| # Ensure the ${model} is available at ${final_path}. |
| # |
| function(tfgetmodel model final_path) |
| if (IS_ABSOLUTE ${model}) |
| set(${final_path} ${model} PARENT_SCOPE) |
| else() |
| set(${final_path} |
| ${CMAKE_CURRENT_SOURCE_DIR}/${model} PARENT_SCOPE) |
| endif() |
| 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(tfcompile model 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 (EXISTS "${override_header}" AND EXISTS "${override_object}") |
| configure_file(${override_header} ${hdr_file} COPYONLY) |
| configure_file(${override_object} ${obj_file} COPYONLY) |
| message("Using provided header " |
| ${hdr_file} " and object " ${obj_file} |
| " files for model " ${model}) |
| else() |
| tfgetmodel(${model} LLVM_ML_MODELS_ABSOLUTE) |
| message("Using model at " ${LLVM_ML_MODELS_ABSOLUTE}) |
| add_custom_command(OUTPUT ${obj_file} ${hdr_file} |
| COMMAND "XLA_FLAGS=\"--xla_cpu_multi_thread_eigen=false\"" ${TENSORFLOW_AOT_COMPILER} aot_compile_cpu |
| --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} |
| ) |
| endif() |
| |
| # Aggregate the objects so that results of different tfcompile 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() |