Thu, 03 Jan 2013 16:30:47 -0800
8005544: Use 256bit YMM registers in arraycopy stubs on x86
Summary: Use YMM registers in arraycopy and array_fill stubs.
Reviewed-by: roland, twisti
1 /*
2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. 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.
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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.
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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23 */
25 #ifndef CPU_X86_VM_INTERP_MASM_X86_32_HPP
26 #define CPU_X86_VM_INTERP_MASM_X86_32_HPP
28 #include "asm/macroAssembler.hpp"
29 #include "asm/macroAssembler.inline.hpp"
30 #include "interpreter/invocationCounter.hpp"
31 #include "runtime/frame.hpp"
33 // This file specializes the assember with interpreter-specific macros
36 class InterpreterMacroAssembler: public MacroAssembler {
37 #ifndef CC_INTERP
38 protected:
39 // Interpreter specific version of call_VM_base
40 virtual void call_VM_leaf_base(
41 address entry_point,
42 int number_of_arguments
43 );
45 virtual void call_VM_base(
46 Register oop_result,
47 Register java_thread,
48 Register last_java_sp,
49 address entry_point,
50 int number_of_arguments,
51 bool check_exceptions
52 );
54 virtual void check_and_handle_popframe(Register java_thread);
55 virtual void check_and_handle_earlyret(Register java_thread);
57 // base routine for all dispatches
58 void dispatch_base(TosState state, address* table, bool verifyoop = true);
59 #endif /* CC_INTERP */
61 public:
62 InterpreterMacroAssembler(CodeBuffer* code) : MacroAssembler(code) {}
64 void load_earlyret_value(TosState state);
66 // Interpreter-specific registers
67 #ifdef CC_INTERP
68 void save_bcp() { /* not needed in c++ interpreter and harmless */ }
69 void restore_bcp() { /* not needed in c++ interpreter and harmless */ }
71 // Helpers for runtime call arguments/results
72 void get_method(Register reg);
74 #else
76 void save_bcp() { movptr(Address(rbp, frame::interpreter_frame_bcx_offset * wordSize), rsi); }
77 void restore_bcp() { movptr(rsi, Address(rbp, frame::interpreter_frame_bcx_offset * wordSize)); }
78 void restore_locals() { movptr(rdi, Address(rbp, frame::interpreter_frame_locals_offset * wordSize)); }
80 // Helpers for runtime call arguments/results
81 void get_method(Register reg) { movptr(reg, Address(rbp, frame::interpreter_frame_method_offset * wordSize)); }
82 void get_const(Register reg) { get_method(reg); movptr(reg, Address(reg, Method::const_offset())); }
83 void get_constant_pool(Register reg) { get_const(reg); movptr(reg, Address(reg, ConstMethod::constants_offset())); }
84 void get_constant_pool_cache(Register reg) { get_constant_pool(reg); movptr(reg, Address(reg, ConstantPool::cache_offset_in_bytes())); }
85 void get_cpool_and_tags(Register cpool, Register tags) { get_constant_pool(cpool); movptr(tags, Address(cpool, ConstantPool::tags_offset_in_bytes()));
86 }
87 void get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset);
88 void get_cache_and_index_at_bcp(Register cache, Register index, int bcp_offset, size_t index_size = sizeof(u2));
89 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));
90 void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset, size_t index_size = sizeof(u2));
91 void get_cache_index_at_bcp(Register index, int bcp_offset, size_t index_size = sizeof(u2));
93 // load cpool->resolved_references(index);
94 void load_resolved_reference_at_index(Register result, Register index);
96 // Expression stack
97 void f2ieee(); // truncate ftos to 32bits
98 void d2ieee(); // truncate dtos to 64bits
100 void pop_ptr(Register r = rax);
101 void pop_i(Register r = rax);
102 void pop_l(Register lo = rax, Register hi = rdx);
103 void pop_f();
104 void pop_d();
106 void push_ptr(Register r = rax);
107 void push_i(Register r = rax);
108 void push_l(Register lo = rax, Register hi = rdx);
109 void push_d(Register r = rax);
110 void push_f();
112 void pop(TosState state); // transition vtos -> state
113 void push(TosState state); // transition state -> vtos
115 void pop(Register r ) { ((MacroAssembler*)this)->pop(r); }
117 void push(Register r ) { ((MacroAssembler*)this)->push(r); }
118 void push(int32_t imm ) { ((MacroAssembler*)this)->push(imm); }
120 // These are dummies to prevent surprise implicit conversions to Register
121 void pop(void* v ); // Add unimplemented ambiguous method
122 void push(void* v ); // Add unimplemented ambiguous method
124 void empty_expression_stack() {
125 movptr(rsp, Address(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize));
126 // NULL last_sp until next java call
127 movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD);
128 }
130 // Helpers for swap and dup
131 void load_ptr(int n, Register val);
132 void store_ptr(int n, Register val);
134 // Generate a subtype check: branch to ok_is_subtype if sub_klass is
135 // a subtype of super_klass. EAX holds the super_klass. Blows ECX
136 // and EDI. Register sub_klass cannot be any of the above.
