[WASM SIMD] Implement primitive shuffles.

src/compiler/wasm-compiler.h

 // Copyright 2015 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_WASM_COMPILER_H_
 #define V8_COMPILER_WASM_COMPILER_H_
 
 #include <memory>
 
 // Clients of this interface shouldn't depend on lots of compiler internals.
@@ skipping 234 matching lines @@
   Node* S1x16Zero();
 
   Node* SimdOp(wasm::WasmOpcode opcode, const NodeVector& inputs);
 
   Node* SimdLaneOp(wasm::WasmOpcode opcode, uint8_t lane,
                    const NodeVector& inputs);
 
   Node* SimdShiftOp(wasm::WasmOpcode opcode, uint8_t shift,
                     const NodeVector& inputs);
 
-  Node* SimdSwizzleOp(wasm::WasmOpcode opcode, uint32_t swizzle,
-                      const NodeVector& inputs);
+  Node* SimdConcatOp(uint8_t bytes, const NodeVector& inputs);
 
   bool has_simd() const { return has_simd_; }
 
   wasm::ModuleEnv* module_env() const { return module_; }
 
  private:
   static const int kDefaultBufferSize = 16;
   friend class WasmTrapHelper;
 
   Zone* zone_;
@@ skipping 134 matching lines @@
   }
 
   int AddParameterNodes(Node** args, int pos, int param_count,
                         wasm::FunctionSig* sig);
 };
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_WASM_COMPILER_H_