cmake: set instructions family independendly of -march=native includes them

Author: xavierarteaga

CMakeLists.txt

@@ -269,33 +269,23 @@ if (AUTO_DETECT_ISA)
 
     if (HAVE_AVX2)
         add_definitions(-DHAVE_AVX2)
-        if (NOT HAVE_MARCH)
-            set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mavx2")
-        endif(NOT HAVE_MARCH)
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mavx2")
     endif (HAVE_AVX2)
     if (HAVE_AVX)
         add_definitions(-DHAVE_AVX)
-        if (NOT HAVE_MARCH)
-            set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mavx")
-        endif(NOT HAVE_MARCH)
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mavx")
     endif (HAVE_AVX)
     if (HAVE_SSE)
         add_definitions(-DHAVE_SSE)
-        if (NOT HAVE_MARCH)
-            set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -msse4.2")
-        endif(NOT HAVE_MARCH)
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -msse4.1")
     endif (HAVE_SSE)
     if (HAVE_FMA)
         add_definitions(-DHAVE_FMA)
-        if (NOT HAVE_MARCH)
-            set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mfma")
-        endif(NOT HAVE_MARCH)
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mfma")
     endif (HAVE_FMA)
     if (HAVE_AVX512)
         add_definitions(-DHAVE_AVX512)
-        if (NOT HAVE_MARCH)
-            set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mavx512f -mavx512cd -mavx512bw -mavx512dq")
-        endif(NOT HAVE_MARCH)
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mavx512f -mavx512cd -mavx512bw -mavx512dq")
     endif (HAVE_AVX512)
 else (AUTO_DETECT_ISA)
     unset(HAVE_SSE CACHE)