From 8cdf8dec703d882b46ca50a769fabb95ffc48e2c Mon Sep 17 00:00:00 2001 From: manuel Date: Thu, 24 Nov 2016 21:27:41 +0100 Subject: sync with upstream --- project/cmake/modules/FindSSE.cmake | 238 +++++++++++++++++++++--------------- 1 file changed, 138 insertions(+), 100 deletions(-) (limited to 'project/cmake/modules/FindSSE.cmake') diff --git a/project/cmake/modules/FindSSE.cmake b/project/cmake/modules/FindSSE.cmake index c76b811..0554663 100644 --- a/project/cmake/modules/FindSSE.cmake +++ b/project/cmake/modules/FindSSE.cmake @@ -1,105 +1,143 @@ # Check if SSE instructions are available on the machine where # the project is compiled. +include(TestCXXAcceptsFlag) -IF(CMAKE_SYSTEM_NAME MATCHES "Linux") - EXEC_PROGRAM(cat ARGS "/proc/cpuinfo" OUTPUT_VARIABLE CPUINFO) - - STRING(REGEX REPLACE "^.*(sse2).*$" "\\1" SSE_THERE ${CPUINFO}) - STRING(COMPARE EQUAL "sse2" "${SSE_THERE}" SSE2_TRUE) - IF (SSE2_TRUE) - set(SSE2_FOUND true CACHE BOOL "SSE2 available on host") - ELSE (SSE2_TRUE) - set(SSE2_FOUND false CACHE BOOL "SSE2 available on host") - ENDIF (SSE2_TRUE) - - # /proc/cpuinfo apparently omits sse3 :( - STRING(REGEX REPLACE "^.*[^s](sse3).*$" "\\1" SSE_THERE ${CPUINFO}) - STRING(COMPARE EQUAL "sse3" "${SSE_THERE}" SSE3_TRUE) - IF (NOT SSE3_TRUE) - STRING(REGEX REPLACE "^.*(T2300).*$" "\\1" SSE_THERE ${CPUINFO}) - STRING(COMPARE EQUAL "T2300" "${SSE_THERE}" SSE3_TRUE) - ENDIF (NOT SSE3_TRUE) - - STRING(REGEX REPLACE "^.*(ssse3).*$" "\\1" SSE_THERE ${CPUINFO}) - STRING(COMPARE EQUAL "ssse3" "${SSE_THERE}" SSSE3_TRUE) - IF (SSE3_TRUE OR SSSE3_TRUE) - set(SSE3_FOUND true CACHE BOOL "SSE3 available on host") - ELSE (SSE3_TRUE OR SSSE3_TRUE) - set(SSE3_FOUND false CACHE BOOL "SSE3 available on host") - ENDIF (SSE3_TRUE OR SSSE3_TRUE) - IF (SSSE3_TRUE) - set(SSSE3_FOUND true CACHE BOOL "SSSE3 available on host") - ELSE (SSSE3_TRUE) - set(SSSE3_FOUND false CACHE BOOL "SSSE3 available on host") - ENDIF (SSSE3_TRUE) - - STRING(REGEX REPLACE "^.*(sse4_1).*$" "\\1" SSE_THERE ${CPUINFO}) - STRING(COMPARE EQUAL "sse4_1" "${SSE_THERE}" SSE41_TRUE) - IF (SSE41_TRUE) - set(SSE4_1_FOUND true CACHE BOOL "SSE4.1 available on host") - ELSE (SSE41_TRUE) - set(SSE4_1_FOUND false CACHE BOOL "SSE4.1 available on host") - ENDIF (SSE41_TRUE) -ELSEIF(CMAKE_SYSTEM_NAME MATCHES "Darwin") - EXEC_PROGRAM("/usr/sbin/sysctl -n machdep.cpu.features" OUTPUT_VARIABLE - CPUINFO) - - STRING(REGEX REPLACE "^.*[^S](SSE2).