableArray<LIR_Op*> LIR_OpArray;
65 typedef GrowableArray<LIR_Op*> LIR_OpList;
66
67 // define LIR_OprPtr early so LIR_OprDesc can refer to it
68 class LIR_OprPtr: public CompilationResourceObj {
69 public:
70 bool is_oop_pointer() const { return (type() == T_OBJECT); }
71 bool is_float_kind() const { BasicType t = type(); return (t == T_FLOAT) || (t == T_DOUBLE); }
72
73 virtual LIR_Const* as_constant() { return NULL; }
74 virtual LIR_Address* as_address() { return NULL; }
75 virtual BasicType type() const = 0;
76 virtual void print_value_on(outputStream* out) const = 0;
77 };
78
79
80
81 // LIR constants
82 class LIR_Const: public LIR_OprPtr {
83 private:
84 JavaValue _value;
85
86 void type_check(BasicType t) const { assert(type() == t, "type check"); }
87 void type_check(BasicType t1, BasicType t2) const { assert(type() == t1 || type() == t2, "type check"); }
88 void type_check(BasicType t1, BasicType t2, BasicType t3) const { assert(type() == t1 || type() == t2 || type() == t3, "type check"); }
89
90 public:
91 LIR_Const(jint i, bool is_address=false) { _value.set_type(is_address?T_ADDRESS:T_INT); _value.set_jint(i); }
92 LIR_Const(jlong l) { _value.set_type(T_LONG); _value.set_jlong(l); }
93 LIR_Const(jfloat f) { _value.set_type(T_FLOAT); _value.set_jfloat(f); }
94 LIR_Const(jdouble d) { _value.set_type(T_DOUBLE); _value.set_jdouble(d); }
95 LIR_Const(jobject o) { _value.set_type(T_OBJECT); _value.set_jobject(o); }
96 LIR_Const(void* p) {
97 #ifdef _LP64
98 assert(sizeof(jlong) >= sizeof(p), "too small");;
99 _value.set_type(T_LONG); _value.set_jlong((jlong)p);
100 #else
101 assert(sizeof(jint) >= sizeof(p), "too small");;
102 _value.set_type(T_INT); _value.set_jint((jint)p);
103 #endif
104 }
105 LIR_Const(Metadata* m) {
106 _value.set_type(T_METADATA);
107 #ifdef _LP64
108 _value.set_jlong((jlong)m);
109 #else
110 _value.set_jint((jint)m);
111 #endif // _LP64
112 }
113
114 virtual BasicType type() const { return _value.get_type(); }
115 virtual LIR_Const* as_constant() { return this; }
116
117 jint as_jint() const { type_check(T_INT, T_ADDRESS); return _value.get_jint(); }
118 jlong as_jlong() const { type_check(T_LONG ); return _value.get_jlong(); }
119 jfloat as_jfloat() const { type_check(T_FLOAT ); return _value.get_jfloat(); }
120 jdouble as_jdouble() const { type_check(T_DOUBLE); return _value.get_jdouble(); }
121 jobject as_jobject() const { type_check(T_OBJECT); return _value.get_jobject(); }
122 jint as_jint_lo() const { type_check(T_LONG ); return low(_value.get_jlong()); }
123 jint as_jint_hi() const { type_check(T_LONG ); return high(_value.get_jlong()); }
124
125 #ifdef _LP64
126 address as_pointer() const { type_check(T_LONG ); return (address)_value.get_jlong(); }
127 Metadata* as_metadata() const { type_check(T_METADATA); return (Metadata*)_value.get_jlong(); }
128 #else
129 address as_pointer() const { type_check(T_INT ); return (address)_value.get_jint(); }
130 Metadata* as_metadata() const { type_check(T_METADATA); return (Metadata*)_value.get_jint(); }
131 #endif
132
133
134 jint as_jint_bits() const { type_check(T_FLOAT, T_INT, T_ADDRESS); return _value.get_jint(); }
135 jint as_jint_lo_bits() const {
136 if (type() == T_DOUBLE) {
137 return low(jlong_cast(_value.get_jdouble()));
138 } else {
139 return as_jint_lo();
140 }
141 }
142 jint as_jint_hi_bits() const {
143 if (type() == T_DOUBLE) {
144 return high(jlong_cast(_value.get_jdouble()));
145 } else {
146 return as_jint_hi();
147 }
148 }
149 jlong as_jlong_bits() const {
150 if (type() == T_DOUBLE) {
151 return jlong_cast(_value.get_jdouble());
152 } else {
153 return as_jlong();
154 }
155 }
156
157 virtual void print_value_on(outputStream* out) const PRODUCT_RETURN;
158
159
160 bool is_zero_float() {
161 jfloat f = as_jfloat();
162 jfloat ok = 0.0f;
163 return jint_cast(f) == jint_cast(ok);
164 }
165
166 bool is_one_float() {
167 jfloat f = as_jfloat();
168 return !g_isnan(f) && g_isfinite(f) && f == 1.0;
169 }
170
171 bool is_zero_double() {
172 jdouble d = as_jdouble();
173 jdouble ok = 0.0;
174 return jlong_cast(d) == jlong_cast(ok);
175 }
176
177 bool is_one_double() {
178 jdouble d = as_jdouble();
179 return !g_isnan(d) && g_isfinite(d) && d == 1.0;
180 }
181 };
182
183
184 //---------------------LIR Operand descriptor------------------------------------
185 //
186 // The class LIR_OprDesc represents a LIR instruction operand;
187 // it can be a register (ALU/FPU), stack location or a constant;
188 // Constants and addresses are represented as resource area allocated
189 // structures (see above).
190 // Registers and stack locations are inlined into the this pointer
191 // (see value function).
192
193 class LIR_OprDesc: public CompilationResourceObj {
194 public:
195 // value structure:
196 // data opr-type opr-kind
197 // +--------------+-------+-------+
198 // [max...........|7 6 5 4|3 2 1 0]
199 // ^
200 // is_pointer bit
201 //
202 // lowest bit cleared, means it is a structure pointer
203 // we need 4 bits to represent types
204
205 private:
206 friend class LIR_OprFact;
207
208 // Conversion
209 intptr_t value() const { return (intptr_t) this; }
210
211 bool check_value_mask(intptr_t mask, intptr_t masked_value) const {
212 return (value() & mask) == masked_value;
213 }
214
215 enum OprKind {
216 pointer_value = 0
217 , stack_value = 1
218 , cpu_register = 3
219 , fpu_register = 5
220 , illegal_value = 7
221 };
222
223 enum OprBits {
224 pointer_bits = 1
225 , kind_bits = 3
226 , type_bits = 4
227 , size_bits = 2
228 , destroys_bits = 1
229 , virtual_bits = 1
230 , is_xmm_bits = 1
231 , last_use_bits = 1
232 , is_fpu_stack_offset_bits = 1 // used in assertion checking on x86 for FPU stack slot allocation
233 , non_data_bits = kind_bits + type_bits + size_bits + destroys_bits + last_use_bits +
234 is_fpu_stack_offset_bits + virtual_bits + is_xmm_bits
235 , data_bits = BitsPerInt - non_data_bits
236 , reg_bits = data_bits / 2 // for two registers in one value encoding
237 };
238
239 enum OprShift {
240 kind_shift = 0
241 , type_shift = kind_shift + kind_bits
242 , size_shift = type_shift + type_bits
243 , destroys_shift = size_shift + size_bits
244 , last_use_shift = destroys_shift + destroys_bits
245 , is_fpu_stack_offset_shift = last_use_shift + last_use_bits
246 , virtual_shift = is_fpu_stack_offset_shift + is_fpu_stack_offset_bits
247 , is_xmm_shift = virtual_shift + virtual_bits
248 , data_shift = is_xmm_shift + is_xmm_bits
249 , reg1_shift = data_shift
250 , reg2_shift = data_shift + reg_bits
251
252 };
253
254 enum OprSize {
255 single_size = 0 << size_shift
256 , double_size = 1 << size_shift
257 };
258
259 enum OprMask {
260 kind_mask = right_n_bits(kind_bits)
261 , type_mask = right_n_bits(type_bits) << type_shift
262 , size_mask = right_n_bits(size_bits) << size_shift
263 , last_use_mask = right_n_bits(last_use_bits) << last_use_shift
264 , is_fpu_stack_offset_mask = right_n_bits(is_fpu_stack_offset_bits) << is_fpu_stack_offset_shift
265 , virtual_mask = right_n_bits(virtual_bits) << virtual_shift
266 , is_xmm_mask = right_n_bits(is_xmm_bits) << is_xmm_shift
267 , pointer_mask = right_n_bits(pointer_bits)
268 , lower_reg_mask = right_n_bits(reg_bits)
269 , no_type_mask = (int)(~(type_mask | last_use_mask | is_fpu_stack_offset_mask))
270 };
271
272 uintptr_t data() const { return value() >> data_shift; }
273 int lo_reg_half() const { return data() & lower_reg_mask; }
274 int hi_reg_half() const { return (data() >> reg_bits) & lower_reg_mask; }
275 OprKind kind_field() const { return (OprKind)(value() & kind_mask); }
276 OprSize size_field() const { return (OprSize)(value() & size_mask); }
277
278 static char type_char(BasicType t);
279
280 public:
281 enum {
282 vreg_base = ConcreteRegisterImpl::number_of_registers,
283 vreg_max = (1 << data_bits) - 1
284 };
285
286 static inline LIR_Opr illegalOpr();
287
288 enum OprType {
289 unknown_type = 0 << type_shift // means: not set (catch uninitialized types)
290 , int_type = 1 << type_shift
291 , long_type = 2 << type_shift
292 , object_type = 3 << type_shift
293 , address_type = 4 << type_shift
294 , float_type = 5 << type_shift
295 , double_type = 6 << type_shift
296 , metadata_type = 7 << type_shift
297 };
298 friend OprType as_OprType(BasicType t);
299 friend BasicType as_BasicType(OprType t);
300
301 OprType type_field_valid() const { assert(is_register() || is_stack(), "should not be called otherwise"); return (OprType)(value() & type_mask); }
302 OprType type_field() const { return is_illegal() ? unknown_type : (OprType)(value() & type_mask); }
303
304 static OprSize size_for(BasicType t) {
305 switch (t) {
306 case T_LONG:
307 case T_DOUBLE:
308 return double_size;
309 break;
310
311 case T_FLOAT:
312 case T_BOOLEAN:
313 case T_CHAR:
314 case T_BYTE:
315 case T_SHORT:
316 case T_INT:
317 case T_ADDRESS:
318 case T_OBJECT:
319 case T_VALUETYPE:
320 case T_ARRAY:
321 case T_METADATA:
322 return single_size;
323 break;
324
325 default:
326 ShouldNotReachHere();
327 return single_size;
328 }
329 }
330
331
332 void validate_type() const PRODUCT_RETURN;
333
334 BasicType type() const {
335 if (is_pointer()) {
336 return pointer()->type();
337 }
338 return as_BasicType(type_field());
339 }
340
341
342 ValueType* value_type() const { return as_ValueType(type()); }
343
344 char type_char() const { return type_char((is_pointer()) ? pointer()->type() : type()); }
345
346 bool is_equal(LIR_Opr opr) const { return this == opr; }
347 // checks whether types are same
348 bool is_same_type(LIR_Opr opr) const {
349 assert(type_field() != unknown_type &&
350 opr->type_field() != unknown_type, "shouldn't see unknown_type");
351 return type_field() == opr->type_field();
352 }
353 bool is_same_register(LIR_Opr opr) {
354 return (is_register() && opr->is_register() &&
355 kind_field() == opr->kind_field() &&
356 (value() & no_type_mask) == (opr->value() & no_type_mask));
357 }
358
359 bool is_pointer() const { return check_value_mask(pointer_mask, pointer_value); }
360 bool is_illegal() const { return kind_field() == illegal_value; }
361 bool is_valid() const { return kind_field() != illegal_value; }
362
363 bool is_register() const { return is_cpu_register() || is_fpu_register(); }
364 bool is_virtual() const { return is_virtual_cpu() || is_virtual_fpu(); }
365
366 bool is_constant() const { return is_pointer() && pointer()->as_constant() != NULL; }
