* Copyright (C) 2005 Universitaet Karlsruhe
* Released under the GPL
*/
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "irmode_t.h"
#include "irnode_t.h"
#include "ircons_t.h"
+#include "irprintf.h"
#include "be_t.h"
#include "belive_t.h"
#define DBG_LEVEL 0
typedef enum _node_kind_t {
- node_kind_spill,
- node_kind_reload,
- node_kind_perm,
- node_kind_copy,
- node_kind_last
+ node_kind_spill,
+ node_kind_reload,
+ node_kind_perm,
+ node_kind_copy,
+ node_kind_last
} node_kind_t;
typedef struct {
- node_kind_t kind;
- const arch_register_class_t *cls;
- ir_op *op;
- int n_pos;
- int *pos;
+ node_kind_t kind;
+ const arch_register_class_t *cls;
+ ir_op *op;
+ int n_pos;
+ int *pos;
} be_op_t;
+typedef struct {
+ const be_node_factory_t *factory;
+ int n_regs;
+ const arch_register_t *reg[1];
+} be_node_attr_t;
+
+typedef struct {
+ be_node_attr_t attr;
+ ir_node *spill_ctx;
+} be_spill_attr_t;
+
static int templ_pos_Spill[] = {
- arch_pos_make_in(0)
+ 0
};
static int templ_pos_Reload[] = {
- arch_pos_make_out(0)
+ -1
};
static int templ_pos_Copy[] = {
- arch_pos_make_in(0),
- arch_pos_make_out(0)
+ 0, -1
};
+static int dump_node(ir_node *irn, FILE *f, dump_reason_t reason);
+
+static const ir_op_ops be_node_ops = {
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ dump_node,
+ NULL
+};
+
+static be_node_attr_t *init_node_attr(ir_node *irn,
+ const be_node_factory_t *fact, int n_regs)
+{
+ be_node_attr_t *attr = (be_node_attr_t *) &irn->attr;
+ int i;
+
+ attr->n_regs = n_regs;
+ attr->factory = fact;
+
+ for(i = 0; i < n_regs; ++i)
+ attr->reg[i] = NULL;
+
+ return attr;
+}
+
#define ARRSIZE(x) (sizeof(x) / sizeof(x[0]))
static int cmp_op_map(const void *a, const void *b, size_t size)
{
- const be_op_t *x = a;
- const be_op_t *y = b;
+ const be_op_t *x = a;
+ const be_op_t *y = b;
- return !(x->kind == y->kind && x->cls == y->cls);
+ return !(x->kind == y->kind && x->cls == y->cls);
}
static be_op_t *get_op(const be_node_factory_t *fact,
- const arch_register_class_t *cls, node_kind_t kind)
+ const arch_register_class_t *cls, node_kind_t kind)
{
- be_op_t templ;
+ be_op_t templ;
- templ.kind = kind;
- templ.cls = cls;
+ templ.kind = kind;
+ templ.cls = cls;
- return set_insert(fact->ops, &templ, sizeof(templ),
- HASH_PTR(cls) + 7 * kind);
+ return set_insert(fact->ops, &templ, sizeof(templ),
+ HASH_PTR(cls) + 7 * kind);
}
ir_node *new_Spill(const be_node_factory_t *factory,
- const arch_register_class_t *cls,
- ir_graph *irg, ir_node *bl, ir_node *node_to_spill)
+ const arch_register_class_t *cls,
+ ir_graph *irg, ir_node *bl, ir_node *node_to_spill, ir_node *ctx)
{
- ir_node *in[1];
- ir_op *op = get_op(factory, cls, node_kind_spill)->op;
-
- assert(op && "Spill opcode must be present for this register class");
- in[0] = node_to_spill;
-
- return new_ir_node(NULL, irg, bl, op, mode_M, 1, in);
+ be_spill_attr_t *attr;
+ ir_node *irn;
+ ir_node *in[1];
+ ir_op *op = get_op(factory, cls, node_kind_spill)->op;
+
+ assert(op && "Spill opcode must be present for this register class");
