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[cmake] Enable thin lto cache when building with lld-link 

This was enabled for other platforms. Added option for Windows/lld-link.

Differential Revision: https://reviews.llvm.org/D69941
This commit is contained in:
Russell Gallop 2019-11-08 10:46:24 +00:00
parent ff3b513495
commit 0a8bd77e77
1 changed files with 3 additions and 0 deletions
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3
llvm/cmake/modules/HandleLLVMOptions.cmake
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@ -870,6 +870,9 @@ if(uppercase_LLVM_ENABLE_LTO STREQUAL "THIN")
elseif(LLVM_USE_LINKER STREQUAL "gold")
append("-Wl,--plugin-opt,cache-dir=${PROJECT_BINARY_DIR}/lto.cache"
CMAKE_EXE_LINKER_FLAGS CMAKE_SHARED_LINKER_FLAGS)
elseif(LINKER_IS_LLD_LINK)
append("/lldltocache:${PROJECT_BINARY_DIR}/lto.cache"
CMAKE_EXE_LINKER_FLAGS CMAKE_SHARED_LINKER_FLAGS)
endif()
elseif(uppercase_LLVM_ENABLE_LTO STREQUAL "FULL")
append("-flto=full" CMAKE_CXX_FLAGS CMAKE_C_FLAGS)