367 bool is_address() const { return is_pointer() && pointer()->as_address() != NULL; }
368
369 bool is_float_kind() const { return is_pointer() ? pointer()->is_float_kind() : (kind_field() == fpu_register); }
370 bool is_oop() const;
371
372 // semantic for fpu- and xmm-registers:
373 // * is_float and is_double return true for xmm_registers
374 // (so is_single_fpu and is_single_xmm are true)
375 // * So you must always check for is_???_xmm prior to is_???_fpu to
376 // distinguish between fpu- and xmm-registers
377
378 bool is_stack() const { validate_type(); return check_value_mask(kind_mask, stack_value); }
379 bool is_single_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | single_size); }
380 bool is_double_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | double_size); }
381
382 bool is_cpu_register() const { validate_type(); return check_value_mask(kind_mask, cpu_register); }
383 bool is_virtual_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register | virtual_mask); }
384 bool is_fixed_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register); }
385 bool is_single_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | single_size); }
386 bool is_double_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | double_size); }
387
388 bool is_fpu_register() const { validate_type(); return check_value_mask(kind_mask, fpu_register); }
389 bool is_virtual_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register | virtual_mask); }
390 bool is_fixed_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register); }
391 bool is_single_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | single_size); }
392 bool is_double_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | double_size); }
393
394 bool is_xmm_register() const { validate_type(); return check_value_mask(kind_mask | is_xmm_mask, fpu_register | is_xmm_mask); }
395 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); }
396 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); }
397
398 // fast accessor functions for special bits that do not work for pointers
399 // (in this functions, the check for is_pointer() is omitted)
400 bool is_single_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, single_size); }
401 bool is_double_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, double_size); }
402 bool is_virtual_register() const { assert(is_register(), "type check"); return check_value_mask(virtual_mask, virtual_mask); }
403 bool is_oop_register() const { assert(is_register() || is_stack(), "type check"); return type_field_valid() == object_type; }
404 BasicType type_register() const { assert(is_register() || is_stack(), "type check"); return as_BasicType(type_field_valid()); }
405
406 bool is_last_use() const { assert(is_register(), "only works for registers"); return (value() & last_use_mask) != 0; }
407 bool is_fpu_stack_offset() const { assert(is_register(), "only works for registers"); return (value() & is_fpu_stack_offset_mask) != 0; }
408 LIR_Opr make_last_use() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | last_use_mask); }
409 LIR_Opr make_fpu_stack_offset() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | is_fpu_stack_offset_mask); }
410
411
412 int single_stack_ix() const { assert(is_single_stack() && !is_virtual(), "type check"); return (int)data(); }
413 int double_stack_ix() const { assert(is_double_stack() && !is_virtual(), "type check"); return (int)data(); }
414 RegNr cpu_regnr() const { assert(is_single_cpu() && !is_virtual(), "type check"); return (RegNr)data(); }
415 RegNr cpu_regnrLo() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
416 RegNr cpu_regnrHi() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
417 RegNr fpu_regnr() const { assert(is_single_fpu() && !is_virtual(), "type check"); return (RegNr)data(); }
418 RegNr fpu_regnrLo() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
419 RegNr fpu_regnrHi() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
420 RegNr xmm_regnr() const { assert(is_single_xmm() && !is_virtual(), "type check"); return (RegNr)data(); }
421 RegNr xmm_regnrLo() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
422 RegNr xmm_regnrHi() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
423 int vreg_number() const { assert(is_virtual(), "type check"); return (RegNr)data(); }
424
425 LIR_OprPtr* pointer() const { assert(is_pointer(), "type check"); return (LIR_OprPtr*)this; }
426 LIR_Const* as_constant_ptr() const { return pointer()->as_constant(); }
427 LIR_Address* as_address_ptr() const { return pointer()->as_address(); }
428
429 Register as_register() const;
430 Register as_register_lo() const;
431 Register as_register_hi() const;
432
433 Register as_pointer_register() {
434 #ifdef _LP64
435 if (is_double_cpu()) {
436 assert(as_register_lo() == as_register_hi(), "should be a single register");
437 return as_register_lo();
438 }
439 #endif
440 return as_register();
441 }
442
443 FloatRegister as_float_reg () const;
444 FloatRegister as_double_reg () const;
445 #ifdef X86
446 XMMRegister as_xmm_float_reg () const;
447 XMMRegister as_xmm_double_reg() const;
448 // for compatibility with RInfo
449 int fpu() const { return lo_reg_half(); }
450 #endif
451
452 jint as_jint() const { return as_constant_ptr()->as_jint(); }
453 jlong as_jlong() const { return as_constant_ptr()->as_jlong(); }
454 jfloat as_jfloat() const { return as_constant_ptr()->as_jfloat(); }
455 jdouble as_jdouble() const { return as_constant_ptr()->as_jdouble(); }
456 jobject as_jobject() const { return as_constant_ptr()->as_jobject(); }
457
458 void print() const PRODUCT_RETURN;
459 void print(outputStream* out) const PRODUCT_RETURN;
460 };
461
462
463 inline LIR_OprDesc::OprType as_OprType(BasicType type) {
464 switch (type) {
465 case T_INT: return LIR_OprDesc::int_type;
466 case T_LONG: return LIR_OprDesc::long_type;
467 case T_FLOAT: return LIR_OprDesc::float_type;
468 case T_DOUBLE: return LIR_OprDesc::double_type;
469 case T_OBJECT:
470 case T_VALUETYPE:
471 case T_ARRAY: return LIR_OprDesc::object_type;
472 case T_ADDRESS: return LIR_OprDesc::address_type;
473 case T_METADATA: return LIR_OprDesc::metadata_type;
474 case T_ILLEGAL: // fall through
475 default: ShouldNotReachHere(); return LIR_OprDesc::unknown_type;
476 }
477 }
478
479 inline BasicType as_BasicType(LIR_OprDesc::OprType t) {
480 switch (t) {
481 case LIR_OprDesc::int_type: return T_INT;
482 case LIR_OprDesc::long_type: return T_LONG;
483 case LIR_OprDesc::float_type: return T_FLOAT;
484 case LIR_OprDesc::double_type: return T_DOUBLE;
485 case LIR_OprDesc::object_type: return T_OBJECT;
486 case LIR_OprDesc::address_type: return T_ADDRESS;
487 case LIR_OprDesc::metadata_type:return T_METADATA;
488 case LIR_OprDesc::unknown_type: // fall through
489 default: ShouldNotReachHere(); return T_ILLEGAL;
490 }
491 }
492
493
494 // LIR_Address
495 class LIR_Address: public LIR_OprPtr {
496 friend class LIR_OpVisitState;
497
498 public:
499 // NOTE: currently these must be the log2 of the scale factor (and
500 // must also be equivalent to the ScaleFactor enum in
501 // assembler_i486.hpp)
502 enum Scale {
503 times_1 = 0,
504 times_2 = 1,
505 times_4 = 2,
506 times_8 = 3
507 };
508
509 private:
510 LIR_Opr _base;
511 LIR_Opr _index;
512 Scale _scale;
513 intx _disp;
514 BasicType _type;
515
516 public:
517 LIR_Address(LIR_Opr base, LIR_Opr index, BasicType type):
518 _base(base)
519 , _index(index)
520 , _scale(times_1)
521 , _disp(0)
522 , _type(type) { verify(); }
523
524 LIR_Address(LIR_Opr base, intx disp, BasicType type):
525 _base(base)
526 , _index(LIR_OprDesc::illegalOpr())
527 , _scale(times_1)
528 , _disp(disp)
529 , _type(type) { verify(); }
530
531 LIR_Address(LIR_Opr base, BasicType type):
532 _base(base)
533 , _index(LIR_OprDesc::illegalOpr())
534 , _scale(times_1)
535 , _disp(0)
536 , _type(type) { verify(); }
537
538 LIR_Address(LIR_Opr base, LIR_Opr index, intx disp, BasicType type):
539 _base(base)
540 , _index(index)
541 , _scale(times_1)
542 , _disp(disp)
543 , _type(type) { verify(); }
544
545 LIR_Address(LIR_Opr base, LIR_Opr index, Scale scale, intx disp, BasicType type):
546 _base(base)
547 , _index(index)
548 , _scale(scale)
549 , _disp(disp)
550 , _type(type) { verify(); }
551
552 LIR_Opr base() const { return _base; }
553 LIR_Opr index() const { return _index; }
554 Scale scale() const { return _scale; }
555 intx disp() const { return _disp; }
556
557 bool equals(LIR_Address* other) const { return base() == other->base() && index() == other->index() && disp() == other->disp() && scale() == other->scale(); }
558
559 virtual LIR_Address* as_address() { return this; }
560 virtual BasicType type() const { return _type; }
561 virtual void print_value_on(outputStream* out) const PRODUCT_RETURN;
562
563 void verify() const PRODUCT_RETURN;
564
565 static Scale scale(BasicType type);
566 };
567
568
569 // operand factory
570 class LIR_OprFact: public AllStatic {
571 public:
572
573 static LIR_Opr illegalOpr;
574
575 static LIR_Opr single_cpu(int reg) {
576 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
577 LIR_OprDesc::int_type |
578 LIR_OprDesc::cpu_register |
579 LIR_OprDesc::single_size);
580 }
581 static LIR_Opr single_cpu_oop(int reg) {
582 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
583 LIR_OprDesc::object_type |
584 LIR_OprDesc::cpu_register |
585 LIR_OprDesc::single_size);
586 }
587 static LIR_Opr single_cpu_address(int reg) {
588 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
589 LIR_OprDesc::address_type |
590 LIR_OprDesc::cpu_register |
591 LIR_OprDesc::single_size);
592 }
593 static LIR_Opr single_cpu_metadata(int reg) {
594 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
595 LIR_OprDesc::metadata_type |
596 LIR_OprDesc::cpu_register |
597 LIR_OprDesc::single_size);
598 }
599 static LIR_Opr double_cpu(int reg1, int reg2) {
600 LP64_ONLY(assert(reg1 == reg2, "must be identical"));
601 return (LIR_Opr)(intptr_t)((reg1 << LIR_OprDesc::reg1_shift) |
602 (reg2 << LIR_OprDesc::reg2_shift) |
603 LIR_OprDesc::long_type |
604 LIR_OprDesc::cpu_register |
605 LIR_OprDesc::double_size);
606 }
607
608 static LIR_Opr single_fpu(int reg) {
609 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
610 LIR_OprDesc::float_type |
611 LIR_OprDesc::fpu_register |
612 LIR_OprDesc::single_size);
613 }
614
615 // Platform dependant.
