Fix opt/ldst.c

A Load might not have a ProjM

diff --git a/ir/opt/ldstopt.c b/ir/opt/ldstopt.c
index f69fbf6..fe175a9 100644 (file)
--- a/ir/opt/ldstopt.c
+++ b/ir/opt/ldstopt.c
@@ -709,7 +709,8 @@ static void handle_load_update(ir_node *load)
                ir_node *mem = get_Load_mem(load);
 
                /* a Load whose value is neither used nor exception checked, remove it */
-               exchange(info->projs[pn_Load_M], mem);
+               if (info->projs[pn_Load_M])
+                       exchange(info->projs[pn_Load_M], mem);
                if (info->projs[pn_Load_X_regular])
                        exchange(info->projs[pn_Load_X_regular], new_r_Jmp(get_nodes_block(load)));
                kill_node(load);