mirror of
https://github.com/ceph/ceph
synced 2024-12-30 07:23:11 +00:00
120 lines
3.7 KiB
CMake
120 lines
3.7 KiB
CMake
# detect SIMD extentions
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#
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# HAVE_ARMV8_CRC
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# HAVE_ARMV8_SIMD
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# HAVE_ARM_NEON
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# HAVE_INTEL_SSE
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# HAVE_INTEL_SSE2
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# HAVE_INTEL_SSE3
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# HAVE_INTEL_SSSE3
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# HAVE_INTEL_PCLMUL
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# HAVE_INTEL_SSE4_1
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# HAVE_INTEL_SSE4_2
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#
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# SIMD_COMPILE_FLAGS
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#
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if(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|AARCH64")
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set(HAVE_ARM 1)
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set(save_quiet ${CMAKE_REQUIRED_QUIET})
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set(CMAKE_REQUIRED_QUIET true)
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include(CheckCXXSourceCompiles)
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check_cxx_source_compiles("
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#define CRC32CX(crc, value) __asm__(\"crc32cx %w[c], %w[c], %x[v]\":[c]\"+r\"(crc):[v]\"r\"(value))
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asm(\".arch_extension crc\");
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unsigned int foo(unsigned int ret) {
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CRC32CX(ret, 0);
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return ret;
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}
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int main() { foo(0); }" HAVE_ARMV8_CRC)
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check_cxx_source_compiles("
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asm(\".arch_extension crypto\");
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unsigned int foo(unsigned int ret) {
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__asm__(\"pmull v2.1q, v2.1d, v1.1d\");
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return ret;
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}
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int main() { foo(0); }" HAVE_ARMV8_CRYPTO)
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set(CMAKE_REQUIRED_QUIET ${save_quiet})
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if(HAVE_ARMV8_CRC)
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message(STATUS " aarch64 crc extensions supported")
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endif()
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if(HAVE_ARMV8_CRYPTO)
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message(STATUS " aarch64 crypto extensions supported")
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endif()
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CHECK_C_COMPILER_FLAG(-march=armv8-a+crc+crypto HAVE_ARMV8_CRC_CRYPTO_MARCH)
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# don't believe only the -march support; gcc 4.8.5 on RHEL/CentOS says
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# it supports +crc but hasn't got the intrinsics or arm_acle.h. Test for
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# the actual presence of one of the intrinsic functions.
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if(HAVE_ARMV8_CRC_CRYPTO_MARCH)
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check_cxx_source_compiles("
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#include <inttypes.h>
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int main() { uint32_t a; uint8_t b; __builtin_aarch64_crc32b(a, b); }
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" HAVE_ARMV8_CRC_CRYPTO_INTRINSICS)
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endif()
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if(HAVE_ARMV8_CRC_CRYPTO_INTRINSICS)
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message(STATUS " aarch64 crc+crypto intrinsics supported")
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set(ARMV8_CRC_COMPILE_FLAGS "${ARMV8_CRC_COMPILE_FLAGS} -march=armv8-a+crc+crypto")
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endif()
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CHECK_C_COMPILER_FLAG(-march=armv8-a+simd HAVE_ARMV8_SIMD)
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if(HAVE_ARMV8_SIMD)
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set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -march=armv8-a+simd")
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endif()
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "arm|ARM")
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set(HAVE_ARM 1)
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CHECK_C_COMPILER_FLAG(-mfpu=neon HAVE_ARM_NEON)
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if(HAVE_ARM_NEON)
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set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -mfpu=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(HAVE_INTEL 1)
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CHECK_C_COMPILER_FLAG(-msse HAVE_INTEL_SSE)
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if(HAVE_INTEL_SSE)
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set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -msse")
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endif()
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CHECK_C_COMPILER_FLAG(-msse2 HAVE_INTEL_SSE2)
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if(HAVE_INTEL_SSE2)
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set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -msse2")
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endif()
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CHECK_C_COMPILER_FLAG(-msse3 HAVE_INTEL_SSE3)
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if(HAVE_INTEL_SSE3)
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set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -msse3")
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endif()
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CHECK_C_COMPILER_FLAG(-mssse3 HAVE_INTEL_SSSE3)
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if(HAVE_INTEL_SSSE3)
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set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -mssse3")
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endif()
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CHECK_C_COMPILER_FLAG(-mpclmul HAVE_INTEL_PCLMUL)
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if(HAVE_INTEL_PCLMUL)
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set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -mpclmul")
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endif()
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CHECK_C_COMPILER_FLAG(-msse4.1 HAVE_INTEL_SSE4_1)
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if(HAVE_INTEL_SSE4_1)
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set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -msse4.1")
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endif()
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CHECK_C_COMPILER_FLAG(-msse4.2 HAVE_INTEL_SSE4_2)
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if(HAVE_INTEL_SSE4_2)
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set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -msse4.2")
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endif()
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "(powerpc|ppc)64le")
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set(HAVE_PPC64LE 1)
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message(STATUS " we are ppc64le")
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CHECK_C_COMPILER_FLAG("-maltivec" HAS_ALTIVEC)
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if(HAS_ALTIVEC)
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message(STATUS " HAS_ALTIVEC yes")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -maltivec")
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set(CMAKE_CXX_FLAGS "${CMAKE_C_FLAGS} -maltivec")
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endif()
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CHECK_C_COMPILER_FLAG("-mcpu=power8" HAVE_POWER8)
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if(HAVE_POWER8)
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message(STATUS " HAVE_POWER8 yes")
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endif()
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endif()
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