616 static LIR_Opr double_fpu(int reg1, int reg2 = -1 /*fnoreg*/);
617
618 #ifdef ARM32
619 static LIR_Opr single_softfp(int reg) {
620 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
621 LIR_OprDesc::float_type |
622 LIR_OprDesc::cpu_register |
623 LIR_OprDesc::single_size);
624 }
625 static LIR_Opr double_softfp(int reg1, int reg2) {
626 return (LIR_Opr)(intptr_t)((reg1 << LIR_OprDesc::reg1_shift) |
627 (reg2 << LIR_OprDesc::reg2_shift) |
628 LIR_OprDesc::double_type |
629 LIR_OprDesc::cpu_register |
630 LIR_OprDesc::double_size);
631 }
632 #endif // ARM32
633
634 #if defined(X86)
635 static LIR_Opr single_xmm(int reg) {
636 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
637 LIR_OprDesc::float_type |
638 LIR_OprDesc::fpu_register |
639 LIR_OprDesc::single_size |
640 LIR_OprDesc::is_xmm_mask);
641 }
642 static LIR_Opr double_xmm(int reg) {
643 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
644 (reg << LIR_OprDesc::reg2_shift) |
645 LIR_OprDesc::double_type |
646 LIR_OprDesc::fpu_register |
647 LIR_OprDesc::double_size |
648 LIR_OprDesc::is_xmm_mask);
649 }
650 #endif // X86
651
652 static LIR_Opr virtual_register(int index, BasicType type) {
653 LIR_Opr res;
654 switch (type) {
655 case T_OBJECT: // fall through
656 case T_VALUETYPE: // fall through
657 case T_ARRAY:
658 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
659 LIR_OprDesc::object_type |
660 LIR_OprDesc::cpu_register |
661 LIR_OprDesc::single_size |
662 LIR_OprDesc::virtual_mask);
663 break;
664
665 case T_METADATA:
666 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
667 LIR_OprDesc::metadata_type|
668 LIR_OprDesc::cpu_register |
669 LIR_OprDesc::single_size |
670 LIR_OprDesc::virtual_mask);
671 break;
672
673 case T_INT:
674 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
675 LIR_OprDesc::int_type |
676 LIR_OprDesc::cpu_register |
677 LIR_OprDesc::single_size |
678 LIR_OprDesc::virtual_mask);
679 break;
680
681 case T_ADDRESS:
682 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
683 LIR_OprDesc::address_type |
684 LIR_OprDesc::cpu_register |
685 LIR_OprDesc::single_size |
686 LIR_OprDesc::virtual_mask);
687 break;
688
689 case T_LONG:
690 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
691 LIR_OprDesc::long_type |
692 LIR_OprDesc::cpu_register |
693 LIR_OprDesc::double_size |
694 LIR_OprDesc::virtual_mask);
695 break;
696
697 #ifdef __SOFTFP__
698 case T_FLOAT:
699 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
700 LIR_OprDesc::float_type |
701 LIR_OprDesc::cpu_register |
702 LIR_OprDesc::single_size |
703 LIR_OprDesc::virtual_mask);
704 break;
705 case T_DOUBLE:
706 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
707 LIR_OprDesc::double_type |
708 LIR_OprDesc::cpu_register |
709 LIR_OprDesc::double_size |
710 LIR_OprDesc::virtual_mask);
711 break;
712 #else // __SOFTFP__
713 case T_FLOAT:
714 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
715 LIR_OprDesc::float_type |
716 LIR_OprDesc::fpu_register |
717 LIR_OprDesc::single_size |
718 LIR_OprDesc::virtual_mask);
719 break;
720
721 case
722 T_DOUBLE: res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
723 LIR_OprDesc::double_type |
724 LIR_OprDesc::fpu_register |
725 LIR_OprDesc::double_size |
726 LIR_OprDesc::virtual_mask);
727 break;
728 #endif // __SOFTFP__
729 default: ShouldNotReachHere(); res = illegalOpr;
730 }
731
732 #ifdef ASSERT
733 res->validate_type();
734 assert(res->vreg_number() == index, "conversion check");
735 assert(index >= LIR_OprDesc::vreg_base, "must start at vreg_base");
736 assert(index <= (max_jint >> LIR_OprDesc::data_shift), "index is too big");
737
738 // old-style calculation; check if old and new method are equal
739 LIR_OprDesc::OprType t = as_OprType(type);
740 #ifdef __SOFTFP__
741 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
742 t |
743 LIR_OprDesc::cpu_register |
744 LIR_OprDesc::size_for(type) | LIR_OprDesc::virtual_mask);
745 #else // __SOFTFP__
746 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | t |
747 ((type == T_FLOAT || type == T_DOUBLE) ? LIR_OprDesc::fpu_register : LIR_OprDesc::cpu_register) |
748 LIR_OprDesc::size_for(type) | LIR_OprDesc::virtual_mask);
749 assert(res == old_res, "old and new method not equal");
750 #endif // __SOFTFP__
751 #endif // ASSERT
752
753 return res;
754 }
755
756 // 'index' is computed by FrameMap::local_stack_pos(index); do not use other parameters as
757 // the index is platform independent; a double stack useing indeces 2 and 3 has always
758 // index 2.
759 static LIR_Opr stack(int index, BasicType type) {
760 LIR_Opr res;
761 switch (type) {
762 case T_VALUETYPE: // fall through
763 case T_OBJECT: // fall through
764 case T_ARRAY:
765 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
766 LIR_OprDesc::object_type |
767 LIR_OprDesc::stack_value |
768 LIR_OprDesc::single_size);
769 break;
770
771 case T_METADATA:
772 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
773 LIR_OprDesc::metadata_type |
774 LIR_OprDesc::stack_value |
775 LIR_OprDesc::single_size);
776 break;
777 case T_INT:
778 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
779 LIR_OprDesc::int_type |
780 LIR_OprDesc::stack_value |
781 LIR_OprDesc::single_size);
782 break;
783
784 case T_ADDRESS:
785 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
786 LIR_OprDesc::address_type |
787 LIR_OprDesc::stack_value |
788 LIR_OprDesc::single_size);
789 break;
790
791 case T_LONG:
792 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
793 LIR_OprDesc::long_type |
794 LIR_OprDesc::stack_value |
795 LIR_OprDesc::double_size);
796 break;
797
798 case T_FLOAT:
799 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
800 LIR_OprDesc::float_type |
801 LIR_OprDesc::stack_value |
802 LIR_OprDesc::single_size);
803 break;
804 case T_DOUBLE:
805 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
806 LIR_OprDesc::double_type |
807 LIR_OprDesc::stack_value |
808 LIR_OprDesc::double_size);
809 break;
810
811 default: ShouldNotReachHere(); res = illegalOpr;
812 }
813
814 #ifdef ASSERT
815 assert(index >= 0, "index must be positive");
816 assert(index <= (max_jint >> LIR_OprDesc::data_shift), "index is too big");
817
818 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
819 LIR_OprDesc::stack_value |
820 as_OprType(type) |
821 LIR_OprDesc::size_for(type));
822 assert(res == old_res, "old and new method not equal");
823 #endif
824
825 return res;
826 }
827
828 static LIR_Opr intConst(jint i) { return (LIR_Opr)(new LIR_Const(i)); }
829 static LIR_Opr longConst(jlong l) { return (LIR_Opr)(new LIR_Const(l)); }
830 static LIR_Opr floatConst(jfloat f) { return (LIR_Opr)(new LIR_Const(f)); }
831 static LIR_Opr doubleConst(jdouble d) { return (LIR_Opr)(new LIR_Const(d)); }
832 static LIR_Opr oopConst(jobject o) { return (LIR_Opr)(new LIR_Const(o)); }
833 static LIR_Opr address(LIR_Address* a) { return (LIR_Opr)a; }
834 static LIR_Opr intptrConst(void* p) { return (LIR_Opr)(new LIR_Const(p)); }
835 static LIR_Opr intptrConst(intptr_t v) { return (LIR_Opr)(new LIR_Const((void*)v)); }
836 static LIR_Opr illegal() { return (LIR_Opr)-1; }
837 static LIR_Opr addressConst(jint i) { return (LIR_Opr)(new LIR_Const(i, true)); }
838 static LIR_Opr metadataConst(Metadata* m) { return (LIR_Opr)(new LIR_Const(m)); }
839
840 static LIR_Opr value_type(ValueType* type);
841 static LIR_Opr dummy_value_type(ValueType* type);
842 };
843
844
845 //-------------------------------------------------------------------------------
846 // LIR Instructions
847 //-------------------------------------------------------------------------------
848 //
849 // Note:
850 // - every instruction has a result operand
851 // - every instruction has an CodeEmitInfo operand (can be revisited later)
852 // - every instruction has a LIR_OpCode operand
853 // - LIR_OpN, means an instruction that has N input operands
854 //
855 // class hierarchy:
856 //
857 class LIR_Op;
858 class LIR_Op0;
859 class LIR_OpLabel;
860 class LIR_Op1;
861 class LIR_OpBranch;
862 class LIR_OpConvert;
863 class LIR_OpAllocObj;
864 class LIR_OpRoundFP;
865 class LIR_Op2;
866 class LIR_OpDelay;
867 class LIR_Op3;
868 class LIR_OpAllocArray;
869 class LIR_OpCall;
870 class LIR_OpJavaCall;
871 class LIR_OpRTCall;
872 class LIR_OpArrayCopy;
873 class LIR_OpUpdateCRC32;
874 class LIR_OpLock;
875 class LIR_OpTypeCheck;
876 class LIR_OpCompareAndSwap;
877 class LIR_OpProfileCall;
878 class LIR_OpProfileType;
879 #ifdef ASSERT
880 class LIR_OpAssert;
881 #endif
882
883 // LIR operation codes
884 enum LIR_Code {
885 lir_none
886 , begin_op0
887 , lir_word_align
888 , lir_label
889 , lir_nop
890 , lir_backwardbranch_target
891 , lir_std_entry
892 , lir_osr_entry
893 , lir_build_frame
894 , lir_fpop_raw
895 , lir_24bit_FPU
896 , lir_reset_FPU
897 , lir_breakpoint
898 , lir_rtcall
899 , lir_membar
900 , lir_membar_acquire
901 , lir_membar_release
902 , lir_membar_loadload
903 , lir_membar_storestore
904 , lir_membar_loadstore
905 , lir_membar_storeload
906 , lir_get_thread
907 , lir_on_spin_wait
908 , end_op0
909 , begin_op1
910 , lir_fxch
911 , lir_fld
912 , lir_ffree
913 , lir_push
914 , lir_pop
915 , lir_null_check
916 , lir_return
917 , lir_leal
918 , lir_branch
919 , lir_cond_float_branch
920 , lir_move
921 , lir_convert
922 , lir_alloc_object
923 , lir_monaddr
924 , lir_roundfp
925 , lir_safepoint
926 , lir_pack64
927 , lir_unpack64
928 , lir_unwind
929 , end_op1
930 , begin_op2
931 , lir_cmp
932 , lir_cmp_l2i
933 , lir_ucmp_fd2i
934 , lir_cmp_fd2i
935 , lir_cmove
936 , lir_add
937 , lir_sub
938 , lir_mul
939 , lir_mul_strictfp
940 , lir_div
941 , lir_div_strictfp
942 , lir_rem
943 , lir_sqrt
944 , lir_abs
945 , lir_neg
946 , lir_tan
947 , lir_log10
948 , lir_logic_and
949 , lir_logic_or
950 , lir_logic_xor
951 , lir_shl
952 , lir_shr
953 , lir_ushr
954 , lir_alloc_array
955 , lir_throw
956 , lir_xadd
957 , lir_xchg
958 , end_op2
959 , begin_op3
960 , lir_idiv
961 , lir_irem
962 , lir_fmad
963 , lir_fmaf
964 , end_op3
965 , begin_opJavaCall
966 , lir_static_call
967 , lir_optvirtual_call
968 , lir_icvirtual_call
969 , lir_virtual_call
970 , lir_dynamic_call
971 , end_opJavaCall
972 , begin_opArrayCopy
973 , lir_arraycopy
974 , end_opArrayCopy
975 , begin_opUpdateCRC32
976 , lir_updatecrc32
977 , end_opUpdateCRC32
978 , begin_opLock
979 , lir_lock
980 , lir_unlock
981 , end_opLock
982 , begin_delay_slot
983 , lir_delay_slot
984 , end_delay_slot
985 , begin_opTypeCheck
986 , lir_instanceof
987 , lir_checkcast
988 , lir_store_check
989 , end_opTypeCheck
990 , begin_opCompareAndSwap
991 , lir_cas_long
992 , lir_cas_obj
993 , lir_cas_int
994 , end_opCompareAndSwap
995 , begin_opMDOProfile
996 , lir_profile_call
997 , lir_profile_type
998 , end_opMDOProfile
999 , begin_opAssert
1000 , lir_assert
1001 , end_opAssert
