work

src/wasm/wasm-binary.cpp

@@ -3802,8 +3802,7 @@ Result<> WasmBinaryReader::readInst() {
         case BinaryConsts::ArrayAtomicRMWCmpxchg: {
           auto order = getMemoryOrder(true);
           auto type = getIndexedHeapType();
-          auto field = getU32LEB();
-          return builder.makeArrayCmpxchg(type, field, order);
+          return builder.makeArrayCmpxchg(type, order);
         }
       }
       return Err{"unknown atomic operation " + std::to_string(op)};

src/wasm/wasm-ir-builder.cpp

@@ -2397,7 +2397,7 @@ Result<> IRBuilder::makeArrayCmpxchg(HeapType type, MemoryOrder order) {
   CHECK_ERR(ChildPopper{*this}.visitArrayCmpxchg(&curr, type));
   CHECK_ERR(validateTypeAnnotation(type, curr.ref));
   push(builder.makeArrayCmpxchg(
-    field, curr.ref, curr.ref, curr.expected, curr.replacement, order));
+    curr.ref, curr.ref, curr.expected, curr.replacement, order));
   return Ok{};
 }