116 lines
4.8 KiB
CMake
116 lines
4.8 KiB
CMake
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# Check if SSE instructions are available on the machine where
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# the project is compiled.
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IF (ARCH MATCHES "i386" OR ARCH MATCHES "x86_64")
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IF(CMAKE_SYSTEM_NAME MATCHES "Linux")
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EXEC_PROGRAM(cat ARGS "/proc/cpuinfo" OUTPUT_VARIABLE CPUINFO)
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STRING(REGEX REPLACE "^.*(sse2).*$" "\\1" SSE_THERE ${CPUINFO})
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STRING(COMPARE EQUAL "sse2" "${SSE_THERE}" SSE2_TRUE)
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IF (SSE2_TRUE)
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set(SSE2_FOUND true CACHE BOOL "SSE2 available on host")
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ELSE (SSE2_TRUE)
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set(SSE2_FOUND false CACHE BOOL "SSE2 available on host")
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ENDIF (SSE2_TRUE)
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# /proc/cpuinfo apparently omits sse3 :(
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STRING(REGEX REPLACE "^.*[^s](sse3).*$" "\\1" SSE_THERE ${CPUINFO})
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STRING(COMPARE EQUAL "sse3" "${SSE_THERE}" SSE3_TRUE)
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IF (NOT SSE3_TRUE)
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STRING(REGEX REPLACE "^.*(T2300).*$" "\\1" SSE_THERE ${CPUINFO})
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STRING(COMPARE EQUAL "T2300" "${SSE_THERE}" SSE3_TRUE)
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ENDIF (NOT SSE3_TRUE)
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STRING(REGEX REPLACE "^.*(ssse3).*$" "\\1" SSE_THERE ${CPUINFO})
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STRING(COMPARE EQUAL "ssse3" "${SSE_THERE}" SSSE3_TRUE)
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IF (SSE3_TRUE OR SSSE3_TRUE)
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set(SSE3_FOUND true CACHE BOOL "SSE3 available on host")
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ELSE (SSE3_TRUE OR SSSE3_TRUE)
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set(SSE3_FOUND false CACHE BOOL "SSE3 available on host")
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ENDIF (SSE3_TRUE OR SSSE3_TRUE)
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IF (SSSE3_TRUE)
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set(SSSE3_FOUND true CACHE BOOL "SSSE3 available on host")
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ELSE (SSSE3_TRUE)
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set(SSSE3_FOUND false CACHE BOOL "SSSE3 available on host")
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ENDIF (SSSE3_TRUE)
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STRING(REGEX REPLACE "^.*(sse4_1).*$" "\\1" SSE_THERE ${CPUINFO})
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STRING(COMPARE EQUAL "sse4_1" "${SSE_THERE}" SSE41_TRUE)
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IF (SSE41_TRUE)
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set(SSE4_1_FOUND true CACHE BOOL "SSE4.1 available on host")
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ELSE (SSE41_TRUE)
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set(SSE4_1_FOUND false CACHE BOOL "SSE4.1 available on host")
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ENDIF (SSE41_TRUE)
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STRING(REGEX REPLACE "^.*(sse4_2).*$" "\\1" SSE_THERE ${CPUINFO})
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STRING(COMPARE EQUAL "sse4_2" "${SSE_THERE}" SSE42_TRUE)
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IF (SSE42_TRUE)
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set(SSE4_2_FOUND true CACHE BOOL "SSE4.2 available on host")
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ELSE (SSE42_TRUE)
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set(SSE4_2_FOUND false CACHE BOOL "SSE4.2 available on host")
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ENDIF (SSE42_TRUE)
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ELSEIF(CMAKE_SYSTEM_NAME MATCHES "Darwin")
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EXEC_PROGRAM("/usr/sbin/sysctl -n machdep.cpu.features" OUTPUT_VARIABLE
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CPUINFO)
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STRING(REGEX REPLACE "^.*[^S](SSE2).*$" "\\1" SSE_THERE ${CPUINFO})
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STRING(COMPARE EQUAL "SSE2" "${SSE_THERE}" SSE2_TRUE)
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IF (SSE2_TRUE)
