1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/cpu/sparc/vm/interp_masm_sparc.hpp Sat Dec 01 00:00:00 2007 +0000
1.3 @@ -0,0 +1,332 @@
1.4 +/*
1.5 + * Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
1.23 + * CA 95054 USA or visit www.sun.com if you need additional information or
1.24 + * have any questions.
1.25 + *
1.26 + */
1.27 +
1.28 +// This file specializes the assember with interpreter-specific macros
1.29 +
1.30 +REGISTER_DECLARATION( Register, Otos_i , O0); // tos for ints, etc
1.31 +REGISTER_DECLARATION( Register, Otos_l , O0); // for longs
1.32 +REGISTER_DECLARATION( Register, Otos_l1, O0); // for 1st part of longs
1.33 +REGISTER_DECLARATION( Register, Otos_l2, O1); // for 2nd part of longs
1.34 +REGISTER_DECLARATION(FloatRegister, Ftos_f , F0); // for floats
1.35 +REGISTER_DECLARATION(FloatRegister, Ftos_d , F0); // for doubles
1.36 +REGISTER_DECLARATION(FloatRegister, Ftos_d1, F0); // for 1st part of double
1.37 +REGISTER_DECLARATION(FloatRegister, Ftos_d2, F1); // for 2nd part of double
1.38 +
1.39 +#ifndef DONT_USE_REGISTER_DEFINES
1.40 +#define Otos_i O0
1.41 +#define Otos_l O0
1.42 +#define Otos_l1 O0
1.43 +#define Otos_l2 O1
1.44 +#define Ftos_f F0
1.45 +#define Ftos_d F0
1.46 +#define Ftos_d1 F0
1.47 +#define Ftos_d2 F1
1.48 +#endif // DONT_USE_REGISTER_DEFINES
1.49 +
1.50 +class InterpreterMacroAssembler: public MacroAssembler {
1.51 + protected:
1.52 +#ifndef CC_INTERP
1.53 + // Interpreter specific version of call_VM_base
1.54 + virtual void call_VM_leaf_base(
1.55 + Register java_thread,
1.56 + address entry_point,
1.57 + int number_of_arguments
1.58 + );
1.59 +
1.60 + virtual void call_VM_base(
1.61 + Register oop_result,
1.62 + Register java_thread,
1.63 + Register last_java_sp,
1.64 + address entry_point,
1.65 + int number_of_arguments,
1.66 + bool check_exception=true
1.67 + );
1.68 +
1.69 + virtual void check_and_handle_popframe(Register java_thread);
1.70 + virtual void check_and_handle_earlyret(Register java_thread);
1.71 +
1.72 + // base routine for all dispatches
1.73 + void dispatch_base(TosState state, address* table);
1.74 +#endif /* CC_INTERP */
1.75 +
1.76 + public:
1.77 + InterpreterMacroAssembler(CodeBuffer* c)
1.78 + : MacroAssembler(c) {}
1.79 +
1.80 +#ifndef CC_INTERP
1.81 + virtual void load_earlyret_value(TosState state);
1.82 +
1.83 + static const Address l_tmp ;
1.84 + static const Address d_tmp ;
1.85 +#endif /* CC_INTERP */
1.86 +
1.87 + // helper routine for frame allocation/deallocation
1.88 + // compute the delta by which the caller's SP has to
1.89 + // be adjusted to accomodate for the non-argument
1.90 + // locals
1.91 + void compute_extra_locals_size_in_bytes(Register args_size, Register locals_size, Register delta);
1.92 +
1.93 +#ifndef CC_INTERP
1.94 +
1.95 + // dispatch routines
1.96 + void dispatch_prolog(TosState state, int step = 0);
1.97 + void dispatch_epilog(TosState state, int step = 0);
1.98 + void dispatch_only(TosState state);
1.99 + void dispatch_normal(TosState state);
1.100 + void dispatch_next(TosState state, int step = 0);
1.101 + void dispatch_next_noverify_oop(TosState state, int step = 0);
1.102 + void dispatch_via (TosState state, address* table);
1.103 +
1.104 +
1.105 + // Removes the current activation (incl. unlocking of monitors).
