1 /*
2 * Copyright (c) 2000, 2021, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_C1_C1_MACROASSEMBLER_HPP
26 #define SHARE_C1_C1_MACROASSEMBLER_HPP
27
28 #include "asm/macroAssembler.hpp"
29 #include "utilities/macros.hpp"
30
31 class CodeEmitInfo;
32 class CompiledEntrySignature;
33 class C1_MacroAssembler: public MacroAssembler {
34 private:
35 int scalarized_entry(const CompiledEntrySignature* ces, int frame_size_in_bytes, int bang_size_in_bytes, int sp_offset_for_orig_pc, Label& verified_inline_entry_label, bool is_inline_ro_entry);
36 void build_frame_helper(int frame_size_in_bytes, int sp_offset_for_orig_pc, int sp_inc, bool reset_orig_pc, bool needs_stack_repair);
37 public:
38 // creation
39 C1_MacroAssembler(CodeBuffer* code) : MacroAssembler(code) { pd_init(); }
40
41 //----------------------------------------------------
42 void explicit_null_check(Register base);
43
44 void build_frame(int frame_size_in_bytes, int bang_size_in_bytes, int sp_offset_for_orig_pc = 0, bool needs_stack_repair = false, bool has_scalarized_args = false, Label* verified_inline_entry_label = nullptr);
45
46 int verified_entry(const CompiledEntrySignature* ces, int frame_size_in_bytes, int bang_size_in_bytes, int sp_offset_for_orig_pc, Label& verified_inline_entry_label) {
47 return scalarized_entry(ces, frame_size_in_bytes, bang_size_in_bytes, sp_offset_for_orig_pc, verified_inline_entry_label, false);
48 }
49 int verified_inline_ro_entry(const CompiledEntrySignature* ces, int frame_size_in_bytes, int bang_size_in_bytes, int sp_offset_for_orig_pc, Label& verified_inline_entry_label) {
50 return scalarized_entry(ces, frame_size_in_bytes, bang_size_in_bytes, sp_offset_for_orig_pc, verified_inline_entry_label, true);
51 }
52 void verified_entry(bool breakAtEntry);
53
54 void verify_stack_oop(int offset) PRODUCT_RETURN;
55 void verify_not_null_oop(Register r) PRODUCT_RETURN;
56
57 #include CPU_HEADER(c1_MacroAssembler)
58
59 };
60
61
62
63 // A StubAssembler is a MacroAssembler w/ extra functionality for runtime
64 // stubs. Currently it 'knows' some stub info. Eventually, the information
65 // may be set automatically or can be asserted when using specialised
66 // StubAssembler functions.
67
68 class StubAssembler: public C1_MacroAssembler {
69 private:
70 const char* _name;
71 bool _must_gc_arguments;
72 int _frame_size;
73 int _num_rt_args;
74 int _stub_id;
75
76 public:
77 // creation
78 StubAssembler(CodeBuffer* code, const char * name, int stub_id);
79 void set_info(const char* name, bool must_gc_arguments);
80
81 void set_frame_size(int size);
82 void set_num_rt_args(int args);
83
84 void save_live_registers();
85 void restore_live_registers_without_return();
86
87 // accessors
88 const char* name() const { return _name; }
89 bool must_gc_arguments() const { return _must_gc_arguments; }
90 int frame_size() const { return _frame_size; }
91 int num_rt_args() const { return _num_rt_args; }
92 int stub_id() const { return _stub_id; }
93
94 // runtime calls (return offset of call to be used by GC map)
95 int call_RT(Register oop_result1, Register metadata_result, address entry, int args_size = 0);
96 int call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1);
97 int call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1, Register arg2);
98 int call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1, Register arg2, Register arg3);
99
100 void prologue(const char* name, bool must_gc_arguments);
101 void epilogue();
102 };
103
104 #endif // SHARE_C1_C1_MACROASSEMBLER_HPP