137 void gen_subtype_check( Register sub_klass, Label &ok_is_subtype );
139 // Dispatching
140 void dispatch_prolog(TosState state, int step = 0);
141 void dispatch_epilog(TosState state, int step = 0);
142 void dispatch_only(TosState state); // dispatch via rbx, (assume rbx, is loaded already)
143 void dispatch_only_normal(TosState state); // dispatch normal table via rbx, (assume rbx, is loaded already)
144 void dispatch_only_noverify(TosState state);
145 void dispatch_next(TosState state, int step = 0); // load rbx, from [esi + step] and dispatch via rbx,
146 void dispatch_via (TosState state, address* table); // load rbx, from [esi] and dispatch via rbx, and table
149 // jump to an invoked target
150 void prepare_to_jump_from_interpreted();
151 void jump_from_interpreted(Register method, Register temp);
153 // Returning from interpreted functions
154 //
155 // Removes the current activation (incl. unlocking of monitors)
156 // and sets up the return address. This code is also used for
157 // exception unwindwing. In that case, we do not want to throw
158 // IllegalMonitorStateExceptions, since that might get us into an
159 // infinite rethrow exception loop.
160 // Additionally this code is used for popFrame and earlyReturn.
161 // In popFrame case we want to skip throwing an exception,
162 // installing an exception, and notifying jvmdi.
163 // In earlyReturn case we only want to skip throwing an exception
164 // and installing an exception.
165 void remove_activation(TosState state, Register ret_addr,
166 bool throw_monitor_exception = true,
167 bool install_monitor_exception = true,
168 bool notify_jvmdi = true);
169 #endif /* !CC_INTERP */
171 // Debugging
172 void verify_oop(Register reg, TosState state = atos); // only if +VerifyOops && state == atos
173 #ifndef CC_INTERP
174 void verify_FPU(int stack_depth, TosState state = ftos); // only if +VerifyFPU && (state == ftos || state == dtos)
176 #endif /* !CC_INTERP */
178 // Object locking
179 void lock_object (Register lock_reg);
180 void unlock_object(Register lock_reg);
182 #ifndef CC_INTERP
184 // Interpreter profiling operations
185 void set_method_data_pointer_for_bcp();
186 void test_method_data_pointer(Register mdp, Label& zero_continue);
187 void verify_method_data_pointer();
189 void set_mdp_data_at(Register mdp_in, int constant, Register value);
190 void increment_mdp_data_at(Address data, bool decrement = false);
191 void increment_mdp_data_at(Register mdp_in, int constant,
192 bool decrement = false);
193 void increment_mdp_data_at(Register mdp_in, Register reg, int constant,
194 bool decrement = false);
195 void increment_mask_and_jump(Address counter_addr,
196 int increment, int mask,
197 Register scratch, bool preloaded,
198 Condition cond, Label* where);
199 void set_mdp_flag_at(Register mdp_in, int flag_constant);
200 void test_mdp_data_at(Register mdp_in, int offset, Register value,
201 Register test_value_out,
202 Label& not_equal_continue);
204 void record_klass_in_profile(Register receiver, Register mdp,
205 Register reg2, bool is_virtual_call);
206 void record_klass_in_profile_helper(Register receiver, Register mdp,
207 Register reg2, int start_row,
208 Label& done, bool is_virtual_call);
210 void update_mdp_by_offset(Register mdp_in, int offset_of_offset);
211 void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp);
212 void update_mdp_by_constant(Register mdp_in, int constant);
213 void update_mdp_for_ret(Register return_bci);
215 void profile_taken_branch(Register mdp, Register bumped_count);
216 void profile_not_taken_branch(Register mdp);
217 void profile_call(Register mdp);
218 void profile_final_call(Register mdp);
219 void profile_virtual_call(Register receiver, Register mdp, Register scratch2,
220 bool receiver_can_be_null = false);
221 void profile_ret(Register return_bci, Register mdp);
222 void profile_null_seen(Register mdp);
223 void profile_typecheck(Register mdp, Register klass, Register scratch);
224 void profile_typecheck_failed(Register mdp);
225 void profile_switch_default(Register mdp);
226 void profile_switch_case(Register index_in_scratch, Register mdp, Register scratch2);
228 #endif /* !CC_INTERP */
230 typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode;
232 // support for jvmti
233 void notify_method_entry();
234 void notify_method_exit(TosState state, NotifyMethodExitMode mode);
236 };
238 #endif // CPU_X86_VM_INTERP_MASM_X86_32_HPP