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src/share/vm/opto/runtime.hpp@8e47bac5643a (annotated)

src/share/vm/opto/runtime.hpp

Tue, 09 Oct 2012 10:11:38 +0200

author

roland

date

Tue, 09 Oct 2012 10:11:38 +0200

changeset 4159

8e47bac5643a

parent 4037

da91efe96a93

child 4205

a3ecd773a7b9

permissions

-rw-r--r--

7054512: Compress class pointers after perm gen removal
Summary: support of compress class pointers in the compilers.
Reviewed-by: kvn, twisti

duke@435	1	/*
rbackman@3709	2	* Copyright (c) 1998, 2012, Oracle and/or its affiliates. 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	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#ifndef SHARE_VM_OPTO_RUNTIME_HPP
stefank@2314	26	#define SHARE_VM_OPTO_RUNTIME_HPP
stefank@2314	27
stefank@2314	28	#include "code/codeBlob.hpp"
stefank@2314	29	#include "opto/machnode.hpp"
stefank@2314	30	#include "opto/type.hpp"
stefank@2314	31	#include "runtime/biasedLocking.hpp"
stefank@2314	32	#include "runtime/deoptimization.hpp"
stefank@2314	33	#include "runtime/vframe.hpp"
stefank@2314	34
duke@435	35	//------------------------------OptoRuntime------------------------------------
duke@435	36	// Opto compiler runtime routines
duke@435	37	//
duke@435	38	// These are all generated from Ideal graphs. They are called with the
duke@435	39	// Java calling convention. Internally they call C++. They are made once at
duke@435	40	// startup time and Opto compiles calls to them later.
duke@435	41	// Things are broken up into quads: the signature they will be called with,
duke@435	42	// the address of the generated code, the corresponding C++ code and an
duke@435	43	// nmethod.
duke@435	44
duke@435	45	// The signature (returned by "xxx_Type()") is used at startup time by the
duke@435	46	// Generator to make the generated code "xxx_Java". Opto compiles calls
duke@435	47	// to the generated code "xxx_Java". When the compiled code gets executed,
duke@435	48	// it calls the C++ code "xxx_C". The generated nmethod is saved in the
duke@435	49	// CodeCache. Exception handlers use the nmethod to get the callee-save
duke@435	50	// register OopMaps.
duke@435	51	class CallInfo;
duke@435	52
duke@435	53	//
duke@435	54	// NamedCounters are tagged counters which can be used for profiling
duke@435	55	// code in various ways. Currently they are used by the lock coarsening code
duke@435	56	//
duke@435	57
zgu@3900	58	class NamedCounter : public CHeapObj<mtCompiler> {
duke@435	59	public:
duke@435	60	enum CounterTag {
duke@435	61	NoTag,
duke@435	62	LockCounter,
duke@435	63	EliminatedLockCounter,
duke@435	64	BiasedLockingCounter
duke@435	65	};
duke@435	66
duke@435	67	private:
duke@435	68	const char * _name;
duke@435	69	int _count;
duke@435	70	CounterTag _tag;
duke@435	71	NamedCounter* _next;
duke@435	72
duke@435	73	public:
duke@435	74	NamedCounter(const char *n, CounterTag tag = NoTag):
duke@435	75	_name(n),
duke@435	76	_count(0),
duke@435	77	_next(NULL),
duke@435	78	_tag(tag) {}
duke@435	79
duke@435	80	const char * name() const { return _name; }
duke@435	81	int count() const { return _count; }
duke@435	82	address addr() { return (address)&_count; }
duke@435	83	CounterTag tag() const { return _tag; }
duke@435	84	void set_tag(CounterTag tag) { _tag = tag; }
duke@435	85
duke@435	86	NamedCounter* next() const { return _next; }
duke@435	87	void set_next(NamedCounter* next) {
duke@435	88	assert(_next == NULL, "already set");
duke@435	89	_next = next;
duke@435	90	}
duke@435	91
duke@435	92	};
duke@435	93
duke@435	94	class BiasedLockingNamedCounter : public NamedCounter {
duke@435	95	private:
duke@435	96	BiasedLockingCounters _counters;
duke@435	97
duke@435	98	public:
duke@435	99	BiasedLockingNamedCounter(const char *n) :
