2 * Copyright (C) 1995-2007 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 ia32-Firm.
23 * @author Christian Wuerdig, Matthias Braun
34 #include "irgraph_t.h"
39 #include "iredges_t.h"
50 #include "../benode_t.h"
51 #include "../besched.h"
53 #include "../beutil.h"
54 #include "../beirg_t.h"
55 #include "../betranshlp.h"
57 #include "bearch_ia32_t.h"
58 #include "ia32_nodes_attr.h"
59 #include "ia32_transform.h"
60 #include "ia32_new_nodes.h"
61 #include "ia32_map_regs.h"
62 #include "ia32_dbg_stat.h"
63 #include "ia32_optimize.h"
64 #include "ia32_util.h"
66 #include "gen_ia32_regalloc_if.h"
68 #define SFP_SIGN "0x80000000"
69 #define DFP_SIGN "0x8000000000000000"
70 #define SFP_ABS "0x7FFFFFFF"
71 #define DFP_ABS "0x7FFFFFFFFFFFFFFF"
73 #define TP_SFP_SIGN "ia32_sfp_sign"
74 #define TP_DFP_SIGN "ia32_dfp_sign"
75 #define TP_SFP_ABS "ia32_sfp_abs"
76 #define TP_DFP_ABS "ia32_dfp_abs"
78 #define ENT_SFP_SIGN "IA32_SFP_SIGN"
79 #define ENT_DFP_SIGN "IA32_DFP_SIGN"
80 #define ENT_SFP_ABS "IA32_SFP_ABS"
81 #define ENT_DFP_ABS "IA32_DFP_ABS"
83 #define mode_vfp (ia32_reg_classes[CLASS_ia32_vfp].mode)
84 #define mode_xmm (ia32_reg_classes[CLASS_ia32_xmm].mode)
86 DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
88 /** hold the current code generator during transformation */
89 static ia32_code_gen_t *env_cg = NULL;
91 extern ir_op *get_op_Mulh(void);
93 typedef ir_node *construct_binop_func(dbg_info *db, ir_graph *irg,
94 ir_node *block, ir_node *base, ir_node *index, ir_node *op1,
95 ir_node *op2, ir_node *mem);
97 typedef ir_node *construct_binop_float_func(dbg_info *db, ir_graph *irg,
98 ir_node *block, ir_node *base, ir_node *index, ir_node *op1,
99 ir_node *op2, ir_node *mem, ir_node *fpcw);
101 typedef ir_node *construct_unop_func(dbg_info *db, ir_graph *irg,
102 ir_node *block, ir_node *base, ir_node *index, ir_node *op,
105 /****************************************************************************************************
107 * | | | | / _| | | (_)
108 * _ __ ___ __| | ___ | |_ _ __ __ _ _ __ ___| |_ ___ _ __ _ __ ___ __ _| |_ _ ___ _ __
109 * | '_ \ / _ \ / _` |/ _ \ | __| '__/ _` | '_ \/ __| _/ _ \| '__| '_ ` _ \ / _` | __| |/ _ \| '_ \
110 * | | | | (_) | (_| | __/ | |_| | | (_| | | | \__ \ || (_) | | | | | | | | (_| | |_| | (_) | | | |
111 * |_| |_|\___/ \__,_|\___| \__|_| \__,_|_| |_|___/_| \___/|_| |_| |_| |_|\__,_|\__|_|\___/|_| |_|
113 ****************************************************************************************************/
115 static ir_node *try_create_Immediate(ir_node *node,
116 char immediate_constraint_type);
118 static ir_node *create_immediate_or_transform(ir_node *node,
119 char immediate_constraint_type);
122 * Return true if a mode can be stored in the GP register set
124 static INLINE int mode_needs_gp_reg(ir_mode *mode) {
125 if(mode == mode_fpcw)
127 return mode_is_int(mode) || mode_is_reference(mode) || mode == mode_b;
131 * Returns 1 if irn is a Const representing 0, 0 otherwise
133 static INLINE int is_ia32_Const_0(ir_node *irn) {
134 return is_ia32_irn(irn) && is_ia32_Const(irn) && get_ia32_immop_type(irn) == ia32_ImmConst
135 && tarval_is_null(get_ia32_Immop_tarval(irn));
139 * Returns 1 if irn is a Const representing 1, 0 otherwise
141 static INLINE int is_ia32_Const_1(ir_node *irn) {
142 return is_ia32_irn(irn) && is_ia32_Const(irn) && get_ia32_immop_type(irn) == ia32_ImmConst
143 && tarval_is_one(get_ia32_Immop_tarval(irn));
147 * Collects all Projs of a node into the node array. Index is the projnum.
148 * BEWARE: The caller has to assure the appropriate array size!
150 static void ia32_collect_Projs(ir_node *irn, ir_node **projs, int size) {
151 const ir_edge_t *edge;
152 assert(get_irn_mode(irn) == mode_T && "need mode_T");
154 memset(projs, 0, size * sizeof(projs[0]));
156 foreach_out_edge(irn, edge) {
157 ir_node *proj = get_edge_src_irn(edge);
158 int proj_proj = get_Proj_proj(proj);
159 assert(proj_proj < size);
160 projs[proj_proj] = proj;
165 * Renumbers the proj having pn_old in the array tp pn_new
166 * and removes the proj from the array.
168 static INLINE void ia32_renumber_Proj(ir_node **projs, long pn_old, long pn_new) {
169 fprintf(stderr, "Warning: renumber_Proj used!\n");
171 set_Proj_proj(projs[pn_old], pn_new);
172 projs[pn_old] = NULL;
177 * creates a unique ident by adding a number to a tag
179 * @param tag the tag string, must contain a %d if a number
182 static ident *unique_id(const char *tag)
184 static unsigned id = 0;
187 snprintf(str, sizeof(str), tag, ++id);
188 return new_id_from_str(str);
192 * Get a primitive type for a mode.
194 static ir_type *get_prim_type(pmap *types, ir_mode *mode)
196 pmap_entry *e = pmap_find(types, mode);
201 snprintf(buf, sizeof(buf), "prim_type_%s", get_mode_name(mode));
202 res = new_type_primitive(new_id_from_str(buf), mode);
203 set_type_alignment_bytes(res, 16);
204 pmap_insert(types, mode, res);
212 * Get an entity that is initialized with a tarval
214 static ir_entity *get_entity_for_tv(ia32_code_gen_t *cg, ir_node *cnst)
216 tarval *tv = get_Const_tarval(cnst);
217 pmap_entry *e = pmap_find(cg->isa->tv_ent, tv);
222 ir_mode *mode = get_irn_mode(cnst);
223 ir_type *tp = get_Const_type(cnst);
224 if (tp == firm_unknown_type)
225 tp = get_prim_type(cg->isa->types, mode);
227 res = new_entity(get_glob_type(), unique_id(".LC%u"), tp);
229 set_entity_ld_ident(res, get_entity_ident(res));
230 set_entity_visibility(res, visibility_local);
231 set_entity_variability(res, variability_constant);
232 set_entity_allocation(res, allocation_static);
234 /* we create a new entity here: It's initialization must resist on the
236 rem = current_ir_graph;
237 current_ir_graph = get_const_code_irg();
238 set_atomic_ent_value(res, new_Const_type(tv, tp));
239 current_ir_graph = rem;
241 pmap_insert(cg->isa->tv_ent, tv, res);
249 static int is_Const_0(ir_node *node) {
253 return classify_Const(node) == CNST_NULL;
256 static int is_Const_1(ir_node *node) {
260 return classify_Const(node) == CNST_ONE;
264 * Transforms a Const.
