2 * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
4 * This file is part of libFirm.
6 * This file may be distributed and/or modified under the terms of the
7 * GNU General Public License version 2 as published by the Free Software
8 * Foundation and appearing in the file LICENSE.GPL included in the
9 * packaging of this file.
11 * Licensees holding valid libFirm Professional Edition licenses may use
12 * this file in accordance with the libFirm Commercial License.
13 * Agreement provided with the Software.
15 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
16 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * @brief This file implements the IR transformation from firm into
24 * @author Christian Wuerdig, Matthias Braun
35 #include "irgraph_t.h"
40 #include "iredges_t.h"
52 #include "../benode_t.h"
53 #include "../besched.h"
55 #include "../beutil.h"
56 #include "../beirg_t.h"
57 #include "../betranshlp.h"
60 #include "bearch_ia32_t.h"
61 #include "ia32_common_transform.h"
62 #include "ia32_nodes_attr.h"
63 #include "ia32_transform.h"
64 #include "ia32_new_nodes.h"
65 #include "ia32_map_regs.h"
66 #include "ia32_dbg_stat.h"
67 #include "ia32_optimize.h"
68 #include "ia32_util.h"
69 #include "ia32_address_mode.h"
70 #include "ia32_architecture.h"
72 #include "gen_ia32_regalloc_if.h"
74 #define SFP_SIGN "0x80000000"
75 #define DFP_SIGN "0x8000000000000000"
76 #define SFP_ABS "0x7FFFFFFF"
77 #define DFP_ABS "0x7FFFFFFFFFFFFFFF"
78 #define DFP_INTMAX "9223372036854775807"
80 #define TP_SFP_SIGN "ia32_sfp_sign"
81 #define TP_DFP_SIGN "ia32_dfp_sign"
82 #define TP_SFP_ABS "ia32_sfp_abs"
83 #define TP_DFP_ABS "ia32_dfp_abs"
84 #define TP_INT_MAX "ia32_int_max"
86 #define ENT_SFP_SIGN "IA32_SFP_SIGN"
87 #define ENT_DFP_SIGN "IA32_DFP_SIGN"
88 #define ENT_SFP_ABS "IA32_SFP_ABS"
89 #define ENT_DFP_ABS "IA32_DFP_ABS"
90 #define ENT_INT_MAX "IA32_INT_MAX"
92 #define mode_vfp (ia32_reg_classes[CLASS_ia32_vfp].mode)
93 #define mode_xmm (ia32_reg_classes[CLASS_ia32_xmm].mode)
95 DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
97 static ir_node *initial_fpcw = NULL;
99 extern ir_op *get_op_Mulh(void);
101 typedef ir_node *construct_binop_func(dbg_info *db, ir_graph *irg,
102 ir_node *block, ir_node *base, ir_node *index, ir_node *mem,
103 ir_node *op1, ir_node *op2);
105 typedef ir_node *construct_binop_flags_func(dbg_info *db, ir_graph *irg,
106 ir_node *block, ir_node *base, ir_node *index, ir_node *mem,
107 ir_node *op1, ir_node *op2, ir_node *flags);
109 typedef ir_node *construct_shift_func(dbg_info *db, ir_graph *irg,
110 ir_node *block, ir_node *op1, ir_node *op2);
112 typedef ir_node *construct_binop_dest_func(dbg_info *db, ir_graph *irg,
113 ir_node *block, ir_node *base, ir_node *index, ir_node *mem,
116 typedef ir_node *construct_unop_dest_func(dbg_info *db, ir_graph *irg,
117 ir_node *block, ir_node *base, ir_node *index, ir_node *mem);
119 typedef ir_node *construct_binop_float_func(dbg_info *db, ir_graph *irg,
120 ir_node *block, ir_node *base, ir_node *index, ir_node *mem,
121 ir_node *op1, ir_node *op2, ir_node *fpcw);
123 typedef ir_node *construct_unop_func(dbg_info *db, ir_graph *irg,
124 ir_node *block, ir_node *op);
126 static ir_node *create_immediate_or_transform(ir_node *node,
127 char immediate_constraint_type);
129 static ir_node *create_I2I_Conv(ir_mode *src_mode, ir_mode *tgt_mode,
130 dbg_info *dbgi, ir_node *block,
131 ir_node *op, ir_node *orig_node);
133 /** Return non-zero is a node represents the 0 constant. */
134 static int is_Const_0(ir_node *node) {
135 return is_Const(node) && is_Const_null(node);
138 /** Return non-zero is a node represents the 1 constant. */
139 static int is_Const_1(ir_node *node) {
140 return is_Const(node) && is_Const_one(node);
143 /** Return non-zero is a node represents the -1 constant. */
144 static int is_Const_Minus_1(ir_node *node) {
145 return is_Const(node) && is_Const_all_one(node);
149 * returns true if constant can be created with a simple float command
151 static int is_simple_x87_Const(ir_node *node)
153 tarval *tv = get_Const_tarval(node);
154 if (tarval_is_null(tv) || tarval_is_one(tv))
157 /* TODO: match all the other float constants */
162 * returns true if constant can be created with a simple float command
164 static int is_simple_sse_Const(ir_node *node)
166 tarval *tv = get_Const_tarval(node);
167 ir_mode *mode = get_tarval_mode(tv);
172 if (tarval_is_null(tv) || tarval_is_one(tv))
175 if (mode == mode_D) {
176 unsigned val = get_tarval_sub_bits(tv, 0) |
177 (get_tarval_sub_bits(tv, 1) << 8) |
178 (get_tarval_sub_bits(tv, 2) << 16) |
179 (get_tarval_sub_bits(tv, 3) << 24);
181 /* lower 32bit are zero, really a 32bit constant */
185 /* TODO: match all the other float constants */
190 * Transforms a Const.
192 static ir_node *gen_Const(ir_node *node) {
193 ir_graph *irg = current_ir_graph;
194 ir_node *old_block = get_nodes_block(node);
195 ir_node *block = be_transform_node(old_block);
196 dbg_info *dbgi = get_irn_dbg_info(node);
197 ir_mode *mode = get_irn_mode(node);
199 assert(is_Const(node));
201 if (mode_is_float(mode)) {
203 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
204 ir_node *nomem = new_NoMem();
208 if (ia32_cg_config.use_sse2) {
209 tarval *tv = get_Const_tarval(node);
210 if (tarval_is_null(tv)) {
211 load = new_rd_ia32_xZero(dbgi, irg, block);
212 set_ia32_ls_mode(load, mode);
214 } else if (tarval_is_one(tv)) {
215 int cnst = mode == mode_F ? 26 : 55;
216 ir_node *imm1 = create_Immediate(NULL, 0, cnst);
217 ir_node *imm2 = create_Immediate(NULL, 0, 2);
218 ir_node *pslld, *psrld;
220 load = new_rd_ia32_xAllOnes(dbgi, irg, block);
221 set_ia32_ls_mode(load, mode);
222 pslld = new_rd_ia32_xPslld(dbgi, irg, block, load, imm1);
223 set_ia32_ls_mode(pslld, mode);
224 psrld = new_rd_ia32_xPsrld(dbgi, irg, block, pslld, imm2);
225 set_ia32_ls_mode(psrld, mode);
227 } else if (mode == mode_F) {
228 /* we can place any 32bit constant by using a movd gp, sse */
229 unsigned val = get_tarval_sub_bits(tv, 0) |
230 (get_tarval_sub_bits(tv, 1) << 8) |
231 (get_tarval_sub_bits(tv, 2) << 16) |
232 (get_tarval_sub_bits(tv, 3) << 24);
233 ir_node *cnst = new_rd_ia32_Const(dbgi, irg, block, NULL, 0, val);
234 load = new_rd_ia32_xMovd(dbgi, irg, block, cnst);
235 set_ia32_ls_mode(load, mode);
238 if (mode == mode_D) {
239 unsigned val = get_tarval_sub_bits(tv, 0) |
240 (get_tarval_sub_bits(tv, 1) << 8) |
241 (get_tarval_sub_bits(tv, 2) << 16) |
242 (get_tarval_sub_bits(tv, 3) << 24);
244 ir_node *imm32 = create_Immediate(NULL, 0, 32);
245 ir_node *cnst, *psllq;
247 /* fine, lower 32bit are zero, produce 32bit value */
248 val = get_tarval_sub_bits(tv, 4) |
249 (get_tarval_sub_bits(tv, 5) << 8) |
250 (get_tarval_sub_bits(tv, 6) << 16) |
251 (get_tarval_sub_bits(tv, 7) << 24);
252 cnst = new_rd_ia32_Const(dbgi, irg, block, NULL, 0, val);
253 load = new_rd_ia32_xMovd(dbgi, irg, block, cnst);
254 set_ia32_ls_mode(load, mode);
255 psllq = new_rd_ia32_xPsllq(dbgi, irg, block, load, imm32);
256 set_ia32_ls_mode(psllq, mode);
261 floatent = create_float_const_entity(node);
263 load = new_rd_ia32_xLoad(dbgi, irg, block, noreg, noreg, nomem,
265 set_ia32_op_type(load, ia32_AddrModeS);
266 set_ia32_am_sc(load, floatent);
267 set_ia32_flags(load, get_ia32_flags(load) | arch_irn_flags_rematerializable);
268 res = new_r_Proj(irg, block, load, mode_xmm, pn_ia32_xLoad_res);
271 if (is_Const_null(node)) {
272 load = new_rd_ia32_vfldz(dbgi, irg, block);
274 set_ia32_ls_mode(load, mode);
275 } else if (is_Const_one(node)) {
276 load = new_rd_ia32_vfld1(dbgi, irg, block);
278 set_ia32_ls_mode(load, mode);
280 floatent = create_float_const_entity(node);
282 load = new_rd_ia32_vfld(dbgi, irg, block, noreg, noreg, nomem, mode);
283 set_ia32_op_type(load, ia32_AddrModeS);
284 set_ia32_am_sc(load, floatent);
285 set_ia32_flags(load, get_ia32_flags(load) | arch_irn_flags_rematerializable);
286 res = new_r_Proj(irg, block, load, mode_vfp, pn_ia32_vfld_res);
287 /* take the mode from the entity */
288 set_ia32_ls_mode(load, get_type_mode(get_entity_type(floatent)));
292 /* Const Nodes before the initial IncSP are a bad idea, because
293 * they could be spilled and we have no SP ready at that point yet.
294 * So add a dependency to the initial frame pointer calculation to
295 * avoid that situation.
297 if (get_irg_start_block(irg) == block) {
298 add_irn_dep(load, get_irg_frame(irg));
301 SET_IA32_ORIG_NODE(load, ia32_get_old_node_name(env_cg, node));
303 } else { /* non-float mode */
305 tarval *tv = get_Const_tarval(node);
308 tv = tarval_convert_to(tv, mode_Iu);
310 if (tv == get_tarval_bad() || tv == get_tarval_undefined() ||
312 panic("couldn't convert constant tarval (%+F)", node);
314 val = get_tarval_long(tv);
316 cnst = new_rd_ia32_Const(dbgi, irg, block, NULL, 0, val);
317 SET_IA32_ORIG_NODE(cnst, ia32_get_old_node_name(env_cg, node));
320 if (get_irg_start_block(irg) == block) {
321 add_irn_dep(cnst, get_irg_frame(irg));
329 * Transforms a SymConst.
331 static ir_node *gen_SymConst(ir_node *node) {
332 ir_graph *irg = current_ir_graph;
333 ir_node *old_block = get_nodes_block(node);
334 ir_node *block = be_transform_node(old_block);
335 dbg_info *dbgi = get_irn_dbg_info(node);
336 ir_mode *mode = get_irn_mode(node);
339 if (mode_is_float(mode)) {
340 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
341 ir_node *nomem = new_NoMem();
343 if (ia32_cg_config.use_sse2)
344 cnst = new_rd_ia32_xLoad(dbgi, irg, block, noreg, noreg, nomem, mode_E);
346 cnst = new_rd_ia32_vfld(dbgi, irg, block, noreg, noreg, nomem, mode_E);
347 set_ia32_am_sc(cnst, get_SymConst_entity(node));
348 set_ia32_use_frame(cnst);
352 if(get_SymConst_kind(node) != symconst_addr_ent) {
353 panic("backend only support symconst_addr_ent (at %+F)", node);
355 entity = get_SymConst_entity(node);
356 cnst = new_rd_ia32_Const(dbgi, irg, block, entity, 0, 0);
359 /* Const Nodes before the initial IncSP are a bad idea, because
360 * they could be spilled and we have no SP ready at that point yet
362 if (get_irg_start_block(irg) == block) {
363 add_irn_dep(cnst, get_irg_frame(irg));
366 SET_IA32_ORIG_NODE(cnst, ia32_get_old_node_name(env_cg, node));
371 /* Generates an entity for a known FP const (used for FP Neg + Abs) */
372 ir_entity *ia32_gen_fp_known_const(ia32_known_const_t kct) {
373 static const struct {
375 const char *ent_name;
376 const char *cnst_str;
379 } names [ia32_known_const_max] = {
380 { TP_SFP_SIGN, ENT_SFP_SIGN, SFP_SIGN, 0, 16 }, /* ia32_SSIGN */
381 { TP_DFP_SIGN, ENT_DFP_SIGN, DFP_SIGN, 1, 16 }, /* ia32_DSIGN */
382 { TP_SFP_ABS, ENT_SFP_ABS, SFP_ABS, 0, 16 }, /* ia32_SABS */
383 { TP_DFP_ABS, ENT_DFP_ABS, DFP_ABS, 1, 16 }, /* ia32_DABS */
384 { TP_INT_MAX, ENT_INT_MAX, DFP_INTMAX, 2, 4 } /* ia32_INTMAX */
386 static ir_entity *ent_cache[ia32_known_const_max];
388 const char *tp_name, *ent_name, *cnst_str;
396 ent_name = names[kct].ent_name;
397 if (! ent_cache[kct]) {
398 tp_name = names[kct].tp_name;
399 cnst_str = names[kct].cnst_str;
401 switch (names[kct].mode) {
402 case 0: mode = mode_Iu; break;
403 case 1: mode = mode_Lu; break;
404 default: mode = mode_F; break;
406 tv = new_tarval_from_str(cnst_str, strlen(cnst_str), mode);
407 tp = new_type_primitive(new_id_from_str(tp_name), mode);
408 /* set the specified alignment */
409 set_type_alignment_bytes(tp, names[kct].align);
411 ent = new_entity(get_glob_type(), new_id_from_str(ent_name), tp);
413 set_entity_ld_ident(ent, get_entity_ident(ent));
414 set_entity_visibility(ent, visibility_local);
415 set_entity_variability(ent, variability_constant);
416 set_entity_allocation(ent, allocation_static);
418 /* we create a new entity here: It's initialization must resist on the
420 rem = current_ir_graph;
421 current_ir_graph = get_const_code_irg();
422 cnst = new_Const(mode, tv);
423 current_ir_graph = rem;
425 set_atomic_ent_value(ent, cnst);
427 /* cache the entry */
428 ent_cache[kct] = ent;
431 return ent_cache[kct];
434 static int prevents_AM(ir_node *const block, ir_node *const am_candidate,
435 ir_node *const other)
437 if (get_nodes_block(other) != block)
440 if (is_Sync(other)) {
443 for (i = get_Sync_n_preds(other) - 1; i >= 0; --i) {
444 ir_node *const pred = get_Sync_pred(other, i);
446 if (get_nodes_block(pred) != block)
449 /* Do not block ourselves from getting eaten */
450 if (is_Proj(pred) && get_Proj_pred(pred) == am_candidate)
453 if (!heights_reachable_in_block(heights, pred, am_candidate))
461 /* Do not block ourselves from getting eaten */
462 if (is_Proj(other) && get_Proj_pred(other) == am_candidate)
465 if (!heights_reachable_in_block(heights, other, am_candidate))
473 * return true if the node is a Proj(Load) and could be used in source address
474 * mode for another node. Will return only true if the @p other node is not
475 * dependent on the memory of the Load (for binary operations use the other
476 * input here, for unary operations use NULL).
478 static int ia32_use_source_address_mode(ir_node *block, ir_node *node,
479 ir_node *other, ir_node *other2, match_flags_t flags)
484 /* float constants are always available */
485 if (is_Const(node)) {
486 ir_mode *mode = get_irn_mode(node);
487 if (mode_is_float(mode)) {
488 if (ia32_cg_config.use_sse2) {
489 if (is_simple_sse_Const(node))
492 if (is_simple_x87_Const(node))
495 if (get_irn_n_edges(node) > 1)
503 load = get_Proj_pred(node);
504 pn = get_Proj_proj(node);
505 if (!is_Load(load) || pn != pn_Load_res)
507 if (get_nodes_block(load) != block)
509 /* we only use address mode if we're the only user of the load */
510 if (get_irn_n_edges(node) != (flags & match_two_users ? 2 : 1))
512 /* in some edge cases with address mode we might reach the load normally
513 * and through some AM sequence, if it is already materialized then we
514 * can't create an AM node from it */
515 if (be_is_transformed(node))
518 /* don't do AM if other node inputs depend on the load (via mem-proj) */
519 if (other != NULL && prevents_AM(block, load, other))
522 if (other2 != NULL && prevents_AM(block, load, other2))
528 typedef struct ia32_address_mode_t ia32_address_mode_t;
529 struct ia32_address_mode_t {
533 ia32_op_type_t op_type;
537 unsigned commutative : 1;
538 unsigned ins_permuted : 1;
541 static void build_address_ptr(ia32_address_t *addr, ir_node *ptr, ir_node *mem)
545 /* construct load address */
546 memset(addr, 0, sizeof(addr[0]));
547 ia32_create_address_mode(addr, ptr, /*force=*/0);
549 noreg_gp = ia32_new_NoReg_gp(env_cg);
550 addr->base = addr->base ? be_transform_node(addr->base) : noreg_gp;
551 addr->index = addr->index ? be_transform_node(addr->index) : noreg_gp;
552 addr->mem = be_transform_node(mem);
555 static void build_address(ia32_address_mode_t *am, ir_node *node)
557 ir_node *noreg_gp = ia32_new_NoReg_gp(env_cg);
558 ia32_address_t *addr = &am->addr;
564 if (is_Const(node)) {
565 ir_entity *entity = create_float_const_entity(node);
566 addr->base = noreg_gp;
567 addr->index = noreg_gp;
568 addr->mem = new_NoMem();
569 addr->symconst_ent = entity;
571 am->ls_mode = get_type_mode(get_entity_type(entity));
572 am->pinned = op_pin_state_floats;
576 load = get_Proj_pred(node);
577 ptr = get_Load_ptr(load);
578 mem = get_Load_mem(load);
579 new_mem = be_transform_node(mem);
580 am->pinned = get_irn_pinned(load);
581 am->ls_mode = get_Load_mode(load);
582 am->mem_proj = be_get_Proj_for_pn(load, pn_Load_M);
584 /* construct load address */
585 ia32_create_address_mode(addr, ptr, /*force=*/0);
587 addr->base = addr->base ? be_transform_node(addr->base) : noreg_gp;
588 addr->index = addr->index ? be_transform_node(addr->index) : noreg_gp;
592 static void set_address(ir_node *node, const ia32_address_t *addr)
594 set_ia32_am_scale(node, addr->scale);
595 set_ia32_am_sc(node, addr->symconst_ent);
596 set_ia32_am_offs_int(node, addr->offset);
597 if(addr->symconst_sign)
598 set_ia32_am_sc_sign(node);
600 set_ia32_use_frame(node);
601 set_ia32_frame_ent(node, addr->frame_entity);
605 * Apply attributes of a given address mode to a node.
