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src/share/vm/c1/c1_LIR.hpp@18a389214829
src/share/vm/c1/c1_LIR.hpp
Mon, 01 Feb 2010 19:29:46 +0100
- author
- twisti
- date
- Mon, 01 Feb 2010 19:29:46 +0100
- changeset 1639
- 18a389214829
- parent 1610
- 614b7e3a9f48
- child 1730
- 3cf667df43ef
- permissions
- -rw-r--r--
6921352: JSR 292 needs its own deopt handler
Summary: We need to introduce a new MH deopt handler so we can easily determine if the deopt happened at a MH call site or not.
Reviewed-by: never, jrose
1 /*
2 * Copyright 2000-2010 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
25 class BlockBegin;
26 class BlockList;
27 class LIR_Assembler;
28 class CodeEmitInfo;
29 class CodeStub;
30 class CodeStubList;
31 class ArrayCopyStub;
32 class LIR_Op;
33 class ciType;
34 class ValueType;
35 class LIR_OpVisitState;
36 class FpuStackSim;
38 //---------------------------------------------------------------------
39 // LIR Operands
40 // LIR_OprDesc
41 // LIR_OprPtr
42 // LIR_Const
43 // LIR_Address
44 //---------------------------------------------------------------------
45 class LIR_OprDesc;
46 class LIR_OprPtr;
47 class LIR_Const;
48 class LIR_Address;
49 class LIR_OprVisitor;
52 typedef LIR_OprDesc* LIR_Opr;
53 typedef int RegNr;
55 define_array(LIR_OprArray, LIR_Opr)
56 define_stack(LIR_OprList, LIR_OprArray)
58 define_array(LIR_OprRefArray, LIR_Opr*)
59 define_stack(LIR_OprRefList, LIR_OprRefArray)
61 define_array(CodeEmitInfoArray, CodeEmitInfo*)
62 define_stack(CodeEmitInfoList, CodeEmitInfoArray)
64 define_array(LIR_OpArray, LIR_Op*)
65 define_stack(LIR_OpList, LIR_OpArray)
67 // define LIR_OprPtr early so LIR_OprDesc can refer to it
68 class LIR_OprPtr: public CompilationResourceObj {
69 public:
70 bool is_oop_pointer() const { return (type() == T_OBJECT); }
71 bool is_float_kind() const { BasicType t = type(); return (t == T_FLOAT) || (t == T_DOUBLE); }
73 virtual LIR_Const* as_constant() { return NULL; }
74 virtual LIR_Address* as_address() { return NULL; }
75 virtual BasicType type() const = 0;
76 virtual void print_value_on(outputStream* out) const = 0;
77 };
81 // LIR constants
82 class LIR_Const: public LIR_OprPtr {
83 private:
84 JavaValue _value;
86 void type_check(BasicType t) const { assert(type() == t, "type check"); }
87 void type_check(BasicType t1, BasicType t2) const { assert(type() == t1 || type() == t2, "type check"); }
89 public:
90 LIR_Const(jint i) { _value.set_type(T_INT); _value.set_jint(i); }
91 LIR_Const(jlong l) { _value.set_type(T_LONG); _value.set_jlong(l); }
92 LIR_Const(jfloat f) { _value.set_type(T_FLOAT); _value.set_jfloat(f); }
93 LIR_Const(jdouble d) { _value.set_type(T_DOUBLE); _value.set_jdouble(d); }
94 LIR_Const(jobject o) { _value.set_type(T_OBJECT); _value.set_jobject(o); }
95 LIR_Const(void* p) {
96 #ifdef _LP64
97 assert(sizeof(jlong) >= sizeof(p), "too small");;
98 _value.set_type(T_LONG); _value.set_jlong((jlong)p);
99 #else
100 assert(sizeof(jint) >= sizeof(p), "too small");;
101 _value.set_type(T_INT); _value.set_jint((jint)p);
102 #endif
103 }
105 virtual BasicType type() const { return _value.get_type(); }
106 virtual LIR_Const* as_constant() { return this; }
108 jint as_jint() const { type_check(T_INT ); return _value.get_jint(); }
109 jlong as_jlong() const { type_check(T_LONG ); return _value.get_jlong(); }
110 jfloat as_jfloat() const { type_check(T_FLOAT ); return _value.get_jfloat(); }
111 jdouble as_jdouble() const { type_check(T_DOUBLE); return _value.get_jdouble(); }
112 jobject as_jobject() const { type_check(T_OBJECT); return _value.get_jobject(); }
113 jint as_jint_lo() const { type_check(T_LONG ); return low(_value.get_jlong()); }
114 jint as_jint_hi() const { type_check(T_LONG ); return high(_value.get_jlong()); }
116 #ifdef _LP64
117 address as_pointer() const { type_check(T_LONG ); return (address)_value.get_jlong(); }
118 #else
119 address as_pointer() const { type_check(T_INT ); return (address)_value.get_jint(); }
120 #endif
123 jint as_jint_bits() const { type_check(T_FLOAT, T_INT); return _value.get_jint(); }
124 jint as_jint_lo_bits() const {
125 if (type() == T_DOUBLE) {
126 return low(jlong_cast(_value.get_jdouble()));
127 } else {
128 return as_jint_lo();
129 }
130 }
131 jint as_jint_hi_bits() const {
132 if (type() == T_DOUBLE) {
133 return high(jlong_cast(_value.get_jdouble()));
134 } else {
135 return as_jint_hi();
136 }
137 }
138 jlong as_jlong_bits() const {
139 if (type() == T_DOUBLE) {
140 return jlong_cast(_value.get_jdouble());
141 } else {
142 return as_jlong();
143 }
144 }
146 virtual void print_value_on(outputStream* out) const PRODUCT_RETURN;
149 bool is_zero_float() {
150 jfloat f = as_jfloat();
151 jfloat ok = 0.0f;
152 return jint_cast(f) == jint_cast(ok);
153 }
155 bool is_one_float() {
156 jfloat f = as_jfloat();
157 return !g_isnan(f) && g_isfinite(f) && f == 1.0;
158 }
160 bool is_zero_double() {
161 jdouble d = as_jdouble();
162 jdouble ok = 0.0;
163 return jlong_cast(d) == jlong_cast(ok);
164 }
166 bool is_one_double() {
167 jdouble d = as_jdouble();
168 return !g_isnan(d) && g_isfinite(d) && d == 1.0;
169 }
170 };
173 //---------------------LIR Operand descriptor------------------------------------
174 //
175 // The class LIR_OprDesc represents a LIR instruction operand;
176 // it can be a register (ALU/FPU), stack location or a constant;
177 // Constants and addresses are represented as resource area allocated
178 // structures (see above).
179 // Registers and stack locations are inlined into the this pointer
180 // (see value function).
182 class LIR_OprDesc: public CompilationResourceObj {
183 public:
184 // value structure:
185 // data opr-type opr-kind
186 // +--------------+-------+-------+
187 // [max...........|7 6 5 4|3 2 1 0]
188 // ^
189 // is_pointer bit
190 //
191 // lowest bit cleared, means it is a structure pointer
192 // we need 4 bits to represent types
194 private:
195 friend class LIR_OprFact;
197 // Conversion
198 intptr_t value() const { return (intptr_t) this; }
200 bool check_value_mask(intptr_t mask, intptr_t masked_value) const {
201 return (value() & mask) == masked_value;
202 }
204 enum OprKind {
205 pointer_value = 0
206 , stack_value = 1
207 , cpu_register = 3
208 , fpu_register = 5
209 , illegal_value = 7
210 };
212 enum OprBits {
213 pointer_bits = 1
214 , kind_bits = 3
215 , type_bits = 4
216 , size_bits = 2
217 , destroys_bits = 1
218 , virtual_bits = 1
219 , is_xmm_bits = 1
220 , last_use_bits = 1
221 , is_fpu_stack_offset_bits = 1 // used in assertion checking on x86 for FPU stack slot allocation
222 , non_data_bits = kind_bits + type_bits + size_bits + destroys_bits + last_use_bits +
223 is_fpu_stack_offset_bits + virtual_bits + is_xmm_bits
224 , data_bits = BitsPerInt - non_data_bits
225 , reg_bits = data_bits / 2 // for two registers in one value encoding
226 };
228 enum OprShift {
229 kind_shift = 0
230 , type_shift = kind_shift + kind_bits
231 , size_shift = type_shift + type_bits
232 , destroys_shift = size_shift + size_bits
233 , last_use_shift = destroys_shift + destroys_bits
234 , is_fpu_stack_offset_shift = last_use_shift + last_use_bits
235 , virtual_shift = is_fpu_stack_offset_shift + is_fpu_stack_offset_bits
236 , is_xmm_shift = virtual_shift + virtual_bits
237 , data_shift = is_xmm_shift + is_xmm_bits
238 , reg1_shift = data_shift
239 , reg2_shift = data_shift + reg_bits
241 };
243 enum OprSize {
244 single_size = 0 << size_shift
245 , double_size = 1 << size_shift
246 };
248 enum OprMask {
249 kind_mask = right_n_bits(kind_bits)
250 , type_mask = right_n_bits(type_bits) << type_shift
251 , size_mask = right_n_bits(size_bits) << size_shift
252 , last_use_mask = right_n_bits(last_use_bits) << last_use_shift
253 , is_fpu_stack_offset_mask = right_n_bits(is_fpu_stack_offset_bits) << is_fpu_stack_offset_shift
254 , virtual_mask = right_n_bits(virtual_bits) << virtual_shift
255 , is_xmm_mask = right_n_bits(is_xmm_bits) << is_xmm_shift
256 , pointer_mask = right_n_bits(pointer_bits)
257 , lower_reg_mask = right_n_bits(reg_bits)
258 , no_type_mask = (int)(~(type_mask | last_use_mask | is_fpu_stack_offset_mask))
259 };
261 uintptr_t data() const { return value() >> data_shift; }
262 int lo_reg_half() const { return data() & lower_reg_mask; }
263 int hi_reg_half() const { return (data() >> reg_bits) & lower_reg_mask; }
264 OprKind kind_field() const { return (OprKind)(value() & kind_mask); }
265 OprSize size_field() const { return (OprSize)(value() & size_mask); }
267 static char type_char(BasicType t);
269 public:
270 enum {
271 vreg_base = ConcreteRegisterImpl::number_of_registers,
272 vreg_max = (1 << data_bits) - 1
273 };
275 static inline LIR_Opr illegalOpr();
277 enum OprType {
278 unknown_type = 0 << type_shift // means: not set (catch uninitialized types)
279 , int_type = 1 << type_shift
280 , long_type = 2 << type_shift
281 , object_type = 3 << type_shift
282 , pointer_type = 4 << type_shift
283 , float_type = 5 << type_shift
284 , double_type = 6 << type_shift
285 };
286 friend OprType as_OprType(BasicType t);
287 friend BasicType as_BasicType(OprType t);
289 OprType type_field_valid() const { assert(is_register() || is_stack(), "should not be called otherwise"); return (OprType)(value() & type_mask); }
290 OprType type_field() const { return is_illegal() ? unknown_type : (OprType)(value() & type_mask); }
