|
| 1 | +# Check if SSE instructions are available on the machine where |
| 2 | +# the project is compiled. |
| 3 | +# from https://raw.githubusercontent.com/hideo55/CMake-FindSSE/master/FindSSE.cmake |
| 4 | + |
| 5 | +MACRO (FindSSE) |
| 6 | + |
| 7 | +IF(CMAKE_SYSTEM_NAME MATCHES "Linux") |
| 8 | + EXEC_PROGRAM(cat ARGS "/proc/cpuinfo" OUTPUT_VARIABLE CPUINFO) |
| 9 | + |
| 10 | + STRING(REGEX REPLACE "^.*(sse2).*$" "\\1" SSE_THERE ${CPUINFO}) |
| 11 | + STRING(COMPARE EQUAL "sse2" "${SSE_THERE}" SSE2_TRUE) |
| 12 | + IF (SSE2_TRUE) |
| 13 | + set(SSE2_FOUND true CACHE BOOL "SSE2 available on host") |
| 14 | + ELSE (SSE2_TRUE) |
| 15 | + set(SSE2_FOUND false CACHE BOOL "SSE2 available on host") |
| 16 | + ENDIF (SSE2_TRUE) |
| 17 | + |
| 18 | + # /proc/cpuinfo apparently omits sse3 :( |
| 19 | + STRING(REGEX REPLACE "^.*[^s](sse3).*$" "\\1" SSE_THERE ${CPUINFO}) |
| 20 | + STRING(COMPARE EQUAL "sse3" "${SSE_THERE}" SSE3_TRUE) |
| 21 | + IF (NOT SSE3_TRUE) |
| 22 | + STRING(REGEX REPLACE "^.*(T2300).*$" "\\1" SSE_THERE ${CPUINFO}) |
| 23 | + STRING(COMPARE EQUAL "T2300" "${SSE_THERE}" SSE3_TRUE) |
| 24 | + ENDIF (NOT SSE3_TRUE) |
| 25 | + |
| 26 | + STRING(REGEX REPLACE "^.*(ssse3).*$" "\\1" SSE_THERE ${CPUINFO}) |
| 27 | + STRING(COMPARE EQUAL "ssse3" "${SSE_THERE}" SSSE3_TRUE) |
| 28 | + IF (SSE3_TRUE OR SSSE3_TRUE) |
| 29 | + set(SSE3_FOUND true CACHE BOOL "SSE3 available on host") |
| 30 | + ELSE (SSE3_TRUE OR SSSE3_TRUE) |
| 31 | + set(SSE3_FOUND false CACHE BOOL "SSE3 available on host") |
| 32 | + ENDIF (SSE3_TRUE OR SSSE3_TRUE) |
| 33 | + IF (SSSE3_TRUE) |
| 34 | + set(SSSE3_FOUND true CACHE BOOL "SSSE3 available on host") |
| 35 | + ELSE (SSSE3_TRUE) |
| 36 | + set(SSSE3_FOUND false CACHE BOOL "SSSE3 available on host") |
| 37 | + ENDIF (SSSE3_TRUE) |
| 38 | + |
| 39 | + STRING(REGEX REPLACE "^.*(sse4_1).*$" "\\1" SSE_THERE ${CPUINFO}) |
| 40 | + STRING(COMPARE EQUAL "sse4_1" "${SSE_THERE}" SSE41_TRUE) |
| 41 | + IF (SSE41_TRUE) |
| 42 | + set(SSE4_1_FOUND true CACHE BOOL "SSE4.1 available on host") |
| 43 | + ELSE (SSE41_TRUE) |
| 44 | + set(SSE4_1_FOUND false CACHE BOOL "SSE4.1 available on host") |
| 45 | + ENDIF (SSE41_TRUE) |
| 46 | + |
| 47 | + STRING(REGEX REPLACE "^.*(sse4_2).*$" "\\1" SSE_THERE ${CPUINFO}) |
| 48 | + STRING(COMPARE EQUAL "sse4_2" "${SSE_THERE}" SSE42_TRUE) |
| 49 | + IF (SSE42_TRUE) |
| 50 | + set(SSE4_2_FOUND true CACHE BOOL "SSE4.2 available on host") |
| 51 | + ELSE (SSE42_TRUE) |
| 52 | + set(SSE4_2_FOUND false CACHE BOOL "SSE4.2 available on host") |
| 53 | + ENDIF (SSE42_TRUE) |
| 54 | + |
| 55 | +ELSEIF(CMAKE_SYSTEM_NAME MATCHES "Darwin") |
| 56 | + EXEC_PROGRAM("/usr/sbin/sysctl -n machdep.cpu.features" OUTPUT_VARIABLE |
| 57 | + CPUINFO) |
| 58 | + |
| 59 | + STRING(REGEX REPLACE "^.*[^S](SSE2).*$" "\\1" SSE_THERE ${CPUINFO}) |
| 60 | + STRING(COMPARE EQUAL "SSE2" "${SSE_THERE}" SSE2_TRUE) |
| 61 | + IF (SSE2_TRUE) |
| 62 | + set(SSE2_FOUND true CACHE BOOL "SSE2 available on host") |
| 63 | + ELSE (SSE2_TRUE) |
| 64 | + set(SSE2_FOUND false CACHE BOOL "SSE2 available on host") |
| 65 | + ENDIF (SSE2_TRUE) |
| 66 | + |
| 67 | + STRING(REGEX REPLACE "^.*[^S](SSE3).*$" "\\1" SSE_THERE ${CPUINFO}) |
| 68 | + STRING(COMPARE EQUAL "SSE3" "${SSE_THERE}" SSE3_TRUE) |
| 69 | + IF (SSE3_TRUE) |
| 70 | + set(SSE3_FOUND true CACHE BOOL "SSE3 available on host") |
| 71 | + ELSE (SSE3_TRUE) |
| 72 | + set(SSE3_FOUND false CACHE BOOL "SSE3 available on host") |