duke@435	100	NamedCounter(n, BiasedLockingCounter), _counters() {}
duke@435	101
duke@435	102	BiasedLockingCounters* counters() { return &_counters; }
duke@435	103	};
duke@435	104
duke@435	105	typedef const TypeFunc*(*TypeFunc_generator)();
duke@435	106
duke@435	107	class OptoRuntime : public AllStatic {
duke@435	108	friend class Matcher; // allow access to stub names
duke@435	109
duke@435	110	private:
duke@435	111	// define stubs
duke@435	112	static address generate_stub(ciEnv* ci_env, TypeFunc_generator gen, address C_function, const char *name, int is_fancy_jump, bool pass_tls, bool save_arguments, bool return_pc);
duke@435	113
duke@435	114	// References to generated stubs
duke@435	115	static address _new_instance_Java;
duke@435	116	static address _new_array_Java;
kvn@3157	117	static address _new_array_nozero_Java;
duke@435	118	static address _multianewarray2_Java;
duke@435	119	static address _multianewarray3_Java;
duke@435	120	static address _multianewarray4_Java;
duke@435	121	static address _multianewarray5_Java;
iveresov@3002	122	static address _multianewarrayN_Java;
ysr@777	123	static address _g1_wb_pre_Java;
ysr@777	124	static address _g1_wb_post_Java;
duke@435	125	static address _vtable_must_compile_Java;
duke@435	126	static address _complete_monitor_locking_Java;
duke@435	127	static address _rethrow_Java;
duke@435	128
duke@435	129	static address _slow_arraycopy_Java;
duke@435	130	static address _register_finalizer_Java;
duke@435	131
duke@435	132	# ifdef ENABLE_ZAP_DEAD_LOCALS
duke@435	133	static address _zap_dead_Java_locals_Java;
duke@435	134	static address _zap_dead_native_locals_Java;
duke@435	135	# endif
duke@435	136
duke@435	137
duke@435	138	//
duke@435	139	// Implementation of runtime methods
duke@435	140	// =================================
duke@435	141
duke@435	142	// Allocate storage for a Java instance.
coleenp@4037	143	static void new_instance_C(Klass* instance_klass, JavaThread *thread);
duke@435	144
duke@435	145	// Allocate storage for a objArray or typeArray
coleenp@4037	146	static void new_array_C(Klass* array_klass, int len, JavaThread *thread);
coleenp@4037	147	static void new_array_nozero_C(Klass* array_klass, int len, JavaThread *thread);
duke@435	148
ysr@1601	149	// Post-slow-path-allocation, pre-initializing-stores step for
ysr@1601	150	// implementing ReduceInitialCardMarks
ysr@1601	151	static void new_store_pre_barrier(JavaThread* thread);
duke@435	152
duke@435	153	// Allocate storage for a multi-dimensional arrays
duke@435	154	// Note: needs to be fixed for arbitrary number of dimensions
coleenp@4037	155	static void multianewarray2_C(Klass* klass, int len1, int len2, JavaThread *thread);
coleenp@4037	156	static void multianewarray3_C(Klass* klass, int len1, int len2, int len3, JavaThread *thread);
coleenp@4037	157	static void multianewarray4_C(Klass* klass, int len1, int len2, int len3, int len4, JavaThread *thread);
coleenp@4037	158	static void multianewarray5_C(Klass* klass, int len1, int len2, int len3, int len4, int len5, JavaThread *thread);
coleenp@4037	159	static void multianewarrayN_C(Klass* klass, arrayOopDesc* dims, JavaThread *thread);
ysr@777	160	static void g1_wb_pre_C(oopDesc* orig, JavaThread* thread);
ysr@777	161	static void g1_wb_post_C(void* card_addr, JavaThread* thread);
duke@435	162
duke@435	163	public:
duke@435	164	// Slow-path Locking and Unlocking
duke@435	165	static void complete_monitor_locking_C(oopDesc* obj, BasicLock* lock, JavaThread* thread);
duke@435	166	static void complete_monitor_unlocking_C(oopDesc* obj, BasicLock* lock);
duke@435	167
duke@435	168	private:
duke@435	169
duke@435	170	// Implicit exception support
duke@435	171	static void throw_null_exception_C(JavaThread* thread);
duke@435	172
