• file
• revisions
• annotate
• diff
• comparison
• raw

src/share/vm/c1/c1_LIR.hpp@614b7e3a9f48 (annotated)

src/share/vm/c1/c1_LIR.hpp

Fri, 15 Jan 2010 16:15:45 -0800

author

never

date

Fri, 15 Jan 2010 16:15:45 -0800

changeset 1610

614b7e3a9f48

parent 1388

ff1a29907b6c

child 1730

3cf667df43ef

permissions

-rw-r--r--

6879943: CTW failure jdk6_18/hotspot/src/share/vm/c1/c1_LIR.hpp:2029
Reviewed-by: kvn, cfang

duke@435	1	/*
never@1610	2	* Copyright 2000-2010 Sun Microsystems, Inc. All Rights Reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
duke@435	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435	20	* CA 95054 USA or visit www.sun.com if you need additional information or
duke@435	21	* have any questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	class BlockBegin;
duke@435	26	class BlockList;
duke@435	27	class LIR_Assembler;
duke@435	28	class CodeEmitInfo;
duke@435	29	class CodeStub;
duke@435	30	class CodeStubList;
duke@435	31	class ArrayCopyStub;
duke@435	32	class LIR_Op;
duke@435	33	class ciType;
duke@435	34	class ValueType;
duke@435	35	class LIR_OpVisitState;
duke@435	36	class FpuStackSim;
duke@435	37
duke@435	38	//---------------------------------------------------------------------
duke@435	39	// LIR Operands
duke@435	40	// LIR_OprDesc
duke@435	41	// LIR_OprPtr
duke@435	42	// LIR_Const
duke@435	43	// LIR_Address
duke@435	44	//---------------------------------------------------------------------
duke@435	45	class LIR_OprDesc;
duke@435	46	class LIR_OprPtr;
duke@435	47	class LIR_Const;
duke@435	48	class LIR_Address;
duke@435	49	class LIR_OprVisitor;
duke@435	50
duke@435	51
duke@435	52	typedef LIR_OprDesc* LIR_Opr;
duke@435	53	typedef int RegNr;
duke@435	54
duke@435	55	define_array(LIR_OprArray, LIR_Opr)
duke@435	56	define_stack(LIR_OprList, LIR_OprArray)
duke@435	57
duke@435	58	define_array(LIR_OprRefArray, LIR_Opr*)
duke@435	59	define_stack(LIR_OprRefList, LIR_OprRefArray)
duke@435	60
duke@435	61	define_array(CodeEmitInfoArray, CodeEmitInfo*)
duke@435	62	define_stack(CodeEmitInfoList, CodeEmitInfoArray)
duke@435	63
duke@435	64	define_array(LIR_OpArray, LIR_Op*)
duke@435	65	define_stack(LIR_OpList, LIR_OpArray)
duke@435	66
duke@435	67	// define LIR_OprPtr early so LIR_OprDesc can refer to it
duke@435	68	class LIR_OprPtr: public CompilationResourceObj {
duke@435	69	public:
duke@435	70	bool is_oop_pointer() const { return (type() == T_OBJECT); }
duke@435	71	bool is_float_kind() const { BasicType t = type(); return (t == T_FLOAT) || (t == T_DOUBLE); }
duke@435	72
duke@435	73	virtual LIR_Const* as_constant() { return NULL; }
duke@435	74	virtual LIR_Address* as_address() { return NULL; }
duke@435	75	virtual BasicType type() const = 0;
duke@435	76	virtual void print_value_on(outputStream* out) const = 0;
duke@435	77	};
duke@435	78
duke@435	79
duke@435	80
duke@435	81	// LIR constants
duke@435	82	class LIR_Const: public LIR_OprPtr {
duke@435	83	private:
duke@435	84	JavaValue _value;
duke@435	85
duke@435	86	void type_check(BasicType t) const { assert(type() == t, "type check"); }
duke@435	87	void type_check(BasicType t1, BasicType t2) const { assert(type() == t1 || type() == t2, "type check"); }
duke@435	88
duke@435	89	public:
duke@435	90	LIR_Const(jint i) { _value.set_type(T_INT); _value.set_jint(i); }
duke@435	91	LIR_Const(jlong l) { _value.set_type(T_LONG); _value.set_jlong(l); }
duke@435	92	LIR_Const(jfloat f) { _value.set_type(T_FLOAT); _value.set_jfloat(f); }
duke@435	93	LIR_Const(jdouble d) { _value.set_type(T_DOUBLE); _value.set_jdouble(d); }
duke@435	94	LIR_Const(jobject o) { _value.set_type(T_OBJECT); _value.set_jobject(o); }
duke@435	95	LIR_Const(void* p) {
duke@435	96	#ifdef _LP64
duke@435	97	assert(sizeof(jlong) >= sizeof(p), "too small");;
duke@435	98	_value.set_type(T_LONG); _value.set_jlong((jlong)p);
duke@435	99	#else
duke@435	100	assert(sizeof(jint) >= sizeof(p), "too small");;
duke@435	101	_value.set_type(T_INT); _value.set_jint((jint)p);
duke@435	102	#endif
duke@435	103	}
duke@435	104
duke@435	105	virtual BasicType type() const { return _value.get_type(); }
duke@435	106	virtual LIR_Const* as_constant() { return this; }
duke@435	107
duke@435	108	jint as_jint() const { type_check(T_INT ); return _value.get_jint(); }
duke@435	109	jlong as_jlong() const { type_check(T_LONG ); return _value.get_jlong(); }
duke@435	110	jfloat as_jfloat() const { type_check(T_FLOAT ); return _value.get_jfloat(); }
duke@435	111	jdouble as_jdouble() const { type_check(T_DOUBLE); return _value.get_jdouble(); }
duke@435	112	jobject as_jobject() const { type_check(T_OBJECT); return _value.get_jobject(); }
duke@435	113	jint as_jint_lo() const { type_check(T_LONG ); return low(_value.get_jlong()); }
duke@435	114	jint as_jint_hi() const { type_check(T_LONG ); return high(_value.get_jlong()); }
duke@435	115
duke@435	116	#ifdef _LP64
duke@435	117	address as_pointer() const { type_check(T_LONG ); return (address)_value.get_jlong(); }
duke@435	118	#else
duke@435	119	address as_pointer() const { type_check(T_INT ); return (address)_value.get_jint(); }
duke@435	120	#endif
duke@435	121
duke@435	122
duke@435	123	jint as_jint_bits() const { type_check(T_FLOAT, T_INT); return _value.get_jint(); }
duke@435	124	jint as_jint_lo_bits() const {
duke@435	125	if (type() == T_DOUBLE) {
duke@435	126	return low(jlong_cast(_value.get_jdouble()));
duke@435	127	} else {
duke@435	128	return as_jint_lo();
duke@435	129	}
duke@435	130	}
duke@435	131	jint as_jint_hi_bits() const {
duke@435	132	if (type() == T_DOUBLE) {
duke@435	133	return high(jlong_cast(_value.get_jdouble()));
duke@435	134	} else {
duke@435	135	return as_jint_hi();
duke@435	136	}
duke@435	137	}
never@739	138	jlong as_jlong_bits() const {
never@739	139	if (type() == T_DOUBLE) {
never@739	140	return jlong_cast(_value.get_jdouble());
never@739	141	} else {
never@739	142	return as_jlong();
never@739	143	}
never@739	144	}
duke@435	145
duke@435	146	virtual void print_value_on(outputStream* out) const PRODUCT_RETURN;
duke@435	147
duke@435	148
duke@435	149	bool is_zero_float() {
duke@435	150	jfloat f = as_jfloat();
duke@435	151	jfloat ok = 0.0f;
duke@435	152	return jint_cast(f) == jint_cast(ok);
duke@435	153	}
duke@435	154
duke@435	155	bool is_one_float() {
duke@435	156	jfloat f = as_jfloat();
duke@435	157	return !g_isnan(f) && g_isfinite(f) && f == 1.0;
duke@435	158	}
duke@435	159
duke@435	160	bool is_zero_double() {
duke@435	161	jdouble d = as_jdouble();
duke@435	162	jdouble ok = 0.0;
duke@435	163	return jlong_cast(d) == jlong_cast(ok);
duke@435	164	}
duke@435	165
duke@435	166	bool is_one_double() {
duke@435	167	jdouble d = as_jdouble();
duke@435	168	return !g_isnan(d) && g_isfinite(d) && d == 1.0;
duke@435	169	}
duke@435	170	};
duke@435	171
duke@435	172
duke@435	173	//---------------------LIR Operand descriptor------------------------------------
duke@435	174	//
duke@435	175	// The class LIR_OprDesc represents a LIR instruction operand;
duke@435	176	// it can be a register (ALU/FPU), stack location or a constant;
duke@435	177	// Constants and addresses are represented as resource area allocated
duke@435	178	// structures (see above).
duke@435	179	// Registers and stack locations are inlined into the this pointer
duke@435	180	// (see value function).
duke@435	181
duke@435	182	class LIR_OprDesc: public CompilationResourceObj {
duke@435	183	public:
duke@435	184	// value structure:
duke@435	185	// data opr-type opr-kind
duke@435	186	// +--------------+-------+-------+
duke@435	187	// [max...........|7 6 5 4|3 2 1 0]
duke@435	188	// ^
duke@435	189	// is_pointer bit
duke@435	190	//
duke@435	191	// lowest bit cleared, means it is a structure pointer
duke@435	192	// we need 4 bits to represent types
duke@435	193
duke@435	194	private:
duke@435	195	friend class LIR_OprFact;
duke@435	196
duke@435	197	// Conversion
duke@435	198	intptr_t value() const { return (intptr_t) this; }
duke@435	199
duke@435	200	bool check_value_mask(intptr_t mask, intptr_t masked_value) const {
duke@435	201	return (value() & mask) == masked_value;
duke@435	202	}
duke@435	203
duke@435	204	enum OprKind {
duke@435	205	pointer_value = 0
duke@435	206	, stack_value = 1
duke@435	207	, cpu_register = 3
duke@435	208	, fpu_register = 5
duke@435	209	, illegal_value = 7
duke@435	210	};
duke@435	211
duke@435	212	enum OprBits {
duke@435	213	pointer_bits = 1
duke@435	214	, kind_bits = 3
duke@435	215	, type_bits = 4
duke@435	216	, size_bits = 2
duke@435	217	, destroys_bits = 1
duke@435	218	, virtual_bits = 1
duke@435	219	, is_xmm_bits = 1
duke@435	220	, last_use_bits = 1
duke@435	221	, is_fpu_stack_offset_bits = 1 // used in assertion checking on x86 for FPU stack slot allocation
duke@435	222	, non_data_bits = kind_bits + type_bits + size_bits + destroys_bits + last_use_bits +
duke@435	223	is_fpu_stack_offset_bits + virtual_bits + is_xmm_bits
duke@435	224	, data_bits = BitsPerInt - non_data_bits
duke@435	225	, reg_bits = data_bits / 2 // for two registers in one value encoding
duke@435	226	};
duke@435	227
duke@435	228	enum OprShift {
duke@435	229	kind_shift = 0
duke@435	230	, type_shift = kind_shift + kind_bits
duke@435	231	, size_shift = type_shift + type_bits
duke@435	232	, destroys_shift = size_shift + size_bits
duke@435	233	, last_use_shift = destroys_shift + destroys_bits
duke@435	234	, is_fpu_stack_offset_shift = last_use_shift + last_use_bits
duke@435	235	, virtual_shift = is_fpu_stack_offset_shift + is_fpu_stack_offset_bits
duke@435	236	, is_xmm_shift = virtual_shift + virtual_bits
duke@435	237	, data_shift = is_xmm_shift + is_xmm_bits
duke@435	238	, reg1_shift = data_shift
duke@435	239	, reg2_shift = data_shift + reg_bits
duke@435	240
duke@435	241	};
duke@435	242
duke@435	243	enum OprSize {
duke@435	244	single_size = 0 << size_shift
duke@435	245	, double_size = 1 << size_shift
duke@435	246	};
duke@435	247
duke@435	248	enum OprMask {
duke@435	249	kind_mask = right_n_bits(kind_bits)
duke@435	250	, type_mask = right_n_bits(type_bits) << type_shift
duke@435	251	, size_mask = right_n_bits(size_bits) << size_shift
duke@435	252	, last_use_mask = right_n_bits(last_use_bits) << last_use_shift
duke@435	253	, is_fpu_stack_offset_mask = right_n_bits(is_fpu_stack_offset_bits) << is_fpu_stack_offset_shift
duke@435	254	, virtual_mask = right_n_bits(virtual_bits) << virtual_shift
duke@435	255	, is_xmm_mask = right_n_bits(is_xmm_bits) << is_xmm_shift
duke@435	256	, pointer_mask = right_n_bits(pointer_bits)
duke@435	257	, lower_reg_mask = right_n_bits(reg_bits)
duke@435	258	, no_type_mask = (int)(~(type_mask | last_use_mask | is_fpu_stack_offset_mask))
duke@435	259	};
duke@435	260
duke@435	261	uintptr_t data() const { return value() >> data_shift; }
duke@435	262	int lo_reg_half() const { return data() & lower_reg_mask; }
duke@435	263	int hi_reg_half() const { return (data() >> reg_bits) & lower_reg_mask; }
duke@435	264	OprKind kind_field() const { return (OprKind)(value() & kind_mask); }
duke@435	265	OprSize size_field() const { return (OprSize)(value() & size_mask); }
duke@435	266
duke@435	267	static char type_char(BasicType t);
duke@435	268
duke@435	269	public:
duke@435	270	enum {
duke@435	271	vreg_base = ConcreteRegisterImpl::number_of_registers,
duke@435	272	vreg_max = (1 << data_bits) - 1
duke@435	273	};
duke@435	274
duke@435	275	static inline LIR_Opr illegalOpr();
duke@435	276
duke@435	277	enum OprType {
duke@435	278	unknown_type = 0 << type_shift // means: not set (catch uninitialized types)
duke@435	279	, int_type = 1 << type_shift
duke@435	280	, long_type = 2 << type_shift
duke@435	281	, object_type = 3 << type_shift
duke@435	282	, pointer_type = 4 << type_shift
duke@435	283	, float_type = 5 << type_shift
duke@435	284	, double_type = 6 << type_shift
