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##===- TestSuite.cmake ----------------------------------------------------===##
#
# Defines helper functions to build benchmarks and the corresponding .test files
#
##===----------------------------------------------------------------------===##
include(TestFile)
include(CopyDir)
# Copies files and directories to be used as benchmark input data to the
# directory of the benchmark executable.
# Paths are interepreted relative to CMAKE_CURRENT_SOURCE_DIR by default but
# this can be changed with the SOURCE_DIR argument.
function(llvm_test_data target)
cmake_parse_arguments(_LTDARGS "MUST_COPY" "SOURCE_DIR" "" ${ARGN})
set(SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
if(_LTDARGS_SOURCE_DIR)
set(SOURCE_DIR ${_LTDARGS_SOURCE_DIR})
endif()
foreach(file ${_LTDARGS_UNPARSED_ARGUMENTS})
set(full_path ${SOURCE_DIR}/${file})
if(_LTDARGS_MUST_COPY)
if(IS_DIRECTORY ${full_path})
llvm_copy_dir(${target} $<TARGET_FILE_DIR:${target}>/${file} ${full_path})
else()
llvm_copy(${target} $<TARGET_FILE_DIR:${target}>/${file} ${full_path})
endif()
else()
get_filename_component(file_subdir ${file} DIRECTORY)
if(file_subdir)
llvm_make_directory(${target} ${file_subdir})
endif()
llvm_create_symlink(${target} $<TARGET_FILE_DIR:${target}>/${file} ${full_path})
endif()
endforeach()
endfunction()
# Creates a new executable build target. Use this instead of `add_executable`.
# It applies CFLAGS, CPPFLAGS, CXXFLAGS and LDFLAGS. Creates a .test file if
# necessary, registers the target with the TEST_SUITE_TARGETS list and makes
# sure we build the required dependencies for compiletime measurements
# and support the TEST_SUITE_PROFILE_USE mode.
function(llvm_test_executable target)
add_executable(${target} ${ARGN})
append_target_flags(COMPILE_FLAGS ${target} ${CFLAGS})
append_target_flags(COMPILE_FLAGS ${target} ${CPPFLAGS})
append_target_flags(COMPILE_FLAGS ${target} ${CXXFLAGS})
# Note that we cannot use target_link_libraries() here because that one
# only interprets inputs starting with '-' as flags.
append_target_flags(LINK_LIBRARIES ${target} ${LDFLAGS})
set(target_path ${CMAKE_CURRENT_BINARY_DIR}/${target})
if(TEST_SUITE_PROFILE_USE)
append_target_flags(COMPILE_FLAGS ${target} -fprofile-instr-use=${target_path}.profdata)
append_target_flags(LINK_LIBRARIES ${target} -fprofile-instr-use=${target_path}.profdata)
endif()
set_property(GLOBAL APPEND PROPERTY TEST_SUITE_TARGETS ${target})
llvm_add_test(${CMAKE_CURRENT_BINARY_DIR}/${target}.test ${target_path})
test_suite_add_build_dependencies(${target})
set(TESTSCRIPT "" PARENT_SCOPE)
endfunction()
# Creates a new library build target. Use this instead of `add_library`.
# Behaves like `llvm_test_executable`, just produces a library instead of an
# executable.
function(llvm_test_library target)
add_library(${target} ${ARGN})
append_target_flags(COMPILE_FLAGS ${target} ${CFLAGS})
append_target_flags(COMPILE_FLAGS ${target} ${CPPFLAGS})
append_target_flags(COMPILE_FLAGS ${target} ${CXXFLAGS})
# Note that we cannot use target_link_libraries() here because that one
# only interprets inputs starting with '-' as flags.
append_target_flags(LINK_LIBRARIES ${target} ${LDFLAGS})
# TODO: How to support TEST_SUITE_PROFILE_USE properly?
test_suite_add_build_dependencies(${target})
endfunction()
# Add dependencies required for compiletime measurements to a target. You
# usually do not need to call this directly when using `llvm_test_executable`
# or `llvm_test_library`.
function(test_suite_add_build_dependencies target)
add_dependencies(${target} build-timeit build-timeit-target build-fpcmp)
endfunction()
# Internal function that transforms a list of flags to a string and appends
# it to a given property of a target.
function(append_target_flags propertyname target)
if(NOT "${ARGN}" STREQUAL "")
get_target_property(old_flags ${target} ${propertyname})
if(${old_flags} STREQUAL "old_flags-NOTFOUND")
set(old_flags)
endif()
# Transform ${ARGN} which is a cmake list into a series of commandline
# arguments. This requires some shell quoting (the approach here isn't
# perfect)
string(REPLACE " " "\\ " quoted "${ARGN}")
string(REPLACE "\"" "\\\"" quoted "${quoted}")
string(REPLACE ";" " " quoted "${quoted}")
# Ensure that there is no leading or trailing whitespace
# This is especially important if old_flags is empty and the property
# is LINK_LIBRARIES, as extra whitespace violates CMP0004
string(STRIP "${old_flags} ${quoted}" new_flags)
set_target_properties(${target} PROPERTIES ${propertyname} "${new_flags}")
endif()
endfunction()
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