jemalloc: apply recommended optimizations am: 5a22dd0d39 am: 9ea36292d6 am: 2961c11e79
am: 57e95ada08

Change-Id: I084b4fd39acca35fcee918dcabf73381f72a27d4
diff --git a/Android.bp b/Android.bp
index 5718add..38ddce0 100644
--- a/Android.bp
+++ b/Android.bp
@@ -16,6 +16,8 @@
 
 common_cflags = [
     "-D_REENTRANT",
+    "-O3",
+    "-funroll-loops",
     "-fvisibility=hidden",
     "-Wno-unused-parameter",
     "-Wno-type-limits",