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src/cpu/x86/vm/interp_masm_x86_64.hpp@448691f285a5 (annotated)

src/cpu/x86/vm/interp_masm_x86_64.hpp

Thu, 03 Nov 2011 04:12:49 -0700

author

twisti

date

Thu, 03 Nov 2011 04:12:49 -0700

changeset 3252

448691f285a5

parent 3050

fdb992d83a87

child 3826

2fe087c3e814

permissions

-rw-r--r--

7106944: assert(_pc == *pc_addr) failed may be too strong
Reviewed-by: kvn, never

duke@435	1	/*
never@2868	2	* Copyright (c) 2003, 2011, 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 CPU_X86_VM_INTERP_MASM_X86_64_HPP
stefank@2314	26	#define CPU_X86_VM_INTERP_MASM_X86_64_HPP
stefank@2314	27
stefank@2314	28	#include "assembler_x86.inline.hpp"
stefank@2314	29	#include "interpreter/invocationCounter.hpp"
stefank@2314	30
duke@435	31	// This file specializes the assember with interpreter-specific macros
duke@435	32
duke@435	33
never@739	34	class InterpreterMacroAssembler: public MacroAssembler {
never@739	35	#ifndef CC_INTERP
duke@435	36	protected:
duke@435	37	// Interpreter specific version of call_VM_base
duke@435	38	virtual void call_VM_leaf_base(address entry_point,
duke@435	39	int number_of_arguments);
duke@435	40
duke@435	41	virtual void call_VM_base(Register oop_result,
duke@435	42	Register java_thread,
duke@435	43	Register last_java_sp,
duke@435	44	address entry_point,
duke@435	45	int number_of_arguments,
duke@435	46	bool check_exceptions);
duke@435	47
duke@435	48	virtual void check_and_handle_popframe(Register java_thread);
duke@435	49	virtual void check_and_handle_earlyret(Register java_thread);
duke@435	50
duke@435	51	// base routine for all dispatches
duke@435	52	void dispatch_base(TosState state, address* table, bool verifyoop = true);
never@739	53	#endif // CC_INTERP
duke@435	54
duke@435	55	public:
never@739	56	InterpreterMacroAssembler(CodeBuffer* code) : MacroAssembler(code) {}
duke@435	57
duke@435	58	void load_earlyret_value(TosState state);
duke@435	59
never@739	60	#ifdef CC_INTERP
never@739	61	void save_bcp() { /* not needed in c++ interpreter and harmless */ }
never@739	62	void restore_bcp() { /* not needed in c++ interpreter and harmless */ }
never@739	63
never@739	64	// Helpers for runtime call arguments/results
never@739	65	void get_method(Register reg);
never@739	66
never@739	67	#else
never@739	68
duke@435	69	// Interpreter-specific registers
never@739	70	void save_bcp() {
never@739	71	movptr(Address(rbp, frame::interpreter_frame_bcx_offset * wordSize), r13);
duke@435	72	}
duke@435	73
never@739	74	void restore_bcp() {
never@739	75	movptr(r13, Address(rbp, frame::interpreter_frame_bcx_offset * wordSize));
duke@435	76	}
duke@435	77
never@739	78	void restore_locals() {
never@739	79	movptr(r14, Address(rbp, frame::interpreter_frame_locals_offset * wordSize));
duke@435	80	}
duke@435	81
duke@435	82	// Helpers for runtime call arguments/results
never@739	83	void get_method(Register reg) {
never@739	84	movptr(reg, Address(rbp, frame::interpreter_frame_method_offset * wordSize));
duke@435	85	}
duke@435	86
never@739	87	void get_constant_pool(Register reg) {
duke@435	88	get_method(reg);
never@739	89	movptr(reg, Address(reg, methodOopDesc::constants_offset()));
duke@435	90	}
duke@435	91
never@739	92	void get_constant_pool_cache(Register reg) {
duke@435	93	get_constant_pool(reg);
never@739	94	movptr(reg, Address(reg, constantPoolOopDesc::cache_offset_in_bytes()));
duke@435	95	}
duke@435	96
never@739	97	void get_cpool_and_tags(Register cpool, Register tags) {
duke@435	98	get_constant_pool(cpool);
never@739	99	movptr(tags, Address(cpool, constantPoolOopDesc::tags_offset_in_bytes()));
duke@435	100	}
duke@435	101
duke@435	102	void get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset);
