Tue, 26 Jul 2016 17:06:17 +0800
Add multiply word to GPR instruction (mul) in MIPS assembler.
1 /*
2 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2015, 2016, Loongson Technology. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
26 // This file specializes the assember with interpreter-specific macros
28 #ifndef CPU_MIPS_VM_INTERP_MASM_MIPS_64_HPP
29 #define CPU_MIPS_VM_INTERP_MASM_MIPS_64_HPP
31 #include "asm/macroAssembler.hpp"
32 #include "asm/macroAssembler.inline.hpp"
33 #include "interpreter/invocationCounter.hpp"
34 #include "runtime/frame.hpp"
37 class InterpreterMacroAssembler: public MacroAssembler {
38 #ifndef CC_INTERP
39 private:
40 Register _locals_register; // register that contains the pointer to the locals
41 Register _bcp_register; // register that contains the bcp
43 protected:
44 // Interpreter specific version of call_VM_base
45 virtual void call_VM_leaf_base(address entry_point,
46 int number_of_arguments);
48 virtual void call_VM_base(Register oop_result,
49 Register java_thread,
50 Register last_java_sp,
51 address entry_point,
52 int number_of_arguments,
53 bool check_exceptions);
55 virtual void check_and_handle_popframe(Register java_thread);
56 virtual void check_and_handle_earlyret(Register java_thread);
58 // base routine for all dispatches
59 void dispatch_base(TosState state, address* table, bool verifyoop = true);
60 #endif // CC_INTERP
62 public:
63 InterpreterMacroAssembler(CodeBuffer* code) : MacroAssembler(code), _locals_register(LVP), _bcp_register(BCP) {}
65 void get_2_byte_integer_at_bcp(Register reg, Register tmp, int offset);
66 void get_4_byte_integer_at_bcp(Register reg, Register tmp, int offset);
68 void load_earlyret_value(TosState state);
70 #ifdef CC_INTERP
71 void save_bcp() { /* not needed in c++ interpreter and harmless */ }
72 void restore_bcp() { /* not needed in c++ interpreter and harmless */ }
74 // Helpers for runtime call arguments/results
75 void get_method(Register reg);
77 #else
79 // Interpreter-specific registers
80 void save_bcp() {
81 sd(BCP, FP, frame::interpreter_frame_bcx_offset * wordSize);
82 }
84 void restore_bcp() {
85 ld(BCP, FP, frame::interpreter_frame_bcx_offset * wordSize);
86 }
88 void restore_locals() {
89 ld(LVP, FP, frame::interpreter_frame_locals_offset * wordSize);
90 }
92 // Helpers for runtime call arguments/results
93 void get_method(Register reg) {
94 ld(reg, FP, frame::interpreter_frame_method_offset * wordSize);
95 }
97 void get_const(Register reg){
98 get_method(reg);
99 ld(reg, reg, in_bytes(Method::const_offset()));
100 }
102 void get_constant_pool(Register reg) {
103 get_const(reg);
104 ld(reg, reg, in_bytes(ConstMethod::constants_offset()));
105 }
107 void get_constant_pool_cache(Register reg) {
108 get_constant_pool(reg);
109 ld(reg, reg, ConstantPool::cache_offset_in_bytes());
110 }
112 void get_cpool_and_tags(Register cpool, Register tags) {
113 get_constant_pool(cpool);
114 ld(tags, cpool, ConstantPool::tags_offset_in_bytes());
115 }
117 void get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset);
118 void get_cache_and_index_at_bcp(Register cache, Register index,
119 int bcp_offset, size_t index_size = sizeof (u2));
120 void get_cache_and_index_and_bytecode_at_bcp(Register cache, Register index,
121 Register bytecode, int byte_no,
122 int bcp_offset, size_t index_size = sizeof(u2));
123 void get_cache_entry_pointer_at_bcp(Register cache, Register tmp,
124 int bcp_offset, size_t index_size = sizeof(u2));
125 void get_cache_index_at_bcp(Register index, int bcp_offset, size_t index_size = sizeof(u2));
126 void get_method_counters(Register method, Register mcs, Label& skip);
127 // load cpool->resolved_references(index);
128 void load_resolved_reference_at_index(Register result, Register index);
