[PATCH] D69941: [cmake] Enable thin lto cache when building with lld-link

[Russell Gallop via Phabricator via llvm-commits]

russell.gallop created this revision.
russell.gallop added reviewers: pcc, rnk.
Herald added subscribers: dexonsmith, inglorion, mgorny.
Herald added a project: LLVM.

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


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D69941

Files:
  llvm/cmake/modules/HandleLLVMOptions.cmake


Index: llvm/cmake/modules/HandleLLVMOptions.cmake
===================================================================
--- llvm/cmake/modules/HandleLLVMOptions.cmake
+++ llvm/cmake/modules/HandleLLVMOptions.cmake
@@ -870,6 +870,9 @@
   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)


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