| 1 | # Check if SSE instructions are available on the machine where |
| 2 | # the project is compiled. |
| 3 | |
| 4 | IF(CMAKE_SYSTEM_NAME MATCHES "Linux") |
| 5 | EXEC_PROGRAM(cat ARGS "/proc/cpuinfo" OUTPUT_VARIABLE CPUINFO) |
| 6 | |
| 7 | STRING(REGEX REPLACE "^.*(sse2).*$" "\\1" SSE_THERE ${CPUINFO}) |
| 8 | STRING(COMPARE EQUAL "sse2" "${SSE_THERE}" SSE2_TRUE) |
| 9 | IF (SSE2_TRUE) |
| 10 | set(SSE2_FOUND true CACHE BOOL "SSE2 available on host") |
| 11 | ELSE (SSE2_TRUE) |
| 12 | set(SSE2_FOUND false CACHE BOOL "SSE2 available on host") |
| 13 | ENDIF (SSE2_TRUE) |
| 14 | |
| 15 | # /proc/cpuinfo apparently omits sse3 :( |
| 16 | STRING(REGEX REPLACE "^.*[^s](sse3).*$" "\\1" SSE_THERE ${CPUINFO}) |
| 17 | STRING(COMPARE EQUAL "sse3" "${SSE_THERE}" SSE3_TRUE) |
| 18 | IF (NOT SSE3_TRUE) |
| 19 | STRING(REGEX REPLACE "^.*(T2300).*$" "\\1" SSE_THERE ${CPUINFO}) |
| 20 | STRING(COMPARE EQUAL "T2300" "${SSE_THERE}" SSE3_TRUE) |
| 21 | ENDIF (NOT SSE3_TRUE) |
| 22 | |
| 23 | STRING(REGEX REPLACE "^.*(ssse3).*$" "\\1" SSE_THERE ${CPUINFO}) |
| 24 | STRING(COMPARE EQUAL "ssse3" "${SSE_THERE}" SSSE3_TRUE) |
| 25 | IF (SSE3_TRUE OR SSSE3_TRUE) |
| 26 | set(SSE3_FOUND true CACHE BOOL "SSE3 available on host") |
| 27 | ELSE (SSE3_TRUE OR SSSE3_TRUE) |
| 28 | set(SSE3_FOUND false CACHE BOOL "SSE3 available on host") |
| 29 | ENDIF (SSE3_TRUE OR SSSE3_TRUE) |
| 30 | IF (SSSE3_TRUE) |
| 31 | set(SSSE3_FOUND true CACHE BOOL "SSSE3 available on host") |
| 32 | ELSE (SSSE3_TRUE) |
| 33 | set(SSSE3_FOUND false CACHE BOOL "SSSE3 available on host") |
| 34 | ENDIF (SSSE3_TRUE) |
| 35 | |
| 36 | STRING(REGEX REPLACE "^.*(sse4_1).*$" "\\1" SSE_THERE ${CPUINFO}) |
| 37 | STRING(COMPARE EQUAL "sse4_1" "${SSE_THERE}" SSE41_TRUE) |
| 38 | IF (SSE41_TRUE) |
| 39 | set(SSE4_1_FOUND true CACHE BOOL "SSE4.1 available on host") |
| 40 | ELSE (SSE41_TRUE) |
| 41 | set(SSE4_1_FOUND false CACHE BOOL "SSE4.1 available on host") |
| 42 | ENDIF (SSE41_TRUE) |
| 43 | ELSEIF(CMAKE_SYSTEM_NAME MATCHES "Darwin") |
| 44 | EXEC_PROGRAM("/usr/sbin/sysctl -n machdep.cpu.features" OUTPUT_VARIABLE |
| 45 | CPUINFO) |
| 46 | |
| 47 | STRING(REGEX REPLACE "^.*[^S](SSE2).*$" "\\1" SSE_THERE ${CPUINFO}) |
| 48 | STRING(COMPARE EQUAL "SSE2" "${SSE_THERE}" SSE2_TRUE) |
| 49 | IF (SSE2_TRUE) |
| 50 | set(SSE2_FOUND true CACHE BOOL "SSE2 available on host") |
| 51 | ELSE (SSE2_TRUE) |
| 52 | set(SSE2_FOUND false CACHE BOOL "SSE2 available on host") |
| 53 | ENDIF (SSE2_TRUE) |
| 54 | |
