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src/share/vm/c1/c1_LIR.hpp@a61af66fc99e (annotated)

src/share/vm/c1/c1_LIR.hpp

Sat, 01 Dec 2007 00:00:00 +0000

author

duke

date

Sat, 01 Dec 2007 00:00:00 +0000

changeset 435

a61af66fc99e

child 739

dc7f315e41f7

permissions

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duke@435	1	/*
duke@435	2	* Copyright 2000-2006 Sun Microsystems, Inc. All Rights Reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
duke@435	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435	20	* CA 95054 USA or visit www.sun.com if you need additional information or
duke@435	21	* have any questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	class BlockBegin;
duke@435	26	class BlockList;
duke@435	27	class LIR_Assembler;
duke@435	28	class CodeEmitInfo;
duke@435	29	class CodeStub;
duke@435	30	class CodeStubList;
duke@435	31	class ArrayCopyStub;
duke@435	32	class LIR_Op;
duke@435	33	class ciType;
duke@435	34	class ValueType;
duke@435	35	class LIR_OpVisitState;
duke@435	36	class FpuStackSim;
duke@435	37
duke@435	38	//---------------------------------------------------------------------
duke@435	39	// LIR Operands
duke@435	40	// LIR_OprDesc
duke@435	41	// LIR_OprPtr
duke@435	42	// LIR_Const
duke@435	43	// LIR_Address
duke@435	44	//---------------------------------------------------------------------
duke@435	45	class LIR_OprDesc;
duke@435	46	class LIR_OprPtr;
duke@435	47	class LIR_Const;
duke@435	48	class LIR_Address;
duke@435	49	class LIR_OprVisitor;
duke@435	50
duke@435	51
duke@435	52	typedef LIR_OprDesc* LIR_Opr;
duke@435	53	typedef int RegNr;
duke@435	54
duke@435	55	define_array(LIR_OprArray, LIR_Opr)
duke@435	56	define_stack(LIR_OprList, LIR_OprArray)
duke@435	57
duke@435	58	define_array(LIR_OprRefArray, LIR_Opr*)
duke@435	59	define_stack(LIR_OprRefList, LIR_OprRefArray)
duke@435	60
duke@435	61	define_array(CodeEmitInfoArray, CodeEmitInfo*)
duke@435	62	define_stack(CodeEmitInfoList, CodeEmitInfoArray)
duke@435	63
duke@435	64	define_array(LIR_OpArray, LIR_Op*)
duke@435	65	define_stack(LIR_OpList, LIR_OpArray)
duke@435	66
duke@435	67	// define LIR_OprPtr early so LIR_OprDesc can refer to it
duke@435	68	class LIR_OprPtr: public CompilationResourceObj {
duke@435	69	public:
duke@435	70	bool is_oop_pointer() const { return (type() == T_OBJECT); }
duke@435	71	bool is_float_kind() const { BasicType t = type(); return (t == T_FLOAT) || (t == T_DOUBLE); }
duke@435	72
duke@435	73	virtual LIR_Const* as_constant() { return NULL; }
duke@435	74	virtual LIR_Address* as_address() { return NULL; }
duke@435	75	virtual BasicType type() const = 0;
duke@435	76	virtual void print_value_on(outputStream* out) const = 0;
duke@435	77	};
duke@435	78
duke@435	79
duke@435	80
duke@435	81	// LIR constants
duke@435	82	class LIR_Const: public LIR_OprPtr {
duke@435	83	private:
duke@435	84	JavaValue _value;
duke@435	85
duke@435	86	void type_check(BasicType t) const { assert(type() == t, "type check"); }
duke@435	87	void type_check(BasicType t1, BasicType t2) const { assert(type() == t1 || type() == t2, "type check"); }
duke@435	88
duke@435	89	public:
duke@435	90	LIR_Const(jint i) { _value.set_type(T_INT); _value.set_jint(i); }
duke@435	91	LIR_Const(jlong l) { _value.set_type(T_LONG); _value.set_jlong(l); }
duke@435	92	LIR_Const(jfloat f) { _value.set_type(T_FLOAT); _value.set_jfloat(f); }
duke@435	93	LIR_Const(jdouble d) { _value.set_type(T_DOUBLE); _value.set_jdouble(d); }
duke@435	94	LIR_Const(jobject o) { _value.set_type(T_OBJECT); _value.set_jobject(o); }
duke@435	95	LIR_Const(void* p) {
duke@435	96	#ifdef _LP64
duke@435	97	assert(sizeof(jlong) >= sizeof(p), "too small");;
duke@435	98	_value.set_type(T_LONG); _value.set_jlong((jlong)p);
duke@435	99	#else
duke@435	100	assert(sizeof(jint) >= sizeof(p), "too small");;
duke@435	101	_value.set_type(T_INT); _value.set_jint((jint)p);
duke@435	102	#endif
duke@435	103	}
duke@435	104
duke@435	105	virtual BasicType type() const { return _value.get_type(); }
duke@435	106	virtual LIR_Const* as_constant() { return this; }
duke@435	107
duke@435	108	jint as_jint() const { type_check(T_INT ); return _value.get_jint(); }
duke@435	109	jlong as_jlong() const { type_check(T_LONG ); return _value.get_jlong(); }
duke@435	110	jfloat as_jfloat() const { type_check(T_FLOAT ); return _value.get_jfloat(); }
duke@435	111	jdouble as_jdouble() const { type_check(T_DOUBLE); return _value.get_jdouble(); }
duke@435	112	jobject as_jobject() const { type_check(T_OBJECT); return _value.get_jobject(); }
duke@435	113	jint as_jint_lo() const { type_check(T_LONG ); return low(_value.get_jlong()); }
duke@435	114	jint as_jint_hi() const { type_check(T_LONG ); return high(_value.get_jlong()); }
duke@435	115
duke@435	116	#ifdef _LP64
duke@435	117	address as_pointer() const { type_check(T_LONG ); return (address)_value.get_jlong(); }
duke@435	118	#else
duke@435	119	address as_pointer() const { type_check(T_INT ); return (address)_value.get_jint(); }
duke@435	120	#endif
duke@435	121
duke@435	122
duke@435	123	jint as_jint_bits() const { type_check(T_FLOAT, T_INT); return _value.get_jint(); }
duke@435	124	jint as_jint_lo_bits() const {
duke@435	125	if (type() == T_DOUBLE) {
duke@435	126	return low(jlong_cast(_value.get_jdouble()));
duke@435	127	} else {
duke@435	128	return as_jint_lo();
duke@435	129	}
duke@435	130	}
duke@435	131	jint as_jint_hi_bits() const {
duke@435	132	if (type() == T_DOUBLE) {
duke@435	133	return high(jlong_cast(_value.get_jdouble()));
duke@435	134	} else {
duke@435	135	return as_jint_hi();
duke@435	136	}
duke@435	137	}
duke@435	138
duke@435	139	virtual void print_value_on(outputStream* out) const PRODUCT_RETURN;
duke@435	140
duke@435	141
duke@435	142	bool is_zero_float() {
duke@435	143	jfloat f = as_jfloat();
duke@435	144	jfloat ok = 0.0f;
duke@435	145	return jint_cast(f) == jint_cast(ok);
duke@435	146	}
duke@435	147
duke@435	148	bool is_one_float() {
duke@435	149	jfloat f = as_jfloat();
duke@435	150	return !g_isnan(f) && g_isfinite(f) && f == 1.0;
duke@435	151	}
duke@435	152
duke@435	153	bool is_zero_double() {
duke@435	154	jdouble d = as_jdouble();
duke@435	155	jdouble ok = 0.0;
duke@435	156	return jlong_cast(d) == jlong_cast(ok);
duke@435	157	}
duke@435	158
duke@435	159	bool is_one_double() {
duke@435	160	jdouble d = as_jdouble();
duke@435	161	return !g_isnan(d) && g_isfinite(d) && d == 1.0;
duke@435	162	}
duke@435	163	};
duke@435	164
duke@435	165
duke@435	166	//---------------------LIR Operand descriptor------------------------------------
duke@435	167	//
duke@435	168	// The class LIR_OprDesc represents a LIR instruction operand;
duke@435	169	// it can be a register (ALU/FPU), stack location or a constant;
duke@435	170	// Constants and addresses are represented as resource area allocated
duke@435	171	// structures (see above).
duke@435	172	// Registers and stack locations are inlined into the this pointer
duke@435	173	// (see value function).
duke@435	174
duke@435	175	class LIR_OprDesc: public CompilationResourceObj {
duke@435	176	public:
duke@435	177	// value structure:
duke@435	178	// data opr-type opr-kind
duke@435	179	// +--------------+-------+-------+
duke@435	180	// [max...........|7 6 5 4|3 2 1 0]
duke@435	181	// ^
duke@435	182	// is_pointer bit
duke@435	183	//
duke@435	184	// lowest bit cleared, means it is a structure pointer
duke@435	185	// we need 4 bits to represent types
duke@435	186
duke@435	187	private:
duke@435	188	friend class LIR_OprFact;
duke@435	189
duke@435	190	// Conversion
duke@435	191	intptr_t value() const { return (intptr_t) this; }
duke@435	192
duke@435	193	bool check_value_mask(intptr_t mask, intptr_t masked_value) const {
duke@435	194	return (value() & mask) == masked_value;
duke@435	195	}
duke@435	196
duke@435	197	enum OprKind {
duke@435	198	pointer_value = 0
duke@435	199	, stack_value = 1
duke@435	200	, cpu_register = 3
duke@435	201	, fpu_register = 5
duke@435	202	, illegal_value = 7
duke@435	203	};
duke@435	204
duke@435	205	enum OprBits {
duke@435	206	pointer_bits = 1
duke@435	207	, kind_bits = 3
duke@435	208	, type_bits = 4
duke@435	209	, size_bits = 2
duke@435	210	, destroys_bits = 1
duke@435	211	, virtual_bits = 1
duke@435	212	, is_xmm_bits = 1
duke@435	213	, last_use_bits = 1
duke@435	214	, is_fpu_stack_offset_bits = 1 // used in assertion checking on x86 for FPU stack slot allocation
duke@435	215	, non_data_bits = kind_bits + type_bits + size_bits + destroys_bits + last_use_bits +
duke@435	216	is_fpu_stack_offset_bits + virtual_bits + is_xmm_bits
duke@435	217	, data_bits = BitsPerInt - non_data_bits
duke@435	218	, reg_bits = data_bits / 2 // for two registers in one value encoding
duke@435	219	};
duke@435	220
duke@435	221	enum OprShift {
duke@435	222	kind_shift = 0
duke@435	223	, type_shift = kind_shift + kind_bits
duke@435	224	, size_shift = type_shift + type_bits
duke@435	225	, destroys_shift = size_shift + size_bits
duke@435	226	, last_use_shift = destroys_shift + destroys_bits
duke@435	227	, is_fpu_stack_offset_shift = last_use_shift + last_use_bits
duke@435	228	, virtual_shift = is_fpu_stack_offset_shift + is_fpu_stack_offset_bits
duke@435	229	, is_xmm_shift = virtual_shift + virtual_bits
duke@435	230	, data_shift = is_xmm_shift + is_xmm_bits
duke@435	231	, reg1_shift = data_shift
duke@435	232	, reg2_shift = data_shift + reg_bits
duke@435	233
duke@435	234	};
duke@435	235
duke@435	236	enum OprSize {
duke@435	237	single_size = 0 << size_shift
duke@435	238	, double_size = 1 << size_shift
duke@435	239	};
duke@435	240
duke@435	241	enum OprMask {
duke@435	242	kind_mask = right_n_bits(kind_bits)
duke@435	243	, type_mask = right_n_bits(type_bits) << type_shift
duke@435	244	, size_mask = right_n_bits(size_bits) << size_shift
duke@435	245	, last_use_mask = right_n_bits(last_use_bits) << last_use_shift
duke@435	246	, is_fpu_stack_offset_mask = right_n_bits(is_fpu_stack_offset_bits) << is_fpu_stack_offset_shift
duke@435	247	, virtual_mask = right_n_bits(virtual_bits) << virtual_shift
duke@435	248	, is_xmm_mask = right_n_bits(is_xmm_bits) << is_xmm_shift
duke@435	249	, pointer_mask = right_n_bits(pointer_bits)
duke@435	250	, lower_reg_mask = right_n_bits(reg_bits)
duke@435	251	, no_type_mask = (int)(~(type_mask | last_use_mask | is_fpu_stack_offset_mask))
duke@435	252	};
duke@435	253
duke@435	254	uintptr_t data() const { return value() >> data_shift; }
duke@435	255	int lo_reg_half() const { return data() & lower_reg_mask; }
duke@435	256	int hi_reg_half() const { return (data() >> reg_bits) & lower_reg_mask; }
duke@435	257	OprKind kind_field() const { return (OprKind)(value() & kind_mask); }
duke@435	258	OprSize size_field() const { return (OprSize)(value() & size_mask); }
duke@435	259
duke@435	260	static char type_char(BasicType t);
duke@435	261
duke@435	262	public:
duke@435	263	enum {
duke@435	264	vreg_base = ConcreteRegisterImpl::number_of_registers,
duke@435	265	vreg_max = (1 << data_bits) - 1
duke@435	266	};
duke@435	267
duke@435	268	static inline LIR_Opr illegalOpr();
duke@435	269
duke@435	270	enum OprType {
duke@435	271	unknown_type = 0 << type_shift // means: not set (catch uninitialized types)
duke@435	272	, int_type = 1 << type_shift
duke@435	273	, long_type = 2 << type_shift
duke@435	274	, object_type = 3 << type_shift
duke@435	275	, pointer_type = 4 << type_shift
duke@435	276	, float_type = 5 << type_shift
duke@435	277	, double_type = 6 << type_shift
duke@435	278	};
duke@435	279	friend OprType as_OprType(BasicType t);
duke@435	280	friend BasicType as_BasicType(OprType t);
duke@435	281
duke@435	282	OprType type_field_valid() const { assert(is_register() || is_stack(), "should not be called otherwise"); return (OprType)(value() & type_mask); }
duke@435	283	OprType type_field() const { return is_illegal() ? unknown_type : (OprType)(value() & type_mask); }
