* @date 14.12.2005
* @version $Id$
*/
-#ifdef HAVE_CONFIG_H
#include "config.h"
-#endif
#include <stdlib.h>
/** Lowering walker environment. */
typedef struct _lower_env_t {
be_irg_t *birg;
- const arch_env_t *arch_env;
unsigned do_copy : 1;
DEBUG_ONLY(firm_dbg_module_t *dbg_module;)
} lower_env_t;
static void lower_perm_node(ir_node *irn, void *walk_env) {
ir_graph *irg = get_irn_irg(irn);
const arch_register_class_t *reg_class;
- const arch_env_t *arch_env;
lower_env_t *env = walk_env;
int real_size = 0;
int keep_perm = 0;
ir_node *cpyxchg = NULL;
DEBUG_ONLY(firm_dbg_module_t *mod;)
- arch_env = env->arch_env;
do_copy = env->do_copy;
DEBUG_ONLY(mod = env->dbg_module;)
block = get_nodes_block(irn);
n = get_irn_arity(irn);
assert(n == get_irn_n_edges(irn) && "perm's in and out numbers different");
- reg_class = arch_get_irn_register(arch_env, get_irn_n(irn, 0))->reg_class;
+ reg_class = arch_get_irn_register(get_irn_n(irn, 0))->reg_class;
pairs = alloca(n * sizeof(pairs[0]));
/* build the list of register pairs (in, out) */
pn = get_Proj_proj(pairs[i].out_node);
pairs[i].in_node = get_irn_n(irn, pn);
- pairs[i].in_reg = arch_get_irn_register(arch_env, pairs[i].in_node);
- pairs[i].out_reg = arch_get_irn_register(arch_env, pairs[i].out_node);
+ pairs[i].in_reg = arch_get_irn_register(pairs[i].in_node);
+ pairs[i].out_reg = arch_get_irn_register(pairs[i].out_node);
pairs[i].checked = 0;
i++;
set_Proj_pred(res1, cpyxchg);
set_Proj_proj(res1, 1);
- arch_set_irn_register(arch_env, res2, cycle->elems[i + 1]);
- arch_set_irn_register(arch_env, res1, cycle->elems[i]);
+ arch_set_irn_register(res2, cycle->elems[i + 1]);
+ arch_set_irn_register(res1, cycle->elems[i]);
/* insert the copy/exchange node in schedule after the magic schedule node (see above) */
sched_add_after(sched_point, cpyxchg);
irn, arg1, cycle->elems[i]->name, res2, cycle->elems[i + 1]->name));
cpyxchg = be_new_Copy(reg_class, irg, block, arg1);
- arch_set_irn_register(arch_env, cpyxchg, cycle->elems[i + 1]);
+ arch_set_irn_register(cpyxchg, cycle->elems[i + 1]);
n_ops++;
/* exchange copy node and proj */
return irn;
}
-static ir_node *find_copy(constraint_env_t *env, ir_node *irn, ir_node *op) {
- const arch_env_t *arch_env = be_get_birg_arch_env(env->birg);
- ir_node *block = get_nodes_block(irn);
- ir_node *cur_node;
+static ir_node *find_copy(ir_node *irn, ir_node *op)
+{
+ ir_node *block = get_nodes_block(irn);
+ ir_node *cur_node;
for (cur_node = sched_prev(irn);
! is_Block(cur_node) && be_is_Copy(cur_node) && get_nodes_block(cur_node) == block;
cur_node = sched_prev(cur_node))
{
- if (be_get_Copy_op(cur_node) == op && arch_irn_is(arch_env, cur_node, dont_spill))
+ if (be_get_Copy_op(cur_node) == op && arch_irn_is(cur_node, dont_spill))
return cur_node;
}
be_irg_t *birg = env->birg;
ir_graph *irg = be_get_birg_irg(birg);
pset *op_set = env->op_set;
- const arch_env_t *arch_env = be_get_birg_arch_env(birg);
ir_node *block = get_nodes_block(irn);
- const arch_register_class_t *cls = arch_get_irn_reg_class(arch_env, other_different, -1);
+ const arch_register_class_t *cls = arch_get_irn_reg_class(other_different, -1);
ir_node *in[2], *keep, *cpy;
op_copy_assoc_t key, *entry;
DEBUG_ONLY(firm_dbg_module_t *mod = env->dbg;)
- if (arch_irn_is(arch_env, other_different, ignore) || ! mode_is_datab(get_irn_mode(other_different))) {
+ if (arch_irn_is(other_different, ignore) ||
+ !mode_is_datab(get_irn_mode(other_different))) {
DBG((mod, LEVEL_1, "ignore constraint for %+F because other_irn is ignore or not a datab node\n", irn));
return;
}
/* The copy is optimized later if not needed */
/* check if already exists such a copy in the schedule immediately before */
- cpy = find_copy(env, belower_skip_proj(irn), other_different);
+ cpy = find_copy(belower_skip_proj(irn), other_different);
if (! cpy) {
cpy = be_new_Copy(cls, irg, block, other_different);
be_node_set_flags(cpy, BE_OUT_POS(0), arch_irn_flags_dont_spill);
* then to assure the constraint.
