/* * Copyright (c) 2002, 2015, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2012, 2015 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_PPC_VM_INTERP_MASM_PPC_64_HPP #define CPU_PPC_VM_INTERP_MASM_PPC_64_HPP #include "asm/macroAssembler.hpp" #include "interpreter/invocationCounter.hpp" // This file specializes the assembler with interpreter-specific macros. class InterpreterMacroAssembler: public MacroAssembler { public: InterpreterMacroAssembler(CodeBuffer* code) : MacroAssembler(code) {} void null_check_throw(Register a, int offset, Register temp_reg); void jump_to_entry(address entry, Register Rscratch); // Handy address generation macros. #define thread_(field_name) in_bytes(JavaThread::field_name ## _offset()), R16_thread #define method_(field_name) in_bytes(Method::field_name ## _offset()), R19_method 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); void load_earlyret_value(TosState state, Register Rscratch1); static const Address l_tmp; static const Address d_tmp; // dispatch routines void dispatch_next(TosState state, int step = 0); void dispatch_via (TosState state, address* table); void load_dispatch_table(Register dst, address* table); void dispatch_Lbyte_code(TosState state, Register bytecode, address* table, bool verify = false); // Called by shared interpreter generator. void dispatch_prolog(TosState state, int step = 0); void dispatch_epilog(TosState state, int step = 0); // Super call_VM calls - correspond to MacroAssembler::call_VM(_leaf) calls. void super_call_VM_leaf(Register thread_cache, address entry_point, Register arg_1); 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, Register tmp3, Label &ok_is_subtype); // Load object from cpool->resolved_references(index). void load_resolved_reference_at_index(Register result, Register index, Label *is_null = NULL); void generate_stack_overflow_check_with_compare_and_throw(Register Rmem_frame_size, Register Rscratch1); void load_receiver(Register Rparam_count, Register Rrecv_dst); // helpers for expression stack void pop_i( Register r = R17_tos); void pop_ptr( Register r = R17_tos); void pop_l( Register r = R17_tos); void pop_f(FloatRegister f = F15_ftos); void pop_d(FloatRegister f = F15_ftos ); void push_i( Register r = R17_tos); void push_ptr( Register r = R17_tos); void push_l( Register r = R17_tos); void push_f(FloatRegister f = F15_ftos ); void push_d(FloatRegister f = F15_ftos); void push_2ptrs(Register first, Register second); void push_l_pop_d(Register l = R17_tos, FloatRegister d = F15_ftos); void push_d_pop_l(FloatRegister d = F15_ftos, Register l = R17_tos); void pop (TosState state); // transition vtos -> state void push(TosState state); // transition state -> vtos void empty_expression_stack(); // Resets both Lesp and SP. public: // Load values from bytecode stream: enum signedOrNot { Signed, Unsigned }; enum setCCOrNot { set_CC, dont_set_CC }; void get_2_byte_integer_at_bcp(int bcp_offset, Register Rdst, signedOrNot is_signed); void get_4_byte_integer_at_bcp(int bcp_offset, Register Rdst, signedOrNot is_signed = Unsigned); void get_cache_index_at_bcp(Register Rdst, int bcp_offset, size_t index_size); void get_cache_and_index_at_bcp(Register cache, int bcp_offset, size_t index_size = sizeof(u2)); void get_u4(Register Rdst, Register Rsrc, int offset, signedOrNot is_signed); // 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_const(Register Rdst); 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); // Java Call Helpers void call_from_interpreter(Register Rtarget_method, Register Rret_addr, Register Rscratch1, Register Rscratch2); // -------------------------------------------------- void unlock_if_synchronized_method(TosState state, bool throw_monitor_exception = true, bool install_monitor_exception = true); // 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, bool throw_monitor_exception = true, bool install_monitor_exception = true); void merge_frames(Register Rtop_frame_sp, Register return_pc, Register Rscratch1, Register Rscratch2); // merge top frames void add_monitor_to_stack(bool stack_is_empty, Register Rtemp1, Register Rtemp2); // Local variable access helpers void load_local_int(Register Rdst_value, Register Rdst_address, Register Rindex); void load_local_long(Register Rdst_value, Register Rdst_address, Register Rindex); void load_local_ptr(Register Rdst_value, Register Rdst_address, Register Rindex); void load_local_float(FloatRegister Rdst_value, Register Rdst_address, Register Rindex); void load_local_double(FloatRegister Rdst_value, Register Rdst_address, Register Rindex); void store_local_int(Register Rvalue, Register Rindex); void store_local_long(Register Rvalue, Register Rindex); void store_local_ptr(Register Rvalue, Register Rindex); void store_local_float(FloatRegister Rvalue, Register Rindex); void store_local_double(FloatRegister Rvalue, Register Rindex); // Call VM for std frames // Special call VM versions that check for exceptions and forward