duke@435	284
duke@435	285	static OprSize size_for(BasicType t) {
duke@435	286	switch (t) {
duke@435	287	case T_LONG:
duke@435	288	case T_DOUBLE:
duke@435	289	return double_size;
duke@435	290	break;
duke@435	291
duke@435	292	case T_FLOAT:
duke@435	293	case T_BOOLEAN:
duke@435	294	case T_CHAR:
duke@435	295	case T_BYTE:
duke@435	296	case T_SHORT:
duke@435	297	case T_INT:
duke@435	298	case T_OBJECT:
duke@435	299	case T_ARRAY:
duke@435	300	return single_size;
duke@435	301	break;
duke@435	302
duke@435	303	default:
duke@435	304	ShouldNotReachHere();
duke@435	305	}
duke@435	306	}
duke@435	307
duke@435	308
duke@435	309	void validate_type() const PRODUCT_RETURN;
duke@435	310
duke@435	311	BasicType type() const {
duke@435	312	if (is_pointer()) {
duke@435	313	return pointer()->type();
duke@435	314	}
duke@435	315	return as_BasicType(type_field());
duke@435	316	}
duke@435	317
duke@435	318
duke@435	319	ValueType* value_type() const { return as_ValueType(type()); }
duke@435	320
duke@435	321	char type_char() const { return type_char((is_pointer()) ? pointer()->type() : type()); }
duke@435	322
duke@435	323	bool is_equal(LIR_Opr opr) const { return this == opr; }
duke@435	324	// checks whether types are same
duke@435	325	bool is_same_type(LIR_Opr opr) const {
duke@435	326	assert(type_field() != unknown_type &&
duke@435	327	opr->type_field() != unknown_type, "shouldn't see unknown_type");
duke@435	328	return type_field() == opr->type_field();
duke@435	329	}
duke@435	330	bool is_same_register(LIR_Opr opr) {
duke@435	331	return (is_register() && opr->is_register() &&
duke@435	332	kind_field() == opr->kind_field() &&
duke@435	333	(value() & no_type_mask) == (opr->value() & no_type_mask));
duke@435	334	}
duke@435	335
duke@435	336	bool is_pointer() const { return check_value_mask(pointer_mask, pointer_value); }
duke@435	337	bool is_illegal() const { return kind_field() == illegal_value; }
duke@435	338	bool is_valid() const { return kind_field() != illegal_value; }
duke@435	339
duke@435	340	bool is_register() const { return is_cpu_register() || is_fpu_register(); }
duke@435	341	bool is_virtual() const { return is_virtual_cpu() || is_virtual_fpu(); }
duke@435	342
duke@435	343	bool is_constant() const { return is_pointer() && pointer()->as_constant() != NULL; }
duke@435	344	bool is_address() const { return is_pointer() && pointer()->as_address() != NULL; }
duke@435	345
duke@435	346	bool is_float_kind() const { return is_pointer() ? pointer()->is_float_kind() : (kind_field() == fpu_register); }
duke@435	347	bool is_oop() const;
duke@435	348
duke@435	349	// semantic for fpu- and xmm-registers:
duke@435	350	// * is_float and is_double return true for xmm_registers
duke@435	351	// (so is_single_fpu and is_single_xmm are true)
duke@435	352	// * So you must always check for is_???_xmm prior to is_???_fpu to
duke@435	353	// distinguish between fpu- and xmm-registers
duke@435	354
duke@435	355	bool is_stack() const { validate_type(); return check_value_mask(kind_mask, stack_value); }
duke@435	356	bool is_single_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | single_size); }
duke@435	357	bool is_double_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | double_size); }
duke@435	358
duke@435	359	bool is_cpu_register() const { validate_type(); return check_value_mask(kind_mask, cpu_register); }
duke@435	360	bool is_virtual_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register | virtual_mask); }
duke@435	361	bool is_fixed_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register); }
duke@435	362	bool is_single_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | single_size); }
duke@435	363	bool is_double_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | double_size); }
duke@435	364
duke@435	365	bool is_fpu_register() const { validate_type(); return check_value_mask(kind_mask, fpu_register); }
duke@435	366	bool is_virtual_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register | virtual_mask); }
duke@435	367	bool is_fixed_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register); }
duke@435	368	bool is_single_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | single_size); }
duke@435	369	bool is_double_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | double_size); }
duke@435	370
duke@435	371	bool is_xmm_register() const { validate_type(); return check_value_mask(kind_mask | is_xmm_mask, fpu_register | is_xmm_mask); }
duke@435	372	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	373	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	374
duke@435	375	// fast accessor functions for special bits that do not work for pointers
duke@435	376	// (in this functions, the check for is_pointer() is omitted)
duke@435	377	bool is_single_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, single_size); }
duke@435	378	bool is_double_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, double_size); }
duke@435	379	bool is_virtual_register() const { assert(is_register(), "type check"); return check_value_mask(virtual_mask, virtual_mask); }
duke@435	380	bool is_oop_register() const { assert(is_register() || is_stack(), "type check"); return type_field_valid() == object_type; }
duke@435	381	BasicType type_register() const { assert(is_register() || is_stack(), "type check"); return as_BasicType(type_field_valid()); }
duke@435	382
duke@435	383	bool is_last_use() const { assert(is_register(), "only works for registers"); return (value() & last_use_mask) != 0; }
duke@435	384	bool is_fpu_stack_offset() const { assert(is_register(), "only works for registers"); return (value() & is_fpu_stack_offset_mask) != 0; }
duke@435	385	LIR_Opr make_last_use() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | last_use_mask); }
duke@435	386	LIR_Opr make_fpu_stack_offset() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | is_fpu_stack_offset_mask); }
duke@435	387
duke@435	388
duke@435	389	int single_stack_ix() const { assert(is_single_stack() && !is_virtual(), "type check"); return (int)data(); }
duke@435	390	int double_stack_ix() const { assert(is_double_stack() && !is_virtual(), "type check"); return (int)data(); }
duke@435	391	RegNr cpu_regnr() const { assert(is_single_cpu() && !is_virtual(), "type check"); return (RegNr)data(); }
duke@435	392	RegNr cpu_regnrLo() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
duke@435	393	RegNr cpu_regnrHi() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
duke@435	394	RegNr fpu_regnr() const { assert(is_single_fpu() && !is_virtual(), "type check"); return (RegNr)data(); }
duke@435	395	RegNr fpu_regnrLo() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
duke@435	396	RegNr fpu_regnrHi() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
duke@435	397	RegNr xmm_regnr() const { assert(is_single_xmm() && !is_virtual(), "type check"); return (RegNr)data(); }
duke@435	398	RegNr xmm_regnrLo() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); }
duke@435	399	RegNr xmm_regnrHi() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); }
duke@435	400	int vreg_number() const { assert(is_virtual(), "type check"); return (RegNr)data(); }
duke@435	401
duke@435	402	LIR_OprPtr* pointer() const { assert(is_pointer(), "type check"); return (LIR_OprPtr*)this; }
duke@435	403	LIR_Const* as_constant_ptr() const { return pointer()->as_constant(); }
duke@435	404	LIR_Address* as_address_ptr() const { return pointer()->as_address(); }
duke@435	405
duke@435	406	Register as_register() const;
duke@435	407	Register as_register_lo() const;
duke@435	408	Register as_register_hi() const;
duke@435	409
duke@435	410	Register as_pointer_register() {
duke@435	411	#ifdef _LP64
duke@435	412	if (is_double_cpu()) {
duke@435	413	assert(as_register_lo() == as_register_hi(), "should be a single register");
duke@435	414	return as_register_lo();
duke@435	415	}
duke@435	416	#endif
duke@435	417	return as_register();
duke@435	418	}
duke@435	419
duke@435	420	#ifdef IA32
duke@435	421	XMMRegister as_xmm_float_reg() const;
duke@435	422	XMMRegister as_xmm_double_reg() const;
duke@435	423	// for compatibility with RInfo
duke@435	424	int fpu () const { return lo_reg_half(); }
duke@435	425	#endif
duke@435	426
duke@435	427	#ifdef SPARC
duke@435	428	FloatRegister as_float_reg () const;
duke@435	429	FloatRegister as_double_reg () const;
duke@435	430	#endif
duke@435	431
duke@435	432	jint as_jint() const { return as_constant_ptr()->as_jint(); }
duke@435	433	jlong as_jlong() const { return as_constant_ptr()->as_jlong(); }
duke@435	434	jfloat as_jfloat() const { return as_constant_ptr()->as_jfloat(); }
duke@435	435	jdouble as_jdouble() const { return as_constant_ptr()->as_jdouble(); }
duke@435	436	jobject as_jobject() const { return as_constant_ptr()->as_jobject(); }
duke@435	437
duke@435	438	void print() const PRODUCT_RETURN;
duke@435	439	void print(outputStream* out) const PRODUCT_RETURN;
duke@435	440	};
duke@435	441
duke@435	442
duke@435	443	inline LIR_OprDesc::OprType as_OprType(BasicType type) {
duke@435	444	switch (type) {
duke@435	445	case T_INT: return LIR_OprDesc::int_type;
duke@435	446	case T_LONG: return LIR_OprDesc::long_type;
duke@435	447	case T_FLOAT: return LIR_OprDesc::float_type;
duke@435	448	case T_DOUBLE: return LIR_OprDesc::double_type;
duke@435	449	case T_OBJECT:
duke@435	450	case T_ARRAY: return LIR_OprDesc::object_type;
duke@435	451	case T_ILLEGAL: // fall through
duke@435	452	default: ShouldNotReachHere(); return LIR_OprDesc::unknown_type;
duke@435	453	}
duke@435	454	}
duke@435	455
duke@435	456	inline BasicType as_BasicType(LIR_OprDesc::OprType t) {
duke@435	457	switch (t) {
duke@435	458	case LIR_OprDesc::int_type: return T_INT;
duke@435	459	case LIR_OprDesc::long_type: return T_LONG;
duke@435	460	case LIR_OprDesc::float_type: return T_FLOAT;
duke@435	461	case LIR_OprDesc::double_type: return T_DOUBLE;
duke@435	462	case LIR_OprDesc::object_type: return T_OBJECT;
duke@435	463	case LIR_OprDesc::unknown_type: // fall through
duke@435	464	default: ShouldNotReachHere(); return T_ILLEGAL;
duke@435	465	}
duke@435	466	}
duke@435	467
duke@435	468
duke@435	469	// LIR_Address
duke@435	470	class LIR_Address: public LIR_OprPtr {
duke@435	471	friend class LIR_OpVisitState;
duke@435	472
duke@435	473	public:
duke@435	474	// NOTE: currently these must be the log2 of the scale factor (and
duke@435	475	// must also be equivalent to the ScaleFactor enum in
duke@435	476	// assembler_i486.hpp)
duke@435	477	enum Scale {
duke@435	478	times_1 = 0,
duke@435	479	times_2 = 1,
duke@435	480	times_4 = 2,
duke@435	481	times_8 = 3
duke@435	482	};
duke@435	483
duke@435	484	private:
duke@435	485	LIR_Opr _base;
duke@435	486	LIR_Opr _index;
duke@435	487	Scale _scale;
duke@435	488	intx _disp;
duke@435	489	BasicType _type;
duke@435	490
duke@435	491	public:
duke@435	492	LIR_Address(LIR_Opr base, LIR_Opr index, BasicType type):
duke@435	493	_base(base)
duke@435	494	, _index(index)
duke@435	495	, _scale(times_1)
duke@435	496	, _type(type)
duke@435	497	, _disp(0) { verify(); }
duke@435	498
duke@435	499	LIR_Address(LIR_Opr base, int disp, BasicType type):
duke@435	500	_base(base)
duke@435	501	, _index(LIR_OprDesc::illegalOpr())
duke@435	502	, _scale(times_1)
duke@435	503	, _type(type)
duke@435	504	, _disp(disp) { verify(); }
duke@435	505
duke@435	506	#ifdef IA32
duke@435	507	LIR_Address(LIR_Opr base, LIR_Opr index, Scale scale, int disp, BasicType type):
duke@435	508	_base(base)
duke@435	509	, _index(index)
duke@435	510	, _scale(scale)
duke@435	511	, _type(type)
duke@435	512	, _disp(disp) { verify(); }
duke@435	513	#endif
duke@435	514
duke@435	515	LIR_Opr base() const { return _base; }
duke@435	516	LIR_Opr index() const { return _index; }
duke@435	517	Scale scale() const { return _scale; }
