* @return
* The operations.
*/
-static ir_op_ops *firm_set_default_computed_value(ir_opcode code, ir_op_ops *ops) {
+static ir_op_ops *firm_set_default_computed_value(ir_opcode code, ir_op_ops *ops)
+{
#define CASE(a) \
case iro_##a: \
ops->computed_value = computed_value_##a; \
if (classify_tarval(value_of(b)) == TV_CLASSIFY_ONE) { /* div(x, 1) == x */
/* Turn Div into a tuple (mem, bad, a) */
ir_node *mem = get_Div_mem(n);
- ir_node *blk = get_nodes_block(n);
+ ir_node *blk = get_irn_n(n, -1);
turn_into_tuple(n, pn_Div_max);
set_Tuple_pred(n, pn_Div_M, mem);
set_Tuple_pred(n, pn_Div_X_regular, new_r_Jmp(current_ir_graph, blk));
if (classify_tarval(value_of(b)) == TV_CLASSIFY_ONE) { /* Quot(x, 1) == x */
/* Turn Quot into a tuple (mem, jmp, bad, a) */
ir_node *mem = get_Quot_mem(n);
- ir_node *blk = get_nodes_block(n);
+ ir_node *blk = get_irn_n(n, -1);
turn_into_tuple(n, pn_Quot_max);
set_Tuple_pred(n, pn_Quot_M, mem);
set_Tuple_pred(n, pn_Quot_X_regular, new_r_Jmp(current_ir_graph, blk));
/* Turn DivMod into a tuple (mem, jmp, bad, a, 0) */
ir_node *a = get_DivMod_left(n);
ir_node *mem = get_Div_mem(n);
- ir_node *blk = get_nodes_block(n);
+ ir_node *blk = get_irn_n(n, -1);
ir_mode *mode = get_DivMod_resmode(n);
turn_into_tuple(n, pn_DivMod_max);
ir_mode *a_mode = get_irn_mode(a);
if (n_mode == a_mode) { /* No Conv necessary */
- /* leave strict floating point Conv's */
- if (get_Conv_strict(n))
- return n;
+ if (get_Conv_strict(n)) {
+ /* special case: the predecessor might be a also a Conv */
+ if (is_Conv(a)) {
+ if (! get_Conv_strict(a)) {
+ /* first one is not strict, kick it */
+ set_Conv_op(n, get_Conv_op(a));
+ return n;
+ }
+ /* else both are strict conv, second is superflous */
+ } else {
+ /* leave strict floating point Conv's */
+ return n;
+ }
+ }
n = a;
DBG_OPT_ALGSIM0(oldn, n, FS_OPT_CONV);
} else if (get_irn_op(a) == op_Conv) { /* Conv(Conv(b)) */
if (op == op_Load) {
/* get the Load address */
ir_node *addr = get_Load_ptr(a);
- ir_node *blk = get_nodes_block(a);
+ ir_node *blk = get_irn_n(a, -1);
ir_node *confirm;
if (value_not_null(addr, &confirm)) {
} else if (op == op_Store) {
/* get the load/store address */
ir_node *addr = get_Store_ptr(a);
- ir_node *blk = get_nodes_block(a);
+ ir_node *blk = get_irn_n(a, -1);
ir_node *confirm;
if (value_not_null(addr, &confirm)) {
if (mode_is_num(mode)) {
if (a == b) {
- ir_node *block = get_nodes_block(n);
+ ir_node *block = get_irn_n(n, -1);
n = new_rd_Mul(
get_irn_dbg_info(n),
n = new_rd_Sub(
get_irn_dbg_info(n),
current_ir_graph,
- get_nodes_block(n),
+ get_irn_n(n, -1),
b,
get_Minus_op(a),
mode);
n = new_rd_Sub(
get_irn_dbg_info(n),
current_ir_graph,
- get_nodes_block(n),
+ get_irn_n(n, -1),
a,
get_Minus_op(b),
mode);
ir_node *mb = get_Mul_right(a);
if (b == ma) {
- ir_node *blk = get_nodes_block(n);
+ ir_node *blk = get_irn_n(n, -1);
n = new_rd_Mul(
get_irn_dbg_info(n), current_ir_graph, blk,
ma,
mode);
DBG_OPT_ALGSIM0(oldn, n, FS_OPT_ADD_MUL_A_X_A);
} else if (b == mb) {
- ir_node *blk = get_nodes_block(n);
+ ir_node *blk = get_irn_n(n, -1);
n = new_rd_Mul(
