mirror of https://github.com/PentHertz/srsLTE.git
85 lines
3.2 KiB
CMake
85 lines
3.2 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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# Minimum requirement to enable SSE turbo decoder is SSE4.1
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# Since SSE 4.1 includes all previous SSE, look only for this one.
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# Check also AVX availability (for equalizer)
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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 "^.*(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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STRING(REGEX REPLACE "^.*(avx).*$" "\\1" SSE_THERE ${CPUINFO})
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STRING(COMPARE EQUAL "avx" "${SSE_THERE}" AVX_TRUE)
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IF (AVX_TRUE)
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set(AVX_FOUND true CACHE BOOL "AVX available on host")
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ELSE (AVX_TRUE)
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set(AVX_FOUND false CACHE BOOL "AVX available on host")
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ENDIF (AVX_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 "^.*(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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STRING(REGEX REPLACE "^.*(AVX).*$" "\\1" SSE_THERE ${CPUINFO})
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STRING(COMPARE EQUAL "AVX" "${SSE_THERE}" AVX_TRUE)
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IF (AVX_TRUE)
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set(AVX_FOUND true CACHE BOOL "AVX available on host")
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ELSE (AVX_TRUE)
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set(AVX_FOUND false CACHE BOOL "AVX available on host")
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ENDIF (AVX_TRUE)
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ELSEIF(CMAKE_SYSTEM_NAME MATCHES "Windows")
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# TODO
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set(SSE4_2_FOUND false CACHE BOOL "SSE4.2 available on host")
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set(SSE4_1_FOUND false CACHE BOOL "SSE4.1 available on host")
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set(AVX_FOUND false CACHE BOOL "AVX available on host")
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ELSE(CMAKE_SYSTEM_NAME MATCHES "Linux")
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set(SSE4_1_FOUND false CACHE BOOL "SSE4.1 available on host")
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set(AVX_FOUND false CACHE BOOL "AVX available on host")
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ENDIF(CMAKE_SYSTEM_NAME MATCHES "Linux")
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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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if(NOT SSE4_2_FOUND)
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MESSAGE(STATUS "Could not find hardware support for SSE4.2 on this machine.")
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endif(NOT SSE4_2_FOUND)
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if(NOT AVX_FOUND)
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MESSAGE(STATUS "Could not find hardware support for AVX on this machine.")
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endif(NOT AVX_FOUND)
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mark_as_advanced(SSE4_1_FOUND AVX_FOUND)
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