diff --git a/CMakeLists.txt b/CMakeLists.txt
index 37c8171..48a38d9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -36,6 +36,7 @@ if ((${CMAKE_CXX_COMPILER_ID} STREQUAL GNU) OR (${CMAKE_CXX_COMPILER_ID} STREQUA
     endif()
     set(CMAKE_EXE_LINKER_FLAGS "-static-libgcc")
     set(CMAKE_CXX_FLAGS "-flto ${CMAKE_CXX_FLAGS} -pipe -fstack-protector-strong -fstack-clash-protection")
+    set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -ftree-vectorize -fivopts")
     include(CheckCXXCompilerFlag)
     CHECK_CXX_COMPILER_FLAG("-fcf-protection" CF_PROTECTION_SUPPORTED)
     if (CF_PROTECTION_SUPPORTED)
@@ -44,10 +45,10 @@ if ((${CMAKE_CXX_COMPILER_ID} STREQUAL GNU) OR (${CMAKE_CXX_COMPILER_ID} STREQUA
 endif()
 
 if (${CMAKE_CXX_COMPILER_ID} STREQUAL GNU)
-    set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -fira-loop-pressure -ftree-loop-distribution -floop-interchange -ftree-vectorize -fipa-pta -s")
+    set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -fira-loop-pressure -ftree-loop-distribution -floop-interchange -fipa-pta -s")
     set(CMAKE_CXX_FLAGS "-fno-use-linker-plugin -fwhole-program ${CMAKE_CXX_FLAGS}")
 elseif(${CMAKE_CXX_COMPILER_ID} STREQUAL Clang)
-    set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -ftree-vectorize")
+    set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}")
     set(CMAKE_CXX_FLAGS "-fwhole-program-vtables ${CMAKE_CXX_FLAGS}")
 endif()