1 /*
2 * Copyright (c) 2000, 2012, 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_VM_C1_C1_LIR_HPP
26 #define SHARE_VM_C1_C1_LIR_HPP
27
28 #include "c1/c1_ValueType.hpp"
29 #include "oops/method.hpp"
30
31 class BlockBegin;
32 class BlockList;
33 class LIR_Assembler;
34 class CodeEmitInfo;
35 class CodeStub;
36 class CodeStubList;
37 class ArrayCopyStub;
38 class LIR_Op;
39 class ciType;
40 class ValueType;
41 class LIR_OpVisitState;
42 class FpuStackSim;
43
44 //---------------------------------------------------------------------
45 // LIR Operands
46 // LIR_OprDesc
47 // LIR_OprPtr
48 // LIR_Const
49 // LIR_Address
50 //---------------------------------------------------------------------
51 class LIR_OprDesc;
52 class LIR_OprPtr;
53 class LIR_Const;
54 class LIR_Address;
55 class LIR_OprVisitor;
56
57
58 typedef LIR_OprDesc* LIR_Opr;
59 typedef int RegNr;
60
61 define_array(LIR_OprArray, LIR_Opr)
62 define_stack(LIR_OprList, LIR_OprArray)
63
64 define_array(LIR_OprRefArray, LIR_Opr*)
65 define_stack(LIR_OprRefList, LIR_OprRefArray)
66
67 define_array(CodeEmitInfoArray, CodeEmitInfo*)
68 define_stack(CodeEmitInfoList, CodeEmitInfoArray)
69
70 define_array(LIR_OpArray, LIR_Op*)
71 define_stack(LIR_OpList, LIR_OpArray)
72
73 // define LIR_OprPtr early so LIR_OprDesc can refer to it
74 class LIR_OprPtr: public CompilationResourceObj {
75 public:
76 bool is_oop_pointer() const { return (type() == T_OBJECT); }
77 bool is_float_kind() const { BasicType t = type(); return (t == T_FLOAT) || (t == T_DOUBLE); }
78
79 virtual LIR_Const* as_constant() { return NULL; }
80 virtual LIR_Address* as_address() { return NULL; }
81 virtual BasicType type() const = 0;
82 virtual void print_value_on(outputStream* out) const = 0;
83 };
84
85
86
87 // LIR constants
88 class LIR_Const: public LIR_OprPtr {
89 private:
90 JavaValue _value;
91
92 void type_check(BasicType t) const { assert(type() == t, "type check"); }
93 void type_check(BasicType t1, BasicType t2) const { assert(type() == t1 || type() == t2, "type check"); }
94 void type_check(BasicType t1, BasicType t2, BasicType t3) const { assert(type() == t1 || type() == t2 || type() == t3, "type check"); }
95
96 public:
97 LIR_Const(jint i, bool is_address=false) { _value.set_type(is_address?T_ADDRESS:T_INT); _value.set_jint(i); }
98 LIR_Const(jlong l) { _value.set_type(T_LONG); _value.set_jlong(l); }
99 LIR_Const(jfloat f) { _value.set_type(T_FLOAT); _value.set_jfloat(f); }
100 LIR_Const(jdouble d) { _value.set_type(T_DOUBLE); _value.set_jdouble(d); }
101 LIR_Const(jobject o) { _value.set_type(T_OBJECT); _value.set_jobject(o); }
102 LIR_Const(void* p) {
103 #ifdef _LP64
104 assert(sizeof(jlong) >= sizeof(p), "too small");;
105 _value.set_type(T_LONG); _value.set_jlong((jlong)p);
106 #else
107 assert(sizeof(jint) >= sizeof(p), "too small");;
108 _value.set_type(T_INT); _value.set_jint((jint)p);
109 #endif
110 }
111 LIR_Const(Metadata* m) {
112 _value.set_type(T_METADATA);
113 #ifdef _LP64
114 _value.set_jlong((jlong)m);
115 #else
116 _value.set_jint((jint)m);
117 #endif // _LP64
118 }
119
120 virtual BasicType type() const { return _value.get_type(); }
121 virtual LIR_Const* as_constant() { return this; }
122
123 jint as_jint() const { type_check(T_INT, T_ADDRESS); return _value.get_jint(); }
124 jlong as_jlong() const { type_check(T_LONG ); return _value.get_jlong(); }
125 jfloat as_jfloat() const { type_check(T_FLOAT ); return _value.get_jfloat(); }
126 jdouble as_jdouble() const { type_check(T_DOUBLE); return _value.get_jdouble(); }
127 jobject as_jobject() const { type_check(T_OBJECT); return _value.get_jobject(); }
128 jint as_jint_lo() const { type_check(T_LONG ); return low(_value.get_jlong()); }
129 jint as_jint_hi() const { type_check(T_LONG ); return high(_value.get_jlong()); }
130
131 #ifdef _LP64
132 address as_pointer() const { type_check(T_LONG ); return (address)_value.get_jlong(); }
133 Metadata* as_metadata() const { type_check(T_METADATA); return (Metadata*)_value.get_jlong(); }
134 #else
135 address as_pointer() const { type_check(T_INT ); return (address)_value.get_jint(); }
136 Metadata* as_metadata() const { type_check(T_METADATA); return (Metadata*)_value.get_jint(); }
137 #endif
138
139
140 jint as_jint_bits() const { type_check(T_FLOAT, T_INT, T_ADDRESS); return _value.get_jint(); }
141 jint as_jint_lo_bits() const {
142 if (type() == T_DOUBLE) {
143 return low(jlong_cast(_value.get_jdouble()));
144 } else {
145 return as_jint_lo();
146 }
147 }
148 jint as_jint_hi_bits() const {
149 if (type() == T_DOUBLE) {
150 return high(jlong_cast(_value.get_jdouble()));
151 } else {
152 return as_jint_hi();
153 }
154 }
155 jlong as_jlong_bits() const {
156 if (type() == T_DOUBLE) {
157 return jlong_cast(_value.get_jdouble());
158 } else {
159 return as_jlong();
160 }
161 }
162
163 virtual void print_value_on(outputStream* out) const PRODUCT_RETURN;
164
165
166 bool is_zero_float() {
167 jfloat f = as_jfloat();
168 jfloat ok = 0.0f;
169 return jint_cast(f) == jint_cast(ok);
170 }
171
172 bool is_one_float() {
173 jfloat f = as_jfloat();
174 return !g_isnan(f) && g_isfinite(f) && f == 1.0;
175 }
176
177 bool is_zero_double() {
178 jdouble d = as_jdouble();
179 jdouble ok = 0.0;
180 return jlong_cast(d) == jlong_cast(ok);
181 }
182
183 bool is_one_double() {
184 jdouble d = as_jdouble();
185 return !g_isnan(d) && g_isfinite(d) && d == 1.0;
186 }
187 };
188
189
190 //---------------------LIR Operand descriptor------------------------------------
191 //
192 // The class LIR_OprDesc represents a LIR instruction operand;
193 // it can be a register (ALU/FPU), stack location or a constant;
194 // Constants and addresses are represented as resource area allocated
195 // structures (see above).
196 // Registers and stack locations are inlined into the this pointer
197 // (see value function).
198
199 class LIR_OprDesc: public CompilationResourceObj {
200 public:
201 // value structure:
202 // data opr-type opr-kind
203 // +--------------+-------+-------+
204 // [max...........|7 6 5 4|3 2 1 0]
205 // ^
206 // is_pointer bit
207 //
208 // lowest bit cleared, means it is a structure pointer
209 // we need 4 bits to represent types
210
211 private:
212 friend class LIR_OprFact;
213
214 // Conversion
215 intptr_t value() const { return (intptr_t) this; }
216
217 bool check_value_mask(intptr_t mask, intptr_t masked_value) const {
218 return (value() & mask) == masked_value;
219 }
220
221 enum OprKind {
222 pointer_value = 0
223 , stack_value = 1
224 , cpu_register = 3
225 , fpu_register = 5
226 , illegal_value = 7
227 };
228
229 enum OprBits {
230 pointer_bits = 1
231 , kind_bits = 3
232 , type_bits = 4
233 , size_bits = 2
234 , destroys_bits = 1
235 , virtual_bits = 1
236 , is_xmm_bits = 1
237 , last_use_bits = 1
238 , is_fpu_stack_offset_bits = 1 // used in assertion checking on x86 for FPU stack slot allocation
239 , non_data_bits = kind_bits + type_bits + size_bits + destroys_bits + last_use_bits +
240 is_fpu_stack_offset_bits + virtual_bits + is_xmm_bits
241 , data_bits = BitsPerInt - non_data_bits
242 , reg_bits = data_bits / 2 // for two registers in one value encoding
243 };
244
245 enum OprShift {
246 kind_shift = 0
247 , type_shift = kind_shift + kind_bits
248 , size_shift = type_shift + type_bits
249 , destroys_shift = size_shift + size_bits
250 , last_use_shift = destroys_shift + destroys_bits
251 , is_fpu_stack_offset_shift = last_use_shift + last_use_bits
252 , virtual_shift = is_fpu_stack_offset_shift + is_fpu_stack_offset_bits
253 , is_xmm_shift = virtual_shift + virtual_bits
254 , data_shift = is_xmm_shift + is_xmm_bits
255 , reg1_shift = data_shift
256 , reg2_shift = data_shift + reg_bits
257
258 };
259
260 enum OprSize {
261 single_size = 0 << size_shift
262 , double_size = 1 << size_shift
263 };
264
265 enum OprMask {
266 kind_mask = right_n_bits(kind_bits)
267 , type_mask = right_n_bits(type_bits) << type_shift
268 , size_mask = right_n_bits(size_bits) << size_shift
269 , last_use_mask = right_n_bits(last_use_bits) << last_use_shift
270 , is_fpu_stack_offset_mask = right_n_bits(is_fpu_stack_offset_bits) << is_fpu_stack_offset_shift
271 , virtual_mask = right_n_bits(virtual_bits) << virtual_shift
272 , is_xmm_mask = right_n_bits(is_xmm_bits) << is_xmm_shift
273 , pointer_mask = right_n_bits(pointer_bits)
274 , lower_reg_mask = right_n_bits(reg_bits)
275 , no_type_mask = (int)(~(type_mask | last_use_mask | is_fpu_stack_offset_mask))
276 };
277
278 uintptr_t data() const { return value() >> data_shift; }
279 int lo_reg_half() const { return data() & lower_reg_mask; }
280 int hi_reg_half() const { return (data() >> reg_bits) & lower_reg_mask; }
281 OprKind kind_field() const { return (OprKind)(value() & kind_mask); }
282 OprSize size_field() const { return (OprSize)(value() & size_mask); }
283
284 static char type_char(BasicType t);
285
286 public:
287 enum {
288 vreg_base = ConcreteRegisterImpl::number_of_registers,
289 vreg_max = (1 << data_bits) - 1
290 };
291
292 static inline LIR_Opr illegalOpr();
293
294 enum OprType {
295 unknown_type = 0 << type_shift // means: not set (catch uninitialized types)
296 , int_type = 1 << type_shift
297 , long_type = 2 << type_shift
298 , object_type = 3 << type_shift
299 , address_type = 4 << type_shift
300 , float_type = 5 << type_shift
301 , double_type = 6 << type_shift
302 , metadata_type = 7 << type_shift
303 };
304 friend OprType as_OprType(BasicType t);
305 friend BasicType as_BasicType(OprType t);
306
307 OprType type_field_valid() const { assert(is_register() || is_stack(), "should not be called otherwise"); return (OprType)(value() & type_mask); }
308 OprType type_field() const { return is_illegal() ? unknown_type : (OprType)(value() & type_mask); }
309
310 static OprSize size_for(BasicType t) {
311 switch (t) {
312 case T_LONG:
313 case T_DOUBLE:
314 return double_size;
315 break;
316
317 case T_FLOAT:
318 case T_BOOLEAN:
319 case T_CHAR:
320 case T_BYTE:
321 case T_SHORT:
322 case T_INT:
323 case T_ADDRESS:
324 case T_OBJECT:
325 case T_ARRAY:
326 case T_METADATA:
327 return single_size;
328 break;
329
330 default:
331 ShouldNotReachHere();
332 return single_size;
333 }
334 }
335
336
337 void validate_type() const PRODUCT_RETURN;
338
339 BasicType type() const {
340 if (is_pointer()) {
341 return pointer()->type();
342 }
343 return as_BasicType(type_field());
344 }
345
346
347 ValueType* value_type() const { return as_ValueType(type()); }
348
349 char type_char() const { return type_char((is_pointer()) ? pointer()->type() : type()); }
350
351 bool is_equal(LIR_Opr opr) const { return this == opr; }
352 // checks whether types are same
353 bool is_same_type(LIR_Opr opr) const {
354 assert(type_field() != unknown_type &&
355 opr->type_field() != unknown_type, "shouldn't see unknown_type");
356 return type_field() == opr->type_field();