607 static void set_am_attributes(ir_node *node, const ia32_address_mode_t *am)
609 set_address(node, &am->addr);
611 set_ia32_op_type(node, am->op_type);
612 set_ia32_ls_mode(node, am->ls_mode);
613 if (am->pinned == op_pin_state_pinned) {
614 /* beware: some nodes are already pinned and did not allow to change the state */
615 if (get_irn_pinned(node) != op_pin_state_pinned)
616 set_irn_pinned(node, op_pin_state_pinned);
619 set_ia32_commutative(node);
623 * Check, if a given node is a Down-Conv, ie. a integer Conv
624 * from a mode with a mode with more bits to a mode with lesser bits.
625 * Moreover, we return only true if the node has not more than 1 user.
627 * @param node the node
628 * @return non-zero if node is a Down-Conv
630 static int is_downconv(const ir_node *node)
638 /* we only want to skip the conv when we're the only user
639 * (not optimal but for now...)
641 if(get_irn_n_edges(node) > 1)
644 src_mode = get_irn_mode(get_Conv_op(node));
645 dest_mode = get_irn_mode(node);
646 return ia32_mode_needs_gp_reg(src_mode)
647 && ia32_mode_needs_gp_reg(dest_mode)
648 && get_mode_size_bits(dest_mode) < get_mode_size_bits(src_mode);
651 /* Skip all Down-Conv's on a given node and return the resulting node. */
652 ir_node *ia32_skip_downconv(ir_node *node) {
653 while (is_downconv(node))
654 node = get_Conv_op(node);
659 static ir_node *create_upconv(ir_node *node, ir_node *orig_node)
661 ir_mode *mode = get_irn_mode(node);
666 if(mode_is_signed(mode)) {
671 block = get_nodes_block(node);
672 dbgi = get_irn_dbg_info(node);
674 return create_I2I_Conv(mode, tgt_mode, dbgi, block, node, orig_node);
678 * matches operands of a node into ia32 addressing/operand modes. This covers
679 * usage of source address mode, immediates, operations with non 32-bit modes,
681 * The resulting data is filled into the @p am struct. block is the block
682 * of the node whose arguments are matched. op1, op2 are the first and second
683 * input that are matched (op1 may be NULL). other_op is another unrelated
684 * input that is not matched! but which is needed sometimes to check if AM
685 * for op1/op2 is legal.
686 * @p flags describes the supported modes of the operation in detail.
688 static void match_arguments(ia32_address_mode_t *am, ir_node *block,
689 ir_node *op1, ir_node *op2, ir_node *other_op,
692 ia32_address_t *addr = &am->addr;
693 ir_mode *mode = get_irn_mode(op2);
694 int mode_bits = get_mode_size_bits(mode);
695 ir_node *noreg_gp, *new_op1, *new_op2;
697 unsigned commutative;
698 int use_am_and_immediates;
701 memset(am, 0, sizeof(am[0]));
703 commutative = (flags & match_commutative) != 0;
704 use_am_and_immediates = (flags & match_am_and_immediates) != 0;
705 use_am = (flags & match_am) != 0;
706 use_immediate = (flags & match_immediate) != 0;
707 assert(!use_am_and_immediates || use_immediate);
710 assert(!commutative || op1 != NULL);
711 assert(use_am || !(flags & match_8bit_am));
712 assert(use_am || !(flags & match_16bit_am));
714 if (mode_bits == 8) {
715 if (!(flags & match_8bit_am))
717 /* we don't automatically add upconvs yet */
718 assert((flags & match_mode_neutral) || (flags & match_8bit));
719 } else if (mode_bits == 16) {
720 if (!(flags & match_16bit_am))
722 /* we don't automatically add upconvs yet */
723 assert((flags & match_mode_neutral) || (flags & match_16bit));
726 /* we can simply skip downconvs for mode neutral nodes: the upper bits
727 * can be random for these operations */
728 if (flags & match_mode_neutral) {
729 op2 = ia32_skip_downconv(op2);
731 op1 = ia32_skip_downconv(op1);
735 /* match immediates. firm nodes are normalized: constants are always on the
738 if (!(flags & match_try_am) && use_immediate) {
739 new_op2 = try_create_Immediate(op2, 0);
742 noreg_gp = ia32_new_NoReg_gp(env_cg);
743 if (new_op2 == NULL &&
744 use_am && ia32_use_source_address_mode(block, op2, op1, other_op, flags)) {
745 build_address(am, op2);
746 new_op1 = (op1 == NULL ? NULL : be_transform_node(op1));
747 if (mode_is_float(mode)) {
748 new_op2 = ia32_new_NoReg_vfp(env_cg);
752 am->op_type = ia32_AddrModeS;
753 } else if (commutative && (new_op2 == NULL || use_am_and_immediates) &&
755 ia32_use_source_address_mode(block, op1, op2, other_op, flags)) {
757 build_address(am, op1);
759 if (mode_is_float(mode)) {
760 noreg = ia32_new_NoReg_vfp(env_cg);
765 if (new_op2 != NULL) {
768 new_op1 = be_transform_node(op2);
770 am->ins_permuted = 1;
772 am->op_type = ia32_AddrModeS;
774 if (flags & match_try_am) {
777 am->op_type = ia32_Normal;
781 new_op1 = (op1 == NULL ? NULL : be_transform_node(op1));
783 new_op2 = be_transform_node(op2);
784 am->op_type = ia32_Normal;
785 am->ls_mode = get_irn_mode(op2);
786 if (flags & match_mode_neutral)
787 am->ls_mode = mode_Iu;
789 if (addr->base == NULL)
790 addr->base = noreg_gp;
791 if (addr->index == NULL)
792 addr->index = noreg_gp;
793 if (addr->mem == NULL)
794 addr->mem = new_NoMem();
796 am->new_op1 = new_op1;
797 am->new_op2 = new_op2;
798 am->commutative = commutative;
801 static ir_node *fix_mem_proj(ir_node *node, ia32_address_mode_t *am)
806 if (am->mem_proj == NULL)
809 /* we have to create a mode_T so the old MemProj can attach to us */
810 mode = get_irn_mode(node);
811 load = get_Proj_pred(am->mem_proj);
813 mark_irn_visited(load);
814 be_set_transformed_node(load, node);
816 if (mode != mode_T) {
817 set_irn_mode(node, mode_T);
818 return new_rd_Proj(NULL, current_ir_graph, get_nodes_block(node), node, mode, pn_ia32_res);
825 * Construct a standard binary operation, set AM and immediate if required.
827 * @param node The original node for which the binop is created
828 * @param op1 The first operand
829 * @param op2 The second operand
830 * @param func The node constructor function
831 * @return The constructed ia32 node.
833 static ir_node *gen_binop(ir_node *node, ir_node *op1, ir_node *op2,
834 construct_binop_func *func, match_flags_t flags)
837 ir_node *block, *new_block, *new_node;
838 ia32_address_mode_t am;
839 ia32_address_t *addr = &am.addr;
841 block = get_nodes_block(node);
842 match_arguments(&am, block, op1, op2, NULL, flags);
844 dbgi = get_irn_dbg_info(node);
845 new_block = be_transform_node(block);
846 new_node = func(dbgi, current_ir_graph, new_block,
847 addr->base, addr->index, addr->mem,
848 am.new_op1, am.new_op2);
849 set_am_attributes(new_node, &am);
850 /* we can't use source address mode anymore when using immediates */
851 if (is_ia32_Immediate(am.new_op1) || is_ia32_Immediate(am.new_op2))
852 set_ia32_am_support(new_node, ia32_am_None, ia32_am_arity_none);
853 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
855 new_node = fix_mem_proj(new_node, &am);
862 n_ia32_l_binop_right,
863 n_ia32_l_binop_eflags
865 COMPILETIME_ASSERT(n_ia32_l_binop_left == n_ia32_l_Adc_left, n_Adc_left)
866 COMPILETIME_ASSERT(n_ia32_l_binop_right == n_ia32_l_Adc_right, n_Adc_right)
867 COMPILETIME_ASSERT(n_ia32_l_binop_eflags == n_ia32_l_Adc_eflags, n_Adc_eflags)
868 COMPILETIME_ASSERT(n_ia32_l_binop_left == n_ia32_l_Sbb_minuend, n_Sbb_minuend)
869 COMPILETIME_ASSERT(n_ia32_l_binop_right == n_ia32_l_Sbb_subtrahend, n_Sbb_subtrahend)
870 COMPILETIME_ASSERT(n_ia32_l_binop_eflags == n_ia32_l_Sbb_eflags, n_Sbb_eflags)
873 * Construct a binary operation which also consumes the eflags.
875 * @param node The node to transform
876 * @param func The node constructor function
877 * @param flags The match flags
878 * @return The constructor ia32 node
880 static ir_node *gen_binop_flags(ir_node *node, construct_binop_flags_func *func,
883 ir_node *src_block = get_nodes_block(node);
884 ir_node *op1 = get_irn_n(node, n_ia32_l_binop_left);
885 ir_node *op2 = get_irn_n(node, n_ia32_l_binop_right);
887 ir_node *block, *new_node, *eflags, *new_eflags;
888 ia32_address_mode_t am;
889 ia32_address_t *addr = &am.addr;
891 match_arguments(&am, src_block, op1, op2, NULL, flags);
893 dbgi = get_irn_dbg_info(node);
894 block = be_transform_node(src_block);
895 eflags = get_irn_n(node, n_ia32_l_binop_eflags);
896 new_eflags = be_transform_node(eflags);
897 new_node = func(dbgi, current_ir_graph, block, addr->base, addr->index,
898 addr->mem, am.new_op1, am.new_op2, new_eflags);
899 set_am_attributes(new_node, &am);
900 /* we can't use source address mode anymore when using immediates */
901 if(is_ia32_Immediate(am.new_op1) || is_ia32_Immediate(am.new_op2))
902 set_ia32_am_support(new_node, ia32_am_None, ia32_am_arity_none);
903 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
905 new_node = fix_mem_proj(new_node, &am);
910 static ir_node *get_fpcw(void)
913 if (initial_fpcw != NULL)
916 fpcw = be_abi_get_ignore_irn(env_cg->birg->abi,
917 &ia32_fp_cw_regs[REG_FPCW]);
918 initial_fpcw = be_transform_node(fpcw);
924 * Construct a standard binary operation, set AM and immediate if required.
926 * @param op1 The first operand
927 * @param op2 The second operand
928 * @param func The node constructor function
929 * @return The constructed ia32 node.
931 static ir_node *gen_binop_x87_float(ir_node *node, ir_node *op1, ir_node *op2,
932 construct_binop_float_func *func,
935 ir_mode *mode = get_irn_mode(node);
937 ir_node *block, *new_block, *new_node;
938 ia32_address_mode_t am;
939 ia32_address_t *addr = &am.addr;
941 /* cannot use address mode with long double on x87 */
942 if (get_mode_size_bits(mode) > 64)
945 block = get_nodes_block(node);
946 match_arguments(&am, block, op1, op2, NULL, flags);
948 dbgi = get_irn_dbg_info(node);
949 new_block = be_transform_node(block);
950 new_node = func(dbgi, current_ir_graph, new_block,
951 addr->base, addr->index, addr->mem,
952 am.new_op1, am.new_op2, get_fpcw());
953 set_am_attributes(new_node, &am);
955 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
957 new_node = fix_mem_proj(new_node, &am);
963 * Construct a shift/rotate binary operation, sets AM and immediate if required.
965 * @param op1 The first operand
966 * @param op2 The second operand
967 * @param func The node constructor function
968 * @return The constructed ia32 node.
970 static ir_node *gen_shift_binop(ir_node *node, ir_node *op1, ir_node *op2,
971 construct_shift_func *func,
975 ir_node *block, *new_block, *new_op1, *new_op2, *new_node;
977 assert(! mode_is_float(get_irn_mode(node)));
978 assert(flags & match_immediate);
979 assert((flags & ~(match_mode_neutral | match_immediate)) == 0);
981 if (flags & match_mode_neutral) {
982 op1 = ia32_skip_downconv(op1);
983 new_op1 = be_transform_node(op1);
984 } else if (get_mode_size_bits(get_irn_mode(node)) != 32) {
985 new_op1 = create_upconv(op1, node);
987 new_op1 = be_transform_node(op1);
990 /* the shift amount can be any mode that is bigger than 5 bits, since all
991 * other bits are ignored anyway */
992 while (is_Conv(op2) && get_irn_n_edges(op2) == 1) {
993 ir_node *const op = get_Conv_op(op2);
994 if (mode_is_float(get_irn_mode(op)))
997 assert(get_mode_size_bits(get_irn_mode(op2)) >= 5);
999 new_op2 = create_immediate_or_transform(op2, 0);
1001 dbgi = get_irn_dbg_info(node);
1002 block = get_nodes_block(node);
1003 new_block = be_transform_node(block);
1004 new_node = func(dbgi, current_ir_graph, new_block, new_op1, new_op2);
1005 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
1007 /* lowered shift instruction may have a dependency operand, handle it here */
1008 if (get_irn_arity(node) == 3) {
1009 /* we have a dependency */
1010 ir_node *new_dep = be_transform_node(get_irn_n(node, 2));
1011 add_irn_dep(new_node, new_dep);
1019 * Construct a standard unary operation, set AM and immediate if required.
1021 * @param op The operand
1022 * @param func The node constructor function
1023 * @return The constructed ia32 node.
1025 static ir_node *gen_unop(ir_node *node, ir_node *op, construct_unop_func *func,
1026 match_flags_t flags)
1029 ir_node *block, *new_block, *new_op, *new_node;
1031 assert(flags == 0 || flags == match_mode_neutral);
1032 if (flags & match_mode_neutral) {
1033 op = ia32_skip_downconv(op);
1036 new_op = be_transform_node(op);
1037 dbgi = get_irn_dbg_info(node);
1038 block = get_nodes_block(node);
1039 new_block = be_transform_node(block);
1040 new_node = func(dbgi, current_ir_graph, new_block, new_op);
1042 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
1047 static ir_node *create_lea_from_address(dbg_info *dbgi, ir_node *block,
1048 ia32_address_t *addr)
1050 ir_node *base, *index, *res;
1054 base = ia32_new_NoReg_gp(env_cg);
1056 base = be_transform_node(base);
1059 index = addr->index;
1060 if (index == NULL) {
1061 index = ia32_new_NoReg_gp(env_cg);
1063 index = be_transform_node(index);
1066 res = new_rd_ia32_Lea(dbgi, current_ir_graph, block, base, index);
1067 set_address(res, addr);
1073 * Returns non-zero if a given address mode has a symbolic or
1074 * numerical offset != 0.
1076 static int am_has_immediates(const ia32_address_t *addr)
1078 return addr->offset != 0 || addr->symconst_ent != NULL
1079 || addr->frame_entity || addr->use_frame;
1083 * Creates an ia32 Add.
1085 * @return the created ia32 Add node
1087 static ir_node *gen_Add(ir_node *node) {
1088 ir_mode *mode = get_irn_mode(node);
1089 ir_node *op1 = get_Add_left(node);
1090 ir_node *op2 = get_Add_right(node);
1092 ir_node *block, *new_block, *new_node, *add_immediate_op;
1093 ia32_address_t addr;
1094 ia32_address_mode_t am;
1096 if (mode_is_float(mode)) {
1097 if (ia32_cg_config.use_sse2)
1098 return gen_binop(node, op1, op2, new_rd_ia32_xAdd,
1099 match_commutative | match_am);
1101 return gen_binop_x87_float(node, op1, op2, new_rd_ia32_vfadd,
1102 match_commutative | match_am);
1105 ia32_mark_non_am(node);
1107 op2 = ia32_skip_downconv(op2);
1108 op1 = ia32_skip_downconv(op1);
1112 * 0. Immediate Trees (example Add(Symconst, Const) -> Const)
1113 * 1. Add with immediate -> Lea
1114 * 2. Add with possible source address mode -> Add
1115 * 3. Otherwise -> Lea
1117 memset(&addr, 0, sizeof(addr));
1118 ia32_create_address_mode(&addr, node, /*force=*/1);
1119 add_immediate_op = NULL;
1121 dbgi = get_irn_dbg_info(node);
1122 block = get_nodes_block(node);
1123 new_block = be_transform_node(block);
1126 if(addr.base == NULL && addr.index == NULL) {
1127 ir_graph *irg = current_ir_graph;
1128 new_node = new_rd_ia32_Const(dbgi, irg, new_block, addr.symconst_ent,
1129 addr.symconst_sign, addr.offset);
1130 add_irn_dep(new_node, get_irg_frame(irg));
1131 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
1134 /* add with immediate? */
1135 if(addr.index == NULL) {
1136 add_immediate_op = addr.base;
1137 } else if(addr.base == NULL && addr.scale == 0) {
1138 add_immediate_op = addr.index;
1141 if(add_immediate_op != NULL) {
1142 if(!am_has_immediates(&addr)) {
1143 #ifdef DEBUG_libfirm
1144 ir_fprintf(stderr, "Optimisation warning Add x,0 (%+F) found\n",
1147 return be_transform_node(add_immediate_op);
1150 new_node = create_lea_from_address(dbgi, new_block, &addr);
1151 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
1155 /* test if we can use source address mode */
1156 match_arguments(&am, block, op1, op2, NULL, match_commutative
1157 | match_mode_neutral | match_am | match_immediate | match_try_am);
1159 /* construct an Add with source address mode */
1160 if (am.op_type == ia32_AddrModeS) {
1161 ir_graph *irg = current_ir_graph;
1162 ia32_address_t *am_addr = &am.addr;
1163 new_node = new_rd_ia32_Add(dbgi, irg, new_block, am_addr->base,
1164 am_addr->index, am_addr->mem, am.new_op1,
1166 set_am_attributes(new_node, &am);
1167 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
1169 new_node = fix_mem_proj(new_node, &am);
1174 /* otherwise construct a lea */
1175 new_node = create_lea_from_address(dbgi, new_block, &addr);
1176 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
1181 * Creates an ia32 Mul.