+ in[0] = node_to_spill;
+ irn = new_ir_node(NULL, irg, bl, op, mode_M, 1, in);
+ attr = (be_spill_attr_t *) init_node_attr(irn, factory, 0);
+ attr->spill_ctx = ctx;
+
+ return irn;
}
ir_node *new_Reload(const be_node_factory_t *factory,
- const arch_register_class_t *cls, ir_graph *irg,
- ir_node *bl, ir_mode *mode, ir_node *spill_node)
+ const arch_register_class_t *cls, ir_graph *irg,
+ ir_node *bl, ir_mode *mode, ir_node *spill_node)
{
- ir_node *in[1];
- ir_op *op = get_op(factory, cls, node_kind_reload)->op;
+ ir_node *irn, *in[1];
+ ir_op *op = get_op(factory, cls, node_kind_reload)->op;
+
+ assert(op && "Reload opcode must be present for this register class");
+ // assert(is_Spill(factory, spill_node) && "Operand of Reload must be a Spill");
+ in[0] = spill_node;
- assert(op && "Reload opcode must be present for this register class");
- // assert(is_Spill(factory, spill_node) && "Operand of Reload must be a Spill");
- in[0] = spill_node;
+ irn = new_ir_node(NULL, irg, bl, op, mode, 1, in);
+ init_node_attr(irn, factory, 1);
- return new_ir_node(NULL, irg, bl, op, mode, 1, in);
+ return irn;
}
ir_node *new_Perm(const be_node_factory_t *factory,
- const arch_register_class_t *cls,
- ir_graph *irg, ir_node *bl, int arity, ir_node **in)
+ const arch_register_class_t *cls,
+ ir_graph *irg, ir_node *bl, int arity, ir_node **in)
{
- ir_op *op = get_op(factory, cls, node_kind_perm)->op;
+ ir_node *irn;
+ ir_op *op = get_op(factory, cls, node_kind_perm)->op;
+
+ irn = new_ir_node(NULL, irg, bl, op, mode_T, arity, in);
+ init_node_attr(irn, factory, arity);
- return new_ir_node(NULL, irg, bl, op, mode_T, arity, in);
+ return irn;
}
ir_node *new_Copy(const be_node_factory_t *factory,
- const arch_register_class_t *cls,
- ir_graph *irg, ir_node *bl, ir_node *in)
+ const arch_register_class_t *cls,
+ ir_graph *irg, ir_node *bl, ir_node *in)
{
- ir_node *ins[1];
- ir_op *op = get_op(factory, cls, node_kind_copy)->op;
+ ir_node *irn, *ins[1];
+ ir_op *op = get_op(factory, cls, node_kind_copy)->op;
- ins[0] = in;
+ ins[0] = in;
- return new_ir_node(NULL, irg, bl, op, get_irn_mode(in), 1, ins);
+ irn = new_ir_node(NULL, irg, bl, op, get_irn_mode(in), 1, ins);
+ init_node_attr(irn, factory, 1);
+
+ return irn;
}
ir_node *be_spill(
const be_node_factory_t *factory,
const arch_env_t *arch_env,
- ir_node *irn)
+ ir_node *irn, ir_node *ctx)
{
- const arch_register_class_t *cls
- = arch_get_irn_reg_class(arch_env, irn, arch_pos_make_out(0));
- ir_node *bl = get_nodes_block(irn);
- ir_graph *irg = get_irn_irg(bl);
- ir_node *spill = new_Spill(factory, cls, irg, bl, irn);
+ const arch_register_class_t *cls = arch_get_irn_reg_class(arch_env, irn, -1);
+ ir_node *bl = get_nodes_block(irn);
+ ir_graph *irg = get_irn_irg(bl);
+ ir_node *spill = new_Spill(factory, cls, irg, bl, irn, ctx);
ir_node *insert;
/*
insert = sched_next(insert);
sched_add_before(insert, spill);
- return spill;
+ return spill;
}
-ir_node *be_reload(
- const be_node_factory_t *factory,
- const arch_env_t *arch_env,
- const arch_register_class_t *cls,