292 static OprSize size_for(BasicType t) {
293 switch (t) {
294 case T_LONG:
295 case T_DOUBLE:
296 return double_size;
297 break;
299 case T_FLOAT:
300 case T_BOOLEAN:
301 case T_CHAR:
302 case T_BYTE:
303 case T_SHORT:
304 case T_INT:
305 case T_OBJECT:
306 case T_ARRAY:
307 return single_size;
308 break;
310 default:
311 ShouldNotReachHere();
312 return single_size;
313 }
314 }
317 void validate_type() const PRODUCT_RETURN;
319 BasicType type() const {
320 if (is_pointer()) {
321 return pointer()->type();
322 }
323 return as_BasicType(type_field());
324 }
327 ValueType* value_type() const { return as_ValueType(type()); }
329 char type_char() const { return type_char((is_pointer()) ? pointer()->type() : type()); }
331 bool is_equal(LIR_Opr opr) const { return this == opr; }
332 // checks whether types are same
333 bool is_same_type(LIR_Opr opr) const {
334 assert(type_field() != unknown_type &&
335 opr->type_field() != unknown_type, "shouldn't see unknown_type");
336 return type_field() == opr->type_field();
337 }
338 bool is_same_register(LIR_Opr opr) {
339 return (is_register() && opr->is_register() &&
340 kind_field() == opr->kind_field() &&
341 (value() & no_type_mask) == (opr->value() & no_type_mask));
342 }
344 bool is_pointer() const { return check_value_mask(pointer_mask, pointer_value); }
345 bool is_illegal() const { return kind_field() == illegal_value; }
346 bool is_valid() const { return kind_field() != illegal_value; }
348 bool is_register() const { return is_cpu_register() || is_fpu_register(); }
349 bool is_virtual() const { return is_virtual_cpu() || is_virtual_fpu(); }
351 bool is_constant() const { return is_pointer() && pointer()->as_constant() != NULL; }
352 bool is_address() const { return is_pointer() && pointer()->as_address() != NULL; }
354 bool is_float_kind() const { return is_pointer() ? pointer()->is_float_kind() : (kind_field() == fpu_register); }
355 bool is_oop() const;
357 // semantic for fpu- and xmm-registers:
358 // * is_float and is_double return true for xmm_registers
359 // (so is_single_fpu and is_single_xmm are true)
360 // * So you must always check for is_???_xmm prior to is_???_fpu to
361 // distinguish between fpu- and xmm-registers
363 bool is_stack() const { validate_type(); return check_value_mask(kind_mask, stack_value); }
364 bool is_single_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | single_size); }
365 bool is_double_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | double_size); }
367 bool is_cpu_register() const { validate_type(); return check_value_mask(kind_mask, cpu_register); }
368 bool is_virtual_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register | virtual_mask); }
369 bool is_fixed_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register); }
370 bool is_single_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | single_size); }
371 bool is_double_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | double_size); }
373 bool is_fpu_register() const { validate_type(); return check_value_mask(kind_mask, fpu_register); }
374 bool is_virtual_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register | virtual_mask); }
375 bool is_fixed_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register); }
376 bool is_single_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | single_size); }
377 bool is_double_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | double_size); }
379 bool is_xmm_register() const { validate_type(); return check_value_mask(kind_mask | is_xmm_mask, fpu_register | is_xmm_mask); }
380 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); }
381 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); }
383 // fast accessor functions for special bits that do not work for pointers
384 // (in this functions, the check for is_pointer() is omitted)
385 bool is_single_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, single_size); }
386 bool is_double_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, double_size); }
387 bool is_virtual_register() const { assert(is_register(), "type check"); return check_value_mask(virtual_mask, virtual_mask); }
388 bool is_oop_register() const { assert(is_register() || is_stack(), "type check"); return type_field_valid() == object_type; }
389 BasicType type_register() const { assert(is_register() || is_stack(), "type check"); return as_BasicType(type_field_valid()); }
391 bool is_last_use() const { assert(is_register(), "only works for registers"); return (value() & last_use_mask) != 0; }
392 bool is_fpu_stack_offset() const { assert(is_register(), "only works for registers"); return (value() & is_fpu_stack_offset_mask) != 0; }
393 LIR_Opr make_last_use() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | last_use_mask); }
394 LIR_Opr make_fpu_stack_offset() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | is_fpu_stack_offset_mask); }
397 int single_stack_ix() const { assert(is_single_stack() && !is_virtual(), "type check"); return (int)data(); }
398 int double_stack_ix() const { assert(is_double_stack() && !is_virtual(), "type check"); return (int)data(); }
399 RegNr cpu_regnr() const { assert(is_single_cpu() && !is_virtual(), "type check"); return (RegNr)data(); }
400 RegNr cpu_regnrLo() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
401 RegNr cpu_regnrHi() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
402 RegNr fpu_regnr() const { assert(is_single_fpu() && !is_virtual(), "type check"); return (RegNr)data(); }
403 RegNr fpu_regnrLo() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
404 RegNr fpu_regnrHi() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
405 RegNr xmm_regnr() const { assert(is_single_xmm() && !is_virtual(), "type check"); return (RegNr)data(); }
406 RegNr xmm_regnrLo() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
407 RegNr xmm_regnrHi() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
408 int vreg_number() const { assert(is_virtual(), "type check"); return (RegNr)data(); }
410 LIR_OprPtr* pointer() const { assert(is_pointer(), "type check"); return (LIR_OprPtr*)this; }
411 LIR_Const* as_constant_ptr() const { return pointer()->as_constant(); }
412 LIR_Address* as_address_ptr() const { return pointer()->as_address(); }
414 Register as_register() const;
415 Register as_register_lo() const;
416 Register as_register_hi() const;
418 Register as_pointer_register() {
419 #ifdef _LP64
420 if (is_double_cpu()) {
421 assert(as_register_lo() == as_register_hi(), "should be a single register");
422 return as_register_lo();
423 }
424 #endif
425 return as_register();
426 }
428 #ifdef X86
429 XMMRegister as_xmm_float_reg() const;
430 XMMRegister as_xmm_double_reg() const;
431 // for compatibility with RInfo
432 int fpu () const { return lo_reg_half(); }
433 #endif // X86
435 #ifdef SPARC
436 FloatRegister as_float_reg () const;
437 FloatRegister as_double_reg () const;
438 #endif
440 jint as_jint() const { return as_constant_ptr()->as_jint(); }
441 jlong as_jlong() const { return as_constant_ptr()->as_jlong(); }
442 jfloat as_jfloat() const { return as_constant_ptr()->as_jfloat(); }
443 jdouble as_jdouble() const { return as_constant_ptr()->as_jdouble(); }
444 jobject as_jobject() const { return as_constant_ptr()->as_jobject(); }
446 void print() const PRODUCT_RETURN;
447 void print(outputStream* out) const PRODUCT_RETURN;
448 };
451 inline LIR_OprDesc::OprType as_OprType(BasicType type) {
452 switch (type) {
453 case T_INT: return LIR_OprDesc::int_type;
454 case T_LONG: return LIR_OprDesc::long_type;
455 case T_FLOAT: return LIR_OprDesc::float_type;
456 case T_DOUBLE: return LIR_OprDesc::double_type;
457 case T_OBJECT:
458 case T_ARRAY: return LIR_OprDesc::object_type;
459 case T_ILLEGAL: // fall through
460 default: ShouldNotReachHere(); return LIR_OprDesc::unknown_type;
461 }
462 }
464 inline BasicType as_BasicType(LIR_OprDesc::OprType t) {
465 switch (t) {
466 case LIR_OprDesc::int_type: return T_INT;
467 case LIR_OprDesc::long_type: return T_LONG;
468 case LIR_OprDesc::float_type: return T_FLOAT;
469 case LIR_OprDesc::double_type: return T_DOUBLE;
470 case LIR_OprDesc::object_type: return T_OBJECT;
471 case LIR_OprDesc::unknown_type: // fall through
472 default: ShouldNotReachHere(); return T_ILLEGAL;
473 }
474 }
477 // LIR_Address
478 class LIR_Address: public LIR_OprPtr {
479 friend class LIR_OpVisitState;
481 public:
482 // NOTE: currently these must be the log2 of the scale factor (and
483 // must also be equivalent to the ScaleFactor enum in
484 // assembler_i486.hpp)
485 enum Scale {
486 times_1 = 0,
487 times_2 = 1,
488 times_4 = 2,
489 times_8 = 3
490 };
492 private:
493 LIR_Opr _base;
494 LIR_Opr _index;
495 Scale _scale;
496 intx _disp;
497 BasicType _type;
499 public:
500 LIR_Address(LIR_Opr base, LIR_Opr index, BasicType type):
501 _base(base)
502 , _index(index)
503 , _scale(times_1)
504 , _type(type)
505 , _disp(0) { verify(); }
507 LIR_Address(LIR_Opr base, int disp, BasicType type):
508 _base(base)
509 , _index(LIR_OprDesc::illegalOpr())
510 , _scale(times_1)
511 , _type(type)
512 , _disp(disp) { verify(); }
514 #ifdef X86
515 LIR_Address(LIR_Opr base, LIR_Opr index, Scale scale, int disp, BasicType type):
516 _base(base)
517 , _index(index)
518 , _scale(scale)
519 , _type(type)
520 , _disp(disp) { verify(); }
521 #endif // X86
523 LIR_Opr base() const { return _base; }
524 LIR_Opr index() const { return _index; }
