/* * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2016 SAP SE. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef CPU_S390_VM_INTERP_MASM_ZARCH_64_64_HPP #define CPU_S390_VM_INTERP_MASM_ZARCH_64_64_HPP #include "asm/macroAssembler.hpp" #include "interpreter/invocationCounter.hpp" // This file specializes the assember with interpreter-specific macros. class InterpreterMacroAssembler: public MacroAssembler { protected: // Interpreter specific version of call_VM_base(). virtual void call_VM_leaf_base(address entry_point); virtual void call_VM_leaf_base(address entry_point, bool allow_relocation); virtual void call_VM_base(Register oop_result, Register last_java_sp, address entry_point, bool check_exceptions); virtual void call_VM_base(Register oop_result, Register last_java_sp, address entry_point, bool allow_relocation, 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); public: InterpreterMacroAssembler(CodeBuffer* c) : MacroAssembler(c) {} void jump_to_entry(address entry, Register Rscratch); virtual void load_earlyret_value(TosState state); static const Address l_tmp; static const Address d_tmp; // Handy address generation macros. #define thread_(field_name) Address(Z_thread, JavaThread::field_name ## _offset()) #define method_(field_name) Address(Z_method, Method::field_name ## _offset()) #define method2_(Rmethod, field_name) Address(Rmethod, Method::field_name ## _offset()) // Helper routine for frame allocation/deallocation. // Compute the delta by which the caller's SP has to // be adjusted to accomodate for the non-argument locals. void compute_extra_locals_size_in_bytes(Register args_size, Register locals_size, Register delta); // dispatch routines void dispatch_prolog(TosState state, int step = 0); void dispatch_epilog(TosState state, int step = 0); void dispatch_only(TosState state); // Dispatch normal table via Z_bytecode (assume Z_bytecode is loaded already). void dispatch_only_normal(TosState state); void dispatch_normal(TosState state); void dispatch_next(TosState state, int step = 0); void dispatch_next_noverify_oop(TosState state, int step = 0); void dispatch_via(TosState state, address* table); // Jump to an invoked target. void prepare_to_jump_from_interpreted(Register method); void jump_from_interpreted(Register method, Register temp); // Removes the current activation (incl. unlocking of monitors). // Additionally this code is used for earlyReturn in which case we // want to skip throwing an exception and installing an exception. void remove_activation(TosState state, Register return_pc, bool throw_monitor_exception = true, bool install_monitor_exception = true, bool notify_jvmti = true); public: // Super call_VM calls - correspond to MacroAssembler::call_VM(_leaf) calls. void super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2); void super_call_VM(Register thread_cache, Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2, bool check_exception = true); // Generate a subtype check: branch to ok_is_subtype if sub_klass is // a subtype of super_klass. Blows registers tmp1, tmp2 and tmp3. void gen_subtype_check(Register sub_klass, Register super_klass, Register tmp1, Register tmp2, Label &ok_is_subtype); void get_cache_and_index_at_bcp(Register cache, Register cpe_offset, int bcp_offset, size_t index_size = sizeof(u2)); void get_cache_and_index_and_bytecode_at_bcp(Register cache, Register cpe_offset, Register bytecode, int byte_no, int bcp_offset, size_t index_size = sizeof(u2)); void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset, size_t index_size = sizeof(u2)); void get_cache_index_at_bcp(Register index, int bcp_offset, size_t index_size = sizeof(u2)); void load_resolved_reference_at_index(Register result, Register index); // Pop topmost element from stack. It just disappears. Useful if // consumed previously by access via stackTop(). void popx(int len); void pop_i() { popx(1); } void pop_ptr() { popx(1); } void pop_l() { popx(2); } void pop_f() { popx(1); } void pop_d() { popx(2); } // Get Address object of stack top. No checks. No pop. // Purpose: provide address of stack operand to exploit reg-mem operations. // Avoid RISC-like mem2reg - reg-reg-op sequence. Address stackTop(); // Helpers for expression stack. void pop_i( Register r); void pop_ptr( Register r); void pop_l( Register r); void pop_f(FloatRegister f); void pop_d(FloatRegister f); void push_i( Register r = Z_tos); void push_ptr( Register r = Z_tos); void push_l( Register r = Z_tos); void push_f(FloatRegister f = Z_ftos); void push_d(FloatRegister f = Z_ftos); // Helpers for swap and dup. void load_ptr(int n, Register val); void store_ptr(int n, Register val); void pop (TosState state); // transition vtos -> state void push(TosState state); // transition state -> vtos void empty_expression_stack(void); #ifdef ASSERT void verify_sp(Register Rsp, Register Rtemp); void verify_esp(Register Resp, Register Rtemp); // Verify that Resp points to a word in the operand stack. #endif // ASSERT public: void if_cmp(Condition cc, bool ptr_compare); // Accessors to the template interpreter state. void asm_assert_ijava_state_magic(Register tmp) PRODUCT_RETURN; void save_bcp(); void restore_bcp(); void save_esp(); void restore_esp(); void get_monitors(Register reg); void save_monitors(Register