irn = my_skip_proj(irn);
if (is_cfop(irn))
return arch_irn_class_branch;
- else if (is_ia32_Call(irn))
- return arch_irn_class_call;
else if (is_ia32_irn(irn))
return arch_irn_class_normal;
else
}
}
-static entity *ia32_get_frame_entity(const void *self, const ir_node *irn)
-{
- /* TODO: Implement */
- return NULL;
+static entity *ia32_get_frame_entity(const void *self, const ir_node *irn) {
+ return is_ia32_irn(irn) ? get_ia32_frame_ent(irn) : NULL;
}
static void ia32_set_stack_bias(const void *self, ir_node *irn, int bias) {
- if (is_ia32_use_frame(irn)) {
- /* TODO: correct offset */
+ char buf[64];
+ const ia32_irn_ops_t *ops = self;
+
+ if (is_ia32_use_frame(irn) && bias != 0) {
+ ia32_am_flavour_t am_flav = get_ia32_am_flavour(irn);
+
+ DBG((ops->cg->mod, LEVEL_1, "stack biased %+F with %d\n", irn, bias));
+ snprintf(buf, sizeof(buf), "%d", bias);
+ add_ia32_am_offs(irn, buf);
+ am_flav |= ia32_O;
+ set_ia32_am_flavour(irn, am_flav);
}
}
dump_ir_block_graph_sched(cg->irg, "-transformed");
edges_deactivate(cg->irg);
edges_activate(cg->irg);
- irg_walk_blkwise_graph(cg->irg, NULL, ia32_optimize_am, cg);
- dump_ir_block_graph_sched(cg->irg, "-am");
+
+ if (cg->opt.doam) {
+ irg_walk_blkwise_graph(cg->irg, NULL, ia32_optimize_am, cg);
+ dump_ir_block_graph_sched(cg->irg, "-am");
+ }
}
+/**
+ * Insert copies for all ia32 nodes where the should_be_same requirement
+ * is not fulfilled.
+ */
+static void ia32_finish_irg_walker(ir_node *irn, void *env) {
+ ia32_code_gen_t *cg = env;
+ const ia32_register_req_t **reqs;
+ const arch_register_t *out_reg, *in_reg;
+ int n_res, i;
+ ir_node *copy, *in_node, *block;
+
+ if (! is_ia32_irn(irn))
+ return;
+
+ /* nodes with destination address mode don't produce values */
+ if (get_ia32_op_type(irn) == ia32_AddrModeD)
+ return;
+
+ reqs = get_ia32_out_req_all(irn);
+ n_res = get_ia32_n_res(irn);
+ block = get_nodes_block(irn);
+
+ /* check all OUT requirements, if there is a should_be_same */
+ for (i = 0; i < n_res; i++) {
+ if (arch_register_req_is(&(reqs[i]->req), should_be_same)) {
+ /* get in and out register */
+ out_reg = get_ia32_out_reg(irn, i);
+ in_node = get_irn_n(irn, reqs[i]->same_pos);
+ in_reg = arch_get_irn_register(cg->arch_env, in_node);
+
+ /* check if in and out register are equal */
+ if (arch_register_get_index(out_reg) != arch_register_get_index(in_reg)) {
+ DBG((cg->mod, LEVEL_1, "inserting copy for %+F in_pos %d\n", irn, reqs[i]->same_pos));
+
+ /* create copy from in register */
+ copy = be_new_Copy(arch_register_get_class(in_reg), cg->irg, block, in_node);
+
+ /* destination is the out register */
+ arch_set_irn_register(cg->arch_env, copy, out_reg);
+
+ /* insert copy before the node into the schedule */
+ sched_add_before(irn, copy);
+
+ /* set copy as in */
+ set_irn_n(irn, reqs[i]->same_pos, copy);
+ }
+ }
+ }
+}
/**
- * Stack reservation and StackParam lowering.
+ * Add Copy nodes for not fulfilled should_be_equal constraints
*/
static void ia32_finish_irg(ir_graph *irg, ia32_code_gen_t *cg) {
-
+ irg_walk_blkwise_graph(irg, NULL, ia32_finish_irg_walker, cg);
}
}
+
/**
- * Creates a Store for a Spill
+ * Transforms a be node into a Load.
*/
-static ir_node *ia32_lower_spill(void *self, ir_node *spill) {
- ia32_code_gen_t *cg = self;
- ir_graph *irg = cg->irg;
- dbg_info *dbg = get_irn_dbg_info(spill);
- ir_node *block = get_nodes_block(spill);
- ir_node *ptr = get_irg_frame(irg);
- ir_node *val = be_get_Spill_context(spill);
- ir_node *mem = new_rd_NoMem(irg);
- ir_mode *mode = get_irn_mode(spill);
- entity *ent = be_get_spill_entity(spill);
- unsigned offs = get_entity_offset_bytes(ent);
- ir_node *noreg, *res;
- char buf[64];
-
- DB((cg->mod, LEVEL_1, "lower_spill: got offset %d for %+F\n", offs, ent));
+static void transform_to_Load(ia32_transform_env_t *env) {
+ ir_node *irn = env->irn;
+ entity *ent = be_get_frame_entity(irn);
+ ir_mode *mode = env->mode;
+ ir_node *noreg = ia32_new_NoReg_gp(env->cg);
+ ir_node *nomem = new_rd_NoMem(env->irg);
+ ir_node *sched_point = NULL;
+ ir_node *ptr = get_irn_n(irn, 0);
+ ir_node *mem = be_is_Reload(irn) ? get_irn_n(irn, 1) : nomem;
+ ir_node *new_op, *proj;
+ const arch_register_t *reg;
+
+ if (sched_is_scheduled(irn)) {
+ sched_point = sched_prev(irn);
+ }
if (mode_is_float(mode)) {
- noreg = ia32_new_NoReg_fp(cg);
- res = new_rd_ia32_fStore(dbg, irg, block, ptr, noreg, val, mem, mode);
+ new_op = new_rd_ia32_fLoad(env->dbg, env->irg, env->block, ptr, noreg, mem, mode_T);
}
else {
- noreg = ia32_new_NoReg_gp(cg);
- res = new_rd_ia32_Store(dbg, irg, block, ptr, noreg, val, mem, mode);
+ new_op = new_rd_ia32_Load(env->dbg, env->irg, env->block, ptr, noreg, mem, mode_T);
}
- snprintf(buf, sizeof(buf), "%d", offs);
- add_ia32_am_offs(res, buf);
+ set_ia32_am_support(new_op, ia32_am_Source);
+ set_ia32_op_type(new_op, ia32_AddrModeS);
+ set_ia32_am_flavour(new_op, ia32_B);
+ set_ia32_ls_mode(new_op, mode);
+ set_ia32_frame_ent(new_op, ent);
+ set_ia32_use_frame(new_op);
+
+ proj = new_rd_Proj(env->dbg, env->irg, env->block, new_op, mode, pn_Load_res);
+
+ if (sched_point) {
+ sched_add_after(sched_point, new_op);
+ sched_add_after(new_op, proj);
+
+ sched_remove(irn);
+ }
+
+ /* copy the register from the old node to the new Load */
+ reg = arch_get_irn_register(env->cg->arch_env, irn);
+ arch_set_irn_register(env->cg->arch_env, new_op, reg);
+
+ exchange(irn, proj);
- return res;
}
/**
- * Create a Load for a Spill
+ * Transforms a be node into a Store.
*/
-static ir_node *ia32_lower_reload(void *self, ir_node *reload) {
- ia32_code_gen_t *cg = self;
- ir_graph *irg = cg->irg;
- dbg_info *dbg = get_irn_dbg_info(reload);
- ir_node *block = get_nodes_block(reload);
- ir_node *ptr = get_irg_frame(irg);
- ir_mode *mode = get_irn_mode(reload);
- ir_node *pred = get_irn_n(reload, 0);
- char buf[64];
- char *ofs;
- ir_node *noreg, *res;
-
- /* Get the offset to Load from. It can either be a Spill or a Store. */
- if (be_is_Spill(pred)) {
- entity *ent = be_get_spill_entity(pred);
- unsigned offs = get_entity_offset_bytes(ent);
- DB((cg->mod, LEVEL_1, "lower_reload: got offset %d for %+F\n", offs, ent));
-
- snprintf(buf, sizeof(buf), "%d", offs);
- }
- else if (is_ia32_Store(pred) || is_ia32_fStore(pred)) {
- ofs = get_ia32_am_offs(pred);
- strncpy(buf, ofs, sizeof(buf));
- free(ofs);
- }
- else {
- assert(0 && "unsupported Reload predecessor");
+static void transform_to_Store(ia32_transform_env_t *env) {
+ ir_node *irn = env->irn;
+ entity *ent = be_get_frame_entity(irn);
+ ir_mode *mode = env->mode;
+ ir_node *noreg = ia32_new_NoReg_gp(env->cg);
+ ir_node *nomem = new_rd_NoMem(env->irg);
+ ir_node *ptr = get_irn_n(irn, 0);
+ ir_node *val = get_irn_n(irn, 1);
+ ir_node *new_op, *proj;
+ ir_node *sched_point = NULL;
+
+ if (sched_is_scheduled(irn)) {
+ sched_point = sched_prev(irn);
}
- /* Create the Load */
if (mode_is_float(mode)) {
- noreg = ia32_new_NoReg_fp(cg);
- res = new_rd_ia32_fLoad(dbg, irg, block, ptr, noreg, pred, mode_T);
+ new_op = new_rd_ia32_fStore(env->dbg, env->irg, env->block, ptr, noreg, val, nomem, mode_T);
}
else {
- noreg = ia32_new_NoReg_gp(cg);
- res = new_rd_ia32_Load(dbg, irg, block, ptr, noreg, pred, mode_T);
+ new_op = new_rd_ia32_Store(env->dbg, env->irg, env->block, ptr, noreg, val, nomem, mode_T);
}
- /* Set offset */
- add_ia32_am_offs(res, buf);
+ set_ia32_am_support(new_op, ia32_am_Dest);
+ set_ia32_op_type(new_op, ia32_AddrModeD);
+ set_ia32_am_flavour(new_op, ia32_B);
+ set_ia32_ls_mode(new_op, get_irn_mode(val));
+ set_ia32_frame_ent(new_op, ent);
+ set_ia32_use_frame(new_op);
+
+ proj = new_rd_Proj(env->dbg, env->irg, env->block, new_op, mode, 0);
+
+ if (sched_point) {
+ sched_add_after(sched_point, new_op);
+ sched_add_after(new_op, proj);
+
+ sched_remove(irn);
+ }
+
+ exchange(irn, proj);
- /* Return the result Proj */
- return new_rd_Proj(dbg, irg, block, res, mode, 0);
}
+/**
+ * Calls the transform functions for StackParam, Spill and Reload.
+ */
+static void ia32_after_ra_walker(ir_node *node, void *env) {
+ ia32_code_gen_t *cg = env;
+ ir_node *new_node = NULL;
+ ia32_transform_env_t tenv;
+
+ if (is_Block(node))
+ return;
+
+ tenv.block = get_nodes_block(node);
+ tenv.dbg = get_irn_dbg_info(node);
+ tenv.irg = current_ir_graph;
+ tenv.irn = node;
+ tenv.mod = cg->mod;
+ tenv.mode = get_irn_mode(node);
+ tenv.cg = cg;
+
+ if (be_is_StackParam(node) || be_is_Reload(node)) {
+ transform_to_Load(&tenv);
+ }
+ else if (be_is_Spill(node)) {
+ transform_to_Store(&tenv);
+ }
+}
+
+/**
+ * We transform StackParam, Spill and Reload here. This needs to be done before
+ * stack biasing otherwise we would miss the corrected offset for these nodes.
+ */
+static void ia32_after_ra(void *self) {
+ ia32_code_gen_t *cg = self;
+ irg_walk_blkwise_graph(cg->irg, NULL, ia32_after_ra_walker, self);
+}
+
+
/**
* Emits the code, closes the output file and frees
* the code generator interface.
}
ia32_finish_irg(irg, cg);
- //dump_ir_block_graph_sched(irg, "-finished");
+ dump_ir_block_graph_sched(irg, "-finished");
ia32_gen_routine(out, irg, cg);
cur_reg_set = NULL;
ia32_prepare_graph,
ia32_before_sched, /* before scheduling hook */
ia32_before_ra, /* before register allocation hook */
- ia32_lower_spill,
- ia32_lower_reload,
+ ia32_after_ra, /* after register allocation hook */
ia32_codegen /* emit && done */
};
cg->tv_ent = pmap_create();
cg->birg = birg;
+ /* set optimizations */
+ cg->opt.incdec = 0;
+ cg->opt.doam = 1;
+ cg->opt.placecnst = 1;
+ cg->opt.immops = 1;
+
isa->num_codegens++;
if (isa->num_codegens > 1)
between_type = new_type_class(new_id_from_str("ia32_between_type"));
old_bp_ent = new_entity(between_type, new_id_from_str("old_bp"), old_bp_type);
- ret_addr_ent = new_entity(between_type, new_id_from_str("old_bp"), ret_addr_type);
+ ret_addr_ent = new_entity(between_type, new_id_from_str("ret_addr"), ret_addr_type);
set_entity_offset_bytes(old_bp_ent, 0);
set_entity_offset_bytes(ret_addr_ent, get_type_size_bytes(old_bp_type));
int i, ignore;
ir_mode **modes;
const arch_register_t *reg;
+ be_abi_call_flags_t call_flags = { 0, 0, 1, 0, 1 };
/* get the between type and the frame pointer save entity */
between_type = get_between_type();
/* set stack parameter passing style */
- be_abi_call_set_flags(abi, BE_ABI_NONE, between_type);
+ be_abi_call_set_flags(abi, call_flags, between_type);
/* collect the mode for each type */
modes = alloca(n * sizeof(modes[0]));
}
else if (n == 1) {
tp = get_method_res_type(method_type, 0);
+ assert(is_atomic_type(tp));
mode = get_type_mode(tp);
- be_abi_call_res_reg(abi, 0, &ia32_fp_regs[mode_is_float(mode) ? REG_XMM0 : REG_EAX]);
+ be_abi_call_res_reg(abi, 0, mode_is_float(mode) ? &ia32_fp_regs[REG_XMM0] : &ia32_gp_regs[REG_EAX]);
}
}
projects / libfirm / blobdiff