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explicitly disable LTO for Clang

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Riccardo Spagni 2014-09-15 22:47:26 +02:00
parent 9db881864d
commit d8257fb67b
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1 changed files with 5 additions and 1 deletions
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6
CMakeLists.txt
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@ -123,8 +123,12 @@ else()
set(USE_LTO_DEFAULT true) set(USE_LTO_DEFAULT true)
endif() endif()
set(USE_LTO ${USE_LTO_DEFAULT} CACHE BOOL "Use Link-Time Optimization (Release mode only)") set(USE_LTO ${USE_LTO_DEFAULT} CACHE BOOL "Use Link-Time Optimization (Release mode only)")
# There is a clang bug that does not allow to compile code that uses AES-NI intrinsics if -flto is enabled, so explicitly disable
if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
set(USE_LTO false)
endif()
if(USE_LTO) if(USE_LTO)
# There is a clang bug that does not allow to compile code that uses AES-NI intrinsics if -flto is enabled
set(RELEASE_FLAGS "${RELEASE_FLAGS} -flto") set(RELEASE_FLAGS "${RELEASE_FLAGS} -flto")
if(STATIC) if(STATIC)
set(RELEASE_FLAGS "${RELEASE_FLAGS} -ffat-lto-objects") set(RELEASE_FLAGS "${RELEASE_FLAGS} -ffat-lto-objects")