--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/cpu/s390/interp_masm_s390.hpp Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,331 @@
+/*
+ * 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);
+
+ 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);
+ // 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);
+ // 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