fixed memory leak

diff --git a/ir/be/ia32/ia32_new_nodes.c b/ir/be/ia32/ia32_new_nodes.c
index 746781d..c07081c 100644 (file)
--- a/ir/be/ia32/ia32_new_nodes.c
+++ b/ir/be/ia32/ia32_new_nodes.c
@@ -469,12 +469,20 @@ char *get_ia32_am_offs(const ir_node *node) {
                return NULL;
        }
 
+       if (! attr->plain_offs)
+               attr->plain_offs = (struct obstack *)_new_arr_d(get_irg_obstack(get_irn_irg(node)), 1, sizeof(*(attr->plain_offs)));
+       else
+               obstack_free(attr->plain_offs, NULL);
+
+       obstack_init(attr->plain_offs);
+
        size = obstack_object_size(attr->am_offs);
        if (size > 0) {
-               res    = xmalloc(size + 2);
+               res = obstack_alloc(attr->plain_offs, size + 2);
                res[0] = attr->data.offs_sign ? '-' : '+';
                memcpy(&res[1], obstack_base(attr->am_offs), size);
                res[size + 1] = '\0';
+               res = obstack_finish(attr->plain_offs);
        }
 
        return res;
@@ -502,7 +510,7 @@ static void extend_ia32_am_offs(ir_node *node, char *offset, char op) {
 
        if (! attr->am_offs) {
                /* obstack is not initialized */
-               attr->am_offs = xcalloc(1, sizeof(*(attr->am_offs)));
+               attr->am_offs = (struct obstack *)_new_arr_d(get_irg_obstack(get_irn_irg(node)), 1, sizeof(*(attr->am_offs)));
                obstack_init(attr->am_offs);
 
                attr->data.offs_sign = (op == '-') ? 1 : 0;

diff --git a/ir/be/ia32/ia32_nodes_attr.h b/ir/be/ia32/ia32_nodes_attr.h
index 4fd2771..1bafa75 100644 (file)
--- a/ir/be/ia32/ia32_nodes_attr.h
+++ b/ir/be/ia32/ia32_nodes_attr.h
@@ -99,8 +99,9 @@ typedef struct _ia32_attr_t {
                unsigned n_res:7;           /**< number of results produced by this node */
        } data;
 
-       struct obstack *am_offs;    /**< offsets for AddrMode */
-       ident          *am_sc;      /**< SymConst for AddrMode */
+       struct obstack *am_offs;     /**< offsets for AddrMode */
+       struct obstack *plain_offs;  /**< obstack for plain am_offs */
+       ident          *am_sc;       /**< SymConst for AddrMode */
 
        union {
                tarval *tv;     /**< tarval for immediate operations */