357 }
358 bool is_same_register(LIR_Opr opr) {
359 return (is_register() && opr->is_register() &&
360 kind_field() == opr->kind_field() &&
361 (value() & no_type_mask) == (opr->value() & no_type_mask));
362 }
363
364 bool is_pointer() const { return check_value_mask(pointer_mask, pointer_value); }
365 bool is_illegal() const { return kind_field() == illegal_value; }
366 bool is_valid() const { return kind_field() != illegal_value; }
367
368 bool is_register() const { return is_cpu_register() || is_fpu_register(); }
369 bool is_virtual() const { return is_virtual_cpu() || is_virtual_fpu(); }
370
371 bool is_constant() const { return is_pointer() && pointer()->as_constant() != NULL; }
372 bool is_address() const { return is_pointer() && pointer()->as_address() != NULL; }
373
374 bool is_float_kind() const { return is_pointer() ? pointer()->is_float_kind() : (kind_field() == fpu_register); }
375 bool is_oop() const;
376
377 // semantic for fpu- and xmm-registers:
378 // * is_float and is_double return true for xmm_registers
379 // (so is_single_fpu and is_single_xmm are true)
380 // * So you must always check for is_???_xmm prior to is_???_fpu to
381 // distinguish between fpu- and xmm-registers
382
383 bool is_stack() const { validate_type(); return check_value_mask(kind_mask, stack_value); }
384 bool is_single_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | single_size); }
385 bool is_double_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | double_size); }
386
387 bool is_cpu_register() const { validate_type(); return check_value_mask(kind_mask, cpu_register); }
388 bool is_virtual_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register | virtual_mask); }
389 bool is_fixed_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register); }
390 bool is_single_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | single_size); }
391 bool is_double_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | double_size); }
392
393 bool is_fpu_register() const { validate_type(); return check_value_mask(kind_mask, fpu_register); }
394 bool is_virtual_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register | virtual_mask); }
395 bool is_fixed_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register); }
396 bool is_single_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | single_size); }
397 bool is_double_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | double_size); }
398
399 bool is_xmm_register() const { validate_type(); return check_value_mask(kind_mask | is_xmm_mask, fpu_register | is_xmm_mask); }
400 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); }
401 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); }
402
403 // fast accessor functions for special bits that do not work for pointers
404 // (in this functions, the check for is_pointer() is omitted)
405 bool is_single_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, single_size); }
406 bool is_double_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, double_size); }
407 bool is_virtual_register() const { assert(is_register(), "type check"); return check_value_mask(virtual_mask, virtual_mask); }
408 bool is_oop_register() const { assert(is_register() || is_stack(), "type check"); return type_field_valid() == object_type; }
409 BasicType type_register() const { assert(is_register() || is_stack(), "type check"); return as_BasicType(type_field_valid()); }
410
411 bool is_last_use() const { assert(is_register(), "only works for registers"); return (value() & last_use_mask) != 0; }
412 bool is_fpu_stack_offset() const { assert(is_register(), "only works for registers"); return (value() & is_fpu_stack_offset_mask) != 0; }
413 LIR_Opr make_last_use() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | last_use_mask); }
414 LIR_Opr make_fpu_stack_offset() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | is_fpu_stack_offset_mask); }
415
416
417 int single_stack_ix() const { assert(is_single_stack() && !is_virtual(), "type check"); return (int)data(); }
418 int double_stack_ix() const { assert(is_double_stack() && !is_virtual(), "type check"); return (int)data(); }
419 RegNr cpu_regnr() const { assert(is_single_cpu() && !is_virtual(), "type check"); return (RegNr)data(); }
420 RegNr cpu_regnrLo() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
421 RegNr cpu_regnrHi() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
422 RegNr fpu_regnr() const { assert(is_single_fpu() && !is_virtual(), "type check"); return (RegNr)data(); }
423 RegNr fpu_regnrLo() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
424 RegNr fpu_regnrHi() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
425 RegNr xmm_regnr() const { assert(is_single_xmm() && !is_virtual(), "type check"); return (RegNr)data(); }
426 RegNr xmm_regnrLo() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
427 RegNr xmm_regnrHi() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
428 int vreg_number() const { assert(is_virtual(), "type check"); return (RegNr)data(); }
429
430 LIR_OprPtr* pointer() const { assert(is_pointer(), "type check"); return (LIR_OprPtr*)this; }
431 LIR_Const* as_constant_ptr() const { return pointer()->as_constant(); }
432 LIR_Address* as_address_ptr() const { return pointer()->as_address(); }
433
434 Register as_register() const;
435 Register as_register_lo() const;
436 Register as_register_hi() const;
437
438 Register as_pointer_register() {
439 #ifdef _LP64
440 if (is_double_cpu()) {
441 assert(as_register_lo() == as_register_hi(), "should be a single register");
442 return as_register_lo();
443 }
444 #endif
445 return as_register();
446 }
447
448 #ifdef X86
449 XMMRegister as_xmm_float_reg() const;
450 XMMRegister as_xmm_double_reg() const;
451 // for compatibility with RInfo
452 int fpu () const { return lo_reg_half(); }
453 #endif // X86
454 #if defined(SPARC) || defined(ARM) || defined(PPC)
455 FloatRegister as_float_reg () const;
456 FloatRegister as_double_reg () const;
457 #endif
458
459 jint as_jint() const { return as_constant_ptr()->as_jint(); }
460 jlong as_jlong() const { return as_constant_ptr()->as_jlong(); }
461 jfloat as_jfloat() const { return as_constant_ptr()->as_jfloat(); }
462 jdouble as_jdouble() const { return as_constant_ptr()->as_jdouble(); }
463 jobject as_jobject() const { return as_constant_ptr()->as_jobject(); }
464
465 void print() const PRODUCT_RETURN;
466 void print(outputStream* out) const PRODUCT_RETURN;
467 };
468
469
470 inline LIR_OprDesc::OprType as_OprType(BasicType type) {
471 switch (type) {
472 case T_INT: return LIR_OprDesc::int_type;
473 case T_LONG: return LIR_OprDesc::long_type;
474 case T_FLOAT: return LIR_OprDesc::float_type;
475 case T_DOUBLE: return LIR_OprDesc::double_type;
476 case T_OBJECT:
477 case T_ARRAY: return LIR_OprDesc::object_type;
478 case T_ADDRESS: return LIR_OprDesc::address_type;
479 case T_METADATA: return LIR_OprDesc::metadata_type;
480 case T_ILLEGAL: // fall through
481 default: ShouldNotReachHere(); return LIR_OprDesc::unknown_type;
482 }
483 }
484
485 inline BasicType as_BasicType(LIR_OprDesc::OprType t) {
486 switch (t) {
487 case LIR_OprDesc::int_type: return T_INT;
488 case LIR_OprDesc::long_type: return T_LONG;
489 case LIR_OprDesc::float_type: return T_FLOAT;
490 case LIR_OprDesc::double_type: return T_DOUBLE;
491 case LIR_OprDesc::object_type: return T_OBJECT;
492 case LIR_OprDesc::address_type: return T_ADDRESS;
493 case LIR_OprDesc::metadata_type:return T_METADATA;
494 case LIR_OprDesc::unknown_type: // fall through
495 default: ShouldNotReachHere(); return T_ILLEGAL;
496 }
497 }
498
499
500 // LIR_Address
501 class LIR_Address: public LIR_OprPtr {
502 friend class LIR_OpVisitState;
503
504 public:
505 // NOTE: currently these must be the log2 of the scale factor (and
506 // must also be equivalent to the ScaleFactor enum in
507 // assembler_i486.hpp)
508 enum Scale {
509 times_1 = 0,
510 times_2 = 1,
511 times_4 = 2,
512 times_8 = 3
513 };
514
515 private:
516 LIR_Opr _base;
517 LIR_Opr _index;
518 Scale _scale;
519 intx _disp;
520 BasicType _type;
521
522 public:
523 LIR_Address(LIR_Opr base, LIR_Opr index, BasicType type):
524 _base(base)
525 , _index(index)
526 , _scale(times_1)
527 , _type(type)
528 , _disp(0) { verify(); }
529
530 LIR_Address(LIR_Opr base, intx disp, BasicType type):
531 _base(base)
532 , _index(LIR_OprDesc::illegalOpr())
533 , _scale(times_1)
534 , _type(type)
535 , _disp(disp) { verify(); }
536
537 LIR_Address(LIR_Opr base, BasicType type):
538 _base(base)
539 , _index(LIR_OprDesc::illegalOpr())
540 , _scale(times_1)
541 , _type(type)
542 , _disp(0) { verify(); }
543
544 #if defined(X86) || defined(ARM)
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 , _type(type)
550 , _disp(disp) { verify(); }
551 #endif // X86 || ARM
552
553 LIR_Opr base() const { return _base; }
554 LIR_Opr index() const { return _index; }
555 Scale scale() const { return _scale; }
556 intx disp() const { return _disp; }
557
558 bool equals(LIR_Address* other) const { return base() == other->base() && index() == other->index() && disp() == other->disp() && scale() == other->scale(); }
559
560 virtual LIR_Address* as_address() { return this; }
561 virtual BasicType type() const { return _type; }
562 virtual void print_value_on(outputStream* out) const PRODUCT_RETURN;
563
564 void verify() const PRODUCT_RETURN;
565
566 static Scale scale(BasicType type);
567 };
568
569
570 // operand factory
571 class LIR_OprFact: public AllStatic {
572 public:
573
574 static LIR_Opr illegalOpr;
575
576 static LIR_Opr single_cpu(int reg) {
577 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
578 LIR_OprDesc::int_type |
579 LIR_OprDesc::cpu_register |
580 LIR_OprDesc::single_size);
581 }
582 static LIR_Opr single_cpu_oop(int reg) {
583 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
584 LIR_OprDesc::object_type |
585 LIR_OprDesc::cpu_register |
586 LIR_OprDesc::single_size);
587 }
588 static LIR_Opr single_cpu_address(int reg) {
589 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
590 LIR_OprDesc::address_type |
591 LIR_OprDesc::cpu_register |
592 LIR_OprDesc::single_size);
593 }
594 static LIR_Opr single_cpu_metadata(int reg) {
595 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
596 LIR_OprDesc::metadata_type |
597 LIR_OprDesc::cpu_register |
598 LIR_OprDesc::single_size);
599 }
600 static LIR_Opr double_cpu(int reg1, int reg2) {
601 LP64_ONLY(assert(reg1 == reg2, "must be identical"));
602 return (LIR_Opr)(intptr_t)((reg1 << LIR_OprDesc::reg1_shift) |
603 (reg2 << LIR_OprDesc::reg2_shift) |
604 LIR_OprDesc::long_type |
605 LIR_OprDesc::cpu_register |
606 LIR_OprDesc::double_size);
607 }
608
609 static LIR_Opr single_fpu(int reg) { 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 #if defined(ARM)
