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ceph/cmake/modules/SIMDExt.cmake

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CMake
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cmake: pass -DINTEL* to gf-complete cflags * in addition to the -march=foobar, we also need to pass -DFOOBAR to gf-complete sources' cflags, so that the SIMD instructions can be generated as expected. * also extract the compiler support for instruction extensions detections into SIMDExt.cmake. * and only check the compiler support if CMAKE_SYSTEM_PROCESSOR matches with the instruction-set/arch to be checked. Signed-off-by: tone.zhang <tone.zhang@linaro.org> Signed-off-by: Kefu Chai <kchai@redhat.com>
2016-09-02 06:38:21 +00:00
# detect SIMD extentions
#
# ARM_NEON_FLAGS
#
# HAVE_ARMV8_CRC
# HAVE_NEON
# HAVE_SSE
# HAVE_SSE2
#
# INTEL_SSE4_1
# INTEL_SSE4_2
#
# SSE3_FLAGS
# SSE4_FLAGS
#
if(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|AARCH64")
CHECK_C_COMPILER_FLAG(-march=armv8-a+crc HAVE_ARMV8_CRC)
if(HAVE_ARMV8_CRC)
Set ARM_CRC_FLAGS from the CRC test rather than ARM_NEON_FLAGS Fixes: http://tracker.ceph.com/issues/17250 Signed-off-by: Dan Mick <dan.mick@redhat.com>
2016-09-09 03:28:55 +00:00
set(ARM_CRC_FLAGS "-march=armv8-a+crc -DARCH_AARCH64")
cmake: pass -DINTEL* to gf-complete cflags * in addition to the -march=foobar, we also need to pass -DFOOBAR to gf-complete sources' cflags, so that the SIMD instructions can be generated as expected. * also extract the compiler support for instruction extensions detections into SIMDExt.cmake. * and only check the compiler support if CMAKE_SYSTEM_PROCESSOR matches with the instruction-set/arch to be checked. Signed-off-by: tone.zhang <tone.zhang@linaro.org> Signed-off-by: Kefu Chai <kchai@redhat.com>
2016-09-02 06:38:21 +00:00
endif()
CHECK_C_COMPILER_FLAG(-march=armv8-a+simd HAVE_NEON)
if(HAVE_NEON)
set(ARM_NEON_FLAGS "-march=armv8-a+simd -DARCH_AARCH64 -DARM_NEON")
endif()
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "arm|ARM")
CHECK_C_COMPILER_FLAG(-mfpu=neon HAVE_NEON)
if(HAVE_NEON)
set(ARM_NEON_FLAGS "-mfpu=neon -DARM_NEON")
endif()
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "i386|i686|amd64|x86_64|AMD64")
set(SSE3_FLAGS)
CHECK_C_COMPILER_FLAG(-msse HAVE_SSE)
if(HAVE_SSE)
set(SSE3_FLAGS "${SSE3_FLAGS} -msse -DINTEL_SSE")
endif()
CHECK_C_COMPILER_FLAG(-msse2 HAVE_SSE2)
if(HAVE_SSE2)
set(SSE3_FLAGS "${SSE3_FLAGS} -msse2 -DINTEL_SSE2")
endif()
CHECK_C_COMPILER_FLAG(-msse3 HAVE_SSE3)
if(HAVE_SSE3)
set(SSE3_FLAGS "${SSE3_FLAGS} -msse3 -DINTEL_SSE3")
endif()
CHECK_C_COMPILER_FLAG(-mssse3 SUPPORTS_SSSE3)
if(SUPPORTS_SSSE3)
set(SSE3_FLAGS "${SSE3_FLAGS} -mssse3 -DINTEL_SSSE3")
endif()
# pclmul is not enabled in SSE3, otherwise we need another
# flavor or an cmake option for enabling it
set(SSE4_FLAGS ${SSE3_FLAGS})
CHECK_C_COMPILER_FLAG(-msse4.1 INTEL_SSE4_1)
if(SUPPORTS_SSE41)
set(SSE4_FLAGS "${SSE4_FLAGS} -msse41 -DINTEL_SSE4")
endif()
CHECK_C_COMPILER_FLAG(-msse4.2 INTEL_SSE4_2)
if(SUPPORTS_SSE42)
set(SSE4_FLAGS "${SSE4_FLAGS} -msse42 -DINTEL_SSE4")
endif()
endif()