[wasm] Implement I32x4ReplaceLane, I32x4Add, I32x4Sub.

src/compiler/wasm-compiler.cc

 // 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.
 
 #include "src/compiler/wasm-compiler.h"
 
 #include <memory>
 
 #include "src/isolate-inl.h"
 
@@ skipping 3001 matching lines @@
                           Int32Constant(0), Int32Constant(0), Int32Constant(0),
                           Int32Constant(0));
 }
 
 Node* WasmGraphBuilder::SimdOp(wasm::WasmOpcode opcode,
                                const NodeVector& inputs) {
   switch (opcode) {
     case wasm::kExprI32x4Splat:
       return graph()->NewNode(jsgraph()->machine()->CreateInt32x4(), inputs[0],
                               inputs[0], inputs[0], inputs[0]);
+    case wasm::kExprI32x4ExtractLane:
+      return graph()->NewNode(jsgraph()->machine()->Int32x4ExtractLane(),
+                              inputs[0], inputs[1]);
+    case wasm::kExprI32x4ReplaceLane:
+      return graph()->NewNode(jsgraph()->machine()->Int32x4ReplaceLane(),
+                              inputs[0], inputs[1], inputs[2]);
+    case wasm::kExprI32x4Add:
+      return graph()->NewNode(jsgraph()->machine()->Int32x4Add(), inputs[0],
+                              inputs[1]);
+    case wasm::kExprI32x4Sub:
+      return graph()->NewNode(jsgraph()->machine()->Int32x4Sub(), inputs[0],
+                              inputs[1]);
     default:
       return graph()->NewNode(UnsupportedOpcode(opcode), nullptr);
   }
-}
-
-Node* WasmGraphBuilder::SimdExtractLane(wasm::WasmOpcode opcode, uint8_t lane,
-                                        Node* input) {
-  switch (opcode) {
-    case wasm::kExprI32x4ExtractLane:
-      return graph()->NewNode(jsgraph()->machine()->Int32x4ExtractLane(), input,
-                              Int32Constant(lane));
-    default:
-      return graph()->NewNode(UnsupportedOpcode(opcode), nullptr);
-  }
 }
 
 static void RecordFunctionCompilation(CodeEventListener::LogEventsAndTags tag,
                                       Isolate* isolate, Handle<Code> code,
                                       const char* message, uint32_t index,
                                       const wasm::WasmName& module_name,
                                       const wasm::WasmName& func_name) {
   DCHECK(isolate->logger()->is_logging_code_events() ||
          isolate->is_profiling());
 
@@ skipping 337 matching lines @@
                             function_->code_start_offset),
            compile_ms);
   }
 
   return code;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8