src/mips/codegen-mips.h

// Copyright 2011 the V8 project authors. All rights reserved.
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#ifndef V8_MIPS_CODEGEN_MIPS_H_
#define V8_MIPS_CODEGEN_MIPS_H_


#include "ast.h"
#include "code-stubs-mips.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:
  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);

#ifdef ENABLE_LOGGING_AND_PROFILING
  static bool ShouldGenerateLog(Expression* type);
#endif

  static void SetFunctionInfo(Handle<JSFunction> fun,
                              FunctionLiteral* lit,
                              bool is_toplevel,
                              Handle<Script> script);

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

  // Constants related to patching of inlined load/store.
  static int GetInlinedKeyedLoadInstructionsAfterPatch() {
    // This is in correlation with the padding in MacroAssembler::Abort.
    return FLAG_debug_code ? 45 : 20;
  }

  static const int kInlinedKeyedStoreInstructionsAfterPatch = 13;

  static int GetInlinedNamedStoreInstructionsAfterPatch() {
    ASSERT(Isolate::Current()->inlined_write_barrier_size() != -1);
    // Magic number 5: instruction count after patched map load:
    //  li: 2 (liu & ori), Branch : 2 (bne & nop), sw : 1
    return Isolate::Current()->inlined_write_barrier_size() + 5;
  }

 private:
  DISALLOW_COPY_AND_ASSIGN(CodeGenerator);
};


} }  // namespace v8::internal

#endif  // V8_MIPS_CODEGEN_MIPS_H_