duke@435	285	};
duke@435	286	friend OprType as_OprType(BasicType t);
duke@435	287	friend BasicType as_BasicType(OprType t);
duke@435	288
duke@435	289	OprType type_field_valid() const { assert(is_register() || is_stack(), "should not be called otherwise"); return (OprType)(value() & type_mask); }
duke@435	290	OprType type_field() const { return is_illegal() ? unknown_type : (OprType)(value() & type_mask); }
duke@435	291
duke@435	292	static OprSize size_for(BasicType t) {
duke@435	293	switch (t) {
duke@435	294	case T_LONG:
duke@435	295	case T_DOUBLE:
duke@435	296	return double_size;
duke@435	297	break;
duke@435	298
duke@435	299	case T_FLOAT:
duke@435	300	case T_BOOLEAN:
duke@435	301	case T_CHAR:
duke@435	302	case T_BYTE:
duke@435	303	case T_SHORT:
duke@435	304	case T_INT:
duke@435	305	case T_OBJECT:
duke@435	306	case T_ARRAY:
duke@435	307	return single_size;
duke@435	308	break;
duke@435	309
duke@435	310	default:
duke@435	311	ShouldNotReachHere();
never@739	312	return single_size;
duke@435	313	}
duke@435	314	}
duke@435	315
duke@435	316
duke@435	317	void validate_type() const PRODUCT_RETURN;
duke@435	318
duke@435	319	BasicType type() const {
duke@435	320	if (is_pointer()) {
duke@435	321	return pointer()->type();
duke@435	322	}
duke@435	323	return as_BasicType(type_field());
duke@435	324	}
duke@435	325
duke@435	326
duke@435	327	ValueType* value_type() const { return as_ValueType(type()); }
duke@435	328
duke@435	329	char type_char() const { return type_char((is_pointer()) ? pointer()->type() : type()); }
duke@435	330
duke@435	331	bool is_equal(LIR_Opr opr) const { return this == opr; }
duke@435	332	// checks whether types are same
duke@435	333	bool is_same_type(LIR_Opr opr) const {
duke@435	334	assert(type_field() != unknown_type &&
duke@435	335	opr->type_field() != unknown_type, "shouldn't see unknown_type");
duke@435	336	return type_field() == opr->type_field();
duke@435	337	}
duke@435	338	bool is_same_register(LIR_Opr opr) {
duke@435	339	return (is_register() && opr->is_register() &&
duke@435	340	kind_field() == opr->kind_field() &&
duke@435	341	(value() & no_type_mask) == (opr->value() & no_type_mask));
duke@435	342	}
duke@435	343
duke@435	344	bool is_pointer() const { return check_value_mask(pointer_mask, pointer_value); }
duke@435	345	bool is_illegal() const { return kind_field() == illegal_value; }
duke@435	346	bool is_valid() const { return kind_field() != illegal_value; }
duke@435	347
duke@435	348	bool is_register() const { return is_cpu_register() || is_fpu_register(); }
duke@435	349	bool is_virtual() const { return is_virtual_cpu() || is_virtual_fpu(); }
duke@435	350
duke@435	351	bool is_constant() const { return is_pointer() && pointer()->as_constant() != NULL; }
duke@435	352	bool is_address() const { return is_pointer() && pointer()->as_address() != NULL; }
duke@435	353
duke@435	354	bool is_float_kind() const { return is_pointer() ? pointer()->is_float_kind() : (kind_field() == fpu_register); }
duke@435	355	bool is_oop() const;
duke@435	356
duke@435	357	// semantic for fpu- and xmm-registers:
duke@435	358	// * is_float and is_double return true for xmm_registers
duke@435	359	// (so is_single_fpu and is_single_xmm are true)
duke@435	360	// * So you must always check for is_???_xmm prior to is_???_fpu to
duke@435	361	// distinguish between fpu- and xmm-registers
duke@435	362
duke@435	363	bool is_stack() const { validate_type(); return check_value_mask(kind_mask, stack_value); }
duke@435	364	bool is_single_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | single_size); }
duke@435	365	bool is_double_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | double_size); }
duke@435	366
duke@435	367	bool is_cpu_register() const { validate_type(); return check_value_mask(kind_mask, cpu_register); }
duke@435	368	bool is_virtual_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register | virtual_mask); }
duke@435	369	bool is_fixed_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register); }
duke@435	370	bool is_single_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | single_size); }
duke@435	371	bool is_double_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | double_size); }
duke@435	372
duke@435	373	bool is_fpu_register() const { validate_type(); return check_value_mask(kind_mask, fpu_register); }
duke@435	374	bool is_virtual_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register | virtual_mask); }
duke@435	375	bool is_fixed_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register); }
duke@435	376	bool is_single_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | single_size); }
duke@435	377	bool is_double_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | double_size); }
duke@435	378
duke@435	379	bool is_xmm_register() const { validate_type(); return check_value_mask(kind_mask | is_xmm_mask, fpu_register | is_xmm_mask); }
duke@435	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); }
duke@435	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); }
duke@435	382
duke@435	383	// fast accessor functions for special bits that do not work for pointers
duke@435	384	// (in this functions, the check for is_pointer() is omitted)
duke@435	385	bool is_single_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, single_size); }
duke@435	386	bool is_double_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, double_size); }
duke@435	387	bool is_virtual_register() const { assert(is_register(), "type check"); return check_value_mask(virtual_mask, virtual_mask); }
duke@435	388	bool is_oop_register() const { assert(is_register() || is_stack(), "type check"); return type_field_valid() == object_type; }
duke@435	389	BasicType type_register() const { assert(is_register() || is_stack(), "type check"); return as_BasicType(type_field_valid()); }
duke@435	390
duke@435	391	bool is_last_use() const { assert(is_register(), "only works for registers"); return (value() & last_use_mask) != 0; }
duke@435	392	bool is_fpu_stack_offset() const { assert(is_register(), "only works for registers"); return (value() & is_fpu_stack_offset_mask) != 0; }
duke@435	393	LIR_Opr make_last_use() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | last_use_mask); }
duke@435	394	LIR_Opr make_fpu_stack_offset() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | is_fpu_stack_offset_mask); }
duke@435	395
duke@435	396
duke@435	397	int single_stack_ix() const { assert(is_single_stack() && !is_virtual(), "type check"); return (int)data(); }
duke@435	398	int double_stack_ix() const { assert(is_double_stack() && !is_virtual(), "type check"); return (int)data(); }
duke@435	399	RegNr cpu_regnr() const { assert(is_single_cpu() && !is_virtual(), "type check"); return (RegNr)data(); }
duke@435	400	RegNr cpu_regnrLo() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
duke@435	401	RegNr cpu_regnrHi() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
duke@435	402	RegNr fpu_regnr() const { assert(is_single_fpu() && !is_virtual(), "type check"); return (RegNr)data(); }
duke@435	403	RegNr fpu_regnrLo() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
duke@435	404	RegNr fpu_regnrHi() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
duke@435	405	RegNr xmm_regnr() const { assert(is_single_xmm() && !is_virtual(), "type check"); return (RegNr)data(); }
duke@435	406	RegNr xmm_regnrLo() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
duke@435	407	RegNr xmm_regnrHi() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
duke@435	408	int vreg_number() const { assert(is_virtual(), "type check"); return (RegNr)data(); }
duke@435	409
duke@435	410	LIR_OprPtr* pointer() const { assert(is_pointer(), "type check"); return (LIR_OprPtr*)this; }
duke@435	411	LIR_Const* as_constant_ptr() const { return pointer()->as_constant(); }
duke@435	412	LIR_Address* as_address_ptr() const { return pointer()->as_address(); }
duke@435	413
duke@435	414	Register as_register() const;
duke@435	415	Register as_register_lo() const;
duke@435	416	Register as_register_hi() const;
duke@435	417
duke@435	418	Register as_pointer_register() {
duke@435	419	#ifdef _LP64
duke@435	420	if (is_double_cpu()) {
duke@435	421	assert(as_register_lo() == as_register_hi(), "should be a single register");
duke@435	422	return as_register_lo();
duke@435	423	}
duke@435	424	#endif
duke@435	425	return as_register();
duke@435	426	}
duke@435	427
never@739	428	#ifdef X86
duke@435	429	XMMRegister as_xmm_float_reg() const;
duke@435	430	XMMRegister as_xmm_double_reg() const;
duke@435	431	// for compatibility with RInfo
duke@435	432	int fpu () const { return lo_reg_half(); }
never@739	433	#endif // X86
duke@435	434
duke@435	435	#ifdef SPARC
duke@435	436	FloatRegister as_float_reg () const;
duke@435	437	FloatRegister as_double_reg () const;
duke@435	438	#endif
duke@435	439
duke@435	440	jint as_jint() const { return as_constant_ptr()->as_jint(); }
duke@435	441	jlong as_jlong() const { return as_constant_ptr()->as_jlong(); }
duke@435	442	jfloat as_jfloat() const { return as_constant_ptr()->as_jfloat(); }
duke@435	443	jdouble as_jdouble() const { return as_constant_ptr()->as_jdouble(); }
duke@435	444	jobject as_jobject() const { return as_constant_ptr()->as_jobject(); }
duke@435	445
duke@435	446	void print() const PRODUCT_RETURN;
duke@435	447	void print(outputStream* out) const PRODUCT_RETURN;
duke@435	448	};
duke@435	449
duke@435	450
duke@435	451	inline LIR_OprDesc::OprType as_OprType(BasicType type) {
duke@435	452	switch (type) {
duke@435	453	case T_INT: return LIR_OprDesc::int_type;
duke@435	454	case T_LONG: return LIR_OprDesc::long_type;
duke@435	455	case T_FLOAT: return LIR_OprDesc::float_type;
duke@435	456	case T_DOUBLE: return LIR_OprDesc::double_type;
duke@435	457	case T_OBJECT:
duke@435	458	case T_ARRAY: return LIR_OprDesc::object_type;
duke@435	459	case T_ILLEGAL: // fall through
duke@435	460	default: ShouldNotReachHere(); return LIR_OprDesc::unknown_type;
duke@435	461	}
duke@435	462	}
duke@435	463
duke@435	464	inline BasicType as_BasicType(LIR_OprDesc::OprType t) {
duke@435	465	switch (t) {
duke@435	466	case LIR_OprDesc::int_type: return T_INT;
duke@435	467	case LIR_OprDesc::long_type: return T_LONG;
duke@435	468	case LIR_OprDesc::float_type: return T_FLOAT;
duke@435	469	case LIR_OprDesc::double_type: return T_DOUBLE;
duke@435	470	case LIR_OprDesc::object_type: return T_OBJECT;
duke@435	471	case LIR_OprDesc::unknown_type: // fall through
duke@435	472	default: ShouldNotReachHere(); return T_ILLEGAL;
duke@435	473	}
duke@435	474	}
duke@435	475
duke@435	476
duke@435	477	// LIR_Address
duke@435	478	class LIR_Address: public LIR_OprPtr {
duke@435	479	friend class LIR_OpVisitState;
duke@435	480
duke@435	481	public:
duke@435	482	// NOTE: currently these must be the log2 of the scale factor (and
duke@435	483	// must also be equivalent to the ScaleFactor enum in
duke@435	484	// assembler_i486.hpp)
duke@435	485	enum Scale {
duke@435	486	times_1 = 0,
duke@435	487	times_2 = 1,
duke@435	488	times_4 = 2,
duke@435	489	times_8 = 3
duke@435	490	};
duke@435	491
duke@435	492	private:
duke@435	493	LIR_Opr _base;
duke@435	494	LIR_Opr _index;
duke@435	495	Scale _scale;
duke@435	496	intx _disp;
duke@435	497	BasicType _type;
duke@435	498
duke@435	499	public:
duke@435	500	LIR_Address(LIR_Opr base, LIR_Opr index, BasicType type):
duke@435	501	_base(base)
duke@435	502	, _index(index)
duke@435	503	, _scale(times_1)
duke@435	504	, _type(type)
duke@435	505	, _disp(0) { verify(); }
duke@435	506
duke@435	507	LIR_Address(LIR_Opr base, int disp, BasicType type):
duke@435	508	_base(base)
duke@435	509	, _index(LIR_OprDesc::illegalOpr())
duke@435	510	, _scale(times_1)
duke@435	511	, _type(type)
duke@435	512	, _disp(disp) { verify(); }
duke@435	513