1183 * @return the created ia32 Mul node
1185 static ir_node *gen_Mul(ir_node *node) {
1186 ir_node *op1 = get_Mul_left(node);
1187 ir_node *op2 = get_Mul_right(node);
1188 ir_mode *mode = get_irn_mode(node);
1190 if (mode_is_float(mode)) {
1191 if (ia32_cg_config.use_sse2)
1192 return gen_binop(node, op1, op2, new_rd_ia32_xMul,
1193 match_commutative | match_am);
1195 return gen_binop_x87_float(node, op1, op2, new_rd_ia32_vfmul,
1196 match_commutative | match_am);
1198 return gen_binop(node, op1, op2, new_rd_ia32_IMul,
1199 match_commutative | match_am | match_mode_neutral |
1200 match_immediate | match_am_and_immediates);
1204 * Creates an ia32 Mulh.
1205 * Note: Mul produces a 64Bit result and Mulh returns the upper 32 bit of
1206 * this result while Mul returns the lower 32 bit.
1208 * @return the created ia32 Mulh node
1210 static ir_node *gen_Mulh(ir_node *node)
1212 ir_node *block = get_nodes_block(node);
1213 ir_node *new_block = be_transform_node(block);
1214 ir_graph *irg = current_ir_graph;
1215 dbg_info *dbgi = get_irn_dbg_info(node);
1216 ir_mode *mode = get_irn_mode(node);
1217 ir_node *op1 = get_Mulh_left(node);
1218 ir_node *op2 = get_Mulh_right(node);
1219 ir_node *proj_res_high;
1221 ia32_address_mode_t am;
1222 ia32_address_t *addr = &am.addr;
1224 assert(!mode_is_float(mode) && "Mulh with float not supported");
1225 assert(get_mode_size_bits(mode) == 32);
1227 match_arguments(&am, block, op1, op2, NULL, match_commutative | match_am);
1229 if (mode_is_signed(mode)) {
1230 new_node = new_rd_ia32_IMul1OP(dbgi, irg, new_block, addr->base,
1231 addr->index, addr->mem, am.new_op1,
1234 new_node = new_rd_ia32_Mul(dbgi, irg, new_block, addr->base,
1235 addr->index, addr->mem, am.new_op1,
1239 set_am_attributes(new_node, &am);
1240 /* we can't use source address mode anymore when using immediates */
1241 if(is_ia32_Immediate(am.new_op1) || is_ia32_Immediate(am.new_op2))
1242 set_ia32_am_support(new_node, ia32_am_None, ia32_am_arity_none);
1243 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
1245 assert(get_irn_mode(new_node) == mode_T);
1247 fix_mem_proj(new_node, &am);
1249 assert(pn_ia32_IMul1OP_res_high == pn_ia32_Mul_res_high);
1250 proj_res_high = new_rd_Proj(dbgi, irg, block, new_node,
1251 mode_Iu, pn_ia32_IMul1OP_res_high);
1253 return proj_res_high;
1259 * Creates an ia32 And.
1261 * @return The created ia32 And node
1263 static ir_node *gen_And(ir_node *node) {
1264 ir_node *op1 = get_And_left(node);
1265 ir_node *op2 = get_And_right(node);
1266 assert(! mode_is_float(get_irn_mode(node)));
1268 /* is it a zero extension? */
1269 if (is_Const(op2)) {
1270 tarval *tv = get_Const_tarval(op2);
1271 long v = get_tarval_long(tv);
1273 if (v == 0xFF || v == 0xFFFF) {
1274 dbg_info *dbgi = get_irn_dbg_info(node);
1275 ir_node *block = get_nodes_block(node);
1282 assert(v == 0xFFFF);
1285 res = create_I2I_Conv(src_mode, mode_Iu, dbgi, block, op1, node);
1290 return gen_binop(node, op1, op2, new_rd_ia32_And,
1291 match_commutative | match_mode_neutral | match_am
1298 * Creates an ia32 Or.
1300 * @return The created ia32 Or node
1302 static ir_node *gen_Or(ir_node *node) {
1303 ir_node *op1 = get_Or_left(node);
1304 ir_node *op2 = get_Or_right(node);
1306 assert (! mode_is_float(get_irn_mode(node)));
1307 return gen_binop(node, op1, op2, new_rd_ia32_Or, match_commutative
1308 | match_mode_neutral | match_am | match_immediate);
1314 * Creates an ia32 Eor.
1316 * @return The created ia32 Eor node
1318 static ir_node *gen_Eor(ir_node *node) {
1319 ir_node *op1 = get_Eor_left(node);
1320 ir_node *op2 = get_Eor_right(node);
1322 assert(! mode_is_float(get_irn_mode(node)));
1323 return gen_binop(node, op1, op2, new_rd_ia32_Xor, match_commutative
1324 | match_mode_neutral | match_am | match_immediate);
1329 * Creates an ia32 Sub.
1331 * @return The created ia32 Sub node
1333 static ir_node *gen_Sub(ir_node *node) {
1334 ir_node *op1 = get_Sub_left(node);
1335 ir_node *op2 = get_Sub_right(node);
1336 ir_mode *mode = get_irn_mode(node);
1338 if (mode_is_float(mode)) {
1339 if (ia32_cg_config.use_sse2)
1340 return gen_binop(node, op1, op2, new_rd_ia32_xSub, match_am);
1342 return gen_binop_x87_float(node, op1, op2, new_rd_ia32_vfsub,
1346 if (is_Const(op2)) {
1347 ir_fprintf(stderr, "Optimisation warning: found sub with const (%+F)\n",
1351 return gen_binop(node, op1, op2, new_rd_ia32_Sub, match_mode_neutral
1352 | match_am | match_immediate);
1355 static ir_node *transform_AM_mem(ir_graph *const irg, ir_node *const block,
1356 ir_node *const src_val,
1357 ir_node *const src_mem,
1358 ir_node *const am_mem)
1360 if (is_NoMem(am_mem)) {
1361 return be_transform_node(src_mem);
1362 } else if (is_Proj(src_val) &&
1364 get_Proj_pred(src_val) == get_Proj_pred(src_mem)) {
1365 /* avoid memory loop */
1367 } else if (is_Proj(src_val) && is_Sync(src_mem)) {
1368 ir_node *const ptr_pred = get_Proj_pred(src_val);
1369 int const arity = get_Sync_n_preds(src_mem);
1374 NEW_ARR_A(ir_node*, ins, arity + 1);
1376 for (i = arity - 1; i >= 0; --i) {
1377 ir_node *const pred = get_Sync_pred(src_mem, i);
1379 /* avoid memory loop */
1380 if (is_Proj(pred) && get_Proj_pred(pred) == ptr_pred)
1383 ins[n++] = be_transform_node(pred);
1388 return new_r_Sync(irg, block, n, ins);
1392 ins[0] = be_transform_node(src_mem);
1394 return new_r_Sync(irg, block, 2, ins);
1399 * Generates an ia32 DivMod with additional infrastructure for the
1400 * register allocator if needed.
1402 static ir_node *create_Div(ir_node *node)
1404 ir_graph *irg = current_ir_graph;
1405 dbg_info *dbgi = get_irn_dbg_info(node);
1406 ir_node *block = get_nodes_block(node);
1407 ir_node *new_block = be_transform_node(block);
1414 ir_node *sign_extension;
1415 ia32_address_mode_t am;
1416 ia32_address_t *addr = &am.addr;
1418 /* the upper bits have random contents for smaller modes */
1419 switch (get_irn_opcode(node)) {
1421 op1 = get_Div_left(node);
1422 op2 = get_Div_right(node);
1423 mem = get_Div_mem(node);
1424 mode = get_Div_resmode(node);
1427 op1 = get_Mod_left(node);
1428 op2 = get_Mod_right(node);
1429 mem = get_Mod_mem(node);
1430 mode = get_Mod_resmode(node);
1433 op1 = get_DivMod_left(node);
1434 op2 = get_DivMod_right(node);
1435 mem = get_DivMod_mem(node);
1436 mode = get_DivMod_resmode(node);
1439 panic("invalid divmod node %+F", node);
1442 match_arguments(&am, block, op1, op2, NULL, match_am);
1444 /* Beware: We don't need a Sync, if the memory predecessor of the Div node
1445 is the memory of the consumed address. We can have only the second op as address
1446 in Div nodes, so check only op2. */
1447 new_mem = transform_AM_mem(irg, block, op2, mem, addr->mem);
1449 if (mode_is_signed(mode)) {
1450 ir_node *produceval = new_rd_ia32_ProduceVal(dbgi, irg, new_block);
1451 add_irn_dep(produceval, get_irg_frame(irg));
1452 sign_extension = new_rd_ia32_Cltd(dbgi, irg, new_block, am.new_op1,
1455 new_node = new_rd_ia32_IDiv(dbgi, irg, new_block, addr->base,
1456 addr->index, new_mem, am.new_op2,
1457 am.new_op1, sign_extension);
1459 sign_extension = new_rd_ia32_Const(dbgi, irg, new_block, NULL, 0, 0);
1460 add_irn_dep(sign_extension, get_irg_frame(irg));
1462 new_node = new_rd_ia32_Div(dbgi, irg, new_block, addr->base,
1463 addr->index, new_mem, am.new_op2,
1464 am.new_op1, sign_extension);
1467 set_irn_pinned(new_node, get_irn_pinned(node));
1469 set_am_attributes(new_node, &am);
1470 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
1472 new_node = fix_mem_proj(new_node, &am);
1478 static ir_node *gen_Mod(ir_node *node) {
1479 return create_Div(node);
1482 static ir_node *gen_Div(ir_node *node) {
1483 return create_Div(node);
1486 static ir_node *gen_DivMod(ir_node *node) {
1487 return create_Div(node);
1493 * Creates an ia32 floating Div.
1495 * @return The created ia32 xDiv node
1497 static ir_node *gen_Quot(ir_node *node)
1499 ir_node *op1 = get_Quot_left(node);
1500 ir_node *op2 = get_Quot_right(node);
1502 if (ia32_cg_config.use_sse2) {
1503 return gen_binop(node, op1, op2, new_rd_ia32_xDiv, match_am);
1505 return gen_binop_x87_float(node, op1, op2, new_rd_ia32_vfdiv, match_am);
1511 * Creates an ia32 Shl.
1513 * @return The created ia32 Shl node
1515 static ir_node *gen_Shl(ir_node *node) {
1516 ir_node *left = get_Shl_left(node);
1517 ir_node *right = get_Shl_right(node);
1519 return gen_shift_binop(node, left, right, new_rd_ia32_Shl,
1520 match_mode_neutral | match_immediate);
1524 * Creates an ia32 Shr.
1526 * @return The created ia32 Shr node
1528 static ir_node *gen_Shr(ir_node *node) {
1529 ir_node *left = get_Shr_left(node);
1530 ir_node *right = get_Shr_right(node);
1532 return gen_shift_binop(node, left, right, new_rd_ia32_Shr, match_immediate);
1538 * Creates an ia32 Sar.
1540 * @return The created ia32 Shrs node
1542 static ir_node *gen_Shrs(ir_node *node) {
1543 ir_node *left = get_Shrs_left(node);
1544 ir_node *right = get_Shrs_right(node);
1545 ir_mode *mode = get_irn_mode(node);
1547 if(is_Const(right) && mode == mode_Is) {
1548 tarval *tv = get_Const_tarval(right);
1549 long val = get_tarval_long(tv);
1551 /* this is a sign extension */
1552 ir_graph *irg = current_ir_graph;
1553 dbg_info *dbgi = get_irn_dbg_info(node);
1554 ir_node *block = be_transform_node(get_nodes_block(node));
1556 ir_node *new_op = be_transform_node(op);
1557 ir_node *pval = new_rd_ia32_ProduceVal(dbgi, irg, block);
1558 add_irn_dep(pval, get_irg_frame(irg));
1560 return new_rd_ia32_Cltd(dbgi, irg, block, new_op, pval);
1564 /* 8 or 16 bit sign extension? */
1565 if(is_Const(right) && is_Shl(left) && mode == mode_Is) {
1566 ir_node *shl_left = get_Shl_left(left);
1567 ir_node *shl_right = get_Shl_right(left);
1568 if(is_Const(shl_right)) {
1569 tarval *tv1 = get_Const_tarval(right);
1570 tarval *tv2 = get_Const_tarval(shl_right);
1571 if(tv1 == tv2 && tarval_is_long(tv1)) {
1572 long val = get_tarval_long(tv1);
1573 if(val == 16 || val == 24) {
1574 dbg_info *dbgi = get_irn_dbg_info(node);
1575 ir_node *block = get_nodes_block(node);
1585 res = create_I2I_Conv(src_mode, mode_Is, dbgi, block,
1594 return gen_shift_binop(node, left, right, new_rd_ia32_Sar, match_immediate);
1600 * Creates an ia32 Rol.
1602 * @param op1 The first operator
1603 * @param op2 The second operator
1604 * @return The created ia32 RotL node
1606 static ir_node *gen_Rol(ir_node *node, ir_node *op1, ir_node *op2) {
1607 return gen_shift_binop(node, op1, op2, new_rd_ia32_Rol, match_immediate);
1613 * Creates an ia32 Ror.
1614 * NOTE: There is no RotR with immediate because this would always be a RotL
1615 * "imm-mode_size_bits" which can be pre-calculated.
1617 * @param op1 The first operator
1618 * @param op2 The second operator
1619 * @return The created ia32 RotR node
1621 static ir_node *gen_Ror(ir_node *node, ir_node *op1, ir_node *op2) {
1622 return gen_shift_binop(node, op1, op2, new_rd_ia32_Ror, match_immediate);
1628 * Creates an ia32 RotR or RotL (depending on the found pattern).
1630 * @return The created ia32 RotL or RotR node
1632 static ir_node *gen_Rotl(ir_node *node) {
1633 ir_node *rotate = NULL;
1634 ir_node *op1 = get_Rotl_left(node);
1635 ir_node *op2 = get_Rotl_right(node);
1637 /* Firm has only RotL, so we are looking for a right (op2)
1638 operand "-e+mode_size_bits" (it's an already modified "mode_size_bits-e",
1639 that means we can create a RotR instead of an Add and a RotL */
1643 ir_node *left = get_Add_left(add);
1644 ir_node *right = get_Add_right(add);
1645 if (is_Const(right)) {
1646 tarval *tv = get_Const_tarval(right);
1647 ir_mode *mode = get_irn_mode(node);
1648 long bits = get_mode_size_bits(mode);
1650 if (is_Minus(left) &&
1651 tarval_is_long(tv) &&
1652 get_tarval_long(tv) == bits &&
1655 DB((dbg, LEVEL_1, "RotL into RotR ... "));
1656 rotate = gen_Ror(node, op1, get_Minus_op(left));
1661 if (rotate == NULL) {
1662 rotate = gen_Rol(node, op1, op2);
1671 * Transforms a Minus node.
1673 * @return The created ia32 Minus node
1675 static ir_node *gen_Minus(ir_node *node)
1677 ir_node *op = get_Minus_op(node);
1678 ir_node *block = be_transform_node(get_nodes_block(node));
1679 ir_graph *irg = current_ir_graph;
1680 dbg_info *dbgi = get_irn_dbg_info(node);
1681 ir_mode *mode = get_irn_mode(node);
1686 if (mode_is_float(mode)) {
1687 ir_node *new_op = be_transform_node(op);
1688 if (ia32_cg_config.use_sse2) {
1689 /* TODO: non-optimal... if we have many xXors, then we should
1690 * rather create a load for the const and use that instead of
1691 * several AM nodes... */
1692 ir_node *noreg_gp = ia32_new_NoReg_gp(env_cg);
1693 ir_node *noreg_xmm = ia32_new_NoReg_xmm(env_cg);
1694 ir_node *nomem = new_rd_NoMem(irg);
1696 new_node = new_rd_ia32_xXor(dbgi, irg, block, noreg_gp, noreg_gp,
1697 nomem, new_op, noreg_xmm);
1699 size = get_mode_size_bits(mode);
1700 ent = ia32_gen_fp_known_const(size == 32 ? ia32_SSIGN : ia32_DSIGN);
1702 set_ia32_am_sc(new_node, ent);
1703 set_ia32_op_type(new_node, ia32_AddrModeS);
1704 set_ia32_ls_mode(new_node, mode);
1706 new_node = new_rd_ia32_vfchs(dbgi, irg, block, new_op);
1709 new_node = gen_unop(node, op, new_rd_ia32_Neg, match_mode_neutral);
1712 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
1718 * Transforms a Not node.
1720 * @return The created ia32 Not node
1722 static ir_node *gen_Not(ir_node *node) {
1723 ir_node *op = get_Not_op(node);
1725 assert(get_irn_mode(node) != mode_b); /* should be lowered already */
1726 assert (! mode_is_float(get_irn_mode(node)));
1728 return gen_unop(node, op, new_rd_ia32_Not, match_mode_neutral);
1734 * Transforms an Abs node.
1736 * @return The created ia32 Abs node
1738 static ir_node *gen_Abs(ir_node *node)
1740 ir_node *block = get_nodes_block(node);
1741 ir_node *new_block = be_transform_node(block);
1742 ir_node *op = get_Abs_op(node);
1743 ir_graph *irg = current_ir_graph;
1744 dbg_info *dbgi = get_irn_dbg_info(node);
1745 ir_mode *mode = get_irn_mode(node);
1746 ir_node *noreg_gp = ia32_new_NoReg_gp(env_cg);
1747 ir_node *nomem = new_NoMem();
1753 if (mode_is_float(mode)) {
1754 new_op = be_transform_node(op);
1756 if (ia32_cg_config.use_sse2) {
1757 ir_node *noreg_fp = ia32_new_NoReg_xmm(env_cg);
1758 new_node = new_rd_ia32_xAnd(dbgi,irg, new_block, noreg_gp, noreg_gp,
1759 nomem, new_op, noreg_fp);
1761 size = get_mode_size_bits(mode);
1762 ent = ia32_gen_fp_known_const(size == 32 ? ia32_SABS : ia32_DABS);
1764 set_ia32_am_sc(new_node, ent);
1766 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
1768 set_ia32_op_type(new_node, ia32_AddrModeS);
1769 set_ia32_ls_mode(new_node, mode);
1771 new_node = new_rd_ia32_vfabs(dbgi, irg, new_block, new_op);
1772 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
1775 ir_node *xor, *pval, *sign_extension;
1777 if (get_mode_size_bits(mode) == 32) {
1778 new_op = be_transform_node(op);
1780 new_op = create_I2I_Conv(mode, mode_Is, dbgi, block, op, node);
1783 pval = new_rd_ia32_ProduceVal(dbgi, irg, new_block);
1784 sign_extension = new_rd_ia32_Cltd(dbgi, irg, new_block,
1787 add_irn_dep(pval, get_irg_frame(irg));
1788 SET_IA32_ORIG_NODE(sign_extension,ia32_get_old_node_name(env_cg, node));
1790 xor = new_rd_ia32_Xor(dbgi, irg, new_block, noreg_gp, noreg_gp,
1791 nomem, new_op, sign_extension);
1792 SET_IA32_ORIG_NODE(xor, ia32_get_old_node_name(env_cg, node));
1794 new_node = new_rd_ia32_Sub(dbgi, irg, new_block, noreg_gp, noreg_gp,
1795 nomem, xor, sign_extension);
1796 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
1803 * Create a bt instruction for x & (1 << n) and place it into the block of cmp.
1805 static ir_node *gen_bt(ir_node *cmp, ir_node *x, ir_node *n) {
1806 dbg_info *dbgi = get_irn_dbg_info(cmp);
1807 ir_node *block = get_nodes_block(cmp);
1808 ir_node *new_block = be_transform_node(block);
1809 ir_node *op1 = be_transform_node(x);
1810 ir_node *op2 = be_transform_node(n);
1812 return new_rd_ia32_Bt(dbgi, current_ir_graph, new_block, op1, op2);
1816 * Transform a node returning a "flag" result.
1818 * @param node the node to transform
1819 * @param pnc_out the compare mode to use
1821 static ir_node *get_flags_node(ir_node *node, pn_Cmp *pnc_out)
1830 /* we have a Cmp as input */
1831 if (is_Proj(node)) {
1832 ir_node *pred = get_Proj_pred(node);
1834 pn_Cmp pnc = get_Proj_proj(node);
1835 if (ia32_cg_config.use_bt && (pnc == pn_Cmp_Lg || pnc == pn_Cmp_Eq)) {
1836 ir_node *l = get_Cmp_left(pred);
1837 ir_node *r = get_Cmp_right(pred);
1839 ir_node *la = get_And_left(l);
1840 ir_node *ra = get_And_right(l);
1842 ir_node *c = get_Shl_left(la);
1843 if (is_Const_1(c) && (is_Const_0(r) || r == la)) {
1844 /* (1 << n) & ra) */
1845 ir_node *n = get_Shl_right(la);
1846 flags = gen_bt(pred, ra, n);
1847 /* we must generate a Jc/Jnc jump */
1848 pnc = pnc == pn_Cmp_Lg ? pn_Cmp_Lt : pn_Cmp_Ge;
1851 *pnc_out = ia32_pn_Cmp_unsigned | pnc;
1856 ir_node *c = get_Shl_left(ra);
1857 if (is_Const_1(c) && (is_Const_0(r) || r == ra)) {
1858 /* la & (1 << n)) */
1859 ir_node *n = get_Shl_right(ra);
1860 flags = gen_bt(pred, la, n);
1861 /* we must generate a Jc/Jnc jump */
1862 pnc = pnc == pn_Cmp_Lg ? pn_Cmp_Lt : pn_Cmp_Ge;
1865 *pnc_out = ia32_pn_Cmp_unsigned | pnc;
1871 flags = be_transform_node(pred);
1877 /* a mode_b value, we have to compare it against 0 */
1878 dbgi = get_irn_dbg_info(node);
1879 new_block = be_transform_node(get_nodes_block(node));
1880 new_op = be_transform_node(node);
1881 noreg = ia32_new_NoReg_gp(env_cg);
1882 nomem = new_NoMem();
1883 flags = new_rd_ia32_Test(dbgi, current_ir_graph, new_block, noreg, noreg, nomem,
1884 new_op, new_op, /*is_permuted=*/0, /*cmp_unsigned=*/0);
1885 *pnc_out = pn_Cmp_Lg;
1890 * Transforms a Load.
1892 * @return the created ia32 Load node
1894 static ir_node *gen_Load(ir_node *node) {
1895 ir_node *old_block = get_nodes_block(node);
1896 ir_node *block = be_transform_node(old_block);
1897 ir_node *ptr = get_Load_ptr(node);
1898 ir_node *mem = get_Load_mem(node);
1899 ir_node *new_mem = be_transform_node(mem);
1902 ir_graph *irg = current_ir_graph;
1903 dbg_info *dbgi = get_irn_dbg_info(node);
1904 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
1905 ir_mode *mode = get_Load_mode(node);
1908 ia32_address_t addr;
1910 /* construct load address */
1911 memset(&addr, 0, sizeof(addr));
1912 ia32_create_address_mode(&addr, ptr, /*force=*/0);
1919 base = be_transform_node(base);
1925 index = be_transform_node(index);
1928 if (mode_is_float(mode)) {
1929 if (ia32_cg_config.use_sse2) {
1930 new_node = new_rd_ia32_xLoad(dbgi, irg, block, base, index, new_mem,
1932 res_mode = mode_xmm;
1934 new_node = new_rd_ia32_vfld(dbgi, irg, block, base, index, new_mem,
1936 res_mode = mode_vfp;
1939 assert(mode != mode_b);
1941 /* create a conv node with address mode for smaller modes */
1942 if(get_mode_size_bits(mode) < 32) {
1943 new_node = new_rd_ia32_Conv_I2I(dbgi, irg, block, base, index,
1944 new_mem, noreg, mode);
1946 new_node = new_rd_ia32_Load(dbgi, irg, block, base, index, new_mem);
1951 set_irn_pinned(new_node, get_irn_pinned(node));
1952 set_ia32_op_type(new_node, ia32_AddrModeS);
1953 set_ia32_ls_mode(new_node, mode);
1954 set_address(new_node, &addr);
1956 if(get_irn_pinned(node) == op_pin_state_floats) {
1957 add_ia32_flags(new_node, arch_irn_flags_rematerializable);
1960 /* make sure we are scheduled behind the initial IncSP/Barrier
1961 * to avoid spills being placed before it
1963 if (block == get_irg_start_block(irg)) {
1964 add_irn_dep(new_node, get_irg_frame(irg));
1967 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
1972 static int use_dest_am(ir_node *block, ir_node *node, ir_node *mem,
1973 ir_node *ptr, ir_node *other)
1980 /* we only use address mode if we're the only user of the load */
1981 if(get_irn_n_edges(node) > 1)
1984 load = get_Proj_pred(node);
1987 if(get_nodes_block(load) != block)
1990 /* Store should be attached to the load */
1991 if(!is_Proj(mem) || get_Proj_pred(mem) != load)
1993 /* store should have the same pointer as the load */
1994 if(get_Load_ptr(load) != ptr)
1997 /* don't do AM if other node inputs depend on the load (via mem-proj) */
1998 if(other != NULL && get_nodes_block(other) == block
1999 && heights_reachable_in_block(heights, other, load))
2005 static void set_transformed_and_mark(ir_node *const old_node, ir_node *const new_node)
2007 mark_irn_visited(old_node);
2008 be_set_transformed_node(old_node, new_node);
2011 static ir_node *dest_am_binop(ir_node *node, ir_node *op1, ir_node *op2,
2012 ir_node *mem, ir_node *ptr, ir_mode *mode,
2013 construct_binop_dest_func *func,
2014 construct_binop_dest_func *func8bit,
2015 match_flags_t flags)
2017 ir_node *src_block = get_nodes_block(node);
2019 ir_node *noreg_gp = ia32_new_NoReg_gp(env_cg);
2020 ir_graph *irg = current_ir_graph;
2026 ia32_address_mode_t am;
2027 ia32_address_t *addr = &am.addr;
2028 memset(&am, 0, sizeof(am));
2030 assert(flags & match_dest_am);
2031 assert(flags & match_immediate); /* there is no destam node without... */
2032 commutative = (flags & match_commutative) != 0;
2034 if(use_dest_am(src_block, op1, mem, ptr, op2)) {
2035 build_address(&am, op1);
2036 new_op = create_immediate_or_transform(op2, 0);
2037 } else if(commutative && use_dest_am(src_block, op2, mem, ptr, op1)) {
2038 build_address(&am, op2);
2039 new_op = create_immediate_or_transform(op1, 0);
2044 if(addr->base == NULL)
2045 addr->base = noreg_gp;
2046 if(addr->index == NULL)
2047 addr->index = noreg_gp;
2048 if(addr->mem == NULL)
2049 addr->mem = new_NoMem();
2051 dbgi = get_irn_dbg_info(node);
2052 block = be_transform_node(src_block);
2053 if(get_mode_size_bits(mode) == 8) {
2054 new_node = func8bit(dbgi, irg, block, addr->base, addr->index,
2057 new_node = func(dbgi, irg, block, addr->base, addr->index, addr->mem,
2060 set_address(new_node, addr);
2061 set_ia32_op_type(new_node, ia32_AddrModeD);
2062 set_ia32_ls_mode(new_node, mode);
2063 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
2065 set_transformed_and_mark(get_Proj_pred(am.mem_proj), new_node);
2066 mem_proj = be_transform_node(am.mem_proj);
2067 set_transformed_and_mark(mem_proj ? mem_proj : am.mem_proj, new_node);
2072 static ir_node *dest_am_unop(ir_node *node, ir_node *op, ir_node *mem,
2073 ir_node *ptr, ir_mode *mode,
2074 construct_unop_dest_func *func)
2076 ir_graph *irg = current_ir_graph;
2077 ir_node *src_block = get_nodes_block(node);
2082 ia32_address_mode_t am;
2083 ia32_address_t *addr = &am.addr;
2084 memset(&am, 0, sizeof(am));
2086 if(!use_dest_am(src_block, op, mem, ptr, NULL))
2089 build_address(&am, op);
2091 dbgi = get_irn_dbg_info(node);
2092 block = be_transform_node(src_block);
2093 new_node = func(dbgi, irg, block, addr->base, addr->index, addr->mem);
2094 set_address(new_node, addr);
2095 set_ia32_op_type(new_node, ia32_AddrModeD);
2096 set_ia32_ls_mode(new_node, mode);
2097 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
2099 set_transformed_and_mark(get_Proj_pred(am.mem_proj), new_node);
2100 mem_proj = be_transform_node(am.mem_proj);
2101 set_transformed_and_mark(mem_proj ? mem_proj : am.mem_proj, new_node);
2106 static ir_node *try_create_SetMem(ir_node *node, ir_node *ptr, ir_node *mem) {
2107 ir_mode *mode = get_irn_mode(node);
2108 ir_node *mux_true = get_Mux_true(node);
2109 ir_node *mux_false = get_Mux_false(node);
2120 ia32_address_t addr;
2122 if(get_mode_size_bits(mode) != 8)
2125 if(is_Const_1(mux_true) && is_Const_0(mux_false)) {
2127 } else if(is_Const_0(mux_true) && is_Const_1(mux_false)) {
2133 build_address_ptr(&addr, ptr, mem);
2135 irg = current_ir_graph;
2136 dbgi = get_irn_dbg_info(node);
2137 block = get_nodes_block(node);
2138 new_block = be_transform_node(block);
2139 cond = get_Mux_sel(node);
2140 flags = get_flags_node(cond, &pnc);
2141 new_mem = be_transform_node(mem);
2142 new_node = new_rd_ia32_SetMem(dbgi, irg, new_block, addr.base,
2143 addr.index, addr.mem, flags, pnc, negated);
2144 set_address(new_node, &addr);
2145 set_ia32_op_type(new_node, ia32_AddrModeD);
2146 set_ia32_ls_mode(new_node, mode);
2147 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
2152 static ir_node *try_create_dest_am(ir_node *node) {
2153 ir_node *val = get_Store_value(node);
2154 ir_node *mem = get_Store_mem(node);
2155 ir_node *ptr = get_Store_ptr(node);
2156 ir_mode *mode = get_irn_mode(val);
2157 unsigned bits = get_mode_size_bits(mode);
2162 /* handle only GP modes for now... */
2163 if(!ia32_mode_needs_gp_reg(mode))
2167 /* store must be the only user of the val node */
2168 if(get_irn_n_edges(val) > 1)
2170 /* skip pointless convs */
2172 ir_node *conv_op = get_Conv_op(val);
2173 ir_mode *pred_mode = get_irn_mode(conv_op);
2174 if(pred_mode == mode_b || bits <= get_mode_size_bits(pred_mode)) {
2182 /* value must be in the same block */
2183 if(get_nodes_block(node) != get_nodes_block(val))
2186 switch (get_irn_opcode(val)) {
2188 op1 = get_Add_left(val);
2189 op2 = get_Add_right(val);
2190 if(is_Const_1(op2)) {
2191 new_node = dest_am_unop(val, op1, mem, ptr, mode,
2192 new_rd_ia32_IncMem);
2194 } else if(is_Const_Minus_1(op2)) {
2195 new_node = dest_am_unop(val, op1, mem, ptr, mode,
2196 new_rd_ia32_DecMem);
2199 new_node = dest_am_binop(val, op1, op2, mem, ptr, mode,
2200 new_rd_ia32_AddMem, new_rd_ia32_AddMem8Bit,
2201 match_dest_am | match_commutative |
2205 op1 = get_Sub_left(val);
2206 op2 = get_Sub_right(val);
2208 ir_fprintf(stderr, "Optimisation warning: not-normalize sub ,C"
2211 new_node = dest_am_binop(val, op1, op2, mem, ptr, mode,
2212 new_rd_ia32_SubMem, new_rd_ia32_SubMem8Bit,
2213 match_dest_am | match_immediate |
2217 op1 = get_And_left(val);
2218 op2 = get_And_right(val);
2219 new_node = dest_am_binop(val, op1, op2, mem, ptr, mode,
2220 new_rd_ia32_AndMem, new_rd_ia32_AndMem8Bit,
2221 match_dest_am | match_commutative |
2225 op1 = get_Or_left(val);
2226 op2 = get_Or_right(val);
2227 new_node = dest_am_binop(val, op1, op2, mem, ptr, mode,
2228 new_rd_ia32_OrMem, new_rd_ia32_OrMem8Bit,
2229 match_dest_am | match_commutative |
2233 op1 = get_Eor_left(val);
2234 op2 = get_Eor_right(val);
2235 new_node = dest_am_binop(val, op1, op2, mem, ptr, mode,
2236 new_rd_ia32_XorMem, new_rd_ia32_XorMem8Bit,
2237 match_dest_am | match_commutative |
2241 op1 = get_Shl_left(val);
2242 op2 = get_Shl_right(val);
2243 new_node = dest_am_binop(val, op1, op2, mem, ptr, mode,
2244 new_rd_ia32_ShlMem, new_rd_ia32_ShlMem,
2245 match_dest_am | match_immediate);
2248 op1 = get_Shr_left(val);
2249 op2 = get_Shr_right(val);
2250 new_node = dest_am_binop(val, op1, op2, mem, ptr, mode,
2251 new_rd_ia32_ShrMem, new_rd_ia32_ShrMem,
2252 match_dest_am | match_immediate);
2255 op1 = get_Shrs_left(val);
2256 op2 = get_Shrs_right(val);
2257 new_node = dest_am_binop(val, op1, op2, mem, ptr, mode,
2258 new_rd_ia32_SarMem, new_rd_ia32_SarMem,
2259 match_dest_am | match_immediate);
2262 op1 = get_Rotl_left(val);
2263 op2 = get_Rotl_right(val);
2264 new_node = dest_am_binop(val, op1, op2, mem, ptr, mode,
2265 new_rd_ia32_RolMem, new_rd_ia32_RolMem,
2266 match_dest_am | match_immediate);
2268 /* TODO: match ROR patterns... */
2270 new_node = try_create_SetMem(val, ptr, mem);
2273 op1 = get_Minus_op(val);
2274 new_node = dest_am_unop(val, op1, mem, ptr, mode, new_rd_ia32_NegMem);
2277 /* should be lowered already */
2278 assert(mode != mode_b);
2279 op1 = get_Not_op(val);
2280 new_node = dest_am_unop(val, op1, mem, ptr, mode, new_rd_ia32_NotMem);
2286 if(new_node != NULL) {
2287 if(get_irn_pinned(new_node) != op_pin_state_pinned &&
2288 get_irn_pinned(node) == op_pin_state_pinned) {
2289 set_irn_pinned(new_node, op_pin_state_pinned);
2296 static int is_float_to_int32_conv(const ir_node *node)
2298 ir_mode *mode = get_irn_mode(node);
2302 if(get_mode_size_bits(mode) != 32 || !ia32_mode_needs_gp_reg(mode))
2304 /* don't report unsigned as conv to 32bit, because we really need to do
2305 * a vfist with 64bit signed in this case */
2306 if(!mode_is_signed(mode))
2311 conv_op = get_Conv_op(node);
2312 conv_mode = get_irn_mode(conv_op);
2314 if(!mode_is_float(conv_mode))
2321 * Transform a Store(floatConst).
2323 * @return the created ia32 Store node
2325 static ir_node *gen_float_const_Store(ir_node *node, ir_node *cns) {
2326 ir_mode *mode = get_irn_mode(cns);
2327 int size = get_mode_size_bits(mode);
2328 tarval *tv = get_Const_tarval(cns);
2329 ir_node *block = get_nodes_block(node);
2330 ir_node *new_block = be_transform_node(block);
2331 ir_node *ptr = get_Store_ptr(node);
2332 ir_node *mem = get_Store_mem(node);
2333 ir_graph *irg = current_ir_graph;
2334 dbg_info *dbgi = get_irn_dbg_info(node);
2335 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
2338 ia32_address_t addr;
2340 unsigned val = get_tarval_sub_bits(tv, 0) |
2341 (get_tarval_sub_bits(tv, 1) << 8) |
2342 (get_tarval_sub_bits(tv, 2) << 16) |
2343 (get_tarval_sub_bits(tv, 3) << 24);
2344 ir_node *imm = create_Immediate(NULL, 0, val);
2346 /* construct store address */
2347 memset(&addr, 0, sizeof(addr));
2348 ia32_create_address_mode(&addr, ptr, /*force=*/0);
2350 if (addr.base == NULL) {
2353 addr.base = be_transform_node(addr.base);
2356 if (addr.index == NULL) {
2359 addr.index = be_transform_node(addr.index);
2361 addr.mem = be_transform_node(mem);
2363 new_node = new_rd_ia32_Store(dbgi, irg, new_block, addr.base,
2364 addr.index, addr.mem, imm);
2366 set_irn_pinned(new_node, get_irn_pinned(node));
2367 set_ia32_op_type(new_node, ia32_AddrModeD);
2368 set_ia32_ls_mode(new_node, mode_Iu);
2370 set_address(new_node, &addr);
2372 /** add more stores if needed */
2374 unsigned val = get_tarval_sub_bits(tv, ofs) |
2375 (get_tarval_sub_bits(tv, ofs + 1) << 8) |
2376 (get_tarval_sub_bits(tv, ofs + 2) << 16) |
2377 (get_tarval_sub_bits(tv, ofs + 3) << 24);
2378 ir_node *imm = create_Immediate(NULL, 0, val);
2381 addr.mem = new_node;
2383 new_node = new_rd_ia32_Store(dbgi, irg, new_block, addr.base,
2384 addr.index, addr.mem, imm);
2386 set_irn_pinned(new_node, get_irn_pinned(node));
2387 set_ia32_op_type(new_node, ia32_AddrModeD);
2388 set_ia32_ls_mode(new_node, mode_Iu);
2390 set_address(new_node, &addr);
2395 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
2400 * Generate a vfist or vfisttp instruction.