get_irn_dbg_info(n), current_ir_graph, blk,
mb,
ir_node *mb = get_Mul_right(b);
if (a == ma) {
- ir_node *blk = get_nodes_block(n);
+ ir_node *blk = get_irn_n(n, -1);
n = new_rd_Mul(
get_irn_dbg_info(n), current_ir_graph, blk,
ma,
mode);
DBG_OPT_ALGSIM0(oldn, n, FS_OPT_ADD_MUL_A_X_A);
} else if (a == mb) {
- ir_node *blk = get_nodes_block(n);
+ ir_node *blk = get_irn_n(n, -1);
n = new_rd_Mul(
get_irn_dbg_info(n), current_ir_graph, blk,
mb,
}
}
/* Here we rely on constants be on the RIGHT side */
- else if (is_Not(a) && classify_Const(b) == CNST_ONE) {
+ else if (get_mode_arithmetic(mode) == irma_twos_complement &&
+ is_Not(a) && classify_Const(b) == CNST_ONE) {
/* ~x + 1 = -x */
ir_node *op = get_Not_op(a);
- ir_node *blk = get_nodes_block(n);
+ ir_node *blk = get_irn_n(n, -1);
n = new_rd_Minus(get_irn_dbg_info(n), current_ir_graph, blk, op, mode);
DBG_OPT_ALGSIM0(oldn, n, FS_OPT_NOT_PLUS_1);
}
if (left == b) {
if (mode != get_irn_mode(right)) {
/* This Sub is an effective Cast */
- right = new_r_Conv(get_irn_irg(n), get_nodes_block(n), right, mode);
+ right = new_r_Conv(get_irn_irg(n), get_irn_n(n, -1), right, mode);
}
n = right;
DBG_OPT_ALGSIM1(oldn, a, b, n, FS_OPT_ADD_SUB);
} else if (right == b) {
if (mode != get_irn_mode(left)) {
/* This Sub is an effective Cast */
- left = new_r_Conv(get_irn_irg(n), get_nodes_block(n), left, mode);
+ left = new_r_Conv(get_irn_irg(n), get_irn_n(n, -1), left, mode);
}
n = left;
DBG_OPT_ALGSIM1(oldn, a, b, n, FS_OPT_ADD_SUB);
n = new_rd_Minus(
get_irn_dbg_info(n),
current_ir_graph,
- get_nodes_block(n),
+ get_irn_n(n, -1),
b,
mode);
DBG_OPT_ALGSIM0(oldn, n, FS_OPT_SUB_0_A);
ir_node *mb = get_Mul_right(a);
if (ma == b) {
- ir_node *blk = get_nodes_block(n);
+ ir_node *blk = get_irn_n(n, -1);
n = new_rd_Mul(
get_irn_dbg_info(n),
current_ir_graph, blk,
mode);
DBG_OPT_ALGSIM0(oldn, n, FS_OPT_SUB_MUL_A_X_A);
} else if (mb == b) {
- ir_node *blk = get_nodes_block(n);
+ ir_node *blk = get_irn_n(n, -1);
n = new_rd_Mul(
get_irn_dbg_info(n),
current_ir_graph, blk,
} else if (get_irn_op(a) == op_Sub) {
ir_node *x = get_Sub_left(a);
ir_node *y = get_Sub_right(a);
- ir_node *blk = get_nodes_block(n);
+ ir_node *blk = get_irn_n(n, -1);
ir_mode *m_b = get_irn_mode(b);
ir_mode *m_y = get_irn_mode(y);
ir_node *add;
else if (value_of(b) == get_mode_minus_one(mode))
r = a;
if (r) {
- n = new_rd_Minus(get_irn_dbg_info(n), current_ir_graph, get_nodes_block(n), r, mode);
+ n = new_rd_Minus(get_irn_dbg_info(n), current_ir_graph, get_irn_n(n, -1), r, mode);
DBG_OPT_ALGSIM1(oldn, a, b, n, FS_OPT_MUL_MINUS_1);
return n;
}
}
+ if (get_mode_arithmetic(mode) == irma_ieee754) {
+ if (is_Const(a)) {
+ tarval *tv = get_Const_tarval(a);
+ if (tarval_ieee754_get_exponent(tv) == 1 && tarval_ieee754_zero_mantissa(tv)) {
+ n = new_rd_Add(get_irn_dbg_info(n), current_ir_graph, get_irn_n(n, -1), b, b, mode);
+ DBG_OPT_ALGSIM1(oldn, a, b, n, FS_OPT_ADD_A_A);
+ return n;
+ }
+ }
+ else if (is_Const(b)) {
+ tarval *tv = get_Const_tarval(b);
+ if (tarval_ieee754_get_exponent(tv) == 1 && tarval_ieee754_zero_mantissa(tv)) {
+ n = new_rd_Add(get_irn_dbg_info(n), current_ir_graph, get_irn_n(n, -1), a, a, mode);
+ DBG_OPT_ALGSIM1(oldn, a, b, n, FS_OPT_ADD_A_A);
+ return n;
+ }
+ }
+ }
return arch_dep_replace_mul_with_shifts(n);
} /* transform_node_Mul */
*/
static ir_node *transform_node_Div(ir_node *n) {
tarval *tv = value_of(n);
+ ir_mode *mode = get_Div_resmode(n);
ir_node *value = n;
- /* BEWARE: it is NOT possible to optimize a/a to 1, as this may cause a exception */
-
if (tv != tarval_bad) {
value = new_Const(get_tarval_mode(tv), tv);
DBG_OPT_CSTEVAL(n, value);
- } else /* Try architecture dependent optimization */
- value = arch_dep_replace_div_by_const(n);
+ goto make_tuple;
+ } else {
+ ir_node *a = get_Div_left(n);
+ ir_node *b = get_Div_right(n);
+ ir_node *dummy;
+
+ if (a == b && value_not_zero(a, &dummy)) {
+ /* BEWARE: we can optimize a/a to 1 only if this cannot cause a exception */
+ value = new_Const(mode, get_mode_one(mode));
+ DBG_OPT_CSTEVAL(n, value);
+ goto make_tuple;
+ } else {
+ if (mode_is_signed(mode) && is_Const(b)) {
+ tarval *tv = get_Const_tarval(b);
+
+ if (tv == get_mode_minus_one(mode)) {
+ /* a / -1 */
+ value = new_rd_Minus(get_irn_dbg_info(n), current_ir_graph, get_irn_n(n, -1), a, mode);
+ DBG_OPT_CSTEVAL(n, value);
+ goto make_tuple;
+ }
+ }
+ /* Try architecture dependent optimization */
+ value = arch_dep_replace_div_by_const(n);
+ }
+ }
if (value != n) {
+ ir_node *mem, *blk;
+
+make_tuple:
/* Turn Div into a tuple (mem, jmp, bad, value) */
- ir_node *mem = get_Div_mem(n);
- ir_node *blk = get_nodes_block(n);
+ mem = get_Div_mem(n);
+ blk = get_irn_n(n, -1);
turn_into_tuple(n, pn_Div_max);
set_Tuple_pred(n, pn_Div_M, mem);
*/
static ir_node *transform_node_Mod(ir_node *n) {
tarval *tv = value_of(n);
+ ir_mode *mode = get_Mod_resmode(n);
ir_node *value = n;
- /* BEWARE: it is NOT possible to optimize a%a to 0, as this may cause a exception */
-
if (tv != tarval_bad) {
value = new_Const(get_tarval_mode(tv), tv);
DBG_OPT_CSTEVAL(n, value);
- } else /* Try architecture dependent optimization */
- value = arch_dep_replace_mod_by_const(n);
+ goto make_tuple;
+ } else {
+ ir_node *a = get_Mod_left(n);
+ ir_node *b = get_Mod_right(n);
+ ir_node *dummy;
+
+ if (a == b && value_not_zero(a, &dummy)) {
+ /* BEWARE: we can optimize a%a to 0 only if this cannot cause a exception */
+ value = new_Const(mode, get_mode_null(mode));
+ DBG_OPT_CSTEVAL(n, value);
+ goto make_tuple;
+ } else {
+ if (mode_is_signed(mode) && is_Const(b)) {
+ tarval *tv = get_Const_tarval(b);
+
+ if (tv == get_mode_minus_one(mode)) {
+ /* a % -1 = 0 */
+ value = new_Const(mode, get_mode_null(mode));
+ DBG_OPT_CSTEVAL(n, value);
+ goto make_tuple;
+ }
+ }
+ /* Try architecture dependent optimization */
+ value = arch_dep_replace_mod_by_const(n);
+ }
+ }
if (value != n) {
+ ir_node *mem, *blk;
+
+make_tuple:
/* Turn Mod into a tuple (mem, jmp, bad, value) */
- ir_node *mem = get_Mod_mem(n);
- ir_node *blk = get_nodes_block(n);
+ mem = get_Mod_mem(n);
+ blk = get_irn_n(n, -1);
turn_into_tuple(n, pn_Mod_max);
set_Tuple_pred(n, pn_Mod_M, mem);
* Transform a DivMod node.
*/
static ir_node *transform_node_DivMod(ir_node *n) {
- int evaluated = 0;
-
+ ir_node *dummy;
ir_node *a = get_DivMod_left(n);
ir_node *b = get_DivMod_right(n);
- ir_mode *mode = get_irn_mode(a);
+ ir_mode *mode = get_DivMod_resmode(n);
tarval *ta = value_of(a);
tarval *tb = value_of(b);
-
- if (!(mode_is_int(mode) && mode_is_int(get_irn_mode(b))))
- return n;
-
- /* BEWARE: it is NOT possible to optimize a/a to 1, as this may cause a exception */
+ int evaluated = 0;
if (tb != tarval_bad) {
if (tb == get_mode_one(get_tarval_mode(tb))) {
- b = new_Const (mode, get_mode_null(mode));
- evaluated = 1;
-
+ b = new_Const(mode, get_mode_null(mode));
DBG_OPT_CSTEVAL(n, b);
+ goto make_tuple;
} else if (ta != tarval_bad) {
tarval *resa, *resb;
- resa = tarval_div (ta, tb);
+ resa = tarval_div(ta, tb);
if (resa == tarval_bad) return n; /* Causes exception!!! Model by replacing through
Jmp for X result!? */
- resb = tarval_mod (ta, tb);
+ resb = tarval_mod(ta, tb);
if (resb == tarval_bad) return n; /* Causes exception! */
- a = new_Const (mode, resa);
- b = new_Const (mode, resb);
- evaluated = 1;
-
+ a = new_Const(mode, resa);
+ b = new_Const(mode, resb);
DBG_OPT_CSTEVAL(n, a);
DBG_OPT_CSTEVAL(n, b);
+ goto make_tuple;
+ } else if (mode_is_signed(mode) && tb == get_mode_minus_one(mode)) {
+ a = new_rd_Minus(get_irn_dbg_info(n), current_ir_graph, get_irn_n(n, -1), a, mode);
+ b = new_Const(mode, get_mode_null(mode));
+ DBG_OPT_CSTEVAL(n, a);
+ DBG_OPT_CSTEVAL(n, b);
+ goto make_tuple;
} else { /* Try architecture dependent optimization */
arch_dep_replace_divmod_by_const(&a, &b, n);
evaluated = a != NULL;
}
- } else if (ta == get_mode_null(mode)) {
+ } else if (a == b) {
+ if (value_not_zero(a, &dummy)) {
+ /* a/a && a != 0 */
+ a = new_Const(mode, get_mode_one(mode));
+ b = new_Const(mode, get_mode_null(mode));
+ DBG_OPT_CSTEVAL(n, a);
+ DBG_OPT_CSTEVAL(n, b);
+ goto make_tuple;
+ } else {
+ /* BEWARE: it is NOT possible to optimize a/a to 1, as this may cause a exception */
+ return n;
+ }
+ } else if (ta == get_mode_null(mode) && value_not_zero(b, &dummy)) {
/* 0 / non-Const = 0 */
b = a;
- evaluated = 1;
+ goto make_tuple;
}
if (evaluated) { /* replace by tuple */
- ir_node *mem = get_DivMod_mem(n);
- ir_node *blk = get_nodes_block(n);
+ ir_node *mem, *blk;
+
+make_tuple:
+ mem = get_DivMod_mem(n);
+ blk = get_irn_n(n, -1);
turn_into_tuple(n, pn_DivMod_max);
set_Tuple_pred(n, pn_DivMod_M, mem);
set_Tuple_pred(n, pn_DivMod_X_regular, new_r_Jmp(current_ir_graph, blk));
return n;
} /* transform_node_DivMod */
+/**
+ * Optimize x / c to x * (1/c)
+ */
+static ir_node *transform_node_Quot(ir_node *n) {
+ ir_mode *mode = get_Quot_resmode(n);
+ ir_node *oldn = n;
+
+ if (get_mode_arithmetic(mode) == irma_ieee754) {
+ ir_node *b = get_Quot_right(n);
+
+ if (is_Const(b)) {
+ tarval *tv = get_Const_tarval(b);
+
+ tv = tarval_quo(get_mode_one(mode), tv);
+
+ /* Do the transformation if the result is either exact or we are not
+ using strict rules. */
+ if (tv != tarval_bad &&
+ (tarval_ieee754_get_exact() || (get_irg_fp_model(current_ir_graph) & fp_strict_algebraic) == 0)) {
+ ir_node *blk = get_irn_n(n, -1);
+ ir_node *c = new_r_Const(current_ir_graph, blk, mode, tv);
+ ir_node *a = get_Quot_left(n);
+ ir_node *m = new_rd_Mul(get_irn_dbg_info(n), current_ir_graph, blk, a, c, mode);
+ ir_node *mem = get_Quot_mem(n);
+
+ turn_into_tuple(n, pn_Quot_max);
+ set_Tuple_pred(n, pn_Quot_M, mem);
+ set_Tuple_pred(n, pn_Quot_X_regular, new_r_Jmp(current_ir_graph, blk));
+ set_Tuple_pred(n, pn_Quot_X_except, new_r_Bad(current_ir_graph));
+ set_Tuple_pred(n, pn_Quot_res, m);
+ DBG_OPT_ALGSIM1(oldn, a, b, m, FS_OPT_FP_INV_MUL);
+ }
+ }
+ }
+ return n;
+} /* transform_node_Quot */
+
/**
* Optimize Abs(x) into x if x is Confirmed >= 0
* Optimize Abs(x) into -x if x is Confirmed <= 0
* not run it in the equivalent_node() context.