twisti@3050	103	void get_cache_and_index_at_bcp(Register cache, Register index, int bcp_offset, size_t index_size = sizeof(u2));
twisti@3050	104	void get_cache_and_index_and_bytecode_at_bcp(Register cache, Register index, Register bytecode, int byte_no, int bcp_offset, size_t index_size = sizeof(u2));
twisti@3050	105	void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset, size_t index_size = sizeof(u2));
jrose@1920	106	void get_cache_index_at_bcp(Register index, int bcp_offset, size_t index_size = sizeof(u2));
duke@435	107
duke@435	108	void pop_ptr(Register r = rax);
duke@435	109	void pop_i(Register r = rax);
duke@435	110	void pop_l(Register r = rax);
duke@435	111	void pop_f(XMMRegister r = xmm0);
duke@435	112	void pop_d(XMMRegister r = xmm0);
duke@435	113	void push_ptr(Register r = rax);
duke@435	114	void push_i(Register r = rax);
duke@435	115	void push_l(Register r = rax);
duke@435	116	void push_f(XMMRegister r = xmm0);
duke@435	117	void push_d(XMMRegister r = xmm0);
duke@435	118
never@739	119	void pop(Register r ) { ((MacroAssembler*)this)->pop(r); }
never@739	120
never@739	121	void push(Register r ) { ((MacroAssembler*)this)->push(r); }
never@739	122	void push(int32_t imm ) { ((MacroAssembler*)this)->push(imm); }
never@739	123
duke@435	124	void pop(TosState state); // transition vtos -> state
duke@435	125	void push(TosState state); // transition state -> vtos
duke@435	126
twisti@1861	127	void empty_expression_stack() {
never@739	128	movptr(rsp, Address(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize));
duke@435	129	// NULL last_sp until next java call
never@739	130	movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD);
duke@435	131	}
duke@435	132
twisti@1861	133	// Helpers for swap and dup
twisti@1861	134	void load_ptr(int n, Register val);
twisti@1861	135	void store_ptr(int n, Register val);
twisti@1861	136
duke@435	137	// Generate a subtype check: branch to ok_is_subtype if sub_klass is
duke@435	138	// a subtype of super_klass.
duke@435	139	void gen_subtype_check( Register sub_klass, Label &ok_is_subtype );
duke@435	140
duke@435	141	// Dispatching
duke@435	142	void dispatch_prolog(TosState state, int step = 0);
duke@435	143	void dispatch_epilog(TosState state, int step = 0);
duke@435	144	// dispatch via ebx (assume ebx is loaded already)
duke@435	145	void dispatch_only(TosState state);
duke@435	146	// dispatch normal table via ebx (assume ebx is loaded already)
duke@435	147	void dispatch_only_normal(TosState state);
duke@435	148	void dispatch_only_noverify(TosState state);
duke@435	149	// load ebx from [esi + step] and dispatch via ebx
duke@435	150	void dispatch_next(TosState state, int step = 0);
duke@435	151	// load ebx from [esi] and dispatch via ebx and table
duke@435	152	void dispatch_via (TosState state, address* table);
duke@435	153
duke@435	154	// jump to an invoked target
jrose@1145	155	void prepare_to_jump_from_interpreted();
duke@435	156	void jump_from_interpreted(Register method, Register temp);
duke@435	157
duke@435	158
duke@435	159	// Returning from interpreted functions
duke@435	160	//
duke@435	161	// Removes the current activation (incl. unlocking of monitors)
duke@435	162	// and sets up the return address. This code is also used for
duke@435	163	// exception unwindwing. In that case, we do not want to throw
duke@435	164	// IllegalMonitorStateExceptions, since that might get us into an
duke@435	165	// infinite rethrow exception loop.
duke@435	166	// Additionally this code is used for popFrame and earlyReturn.
duke@435	167	// In popFrame case we want to skip throwing an exception,
duke@435	168	// installing an exception, and notifying jvmdi.
duke@435	169	// In earlyReturn case we only want to skip throwing an exception
