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comparison src/cpu/x86/vm/interp_masm_x86_64.hpp @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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1 /*
2 * Copyright 2003-2007 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 // This file specializes the assember with interpreter-specific macros
26
27
28 class InterpreterMacroAssembler
29 : public MacroAssembler {
30 protected:
31 // Interpreter specific version of call_VM_base
32 virtual void call_VM_leaf_base(address entry_point,
33 int number_of_arguments);
34
35 virtual void call_VM_base(Register oop_result,
36 Register java_thread,
37 Register last_java_sp,
38 address entry_point,
39 int number_of_arguments,
40 bool check_exceptions);
41
42 virtual void check_and_handle_popframe(Register java_thread);
43 virtual void check_and_handle_earlyret(Register java_thread);
44
45 // base routine for all dispatches
46 void dispatch_base(TosState state, address* table, bool verifyoop = true);
47
48 public:
49 InterpreterMacroAssembler(CodeBuffer* code)
50 : MacroAssembler(code)
51 {}
52
53 void load_earlyret_value(TosState state);
54
55 // Interpreter-specific registers
56 void save_bcp()
57 {
58 movq(Address(rbp, frame::interpreter_frame_bcx_offset * wordSize), r13);
59 }
60
61 void restore_bcp()
62 {
63 movq(r13, Address(rbp, frame::interpreter_frame_bcx_offset * wordSize));
64 }
65
66 void restore_locals()
67 {
68 movq(r14, Address(rbp, frame::interpreter_frame_locals_offset * wordSize));
69 }
70
71 // Helpers for runtime call arguments/results
72 void get_method(Register reg)
73 {
74 movq(reg, Address(rbp, frame::interpreter_frame_method_offset * wordSize));
75 }
76
77 void get_constant_pool(Register reg)
78 {
79 get_method(reg);
80 movq(reg, Address(reg, methodOopDesc::constants_offset()));
81 }
82
83 void get_constant_pool_cache(Register reg)
84 {
85 get_constant_pool(reg);
86 movq(reg, Address(reg, constantPoolOopDesc::cache_offset_in_bytes()));
87 }
88
89 void get_cpool_and_tags(Register cpool, Register tags)
90 {
91 get_constant_pool(cpool);
92 movq(tags, Address(cpool, constantPoolOopDesc::tags_offset_in_bytes()));
93 }
94
95 void get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset);
96 void get_cache_and_index_at_bcp(Register cache, Register index,
97 int bcp_offset);
98 void get_cache_entry_pointer_at_bcp(Register cache, Register tmp,
99 int bcp_offset);
100
101 void pop_ptr(Register r = rax);
102 void pop_i(Register r = rax);
103 void pop_l(Register r = rax);
104 void pop_f(XMMRegister r = xmm0);
105 void pop_d(XMMRegister r = xmm0);
106 void push_ptr(Register r = rax);
107 void push_i(Register r = rax);
108 void push_l(Register r = rax);
109 void push_f(XMMRegister r = xmm0);
110 void push_d(XMMRegister r = xmm0);
111
112 void pop(TosState state); // transition vtos -> state
113 void push(TosState state); // transition state -> vtos
114
115 // Tagged stack support, pop and push both tag and value.
116 void pop_ptr(Register r, Register tag);
117 void push_ptr(Register r, Register tag);
118
119 DEBUG_ONLY(void verify_stack_tag(frame::Tag t);)
120
121 // Tagged stack helpers for swap and dup
122 void load_ptr_and_tag(int n, Register val, Register tag);
123 void store_ptr_and_tag(int n, Register val, Register tag);
124
125 // Tagged Local support
126 void tag_local(frame::Tag tag, int n);
127 void tag_local(Register tag, int n);
128 void tag_local(frame::Tag tag, Register idx);
129 void tag_local(Register tag, Register idx);
130
131 #ifdef ASSERT
132 void verify_local_tag(frame::Tag tag, int n);
133 void verify_local_tag(frame::Tag tag, Register idx);
134 #endif // ASSERT
135
136 void empty_expression_stack()
137 {
138 movq(rsp, Address(rbp, frame::interpreter_frame_monitor_block_top_offset *
139 wordSize));
140 // NULL last_sp until next java call
141 movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD);
142 }
143
144 // Super call_VM calls - correspond to MacroAssembler::call_VM(_leaf) calls
145 void super_call_VM_leaf(address entry_point);
146 void super_call_VM_leaf(address entry_point, Register arg_1);
147 void super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2);
148 void super_call_VM_leaf(address entry_point,
149 Register arg_1, Register arg_2, Register arg_3);
150
151 // Generate a subtype check: branch to ok_is_subtype if sub_klass is
152 // a subtype of super_klass.
