fix handling of default pns in the backend (they don't need table entries)

[libfirm] / ir / be / betranshlp.c

diff --git a/ir/be/betranshlp.c b/ir/be/betranshlp.c
index fabd052..b7cb271 100644 (file)
--- a/ir/be/betranshlp.c
+++ b/ir/be/betranshlp.c
@@ -334,6 +334,7 @@ static ir_node *gen_Block(ir_node *node) {
        ir_graph *irg             = current_ir_graph;
        dbg_info *dbgi            = get_irn_dbg_info(node);
        ir_node  *old_start_block = get_irn_n(env.old_anchor, anchor_start_block);
+       ir_node  *macroblock      = get_Block_MacroBlock(node);
        ir_node  *block;
 
        /*
@@ -349,10 +350,17 @@ static ir_node *gen_Block(ir_node *node) {
        block = new_ir_node(dbgi, irg, NULL, get_irn_op(node), get_irn_mode(node),
                            get_irn_arity(node), get_irn_in(node) + 1);
        copy_node_attr(node, block);
-
 #ifdef DEBUG_libfirm
        block->node_nr = node->node_nr;
 #endif
+       if (node == macroblock) {
+               /* this node is a macroblock header */
+               set_irn_n(block, -1, block);
+       } else {
+               macroblock = be_transform_node(macroblock);
+               set_irn_n(block, -1, macroblock);
+       }
+
        be_set_transformed_node(node, block);
 
        /* put the preds in the worklist */
@@ -397,16 +405,6 @@ void be_transform_graph(be_irg_t *birg, arch_pretrans_nodes *func, void *cg)
 
        current_ir_graph = irg;
 
-       /* most analysis info is wrong after transformation */
-       free_callee_info(irg);
-       free_irg_outs(irg);
-       free_trouts();
-       free_loop_information(irg);
-       set_irg_doms_inconsistent(irg);
-
-       be_liveness_invalidate(be_get_birg_liveness(birg));
-       be_invalidate_dom_front(birg);
-
        /* create a new obstack */
        old_obst = irg->obst;
        new_obst = xmalloc(sizeof(*new_obst));
@@ -435,6 +433,18 @@ void be_transform_graph(be_irg_t *birg, arch_pretrans_nodes *func, void *cg)
        /* restore state */
        current_ir_graph = old_current_ir_graph;
 
+       /* most analysis info is wrong after transformation */
+       free_callee_info(irg);
+       free_irg_outs(irg);
+       free_trouts();
+       free_loop_information(irg);
+       set_irg_doms_inconsistent(irg);
+
+       be_liveness_invalidate(be_get_birg_liveness(birg));
+       /* Hack for now, something is buggy with invalidate liveness... */
+       birg->lv = NULL;
+       be_invalidate_dom_front(birg);
+
        /* recalculate edges */
        edges_deactivate(irg);
        edges_activate(irg);