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

src/share/vm/c1/c1_LIR.hpp@87fc6aca31ab (annotated)

src/share/vm/c1/c1_LIR.hpp

Thu, 27 May 2010 22:01:55 -0700

author

iveresov

date

Thu, 27 May 2010 22:01:55 -0700

changeset 1927

87fc6aca31ab

parent 1919

61b2245abf36

child 1934

e9ff18c4ace7

permissions

-rw-r--r--

6955349: C1: Make G1 barriers work with x64
Summary: This fixes G1 barriers in c1 on x64.
Reviewed-by: never

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"); }
roland@1732	88	void type_check(BasicType t1, BasicType t2, BasicType t3) const { assert(type() == t1 || type() == t2 || type() == t3, "type check"); }
duke@435	89
duke@435	90	public:
roland@1732	91	LIR_Const(jint i, bool is_address=false) { _value.set_type(is_address?T_ADDRESS:T_INT); _value.set_jint(i); }
duke@435	92	LIR_Const(jlong l) { _value.set_type(T_LONG); _value.set_jlong(l); }
duke@435	93	LIR_Const(jfloat f) { _value.set_type(T_FLOAT); _value.set_jfloat(f); }
duke@435	94	LIR_Const(jdouble d) { _value.set_type(T_DOUBLE); _value.set_jdouble(d); }
duke@435	95	LIR_Const(jobject o) { _value.set_type(T_OBJECT); _value.set_jobject(o); }
duke@435	96	LIR_Const(void* p) {
duke@435	97	#ifdef _LP64
duke@435	98	assert(sizeof(jlong) >= sizeof(p), "too small");;
duke@435	99	_value.set_type(T_LONG); _value.set_jlong((jlong)p);
duke@435	100	#else
duke@435	101	assert(sizeof(jint) >= sizeof(p), "too small");;
duke@435	102	_value.set_type(T_INT); _value.set_jint((jint)p);
duke@435	103	#endif
duke@435	104	}
duke@435	105
duke@435	106	virtual BasicType type() const { return _value.get_type(); }
duke@435	107	virtual LIR_Const* as_constant() { return this; }
duke@435	108
roland@1732	109	jint as_jint() const { type_check(T_INT, T_ADDRESS); return _value.get_jint(); }
duke@435	110	jlong as_jlong() const { type_check(T_LONG ); return _value.get_jlong(); }
duke@435	111	jfloat as_jfloat() const { type_check(T_FLOAT ); return _value.get_jfloat(); }
duke@435	112	jdouble as_jdouble() const { type_check(T_DOUBLE); return _value.get_jdouble(); }
duke@435	113	jobject as_jobject() const { type_check(T_OBJECT); return _value.get_jobject(); }
duke@435	114	jint as_jint_lo() const { type_check(T_LONG ); return low(_value.get_jlong()); }
duke@435	115	jint as_jint_hi() const { type_check(T_LONG ); return high(_value.get_jlong()); }
duke@435	116
duke@435	117	#ifdef _LP64
duke@435	118	address as_pointer() const { type_check(T_LONG ); return (address)_value.get_jlong(); }
duke@435	119	#else
duke@435	120	address as_pointer() const { type_check(T_INT ); return (address)_value.get_jint(); }
duke@435	121	#endif
duke@435	122
duke@435	123
roland@1732	124	jint as_jint_bits() const { type_check(T_FLOAT, T_INT, T_ADDRESS); return _value.get_jint(); }
duke@435	125	jint as_jint_lo_bits() const {
duke@435	126	if (type() == T_DOUBLE) {
duke@435	127	return low(jlong_cast(_value.get_jdouble()));
duke@435	128	} else {
duke@435	129	return as_jint_lo();
duke@435	130	}
duke@435	131	}
duke@435	132	jint as_jint_hi_bits() const {
duke@435	133	if (type() == T_DOUBLE) {
duke@435	134	return high(jlong_cast(_value.get_jdouble()));
duke@435	135	} else {
duke@435	136	return as_jint_hi();
duke@435	137	}
duke@435	138	}
never@739	139	jlong as_jlong_bits() const {
never@739	140	if (type() == T_DOUBLE) {
never@739	141	return jlong_cast(_value.get_jdouble());
never@739	142	} else {
never@739	143	return as_jlong();
never@739	144	}
never@739	145	}
duke@435	146
duke@435	147	virtual void print_value_on(outputStream* out) const PRODUCT_RETURN;
duke@435	148
duke@435	149
duke@435	150	bool is_zero_float() {
duke@435	151	jfloat f = as_jfloat();
duke@435	152	jfloat ok = 0.0f;
duke@435	153	return jint_cast(f) == jint_cast(ok);
duke@435	154	}
duke@435	155
duke@435	156	bool is_one_float() {
duke@435	157	jfloat f = as_jfloat();
duke@435	158	return !g_isnan(f) && g_isfinite(f) && f == 1.0;
duke@435	159	}
duke@435	160
duke@435	161	bool is_zero_double() {
duke@435	162	jdouble d = as_jdouble();
duke@435	163	jdouble ok = 0.0;
duke@435	164	return jlong_cast(d) == jlong_cast(ok);
duke@435	165	}
duke@435	166
duke@435	167	bool is_one_double() {
duke@435	168	jdouble d = as_jdouble();
duke@435	169	return !g_isnan(d) && g_isfinite(d) && d == 1.0;
duke@435	170	}
duke@435	171	};
duke@435	172
duke@435	173
duke@435	174	//---------------------LIR Operand descriptor------------------------------------
duke@435	175	//
duke@435	176	// The class LIR_OprDesc represents a LIR instruction operand;
duke@435	177	// it can be a register (ALU/FPU), stack location or a constant;
duke@435	178	// Constants and addresses are represented as resource area allocated
duke@435	179	// structures (see above).
duke@435	180	// Registers and stack locations are inlined into the this pointer
duke@435	181	// (see value function).
duke@435	182
duke@435	183	class LIR_OprDesc: public CompilationResourceObj {
duke@435	184	public:
duke@435	185	// value structure:
duke@435	186	// data opr-type opr-kind
duke@435	187	// +--------------+-------+-------+
duke@435	188	// [max...........|7 6 5 4|3 2 1 0]
duke@435	189	// ^
duke@435	190	// is_pointer bit
duke@435	191	//
duke@435	192	// lowest bit cleared, means it is a structure pointer
duke@435	193	// we need 4 bits to represent types
duke@435	194
duke@435	195	private:
duke@435	196	friend class LIR_OprFact;
duke@435	197
duke@435	198	// Conversion
duke@435	199	intptr_t value() const { return (intptr_t) this; }
duke@435	200
duke@435	201	bool check_value_mask(intptr_t mask, intptr_t masked_value) const {
duke@435	202	return (value() & mask) == masked_value;
duke@435	203	}
duke@435	204
duke@435	205	enum OprKind {
duke@435	206	pointer_value = 0
duke@435	207	, stack_value = 1
duke@435	208	, cpu_register = 3
duke@435	209	, fpu_register = 5
duke@435	210	, illegal_value = 7
duke@435	211	};
duke@435	212
duke@435	213	enum OprBits {
duke@435	214	pointer_bits = 1
duke@435	215	, kind_bits = 3
duke@435	216	, type_bits = 4
duke@435	217	, size_bits = 2
duke@435	218	, destroys_bits = 1
duke@435	219	, virtual_bits = 1
duke@435	220	, is_xmm_bits = 1
duke@435	221	, last_use_bits = 1
duke@435	222	, is_fpu_stack_offset_bits = 1 // used in assertion checking on x86 for FPU stack slot allocation
duke@435	223	, non_data_bits = kind_bits + type_bits + size_bits + destroys_bits + last_use_bits +
duke@435	224	is_fpu_stack_offset_bits + virtual_bits + is_xmm_bits
duke@435	225	, data_bits = BitsPerInt - non_data_bits
duke@435	226	, reg_bits = data_bits / 2 // for two registers in one value encoding
duke@435	227	};
duke@435	228
duke@435	229	enum OprShift {
duke@435	230	kind_shift = 0
duke@435	231	, type_shift = kind_shift + kind_bits
duke@435	232	, size_shift = type_shift + type_bits
duke@435	233	, destroys_shift = size_shift + size_bits
duke@435	234	, last_use_shift = destroys_shift + destroys_bits
duke@435	235	, is_fpu_stack_offset_shift = last_use_shift + last_use_bits
duke@435	236	, virtual_shift = is_fpu_stack_offset_shift + is_fpu_stack_offset_bits
duke@435	237	, is_xmm_shift = virtual_shift + virtual_bits
duke@435	238	, data_shift = is_xmm_shift + is_xmm_bits
duke@435	239	, reg1_shift = data_shift
duke@435	240	, reg2_shift = data_shift + reg_bits
duke@435	241
duke@435	242	};
duke@435	243
duke@435	244	enum OprSize {
duke@435	245	single_size = 0 << size_shift
duke@435	246	, double_size = 1 << size_shift
duke@435	247	};
duke@435	248
duke@435	249	enum OprMask {
duke@435	250	kind_mask = right_n_bits(kind_bits)
duke@435	251	, type_mask = right_n_bits(type_bits) << type_shift
duke@435	252	, size_mask = right_n_bits(size_bits) << size_shift
duke@435	253	, last_use_mask = right_n_bits(last_use_bits) << last_use_shift
duke@435	254	, is_fpu_stack_offset_mask = right_n_bits(is_fpu_stack_offset_bits) << is_fpu_stack_offset_shift
duke@435	255	, virtual_mask = right_n_bits(virtual_bits) << virtual_shift
duke@435	256	, is_xmm_mask = right_n_bits(is_xmm_bits) << is_xmm_shift
duke@435	257	, pointer_mask = right_n_bits(pointer_bits)
duke@435	258	, lower_reg_mask = right_n_bits(reg_bits)
duke@435	259	, no_type_mask = (int)(~(type_mask | last_use_mask | is_fpu_stack_offset_mask))
duke@435	260	};
duke@435	261
duke@435	262	uintptr_t data() const { return value() >> data_shift; }
duke@435	263	int lo_reg_half() const { return data() & lower_reg_mask; }
duke@435	264	int hi_reg_half() const { return (data() >> reg_bits) & lower_reg_mask; }
duke@435	265	OprKind kind_field() const { return (OprKind)(value() & kind_mask); }
duke@435	266	OprSize size_field() const { return (OprSize)(value() & size_mask); }
duke@435	267
duke@435	268	static char type_char(BasicType t);
duke@435	269
duke@435	270	public:
duke@435	271	enum {
duke@435	272	vreg_base = ConcreteRegisterImpl::number_of_registers,
duke@435	273	vreg_max = (1 << data_bits) - 1
duke@435	274	};
duke@435	275
duke@435	276	static inline LIR_Opr illegalOpr();
duke@435	277
duke@435	278	enum OprType {
duke@435	279	unknown_type = 0 << type_shift // means: not set (catch uninitialized types)
duke@435	280	, int_type = 1 << type_shift
duke@435	281	, long_type = 2 << type_shift
duke@435	282	, object_type = 3 << type_shift
duke@435	283	, pointer_type = 4 << type_shift
duke@435	284	, float_type = 5 << type_shift
duke@435	285	, double_type = 6 << type_shift
duke@435	286	};
duke@435	287	friend OprType as_OprType(BasicType t);
duke@435	288	friend BasicType as_BasicType(OprType t);
duke@435	289
duke@435	290	OprType type_field_valid() const { assert(is_register() || is_stack(), "should not be called otherwise"); return (OprType)(value() & type_mask); }
duke@435	291	OprType type_field() const { return is_illegal() ? unknown_type : (OprType)(value() & type_mask); }
duke@435	292
duke@435	293	static OprSize size_for(BasicType t) {
duke@435	294	switch (t) {
duke@435	295	case T_LONG:
duke@435	296	case T_DOUBLE:
duke@435	297	return double_size;
duke@435	298	break;
duke@435	299
duke@435	300	case T_FLOAT:
duke@435	301	case T_BOOLEAN:
duke@435	302	case T_CHAR:
duke@435	303	case T_BYTE:
duke@435	304	case T_SHORT:
duke@435	305	case T_INT:
duke@435	306	case T_OBJECT:
duke@435	307	case T_ARRAY:
duke@435	308	return single_size;
duke@435	309	break;
duke@435	310
duke@435	311	default:
duke@435	312	ShouldNotReachHere();
never@739	313	return single_size;
duke@435	314	}
duke@435	315	}
duke@435	316
duke@435	317
duke@435	318	void validate_type() const PRODUCT_RETURN;
duke@435	319
duke@435	320	BasicType type() const {
duke@435	321	if (is_pointer()) {
duke@435	322	return pointer()->type();
duke@435	323	}
duke@435	324	return as_BasicType(type_field());
duke@435	325	}
duke@435	326
duke@435	327
duke@435	328	ValueType* value_type() const { return as_ValueType(type()); }
duke@435	329
duke@435	330	char type_char() const { return type_char((is_pointer()) ? pointer()->type() : type()); }
duke@435	331
duke@435	332	bool is_equal(LIR_Opr opr) const { return this == opr; }
duke@435	333	// checks whether types are same
duke@435	334	bool is_same_type(LIR_Opr opr) const {
duke@435	335	assert(type_field() != unknown_type &&
duke@435	336	opr->type_field() != unknown_type, "shouldn't see unknown_type");
duke@435	337	return type_field() == opr->type_field();
duke@435	338	}
duke@435	339	bool is_same_register(LIR_Opr opr) {
duke@435	340	return (is_register() && opr->is_register() &&
duke@435	341	kind_field() == opr->kind_field() &&
duke@435	342	(value() & no_type_mask) == (opr->value() & no_type_mask));
duke@435	343	}
duke@435	344
duke@435	345	bool is_pointer() const { return check_value_mask(pointer_mask, pointer_value); }
