src/ia32/codegen-ia32.h

// Copyright 2011 the V8 project authors. All rights reserved.
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#ifndef V8_IA32_CODEGEN_IA32_H_
#define V8_IA32_CODEGEN_IA32_H_

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

namespace v8 {
namespace internal {

// Forward declarations
class CompilationInfo;

static const int kSizeOfFullCodegenStrictModePrologue = 34;
static const int kSizeOfOptimizedStrictModePrologue = 12;
static const int kSizeOfOptimizedAlignStackPrologue = 44;

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

class CodeGenerator {
 public:
  // 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);


  static Operand FixedArrayElementOperand(Register array,
                                          Register index_as_smi,
                                          int additional_offset = 0) {
    int offset = FixedArray::kHeaderSize + additional_offset * kPointerSize;
    return FieldOperand(array, index_as_smi, times_half_pointer_size, offset);
  }

 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,
                       Factory* factory,
                       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_IA32_CODEGEN_IA32_H_