| 73 | + ENDIF (SSE3_TRUE) |
| 74 | + |
| 75 | + STRING(REGEX REPLACE "^.*(SSSE3).*$" "\\1" SSE_THERE ${CPUINFO}) |
| 76 | + STRING(COMPARE EQUAL "SSSE3" "${SSE_THERE}" SSSE3_TRUE) |
| 77 | + IF (SSSE3_TRUE) |
| 78 | + set(SSSE3_FOUND true CACHE BOOL "SSSE3 available on host") |
| 79 | + ELSE (SSSE3_TRUE) |
| 80 | + set(SSSE3_FOUND false CACHE BOOL "SSSE3 available on host") |
| 81 | + ENDIF (SSSE3_TRUE) |
| 82 | + |
| 83 | + STRING(REGEX REPLACE "^.*(SSE4.1).*$" "\\1" SSE_THERE ${CPUINFO}) |
| 84 | + STRING(COMPARE EQUAL "SSE4.1" "${SSE_THERE}" SSE41_TRUE) |
| 85 | + IF (SSE41_TRUE) |
| 86 | + set(SSE4_1_FOUND true CACHE BOOL "SSE4.1 available on host") |
| 87 | + ELSE (SSE41_TRUE) |
| 88 | + set(SSE4_1_FOUND false CACHE BOOL "SSE4.1 available on host") |
| 89 | + ENDIF (SSE41_TRUE) |
| 90 | + |
| 91 | + STRING(REGEX REPLACE "^.*(SSE4.2).*$" "\\1" SSE_THERE ${CPUINFO}) |
| 92 | + STRING(COMPARE EQUAL "SSE4.2" "${SSE_THERE}" SSE42_TRUE) |
| 93 | + IF (SSE42_TRUE) |
| 94 | + set(SSE4_2_FOUND true CACHE BOOL "SSE4.2 available on host") |
| 95 | + ELSE (SSE42_TRUE) |
| 96 | + set(SSE4_2_FOUND false CACHE BOOL "SSE4.2 available on host") |
| 97 | + ENDIF (SSE42_TRUE) |
| 98 | + |
| 99 | +ELSEIF(CMAKE_SYSTEM_NAME MATCHES "Windows") |
| 100 | + # TODO |
| 101 | + set(SSE2_FOUND true CACHE BOOL "SSE2 available on host") |
| 102 | + set(SSE3_FOUND false CACHE BOOL "SSE3 available on host") |
| 103 | + set(SSSE3_FOUND false CACHE BOOL "SSSE3 available on host") |
| 104 | + set(SSE4_1_FOUND false CACHE BOOL "SSE4.1 available on host") |
| 105 | + set(SSE4_2_FOUND false CACHE BOOL "SSE4.2 available on host") |
| 106 | +ELSE(CMAKE_SYSTEM_NAME MATCHES "Linux") |
| 107 | + set(SSE2_FOUND true CACHE BOOL "SSE2 available on host") |
| 108 | + set(SSE3_FOUND false CACHE BOOL "SSE3 available on host") |
| 109 | + set(SSSE3_FOUND false CACHE BOOL "SSSE3 available on host") |
| 110 | + set(SSE4_1_FOUND false CACHE BOOL "SSE4.1 available on host") |
| 111 | + set(SSE4_2_FOUND false CACHE BOOL "SSE4.2 available on host") |
| 112 | +ENDIF(CMAKE_SYSTEM_NAME MATCHES "Linux") |
| 113 | + |
| 114 | +IF(CMAKE_COMPILER_IS_GNUCXX) |
| 115 | + EXECUTE_PROCESS(COMMAND ${CMAKE_CXX_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION) |
| 116 | + IF(GCC_VERSION VERSION_LESS 4.2) |
| 117 | + set(SSE4_1_FOUND false CACHE BOOL "SSE4.1 available on host" FORCE) |
| 118 | + set(SSE4_2_FOUND false CACHE BOOL "SSE4.2 available on host" FORCE) |
| 119 | + ENDIF() |
| 120 | +ENDIF(CMAKE_COMPILER_IS_GNUCXX) |
| 121 | + |
| 122 | +if(NOT SSE2_FOUND) |
| 123 | + MESSAGE(STATUS "Could not find support for SSE2 on this machine.") |
| 124 | +endif(NOT SSE2_FOUND) |
| 125 | +if(NOT SSE3_FOUND) |
| 126 | + MESSAGE(STATUS "Could not find support for SSE3 on this machine.") |
| 127 | +endif(NOT SSE3_FOUND) |
| 128 | +if(NOT SSSE3_FOUND) |
| 129 | + MESSAGE(STATUS "Could not find support for SSSE3 on this machine.") |
| 130 | +endif(NOT SSSE3_FOUND) |
| 131 | +if(NOT SSE4_1_FOUND) |
| 132 | + MESSAGE(STATUS "Could not find support for SSE4.1 on this machine.") |
| 133 | +endif(NOT SSE4_1_FOUND) |
| 134 | +if(NOT SSE4_2_FOUND) |
| 135 | + MESSAGE(STATUS "Could not find support for SSE4.2 on this machine.") |
| 136 | +endif(NOT SSE4_2_FOUND) |
| 137 | + |
| 138 | +mark_as_advanced(SSE2_FOUND SSE3_FOUND SSSE3_FOUND SSE4_1_FOUND SSE4_2_FOUND) |
| 139 | + |
| 140 | +ENDMACRO(FindSSE) |
| 141 | + |
0 commit comments