diff options
| -rw-r--r-- | cmake/modules/FindSSE.cmake | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/cmake/modules/FindSSE.cmake b/cmake/modules/FindSSE.cmake index 055466367b..ba9fb541ed 100644 --- a/cmake/modules/FindSSE.cmake +++ b/cmake/modules/FindSSE.cmake @@ -14,13 +14,10 @@ if(CMAKE_SYSTEM_NAME MATCHES "Linux") 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() + # SSE3 is also known as the Prescott New Instructions (PNI) + # it's labeled as pni in /proc/cpuinfo + string(REGEX REPLACE "^.*(pni).*$" "\\1" _SSE_THERE ${CPUINFO}) + string(COMPARE EQUAL "pni" "${_SSE_THERE}" _SSE3_TRUE) CHECK_CXX_ACCEPTS_FLAG("-msse3" _SSE3_OK) string(REGEX REPLACE "^.*(ssse3).*$" "\\1" _SSE_THERE ${CPUINFO}) |