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# =================================================================================
# Lifetime Analysis Benchmarking Target
# =================================================================================
# This target allows running performance benchmarks for the clang lifetime analysis
# using a Python script (with managed dependencies).
find_package(Python3 COMPONENTS Interpreter REQUIRED)
# Define paths for the virtual environment and requirements file.
set(LIFETIME_BENCHMARK_SCRIPT
"${CMAKE_CURRENT_SOURCE_DIR}/benchmark.py")
set(LIFETIME_BENCHMARK_VENV_DIR "${CMAKE_CURRENT_BINARY_DIR}/benchmark-venv")
set(LIFETIME_BENCHMARK_REQUIREMENTS
"${CMAKE_CURRENT_SOURCE_DIR}/requirements.txt")
set(LIFETIME_BENCHMARK_OUTPUT_DIR
"${CMAKE_CURRENT_BINARY_DIR}/benchmark_results")
if(EXISTS ${LIFETIME_BENCHMARK_SCRIPT} AND EXISTS ${LIFETIME_BENCHMARK_REQUIREMENTS})
# Set up the virtual environment and install packages
add_custom_command(
OUTPUT ${LIFETIME_BENCHMARK_VENV_DIR}/pyvenv.cfg
COMMAND ${Python3_EXECUTABLE} -m venv ${LIFETIME_BENCHMARK_VENV_DIR}
COMMAND ${LIFETIME_BENCHMARK_VENV_DIR}/bin/python -m pip install -r ${LIFETIME_BENCHMARK_REQUIREMENTS}
DEPENDS ${LIFETIME_BENCHMARK_REQUIREMENTS}
COMMENT "Creating Python virtual environment and installing dependencies for benchmark..."
)
add_custom_target(benchmark_venv_setup
DEPENDS ${LIFETIME_BENCHMARK_VENV_DIR}/pyvenv.cfg
)
# Main benchmark target
add_custom_target(benchmark_lifetime_safety_analysis
COMMAND ${LIFETIME_BENCHMARK_VENV_DIR}/bin/python ${LIFETIME_BENCHMARK_SCRIPT}
--clang-binary ${LLVM_BINARY_DIR}/bin/clang
--output-dir ${LIFETIME_BENCHMARK_OUTPUT_DIR}
DEPENDS clang benchmark_venv_setup
# Display the output directly in the console.
USES_TERMINAL
COMMENT "Running Lifetime Analysis performance benchmarks..."
)
set_target_properties(benchmark_lifetime_safety_analysis
PROPERTIES FOLDER "Clang/Benchmarks")
endif()
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