266 static ir_node *gen_Const(ir_node *node) {
267 ir_graph *irg = current_ir_graph;
268 ir_node *old_block = get_nodes_block(node);
269 ir_node *block = be_transform_node(old_block);
270 dbg_info *dbgi = get_irn_dbg_info(node);
271 ir_mode *mode = get_irn_mode(node);
273 if (mode_is_float(mode)) {
275 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
276 ir_node *nomem = new_NoMem();
280 if (! USE_SSE2(env_cg)) {
281 cnst_classify_t clss = classify_Const(node);
283 if (clss == CNST_NULL) {
284 load = new_rd_ia32_vfldz(dbgi, irg, block);
286 } else if (clss == CNST_ONE) {
287 load = new_rd_ia32_vfld1(dbgi, irg, block);
290 floatent = get_entity_for_tv(env_cg, node);
292 load = new_rd_ia32_vfld(dbgi, irg, block, noreg, noreg, nomem, mode);
293 set_ia32_op_type(load, ia32_AddrModeS);
294 set_ia32_am_flavour(load, ia32_am_N);
295 set_ia32_am_sc(load, floatent);
296 set_ia32_flags(load, get_ia32_flags(load) | arch_irn_flags_rematerializable);
297 res = new_r_Proj(irg, block, load, mode_vfp, pn_ia32_vfld_res);
299 set_ia32_ls_mode(load, mode);
301 floatent = get_entity_for_tv(env_cg, node);
303 load = new_rd_ia32_xLoad(dbgi, irg, block, noreg, noreg, nomem);
304 set_ia32_op_type(load, ia32_AddrModeS);
305 set_ia32_am_flavour(load, ia32_am_N);
306 set_ia32_am_sc(load, floatent);
307 set_ia32_ls_mode(load, mode);
308 set_ia32_flags(load, get_ia32_flags(load) | arch_irn_flags_rematerializable);
310 res = new_r_Proj(irg, block, load, mode_xmm, pn_ia32_xLoad_res);
313 SET_IA32_ORIG_NODE(load, ia32_get_old_node_name(env_cg, node));
315 /* Const Nodes before the initial IncSP are a bad idea, because
316 * they could be spilled and we have no SP ready at that point yet.
317 * So add a dependency to the initial frame pointer calculation to
318 * avoid that situation.
320 if (get_irg_start_block(irg) == block) {
321 add_irn_dep(load, get_irg_frame(irg));
324 SET_IA32_ORIG_NODE(load, ia32_get_old_node_name(env_cg, node));
327 ir_node *cnst = new_rd_ia32_Const(dbgi, irg, block);
330 if (get_irg_start_block(irg) == block) {
331 add_irn_dep(cnst, get_irg_frame(irg));
334 set_ia32_Const_attr(cnst, node);
335 SET_IA32_ORIG_NODE(cnst, ia32_get_old_node_name(env_cg, node));
340 return new_r_Bad(irg);
344 * Transforms a SymConst.
346 static ir_node *gen_SymConst(ir_node *node) {
347 ir_graph *irg = current_ir_graph;
348 ir_node *old_block = get_nodes_block(node);
349 ir_node *block = be_transform_node(old_block);
350 dbg_info *dbgi = get_irn_dbg_info(node);
351 ir_mode *mode = get_irn_mode(node);
354 if (mode_is_float(mode)) {
355 if (USE_SSE2(env_cg))
356 cnst = new_rd_ia32_xConst(dbgi, irg, block);
358 cnst = new_rd_ia32_vfConst(dbgi, irg, block);
359 //set_ia32_ls_mode(cnst, mode);
360 set_ia32_ls_mode(cnst, mode_E);
362 cnst = new_rd_ia32_Const(dbgi, irg, block);
365 /* Const Nodes before the initial IncSP are a bad idea, because
366 * they could be spilled and we have no SP ready at that point yet
368 if (get_irg_start_block(irg) == block) {
369 add_irn_dep(cnst, get_irg_frame(irg));
372 set_ia32_Const_attr(cnst, node);
373 SET_IA32_ORIG_NODE(cnst, ia32_get_old_node_name(env_cg, node));
378 /* Generates an entity for a known FP const (used for FP Neg + Abs) */
379 ir_entity *ia32_gen_fp_known_const(ia32_known_const_t kct) {
380 static const struct {
382 const char *ent_name;
383 const char *cnst_str;
384 } names [ia32_known_const_max] = {
385 { TP_SFP_SIGN, ENT_SFP_SIGN, SFP_SIGN }, /* ia32_SSIGN */
386 { TP_DFP_SIGN, ENT_DFP_SIGN, DFP_SIGN }, /* ia32_DSIGN */
387 { TP_SFP_ABS, ENT_SFP_ABS, SFP_ABS }, /* ia32_SABS */
388 { TP_DFP_ABS, ENT_DFP_ABS, DFP_ABS } /* ia32_DABS */
390 static ir_entity *ent_cache[ia32_known_const_max];
392 const char *tp_name, *ent_name, *cnst_str;
400 ent_name = names[kct].ent_name;
401 if (! ent_cache[kct]) {
402 tp_name = names[kct].tp_name;
403 cnst_str = names[kct].cnst_str;
405 mode = kct == ia32_SSIGN || kct == ia32_SABS ? mode_Iu : mode_Lu;
407 tv = new_tarval_from_str(cnst_str, strlen(cnst_str), mode);
408 tp = new_type_primitive(new_id_from_str(tp_name), mode);
409 ent = new_entity(get_glob_type(), new_id_from_str(ent_name), tp);
411 set_entity_ld_ident(ent, get_entity_ident(ent));
412 set_entity_visibility(ent, visibility_local);
413 set_entity_variability(ent, variability_constant);
414 set_entity_allocation(ent, allocation_static);
416 /* we create a new entity here: It's initialization must resist on the
418 rem = current_ir_graph;
419 current_ir_graph = get_const_code_irg();
420 cnst = new_Const(mode, tv);
421 current_ir_graph = rem;
423 set_atomic_ent_value(ent, cnst);
425 /* cache the entry */
426 ent_cache[kct] = ent;
429 return ent_cache[kct];
434 * Prints the old node name on cg obst and returns a pointer to it.
