message: Temporarily disable batchnorm elaboration until we have finished
  profiling
diff: @@ -274,7 +274,7 @@ StatusOr<std::unique_ptr<Executable>> PoplarCompiler::RunBackend(
  module.get());
  {
  HloPassPipeline pipeline("IPU");
  - pipeline.AddPass<BatchNormExpander>(true, false, true);
  + pipeline.AddPass<BatchNormExpander>(true, true, true);
  pipeline.AddPass<GatherExpander>();
  pipeline.AddPass<ScatterExpander>();
  pipeline.AddPass<DotDecomposer>();
  