Mercurial > hg > truffle
diff src/cpu/x86/vm/interp_masm_x86_32.hpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
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children | dc7f315e41f7 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/cpu/x86/vm/interp_masm_x86_32.hpp Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,235 @@ +/* + * Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + */ + +// This file specializes the assember with interpreter-specific macros + + +class InterpreterMacroAssembler: public MacroAssembler { +#ifndef CC_INTERP + protected: + // Interpreter specific version of call_VM_base + virtual void call_VM_leaf_base( + address entry_point, + int number_of_arguments + ); + + virtual void call_VM_base( + Register oop_result, + Register java_thread, + Register last_java_sp, + address entry_point, + int number_of_arguments, + bool check_exceptions + ); + + virtual void check_and_handle_popframe(Register java_thread); + virtual void check_and_handle_earlyret(Register java_thread); + + // base routine for all dispatches + void dispatch_base(TosState state, address* table, bool verifyoop = true); +#endif /* CC_INTERP */ + + public: + InterpreterMacroAssembler(CodeBuffer* code) : MacroAssembler(code) {} + + void load_earlyret_value(TosState state); + + // Interpreter-specific registers +#ifdef CC_INTERP + void save_bcp() { /* not needed in c++ interpreter and harmless */ } + void restore_bcp() { /* not needed in c++ interpreter and harmless */ } + + // Helpers for runtime call arguments/results + void get_method(Register reg); + +#else + + void save_bcp() { movl(Address(rbp, frame::interpreter_frame_bcx_offset * wordSize), rsi); } + void restore_bcp() { movl(rsi, Address(rbp, frame::interpreter_frame_bcx_offset * wordSize)); } + void restore_locals() { movl(rdi, Address(rbp, frame::interpreter_frame_locals_offset * wordSize)); } + + // Helpers for runtime call arguments/results + void get_method(Register reg) { movl(reg, Address(rbp, frame::interpreter_frame_method_offset * wordSize)); } + void get_constant_pool(Register reg) { get_method(reg); movl(reg, Address(reg, methodOopDesc::constants_offset())); } + void get_constant_pool_cache(Register reg) { get_constant_pool(reg); movl(reg, Address(reg, constantPoolOopDesc::cache_offset_in_bytes())); } + void get_cpool_and_tags(Register cpool, Register tags) { get_constant_pool(cpool); movl(tags, Address(cpool, constantPoolOopDesc::tags_offset_in_bytes())); + } + void get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset); + void get_cache_and_index_at_bcp(Register cache, Register index, int bcp_offset); + void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset); + + // Expression stack + void f2ieee(); // truncate ftos to 32bits + void d2ieee(); // truncate dtos to 64bits +#endif // CC_INTERP + + + void pop_ptr(Register r = rax); + void pop_ptr(Register r, Register tag); + void pop_i(Register r = rax); + void pop_l(Register lo = rax, Register hi = rdx); + void pop_f(); + void pop_d(); + void pop_ftos_to_rsp(); + void pop_dtos_to_rsp(); + + void push_ptr(Register r = rax); + void push_ptr(Register r, Register tag); + void push_i(Register r = rax); + void push_l(Register lo = rax, Register hi = rdx); + void push_d(Register r = rax); + void push_f(); + + void pop(TosState state); // transition vtos -> state + void push(TosState state); // transition state -> vtos + + DEBUG_ONLY(void verify_stack_tag(frame::Tag t);) + +#ifndef CC_INTERP + + void empty_expression_stack() { + movl(rsp, Address(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize)); + // NULL last_sp until next java call + movl(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD); + } + + // Tagged stack helpers for swap and dup + void load_ptr_and_tag(int n, Register val, Register tag); + void store_ptr_and_tag(int n, Register val, Register tag); + + // Tagged Local support + + void tag_local(frame::Tag tag, int n); + void tag_local(Register tag, int n); + void tag_local(frame::Tag tag, Register idx); + void tag_local(Register tag, Register idx); + +#ifdef ASSERT + void verify_local_tag(frame::Tag tag, int n); + void verify_local_tag(frame::Tag tag, Register idx); +#endif // ASSERT + + // Super call_VM calls - correspond to MacroAssembler::call_VM(_leaf) calls + void super_call_VM_leaf(address entry_point); + void super_call_VM_leaf(address