[wasm] Add native x64 implementations for I32x4Splat, I32x4ExtractLane

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 210 matching lines @@
   }
   void MarkAsWord64(Node* node) {
     MarkAsRepresentation(MachineRepresentation::kWord64, node);
   }
   void MarkAsFloat32(Node* node) {
     MarkAsRepresentation(MachineRepresentation::kFloat32, node);
   }
   void MarkAsFloat64(Node* node) {
     MarkAsRepresentation(MachineRepresentation::kFloat64, node);
   }
+  void MarkAsSimd128(Node* node) {
+    MarkAsRepresentation(MachineRepresentation::kSimd128, node);
+  }
   void MarkAsReference(Node* node) {
     MarkAsRepresentation(MachineRepresentation::kTagged, node);
   }
 
   // Inform the register allocation of the representation of the unallocated
   // operand {op}.
   void MarkAsRepresentation(MachineRepresentation rep,
                             const InstructionOperand& op);
 
   enum CallBufferFlag {
@@ skipping 28 matching lines @@
 
   // Visit the node and generate code, if any.
   void VisitNode(Node* node);
 
   // Visit the node and generate code for IEEE 754 functions.
   void VisitFloat64Ieee754Binop(Node*, InstructionCode code);
   void VisitFloat64Ieee754Unop(Node*, InstructionCode code);
 
 #define DECLARE_GENERATOR(x) void Visit##x(Node* node);
   MACHINE_OP_LIST(DECLARE_GENERATOR)
+  MACHINE_SIMD_RETURN_NUM_OP_LIST(DECLARE_GENERATOR)
+  MACHINE_SIMD_RETURN_SIMD_OP_LIST(DECLARE_GENERATOR)
 #undef DECLARE_GENERATOR
 
   void VisitFinishRegion(Node* node);
   void VisitParameter(Node* node);
   void VisitIfException(Node* node);
   void VisitOsrValue(Node* node);
   void VisitPhi(Node* node);
   void VisitProjection(Node* node);
   void VisitConstant(Node* node);
   void VisitCall(Node* call, BasicBlock* handler = nullptr);
@@ skipping 40 matching lines @@
   IntVector virtual_registers_;
   InstructionScheduler* scheduler_;
   Frame* frame_;
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_INSTRUCTION_SELECTOR_H_