1002 };
1003
1004
1005 enum LIR_Condition {
1006 lir_cond_equal
1007 , lir_cond_notEqual
1008 , lir_cond_less
1009 , lir_cond_lessEqual
1010 , lir_cond_greaterEqual
1011 , lir_cond_greater
1012 , lir_cond_belowEqual
1013 , lir_cond_aboveEqual
1014 , lir_cond_always
1015 , lir_cond_unknown = -1
1016 };
1017
1018
1019 enum LIR_PatchCode {
1020 lir_patch_none,
1021 lir_patch_low,
1022 lir_patch_high,
1023 lir_patch_normal
1024 };
1025
1026
1027 enum LIR_MoveKind {
1028 lir_move_normal,
1029 lir_move_volatile,
1030 lir_move_unaligned,
1031 lir_move_wide,
1032 lir_move_max_flag
1033 };
1034
1035
1036 // --------------------------------------------------
1037 // LIR_Op
1038 // --------------------------------------------------
1039 class LIR_Op: public CompilationResourceObj {
1040 friend class LIR_OpVisitState;
1041
1042 #ifdef ASSERT
1043 private:
1044 const char * _file;
1045 int _line;
1046 #endif
1047
1048 protected:
1049 LIR_Opr _result;
1050 unsigned short _code;
1051 unsigned short _flags;
1052 CodeEmitInfo* _info;
1053 int _id; // value id for register allocation
1054 int _fpu_pop_count;
1055 Instruction* _source; // for debugging
1056
1057 static void print_condition(outputStream* out, LIR_Condition cond) PRODUCT_RETURN;
1058
1059 protected:
1060 static bool is_in_range(LIR_Code test, LIR_Code start, LIR_Code end) { return start < test && test < end; }
1061
1062 public:
1063 LIR_Op()
1064 :
1065 #ifdef ASSERT
1066 _file(NULL)
1067 , _line(0),
1068 #endif
1069 _result(LIR_OprFact::illegalOpr)
1070 , _code(lir_none)
1071 , _flags(0)
1072 , _info(NULL)
1073 , _id(-1)
1074 , _fpu_pop_count(0)
1075 , _source(NULL) {}
1076
1077 LIR_Op(LIR_Code code, LIR_Opr result, CodeEmitInfo* info)
1078 :
1079 #ifdef ASSERT
1080 _file(NULL)
1081 , _line(0),
1082 #endif
1083 _result(result)
1084 , _code(code)
1085 , _flags(0)
1086 , _info(info)
1087 , _id(-1)
1088 , _fpu_pop_count(0)
1089 , _source(NULL) {}
1090
1091 CodeEmitInfo* info() const { return _info; }
1092 LIR_Code code() const { return (LIR_Code)_code; }
1093 LIR_Opr result_opr() const { return _result; }
1094 void set_result_opr(LIR_Opr opr) { _result = opr; }
1095
1096 #ifdef ASSERT
1097 void set_file_and_line(const char * file, int line) {
1098 _file = file;
1099 _line = line;
1100 }
1101 #endif
1102
1103 virtual const char * name() const PRODUCT_RETURN0;
1104 virtual void visit(LIR_OpVisitState* state);
1105
1106 int id() const { return _id; }
1107 void set_id(int id) { _id = id; }
1108
1109 // FPU stack simulation helpers -- only used on Intel
1110 void set_fpu_pop_count(int count) { assert(count >= 0 && count <= 1, "currently only 0 and 1 are valid"); _fpu_pop_count = count; }
1111 int fpu_pop_count() const { return _fpu_pop_count; }
1112 bool pop_fpu_stack() { return _fpu_pop_count > 0; }
1113
1114 Instruction* source() const { return _source; }
1115 void set_source(Instruction* ins) { _source = ins; }
1116
1117 virtual void emit_code(LIR_Assembler* masm) = 0;
1118 virtual void print_instr(outputStream* out) const = 0;
1119 virtual void print_on(outputStream* st) const PRODUCT_RETURN;
1120
1121 virtual bool is_patching() { return false; }
1122 virtual LIR_OpCall* as_OpCall() { return NULL; }
1123 virtual LIR_OpJavaCall* as_OpJavaCall() { return NULL; }
1124 virtual LIR_OpLabel* as_OpLabel() { return NULL; }
1125 virtual LIR_OpDelay* as_OpDelay() { return NULL; }
1126 virtual LIR_OpLock* as_OpLock() { return NULL; }
1127 virtual LIR_OpAllocArray* as_OpAllocArray() { return NULL; }
1128 virtual LIR_OpAllocObj* as_OpAllocObj() { return NULL; }
1129 virtual LIR_OpRoundFP* as_OpRoundFP() { return NULL; }
1130 virtual LIR_OpBranch* as_OpBranch() { return NULL; }
1131 virtual LIR_OpRTCall* as_OpRTCall() { return NULL; }
1132 virtual LIR_OpConvert* as_OpConvert() { return NULL; }
1133 virtual LIR_Op0* as_Op0() { return NULL; }
1134 virtual LIR_Op1* as_Op1() { return NULL; }
1135 virtual LIR_Op2* as_Op2() { return NULL; }
1136 virtual LIR_Op3* as_Op3() { return NULL; }
1137 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return NULL; }
1138 virtual LIR_OpUpdateCRC32* as_OpUpdateCRC32() { return NULL; }
1139 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return NULL; }
1140 virtual LIR_OpCompareAndSwap* as_OpCompareAndSwap() { return NULL; }
1141 virtual LIR_OpProfileCall* as_OpProfileCall() { return NULL; }
1142 virtual LIR_OpProfileType* as_OpProfileType() { return NULL; }
1143 #ifdef ASSERT
1144 virtual LIR_OpAssert* as_OpAssert() { return NULL; }
1145 #endif
1146
1147 virtual void verify() const {}
1148 };
1149
1150 // for calls
1151 class LIR_OpCall: public LIR_Op {
1152 friend class LIR_OpVisitState;
1153
1154 protected:
1155 address _addr;
1156 LIR_OprList* _arguments;
1157 protected:
1158 LIR_OpCall(LIR_Code code, address addr, LIR_Opr result,
1159 LIR_OprList* arguments, CodeEmitInfo* info = NULL)
1160 : LIR_Op(code, result, info)
1161 , _addr(addr)
1162 , _arguments(arguments) {}
1163
1164 public:
1165 address addr() const { return _addr; }
1166 const LIR_OprList* arguments() const { return _arguments; }
1167 virtual LIR_OpCall* as_OpCall() { return this; }
1168 };
1169
1170
1171 // --------------------------------------------------
1172 // LIR_OpJavaCall
1173 // --------------------------------------------------
1174 class LIR_OpJavaCall: public LIR_OpCall {
1175 friend class LIR_OpVisitState;
1176
1177 private:
1178 ciMethod* _method;
1179 LIR_Opr _receiver;
1180 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.
1181
1182 public:
1183 LIR_OpJavaCall(LIR_Code code, ciMethod* method,
1184 LIR_Opr receiver, LIR_Opr result,
1185 address addr, LIR_OprList* arguments,
1186 CodeEmitInfo* info)
1187 : LIR_OpCall(code, addr, result, arguments, info)
1188 , _method(method)
1189 , _receiver(receiver)
1190 , _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr)
1191 { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); }
1192
1193 LIR_OpJavaCall(LIR_Code code, ciMethod* method,
1194 LIR_Opr receiver, LIR_Opr result, intptr_t vtable_offset,
1195 LIR_OprList* arguments, CodeEmitInfo* info)
1196 : LIR_OpCall(code, (address)vtable_offset, result, arguments, info)
1197 , _method(method)
1198 , _receiver(receiver)
1199 , _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr)
1200 { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); }
1201
1202 LIR_Opr receiver() const { return _receiver; }
1203 ciMethod* method() const { return _method; }
1204
1205 // JSR 292 support.
1206 bool is_invokedynamic() const { return code() == lir_dynamic_call; }
1207 bool is_method_handle_invoke() const {
1208 return method()->is_compiled_lambda_form() || // Java-generated lambda form
1209 method()->is_method_handle_intrinsic(); // JVM-generated MH intrinsic
1210 }
1211
1212 intptr_t vtable_offset() const {
1213 assert(_code == lir_virtual_call, "only have vtable for real vcall");
1214 return (intptr_t) addr();
1215 }
1216
1217 virtual void emit_code(LIR_Assembler* masm);
1218 virtual LIR_OpJavaCall* as_OpJavaCall() { return this; }
1219 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1220 };
1221
1222 // --------------------------------------------------
1223 // LIR_OpLabel
1224 // --------------------------------------------------
1225 // Location where a branch can continue
1226 class LIR_OpLabel: public LIR_Op {
1227 friend class LIR_OpVisitState;
1228
1229 private:
1230 Label* _label;
1231 public:
1232 LIR_OpLabel(Label* lbl)
1233 : LIR_Op(lir_label, LIR_OprFact::illegalOpr, NULL)
1234 , _label(lbl) {}
1235 Label* label() const { return _label; }
1236
1237 virtual void emit_code(LIR_Assembler* masm);
1238 virtual LIR_OpLabel* as_OpLabel() { return this; }
1239 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1240 };
1241
1242 // LIR_OpArrayCopy
1243 class LIR_OpArrayCopy: public LIR_Op {
1244 friend class LIR_OpVisitState;
1245
1246 private:
1247 ArrayCopyStub* _stub;
1248 LIR_Opr _src;
1249 LIR_Opr _src_pos;
1250 LIR_Opr _dst;
1251 LIR_Opr _dst_pos;
1252 LIR_Opr _length;
1253 LIR_Opr _tmp;
1254 ciArrayKlass* _expected_type;
1255 int _flags;
1256
1257 public:
1258 enum Flags {
1259 src_null_check = 1 << 0,
1260 dst_null_check = 1 << 1,
1261 src_pos_positive_check = 1 << 2,
1262 dst_pos_positive_check = 1 << 3,
1263 length_positive_check = 1 << 4,
1264 src_range_check = 1 << 5,
1265 dst_range_check = 1 << 6,
1266 type_check = 1 << 7,
1267 overlapping = 1 << 8,
1268 unaligned = 1 << 9,
1269 src_objarray = 1 << 10,
1270 dst_objarray = 1 << 11,
1271 all_flags = (1 << 12) - 1
1272 };
1273
1274 LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length, LIR_Opr tmp,
1275 ciArrayKlass* expected_type, int flags, CodeEmitInfo* info);
1276
1277 LIR_Opr src() const { return _src; }
1278 LIR_Opr src_pos() const { return _src_pos; }
1279 LIR_Opr dst() const { return _dst; }
1280 LIR_Opr dst_pos() const { return _dst_pos; }
1281 LIR_Opr length() const { return _length; }
1282 LIR_Opr tmp() const { return _tmp; }
1283 int flags() const { return _flags; }
1284 ciArrayKlass* expected_type() const { return _expected_type; }
1285 ArrayCopyStub* stub() const { return _stub; }
1286
1287 virtual void emit_code(LIR_Assembler* masm);
1288 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return this; }
1289 void print_instr(outputStream* out) const PRODUCT_RETURN;
1290 };
1291
1292 // LIR_OpUpdateCRC32
1293 class LIR_OpUpdateCRC32: public LIR_Op {
1294 friend class LIR_OpVisitState;
1295
1296 private:
1297 LIR_Opr _crc;
1298 LIR_Opr _val;
1299
1300 public:
1301
1302 LIR_OpUpdateCRC32(LIR_Opr crc, LIR_Opr val, LIR_Opr res);
1303
1304 LIR_Opr crc() const { return _crc; }
1305 LIR_Opr val() const { return _val; }
1306
1307 virtual void emit_code(LIR_Assembler* masm);
1308 virtual LIR_OpUpdateCRC32* as_OpUpdateCRC32() { return this; }
1309 void print_instr(outputStream* out) const PRODUCT_RETURN;
1310 };
1311
1312 // --------------------------------------------------
1313 // LIR_Op0
1314 // --------------------------------------------------
1315 class LIR_Op0: public LIR_Op {
1316 friend class LIR_OpVisitState;
1317
1318 public:
1319 LIR_Op0(LIR_Code code)
1320 : LIR_Op(code, LIR_OprFact::illegalOpr, NULL) { assert(is_in_range(code, begin_op0, end_op0), "code check"); }
1321 LIR_Op0(LIR_Code code, LIR_Opr result, CodeEmitInfo* info = NULL)
1322 : LIR_Op(code, result, info) { assert(is_in_range(code, begin_op0, end_op0), "code check"); }
1323
1324 virtual void emit_code(LIR_Assembler* masm);
1325 virtual LIR_Op0* as_Op0() { return this; }
1326 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1327 };
1328
1329
1330 // --------------------------------------------------
1331 // LIR_Op1
1332 // --------------------------------------------------
1333
1334 class LIR_Op1: public LIR_Op {
1335 friend class LIR_OpVisitState;
1336
1337 protected:
