PPC: Correctify instanceof and make it optimizable.

src/ppc/lithium-codegen-ppc.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_PPC_LITHIUM_CODEGEN_PPC_H_
 #define V8_PPC_LITHIUM_CODEGEN_PPC_H_
 
 #include "src/ppc/lithium-ppc.h"
 
 #include "src/ppc/lithium-gap-resolver-ppc.h"
@@ skipping 93 matching lines @@
                              LOperand* temp1, LOperand* temp2,
                              IntegerSignedness signedness);
 
   void DoDeferredTaggedToI(LTaggedToI* instr);
   void DoDeferredMathAbsTaggedHeapNumber(LMathAbs* instr);
   void DoDeferredStackCheck(LStackCheck* instr);
   void DoDeferredMaybeGrowElements(LMaybeGrowElements* instr);
   void DoDeferredStringCharCodeAt(LStringCharCodeAt* instr);
   void DoDeferredStringCharFromCode(LStringCharFromCode* instr);
   void DoDeferredAllocate(LAllocate* instr);
-  void DoDeferredInstanceOfKnownGlobal(LInstanceOfKnownGlobal* instr,
-                                       Label* map_check, Label* bool_load);
   void DoDeferredInstanceMigration(LCheckMaps* instr, Register object);
   void DoDeferredLoadMutableDouble(LLoadFieldByIndex* instr, Register result,
                                    Register object, Register index);
 
   // Parallel move support.
   void DoParallelMove(LParallelMove* move);
   void DoGap(LGap* instr);
 
   MemOperand PrepareKeyedOperand(Register key, Register base,
                                  bool key_is_constant, bool key_is_tagged,
@@ skipping 110 matching lines @@
 
   void RecordAndWritePosition(int position) override;
 
   static Condition TokenToCondition(Token::Value op);
   void EmitGoto(int block);
 
   // EmitBranch expects to be the last instruction of a block.
   template <class InstrType>
   void EmitBranch(InstrType instr, Condition condition, CRegister cr = cr7);
   template <class InstrType>
+  void EmitTrueBranch(InstrType instr, Condition condition, CRegister cr = cr7);
+  template <class InstrType>
   void EmitFalseBranch(InstrType instr, Condition condition,
                        CRegister cr = cr7);
   void EmitNumberUntagD(LNumberUntagD* instr, Register input,
                         DoubleRegister result, NumberUntagDMode mode);
 
   // Emits optimized code for typeof x == "y".  Modifies input register.
   // Returns the condition on which a final split to
   // true and false label should be made, to optimize fallthrough.
   Condition EmitTypeofIs(Label* true_label, Label* false_label, Register input,
                          Handle<String> type_name);
@@ skipping 99 matching lines @@
   LCodeGen* codegen_;
   Label entry_;
   Label exit_;
   Label* external_exit_;
   int instruction_index_;
 };
 }
 }  // namespace v8::internal
 
 #endif  // V8_PPC_LITHIUM_CODEGEN_PPC_H_