exception // via short cut (not via expensive forward exception stub). void check_and_forward_exception(Register Rscratch1, Register Rscratch2); void call_VM(Register oop_result, address entry_point, bool check_exceptions = true); void call_VM(Register oop_result, address entry_point, Register arg_1, bool check_exceptions = true); void call_VM(Register oop_result, address entry_point, Register arg_1, Register arg_2, bool check_exceptions = true); void call_VM(Register oop_result, address entry_point, Register arg_1, Register arg_2, Register arg_3, bool check_exceptions = true); // Should not be used: void call_VM(Register oop_result, Register last_java_sp, address entry_point, bool check_exceptions = true) {ShouldNotReachHere();} void call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, bool check_exceptions = true) {ShouldNotReachHere();} void call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2, bool check_exceptions = true) {ShouldNotReachHere();} void call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2, Register arg_3, bool check_exceptions = true) {ShouldNotReachHere();} Address first_local_in_stack(); 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 save_interpreter_state(Register scratch); void restore_interpreter_state(Register scratch, bool bcp_and_mdx_only = false); void increment_backedge_counter(const Register Rcounters, Register Rtmp, Register Rtmp2, Register Rscratch); void test_backedge_count_for_osr(Register backedge_count, Register method_counters, Register target_bcp, Register disp, Register Rtmp); void record_static_call_in_profile(Register Rentry, Register Rtmp); void record_receiver_call_in_profile(Register Rklass, Register Rentry, Register Rtmp); void get_method_counters(Register method, Register Rcounters, Label& skip); void increment_invocation_counter(Register iv_be_count, Register Rtmp1, Register Rtmp2_r0); // Object locking void lock_object (Register lock_reg, Register obj_reg); void unlock_object(Register lock_reg, bool check_for_exceptions = true); // Interpreter profiling operations void set_method_data_pointer_for_bcp(); void test_method_data_pointer(Label& zero_continue); void verify_method_data_pointer(); void test_invocation_counter_for_mdp(Register invocation_count, Register method_counters, Register Rscratch, Label &profile_continue); void set_mdp_data_at(int constant, Register value); void increment_mdp_data_at(int constant, Register counter_addr, Register Rbumped_count, bool decrement = false); void increment_mdp_data_at(Register counter_addr, Register Rbumped_count, bool decrement = false); void increment_mdp_data_at(Register reg, int constant, Register scratch, Register Rbumped_count, bool decrement = false); void set_mdp_flag_at(int flag_constant, Register scratch); void test_mdp_data_at(int offset, Register value, Label& not_equal_continue, Register test_out); void update_mdp_by_offset(int offset_of_disp, Register scratch); void update_mdp_by_offset(Register reg, int offset_of_disp, Register scratch); void update_mdp_by_constant(int constant); void update_mdp_for_ret(TosState state, Register return_bci); void profile_taken_branch(Register scratch, Register bumped_count); void profile_not_taken_branch(Register scratch1, Register scratch2); void profile_call(Register scratch1, Register scratch2); void profile_final_call(Register scratch1, Register scratch2); void profile_virtual_call(Register Rreceiver, Register Rscratch1, Register Rscratch2, bool receiver_can_be_null); void profile_typecheck(Register Rklass, Register Rscratch1, Register Rscratch2); void profile_typecheck_failed(Register Rscratch1, Register Rscratch2); void profile_ret(TosState state, Register return_bci, Register scratch1, Register scratch2); void profile_switch_default(Register scratch1, Register scratch2); void profile_switch_case(Register index, Register scratch1,Register scratch2, Register scratch3); void profile_null_seen(Register Rscratch1, Register Rscratch2); void record_klass_in_profile(Register receiver, Register scratch1, Register scratch2, bool is_virtual_call); void record_klass_in_profile_helper(Register receiver, Register scratch1, Register scratch2, int start_row, Label& done, bool is_virtual_call); // Argument and return type profiling. void profile_obj_type(Register obj, Register mdo_addr_base, RegisterOrConstant mdo_addr_offs, Register tmp, Register tmp2); void profile_arguments_type(Register callee, Register tmp1, Register tmp2, bool is_virtual); void profile_return_type(Register ret, Register tmp1, Register tmp2); void profile_parameters_type(Register tmp1, Register tmp2, Register tmp3, Register tmp4); // 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); typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode; // Support for jvmdi/jvmpi. void notify_method_entry(); void notify_method_exit(bool is_native_method, TosState state, NotifyMethodExitMode mode, bool check_exceptions); }; #endif // CPU_PPC_VM_INTERP_MASM_PPC_64_HPP