ir_node *op, ir_node *mem, ir_mode *mode);
typedef enum {
- ia32_SSIGN, ia32_DSIGN, ia32_SABS, ia32_DABS
+ ia32_SSIGN, ia32_DSIGN, ia32_SABS, ia32_DABS, ia32_known_const_max
} ia32_known_const_t;
/****************************************************************************************************
*
****************************************************************************************************/
-struct tv_ent {
- entity *ent;
- tarval *tv;
-};
-
-/* Compares two (entity, tarval) combinations */
-static int cmp_tv_ent(const void *a, const void *b, size_t len) {
- const struct tv_ent *e1 = a;
- const struct tv_ent *e2 = b;
-
- return !(e1->tv == e2->tv);
-}
-
/* Generates an entity for a known FP const (used for FP Neg + Abs) */
-static char *gen_fp_known_const(ir_mode *mode, ia32_known_const_t kct) {
- static set *const_set = NULL;
- struct tv_ent key;
- struct tv_ent *entry;
- char *tp_name;
- char *ent_name;
- char *cnst_str;
+static const char *gen_fp_known_const(ir_mode *mode, ia32_known_const_t kct) {
+ static const struct {
+ const char *tp_name;
+ const char *ent_name;
+ const char *cnst_str;
+ } names [ia32_known_const_max] = {
+ { TP_SFP_SIGN, ENT_SFP_SIGN, SFP_SIGN }, /* ia32_SSIGN */
+ { TP_DFP_SIGN, ENT_DFP_SIGN, DFP_SIGN }, /* ia32_DSIGN */
+ { TP_SFP_ABS, ENT_SFP_ABS, SFP_ABS }, /* ia32_SABS */
+ { TP_DFP_ABS, ENT_DFP_ABS, DFP_ABS } /* ia32_DABS */
+ };
+ static struct entity *ent_cache[ia32_known_const_max];
+
+ const char *tp_name, *ent_name, *cnst_str;
ir_type *tp;
ir_node *cnst;
ir_graph *rem;
entity *ent;
+ tarval *tv;
- if (! const_set) {
- const_set = new_set(cmp_tv_ent, 10);
- }
-
- switch (kct) {
- case ia32_SSIGN:
- tp_name = TP_SFP_SIGN;
- ent_name = ENT_SFP_SIGN;
- cnst_str = SFP_SIGN;
- break;
- case ia32_DSIGN:
- tp_name = TP_DFP_SIGN;
- ent_name = ENT_DFP_SIGN;
- cnst_str = DFP_SIGN;
- break;
- case ia32_SABS:
- tp_name = TP_SFP_ABS;
- ent_name = ENT_SFP_ABS;
- cnst_str = SFP_ABS;
- break;
- case ia32_DABS:
- tp_name = TP_DFP_ABS;
- ent_name = ENT_DFP_ABS;
- cnst_str = DFP_ABS;
- break;
- }
-
-
- key.tv = new_tarval_from_str(cnst_str, strlen(cnst_str), mode);
- key.ent = NULL;
-
- entry = set_insert(const_set, &key, sizeof(key), HASH_PTR(key.tv));
+ ent_name = names[kct].ent_name;
+ if (! ent_cache[kct]) {
+ tp_name = names[kct].tp_name;
+ cnst_str = names[kct].cnst_str;
- if (! entry->ent) {
+ tv = new_tarval_from_str(cnst_str, strlen(cnst_str), mode);
tp = new_type_primitive(new_id_from_str(tp_name), mode);
ent = new_entity(get_glob_type(), new_id_from_str(ent_name), tp);
const code irg */
rem = current_ir_graph;
current_ir_graph = get_const_code_irg();
- cnst = new_Const(mode, key.tv);
+ cnst = new_Const(mode, tv);
current_ir_graph = rem;
set_atomic_ent_value(ent, cnst);
- /* set the entry for hashmap */
- entry->ent = ent;
+ /* cache the entry */
+ ent_cache[kct] = ent;
}
-
return ent_name;
}
* @return The created ia32 Minus node
*/
static ir_node *gen_Minus(ia32_transform_env_t *env, ir_node *op) {
- char *name;
+ const char *name;
ir_node *new_op;
ir_node *noreg_gp = ia32_new_NoReg_gp(env->cg);
