#include "bearch_ia32_t.h"
#include "ia32_finish.h"
#include "ia32_new_nodes.h"
-#include "ia32_map_regs.h"
#include "ia32_common_transform.h"
#include "ia32_transform.h"
#include "ia32_dbg_stat.h"
DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
/**
- * Transforms a Sub or xSub into Neg--Add iff OUT_REG == SRC2_REG.
+ * Transforms a Sub or xSub into Neg--Add iff OUT_REG != SRC1_REG && OUT_REG == SRC2_REG.
* THIS FUNCTIONS MUST BE CALLED AFTER REGISTER ALLOCATION.
*/
-static void ia32_transform_sub_to_neg_add(ir_node *irn, ia32_code_gen_t *cg)
+static void ia32_transform_sub_to_neg_add(ir_node *irn)
{
ir_graph *irg;
ir_node *in1, *in2, *noreg, *nomem, *res;
if (get_ia32_op_type(irn) != ia32_Normal)
return;
- noreg = ia32_new_NoReg_gp(cg);
- noreg_fp = ia32_new_NoReg_xmm(cg);
- nomem = new_NoMem();
+ irg = get_irn_irg(irn);
+ noreg = ia32_new_NoReg_gp(irg);
+ noreg_fp = ia32_new_NoReg_xmm(irg);
+ nomem = new_r_NoMem(irg);
in1 = get_irn_n(irn, n_ia32_binary_left);
in2 = get_irn_n(irn, n_ia32_binary_right);
in1_reg = arch_get_irn_register(in1);
in2_reg = arch_get_irn_register(in2);
out_reg = arch_irn_get_register(irn, 0);
- irg = cg->irg;
- block = get_nodes_block(irn);
+ if (out_reg == in1_reg)
+ return;
/* in case of sub and OUT == SRC2 we can transform the sequence into neg src2 -- add */
if (out_reg != in2_reg)
return;
- dbg = get_irn_dbg_info(irn);
+ block = get_nodes_block(irn);
+ dbg = get_irn_dbg_info(irn);
/* generate the neg src2 */
if (is_ia32_xSub(irn)) {
set_ia32_ls_mode(res, get_ia32_ls_mode(irn));
/* exchange the add and the sub */
- edges_reroute(irn, res, irg);
+ edges_reroute(irn, res);
/* add to schedule */
sched_add_before(irn, res);
set_ia32_commutative(res);
/* exchange the add and the sub */
- edges_reroute(irn, res, irg);
+ edges_reroute(irn, res);
/* add to schedule */
sched_add_before(irn, res);
} else {
- ir_node *stc, *cmc, *not, *adc;
+ ir_node *stc, *cmc, *nnot, *adc;
ir_node *adc_flags;
/*
*
* a + -b = a + (~b + 1) would set the carry flag IF a == b ...
*/
- not = new_bd_ia32_Not(dbg, block, in2);
- arch_set_irn_register(not, in2_reg);
- sched_add_before(irn, not);
+ nnot = new_bd_ia32_Not(dbg, block, in2);
+ arch_set_irn_register(nnot, in2_reg);
+ sched_add_before(irn, nnot);
stc = new_bd_ia32_Stc(dbg, block);
- arch_set_irn_register(stc, &ia32_flags_regs[REG_EFLAGS]);
+ arch_set_irn_register(stc, &ia32_registers[REG_EFLAGS]);
sched_add_before(irn, stc);
- adc = new_bd_ia32_Adc(dbg, block, noreg, noreg, nomem, not, in1, stc);
+ adc = new_bd_ia32_Adc(dbg, block, noreg, noreg, nomem, nnot, in1, stc);
arch_set_irn_register(adc, out_reg);
sched_add_before(irn, adc);
set_irn_mode(adc, mode_T);
- adc_flags = new_r_Proj(block, adc, mode_Iu, pn_ia32_Adc_flags);
- arch_set_irn_register(adc_flags, &ia32_flags_regs[REG_EFLAGS]);
+ adc_flags = new_r_Proj(adc, mode_Iu, pn_ia32_Adc_flags);
+ arch_set_irn_register(adc_flags, &ia32_registers[REG_EFLAGS]);
cmc = new_bd_ia32_Cmc(dbg, block, adc_flags);
- arch_set_irn_register(cmc, &ia32_flags_regs[REG_EFLAGS]);
+ arch_set_irn_register(cmc, &ia32_registers[REG_EFLAGS]);
sched_add_before(irn, cmc);
exchange(flags_proj, cmc);
case iro_ia32_Lea:
case iro_ia32_Conv_I2I:
case iro_ia32_Conv_I2I8Bit:
- case iro_ia32_CMov:
+ case iro_ia32_CMovcc:
return 0;
default:
for (i = 0; i < 32; ++i) {
if (other & (1U << i)) return i;
}
- assert(! "same position not found");
- return 32;
+ panic("same position not found");
}
/**
*/
static void assure_should_be_same_requirements(ir_node *node)
{
- const arch_register_req_t **reqs;
const arch_register_t *out_reg, *in_reg;