reg); void get_mdp(Register mdp); void save_mdp(Register mdp); // Values that are only read (besides initialization). void restore_locals(); void get_method(Register reg); // Load values from bytecode stream: enum signedOrNot { Signed, Unsigned }; enum setCCOrNot { set_CC, dont_set_CC }; void get_2_byte_integer_at_bcp(Register Rdst, int bcp_offset, signedOrNot is_signed ); void get_4_byte_integer_at_bcp(Register Rdst, int bcp_offset, setCCOrNot should_set_CC = dont_set_CC); // common code void field_offset_at(int n, Register tmp, Register dest, Register base); int field_offset_at(Register object, address bcp, int offset); void fast_iaaccess(int n, address bcp); void fast_iaputfield(address bcp, bool do_store_check); void index_check(Register array, Register index, int index_shift, Register tmp, Register res); void index_check_without_pop(Register array, Register index, int index_shift, Register tmp, Register res); void get_constant_pool(Register Rdst); void get_constant_pool_cache(Register Rdst); void get_cpool_and_tags(Register Rcpool, Register Rtags); void is_a(Label& L); // -------------------------------------------------- void unlock_if_synchronized_method(TosState state, bool throw_monitor_exception = true, bool install_monitor_exception = true); void add_monitor_to_stack(bool stack_is_empty, Register Rtemp, Register Rtemp2, Register Rtemp3); void access_local_int(Register index, Register dst); void access_local_ptr(Register index, Register dst); void access_local_long(Register index, Register dst); void access_local_float(Register index, FloatRegister dst); void access_local_double(Register index, FloatRegister dst); #ifdef ASSERT void check_for_regarea_stomp(Register Rindex, int offset, Register Rlimit, Register Rscratch, Register Rscratch1); #endif // ASSERT void store_local_int(Register index, Register src); void store_local_ptr(Register index, Register src); void store_local_long(Register index, Register src); void store_local_float(Register index, FloatRegister src); void store_local_double(Register index, FloatRegister src); Address first_local_in_stack(); static int top_most_monitor_byte_offset(); // Offset in bytes to top of monitor block. Address top_most_monitor(); void compute_stack_base(Register Rdest); enum LoadOrStore { load, store }; void static_iload_or_store(int which_local, LoadOrStore direction, Register Rtmp); void static_aload_or_store(int which_local, LoadOrStore direction, Register Rtmp); void static_dload_or_store(int which_local, LoadOrStore direction); void static_iinc( int which_local, jint increment, Register Rtmp, Register Rtmp2); void get_method_counters(Register Rmethod, Register Rcounters, Label& skip); void increment_invocation_counter(Register Rcounters, Register RctrSum); void increment_backedge_counter(Register Rcounters, Register RctrSum); void test_backedge_count_for_osr(Register backedge_count, Register branch_bcp, Register Rtmp); void record_static_call_in_profile(Register Rentry, Register Rtmp); void record_receiver_call_in_profile(Register Rklass, Register Rentry, Register Rtmp); // Object locking void lock_object (Register lock_reg, Register obj_reg); void unlock_object(Register lock_reg, Register obj_reg=noreg); // 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(Register mdp_in, int constant, Register tmp = Z_R1_scratch, bool decrement = false); void increment_mask_and_jump(Address counter_addr, int increment, Address mask, Register scratch, bool preloaded, branch_condition cond, Label* where); 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, bool is_virtual_call); void record_klass_in_profile_helper(Register receiver, Register mdp, Register reg2, int start_row, Label& done, bool is_virtual_call); void update_mdp_by_offset(Register mdp_in, int offset_of_offset); void update_mdp_by_offset(Register mdp_in, Register dataidx, 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, bool receiver_can_be_null = false); 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, Register tmp); void profile_switch_default(Register mdp); void profile_switch_case(Register index_in_scratch, Register mdp, Register scratch1, Register scratch2); void profile_obj_type(Register obj, Address mdo_addr, Register klass, bool cmp_done = false); void profile_arguments_type(Register mdp, Register callee, Register tmp, bool is_virtual); void profile_return_type(Register mdp, Register ret, Register tmp); void profile_parameters_type(Register mdp, Register tmp1, Register tmp2); // Debugging void verify_oop(Register reg, TosState state = atos); // Only if +VerifyOops && state == atos. void verify_oop_or_return_address(Register reg, Register rtmp); // for astore void verify_FPU(int stack_depth, TosState state = ftos); // JVMTI helpers void skip_if_jvmti_mode(Label &Lskip, Register Rscratch = Z_R0); // support for JVMTI/Dtrace typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode; void notify_method_entry(); void notify_method_exit(bool native_method, TosState state, NotifyMethodExitMode mode); // Pop the topmost TOP_IJAVA_FRAME and set it's sender_sp as new Z_SP. // The return pc is loaded into the Register return_pc. void pop_interpreter_frame(Register return_pc, Register tmp1, Register tmp2); }; #endif // CPU_S390_VM_INTERP_MASM_ZARCH_64_64_HPP