[turbofan] Pass type information of arguments to EmitPrepareArguments.

src/compiler/instruction-selector.h

 // Copyright 2014 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.
 
 #ifndef V8_COMPILER_INSTRUCTION_SELECTOR_H_
 #define V8_COMPILER_INSTRUCTION_SELECTOR_H_
 
 #include <map>
 
 #include "src/compiler/common-operator.h"
@@ skipping 10 matching lines @@
 // Forward declarations.
 class BasicBlock;
 struct CallBuffer;  // TODO(bmeurer): Remove this.
 class FlagsContinuation;
 class Linkage;
 class OperandGenerator;
 struct SwitchInfo;
 
 typedef ZoneVector<InstructionOperand> InstructionOperandVector;
 
+// This struct connects nodes of parameters which are going to be pushed on the
+// call stack with their parameter index in the call descriptor of the callee.
+class PushParameter {
+ public:
+  PushParameter() : node_(nullptr), parameter_index_(0) {}
+  PushParameter(Node* node, size_t parameter_index)
+      : node_(node), parameter_index_(parameter_index) {}
+
+  Node* node() const { return node_; }
+  size_t parameter_index() const { return parameter_index_; }
+
+ private:
+  Node* node_;
+  size_t parameter_index_;
+};
 
 // Instruction selection generates an InstructionSequence for a given Schedule.
 class InstructionSelector final {
  public:
   // Forward declarations.
   class Features;
 
   enum SourcePositionMode { kCallSourcePositions, kAllSourcePositions };
 
   InstructionSelector(
@@ skipping 185 matching lines @@
   void VisitConstant(Node* node);
   void VisitCall(Node* call, BasicBlock* handler = nullptr);
   void VisitTailCall(Node* call);
   void VisitGoto(BasicBlock* target);
   void VisitBranch(Node* input, BasicBlock* tbranch, BasicBlock* fbranch);
   void VisitSwitch(Node* node, const SwitchInfo& sw);
   void VisitDeoptimize(DeoptimizeKind kind, Node* value);
   void VisitReturn(Node* ret);
   void VisitThrow(Node* value);
 
-  void EmitPrepareArguments(NodeVector* arguments,
+  void EmitPrepareArguments(ZoneVector<compiler::PushParameter>* arguments,
                             const CallDescriptor* descriptor, Node* node);
 
   // ===========================================================================
 
   Schedule* schedule() const { return schedule_; }
   Linkage* linkage() const { return linkage_; }
   InstructionSequence* sequence() const { return sequence_; }
   Zone* instruction_zone() const { return sequence()->zone(); }
   Zone* zone() const { return zone_; }
 
@@ skipping 12 matching lines @@
   BoolVector used_;
   IntVector virtual_registers_;
   InstructionScheduler* scheduler_;
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_INSTRUCTION_SELECTOR_H_