fix warning

[r28348]

diff --git a/driver/firm_opt.c b/driver/firm_opt.c
index 32f3683..174a34a 100644 (file)
--- a/driver/firm_opt.c
+++ b/driver/firm_opt.c
@@ -405,7 +405,7 @@ static void enable_safe_defaults(void)
  */
 static void do_firm_optimizations(const char *input_filename)
 {
-       int      i;
+       size_t   i;
        unsigned aa_opt;
 
        set_opt_alias_analysis(firm_opt.alias_analysis);