525 Scale scale() const { return _scale; }
526 intx disp() const { return _disp; }
528 bool equals(LIR_Address* other) const { return base() == other->base() && index() == other->index() && disp() == other->disp() && scale() == other->scale(); }
530 virtual LIR_Address* as_address() { return this; }
531 virtual BasicType type() const { return _type; }
532 virtual void print_value_on(outputStream* out) const PRODUCT_RETURN;
534 void verify() const PRODUCT_RETURN;
536 static Scale scale(BasicType type);
537 };
540 // operand factory
541 class LIR_OprFact: public AllStatic {
542 public:
544 static LIR_Opr illegalOpr;
546 static LIR_Opr single_cpu(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | LIR_OprDesc::int_type | LIR_OprDesc::cpu_register | LIR_OprDesc::single_size); }
547 static LIR_Opr single_cpu_oop(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | LIR_OprDesc::object_type | LIR_OprDesc::cpu_register | LIR_OprDesc::single_size); }
548 static LIR_Opr double_cpu(int reg1, int reg2) {
549 LP64_ONLY(assert(reg1 == reg2, "must be identical"));
550 return (LIR_Opr)(intptr_t)((reg1 << LIR_OprDesc::reg1_shift) |
551 (reg2 << LIR_OprDesc::reg2_shift) |
552 LIR_OprDesc::long_type |
553 LIR_OprDesc::cpu_register |
554 LIR_OprDesc::double_size);
555 }
557 static LIR_Opr single_fpu(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
558 LIR_OprDesc::float_type |
559 LIR_OprDesc::fpu_register |
560 LIR_OprDesc::single_size); }
562 #ifdef SPARC
563 static LIR_Opr double_fpu(int reg1, int reg2) { return (LIR_Opr)(intptr_t)((reg1 << LIR_OprDesc::reg1_shift) |
564 (reg2 << LIR_OprDesc::reg2_shift) |
565 LIR_OprDesc::double_type |
566 LIR_OprDesc::fpu_register |
567 LIR_OprDesc::double_size); }
568 #endif
569 #ifdef X86
570 static LIR_Opr double_fpu(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
571 (reg << LIR_OprDesc::reg2_shift) |
572 LIR_OprDesc::double_type |
573 LIR_OprDesc::fpu_register |
574 LIR_OprDesc::double_size); }
576 static LIR_Opr single_xmm(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
577 LIR_OprDesc::float_type |
578 LIR_OprDesc::fpu_register |
579 LIR_OprDesc::single_size |
580 LIR_OprDesc::is_xmm_mask); }
581 static LIR_Opr double_xmm(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
582 (reg << LIR_OprDesc::reg2_shift) |
583 LIR_OprDesc::double_type |
584 LIR_OprDesc::fpu_register |
585 LIR_OprDesc::double_size |
586 LIR_OprDesc::is_xmm_mask); }
587 #endif // X86
590 static LIR_Opr virtual_register(int index, BasicType type) {
591 LIR_Opr res;
592 switch (type) {
593 case T_OBJECT: // fall through
594 case T_ARRAY:
595 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
596 LIR_OprDesc::object_type |
597 LIR_OprDesc::cpu_register |
598 LIR_OprDesc::single_size |
599 LIR_OprDesc::virtual_mask);
600 break;
602 case T_INT:
603 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
604 LIR_OprDesc::int_type |
605 LIR_OprDesc::cpu_register |
606 LIR_OprDesc::single_size |
607 LIR_OprDesc::virtual_mask);
608 break;
610 case T_LONG:
611 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
612 LIR_OprDesc::long_type |
613 LIR_OprDesc::cpu_register |
614 LIR_OprDesc::double_size |
615 LIR_OprDesc::virtual_mask);
616 break;
618 case T_FLOAT:
619 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
620 LIR_OprDesc::float_type |
621 LIR_OprDesc::fpu_register |
622 LIR_OprDesc::single_size |
623 LIR_OprDesc::virtual_mask);
624 break;
626 case
627 T_DOUBLE: res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
628 LIR_OprDesc::double_type |
629 LIR_OprDesc::fpu_register |
630 LIR_OprDesc::double_size |
631 LIR_OprDesc::virtual_mask);
632 break;
634 default: ShouldNotReachHere(); res = illegalOpr;
635 }
637 #ifdef ASSERT
638 res->validate_type();
639 assert(res->vreg_number() == index, "conversion check");
640 assert(index >= LIR_OprDesc::vreg_base, "must start at vreg_base");
641 assert(index <= (max_jint >> LIR_OprDesc::data_shift), "index is too big");
643 // old-style calculation; check if old and new method are equal
644 LIR_OprDesc::OprType t = as_OprType(type);
645 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | t |
646 ((type == T_FLOAT || type == T_DOUBLE) ? LIR_OprDesc::fpu_register : LIR_OprDesc::cpu_register) |
647 LIR_OprDesc::size_for(type) | LIR_OprDesc::virtual_mask);
648 assert(res == old_res, "old and new method not equal");
649 #endif
651 return res;
652 }
654 // 'index' is computed by FrameMap::local_stack_pos(index); do not use other parameters as
655 // the index is platform independent; a double stack useing indeces 2 and 3 has always
656 // index 2.
657 static LIR_Opr stack(int index, BasicType type) {
658 LIR_Opr res;
659 switch (type) {
660 case T_OBJECT: // fall through
661 case T_ARRAY:
662 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
663 LIR_OprDesc::object_type |
664 LIR_OprDesc::stack_value |
665 LIR_OprDesc::single_size);
666 break;
668 case T_INT:
669 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
670 LIR_OprDesc::int_type |
671 LIR_OprDesc::stack_value |
672 LIR_OprDesc::single_size);
673 break;
675 case T_LONG:
676 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
677 LIR_OprDesc::long_type |
678 LIR_OprDesc::stack_value |
679 LIR_OprDesc::double_size);
680 break;
682 case T_FLOAT:
683 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
684 LIR_OprDesc::float_type |
685 LIR_OprDesc::stack_value |
686 LIR_OprDesc::single_size);
687 break;
688 case T_DOUBLE:
689 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
690 LIR_OprDesc::double_type |
691 LIR_OprDesc::stack_value |
692 LIR_OprDesc::double_size);
693 break;
695 default: ShouldNotReachHere(); res = illegalOpr;
696 }
698 #ifdef ASSERT
699 assert(index >= 0, "index must be positive");
700 assert(index <= (max_jint >> LIR_OprDesc::data_shift), "index is too big");
702 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
703 LIR_OprDesc::stack_value |
704 as_OprType(type) |
705 LIR_OprDesc::size_for(type));
706 assert(res == old_res, "old and new method not equal");
707 #endif
709 return res;
710 }
712 static LIR_Opr intConst(jint i) { return (LIR_Opr)(new LIR_Const(i)); }
713 static LIR_Opr longConst(jlong l) { return (LIR_Opr)(new LIR_Const(l)); }
714 static LIR_Opr floatConst(jfloat f) { return (LIR_Opr)(new LIR_Const(f)); }
715 static LIR_Opr doubleConst(jdouble d) { return (LIR_Opr)(new LIR_Const(d)); }
716 static LIR_Opr oopConst(jobject o) { return (LIR_Opr)(new LIR_Const(o)); }
717 static LIR_Opr address(LIR_Address* a) { return (LIR_Opr)a; }
718 static LIR_Opr intptrConst(void* p) { return (LIR_Opr)(new LIR_Const(p)); }
719 static LIR_Opr intptrConst(intptr_t v) { return (LIR_Opr)(new LIR_Const((void*)v)); }
720 static LIR_Opr illegal() { return (LIR_Opr)-1; }
722 static LIR_Opr value_type(ValueType* type);
723 static LIR_Opr dummy_value_type(ValueType* type);
724 };
727 //-------------------------------------------------------------------------------
728 // LIR Instructions
729 //-------------------------------------------------------------------------------
730 //
731 // Note:
732 // - every instruction has a result operand
733 // - every instruction has an CodeEmitInfo operand (can be revisited later)
734 // - every instruction has a LIR_OpCode operand
735 // - LIR_OpN, means an instruction that has N input operands
736 //
737 // class hierarchy:
738 //
739 class LIR_Op;
740 class LIR_Op0;
741 class LIR_OpLabel;
742 class LIR_Op1;
743 class LIR_OpBranch;
744 class LIR_OpConvert;
745 class LIR_OpAllocObj;
746 class LIR_OpRoundFP;
747 class LIR_Op2;
748 class LIR_OpDelay;
749 class LIR_Op3;
750 class LIR_OpAllocArray;
751 class LIR_OpCall;
752 class LIR_OpJavaCall;
753 class LIR_OpRTCall;
754 class LIR_OpArrayCopy;
755 class LIR_OpLock;
756 class LIR_OpTypeCheck;
757 class LIR_OpCompareAndSwap;
758 class LIR_OpProfileCall;
761 // LIR operation codes
762 enum LIR_Code {
763 lir_none
764 , begin_op0
765 , lir_word_align
766 , lir_label
767 , lir_nop
768 , lir_backwardbranch_target
769 , lir_std_entry
770 , lir_osr_entry
771 , lir_build_frame
772 , lir_fpop_raw
773 , lir_24bit_FPU
774 , lir_reset_FPU
775 , lir_breakpoint
776 , lir_rtcall
777 , lir_membar
778 , lir_membar_acquire
779 , lir_membar_release
780 , lir_get_thread
781 , end_op0
782 , begin_op1
783 , lir_fxch
784 , lir_fld
785 , lir_ffree
786 , lir_push
787 , lir_pop
788 , lir_null_check
789 , lir_return
790 , lir_leal
791 , lir_neg
792 , lir_branch
793 , lir_cond_float_branch
794 , lir_move
795 , lir_prefetchr
796 , lir_prefetchw
797 , lir_convert
798 , lir_alloc_object
799 , lir_monaddr
800 , lir_roundfp
801 , lir_safepoint
802 , end_op1
803 , begin_op2
804 , lir_cmp
805 , lir_cmp_l2i
806 , lir_ucmp_fd2i
807 , lir_cmp_fd2i
808 , lir_cmove
809 , lir_add
810 , lir_sub
811 , lir_mul
812 , lir_mul_strictfp
813 , lir_div
814 , lir_div_strictfp
815 , lir_rem
816 , lir_sqrt
817 , lir_abs
818 , lir_sin
819 , lir_cos
820 , lir_tan
821 , lir_log
822 , lir_log10
823 , lir_logic_and
824 , lir_logic_or
825 , lir_logic_xor
826 , lir_shl
827 , lir_shr
828 , lir_ushr
829 , lir_alloc_array
830 , lir_throw
831 , lir_unwind
832 , lir_compare_to
833 , end_op2
834 , begin_op3
835 , lir_idiv
836 , lir_irem
837 , end_op3
838 , begin_opJavaCall
839 , lir_static_call
840 , lir_optvirtual_call
841 , lir_icvirtual_call
842 , lir_virtual_call
843 , end_opJavaCall
844 , begin_opArrayCopy
