1 /*
2 * Copyright (c) 2000, 2021, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_C1_C1_LIR_HPP
26 #define SHARE_C1_C1_LIR_HPP
27
28 #include "c1/c1_Defs.hpp"
29 #include "c1/c1_ValueType.hpp"
30 #include "oops/method.hpp"
31 #include "utilities/globalDefinitions.hpp"
32
33 class BlockBegin;
34 class BlockList;
35 class LIR_Assembler;
36 class CodeEmitInfo;
37 class CodeStub;
38 class CodeStubList;
39 class C1SafepointPollStub;
40 class ArrayCopyStub;
41 class LIR_Op;
42 class ciType;
43 class ValueType;
44 class LIR_OpVisitState;
45 class FpuStackSim;
46
47 //---------------------------------------------------------------------
48 // LIR Operands
49 // LIR_OprDesc
50 // LIR_OprPtr
51 // LIR_Const
52 // LIR_Address
53 //---------------------------------------------------------------------
54 class LIR_OprDesc;
55 class LIR_OprPtr;
56 class LIR_Const;
57 class LIR_Address;
58 class LIR_OprVisitor;
59
60
61 typedef LIR_OprDesc* LIR_Opr;
62 typedef int RegNr;
63
64 typedef GrowableArray<LIR_Opr> LIR_OprList;
65 typedef GrowableArray<LIR_Op*> LIR_OpArray;
66 typedef GrowableArray<LIR_Op*> LIR_OpList;
67
68 // define LIR_OprPtr early so LIR_OprDesc can refer to it
69 class LIR_OprPtr: public CompilationResourceObj {
70 public:
71 bool is_oop_pointer() const { return (type() == T_OBJECT); }
72 bool is_float_kind() const { BasicType t = type(); return (t == T_FLOAT) || (t == T_DOUBLE); }
73
74 virtual LIR_Const* as_constant() { return NULL; }
75 virtual LIR_Address* as_address() { return NULL; }
76 virtual BasicType type() const = 0;
77 virtual void print_value_on(outputStream* out) const = 0;
78 };
79
80
81
82 // LIR constants
83 class LIR_Const: public LIR_OprPtr {
84 private:
85 JavaValue _value;
86
87 void type_check(BasicType t) const { assert(type() == t, "type check"); }
88 void type_check(BasicType t1, BasicType t2) const { assert(type() == t1 || type() == t2, "type check"); }
89 void type_check(BasicType t1, BasicType t2, BasicType t3) const { assert(type() == t1 || type() == t2 || type() == t3, "type check"); }
90
91 public:
92 LIR_Const(jint i, bool is_address=false) { _value.set_type(is_address?T_ADDRESS:T_INT); _value.set_jint(i); }
93 LIR_Const(jlong l) { _value.set_type(T_LONG); _value.set_jlong(l); }
94 LIR_Const(jfloat f) { _value.set_type(T_FLOAT); _value.set_jfloat(f); }
95 LIR_Const(jdouble d) { _value.set_type(T_DOUBLE); _value.set_jdouble(d); }
96 LIR_Const(jobject o) { _value.set_type(T_OBJECT); _value.set_jobject(o); }
97 LIR_Const(void* p) {
98 #ifdef _LP64
99 assert(sizeof(jlong) >= sizeof(p), "too small");;
100 _value.set_type(T_LONG); _value.set_jlong((jlong)p);
101 #else
102 assert(sizeof(jint) >= sizeof(p), "too small");;
103 _value.set_type(T_INT); _value.set_jint((jint)p);
104 #endif
105 }
106 LIR_Const(Metadata* m) {
107 _value.set_type(T_METADATA);
108 #ifdef _LP64
109 _value.set_jlong((jlong)m);
110 #else
111 _value.set_jint((jint)m);
112 #endif // _LP64
113 }
114
115 virtual BasicType type() const { return _value.get_type(); }
116 virtual LIR_Const* as_constant() { return this; }
117
118 jint as_jint() const { type_check(T_INT, T_ADDRESS); return _value.get_jint(); }
119 jlong as_jlong() const { type_check(T_LONG ); return _value.get_jlong(); }
120 jfloat as_jfloat() const { type_check(T_FLOAT ); return _value.get_jfloat(); }
121 jdouble as_jdouble() const { type_check(T_DOUBLE); return _value.get_jdouble(); }
122 jobject as_jobject() const { type_check(T_OBJECT); return _value.get_jobject(); }
123 jint as_jint_lo() const { type_check(T_LONG ); return low(_value.get_jlong()); }
124 jint as_jint_hi() const { type_check(T_LONG ); return high(_value.get_jlong()); }
125
126 #ifdef _LP64
127 address as_pointer() const { type_check(T_LONG ); return (address)_value.get_jlong(); }
128 Metadata* as_metadata() const { type_check(T_METADATA); return (Metadata*)_value.get_jlong(); }
129 #else
130 address as_pointer() const { type_check(T_INT ); return (address)_value.get_jint(); }
131 Metadata* as_metadata() const { type_check(T_METADATA); return (Metadata*)_value.get_jint(); }
132 #endif
133
134
135 jint as_jint_bits() const { type_check(T_FLOAT, T_INT, T_ADDRESS); return _value.get_jint(); }
136 jint as_jint_lo_bits() const {
137 if (type() == T_DOUBLE) {
138 return low(jlong_cast(_value.get_jdouble()));
139 } else {
140 return as_jint_lo();
141 }
142 }
143 jint as_jint_hi_bits() const {
144 if (type() == T_DOUBLE) {
145 return high(jlong_cast(_value.get_jdouble()));
146 } else {
147 return as_jint_hi();
148 }
149 }
150 jlong as_jlong_bits() const {
151 if (type() == T_DOUBLE) {
152 return jlong_cast(_value.get_jdouble());
153 } else {
154 return as_jlong();
155 }
156 }
157
158 virtual void print_value_on(outputStream* out) const PRODUCT_RETURN;
159
160
161 bool is_zero_float() {
162 jfloat f = as_jfloat();
163 jfloat ok = 0.0f;
164 return jint_cast(f) == jint_cast(ok);
165 }
166
167 bool is_one_float() {
168 jfloat f = as_jfloat();
169 return !g_isnan(f) && g_isfinite(f) && f == 1.0;
170 }
171
172 bool is_zero_double() {
173 jdouble d = as_jdouble();
174 jdouble ok = 0.0;
175 return jlong_cast(d) == jlong_cast(ok);
176 }
177
178 bool is_one_double() {
179 jdouble d = as_jdouble();
180 return !g_isnan(d) && g_isfinite(d) && d == 1.0;
181 }
182 };
183
184
185 //---------------------LIR Operand descriptor------------------------------------
186 //
187 // The class LIR_OprDesc represents a LIR instruction operand;
188 // it can be a register (ALU/FPU), stack location or a constant;
189 // Constants and addresses are represented as resource area allocated
190 // structures (see above).
191 // Registers and stack locations are inlined into the this pointer
192 // (see value function).
193
194 class LIR_OprDesc: public CompilationResourceObj {
195 public:
196 // value structure:
197 // data opr-type opr-kind
198 // +--------------+-------+-------+
199 // [max...........|7 6 5 4|3 2 1 0]
200 // ^
201 // is_pointer bit
202 //
203 // lowest bit cleared, means it is a structure pointer
204 // we need 4 bits to represent types
205
206 private:
207 friend class LIR_OprFact;
208
209 // Conversion
210 intptr_t value() const { return (intptr_t) this; }
211
212 bool check_value_mask(intptr_t mask, intptr_t masked_value) const {
213 return (value() & mask) == masked_value;
214 }
215
216 enum OprKind {
217 pointer_value = 0
218 , stack_value = 1
219 , cpu_register = 3
220 , fpu_register = 5
221 , illegal_value = 7
222 };
223
224 enum OprBits {
225 pointer_bits = 1
226 , kind_bits = 3
227 , type_bits = 4
228 , size_bits = 2
229 , destroys_bits = 1
230 , virtual_bits = 1
231 , is_xmm_bits = 1
232 , last_use_bits = 1
233 , is_fpu_stack_offset_bits = 1 // used in assertion checking on x86 for FPU stack slot allocation
234 , non_data_bits = kind_bits + type_bits + size_bits + destroys_bits + virtual_bits
235 + is_xmm_bits + last_use_bits + is_fpu_stack_offset_bits
236 , data_bits = BitsPerInt - non_data_bits
237 , reg_bits = data_bits / 2 // for two registers in one value encoding
238 };
239
240 enum OprShift : uintptr_t {
241 kind_shift = 0
242 , type_shift = kind_shift + kind_bits
243 , size_shift = type_shift + type_bits
244 , destroys_shift = size_shift + size_bits
245 , last_use_shift = destroys_shift + destroys_bits
246 , is_fpu_stack_offset_shift = last_use_shift + last_use_bits
247 , virtual_shift = is_fpu_stack_offset_shift + is_fpu_stack_offset_bits
248 , is_xmm_shift = virtual_shift + virtual_bits
249 , data_shift = is_xmm_shift + is_xmm_bits
250 , reg1_shift = data_shift
251 , reg2_shift = data_shift + reg_bits
252
253 };
254
255 enum OprSize {
256 single_size = 0 << size_shift
257 , double_size = 1 << size_shift
258 };
259
260 enum OprMask {
261 kind_mask = right_n_bits(kind_bits)
262 , type_mask = right_n_bits(type_bits) << type_shift
263 , size_mask = right_n_bits(size_bits) << size_shift
264 , last_use_mask = right_n_bits(last_use_bits) << last_use_shift
265 , is_fpu_stack_offset_mask = right_n_bits(is_fpu_stack_offset_bits) << is_fpu_stack_offset_shift
266 , virtual_mask = right_n_bits(virtual_bits) << virtual_shift
267 , is_xmm_mask = right_n_bits(is_xmm_bits) << is_xmm_shift
268 , pointer_mask = right_n_bits(pointer_bits)
269 , lower_reg_mask = right_n_bits(reg_bits)
270 , no_type_mask = (int)(~(type_mask | last_use_mask | is_fpu_stack_offset_mask))
271 };
272
273 uint32_t data() const { return (uint32_t)value() >> data_shift; }
274 int lo_reg_half() const { return data() & lower_reg_mask; }
275 int hi_reg_half() const { return (data() >> reg_bits) & lower_reg_mask; }
276 OprKind kind_field() const { return (OprKind)(value() & kind_mask); }
277 OprSize size_field() const { return (OprSize)(value() & size_mask); }
278
279 static char type_char(BasicType t);
280
281 public:
282 enum {
283 vreg_base = ConcreteRegisterImpl::number_of_registers,
284 data_max = (1 << data_bits) - 1, // max unsigned value for data bit field
285 vreg_limit = 10000, // choose a reasonable limit,
286 vreg_max = MIN2(vreg_limit, data_max) // and make sure if fits in the bit field
287 };
288
289 static inline LIR_Opr illegalOpr();
290
291 enum OprType {
292 unknown_type = 0 << type_shift // means: not set (catch uninitialized types)
293 , int_type = 1 << type_shift
294 , long_type = 2 << type_shift
295 , object_type = 3 << type_shift
296 , address_type = 4 << type_shift
297 , float_type = 5 << type_shift
298 , double_type = 6 << type_shift
299 , metadata_type = 7 << type_shift
300 };
301 friend OprType as_OprType(BasicType t);
302 friend BasicType as_BasicType(OprType t);
303
304 OprType type_field_valid() const { assert(is_register() || is_stack(), "should not be called otherwise"); return (OprType)(value() & type_mask); }
305 OprType type_field() const { return is_illegal() ? unknown_type : (OprType)(value() & type_mask); }
306
307 static OprSize size_for(BasicType t) {
308 switch (t) {
309 case T_LONG:
310 case T_DOUBLE:
311 return double_size;
312 break;
313
314 case T_FLOAT:
315 case T_BOOLEAN:
316 case T_CHAR:
317 case T_BYTE:
318 case T_SHORT:
319 case T_INT:
320 case T_ADDRESS:
321 case T_OBJECT:
322 case T_ARRAY:
323 case T_METADATA:
324 return single_size;
325 break;
326
327 default:
328 ShouldNotReachHere();
329 return single_size;
330 }
331 }
332
333
334 void validate_type() const PRODUCT_RETURN;
335
336 BasicType type() const {
337 if (is_pointer()) {
338 return pointer()->type();
339 }
340 return as_BasicType(type_field());
341 }
342
343
344 ValueType* value_type() const { return as_ValueType(type()); }
345
346 char type_char() const { return type_char((is_pointer()) ? pointer()->type() : type()); }
347
348 bool is_equal(LIR_Opr opr) const { return this == opr; }