436 const char *ia32_get_old_node_name(ia32_code_gen_t *cg, ir_node *irn) {
437 ia32_isa_t *isa = (ia32_isa_t *)cg->arch_env->isa;
439 lc_eoprintf(firm_get_arg_env(), isa->name_obst, "%+F", irn);
440 obstack_1grow(isa->name_obst, 0);
441 return obstack_finish(isa->name_obst);
445 /* determine if one operator is an Imm */
446 static ir_node *get_immediate_op(ir_node *op1, ir_node *op2) {
448 return is_ia32_Cnst(op1) ? op1 : (is_ia32_Cnst(op2) ? op2 : NULL);
450 return is_ia32_Cnst(op2) ? op2 : NULL;
454 /* determine if one operator is not an Imm */
455 static ir_node *get_expr_op(ir_node *op1, ir_node *op2) {
456 return !is_ia32_Cnst(op1) ? op1 : (!is_ia32_Cnst(op2) ? op2 : NULL);
459 static void fold_immediate(ir_node *node, int in1, int in2) {
463 if (!(env_cg->opt & IA32_OPT_IMMOPS))
466 left = get_irn_n(node, in1);
467 right = get_irn_n(node, in2);
468 if (! is_ia32_Cnst(right) && is_ia32_Cnst(left)) {
469 /* we can only set right operand to immediate */
470 if(!is_ia32_commutative(node))
472 /* exchange left/right */
473 set_irn_n(node, in1, right);
474 set_irn_n(node, in2, ia32_get_admissible_noreg(env_cg, node, in2));
475 copy_ia32_Immop_attr(node, left);
476 } else if(is_ia32_Cnst(right)) {
477 set_irn_n(node, in2, ia32_get_admissible_noreg(env_cg, node, in2));
478 copy_ia32_Immop_attr(node, right);
483 clear_ia32_commutative(node);
484 set_ia32_am_support(node, get_ia32_am_support(node) & ~ia32_am_Source,
485 get_ia32_am_arity(node));
489 * Construct a standard binary operation, set AM and immediate if required.
491 * @param op1 The first operand
492 * @param op2 The second operand
493 * @param func The node constructor function
494 * @return The constructed ia32 node.
496 static ir_node *gen_binop(ir_node *node, ir_node *op1, ir_node *op2,
497 construct_binop_func *func, int commutative)
499 ir_node *block = be_transform_node(get_nodes_block(node));
500 ir_graph *irg = current_ir_graph;
501 dbg_info *dbgi = get_irn_dbg_info(node);
502 ir_node *noreg_gp = ia32_new_NoReg_gp(env_cg);
503 ir_node *nomem = new_NoMem();
506 ir_node *new_op1 = be_transform_node(op1);
507 ir_node *new_op2 = create_immediate_or_transform(op2, 0);
508 if (is_ia32_Immediate(new_op2)) {
512 new_node = func(dbgi, irg, block, noreg_gp, noreg_gp, new_op1, new_op2, nomem);
513 if (func == new_rd_ia32_IMul) {
514 set_ia32_am_support(new_node, ia32_am_Source, ia32_am_binary);
516 set_ia32_am_support(new_node, ia32_am_Full, ia32_am_binary);
519 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
521 set_ia32_commutative(new_node);
528 * Construct a standard binary operation, set AM and immediate if required.
530 * @param op1 The first operand
531 * @param op2 The second operand
532 * @param func The node constructor function
533 * @return The constructed ia32 node.
535 static ir_node *gen_binop_sse_float(ir_node *node, ir_node *op1, ir_node *op2,
536 construct_binop_func *func)
538 ir_node *block = be_transform_node(get_nodes_block(node));
539 ir_node *new_op1 = be_transform_node(op1);
540 ir_node *new_op2 = be_transform_node(op2);
541 ir_node *new_node = NULL;
542 dbg_info *dbgi = get_irn_dbg_info(node);
543 ir_graph *irg = current_ir_graph;
544 ir_mode *mode = get_irn_mode(node);
545 ir_node *noreg_gp = ia32_new_NoReg_gp(env_cg);
546 ir_node *nomem = new_NoMem();
548 new_node = func(dbgi, irg, block, noreg_gp, noreg_gp, new_op1, new_op2,
550 set_ia32_am_support(new_node, ia32_am_Source, ia32_am_binary);
551 if (is_op_commutative(get_irn_op(node))) {
552 set_ia32_commutative(new_node);
554 set_ia32_ls_mode(new_node, mode);
556 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
562 * Construct a standard binary operation, set AM and immediate if required.
564 * @param op1 The first operand
565 * @param op2 The second operand
566 * @param func The node constructor function
567 * @return The constructed ia32 node.
569 static ir_node *gen_binop_x87_float(ir_node *node, ir_node *op1, ir_node *op2,
570 construct_binop_float_func *func)
572 ir_node *block = be_transform_node(get_nodes_block(node));
573 ir_node *new_op1 = be_transform_node(op1);
574 ir_node *new_op2 = be_transform_node(op2);
575 ir_node *new_node = NULL;
576 dbg_info *dbgi = get_irn_dbg_info(node);
577 ir_graph *irg = current_ir_graph;
578 ir_node *noreg_gp = ia32_new_NoReg_gp(env_cg);
579 ir_node *nomem = new_NoMem();
580 ir_node *fpcw = be_abi_get_ignore_irn(env_cg->birg->abi,
581 &ia32_fp_cw_regs[REG_FPCW]);
583 new_node = func(dbgi, irg, block, noreg_gp, noreg_gp, new_op1, new_op2,
585 set_ia32_am_support(new_node, ia32_am_Source, ia32_am_binary);
586 if (is_op_commutative(get_irn_op(node))) {
587 set_ia32_commutative(new_node);
590 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
596 * Construct a shift/rotate binary operation, sets AM and immediate if required.
598 * @param op1 The first operand
599 * @param op2 The second operand
600 * @param func The node constructor function
601 * @return The constructed ia32 node.
603 static ir_node *gen_shift_binop(ir_node *node, ir_node *op1, ir_node *op2,
604 construct_binop_func *func)
606 ir_node *block = be_transform_node(get_nodes_block(node));
607 ir_node *new_op1 = be_transform_node(op1);
609 ir_node *new_op = NULL;
610 dbg_info *dbgi = get_irn_dbg_info(node);
611 ir_graph *irg = current_ir_graph;
612 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
613 ir_node *nomem = new_NoMem();
615 assert(! mode_is_float(get_irn_mode(node))
616 && "Shift/Rotate with float not supported");
618 new_op2 = create_immediate_or_transform(op2, 'N');
620 new_op = func(dbgi, irg, block, noreg, noreg, new_op1, new_op2, nomem);
623 set_ia32_am_support(new_op, ia32_am_Dest, ia32_am_binary);
625 SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env_cg, node));
627 set_ia32_emit_cl(new_op);
634 * Construct a standard unary operation, set AM and immediate if required.
636 * @param op The operand
637 * @param func The node constructor function
638 * @return The constructed ia32 node.
