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src/share/vm/c1/c1_LIR.hpp@f90c822e73f8
src/share/vm/c1/c1_LIR.hpp
Wed, 27 Apr 2016 01:25:04 +0800
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- aoqi
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changeset: 6782:28b50d07f6f8
tag: jdk8u25-b17
1 /*
2 * Copyright (c) 2000, 2013, 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 */
25 #ifndef SHARE_VM_C1_C1_LIR_HPP
26 #define SHARE_VM_C1_C1_LIR_HPP
28 #include "c1/c1_ValueType.hpp"
29 #include "oops/method.hpp"
31 class BlockBegin;
32 class BlockList;
33 class LIR_Assembler;
34 class CodeEmitInfo;
35 class CodeStub;
36 class CodeStubList;
37 class ArrayCopyStub;
38 class LIR_Op;
39 class ciType;
40 class ValueType;
41 class LIR_OpVisitState;
42 class FpuStackSim;
44 //---------------------------------------------------------------------
45 // LIR Operands
46 // LIR_OprDesc
47 // LIR_OprPtr
48 // LIR_Const
49 // LIR_Address
50 //---------------------------------------------------------------------
51 class LIR_OprDesc;
52 class LIR_OprPtr;
53 class LIR_Const;
54 class LIR_Address;
55 class LIR_OprVisitor;
58 typedef LIR_OprDesc* LIR_Opr;
59 typedef int RegNr;
61 define_array(LIR_OprArray, LIR_Opr)
62 define_stack(LIR_OprList, LIR_OprArray)
64 define_array(LIR_OprRefArray, LIR_Opr*)
65 define_stack(LIR_OprRefList, LIR_OprRefArray)
67 define_array(CodeEmitInfoArray, CodeEmitInfo*)
68 define_stack(CodeEmitInfoList, CodeEmitInfoArray)
70 define_array(LIR_OpArray, LIR_Op*)
71 define_stack(LIR_OpList, LIR_OpArray)
73 // define LIR_OprPtr early so LIR_OprDesc can refer to it
74 class LIR_OprPtr: public CompilationResourceObj {
75 public:
76 bool is_oop_pointer() const { return (type() == T_OBJECT); }
77 bool is_float_kind() const { BasicType t = type(); return (t == T_FLOAT) || (t == T_DOUBLE); }
79 virtual LIR_Const* as_constant() { return NULL; }
80 virtual LIR_Address* as_address() { return NULL; }
81 virtual BasicType type() const = 0;
82 virtual void print_value_on(outputStream* out) const = 0;
83 };
87 // LIR constants
88 class LIR_Const: public LIR_OprPtr {
89 private:
90 JavaValue _value;
92 void type_check(BasicType t) const { assert(type() == t, "type check"); }
93 void type_check(BasicType t1, BasicType t2) const { assert(type() == t1 || type() == t2, "type check"); }
94 void type_check(BasicType t1, BasicType t2, BasicType t3) const { assert(type() == t1 || type() == t2 || type() == t3, "type check"); }
96 public:
97 LIR_Const(jint i, bool is_address=false) { _value.set_type(is_address?T_ADDRESS:T_INT); _value.set_jint(i); }
98 LIR_Const(jlong l) { _value.set_type(T_LONG); _value.set_jlong(l); }
99 LIR_Const(jfloat f) { _value.set_type(T_FLOAT); _value.set_jfloat(f); }
100 LIR_Const(jdouble d) { _value.set_type(T_DOUBLE); _value.set_jdouble(d); }
101 LIR_Const(jobject o) { _value.set_type(T_OBJECT); _value.set_jobject(o); }
102 LIR_Const(void* p) {
103 #ifdef _LP64
104 assert(sizeof(jlong) >= sizeof(p), "too small");;
105 _value.set_type(T_LONG); _value.set_jlong((jlong)p);
106 #else
107 assert(sizeof(jint) >= sizeof(p), "too small");;
108 _value.set_type(T_INT); _value.set_jint((jint)p);
109 #endif
110 }
111 LIR_Const(Metadata* m) {
112 _value.set_type(T_METADATA);
113 #ifdef _LP64
114 _value.set_jlong((jlong)m);
115 #else
116 _value.set_jint((jint)m);
117 #endif // _LP64
118 }
120 virtual BasicType type() const { return _value.get_type(); }
121 virtual LIR_Const* as_constant() { return this; }
123 jint as_jint() const { type_check(T_INT, T_ADDRESS); return _value.get_jint(); }
124 jlong as_jlong() const { type_check(T_LONG ); return _value.get_jlong(); }
125 jfloat as_jfloat() const { type_check(T_FLOAT ); return _value.get_jfloat(); }
126 jdouble as_jdouble() const { type_check(T_DOUBLE); return _value.get_jdouble(); }
127 jobject as_jobject() const { type_check(T_OBJECT); return _value.get_jobject(); }
128 jint as_jint_lo() const { type_check(T_LONG ); return low(_value.get_jlong()); }
129 jint as_jint_hi() const { type_check(T_LONG ); return high(_value.get_jlong()); }
131 #ifdef _LP64
132 address as_pointer() const { type_check(T_LONG ); return (address)_value.get_jlong(); }
133 Metadata* as_metadata() const { type_check(T_METADATA); return (Metadata*)_value.get_jlong(); }
134 #else
135 address as_pointer() const { type_check(T_INT ); return (address)_value.get_jint(); }
136 Metadata* as_metadata() const { type_check(T_METADATA); return (Metadata*)_value.get_jint(); }
137 #endif
140 jint as_jint_bits() const { type_check(T_FLOAT, T_INT, T_ADDRESS); return _value.get_jint(); }
141 jint as_jint_lo_bits() const {
142 if (type() == T_DOUBLE) {
143 return low(jlong_cast(_value.get_jdouble()));
144 } else {
145 return as_jint_lo();
146 }
147 }
148 jint as_jint_hi_bits() const {
149 if (type() == T_DOUBLE) {
150 return high(jlong_cast(_value.get_jdouble()));
151 } else {
152 return as_jint_hi();
153 }
154 }
155 jlong as_jlong_bits() const {
156 if (type() == T_DOUBLE) {
157 return jlong_cast(_value.get_jdouble());
158 } else {
159 return as_jlong();
160 }
161 }
163 virtual void print_value_on(outputStream* out) const PRODUCT_RETURN;
166 bool is_zero_float() {
167 jfloat f = as_jfloat();
168 jfloat ok = 0.0f;
169 return jint_cast(f) == jint_cast(ok);
170 }
172 bool is_one_float() {
173 jfloat f = as_jfloat();
174 return !g_isnan(f) && g_isfinite(f) && f == 1.0;
175 }
177 bool is_zero_double() {
178 jdouble d = as_jdouble();
179 jdouble ok = 0.0;
180 return jlong_cast(d) == jlong_cast(ok);
181 }
183 bool is_one_double() {
184 jdouble d = as_jdouble();
185 return !g_isnan(d) && g_isfinite(d) && d == 1.0;
186 }
187 };
190 //---------------------LIR Operand descriptor------------------------------------
191 //
192 // The class LIR_OprDesc represents a LIR instruction operand;
193 // it can be a register (ALU/FPU), stack location or a constant;
194 // Constants and addresses are represented as resource area allocated
195 // structures (see above).
196 // Registers and stack locations are inlined into the this pointer
197 // (see value function).
199 class LIR_OprDesc: public CompilationResourceObj {
200 public:
201 // value structure:
202 // data opr-type opr-kind
203 // +--------------+-------+-------+
204 // [max...........|7 6 5 4|3 2 1 0]
205 // ^
206 // is_pointer bit
207 //
208 // lowest bit cleared, means it is a structure pointer
209 // we need 4 bits to represent types
211 private:
212 friend class LIR_OprFact;
214 // Conversion
215 intptr_t value() const { return (intptr_t) this; }
217 bool check_value_mask(intptr_t mask, intptr_t masked_value) const {
218 return (value() & mask) == masked_value;
219 }
221 enum OprKind {
222 pointer_value = 0
223 , stack_value = 1
224 , cpu_register = 3
225 , fpu_register = 5
226 , illegal_value = 7
227 };
229 enum OprBits {
230 pointer_bits = 1
231 , kind_bits = 3
232 , type_bits = 4
233 , size_bits = 2
234 , destroys_bits = 1
235 , virtual_bits = 1
236 , is_xmm_bits = 1
237 , last_use_bits = 1
238 , is_fpu_stack_offset_bits = 1 // used in assertion checking on x86 for FPU stack slot allocation
239 , non_data_bits = kind_bits + type_bits + size_bits + destroys_bits + last_use_bits +
240 is_fpu_stack_offset_bits + virtual_bits + is_xmm_bits
241 , data_bits = BitsPerInt - non_data_bits
242 , reg_bits = data_bits / 2 // for two registers in one value encoding
243 };
245 enum OprShift {
246 kind_shift = 0
247 , type_shift = kind_shift + kind_bits
248 , size_shift = type_shift + type_bits
249 , destroys_shift = size_shift + size_bits
250 , last_use_shift = destroys_shift + destroys_bits
251 , is_fpu_stack_offset_shift = last_use_shift + last_use_bits
252 , virtual_shift = is_fpu_stack_offset_shift + is_fpu_stack_offset_bits
253 , is_xmm_shift = virtual_shift + virtual_bits
254 , data_shift = is_xmm_shift + is_xmm_bits
255 , reg1_shift = data_shift
256 , reg2_shift = data_shift + reg_bits
258 };
260 enum OprSize {
261 single_size = 0 << size_shift
262 , double_size = 1 << size_shift
263 };
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 };
278 uintptr_t data() const { return value() >> data_shift; }
279 int lo_reg_half() const { return data() & lower_reg_mask; }
280 int hi_reg_half() const { return (data() >> reg_bits) & lower_reg_mask; }
281 OprKind kind_field() const { return (OprKind)(value() & kind_mask); }
282 OprSize size_field() const { return (OprSize)(value() & size_mask); }
284 static char type_char(BasicType t);
286 public:
287 enum {
288 vreg_base = ConcreteRegisterImpl::number_of_registers,
289 vreg_max = (1 << data_bits) - 1
290 };
292 static inline LIR_Opr illegalOpr();
294 enum OprType {
295 unknown_type = 0 << type_shift // means: not set (catch uninitialized types)
296 , int_type = 1 << type_shift
297 , long_type = 2 << type_shift
298 , object_type = 3 << type_shift
299 , address_type = 4 << type_shift
300 , float_type = 5 << type_shift
301 , double_type = 6 << type_shift
302 , metadata_type = 7 << type_shift
303 };
304 friend OprType as_OprType(BasicType t);
305 friend BasicType as_BasicType(OprType t);
307 OprType type_field_valid() const { assert(is_register() || is_stack(), "should not be called otherwise"); return (OprType)(value() & type_mask); }
308 OprType type_field() const { return is_illegal() ? unknown_type : (OprType)(value() & type_mask); }
310 static OprSize size_for(BasicType t) {
311 switch (t) {
312 case T_LONG:
313 case T_DOUBLE:
314 return double_size;
315 break;
317 case T_FLOAT:
318 case T_BOOLEAN:
319 case T_CHAR:
320 case T_BYTE:
321 case T_SHORT:
322 case T_INT:
323 case T_ADDRESS:
324 case T_OBJECT:
325 case T_ARRAY:
326 case T_METADATA:
327 return single_size;
328 break;
330 default:
331 ShouldNotReachHere();
332 return single_size;
333 }
334 }
337 void validate_type() const PRODUCT_RETURN;
339 BasicType type() const {
340 if (is_pointer()) {
341 return pointer()->type();
342 }
343 return as_BasicType(type_field());
344 }
347 ValueType* value_type() const { return as_ValueType(type()); }
349 char type_char() const { return type_char((is_pointer()) ? pointer()->type() : type()); }
351 bool is_equal(LIR_Opr opr) const { return this == opr; }
352 // checks whether types are same
353 bool is_same_type(LIR_Opr opr) const {
354 assert(type_field() != unknown_type &&
355 opr->type_field() != unknown_type, "shouldn't see unknown_type");
356 return type_field() == opr->type_field();
357 }
358 bool is_same_register(LIR_Opr opr) {
359 return (is_register() && opr->is_register() &&
360 kind_field() == opr->kind_field() &&
361 (value() & no_type_mask) == (opr->value() & no_type_mask));
362 }
364 bool is_pointer() const { return check_value_mask(pointer_mask, pointer_value); }
365 bool is_illegal() const { return kind_field() == illegal_value; }
366 bool is_valid() const { return kind_field() != illegal_value; }
368 bool is_register() const { return is_cpu_register() || is_fpu_register(); }
369 bool is_virtual() const { return is_virtual_cpu() || is_virtual_fpu(); }