duke@435	173	// Exception handling
duke@435	174	static address handle_exception_C (JavaThread* thread);
duke@435	175	static address handle_exception_C_helper(JavaThread* thread, nmethod*& nm);
duke@435	176	static address rethrow_C (oopDesc* exception, JavaThread *thread, address return_pc );
duke@435	177	static void deoptimize_caller_frame (JavaThread *thread, bool doit);
kvn@3259	178	static bool is_deoptimized_caller_frame (JavaThread *thread);
duke@435	179
duke@435	180	// CodeBlob support
duke@435	181	// ===================================================================
duke@435	182
duke@435	183	static ExceptionBlob* _exception_blob;
duke@435	184	static void generate_exception_blob();
duke@435	185
duke@435	186	static void register_finalizer(oopDesc* obj, JavaThread* thread);
duke@435	187
duke@435	188	// zaping dead locals, either from Java frames or from native frames
duke@435	189	# ifdef ENABLE_ZAP_DEAD_LOCALS
duke@435	190	static void zap_dead_Java_locals_C( JavaThread* thread);
duke@435	191	static void zap_dead_native_locals_C( JavaThread* thread);
duke@435	192
duke@435	193	static void zap_dead_java_or_native_locals( JavaThread*, bool (*)(frame*));
duke@435	194
duke@435	195	public:
duke@435	196	static int ZapDeadCompiledLocals_count;
duke@435	197
duke@435	198	# endif
duke@435	199
duke@435	200
duke@435	201	public:
duke@435	202
duke@435	203	static bool is_callee_saved_register(MachRegisterNumbers reg);
duke@435	204
duke@435	205	// One time only generate runtime code stubs
duke@435	206	static void generate(ciEnv* env);
duke@435	207
duke@435	208	// Returns the name of a stub
duke@435	209	static const char* stub_name(address entry);
duke@435	210
duke@435	211	// access to runtime stubs entry points for java code
duke@435	212	static address new_instance_Java() { return _new_instance_Java; }
duke@435	213	static address new_array_Java() { return _new_array_Java; }
kvn@3157	214	static address new_array_nozero_Java() { return _new_array_nozero_Java; }
duke@435	215	static address multianewarray2_Java() { return _multianewarray2_Java; }
duke@435	216	static address multianewarray3_Java() { return _multianewarray3_Java; }
duke@435	217	static address multianewarray4_Java() { return _multianewarray4_Java; }
duke@435	218	static address multianewarray5_Java() { return _multianewarray5_Java; }
iveresov@3002	219	static address multianewarrayN_Java() { return _multianewarrayN_Java; }
ysr@777	220	static address g1_wb_pre_Java() { return _g1_wb_pre_Java; }
ysr@777	221	static address g1_wb_post_Java() { return _g1_wb_post_Java; }
duke@435	222	static address vtable_must_compile_stub() { return _vtable_must_compile_Java; }
duke@435	223	static address complete_monitor_locking_Java() { return _complete_monitor_locking_Java; }
duke@435	224
duke@435	225	static address slow_arraycopy_Java() { return _slow_arraycopy_Java; }
duke@435	226	static address register_finalizer_Java() { return _register_finalizer_Java; }
duke@435	227
duke@435	228
duke@435	229	# ifdef ENABLE_ZAP_DEAD_LOCALS
duke@435	230	static address zap_dead_locals_stub(bool is_native) { return is_native
duke@435	231	? _zap_dead_native_locals_Java
duke@435	232	: _zap_dead_Java_locals_Java; }
duke@435	233	static MachNode* node_to_call_zap_dead_locals(Node* n, int block_num, bool is_native);
duke@435	234	# endif
duke@435	235
duke@435	236	static ExceptionBlob* exception_blob() { return _exception_blob; }
duke@435	237
duke@435	238	// Leaf routines helping with method data update
duke@435	239	static void profile_receiver_type_C(DataLayout* data, oopDesc* receiver);
duke@435	240
duke@435	241	// Implicit exception support
duke@435	242	static void throw_div0_exception_C (JavaThread* thread);
duke@435	243	static void throw_stack_overflow_error_C(JavaThread* thread);
