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src/cpu/x86/vm/interp_masm_x86_64.hpp@75b0735b4d04 (annotated)

src/cpu/x86/vm/interp_masm_x86_64.hpp

Wed, 13 Oct 2010 11:46:46 -0400

author

acorn

date

Wed, 13 Oct 2010 11:46:46 -0400

changeset 2226

75b0735b4d04

parent 2138

d5d065957597

child 2314

f95d63e2154a

permissions

-rw-r--r--

Merge

duke@435	1	/*
trims@1907	2	* Copyright (c) 2003, 2010, 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
duke@435	25	// This file specializes the assember with interpreter-specific macros
duke@435	26
duke@435	27
never@739	28	class InterpreterMacroAssembler: public MacroAssembler {
never@739	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(address entry_point,
duke@435	33	int number_of_arguments);
duke@435	34
duke@435	35	virtual void call_VM_base(Register oop_result,
duke@435	36	Register java_thread,
duke@435	37	Register last_java_sp,
duke@435	38	address entry_point,
duke@435	39	int number_of_arguments,
duke@435	40	bool check_exceptions);
duke@435	41
duke@435	42	virtual void check_and_handle_popframe(Register java_thread);
duke@435	43	virtual void check_and_handle_earlyret(Register java_thread);
duke@435	44
duke@435	45	// base routine for all dispatches
duke@435	46	void dispatch_base(TosState state, address* table, bool verifyoop = true);
never@739	47	#endif // CC_INTERP
duke@435	48
duke@435	49	public:
never@739	50	InterpreterMacroAssembler(CodeBuffer* code) : MacroAssembler(code) {}
duke@435	51
duke@435	52	void load_earlyret_value(TosState state);
duke@435	53
never@739	54	#ifdef CC_INTERP
never@739	55	void save_bcp() { /* not needed in c++ interpreter and harmless */ }
never@739	56	void restore_bcp() { /* not needed in c++ interpreter and harmless */ }
never@739	57
never@739	58	// Helpers for runtime call arguments/results
never@739	59	void get_method(Register reg);
never@739	60
never@739	61	#else
never@739	62
duke@435	63	// Interpreter-specific registers
never@739	64	void save_bcp() {
never@739	65	movptr(Address(rbp, frame::interpreter_frame_bcx_offset * wordSize), r13);
duke@435	66	}
duke@435	67
never@739	68	void restore_bcp() {
never@739	69	movptr(r13, Address(rbp, frame::interpreter_frame_bcx_offset * wordSize));
duke@435	70	}
duke@435	71
never@739	72	void restore_locals() {
never@739	73	movptr(r14, Address(rbp, frame::interpreter_frame_locals_offset * wordSize));
duke@435	74	}
duke@435	75
duke@435	76	// Helpers for runtime call arguments/results
never@739	77	void get_method(Register reg) {
never@739	78	movptr(reg, Address(rbp, frame::interpreter_frame_method_offset * wordSize));
duke@435	79	}
duke@435	80
never@739	81	void get_constant_pool(Register reg) {
duke@435	82	get_method(reg);
never@739	83	movptr(reg, Address(reg, methodOopDesc::constants_offset()));
duke@435	84	}
duke@435	85
never@739	86	void get_constant_pool_cache(Register reg) {
duke@435	87	get_constant_pool(reg);
never@739	88	movptr(reg, Address(reg, constantPoolOopDesc::cache_offset_in_bytes()));
duke@435	89	}
duke@435	90
never@739	91	void get_cpool_and_tags(Register cpool, Register tags) {
duke@435	92	get_constant_pool(cpool);
never@739	93	movptr(tags, Address(cpool, constantPoolOopDesc::tags_offset_in_bytes()));
duke@435	94	}
duke@435	95
duke@435	96	void get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset);
duke@435	97	void get_cache_and_index_at_bcp(Register cache, Register index,
jrose@1920	98	int bcp_offset, size_t index_size = sizeof(u2));
duke@435	99	void get_cache_entry_pointer_at_bcp(Register cache, Register tmp,
jrose@1920	100	int bcp_offset, size_t index_size = sizeof(u2));
jrose@1920	101	void get_cache_index_at_bcp(Register index, int bcp_offset, size_t index_size = sizeof(u2));