- ir_node *irn, int pos, ir_mode *mode, ir_node *spill)
+ir_node *be_reload(const be_node_factory_t *factory,
+ const arch_env_t *arch_env,
+ const arch_register_class_t *cls,
+ ir_node *irn, int pos, ir_mode *mode, ir_node *spill)
{
ir_node *reload;
- ir_node *bl = get_nodes_block(irn);
- ir_graph *irg = get_irn_irg(bl);
+ ir_node *bl = get_nodes_block(irn);
+ ir_graph *irg = get_irn_irg(bl);
assert(is_Spill(factory, spill)
|| (is_Phi(spill) && get_irn_mode(spill) == mode_M));
- reload = new_Reload(factory, cls, irg, bl, mode, spill);
+ reload = new_Reload(factory, cls, irg, bl, mode, spill);
set_irn_n(irn, pos, reload);
- sched_add_before(irn, reload);
- return reload;
+ sched_add_before(irn, reload);
+ return reload;
}
/**
*/
static int redir_proj(const ir_node **node, int def)
{
- const ir_node *n = *node;
+ const ir_node *n = *node;
- if(is_Proj(n)) {
- *node = get_Proj_pred(n);
- def = get_Proj_proj(n);
- }
+ if(is_Proj(n)) {
+ *node = get_Proj_pred(n);
+ def = -(get_Proj_proj(n) + 1);
+ }
- return def;
+ return def;
}
static const arch_register_req_t *
be_node_get_irn_reg_req(const arch_irn_ops_t *_self,
- arch_register_req_t *req, const ir_node *irn, int pos)
+ arch_register_req_t *req, const ir_node *irn, int pos)
{
- be_op_t *bo;
- int index = arch_pos_get_index(pos);
- const be_node_factory_t *factory =
- container_of(_self, const be_node_factory_t, irn_ops);
-
- if(arch_pos_is_out(pos))
- pos = arch_pos_make_out(redir_proj(&irn, index));
+ be_op_t *bo;
+ const be_node_factory_t *factory =
+ container_of(_self, const be_node_factory_t, irn_ops);
- bo = pmap_get(factory->irn_op_map, get_irn_op(irn));
+ if(get_irn_mode(irn) == mode_T && pos < 0)
+ return NULL;
- if(bo) {
- int i;
-
- req->type = arch_register_req_type_normal;
- req->cls = bo->cls;
-
- for(i = 0; i < bo->n_pos; ++i)
- if(pos == bo->pos[i])
- return req;
- }
+ /*
+ * were interested in an output operand, so
+ * let's resolve projs.
+ */
+ if(pos < 0)
+ pos = redir_proj((const ir_node **) &irn, pos);
- return NULL;
-}
+ bo = pmap_get(factory->irn_op_map, get_irn_op(irn));
-static int
-be_node_get_n_operands(const arch_irn_ops_t *_self, const ir_node *irn, int in_out)
-{
- be_op_t *bo;
- int i, res = 0;
- const be_node_factory_t *factory =
- container_of(_self, const be_node_factory_t, irn_ops);
+ if(bo) {
+ int i;
- redir_proj(&irn, 0);
- bo = pmap_get(factory->irn_op_map, get_irn_op(irn));
+ req->type = arch_register_req_type_normal;
+ req->cls = bo->cls;
- for(i = 0; i < bo->n_pos; ++i)
- res += (bo->pos[i] ^ in_out) > 0;
+ for(i = 0; i < bo->n_pos; ++i)
+ if(pos == bo->pos[i])
+ return req;
+ }
- return res;
+ return NULL;
}
void
be_node_set_irn_reg(const arch_irn_ops_t *_self, ir_node *irn,
- int idx, const arch_register_t *reg)
+ const arch_register_t *reg)
{
- const arch_register_t **regs;
+ int pos;
+ be_op_t *bo;
+ be_node_attr_t *attr;
+ const be_node_factory_t *factory =
+ container_of(_self, const be_node_factory_t, irn_ops);
+
+ if(get_irn_mode(irn) == mode_T && pos < 0)
+ return;