duke@435	170	// and installing an exception.
duke@435	171	void remove_activation(TosState state, Register ret_addr,
duke@435	172	bool throw_monitor_exception = true,
duke@435	173	bool install_monitor_exception = true,
duke@435	174	bool notify_jvmdi = true);
never@739	175	#endif // CC_INTERP
duke@435	176
duke@435	177	// Object locking
duke@435	178	void lock_object (Register lock_reg);
duke@435	179	void unlock_object(Register lock_reg);
duke@435	180
never@739	181	#ifndef CC_INTERP
never@739	182
duke@435	183	// Interpreter profiling operations
duke@435	184	void set_method_data_pointer_for_bcp();
duke@435	185	void test_method_data_pointer(Register mdp, Label& zero_continue);
duke@435	186	void verify_method_data_pointer();
duke@435	187
duke@435	188	void set_mdp_data_at(Register mdp_in, int constant, Register value);
duke@435	189	void increment_mdp_data_at(Address data, bool decrement = false);
duke@435	190	void increment_mdp_data_at(Register mdp_in, int constant,
duke@435	191	bool decrement = false);
duke@435	192	void increment_mdp_data_at(Register mdp_in, Register reg, int constant,
duke@435	193	bool decrement = false);
iveresov@2138	194	void increment_mask_and_jump(Address counter_addr,
iveresov@2138	195	int increment, int mask,
iveresov@2138	196	Register scratch, bool preloaded,
iveresov@2138	197	Condition cond, Label* where);
duke@435	198	void set_mdp_flag_at(Register mdp_in, int flag_constant);
duke@435	199	void test_mdp_data_at(Register mdp_in, int offset, Register value,
duke@435	200	Register test_value_out,
duke@435	201	Label& not_equal_continue);
duke@435	202
duke@435	203	void record_klass_in_profile(Register receiver, Register mdp,
kvn@1641	204	Register reg2, bool is_virtual_call);
duke@435	205	void record_klass_in_profile_helper(Register receiver, Register mdp,
kvn@1641	206	Register reg2, int start_row,
kvn@1641	207	Label& done, bool is_virtual_call);
duke@435	208
duke@435	209	void update_mdp_by_offset(Register mdp_in, int offset_of_offset);
duke@435	210	void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp);
duke@435	211	void update_mdp_by_constant(Register mdp_in, int constant);
duke@435	212	void update_mdp_for_ret(Register return_bci);
duke@435	213
duke@435	214	void profile_taken_branch(Register mdp, Register bumped_count);
duke@435	215	void profile_not_taken_branch(Register mdp);
duke@435	216	void profile_call(Register mdp);
duke@435	217	void profile_final_call(Register mdp);
duke@435	218	void profile_virtual_call(Register receiver, Register mdp,
twisti@1543	219	Register scratch2,
twisti@1543	220	bool receiver_can_be_null = false);
duke@435	221	void profile_ret(Register return_bci, Register mdp);
duke@435	222	void profile_null_seen(Register mdp);
duke@435	223	void profile_typecheck(Register mdp, Register klass, Register scratch);
duke@435	224	void profile_typecheck_failed(Register mdp);
duke@435	225	void profile_switch_default(Register mdp);
duke@435	226	void profile_switch_case(Register index_in_scratch, Register mdp,
duke@435	227	Register scratch2);
duke@435	228
duke@435	229	// Debugging
duke@435	230	// only if +VerifyOops && state == atos
duke@435	231	void verify_oop(Register reg, TosState state = atos);
duke@435	232	// only if +VerifyFPU && (state == ftos || state == dtos)
duke@435	233	void verify_FPU(int stack_depth, TosState state = ftos);
duke@435	234
never@739	235	#endif // !CC_INTERP
never@739	236
duke@435	237	typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode;
duke@435	238
duke@435	239	// support for jvmti/dtrace
duke@435	240	void notify_method_entry();
duke@435	241	void notify_method_exit(TosState state, NotifyMethodExitMode mode);
duke@435	242	};
stefank@2314	243
stefank@2314	244	#endif // CPU_X86_VM_INTERP_MASM_X86_64_HPP