duke@435	346	bool is_illegal() const { return kind_field() == illegal_value; }
duke@435	347	bool is_valid() const { return kind_field() != illegal_value; }
duke@435	348
duke@435	349	bool is_register() const { return is_cpu_register() || is_fpu_register(); }
duke@435	350	bool is_virtual() const { return is_virtual_cpu() || is_virtual_fpu(); }
duke@435	351
duke@435	352	bool is_constant() const { return is_pointer() && pointer()->as_constant() != NULL; }
duke@435	353	bool is_address() const { return is_pointer() && pointer()->as_address() != NULL; }
duke@435	354
duke@435	355	bool is_float_kind() const { return is_pointer() ? pointer()->is_float_kind() : (kind_field() == fpu_register); }
duke@435	356	bool is_oop() const;
duke@435	357
duke@435	358	// semantic for fpu- and xmm-registers:
duke@435	359	// * is_float and is_double return true for xmm_registers
duke@435	360	// (so is_single_fpu and is_single_xmm are true)
duke@435	361	// * So you must always check for is_???_xmm prior to is_???_fpu to
duke@435	362	// distinguish between fpu- and xmm-registers
duke@435	363
duke@435	364	bool is_stack() const { validate_type(); return check_value_mask(kind_mask, stack_value); }
duke@435	365	bool is_single_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | single_size); }
duke@435	366	bool is_double_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | double_size); }
duke@435	367
duke@435	368	bool is_cpu_register() const { validate_type(); return check_value_mask(kind_mask, cpu_register); }
duke@435	369	bool is_virtual_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register | virtual_mask); }
duke@435	370	bool is_fixed_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register); }
duke@435	371	bool is_single_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | single_size); }
duke@435	372	bool is_double_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | double_size); }
duke@435	373
duke@435	374	bool is_fpu_register() const { validate_type(); return check_value_mask(kind_mask, fpu_register); }
duke@435	375	bool is_virtual_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register | virtual_mask); }
duke@435	376	bool is_fixed_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register); }
duke@435	377	bool is_single_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | single_size); }
duke@435	378	bool is_double_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | double_size); }
duke@435	379
duke@435	380	bool is_xmm_register() const { validate_type(); return check_value_mask(kind_mask | is_xmm_mask, fpu_register | is_xmm_mask); }
duke@435	381	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	382	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	383
duke@435	384	// fast accessor functions for special bits that do not work for pointers
duke@435	385	// (in this functions, the check for is_pointer() is omitted)
duke@435	386	bool is_single_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, single_size); }
duke@435	387	bool is_double_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, double_size); }
duke@435	388	bool is_virtual_register() const { assert(is_register(), "type check"); return check_value_mask(virtual_mask, virtual_mask); }
duke@435	389	bool is_oop_register() const { assert(is_register() || is_stack(), "type check"); return type_field_valid() == object_type; }
duke@435	390	BasicType type_register() const { assert(is_register() || is_stack(), "type check"); return as_BasicType(type_field_valid()); }
duke@435	391
duke@435	392	bool is_last_use() const { assert(is_register(), "only works for registers"); return (value() & last_use_mask) != 0; }
duke@435	393	bool is_fpu_stack_offset() const { assert(is_register(), "only works for registers"); return (value() & is_fpu_stack_offset_mask) != 0; }
duke@435	394	LIR_Opr make_last_use() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | last_use_mask); }
duke@435	395	LIR_Opr make_fpu_stack_offset() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | is_fpu_stack_offset_mask); }
duke@435	396
duke@435	397
duke@435	398	int single_stack_ix() const { assert(is_single_stack() && !is_virtual(), "type check"); return (int)data(); }
duke@435	399	int double_stack_ix() const { assert(is_double_stack() && !is_virtual(), "type check"); return (int)data(); }
duke@435	400	RegNr cpu_regnr() const { assert(is_single_cpu() && !is_virtual(), "type check"); return (RegNr)data(); }
duke@435	401	RegNr cpu_regnrLo() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
duke@435	402	RegNr cpu_regnrHi() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
duke@435	403	RegNr fpu_regnr() const { assert(is_single_fpu() && !is_virtual(), "type check"); return (RegNr)data(); }
duke@435	404	RegNr fpu_regnrLo() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
duke@435	405	RegNr fpu_regnrHi() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
duke@435	406	RegNr xmm_regnr() const { assert(is_single_xmm() && !is_virtual(), "type check"); return (RegNr)data(); }
duke@435	407	RegNr xmm_regnrLo() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
duke@435	408	RegNr xmm_regnrHi() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
duke@435	409	int vreg_number() const { assert(is_virtual(), "type check"); return (RegNr)data(); }
duke@435	410
duke@435	411	LIR_OprPtr* pointer() const { assert(is_pointer(), "type check"); return (LIR_OprPtr*)this; }
duke@435	412	LIR_Const* as_constant_ptr() const { return pointer()->as_constant(); }
duke@435	413	LIR_Address* as_address_ptr() const { return pointer()->as_address(); }
duke@435	414
duke@435	415	Register as_register() const;
duke@435	416	Register as_register_lo() const;
duke@435	417	Register as_register_hi() const;
duke@435	418
duke@435	419	Register as_pointer_register() {
duke@435	420	#ifdef _LP64
duke@435	421	if (is_double_cpu()) {
duke@435	422	assert(as_register_lo() == as_register_hi(), "should be a single register");
duke@435	423	return as_register_lo();
duke@435	424	}
duke@435	425	#endif
duke@435	426	return as_register();
duke@435	427	}
duke@435	428
never@739	429	#ifdef X86
duke@435	430	XMMRegister as_xmm_float_reg() const;
duke@435	431	XMMRegister as_xmm_double_reg() const;
duke@435	432	// for compatibility with RInfo
duke@435	433	int fpu () const { return lo_reg_half(); }
never@739	434	#endif // X86
duke@435	435
duke@435	436	#ifdef SPARC
duke@435	437	FloatRegister as_float_reg () const;
duke@435	438	FloatRegister as_double_reg () const;
duke@435	439	#endif
duke@435	440
duke@435	441	jint as_jint() const { return as_constant_ptr()->as_jint(); }
duke@435	442	jlong as_jlong() const { return as_constant_ptr()->as_jlong(); }
duke@435	443	jfloat as_jfloat() const { return as_constant_ptr()->as_jfloat(); }
duke@435	444	jdouble as_jdouble() const { return as_constant_ptr()->as_jdouble(); }
duke@435	445	jobject as_jobject() const { return as_constant_ptr()->as_jobject(); }
duke@435	446
duke@435	447	void print() const PRODUCT_RETURN;
duke@435	448	void print(outputStream* out) const PRODUCT_RETURN;
duke@435	449	};
duke@435	450
duke@435	451
duke@435	452	inline LIR_OprDesc::OprType as_OprType(BasicType type) {
duke@435	453	switch (type) {
duke@435	454	case T_INT: return LIR_OprDesc::int_type;
duke@435	455	case T_LONG: return LIR_OprDesc::long_type;
duke@435	456	case T_FLOAT: return LIR_OprDesc::float_type;
duke@435	457	case T_DOUBLE: return LIR_OprDesc::double_type;
duke@435	458	case T_OBJECT:
duke@435	459	case T_ARRAY: return LIR_OprDesc::object_type;
duke@435	460	case T_ILLEGAL: // fall through
duke@435	461	default: ShouldNotReachHere(); return LIR_OprDesc::unknown_type;
duke@435	462	}
duke@435	463	}
duke@435	464
duke@435	465	inline BasicType as_BasicType(LIR_OprDesc::OprType t) {
duke@435	466	switch (t) {
duke@435	467	case LIR_OprDesc::int_type: return T_INT;
duke@435	468	case LIR_OprDesc::long_type: return T_LONG;
duke@435	469	case LIR_OprDesc::float_type: return T_FLOAT;
duke@435	470	case LIR_OprDesc::double_type: return T_DOUBLE;
duke@435	471	case LIR_OprDesc::object_type: return T_OBJECT;
duke@435	472	case LIR_OprDesc::unknown_type: // fall through
duke@435	473	default: ShouldNotReachHere(); return T_ILLEGAL;
duke@435	474	}
duke@435	475	}
duke@435	476
duke@435	477
duke@435	478	// LIR_Address
duke@435	479	class LIR_Address: public LIR_OprPtr {
duke@435	480	friend class LIR_OpVisitState;
duke@435	481
duke@435	482	public:
duke@435	483	// NOTE: currently these must be the log2 of the scale factor (and
duke@435	484	// must also be equivalent to the ScaleFactor enum in
duke@435	485	// assembler_i486.hpp)
duke@435	486	enum Scale {
duke@435	487	times_1 = 0,
duke@435	488	times_2 = 1,
duke@435	489	times_4 = 2,
duke@435	490	times_8 = 3
duke@435	491	};
duke@435	492
duke@435	493	private:
duke@435	494	LIR_Opr _base;
duke@435	495	LIR_Opr _index;
duke@435	496	Scale _scale;
duke@435	497	intx _disp;
duke@435	498	BasicType _type;
duke@435	499
duke@435	500	public:
duke@435	501	LIR_Address(LIR_Opr base, LIR_Opr index, BasicType type):
duke@435	502	_base(base)
duke@435	503	, _index(index)
duke@435	504	, _scale(times_1)
duke@435	505	, _type(type)
duke@435	506	, _disp(0) { verify(); }
duke@435	507
iveresov@1927	508	LIR_Address(LIR_Opr base, intx disp, BasicType type):
duke@435	509	_base(base)
duke@435	510	, _index(LIR_OprDesc::illegalOpr())
duke@435	511	, _scale(times_1)
duke@435	512	, _type(type)
duke@435	513	, _disp(disp) { verify(); }
duke@435	514
iveresov@1927	515	LIR_Address(LIR_Opr base, BasicType type):
iveresov@1927	516	_base(base)
iveresov@1927	517	, _index(LIR_OprDesc::illegalOpr())
iveresov@1927	518	, _scale(times_1)
iveresov@1927	519	, _type(type)
iveresov@1927	520	, _disp(0) { verify(); }
iveresov@1927	521
never@739	522	#ifdef X86
iveresov@1927	523	LIR_Address(LIR_Opr base, LIR_Opr index, Scale scale, intx disp, BasicType type):
duke@435	524	_base(base)
duke@435	525	, _index(index)
duke@435	526	, _scale(scale)
duke@435	527	, _type(type)
duke@435	528	, _disp(disp) { verify(); }
never@739	529	#endif // X86
duke@435	530
duke@435	531	LIR_Opr base() const { return _base; }
duke@435	532	LIR_Opr index() const { return _index; }
duke@435	533	Scale scale() const { return _scale; }
duke@435	534	intx disp() const { return _disp; }
duke@435	535
duke@435	536	bool equals(LIR_Address* other) const { return base() == other->base() && index() == other->index() && disp() == other->disp() && scale() == other->scale(); }
duke@435	537
duke@435	538	virtual LIR_Address* as_address() { return this; }
duke@435	539	virtual BasicType type() const { return _type; }
duke@435	540	virtual void print_value_on(outputStream* out) const PRODUCT_RETURN;
duke@435	541
duke@435	542	void verify() const PRODUCT_RETURN;
duke@435	543
duke@435	544	static Scale scale(BasicType type);
duke@435	545	};
duke@435	546
duke@435	547
duke@435	548	// operand factory
duke@435	549	class LIR_OprFact: public AllStatic {
duke@435	550	public:
duke@435	551
duke@435	552	static LIR_Opr illegalOpr;
duke@435	553
never@739	554	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	555	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	556	static LIR_Opr double_cpu(int reg1, int reg2) {
never@739	557	LP64_ONLY(assert(reg1 == reg2, "must be identical"));
never@739	558	return (LIR_Opr)(intptr_t)((reg1 << LIR_OprDesc::reg1_shift) |
never@739	559	(reg2 << LIR_OprDesc::reg2_shift) |
never@739	560	LIR_OprDesc::long_type |
never@739	561	LIR_OprDesc::cpu_register |
never@739	562	LIR_OprDesc::double_size);
never@739	563	}
duke@435	564