349 // checks whether types are same
350 bool is_same_type(LIR_Opr opr) const {
351 assert(type_field() != unknown_type &&
352 opr->type_field() != unknown_type, "shouldn't see unknown_type");
353 return type_field() == opr->type_field();
354 }
355 bool is_same_register(LIR_Opr opr) {
356 return (is_register() && opr->is_register() &&
357 kind_field() == opr->kind_field() &&
358 (value() & no_type_mask) == (opr->value() & no_type_mask));
359 }
360
361 bool is_pointer() const { return check_value_mask(pointer_mask, pointer_value); }
362 bool is_illegal() const { return kind_field() == illegal_value; }
363 bool is_valid() const { return kind_field() != illegal_value; }
364
365 bool is_register() const { return is_cpu_register() || is_fpu_register(); }
366 bool is_virtual() const { return is_virtual_cpu() || is_virtual_fpu(); }
367
368 bool is_constant() const { return is_pointer() && pointer()->as_constant() != NULL; }
369 bool is_address() const { return is_pointer() && pointer()->as_address() != NULL; }
370
371 bool is_float_kind() const { return is_pointer() ? pointer()->is_float_kind() : (kind_field() == fpu_register); }
372 bool is_oop() const;
373
374 // semantic for fpu- and xmm-registers:
375 // * is_float and is_double return true for xmm_registers
376 // (so is_single_fpu and is_single_xmm are true)
377 // * So you must always check for is_???_xmm prior to is_???_fpu to
378 // distinguish between fpu- and xmm-registers
379
380 bool is_stack() const { validate_type(); return check_value_mask(kind_mask, stack_value); }
381 bool is_single_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | single_size); }
382 bool is_double_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | double_size); }
383
384 bool is_cpu_register() const { validate_type(); return check_value_mask(kind_mask, cpu_register); }
385 bool is_virtual_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register | virtual_mask); }
386 bool is_fixed_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register); }
387 bool is_single_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | single_size); }
388 bool is_double_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | double_size); }
389
390 bool is_fpu_register() const { validate_type(); return check_value_mask(kind_mask, fpu_register); }
391 bool is_virtual_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register | virtual_mask); }
392 bool is_fixed_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register); }
393 bool is_single_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | single_size); }
394 bool is_double_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | double_size); }
395
396 bool is_xmm_register() const { validate_type(); return check_value_mask(kind_mask | is_xmm_mask, fpu_register | is_xmm_mask); }
397 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); }
398 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); }
399
400 // fast accessor functions for special bits that do not work for pointers
401 // (in this functions, the check for is_pointer() is omitted)
402 bool is_single_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, single_size); }
403 bool is_double_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, double_size); }
404 bool is_virtual_register() const { assert(is_register(), "type check"); return check_value_mask(virtual_mask, virtual_mask); }
405 bool is_oop_register() const { assert(is_register() || is_stack(), "type check"); return type_field_valid() == object_type; }
406 BasicType type_register() const { assert(is_register() || is_stack(), "type check"); return as_BasicType(type_field_valid()); }
407
408 bool is_last_use() const { assert(is_register(), "only works for registers"); return (value() & last_use_mask) != 0; }
409 bool is_fpu_stack_offset() const { assert(is_register(), "only works for registers"); return (value() & is_fpu_stack_offset_mask) != 0; }
410 LIR_Opr make_last_use() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | last_use_mask); }
411 LIR_Opr make_fpu_stack_offset() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | is_fpu_stack_offset_mask); }
412
413
414 int single_stack_ix() const { assert(is_single_stack() && !is_virtual(), "type check"); return (int)data(); }
415 int double_stack_ix() const { assert(is_double_stack() && !is_virtual(), "type check"); return (int)data(); }
416 RegNr cpu_regnr() const { assert(is_single_cpu() && !is_virtual(), "type check"); return (RegNr)data(); }
417 RegNr cpu_regnrLo() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
418 RegNr cpu_regnrHi() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
419 RegNr fpu_regnr() const { assert(is_single_fpu() && !is_virtual(), "type check"); return (RegNr)data(); }
420 RegNr fpu_regnrLo() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
421 RegNr fpu_regnrHi() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
422 RegNr xmm_regnr() const { assert(is_single_xmm() && !is_virtual(), "type check"); return (RegNr)data(); }
423 RegNr xmm_regnrLo() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
424 RegNr xmm_regnrHi() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
425 int vreg_number() const { assert(is_virtual(), "type check"); return (RegNr)data(); }
426
427 LIR_OprPtr* pointer() const { assert(is_pointer(), "type check"); return (LIR_OprPtr*)this; }
428 LIR_Const* as_constant_ptr() const { return pointer()->as_constant(); }
429 LIR_Address* as_address_ptr() const { return pointer()->as_address(); }
430
431 Register as_register() const;
432 Register as_register_lo() const;
433 Register as_register_hi() const;
434
435 Register as_pointer_register() {
436 #ifdef _LP64
437 if (is_double_cpu()) {
438 assert(as_register_lo() == as_register_hi(), "should be a single register");
439 return as_register_lo();
440 }
441 #endif
442 return as_register();
443 }
444
445 FloatRegister as_float_reg () const;
446 FloatRegister as_double_reg () const;
447 #ifdef X86
448 XMMRegister as_xmm_float_reg () const;
449 XMMRegister as_xmm_double_reg() const;
450 // for compatibility with RInfo
451 int fpu() const { return lo_reg_half(); }
452 #endif
453
454 jint as_jint() const { return as_constant_ptr()->as_jint(); }
455 jlong as_jlong() const { return as_constant_ptr()->as_jlong(); }
456 jfloat as_jfloat() const { return as_constant_ptr()->as_jfloat(); }
457 jdouble as_jdouble() const { return as_constant_ptr()->as_jdouble(); }
458 jobject as_jobject() const { return as_constant_ptr()->as_jobject(); }
459
460 void print() const PRODUCT_RETURN;
461 void print(outputStream* out) const PRODUCT_RETURN;
462 };
463
464
465 inline LIR_OprDesc::OprType as_OprType(BasicType type) {
466 switch (type) {
467 case T_INT: return LIR_OprDesc::int_type;
468 case T_LONG: return LIR_OprDesc::long_type;
469 case T_FLOAT: return LIR_OprDesc::float_type;
470 case T_DOUBLE: return LIR_OprDesc::double_type;
471 case T_OBJECT:
472 case T_ARRAY: return LIR_OprDesc::object_type;
473 case T_ADDRESS: return LIR_OprDesc::address_type;
474 case T_METADATA: return LIR_OprDesc::metadata_type;
475 case T_ILLEGAL: // fall through
476 default: ShouldNotReachHere(); return LIR_OprDesc::unknown_type;
477 }
478 }
479
480 inline BasicType as_BasicType(LIR_OprDesc::OprType t) {
481 switch (t) {
482 case LIR_OprDesc::int_type: return T_INT;
483 case LIR_OprDesc::long_type: return T_LONG;
484 case LIR_OprDesc::float_type: return T_FLOAT;
485 case LIR_OprDesc::double_type: return T_DOUBLE;
486 case LIR_OprDesc::object_type: return T_OBJECT;
487 case LIR_OprDesc::address_type: return T_ADDRESS;
488 case LIR_OprDesc::metadata_type:return T_METADATA;
489 case LIR_OprDesc::unknown_type: // fall through
490 default: ShouldNotReachHere(); return T_ILLEGAL;
491 }
492 }
493
494
495 // LIR_Address
496 class LIR_Address: public LIR_OprPtr {
497 friend class LIR_OpVisitState;
498
499 public:
500 // NOTE: currently these must be the log2 of the scale factor (and
501 // must also be equivalent to the ScaleFactor enum in
502 // assembler_i486.hpp)
503 enum Scale {
504 times_1 = 0,
505 times_2 = 1,
506 times_4 = 2,
507 times_8 = 3
508 };
509
510 private:
511 LIR_Opr _base;
512 LIR_Opr _index;
513 Scale _scale;
514 intx _disp;
515 BasicType _type;
516
517 public:
518 LIR_Address(LIR_Opr base, LIR_Opr index, BasicType type):
519 _base(base)
520 , _index(index)
521 , _scale(times_1)
522 , _disp(0)
523 , _type(type) { verify(); }
524
525 LIR_Address(LIR_Opr base, intx disp, BasicType type):
526 _base(base)
527 , _index(LIR_OprDesc::illegalOpr())
528 , _scale(times_1)
529 , _disp(disp)
530 , _type(type) { verify(); }
531
532 LIR_Address(LIR_Opr base, BasicType type):
533 _base(base)
534 , _index(LIR_OprDesc::illegalOpr())
535 , _scale(times_1)
536 , _disp(0)
537 , _type(type) { verify(); }
538
539 LIR_Address(LIR_Opr base, LIR_Opr index, intx disp, BasicType type):
540 _base(base)
541 , _index(index)
542 , _scale(times_1)
543 , _disp(disp)
544 , _type(type) { verify(); }
545
546 LIR_Address(LIR_Opr base, LIR_Opr index, Scale scale, intx disp, BasicType type):
547 _base(base)
548 , _index(index)
549 , _scale(scale)
550 , _disp(disp)
551 , _type(type) { verify(); }
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) {
610 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
611 LIR_OprDesc::float_type |
612 LIR_OprDesc::fpu_register |
613 LIR_OprDesc::single_size);
614 }
615
616 // Platform dependant.
617 static LIR_Opr double_fpu(int reg1, int reg2 = -1 /*fnoreg*/);
618
619 #ifdef ARM32
620 static LIR_Opr single_softfp(int reg) {
621 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
622 LIR_OprDesc::float_type |
623 LIR_OprDesc::cpu_register |
624 LIR_OprDesc::single_size);
625 }
626 static LIR_Opr double_softfp(int reg1, int reg2) {
627 return (LIR_Opr)(intptr_t)((reg1 << LIR_OprDesc::reg1_shift) |
628 (reg2 << LIR_OprDesc::reg2_shift) |
629 LIR_OprDesc::double_type |
630 LIR_OprDesc::cpu_register |
631 LIR_OprDesc::double_size);
632 }
633 #endif // ARM32
634
635 #if defined(X86)
636 static LIR_Opr single_xmm(int reg) {
637 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
638 LIR_OprDesc::float_type |
639 LIR_OprDesc::fpu_register |
640 LIR_OprDesc::single_size |
641 LIR_OprDesc::is_xmm_mask);
642 }
643 static LIR_Opr double_xmm(int reg) {
644 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
645 (reg << LIR_OprDesc::reg2_shift) |
646 LIR_OprDesc::double_type |
647 LIR_OprDesc::fpu_register |
648 LIR_OprDesc::double_size |
649 LIR_OprDesc::is_xmm_mask);
650 }
651 #endif // X86
652
653 static LIR_Opr virtual_register(int index, BasicType type) {
654 if (index > LIR_OprDesc::vreg_max) {
655 // Running out of virtual registers. Caller should bailout.
