Fix lazy deoptimization at HInvokeFunction and enable target-recording call-function stub.

src/x64/lithium-codegen-x64.h

 // Copyright 2011 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 42 matching lines @@
         current_instruction_(-1),
         instructions_(chunk->instructions()),
         deoptimizations_(4),
         jump_table_(4),
         deoptimization_literals_(8),
         inlined_function_count_(0),
         scope_(info->scope()),
         status_(UNUSED),
         deferred_(8),
         osr_pc_offset_(-1),
+        last_lazy_deopt_pc_(0),
         resolver_(this),
         expected_safepoint_kind_(Safepoint::kSimple) {
     PopulateDeoptimizationLiteralsWithInlinedFunctions();
   }
 
   // Simple accessors.
   MacroAssembler* masm() const { return masm_; }
   CompilationInfo* info() const { return info_; }
   Isolate* isolate() const { return info_->isolate(); }
   Factory* factory() const { return isolate()->factory(); }
@@ skipping 18 matching lines @@
   // information on it.
   void FinishCode(Handle<Code> code);
 
   // Deferred code support.
   void DoDeferredNumberTagD(LNumberTagD* instr);
   void DoDeferredTaggedToI(LTaggedToI* instr);
   void DoDeferredMathAbsTaggedHeapNumber(LUnaryMathOperation* instr);
   void DoDeferredStackCheck(LStackCheck* instr);
   void DoDeferredStringCharCodeAt(LStringCharCodeAt* instr);
   void DoDeferredStringCharFromCode(LStringCharFromCode* instr);
-  void DoDeferredLInstanceOfKnownGlobal(LInstanceOfKnownGlobal* instr,
-                                        Label* map_check);
+  void DoDeferredInstanceOfKnownGlobal(LInstanceOfKnownGlobal* instr,
+                                       Label* map_check);
 
   // Parallel move support.
   void DoParallelMove(LParallelMove* move);
   void DoGap(LGap* instr);
 
   // Emit frame translation commands for an environment.
   void WriteTranslation(LEnvironment* environment, Translation* translation);
 
   // Declare methods that deal with the individual node types.
 #define DECLARE_DO(type) void Do##type(L##type* node);
@@ skipping 15 matching lines @@
 
   StrictModeFlag strict_mode_flag() const {
     return info()->strict_mode_flag();
   }
 
   LChunk* chunk() const { return chunk_; }
   Scope* scope() const { return scope_; }
   HGraph* graph() const { return chunk_->graph(); }
 
   int GetNextEmittedBlock(int block);
-  LInstruction* GetNextInstruction();
 
   void EmitClassOfTest(Label* if_true,
                        Label* if_false,
                        Handle<String> class_name,
                        Register input,
                        Register temporary,
                        Register scratch);
 
   int GetStackSlotCount() const { return chunk()->spill_slot_count(); }
   int GetParameterCount() const { return scope()->num_parameters(); }
@@ skipping 44 matching lines @@
 
   // Generate a direct call to a known function.  Expects the function
   // to be in rdi.
   void CallKnownFunction(Handle<JSFunction> function,
                          int arity,
                          LInstruction* instr,
                          CallKind call_kind);
 
   void LoadHeapObject(Register result, Handle<HeapObject> object);
 
-  void RegisterLazyDeoptimization(LInstruction* instr,
-                                  SafepointMode safepoint_mode,
-                                  int argc);
-  void RegisterEnvironmentForDeoptimization(LEnvironment* environment);
+  void RecordSafepointWithLazyDeopt(LInstruction* instr,
+                                    SafepointMode safepoint_mode,
+                                    int argc);
+  void RegisterEnvironmentForDeoptimization(LEnvironment* environment,
+                                            Safepoint::DeoptMode mode);
   void DeoptimizeIf(Condition cc, LEnvironment* environment);
 
   void AddToTranslation(Translation* translation,
                         LOperand* op,
                         bool is_tagged);
   void PopulateDeoptimizationData(Handle<Code> code);
   int DefineDeoptimizationLiteral(Handle<Object> literal);
 
   void PopulateDeoptimizationLiteralsWithInlinedFunctions();
 
@@ skipping 13 matching lines @@
   void DoMathSqrt(LUnaryMathOperation* instr);
   void DoMathPowHalf(LUnaryMathOperation* instr);
   void DoMathLog(LUnaryMathOperation* instr);
   void DoMathCos(LUnaryMathOperation* instr);
   void DoMathSin(LUnaryMathOperation* instr);
 
   // Support for recording safepoint and position information.
   void RecordSafepoint(LPointerMap* pointers,
                        Safepoint::Kind kind,
                        int arguments,
-                       int deoptimization_index);
-  void RecordSafepoint(LPointerMap* pointers, int deoptimization_index);
-  void RecordSafepoint(int deoptimization_index);
+                       Safepoint::DeoptMode mode);
+  void RecordSafepoint(LPointerMap* pointers, Safepoint::DeoptMode mode);
+  void RecordSafepoint(Safepoint::DeoptMode mode);
   void RecordSafepointWithRegisters(LPointerMap* pointers,
                                     int arguments,
-                                    int deoptimization_index);
+                                    Safepoint::DeoptMode mode);
   void RecordPosition(int position);
-  int LastSafepointEnd() {
-    return static_cast<int>(safepoints_.GetPcAfterGap());
-  }
 
   static Condition TokenToCondition(Token::Value op, bool is_unsigned);
   void EmitGoto(int block);
   void EmitBranch(int left_block, int right_block, Condition cc);
   void EmitNumberUntagD(Register input,
                         XMMRegister result,
                         bool deoptimize_on_undefined,
                         LEnvironment* env);
 
   // Emits optimized code for typeof x == "y".  Modifies input register.
@@ skipping 25 matching lines @@
   void EmitPushTaggedOperand(LOperand* operand);
 
   struct JumpTableEntry {
     explicit inline JumpTableEntry(Address entry)
         : label(),
           address(entry) { }
     Label label;
     Address address;
   };
 
+  void EnsureSpaceForLazyDeopt();
+
   LChunk* const chunk_;
   MacroAssembler* const masm_;
   CompilationInfo* const info_;
 
   int current_block_;
   int current_instruction_;
   const ZoneList<LInstruction*>* instructions_;
   ZoneList<LEnvironment*> deoptimizations_;
   ZoneList<JumpTableEntry> jump_table_;
   ZoneList<Handle<Object> > deoptimization_literals_;
   int inlined_function_count_;
   Scope* const scope_;
   Status status_;
   TranslationBuffer translations_;
   ZoneList<LDeferredCode*> deferred_;
   int osr_pc_offset_;
+  int last_lazy_deopt_pc_;
 
   // Builder that keeps track of safepoints in the code. The table
   // itself is emitted at the end of the generated code.
   SafepointTableBuilder safepoints_;
 
   // Compiler from a set of parallel moves to a sequential list of moves.
   LGapResolver resolver_;
 
   Safepoint::Kind expected_safepoint_kind_;
 
@@ skipping 49 matching lines @@
   LCodeGen* codegen_;
   Label entry_;
   Label exit_;
   Label* external_exit_;
   int instruction_index_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_X64_LITHIUM_CODEGEN_X64_H_