never@739	565	static LIR_Opr single_fpu(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
never@739	566	LIR_OprDesc::float_type |
never@739	567	LIR_OprDesc::fpu_register |
never@739	568	LIR_OprDesc::single_size); }
duke@435	569
duke@435	570	#ifdef SPARC
never@739	571	static LIR_Opr double_fpu(int reg1, int reg2) { return (LIR_Opr)(intptr_t)((reg1 << LIR_OprDesc::reg1_shift) |
never@739	572	(reg2 << LIR_OprDesc::reg2_shift) |
never@739	573	LIR_OprDesc::double_type |
never@739	574	LIR_OprDesc::fpu_register |
never@739	575	LIR_OprDesc::double_size); }
duke@435	576	#endif
never@739	577	#ifdef X86
never@739	578	static LIR_Opr double_fpu(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
never@739	579	(reg << LIR_OprDesc::reg2_shift) |
never@739	580	LIR_OprDesc::double_type |
never@739	581	LIR_OprDesc::fpu_register |
never@739	582	LIR_OprDesc::double_size); }
never@739	583
never@739	584	static LIR_Opr single_xmm(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
never@739	585	LIR_OprDesc::float_type |
never@739	586	LIR_OprDesc::fpu_register |
never@739	587	LIR_OprDesc::single_size |
never@739	588	LIR_OprDesc::is_xmm_mask); }
never@739	589	static LIR_Opr double_xmm(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) |
never@739	590	(reg << LIR_OprDesc::reg2_shift) |
never@739	591	LIR_OprDesc::double_type |
never@739	592	LIR_OprDesc::fpu_register |
never@739	593	LIR_OprDesc::double_size |
never@739	594	LIR_OprDesc::is_xmm_mask); }
never@739	595	#endif // X86
duke@435	596
duke@435	597
duke@435	598	static LIR_Opr virtual_register(int index, BasicType type) {
duke@435	599	LIR_Opr res;
duke@435	600	switch (type) {
duke@435	601	case T_OBJECT: // fall through
never@739	602	case T_ARRAY:
never@739	603	res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
never@739	604	LIR_OprDesc::object_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_INT:
never@739	611	res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
never@739	612	LIR_OprDesc::int_type |
never@739	613	LIR_OprDesc::cpu_register |
never@739	614	LIR_OprDesc::single_size |
never@739	615	LIR_OprDesc::virtual_mask);
never@739	616	break;
never@739	617
never@739	618	case T_LONG:
never@739	619	res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
never@739	620	LIR_OprDesc::long_type |
never@739	621	LIR_OprDesc::cpu_register |
never@739	622	LIR_OprDesc::double_size |
never@739	623	LIR_OprDesc::virtual_mask);
never@739	624	break;
never@739	625
never@739	626	case T_FLOAT:
never@739	627	res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
never@739	628	LIR_OprDesc::float_type |
never@739	629	LIR_OprDesc::fpu_register |
never@739	630	LIR_OprDesc::single_size |
never@739	631	LIR_OprDesc::virtual_mask);
never@739	632	break;
never@739	633
never@739	634	case
never@739	635	T_DOUBLE: res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
never@739	636	LIR_OprDesc::double_type |
never@739	637	LIR_OprDesc::fpu_register |
never@739	638	LIR_OprDesc::double_size |
never@739	639	LIR_OprDesc::virtual_mask);
never@739	640	break;
duke@435	641
duke@435	642	default: ShouldNotReachHere(); res = illegalOpr;
duke@435	643	}
duke@435	644
duke@435	645	#ifdef ASSERT
duke@435	646	res->validate_type();
duke@435	647	assert(res->vreg_number() == index, "conversion check");
duke@435	648	assert(index >= LIR_OprDesc::vreg_base, "must start at vreg_base");
duke@435	649	assert(index <= (max_jint >> LIR_OprDesc::data_shift), "index is too big");
duke@435	650
duke@435	651	// old-style calculation; check if old and new method are equal
duke@435	652	LIR_OprDesc::OprType t = as_OprType(type);
never@739	653	LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | t |
never@739	654	((type == T_FLOAT || type == T_DOUBLE) ? LIR_OprDesc::fpu_register : LIR_OprDesc::cpu_register) |
duke@435	655	LIR_OprDesc::size_for(type) | LIR_OprDesc::virtual_mask);
duke@435	656	assert(res == old_res, "old and new method not equal");
duke@435	657	#endif
duke@435	658
duke@435	659	return res;
duke@435	660	}
duke@435	661
duke@435	662	// 'index' is computed by FrameMap::local_stack_pos(index); do not use other parameters as
duke@435	663	// the index is platform independent; a double stack useing indeces 2 and 3 has always
duke@435	664	// index 2.
duke@435	665	static LIR_Opr stack(int index, BasicType type) {
duke@435	666	LIR_Opr res;
duke@435	667	switch (type) {
duke@435	668	case T_OBJECT: // fall through
never@739	669	case T_ARRAY:
never@739	670	res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
never@739	671	LIR_OprDesc::object_type |
never@739	672	LIR_OprDesc::stack_value |
never@739	673	LIR_OprDesc::single_size);
never@739	674	break;
never@739	675
never@739	676	case T_INT:
never@739	677	res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
never@739	678	LIR_OprDesc::int_type |
never@739	679	LIR_OprDesc::stack_value |
never@739	680	LIR_OprDesc::single_size);
never@739	681	break;
never@739	682
never@739	683	case T_LONG:
never@739	684	res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
never@739	685	LIR_OprDesc::long_type |
never@739	686	LIR_OprDesc::stack_value |
never@739	687	LIR_OprDesc::double_size);
never@739	688	break;
never@739	689
never@739	690	case T_FLOAT:
never@739	691	res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
never@739	692	LIR_OprDesc::float_type |
never@739	693	LIR_OprDesc::stack_value |
never@739	694	LIR_OprDesc::single_size);
never@739	695	break;
never@739	696	case T_DOUBLE:
never@739	697	res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
never@739	698	LIR_OprDesc::double_type |
never@739	699	LIR_OprDesc::stack_value |
never@739	700	LIR_OprDesc::double_size);
never@739	701	break;
duke@435	702
duke@435	703	default: ShouldNotReachHere(); res = illegalOpr;
duke@435	704	}
duke@435	705
duke@435	706	#ifdef ASSERT
duke@435	707	assert(index >= 0, "index must be positive");
duke@435	708	assert(index <= (max_jint >> LIR_OprDesc::data_shift), "index is too big");
duke@435	709
never@739	710	LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) |
never@739	711	LIR_OprDesc::stack_value |
never@739	712	as_OprType(type) |
never@739	713	LIR_OprDesc::size_for(type));
duke@435	714	assert(res == old_res, "old and new method not equal");
duke@435	715	#endif
duke@435	716
duke@435	717	return res;
duke@435	718	}
duke@435	719
duke@435	720	static LIR_Opr intConst(jint i) { return (LIR_Opr)(new LIR_Const(i)); }
duke@435	721	static LIR_Opr longConst(jlong l) { return (LIR_Opr)(new LIR_Const(l)); }
duke@435	722	static LIR_Opr floatConst(jfloat f) { return (LIR_Opr)(new LIR_Const(f)); }
duke@435	723	static LIR_Opr doubleConst(jdouble d) { return (LIR_Opr)(new LIR_Const(d)); }
duke@435	724	static LIR_Opr oopConst(jobject o) { return (LIR_Opr)(new LIR_Const(o)); }
duke@435	725	static LIR_Opr address(LIR_Address* a) { return (LIR_Opr)a; }
duke@435	726	static LIR_Opr intptrConst(void* p) { return (LIR_Opr)(new LIR_Const(p)); }
duke@435	727	static LIR_Opr intptrConst(intptr_t v) { return (LIR_Opr)(new LIR_Const((void*)v)); }
duke@435	728	static LIR_Opr illegal() { return (LIR_Opr)-1; }
roland@1732	729	static LIR_Opr addressConst(jint i) { return (LIR_Opr)(new LIR_Const(i, true)); }
duke@435	730
duke@435	731	static LIR_Opr value_type(ValueType* type);
duke@435	732	static LIR_Opr dummy_value_type(ValueType* type);
duke@435	733	};
duke@435	734
duke@435	735
duke@435	736	//-------------------------------------------------------------------------------
duke@435	737	// LIR Instructions
duke@435	738	//-------------------------------------------------------------------------------
duke@435	739	//
duke@435	740	// Note:
duke@435	741	// - every instruction has a result operand
duke@435	742	// - every instruction has an CodeEmitInfo operand (can be revisited later)
duke@435	743	// - every instruction has a LIR_OpCode operand
duke@435	744	// - LIR_OpN, means an instruction that has N input operands
duke@435	745	//
duke@435	746	// class hierarchy:
duke@435	747	//
duke@435	748	class LIR_Op;
duke@435	749	class LIR_Op0;
duke@435	750	class LIR_OpLabel;
duke@435	751	class LIR_Op1;
duke@435	752	class LIR_OpBranch;
duke@435	753	class LIR_OpConvert;
duke@435	754	class LIR_OpAllocObj;
duke@435	755	class LIR_OpRoundFP;
duke@435	756	class LIR_Op2;
duke@435	757	class LIR_OpDelay;
duke@435	758	class LIR_Op3;
duke@435	759	class LIR_OpAllocArray;
duke@435	760	class LIR_OpCall;
duke@435	761	class LIR_OpJavaCall;
duke@435	762	class LIR_OpRTCall;
duke@435	763	class LIR_OpArrayCopy;
duke@435	764	class LIR_OpLock;
duke@435	765	class LIR_OpTypeCheck;
duke@435	766	class LIR_OpCompareAndSwap;
duke@435	767	class LIR_OpProfileCall;
duke@435	768
duke@435	769
duke@435	770	// LIR operation codes
duke@435	771	enum LIR_Code {
duke@435	772	lir_none
duke@435	773	, begin_op0
duke@435	774	, lir_word_align
duke@435	775	, lir_label
duke@435	776	, lir_nop
duke@435	777	, lir_backwardbranch_target
duke@435	778	, lir_std_entry
duke@435	779	, lir_osr_entry
duke@435	780	, lir_build_frame
duke@435	781	, lir_fpop_raw
duke@435	782	, lir_24bit_FPU
duke@435	783	, lir_reset_FPU
duke@435	784	, lir_breakpoint
duke@435	785	, lir_rtcall
duke@435	786	, lir_membar
duke@435	787	, lir_membar_acquire
duke@435	788	, lir_membar_release
duke@435	789	, lir_get_thread
duke@435	790	, end_op0
duke@435	791	, begin_op1
duke@435	792	, lir_fxch
duke@435	793	, lir_fld
duke@435	794	, lir_ffree
duke@435	795	, lir_push
duke@435	796	, lir_pop
duke@435	797	, lir_null_check
duke@435	798	, lir_return
duke@435	799	, lir_leal
duke@435	800	, lir_neg
duke@435	801	, lir_branch
duke@435	802	, lir_cond_float_branch
duke@435	803	, lir_move
duke@435	804	, lir_prefetchr
duke@435	805	, lir_prefetchw
duke@435	806	, lir_convert
duke@435	807	, lir_alloc_object
duke@435	808	, lir_monaddr
duke@435	809	, lir_roundfp
duke@435	810	, lir_safepoint
never@1813	811	, lir_unwind
duke@435	812	, end_op1
duke@435	813	, begin_op2
duke@435	814	, lir_cmp
duke@435	815	, lir_cmp_l2i
duke@435	816	, lir_ucmp_fd2i
duke@435	817	, lir_cmp_fd2i
duke@435	818	, lir_cmove
duke@435	819	, lir_add
duke@435	820	, lir_sub
duke@435	821	, lir_mul
duke@435	822	, lir_mul_strictfp
duke@435	823	, lir_div
duke@435	824	, lir_div_strictfp
duke@435	825	, lir_rem
duke@435	826	, lir_sqrt
duke@435	827	, lir_abs
duke@435	828	, lir_sin
duke@435	829	, lir_cos
duke@435	830	, lir_tan
duke@435	831	, lir_log
duke@435	832	, lir_log10
duke@435	833	, lir_logic_and
duke@435	834	, lir_logic_or
duke@435	835	, lir_logic_xor
duke@435	836	, lir_shl
duke@435	837	, lir_shr
duke@435	838	, lir_ushr
duke@435	839	, lir_alloc_array
duke@435	840	, lir_throw
duke@435	841	, lir_compare_to
duke@435	842	, end_op2
duke@435	843	, begin_op3
duke@435	844	, lir_idiv
duke@435	845	, lir_irem
duke@435	846	, end_op3
duke@435	847	, begin_opJavaCall
duke@435	848	, lir_static_call
duke@435	849	, lir_optvirtual_call
duke@435	850	, lir_icvirtual_call
duke@435	851	, lir_virtual_call
twisti@1730	852	, lir_dynamic_call
duke@435	853	, end_opJavaCall
duke@435	854	, begin_opArrayCopy
duke@435	855	, lir_arraycopy
duke@435	856	, end_opArrayCopy
duke@435	857	, begin_opLock
duke@435	858	, lir_lock
duke@435	859	, lir_unlock
duke@435	860	, end_opLock
duke@435	861	, begin_delay_slot
duke@435	862	, lir_delay_slot
duke@435	863	, end_delay_slot
duke@435	864	, begin_opTypeCheck
duke@435	865	, lir_instanceof
duke@435	866	, lir_checkcast
duke@435	867	, lir_store_check
duke@435	868	, end_opTypeCheck
duke@435	869	, begin_opCompareAndSwap
duke@435	870	, lir_cas_long
duke@435	871	, lir_cas_obj
duke@435	872	, lir_cas_int
duke@435	873	, end_opCompareAndSwap