ir_node *noreg_fp = ia32_new_NoReg_fp(env->cg);
ir_node *noreg_fp = ia32_new_NoReg_fp(env->cg);
ir_node *nomem = new_NoMem();
int size;
- char *name;
+ const char *name;
if (mode_is_float(mode)) {
res = new_rd_ia32_fAnd(dbg,irg, block, noreg_gp, noreg_gp, op, noreg_fp, nomem, mode_T);
ir_node *val = get_Store_value(node);
ir_node *ptr = get_Store_ptr(node);
ir_node *mem = get_Store_mem(node);
+ ir_mode *mode = get_irn_mode(val);
ir_node *sval = val;
ir_node *new_op;
sval = noreg;
}
- if (mode_is_float(env->mode)) {
- new_op = new_rd_ia32_fStore(env->dbg, env->irg, env->block, ptr, noreg, sval, mem, env->mode);
+ if (mode_is_float(mode)) {
+ new_op = new_rd_ia32_fStore(env->dbg, env->irg, env->block, ptr, noreg, sval, mem, mode_T);
}
- else if (get_mode_size_bits(env->mode) == 8) {
- new_op = new_rd_ia32_Store8Bit(env->dbg, env->irg, env->block, ptr, noreg, sval, mem, env->mode);
+ else if (get_mode_size_bits(mode) == 8) {
+ new_op = new_rd_ia32_Store8Bit(env->dbg, env->irg, env->block, ptr, noreg, sval, mem, mode_T);
}
else {
- new_op = new_rd_ia32_Store(env->dbg, env->irg, env->block, ptr, noreg, sval, mem, env->mode);
+ new_op = new_rd_ia32_Store(env->dbg, env->irg, env->block, ptr, noreg, sval, mem, mode_T);
}
/* stored const is an attribute (saves a register) */
/**
- * Transforms a Cond -> Proj[b] -> Cmp into a CondJmp or CondJmp_i
+ * Transforms a Cond -> Proj[b] -> Cmp into a CondJmp, CondJmp_i or TestJmp
*
* @param env The transformation environment
* @return The transformed node.
ir_node *res = NULL;
ir_node *pred = NULL;
ir_node *noreg = ia32_new_NoReg_gp(env->cg);
- ir_node *nomem = new_NoMem();
ir_node *cmp_a, *cmp_b, *cnst, *expr;
if (is_Proj(sel) && sel_mode == mode_b) {
+ ir_node *nomem = new_NoMem();
+
pred = get_Proj_pred(sel);
/* get both compare operators */
expr = get_expr_op(cmp_a, cmp_b);
if (cnst && expr) {
+ if (mode_is_int(get_irn_mode(expr))) {
+ if (classify_tarval(get_ia32_Immop_tarval(cnst)) == TV_CLASSIFY_NULL) {
+ /* a Cmp A, 0 */
+ ir_node *op1 = expr;
+ ir_node *op2 = expr;
+ ir_node *and = skip_Proj(expr);
+ char *cnst = NULL;
+
+ /* check, if expr is an only once used And operation */
+ if (get_irn_n_edges(expr) == 1 && is_ia32_And(and)) {
+ op1 = get_irn_n(and, 2);
+ op2 = get_irn_n(and, 3);
+
+ cnst = get_ia32_cnst(and);
+ }
+ res = new_rd_ia32_TestJmp(dbg, irg, block, op1, op2, mode_T);
+ set_ia32_pncode(res, get_Proj_proj(sel));
+
+ if (cnst) {
+ copy_ia32_Immop_attr(res, and);
+ }
+
+ SET_IA32_ORIG_NODE(res, get_old_node_name(env));
+ return res;
+ }
+ }
res = new_rd_ia32_CondJmp(dbg, irg, block, noreg, noreg, expr, noreg, nomem, mode_T);
set_ia32_Immop_attr(res, cnst);
}
}
SET_IA32_ORIG_NODE(res, get_old_node_name(env));
-
return res;
}
*/
void ia32_transform_node(ir_node *node, void *env) {
ia32_code_gen_t *cgenv = (ia32_code_gen_t *)env;
- opcode code = get_irn_opcode(node);
+ opcode code;
ir_node *asm_node = NULL;
ia32_transform_env_t tenv;
DBG((tenv.mod, LEVEL_1, "check %+F ... ", node));
+ code = get_irn_opcode(node);
switch (code) {
BINOP(Add);
BINOP(Sub);
projects / libfirm / blobdiff