656 return illegalOpr;
657 }
658
659 LIR_Opr res;
660 switch (type) {
661 case T_OBJECT: // fall through
662 case T_ARRAY:
663 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
664 LIR_OprDesc::object_type |
665 LIR_OprDesc::cpu_register |
666 LIR_OprDesc::single_size |
667 LIR_OprDesc::virtual_mask);
668 break;
669
670 case T_METADATA:
671 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
672 LIR_OprDesc::metadata_type|
673 LIR_OprDesc::cpu_register |
674 LIR_OprDesc::single_size |
675 LIR_OprDesc::virtual_mask);
676 break;
677
678 case T_INT:
679 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
680 LIR_OprDesc::int_type |
681 LIR_OprDesc::cpu_register |
682 LIR_OprDesc::single_size |
683 LIR_OprDesc::virtual_mask);
684 break;
685
686 case T_ADDRESS:
687 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
688 LIR_OprDesc::address_type |
689 LIR_OprDesc::cpu_register |
690 LIR_OprDesc::single_size |
691 LIR_OprDesc::virtual_mask);
692 break;
693
694 case T_LONG:
695 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
696 LIR_OprDesc::long_type |
697 LIR_OprDesc::cpu_register |
698 LIR_OprDesc::double_size |
699 LIR_OprDesc::virtual_mask);
700 break;
701
702 #ifdef __SOFTFP__
703 case T_FLOAT:
704 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
705 LIR_OprDesc::float_type |
706 LIR_OprDesc::cpu_register |
707 LIR_OprDesc::single_size |
708 LIR_OprDesc::virtual_mask);
709 break;
710 case T_DOUBLE:
711 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
712 LIR_OprDesc::double_type |
713 LIR_OprDesc::cpu_register |
714 LIR_OprDesc::double_size |
715 LIR_OprDesc::virtual_mask);
716 break;
717 #else // __SOFTFP__
718 case T_FLOAT:
719 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
720 LIR_OprDesc::float_type |
721 LIR_OprDesc::fpu_register |
722 LIR_OprDesc::single_size |
723 LIR_OprDesc::virtual_mask);
724 break;
725
726 case
727 T_DOUBLE: res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
728 LIR_OprDesc::double_type |
729 LIR_OprDesc::fpu_register |
730 LIR_OprDesc::double_size |
731 LIR_OprDesc::virtual_mask);
732 break;
733 #endif // __SOFTFP__
734 default: ShouldNotReachHere(); res = illegalOpr;
735 }
736
737 #ifdef ASSERT
738 res->validate_type();
739 assert(res->vreg_number() == index, "conversion check");
740 assert(index >= LIR_OprDesc::vreg_base, "must start at vreg_base");
741
742 // old-style calculation; check if old and new method are equal
743 LIR_OprDesc::OprType t = as_OprType(type);
744 #ifdef __SOFTFP__
745 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
746 t |
747 LIR_OprDesc::cpu_register |
748 LIR_OprDesc::size_for(type) | LIR_OprDesc::virtual_mask);
749 #else // __SOFTFP__
750 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | t |
751 ((type == T_FLOAT || type == T_DOUBLE) ? LIR_OprDesc::fpu_register : LIR_OprDesc::cpu_register) |
752 LIR_OprDesc::size_for(type) | LIR_OprDesc::virtual_mask);
753 assert(res == old_res, "old and new method not equal");
754 #endif // __SOFTFP__
755 #endif // ASSERT
756
757 return res;
758 }
759
760 // 'index' is computed by FrameMap::local_stack_pos(index); do not use other parameters as
761 // the index is platform independent; a double stack useing indeces 2 and 3 has always
762 // index 2.
763 static LIR_Opr stack(int index, BasicType type) {
764 LIR_Opr res;
765 switch (type) {
766 case T_OBJECT: // fall through
767 case T_ARRAY:
768 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
769 LIR_OprDesc::object_type |
770 LIR_OprDesc::stack_value |
771 LIR_OprDesc::single_size);
772 break;
773
774 case T_METADATA:
775 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
776 LIR_OprDesc::metadata_type |
777 LIR_OprDesc::stack_value |
778 LIR_OprDesc::single_size);
779 break;
780 case T_INT:
781 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
782 LIR_OprDesc::int_type |
783 LIR_OprDesc::stack_value |
784 LIR_OprDesc::single_size);
785 break;
786
787 case T_ADDRESS:
788 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
789 LIR_OprDesc::address_type |
790 LIR_OprDesc::stack_value |
791 LIR_OprDesc::single_size);
792 break;
793
794 case T_LONG:
795 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
796 LIR_OprDesc::long_type |
797 LIR_OprDesc::stack_value |
798 LIR_OprDesc::double_size);
799 break;
800
801 case T_FLOAT:
802 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
803 LIR_OprDesc::float_type |
804 LIR_OprDesc::stack_value |
805 LIR_OprDesc::single_size);
806 break;
807 case T_DOUBLE:
808 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
809 LIR_OprDesc::double_type |
810 LIR_OprDesc::stack_value |
811 LIR_OprDesc::double_size);
812 break;
813
814 default: ShouldNotReachHere(); res = illegalOpr;
815 }
816
817 #ifdef ASSERT
818 assert(index >= 0, "index must be positive");
819 assert(index == (int)res->data(), "conversion check");
820
821 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
822 LIR_OprDesc::stack_value |
823 as_OprType(type) |
824 LIR_OprDesc::size_for(type));
825 assert(res == old_res, "old and new method not equal");
826 #endif
827
828 return res;
829 }
830
831 static LIR_Opr intConst(jint i) { return (LIR_Opr)(new LIR_Const(i)); }
832 static LIR_Opr longConst(jlong l) { return (LIR_Opr)(new LIR_Const(l)); }
833 static LIR_Opr floatConst(jfloat f) { return (LIR_Opr)(new LIR_Const(f)); }
834 static LIR_Opr doubleConst(jdouble d) { return (LIR_Opr)(new LIR_Const(d)); }
835 static LIR_Opr oopConst(jobject o) { return (LIR_Opr)(new LIR_Const(o)); }
836 static LIR_Opr address(LIR_Address* a) { return (LIR_Opr)a; }
837 static LIR_Opr intptrConst(void* p) { return (LIR_Opr)(new LIR_Const(p)); }
838 static LIR_Opr intptrConst(intptr_t v) { return (LIR_Opr)(new LIR_Const((void*)v)); }
839 static LIR_Opr illegal() { return (LIR_Opr)-1; }
840 static LIR_Opr addressConst(jint i) { return (LIR_Opr)(new LIR_Const(i, true)); }
841 static LIR_Opr metadataConst(Metadata* m) { return (LIR_Opr)(new LIR_Const(m)); }
842
843 static LIR_Opr value_type(ValueType* type);
844 };
845
846
847 //-------------------------------------------------------------------------------
848 // LIR Instructions
849 //-------------------------------------------------------------------------------
850 //
851 // Note:
852 // - every instruction has a result operand
853 // - every instruction has an CodeEmitInfo operand (can be revisited later)
854 // - every instruction has a LIR_OpCode operand
855 // - LIR_OpN, means an instruction that has N input operands
856 //
857 // class hierarchy:
858 //
859 class LIR_Op;
860 class LIR_Op0;
861 class LIR_OpLabel;
862 class LIR_Op1;
863 class LIR_OpBranch;
864 class LIR_OpConvert;
865 class LIR_OpAllocObj;
866 class LIR_OpReturn;
867 class LIR_OpRoundFP;
868 class LIR_Op2;
869 class LIR_OpDelay;
870 class LIR_Op3;
871 class LIR_OpAllocArray;
872 class LIR_OpCall;
873 class LIR_OpJavaCall;
874 class LIR_OpRTCall;
875 class LIR_OpArrayCopy;
876 class LIR_OpUpdateCRC32;
877 class LIR_OpLock;
878 class LIR_OpTypeCheck;
879 class LIR_OpCompareAndSwap;
880 class LIR_OpProfileCall;
881 class LIR_OpProfileType;
882 #ifdef ASSERT
883 class LIR_OpAssert;
884 #endif
885
886 // LIR operation codes
887 enum LIR_Code {
888 lir_none
889 , begin_op0
890 , lir_label
891 , lir_nop
892 , lir_backwardbranch_target
893 , lir_std_entry
894 , lir_osr_entry
895 , lir_fpop_raw
896 , lir_breakpoint
897 , lir_rtcall
898 , lir_membar
899 , lir_membar_acquire
900 , lir_membar_release
901 , lir_membar_loadload
902 , lir_membar_storestore
903 , lir_membar_loadstore
904 , lir_membar_storeload
905 , lir_get_thread
906 , lir_on_spin_wait
907 , end_op0
908 , begin_op1
909 , lir_fxch
910 , lir_fld
911 , lir_push
912 , lir_pop
913 , lir_null_check
914 , lir_return
915 , lir_leal
916 , lir_branch
917 , lir_cond_float_branch
918 , lir_move
919 , lir_convert
920 , lir_alloc_object
921 , lir_monaddr
922 , lir_roundfp
923 , lir_safepoint
924 , lir_unwind
925 , end_op1
926 , begin_op2
927 , lir_cmp
928 , lir_cmp_l2i
929 , lir_ucmp_fd2i
930 , lir_cmp_fd2i
931 , lir_cmove
932 , lir_add
933 , lir_sub
934 , lir_mul
935 , lir_div
936 , lir_rem
937 , lir_sqrt
938 , lir_abs
939 , lir_neg
940 , lir_tan
941 , lir_log10
942 , lir_logic_and
943 , lir_logic_or
944 , lir_logic_xor
945 , lir_shl
946 , lir_shr
947 , lir_ushr
948 , lir_alloc_array
949 , lir_throw
950 , lir_xadd
951 , lir_xchg
952 , end_op2
953 , begin_op3
954 , lir_idiv
955 , lir_irem
956 , lir_fmad
957 , lir_fmaf
958 , end_op3
959 , begin_opJavaCall
960 , lir_static_call
961 , lir_optvirtual_call
962 , lir_icvirtual_call
963 , lir_dynamic_call
964 , end_opJavaCall
965 , begin_opArrayCopy
966 , lir_arraycopy
967 , end_opArrayCopy
968 , begin_opUpdateCRC32
969 , lir_updatecrc32
970 , end_opUpdateCRC32
971 , begin_opLock
972 , lir_lock
973 , lir_unlock
974 , end_opLock
975 , begin_delay_slot
976 , lir_delay_slot
977 , end_delay_slot
978 , begin_opTypeCheck
979 , lir_instanceof
980 , lir_checkcast
981 , lir_store_check
982 , end_opTypeCheck
983 , begin_opCompareAndSwap
984 , lir_cas_long
985 , lir_cas_obj
986 , lir_cas_int
987 , end_opCompareAndSwap
988 , begin_opMDOProfile
989 , lir_profile_call
990 , lir_profile_type
991 , end_opMDOProfile
992 , begin_opAssert
993 , lir_assert
994 , end_opAssert
995 };
996
997
998 enum LIR_Condition {
999 lir_cond_equal
1000 , lir_cond_notEqual
1001 , lir_cond_less
1002 , lir_cond_lessEqual
1003 , lir_cond_greaterEqual
1004 , lir_cond_greater
1005 , lir_cond_belowEqual
1006 , lir_cond_aboveEqual
1007 , lir_cond_always
1008 , lir_cond_unknown = -1
1009 };
1010
1011
1012 enum LIR_PatchCode {
1013 lir_patch_none,
1014 lir_patch_low,
1015 lir_patch_high,
1016 lir_patch_normal
1017 };
1018
1019
1020 enum LIR_MoveKind {
1021 lir_move_normal,
1022 lir_move_volatile,
1023 lir_move_unaligned,
1024 lir_move_wide,
1025 lir_move_max_flag
1026 };
1027
1028
1029 // --------------------------------------------------
1030 // LIR_Op
1031 // --------------------------------------------------
