|  | # The configured file is not placed in the correct location | 
|  | # until the tests are run as we need to copy it into | 
|  | # a copy of the tests folder | 
|  | configure_lit_site_cfg( | 
|  | "${CMAKE_CURRENT_SOURCE_DIR}/tests/lit.site.cfg.in" | 
|  | "${CMAKE_CURRENT_BINARY_DIR}/lit.site.cfg" | 
|  | OUTPUT_MAPPING | 
|  | "${CMAKE_CURRENT_BINARY_DIR}/tests/lit.site.cfg" | 
|  | ) | 
|  |  | 
|  | # Lit's test suite creates output files next to the sources which makes the | 
|  | # source tree dirty. This is undesirable because we do out of source builds. | 
|  | # To work around this the tests and the configuration file are copied into the | 
|  | # build directory just before running them. The tests are not copied over at | 
|  | # configure time (i.e. `file(COPY ...)`) because this could lead to stale | 
|  | # tests being run. | 
|  | add_custom_target(prepare-check-lit | 
|  | COMMAND ${CMAKE_COMMAND} -E remove_directory "${CMAKE_CURRENT_BINARY_DIR}/tests" | 
|  | COMMAND ${CMAKE_COMMAND} -E copy_directory "${CMAKE_CURRENT_SOURCE_DIR}/tests" "${CMAKE_CURRENT_BINARY_DIR}/tests" | 
|  | COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_CURRENT_BINARY_DIR}/lit.site.cfg" "${CMAKE_CURRENT_BINARY_DIR}/tests" | 
|  | COMMENT "Preparing lit tests" | 
|  | ) | 
|  |  | 
|  | # Add rules for lit's own test suite | 
|  | add_lit_testsuite(check-lit "Running lit's tests" | 
|  | ${CMAKE_CURRENT_BINARY_DIR} | 
|  | DEPENDS "FileCheck" "not" "prepare-check-lit" | 
|  | ) | 
|  |  | 
|  | # For IDEs | 
|  | set_target_properties(check-lit PROPERTIES FOLDER "Tests") | 
|  | set_target_properties(prepare-check-lit PROPERTIES FOLDER "Tests") |