1338 LIR_Opr _opr; // input operand
1339 BasicType _type; // Operand types
1340 LIR_PatchCode _patch; // only required with patchin (NEEDS_CLEANUP: do we want a special instruction for patching?)
1341
1342 static void print_patch_code(outputStream* out, LIR_PatchCode code);
1343
1344 void set_kind(LIR_MoveKind kind) {
1345 assert(code() == lir_move, "must be");
1346 _flags = kind;
1347 }
1348
1349 public:
1350 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)
1351 : LIR_Op(code, result, info)
1352 , _opr(opr)
1353 , _type(type)
1354 , _patch(patch) { assert(is_in_range(code, begin_op1, end_op1), "code check"); }
1355
1356 LIR_Op1(LIR_Code code, LIR_Opr opr, LIR_Opr result, BasicType type, LIR_PatchCode patch, CodeEmitInfo* info, LIR_MoveKind kind)
1357 : LIR_Op(code, result, info)
1358 , _opr(opr)
1359 , _type(type)
1360 , _patch(patch) {
1361 assert(code == lir_move, "must be");
1362 set_kind(kind);
1363 }
1364
1365 LIR_Op1(LIR_Code code, LIR_Opr opr, CodeEmitInfo* info)
1366 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1367 , _opr(opr)
1368 , _type(T_ILLEGAL)
1369 , _patch(lir_patch_none) { assert(is_in_range(code, begin_op1, end_op1), "code check"); }
1370
1371 LIR_Opr in_opr() const { return _opr; }
1372 LIR_PatchCode patch_code() const { return _patch; }
1373 BasicType type() const { return _type; }
1374
1375 LIR_MoveKind move_kind() const {
1376 assert(code() == lir_move, "must be");
1377 return (LIR_MoveKind)_flags;
1378 }
1379
1380 virtual bool is_patching() { return _patch != lir_patch_none; }
1381 virtual void emit_code(LIR_Assembler* masm);
1382 virtual LIR_Op1* as_Op1() { return this; }
1383 virtual const char * name() const PRODUCT_RETURN0;
1384
1385 void set_in_opr(LIR_Opr opr) { _opr = opr; }
1386
1387 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1388 virtual void verify() const;
1389 };
1390
1391
1392 // for runtime calls
1393 class LIR_OpRTCall: public LIR_OpCall {
1394 friend class LIR_OpVisitState;
1395
1396 private:
1397 LIR_Opr _tmp;
1398 public:
1399 LIR_OpRTCall(address addr, LIR_Opr tmp,
1400 LIR_Opr result, LIR_OprList* arguments, CodeEmitInfo* info = NULL)
1401 : LIR_OpCall(lir_rtcall, addr, result, arguments, info)
1402 , _tmp(tmp) {}
1403
1404 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1405 virtual void emit_code(LIR_Assembler* masm);
1406 virtual LIR_OpRTCall* as_OpRTCall() { return this; }
1407
1408 LIR_Opr tmp() const { return _tmp; }
1409
1410 virtual void verify() const;
1411 };
1412
1413
1414 class LIR_OpBranch: public LIR_Op {
1415 friend class LIR_OpVisitState;
1416
1417 private:
1418 LIR_Condition _cond;
1419 BasicType _type;
1420 Label* _label;
1421 BlockBegin* _block; // if this is a branch to a block, this is the block
1422 BlockBegin* _ublock; // if this is a float-branch, this is the unorderd block
1423 CodeStub* _stub; // if this is a branch to a stub, this is the stub
1424
1425 public:
1426 LIR_OpBranch(LIR_Condition cond, BasicType type, Label* lbl)
1427 : LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*) NULL)
1428 , _cond(cond)
1429 , _type(type)
1430 , _label(lbl)
1431 , _block(NULL)
1432 , _ublock(NULL)
1433 , _stub(NULL) { }
1434
1435 LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block);
1436 LIR_OpBranch(LIR_Condition cond, BasicType type, CodeStub* stub);
1437
1438 // for unordered comparisons
1439 LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* ublock);
1440
1441 LIR_Condition cond() const { return _cond; }
1442 BasicType type() const { return _type; }
1443 Label* label() const { return _label; }
1444 BlockBegin* block() const { return _block; }
1445 BlockBegin* ublock() const { return _ublock; }
1446 CodeStub* stub() const { return _stub; }
1447
1448 void change_block(BlockBegin* b);
1449 void change_ublock(BlockBegin* b);
1450 void negate_cond();
1451
1452 virtual void emit_code(LIR_Assembler* masm);
1453 virtual LIR_OpBranch* as_OpBranch() { return this; }
1454 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1455 };
1456
1457
1458 class ConversionStub;
1459
1460 class LIR_OpConvert: public LIR_Op1 {
1461 friend class LIR_OpVisitState;
1462
1463 private:
1464 Bytecodes::Code _bytecode;
1465 ConversionStub* _stub;
1466
1467 public:
1468 LIR_OpConvert(Bytecodes::Code code, LIR_Opr opr, LIR_Opr result, ConversionStub* stub)
1469 : LIR_Op1(lir_convert, opr, result)
1470 , _bytecode(code)
1471 , _stub(stub) {}
1472
1473 Bytecodes::Code bytecode() const { return _bytecode; }
1474 ConversionStub* stub() const { return _stub; }
1475
1476 virtual void emit_code(LIR_Assembler* masm);
1477 virtual LIR_OpConvert* as_OpConvert() { return this; }
1478 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1479
1480 static void print_bytecode(outputStream* out, Bytecodes::Code code) PRODUCT_RETURN;
1481 };
1482
1483
1484 // LIR_OpAllocObj
1485 class LIR_OpAllocObj : public LIR_Op1 {
1486 friend class LIR_OpVisitState;
1487
1488 private:
1489 LIR_Opr _tmp1;
1490 LIR_Opr _tmp2;
1491 LIR_Opr _tmp3;
1492 LIR_Opr _tmp4;
1493 int _hdr_size;
1494 int _obj_size;
1495 CodeStub* _stub;
1496 bool _init_check;
1497
1498 public:
1499 LIR_OpAllocObj(LIR_Opr klass, LIR_Opr result,
1500 LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1501 int hdr_size, int obj_size, bool init_check, CodeStub* stub)
1502 : LIR_Op1(lir_alloc_object, klass, result)
1503 , _tmp1(t1)
1504 , _tmp2(t2)
1505 , _tmp3(t3)
1506 , _tmp4(t4)
1507 , _hdr_size(hdr_size)
1508 , _obj_size(obj_size)
1509 , _stub(stub)
1510 , _init_check(init_check) { }
1511
1512 LIR_Opr klass() const { return in_opr(); }
1513 LIR_Opr obj() const { return result_opr(); }
1514 LIR_Opr tmp1() const { return _tmp1; }
1515 LIR_Opr tmp2() const { return _tmp2; }
1516 LIR_Opr tmp3() const { return _tmp3; }
1517 LIR_Opr tmp4() const { return _tmp4; }
1518 int header_size() const { return _hdr_size; }
1519 int object_size() const { return _obj_size; }
1520 bool init_check() const { return _init_check; }
1521 CodeStub* stub() const { return _stub; }
1522
1523 virtual void emit_code(LIR_Assembler* masm);
1524 virtual LIR_OpAllocObj * as_OpAllocObj () { return this; }
1525 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1526 };
1527
1528
1529 // LIR_OpRoundFP
1530 class LIR_OpRoundFP : public LIR_Op1 {
1531 friend class LIR_OpVisitState;
1532
1533 private:
1534 LIR_Opr _tmp;
1535
1536 public:
1537 LIR_OpRoundFP(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result)
1538 : LIR_Op1(lir_roundfp, reg, result)
1539 , _tmp(stack_loc_temp) {}
1540
1541 LIR_Opr tmp() const { return _tmp; }
1542 virtual LIR_OpRoundFP* as_OpRoundFP() { return this; }
1543 void print_instr(outputStream* out) const PRODUCT_RETURN;
1544 };
1545
1546 // LIR_OpTypeCheck
1547 class LIR_OpTypeCheck: public LIR_Op {
1548 friend class LIR_OpVisitState;
1549
1550 private:
1551 LIR_Opr _object;
1552 LIR_Opr _array;
1553 ciKlass* _klass;
1554 LIR_Opr _tmp1;
1555 LIR_Opr _tmp2;
1556 LIR_Opr _tmp3;
1557 bool _fast_check;
1558 CodeEmitInfo* _info_for_patch;
1559 CodeEmitInfo* _info_for_exception;
1560 CodeStub* _stub;
1561 ciMethod* _profiled_method;
1562 int _profiled_bci;
1563 bool _should_profile;
1564 bool _need_null_check;
1565
1566 public:
1567 LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
1568 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1569 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub, bool need_null_check = true);
1570 LIR_OpTypeCheck(LIR_Code code, LIR_Opr object, LIR_Opr array,
1571 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception);
1572
1573 LIR_Opr object() const { return _object; }
1574 LIR_Opr array() const { assert(code() == lir_store_check, "not valid"); return _array; }
1575 LIR_Opr tmp1() const { return _tmp1; }
1576 LIR_Opr tmp2() const { return _tmp2; }
1577 LIR_Opr tmp3() const { return _tmp3; }
1578 ciKlass* klass() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _klass; }
1579 bool fast_check() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _fast_check; }
1580 CodeEmitInfo* info_for_patch() const { return _info_for_patch; }
1581 CodeEmitInfo* info_for_exception() const { return _info_for_exception; }
1582 CodeStub* stub() const { return _stub; }
1583
1584 // MethodData* profiling
1585 void set_profiled_method(ciMethod *method) { _profiled_method = method; }
1586 void set_profiled_bci(int bci) { _profiled_bci = bci; }
1587 void set_should_profile(bool b) { _should_profile = b; }
1588 ciMethod* profiled_method() const { return _profiled_method; }
1589 int profiled_bci() const { return _profiled_bci; }
1590 bool should_profile() const { return _should_profile; }
1591 bool need_null_check() const { return _need_null_check; }
1592 virtual bool is_patching() { return _info_for_patch != NULL; }
1593 virtual void emit_code(LIR_Assembler* masm);
1594 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return this; }
1595 void print_instr(outputStream* out) const PRODUCT_RETURN;
1596 };
1597
1598 // LIR_Op2
1599 class LIR_Op2: public LIR_Op {
1600 friend class LIR_OpVisitState;
1601
1602 int _fpu_stack_size; // for sin/cos implementation on Intel
1603
1604 protected:
1605 LIR_Opr _opr1;
1606 LIR_Opr _opr2;
1607 BasicType _type;
1608 LIR_Opr _tmp1;
1609 LIR_Opr _tmp2;
1610 LIR_Opr _tmp3;
1611 LIR_Opr _tmp4;
1612 LIR_Opr _tmp5;
1613 LIR_Condition _condition;
1614
1615 void verify() const;
1616
1617 public:
1618 LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, CodeEmitInfo* info = NULL)
1619 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1620 , _fpu_stack_size(0)
1621 , _opr1(opr1)
1622 , _opr2(opr2)
1623 , _type(T_ILLEGAL)
1624 , _tmp1(LIR_OprFact::illegalOpr)
1625 , _tmp2(LIR_OprFact::illegalOpr)
1626 , _tmp3(LIR_OprFact::illegalOpr)
1627 , _tmp4(LIR_OprFact::illegalOpr)
1628 , _tmp5(LIR_OprFact::illegalOpr)
1629 , _condition(condition) {
1630 assert(code == lir_cmp || code == lir_assert, "code check");
1631 }
1632
1633 LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, BasicType type)
1634 : LIR_Op(code, result, NULL)
1635 , _fpu_stack_size(0)
1636 , _opr1(opr1)
1637 , _opr2(opr2)
1638 , _type(type)
1639 , _tmp1(LIR_OprFact::illegalOpr)
1640 , _tmp2(LIR_OprFact::illegalOpr)
1641 , _tmp3(LIR_OprFact::illegalOpr)
1642 , _tmp4(LIR_OprFact::illegalOpr)
1643 , _tmp5(LIR_OprFact::illegalOpr)
1644 , _condition(condition) {
