+/*
+ * 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.
+ */
+
+/**
+ * @file
+ * @brief Contains some useful function for the backend.
+ * @author Sebastian Hack
+ * @version $Id$
+ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "ircons.h"
#include "iropt.h"
#include "irgopt.h"
+#include "irtools.h"
#include "irprintf.h"
+#include "iredges.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 pset *empty_set = NULL;
if(!empty_set)
- empty_set = pset_new_ptr_default();
+ empty_set = pset_new_ptr(1);
+ assert(pset_count(empty_set) == 0);
return empty_set;
}
struct dump_env {
- FILE *f;
- arch_env_t *env;
+ FILE *f;
+ arch_env_t *env;
};
static void dump_allocated_block(ir_node *block, void *data)
void dump_allocated_irg(arch_env_t *arch_env, ir_graph *irg, char *suffix)
{
char buf[1024];
- struct dump_env env;
+ struct dump_env env;
- env.env = arch_env;
+ env.env = arch_env;
ir_snprintf(buf, sizeof(buf), "%F-alloc%s.vcg", irg, suffix);
}
}
-static void localize_const_walker(ir_node *irn, void *data)
+/**
+ * Edge hook to dump the schedule edges.
+ */
+static int sched_edge_hook(FILE *F, ir_node *irn)
{
- if(!is_Block(irn)) {
- int i, n;
-
- for(i = 0, n = get_irn_arity(irn); i < n; ++i) {
- ir_node *op = get_irn_n(irn, i);
- if(get_irn_opcode(op) == iro_Const) {
- ir_node *tgt_block, *cnst;
-
- /* Special treatment for phi nodes, because phi-usage is different */
- tgt_block = get_nodes_block(irn);
- if(is_Phi(irn))
- tgt_block = get_nodes_block(get_irn_n(tgt_block, i));
-
- /*
- * We have to create the const node by ourselves, since the
- * firmcons implementation always places it in the start block.
- */
- cnst = new_ir_node(NULL, get_irn_irg(irn),
- tgt_block, op_Const, get_irn_mode(op), 0, NULL);
- cnst->attr.con.tv = get_Const_tarval(op);
- set_irn_n(irn, i, cnst);
- }
- }
+ if(sched_is_scheduled(irn) && sched_has_prev(irn)) {
+ ir_node *prev = sched_prev(irn);
+ fprintf(F, "edge:{sourcename:\"");
+ PRINT_NODEID(irn);
+ fprintf(F, "\" targetname:\"");
+ PRINT_NODEID(prev);
+ fprintf(F, "\" color:magenta}\n");
}
+ return 1;
}
-void localize_consts(ir_graph *irg)
-{
- irg_walk_graph(irg, localize_const_walker, NULL, NULL);
- dead_node_elimination(irg);
-}
+void dump_ir_block_graph_sched(ir_graph *irg, const char *suffix) {
+ DUMP_NODE_EDGE_FUNC old = get_dump_node_edge_hook();
-static int sched_edge_hook(FILE *F, ir_node *irn)
-{
- if(sched_is_scheduled(irn) && sched_has_prev(irn)) {
- ir_node *prev = sched_prev(irn);
- fprintf(F, "edge:{sourcename:\"");
- PRINT_NODEID(irn);
- fprintf(F, "\" targetname:\"");
- PRINT_NODEID(prev);
- fprintf(F, "\" color:magenta}\n");
- }
- return 1;
+ dump_consts_local(0);
+ set_dump_node_edge_hook(sched_edge_hook);
+ dump_ir_block_graph(irg, suffix);
+ set_dump_node_edge_hook(old);
}
-void dump_ir_block_graph_sched(ir_graph *irg, const char *suffix) {
- DUMP_NODE_EDGE_FUNC old = get_dump_node_edge_hook();
+void dump_ir_extblock_graph_sched(ir_graph *irg, const char *suffix) {
+ DUMP_NODE_EDGE_FUNC old = get_dump_node_edge_hook();
- dump_consts_local(0);
- set_dump_node_edge_hook(sched_edge_hook);
- dump_ir_block_graph(irg, suffix);
- set_dump_node_edge_hook(old);
+ dump_consts_local(0);
+ set_dump_node_edge_hook(sched_edge_hook);
+ dump_ir_extblock_graph(irg, suffix);
+ set_dump_node_edge_hook(old);
}
-static void clear_link(ir_node *irn, void *data)
-{
- set_irn_link(irn, NULL);
+/**
+ * Dumps a graph and numbers all dumps.
+ * @param irg The graph
+ * @param suffix A suffix to its file name.
+ * @param dumper The dump function
+ */
+void be_dump(ir_graph *irg, const char *suffix, void (*dumper)(ir_graph *, const char *)) {
+ static ir_graph *last_irg = NULL;
+ static int nr = 0;
+ char buf[128];
+
+ if (irg != last_irg) {
+ last_irg = irg;
+ nr = strcmp(suffix, "-abi") ? 0 : 1;
+ }
+
+ snprintf(buf, sizeof(buf), "-%02d%s", nr++, suffix);
+ buf[sizeof(buf) - 1] = '\0';
+ dumper(irg, buf);
}
+
+
static void collect_phis(ir_node *irn, void *data)
{
if(is_Phi(irn)) {
void be_clear_links(ir_graph *irg)
{
- irg_walk_graph(irg, clear_link, NULL, NULL);
+ irg_walk_graph(irg, firm_clear_link, NULL, NULL);
}
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) {
+ int *num = env;
+ (*num)++;
+}
+
+unsigned get_num_reachable_nodes(ir_graph *irg) {
+ int num = 0;
+ irg_walk_graph(irg, count_num_reachable_nodes, NULL, &num);
+ return num;
+}
+
+/**
+ * Sets all node inputs to BAD node.
+ */
+void be_kill_node(ir_node *irn) {
+ ir_graph *irg = get_irn_irg(irn);
+
+ assert(!is_Bad(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));
+ }
+ }
+#endif
+
+ edges_node_deleted(irn, irg);
+}
+
+/* FIXME: not used. can be deleted? */
ir_node *dom_up_search(pset *accept, ir_node *start_point_exclusive) {
ir_node *irn, *idom;
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));
if (idom)
else
return NULL; /* this was the start block and we did not find an acceptable irn */
}
+
+/**
+ * Gets the Proj with number pn from irn.
+ */
+ir_node *be_get_Proj_for_pn(const ir_node *irn, long pn) {
+ const ir_edge_t *edge;
+ ir_node *proj;
+ assert(get_irn_mode(irn) == mode_T && "need mode_T");
+
+ foreach_out_edge(irn, edge) {
+ proj = get_edge_src_irn(edge);
+
+ if (get_Proj_proj(proj) == pn)
+ return proj;
+ }
+
+ 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;
+}
projects / libfirm / blobdiff