duke@435	244
duke@435	245	// Exception handling
duke@435	246	static address rethrow_stub() { return _rethrow_Java; }
duke@435	247
duke@435	248
duke@435	249	// Type functions
duke@435	250	// ======================================================
duke@435	251
duke@435	252	static const TypeFunc* new_instance_Type(); // object allocation (slow case)
duke@435	253	static const TypeFunc* new_array_Type (); // [a]newarray (slow case)
duke@435	254	static const TypeFunc* multianewarray_Type(int ndim); // multianewarray
duke@435	255	static const TypeFunc* multianewarray2_Type(); // multianewarray
duke@435	256	static const TypeFunc* multianewarray3_Type(); // multianewarray
duke@435	257	static const TypeFunc* multianewarray4_Type(); // multianewarray
duke@435	258	static const TypeFunc* multianewarray5_Type(); // multianewarray
iveresov@3002	259	static const TypeFunc* multianewarrayN_Type(); // multianewarray
ysr@777	260	static const TypeFunc* g1_wb_pre_Type();
ysr@777	261	static const TypeFunc* g1_wb_post_Type();
duke@435	262	static const TypeFunc* complete_monitor_enter_Type();
duke@435	263	static const TypeFunc* complete_monitor_exit_Type();
duke@435	264	static const TypeFunc* uncommon_trap_Type();
duke@435	265	static const TypeFunc* athrow_Type();
duke@435	266	static const TypeFunc* rethrow_Type();
duke@435	267	static const TypeFunc* Math_D_D_Type(); // sin,cos & friends
duke@435	268	static const TypeFunc* Math_DD_D_Type(); // mod,pow & friends
duke@435	269	static const TypeFunc* modf_Type();
duke@435	270	static const TypeFunc* l2f_Type();
rbackman@3709	271	static const TypeFunc* void_long_Type();
duke@435	272
duke@435	273	static const TypeFunc* flush_windows_Type();
duke@435	274
duke@435	275	// arraycopy routine types
duke@435	276	static const TypeFunc* fast_arraycopy_Type(); // bit-blasters
duke@435	277	static const TypeFunc* checkcast_arraycopy_Type();
duke@435	278	static const TypeFunc* generic_arraycopy_Type();
duke@435	279	static const TypeFunc* slow_arraycopy_Type(); // the full routine
duke@435	280
never@2118	281	static const TypeFunc* array_fill_Type();
never@2118	282
duke@435	283	// leaf on stack replacement interpreter accessor types
duke@435	284	static const TypeFunc* osr_end_Type();
duke@435	285
duke@435	286	// leaf methodData routine types
duke@435	287	static const TypeFunc* profile_receiver_type_Type();
duke@435	288
duke@435	289	// leaf on stack replacement interpreter accessor types
duke@435	290	static const TypeFunc* fetch_int_Type();
duke@435	291	static const TypeFunc* fetch_long_Type();
duke@435	292	static const TypeFunc* fetch_float_Type();
duke@435	293	static const TypeFunc* fetch_double_Type();
duke@435	294	static const TypeFunc* fetch_oop_Type();
duke@435	295	static const TypeFunc* fetch_monitor_Type();
duke@435	296
duke@435	297	static const TypeFunc* register_finalizer_Type();
duke@435	298
duke@435	299	// Dtrace support
duke@435	300	static const TypeFunc* dtrace_method_entry_exit_Type();
duke@435	301	static const TypeFunc* dtrace_object_alloc_Type();
duke@435	302
duke@435	303	# ifdef ENABLE_ZAP_DEAD_LOCALS
duke@435	304	static const TypeFunc* zap_dead_locals_Type();
duke@435	305	# endif
duke@435	306
duke@435	307	private:
duke@435	308	static NamedCounter * volatile _named_counters;
duke@435	309
duke@435	310	public:
duke@435	311	// helper function which creates a named counter labeled with the
duke@435	312	// if they are available
duke@435	313	static NamedCounter* new_named_counter(JVMState* jvms, NamedCounter::CounterTag tag);
duke@435	314
duke@435	315	// dumps all the named counters
duke@435	316	static void print_named_counters();
duke@435	317
duke@435	318	};
stefank@2314	319
stefank@2314	320	#endif // SHARE_VM_OPTO_RUNTIME_HPP