- implemented i_mapper_bswap()

[libfirm] / ir / lower / lower_mode_b.c

diff --git a/ir/lower/lower_mode_b.c b/ir/lower/lower_mode_b.c
index e591f95..a6c0f75 100644 (file)
--- a/ir/lower/lower_mode_b.c
+++ b/ir/lower/lower_mode_b.c
@@ -405,6 +405,9 @@ void ir_lower_mode_b(ir_graph *irg, const lower_mode_b_config_t *nconfig)
        config        = *nconfig;
        lowered_nodes = new_pdeq();
 
+       /* ensure no optimisation touches muxes anymore */
+       set_irg_state(irg, IR_GRAPH_STATE_KEEP_MUX);
+
        ir_reserve_resources(irg, IR_RESOURCE_IRN_LINK);
 
        set_opt_allow_conv_b(0);