1.106 + // Additionally this code is used for earlyReturn in which case we
1.107 + // want to skip throwing an exception and installing an exception.
1.108 + void remove_activation(TosState state,
1.109 + bool throw_monitor_exception = true,
1.110 + bool install_monitor_exception = true);
1.111 +
1.112 + protected:
1.113 + void dispatch_Lbyte_code(TosState state, address* table, int bcp_incr = 0, bool verify = true);
1.114 +#endif /* CC_INTERP */
1.115 +
1.116 + public:
1.117 + // Super call_VM calls - correspond to MacroAssembler::call_VM(_leaf) calls
1.118 + void super_call_VM(Register thread_cache,
1.119 + Register oop_result,
1.120 + Register last_java_sp,
1.121 + address entry_point,
1.122 + Register arg_1,
1.123 + Register arg_2,
1.124 + bool check_exception = true);
1.125 +
1.126 +#ifndef CC_INTERP
1.127 + void super_call_VM_leaf(Register thread_cache, address entry_point, Register arg_1);
1.128 +
1.129 + // Generate a subtype check: branch to ok_is_subtype if sub_klass is
1.130 + // a subtype of super_klass. Blows registers tmp1, tmp2 and tmp3.
1.131 + void gen_subtype_check( Register sub_klass, Register super_klass, Register tmp1, Register tmp2, Register tmp3, Label &ok_is_subtype );
1.132 +
1.133 + // helpers for tossing exceptions
1.134 + void throw_if_not_1_icc( Condition ok_condition, Label& ok );
1.135 + void throw_if_not_1_xcc( Condition ok_condition, Label& ok );
1.136 + void throw_if_not_1_x ( Condition ok_condition, Label& ok ); // chooses icc or xcc based on _LP64
1.137 +
1.138 + void throw_if_not_2( address throw_entry_point, Register Rscratch, Label& ok);
1.139 +
1.140 + void throw_if_not_icc( Condition ok_condition, address throw_entry_point, Register Rscratch );
1.141 + void throw_if_not_xcc( Condition ok_condition, address throw_entry_point, Register Rscratch );
1.142 + void throw_if_not_x ( Condition ok_condition, address throw_entry_point, Register Rscratch );
1.143 +
1.144 + // helpers for expression stack
1.145 +
1.146 + void pop_i( Register r = Otos_i);
1.147 + void pop_ptr( Register r = Otos_i, Register scratch = O4);
1.148 + void pop_l( Register r = Otos_l1);
1.149 + // G4_scratch and Lscratch are used at call sites!!
1.150 + void pop_f(FloatRegister f = Ftos_f, Register scratch = G1_scratch);
1.151 + void pop_d(FloatRegister f = Ftos_d1, Register scratch = G1_scratch);
1.152 +
1.153 + void push_i( Register r = Otos_i);
1.154 + void push_ptr( Register r = Otos_i);
1.155 + void push_ptr( Register r, Register tag);
1.156 + void push_l( Register r = Otos_l1);
1.157 + void push_f(FloatRegister f = Ftos_f);
1.158 + void push_d(FloatRegister f = Ftos_d1);
1.159 +
1.160 +
1.161 + void pop (TosState state); // transition vtos -> state
1.162 + void push(TosState state); // transition state -> vtos
1.163 + void empty_expression_stack(); // resets both Lesp and SP
1.164 +
1.165 + // Support for Tagged Stacks
1.166 + void tag_stack(frame::Tag t, Register r);
1.167 + void tag_stack(Register tag);
1.168 + void tag_local(frame::Tag t, Register src, Register base, int n = 0);
1.169 +
1.170 +#ifdef ASSERT
1.171 + void verify_sp(Register Rsp, Register Rtemp);
1.172 + void verify_esp(Register Resp); // verify that Lesp points to a word in the temp stack
1.173 +
1.174 + void verify_stack_tag(frame::Tag t, Register r, Register scratch = G0);
1.175 + void verify_local_tag(frame::Tag t, Register base, Register scr, int n = 0);
1.176 +#endif // ASSERT
1.177 +
1.178 + public:
1.179 + void if_cmp(Condition cc, bool ptr_compare);
1.180 +
1.181 + // Load values from bytecode stream:
1.182 +
1.183 + enum signedOrNot { Signed, Unsigned };
