[wasm] implement simd lowering for replaceLane, load, store and test for phi

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 59c9990e7d7e7e2a6837faf086e4e700bc384d13..ce872b4b8570d59978d22a85f0795d05c6e67d73 100644
--- a/src/compiler/wasm-compiler.cc
+++ b/src/compiler/wasm-compiler.cc
@@ -3103,9 +3103,6 @@ Node* WasmGraphBuilder::SimdOp(wasm::WasmOpcode opcode,
     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::kExprF32x4Splat:
       return graph()->NewNode(jsgraph()->machine()->CreateFloat32x4(),
                               inputs[0], inputs[0], inputs[0], inputs[0]);
@@ -3131,6 +3128,20 @@ Node* WasmGraphBuilder::SimdExtractLane(wasm::WasmOpcode opcode, uint8_t lane,
   }
 }
 
+Node* WasmGraphBuilder::SimdReplaceLane(wasm::WasmOpcode opcode, uint8_t lane,
+                                        Node* input, Node* replacement) {
+  switch (opcode) {
+    case wasm::kExprI32x4ReplaceLane:
+      return graph()->NewNode(jsgraph()->machine()->Int32x4ReplaceLane(), input,
+                              Int32Constant(lane), replacement);
+    case wasm::kExprF32x4ReplaceLane:
+      return graph()->NewNode(jsgraph()->machine()->Float32x4ReplaceLane(),
+                              input, Int32Constant(lane), replacement);
+    default:
+      return graph()->NewNode(UnsupportedOpcode(opcode), nullptr);
+  }
+}
+
 static void RecordFunctionCompilation(CodeEventListener::LogEventsAndTags tag,
                                       Isolate* isolate, Handle<Code> code,
                                       const char* message, uint32_t index,