- idx = redir_proj((const ir_node **) &irn, idx);
- regs = (const arch_register_t **) &irn->attr;
- regs[idx] = reg;
+ pos = redir_proj((const ir_node **) &irn, -1);
+ bo = pmap_get(factory->irn_op_map, get_irn_op(irn));
+
+ if(!bo)
+ return;
+
+ attr = (be_node_attr_t *) &irn->attr;
+ attr->reg[-pos - 1] = reg;
}
const arch_register_t *
-be_node_get_irn_reg(const arch_irn_ops_t *_self, const ir_node *irn, int idx)
+be_node_get_irn_reg(const arch_irn_ops_t *_self, const ir_node *irn)
{
- const arch_register_t **regs;
+ int i, pos;
+ be_op_t *bo;
+ const be_node_factory_t *factory =
+ container_of(_self, const be_node_factory_t, irn_ops);
+
+ if(get_irn_mode(irn) == mode_T && pos < 0)
+ return NULL;
+
+ pos = redir_proj((const ir_node **) &irn, -1);
+ bo = pmap_get(factory->irn_op_map, get_irn_op(irn));
+
+ if(!bo)
+ return NULL;
- idx = redir_proj(&irn, idx);
- regs = (const arch_register_t **) &irn->attr;
- return regs[idx];
+ for(i = 0; i < bo->n_pos; ++i) {
+ if(bo->pos[i] == pos) {
+ be_node_attr_t *attr = (be_node_attr_t *) &irn->attr;
+ return attr->reg[-pos - 1];
+ }
+ }
+
+ return NULL;
}
arch_irn_class_t be_node_classify(const arch_irn_ops_t *_self, const ir_node *irn)
{
- const be_node_factory_t *factory =
- container_of(_self, const be_node_factory_t, irn_ops);
+ const be_node_factory_t *factory = container_of(_self, const be_node_factory_t, irn_ops);
- be_op_t *bo;
- int idx;
+ be_op_t *bo;
+ int idx;
- idx = redir_proj(&irn, 0);
- bo = pmap_get(factory->irn_op_map, get_irn_op(irn));
+ idx = redir_proj(&irn, 0);
+ bo = pmap_get(factory->irn_op_map, get_irn_op(irn));
switch(bo->kind) {
#define XXX(a) case node_kind_ ## a: return arch_irn_class_ ## a;
XXX(perm)
XXX(copy)
#undef XXX
+ default:
+ return 0;
}
- return 0;
+ return 0;
}
arch_irn_class_t be_node_get_flags(const arch_irn_ops_t *_self, const ir_node *irn)
static const arch_irn_ops_t *
be_node_get_irn_ops(const arch_irn_handler_t *_self, const ir_node *irn)
{
- be_op_t *bo;
- const be_node_factory_t *factory =
- container_of(_self, const be_node_factory_t, handler);
+ be_op_t *bo;
+ const be_node_factory_t *factory =
+ container_of(_self, const be_node_factory_t, handler);
- redir_proj(&irn, 0);
- bo = pmap_get(factory->irn_op_map, get_irn_op(irn));
+ redir_proj(&irn, 0);
+ bo = pmap_get(factory->irn_op_map, get_irn_op(irn));
- return bo ? &factory->irn_ops : NULL;
+ return bo ? &factory->irn_ops : NULL;
}
const arch_irn_handler_t *be_node_get_irn_handler(const be_node_factory_t *f)
{
- return &f->handler;
+ return &f->handler;
}
int is_Spill(const be_node_factory_t *f, const ir_node *irn)
{
- be_op_t *bo;
- bo = pmap_get(f->irn_op_map, get_irn_op(irn));
- return bo != NULL && bo->kind == node_kind_spill;
+ be_op_t *bo;
+ bo = pmap_get(f->irn_op_map, get_irn_op(irn));
+ return bo != NULL && bo->kind == node_kind_spill;
}
-be_node_factory_t *be_node_factory_init(be_node_factory_t *factory,
- const arch_isa_if_t *isa)
+be_node_factory_t *be_node_factory_init(be_node_factory_t *factory, const arch_isa_t *isa)
{
- char buf[256];