1032 class LIR_Op: public CompilationResourceObj {
1033 friend class LIR_OpVisitState;
1034
1035 #ifdef ASSERT
1036 private:
1037 const char * _file;
1038 int _line;
1039 #endif
1040
1041 protected:
1042 LIR_Opr _result;
1043 unsigned short _code;
1044 unsigned short _flags;
1045 CodeEmitInfo* _info;
1046 int _id; // value id for register allocation
1047 int _fpu_pop_count;
1048 Instruction* _source; // for debugging
1049
1050 static void print_condition(outputStream* out, LIR_Condition cond) PRODUCT_RETURN;
1051
1052 protected:
1053 static bool is_in_range(LIR_Code test, LIR_Code start, LIR_Code end) { return start < test && test < end; }
1054
1055 public:
1056 LIR_Op()
1057 :
1058 #ifdef ASSERT
1059 _file(NULL)
1060 , _line(0),
1061 #endif
1062 _result(LIR_OprFact::illegalOpr)
1063 , _code(lir_none)
1064 , _flags(0)
1065 , _info(NULL)
1066 , _id(-1)
1067 , _fpu_pop_count(0)
1068 , _source(NULL) {}
1069
1070 LIR_Op(LIR_Code code, LIR_Opr result, CodeEmitInfo* info)
1071 :
1072 #ifdef ASSERT
1073 _file(NULL)
1074 , _line(0),
1075 #endif
1076 _result(result)
1077 , _code(code)
1078 , _flags(0)
1079 , _info(info)
1080 , _id(-1)
1081 , _fpu_pop_count(0)
1082 , _source(NULL) {}
1083
1084 CodeEmitInfo* info() const { return _info; }
1085 LIR_Code code() const { return (LIR_Code)_code; }
1086 LIR_Opr result_opr() const { return _result; }
1087 void set_result_opr(LIR_Opr opr) { _result = opr; }
1088
1089 #ifdef ASSERT
1090 void set_file_and_line(const char * file, int line) {
1091 _file = file;
1092 _line = line;
1093 }
1094 #endif
1095
1096 virtual const char * name() const PRODUCT_RETURN0;
1097 virtual void visit(LIR_OpVisitState* state);
1098
1099 int id() const { return _id; }
1100 void set_id(int id) { _id = id; }
1101
1102 // FPU stack simulation helpers -- only used on Intel
1103 void set_fpu_pop_count(int count) { assert(count >= 0 && count <= 1, "currently only 0 and 1 are valid"); _fpu_pop_count = count; }
1104 int fpu_pop_count() const { return _fpu_pop_count; }
1105 bool pop_fpu_stack() { return _fpu_pop_count > 0; }
1106
1107 Instruction* source() const { return _source; }
1108 void set_source(Instruction* ins) { _source = ins; }
1109
1110 virtual void emit_code(LIR_Assembler* masm) = 0;
1111 virtual void print_instr(outputStream* out) const = 0;
1112 virtual void print_on(outputStream* st) const PRODUCT_RETURN;
1113
1114 virtual bool is_patching() { return false; }
1115 virtual LIR_OpCall* as_OpCall() { return NULL; }
1116 virtual LIR_OpJavaCall* as_OpJavaCall() { return NULL; }
1117 virtual LIR_OpLabel* as_OpLabel() { return NULL; }
1118 virtual LIR_OpDelay* as_OpDelay() { return NULL; }
1119 virtual LIR_OpLock* as_OpLock() { return NULL; }
1120 virtual LIR_OpAllocArray* as_OpAllocArray() { return NULL; }
1121 virtual LIR_OpAllocObj* as_OpAllocObj() { return NULL; }
1122 virtual LIR_OpRoundFP* as_OpRoundFP() { return NULL; }
1123 virtual LIR_OpBranch* as_OpBranch() { return NULL; }
1124 virtual LIR_OpReturn* as_OpReturn() { return NULL; }
1125 virtual LIR_OpRTCall* as_OpRTCall() { return NULL; }
1126 virtual LIR_OpConvert* as_OpConvert() { return NULL; }
1127 virtual LIR_Op0* as_Op0() { return NULL; }
1128 virtual LIR_Op1* as_Op1() { return NULL; }
1129 virtual LIR_Op2* as_Op2() { return NULL; }
1130 virtual LIR_Op3* as_Op3() { return NULL; }
1131 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return NULL; }
1132 virtual LIR_OpUpdateCRC32* as_OpUpdateCRC32() { return NULL; }
1133 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return NULL; }
1134 virtual LIR_OpCompareAndSwap* as_OpCompareAndSwap() { return NULL; }
1135 virtual LIR_OpProfileCall* as_OpProfileCall() { return NULL; }
1136 virtual LIR_OpProfileType* as_OpProfileType() { return NULL; }
1137 #ifdef ASSERT
1138 virtual LIR_OpAssert* as_OpAssert() { return NULL; }
1139 #endif
1140
1141 virtual void verify() const {}
1142 };
1143
1144 // for calls
1145 class LIR_OpCall: public LIR_Op {
1146 friend class LIR_OpVisitState;
1147
1148 protected:
1149 address _addr;
1150 LIR_OprList* _arguments;
1151 protected:
1152 LIR_OpCall(LIR_Code code, address addr, LIR_Opr result,
1153 LIR_OprList* arguments, CodeEmitInfo* info = NULL)
1154 : LIR_Op(code, result, info)
1155 , _addr(addr)
1156 , _arguments(arguments) {}
1157
1158 public:
1159 address addr() const { return _addr; }
1160 const LIR_OprList* arguments() const { return _arguments; }
1161 virtual LIR_OpCall* as_OpCall() { return this; }
1162 };
1163
1164
1165 // --------------------------------------------------
1166 // LIR_OpJavaCall
1167 // --------------------------------------------------
1168 class LIR_OpJavaCall: public LIR_OpCall {
1169 friend class LIR_OpVisitState;
1170
1171 private:
1172 ciMethod* _method;
1173 LIR_Opr _receiver;
1174 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.
1175
1176 public:
1177 LIR_OpJavaCall(LIR_Code code, ciMethod* method,
1178 LIR_Opr receiver, LIR_Opr result,
1179 address addr, LIR_OprList* arguments,
1180 CodeEmitInfo* info)
1181 : LIR_OpCall(code, addr, result, arguments, info)
1182 , _method(method)
1183 , _receiver(receiver)
1184 , _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr)
1185 { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); }
1186
1187 LIR_OpJavaCall(LIR_Code code, ciMethod* method,
1188 LIR_Opr receiver, LIR_Opr result, intptr_t vtable_offset,
1189 LIR_OprList* arguments, CodeEmitInfo* info)
1190 : LIR_OpCall(code, (address)vtable_offset, result, arguments, info)
1191 , _method(method)
1192 , _receiver(receiver)
1193 , _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr)
1194 { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); }
1195
1196 LIR_Opr receiver() const { return _receiver; }
1197 ciMethod* method() const { return _method; }
1198
1199 // JSR 292 support.
1200 bool is_invokedynamic() const { return code() == lir_dynamic_call; }
1201 bool is_method_handle_invoke() const {
1202 return method()->is_compiled_lambda_form() || // Java-generated lambda form
1203 method()->is_method_handle_intrinsic(); // JVM-generated MH intrinsic
1204 }
1205
1206 virtual void emit_code(LIR_Assembler* masm);
1207 virtual LIR_OpJavaCall* as_OpJavaCall() { return this; }
1208 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1209 };
1210
1211 // --------------------------------------------------
1212 // LIR_OpLabel
1213 // --------------------------------------------------
1214 // Location where a branch can continue
1215 class LIR_OpLabel: public LIR_Op {
1216 friend class LIR_OpVisitState;
1217
1218 private:
1219 Label* _label;
1220 public:
1221 LIR_OpLabel(Label* lbl)
1222 : LIR_Op(lir_label, LIR_OprFact::illegalOpr, NULL)
1223 , _label(lbl) {}
1224 Label* label() const { return _label; }
1225
1226 virtual void emit_code(LIR_Assembler* masm);
1227 virtual LIR_OpLabel* as_OpLabel() { return this; }
1228 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1229 };
1230
1231 // LIR_OpArrayCopy
1232 class LIR_OpArrayCopy: public LIR_Op {
1233 friend class LIR_OpVisitState;
1234
1235 private:
1236 ArrayCopyStub* _stub;
1237 LIR_Opr _src;
1238 LIR_Opr _src_pos;
1239 LIR_Opr _dst;
1240 LIR_Opr _dst_pos;
1241 LIR_Opr _length;
1242 LIR_Opr _tmp;
1243 ciArrayKlass* _expected_type;
1244 int _flags;
1245
1246 public:
1247 enum Flags {
1248 src_null_check = 1 << 0,
1249 dst_null_check = 1 << 1,
1250 src_pos_positive_check = 1 << 2,
1251 dst_pos_positive_check = 1 << 3,
1252 length_positive_check = 1 << 4,
1253 src_range_check = 1 << 5,
1254 dst_range_check = 1 << 6,
1255 type_check = 1 << 7,
1256 overlapping = 1 << 8,
1257 unaligned = 1 << 9,
1258 src_objarray = 1 << 10,
1259 dst_objarray = 1 << 11,
1260 all_flags = (1 << 12) - 1
1261 };
1262
1263 LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length, LIR_Opr tmp,
1264 ciArrayKlass* expected_type, int flags, CodeEmitInfo* info);
1265
1266 LIR_Opr src() const { return _src; }
1267 LIR_Opr src_pos() const { return _src_pos; }
1268 LIR_Opr dst() const { return _dst; }
1269 LIR_Opr dst_pos() const { return _dst_pos; }
1270 LIR_Opr length() const { return _length; }
1271 LIR_Opr tmp() const { return _tmp; }
1272 int flags() const { return _flags; }
1273 ciArrayKlass* expected_type() const { return _expected_type; }
1274 ArrayCopyStub* stub() const { return _stub; }
1275
1276 virtual void emit_code(LIR_Assembler* masm);
1277 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return this; }
1278 void print_instr(outputStream* out) const PRODUCT_RETURN;
1279 };
1280
1281 // LIR_OpUpdateCRC32
1282 class LIR_OpUpdateCRC32: public LIR_Op {
1283 friend class LIR_OpVisitState;
1284
1285 private:
1286 LIR_Opr _crc;
1287 LIR_Opr _val;
1288
1289 public:
1290
1291 LIR_OpUpdateCRC32(LIR_Opr crc, LIR_Opr val, LIR_Opr res);
1292
1293 LIR_Opr crc() const { return _crc; }
1294 LIR_Opr val() const { return _val; }
1295
1296 virtual void emit_code(LIR_Assembler* masm);
1297 virtual LIR_OpUpdateCRC32* as_OpUpdateCRC32() { return this; }
1298 void print_instr(outputStream* out) const PRODUCT_RETURN;
1299 };
1300
1301 // --------------------------------------------------
1302 // LIR_Op0
1303 // --------------------------------------------------
1304 class LIR_Op0: public LIR_Op {
1305 friend class LIR_OpVisitState;
1306
1307 public:
1308 LIR_Op0(LIR_Code code)
1309 : LIR_Op(code, LIR_OprFact::illegalOpr, NULL) { assert(is_in_range(code, begin_op0, end_op0), "code check"); }
1310 LIR_Op0(LIR_Code code, LIR_Opr result, CodeEmitInfo* info = NULL)
1311 : LIR_Op(code, result, info) { assert(is_in_range(code, begin_op0, end_op0), "code check"); }
1312
1313 virtual void emit_code(LIR_Assembler* masm);
1314 virtual LIR_Op0* as_Op0() { return this; }
1315 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1316 };
1317
1318
1319 // --------------------------------------------------
1320 // LIR_Op1
1321 // --------------------------------------------------
1322
1323 class LIR_Op1: public LIR_Op {
1324 friend class LIR_OpVisitState;
1325
1326 protected:
1327 LIR_Opr _opr; // input operand
1328 BasicType _type; // Operand types
1329 LIR_PatchCode _patch; // only required with patchin (NEEDS_CLEANUP: do we want a special instruction for patching?)
1330
1331 static void print_patch_code(outputStream* out, LIR_PatchCode code);
1332
1333 void set_kind(LIR_MoveKind kind) {
1334 assert(code() == lir_move, "must be");
1335 _flags = kind;
1336 }
1337
1338 public:
1339 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)
1340 : LIR_Op(code, result, info)
1341 , _opr(opr)
1342 , _type(type)
1343 , _patch(patch) { assert(is_in_range(code, begin_op1, end_op1), "code check"); }
1344
1345 LIR_Op1(LIR_Code code, LIR_Opr opr, LIR_Opr result, BasicType type, LIR_PatchCode patch, CodeEmitInfo* info, LIR_MoveKind kind)
1346 : LIR_Op(code, result, info)
1347 , _opr(opr)
1348 , _type(type)
1349 , _patch(patch) {
1350 assert(code == lir_move, "must be");
1351 set_kind(kind);
1352 }
1353
1354 LIR_Op1(LIR_Code code, LIR_Opr opr, CodeEmitInfo* info)
1355 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1356 , _opr(opr)
1357 , _type(T_ILLEGAL)
1358 , _patch(lir_patch_none) { assert(is_in_range(code, begin_op1, end_op1), "code check"); }
1359
1360 LIR_Opr in_opr() const { return _opr; }
1361 LIR_PatchCode patch_code() const { return _patch; }
1362 BasicType type() const { return _type; }
1363
1364 LIR_MoveKind move_kind() const {
1365 assert(code() == lir_move, "must be");
1366 return (LIR_MoveKind)_flags;
1367 }
1368
1369 virtual bool is_patching() { return _patch != lir_patch_none; }
1370 virtual void emit_code(LIR_Assembler* masm);
1371 virtual LIR_Op1* as_Op1() { return this; }
1372 virtual const char * name() const PRODUCT_RETURN0;
1373
1374 void set_in_opr(LIR_Opr opr) { _opr = opr; }
1375
1376 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1377 virtual void verify() const;
1378 };
1379
1380
1381 // for runtime calls
1382 class LIR_OpRTCall: public LIR_OpCall {
1383 friend class LIR_OpVisitState;
1384
1385 private:
1386 LIR_Opr _tmp;
1387 public:
1388 LIR_OpRTCall(address addr, LIR_Opr tmp,
1389 LIR_Opr result, LIR_OprList* arguments, CodeEmitInfo* info = NULL)
1390 : LIR_OpCall(lir_rtcall, addr, result, arguments, info)
1391 , _tmp(tmp) {}
1392
1393 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1394 virtual void emit_code(LIR_Assembler* masm);
1395 virtual LIR_OpRTCall* as_OpRTCall() { return this; }
1396
1397 LIR_Opr tmp() const { return _tmp; }
1398
1399 virtual void verify() const;
1400 };
1401
1402
1403 class LIR_OpBranch: public LIR_Op {
1404 friend class LIR_OpVisitState;
1405
1406 private:
1407 LIR_Condition _cond;
1408 Label* _label;
1409 BlockBegin* _block; // if this is a branch to a block, this is the block
1410 BlockBegin* _ublock; // if this is a float-branch, this is the unorderd block
1411 CodeStub* _stub; // if this is a branch to a stub, this is the stub
1412
1413 public:
1414 LIR_OpBranch(LIR_Condition cond, Label* lbl)
1415 : LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*) NULL)
1416 , _cond(cond)
1417 , _label(lbl)
1418 , _block(NULL)
1419 , _ublock(NULL)
1420 , _stub(NULL) { }
1421
1422 LIR_OpBranch(LIR_Condition cond, BlockBegin* block);
1423 LIR_OpBranch(LIR_Condition cond, CodeStub* stub);
1424
1425 // for unordered comparisons
1426 LIR_OpBranch(LIR_Condition cond, BlockBegin* block, BlockBegin* ublock);
1427
1428 LIR_Condition cond() const { return _cond; }
1429 Label* label() const { return _label; }
1430 BlockBegin* block() const { return _block; }
1431 BlockBegin* ublock() const { return _ublock; }
1432 CodeStub* stub() const { return _stub; }
1433
1434 void change_block(BlockBegin* b);
1435 void change_ublock(BlockBegin* b);
1436 void negate_cond();
1437
1438 virtual void emit_code(LIR_Assembler* masm);
1439 virtual LIR_OpBranch* as_OpBranch() { return this; }
1440 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1441 };
1442
1443 class LIR_OpReturn: public LIR_Op1 {
1444 friend class LIR_OpVisitState;
1445
1446 private:
1447 C1SafepointPollStub* _stub;
1448
1449 public:
1450 LIR_OpReturn(LIR_Opr opr);
1451
1452 C1SafepointPollStub* stub() const { return _stub; }
1453 virtual LIR_OpReturn* as_OpReturn() { return this; }
1454 };
1455
1456 class ConversionStub;
1457
1458 class LIR_OpConvert: public LIR_Op1 {
1459 friend class LIR_OpVisitState;
1460
1461 private:
1462 Bytecodes::Code _bytecode;
1463 ConversionStub* _stub;
1464
1465 public:
1466 LIR_OpConvert(Bytecodes::Code code, LIR_Opr opr, LIR_Opr result, ConversionStub* stub)
1467 : LIR_Op1(lir_convert, opr, result)
1468 , _bytecode(code)
1469 , _stub(stub) {}
1470
1471 Bytecodes::Code bytecode() const { return _bytecode; }
1472 ConversionStub* stub() const { return _stub; }
1473
1474 virtual void emit_code(LIR_Assembler* masm);
1475 virtual LIR_OpConvert* as_OpConvert() { return this; }
1476 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1477
1478 static void print_bytecode(outputStream* out, Bytecodes::Code code) PRODUCT_RETURN;
1479 };
1480
1481
1482 // LIR_OpAllocObj
1483 class LIR_OpAllocObj : public LIR_Op1 {
1484 friend class LIR_OpVisitState;
1485
1486 private:
1487 LIR_Opr _tmp1;
1488 LIR_Opr _tmp2;
1489 LIR_Opr _tmp3;
1490 LIR_Opr _tmp4;
1491 int _hdr_size;
1492 int _obj_size;
1493 CodeStub* _stub;
1494 bool _init_check;
1495
1496 public:
1497 LIR_OpAllocObj(LIR_Opr klass, LIR_Opr result,
1498 LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1499 int hdr_size, int obj_size, bool init_check, CodeStub* stub)
1500 : LIR_Op1(lir_alloc_object, klass, result)
1501 , _tmp1(t1)
1502 , _tmp2(t2)
1503 , _tmp3(t3)
1504 , _tmp4(t4)
1505 , _hdr_size(hdr_size)
1506 , _obj_size(obj_size)
1507 , _stub(stub)
1508 , _init_check(init_check) { }
1509
1510 LIR_Opr klass() const { return in_opr(); }
1511 LIR_Opr obj() const { return result_opr(); }
1512 LIR_Opr tmp1() const { return _tmp1; }
1513 LIR_Opr tmp2() const { return _tmp2; }
1514 LIR_Opr tmp3() const { return _tmp3; }
1515 LIR_Opr tmp4() const { return _tmp4; }
1516 int header_size() const { return _hdr_size; }
1517 int object_size() const { return _obj_size; }
1518 bool init_check() const { return _init_check; }
1519 CodeStub* stub() const { return _stub; }
1520
1521 virtual void emit_code(LIR_Assembler* masm);
1522 virtual LIR_OpAllocObj * as_OpAllocObj () { return this; }
1523 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1524 };
1525
1526
1527 // LIR_OpRoundFP
1528 class LIR_OpRoundFP : public LIR_Op1 {
1529 friend class LIR_OpVisitState;
1530
1531 private:
1532 LIR_Opr _tmp;
1533
1534 public:
1535 LIR_OpRoundFP(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result)
1536 : LIR_Op1(lir_roundfp, reg, result)
1537 , _tmp(stack_loc_temp) {}
1538
1539 LIR_Opr tmp() const { return _tmp; }
1540 virtual LIR_OpRoundFP* as_OpRoundFP() { return this; }
1541 void print_instr(outputStream* out) const PRODUCT_RETURN;
1542 };
1543
1544 // LIR_OpTypeCheck
1545 class LIR_OpTypeCheck: public LIR_Op {
1546 friend class LIR_OpVisitState;
1547
1548 private:
1549 LIR_Opr _object;
1550 LIR_Opr _array;
1551 ciKlass* _klass;
1552 LIR_Opr _tmp1;
1553 LIR_Opr _tmp2;
1554 LIR_Opr _tmp3;
1555 bool _fast_check;
1556 CodeEmitInfo* _info_for_patch;
1557 CodeEmitInfo* _info_for_exception;
1558 CodeStub* _stub;
1559 ciMethod* _profiled_method;
1560 int _profiled_bci;
1561 bool _should_profile;
1562
1563 public:
1564 LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
1565 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1566 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub);
1567 LIR_OpTypeCheck(LIR_Code code, LIR_Opr object, LIR_Opr array,
1568 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception);
1569
1570 LIR_Opr object() const { return _object; }
1571 LIR_Opr array() const { assert(code() == lir_store_check, "not valid"); return _array; }
1572 LIR_Opr tmp1() const { return _tmp1; }
1573 LIR_Opr tmp2() const { return _tmp2; }
1574 LIR_Opr tmp3() const { return _tmp3; }
1575 ciKlass* klass() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _klass; }
1576 bool fast_check() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _fast_check; }
1577 CodeEmitInfo* info_for_patch() const { return _info_for_patch; }
1578 CodeEmitInfo* info_for_exception() const { return _info_for_exception; }
1579 CodeStub* stub() const { return _stub; }
1580
1581 // MethodData* profiling
1582 void set_profiled_method(ciMethod *method) { _profiled_method = method; }
1583 void set_profiled_bci(int bci) { _profiled_bci = bci; }
1584 void set_should_profile(bool b) { _should_profile = b; }
1585 ciMethod* profiled_method() const { return _profiled_method; }
1586 int profiled_bci() const { return _profiled_bci; }
1587 bool should_profile() const { return _should_profile; }
1588
1589 virtual bool is_patching() { return _info_for_patch != NULL; }
1590 virtual void emit_code(LIR_Assembler* masm);
1591 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return this; }
1592 void print_instr(outputStream* out) const PRODUCT_RETURN;
1593 };
1594
1595 // LIR_Op2
1596 class LIR_Op2: public LIR_Op {
1597 friend class LIR_OpVisitState;
1598
1599 int _fpu_stack_size; // for sin/cos implementation on Intel
1600
1601 protected:
1602 LIR_Opr _opr1;
1603 LIR_Opr _opr2;
1604 BasicType _type;
1605 LIR_Opr _tmp1;
1606 LIR_Opr _tmp2;
1607 LIR_Opr _tmp3;
1608 LIR_Opr _tmp4;
1609 LIR_Opr _tmp5;
1610 LIR_Condition _condition;
1611
1612 void verify() const;
1613
1614 public:
1615 LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, CodeEmitInfo* info = NULL)
1616 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1617 , _fpu_stack_size(0)
1618 , _opr1(opr1)
1619 , _opr2(opr2)
1620 , _type(T_ILLEGAL)
1621 , _tmp1(LIR_OprFact::illegalOpr)
1622 , _tmp2(LIR_OprFact::illegalOpr)
1623 , _tmp3(LIR_OprFact::illegalOpr)
1624 , _tmp4(LIR_OprFact::illegalOpr)
1625 , _tmp5(LIR_OprFact::illegalOpr)
1626 , _condition(condition) {
1627 assert(code == lir_cmp || code == lir_assert, "code check");
1628 }
1629
1630 LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, BasicType type)
1631 : LIR_Op(code, result, NULL)
1632 , _fpu_stack_size(0)
1633 , _opr1(opr1)
1634 , _opr2(opr2)
1635 , _type(type)
1636 , _tmp1(LIR_OprFact::illegalOpr)
1637 , _tmp2(LIR_OprFact::illegalOpr)
1638 , _tmp3(LIR_OprFact::illegalOpr)
1639 , _tmp4(LIR_OprFact::illegalOpr)