duke@435	518	intx disp() const { return _disp; }
duke@435	519
duke@435	520	bool equals(LIR_Address* other) const { return base() == other->base() && index() == other->index() && disp() == other->disp() && scale() == other->scale(); }
duke@435	521
duke@435	522	virtual LIR_Address* as_address() { return this; }
duke@435	523	virtual BasicType type() const { return _type; }
duke@435	524	virtual void print_value_on(outputStream* out) const PRODUCT_RETURN;
duke@435	525
duke@435	526	void verify() const PRODUCT_RETURN;
duke@435	527
duke@435	528	static Scale scale(BasicType type);
duke@435	529	};
duke@435	530
duke@435	531
duke@435	532	// operand factory
duke@435	533	class LIR_OprFact: public AllStatic {
duke@435	534	public:
duke@435	535
duke@435	536	static LIR_Opr illegalOpr;
duke@435	537
duke@435	538	static LIR_Opr single_cpu(int reg) { return (LIR_Opr)((reg << LIR_OprDesc::reg1_shift) | LIR_OprDesc::int_type | LIR_OprDesc::cpu_register | LIR_OprDesc::single_size); }
duke@435	539	static LIR_Opr single_cpu_oop(int reg) { return (LIR_Opr)((reg << LIR_OprDesc::reg1_shift) | LIR_OprDesc::object_type | LIR_OprDesc::cpu_register | LIR_OprDesc::single_size); }
duke@435	540	static LIR_Opr double_cpu(int reg1, int reg2) { return (LIR_Opr)((reg1 << LIR_OprDesc::reg1_shift) | (reg2 << LIR_OprDesc::reg2_shift) | LIR_OprDesc::long_type | LIR_OprDesc::cpu_register | LIR_OprDesc::double_size); }
duke@435	541
duke@435	542	static LIR_Opr single_fpu(int reg) { return (LIR_Opr)((reg << LIR_OprDesc::reg1_shift) | LIR_OprDesc::float_type | LIR_OprDesc::fpu_register | LIR_OprDesc::single_size); }
duke@435	543
duke@435	544	#ifdef SPARC
duke@435	545	static LIR_Opr double_fpu(int reg1, int reg2) { return (LIR_Opr)((reg1 << LIR_OprDesc::reg1_shift) | (reg2 << LIR_OprDesc::reg2_shift) | LIR_OprDesc::double_type | LIR_OprDesc::fpu_register | LIR_OprDesc::double_size); }
duke@435	546	#endif
duke@435	547	#ifdef IA32
duke@435	548	static LIR_Opr double_fpu(int reg) { return (LIR_Opr)((reg << LIR_OprDesc::reg1_shift) | (reg << LIR_OprDesc::reg2_shift) | LIR_OprDesc::double_type | LIR_OprDesc::fpu_register | LIR_OprDesc::double_size); }
duke@435	549	static LIR_Opr single_xmm(int reg) { return (LIR_Opr)((reg << LIR_OprDesc::reg1_shift) | LIR_OprDesc::float_type | LIR_OprDesc::fpu_register | LIR_OprDesc::single_size | LIR_OprDesc::is_xmm_mask); }
duke@435	550	static LIR_Opr double_xmm(int reg) { return (LIR_Opr)((reg << LIR_OprDesc::reg1_shift) | (reg << LIR_OprDesc::reg2_shift) | LIR_OprDesc::double_type | LIR_OprDesc::fpu_register | LIR_OprDesc::double_size | LIR_OprDesc::is_xmm_mask); }
duke@435	551	#endif
duke@435	552
duke@435	553
duke@435	554	static LIR_Opr virtual_register(int index, BasicType type) {
duke@435	555	LIR_Opr res;
duke@435	556	switch (type) {
duke@435	557	case T_OBJECT: // fall through
duke@435	558	case T_ARRAY: res = (LIR_Opr)((index << LIR_OprDesc::data_shift) | LIR_OprDesc::object_type | LIR_OprDesc::cpu_register | LIR_OprDesc::single_size | LIR_OprDesc::virtual_mask); break;
duke@435	559	case T_INT: res = (LIR_Opr)((index << LIR_OprDesc::data_shift) | LIR_OprDesc::int_type | LIR_OprDesc::cpu_register | LIR_OprDesc::single_size | LIR_OprDesc::virtual_mask); break;
duke@435	560	case T_LONG: res = (LIR_Opr)((index << LIR_OprDesc::data_shift) | LIR_OprDesc::long_type | LIR_OprDesc::cpu_register | LIR_OprDesc::double_size | LIR_OprDesc::virtual_mask); break;
duke@435	561	case T_FLOAT: res = (LIR_Opr)((index << LIR_OprDesc::data_shift) | LIR_OprDesc::float_type | LIR_OprDesc::fpu_register | LIR_OprDesc::single_size | LIR_OprDesc::virtual_mask); break;
duke@435	562	case T_DOUBLE: res = (LIR_Opr)((index << LIR_OprDesc::data_shift) | LIR_OprDesc::double_type | LIR_OprDesc::fpu_register | LIR_OprDesc::double_size | LIR_OprDesc::virtual_mask); break;
duke@435	563
duke@435	564	default: ShouldNotReachHere(); res = illegalOpr;
duke@435	565	}
duke@435	566
duke@435	567	#ifdef ASSERT
duke@435	568	res->validate_type();
duke@435	569	assert(res->vreg_number() == index, "conversion check");
duke@435	570	assert(index >= LIR_OprDesc::vreg_base, "must start at vreg_base");
duke@435	571	assert(index <= (max_jint >> LIR_OprDesc::data_shift), "index is too big");
duke@435	572
duke@435	573	// old-style calculation; check if old and new method are equal
duke@435	574	LIR_OprDesc::OprType t = as_OprType(type);
duke@435	575	LIR_Opr old_res = (LIR_Opr)((index << LIR_OprDesc::data_shift) | t |
duke@435	576	((type == T_FLOAT || type == T_DOUBLE) ? LIR_OprDesc::fpu_register : LIR_OprDesc::cpu_register) |
duke@435	577	LIR_OprDesc::size_for(type) | LIR_OprDesc::virtual_mask);
duke@435	578	assert(res == old_res, "old and new method not equal");
duke@435	579	#endif
duke@435	580
duke@435	581	return res;
duke@435	582	}
duke@435	583
duke@435	584	// 'index' is computed by FrameMap::local_stack_pos(index); do not use other parameters as
duke@435	585	// the index is platform independent; a double stack useing indeces 2 and 3 has always
duke@435	586	// index 2.
duke@435	587	static LIR_Opr stack(int index, BasicType type) {
duke@435	588	LIR_Opr res;
duke@435	589	switch (type) {
duke@435	590	case T_OBJECT: // fall through
duke@435	591	case T_ARRAY: res = (LIR_Opr)((index << LIR_OprDesc::data_shift) | LIR_OprDesc::object_type | LIR_OprDesc::stack_value | LIR_OprDesc::single_size); break;
duke@435	592	case T_INT: res = (LIR_Opr)((index << LIR_OprDesc::data_shift) | LIR_OprDesc::int_type | LIR_OprDesc::stack_value | LIR_OprDesc::single_size); break;
duke@435	593	case T_LONG: res = (LIR_Opr)((index << LIR_OprDesc::data_shift) | LIR_OprDesc::long_type | LIR_OprDesc::stack_value | LIR_OprDesc::double_size); break;
duke@435	594	case T_FLOAT: res = (LIR_Opr)((index << LIR_OprDesc::data_shift) | LIR_OprDesc::float_type | LIR_OprDesc::stack_value | LIR_OprDesc::single_size); break;
duke@435	595	case T_DOUBLE: res = (LIR_Opr)((index << LIR_OprDesc::data_shift) | LIR_OprDesc::double_type | LIR_OprDesc::stack_value | LIR_OprDesc::double_size); break;
duke@435	596
duke@435	597	default: ShouldNotReachHere(); res = illegalOpr;
duke@435	598	}
duke@435	599
duke@435	600	#ifdef ASSERT
duke@435	601	assert(index >= 0, "index must be positive");
duke@435	602	assert(index <= (max_jint >> LIR_OprDesc::data_shift), "index is too big");
duke@435	603
duke@435	604	LIR_Opr old_res = (LIR_Opr)((index << LIR_OprDesc::data_shift) | LIR_OprDesc::stack_value | as_OprType(type) | LIR_OprDesc::size_for(type));
duke@435	605	assert(res == old_res, "old and new method not equal");
duke@435	606	#endif
duke@435	607
duke@435	608	return res;
duke@435	609	}
duke@435	610
duke@435	611	static LIR_Opr intConst(jint i) { return (LIR_Opr)(new LIR_Const(i)); }
duke@435	612	static LIR_Opr longConst(jlong l) { return (LIR_Opr)(new LIR_Const(l)); }
duke@435	613	static LIR_Opr floatConst(jfloat f) { return (LIR_Opr)(new LIR_Const(f)); }
duke@435	614	static LIR_Opr doubleConst(jdouble d) { return (LIR_Opr)(new LIR_Const(d)); }
duke@435	615	static LIR_Opr oopConst(jobject o) { return (LIR_Opr)(new LIR_Const(o)); }
duke@435	616	static LIR_Opr address(LIR_Address* a) { return (LIR_Opr)a; }
duke@435	617	static LIR_Opr intptrConst(void* p) { return (LIR_Opr)(new LIR_Const(p)); }
duke@435	618	static LIR_Opr intptrConst(intptr_t v) { return (LIR_Opr)(new LIR_Const((void*)v)); }
duke@435	619	static LIR_Opr illegal() { return (LIR_Opr)-1; }
duke@435	620
duke@435	621	static LIR_Opr value_type(ValueType* type);
duke@435	622	static LIR_Opr dummy_value_type(ValueType* type);
duke@435	623	};
duke@435	624
duke@435	625
duke@435	626	//-------------------------------------------------------------------------------
duke@435	627	// LIR Instructions
duke@435	628	//-------------------------------------------------------------------------------
duke@435	629	//
duke@435	630	// Note:
duke@435	631	// - every instruction has a result operand
duke@435	632	// - every instruction has an CodeEmitInfo operand (can be revisited later)
duke@435	633	// - every instruction has a LIR_OpCode operand
duke@435	634	// - LIR_OpN, means an instruction that has N input operands
duke@435	635	//
duke@435	636	// class hierarchy:
duke@435	637	//
duke@435	638	class LIR_Op;
duke@435	639	class LIR_Op0;
duke@435	640	class LIR_OpLabel;
duke@435	641	class LIR_Op1;
duke@435	642	class LIR_OpBranch;
duke@435	643	class LIR_OpConvert;
duke@435	644	class LIR_OpAllocObj;
duke@435	645	class LIR_OpRoundFP;
duke@435	646	class LIR_Op2;
duke@435	647	class LIR_OpDelay;
duke@435	648	class LIR_Op3;
duke@435	649	class LIR_OpAllocArray;
duke@435	650	class LIR_OpCall;
duke@435	651	class LIR_OpJavaCall;
duke@435	652	class LIR_OpRTCall;
duke@435	653	class LIR_OpArrayCopy;
duke@435	654	class LIR_OpLock;
duke@435	655	class LIR_OpTypeCheck;
duke@435	656	class LIR_OpCompareAndSwap;
duke@435	657	class LIR_OpProfileCall;
duke@435	658
duke@435	659
duke@435	660	// LIR operation codes
duke@435	661	enum LIR_Code {
duke@435	662	lir_none
duke@435	663	, begin_op0
duke@435	664	, lir_word_align
duke@435	665	, lir_label
duke@435	666	, lir_nop
duke@435	667	, lir_backwardbranch_target
duke@435	668	, lir_std_entry
duke@435	669	, lir_osr_entry
duke@435	670	, lir_build_frame
duke@435	671	, lir_fpop_raw
duke@435	672	, lir_24bit_FPU
duke@435	673	, lir_reset_FPU
duke@435	674	, lir_breakpoint
duke@435	675	, lir_rtcall
duke@435	676	, lir_membar
duke@435	677	, lir_membar_acquire
duke@435	678	, lir_membar_release
duke@435	679	, lir_get_thread
duke@435	680	, end_op0
duke@435	681	, begin_op1
duke@435	682	, lir_fxch
duke@435	683	, lir_fld
duke@435	684	, lir_ffree
duke@435	685	, lir_push
duke@435	686	, lir_pop
duke@435	687	, lir_null_check
duke@435	688	, lir_return
duke@435	689	, lir_leal
duke@435	690	, lir_neg
duke@435	691	, lir_branch
duke@435	692	, lir_cond_float_branch
duke@435	693	, lir_move
duke@435	694	, lir_prefetchr
duke@435	695	, lir_prefetchw
duke@435	696	, lir_convert
duke@435	697	, lir_alloc_object
duke@435	698	, lir_monaddr
duke@435	699	, lir_roundfp
duke@435	700	, lir_safepoint
duke@435	701	, end_op1
duke@435	702	, begin_op2
duke@435	703	, lir_cmp
duke@435	704	, lir_cmp_l2i
duke@435	705	, lir_ucmp_fd2i
duke@435	706	, lir_cmp_fd2i
duke@435	707	, lir_cmove
duke@435	708	, lir_add
duke@435	709	, lir_sub
duke@435	710	, lir_mul
duke@435	711	, lir_mul_strictfp
duke@435	712	, lir_div
duke@435	713	, lir_div_strictfp
duke@435	714	, lir_rem
duke@435	715	, lir_sqrt
duke@435	716	, lir_abs
duke@435	717	, lir_sin
duke@435	718	, lir_cos
duke@435	719	, lir_tan
duke@435	720	, lir_log
duke@435	721	, lir_log10
duke@435	722	, lir_logic_and
duke@435	723	, lir_logic_or
duke@435	724	, lir_logic_xor
duke@435	725	, lir_shl
duke@435	726	, lir_shr
duke@435	727	, lir_ushr
duke@435	728	, lir_alloc_array
duke@435	729	, lir_throw
duke@435	730	, lir_unwind
duke@435	731	, lir_compare_to
duke@435	732	, end_op2
duke@435	733	, begin_op3
duke@435	734	, lir_idiv
duke@435	735	, lir_irem
duke@435	736	, end_op3
duke@435	737	, begin_opJavaCall
duke@435	738	, lir_static_call
duke@435	739	, lir_optvirtual_call
duke@435	740	, lir_icvirtual_call
duke@435	741	, lir_virtual_call
duke@435	742	, end_opJavaCall
duke@435	743	, begin_opArrayCopy
duke@435	744	, lir_arraycopy
duke@435	745	, end_opArrayCopy
duke@435	746	, begin_opLock
duke@435	747	, lir_lock
duke@435	748	, lir_unlock
duke@435	749	, end_opLock
duke@435	750	, begin_delay_slot
duke@435	751	, lir_delay_slot
duke@435	752	, end_delay_slot
duke@435	753	, begin_opTypeCheck
duke@435	754	, lir_instanceof
duke@435	755	, lir_checkcast
duke@435	756	, lir_store_check
duke@435	757	, end_opTypeCheck
duke@435	758	, begin_opCompareAndSwap
duke@435	759	, lir_cas_long
duke@435	760	, lir_cas_obj
duke@435	761	, lir_cas_int
duke@435	762	, end_opCompareAndSwap
duke@435	763	, begin_opMDOProfile
duke@435	764	, lir_profile_call
duke@435	765	, end_opMDOProfile