1645 assert(code == lir_cmove, "code check");
1646 assert(type != T_ILLEGAL, "cmove should have type");
1647 }
1648
1649 LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result = LIR_OprFact::illegalOpr,
1650 CodeEmitInfo* info = NULL, BasicType type = T_ILLEGAL)
1651 : LIR_Op(code, result, info)
1652 , _fpu_stack_size(0)
1653 , _opr1(opr1)
1654 , _opr2(opr2)
1655 , _type(type)
1656 , _tmp1(LIR_OprFact::illegalOpr)
1657 , _tmp2(LIR_OprFact::illegalOpr)
1658 , _tmp3(LIR_OprFact::illegalOpr)
1659 , _tmp4(LIR_OprFact::illegalOpr)
1660 , _tmp5(LIR_OprFact::illegalOpr)
1661 , _condition(lir_cond_unknown) {
1662 assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check");
1663 }
1664
1665 LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, LIR_Opr tmp1, LIR_Opr tmp2 = LIR_OprFact::illegalOpr,
1666 LIR_Opr tmp3 = LIR_OprFact::illegalOpr, LIR_Opr tmp4 = LIR_OprFact::illegalOpr, LIR_Opr tmp5 = LIR_OprFact::illegalOpr)
1667 : LIR_Op(code, result, NULL)
1668 , _fpu_stack_size(0)
1669 , _opr1(opr1)
1670 , _opr2(opr2)
1671 , _type(T_ILLEGAL)
1672 , _tmp1(tmp1)
1673 , _tmp2(tmp2)
1674 , _tmp3(tmp3)
1675 , _tmp4(tmp4)
1676 , _tmp5(tmp5)
1677 , _condition(lir_cond_unknown) {
1678 assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check");
1679 }
1680
1681 LIR_Opr in_opr1() const { return _opr1; }
1682 LIR_Opr in_opr2() const { return _opr2; }
1683 BasicType type() const { return _type; }
1684 LIR_Opr tmp1_opr() const { return _tmp1; }
1685 LIR_Opr tmp2_opr() const { return _tmp2; }
1686 LIR_Opr tmp3_opr() const { return _tmp3; }
1687 LIR_Opr tmp4_opr() const { return _tmp4; }
1688 LIR_Opr tmp5_opr() const { return _tmp5; }
1689 LIR_Condition condition() const {
1690 assert(code() == lir_cmp || code() == lir_cmove || code() == lir_assert, "only valid for cmp and cmove and assert"); return _condition;
1691 }
1692 void set_condition(LIR_Condition condition) {
1693 assert(code() == lir_cmp || code() == lir_cmove, "only valid for cmp and cmove"); _condition = condition;
1694 }
1695
1696 void set_fpu_stack_size(int size) { _fpu_stack_size = size; }
1697 int fpu_stack_size() const { return _fpu_stack_size; }
1698
1699 void set_in_opr1(LIR_Opr opr) { _opr1 = opr; }
1700 void set_in_opr2(LIR_Opr opr) { _opr2 = opr; }
1701
1702 virtual void emit_code(LIR_Assembler* masm);
1703 virtual LIR_Op2* as_Op2() { return this; }
1704 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1705 };
1706
1707 class LIR_OpAllocArray : public LIR_Op {
1708 friend class LIR_OpVisitState;
1709
1710 private:
1711 LIR_Opr _klass;
1712 LIR_Opr _len;
1713 LIR_Opr _tmp1;
1714 LIR_Opr _tmp2;
1715 LIR_Opr _tmp3;
1716 LIR_Opr _tmp4;
1717 BasicType _type;
1718 CodeStub* _stub;
1719
1720 public:
1721 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)
1722 : LIR_Op(lir_alloc_array, result, NULL)
1723 , _klass(klass)
1724 , _len(len)
1725 , _tmp1(t1)
1726 , _tmp2(t2)
1727 , _tmp3(t3)
1728 , _tmp4(t4)
1729 , _type(type)
1730 , _stub(stub) {}
1731
1732 LIR_Opr klass() const { return _klass; }
1733 LIR_Opr len() const { return _len; }
1734 LIR_Opr obj() const { return result_opr(); }
1735 LIR_Opr tmp1() const { return _tmp1; }
1736 LIR_Opr tmp2() const { return _tmp2; }
1737 LIR_Opr tmp3() const { return _tmp3; }
1738 LIR_Opr tmp4() const { return _tmp4; }
1739 BasicType type() const { return _type; }
1740 CodeStub* stub() const { return _stub; }
1741
1742 virtual void emit_code(LIR_Assembler* masm);
1743 virtual LIR_OpAllocArray * as_OpAllocArray () { return this; }
1744 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1745 };
1746
1747
1748 class LIR_Op3: public LIR_Op {
1749 friend class LIR_OpVisitState;
1750
1751 private:
1752 LIR_Opr _opr1;
1753 LIR_Opr _opr2;
1754 LIR_Opr _opr3;
1755 public:
1756 LIR_Op3(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr opr3, LIR_Opr result, CodeEmitInfo* info = NULL)
1757 : LIR_Op(code, result, info)
1758 , _opr1(opr1)
1759 , _opr2(opr2)
1760 , _opr3(opr3) { assert(is_in_range(code, begin_op3, end_op3), "code check"); }
1761 LIR_Opr in_opr1() const { return _opr1; }
1762 LIR_Opr in_opr2() const { return _opr2; }
1763 LIR_Opr in_opr3() const { return _opr3; }
1764
1765 virtual void emit_code(LIR_Assembler* masm);
1766 virtual LIR_Op3* as_Op3() { return this; }
1767 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1768 };
1769
1770
1771 //--------------------------------
1772 class LabelObj: public CompilationResourceObj {
1773 private:
1774 Label _label;
1775 public:
1776 LabelObj() {}
1777 Label* label() { return &_label; }
1778 };
1779
1780
1781 class LIR_OpLock: public LIR_Op {
1782 friend class LIR_OpVisitState;
1783
1784 private:
1785 LIR_Opr _hdr;
1786 LIR_Opr _obj;
1787 LIR_Opr _lock;
1788 LIR_Opr _scratch;
1789 CodeStub* _stub;
1790 CodeStub* _throw_imse_stub;
1791 public:
1792 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)
1793 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1794 , _hdr(hdr)
1795 , _obj(obj)
1796 , _lock(lock)
1797 , _scratch(scratch)
1798 , _stub(stub)
1799 , _throw_imse_stub(throw_imse_stub) {}
1800
1801 LIR_Opr hdr_opr() const { return _hdr; }
1802 LIR_Opr obj_opr() const { return _obj; }
1803 LIR_Opr lock_opr() const { return _lock; }
1804 LIR_Opr scratch_opr() const { return _scratch; }
1805 CodeStub* stub() const { return _stub; }
1806 CodeStub* throw_imse_stub() const { return _throw_imse_stub; }
1807
1808 virtual void emit_code(LIR_Assembler* masm);
1809 virtual LIR_OpLock* as_OpLock() { return this; }
1810 void print_instr(outputStream* out) const PRODUCT_RETURN;
1811 };
1812
1813
1814 class LIR_OpDelay: public LIR_Op {
1815 friend class LIR_OpVisitState;
1816
1817 private:
1818 LIR_Op* _op;
1819
1820 public:
1821 LIR_OpDelay(LIR_Op* op, CodeEmitInfo* info):
1822 LIR_Op(lir_delay_slot, LIR_OprFact::illegalOpr, info),
1823 _op(op) {
1824 assert(op->code() == lir_nop || LIRFillDelaySlots, "should be filling with nops");
1825 }
1826 virtual void emit_code(LIR_Assembler* masm);
1827 virtual LIR_OpDelay* as_OpDelay() { return this; }
1828 void print_instr(outputStream* out) const PRODUCT_RETURN;
1829 LIR_Op* delay_op() const { return _op; }
1830 CodeEmitInfo* call_info() const { return info(); }
1831 };
1832
1833 #ifdef ASSERT
1834 // LIR_OpAssert
1835 class LIR_OpAssert : public LIR_Op2 {
1836 friend class LIR_OpVisitState;
1837
1838 private:
1839 const char* _msg;
1840 bool _halt;
1841
1842 public:
1843 LIR_OpAssert(LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, const char* msg, bool halt)
1844 : LIR_Op2(lir_assert, condition, opr1, opr2)
1845 , _msg(msg)
1846 , _halt(halt) {
1847 }
1848
1849 const char* msg() const { return _msg; }
1850 bool halt() const { return _halt; }
1851
1852 virtual void emit_code(LIR_Assembler* masm);
1853 virtual LIR_OpAssert* as_OpAssert() { return this; }
1854 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1855 };
1856 #endif
1857
1858 // LIR_OpCompareAndSwap
1859 class LIR_OpCompareAndSwap : public LIR_Op {
1860 friend class LIR_OpVisitState;
1861
1862 private:
1863 LIR_Opr _addr;
1864 LIR_Opr _cmp_value;
1865 LIR_Opr _new_value;
1866 LIR_Opr _tmp1;
1867 LIR_Opr _tmp2;
1868
1869 public:
1870 LIR_OpCompareAndSwap(LIR_Code code, LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1871 LIR_Opr t1, LIR_Opr t2, LIR_Opr result)
1872 : LIR_Op(code, result, NULL) // no result, no info
1873 , _addr(addr)
1874 , _cmp_value(cmp_value)
1875 , _new_value(new_value)
1876 , _tmp1(t1)
1877 , _tmp2(t2) { }
1878
1879 LIR_Opr addr() const { return _addr; }
1880 LIR_Opr cmp_value() const { return _cmp_value; }
1881 LIR_Opr new_value() const { return _new_value; }
1882 LIR_Opr tmp1() const { return _tmp1; }
1883 LIR_Opr tmp2() const { return _tmp2; }
1884
1885 virtual void emit_code(LIR_Assembler* masm);
1886 virtual LIR_OpCompareAndSwap * as_OpCompareAndSwap () { return this; }
1887 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1888 };
1889
1890 // LIR_OpProfileCall
1891 class LIR_OpProfileCall : public LIR_Op {
1892 friend class LIR_OpVisitState;
1893
1894 private:
1895 ciMethod* _profiled_method;
1896 int _profiled_bci;
1897 ciMethod* _profiled_callee;
1898 LIR_Opr _mdo;
1899 LIR_Opr _recv;
1900 LIR_Opr _tmp1;
1901 ciKlass* _known_holder;
1902
1903 public:
1904 // Destroys recv
1905 LIR_OpProfileCall(ciMethod* profiled_method, int profiled_bci, ciMethod* profiled_callee, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* known_holder)
1906 : LIR_Op(lir_profile_call, LIR_OprFact::illegalOpr, NULL) // no result, no info
1907 , _profiled_method(profiled_method)
1908 , _profiled_bci(profiled_bci)
1909 , _profiled_callee(profiled_callee)
1910 , _mdo(mdo)
1911 , _recv(recv)
1912 , _tmp1(t1)
1913 , _known_holder(known_holder) { }
1914
1915 ciMethod* profiled_method() const { return _profiled_method; }
1916 int profiled_bci() const { return _profiled_bci; }
1917 ciMethod* profiled_callee() const { return _profiled_callee; }
1918 LIR_Opr mdo() const { return _mdo; }
1919 LIR_Opr recv() const { return _recv; }
1920 LIR_Opr tmp1() const { return _tmp1; }
1921 ciKlass* known_holder() const { return _known_holder; }
1922
1923 virtual void emit_code(LIR_Assembler* masm);
1924 virtual LIR_OpProfileCall* as_OpProfileCall() { return this; }
1925 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1926 bool should_profile_receiver_type() const {
1927 bool callee_is_static = _profiled_callee->is_loaded() && _profiled_callee->is_static();
1928 Bytecodes::Code bc = _profiled_method->java_code_at_bci(_profiled_bci);
1929 bool call_is_virtual = (bc == Bytecodes::_invokevirtual && !_profiled_callee->can_be_statically_bound()) || bc == Bytecodes::_invokeinterface;
1930 return C1ProfileVirtualCalls && call_is_virtual && !callee_is_static;
1931 }
1932 };
1933
1934 // LIR_OpProfileType
1935 class LIR_OpProfileType : public LIR_Op {
1936 friend class LIR_OpVisitState;
1937
1938 private:
1939 LIR_Opr _mdp;
1940 LIR_Opr _obj;
1941 LIR_Opr _tmp;
1942 ciKlass* _exact_klass; // non NULL if we know the klass statically (no need to load it from _obj)
1943 intptr_t _current_klass; // what the profiling currently reports
1944 bool _not_null; // true if we know statically that _obj cannot be null
1945 bool _no_conflict; // true if we're profling parameters, _exact_klass is not NULL and we know
1946 // _exact_klass it the only possible type for this parameter in any context.