duke@435	874	, begin_opMDOProfile
duke@435	875	, lir_profile_call
duke@435	876	, end_opMDOProfile
duke@435	877	};
duke@435	878
duke@435	879
duke@435	880	enum LIR_Condition {
duke@435	881	lir_cond_equal
duke@435	882	, lir_cond_notEqual
duke@435	883	, lir_cond_less
duke@435	884	, lir_cond_lessEqual
duke@435	885	, lir_cond_greaterEqual
duke@435	886	, lir_cond_greater
duke@435	887	, lir_cond_belowEqual
duke@435	888	, lir_cond_aboveEqual
duke@435	889	, lir_cond_always
duke@435	890	, lir_cond_unknown = -1
duke@435	891	};
duke@435	892
duke@435	893
duke@435	894	enum LIR_PatchCode {
duke@435	895	lir_patch_none,
duke@435	896	lir_patch_low,
duke@435	897	lir_patch_high,
duke@435	898	lir_patch_normal
duke@435	899	};
duke@435	900
duke@435	901
duke@435	902	enum LIR_MoveKind {
duke@435	903	lir_move_normal,
duke@435	904	lir_move_volatile,
duke@435	905	lir_move_unaligned,
duke@435	906	lir_move_max_flag
duke@435	907	};
duke@435	908
duke@435	909
duke@435	910	// --------------------------------------------------
duke@435	911	// LIR_Op
duke@435	912	// --------------------------------------------------
duke@435	913	class LIR_Op: public CompilationResourceObj {
duke@435	914	friend class LIR_OpVisitState;
duke@435	915
duke@435	916	#ifdef ASSERT
duke@435	917	private:
duke@435	918	const char * _file;
duke@435	919	int _line;
duke@435	920	#endif
duke@435	921
duke@435	922	protected:
duke@435	923	LIR_Opr _result;
duke@435	924	unsigned short _code;
duke@435	925	unsigned short _flags;
duke@435	926	CodeEmitInfo* _info;
duke@435	927	int _id; // value id for register allocation
duke@435	928	int _fpu_pop_count;
duke@435	929	Instruction* _source; // for debugging
duke@435	930
duke@435	931	static void print_condition(outputStream* out, LIR_Condition cond) PRODUCT_RETURN;
duke@435	932
duke@435	933	protected:
duke@435	934	static bool is_in_range(LIR_Code test, LIR_Code start, LIR_Code end) { return start < test && test < end; }
duke@435	935
duke@435	936	public:
duke@435	937	LIR_Op()
duke@435	938	: _result(LIR_OprFact::illegalOpr)
duke@435	939	, _code(lir_none)
duke@435	940	, _flags(0)
duke@435	941	, _info(NULL)
duke@435	942	#ifdef ASSERT
duke@435	943	, _file(NULL)
duke@435	944	, _line(0)
duke@435	945	#endif
duke@435	946	, _fpu_pop_count(0)
duke@435	947	, _source(NULL)
duke@435	948	, _id(-1) {}
duke@435	949
duke@435	950	LIR_Op(LIR_Code code, LIR_Opr result, CodeEmitInfo* info)
duke@435	951	: _result(result)
duke@435	952	, _code(code)
duke@435	953	, _flags(0)
duke@435	954	, _info(info)
duke@435	955	#ifdef ASSERT
duke@435	956	, _file(NULL)
duke@435	957	, _line(0)
duke@435	958	#endif
duke@435	959	, _fpu_pop_count(0)
duke@435	960	, _source(NULL)
duke@435	961	, _id(-1) {}
duke@435	962
duke@435	963	CodeEmitInfo* info() const { return _info; }
duke@435	964	LIR_Code code() const { return (LIR_Code)_code; }
duke@435	965	LIR_Opr result_opr() const { return _result; }
duke@435	966	void set_result_opr(LIR_Opr opr) { _result = opr; }
duke@435	967
duke@435	968	#ifdef ASSERT
duke@435	969	void set_file_and_line(const char * file, int line) {
duke@435	970	_file = file;
duke@435	971	_line = line;
duke@435	972	}
duke@435	973	#endif
duke@435	974
duke@435	975	virtual const char * name() const PRODUCT_RETURN0;
duke@435	976
duke@435	977	int id() const { return _id; }
duke@435	978	void set_id(int id) { _id = id; }
duke@435	979
duke@435	980	// FPU stack simulation helpers -- only used on Intel
duke@435	981	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	982	int fpu_pop_count() const { return _fpu_pop_count; }
duke@435	983	bool pop_fpu_stack() { return _fpu_pop_count > 0; }
duke@435	984
duke@435	985	Instruction* source() const { return _source; }
duke@435	986	void set_source(Instruction* ins) { _source = ins; }
duke@435	987
duke@435	988	virtual void emit_code(LIR_Assembler* masm) = 0;
duke@435	989	virtual void print_instr(outputStream* out) const = 0;
duke@435	990	virtual void print_on(outputStream* st) const PRODUCT_RETURN;
duke@435	991
duke@435	992	virtual LIR_OpCall* as_OpCall() { return NULL; }
duke@435	993	virtual LIR_OpJavaCall* as_OpJavaCall() { return NULL; }
duke@435	994	virtual LIR_OpLabel* as_OpLabel() { return NULL; }
duke@435	995	virtual LIR_OpDelay* as_OpDelay() { return NULL; }
duke@435	996	virtual LIR_OpLock* as_OpLock() { return NULL; }
duke@435	997	virtual LIR_OpAllocArray* as_OpAllocArray() { return NULL; }
duke@435	998	virtual LIR_OpAllocObj* as_OpAllocObj() { return NULL; }
duke@435	999	virtual LIR_OpRoundFP* as_OpRoundFP() { return NULL; }
duke@435	1000	virtual LIR_OpBranch* as_OpBranch() { return NULL; }
duke@435	1001	virtual LIR_OpRTCall* as_OpRTCall() { return NULL; }
duke@435	1002	virtual LIR_OpConvert* as_OpConvert() { return NULL; }
duke@435	1003	virtual LIR_Op0* as_Op0() { return NULL; }
duke@435	1004	virtual LIR_Op1* as_Op1() { return NULL; }
duke@435	1005	virtual LIR_Op2* as_Op2() { return NULL; }
duke@435	1006	virtual LIR_Op3* as_Op3() { return NULL; }
duke@435	1007	virtual LIR_OpArrayCopy* as_OpArrayCopy() { return NULL; }
duke@435	1008	virtual LIR_OpTypeCheck* as_OpTypeCheck() { return NULL; }
duke@435	1009	virtual LIR_OpCompareAndSwap* as_OpCompareAndSwap() { return NULL; }
duke@435	1010	virtual LIR_OpProfileCall* as_OpProfileCall() { return NULL; }
duke@435	1011
duke@435	1012	virtual void verify() const {}
duke@435	1013	};
duke@435	1014
duke@435	1015	// for calls
duke@435	1016	class LIR_OpCall: public LIR_Op {
duke@435	1017	friend class LIR_OpVisitState;
duke@435	1018
duke@435	1019	protected:
duke@435	1020	address _addr;
duke@435	1021	LIR_OprList* _arguments;
duke@435	1022	protected:
duke@435	1023	LIR_OpCall(LIR_Code code, address addr, LIR_Opr result,
duke@435	1024	LIR_OprList* arguments, CodeEmitInfo* info = NULL)
duke@435	1025	: LIR_Op(code, result, info)
duke@435	1026	, _arguments(arguments)
duke@435	1027	, _addr(addr) {}
duke@435	1028
duke@435	1029	public:
duke@435	1030	address addr() const { return _addr; }
duke@435	1031	const LIR_OprList* arguments() const { return _arguments; }
duke@435	1032	virtual LIR_OpCall* as_OpCall() { return this; }
duke@435	1033	};
duke@435	1034
duke@435	1035
duke@435	1036	// --------------------------------------------------
duke@435	1037	// LIR_OpJavaCall
duke@435	1038	// --------------------------------------------------
duke@435	1039	class LIR_OpJavaCall: public LIR_OpCall {
duke@435	1040	friend class LIR_OpVisitState;
duke@435	1041
duke@435	1042	private:
twisti@1919	1043	ciMethod* _method;
twisti@1919	1044	LIR_Opr _receiver;
twisti@1919	1045	LIR_Opr _method_handle_invoke_SP_save_opr; // Used in LIR_OpVisitState::visit to store the reference to FrameMap::method_handle_invoke_SP_save_opr.
duke@435	1046
duke@435	1047	public:
duke@435	1048	LIR_OpJavaCall(LIR_Code code, ciMethod* method,
duke@435	1049	LIR_Opr receiver, LIR_Opr result,
duke@435	1050	address addr, LIR_OprList* arguments,
duke@435	1051	CodeEmitInfo* info)
duke@435	1052	: LIR_OpCall(code, addr, result, arguments, info)
duke@435	1053	, _receiver(receiver)
twisti@1919	1054	, _method(method)
twisti@1919	1055	, _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr)
twisti@1919	1056	{ assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); }
duke@435	1057
duke@435	1058	LIR_OpJavaCall(LIR_Code code, ciMethod* method,
duke@435	1059	LIR_Opr receiver, LIR_Opr result, intptr_t vtable_offset,
duke@435	1060	LIR_OprList* arguments, CodeEmitInfo* info)
duke@435	1061	: LIR_OpCall(code, (address)vtable_offset, result, arguments, info)
duke@435	1062	, _receiver(receiver)
twisti@1919	1063	, _method(method)
twisti@1919	1064	, _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr)
twisti@1919	1065	{ assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); }
duke@435	1066
duke@435	1067	LIR_Opr receiver() const { return _receiver; }
duke@435	1068	ciMethod* method() const { return _method; }
duke@435	1069
twisti@1730	1070	// JSR 292 support.
twisti@1730	1071	bool is_invokedynamic() const { return code() == lir_dynamic_call; }
twisti@1730	1072	bool is_method_handle_invoke() const {
twisti@1730	1073	return
twisti@1730	1074	is_invokedynamic() // An invokedynamic is always a MethodHandle call site.
twisti@1730	1075	||
twisti@1730	1076	(method()->holder()->name() == ciSymbol::java_dyn_MethodHandle() &&
jrose@1862	1077	methodOopDesc::is_method_handle_invoke_name(method()->name()->sid()));
twisti@1730	1078	}
twisti@1730	1079
duke@435	1080	intptr_t vtable_offset() const {
duke@435	1081	assert(_code == lir_virtual_call, "only have vtable for real vcall");
duke@435	1082	return (intptr_t) addr();
duke@435	1083	}
duke@435	1084
duke@435	1085	virtual void emit_code(LIR_Assembler* masm);
duke@435	1086	virtual LIR_OpJavaCall* as_OpJavaCall() { return this; }
duke@435	1087	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1088	};
duke@435	1089
duke@435	1090	// --------------------------------------------------
duke@435	1091	// LIR_OpLabel
duke@435	1092	// --------------------------------------------------
duke@435	1093	// Location where a branch can continue
duke@435	1094	class LIR_OpLabel: public LIR_Op {
duke@435	1095	friend class LIR_OpVisitState;
duke@435	1096
duke@435	1097	private:
duke@435	1098	Label* _label;
duke@435	1099	public:
duke@435	1100	LIR_OpLabel(Label* lbl)
duke@435	1101	: LIR_Op(lir_label, LIR_OprFact::illegalOpr, NULL)
duke@435	1102	, _label(lbl) {}
duke@435	1103	Label* label() const { return _label; }
duke@435	1104
duke@435	1105	virtual void emit_code(LIR_Assembler* masm);
duke@435	1106	virtual LIR_OpLabel* as_OpLabel() { return this; }
duke@435	1107	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1108	};
duke@435	1109
duke@435	1110	// LIR_OpArrayCopy
duke@435	1111	class LIR_OpArrayCopy: public LIR_Op {
duke@435	1112	friend class LIR_OpVisitState;
duke@435	1113
duke@435	1114	private:
duke@435	1115	ArrayCopyStub* _stub;
duke@435	1116	LIR_Opr _src;
duke@435	1117	LIR_Opr _src_pos;
duke@435	1118	LIR_Opr _dst;
duke@435	1119	LIR_Opr _dst_pos;
duke@435	1120	LIR_Opr _length;
duke@435	1121	LIR_Opr _tmp;
duke@435	1122	ciArrayKlass* _expected_type;
duke@435	1123	int _flags;
duke@435	1124
duke@435	1125	public:
duke@435	1126	enum Flags {
duke@435	1127	src_null_check = 1 << 0,
duke@435	1128	dst_null_check = 1 << 1,
duke@435	1129	src_pos_positive_check = 1 << 2,
duke@435	1130	dst_pos_positive_check = 1 << 3,
duke@435	1131	length_positive_check = 1 << 4,
duke@435	1132	src_range_check = 1 << 5,
duke@435	1133	dst_range_check = 1 << 6,
duke@435	1134	type_check = 1 << 7,
duke@435	1135	all_flags = (1 << 8) - 1
duke@435	1136	};
duke@435	1137
duke@435	1138	LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length, LIR_Opr tmp,
duke@435	1139	ciArrayKlass* expected_type, int flags, CodeEmitInfo* info);
duke@435	1140
duke@435	1141	LIR_Opr src() const { return _src; }
duke@435	1142	LIR_Opr src_pos() const { return _src_pos; }
duke@435	1143	LIR_Opr dst() const { return _dst; }
duke@435	1144	LIR_Opr dst_pos() const { return _dst_pos; }
duke@435	1145	LIR_Opr length() const { return _length; }
duke@435	1146	LIR_Opr tmp() const { return _tmp; }
duke@435	1147	int flags() const { return _flags; }
duke@435	1148	ciArrayKlass* expected_type() const { return _expected_type; }
duke@435	1149	ArrayCopyStub* stub() const { return _stub; }
duke@435	1150
duke@435	1151	virtual void emit_code(LIR_Assembler* masm);
duke@435	1152	virtual LIR_OpArrayCopy* as_OpArrayCopy() { return this; }
duke@435	1153	void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1154	};
duke@435	1155
duke@435	1156
