DBG((mod, LEVEL_1, "get requirements at pos %d for %+F ... ", pos, irn));
- if (is_Call_Proj(irn) && is_used_by_Keep(irn)) {
- if (pos >= 0) {
- req = NULL;
- }
- else {
- irn_req = ia32_projnum_reg_req_map[get_Proj_proj(irn)];
- memcpy(req, &(irn_req->req), sizeof(*req));
- }
-
- return req;
- }
- else if (is_Start_Proj(irn)) {
-/* irn_req = ops->cg->reg_param_req[get_Proj_proj(irn)];
- assert(irn_req && "missing requirement for regparam");
- memcpy(req, &(irn_req->req), sizeof(*req)); */
- memcpy(req, &(ia32_default_req_ia32_gp.req), sizeof(*req));
- return req;
- //return NULL;
- }
- else if (is_Proj(irn)) {
+ if (is_Proj(irn)) {
if (pos == -1) {
node_pos = ia32_translate_proj_pos(irn);
}
else
assert(0 && "unsupported Phi-Mode");
}
- else if (is_Start(irn)) {
- DB((mod, LEVEL_1, "returning reqs none for ProjX -> Start (%+F )\n", irn));
- switch (node_pos) {
- case pn_Start_X_initial_exec:
- case pn_Start_P_value_arg_base:
- case pn_Start_P_globals:
- case pn_Start_P_frame_base:
- memcpy(req, &(ia32_default_req_none.req), sizeof(*req));
- break;
- case pn_Start_T_args:
- assert(0 && "ProjT(pn_Start_T_args) should not be asked");
- }
- }
- else if (get_irn_op(irn) == op_Return && pos > 0) {
- DB((mod, LEVEL_1, "returning reqs EAX for %+F\n", irn));
- memcpy(req, &(ia32_default_req_ia32_gp_eax.req), sizeof(*req));
- }
else {
DB((mod, LEVEL_1, "returning NULL for %+F (not ia32)\n", irn));
req = NULL;
* Stack reservation and StackParam lowering.
*/
static void ia32_finish_irg(ir_graph *irg, ia32_code_gen_t *cg) {
-#if 0
- firm_dbg_module_t *mod = cg->mod;
- ir_node *frame = get_irg_frame(irg);
- ir_node *end_block = get_irg_end_block(irg);
- ir_node **returns, **in, **new_in;
- ir_node *stack_reserve, *sched_point;
- ir_node *stack_free, *new_ret, *return_block;
- int stack_size = 0, i, n_arg;
- arch_register_t *stack_reg;
- tarval *stack_size_tv;
- dbg_info *frame_dbg;
-
- /* Determine stack register */
- if (cg->has_alloca) {
- stack_reg = &ia32_gp_regs[REG_EBP];
- }
- else {
- stack_reg = &ia32_gp_regs[REG_ESP];
- }
-
- /* If frame is used, then we need to reserve some stackspace. */
- if (get_irn_n_edges(frame) > 0) {
- /* The initial stack reservation. */
- stack_size = get_type_size_bytes(get_irg_frame_type(irg));
- frame_dbg = get_irn_dbg_info(frame);
- stack_reserve = new_rd_ia32_Sub_i(frame_dbg, irg, get_nodes_block(frame), new_NoMem(), mode_Is);
- stack_size_tv = new_tarval_from_long(stack_size, mode_Is);
- set_ia32_Immop_tarval(stack_reserve, stack_size_tv);
-
- assert(stack_size && "bOrken stack layout");
-
- /* reroute all edges from frame pointer to corrected frame pointer */
- edges_reroute(frame, stack_reserve, irg);
- set_irn_n(stack_reserve, 0, frame);
-
- /* schedule frame pointer */
- if (! sched_is_scheduled(frame)) {
- sched_add_after(get_irg_start(irg), frame);
- }
-
- /* set register */
- arch_set_irn_register(cg->arch_env, frame, stack_reg);
- arch_set_irn_register(cg->arch_env, stack_reserve, stack_reg);
-
- /* insert into schedule */
- sched_add_after(frame, stack_reserve);
-
- /* Free stack for each Return node */
- returns = get_Block_cfgpred_arr(end_block);
- for (i = 0; i < get_Block_n_cfgpreds(end_block); i++) {
- assert(get_irn_opcode(returns[i]) == iro_Return && "cfgpred of endblock is not a return");
-
- return_block = get_nodes_block(returns[i]);
-
- /* free the stack */
- stack_free = new_rd_ia32_Add_i(frame_dbg, irg, return_block, stack_reserve, mode_Is);
