[PATCH] D26715: [CMake] Error when LTO and lld are enabled on Darwin

[Petr Hosek via llvm-commits]

phosek created this revision.
phosek added reviewers: mehdi_amini, beanz.
phosek added a subscriber: llvm-commits.
phosek set the repository for this revision to rL LLVM.
Herald added a subscriber: mgorny.

lld on Darwin does not currently support LTO.


Repository:
  rL LLVM

https://reviews.llvm.org/D26715

Files:
  cmake/modules/HandleLLVMOptions.cmake


Index: cmake/modules/HandleLLVMOptions.cmake
===================================================================
--- cmake/modules/HandleLLVMOptions.cmake
+++ cmake/modules/HandleLLVMOptions.cmake
@@ -96,6 +96,9 @@
 set(LLVM_PLUGIN_EXT ${CMAKE_SHARED_LIBRARY_SUFFIX})
 
 if(APPLE)
+  if(LLVM_ENABLE_LLD AND LLVM_ENABLE_LTO)
+    message(FATAL_ERROR "lld does not support LTO on Darwin")
+  endif()
   # Darwin-specific linker flags for loadable modules.
   set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -Wl,-flat_namespace -Wl,-undefined -Wl,suppress")
 endif()


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