duke@435	1157	// --------------------------------------------------
duke@435	1158	// LIR_Op0
duke@435	1159	// --------------------------------------------------
duke@435	1160	class LIR_Op0: public LIR_Op {
duke@435	1161	friend class LIR_OpVisitState;
duke@435	1162
duke@435	1163	public:
duke@435	1164	LIR_Op0(LIR_Code code)
duke@435	1165	: LIR_Op(code, LIR_OprFact::illegalOpr, NULL) { assert(is_in_range(code, begin_op0, end_op0), "code check"); }
duke@435	1166	LIR_Op0(LIR_Code code, LIR_Opr result, CodeEmitInfo* info = NULL)
duke@435	1167	: LIR_Op(code, result, info) { assert(is_in_range(code, begin_op0, end_op0), "code check"); }
duke@435	1168
duke@435	1169	virtual void emit_code(LIR_Assembler* masm);
duke@435	1170	virtual LIR_Op0* as_Op0() { return this; }
duke@435	1171	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1172	};
duke@435	1173
duke@435	1174
duke@435	1175	// --------------------------------------------------
duke@435	1176	// LIR_Op1
duke@435	1177	// --------------------------------------------------
duke@435	1178
duke@435	1179	class LIR_Op1: public LIR_Op {
duke@435	1180	friend class LIR_OpVisitState;
duke@435	1181
duke@435	1182	protected:
duke@435	1183	LIR_Opr _opr; // input operand
duke@435	1184	BasicType _type; // Operand types
duke@435	1185	LIR_PatchCode _patch; // only required with patchin (NEEDS_CLEANUP: do we want a special instruction for patching?)
duke@435	1186
duke@435	1187	static void print_patch_code(outputStream* out, LIR_PatchCode code);
duke@435	1188
duke@435	1189	void set_kind(LIR_MoveKind kind) {
duke@435	1190	assert(code() == lir_move, "must be");
duke@435	1191	_flags = kind;
duke@435	1192	}
duke@435	1193
duke@435	1194	public:
duke@435	1195	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	1196	: LIR_Op(code, result, info)
duke@435	1197	, _opr(opr)
duke@435	1198	, _patch(patch)
duke@435	1199	, _type(type) { assert(is_in_range(code, begin_op1, end_op1), "code check"); }
duke@435	1200
duke@435	1201	LIR_Op1(LIR_Code code, LIR_Opr opr, LIR_Opr result, BasicType type, LIR_PatchCode patch, CodeEmitInfo* info, LIR_MoveKind kind)
duke@435	1202	: LIR_Op(code, result, info)
duke@435	1203	, _opr(opr)
duke@435	1204	, _patch(patch)
duke@435	1205	, _type(type) {
duke@435	1206	assert(code == lir_move, "must be");
duke@435	1207	set_kind(kind);
duke@435	1208	}
duke@435	1209
duke@435	1210	LIR_Op1(LIR_Code code, LIR_Opr opr, CodeEmitInfo* info)
duke@435	1211	: LIR_Op(code, LIR_OprFact::illegalOpr, info)
duke@435	1212	, _opr(opr)
duke@435	1213	, _patch(lir_patch_none)
duke@435	1214	, _type(T_ILLEGAL) { assert(is_in_range(code, begin_op1, end_op1), "code check"); }
duke@435	1215
duke@435	1216	LIR_Opr in_opr() const { return _opr; }
duke@435	1217	LIR_PatchCode patch_code() const { return _patch; }
duke@435	1218	BasicType type() const { return _type; }
duke@435	1219
duke@435	1220	LIR_MoveKind move_kind() const {
duke@435	1221	assert(code() == lir_move, "must be");
duke@435	1222	return (LIR_MoveKind)_flags;
duke@435	1223	}
duke@435	1224
duke@435	1225	virtual void emit_code(LIR_Assembler* masm);
duke@435	1226	virtual LIR_Op1* as_Op1() { return this; }
duke@435	1227	virtual const char * name() const PRODUCT_RETURN0;
duke@435	1228
duke@435	1229	void set_in_opr(LIR_Opr opr) { _opr = opr; }
duke@435	1230
duke@435	1231	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1232	virtual void verify() const;
duke@435	1233	};
duke@435	1234
duke@435	1235
duke@435	1236	// for runtime calls
duke@435	1237	class LIR_OpRTCall: public LIR_OpCall {
duke@435	1238	friend class LIR_OpVisitState;
duke@435	1239
duke@435	1240	private:
duke@435	1241	LIR_Opr _tmp;
duke@435	1242	public:
duke@435	1243	LIR_OpRTCall(address addr, LIR_Opr tmp,
duke@435	1244	LIR_Opr result, LIR_OprList* arguments, CodeEmitInfo* info = NULL)
duke@435	1245	: LIR_OpCall(lir_rtcall, addr, result, arguments, info)
duke@435	1246	, _tmp(tmp) {}
duke@435	1247
duke@435	1248	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1249	virtual void emit_code(LIR_Assembler* masm);
duke@435	1250	virtual LIR_OpRTCall* as_OpRTCall() { return this; }
duke@435	1251
duke@435	1252	LIR_Opr tmp() const { return _tmp; }
duke@435	1253
duke@435	1254	virtual void verify() const;
duke@435	1255	};
duke@435	1256
duke@435	1257
duke@435	1258	class LIR_OpBranch: public LIR_Op {
duke@435	1259	friend class LIR_OpVisitState;
duke@435	1260
duke@435	1261	private:
duke@435	1262	LIR_Condition _cond;
duke@435	1263	BasicType _type;
duke@435	1264	Label* _label;
duke@435	1265	BlockBegin* _block; // if this is a branch to a block, this is the block
duke@435	1266	BlockBegin* _ublock; // if this is a float-branch, this is the unorderd block
duke@435	1267	CodeStub* _stub; // if this is a branch to a stub, this is the stub
duke@435	1268
duke@435	1269	public:
duke@435	1270	LIR_OpBranch(LIR_Condition cond, Label* lbl)
duke@435	1271	: LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*) NULL)
duke@435	1272	, _cond(cond)
duke@435	1273	, _label(lbl)
duke@435	1274	, _block(NULL)
duke@435	1275	, _ublock(NULL)
duke@435	1276	, _stub(NULL) { }
duke@435	1277
duke@435	1278	LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block);
duke@435	1279	LIR_OpBranch(LIR_Condition cond, BasicType type, CodeStub* stub);
duke@435	1280
duke@435	1281	// for unordered comparisons
duke@435	1282	LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* ublock);
duke@435	1283
duke@435	1284	LIR_Condition cond() const { return _cond; }
duke@435	1285	BasicType type() const { return _type; }
duke@435	1286	Label* label() const { return _label; }
duke@435	1287	BlockBegin* block() const { return _block; }
duke@435	1288	BlockBegin* ublock() const { return _ublock; }
duke@435	1289	CodeStub* stub() const { return _stub; }
duke@435	1290
duke@435	1291	void change_block(BlockBegin* b);
duke@435	1292	void change_ublock(BlockBegin* b);
duke@435	1293	void negate_cond();
duke@435	1294
duke@435	1295	virtual void emit_code(LIR_Assembler* masm);
duke@435	1296	virtual LIR_OpBranch* as_OpBranch() { return this; }
duke@435	1297	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1298	};
duke@435	1299
duke@435	1300
duke@435	1301	class ConversionStub;
duke@435	1302
duke@435	1303	class LIR_OpConvert: public LIR_Op1 {
duke@435	1304	friend class LIR_OpVisitState;
duke@435	1305
duke@435	1306	private:
duke@435	1307	Bytecodes::Code _bytecode;
duke@435	1308	ConversionStub* _stub;
duke@435	1309
duke@435	1310	public:
duke@435	1311	LIR_OpConvert(Bytecodes::Code code, LIR_Opr opr, LIR_Opr result, ConversionStub* stub)
duke@435	1312	: LIR_Op1(lir_convert, opr, result)
duke@435	1313	, _stub(stub)
duke@435	1314	, _bytecode(code) {}
duke@435	1315
duke@435	1316	Bytecodes::Code bytecode() const { return _bytecode; }
duke@435	1317	ConversionStub* stub() const { return _stub; }
duke@435	1318
duke@435	1319	virtual void emit_code(LIR_Assembler* masm);
duke@435	1320	virtual LIR_OpConvert* as_OpConvert() { return this; }
duke@435	1321	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1322
duke@435	1323	static void print_bytecode(outputStream* out, Bytecodes::Code code) PRODUCT_RETURN;
duke@435	1324	};
duke@435	1325
duke@435	1326
duke@435	1327	// LIR_OpAllocObj
duke@435	1328	class LIR_OpAllocObj : public LIR_Op1 {
duke@435	1329	friend class LIR_OpVisitState;
duke@435	1330
duke@435	1331	private:
duke@435	1332	LIR_Opr _tmp1;
duke@435	1333	LIR_Opr _tmp2;
duke@435	1334	LIR_Opr _tmp3;
duke@435	1335	LIR_Opr _tmp4;
duke@435	1336	int _hdr_size;
duke@435	1337	int _obj_size;
duke@435	1338	CodeStub* _stub;
duke@435	1339	bool _init_check;
duke@435	1340
duke@435	1341	public:
duke@435	1342	LIR_OpAllocObj(LIR_Opr klass, LIR_Opr result,
duke@435	1343	LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
duke@435	1344	int hdr_size, int obj_size, bool init_check, CodeStub* stub)
duke@435	1345	: LIR_Op1(lir_alloc_object, klass, result)
duke@435	1346	, _tmp1(t1)
duke@435	1347	, _tmp2(t2)
duke@435	1348	, _tmp3(t3)
duke@435	1349	, _tmp4(t4)
duke@435	1350	, _hdr_size(hdr_size)
duke@435	1351	, _obj_size(obj_size)
duke@435	1352	, _init_check(init_check)
duke@435	1353	, _stub(stub) { }
duke@435	1354
duke@435	1355	LIR_Opr klass() const { return in_opr(); }
duke@435	1356	LIR_Opr obj() const { return result_opr(); }
duke@435	1357	LIR_Opr tmp1() const { return _tmp1; }
duke@435	1358	LIR_Opr tmp2() const { return _tmp2; }
duke@435	1359	LIR_Opr tmp3() const { return _tmp3; }
duke@435	1360	LIR_Opr tmp4() const { return _tmp4; }
duke@435	1361	int header_size() const { return _hdr_size; }
duke@435	1362	int object_size() const { return _obj_size; }
duke@435	1363	bool init_check() const { return _init_check; }
duke@435	1364	CodeStub* stub() const { return _stub; }
duke@435	1365
duke@435	1366	virtual void emit_code(LIR_Assembler* masm);
duke@435	1367	virtual LIR_OpAllocObj * as_OpAllocObj () { return this; }
duke@435	1368	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1369	};
duke@435	1370
duke@435	1371
duke@435	1372	// LIR_OpRoundFP
duke@435	1373	class LIR_OpRoundFP : public LIR_Op1 {
duke@435	1374	friend class LIR_OpVisitState;
duke@435	1375
duke@435	1376	private:
duke@435	1377	LIR_Opr _tmp;
duke@435	1378
duke@435	1379	public:
duke@435	1380	LIR_OpRoundFP(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result)
duke@435	1381	: LIR_Op1(lir_roundfp, reg, result)
duke@435	1382	, _tmp(stack_loc_temp) {}
duke@435	1383
duke@435	1384	LIR_Opr tmp() const { return _tmp; }
duke@435	1385	virtual LIR_OpRoundFP* as_OpRoundFP() { return this; }
duke@435	1386	void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1387	};
duke@435	1388
duke@435	1389	// LIR_OpTypeCheck
duke@435	1390	class LIR_OpTypeCheck: public LIR_Op {
duke@435	1391	friend class LIR_OpVisitState;
duke@435	1392
duke@435	1393	private:
duke@435	1394	LIR_Opr _object;
duke@435	1395	LIR_Opr _array;
duke@435	1396	ciKlass* _klass;
duke@435	1397	LIR_Opr _tmp1;
duke@435	1398	LIR_Opr _tmp2;
duke@435	1399	LIR_Opr _tmp3;
duke@435	1400	bool _fast_check;
duke@435	1401	CodeEmitInfo* _info_for_patch;
duke@435	1402	CodeEmitInfo* _info_for_exception;
duke@435	1403	CodeStub* _stub;
duke@435	1404	// Helpers for Tier1UpdateMethodData
duke@435	1405	ciMethod* _profiled_method;
duke@435	1406	int _profiled_bci;
duke@435	1407
duke@435	1408	public:
duke@435	1409	LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
duke@435	1410	LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
duke@435	1411	CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
duke@435	1412	ciMethod* profiled_method, int profiled_bci);
duke@435	1413	LIR_OpTypeCheck(LIR_Code code, LIR_Opr object, LIR_Opr array,
duke@435	1414	LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception,
duke@435	1415	ciMethod* profiled_method, int profiled_bci);
duke@435	1416
duke@435	1417	LIR_Opr object() const { return _object; }
duke@435	1418	LIR_Opr array() const { assert(code() == lir_store_check, "not valid"); return _array; }
duke@435	1419	LIR_Opr tmp1() const { return _tmp1; }
duke@435	1420	LIR_Opr tmp2() const { return _tmp2; }
duke@435	1421	LIR_Opr tmp3() const { return _tmp3; }
duke@435	1422	ciKlass* klass() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _klass; }
duke@435	1423	bool fast_check() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _fast_check; }
duke@435	1424	CodeEmitInfo* info_for_patch() const { return _info_for_patch; }
duke@435	1425	CodeEmitInfo* info_for_exception() const { return _info_for_exception; }
duke@435	1426	CodeStub* stub() const { return _stub; }
duke@435	1427
duke@435	1428	// methodDataOop profiling
