switch off firm optimization setting for certain backend phases

diff --git a/ir/be/bemain.c b/ir/be/bemain.c
index 67b0de2..fed45ea 100644 (file)
--- a/ir/be/bemain.c
+++ b/ir/be/bemain.c
@@ -309,6 +309,7 @@ static void be_main_loop(FILE *file_handle)
                ir_graph *irg = get_irp_irg(i);
                const arch_code_generator_if_t *cg_if;
                be_irg_t birg;
+               int save_optimize, save_normalize;
 
                birg.irg      = irg;
                birg.main_env = &env;
@@ -368,6 +369,12 @@ static void be_main_loop(FILE *file_handle)
 
                be_do_stat_nodes(irg, "04 Schedule");
 
+               /* we switch off optimizations here, because they might cause trouble */
+               save_optimize  = get_optimize();
+               save_normalize = get_opt_normalize();
+               set_optimize(0);
+               set_opt_normalize(0);
+
                /* add Keeps for should_be_different constrained nodes  */
                /* beware: needs schedule due to usage of be_ssa_constr */
                assure_constraints(&birg);
@@ -403,7 +410,12 @@ static void be_main_loop(FILE *file_handle)
 
                be_do_stat_nodes(irg, "07 Final");
 
-//             free_ir_graph(irg);
+               /* reset the optimizations */
+               set_optimize(save_optimize);
+               set_opt_normalize(save_normalize);
+
+               /* switched of due to statistics (statistic module needs all irgs) */
+               //              free_ir_graph(irg);
        }
        be_done_env(&env);
 }