614 static LIR_Opr double_fpu(int reg1, int reg2) { return (LIR_Opr)((reg1 << LIR_OprDesc::reg1_shift) | (reg2 << LIR_OprDesc::reg2_shift) | LIR_OprDesc::double_type | LIR_OprDesc::fpu_register | LIR_OprDesc::double_size); }
615 static LIR_Opr single_softfp(int reg) { return (LIR_Opr)((reg << LIR_OprDesc::reg1_shift) | LIR_OprDesc::float_type | LIR_OprDesc::cpu_register | LIR_OprDesc::single_size); }
616 static LIR_Opr double_softfp(int reg1, int reg2) { return (LIR_Opr)((reg1 << LIR_OprDesc::reg1_shift) | (reg2 << LIR_OprDesc::reg2_shift) | LIR_OprDesc::double_type | LIR_OprDesc::cpu_register | LIR_OprDesc::double_size); }
617 #endif
618 #ifdef SPARC
619 static LIR_Opr double_fpu(int reg1, int reg2) { return (LIR_Opr)(intptr_t)((reg1 << LIR_OprDesc::reg1_shift) |
620 (reg2 << LIR_OprDesc::reg2_shift) |
621 LIR_OprDesc::double_type |
622 LIR_OprDesc::fpu_register |
623 LIR_OprDesc::double_size); }
624 #endif
625 #ifdef X86
626 static LIR_Opr double_fpu(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
627 (reg << LIR_OprDesc::reg2_shift) |
628 LIR_OprDesc::double_type |
629 LIR_OprDesc::fpu_register |
630 LIR_OprDesc::double_size); }
631
632 static LIR_Opr single_xmm(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
633 LIR_OprDesc::float_type |
634 LIR_OprDesc::fpu_register |
635 LIR_OprDesc::single_size |
636 LIR_OprDesc::is_xmm_mask); }
637 static LIR_Opr double_xmm(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
638 (reg << LIR_OprDesc::reg2_shift) |
639 LIR_OprDesc::double_type |
640 LIR_OprDesc::fpu_register |
641 LIR_OprDesc::double_size |
642 LIR_OprDesc::is_xmm_mask); }
643 #endif // X86
644 #ifdef PPC
645 static LIR_Opr double_fpu(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
646 (reg << LIR_OprDesc::reg2_shift) |
647 LIR_OprDesc::double_type |
648 LIR_OprDesc::fpu_register |
649 LIR_OprDesc::double_size); }
650 static LIR_Opr single_softfp(int reg) { return (LIR_Opr)((reg << LIR_OprDesc::reg1_shift) |
651 LIR_OprDesc::float_type |
652 LIR_OprDesc::cpu_register |
653 LIR_OprDesc::single_size); }
654 static LIR_Opr double_softfp(int reg1, int reg2) { return (LIR_Opr)((reg2 << LIR_OprDesc::reg1_shift) |
655 (reg1 << LIR_OprDesc::reg2_shift) |
656 LIR_OprDesc::double_type |
657 LIR_OprDesc::cpu_register |
658 LIR_OprDesc::double_size); }
659 #endif // PPC
660
661 static LIR_Opr virtual_register(int index, BasicType type) {
662 LIR_Opr res;
663 switch (type) {
664 case T_OBJECT: // fall through
665 case T_ARRAY:
666 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
667 LIR_OprDesc::object_type |
668 LIR_OprDesc::cpu_register |
669 LIR_OprDesc::single_size |
670 LIR_OprDesc::virtual_mask);
671 break;
672
673 case T_METADATA:
674 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
675 LIR_OprDesc::metadata_type|
676 LIR_OprDesc::cpu_register |
677 LIR_OprDesc::single_size |
678 LIR_OprDesc::virtual_mask);
679 break;
680
681 case T_INT:
682 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
683 LIR_OprDesc::int_type |
684 LIR_OprDesc::cpu_register |
685 LIR_OprDesc::single_size |
686 LIR_OprDesc::virtual_mask);
687 break;
688
689 case T_ADDRESS:
690 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
691 LIR_OprDesc::address_type |
692 LIR_OprDesc::cpu_register |
693 LIR_OprDesc::single_size |
694 LIR_OprDesc::virtual_mask);
695 break;
696
697 case T_LONG:
698 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
699 LIR_OprDesc::long_type |
700 LIR_OprDesc::cpu_register |
701 LIR_OprDesc::double_size |
702 LIR_OprDesc::virtual_mask);
703 break;
704
705 #ifdef __SOFTFP__
706 case T_FLOAT:
707 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
708 LIR_OprDesc::float_type |
709 LIR_OprDesc::cpu_register |
710 LIR_OprDesc::single_size |
711 LIR_OprDesc::virtual_mask);
712 break;
713 case T_DOUBLE:
714 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
715 LIR_OprDesc::double_type |
716 LIR_OprDesc::cpu_register |
717 LIR_OprDesc::double_size |
718 LIR_OprDesc::virtual_mask);
719 break;
720 #else // __SOFTFP__
721 case T_FLOAT:
722 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
723 LIR_OprDesc::float_type |
724 LIR_OprDesc::fpu_register |
725 LIR_OprDesc::single_size |
726 LIR_OprDesc::virtual_mask);
727 break;
728
729 case
730 T_DOUBLE: res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
731 LIR_OprDesc::double_type |
732 LIR_OprDesc::fpu_register |
733 LIR_OprDesc::double_size |
734 LIR_OprDesc::virtual_mask);
735 break;
736 #endif // __SOFTFP__
737 default: ShouldNotReachHere(); res = illegalOpr;
738 }
739
740 #ifdef ASSERT
741 res->validate_type();
742 assert(res->vreg_number() == index, "conversion check");
743 assert(index >= LIR_OprDesc::vreg_base, "must start at vreg_base");
744 assert(index <= (max_jint >> LIR_OprDesc::data_shift), "index is too big");
745
746 // old-style calculation; check if old and new method are equal
747 LIR_OprDesc::OprType t = as_OprType(type);
748 #ifdef __SOFTFP__
749 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
750 t |
751 LIR_OprDesc::cpu_register |
752 LIR_OprDesc::size_for(type) | LIR_OprDesc::virtual_mask);
753 #else // __SOFTFP__
754 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | t |
755 ((type == T_FLOAT || type == T_DOUBLE) ? LIR_OprDesc::fpu_register : LIR_OprDesc::cpu_register) |
756 LIR_OprDesc::size_for(type) | LIR_OprDesc::virtual_mask);
757 assert(res == old_res, "old and new method not equal");
758 #endif // __SOFTFP__
759 #endif // ASSERT
760
761 return res;
762 }
763
764 // 'index' is computed by FrameMap::local_stack_pos(index); do not use other parameters as
765 // the index is platform independent; a double stack useing indeces 2 and 3 has always
766 // index 2.
767 static LIR_Opr stack(int index, BasicType type) {
768 LIR_Opr res;
769 switch (type) {
770 case T_OBJECT: // fall through
771 case T_ARRAY:
772 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
773 LIR_OprDesc::object_type |
774 LIR_OprDesc::stack_value |
775 LIR_OprDesc::single_size);
776 break;
777
778 case T_METADATA:
779 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
780 LIR_OprDesc::metadata_type |
781 LIR_OprDesc::stack_value |
782 LIR_OprDesc::single_size);
783 break;
784 case T_INT:
785 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
786 LIR_OprDesc::int_type |
787 LIR_OprDesc::stack_value |
788 LIR_OprDesc::single_size);
789 break;
790
791 case T_ADDRESS:
792 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
793 LIR_OprDesc::address_type |
794 LIR_OprDesc::stack_value |
795 LIR_OprDesc::single_size);
796 break;
797
798 case T_LONG:
799 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
800 LIR_OprDesc::long_type |
801 LIR_OprDesc::stack_value |
802 LIR_OprDesc::double_size);
803 break;
804
805 case T_FLOAT:
806 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
807 LIR_OprDesc::float_type |
808 LIR_OprDesc::stack_value |
809 LIR_OprDesc::single_size);
810 break;
811 case T_DOUBLE:
812 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
813 LIR_OprDesc::double_type |
814 LIR_OprDesc::stack_value |
815 LIR_OprDesc::double_size);
816 break;
817
818 default: ShouldNotReachHere(); res = illegalOpr;
819 }
820
821 #ifdef ASSERT
822 assert(index >= 0, "index must be positive");
823 assert(index <= (max_jint >> LIR_OprDesc::data_shift), "index is too big");
824
825 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
826 LIR_OprDesc::stack_value |
827 as_OprType(type) |
828 LIR_OprDesc::size_for(type));
829 assert(res == old_res, "old and new method not equal");
830 #endif
831
832 return res;
833 }
834
835 static LIR_Opr intConst(jint i) { return (LIR_Opr)(new LIR_Const(i)); }
836 static LIR_Opr longConst(jlong l) { return (LIR_Opr)(new LIR_Const(l)); }
837 static LIR_Opr floatConst(jfloat f) { return (LIR_Opr)(new LIR_Const(f)); }
838 static LIR_Opr doubleConst(jdouble d) { return (LIR_Opr)(new LIR_Const(d)); }
839 static LIR_Opr oopConst(jobject o) { return (LIR_Opr)(new LIR_Const(o)); }
840 static LIR_Opr address(LIR_Address* a) { return (LIR_Opr)a; }
841 static LIR_Opr intptrConst(void* p) { return (LIR_Opr)(new LIR_Const(p)); }
842 static LIR_Opr intptrConst(intptr_t v) { return (LIR_Opr)(new LIR_Const((void*)v)); }
843 static LIR_Opr illegal() { return (LIR_Opr)-1; }
844 static LIR_Opr addressConst(jint i) { return (LIR_Opr)(new LIR_Const(i, true)); }
845 static LIR_Opr metadataConst(Metadata* m) { return (LIR_Opr)(new LIR_Const(m)); }
846
847 static LIR_Opr value_type(ValueType* type);
848 static LIR_Opr dummy_value_type(ValueType* type);
849 };
850
851
852 //-------------------------------------------------------------------------------
853 // LIR Instructions
854 //-------------------------------------------------------------------------------
855 //
856 // Note:
857 // - every instruction has a result operand
858 // - every instruction has an CodeEmitInfo operand (can be revisited later)
859 // - every instruction has a LIR_OpCode operand
860 // - LIR_OpN, means an instruction that has N input operands
861 //
862 // class hierarchy:
863 //
864 class LIR_Op;
865 class LIR_Op0;
866 class LIR_OpLabel;
867 class LIR_Op1;
868 class LIR_OpBranch;
869 class LIR_OpConvert;
870 class LIR_OpAllocObj;
871 class LIR_OpRoundFP;
872 class LIR_Op2;
873 class LIR_OpDelay;
874 class LIR_Op3;
875 class LIR_OpAllocArray;
876 class LIR_OpCall;
877 class LIR_OpJavaCall;
878 class LIR_OpRTCall;
879 class LIR_OpArrayCopy;
880 class LIR_OpLock;
881 class LIR_OpTypeCheck;
882 class LIR_OpCompareAndSwap;
883 class LIR_OpProfileCall;
884 class LIR_OpAssert;
885
886
887 // LIR operation codes
888 enum LIR_Code {
889 lir_none
890 , begin_op0
891 , lir_word_align
892 , lir_label
893 , lir_nop
894 , lir_backwardbranch_target
895 , lir_std_entry
896 , lir_osr_entry
897 , lir_build_frame
898 , lir_fpop_raw
899 , lir_24bit_FPU
900 , lir_reset_FPU
901 , lir_breakpoint
902 , lir_rtcall
903 , lir_membar
904 , lir_membar_acquire
905 , lir_membar_release
906 , lir_membar_loadload
907 , lir_membar_storestore
908 , lir_membar_loadstore
909 , lir_membar_storeload
910 , lir_get_thread
911 , end_op0
912 , begin_op1
913 , lir_fxch
914 , lir_fld
915 , lir_ffree
916 , lir_push
917 , lir_pop
918 , lir_null_check
919 , lir_return
920 , lir_leal
921 , lir_neg
922 , lir_branch
923 , lir_cond_float_branch
924 , lir_move
925 , lir_prefetchr
926 , lir_prefetchw
927 , lir_convert
928 , lir_alloc_object
929 , lir_monaddr
930 , lir_roundfp
931 , lir_safepoint
932 , lir_pack64
933 , lir_unpack64
934 , lir_unwind
935 , end_op1
936 , begin_op2
937 , lir_cmp
938 , lir_cmp_l2i
939 , lir_ucmp_fd2i
940 , lir_cmp_fd2i
941 , lir_cmove
942 , lir_add
943 , lir_sub
944 , lir_mul
945 , lir_mul_strictfp
946 , lir_div
947 , lir_div_strictfp
948 , lir_rem
949 , lir_sqrt
950 , lir_abs
951 , lir_sin
952 , lir_cos
953 , lir_tan
954 , lir_log
955 , lir_log10
956 , lir_exp
957 , lir_pow
958 , lir_logic_and
