allow empty initializers

[r17973]

diff --git a/ir/be/begnuas.c b/ir/be/begnuas.c
index b0bf564..b848679 100644 (file)
--- a/ir/be/begnuas.c
+++ b/ir/be/begnuas.c
@@ -420,6 +420,8 @@ static int initializer_is_string_const(const ir_initializer_t *initializer)
                return 0;
 
        len = initializer->compound.n_initializers;
+       if (len < 1)
+               return 0;
        for(i = 0; i < len; ++i) {
                int               c;
                tarval           *tv;
@@ -438,9 +440,13 @@ static int initializer_is_string_const(const ir_initializer_t *initializer)
                        return 0;
 
                c = get_tarval_long(tv);
-               if((i < len - 1 && !(isgraph(c) || isspace(c)))
-                               || (i >= len - 1 && c != 0))
-                       return 0;
+               if (i < len - 1) {
+                       if (!isgraph(c) && !isspace(c))
+                               return 0;
+               } else {
+                       if (c != 0)
+                               return 0;
+               }
        }
 
        return 1;
@@ -809,6 +815,9 @@ static void dump_initializer(be_gas_decl_env_t *env, obstack_t *obst,
        type = get_entity_type(entity);
        size = get_initializer_size(initializer, type);
 
+       if (size == 0)
+               return;
+
        /*
         * In the worst case, every initializer allocates one byte.
         * Moreover, initializer might be big, do not allocate on stack.