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src/cpu/x86/vm/interp_masm_x86_32.hpp@0fbdb4381b99 (annotated)

src/cpu/x86/vm/interp_masm_x86_32.hpp

Mon, 09 Mar 2009 13:28:46 -0700

author

xdono

date

Mon, 09 Mar 2009 13:28:46 -0700

changeset 1014

0fbdb4381b99

parent 947

db4caa99ef11

child 1145

e5b0439ef4ae

permissions

-rw-r--r--

6814575: Update copyright year
Summary: Update copyright for files that have been modified in 2009, up to 03/09
Reviewed-by: katleman, tbell, ohair

duke@435	1	/*
xdono@1014	2	* Copyright 1997-2009 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	// This file specializes the assember with interpreter-specific macros
duke@435	26
duke@435	27
duke@435	28	class InterpreterMacroAssembler: public MacroAssembler {
duke@435	29	#ifndef CC_INTERP
duke@435	30	protected:
duke@435	31	// Interpreter specific version of call_VM_base
duke@435	32	virtual void call_VM_leaf_base(
duke@435	33	address entry_point,
duke@435	34	int number_of_arguments
duke@435	35	);
duke@435	36
duke@435	37	virtual void call_VM_base(
duke@435	38	Register oop_result,
duke@435	39	Register java_thread,
duke@435	40	Register last_java_sp,
duke@435	41	address entry_point,
duke@435	42	int number_of_arguments,
duke@435	43	bool check_exceptions
duke@435	44	);
duke@435	45
duke@435	46	virtual void check_and_handle_popframe(Register java_thread);
duke@435	47	virtual void check_and_handle_earlyret(Register java_thread);
duke@435	48
duke@435	49	// base routine for all dispatches
duke@435	50	void dispatch_base(TosState state, address* table, bool verifyoop = true);
duke@435	51	#endif /* CC_INTERP */
duke@435	52
duke@435	53	public:
duke@435	54	InterpreterMacroAssembler(CodeBuffer* code) : MacroAssembler(code) {}
duke@435	55
duke@435	56	void load_earlyret_value(TosState state);
duke@435	57
duke@435	58	// Interpreter-specific registers
duke@435	59	#ifdef CC_INTERP
duke@435	60	void save_bcp() { /* not needed in c++ interpreter and harmless */ }
duke@435	61	void restore_bcp() { /* not needed in c++ interpreter and harmless */ }
duke@435	62
duke@435	63	// Helpers for runtime call arguments/results
duke@435	64	void get_method(Register reg);
duke@435	65
duke@435	66	#else
duke@435	67
never@739	68	void save_bcp() { movptr(Address(rbp, frame::interpreter_frame_bcx_offset * wordSize), rsi); }
never@739	69	void restore_bcp() { movptr(rsi, Address(rbp, frame::interpreter_frame_bcx_offset * wordSize)); }
never@739	70	void restore_locals() { movptr(rdi, Address(rbp, frame::interpreter_frame_locals_offset * wordSize)); }
duke@435	71
duke@435	72	// Helpers for runtime call arguments/results
never@739	73	void get_method(Register reg) { movptr(reg, Address(rbp, frame::interpreter_frame_method_offset * wordSize)); }
never@739	74	void get_constant_pool(Register reg) { get_method(reg); movptr(reg, Address(reg, methodOopDesc::constants_offset())); }
never@739	75	void get_constant_pool_cache(Register reg) { get_constant_pool(reg); movptr(reg, Address(reg, constantPoolOopDesc::cache_offset_in_bytes())); }
never@739	76	void get_cpool_and_tags(Register cpool, Register tags) { get_constant_pool(cpool); movptr(tags, Address(cpool, constantPoolOopDesc::tags_offset_in_bytes()));
duke@435	77	}
duke@435	78	void get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset);
duke@435	79	void get_cache_and_index_at_bcp(Register cache, Register index, int bcp_offset);
duke@435	80	void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset);
duke@435	81
duke@435	82	// Expression stack
duke@435	83	void f2ieee(); // truncate ftos to 32bits
duke@435	84	void d2ieee(); // truncate dtos to 64bits
duke@435	85
duke@435	86	void pop_ptr(Register r = rax);
duke@435	87	void pop_ptr(Register r, Register tag);
duke@435	88	void pop_i(Register r = rax);
duke@435	89	void pop_l(Register lo = rax, Register hi = rdx);
duke@435	90	void pop_f();
duke@435	91	void pop_d();
duke@435	92	void pop_ftos_to_rsp();
