[Interpreter] Collect type feedback for 'new' in the bytecode handler

src/builtins/x64/builtins-x64.cc

 // 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.
 
 #if V8_TARGET_ARCH_X64
 
 #include "src/code-factory.h"
 #include "src/codegen.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 822 matching lines @@
             RelocInfo::CODE_TARGET);
   } else {
     DCHECK_EQ(function_type, CallableType::kAny);
     __ Jump(masm->isolate()->builtins()->Call(ConvertReceiverMode::kAny,
                                               tail_call_mode),
             RelocInfo::CODE_TARGET);
   }
 }
 
 // static
-void Builtins::Generate_InterpreterPushArgsAndConstruct(MacroAssembler* masm) {
+void Builtins::Generate_InterpreterPushArgsAndConstructImpl(
+    MacroAssembler* masm, CallableType construct_type) {
   // ----------- S t a t e -------------
   //  -- rax : the number of arguments (not including the receiver)
   //  -- rdx : the new target (either the same as the constructor or
   //           the JSFunction on which new was invoked initially)
   //  -- rdi : the constructor to call (can be any Object)
   //  -- rbx : the address of the first argument to be pushed. Subsequent
   //           arguments should be consecutive above this, in the same order as
   //           they are to be pushed onto the stack.
   // -----------------------------------
 
   // Pop return address to allow tail-call after pushing arguments.
   __ PopReturnAddressTo(kScratchRegister);
 
   // Push slot for the receiver to be constructed.
   __ Push(Immediate(0));
 
   Generate_InterpreterPushArgs(masm, false);
 
   // Push return address in preparation for the tail-call.
   __ PushReturnAddressFrom(kScratchRegister);
 
-  // Call the constructor (rax, rdx, rdi passed on).
-  __ Jump(masm->isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET);
+  if (construct_type == CallableType::kJSFunction) {
+    // TODO(mythria): Change this when allocation site feedback is available.
+    // ConstructFunction initializes allocation site to undefined.
+    __ Jump(masm->isolate()->builtins()->ConstructFunction(),
+            RelocInfo::CODE_TARGET);
+  } else {
+    DCHECK_EQ(construct_type, CallableType::kAny);
+    // Call the constructor (rax, rdx, rdi passed on).
+    __ Jump(masm->isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET);
+  }
 }
 
 void Builtins::Generate_InterpreterEnterBytecodeDispatch(MacroAssembler* masm) {
   // Set the return address to the correct point in the interpreter entry
   // trampoline.
   Smi* interpreter_entry_return_pc_offset(
       masm->isolate()->heap()->interpreter_entry_return_pc_offset());
   DCHECK_NE(interpreter_entry_return_pc_offset, Smi::FromInt(0));
   __ Move(rbx, masm->isolate()->builtins()->InterpreterEntryTrampoline());
   __ addp(rbx, Immediate(interpreter_entry_return_pc_offset->value() +
@@ skipping 2170 matching lines @@
   // And "return" to the OSR entry point of the function.
   __ ret(0);
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X64