add -mfpmath=sse -msse2 compiler flags: x86/amd64
This may speed things up a little in some places, or maybe not, but should be safe as few if any users are likely to be using a CPU without SSE2.
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@ -326,12 +326,18 @@ IF(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID STREQUAL Clang)
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ENDIF()
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ENDIF(ENABLE_LTO)
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unset(MY_C_OPT_FLAGS)
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if(X86_32 OR AMD64)
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set(MY_C_OPT_FLAGS -mfpmath=sse -msse2)
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endif()
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# common optimization flags
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IF(NOT (APPLE AND CMAKE_CXX_COMPILER_ID STREQUAL Clang AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.3))
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SET(MY_C_OPT_FLAGS -O2 -fomit-frame-pointer ${LTO_FLAGS})
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SET(MY_C_OPT_FLAGS ${MY_C_OPT_FLAGS} -O2 -fomit-frame-pointer ${LTO_FLAGS})
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ELSE()
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# LTO and -fomit-frame-pointer generate broken binaries on Lion with XCode 4.2 tools
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SET(MY_C_OPT_FLAGS -O2)
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SET(MY_C_OPT_FLAGS ${MY_C_OPT_FLAGS} -O2)
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ENDIF()
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# only use -mtune=generic on PC architectures
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