diff options
Diffstat (limited to 'src/ceph/cmake/modules/SIMDExt.cmake')
| -rw-r--r-- | src/ceph/cmake/modules/SIMDExt.cmake | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/src/ceph/cmake/modules/SIMDExt.cmake b/src/ceph/cmake/modules/SIMDExt.cmake new file mode 100644 index 0000000..5330835 --- /dev/null +++ b/src/ceph/cmake/modules/SIMDExt.cmake @@ -0,0 +1,123 @@ +# detect SIMD extentions +# +# HAVE_ARMV8_CRC +# HAVE_ARMV8_SIMD +# HAVE_ARM_NEON +# HAVE_INTEL_SSE +# HAVE_INTEL_SSE2 +# HAVE_INTEL_SSE3 +# HAVE_INTEL_SSSE3 +# HAVE_INTEL_PCLMUL +# HAVE_INTEL_SSE4_1 +# HAVE_INTEL_SSE4_2 +# +# SIMD_COMPILE_FLAGS +# + +if(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|AARCH64") + set(HAVE_ARM 1) + set(save_quiet ${CMAKE_REQUIRED_QUIET}) + set(CMAKE_REQUIRED_QUIET true) + include(CheckCXXSourceCompiles) + + check_cxx_source_compiles(" + #define CRC32CX(crc, value) __asm__(\"crc32cx %w[c], %w[c], %x[v]\":[c]\"+r\"(crc):[v]\"r\"(value)) + asm(\".arch_extension crc\"); + unsigned int foo(unsigned int ret) { + CRC32CX(ret, 0); + return ret; + } + int main() { foo(0); }" HAVE_ARMV8_CRC) + check_cxx_source_compiles(" + asm(\".arch_extension crypto\"); + unsigned int foo(unsigned int ret) { + __asm__(\"pmull v2.1q, v2.1d, v1.1d\"); + return ret; + } + int main() { foo(0); }" HAVE_ARMV8_CRYPTO) + + set(CMAKE_REQUIRED_QUIET ${save_quiet}) + if(HAVE_ARMV8_CRC) + message(STATUS " aarch64 crc extensions supported") + endif() + + if(HAVE_ARMV8_CRYPTO) + message(STATUS " aarch64 crypto extensions supported") + endif() + CHECK_C_COMPILER_FLAG(-march=armv8-a+crc+crypto HAVE_ARMV8_CRC_CRYPTO_MARCH) + + # don't believe only the -march support; gcc 4.8.5 on RHEL/CentOS says + # it supports +crc but hasn't got the intrinsics or arm_acle.h. Test for + # the actual presence of one of the intrinsic functions. + if(HAVE_ARMV8_CRC_CRYPTO_MARCH) + check_cxx_source_compiles(" + #include <inttypes.h> + int main() { uint32_t a; uint8_t b; __builtin_aarch64_crc32b(a, b); } + " HAVE_ARMV8_CRC_CRYPTO_INTRINSICS) + endif() + + if(HAVE_ARMV8_CRC_CRYPTO_INTRINSICS) + message(STATUS " aarch64 crc+crypto intrinsics supported") + set(ARMV8_CRC_COMPILE_FLAGS "${ARMV8_CRC_COMPILE_FLAGS} -march=armv8-a+crc+crypto") + endif() + + CHECK_C_COMPILER_FLAG(-march=armv8-a+simd HAVE_ARMV8_SIMD) + if(HAVE_ARMV8_SIMD) + set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -march=armv8-a+simd") + endif() + +elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "arm|ARM") + set(HAVE_ARM 1) + CHECK_C_COMPILER_FLAG(-mfpu=neon HAVE_ARM_NEON) + if(HAVE_ARM_NEON) + set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -mfpu=neon") + endif() + +elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "i386|i686|amd64|x86_64|AMD64") + set(HAVE_INTEL 1) + if(CMAKE_SYSTEM_PROCESSOR MATCHES "i686|amd64|x86_64|AMD64") + CHECK_C_COMPILER_FLAG(-msse HAVE_INTEL_SSE) + if(HAVE_INTEL_SSE) + set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -msse") + endif() + if(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64|x86_64|AMD64") + CHECK_C_COMPILER_FLAG(-msse2 HAVE_INTEL_SSE2) + if(HAVE_INTEL_SSE2) + set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -msse2") + endif() + CHECK_C_COMPILER_FLAG(-msse3 HAVE_INTEL_SSE3) + if(HAVE_INTEL_SSE3) + set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -msse3") + endif() + CHECK_C_COMPILER_FLAG(-mssse3 HAVE_INTEL_SSSE3) + if(HAVE_INTEL_SSSE3) + set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -mssse3") + endif() + CHECK_C_COMPILER_FLAG(-mpclmul HAVE_INTEL_PCLMUL) + if(HAVE_INTEL_PCLMUL) + set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -mpclmul") + endif() + CHECK_C_COMPILER_FLAG(-msse4.1 HAVE_INTEL_SSE4_1) + if(HAVE_INTEL_SSE4_1) + set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -msse4.1") + endif() + CHECK_C_COMPILER_FLAG(-msse4.2 HAVE_INTEL_SSE4_2) + if(HAVE_INTEL_SSE4_2) + set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -msse4.2") + endif() + endif(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64|x86_64|AMD64") + endif(CMAKE_SYSTEM_PROCESSOR MATCHES "i686|amd64|x86_64|AMD64") +elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "(powerpc|ppc)64le") + set(HAVE_PPC64LE 1) + message(STATUS " we are ppc64le") + CHECK_C_COMPILER_FLAG("-maltivec" HAS_ALTIVEC) + if(HAS_ALTIVEC) + message(STATUS " HAS_ALTIVEC yes") + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -maltivec") + set(CMAKE_CXX_FLAGS "${CMAKE_C_FLAGS} -maltivec") + endif() + CHECK_C_COMPILER_FLAG("-mcpu=power8" HAVE_POWER8) + if(HAVE_POWER8) + message(STATUS " HAVE_POWER8 yes") + endif() +endif() |