1947
1948 public:
1949 // Destroys recv
1950 LIR_OpProfileType(LIR_Opr mdp, LIR_Opr obj, ciKlass* exact_klass, intptr_t current_klass, LIR_Opr tmp, bool not_null, bool no_conflict)
1951 : LIR_Op(lir_profile_type, LIR_OprFact::illegalOpr, NULL) // no result, no info
1952 , _mdp(mdp)
1953 , _obj(obj)
1954 , _tmp(tmp)
1955 , _exact_klass(exact_klass)
1956 , _current_klass(current_klass)
1957 , _not_null(not_null)
1958 , _no_conflict(no_conflict) { }
1959
1960 LIR_Opr mdp() const { return _mdp; }
1961 LIR_Opr obj() const { return _obj; }
1962 LIR_Opr tmp() const { return _tmp; }
1963 ciKlass* exact_klass() const { return _exact_klass; }
1964 intptr_t current_klass() const { return _current_klass; }
1965 bool not_null() const { return _not_null; }
1966 bool no_conflict() const { return _no_conflict; }
1967
1968 virtual void emit_code(LIR_Assembler* masm);
1969 virtual LIR_OpProfileType* as_OpProfileType() { return this; }
1970 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1971 };
1972
1973 class LIR_InsertionBuffer;
1974
1975 //--------------------------------LIR_List---------------------------------------------------
1976 // Maintains a list of LIR instructions (one instance of LIR_List per basic block)
1977 // The LIR instructions are appended by the LIR_List class itself;
1978 //
1979 // Notes:
1980 // - all offsets are(should be) in bytes
1981 // - local positions are specified with an offset, with offset 0 being local 0
1982
1983 class LIR_List: public CompilationResourceObj {
1984 private:
1985 LIR_OpList _operations;
1986
1987 Compilation* _compilation;
1988 #ifndef PRODUCT
1989 BlockBegin* _block;
1990 #endif
1991 #ifdef ASSERT
1992 const char * _file;
1993 int _line;
1994 #endif
1995
1996 public:
1997 void append(LIR_Op* op) {
1998 if (op->source() == NULL)
1999 op->set_source(_compilation->current_instruction());
2000 #ifndef PRODUCT
2001 if (PrintIRWithLIR) {
2002 _compilation->maybe_print_current_instruction();
2003 op->print(); tty->cr();
2004 }
2005 #endif // PRODUCT
2006
2007 _operations.append(op);
2008
2009 #ifdef ASSERT
2010 op->verify();
2011 op->set_file_and_line(_file, _line);
2012 _file = NULL;
2013 _line = 0;
2014 #endif
2015 }
2016
2017 LIR_List(Compilation* compilation, BlockBegin* block = NULL);
2018
2019 #ifdef ASSERT
2020 void set_file_and_line(const char * file, int line);
2021 #endif
2022
2023 //---------- accessors ---------------
2024 LIR_OpList* instructions_list() { return &_operations; }
2025 int length() const { return _operations.length(); }
2026 LIR_Op* at(int i) const { return _operations.at(i); }
2027
2028 NOT_PRODUCT(BlockBegin* block() const { return _block; });
2029
2030 // insert LIR_Ops in buffer to right places in LIR_List
2031 void append(LIR_InsertionBuffer* buffer);
2032
2033 //---------- mutators ---------------
2034 void insert_before(int i, LIR_List* op_list) { _operations.insert_before(i, op_list->instructions_list()); }
2035 void insert_before(int i, LIR_Op* op) { _operations.insert_before(i, op); }
2036 void remove_at(int i) { _operations.remove_at(i); }
2037
2038 //---------- printing -------------
2039 void print_instructions() PRODUCT_RETURN;
2040
2041
2042 //---------- instructions -------------
2043 void call_opt_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2044 address dest, LIR_OprList* arguments,
2045 CodeEmitInfo* info) {
2046 append(new LIR_OpJavaCall(lir_optvirtual_call, method, receiver, result, dest, arguments, info));
2047 }
2048 void call_static(ciMethod* method, LIR_Opr result,
2049 address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
2050 append(new LIR_OpJavaCall(lir_static_call, method, LIR_OprFact::illegalOpr, result, dest, arguments, info));
2051 }
2052 void call_icvirtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2053 address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
2054 append(new LIR_OpJavaCall(lir_icvirtual_call, method, receiver, result, dest, arguments, info));
2055 }
2056 void call_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2057 intptr_t vtable_offset, LIR_OprList* arguments, CodeEmitInfo* info) {
2058 append(new LIR_OpJavaCall(lir_virtual_call, method, receiver, result, vtable_offset, arguments, info));
2059 }
2060 void call_dynamic(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2061 address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
2062 append(new LIR_OpJavaCall(lir_dynamic_call, method, receiver, result, dest, arguments, info));
2063 }
2064
2065 void get_thread(LIR_Opr result) { append(new LIR_Op0(lir_get_thread, result)); }
2066 void word_align() { append(new LIR_Op0(lir_word_align)); }
2067 void membar() { append(new LIR_Op0(lir_membar)); }
2068 void membar_acquire() { append(new LIR_Op0(lir_membar_acquire)); }
2069 void membar_release() { append(new LIR_Op0(lir_membar_release)); }
2070 void membar_loadload() { append(new LIR_Op0(lir_membar_loadload)); }
2071 void membar_storestore() { append(new LIR_Op0(lir_membar_storestore)); }
2072 void membar_loadstore() { append(new LIR_Op0(lir_membar_loadstore)); }
2073 void membar_storeload() { append(new LIR_Op0(lir_membar_storeload)); }
2074
2075 void nop() { append(new LIR_Op0(lir_nop)); }
2076 void build_frame() { append(new LIR_Op0(lir_build_frame)); }
2077
2078 void std_entry(LIR_Opr receiver) { append(new LIR_Op0(lir_std_entry, receiver)); }
2079 void osr_entry(LIR_Opr osrPointer) { append(new LIR_Op0(lir_osr_entry, osrPointer)); }
2080
2081 void on_spin_wait() { append(new LIR_Op0(lir_on_spin_wait)); }
2082
2083 void branch_destination(Label* lbl) { append(new LIR_OpLabel(lbl)); }
2084
2085 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)); }
2086
2087 // result is a stack location for old backend and vreg for UseLinearScan
2088 // stack_loc_temp is an illegal register for old backend
2089 void roundfp(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result) { append(new LIR_OpRoundFP(reg, stack_loc_temp, result)); }
2090 void unaligned_move(LIR_Address* src, LIR_Opr dst) { append(new LIR_Op1(lir_move, LIR_OprFact::address(src), dst, dst->type(), lir_patch_none, NULL, lir_move_unaligned)); }
2091 void unaligned_move(LIR_Opr src, LIR_Address* dst) { append(new LIR_Op1(lir_move, src, LIR_OprFact::address(dst), src->type(), lir_patch_none, NULL, lir_move_unaligned)); }
2092 void unaligned_move(LIR_Opr src, LIR_Opr dst) { append(new LIR_Op1(lir_move, src, dst, dst->type(), lir_patch_none, NULL, lir_move_unaligned)); }
2093 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)); }
2094 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)); }
2095 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)); }
2096 void move_wide(LIR_Address* src, LIR_Opr dst, CodeEmitInfo* info = NULL) {
2097 if (UseCompressedOops) {
2098 append(new LIR_Op1(lir_move, LIR_OprFact::address(src), dst, src->type(), lir_patch_none, info, lir_move_wide));
2099 } else {
2100 move(src, dst, info);
2101 }
2102 }
2103 void move_wide(LIR_Opr src, LIR_Address* dst, CodeEmitInfo* info = NULL) {
2104 if (UseCompressedOops) {
2105 append(new LIR_Op1(lir_move, src, LIR_OprFact::address(dst), dst->type(), lir_patch_none, info, lir_move_wide));
2106 } else {
2107 move(src, dst, info);
2108 }
2109 }
2110 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)); }
2111
2112 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)); }
2113 void oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info);
2114
2115 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)); }
2116 void klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info);
2117
2118 void return_op(LIR_Opr result) { append(new LIR_Op1(lir_return, result)); }
2119
2120 void safepoint(LIR_Opr tmp, CodeEmitInfo* info) { append(new LIR_Op1(lir_safepoint, tmp, info)); }
2121
2122 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)); }
2123
2124 void logical_and (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_and, left, right, dst)); }
2125 void logical_or (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_or, left, right, dst)); }
2126 void logical_xor (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_xor, left, right, dst)); }
2127
2128 void pack64(LIR_Opr src, LIR_Opr dst) { append(new LIR_Op1(lir_pack64, src, dst, T_LONG, lir_patch_none, NULL)); }
2129 void unpack64(LIR_Opr src, LIR_Opr dst) { append(new LIR_Op1(lir_unpack64, src, dst, T_LONG, lir_patch_none, NULL)); }
2130
2131 void null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null = false);
2132 void throw_exception(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) {
2133 append(new LIR_Op2(lir_throw, exceptionPC, exceptionOop, LIR_OprFact::illegalOpr, info));
2134 }
2135 void unwind_exception(LIR_Opr exceptionOop) {
2136 append(new LIR_Op1(lir_unwind, exceptionOop));
2137 }
2138
2139 void push(LIR_Opr opr) { append(new LIR_Op1(lir_push, opr)); }
2140 void pop(LIR_Opr reg) { append(new LIR_Op1(lir_pop, reg)); }
2141
2142 void cmp(LIR_Condition condition, LIR_Opr left, LIR_Opr right, CodeEmitInfo* info = NULL) {
2143 append(new LIR_Op2(lir_cmp, condition, left, right, info));
2144 }
2145 void cmp(LIR_Condition condition, LIR_Opr left, int right, CodeEmitInfo* info = NULL) {
2146 cmp(condition, left, LIR_OprFact::intConst(right), info);
2147 }
2148
2149 void cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info);
2150 void cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info);
2151
2152 void cmove(LIR_Condition condition, LIR_Opr src1, LIR_Opr src2, LIR_Opr dst, BasicType type) {
2153 append(new LIR_Op2(lir_cmove, condition, src1, src2, dst, type));
2154 }
2155
2156 void cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
2157 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr);
2158 void cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
2159 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr);
2160 void cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
2161 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr);
2162
2163 void abs (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_abs , from, tmp, to)); }
2164 void negate(LIR_Opr from, LIR_Opr to, LIR_Opr tmp = LIR_OprFact::illegalOpr) { append(new LIR_Op2(lir_neg, from, tmp, to)); }
2165 void sqrt(LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_sqrt, from, tmp, to)); }
2166 void fmad(LIR_Opr from, LIR_Opr from1, LIR_Opr from2, LIR_Opr to) { append(new LIR_Op3(lir_fmad, from, from1, from2, to)); }
2167 void fmaf(LIR_Opr from, LIR_Opr from1, LIR_Opr from2, LIR_Opr to) { append(new LIR_Op3(lir_fmaf, from, from1, from2, to)); }
2168 void log10 (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_log10, from, LIR_OprFact::illegalOpr, to, tmp)); }
2169 void tan (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_Op2(lir_tan , from, tmp1, to, tmp2)); }
2170
2171 void add (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_add, left, right, res)); }
2172 void sub (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_sub, left, right, res, info)); }
2173 void mul (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_mul, left, right, res)); }
2174 void mul_strictfp (LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_mul_strictfp, left, right, res, tmp)); }
2175 void div (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_div, left, right, res, info)); }
2176 void div_strictfp (LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_div_strictfp, left, right, res, tmp)); }
2177 void rem (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_rem, left, right, res, info)); }
2178
2179 void volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2180 void volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code);
2181
2182 void load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none);
2183
2184 void store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2185 void store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2186 void store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none);
