[interpreter] Put object in register for ToObject/ForInPrepare

src/compiler/bytecode-graph-builder.cc

Index: src/compiler/bytecode-graph-builder.cc
diff --git a/src/compiler/bytecode-graph-builder.cc b/src/compiler/bytecode-graph-builder.cc
index 4ec83f85d8123e03bb52162444c7e59a77ada2fa..ab320d504ace83eda0c1b7d4d4d60b409c0929b6 100644
--- a/src/compiler/bytecode-graph-builder.cc
+++ b/src/compiler/bytecode-graph-builder.cc
@@ -1340,27 +1340,23 @@ void BytecodeGraphBuilder::VisitTestInstanceOf() {
   BuildCompareOp(javascript()->InstanceOf());
 }
 
-void BytecodeGraphBuilder::VisitToName() {
+void BytecodeGraphBuilder::BuildCastOperator(const Operator* js_op) {
   FrameStateBeforeAndAfter states(this);
-  Node* value =
-      NewNode(javascript()->ToName(), environment()->LookupAccumulator());
+  Node* value = NewNode(js_op, environment()->LookupAccumulator());
   environment()->BindRegister(bytecode_iterator().GetRegisterOperand(0), value,
                               &states);
 }
 
+void BytecodeGraphBuilder::VisitToName() {
+  BuildCastOperator(javascript()->ToName());
+}
+
 void BytecodeGraphBuilder::VisitToObject() {
-  FrameStateBeforeAndAfter states(this);
-  Node* node =
-      NewNode(javascript()->ToObject(), environment()->LookupAccumulator());
-  environment()->BindAccumulator(node, &states);
+  BuildCastOperator(javascript()->ToObject());
 }
 
 void BytecodeGraphBuilder::VisitToNumber() {
-  FrameStateBeforeAndAfter states(this);
-  Node* value =
-      NewNode(javascript()->ToNumber(), environment()->LookupAccumulator());
-  environment()->BindRegister(bytecode_iterator().GetRegisterOperand(0), value,
-                              &states);
+  BuildCastOperator(javascript()->ToNumber());
 }
 
 void BytecodeGraphBuilder::VisitJump() { BuildJump(); }
@@ -1458,10 +1454,11 @@ DEBUG_BREAK_BYTECODE_LIST(DEBUG_BREAK);
 
 void BytecodeGraphBuilder::BuildForInPrepare() {
   FrameStateBeforeAndAfter states(this);
-  Node* receiver = environment()->LookupAccumulator();
+  Node* receiver =
+      environment()->LookupRegister(bytecode_iterator().GetRegisterOperand(0));
   Node* prepare = NewNode(javascript()->ForInPrepare(), receiver);
   environment()->BindRegistersToProjections(
-      bytecode_iterator().GetRegisterOperand(0), prepare, &states);
+      bytecode_iterator().GetRegisterOperand(1), prepare, &states);
 }
 
 void BytecodeGraphBuilder::VisitForInPrepare() { BuildForInPrepare(); }