Sun, 13 Apr 2008 17:43:42 -0400
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
Summary: Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv
Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold
duke@435 | 1 | /* |
duke@435 | 2 | * Copyright 2003-2007 Sun Microsystems, Inc. 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 | * |
duke@435 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
duke@435 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
duke@435 | 21 | * have any 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 | |
duke@435 | 28 | class InterpreterMacroAssembler |
duke@435 | 29 | : public MacroAssembler { |
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); |
duke@435 | 47 | |
duke@435 | 48 | public: |
duke@435 | 49 | InterpreterMacroAssembler(CodeBuffer* code) |
duke@435 | 50 | : MacroAssembler(code) |
duke@435 | 51 | {} |
duke@435 | 52 | |
duke@435 | 53 | void load_earlyret_value(TosState state); |
duke@435 | 54 | |
duke@435 | 55 | // Interpreter-specific registers |
duke@435 | 56 | void save_bcp() |
duke@435 | 57 | { |
duke@435 | 58 | movq(Address(rbp, frame::interpreter_frame_bcx_offset * wordSize), r13); |
duke@435 | 59 | } |
duke@435 | 60 | |
duke@435 | 61 | void restore_bcp() |
duke@435 | 62 | { |
duke@435 | 63 | movq(r13, Address(rbp, frame::interpreter_frame_bcx_offset * wordSize)); |
duke@435 | 64 | } |
duke@435 | 65 | |
duke@435 | 66 | void restore_locals() |
duke@435 | 67 | { |
duke@435 | 68 | movq(r14, Address(rbp, frame::interpreter_frame_locals_offset * wordSize)); |
duke@435 | 69 | } |
duke@435 | 70 | |
duke@435 | 71 | // Helpers for runtime call arguments/results |
duke@435 | 72 | void get_method(Register reg) |
duke@435 | 73 | { |
duke@435 | 74 | movq(reg, Address(rbp, frame::interpreter_frame_method_offset * wordSize)); |
duke@435 | 75 | } |
duke@435 | 76 | |
duke@435 | 77 | void get_constant_pool(Register reg) |
duke@435 | 78 | { |
duke@435 | 79 | get_method(reg); |
duke@435 | 80 | movq(reg, Address(reg, methodOopDesc::constants_offset())); |
duke@435 | 81 | } |
duke@435 | 82 | |
duke@435 | 83 | void get_constant_pool_cache(Register reg) |
duke@435 | 84 | { |
duke@435 | 85 | get_constant_pool(reg); |
duke@435 | 86 | movq(reg, Address(reg, constantPoolOopDesc::cache_offset_in_bytes())); |
duke@435 | 87 | } |
duke@435 | 88 | |
duke@435 | 89 | void get_cpool_and_tags(Register cpool, Register tags) |
duke@435 | 90 | { |
duke@435 | 91 | get_constant_pool(cpool); |
duke@435 | 92 | movq(tags, Address(cpool, constantPoolOopDesc::tags_offset_in_bytes())); |
duke@435 | 93 | } |
duke@435 | 94 | |
duke@435 | 95 | void get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset); |
duke@435 | 96 | void get_cache_and_index_at_bcp(Register cache, Register index, |
duke@435 | 97 | int bcp_offset); |
duke@435 | 98 | void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, |
duke@435 | 99 | int bcp_offset); |
duke@435 | 100 | |
duke@435 | 101 | void pop_ptr(Register r = rax); |
duke@435 | 102 | void pop_i(Register r = rax); |
duke@435 | 103 | void pop_l(Register r = rax); |
duke@435 | 104 | void pop_f(XMMRegister r = xmm0); |
duke@435 | 105 | void pop_d(XMMRegister r = xmm0); |
duke@435 | 106 | void push_ptr(Register r = rax); |
duke@435 | 107 | void push_i(Register r = rax); |
duke@435 | 108 | void push_l(Register r = rax); |
duke@435 | 109 | void push_f(XMMRegister r = xmm0); |
duke@435 | 110 | void push_d(XMMRegister r = xmm0); |
duke@435 | 111 | |
duke@435 | 112 | void pop(TosState state); // transition vtos -> state |
duke@435 | 113 | void push(TosState state); // transition state -> vtos |
duke@435 | 114 | |
duke@435 | 115 | // Tagged stack support, pop and push both tag and value. |
duke@435 | 116 | void pop_ptr(Register r, Register tag); |
duke@435 | 117 | void push_ptr(Register r, Register tag); |
duke@435 | 118 | |
duke@435 | 119 | DEBUG_ONLY(void verify_stack_tag(frame::Tag t);) |
duke@435 | 120 | |
duke@435 | 121 | // Tagged stack helpers for swap and dup |
duke@435 | 122 | void load_ptr_and_tag(int n, Register val, Register tag); |
duke@435 | 123 | void store_ptr_and_tag(int n, Register val, Register tag); |
duke@435 | 124 | |
duke@435 | 125 | // Tagged Local support |
duke@435 | 126 | void tag_local(frame::Tag tag, int n); |
duke@435 | 127 | void tag_local(Register tag, int n); |
duke@435 | 128 | void tag_local(frame::Tag tag, Register idx); |
duke@435 | 129 | void tag_local(Register tag, Register idx); |
duke@435 | 130 | |
duke@435 | 131 | #ifdef ASSERT |
duke@435 | 132 | void verify_local_tag(frame::Tag tag, int n); |
duke@435 | 133 | void verify_local_tag(frame::Tag tag, Register idx); |
duke@435 | 134 | #endif // ASSERT |
duke@435 | 135 | |
duke@435 | 136 | void empty_expression_stack() |
duke@435 | 137 | { |
duke@435 | 138 | movq(rsp, Address(rbp, frame::interpreter_frame_monitor_block_top_offset * |
duke@435 | 139 | wordSize)); |
duke@435 | 140 | // NULL last_sp until next java call |
duke@435 | 141 | movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD); |
duke@435 | 142 | } |
duke@435 | 143 | |
duke@435 | 144 | // Super call_VM calls - correspond to MacroAssembler::call_VM(_leaf) calls |
duke@435 | 145 | void super_call_VM_leaf(address entry_point); |
duke@435 | 146 | void super_call_VM_leaf(address entry_point, Register arg_1); |
duke@435 | 147 | void super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2); |
duke@435 | 148 | void super_call_VM_leaf(address entry_point, |
duke@435 | 149 | Register arg_1, Register arg_2, Register arg_3); |
duke@435 | 150 | |
duke@435 | 151 | // Generate a subtype check: branch to ok_is_subtype if sub_klass is |
duke@435 | 152 | // a subtype of super_klass. |
duke@435 | 153 | void gen_subtype_check( Register sub_klass, Label &ok_is_subtype ); |
duke@435 | 154 | |
duke@435 | 155 | // Dispatching |
duke@435 | 156 | void dispatch_prolog(TosState state, int step = 0); |
duke@435 | 157 | void dispatch_epilog(TosState state, int step = 0); |
duke@435 | 158 | // dispatch via ebx (assume ebx is loaded already) |
duke@435 | 159 | void dispatch_only(TosState state); |
duke@435 | 160 | // dispatch normal table via ebx (assume ebx is loaded already) |
duke@435 | 161 | void dispatch_only_normal(TosState state); |
duke@435 | 162 | void dispatch_only_noverify(TosState state); |
duke@435 | 163 | // load ebx from [esi + step] and dispatch via ebx |
duke@435 | 164 | void dispatch_next(TosState state, int step = 0); |
duke@435 | 165 | // load ebx from [esi] and dispatch via ebx and table |
duke@435 | 166 | void dispatch_via (TosState state, address* table); |
duke@435 | 167 | |
duke@435 | 168 | // jump to an invoked target |
duke@435 | 169 | void jump_from_interpreted(Register method, Register temp); |
duke@435 | 170 | |
duke@435 | 171 | |
duke@435 | 172 | // Returning from interpreted functions |
duke@435 | 173 | // |
duke@435 | 174 | // Removes the current activation (incl. unlocking of monitors) |
duke@435 | 175 | // and sets up the return address. This code is also used for |
duke@435 | 176 | // exception unwindwing. In that case, we do not want to throw |
duke@435 | 177 | // IllegalMonitorStateExceptions, since that might get us into an |
duke@435 | 178 | // infinite rethrow exception loop. |
