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

src/builtins/mips64/builtins-mips64.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_MIPS64
 
 #include "src/codegen.h"
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 1172 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 -------------
   // -- a0 : argument count (not including receiver)
   // -- a3 : new target
   // -- a1 : constructor to call
-  // -- a2 : address of the first argument
+  // -- a2 : allocation site feedback if available, undefined otherwise.
+  // -- a4 : address of the first argument
   // -----------------------------------
 
   // Find the address of the last argument.
   __ dsll(t0, a0, kPointerSizeLog2);
-  __ Dsubu(t0, a2, Operand(t0));
+  __ Dsubu(t0, a4, Operand(t0));
 
   // Push a slot for the receiver.
   __ push(zero_reg);
 
   // Push the arguments.
   Label loop_header, loop_check;
   __ Branch(&loop_check);
   __ bind(&loop_header);
-  __ ld(t1, MemOperand(a2));
-  __ Daddu(a2, a2, Operand(-kPointerSize));
+  __ ld(t1, MemOperand(a4));
+  __ Daddu(a4, a4, Operand(-kPointerSize));
   __ push(t1);
   __ bind(&loop_check);
-  __ Branch(&loop_header, gt, a2, Operand(t0));
+  __ Branch(&loop_header, gt, a4, Operand(t0));
 
-  // Call the constructor with a0, a1, and a3 unmodified.
-  __ Jump(masm->isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET);
+  __ AssertUndefinedOrAllocationSite(a2, t0);
+  if (construct_type == CallableType::kJSFunction) {
+    __ AssertFunction(a1);
+
+    // Tail call to the function-specific construct stub (still in the caller
+    // context at this point).
+    __ ld(a4, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset));
+    __ ld(a4, FieldMemOperand(a4, SharedFunctionInfo::kConstructStubOffset));
+    __ Daddu(at, a4, Operand(Code::kHeaderSize - kHeapObjectTag));
+    __ Jump(at);
+  } else {
+    DCHECK_EQ(construct_type, CallableType::kAny);
+    // Call the constructor with a0, a1, and a3 unmodified.
+    __ 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));
   __ li(t0, Operand(masm->isolate()->builtins()->InterpreterEntryTrampoline()));
   __ Daddu(ra, t0, Operand(interpreter_entry_return_pc_offset->value() +
@@ skipping 1767 matching lines @@
     __ break_(0xCC);
   }
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS64