Merge bleeding_edge r17376:17693.

src/ia32/lithium-codegen-ia32.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 250 matching lines @@
                                     SafepointMode safepoint_mode);
 
   void RegisterEnvironmentForDeoptimization(LEnvironment* environment,
                                             Safepoint::DeoptMode mode);
   void DeoptimizeIf(Condition cc,
                     LEnvironment* environment,
                     Deoptimizer::BailoutType bailout_type);
   void DeoptimizeIf(Condition cc, LEnvironment* environment);
   void ApplyCheckIf(Condition cc, LBoundsCheck* check);
 
+  bool DeoptEveryNTimes() {
+    return FLAG_deopt_every_n_times != 0 && !info()->IsStub();
+  }
+
   void AddToTranslation(LEnvironment* environment,
                         Translation* translation,
                         LOperand* op,
                         bool is_tagged,
                         bool is_uint32,
                         int* object_index_pointer,
                         int* dematerialized_index_pointer);
   void RegisterDependentCodeForEmbeddedMaps(Handle<Code> code);
   void PopulateDeoptimizationData(Handle<Code> code);
   int DefineDeoptimizationLiteral(Handle<Object> literal);
 
   void PopulateDeoptimizationLiteralsWithInlinedFunctions();
 
   Register ToRegister(int index) const;
   XMMRegister ToDoubleRegister(int index) const;
   X87Register ToX87Register(int index) const;
   int32_t ToRepresentation(LConstantOperand* op, const Representation& r) const;
   int32_t ToInteger32(LConstantOperand* op) const;
   ExternalReference ToExternalReference(LConstantOperand* op) const;
 
   Operand BuildFastArrayOperand(LOperand* elements_pointer,
                                 LOperand* key,
                                 Representation key_representation,
                                 ElementsKind elements_kind,
                                 uint32_t offset,
                                 uint32_t additional_index = 0);
 
+  Operand BuildSeqStringOperand(Register string,
+                                LOperand* index,
+                                String::Encoding encoding);
+
   void EmitIntegerMathAbs(LMathAbs* instr);
 
   // Support for recording safepoint and position information.
   void RecordSafepoint(LPointerMap* pointers,
                        Safepoint::Kind kind,
                        int arguments,
                        Safepoint::DeoptMode mode);
   void RecordSafepoint(LPointerMap* pointers, Safepoint::DeoptMode mode);
   void RecordSafepoint(Safepoint::DeoptMode mode);
   void RecordSafepointWithRegisters(LPointerMap* pointers,
                                     int arguments,
                                     Safepoint::DeoptMode mode);
 
   void RecordAndWritePosition(int position) V8_OVERRIDE;
 
   static Condition TokenToCondition(Token::Value op, bool is_unsigned);
   void EmitGoto(int block);
+
+  // EmitBranch expects to be the last instruction of a block.
   template<class InstrType>
   void EmitBranch(InstrType instr, Condition cc);
   template<class InstrType>
   void EmitFalseBranch(InstrType instr, Condition cc);
   void EmitNumberUntagD(
       Register input,
       Register temp,
       XMMRegister result,
       bool allow_undefined_as_nan,
       bool deoptimize_on_minus_zero,
@@ skipping 203 matching lines @@
   Label exit_;
   Label* external_exit_;
   Label done_;
   int instruction_index_;
   LCodeGen::X87Stack x87_stack_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_IA32_LITHIUM_CODEGEN_IA32_H_