845 , lir_arraycopy
846 , end_opArrayCopy
847 , begin_opLock
848 , lir_lock
849 , lir_unlock
850 , end_opLock
851 , begin_delay_slot
852 , lir_delay_slot
853 , end_delay_slot
854 , begin_opTypeCheck
855 , lir_instanceof
856 , lir_checkcast
857 , lir_store_check
858 , end_opTypeCheck
859 , begin_opCompareAndSwap
860 , lir_cas_long
861 , lir_cas_obj
862 , lir_cas_int
863 , end_opCompareAndSwap
864 , begin_opMDOProfile
865 , lir_profile_call
866 , end_opMDOProfile
867 };
870 enum LIR_Condition {
871 lir_cond_equal
872 , lir_cond_notEqual
873 , lir_cond_less
874 , lir_cond_lessEqual
875 , lir_cond_greaterEqual
876 , lir_cond_greater
877 , lir_cond_belowEqual
878 , lir_cond_aboveEqual
879 , lir_cond_always
880 , lir_cond_unknown = -1
881 };
884 enum LIR_PatchCode {
885 lir_patch_none,
886 lir_patch_low,
887 lir_patch_high,
888 lir_patch_normal
889 };
892 enum LIR_MoveKind {
893 lir_move_normal,
894 lir_move_volatile,
895 lir_move_unaligned,
896 lir_move_max_flag
897 };
900 // --------------------------------------------------
901 // LIR_Op
902 // --------------------------------------------------
903 class LIR_Op: public CompilationResourceObj {
904 friend class LIR_OpVisitState;
906 #ifdef ASSERT
907 private:
908 const char * _file;
909 int _line;
910 #endif
912 protected:
913 LIR_Opr _result;
914 unsigned short _code;
915 unsigned short _flags;
916 CodeEmitInfo* _info;
917 int _id; // value id for register allocation
918 int _fpu_pop_count;
919 Instruction* _source; // for debugging
921 static void print_condition(outputStream* out, LIR_Condition cond) PRODUCT_RETURN;
923 protected:
924 static bool is_in_range(LIR_Code test, LIR_Code start, LIR_Code end) { return start < test && test < end; }
926 public:
927 LIR_Op()
928 : _result(LIR_OprFact::illegalOpr)
929 , _code(lir_none)
930 , _flags(0)
931 , _info(NULL)
932 #ifdef ASSERT
933 , _file(NULL)
934 , _line(0)
935 #endif
936 , _fpu_pop_count(0)
937 , _source(NULL)
938 , _id(-1) {}
940 LIR_Op(LIR_Code code, LIR_Opr result, CodeEmitInfo* info)
941 : _result(result)
942 , _code(code)
943 , _flags(0)
944 , _info(info)
945 #ifdef ASSERT
946 , _file(NULL)
947 , _line(0)
948 #endif
949 , _fpu_pop_count(0)
950 , _source(NULL)
951 , _id(-1) {}
953 CodeEmitInfo* info() const { return _info; }
954 LIR_Code code() const { return (LIR_Code)_code; }
955 LIR_Opr result_opr() const { return _result; }
956 void set_result_opr(LIR_Opr opr) { _result = opr; }
958 #ifdef ASSERT
959 void set_file_and_line(const char * file, int line) {
960 _file = file;
961 _line = line;
962 }
963 #endif
965 virtual const char * name() const PRODUCT_RETURN0;
967 int id() const { return _id; }
968 void set_id(int id) { _id = id; }
970 // FPU stack simulation helpers -- only used on Intel
971 void set_fpu_pop_count(int count) { assert(count >= 0 && count <= 1, "currently only 0 and 1 are valid"); _fpu_pop_count = count; }
972 int fpu_pop_count() const { return _fpu_pop_count; }
973 bool pop_fpu_stack() { return _fpu_pop_count > 0; }
975 Instruction* source() const { return _source; }
976 void set_source(Instruction* ins) { _source = ins; }
978 virtual void emit_code(LIR_Assembler* masm) = 0;
979 virtual void print_instr(outputStream* out) const = 0;
980 virtual void print_on(outputStream* st) const PRODUCT_RETURN;
982 virtual LIR_OpCall* as_OpCall() { return NULL; }
983 virtual LIR_OpJavaCall* as_OpJavaCall() { return NULL; }
984 virtual LIR_OpLabel* as_OpLabel() { return NULL; }
985 virtual LIR_OpDelay* as_OpDelay() { return NULL; }
986 virtual LIR_OpLock* as_OpLock() { return NULL; }
987 virtual LIR_OpAllocArray* as_OpAllocArray() { return NULL; }
988 virtual LIR_OpAllocObj* as_OpAllocObj() { return NULL; }
989 virtual LIR_OpRoundFP* as_OpRoundFP() { return NULL; }
990 virtual LIR_OpBranch* as_OpBranch() { return NULL; }
991 virtual LIR_OpRTCall* as_OpRTCall() { return NULL; }
992 virtual LIR_OpConvert* as_OpConvert() { return NULL; }
993 virtual LIR_Op0* as_Op0() { return NULL; }
994 virtual LIR_Op1* as_Op1() { return NULL; }
995 virtual LIR_Op2* as_Op2() { return NULL; }
996 virtual LIR_Op3* as_Op3() { return NULL; }
997 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return NULL; }
998 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return NULL; }
999 virtual LIR_OpCompareAndSwap* as_OpCompareAndSwap() { return NULL; }
1000 virtual LIR_OpProfileCall* as_OpProfileCall() { return NULL; }
1002 virtual void verify() const {}
1003 };
1005 // for calls
1006 class LIR_OpCall: public LIR_Op {
1007 friend class LIR_OpVisitState;
1009 protected:
1010 address _addr;
1011 LIR_OprList* _arguments;
1012 protected:
1013 LIR_OpCall(LIR_Code code, address addr, LIR_Opr result,
1014 LIR_OprList* arguments, CodeEmitInfo* info = NULL)
1015 : LIR_Op(code, result, info)
1016 , _arguments(arguments)
1017 , _addr(addr) {}
1019 public:
1020 address addr() const { return _addr; }
1021 const LIR_OprList* arguments() const { return _arguments; }
1022 virtual LIR_OpCall* as_OpCall() { return this; }
1023 };
1026 // --------------------------------------------------
1027 // LIR_OpJavaCall
1028 // --------------------------------------------------
1029 class LIR_OpJavaCall: public LIR_OpCall {
1030 friend class LIR_OpVisitState;
1032 private:
1033 ciMethod* _method;
1034 LIR_Opr _receiver;
1036 public:
1037 LIR_OpJavaCall(LIR_Code code, ciMethod* method,
1038 LIR_Opr receiver, LIR_Opr result,
1039 address addr, LIR_OprList* arguments,
1040 CodeEmitInfo* info)
1041 : LIR_OpCall(code, addr, result, arguments, info)
1042 , _receiver(receiver)
1043 , _method(method) { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); }
1045 LIR_OpJavaCall(LIR_Code code, ciMethod* method,
1046 LIR_Opr receiver, LIR_Opr result, intptr_t vtable_offset,
1047 LIR_OprList* arguments, CodeEmitInfo* info)
1048 : LIR_OpCall(code, (address)vtable_offset, result, arguments, info)
1049 , _receiver(receiver)
1050 , _method(method) { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); }
1052 LIR_Opr receiver() const { return _receiver; }
1053 ciMethod* method() const { return _method; }
1055 intptr_t vtable_offset() const {
1056 assert(_code == lir_virtual_call, "only have vtable for real vcall");
1057 return (intptr_t) addr();
1058 }
1060 virtual void emit_code(LIR_Assembler* masm);
1061 virtual LIR_OpJavaCall* as_OpJavaCall() { return this; }
1062 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1063 };
1065 // --------------------------------------------------
1066 // LIR_OpLabel
1067 // --------------------------------------------------
1068 // Location where a branch can continue
1069 class LIR_OpLabel: public LIR_Op {
1070 friend class LIR_OpVisitState;
1072 private:
1073 Label* _label;
1074 public:
1075 LIR_OpLabel(Label* lbl)
1076 : LIR_Op(lir_label, LIR_OprFact::illegalOpr, NULL)
1077 , _label(lbl) {}
1078 Label* label() const { return _label; }
1080 virtual void emit_code(LIR_Assembler* masm);
1081 virtual LIR_OpLabel* as_OpLabel() { return this; }
1082 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1083 };
1085 // LIR_OpArrayCopy
1086 class LIR_OpArrayCopy: public LIR_Op {
1087 friend class LIR_OpVisitState;
1089 private:
1090 ArrayCopyStub* _stub;
1091 LIR_Opr _src;
1092 LIR_Opr _src_pos;
1093 LIR_Opr _dst;
1094 LIR_Opr _dst_pos;
1095 LIR_Opr _length;
1096 LIR_Opr _tmp;
1097 ciArrayKlass* _expected_type;
1098 int _flags;
1100 public:
1101 enum Flags {
1102 src_null_check = 1 << 0,
1103 dst_null_check = 1 << 1,
1104 src_pos_positive_check = 1 << 2,
1105 dst_pos_positive_check = 1 << 3,
1106 length_positive_check = 1 << 4,
1107 src_range_check = 1 << 5,
1108 dst_range_check = 1 << 6,
1109 type_check = 1 << 7,
1110 all_flags = (1 << 8) - 1
1111 };
1113 LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length, LIR_Opr tmp,
1114 ciArrayKlass* expected_type, int flags, CodeEmitInfo* info);
1116 LIR_Opr src() const { return _src; }
1117 LIR_Opr src_pos() const { return _src_pos; }
1118 LIR_Opr dst() const { return _dst; }
1119 LIR_Opr dst_pos() const { return _dst_pos; }
1120 LIR_Opr length() const { return _length; }
1121 LIR_Opr tmp() const { return _tmp; }
1122 int flags() const { return _flags; }
1123 ciArrayKlass* expected_type() const { return _expected_type; }
1124 ArrayCopyStub* stub() const { return _stub; }
1126 virtual void emit_code(LIR_Assembler* masm);
1127 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return this; }
1128 void print_instr(outputStream* out) const PRODUCT_RETURN;
1129 };
1132 // --------------------------------------------------
1133 // LIR_Op0
1134 // --------------------------------------------------
1135 class LIR_Op0: public LIR_Op {
1136 friend class LIR_OpVisitState;
1138 public:
1139 LIR_Op0(LIR_Code code)
1140 : LIR_Op(code, LIR_OprFact::illegalOpr, NULL) { assert(is_in_range(code, begin_op0, end_op0), "code check"); }
1141 LIR_Op0(LIR_Code code, LIR_Opr result, CodeEmitInfo* info = NULL)
1142 : LIR_Op(code, result, info) { assert(is_in_range(code, begin_op0, end_op0), "code check"); }
1144 virtual void emit_code(LIR_Assembler* masm);
1145 virtual LIR_Op0* as_Op0() { return this; }
1146 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1147 };
1150 // --------------------------------------------------
1151 // LIR_Op1
1152 // --------------------------------------------------
1154 class LIR_Op1: public LIR_Op {
1155 friend class LIR_OpVisitState;
1157 protected:
1158 LIR_Opr _opr; // input operand
1159 BasicType _type; // Operand types
1160 LIR_PatchCode _patch; // only required with patchin (NEEDS_CLEANUP: do we want a special instruction for patching?)
1162 static void print_patch_code(outputStream* out, LIR_PatchCode code);
1164 void set_kind(LIR_MoveKind kind) {
1165 assert(code() == lir_move, "must be");
1166 _flags = kind;
1167 }
1169 public:
1170 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)
1171 : LIR_Op(code, result, info)
1172 , _opr(opr)
1173 , _patch(patch)
1174 , _type(type) { assert(is_in_range(code, begin_op1, end_op1), "code check"); }
1176 LIR_Op1(LIR_Code code, LIR_Opr opr, LIR_Opr result, BasicType type, LIR_PatchCode patch, CodeEmitInfo* info, LIR_MoveKind kind)
1177 : LIR_Op(code, result, info)
1178 , _opr(opr)
1179 , _patch(patch)
1180 , _type(type) {
1181 assert(code == lir_move, "must be");
1182 set_kind(kind);
1183 }
1185 LIR_Op1(LIR_Code code, LIR_Opr opr, CodeEmitInfo* info)
1186 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1187 , _opr(opr)
1188 , _patch(lir_patch_none)
1189 , _type(T_ILLEGAL) { assert(is_in_range(code, begin_op1, end_op1), "code check"); }
1191 LIR_Opr in_opr() const { return _opr; }
1192 LIR_PatchCode patch_code() const { return _patch; }
1193 BasicType type() const { return _type; }
1195 LIR_MoveKind move_kind() const {
1196 assert(code() == lir_move, "must be");
1197 return (LIR_MoveKind)_flags;
1198 }
1200 virtual void emit_code(LIR_Assembler* masm);
1201 virtual LIR_Op1* as_Op1() { return this; }
1202 virtual const char * name() const PRODUCT_RETURN0;
1204 void set_in_opr(LIR_Opr opr) { _opr = opr; }
1206 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1207 virtual void verify() const;
1208 };
1211 // for runtime calls
1212 class LIR_OpRTCall: public LIR_OpCall {
1213 friend class LIR_OpVisitState;
1215 private:
1216 LIR_Opr _tmp;
1217 public:
1218 LIR_OpRTCall(address addr, LIR_Opr tmp,
1219 LIR_Opr result, LIR_OprList* arguments, CodeEmitInfo* info = NULL)
1220 : LIR_OpCall(lir_rtcall, addr, result, arguments, info)
1221 , _tmp(tmp) {}
1223 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1224 virtual void emit_code(LIR_Assembler* masm);
1225 virtual LIR_OpRTCall* as_OpRTCall() { return this; }
1227 LIR_Opr tmp() const { return _tmp; }
1229 virtual void verify() const;
1230 };
1233 class LIR_OpBranch: public LIR_Op {
1234 friend class LIR_OpVisitState;
1236 private:
1237 LIR_Condition _cond;
1238 BasicType _type;
1239 Label* _label;
1240 BlockBegin* _block; // if this is a branch to a block, this is the block
1241 BlockBegin* _ublock; // if this is a float-branch, this is the unorderd block
1242 CodeStub* _stub; // if this is a branch to a stub, this is the stub
1244 public:
1245 LIR_OpBranch(LIR_Condition cond, Label* lbl)
1246 : LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*) NULL)
1247 , _cond(cond)
1248 , _label(lbl)
1249 , _block(NULL)
1250 , _ublock(NULL)
1251 , _stub(NULL) { }
1253 LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block);
1254 LIR_OpBranch(LIR_Condition cond, BasicType type, CodeStub* stub);
1256 // for unordered comparisons
1257 LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* ublock);
1259 LIR_Condition cond() const { return _cond; }
1260 BasicType type() const { return _type; }
1261 Label* label() const { return _label; }
1262 BlockBegin* block() const { return _block; }
1263 BlockBegin* ublock() const { return _ublock; }
1264 CodeStub* stub() const { return _stub; }
1266 void change_block(BlockBegin* b);
1267 void change_ublock(BlockBegin* b);
1268 void negate_cond();
1270 virtual void emit_code(LIR_Assembler* masm);
1271 virtual LIR_OpBranch* as_OpBranch() { return this; }
1272 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1273 };
1276 class ConversionStub;
1278 class LIR_OpConvert: public LIR_Op1 {
1279 friend class LIR_OpVisitState;
1281 private:
1282 Bytecodes::Code _bytecode;
1283 ConversionStub* _stub;
1285 public:
1286 LIR_OpConvert(Bytecodes::Code code, LIR_Opr opr, LIR_Opr result, ConversionStub* stub)
1287 : LIR_Op1(lir_convert, opr, result)
1288 , _stub(stub)
1289 , _bytecode(code) {}
1291 Bytecodes::Code bytecode() const { return _bytecode; }
1292 ConversionStub* stub() const { return _stub; }
1294 virtual void emit_code(LIR_Assembler* masm);
1295 virtual LIR_OpConvert* as_OpConvert() { return this; }
1296 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1298 static void print_bytecode(outputStream* out, Bytecodes::Code code) PRODUCT_RETURN;
1299 };
1302 // LIR_OpAllocObj
1303 class LIR_OpAllocObj : public LIR_Op1 {
1304 friend class LIR_OpVisitState;
1306 private:
1307 LIR_Opr _tmp1;
1308 LIR_Opr _tmp2;
1309 LIR_Opr _tmp3;
1310 LIR_Opr _tmp4;
1311 int _hdr_size;
1312 int _obj_size;
1313 CodeStub* _stub;
1314 bool _init_check;
1316 public:
1317 LIR_OpAllocObj(LIR_Opr klass, LIR_Opr result,
1318 LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1319 int hdr_size, int obj_size, bool init_check, CodeStub* stub)
1320 : LIR_Op1(lir_alloc_object, klass, result)
1321 , _tmp1(t1)
1322 , _tmp2(t2)
1323 , _tmp3(t3)
1324 , _tmp4(t4)
1325 , _hdr_size(hdr_size)
1326 , _obj_size(obj_size)
1327 , _init_check(init_check)
1328 , _stub(stub) { }
1330 LIR_Opr klass() const { return in_opr(); }
1331 LIR_Opr obj() const { return result_opr(); }
1332 LIR_Opr tmp1() const { return _tmp1; }
1333 LIR_Opr tmp2() const { return _tmp2; }
1334 LIR_Opr tmp3() const { return _tmp3; }
1335 LIR_Opr tmp4() const { return _tmp4; }
1336 int header_size() const { return _hdr_size; }
1337 int object_size() const { return _obj_size; }
1338 bool init_check() const { return _init_check; }
1339 CodeStub* stub() const { return _stub; }
1341 virtual void emit_code(LIR_Assembler* masm);
1342 virtual LIR_OpAllocObj * as_OpAllocObj () { return this; }
1343 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1344 };
1347 // LIR_OpRoundFP
1348 class LIR_OpRoundFP : public LIR_Op1 {
1349 friend class LIR_OpVisitState;
1351 private:
1352 LIR_Opr _tmp;
1354 public:
1355 LIR_OpRoundFP(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result)
1356 : LIR_Op1(lir_roundfp, reg, result)
1357 , _tmp(stack_loc_temp) {}
1359 LIR_Opr tmp() const { return _tmp; }
1360 virtual LIR_OpRoundFP* as_OpRoundFP() { return this; }
1361 void print_instr(outputStream* out) const PRODUCT_RETURN;
1362 };
1364 // LIR_OpTypeCheck
1365 class LIR_OpTypeCheck: public LIR_Op {
1366 friend class LIR_OpVisitState;
1368 private:
1369 LIR_Opr _object;
1370 LIR_Opr _array;
1371 ciKlass* _klass;
1372 LIR_Opr _tmp1;
1373 LIR_Opr _tmp2;
1374 LIR_Opr _tmp3;
1375 bool _fast_check;
1376 CodeEmitInfo* _info_for_patch;
1377 CodeEmitInfo* _info_for_exception;
1378 CodeStub* _stub;
1379 // Helpers for Tier1UpdateMethodData
1380 ciMethod* _profiled_method;
1381 int _profiled_bci;
1383 public:
1384 LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
1385 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1386 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
1387 ciMethod* profiled_method, int profiled_bci);
1388 LIR_OpTypeCheck(LIR_Code code, LIR_Opr object, LIR_Opr array,
1389 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception,
1390 ciMethod* profiled_method, int profiled_bci);
1392 LIR_Opr object() const { return _object; }
1393 LIR_Opr array() const { assert(code() == lir_store_check, "not valid"); return _array; }
1394 LIR_Opr tmp1() const { return _tmp1; }
1395 LIR_Opr tmp2() const { return _tmp2; }
1396 LIR_Opr tmp3() const { return _tmp3; }
1397 ciKlass* klass() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _klass; }
1398 bool fast_check() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _fast_check; }
1399 CodeEmitInfo* info_for_patch() const { return _info_for_patch; }
1400 CodeEmitInfo* info_for_exception() const { return _info_for_exception; }
1401 CodeStub* stub() const { return _stub; }
1403 // methodDataOop profiling
1404 ciMethod* profiled_method() { return _profiled_method; }
1405 int profiled_bci() { return _profiled_bci; }
1407 virtual void emit_code(LIR_Assembler* masm);
1408 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return this; }
1409 void print_instr(outputStream* out) const PRODUCT_RETURN;
1410 };
1412 // LIR_Op2
1413 class LIR_Op2: public LIR_Op {
1414 friend class LIR_OpVisitState;
1416 int _fpu_stack_size; // for sin/cos implementation on Intel
1418 protected:
1419 LIR_Opr _opr1;
1420 LIR_Opr _opr2;
1421 BasicType _type;
1422 LIR_Opr _tmp;
1423 LIR_Condition _condition;
1425 void verify() const;
1427 public:
1428 LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, CodeEmitInfo* info = NULL)
1429 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1430 , _opr1(opr1)
1431 , _opr2(opr2)
1432 , _type(T_ILLEGAL)
1433 , _condition(condition)
1434 , _fpu_stack_size(0)
1435 , _tmp(LIR_OprFact::illegalOpr) {
1436 assert(code == lir_cmp, "code check");
1437 }
1439 LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result)
1440 : LIR_Op(code, result, NULL)