duke@435	102
never@739	103
duke@435	104	void pop_ptr(Register r = rax);
duke@435	105	void pop_i(Register r = rax);
duke@435	106	void pop_l(Register r = rax);
duke@435	107	void pop_f(XMMRegister r = xmm0);
duke@435	108	void pop_d(XMMRegister r = xmm0);
duke@435	109	void push_ptr(Register r = rax);
duke@435	110	void push_i(Register r = rax);
duke@435	111	void push_l(Register r = rax);
duke@435	112	void push_f(XMMRegister r = xmm0);
duke@435	113	void push_d(XMMRegister r = xmm0);
duke@435	114
never@739	115	void pop(Register r ) { ((MacroAssembler*)this)->pop(r); }
never@739	116
never@739	117	void push(Register r ) { ((MacroAssembler*)this)->push(r); }
never@739	118	void push(int32_t imm ) { ((MacroAssembler*)this)->push(imm); }
never@739	119
duke@435	120	void pop(TosState state); // transition vtos -> state
duke@435	121	void push(TosState state); // transition state -> vtos
duke@435	122
twisti@1861	123	void empty_expression_stack() {
never@739	124	movptr(rsp, Address(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize));
duke@435	125	// NULL last_sp until next java call
never@739	126	movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD);
duke@435	127	}
duke@435	128
twisti@1861	129	// Helpers for swap and dup
twisti@1861	130	void load_ptr(int n, Register val);
twisti@1861	131	void store_ptr(int n, Register val);
twisti@1861	132
duke@435	133	// Super call_VM calls - correspond to MacroAssembler::call_VM(_leaf) calls
duke@435	134	void super_call_VM_leaf(address entry_point);
duke@435	135	void super_call_VM_leaf(address entry_point, Register arg_1);
duke@435	136	void super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2);
duke@435	137	void super_call_VM_leaf(address entry_point,
duke@435	138	Register arg_1, Register arg_2, Register arg_3);
duke@435	139
duke@435	140	// Generate a subtype check: branch to ok_is_subtype if sub_klass is
duke@435	141	// a subtype of super_klass.
duke@435	142	void gen_subtype_check( Register sub_klass, Label &ok_is_subtype );
duke@435	143
duke@435	144	// Dispatching
duke@435	145	void dispatch_prolog(TosState state, int step = 0);
duke@435	146	void dispatch_epilog(TosState state, int step = 0);
duke@435	147	// dispatch via ebx (assume ebx is loaded already)
duke@435	148	void dispatch_only(TosState state);
duke@435	149	// dispatch normal table via ebx (assume ebx is loaded already)
duke@435	150	void dispatch_only_normal(TosState state);
duke@435	151	void dispatch_only_noverify(TosState state);
duke@435	152	// load ebx from [esi + step] and dispatch via ebx
duke@435	153	void dispatch_next(TosState state, int step = 0);
duke@435	154	// load ebx from [esi] and dispatch via ebx and table
duke@435	155	void dispatch_via (TosState state, address* table);
duke@435	156
duke@435	157	// jump to an invoked target
jrose@1145	158	void prepare_to_jump_from_interpreted();
duke@435	159	void jump_from_interpreted(Register method, Register temp);
duke@435	160
duke@435	161
duke@435	162	// Returning from interpreted functions
duke@435	163	//
duke@435	164	// Removes the current activation (incl. unlocking of monitors)
duke@435	165	// and sets up the return address. This code is also used for
duke@435	166	// exception unwindwing. In that case, we do not want to throw
duke@435	167	// IllegalMonitorStateExceptions, since that might get us into an
duke@435	168	// infinite rethrow exception loop.
duke@435	169	// Additionally this code is used for popFrame and earlyReturn.
duke@435	170	// In popFrame case we want to skip throwing an exception,
duke@435	171	// installing an exception, and notifying jvmdi.
duke@435	172	// In earlyReturn case we only want to skip throwing an exception
