fixed CopyB emitter

[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 5c6f6f8..3345f96 100644 (file)
--- a/ir/be/ia32/ia32_new_nodes.c
+++ b/ir/be/ia32/ia32_new_nodes.c
@@ -1077,6 +1077,7 @@ void copy_ia32_Immop_attr(ir_node *dst, ir_node *src) {
  */
 void set_ia32_Const_attr(ir_node *ia32_cnst, ir_node *cnst) {
        ia32_attr_t *attr = get_ia32_attr(ia32_cnst);
+       ir_mode *mode;
 
        assert(is_ia32_Cnst(ia32_cnst) && "Need ia32_Const to set Const attr");
 
@@ -1084,6 +1085,10 @@ void set_ia32_Const_attr(ir_node *ia32_cnst, ir_node *cnst) {
                case iro_Const:
                        attr->data.tp     = ia32_Const;
                        attr->cnst_val.tv = get_Const_tarval(cnst);
+                       mode = get_tarval_mode(attr->cnst_val.tv);
+                       if (mode_is_reference(mode) &&
+                           get_mode_null(mode) == attr->cnst_val.tv)
+                               attr->cnst_val.tv = get_mode_null(mode_Is);
                        attr->cnst        = get_ident_for_tv(attr->cnst_val.tv);
                        break;
                case iro_SymConst: