[crankshaft] Deoptimize if HHasInPrototypeChainAndBranch hits a proxy.

src/crankshaft/arm64/lithium-codegen-arm64.cc

 // Copyright 2013 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/crankshaft/arm64/lithium-codegen-arm64.h"
 
 #include "src/arm64/frames-arm64.h"
 #include "src/base/bits.h"
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
@@ skipping 2941 matching lines @@
   DCHECK(ToRegister(instr->right()).is(InstanceOfDescriptor::RightRegister()));
   DCHECK(ToRegister(instr->result()).is(x0));
   InstanceOfStub stub(isolate());
   CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr);
 }
 
 
 void LCodeGen::DoHasInPrototypeChainAndBranch(
     LHasInPrototypeChainAndBranch* instr) {
   Register const object = ToRegister(instr->object());
-  Register const object_map = ToRegister(instr->scratch());
+  Register const object_map = ToRegister(instr->scratch1());
+  Register const object_instance_type = ToRegister(instr->scratch2());
   Register const object_prototype = object_map;
   Register const prototype = ToRegister(instr->prototype());
 
   // The {object} must be a spec object.  It's sufficient to know that {object}
   // is not a smi, since all other non-spec objects have {null} prototypes and
   // will be ruled out below.
   if (instr->hydrogen()->ObjectNeedsSmiCheck()) {
     __ JumpIfSmi(object, instr->FalseLabel(chunk_));
   }
 
   // Loop through the {object}s prototype chain looking for the {prototype}.
   __ Ldr(object_map, FieldMemOperand(object, HeapObject::kMapOffset));
   Label loop;
   __ Bind(&loop);
+  __ CompareInstanceType(object_map, object_instance_type, JS_PROXY_TYPE);
+  DeoptimizeIf(eq, instr, Deoptimizer::kProxy);
   __ Ldr(object_prototype, FieldMemOperand(object_map, Map::kPrototypeOffset));
   __ Cmp(object_prototype, prototype);
   __ B(eq, instr->TrueLabel(chunk_));
   __ CompareRoot(object_prototype, Heap::kNullValueRootIndex);
   __ B(eq, instr->FalseLabel(chunk_));
   __ Ldr(object_map, FieldMemOperand(object_prototype, HeapObject::kMapOffset));
   __ B(&loop);
 }
 
 
@@ skipping 2885 matching lines @@
   Handle<ScopeInfo> scope_info = instr->scope_info();
   __ Push(scope_info);
   __ Push(ToRegister(instr->function()));
   CallRuntime(Runtime::kPushBlockContext, 2, instr);
   RecordSafepoint(Safepoint::kNoLazyDeopt);
 }
 
 
 }  // namespace internal
 }  // namespace v8