opts: Support -Oz in -Ox option hints.

gcc/ChangeLog:

	* opts.c (default_options_optimization): Support -Oz in -Ox option hints.

diff --git a/gcc/opts.c b/gcc/opts.c
index f45ecc5672603236dc3db497f31fdfc06e22d9cc..cdd6463e49b9fa6d7d64b4a8a0742c4802067f43 100644 (file)
--- a/gcc/opts.c
+++ b/gcc/opts.c
@@ -723,7 +723,7 @@ default_options_optimization (struct gcc_options *opts,
              const int optimize_val = integral_argument (opt->arg);
              if (optimize_val == -1)
                error_at (loc, "argument to %<-O%> should be a non-negative "
-                              "integer, %<g%>, %<s%> or %<fast%>");
+                              "integer, %<g%>, %<s%>, %<z%> or %<fast%>");
              else
                {
                  opts->x_optimize = optimize_val;