duke@435	1429	ciMethod* profiled_method() { return _profiled_method; }
duke@435	1430	int profiled_bci() { return _profiled_bci; }
duke@435	1431
duke@435	1432	virtual void emit_code(LIR_Assembler* masm);
duke@435	1433	virtual LIR_OpTypeCheck* as_OpTypeCheck() { return this; }
duke@435	1434	void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1435	};
duke@435	1436
duke@435	1437	// LIR_Op2
duke@435	1438	class LIR_Op2: public LIR_Op {
duke@435	1439	friend class LIR_OpVisitState;
duke@435	1440
duke@435	1441	int _fpu_stack_size; // for sin/cos implementation on Intel
duke@435	1442
duke@435	1443	protected:
duke@435	1444	LIR_Opr _opr1;
duke@435	1445	LIR_Opr _opr2;
duke@435	1446	BasicType _type;
duke@435	1447	LIR_Opr _tmp;
duke@435	1448	LIR_Condition _condition;
duke@435	1449
duke@435	1450	void verify() const;
duke@435	1451
duke@435	1452	public:
duke@435	1453	LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, CodeEmitInfo* info = NULL)
duke@435	1454	: LIR_Op(code, LIR_OprFact::illegalOpr, info)
duke@435	1455	, _opr1(opr1)
duke@435	1456	, _opr2(opr2)
duke@435	1457	, _type(T_ILLEGAL)
duke@435	1458	, _condition(condition)
duke@435	1459	, _fpu_stack_size(0)
duke@435	1460	, _tmp(LIR_OprFact::illegalOpr) {
duke@435	1461	assert(code == lir_cmp, "code check");
duke@435	1462	}
duke@435	1463
duke@435	1464	LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result)
duke@435	1465	: LIR_Op(code, result, NULL)
duke@435	1466	, _opr1(opr1)
duke@435	1467	, _opr2(opr2)
duke@435	1468	, _type(T_ILLEGAL)
duke@435	1469	, _condition(condition)
duke@435	1470	, _fpu_stack_size(0)
duke@435	1471	, _tmp(LIR_OprFact::illegalOpr) {
duke@435	1472	assert(code == lir_cmove, "code check");
duke@435	1473	}
duke@435	1474
duke@435	1475	LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result = LIR_OprFact::illegalOpr,
duke@435	1476	CodeEmitInfo* info = NULL, BasicType type = T_ILLEGAL)
duke@435	1477	: LIR_Op(code, result, info)
duke@435	1478	, _opr1(opr1)
duke@435	1479	, _opr2(opr2)
duke@435	1480	, _type(type)
duke@435	1481	, _condition(lir_cond_unknown)
duke@435	1482	, _fpu_stack_size(0)
duke@435	1483	, _tmp(LIR_OprFact::illegalOpr) {
duke@435	1484	assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check");
duke@435	1485	}
duke@435	1486
duke@435	1487	LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, LIR_Opr tmp)
duke@435	1488	: LIR_Op(code, result, NULL)
duke@435	1489	, _opr1(opr1)
duke@435	1490	, _opr2(opr2)
duke@435	1491	, _type(T_ILLEGAL)
duke@435	1492	, _condition(lir_cond_unknown)
duke@435	1493	, _fpu_stack_size(0)
duke@435	1494	, _tmp(tmp) {
duke@435	1495	assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check");
duke@435	1496	}
duke@435	1497
duke@435	1498	LIR_Opr in_opr1() const { return _opr1; }
duke@435	1499	LIR_Opr in_opr2() const { return _opr2; }
duke@435	1500	BasicType type() const { return _type; }
duke@435	1501	LIR_Opr tmp_opr() const { return _tmp; }
duke@435	1502	LIR_Condition condition() const {
duke@435	1503	assert(code() == lir_cmp || code() == lir_cmove, "only valid for cmp and cmove"); return _condition;
duke@435	1504	}
duke@435	1505
duke@435	1506	void set_fpu_stack_size(int size) { _fpu_stack_size = size; }
duke@435	1507	int fpu_stack_size() const { return _fpu_stack_size; }
duke@435	1508
duke@435	1509	void set_in_opr1(LIR_Opr opr) { _opr1 = opr; }
duke@435	1510	void set_in_opr2(LIR_Opr opr) { _opr2 = opr; }
duke@435	1511
duke@435	1512	virtual void emit_code(LIR_Assembler* masm);
duke@435	1513	virtual LIR_Op2* as_Op2() { return this; }
duke@435	1514	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1515	};
duke@435	1516
duke@435	1517	class LIR_OpAllocArray : public LIR_Op {
duke@435	1518	friend class LIR_OpVisitState;
duke@435	1519
duke@435	1520	private:
duke@435	1521	LIR_Opr _klass;
duke@435	1522	LIR_Opr _len;
duke@435	1523	LIR_Opr _tmp1;
duke@435	1524	LIR_Opr _tmp2;
duke@435	1525	LIR_Opr _tmp3;
duke@435	1526	LIR_Opr _tmp4;
duke@435	1527	BasicType _type;
duke@435	1528	CodeStub* _stub;
duke@435	1529
duke@435	1530	public:
duke@435	1531	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	1532	: LIR_Op(lir_alloc_array, result, NULL)
duke@435	1533	, _klass(klass)
duke@435	1534	, _len(len)
duke@435	1535	, _tmp1(t1)
duke@435	1536	, _tmp2(t2)
duke@435	1537	, _tmp3(t3)
duke@435	1538	, _tmp4(t4)
duke@435	1539	, _type(type)
duke@435	1540	, _stub(stub) {}
duke@435	1541
duke@435	1542	LIR_Opr klass() const { return _klass; }
duke@435	1543	LIR_Opr len() const { return _len; }
duke@435	1544	LIR_Opr obj() const { return result_opr(); }
duke@435	1545	LIR_Opr tmp1() const { return _tmp1; }
duke@435	1546	LIR_Opr tmp2() const { return _tmp2; }
duke@435	1547	LIR_Opr tmp3() const { return _tmp3; }
duke@435	1548	LIR_Opr tmp4() const { return _tmp4; }
duke@435	1549	BasicType type() const { return _type; }
duke@435	1550	CodeStub* stub() const { return _stub; }
duke@435	1551
duke@435	1552	virtual void emit_code(LIR_Assembler* masm);
duke@435	1553	virtual LIR_OpAllocArray * as_OpAllocArray () { return this; }
duke@435	1554	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1555	};
duke@435	1556
duke@435	1557
duke@435	1558	class LIR_Op3: public LIR_Op {
duke@435	1559	friend class LIR_OpVisitState;
duke@435	1560
duke@435	1561	private:
duke@435	1562	LIR_Opr _opr1;
duke@435	1563	LIR_Opr _opr2;
duke@435	1564	LIR_Opr _opr3;
duke@435	1565	public:
duke@435	1566	LIR_Op3(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr opr3, LIR_Opr result, CodeEmitInfo* info = NULL)
duke@435	1567	: LIR_Op(code, result, info)
duke@435	1568	, _opr1(opr1)
duke@435	1569	, _opr2(opr2)
duke@435	1570	, _opr3(opr3) { assert(is_in_range(code, begin_op3, end_op3), "code check"); }
duke@435	1571	LIR_Opr in_opr1() const { return _opr1; }
duke@435	1572	LIR_Opr in_opr2() const { return _opr2; }
duke@435	1573	LIR_Opr in_opr3() const { return _opr3; }
duke@435	1574
duke@435	1575	virtual void emit_code(LIR_Assembler* masm);
duke@435	1576	virtual LIR_Op3* as_Op3() { return this; }
duke@435	1577	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1578	};
duke@435	1579
duke@435	1580
duke@435	1581	//--------------------------------
duke@435	1582	class LabelObj: public CompilationResourceObj {
duke@435	1583	private:
duke@435	1584	Label _label;
duke@435	1585	public:
duke@435	1586	LabelObj() {}
duke@435	1587	Label* label() { return &_label; }
duke@435	1588	};
duke@435	1589
duke@435	1590
duke@435	1591	class LIR_OpLock: public LIR_Op {
duke@435	1592	friend class LIR_OpVisitState;
duke@435	1593
duke@435	1594	private:
duke@435	1595	LIR_Opr _hdr;
duke@435	1596	LIR_Opr _obj;
duke@435	1597	LIR_Opr _lock;
duke@435	1598	LIR_Opr _scratch;
duke@435	1599	CodeStub* _stub;
duke@435	1600	public:
duke@435	1601	LIR_OpLock(LIR_Code code, LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info)
duke@435	1602	: LIR_Op(code, LIR_OprFact::illegalOpr, info)
duke@435	1603	, _hdr(hdr)
duke@435	1604	, _obj(obj)
duke@435	1605	, _lock(lock)
duke@435	1606	, _scratch(scratch)
duke@435	1607	, _stub(stub) {}
duke@435	1608
duke@435	1609	LIR_Opr hdr_opr() const { return _hdr; }
duke@435	1610	LIR_Opr obj_opr() const { return _obj; }
duke@435	1611	LIR_Opr lock_opr() const { return _lock; }
duke@435	1612	LIR_Opr scratch_opr() const { return _scratch; }
duke@435	1613	CodeStub* stub() const { return _stub; }
duke@435	1614
duke@435	1615	virtual void emit_code(LIR_Assembler* masm);
duke@435	1616	virtual LIR_OpLock* as_OpLock() { return this; }
duke@435	1617	void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1618	};
duke@435	1619
duke@435	1620
duke@435	1621	class LIR_OpDelay: public LIR_Op {
duke@435	1622	friend class LIR_OpVisitState;
duke@435	1623
duke@435	1624	private:
duke@435	1625	LIR_Op* _op;
duke@435	1626
duke@435	1627	public:
duke@435	1628	LIR_OpDelay(LIR_Op* op, CodeEmitInfo* info):
duke@435	1629	LIR_Op(lir_delay_slot, LIR_OprFact::illegalOpr, info),
duke@435	1630	_op(op) {
duke@435	1631	assert(op->code() == lir_nop || LIRFillDelaySlots, "should be filling with nops");
duke@435	1632	}
duke@435	1633	virtual void emit_code(LIR_Assembler* masm);
duke@435	1634	virtual LIR_OpDelay* as_OpDelay() { return this; }
duke@435	1635	void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1636	LIR_Op* delay_op() const { return _op; }
duke@435	1637	CodeEmitInfo* call_info() const { return info(); }
duke@435	1638	};
duke@435	1639
duke@435	1640
duke@435	1641	// LIR_OpCompareAndSwap
duke@435	1642	class LIR_OpCompareAndSwap : public LIR_Op {
duke@435	1643	friend class LIR_OpVisitState;
duke@435	1644
duke@435	1645	private:
duke@435	1646	LIR_Opr _addr;
duke@435	1647	LIR_Opr _cmp_value;
duke@435	1648	LIR_Opr _new_value;
duke@435	1649	LIR_Opr _tmp1;
duke@435	1650	LIR_Opr _tmp2;
duke@435	1651
duke@435	1652	public:
duke@435	1653	LIR_OpCompareAndSwap(LIR_Code code, LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, LIR_Opr t1, LIR_Opr t2)
duke@435	1654	: LIR_Op(code, LIR_OprFact::illegalOpr, NULL) // no result, no info
duke@435	1655	, _addr(addr)
duke@435	1656	, _cmp_value(cmp_value)
duke@435	1657	, _new_value(new_value)
duke@435	1658	, _tmp1(t1)
duke@435	1659	, _tmp2(t2) { }
duke@435	1660
duke@435	1661	LIR_Opr addr() const { return _addr; }
duke@435	1662	LIR_Opr cmp_value() const { return _cmp_value; }
duke@435	1663	LIR_Opr new_value() const { return _new_value; }
duke@435	1664	LIR_Opr tmp1() const { return _tmp1; }
duke@435	1665	LIR_Opr tmp2() const { return _tmp2; }
duke@435	1666
duke@435	1667	virtual void emit_code(LIR_Assembler* masm);
duke@435	1668	virtual LIR_OpCompareAndSwap * as_OpCompareAndSwap () { return this; }
duke@435	1669	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1670	};
duke@435	1671
duke@435	1672	// LIR_OpProfileCall
duke@435	1673	class LIR_OpProfileCall : public LIR_Op {
duke@435	1674	friend class LIR_OpVisitState;
duke@435	1675
duke@435	1676	private:
duke@435	1677	ciMethod* _profiled_method;
duke@435	1678	int _profiled_bci;
duke@435	1679	LIR_Opr _mdo;
duke@435	1680	LIR_Opr _recv;
duke@435	1681	LIR_Opr _tmp1;
duke@435	1682	ciKlass* _known_holder;
duke@435	1683
duke@435	1684	public:
duke@435	1685	// Destroys recv
duke@435	1686	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	1687	: LIR_Op(code, LIR_OprFact::illegalOpr, NULL) // no result, no info
duke@435	1688	, _profiled_method(profiled_method)
duke@435	1689	, _profiled_bci(profiled_bci)
duke@435	1690	, _mdo(mdo)
duke@435	1691	, _recv(recv)
duke@435	1692	, _tmp1(t1)
duke@435	1693	, _known_holder(known_holder) { }
duke@435	1694
duke@435	1695	ciMethod* profiled_method() const { return _profiled_method; }
duke@435	1696	int profiled_bci() const { return _profiled_bci; }
duke@435	1697	LIR_Opr mdo() const { return _mdo; }
duke@435	1698	LIR_Opr recv() const { return _recv; }
duke@435	1699	LIR_Opr tmp1() const { return _tmp1; }
duke@435	1700	ciKlass* known_holder() const { return _known_holder; }
duke@435	1701
duke@435	1702	virtual void emit_code(LIR_Assembler* masm);
duke@435	1703	virtual LIR_OpProfileCall* as_OpProfileCall() { return this; }
duke@435	1704	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1705	};
duke@435	1706
duke@435	1707
duke@435	1708	class LIR_InsertionBuffer;
duke@435	1709
duke@435	1710	//--------------------------------LIR_List---------------------------------------------------
duke@435	1711	// Maintains a list of LIR instructions (one instance of LIR_List per basic block)
duke@435	1712	// The LIR instructions are appended by the LIR_List class itself;
duke@435	1713	//
duke@435	1714	// Notes:
duke@435	1715	// - all offsets are(should be) in bytes