*$" "\\1" SSE_THERE ${CPUINFO}) - STRING(COMPARE EQUAL "SSE2" "${SSE_THERE}" SSE2_TRUE) - IF (SSE2_TRUE) - set(SSE2_FOUND true CACHE BOOL "SSE2 available on host") - ELSE (SSE2_TRUE) - set(SSE2_FOUND false CACHE BOOL "SSE2 available on host") - ENDIF (SSE2_TRUE) - - STRING(REGEX REPLACE "^.*[^S](SSE3).*$" "\\1" SSE_THERE ${CPUINFO}) - STRING(COMPARE EQUAL "SSE3" "${SSE_THERE}" SSE3_TRUE) - IF (SSE3_TRUE) - set(SSE3_FOUND true CACHE BOOL "SSE3 available on host") - ELSE (SSE3_TRUE) - set(SSE3_FOUND false CACHE BOOL "SSE3 available on host") - ENDIF (SSE3_TRUE) - - STRING(REGEX REPLACE "^.*(SSSE3).*$" "\\1" SSE_THERE ${CPUINFO}) - STRING(COMPARE EQUAL "SSSE3" "${SSE_THERE}" SSSE3_TRUE) - IF (SSSE3_TRUE) - set(SSSE3_FOUND true CACHE BOOL "SSSE3 available on host") - ELSE (SSSE3_TRUE) - set(SSSE3_FOUND false CACHE BOOL "SSSE3 available on host") - ENDIF (SSSE3_TRUE) - - STRING(REGEX REPLACE "^.*(SSE4.1).*$" "\\1" SSE_THERE ${CPUINFO}) - STRING(COMPARE EQUAL "SSE4.1" "${SSE_THERE}" SSE41_TRUE) - IF (SSE41_TRUE) - set(SSE4_1_FOUND true CACHE BOOL "SSE4.1 available on host") - ELSE (SSE41_TRUE) - set(SSE4_1_FOUND false CACHE BOOL "SSE4.1 available on host") - ENDIF (SSE41_TRUE) -ELSEIF(CMAKE_SYSTEM_NAME MATCHES "Windows") +if(CMAKE_SYSTEM_NAME MATCHES "Linux") + if(CPU MATCHES "x86_64" OR CPU MATCHES "i.86") + exec_program(cat ARGS "/proc/cpuinfo" OUTPUT_VARIABLE CPUINFO) + + string(REGEX REPLACE "^.*(sse).*$" "\\1" _SSE_THERE ${CPUINFO}) + string(COMPARE EQUAL "sse" "${_SSE_THERE}" _SSE_TRUE) + CHECK_CXX_ACCEPTS_FLAG("-msse" _SSE_OK) + + string(REGEX REPLACE "^.*(sse2).*$" "\\1" _SSE_THERE ${CPUINFO}) + string(COMPARE EQUAL "sse2" "${_SSE_THERE}" _SSE2_TRUE) + CHECK_CXX_ACCEPTS_FLAG("-msse2" _SSE2_OK) + + # /proc/cpuinfo apparently omits sse3 :( + string(REGEX REPLACE "^.*[^s](sse3).*$" "\\1" _SSE_THERE ${CPUINFO}) + string(COMPARE EQUAL "sse3" "${_SSE_THERE}" _SSE3_TRUE) + if(NOT _SSE3_TRUE) + string(REGEX REPLACE "^.*(T2300).*$" "\\1" _SSE_THERE ${CPUINFO}) + string(COMPARE EQUAL "T2300" "${_SSE_THERE}" _SSE3_TRUE) + endif() + CHECK_CXX_ACCEPTS_FLAG("-msse3" _SSE3_OK) + + string(REGEX REPLACE "^.*(ssse3).*$" "\\1" _SSE_THERE ${CPUINFO}) + string(COMPARE EQUAL "ssse3" "${_SSE_THERE}" _SSSE3_TRUE) + CHECK_CXX_ACCEPTS_FLAG("-mssse3" _SSSE3_OK) + + string(REGEX REPLACE "^.*(sse4_1).*$" "\\1" _SSE_THERE ${CPUINFO}) + string(COMPARE EQUAL "sse4_1" "${_SSE_THERE}" _SSE41_TRUE) + CHECK_CXX_ACCEPTS_FLAG("-msse4.1" _SSE41_OK) + + string(REGEX REPLACE "^.*(sse4_2).*$" "\\1" _SSE_THERE ${CPUINFO}) + string(COMPARE EQUAL "sse4_2" "${_SSE_THERE}" _SSE42_TRUE) + CHECK_CXX_ACCEPTS_FLAG("-msse4.2" _SSE42_OK) + + string(REGEX REPLACE "^.