Emit mementos in crankshaft.

src/ia32/lithium-codegen-ia32.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.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_IA32
 
 #include "src/ia32/lithium-codegen-ia32.h"
 #include "src/ic.h"
@@ skipping 3857 matching lines @@
   CallFunctionStub stub(isolate(), arity, instr->hydrogen()->function_flags());
   CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr);
 }
 
 
 void LCodeGen::DoCallNew(LCallNew* instr) {
   ASSERT(ToRegister(instr->context()).is(esi));
   ASSERT(ToRegister(instr->constructor()).is(edi));
   ASSERT(ToRegister(instr->result()).is(eax));
 
-  // No cell in ebx for construct type feedback in optimized code
-  __ mov(ebx, isolate()->factory()->undefined_value());
+  HAllocationMode* mode = instr->hydrogen()->allocation_mode();
+  bool create_mementos = mode->CreateAllocationMementos();
+  if (create_mementos) {
+    __ mov(ebx, mode->feedback_site());
+  } else {
+    __ mov(ebx, isolate()->factory()->undefined_value());
+  }
   CallConstructStub stub(isolate(), NO_CALL_CONSTRUCTOR_FLAGS);
   __ Move(eax, Immediate(instr->arity()));
   CallCode(stub.GetCode(), RelocInfo::CONSTRUCT_CALL, instr);
 }
 
 
 void LCodeGen::DoCallNewArray(LCallNewArray* instr) {
   ASSERT(ToRegister(instr->context()).is(esi));
   ASSERT(ToRegister(instr->constructor()).is(edi));
   ASSERT(ToRegister(instr->result()).is(eax));
 
   __ Move(eax, Immediate(instr->arity()));
-  __ mov(ebx, isolate()->factory()->undefined_value());
+  HAllocationMode* mode = instr->hydrogen()->allocation_mode();
+  bool create_mementos = mode->CreateAllocationMementos();
+  if (create_mementos) {
+    __ mov(ebx, mode->feedback_site());
+  } else {
+    __ mov(ebx, isolate()->factory()->undefined_value());
+  }
   ElementsKind kind = instr->hydrogen()->elements_kind();
   AllocationSiteOverrideMode override_mode =
-      (AllocationSite::GetMode(kind) == TRACK_ALLOCATION_SITE)
+      (!create_mementos &&
+       AllocationSite::GetMode(kind) == TRACK_ALLOCATION_SITE)
           ? DISABLE_ALLOCATION_SITES
           : DONT_OVERRIDE;
 
   if (instr->arity() == 0) {
     ArrayNoArgumentConstructorStub stub(isolate(), kind, override_mode);
     CallCode(stub.GetCode(), RelocInfo::CONSTRUCT_CALL, instr);
   } else if (instr->arity() == 1) {
     Label done;
     if (IsFastPackedElementsKind(kind)) {
       Label packed_case;
@@ skipping 1736 matching lines @@
   __ bind(deferred->exit());
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32