959 , lir_logic_or
960 , lir_logic_xor
961 , lir_shl
962 , lir_shr
963 , lir_ushr
964 , lir_alloc_array
965 , lir_throw
966 , lir_compare_to
967 , lir_xadd
968 , lir_xchg
969 , end_op2
970 , begin_op3
971 , lir_idiv
972 , lir_irem
973 , end_op3
974 , begin_opJavaCall
975 , lir_static_call
976 , lir_optvirtual_call
977 , lir_icvirtual_call
978 , lir_virtual_call
979 , lir_dynamic_call
980 , end_opJavaCall
981 , begin_opArrayCopy
982 , lir_arraycopy
983 , end_opArrayCopy
984 , begin_opLock
985 , lir_lock
986 , lir_unlock
987 , end_opLock
988 , begin_delay_slot
989 , lir_delay_slot
990 , end_delay_slot
991 , begin_opTypeCheck
992 , lir_instanceof
993 , lir_checkcast
994 , lir_store_check
995 , end_opTypeCheck
996 , begin_opCompareAndSwap
997 , lir_cas_long
998 , lir_cas_obj
999 , lir_cas_int
1000 , end_opCompareAndSwap
1001 , begin_opMDOProfile
1002 , lir_profile_call
1003 , end_opMDOProfile
1004 , begin_opAssert
1005 , lir_assert
1006 , end_opAssert
1007 };
1008
1009
1010 enum LIR_Condition {
1011 lir_cond_equal
1012 , lir_cond_notEqual
1013 , lir_cond_less
1014 , lir_cond_lessEqual
1015 , lir_cond_greaterEqual
1016 , lir_cond_greater
1017 , lir_cond_belowEqual
1018 , lir_cond_aboveEqual
1019 , lir_cond_always
1020 , lir_cond_unknown = -1
1021 };
1022
1023
1024 enum LIR_PatchCode {
1025 lir_patch_none,
1026 lir_patch_low,
1027 lir_patch_high,
1028 lir_patch_normal
1029 };
1030
1031
1032 enum LIR_MoveKind {
1033 lir_move_normal,
1034 lir_move_volatile,
1035 lir_move_unaligned,
1036 lir_move_wide,
1037 lir_move_max_flag
1038 };
1039
1040
1041 // --------------------------------------------------
1042 // LIR_Op
1043 // --------------------------------------------------
1044 class LIR_Op: public CompilationResourceObj {
1045 friend class LIR_OpVisitState;
1046
1047 #ifdef ASSERT
1048 private:
1049 const char * _file;
1050 int _line;
1051 #endif
1052
1053 protected:
1054 LIR_Opr _result;
1055 unsigned short _code;
1056 unsigned short _flags;
1057 CodeEmitInfo* _info;
1058 int _id; // value id for register allocation
1059 int _fpu_pop_count;
1060 Instruction* _source; // for debugging
1061
1062 static void print_condition(outputStream* out, LIR_Condition cond) PRODUCT_RETURN;
1063
1064 protected:
1065 static bool is_in_range(LIR_Code test, LIR_Code start, LIR_Code end) { return start < test && test < end; }
1066
1067 public:
1068 LIR_Op()
1069 : _result(LIR_OprFact::illegalOpr)
1070 , _code(lir_none)
1071 , _flags(0)
1072 , _info(NULL)
1073 #ifdef ASSERT
1074 , _file(NULL)
1075 , _line(0)
1076 #endif
1077 , _fpu_pop_count(0)
1078 , _source(NULL)
1079 , _id(-1) {}
1080
1081 LIR_Op(LIR_Code code, LIR_Opr result, CodeEmitInfo* info)
1082 : _result(result)
1083 , _code(code)
1084 , _flags(0)
1085 , _info(info)
1086 #ifdef ASSERT
1087 , _file(NULL)
1088 , _line(0)
1089 #endif
1090 , _fpu_pop_count(0)
1091 , _source(NULL)
1092 , _id(-1) {}
1093
1094 CodeEmitInfo* info() const { return _info; }
1095 LIR_Code code() const { return (LIR_Code)_code; }
1096 LIR_Opr result_opr() const { return _result; }
1097 void set_result_opr(LIR_Opr opr) { _result = opr; }
1098
1099 #ifdef ASSERT
1100 void set_file_and_line(const char * file, int line) {
1101 _file = file;
1102 _line = line;
1103 }
1104 #endif
1105
1106 virtual const char * name() const PRODUCT_RETURN0;
1107
1108 int id() const { return _id; }
1109 void set_id(int id) { _id = id; }
1110
1111 // FPU stack simulation helpers -- only used on Intel
1112 void set_fpu_pop_count(int count) { assert(count >= 0 && count <= 1, "currently only 0 and 1 are valid"); _fpu_pop_count = count; }
1113 int fpu_pop_count() const { return _fpu_pop_count; }
1114 bool pop_fpu_stack() { return _fpu_pop_count > 0; }
1115
1116 Instruction* source() const { return _source; }
1117 void set_source(Instruction* ins) { _source = ins; }
1118
1119 virtual void emit_code(LIR_Assembler* masm) = 0;
1120 virtual void print_instr(outputStream* out) const = 0;
1121 virtual void print_on(outputStream* st) const PRODUCT_RETURN;
1122
1123 virtual LIR_OpCall* as_OpCall() { return NULL; }
1124 virtual LIR_OpJavaCall* as_OpJavaCall() { return NULL; }
1125 virtual LIR_OpLabel* as_OpLabel() { return NULL; }
1126 virtual LIR_OpDelay* as_OpDelay() { return NULL; }
1127 virtual LIR_OpLock* as_OpLock() { return NULL; }
1128 virtual LIR_OpAllocArray* as_OpAllocArray() { return NULL; }
1129 virtual LIR_OpAllocObj* as_OpAllocObj() { return NULL; }
1130 virtual LIR_OpRoundFP* as_OpRoundFP() { return NULL; }
1131 virtual LIR_OpBranch* as_OpBranch() { return NULL; }
1132 virtual LIR_OpRTCall* as_OpRTCall() { return NULL; }
1133 virtual LIR_OpConvert* as_OpConvert() { return NULL; }
1134 virtual LIR_Op0* as_Op0() { return NULL; }
1135 virtual LIR_Op1* as_Op1() { return NULL; }
1136 virtual LIR_Op2* as_Op2() { return NULL; }
1137 virtual LIR_Op3* as_Op3() { return NULL; }
1138 virtual LIR_OpArrayCopy* as_OpArrayCopy() { 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_OpAssert* as_OpAssert() { return NULL; }
1143
1144 virtual void verify() const {}
1145 };
1146
1147 // for calls
1148 class LIR_OpCall: public LIR_Op {
1149 friend class LIR_OpVisitState;
1150
1151 protected:
1152 address _addr;
1153 LIR_OprList* _arguments;
1154 protected:
1155 LIR_OpCall(LIR_Code code, address addr, LIR_Opr result,
1156 LIR_OprList* arguments, CodeEmitInfo* info = NULL)
1157 : LIR_Op(code, result, info)
1158 , _arguments(arguments)
1159 , _addr(addr) {}
1160
1161 public:
1162 address addr() const { return _addr; }
1163 const LIR_OprList* arguments() const { return _arguments; }
1164 virtual LIR_OpCall* as_OpCall() { return this; }
1165 };
1166
1167
1168 // --------------------------------------------------
1169 // LIR_OpJavaCall
1170 // --------------------------------------------------
1171 class LIR_OpJavaCall: public LIR_OpCall {
1172 friend class LIR_OpVisitState;
1173
1174 private:
1175 ciMethod* _method;
1176 LIR_Opr _receiver;
1177 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.
1178
1179 public:
1180 LIR_OpJavaCall(LIR_Code code, ciMethod* method,
1181 LIR_Opr receiver, LIR_Opr result,
1182 address addr, LIR_OprList* arguments,
1183 CodeEmitInfo* info)
1184 : LIR_OpCall(code, addr, result, arguments, info)
1185 , _receiver(receiver)
1186 , _method(method)
1187 , _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr)
1188 { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); }
1189
1190 LIR_OpJavaCall(LIR_Code code, ciMethod* method,
1191 LIR_Opr receiver, LIR_Opr result, intptr_t vtable_offset,
1192 LIR_OprList* arguments, CodeEmitInfo* info)
1193 : LIR_OpCall(code, (address)vtable_offset, result, arguments, info)
1194 , _receiver(receiver)
1195 , _method(method)
1196 , _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr)
1197 { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); }
1198
1199 LIR_Opr receiver() const { return _receiver; }
1200 ciMethod* method() const { return _method; }
1201
1202 // JSR 292 support.
1203 bool is_invokedynamic() const { return code() == lir_dynamic_call; }
1204 bool is_method_handle_invoke() const {
1205 return
1206 is_invokedynamic() // An invokedynamic is always a MethodHandle call site.
1207 ||
1208 method()->is_compiled_lambda_form() // Java-generated adapter
1209 ||
1210 method()->is_method_handle_intrinsic(); // JVM-generated MH intrinsic
1211 }
1212
1213 intptr_t vtable_offset() const {
1214 assert(_code == lir_virtual_call, "only have vtable for real vcall");
1215 return (intptr_t) addr();
1216 }
1217
1218 virtual void emit_code(LIR_Assembler* masm);
1219 virtual LIR_OpJavaCall* as_OpJavaCall() { return this; }
1220 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1221 };
1222
1223 // --------------------------------------------------
1224 // LIR_OpLabel
1225 // --------------------------------------------------
1226 // Location where a branch can continue
1227 class LIR_OpLabel: public LIR_Op {
1228 friend class LIR_OpVisitState;
1229
1230 private:
1231 Label* _label;
1232 public:
1233 LIR_OpLabel(Label* lbl)
1234 : LIR_Op(lir_label, LIR_OprFact::illegalOpr, NULL)
1235 , _label(lbl) {}
1236 Label* label() const { return _label; }
1237
1238 virtual void emit_code(LIR_Assembler* masm);
1239 virtual LIR_OpLabel* as_OpLabel() { return this; }
1240 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1241 };
1242
1243 // LIR_OpArrayCopy
1244 class LIR_OpArrayCopy: public LIR_Op {
1245 friend class LIR_OpVisitState;
1246
1247 private:
1248 ArrayCopyStub* _stub;
1249 LIR_Opr _src;
1250 LIR_Opr _src_pos;
1251 LIR_Opr _dst;
1252 LIR_Opr _dst_pos;
1253 LIR_Opr _length;
1254 LIR_Opr _tmp;
1255 ciArrayKlass* _expected_type;
1256 int _flags;
1257
1258 public:
1259 enum Flags {
1260 src_null_check = 1 << 0,
1261 dst_null_check = 1 << 1,
1262 src_pos_positive_check = 1 << 2,
1263 dst_pos_positive_check = 1 << 3,
1264 length_positive_check = 1 << 4,
1265 src_range_check = 1 << 5,
1266 dst_range_check = 1 << 6,
1267 type_check = 1 << 7,
1268 overlapping = 1 << 8,
1269 unaligned = 1 << 9,
1270 src_objarray = 1 << 10,
1271 dst_objarray = 1 << 11,
1272 all_flags = (1 << 12) - 1
1273 };
1274
1275 LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length, LIR_Opr tmp,
1276 ciArrayKlass* expected_type, int flags, CodeEmitInfo* info);
1277
1278 LIR_Opr src() const { return _src; }
1279 LIR_Opr src_pos() const { return _src_pos; }
1280 LIR_Opr dst() const { return _dst; }
1281 LIR_Opr dst_pos() const { return _dst_pos; }
1282 LIR_Opr length() const { return _length; }
1283 LIR_Opr tmp() const { return _tmp; }
1284 int flags() const { return _flags; }
1285 ciArrayKlass* expected_type() const { return _expected_type; }
1286 ArrayCopyStub* stub() const { return _stub; }
1287
1288 virtual void emit_code(LIR_Assembler* masm);
1289 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return this; }
1290 void print_instr(outputStream* out) const PRODUCT_RETURN;
1291 };
1292
1293
1294 // --------------------------------------------------
1295 // LIR_Op0
1296 // --------------------------------------------------
1297 class LIR_Op0: public LIR_Op {
1298 friend class LIR_OpVisitState;
1299
1300 public:
1301 LIR_Op0(LIR_Code code)
1302 : LIR_Op(code, LIR_OprFact::illegalOpr, NULL) { assert(is_in_range(code, begin_op0, end_op0), "code check"); }
1303 LIR_Op0(LIR_Code code, LIR_Opr result, CodeEmitInfo* info = NULL)
1304 : LIR_Op(code, result, info) { assert(is_in_range(code, begin_op0, end_op0), "code check"); }
1305
1306 virtual void emit_code(LIR_Assembler* masm);
1307 virtual LIR_Op0* as_Op0() { return this; }
1308 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1309 };
1310
1311
1312 // --------------------------------------------------
1313 // LIR_Op1
1314 // --------------------------------------------------
1315
1316 class LIR_Op1: public LIR_Op {
1317 friend class LIR_OpVisitState;
1318
1319 protected:
1320 LIR_Opr _opr; // input operand
1321 BasicType _type; // Operand types
1322 LIR_PatchCode _patch; // only required with patchin (NEEDS_CLEANUP: do we want a special instruction for patching?)
1323
1324 static void print_patch_code(outputStream* out, LIR_PatchCode code);
1325
1326 void set_kind(LIR_MoveKind kind) {
1327 assert(code() == lir_move, "must be");
1328 _flags = kind;
1329 }
1330
1331 public:
1332 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)
1333 : LIR_Op(code, result, info)
1334 , _opr(opr)
1335 , _patch(patch)
1336 , _type(type) { assert(is_in_range(code, begin_op1, end_op1), "code check"); }
1337
1338 LIR_Op1(LIR_Code code, LIR_Opr opr, LIR_Opr result, BasicType type, LIR_PatchCode patch, CodeEmitInfo* info, LIR_MoveKind kind)
1339 : LIR_Op(code, result, info)
1340 , _opr(opr)
1341 , _patch(patch)
1342 , _type(type) {
1343 assert(code == lir_move, "must be");
1344 set_kind(kind);
1345 }
1346
1347 LIR_Op1(LIR_Code code, LIR_Opr opr, CodeEmitInfo* info)
1348 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1349 , _opr(opr)
1350 , _patch(lir_patch_none)
1351 , _type(T_ILLEGAL) { assert(is_in_range(code, begin_op1, end_op1), "code check"); }
1352
1353 LIR_Opr in_opr() const { return _opr; }
1354 LIR_PatchCode patch_code() const { return _patch; }
1355 BasicType type() const { return _type; }
1356
1357 LIR_MoveKind move_kind() const {
1358 assert(code() == lir_move, "must be");
1359 return (LIR_MoveKind)_flags;
1360 }
1361
1362 virtual void emit_code(LIR_Assembler* masm);
1363 virtual LIR_Op1* as_Op1() { return this; }
1364 virtual const char * name() const PRODUCT_RETURN0;
1365
1366 void set_in_opr(LIR_Opr opr) { _opr = opr; }
1367
1368 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1369 virtual void verify() const;
1370 };
1371
1372
1373 // for runtime calls
1374 class LIR_OpRTCall: public LIR_OpCall {
1375 friend class LIR_OpVisitState;
1376
1377 private:
1378 LIR_Opr _tmp;
1379 public:
1380 LIR_OpRTCall(address addr, LIR_Opr tmp,
1381 LIR_Opr result, LIR_OprList* arguments, CodeEmitInfo* info = NULL)
1382 : LIR_OpCall(lir_rtcall, addr, result, arguments, info)
1383 , _tmp(tmp) {}
1384
1385 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1386 virtual void emit_code(LIR_Assembler* masm);
1387 virtual LIR_OpRTCall* as_OpRTCall() { return this; }
1388
1389 LIR_Opr tmp() const { return _tmp; }
1390
1391 virtual void verify() const;
1392 };
1393
1394
1395 class LIR_OpBranch: public LIR_Op {
1396 friend class LIR_OpVisitState;
1397
1398 private:
1399 LIR_Condition _cond;
1400 BasicType _type;
1401 Label* _label;
1402 BlockBegin* _block; // if this is a branch to a block, this is the block
1403 BlockBegin* _ublock; // if this is a float-branch, this is the unorderd block
1404 CodeStub* _stub; // if this is a branch to a stub, this is the stub
1405
1406 public:
1407 LIR_OpBranch(LIR_Condition cond, BasicType type, Label* lbl)
1408 : LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*) NULL)
1409 , _cond(cond)
1410 , _type(type)
1411 , _label(lbl)
1412 , _block(NULL)
1413 , _ublock(NULL)
1414 , _stub(NULL) { }
1415
1416 LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block);
1417 LIR_OpBranch(LIR_Condition cond, BasicType type, CodeStub* stub);
1418
1419 // for unordered comparisons
1420 LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* ublock);
1421
1422 LIR_Condition cond() const { return _cond; }
1423 BasicType type() const { return _type; }
1424 Label* label() const { return _label; }
1425 BlockBegin* block() const { return _block; }
1426 BlockBegin* ublock() const { return _ublock; }
1427 CodeStub* stub() const { return _stub; }
1428
1429 void change_block(BlockBegin* b);
1430 void change_ublock(BlockBegin* b);
1431 void negate_cond();
1432
1433 virtual void emit_code(LIR_Assembler* masm);
1434 virtual LIR_OpBranch* as_OpBranch() { return this; }
1435 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1436 };
1437
1438
1439 class ConversionStub;
1440
1441 class LIR_OpConvert: public LIR_Op1 {
1442 friend class LIR_OpVisitState;
1443
1444 private:
1445 Bytecodes::Code _bytecode;
1446 ConversionStub* _stub;
1447 #ifdef PPC
1448 LIR_Opr _tmp1;
1449 LIR_Opr _tmp2;
1450 #endif
1451
1452 public:
1453 LIR_OpConvert(Bytecodes::Code code, LIR_Opr opr, LIR_Opr result, ConversionStub* stub)
1454 : LIR_Op1(lir_convert, opr, result)
1455 , _stub(stub)
1456 #ifdef PPC
1457 , _tmp1(LIR_OprDesc::illegalOpr())
1458 , _tmp2(LIR_OprDesc::illegalOpr())
1459 #endif
1460 , _bytecode(code) {}
1461
1462 #ifdef PPC
1463 LIR_OpConvert(Bytecodes::Code code, LIR_Opr opr, LIR_Opr result, ConversionStub* stub
1464 ,LIR_Opr tmp1, LIR_Opr tmp2)
1465 : LIR_Op1(lir_convert, opr, result)
1466 , _stub(stub)
1467 , _tmp1(tmp1)
1468 , _tmp2(tmp2)
1469 , _bytecode(code) {}
1470 #endif
1471
1472 Bytecodes::Code bytecode() const { return _bytecode; }
1473 ConversionStub* stub() const { return _stub; }
1474 #ifdef PPC
1475 LIR_Opr tmp1() const { return _tmp1; }
1476 LIR_Opr tmp2() const { return _tmp2; }
1477 #endif
1478
1479 virtual void emit_code(LIR_Assembler* masm);
1480 virtual LIR_OpConvert* as_OpConvert() { return this; }
1481 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1482
1483 static void print_bytecode(outputStream* out, Bytecodes::Code code) PRODUCT_RETURN;
1484 };
1485
1486
1487 // LIR_OpAllocObj
1488 class LIR_OpAllocObj : public LIR_Op1 {
1489 friend class LIR_OpVisitState;
1490
1491 private:
1492 LIR_Opr _tmp1;
1493 LIR_Opr _tmp2;
1494 LIR_Opr _tmp3;
1495 LIR_Opr _tmp4;
1496 int _hdr_size;
1497 int _obj_size;
1498 CodeStub* _stub;
1499 bool _init_check;
1500
1501 public:
1502 LIR_OpAllocObj(LIR_Opr klass, LIR_Opr result,
1503 LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1504 int hdr_size, int obj_size, bool init_check, CodeStub* stub)
1505 : LIR_Op1(lir_alloc_object, klass, result)
1506 , _tmp1(t1)
1507 , _tmp2(t2)
1508 , _tmp3(t3)
1509 , _tmp4(t4)
1510 , _hdr_size(hdr_size)
1511 , _obj_size(obj_size)
1512 , _init_check(init_check)
1513 , _stub(stub) { }
1514
1515 LIR_Opr klass() const { return in_opr(); }
1516 LIR_Opr obj() const { return result_opr(); }
1517 LIR_Opr tmp1() const { return _tmp1; }
1518 LIR_Opr tmp2() const { return _tmp2; }
1519 LIR_Opr tmp3() const { return _tmp3; }
1520 LIR_Opr tmp4() const { return _tmp4; }
1521 int header_size() const { return _hdr_size; }
1522 int object_size() const { return _obj_size; }
1523 bool init_check() const { return _init_check; }
1524 CodeStub* stub() const { return _stub; }
1525
1526 virtual void emit_code(LIR_Assembler* masm);
1527 virtual LIR_OpAllocObj * as_OpAllocObj () { return this; }
1528 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1529 };
1530
1531
1532 // LIR_OpRoundFP
1533 class LIR_OpRoundFP : public LIR_Op1 {
1534 friend class LIR_OpVisitState;
1535
1536 private:
1537 LIR_Opr _tmp;
1538
1539 public:
1540 LIR_OpRoundFP(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result)
1541 : LIR_Op1(lir_roundfp, reg, result)
1542 , _tmp(stack_loc_temp) {}
1543
1544 LIR_Opr tmp() const { return _tmp; }
1545 virtual LIR_OpRoundFP* as_OpRoundFP() { return this; }
1546 void print_instr(outputStream* out) const PRODUCT_RETURN;
1547 };
1548
1549 // LIR_OpTypeCheck
1550 class LIR_OpTypeCheck: public LIR_Op {
1551 friend class LIR_OpVisitState;
1552
1553 private:
1554 LIR_Opr _object;
1555 LIR_Opr _array;
1556 ciKlass* _klass;
1557 LIR_Opr _tmp1;
1558 LIR_Opr _tmp2;
1559 LIR_Opr _tmp3;
1560 bool _fast_check;
1561 CodeEmitInfo* _info_for_patch;
1562 CodeEmitInfo* _info_for_exception;
1563 CodeStub* _stub;
1564 ciMethod* _profiled_method;
1565 int _profiled_bci;
1566 bool _should_profile;
1567
1568 public:
1569 LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
1570 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1571 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub);
1572 LIR_OpTypeCheck(LIR_Code code, LIR_Opr object, LIR_Opr array,
1573 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception);
1574
1575 LIR_Opr object() const { return _object; }
1576 LIR_Opr array() const { assert(code() == lir_store_check, "not valid"); return _array; }
1577 LIR_Opr tmp1() const { return _tmp1; }
1578 LIR_Opr tmp2() const { return _tmp2; }
1579 LIR_Opr tmp3() const { return _tmp3; }
1580 ciKlass* klass() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _klass; }
1581 bool fast_check() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _fast_check; }
1582 CodeEmitInfo* info_for_patch() const { return _info_for_patch; }
1583 CodeEmitInfo* info_for_exception() const { return _info_for_exception; }
1584 CodeStub* stub() const { return _stub; }
1585
1586 // MethodData* profiling
1587 void set_profiled_method(ciMethod *method) { _profiled_method = method; }
1588 void set_profiled_bci(int bci) { _profiled_bci = bci; }
1589 void set_should_profile(bool b) { _should_profile = b; }
1590 ciMethod* profiled_method() const { return _profiled_method; }
1591 int profiled_bci() const { return _profiled_bci; }
1592 bool should_profile() const { return _should_profile; }
1593
1594 virtual void emit_code(LIR_Assembler* masm);
1595 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return this; }
1596 void print_instr(outputStream* out) const PRODUCT_RETURN;
1597 };
1598
1599 // LIR_Op2
1600 class LIR_Op2: public LIR_Op {
1601 friend class LIR_OpVisitState;
1602
1603 int _fpu_stack_size; // for sin/cos implementation on Intel
1604
1605 protected:
1606 LIR_Opr _opr1;
1607 LIR_Opr _opr2;
1608 BasicType _type;
1609 LIR_Opr _tmp1;
1610 LIR_Opr _tmp2;
1611 LIR_Opr _tmp3;
1612 LIR_Opr _tmp4;
1613 LIR_Opr _tmp5;
1614 LIR_Condition _condition;
1615
1616 void verify() const;
1617
1618 public:
1619 LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, CodeEmitInfo* info = NULL)
1620 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1621 , _opr1(opr1)
1622 , _opr2(opr2)
1623 , _type(T_ILLEGAL)
1624 , _condition(condition)
1625 , _fpu_stack_size(0)
1626 , _tmp1(LIR_OprFact::illegalOpr)
1627 , _tmp2(LIR_OprFact::illegalOpr)
1628 , _tmp3(LIR_OprFact::illegalOpr)
1629 , _tmp4(LIR_OprFact::illegalOpr)
1630 , _tmp5(LIR_OprFact::illegalOpr) {
1631 assert(code == lir_cmp || code == lir_assert, "code check");
1632 }
1633
1634 LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, BasicType type)
1635 : LIR_Op(code, result, NULL)
1636 , _opr1(opr1)
1637 , _opr2(opr2)
1638 , _type(type)
1639 , _condition(condition)
1640 , _fpu_stack_size(0)
1641 , _tmp1(LIR_OprFact::illegalOpr)
1642 , _tmp2(LIR_OprFact::illegalOpr)
1643 , _tmp3(LIR_OprFact::illegalOpr)
1644 , _tmp4(LIR_OprFact::illegalOpr)
1645 , _tmp5(LIR_OprFact::illegalOpr) {
1646 assert(code == lir_cmove, "code check");
1647 assert(type != T_ILLEGAL, "cmove should have type");
1648 }
1649
1650 LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result = LIR_OprFact::illegalOpr,
1651 CodeEmitInfo* info = NULL, BasicType type = T_ILLEGAL)
1652 : LIR_Op(code, result, info)
1653 , _opr1(opr1)
1654 , _opr2(opr2)
1655 , _type(type)
1656 , _condition(lir_cond_unknown)
1657 , _fpu_stack_size(0)
1658 , _tmp1(LIR_OprFact::illegalOpr)
1659 , _tmp2(LIR_OprFact::illegalOpr)
1660 , _tmp3(LIR_OprFact::illegalOpr)
1661 , _tmp4(LIR_OprFact::illegalOpr)
1662 , _tmp5(LIR_OprFact::illegalOpr) {
1663 assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check");
1664 }
1665
1666 LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, LIR_Opr tmp1, LIR_Opr tmp2 = LIR_OprFact::illegalOpr,
1667 LIR_Opr tmp3 = LIR_OprFact::illegalOpr, LIR_Opr tmp4 = LIR_OprFact::illegalOpr, LIR_Opr tmp5 = LIR_OprFact::illegalOpr)
1668 : LIR_Op(code, result, NULL)
1669 , _opr1(opr1)
1670 , _opr2(opr2)
1671 , _type(T_ILLEGAL)
1672 , _condition(lir_cond_unknown)
1673 , _fpu_stack_size(0)
1674 , _tmp1(tmp1)
1675 , _tmp2(tmp2)
1676 , _tmp3(tmp3)
1677 , _tmp4(tmp4)
1678 , _tmp5(tmp5) {
1679 assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check");
1680 }
1681
1682 LIR_Opr in_opr1() const { return _opr1; }
1683 LIR_Opr in_opr2() const { return _opr2; }
1684 BasicType type() const { return _type; }
1685 LIR_Opr tmp1_opr() const { return _tmp1; }
1686 LIR_Opr tmp2_opr() const { return _tmp2; }
1687 LIR_Opr tmp3_opr() const { return _tmp3; }
1688 LIR_Opr tmp4_opr() const { return _tmp4; }
1689 LIR_Opr tmp5_opr() const { return _tmp5; }
1690 LIR_Condition condition() const {
1691 assert(code() == lir_cmp || code() == lir_cmove || code() == lir_assert, "only valid for cmp and cmove and assert"); return _condition;
1692 }
1693 void set_condition(LIR_Condition condition) {
1694 assert(code() == lir_cmp || code() == lir_cmove, "only valid for cmp and cmove"); _condition = condition;
1695 }
1696
1697 void set_fpu_stack_size(int size) { _fpu_stack_size = size; }
1698 int fpu_stack_size() const { return _fpu_stack_size; }
1699
1700 void set_in_opr1(LIR_Opr opr) { _opr1 = opr; }
1701 void set_in_opr2(LIR_Opr opr) { _opr2 = opr; }
1702
1703 virtual void emit_code(LIR_Assembler* masm);
1704 virtual LIR_Op2* as_Op2() { return this; }
1705 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1706 };
1707
1708 class LIR_OpAllocArray : public LIR_Op {
1709 friend class LIR_OpVisitState;
1710
1711 private:
1712 LIR_Opr _klass;
1713 LIR_Opr _len;
1714 LIR_Opr _tmp1;
1715 LIR_Opr _tmp2;
1716 LIR_Opr _tmp3;
1717 LIR_Opr _tmp4;
1718 BasicType _type;
1719 CodeStub* _stub;
1720
1721 public:
1722 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)
1723 : LIR_Op(lir_alloc_array, result, NULL)
1724 , _klass(klass)
1725 , _len(len)
1726 , _tmp1(t1)
1727 , _tmp2(t2)
1728 , _tmp3(t3)
1729 , _tmp4(t4)
1730 , _type(type)
1731 , _stub(stub) {}
1732
1733 LIR_Opr klass() const { return _klass; }
1734 LIR_Opr len() const { return _len; }
1735 LIR_Opr obj() const { return result_opr(); }
1736 LIR_Opr tmp1() const { return _tmp1; }
1737 LIR_Opr tmp2() const { return _tmp2; }
1738 LIR_Opr tmp3() const { return _tmp3; }
1739 LIR_Opr tmp4() const { return _tmp4; }
1740 BasicType type() const { return _type; }
1741 CodeStub* stub() const { return _stub; }
1742
1743 virtual void emit_code(LIR_Assembler* masm);
1744 virtual LIR_OpAllocArray * as_OpAllocArray () { return this; }
1745 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1746 };
1747
1748
1749 class LIR_Op3: public LIR_Op {
1750 friend class LIR_OpVisitState;
1751
1752 private:
1753 LIR_Opr _opr1;
1754 LIR_Opr _opr2;
1755 LIR_Opr _opr3;
1756 public:
1757 LIR_Op3(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr opr3, LIR_Opr result, CodeEmitInfo* info = NULL)
1758 : LIR_Op(code, result, info)
1759 , _opr1(opr1)
1760 , _opr2(opr2)
1761 , _opr3(opr3) { assert(is_in_range(code, begin_op3, end_op3), "code check"); }
1762 LIR_Opr in_opr1() const { return _opr1; }
1763 LIR_Opr in_opr2() const { return _opr2; }
1764 LIR_Opr in_opr3() const { return _opr3; }
1765
1766 virtual void emit_code(LIR_Assembler* masm);
1767 virtual LIR_Op3* as_Op3() { return this; }
1768 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1769 };
1770
1771
1772 //--------------------------------
1773 class LabelObj: public CompilationResourceObj {
1774 private:
1775 Label _label;
1776 public:
1777 LabelObj() {}
1778 Label* label() { return &_label; }
1779 };
1780
1781
1782 class LIR_OpLock: public LIR_Op {
1783 friend class LIR_OpVisitState;
1784
1785 private:
1786 LIR_Opr _hdr;
1787 LIR_Opr _obj;
1788 LIR_Opr _lock;
1789 LIR_Opr _scratch;
1790 CodeStub* _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)
1793 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1794 , _hdr(hdr)
1795 , _obj(obj)
1796 , _lock(lock)
1797 , _scratch(scratch)
1798 , _stub(stub) {}
1799
1800 LIR_Opr hdr_opr() const { return _hdr; }
1801 LIR_Opr obj_opr() const { return _obj; }
1802 LIR_Opr lock_opr() const { return _lock; }
1803 LIR_Opr scratch_opr() const { return _scratch; }
1804 CodeStub* stub() const { return _stub; }
1805
1806 virtual void emit_code(LIR_Assembler* masm);
1807 virtual LIR_OpLock* as_OpLock() { return this; }
1808 void print_instr(outputStream* out) const PRODUCT_RETURN;
1809 };
1810
1811
1812 class LIR_OpDelay: public LIR_Op {
1813 friend class LIR_OpVisitState;
1814
1815 private:
1816 LIR_Op* _op;
1817
1818 public:
1819 LIR_OpDelay(LIR_Op* op, CodeEmitInfo* info):
1820 LIR_Op(lir_delay_slot, LIR_OprFact::illegalOpr, info),
1821 _op(op) {
1822 assert(op->code() == lir_nop || LIRFillDelaySlots, "should be filling with nops");
1823 }
1824 virtual void emit_code(LIR_Assembler* masm);
1825 virtual LIR_OpDelay* as_OpDelay() { return this; }
1826 void print_instr(outputStream* out) const PRODUCT_RETURN;
1827 LIR_Op* delay_op() const { return _op; }
1828 CodeEmitInfo* call_info() const { return info(); }
1829 };
1830
1831 #ifndef PRODUCT
1832 // LIR_OpAssert
1833 class LIR_OpAssert : public LIR_Op2 {
1834 friend class LIR_OpVisitState;
1835
1836 private:
1837 const char* _msg;
1838 bool _halt;
1839
1840 public:
1841 LIR_OpAssert(LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, const char* msg, bool halt)
1842 : LIR_Op2(lir_assert, condition, opr1, opr2)
1843 , _halt(halt)
1844 , _msg(msg) {
1845 }
1846
1847 const char* msg() const { return _msg; }
1848 bool halt() const { return _halt; }
1849
1850 virtual void emit_code(LIR_Assembler* masm);
1851 virtual LIR_OpAssert* as_OpAssert() { return this; }
1852 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1853 };
1854 #endif
1855
1856 // LIR_OpCompareAndSwap
1857 class LIR_OpCompareAndSwap : public LIR_Op {
1858 friend class LIR_OpVisitState;
1859
1860 private:
1861 LIR_Opr _addr;
1862 LIR_Opr _cmp_value;
1863 LIR_Opr _new_value;
1864 LIR_Opr _tmp1;
1865 LIR_Opr _tmp2;
1866
1867 public:
1868 LIR_OpCompareAndSwap(LIR_Code code, LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1869 LIR_Opr t1, LIR_Opr t2, LIR_Opr result)
1870 : LIR_Op(code, result, NULL) // no result, no info
1871 , _addr(addr)
1872 , _cmp_value(cmp_value)
1873 , _new_value(new_value)
1874 , _tmp1(t1)
1875 , _tmp2(t2) { }
1876
1877 LIR_Opr addr() const { return _addr; }
1878 LIR_Opr cmp_value() const { return _cmp_value; }
1879 LIR_Opr new_value() const { return _new_value; }
1880 LIR_Opr tmp1() const { return _tmp1; }
1881 LIR_Opr tmp2() const { return _tmp2; }
1882
1883 virtual void emit_code(LIR_Assembler* masm);
1884 virtual LIR_OpCompareAndSwap * as_OpCompareAndSwap () { return this; }
1885 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1886 };
1887
1888 // LIR_OpProfileCall
1889 class LIR_OpProfileCall : public LIR_Op {
1890 friend class LIR_OpVisitState;
1891
1892 private:
1893 ciMethod* _profiled_method;
1894 int _profiled_bci;
1895 ciMethod* _profiled_callee;
1896 LIR_Opr _mdo;
1897 LIR_Opr _recv;
1898 LIR_Opr _tmp1;
1899 ciKlass* _known_holder;
1900
1901 public:
1902 // Destroys recv
1903 LIR_OpProfileCall(LIR_Code code, ciMethod* profiled_method, int profiled_bci, ciMethod* profiled_callee, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* known_holder)
1904 : LIR_Op(code, LIR_OprFact::illegalOpr, NULL) // no result, no info
1905 , _profiled_method(profiled_method)
1906 , _profiled_bci(profiled_bci)
1907 , _profiled_callee(profiled_callee)
1908 , _mdo(mdo)
1909 , _recv(recv)
1910 , _tmp1(t1)
1911 , _known_holder(known_holder) { }
1912
1913 ciMethod* profiled_method() const { return _profiled_method; }
1914 int profiled_bci() const { return _profiled_bci; }
1915 ciMethod* profiled_callee() const { return _profiled_callee; }
1916 LIR_Opr mdo() const { return _mdo; }
1917 LIR_Opr recv() const { return _recv; }
1918 LIR_Opr tmp1() const { return _tmp1; }
1919 ciKlass* known_holder() const { return _known_holder; }
1920
1921 virtual void emit_code(LIR_Assembler* masm);
1922 virtual LIR_OpProfileCall* as_OpProfileCall() { return this; }
1923 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1924 };
1925
1926 class LIR_InsertionBuffer;
1927
1928 //--------------------------------LIR_List---------------------------------------------------
1929 // Maintains a list of LIR instructions (one instance of LIR_List per basic block)
1930 // The LIR instructions are appended by the LIR_List class itself;
1931 //
1932 // Notes:
1933 // - all offsets are(should be) in bytes
1934 // - local positions are specified with an offset, with offset 0 being local 0
1935
1936 class LIR_List: public CompilationResourceObj {
1937 private:
1938 LIR_OpList _operations;
1939
1940 Compilation* _compilation;
1941 #ifndef PRODUCT
1942 BlockBegin* _block;
1943 #endif
1944 #ifdef ASSERT
1945 const char * _file;
1946 int _line;
1947 #endif
1948
1949 void append(LIR_Op* op) {
1950 if (op->source() == NULL)
1951 op->set_source(_compilation->current_instruction());
1952 #ifndef PRODUCT
1953 if (PrintIRWithLIR) {
1954 _compilation->maybe_print_current_instruction();
1955 op->print(); tty->cr();
1956 }
1957 #endif // PRODUCT
1958
1959 _operations.append(op);
1960
1961 #ifdef ASSERT
1962 op->verify();
1963 op->set_file_and_line(_file, _line);
1964 _file = NULL;
1965 _line = 0;
1966 #endif
1967 }
1968
1969 public:
1970 LIR_List(Compilation* compilation, BlockBegin* block = NULL);
1971
1972 #ifdef ASSERT
1973 void set_file_and_line(const char * file, int line);
1974 #endif
1975
1976 //---------- accessors ---------------
1977 LIR_OpList* instructions_list() { return &_operations; }
1978 int length() const { return _operations.length(); }