*(avx).*$" "\\1" _SSE_THERE ${CPUINFO}) + string(COMPARE EQUAL "avx" "${_SSE_THERE}" _AVX_TRUE) + CHECK_CXX_ACCEPTS_FLAG("-mavx" _AVX_OK) + + string(REGEX REPLACE "^.*(avx2).*$" "\\1" _SSE_THERE ${CPUINFO}) + string(COMPARE EQUAL "avx2" "${_SSE_THERE}" _AVX2_TRUE) + CHECK_CXX_ACCEPTS_FLAG("-mavx2" _AVX2_OK) + endif() +elseif(CMAKE_SYSTEM_NAME MATCHES "Darwin") + if(NOT CPU MATCHES "arm") + exec_program("/usr/sbin/sysctl -n machdep.cpu.features machdep.cpu.leaf7_features" OUTPUT_VARIABLE CPUINFO) + + string(REGEX REPLACE "^.*[^S](SSE).*$" "\\1" _SSE_THERE ${CPUINFO}) + string(COMPARE EQUAL "SSE" "${_SSE_THERE}" _SSE_TRUE) + CHECK_CXX_ACCEPTS_FLAG("-msse" _SSE_OK) + + string(REGEX REPLACE "^.*[^S](SSE2).*$" "\\1" _SSE_THERE ${CPUINFO}) + string(COMPARE EQUAL "SSE2" "${_SSE_THERE}" _SSE2_TRUE) + CHECK_CXX_ACCEPTS_FLAG("-msse2" _SSE2_OK) + + string(REGEX REPLACE "^.*[^S](SSE3).*$" "\\1" _SSE_THERE ${CPUINFO}) + string(COMPARE EQUAL "SSE3" "${_SSE_THERE}" _SSE3_TRUE) + CHECK_CXX_ACCEPTS_FLAG("-msse3" _SSE3_OK) + + string(REGEX REPLACE "^.*(SSSE3).*$" "\\1" _SSE_THERE ${CPUINFO}) + string(COMPARE EQUAL "SSSE3" "${_SSE_THERE}" _SSSE3_TRUE) + CHECK_CXX_ACCEPTS_FLAG("-mssse3" _SSSE3_OK) + + string(REGEX REPLACE "^.*(SSE4.1).*$" "\\1" _SSE_THERE ${CPUINFO}) + string(COMPARE EQUAL "SSE4.1" "${_SSE_THERE}" _SSE41_TRUE) + CHECK_CXX_ACCEPTS_FLAG("-msse4.1" _SSE41_OK) + + string(REGEX REPLACE "^.*(SSE4.2).*$" "\\1" _SSE_THERE ${CPUINFO}) + string(COMPARE EQUAL "SSE4.2" "${_SSE_THERE}" _SSE42_TRUE) + CHECK_CXX_ACCEPTS_FLAG("-msse4.2" _SSE42_OK) + + string(REGEX REPLACE "^.*(AVX).*$" "\\1" _SSE_THERE ${CPUINFO}) + string(COMPARE EQUAL "AVX" "${_SSE_THERE}" _AVX_TRUE) + CHECK_CXX_ACCEPTS_FLAG("-mavx" _AVX_OK) + + string(REGEX REPLACE "^.*(AVX2).*$" "\\1" _SSE_THERE ${CPUINFO}) + string(COMPARE EQUAL "AVX2" "${_SSE_THERE}" _AVX2_TRUE) + CHECK_CXX_ACCEPTS_FLAG("-mavx2" _AVX2_OK) + endif() +elseif(CMAKE_SYSTEM_NAME MATCHES "Windows") # TODO - set(SSE2_FOUND true CACHE BOOL "SSE2 available on host") - set(SSE3_FOUND false CACHE BOOL "SSE3 available on host") - set(SSSE3_FOUND false CACHE BOOL "SSSE3 available on host") - set(SSE4_1_FOUND false CACHE BOOL "SSE4.1 available on host") -ELSE(CMAKE_SYSTEM_NAME MATCHES "Linux") - set(SSE2_FOUND true CACHE BOOL "SSE2 available on host") - set(SSE3_FOUND false CACHE BOOL "SSE3 available on host") - set(SSSE3_FOUND false CACHE BOOL "SSSE3 available on