| 55 | STRING(REGEX REPLACE "^.*[^S](SSE3).*$" "\\1" SSE_THERE ${CPUINFO}) |
| 56 | STRING(COMPARE EQUAL "SSE3" "${SSE_THERE}" SSE3_TRUE) |
| 57 | IF (SSE3_TRUE) |
| 58 | set(SSE3_FOUND true CACHE BOOL "SSE3 available on host") |
| 59 | ELSE (SSE3_TRUE) |
| 60 | set(SSE3_FOUND false CACHE BOOL "SSE3 available on host") |
| 61 | ENDIF (SSE3_TRUE) |
| 62 | |
| 63 | STRING(REGEX REPLACE "^.*(SSSE3).*$" "\\1" SSE_THERE ${CPUINFO}) |
| 64 | STRING(COMPARE EQUAL "SSSE3" "${SSE_THERE}" SSSE3_TRUE) |
| 65 | IF (SSSE3_TRUE) |
| 66 | set(SSSE3_FOUND true CACHE BOOL "SSSE3 available on host") |
| 67 | ELSE (SSSE3_TRUE) |
| 68 | set(SSSE3_FOUND false CACHE BOOL "SSSE3 available on host") |
| 69 | ENDIF (SSSE3_TRUE) |
| 70 | |
| 71 | STRING(REGEX REPLACE "^.*(SSE4.1).*$" "\\1" SSE_THERE ${CPUINFO}) |
| 72 | STRING(COMPARE EQUAL "SSE4.1" "${SSE_THERE}" SSE41_TRUE) |
| 73 | IF (SSE41_TRUE) |
| 74 | set(SSE4_1_FOUND true CACHE BOOL "SSE4.1 available on host") |
| 75 | ELSE (SSE41_TRUE) |
| 76 | set(SSE4_1_FOUND false CACHE BOOL "SSE4.1 available on host") |
| 77 | ENDIF (SSE41_TRUE) |
| 78 | ELSEIF(CMAKE_SYSTEM_NAME MATCHES "Windows") |
| 79 | # TODO |
| 80 | set(SSE2_FOUND true CACHE BOOL "SSE2 available on host") |
| 81 | set(SSE3_FOUND false CACHE BOOL "SSE3 available on host") |
| 82 | set(SSSE3_FOUND false CACHE BOOL "SSSE3 available on host") |
| 83 | set(SSE4_1_FOUND false CACHE BOOL "SSE4.1 available on host") |
| 84 | ELSE(CMAKE_SYSTEM_NAME MATCHES "Linux") |
| 85 | set(SSE2_FOUND true CACHE BOOL "SSE2 available on host") |
| 86 | set(SSE3_FOUND false CACHE BOOL "SSE3 available on host") |
| 87 | set(SSSE3_FOUND false CACHE BOOL "SSSE3 available on host") |
| 88 | set(SSE4_1_FOUND false CACHE BOOL "SSE4.1 available on host") |
| 89 | ENDIF(CMAKE_SYSTEM_NAME MATCHES "Linux") |
| 90 | |
| 91 | if(NOT SSE2_FOUND) |
| 92 | MESSAGE(STATUS "Could not find hardware support for SSE2 on this machine.") |
| 93 | endif(NOT SSE2_FOUND) |
| 94 | if(NOT SSE3_FOUND) |
| 95 | MESSAGE(STATUS "Could not find hardware support for SSE3 on this machine.") |
| 96 | endif(NOT SSE3_FOUND) |
| 97 | if(NOT SSSE3_FOUND) |
| 98 | MESSAGE(STATUS "Could not find hardware support for SSSE3 on this machine.") |
| 99 | endif(NOT SSSE3_FOUND) |
| 100 | if(NOT SSE4_1_FOUND) |
| 101 | MESSAGE(STATUS "Could not find hardware support for SSE4.1 on this machine.") |
| 102 | endif(NOT SSE4_1_FOUND) |
| 103 | |
| 104 | mark_as_advanced(SSE2_FOUND SSE3_FOUND SSSE3_FOUND SSE4_1_FOUND) |