Function op

deps/v8/test/mjsunit/wasm/memory64.js:25–27

(non_atomic, atomic)

  // A memory operation with alignment (2) and offset (0).
  let op = (non_atomic, atomic) => use_atomic_ops ?
      [kAtomicPrefix, atomic, 2, 0] :
      [non_atomic, 2, 0];
  builder.addFunction('load', makeSig([kWasmF64], [kWasmI32]))
      .addBody([
        kExprLocalGet, 0,                           // local.get 0