[turbofan] Typer changes to avoid Type representation dimension

src/compiler/js-create-lowering.cc

 // Copyright 2016 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/compiler/js-create-lowering.h"
 
 #include "src/allocation-site-scopes.h"
 #include "src/code-factory.h"
 #include "src/compilation-dependencies.h"
 #include "src/compiler/access-builder.h"
@@ skipping 599 matching lines @@
                         if_not_equal};
 
       call_packed =
           graph()->NewNode(common()->Call(desc), arraysize(inputs), inputs);
       if_success_packed = graph()->NewNode(common()->IfSuccess(), call_packed);
     }
     Node* merge = graph()->NewNode(common()->Merge(2), if_success_holey,
                                    if_success_packed);
     Node* effect_phi = graph()->NewNode(common()->EffectPhi(2), call_holey,
                                         call_packed, merge);
-    Node* phi =
-        graph()->NewNode(common()->Phi(MachineRepresentation::kTagged, 2),
-                         call_holey, call_packed, merge);
+    Node* phi = graph()->NewNode(
+        common()->Phi(MachineRepresentation::kTaggedPointer, 2), call_holey,

[mvstanton, 2016/09/13 13:03:54]

don't bother it is ignored, "current contract" is tagged.

+        call_packed, merge);
 
     ReplaceWithValue(node, phi, effect_phi, merge);
     return Changed(node);
   }
 
   DCHECK(arity > 1);
   ArrayNArgumentsConstructorStub stub(isolate());
   CallDescriptor* desc = Linkage::GetStubCallDescriptor(
       isolate(), graph()->zone(), stub.GetCallInterfaceDescriptor(), arity + 1,
       CallDescriptor::kNeedsFrameState);
@@ skipping 656 matching lines @@
   return jsgraph()->simplified();
 }
 
 MachineOperatorBuilder* JSCreateLowering::machine() const {
   return jsgraph()->machine();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8