1.184 + enum setCCOrNot { set_CC, dont_set_CC };
1.185 +
1.186 + void get_2_byte_integer_at_bcp( int bcp_offset,
1.187 + Register Rtmp,
1.188 + Register Rdst,
1.189 + signedOrNot is_signed,
1.190 + setCCOrNot should_set_CC = dont_set_CC );
1.191 +
1.192 + void get_4_byte_integer_at_bcp( int bcp_offset,
1.193 + Register Rtmp,
1.194 + Register Rdst,
1.195 + setCCOrNot should_set_CC = dont_set_CC );
1.196 +
1.197 + void get_cache_and_index_at_bcp(Register cache, Register tmp, int bcp_offset);
1.198 + void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset);
1.199 +
1.200 +
1.201 + // common code
1.202 +
1.203 + void field_offset_at(int n, Register tmp, Register dest, Register base);
1.204 + int field_offset_at(Register object, address bcp, int offset);
1.205 + void fast_iaaccess(int n, address bcp);
1.206 + void fast_iagetfield(address bcp);
1.207 + void fast_iaputfield(address bcp, bool do_store_check );
1.208 +
1.209 + void index_check(Register array, Register index, int index_shift, Register tmp, Register res);
1.210 + void index_check_without_pop(Register array, Register index, int index_shift, Register tmp, Register res);
1.211 +
1.212 + void get_constant_pool(Register Rdst);
1.213 + void get_constant_pool_cache(Register Rdst);
1.214 + void get_cpool_and_tags(Register Rcpool, Register Rtags);
1.215 + void is_a(Label& L);
1.216 +
1.217 + // Load compiled (i2c) or interpreter entry and call from interpreted
1.218 + void call_from_interpreter(Register target, Register scratch, Register Rret);
1.219 +
1.220 + // --------------------------------------------------
1.221 +
1.222 + void unlock_if_synchronized_method(TosState state, bool throw_monitor_exception = true, bool install_monitor_exception = true);
1.223 +
1.224 + void add_monitor_to_stack( bool stack_is_empty,
1.225 + Register Rtemp,
1.226 + Register Rtemp2 );
1.227 +
1.228 + // Load/store aligned in _LP64 but unaligned otherwise
1.229 + // These only apply to the Interpreter expression stack and locals!
1.230 + void load_unaligned_double(Register r1, int offset, FloatRegister d);
1.231 + void store_unaligned_double(FloatRegister d, Register r1, int offset );
1.232 +
1.233 + // Load/store aligned in _LP64 but unaligned otherwise
1.234 + void load_unaligned_long(Register r1, int offset, Register d);
1.235 + void store_unaligned_long(Register d, Register r1, int offset );
1.236 +
1.237 + void access_local_int( Register index, Register dst );
1.238 + void access_local_ptr( Register index, Register dst );
1.239 + void access_local_returnAddress( Register index, Register dst );
1.240 + void access_local_long( Register index, Register dst );
1.241 + void access_local_float( Register index, FloatRegister dst );
1.242 + void access_local_double( Register index, FloatRegister dst );
1.243 +#ifdef ASSERT
1.244 + void check_for_regarea_stomp( Register Rindex, int offset, Register Rlimit, Register Rscratch, Register Rscratch1);
1.245 +#endif // ASSERT
1.246 + void store_local_int( Register index, Register src );
1.247 + void store_local_ptr( Register index, Register src, Register tag = Otos_l2 );
1.248 + void store_local_ptr( int n, Register src, Register tag = Otos_l2 );
1.249 + void store_local_long( Register index, Register src );
1.250 + void store_local_float( Register index, FloatRegister src );
1.251 + void store_local_double( Register index, FloatRegister src );
1.252 +
1.253 + // Tagged stack helpers for swap and dup
1.254 + void load_ptr_and_tag(int n, Register val, Register tag);
1.255 + void store_ptr_and_tag(int n, Register val, Register tag);
1.256 +
1.257 + // Tagged stack helper for getting receiver in register.