never@739	514	#ifdef X86
duke@435	515	LIR_Address(LIR_Opr base, LIR_Opr index, Scale scale, int disp, BasicType type):
duke@435	516	_base(base)
duke@435	517	, _index(index)
duke@435	518	, _scale(scale)
duke@435	519	, _type(type)
duke@435	520	, _disp(disp) { verify(); }
never@739	521	#endif // X86
duke@435	522
duke@435	523	LIR_Opr base() const { return _base; }
duke@435	524	LIR_Opr index() const { return _index; }
duke@435	525	Scale scale() const { return _scale; }
duke@435	526	intx disp() const { return _disp; }
duke@435	527
duke@435	528	bool equals(LIR_Address* other) const { return base() == other->base() && index() == other->index() && disp() == other->disp() && scale() == other->scale(); }
duke@435	529
duke@435	530	virtual LIR_Address* as_address() { return this; }
duke@435	531	virtual BasicType type() const { return _type; }
duke@435	532	virtual void print_value_on(outputStream* out) const PRODUCT_RETURN;
duke@435	533
duke@435	534	void verify() const PRODUCT_RETURN;
duke@435	535
duke@435	536	static Scale scale(BasicType type);
duke@435	537	};
duke@435	538
duke@435	539
duke@435	540	// operand factory
duke@435	541	class LIR_OprFact: public AllStatic {
duke@435	542	public:
duke@435	543
duke@435	544	static LIR_Opr illegalOpr;
duke@435	545
never@739	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); }
never@739	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); }
never@739	548	static LIR_Opr double_cpu(int reg1, int reg2) {
never@739	549	LP64_ONLY(assert(reg1 == reg2, "must be identical"));
never@739	550	return (LIR_Opr)(intptr_t)((reg1 << LIR_OprDesc::reg1_shift) |
never@739	551	(reg2 << LIR_OprDesc::reg2_shift) |
never@739	552	LIR_OprDesc::long_type |
never@739	553	LIR_OprDesc::cpu_register |
never@739	554	LIR_OprDesc::double_size);
never@739	555	}
duke@435	556
never@739	557	static LIR_Opr single_fpu(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
never@739	558	LIR_OprDesc::float_type |
never@739	559	LIR_OprDesc::fpu_register |
never@739	560	LIR_OprDesc::single_size); }
duke@435	561
duke@435	562	#ifdef SPARC
never@739	563	static LIR_Opr double_fpu(int reg1, int reg2) { return (LIR_Opr)(intptr_t)((reg1 << LIR_OprDesc::reg1_shift) |
never@739	564	(reg2 << LIR_OprDesc::reg2_shift) |
never@739	565	LIR_OprDesc::double_type |
never@739	566	LIR_OprDesc::fpu_register |
never@739	567	LIR_OprDesc::double_size); }
duke@435	568	#endif
never@739	569	#ifdef X86
never@739	570	static LIR_Opr double_fpu(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
never@739	571	(reg << LIR_OprDesc::reg2_shift) |
never@739	572	LIR_OprDesc::double_type |
never@739	573	LIR_OprDesc::fpu_register |
never@739	574	LIR_OprDesc::double_size); }
never@739	575
never@739	576	static LIR_Opr single_xmm(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
never@739	577	LIR_OprDesc::float_type |
never@739	578	LIR_OprDesc::fpu_register |
never@739	579	LIR_OprDesc::single_size |
never@739	580	LIR_OprDesc::is_xmm_mask); }
never@739	581	static LIR_Opr double_xmm(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
never@739	582	(reg << LIR_OprDesc::reg2_shift) |
never@739	583	LIR_OprDesc::double_type |
never@739	584	LIR_OprDesc::fpu_register |
never@739	585	LIR_OprDesc::double_size |
never@739	586	LIR_OprDesc::is_xmm_mask); }
never@739	587	#endif // X86
duke@435	588
duke@435	589
duke@435	590	static LIR_Opr virtual_register(int index, BasicType type) {
duke@435	591	LIR_Opr res;
duke@435	592	switch (type) {
duke@435	593	case T_OBJECT: // fall through
never@739	594	case T_ARRAY:
never@739	595	res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
never@739	596	LIR_OprDesc::object_type |
never@739	597	LIR_OprDesc::cpu_register |
never@739	598	LIR_OprDesc::single_size |
never@739	599	LIR_OprDesc::virtual_mask);
never@739	600	break;
never@739	601
never@739	602	case T_INT:
never@739	603	res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
never@739	604	LIR_OprDesc::int_type |
never@739	605	LIR_OprDesc::cpu_register |
never@739	606	LIR_OprDesc::single_size |
never@739	607	LIR_OprDesc::virtual_mask);
never@739	608	break;
never@739	609
never@739	610	case T_LONG:
never@739	611	res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
never@739	612	LIR_OprDesc::long_type |
never@739	613	LIR_OprDesc::cpu_register |
never@739	614	LIR_OprDesc::double_size |
never@739	615	LIR_OprDesc::virtual_mask);
never@739	616	break;
never@739	617
never@739	618	case T_FLOAT:
never@739	619	res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
never@739	620	LIR_OprDesc::float_type |
never@739	621	LIR_OprDesc::fpu_register |
never@739	622	LIR_OprDesc::single_size |
never@739	623	LIR_OprDesc::virtual_mask);
never@739	624	break;
never@739	625
never@739	626	case
never@739	627	T_DOUBLE: res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
never@739	628	LIR_OprDesc::double_type |
never@739	629	LIR_OprDesc::fpu_register |
never@739	630	LIR_OprDesc::double_size |
never@739	631	LIR_OprDesc::virtual_mask);
never@739	632	break;
duke@435	633
duke@435	634	default: ShouldNotReachHere(); res = illegalOpr;
duke@435	635	}
duke@435	636
duke@435	637	#ifdef ASSERT
duke@435	638	res->validate_type();
duke@435	639	assert(res->vreg_number() == index, "conversion check");
duke@435	640	assert(index >= LIR_OprDesc::vreg_base, "must start at vreg_base");
duke@435	641	assert(index <= (max_jint >> LIR_OprDesc::data_shift), "index is too big");
duke@435	642
duke@435	643	// old-style calculation; check if old and new method are equal
duke@435	644	LIR_OprDesc::OprType t = as_OprType(type);
never@739	645	LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | t |
never@739	646	((type == T_FLOAT || type == T_DOUBLE) ? LIR_OprDesc::fpu_register : LIR_OprDesc::cpu_register) |
duke@435	647	LIR_OprDesc::size_for(type) | LIR_OprDesc::virtual_mask);
duke@435	648	assert(res == old_res, "old and new method not equal");
duke@435	649	#endif
duke@435	650
duke@435	651	return res;
duke@435	652	}
duke@435	653
duke@435	654	// 'index' is computed by FrameMap::local_stack_pos(index); do not use other parameters as
duke@435	655	// the index is platform independent; a double stack useing indeces 2 and 3 has always
duke@435	656	// index 2.
duke@435	657	static LIR_Opr stack(int index, BasicType type) {
duke@435	658	LIR_Opr res;
duke@435	659	switch (type) {
duke@435	660	case T_OBJECT: // fall through
never@739	661	case T_ARRAY:
never@739	662	res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
never@739	663	LIR_OprDesc::object_type |
never@739	664	LIR_OprDesc::stack_value |
never@739	665	LIR_OprDesc::single_size);
never@739	666	break;
never@739	667
never@739	668	case T_INT:
never@739	669	res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
never@739	670	LIR_OprDesc::int_type |
never@739	671	LIR_OprDesc::stack_value |
never@739	672	LIR_OprDesc::single_size);
never@739	673	break;
never@739	674
never@739	675	case T_LONG:
never@739	676	res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
never@739	677	LIR_OprDesc::long_type |
never@739	678	LIR_OprDesc::stack_value |
never@739	679	LIR_OprDesc::double_size);
never@739	680	break;
never@739	681
never@739	682	case T_FLOAT:
never@739	683	res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
never@739	684	LIR_OprDesc::float_type |
never@739	685	LIR_OprDesc::stack_value |
never@739	686	LIR_OprDesc::single_size);
never@739	687	break;
never@739	688	case T_DOUBLE:
never@739	689	res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
never@739	690	LIR_OprDesc::double_type |
never@739	691	LIR_OprDesc::stack_value |
never@739	692	LIR_OprDesc::double_size);
never@739	693	break;
duke@435	694
duke@435	695	default: ShouldNotReachHere(); res = illegalOpr;
duke@435	696	}
duke@435	697
duke@435	698	#ifdef ASSERT
duke@435	699	assert(index >= 0, "index must be positive");
duke@435	700	assert(index <= (max_jint >> LIR_OprDesc::data_shift), "index is too big");
duke@435	701
never@739	702	LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
never@739	703	LIR_OprDesc::stack_value |
never@739	704	as_OprType(type) |
never@739	705	LIR_OprDesc::size_for(type));
duke@435	706	assert(res == old_res, "old and new method not equal");
duke@435	707	#endif
duke@435	708
duke@435	709	return res;
duke@435	710	}
duke@435	711
duke@435	712	static LIR_Opr intConst(jint i) { return (LIR_Opr)(new LIR_Const(i)); }
duke@435	713	static LIR_Opr longConst(jlong l) { return (LIR_Opr)(new LIR_Const(l)); }
duke@435	714	static LIR_Opr floatConst(jfloat f) { return (LIR_Opr)(new LIR_Const(f)); }
duke@435	715	static LIR_Opr doubleConst(jdouble d) { return (LIR_Opr)(new LIR_Const(d)); }
duke@435	716	static LIR_Opr oopConst(jobject o) { return (LIR_Opr)(new LIR_Const(o)); }
duke@435	717	static LIR_Opr address(LIR_Address* a) { return (LIR_Opr)a; }
duke@435	718	static LIR_Opr intptrConst(void* p) { return (LIR_Opr)(new LIR_Const(p)); }
duke@435	719	static LIR_Opr intptrConst(intptr_t v) { return (LIR_Opr)(new LIR_Const((void*)v)); }
duke@435	720	static LIR_Opr illegal() { return (LIR_Opr)-1; }
duke@435	721
duke@435	722	static LIR_Opr value_type(ValueType* type);
duke@435	723	static LIR_Opr dummy_value_type(ValueType* type);
duke@435	724	};
duke@435	725
duke@435	726
duke@435	727	//-------------------------------------------------------------------------------
duke@435	728	// LIR Instructions
duke@435	729	//-------------------------------------------------------------------------------
duke@435	730	//
duke@435	731	// Note:
duke@435	732	// - every instruction has a result operand
duke@435	733	// - every instruction has an CodeEmitInfo operand (can be revisited later)
duke@435	734	// - every instruction has a LIR_OpCode operand
duke@435	735	// - LIR_OpN, means an instruction that has N input operands
duke@435	736	//
duke@435	737	// class hierarchy:
duke@435	738	//
duke@435	739	class LIR_Op;
duke@435	740	class LIR_Op0;
duke@435	741	class LIR_OpLabel;
duke@435	742	class LIR_Op1;
duke@435	743	class LIR_OpBranch;
duke@435	744	class LIR_OpConvert;
duke@435	745	class LIR_OpAllocObj;
duke@435	746	class LIR_OpRoundFP;
duke@435	747	class LIR_Op2;
duke@435	748	class LIR_OpDelay;
duke@435	749	class LIR_Op3;
duke@435	750	class LIR_OpAllocArray;
duke@435	751	class LIR_OpCall;
duke@435	752	class LIR_OpJavaCall;
duke@435	753	class LIR_OpRTCall;
duke@435	754	class LIR_OpArrayCopy;
duke@435	755	class LIR_OpLock;
duke@435	756	class LIR_OpTypeCheck;
duke@435	757	class LIR_OpCompareAndSwap;
duke@435	758	class LIR_OpProfileCall;
duke@435	759
duke@435	760
duke@435	761	// LIR operation codes
duke@435	762	enum LIR_Code {
duke@435	763	lir_none
duke@435	764	, begin_op0
duke@435	765	, lir_word_align
duke@435	766	, lir_label
duke@435	767	, lir_nop
duke@435	768	, lir_backwardbranch_target
duke@435	769	, lir_std_entry
duke@435	770	, lir_osr_entry
duke@435	771	, lir_build_frame
duke@435	772	, lir_fpop_raw
duke@435	773	, lir_24bit_FPU
duke@435	774	, lir_reset_FPU
duke@435	775	, lir_breakpoint
duke@435	776	, lir_rtcall
duke@435	777	, lir_membar
duke@435	778	, lir_membar_acquire
duke@435	779	, lir_membar_release
duke@435	780	, lir_get_thread
duke@435	781	, end_op0
duke@435	782	, begin_op1
duke@435	783	, lir_fxch
duke@435	784	, lir_fld
duke@435	785	, lir_ffree
duke@435	786	, lir_push
duke@435	787	, lir_pop
duke@435	788	, lir_null_check
duke@435	789	, lir_return
duke@435	790	, lir_leal
duke@435	791	, lir_neg
duke@435	792	, lir_branch
duke@435	793	, lir_cond_float_branch
duke@435	794	, lir_move
duke@435	795	, lir_prefetchr
duke@435	796	, lir_prefetchw
duke@435	797	, lir_convert
duke@435	798	, lir_alloc_object
duke@435	799	, lir_monaddr
duke@435	800	, lir_roundfp
duke@435	801	, lir_safepoint
duke@435	802	, end_op1
duke@435	803	, begin_op2
duke@435	804	, lir_cmp
duke@435	805	, lir_cmp_l2i