duke@435	766	};
duke@435	767
duke@435	768
duke@435	769	enum LIR_Condition {
duke@435	770	lir_cond_equal
duke@435	771	, lir_cond_notEqual
duke@435	772	, lir_cond_less
duke@435	773	, lir_cond_lessEqual
duke@435	774	, lir_cond_greaterEqual
duke@435	775	, lir_cond_greater
duke@435	776	, lir_cond_belowEqual
duke@435	777	, lir_cond_aboveEqual
duke@435	778	, lir_cond_always
duke@435	779	, lir_cond_unknown = -1
duke@435	780	};
duke@435	781
duke@435	782
duke@435	783	enum LIR_PatchCode {
duke@435	784	lir_patch_none,
duke@435	785	lir_patch_low,
duke@435	786	lir_patch_high,
duke@435	787	lir_patch_normal
duke@435	788	};
duke@435	789
duke@435	790
duke@435	791	enum LIR_MoveKind {
duke@435	792	lir_move_normal,
duke@435	793	lir_move_volatile,
duke@435	794	lir_move_unaligned,
duke@435	795	lir_move_max_flag
duke@435	796	};
duke@435	797
duke@435	798
duke@435	799	// --------------------------------------------------
duke@435	800	// LIR_Op
duke@435	801	// --------------------------------------------------
duke@435	802	class LIR_Op: public CompilationResourceObj {
duke@435	803	friend class LIR_OpVisitState;
duke@435	804
duke@435	805	#ifdef ASSERT
duke@435	806	private:
duke@435	807	const char * _file;
duke@435	808	int _line;
duke@435	809	#endif
duke@435	810
duke@435	811	protected:
duke@435	812	LIR_Opr _result;
duke@435	813	unsigned short _code;
duke@435	814	unsigned short _flags;
duke@435	815	CodeEmitInfo* _info;
duke@435	816	int _id; // value id for register allocation
duke@435	817	int _fpu_pop_count;
duke@435	818	Instruction* _source; // for debugging
duke@435	819
duke@435	820	static void print_condition(outputStream* out, LIR_Condition cond) PRODUCT_RETURN;
duke@435	821
duke@435	822	protected:
duke@435	823	static bool is_in_range(LIR_Code test, LIR_Code start, LIR_Code end) { return start < test && test < end; }
duke@435	824
duke@435	825	public:
duke@435	826	LIR_Op()
duke@435	827	: _result(LIR_OprFact::illegalOpr)
duke@435	828	, _code(lir_none)
duke@435	829	, _flags(0)
duke@435	830	, _info(NULL)
duke@435	831	#ifdef ASSERT
duke@435	832	, _file(NULL)
duke@435	833	, _line(0)
duke@435	834	#endif
duke@435	835	, _fpu_pop_count(0)
duke@435	836	, _source(NULL)
duke@435	837	, _id(-1) {}
duke@435	838
duke@435	839	LIR_Op(LIR_Code code, LIR_Opr result, CodeEmitInfo* info)
duke@435	840	: _result(result)
duke@435	841	, _code(code)
duke@435	842	, _flags(0)
duke@435	843	, _info(info)
duke@435	844	#ifdef ASSERT
duke@435	845	, _file(NULL)
duke@435	846	, _line(0)
duke@435	847	#endif
duke@435	848	, _fpu_pop_count(0)
duke@435	849	, _source(NULL)
duke@435	850	, _id(-1) {}
duke@435	851
duke@435	852	CodeEmitInfo* info() const { return _info; }
duke@435	853	LIR_Code code() const { return (LIR_Code)_code; }
duke@435	854	LIR_Opr result_opr() const { return _result; }
duke@435	855	void set_result_opr(LIR_Opr opr) { _result = opr; }
duke@435	856
duke@435	857	#ifdef ASSERT
duke@435	858	void set_file_and_line(const char * file, int line) {
duke@435	859	_file = file;
duke@435	860	_line = line;
duke@435	861	}
duke@435	862	#endif
duke@435	863
duke@435	864	virtual const char * name() const PRODUCT_RETURN0;
duke@435	865
duke@435	866	int id() const { return _id; }
duke@435	867	void set_id(int id) { _id = id; }
duke@435	868
duke@435	869	// FPU stack simulation helpers -- only used on Intel
duke@435	870	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	871	int fpu_pop_count() const { return _fpu_pop_count; }
duke@435	872	bool pop_fpu_stack() { return _fpu_pop_count > 0; }
duke@435	873
duke@435	874	Instruction* source() const { return _source; }
duke@435	875	void set_source(Instruction* ins) { _source = ins; }
duke@435	876
duke@435	877	virtual void emit_code(LIR_Assembler* masm) = 0;
duke@435	878	virtual void print_instr(outputStream* out) const = 0;
duke@435	879	virtual void print_on(outputStream* st) const PRODUCT_RETURN;
duke@435	880
duke@435	881	virtual LIR_OpCall* as_OpCall() { return NULL; }
duke@435	882	virtual LIR_OpJavaCall* as_OpJavaCall() { return NULL; }
duke@435	883	virtual LIR_OpLabel* as_OpLabel() { return NULL; }
duke@435	884	virtual LIR_OpDelay* as_OpDelay() { return NULL; }
duke@435	885	virtual LIR_OpLock* as_OpLock() { return NULL; }
duke@435	886	virtual LIR_OpAllocArray* as_OpAllocArray() { return NULL; }
duke@435	887	virtual LIR_OpAllocObj* as_OpAllocObj() { return NULL; }
duke@435	888	virtual LIR_OpRoundFP* as_OpRoundFP() { return NULL; }
duke@435	889	virtual LIR_OpBranch* as_OpBranch() { return NULL; }
duke@435	890	virtual LIR_OpRTCall* as_OpRTCall() { return NULL; }
duke@435	891	virtual LIR_OpConvert* as_OpConvert() { return NULL; }
duke@435	892	virtual LIR_Op0* as_Op0() { return NULL; }
duke@435	893	virtual LIR_Op1* as_Op1() { return NULL; }
duke@435	894	virtual LIR_Op2* as_Op2() { return NULL; }
duke@435	895	virtual LIR_Op3* as_Op3() { return NULL; }
duke@435	896	virtual LIR_OpArrayCopy* as_OpArrayCopy() { return NULL; }
duke@435	897	virtual LIR_OpTypeCheck* as_OpTypeCheck() { return NULL; }
duke@435	898	virtual LIR_OpCompareAndSwap* as_OpCompareAndSwap() { return NULL; }
duke@435	899	virtual LIR_OpProfileCall* as_OpProfileCall() { return NULL; }
duke@435	900
duke@435	901	virtual void verify() const {}
duke@435	902	};
duke@435	903
duke@435	904	// for calls
duke@435	905	class LIR_OpCall: public LIR_Op {
duke@435	906	friend class LIR_OpVisitState;
duke@435	907
duke@435	908	protected:
duke@435	909	address _addr;
duke@435	910	LIR_OprList* _arguments;
duke@435	911	protected:
duke@435	912	LIR_OpCall(LIR_Code code, address addr, LIR_Opr result,
duke@435	913	LIR_OprList* arguments, CodeEmitInfo* info = NULL)
duke@435	914	: LIR_Op(code, result, info)
duke@435	915	, _arguments(arguments)
duke@435	916	, _addr(addr) {}
duke@435	917
duke@435	918	public:
duke@435	919	address addr() const { return _addr; }
duke@435	920	const LIR_OprList* arguments() const { return _arguments; }
duke@435	921	virtual LIR_OpCall* as_OpCall() { return this; }
duke@435	922	};
duke@435	923
duke@435	924
duke@435	925	// --------------------------------------------------
duke@435	926	// LIR_OpJavaCall
duke@435	927	// --------------------------------------------------
duke@435	928	class LIR_OpJavaCall: public LIR_OpCall {
duke@435	929	friend class LIR_OpVisitState;
duke@435	930
duke@435	931	private:
duke@435	932	ciMethod* _method;
duke@435	933	LIR_Opr _receiver;
duke@435	934
duke@435	935	public:
duke@435	936	LIR_OpJavaCall(LIR_Code code, ciMethod* method,
duke@435	937	LIR_Opr receiver, LIR_Opr result,
duke@435	938	address addr, LIR_OprList* arguments,
duke@435	939	CodeEmitInfo* info)
duke@435	940	: LIR_OpCall(code, addr, result, arguments, info)
duke@435	941	, _receiver(receiver)
duke@435	942	, _method(method) { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); }
duke@435	943
duke@435	944	LIR_OpJavaCall(LIR_Code code, ciMethod* method,
duke@435	945	LIR_Opr receiver, LIR_Opr result, intptr_t vtable_offset,
duke@435	946	LIR_OprList* arguments, CodeEmitInfo* info)
duke@435	947	: LIR_OpCall(code, (address)vtable_offset, result, arguments, info)
duke@435	948	, _receiver(receiver)
duke@435	949	, _method(method) { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); }
duke@435	950
duke@435	951	LIR_Opr receiver() const { return _receiver; }
duke@435	952	ciMethod* method() const { return _method; }
duke@435	953
duke@435	954	intptr_t vtable_offset() const {
duke@435	955	assert(_code == lir_virtual_call, "only have vtable for real vcall");
duke@435	956	return (intptr_t) addr();
duke@435	957	}
duke@435	958
duke@435	959	virtual void emit_code(LIR_Assembler* masm);
duke@435	960	virtual LIR_OpJavaCall* as_OpJavaCall() { return this; }
duke@435	961	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	962	};
duke@435	963
duke@435	964	// --------------------------------------------------
duke@435	965	// LIR_OpLabel
duke@435	966	// --------------------------------------------------
duke@435	967	// Location where a branch can continue
duke@435	968	class LIR_OpLabel: public LIR_Op {
duke@435	969	friend class LIR_OpVisitState;
duke@435	970
duke@435	971	private:
duke@435	972	Label* _label;
duke@435	973	public:
duke@435	974	LIR_OpLabel(Label* lbl)
duke@435	975	: LIR_Op(lir_label, LIR_OprFact::illegalOpr, NULL)
duke@435	976	, _label(lbl) {}
duke@435	977	Label* label() const { return _label; }
duke@435	978
duke@435	979	virtual void emit_code(LIR_Assembler* masm);
duke@435	980	virtual LIR_OpLabel* as_OpLabel() { return this; }
duke@435	981	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	982	};
duke@435	983
duke@435	984	// LIR_OpArrayCopy
duke@435	985	class LIR_OpArrayCopy: public LIR_Op {
duke@435	986	friend class LIR_OpVisitState;
duke@435	987
duke@435	988	private:
duke@435	989	ArrayCopyStub* _stub;
duke@435	990	LIR_Opr _src;
duke@435	991	LIR_Opr _src_pos;
duke@435	992	LIR_Opr _dst;
duke@435	993	LIR_Opr _dst_pos;
duke@435	994	LIR_Opr _length;
duke@435	995	LIR_Opr _tmp;
duke@435	996	ciArrayKlass* _expected_type;
duke@435	997	int _flags;
duke@435	998
duke@435	999	public:
duke@435	1000	enum Flags {
duke@435	1001	src_null_check = 1 << 0,
duke@435	1002	dst_null_check = 1 << 1,
duke@435	1003	src_pos_positive_check = 1 << 2,
duke@435	1004	dst_pos_positive_check = 1 << 3,
duke@435	1005	length_positive_check = 1 << 4,
duke@435	1006	src_range_check = 1 << 5,
duke@435	1007	dst_range_check = 1 << 6,
duke@435	1008	type_check = 1 << 7,
duke@435	1009	all_flags = (1 << 8) - 1
duke@435	1010	};
duke@435	1011
duke@435	1012	LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length, LIR_Opr tmp,
duke@435	1013	ciArrayKlass* expected_type, int flags, CodeEmitInfo* info);
duke@435	1014
duke@435	1015	LIR_Opr src() const { return _src; }
duke@435	1016	LIR_Opr src_pos() const { return _src_pos; }
duke@435	1017	LIR_Opr dst() const { return _dst; }
duke@435	1018	LIR_Opr dst_pos() const { return _dst_pos; }
duke@435	1019	LIR_Opr length() const { return _length; }
duke@435	1020	LIR_Opr tmp() const { return _tmp; }
duke@435	1021	int flags() const { return _flags; }
duke@435	1022	ciArrayKlass* expected_type() const { return _expected_type; }
duke@435	1023	ArrayCopyStub* stub() const { return _stub; }
duke@435	1024
duke@435	1025	virtual void emit_code(LIR_Assembler* masm);
duke@435	1026	virtual LIR_OpArrayCopy* as_OpArrayCopy() { return this; }
duke@435	1027	void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1028	};
duke@435	1029
duke@435	1030
duke@435	1031	// --------------------------------------------------
duke@435	1032	// LIR_Op0
duke@435	1033	// --------------------------------------------------
duke@435	1034	class LIR_Op0: public LIR_Op {
duke@435	1035	friend class LIR_OpVisitState;
duke@435	1036
duke@435	1037	public:
duke@435	1038	LIR_Op0(LIR_Code code)
duke@435	1039	: LIR_Op(code, LIR_OprFact::illegalOpr, NULL) { assert(is_in_range(code, begin_op0, end_op0), "code check"); }
duke@435	1040	LIR_Op0(LIR_Code code, LIR_Opr result, CodeEmitInfo* info = NULL)
duke@435	1041	: LIR_Op(code, result, info) { assert(is_in_range(code, begin_op0, end_op0), "code check"); }
duke@435	1042
duke@435	1043	virtual void emit_code(LIR_Assembler* masm);
duke@435	1044	virtual LIR_Op0* as_Op0() { return this; }
duke@435	1045	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1046	};
duke@435	1047
duke@435	1048
duke@435	1049	// --------------------------------------------------
duke@435	1050	// LIR_Op1
duke@435	1051	// --------------------------------------------------
duke@435	1052
duke@435	1053	class LIR_Op1: public LIR_Op {
duke@435	1054	friend class LIR_OpVisitState;
duke@435	1055
duke@435	1056	protected:
duke@435	1057	LIR_Opr _opr; // input operand
duke@435	1058	BasicType _type; // Operand types
duke@435	1059	LIR_PatchCode _patch; // only required with patchin (NEEDS_CLEANUP: do we want a special instruction for patching?)
