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Description
Description
In this PR, some initializers will be stored as in-memory external data during graph transformation.
In the WebNN EP, it doesn't handle the in-memory external data, this will cause error (External mounted files are not available.) when it tries to register such initializers (in memory external data) to WebNN constant at here.
if (utils::HasExternalData(tensor)) {
// Create WebNN Constant from external data.
std::basic_string<ORTCHAR_T> external_file_path;
onnxruntime::FileOffsetType data_offset;
SafeInt<size_t> tensor_byte_size;
ORT_RETURN_IF_ERROR(utils::GetExternalDataInfo(
tensor, graph_viewer_.ModelPath(), external_file_path, data_offset, tensor_byte_size));
auto webnnRegisterMLConstant = emscripten::val::module_property("webnnRegisterMLConstant");
operand = webnnRegisterMLConstant(emscripten::val(external_file_path),
static_cast<int32_t>(data_offset),
static_cast<int32_t>(tensor_byte_size),
wnn_builder,
desc,
should_convert_int64_to_int32);