153 void gen_subtype_check( Register sub_klass, Label &ok_is_subtype );
154
155 // Dispatching
156 void dispatch_prolog(TosState state, int step = 0);
157 void dispatch_epilog(TosState state, int step = 0);
158 // dispatch via ebx (assume ebx is loaded already)
159 void dispatch_only(TosState state);
160 // dispatch normal table via ebx (assume ebx is loaded already)
161 void dispatch_only_normal(TosState state);
162 void dispatch_only_noverify(TosState state);
163 // load ebx from [esi + step] and dispatch via ebx
164 void dispatch_next(TosState state, int step = 0);
165 // load ebx from [esi] and dispatch via ebx and table
166 void dispatch_via (TosState state, address* table);
167
168 // jump to an invoked target
169 void jump_from_interpreted(Register method, Register temp);
170
171
172 // Returning from interpreted functions
173 //
174 // Removes the current activation (incl. unlocking of monitors)
175 // and sets up the return address. This code is also used for
176 // exception unwindwing. In that case, we do not want to throw
177 // IllegalMonitorStateExceptions, since that might get us into an
178 // infinite rethrow exception loop.
179 // Additionally this code is used for popFrame and earlyReturn.
180 // In popFrame case we want to skip throwing an exception,
181 // installing an exception, and notifying jvmdi.
182 // In earlyReturn case we only want to skip throwing an exception
183 // and installing an exception.
184 void remove_activation(TosState state, Register ret_addr,
185 bool throw_monitor_exception = true,
186 bool install_monitor_exception = true,
187 bool notify_jvmdi = true);
188
189 // Object locking
190 void lock_object (Register lock_reg);
191 void unlock_object(Register lock_reg);
192
193 // Interpreter profiling operations
194 void set_method_data_pointer_for_bcp();
195 void test_method_data_pointer(Register mdp, Label& zero_continue);
196 void verify_method_data_pointer();
197
198 void set_mdp_data_at(Register mdp_in, int constant, Register value);
199 void increment_mdp_data_at(Address data, bool decrement = false);
200 void increment_mdp_data_at(Register mdp_in, int constant,
201 bool decrement = false);
202 void increment_mdp_data_at(Register mdp_in, Register reg, int constant,
203 bool decrement = false);
204 void set_mdp_flag_at(Register mdp_in, int flag_constant);
205 void test_mdp_data_at(Register mdp_in, int offset, Register value,
206 Register test_value_out,
207 Label& not_equal_continue);
208
209 void record_klass_in_profile(Register receiver, Register mdp,
210 Register reg2);
211 void record_klass_in_profile_helper(Register receiver, Register mdp,
212 Register reg2,
213 int start_row, Label& done);
214
215 void update_mdp_by_offset(Register mdp_in, int offset_of_offset);
216 void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp);
217 void update_mdp_by_constant(Register mdp_in, int constant);
218 void update_mdp_for_ret(Register return_bci);
219
220 void profile_taken_branch(Register mdp, Register bumped_count);
221 void profile_not_taken_branch(Register mdp);
222 void profile_call(Register mdp);
223 void profile_final_call(Register mdp);
224 void profile_virtual_call(Register receiver, Register mdp,
225 Register scratch2);
226 void profile_ret(Register return_bci, Register mdp);
227 void profile_null_seen(Register mdp);
228 void profile_typecheck(Register mdp, Register klass, Register scratch);
229 void profile_typecheck_failed(Register mdp);
230 void profile_switch_default(Register mdp);
231 void profile_switch_case(Register index_in_scratch, Register mdp,
232 Register scratch2);
233
234 // Debugging
235 // only if +VerifyOops && state == atos
236 void verify_oop(Register reg, TosState state = atos);
237 // only if +VerifyFPU && (state == ftos || state == dtos)
238 void verify_FPU(int stack_depth, TosState state = ftos);
239
240 typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode;
241
242 // support for jvmti/dtrace
243 void notify_method_entry();
244 void notify_method_exit(TosState state, NotifyMethodExitMode mode);
245 };