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/*
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* Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
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* Copyright (c) 2014, Red Hat Inc. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#ifndef CPU_AARCH64_VM_INTERP_MASM_AARCH64_64_HPP
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#define CPU_AARCH64_VM_INTERP_MASM_AARCH64_64_HPP
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#include "asm/macroAssembler.hpp"
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#include "asm/macroAssembler.inline.hpp"
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#include "interpreter/invocationCounter.hpp"
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#include "runtime/frame.hpp"
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// This file specializes the assember with interpreter-specific macros
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class InterpreterMacroAssembler: public MacroAssembler {
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#ifndef CC_INTERP
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protected:
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protected:
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// Interpreter specific version of call_VM_base
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virtual void call_VM_leaf_base(address entry_point,
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int number_of_arguments);
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virtual void call_VM_base(Register oop_result,
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Register java_thread,
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Register last_java_sp,
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address entry_point,
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int number_of_arguments,
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bool check_exceptions);
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virtual void check_and_handle_popframe(Register java_thread);
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virtual void check_and_handle_earlyret(Register java_thread);
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// base routine for all dispatches
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void dispatch_base(TosState state, address* table, bool verifyoop = true);
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#endif // CC_INTERP
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public:
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InterpreterMacroAssembler(CodeBuffer* code) : MacroAssembler(code) {}
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void load_earlyret_value(TosState state);
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#ifdef CC_INTERP
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void save_bcp() { /* not needed in c++ interpreter and harmless */ }
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void restore_bcp() { /* not needed in c++ interpreter and harmless */ }
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// Helpers for runtime call arguments/results
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void get_method(Register reg);
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#else
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// Interpreter-specific registers
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void save_bcp() {
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str(rbcp, Address(rfp, frame::interpreter_frame_bcp_offset * wordSize));
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}
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void restore_bcp() {
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ldr(rbcp, Address(rfp, frame::interpreter_frame_bcp_offset * wordSize));
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}
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void restore_locals() {
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ldr(rlocals, Address(rfp, frame::interpreter_frame_locals_offset * wordSize));
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}
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void restore_constant_pool_cache() {
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ldr(rcpool, Address(rfp, frame::interpreter_frame_cache_offset * wordSize));
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}
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void get_dispatch();
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// Helpers for runtime call arguments/results
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// Helpers for runtime call arguments/results
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void get_method(Register reg) {
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ldr(reg, Address(rfp, frame::interpreter_frame_method_offset * wordSize));
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}
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void get_const(Register reg) {
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get_method(reg);
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ldr(reg, Address(reg, in_bytes(Method::const_offset())));
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}
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void get_constant_pool(Register reg) {
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get_const(reg);
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ldr(reg, Address(reg, in_bytes(ConstMethod::constants_offset())));
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}
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void get_constant_pool_cache(Register reg) {
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get_constant_pool(reg);
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ldr(reg, Address(reg, ConstantPool::cache_offset_in_bytes()));
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}
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void get_cpool_and_tags(Register cpool, Register tags) {
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get_constant_pool(cpool);
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ldr(tags, Address(cpool, ConstantPool::tags_offset_in_bytes()));
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}
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void get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset);
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void get_cache_and_index_at_bcp(Register cache, Register index, int bcp_offset, size_t index_size = sizeof(u2));
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void get_cache_and_index_and_bytecode_at_bcp(Register cache, Register index, Register bytecode, int byte_no, int bcp_offset, size_t index_size = sizeof(u2));
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void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset, size_t index_size = sizeof(u2));
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void get_cache_index_at_bcp(Register index, int bcp_offset, size_t index_size = sizeof(u2));
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void get_method_counters(Register method, Register mcs, Label& skip);
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// load cpool->resolved_references(index);
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void load_resolved_reference_at_index(Register result, Register index);
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void pop_ptr(Register r = r0);
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void pop_i(Register r = r0);
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void pop_l(Register r = r0);
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void pop_f(FloatRegister r = v0);
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void pop_d(FloatRegister r = v0);
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void push_ptr(Register r = r0);
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void push_i(Register r = r0);
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void push_l(Register r = r0);
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void push_f(FloatRegister r = v0);
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void push_d(FloatRegister r = v0);
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void pop(Register r ) { ((MacroAssembler*)this)->pop(r); }
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void push(Register r ) { ((MacroAssembler*)this)->push(r); }
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void pop(TosState state); // transition vtos -> state
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void push(TosState state); // transition state -> vtos
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void pop(RegSet regs, Register stack) { ((MacroAssembler*)this)->pop(regs, stack); }
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void push(RegSet regs, Register stack) { ((MacroAssembler*)this)->push(regs, stack); }
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void empty_expression_stack() {
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ldr(esp, Address(rfp, frame::interpreter_frame_monitor_block_top_offset * wordSize));
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// NULL last_sp until next java call
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str(zr, Address(rfp, frame::interpreter_frame_last_sp_offset * wordSize));
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}
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// Helpers for swap and dup
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void load_ptr(int n, Register val);
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void store_ptr(int n, Register val);
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// Generate a subtype check: branch to ok_is_subtype if sub_klass is
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// a subtype of super_klass.