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set(SSE2_FOUND true CACHE BOOL "SSE2 available on host")
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ELSE (SSE2_TRUE)
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set(SSE2_FOUND false CACHE BOOL "SSE2 available on host")
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ENDIF (SSE2_TRUE)
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STRING(REGEX REPLACE "^.*[^S](SSE3).*$" "\\1" SSE_THERE ${CPUINFO})
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STRING(COMPARE EQUAL "SSE3" "${SSE_THERE}" SSE3_TRUE)
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IF (SSE3_TRUE)
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set(SSE3_FOUND true CACHE BOOL "SSE3 available on host")
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ELSE (SSE3_TRUE)
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set(SSE3_FOUND false CACHE BOOL "SSE3 available on host")
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ENDIF (SSE3_TRUE)
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STRING(REGEX REPLACE "^.*(SSSE3).*$" "\\1" SSE_THERE ${CPUINFO})
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STRING(COMPARE EQUAL "SSSE3" "${SSE_THERE}" SSSE3_TRUE)
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IF (SSSE3_TRUE)
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set(SSSE3_FOUND true CACHE BOOL "SSSE3 available on host")
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ELSE (SSSE3_TRUE)
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set(SSSE3_FOUND false CACHE BOOL "SSSE3 available on host")
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ENDIF (SSSE3_TRUE)
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STRING(REGEX REPLACE "^.*(SSE4.1).*$" "\\1" SSE_THERE ${CPUINFO})
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STRING(COMPARE EQUAL "SSE4.1" "${SSE_THERE}" SSE41_TRUE)
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IF (SSE41_TRUE)
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set(SSE4_1_FOUND true CACHE BOOL "SSE4.1 available on host")
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ELSE (SSE41_TRUE)
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set(SSE4_1_FOUND false CACHE BOOL "SSE4.1 available on host")
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ENDIF (SSE41_TRUE)
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ELSEIF(CMAKE_SYSTEM_NAME MATCHES "Windows")
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# TODO
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set(SSE2_FOUND true CACHE BOOL "SSE2 available on host")
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set(SSE3_FOUND false CACHE BOOL "SSE3 available on host")
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set(SSSE3_FOUND false CACHE BOOL "SSSE3 available on host")
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set(SSE4_1_FOUND false CACHE BOOL "SSE4.1 available on host")
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ELSE(CMAKE_SYSTEM_NAME MATCHES "Linux")
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set(SSE2_FOUND true CACHE BOOL "SSE2 available on host")
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set(SSE3_FOUND false CACHE BOOL "SSE3 available on host")
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set(SSSE3_FOUND false CACHE BOOL "SSSE3 available on host")
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set(SSE4_1_FOUND false CACHE BOOL "SSE4.1 available on host")
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ENDIF(CMAKE_SYSTEM_NAME MATCHES "Linux")
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ENDIF(ARCH MATCHES "i386" OR ARCH MATCHES "x86_64")
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if(NOT SSE2_FOUND)
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MESSAGE(STATUS "Could not find hardware support for SSE2 on this machine.")
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endif(NOT SSE2_FOUND)
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if(NOT SSE3_FOUND)
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MESSAGE(STATUS "Could not find hardware support for SSE3 on this machine.")
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endif(NOT SSE3_FOUND)
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if(NOT SSSE3_FOUND)
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MESSAGE(STATUS "Could not find hardware support for SSSE3 on this machine.")
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endif(NOT SSSE3_FOUND)
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if(NOT SSE4_1_FOUND)
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MESSAGE(STATUS "Could not find hardware support for SSE4.1 on this machine.")
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endif(NOT SSE4_1_FOUND)
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mark_as_advanced(SSE2_FOUND SSE3_FOUND SSSE3_FOUND SSE4_1_FOUND)
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