| function(tf_get_absolute_path path base final_path) |
| if (IS_ABSOLUTE ${path}) |
| set(${final_path} ${path} PARENT_SCOPE) |
| else() |
| set(${final_path} ${base}/${path} PARENT_SCOPE) |
| endif() |
| endfunction() |
| |
| function(tf_get_model model final_path) |
| string(FIND ${model} "http:" pos_http) |
| string(FIND ${model} "https:" pos_https) |
| if (${pos_http} EQUAL 0 OR ${pos_https} EQUAL 0) |
| message("Downloading model " ${model}) |
| string(FIND ${model} "/" fname_start REVERSE) |
| math(EXPR fname_start "${fname_start}+1") |
| string(SUBSTRING ${model} ${fname_start}+1 -1 fname) |
| message("Model archive: " ${fname}) |
| file(DOWNLOAD ${model} ${CMAKE_CURRENT_BINARY_DIR}/${fname}) |
| file(ARCHIVE_EXTRACT INPUT |
| ${CMAKE_CURRENT_BINARY_DIR}/${fname} |
| DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/${fname}_model) |
| set(${final_path} ${CMAKE_CURRENT_BINARY_DIR}/${fname}_model/model PARENT_SCOPE) |
| else() |
| tf_get_absolute_path(${model} ${CMAKE_CURRENT_BINARY_DIR} model_path) |
| set(${final_path} ${model_path} PARENT_SCOPE) |
| endif() |
| endfunction() |
| |
| # Generate a mock model for tests. |
| function(generate_mock_model generator output) |
| tf_get_absolute_path(${generator} ${CMAKE_CURRENT_SOURCE_DIR} generator_absolute_path) |
| tf_get_absolute_path(${output} ${CMAKE_CURRENT_BINARY_DIR} output_absolute_path) |
| message(WARNING "Autogenerated mock models should not be used in production builds.") |
| execute_process(COMMAND python3 |
| ${generator_absolute_path} |
| ${output_absolute_path} |
| WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} |
| ) |
| endfunction() |
| |
| # Run the tensorflow compiler (saved_model_cli) on the saved model in the |
| # ${model} directory, looking for the ${tag_set} tag set, and the SignatureDef |
| # ${signature_def_key}. |
| # Produce a pair of files called ${fname}.h and ${fname}.o in the |
| # ${CMAKE_CURRENT_BINARY_DIR}. The generated header will define a C++ class |
| # called ${cpp_class} - which may be a namespace-qualified class name. |
| function(tf_compile model tag_set signature_def_key fname cpp_class hdr_file obj_file) |
| tf_get_absolute_path(${model} ${CMAKE_CURRENT_BINARY_DIR} LLVM_ML_MODELS_ABSOLUTE) |
| message("Using model at " ${LLVM_ML_MODELS_ABSOLUTE}) |
| add_custom_command(OUTPUT ${obj_file} ${hdr_file} |
| COMMAND ${TENSORFLOW_AOT_COMPILER} aot_compile_cpu |
| --multithreading false |
| --dir ${LLVM_ML_MODELS_ABSOLUTE} |
| --tag_set ${tag_set} |
| --signature_def_key ${signature_def_key} |
| --output_prefix ${prefix} |
| --cpp_class ${cpp_class} |
| --target_triple ${LLVM_HOST_TRIPLE} |
| ) |
| |
| # Aggregate the objects so that results of different tf_compile calls may be |
| # grouped into one target. |
| set(GENERATED_OBJS ${GENERATED_OBJS} ${obj_file} PARENT_SCOPE) |
| set_source_files_properties(${obj_file} PROPERTIES |
| GENERATED 1 EXTERNAL_OBJECT 1) |
| |
| set(GENERATED_HEADERS ${GENERATED_HEADERS} ${hdr_file} PARENT_SCOPE) |
| set_source_files_properties(${hdr_file} PROPERTIES |
| GENERATED 1) |
| |
| endfunction() |
| |
| function(tf_find_and_compile model default_url default_path test_model_generator tag_set signature_def_key fname cpp_class) |
| set(prefix ${CMAKE_CURRENT_BINARY_DIR}/${fname}) |
| set(obj_file ${prefix}.o) |
| set(hdr_file ${prefix}.h) |
| string(TOUPPER ${fname} fname_allcaps) |
| set(override_header ${LLVM_OVERRIDE_MODEL_HEADER_${fname_allcaps}}) |
| set(override_object ${LLVM_OVERRIDE_MODEL_OBJECT_${fname_allcaps}}) |
| # If the user specified overrides, that indicates intent to use AOT and we |
| # don't care what the model path is |
| if (EXISTS "${override_header}" AND EXISTS "${override_object}") |
| configure_file(${override_header} ${hdr_file} COPYONLY) |
| configure_file(${override_object} ${obj_file} COPYONLY) |
| message(STATUS "Using provided header " ${hdr_file} " and object " ${obj_file} " |
| files for model " ${fname}) |
| set(GENERATED_OBJS ${GENERATED_OBJS} ${obj_file}) |
| set(GENERATED_HEADERS ${GENERATED_HEADERS} ${hdr_file}) |
| elseif("${model}" STREQUAL "none") |
| message(STATUS "Will skip enabling mlgo for ${fname}") |
| return() |
| else() |
| if ("${model}" STREQUAL "download") |
| # Crash if the user wants to download a model but a URL is set to "TO_BE_UPDATED" |
| if ("${default_url}" STREQUAL "TO_BE_UPDATED") |
| message(FATAL_ERROR "Default URL was set to 'download' but there is no" |
| " model url currently specified in cmake - likely, the model interface" |
| " recently changed, and so there is not a released model available.") |
| endif() |
| |
| set(model ${default_url}) |
| endif() |
| |
| if ("${model}" STREQUAL "autogenerate") |
| set(model ${default_path}-autogenerated) |
| generate_mock_model(${test_model_generator} ${model}) |
| endif() |
| |
| tf_get_model(${model} LLVM_ML_MODELS_ABSOLUTE) |
| tf_compile(${LLVM_ML_MODELS_ABSOLUTE} ${tag_set} ${signature_def_key} ${fname} ${cpp_class} ${hdr_file} ${obj_file}) |
| endif() |
| |
| set(GeneratedMLSources ${GeneratedMLSources} ${GENERATED_HEADERS} PARENT_SCOPE) |
| set(MLDeps ${MLDeps} tf_xla_runtime PARENT_SCOPE) |
| set(MLLinkDeps ${MLLinkDeps} tf_xla_runtime ${GENERATED_OBJS} PARENT_SCOPE) |
| add_definitions(-DLLVM_HAVE_TF_AOT_${fname_allcaps}) |
| endfunction() |