2402 static ir_node *gen_vfist(dbg_info *dbgi, ir_graph *irg, ir_node *block, ir_node *base, ir_node *index,
2403 ir_node *mem, ir_node *val, ir_node **fist)
2407 if (ia32_cg_config.use_fisttp) {
2408 /* Note: fisttp ALWAYS pop the tos. We have to ensure here that the value is copied
2409 if other users exists */
2410 const arch_register_class_t *reg_class = &ia32_reg_classes[CLASS_ia32_vfp];
2411 ir_node *vfisttp = new_rd_ia32_vfisttp(dbgi, irg, block, base, index, mem, val);
2412 ir_node *value = new_r_Proj(irg, block, vfisttp, mode_E, pn_ia32_vfisttp_res);
2413 be_new_Keep(reg_class, irg, block, 1, &value);
2415 new_node = new_r_Proj(irg, block, vfisttp, mode_M, pn_ia32_vfisttp_M);
2418 ir_node *trunc_mode = ia32_new_Fpu_truncate(env_cg);
2421 new_node = new_rd_ia32_vfist(dbgi, irg, block, base, index, mem, val, trunc_mode);
2427 * Transforms a normal Store.
2429 * @return the created ia32 Store node
2431 static ir_node *gen_normal_Store(ir_node *node)
2433 ir_node *val = get_Store_value(node);
2434 ir_mode *mode = get_irn_mode(val);
2435 ir_node *block = get_nodes_block(node);
2436 ir_node *new_block = be_transform_node(block);
2437 ir_node *ptr = get_Store_ptr(node);
2438 ir_node *mem = get_Store_mem(node);
2439 ir_graph *irg = current_ir_graph;
2440 dbg_info *dbgi = get_irn_dbg_info(node);
2441 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
2442 ir_node *new_val, *new_node, *store;
2443 ia32_address_t addr;
2445 /* check for destination address mode */
2446 new_node = try_create_dest_am(node);
2447 if (new_node != NULL)
2450 /* construct store address */
2451 memset(&addr, 0, sizeof(addr));
2452 ia32_create_address_mode(&addr, ptr, /*force=*/0);
2454 if (addr.base == NULL) {
2457 addr.base = be_transform_node(addr.base);
2460 if (addr.index == NULL) {
2463 addr.index = be_transform_node(addr.index);
2465 addr.mem = be_transform_node(mem);
2467 if (mode_is_float(mode)) {
2468 /* Convs (and strict-Convs) before stores are unnecessary if the mode
2470 while (is_Conv(val) && mode == get_irn_mode(val)) {
2471 ir_node *op = get_Conv_op(val);
2472 if (!mode_is_float(get_irn_mode(op)))
2476 new_val = be_transform_node(val);
2477 if (ia32_cg_config.use_sse2) {
2478 new_node = new_rd_ia32_xStore(dbgi, irg, new_block, addr.base,
2479 addr.index, addr.mem, new_val);
2481 new_node = new_rd_ia32_vfst(dbgi, irg, new_block, addr.base,
2482 addr.index, addr.mem, new_val, mode);
2485 } else if (!ia32_cg_config.use_sse2 && is_float_to_int32_conv(val)) {
2486 val = get_Conv_op(val);
2488 /* TODO: is this optimisation still necessary at all (middleend)? */
2489 /* We can skip ALL float->float up-Convs (and strict-up-Convs) before stores. */
2490 while (is_Conv(val)) {
2491 ir_node *op = get_Conv_op(val);
2492 if (!mode_is_float(get_irn_mode(op)))
2494 if (get_mode_size_bits(get_irn_mode(op)) > get_mode_size_bits(get_irn_mode(val)))
2498 new_val = be_transform_node(val);
2499 new_node = gen_vfist(dbgi, irg, new_block, addr.base, addr.index, addr.mem, new_val, &store);
2501 new_val = create_immediate_or_transform(val, 0);
2502 assert(mode != mode_b);
2504 if (get_mode_size_bits(mode) == 8) {
2505 new_node = new_rd_ia32_Store8Bit(dbgi, irg, new_block, addr.base,
2506 addr.index, addr.mem, new_val);
2508 new_node = new_rd_ia32_Store(dbgi, irg, new_block, addr.base,
2509 addr.index, addr.mem, new_val);
2514 set_irn_pinned(store, get_irn_pinned(node));
2515 set_ia32_op_type(store, ia32_AddrModeD);
2516 set_ia32_ls_mode(store, mode);
2518 set_address(store, &addr);
2519 SET_IA32_ORIG_NODE(store, ia32_get_old_node_name(env_cg, node));
2525 * Transforms a Store.
2527 * @return the created ia32 Store node
2529 static ir_node *gen_Store(ir_node *node)
2531 ir_node *val = get_Store_value(node);
2532 ir_mode *mode = get_irn_mode(val);
2534 if (mode_is_float(mode) && is_Const(val)) {
2537 /* we are storing a floating point constant */
2538 if (ia32_cg_config.use_sse2) {
2539 transform = !is_simple_sse_Const(val);
2541 transform = !is_simple_x87_Const(val);
2544 return gen_float_const_Store(node, val);
2546 return gen_normal_Store(node);
2550 * Transforms a Switch.
2552 * @return the created ia32 SwitchJmp node
2554 static ir_node *create_Switch(ir_node *node)
2556 ir_graph *irg = current_ir_graph;
2557 dbg_info *dbgi = get_irn_dbg_info(node);
2558 ir_node *block = be_transform_node(get_nodes_block(node));
2559 ir_node *sel = get_Cond_selector(node);
2560 ir_node *new_sel = be_transform_node(sel);
2561 int switch_min = INT_MAX;
2562 int switch_max = INT_MIN;
2563 long default_pn = get_Cond_defaultProj(node);
2565 const ir_edge_t *edge;
2567 assert(get_mode_size_bits(get_irn_mode(sel)) == 32);
2569 /* determine the smallest switch case value */
2570 foreach_out_edge(node, edge) {
2571 ir_node *proj = get_edge_src_irn(edge);
2572 long pn = get_Proj_proj(proj);
2573 if(pn == default_pn)
2582 if((unsigned) (switch_max - switch_min) > 256000) {
2583 panic("Size of switch %+F bigger than 256000", node);
2586 if (switch_min != 0) {
2587 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
2589 /* if smallest switch case is not 0 we need an additional sub */
2590 new_sel = new_rd_ia32_Lea(dbgi, irg, block, new_sel, noreg);
2591 add_ia32_am_offs_int(new_sel, -switch_min);
2592 set_ia32_op_type(new_sel, ia32_AddrModeS);
2594 SET_IA32_ORIG_NODE(new_sel, ia32_get_old_node_name(env_cg, node));
2597 new_node = new_rd_ia32_SwitchJmp(dbgi, irg, block, new_sel, default_pn);
2598 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
2604 * Transform a Cond node.
2606 static ir_node *gen_Cond(ir_node *node) {
2607 ir_node *block = get_nodes_block(node);
2608 ir_node *new_block = be_transform_node(block);
2609 ir_graph *irg = current_ir_graph;
2610 dbg_info *dbgi = get_irn_dbg_info(node);
2611 ir_node *sel = get_Cond_selector(node);
2612 ir_mode *sel_mode = get_irn_mode(sel);
2613 ir_node *flags = NULL;
2617 if (sel_mode != mode_b) {
2618 return create_Switch(node);
2621 /* we get flags from a Cmp */
2622 flags = get_flags_node(sel, &pnc);
2624 new_node = new_rd_ia32_Jcc(dbgi, irg, new_block, flags, pnc);
2625 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
2630 static ir_node *gen_be_Copy(ir_node *node)
2632 ir_node *new_node = be_duplicate_node(node);
2633 ir_mode *mode = get_irn_mode(new_node);
2635 if (ia32_mode_needs_gp_reg(mode)) {
2636 set_irn_mode(new_node, mode_Iu);
2642 static ir_node *create_Fucom(ir_node *node)
2644 ir_graph *irg = current_ir_graph;
2645 dbg_info *dbgi = get_irn_dbg_info(node);
2646 ir_node *block = get_nodes_block(node);
2647 ir_node *new_block = be_transform_node(block);
2648 ir_node *left = get_Cmp_left(node);
2649 ir_node *new_left = be_transform_node(left);
2650 ir_node *right = get_Cmp_right(node);
2654 if(ia32_cg_config.use_fucomi) {
2655 new_right = be_transform_node(right);
2656 new_node = new_rd_ia32_vFucomi(dbgi, irg, new_block, new_left,
2658 set_ia32_commutative(new_node);
2659 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
2661 if(ia32_cg_config.use_ftst && is_Const_0(right)) {
2662 new_node = new_rd_ia32_vFtstFnstsw(dbgi, irg, new_block, new_left,
2665 new_right = be_transform_node(right);
2666 new_node = new_rd_ia32_vFucomFnstsw(dbgi, irg, new_block, new_left,
2670 set_ia32_commutative(new_node);
2672 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
2674 new_node = new_rd_ia32_Sahf(dbgi, irg, new_block, new_node);
2675 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
2681 static ir_node *create_Ucomi(ir_node *node)
2683 ir_graph *irg = current_ir_graph;
2684 dbg_info *dbgi = get_irn_dbg_info(node);
2685 ir_node *src_block = get_nodes_block(node);
2686 ir_node *new_block = be_transform_node(src_block);
2687 ir_node *left = get_Cmp_left(node);
2688 ir_node *right = get_Cmp_right(node);
2690 ia32_address_mode_t am;
2691 ia32_address_t *addr = &am.addr;
2693 match_arguments(&am, src_block, left, right, NULL,
2694 match_commutative | match_am);
2696 new_node = new_rd_ia32_Ucomi(dbgi, irg, new_block, addr->base, addr->index,
2697 addr->mem, am.new_op1, am.new_op2,
2699 set_am_attributes(new_node, &am);
2701 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
2703 new_node = fix_mem_proj(new_node, &am);
2709 * helper function: checks wether all Cmp projs are Lg or Eq which is needed
2710 * to fold an and into a test node
2712 static int can_fold_test_and(ir_node *node)
2714 const ir_edge_t *edge;
2716 /** we can only have eq and lg projs */
2717 foreach_out_edge(node, edge) {
2718 ir_node *proj = get_edge_src_irn(edge);
2719 pn_Cmp pnc = get_Proj_proj(proj);
2720 if(pnc != pn_Cmp_Eq && pnc != pn_Cmp_Lg)
2728 * Generate code for a Cmp.
2730 static ir_node *gen_Cmp(ir_node *node)
2732 ir_graph *irg = current_ir_graph;
2733 dbg_info *dbgi = get_irn_dbg_info(node);
2734 ir_node *block = get_nodes_block(node);
2735 ir_node *new_block = be_transform_node(block);
2736 ir_node *left = get_Cmp_left(node);
2737 ir_node *right = get_Cmp_right(node);
2738 ir_mode *cmp_mode = get_irn_mode(left);
2740 ia32_address_mode_t am;
2741 ia32_address_t *addr = &am.addr;
2744 if(mode_is_float(cmp_mode)) {
2745 if (ia32_cg_config.use_sse2) {
2746 return create_Ucomi(node);
2748 return create_Fucom(node);
2752 assert(ia32_mode_needs_gp_reg(cmp_mode));
2754 /* Prefer the Test instruction, when encountering (x & y) ==/!= 0 */
2755 cmp_unsigned = !mode_is_signed(cmp_mode);
2756 if (is_Const_0(right) &&
2758 get_irn_n_edges(left) == 1 &&
2759 can_fold_test_and(node)) {
2760 /* Test(and_left, and_right) */
2761 ir_node *and_left = get_And_left(left);
2762 ir_node *and_right = get_And_right(left);
2763 ir_mode *mode = get_irn_mode(and_left);
2765 match_arguments(&am, block, and_left, and_right, NULL,
2767 match_am | match_8bit_am | match_16bit_am |
2768 match_am_and_immediates | match_immediate |
2769 match_8bit | match_16bit);
2770 if (get_mode_size_bits(mode) == 8) {
2771 new_node = new_rd_ia32_Test8Bit(dbgi, irg, new_block, addr->base,
2772 addr->index, addr->mem, am.new_op1,
2773 am.new_op2, am.ins_permuted,
2776 new_node = new_rd_ia32_Test(dbgi, irg, new_block, addr->base,
2777 addr->index, addr->mem, am.new_op1,
2778 am.new_op2, am.ins_permuted, cmp_unsigned);
2781 /* Cmp(left, right) */
2782 match_arguments(&am, block, left, right, NULL,
2783 match_commutative | match_am | match_8bit_am |
2784 match_16bit_am | match_am_and_immediates |
2785 match_immediate | match_8bit | match_16bit);
2786 if (get_mode_size_bits(cmp_mode) == 8) {
2787 new_node = new_rd_ia32_Cmp8Bit(dbgi, irg, new_block, addr->base,
2788 addr->index, addr->mem, am.new_op1,
2789 am.new_op2, am.ins_permuted,
2792 new_node = new_rd_ia32_Cmp(dbgi, irg, new_block, addr->base,
2793 addr->index, addr->mem, am.new_op1,
2794 am.new_op2, am.ins_permuted, cmp_unsigned);
2797 set_am_attributes(new_node, &am);
2798 set_ia32_ls_mode(new_node, cmp_mode);
2800 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
2802 new_node = fix_mem_proj(new_node, &am);
2807 static ir_node *create_CMov(ir_node *node, ir_node *flags, ir_node *new_flags,
2810 ir_graph *irg = current_ir_graph;
2811 dbg_info *dbgi = get_irn_dbg_info(node);
2812 ir_node *block = get_nodes_block(node);
2813 ir_node *new_block = be_transform_node(block);
2814 ir_node *val_true = get_Mux_true(node);
2815 ir_node *val_false = get_Mux_false(node);
2817 match_flags_t match_flags;
2818 ia32_address_mode_t am;
2819 ia32_address_t *addr;
2821 assert(ia32_cg_config.use_cmov);
2822 assert(ia32_mode_needs_gp_reg(get_irn_mode(val_true)));
2826 match_flags = match_commutative | match_am | match_16bit_am |
2829 match_arguments(&am, block, val_false, val_true, flags, match_flags);
2831 new_node = new_rd_ia32_CMov(dbgi, irg, new_block, addr->base, addr->index,
2832 addr->mem, am.new_op1, am.new_op2, new_flags,
2833 am.ins_permuted, pnc);
2834 set_am_attributes(new_node, &am);
2836 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
2838 new_node = fix_mem_proj(new_node, &am);
2844 * Creates a ia32 Setcc instruction.
2846 static ir_node *create_set_32bit(dbg_info *dbgi, ir_node *new_block,
2847 ir_node *flags, pn_Cmp pnc, ir_node *orig_node,
2850 ir_graph *irg = current_ir_graph;
2851 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
2852 ir_node *nomem = new_NoMem();
2853 ir_mode *mode = get_irn_mode(orig_node);
2856 new_node = new_rd_ia32_Set(dbgi, irg, new_block, flags, pnc, ins_permuted);
2857 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, orig_node));
2859 /* we might need to conv the result up */
2860 if (get_mode_size_bits(mode) > 8) {
2861 new_node = new_rd_ia32_Conv_I2I8Bit(dbgi, irg, new_block, noreg, noreg,
2862 nomem, new_node, mode_Bu);
2863 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, orig_node));
2870 * Create instruction for an unsigned Difference or Zero.
2872 static ir_node *create_Doz(ir_node *psi, ir_node *a, ir_node *b) {
2873 ir_graph *irg = current_ir_graph;
2874 ir_mode *mode = get_irn_mode(psi);
2875 ir_node *new_node, *sub, *sbb, *eflags, *block, *noreg, *tmpreg, *nomem;
2878 new_node = gen_binop(psi, a, b, new_rd_ia32_Sub,
2879 match_mode_neutral | match_am | match_immediate | match_two_users);
2881 block = get_nodes_block(new_node);
2883 if (is_Proj(new_node)) {
2884 sub = get_Proj_pred(new_node);
2885 assert(is_ia32_Sub(sub));
2888 set_irn_mode(sub, mode_T);
2889 new_node = new_rd_Proj(NULL, irg, block, sub, mode, pn_ia32_res);
2891 eflags = new_rd_Proj(NULL, irg, block, sub, mode_Iu, pn_ia32_Sub_flags);
2893 dbgi = get_irn_dbg_info(psi);
2894 noreg = ia32_new_NoReg_gp(env_cg);
2895 tmpreg = new_rd_ia32_ProduceVal(dbgi, irg, block);
2896 nomem = new_NoMem();
2897 sbb = new_rd_ia32_Sbb(dbgi, irg, block, noreg, noreg, nomem, tmpreg, tmpreg, eflags);
2899 new_node = new_rd_ia32_And(dbgi, irg, block, noreg, noreg, nomem, new_node, sbb);
2900 set_ia32_commutative(new_node);
2905 * Transforms a Mux node into CMov.
2907 * @return The transformed node.
2909 static ir_node *gen_Mux(ir_node *node)
2911 dbg_info *dbgi = get_irn_dbg_info(node);
2912 ir_node *block = get_nodes_block(node);
2913 ir_node *new_block = be_transform_node(block);
2914 ir_node *mux_true = get_Mux_true(node);
2915 ir_node *mux_false = get_Mux_false(node);
2916 ir_node *cond = get_Mux_sel(node);
2917 ir_mode *mode = get_irn_mode(node);
2920 assert(get_irn_mode(cond) == mode_b);
2922 /* Note: a Mux node uses a Load two times IFF it's used in the compare AND in the result */
2923 if (mode_is_float(mode)) {
2924 ir_node *cmp = get_Proj_pred(cond);
2925 ir_node *cmp_left = get_Cmp_left(cmp);
2926 ir_node *cmp_right = get_Cmp_right(cmp);
2927 pn_Cmp pnc = get_Proj_proj(cond);
2929 if (ia32_cg_config.use_sse2) {
2930 if (pnc == pn_Cmp_Lt || pnc == pn_Cmp_Le) {
2931 if (cmp_left == mux_true && cmp_right == mux_false) {
2932 /* Mux(a <= b, a, b) => MIN */
2933 return gen_binop(node, cmp_left, cmp_right, new_rd_ia32_xMin,
2934 match_commutative | match_am | match_two_users);
2935 } else if (cmp_left == mux_false && cmp_right == mux_true) {
2936 /* Mux(a <= b, b, a) => MAX */
2937 return gen_binop(node, cmp_left, cmp_right, new_rd_ia32_xMax,
2938 match_commutative | match_am | match_two_users);
2940 } else if (pnc == pn_Cmp_Gt || pnc == pn_Cmp_Ge) {
2941 if (cmp_left == mux_true && cmp_right == mux_false) {
2942 /* Mux(a >= b, a, b) => MAX */
2943 return gen_binop(node, cmp_left, cmp_right, new_rd_ia32_xMax,
2944 match_commutative | match_am | match_two_users);
2945 } else if (cmp_left == mux_false && cmp_right == mux_true) {
2946 /* Mux(a >= b, b, a) => MIN */
2947 return gen_binop(node, cmp_left, cmp_right, new_rd_ia32_xMin,
2948 match_commutative | match_am | match_two_users);
2952 panic("cannot transform floating point Mux");
2958 assert(ia32_mode_needs_gp_reg(mode));
2960 if (is_Proj(cond)) {
2961 ir_node *cmp = get_Proj_pred(cond);
2963 ir_node *cmp_left = get_Cmp_left(cmp);
2964 ir_node *cmp_right = get_Cmp_right(cmp);
2965 pn_Cmp pnc = get_Proj_proj(cond);
2967 /* check for unsigned Doz first */
2968 if ((pnc & pn_Cmp_Gt) && !mode_is_signed(mode) &&
2969 is_Const_0(mux_false) && is_Sub(mux_true) &&
2970 get_Sub_left(mux_true) == cmp_left && get_Sub_right(mux_true) == cmp_right) {
2971 /* Mux(a >=u b, a - b, 0) unsigned Doz */
2972 return create_Doz(node, cmp_left, cmp_right);
2973 } else if ((pnc & pn_Cmp_Lt) && !mode_is_signed(mode) &&
2974 is_Const_0(mux_true) && is_Sub(mux_false) &&
2975 get_Sub_left(mux_false) == cmp_left && get_Sub_right(mux_false) == cmp_right) {
2976 /* Mux(a <=u b, 0, a - b) unsigned Doz */
2977 return create_Doz(node, cmp_left, cmp_right);
2982 flags = get_flags_node(cond, &pnc);
2984 if (is_Const(mux_true) && is_Const(mux_false)) {
2985 /* both are const, good */
2986 if (is_Const_1(mux_true) && is_Const_0(mux_false)) {
2987 new_node = create_set_32bit(dbgi, new_block, flags, pnc, node, /*is_premuted=*/0);
2988 } else if (is_Const_0(mux_true) && is_Const_1(mux_false)) {
2989 new_node = create_set_32bit(dbgi, new_block, flags, pnc, node, /*is_premuted=*/1);
2991 /* Not that simple. */
2996 new_node = create_CMov(node, cond, flags, pnc);
3004 * Create a conversion from x87 state register to general purpose.