640 static ir_node *gen_unop(ir_node *node, ir_node *op, construct_unop_func *func)
642 ir_node *block = be_transform_node(get_nodes_block(node));
643 ir_node *new_op = be_transform_node(op);
644 ir_node *new_node = NULL;
645 ir_graph *irg = current_ir_graph;
646 dbg_info *dbgi = get_irn_dbg_info(node);
647 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
648 ir_node *nomem = new_NoMem();
650 new_node = func(dbgi, irg, block, noreg, noreg, new_op, nomem);
651 DB((dbg, LEVEL_1, "INT unop ..."));
652 set_ia32_am_support(new_node, ia32_am_Dest, ia32_am_unary);
654 SET_IA32_ORIG_NODE(new_node, ia32_get_old_node_name(env_cg, node));
660 * Creates an ia32 Add.
662 * @return the created ia32 Add node
664 static ir_node *gen_Add(ir_node *node) {
665 ir_node *block = be_transform_node(get_nodes_block(node));
666 ir_node *op1 = get_Add_left(node);
667 ir_node *new_op1 = be_transform_node(op1);
668 ir_node *op2 = get_Add_right(node);
669 ir_node *new_op2 = be_transform_node(op2);
670 ir_node *new_op = NULL;
671 ir_graph *irg = current_ir_graph;
672 dbg_info *dbgi = get_irn_dbg_info(node);
673 ir_mode *mode = get_irn_mode(node);
674 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
675 ir_node *nomem = new_NoMem();
676 ir_node *expr_op, *imm_op;
678 /* Check if immediate optimization is on and */
679 /* if it's an operation with immediate. */
680 imm_op = (env_cg->opt & IA32_OPT_IMMOPS) ? get_immediate_op(new_op1, new_op2) : NULL;
681 expr_op = get_expr_op(new_op1, new_op2);
683 assert((expr_op || imm_op) && "invalid operands");
685 if (mode_is_float(mode)) {
686 if (USE_SSE2(env_cg))
687 return gen_binop_sse_float(node, op1, op2, new_rd_ia32_xAdd);
689 return gen_binop_x87_float(node, op1, op2, new_rd_ia32_vfadd);
694 ia32_immop_type_t tp1 = get_ia32_immop_type(new_op1);
695 ia32_immop_type_t tp2 = get_ia32_immop_type(new_op2);
697 /* No expr_op means, that we have two const - one symconst and */
698 /* one tarval or another symconst - because this case is not */
699 /* covered by constant folding */
700 /* We need to check for: */
701 /* 1) symconst + const -> becomes a LEA */
702 /* 2) symconst + symconst -> becomes a const + LEA as the elf */
703 /* linker doesn't support two symconsts */
705 if (tp1 == ia32_ImmSymConst && tp2 == ia32_ImmSymConst) {
706 /* this is the 2nd case */
707 new_op = new_rd_ia32_Lea(dbgi, irg, block, new_op1, noreg);
708 set_ia32_am_sc(new_op, get_ia32_Immop_symconst(new_op2));
709 set_ia32_am_flavour(new_op, ia32_am_B);
710 set_ia32_op_type(new_op, ia32_AddrModeS);
712 DBG_OPT_LEA3(new_op1, new_op2, node, new_op);
713 } else if (tp1 == ia32_ImmSymConst) {
714 tarval *tv = get_ia32_Immop_tarval(new_op2);
715 long offs = get_tarval_long(tv);
717 new_op = new_rd_ia32_Lea(dbgi, irg, block, noreg, noreg);
718 add_irn_dep(new_op, get_irg_frame(irg));
719 DBG_OPT_LEA3(new_op1, new_op2, node, new_op);
721 set_ia32_am_sc(new_op, get_ia32_Immop_symconst(new_op1));
722 add_ia32_am_offs_int(new_op, offs);
723 set_ia32_am_flavour(new_op, ia32_am_OB);
724 set_ia32_op_type(new_op, ia32_AddrModeS);
725 } else if (tp2 == ia32_ImmSymConst) {
726 tarval *tv = get_ia32_Immop_tarval(new_op1);
727 long offs = get_tarval_long(tv);
729 new_op = new_rd_ia32_Lea(dbgi, irg, block, noreg, noreg);
730 add_irn_dep(new_op, get_irg_frame(irg));
731 DBG_OPT_LEA3(new_op1, new_op2, node, new_op);
733 add_ia32_am_offs_int(new_op, offs);
734 set_ia32_am_sc(new_op, get_ia32_Immop_symconst(new_op2));
735 set_ia32_am_flavour(new_op, ia32_am_OB);
736 set_ia32_op_type(new_op, ia32_AddrModeS);
738 tarval *tv1 = get_ia32_Immop_tarval(new_op1);
739 tarval *tv2 = get_ia32_Immop_tarval(new_op2);
740 tarval *restv = tarval_add(tv1, tv2);
742 DEBUG_ONLY(ir_fprintf(stderr, "Warning: add with 2 consts not folded: %+F\n", node));
744 new_op = new_rd_ia32_Const(dbgi, irg, block);
745 set_ia32_Const_tarval(new_op, restv);
746 DBG_OPT_LEA3(new_op1, new_op2, node, new_op);
749 SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env_cg, node));
752 if ((env_cg->opt & IA32_OPT_INCDEC) && get_ia32_immop_type(imm_op) == ia32_ImmConst) {
753 tarval_classification_t class_tv, class_negtv;
754 tarval *tv = get_ia32_Immop_tarval(imm_op);
756 /* optimize tarvals */
757 class_tv = classify_tarval(tv);
758 class_negtv = classify_tarval(tarval_neg(tv));
760 if (class_tv == TV_CLASSIFY_ONE) { /* + 1 == INC */
761 DB((dbg, LEVEL_2, "Add(1) to Inc ... "));
762 new_op = new_rd_ia32_Inc(dbgi, irg, block, noreg, noreg, expr_op, nomem);
763 SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env_cg, node));
765 } else if (class_tv == TV_CLASSIFY_ALL_ONE || class_negtv == TV_CLASSIFY_ONE) { /* + (-1) == DEC */
766 DB((dbg, LEVEL_2, "Add(-1) to Dec ... "));
767 new_op = new_rd_ia32_Dec(dbgi, irg, block, noreg, noreg, expr_op, nomem);
768 SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env_cg, node));
774 /* This is a normal add */
775 new_op = new_rd_ia32_Add(dbgi, irg, block, noreg, noreg, new_op1, new_op2, nomem);
778 set_ia32_am_support(new_op, ia32_am_Full, ia32_am_binary);
779 set_ia32_commutative(new_op);
781 fold_immediate(new_op, 2, 3);
783 SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env_cg, node));
789 * Creates an ia32 Mul.