int n_res, i;
ir_node *in_node, *block;
- reqs = get_ia32_out_req_all(node);
n_res = arch_irn_get_n_outs(node);
block = get_nodes_block(node);
ir_node *perm_proj0;
ir_node *perm_proj1;
ir_node *uses_out_reg;
- const arch_register_req_t *req = reqs[i];
+ const arch_register_req_t *req = arch_get_out_register_req(node, i);
const arch_register_class_t *cls;
int uses_out_reg_pos;
same_pos = get_first_same(req);
/* get in and out register */
- out_reg = arch_irn_get_register(node, i);
- in_node = get_irn_n(node, same_pos);
- in_reg = arch_get_irn_register(in_node);
+ out_reg = arch_irn_get_register(node, i);
+ in_node = get_irn_n(node, same_pos);
+ in_reg = arch_get_irn_register(in_node);
/* requirement already fulfilled? */
if (in_reg == out_reg)
continue;
- /* unknowns can be changed to any register we want on emitting */
- if (is_unknown_reg(in_reg))
- continue;
cls = arch_register_get_class(in_reg);
assert(cls == arch_register_get_class(out_reg));
in[1] = uses_out_reg;
perm = be_new_Perm(cls, block, 2, in);
- perm_proj0 = new_r_Proj(block, perm, get_irn_mode(in[0]), 0);
- perm_proj1 = new_r_Proj(block, perm, get_irn_mode(in[1]), 1);
+ perm_proj0 = new_r_Proj(perm, get_irn_mode(in[0]), 0);
+ perm_proj1 = new_r_Proj(perm, get_irn_mode(in[1]), 1);
arch_set_irn_register(perm_proj0, out_reg);
arch_set_irn_register(perm_proj1, in_reg);
*/
static void fix_am_source(ir_node *irn)
{
- const arch_register_req_t **reqs;
int n_res, i;
/* check only ia32 nodes with source address mode */
if (get_ia32_am_support(irn) != ia32_am_binary)
return;
- reqs = get_ia32_out_req_all(irn);
n_res = arch_irn_get_n_outs(irn);
for (i = 0; i < n_res; i++) {
- const arch_register_t *out_reg;
- int same_pos;
- ir_node *same_node;
- const arch_register_t *same_reg;
- ir_node *load_res;
+ const arch_register_req_t *req = arch_get_out_register_req(irn, i);
+ const arch_register_t *out_reg;
+ int same_pos;
+ ir_node *same_node;
+ const arch_register_t *same_reg;
+ ir_node *load_res;
- if (!arch_register_req_is(reqs[i], should_be_same))
+ if (!arch_register_req_is(req, should_be_same))
continue;
/* get in and out register */
out_reg = arch_irn_get_register(irn, i);
- same_pos = get_first_same(reqs[i]);
+ same_pos = get_first_same(req);
same_node = get_irn_n(irn, same_pos);
same_reg = arch_get_irn_register(same_node);
out_reg != arch_get_irn_register(get_irn_n(irn, n_ia32_index)))
continue;
- load_res = turn_back_am(irn);
+ load_res = ia32_turn_back_am(irn);
arch_set_irn_register(load_res, out_reg);
DBG((dbg, LEVEL_3,
*/
static void ia32_finish_irg_walker(ir_node *block, void *env)
{
- ia32_code_gen_t *cg = env;
ir_node *irn, *next;
+ (void) env;
/* first: turn back AM source if necessary */
for (irn = sched_first(block); ! sched_is_end(irn); irn = next) {
/* check if there is a sub which need to be transformed */
if (is_ia32_Sub(irn) || is_ia32_xSub(irn)) {
- ia32_transform_sub_to_neg_add(irn, cg);
+ ia32_transform_sub_to_neg_add(irn);
}
}
*/
static void ia32_push_on_queue_walker(ir_node *block, void *env)
{
- waitq *wq = env;
+ waitq *wq = (waitq*)env;
waitq_put(wq, block);
}
/**
* Add Copy nodes for not fulfilled should_be_equal constraints
*/
-void ia32_finish_irg(ir_graph *irg, ia32_code_gen_t *cg)
+void ia32_finish_irg(ir_graph *irg)
{
waitq *wq = new_waitq();
irg_block_walk_graph(irg, NULL, ia32_push_on_queue_walker, wq);
while (! waitq_empty(wq)) {
- ir_node *block = waitq_get(wq);
- ia32_finish_irg_walker(block, cg);
+ ir_node *block = (ir_node*)waitq_get(wq);
+ ia32_finish_irg_walker(block, NULL);
}
del_waitq(wq);
}