3006 static ir_node *gen_x87_fp_to_gp(ir_node *node) {
3007 ir_node *block = be_transform_node(get_nodes_block(node));
3008 ir_node *op = get_Conv_op(node);
3009 ir_node *new_op = be_transform_node(op);
3010 ia32_code_gen_t *cg = env_cg;
3011 ir_graph *irg = current_ir_graph;
3012 dbg_info *dbgi = get_irn_dbg_info(node);
3013 ir_node *noreg = ia32_new_NoReg_gp(cg);
3014 ir_mode *mode = get_irn_mode(node);
3015 ir_node *fist, *load, *mem;
3017 mem = gen_vfist(dbgi, irg, block, get_irg_frame(irg), noreg, new_NoMem(), new_op, &fist);
3018 set_irn_pinned(fist, op_pin_state_floats);
3019 set_ia32_use_frame(fist);
3020 set_ia32_op_type(fist, ia32_AddrModeD);
3022 assert(get_mode_size_bits(mode) <= 32);
3023 /* exception we can only store signed 32 bit integers, so for unsigned
3024 we store a 64bit (signed) integer and load the lower bits */
3025 if(get_mode_size_bits(mode) == 32 && !mode_is_signed(mode)) {
3026 set_ia32_ls_mode(fist, mode_Ls);
3028 set_ia32_ls_mode(fist, mode_Is);
3030 SET_IA32_ORIG_NODE(fist, ia32_get_old_node_name(cg, node));
3033 load = new_rd_ia32_Load(dbgi, irg, block, get_irg_frame(irg), noreg, mem);
3035 set_irn_pinned(load, op_pin_state_floats);
3036 set_ia32_use_frame(load);
3037 set_ia32_op_type(load, ia32_AddrModeS);
3038 set_ia32_ls_mode(load, mode_Is);
3039 if(get_ia32_ls_mode(fist) == mode_Ls) {
3040 ia32_attr_t *attr = get_ia32_attr(load);
3041 attr->data.need_64bit_stackent = 1;
3043 ia32_attr_t *attr = get_ia32_attr(load);
3044 attr->data.need_32bit_stackent = 1;
3046 SET_IA32_ORIG_NODE(load, ia32_get_old_node_name(cg, node));
3048 return new_r_Proj(irg, block, load, mode_Iu, pn_ia32_Load_res);
3052 * Creates a x87 strict Conv by placing a Store and a Load
3054 static ir_node *gen_x87_strict_conv(ir_mode *tgt_mode, ir_node *node)
3056 ir_node *block = get_nodes_block(node);
3057 ir_graph *irg = current_ir_graph;
3058 dbg_info *dbgi = get_irn_dbg_info(node);
3059 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
3060 ir_node *nomem = new_NoMem();
3061 ir_node *frame = get_irg_frame(irg);
3062 ir_node *store, *load;
3065 store = new_rd_ia32_vfst(dbgi, irg, block, frame, noreg, nomem, node,
3067 set_ia32_use_frame(store);
3068 set_ia32_op_type(store, ia32_AddrModeD);
3069 SET_IA32_ORIG_NODE(store, ia32_get_old_node_name(env_cg, node));
3071 load = new_rd_ia32_vfld(dbgi, irg, block, frame, noreg, store,
3073 set_ia32_use_frame(load);
3074 set_ia32_op_type(load, ia32_AddrModeS);
3075 SET_IA32_ORIG_NODE(load, ia32_get_old_node_name(env_cg, node));
3077 new_node = new_r_Proj(irg, block, load, mode_E, pn_ia32_vfld_res);
3082 * Create a conversion from general purpose to x87 register
3084 static ir_node *gen_x87_gp_to_fp(ir_node *node, ir_mode *src_mode) {
3085 ir_node *src_block = get_nodes_block(node);
3086 ir_node *block = be_transform_node(src_block);
3087 ir_graph *irg = current_ir_graph;
3088 dbg_info *dbgi = get_irn_dbg_info(node);
3089 ir_node *op = get_Conv_op(node);
3090 ir_node *new_op = NULL;
3094 ir_mode *store_mode;
3100 /* fild can use source AM if the operand is a signed 32bit integer */
3101 if (src_mode == mode_Is) {
3102 ia32_address_mode_t am;
3104 match_arguments(&am, src_block, NULL, op, NULL,
3105 match_am | match_try_am);
3106 if (am.op_type == ia32_AddrModeS) {
3107 ia32_address_t *addr = &am.addr;
3109 fild = new_rd_ia32_vfild(dbgi, irg, block, addr->base,
3110 addr->index, addr->mem);
3111 new_node = new_r_Proj(irg, block, fild, mode_vfp,
3114 set_am_attributes(fild, &am);
3115 SET_IA32_ORIG_NODE(fild, ia32_get_old_node_name(env_cg, node));
3117 fix_mem_proj(fild, &am);
3122 if(new_op == NULL) {
3123 new_op = be_transform_node(op);
3126 noreg = ia32_new_NoReg_gp(env_cg);
3127 nomem = new_NoMem();
3128 mode = get_irn_mode(op);
3130 /* first convert to 32 bit signed if necessary */
3131 src_bits = get_mode_size_bits(src_mode);
3132 if (src_bits == 8) {
3133 new_op = new_rd_ia32_Conv_I2I8Bit(dbgi, irg, block, noreg, noreg, nomem,
3135 SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env_cg, node));
3137 } else if (src_bits < 32) {
3138 new_op = new_rd_ia32_Conv_I2I(dbgi, irg, block, noreg, noreg, nomem,
3140 SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env_cg, node));
3144 assert(get_mode_size_bits(mode) == 32);
3147 store = new_rd_ia32_Store(dbgi, irg, block, get_irg_frame(irg), noreg, nomem,
3150 set_ia32_use_frame(store);
3151 set_ia32_op_type(store, ia32_AddrModeD);
3152 set_ia32_ls_mode(store, mode_Iu);
3154 /* exception for 32bit unsigned, do a 64bit spill+load */
3155 if(!mode_is_signed(mode)) {
3158 ir_node *zero_const = create_Immediate(NULL, 0, 0);
3160 ir_node *zero_store = new_rd_ia32_Store(dbgi, irg, block,
3161 get_irg_frame(irg), noreg, nomem,
3164 set_ia32_use_frame(zero_store);
3165 set_ia32_op_type(zero_store, ia32_AddrModeD);
3166 add_ia32_am_offs_int(zero_store, 4);
3167 set_ia32_ls_mode(zero_store, mode_Iu);
3172 store = new_rd_Sync(dbgi, irg, block, 2, in);
3173 store_mode = mode_Ls;
3175 store_mode = mode_Is;
3179 fild = new_rd_ia32_vfild(dbgi, irg, block, get_irg_frame(irg), noreg, store);
3181 set_ia32_use_frame(fild);
3182 set_ia32_op_type(fild, ia32_AddrModeS);
3183 set_ia32_ls_mode(fild, store_mode);
3185 new_node = new_r_Proj(irg, block, fild, mode_vfp, pn_ia32_vfild_res);
3191 * Create a conversion from one integer mode into another one
3193 static ir_node *create_I2I_Conv(ir_mode *src_mode, ir_mode *tgt_mode,
3194 dbg_info *dbgi, ir_node *block, ir_node *op,
3197 ir_graph *irg = current_ir_graph;
3198 int src_bits = get_mode_size_bits(src_mode);
3199 int tgt_bits = get_mode_size_bits(tgt_mode);
3200 ir_node *new_block = be_transform_node(block);
3202 ir_mode *smaller_mode;
3204 ia32_address_mode_t am;
3205 ia32_address_t *addr = &am.addr;
3208 if (src_bits < tgt_bits) {
3209 smaller_mode = src_mode;
3210 smaller_bits = src_bits;
3212 smaller_mode = tgt_mode;
3213 smaller_bits = tgt_bits;
3216 #ifdef DEBUG_libfirm
3218 ir_fprintf(stderr, "Optimisation warning: conv after constant %+F\n",
3223 match_arguments(&am, block, NULL, op, NULL,
3224 match_8bit | match_16bit |
3225 match_am | match_8bit_am | match_16bit_am);
3226 if (smaller_bits == 8) {
3227 new_node = new_rd_ia32_Conv_I2I8Bit(dbgi, irg, new_block, addr->base,
3228 addr->index, addr->mem, am.new_op2,
3231 new_node = new_rd_ia32_Conv_I2I(dbgi, irg, new_block, addr->base,
3232 addr->index, addr->mem, am.new_op2,
3235 set_am_attributes(new_node, &am);
3236 /* match_arguments assume that out-mode = in-mode, this isn't true here
3238 set_ia32_ls_mode(new_node, smaller_mode);
3239 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
3240 new_node = fix_mem_proj(new_node, &am);
3245 * Transforms a Conv node.
3247 * @return The created ia32 Conv node
3249 static ir_node *gen_Conv(ir_node *node) {
3250 ir_node *block = get_nodes_block(node);
3251 ir_node *new_block = be_transform_node(block);
3252 ir_node *op = get_Conv_op(node);
3253 ir_node *new_op = NULL;
3254 ir_graph *irg = current_ir_graph;
3255 dbg_info *dbgi = get_irn_dbg_info(node);
3256 ir_mode *src_mode = get_irn_mode(op);
3257 ir_mode *tgt_mode = get_irn_mode(node);
3258 int src_bits = get_mode_size_bits(src_mode);
3259 int tgt_bits = get_mode_size_bits(tgt_mode);
3260 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
3261 ir_node *nomem = new_rd_NoMem(irg);
3262 ir_node *res = NULL;
3264 if (src_mode == mode_b) {
3265 assert(mode_is_int(tgt_mode) || mode_is_reference(tgt_mode));
3266 /* nothing to do, we already model bools as 0/1 ints */
3267 return be_transform_node(op);
3270 if (src_mode == tgt_mode) {
3271 if (get_Conv_strict(node)) {
3272 if (ia32_cg_config.use_sse2) {
3273 /* when we are in SSE mode, we can kill all strict no-op conversion */
3274 return be_transform_node(op);
3277 /* this should be optimized already, but who knows... */
3278 DEBUG_ONLY(ir_fprintf(stderr, "Debug warning: conv %+F is pointless\n", node));
3279 DB((dbg, LEVEL_1, "killed Conv(mode, mode) ..."));
3280 return be_transform_node(op);
3284 if (mode_is_float(src_mode)) {
3285 new_op = be_transform_node(op);
3286 /* we convert from float ... */
3287 if (mode_is_float(tgt_mode)) {
3288 if(src_mode == mode_E && tgt_mode == mode_D
3289 && !get_Conv_strict(node)) {
3290 DB((dbg, LEVEL_1, "killed Conv(mode, mode) ..."));
3295 if (ia32_cg_config.use_sse2) {
3296 DB((dbg, LEVEL_1, "create Conv(float, float) ..."));
3297 res = new_rd_ia32_Conv_FP2FP(dbgi, irg, new_block, noreg, noreg,
3299 set_ia32_ls_mode(res, tgt_mode);
3301 if(get_Conv_strict(node)) {
3302 res = gen_x87_strict_conv(tgt_mode, new_op);
3303 SET_IA32_ORIG_NODE(get_Proj_pred(res), ia32_get_old_node_name(env_cg, node));
3306 DB((dbg, LEVEL_1, "killed Conv(float, float) ..."));
3311 DB((dbg, LEVEL_1, "create Conv(float, int) ..."));
3312 if (ia32_cg_config.use_sse2) {
3313 res = new_rd_ia32_Conv_FP2I(dbgi, irg, new_block, noreg, noreg,
3315 set_ia32_ls_mode(res, src_mode);
3317 return gen_x87_fp_to_gp(node);
3321 /* we convert from int ... */
3322 if (mode_is_float(tgt_mode)) {
3324 DB((dbg, LEVEL_1, "create Conv(int, float) ..."));
3325 if (ia32_cg_config.use_sse2) {
3326 new_op = be_transform_node(op);
3327 res = new_rd_ia32_Conv_I2FP(dbgi, irg, new_block, noreg, noreg,
3329 set_ia32_ls_mode(res, tgt_mode);
3331 res = gen_x87_gp_to_fp(node, src_mode);
3332 if(get_Conv_strict(node)) {
3333 /* The strict-Conv is only necessary, if the int mode has more bits
3334 * than the float mantissa */
3335 size_t int_mantissa = get_mode_size_bits(src_mode) - (mode_is_signed(src_mode) ? 1 : 0);
3336 size_t float_mantissa;
3337 /* FIXME There is no way to get the mantissa size of a mode */
3338 switch (get_mode_size_bits(tgt_mode)) {
3339 case 32: float_mantissa = 23 + 1; break; // + 1 for implicit 1
3340 case 64: float_mantissa = 52 + 1; break;
3341 case 80: float_mantissa = 64 + 1; break;
3342 default: float_mantissa = 0; break;
3344 if (float_mantissa < int_mantissa) {
3345 res = gen_x87_strict_conv(tgt_mode, res);
3346 SET_IA32_ORIG_NODE(get_Proj_pred(res), ia32_get_old_node_name(env_cg, node));
3351 } else if(tgt_mode == mode_b) {
3352 /* mode_b lowering already took care that we only have 0/1 values */
3353 DB((dbg, LEVEL_1, "omitting unnecessary Conv(%+F, %+F) ...",
3354 src_mode, tgt_mode));
3355 return be_transform_node(op);
3358 if (src_bits == tgt_bits) {
3359 DB((dbg, LEVEL_1, "omitting unnecessary Conv(%+F, %+F) ...",
3360 src_mode, tgt_mode));
3361 return be_transform_node(op);
3364 res = create_I2I_Conv(src_mode, tgt_mode, dbgi, block, op, node);
3372 static ir_node *create_immediate_or_transform(ir_node *node,
3373 char immediate_constraint_type)
3375 ir_node *new_node = try_create_Immediate(node, immediate_constraint_type);
3376 if (new_node == NULL) {
3377 new_node = be_transform_node(node);
3383 * Transforms a FrameAddr into an ia32 Add.
3385 static ir_node *gen_be_FrameAddr(ir_node *node) {
3386 ir_node *block = be_transform_node(get_nodes_block(node));
3387 ir_node *op = be_get_FrameAddr_frame(node);
3388 ir_node *new_op = be_transform_node(op);
3389 ir_graph *irg = current_ir_graph;
3390 dbg_info *dbgi = get_irn_dbg_info(node);
3391 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
3394 new_node = new_rd_ia32_Lea(dbgi, irg, block, new_op, noreg);
3395 set_ia32_frame_ent(new_node, arch_get_frame_entity(env_cg->arch_env, node));
3396 set_ia32_use_frame(new_node);
3398 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
3404 * In case SSE is used we need to copy the result from XMM0 to FPU TOS before return.
3406 static ir_node *gen_be_Return(ir_node *node) {
3407 ir_graph *irg = current_ir_graph;
3408 ir_node *ret_val = get_irn_n(node, be_pos_Return_val);
3409 ir_node *ret_mem = get_irn_n(node, be_pos_Return_mem);
3410 ir_entity *ent = get_irg_entity(irg);
3411 ir_type *tp = get_entity_type(ent);
3416 ir_node *frame, *sse_store, *fld, *mproj, *barrier;
3417 ir_node *new_barrier, *new_ret_val, *new_ret_mem;
3420 int pn_ret_val, pn_ret_mem, arity, i;
3422 assert(ret_val != NULL);
3423 if (be_Return_get_n_rets(node) < 1 || ! ia32_cg_config.use_sse2) {
3424 return be_duplicate_node(node);
3427 res_type = get_method_res_type(tp, 0);
3429 if (! is_Primitive_type(res_type)) {
3430 return be_duplicate_node(node);
3433 mode = get_type_mode(res_type);
3434 if (! mode_is_float(mode)) {
3435 return be_duplicate_node(node);
3438 assert(get_method_n_ress(tp) == 1);
3440 pn_ret_val = get_Proj_proj(ret_val);
3441 pn_ret_mem = get_Proj_proj(ret_mem);
3443 /* get the Barrier */
3444 barrier = get_Proj_pred(ret_val);
3446 /* get result input of the Barrier */
3447 ret_val = get_irn_n(barrier, pn_ret_val);
3448 new_ret_val = be_transform_node(ret_val);
3450 /* get memory input of the Barrier */
3451 ret_mem = get_irn_n(barrier, pn_ret_mem);
3452 new_ret_mem = be_transform_node(ret_mem);
3454 frame = get_irg_frame(irg);
3456 dbgi = get_irn_dbg_info(barrier);
3457 block = be_transform_node(get_nodes_block(barrier));
3459 noreg = ia32_new_NoReg_gp(env_cg);
3461 /* store xmm0 onto stack */
3462 sse_store = new_rd_ia32_xStoreSimple(dbgi, irg, block, frame, noreg,
3463 new_ret_mem, new_ret_val);
3464 set_ia32_ls_mode(sse_store, mode);
3465 set_ia32_op_type(sse_store, ia32_AddrModeD);
3466 set_ia32_use_frame(sse_store);
3468 /* load into x87 register */
3469 fld = new_rd_ia32_vfld(dbgi, irg, block, frame, noreg, sse_store, mode);
3470 set_ia32_op_type(fld, ia32_AddrModeS);
3471 set_ia32_use_frame(fld);
3473 mproj = new_r_Proj(irg, block, fld, mode_M, pn_ia32_vfld_M);
3474 fld = new_r_Proj(irg, block, fld, mode_vfp, pn_ia32_vfld_res);
3476 /* create a new barrier */
3477 arity = get_irn_arity(barrier);
3478 in = alloca(arity * sizeof(in[0]));
3479 for (i = 0; i < arity; ++i) {
3482 if (i == pn_ret_val) {
3484 } else if (i == pn_ret_mem) {
3487 ir_node *in = get_irn_n(barrier, i);
3488 new_in = be_transform_node(in);
3493 new_barrier = new_ir_node(dbgi, irg, block,
3494 get_irn_op(barrier), get_irn_mode(barrier),
3496 copy_node_attr(barrier, new_barrier);
3497 be_duplicate_deps(barrier, new_barrier);
3498 be_set_transformed_node(barrier, new_barrier);
3499 mark_irn_visited(barrier);
3501 /* transform normally */
3502 return be_duplicate_node(node);
3506 * Transform a be_AddSP into an ia32_SubSP.