- int i, j, n;
-
- factory->ops = new_set(cmp_op_map, 64);
- factory->irn_op_map = pmap_create();
- obstack_init(&factory->obst);
-
- factory->handler.get_irn_ops = be_node_get_irn_ops;
-
- factory->irn_ops.get_irn_reg_req = be_node_get_irn_reg_req;
- factory->irn_ops.get_n_operands = be_node_get_n_operands;
- factory->irn_ops.set_irn_reg = be_node_set_irn_reg;
- factory->irn_ops.get_irn_reg = be_node_get_irn_reg;
- factory->irn_ops.classify = be_node_classify;
- factory->irn_ops.get_flags = be_node_get_flags;
-
- for(i = 0, n = isa->get_n_reg_class(); i < n; ++i) {
- const arch_register_class_t *cls = isa->get_reg_class(i);
- be_op_t *ent;
-
- ent = get_op(factory, cls, node_kind_spill);
- snprintf(buf, sizeof(buf), "Spill_%s", cls->name);
- ent->op = new_ir_op(get_next_ir_opcode(), buf, op_pin_state_pinned,
- 0, oparity_unary, 0, 0);
- ent->n_pos = ARRSIZE(templ_pos_Spill);
- ent->pos = templ_pos_Spill;
- pmap_insert(factory->irn_op_map, ent->op, ent);
-
- ent = get_op(factory, cls, node_kind_reload);
- snprintf(buf, sizeof(buf), "Reload_%s", cls->name);
- ent->op = new_ir_op(get_next_ir_opcode(), buf, op_pin_state_pinned, 0,
- oparity_unary, 0, sizeof(const arch_register_t *));
- ent->n_pos = ARRSIZE(templ_pos_Reload);
- ent->pos = templ_pos_Reload;
- pmap_insert(factory->irn_op_map, ent->op, ent);
-
- ent = get_op(factory, cls, node_kind_copy);
- snprintf(buf, sizeof(buf), "Copy_%s", cls->name);
- ent->op = new_ir_op(get_next_ir_opcode(), buf, op_pin_state_pinned, 0,
- oparity_unary, 0, sizeof(const arch_register_t *));
- ent->n_pos = ARRSIZE(templ_pos_Copy);
- ent->pos = templ_pos_Copy;
- pmap_insert(factory->irn_op_map, ent->op, ent);
-
- ent = get_op(factory, cls, node_kind_perm);
- snprintf(buf, sizeof(buf), "Perm_%s", cls->name);
- ent->op = new_ir_op(get_next_ir_opcode(), buf, op_pin_state_pinned, 0,
- oparity_variable, 0, sizeof(const arch_register_t) * cls->n_regs);
- ent->n_pos = 2 * cls->n_regs;
- ent->pos = obstack_alloc(&factory->obst, sizeof(ent->pos[0]) * ent->n_pos);
- for(j = 0; j < ent->n_pos; j += 2) {
- ent->pos[j] = arch_pos_make_in(j);
- ent->pos[j + 1] = arch_pos_make_out(j);
- }
- pmap_insert(factory->irn_op_map, ent->op, ent);
-
- }
-
- return factory;
+ int i, j, n;
+
+ factory->ops = new_set(cmp_op_map, 64);
+ factory->irn_op_map = pmap_create();
+ obstack_init(&factory->obst);
+
+ factory->handler.get_irn_ops = be_node_get_irn_ops;
+
+ factory->irn_ops.get_irn_reg_req = be_node_get_irn_reg_req;
+ factory->irn_ops.set_irn_reg = be_node_set_irn_reg;
+ factory->irn_ops.get_irn_reg = be_node_get_irn_reg;
+ factory->irn_ops.classify = be_node_classify;
+ factory->irn_ops.get_flags = be_node_get_flags;
+
+ for(i = 0, n = arch_isa_get_n_reg_class(isa); i < n; ++i) {
+ const arch_register_class_t *cls = arch_isa_get_reg_class(isa, i);
+ be_op_t *ent;
+
+ ent = get_op(factory, cls, node_kind_spill);
+ ent->op = new_ir_op(get_next_ir_opcode(), "Spill", op_pin_state_pinned,
+ 0, oparity_unary, 0, sizeof(be_spill_attr_t), &be_node_ops);
+ ent->n_pos = ARRSIZE(templ_pos_Spill);