371 bool is_constant() const { return is_pointer() && pointer()->as_constant() != NULL; }
372 bool is_address() const { return is_pointer() && pointer()->as_address() != NULL; }
374 bool is_float_kind() const { return is_pointer() ? pointer()->is_float_kind() : (kind_field() == fpu_register); }
375 bool is_oop() const;
377 // semantic for fpu- and xmm-registers:
378 // * is_float and is_double return true for xmm_registers
379 // (so is_single_fpu and is_single_xmm are true)
380 // * So you must always check for is_???_xmm prior to is_???_fpu to
381 // distinguish between fpu- and xmm-registers
383 bool is_stack() const { validate_type(); return check_value_mask(kind_mask, stack_value); }
384 bool is_single_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | single_size); }
385 bool is_double_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | double_size); }
387 bool is_cpu_register() const { validate_type(); return check_value_mask(kind_mask, cpu_register); }
388 bool is_virtual_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register | virtual_mask); }
389 bool is_fixed_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register); }
390 bool is_single_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | single_size); }
391 bool is_double_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | double_size); }
393 bool is_fpu_register() const { validate_type(); return check_value_mask(kind_mask, fpu_register); }
394 bool is_virtual_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register | virtual_mask); }
395 bool is_fixed_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register); }
396 bool is_single_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | single_size); }
397 bool is_double_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | double_size); }
399 bool is_xmm_register() const { validate_type(); return check_value_mask(kind_mask | is_xmm_mask, fpu_register | is_xmm_mask); }
400 bool is_single_xmm() const { validate_type(); return check_value_mask(kind_mask | size_mask | is_xmm_mask, fpu_register | single_size | is_xmm_mask); }
401 bool is_double_xmm() const { validate_type(); return check_value_mask(kind_mask | size_mask | is_xmm_mask, fpu_register | double_size | is_xmm_mask); }
403 // fast accessor functions for special bits that do not work for pointers
404 // (in this functions, the check for is_pointer() is omitted)
405 bool is_single_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, single_size); }
406 bool is_double_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, double_size); }
407 bool is_virtual_register() const { assert(is_register(), "type check"); return check_value_mask(virtual_mask, virtual_mask); }
408 bool is_oop_register() const { assert(is_register() || is_stack(), "type check"); return type_field_valid() == object_type; }
409 BasicType type_register() const { assert(is_register() || is_stack(), "type check"); return as_BasicType(type_field_valid()); }
411 bool is_last_use() const { assert(is_register(), "only works for registers"); return (value() & last_use_mask) != 0; }
412 bool is_fpu_stack_offset() const { assert(is_register(), "only works for registers"); return (value() & is_fpu_stack_offset_mask) != 0; }
413 LIR_Opr make_last_use() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | last_use_mask); }
414 LIR_Opr make_fpu_stack_offset() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | is_fpu_stack_offset_mask); }
417 int single_stack_ix() const { assert(is_single_stack() && !is_virtual(), "type check"); return (int)data(); }
418 int double_stack_ix() const { assert(is_double_stack() && !is_virtual(), "type check"); return (int)data(); }
419 RegNr cpu_regnr() const { assert(is_single_cpu() && !is_virtual(), "type check"); return (RegNr)data(); }
420 RegNr cpu_regnrLo() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
421 RegNr cpu_regnrHi() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
422 RegNr fpu_regnr() const { assert(is_single_fpu() && !is_virtual(), "type check"); return (RegNr)data(); }
423 RegNr fpu_regnrLo() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
424 RegNr fpu_regnrHi() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
425 RegNr xmm_regnr() const { assert(is_single_xmm() && !is_virtual(), "type check"); return (RegNr)data(); }
426 RegNr xmm_regnrLo() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
427 RegNr xmm_regnrHi() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
428 int vreg_number() const { assert(is_virtual(), "type check"); return (RegNr)data(); }
430 LIR_OprPtr* pointer() const { assert(is_pointer(), "type check"); return (LIR_OprPtr*)this; }
431 LIR_Const* as_constant_ptr() const { return pointer()->as_constant(); }
432 LIR_Address* as_address_ptr() const { return pointer()->as_address(); }
434 Register as_register() const;
435 Register as_register_lo() const;
436 Register as_register_hi() const;
438 Register as_pointer_register() {
439 #ifdef _LP64
440 if (is_double_cpu()) {
441 assert(as_register_lo() == as_register_hi(), "should be a single register");
442 return as_register_lo();
443 }
444 #endif
445 return as_register();
446 }
448 #ifdef X86
449 XMMRegister as_xmm_float_reg() const;
450 XMMRegister as_xmm_double_reg() const;
451 // for compatibility with RInfo
452 int fpu () const { return lo_reg_half(); }
453 #endif // X86
454 #if defined(SPARC) || defined(ARM) || defined(PPC)
455 FloatRegister as_float_reg () const;
456 FloatRegister as_double_reg () const;
457 #endif
459 jint as_jint() const { return as_constant_ptr()->as_jint(); }
460 jlong as_jlong() const { return as_constant_ptr()->as_jlong(); }
461 jfloat as_jfloat() const { return as_constant_ptr()->as_jfloat(); }
462 jdouble as_jdouble() const { return as_constant_ptr()->as_jdouble(); }
463 jobject as_jobject() const { return as_constant_ptr()->as_jobject(); }
465 void print() const PRODUCT_RETURN;
466 void print(outputStream* out) const PRODUCT_RETURN;
467 };
470 inline LIR_OprDesc::OprType as_OprType(BasicType type) {
471 switch (type) {
472 case T_INT: return LIR_OprDesc::int_type;
473 case T_LONG: return LIR_OprDesc::long_type;
474 case T_FLOAT: return LIR_OprDesc::float_type;
475 case T_DOUBLE: return LIR_OprDesc::double_type;
476 case T_OBJECT:
477 case T_ARRAY: return LIR_OprDesc::object_type;
478 case T_ADDRESS: return LIR_OprDesc::address_type;
479 case T_METADATA: return LIR_OprDesc::metadata_type;
480 case T_ILLEGAL: // fall through
481 default: ShouldNotReachHere(); return LIR_OprDesc::unknown_type;
482 }
483 }
485 inline BasicType as_BasicType(LIR_OprDesc::OprType t) {
486 switch (t) {
487 case LIR_OprDesc::int_type: return T_INT;
488 case LIR_OprDesc::long_type: return T_LONG;
489 case LIR_OprDesc::float_type: return T_FLOAT;
490 case LIR_OprDesc::double_type: return T_DOUBLE;
491 case LIR_OprDesc::object_type: return T_OBJECT;
492 case LIR_OprDesc::address_type: return T_ADDRESS;
493 case LIR_OprDesc::metadata_type:return T_METADATA;
494 case LIR_OprDesc::unknown_type: // fall through
495 default: ShouldNotReachHere(); return T_ILLEGAL;
496 }
497 }
500 // LIR_Address
501 class LIR_Address: public LIR_OprPtr {
502 friend class LIR_OpVisitState;
504 public:
505 // NOTE: currently these must be the log2 of the scale factor (and
506 // must also be equivalent to the ScaleFactor enum in
507 // assembler_i486.hpp)
508 enum Scale {
509 times_1 = 0,
510 times_2 = 1,
511 times_4 = 2,
512 times_8 = 3
513 };
515 private:
516 LIR_Opr _base;
517 LIR_Opr _index;
518 Scale _scale;
519 intx _disp;
520 BasicType _type;
522 public:
523 LIR_Address(LIR_Opr base, LIR_Opr index, BasicType type):
524 _base(base)
525 , _index(index)
526 , _scale(times_1)
527 , _type(type)
528 , _disp(0) { verify(); }
530 LIR_Address(LIR_Opr base, intx disp, BasicType type):
531 _base(base)
532 , _index(LIR_OprDesc::illegalOpr())
533 , _scale(times_1)
534 , _type(type)
535 , _disp(disp) { verify(); }
537 LIR_Address(LIR_Opr base, BasicType type):
538 _base(base)
539 , _index(LIR_OprDesc::illegalOpr())
540 , _scale(times_1)
541 , _type(type)
542 , _disp(0) { verify(); }
544 #if defined(X86) || defined(ARM)
545 LIR_Address(LIR_Opr base, LIR_Opr index, Scale scale, intx disp, BasicType type):
546 _base(base)
547 , _index(index)
548 , _scale(scale)
549 , _type(type)
550 , _disp(disp) { verify(); }
551 #endif // X86 || ARM
553 LIR_Opr base() const { return _base; }
554 LIR_Opr index() const { return _index; }
555 Scale scale() const { return _scale; }
556 intx disp() const { return _disp; }
558 bool equals(LIR_Address* other) const { return base() == other->base() && index() == other->index() && disp() == other->disp() && scale() == other->scale(); }
560 virtual LIR_Address* as_address() { return this; }
561 virtual BasicType type() const { return _type; }
562 virtual void print_value_on(outputStream* out) const PRODUCT_RETURN;
564 void verify() const PRODUCT_RETURN;
566 static Scale scale(BasicType type);
567 };
570 // operand factory
571 class LIR_OprFact: public AllStatic {
572 public:
574 static LIR_Opr illegalOpr;
576 static LIR_Opr single_cpu(int reg) {
577 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
578 LIR_OprDesc::int_type |
579 LIR_OprDesc::cpu_register |
580 LIR_OprDesc::single_size);
581 }
582 static LIR_Opr single_cpu_oop(int reg) {
583 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
584 LIR_OprDesc::object_type |
585 LIR_OprDesc::cpu_register |
586 LIR_OprDesc::single_size);
587 }
588 static LIR_Opr single_cpu_address(int reg) {
589 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
590 LIR_OprDesc::address_type |
591 LIR_OprDesc::cpu_register |
592 LIR_OprDesc::single_size);
593 }
594 static LIR_Opr single_cpu_metadata(int reg) {
595 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
596 LIR_OprDesc::metadata_type |
597 LIR_OprDesc::cpu_register |
598 LIR_OprDesc::single_size);
599 }
600 static LIR_Opr double_cpu(int reg1, int reg2) {
601 LP64_ONLY(assert(reg1 == reg2, "must be identical"));
602 return (LIR_Opr)(intptr_t)((reg1 << LIR_OprDesc::reg1_shift) |
603 (reg2 << LIR_OprDesc::reg2_shift) |
604 LIR_OprDesc::long_type |
605 LIR_OprDesc::cpu_register |
606 LIR_OprDesc::double_size);
607 }
609 static LIR_Opr single_fpu(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
610 LIR_OprDesc::float_type |
611 LIR_OprDesc::fpu_register |
612 LIR_OprDesc::single_size); }
613 #if defined(ARM)
614 static LIR_Opr double_fpu(int reg1, int reg2) { return (LIR_Opr)((reg1 << LIR_OprDesc::reg1_shift) | (reg2 << LIR_OprDesc::reg2_shift) | LIR_OprDesc::double_type | LIR_OprDesc::fpu_register | LIR_OprDesc::double_size); }
615 static LIR_Opr single_softfp(int reg) { return (LIR_Opr)((reg << LIR_OprDesc::reg1_shift) | LIR_OprDesc::float_type | LIR_OprDesc::cpu_register | LIR_OprDesc::single_size); }