2187 void volatile_store_mem_reg(LIR_Opr src, LIR_Address* address, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2188 void volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code);
2189
2190 void idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2191 void idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2192 void irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2193 void irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2194
2195 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);
2196 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);
2197
2198 // jump is an unconditional branch
2199 void jump(BlockBegin* block) {
2200 append(new LIR_OpBranch(lir_cond_always, T_ILLEGAL, block));
2201 }
2202 void jump(CodeStub* stub) {
2203 append(new LIR_OpBranch(lir_cond_always, T_ILLEGAL, stub));
2204 }
2205 void branch(LIR_Condition cond, BasicType type, Label* lbl) { append(new LIR_OpBranch(cond, type, lbl)); }
2206 void branch(LIR_Condition cond, BasicType type, BlockBegin* block) {
2207 assert(type != T_FLOAT && type != T_DOUBLE, "no fp comparisons");
2208 append(new LIR_OpBranch(cond, type, block));
2209 }
2210 void branch(LIR_Condition cond, BasicType type, CodeStub* stub) {
2211 assert(type != T_FLOAT && type != T_DOUBLE, "no fp comparisons");
2212 append(new LIR_OpBranch(cond, type, stub));
2213 }
2214 void branch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* unordered) {
2215 assert(type == T_FLOAT || type == T_DOUBLE, "fp comparisons only");
2216 append(new LIR_OpBranch(cond, type, block, unordered));
2217 }
2218
2219 void shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
2220 void shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
2221 void unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
2222
2223 void shift_left(LIR_Opr value, int count, LIR_Opr dst) { shift_left(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2224 void shift_right(LIR_Opr value, int count, LIR_Opr dst) { shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2225 void unsigned_shift_right(LIR_Opr value, int count, LIR_Opr dst) { unsigned_shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2226
2227 void lcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_cmp_l2i, left, right, dst)); }
2228 void fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less);
2229
2230 void call_runtime_leaf(address routine, LIR_Opr tmp, LIR_Opr result, LIR_OprList* arguments) {
2231 append(new LIR_OpRTCall(routine, tmp, result, arguments));
2232 }
2233
2234 void call_runtime(address routine, LIR_Opr tmp, LIR_Opr result,
2235 LIR_OprList* arguments, CodeEmitInfo* info) {
2236 append(new LIR_OpRTCall(routine, tmp, result, arguments, info));
2237 }
2238
2239 void load_stack_address_monitor(int monitor_ix, LIR_Opr dst) { append(new LIR_Op1(lir_monaddr, LIR_OprFact::intConst(monitor_ix), dst)); }
2240 void unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub);
2241 void lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info, CodeStub* throw_imse_stub=NULL);
2242
2243 void set_24bit_fpu() { append(new LIR_Op0(lir_24bit_FPU )); }
2244 void restore_fpu() { append(new LIR_Op0(lir_reset_FPU )); }
2245 void breakpoint() { append(new LIR_Op0(lir_breakpoint)); }
2246
2247 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)); }
2248
2249 void update_crc32(LIR_Opr crc, LIR_Opr val, LIR_Opr res) { append(new LIR_OpUpdateCRC32(crc, val, res)); }
2250
2251 void fpop_raw() { append(new LIR_Op0(lir_fpop_raw)); }
2252
2253 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);
2254 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);
2255
2256 void checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
2257 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
2258 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
2259 ciMethod* profiled_method, int profiled_bci, bool is_never_null);
2260 // MethodData* profiling
2261 void profile_call(ciMethod* method, int bci, ciMethod* callee, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* cha_klass) {
2262 append(new LIR_OpProfileCall(method, bci, callee, mdo, recv, t1, cha_klass));
2263 }
2264 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) {
2265 append(new LIR_OpProfileType(LIR_OprFact::address(mdp), obj, exact_klass, current_klass, tmp, not_null, no_conflict));
2266 }
2267
2268 void xadd(LIR_Opr src, LIR_Opr add, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_xadd, src, add, res, tmp)); }
2269 void xchg(LIR_Opr src, LIR_Opr set, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_xchg, src, set, res, tmp)); }
2270 #ifdef ASSERT
2271 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)); }
2272 #endif
2273 };
2274
2275 void print_LIR(BlockList* blocks);
2276
2277 class LIR_InsertionBuffer : public CompilationResourceObj {
2278 private:
2279 LIR_List* _lir; // the lir list where ops of this buffer should be inserted later (NULL when uninitialized)
2280
2281 // list of insertion points. index and count are stored alternately:
2282 // _index_and_count[i * 2]: the index into lir list where "count" ops should be inserted
2283 // _index_and_count[i * 2 + 1]: the number of ops to be inserted at index
2284 intStack _index_and_count;
2285
2286 // the LIR_Ops to be inserted
2287 LIR_OpList _ops;
2288
2289 void append_new(int index, int count) { _index_and_count.append(index); _index_and_count.append(count); }
2290 void set_index_at(int i, int value) { _index_and_count.at_put((i << 1), value); }
2291 void set_count_at(int i, int value) { _index_and_count.at_put((i << 1) + 1, value); }
2292
2293 #ifdef ASSERT
2294 void verify();
2295 #endif
2296 public:
2297 LIR_InsertionBuffer() : _lir(NULL), _index_and_count(8), _ops(8) { }
2298
2299 // must be called before using the insertion buffer
2300 void init(LIR_List* lir) { assert(!initialized(), "already initialized"); _lir = lir; _index_and_count.clear(); _ops.clear(); }
2301 bool initialized() const { return _lir != NULL; }
2302 // called automatically when the buffer is appended to the LIR_List
2303 void finish() { _lir = NULL; }
2304
2305 // accessors
2306 LIR_List* lir_list() const { return _lir; }
2307 int number_of_insertion_points() const { return _index_and_count.length() >> 1; }
2308 int index_at(int i) const { return _index_and_count.at((i << 1)); }
2309 int count_at(int i) const { return _index_and_count.at((i << 1) + 1); }
2310
2311 int number_of_ops() const { return _ops.length(); }
2312 LIR_Op* op_at(int i) const { return _ops.at(i); }
2313
2314 // append an instruction to the buffer
2315 void append(int index, LIR_Op* op);
2316
2317 // instruction
2318 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)); }
2319 };
2320
2321
2322 //
2323 // LIR_OpVisitState is used for manipulating LIR_Ops in an abstract way.
2324 // Calling a LIR_Op's visit function with a LIR_OpVisitState causes
2325 // information about the input, output and temporaries used by the
2326 // op to be recorded. It also records whether the op has call semantics
2327 // and also records all the CodeEmitInfos used by this op.
2328 //
2329
2330
2331 class LIR_OpVisitState: public StackObj {
2332 public:
2333 typedef enum { inputMode, firstMode = inputMode, tempMode, outputMode, numModes, invalidMode = -1 } OprMode;
2334
2335 enum {
2336 maxNumberOfOperands = 20,
2337 maxNumberOfInfos = 4
2338 };
2339
2340 private:
2341 LIR_Op* _op;
2342
2343 // optimization: the operands and infos are not stored in a variable-length
2344 // list, but in a fixed-size array to save time of size checks and resizing
2345 int _oprs_len[numModes];
2346 LIR_Opr* _oprs_new[numModes][maxNumberOfOperands];
2347 int _info_len;
2348 CodeEmitInfo* _info_new[maxNumberOfInfos];
2349
2350 bool _has_call;
2351 bool _has_slow_case;
2352
2353
2354 // only include register operands
2355 // addresses are decomposed to the base and index registers
2356 // constants and stack operands are ignored
2357 void append(LIR_Opr& opr, OprMode mode) {
2358 assert(opr->is_valid(), "should not call this otherwise");
2359 assert(mode >= 0 && mode < numModes, "bad mode");
2360
2361 if (opr->is_register()) {
2362 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
2363 _oprs_new[mode][_oprs_len[mode]++] = &opr;
2364
2365 } else if (opr->is_pointer()) {
2366 LIR_Address* address = opr->as_address_ptr();
2367 if (address != NULL) {
2368 // special handling for addresses: add base and index register of the address
2369 // both are always input operands or temp if we want to extend
2370 // their liveness!
2371 if (mode == outputMode) {
2372 mode = inputMode;
2373 }
2374 assert (mode == inputMode || mode == tempMode, "input or temp only for addresses");
2375 if (address->_base->is_valid()) {
2376 assert(address->_base->is_register(), "must be");
2377 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
2378 _oprs_new[mode][_oprs_len[mode]++] = &address->_base;
2379 }
2380 if (address->_index->is_valid()) {
2381 assert(address->_index->is_register(), "must be");
2382 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
2383 _oprs_new[mode][_oprs_len[mode]++] = &address->_index;
2384 }
2385
2386 } else {
2387 assert(opr->is_constant(), "constant operands are not processed");
2388 }
2389 } else {
2390 assert(opr->is_stack(), "stack operands are not processed");
2391 }
2392 }
2393
2394 void append(CodeEmitInfo* info) {
2395 assert(info != NULL, "should not call this otherwise");
2396 assert(_info_len < maxNumberOfInfos, "array overflow");
2397 _info_new[_info_len++] = info;
2398 }
2399
2400 public:
2401 LIR_OpVisitState() { reset(); }
2402
2403 LIR_Op* op() const { return _op; }
2404 void set_op(LIR_Op* op) { reset(); _op = op; }
2405
2406 bool has_call() const { return _has_call; }
2407 bool has_slow_case() const { return _has_slow_case; }
2408
2409 void reset() {
2410 _op = NULL;
2411 _has_call = false;
2412 _has_slow_case = false;
2413
2414 _oprs_len[inputMode] = 0;
2415 _oprs_len[tempMode] = 0;
2416 _oprs_len[outputMode] = 0;
2417 _info_len = 0;
2418 }
2419
2420
2421 int opr_count(OprMode mode) const {
2422 assert(mode >= 0 && mode < numModes, "bad mode");
2423 return _oprs_len[mode];
2424 }
2425
2426 LIR_Opr opr_at(OprMode mode, int index) const {
2427 assert(mode >= 0 && mode < numModes, "bad mode");
2428 assert(index >= 0 && index < _oprs_len[mode], "index out of bound");
2429 return *_oprs_new[mode][index];
2430 }
2431
2432 void set_opr_at(OprMode mode, int index, LIR_Opr opr) const {
2433 assert(mode >= 0 && mode < numModes, "bad mode");
2434 assert(index >= 0 && index < _oprs_len[mode], "index out of bound");
2435 *_oprs_new[mode][index] = opr;
2436 }
2437
2438 int info_count() const {
2439 return _info_len;
2440 }
2441
2442 CodeEmitInfo* info_at(int index) const {
2443 assert(index < _info_len, "index out of bounds");
2444 return _info_new[index];
2445 }
2446
2447 XHandlers* all_xhandler();
2448
2449 // collects all register operands of the instruction
2450 void visit(LIR_Op* op);
2451
2452 #ifdef ASSERT
2453 // check that an operation has no operands
2454 bool no_operands(LIR_Op* op);
2455 #endif
2456
2457 // LIR_Op visitor functions use these to fill in the state
2458 void do_input(LIR_Opr& opr) { append(opr, LIR_OpVisitState::inputMode); }
2459 void do_output(LIR_Opr& opr) { append(opr, LIR_OpVisitState::outputMode); }
2460 void do_temp(LIR_Opr& opr) { append(opr, LIR_OpVisitState::tempMode); }
2461 void do_info(CodeEmitInfo* info) { append(info); }
2462
2463 void do_stub(CodeStub* stub);
2464 void do_call() { _has_call = true; }
2465 void do_slow_case() { _has_slow_case = true; }
2466 void do_slow_case(CodeEmitInfo* info) {
2467 _has_slow_case = true;
2468 append(info);
2469 }
2470 };
2471
2472
2473 inline LIR_Opr LIR_OprDesc::illegalOpr() { return LIR_OprFact::illegalOpr; };
2474
2475 #endif // SHARE_C1_C1_LIR_HPP
--- EOF ---