duke@435	806	, lir_ucmp_fd2i
duke@435	807	, lir_cmp_fd2i
duke@435	808	, lir_cmove
duke@435	809	, lir_add
duke@435	810	, lir_sub
duke@435	811	, lir_mul
duke@435	812	, lir_mul_strictfp
duke@435	813	, lir_div
duke@435	814	, lir_div_strictfp
duke@435	815	, lir_rem
duke@435	816	, lir_sqrt
duke@435	817	, lir_abs
duke@435	818	, lir_sin
duke@435	819	, lir_cos
duke@435	820	, lir_tan
duke@435	821	, lir_log
duke@435	822	, lir_log10
duke@435	823	, lir_logic_and
duke@435	824	, lir_logic_or
duke@435	825	, lir_logic_xor
duke@435	826	, lir_shl
duke@435	827	, lir_shr
duke@435	828	, lir_ushr
duke@435	829	, lir_alloc_array
duke@435	830	, lir_throw
duke@435	831	, lir_unwind
duke@435	832	, lir_compare_to
duke@435	833	, end_op2
duke@435	834	, begin_op3
duke@435	835	, lir_idiv
duke@435	836	, lir_irem
duke@435	837	, end_op3
duke@435	838	, begin_opJavaCall
duke@435	839	, lir_static_call
duke@435	840	, lir_optvirtual_call
duke@435	841	, lir_icvirtual_call
duke@435	842	, lir_virtual_call
duke@435	843	, end_opJavaCall
duke@435	844	, begin_opArrayCopy
duke@435	845	, lir_arraycopy
duke@435	846	, end_opArrayCopy
duke@435	847	, begin_opLock
duke@435	848	, lir_lock
duke@435	849	, lir_unlock
duke@435	850	, end_opLock
duke@435	851	, begin_delay_slot
duke@435	852	, lir_delay_slot
duke@435	853	, end_delay_slot
duke@435	854	, begin_opTypeCheck
duke@435	855	, lir_instanceof
duke@435	856	, lir_checkcast
duke@435	857	, lir_store_check
duke@435	858	, end_opTypeCheck
duke@435	859	, begin_opCompareAndSwap
duke@435	860	, lir_cas_long
duke@435	861	, lir_cas_obj
duke@435	862	, lir_cas_int
duke@435	863	, end_opCompareAndSwap
duke@435	864	, begin_opMDOProfile
duke@435	865	, lir_profile_call
duke@435	866	, end_opMDOProfile
duke@435	867	};
duke@435	868
duke@435	869
duke@435	870	enum LIR_Condition {
duke@435	871	lir_cond_equal
duke@435	872	, lir_cond_notEqual
duke@435	873	, lir_cond_less
duke@435	874	, lir_cond_lessEqual
duke@435	875	, lir_cond_greaterEqual
duke@435	876	, lir_cond_greater
duke@435	877	, lir_cond_belowEqual
duke@435	878	, lir_cond_aboveEqual
duke@435	879	, lir_cond_always
duke@435	880	, lir_cond_unknown = -1
duke@435	881	};
duke@435	882
duke@435	883
duke@435	884	enum LIR_PatchCode {
duke@435	885	lir_patch_none,
duke@435	886	lir_patch_low,
duke@435	887	lir_patch_high,
duke@435	888	lir_patch_normal
duke@435	889	};
duke@435	890
duke@435	891
duke@435	892	enum LIR_MoveKind {
duke@435	893	lir_move_normal,
duke@435	894	lir_move_volatile,
duke@435	895	lir_move_unaligned,
duke@435	896	lir_move_max_flag
duke@435	897	};
duke@435	898
duke@435	899
duke@435	900	// --------------------------------------------------
duke@435	901	// LIR_Op
duke@435	902	// --------------------------------------------------
duke@435	903	class LIR_Op: public CompilationResourceObj {
duke@435	904	friend class LIR_OpVisitState;
duke@435	905
duke@435	906	#ifdef ASSERT
duke@435	907	private:
duke@435	908	const char * _file;
duke@435	909	int _line;
duke@435	910	#endif
duke@435	911
duke@435	912	protected:
duke@435	913	LIR_Opr _result;
duke@435	914	unsigned short _code;
duke@435	915	unsigned short _flags;
duke@435	916	CodeEmitInfo* _info;
duke@435	917	int _id; // value id for register allocation
duke@435	918	int _fpu_pop_count;
duke@435	919	Instruction* _source; // for debugging
duke@435	920
duke@435	921	static void print_condition(outputStream* out, LIR_Condition cond) PRODUCT_RETURN;
duke@435	922
duke@435	923	protected:
duke@435	924	static bool is_in_range(LIR_Code test, LIR_Code start, LIR_Code end) { return start < test && test < end; }
duke@435	925
duke@435	926	public:
duke@435	927	LIR_Op()
duke@435	928	: _result(LIR_OprFact::illegalOpr)
duke@435	929	, _code(lir_none)
duke@435	930	, _flags(0)
duke@435	931	, _info(NULL)
duke@435	932	#ifdef ASSERT
duke@435	933	, _file(NULL)
duke@435	934	, _line(0)
duke@435	935	#endif
duke@435	936	, _fpu_pop_count(0)
duke@435	937	, _source(NULL)
duke@435	938	, _id(-1) {}
duke@435	939
duke@435	940	LIR_Op(LIR_Code code, LIR_Opr result, CodeEmitInfo* info)
duke@435	941	: _result(result)
duke@435	942	, _code(code)
duke@435	943	, _flags(0)
duke@435	944	, _info(info)
duke@435	945	#ifdef ASSERT
duke@435	946	, _file(NULL)
duke@435	947	, _line(0)
duke@435	948	#endif
duke@435	949	, _fpu_pop_count(0)
duke@435	950	, _source(NULL)
duke@435	951	, _id(-1) {}
duke@435	952
duke@435	953	CodeEmitInfo* info() const { return _info; }
duke@435	954	LIR_Code code() const { return (LIR_Code)_code; }
duke@435	955	LIR_Opr result_opr() const { return _result; }
duke@435	956	void set_result_opr(LIR_Opr opr) { _result = opr; }
duke@435	957
duke@435	958	#ifdef ASSERT
duke@435	959	void set_file_and_line(const char * file, int line) {
duke@435	960	_file = file;
duke@435	961	_line = line;
duke@435	962	}
duke@435	963	#endif
duke@435	964
duke@435	965	virtual const char * name() const PRODUCT_RETURN0;
duke@435	966
duke@435	967	int id() const { return _id; }
duke@435	968	void set_id(int id) { _id = id; }
duke@435	969
duke@435	970	// FPU stack simulation helpers -- only used on Intel
duke@435	971	void set_fpu_pop_count(int count) { assert(count >= 0 && count <= 1, "currently only 0 and 1 are valid"); _fpu_pop_count = count; }
duke@435	972	int fpu_pop_count() const { return _fpu_pop_count; }
duke@435	973	bool pop_fpu_stack() { return _fpu_pop_count > 0; }
duke@435	974
duke@435	975	Instruction* source() const { return _source; }
duke@435	976	void set_source(Instruction* ins) { _source = ins; }
duke@435	977
duke@435	978	virtual void emit_code(LIR_Assembler* masm) = 0;
duke@435	979	virtual void print_instr(outputStream* out) const = 0;
duke@435	980	virtual void print_on(outputStream* st) const PRODUCT_RETURN;
duke@435	981
duke@435	982	virtual LIR_OpCall* as_OpCall() { return NULL; }
duke@435	983	virtual LIR_OpJavaCall* as_OpJavaCall() { return NULL; }
duke@435	984	virtual LIR_OpLabel* as_OpLabel() { return NULL; }
duke@435	985	virtual LIR_OpDelay* as_OpDelay() { return NULL; }
duke@435	986	virtual LIR_OpLock* as_OpLock() { return NULL; }
duke@435	987	virtual LIR_OpAllocArray* as_OpAllocArray() { return NULL; }
duke@435	988	virtual LIR_OpAllocObj* as_OpAllocObj() { return NULL; }
duke@435	989	virtual LIR_OpRoundFP* as_OpRoundFP() { return NULL; }
duke@435	990	virtual LIR_OpBranch* as_OpBranch() { return NULL; }
duke@435	991	virtual LIR_OpRTCall* as_OpRTCall() { return NULL; }
duke@435	992	virtual LIR_OpConvert* as_OpConvert() { return NULL; }
duke@435	993	virtual LIR_Op0* as_Op0() { return NULL; }
duke@435	994	virtual LIR_Op1* as_Op1() { return NULL; }
duke@435	995	virtual LIR_Op2* as_Op2() { return NULL; }
duke@435	996	virtual LIR_Op3* as_Op3() { return NULL; }
duke@435	997	virtual LIR_OpArrayCopy* as_OpArrayCopy() { return NULL; }
duke@435	998	virtual LIR_OpTypeCheck* as_OpTypeCheck() { return NULL; }
duke@435	999	virtual LIR_OpCompareAndSwap* as_OpCompareAndSwap() { return NULL; }
duke@435	1000	virtual LIR_OpProfileCall* as_OpProfileCall() { return NULL; }
duke@435	1001
duke@435	1002	virtual void verify() const {}
duke@435	1003	};
duke@435	1004
duke@435	1005	// for calls
duke@435	1006	class LIR_OpCall: public LIR_Op {
duke@435	1007	friend class LIR_OpVisitState;
duke@435	1008
duke@435	1009	protected:
duke@435	1010	address _addr;
duke@435	1011	LIR_OprList* _arguments;
duke@435	1012	protected:
duke@435	1013	LIR_OpCall(LIR_Code code, address addr, LIR_Opr result,
duke@435	1014	LIR_OprList* arguments, CodeEmitInfo* info = NULL)
duke@435	1015	: LIR_Op(code, result, info)
duke@435	1016	, _arguments(arguments)
duke@435	1017	, _addr(addr) {}
duke@435	1018
duke@435	1019	public:
duke@435	1020	address addr() const { return _addr; }
duke@435	1021	const LIR_OprList* arguments() const { return _arguments; }
duke@435	1022	virtual LIR_OpCall* as_OpCall() { return this; }
duke@435	1023	};
duke@435	1024
duke@435	1025
duke@435	1026	// --------------------------------------------------
duke@435	1027	// LIR_OpJavaCall
duke@435	1028	// --------------------------------------------------
duke@435	1029	class LIR_OpJavaCall: public LIR_OpCall {
duke@435	1030	friend class LIR_OpVisitState;
duke@435	1031
duke@435	1032	private:
duke@435	1033	ciMethod* _method;
duke@435	1034	LIR_Opr _receiver;
duke@435	1035
duke@435	1036	public:
duke@435	1037	LIR_OpJavaCall(LIR_Code code, ciMethod* method,
duke@435	1038	LIR_Opr receiver, LIR_Opr result,
duke@435	1039	address addr, LIR_OprList* arguments,
duke@435	1040	CodeEmitInfo* info)
duke@435	1041	: LIR_OpCall(code, addr, result, arguments, info)
duke@435	1042	, _receiver(receiver)
duke@435	1043	, _method(method) { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); }
duke@435	1044
duke@435	1045	LIR_OpJavaCall(LIR_Code code, ciMethod* method,
duke@435	1046	LIR_Opr receiver, LIR_Opr result, intptr_t vtable_offset,
duke@435	1047	LIR_OprList* arguments, CodeEmitInfo* info)
duke@435	1048	: LIR_OpCall(code, (address)vtable_offset, result, arguments, info)
duke@435	1049	, _receiver(receiver)
duke@435	1050	, _method(method) { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); }
duke@435	1051
duke@435	1052	LIR_Opr receiver() const { return _receiver; }
duke@435	1053	ciMethod* method() const { return _method; }
duke@435	1054
duke@435	1055	intptr_t vtable_offset() const {
duke@435	1056	assert(_code == lir_virtual_call, "only have vtable for real vcall");
duke@435	1057	return (intptr_t) addr();
duke@435	1058	}
duke@435	1059
duke@435	1060	virtual void emit_code(LIR_Assembler* masm);
duke@435	1061	virtual LIR_OpJavaCall* as_OpJavaCall() { return this; }
duke@435	1062	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1063	};
duke@435	1064
duke@435	1065	// --------------------------------------------------
duke@435	1066	// LIR_OpLabel
duke@435	1067	// --------------------------------------------------
duke@435	1068	// Location where a branch can continue
duke@435	1069	class LIR_OpLabel: public LIR_Op {
duke@435	1070	friend class LIR_OpVisitState;
duke@435	1071
duke@435	1072	private:
duke@435	1073	Label* _label;
duke@435	1074	public:
duke@435	1075	LIR_OpLabel(Label* lbl)
duke@435	1076	: LIR_Op(lir_label, LIR_OprFact::illegalOpr, NULL)
duke@435	1077	, _label(lbl) {}
duke@435	1078	Label* label() const { return _label; }
duke@435	1079
duke@435	1080	virtual void emit_code(LIR_Assembler* masm);
duke@435	1081	virtual LIR_OpLabel* as_OpLabel() { return this; }
duke@435	1082	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1083	};
duke@435	1084
duke@435	1085	// LIR_OpArrayCopy
duke@435	1086	class LIR_OpArrayCopy: public LIR_Op {
duke@435	1087	friend class LIR_OpVisitState;
duke@435	1088
duke@435	1089	private:
duke@435	1090	ArrayCopyStub* _stub;
duke@435	1091	LIR_Opr _src;
duke@435	1092	LIR_Opr _src_pos;
duke@435	1093	LIR_Opr _dst;
duke@435	1094	LIR_Opr _dst_pos;
duke@435	1095	LIR_Opr _length;
duke@435	1096	LIR_Opr _tmp;
duke@435	1097	ciArrayKlass* _expected_type;
duke@435	1098	int _flags;
duke@435	1099
duke@435	1100	public:
duke@435	1101	enum Flags {
duke@435	1102	src_null_check = 1 << 0,
duke@435	1103	dst_null_check = 1 << 1,
duke@435	1104	src_pos_positive_check = 1 << 2,
duke@435	1105	dst_pos_positive_check = 1 << 3,
duke@435	1106	length_positive_check = 1 << 4,
duke@435	1107	src_range_check = 1 << 5,
duke@435	1108	dst_range_check = 1 << 6,
duke@435	1109	type_check = 1 << 7,
duke@435	1110	all_flags = (1 << 8) - 1
duke@435	1111	};
duke@435	1112
duke@435	1113	LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length, LIR_Opr tmp,
duke@435	1114	ciArrayKlass* expected_type, int flags, CodeEmitInfo* info);
duke@435	1115
duke@435	1116	LIR_Opr src() const { return _src; }
duke@435	1117	LIR_Opr src_pos() const { return _src_pos; }
duke@435	1118	LIR_Opr dst() const { return _dst; }
duke@435	1119	LIR_Opr dst_pos() const { return _dst_pos; }