616 static LIR_Opr double_softfp(int reg1, int reg2) { return (LIR_Opr)((reg1 << LIR_OprDesc::reg1_shift) | (reg2 << LIR_OprDesc::reg2_shift) | LIR_OprDesc::double_type | LIR_OprDesc::cpu_register | LIR_OprDesc::double_size); }
617 #endif
618 #ifdef SPARC
619 static LIR_Opr double_fpu(int reg1, int reg2) { return (LIR_Opr)(intptr_t)((reg1 << LIR_OprDesc::reg1_shift) |
620 (reg2 << LIR_OprDesc::reg2_shift) |
621 LIR_OprDesc::double_type |
622 LIR_OprDesc::fpu_register |
623 LIR_OprDesc::double_size); }
624 #endif
625 #ifdef X86
626 static LIR_Opr double_fpu(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
627 (reg << LIR_OprDesc::reg2_shift) |
628 LIR_OprDesc::double_type |
629 LIR_OprDesc::fpu_register |
630 LIR_OprDesc::double_size); }
632 static LIR_Opr single_xmm(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
633 LIR_OprDesc::float_type |
634 LIR_OprDesc::fpu_register |
635 LIR_OprDesc::single_size |
636 LIR_OprDesc::is_xmm_mask); }
637 static LIR_Opr double_xmm(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
638 (reg << LIR_OprDesc::reg2_shift) |
639 LIR_OprDesc::double_type |
640 LIR_OprDesc::fpu_register |
641 LIR_OprDesc::double_size |
642 LIR_OprDesc::is_xmm_mask); }
643 #endif // X86
644 #ifdef PPC
645 static LIR_Opr double_fpu(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
646 (reg << LIR_OprDesc::reg2_shift) |
647 LIR_OprDesc::double_type |
648 LIR_OprDesc::fpu_register |
649 LIR_OprDesc::double_size); }
650 static LIR_Opr single_softfp(int reg) { return (LIR_Opr)((reg << LIR_OprDesc::reg1_shift) |
651 LIR_OprDesc::float_type |
652 LIR_OprDesc::cpu_register |
653 LIR_OprDesc::single_size); }
654 static LIR_Opr double_softfp(int reg1, int reg2) { return (LIR_Opr)((reg2 << LIR_OprDesc::reg1_shift) |
655 (reg1 << LIR_OprDesc::reg2_shift) |
656 LIR_OprDesc::double_type |
657 LIR_OprDesc::cpu_register |
658 LIR_OprDesc::double_size); }
659 #endif // PPC
661 static LIR_Opr virtual_register(int index, BasicType type) {
662 LIR_Opr res;
663 switch (type) {
664 case T_OBJECT: // fall through
665 case T_ARRAY:
666 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
667 LIR_OprDesc::object_type |
668 LIR_OprDesc::cpu_register |
669 LIR_OprDesc::single_size |
670 LIR_OprDesc::virtual_mask);
671 break;
673 case T_METADATA:
674 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
675 LIR_OprDesc::metadata_type|
676 LIR_OprDesc::cpu_register |
677 LIR_OprDesc::single_size |
678 LIR_OprDesc::virtual_mask);
679 break;
681 case T_INT:
682 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
683 LIR_OprDesc::int_type |
684 LIR_OprDesc::cpu_register |
685 LIR_OprDesc::single_size |
686 LIR_OprDesc::virtual_mask);
687 break;
689 case T_ADDRESS:
690 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
691 LIR_OprDesc::address_type |
692 LIR_OprDesc::cpu_register |
693 LIR_OprDesc::single_size |
694 LIR_OprDesc::virtual_mask);
695 break;
697 case T_LONG:
698 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
699 LIR_OprDesc::long_type |
700 LIR_OprDesc::cpu_register |
701 LIR_OprDesc::double_size |
702 LIR_OprDesc::virtual_mask);
703 break;
705 #ifdef __SOFTFP__
706 case T_FLOAT:
707 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
708 LIR_OprDesc::float_type |
709 LIR_OprDesc::cpu_register |
710 LIR_OprDesc::single_size |
711 LIR_OprDesc::virtual_mask);
712 break;
713 case T_DOUBLE:
714 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
715 LIR_OprDesc::double_type |
716 LIR_OprDesc::cpu_register |
717 LIR_OprDesc::double_size |
718 LIR_OprDesc::virtual_mask);
719 break;
720 #else // __SOFTFP__
721 case T_FLOAT:
722 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
723 LIR_OprDesc::float_type |
724 LIR_OprDesc::fpu_register |
725 LIR_OprDesc::single_size |
726 LIR_OprDesc::virtual_mask);
727 break;
729 case
730 T_DOUBLE: res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
731 LIR_OprDesc::double_type |
732 LIR_OprDesc::fpu_register |
733 LIR_OprDesc::double_size |
734 LIR_OprDesc::virtual_mask);
735 break;
736 #endif // __SOFTFP__
737 default: ShouldNotReachHere(); res = illegalOpr;
738 }
740 #ifdef ASSERT
741 res->validate_type();
742 assert(res->vreg_number() == index, "conversion check");
743 assert(index >= LIR_OprDesc::vreg_base, "must start at vreg_base");
744 assert(index <= (max_jint >> LIR_OprDesc::data_shift), "index is too big");
746 // old-style calculation; check if old and new method are equal
747 LIR_OprDesc::OprType t = as_OprType(type);
748 #ifdef __SOFTFP__
749 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
750 t |
751 LIR_OprDesc::cpu_register |
752 LIR_OprDesc::size_for(type) | LIR_OprDesc::virtual_mask);
753 #else // __SOFTFP__
754 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | t |
755 ((type == T_FLOAT || type == T_DOUBLE) ? LIR_OprDesc::fpu_register : LIR_OprDesc::cpu_register) |
756 LIR_OprDesc::size_for(type) | LIR_OprDesc::virtual_mask);
757 assert(res == old_res, "old and new method not equal");
758 #endif // __SOFTFP__
759 #endif // ASSERT
761 return res;
762 }
764 // 'index' is computed by FrameMap::local_stack_pos(index); do not use other parameters as
765 // the index is platform independent; a double stack useing indeces 2 and 3 has always
766 // index 2.
767 static LIR_Opr stack(int index, BasicType type) {
768 LIR_Opr res;
769 switch (type) {
770 case T_OBJECT: // fall through
771 case T_ARRAY:
772 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
773 LIR_OprDesc::object_type |
774 LIR_OprDesc::stack_value |
775 LIR_OprDesc::single_size);
776 break;
778 case T_METADATA:
779 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
780 LIR_OprDesc::metadata_type |
781 LIR_OprDesc::stack_value |
782 LIR_OprDesc::single_size);
783 break;
784 case T_INT:
785 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
786 LIR_OprDesc::int_type |
787 LIR_OprDesc::stack_value |
788 LIR_OprDesc::single_size);
789 break;
791 case T_ADDRESS:
792 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
793 LIR_OprDesc::address_type |
794 LIR_OprDesc::stack_value |
795 LIR_OprDesc::single_size);
796 break;
798 case T_LONG:
799 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
800 LIR_OprDesc::long_type |
801 LIR_OprDesc::stack_value |
802 LIR_OprDesc::double_size);
803 break;
805 case T_FLOAT:
806 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
807 LIR_OprDesc::float_type |
808 LIR_OprDesc::stack_value |
809 LIR_OprDesc::single_size);
810 break;
811 case T_DOUBLE:
812 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
813 LIR_OprDesc::double_type |
814 LIR_OprDesc::stack_value |
815 LIR_OprDesc::double_size);
816 break;
818 default: ShouldNotReachHere(); res = illegalOpr;
819 }
821 #ifdef ASSERT
822 assert(index >= 0, "index must be positive");
823 assert(index <= (max_jint >> LIR_OprDesc::data_shift), "index is too big");
825 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
826 LIR_OprDesc::stack_value |
827 as_OprType(type) |
828 LIR_OprDesc::size_for(type));
829 assert(res == old_res, "old and new method not equal");
830 #endif
832 return res;
833 }
835 static LIR_Opr intConst(jint i) { return (LIR_Opr)(new LIR_Const(i)); }
836 static LIR_Opr longConst(jlong l) { return (LIR_Opr)(new LIR_Const(l)); }
837 static LIR_Opr floatConst(jfloat f) { return (LIR_Opr)(new LIR_Const(f)); }
838 static LIR_Opr doubleConst(jdouble d) { return (LIR_Opr)(new LIR_Const(d)); }
839 static LIR_Opr oopConst(jobject o) { return (LIR_Opr)(new LIR_Const(o)); }
840 static LIR_Opr address(LIR_Address* a) { return (LIR_Opr)a; }
841 static LIR_Opr intptrConst(void* p) { return (LIR_Opr)(new LIR_Const(p)); }
842 static LIR_Opr intptrConst(intptr_t v) { return (LIR_Opr)(new LIR_Const((void*)v)); }
843 static LIR_Opr illegal() { return (LIR_Opr)-1; }
844 static LIR_Opr addressConst(jint i) { return (LIR_Opr)(new LIR_Const(i, true)); }
845 static LIR_Opr metadataConst(Metadata* m) { return (LIR_Opr)(new LIR_Const(m)); }
847 static LIR_Opr value_type(ValueType* type);
848 static LIR_Opr dummy_value_type(ValueType* type);
849 };
852 //-------------------------------------------------------------------------------
853 // LIR Instructions
854 //-------------------------------------------------------------------------------
855 //
856 // Note:
857 // - every instruction has a result operand
858 // - every instruction has an CodeEmitInfo operand (can be revisited later)
859 // - every instruction has a LIR_OpCode operand
860 // - LIR_OpN, means an instruction that has N input operands
861 //
862 // class hierarchy:
863 //
864 class LIR_Op;
865 class LIR_Op0;
866 class LIR_OpLabel;
867 class LIR_Op1;
868 class LIR_OpBranch;
869 class LIR_OpConvert;
870 class LIR_OpAllocObj;
871 class LIR_OpRoundFP;
872 class LIR_Op2;
873 class LIR_OpDelay;
874 class LIR_Op3;
875 class LIR_OpAllocArray;
876 class LIR_OpCall;
877 class LIR_OpJavaCall;
878 class LIR_OpRTCall;
879 class LIR_OpArrayCopy;
880 class LIR_OpUpdateCRC32;
881 class LIR_OpLock;
882 class LIR_OpTypeCheck;
883 class LIR_OpCompareAndSwap;
884 class LIR_OpProfileCall;
885 class LIR_OpProfileType;
886 #ifdef ASSERT
887 class LIR_OpAssert;
888 #endif
890 // LIR operation codes
891 enum LIR_Code {
892 lir_none
893 , begin_op0
894 , lir_word_align
895 , lir_label
896 , lir_nop
897 , lir_backwardbranch_target
898 , lir_std_entry
899 , lir_osr_entry
900 , lir_build_frame
901 , lir_fpop_raw
902 , lir_24bit_FPU
903 , lir_reset_FPU
904 , lir_breakpoint
905 , lir_rtcall
906 , lir_membar
907 , lir_membar_acquire
908 , lir_membar_release
909 , lir_membar_loadload
910 , lir_membar_storestore
911 , lir_membar_loadstore
912 , lir_membar_storeload
913 , lir_get_thread
914 , end_op0
915 , begin_op1
916 , lir_fxch
917 , lir_fld
918 , lir_ffree
919 , lir_push
920 , lir_pop
921 , lir_null_check
922 , lir_return
923 , lir_leal
924 , lir_neg
925 , lir_branch
926 , lir_cond_float_branch
927 , lir_move
928 , lir_prefetchr
929 , lir_prefetchw
930 , lir_convert
931 , lir_alloc_object
932 , lir_monaddr
933 , lir_roundfp
934 , lir_safepoint
935 , lir_pack64
936 , lir_unpack64
937 , lir_unwind
938 , end_op1
939 , begin_op2
940 , lir_cmp
941 , lir_cmp_l2i
942 , lir_ucmp_fd2i
943 , lir_cmp_fd2i
944 , lir_cmove
945 , lir_add
946 , lir_sub
947 , lir_mul
948 , lir_mul_strictfp
949 , lir_div
950 , lir_div_strictfp
951 , lir_rem
952 , lir_sqrt
953 , lir_abs
954 , lir_sin
955 , lir_cos
956 , lir_tan
957 , lir_log
958 , lir_log10
959 , lir_exp
960 , lir_pow
961 , lir_logic_and
962 , lir_logic_or
963 , lir_logic_xor
964 , lir_shl
965 , lir_shr
966 , lir_ushr
967 , lir_alloc_array
968 , lir_throw
969 , lir_compare_to
970 , lir_xadd
971 , lir_xchg
972 , end_op2
973 , begin_op3
974 , lir_idiv
975 , lir_irem
976 , end_op3
977 , begin_opJavaCall
978 , lir_static_call
979 , lir_optvirtual_call
980 , lir_icvirtual_call
981 , lir_virtual_call
982 , lir_dynamic_call
983 , end_opJavaCall
984 , begin_opArrayCopy
985 , lir_arraycopy
986 , end_opArrayCopy
987 , begin_opUpdateCRC32
988 , lir_updatecrc32
989 , end_opUpdateCRC32
990 , begin_opLock
991 , lir_lock