duke@435	1060
duke@435	1061	static void print_patch_code(outputStream* out, LIR_PatchCode code);
duke@435	1062
duke@435	1063	void set_kind(LIR_MoveKind kind) {
duke@435	1064	assert(code() == lir_move, "must be");
duke@435	1065	_flags = kind;
duke@435	1066	}
duke@435	1067
duke@435	1068	public:
duke@435	1069	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	1070	: LIR_Op(code, result, info)
duke@435	1071	, _opr(opr)
duke@435	1072	, _patch(patch)
duke@435	1073	, _type(type) { assert(is_in_range(code, begin_op1, end_op1), "code check"); }
duke@435	1074
duke@435	1075	LIR_Op1(LIR_Code code, LIR_Opr opr, LIR_Opr result, BasicType type, LIR_PatchCode patch, CodeEmitInfo* info, LIR_MoveKind kind)
duke@435	1076	: LIR_Op(code, result, info)
duke@435	1077	, _opr(opr)
duke@435	1078	, _patch(patch)
duke@435	1079	, _type(type) {
duke@435	1080	assert(code == lir_move, "must be");
duke@435	1081	set_kind(kind);
duke@435	1082	}
duke@435	1083
duke@435	1084	LIR_Op1(LIR_Code code, LIR_Opr opr, CodeEmitInfo* info)
duke@435	1085	: LIR_Op(code, LIR_OprFact::illegalOpr, info)
duke@435	1086	, _opr(opr)
duke@435	1087	, _patch(lir_patch_none)
duke@435	1088	, _type(T_ILLEGAL) { assert(is_in_range(code, begin_op1, end_op1), "code check"); }
duke@435	1089
duke@435	1090	LIR_Opr in_opr() const { return _opr; }
duke@435	1091	LIR_PatchCode patch_code() const { return _patch; }
duke@435	1092	BasicType type() const { return _type; }
duke@435	1093
duke@435	1094	LIR_MoveKind move_kind() const {
duke@435	1095	assert(code() == lir_move, "must be");
duke@435	1096	return (LIR_MoveKind)_flags;
duke@435	1097	}
duke@435	1098
duke@435	1099	virtual void emit_code(LIR_Assembler* masm);
duke@435	1100	virtual LIR_Op1* as_Op1() { return this; }
duke@435	1101	virtual const char * name() const PRODUCT_RETURN0;
duke@435	1102
duke@435	1103	void set_in_opr(LIR_Opr opr) { _opr = opr; }
duke@435	1104
duke@435	1105	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1106	virtual void verify() const;
duke@435	1107	};
duke@435	1108
duke@435	1109
duke@435	1110	// for runtime calls
duke@435	1111	class LIR_OpRTCall: public LIR_OpCall {
duke@435	1112	friend class LIR_OpVisitState;
duke@435	1113
duke@435	1114	private:
duke@435	1115	LIR_Opr _tmp;
duke@435	1116	public:
duke@435	1117	LIR_OpRTCall(address addr, LIR_Opr tmp,
duke@435	1118	LIR_Opr result, LIR_OprList* arguments, CodeEmitInfo* info = NULL)
duke@435	1119	: LIR_OpCall(lir_rtcall, addr, result, arguments, info)
duke@435	1120	, _tmp(tmp) {}
duke@435	1121
duke@435	1122	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1123	virtual void emit_code(LIR_Assembler* masm);
duke@435	1124	virtual LIR_OpRTCall* as_OpRTCall() { return this; }
duke@435	1125
duke@435	1126	LIR_Opr tmp() const { return _tmp; }
duke@435	1127
duke@435	1128	virtual void verify() const;
duke@435	1129	};
duke@435	1130
duke@435	1131
duke@435	1132	class LIR_OpBranch: public LIR_Op {
duke@435	1133	friend class LIR_OpVisitState;
duke@435	1134
duke@435	1135	private:
duke@435	1136	LIR_Condition _cond;
duke@435	1137	BasicType _type;
duke@435	1138	Label* _label;
duke@435	1139	BlockBegin* _block; // if this is a branch to a block, this is the block
duke@435	1140	BlockBegin* _ublock; // if this is a float-branch, this is the unorderd block
duke@435	1141	CodeStub* _stub; // if this is a branch to a stub, this is the stub
duke@435	1142
duke@435	1143	public:
duke@435	1144	LIR_OpBranch(LIR_Condition cond, Label* lbl)
duke@435	1145	: LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*) NULL)
duke@435	1146	, _cond(cond)
duke@435	1147	, _label(lbl)
duke@435	1148	, _block(NULL)
duke@435	1149	, _ublock(NULL)
duke@435	1150	, _stub(NULL) { }
duke@435	1151
duke@435	1152	LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block);
duke@435	1153	LIR_OpBranch(LIR_Condition cond, BasicType type, CodeStub* stub);
duke@435	1154
duke@435	1155	// for unordered comparisons
duke@435	1156	LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* ublock);
duke@435	1157
duke@435	1158	LIR_Condition cond() const { return _cond; }
duke@435	1159	BasicType type() const { return _type; }
duke@435	1160	Label* label() const { return _label; }
duke@435	1161	BlockBegin* block() const { return _block; }
duke@435	1162	BlockBegin* ublock() const { return _ublock; }
duke@435	1163	CodeStub* stub() const { return _stub; }
duke@435	1164
duke@435	1165	void change_block(BlockBegin* b);
duke@435	1166	void change_ublock(BlockBegin* b);
duke@435	1167	void negate_cond();
duke@435	1168
duke@435	1169	virtual void emit_code(LIR_Assembler* masm);
duke@435	1170	virtual LIR_OpBranch* as_OpBranch() { 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	class ConversionStub;
duke@435	1176
duke@435	1177	class LIR_OpConvert: public LIR_Op1 {
duke@435	1178	friend class LIR_OpVisitState;
duke@435	1179
duke@435	1180	private:
duke@435	1181	Bytecodes::Code _bytecode;
duke@435	1182	ConversionStub* _stub;
duke@435	1183
duke@435	1184	public:
duke@435	1185	LIR_OpConvert(Bytecodes::Code code, LIR_Opr opr, LIR_Opr result, ConversionStub* stub)
duke@435	1186	: LIR_Op1(lir_convert, opr, result)
duke@435	1187	, _stub(stub)
duke@435	1188	, _bytecode(code) {}
duke@435	1189
duke@435	1190	Bytecodes::Code bytecode() const { return _bytecode; }
duke@435	1191	ConversionStub* stub() const { return _stub; }
duke@435	1192
duke@435	1193	virtual void emit_code(LIR_Assembler* masm);
duke@435	1194	virtual LIR_OpConvert* as_OpConvert() { return this; }
duke@435	1195	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1196
duke@435	1197	static void print_bytecode(outputStream* out, Bytecodes::Code code) PRODUCT_RETURN;
duke@435	1198	};
duke@435	1199
duke@435	1200
duke@435	1201	// LIR_OpAllocObj
duke@435	1202	class LIR_OpAllocObj : public LIR_Op1 {
duke@435	1203	friend class LIR_OpVisitState;
duke@435	1204
duke@435	1205	private:
duke@435	1206	LIR_Opr _tmp1;
duke@435	1207	LIR_Opr _tmp2;
duke@435	1208	LIR_Opr _tmp3;
duke@435	1209	LIR_Opr _tmp4;
duke@435	1210	int _hdr_size;
duke@435	1211	int _obj_size;
duke@435	1212	CodeStub* _stub;
duke@435	1213	bool _init_check;
duke@435	1214
duke@435	1215	public:
duke@435	1216	LIR_OpAllocObj(LIR_Opr klass, LIR_Opr result,
duke@435	1217	LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
duke@435	1218	int hdr_size, int obj_size, bool init_check, CodeStub* stub)
duke@435	1219	: LIR_Op1(lir_alloc_object, klass, result)
duke@435	1220	, _tmp1(t1)
duke@435	1221	, _tmp2(t2)
duke@435	1222	, _tmp3(t3)
duke@435	1223	, _tmp4(t4)
duke@435	1224	, _hdr_size(hdr_size)
duke@435	1225	, _obj_size(obj_size)
duke@435	1226	, _init_check(init_check)
duke@435	1227	, _stub(stub) { }
duke@435	1228
duke@435	1229	LIR_Opr klass() const { return in_opr(); }
duke@435	1230	LIR_Opr obj() const { return result_opr(); }
duke@435	1231	LIR_Opr tmp1() const { return _tmp1; }
duke@435	1232	LIR_Opr tmp2() const { return _tmp2; }
duke@435	1233	LIR_Opr tmp3() const { return _tmp3; }
duke@435	1234	LIR_Opr tmp4() const { return _tmp4; }
duke@435	1235	int header_size() const { return _hdr_size; }
duke@435	1236	int object_size() const { return _obj_size; }
duke@435	1237	bool init_check() const { return _init_check; }
duke@435	1238	CodeStub* stub() const { return _stub; }
duke@435	1239
duke@435	1240	virtual void emit_code(LIR_Assembler* masm);
duke@435	1241	virtual LIR_OpAllocObj * as_OpAllocObj () { return this; }
duke@435	1242	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1243	};
duke@435	1244
duke@435	1245
duke@435	1246	// LIR_OpRoundFP
duke@435	1247	class LIR_OpRoundFP : public LIR_Op1 {
duke@435	1248	friend class LIR_OpVisitState;
duke@435	1249
duke@435	1250	private:
duke@435	1251	LIR_Opr _tmp;
duke@435	1252
duke@435	1253	public:
duke@435	1254	LIR_OpRoundFP(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result)
duke@435	1255	: LIR_Op1(lir_roundfp, reg, result)
duke@435	1256	, _tmp(stack_loc_temp) {}
duke@435	1257
duke@435	1258	LIR_Opr tmp() const { return _tmp; }
duke@435	1259	virtual LIR_OpRoundFP* as_OpRoundFP() { return this; }
duke@435	1260	void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1261	};
duke@435	1262
duke@435	1263	// LIR_OpTypeCheck
duke@435	1264	class LIR_OpTypeCheck: public LIR_Op {
duke@435	1265	friend class LIR_OpVisitState;
duke@435	1266
duke@435	1267	private:
duke@435	1268	LIR_Opr _object;
duke@435	1269	LIR_Opr _array;
duke@435	1270	ciKlass* _klass;
duke@435	1271	LIR_Opr _tmp1;
duke@435	1272	LIR_Opr _tmp2;
duke@435	1273	LIR_Opr _tmp3;
duke@435	1274	bool _fast_check;
duke@435	1275	CodeEmitInfo* _info_for_patch;
duke@435	1276	CodeEmitInfo* _info_for_exception;
duke@435	1277	CodeStub* _stub;
duke@435	1278	// Helpers for Tier1UpdateMethodData
duke@435	1279	ciMethod* _profiled_method;
duke@435	1280	int _profiled_bci;
duke@435	1281
duke@435	1282	public:
duke@435	1283	LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
duke@435	1284	LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
duke@435	1285	CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
duke@435	1286	ciMethod* profiled_method, int profiled_bci);
duke@435	1287	LIR_OpTypeCheck(LIR_Code code, LIR_Opr object, LIR_Opr array,
duke@435	1288	LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception,
duke@435	1289	ciMethod* profiled_method, int profiled_bci);
duke@435	1290
duke@435	1291	LIR_Opr object() const { return _object; }
duke@435	1292	LIR_Opr array() const { assert(code() == lir_store_check, "not valid"); return _array; }
duke@435	1293	LIR_Opr tmp1() const { return _tmp1; }
duke@435	1294	LIR_Opr tmp2() const { return _tmp2; }
duke@435	1295	LIR_Opr tmp3() const { return _tmp3; }
duke@435	1296	ciKlass* klass() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _klass; }
duke@435	1297	bool fast_check() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _fast_check; }
duke@435	1298	CodeEmitInfo* info_for_patch() const { return _info_for_patch; }
duke@435	1299	CodeEmitInfo* info_for_exception() const { return _info_for_exception; }
duke@435	1300	CodeStub* stub() const { return _stub; }
duke@435	1301
duke@435	1302	// methodDataOop profiling
duke@435	1303	ciMethod* profiled_method() { return _profiled_method; }
duke@435	1304	int profiled_bci() { return _profiled_bci; }
duke@435	1305
duke@435	1306	virtual void emit_code(LIR_Assembler* masm);
duke@435	1307	virtual LIR_OpTypeCheck* as_OpTypeCheck() { return this; }
duke@435	1308	void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1309	};
duke@435	1310
duke@435	1311	// LIR_Op2
duke@435	1312	class LIR_Op2: public LIR_Op {
duke@435	1313	friend class LIR_OpVisitState;
duke@435	1314
duke@435	1315	int _fpu_stack_size; // for sin/cos implementation on Intel
duke@435	1316
duke@435	1317	protected:
duke@435	1318	LIR_Opr _opr1;
duke@435	1319	LIR_Opr _opr2;
duke@435	1320	BasicType _type;
duke@435	1321	LIR_Opr _tmp;
duke@435	1322	LIR_Condition _condition;
duke@435	1323
duke@435	1324	void verify() const;
duke@435	1325
duke@435	1326	public:
duke@435	1327	LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, CodeEmitInfo* info = NULL)
duke@435	1328	: LIR_Op(code, LIR_OprFact::illegalOpr, info)
duke@435	1329	, _opr1(opr1)