791 * @return the created ia32 Mul node
793 static ir_node *gen_Mul(ir_node *node) {
794 ir_node *op1 = get_Mul_left(node);
795 ir_node *op2 = get_Mul_right(node);
796 ir_mode *mode = get_irn_mode(node);
798 if (mode_is_float(mode)) {
799 if (USE_SSE2(env_cg))
800 return gen_binop_sse_float(node, op1, op2, new_rd_ia32_xMul);
802 return gen_binop_x87_float(node, op1, op2, new_rd_ia32_vfmul);
806 for the lower 32bit of the result it doesn't matter whether we use
807 signed or unsigned multiplication so we use IMul as it has fewer
810 return gen_binop(node, op1, op2, new_rd_ia32_IMul, 1);
814 * Creates an ia32 Mulh.
815 * Note: Mul produces a 64Bit result and Mulh returns the upper 32 bit of
816 * this result while Mul returns the lower 32 bit.
818 * @return the created ia32 Mulh node
820 static ir_node *gen_Mulh(ir_node *node) {
821 ir_node *block = be_transform_node(get_nodes_block(node));
822 ir_node *op1 = get_irn_n(node, 0);
823 ir_node *new_op1 = be_transform_node(op1);
824 ir_node *op2 = get_irn_n(node, 1);
825 ir_node *new_op2 = be_transform_node(op2);
826 ir_graph *irg = current_ir_graph;
827 dbg_info *dbgi = get_irn_dbg_info(node);
828 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
829 ir_mode *mode = get_irn_mode(node);
830 ir_node *proj_EDX, *res;
832 assert(!mode_is_float(mode) && "Mulh with float not supported");
833 if (mode_is_signed(mode)) {
834 res = new_rd_ia32_IMul1OP(dbgi, irg, block, noreg, noreg, new_op1,
835 new_op2, new_NoMem());
837 res = new_rd_ia32_Mul(dbgi, irg, block, noreg, noreg, new_op1, new_op2,
841 set_ia32_commutative(res);
842 set_ia32_am_support(res, ia32_am_Source, ia32_am_binary);
844 proj_EDX = new_rd_Proj(dbgi, irg, block, res, mode_Iu, pn_EDX);
852 * Creates an ia32 And.
854 * @return The created ia32 And node
856 static ir_node *gen_And(ir_node *node) {
857 ir_node *op1 = get_And_left(node);
858 ir_node *op2 = get_And_right(node);
860 assert (! mode_is_float(get_irn_mode(node)));
861 return gen_binop(node, op1, op2, new_rd_ia32_And, 1);
867 * Creates an ia32 Or.
869 * @return The created ia32 Or node
871 static ir_node *gen_Or(ir_node *node) {
872 ir_node *op1 = get_Or_left(node);
873 ir_node *op2 = get_Or_right(node);
875 assert (! mode_is_float(get_irn_mode(node)));
876 return gen_binop(node, op1, op2, new_rd_ia32_Or, 1);
882 * Creates an ia32 Eor.
884 * @return The created ia32 Eor node
886 static ir_node *gen_Eor(ir_node *node) {
887 ir_node *op1 = get_Eor_left(node);
888 ir_node *op2 = get_Eor_right(node);
890 assert(! mode_is_float(get_irn_mode(node)));
891 return gen_binop(node, op1, op2, new_rd_ia32_Xor, 1);
896 * Creates an ia32 Sub.
898 * @return The created ia32 Sub node
900 static ir_node *gen_Sub(ir_node *node) {
901 ir_node *block = be_transform_node(get_nodes_block(node));
902 ir_node *op1 = get_Sub_left(node);
903 ir_node *new_op1 = be_transform_node(op1);
904 ir_node *op2 = get_Sub_right(node);
905 ir_node *new_op2 = be_transform_node(op2);
906 ir_node *new_op = NULL;
907 ir_graph *irg = current_ir_graph;
908 dbg_info *dbgi = get_irn_dbg_info(node);
909 ir_mode *mode = get_irn_mode(node);
910 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
911 ir_node *nomem = new_NoMem();
912 ir_node *expr_op, *imm_op;
914 /* Check if immediate optimization is on and */
915 /* if it's an operation with immediate. */
916 imm_op = (env_cg->opt & IA32_OPT_IMMOPS) ? get_immediate_op(NULL, new_op2) : NULL;
917 expr_op = get_expr_op(new_op1, new_op2);
919 assert((expr_op || imm_op) && "invalid operands");
921 if (mode_is_float(mode)) {
922 if (USE_SSE2(env_cg))
923 return gen_binop_sse_float(node, op1, op2, new_rd_ia32_xSub);
925 return gen_binop_x87_float(node, op1, op2, new_rd_ia32_vfsub);
930 ia32_immop_type_t tp1 = get_ia32_immop_type(new_op1);
931 ia32_immop_type_t tp2 = get_ia32_immop_type(new_op2);
933 /* No expr_op means, that we have two const - one symconst and */
934 /* one tarval or another symconst - because this case is not */
935 /* covered by constant folding */
936 /* We need to check for: */
937 /* 1) symconst - const -> becomes a LEA */
938 /* 2) symconst - symconst -> becomes a const - LEA as the elf */
939 /* linker doesn't support two symconsts */
940 if (tp1 == ia32_ImmSymConst && tp2 == ia32_ImmSymConst) {
941 /* this is the 2nd case */
942 new_op = new_rd_ia32_Lea(dbgi, irg, block, new_op1, noreg);
943 set_ia32_am_sc(new_op, get_ia32_Immop_symconst(op2));
944 set_ia32_am_sc_sign(new_op);
945 set_ia32_am_flavour(new_op, ia32_am_B);
947 DBG_OPT_LEA3(op1, op2, node, new_op);
948 } else if (tp1 == ia32_ImmSymConst) {
949 tarval *tv = get_ia32_Immop_tarval(new_op2);
950 long offs = get_tarval_long(tv);
952 new_op = new_rd_ia32_Lea(dbgi, irg, block, noreg, noreg);
953 add_irn_dep(new_op, get_irg_frame(irg));
954 DBG_OPT_LEA3(op1, op2, node, new_op);
956 set_ia32_am_sc(new_op, get_ia32_Immop_symconst(new_op1));
957 add_ia32_am_offs_int(new_op, -offs);
958 set_ia32_am_flavour(new_op, ia32_am_OB);
959 set_ia32_op_type(new_op, ia32_AddrModeS);
960 } else if (tp2 == ia32_ImmSymConst) {
961 tarval *tv = get_ia32_Immop_tarval(new_op1);
962 long offs = get_tarval_long(tv);
964 new_op = new_rd_ia32_Lea(dbgi, irg, block, noreg, noreg);
965 add_irn_dep(new_op, get_irg_frame(irg));
966 DBG_OPT_LEA3(op1, op2, node, new_op);
968 add_ia32_am_offs_int(new_op, offs);
969 set_ia32_am_sc(new_op, get_ia32_Immop_symconst(new_op2));
970 set_ia32_am_sc_sign(new_op);
971 set_ia32_am_flavour(new_op, ia32_am_OB);
972 set_ia32_op_type(new_op, ia32_AddrModeS);
974 tarval *tv1 = get_ia32_Immop_tarval(new_op1);
975 tarval *tv2 = get_ia32_Immop_tarval(new_op2);
976 tarval *restv = tarval_sub(tv1, tv2);
978 DEBUG_ONLY(ir_fprintf(stderr, "Warning: sub with 2 consts not folded: %+F\n", node));
980 new_op = new_rd_ia32_Const(dbgi, irg, block);
981 set_ia32_Const_tarval(new_op, restv);
982 DBG_OPT_LEA3(new_op1, new_op2, node, new_op);
985 SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env_cg, node));
988 if ((env_cg->opt & IA32_OPT_INCDEC) && get_ia32_immop_type(imm_op) == ia32_ImmConst) {
989 tarval_classification_t class_tv, class_negtv;
990 tarval *tv = get_ia32_Immop_tarval(imm_op);
992 /* optimize tarvals */
993 class_tv = classify_tarval(tv);
994 class_negtv = classify_tarval(tarval_neg(tv));
996 if (class_tv == TV_CLASSIFY_ONE) {
997 DB((dbg, LEVEL_2, "Sub(1) to Dec ... "));
998 new_op = new_rd_ia32_Dec(dbgi, irg, block, noreg, noreg, expr_op, nomem);
999 SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env_cg, node));
1001 } else if (class_tv == TV_CLASSIFY_ALL_ONE || class_negtv == TV_CLASSIFY_ONE) {
1002 DB((dbg, LEVEL_2, "Sub(-1) to Inc ... "));
1003 new_op = new_rd_ia32_Inc(dbgi, irg, block, noreg, noreg, expr_op, nomem);
1004 SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env_cg, node));
1010 /* This is a normal sub */
1011 new_op = new_rd_ia32_Sub(dbgi, irg, block, noreg, noreg, new_op1, new_op2, nomem);
1013 /* set AM support */
1014 set_ia32_am_support(new_op, ia32_am_Full, ia32_am_binary);
1016 fold_immediate(new_op, 2, 3);
1018 SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env_cg, node));
1026 * Generates an ia32 DivMod with additional infrastructure for the
1027 * register allocator if needed.