1979 LIR_Op* at(int i) const { return _operations.at(i); }
1980
1981 NOT_PRODUCT(BlockBegin* block() const { return _block; });
1982
1983 // insert LIR_Ops in buffer to right places in LIR_List
1984 void append(LIR_InsertionBuffer* buffer);
1985
1986 //---------- mutators ---------------
1987 void insert_before(int i, LIR_List* op_list) { _operations.insert_before(i, op_list->instructions_list()); }
1988 void insert_before(int i, LIR_Op* op) { _operations.insert_before(i, op); }
1989 void remove_at(int i) { _operations.remove_at(i); }
1990
1991 //---------- printing -------------
1992 void print_instructions() PRODUCT_RETURN;
1993
1994
1995 //---------- instructions -------------
1996 void call_opt_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
1997 address dest, LIR_OprList* arguments,
1998 CodeEmitInfo* info) {
1999 append(new LIR_OpJavaCall(lir_optvirtual_call, method, receiver, result, dest, arguments, info));
2000 }
2001 void call_static(ciMethod* method, LIR_Opr result,
2002 address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
2003 append(new LIR_OpJavaCall(lir_static_call, method, LIR_OprFact::illegalOpr, result, dest, arguments, info));
2004 }
2005 void call_icvirtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2006 address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
2007 append(new LIR_OpJavaCall(lir_icvirtual_call, method, receiver, result, dest, arguments, info));
2008 }
2009 void call_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2010 intptr_t vtable_offset, LIR_OprList* arguments, CodeEmitInfo* info) {
2011 append(new LIR_OpJavaCall(lir_virtual_call, method, receiver, result, vtable_offset, arguments, info));
2012 }
2013 void call_dynamic(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2014 address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
2015 append(new LIR_OpJavaCall(lir_dynamic_call, method, receiver, result, dest, arguments, info));
2016 }
2017
2018 void get_thread(LIR_Opr result) { append(new LIR_Op0(lir_get_thread, result)); }
2019 void word_align() { append(new LIR_Op0(lir_word_align)); }
2020 void membar() { append(new LIR_Op0(lir_membar)); }
2021 void membar_acquire() { append(new LIR_Op0(lir_membar_acquire)); }
2022 void membar_release() { append(new LIR_Op0(lir_membar_release)); }
2023 void membar_loadload() { append(new LIR_Op0(lir_membar_loadload)); }
2024 void membar_storestore() { append(new LIR_Op0(lir_membar_storestore)); }
2025 void membar_loadstore() { append(new LIR_Op0(lir_membar_loadstore)); }
2026 void membar_storeload() { append(new LIR_Op0(lir_membar_storeload)); }
2027
2028 void nop() { append(new LIR_Op0(lir_nop)); }
2029 void build_frame() { append(new LIR_Op0(lir_build_frame)); }
2030
2031 void std_entry(LIR_Opr receiver) { append(new LIR_Op0(lir_std_entry, receiver)); }
2032 void osr_entry(LIR_Opr osrPointer) { append(new LIR_Op0(lir_osr_entry, osrPointer)); }
2033
2034 void branch_destination(Label* lbl) { append(new LIR_OpLabel(lbl)); }
2035
2036 void negate(LIR_Opr from, LIR_Opr to) { append(new LIR_Op1(lir_neg, from, to)); }
2037 void leal(LIR_Opr from, LIR_Opr result_reg) { append(new LIR_Op1(lir_leal, from, result_reg)); }
2038
2039 // result is a stack location for old backend and vreg for UseLinearScan
2040 // stack_loc_temp is an illegal register for old backend
2041 void roundfp(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result) { append(new LIR_OpRoundFP(reg, stack_loc_temp, result)); }
2042 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)); }
2043 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)); }
2044 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)); }
2045 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)); }
2046 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)); }
2047 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)); }
2048 void move_wide(LIR_Address* src, LIR_Opr dst, CodeEmitInfo* info = NULL) {
2049 if (UseCompressedOops) {
2050 append(new LIR_Op1(lir_move, LIR_OprFact::address(src), dst, src->type(), lir_patch_none, info, lir_move_wide));
2051 } else {
2052 move(src, dst, info);
2053 }
2054 }
2055 void move_wide(LIR_Opr src, LIR_Address* dst, CodeEmitInfo* info = NULL) {
2056 if (UseCompressedOops) {
2057 append(new LIR_Op1(lir_move, src, LIR_OprFact::address(dst), dst->type(), lir_patch_none, info, lir_move_wide));
2058 } else {
2059 move(src, dst, info);
2060 }
2061 }
2062 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)); }
2063
2064 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)); }
2065 void oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info);
2066
2067 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)); }
2068 void klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info);
2069
2070 void return_op(LIR_Opr result) { append(new LIR_Op1(lir_return, result)); }
2071
2072 void safepoint(LIR_Opr tmp, CodeEmitInfo* info) { append(new LIR_Op1(lir_safepoint, tmp, info)); }
2073
2074 #ifdef PPC
2075 void convert(Bytecodes::Code code, LIR_Opr left, LIR_Opr dst, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_OpConvert(code, left, dst, NULL, tmp1, tmp2)); }
2076 #endif
2077 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)); }
2078
2079 void logical_and (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_and, left, right, dst)); }
2080 void logical_or (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_or, left, right, dst)); }
2081 void logical_xor (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_xor, left, right, dst)); }
2082
2083 void pack64(LIR_Opr src, LIR_Opr dst) { append(new LIR_Op1(lir_pack64, src, dst, T_LONG, lir_patch_none, NULL)); }
2084 void unpack64(LIR_Opr src, LIR_Opr dst) { append(new LIR_Op1(lir_unpack64, src, dst, T_LONG, lir_patch_none, NULL)); }
2085
2086 void null_check(LIR_Opr opr, CodeEmitInfo* info) { append(new LIR_Op1(lir_null_check, opr, info)); }
2087 void throw_exception(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) {
2088 append(new LIR_Op2(lir_throw, exceptionPC, exceptionOop, LIR_OprFact::illegalOpr, info));
2089 }
2090 void unwind_exception(LIR_Opr exceptionOop) {
2091 append(new LIR_Op1(lir_unwind, exceptionOop));
2092 }
2093
2094 void compare_to (LIR_Opr left, LIR_Opr right, LIR_Opr dst) {
2095 append(new LIR_Op2(lir_compare_to, left, right, dst));
2096 }
2097
2098 void push(LIR_Opr opr) { append(new LIR_Op1(lir_push, opr)); }
2099 void pop(LIR_Opr reg) { append(new LIR_Op1(lir_pop, reg)); }
2100
2101 void cmp(LIR_Condition condition, LIR_Opr left, LIR_Opr right, CodeEmitInfo* info = NULL) {
2102 append(new LIR_Op2(lir_cmp, condition, left, right, info));
2103 }
2104 void cmp(LIR_Condition condition, LIR_Opr left, int right, CodeEmitInfo* info = NULL) {
2105 cmp(condition, left, LIR_OprFact::intConst(right), info);
2106 }
2107
2108 void cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info);
2109 void cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info);
2110
2111 void cmove(LIR_Condition condition, LIR_Opr src1, LIR_Opr src2, LIR_Opr dst, BasicType type) {
2112 append(new LIR_Op2(lir_cmove, condition, src1, src2, dst, type));
2113 }
2114
2115 void cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
2116 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr);
2117 void cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
2118 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr);
2119 void cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
2120 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr);
2121
2122 void abs (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_abs , from, tmp, to)); }
2123 void sqrt(LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_sqrt, from, tmp, to)); }
2124 void log (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_log, from, LIR_OprFact::illegalOpr, to, tmp)); }
2125 void log10 (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_log10, from, LIR_OprFact::illegalOpr, to, tmp)); }
2126 void sin (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_Op2(lir_sin , from, tmp1, to, tmp2)); }
2127 void cos (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_Op2(lir_cos , from, tmp1, to, tmp2)); }
2128 void tan (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_Op2(lir_tan , from, tmp1, to, tmp2)); }
2129 void exp (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, LIR_Opr tmp4, LIR_Opr tmp5) { append(new LIR_Op2(lir_exp , from, tmp1, to, tmp2, tmp3, tmp4, tmp5)); }
2130 void pow (LIR_Opr arg1, LIR_Opr arg2, LIR_Opr res, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, LIR_Opr tmp4, LIR_Opr tmp5) { append(new LIR_Op2(lir_pow, arg1, arg2, res, tmp1, tmp2, tmp3, tmp4, tmp5)); }
2131
2132 void add (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_add, left, right, res)); }
2133 void sub (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_sub, left, right, res, info)); }
2134 void mul (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_mul, left, right, res)); }
2135 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)); }
2136 void div (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_div, left, right, res, info)); }
2137 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)); }
2138 void rem (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_rem, left, right, res, info)); }
2139
2140 void volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2141 void volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code);
2142
2143 void load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none);
2144
2145 void prefetch(LIR_Address* addr, bool is_store);
2146
2147 void store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2148 void store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2149 void store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none);
2150 void volatile_store_mem_reg(LIR_Opr src, LIR_Address* address, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2151 void volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code);
2152
2153 void idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2154 void idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2155 void irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2156 void irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2157
2158 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);
2159 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);
2160
2161 // jump is an unconditional branch
2162 void jump(BlockBegin* block) {
2163 append(new LIR_OpBranch(lir_cond_always, T_ILLEGAL, block));
2164 }
2165 void jump(CodeStub* stub) {
2166 append(new LIR_OpBranch(lir_cond_always, T_ILLEGAL, stub));
