1 /*
2 * Copyright (c) 2000, 2023, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_C1_C1_LIR_HPP
26 #define SHARE_C1_C1_LIR_HPP
27
28 #include "c1/c1_Defs.hpp"
29 #include "c1/c1_ValueType.hpp"
30 #include "oops/method.hpp"
31 #include "utilities/globalDefinitions.hpp"
32
33 class BlockBegin;
34 class BlockList;
35 class LIR_Assembler;
36 class CodeEmitInfo;
37 class CodeStub;
38 class CodeStubList;
39 class C1SafepointPollStub;
40 class ArrayCopyStub;
41 class LIR_Op;
42 class ciType;
43 class ValueType;
44 class LIR_OpVisitState;
45 class FpuStackSim;
46
47 //---------------------------------------------------------------------
48 // LIR Operands
49 // LIR_OprPtr
50 // LIR_Const
51 // LIR_Address
52 //---------------------------------------------------------------------
53 class LIR_OprPtr;
54 class LIR_Const;
55 class LIR_Address;
56 class LIR_OprVisitor;
57 class LIR_Opr;
58
59 typedef int RegNr;
60
61 typedef GrowableArray<LIR_Opr> LIR_OprList;
62 typedef GrowableArray<LIR_Op*> LIR_OpArray;
63 typedef GrowableArray<LIR_Op*> LIR_OpList;
64
65 // define LIR_OprPtr early so LIR_Opr can refer to it
66 class LIR_OprPtr: public CompilationResourceObj {
67 public:
68 bool is_oop_pointer() const { return (type() == T_OBJECT); }
69 bool is_float_kind() const { BasicType t = type(); return (t == T_FLOAT) || (t == T_DOUBLE); }
70
71 virtual LIR_Const* as_constant() { return nullptr; }
72 virtual LIR_Address* as_address() { return nullptr; }
73 virtual BasicType type() const = 0;
74 virtual void print_value_on(outputStream* out) const = 0;
75 };
76
77
78
79 // LIR constants
80 class LIR_Const: public LIR_OprPtr {
81 private:
82 JavaValue _value;
83
84 void type_check(BasicType t) const { assert(type() == t, "type check"); }
85 void type_check(BasicType t1, BasicType t2) const { assert(type() == t1 || type() == t2, "type check"); }
86 void type_check(BasicType t1, BasicType t2, BasicType t3) const { assert(type() == t1 || type() == t2 || type() == t3, "type check"); }
87
88 public:
89 LIR_Const(jint i, bool is_address=false) { _value.set_type(is_address?T_ADDRESS:T_INT); _value.set_jint(i); }
90 LIR_Const(jlong l) { _value.set_type(T_LONG); _value.set_jlong(l); }
91 LIR_Const(jfloat f) { _value.set_type(T_FLOAT); _value.set_jfloat(f); }
92 LIR_Const(jdouble d) { _value.set_type(T_DOUBLE); _value.set_jdouble(d); }
93 LIR_Const(jobject o) { _value.set_type(T_OBJECT); _value.set_jobject(o); }
94 LIR_Const(void* p) {
95 #ifdef _LP64
96 assert(sizeof(jlong) >= sizeof(p), "too small");;
97 _value.set_type(T_LONG); _value.set_jlong((jlong)p);
98 #else
99 assert(sizeof(jint) >= sizeof(p), "too small");;
100 _value.set_type(T_INT); _value.set_jint((jint)p);
101 #endif
102 }
103 LIR_Const(Metadata* m) {
104 _value.set_type(T_METADATA);
105 #ifdef _LP64
106 _value.set_jlong((jlong)m);
107 #else
108 _value.set_jint((jint)m);
109 #endif // _LP64
110 }
111
112 virtual BasicType type() const { return _value.get_type(); }
113 virtual LIR_Const* as_constant() { return this; }
114
115 jint as_jint() const { type_check(T_INT, T_ADDRESS); return _value.get_jint(); }
116 jlong as_jlong() const { type_check(T_LONG ); return _value.get_jlong(); }
117 jfloat as_jfloat() const { type_check(T_FLOAT ); return _value.get_jfloat(); }
118 jdouble as_jdouble() const { type_check(T_DOUBLE); return _value.get_jdouble(); }
119 jobject as_jobject() const { type_check(T_OBJECT); return _value.get_jobject(); }
120 jint as_jint_lo() const { type_check(T_LONG ); return low(_value.get_jlong()); }
121 jint as_jint_hi() const { type_check(T_LONG ); return high(_value.get_jlong()); }
122
123 #ifdef _LP64
124 address as_pointer() const { type_check(T_LONG ); return (address)_value.get_jlong(); }
125 Metadata* as_metadata() const { type_check(T_METADATA); return (Metadata*)_value.get_jlong(); }
126 #else
127 address as_pointer() const { type_check(T_INT ); return (address)_value.get_jint(); }
128 Metadata* as_metadata() const { type_check(T_METADATA); return (Metadata*)_value.get_jint(); }
129 #endif
130
131
132 jint as_jint_bits() const { type_check(T_FLOAT, T_INT, T_ADDRESS); return _value.get_jint(); }
133 jint as_jint_lo_bits() const {
134 if (type() == T_DOUBLE) {
135 return low(jlong_cast(_value.get_jdouble()));
136 } else {
137 return as_jint_lo();
138 }
139 }
140 jint as_jint_hi_bits() const {
141 if (type() == T_DOUBLE) {
142 return high(jlong_cast(_value.get_jdouble()));
143 } else {
144 return as_jint_hi();
145 }
146 }
147 jlong as_jlong_bits() const {
148 if (type() == T_DOUBLE) {
149 return jlong_cast(_value.get_jdouble());
150 } else {
151 return as_jlong();
152 }
153 }
154
155 virtual void print_value_on(outputStream* out) const PRODUCT_RETURN;
156
157
158 bool is_zero_float() {
159 jfloat f = as_jfloat();
160 jfloat ok = 0.0f;
161 return jint_cast(f) == jint_cast(ok);
162 }
163
164 bool is_one_float() {
165 jfloat f = as_jfloat();
166 return !g_isnan(f) && g_isfinite(f) && f == 1.0;
167 }
168
169 bool is_zero_double() {
170 jdouble d = as_jdouble();
171 jdouble ok = 0.0;
172 return jlong_cast(d) == jlong_cast(ok);
173 }
174
175 bool is_one_double() {
176 jdouble d = as_jdouble();
177 return !g_isnan(d) && g_isfinite(d) && d == 1.0;
178 }
179 };
180
181
182 //---------------------LIR Operand descriptor------------------------------------
183 //
184 // The class LIR_Opr represents a LIR instruction operand;
185 // it can be a register (ALU/FPU), stack location or a constant;
186 // Constants and addresses are represented as resource area allocated
187 // structures (see above), and pointers are stored in the _value field (cast to
188 // an intptr_t).
189 // Registers and stack locations are represented inline as integers.
190 // (see value function).
191
192 // Previously, this class was derived from CompilationResourceObj.
193 // However, deriving from any of the "Obj" types in allocation.hpp seems
194 // detrimental, since in some build modes it would add a vtable to this class,
195 // which make it no longer be a 1-word trivially-copyable wrapper object,
196 // which is the entire point of it.
197
198 class LIR_Opr {
199 public:
200 // value structure:
201 // data other-non-data opr-type opr-kind
202 // +-------------------+--------------+-------+-----+
203 // [max...............................|6 5 4 3|2 1 0]
204 // ^
205 // is_pointer bit
206 //
207 // lowest bit cleared, means it is a structure pointer
208 // we need 4 bits to represent types
209
210 private:
211 friend class LIR_OprFact;
212
213 intptr_t _value;
214 // Conversion
215 intptr_t value() const { return _value; }
216
217 bool check_value_mask(intptr_t mask, intptr_t masked_value) const {
218 return (value() & mask) == masked_value;
219 }
220
221 enum OprKind {
222 pointer_value = 0
223 , stack_value = 1
224 , cpu_register = 3
225 , fpu_register = 5
226 , illegal_value = 7
227 };
228
229 enum OprBits {
230 pointer_bits = 1
231 , kind_bits = 3
232 , type_bits = 4
233 , size_bits = 2
234 , destroys_bits = 1
235 , virtual_bits = 1
236 , is_xmm_bits = 1
237 , last_use_bits = 1
238 , is_fpu_stack_offset_bits = 1 // used in assertion checking on x86 for FPU stack slot allocation
239 , non_data_bits = kind_bits + type_bits + size_bits + destroys_bits + virtual_bits
240 + is_xmm_bits + last_use_bits + is_fpu_stack_offset_bits
241 , data_bits = BitsPerInt - non_data_bits
242 , reg_bits = data_bits / 2 // for two registers in one value encoding
243 };
244
245 enum OprShift : uintptr_t {
246 kind_shift = 0
247 , type_shift = kind_shift + kind_bits
248 , size_shift = type_shift + type_bits
249 , destroys_shift = size_shift + size_bits
250 , last_use_shift = destroys_shift + destroys_bits
251 , is_fpu_stack_offset_shift = last_use_shift + last_use_bits
252 , virtual_shift = is_fpu_stack_offset_shift + is_fpu_stack_offset_bits
253 , is_xmm_shift = virtual_shift + virtual_bits
254 , data_shift = is_xmm_shift + is_xmm_bits
255 , reg1_shift = data_shift
256 , reg2_shift = data_shift + reg_bits
257
258 };
259
260 enum OprSize {
261 single_size = 0 << size_shift
262 , double_size = 1 << size_shift
263 };
264
265 enum OprMask {
266 kind_mask = right_n_bits(kind_bits)
267 , type_mask = right_n_bits(type_bits) << type_shift
268 , size_mask = right_n_bits(size_bits) << size_shift
269 , last_use_mask = right_n_bits(last_use_bits) << last_use_shift
270 , is_fpu_stack_offset_mask = right_n_bits(is_fpu_stack_offset_bits) << is_fpu_stack_offset_shift
271 , virtual_mask = right_n_bits(virtual_bits) << virtual_shift
272 , is_xmm_mask = right_n_bits(is_xmm_bits) << is_xmm_shift
273 , pointer_mask = right_n_bits(pointer_bits)
274 , lower_reg_mask = right_n_bits(reg_bits)
275 , no_type_mask = (int)(~(type_mask | last_use_mask | is_fpu_stack_offset_mask))
276 };
277
278 uint32_t data() const { return (uint32_t)value() >> data_shift; }
279 int lo_reg_half() const { return data() & lower_reg_mask; }
280 int hi_reg_half() const { return (data() >> reg_bits) & lower_reg_mask; }
281 OprKind kind_field() const { return (OprKind)(value() & kind_mask); }
282 OprSize size_field() const { return (OprSize)(value() & size_mask); }
283
284 static char type_char(BasicType t);
285
286 public:
287 LIR_Opr() : _value(0) {}
288 LIR_Opr(intptr_t val) : _value(val) {}
289 LIR_Opr(LIR_OprPtr *val) : _value(reinterpret_cast<intptr_t>(val)) {}
290 bool operator==(const LIR_Opr &other) const { return _value == other._value; }
291 bool operator!=(const LIR_Opr &other) const { return _value != other._value; }
292 explicit operator bool() const { return _value != 0; }
293
294 // UGLY HACK: make this value object look like a pointer (to itself). This
295 // operator overload should be removed, and all callers updated from
296 // `opr->fn()` to `opr.fn()`.