992 , lir_unlock
993 , end_opLock
994 , begin_delay_slot
995 , lir_delay_slot
996 , end_delay_slot
997 , begin_opTypeCheck
998 , lir_instanceof
999 , lir_checkcast
1000 , lir_store_check
1001 , end_opTypeCheck
1002 , begin_opCompareAndSwap
1003 , lir_cas_long
1004 , lir_cas_obj
1005 , lir_cas_int
1006 , end_opCompareAndSwap
1007 , begin_opMDOProfile
1008 , lir_profile_call
1009 , lir_profile_type
1010 , end_opMDOProfile
1011 , begin_opAssert
1012 , lir_assert
1013 , end_opAssert
1014 };
1017 enum LIR_Condition {
1018 lir_cond_equal
1019 , lir_cond_notEqual
1020 , lir_cond_less
1021 , lir_cond_lessEqual
1022 , lir_cond_greaterEqual
1023 , lir_cond_greater
1024 , lir_cond_belowEqual
1025 , lir_cond_aboveEqual
1026 , lir_cond_always
1027 , lir_cond_unknown = -1
1028 };
1031 enum LIR_PatchCode {
1032 lir_patch_none,
1033 lir_patch_low,
1034 lir_patch_high,
1035 lir_patch_normal
1036 };
1039 enum LIR_MoveKind {
1040 lir_move_normal,
1041 lir_move_volatile,
1042 lir_move_unaligned,
1043 lir_move_wide,
1044 lir_move_max_flag
1045 };
1048 // --------------------------------------------------
1049 // LIR_Op
1050 // --------------------------------------------------
1051 class LIR_Op: public CompilationResourceObj {
1052 friend class LIR_OpVisitState;
1054 #ifdef ASSERT
1055 private:
1056 const char * _file;
1057 int _line;
1058 #endif
1060 protected:
1061 LIR_Opr _result;
1062 unsigned short _code;
1063 unsigned short _flags;
1064 CodeEmitInfo* _info;
1065 int _id; // value id for register allocation
1066 int _fpu_pop_count;
1067 Instruction* _source; // for debugging
1069 static void print_condition(outputStream* out, LIR_Condition cond) PRODUCT_RETURN;
1071 protected:
1072 static bool is_in_range(LIR_Code test, LIR_Code start, LIR_Code end) { return start < test && test < end; }
1074 public:
1075 LIR_Op()
1076 : _result(LIR_OprFact::illegalOpr)
1077 , _code(lir_none)
1078 , _flags(0)
1079 , _info(NULL)
1080 #ifdef ASSERT
1081 , _file(NULL)
1082 , _line(0)
1083 #endif
1084 , _fpu_pop_count(0)
1085 , _source(NULL)
1086 , _id(-1) {}
1088 LIR_Op(LIR_Code code, LIR_Opr result, CodeEmitInfo* info)
1089 : _result(result)
1090 , _code(code)
1091 , _flags(0)
1092 , _info(info)
1093 #ifdef ASSERT
1094 , _file(NULL)
1095 , _line(0)
1096 #endif
1097 , _fpu_pop_count(0)
1098 , _source(NULL)
1099 , _id(-1) {}
1101 CodeEmitInfo* info() const { return _info; }
1102 LIR_Code code() const { return (LIR_Code)_code; }
1103 LIR_Opr result_opr() const { return _result; }
1104 void set_result_opr(LIR_Opr opr) { _result = opr; }
1106 #ifdef ASSERT
1107 void set_file_and_line(const char * file, int line) {
1108 _file = file;
1109 _line = line;
1110 }
1111 #endif
1113 virtual const char * name() const PRODUCT_RETURN0;
1115 int id() const { return _id; }
1116 void set_id(int id) { _id = id; }
1118 // FPU stack simulation helpers -- only used on Intel
1119 void set_fpu_pop_count(int count) { assert(count >= 0 && count <= 1, "currently only 0 and 1 are valid"); _fpu_pop_count = count; }
1120 int fpu_pop_count() const { return _fpu_pop_count; }
1121 bool pop_fpu_stack() { return _fpu_pop_count > 0; }
1123 Instruction* source() const { return _source; }
1124 void set_source(Instruction* ins) { _source = ins; }
1126 virtual void emit_code(LIR_Assembler* masm) = 0;
1127 virtual void print_instr(outputStream* out) const = 0;
1128 virtual void print_on(outputStream* st) const PRODUCT_RETURN;
1130 virtual bool is_patching() { return false; }
1131 virtual LIR_OpCall* as_OpCall() { return NULL; }
1132 virtual LIR_OpJavaCall* as_OpJavaCall() { return NULL; }
1133 virtual LIR_OpLabel* as_OpLabel() { return NULL; }
1134 virtual LIR_OpDelay* as_OpDelay() { return NULL; }
1135 virtual LIR_OpLock* as_OpLock() { return NULL; }
1136 virtual LIR_OpAllocArray* as_OpAllocArray() { return NULL; }
1137 virtual LIR_OpAllocObj* as_OpAllocObj() { return NULL; }
1138 virtual LIR_OpRoundFP* as_OpRoundFP() { return NULL; }
1139 virtual LIR_OpBranch* as_OpBranch() { return NULL; }
1140 virtual LIR_OpRTCall* as_OpRTCall() { return NULL; }
1141 virtual LIR_OpConvert* as_OpConvert() { return NULL; }
1142 virtual LIR_Op0* as_Op0() { return NULL; }
1143 virtual LIR_Op1* as_Op1() { return NULL; }
1144 virtual LIR_Op2* as_Op2() { return NULL; }
1145 virtual LIR_Op3* as_Op3() { return NULL; }
1146 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return NULL; }
1147 virtual LIR_OpUpdateCRC32* as_OpUpdateCRC32() { return NULL; }
1148 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return NULL; }
1149 virtual LIR_OpCompareAndSwap* as_OpCompareAndSwap() { return NULL; }
1150 virtual LIR_OpProfileCall* as_OpProfileCall() { return NULL; }
1151 virtual LIR_OpProfileType* as_OpProfileType() { return NULL; }
1152 #ifdef ASSERT
1153 virtual LIR_OpAssert* as_OpAssert() { return NULL; }
1154 #endif
1156 virtual void verify() const {}
1157 };
1159 // for calls
1160 class LIR_OpCall: public LIR_Op {
1161 friend class LIR_OpVisitState;
1163 protected:
1164 address _addr;
1165 LIR_OprList* _arguments;
1166 protected:
1167 LIR_OpCall(LIR_Code code, address addr, LIR_Opr result,
1168 LIR_OprList* arguments, CodeEmitInfo* info = NULL)
1169 : LIR_Op(code, result, info)
1170 , _arguments(arguments)
1171 , _addr(addr) {}
1173 public:
1174 address addr() const { return _addr; }
1175 const LIR_OprList* arguments() const { return _arguments; }
1176 virtual LIR_OpCall* as_OpCall() { return this; }
1177 };
1180 // --------------------------------------------------
1181 // LIR_OpJavaCall
1182 // --------------------------------------------------
1183 class LIR_OpJavaCall: public LIR_OpCall {
1184 friend class LIR_OpVisitState;
1186 private:
1187 ciMethod* _method;
1188 LIR_Opr _receiver;
1189 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.
1191 public:
1192 LIR_OpJavaCall(LIR_Code code, ciMethod* method,
1193 LIR_Opr receiver, LIR_Opr result,
1194 address addr, LIR_OprList* arguments,
1195 CodeEmitInfo* info)
1196 : LIR_OpCall(code, addr, result, arguments, info)
1197 , _receiver(receiver)
1198 , _method(method)
1199 , _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr)
1200 { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); }
1202 LIR_OpJavaCall(LIR_Code code, ciMethod* method,
1203 LIR_Opr receiver, LIR_Opr result, intptr_t vtable_offset,
1204 LIR_OprList* arguments, CodeEmitInfo* info)
1205 : LIR_OpCall(code, (address)vtable_offset, result, arguments, info)
1206 , _receiver(receiver)
1207 , _method(method)
1208 , _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr)
1209 { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); }
1211 LIR_Opr receiver() const { return _receiver; }
1212 ciMethod* method() const { return _method; }
1214 // JSR 292 support.
1215 bool is_invokedynamic() const { return code() == lir_dynamic_call; }
1216 bool is_method_handle_invoke() const {
1217 return
1218 method()->is_compiled_lambda_form() // Java-generated adapter
1219 ||
1220 method()->is_method_handle_intrinsic(); // JVM-generated MH intrinsic
1221 }
1223 intptr_t vtable_offset() const {
1224 assert(_code == lir_virtual_call, "only have vtable for real vcall");
1225 return (intptr_t) addr();
1226 }
1228 virtual void emit_code(LIR_Assembler* masm);
1229 virtual LIR_OpJavaCall* as_OpJavaCall() { return this; }
1230 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1231 };
1233 // --------------------------------------------------
1234 // LIR_OpLabel
1235 // --------------------------------------------------
1236 // Location where a branch can continue
1237 class LIR_OpLabel: public LIR_Op {
1238 friend class LIR_OpVisitState;
1240 private:
1241 Label* _label;
1242 public:
1243 LIR_OpLabel(Label* lbl)
1244 : LIR_Op(lir_label, LIR_OprFact::illegalOpr, NULL)
1245 , _label(lbl) {}
1246 Label* label() const { return _label; }
1248 virtual void emit_code(LIR_Assembler* masm);
1249 virtual LIR_OpLabel* as_OpLabel() { return this; }
1250 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1251 };
1253 // LIR_OpArrayCopy
1254 class LIR_OpArrayCopy: public LIR_Op {
1255 friend class LIR_OpVisitState;
1257 private:
1258 ArrayCopyStub* _stub;
1259 LIR_Opr _src;
1260 LIR_Opr _src_pos;
1261 LIR_Opr _dst;
1262 LIR_Opr _dst_pos;
1263 LIR_Opr _length;
1264 LIR_Opr _tmp;
1265 ciArrayKlass* _expected_type;
1266 int _flags;
1268 public:
1269 enum Flags {
1270 src_null_check = 1 << 0,
1271 dst_null_check = 1 << 1,
1272 src_pos_positive_check = 1 << 2,
1273 dst_pos_positive_check = 1 << 3,
1274 length_positive_check = 1 << 4,
1275 src_range_check = 1 << 5,
1276 dst_range_check = 1 << 6,
1277 type_check = 1 << 7,
1278 overlapping = 1 << 8,
1279 unaligned = 1 << 9,
1280 src_objarray = 1 << 10,
1281 dst_objarray = 1 << 11,
1282 all_flags = (1 << 12) - 1
1283 };
1285 LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length, LIR_Opr tmp,
1286 ciArrayKlass* expected_type, int flags, CodeEmitInfo* info);
1288 LIR_Opr src() const { return _src; }
1289 LIR_Opr src_pos() const { return _src_pos; }
1290 LIR_Opr dst() const { return _dst; }
1291 LIR_Opr dst_pos() const { return _dst_pos; }
1292 LIR_Opr length() const { return _length; }
1293 LIR_Opr tmp() const { return _tmp; }
1294 int flags() const { return _flags; }
1295 ciArrayKlass* expected_type() const { return _expected_type; }
1296 ArrayCopyStub* stub() const { return _stub; }
1298 virtual void emit_code(LIR_Assembler* masm);
1299 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return this; }
1300 void print_instr(outputStream* out) const PRODUCT_RETURN;
1301 };
1303 // LIR_OpUpdateCRC32
1304 class LIR_OpUpdateCRC32: public LIR_Op {
1305 friend class LIR_OpVisitState;
1307 private:
1308 LIR_Opr _crc;
1309 LIR_Opr _val;
1311 public:
1313 LIR_OpUpdateCRC32(LIR_Opr crc, LIR_Opr val, LIR_Opr res);
1315 LIR_Opr crc() const { return _crc; }
1316 LIR_Opr val() const { return _val; }
1318 virtual void emit_code(LIR_Assembler* masm);
1319 virtual LIR_OpUpdateCRC32* as_OpUpdateCRC32() { return this; }
1320 void print_instr(outputStream* out) const PRODUCT_RETURN;
1321 };
1323 // --------------------------------------------------
1324 // LIR_Op0
1325 // --------------------------------------------------
1326 class LIR_Op0: public LIR_Op {
1327 friend class LIR_OpVisitState;
1329 public:
1330 LIR_Op0(LIR_Code code)
1331 : LIR_Op(code, LIR_OprFact::illegalOpr, NULL) { assert(is_in_range(code, begin_op0, end_op0), "code check"); }
1332 LIR_Op0(LIR_Code code, LIR_Opr result, CodeEmitInfo* info = NULL)
1333 : LIR_Op(code, result, info) { assert(is_in_range(code, begin_op0, end_op0), "code check"); }
1335 virtual void emit_code(LIR_Assembler* masm);
1336 virtual LIR_Op0* as_Op0() { return this; }
1337 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1338 };
1341 // --------------------------------------------------
1342 // LIR_Op1
1343 // --------------------------------------------------
1345 class LIR_Op1: public LIR_Op {
1346 friend class LIR_OpVisitState;
1348 protected:
1349 LIR_Opr _opr; // input operand
1350 BasicType _type; // Operand types
1351 LIR_PatchCode _patch; // only required with patchin (NEEDS_CLEANUP: do we want a special instruction for patching?)
1353 static void print_patch_code(outputStream* out, LIR_PatchCode code);
1355 void set_kind(LIR_MoveKind kind) {
1356 assert(code() == lir_move, "must be");
1357 _flags = kind;
1358 }
1360 public:
1361 LIR_Op1(LIR_Code code, LIR_Opr opr, LIR_Opr result = LIR_OprFact::illegalOpr, BasicType type = T_ILLEGAL, LIR_PatchCode patch = lir_patch_none, CodeEmitInfo* info = NULL)
1362 : LIR_Op(code, result, info)
1363 , _opr(opr)
1364 , _patch(patch)
1365 , _type(type) { assert(is_in_range(code, begin_op1, end_op1), "code check"); }
1367 LIR_Op1(LIR_Code code, LIR_Opr opr, LIR_Opr result, BasicType type, LIR_PatchCode patch, CodeEmitInfo* info, LIR_MoveKind kind)
1368 : LIR_Op(code, result, info)
1369 , _opr(opr)
1370 , _patch(patch)
1371 , _type(type) {
1372 assert(code == lir_move, "must be");
1373 set_kind(kind);
1374 }
1376 LIR_Op1(LIR_Code code, LIR_Opr opr, CodeEmitInfo* info)
1377 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1378 , _opr(opr)
1379 , _patch(lir_patch_none)
1380 , _type(T_ILLEGAL) { assert(is_in_range(code, begin_op1, end_op1), "code check"); }
1382 LIR_Opr in_opr() const { return _opr; }
1383 LIR_PatchCode patch_code() const { return _patch; }
1384 BasicType type() const { return _type; }
1386 LIR_MoveKind move_kind() const {
1387 assert(code() == lir_move, "must be");
1388 return (LIR_MoveKind)_flags;
1389 }
1391 virtual bool is_patching() { return _patch != lir_patch_none; }
1392 virtual void emit_code(LIR_Assembler* masm);
1393 virtual LIR_Op1* as_Op1() { return this; }
1394 virtual const char * name() const PRODUCT_RETURN0;
1396 void set_in_opr(LIR_Opr opr) { _opr = opr; }
1398 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1399 virtual void verify() const;
1400 };
1403 // for runtime calls
1404 class LIR_OpRTCall: public LIR_OpCall {
1405 friend class LIR_OpVisitState;
1407 private:
1408 LIR_Opr _tmp;
1409 public:
1410 LIR_OpRTCall(address addr, LIR_Opr tmp,
1411 LIR_Opr result, LIR_OprList* arguments, CodeEmitInfo* info = NULL)
1412 : LIR_OpCall(lir_rtcall, addr, result, arguments, info)
1413 , _tmp(tmp) {}
1415 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1416 virtual void emit_code(LIR_Assembler* masm);
1417 virtual LIR_OpRTCall* as_OpRTCall() { return this; }
1419 LIR_Opr tmp() const { return _tmp; }
1421 virtual void verify() const;
1422 };
1425 class LIR_OpBranch: public LIR_Op {
1426 friend class LIR_OpVisitState;
1428 private:
1429 LIR_Condition _cond;
1430 BasicType _type;
1431 Label* _label;
1432 BlockBegin* _block; // if this is a branch to a block, this is the block
1433 BlockBegin* _ublock; // if this is a float-branch, this is the unorderd block
1434 CodeStub* _stub; // if this is a branch to a stub, this is the stub
1436 public:
1437 LIR_OpBranch(LIR_Condition cond, BasicType type, Label* lbl)
1438 : LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*) NULL)
1439 , _cond(cond)
1440 , _type(type)
1441 , _label(lbl)
1442 , _block(NULL)
1443 , _ublock(NULL)
1444 , _stub(NULL) { }
1446 LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block);
1447 LIR_OpBranch(LIR_Condition cond, BasicType type, CodeStub* stub);
1449 // for unordered comparisons
1450 LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* ublock);
1452 LIR_Condition cond() const { return _cond; }
1453 BasicType type() const { return _type; }
1454 Label* label() const { return _label; }
1455 BlockBegin* block() const { return _block; }
1456 BlockBegin* ublock() const { return _ublock; }
1457 CodeStub* stub() const { return _stub; }
1459 void change_block(BlockBegin* b);
1460 void change_ublock(BlockBegin* b);
1461 void negate_cond();
1463 virtual void emit_code(LIR_Assembler* masm);
1464 virtual LIR_OpBranch* as_OpBranch() { return this; }
1465 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1466 };
1469 class ConversionStub;
1471 class LIR_OpConvert: public LIR_Op1 {
1472 friend class LIR_OpVisitState;
1474 private:
1475 Bytecodes::Code _bytecode;
1476 ConversionStub* _stub;
1477 #ifdef PPC
1478 LIR_Opr _tmp1;
1479 LIR_Opr _tmp2;
1480 #endif
1482 public:
1483 LIR_OpConvert(Bytecodes::Code code, LIR_Opr opr, LIR_Opr result, ConversionStub* stub)
1484 : LIR_Op1(lir_convert, opr, result)
1485 , _stub(stub)
1486 #ifdef PPC
1487 , _tmp1(LIR_OprDesc::illegalOpr())
1488 , _tmp2(LIR_OprDesc::illegalOpr())
1489 #endif
1490 , _bytecode(code) {}
1492 #ifdef PPC
1493 LIR_OpConvert(Bytecodes::Code code, LIR_Opr opr, LIR_Opr result, ConversionStub* stub
1494 ,LIR_Opr tmp1, LIR_Opr tmp2)
1495 : LIR_Op1(lir_convert, opr, result)
1496 , _stub(stub)
1497 , _tmp1(tmp1)
1498 , _tmp2(tmp2)
1499 , _bytecode(code) {}
1500 #endif
1502 Bytecodes::Code bytecode() const { return _bytecode; }
1503 ConversionStub* stub() const { return _stub; }
1504 #ifdef PPC
1505 LIR_Opr tmp1() const { return _tmp1; }
1506 LIR_Opr tmp2() const { return _tmp2; }
1507 #endif
1509 virtual void emit_code(LIR_Assembler* masm);
1510 virtual LIR_OpConvert* as_OpConvert() { return this; }
1511 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1513 static void print_bytecode(outputStream* out, Bytecodes::Code code) PRODUCT_RETURN;
1514 };
1517 // LIR_OpAllocObj
1518 class LIR_OpAllocObj : public LIR_Op1 {
1519 friend class LIR_OpVisitState;
1521 private:
1522 LIR_Opr _tmp1;
1523 LIR_Opr _tmp2;
1524 LIR_Opr _tmp3;
1525 LIR_Opr _tmp4;
1526 int _hdr_size;
1527 int _obj_size;
1528 CodeStub* _stub;
1529 bool _init_check;
1531 public:
1532 LIR_OpAllocObj(LIR_Opr klass, LIR_Opr result,
1533 LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1534 int hdr_size, int obj_size, bool init_check, CodeStub* stub)
1535 : LIR_Op1(lir_alloc_object, klass, result)
1536 , _tmp1(t1)
1537 , _tmp2(t2)
1538 , _tmp3(t3)
1539 , _tmp4(t4)
1540 , _hdr_size(hdr_size)
1541 , _obj_size(obj_size)
1542 , _init_check(init_check)
1543 , _stub(stub) { }
1545 LIR_Opr klass() const { return in_opr(); }
1546 LIR_Opr obj() const { return result_opr(); }
1547 LIR_Opr tmp1() const { return _tmp1; }
1548 LIR_Opr tmp2() const { return _tmp2; }
1549 LIR_Opr tmp3() const { return _tmp3; }
1550 LIR_Opr tmp4() const { return _tmp4; }
1551 int header_size() const { return _hdr_size; }
1552 int object_size() const { return _obj_size; }
1553 bool init_check() const { return _init_check; }
1554 CodeStub* stub() const { return _stub; }
1556 virtual void emit_code(LIR_Assembler* masm);
1557 virtual LIR_OpAllocObj * as_OpAllocObj () { return this; }
1558 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1559 };
1562 // LIR_OpRoundFP
1563 class LIR_OpRoundFP : public LIR_Op1 {
1564 friend class LIR_OpVisitState;
1566 private:
1567 LIR_Opr _tmp;
1569 public:
1570 LIR_OpRoundFP(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result)
1571 : LIR_Op1(lir_roundfp, reg, result)
1572 , _tmp(stack_loc_temp) {}
1574 LIR_Opr tmp() const { return _tmp; }
1575 virtual LIR_OpRoundFP* as_OpRoundFP() { return this; }
1576 void print_instr(outputStream* out) const PRODUCT_RETURN;
1577 };
1579 // LIR_OpTypeCheck
1580 class LIR_OpTypeCheck: public LIR_Op {
1581 friend class LIR_OpVisitState;
1583 private:
1584 LIR_Opr _object;
1585 LIR_Opr _array;
1586 ciKlass* _klass;
1587 LIR_Opr _tmp1;
1588 LIR_Opr _tmp2;
1589 LIR_Opr _tmp3;
1590 bool _fast_check;
1591 CodeEmitInfo* _info_for_patch;
1592 CodeEmitInfo* _info_for_exception;
1593 CodeStub* _stub;
1594 ciMethod* _profiled_method;
1595 int _profiled_bci;
1596 bool _should_profile;
1598 public:
1599 LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
1600 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1601 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub);
1602 LIR_OpTypeCheck(LIR_Code code, LIR_Opr object, LIR_Opr array,
1603 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception);
1605 LIR_Opr object() const { return _object; }
1606 LIR_Opr array() const { assert(code() == lir_store_check, "not valid"); return _array; }
1607 LIR_Opr tmp1() const { return _tmp1; }
1608 LIR_Opr tmp2() const { return _tmp2; }
1609 LIR_Opr tmp3() const { return _tmp3; }
1610 ciKlass* klass() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _klass; }
1611 bool fast_check() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _fast_check; }
1612 CodeEmitInfo* info_for_patch() const { return _info_for_patch; }
1613 CodeEmitInfo* info_for_exception() const { return _info_for_exception; }
1614 CodeStub* stub() const { return _stub; }
1616 // MethodData* profiling
1617 void set_profiled_method(ciMethod *method) { _profiled_method = method; }
1618 void set_profiled_bci(int bci) { _profiled_bci = bci; }
1619 void set_should_profile(bool b) { _should_profile = b; }
1620 ciMethod* profiled_method() const { return _profiled_method; }
1621 int profiled_bci() const { return _profiled_bci; }
1622 bool should_profile() const { return _should_profile; }
1624 virtual bool is_patching() { return _info_for_patch != NULL; }
1625 virtual void emit_code(LIR_Assembler* masm);
1626 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return this; }
1627 void print_instr(outputStream* out) const PRODUCT_RETURN;
1628 };
1630 // LIR_Op2
1631 class LIR_Op2: public LIR_Op {
1632 friend class LIR_OpVisitState;
1634 int _fpu_stack_size; // for sin/cos implementation on Intel
1636 protected:
1637 LIR_Opr _opr1;
1638 LIR_Opr _opr2;
1639 BasicType _type;
1640 LIR_Opr _tmp1;
1641 LIR_Opr _tmp2;
1642 LIR_Opr _tmp3;
1643 LIR_Opr _tmp4;
1644 LIR_Opr _tmp5;
1645 LIR_Condition _condition;
1647 void verify() const;
1649 public:
1650 LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, CodeEmitInfo* info = NULL)
1651 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1652 , _opr1(opr1)
1653 , _opr2(opr2)
1654 , _type(T_ILLEGAL)
1655 , _condition(condition)
1656 , _fpu_stack_size(0)
1657 , _tmp1(LIR_OprFact::illegalOpr)
1658 , _tmp2(LIR_OprFact::illegalOpr)
1659 , _tmp3(LIR_OprFact::illegalOpr)
1660 , _tmp4(LIR_OprFact::illegalOpr)
