-/* Mips implementation of list scheduler selector */
-/* $Id$ */
+/*
+ * Copyright (C) 1995-2008 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.
+ */
-#ifdef HAVE_CONFIG_H
+/**
+ * @file
+ * @brief Mips implementation of list scheduler selector
+ * @author Matthias Braun, Mehdi
+ * @version $Id$
+ */
#include "config.h"
-#endif
-
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
#include "mips_scheduler.h"
-#include "../besched_t.h"
-#include "../be.h"
+#include "../besched.h"
+#include "be.h"
#include "../beabi.h"
+#include "../belistsched.h"
#include "iredges.h"
#include "ircons.h"
#include "gen_mips_regalloc_if.h"
list_sched_selector_t mips_sched_selector;
typedef struct {
- const arch_env_t* arch_env;
pset *div_set;
/**
* This array holds an entry for each register that specifies how much cycles
ir_node* last_nop;
} mips_sched_env_t;
-static void *mips_scheduler_init_graph(const list_sched_selector_t *vtab, const arch_env_t *arch_env, ir_graph *irg)
+/* Matze: deprecated and totally broken */
+#if 0
+
+static void *mips_scheduler_init_graph(const list_sched_selector_t *vtab, ir_graph *irg)
{
- mips_sched_env_t *sched_env = xmalloc(sizeof(sched_env[0]));
- memset(sched_env, 0, sizeof(sched_env[0]));
+ mips_sched_env_t *sched_env = XMALLOCZ(mips_sched_env_t);
- sched_env->arch_env = arch_env;
sched_env->div_set = new_pset(pset_default_ptr_cmp, 4);
return sched_env;
{
mips_sched_env_t *sched_env = (mips_sched_env_t*) graph_env;
// attach last nop to end node (so that firm doesn't discard it)
- if(sched_env->last_nop != NULL) {
+ if (sched_env->last_nop != NULL) {
ir_node* end = get_irg_end(get_irn_irg(sched_env->block));
(void) end;
// TODO
return is_mips_irn(irn) && !is_mips_zero(irn) && !is_mips_reinterpret_conv(irn) && !is_mips_fallthrough(irn);
}
-static void mips_collect_mflohis(pset* set, ir_node* node) {
+static void mips_collect_mflohis(pset* set, ir_node* node)
+{
// construct a list of nodes that need to be scheduled before
// we are allowed to schedule another div or mul instruction
const ir_edge_t *edge, *edge2;
- if(is_mips_div(node)) {
+ if (is_mips_div(node)) {
foreach_out_edge(node, edge) {
const ir_node* node2 = get_edge_src_irn(edge);
assert(is_Proj(node2));
foreach_out_edge(node2, edge2) {
const ir_node* node3 = get_edge_src_irn(edge2);
- if(is_mips_mfhi(node3) || is_mips_mflo(node3))
+ if (is_mips_mfhi(node3) || is_mips_mflo(node3))
pset_insert_ptr(set, node3);
}
}
- } else if(is_mips_mult(node)) {
+ } else if (is_mips_mult(node)) {
foreach_out_edge(node, edge) {
const ir_node* node2 = get_edge_src_irn(edge);
- if(is_mips_mfhi(node2) || is_mips_mflo(node2))
+ if (is_mips_mfhi(node2) || is_mips_mflo(node2))
pset_insert_ptr(set, node2);
}
}
static int mips_scheduler_node_allowed(mips_sched_env_t *sched_env, ir_node* node)
{
- if(pset_count(sched_env->div_set) != 0 && (is_mips_div(node) || is_mips_mult(node))) {
+ if (pset_count(sched_env->div_set) != 0 && (is_mips_div(node) || is_mips_mult(node))) {
return 0;
}
static ir_node *mips_scheduler_select(void *block_env, nodeset *ready_set, nodeset *live_set)
{
mips_sched_env_t *sched_env = (mips_sched_env_t*) block_env;
- const arch_env_t *arch_env = (const arch_env_t*) sched_env->arch_env;
ir_node *node = NULL;
ir_node *block = sched_env->block;
ir_node *condjmp = NULL;
// test all nodes in the ready set and take the first non-branch that
// is allowed
for (node = nodeset_first(ready_set); node != NULL; node = nodeset_next(ready_set)) {
- if (arch_irn_class_is(arch_env, node, branch)) {
+ if (arch_irn_class_is(node, branch)) {
if (is_irn_forking(node))
condjmp = node;
continue;
if (is_mips_div(node) || is_mips_mult(node)) {
mips_collect_mflohis(sched_env->div_set, node);
- } else if(is_mips_mflo(node) || is_mips_mfhi(node)) {
+ } else if (is_mips_mflo(node) || is_mips_mfhi(node)) {
pset_remove_ptr(sched_env->div_set, node);
}
// if we arrive here no non-branch node was found that we can emit
// return a branch if there are just branches left
- if(!have_non_branch_nodes) {
+ if (!have_non_branch_nodes) {
// schedule conditional branches before non-conditional ones
- if(condjmp != NULL) {
+ if (condjmp != NULL) {
return condjmp;
}
node = nodeset_first(ready_set);
- assert(arch_irn_class_is(arch_env, node, branch));
+ assert(arch_irn_class_is(node, branch));
nodeset_break(ready_set);
return node;
}
return node;
}
+#endif
+
+static int mips_to_appear_in_schedule(void *block_env, const ir_node *node)
+{
+ (void) block_env;
+
+ if (!is_mips_irn(node))
+ return -1;
+ if (is_mips_zero(node) || is_mips_Immediate(node))
+ return 0;
+
+ return 1;
+}
+
+list_sched_selector_t mips_selector;
+
/**
* Returns the reg_pressure scheduler with to_appear_in_schedule() overloaded
*/
-const list_sched_selector_t *mips_get_list_sched_selector(const void *self, list_sched_selector_t *selector)
+const list_sched_selector_t *mips_get_list_sched_selector(const void *self,
+ list_sched_selector_t *selector)
{
+ (void) self;
#if 0
memset(&mips_sched_selector, 0, sizeof(mips_sched_selector));
mips_sched_selector.init_graph = mips_scheduler_init_graph;
mips_sched_selector.to_appear_in_schedule = mips_scheduler_to_appear_in_schedule;
mips_sched_selector.finish_block = mips_scheduler_finish_block;
mips_sched_selector.finish_graph = mips_scheduler_finish_graph;
- return &mips_sched_selector;
+ //return &mips_sched_selector;
#endif
- return selector;
+ memcpy(&mips_selector, selector, sizeof(mips_selector));
+ mips_selector.to_appear_in_schedule = mips_to_appear_in_schedule;
+
+ return &mips_selector;
+}
+
+const ilp_sched_selector_t *mips_get_ilp_sched_selector(const void *self)
+{
+ (void) self;
+ return NULL;
}
projects / libfirm / blobdiff