*/
n = new_rd_Minus(get_irn_dbg_info(n), current_ir_graph,
- get_nodes_block(n), a, mode);
+ get_irn_n(n, -1), a, mode);
DBG_OPT_CONFIRM(oldn, n);
} else if (sign == value_classified_positive) {
ir_mode *a_mode = get_irn_mode(a_op);
ir_mode *b_mode = get_irn_mode(b_op);
if(a_mode == b_mode && (mode_is_int(a_mode) || a_mode == mode_b)) {
- ir_node *blk = get_nodes_block(n);
+ ir_node *blk = get_irn_n(n, -1);
n = exact_copy(n);
set_binop_left(n, a_op);
if (c != NULL) {
/* (a sop c) & (b sop c) => (a & b) sop c */
- ir_node *blk = get_nodes_block(n);
+ ir_node *blk = get_irn_n(n, -1);
ir_node *new_n = exact_copy(n);
set_binop_left(new_n, op1);
n = new_rd_And(dbgi, irg, blk, new_n, c, mode);
} else {
n = exact_copy(a);
- set_nodes_block(n, blk);
+ set_irn_n(n, -1, blk);
set_binop_left(n, new_n);
set_binop_right(n, c);
}
if (a == b) {
/* a ^ a = 0 */
- n = new_rd_Const(get_irn_dbg_info(n), current_ir_graph, get_nodes_block(n),
+ n = new_rd_Const(get_irn_dbg_info(n), current_ir_graph, get_irn_n(n, -1),
mode, get_mode_null(mode));
DBG_OPT_ALGSIM0(oldn, n, FS_OPT_EOR_A_A);
} else if ((mode == mode_b)
&& (classify_tarval (value_of(b)) == TV_CLASSIFY_ONE)
&& (get_irn_op(get_Proj_pred(a)) == op_Cmp)) {
/* The Eor negates a Cmp. The Cmp has the negated result anyways! */
- n = new_r_Proj(current_ir_graph, get_nodes_block(n), get_Proj_pred(a),
+ n = new_r_Proj(current_ir_graph, get_irn_n(n, -1), get_Proj_pred(a),
mode_b, get_negated_pnc(get_Proj_proj(a), mode));
DBG_OPT_ALGSIM0(oldn, n, FS_OPT_EOR_TO_NOT_BOOL);
&& (classify_tarval (value_of(b)) == TV_CLASSIFY_ONE)) {
/* The Eor is a Not. Replace it by a Not. */
/* ????!!!Extend to bitfield 1111111. */
- n = new_r_Not(current_ir_graph, get_nodes_block(n), a, mode_b);
+ n = new_r_Not(current_ir_graph, get_irn_n(n, -1), a, mode_b);
DBG_OPT_ALGSIM0(oldn, n, FS_OPT_EOR_TO_NOT);
} else {
&& (get_irn_mode(a) == mode_b)
&& (get_irn_op(get_Proj_pred(a)) == op_Cmp)) {
/* We negate a Cmp. The Cmp has the negated result anyways! */
- n = new_r_Proj(current_ir_graph, get_nodes_block(n), get_Proj_pred(a),
+ n = new_r_Proj(current_ir_graph, get_irn_n(n, -1), get_Proj_pred(a),
mode_b, get_negated_pnc(get_Proj_proj(a), mode_b));
DBG_OPT_ALGSIM0(oldn, n, FS_OPT_NOT_CMP);
return n;
if (op_a == op_Sub && classify_Const(get_Sub_right(a)) == CNST_ONE) {
/* ~(x-1) = -x */
ir_node *op = get_Sub_left(a);
- ir_node *blk = get_nodes_block(n);
+ ir_node *blk = get_irn_n(n, -1);
n = new_rd_Minus(get_irn_dbg_info(n), current_ir_graph, blk, op, get_irn_mode(n));
DBG_OPT_ALGSIM0(oldn, n, FS_OPT_NOT_MINUS_1);
}
static ir_node *transform_node_Minus(ir_node *n) {
ir_node *c, *oldn = n;
ir_node *a = get_Minus_op(n);
+ ir_mode *mode;
HANDLE_UNOP_PHI(tarval_neg,a,c);
- if (is_Not(a)) {
+ mode = get_irn_mode(a);
+ if (get_mode_arithmetic(mode) == irma_twos_complement && is_Not(a)) {
/* -(~x) = x + 1 */
ir_node *op = get_Not_op(a);
- ir_mode *mode = get_irn_mode(op);
tarval *tv = get_mode_one(mode);
- ir_node *blk = get_nodes_block(n);
+ ir_node *blk = get_irn_n(n, -1);
ir_node *c = new_r_Const(current_ir_graph, blk, mode, tv);
n = new_rd_Add(get_irn_dbg_info(n), current_ir_graph, blk, op, c, mode);
DBG_OPT_ALGSIM2(oldn, a, n, FS_OPT_MINUS_NOT);
ir_type *tp = get_irn_type(n);
if (get_irn_op(pred) == op_Const && get_Const_type(pred) != tp) {
- n = new_rd_Const_type(NULL, current_ir_graph, get_nodes_block(pred), get_irn_mode(pred),
+ n = new_rd_Const_type(NULL, current_ir_graph, get_irn_n(pred, -1), get_irn_mode(pred),
get_Const_tarval(pred), tp);
DBG_OPT_CSTEVAL(oldn, n);
} else if ((get_irn_op(pred) == op_SymConst) && (get_SymConst_value_type(pred) != tp)) {
- n = new_rd_SymConst_type(NULL, current_ir_graph, get_nodes_block(pred), get_SymConst_symbol(pred),
+ n = new_rd_SymConst_type(NULL, current_ir_graph, get_irn_n(pred, -1), get_SymConst_symbol(pred),
get_SymConst_kind(pred), tp);
DBG_OPT_CSTEVAL(oldn, n);
}
proj_nr = get_Proj_proj(proj);
switch (proj_nr) {
case pn_Div_X_regular:
- return new_r_Jmp(current_ir_graph, get_nodes_block(div));
+ return new_r_Jmp(current_ir_graph, get_irn_n(div, -1));
case pn_Div_X_except:
/* we found an exception handler, remove it */
switch (proj_nr) {
case pn_Mod_X_regular:
- return new_r_Jmp(current_ir_graph, get_nodes_block(mod));
+ return new_r_Jmp(current_ir_graph, get_irn_n(mod, -1));
case pn_Mod_X_except:
/* we found an exception handler, remove it */
switch (proj_nr) {
case pn_DivMod_X_regular:
- return new_r_Jmp(current_ir_graph, get_nodes_block(divmod));
+ return new_r_Jmp(current_ir_graph, get_irn_n(divmod, -1));
case pn_DivMod_X_except:
/* we found an exception handler, remove it */
*/
if ((proj_nr == pn_Cmp_Eq || proj_nr == pn_Cmp_Lg) &&
(get_irn_op(left) == op_And)) {
- if (is_single_bit_tarval(tv)) {
+ if (tarval_is_single_bit(tv)) {
/* check for Constant's match. We have check hare the tarvals,
because our const might be changed */
ir_node *la = get_And_left(left);
}
if (changed) {
- ir_node *block = get_nodes_block(n); /* Beware of get_nodes_Block() */
+ ir_node *block = get_irn_n(n, -1); /* Beware of get_nodes_Block() */
if (changed & 2) /* need a new Const */
right = new_Const(mode, tv);
in[i] = get_Confirm_value(pred);
}
/* move the Confirm nodes "behind" the Phi */
- block = get_nodes_block(phi);
+ block = get_irn_n(phi, -1);
new_Phi = new_r_Phi(current_ir_graph, block, n, in, get_irn_mode(phi));
return new_r_Confirm(current_ir_graph, block, new_Phi, bound, pnc);
}
* OR c2 ===> OR
* AND c1
* OR
+ *
+ *
+ * value c2 value c1
+ * AND c1 ===> OR if (c1 | c2) == 0x111..11
+ * OR
*/
static ir_node *transform_node_Or_bf_store(ir_node *or) {
ir_node *and, *c1;
tarval *tv1, *tv2, *tv3, *tv4, *tv, *n_tv4, *n_tv2;
- get_comm_Binop_Ops(or, &and, &c1);
- if ((get_irn_op(c1) != op_Const) || (get_irn_op(and) != op_And))
- return or;
+ while (1) {
+ get_comm_Binop_Ops(or, &and, &c1);
+ if (!is_Const(c1) || !is_And(and))
+ return or;
- get_comm_Binop_Ops(and, &or_l, &c2);
- if ((get_irn_op(c2) != op_Const) || (get_irn_op(or_l) != op_Or))
- return or;
+ get_comm_Binop_Ops(and, &or_l, &c2);
+ if (!is_Const(c2))
+ return or;
- get_comm_Binop_Ops(or_l, &and_l, &c3);
- if ((get_irn_op(c3) != op_Const) || (get_irn_op(and_l) != op_And))
- return or;
+ tv1 = get_Const_tarval(c1);
+ tv2 = get_Const_tarval(c2);
- get_comm_Binop_Ops(and_l, &value, &c4);
- if (get_irn_op(c4) != op_Const)
- return or;
+ tv = tarval_or(tv1, tv2);
+ if (classify_tarval(tv) == TV_CLASSIFY_ALL_ONE) {
+ /* the AND does NOT clear a bit with isn't set be the OR */
+ set_Or_left(or, or_l);
+ set_Or_right(or, c1);
- /* ok, found the pattern, check for conditions */
- assert(mode == get_irn_mode(and));
- assert(mode == get_irn_mode(or_l));
- assert(mode == get_irn_mode(and_l));
+ /* check for more */
+ continue;
+ }
- tv1 = get_Const_tarval(c1);
- tv2 = get_Const_tarval(c2);
- tv3 = get_Const_tarval(c3);
- tv4 = get_Const_tarval(c4);
+ if (!is_Or(or_l))
+ return or;
- tv = tarval_or(tv4, tv2);
- if (classify_tarval(tv) != TV_CLASSIFY_ALL_ONE) {
- /* have at least one 0 at the same bit position */
- return or;
- }
+ get_comm_Binop_Ops(or_l, &and_l, &c3);
+ if (!is_Const(c3) || !is_And(and_l))
+ return or;
- n_tv4 = tarval_not(tv4);
- if (tv3 != tarval_and(tv3, n_tv4)) {
- /* bit in the or_mask is outside the and_mask */
- return or;
- }
+ get_comm_Binop_Ops(and_l, &value, &c4);