duke@435	1120	LIR_Opr length() const { return _length; }
duke@435	1121	LIR_Opr tmp() const { return _tmp; }
duke@435	1122	int flags() const { return _flags; }
duke@435	1123	ciArrayKlass* expected_type() const { return _expected_type; }
duke@435	1124	ArrayCopyStub* stub() const { return _stub; }
duke@435	1125
duke@435	1126	virtual void emit_code(LIR_Assembler* masm);
duke@435	1127	virtual LIR_OpArrayCopy* as_OpArrayCopy() { return this; }
duke@435	1128	void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1129	};
duke@435	1130
duke@435	1131
duke@435	1132	// --------------------------------------------------
duke@435	1133	// LIR_Op0
duke@435	1134	// --------------------------------------------------
duke@435	1135	class LIR_Op0: public LIR_Op {
duke@435	1136	friend class LIR_OpVisitState;
duke@435	1137
duke@435	1138	public:
duke@435	1139	LIR_Op0(LIR_Code code)
duke@435	1140	: LIR_Op(code, LIR_OprFact::illegalOpr, NULL) { assert(is_in_range(code, begin_op0, end_op0), "code check"); }
duke@435	1141	LIR_Op0(LIR_Code code, LIR_Opr result, CodeEmitInfo* info = NULL)
duke@435	1142	: LIR_Op(code, result, info) { assert(is_in_range(code, begin_op0, end_op0), "code check"); }
duke@435	1143
duke@435	1144	virtual void emit_code(LIR_Assembler* masm);
duke@435	1145	virtual LIR_Op0* as_Op0() { return this; }
duke@435	1146	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1147	};
duke@435	1148
duke@435	1149
duke@435	1150	// --------------------------------------------------
duke@435	1151	// LIR_Op1
duke@435	1152	// --------------------------------------------------
duke@435	1153
duke@435	1154	class LIR_Op1: public LIR_Op {
duke@435	1155	friend class LIR_OpVisitState;
duke@435	1156
duke@435	1157	protected:
duke@435	1158	LIR_Opr _opr; // input operand
duke@435	1159	BasicType _type; // Operand types
duke@435	1160	LIR_PatchCode _patch; // only required with patchin (NEEDS_CLEANUP: do we want a special instruction for patching?)
duke@435	1161
duke@435	1162	static void print_patch_code(outputStream* out, LIR_PatchCode code);
duke@435	1163
duke@435	1164	void set_kind(LIR_MoveKind kind) {
duke@435	1165	assert(code() == lir_move, "must be");
duke@435	1166	_flags = kind;
duke@435	1167	}
duke@435	1168
duke@435	1169	public:
duke@435	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)
duke@435	1171	: LIR_Op(code, result, info)
duke@435	1172	, _opr(opr)
duke@435	1173	, _patch(patch)
duke@435	1174	, _type(type) { assert(is_in_range(code, begin_op1, end_op1), "code check"); }
duke@435	1175
duke@435	1176	LIR_Op1(LIR_Code code, LIR_Opr opr, LIR_Opr result, BasicType type, LIR_PatchCode patch, CodeEmitInfo* info, LIR_MoveKind kind)
duke@435	1177	: LIR_Op(code, result, info)
duke@435	1178	, _opr(opr)
duke@435	1179	, _patch(patch)
duke@435	1180	, _type(type) {
duke@435	1181	assert(code == lir_move, "must be");
duke@435	1182	set_kind(kind);
duke@435	1183	}
duke@435	1184
duke@435	1185	LIR_Op1(LIR_Code code, LIR_Opr opr, CodeEmitInfo* info)
duke@435	1186	: LIR_Op(code, LIR_OprFact::illegalOpr, info)
duke@435	1187	, _opr(opr)
duke@435	1188	, _patch(lir_patch_none)
duke@435	1189	, _type(T_ILLEGAL) { assert(is_in_range(code, begin_op1, end_op1), "code check"); }
duke@435	1190
duke@435	1191	LIR_Opr in_opr() const { return _opr; }
duke@435	1192	LIR_PatchCode patch_code() const { return _patch; }
duke@435	1193	BasicType type() const { return _type; }
duke@435	1194
duke@435	1195	LIR_MoveKind move_kind() const {
duke@435	1196	assert(code() == lir_move, "must be");
duke@435	1197	return (LIR_MoveKind)_flags;
duke@435	1198	}
duke@435	1199
duke@435	1200	virtual void emit_code(LIR_Assembler* masm);
duke@435	1201	virtual LIR_Op1* as_Op1() { return this; }
duke@435	1202	virtual const char * name() const PRODUCT_RETURN0;
duke@435	1203
duke@435	1204	void set_in_opr(LIR_Opr opr) { _opr = opr; }
duke@435	1205
duke@435	1206	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1207	virtual void verify() const;
duke@435	1208	};
duke@435	1209
duke@435	1210
duke@435	1211	// for runtime calls
duke@435	1212	class LIR_OpRTCall: public LIR_OpCall {
duke@435	1213	friend class LIR_OpVisitState;
duke@435	1214
duke@435	1215	private:
duke@435	1216	LIR_Opr _tmp;
duke@435	1217	public:
duke@435	1218	LIR_OpRTCall(address addr, LIR_Opr tmp,
duke@435	1219	LIR_Opr result, LIR_OprList* arguments, CodeEmitInfo* info = NULL)
duke@435	1220	: LIR_OpCall(lir_rtcall, addr, result, arguments, info)
duke@435	1221	, _tmp(tmp) {}
duke@435	1222
duke@435	1223	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1224	virtual void emit_code(LIR_Assembler* masm);
duke@435	1225	virtual LIR_OpRTCall* as_OpRTCall() { return this; }
duke@435	1226
duke@435	1227	LIR_Opr tmp() const { return _tmp; }
duke@435	1228
duke@435	1229	virtual void verify() const;
duke@435	1230	};
duke@435	1231
duke@435	1232
duke@435	1233	class LIR_OpBranch: public LIR_Op {
duke@435	1234	friend class LIR_OpVisitState;
duke@435	1235
duke@435	1236	private:
duke@435	1237	LIR_Condition _cond;
duke@435	1238	BasicType _type;
duke@435	1239	Label* _label;
duke@435	1240	BlockBegin* _block; // if this is a branch to a block, this is the block
duke@435	1241	BlockBegin* _ublock; // if this is a float-branch, this is the unorderd block
duke@435	1242	CodeStub* _stub; // if this is a branch to a stub, this is the stub
duke@435	1243
duke@435	1244	public:
duke@435	1245	LIR_OpBranch(LIR_Condition cond, Label* lbl)
duke@435	1246	: LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*) NULL)
duke@435	1247	, _cond(cond)
duke@435	1248	, _label(lbl)
duke@435	1249	, _block(NULL)
duke@435	1250	, _ublock(NULL)
duke@435	1251	, _stub(NULL) { }
duke@435	1252
duke@435	1253	LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block);
duke@435	1254	LIR_OpBranch(LIR_Condition cond, BasicType type, CodeStub* stub);
duke@435	1255
duke@435	1256	// for unordered comparisons
duke@435	1257	LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* ublock);
duke@435	1258
duke@435	1259	LIR_Condition cond() const { return _cond; }
duke@435	1260	BasicType type() const { return _type; }
duke@435	1261	Label* label() const { return _label; }
duke@435	1262	BlockBegin* block() const { return _block; }
duke@435	1263	BlockBegin* ublock() const { return _ublock; }
duke@435	1264	CodeStub* stub() const { return _stub; }
duke@435	1265
duke@435	1266	void change_block(BlockBegin* b);
duke@435	1267	void change_ublock(BlockBegin* b);
duke@435	1268	void negate_cond();
duke@435	1269
duke@435	1270	virtual void emit_code(LIR_Assembler* masm);
duke@435	1271	virtual LIR_OpBranch* as_OpBranch() { return this; }
duke@435	1272	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1273	};
duke@435	1274
duke@435	1275
duke@435	1276	class ConversionStub;
duke@435	1277
duke@435	1278	class LIR_OpConvert: public LIR_Op1 {
duke@435	1279	friend class LIR_OpVisitState;
duke@435	1280
duke@435	1281	private:
duke@435	1282	Bytecodes::Code _bytecode;
duke@435	1283	ConversionStub* _stub;
duke@435	1284
duke@435	1285	public:
duke@435	1286	LIR_OpConvert(Bytecodes::Code code, LIR_Opr opr, LIR_Opr result, ConversionStub* stub)
duke@435	1287	: LIR_Op1(lir_convert, opr, result)
duke@435	1288	, _stub(stub)
duke@435	1289	, _bytecode(code) {}
duke@435	1290
duke@435	1291	Bytecodes::Code bytecode() const { return _bytecode; }
duke@435	1292	ConversionStub* stub() const { return _stub; }
duke@435	1293
duke@435	1294	virtual void emit_code(LIR_Assembler* masm);
duke@435	1295	virtual LIR_OpConvert* as_OpConvert() { return this; }
duke@435	1296	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1297
duke@435	1298	static void print_bytecode(outputStream* out, Bytecodes::Code code) PRODUCT_RETURN;
duke@435	1299	};
duke@435	1300
duke@435	1301
duke@435	1302	// LIR_OpAllocObj
duke@435	1303	class LIR_OpAllocObj : public LIR_Op1 {
duke@435	1304	friend class LIR_OpVisitState;
duke@435	1305
duke@435	1306	private:
duke@435	1307	LIR_Opr _tmp1;
duke@435	1308	LIR_Opr _tmp2;
duke@435	1309	LIR_Opr _tmp3;
duke@435	1310	LIR_Opr _tmp4;
duke@435	1311	int _hdr_size;
duke@435	1312	int _obj_size;
duke@435	1313	CodeStub* _stub;
duke@435	1314	bool _init_check;
duke@435	1315
duke@435	1316	public:
duke@435	1317	LIR_OpAllocObj(LIR_Opr klass, LIR_Opr result,
duke@435	1318	LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
duke@435	1319	int hdr_size, int obj_size, bool init_check, CodeStub* stub)
duke@435	1320	: LIR_Op1(lir_alloc_object, klass, result)
duke@435	1321	, _tmp1(t1)
duke@435	1322	, _tmp2(t2)
duke@435	1323	, _tmp3(t3)
duke@435	1324	, _tmp4(t4)
duke@435	1325	, _hdr_size(hdr_size)
duke@435	1326	, _obj_size(obj_size)
duke@435	1327	, _init_check(init_check)
duke@435	1328	, _stub(stub) { }
duke@435	1329
duke@435	1330	LIR_Opr klass() const { return in_opr(); }
duke@435	1331	LIR_Opr obj() const { return result_opr(); }
duke@435	1332	LIR_Opr tmp1() const { return _tmp1; }
duke@435	1333	LIR_Opr tmp2() const { return _tmp2; }
duke@435	1334	LIR_Opr tmp3() const { return _tmp3; }
duke@435	1335	LIR_Opr tmp4() const { return _tmp4; }
duke@435	1336	int header_size() const { return _hdr_size; }
duke@435	1337	int object_size() const { return _obj_size; }
duke@435	1338	bool init_check() const { return _init_check; }
duke@435	1339	CodeStub* stub() const { return _stub; }
duke@435	1340
duke@435	1341	virtual void emit_code(LIR_Assembler* masm);
duke@435	1342	virtual LIR_OpAllocObj * as_OpAllocObj () { return this; }
duke@435	1343	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1344	};
duke@435	1345
duke@435	1346
duke@435	1347	// LIR_OpRoundFP
duke@435	1348	class LIR_OpRoundFP : public LIR_Op1 {
duke@435	1349	friend class LIR_OpVisitState;
duke@435	1350
duke@435	1351	private:
duke@435	1352	LIR_Opr _tmp;
duke@435	1353
duke@435	1354	public:
duke@435	1355	LIR_OpRoundFP(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result)
duke@435	1356	: LIR_Op1(lir_roundfp, reg, result)
duke@435	1357	, _tmp(stack_loc_temp) {}
duke@435	1358
duke@435	1359	LIR_Opr tmp() const { return _tmp; }
duke@435	1360	virtual LIR_OpRoundFP* as_OpRoundFP() { return this; }
duke@435	1361	void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1362	};
duke@435	1363
duke@435	1364	// LIR_OpTypeCheck
duke@435	1365	class LIR_OpTypeCheck: public LIR_Op {
duke@435	1366	friend class LIR_OpVisitState;
duke@435	1367
duke@435	1368	private:
duke@435	1369	LIR_Opr _object;
duke@435	1370	LIR_Opr _array;
duke@435	1371	ciKlass* _klass;
duke@435	1372	LIR_Opr _tmp1;
duke@435	1373	LIR_Opr _tmp2;
duke@435	1374	LIR_Opr _tmp3;
duke@435	1375	bool _fast_check;
duke@435	1376	CodeEmitInfo* _info_for_patch;
duke@435	1377	CodeEmitInfo* _info_for_exception;
duke@435	1378	CodeStub* _stub;
duke@435	1379	// Helpers for Tier1UpdateMethodData
duke@435	1380	ciMethod* _profiled_method;
duke@435	1381	int _profiled_bci;
duke@435	1382
duke@435	1383	public:
duke@435	1384	LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
duke@435	1385	LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
duke@435	1386	CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
duke@435	1387	ciMethod* profiled_method, int profiled_bci);
duke@435	1388	LIR_OpTypeCheck(LIR_Code code, LIR_Opr object, LIR_Opr array,
duke@435	1389	LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception,
duke@435	1390	ciMethod* profiled_method, int profiled_bci);
duke@435	1391
duke@435	1392	LIR_Opr object() const { return _object; }
duke@435	1393	LIR_Opr array() const { assert(code() == lir_store_check, "not valid"); return _array; }
duke@435	1394	LIR_Opr tmp1() const { return _tmp1; }
duke@435	1395	LIR_Opr tmp2() const { return _tmp2; }
duke@435	1396	LIR_Opr tmp3() const { return _tmp3; }
duke@435	1397	ciKlass* klass() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _klass; }
