codegen-x64.h

// Copyright 2011 the V8 project authors. All rights reserved.
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// modification, are permitted provided that the following conditions are
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#ifndef V8_X64_CODEGEN_X64_H_
#define V8_X64_CODEGEN_X64_H_

#include "ast.h"
#include "ic-inl.h"

namespace v8 {
namespace internal {

// Forward declarations
class CompilationInfo;

enum TypeofState { INSIDE_TYPEOF, NOT_INSIDE_TYPEOF };

// -------------------------------------------------------------------------
// CodeGenerator

class CodeGenerator: public AstVisitor {
 public:
  CodeGenerator() {
    InitializeAstVisitor();
  }

  static bool MakeCode(CompilationInfo* info);

  // Printing of AST, etc. as requested by flags.
  static void MakeCodePrologue(CompilationInfo* info);

  // Allocate and install the code.
  static Handle<Code> MakeCodeEpilogue(MacroAssembler* masm,
                                       Code::Flags flags,
                                       CompilationInfo* info);

  // Print the code after compiling it.
  static void PrintCode(Handle<Code> code, CompilationInfo* info);

  static bool ShouldGenerateLog(Expression* type);

  static bool RecordPositions(MacroAssembler* masm,
                              int pos,
                              bool right_here = false);

  DEFINE_AST_VISITOR_SUBCLASS_MEMBERS();

 private:
  DISALLOW_COPY_AND_ASSIGN(CodeGenerator);
};


class StringCharLoadGenerator : public AllStatic {
 public:
  // Generates the code for handling different string types and loading the
  // indexed character into |result|.  We expect |index| as untagged input and
  // |result| as untagged output.
  static void Generate(MacroAssembler* masm,
                       Register string,
                       Register index,
                       Register result,
                       Label* call_runtime);

 private:
  DISALLOW_COPY_AND_ASSIGN(StringCharLoadGenerator);
};


class MathExpGenerator : public AllStatic {
 public:
  static void EmitMathExp(MacroAssembler* masm,
                          XMMRegister input,
                          XMMRegister result,
                          XMMRegister double_scratch,
                          Register temp1,
                          Register temp2);

 private:
  DISALLOW_COPY_AND_ASSIGN(MathExpGenerator);
};

} }  // namespace v8::internal

#endif  // V8_X64_CODEGEN_X64_H_