297 const LIR_Opr* operator->() const { return this; }
298 LIR_Opr* operator->() { return this; }
299
300 enum {
301 vreg_base = ConcreteRegisterImpl::number_of_registers,
302 data_max = (1 << data_bits) - 1, // max unsigned value for data bit field
303 vreg_limit = 10000, // choose a reasonable limit,
304 vreg_max = MIN2(vreg_limit, data_max) // and make sure if fits in the bit field
305 };
306
307 static inline LIR_Opr illegalOpr();
308 static inline LIR_Opr nullOpr();
309
310 enum OprType {
311 unknown_type = 0 << type_shift // means: not set (catch uninitialized types)
312 , int_type = 1 << type_shift
313 , long_type = 2 << type_shift
314 , object_type = 3 << type_shift
315 , address_type = 4 << type_shift
316 , float_type = 5 << type_shift
317 , double_type = 6 << type_shift
318 , metadata_type = 7 << type_shift
319 };
320 friend OprType as_OprType(BasicType t);
321 friend BasicType as_BasicType(OprType t);
322
323 OprType type_field_valid() const { assert(is_register() || is_stack(), "should not be called otherwise"); return (OprType)(value() & type_mask); }
324 OprType type_field() const { return is_illegal() ? unknown_type : (OprType)(value() & type_mask); }
325
326 static OprSize size_for(BasicType t) {
327 switch (t) {
328 case T_LONG:
329 case T_DOUBLE:
330 return double_size;
331 break;
332
333 case T_FLOAT:
334 case T_BOOLEAN:
335 case T_CHAR:
336 case T_BYTE:
337 case T_SHORT:
338 case T_INT:
339 case T_ADDRESS:
340 case T_OBJECT:
341 case T_ARRAY:
342 case T_METADATA:
343 return single_size;
344 break;
345
346 default:
347 ShouldNotReachHere();
348 return single_size;
349 }
350 }
351
352
353 void validate_type() const PRODUCT_RETURN;
354
355 BasicType type() const {
356 if (is_pointer()) {
357 return pointer()->type();
358 }
359 return as_BasicType(type_field());
360 }
361
362
363 ValueType* value_type() const { return as_ValueType(type()); }
364
365 char type_char() const { return type_char((is_pointer()) ? pointer()->type() : type()); }
366
367 bool is_equal(LIR_Opr opr) const { return *this == opr; }
368 // checks whether types are same
369 bool is_same_type(LIR_Opr opr) const {
370 assert(type_field() != unknown_type &&
371 opr->type_field() != unknown_type, "shouldn't see unknown_type");
372 return type_field() == opr->type_field();
373 }
374 bool is_same_register(LIR_Opr opr) {
375 return (is_register() && opr->is_register() &&
376 kind_field() == opr->kind_field() &&
377 (value() & no_type_mask) == (opr->value() & no_type_mask));
378 }
379
380 bool is_pointer() const { return check_value_mask(pointer_mask, pointer_value); }
381 bool is_illegal() const { return kind_field() == illegal_value; }
382 bool is_valid() const { return kind_field() != illegal_value; }
383
384 bool is_register() const { return is_cpu_register() || is_fpu_register(); }
385 bool is_virtual() const { return is_virtual_cpu() || is_virtual_fpu(); }
386
387 bool is_constant() const { return is_pointer() && pointer()->as_constant() != nullptr; }
388 bool is_address() const { return is_pointer() && pointer()->as_address() != nullptr; }
389
390 bool is_float_kind() const { return is_pointer() ? pointer()->is_float_kind() : (kind_field() == fpu_register); }
391 bool is_oop() const;
392
393 // semantic for fpu- and xmm-registers:
394 // * is_float and is_double return true for xmm_registers
395 // (so is_single_fpu and is_single_xmm are true)
396 // * So you must always check for is_???_xmm prior to is_???_fpu to
397 // distinguish between fpu- and xmm-registers
398
399 bool is_stack() const { validate_type(); return check_value_mask(kind_mask, stack_value); }
400 bool is_single_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | single_size); }
401 bool is_double_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | double_size); }
402
403 bool is_cpu_register() const { validate_type(); return check_value_mask(kind_mask, cpu_register); }
404 bool is_virtual_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register | virtual_mask); }
405 bool is_fixed_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register); }
406 bool is_single_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | single_size); }
407 bool is_double_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | double_size); }
408
409 bool is_fpu_register() const { validate_type(); return check_value_mask(kind_mask, fpu_register); }
410 bool is_virtual_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register | virtual_mask); }
411 bool is_fixed_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register); }
412 bool is_single_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | single_size); }
413 bool is_double_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | double_size); }
414
415 bool is_xmm_register() const { validate_type(); return check_value_mask(kind_mask | is_xmm_mask, fpu_register | is_xmm_mask); }
416 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); }
417 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); }
418
419 // fast accessor functions for special bits that do not work for pointers
420 // (in this functions, the check for is_pointer() is omitted)
421 bool is_single_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, single_size); }
422 bool is_double_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, double_size); }
423 bool is_virtual_register() const { assert(is_register(), "type check"); return check_value_mask(virtual_mask, virtual_mask); }
424 bool is_oop_register() const { assert(is_register() || is_stack(), "type check"); return type_field_valid() == object_type; }
425 BasicType type_register() const { assert(is_register() || is_stack(), "type check"); return as_BasicType(type_field_valid()); }
426
427 bool is_last_use() const { assert(is_register(), "only works for registers"); return (value() & last_use_mask) != 0; }
428 bool is_fpu_stack_offset() const { assert(is_register(), "only works for registers"); return (value() & is_fpu_stack_offset_mask) != 0; }
429 LIR_Opr make_last_use() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | last_use_mask); }
430 LIR_Opr make_fpu_stack_offset() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | is_fpu_stack_offset_mask); }
431
432
433 int single_stack_ix() const { assert(is_single_stack() && !is_virtual(), "type check"); return (int)data(); }
434 int double_stack_ix() const { assert(is_double_stack() && !is_virtual(), "type check"); return (int)data(); }
435 RegNr cpu_regnr() const { assert(is_single_cpu() && !is_virtual(), "type check"); return (RegNr)data(); }
436 RegNr cpu_regnrLo() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
437 RegNr cpu_regnrHi() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
438 RegNr fpu_regnr() const { assert(is_single_fpu() && !is_virtual(), "type check"); return (RegNr)data(); }
439 RegNr fpu_regnrLo() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
440 RegNr fpu_regnrHi() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
441 RegNr xmm_regnr() const { assert(is_single_xmm() && !is_virtual(), "type check"); return (RegNr)data(); }
442 RegNr xmm_regnrLo() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
443 RegNr xmm_regnrHi() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
444 int vreg_number() const { assert(is_virtual(), "type check"); return (RegNr)data(); }
445
446 LIR_OprPtr* pointer() const { assert(_value != 0 && is_pointer(), "nullness and type check"); return (LIR_OprPtr*)_value; }
447 LIR_Const* as_constant_ptr() const { return pointer()->as_constant(); }
448 LIR_Address* as_address_ptr() const { return pointer()->as_address(); }
449
450 Register as_register() const;
451 Register as_register_lo() const;
452 Register as_register_hi() const;
453
454 Register as_pointer_register() {
455 #ifdef _LP64
456 if (is_double_cpu()) {
457 assert(as_register_lo() == as_register_hi(), "should be a single register");
458 return as_register_lo();
459 }
460 #endif
461 return as_register();
462 }
463
464 FloatRegister as_float_reg () const;
465 FloatRegister as_double_reg () const;
466 #ifdef X86
467 XMMRegister as_xmm_float_reg () const;
468 XMMRegister as_xmm_double_reg() const;
469 // for compatibility with RInfo
470 int fpu() const { return lo_reg_half(); }
471 #endif
472
473 jint as_jint() const { return as_constant_ptr()->as_jint(); }
474 jlong as_jlong() const { return as_constant_ptr()->as_jlong(); }
475 jfloat as_jfloat() const { return as_constant_ptr()->as_jfloat(); }
476 jdouble as_jdouble() const { return as_constant_ptr()->as_jdouble(); }
477 jobject as_jobject() const { return as_constant_ptr()->as_jobject(); }
478
479 void print() const PRODUCT_RETURN;
480 void print(outputStream* out) const PRODUCT_RETURN;
481 };
482
483 inline LIR_Opr::OprType as_OprType(BasicType type) {
484 switch (type) {
485 case T_INT: return LIR_Opr::int_type;
486 case T_LONG: return LIR_Opr::long_type;
487 case T_FLOAT: return LIR_Opr::float_type;
488 case T_DOUBLE: return LIR_Opr::double_type;
489 case T_OBJECT:
490 case T_ARRAY: return LIR_Opr::object_type;
491 case T_ADDRESS: return LIR_Opr::address_type;
492 case T_METADATA: return LIR_Opr::metadata_type;
493 case T_ILLEGAL: // fall through
494 default: ShouldNotReachHere(); return LIR_Opr::unknown_type;
495 }
496 }
497
498 inline BasicType as_BasicType(LIR_Opr::OprType t) {
499 switch (t) {
500 case LIR_Opr::int_type: return T_INT;
501 case LIR_Opr::long_type: return T_LONG;
502 case LIR_Opr::float_type: return T_FLOAT;
503 case LIR_Opr::double_type: return T_DOUBLE;
504 case LIR_Opr::object_type: return T_OBJECT;
505 case LIR_Opr::address_type: return T_ADDRESS;
506 case LIR_Opr::metadata_type:return T_METADATA;
507 case LIR_Opr::unknown_type: // fall through
508 default: ShouldNotReachHere(); return T_ILLEGAL;
509 }
510 }
511
512
513 // LIR_Address
514 class LIR_Address: public LIR_OprPtr {
515 friend class LIR_OpVisitState;
516
517 public:
518 // NOTE: currently these must be the log2 of the scale factor (and
519 // must also be equivalent to the ScaleFactor enum in
520 // assembler_i486.hpp)
521 enum Scale {
522 times_1 = 0,
523 times_2 = 1,
524 times_4 = 2,
525 times_8 = 3
526 };
527
528 private:
529 LIR_Opr _base;
530 LIR_Opr _index;
531 Scale _scale;
532 intx _disp;
533 BasicType _type;
534
535 public:
536 LIR_Address(LIR_Opr base, LIR_Opr index, BasicType type):
537 _base(base)
538 , _index(index)
539 , _scale(times_1)
540 , _disp(0)
541 , _type(type) { verify(); }
542
543 LIR_Address(LIR_Opr base, intx disp, BasicType type):
544 _base(base)
545 , _index(LIR_Opr::illegalOpr())
546 , _scale(times_1)
547 , _disp(disp)
548 , _type(type) { verify(); }
549
550 LIR_Address(LIR_Opr base, BasicType type):
551 _base(base)
552 , _index(LIR_Opr::illegalOpr())
553 , _scale(times_1)
554 , _disp(0)
555 , _type(type) { verify(); }
556
557 LIR_Address(LIR_Opr base, LIR_Opr index, intx disp, BasicType type):
558 _base(base)
559 , _index(index)
560 , _scale(times_1)
561 , _disp(disp)
562 , _type(type) { verify(); }
563
564 LIR_Address(LIR_Opr base, LIR_Opr index, Scale scale, intx disp, BasicType type):
565 _base(base)
566 , _index(index)
567 , _scale(scale)
568 , _disp(disp)
569 , _type(type) { verify(); }
570
571 LIR_Opr base() const { return _base; }
572 LIR_Opr index() const { return _index; }
573 Scale scale() const { return _scale; }
574 intx disp() const { return _disp; }
575
576 bool equals(LIR_Address* other) const { return base() == other->base() && index() == other->index() && disp() == other->disp() && scale() == other->scale(); }
577
578 virtual LIR_Address* as_address() { return this; }
579 virtual BasicType type() const { return _type; }
580 virtual void print_value_on(outputStream* out) const PRODUCT_RETURN;
581
582 void verify() const PRODUCT_RETURN;
583
584 static Scale scale(BasicType type);
585 };
586
587
588 // operand factory
589 class LIR_OprFact: public AllStatic {
590 public:
591
592 static LIR_Opr illegalOpr;
593 static LIR_Opr nullOpr;
594
595 static LIR_Opr single_cpu(int reg) {
596 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) |
597 LIR_Opr::int_type |
598 LIR_Opr::cpu_register |
599 LIR_Opr::single_size);
600 }
601 static LIR_Opr single_cpu_oop(int reg) {
602 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) |
603 LIR_Opr::object_type |
604 LIR_Opr::cpu_register |
605 LIR_Opr::single_size);
606 }
607 static LIR_Opr single_cpu_address(int reg) {
608 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) |
609 LIR_Opr::address_type |
610 LIR_Opr::cpu_register |
611 LIR_Opr::single_size);
612 }
613 static LIR_Opr single_cpu_metadata(int reg) {
614 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) |
615 LIR_Opr::metadata_type |
616 LIR_Opr::cpu_register |
617 LIR_Opr::single_size);
618 }
619 static LIR_Opr double_cpu(int reg1, int reg2) {
620 LP64_ONLY(assert(reg1 == reg2, "must be identical"));
621 return (LIR_Opr)(intptr_t)((reg1 << LIR_Opr::reg1_shift) |
622 (reg2 << LIR_Opr::reg2_shift) |
623 LIR_Opr::long_type |
624 LIR_Opr::cpu_register |
625 LIR_Opr::double_size);
626 }
627
628 static LIR_Opr single_fpu(int reg) {
629 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) |
630 LIR_Opr::float_type |
631 LIR_Opr::fpu_register |
632 LIR_Opr::single_size);
633 }
634
635 // Platform dependent.
636 static LIR_Opr double_fpu(int reg1, int reg2 = -1 /*fnoreg*/);
637
638 #ifdef ARM32
639 static LIR_Opr single_softfp(int reg) {
640 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) |
641 LIR_Opr::float_type |
642 LIR_Opr::cpu_register |
643 LIR_Opr::single_size);
644 }
645 static LIR_Opr double_softfp(int reg1, int reg2) {
646 return (LIR_Opr)(intptr_t)((reg1 << LIR_Opr::reg1_shift) |
647 (reg2 << LIR_Opr::reg2_shift) |
648 LIR_Opr::double_type |
649 LIR_Opr::cpu_register |
650 LIR_Opr::double_size);
651 }
652 #endif // ARM32
653
654 #if defined(X86)
655 static LIR_Opr single_xmm(int reg) {
656 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) |
657 LIR_Opr::float_type |
658 LIR_Opr::fpu_register |
659 LIR_Opr::single_size |
660 LIR_Opr::is_xmm_mask);
661 }
662 static LIR_Opr double_xmm(int reg) {
663 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) |
664 (reg << LIR_Opr::reg2_shift) |
665 LIR_Opr::double_type |
666 LIR_Opr::fpu_register |
667 LIR_Opr::double_size |
668 LIR_Opr::is_xmm_mask);
669 }
670 #endif // X86
671
672 static LIR_Opr virtual_register(int index, BasicType type) {
673 if (index > LIR_Opr::vreg_max) {
674 // Running out of virtual registers. Caller should bailout.