1661 , _tmp5(LIR_OprFact::illegalOpr) {
1662 assert(code == lir_cmp || code == lir_assert, "code check");
1663 }
1665 LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, BasicType type)
1666 : LIR_Op(code, result, NULL)
1667 , _opr1(opr1)
1668 , _opr2(opr2)
1669 , _type(type)
1670 , _condition(condition)
1671 , _fpu_stack_size(0)
1672 , _tmp1(LIR_OprFact::illegalOpr)
1673 , _tmp2(LIR_OprFact::illegalOpr)
1674 , _tmp3(LIR_OprFact::illegalOpr)
1675 , _tmp4(LIR_OprFact::illegalOpr)
1676 , _tmp5(LIR_OprFact::illegalOpr) {
1677 assert(code == lir_cmove, "code check");
1678 assert(type != T_ILLEGAL, "cmove should have type");
1679 }
1681 LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result = LIR_OprFact::illegalOpr,
1682 CodeEmitInfo* info = NULL, BasicType type = T_ILLEGAL)
1683 : LIR_Op(code, result, info)
1684 , _opr1(opr1)
1685 , _opr2(opr2)
1686 , _type(type)
1687 , _condition(lir_cond_unknown)
1688 , _fpu_stack_size(0)
1689 , _tmp1(LIR_OprFact::illegalOpr)
1690 , _tmp2(LIR_OprFact::illegalOpr)
1691 , _tmp3(LIR_OprFact::illegalOpr)
1692 , _tmp4(LIR_OprFact::illegalOpr)
1693 , _tmp5(LIR_OprFact::illegalOpr) {
1694 assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check");
1695 }
1697 LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, LIR_Opr tmp1, LIR_Opr tmp2 = LIR_OprFact::illegalOpr,
1698 LIR_Opr tmp3 = LIR_OprFact::illegalOpr, LIR_Opr tmp4 = LIR_OprFact::illegalOpr, LIR_Opr tmp5 = LIR_OprFact::illegalOpr)
1699 : LIR_Op(code, result, NULL)
1700 , _opr1(opr1)
1701 , _opr2(opr2)
1702 , _type(T_ILLEGAL)
1703 , _condition(lir_cond_unknown)
1704 , _fpu_stack_size(0)
1705 , _tmp1(tmp1)
1706 , _tmp2(tmp2)
1707 , _tmp3(tmp3)
1708 , _tmp4(tmp4)
1709 , _tmp5(tmp5) {
1710 assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check");
1711 }
1713 LIR_Opr in_opr1() const { return _opr1; }
1714 LIR_Opr in_opr2() const { return _opr2; }
1715 BasicType type() const { return _type; }
1716 LIR_Opr tmp1_opr() const { return _tmp1; }
1717 LIR_Opr tmp2_opr() const { return _tmp2; }
1718 LIR_Opr tmp3_opr() const { return _tmp3; }
1719 LIR_Opr tmp4_opr() const { return _tmp4; }
1720 LIR_Opr tmp5_opr() const { return _tmp5; }
1721 LIR_Condition condition() const {
1722 assert(code() == lir_cmp || code() == lir_cmove || code() == lir_assert, "only valid for cmp and cmove and assert"); return _condition;
1723 }
1724 void set_condition(LIR_Condition condition) {
1725 assert(code() == lir_cmp || code() == lir_cmove, "only valid for cmp and cmove"); _condition = condition;
1726 }
1728 void set_fpu_stack_size(int size) { _fpu_stack_size = size; }
1729 int fpu_stack_size() const { return _fpu_stack_size; }
1731 void set_in_opr1(LIR_Opr opr) { _opr1 = opr; }
1732 void set_in_opr2(LIR_Opr opr) { _opr2 = opr; }
1734 virtual void emit_code(LIR_Assembler* masm);
1735 virtual LIR_Op2* as_Op2() { return this; }
1736 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1737 };
1739 class LIR_OpAllocArray : public LIR_Op {
1740 friend class LIR_OpVisitState;
1742 private:
1743 LIR_Opr _klass;
1744 LIR_Opr _len;
1745 LIR_Opr _tmp1;
1746 LIR_Opr _tmp2;
1747 LIR_Opr _tmp3;
1748 LIR_Opr _tmp4;
1749 BasicType _type;
1750 CodeStub* _stub;
1752 public:
1753 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)
1754 : LIR_Op(lir_alloc_array, result, NULL)
1755 , _klass(klass)
1756 , _len(len)
1757 , _tmp1(t1)
1758 , _tmp2(t2)
1759 , _tmp3(t3)
1760 , _tmp4(t4)
1761 , _type(type)
1762 , _stub(stub) {}
1764 LIR_Opr klass() const { return _klass; }
1765 LIR_Opr len() const { return _len; }
1766 LIR_Opr obj() const { return result_opr(); }
1767 LIR_Opr tmp1() const { return _tmp1; }
1768 LIR_Opr tmp2() const { return _tmp2; }
1769 LIR_Opr tmp3() const { return _tmp3; }
1770 LIR_Opr tmp4() const { return _tmp4; }
1771 BasicType type() const { return _type; }
1772 CodeStub* stub() const { return _stub; }
1774 virtual void emit_code(LIR_Assembler* masm);
1775 virtual LIR_OpAllocArray * as_OpAllocArray () { return this; }
1776 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1777 };
1780 class LIR_Op3: public LIR_Op {
1781 friend class LIR_OpVisitState;
1783 private:
1784 LIR_Opr _opr1;
1785 LIR_Opr _opr2;
1786 LIR_Opr _opr3;
1787 public:
1788 LIR_Op3(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr opr3, LIR_Opr result, CodeEmitInfo* info = NULL)
1789 : LIR_Op(code, result, info)
1790 , _opr1(opr1)
1791 , _opr2(opr2)
1792 , _opr3(opr3) { assert(is_in_range(code, begin_op3, end_op3), "code check"); }
1793 LIR_Opr in_opr1() const { return _opr1; }
1794 LIR_Opr in_opr2() const { return _opr2; }
1795 LIR_Opr in_opr3() const { return _opr3; }
1797 virtual void emit_code(LIR_Assembler* masm);
1798 virtual LIR_Op3* as_Op3() { return this; }
1799 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1800 };
1803 //--------------------------------
1804 class LabelObj: public CompilationResourceObj {
1805 private:
1806 Label _label;
1807 public:
1808 LabelObj() {}
1809 Label* label() { return &_label; }
1810 };
1813 class LIR_OpLock: public LIR_Op {
1814 friend class LIR_OpVisitState;
1816 private:
1817 LIR_Opr _hdr;
1818 LIR_Opr _obj;
1819 LIR_Opr _lock;
1820 LIR_Opr _scratch;
1821 CodeStub* _stub;
1822 public:
1823 LIR_OpLock(LIR_Code code, LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info)
1824 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1825 , _hdr(hdr)
1826 , _obj(obj)
1827 , _lock(lock)
1828 , _scratch(scratch)
1829 , _stub(stub) {}
1831 LIR_Opr hdr_opr() const { return _hdr; }
1832 LIR_Opr obj_opr() const { return _obj; }
1833 LIR_Opr lock_opr() const { return _lock; }
1834 LIR_Opr scratch_opr() const { return _scratch; }
1835 CodeStub* stub() const { return _stub; }
1837 virtual void emit_code(LIR_Assembler* masm);
1838 virtual LIR_OpLock* as_OpLock() { return this; }
1839 void print_instr(outputStream* out) const PRODUCT_RETURN;
1840 };
1843 class LIR_OpDelay: public LIR_Op {
1844 friend class LIR_OpVisitState;
1846 private:
1847 LIR_Op* _op;
1849 public:
1850 LIR_OpDelay(LIR_Op* op, CodeEmitInfo* info):
1851 LIR_Op(lir_delay_slot, LIR_OprFact::illegalOpr, info),
1852 _op(op) {
1853 assert(op->code() == lir_nop || LIRFillDelaySlots, "should be filling with nops");
1854 }
1855 virtual void emit_code(LIR_Assembler* masm);
1856 virtual LIR_OpDelay* as_OpDelay() { return this; }
1857 void print_instr(outputStream* out) const PRODUCT_RETURN;
1858 LIR_Op* delay_op() const { return _op; }
1859 CodeEmitInfo* call_info() const { return info(); }
1860 };
1862 #ifdef ASSERT
1863 // LIR_OpAssert
1864 class LIR_OpAssert : public LIR_Op2 {
1865 friend class LIR_OpVisitState;
1867 private:
1868 const char* _msg;
1869 bool _halt;
1871 public:
1872 LIR_OpAssert(LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, const char* msg, bool halt)
1873 : LIR_Op2(lir_assert, condition, opr1, opr2)
1874 , _halt(halt)
1875 , _msg(msg) {
1876 }
1878 const char* msg() const { return _msg; }
1879 bool halt() const { return _halt; }
1881 virtual void emit_code(LIR_Assembler* masm);
1882 virtual LIR_OpAssert* as_OpAssert() { return this; }
1883 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1884 };
1885 #endif
1887 // LIR_OpCompareAndSwap
1888 class LIR_OpCompareAndSwap : public LIR_Op {
1889 friend class LIR_OpVisitState;
1891 private:
1892 LIR_Opr _addr;
1893 LIR_Opr _cmp_value;
1894 LIR_Opr _new_value;
1895 LIR_Opr _tmp1;
1896 LIR_Opr _tmp2;
1898 public:
1899 LIR_OpCompareAndSwap(LIR_Code code, LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1900 LIR_Opr t1, LIR_Opr t2, LIR_Opr result)
1901 : LIR_Op(code, result, NULL) // no result, no info
1902 , _addr(addr)
1903 , _cmp_value(cmp_value)
1904 , _new_value(new_value)
1905 , _tmp1(t1)
1906 , _tmp2(t2) { }
1908 LIR_Opr addr() const { return _addr; }
1909 LIR_Opr cmp_value() const { return _cmp_value; }
1910 LIR_Opr new_value() const { return _new_value; }
1911 LIR_Opr tmp1() const { return _tmp1; }
1912 LIR_Opr tmp2() const { return _tmp2; }
1914 virtual void emit_code(LIR_Assembler* masm);
1915 virtual LIR_OpCompareAndSwap * as_OpCompareAndSwap () { return this; }
1916 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1917 };
1919 // LIR_OpProfileCall
1920 class LIR_OpProfileCall : public LIR_Op {
1921 friend class LIR_OpVisitState;
1923 private:
1924 ciMethod* _profiled_method;
1925 int _profiled_bci;
1926 ciMethod* _profiled_callee;
1927 LIR_Opr _mdo;
1928 LIR_Opr _recv;
1929 LIR_Opr _tmp1;
1930 ciKlass* _known_holder;
1932 public:
1933 // Destroys recv
1934 LIR_OpProfileCall(ciMethod* profiled_method, int profiled_bci, ciMethod* profiled_callee, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* known_holder)
1935 : LIR_Op(lir_profile_call, LIR_OprFact::illegalOpr, NULL) // no result, no info
1936 , _profiled_method(profiled_method)
1937 , _profiled_bci(profiled_bci)
1938 , _profiled_callee(profiled_callee)
1939 , _mdo(mdo)
1940 , _recv(recv)
1941 , _tmp1(t1)
1942 , _known_holder(known_holder) { }
1944 ciMethod* profiled_method() const { return _profiled_method; }
1945 int profiled_bci() const { return _profiled_bci; }
1946 ciMethod* profiled_callee() const { return _profiled_callee; }
1947 LIR_Opr mdo() const { return _mdo; }
1948 LIR_Opr recv() const { return _recv; }
1949 LIR_Opr tmp1() const { return _tmp1; }
1950 ciKlass* known_holder() const { return _known_holder; }
1952 virtual void emit_code(LIR_Assembler* masm);
1953 virtual LIR_OpProfileCall* as_OpProfileCall() { return this; }
1954 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1955 };
1957 // LIR_OpProfileType
1958 class LIR_OpProfileType : public LIR_Op {
1959 friend class LIR_OpVisitState;
1961 private:
1962 LIR_Opr _mdp;
1963 LIR_Opr _obj;
1964 LIR_Opr _tmp;
1965 ciKlass* _exact_klass; // non NULL if we know the klass statically (no need to load it from _obj)
1966 intptr_t _current_klass; // what the profiling currently reports
1967 bool _not_null; // true if we know statically that _obj cannot be null
1968 bool _no_conflict; // true if we're profling parameters, _exact_klass is not NULL and we know
1969 // _exact_klass it the only possible type for this parameter in any context.
