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//
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7//       notice, this list of conditions and the following disclaimer.
8//     * Redistributions in binary form must reproduce the above
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15//
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27
28#ifndef V8_IA32_CODEGEN_IA32_H_
29#define V8_IA32_CODEGEN_IA32_H_
30
31#include "ast.h"
32#include "ic-inl.h"
33
34namespace v8 {
35namespace internal {
36
37// Forward declarations
38class CompilationInfo;
39
40// -------------------------------------------------------------------------
41// CodeGenerator
42
43class CodeGenerator {
44 public:
45  // Printing of AST, etc. as requested by flags.
46  static void MakeCodePrologue(CompilationInfo* info);
47
48  // Allocate and install the code.
49  static Handle<Code> MakeCodeEpilogue(MacroAssembler* masm,
50                                       Code::Flags flags,
51                                       CompilationInfo* info);
52
53  // Print the code after compiling it.
54  static void PrintCode(Handle<Code> code, CompilationInfo* info);
55
56  static bool ShouldGenerateLog(Expression* type);
57
58  static bool RecordPositions(MacroAssembler* masm,
59                              int pos,
60                              bool right_here = false);
61
62
63  static Operand FixedArrayElementOperand(Register array,
64                                          Register index_as_smi,
65                                          int additional_offset = 0) {
66    int offset = FixedArray::kHeaderSize + additional_offset * kPointerSize;
67    return FieldOperand(array, index_as_smi, times_half_pointer_size, offset);
68  }
69
70 private:
71  DISALLOW_COPY_AND_ASSIGN(CodeGenerator);
72};
73
74
75class StringCharLoadGenerator : public AllStatic {
76 public:
77  // Generates the code for handling different string types and loading the
78  // indexed character into |result|.  We expect |index| as untagged input and
79  // |result| as untagged output.
80  static void Generate(MacroAssembler* masm,
81                       Factory* factory,
82                       Register string,
83                       Register index,
84                       Register result,
85                       Label* call_runtime);
86
87 private:
88  DISALLOW_COPY_AND_ASSIGN(StringCharLoadGenerator);
89};
90
91} }  // namespace v8::internal
92
93#endif  // V8_IA32_CODEGEN_IA32_H_
94