entry_point, Register arg_1); + void super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2); + void super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2, Register arg_3); + + // Generate a subtype check: branch to ok_is_subtype if sub_klass is + // a subtype of super_klass. EAX holds the super_klass. Blows ECX + // and EDI. Register sub_klass cannot be any of the above. + void gen_subtype_check( Register sub_klass, Label &ok_is_subtype ); + + // Dispatching + void dispatch_prolog(TosState state, int step = 0); + void dispatch_epilog(TosState state, int step = 0); + void dispatch_only(TosState state); // dispatch via rbx, (assume rbx, is loaded already) + void dispatch_only_normal(TosState state); // dispatch normal table via rbx, (assume rbx, is loaded already) + void dispatch_only_noverify(TosState state); + void dispatch_next(TosState state, int step = 0); // load rbx, from [esi + step] and dispatch via rbx, + void dispatch_via (TosState state, address* table); // load rbx, from [esi] and dispatch via rbx, and table + + + // jump to an invoked target + void jump_from_interpreted(Register method, Register temp); + + // Returning from interpreted functions + // + // Removes the current activation (incl. unlocking of monitors) + // and sets up the return address. This code is also used for + // exception unwindwing. In that case, we do not want to throw + // IllegalMonitorStateExceptions, since that might get us into an + // infinite rethrow exception loop. + // Additionally this code is used for popFrame and earlyReturn. + // In popFrame case we want to skip throwing an exception, + // installing an exception, and notifying jvmdi. + // In earlyReturn case we only want to skip throwing an exception + // and installing an exception. + void remove_activation(TosState state, Register ret_addr, + bool throw_monitor_exception = true, + bool install_monitor_exception = true, + bool notify_jvmdi = true); +#endif /* !CC_INTERP */ + + // Debugging + void verify_oop(Register reg, TosState state = atos); // only if +VerifyOops && state == atos +#ifndef CC_INTERP + void verify_FPU(int stack_depth, TosState state = ftos); // only if +VerifyFPU && (state == ftos || state == dtos) + +#endif /* !CC_INTERP */ + + // Object locking + void lock_object (Register lock_reg); + void unlock_object(Register lock_reg); + +#ifndef CC_INTERP + + // Interpreter profiling operations + void set_method_data_pointer_for_bcp(); + void test_method_data_pointer(Register mdp, Label& zero_continue); + void verify_method_data_pointer(); + + void set_mdp_data_at(Register mdp_in, int constant, Register value); + void increment_mdp_data_at(Address data, bool decrement = false); + void increment_mdp_data_at(Register mdp_in, int constant, + bool decrement = false); + void increment_mdp_data_at(Register mdp_in, Register reg, int constant, + bool decrement = false); + void set_mdp_flag_at(Register mdp_in, int flag_constant); + void test_mdp_data_at(Register mdp_in, int offset, Register value, + Register test_value_out, + Label& not_equal_continue); + + void record_klass_in_profile(Register receiver, Register mdp, + Register reg2); + void record_klass_in_profile_helper(Register receiver, Register mdp, + Register reg2, + int start_row, Label& done); + + void update_mdp_by_offset(Register mdp_in, int offset_of_offset); + void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp); + void update_mdp_by_constant(Register mdp_in, int constant); + void update_mdp_for_ret(Register return_bci); + + void profile_taken_branch(Register mdp, Register bumped_count); + void profile_not_taken_branch(Register mdp); + void profile_call(Register mdp); + void profile_final_call(Register mdp); + void profile_virtual_call(Register receiver, Register mdp, Register scratch2); + void profile_ret(Register return_bci, Register mdp); + void profile_null_seen(Register mdp); + void profile_typecheck(Register mdp, Register klass, Register scratch); + void profile_typecheck_failed(Register mdp); + void profile_switch_default(Register mdp); + void profile_switch_case(Register index_in_scratch, Register mdp, Register scratch2); + +#endif /* !CC_INTERP */ + + typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode; + + // support for jvmti + void notify_method_entry(); + void notify_method_exit(TosState state, NotifyMethodExitMode mode); + +};