1971 public:
1972 // Destroys recv
1973 LIR_OpProfileType(LIR_Opr mdp, LIR_Opr obj, ciKlass* exact_klass, intptr_t current_klass, LIR_Opr tmp, bool not_null, bool no_conflict)
1974 : LIR_Op(lir_profile_type, LIR_OprFact::illegalOpr, NULL) // no result, no info
1975 , _mdp(mdp)
1976 , _obj(obj)
1977 , _exact_klass(exact_klass)
1978 , _current_klass(current_klass)
1979 , _tmp(tmp)
1980 , _not_null(not_null)
1981 , _no_conflict(no_conflict) { }
1983 LIR_Opr mdp() const { return _mdp; }
1984 LIR_Opr obj() const { return _obj; }
1985 LIR_Opr tmp() const { return _tmp; }
1986 ciKlass* exact_klass() const { return _exact_klass; }
1987 intptr_t current_klass() const { return _current_klass; }
1988 bool not_null() const { return _not_null; }
1989 bool no_conflict() const { return _no_conflict; }
1991 virtual void emit_code(LIR_Assembler* masm);
1992 virtual LIR_OpProfileType* as_OpProfileType() { return this; }
1993 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1994 };
1996 class LIR_InsertionBuffer;
1998 //--------------------------------LIR_List---------------------------------------------------
1999 // Maintains a list of LIR instructions (one instance of LIR_List per basic block)
2000 // The LIR instructions are appended by the LIR_List class itself;
2001 //
2002 // Notes:
2003 // - all offsets are(should be) in bytes
2004 // - local positions are specified with an offset, with offset 0 being local 0
2006 class LIR_List: public CompilationResourceObj {
2007 private:
2008 LIR_OpList _operations;
2010 Compilation* _compilation;
2011 #ifndef PRODUCT
2012 BlockBegin* _block;
2013 #endif
2014 #ifdef ASSERT
2015 const char * _file;
2016 int _line;
2017 #endif
2019 void append(LIR_Op* op) {
2020 if (op->source() == NULL)
2021 op->set_source(_compilation->current_instruction());
2022 #ifndef PRODUCT
2023 if (PrintIRWithLIR) {
2024 _compilation->maybe_print_current_instruction();
2025 op->print(); tty->cr();
2026 }
2027 #endif // PRODUCT
2029 _operations.append(op);
2031 #ifdef ASSERT
2032 op->verify();
2033 op->set_file_and_line(_file, _line);
2034 _file = NULL;
2035 _line = 0;
2036 #endif
2037 }
2039 public:
2040 LIR_List(Compilation* compilation, BlockBegin* block = NULL);
2042 #ifdef ASSERT
2043 void set_file_and_line(const char * file, int line);
2044 #endif
2046 //---------- accessors ---------------
2047 LIR_OpList* instructions_list() { return &_operations; }
2048 int length() const { return _operations.length(); }
2049 LIR_Op* at(int i) const { return _operations.at(i); }
2051 NOT_PRODUCT(BlockBegin* block() const { return _block; });
2053 // insert LIR_Ops in buffer to right places in LIR_List
2054 void append(LIR_InsertionBuffer* buffer);
2056 //---------- mutators ---------------
2057 void insert_before(int i, LIR_List* op_list) { _operations.insert_before(i, op_list->instructions_list()); }
2058 void insert_before(int i, LIR_Op* op) { _operations.insert_before(i, op); }
2059 void remove_at(int i) { _operations.remove_at(i); }
2061 //---------- printing -------------
2062 void print_instructions() PRODUCT_RETURN;
2065 //---------- instructions -------------
2066 void call_opt_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2067 address dest, LIR_OprList* arguments,
2068 CodeEmitInfo* info) {
2069 append(new LIR_OpJavaCall(lir_optvirtual_call, method, receiver, result, dest, arguments, info));
2070 }
2071 void call_static(ciMethod* method, LIR_Opr result,
2072 address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
2073 append(new LIR_OpJavaCall(lir_static_call, method, LIR_OprFact::illegalOpr, result, dest, arguments, info));
2074 }
2075 void call_icvirtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2076 address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
2077 append(new LIR_OpJavaCall(lir_icvirtual_call, method, receiver, result, dest, arguments, info));
2078 }
2079 void call_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2080 intptr_t vtable_offset, LIR_OprList* arguments, CodeEmitInfo* info) {
2081 append(new LIR_OpJavaCall(lir_virtual_call, method, receiver, result, vtable_offset, arguments, info));
2082 }
2083 void call_dynamic(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
2084 address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
2085 append(new LIR_OpJavaCall(lir_dynamic_call, method, receiver, result, dest, arguments, info));
2086 }
2088 void get_thread(LIR_Opr result) { append(new LIR_Op0(lir_get_thread, result)); }
2089 void word_align() { append(new LIR_Op0(lir_word_align)); }
2090 void membar() { append(new LIR_Op0(lir_membar)); }
2091 void membar_acquire() { append(new LIR_Op0(lir_membar_acquire)); }
2092 void membar_release() { append(new LIR_Op0(lir_membar_release)); }
2093 void membar_loadload() { append(new LIR_Op0(lir_membar_loadload)); }
2094 void membar_storestore() { append(new LIR_Op0(lir_membar_storestore)); }
2095 void membar_loadstore() { append(new LIR_Op0(lir_membar_loadstore)); }
2096 void membar_storeload() { append(new LIR_Op0(lir_membar_storeload)); }
2098 void nop() { append(new LIR_Op0(lir_nop)); }
2099 void build_frame() { append(new LIR_Op0(lir_build_frame)); }
2101 void std_entry(LIR_Opr receiver) { append(new LIR_Op0(lir_std_entry, receiver)); }
2102 void osr_entry(LIR_Opr osrPointer) { append(new LIR_Op0(lir_osr_entry, osrPointer)); }
2104 void branch_destination(Label* lbl) { append(new LIR_OpLabel(lbl)); }
2106 void negate(LIR_Opr from, LIR_Opr to) { append(new LIR_Op1(lir_neg, from, to)); }
2107 void leal(LIR_Opr from, LIR_Opr result_reg) { append(new LIR_Op1(lir_leal, from, result_reg)); }
2109 // result is a stack location for old backend and vreg for UseLinearScan
2110 // stack_loc_temp is an illegal register for old backend
2111 void roundfp(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result) { append(new LIR_OpRoundFP(reg, stack_loc_temp, result)); }
2112 void unaligned_move(LIR_Address* src, LIR_Opr dst) { append(new LIR_Op1(lir_move, LIR_OprFact::address(src), dst, dst->type(), lir_patch_none, NULL, lir_move_unaligned)); }
2113 void unaligned_move(LIR_Opr src, LIR_Address* dst) { append(new LIR_Op1(lir_move, src, LIR_OprFact::address(dst), src->type(), lir_patch_none, NULL, lir_move_unaligned)); }
2114 void unaligned_move(LIR_Opr src, LIR_Opr dst) { append(new LIR_Op1(lir_move, src, dst, dst->type(), lir_patch_none, NULL, lir_move_unaligned)); }
2115 void move(LIR_Opr src, LIR_Opr dst, CodeEmitInfo* info = NULL) { append(new LIR_Op1(lir_move, src, dst, dst->type(), lir_patch_none, info)); }
2116 void move(LIR_Address* src, LIR_Opr dst, CodeEmitInfo* info = NULL) { append(new LIR_Op1(lir_move, LIR_OprFact::address(src), dst, src->type(), lir_patch_none, info)); }
2117 void move(LIR_Opr src, LIR_Address* dst, CodeEmitInfo* info = NULL) { append(new LIR_Op1(lir_move, src, LIR_OprFact::address(dst), dst->type(), lir_patch_none, info)); }
2118 void move_wide(LIR_Address* src, LIR_Opr dst, CodeEmitInfo* info = NULL) {
2119 if (UseCompressedOops) {
2120 append(new LIR_Op1(lir_move, LIR_OprFact::address(src), dst, src->type(), lir_patch_none, info, lir_move_wide));
2121 } else {
2122 move(src, dst, info);
2123 }
2124 }
2125 void move_wide(LIR_Opr src, LIR_Address* dst, CodeEmitInfo* info = NULL) {
2126 if (UseCompressedOops) {
2127 append(new LIR_Op1(lir_move, src, LIR_OprFact::address(dst), dst->type(), lir_patch_none, info, lir_move_wide));
2128 } else {
2129 move(src, dst, info);
2130 }
2131 }
2132 void volatile_move(LIR_Opr src, LIR_Opr dst, BasicType type, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none) { append(new LIR_Op1(lir_move, src, dst, type, patch_code, info, lir_move_volatile)); }
2134 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)); }
2135 void oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info);
2137 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)); }
2138 void klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info);
2140 void return_op(LIR_Opr result) { append(new LIR_Op1(lir_return, result)); }
2142 void safepoint(LIR_Opr tmp, CodeEmitInfo* info) { append(new LIR_Op1(lir_safepoint, tmp, info)); }
2144 #ifdef PPC
2145 void convert(Bytecodes::Code code, LIR_Opr left, LIR_Opr dst, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_OpConvert(code, left, dst, NULL, tmp1, tmp2)); }
2146 #endif
2147 void convert(Bytecodes::Code code, LIR_Opr left, LIR_Opr dst, ConversionStub* stub = NULL/*, bool is_32bit = false*/) { append(new LIR_OpConvert(code, left, dst, stub)); }
2149 void logical_and (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_and, left, right, dst)); }
2150 void logical_or (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_or, left, right, dst)); }
2151 void logical_xor (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_xor, left, right, dst)); }
2153 void pack64(LIR_Opr src, LIR_Opr dst) { append(new LIR_Op1(lir_pack64, src, dst, T_LONG, lir_patch_none, NULL)); }
2154 void unpack64(LIR_Opr src, LIR_Opr dst) { append(new LIR_Op1(lir_unpack64, src, dst, T_LONG, lir_patch_none, NULL)); }
2156 void null_check(LIR_Opr opr, CodeEmitInfo* info) { append(new LIR_Op1(lir_null_check, opr, info)); }
2157 void throw_exception(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) {
2158 append(new LIR_Op2(lir_throw, exceptionPC, exceptionOop, LIR_OprFact::illegalOpr, info));
2159 }
2160 void unwind_exception(LIR_Opr exceptionOop) {
2161 append(new LIR_Op1(lir_unwind, exceptionOop));
2162 }
2164 void compare_to (LIR_Opr left, LIR_Opr right, LIR_Opr dst) {
2165 append(new LIR_Op2(lir_compare_to, left, right, dst));
2166 }
2168 void push(LIR_Opr opr) { append(new LIR_Op1(lir_push, opr)); }
2169 void pop(LIR_Opr reg) { append(new LIR_Op1(lir_pop, reg)); }
2171 void cmp(LIR_Condition condition, LIR_Opr left, LIR_Opr right, CodeEmitInfo* info = NULL) {
2172 append(new LIR_Op2(lir_cmp, condition, left, right, info));
2173 }
2174 void cmp(LIR_Condition condition, LIR_Opr left, int right, CodeEmitInfo* info = NULL) {
2175 cmp(condition, left, LIR_OprFact::intConst(right), info);
2176 }
2178 void cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info);
2179 void cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info);
2181 void cmove(LIR_Condition condition, LIR_Opr src1, LIR_Opr src2, LIR_Opr dst, BasicType type) {
2182 append(new LIR_Op2(lir_cmove, condition, src1, src2, dst, type));
2183 }
2185 void cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
2186 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr);
2187 void cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
2188 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr);
2189 void cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
2190 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr);
2192 void abs (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_abs , from, tmp, to)); }
2193 void sqrt(LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_sqrt, from, tmp, to)); }
2194 void log (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_log, from, LIR_OprFact::illegalOpr, to, tmp)); }
2195 void log10 (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_log10, from, LIR_OprFact::illegalOpr, to, tmp)); }
2196 void sin (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_Op2(lir_sin , from, tmp1, to, tmp2)); }
2197 void cos (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_Op2(lir_cos , from, tmp1, to, tmp2)); }
2198 void tan (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_Op2(lir_tan , from, tmp1, to, tmp2)); }
2199 void exp (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, LIR_Opr tmp4, LIR_Opr tmp5) { append(new LIR_Op2(lir_exp , from, tmp1, to, tmp2, tmp3, tmp4, tmp5)); }
2200 void pow (LIR_Opr arg1, LIR_Opr arg2, LIR_Opr res, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, LIR_Opr tmp4, LIR_Opr tmp5) { append(new LIR_Op2(lir_pow, arg1, arg2, res, tmp1, tmp2, tmp3, tmp4, tmp5)); }
2202 void add (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_add, left, right, res)); }
2203 void sub (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_sub, left, right, res, info)); }
2204 void mul (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_mul, left, right, res)); }
2205 void mul_strictfp (LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_mul_strictfp, left, right, res, tmp)); }
