X87: [builtins] Sanitize the machinery around Construct calls.

src/crankshaft/x87/lithium-x87.h

 // Copyright 2012 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_CRANKSHAFT_X87_LITHIUM_X87_H_
 #define V8_CRANKSHAFT_X87_LITHIUM_X87_H_
 
 #include "src/crankshaft/hydrogen.h"
 #include "src/crankshaft/lithium.h"
 #include "src/crankshaft/lithium-allocator.h"
@@ skipping 19 matching lines @@
   V(ArgumentsElements)                       \
   V(ArgumentsLength)                         \
   V(ArithmeticD)                             \
   V(ArithmeticT)                             \
   V(BitI)                                    \
   V(BoundsCheck)                             \
   V(Branch)                                  \
   V(CallJSFunction)                          \
   V(CallWithDescriptor)                      \
   V(CallFunction)                            \
-  V(CallNew)                                 \
   V(CallNewArray)                            \
   V(CallRuntime)                             \
   V(CallStub)                                \
   V(CheckArrayBufferNotNeutered)             \
   V(CheckInstanceType)                       \
   V(CheckMaps)                               \
   V(CheckMapValue)                           \
   V(CheckNonSmi)                             \
   V(CheckSmi)                                \
   V(CheckValue)                              \
@@ skipping 1856 matching lines @@
   LOperand* temp_vector() { return temps_[1]; }
 
   DECLARE_CONCRETE_INSTRUCTION(CallFunction, "call-function")
   DECLARE_HYDROGEN_ACCESSOR(CallFunction)
 
   void PrintDataTo(StringStream* stream) override;
   int arity() const { return hydrogen()->argument_count() - 1; }
 };
 
 
-class LCallNew final : public LTemplateInstruction<1, 2, 0> {
- public:
-  LCallNew(LOperand* context, LOperand* constructor) {
-    inputs_[0] = context;
-    inputs_[1] = constructor;
-  }
-
-  LOperand* context() { return inputs_[0]; }
-  LOperand* constructor() { return inputs_[1]; }
-
-  DECLARE_CONCRETE_INSTRUCTION(CallNew, "call-new")
-  DECLARE_HYDROGEN_ACCESSOR(CallNew)
-
-  void PrintDataTo(StringStream* stream) override;
-
-  int arity() const { return hydrogen()->argument_count() - 1; }
-};
-
-
 class LCallNewArray final : public LTemplateInstruction<1, 2, 0> {
  public:
   LCallNewArray(LOperand* context, LOperand* constructor) {
     inputs_[0] = context;
     inputs_[1] = constructor;
   }
 
   LOperand* context() { return inputs_[0]; }
   LOperand* constructor() { return inputs_[1]; }
 
@@ skipping 908 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(LChunkBuilder);
 };
 
 #undef DECLARE_HYDROGEN_ACCESSOR
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CRANKSHAFT_X87_LITHIUM_X87_H_