1029 * @param dividend -no comment- :)
1030 * @param divisor -no comment- :)
1031 * @param dm_flav flavour_Div/Mod/DivMod
1032 * @return The created ia32 DivMod node
1034 static ir_node *generate_DivMod(ir_node *node, ir_node *dividend,
1035 ir_node *divisor, ia32_op_flavour_t dm_flav)
1037 ir_node *block = be_transform_node(get_nodes_block(node));
1038 ir_node *new_dividend = be_transform_node(dividend);
1039 ir_node *new_divisor = be_transform_node(divisor);
1040 ir_graph *irg = current_ir_graph;
1041 dbg_info *dbgi = get_irn_dbg_info(node);
1042 ir_mode *mode = get_irn_mode(node);
1043 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
1044 ir_node *res, *proj_div, *proj_mod;
1045 ir_node *sign_extension;
1046 ir_node *mem, *new_mem;
1047 ir_node *projs[pn_DivMod_max];
1050 ia32_collect_Projs(node, projs, pn_DivMod_max);
1052 proj_div = proj_mod = NULL;
1056 mem = get_Div_mem(node);
1057 mode = get_Div_resmode(node);
1058 proj_div = be_get_Proj_for_pn(node, pn_Div_res);
1059 has_exc = be_get_Proj_for_pn(node, pn_Div_X_except) != NULL;
1062 mem = get_Mod_mem(node);
1063 mode = get_Mod_resmode(node);
1064 proj_mod = be_get_Proj_for_pn(node, pn_Mod_res);
1065 has_exc = be_get_Proj_for_pn(node, pn_Mod_X_except) != NULL;
1067 case flavour_DivMod:
1068 mem = get_DivMod_mem(node);
1069 mode = get_DivMod_resmode(node);
1070 proj_div = be_get_Proj_for_pn(node, pn_DivMod_res_div);
1071 proj_mod = be_get_Proj_for_pn(node, pn_DivMod_res_mod);
1072 has_exc = be_get_Proj_for_pn(node, pn_DivMod_X_except) != NULL;
1075 panic("invalid divmod flavour!");
1077 new_mem = be_transform_node(mem);
1079 if (mode_is_signed(mode)) {
1080 /* in signed mode, we need to sign extend the dividend */
1081 sign_extension = new_rd_ia32_Cltd(dbgi, irg, block, new_dividend);
1083 sign_extension = new_rd_ia32_Const(dbgi, irg, block);
1084 set_ia32_Immop_tarval(sign_extension, get_tarval_null(mode_Iu));
1086 add_irn_dep(sign_extension, get_irg_frame(irg));
1089 if (mode_is_signed(mode)) {
1090 res = new_rd_ia32_IDiv(dbgi, irg, block, noreg, noreg, new_dividend,
1091 sign_extension, new_divisor, new_mem, dm_flav);
1093 res = new_rd_ia32_Div(dbgi, irg, block, noreg, noreg, new_dividend,
1094 sign_extension, new_divisor, new_mem, dm_flav);
1097 set_ia32_exc_label(res, has_exc);
1098 set_irn_pinned(res, get_irn_pinned(node));
1099 set_ia32_am_support(res, ia32_am_Source, ia32_am_binary);
1101 SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(env_cg, node));
1108 * Wrapper for generate_DivMod. Sets flavour_Mod.
1111 static ir_node *gen_Mod(ir_node *node) {
1112 return generate_DivMod(node, get_Mod_left(node),
1113 get_Mod_right(node), flavour_Mod);
1117 * Wrapper for generate_DivMod. Sets flavour_Div.
1120 static ir_node *gen_Div(ir_node *node) {
1121 return generate_DivMod(node, get_Div_left(node),
1122 get_Div_right(node), flavour_Div);
1126 * Wrapper for generate_DivMod. Sets flavour_DivMod.
1128 static ir_node *gen_DivMod(ir_node *node) {
1129 return generate_DivMod(node, get_DivMod_left(node),
1130 get_DivMod_right(node), flavour_DivMod);
1136 * Creates an ia32 floating Div.
