Optimize instanceof further...

src/ia32/lithium-ia32.h

 // Copyright 2010 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 45 matching lines @@
 //     LBitI
 //     LBoundsCheck
 //     LCmpID
 //     LCmpIDAndBranch
 //     LCmpJSObjectEq
 //     LCmpJSObjectEqAndBranch
 //     LCmpT
 //     LDivI
 //     LInstanceOf
 //     LInstanceOfAndBranch
+//     LInstanceOfKnownGlobal
 //     LLoadKeyedFastElement
 //     LLoadKeyedGeneric
 //     LModI
 //     LMulI
 //     LPower
 //     LShiftI
 //     LSubI
 //   LCallConstantFunction
 //   LCallFunction
 //   LCallGlobal
@@ skipping 122 matching lines @@
   V(Deoptimize)                                 \
   V(DivI)                                       \
   V(DoubleToI)                                  \
   V(FunctionLiteral)                            \
   V(Gap)                                        \
   V(GlobalObject)                               \
   V(GlobalReceiver)                             \
   V(Goto)                                       \
   V(InstanceOf)                                 \
   V(InstanceOfAndBranch)                        \
+  V(InstanceOfKnownGlobal)                      \
   V(Integer32ToDouble)                          \
   V(IsNull)                                     \
   V(IsNullAndBranch)                            \
   V(IsObject)                                   \
   V(IsObjectAndBranch)                          \
   V(IsSmi)                                      \
   V(IsSmiAndBranch)                             \
   V(HasInstanceType)                            \
   V(HasInstanceTypeAndBranch)                   \
   V(HasCachedArrayIndex)                        \
@@ skipping 747 matching lines @@
 
   DECLARE_CONCRETE_INSTRUCTION(CmpTAndBranch, "cmp-t-and-branch")
 
   int true_block_id() const { return true_block_id_; }
   int false_block_id() const { return false_block_id_; }
 
  private:
   int true_block_id_;
   int false_block_id_;
 };
 

[Mads Ager (chromium), 2011/01/04 17:25:58]

Accidental edit?

[Søren Thygesen Gjesse, 2011/01/05 09:28:00]

Done.

-
 class LInstanceOf: public LBinaryOperation {
  public:
   LInstanceOf(LOperand* left, LOperand* right)
       : LBinaryOperation(left, right) { }
 
   DECLARE_CONCRETE_INSTRUCTION(InstanceOf, "instance-of")
 };
 
 
 class LInstanceOfAndBranch: public LInstanceOf {
@@ skipping 10 matching lines @@
 
   int true_block_id() const { return true_block_id_; }
   int false_block_id() const { return false_block_id_; }
 
  private:
   int true_block_id_;
   int false_block_id_;
 };
 
 
+class LInstanceOfKnownGlobal: public LUnaryOperation {
+ public:
+  LInstanceOfKnownGlobal(LOperand* left, LOperand* temp)
+      : LUnaryOperation(left), temp_(temp) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(InstanceOfKnownGlobal,
+                               "instance-of-known-global")
+  DECLARE_HYDROGEN_ACCESSOR(InstanceOfKnownGlobal)
+
+  Handle<JSFunction> function() const { return hydrogen()->function(); }
+  LOperand* temp() const { return temp_; }
+
+ private:
+  LOperand* temp_;
+};
+
+
 class LBoundsCheck: public LBinaryOperation {
  public:
   LBoundsCheck(LOperand* index, LOperand* length)
       : LBinaryOperation(index, length) { }
 
   LOperand* index() const { return left(); }
   LOperand* length() const { return right(); }
 
   DECLARE_CONCRETE_INSTRUCTION(BoundsCheck, "bounds-check")
 };
@@ skipping 1056 matching lines @@
 
   enum CanDeoptimize { CAN_DEOPTIMIZE_EAGERLY, CANNOT_DEOPTIMIZE_EAGERLY };
 
   // By default we assume that instruction sequences generated for calls
   // cannot deoptimize eagerly and we do not attach environment to this
   // instruction.
   LInstruction* MarkAsCall(
       LInstruction* instr,
       HInstruction* hinstr,
       CanDeoptimize can_deoptimize = CANNOT_DEOPTIMIZE_EAGERLY);
+  LInstruction* MarkAsSaveDoubles(LInstruction* instr);
 
   LInstruction* SetInstructionPendingDeoptimizationEnvironment(
       LInstruction* instr, int ast_id);
   void ClearInstructionPendingDeoptimizationEnvironment();
 
   LEnvironment* CreateEnvironment(HEnvironment* hydrogen_env);
 
   // Temporary operand that may be a memory location.
   LOperand* Temp();
   // Temporary operand that must be in a register.
@@ skipping 26 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(LChunkBuilder);
 };
 
 #undef DECLARE_HYDROGEN_ACCESSOR
 #undef DECLARE_INSTRUCTION
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_IA32_LITHIUM_IA32_H_