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| author | Justin Bogner <mail@justinbogner.com> | 2016-10-28 20:48:47 +0000 |
|---|---|---|
| committer | Justin Bogner <mail@justinbogner.com> | 2016-10-28 20:48:47 +0000 |
| commit | 1b05f6c66d5c92f3be971f16702b66dcf79d3057 (patch) | |
| tree | af1d808ce517c18c27ac9780257db7c2e79894c3 /llvm/cmake | |
| parent | b5f2bb1a88bde10d7084b99e442ed2ee85224189 (diff) | |
| download | bcm5719-llvm-1b05f6c66d5c92f3be971f16702b66dcf79d3057.tar.gz bcm5719-llvm-1b05f6c66d5c92f3be971f16702b66dcf79d3057.zip | |
cmake: Enable the lto cache when building with -flto=thin on darwin
llvm-svn: 285450
Diffstat (limited to 'llvm/cmake')
| -rw-r--r-- | llvm/cmake/modules/HandleLLVMOptions.cmake | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/cmake/modules/HandleLLVMOptions.cmake b/llvm/cmake/modules/HandleLLVMOptions.cmake index 3c1d0d7e7b1..3abe57a5e3f 100644 --- a/llvm/cmake/modules/HandleLLVMOptions.cmake +++ b/llvm/cmake/modules/HandleLLVMOptions.cmake @@ -647,6 +647,11 @@ string(TOUPPER "${LLVM_ENABLE_LTO}" uppercase_LLVM_ENABLE_LTO) if(uppercase_LLVM_ENABLE_LTO STREQUAL "THIN") append("-flto=thin" CMAKE_CXX_FLAGS CMAKE_C_FLAGS CMAKE_EXE_LINKER_FLAGS CMAKE_SHARED_LINKER_FLAGS) + # On darwin, enable the lto cache. This improves initial build time a little + # since we re-link a lot of the same objects, and significantly improves + # incremental build time. + append_if(APPLE "-Wl,-cache_path_lto,${PROJECT_BINARY_DIR}/lto.cache" + CMAKE_EXE_LINKER_FLAGS CMAKE_SHARED_LINKER_FLAGS) elseif(uppercase_LLVM_ENABLE_LTO STREQUAL "FULL") append("-flto=full" CMAKE_CXX_FLAGS CMAKE_C_FLAGS CMAKE_EXE_LINKER_FLAGS CMAKE_SHARED_LINKER_FLAGS) |