duke@435 | 179 | // Additionally this code is used for popFrame and earlyReturn. |
duke@435 | 180 | // In popFrame case we want to skip throwing an exception, |
duke@435 | 181 | // installing an exception, and notifying jvmdi. |
duke@435 | 182 | // In earlyReturn case we only want to skip throwing an exception |
duke@435 | 183 | // and installing an exception. |
duke@435 | 184 | void remove_activation(TosState state, Register ret_addr, |
duke@435 | 185 | bool throw_monitor_exception = true, |
duke@435 | 186 | bool install_monitor_exception = true, |
duke@435 | 187 | bool notify_jvmdi = true); |
duke@435 | 188 | |
duke@435 | 189 | // Object locking |
duke@435 | 190 | void lock_object (Register lock_reg); |
duke@435 | 191 | void unlock_object(Register lock_reg); |
duke@435 | 192 | |
duke@435 | 193 | // Interpreter profiling operations |
duke@435 | 194 | void set_method_data_pointer_for_bcp(); |
duke@435 | 195 | void test_method_data_pointer(Register mdp, Label& zero_continue); |
duke@435 | 196 | void verify_method_data_pointer(); |
duke@435 | 197 | |
duke@435 | 198 | void set_mdp_data_at(Register mdp_in, int constant, Register value); |
duke@435 | 199 | void increment_mdp_data_at(Address data, bool decrement = false); |
duke@435 | 200 | void increment_mdp_data_at(Register mdp_in, int constant, |
duke@435 | 201 | bool decrement = false); |
duke@435 | 202 | void increment_mdp_data_at(Register mdp_in, Register reg, int constant, |
duke@435 | 203 | bool decrement = false); |
duke@435 | 204 | void set_mdp_flag_at(Register mdp_in, int flag_constant); |
duke@435 | 205 | void test_mdp_data_at(Register mdp_in, int offset, Register value, |
duke@435 | 206 | Register test_value_out, |
duke@435 | 207 | Label& not_equal_continue); |
duke@435 | 208 | |
duke@435 | 209 | void record_klass_in_profile(Register receiver, Register mdp, |
duke@435 | 210 | Register reg2); |
duke@435 | 211 | void record_klass_in_profile_helper(Register receiver, Register mdp, |
duke@435 | 212 | Register reg2, |
duke@435 | 213 | int start_row, Label& done); |
duke@435 | 214 | |
duke@435 | 215 | void update_mdp_by_offset(Register mdp_in, int offset_of_offset); |
duke@435 | 216 | void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp); |
duke@435 | 217 | void update_mdp_by_constant(Register mdp_in, int constant); |
duke@435 | 218 | void update_mdp_for_ret(Register return_bci); |
duke@435 | 219 | |
duke@435 | 220 | void profile_taken_branch(Register mdp, Register bumped_count); |
duke@435 | 221 | void profile_not_taken_branch(Register mdp); |
duke@435 | 222 | void profile_call(Register mdp); |
duke@435 | 223 | void profile_final_call(Register mdp); |
duke@435 | 224 | void profile_virtual_call(Register receiver, Register mdp, |
duke@435 | 225 | Register scratch2); |
duke@435 | 226 | void profile_ret(Register return_bci, Register mdp); |
duke@435 | 227 | void profile_null_seen(Register mdp); |
duke@435 | 228 | void profile_typecheck(Register mdp, Register klass, Register scratch); |
duke@435 | 229 | void profile_typecheck_failed(Register mdp); |
duke@435 | 230 | void profile_switch_default(Register mdp); |
duke@435 | 231 | void profile_switch_case(Register index_in_scratch, Register mdp, |
duke@435 | 232 | Register scratch2); |
duke@435 | 233 | |
duke@435 | 234 | // Debugging |
duke@435 | 235 | // only if +VerifyOops && state == atos |
duke@435 | 236 | void verify_oop(Register reg, TosState state = atos); |
duke@435 | 237 | // only if +VerifyFPU && (state == ftos || state == dtos) |
duke@435 | 238 | void verify_FPU(int stack_depth, TosState state = ftos); |
duke@435 | 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 | }; |