1// Copyright 2011 the V8 project authors. All rights reserved.
2// Redistribution and use in source and binary forms, with or without
3// modification, are permitted provided that the following conditions are
4// met:
5//
6//     * Redistributions of source code must retain the above copyright
7//       notice, this list of conditions and the following disclaimer.
8//     * Redistributions in binary form must reproduce the above
9//       copyright notice, this list of conditions and the following
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11//       with the distribution.
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13//       contributors may be used to endorse or promote products derived
14//       from this software without specific prior written permission.
15//
16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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27
28#ifndef V8_X64_CODEGEN_X64_H_
29#define V8_X64_CODEGEN_X64_H_
30
31#include "ast.h"
32#include "ic-inl.h"
33
34namespace v8 {
35namespace internal {
36
37// Forward declarations
38class CompilationInfo;
39
40enum TypeofState { INSIDE_TYPEOF, NOT_INSIDE_TYPEOF };
41
42
43// -------------------------------------------------------------------------
44// CodeGenerator
45
46class CodeGenerator: public AstVisitor {
47 public:
48  static bool MakeCode(CompilationInfo* info);
49
50  // Printing of AST, etc. as requested by flags.
51  static void MakeCodePrologue(CompilationInfo* info);
52
53  // Allocate and install the code.
54  static Handle<Code> MakeCodeEpilogue(MacroAssembler* masm,
55                                       Code::Flags flags,
56                                       CompilationInfo* info);
57
58  // Print the code after compiling it.
59  static void PrintCode(Handle<Code> code, CompilationInfo* info);
60
61  static bool ShouldGenerateLog(Expression* type);
62
63  static bool RecordPositions(MacroAssembler* masm,
64                              int pos,
65                              bool right_here = false);
66
67 private:
68  DISALLOW_COPY_AND_ASSIGN(CodeGenerator);
69};
70
71
72class StringCharLoadGenerator : public AllStatic {
73 public:
74  // Generates the code for handling different string types and loading the
75  // indexed character into |result|.  We expect |index| as untagged input and
76  // |result| as untagged output.
77  static void Generate(MacroAssembler* masm,
78                       Register string,
79                       Register index,
80                       Register result,
81                       Label* call_runtime);
82
83 private:
84  DISALLOW_COPY_AND_ASSIGN(StringCharLoadGenerator);
85};
86
87} }  // namespace v8::internal
88
89#endif  // V8_X64_CODEGEN_X64_H_
90