duke@435	1716	// - local positions are specified with an offset, with offset 0 being local 0
duke@435	1717
duke@435	1718	class LIR_List: public CompilationResourceObj {
duke@435	1719	private:
duke@435	1720	LIR_OpList _operations;
duke@435	1721
duke@435	1722	Compilation* _compilation;
duke@435	1723	#ifndef PRODUCT
duke@435	1724	BlockBegin* _block;
duke@435	1725	#endif
duke@435	1726	#ifdef ASSERT
duke@435	1727	const char * _file;
duke@435	1728	int _line;
duke@435	1729	#endif
duke@435	1730
duke@435	1731	void append(LIR_Op* op) {
duke@435	1732	if (op->source() == NULL)
duke@435	1733	op->set_source(_compilation->current_instruction());
duke@435	1734	#ifndef PRODUCT
duke@435	1735	if (PrintIRWithLIR) {
duke@435	1736	_compilation->maybe_print_current_instruction();
duke@435	1737	op->print(); tty->cr();
duke@435	1738	}
duke@435	1739	#endif // PRODUCT
duke@435	1740
duke@435	1741	_operations.append(op);
duke@435	1742
duke@435	1743	#ifdef ASSERT
duke@435	1744	op->verify();
duke@435	1745	op->set_file_and_line(_file, _line);
duke@435	1746	_file = NULL;
duke@435	1747	_line = 0;
duke@435	1748	#endif
duke@435	1749	}
duke@435	1750
duke@435	1751	public:
duke@435	1752	LIR_List(Compilation* compilation, BlockBegin* block = NULL);
duke@435	1753
duke@435	1754	#ifdef ASSERT
duke@435	1755	void set_file_and_line(const char * file, int line);
duke@435	1756	#endif
duke@435	1757
duke@435	1758	//---------- accessors ---------------
duke@435	1759	LIR_OpList* instructions_list() { return &_operations; }
duke@435	1760	int length() const { return _operations.length(); }
duke@435	1761	LIR_Op* at(int i) const { return _operations.at(i); }
duke@435	1762
duke@435	1763	NOT_PRODUCT(BlockBegin* block() const { return _block; });
duke@435	1764
duke@435	1765	// insert LIR_Ops in buffer to right places in LIR_List
duke@435	1766	void append(LIR_InsertionBuffer* buffer);
duke@435	1767
duke@435	1768	//---------- mutators ---------------
duke@435	1769	void insert_before(int i, LIR_List* op_list) { _operations.insert_before(i, op_list->instructions_list()); }
duke@435	1770	void insert_before(int i, LIR_Op* op) { _operations.insert_before(i, op); }
duke@435	1771
duke@435	1772	//---------- printing -------------
duke@435	1773	void print_instructions() PRODUCT_RETURN;
duke@435	1774
duke@435	1775
duke@435	1776	//---------- instructions -------------
duke@435	1777	void call_opt_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
duke@435	1778	address dest, LIR_OprList* arguments,
duke@435	1779	CodeEmitInfo* info) {
duke@435	1780	append(new LIR_OpJavaCall(lir_optvirtual_call, method, receiver, result, dest, arguments, info));
duke@435	1781	}
duke@435	1782	void call_static(ciMethod* method, LIR_Opr result,
duke@435	1783	address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
duke@435	1784	append(new LIR_OpJavaCall(lir_static_call, method, LIR_OprFact::illegalOpr, result, dest, arguments, info));
duke@435	1785	}
duke@435	1786	void call_icvirtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
duke@435	1787	address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
duke@435	1788	append(new LIR_OpJavaCall(lir_icvirtual_call, method, receiver, result, dest, arguments, info));
duke@435	1789	}
duke@435	1790	void call_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
duke@435	1791	intptr_t vtable_offset, LIR_OprList* arguments, CodeEmitInfo* info) {
duke@435	1792	append(new LIR_OpJavaCall(lir_virtual_call, method, receiver, result, vtable_offset, arguments, info));
duke@435	1793	}
twisti@1730	1794	void call_dynamic(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
twisti@1730	1795	address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
twisti@1730	1796	append(new LIR_OpJavaCall(lir_dynamic_call, method, receiver, result, dest, arguments, info));
twisti@1730	1797	}
duke@435	1798
duke@435	1799	void get_thread(LIR_Opr result) { append(new LIR_Op0(lir_get_thread, result)); }
duke@435	1800	void word_align() { append(new LIR_Op0(lir_word_align)); }
duke@435	1801	void membar() { append(new LIR_Op0(lir_membar)); }
duke@435	1802	void membar_acquire() { append(new LIR_Op0(lir_membar_acquire)); }
duke@435	1803	void membar_release() { append(new LIR_Op0(lir_membar_release)); }
duke@435	1804
duke@435	1805	void nop() { append(new LIR_Op0(lir_nop)); }
duke@435	1806	void build_frame() { append(new LIR_Op0(lir_build_frame)); }
duke@435	1807
duke@435	1808	void std_entry(LIR_Opr receiver) { append(new LIR_Op0(lir_std_entry, receiver)); }
duke@435	1809	void osr_entry(LIR_Opr osrPointer) { append(new LIR_Op0(lir_osr_entry, osrPointer)); }
duke@435	1810
duke@435	1811	void branch_destination(Label* lbl) { append(new LIR_OpLabel(lbl)); }
duke@435	1812
duke@435	1813	void negate(LIR_Opr from, LIR_Opr to) { append(new LIR_Op1(lir_neg, from, to)); }
duke@435	1814	void leal(LIR_Opr from, LIR_Opr result_reg) { append(new LIR_Op1(lir_leal, from, result_reg)); }
duke@435	1815
duke@435	1816	// result is a stack location for old backend and vreg for UseLinearScan
duke@435	1817	// stack_loc_temp is an illegal register for old backend
duke@435	1818	void roundfp(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result) { append(new LIR_OpRoundFP(reg, stack_loc_temp, result)); }
duke@435	1819	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	1820	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	1821	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	1822	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	1823	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	1824	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	1825
duke@435	1826	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	1827
duke@435	1828	void oop2reg (jobject o, LIR_Opr reg) { append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o), reg)); }
duke@435	1829	void oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info);
duke@435	1830
duke@435	1831	void return_op(LIR_Opr result) { append(new LIR_Op1(lir_return, result)); }
duke@435	1832
duke@435	1833	void safepoint(LIR_Opr tmp, CodeEmitInfo* info) { append(new LIR_Op1(lir_safepoint, tmp, info)); }
duke@435	1834
duke@435	1835	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	1836
duke@435	1837	void logical_and (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_and, left, right, dst)); }
duke@435	1838	void logical_or (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_or, left, right, dst)); }
duke@435	1839	void logical_xor (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_xor, left, right, dst)); }
duke@435	1840
duke@435	1841	void null_check(LIR_Opr opr, CodeEmitInfo* info) { append(new LIR_Op1(lir_null_check, opr, info)); }
never@1813	1842	void throw_exception(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) {
never@1813	1843	append(new LIR_Op2(lir_throw, exceptionPC, exceptionOop, LIR_OprFact::illegalOpr, info));
never@1813	1844	}
never@1813	1845	void unwind_exception(LIR_Opr exceptionOop) {
never@1813	1846	append(new LIR_Op1(lir_unwind, exceptionOop));
never@1813	1847	}
duke@435	1848
duke@435	1849	void compare_to (LIR_Opr left, LIR_Opr right, LIR_Opr dst) {
duke@435	1850	append(new LIR_Op2(lir_compare_to, left, right, dst));
duke@435	1851	}
duke@435	1852
duke@435	1853	void push(LIR_Opr opr) { append(new LIR_Op1(lir_push, opr)); }
duke@435	1854	void pop(LIR_Opr reg) { append(new LIR_Op1(lir_pop, reg)); }
duke@435	1855
duke@435	1856	void cmp(LIR_Condition condition, LIR_Opr left, LIR_Opr right, CodeEmitInfo* info = NULL) {
duke@435	1857	append(new LIR_Op2(lir_cmp, condition, left, right, info));
duke@435	1858	}
duke@435	1859	void cmp(LIR_Condition condition, LIR_Opr left, int right, CodeEmitInfo* info = NULL) {
duke@435	1860	cmp(condition, left, LIR_OprFact::intConst(right), info);
duke@435	1861	}
duke@435	1862
duke@435	1863	void cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info);
duke@435	1864	void cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info);
duke@435	1865
duke@435	1866	void cmove(LIR_Condition condition, LIR_Opr src1, LIR_Opr src2, LIR_Opr dst) {
duke@435	1867	append(new LIR_Op2(lir_cmove, condition, src1, src2, dst));
duke@435	1868	}
duke@435	1869
duke@435	1870	void cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, LIR_Opr t1, LIR_Opr t2);
duke@435	1871	void cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, LIR_Opr t1, LIR_Opr t2);
duke@435	1872	void cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, LIR_Opr t1, LIR_Opr t2);
duke@435	1873
duke@435	1874	void abs (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_abs , from, tmp, to)); }
duke@435	1875	void sqrt(LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_sqrt, from, tmp, to)); }
never@1388	1876	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	1877	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	1878	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	1879	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	1880	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	1881
duke@435	1882	void add (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_add, left, right, res)); }
duke@435	1883	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	1884	void mul (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_mul, left, right, res)); }
duke@435	1885	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	1886	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	1887	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	1888	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	1889
duke@435	1890	void volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
duke@435	1891	void volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code);
duke@435	1892
duke@435	1893	void load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none);
duke@435	1894
duke@435	1895	void prefetch(LIR_Address* addr, bool is_store);
duke@435	1896
duke@435	1897	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	1898	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	1899	void store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none);
duke@435	1900	void volatile_store_mem_reg(LIR_Opr src, LIR_Address* address, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
duke@435	1901	void volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code);
duke@435	1902
duke@435	1903	void idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
duke@435	1904	void idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
duke@435	1905	void irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
duke@435	1906	void irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
duke@435	1907
duke@435	1908	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	1909	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	1910
duke@435	1911	// jump is an unconditional branch
duke@435	1912	void jump(BlockBegin* block) {
duke@435	1913	append(new LIR_OpBranch(lir_cond_always, T_ILLEGAL, block));
duke@435	1914	}
duke@435	1915	void jump(CodeStub* stub) {
duke@435	1916	append(new LIR_OpBranch(lir_cond_always, T_ILLEGAL, stub));
duke@435	1917	}
duke@435	1918	void branch(LIR_Condition cond, Label* lbl) { append(new LIR_OpBranch(cond, lbl)); }
duke@435	1919	void branch(LIR_Condition cond, BasicType type, BlockBegin* block) {
duke@435	1920	assert(type != T_FLOAT && type != T_DOUBLE, "no fp comparisons");
duke@435	1921	append(new LIR_OpBranch(cond, type, block));
duke@435	1922	}
duke@435	1923	void branch(LIR_Condition cond, BasicType type, CodeStub* stub) {
duke@435	1924	assert(type != T_FLOAT && type != T_DOUBLE, "no fp comparisons");
