diff options
Diffstat (limited to 'llvm/cmake')
| -rw-r--r-- | llvm/cmake/modules/AddLLVM.cmake | 47 |
1 files changed, 26 insertions, 21 deletions
diff --git a/llvm/cmake/modules/AddLLVM.cmake b/llvm/cmake/modules/AddLLVM.cmake index 80e59a4..7d40d30 100644 --- a/llvm/cmake/modules/AddLLVM.cmake +++ b/llvm/cmake/modules/AddLLVM.cmake @@ -1747,6 +1747,31 @@ function(add_llvm_implicit_projects) llvm_add_implicit_projects(LLVM) endfunction(add_llvm_implicit_projects) +function(set_unittest_link_flags target_name) + # The runtime benefits of LTO don't outweight the compile time costs for + # tests. + if(LLVM_ENABLE_LTO) + if((UNIX OR MINGW) AND LINKER_IS_LLD) + if(LLVM_ENABLE_FATLTO AND NOT APPLE) + # When using FatLTO, just use relocatable linking. + set_property(TARGET ${target_name} APPEND_STRING PROPERTY + LINK_FLAGS " -Wl,--no-fat-lto-objects") + else() + set_property(TARGET ${target_name} APPEND_STRING PROPERTY + LINK_FLAGS " -Wl,--lto-O0") + endif() + elseif(LINKER_IS_LLD_LINK) + set_property(TARGET ${target_name} APPEND_STRING PROPERTY + LINK_FLAGS " /opt:lldlto=0") + elseif(APPLE AND NOT uppercase_LLVM_ENABLE_LTO STREQUAL "THIN") + set_property(TARGET ${target_name} APPEND_STRING PROPERTY + LINK_FLAGS " -Wl,-mllvm,-O0") + endif() + endif() + + target_link_options(${target_name} PRIVATE "${LLVM_UNITTEST_LINK_FLAGS}") +endfunction(set_unittest_link_flags) + # Generic support for adding a unittest. function(add_unittest test_suite test_name) if( NOT LLVM_BUILD_TESTS ) @@ -1770,27 +1795,7 @@ function(add_unittest test_suite test_name) get_subproject_title(subproject_title) set_target_properties(${test_name} PROPERTIES FOLDER "${subproject_title}/Tests/Unit") - # The runtime benefits of LTO don't outweight the compile time costs for tests. - if(LLVM_ENABLE_LTO) - if((UNIX OR MINGW) AND LINKER_IS_LLD) - if(LLVM_ENABLE_FATLTO AND NOT APPLE) - # When using FatLTO, just use relocatable linking. - set_property(TARGET ${test_name} APPEND_STRING PROPERTY - LINK_FLAGS " -Wl,--no-fat-lto-objects") - else() - set_property(TARGET ${test_name} APPEND_STRING PROPERTY - LINK_FLAGS " -Wl,--lto-O0") - endif() - elseif(LINKER_IS_LLD_LINK) - set_property(TARGET ${test_name} APPEND_STRING PROPERTY - LINK_FLAGS " /opt:lldlto=0") - elseif(APPLE AND NOT uppercase_LLVM_ENABLE_LTO STREQUAL "THIN") - set_property(TARGET ${target_name} APPEND_STRING PROPERTY - LINK_FLAGS " -Wl,-mllvm,-O0") - endif() - endif() - - target_link_options(${test_name} PRIVATE "${LLVM_UNITTEST_LINK_FLAGS}") + set_unittest_link_flags(${test_name}) set(outdir ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}) set_output_directory(${test_name} BINARY_DIR ${outdir} LIBRARY_DIR ${outdir}) |