1.258 + void load_receiver(Register param_count, Register recv);
1.259 +
1.260 + static int top_most_monitor_byte_offset(); // offset in bytes to top of monitor block
1.261 + Address top_most_monitor();
1.262 + void compute_stack_base( Register Rdest );
1.263 +
1.264 +#endif /* CC_INTERP */
1.265 + void increment_invocation_counter( Register Rtmp, Register Rtmp2 );
1.266 + void increment_backedge_counter( Register Rtmp, Register Rtmp2 );
1.267 +#ifndef CC_INTERP
1.268 + void test_backedge_count_for_osr( Register backedge_count, Register branch_bcp, Register Rtmp );
1.269 +
1.270 +#endif /* CC_INTERP */
1.271 + // Object locking
1.272 + void lock_object (Register lock_reg, Register obj_reg);
1.273 + void unlock_object(Register lock_reg);
1.274 +
1.275 +#ifndef CC_INTERP
1.276 + // Interpreter profiling operations
1.277 + void set_method_data_pointer() { set_method_data_pointer_offset(noreg); }
1.278 + void set_method_data_pointer_for_bcp();
1.279 + void set_method_data_pointer_offset(Register mdi_reg);
1.280 + void test_method_data_pointer(Label& zero_continue);
1.281 + void verify_method_data_pointer();
1.282 + void test_invocation_counter_for_mdp(Register invocation_count, Register cur_bcp, Register Rtmp, Label &profile_continue);
1.283 +
1.284 + void set_mdp_data_at(int constant, Register value);
1.285 + void increment_mdp_data_at(Address counter, Register bumped_count,
1.286 + bool decrement = false);
1.287 + void increment_mdp_data_at(int constant, Register bumped_count,
1.288 + bool decrement = false);
1.289 + void increment_mdp_data_at(Register reg, int constant,
1.290 + Register bumped_count, Register scratch2,
1.291 + bool decrement = false);
1.292 + void set_mdp_flag_at(int flag_constant, Register scratch);
1.293 + void test_mdp_data_at(int offset, Register value, Label& not_equal_continue,
1.294 + Register scratch);
1.295 +
1.296 + void record_klass_in_profile(Register receiver, Register scratch);
1.297 + void record_klass_in_profile_helper(Register receiver, Register scratch,
1.298 + int start_row, Label& done);
1.299 +
1.300 + void update_mdp_by_offset(int offset_of_disp, Register scratch);
1.301 + void update_mdp_by_offset(Register reg, int offset_of_disp,
1.302 + Register scratch);
1.303 + void update_mdp_by_constant(int constant);
1.304 + void update_mdp_for_ret(TosState state, Register return_bci);
1.305 +
1.306 + void profile_taken_branch(Register scratch, Register bumped_count);
1.307 + void profile_not_taken_branch(Register scratch);
1.308 + void profile_call(Register scratch);
1.309 + void profile_final_call(Register scratch);
1.310 + void profile_virtual_call(Register receiver, Register scratch);
1.311 + void profile_ret(TosState state, Register return_bci, Register scratch);
1.312 + void profile_null_seen(Register scratch);
1.313 + void profile_typecheck(Register klass, Register scratch);
1.314 + void profile_typecheck_failed(Register scratch);
1.315 + void profile_switch_default(Register scratch);
1.316 + void profile_switch_case(Register index,
1.317 + Register scratch1,
1.318 + Register scratch2,
1.319 + Register scratch3);
1.320 +
1.321 + // Debugging
1.322 + void interp_verify_oop(Register reg, TosState state, const char * file, int line); // only if +VerifyOops && state == atos
1.323 + void verify_oop_or_return_address(Register reg, Register rtmp); // for astore
1.324 + void verify_FPU(int stack_depth, TosState state = ftos); // only if +VerifyFPU && (state == ftos || state == dtos)
1.325 +
1.326 +#endif /* CC_INTERP */
1.327 + // support for JVMTI/Dtrace
1.328 + typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode;
1.329 + void notify_method_entry();
1.330 + void notify_method_exit(
1.331 + bool save_result, TosState state, NotifyMethodExitMode mode);
1.332 +
1.333 + void save_return_value(TosState state, bool is_native_call);
1.334 + void restore_return_value(TosState state, bool is_native_call);
1.335 +};
