diff --git a/config/optimize b/config/optimize
index b72ab4e07f..0abf6db291 100644
--- a/config/optimize
+++ b/config/optimize
@@ -18,11 +18,11 @@ if [ "$OPTIMIZATIONS" = size ];then
   LD_OPTIM=""
 fi
 
-# GCC_OPTIM="$GCC_OPTIM -ftree-loop-distribution"
-# GCC_OPTIM="$GCC_OPTIM -floop-interchange"
-# GCC_OPTIM="$GCC_OPTIM -floop-strip-mine"
-# GCC_OPTIM="$GCC_OPTIM -floop-block"
-# GCC_OPTIM="$GCC_OPTIM -fgraphite-identity"
+GCC_OPTIM="$GCC_OPTIM -ftree-loop-distribution"
+GCC_OPTIM="$GCC_OPTIM -floop-interchange"
+GCC_OPTIM="$GCC_OPTIM -floop-strip-mine"
+GCC_OPTIM="$GCC_OPTIM -floop-block"
+GCC_OPTIM="$GCC_OPTIM -fgraphite-identity"
 GCC_OPTIM="$GCC_OPTIM -fexcess-precision=fast"
 # GCC_OPTIM="$GCC_OPTIM -flto"