duke@435	1330	, _opr2(opr2)
duke@435	1331	, _type(T_ILLEGAL)
duke@435	1332	, _condition(condition)
duke@435	1333	, _fpu_stack_size(0)
duke@435	1334	, _tmp(LIR_OprFact::illegalOpr) {
duke@435	1335	assert(code == lir_cmp, "code check");
duke@435	1336	}
duke@435	1337
duke@435	1338	LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result)
duke@435	1339	: LIR_Op(code, result, NULL)
duke@435	1340	, _opr1(opr1)
duke@435	1341	, _opr2(opr2)
duke@435	1342	, _type(T_ILLEGAL)
duke@435	1343	, _condition(condition)
duke@435	1344	, _fpu_stack_size(0)
duke@435	1345	, _tmp(LIR_OprFact::illegalOpr) {
duke@435	1346	assert(code == lir_cmove, "code check");
duke@435	1347	}
duke@435	1348
duke@435	1349	LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result = LIR_OprFact::illegalOpr,
duke@435	1350	CodeEmitInfo* info = NULL, BasicType type = T_ILLEGAL)
duke@435	1351	: LIR_Op(code, result, info)
duke@435	1352	, _opr1(opr1)
duke@435	1353	, _opr2(opr2)
duke@435	1354	, _type(type)
duke@435	1355	, _condition(lir_cond_unknown)
duke@435	1356	, _fpu_stack_size(0)
duke@435	1357	, _tmp(LIR_OprFact::illegalOpr) {
duke@435	1358	assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check");
duke@435	1359	}
duke@435	1360
duke@435	1361	LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, LIR_Opr tmp)
duke@435	1362	: LIR_Op(code, result, NULL)
duke@435	1363	, _opr1(opr1)
duke@435	1364	, _opr2(opr2)
duke@435	1365	, _type(T_ILLEGAL)
duke@435	1366	, _condition(lir_cond_unknown)
duke@435	1367	, _fpu_stack_size(0)
duke@435	1368	, _tmp(tmp) {
duke@435	1369	assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check");
duke@435	1370	}
duke@435	1371
duke@435	1372	LIR_Opr in_opr1() const { return _opr1; }
duke@435	1373	LIR_Opr in_opr2() const { return _opr2; }
duke@435	1374	BasicType type() const { return _type; }
duke@435	1375	LIR_Opr tmp_opr() const { return _tmp; }
duke@435	1376	LIR_Condition condition() const {
duke@435	1377	assert(code() == lir_cmp || code() == lir_cmove, "only valid for cmp and cmove"); return _condition;
duke@435	1378	}
duke@435	1379
duke@435	1380	void set_fpu_stack_size(int size) { _fpu_stack_size = size; }
duke@435	1381	int fpu_stack_size() const { return _fpu_stack_size; }
duke@435	1382
duke@435	1383	void set_in_opr1(LIR_Opr opr) { _opr1 = opr; }
duke@435	1384	void set_in_opr2(LIR_Opr opr) { _opr2 = opr; }
duke@435	1385
duke@435	1386	virtual void emit_code(LIR_Assembler* masm);
duke@435	1387	virtual LIR_Op2* as_Op2() { return this; }
duke@435	1388	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1389	};
duke@435	1390
duke@435	1391	class LIR_OpAllocArray : public LIR_Op {
duke@435	1392	friend class LIR_OpVisitState;
duke@435	1393
duke@435	1394	private:
duke@435	1395	LIR_Opr _klass;
duke@435	1396	LIR_Opr _len;
duke@435	1397	LIR_Opr _tmp1;
duke@435	1398	LIR_Opr _tmp2;
duke@435	1399	LIR_Opr _tmp3;
duke@435	1400	LIR_Opr _tmp4;
duke@435	1401	BasicType _type;
duke@435	1402	CodeStub* _stub;
duke@435	1403
duke@435	1404	public:
duke@435	1405	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	1406	: LIR_Op(lir_alloc_array, result, NULL)
duke@435	1407	, _klass(klass)
duke@435	1408	, _len(len)
duke@435	1409	, _tmp1(t1)
duke@435	1410	, _tmp2(t2)
duke@435	1411	, _tmp3(t3)
duke@435	1412	, _tmp4(t4)
duke@435	1413	, _type(type)
duke@435	1414	, _stub(stub) {}
duke@435	1415
duke@435	1416	LIR_Opr klass() const { return _klass; }
duke@435	1417	LIR_Opr len() const { return _len; }
duke@435	1418	LIR_Opr obj() const { return result_opr(); }
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	LIR_Opr tmp4() const { return _tmp4; }
duke@435	1423	BasicType type() const { return _type; }
duke@435	1424	CodeStub* stub() const { return _stub; }
duke@435	1425
duke@435	1426	virtual void emit_code(LIR_Assembler* masm);
duke@435	1427	virtual LIR_OpAllocArray * as_OpAllocArray () { return this; }
duke@435	1428	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1429	};
duke@435	1430
duke@435	1431
duke@435	1432	class LIR_Op3: public LIR_Op {
duke@435	1433	friend class LIR_OpVisitState;
duke@435	1434
duke@435	1435	private:
duke@435	1436	LIR_Opr _opr1;
duke@435	1437	LIR_Opr _opr2;
duke@435	1438	LIR_Opr _opr3;
duke@435	1439	public:
duke@435	1440	LIR_Op3(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr opr3, LIR_Opr result, CodeEmitInfo* info = NULL)
duke@435	1441	: LIR_Op(code, result, info)
duke@435	1442	, _opr1(opr1)
duke@435	1443	, _opr2(opr2)
duke@435	1444	, _opr3(opr3) { assert(is_in_range(code, begin_op3, end_op3), "code check"); }
duke@435	1445	LIR_Opr in_opr1() const { return _opr1; }
duke@435	1446	LIR_Opr in_opr2() const { return _opr2; }
duke@435	1447	LIR_Opr in_opr3() const { return _opr3; }
duke@435	1448
duke@435	1449	virtual void emit_code(LIR_Assembler* masm);
duke@435	1450	virtual LIR_Op3* as_Op3() { return this; }
duke@435	1451	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1452	};
duke@435	1453
duke@435	1454
duke@435	1455	//--------------------------------
duke@435	1456	class LabelObj: public CompilationResourceObj {
duke@435	1457	private:
duke@435	1458	Label _label;
duke@435	1459	public:
duke@435	1460	LabelObj() {}
duke@435	1461	Label* label() { return &_label; }
duke@435	1462	};
duke@435	1463
duke@435	1464
duke@435	1465	class LIR_OpLock: public LIR_Op {
duke@435	1466	friend class LIR_OpVisitState;
duke@435	1467
duke@435	1468	private:
duke@435	1469	LIR_Opr _hdr;
duke@435	1470	LIR_Opr _obj;
duke@435	1471	LIR_Opr _lock;
duke@435	1472	LIR_Opr _scratch;
duke@435	1473	CodeStub* _stub;
duke@435	1474	public:
duke@435	1475	LIR_OpLock(LIR_Code code, LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info)
duke@435	1476	: LIR_Op(code, LIR_OprFact::illegalOpr, info)
duke@435	1477	, _hdr(hdr)
duke@435	1478	, _obj(obj)
duke@435	1479	, _lock(lock)
duke@435	1480	, _scratch(scratch)
duke@435	1481	, _stub(stub) {}
duke@435	1482
duke@435	1483	LIR_Opr hdr_opr() const { return _hdr; }
duke@435	1484	LIR_Opr obj_opr() const { return _obj; }
duke@435	1485	LIR_Opr lock_opr() const { return _lock; }
duke@435	1486	LIR_Opr scratch_opr() const { return _scratch; }
duke@435	1487	CodeStub* stub() const { return _stub; }
duke@435	1488
duke@435	1489	virtual void emit_code(LIR_Assembler* masm);
duke@435	1490	virtual LIR_OpLock* as_OpLock() { return this; }
duke@435	1491	void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1492	};
duke@435	1493
duke@435	1494
duke@435	1495	class LIR_OpDelay: public LIR_Op {
duke@435	1496	friend class LIR_OpVisitState;
duke@435	1497
duke@435	1498	private:
duke@435	1499	LIR_Op* _op;
duke@435	1500
duke@435	1501	public:
duke@435	1502	LIR_OpDelay(LIR_Op* op, CodeEmitInfo* info):
duke@435	1503	LIR_Op(lir_delay_slot, LIR_OprFact::illegalOpr, info),
duke@435	1504	_op(op) {
duke@435	1505	assert(op->code() == lir_nop || LIRFillDelaySlots, "should be filling with nops");
duke@435	1506	}
duke@435	1507	virtual void emit_code(LIR_Assembler* masm);
duke@435	1508	virtual LIR_OpDelay* as_OpDelay() { return this; }
duke@435	1509	void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1510	LIR_Op* delay_op() const { return _op; }
duke@435	1511	CodeEmitInfo* call_info() const { return info(); }
duke@435	1512	};
duke@435	1513
duke@435	1514
duke@435	1515	// LIR_OpCompareAndSwap
duke@435	1516	class LIR_OpCompareAndSwap : public LIR_Op {
duke@435	1517	friend class LIR_OpVisitState;
duke@435	1518
duke@435	1519	private:
duke@435	1520	LIR_Opr _addr;
duke@435	1521	LIR_Opr _cmp_value;
duke@435	1522	LIR_Opr _new_value;
duke@435	1523	LIR_Opr _tmp1;
duke@435	1524	LIR_Opr _tmp2;
duke@435	1525
duke@435	1526	public:
duke@435	1527	LIR_OpCompareAndSwap(LIR_Code code, LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, LIR_Opr t1, LIR_Opr t2)
duke@435	1528	: LIR_Op(code, LIR_OprFact::illegalOpr, NULL) // no result, no info
duke@435	1529	, _addr(addr)
duke@435	1530	, _cmp_value(cmp_value)
duke@435	1531	, _new_value(new_value)
duke@435	1532	, _tmp1(t1)
duke@435	1533	, _tmp2(t2) { }
duke@435	1534
duke@435	1535	LIR_Opr addr() const { return _addr; }
duke@435	1536	LIR_Opr cmp_value() const { return _cmp_value; }
duke@435	1537	LIR_Opr new_value() const { return _new_value; }
duke@435	1538	LIR_Opr tmp1() const { return _tmp1; }
duke@435	1539	LIR_Opr tmp2() const { return _tmp2; }
duke@435	1540
duke@435	1541	virtual void emit_code(LIR_Assembler* masm);
duke@435	1542	virtual LIR_OpCompareAndSwap * as_OpCompareAndSwap () { return this; }
duke@435	1543	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1544	};
duke@435	1545
duke@435	1546	// LIR_OpProfileCall
duke@435	1547	class LIR_OpProfileCall : public LIR_Op {
duke@435	1548	friend class LIR_OpVisitState;
duke@435	1549
duke@435	1550	private:
duke@435	1551	ciMethod* _profiled_method;
duke@435	1552	int _profiled_bci;
duke@435	1553	LIR_Opr _mdo;
duke@435	1554	LIR_Opr _recv;
duke@435	1555	LIR_Opr _tmp1;
duke@435	1556	ciKlass* _known_holder;
duke@435	1557
duke@435	1558	public:
duke@435	1559	// Destroys recv
duke@435	1560	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	1561	: LIR_Op(code, LIR_OprFact::illegalOpr, NULL) // no result, no info
duke@435	1562	, _profiled_method(profiled_method)
duke@435	1563	, _profiled_bci(profiled_bci)
duke@435	1564	, _mdo(mdo)
duke@435	1565	, _recv(recv)
duke@435	1566	, _tmp1(t1)
duke@435	1567	, _known_holder(known_holder) { }
duke@435	1568
duke@435	1569	ciMethod* profiled_method() const { return _profiled_method; }
duke@435	1570	int profiled_bci() const { return _profiled_bci; }
duke@435	1571	LIR_Opr mdo() const { return _mdo; }
duke@435	1572	LIR_Opr recv() const { return _recv; }
duke@435	1573	LIR_Opr tmp1() const { return _tmp1; }
duke@435	1574	ciKlass* known_holder() const { return _known_holder; }
duke@435	1575
duke@435	1576	virtual void emit_code(LIR_Assembler* masm);
duke@435	1577	virtual LIR_OpProfileCall* as_OpProfileCall() { return this; }
duke@435	1578	virtual void print_instr(outputStream* out) const PRODUCT_RETURN;
duke@435	1579	};
duke@435	1580
duke@435	1581
duke@435	1582	class LIR_InsertionBuffer;
duke@435	1583
duke@435	1584	//--------------------------------LIR_List---------------------------------------------------
duke@435	1585	// Maintains a list of LIR instructions (one instance of LIR_List per basic block)
duke@435	1586	// The LIR instructions are appended by the LIR_List class itself;
duke@435	1587	//
duke@435	1588	// Notes:
duke@435	1589	// - all offsets are(should be) in bytes
duke@435	1590	// - local positions are specified with an offset, with offset 0 being local 0
duke@435	1591
duke@435	1592	class LIR_List: public CompilationResourceObj {
duke@435	1593	private:
duke@435	1594	LIR_OpList _operations;
duke@435	1595
duke@435	1596	Compilation* _compilation;
duke@435	1597	#ifndef PRODUCT
duke@435	1598	BlockBegin* _block;
duke@435	1599	#endif
duke@435	1600	#ifdef ASSERT
duke@435	1601	const char * _file;
duke@435	1602	int _line;
duke@435	1603	#endif
duke@435	1604
duke@435	1605	void append(LIR_Op* op) {
duke@435	1606	if (op->source() == NULL)
duke@435	1607	op->set_source(_compilation->current_instruction());
duke@435	1608	#ifndef PRODUCT
duke@435	1609	if (PrintIRWithLIR) {
duke@435	1610	_compilation->maybe_print_current_instruction();
duke@435	1611	op->print(); tty->cr();
duke@435	1612	}
duke@435	1613	#endif // PRODUCT
duke@435	1614
duke@435	1615	_operations.append(op);
duke@435	1616
duke@435	1617	#ifdef ASSERT
duke@435	1618	op->verify();
duke@435	1619	op->set_file_and_line(_file, _line);
duke@435	1620	_file = NULL;
duke@435	1621	_line = 0;
duke@435	1622	#endif
duke@435	1623	}
duke@435	1624
duke@435	1625	public:
duke@435	1626	LIR_List(Compilation* compilation, BlockBegin* block = NULL);
duke@435	1627
duke@435	1628	#ifdef ASSERT
duke@435	1629	void set_file_and_line(const char * file, int line);
duke@435	1630	#endif
duke@435	1631
duke@435	1632	//---------- accessors ---------------
duke@435	1633	LIR_OpList* instructions_list() { return &_operations; }
duke@435	1634	int length() const { return _operations.length(); }
duke@435	1635	LIR_Op* at(int i) const { return _operations.at(i); }
duke@435	1636
duke@435	1637	NOT_PRODUCT(BlockBegin* block() const { return _block; });
duke@435	1638
duke@435	1639	// insert LIR_Ops in buffer to right places in LIR_List
duke@435	1640	void append(LIR_InsertionBuffer* buffer);
duke@435	1641
duke@435	1642	//---------- mutators ---------------
duke@435	1643	void insert_before(int i, LIR_List* op_list) { _operations.insert_before(i, op_list->instructions_list()); }
duke@435	1644	void insert_before(int i, LIR_Op* op) { _operations.insert_before(i, op); }
duke@435	1645
duke@435	1646	//---------- printing -------------
duke@435	1647	void print_instructions() PRODUCT_RETURN;
duke@435	1648
duke@435	1649
duke@435	1650	//---------- instructions -------------
duke@435	1651	void call_opt_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
duke@435	1652	address dest, LIR_OprList* arguments,
duke@435	1653	CodeEmitInfo* info) {
duke@435	1654	append(new LIR_OpJavaCall(lir_optvirtual_call, method, receiver, result, dest, arguments, info));
duke@435	1655	}
duke@435	1656	void call_static(ciMethod* method, LIR_Opr result,
duke@435	1657	address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
duke@435	1658	append(new LIR_OpJavaCall(lir_static_call, method, LIR_OprFact::illegalOpr, result, dest, arguments, info));
duke@435	1659	}
duke@435	1660	void call_icvirtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
duke@435	1661	address dest, LIR_OprList* arguments, CodeEmitInfo* info) {
duke@435	1662	append(new LIR_OpJavaCall(lir_icvirtual_call, method, receiver, result, dest, arguments, info));
duke@435	1663	}
duke@435	1664	void call_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result,
duke@435	1665	intptr_t vtable_offset, LIR_OprList* arguments, CodeEmitInfo* info) {
duke@435	1666	append(new LIR_OpJavaCall(lir_virtual_call, method, receiver, result, vtable_offset, arguments, info));
duke@435	1667	}
duke@435	1668
duke@435	1669	void get_thread(LIR_Opr result) { append(new LIR_Op0(lir_get_thread, result)); }
duke@435	1670	void word_align() { append(new LIR_Op0(lir_word_align)); }
duke@435	1671	void membar() { append(new LIR_Op0(lir_membar)); }
duke@435	1672	void membar_acquire() { append(new LIR_Op0(lir_membar_acquire)); }
duke@435	1673	void membar_release() { append(new LIR_Op0(lir_membar_release)); }
duke@435	1674
duke@435	1675	void nop() { append(new LIR_Op0(lir_nop)); }
duke@435	1676	void build_frame() { append(new LIR_Op0(lir_build_frame)); }
duke@435	1677
duke@435	1678	void std_entry(LIR_Opr receiver) { append(new LIR_Op0(lir_std_entry, receiver)); }
duke@435	1679	void osr_entry(LIR_Opr osrPointer) { append(new LIR_Op0(lir_osr_entry, osrPointer)); }
duke@435	1680
duke@435	1681	void branch_destination(Label* lbl) { append(new LIR_OpLabel(lbl)); }
duke@435	1682
duke@435	1683	void negate(LIR_Opr from, LIR_Opr to) { append(new LIR_Op1(lir_neg, from, to)); }
duke@435	1684	void leal(LIR_Opr from, LIR_Opr result_reg) { append(new LIR_Op1(lir_leal, from, result_reg)); }
duke@435	1685
duke@435	1686	// result is a stack location for old backend and vreg for UseLinearScan
duke@435	1687	// stack_loc_temp is an illegal register for old backend
duke@435	1688	void roundfp(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result) { append(new LIR_OpRoundFP(reg, stack_loc_temp, result)); }
duke@435	1689	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	1690	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	1691	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	1692	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	1693	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	1694	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	1695
duke@435	1696	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	1697
duke@435	1698	void oop2reg (jobject o, LIR_Opr reg) { append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o), reg)); }
duke@435	1699	void oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info);
duke@435	1700
duke@435	1701	void return_op(LIR_Opr result) { append(new LIR_Op1(lir_return, result)); }
duke@435	1702
duke@435	1703	void safepoint(LIR_Opr tmp, CodeEmitInfo* info) { append(new LIR_Op1(lir_safepoint, tmp, info)); }
duke@435	1704
duke@435	1705	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	1706
duke@435	1707	void logical_and (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_and, left, right, dst)); }
duke@435	1708	void logical_or (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_or, left, right, dst)); }
duke@435	1709	void logical_xor (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_xor, left, right, dst)); }
duke@435	1710
duke@435	1711	void null_check(LIR_Opr opr, CodeEmitInfo* info) { append(new LIR_Op1(lir_null_check, opr, info)); }
duke@435	1712	void throw_exception(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) { append(new LIR_Op2(lir_throw, exceptionPC, exceptionOop, LIR_OprFact::illegalOpr, info)); }
duke@435	1713	void unwind_exception(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) { append(new LIR_Op2(lir_unwind, exceptionPC, exceptionOop, LIR_OprFact::illegalOpr, info)); }
duke@435	1714
duke@435	1715	void compare_to (LIR_Opr left, LIR_Opr right, LIR_Opr dst) {
duke@435	1716	append(new LIR_Op2(lir_compare_to, left, right, dst));
duke@435	1717	}
duke@435	1718
duke@435	1719	void push(LIR_Opr opr) { append(new LIR_Op1(lir_push, opr)); }
duke@435	1720	void pop(LIR_Opr reg) { append(new LIR_Op1(lir_pop, reg)); }
duke@435	1721
duke@435	1722	void cmp(LIR_Condition condition, LIR_Opr left, LIR_Opr right, CodeEmitInfo* info = NULL) {
duke@435	1723	append(new LIR_Op2(lir_cmp, condition, left, right, info));
duke@435	1724	}
duke@435	1725	void cmp(LIR_Condition condition, LIR_Opr left, int right, CodeEmitInfo* info = NULL) {
duke@435	1726	cmp(condition, left, LIR_OprFact::intConst(right), info);
duke@435	1727	}
duke@435	1728
duke@435	1729	void cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info);
duke@435	1730	void cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info);
duke@435	1731
duke@435	1732	void cmove(LIR_Condition condition, LIR_Opr src1, LIR_Opr src2, LIR_Opr dst) {
duke@435	1733	append(new LIR_Op2(lir_cmove, condition, src1, src2, dst));
duke@435	1734	}
duke@435	1735
duke@435	1736	void cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, LIR_Opr t1, LIR_Opr t2);
duke@435	1737	void cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, LIR_Opr t1, LIR_Opr t2);
duke@435	1738	void cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, LIR_Opr t1, LIR_Opr t2);
duke@435	1739
duke@435	1740	void abs (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_abs , from, tmp, to)); }
duke@435	1741	void sqrt(LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_sqrt, from, tmp, to)); }
duke@435	1742	void log (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_log, from, tmp, to)); }
duke@435	1743	void log10 (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_log10, from, tmp, to)); }
duke@435	1744	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	1745	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	1746	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	1747
duke@435	1748	void add (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_add, left, right, res)); }
duke@435	1749	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	1750	void mul (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_mul, left, right, res)); }
duke@435	1751	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	1752	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	1753	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	1754	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	1755
duke@435	1756	void volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
duke@435	1757	void volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code);
duke@435	1758
duke@435	1759	void load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none);
duke@435	1760
duke@435	1761	void prefetch(LIR_Address* addr, bool is_store);
duke@435	1762
duke@435	1763	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	1764	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	1765	void store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none);
duke@435	1766	void volatile_store_mem_reg(LIR_Opr src, LIR_Address* address, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none);
duke@435	1767	void volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code);
duke@435	1768
duke@435	1769	void idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
duke@435	1770	void idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
duke@435	1771	void irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
duke@435	1772	void irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info);
duke@435	1773
duke@435	1774	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	1775	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	1776
duke@435	1777	// jump is an unconditional branch
duke@435	1778	void jump(BlockBegin* block) {
duke@435	1779	append(new LIR_OpBranch(lir_cond_always, T_ILLEGAL, block));
duke@435	1780	}
duke@435	1781	void jump(CodeStub* stub) {
duke@435	1782	append(new LIR_OpBranch(lir_cond_always, T_ILLEGAL, stub));
duke@435	1783	}
duke@435	1784	void branch(LIR_Condition cond, Label* lbl) { append(new LIR_OpBranch(cond, lbl)); }
duke@435	1785	void branch(LIR_Condition cond, BasicType type, BlockBegin* block) {
duke@435	1786	assert(type != T_FLOAT && type != T_DOUBLE, "no fp comparisons");
duke@435	1787	append(new LIR_OpBranch(cond, type, block));
duke@435	1788	}
duke@435	1789	void branch(LIR_Condition cond, BasicType type, CodeStub* stub) {
duke@435	1790	assert(type != T_FLOAT && type != T_DOUBLE, "no fp comparisons");
duke@435	1791	append(new LIR_OpBranch(cond, type, stub));
duke@435	1792	}
duke@435	1793	void branch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* unordered) {
duke@435	1794	assert(type == T_FLOAT || type == T_DOUBLE, "fp comparisons only");
duke@435	1795	append(new LIR_OpBranch(cond, type, block, unordered));
duke@435	1796	}
duke@435	1797
duke@435	1798	void shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
