/*
- * Copyright (C) 1995-2007 University of Karlsruhe. All right reserved.
+ * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
*
* This file is part of libFirm.
*
set_irn_link(old_node, new_node);
}
+int be_is_transformed(const ir_node *node) {
+ return irn_visited(node);
+}
+
static INLINE ir_node *be_get_transformed_node(ir_node *old_node) {
- assert(irn_visited(old_node));
- return (ir_node*) get_irn_link(old_node);
+ if (irn_visited(old_node)) {
+ ir_node *new_node = get_irn_link(old_node);
+ assert(new_node != NULL);
+ return new_node;
+ }
+ return NULL;
}
void be_duplicate_deps(ir_node *old_node, ir_node *new_node) {
* Calls transformation function for given node and marks it visited.
*/
ir_node *be_transform_node(ir_node *node) {
- ir_node *new_node;
ir_op *op;
+ ir_node *new_node = be_get_transformed_node(node);
- if (irn_visited(node)) {
- new_node = be_get_transformed_node(node);
- assert(new_node != NULL);
+ if (new_node != NULL)
return new_node;
- }
mark_irn_visited(node);
DEBUG_ONLY(be_set_transformed_node(node, NULL));
set_irg_anchor(current_ir_graph, anchor, transformed);
}
+static void kill_unused_anchor(int anchor)
+{
+ ir_node *old_anchor_node = get_irn_n(env.old_anchor, anchor);
+ ir_node *old_bad = get_irn_n(env.old_anchor, anchor_bad);
+ if(old_anchor_node != NULL && get_irn_n_edges(old_anchor_node) <= 1) {
+ set_irn_n(env.old_anchor, anchor, old_bad);
+ }
+}
+
/**
* Transforms all nodes. Deletes the old obstack and creates a new one.
*/
pre_transform_anchor(anchor_start_block);
pre_transform_anchor(anchor_start);
pre_transform_anchor(anchor_frame);
+ kill_unused_anchor(anchor_tls);
if (pre_transform)
(*pre_transform)(cg);
fix_loops(anchor);
set_irn_n(new_anchor, i, anchor);
}
- set_irn_n(new_anchor, -1, get_irg_anchor(irg, anchor_end_block));
+ set_nodes_block(new_anchor, get_irg_anchor(irg, anchor_end_block));
del_waitq(env.worklist);
free_End(old_end);
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;
/*
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_Block_MacroBlock(block, block);
+ } else {
+ macroblock = be_transform_node(macroblock);
+ set_Block_MacroBlock(block, macroblock);
+ }
+
be_set_transformed_node(node, block);
/* put the preds in the worklist */
{
ir_graph *irg = birg->irg;
ir_graph *old_current_ir_graph = current_ir_graph;
- int old_interprocedural_view = get_interprocedural_view();
struct obstack *old_obst = NULL;
struct obstack *new_obst = NULL;
current_ir_graph = irg;
- set_interprocedural_view(0);
-
- /* 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;
/* do the main transformation */
transform_nodes(irg, func, cg);
- /* we don't want the globals anchor anymore */
- set_irg_globals(irg, new_r_Bad(irg));
-
/* free the old obstack */
obstack_free(old_obst, 0);
xfree(old_obst);
/* restore state */
current_ir_graph = old_current_ir_graph;
- set_interprocedural_view(old_interprocedural_view);
+
+ /* 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);