- set_ia32_Immop_tarval(stack_free, stack_size_tv);
- arch_set_irn_register(cg->arch_env, stack_free, stack_reg);
-
- DBG((mod, LEVEL_1, "examining %+F, %+F created, block %+F", returns[i], stack_free, return_block));
-
- /* get the old Return arguments */
- n_arg = get_Return_n_ress(returns[i]);
- in = get_Return_res_arr(returns[i]);
- new_in = alloca((n_arg + 2) * sizeof(new_in[0]));
-
- /* copy the old to the new in's */
- memcpy(new_in, in, n_arg * sizeof(in[0]));
- new_in[n_arg++] = stack_free;
- new_in[n_arg++] = get_Return_mem(returns[i]);
- /* create the new return node */
- new_ret = new_rd_ia32_Return(get_irn_dbg_info(returns[i]), irg, return_block, n_arg, new_in);
-
- /* In case the return node is the only node in the block, */
- /* it is not scheduled, so we need this work-around. */
- if (! sched_is_scheduled(returns[i])) {
- sched_point = return_block;
- }
- else {
- sched_point = sched_prev(returns[i]);
- sched_remove(returns[i]);
- }
-
- /* exchange the old return with the new one */
- exchange(returns[i], new_ret);
-
- DB((mod, LEVEL_1, " ... replaced with %+F\n", new_ret));
-
- /* remove the old one from schedule and add the new nodes properly */
- sched_add_after(sched_point, new_ret);
- sched_add_after(sched_point, stack_free);
- }
- }
-#endif
}
* Dummy functions for hooks we don't need but which must be filled.
*/
static void ia32_before_sched(void *self) {
- ia32_code_gen_t *cg = self;
-
- lower_nodes_before_sched(cg->irg, cg->arch_env);
}
static void ia32_before_ra(void *self) {
&ia32_gp_regs[REG_ESP],
&ia32_gp_regs[REG_EBP],
-1,
- 0,
- NULL
+ 0
};
/**
isa = xcalloc(1, sizeof(*isa));
memcpy(isa, &ia32_isa_template, sizeof(*isa));
- isa->reg_projnum_map = new_set(ia32_cmp_reg_projnum_assoc, 1024);
-
ia32_register_init(isa);
ia32_create_opcodes();
return &ia32_irn_handler;
}
-long ia32_handle_call_proj(const void *self, ir_node *proj, int is_keep) {
- ia32_isa_t *isa = (ia32_isa_t *)self;
- long pn = get_Proj_proj(proj);
-
- if (!is_keep) {
- /* It's not a Keep proj, which means, that it is a result proj. */
- /* Possible result proj numbers are 0 and 1 */
- /* Set the correct register (depends on the mode) and the */
- /* corresponding proj number */
- if (mode_is_float(get_irn_mode(proj))) {
- assert(pn == 0 && "only one floating point result supported");
-
- /* Get the proj number for the floating point result */
- pn = ia32_get_reg_projnum(&ia32_fp_regs[REG_XMM0], isa->reg_projnum_map);
- }
- else {
- /* In case of 64bit return value, the result is */
- /* in EDX:EAX and we have two result projs. */
- switch (pn) {
- case 0:
- pn = ia32_get_reg_projnum(&ia32_gp_regs[REG_EAX], isa->reg_projnum_map);
- break;
- case 1:
- pn = ia32_get_reg_projnum(&ia32_gp_regs[REG_EDX], isa->reg_projnum_map);
- break;
- default:
- assert(0 && "only two int results supported");
- }
- }
-
- /* Set the correct proj number */
- set_Proj_proj(proj, pn);
- }
- else {
- /* Set mode to floating point if required */
- if (!strcmp(ia32_reg_classes[CLASS_ia32_fp].name,
- ia32_projnum_reg_req_map[pn]->req.cls->name)) {
- set_irn_mode(proj, mode_F);
- }
- }
-
- return pn;
-}
-
int ia32_to_appear_in_schedule(void *block_env, const ir_node *irn) {
return is_ia32_irn(irn);
}
ia32_get_call_abi,
ia32_get_irn_handler,
ia32_get_code_generator_if,
- ia32_get_list_sched_selector,
- ia32_handle_call_proj
+ ia32_get_list_sched_selector
};
projects / libfirm / blobdiff