+ if (!is_Const(c4))
+ return or;
- n_tv2 = tarval_not(tv2);
- if (tv1 != tarval_and(tv1, n_tv2)) {
- /* bit in the or_mask is outside the and_mask */
- return or;
- }
+ /* ok, found the pattern, check for conditions */
+ assert(mode == get_irn_mode(and));
+ assert(mode == get_irn_mode(or_l));
+ assert(mode == get_irn_mode(and_l));
+
+ tv3 = get_Const_tarval(c3);
+ tv4 = get_Const_tarval(c4);
+
+ tv = tarval_or(tv4, tv2);
+ if (classify_tarval(tv) != TV_CLASSIFY_ALL_ONE) {
+ /* have at least one 0 at the same bit position */
+ return or;
+ }
- /* ok, all conditions met */
- block = get_nodes_block(or);
+ n_tv4 = tarval_not(tv4);
+ if (tv3 != tarval_and(tv3, n_tv4)) {
+ /* bit in the or_mask is outside the and_mask */
+ return or;
+ }
+
+ n_tv2 = tarval_not(tv2);
+ if (tv1 != tarval_and(tv1, n_tv2)) {
+ /* bit in the or_mask is outside the and_mask */
+ return or;
+ }
- new_and = new_r_And(current_ir_graph, block,
- value, new_r_Const(current_ir_graph, block, mode, tarval_and(tv4, tv2)), mode);
+ /* ok, all conditions met */
+ block = get_irn_n(or, -1);
- new_const = new_r_Const(current_ir_graph, block, mode, tarval_or(tv3, tv1));
+ new_and = new_r_And(current_ir_graph, block,
+ value, new_r_Const(current_ir_graph, block, mode, tarval_and(tv4, tv2)), mode);
- set_Or_left(or, new_and);
- set_Or_right(or, new_const);
+ new_const = new_r_Const(current_ir_graph, block, mode, tarval_or(tv3, tv1));
- /* check for more */
- return transform_node_Or_bf_store(or);
+ set_Or_left(or, new_and);
+ set_Or_right(or, new_const);
+
+ /* check for more */
+ }
} /* transform_node_Or_bf_store */
/**
return or;
/* yet, condition met */
- block = get_nodes_block(or);
+ block = get_irn_n(or, -1);
n = new_r_Rot(current_ir_graph, block, x, c1, mode);
return or;
/* yet, condition met */
- block = get_nodes_block(or);
+ block = get_irn_n(or, -1);
/* a Rot Left */
n = new_r_Rot(current_ir_graph, block, x, v, mode);
if (flag) {
/* ok, we can replace it */
- ir_node *in[2], *irn, *block = get_nodes_block(n);
+ ir_node *in[2], *irn, *block = get_irn_n(n, -1);
in[0] = get_binop_left(left);
in[1] = new_r_Const(current_ir_graph, block, get_tarval_mode(res), res);
ir_node *oldn = n, *sel = get_Mux_sel(n);
ir_mode *mode = get_irn_mode(n);
+ if (mode == mode_b) {
+ ir_node *t = get_Mux_true(n);
+ ir_node *f = get_Mux_false(n);
+ dbg_info *dbg = get_irn_dbg_info(n);
+ ir_node *block = get_irn_n(n, -1);
+ ir_graph *irg = current_ir_graph;
+
+ if (is_Const(t)) {
+ tarval *tv_t = get_Const_tarval(t);
+ if (tv_t == tarval_b_true) {
+ if (is_Const(f)) {
+ assert(get_Const_tarval(f) == tarval_b_false);
+ return sel;
+ } else {
+ return new_rd_Or(dbg, irg, block, sel, f, mode_b);
+ }
+ } else {
+ ir_node* not_sel = new_rd_Not(dbg, irg, block, sel, mode_b);
+ assert(tv_t == tarval_b_false);
+ if (is_Const(f)) {
+ assert(get_Const_tarval(f) == tarval_b_true);
+ return not_sel;
+ } else {
+ return new_rd_And(dbg, irg, block, not_sel, f, mode_b);
+ }
+ }
+ } else if (is_Const(f)) {
+ tarval *tv_f = get_Const_tarval(f);
+ if (tv_f == tarval_b_true) {
+ ir_node* not_sel = new_rd_Not(dbg, irg, block, sel, mode_b);
+ return new_rd_Or(dbg, irg, block, not_sel, t, mode_b);
+ } else {
+ assert(tv_f == tarval_b_false);
+ return new_rd_And(dbg, irg, block, sel, t, mode_b);
+ }
+ }
+ }
+
if (get_irn_op(sel) == op_Proj && !mode_honor_signed_zeros(mode)) {
ir_node *cmp = get_Proj_pred(sel);
long proj_nr = get_Proj_proj(sel);
ir_node *t = get_Mux_true(n);
if (get_irn_op(cmp) == op_Cmp && classify_Const(get_Cmp_right(cmp)) == CNST_NULL) {
- ir_node *block = get_nodes_block(n);
+ ir_node *block = get_irn_n(n, -1);
/*