1640 , _tmp5(LIR_OprFact::illegalOpr)
1641 , _condition(condition) {
1642 assert(code == lir_cmove, "code check");
1643 assert(type != T_ILLEGAL, "cmove should have type");
1644 }
1645
1646 LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result = LIR_OprFact::illegalOpr,
1647 CodeEmitInfo* info = NULL, BasicType type = T_ILLEGAL)
1648 : LIR_Op(code, result, info)
1649 , _fpu_stack_size(0)
1650 , _opr1(opr1)
1651 , _opr2(opr2)
1652 , _type(type)
1653 , _tmp1(LIR_OprFact::illegalOpr)
1654 , _tmp2(LIR_OprFact::illegalOpr)
1655 , _tmp3(LIR_OprFact::illegalOpr)
1656 , _tmp4(LIR_OprFact::illegalOpr)
1657 , _tmp5(LIR_OprFact::illegalOpr)
1658 , _condition(lir_cond_unknown) {
1659 assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check");
1660 }
1661
1662 LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, LIR_Opr tmp1, LIR_Opr tmp2 = LIR_OprFact::illegalOpr,
1663 LIR_Opr tmp3 = LIR_OprFact::illegalOpr, LIR_Opr tmp4 = LIR_OprFact::illegalOpr, LIR_Opr tmp5 = LIR_OprFact::illegalOpr)
1664 : LIR_Op(code, result, NULL)
1665 , _fpu_stack_size(0)
1666 , _opr1(opr1)
1667 , _opr2(opr2)
1668 , _type(T_ILLEGAL)
1669 , _tmp1(tmp1)
1670 , _tmp2(tmp2)
1671 , _tmp3(tmp3)
1672 , _tmp4(tmp4)
1673 , _tmp5(tmp5)
1674 , _condition(lir_cond_unknown) {
1675 assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check");
1676 }
1677
1678 LIR_Opr in_opr1() const { return _opr1; }
1679 LIR_Opr in_opr2() const { return _opr2; }
1680 BasicType type() const { return _type; }
1681 LIR_Opr tmp1_opr() const { return _tmp1; }
1682 LIR_Opr tmp2_opr() const { return _tmp2; }
1683 LIR_Opr tmp3_opr() const { return _tmp3; }
1684 LIR_Opr tmp4_opr() const { return _tmp4; }
1685 LIR_Opr tmp5_opr() const { return _tmp5; }
1686 LIR_Condition condition() const {
1687 assert(code() == lir_cmp || code() == lir_cmove || code() == lir_assert, "only valid for cmp and cmove and assert"); return _condition;
1688 }
1689 void set_condition(LIR_Condition condition) {
1690 assert(code() == lir_cmp || code() == lir_cmove, "only valid for cmp and cmove"); _condition = condition;
1691 }
1692
1693 void set_fpu_stack_size(int size) { _fpu_stack_size = size; }
1694 int fpu_stack_size() const { return _fpu_stack_size; }
1695
1696 void set_in_opr1(LIR_Opr opr) { _opr1 = opr; }
1697 void set_in_opr2(LIR_Opr opr) { _opr2 = opr; }
1698
1699 virtual void emit_code(LIR_Assembler* masm);
1700 virtual LIR_Op2* as_Op2() { return this; }
1701 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1702 };
1703
1704 class LIR_OpAllocArray : public LIR_Op {
1705 friend class LIR_OpVisitState;
1706
1707 private:
1708 LIR_Opr _klass;
1709 LIR_Opr _len;
1710 LIR_Opr _tmp1;
1711 LIR_Opr _tmp2;
1712 LIR_Opr _tmp3;
1713 LIR_Opr _tmp4;
1714 BasicType _type;
1715 CodeStub* _stub;
1716
1717 public:
1718 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)
1719 : LIR_Op(lir_alloc_array, result, NULL)
1720 , _klass(klass)
1721 , _len(len)
1722 , _tmp1(t1)
1723 , _tmp2(t2)
1724 , _tmp3(t3)
1725 , _tmp4(t4)
1726 , _type(type)
1727 , _stub(stub) {}
1728
1729 LIR_Opr klass() const { return _klass; }
1730 LIR_Opr len() const { return _len; }
1731 LIR_Opr obj() const { return result_opr(); }
1732 LIR_Opr tmp1() const { return _tmp1; }
1733 LIR_Opr tmp2() const { return _tmp2; }
1734 LIR_Opr tmp3() const { return _tmp3; }
1735 LIR_Opr tmp4() const { return _tmp4; }
1736 BasicType type() const { return _type; }
1737 CodeStub* stub() const { return _stub; }
1738
1739 virtual void emit_code(LIR_Assembler* masm);
1740 virtual LIR_OpAllocArray * as_OpAllocArray () { return this; }
1741 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1742 };
1743
1744
1745 class LIR_Op3: public LIR_Op {
1746 friend class LIR_OpVisitState;
1747
1748 private:
1749 LIR_Opr _opr1;
1750 LIR_Opr _opr2;
1751 LIR_Opr _opr3;
1752 public:
1753 LIR_Op3(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr opr3, LIR_Opr result, CodeEmitInfo* info = NULL)
1754 : LIR_Op(code, result, info)
1755 , _opr1(opr1)
1756 , _opr2(opr2)
1757 , _opr3(opr3) { assert(is_in_range(code, begin_op3, end_op3), "code check"); }
1758 LIR_Opr in_opr1() const { return _opr1; }
1759 LIR_Opr in_opr2() const { return _opr2; }
1760 LIR_Opr in_opr3() const { return _opr3; }
1761
1762 virtual void emit_code(LIR_Assembler* masm);
1763 virtual LIR_Op3* as_Op3() { return this; }
1764 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1765 };
1766
1767
1768 //--------------------------------
1769 class LabelObj: public CompilationResourceObj {
1770 private:
1771 Label _label;
1772 public:
1773 LabelObj() {}
1774 Label* label() { return &_label; }
1775 };
1776
1777
1778 class LIR_OpLock: public LIR_Op {
1779 friend class LIR_OpVisitState;
1780
1781 private:
1782 LIR_Opr _hdr;
1783 LIR_Opr _obj;
1784 LIR_Opr _lock;
1785 LIR_Opr _scratch;
1786 CodeStub* _stub;
1787 public:
1788 LIR_OpLock(LIR_Code code, LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info)
1789 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1790 , _hdr(hdr)
1791 , _obj(obj)
1792 , _lock(lock)
1793 , _scratch(scratch)
1794 , _stub(stub) {}
1795
1796 LIR_Opr hdr_opr() const { return _hdr; }
1797 LIR_Opr obj_opr() const { return _obj; }
1798 LIR_Opr lock_opr() const { return _lock; }
1799 LIR_Opr scratch_opr() const { return _scratch; }
1800 CodeStub* stub() const { return _stub; }
1801
1802 virtual void emit_code(LIR_Assembler* masm);
1803 virtual LIR_OpLock* as_OpLock() { return this; }
1804 void print_instr(outputStream* out) const PRODUCT_RETURN;
1805 };
1806
1807
1808 class LIR_OpDelay: public LIR_Op {
1809 friend class LIR_OpVisitState;
1810
1811 private:
1812 LIR_Op* _op;
1813
1814 public:
1815 LIR_OpDelay(LIR_Op* op, CodeEmitInfo* info):
1816 LIR_Op(lir_delay_slot, LIR_OprFact::illegalOpr, info),
1817 _op(op) {
1818 assert(op->code() == lir_nop, "should be filling with nops");
1819 }
1820 virtual void emit_code(LIR_Assembler* masm);
1821 virtual LIR_OpDelay* as_OpDelay() { return this; }
1822 void print_instr(outputStream* out) const PRODUCT_RETURN;
1823 LIR_Op* delay_op() const { return _op; }
1824 CodeEmitInfo* call_info() const { return info(); }
1825 };
1826
1827 #ifdef ASSERT
1828 // LIR_OpAssert
1829 class LIR_OpAssert : public LIR_Op2 {
1830 friend class LIR_OpVisitState;
1831
1832 private:
1833 const char* _msg;
1834 bool _halt;
1835
1836 public:
1837 LIR_OpAssert(LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, const char* msg, bool halt)
1838 : LIR_Op2(lir_assert, condition, opr1, opr2)
1839 , _msg(msg)
1840 , _halt(halt) {
1841 }
1842
1843 const char* msg() const { return _msg; }
1844 bool halt() const { return _halt; }
1845
1846 virtual void emit_code(LIR_Assembler* masm);
1847 virtual LIR_OpAssert* as_OpAssert() { return this; }
1848 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1849 };
1850 #endif
1851
1852 // LIR_OpCompareAndSwap
1853 class LIR_OpCompareAndSwap : public LIR_Op {
1854 friend class LIR_OpVisitState;
1855
1856 private:
1857 LIR_Opr _addr;
1858 LIR_Opr _cmp_value;
1859 LIR_Opr _new_value;
1860 LIR_Opr _tmp1;
1861 LIR_Opr _tmp2;
1862
1863 public:
1864 LIR_OpCompareAndSwap(LIR_Code code, LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1865 LIR_Opr t1, LIR_Opr t2, LIR_Opr result)
1866 : LIR_Op(code, result, NULL) // no result, no info
1867 , _addr(addr)
1868 , _cmp_value(cmp_value)
1869 , _new_value(new_value)
1870 , _tmp1(t1)
1871 , _tmp2(t2) { }
1872
1873 LIR_Opr addr() const { return _addr; }
1874 LIR_Opr cmp_value() const { return _cmp_value; }
1875 LIR_Opr new_value() const { return _new_value; }
1876 LIR_Opr tmp1() const { return _tmp1; }
1877 LIR_Opr tmp2() const { return _tmp2; }
1878
1879 virtual void emit_code(LIR_Assembler* masm);
1880 virtual LIR_OpCompareAndSwap * as_OpCompareAndSwap () { return this; }
1881 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1882 };
1883
1884 // LIR_OpProfileCall
1885 class LIR_OpProfileCall : public LIR_Op {
1886 friend class LIR_OpVisitState;
1887
1888 private:
1889 ciMethod* _profiled_method;
1890 int _profiled_bci;
1891 ciMethod* _profiled_callee;
1892 LIR_Opr _mdo;
1893 LIR_Opr _recv;
1894 LIR_Opr _tmp1;
1895 ciKlass* _known_holder;
1896
1897 public:
1898 // Destroys recv
1899 LIR_OpProfileCall(ciMethod* profiled_method, int profiled_bci, ciMethod* profiled_callee, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* known_holder)
1900 : LIR_Op(lir_profile_call, LIR_OprFact::illegalOpr, NULL) // no result, no info
1901 , _profiled_method(profiled_method)
1902 , _profiled_bci(profiled_bci)
1903 , _profiled_callee(profiled_callee)
1904 , _mdo(mdo)
1905 , _recv(recv)
1906 , _tmp1(t1)
1907 , _known_holder(known_holder) { }
1908
1909 ciMethod* profiled_method() const { return _profiled_method; }
1910 int profiled_bci() const { return _profiled_bci; }
1911 ciMethod* profiled_callee() const { return _profiled_callee; }
1912 LIR_Opr mdo() const { return _mdo; }
1913 LIR_Opr recv() const { return _recv; }
1914 LIR_Opr tmp1() const { return _tmp1; }
1915 ciKlass* known_holder() const { return _known_holder; }
1916
1917 virtual void emit_code(LIR_Assembler* masm);
1918 virtual LIR_OpProfileCall* as_OpProfileCall() { return this; }
1919 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1920 bool should_profile_receiver_type() const {
1921 bool callee_is_static = _profiled_callee->is_loaded() && _profiled_callee->is_static();
1922 Bytecodes::Code bc = _profiled_method->java_code_at_bci(_profiled_bci);
1923 bool call_is_virtual = (bc == Bytecodes::_invokevirtual && !_profiled_callee->can_be_statically_bound()) || bc == Bytecodes::_invokeinterface;
1924 return C1ProfileVirtualCalls && call_is_virtual && !callee_is_static;
1925 }
1926 };
1927
1928 // LIR_OpProfileType
1929 class LIR_OpProfileType : public LIR_Op {
1930 friend class LIR_OpVisitState;
1931
1932 private:
1933 LIR_Opr _mdp;
1934 LIR_Opr _obj;
1935 LIR_Opr _tmp;
1936 ciKlass* _exact_klass; // non NULL if we know the klass statically (no need to load it from _obj)
1937 intptr_t _current_klass; // what the profiling currently reports
1938 bool _not_null; // true if we know statically that _obj cannot be null
1939 bool _no_conflict; // true if we're profling parameters, _exact_klass is not NULL and we know
1940 // _exact_klass it the only possible type for this parameter in any context.