duke@435	1398	bool fast_check() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _fast_check; }
duke@435	1399	CodeEmitInfo* info_for_patch() const { return _info_for_patch; }
duke@435	1400	CodeEmitInfo* info_for_exception() const { return _info_for_exception; }
duke@435	1401	CodeStub* stub() const { return _stub; }
duke@435	1402
duke@435	1403	// methodDataOop profiling
duke@435	1404	ciMethod* profiled_method() { return _profiled_method; }
duke@435	1405	int profiled_bci() { return _profiled_bci; }
duke@435	1406
duke@435	1407	virtual void emit_code(LIR_Assembler* masm);
duke@435	1408	virtual LIR_OpTypeCheck* as_OpTypeCheck() { return this; }
duke@435	1409	void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1410	};
duke@435	1411
duke@435	1412	// LIR_Op2
duke@435	1413	class LIR_Op2: public LIR_Op {
duke@435	1414	friend class LIR_OpVisitState;
duke@435	1415
duke@435	1416	int _fpu_stack_size; // for sin/cos implementation on Intel
duke@435	1417
duke@435	1418	protected:
duke@435	1419	LIR_Opr _opr1;
duke@435	1420	LIR_Opr _opr2;
duke@435	1421	BasicType _type;
duke@435	1422	LIR_Opr _tmp;
duke@435	1423	LIR_Condition _condition;
duke@435	1424
duke@435	1425	void verify() const;
duke@435	1426
duke@435	1427	public:
duke@435	1428	LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, CodeEmitInfo* info = NULL)
duke@435	1429	: LIR_Op(code, LIR_OprFact::illegalOpr, info)
duke@435	1430	, _opr1(opr1)
duke@435	1431	, _opr2(opr2)
duke@435	1432	, _type(T_ILLEGAL)
duke@435	1433	, _condition(condition)
duke@435	1434	, _fpu_stack_size(0)
duke@435	1435	, _tmp(LIR_OprFact::illegalOpr) {
duke@435	1436	assert(code == lir_cmp, "code check");
duke@435	1437	}
duke@435	1438
duke@435	1439	LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result)
duke@435	1440	: LIR_Op(code, result, NULL)
duke@435	1441	, _opr1(opr1)
duke@435	1442	, _opr2(opr2)
duke@435	1443	, _type(T_ILLEGAL)
duke@435	1444	, _condition(condition)
duke@435	1445	, _fpu_stack_size(0)
duke@435	1446	, _tmp(LIR_OprFact::illegalOpr) {
duke@435	1447	assert(code == lir_cmove, "code check");
duke@435	1448	}
duke@435	1449
duke@435	1450	LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result = LIR_OprFact::illegalOpr,
duke@435	1451	CodeEmitInfo* info = NULL, BasicType type = T_ILLEGAL)
duke@435	1452	: LIR_Op(code, result, info)
duke@435	1453	, _opr1(opr1)
duke@435	1454	, _opr2(opr2)
duke@435	1455	, _type(type)
duke@435	1456	, _condition(lir_cond_unknown)
duke@435	1457	, _fpu_stack_size(0)
duke@435	1458	, _tmp(LIR_OprFact::illegalOpr) {
duke@435	1459	assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check");
duke@435	1460	}
duke@435	1461
duke@435	1462	LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, LIR_Opr tmp)
duke@435	1463	: LIR_Op(code, result, NULL)
duke@435	1464	, _opr1(opr1)
duke@435	1465	, _opr2(opr2)
duke@435	1466	, _type(T_ILLEGAL)
duke@435	1467	, _condition(lir_cond_unknown)
duke@435	1468	, _fpu_stack_size(0)
duke@435	1469	, _tmp(tmp) {
duke@435	1470	assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check");
duke@435	1471	}
duke@435	1472
duke@435	1473	LIR_Opr in_opr1() const { return _opr1; }
duke@435	1474	LIR_Opr in_opr2() const { return _opr2; }
duke@435	1475	BasicType type() const { return _type; }
duke@435	1476	LIR_Opr tmp_opr() const { return _tmp; }
duke@435	1477	LIR_Condition condition() const {
duke@435	1478	assert(code() == lir_cmp || code() == lir_cmove, "only valid for cmp and cmove"); return _condition;
duke@435	1479	}
duke@435	1480
duke@435	1481	void set_fpu_stack_size(int size) { _fpu_stack_size = size; }
duke@435	1482	int fpu_stack_size() const { return _fpu_stack_size; }
duke@435	1483
duke@435	1484	void set_in_opr1(LIR_Opr opr) { _opr1 = opr; }
duke@435	1485	void set_in_opr2(LIR_Opr opr) { _opr2 = opr; }
duke@435	1486
duke@435	1487	virtual void emit_code(LIR_Assembler* masm);
duke@435	1488	virtual LIR_Op2* as_Op2() { return this; }
duke@435	1489	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1490	};
duke@435	1491
duke@435	1492	class LIR_OpAllocArray : public LIR_Op {
duke@435	1493	friend class LIR_OpVisitState;
duke@435	1494
duke@435	1495	private:
duke@435	1496	LIR_Opr _klass;
duke@435	1497	LIR_Opr _len;
duke@435	1498	LIR_Opr _tmp1;
duke@435	1499	LIR_Opr _tmp2;
duke@435	1500	LIR_Opr _tmp3;
duke@435	1501	LIR_Opr _tmp4;
duke@435	1502	BasicType _type;
duke@435	1503	CodeStub* _stub;
duke@435	1504
duke@435	1505	public:
duke@435	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)
duke@435	1507	: LIR_Op(lir_alloc_array, result, NULL)
duke@435	1508	, _klass(klass)
duke@435	1509	, _len(len)
duke@435	1510	, _tmp1(t1)
duke@435	1511	, _tmp2(t2)
duke@435	1512	, _tmp3(t3)
duke@435	1513	, _tmp4(t4)
duke@435	1514	, _type(type)
duke@435	1515	, _stub(stub) {}
duke@435	1516
duke@435	1517	LIR_Opr klass() const { return _klass; }
duke@435	1518	LIR_Opr len() const { return _len; }
duke@435	1519	LIR_Opr obj() const { return result_opr(); }
duke@435	1520	LIR_Opr tmp1() const { return _tmp1; }
duke@435	1521	LIR_Opr tmp2() const { return _tmp2; }
duke@435	1522	LIR_Opr tmp3() const { return _tmp3; }
duke@435	1523	LIR_Opr tmp4() const { return _tmp4; }
duke@435	1524	BasicType type() const { return _type; }
duke@435	1525	CodeStub* stub() const { return _stub; }
duke@435	1526
duke@435	1527	virtual void emit_code(LIR_Assembler* masm);
duke@435	1528	virtual LIR_OpAllocArray * as_OpAllocArray () { return this; }
duke@435	1529	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1530	};
duke@435	1531
duke@435	1532
duke@435	1533	class LIR_Op3: public LIR_Op {
duke@435	1534	friend class LIR_OpVisitState;
duke@435	1535
duke@435	1536	private:
duke@435	1537	LIR_Opr _opr1;
duke@435	1538	LIR_Opr _opr2;
duke@435	1539	LIR_Opr _opr3;
duke@435	1540	public:
duke@435	1541	LIR_Op3(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr opr3, LIR_Opr result, CodeEmitInfo* info = NULL)
duke@435	1542	: LIR_Op(code, result, info)
duke@435	1543	, _opr1(opr1)
duke@435	1544	, _opr2(opr2)
duke@435	1545	, _opr3(opr3) { assert(is_in_range(code, begin_op3, end_op3), "code check"); }
duke@435	1546	LIR_Opr in_opr1() const { return _opr1; }
duke@435	1547	LIR_Opr in_opr2() const { return _opr2; }
duke@435	1548	LIR_Opr in_opr3() const { return _opr3; }
duke@435	1549
duke@435	1550	virtual void emit_code(LIR_Assembler* masm);
duke@435	1551	virtual LIR_Op3* as_Op3() { return this; }
duke@435	1552	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1553	};
duke@435	1554
duke@435	1555
duke@435	1556	//--------------------------------
duke@435	1557	class LabelObj: public CompilationResourceObj {
duke@435	1558	private:
duke@435	1559	Label _label;
duke@435	1560	public:
duke@435	1561	LabelObj() {}
duke@435	1562	Label* label() { return &_label; }
duke@435	1563	};
duke@435	1564
duke@435	1565
duke@435	1566	class LIR_OpLock: public LIR_Op {
duke@435	1567	friend class LIR_OpVisitState;
duke@435	1568
duke@435	1569	private:
duke@435	1570	LIR_Opr _hdr;
duke@435	1571	LIR_Opr _obj;
duke@435	1572	LIR_Opr _lock;
duke@435	1573	LIR_Opr _scratch;
duke@435	1574	CodeStub* _stub;
duke@435	1575	public:
duke@435	1576	LIR_OpLock(LIR_Code code, LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info)
duke@435	1577	: LIR_Op(code, LIR_OprFact::illegalOpr, info)
duke@435	1578	, _hdr(hdr)
duke@435	1579	, _obj(obj)
duke@435	1580	, _lock(lock)
duke@435	1581	, _scratch(scratch)
duke@435	1582	, _stub(stub) {}
duke@435	1583
duke@435	1584	LIR_Opr hdr_opr() const { return _hdr; }
duke@435	1585	LIR_Opr obj_opr() const { return _obj; }
duke@435	1586	LIR_Opr lock_opr() const { return _lock; }
duke@435	1587	LIR_Opr scratch_opr() const { return _scratch; }
duke@435	1588	CodeStub* stub() const { return _stub; }
duke@435	1589
duke@435	1590	virtual void emit_code(LIR_Assembler* masm);
duke@435	1591	virtual LIR_OpLock* as_OpLock() { return this; }
duke@435	1592	void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1593	};
duke@435	1594
duke@435	1595
duke@435	1596	class LIR_OpDelay: public LIR_Op {
duke@435	1597	friend class LIR_OpVisitState;
duke@435	1598
duke@435	1599	private:
duke@435	1600	LIR_Op* _op;
duke@435	1601
duke@435	1602	public:
duke@435	1603	LIR_OpDelay(LIR_Op* op, CodeEmitInfo* info):
duke@435	1604	LIR_Op(lir_delay_slot, LIR_OprFact::illegalOpr, info),
duke@435	1605	_op(op) {
duke@435	1606	assert(op->code() == lir_nop || LIRFillDelaySlots, "should be filling with nops");
duke@435	1607	}
duke@435	1608	virtual void emit_code(LIR_Assembler* masm);
duke@435	1609	virtual LIR_OpDelay* as_OpDelay() { return this; }
duke@435	1610	void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1611	LIR_Op* delay_op() const { return _op; }
duke@435	1612	CodeEmitInfo* call_info() const { return info(); }
duke@435	1613	};
duke@435	1614
duke@435	1615
duke@435	1616	// LIR_OpCompareAndSwap
duke@435	1617	class LIR_OpCompareAndSwap : public LIR_Op {
duke@435	1618	friend class LIR_OpVisitState;
duke@435	1619
duke@435	1620	private:
duke@435	1621	LIR_Opr _addr;
duke@435	1622	LIR_Opr _cmp_value;
duke@435	1623	LIR_Opr _new_value;
duke@435	1624	LIR_Opr _tmp1;
duke@435	1625	LIR_Opr _tmp2;
duke@435	1626
duke@435	1627	public:
duke@435	1628	LIR_OpCompareAndSwap(LIR_Code code, LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, LIR_Opr t1, LIR_Opr t2)
duke@435	1629	: LIR_Op(code, LIR_OprFact::illegalOpr, NULL) // no result, no info
duke@435	1630	, _addr(addr)
duke@435	1631	, _cmp_value(cmp_value)
duke@435	1632	, _new_value(new_value)
duke@435	1633	, _tmp1(t1)
duke@435	1634	, _tmp2(t2) { }
duke@435	1635
duke@435	1636	LIR_Opr addr() const { return _addr; }
duke@435	1637	LIR_Opr cmp_value() const { return _cmp_value; }
duke@435	1638	LIR_Opr new_value() const { return _new_value; }
duke@435	1639	LIR_Opr tmp1() const { return _tmp1; }
duke@435	1640	LIR_Opr tmp2() const { return _tmp2; }
duke@435	1641
duke@435	1642	virtual void emit_code(LIR_Assembler* masm);
duke@435	1643	virtual LIR_OpCompareAndSwap * as_OpCompareAndSwap () { return this; }
duke@435	1644	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1645	};
duke@435	1646
duke@435	1647	// LIR_OpProfileCall
duke@435	1648	class LIR_OpProfileCall : public LIR_Op {
duke@435	1649	friend class LIR_OpVisitState;
duke@435	1650
duke@435	1651	private:
duke@435	1652	ciMethod* _profiled_method;
duke@435	1653	int _profiled_bci;
duke@435	1654	LIR_Opr _mdo;
duke@435	1655	LIR_Opr _recv;
duke@435	1656	LIR_Opr _tmp1;
duke@435	1657	ciKlass* _known_holder;
duke@435	1658
duke@435	1659	public:
duke@435	1660	// Destroys recv
duke@435	1661	LIR_OpProfileCall(LIR_Code code, ciMethod* profiled_method, int profiled_bci, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* known_holder)
duke@435	1662	: LIR_Op(code, LIR_OprFact::illegalOpr, NULL) // no result, no info
duke@435	1663	, _profiled_method(profiled_method)
duke@435	1664	, _profiled_bci(profiled_bci)
duke@435	1665	, _mdo(mdo)
duke@435	1666	, _recv(recv)
duke@435	1667	, _tmp1(t1)
duke@435	1668	, _known_holder(known_holder) { }
duke@435	1669
duke@435	1670	ciMethod* profiled_method() const { return _profiled_method; }
duke@435	1671	int profiled_bci() const { return _profiled_bci; }
duke@435	1672	LIR_Opr mdo() const { return _mdo; }
duke@435	1673	LIR_Opr recv() const { return _recv; }
duke@435	1674	LIR_Opr tmp1() const { return _tmp1; }
duke@435	1675	ciKlass* known_holder() const { return _known_holder; }
duke@435	1676
duke@435	1677	virtual void emit_code(LIR_Assembler* masm);
duke@435	1678	virtual LIR_OpProfileCall* as_OpProfileCall() { return this; }
duke@435	1679	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1680	};
duke@435	1681
duke@435	1682
duke@435	1683	class LIR_InsertionBuffer;
duke@435	1684
duke@435	1685	//--------------------------------LIR_List---------------------------------------------------