* Note: normalization puts the constant on the right site,
CASE(Div);
CASE(Mod);
CASE(DivMod);
+ CASE(Quot);
CASE(Abs);
CASE(Cond);
CASE(And);
get_Load_volatility(b) == volatility_is_volatile)
/* NEVER do CSE on volatile Loads */
return 1;
+ /* do not CSE Loads with different alignment. Be conservative. */
+ if (get_Load_align(a) != get_Load_align(b))
+ return 1;
return get_Load_mode(a) != get_Load_mode(b);
} /* node_cmp_attr_Load */
/** Compares the attributes of two Store nodes. */
static int node_cmp_attr_Store(ir_node *a, ir_node *b) {
+ /* do not CSE Stores with different alignment. Be conservative. */
+ if (get_Store_align(a) != get_Store_align(b))
+ return 1;
+
/* NEVER do CSE on volatile Stores */
return (get_Store_volatility(a) == volatility_is_volatile ||
get_Store_volatility(b) == volatility_is_volatile);
ir_node *old = n;
n = identify(value_table, n);
- if (get_nodes_block(old) != get_nodes_block(n))
+ if (get_irn_n(old, -1) != get_irn_n(n, -1))
set_irg_pinned(current_ir_graph, op_pin_state_floats);
return n;
} /* identify_cons */
return optimize_in_place_2(n);
} /* optimize_in_place */
-/**
- * Return the block for all default nodes.
- */
-static ir_node *get_block_default(const ir_node *self) {
- return get_irn_n(self, -1);
-}
-
-/**
- * Sets the block for all default nodes.
- */
-static void set_block_default(ir_node *self, ir_node *blk) {
- set_irn_n(self, -1, blk);
-}
-
-/**
- * It's not allowed to get the block of a block. Anyway, returns
- * the macroblock header in release mode.
- */
-static ir_node *get_block_Block(const ir_node *self) {
- assert(!"get_nodes_block() called for a block");
- return get_irn_n(self, -1);
-}
-
-/**
- * It's not allowed to set the block of a block. In release mode sets
- * the macroblock header.
- */
-static void set_block_Block(ir_node *self, ir_node *blk) {
- assert(!"set_nodes_block() called for a block");
- set_irn_n(self, -1, blk);
-}
-
-/**
- * The anchor is always placed in the endblock or a graph.
- */
-static ir_node *get_block_Anchor(const ir_node *self) {
- return get_irn_n(self, anchor_end_block);
-}
-
-/**
- * It's forbidden to set the anchor block.
- */
-static void set_block_Anchor(ir_node *self, ir_node *blk) {
- (void) self;
- (void) blk;
- assert(!"set_nodes_block() called for the Anchor");
-}
-
-/**
- * Proj nodes are always in the block of it's predecessor.
- */
-static ir_node *get_block_Proj(const ir_node *self) {
- ir_node *pred = get_Proj_pred(self);
- return get_nodes_block(pred);
-}
-
-/**
- * Proj nodes silently ignore the block set request.
- */
-static void set_block_Proj(ir_node *self, ir_node *blk) {
- (void) self;
- (void) blk;
- assert(blk == get_block_Proj(self) && "trying to move Proj in another block!");
-}
-
-/**
- * Set the default get_block operation.
- */
-static ir_op_ops *firm_set_default_get_block(ir_opcode code, ir_op_ops *ops) {
-#define CASE(a) \
- case iro_##a: \
- ops->get_block = get_block_##a; \
- ops->set_block = set_block_##a; \
- break
-
- switch (code) {
- CASE(Block);
- CASE(Anchor);
-#ifndef CAN_PLACE_PROJS
- CASE(Proj);
-#endif
- default:
- /* not allowed to be NULL */
- if (! ops->get_block)
- ops->get_block = get_block_default;
- if (! ops->set_block)
- ops->set_block = set_block_default;
- }
-
- return ops;
-#undef CASE
-} /* firm_set_default_get_block */
-
/*
* Sets the default operation for an ir_ops.
*/
ir_op_ops *firm_set_default_operations(ir_opcode code, ir_op_ops *ops) {
- ops = firm_set_default_get_block(code, ops);
ops = firm_set_default_computed_value(code, ops);
ops = firm_set_default_equivalent_node(code, ops);
ops = firm_set_default_transform_node(code, ops);
projects / libfirm / blobdiff