duke@435	1799	void shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
duke@435	1800	void unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp);
duke@435	1801
duke@435	1802	void shift_left(LIR_Opr value, int count, LIR_Opr dst) { shift_left(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
duke@435	1803	void shift_right(LIR_Opr value, int count, LIR_Opr dst) { shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); }
duke@435	1804	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	1805
duke@435	1806	void lcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_cmp_l2i, left, right, dst)); }
duke@435	1807	void fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less);
duke@435	1808
duke@435	1809	void call_runtime_leaf(address routine, LIR_Opr tmp, LIR_Opr result, LIR_OprList* arguments) {
duke@435	1810	append(new LIR_OpRTCall(routine, tmp, result, arguments));
duke@435	1811	}
duke@435	1812
duke@435	1813	void call_runtime(address routine, LIR_Opr tmp, LIR_Opr result,
duke@435	1814	LIR_OprList* arguments, CodeEmitInfo* info) {
duke@435	1815	append(new LIR_OpRTCall(routine, tmp, result, arguments, info));
duke@435	1816	}
duke@435	1817
duke@435	1818	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	1819	void unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, CodeStub* stub);
duke@435	1820	void lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info);
duke@435	1821
duke@435	1822	void set_24bit_fpu() { append(new LIR_Op0(lir_24bit_FPU )); }
duke@435	1823	void restore_fpu() { append(new LIR_Op0(lir_reset_FPU )); }
duke@435	1824	void breakpoint() { append(new LIR_Op0(lir_breakpoint)); }
duke@435	1825
duke@435	1826	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	1827
duke@435	1828	void fpop_raw() { append(new LIR_Op0(lir_fpop_raw)); }
duke@435	1829
duke@435	1830	void checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
duke@435	1831	LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
duke@435	1832	CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
duke@435	1833	ciMethod* profiled_method, int profiled_bci);
duke@435	1834	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	1835	void store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception);
duke@435	1836
duke@435	1837	// methodDataOop profiling
duke@435	1838	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	1839	};
duke@435	1840
duke@435	1841	void print_LIR(BlockList* blocks);
duke@435	1842
duke@435	1843	class LIR_InsertionBuffer : public CompilationResourceObj {
duke@435	1844	private:
duke@435	1845	LIR_List* _lir; // the lir list where ops of this buffer should be inserted later (NULL when uninitialized)
duke@435	1846
duke@435	1847	// list of insertion points. index and count are stored alternately:
duke@435	1848	// _index_and_count[i * 2]: the index into lir list where "count" ops should be inserted
duke@435	1849	// _index_and_count[i * 2 + 1]: the number of ops to be inserted at index
duke@435	1850	intStack _index_and_count;
duke@435	1851
duke@435	1852	// the LIR_Ops to be inserted
duke@435	1853	LIR_OpList _ops;
duke@435	1854
duke@435	1855	void append_new(int index, int count) { _index_and_count.append(index); _index_and_count.append(count); }
duke@435	1856	void set_index_at(int i, int value) { _index_and_count.at_put((i << 1), value); }
duke@435	1857	void set_count_at(int i, int value) { _index_and_count.at_put((i << 1) + 1, value); }
duke@435	1858
duke@435	1859	#ifdef ASSERT
duke@435	1860	void verify();
duke@435	1861	#endif
duke@435	1862	public:
duke@435	1863	LIR_InsertionBuffer() : _lir(NULL), _index_and_count(8), _ops(8) { }
duke@435	1864
duke@435	1865	// must be called before using the insertion buffer
duke@435	1866	void init(LIR_List* lir) { assert(!initialized(), "already initialized"); _lir = lir; _index_and_count.clear(); _ops.clear(); }
duke@435	1867	bool initialized() const { return _lir != NULL; }
duke@435	1868	// called automatically when the buffer is appended to the LIR_List
duke@435	1869	void finish() { _lir = NULL; }
duke@435	1870
duke@435	1871	// accessors
duke@435	1872	LIR_List* lir_list() const { return _lir; }
duke@435	1873	int number_of_insertion_points() const { return _index_and_count.length() >> 1; }
duke@435	1874	int index_at(int i) const { return _index_and_count.at((i << 1)); }
duke@435	1875	int count_at(int i) const { return _index_and_count.at((i << 1) + 1); }
duke@435	1876
duke@435	1877	int number_of_ops() const { return _ops.length(); }
duke@435	1878	LIR_Op* op_at(int i) const { return _ops.at(i); }
duke@435	1879
duke@435	1880	// append an instruction to the buffer
duke@435	1881	void append(int index, LIR_Op* op);
duke@435	1882
duke@435	1883	// instruction
duke@435	1884	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	1885	};
duke@435	1886
duke@435	1887
duke@435	1888	//
duke@435	1889	// LIR_OpVisitState is used for manipulating LIR_Ops in an abstract way.
duke@435	1890	// Calling a LIR_Op's visit function with a LIR_OpVisitState causes
duke@435	1891	// information about the input, output and temporaries used by the
duke@435	1892	// op to be recorded. It also records whether the op has call semantics
duke@435	1893	// and also records all the CodeEmitInfos used by this op.
duke@435	1894	//
duke@435	1895
duke@435	1896
duke@435	1897	class LIR_OpVisitState: public StackObj {
duke@435	1898	public:
duke@435	1899	typedef enum { inputMode, firstMode = inputMode, tempMode, outputMode, numModes, invalidMode = -1 } OprMode;
duke@435	1900
duke@435	1901	enum {
duke@435	1902	maxNumberOfOperands = 14,
duke@435	1903	maxNumberOfInfos = 4
duke@435	1904	};
duke@435	1905
duke@435	1906	private:
duke@435	1907	LIR_Op* _op;
duke@435	1908
duke@435	1909	// optimization: the operands and infos are not stored in a variable-length
duke@435	1910	// list, but in a fixed-size array to save time of size checks and resizing
duke@435	1911	int _oprs_len[numModes];
duke@435	1912	LIR_Opr* _oprs_new[numModes][maxNumberOfOperands];
duke@435	1913	int _info_len;
duke@435	1914	CodeEmitInfo* _info_new[maxNumberOfInfos];
duke@435	1915
duke@435	1916	bool _has_call;
duke@435	1917	bool _has_slow_case;
duke@435	1918
duke@435	1919
duke@435	1920	// only include register operands
duke@435	1921	// addresses are decomposed to the base and index registers
duke@435	1922	// constants and stack operands are ignored
duke@435	1923	void append(LIR_Opr& opr, OprMode mode) {
duke@435	1924	assert(opr->is_valid(), "should not call this otherwise");
duke@435	1925	assert(mode >= 0 && mode < numModes, "bad mode");
duke@435	1926
duke@435	1927	if (opr->is_register()) {
duke@435	1928	assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow");
duke@435	1929	_oprs_new[mode][_oprs_len[mode]++] = &opr;
duke@435	1930
duke@435	1931	} else if (opr->is_pointer()) {
duke@435	1932	LIR_Address* address = opr->as_address_ptr();
duke@435	1933	if (address != NULL) {
duke@435	1934	// special handling for addresses: add base and index register of the address
duke@435	1935	// both are always input operands!
duke@435	1936	if (address->_base->is_valid()) {
duke@435	1937	assert(address->_base->is_register(), "must be");
duke@435	1938	assert(_oprs_len[inputMode] < maxNumberOfOperands, "array overflow");
duke@435	1939	_oprs_new[inputMode][_oprs_len[inputMode]++] = &address->_base;
duke@435	1940	}
duke@435	1941	if (address->_index->is_valid()) {
duke@435	1942	assert(address->_index->is_register(), "must be");
duke@435	1943	assert(_oprs_len[inputMode] < maxNumberOfOperands, "array overflow");
duke@435	1944	_oprs_new[inputMode][_oprs_len[inputMode]++] = &address->_index;
duke@435	1945	}
duke@435	1946
duke@435	1947	} else {
duke@435	1948	assert(opr->is_constant(), "constant operands are not processed");
duke@435	1949	}
duke@435	1950	} else {
duke@435	1951	assert(opr->is_stack(), "stack operands are not processed");
duke@435	1952	}
duke@435	1953	}
duke@435	1954
duke@435	1955	void append(CodeEmitInfo* info) {
duke@435	1956	assert(info != NULL, "should not call this otherwise");
duke@435	1957	assert(_info_len < maxNumberOfInfos, "array overflow");
duke@435	1958	_info_new[_info_len++] = info;
duke@435	1959	}
duke@435	1960
duke@435	1961	public:
duke@435	1962	LIR_OpVisitState() { reset(); }
duke@435	1963
duke@435	1964	LIR_Op* op() const { return _op; }
duke@435	1965	void set_op(LIR_Op* op) { reset(); _op = op; }
duke@435	1966
duke@435	1967	bool has_call() const { return _has_call; }
duke@435	1968	bool has_slow_case() const { return _has_slow_case; }
duke@435	1969
duke@435	1970	void reset() {
duke@435	1971	_op = NULL;
duke@435	1972	_has_call = false;
duke@435	1973	_has_slow_case = false;
duke@435	1974
duke@435	1975	_oprs_len[inputMode] = 0;
duke@435	1976	_oprs_len[tempMode] = 0;
duke@435	1977	_oprs_len[outputMode] = 0;
duke@435	1978	_info_len = 0;
duke@435	1979	}
duke@435	1980
duke@435	1981
duke@435	1982	int opr_count(OprMode mode) const {
duke@435	1983	assert(mode >= 0 && mode < numModes, "bad mode");
duke@435	1984	return _oprs_len[mode];
duke@435	1985	}
duke@435	1986
duke@435	1987	LIR_Opr opr_at(OprMode mode, int index) const {
duke@435	1988	assert(mode >= 0 && mode < numModes, "bad mode");
duke@435	1989	assert(index >= 0 && index < _oprs_len[mode], "index out of bound");
duke@435	1990	return *_oprs_new[mode][index];
duke@435	1991	}
duke@435	1992
duke@435	1993	void set_opr_at(OprMode mode, int index, LIR_Opr opr) const {
duke@435	1994	assert(mode >= 0 && mode < numModes, "bad mode");
duke@435	1995	assert(index >= 0 && index < _oprs_len[mode], "index out of bound");
duke@435	1996	*_oprs_new[mode][index] = opr;
duke@435	1997	}
duke@435	1998
duke@435	1999	int info_count() const {
duke@435	2000	return _info_len;
duke@435	2001	}
duke@435	2002
duke@435	2003	CodeEmitInfo* info_at(int index) const {
duke@435	2004	assert(index < _info_len, "index out of bounds");
duke@435	2005	return _info_new[index];
duke@435	2006	}
duke@435	2007
duke@435	2008	XHandlers* all_xhandler();
duke@435	2009
duke@435	2010	// collects all register operands of the instruction
duke@435	2011	void visit(LIR_Op* op);
duke@435	2012
duke@435	2013	#if ASSERT
duke@435	2014	// check that an operation has no operands
duke@435	2015	bool no_operands(LIR_Op* op);
duke@435	2016	#endif
duke@435	2017
duke@435	2018	// LIR_Op visitor functions use these to fill in the state
duke@435	2019	void do_input(LIR_Opr& opr) { append(opr, LIR_OpVisitState::inputMode); }
duke@435	2020	void do_output(LIR_Opr& opr) { append(opr, LIR_OpVisitState::outputMode); }
duke@435	2021	void do_temp(LIR_Opr& opr) { append(opr, LIR_OpVisitState::tempMode); }
duke@435	2022	void do_info(CodeEmitInfo* info) { append(info); }
duke@435	2023
duke@435	2024	void do_stub(CodeStub* stub);
duke@435	2025	void do_call() { _has_call = true; }
duke@435	2026	void do_slow_case() { _has_slow_case = true; }
duke@435	2027	void do_slow_case(CodeEmitInfo* info) {
duke@435	2028	_has_slow_case = true;
duke@435	2029	append(info);
duke@435	2030	}
duke@435	2031	};
duke@435	2032
duke@435	2033
duke@435	2034	inline LIR_Opr LIR_OprDesc::illegalOpr() { return LIR_OprFact::illegalOpr; };