default to O3 for autovectorization

diff --git a/Makefile b/Makefile
index ef5e12e..46b57e4 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -12,7 +12,7 @@ ifneq ($(DEBUG)$(DEBUG_SYMS), 00)
 CFLAGS += -ggdb
 endif
 ifneq ($(DEBUG), 1)
-CFLAGS += -O2
+CFLAGS += -O3
 ifneq ($(ASSERTS), 1)
 CFLAGS += -DNDEBUG
 endif