Fixed opt/fehler193.c.

diff --git a/ir/be/ia32/ia32_optimize.c b/ir/be/ia32/ia32_optimize.c
index 1d02081..65699a0 100644 (file)
--- a/ir/be/ia32/ia32_optimize.c
+++ b/ir/be/ia32/ia32_optimize.c
@@ -217,10 +217,11 @@ static void peephole_ia32_Test(ir_node *node)
        if (left == right) { /* we need a test for 0 */
                ir_node         *block = get_nodes_block(node);
                int              pn    = pn_ia32_res;
+               ir_node         *op    = left;
                ir_node         *flags_proj;
                ir_mode         *flags_mode;
+               ir_mode         *op_mode;
                ir_node         *schedpoint;
-               ir_node         *op = left;
                const ir_edge_t *edge;
 
                if (get_nodes_block(left) != block)
@@ -276,6 +277,14 @@ static void peephole_ia32_Test(ir_node *node)
                                return;
                }
 
+               op_mode = get_ia32_ls_mode(op);
+               if (op_mode == NULL)
+                       op_mode = get_irn_mode(op);
+
+               /* Make sure we operate on the same bit size */
+               if (get_mode_size_bits(op_mode) != get_mode_size_bits(get_ia32_ls_mode(node)))
+                       return;
+
                if (get_irn_mode(op) != mode_T) {
                        set_irn_mode(op, mode_T);