1441 , _opr1(opr1)
1442 , _opr2(opr2)
1443 , _type(T_ILLEGAL)
1444 , _condition(condition)
1445 , _fpu_stack_size(0)
1446 , _tmp(LIR_OprFact::illegalOpr) {
1447 assert(code == lir_cmove, "code check");
1448 }
1450 LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result = LIR_OprFact::illegalOpr,
1451 CodeEmitInfo* info = NULL, BasicType type = T_ILLEGAL)
1452 : LIR_Op(code, result, info)
1453 , _opr1(opr1)
1454 , _opr2(opr2)
1455 , _type(type)
1456 , _condition(lir_cond_unknown)
1457 , _fpu_stack_size(0)
1458 , _tmp(LIR_OprFact::illegalOpr) {
1459 assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check");
1460 }
1462 LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, LIR_Opr tmp)
1463 : LIR_Op(code, result, NULL)
1464 , _opr1(opr1)
1465 , _opr2(opr2)
1466 , _type(T_ILLEGAL)
1467 , _condition(lir_cond_unknown)
1468 , _fpu_stack_size(0)
1469 , _tmp(tmp) {
1470 assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check");
1471 }
1473 LIR_Opr in_opr1() const { return _opr1; }
1474 LIR_Opr in_opr2() const { return _opr2; }
1475 BasicType type() const { return _type; }
1476 LIR_Opr tmp_opr() const { return _tmp; }
1477 LIR_Condition condition() const {
1478 assert(code() == lir_cmp || code() == lir_cmove, "only valid for cmp and cmove"); return _condition;
1479 }
1481 void set_fpu_stack_size(int size) { _fpu_stack_size = size; }
1482 int fpu_stack_size() const { return _fpu_stack_size; }
1484 void set_in_opr1(LIR_Opr opr) { _opr1 = opr; }
1485 void set_in_opr2(LIR_Opr opr) { _opr2 = opr; }
1487 virtual void emit_code(LIR_Assembler* masm);
1488 virtual LIR_Op2* as_Op2() { return this; }
1489 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1490 };
1492 class LIR_OpAllocArray : public LIR_Op {
1493 friend class LIR_OpVisitState;
1495 private:
1496 LIR_Opr _klass;
1497 LIR_Opr _len;
1498 LIR_Opr _tmp1;
1499 LIR_Opr _tmp2;
1500 LIR_Opr _tmp3;
1501 LIR_Opr _tmp4;
1502 BasicType _type;
1503 CodeStub* _stub;
1505 public:
1506 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)
1507 : LIR_Op(lir_alloc_array, result, NULL)
1508 , _klass(klass)
1509 , _len(len)
1510 , _tmp1(t1)
1511 , _tmp2(t2)
1512 , _tmp3(t3)
1513 , _tmp4(t4)
1514 , _type(type)
1515 , _stub(stub) {}
1517 LIR_Opr klass() const { return _klass; }
1518 LIR_Opr len() const { return _len; }
1519 LIR_Opr obj() const { return result_opr(); }
1520 LIR_Opr tmp1() const { return _tmp1; }
1521 LIR_Opr tmp2() const { return _tmp2; }
1522 LIR_Opr tmp3() const { return _tmp3; }
1523 LIR_Opr tmp4() const { return _tmp4; }
1524 BasicType type() const { return _type; }
1525 CodeStub* stub() const { return _stub; }
1527 virtual void emit_code(LIR_Assembler* masm);
1528 virtual LIR_OpAllocArray * as_OpAllocArray () { return this; }
1529 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1530 };
1533 class LIR_Op3: public LIR_Op {
1534 friend class LIR_OpVisitState;
1536 private:
1537 LIR_Opr _opr1;
1538 LIR_Opr _opr2;
1539 LIR_Opr _opr3;
1540 public:
1541 LIR_Op3(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr opr3, LIR_Opr result, CodeEmitInfo* info = NULL)
1542 : LIR_Op(code, result, info)
1543 , _opr1(opr1)
1544 , _opr2(opr2)
1545 , _opr3(opr3) { assert(is_in_range(code, begin_op3, end_op3), "code check"); }
1546 LIR_Opr in_opr1() const { return _opr1; }
1547 LIR_Opr in_opr2() const { return _opr2; }
1548 LIR_Opr in_opr3() const { return _opr3; }
1550 virtual void emit_code(LIR_Assembler* masm);
1551 virtual LIR_Op3* as_Op3() { return this; }
1552 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1553 };
1556 //--------------------------------
1557 class LabelObj: public CompilationResourceObj {
1558 private:
1559 Label _label;
1560 public:
1561 LabelObj() {}
1562 Label* label() { return &_label; }
1563 };
1566 class LIR_OpLock: public LIR_Op {
1567 friend class LIR_OpVisitState;
1569 private:
1570 LIR_Opr _hdr;
1571 LIR_Opr _obj;
1572 LIR_Opr _lock;
1573 LIR_Opr _scratch;
1574 CodeStub* _stub;
1575 public:
1576 LIR_OpLock(LIR_Code code, LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info)
1577 : LIR_Op(code, LIR_OprFact::illegalOpr, info)
1578 , _hdr(hdr)
1579 , _obj(obj)
1580 , _lock(lock)
1581 , _scratch(scratch)
1582 , _stub(stub) {}
1584 LIR_Opr hdr_opr() const { return _hdr; }
1585 LIR_Opr obj_opr() const { return _obj; }
1586 LIR_Opr lock_opr() const { return _lock; }
1587 LIR_Opr scratch_opr() const { return _scratch; }
1588 CodeStub* stub() const { return _stub; }
1590 virtual void emit_code(LIR_Assembler* masm);
1591 virtual LIR_OpLock* as_OpLock() { return this; }
1592 void print_instr(outputStream* out) const PRODUCT_RETURN;
1593 };
1596 class LIR_OpDelay: public LIR_Op {
1597 friend class LIR_OpVisitState;
1599 private:
1600 LIR_Op* _op;
1602 public:
1603 LIR_OpDelay(LIR_Op* op, CodeEmitInfo* info):
1604 LIR_Op(lir_delay_slot, LIR_OprFact::illegalOpr, info),
1605 _op(op) {
1606 assert(op->code() == lir_nop || LIRFillDelaySlots, "should be filling with nops");
1607 }
1608 virtual void emit_code(LIR_Assembler* masm);
1609 virtual LIR_OpDelay* as_OpDelay() { return this; }
1610 void print_instr(outputStream* out) const PRODUCT_RETURN;
1611 LIR_Op* delay_op() const { return _op; }
1612 CodeEmitInfo* call_info() const { return info(); }
1613 };
1616 // LIR_OpCompareAndSwap
1617 class LIR_OpCompareAndSwap : public LIR_Op {
1618 friend class LIR_OpVisitState;
1620 private:
1621 LIR_Opr _addr;
1622 LIR_Opr _cmp_value;
1623 LIR_Opr _new_value;
1624 LIR_Opr _tmp1;
1625 LIR_Opr _tmp2;
1627 public:
1628 LIR_OpCompareAndSwap(LIR_Code code, LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, LIR_Opr t1, LIR_Opr t2)
1629 : LIR_Op(code, LIR_OprFact::illegalOpr, NULL) // no result, no info
1630 , _addr(addr)
1631 , _cmp_value(cmp_value)
1632 , _new_value(new_value)
1633 , _tmp1(t1)
1634 , _tmp2(t2) { }
1636 LIR_Opr addr() const { return _addr; }
1637 LIR_Opr cmp_value() const { return _cmp_value; }
1638 LIR_Opr new_value() const { return _new_value; }
1639 LIR_Opr tmp1() const { return _tmp1; }
1640 LIR_Opr tmp2() const { return _tmp2; }
1642 virtual void emit_code(LIR_Assembler* masm);
1643 virtual LIR_OpCompareAndSwap * as_OpCompareAndSwap () { return this; }
1644 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1645 };
1647 // LIR_OpProfileCall
1648 class LIR_OpProfileCall : public LIR_Op {
1649 friend class LIR_OpVisitState;
1651 private:
1652 ciMethod* _profiled_method;
1653 int _profiled_bci;
1654 LIR_Opr _mdo;
1655 LIR_Opr _recv;
1656 LIR_Opr _tmp1;
1657 ciKlass* _known_holder;
1659 public:
1660 // Destroys recv
1661 LIR_OpProfileCall(LIR_Code code, ciMethod* profiled_method, int profiled_bci, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* known_holder)
1662 : LIR_Op(code, LIR_OprFact::illegalOpr, NULL) // no result, no info
1663 , _profiled_method(profiled_method)
1664 , _profiled_bci(profiled_bci)
1665 , _mdo(mdo)
1666 , _recv(recv)
1667 , _tmp1(t1)
1668 , _known_holder(known_holder) { }
1670 ciMethod* profiled_method() const { return _profiled_method; }
1671 int profiled_bci() const { return _profiled_bci; }
1672 LIR_Opr mdo() const { return _mdo; }
1673 LIR_Opr recv() const { return _recv; }
1674 LIR_Opr tmp1() const { return _tmp1; }
1675 ciKlass* known_holder() const { return _known_holder; }
1677 virtual void emit_code(LIR_Assembler* masm);
1678 virtual LIR_OpProfileCall* as_OpProfileCall() { return this; }
1679 virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
1680 };
1683 class LIR_InsertionBuffer;
1685 //--------------------------------LIR_List---------------------------------------------------
1686 // Maintains a list of LIR instructions (one instance of LIR_List per basic block)
1687 // The LIR instructions are appended by the LIR_List class itself;
1688 //
1689 // Notes:
1690 // - all offsets are(should be) in bytes
1691 // - local positions are specified with an offset, with offset 0 being local 0
1693 class LIR_List: public CompilationResourceObj {
1694 private:
1695 LIR_OpList _operations;
1697 Compilation* _compilation;
1698 #ifndef PRODUCT
1699 BlockBegin* _block;
1700 #endif
1701 #ifdef ASSERT
1702 const char * _file;
1703 int _line;
1704 #endif
1706 void append(LIR_Op* op) {
1707 if (op->source() == NULL)
1708 op->set_source(_compilation->current_instruction());
1709 #ifndef PRODUCT
1710 if (PrintIRWithLIR) {
1711 _compilation->maybe_print_current_instruction();
1712 op->print(); tty->cr();
1713 }
1714 #endif // PRODUCT
1716 _operations.append(op);
1718 #ifdef ASSERT
1719 op->verify();
1720 op->set_file_and_line(_file, _line);
1721 _file = NULL;
1722 _line = 0;
1723 #endif
1724 }
1726 public:
1727 LIR_List(Compilation* compilation, BlockBegin* block = NULL);
1729 #ifdef ASSERT
1730 void set_file_and_line(const char * file, int line);
1731 #endif
1733 //---------- accessors ---------------
1734 LIR_OpList* instructions_list() { return &_operations; }
1735 int length() const { return _operations.length(); }
1736 LIR_Op* at(int i) const { return _operations.at(i); }
1738 NOT_PRODUCT(BlockBegin* block() const { return _block; });
1740 // insert LIR_Ops in buffer to right places in LIR_List
1741 void append(LIR_InsertionBuffer* buffer);
1743 //---------- mutators ---------------
1744 void insert_before(int i, LIR_List* op_list) { _operations.insert_before(i, op_list->instructions_list()); }
1745 void insert_before(int i, LIR_Op* op) { _operations.insert_before(i, op); }
1747 //---------- printing -------------
1748 void print_instructions() PRODUCT_RETURN;
1751 //---------- instructions -------------
1752 void call_opt_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
1753 address dest, LIR_OprList* arguments,
1754 CodeEmitInfo* info) {
1755 append(new LIR_OpJavaCall(lir_optvirtual_call, method, receiver, result, dest, arguments, info));
1756 }
1757 void call_static(ciMethod* method, LIR_Opr result,
1758 address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
1759 append(new LIR_OpJavaCall(lir_static_call, method, LIR_OprFact::illegalOpr, result, dest, arguments, info));
1760 }
1761 void call_icvirtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
1762 address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
1763 append(new LIR_OpJavaCall(lir_icvirtual_call, method, receiver, result, dest, arguments, info));
1764 }
1765 void call_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
1766 intptr_t vtable_offset, LIR_OprList* arguments, CodeEmitInfo* info) {
1767 append(new LIR_OpJavaCall(lir_virtual_call, method, receiver, result, vtable_offset, arguments, info));
1768 }
1770 void get_thread(LIR_Opr result) { append(new LIR_Op0(lir_get_thread, result)); }
1771 void word_align() { append(new LIR_Op0(lir_word_align)); }
1772 void membar() { append(new LIR_Op0(lir_membar)); }
1773 void membar_acquire() { append(new LIR_Op0(lir_membar_acquire)); }
1774 void membar_release() { append(new LIR_Op0(lir_membar_release)); }
1776 void nop() { append(new LIR_Op0(lir_nop)); }
1777 void build_frame() { append(new LIR_Op0(lir_build_frame)); }
1779 void std_entry(LIR_Opr receiver) { append(new LIR_Op0(lir_std_entry, receiver)); }
1780 void osr_entry(LIR_Opr osrPointer) { append(new LIR_Op0(lir_osr_entry, osrPointer)); }
1782 void branch_destination(Label* lbl) { append(new LIR_OpLabel(lbl)); }
1784 void negate(LIR_Opr from, LIR_Opr to) { append(new LIR_Op1(lir_neg, from, to)); }
1785 void leal(LIR_Opr from, LIR_Opr result_reg) { append(new LIR_Op1(lir_leal, from, result_reg)); }
1787 // result is a stack location for old backend and vreg for UseLinearScan
1788 // stack_loc_temp is an illegal register for old backend
1789 void roundfp(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result) { append(new LIR_OpRoundFP(reg, stack_loc_temp, result)); }
1790 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)); }
1791 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)); }
1792 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)); }
1793 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)); }
1794 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)); }
1795 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)); }
1797 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)); }
1799 void oop2reg (jobject o, LIR_Opr reg) { append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o), reg)); }
1800 void oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info);
1802 void return_op(LIR_Opr result) { append(new LIR_Op1(lir_return, result)); }
1804 void safepoint(LIR_Opr tmp, CodeEmitInfo* info) { append(new LIR_Op1(lir_safepoint, tmp, info)); }
1806 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)); }
1808 void logical_and (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_and, left, right, dst)); }
1809 void logical_or (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_or, left, right, dst)); }
1810 void logical_xor (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_xor, left, right, dst)); }
1812 void null_check(LIR_Opr opr, CodeEmitInfo* info) { append(new LIR_Op1(lir_null_check, opr, info)); }
1813 void throw_exception(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) { append(new LIR_Op2(lir_throw, exceptionPC, exceptionOop, LIR_OprFact::illegalOpr, info)); }
1814 void unwind_exception(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) { append(new LIR_Op2(lir_unwind, exceptionPC, exceptionOop, LIR_OprFact::illegalOpr, info)); }
1816 void compare_to (LIR_Opr left, LIR_Opr right, LIR_Opr dst) {
1817 append(new LIR_Op2(lir_compare_to, left, right, dst));
1818 }
1820 void push(LIR_Opr opr) { append(new LIR_Op1(lir_push, opr)); }
1821 void pop(LIR_Opr reg) { append(new LIR_Op1(lir_pop, reg)); }
1823 void cmp(LIR_Condition condition, LIR_Opr left, LIR_Opr right, CodeEmitInfo* info = NULL) {
1824 append(new LIR_Op2(lir_cmp, condition, left, right, info));
1825 }
1826 void cmp(LIR_Condition condition, LIR_Opr left, int right, CodeEmitInfo* info = NULL) {
1827 cmp(condition, left, LIR_OprFact::intConst(right), info);
1828 }
1830 void cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info);
1831 void cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info);
1833 void cmove(LIR_Condition condition, LIR_Opr src1, LIR_Opr src2, LIR_Opr dst) {
1834 append(new LIR_Op2(lir_cmove, condition, src1, src2, dst));
1835 }
1837 void cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, LIR_Opr t1, LIR_Opr t2);
1838 void cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, LIR_Opr t1, LIR_Opr t2);
1839 void cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, LIR_Opr t1, LIR_Opr t2);
1841 void abs (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_abs , from, tmp, to)); }
1842 void sqrt(LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_sqrt, from, tmp, to)); }
1843 void log (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_log, from, LIR_OprFact::illegalOpr, to, tmp)); }
1844 void log10 (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_log10, from, LIR_OprFact::illegalOpr, to, tmp)); }
1845 void sin (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_Op2(lir_sin , from, tmp1, to, tmp2)); }
1846 void cos (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_Op2(lir_cos , from, tmp1, to, tmp2)); }
1847 void tan (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_Op2(lir_tan , from, tmp1, to, tmp2)); }
1849 void add (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_add, left, right, res)); }
1850 void sub (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_sub, left, right, res, info)); }
1851 void mul (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_mul, left, right, res)); }
1852 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)); }
1853 void div (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_div, left, right, res, info)); }
1854 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)); }
1855 void rem (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_rem, left, right, res, info)); }
1857 void volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
1858 void volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code);
1860 void load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none);
1862 void prefetch(LIR_Address* addr, bool is_store);
1864 void store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
1865 void store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
1866 void store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none);
1867 void volatile_store_mem_reg(LIR_Opr src, LIR_Address* address, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
1868 void volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code);
1870 void idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
1871 void idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
1872 void irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
1873 void irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
1875 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);
1876 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);
1878 // jump is an unconditional branch
1879 void jump(BlockBegin* block) {
1880 append(new LIR_OpBranch(lir_cond_always, T_ILLEGAL, block));
1881 }
1882 void jump(CodeStub* stub) {
1883 append(new LIR_OpBranch(lir_cond_always, T_ILLEGAL, stub));
1884 }
1885 void branch(LIR_Condition cond, Label* lbl) { append(new LIR_OpBranch(cond, lbl)); }
1886 void branch(LIR_Condition cond, BasicType type, BlockBegin* block) {
1887 assert(type != T_FLOAT && type != T_DOUBLE, "no fp comparisons");
1888 append(new LIR_OpBranch(cond, type, block));
1889 }
1890 void branch(LIR_Condition cond, BasicType type, CodeStub* stub) {
1891 assert(type != T_FLOAT && type != T_DOUBLE, "no fp comparisons");
1892 append(new LIR_OpBranch(cond, type, stub));
1893 }
1894 void branch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* unordered) {
1895 assert(type == T_FLOAT || type == T_DOUBLE, "fp comparisons only");
1896 append(new LIR_OpBranch(cond, type, block, unordered));
1897 }
1899 void shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
