do optimize_graph after abi

[r15875]

diff --git a/ir/be/ia32/bearch_ia32.c b/ir/be/ia32/bearch_ia32.c
index b0a3785..6e4690d 100644 (file)
--- a/ir/be/ia32/bearch_ia32.c
+++ b/ir/be/ia32/bearch_ia32.c
@@ -921,8 +921,6 @@ static void ia32_before_abi(void *self) {
        ia32_code_gen_t *cg = self;
 
        ir_lower_mode_b(cg->irg, mode_Iu, 0);
-       /* do local optimisations */
-       optimize_graph_df(cg->irg);
        if(cg->dump)
                be_dump(cg->irg, "-lower_modeb", dump_ir_block_graph_sched);
 }
@@ -934,6 +932,9 @@ static void ia32_before_abi(void *self) {
 static void ia32_prepare_graph(void *self) {
        ia32_code_gen_t *cg = self;
 
+       /* do local optimisations */
+       optimize_graph_df(cg->irg);
+
        /* TODO: we often have dead code reachable through out-edges here. So for
         * now we rebuild edges (as we need correct user count for code selection)
         */
@@ -942,6 +943,9 @@ static void ia32_prepare_graph(void *self) {
        edges_activate(cg->irg);
 #endif
 
+       if(cg->dump)
+               be_dump(cg->irg, "-pre_transform", dump_ir_block_graph_sched);
+
        /* transform nodes into assembler instructions */
        ia32_transform_graph(cg);