1941
1942 public:
1943 // Destroys recv
1944 LIR_OpProfileType(LIR_Opr mdp, LIR_Opr obj, ciKlass* exact_klass, intptr_t current_klass, LIR_Opr tmp, bool not_null, bool no_conflict)
1945 : LIR_Op(lir_profile_type, LIR_OprFact::illegalOpr, NULL) // no result, no info
1946 , _mdp(mdp)
1947 , _obj(obj)
1948 , _tmp(tmp)
1949 , _exact_klass(exact_klass)
1950 , _current_klass(current_klass)
1951 , _not_null(not_null)
1952 , _no_conflict(no_conflict) { }
1953
1954 LIR_Opr mdp() const { return _mdp; }
1955 LIR_Opr obj() const { return _obj; }
1956 LIR_Opr tmp() const { return _tmp; }
1957 ciKlass* exact_klass() const { return _exact_klass; }
1958 intptr_t current_klass() const { return _current_klass; }
1959 bool not_null() const { return _not_null; }
1960 bool no_conflict() const { return _no_conflict; }
1961
1962 virtual void emit_code(LIR_Assembler* masm);
1963 virtual LIR_OpProfileType* as_OpProfileType() { return this; }
1964 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1965 };
1966
1967 class LIR_InsertionBuffer;
1968
1969 //--------------------------------LIR_List---------------------------------------------------
1970 // Maintains a list of LIR instructions (one instance of LIR_List per basic block)
1971 // The LIR instructions are appended by the LIR_List class itself;
1972 //
1973 // Notes:
1974 // - all offsets are(should be) in bytes
1975 // - local positions are specified with an offset, with offset 0 being local 0
1976
1977 class LIR_List: public CompilationResourceObj {
1978 private:
1979 LIR_OpList _operations;
1980
1981 Compilation* _compilation;
1982 #ifndef PRODUCT
1983 BlockBegin* _block;
1984 #endif
1985 #ifdef ASSERT
1986 const char * _file;
1987 int _line;
1988 #endif
1989
1990 public:
1991 void append(LIR_Op* op) {
1992 if (op->source() == NULL)
1993 op->set_source(_compilation->current_instruction());
1994 #ifndef PRODUCT
1995 if (PrintIRWithLIR) {
1996 _compilation->maybe_print_current_instruction();
1997 op->print(); tty->cr();
1998 }
1999 #endif // PRODUCT
2000
2001 _operations.append(op);
2002
2003 #ifdef ASSERT
2004 op->verify();
2005 op->set_file_and_line(_file, _line);
2006 _file = NULL;
2007 _line = 0;
2008 #endif
2009 }
2010
2011 LIR_List(Compilation* compilation, BlockBegin* block = NULL);
2012
2013 #ifdef ASSERT
2014 void set_file_and_line(const char * file, int line);
2015 #endif
2016
2017 //---------- accessors ---------------
2018 LIR_OpList* instructions_list() { return &_operations; }
2019 int length() const { return _operations.length(); }
2020 LIR_Op* at(int i) const { return _operations.at(i); }
2021
2022 NOT_PRODUCT(BlockBegin* block() const { return _block; });
2023
2024 // insert LIR_Ops in buffer to right places in LIR_List
2025 void append(LIR_InsertionBuffer* buffer);
2026
2027 //---------- mutators ---------------
2028 void insert_before(int i, LIR_List* op_list) { _operations.insert_before(i, op_list->instructions_list()); }
2029 void insert_before(int i, LIR_Op* op) { _operations.insert_before(i, op); }
2030 void remove_at(int i) { _operations.remove_at(i); }
2031
2032 //---------- printing -------------
2033 void print_instructions() PRODUCT_RETURN;
2034
2035
2036 //---------- instructions -------------
2037 void call_opt_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2038 address dest, LIR_OprList* arguments,
2039 CodeEmitInfo* info) {
2040 append(new LIR_OpJavaCall(lir_optvirtual_call, method, receiver, result, dest, arguments, info));
2041 }
2042 void call_static(ciMethod* method, LIR_Opr result,
2043 address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
2044 append(new LIR_OpJavaCall(lir_static_call, method, LIR_OprFact::illegalOpr, result, dest, arguments, info));
2045 }
2046 void call_icvirtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2047 address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
2048 append(new LIR_OpJavaCall(lir_icvirtual_call, method, receiver, result, dest, arguments, info));
2049 }
2050 void call_dynamic(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2051 address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
2052 append(new LIR_OpJavaCall(lir_dynamic_call, method, receiver, result, dest, arguments, info));
2053 }
2054
2055 void get_thread(LIR_Opr result) { append(new LIR_Op0(lir_get_thread, result)); }
2056 void membar() { append(new LIR_Op0(lir_membar)); }
2057 void membar_acquire() { append(new LIR_Op0(lir_membar_acquire)); }
2058 void membar_release() { append(new LIR_Op0(lir_membar_release)); }
2059 void membar_loadload() { append(new LIR_Op0(lir_membar_loadload)); }
2060 void membar_storestore() { append(new LIR_Op0(lir_membar_storestore)); }
2061 void membar_loadstore() { append(new LIR_Op0(lir_membar_loadstore)); }
2062 void membar_storeload() { append(new LIR_Op0(lir_membar_storeload)); }
2063
2064 void nop() { append(new LIR_Op0(lir_nop)); }
2065
2066 void std_entry(LIR_Opr receiver) { append(new LIR_Op0(lir_std_entry, receiver)); }
2067 void osr_entry(LIR_Opr osrPointer) { append(new LIR_Op0(lir_osr_entry, osrPointer)); }
2068
2069 void on_spin_wait() { append(new LIR_Op0(lir_on_spin_wait)); }
2070
2071 void branch_destination(Label* lbl) { append(new LIR_OpLabel(lbl)); }
2072
2073 void leal(LIR_Opr from, LIR_Opr result_reg, LIR_PatchCode patch_code = lir_patch_none, CodeEmitInfo* info = NULL) { append(new LIR_Op1(lir_leal, from, result_reg, T_ILLEGAL, patch_code, info)); }
2074
2075 // result is a stack location for old backend and vreg for UseLinearScan
2076 // stack_loc_temp is an illegal register for old backend
2077 void roundfp(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result) { append(new LIR_OpRoundFP(reg, stack_loc_temp, result)); }
2078 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)); }
2079 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)); }
2080 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)); }
2081 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)); }
2082 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)); }
2083 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)); }
2084 void move_wide(LIR_Address* src, LIR_Opr dst, CodeEmitInfo* info = NULL) {
2085 if (UseCompressedOops) {
2086 append(new LIR_Op1(lir_move, LIR_OprFact::address(src), dst, src->type(), lir_patch_none, info, lir_move_wide));
2087 } else {
2088 move(src, dst, info);
2089 }
2090 }
2091 void move_wide(LIR_Opr src, LIR_Address* dst, CodeEmitInfo* info = NULL) {
2092 if (UseCompressedOops) {
2093 append(new LIR_Op1(lir_move, src, LIR_OprFact::address(dst), dst->type(), lir_patch_none, info, lir_move_wide));
2094 } else {
2095 move(src, dst, info);
2096 }
2097 }
2098 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)); }
2099
2100 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)); }
2101 void oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info);
2102
2103 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)); }
2104 void klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info);
2105
2106 void safepoint(LIR_Opr tmp, CodeEmitInfo* info) { append(new LIR_Op1(lir_safepoint, tmp, info)); }
2107 void return_op(LIR_Opr result) { append(new LIR_OpReturn(result)); }
2108
2109 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)); }
2110
2111 void logical_and (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_and, left, right, dst)); }
2112 void logical_or (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_or, left, right, dst)); }
2113 void logical_xor (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_xor, left, right, dst)); }
2114
2115 void null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null = false);
2116 void throw_exception(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) {
2117 append(new LIR_Op2(lir_throw, exceptionPC, exceptionOop, LIR_OprFact::illegalOpr, info));
2118 }
2119 void unwind_exception(LIR_Opr exceptionOop) {
2120 append(new LIR_Op1(lir_unwind, exceptionOop));
2121 }
2122
2123 void push(LIR_Opr opr) { append(new LIR_Op1(lir_push, opr)); }
2124 void pop(LIR_Opr reg) { append(new LIR_Op1(lir_pop, reg)); }
2125
2126 void cmp(LIR_Condition condition, LIR_Opr left, LIR_Opr right, CodeEmitInfo* info = NULL) {
2127 append(new LIR_Op2(lir_cmp, condition, left, right, info));
2128 }
2129 void cmp(LIR_Condition condition, LIR_Opr left, int right, CodeEmitInfo* info = NULL) {
2130 cmp(condition, left, LIR_OprFact::intConst(right), info);
2131 }
2132
2133 void cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info);
2134 void cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info);
2135
2136 void cmove(LIR_Condition condition, LIR_Opr src1, LIR_Opr src2, LIR_Opr dst, BasicType type) {
2137 append(new LIR_Op2(lir_cmove, condition, src1, src2, dst, type));
2138 }
2139
2140 void cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
2141 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr);
2142 void cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
2143 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr);
2144 void cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
2145 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr);
2146
2147 void abs (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_abs , from, tmp, to)); }
2148 void negate(LIR_Opr from, LIR_Opr to, LIR_Opr tmp = LIR_OprFact::illegalOpr) { append(new LIR_Op2(lir_neg, from, tmp, to)); }
2149 void sqrt(LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_sqrt, from, tmp, to)); }
2150 void fmad(LIR_Opr from, LIR_Opr from1, LIR_Opr from2, LIR_Opr to) { append(new LIR_Op3(lir_fmad, from, from1, from2, to)); }
2151 void fmaf(LIR_Opr from, LIR_Opr from1, LIR_Opr from2, LIR_Opr to) { append(new LIR_Op3(lir_fmaf, from, from1, from2, to)); }
2152 void log10 (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_log10, from, LIR_OprFact::illegalOpr, to, tmp)); }
2153 void tan (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_Op2(lir_tan , from, tmp1, to, tmp2)); }
2154
2155 void add (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_add, left, right, res)); }
2156 void sub (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_sub, left, right, res, info)); }
2157 void mul (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_mul, left, right, res)); }
2158 void mul (LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_mul, left, right, res, tmp)); }
2159 void div (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_div, left, right, res, info)); }
2160 void div (LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_div, left, right, res, tmp)); }
2161 void rem (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_rem, left, right, res, info)); }
2162
2163 void volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2164 void volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code);
2165
2166 void load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none);
2167
2168 void store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2169 void store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2170 void store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none);
2171 void volatile_store_mem_reg(LIR_Opr src, LIR_Address* address, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2172 void volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code);
2173
