[wasm] Implement I32x4ReplaceLane, I32x4Add, I32x4Sub.

src/compiler/wasm-compiler.cc

Index: src/compiler/wasm-compiler.cc
diff --git a/src/compiler/wasm-compiler.cc b/src/compiler/wasm-compiler.cc
index 45929b34dd846782097b260561047314ebde42df..a5d03bb90812359d2a77f008d8f2ad4730878308 100644
--- a/src/compiler/wasm-compiler.cc
+++ b/src/compiler/wasm-compiler.cc
@@ -3107,15 +3107,24 @@ Node* WasmGraphBuilder::SimdOp(wasm::WasmOpcode 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::kExprF32x4ExtractLane:
-      return graph()->NewNode(jsgraph()->machine()->Float32x4ExtractLane(),
-                              inputs[0], inputs[1]);
+    case wasm::kExprI32x4Sub:
+      return graph()->NewNode(jsgraph()->machine()->Int32x4Sub(), inputs[0],
+                              inputs[1]);
     case wasm::kExprF32x4Splat:
       return graph()->NewNode(jsgraph()->machine()->CreateFloat32x4(),
                               inputs[0], inputs[0], inputs[0], inputs[0]);
+    case wasm::kExprF32x4ExtractLane:
+      return graph()->NewNode(jsgraph()->machine()->Float32x4ExtractLane(),
+                              inputs[0], inputs[1]);
     case wasm::kExprF32x4Add:
       return graph()->NewNode(jsgraph()->machine()->Float32x4Add(), inputs[0],
                               inputs[1]);
@@ -3124,20 +3133,6 @@ Node* WasmGraphBuilder::SimdOp(wasm::WasmOpcode opcode,
   }
 }
 
-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));
-    case wasm::kExprF32x4ExtractLane:
-      return graph()->NewNode(jsgraph()->machine()->Float32x4ExtractLane(),
-                              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,