130 void pop_ptr(Register r = V0);
131 void pop_i(Register r = V0);
132 //void pop_l(Register r = V0);
133 void pop_l(Register lo = V0, Register hi = V1);
134 //void pop_f(XMMRegister r = xmm0);
135 //void pop_d(XMMRegister r = xmm0);
136 void pop_f();
137 void pop_d();
138 void push_ptr(Register r = V0);
139 void push_i(Register r = V0);
140 //void push_l(Register r = V0);
141 void push_l(Register lo = V0, Register hi = V1);
142 //void push_f(XMMRegister r = xmm0);
143 //void push_d(XMMRegister r = xmm0);
144 void push_f();
145 void push_d(FloatRegister r = F0);
147 void pop(Register r ) { ((MacroAssembler*)this)->pop(r); }
149 void push(Register r ) { ((MacroAssembler*)this)->push(r); }
150 //void push(int32_t imm ) { ((MacroAssembler*)this)->push(imm); }
152 void pop_dtos_to_esp();
153 void pop_ftos_to_esp();
155 void pop(TosState state); // transition vtos -> state
156 void push(TosState state); // transition state -> vtos
157 /*
158 // Tagged stack support, pop and push both tag and value.
159 void pop_ptr(Register r, Register tag);
160 void push_ptr(Register r, Register tag);
161 #endif // CC_INTERP
163 DEBUG_ONLY(void verify_stack_tag(frame::Tag t);)
165 #ifndef CC_INTERP
167 // Tagged stack helpers for swap and dup
168 void load_ptr_and_tag(int n, Register val, Register tag);
169 void store_ptr_and_tag(int n, Register val, Register tag);
171 // Tagged Local support
172 void tag_local(frame::Tag tag, int n);
173 void tag_local(Register tag, int n);
174 void tag_local(frame::Tag tag, Register idx);
175 void tag_local(Register tag, Register idx);
177 #ifdef ASSERT
178 void verify_local_tag(frame::Tag tag, int n);
179 void verify_local_tag(frame::Tag tag, Register idx);
180 #endif // ASSERT
182 */
183 void empty_expression_stack()
184 {
185 ld(SP, FP, frame::interpreter_frame_monitor_block_top_offset * wordSize);
186 // NULL last_sp until next java call
187 sd(R0, FP, frame::interpreter_frame_last_sp_offset * wordSize);
188 }
190 // Super call_VM calls - correspond to MacroAssembler::call_VM(_leaf) calls
191 /*void super_call_VM_leaf(address entry_point);
192 void super_call_VM_leaf(address entry_point, Register arg_1);
193 void super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2);
194 void super_call_VM_leaf(address entry_point,
195 Register arg_1, Register arg_2, Register arg_3);*/
196 void load_ptr(int n, Register val);
197 void store_ptr(int n, Register val);
199 // Generate a subtype check: branch to ok_is_subtype if sub_klass is
200 // a subtype of super_klass.
201 //void gen_subtype_check( Register sub_klass, Label &ok_is_subtype );
202 void gen_subtype_check( Register Rsup_klass, Register sub_klass, Label &ok_is_subtype );
204 // Dispatching
205 void dispatch_prolog(TosState state, int step = 0);
206 void dispatch_epilog(TosState state, int step = 0);
207 // dispatch via ebx (assume ebx is loaded already)
208 void dispatch_only(TosState state);
209 // dispatch normal table via ebx (assume ebx is loaded already)
210 void dispatch_only_normal(TosState state);
211 void dispatch_only_noverify(TosState state);
212 // load ebx from [esi + step] and dispatch via ebx
213 void dispatch_next(TosState state, int step = 0);
214 // load ebx from [esi] and dispatch via ebx and table
215 void dispatch_via (TosState state, address* table);
217 // jump to an invoked target
218 void prepare_to_jump_from_interpreted();
219 void jump_from_interpreted(Register method, Register temp);
222 // Returning from interpreted functions
223 //
224 // Removes the current activation (incl. unlocking of monitors)
225 // and sets up the return address. This code is also used for
226 // exception unwindwing. In that case, we do not want to throw
227 // IllegalMonitorStateExceptions, since that might get us into an
228 // infinite rethrow exception loop.