3508 static ir_node *gen_be_AddSP(ir_node *node)
3510 ir_node *sz = get_irn_n(node, be_pos_AddSP_size);
3511 ir_node *sp = get_irn_n(node, be_pos_AddSP_old_sp);
3513 return gen_binop(node, sp, sz, new_rd_ia32_SubSP, match_am);
3517 * Transform a be_SubSP into an ia32_AddSP
3519 static ir_node *gen_be_SubSP(ir_node *node)
3521 ir_node *sz = get_irn_n(node, be_pos_SubSP_size);
3522 ir_node *sp = get_irn_n(node, be_pos_SubSP_old_sp);
3524 return gen_binop(node, sp, sz, new_rd_ia32_AddSP, match_am);
3528 * Change some phi modes
3530 static ir_node *gen_Phi(ir_node *node) {
3531 ir_node *block = be_transform_node(get_nodes_block(node));
3532 ir_graph *irg = current_ir_graph;
3533 dbg_info *dbgi = get_irn_dbg_info(node);
3534 ir_mode *mode = get_irn_mode(node);
3537 if(ia32_mode_needs_gp_reg(mode)) {
3538 /* we shouldn't have any 64bit stuff around anymore */
3539 assert(get_mode_size_bits(mode) <= 32);
3540 /* all integer operations are on 32bit registers now */
3542 } else if(mode_is_float(mode)) {
3543 if (ia32_cg_config.use_sse2) {
3550 /* phi nodes allow loops, so we use the old arguments for now
3551 * and fix this later */
3552 phi = new_ir_node(dbgi, irg, block, op_Phi, mode, get_irn_arity(node),
3553 get_irn_in(node) + 1);
3554 copy_node_attr(node, phi);
3555 be_duplicate_deps(node, phi);
3557 be_set_transformed_node(node, phi);
3558 be_enqueue_preds(node);
3566 static ir_node *gen_IJmp(ir_node *node)
3568 ir_node *block = get_nodes_block(node);
3569 ir_node *new_block = be_transform_node(block);
3570 dbg_info *dbgi = get_irn_dbg_info(node);
3571 ir_node *op = get_IJmp_target(node);
3573 ia32_address_mode_t am;
3574 ia32_address_t *addr = &am.addr;
3576 assert(get_irn_mode(op) == mode_P);
3578 match_arguments(&am, block, NULL, op, NULL,
3579 match_am | match_8bit_am | match_16bit_am |
3580 match_immediate | match_8bit | match_16bit);
3582 new_node = new_rd_ia32_IJmp(dbgi, current_ir_graph, new_block,
3583 addr->base, addr->index, addr->mem,
3585 set_am_attributes(new_node, &am);
3586 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
3588 new_node = fix_mem_proj(new_node, &am);
3594 * Transform a Bound node.
3596 static ir_node *gen_Bound(ir_node *node)
3599 ir_node *lower = get_Bound_lower(node);
3600 dbg_info *dbgi = get_irn_dbg_info(node);
3602 if (is_Const_0(lower)) {
3603 /* typical case for Java */
3604 ir_node *sub, *res, *flags, *block;
3605 ir_graph *irg = current_ir_graph;
3607 res = gen_binop(node, get_Bound_index(node), get_Bound_upper(node),
3608 new_rd_ia32_Sub, match_mode_neutral | match_am | match_immediate);
3610 block = get_nodes_block(res);
3611 if (! is_Proj(res)) {
3613 set_irn_mode(sub, mode_T);
3614 res = new_rd_Proj(NULL, irg, block, sub, mode_Iu, pn_ia32_res);
3616 sub = get_Proj_pred(res);
3618 flags = new_rd_Proj(NULL, irg, block, sub, mode_Iu, pn_ia32_Sub_flags);
3619 new_node = new_rd_ia32_Jcc(dbgi, irg, block, flags, pn_Cmp_Lt | ia32_pn_Cmp_unsigned);
3620 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
3622 panic("generic Bound not supported in ia32 Backend");
3628 static ir_node *gen_ia32_l_ShlDep(ir_node *node)
3630 ir_node *left = get_irn_n(node, n_ia32_l_ShlDep_val);
3631 ir_node *right = get_irn_n(node, n_ia32_l_ShlDep_count);
3633 return gen_shift_binop(node, left, right, new_rd_ia32_Shl,
3634 match_immediate | match_mode_neutral);
3637 static ir_node *gen_ia32_l_ShrDep(ir_node *node)
3639 ir_node *left = get_irn_n(node, n_ia32_l_ShrDep_val);
3640 ir_node *right = get_irn_n(node, n_ia32_l_ShrDep_count);
3641 return gen_shift_binop(node, left, right, new_rd_ia32_Shr,
3645 static ir_node *gen_ia32_l_SarDep(ir_node *node)
3647 ir_node *left = get_irn_n(node, n_ia32_l_SarDep_val);
3648 ir_node *right = get_irn_n(node, n_ia32_l_SarDep_count);
3649 return gen_shift_binop(node, left, right, new_rd_ia32_Sar,
3653 static ir_node *gen_ia32_l_Add(ir_node *node) {
3654 ir_node *left = get_irn_n(node, n_ia32_l_Add_left);
3655 ir_node *right = get_irn_n(node, n_ia32_l_Add_right);
3656 ir_node *lowered = gen_binop(node, left, right, new_rd_ia32_Add,
3657 match_commutative | match_am | match_immediate |
3658 match_mode_neutral);
3660 if(is_Proj(lowered)) {
3661 lowered = get_Proj_pred(lowered);
3663 assert(is_ia32_Add(lowered));
3664 set_irn_mode(lowered, mode_T);
3670 static ir_node *gen_ia32_l_Adc(ir_node *node)
3672 return gen_binop_flags(node, new_rd_ia32_Adc,
3673 match_commutative | match_am | match_immediate |
3674 match_mode_neutral);
3678 * Transforms a l_MulS into a "real" MulS node.
3680 * @return the created ia32 Mul node
3682 static ir_node *gen_ia32_l_Mul(ir_node *node) {
3683 ir_node *left = get_binop_left(node);
3684 ir_node *right = get_binop_right(node);
3686 return gen_binop(node, left, right, new_rd_ia32_Mul,
3687 match_commutative | match_am | match_mode_neutral);
3691 * Transforms a l_IMulS into a "real" IMul1OPS node.
3693 * @return the created ia32 IMul1OP node
3695 static ir_node *gen_ia32_l_IMul(ir_node *node) {
3696 ir_node *left = get_binop_left(node);
3697 ir_node *right = get_binop_right(node);
3699 return gen_binop(node, left, right, new_rd_ia32_IMul1OP,
3700 match_commutative | match_am | match_mode_neutral);
3703 static ir_node *gen_ia32_l_Sub(ir_node *node) {
3704 ir_node *left = get_irn_n(node, n_ia32_l_Sub_minuend);
3705 ir_node *right = get_irn_n(node, n_ia32_l_Sub_subtrahend);
3706 ir_node *lowered = gen_binop(node, left, right, new_rd_ia32_Sub,
3707 match_am | match_immediate | match_mode_neutral);
3709 if(is_Proj(lowered)) {
3710 lowered = get_Proj_pred(lowered);
3712 assert(is_ia32_Sub(lowered));
3713 set_irn_mode(lowered, mode_T);
3719 static ir_node *gen_ia32_l_Sbb(ir_node *node) {
3720 return gen_binop_flags(node, new_rd_ia32_Sbb,
3721 match_am | match_immediate | match_mode_neutral);
3725 * Transforms a l_ShlD/l_ShrD into a ShlD/ShrD. Those nodes have 3 data inputs:
3726 * op1 - target to be shifted
3727 * op2 - contains bits to be shifted into target
3729 * Only op3 can be an immediate.
3731 static ir_node *gen_lowered_64bit_shifts(ir_node *node, ir_node *high,
3732 ir_node *low, ir_node *count)
3734 ir_node *block = get_nodes_block(node);
3735 ir_node *new_block = be_transform_node(block);
3736 ir_graph *irg = current_ir_graph;
3737 dbg_info *dbgi = get_irn_dbg_info(node);
3738 ir_node *new_high = be_transform_node(high);
3739 ir_node *new_low = be_transform_node(low);
3743 /* the shift amount can be any mode that is bigger than 5 bits, since all
3744 * other bits are ignored anyway */
3745 while (is_Conv(count) && get_irn_n_edges(count) == 1) {
3746 assert(get_mode_size_bits(get_irn_mode(count)) >= 5);
3747 count = get_Conv_op(count);
3749 new_count = create_immediate_or_transform(count, 0);
3751 if (is_ia32_l_ShlD(node)) {
3752 new_node = new_rd_ia32_ShlD(dbgi, irg, new_block, new_high, new_low,
3755 new_node = new_rd_ia32_ShrD(dbgi, irg, new_block, new_high, new_low,
3758 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
3763 static ir_node *gen_ia32_l_ShlD(ir_node *node)
3765 ir_node *high = get_irn_n(node, n_ia32_l_ShlD_val_high);
3766 ir_node *low = get_irn_n(node, n_ia32_l_ShlD_val_low);
3767 ir_node *count = get_irn_n(node, n_ia32_l_ShlD_count);
3768 return gen_lowered_64bit_shifts(node, high, low, count);
3771 static ir_node *gen_ia32_l_ShrD(ir_node *node)
3773 ir_node *high = get_irn_n(node, n_ia32_l_ShrD_val_high);
3774 ir_node *low = get_irn_n(node, n_ia32_l_ShrD_val_low);
3775 ir_node *count = get_irn_n(node, n_ia32_l_ShrD_count);
3776 return gen_lowered_64bit_shifts(node, high, low, count);
3779 static ir_node *gen_ia32_l_LLtoFloat(ir_node *node) {
3780 ir_node *src_block = get_nodes_block(node);
3781 ir_node *block = be_transform_node(src_block);
3782 ir_graph *irg = current_ir_graph;
3783 dbg_info *dbgi = get_irn_dbg_info(node);
3784 ir_node *frame = get_irg_frame(irg);
3785 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
3786 ir_node *nomem = new_NoMem();
3787 ir_node *val_low = get_irn_n(node, n_ia32_l_LLtoFloat_val_low);
3788 ir_node *val_high = get_irn_n(node, n_ia32_l_LLtoFloat_val_high);
3789 ir_node *new_val_low = be_transform_node(val_low);
3790 ir_node *new_val_high = be_transform_node(val_high);
3795 ir_node *store_high;
3797 if(!mode_is_signed(get_irn_mode(val_high))) {
3798 panic("unsigned long long -> float not supported yet (%+F)", node);
3802 store_low = new_rd_ia32_Store(dbgi, irg, block, frame, noreg, nomem,
3804 store_high = new_rd_ia32_Store(dbgi, irg, block, frame, noreg, nomem,
3806 SET_IA32_ORIG_NODE(store_low, ia32_get_old_node_name(env_cg, node));
3807 SET_IA32_ORIG_NODE(store_high, ia32_get_old_node_name(env_cg, node));
3809 set_ia32_use_frame(store_low);
3810 set_ia32_use_frame(store_high);
3811 set_ia32_op_type(store_low, ia32_AddrModeD);
3812 set_ia32_op_type(store_high, ia32_AddrModeD);
3813 set_ia32_ls_mode(store_low, mode_Iu);
3814 set_ia32_ls_mode(store_high, mode_Is);
3815 add_ia32_am_offs_int(store_high, 4);
3819 sync = new_rd_Sync(dbgi, irg, block, 2, in);
3822 fild = new_rd_ia32_vfild(dbgi, irg, block, frame, noreg, sync);
3824 set_ia32_use_frame(fild);
3825 set_ia32_op_type(fild, ia32_AddrModeS);
3826 set_ia32_ls_mode(fild, mode_Ls);
3828 SET_IA32_ORIG_NODE(fild, ia32_get_old_node_name(env_cg, node));
3830 return new_r_Proj(irg, block, fild, mode_vfp, pn_ia32_vfild_res);
3833 static ir_node *gen_ia32_l_FloattoLL(ir_node *node) {
3834 ir_node *src_block = get_nodes_block(node);
3835 ir_node *block = be_transform_node(src_block);
3836 ir_graph *irg = current_ir_graph;
3837 dbg_info *dbgi = get_irn_dbg_info(node);
3838 ir_node *frame = get_irg_frame(irg);
3839 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
3840 ir_node *nomem = new_NoMem();
3841 ir_node *val = get_irn_n(node, n_ia32_l_FloattoLL_val);
3842 ir_node *new_val = be_transform_node(val);
3843 ir_node *fist, *mem;
3845 mem = gen_vfist(dbgi, irg, block, frame, noreg, nomem, new_val, &fist);
3846 SET_IA32_ORIG_NODE(fist, ia32_get_old_node_name(env_cg, node));
3847 set_ia32_use_frame(fist);
3848 set_ia32_op_type(fist, ia32_AddrModeD);
3849 set_ia32_ls_mode(fist, mode_Ls);
3855 * the BAD transformer.
3857 static ir_node *bad_transform(ir_node *node) {
3858 panic("No transform function for %+F available.", node);
3862 static ir_node *gen_Proj_l_FloattoLL(ir_node *node) {
3863 ir_graph *irg = current_ir_graph;
3864 ir_node *block = be_transform_node(get_nodes_block(node));
3865 ir_node *pred = get_Proj_pred(node);
3866 ir_node *new_pred = be_transform_node(pred);
3867 ir_node *frame = get_irg_frame(irg);
3868 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
3869 dbg_info *dbgi = get_irn_dbg_info(node);
3870 long pn = get_Proj_proj(node);
3875 load = new_rd_ia32_Load(dbgi, irg, block, frame, noreg, new_pred);
3876 SET_IA32_ORIG_NODE(load, ia32_get_old_node_name(env_cg, node));
3877 set_ia32_use_frame(load);
3878 set_ia32_op_type(load, ia32_AddrModeS);
3879 set_ia32_ls_mode(load, mode_Iu);
3880 /* we need a 64bit stackslot (fist stores 64bit) even though we only load
3881 * 32 bit from it with this particular load */
3882 attr = get_ia32_attr(load);
3883 attr->data.need_64bit_stackent = 1;
3885 if (pn == pn_ia32_l_FloattoLL_res_high) {
3886 add_ia32_am_offs_int(load, 4);
3888 assert(pn == pn_ia32_l_FloattoLL_res_low);
3891 proj = new_r_Proj(irg, block, load, mode_Iu, pn_ia32_Load_res);
3897 * Transform the Projs of an AddSP.
3899 static ir_node *gen_Proj_be_AddSP(ir_node *node) {
3900 ir_node *block = be_transform_node(get_nodes_block(node));
3901 ir_node *pred = get_Proj_pred(node);
3902 ir_node *new_pred = be_transform_node(pred);
3903 ir_graph *irg = current_ir_graph;
3904 dbg_info *dbgi = get_irn_dbg_info(node);
3905 long proj = get_Proj_proj(node);
3907 if (proj == pn_be_AddSP_sp) {
3908 ir_node *res = new_rd_Proj(dbgi, irg, block, new_pred, mode_Iu,
3909 pn_ia32_SubSP_stack);
3910 arch_set_irn_register(env_cg->arch_env, res, &ia32_gp_regs[REG_ESP]);
3912 } else if(proj == pn_be_AddSP_res) {
3913 return new_rd_Proj(dbgi, irg, block, new_pred, mode_Iu,
3914 pn_ia32_SubSP_addr);
3915 } else if (proj == pn_be_AddSP_M) {
3916 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_SubSP_M);
3920 return new_rd_Unknown(irg, get_irn_mode(node));
3924 * Transform the Projs of a SubSP.
3926 static ir_node *gen_Proj_be_SubSP(ir_node *node) {
3927 ir_node *block = be_transform_node(get_nodes_block(node));
3928 ir_node *pred = get_Proj_pred(node);
3929 ir_node *new_pred = be_transform_node(pred);
3930 ir_graph *irg = current_ir_graph;
3931 dbg_info *dbgi = get_irn_dbg_info(node);
3932 long proj = get_Proj_proj(node);
3934 if (proj == pn_be_SubSP_sp) {
3935 ir_node *res = new_rd_Proj(dbgi, irg, block, new_pred, mode_Iu,
3936 pn_ia32_AddSP_stack);
3937 arch_set_irn_register(env_cg->arch_env, res, &ia32_gp_regs[REG_ESP]);
3939 } else if (proj == pn_be_SubSP_M) {
3940 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_AddSP_M);
3944 return new_rd_Unknown(irg, get_irn_mode(node));
3948 * Transform and renumber the Projs from a Load.