duke@435	1686	// Maintains a list of LIR instructions (one instance of LIR_List per basic block)
duke@435	1687	// The LIR instructions are appended by the LIR_List class itself;
duke@435	1688	//
duke@435	1689	// Notes:
duke@435	1690	// - all offsets are(should be) in bytes
duke@435	1691	// - local positions are specified with an offset, with offset 0 being local 0
duke@435	1692
duke@435	1693	class LIR_List: public CompilationResourceObj {
duke@435	1694	private:
duke@435	1695	LIR_OpList _operations;
duke@435	1696
duke@435	1697	Compilation* _compilation;
duke@435	1698	#ifndef PRODUCT
duke@435	1699	BlockBegin* _block;
duke@435	1700	#endif
duke@435	1701	#ifdef ASSERT
duke@435	1702	const char * _file;
duke@435	1703	int _line;
duke@435	1704	#endif
duke@435	1705
duke@435	1706	void append(LIR_Op* op) {
duke@435	1707	if (op->source() == NULL)
duke@435	1708	op->set_source(_compilation->current_instruction());
duke@435	1709	#ifndef PRODUCT
duke@435	1710	if (PrintIRWithLIR) {
duke@435	1711	_compilation->maybe_print_current_instruction();
duke@435	1712	op->print(); tty->cr();
duke@435	1713	}
duke@435	1714	#endif // PRODUCT
duke@435	1715
duke@435	1716	_operations.append(op);
duke@435	1717
duke@435	1718	#ifdef ASSERT
duke@435	1719	op->verify();
duke@435	1720	op->set_file_and_line(_file, _line);
duke@435	1721	_file = NULL;
duke@435	1722	_line = 0;
duke@435	1723	#endif
duke@435	1724	}
duke@435	1725
duke@435	1726	public:
duke@435	1727	LIR_List(Compilation* compilation, BlockBegin* block = NULL);
duke@435	1728
duke@435	1729	#ifdef ASSERT
duke@435	1730	void set_file_and_line(const char * file, int line);
duke@435	1731	#endif
duke@435	1732
duke@435	1733	//---------- accessors ---------------
duke@435	1734	LIR_OpList* instructions_list() { return &_operations; }
duke@435	1735	int length() const { return _operations.length(); }
duke@435	1736	LIR_Op* at(int i) const { return _operations.at(i); }
duke@435	1737
duke@435	1738	NOT_PRODUCT(BlockBegin* block() const { return _block; });
duke@435	1739
duke@435	1740	// insert LIR_Ops in buffer to right places in LIR_List
duke@435	1741	void append(LIR_InsertionBuffer* buffer);
duke@435	1742
duke@435	1743	//---------- mutators ---------------
duke@435	1744	void insert_before(int i, LIR_List* op_list) { _operations.insert_before(i, op_list->instructions_list()); }
duke@435	1745	void insert_before(int i, LIR_Op* op) { _operations.insert_before(i, op); }
duke@435	1746
duke@435	1747	//---------- printing -------------
duke@435	1748	void print_instructions() PRODUCT_RETURN;
duke@435	1749
duke@435	1750
duke@435	1751	//---------- instructions -------------
duke@435	1752	void call_opt_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
duke@435	1753	address dest, LIR_OprList* arguments,
duke@435	1754	CodeEmitInfo* info) {
duke@435	1755	append(new LIR_OpJavaCall(lir_optvirtual_call, method, receiver, result, dest, arguments, info));
duke@435	1756	}
duke@435	1757	void call_static(ciMethod* method, LIR_Opr result,
duke@435	1758	address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
duke@435	1759	append(new LIR_OpJavaCall(lir_static_call, method, LIR_OprFact::illegalOpr, result, dest, arguments, info));
duke@435	1760	}
duke@435	1761	void call_icvirtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
duke@435	1762	address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
duke@435	1763	append(new LIR_OpJavaCall(lir_icvirtual_call, method, receiver, result, dest, arguments, info));
duke@435	1764	}
duke@435	1765	void call_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
duke@435	1766	intptr_t vtable_offset, LIR_OprList* arguments, CodeEmitInfo* info) {
duke@435	1767	append(new LIR_OpJavaCall(lir_virtual_call, method, receiver, result, vtable_offset, arguments, info));
duke@435	1768	}
duke@435	1769
duke@435	1770	void get_thread(LIR_Opr result) { append(new LIR_Op0(lir_get_thread, result)); }
duke@435	1771	void word_align() { append(new LIR_Op0(lir_word_align)); }
duke@435	1772	void membar() { append(new LIR_Op0(lir_membar)); }
duke@435	1773	void membar_acquire() { append(new LIR_Op0(lir_membar_acquire)); }
duke@435	1774	void membar_release() { append(new LIR_Op0(lir_membar_release)); }
duke@435	1775
duke@435	1776	void nop() { append(new LIR_Op0(lir_nop)); }
duke@435	1777	void build_frame() { append(new LIR_Op0(lir_build_frame)); }
duke@435	1778
duke@435	1779	void std_entry(LIR_Opr receiver) { append(new LIR_Op0(lir_std_entry, receiver)); }
duke@435	1780	void osr_entry(LIR_Opr osrPointer) { append(new LIR_Op0(lir_osr_entry, osrPointer)); }
duke@435	1781
duke@435	1782	void branch_destination(Label* lbl) { append(new LIR_OpLabel(lbl)); }
duke@435	1783
duke@435	1784	void negate(LIR_Opr from, LIR_Opr to) { append(new LIR_Op1(lir_neg, from, to)); }
duke@435	1785	void leal(LIR_Opr from, LIR_Opr result_reg) { append(new LIR_Op1(lir_leal, from, result_reg)); }
duke@435	1786
duke@435	1787	// result is a stack location for old backend and vreg for UseLinearScan
duke@435	1788	// stack_loc_temp is an illegal register for old backend
duke@435	1789	void roundfp(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result) { append(new LIR_OpRoundFP(reg, stack_loc_temp, result)); }
duke@435	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)); }
duke@435	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)); }
duke@435	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)); }
duke@435	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)); }
duke@435	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)); }
duke@435	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)); }
duke@435	1796
duke@435	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)); }
duke@435	1798
duke@435	1799	void oop2reg (jobject o, LIR_Opr reg) { append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o), reg)); }
duke@435	1800	void oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info);
duke@435	1801
duke@435	1802	void return_op(LIR_Opr result) { append(new LIR_Op1(lir_return, result)); }
duke@435	1803
duke@435	1804	void safepoint(LIR_Opr tmp, CodeEmitInfo* info) { append(new LIR_Op1(lir_safepoint, tmp, info)); }
duke@435	1805
duke@435	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)); }
duke@435	1807
duke@435	1808	void logical_and (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_and, left, right, dst)); }
duke@435	1809	void logical_or (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_or, left, right, dst)); }
duke@435	1810	void logical_xor (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_xor, left, right, dst)); }
duke@435	1811
duke@435	1812	void null_check(LIR_Opr opr, CodeEmitInfo* info) { append(new LIR_Op1(lir_null_check, opr, info)); }
duke@435	1813	void throw_exception(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) { append(new LIR_Op2(lir_throw, exceptionPC, exceptionOop, LIR_OprFact::illegalOpr, info)); }
duke@435	1814	void unwind_exception(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) { append(new LIR_Op2(lir_unwind, exceptionPC, exceptionOop, LIR_OprFact::illegalOpr, info)); }
duke@435	1815
duke@435	1816	void compare_to (LIR_Opr left, LIR_Opr right, LIR_Opr dst) {
duke@435	1817	append(new LIR_Op2(lir_compare_to, left, right, dst));
duke@435	1818	}
duke@435	1819
duke@435	1820	void push(LIR_Opr opr) { append(new LIR_Op1(lir_push, opr)); }
duke@435	1821	void pop(LIR_Opr reg) { append(new LIR_Op1(lir_pop, reg)); }
duke@435	1822
duke@435	1823	void cmp(LIR_Condition condition, LIR_Opr left, LIR_Opr right, CodeEmitInfo* info = NULL) {
duke@435	1824	append(new LIR_Op2(lir_cmp, condition, left, right, info));
duke@435	1825	}
duke@435	1826	void cmp(LIR_Condition condition, LIR_Opr left, int right, CodeEmitInfo* info = NULL) {
duke@435	1827	cmp(condition, left, LIR_OprFact::intConst(right), info);
duke@435	1828	}
duke@435	1829
duke@435	1830	void cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info);
duke@435	1831	void cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info);
duke@435	1832
duke@435	1833	void cmove(LIR_Condition condition, LIR_Opr src1, LIR_Opr src2, LIR_Opr dst) {
duke@435	1834	append(new LIR_Op2(lir_cmove, condition, src1, src2, dst));
duke@435	1835	}
duke@435	1836
duke@435	1837	void cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, LIR_Opr t1, LIR_Opr t2);
duke@435	1838	void cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, LIR_Opr t1, LIR_Opr t2);
duke@435	1839	void cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, LIR_Opr t1, LIR_Opr t2);
duke@435	1840
duke@435	1841	void abs (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_abs , from, tmp, to)); }
duke@435	1842	void sqrt(LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_sqrt, from, tmp, to)); }
never@1388	1843	void log (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_log, from, LIR_OprFact::illegalOpr, to, tmp)); }
never@1388	1844	void log10 (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_log10, from, LIR_OprFact::illegalOpr, to, tmp)); }
duke@435	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)); }
duke@435	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)); }
duke@435	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)); }
duke@435	1848
duke@435	1849	void add (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_add, left, right, res)); }
duke@435	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)); }
duke@435	1851	void mul (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_mul, left, right, res)); }
duke@435	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)); }
duke@435	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)); }
duke@435	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)); }
duke@435	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)); }
duke@435	1856
duke@435	1857	void volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
duke@435	1858	void volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code);
duke@435	1859
duke@435	1860	void load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none);
duke@435	1861
duke@435	1862	void prefetch(LIR_Address* addr, bool is_store);
duke@435	1863
duke@435	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);
duke@435	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);
duke@435	1866	void store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none);
duke@435	1867	void volatile_store_mem_reg(LIR_Opr src, LIR_Address* address, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
duke@435	1868	void volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code);
duke@435	1869
duke@435	1870	void idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
duke@435	1871	void idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
duke@435	1872	void irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
duke@435	1873	void irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
duke@435	1874
duke@435	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);
duke@435	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);
duke@435	1877
duke@435	1878	// jump is an unconditional branch
duke@435	1879	void jump(BlockBegin* block) {
duke@435	1880	append(new LIR_OpBranch(lir_cond_always, T_ILLEGAL, block));
duke@435	1881	}
duke@435	1882	void jump(CodeStub* stub) {
duke@435	1883	append(new LIR_OpBranch(lir_cond_always, T_ILLEGAL, stub));
duke@435	1884	}
duke@435	1885	void branch(LIR_Condition cond, Label* lbl) { append(new LIR_OpBranch(cond, lbl)); }
duke@435	1886	void branch(LIR_Condition cond, BasicType type, BlockBegin* block) {
duke@435	1887	assert(type != T_FLOAT && type != T_DOUBLE, "no fp comparisons");
duke@435	1888	append(new LIR_OpBranch(cond, type, block));
duke@435	1889	}
duke@435	1890	void branch(LIR_Condition cond, BasicType type, CodeStub* stub) {
