1CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12 FATAL_ERROR) 2 3INCLUDE(GNUInstallDirs) 4 5# ---[ Project 6PROJECT(FXdiv C CXX) 7 8# ---[ Options. 9OPTION(FXDIV_USE_INLINE_ASSEMBLY "Allow use of inline assembly in FXdiv" OFF) 10IF("${CMAKE_SOURCE_DIR}" STREQUAL "${PROJECT_SOURCE_DIR}") 11 OPTION(FXDIV_BUILD_TESTS "Build FXdiv unit tests" ON) 12 OPTION(FXDIV_BUILD_BENCHMARKS "Build FXdiv micro-benchmarks" ON) 13ELSE() 14 SET(FXDIV_BUILD_TESTS OFF CACHE BOOL "Build FXdiv unit tests") 15 SET(FXDIV_BUILD_BENCHMARKS OFF CACHE BOOL "Build FXdiv micro-benchmarks") 16ENDIF() 17 18# ---[ CMake options 19IF(FXDIV_BUILD_TESTS) 20 ENABLE_TESTING() 21ENDIF() 22 23# ---[ Download deps 24SET(CONFU_DEPENDENCIES_SOURCE_DIR ${CMAKE_SOURCE_DIR}/deps 25 CACHE PATH "Confu-style dependencies source directory") 26SET(CONFU_DEPENDENCIES_BINARY_DIR ${CMAKE_BINARY_DIR}/deps 27 CACHE PATH "Confu-style dependencies binary directory") 28 29IF(FXDIV_BUILD_TESTS AND NOT DEFINED GOOGLETEST_SOURCE_DIR) 30 MESSAGE(STATUS "Downloading Google Test to ${CONFU_DEPENDENCIES_SOURCE_DIR}/googletest (define GOOGLETEST_SOURCE_DIR to avoid it)") 31 CONFIGURE_FILE(cmake/DownloadGoogleTest.cmake "${CONFU_DEPENDENCIES_BINARY_DIR}/googletest-download/CMakeLists.txt") 32 EXECUTE_PROCESS(COMMAND "${CMAKE_COMMAND}" -G "${CMAKE_GENERATOR}" . 33 WORKING_DIRECTORY "${CONFU_DEPENDENCIES_BINARY_DIR}/googletest-download") 34 EXECUTE_PROCESS(COMMAND "${CMAKE_COMMAND}" --build . 35 WORKING_DIRECTORY "${CONFU_DEPENDENCIES_BINARY_DIR}/googletest-download") 36 SET(GOOGLETEST_SOURCE_DIR "${CONFU_DEPENDENCIES_SOURCE_DIR}/googletest" CACHE STRING "Google Test source directory") 37ENDIF() 38 39IF(FXDIV_BUILD_BENCHMARKS AND NOT DEFINED GOOGLEBENCHMARK_SOURCE_DIR) 40 MESSAGE(STATUS "Downloading Google Benchmark to ${CONFU_DEPENDENCIES_SOURCE_DIR}/googlebenchmark (define GOOGLEBENCHMARK_SOURCE_DIR to avoid it)") 41 CONFIGURE_FILE(cmake/DownloadGoogleBenchmark.cmake "${CONFU_DEPENDENCIES_BINARY_DIR}/googlebenchmark-download/CMakeLists.txt") 42 EXECUTE_PROCESS(COMMAND "${CMAKE_COMMAND}" -G "${CMAKE_GENERATOR}" . 43 WORKING_DIRECTORY "${CONFU_DEPENDENCIES_BINARY_DIR}/googlebenchmark-download") 44 EXECUTE_PROCESS(COMMAND "${CMAKE_COMMAND}" --build . 45 WORKING_DIRECTORY "${CONFU_DEPENDENCIES_BINARY_DIR}/googlebenchmark-download") 46 SET(GOOGLEBENCHMARK_SOURCE_DIR "${CONFU_DEPENDENCIES_SOURCE_DIR}/googlebenchmark" CACHE STRING "Google Benchmark source directory") 47ENDIF() 48 49# ---[ FXdiv library 50IF(${CMAKE_VERSION} VERSION_LESS "3.0") 51 ADD_LIBRARY(fxdiv STATIC include/fxdiv.h) 52 SET_TARGET_PROPERTIES(fxdiv PROPERTIES LINKER_LANGUAGE C) 53ELSE() 54 ADD_LIBRARY(fxdiv INTERFACE) 55ENDIF() 56TARGET_INCLUDE_DIRECTORIES(fxdiv INTERFACE include) 57IF(NOT FXDIV_USE_INLINE_ASSEMBLY) 58 TARGET_COMPILE_DEFINITIONS(fxdiv INTERFACE FXDIV_USE_INLINE_ASSEMBLY=0) 59ENDIF() 60 61INSTALL(FILES include/fxdiv.h DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}) 62 63IF(FXDIV_BUILD_TESTS) 64 # ---[ Build google test 65 IF(NOT TARGET gtest) 66 SET(gtest_force_shared_crt ON CACHE BOOL "" FORCE) 67 ADD_SUBDIRECTORY( 68 "${GOOGLETEST_SOURCE_DIR}" 69 "${CONFU_DEPENDENCIES_BINARY_DIR}/googletest") 70 ENDIF() 71 72 ADD_EXECUTABLE(multiply-high-test test/multiply-high.cc) 73 TARGET_LINK_LIBRARIES(multiply-high-test fxdiv gtest gtest_main) 74 ADD_TEST(multiply-high multiply-high-test) 75 76 ADD_EXECUTABLE(quotient-test test/quotient.cc) 77 TARGET_LINK_LIBRARIES(quotient-test fxdiv gtest gtest_main) 78 ADD_TEST(quotient quotient-test) 79ENDIF() 80 81IF(FXDIV_BUILD_BENCHMARKS) 82 # ---[ Build google benchmark 83 IF(NOT TARGET benchmark) 84 SET(BENCHMARK_ENABLE_TESTING OFF CACHE BOOL "" FORCE) 85 ADD_SUBDIRECTORY( 86 "${GOOGLEBENCHMARK_SOURCE_DIR}" 87 "${CONFU_DEPENDENCIES_BINARY_DIR}/googlebenchmark") 88 ENDIF() 89 90 ADD_EXECUTABLE(init-bench bench/init.cc) 91 TARGET_LINK_LIBRARIES(init-bench fxdiv benchmark) 92 93 ADD_EXECUTABLE(multiply-bench bench/multiply.cc) 94 TARGET_LINK_LIBRARIES(multiply-bench fxdiv benchmark) 95 96 ADD_EXECUTABLE(divide-bench bench/divide.cc) 97 TARGET_LINK_LIBRARIES(divide-bench fxdiv benchmark) 98 99 ADD_EXECUTABLE(quotient-bench bench/quotient.cc) 100 TARGET_LINK_LIBRARIES(quotient-bench fxdiv benchmark) 101 102 ADD_EXECUTABLE(round-down-bench bench/round-down.cc) 103 TARGET_LINK_LIBRARIES(round-down-bench fxdiv benchmark) 104ENDIF() 105