2174 void idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2175 void idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2176 void irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2177 void irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2178
2179 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);
2180 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);
2181
2182 // jump is an unconditional branch
2183 void jump(BlockBegin* block) {
2184 append(new LIR_OpBranch(lir_cond_always, block));
2185 }
2186 void jump(CodeStub* stub) {
2187 append(new LIR_OpBranch(lir_cond_always, stub));
2188 }
2189 void branch(LIR_Condition cond, Label* lbl) {
2190 append(new LIR_OpBranch(cond, lbl));
2191 }
2192 // Should not be used for fp comparisons
2193 void branch(LIR_Condition cond, BlockBegin* block) {
2194 append(new LIR_OpBranch(cond, block));
2195 }
2196 // Should not be used for fp comparisons
2197 void branch(LIR_Condition cond, CodeStub* stub) {
2198 append(new LIR_OpBranch(cond, stub));
2199 }
2200 // Should only be used for fp comparisons
2201 void branch(LIR_Condition cond, BlockBegin* block, BlockBegin* unordered) {
2202 append(new LIR_OpBranch(cond, block, unordered));
2203 }
2204
2205 void shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
2206 void shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
2207 void unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
2208
2209 void shift_left(LIR_Opr value, int count, LIR_Opr dst) { shift_left(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2210 void shift_right(LIR_Opr value, int count, LIR_Opr dst) { shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2211 void unsigned_shift_right(LIR_Opr value, int count, LIR_Opr dst) { unsigned_shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2212
2213 void lcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_cmp_l2i, left, right, dst)); }
2214 void fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less);
2215
2216 void call_runtime_leaf(address routine, LIR_Opr tmp, LIR_Opr result, LIR_OprList* arguments) {
2217 append(new LIR_OpRTCall(routine, tmp, result, arguments));
2218 }
2219
2220 void call_runtime(address routine, LIR_Opr tmp, LIR_Opr result,
2221 LIR_OprList* arguments, CodeEmitInfo* info) {
2222 append(new LIR_OpRTCall(routine, tmp, result, arguments, info));
2223 }
2224
2225 void load_stack_address_monitor(int monitor_ix, LIR_Opr dst) { append(new LIR_Op1(lir_monaddr, LIR_OprFact::intConst(monitor_ix), dst)); }
2226 void unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub);
2227 void lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info);
2228
2229 void breakpoint() { append(new LIR_Op0(lir_breakpoint)); }
2230
2231 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)); }
2232
2233 void update_crc32(LIR_Opr crc, LIR_Opr val, LIR_Opr res) { append(new LIR_OpUpdateCRC32(crc, val, res)); }
2234
2235 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);
2236 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);
2237
2238 void checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
2239 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
2240 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
2241 ciMethod* profiled_method, int profiled_bci);
2242 // MethodData* profiling
2243 void profile_call(ciMethod* method, int bci, ciMethod* callee, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* cha_klass) {
2244 append(new LIR_OpProfileCall(method, bci, callee, mdo, recv, t1, cha_klass));
2245 }
2246 void profile_type(LIR_Address* mdp, LIR_Opr obj, ciKlass* exact_klass, intptr_t current_klass, LIR_Opr tmp, bool not_null, bool no_conflict) {
2247 append(new LIR_OpProfileType(LIR_OprFact::address(mdp), obj, exact_klass, current_klass, tmp, not_null, no_conflict));
2248 }
2249
2250 void xadd(LIR_Opr src, LIR_Opr add, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_xadd, src, add, res, tmp)); }
2251 void xchg(LIR_Opr src, LIR_Opr set, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_xchg, src, set, res, tmp)); }
2252 #ifdef ASSERT
2253 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)); }
2254 #endif
2255 };
2256
2257 void print_LIR(BlockList* blocks);
2258
2259 class LIR_InsertionBuffer : public CompilationResourceObj {
2260 private:
2261 LIR_List* _lir; // the lir list where ops of this buffer should be inserted later (NULL when uninitialized)
2262
2263 // list of insertion points. index and count are stored alternately:
2264 // _index_and_count[i * 2]: the index into lir list where "count" ops should be inserted
2265 // _index_and_count[i * 2 + 1]: the number of ops to be inserted at index
2266 intStack _index_and_count;
2267
2268 // the LIR_Ops to be inserted
2269 LIR_OpList _ops;
2270
2271 void append_new(int index, int count) { _index_and_count.append(index); _index_and_count.append(count); }
2272 void set_index_at(int i, int value) { _index_and_count.at_put((i << 1), value); }
2273 void set_count_at(int i, int value) { _index_and_count.at_put((i << 1) + 1, value); }
2274
2275 #ifdef ASSERT
2276 void verify();
2277 #endif
2278 public:
2279 LIR_InsertionBuffer() : _lir(NULL), _index_and_count(8), _ops(8) { }
2280
2281 // must be called before using the insertion buffer
2282 void init(LIR_List* lir) { assert(!initialized(), "already initialized"); _lir = lir; _index_and_count.clear(); _ops.clear(); }
2283 bool initialized() const { return _lir != NULL; }
2284 // called automatically when the buffer is appended to the LIR_List
2285 void finish() { _lir = NULL; }
2286
2287 // accessors
2288 LIR_List* lir_list() const { return _lir; }
2289 int number_of_insertion_points() const { return _index_and_count.length() >> 1; }
2290 int index_at(int i) const { return _index_and_count.at((i << 1)); }
2291 int count_at(int i) const { return _index_and_count.at((i << 1) + 1); }
2292
2293 int number_of_ops() const { return _ops.length(); }
2294 LIR_Op* op_at(int i) const { return _ops.at(i); }
2295
2296 // append an instruction to the buffer
2297 void append(int index, LIR_Op* op);
2298
2299 // instruction
2300 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)); }
2301 };
2302
2303
2304 //
2305 // LIR_OpVisitState is used for manipulating LIR_Ops in an abstract way.
2306 // Calling a LIR_Op's visit function with a LIR_OpVisitState causes
2307 // information about the input, output and temporaries used by the
2308 // op to be recorded. It also records whether the op has call semantics
2309 // and also records all the CodeEmitInfos used by this op.
2310 //
2311
2312
2313 class LIR_OpVisitState: public StackObj {
2314 public:
2315 typedef enum { inputMode, firstMode = inputMode, tempMode, outputMode, numModes, invalidMode = -1 } OprMode;
2316
2317 enum {
2318 maxNumberOfOperands = 21,
2319 maxNumberOfInfos = 4
2320 };
2321
2322 private:
2323 LIR_Op* _op;
2324
2325 // optimization: the operands and infos are not stored in a variable-length
2326 // list, but in a fixed-size array to save time of size checks and resizing
2327 int _oprs_len[numModes];
2328 LIR_Opr* _oprs_new[numModes][maxNumberOfOperands];
2329 int _info_len;
2330 CodeEmitInfo* _info_new[maxNumberOfInfos];
2331
2332 bool _has_call;
2333 bool _has_slow_case;
2334
2335
2336 // only include register operands
2337 // addresses are decomposed to the base and index registers
2338 // constants and stack operands are ignored
2339 void append(LIR_Opr& opr, OprMode mode) {
2340 assert(opr->is_valid(), "should not call this otherwise");
2341 assert(mode >= 0 && mode < numModes, "bad mode");
2342
2343 if (opr->is_register()) {
2344 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
2345 _oprs_new[mode][_oprs_len[mode]++] = &opr;
2346
2347 } else if (opr->is_pointer()) {
2348 LIR_Address* address = opr->as_address_ptr();
2349 if (address != NULL) {
2350 // special handling for addresses: add base and index register of the address
2351 // both are always input operands or temp if we want to extend
2352 // their liveness!
2353 if (mode == outputMode) {
2354 mode = inputMode;
2355 }
2356 assert (mode == inputMode || mode == tempMode, "input or temp only for addresses");
2357 if (address->_base->is_valid()) {
2358 assert(address->_base->is_register(), "must be");
2359 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
2360 _oprs_new[mode][_oprs_len[mode]++] = &address->_base;
2361 }
2362 if (address->_index->is_valid()) {
2363 assert(address->_index->is_register(), "must be");
2364 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
2365 _oprs_new[mode][_oprs_len[mode]++] = &address->_index;
2366 }
2367
2368 } else {
2369 assert(opr->is_constant(), "constant operands are not processed");
2370 }
2371 } else {
2372 assert(opr->is_stack(), "stack operands are not processed");
2373 }
2374 }
2375
2376 void append(CodeEmitInfo* info) {
2377 assert(info != NULL, "should not call this otherwise");
2378 assert(_info_len < maxNumberOfInfos, "array overflow");
2379 _info_new[_info_len++] = info;
2380 }
2381
2382 public:
2383 LIR_OpVisitState() { reset(); }
2384
2385 LIR_Op* op() const { return _op; }
2386 void set_op(LIR_Op* op) { reset(); _op = op; }
2387
2388 bool has_call() const { return _has_call; }
2389 bool has_slow_case() const { return _has_slow_case; }
2390
2391 void reset() {
2392 _op = NULL;
2393 _has_call = false;
2394 _has_slow_case = false;
2395
2396 _oprs_len[inputMode] = 0;
2397 _oprs_len[tempMode] = 0;
2398 _oprs_len[outputMode] = 0;
2399 _info_len = 0;
2400 }
2401
2402
2403 int opr_count(OprMode mode) const {
2404 assert(mode >= 0 && mode < numModes, "bad mode");
2405 return _oprs_len[mode];
2406 }
2407
2408 LIR_Opr opr_at(OprMode mode, int index) const {
2409 assert(mode >= 0 && mode < numModes, "bad mode");
2410 assert(index >= 0 && index < _oprs_len[mode], "index out of bound");
2411 return *_oprs_new[mode][index];
2412 }
2413
2414 void set_opr_at(OprMode mode, int index, LIR_Opr opr) const {
2415 assert(mode >= 0 && mode < numModes, "bad mode");
2416 assert(index >= 0 && index < _oprs_len[mode], "index out of bound");
2417 *_oprs_new[mode][index] = opr;
2418 }
2419
2420 int info_count() const {
2421 return _info_len;
2422 }
2423
2424 CodeEmitInfo* info_at(int index) const {
2425 assert(index < _info_len, "index out of bounds");
2426 return _info_new[index];
2427 }
2428
2429 XHandlers* all_xhandler();
2430
2431 // collects all register operands of the instruction
2432 void visit(LIR_Op* op);
2433
2434 #ifdef ASSERT
2435 // check that an operation has no operands
2436 bool no_operands(LIR_Op* op);
2437 #endif
2438
2439 // LIR_Op visitor functions use these to fill in the state
2440 void do_input(LIR_Opr& opr) { append(opr, LIR_OpVisitState::inputMode); }
2441 void do_output(LIR_Opr& opr) { append(opr, LIR_OpVisitState::outputMode); }
2442 void do_temp(LIR_Opr& opr) { append(opr, LIR_OpVisitState::tempMode); }
2443 void do_info(CodeEmitInfo* info) { append(info); }
2444
2445 void do_stub(CodeStub* stub);
2446 void do_call() { _has_call = true; }
2447 void do_slow_case() { _has_slow_case = true; }
2448 void do_slow_case(CodeEmitInfo* info) {
2449 _has_slow_case = true;
2450 append(info);
2451 }
2452 };
2453
2454
2455 inline LIR_Opr LIR_OprDesc::illegalOpr() { return LIR_OprFact::illegalOpr; };
2456
2457 #endif // SHARE_C1_C1_LIR_HPP
--- EOF ---