675 return illegalOpr;
676 }
677
678 LIR_Opr res;
679 switch (type) {
680 case T_OBJECT: // fall through
681 case T_ARRAY:
682 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
683 LIR_Opr::object_type |
684 LIR_Opr::cpu_register |
685 LIR_Opr::single_size |
686 LIR_Opr::virtual_mask);
687 break;
688
689 case T_METADATA:
690 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
691 LIR_Opr::metadata_type|
692 LIR_Opr::cpu_register |
693 LIR_Opr::single_size |
694 LIR_Opr::virtual_mask);
695 break;
696
697 case T_INT:
698 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
699 LIR_Opr::int_type |
700 LIR_Opr::cpu_register |
701 LIR_Opr::single_size |
702 LIR_Opr::virtual_mask);
703 break;
704
705 case T_ADDRESS:
706 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
707 LIR_Opr::address_type |
708 LIR_Opr::cpu_register |
709 LIR_Opr::single_size |
710 LIR_Opr::virtual_mask);
711 break;
712
713 case T_LONG:
714 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
715 LIR_Opr::long_type |
716 LIR_Opr::cpu_register |
717 LIR_Opr::double_size |
718 LIR_Opr::virtual_mask);
719 break;
720
721 #ifdef __SOFTFP__
722 case T_FLOAT:
723 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
724 LIR_Opr::float_type |
725 LIR_Opr::cpu_register |
726 LIR_Opr::single_size |
727 LIR_Opr::virtual_mask);
728 break;
729 case T_DOUBLE:
730 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
731 LIR_Opr::double_type |
732 LIR_Opr::cpu_register |
733 LIR_Opr::double_size |
734 LIR_Opr::virtual_mask);
735 break;
736 #else // __SOFTFP__
737 case T_FLOAT:
738 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
739 LIR_Opr::float_type |
740 LIR_Opr::fpu_register |
741 LIR_Opr::single_size |
742 LIR_Opr::virtual_mask);
743 break;
744
745 case
746 T_DOUBLE: res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
747 LIR_Opr::double_type |
748 LIR_Opr::fpu_register |
749 LIR_Opr::double_size |
750 LIR_Opr::virtual_mask);
751 break;
752 #endif // __SOFTFP__
753 default: ShouldNotReachHere(); res = illegalOpr;
754 }
755
756 #ifdef ASSERT
757 res->validate_type();
758 assert(res->vreg_number() == index, "conversion check");
759 assert(index >= LIR_Opr::vreg_base, "must start at vreg_base");
760
761 // old-style calculation; check if old and new method are equal
762 LIR_Opr::OprType t = as_OprType(type);
763 #ifdef __SOFTFP__
764 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
765 t |
766 LIR_Opr::cpu_register |
767 LIR_Opr::size_for(type) | LIR_Opr::virtual_mask);
768 #else // __SOFTFP__
769 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) | t |
770 ((type == T_FLOAT || type == T_DOUBLE) ? LIR_Opr::fpu_register : LIR_Opr::cpu_register) |
771 LIR_Opr::size_for(type) | LIR_Opr::virtual_mask);
772 assert(res == old_res, "old and new method not equal");
773 #endif // __SOFTFP__
774 #endif // ASSERT
775
776 return res;
777 }
778
779 // 'index' is computed by FrameMap::local_stack_pos(index); do not use other parameters as
780 // the index is platform independent; a double stack using indices 2 and 3 has always
781 // index 2.
782 static LIR_Opr stack(int index, BasicType type) {
783 LIR_Opr res;
784 switch (type) {
785 case T_OBJECT: // fall through
786 case T_ARRAY:
787 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
788 LIR_Opr::object_type |
789 LIR_Opr::stack_value |
790 LIR_Opr::single_size);
791 break;
792
793 case T_METADATA:
794 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
795 LIR_Opr::metadata_type |
796 LIR_Opr::stack_value |
797 LIR_Opr::single_size);
798 break;
799 case T_INT:
800 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
801 LIR_Opr::int_type |
802 LIR_Opr::stack_value |
803 LIR_Opr::single_size);
804 break;
805
806 case T_ADDRESS:
807 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
808 LIR_Opr::address_type |
809 LIR_Opr::stack_value |
810 LIR_Opr::single_size);
811 break;
812
813 case T_LONG:
814 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
815 LIR_Opr::long_type |
816 LIR_Opr::stack_value |
817 LIR_Opr::double_size);
818 break;
819
820 case T_FLOAT:
821 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
822 LIR_Opr::float_type |
823 LIR_Opr::stack_value |
824 LIR_Opr::single_size);
825 break;
826 case T_DOUBLE:
827 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
828 LIR_Opr::double_type |
829 LIR_Opr::stack_value |
830 LIR_Opr::double_size);
831 break;
832
833 default: ShouldNotReachHere(); res = illegalOpr;
834 }
835
836 #ifdef ASSERT
837 assert(index >= 0, "index must be positive");
838 assert(index == (int)res->data(), "conversion check");
839
840 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) |
841 LIR_Opr::stack_value |
842 as_OprType(type) |
843 LIR_Opr::size_for(type));
844 assert(res == old_res, "old and new method not equal");
845 #endif
846
847 return res;
848 }
849
850 static LIR_Opr intConst(jint i) { return (LIR_Opr)(new LIR_Const(i)); }
851 static LIR_Opr longConst(jlong l) { return (LIR_Opr)(new LIR_Const(l)); }
852 static LIR_Opr floatConst(jfloat f) { return (LIR_Opr)(new LIR_Const(f)); }
853 static LIR_Opr doubleConst(jdouble d) { return (LIR_Opr)(new LIR_Const(d)); }
854 static LIR_Opr oopConst(jobject o) { return (LIR_Opr)(new LIR_Const(o)); }
855 static LIR_Opr address(LIR_Address* a) { return (LIR_Opr)a; }
856 static LIR_Opr intptrConst(void* p) { return (LIR_Opr)(new LIR_Const(p)); }
857 static LIR_Opr intptrConst(intptr_t v) { return (LIR_Opr)(new LIR_Const((void*)v)); }
858 static LIR_Opr illegal() { return (LIR_Opr)-1; }
859 static LIR_Opr addressConst(jint i) { return (LIR_Opr)(new LIR_Const(i, true)); }
860 static LIR_Opr metadataConst(Metadata* m) { return (LIR_Opr)(new LIR_Const(m)); }
861
862 static LIR_Opr value_type(ValueType* type);
863 };
864
865
866 //-------------------------------------------------------------------------------
867 // LIR Instructions
868 //-------------------------------------------------------------------------------
869 //
870 // Note:
871 // - every instruction has a result operand
872 // - every instruction has an CodeEmitInfo operand (can be revisited later)
873 // - every instruction has a LIR_OpCode operand
874 // - LIR_OpN, means an instruction that has N input operands
875 //
876 // class hierarchy:
877 //
878 class LIR_Op;
879 class LIR_Op0;
880 class LIR_OpLabel;
881 class LIR_Op1;
882 class LIR_OpBranch;
883 class LIR_OpConvert;
884 class LIR_OpAllocObj;
885 class LIR_OpReturn;
886 class LIR_OpRoundFP;
887 class LIR_Op2;
888 class LIR_OpDelay;
889 class LIR_Op3;
890 class LIR_OpAllocArray;
891 class LIR_Op4;
892 class LIR_OpCall;
893 class LIR_OpJavaCall;
894 class LIR_OpRTCall;
895 class LIR_OpArrayCopy;
896 class LIR_OpUpdateCRC32;
897 class LIR_OpLock;
898 class LIR_OpTypeCheck;
899 class LIR_OpCompareAndSwap;
900 class LIR_OpLoadKlass;
901 class LIR_OpProfileCall;
902 class LIR_OpProfileType;
903 #ifdef ASSERT
904 class LIR_OpAssert;
905 #endif
906
907 // LIR operation codes
908 enum LIR_Code {
909 lir_none
910 , begin_op0
911 , lir_label
912 , lir_nop
913 , lir_std_entry
914 , lir_osr_entry
915 , lir_fpop_raw
916 , lir_breakpoint
917 , lir_rtcall
918 , lir_membar
919 , lir_membar_acquire
920 , lir_membar_release
921 , lir_membar_loadload
922 , lir_membar_storestore
923 , lir_membar_loadstore
924 , lir_membar_storeload
925 , lir_get_thread
926 , lir_on_spin_wait
927 , end_op0
928 , begin_op1
929 , lir_fxch
930 , lir_fld
931 , lir_push
932 , lir_pop
933 , lir_null_check
934 , lir_return
935 , lir_leal
936 , lir_move
937 , lir_convert
938 , lir_alloc_object
939 , lir_monaddr
940 , lir_roundfp
941 , lir_safepoint
942 , lir_unwind
943 , lir_load_klass
944 , end_op1
945 , begin_op2
946 , lir_branch
947 , lir_cond_float_branch
948 , lir_cmp
949 , lir_cmp_l2i
950 , lir_ucmp_fd2i
951 , lir_cmp_fd2i
952 , lir_add
953 , lir_sub
954 , lir_mul
955 , lir_div
956 , lir_rem
957 , lir_sqrt
958 , lir_abs
959 , lir_neg
960 , lir_tan
961 , lir_f2hf
962 , lir_hf2f
963 , lir_log10
964 , lir_logic_and
965 , lir_logic_or
966 , lir_logic_xor
967 , lir_shl
968 , lir_shr
969 , lir_ushr
970 , lir_alloc_array
971 , lir_throw
972 , lir_xadd
973 , lir_xchg
974 , end_op2
975 , begin_op3
976 , lir_idiv
977 , lir_irem
978 , lir_fmad
979 , lir_fmaf
980 , end_op3
981 , begin_op4
982 , lir_cmove
983 , end_op4
984 , begin_opJavaCall
985 , lir_static_call
986 , lir_optvirtual_call
987 , lir_icvirtual_call
988 , lir_dynamic_call
989 , end_opJavaCall
990 , begin_opArrayCopy
991 , lir_arraycopy
992 , end_opArrayCopy
993 , begin_opUpdateCRC32
994 , lir_updatecrc32
995 , end_opUpdateCRC32
996 , begin_opLock
997 , lir_lock
998 , lir_unlock
999 , end_opLock
1000 , begin_delay_slot
1001 , lir_delay_slot
1002 , end_delay_slot
1003 , begin_opTypeCheck
1004 , lir_instanceof
1005 , lir_checkcast
1006 , lir_store_check
1007 , end_opTypeCheck
1008 , begin_opCompareAndSwap
1009 , lir_cas_long
1010 , lir_cas_obj
1011 , lir_cas_int
1012 , end_opCompareAndSwap
1013 , begin_opMDOProfile
1014 , lir_profile_call
1015 , lir_profile_type
1016 , end_opMDOProfile
1017 , begin_opAssert
1018 , lir_assert
1019 , end_opAssert
1020 #ifdef INCLUDE_ZGC
1021 , begin_opXLoadBarrierTest
1022 , lir_xloadbarrier_test
1023 , end_opXLoadBarrierTest
1024 #endif
1025 };
1026
1027
1028 enum LIR_Condition {
1029 lir_cond_equal
1030 , lir_cond_notEqual
1031 , lir_cond_less
1032 , lir_cond_lessEqual
1033 , lir_cond_greaterEqual
1034 , lir_cond_greater
1035 , lir_cond_belowEqual
1036 , lir_cond_aboveEqual
1037 , lir_cond_always
1038 , lir_cond_unknown = -1
1039 };
1040
1041
1042 enum LIR_PatchCode {
1043 lir_patch_none,
1044 lir_patch_low,
1045 lir_patch_high,
1046 lir_patch_normal
1047 };
1048
1049
1050 enum LIR_MoveKind {
1051 lir_move_normal,
1052 lir_move_volatile,
1053 lir_move_wide,
1054 lir_move_max_flag
1055 };
1056
1057
1058 // --------------------------------------------------
1059 // LIR_Op
1060 // --------------------------------------------------
1061 class LIR_Op: public CompilationResourceObj {
1062 friend class LIR_OpVisitState;
1063
1064 #ifdef ASSERT
1065 private:
1066 const char * _file;
1067 int _line;
1068 #endif
1069
1070 protected:
1071 LIR_Opr _result;
1072 unsigned short _code;
1073 unsigned short _flags;
1074 CodeEmitInfo* _info;
1075 int _id; // value id for register allocation
1076 int _fpu_pop_count;
1077 Instruction* _source; // for debugging
1078
1079 static void print_condition(outputStream* out, LIR_Condition cond) PRODUCT_RETURN;
1080
1081 protected:
1082 static bool is_in_range(LIR_Code test, LIR_Code start, LIR_Code end) { return start < test && test < end; }
1083
1084 public:
1085 LIR_Op()
1086 :
1087 #ifdef ASSERT
1088 _file(nullptr)
1089 , _line(0),
1090 #endif
1091 _result(LIR_OprFact::illegalOpr)
1092 , _code(lir_none)
1093 , _flags(0)
1094 , _info(nullptr)
1095 , _id(-1)
1096 , _fpu_pop_count(0)
1097 , _source(nullptr) {}
1098
1099 LIR_Op(LIR_Code code, LIR_Opr result, CodeEmitInfo* info)
1100 :
1101 #ifdef ASSERT
1102 _file(nullptr)
1103 , _line(0),
1104 #endif
1105 _result(result)
1106 , _code(code)
1107 , _flags(0)
1108 , _info(info)
1109 , _id(-1)
1110 , _fpu_pop_count(0)
1111 , _source(nullptr) {}
1112
1113 CodeEmitInfo* info() const { return _info; }
1114 LIR_Code code() const { return (LIR_Code)_code; }
1115 LIR_Opr result_opr() const { return _result; }
1116 void set_result_opr(LIR_Opr opr) { _result = opr; }
1117
1118 #ifdef ASSERT
1119 void set_file_and_line(const char * file, int line) {
1120 _file = file;
1121 _line = line;
1122 }
1123 #endif
1124
1125 virtual const char * name() const PRODUCT_RETURN0;
1126 virtual void visit(LIR_OpVisitState* state);
1127
1128 int id() const { return _id; }
1129 void set_id(int id) { _id = id; }
1130
1131 // FPU stack simulation helpers -- only used on Intel
1132 void set_fpu_pop_count(int count) { assert(count >= 0 && count <= 1, "currently only 0 and 1 are valid"); _fpu_pop_count = count; }
1133 int fpu_pop_count() const { return _fpu_pop_count; }
1134 bool pop_fpu_stack() { return _fpu_pop_count > 0; }
1135
1136 Instruction* source() const { return _source; }
1137 void set_source(Instruction* ins) { _source = ins; }
1138
1139 virtual void emit_code(LIR_Assembler* masm) = 0;
1140 virtual void print_instr(outputStream* out) const = 0;
1141 virtual void print_on(outputStream* st) const PRODUCT_RETURN;
1142
1143 virtual bool is_patching() { return false; }
1144 virtual LIR_OpCall* as_OpCall() { return nullptr; }
1145 virtual LIR_OpJavaCall* as_OpJavaCall() { return nullptr; }
1146 virtual LIR_OpLabel* as_OpLabel() { return nullptr; }
1147 virtual LIR_OpDelay* as_OpDelay() { return nullptr; }
1148 virtual LIR_OpLock* as_OpLock() { return nullptr; }
1149 virtual LIR_OpAllocArray* as_OpAllocArray() { return nullptr; }
1150 virtual LIR_OpAllocObj* as_OpAllocObj() { return nullptr; }
1151 virtual LIR_OpRoundFP* as_OpRoundFP() { return nullptr; }
1152 virtual LIR_OpBranch* as_OpBranch() { return nullptr; }
1153 virtual LIR_OpReturn* as_OpReturn() { return nullptr; }
1154 virtual LIR_OpRTCall* as_OpRTCall() { return nullptr; }
1155 virtual LIR_OpConvert* as_OpConvert() { return nullptr; }
1156 virtual LIR_Op0* as_Op0() { return nullptr; }
1157 virtual LIR_Op1* as_Op1() { return nullptr; }
1158 virtual LIR_Op2* as_Op2() { return nullptr; }
1159 virtual LIR_Op3* as_Op3() { return nullptr; }
1160 virtual LIR_Op4* as_Op4() { return nullptr; }
1161 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return nullptr; }
1162 virtual LIR_OpUpdateCRC32* as_OpUpdateCRC32() { return nullptr; }
1163 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return nullptr; }
1164 virtual LIR_OpCompareAndSwap* as_OpCompareAndSwap() { return nullptr; }
1165 virtual LIR_OpLoadKlass* as_OpLoadKlass() { return nullptr; }
1166 virtual LIR_OpProfileCall* as_OpProfileCall() { return nullptr; }
1167 virtual LIR_OpProfileType* as_OpProfileType() { return nullptr; }
1168 #ifdef ASSERT
1169 virtual LIR_OpAssert* as_OpAssert() { return nullptr; }
1170 #endif
1171
1172 virtual void verify() const {}
1173 };
1174
1175 // for calls
1176 class LIR_OpCall: public LIR_Op {
1177 friend class LIR_OpVisitState;
1178
1179 protected:
1180 address _addr;
1181 LIR_OprList* _arguments;
1182 protected:
1183 LIR_OpCall(LIR_Code code, address addr, LIR_Opr result,
1184 LIR_OprList* arguments, CodeEmitInfo* info = nullptr)
1185 : LIR_Op(code, result, info)
1186 , _addr(addr)
1187 , _arguments(arguments) {}
1188
1189 public:
1190 address addr() const { return _addr; }
1191 const LIR_OprList* arguments() const { return _arguments; }
1192 virtual LIR_OpCall* as_OpCall() { return this; }
1193 };
1194
1195
1196 // --------------------------------------------------
1197 // LIR_OpJavaCall
1198 // --------------------------------------------------
1199 class LIR_OpJavaCall: public LIR_OpCall {
1200 friend class LIR_OpVisitState;
1201
1202 private:
1203 ciMethod* _method;
1204 LIR_Opr _receiver;
1205 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.
1206
1207 public:
1208 LIR_OpJavaCall(LIR_Code code, ciMethod* method,
1209 LIR_Opr receiver, LIR_Opr result,
1210 address addr, LIR_OprList* arguments,
1211 CodeEmitInfo* info)
1212 : LIR_OpCall(code, addr, result, arguments, info)
1213 , _method(method)
1214 , _receiver(receiver)
1215 , _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr)
1216 { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); }
1217
1218 LIR_OpJavaCall(LIR_Code code, ciMethod* method,
1219 LIR_Opr receiver, LIR_Opr result, intptr_t vtable_offset,
1220 LIR_OprList* arguments, CodeEmitInfo* info)
1221 : LIR_OpCall(code, (address)vtable_offset, result, arguments, info)
1222 , _method(method)
1223 , _receiver(receiver)
1224 , _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr)
1225 { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); }
1226
1227 LIR_Opr receiver() const { return _receiver; }
1228 ciMethod* method() const { return _method; }
1229
1230 // JSR 292 support.
1231 bool is_invokedynamic() const { return code() == lir_dynamic_call; }
1232 bool is_method_handle_invoke() const {
1233 return method()->is_compiled_lambda_form() || // Java-generated lambda form
1234 method()->is_method_handle_intrinsic(); // JVM-generated MH intrinsic
1235 }
1236
1237 virtual void emit_code(LIR_Assembler* masm);
1238 virtual LIR_OpJavaCall* as_OpJavaCall() { return this; }
1239 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1240 };
1241
1242 // --------------------------------------------------
1243 // LIR_OpLabel
1244 // --------------------------------------------------
1245 // Location where a branch can continue
1246 class LIR_OpLabel: public LIR_Op {
1247 friend class LIR_OpVisitState;
1248
1249 private:
1250 Label* _label;
1251 public:
1252 LIR_OpLabel(Label* lbl)
1253 : LIR_Op(lir_label, LIR_OprFact::illegalOpr, nullptr)
1254 , _label(lbl) {}
1255 Label* label() const { return _label; }
1256
1257 virtual void emit_code(LIR_Assembler* masm);
1258 virtual LIR_OpLabel* as_OpLabel() { return this; }
1259 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1260 };
1261
1262 // LIR_OpArrayCopy
1263 class LIR_OpArrayCopy: public LIR_Op {
1264 friend class LIR_OpVisitState;
1265
1266 private:
1267 ArrayCopyStub* _stub;
1268 LIR_Opr _src;
1269 LIR_Opr _src_pos;
1270 LIR_Opr _dst;
1271 LIR_Opr _dst_pos;
1272 LIR_Opr _length;
1273 LIR_Opr _tmp;
1274 ciArrayKlass* _expected_type;
1275 int _flags;
1276
1277 public:
1278 enum Flags {
1279 src_null_check = 1 << 0,
1280 dst_null_check = 1 << 1,
1281 src_pos_positive_check = 1 << 2,
1282 dst_pos_positive_check = 1 << 3,
1283 length_positive_check = 1 << 4,
1284 src_range_check = 1 << 5,
1285 dst_range_check = 1 << 6,
1286 type_check = 1 << 7,
1287 overlapping = 1 << 8,
1288 unaligned = 1 << 9,
1289 src_objarray = 1 << 10,
1290 dst_objarray = 1 << 11,
1291 all_flags = (1 << 12) - 1
1292 };
1293
1294 LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length, LIR_Opr tmp,
1295 ciArrayKlass* expected_type, int flags, CodeEmitInfo* info);
1296
1297 LIR_Opr src() const { return _src; }
1298 LIR_Opr src_pos() const { return _src_pos; }
1299 LIR_Opr dst() const { return _dst; }
1300 LIR_Opr dst_pos() const { return _dst_pos; }
1301 LIR_Opr length() const { return _length; }
1302 LIR_Opr tmp() const { return _tmp; }
1303 int flags() const { return _flags; }
1304 ciArrayKlass* expected_type() const { return _expected_type; }
1305 ArrayCopyStub* stub() const { return _stub; }
1306
1307 virtual void emit_code(LIR_Assembler* masm);
1308 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return this; }
1309 void print_instr(outputStream* out) const PRODUCT_RETURN;
1310 };
1311
1312 // LIR_OpUpdateCRC32
1313 class LIR_OpUpdateCRC32: public LIR_Op {
1314 friend class LIR_OpVisitState;
1315
1316 private:
1317 LIR_Opr _crc;
1318 LIR_Opr _val;
1319
1320 public:
1321
1322 LIR_OpUpdateCRC32(LIR_Opr crc, LIR_Opr val, LIR_Opr res);
1323
1324 LIR_Opr crc() const { return _crc; }
1325 LIR_Opr val() const { return _val; }
1326
1327 virtual void emit_code(LIR_Assembler* masm);
1328 virtual LIR_OpUpdateCRC32* as_OpUpdateCRC32() { return this; }
1329 void print_instr(outputStream* out) const PRODUCT_RETURN;
1330 };
1331
1332 // --------------------------------------------------
1333 // LIR_Op0
1334 // --------------------------------------------------
1335 class LIR_Op0: public LIR_Op {
1336 friend class LIR_OpVisitState;
1337
1338 public:
1339 LIR_Op0(LIR_Code code)
1340 : LIR_Op(code, LIR_OprFact::illegalOpr, nullptr) { assert(is_in_range(code, begin_op0, end_op0), "code check"); }
1341 LIR_Op0(LIR_Code code, LIR_Opr result, CodeEmitInfo* info = nullptr)
1342 : LIR_Op(code, result, info) { assert(is_in_range(code, begin_op0, end_op0), "code check"); }
1343
1344 virtual void emit_code(LIR_Assembler* masm);
1345 virtual LIR_Op0* as_Op0() { return this; }
1346 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1347 };
1348
1349
1350 // --------------------------------------------------
1351 // LIR_Op1
1352 // --------------------------------------------------
1353
1354 class LIR_Op1: public LIR_Op {
1355 friend class LIR_OpVisitState;
1356
1357 protected:
