diff --git a/CMakeLists.txt b/CMakeLists.txt
index 15a2b2dc..a6c97c77 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -265,6 +265,15 @@ endif ( enable-floats )
 unset ( WITH_PROFILING CACHE )
 if ( enable-profiling )
     set ( WITH_PROFILING 1 )
+    if ( CMAKE_C_COMPILER_ID STREQUAL "Clang" )
+      set ( OPT_FLAGS "-Rpass=loop-vectorize -Rpass-analysis=loop-vectorize" )
+    elseif ( CMAKE_C_COMPILER_ID STREQUAL "Intel" )
+      set ( OPT_FLAGS "-qopt-report=3" )
+    endif ( )
+    
+    set ( CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} ${OPT_FLAGS}" )
+    set ( CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} ${OPT_FLAGS}" )
+    set ( CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELWITHDEBINFO} ${OPT_FLAGS}" )
 endif ( enable-profiling )
 
 unset ( ENABLE_TRAPONFPE CACHE )