| /* |
| * Copyright (c) 2016, 2017, Oracle and/or its affiliates. All rights reserved. |
| * Copyright (c) 2016, 2017 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); |
| |
| // Base routine for all dispatches. |
| void dispatch_base(TosState state, address* table, bool generate_poll = false); |
| |
| public: |
| InterpreterMacroAssembler(CodeBuffer* c) |
| : MacroAssembler(c) {} |
| |
| virtual void check_and_handle_popframe(Register java_thread); |
| virtual void check_and_handle_earlyret(Register java_thread); |
| |
| 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, bool generate_poll = false); |
| // 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, bool generate_poll = false); |
| void dispatch_next_noverify_oop(TosState state, int step = 0); |
| void dispatch_via(TosState state, address* table); |
| |
| void narrow(Register result, Register ret_type); |
| |
| // 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); |
| // load cpool->resolved_klass_at(index) |
| void load_resolved_klass_at_offset(Register cpool, Register offset, Register iklass); |
| |
| // 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 |