1138 * @return The created ia32 xDiv node
1140 static ir_node *gen_Quot(ir_node *node) {
1141 ir_node *block = be_transform_node(get_nodes_block(node));
1142 ir_node *op1 = get_Quot_left(node);
1143 ir_node *new_op1 = be_transform_node(op1);
1144 ir_node *op2 = get_Quot_right(node);
1145 ir_node *new_op2 = be_transform_node(op2);
1146 ir_graph *irg = current_ir_graph;
1147 dbg_info *dbgi = get_irn_dbg_info(node);
1148 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
1149 ir_node *nomem = new_rd_NoMem(current_ir_graph);
1152 if (USE_SSE2(env_cg)) {
1153 ir_mode *mode = get_irn_mode(op1);
1154 if (is_ia32_xConst(new_op2)) {
1155 new_op = new_rd_ia32_xDiv(dbgi, irg, block, noreg, noreg, new_op1, noreg, nomem);
1156 set_ia32_am_support(new_op, ia32_am_None, ia32_am_arity_none);
1157 copy_ia32_Immop_attr(new_op, new_op2);
1159 new_op = new_rd_ia32_xDiv(dbgi, irg, block, noreg, noreg, new_op1, new_op2, nomem);
1160 // Matze: disabled for now, spillslot coalescer fails
1161 set_ia32_am_support(new_op, ia32_am_Source, ia32_am_binary);
1163 set_ia32_ls_mode(new_op, mode);
1165 ir_node *fpcw = be_abi_get_ignore_irn(env_cg->birg->abi,
1166 &ia32_fp_cw_regs[REG_FPCW]);
1167 new_op = new_rd_ia32_vfdiv(dbgi, irg, block, noreg, noreg, new_op1,
1168 new_op2, nomem, fpcw);
1169 // Matze: disabled for now (spillslot coalescer fails)
1170 set_ia32_am_support(new_op, ia32_am_Source, ia32_am_binary);
1172 SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env_cg, node));
1178 * Creates an ia32 Shl.
1180 * @return The created ia32 Shl node
1182 static ir_node *gen_Shl(ir_node *node) {
1183 return gen_shift_binop(node, get_Shl_left(node), get_Shl_right(node),
1190 * Creates an ia32 Shr.
1192 * @return The created ia32 Shr node
1194 static ir_node *gen_Shr(ir_node *node) {
1195 return gen_shift_binop(node, get_Shr_left(node),
1196 get_Shr_right(node), new_rd_ia32_Shr);
1202 * Creates an ia32 Sar.
1204 * @return The created ia32 Shrs node
1206 static ir_node *gen_Shrs(ir_node *node) {
1207 ir_node *left = get_Shrs_left(node);
1208 ir_node *right = get_Shrs_right(node);
1209 if(is_Const(right) && get_irn_mode(left) == mode_Is) {
1210 tarval *tv = get_Const_tarval(right);
1211 long val = get_tarval_long(tv);
1213 /* this is a sign extension */
1214 ir_graph *irg = current_ir_graph;
1215 dbg_info *dbgi = get_irn_dbg_info(node);
1216 ir_node *block = be_transform_node(get_nodes_block(node));
1218 ir_node *new_op = be_transform_node(op);
1220 return new_rd_ia32_Cltd(dbgi, irg, block, new_op);
1224 return gen_shift_binop(node, left, right, new_rd_ia32_Sar);
1230 * Creates an ia32 RotL.
1232 * @param op1 The first operator
1233 * @param op2 The second operator
1234 * @return The created ia32 RotL node
1236 static ir_node *gen_RotL(ir_node *node,
1237 ir_node *op1, ir_node *op2) {
1238 return gen_shift_binop(node, op1, op2, new_rd_ia32_Rol);
1244 * Creates an ia32 RotR.
1245 * NOTE: There is no RotR with immediate because this would always be a RotL
1246 * "imm-mode_size_bits" which can be pre-calculated.
1248 * @param op1 The first operator
1249 * @param op2 The second operator
1250 * @return The created ia32 RotR node
1252 static ir_node *gen_RotR(ir_node *node, ir_node *op1,
1254 return gen_shift_binop(node, op1, op2, new_rd_ia32_Ror);
1260 * Creates an ia32 RotR or RotL (depending on the found pattern).
1262 * @return The created ia32 RotL or RotR node
1264 static ir_node *gen_Rot(ir_node *node) {
1265 ir_node *rotate = NULL;
1266 ir_node *op1 = get_Rot_left(node);
1267 ir_node *op2 = get_Rot_right(node);
1269 /* Firm has only Rot (which is a RotL), so we are looking for a right (op2)
1270 operand "-e+mode_size_bits" (it's an already modified "mode_size_bits-e",
1271 that means we can create a RotR instead of an Add and a RotL */
1273 if (get_irn_op(op2) == op_Add) {
1275 ir_node *left = get_Add_left(add);
1276 ir_node *right = get_Add_right(add);
1277 if (is_Const(right)) {
1278 tarval *tv = get_Const_tarval(right);
1279 ir_mode *mode = get_irn_mode(node);
1280 long bits = get_mode_size_bits(mode);
1282 if (get_irn_op(left) == op_Minus &&
1283 tarval_is_long(tv) &&
1284 get_tarval_long(tv) == bits)
1286 DB((dbg, LEVEL_1, "RotL into RotR ... "));
1287 rotate = gen_RotR(node, op1, get_Minus_op(left));
1292 if (rotate == NULL) {
1293 rotate = gen_RotL(node, op1, op2);
1302 * Transforms a Minus node.
1304 * @param op The Minus operand
1305 * @return The created ia32 Minus node
1307 ir_node *gen_Minus_ex(ir_node *node, ir_node *op) {
1308 ir_node *block = be_transform_node(get_nodes_block(node));
1309 ir_graph *irg = current_ir_graph;
1310 dbg_info *dbgi = get_irn_dbg_info(node);
1311 ir_mode *mode = get_irn_mode(node);
1316 if (mode_is_float(mode)) {
1317 ir_node *new_op = be_transform_node(op);
1318 if (USE_SSE2(env_cg)) {
1319 ir_node *noreg_gp = ia32_new_NoReg_gp(env_cg);
1320 ir_node *noreg_fp = ia32_new_NoReg_fp(env_cg);
1321 ir_node *nomem = new_rd_NoMem(irg);
1323 res = new_rd_ia32_xXor(dbgi, irg, block, noreg_gp, noreg_gp, new_op, noreg_fp, nomem);
1325 size = get_mode_size_bits(mode);
1326 ent = ia32_gen_fp_known_const(size == 32 ? ia32_SSIGN : ia32_DSIGN);
1328 set_ia32_am_sc(res, ent);
1329 set_ia32_op_type(res, ia32_AddrModeS);
1330 set_ia32_ls_mode(res, mode);
1332 res = new_rd_ia32_vfchs(dbgi, irg, block, new_op);
1335 res = gen_unop(node, op, new_rd_ia32_Neg);
1338 SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(env_cg, node));
1344 * Transforms a Minus node.
1346 * @return The created ia32 Minus node
1348 static ir_node *gen_Minus(ir_node *node) {
1349 return gen_Minus_ex(node, get_Minus_op(node));
1352 static ir_node *gen_bin_Not(ir_node *node)
1354 ir_graph *irg = current_ir_graph;
1355 dbg_info *dbgi = get_irn_dbg_info(node);
1356 ir_node *block = be_transform_node(get_nodes_block(node));
1357 ir_node *op = get_Not_op(node);
1358 ir_node *new_op = be_transform_node(op);
1359 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
1360 ir_node *nomem = new_NoMem();
1361 ir_node *one = new_rd_ia32_Immediate(dbgi, irg, block, NULL, 0, 1);
1362 arch_set_irn_register(env_cg->arch_env, one, &ia32_gp_regs[REG_GP_NOREG]);
1364 return new_rd_ia32_Xor(dbgi, irg, block, noreg, noreg, new_op, one, nomem);
1368 * Transforms a Not node.