*/
static void assure_different_constraints(ir_node *irn, constraint_env_t *env) {
- const arch_register_req_t *req;
- const arch_env_t *arch_env = be_get_birg_arch_env(env->birg);
ir_node *skipped_irn = belower_skip_proj(irn);
-
- req = arch_get_register_req(arch_env, irn, -1);
+ const arch_register_req_t *req = arch_get_register_req(irn, -1);
if (arch_register_req_is(req, must_be_different)) {
const unsigned other = req->other_different;
*/
void assure_constraints(be_irg_t *birg) {
ir_graph *irg = be_get_birg_irg(birg);
- const arch_env_t *arch_env = be_get_birg_arch_env(birg);
constraint_env_t cenv;
op_copy_assoc_t *entry;
ir_node **nodes;
ir_node *keep;
int n = get_irn_arity(cp);
- keep = be_new_Keep(arch_get_irn_reg_class(arch_env, cp, -1),
+ keep = be_new_Keep(arch_get_irn_reg_class(cp, -1),
irg, get_nodes_block(cp), n, get_irn_in(cp) + 1);
sched_add_before(cp, keep);
*/
static int push_through_perm(ir_node *perm, void *data)
{
- lower_env_t *env = data;
- const arch_env_t *aenv = env->arch_env;
+ lower_env_t *env = data;
ir_graph *irg = get_irn_irg(perm);
ir_node *bl = get_nodes_block(perm);
edge = get_irn_out_edge_first_kind(perm, EDGE_KIND_NORMAL);
one_proj = get_edge_src_irn(edge);
assert(is_Proj(one_proj));
- cls = arch_get_irn_reg_class(aenv, one_proj, -1);
+ cls = arch_get_irn_reg_class(one_proj, -1);
/* Find the point in the schedule after which the
* potentially movable nodes must be defined.
sched_foreach_reverse_from (sched_prev(perm), irn) {
for (i = get_irn_arity(irn) - 1; i >= 0; --i) {
ir_node *op = get_irn_n(irn, i);
- if (arch_irn_consider_in_reg_alloc(aenv, cls, op) &&
+ if (arch_irn_consider_in_reg_alloc(cls, op) &&
!values_interfere(env->birg, op, one_proj)) {
frontier = irn;
goto found_front;
break;
if(!sched_comes_after(frontier, node))
break;
- if(arch_irn_is(aenv, node, modify_flags))
+ if (arch_irn_is(node, modify_flags))
break;
if(is_Proj(node)) {
- req = arch_get_register_req(aenv, get_Proj_pred(node),
+ req = arch_get_register_req(get_Proj_pred(node),
-1 - get_Proj_proj(node));
} else {
- req = arch_get_register_req(aenv, node, -1);
+ req = arch_get_register_req(node, -1);
}
if(req->type != arch_register_req_type_normal)
break;
for(i = get_irn_arity(node) - 1; i >= 0; --i) {
ir_node *opop = get_irn_n(node, i);
- if (arch_irn_consider_in_reg_alloc(aenv, cls, opop)) {
+ if (arch_irn_consider_in_reg_alloc(cls, opop)) {
break;
}
}
sched_add_after(perm, node);
/* give it the proj's register */
- arch_set_irn_register(aenv, node, arch_get_irn_register(aenv, proj));
+ arch_set_irn_register(node, arch_get_irn_register(proj));
/* reroute all users of the proj to the moved node. */
edges_reroute(proj, node, irg);
lower_env_t env;
ir_graph *irg = be_get_birg_irg(birg);
- env.birg = birg;
- env.arch_env = be_get_birg_arch_env(birg);
- env.do_copy = do_copy;
+ env.birg = birg;
+ env.do_copy = do_copy;
FIRM_DBG_REGISTER(env.dbg_module, "firm.be.lower");
/* we will need interference */
projects / libfirm / blobdiff