duke@435	1925	append(new LIR_OpBranch(cond, type, stub));
duke@435	1926	}
duke@435	1927	void branch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* unordered) {
duke@435	1928	assert(type == T_FLOAT || type == T_DOUBLE, "fp comparisons only");
duke@435	1929	append(new LIR_OpBranch(cond, type, block, unordered));
duke@435	1930	}
duke@435	1931
duke@435	1932	void shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
duke@435	1933	void shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
duke@435	1934	void unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
duke@435	1935
duke@435	1936	void shift_left(LIR_Opr value, int count, LIR_Opr dst) { shift_left(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
duke@435	1937	void shift_right(LIR_Opr value, int count, LIR_Opr dst) { shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
duke@435	1938	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	1939
duke@435	1940	void lcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_cmp_l2i, left, right, dst)); }
duke@435	1941	void fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less);
duke@435	1942
duke@435	1943	void call_runtime_leaf(address routine, LIR_Opr tmp, LIR_Opr result, LIR_OprList* arguments) {
duke@435	1944	append(new LIR_OpRTCall(routine, tmp, result, arguments));
duke@435	1945	}
duke@435	1946
duke@435	1947	void call_runtime(address routine, LIR_Opr tmp, LIR_Opr result,
duke@435	1948	LIR_OprList* arguments, CodeEmitInfo* info) {
duke@435	1949	append(new LIR_OpRTCall(routine, tmp, result, arguments, info));
duke@435	1950	}
duke@435	1951
duke@435	1952	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	1953	void unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, CodeStub* stub);
duke@435	1954	void lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info);
duke@435	1955
duke@435	1956	void set_24bit_fpu() { append(new LIR_Op0(lir_24bit_FPU )); }
duke@435	1957	void restore_fpu() { append(new LIR_Op0(lir_reset_FPU )); }
duke@435	1958	void breakpoint() { append(new LIR_Op0(lir_breakpoint)); }
duke@435	1959
duke@435	1960	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	1961
duke@435	1962	void fpop_raw() { append(new LIR_Op0(lir_fpop_raw)); }
duke@435	1963
duke@435	1964	void checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
duke@435	1965	LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
duke@435	1966	CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
duke@435	1967	ciMethod* profiled_method, int profiled_bci);
duke@435	1968	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	1969	void store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception);
duke@435	1970
duke@435	1971	// methodDataOop profiling
duke@435	1972	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	1973	};
duke@435	1974
duke@435	1975	void print_LIR(BlockList* blocks);
duke@435	1976
duke@435	1977	class LIR_InsertionBuffer : public CompilationResourceObj {
duke@435	1978	private:
duke@435	1979	LIR_List* _lir; // the lir list where ops of this buffer should be inserted later (NULL when uninitialized)
duke@435	1980
duke@435	1981	// list of insertion points. index and count are stored alternately:
duke@435	1982	// _index_and_count[i * 2]: the index into lir list where "count" ops should be inserted
duke@435	1983	// _index_and_count[i * 2 + 1]: the number of ops to be inserted at index
duke@435	1984	intStack _index_and_count;
duke@435	1985
duke@435	1986	// the LIR_Ops to be inserted
duke@435	1987	LIR_OpList _ops;
duke@435	1988
duke@435	1989	void append_new(int index, int count) { _index_and_count.append(index); _index_and_count.append(count); }
duke@435	1990	void set_index_at(int i, int value) { _index_and_count.at_put((i << 1), value); }
duke@435	1991	void set_count_at(int i, int value) { _index_and_count.at_put((i << 1) + 1, value); }
duke@435	1992
duke@435	1993	#ifdef ASSERT
duke@435	1994	void verify();
duke@435	1995	#endif
duke@435	1996	public:
duke@435	1997	LIR_InsertionBuffer() : _lir(NULL), _index_and_count(8), _ops(8) { }
duke@435	1998
duke@435	1999	// must be called before using the insertion buffer
duke@435	2000	void init(LIR_List* lir) { assert(!initialized(), "already initialized"); _lir = lir; _index_and_count.clear(); _ops.clear(); }
duke@435	2001	bool initialized() const { return _lir != NULL; }
duke@435	2002	// called automatically when the buffer is appended to the LIR_List
duke@435	2003	void finish() { _lir = NULL; }
duke@435	2004
duke@435	2005	// accessors
duke@435	2006	LIR_List* lir_list() const { return _lir; }
duke@435	2007	int number_of_insertion_points() const { return _index_and_count.length() >> 1; }
duke@435	2008	int index_at(int i) const { return _index_and_count.at((i << 1)); }
duke@435	2009	int count_at(int i) const { return _index_and_count.at((i << 1) + 1); }
duke@435	2010
duke@435	2011	int number_of_ops() const { return _ops.length(); }
duke@435	2012	LIR_Op* op_at(int i) const { return _ops.at(i); }
duke@435	2013
duke@435	2014	// append an instruction to the buffer
duke@435	2015	void append(int index, LIR_Op* op);
duke@435	2016
duke@435	2017	// instruction
duke@435	2018	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	2019	};
duke@435	2020
duke@435	2021
duke@435	2022	//
duke@435	2023	// LIR_OpVisitState is used for manipulating LIR_Ops in an abstract way.
duke@435	2024	// Calling a LIR_Op's visit function with a LIR_OpVisitState causes
duke@435	2025	// information about the input, output and temporaries used by the
duke@435	2026	// op to be recorded. It also records whether the op has call semantics
duke@435	2027	// and also records all the CodeEmitInfos used by this op.
duke@435	2028	//
duke@435	2029
duke@435	2030
duke@435	2031	class LIR_OpVisitState: public StackObj {
duke@435	2032	public:
duke@435	2033	typedef enum { inputMode, firstMode = inputMode, tempMode, outputMode, numModes, invalidMode = -1 } OprMode;
duke@435	2034
duke@435	2035	enum {
never@1610	2036	maxNumberOfOperands = 16,
duke@435	2037	maxNumberOfInfos = 4
duke@435	2038	};
duke@435	2039
duke@435	2040	private:
duke@435	2041	LIR_Op* _op;
duke@435	2042
duke@435	2043	// optimization: the operands and infos are not stored in a variable-length
duke@435	2044	// list, but in a fixed-size array to save time of size checks and resizing
duke@435	2045	int _oprs_len[numModes];
duke@435	2046	LIR_Opr* _oprs_new[numModes][maxNumberOfOperands];
duke@435	2047	int _info_len;
duke@435	2048	CodeEmitInfo* _info_new[maxNumberOfInfos];
duke@435	2049
duke@435	2050	bool _has_call;
duke@435	2051	bool _has_slow_case;
duke@435	2052
duke@435	2053
duke@435	2054	// only include register operands
duke@435	2055	// addresses are decomposed to the base and index registers
duke@435	2056	// constants and stack operands are ignored
duke@435	2057	void append(LIR_Opr& opr, OprMode mode) {
duke@435	2058	assert(opr->is_valid(), "should not call this otherwise");
duke@435	2059	assert(mode >= 0 && mode < numModes, "bad mode");
duke@435	2060
duke@435	2061	if (opr->is_register()) {
duke@435	2062	assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
duke@435	2063	_oprs_new[mode][_oprs_len[mode]++] = &opr;
duke@435	2064
duke@435	2065	} else if (opr->is_pointer()) {
duke@435	2066	LIR_Address* address = opr->as_address_ptr();
duke@435	2067	if (address != NULL) {
duke@435	2068	// special handling for addresses: add base and index register of the address
duke@435	2069	// both are always input operands!
duke@435	2070	if (address->_base->is_valid()) {
duke@435	2071	assert(address->_base->is_register(), "must be");
duke@435	2072	assert(_oprs_len[inputMode] < maxNumberOfOperands, "array overflow");
duke@435	2073	_oprs_new[inputMode][_oprs_len[inputMode]++] = &address->_base;
duke@435	2074	}
duke@435	2075	if (address->_index->is_valid()) {
duke@435	2076	assert(address->_index->is_register(), "must be");
duke@435	2077	assert(_oprs_len[inputMode] < maxNumberOfOperands, "array overflow");
duke@435	2078	_oprs_new[inputMode][_oprs_len[inputMode]++] = &address->_index;
duke@435	2079	}
duke@435	2080
duke@435	2081	} else {
duke@435	2082	assert(opr->is_constant(), "constant operands are not processed");
duke@435	2083	}
duke@435	2084	} else {
duke@435	2085	assert(opr->is_stack(), "stack operands are not processed");
duke@435	2086	}
duke@435	2087	}
duke@435	2088
duke@435	2089	void append(CodeEmitInfo* info) {
duke@435	2090	assert(info != NULL, "should not call this otherwise");
duke@435	2091	assert(_info_len < maxNumberOfInfos, "array overflow");
duke@435	2092	_info_new[_info_len++] = info;
duke@435	2093	}
duke@435	2094
duke@435	2095	public:
duke@435	2096	LIR_OpVisitState() { reset(); }
duke@435	2097
duke@435	2098	LIR_Op* op() const { return _op; }
duke@435	2099	void set_op(LIR_Op* op) { reset(); _op = op; }
duke@435	2100
duke@435	2101	bool has_call() const { return _has_call; }
duke@435	2102	bool has_slow_case() const { return _has_slow_case; }
duke@435	2103
duke@435	2104	void reset() {
duke@435	2105	_op = NULL;
duke@435	2106	_has_call = false;
duke@435	2107	_has_slow_case = false;
duke@435	2108
duke@435	2109	_oprs_len[inputMode] = 0;
duke@435	2110	_oprs_len[tempMode] = 0;
duke@435	2111	_oprs_len[outputMode] = 0;
duke@435	2112	_info_len = 0;
duke@435	2113	}
duke@435	2114
duke@435	2115
duke@435	2116	int opr_count(OprMode mode) const {
duke@435	2117	assert(mode >= 0 && mode < numModes, "bad mode");
duke@435	2118	return _oprs_len[mode];
duke@435	2119	}
duke@435	2120
duke@435	2121	LIR_Opr opr_at(OprMode mode, int index) const {
duke@435	2122	assert(mode >= 0 && mode < numModes, "bad mode");
duke@435	2123	assert(index >= 0 && index < _oprs_len[mode], "index out of bound");
duke@435	2124	return *_oprs_new[mode][index];
duke@435	2125	}
duke@435	2126
duke@435	2127	void set_opr_at(OprMode mode, int index, LIR_Opr opr) const {
duke@435	2128	assert(mode >= 0 && mode < numModes, "bad mode");
duke@435	2129	assert(index >= 0 && index < _oprs_len[mode], "index out of bound");
duke@435	2130	*_oprs_new[mode][index] = opr;
duke@435	2131	}
duke@435	2132
duke@435	2133	int info_count() const {
duke@435	2134	return _info_len;
duke@435	2135	}
duke@435	2136
duke@435	2137	CodeEmitInfo* info_at(int index) const {
duke@435	2138	assert(index < _info_len, "index out of bounds");
duke@435	2139	return _info_new[index];
duke@435	2140	}
duke@435	2141
duke@435	2142	XHandlers* all_xhandler();
duke@435	2143
duke@435	2144	// collects all register operands of the instruction
duke@435	2145	void visit(LIR_Op* op);
duke@435	2146
duke@435	2147	#if ASSERT
duke@435	2148	// check that an operation has no operands
duke@435	2149	bool no_operands(LIR_Op* op);
duke@435	2150	#endif
duke@435	2151
duke@435	2152	// LIR_Op visitor functions use these to fill in the state
duke@435	2153	void do_input(LIR_Opr& opr) { append(opr, LIR_OpVisitState::inputMode); }
duke@435	2154	void do_output(LIR_Opr& opr) { append(opr, LIR_OpVisitState::outputMode); }
duke@435	2155	void do_temp(LIR_Opr& opr) { append(opr, LIR_OpVisitState::tempMode); }
duke@435	2156	void do_info(CodeEmitInfo* info) { append(info); }
duke@435	2157
duke@435	2158	void do_stub(CodeStub* stub);
duke@435	2159	void do_call() { _has_call = true; }
duke@435	2160	void do_slow_case() { _has_slow_case = true; }
duke@435	2161	void do_slow_case(CodeEmitInfo* info) {
duke@435	2162	_has_slow_case = true;
duke@435	2163	append(info);
duke@435	2164	}
duke@435	2165	};
duke@435	2166
duke@435	2167
duke@435	2168	inline LIR_Opr LIR_OprDesc::illegalOpr() { return LIR_OprFact::illegalOpr; };