1 /*
 2  * Copyright (c) 2000, 2019, 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 
33 class C1_MacroAssembler: public MacroAssembler {
34  public:
35   // creation
36   C1_MacroAssembler(CodeBuffer* code) : MacroAssembler(code) { pd_init(); }
37 
38   //----------------------------------------------------
39   void explicit_null_check(Register base);
40 
41   void inline_cache_check(Register receiver, Register iCache);
42   void build_frame(int frame_size_in_bytes, int bang_size_in_bytes);
43   void remove_frame(int frame_size_in_bytes);
44 
45   void oopmap_metadata(CodeEmitInfo* info);
46 
47   void verified_entry();
48   void verify_stack_oop(int offset) PRODUCT_RETURN;
49   void verify_not_null_oop(Register r)  PRODUCT_RETURN;
50 
51 #include CPU_HEADER(c1_MacroAssembler)
52 
53 };
54 
55 
56 
57 // A StubAssembler is a MacroAssembler w/ extra functionality for runtime
58 // stubs. Currently it 'knows' some stub info. Eventually, the information
59 // may be set automatically or can be asserted when using specialised
60 // StubAssembler functions.
61 
62 class StubAssembler: public C1_MacroAssembler {
63  private:
64   const char* _name;
65   bool        _must_gc_arguments;
66   int         _frame_size;
67   int         _num_rt_args;
68   int         _stub_id;
69 
70  public:
71   // creation
72   StubAssembler(CodeBuffer* code, const char * name, int stub_id);
73   void set_info(const char* name, bool must_gc_arguments);
74 
75   void set_frame_size(int size);
76   void set_num_rt_args(int args);
77 
78   void save_live_registers();
79   void restore_live_registers_without_return();
80 
81   // accessors
82   const char* name() const                       { return _name; }
83   bool  must_gc_arguments() const                { return _must_gc_arguments; }
84   int frame_size() const                         { return _frame_size; }
85   int num_rt_args() const                        { return _num_rt_args; }
86   int stub_id() const                            { return _stub_id; }
87 
88   // runtime calls (return offset of call to be used by GC map)
89   int call_RT(Register oop_result1, Register metadata_result, address entry, int args_size = 0);
90   int call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1);
91   int call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1, Register arg2);
92   int call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1, Register arg2, Register arg3);
93 
94   void prologue(const char* name, bool must_gc_arguments);
95   void epilogue();
96 };
97 
98 #endif // SHARE_C1_C1_MACROASSEMBLER_HPP