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void gen_subtype_check( Register sub_klass, Label &ok_is_subtype );
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// Dispatching
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void dispatch_prolog(TosState state, int step = 0);
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void dispatch_epilog(TosState state, int step = 0);
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// dispatch via rscratch1
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void dispatch_only(TosState state);
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// dispatch normal table via rscratch1 (assume rscratch1 is loaded already)
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void dispatch_only_normal(TosState state);
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void dispatch_only_noverify(TosState state);
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// load rscratch1 from [rbcp + step] and dispatch via rscratch1
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void dispatch_next(TosState state, int step = 0);
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// load rscratch1 from [esi] and dispatch via rscratch1 and table
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void dispatch_via (TosState state, address* table);
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// jump to an invoked target
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void prepare_to_jump_from_interpreted();
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void jump_from_interpreted(Register method, Register temp);
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// Returning from interpreted functions
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//
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// Removes the current activation (incl. unlocking of monitors)
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// and sets up the return address. This code is also used for
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// exception unwindwing. In that case, we do not want to throw
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// IllegalMonitorStateExceptions, since that might get us into an
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// infinite rethrow exception loop.
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// Additionally this code is used for popFrame and earlyReturn.
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// In popFrame case we want to skip throwing an exception,
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// installing an exception, and notifying jvmdi.
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// In earlyReturn case we only want to skip throwing an exception
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// and installing an exception.
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void remove_activation(TosState state,
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bool throw_monitor_exception = true,
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bool install_monitor_exception = true,
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bool notify_jvmdi = true);
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#endif // CC_INTERP
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// FIXME: Give us a valid frame at a null check.
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virtual void null_check(Register reg, int offset = -1) {
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// #ifdef ASSERT
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// save_bcp();
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// set_last_Java_frame(esp, rfp, (address) pc());
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// #endif
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MacroAssembler::null_check(reg, offset);
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// #ifdef ASSERT
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// reset_last_Java_frame(true, false);
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// #endif
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}
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// Object locking
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void lock_object (Register lock_reg);
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void unlock_object(Register lock_reg);
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#ifndef CC_INTERP
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// Interpreter profiling operations
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void set_method_data_pointer_for_bcp();
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void test_method_data_pointer(Register mdp, Label& zero_continue);
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void verify_method_data_pointer();
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void set_mdp_data_at(Register mdp_in, int constant, Register value);
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void increment_mdp_data_at(Address data, bool decrement = false);
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void increment_mdp_data_at(Register mdp_in, int constant,
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bool decrement = false);
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void increment_mdp_data_at(Register mdp_in, Register reg, int constant,
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bool decrement = false);
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void increment_mask_and_jump(Address counter_addr,
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int increment, int mask,
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Register scratch, bool preloaded,
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Condition cond, Label* where);
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void set_mdp_flag_at(Register mdp_in, int flag_constant);
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void test_mdp_data_at(Register mdp_in, int offset, Register value,
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Register test_value_out,
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Label& not_equal_continue);
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void record_klass_in_profile(Register receiver, Register mdp,
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Register reg2, bool is_virtual_call);
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void record_klass_in_profile_helper(Register receiver, Register mdp,
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Register reg2, int start_row,
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Label& done, bool is_virtual_call);
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void update_mdp_by_offset(Register mdp_in, int offset_of_offset);
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void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp);
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void update_mdp_by_constant(Register mdp_in, int constant);
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void update_mdp_for_ret(Register return_bci);
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void profile_taken_branch(Register mdp, Register bumped_count);
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void profile_not_taken_branch(Register mdp);
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void profile_call(Register mdp);
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void profile_final_call(Register mdp);
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void profile_virtual_call(Register receiver, Register mdp,
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Register scratch2,
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bool receiver_can_be_null = false);
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void profile_ret(Register return_bci, Register mdp);
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void profile_null_seen(Register mdp);
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void profile_typecheck(Register mdp, Register klass, Register scratch);
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void profile_typecheck_failed(Register mdp);
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void profile_switch_default(Register mdp);
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void profile_switch_case(Register index_in_scratch, Register mdp,
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Register scratch2);
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void profile_obj_type(Register obj, const Address& mdo_addr);
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void profile_arguments_type(Register mdp, Register callee, Register tmp, bool is_virtual);
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void profile_return_type(Register mdp, Register ret, Register tmp);
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void profile_parameters_type(Register mdp, Register tmp1, Register tmp2);
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// Debugging
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// only if +VerifyOops && state == atos
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void verify_oop(Register reg, TosState state = atos);
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// only if +VerifyFPU && (state == ftos || state == dtos)
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void verify_FPU(int stack_depth, TosState state = ftos);
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#endif // !CC_INTERP
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typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode;
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// support for jvmti/dtrace
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void notify_method_entry();
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void notify_method_exit(TosState state, NotifyMethodExitMode mode);
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virtual void _call_Unimplemented(address call_site) {
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save_bcp();
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set_last_Java_frame(esp, rfp, (address) pc(), rscratch1);
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MacroAssembler::_call_Unimplemented(call_site);
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}
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};
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#endif // CPU_AARCH64_VM_INTERP_MASM_AARCH64_64_HPP
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