+ ent->pos = templ_pos_Spill;
+ pmap_insert(factory->irn_op_map, ent->op, ent);
+
+ ent = get_op(factory, cls, node_kind_reload);
+ ent->op = new_ir_op(get_next_ir_opcode(), "Reload", op_pin_state_pinned, 0,
+ oparity_unary, 0, sizeof(be_node_attr_t), &be_node_ops);
+ ent->n_pos = ARRSIZE(templ_pos_Reload);
+ ent->pos = templ_pos_Reload;
+ pmap_insert(factory->irn_op_map, ent->op, ent);
+
+ ent = get_op(factory, cls, node_kind_copy);
+ ent->op = new_ir_op(get_next_ir_opcode(), "Copy", op_pin_state_pinned, 0,
+ oparity_unary, 0, sizeof(be_node_attr_t), &be_node_ops);
+ ent->n_pos = ARRSIZE(templ_pos_Copy);
+ ent->pos = templ_pos_Copy;
+ pmap_insert(factory->irn_op_map, ent->op, ent);
+
+ ent = get_op(factory, cls, node_kind_perm);
+ ent->op = new_ir_op(get_next_ir_opcode(), "Perm", op_pin_state_pinned, 0,
+ oparity_variable, 0,
+ sizeof(be_node_attr_t) + sizeof(arch_register_t) * cls->n_regs, &be_node_ops);
+ ent->n_pos = 2 * cls->n_regs;
+ ent->pos = obstack_alloc(&factory->obst, sizeof(ent->pos[0]) * ent->n_pos);
+ for(j = 0; j < ent->n_pos; j += 2) {
+ int k = j / 2;
+ ent->pos[j] = k;
+ ent->pos[j + 1] = -(k + 1);
+ }
+ pmap_insert(factory->irn_op_map, ent->op, ent);
+
+ }
+
+ return factory;
+}
+
+static int dump_node(ir_node *irn, FILE *f, dump_reason_t reason)
+{
+ be_node_attr_t *attr = (be_node_attr_t *) &irn->attr;
+ be_op_t *bo = pmap_get(attr->factory->irn_op_map, get_irn_op(irn));
+
+ int i;
+
+ switch(reason) {
+ case dump_node_opcode_txt:
+ fprintf(f, get_op_name(bo->op));
+ break;
+ case dump_node_mode_txt:
+ fprintf(f, get_mode_name(get_irn_mode(irn)));
+ break;
+ case dump_node_nodeattr_txt:
+ fprintf(f, "%s ", bo->cls->name);
+ break;
+ case dump_node_info_txt:
+ for(i = 0; i < attr->n_regs; ++i) {
+ const arch_register_t *reg = attr->reg[i];
+ fprintf(f, "reg #%d: %s\n", i, reg ? reg->name : "n/a");
+ }
+
+ if(bo->kind == node_kind_spill) {
+ be_spill_attr_t *a = (be_spill_attr_t *) attr;
+ ir_fprintf(f, "spill context: %+F\n", a->spill_ctx);
+ }
+ break;
+ }
+
+ return 1;
}
-ir_node *insert_Perm_after(const be_main_session_env_t *env,
- const arch_register_class_t *cls, ir_node *pos)
+ir_node *insert_Perm_after(const be_main_env_t *env,
+ const arch_register_class_t *cls,
+ dom_front_info_t *dom_front,
+ ir_node *pos)
{
- const arch_env_t *arch_env = env->main_env->arch_env;
- ir_node *bl = is_Block(pos) ? pos : get_nodes_block(pos);
- ir_graph *irg = get_irn_irg(bl);
- pset *live = put_live_end(bl, pset_new_ptr_default());
- ir_node *curr, *irn, *perm, **nodes;
- firm_dbg_module_t *dbg = firm_dbg_register("firm.be.node");
- int i, n;
+ const arch_env_t *arch_env = env->arch_env;
+ ir_node *bl = is_Block(pos) ? pos : get_nodes_block(pos);
+ ir_graph *irg = get_irn_irg(bl);
+ pset *live = pset_new_ptr_default();
+ firm_dbg_module_t *dbg = firm_dbg_register("firm.be.node");
+
+ irn_live_t *li;
+ ir_node *curr, *irn, *perm, **nodes;
+ int i, n;
- firm_dbg_set_mask(dbg, DBG_LEVEL);
- DBG((dbg, LEVEL_1, "Insert Perm after: %+F\n", pos));
+ firm_dbg_set_mask(dbg, DBG_LEVEL);