host") - set(SSE4_1_FOUND false CACHE BOOL "SSE4.1 available on host") -ENDIF(CMAKE_SYSTEM_NAME MATCHES "Linux") - -if(NOT SSE2_FOUND) - MESSAGE(STATUS "Could not find hardware support for SSE2 on this machine.") -endif(NOT SSE2_FOUND) -if(NOT SSE3_FOUND) - MESSAGE(STATUS "Could not find hardware support for SSE3 on this machine.") -endif(NOT SSE3_FOUND) -if(NOT SSSE3_FOUND) - MESSAGE(STATUS "Could not find hardware support for SSSE3 on this machine.") -endif(NOT SSSE3_FOUND) -if(NOT SSE4_1_FOUND) - MESSAGE(STATUS "Could not find hardware support for SSE4.1 on this machine.") -endif(NOT SSE4_1_FOUND) - -mark_as_advanced(SSE2_FOUND SSE3_FOUND SSSE3_FOUND SSE4_1_FOUND) + set(_SSE_TRUE true) + set(_SSE_OK true) + set(_SSE2_TRUE true) + set(_SSE2_OK true) +endif() + +include(FindPackageHandleStandardArgs) +find_package_handle_standard_args(SSE + REQUIRED_VARS _SSE_TRUE _SSE_OK + FAIL_MESSAGE "Could not find hardware support for SSE") +find_package_handle_standard_args(SSE2 + REQUIRED_VARS _SSE2_TRUE _SSE2_OK + FAIL_MESSAGE "Could not find hardware support for SSE2") +find_package_handle_standard_args(SSE3 + REQUIRED_VARS _SSE3_TRUE _SSE3_OK + FAIL_MESSAGE "Could not find hardware support for SSE3") +find_package_handle_standard_args(SSSE3 + REQUIRED_VARS _SSSE3_TRUE _SSSE3_OK + FAIL_MESSAGE "Could not find hardware support for SSSE3") +find_package_handle_standard_args(SSE4_1 + REQUIRED_VARS _SSE41_TRUE _SSE41_OK + FAIL_MESSAGE "Could not find hardware support for SSE4.1") +find_package_handle_standard_args(SSE4_2 + REQUIRED_VARS _SSE42_TRUE _SSE42_OK + FAIL_MESSAGE "Could not find hardware support for SSE4.2") +find_package_handle_standard_args(AVX + REQUIRED_VARS _AVX_TRUE _AVX_OK + FAIL_MESSAGE "Could not find hardware support for AVX") +find_package_handle_standard_args(AVX2 + REQUIRED_VARS _AVX2_TRUE _AVX2_OK + FAIL_MESSAGE "Could not find hardware support for AVX2") + +mark_as_advanced(SSE2_FOUND SSE3_FOUND SSSE3_FOUND SSE4_1_FOUND SSE4_2_FOUND AVX_FOUND AVX2_FOUND) + +unset(_SSE_THERE) +unset(_SSE_TRUE) +unset(_SSE_OK) +unset(_SSE_OK CACHE) +unset(_SSE2_TRUE) +unset(_SSE2_OK) +unset(_SSE2_OK CACHE) +unset(_SSE3_TRUE) +unset(_SSE3_OK) +unset(_SSE3_OK CACHE) +unset(_SSSE3_TRUE) +unset(_SSSE3_OK) +unset(_SSSE3_OK CACHE) +unset(_SSE4_1_TRUE) +unset(_SSE41_OK) +unset(_SSE41_OK CACHE) +unset(_SSE4_2_TRUE) +unset(_SSE42_OK) +unset(_SSE42_OK CACHE) +unset(_AVX_TRUE) +unset(_AVX_OK) +unset(_AVX_OK CACHE) +unset(_AVX2_TRUE) +unset(_AVX2_OK) +unset(_AVX2_OK CACHE) -- cgit v1.2.3