Index: common/config/alpha/alpha-common.c
===================================================================
--- common/config/alpha/alpha-common.c  (revision 182617)
+++ common/config/alpha/alpha-common.c  (working copy)
@@ -33,6 +33,8 @@
 static const struct default_options alpha_option_optimization_table[] =
   {
     { OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 },
+    /* Enable redundant extension instructions removal at -O2 and higher.  */
+    { OPT_LEVELS_2_PLUS, OPT_free, NULL, 1 },
     { OPT_LEVELS_NONE, 0, NULL, 0 }
   };