bugfixes for am_offs changes

[libfirm] / ir / be / ia32 / ia32_new_nodes.c

diff --git a/ir/be/ia32/ia32_new_nodes.c b/ir/be/ia32/ia32_new_nodes.c
index ba1e3a6..1c1aaea 100644 (file)
--- a/ir/be/ia32/ia32_new_nodes.c
+++ b/ir/be/ia32/ia32_new_nodes.c
@@ -542,14 +542,13 @@ void set_ia32_am_flavour(ir_node *node, ia32_am_flavour_t am_flavour) {
  */
 char *get_ia32_am_offs(const ir_node *node) {
        ia32_attr_t *attr = get_ia32_attr(node);
-       char        *res  = NULL;
+       static char res[64];
 
        if (! attr->am_offs) {
                return NULL;
        }
 
-       res = obstack_alloc(get_irg_obstack(get_irn_irg(node)), 64);
-       snprintf(res, 64, "%+ld", attr->am_offs);
+       snprintf(res, sizeof(res), "%+ld", attr->am_offs);
 
        return res;
 }
@@ -572,12 +571,12 @@ static void extend_ia32_am_offs(ir_node *node, char *offset, char op) {
        if (! offset || strlen(offset) < 1)
                return;
 
-       sscanf(offset, "%d", &o);
+       assert(sscanf(offset, "%d", &o) == 1);
 
        if (op == '-')
                attr->am_offs -= o;
        else if (op == '+')
-               attr->am_offs -= o;
+               attr->am_offs += o;
        else
                assert(0);
 }