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From-SVN: r23083

diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index c1b22daf746816c24cdd44e659fe05d4d6954e69..2a14670ae0a34f0aba1cdd90ab98439e41bbefb4 100644 (file)
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -663,7 +663,7 @@ expand_builtin_dwarf_reg_size (reg_tree, target)
          t = fold (build (COND_EXPR, integer_type_node, t2,
                           build_int_2 (ranges[n_ranges].size, 0), t));
        }
-      while (--n_ranges > 0);
+      while (--n_ranges >= 0);
     }
   return expand_expr (t, target, Pmode, 0);
 }