1358 LIR_Opr _opr; // input operand
1359 BasicType _type; // Operand types
1360 LIR_PatchCode _patch; // only required with patchin (NEEDS_CLEANUP: do we want a special instruction for patching?)
1361
1362 static void print_patch_code(outputStream* out, LIR_PatchCode code);
1363
1364 void set_kind(LIR_MoveKind kind) {
1365 assert(code() == lir_move, "must be");
1366 _flags = kind;
1367 }
1368
1369 public:
1370 LIR_Op1(LIR_Code code, LIR_Opr opr, LIR_Opr result = LIR_OprFact::illegalOpr, BasicType type = T_ILLEGAL, LIR_PatchCode patch = lir_patch_none, CodeEmitInfo* info = nullptr)
1371 : LIR_Op(code, result, info)
1372 , _opr(opr)
1373 , _type(type)
1374 , _patch(patch) { assert(is_in_range(code, begin_op1, end_op1), "code check"); }
1375
1376 LIR_Op1(LIR_Code code, LIR_Opr opr, LIR_Opr result, BasicType type, LIR_PatchCode patch, CodeEmitInfo* info, LIR_MoveKind kind)
1377 : LIR_Op(code, result, info)
1378 , _opr(opr)
1379 , _type(type)
1380 , _patch(patch) {
1381 assert(code == lir_move, "must be");
1382 set_kind(kind);
1383 }
1384
1385 LIR_Op1(LIR_Code code, LIR_Opr opr, CodeEmitInfo* info)
1386 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1387 , _opr(opr)
1388 , _type(T_ILLEGAL)
1389 , _patch(lir_patch_none) { assert(is_in_range(code, begin_op1, end_op1), "code check"); }
1390
1391 LIR_Opr in_opr() const { return _opr; }
1392 LIR_PatchCode patch_code() const { return _patch; }
1393 BasicType type() const { return _type; }
1394
1395 LIR_MoveKind move_kind() const {
1396 assert(code() == lir_move, "must be");
1397 return (LIR_MoveKind)_flags;
1398 }
1399
1400 virtual bool is_patching() { return _patch != lir_patch_none; }
1401 virtual void emit_code(LIR_Assembler* masm);
1402 virtual LIR_Op1* as_Op1() { return this; }
1403 virtual const char * name() const PRODUCT_RETURN0;
1404
1405 void set_in_opr(LIR_Opr opr) { _opr = opr; }
1406
1407 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1408 virtual void verify() const;
1409 };
1410
1411
1412 // for runtime calls
1413 class LIR_OpRTCall: public LIR_OpCall {
1414 friend class LIR_OpVisitState;
1415
1416 private:
1417 LIR_Opr _tmp;
1418 public:
1419 LIR_OpRTCall(address addr, LIR_Opr tmp,
1420 LIR_Opr result, LIR_OprList* arguments, CodeEmitInfo* info = nullptr)
1421 : LIR_OpCall(lir_rtcall, addr, result, arguments, info)
1422 , _tmp(tmp) {}
1423
1424 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1425 virtual void emit_code(LIR_Assembler* masm);
1426 virtual LIR_OpRTCall* as_OpRTCall() { return this; }
1427
1428 LIR_Opr tmp() const { return _tmp; }
1429
1430 virtual void verify() const;
1431 };
1432
1433
1434
1435 class LIR_OpReturn: public LIR_Op1 {
1436 friend class LIR_OpVisitState;
1437
1438 private:
1439 C1SafepointPollStub* _stub;
1440
1441 public:
1442 LIR_OpReturn(LIR_Opr opr);
1443
1444 C1SafepointPollStub* stub() const { return _stub; }
1445 virtual LIR_OpReturn* as_OpReturn() { return this; }
1446 };
1447
1448 class ConversionStub;
1449
1450 class LIR_OpConvert: public LIR_Op1 {
1451 friend class LIR_OpVisitState;
1452
1453 private:
1454 Bytecodes::Code _bytecode;
1455 ConversionStub* _stub;
1456
1457 public:
1458 LIR_OpConvert(Bytecodes::Code code, LIR_Opr opr, LIR_Opr result, ConversionStub* stub)
1459 : LIR_Op1(lir_convert, opr, result)
1460 , _bytecode(code)
1461 , _stub(stub) {}
1462
1463 Bytecodes::Code bytecode() const { return _bytecode; }
1464 ConversionStub* stub() const { return _stub; }
1465
1466 virtual void emit_code(LIR_Assembler* masm);
1467 virtual LIR_OpConvert* as_OpConvert() { return this; }
1468 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1469
1470 static void print_bytecode(outputStream* out, Bytecodes::Code code) PRODUCT_RETURN;
1471 };
1472
1473
1474 // LIR_OpAllocObj
1475 class LIR_OpAllocObj : public LIR_Op1 {
1476 friend class LIR_OpVisitState;
1477
1478 private:
1479 LIR_Opr _tmp1;
1480 LIR_Opr _tmp2;
1481 LIR_Opr _tmp3;
1482 LIR_Opr _tmp4;
1483 int _hdr_size;
1484 int _obj_size;
1485 CodeStub* _stub;
1486 bool _init_check;
1487
1488 public:
1489 LIR_OpAllocObj(LIR_Opr klass, LIR_Opr result,
1490 LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1491 int hdr_size, int obj_size, bool init_check, CodeStub* stub)
1492 : LIR_Op1(lir_alloc_object, klass, result)
1493 , _tmp1(t1)
1494 , _tmp2(t2)
1495 , _tmp3(t3)
1496 , _tmp4(t4)
1497 , _hdr_size(hdr_size)
1498 , _obj_size(obj_size)
1499 , _stub(stub)
1500 , _init_check(init_check) { }
1501
1502 LIR_Opr klass() const { return in_opr(); }
1503 LIR_Opr obj() const { return result_opr(); }
1504 LIR_Opr tmp1() const { return _tmp1; }
1505 LIR_Opr tmp2() const { return _tmp2; }
1506 LIR_Opr tmp3() const { return _tmp3; }
1507 LIR_Opr tmp4() const { return _tmp4; }
1508 int header_size() const { return _hdr_size; }
1509 int object_size() const { return _obj_size; }
1510 bool init_check() const { return _init_check; }
1511 CodeStub* stub() const { return _stub; }
1512
1513 virtual void emit_code(LIR_Assembler* masm);
1514 virtual LIR_OpAllocObj * as_OpAllocObj () { return this; }
1515 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1516 };
1517
1518
1519 // LIR_OpRoundFP
1520 class LIR_OpRoundFP : public LIR_Op1 {
1521 friend class LIR_OpVisitState;
1522
1523 private:
1524 LIR_Opr _tmp;
1525
1526 public:
1527 LIR_OpRoundFP(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result)
1528 : LIR_Op1(lir_roundfp, reg, result)
1529 , _tmp(stack_loc_temp) {}
1530
1531 LIR_Opr tmp() const { return _tmp; }
1532 virtual LIR_OpRoundFP* as_OpRoundFP() { return this; }
1533 void print_instr(outputStream* out) const PRODUCT_RETURN;
1534 };
1535
1536 // LIR_OpTypeCheck
1537 class LIR_OpTypeCheck: public LIR_Op {
1538 friend class LIR_OpVisitState;
1539
1540 private:
1541 LIR_Opr _object;
1542 LIR_Opr _array;
1543 ciKlass* _klass;
1544 LIR_Opr _tmp1;
1545 LIR_Opr _tmp2;
1546 LIR_Opr _tmp3;
1547 bool _fast_check;
1548 CodeEmitInfo* _info_for_patch;
1549 CodeEmitInfo* _info_for_exception;
1550 CodeStub* _stub;
1551 ciMethod* _profiled_method;
1552 int _profiled_bci;
1553 bool _should_profile;
1554
1555 public:
1556 LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
1557 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1558 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub);
1559 LIR_OpTypeCheck(LIR_Code code, LIR_Opr object, LIR_Opr array,
1560 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception);
1561
1562 LIR_Opr object() const { return _object; }
1563 LIR_Opr array() const { assert(code() == lir_store_check, "not valid"); return _array; }
1564 LIR_Opr tmp1() const { return _tmp1; }
1565 LIR_Opr tmp2() const { return _tmp2; }
1566 LIR_Opr tmp3() const { return _tmp3; }
1567 ciKlass* klass() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _klass; }
1568 bool fast_check() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _fast_check; }
1569 CodeEmitInfo* info_for_patch() const { return _info_for_patch; }
1570 CodeEmitInfo* info_for_exception() const { return _info_for_exception; }
1571 CodeStub* stub() const { return _stub; }
1572
1573 // MethodData* profiling
1574 void set_profiled_method(ciMethod *method) { _profiled_method = method; }
1575 void set_profiled_bci(int bci) { _profiled_bci = bci; }
1576 void set_should_profile(bool b) { _should_profile = b; }
1577 ciMethod* profiled_method() const { return _profiled_method; }
1578 int profiled_bci() const { return _profiled_bci; }
1579 bool should_profile() const { return _should_profile; }
1580
1581 virtual bool is_patching() { return _info_for_patch != nullptr; }
1582 virtual void emit_code(LIR_Assembler* masm);
1583 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return this; }
1584 void print_instr(outputStream* out) const PRODUCT_RETURN;
1585 };
1586
1587 // LIR_Op2
1588 class LIR_Op2: public LIR_Op {
1589 friend class LIR_OpVisitState;
1590
1591 int _fpu_stack_size; // for sin/cos implementation on Intel
1592
1593 protected:
1594 LIR_Opr _opr1;
1595 LIR_Opr _opr2;
1596 BasicType _type;
1597 LIR_Opr _tmp1;
1598 LIR_Opr _tmp2;
1599 LIR_Opr _tmp3;
1600 LIR_Opr _tmp4;
1601 LIR_Opr _tmp5;
1602 LIR_Condition _condition;
1603
1604 void verify() const;
1605
1606 public:
1607 LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, CodeEmitInfo* info = nullptr, BasicType type = T_ILLEGAL)
1608 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1609 , _fpu_stack_size(0)
1610 , _opr1(opr1)
1611 , _opr2(opr2)
1612 , _type(type)
1613 , _tmp1(LIR_OprFact::illegalOpr)
1614 , _tmp2(LIR_OprFact::illegalOpr)
1615 , _tmp3(LIR_OprFact::illegalOpr)
1616 , _tmp4(LIR_OprFact::illegalOpr)
1617 , _tmp5(LIR_OprFact::illegalOpr)
1618 , _condition(condition) {
1619 assert(code == lir_cmp || code == lir_branch || code == lir_cond_float_branch || code == lir_assert, "code check");
1620 }
1621
1622 LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, BasicType type)
1623 : LIR_Op(code, result, nullptr)
1624 , _fpu_stack_size(0)
1625 , _opr1(opr1)
1626 , _opr2(opr2)
1627 , _type(type)
1628 , _tmp1(LIR_OprFact::illegalOpr)
1629 , _tmp2(LIR_OprFact::illegalOpr)
1630 , _tmp3(LIR_OprFact::illegalOpr)
1631 , _tmp4(LIR_OprFact::illegalOpr)
1632 , _tmp5(LIR_OprFact::illegalOpr)
1633 , _condition(condition) {
1634 assert(code == lir_cmove, "code check");
1635 assert(type != T_ILLEGAL, "cmove should have type");
1636 }
1637
1638 LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result = LIR_OprFact::illegalOpr,
1639 CodeEmitInfo* info = nullptr, BasicType type = T_ILLEGAL)
1640 : LIR_Op(code, result, info)
1641 , _fpu_stack_size(0)
1642 , _opr1(opr1)
1643 , _opr2(opr2)
1644 , _type(type)
1645 , _tmp1(LIR_OprFact::illegalOpr)
1646 , _tmp2(LIR_OprFact::illegalOpr)
1647 , _tmp3(LIR_OprFact::illegalOpr)
1648 , _tmp4(LIR_OprFact::illegalOpr)
1649 , _tmp5(LIR_OprFact::illegalOpr)
1650 , _condition(lir_cond_unknown) {
1651 assert(code != lir_cmp && code != lir_branch && code != lir_cond_float_branch && is_in_range(code, begin_op2, end_op2), "code check");
1652 }
1653
1654 LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, LIR_Opr tmp1, LIR_Opr tmp2 = LIR_OprFact::illegalOpr,
1655 LIR_Opr tmp3 = LIR_OprFact::illegalOpr, LIR_Opr tmp4 = LIR_OprFact::illegalOpr, LIR_Opr tmp5 = LIR_OprFact::illegalOpr)
1656 : LIR_Op(code, result, nullptr)
1657 , _fpu_stack_size(0)
1658 , _opr1(opr1)
1659 , _opr2(opr2)
1660 , _type(T_ILLEGAL)
1661 , _tmp1(tmp1)
1662 , _tmp2(tmp2)
1663 , _tmp3(tmp3)
1664 , _tmp4(tmp4)
1665 , _tmp5(tmp5)
1666 , _condition(lir_cond_unknown) {
1667 assert(code != lir_cmp && code != lir_branch && code != lir_cond_float_branch && is_in_range(code, begin_op2, end_op2), "code check");
1668 }
1669
1670 LIR_Opr in_opr1() const { return _opr1; }
1671 LIR_Opr in_opr2() const { return _opr2; }
1672 BasicType type() const { return _type; }
1673 LIR_Opr tmp1_opr() const { return _tmp1; }
1674 LIR_Opr tmp2_opr() const { return _tmp2; }
1675 LIR_Opr tmp3_opr() const { return _tmp3; }
1676 LIR_Opr tmp4_opr() const { return _tmp4; }
1677 LIR_Opr tmp5_opr() const { return _tmp5; }
1678 LIR_Condition condition() const {
1679 assert(code() == lir_cmp || code() == lir_branch || code() == lir_cond_float_branch || code() == lir_assert, "only valid for branch and assert"); return _condition;
1680 }
1681 void set_condition(LIR_Condition condition) {
1682 assert(code() == lir_cmp || code() == lir_branch || code() == lir_cond_float_branch, "only valid for branch"); _condition = condition;
1683 }
1684
1685 void set_fpu_stack_size(int size) { _fpu_stack_size = size; }
1686 int fpu_stack_size() const { return _fpu_stack_size; }
1687
1688 void set_in_opr1(LIR_Opr opr) { _opr1 = opr; }
1689 void set_in_opr2(LIR_Opr opr) { _opr2 = opr; }
1690
1691 virtual void emit_code(LIR_Assembler* masm);
1692 virtual LIR_Op2* as_Op2() { return this; }
1693 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1694 };
1695
1696 class LIR_OpBranch: public LIR_Op2 {
1697 friend class LIR_OpVisitState;
1698
1699 private:
1700 Label* _label;
1701 BlockBegin* _block; // if this is a branch to a block, this is the block
1702 BlockBegin* _ublock; // if this is a float-branch, this is the unordered block
1703 CodeStub* _stub; // if this is a branch to a stub, this is the stub
1704
1705 public:
1706 LIR_OpBranch(LIR_Condition cond, Label* lbl)
1707 : LIR_Op2(lir_branch, cond, LIR_OprFact::illegalOpr, LIR_OprFact::illegalOpr, (CodeEmitInfo*) nullptr)
1708 , _label(lbl)
1709 , _block(nullptr)
1710 , _ublock(nullptr)
1711 , _stub(nullptr) { }
1712
1713 LIR_OpBranch(LIR_Condition cond, BlockBegin* block);
1714 LIR_OpBranch(LIR_Condition cond, CodeStub* stub);
1715
1716 // for unordered comparisons
1717 LIR_OpBranch(LIR_Condition cond, BlockBegin* block, BlockBegin* ublock);
1718
1719 LIR_Condition cond() const {
1720 return condition();
1721 }
1722
1723 void set_cond(LIR_Condition cond) {
1724 set_condition(cond);
1725 }
1726
1727 Label* label() const { return _label; }
1728 BlockBegin* block() const { return _block; }
1729 BlockBegin* ublock() const { return _ublock; }
1730 CodeStub* stub() const { return _stub; }
1731
1732 void change_block(BlockBegin* b);
1733 void change_ublock(BlockBegin* b);
1734 void negate_cond();
1735
1736 virtual void emit_code(LIR_Assembler* masm);
1737 virtual LIR_OpBranch* as_OpBranch() { return this; }
1738 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1739 };
1740
1741 class LIR_OpAllocArray : public LIR_Op {
1742 friend class LIR_OpVisitState;
1743
1744 private:
1745 LIR_Opr _klass;
1746 LIR_Opr _len;
1747 LIR_Opr _tmp1;
1748 LIR_Opr _tmp2;
1749 LIR_Opr _tmp3;
1750 LIR_Opr _tmp4;
1751 BasicType _type;
1752 CodeStub* _stub;
1753
1754 public:
1755 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)
1756 : LIR_Op(lir_alloc_array, result, nullptr)
1757 , _klass(klass)
1758 , _len(len)
1759 , _tmp1(t1)
1760 , _tmp2(t2)
1761 , _tmp3(t3)
1762 , _tmp4(t4)
1763 , _type(type)
1764 , _stub(stub) {}
1765
1766 LIR_Opr klass() const { return _klass; }
1767 LIR_Opr len() const { return _len; }
1768 LIR_Opr obj() const { return result_opr(); }
1769 LIR_Opr tmp1() const { return _tmp1; }
1770 LIR_Opr tmp2() const { return _tmp2; }
1771 LIR_Opr tmp3() const { return _tmp3; }
1772 LIR_Opr tmp4() const { return _tmp4; }
1773 BasicType type() const { return _type; }
1774 CodeStub* stub() const { return _stub; }
1775
1776 virtual void emit_code(LIR_Assembler* masm);
1777 virtual LIR_OpAllocArray * as_OpAllocArray () { return this; }
1778 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1779 };
1780
1781
1782 class LIR_Op3: public LIR_Op {
1783 friend class LIR_OpVisitState;
1784
1785 private:
1786 LIR_Opr _opr1;
1787 LIR_Opr _opr2;
1788 LIR_Opr _opr3;
1789 public:
1790 LIR_Op3(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr opr3, LIR_Opr result, CodeEmitInfo* info = nullptr)
1791 : LIR_Op(code, result, info)
1792 , _opr1(opr1)
1793 , _opr2(opr2)
1794 , _opr3(opr3) { assert(is_in_range(code, begin_op3, end_op3), "code check"); }
1795 LIR_Opr in_opr1() const { return _opr1; }
1796 LIR_Opr in_opr2() const { return _opr2; }
1797 LIR_Opr in_opr3() const { return _opr3; }
1798
1799 virtual void emit_code(LIR_Assembler* masm);
1800 virtual LIR_Op3* as_Op3() { return this; }
1801 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1802 };
1803
1804 class LIR_Op4: public LIR_Op {
1805 friend class LIR_OpVisitState;
1806 protected:
1807 LIR_Opr _opr1;
1808 LIR_Opr _opr2;
1809 LIR_Opr _opr3;
1810 LIR_Opr _opr4;
1811 BasicType _type;
1812 LIR_Opr _tmp1;
1813 LIR_Opr _tmp2;
1814 LIR_Opr _tmp3;
1815 LIR_Opr _tmp4;
1816 LIR_Opr _tmp5;
1817 LIR_Condition _condition;
1818
1819 public:
1820 LIR_Op4(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr opr3, LIR_Opr opr4,
1821 LIR_Opr result, BasicType type)
1822 : LIR_Op(code, result, nullptr)
1823 , _opr1(opr1)
1824 , _opr2(opr2)
1825 , _opr3(opr3)
1826 , _opr4(opr4)
1827 , _type(type)
1828 , _tmp1(LIR_OprFact::illegalOpr)
1829 , _tmp2(LIR_OprFact::illegalOpr)
1830 , _tmp3(LIR_OprFact::illegalOpr)
1831 , _tmp4(LIR_OprFact::illegalOpr)
1832 , _tmp5(LIR_OprFact::illegalOpr)
1833 , _condition(condition) {
1834 assert(code == lir_cmove, "code check");
1835 assert(type != T_ILLEGAL, "cmove should have type");
1836 }
1837
1838 LIR_Opr in_opr1() const { return _opr1; }
1839 LIR_Opr in_opr2() const { return _opr2; }
1840 LIR_Opr in_opr3() const { return _opr3; }
1841 LIR_Opr in_opr4() const { return _opr4; }
1842 BasicType type() const { return _type; }
1843 LIR_Opr tmp1_opr() const { return _tmp1; }
1844 LIR_Opr tmp2_opr() const { return _tmp2; }
1845 LIR_Opr tmp3_opr() const { return _tmp3; }
1846 LIR_Opr tmp4_opr() const { return _tmp4; }
1847 LIR_Opr tmp5_opr() const { return _tmp5; }
1848
1849 LIR_Condition condition() const { return _condition; }
1850 void set_condition(LIR_Condition condition) { _condition = condition; }
1851
1852 void set_in_opr1(LIR_Opr opr) { _opr1 = opr; }
1853 void set_in_opr2(LIR_Opr opr) { _opr2 = opr; }
1854 void set_in_opr3(LIR_Opr opr) { _opr3 = opr; }
1855 void set_in_opr4(LIR_Opr opr) { _opr4 = opr; }
1856 virtual void emit_code(LIR_Assembler* masm);
1857 virtual LIR_Op4* as_Op4() { return this; }
1858
1859 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1860 };
1861
1862 //--------------------------------
1863 class LabelObj: public CompilationResourceObj {
1864 private:
1865 Label _label;
1866 public:
1867 LabelObj() {}
1868 Label* label() { return &_label; }
1869 };
1870
1871
1872 class LIR_OpLock: public LIR_Op {
1873 friend class LIR_OpVisitState;
1874
1875 private:
1876 LIR_Opr _hdr;
1877 LIR_Opr _obj;
1878 LIR_Opr _lock;
1879 LIR_Opr _scratch;
1880 CodeStub* _stub;
1881 public:
1882 LIR_OpLock(LIR_Code code, LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info)
1883 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1884 , _hdr(hdr)
1885 , _obj(obj)
1886 , _lock(lock)
1887 , _scratch(scratch)
1888 , _stub(stub) {}
1889
1890 LIR_Opr hdr_opr() const { return _hdr; }
1891 LIR_Opr obj_opr() const { return _obj; }
1892 LIR_Opr lock_opr() const { return _lock; }
1893 LIR_Opr scratch_opr() const { return _scratch; }
1894 CodeStub* stub() const { return _stub; }
1895
1896 virtual void emit_code(LIR_Assembler* masm);
1897 virtual LIR_OpLock* as_OpLock() { return this; }
1898 void print_instr(outputStream* out) const PRODUCT_RETURN;
1899 };
1900
1901 class LIR_OpLoadKlass: public LIR_Op {
1902 friend class LIR_OpVisitState;
1903
1904 private:
1905 LIR_Opr _obj;
1906 CodeStub* _stub;
1907 public:
1908 LIR_OpLoadKlass(LIR_Opr obj, LIR_Opr result, CodeEmitInfo* info, CodeStub* stub)
1909 : LIR_Op(lir_load_klass, result, info)
1910 , _obj(obj)
1911 , _stub(stub)
1912 {}
1913
1914 LIR_Opr obj() const { return _obj; }
1915 CodeStub* stub() const { return _stub; }
1916
1917 virtual LIR_OpLoadKlass* as_OpLoadKlass() { return this; }
1918 virtual void emit_code(LIR_Assembler* masm);
1919 void print_instr(outputStream* out) const PRODUCT_RETURN;
1920 };
1921
1922 class LIR_OpDelay: public LIR_Op {
1923 friend class LIR_OpVisitState;
1924
1925 private:
1926 LIR_Op* _op;
1927
1928 public:
1929 LIR_OpDelay(LIR_Op* op, CodeEmitInfo* info):
1930 LIR_Op(lir_delay_slot, LIR_OprFact::illegalOpr, info),
1931 _op(op) {
1932 assert(op->code() == lir_nop, "should be filling with nops");
1933 }
1934 virtual void emit_code(LIR_Assembler* masm);
1935 virtual LIR_OpDelay* as_OpDelay() { return this; }
1936 void print_instr(outputStream* out) const PRODUCT_RETURN;
1937 LIR_Op* delay_op() const { return _op; }
1938 CodeEmitInfo* call_info() const { return info(); }
1939 };
1940
1941 #ifdef ASSERT
1942 // LIR_OpAssert
1943 class LIR_OpAssert : public LIR_Op2 {
1944 friend class LIR_OpVisitState;
1945
1946 private:
1947 const char* _msg;
1948 bool _halt;
1949
1950 public:
1951 LIR_OpAssert(LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, const char* msg, bool halt)
1952 : LIR_Op2(lir_assert, condition, opr1, opr2)
1953 , _msg(msg)
1954 , _halt(halt) {
1955 }
1956
1957 const char* msg() const { return _msg; }
1958 bool halt() const { return _halt; }
1959
1960 virtual void emit_code(LIR_Assembler* masm);
1961 virtual LIR_OpAssert* as_OpAssert() { return this; }
1962 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1963 };
1964 #endif
1965
1966 // LIR_OpCompareAndSwap
1967 class LIR_OpCompareAndSwap : public LIR_Op {
1968 friend class LIR_OpVisitState;
1969
1970 private:
1971 LIR_Opr _addr;
1972 LIR_Opr _cmp_value;
1973 LIR_Opr _new_value;
1974 LIR_Opr _tmp1;
1975 LIR_Opr _tmp2;
1976
1977 public:
1978 LIR_OpCompareAndSwap(LIR_Code code, LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1979 LIR_Opr t1, LIR_Opr t2, LIR_Opr result)
1980 : LIR_Op(code, result, nullptr) // no result, no info
1981 , _addr(addr)
1982 , _cmp_value(cmp_value)
1983 , _new_value(new_value)
1984 , _tmp1(t1)
1985 , _tmp2(t2) { }
1986
1987 LIR_Opr addr() const { return _addr; }
1988 LIR_Opr cmp_value() const { return _cmp_value; }
1989 LIR_Opr new_value() const { return _new_value; }
1990 LIR_Opr tmp1() const { return _tmp1; }
1991 LIR_Opr tmp2() const { return _tmp2; }
1992
1993 virtual void emit_code(LIR_Assembler* masm);
1994 virtual LIR_OpCompareAndSwap * as_OpCompareAndSwap () { return this; }
1995 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1996 };
1997
1998 // LIR_OpProfileCall
1999 class LIR_OpProfileCall : public LIR_Op {
2000 friend class LIR_OpVisitState;
2001
2002 private:
2003 ciMethod* _profiled_method;
2004 int _profiled_bci;
2005 ciMethod* _profiled_callee;
2006 LIR_Opr _mdo;
2007 LIR_Opr _recv;
2008 LIR_Opr _tmp1;
2009 ciKlass* _known_holder;
2010
2011 public:
2012 // Destroys recv
2013 LIR_OpProfileCall(ciMethod* profiled_method, int profiled_bci, ciMethod* profiled_callee, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* known_holder)
2014 : LIR_Op(lir_profile_call, LIR_OprFact::illegalOpr, nullptr) // no result, no info
2015 , _profiled_method(profiled_method)
2016 , _profiled_bci(profiled_bci)
2017 , _profiled_callee(profiled_callee)
2018 , _mdo(mdo)
2019 , _recv(recv)
2020 , _tmp1(t1)
2021 , _known_holder(known_holder) { }
2022
2023 ciMethod* profiled_method() const { return _profiled_method; }
2024 int profiled_bci() const { return _profiled_bci; }
2025 ciMethod* profiled_callee() const { return _profiled_callee; }
2026 LIR_Opr mdo() const { return _mdo; }
2027 LIR_Opr recv() const { return _recv; }
2028 LIR_Opr tmp1() const { return _tmp1; }
2029 ciKlass* known_holder() const { return _known_holder; }
2030
2031 virtual void emit_code(LIR_Assembler* masm);
2032 virtual LIR_OpProfileCall* as_OpProfileCall() { return this; }
2033 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
2034 bool should_profile_receiver_type() const {
2035 bool callee_is_static = _profiled_callee->is_loaded() && _profiled_callee->is_static();
2036 Bytecodes::Code bc = _profiled_method->java_code_at_bci(_profiled_bci);
2037 bool call_is_virtual = (bc == Bytecodes::_invokevirtual && !_profiled_callee->can_be_statically_bound()) || bc == Bytecodes::_invokeinterface;
2038 return C1ProfileVirtualCalls && call_is_virtual && !callee_is_static;
2039 }
2040 };
2041
2042 // LIR_OpProfileType
2043 class LIR_OpProfileType : public LIR_Op {
2044 friend class LIR_OpVisitState;
2045
2046 private:
2047 LIR_Opr _mdp;
2048 LIR_Opr _obj;
2049 LIR_Opr _tmp;
2050 ciKlass* _exact_klass; // non null if we know the klass statically (no need to load it from _obj)
2051 intptr_t _current_klass; // what the profiling currently reports
2052 bool _not_null; // true if we know statically that _obj cannot be null
2053 bool _no_conflict; // true if we're profling parameters, _exact_klass is not null and we know
2054 // _exact_klass it the only possible type for this parameter in any context.