+ DBG((dbg, LEVEL_1, "Insert Perm after: %+F\n", pos));
- sched_foreach_reverse(bl, irn) {
- ir_node *x;
+
+ live_foreach(bl, li) {
+ ir_node *irn = (ir_node *) li->irn;
+ if(live_is_end(li) && arch_irn_has_reg_class(arch_env, irn, -1, cls))
+ pset_insert_ptr(live, irn);
+ }
+
+ sched_foreach_reverse(bl, irn) {
+ ir_node *x;
/*
* If we encounter the node we want to insert the Perm after,
* exit immediately, so that this node is still live
*/
- if(irn == pos)
- break;
-
- DBG((dbg, LEVEL_1, "%+F\n", irn));
- for(x = pset_first(live); x; x = pset_next(live))
- DBG((dbg, LEVEL_1, "\tlive: %+F\n", x));
-
- if(arch_irn_has_reg_class(arch_env, irn, arch_pos_make_out(0), cls))
- pset_remove_ptr(live, irn);
-
- for(i = 0, n = get_irn_arity(irn); i < n; ++i) {
- ir_node *op = get_irn_n(irn, i);
-
- if(arch_irn_has_reg_class(arch_env, op, arch_pos_make_out(0), cls))
- pset_insert_ptr(live, op);
- }
- }
-
- n = pset_count(live);
- nodes = malloc(n * sizeof(nodes[0]));
-
- DBG((dbg, LEVEL_1, "live:\n"));
- for(irn = pset_first(live), i = 0; irn; irn = pset_next(live), i++) {
- DBG((dbg, LEVEL_1, "\t%+F\n", irn));
- nodes[i] = irn;
- }
-
- perm = new_Perm(env->main_env->node_factory, cls, irg, bl, n, nodes);
- sched_add_after(pos, perm);
- free(nodes);
-
- curr = perm;
- for(i = 0; i < n; ++i) {
- ir_node *copies[1];
- ir_node *perm_op = get_irn_n(perm, i);
- const arch_register_t *reg = arch_get_irn_register(arch_env, perm_op, 0);
-
- ir_mode *mode = get_irn_mode(perm_op);
- ir_node *proj = new_r_Proj(irg, bl, perm, mode, i);
- arch_set_irn_register(arch_env, proj, 0, reg);
-
- sched_add_after(curr, proj);
- curr = proj;
-
- copies[0] = proj;
- be_introduce_copies(env->dom_front, perm_op, array_size(copies), copies);
- }
- return perm;
+ if(irn == pos)
+ break;
+
+ DBG((dbg, LEVEL_1, "%+F\n", irn));
+ for(x = pset_first(live); x; x = pset_next(live))
+ DBG((dbg, LEVEL_1, "\tlive: %+F\n", x));
+
+ if(arch_irn_has_reg_class(arch_env, irn, -1, cls))
+ pset_remove_ptr(live, irn);
+
+ for(i = 0, n = get_irn_arity(irn); i < n; ++i) {
+ ir_node *op = get_irn_n(irn, i);
+
+ if(arch_irn_has_reg_class(arch_env, op, -1, cls))
+ pset_insert_ptr(live, op);
+ }
+ }
+
+ n = pset_count(live);
+ nodes = malloc(n * sizeof(nodes[0]));
+
+ DBG((dbg, LEVEL_1, "live:\n"));
+ for(irn = pset_first(live), i = 0; irn; irn = pset_next(live), i++) {
+ DBG((dbg, LEVEL_1, "\t%+F\n", irn));
+ nodes[i] = irn;
+ }
+
+ perm = new_Perm(env->node_factory, cls, irg, bl, n, nodes);
+ sched_add_after(pos, perm);
+ free(nodes);
+
+ curr = perm;
+ for(i = 0; i < n; ++i) {
+ ir_node *copies[1];
+ ir_node *perm_op = get_irn_n(perm, i);
+ const arch_register_t *reg = arch_get_irn_register(arch_env, perm_op);
+
+ ir_mode *mode = get_irn_mode(perm_op);
+ ir_node *proj = new_r_Proj(irg, bl, perm, mode, i);
+ arch_set_irn_register(arch_env, proj, reg);
+
+ sched_add_after(curr, proj);
+ curr = proj;
+
+ copies[0] = proj;
+ be_introduce_copies(dom_front, perm_op, array_size(copies), copies);
+ }
+ return perm;
}
projects / libfirm / blobdiff