2206 void div (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_div, left, right, res, info)); }
2207 void div_strictfp (LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_div_strictfp, left, right, res, tmp)); }
2208 void rem (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_rem, left, right, res, info)); }
2210 void volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2211 void volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code);
2213 void load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none);
2215 void prefetch(LIR_Address* addr, bool is_store);
2217 void store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2218 void store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2219 void store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none);
2220 void volatile_store_mem_reg(LIR_Opr src, LIR_Address* address, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
2221 void volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code);
2223 void idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2224 void idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2225 void irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2226 void irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
2228 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);
2229 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);
2231 // jump is an unconditional branch
2232 void jump(BlockBegin* block) {
2233 append(new LIR_OpBranch(lir_cond_always, T_ILLEGAL, block));
2234 }
2235 void jump(CodeStub* stub) {
2236 append(new LIR_OpBranch(lir_cond_always, T_ILLEGAL, stub));
2237 }
2238 void branch(LIR_Condition cond, BasicType type, Label* lbl) { append(new LIR_OpBranch(cond, type, lbl)); }
2239 void branch(LIR_Condition cond, BasicType type, BlockBegin* block) {
2240 assert(type != T_FLOAT && type != T_DOUBLE, "no fp comparisons");
2241 append(new LIR_OpBranch(cond, type, block));
2242 }
2243 void branch(LIR_Condition cond, BasicType type, CodeStub* stub) {
2244 assert(type != T_FLOAT && type != T_DOUBLE, "no fp comparisons");
2245 append(new LIR_OpBranch(cond, type, stub));
2246 }
2247 void branch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* unordered) {
2248 assert(type == T_FLOAT || type == T_DOUBLE, "fp comparisons only");
2249 append(new LIR_OpBranch(cond, type, block, unordered));
2250 }
2252 void shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
2253 void shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
2254 void unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
2256 void shift_left(LIR_Opr value, int count, LIR_Opr dst) { shift_left(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2257 void shift_right(LIR_Opr value, int count, LIR_Opr dst) { shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2258 void unsigned_shift_right(LIR_Opr value, int count, LIR_Opr dst) { unsigned_shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
2260 void lcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_cmp_l2i, left, right, dst)); }
2261 void fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less);
2263 void call_runtime_leaf(address routine, LIR_Opr tmp, LIR_Opr result, LIR_OprList* arguments) {
2264 append(new LIR_OpRTCall(routine, tmp, result, arguments));
2265 }
2267 void call_runtime(address routine, LIR_Opr tmp, LIR_Opr result,
2268 LIR_OprList* arguments, CodeEmitInfo* info) {
2269 append(new LIR_OpRTCall(routine, tmp, result, arguments, info));
2270 }
2272 void load_stack_address_monitor(int monitor_ix, LIR_Opr dst) { append(new LIR_Op1(lir_monaddr, LIR_OprFact::intConst(monitor_ix), dst)); }
2273 void unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub);
2274 void lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info);
2276 void set_24bit_fpu() { append(new LIR_Op0(lir_24bit_FPU )); }
2277 void restore_fpu() { append(new LIR_Op0(lir_reset_FPU )); }
2278 void breakpoint() { append(new LIR_Op0(lir_breakpoint)); }
2280 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)); }
2282 void update_crc32(LIR_Opr crc, LIR_Opr val, LIR_Opr res) { append(new LIR_OpUpdateCRC32(crc, val, res)); }
2284 void fpop_raw() { append(new LIR_Op0(lir_fpop_raw)); }
2286 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);
2287 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);
2289 void checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
2290 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
2291 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
2292 ciMethod* profiled_method, int profiled_bci);
2293 // MethodData* profiling
2294 void profile_call(ciMethod* method, int bci, ciMethod* callee, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* cha_klass) {
2295 append(new LIR_OpProfileCall(method, bci, callee, mdo, recv, t1, cha_klass));
2296 }
2297 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) {
2298 append(new LIR_OpProfileType(LIR_OprFact::address(mdp), obj, exact_klass, current_klass, tmp, not_null, no_conflict));
2299 }
2301 void xadd(LIR_Opr src, LIR_Opr add, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_xadd, src, add, res, tmp)); }
2302 void xchg(LIR_Opr src, LIR_Opr set, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_xchg, src, set, res, tmp)); }
2303 #ifdef ASSERT
2304 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)); }
2305 #endif
2306 };
2308 void print_LIR(BlockList* blocks);
2310 class LIR_InsertionBuffer : public CompilationResourceObj {
2311 private:
2312 LIR_List* _lir; // the lir list where ops of this buffer should be inserted later (NULL when uninitialized)
2314 // list of insertion points. index and count are stored alternately:
2315 // _index_and_count[i * 2]: the index into lir list where "count" ops should be inserted
2316 // _index_and_count[i * 2 + 1]: the number of ops to be inserted at index
2317 intStack _index_and_count;
2319 // the LIR_Ops to be inserted
2320 LIR_OpList _ops;
2322 void append_new(int index, int count) { _index_and_count.append(index); _index_and_count.append(count); }
2323 void set_index_at(int i, int value) { _index_and_count.at_put((i << 1), value); }
2324 void set_count_at(int i, int value) { _index_and_count.at_put((i << 1) + 1, value); }
2326 #ifdef ASSERT
2327 void verify();
2328 #endif
2329 public:
2330 LIR_InsertionBuffer() : _lir(NULL), _index_and_count(8), _ops(8) { }
2332 // must be called before using the insertion buffer
2333 void init(LIR_List* lir) { assert(!initialized(), "already initialized"); _lir = lir; _index_and_count.clear(); _ops.clear(); }
2334 bool initialized() const { return _lir != NULL; }
2335 // called automatically when the buffer is appended to the LIR_List
2336 void finish() { _lir = NULL; }
2338 // accessors
2339 LIR_List* lir_list() const { return _lir; }
2340 int number_of_insertion_points() const { return _index_and_count.length() >> 1; }
2341 int index_at(int i) const { return _index_and_count.at((i << 1)); }
2342 int count_at(int i) const { return _index_and_count.at((i << 1) + 1); }
2344 int number_of_ops() const { return _ops.length(); }
2345 LIR_Op* op_at(int i) const { return _ops.at(i); }
2347 // append an instruction to the buffer
2348 void append(int index, LIR_Op* op);
2350 // instruction
2351 void move(int index, LIR_Opr src, LIR_Opr dst, CodeEmitInfo* info = NULL) { append(index, new LIR_Op1(lir_move, src, dst, dst->type(), lir_patch_none, info)); }
2352 };
2355 //
2356 // LIR_OpVisitState is used for manipulating LIR_Ops in an abstract way.
2357 // Calling a LIR_Op's visit function with a LIR_OpVisitState causes
2358 // information about the input, output and temporaries used by the
2359 // op to be recorded. It also records whether the op has call semantics
2360 // and also records all the CodeEmitInfos used by this op.
2361 //
2364 class LIR_OpVisitState: public StackObj {
2365 public:
2366 typedef enum { inputMode, firstMode = inputMode, tempMode, outputMode, numModes, invalidMode = -1 } OprMode;
2368 enum {
2369 maxNumberOfOperands = 20,
2370 maxNumberOfInfos = 4
2371 };
2373 private:
2374 LIR_Op* _op;
2376 // optimization: the operands and infos are not stored in a variable-length
2377 // list, but in a fixed-size array to save time of size checks and resizing
2378 int _oprs_len[numModes];
2379 LIR_Opr* _oprs_new[numModes][maxNumberOfOperands];
2380 int _info_len;
2381 CodeEmitInfo* _info_new[maxNumberOfInfos];
2383 bool _has_call;
2384 bool _has_slow_case;
2387 // only include register operands
2388 // addresses are decomposed to the base and index registers
2389 // constants and stack operands are ignored
2390 void append(LIR_Opr& opr, OprMode mode) {
2391 assert(opr->is_valid(), "should not call this otherwise");
2392 assert(mode >= 0 && mode < numModes, "bad mode");
2394 if (opr->is_register()) {
2395 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
2396 _oprs_new[mode][_oprs_len[mode]++] = &opr;
2398 } else if (opr->is_pointer()) {
2399 LIR_Address* address = opr->as_address_ptr();
2400 if (address != NULL) {
2401 // special handling for addresses: add base and index register of the address
2402 // both are always input operands or temp if we want to extend
2403 // their liveness!
2404 if (mode == outputMode) {
2405 mode = inputMode;
2406 }
2407 assert (mode == inputMode || mode == tempMode, "input or temp only for addresses");
2408 if (address->_base->is_valid()) {
2409 assert(address->_base->is_register(), "must be");
2410 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
2411 _oprs_new[mode][_oprs_len[mode]++] = &address->_base;
2412 }
2413 if (address->_index->is_valid()) {
2414 assert(address->_index->is_register(), "must be");
2415 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
2416 _oprs_new[mode][_oprs_len[mode]++] = &address->_index;
2417 }
2419 } else {
2420 assert(opr->is_constant(), "constant operands are not processed");
2421 }
2422 } else {
2423 assert(opr->is_stack(), "stack operands are not processed");
2424 }
2425 }
2427 void append(CodeEmitInfo* info) {
2428 assert(info != NULL, "should not call this otherwise");
2429 assert(_info_len < maxNumberOfInfos, "array overflow");
2430 _info_new[_info_len++] = info;
2431 }
2433 public:
2434 LIR_OpVisitState() { reset(); }
2436 LIR_Op* op() const { return _op; }
2437 void set_op(LIR_Op* op) { reset(); _op = op; }
2439 bool has_call() const { return _has_call; }
2440 bool has_slow_case() const { return _has_slow_case; }
2442 void reset() {
2443 _op = NULL;
2444 _has_call = false;
2445 _has_slow_case = false;
2447 _oprs_len[inputMode] = 0;
2448 _oprs_len[tempMode] = 0;
2449 _oprs_len[outputMode] = 0;
2450 _info_len = 0;
2451 }
2454 int opr_count(OprMode mode) const {
2455 assert(mode >= 0 && mode < numModes, "bad mode");
2456 return _oprs_len[mode];
2457 }
2459 LIR_Opr opr_at(OprMode mode, int index) const {
2460 assert(mode >= 0 && mode < numModes, "bad mode");
2461 assert(index >= 0 && index < _oprs_len[mode], "index out of bound");
2462 return *_oprs_new[mode][index];
2463 }
2465 void set_opr_at(OprMode mode, int index, LIR_Opr opr) const {
2466 assert(mode >= 0 && mode < numModes, "bad mode");
2467 assert(index >= 0 && index < _oprs_len[mode], "index out of bound");
2468 *_oprs_new[mode][index] = opr;
2469 }
2471 int info_count() const {
2472 return _info_len;
2473 }
2475 CodeEmitInfo* info_at(int index) const {
2476 assert(index < _info_len, "index out of bounds");
2477 return _info_new[index];
2478 }
2480 XHandlers* all_xhandler();
2482 // collects all register operands of the instruction
2483 void visit(LIR_Op* op);
2485 #ifdef ASSERT
2486 // check that an operation has no operands
2487 bool no_operands(LIR_Op* op);
2488 #endif
2490 // LIR_Op visitor functions use these to fill in the state
2491 void do_input(LIR_Opr& opr) { append(opr, LIR_OpVisitState::inputMode); }
2492 void do_output(LIR_Opr& opr) { append(opr, LIR_OpVisitState::outputMode); }
2493 void do_temp(LIR_Opr& opr) { append(opr, LIR_OpVisitState::tempMode); }
2494 void do_info(CodeEmitInfo* info) { append(info); }
2496 void do_stub(CodeStub* stub);
2497 void do_call() { _has_call = true; }
2498 void do_slow_case() { _has_slow_case = true; }
2499 void do_slow_case(CodeEmitInfo* info) {
2500 _has_slow_case = true;
2501 append(info);
2502 }
2503 };
2506 inline LIR_Opr LIR_OprDesc::illegalOpr() { return LIR_OprFact::illegalOpr; };
2508 #endif // SHARE_VM_C1_C1_LIR_HPP