2055
2056 public:
2057 // Destroys recv
2058 LIR_OpProfileType(LIR_Opr mdp, LIR_Opr obj, ciKlass* exact_klass, intptr_t current_klass, LIR_Opr tmp, bool not_null, bool no_conflict)
2059 : LIR_Op(lir_profile_type, LIR_OprFact::illegalOpr, nullptr) // no result, no info
2060 , _mdp(mdp)
2061 , _obj(obj)
2062 , _tmp(tmp)
2063 , _exact_klass(exact_klass)
2064 , _current_klass(current_klass)
2065 , _not_null(not_null)
2066 , _no_conflict(no_conflict) { }
2067
2068 LIR_Opr mdp() const { return _mdp; }
2069 LIR_Opr obj() const { return _obj; }
2070 LIR_Opr tmp() const { return _tmp; }
2071 ciKlass* exact_klass() const { return _exact_klass; }
2072 intptr_t current_klass() const { return _current_klass; }
2073 bool not_null() const { return _not_null; }
2074 bool no_conflict() const { return _no_conflict; }
2075
2076 virtual void emit_code(LIR_Assembler* masm);
2077 virtual LIR_OpProfileType* as_OpProfileType() { return this; }
2078 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
2079 };
2080
2081 class LIR_InsertionBuffer;
2082
2083 //--------------------------------LIR_List---------------------------------------------------
2084 // Maintains a list of LIR instructions (one instance of LIR_List per basic block)
2085 // The LIR instructions are appended by the LIR_List class itself;
2086 //
2087 // Notes:
2088 // - all offsets are(should be) in bytes
2089 // - local positions are specified with an offset, with offset 0 being local 0
2090
2091 class LIR_List: public CompilationResourceObj {
2092 private:
2093 LIR_OpList _operations;
2094
2095 Compilation* _compilation;
2096 #ifndef PRODUCT
2097 BlockBegin* _block;
2098 #endif
2099 #ifdef ASSERT
2100 const char * _file;
2101 int _line;
2102 #endif
2103 #ifdef RISCV
2104 LIR_Opr _cmp_opr1;
2105 LIR_Opr _cmp_opr2;
2106 #endif
2107
2108 public:
2109 void append(LIR_Op* op) {
2110 if (op->source() == nullptr)
2111 op->set_source(_compilation->current_instruction());
2112 #ifndef PRODUCT
2113 if (PrintIRWithLIR) {
2114 _compilation->maybe_print_current_instruction();
2115 op->print(); tty->cr();
2116 }
2117 #endif // PRODUCT
2118
2119 #ifdef RISCV
2120 set_cmp_oprs(op);
2121 // lir_cmp set cmp oprs only on riscv
2122 if (op->code() == lir_cmp) return;
2123 #endif
2124
2125 _operations.append(op);
2126
2127 #ifdef ASSERT
2128 op->verify();
2129 op->set_file_and_line(_file, _line);
2130 _file = nullptr;
2131 _line = 0;
2132 #endif
2133 }
2134
2135 LIR_List(Compilation* compilation, BlockBegin* block = nullptr);
2136
2137 #ifdef ASSERT
2138 void set_file_and_line(const char * file, int line);
2139 #endif
2140
2141 #ifdef RISCV
2142 void set_cmp_oprs(LIR_Op* op);
2143 #endif
2144
2145 //---------- accessors ---------------
2146 LIR_OpList* instructions_list() { return &_operations; }
2147 int length() const { return _operations.length(); }
2148 LIR_Op* at(int i) const { return _operations.at(i); }
2149
2150 NOT_PRODUCT(BlockBegin* block() const { return _block; });
2151
2152 // insert LIR_Ops in buffer to right places in LIR_List
2153 void append(LIR_InsertionBuffer* buffer);
2154
2155 //---------- mutators ---------------
2156 void insert_before(int i, LIR_List* op_list) { _operations.insert_before(i, op_list->instructions_list()); }
2157 void insert_before(int i, LIR_Op* op) { _operations.insert_before(i, op); }
2158 void remove_at(int i) { _operations.remove_at(i); }
2159
2160 //---------- printing -------------
2161 void print_instructions() PRODUCT_RETURN;
2162
2163
2164 //---------- instructions -------------
2165 void call_opt_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2166 address dest, LIR_OprList* arguments,
2167 CodeEmitInfo* info) {
2168 append(new LIR_OpJavaCall(lir_optvirtual_call, method, receiver, result, dest, arguments, info));
2169 }
2170 void call_static(ciMethod* method, LIR_Opr result,
2171 address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
2172 append(new LIR_OpJavaCall(lir_static_call, method, LIR_OprFact::illegalOpr, result, dest, arguments, info));
2173 }
2174 void call_icvirtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2175 address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
2176 append(new LIR_OpJavaCall(lir_icvirtual_call, method, receiver, result, dest, arguments, info));
2177 }
2178 void call_dynamic(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2179 address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
2180 append(new LIR_OpJavaCall(lir_dynamic_call, method, receiver, result, dest, arguments, info));
2181 }
2182
2183 void get_thread(LIR_Opr result) { append(new LIR_Op0(lir_get_thread, result)); }
2184 void membar() { append(new LIR_Op0(lir_membar)); }
2185 void membar_acquire() { append(new LIR_Op0(lir_membar_acquire)); }
2186 void membar_release() { append(new LIR_Op0(lir_membar_release)); }
2187 void membar_loadload() { append(new LIR_Op0(lir_membar_loadload)); }
2188 void membar_storestore() { append(new LIR_Op0(lir_membar_storestore)); }
2189 void membar_loadstore() { append(new LIR_Op0(lir_membar_loadstore)); }
2190 void membar_storeload() { append(new LIR_Op0(lir_membar_storeload)); }
2191
2192 void nop() { append(new LIR_Op0(lir_nop)); }
2193
2194 void std_entry(LIR_Opr receiver) { append(new LIR_Op0(lir_std_entry, receiver)); }
2195 void osr_entry(LIR_Opr osrPointer) { append(new LIR_Op0(lir_osr_entry, osrPointer)); }
2196
2197 void on_spin_wait() { append(new LIR_Op0(lir_on_spin_wait)); }
2198
2199 void branch_destination(Label* lbl) { append(new LIR_OpLabel(lbl)); }
2200
2201 void leal(LIR_Opr from, LIR_Opr result_reg, LIR_PatchCode patch_code = lir_patch_none, CodeEmitInfo* info = nullptr) { append(new LIR_Op1(lir_leal, from, result_reg, T_ILLEGAL, patch_code, info)); }
2202
2203 // result is a stack location for old backend and vreg for UseLinearScan
2204 // stack_loc_temp is an illegal register for old backend
2205 void roundfp(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result) { append(new LIR_OpRoundFP(reg, stack_loc_temp, result)); }
2206 void move(LIR_Opr src, LIR_Opr dst, CodeEmitInfo* info = nullptr) { append(new LIR_Op1(lir_move, src, dst, dst->type(), lir_patch_none, info)); }
2207 void move(LIR_Address* src, LIR_Opr dst, CodeEmitInfo* info = nullptr) { append(new LIR_Op1(lir_move, LIR_OprFact::address(src), dst, src->type(), lir_patch_none, info)); }
2208 void move(LIR_Opr src, LIR_Address* dst, CodeEmitInfo* info = nullptr) { append(new LIR_Op1(lir_move, src, LIR_OprFact::address(dst), dst->type(), lir_patch_none, info)); }
2209 void move_wide(LIR_Address* src, LIR_Opr dst, CodeEmitInfo* info = nullptr) {
2210 if (UseCompressedOops) {
2211 append(new LIR_Op1(lir_move, LIR_OprFact::address(src), dst, src->type(), lir_patch_none, info, lir_move_wide));
2212 } else {
2213 move(src, dst, info);
2214 }
2215 }
2216 void move_wide(LIR_Opr src, LIR_Address* dst, CodeEmitInfo* info = nullptr) {
2217 if (UseCompressedOops) {
2218 append(new LIR_Op1(lir_move, src, LIR_OprFact::address(dst), dst->type(), lir_patch_none, info, lir_move_wide));
2219 } else {
2220 move(src, dst, info);
2221 }
2222 }
2223 void volatile_move(LIR_Opr src, LIR_Opr dst, BasicType type, CodeEmitInfo* info = nullptr, LIR_PatchCode patch_code = lir_patch_none) { append(new LIR_Op1(lir_move, src, dst, type, patch_code, info, lir_move_volatile)); }
2224
2225 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)); }
2226 void oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info);
2227
2228 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)); }
2229 void klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info);
2230
2231 void safepoint(LIR_Opr tmp, CodeEmitInfo* info) { append(new LIR_Op1(lir_safepoint, tmp, info)); }
2232 void return_op(LIR_Opr result) { append(new LIR_OpReturn(result)); }
2233
2234 void convert(Bytecodes::Code code, LIR_Opr left, LIR_Opr dst, ConversionStub* stub = nullptr/*, bool is_32bit = false*/) { append(new LIR_OpConvert(code, left, dst, stub)); }
2235
2236 void logical_and (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_and, left, right, dst)); }
2237 void logical_or (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_or, left, right, dst)); }
2238 void logical_xor (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_xor, left, right, dst)); }
2239
2240 void null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null = false);
2241 void throw_exception(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) {
2242 append(new LIR_Op2(lir_throw, exceptionPC, exceptionOop, LIR_OprFact::illegalOpr, info));
2243 }
2244 void unwind_exception(LIR_Opr exceptionOop) {
2245 append(new LIR_Op1(lir_unwind, exceptionOop));
2246 }
2247
2248 void push(LIR_Opr opr) { append(new LIR_Op1(lir_push, opr)); }
2249 void pop(LIR_Opr reg) { append(new LIR_Op1(lir_pop, reg)); }
2250
2251 void cmp(LIR_Condition condition, LIR_Opr left, LIR_Opr right, CodeEmitInfo* info = nullptr) {
2252 append(new LIR_Op2(lir_cmp, condition, left, right, info));
2253 }
2254 void cmp(LIR_Condition condition, LIR_Opr left, int right, CodeEmitInfo* info = nullptr) {
2255 cmp(condition, left, LIR_OprFact::intConst(right), info);
2256 }
2257
2258 void cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info);
2259 void cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info);
2260
2261 void cmove(LIR_Condition condition, LIR_Opr src1, LIR_Opr src2, LIR_Opr dst, BasicType type,
2262 LIR_Opr cmp_opr1 = LIR_OprFact::illegalOpr, LIR_Opr cmp_opr2 = LIR_OprFact::illegalOpr) {
2263 append(new LIR_Op4(lir_cmove, condition, src1, src2, cmp_opr1, cmp_opr2, dst, type));
2264 }
2265
2266 void cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
2267 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr);
2268 void cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
2269 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr);
2270 void cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
2271 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr);
2272
2273 void abs (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_abs , from, tmp, to)); }
2274 void negate(LIR_Opr from, LIR_Opr to, LIR_Opr tmp = LIR_OprFact::illegalOpr) { append(new LIR_Op2(lir_neg, from, tmp, to)); }
2275 void sqrt(LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_sqrt, from, tmp, to)); }
2276 void fmad(LIR_Opr from, LIR_Opr from1, LIR_Opr from2, LIR_Opr to) { append(new LIR_Op3(lir_fmad, from, from1, from2, to)); }
2277 void fmaf(LIR_Opr from, LIR_Opr from1, LIR_Opr from2, LIR_Opr to) { append(new LIR_Op3(lir_fmaf, from, from1, from2, to)); }
2278 void log10 (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_log10, from, LIR_OprFact::illegalOpr, to, tmp)); }
2279 void tan (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_Op2(lir_tan , from, tmp1, to, tmp2)); }
2280 void f2hf(LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_f2hf, from, tmp, to)); }
2281 void hf2f(LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_hf2f, from, tmp, to)); }
2282
2283 void add (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_add, left, right, res)); }
2284 void sub (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = nullptr) { append(new LIR_Op2(lir_sub, left, right, res, info)); }
2285 void mul (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_mul, left, right, res)); }
2286 void mul (LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_mul, left, right, res, tmp)); }
2287 void div (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = nullptr) { append(new LIR_Op2(lir_div, left, right, res, info)); }
2288 void div (LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_div, left, right, res, tmp)); }
2289 void rem (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = nullptr) { append(new LIR_Op2(lir_rem, left, right, res, info)); }
2290
2291 void volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2292 void volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code);
2293
2294 void load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info = nullptr, LIR_PatchCode patch_code = lir_patch_none);
