[turbofan] Typer changes to avoid Type representation dimension

src/compiler/js-typed-lowering.cc

Index: src/compiler/js-typed-lowering.cc
diff --git a/src/compiler/js-typed-lowering.cc b/src/compiler/js-typed-lowering.cc
index f1b82fa767d916e954c953bb18ca7cb8e883da51..4c80fc6d438428ed38ee59a429bcf1f08891d587 100644
--- a/src/compiler/js-typed-lowering.cc
+++ b/src/compiler/js-typed-lowering.cc
@@ -979,8 +979,8 @@ Reduction JSTypedLowering::ReduceJSToObject(Node* node) {
   node->ReplaceInput(1, rfalse);
   node->ReplaceInput(2, control);
   node->TrimInputCount(3);
-  NodeProperties::ChangeOp(node,
-                           common()->Phi(MachineRepresentation::kTagged, 2));
+  NodeProperties::ChangeOp(

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

per current contract, this would be ignored.

+      node, common()->Phi(MachineRepresentation::kTaggedPointer, 2));
   return Changed(node);
 }
 
@@ -1186,8 +1186,9 @@ Reduction JSTypedLowering::ReduceJSInstanceOf(Node* node) {
   Node* loop = control = graph()->NewNode(common()->Loop(2), control, control);
   Node* eloop = effect =
       graph()->NewNode(common()->EffectPhi(2), effect, effect, loop);
-  Node* vloop = object = graph()->NewNode(
-      common()->Phi(MachineRepresentation::kTagged, 2), object, object, loop);
+  Node* vloop = object =
+      graph()->NewNode(common()->Phi(MachineRepresentation::kTaggedPointer, 2),
+                       object, object, loop);
   // TODO(jarin): This is a very ugly hack to work-around the super-smart
   // implicit typing of the Phi, which goes completely nuts if the {object}
   // is for example a HeapConstant.
@@ -1284,8 +1285,8 @@ Reduction JSTypedLowering::ReduceJSInstanceOf(Node* node) {
   node->ReplaceInput(4, vfalse1);
   node->ReplaceInput(5, control);
   node->TrimInputCount(6);
-  NodeProperties::ChangeOp(node,
-                           common()->Phi(MachineRepresentation::kTagged, 5));
+  NodeProperties::ChangeOp(
+      node, common()->Phi(MachineRepresentation::kTaggedPointer, 5));
   return Changed(node);
 }
 
@@ -1402,8 +1403,8 @@ Reduction JSTypedLowering::ReduceJSConvertReceiver(Node* node) {
     node->ReplaceInput(1, rfalse);
     node->ReplaceInput(2, control);
     node->TrimInputCount(3);
-    NodeProperties::ChangeOp(node,
-                             common()->Phi(MachineRepresentation::kTagged, 2));
+    NodeProperties::ChangeOp(
+        node, common()->Phi(MachineRepresentation::kTaggedPointer, 2));
     return Changed(node);
   }
 
@@ -1823,8 +1824,8 @@ Reduction JSTypedLowering::ReduceJSForInNext(Node* node) {
   node->ReplaceInput(1, vfalse0);
   node->ReplaceInput(2, control);
   node->TrimInputCount(3);
-  NodeProperties::ChangeOp(node,
-                           common()->Phi(MachineRepresentation::kTagged, 2));
+  NodeProperties::ChangeOp(
+      node, common()->Phi(MachineRepresentation::kTaggedPointer, 2));
   return Changed(node);
 }