[turbofan] Add MachineType to Phi.

src/compiler/change-lowering.cc

Index: src/compiler/change-lowering.cc
diff --git a/src/compiler/change-lowering.cc b/src/compiler/change-lowering.cc
index e9fd7400d03a6933a37d103c376099cb8067abbe..27d8222475140dd52c4623e62ec91e83c405b846 100644
--- a/src/compiler/change-lowering.cc
+++ b/src/compiler/change-lowering.cc
@@ -111,8 +111,8 @@ Reduction ChangeLowering::ChangeBitToBool(Node* val, Node* control) {
   Node* false_value = jsgraph()->FalseConstant();
 
   Node* merge = graph()->NewNode(common()->Merge(2), if_true, if_false);
-  Node* phi =
-      graph()->NewNode(common()->Phi(2), true_value, false_value, merge);
+  Node* phi = graph()->NewNode(common()->Phi(kMachAnyTagged, 2), true_value,

[titzer, 2014/09/05 10:26:08]

kTypeBool | kRepTagged

... not that it matters that much, but better to document it now.

[Benedikt Meurer, 2014/09/05 10:50:49]

Done.

+                               false_value, merge);
 
   return Replace(phi);
 }
@@ -150,7 +150,8 @@ Reduction ChangeLowering::ChangeInt32ToTagged(Node* val, Node* control) {
   Node* smi = graph()->NewNode(common()->Projection(0), add);
 
   Node* merge = graph()->NewNode(common()->Merge(2), if_true, if_false);
-  Node* phi = graph()->NewNode(common()->Phi(2), heap_number, smi, merge);
+  Node* phi = graph()->NewNode(common()->Phi(kMachAnyTagged, 2), heap_number,
+                               smi, merge);
 
   return Replace(phi);
 }
@@ -174,7 +175,9 @@ Reduction ChangeLowering::ChangeTaggedToUI32(Node* val, Node* control,
   Node* number = ChangeSmiToInt32(val);
 
   Node* merge = graph()->NewNode(common()->Merge(2), if_true, if_false);
-  Node* phi = graph()->NewNode(common()->Phi(2), change, number, merge);
+  Node* phi = graph()->NewNode(
+      common()->Phi((signedness == kSigned) ? kMachInt32 : kMachUint32, 2),
+      change, number, merge);
 
   return Replace(phi);
 }
@@ -196,7 +199,8 @@ Reduction ChangeLowering::ChangeTaggedToFloat64(Node* val, Node* control) {
                                   ChangeSmiToInt32(val));
 
   Node* merge = graph()->NewNode(common()->Merge(2), if_true, if_false);
-  Node* phi = graph()->NewNode(common()->Phi(2), load, number, merge);
+  Node* phi =
+      graph()->NewNode(common()->Phi(kMachFloat64, 2), load, number, merge);
 
   return Replace(phi);
 }
@@ -223,7 +227,8 @@ Reduction ChangeLowering::ChangeUint32ToTagged(Node* val, Node* control) {
       graph()->NewNode(machine()->ChangeUint32ToFloat64(), val), if_false);
 
   Node* merge = graph()->NewNode(common()->Merge(2), if_true, if_false);
-  Node* phi = graph()->NewNode(common()->Phi(2), smi, heap_number, merge);
+  Node* phi = graph()->NewNode(common()->Phi(kMachAnyTagged, 2), smi,
+                               heap_number, merge);
 
   return Replace(phi);
 }