duke@435	1891	assert(type != T_FLOAT && type != T_DOUBLE, "no fp comparisons");
duke@435	1892	append(new LIR_OpBranch(cond, type, stub));
duke@435	1893	}
duke@435	1894	void branch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* unordered) {
duke@435	1895	assert(type == T_FLOAT || type == T_DOUBLE, "fp comparisons only");
duke@435	1896	append(new LIR_OpBranch(cond, type, block, unordered));
duke@435	1897	}
duke@435	1898
duke@435	1899	void shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
duke@435	1900	void shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
duke@435	1901	void unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
duke@435	1902
duke@435	1903	void shift_left(LIR_Opr value, int count, LIR_Opr dst) { shift_left(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
duke@435	1904	void shift_right(LIR_Opr value, int count, LIR_Opr dst) { shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
duke@435	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); }
duke@435	1906
duke@435	1907	void lcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_cmp_l2i, left, right, dst)); }
duke@435	1908	void fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less);
duke@435	1909
duke@435	1910	void call_runtime_leaf(address routine, LIR_Opr tmp, LIR_Opr result, LIR_OprList* arguments) {
duke@435	1911	append(new LIR_OpRTCall(routine, tmp, result, arguments));
duke@435	1912	}
duke@435	1913
duke@435	1914	void call_runtime(address routine, LIR_Opr tmp, LIR_Opr result,
duke@435	1915	LIR_OprList* arguments, CodeEmitInfo* info) {
duke@435	1916	append(new LIR_OpRTCall(routine, tmp, result, arguments, info));
duke@435	1917	}
duke@435	1918
duke@435	1919	void load_stack_address_monitor(int monitor_ix, LIR_Opr dst) { append(new LIR_Op1(lir_monaddr, LIR_OprFact::intConst(monitor_ix), dst)); }
duke@435	1920	void unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, CodeStub* stub);
duke@435	1921	void lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info);
duke@435	1922
duke@435	1923	void set_24bit_fpu() { append(new LIR_Op0(lir_24bit_FPU )); }
duke@435	1924	void restore_fpu() { append(new LIR_Op0(lir_reset_FPU )); }
duke@435	1925	void breakpoint() { append(new LIR_Op0(lir_breakpoint)); }
duke@435	1926
duke@435	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)); }
duke@435	1928
duke@435	1929	void fpop_raw() { append(new LIR_Op0(lir_fpop_raw)); }
duke@435	1930
duke@435	1931	void checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
duke@435	1932	LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
duke@435	1933	CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
duke@435	1934	ciMethod* profiled_method, int profiled_bci);
duke@435	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);
duke@435	1936	void store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception);
duke@435	1937
duke@435	1938	// methodDataOop profiling
duke@435	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)); }
duke@435	1940	};
duke@435	1941
duke@435	1942	void print_LIR(BlockList* blocks);
duke@435	1943
duke@435	1944	class LIR_InsertionBuffer : public CompilationResourceObj {
duke@435	1945	private:
duke@435	1946	LIR_List* _lir; // the lir list where ops of this buffer should be inserted later (NULL when uninitialized)
duke@435	1947
duke@435	1948	// list of insertion points. index and count are stored alternately:
duke@435	1949	// _index_and_count[i * 2]: the index into lir list where "count" ops should be inserted
duke@435	1950	// _index_and_count[i * 2 + 1]: the number of ops to be inserted at index
duke@435	1951	intStack _index_and_count;
duke@435	1952
duke@435	1953	// the LIR_Ops to be inserted
duke@435	1954	LIR_OpList _ops;
duke@435	1955
duke@435	1956	void append_new(int index, int count) { _index_and_count.append(index); _index_and_count.append(count); }
duke@435	1957	void set_index_at(int i, int value) { _index_and_count.at_put((i << 1), value); }
duke@435	1958	void set_count_at(int i, int value) { _index_and_count.at_put((i << 1) + 1, value); }
duke@435	1959
duke@435	1960	#ifdef ASSERT
duke@435	1961	void verify();
duke@435	1962	#endif
duke@435	1963	public:
duke@435	1964	LIR_InsertionBuffer() : _lir(NULL), _index_and_count(8), _ops(8) { }
duke@435	1965
duke@435	1966	// must be called before using the insertion buffer
duke@435	1967	void init(LIR_List* lir) { assert(!initialized(), "already initialized"); _lir = lir; _index_and_count.clear(); _ops.clear(); }
duke@435	1968	bool initialized() const { return _lir != NULL; }
duke@435	1969	// called automatically when the buffer is appended to the LIR_List
duke@435	1970	void finish() { _lir = NULL; }
duke@435	1971
duke@435	1972	// accessors
duke@435	1973	LIR_List* lir_list() const { return _lir; }
duke@435	1974	int number_of_insertion_points() const { return _index_and_count.length() >> 1; }
duke@435	1975	int index_at(int i) const { return _index_and_count.at((i << 1)); }
duke@435	1976	int count_at(int i) const { return _index_and_count.at((i << 1) + 1); }
duke@435	1977
duke@435	1978	int number_of_ops() const { return _ops.length(); }
duke@435	1979	LIR_Op* op_at(int i) const { return _ops.at(i); }
duke@435	1980
duke@435	1981	// append an instruction to the buffer
duke@435	1982	void append(int index, LIR_Op* op);
duke@435	1983
duke@435	1984	// instruction
duke@435	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)); }
duke@435	1986	};
duke@435	1987
duke@435	1988
duke@435	1989	//
duke@435	1990	// LIR_OpVisitState is used for manipulating LIR_Ops in an abstract way.
duke@435	1991	// Calling a LIR_Op's visit function with a LIR_OpVisitState causes
duke@435	1992	// information about the input, output and temporaries used by the
duke@435	1993	// op to be recorded. It also records whether the op has call semantics
duke@435	1994	// and also records all the CodeEmitInfos used by this op.
duke@435	1995	//
duke@435	1996
duke@435	1997
duke@435	1998	class LIR_OpVisitState: public StackObj {
duke@435	1999	public:
duke@435	2000	typedef enum { inputMode, firstMode = inputMode, tempMode, outputMode, numModes, invalidMode = -1 } OprMode;
duke@435	2001
duke@435	2002	enum {
never@1610	2003	maxNumberOfOperands = 16,
duke@435	2004	maxNumberOfInfos = 4
duke@435	2005	};
duke@435	2006
duke@435	2007	private:
duke@435	2008	LIR_Op* _op;
duke@435	2009
duke@435	2010	// optimization: the operands and infos are not stored in a variable-length
duke@435	2011	// list, but in a fixed-size array to save time of size checks and resizing
duke@435	2012	int _oprs_len[numModes];
duke@435	2013	LIR_Opr* _oprs_new[numModes][maxNumberOfOperands];
duke@435	2014	int _info_len;
duke@435	2015	CodeEmitInfo* _info_new[maxNumberOfInfos];
duke@435	2016
duke@435	2017	bool _has_call;
duke@435	2018	bool _has_slow_case;
duke@435	2019
duke@435	2020
duke@435	2021	// only include register operands
duke@435	2022	// addresses are decomposed to the base and index registers
duke@435	2023	// constants and stack operands are ignored
duke@435	2024	void append(LIR_Opr& opr, OprMode mode) {
duke@435	2025	assert(opr->is_valid(), "should not call this otherwise");
duke@435	2026	assert(mode >= 0 && mode < numModes, "bad mode");
duke@435	2027
duke@435	2028	if (opr->is_register()) {
duke@435	2029	assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
duke@435	2030	_oprs_new[mode][_oprs_len[mode]++] = &opr;
duke@435	2031
duke@435	2032	} else if (opr->is_pointer()) {
duke@435	2033	LIR_Address* address = opr->as_address_ptr();
duke@435	2034	if (address != NULL) {
duke@435	2035	// special handling for addresses: add base and index register of the address
duke@435	2036	// both are always input operands!
duke@435	2037	if (address->_base->is_valid()) {
duke@435	2038	assert(address->_base->is_register(), "must be");
duke@435	2039	assert(_oprs_len[inputMode] < maxNumberOfOperands, "array overflow");
duke@435	2040	_oprs_new[inputMode][_oprs_len[inputMode]++] = &address->_base;
duke@435	2041	}
duke@435	2042	if (address->_index->is_valid()) {
duke@435	2043	assert(address->_index->is_register(), "must be");
duke@435	2044	assert(_oprs_len[inputMode] < maxNumberOfOperands, "array overflow");
duke@435	2045	_oprs_new[inputMode][_oprs_len[inputMode]++] = &address->_index;
duke@435	2046	}
duke@435	2047
duke@435	2048	} else {
duke@435	2049	assert(opr->is_constant(), "constant operands are not processed");
duke@435	2050	}
duke@435	2051	} else {
duke@435	2052	assert(opr->is_stack(), "stack operands are not processed");
duke@435	2053	}
duke@435	2054	}
duke@435	2055
duke@435	2056	void append(CodeEmitInfo* info) {
duke@435	2057	assert(info != NULL, "should not call this otherwise");
duke@435	2058	assert(_info_len < maxNumberOfInfos, "array overflow");
duke@435	2059	_info_new[_info_len++] = info;
duke@435	2060	}
duke@435	2061
duke@435	2062	public:
duke@435	2063	LIR_OpVisitState() { reset(); }
duke@435	2064
duke@435	2065	LIR_Op* op() const { return _op; }
duke@435	2066	void set_op(LIR_Op* op) { reset(); _op = op; }
duke@435	2067
duke@435	2068	bool has_call() const { return _has_call; }
duke@435	2069	bool has_slow_case() const { return _has_slow_case; }
duke@435	2070
duke@435	2071	void reset() {
duke@435	2072	_op = NULL;
duke@435	2073	_has_call = false;
duke@435	2074	_has_slow_case = false;
duke@435	2075
duke@435	2076	_oprs_len[inputMode] = 0;
duke@435	2077	_oprs_len[tempMode] = 0;
duke@435	2078	_oprs_len[outputMode] = 0;
duke@435	2079	_info_len = 0;
duke@435	2080	}
duke@435	2081
duke@435	2082
duke@435	2083	int opr_count(OprMode mode) const {
duke@435	2084	assert(mode >= 0 && mode < numModes, "bad mode");
duke@435	2085	return _oprs_len[mode];
duke@435	2086	}
duke@435	2087
duke@435	2088	LIR_Opr opr_at(OprMode mode, int index) const {
duke@435	2089	assert(mode >= 0 && mode < numModes, "bad mode");
duke@435	2090	assert(index >= 0 && index < _oprs_len[mode], "index out of bound");
duke@435	2091	return *_oprs_new[mode][index];
duke@435	2092	}
duke@435	2093
duke@435	2094	void set_opr_at(OprMode mode, int index, LIR_Opr opr) const {
duke@435	2095	assert(mode >= 0 && mode < numModes, "bad mode");
duke@435	2096	assert(index >= 0 && index < _oprs_len[mode], "index out of bound");
duke@435	2097	*_oprs_new[mode][index] = opr;
duke@435	2098	}
duke@435	2099
duke@435	2100	int info_count() const {
duke@435	2101	return _info_len;
duke@435	2102	}
duke@435	2103
duke@435	2104	CodeEmitInfo* info_at(int index) const {
duke@435	2105	assert(index < _info_len, "index out of bounds");
duke@435	2106	return _info_new[index];
duke@435	2107	}
duke@435	2108
duke@435	2109	XHandlers* all_xhandler();
duke@435	2110
duke@435	2111	// collects all register operands of the instruction
duke@435	2112	void visit(LIR_Op* op);
duke@435	2113
duke@435	2114	#if ASSERT
duke@435	2115	// check that an operation has no operands
duke@435	2116	bool no_operands(LIR_Op* op);
duke@435	2117	#endif
duke@435	2118
duke@435	2119	// LIR_Op visitor functions use these to fill in the state
duke@435	2120	void do_input(LIR_Opr& opr) { append(opr, LIR_OpVisitState::inputMode); }
duke@435	2121	void do_output(LIR_Opr& opr) { append(opr, LIR_OpVisitState::outputMode); }
duke@435	2122	void do_temp(LIR_Opr& opr) { append(opr, LIR_OpVisitState::tempMode); }
duke@435	2123	void do_info(CodeEmitInfo* info) { append(info); }
duke@435	2124
duke@435	2125	void do_stub(CodeStub* stub);
duke@435	2126	void do_call() { _has_call = true; }
duke@435	2127	void do_slow_case() { _has_slow_case = true; }
duke@435	2128	void do_slow_case(CodeEmitInfo* info) {
duke@435	2129	_has_slow_case = true;
duke@435	2130	append(info);
duke@435	2131	}
duke@435	2132	};
duke@435	2133
duke@435	2134
duke@435	2135	inline LIR_Opr LIR_OprDesc::illegalOpr() { return LIR_OprFact::illegalOpr; };