duke@435	173	// and installing an exception.
duke@435	174	void remove_activation(TosState state, Register ret_addr,
duke@435	175	bool throw_monitor_exception = true,
duke@435	176	bool install_monitor_exception = true,
duke@435	177	bool notify_jvmdi = true);
never@739	178	#endif // CC_INTERP
duke@435	179
duke@435	180	// Object locking
duke@435	181	void lock_object (Register lock_reg);
duke@435	182	void unlock_object(Register lock_reg);
duke@435	183
never@739	184	#ifndef CC_INTERP
never@739	185
duke@435	186	// Interpreter profiling operations
duke@435	187	void set_method_data_pointer_for_bcp();
duke@435	188	void test_method_data_pointer(Register mdp, Label& zero_continue);
duke@435	189	void verify_method_data_pointer();
duke@435	190
duke@435	191	void set_mdp_data_at(Register mdp_in, int constant, Register value);
duke@435	192	void increment_mdp_data_at(Address data, bool decrement = false);
duke@435	193	void increment_mdp_data_at(Register mdp_in, int constant,
duke@435	194	bool decrement = false);
duke@435	195	void increment_mdp_data_at(Register mdp_in, Register reg, int constant,
duke@435	196	bool decrement = false);
iveresov@2138	197	void increment_mask_and_jump(Address counter_addr,
iveresov@2138	198	int increment, int mask,
iveresov@2138	199	Register scratch, bool preloaded,
iveresov@2138	200	Condition cond, Label* where);
duke@435	201	void set_mdp_flag_at(Register mdp_in, int flag_constant);
duke@435	202	void test_mdp_data_at(Register mdp_in, int offset, Register value,
duke@435	203	Register test_value_out,
duke@435	204	Label& not_equal_continue);
duke@435	205
duke@435	206	void record_klass_in_profile(Register receiver, Register mdp,
kvn@1641	207	Register reg2, bool is_virtual_call);
duke@435	208	void record_klass_in_profile_helper(Register receiver, Register mdp,
kvn@1641	209	Register reg2, int start_row,
kvn@1641	210	Label& done, bool is_virtual_call);
duke@435	211
duke@435	212	void update_mdp_by_offset(Register mdp_in, int offset_of_offset);
duke@435	213	void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp);
duke@435	214	void update_mdp_by_constant(Register mdp_in, int constant);
duke@435	215	void update_mdp_for_ret(Register return_bci);
duke@435	216
duke@435	217	void profile_taken_branch(Register mdp, Register bumped_count);
duke@435	218	void profile_not_taken_branch(Register mdp);
duke@435	219	void profile_call(Register mdp);
duke@435	220	void profile_final_call(Register mdp);
duke@435	221	void profile_virtual_call(Register receiver, Register mdp,
twisti@1543	222	Register scratch2,
twisti@1543	223	bool receiver_can_be_null = false);
duke@435	224	void profile_ret(Register return_bci, Register mdp);
duke@435	225	void profile_null_seen(Register mdp);
duke@435	226	void profile_typecheck(Register mdp, Register klass, Register scratch);
duke@435	227	void profile_typecheck_failed(Register mdp);
duke@435	228	void profile_switch_default(Register mdp);
duke@435	229	void profile_switch_case(Register index_in_scratch, Register mdp,
duke@435	230	Register scratch2);
duke@435	231
duke@435	232	// Debugging
duke@435	233	// only if +VerifyOops && state == atos
duke@435	234	void verify_oop(Register reg, TosState state = atos);
duke@435	235	// only if +VerifyFPU && (state == ftos || state == dtos)
duke@435	236	void verify_FPU(int stack_depth, TosState state = ftos);
duke@435	237
never@739	238	#endif // !CC_INTERP
never@739	239
duke@435	240	typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode;
duke@435	241
duke@435	242	// support for jvmti/dtrace
duke@435	243	void notify_method_entry();
duke@435	244	void notify_method_exit(TosState state, NotifyMethodExitMode mode);
duke@435	245	};