2295
2296 void store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2297 void store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2298 void store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info = nullptr, LIR_PatchCode patch_code = lir_patch_none);
2299 void volatile_store_mem_reg(LIR_Opr src, LIR_Address* address, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2300 void volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code);
2301
2302 void idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2303 void idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2304 void irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2305 void irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2306
2307 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);
2308 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);
2309
2310 // jump is an unconditional branch
2311 void jump(BlockBegin* block) {
2312 append(new LIR_OpBranch(lir_cond_always, block));
2313 }
2314 void jump(CodeStub* stub) {
2315 append(new LIR_OpBranch(lir_cond_always, stub));
2316 }
2317 void branch(LIR_Condition cond, Label* lbl) {
2318 append(new LIR_OpBranch(cond, lbl));
2319 }
2320 // Should not be used for fp comparisons
2321 void branch(LIR_Condition cond, BlockBegin* block) {
2322 append(new LIR_OpBranch(cond, block));
2323 }
2324 // Should not be used for fp comparisons
2325 void branch(LIR_Condition cond, CodeStub* stub) {
2326 append(new LIR_OpBranch(cond, stub));
2327 }
2328 // Should only be used for fp comparisons
2329 void branch(LIR_Condition cond, BlockBegin* block, BlockBegin* unordered) {
2330 append(new LIR_OpBranch(cond, block, unordered));
2331 }
2332
2333 void shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
2334 void shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
2335 void unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
2336
2337 void shift_left(LIR_Opr value, int count, LIR_Opr dst) { shift_left(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2338 void shift_right(LIR_Opr value, int count, LIR_Opr dst) { shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2339 void unsigned_shift_right(LIR_Opr value, int count, LIR_Opr dst) { unsigned_shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2340
2341 void lcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_cmp_l2i, left, right, dst)); }
2342 void fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less);
2343
2344 void call_runtime_leaf(address routine, LIR_Opr tmp, LIR_Opr result, LIR_OprList* arguments) {
2345 append(new LIR_OpRTCall(routine, tmp, result, arguments));
2346 }
2347
2348 void call_runtime(address routine, LIR_Opr tmp, LIR_Opr result,
2349 LIR_OprList* arguments, CodeEmitInfo* info) {
2350 append(new LIR_OpRTCall(routine, tmp, result, arguments, info));
2351 }
2352
2353 void load_stack_address_monitor(int monitor_ix, LIR_Opr dst) { append(new LIR_Op1(lir_monaddr, LIR_OprFact::intConst(monitor_ix), dst)); }
2354 void unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub);
2355 void lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info);
2356
2357 void breakpoint() { append(new LIR_Op0(lir_breakpoint)); }
2358
2359 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)); }
2360
2361 void update_crc32(LIR_Opr crc, LIR_Opr val, LIR_Opr res) { append(new LIR_OpUpdateCRC32(crc, val, res)); }
2362
2363 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);
2364 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);
2365
2366 void checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
2367 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
2368 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
2369 ciMethod* profiled_method, int profiled_bci);
2370 // MethodData* profiling
2371 void profile_call(ciMethod* method, int bci, ciMethod* callee, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* cha_klass) {
2372 append(new LIR_OpProfileCall(method, bci, callee, mdo, recv, t1, cha_klass));
2373 }
2374 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) {
2375 append(new LIR_OpProfileType(LIR_OprFact::address(mdp), obj, exact_klass, current_klass, tmp, not_null, no_conflict));
2376 }
2377
2378 void xadd(LIR_Opr src, LIR_Opr add, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_xadd, src, add, res, tmp)); }
2379 void xchg(LIR_Opr src, LIR_Opr set, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_xchg, src, set, res, tmp)); }
2380
2381 void load_klass(LIR_Opr obj, LIR_Opr result, CodeEmitInfo* info, CodeStub* stub) { append(new LIR_OpLoadKlass(obj, result, info, stub)); }
2382
2383 #ifdef ASSERT
2384 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)); }
2385 #endif
2386 };
2387
2388 void print_LIR(BlockList* blocks);
2389
2390 class LIR_InsertionBuffer : public CompilationResourceObj {
2391 private:
2392 LIR_List* _lir; // the lir list where ops of this buffer should be inserted later (null when uninitialized)
2393
2394 // list of insertion points. index and count are stored alternately:
2395 // _index_and_count[i * 2]: the index into lir list where "count" ops should be inserted
2396 // _index_and_count[i * 2 + 1]: the number of ops to be inserted at index
2397 intStack _index_and_count;
2398
2399 // the LIR_Ops to be inserted
2400 LIR_OpList _ops;
2401
2402 void append_new(int index, int count) { _index_and_count.append(index); _index_and_count.append(count); }
2403 void set_index_at(int i, int value) { _index_and_count.at_put((i << 1), value); }
2404 void set_count_at(int i, int value) { _index_and_count.at_put((i << 1) + 1, value); }
2405
2406 #ifdef ASSERT
2407 void verify();
2408 #endif
2409 public:
2410 LIR_InsertionBuffer() : _lir(nullptr), _index_and_count(8), _ops(8) { }
2411
2412 // must be called before using the insertion buffer
2413 void init(LIR_List* lir) { assert(!initialized(), "already initialized"); _lir = lir; _index_and_count.clear(); _ops.clear(); }
2414 bool initialized() const { return _lir != nullptr; }
2415 // called automatically when the buffer is appended to the LIR_List
2416 void finish() { _lir = nullptr; }
2417
2418 // accessors
2419 LIR_List* lir_list() const { return _lir; }
2420 int number_of_insertion_points() const { return _index_and_count.length() >> 1; }
2421 int index_at(int i) const { return _index_and_count.at((i << 1)); }
2422 int count_at(int i) const { return _index_and_count.at((i << 1) + 1); }
2423
2424 int number_of_ops() const { return _ops.length(); }
2425 LIR_Op* op_at(int i) const { return _ops.at(i); }
2426
2427 // append an instruction to the buffer
2428 void append(int index, LIR_Op* op);
2429
2430 // instruction
2431 void move(int index, LIR_Opr src, LIR_Opr dst, CodeEmitInfo* info = nullptr) { append(index, new LIR_Op1(lir_move, src, dst, dst->type(), lir_patch_none, info)); }
2432 };
2433
2434
2435 //
2436 // LIR_OpVisitState is used for manipulating LIR_Ops in an abstract way.
2437 // Calling a LIR_Op's visit function with a LIR_OpVisitState causes
2438 // information about the input, output and temporaries used by the
2439 // op to be recorded. It also records whether the op has call semantics
2440 // and also records all the CodeEmitInfos used by this op.
2441 //
2442
2443
2444 class LIR_OpVisitState: public StackObj {
2445 public:
2446 typedef enum { inputMode, firstMode = inputMode, tempMode, outputMode, numModes, invalidMode = -1 } OprMode;
2447
2448 enum {
2449 maxNumberOfOperands = 21,
2450 maxNumberOfInfos = 4
2451 };
2452
2453 private:
2454 LIR_Op* _op;
2455
2456 // optimization: the operands and infos are not stored in a variable-length
2457 // list, but in a fixed-size array to save time of size checks and resizing
2458 int _oprs_len[numModes];
2459 LIR_Opr* _oprs_new[numModes][maxNumberOfOperands];
2460 int _info_len;
2461 CodeEmitInfo* _info_new[maxNumberOfInfos];
2462
2463 bool _has_call;
2464 bool _has_slow_case;
2465
2466
2467 // only include register operands
2468 // addresses are decomposed to the base and index registers
2469 // constants and stack operands are ignored
2470 void append(LIR_Opr& opr, OprMode mode) {
2471 assert(opr->is_valid(), "should not call this otherwise");
2472 assert(mode >= 0 && mode < numModes, "bad mode");
2473
2474 if (opr->is_register()) {
2475 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
2476 _oprs_new[mode][_oprs_len[mode]++] = &opr;
2477
2478 } else if (opr->is_pointer()) {
2479 LIR_Address* address = opr->as_address_ptr();
2480 if (address != nullptr) {
2481 // special handling for addresses: add base and index register of the address
2482 // both are always input operands or temp if we want to extend
2483 // their liveness!
2484 if (mode == outputMode) {
2485 mode = inputMode;
2486 }
2487 assert (mode == inputMode || mode == tempMode, "input or temp only for addresses");
2488 if (address->_base->is_valid()) {
2489 assert(address->_base->is_register(), "must be");
2490 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
2491 _oprs_new[mode][_oprs_len[mode]++] = &address->_base;
2492 }
2493 if (address->_index->is_valid()) {
2494 assert(address->_index->is_register(), "must be");
2495 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
2496 _oprs_new[mode][_oprs_len[mode]++] = &address->_index;
2497 }
2498
2499 } else {
2500 assert(opr->is_constant(), "constant operands are not processed");
2501 }
2502 } else {
2503 assert(opr->is_stack(), "stack operands are not processed");
2504 }
2505 }
2506
2507 void append(CodeEmitInfo* info) {
2508 assert(info != nullptr, "should not call this otherwise");
2509 assert(_info_len < maxNumberOfInfos, "array overflow");
2510 _info_new[_info_len++] = info;
2511 }
2512
2513 public:
2514 LIR_OpVisitState() { reset(); }
2515
2516 LIR_Op* op() const { return _op; }
2517 void set_op(LIR_Op* op) { reset(); _op = op; }
2518
2519 bool has_call() const { return _has_call; }
2520 bool has_slow_case() const { return _has_slow_case; }
2521
2522 void reset() {
2523 _op = nullptr;
2524 _has_call = false;
2525 _has_slow_case = false;
2526
2527 _oprs_len[inputMode] = 0;
2528 _oprs_len[tempMode] = 0;
2529 _oprs_len[outputMode] = 0;
2530 _info_len = 0;
2531 }
2532
2533
2534 int opr_count(OprMode mode) const {
2535 assert(mode >= 0 && mode < numModes, "bad mode");
2536 return _oprs_len[mode];
2537 }
2538
2539 LIR_Opr opr_at(OprMode mode, int index) const {
2540 assert(mode >= 0 && mode < numModes, "bad mode");
2541 assert(index >= 0 && index < _oprs_len[mode], "index out of bound");
2542 return *_oprs_new[mode][index];
2543 }
2544
2545 void set_opr_at(OprMode mode, int index, LIR_Opr opr) const {
2546 assert(mode >= 0 && mode < numModes, "bad mode");
2547 assert(index >= 0 && index < _oprs_len[mode], "index out of bound");
2548 *_oprs_new[mode][index] = opr;
2549 }
2550
2551 int info_count() const {
2552 return _info_len;
2553 }
2554
2555 CodeEmitInfo* info_at(int index) const {
2556 assert(index < _info_len, "index out of bounds");
2557 return _info_new[index];
2558 }
2559
2560 XHandlers* all_xhandler();
2561
2562 // collects all register operands of the instruction
2563 void visit(LIR_Op* op);
2564
2565 #ifdef ASSERT
2566 // check that an operation has no operands
2567 bool no_operands(LIR_Op* op);
2568 #endif
2569
2570 // LIR_Op visitor functions use these to fill in the state
2571 void do_input(LIR_Opr& opr) { append(opr, LIR_OpVisitState::inputMode); }
2572 void do_output(LIR_Opr& opr) { append(opr, LIR_OpVisitState::outputMode); }
2573 void do_temp(LIR_Opr& opr) { append(opr, LIR_OpVisitState::tempMode); }
2574 void do_info(CodeEmitInfo* info) { append(info); }
2575
2576 void do_stub(CodeStub* stub);
2577 void do_call() { _has_call = true; }
2578 void do_slow_case() { _has_slow_case = true; }
2579 void do_slow_case(CodeEmitInfo* info) {
2580 _has_slow_case = true;
2581 append(info);
2582 }
2583 };
2584
2585
2586 inline LIR_Opr LIR_Opr::illegalOpr() { return LIR_OprFact::illegalOpr; };
2587
2588 inline LIR_Opr LIR_Opr::nullOpr() { return LIR_OprFact::nullOpr; };
2589
2590 #endif // SHARE_C1_C1_LIR_HPP