mirror of https://github.com/ceph/ceph
67 lines
1.7 KiB
CMake
67 lines
1.7 KiB
CMake
# detect SIMD extentions
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#
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# ARM_NEON_FLAGS
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#
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# HAVE_ARMV8_CRC
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# HAVE_NEON
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# HAVE_SSE
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# HAVE_SSE2
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#
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# INTEL_SSE4_1
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# INTEL_SSE4_2
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#
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# SSE3_FLAGS
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# SSE4_FLAGS
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#
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if(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|AARCH64")
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CHECK_C_COMPILER_FLAG(-march=armv8-a+crc HAVE_ARMV8_CRC)
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if(HAVE_ARMV8_CRC)
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set(ARM_CRC_FLAGS "-march=armv8-a+crc -DARCH_AARCH64")
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endif()
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CHECK_C_COMPILER_FLAG(-march=armv8-a+simd HAVE_NEON)
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if(HAVE_NEON)
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set(ARM_NEON_FLAGS "-march=armv8-a+simd -DARCH_AARCH64 -DARM_NEON")
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endif()
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "arm|ARM")
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CHECK_C_COMPILER_FLAG(-mfpu=neon HAVE_NEON)
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if(HAVE_NEON)
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set(ARM_NEON_FLAGS "-mfpu=neon -DARM_NEON")
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endif()
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "i386|i686|amd64|x86_64|AMD64")
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set(SSE3_FLAGS)
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CHECK_C_COMPILER_FLAG(-msse HAVE_SSE)
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if(HAVE_SSE)
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set(SSE3_FLAGS "${SSE3_FLAGS} -msse -DINTEL_SSE")
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endif()
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CHECK_C_COMPILER_FLAG(-msse2 HAVE_SSE2)
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if(HAVE_SSE2)
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set(SSE3_FLAGS "${SSE3_FLAGS} -msse2 -DINTEL_SSE2")
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endif()
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CHECK_C_COMPILER_FLAG(-msse3 HAVE_SSE3)
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if(HAVE_SSE3)
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set(SSE3_FLAGS "${SSE3_FLAGS} -msse3 -DINTEL_SSE3")
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endif()
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CHECK_C_COMPILER_FLAG(-mssse3 SUPPORTS_SSSE3)
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if(SUPPORTS_SSSE3)
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set(SSE3_FLAGS "${SSE3_FLAGS} -mssse3 -DINTEL_SSSE3")
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endif()
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# pclmul is not enabled in SSE3, otherwise we need another
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# flavor or an cmake option for enabling it
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set(SSE4_FLAGS ${SSE3_FLAGS})
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CHECK_C_COMPILER_FLAG(-msse4.1 INTEL_SSE4_1)
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if(SUPPORTS_SSE41)
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set(SSE4_FLAGS "${SSE4_FLAGS} -msse41 -DINTEL_SSE4")
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endif()
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CHECK_C_COMPILER_FLAG(-msse4.2 INTEL_SSE4_2)
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if(SUPPORTS_SSE42)
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set(SSE4_FLAGS "${SSE4_FLAGS} -msse42 -DINTEL_SSE4")
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endif()
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endif()
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