2167 }
2168 void branch(LIR_Condition cond, BasicType type, Label* lbl) { append(new LIR_OpBranch(cond, type, lbl)); }
2169 void branch(LIR_Condition cond, BasicType type, BlockBegin* block) {
2170 assert(type != T_FLOAT && type != T_DOUBLE, "no fp comparisons");
2171 append(new LIR_OpBranch(cond, type, block));
2172 }
2173 void branch(LIR_Condition cond, BasicType type, CodeStub* stub) {
2174 assert(type != T_FLOAT && type != T_DOUBLE, "no fp comparisons");
2175 append(new LIR_OpBranch(cond, type, stub));
2176 }
2177 void branch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* unordered) {
2178 assert(type == T_FLOAT || type == T_DOUBLE, "fp comparisons only");
2179 append(new LIR_OpBranch(cond, type, block, unordered));
2180 }
2181
2182 void shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
2183 void shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
2184 void unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
2185
2186 void shift_left(LIR_Opr value, int count, LIR_Opr dst) { shift_left(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2187 void shift_right(LIR_Opr value, int count, LIR_Opr dst) { shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2188 void unsigned_shift_right(LIR_Opr value, int count, LIR_Opr dst) { unsigned_shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2189
2190 void lcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_cmp_l2i, left, right, dst)); }
2191 void fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less);
2192
2193 void call_runtime_leaf(address routine, LIR_Opr tmp, LIR_Opr result, LIR_OprList* arguments) {
2194 append(new LIR_OpRTCall(routine, tmp, result, arguments));
2195 }
2196
2197 void call_runtime(address routine, LIR_Opr tmp, LIR_Opr result,
2198 LIR_OprList* arguments, CodeEmitInfo* info) {
2199 append(new LIR_OpRTCall(routine, tmp, result, arguments, info));
2200 }
2201
2202 void load_stack_address_monitor(int monitor_ix, LIR_Opr dst) { append(new LIR_Op1(lir_monaddr, LIR_OprFact::intConst(monitor_ix), dst)); }
2203 void unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub);
2204 void lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info);
2205
2206 void set_24bit_fpu() { append(new LIR_Op0(lir_24bit_FPU )); }
2207 void restore_fpu() { append(new LIR_Op0(lir_reset_FPU )); }
2208 void breakpoint() { append(new LIR_Op0(lir_breakpoint)); }
2209
2210 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)); }
2211
2212 void fpop_raw() { append(new LIR_Op0(lir_fpop_raw)); }
2213
2214 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);
2215 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);
2216
2217 void checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
2218 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
2219 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
2220 ciMethod* profiled_method, int profiled_bci);
2221 // MethodData* profiling
2222 void profile_call(ciMethod* method, int bci, ciMethod* callee, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* cha_klass) {
2223 append(new LIR_OpProfileCall(lir_profile_call, method, bci, callee, mdo, recv, t1, cha_klass));
2224 }
2225
2226 void xadd(LIR_Opr src, LIR_Opr add, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_xadd, src, add, res, tmp)); }
2227 void xchg(LIR_Opr src, LIR_Opr set, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_xchg, src, set, res, tmp)); }
2228 #ifndef PRODUCT
2229 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)); }
2230 #endif
2231 };
2232
2233 void print_LIR(BlockList* blocks);
2234
2235 class LIR_InsertionBuffer : public CompilationResourceObj {
2236 private:
2237 LIR_List* _lir; // the lir list where ops of this buffer should be inserted later (NULL when uninitialized)
2238
2239 // list of insertion points. index and count are stored alternately:
2240 // _index_and_count[i * 2]: the index into lir list where "count" ops should be inserted
2241 // _index_and_count[i * 2 + 1]: the number of ops to be inserted at index
2242 intStack _index_and_count;
2243
2244 // the LIR_Ops to be inserted
2245 LIR_OpList _ops;
2246
2247 void append_new(int index, int count) { _index_and_count.append(index); _index_and_count.append(count); }
2248 void set_index_at(int i, int value) { _index_and_count.at_put((i << 1), value); }
2249 void set_count_at(int i, int value) { _index_and_count.at_put((i << 1) + 1, value); }
2250
2251 #ifdef ASSERT
2252 void verify();
2253 #endif
2254 public:
2255 LIR_InsertionBuffer() : _lir(NULL), _index_and_count(8), _ops(8) { }
2256
2257 // must be called before using the insertion buffer
2258 void init(LIR_List* lir) { assert(!initialized(), "already initialized"); _lir = lir; _index_and_count.clear(); _ops.clear(); }
2259 bool initialized() const { return _lir != NULL; }
2260 // called automatically when the buffer is appended to the LIR_List
2261 void finish() { _lir = NULL; }
2262
2263 // accessors
2264 LIR_List* lir_list() const { return _lir; }
2265 int number_of_insertion_points() const { return _index_and_count.length() >> 1; }
2266 int index_at(int i) const { return _index_and_count.at((i << 1)); }
2267 int count_at(int i) const { return _index_and_count.at((i << 1) + 1); }
2268
2269 int number_of_ops() const { return _ops.length(); }
2270 LIR_Op* op_at(int i) const { return _ops.at(i); }
2271
2272 // append an instruction to the buffer
2273 void append(int index, LIR_Op* op);
2274
2275 // instruction
2276 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)); }
2277 };
2278
2279
2280 //
2281 // LIR_OpVisitState is used for manipulating LIR_Ops in an abstract way.
2282 // Calling a LIR_Op's visit function with a LIR_OpVisitState causes
2283 // information about the input, output and temporaries used by the
2284 // op to be recorded. It also records whether the op has call semantics
2285 // and also records all the CodeEmitInfos used by this op.
2286 //
2287
2288
2289 class LIR_OpVisitState: public StackObj {
2290 public:
2291 typedef enum { inputMode, firstMode = inputMode, tempMode, outputMode, numModes, invalidMode = -1 } OprMode;
2292
2293 enum {
2294 maxNumberOfOperands = 20,
2295 maxNumberOfInfos = 4
2296 };
2297
2298 private:
2299 LIR_Op* _op;
2300
2301 // optimization: the operands and infos are not stored in a variable-length
2302 // list, but in a fixed-size array to save time of size checks and resizing
2303 int _oprs_len[numModes];
2304 LIR_Opr* _oprs_new[numModes][maxNumberOfOperands];
2305 int _info_len;
2306 CodeEmitInfo* _info_new[maxNumberOfInfos];
2307
2308 bool _has_call;
2309 bool _has_slow_case;
2310
2311
2312 // only include register operands
2313 // addresses are decomposed to the base and index registers
2314 // constants and stack operands are ignored
2315 void append(LIR_Opr& opr, OprMode mode) {
2316 assert(opr->is_valid(), "should not call this otherwise");
2317 assert(mode >= 0 && mode < numModes, "bad mode");
2318
2319 if (opr->is_register()) {
2320 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
2321 _oprs_new[mode][_oprs_len[mode]++] = &opr;
2322
2323 } else if (opr->is_pointer()) {
2324 LIR_Address* address = opr->as_address_ptr();
2325 if (address != NULL) {
2326 // special handling for addresses: add base and index register of the address
2327 // both are always input operands or temp if we want to extend
2328 // their liveness!
2329 if (mode == outputMode) {
2330 mode = inputMode;
2331 }
2332 assert (mode == inputMode || mode == tempMode, "input or temp only for addresses");
2333 if (address->_base->is_valid()) {
2334 assert(address->_base->is_register(), "must be");
2335 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
2336 _oprs_new[mode][_oprs_len[mode]++] = &address->_base;
2337 }
2338 if (address->_index->is_valid()) {
2339 assert(address->_index->is_register(), "must be");
2340 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
2341 _oprs_new[mode][_oprs_len[mode]++] = &address->_index;
2342 }
2343
2344 } else {
2345 assert(opr->is_constant(), "constant operands are not processed");
2346 }
2347 } else {
2348 assert(opr->is_stack(), "stack operands are not processed");
2349 }
2350 }
2351
2352 void append(CodeEmitInfo* info) {
2353 assert(info != NULL, "should not call this otherwise");
2354 assert(_info_len < maxNumberOfInfos, "array overflow");
2355 _info_new[_info_len++] = info;
2356 }
2357
2358 public:
2359 LIR_OpVisitState() { reset(); }
2360
2361 LIR_Op* op() const { return _op; }
2362 void set_op(LIR_Op* op) { reset(); _op = op; }
2363
2364 bool has_call() const { return _has_call; }
2365 bool has_slow_case() const { return _has_slow_case; }
2366
2367 void reset() {
2368 _op = NULL;
2369 _has_call = false;
2370 _has_slow_case = false;
2371
2372 _oprs_len[inputMode] = 0;
2373 _oprs_len[tempMode] = 0;
2374 _oprs_len[outputMode] = 0;
2375 _info_len = 0;
2376 }
2377
2378
2379 int opr_count(OprMode mode) const {
2380 assert(mode >= 0 && mode < numModes, "bad mode");
2381 return _oprs_len[mode];
2382 }
2383
2384 LIR_Opr opr_at(OprMode mode, int index) const {
2385 assert(mode >= 0 && mode < numModes, "bad mode");
2386 assert(index >= 0 && index < _oprs_len[mode], "index out of bound");
2387 return *_oprs_new[mode][index];
2388 }
2389
2390 void set_opr_at(OprMode mode, int index, LIR_Opr opr) const {
2391 assert(mode >= 0 && mode < numModes, "bad mode");
2392 assert(index >= 0 && index < _oprs_len[mode], "index out of bound");
2393 *_oprs_new[mode][index] = opr;
2394 }
2395
2396 int info_count() const {
2397 return _info_len;
2398 }
2399
2400 CodeEmitInfo* info_at(int index) const {
2401 assert(index < _info_len, "index out of bounds");
2402 return _info_new[index];
2403 }
2404
2405 XHandlers* all_xhandler();
2406
2407 // collects all register operands of the instruction
2408 void visit(LIR_Op* op);
2409
2410 #if ASSERT
2411 // check that an operation has no operands
2412 bool no_operands(LIR_Op* op);
2413 #endif
2414
2415 // LIR_Op visitor functions use these to fill in the state
2416 void do_input(LIR_Opr& opr) { append(opr, LIR_OpVisitState::inputMode); }
2417 void do_output(LIR_Opr& opr) { append(opr, LIR_OpVisitState::outputMode); }
2418 void do_temp(LIR_Opr& opr) { append(opr, LIR_OpVisitState::tempMode); }
2419 void do_info(CodeEmitInfo* info) { append(info); }
2420
2421 void do_stub(CodeStub* stub);
2422 void do_call() { _has_call = true; }
2423 void do_slow_case() { _has_slow_case = true; }
2424 void do_slow_case(CodeEmitInfo* info) {
2425 _has_slow_case = true;
2426 append(info);
2427 }
2428 };
2429
2430
2431 inline LIR_Opr LIR_OprDesc::illegalOpr() { return LIR_OprFact::illegalOpr; };
2432
2433 #endif // SHARE_VM_C1_C1_LIR_HPP