+/*
+ * Copyright (C) 1995-2007 University of Karlsruhe. All right reserved.
+ *
+ * This file is part of libFirm.
+ *
+ * This file may be distributed and/or modified under the terms of the
+ * GNU General Public License version 2 as published by the Free Software
+ * Foundation and appearing in the file LICENSE.GPL included in the
+ * packaging of this file.
+ *
+ * Licensees holding valid libFirm Professional Edition licenses may use
+ * this file in accordance with the libFirm Commercial License.
+ * Agreement provided with the Software.
+ *
+ * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+ * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.
+ */
+
/**
- * Contains some useful function for the backend.
- * @author Sebastian Hack
- * @cvsid $Id$
+ * @file
+ * @brief Contains some useful function for the backend.
+ * @author Sebastian Hack
+ * @version $Id$
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#include "beutil.h"
#include "besched_t.h"
-#include "bearch.h"
+#include "bearch_t.h"
/* Get an always empty set. */
pset *be_empty_set(void)
*/
static int sched_edge_hook(FILE *F, ir_node *irn)
{
- if(sched_is_scheduled(irn) && sched_has_prev(irn)) {
+ if (is_Proj(irn))
+ return 1;
+ if (sched_is_scheduled(irn) && sched_has_prev(irn)) {
ir_node *prev = sched_prev(irn);
fprintf(F, "edge:{sourcename:\"");
PRINT_NODEID(irn);
static void collect_phis(ir_node *irn, void *data)
{
- if(is_Phi(irn)) {
- ir_node *bl = get_nodes_block(irn);
- set_irn_link(irn, get_irn_link(bl));
- set_irn_link(bl, irn);
- }
+ (void) data;
+ if(is_Phi(irn)) {
+ ir_node *bl = get_nodes_block(irn);
+ set_irn_link(irn, get_irn_link(bl));
+ set_irn_link(bl, irn);
+ }
}
void be_clear_links(ir_graph *irg)
{
+ set_using_irn_link(irg);
irg_walk_graph(irg, firm_clear_link, NULL, NULL);
+ clear_using_irn_link(irg);
}
void be_collect_phis(ir_graph *irg)
irg_walk_graph(irg, collect_phis, NULL, NULL);
}
-static void count_num_reachable_nodes(ir_node *irn, void *env) {
+static void count_num_reachable_nodes(ir_node *irn, void *env)
+{
int *num = env;
(*num)++;
+ (void) irn;
}
unsigned get_num_reachable_nodes(ir_graph *irg) {
* Sets all node inputs to BAD node.
*/
void be_kill_node(ir_node *irn) {
- int i, first;
- ir_graph *irg;
+ ir_graph *irg = get_irn_irg(irn);
- if (is_Bad(irn))
- return;
+ assert(!is_Bad(irn));
- irg = get_irn_irg(irn);
+#ifdef DEBUG_libfirm
+ {
+ int i, first;
first = 0 - ! is_Block(irn);
for (i = get_irn_arity(irn) - 1; i >= first; --i) {
set_irn_n(irn, i, get_irg_bad(irg));
}
-}
-
-/* FIXME: not used. can be deleted? */
-ir_node *dom_up_search(pset *accept, ir_node *start_point_exclusive) {
- ir_node *irn, *idom;
-
- /* search the current block */
- for (irn=sched_prev(start_point_exclusive); irn; irn=sched_prev(irn))
- if (pset_find_ptr(accept, irn))
- return irn;
-
- /* FIXME: This is obviously buggy: after the first recursive call idom is a block
- and get_nodes_block will fail.
- Moreover, why not a simple iteration instead of recursion */
- idom = get_Block_idom(get_nodes_block(start_point_exclusive));
+ }
+#endif
- if (idom)
- return dom_up_search(accept, idom); /* continue search in idom-block */
- else
- return NULL; /* this was the start block and we did not find an acceptable irn */
+ edges_node_deleted(irn, irg);
}
/**
return NULL;
}
+
+FILE *be_ffopen(const char *base, const char *ext, const char *mode) {
+ FILE *out;
+ char buf[1024];
+
+ snprintf(buf, sizeof(buf), "%s.%s", base, ext);
+ buf[sizeof(buf) - 1] = '\0';
+ if (! (out = fopen(buf, mode))) {
+ fprintf(stderr, "Cannot open file %s in mode %s\n", buf, mode);
+ return NULL;
+ }
+ return out;
+}