duke@435	93	void pop_dtos_to_rsp();
duke@435	94
duke@435	95	void push_ptr(Register r = rax);
duke@435	96	void push_ptr(Register r, Register tag);
duke@435	97	void push_i(Register r = rax);
duke@435	98	void push_l(Register lo = rax, Register hi = rdx);
duke@435	99	void push_d(Register r = rax);
duke@435	100	void push_f();
duke@435	101
duke@435	102	void pop(TosState state); // transition vtos -> state
duke@435	103	void push(TosState state); // transition state -> vtos
duke@435	104
never@739	105	void pop(Register r ) { ((MacroAssembler*)this)->pop(r); }
never@739	106
never@739	107	void push(Register r ) { ((MacroAssembler*)this)->push(r); }
never@739	108	void push(int32_t imm ) { ((MacroAssembler*)this)->push(imm); }
never@739	109
never@739	110	// These are dummies to prevent surprise implicit conversions to Register
never@739	111	void pop(void* v ); // Add unimplemented ambiguous method
never@739	112	void push(void* v ); // Add unimplemented ambiguous method
never@739	113
duke@435	114	DEBUG_ONLY(void verify_stack_tag(frame::Tag t);)
duke@435	115
never@739	116	#endif // CC_INTERP
never@739	117
duke@435	118	#ifndef CC_INTERP
duke@435	119
duke@435	120	void empty_expression_stack() {
never@739	121	movptr(rsp, Address(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize));
duke@435	122	// NULL last_sp until next java call
xlu@947	123	movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD);
duke@435	124	}
duke@435	125
duke@435	126	// Tagged stack helpers for swap and dup
duke@435	127	void load_ptr_and_tag(int n, Register val, Register tag);
duke@435	128	void store_ptr_and_tag(int n, Register val, Register tag);
duke@435	129
duke@435	130	// Tagged Local support
duke@435	131
duke@435	132	void tag_local(frame::Tag tag, int n);
duke@435	133	void tag_local(Register tag, int n);
duke@435	134	void tag_local(frame::Tag tag, Register idx);
duke@435	135	void tag_local(Register tag, Register idx);
duke@435	136
duke@435	137	#ifdef ASSERT
duke@435	138	void verify_local_tag(frame::Tag tag, int n);
duke@435	139	void verify_local_tag(frame::Tag tag, Register idx);
duke@435	140	#endif // ASSERT
duke@435	141
duke@435	142	// Super call_VM calls - correspond to MacroAssembler::call_VM(_leaf) calls
duke@435	143	void super_call_VM_leaf(address entry_point);
duke@435	144	void super_call_VM_leaf(address entry_point, Register arg_1);
duke@435	145	void super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2);
duke@435	146	void super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2, Register arg_3);
duke@435	147
duke@435	148	// Generate a subtype check: branch to ok_is_subtype if sub_klass is
duke@435	149	// a subtype of super_klass. EAX holds the super_klass. Blows ECX
duke@435	150	// and EDI. Register sub_klass cannot be any of the above.
duke@435	151	void gen_subtype_check( Register sub_klass, Label &ok_is_subtype );
duke@435	152
duke@435	153	// Dispatching
duke@435	154	void dispatch_prolog(TosState state, int step = 0);
duke@435	155	void dispatch_epilog(TosState state, int step = 0);
duke@435	156	void dispatch_only(TosState state); // dispatch via rbx, (assume rbx, is loaded already)
duke@435	157	void dispatch_only_normal(TosState state); // dispatch normal table via rbx, (assume rbx, is loaded already)
duke@435	158	void dispatch_only_noverify(TosState state);
duke@435	159	void dispatch_next(TosState state, int step = 0); // load rbx, from [esi + step] and dispatch via rbx,
duke@435	160	void dispatch_via (TosState state, address* table); // load rbx, from [esi] and dispatch via rbx, and table
duke@435	161
duke@435	162
duke@435	163	// jump to an invoked target
duke@435	164	void jump_from_interpreted(Register method, Register temp);
duke@435	165
duke@435	166	// Returning from interpreted functions
duke@435	167	//
duke@435	168	// Removes the current activation (incl. unlocking of monitors)
duke@435	169	// and sets up the return address. This code is also used for