3950 static ir_node *gen_Proj_Load(ir_node *node) {
3952 ir_node *block = be_transform_node(get_nodes_block(node));
3953 ir_node *pred = get_Proj_pred(node);
3954 ir_graph *irg = current_ir_graph;
3955 dbg_info *dbgi = get_irn_dbg_info(node);
3956 long proj = get_Proj_proj(node);
3958 /* loads might be part of source address mode matches, so we don't
3959 * transform the ProjMs yet (with the exception of loads whose result is
3962 if (is_Load(pred) && proj == pn_Load_M && get_irn_n_edges(pred) > 1) {
3965 /* this is needed, because sometimes we have loops that are only
3966 reachable through the ProjM */
3967 be_enqueue_preds(node);
3968 /* do it in 2 steps, to silence firm verifier */
3969 res = new_rd_Proj(dbgi, irg, block, pred, mode_M, pn_Load_M);
3970 set_Proj_proj(res, pn_ia32_mem);
3974 /* renumber the proj */
3975 new_pred = be_transform_node(pred);
3976 if (is_ia32_Load(new_pred)) {
3979 return new_rd_Proj(dbgi, irg, block, new_pred, mode_Iu, pn_ia32_Load_res);
3981 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_Load_M);
3982 case pn_Load_X_regular:
3983 return new_rd_Jmp(dbgi, irg, block);
3984 case pn_Load_X_except:
3985 /* This Load might raise an exception. Mark it. */
3986 set_ia32_exc_label(new_pred, 1);
3987 return new_rd_Proj(dbgi, irg, block, new_pred, mode_X, pn_ia32_Load_X_exc);
3991 } else if (is_ia32_Conv_I2I(new_pred) ||
3992 is_ia32_Conv_I2I8Bit(new_pred)) {
3993 set_irn_mode(new_pred, mode_T);
3994 if (proj == pn_Load_res) {
3995 return new_rd_Proj(dbgi, irg, block, new_pred, mode_Iu, pn_ia32_res);
3996 } else if (proj == pn_Load_M) {
3997 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_mem);
3999 } else if (is_ia32_xLoad(new_pred)) {
4002 return new_rd_Proj(dbgi, irg, block, new_pred, mode_xmm, pn_ia32_xLoad_res);
4004 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_xLoad_M);
4005 case pn_Load_X_regular:
4006 return new_rd_Jmp(dbgi, irg, block);
4007 case pn_Load_X_except:
4008 /* This Load might raise an exception. Mark it. */
4009 set_ia32_exc_label(new_pred, 1);
4010 return new_rd_Proj(dbgi, irg, block, new_pred, mode_X, pn_ia32_xLoad_X_exc);
4014 } else if (is_ia32_vfld(new_pred)) {
4017 return new_rd_Proj(dbgi, irg, block, new_pred, mode_vfp, pn_ia32_vfld_res);
4019 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_vfld_M);
4020 case pn_Load_X_regular:
4021 return new_rd_Jmp(dbgi, irg, block);
4022 case pn_Load_X_except:
4023 /* This Load might raise an exception. Mark it. */
4024 set_ia32_exc_label(new_pred, 1);
4025 return new_rd_Proj(dbgi, irg, block, new_pred, mode_X, pn_ia32_xLoad_X_exc);
4030 /* can happen for ProJMs when source address mode happened for the
4033 /* however it should not be the result proj, as that would mean the
4034 load had multiple users and should not have been used for
4036 if (proj != pn_Load_M) {
4037 panic("internal error: transformed node not a Load");
4039 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, 1);
4043 return new_rd_Unknown(irg, get_irn_mode(node));
4047 * Transform and renumber the Projs from a DivMod like instruction.
4049 static ir_node *gen_Proj_DivMod(ir_node *node) {
4050 ir_node *block = be_transform_node(get_nodes_block(node));
4051 ir_node *pred = get_Proj_pred(node);
4052 ir_node *new_pred = be_transform_node(pred);
4053 ir_graph *irg = current_ir_graph;
4054 dbg_info *dbgi = get_irn_dbg_info(node);
4055 ir_mode *mode = get_irn_mode(node);
4056 long proj = get_Proj_proj(node);
4058 assert(is_ia32_Div(new_pred) || is_ia32_IDiv(new_pred));
4060 switch (get_irn_opcode(pred)) {
4064 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_Div_M);
4066 return new_rd_Proj(dbgi, irg, block, new_pred, mode_Iu, pn_ia32_Div_div_res);
4067 case pn_Div_X_regular:
4068 return new_rd_Jmp(dbgi, irg, block);
4069 case pn_Div_X_except:
4070 set_ia32_exc_label(new_pred, 1);
4071 return new_rd_Proj(dbgi, irg, block, new_pred, mode_X, pn_ia32_Div_X_exc);
4079 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_Div_M);
4081 return new_rd_Proj(dbgi, irg, block, new_pred, mode_Iu, pn_ia32_Div_mod_res);
4082 case pn_Mod_X_except:
4083 set_ia32_exc_label(new_pred, 1);
4084 return new_rd_Proj(dbgi, irg, block, new_pred, mode_X, pn_ia32_Div_X_exc);
4092 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_Div_M);
4093 case pn_DivMod_res_div:
4094 return new_rd_Proj(dbgi, irg, block, new_pred, mode_Iu, pn_ia32_Div_div_res);
4095 case pn_DivMod_res_mod:
4096 return new_rd_Proj(dbgi, irg, block, new_pred, mode_Iu, pn_ia32_Div_mod_res);
4097 case pn_DivMod_X_regular:
4098 return new_rd_Jmp(dbgi, irg, block);
4099 case pn_DivMod_X_except:
4100 set_ia32_exc_label(new_pred, 1);
4101 return new_rd_Proj(dbgi, irg, block, new_pred, mode_X, pn_ia32_Div_X_exc);
4111 return new_rd_Unknown(irg, mode);
4115 * Transform and renumber the Projs from a CopyB.
4117 static ir_node *gen_Proj_CopyB(ir_node *node) {
4118 ir_node *block = be_transform_node(get_nodes_block(node));
4119 ir_node *pred = get_Proj_pred(node);
4120 ir_node *new_pred = be_transform_node(pred);
4121 ir_graph *irg = current_ir_graph;
4122 dbg_info *dbgi = get_irn_dbg_info(node);
4123 ir_mode *mode = get_irn_mode(node);
4124 long proj = get_Proj_proj(node);
4127 case pn_CopyB_M_regular:
4128 if (is_ia32_CopyB_i(new_pred)) {
4129 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_CopyB_i_M);
4130 } else if (is_ia32_CopyB(new_pred)) {
4131 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_CopyB_M);
4139 return new_rd_Unknown(irg, mode);
4143 * Transform and renumber the Projs from a Quot.
4145 static ir_node *gen_Proj_Quot(ir_node *node) {
4146 ir_node *block = be_transform_node(get_nodes_block(node));
4147 ir_node *pred = get_Proj_pred(node);
4148 ir_node *new_pred = be_transform_node(pred);
4149 ir_graph *irg = current_ir_graph;
4150 dbg_info *dbgi = get_irn_dbg_info(node);
4151 ir_mode *mode = get_irn_mode(node);
4152 long proj = get_Proj_proj(node);
4156 if (is_ia32_xDiv(new_pred)) {
4157 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_xDiv_M);
4158 } else if (is_ia32_vfdiv(new_pred)) {
4159 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_vfdiv_M);
4163 if (is_ia32_xDiv(new_pred)) {
4164 return new_rd_Proj(dbgi, irg, block, new_pred, mode_xmm, pn_ia32_xDiv_res);
4165 } else if (is_ia32_vfdiv(new_pred)) {
4166 return new_rd_Proj(dbgi, irg, block, new_pred, mode_vfp, pn_ia32_vfdiv_res);
4169 case pn_Quot_X_regular:
4170 case pn_Quot_X_except:
4176 return new_rd_Unknown(irg, mode);
4179 static ir_node *gen_be_Call(ir_node *node) {
4180 ir_node *res = be_duplicate_node(node);
4183 be_node_add_flags(res, -1, arch_irn_flags_modify_flags);
4185 /* Run the x87 simulator if the call returns a float value */
4186 call_tp = be_Call_get_type(node);
4187 if (get_method_n_ress(call_tp) > 0) {
4188 ir_type *const res_type = get_method_res_type(call_tp, 0);
4189 ir_mode *const res_mode = get_type_mode(res_type);
4191 if (res_mode != NULL && mode_is_float(res_mode)) {
4192 env_cg->do_x87_sim = 1;
4199 static ir_node *gen_be_IncSP(ir_node *node) {
4200 ir_node *res = be_duplicate_node(node);
4201 be_node_add_flags(res, -1, arch_irn_flags_modify_flags);
4207 * Transform the Projs from a be_Call.
4209 static ir_node *gen_Proj_be_Call(ir_node *node) {
4210 ir_node *block = be_transform_node(get_nodes_block(node));
4211 ir_node *call = get_Proj_pred(node);
4212 ir_node *new_call = be_transform_node(call);
4213 ir_graph *irg = current_ir_graph;
4214 dbg_info *dbgi = get_irn_dbg_info(node);
4215 ir_type *method_type = be_Call_get_type(call);
4216 int n_res = get_method_n_ress(method_type);
4217 long proj = get_Proj_proj(node);
4218 ir_mode *mode = get_irn_mode(node);
4220 const arch_register_class_t *cls;
4222 /* The following is kinda tricky: If we're using SSE, then we have to
4223 * move the result value of the call in floating point registers to an
4224 * xmm register, we therefore construct a GetST0 -> xLoad sequence
4225 * after the call, we have to make sure to correctly make the
4226 * MemProj and the result Proj use these 2 nodes
4228 if (proj == pn_be_Call_M_regular) {
4229 // get new node for result, are we doing the sse load/store hack?
4230 ir_node *call_res = be_get_Proj_for_pn(call, pn_be_Call_first_res);
4231 ir_node *call_res_new;
4232 ir_node *call_res_pred = NULL;
4234 if (call_res != NULL) {
4235 call_res_new = be_transform_node(call_res);
4236 call_res_pred = get_Proj_pred(call_res_new);
4239 if (call_res_pred == NULL || be_is_Call(call_res_pred)) {
4240 return new_rd_Proj(dbgi, irg, block, new_call, mode_M,
4241 pn_be_Call_M_regular);
4243 assert(is_ia32_xLoad(call_res_pred));
4244 return new_rd_Proj(dbgi, irg, block, call_res_pred, mode_M,
4248 if (ia32_cg_config.use_sse2 && proj >= pn_be_Call_first_res
4249 && proj < (pn_be_Call_first_res + n_res) && mode_is_float(mode)) {
4251 ir_node *frame = get_irg_frame(irg);
4252 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
4254 ir_node *call_mem = be_get_Proj_for_pn(call, pn_be_Call_M_regular);
4257 /* in case there is no memory output: create one to serialize the copy
4259 call_mem = new_rd_Proj(dbgi, irg, block, new_call, mode_M,
4260 pn_be_Call_M_regular);
4261 call_res = new_rd_Proj(dbgi, irg, block, new_call, mode,
4262 pn_be_Call_first_res);
4264 /* store st(0) onto stack */
4265 fstp = new_rd_ia32_vfst(dbgi, irg, block, frame, noreg, call_mem,
4267 set_ia32_op_type(fstp, ia32_AddrModeD);
4268 set_ia32_use_frame(fstp);
4270 /* load into SSE register */
4271 sse_load = new_rd_ia32_xLoad(dbgi, irg, block, frame, noreg, fstp,
4273 set_ia32_op_type(sse_load, ia32_AddrModeS);
4274 set_ia32_use_frame(sse_load);
4276 sse_load = new_rd_Proj(dbgi, irg, block, sse_load, mode_xmm,
4282 /* transform call modes */
4283 if (mode_is_data(mode)) {
4284 cls = arch_get_irn_reg_class(env_cg->arch_env, node, -1);
4288 return new_rd_Proj(dbgi, irg, block, new_call, mode, proj);
4292 * Transform the Projs from a Cmp.
4294 static ir_node *gen_Proj_Cmp(ir_node *node)
4296 /* this probably means not all mode_b nodes were lowered... */
4297 panic("trying to directly transform Proj_Cmp %+F (mode_b not lowered?)",
4302 * Transform the Projs from a Bound.
4304 static ir_node *gen_Proj_Bound(ir_node *node)
4306 ir_node *new_node, *block;
4307 ir_node *pred = get_Proj_pred(node);
4309 switch (get_Proj_proj(node)) {
4311 return be_transform_node(get_Bound_mem(pred));
4312 case pn_Bound_X_regular:
4313 new_node = be_transform_node(pred);
4314 block = get_nodes_block(new_node);
4315 return new_r_Proj(current_ir_graph, block, new_node, mode_X, pn_ia32_Jcc_true);
4316 case pn_Bound_X_except:
4317 new_node = be_transform_node(pred);
4318 block = get_nodes_block(new_node);
4319 return new_r_Proj(current_ir_graph, block, new_node, mode_X, pn_ia32_Jcc_false);
4321 return be_transform_node(get_Bound_index(pred));
4323 panic("unsupported Proj from Bound");
4327 static ir_node *gen_Proj_ASM(ir_node *node)
4333 if (get_irn_mode(node) != mode_M)
4334 return be_duplicate_node(node);
4336 pred = get_Proj_pred(node);
4337 new_pred = be_transform_node(pred);
4338 block = get_nodes_block(new_pred);
4339 return new_r_Proj(current_ir_graph, block, new_pred, mode_M,
4340 get_ia32_n_res(new_pred) + 1);
4344 * Transform and potentially renumber Proj nodes.
4346 static ir_node *gen_Proj(ir_node *node) {
4347 ir_node *pred = get_Proj_pred(node);
4350 switch (get_irn_opcode(pred)) {
4352 proj = get_Proj_proj(node);
4353 if (proj == pn_Store_M) {
4354 return be_transform_node(pred);
4357 return new_r_Bad(current_ir_graph);
4360 return gen_Proj_Load(node);
4362 return gen_Proj_ASM(node);
4366 return gen_Proj_DivMod(node);
4368 return gen_Proj_CopyB(node);
4370 return gen_Proj_Quot(node);
4372 return gen_Proj_be_SubSP(node);
4374 return gen_Proj_be_AddSP(node);
4376 return gen_Proj_be_Call(node);
4378 return gen_Proj_Cmp(node);
4380 return gen_Proj_Bound(node);
4382 proj = get_Proj_proj(node);
4383 if (proj == pn_Start_X_initial_exec) {
4384 ir_node *block = get_nodes_block(pred);
4385 dbg_info *dbgi = get_irn_dbg_info(node);
4388 /* we exchange the ProjX with a jump */
4389 block = be_transform_node(block);
4390 jump = new_rd_Jmp(dbgi, current_ir_graph, block);
4393 if (node == be_get_old_anchor(anchor_tls)) {
4394 return gen_Proj_tls(node);
4399 if (is_ia32_l_FloattoLL(pred)) {
4400 return gen_Proj_l_FloattoLL(node);
4402 } else if (!is_ia32_irn(pred)) { // Quick hack for SIMD optimization
4406 ir_mode *mode = get_irn_mode(node);
4407 if (ia32_mode_needs_gp_reg(mode)) {
4408 ir_node *new_pred = be_transform_node(pred);
4409 ir_node *block = be_transform_node(get_nodes_block(node));
4410 ir_node *new_proj = new_r_Proj(current_ir_graph, block, new_pred,
4411 mode_Iu, get_Proj_proj(node));
4412 #ifdef DEBUG_libfirm
4413 new_proj->node_nr = node->node_nr;
4419 return be_duplicate_node(node);
4423 * Enters all transform functions into the generic pointer
4425 static void register_transformers(void)
4429 /* first clear the generic function pointer for all ops */
4430 clear_irp_opcodes_generic_func();
4432 #define GEN(a) { be_transform_func *func = gen_##a; op_##a->ops.generic = (op_func) func; }
4433 #define BAD(a) op_##a->ops.generic = (op_func)bad_transform
4471 /* transform ops from intrinsic lowering */
4483 GEN(ia32_l_LLtoFloat);
4484 GEN(ia32_l_FloattoLL);
4490 /* we should never see these nodes */
4505 /* handle generic backend nodes */
4514 op_Mulh = get_op_Mulh();
4523 * Pre-transform all unknown and noreg nodes.
4525 static void ia32_pretransform_node(void *arch_cg) {
4526 ia32_code_gen_t *cg = arch_cg;
4528 cg->unknown_gp = be_pre_transform_node(cg->unknown_gp);
4529 cg->unknown_vfp = be_pre_transform_node(cg->unknown_vfp);
4530 cg->unknown_xmm = be_pre_transform_node(cg->unknown_xmm);
4531 cg->noreg_gp = be_pre_transform_node(cg->noreg_gp);
4532 cg->noreg_vfp = be_pre_transform_node(cg->noreg_vfp);
4533 cg->noreg_xmm = be_pre_transform_node(cg->noreg_xmm);
4538 * Walker, checks if all ia32 nodes producing more than one result have their
4539 * Projs, otherwise creates new Projs and keeps them using a be_Keep node.
4541 static void add_missing_keep_walker(ir_node *node, void *data)
4544 unsigned found_projs = 0;
4545 const ir_edge_t *edge;
4546 ir_mode *mode = get_irn_mode(node);
4551 if(!is_ia32_irn(node))
4554 n_outs = get_ia32_n_res(node);
4557 if(is_ia32_SwitchJmp(node))
4560 assert(n_outs < (int) sizeof(unsigned) * 8);
4561 foreach_out_edge(node, edge) {
4562 ir_node *proj = get_edge_src_irn(edge);
4563 int pn = get_Proj_proj(proj);
4565 if (get_irn_mode(proj) == mode_M)
4568 assert(pn < n_outs);
4569 found_projs |= 1 << pn;
4573 /* are keeps missing? */
4575 for(i = 0; i < n_outs; ++i) {
4578 const arch_register_req_t *req;
4579 const arch_register_class_t *cls;
4581 if(found_projs & (1 << i)) {
4585 req = get_ia32_out_req(node, i);
4590 if(cls == &ia32_reg_classes[CLASS_ia32_flags]) {
4594 block = get_nodes_block(node);
4595 in[0] = new_r_Proj(current_ir_graph, block, node,
4596 arch_register_class_mode(cls), i);
4597 if(last_keep != NULL) {
4598 be_Keep_add_node(last_keep, cls, in[0]);
4600 last_keep = be_new_Keep(cls, current_ir_graph, block, 1, in);
4601 if(sched_is_scheduled(node)) {
4602 sched_add_after(node, last_keep);
4609 * Adds missing keeps to nodes. Adds missing Proj nodes for unused outputs
4612 void ia32_add_missing_keeps(ia32_code_gen_t *cg)
4614 ir_graph *irg = be_get_birg_irg(cg->birg);
4615 irg_walk_graph(irg, add_missing_keep_walker, NULL, NULL);
4618 /* do the transformation */
4619 void ia32_transform_graph(ia32_code_gen_t *cg) {
4621 ir_graph *irg = cg->irg;
4623 register_transformers();
4625 initial_fpcw = NULL;
4627 BE_TIMER_PUSH(t_heights);
4628 heights = heights_new(irg);
4629 BE_TIMER_POP(t_heights);
4630 ia32_calculate_non_address_mode_nodes(cg->birg);
4632 /* the transform phase is not safe for CSE (yet) because several nodes get
4633 * attributes set after their creation */
4634 cse_last = get_opt_cse();
4637 be_transform_graph(cg->birg, ia32_pretransform_node, cg);
4639 set_opt_cse(cse_last);
4641 ia32_free_non_address_mode_nodes();
4642 heights_free(heights);
4646 void ia32_init_transform(void)
4648 FIRM_DBG_REGISTER(dbg, "firm.be.ia32.transform");