diff options
| author | Rafael Espindola <rafael.espindola@gmail.com> | 2014-11-02 12:14:22 +0000 |
|---|---|---|
| committer | Rafael Espindola <rafael.espindola@gmail.com> | 2014-11-02 12:14:22 +0000 |
| commit | a0ef0e7d0ce602590c18277ec3483c340366a8a6 (patch) | |
| tree | 89d18e264fdd7684e0d38a9c511dd5a0abe1d627 | |
| parent | e82f41785f062ceef716279d60e3afd2156859a8 (diff) | |
[cmake] Pass -O3 when linking.
Gold and bfd ld enable misc optimizations. lld ignores the option for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221097 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | cmake/modules/AddLLVM.cmake | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/cmake/modules/AddLLVM.cmake b/cmake/modules/AddLLVM.cmake index 6646a4b8255..198393dc507 100644 --- a/cmake/modules/AddLLVM.cmake +++ b/cmake/modules/AddLLVM.cmake @@ -142,7 +142,14 @@ function(add_llvm_symbol_exports target_name export_file) set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} PARENT_SCOPE) endfunction(add_llvm_symbol_exports) -function(add_dead_strip target_name) +function(add_link_opts target_name) + # Pass -O3 to the linker. This enabled different optimizations on different + # linkers. + if(NOT (${CMAKE_SYSTEM_NAME} MATCHES "Darwin" OR WIN32)) + set_property(TARGET ${target_name} APPEND_STRING PROPERTY + LINK_FLAGS " -Wl,-O3") + endif() + if(NOT LLVM_NO_DEAD_STRIP) if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin") # ld64's implementation of -dead_strip breaks tools that use plugins. @@ -157,7 +164,7 @@ function(add_dead_strip target_name) LINK_FLAGS " -Wl,--gc-sections") endif() endif() -endfunction(add_dead_strip) +endfunction(add_link_opts) # Set each output directory according to ${CMAKE_CONFIGURATION_TYPES}. # Note: Don't set variables CMAKE_*_OUTPUT_DIRECTORY any more, @@ -287,7 +294,7 @@ function(llvm_add_library name) endif() set_output_directory(${name} ${LLVM_RUNTIME_OUTPUT_INTDIR} ${LLVM_LIBRARY_OUTPUT_INTDIR}) llvm_update_compile_flags(${name}) - add_dead_strip( ${name} ) + add_link_opts( ${name} ) if(ARG_OUTPUT_NAME) set_target_properties(${name} PROPERTIES @@ -445,7 +452,7 @@ macro(add_llvm_executable name) add_executable(${name} ${ALL_FILES}) endif() llvm_update_compile_flags(${name}) - add_dead_strip( ${name} ) + add_link_opts( ${name} ) # Do not add -Dname_EXPORTS to the command-line when building files in this # target. Doing so is actively harmful for the modules build because it |