duke@435	170	// exception unwindwing. In that case, we do not want to throw
duke@435	171	// IllegalMonitorStateExceptions, since that might get us into an
duke@435	172	// infinite rethrow exception loop.
duke@435	173	// Additionally this code is used for popFrame and earlyReturn.
duke@435	174	// In popFrame case we want to skip throwing an exception,
duke@435	175	// installing an exception, and notifying jvmdi.
duke@435	176	// In earlyReturn case we only want to skip throwing an exception
duke@435	177	// and installing an exception.
duke@435	178	void remove_activation(TosState state, Register ret_addr,
duke@435	179	bool throw_monitor_exception = true,
duke@435	180	bool install_monitor_exception = true,
duke@435	181	bool notify_jvmdi = true);
duke@435	182	#endif /* !CC_INTERP */
duke@435	183
duke@435	184	// Debugging
duke@435	185	void verify_oop(Register reg, TosState state = atos); // only if +VerifyOops && state == atos
duke@435	186	#ifndef CC_INTERP
duke@435	187	void verify_FPU(int stack_depth, TosState state = ftos); // only if +VerifyFPU && (state == ftos || state == dtos)
duke@435	188
duke@435	189	#endif /* !CC_INTERP */
duke@435	190
duke@435	191	// Object locking
duke@435	192	void lock_object (Register lock_reg);
duke@435	193	void unlock_object(Register lock_reg);
duke@435	194
duke@435	195	#ifndef CC_INTERP
duke@435	196
duke@435	197	// Interpreter profiling operations
duke@435	198	void set_method_data_pointer_for_bcp();
duke@435	199	void test_method_data_pointer(Register mdp, Label& zero_continue);
duke@435	200	void verify_method_data_pointer();
duke@435	201
duke@435	202	void set_mdp_data_at(Register mdp_in, int constant, Register value);
duke@435	203	void increment_mdp_data_at(Address data, bool decrement = false);
duke@435	204	void increment_mdp_data_at(Register mdp_in, int constant,
duke@435	205	bool decrement = false);
duke@435	206	void increment_mdp_data_at(Register mdp_in, Register reg, int constant,
duke@435	207	bool decrement = false);
duke@435	208	void set_mdp_flag_at(Register mdp_in, int flag_constant);
duke@435	209	void test_mdp_data_at(Register mdp_in, int offset, Register value,
duke@435	210	Register test_value_out,
duke@435	211	Label& not_equal_continue);
duke@435	212
duke@435	213	void record_klass_in_profile(Register receiver, Register mdp,
duke@435	214	Register reg2);
duke@435	215	void record_klass_in_profile_helper(Register receiver, Register mdp,
duke@435	216	Register reg2,
duke@435	217	int start_row, Label& done);
duke@435	218
duke@435	219	void update_mdp_by_offset(Register mdp_in, int offset_of_offset);
duke@435	220	void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp);
duke@435	221	void update_mdp_by_constant(Register mdp_in, int constant);
duke@435	222	void update_mdp_for_ret(Register return_bci);
duke@435	223
duke@435	224	void profile_taken_branch(Register mdp, Register bumped_count);
duke@435	225	void profile_not_taken_branch(Register mdp);
duke@435	226	void profile_call(Register mdp);
duke@435	227	void profile_final_call(Register mdp);
duke@435	228	void profile_virtual_call(Register receiver, Register mdp, Register scratch2);
duke@435	229	void profile_ret(Register return_bci, Register mdp);
duke@435	230	void profile_null_seen(Register mdp);
duke@435	231	void profile_typecheck(Register mdp, Register klass, Register scratch);
duke@435	232	void profile_typecheck_failed(Register mdp);
duke@435	233	void profile_switch_default(Register mdp);
duke@435	234	void profile_switch_case(Register index_in_scratch, Register mdp, Register scratch2);
duke@435	235
duke@435	236	#endif /* !CC_INTERP */
duke@435	237
duke@435	238	typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode;
duke@435	239
duke@435	240	// support for jvmti
duke@435	241	void notify_method_entry();
duke@435	242	void notify_method_exit(TosState state, NotifyMethodExitMode mode);
duke@435	243
duke@435	244	};