229 // Additionally this code is used for popFrame and earlyReturn.
230 // In popFrame case we want to skip throwing an exception,
231 // installing an exception, and notifying jvmdi.
232 // In earlyReturn case we only want to skip throwing an exception
233 // and installing an exception.
234 void remove_activation(TosState state, Register ret_addr,
235 bool throw_monitor_exception = true,
236 bool install_monitor_exception = true,
237 bool notify_jvmdi = true);
238 #endif // CC_INTERP
240 // Object locking
241 void lock_object (Register lock_reg);
242 void unlock_object(Register lock_reg);
244 #ifndef CC_INTERP
246 // Interpreter profiling operations
247 void set_method_data_pointer_for_bcp();
248 void test_method_data_pointer(Register mdp, Label& zero_continue);
249 void verify_method_data_pointer();
251 void set_mdp_data_at(Register mdp_in, int constant, Register value);
252 void increment_mdp_data_at(Address data, bool decrement = false);
253 void increment_mdp_data_at(Register mdp_in, int constant,
254 bool decrement = false);
255 void increment_mdp_data_at(Register mdp_in, Register reg, int constant,
256 bool decrement = false);
257 /* void increment_mask_and_jump(Address counter_addr,
258 int increment, int mask,
259 Register scratch, bool preloaded,
260 Condition cond, Label* where); */
261 void set_mdp_flag_at(Register mdp_in, int flag_constant);
262 void test_mdp_data_at(Register mdp_in, int offset, Register value,
263 Register test_value_out,
264 Label& not_equal_continue);
266 void record_klass_in_profile(Register receiver, Register mdp,
267 Register reg2, bool is_virtual_call);
268 void record_klass_in_profile_helper(Register receiver, Register mdp,
269 Register reg2, int start_row,
270 Label& done, bool is_virtual_call);
272 void update_mdp_by_offset(Register mdp_in, int offset_of_offset);
273 void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp);
274 void update_mdp_by_constant(Register mdp_in, int constant);
275 void update_mdp_for_ret(Register return_bci);
277 void profile_taken_branch(Register mdp, Register bumped_count);
278 void profile_not_taken_branch(Register mdp);
279 void profile_call(Register mdp);
280 void profile_final_call(Register mdp);
281 void profile_virtual_call(Register receiver, Register mdp,
282 Register scratch2,
283 bool receiver_can_be_null = false);
284 void profile_ret(Register return_bci, Register mdp);
285 void profile_checkcast(bool is_null , Register mdp);
286 void profile_null_seen(Register mdp);
287 void profile_typecheck(Register mdp, Register klass, Register scratch);
288 void profile_typecheck_failed(Register mdp);
289 void profile_switch_default(Register mdp);
290 void profile_switch_case(Register index_in_scratch, Register mdp,
291 Register scratch2);
293 // Debugging
294 // only if +VerifyOops && state == atos
295 void verify_oop(Register reg, TosState state = atos);
296 // only if +VerifyFPU && (state == ftos || state == dtos)
297 void verify_FPU(int stack_depth, TosState state = ftos);
299 void profile_obj_type(Register obj, const Address& mdo_addr);
300 void profile_arguments_type(Register mdp, Register callee, Register tmp, bool is_virtual);
301 void profile_return_type(Register mdp, Register ret, Register tmp);
302 void profile_parameters_type(Register mdp, Register tmp1, Register tmp2);
303 #endif // !CC_INTERP
305 typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode;
307 // support for jvmti/dtrace
308 void notify_method_entry();
309 void notify_method_exit(bool is_native_method, TosState state, NotifyMethodExitMode mode);
310 void save_return_value(TosState state, bool is_native_call);
311 void restore_return_value(TosState state, bool is_native_call);
312 };
314 #endif // CPU_MIPS_VM_INTERP_MASM_MIPS_64_HPP