1900 void shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
1901 void unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
1903 void shift_left(LIR_Opr value, int count, LIR_Opr dst) { shift_left(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
1904 void shift_right(LIR_Opr value, int count, LIR_Opr dst) { shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
1905 void unsigned_shift_right(LIR_Opr value, int count, LIR_Opr dst) { unsigned_shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
1907 void lcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_cmp_l2i, left, right, dst)); }
1908 void fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less);
1910 void call_runtime_leaf(address routine, LIR_Opr tmp, LIR_Opr result, LIR_OprList* arguments) {
1911 append(new LIR_OpRTCall(routine, tmp, result, arguments));
1912 }
1914 void call_runtime(address routine, LIR_Opr tmp, LIR_Opr result,
1915 LIR_OprList* arguments, CodeEmitInfo* info) {
1916 append(new LIR_OpRTCall(routine, tmp, result, arguments, info));
1917 }
1919 void load_stack_address_monitor(int monitor_ix, LIR_Opr dst) { append(new LIR_Op1(lir_monaddr, LIR_OprFact::intConst(monitor_ix), dst)); }
1920 void unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, CodeStub* stub);
1921 void lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info);
1923 void set_24bit_fpu() { append(new LIR_Op0(lir_24bit_FPU )); }
1924 void restore_fpu() { append(new LIR_Op0(lir_reset_FPU )); }
1925 void breakpoint() { append(new LIR_Op0(lir_breakpoint)); }
1927 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)); }
1929 void fpop_raw() { append(new LIR_Op0(lir_fpop_raw)); }
1931 void checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
1932 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1933 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
1934 ciMethod* profiled_method, int profiled_bci);
1935 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);
1936 void store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception);
1938 // methodDataOop profiling
1939 void profile_call(ciMethod* method, int bci, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* cha_klass) { append(new LIR_OpProfileCall(lir_profile_call, method, bci, mdo, recv, t1, cha_klass)); }
1940 };
1942 void print_LIR(BlockList* blocks);
1944 class LIR_InsertionBuffer : public CompilationResourceObj {
1945 private:
1946 LIR_List* _lir; // the lir list where ops of this buffer should be inserted later (NULL when uninitialized)
1948 // list of insertion points. index and count are stored alternately:
1949 // _index_and_count[i * 2]: the index into lir list where "count" ops should be inserted
1950 // _index_and_count[i * 2 + 1]: the number of ops to be inserted at index
1951 intStack _index_and_count;
1953 // the LIR_Ops to be inserted
1954 LIR_OpList _ops;
1956 void append_new(int index, int count) { _index_and_count.append(index); _index_and_count.append(count); }
1957 void set_index_at(int i, int value) { _index_and_count.at_put((i << 1), value); }
1958 void set_count_at(int i, int value) { _index_and_count.at_put((i << 1) + 1, value); }
1960 #ifdef ASSERT
1961 void verify();
1962 #endif
1963 public:
1964 LIR_InsertionBuffer() : _lir(NULL), _index_and_count(8), _ops(8) { }
1966 // must be called before using the insertion buffer
1967 void init(LIR_List* lir) { assert(!initialized(), "already initialized"); _lir = lir; _index_and_count.clear(); _ops.clear(); }
1968 bool initialized() const { return _lir != NULL; }
1969 // called automatically when the buffer is appended to the LIR_List
1970 void finish() { _lir = NULL; }
1972 // accessors
1973 LIR_List* lir_list() const { return _lir; }
1974 int number_of_insertion_points() const { return _index_and_count.length() >> 1; }
1975 int index_at(int i) const { return _index_and_count.at((i << 1)); }
1976 int count_at(int i) const { return _index_and_count.at((i << 1) + 1); }
1978 int number_of_ops() const { return _ops.length(); }
1979 LIR_Op* op_at(int i) const { return _ops.at(i); }
1981 // append an instruction to the buffer
1982 void append(int index, LIR_Op* op);
1984 // instruction
1985 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)); }
1986 };
1989 //
1990 // LIR_OpVisitState is used for manipulating LIR_Ops in an abstract way.
1991 // Calling a LIR_Op's visit function with a LIR_OpVisitState causes
1992 // information about the input, output and temporaries used by the
1993 // op to be recorded. It also records whether the op has call semantics
1994 // and also records all the CodeEmitInfos used by this op.
1995 //
1998 class LIR_OpVisitState: public StackObj {
1999 public:
2000 typedef enum { inputMode, firstMode = inputMode, tempMode, outputMode, numModes, invalidMode = -1 } OprMode;
2002 enum {
2003 maxNumberOfOperands = 16,
2004 maxNumberOfInfos = 4
2005 };
2007 private:
2008 LIR_Op* _op;
2010 // optimization: the operands and infos are not stored in a variable-length
2011 // list, but in a fixed-size array to save time of size checks and resizing
2012 int _oprs_len[numModes];
2013 LIR_Opr* _oprs_new[numModes][maxNumberOfOperands];
2014 int _info_len;
2015 CodeEmitInfo* _info_new[maxNumberOfInfos];
2017 bool _has_call;
2018 bool _has_slow_case;
2021 // only include register operands
2022 // addresses are decomposed to the base and index registers
2023 // constants and stack operands are ignored
2024 void append(LIR_Opr& opr, OprMode mode) {
2025 assert(opr->is_valid(), "should not call this otherwise");
2026 assert(mode >= 0 && mode < numModes, "bad mode");
2028 if (opr->is_register()) {
2029 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
2030 _oprs_new[mode][_oprs_len[mode]++] = &opr;
2032 } else if (opr->is_pointer()) {
2033 LIR_Address* address = opr->as_address_ptr();
2034 if (address != NULL) {
2035 // special handling for addresses: add base and index register of the address
2036 // both are always input operands!
2037 if (address->_base->is_valid()) {
2038 assert(address->_base->is_register(), "must be");
2039 assert(_oprs_len[inputMode] < maxNumberOfOperands, "array overflow");
2040 _oprs_new[inputMode][_oprs_len[inputMode]++] = &address->_base;
2041 }
2042 if (address->_index->is_valid()) {
2043 assert(address->_index->is_register(), "must be");
2044 assert(_oprs_len[inputMode] < maxNumberOfOperands, "array overflow");
2045 _oprs_new[inputMode][_oprs_len[inputMode]++] = &address->_index;
2046 }
2048 } else {
2049 assert(opr->is_constant(), "constant operands are not processed");
2050 }
2051 } else {
2052 assert(opr->is_stack(), "stack operands are not processed");
2053 }
2054 }
2056 void append(CodeEmitInfo* info) {
2057 assert(info != NULL, "should not call this otherwise");
2058 assert(_info_len < maxNumberOfInfos, "array overflow");
2059 _info_new[_info_len++] = info;
2060 }
2062 public:
2063 LIR_OpVisitState() { reset(); }
2065 LIR_Op* op() const { return _op; }
2066 void set_op(LIR_Op* op) { reset(); _op = op; }
2068 bool has_call() const { return _has_call; }
2069 bool has_slow_case() const { return _has_slow_case; }
2071 void reset() {
2072 _op = NULL;
2073 _has_call = false;
2074 _has_slow_case = false;
2076 _oprs_len[inputMode] = 0;
2077 _oprs_len[tempMode] = 0;
2078 _oprs_len[outputMode] = 0;
2079 _info_len = 0;
2080 }
2083 int opr_count(OprMode mode) const {
2084 assert(mode >= 0 && mode < numModes, "bad mode");
2085 return _oprs_len[mode];
2086 }
2088 LIR_Opr opr_at(OprMode mode, int index) const {
2089 assert(mode >= 0 && mode < numModes, "bad mode");
2090 assert(index >= 0 && index < _oprs_len[mode], "index out of bound");
2091 return *_oprs_new[mode][index];
2092 }
2094 void set_opr_at(OprMode mode, int index, LIR_Opr opr) const {
2095 assert(mode >= 0 && mode < numModes, "bad mode");
2096 assert(index >= 0 && index < _oprs_len[mode], "index out of bound");
2097 *_oprs_new[mode][index] = opr;
2098 }
2100 int info_count() const {
2101 return _info_len;
2102 }
2104 CodeEmitInfo* info_at(int index) const {
2105 assert(index < _info_len, "index out of bounds");
2106 return _info_new[index];
2107 }
2109 XHandlers* all_xhandler();
2111 // collects all register operands of the instruction
2112 void visit(LIR_Op* op);
2114 #if ASSERT
2115 // check that an operation has no operands
2116 bool no_operands(LIR_Op* op);
2117 #endif
2119 // LIR_Op visitor functions use these to fill in the state
2120 void do_input(LIR_Opr& opr) { append(opr, LIR_OpVisitState::inputMode); }
2121 void do_output(LIR_Opr& opr) { append(opr, LIR_OpVisitState::outputMode); }
2122 void do_temp(LIR_Opr& opr) { append(opr, LIR_OpVisitState::tempMode); }
2123 void do_info(CodeEmitInfo* info) { append(info); }
2125 void do_stub(CodeStub* stub);
2126 void do_call() { _has_call = true; }
2127 void do_slow_case() { _has_slow_case = true; }
2128 void do_slow_case(CodeEmitInfo* info) {
2129 _has_slow_case = true;
2130 append(info);
2131 }
2132 };
2135 inline LIR_Opr LIR_OprDesc::illegalOpr() { return LIR_OprFact::illegalOpr; };