1370 * @return The created ia32 Not node
1372 static ir_node *gen_Not(ir_node *node) {
1373 ir_node *op = get_Not_op(node);
1374 ir_mode *mode = get_irn_mode(node);
1376 if(mode == mode_b) {
1377 return gen_bin_Not(node);
1380 assert (! mode_is_float(get_irn_mode(node)));
1381 return gen_unop(node, op, new_rd_ia32_Not);
1387 * Transforms an Abs node.
1389 * @return The created ia32 Abs node
1391 static ir_node *gen_Abs(ir_node *node) {
1392 ir_node *block = be_transform_node(get_nodes_block(node));
1393 ir_node *op = get_Abs_op(node);
1394 ir_node *new_op = be_transform_node(op);
1395 ir_graph *irg = current_ir_graph;
1396 dbg_info *dbgi = get_irn_dbg_info(node);
1397 ir_mode *mode = get_irn_mode(node);
1398 ir_node *noreg_gp = ia32_new_NoReg_gp(env_cg);
1399 ir_node *noreg_fp = ia32_new_NoReg_fp(env_cg);
1400 ir_node *nomem = new_NoMem();
1405 if (mode_is_float(mode)) {
1406 if (USE_SSE2(env_cg)) {
1407 res = new_rd_ia32_xAnd(dbgi,irg, block, noreg_gp, noreg_gp, new_op, noreg_fp, nomem);
1409 size = get_mode_size_bits(mode);
1410 ent = ia32_gen_fp_known_const(size == 32 ? ia32_SABS : ia32_DABS);
1412 set_ia32_am_sc(res, ent);
1414 SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(env_cg, node));
1416 set_ia32_op_type(res, ia32_AddrModeS);
1417 set_ia32_ls_mode(res, mode);
1420 res = new_rd_ia32_vfabs(dbgi, irg, block, new_op);
1421 SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(env_cg, node));
1425 ir_node *sign_extension = new_rd_ia32_Cltd(dbgi, irg, block, new_op);
1426 SET_IA32_ORIG_NODE(sign_extension,
1427 ia32_get_old_node_name(env_cg, node));
1429 xor = new_rd_ia32_Xor(dbgi, irg, block, noreg_gp, noreg_gp, new_op,
1430 sign_extension, nomem);
1431 SET_IA32_ORIG_NODE(xor, ia32_get_old_node_name(env_cg, node));
1433 res = new_rd_ia32_Sub(dbgi, irg, block, noreg_gp, noreg_gp, xor,
1434 sign_extension, nomem);
1435 SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(env_cg, node));
1444 * Transforms a Load.
1446 * @return the created ia32 Load node
1448 static ir_node *gen_Load(ir_node *node) {
1449 ir_node *old_block = get_nodes_block(node);
1450 ir_node *block = be_transform_node(old_block);
1451 ir_node *ptr = get_Load_ptr(node);
1452 ir_node *new_ptr = be_transform_node(ptr);
1453 ir_node *mem = get_Load_mem(node);
1454 ir_node *new_mem = be_transform_node(mem);
1455 ir_graph *irg = current_ir_graph;
1456 dbg_info *dbgi = get_irn_dbg_info(node);
1457 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
1458 ir_mode *mode = get_Load_mode(node);
1460 ir_node *lptr = new_ptr;
1463 ia32_am_flavour_t am_flav = ia32_am_B;
1465 /* address might be a constant (symconst or absolute address) */
1466 if (is_ia32_Const(new_ptr)) {
1471 if (mode_is_float(mode)) {
1472 if (USE_SSE2(env_cg)) {
1473 new_op = new_rd_ia32_xLoad(dbgi, irg, block, lptr, noreg, new_mem);
1474 res_mode = mode_xmm;
1476 new_op = new_rd_ia32_vfld(dbgi, irg, block, lptr, noreg, new_mem, mode);
1477 res_mode = mode_vfp;
1480 new_op = new_rd_ia32_Load(dbgi, irg, block, lptr, noreg, new_mem);
1484 /* base is a constant address */
1486 if (get_ia32_immop_type(new_ptr) == ia32_ImmSymConst) {
1487 set_ia32_am_sc(new_op, get_ia32_Immop_symconst(new_ptr));
1488 am_flav = ia32_am_N;
1490 tarval *tv = get_ia32_Immop_tarval(new_ptr);
1491 long offs = get_tarval_long(tv);
1493 add_ia32_am_offs_int(new_op, offs);
1494 am_flav = ia32_am_O;
1498 set_irn_pinned(new_op, get_irn_pinned(node));
1499 set_ia32_op_type(new_op, ia32_AddrModeS);
1500 set_ia32_am_flavour(new_op, am_flav);
1501 set_ia32_ls_mode(new_op, mode);
1503 /* make sure we are scheduled behind the initial IncSP/Barrier
1504 * to avoid spills being placed before it
1506 if (block == get_irg_start_block(irg)) {
1507 add_irn_dep(new_op, get_irg_frame(irg));
1510 set_ia32_exc_label(new_op, be_get_Proj_for_pn(node, pn_Load_X_except) != NULL);
1511 SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env_cg, node));
1519 * Transforms a Store.
1521 * @return the created ia32 Store node
1523 static ir_node *gen_Store(ir_node *node) {
1524 ir_node *block = be_transform_node(get_nodes_block(node));
1525 ir_node *ptr = get_Store_ptr(node);
1526 ir_node *new_ptr = be_transform_node(ptr);
1527 ir_node *val = get_Store_value(node);
1529 ir_node *mem = get_Store_mem(node);
1530 ir_node *new_mem = be_transform_node(mem);
1531 ir_graph *irg = current_ir_graph;
1532 dbg_info *dbgi = get_irn_dbg_info(node);
1533 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
1534 ir_node *sptr = new_ptr;
1535 ir_mode *mode = get_irn_mode(val);
1538 ia32_am_flavour_t am_flav = ia32_am_B;
1540 /* address might be a constant (symconst or absolute address) */
1541 if (is_ia32_Const(new_ptr)) {
1546 if (mode_is_float(mode)) {
1547 new_val = be_transform_node(val);
1548 if (USE_SSE2(env_cg)) {
1549 new_op = new_rd_ia32_xStore(dbgi, irg, block, sptr, noreg, new_val,
1552 new_op = new_rd_ia32_vfst(dbgi, irg, block, sptr, noreg, new_val,
1556 new_val = create_immediate_or_transform(val, 0);
1558 if (get_mode_size_bits(mode) == 8) {
1559 new_op = new_rd_ia32_Store8Bit(dbgi, irg, block, sptr, noreg,
1562 new_op = new_rd_ia32_Store(dbgi, irg, block, sptr, noreg, new_val,
1567 /* base is an constant address */
1569 if (get_ia32_immop_type(new_ptr) == ia32_ImmSymConst) {
1570 set_ia32_am_sc(new_op, get_ia32_Immop_symconst(new_ptr));
1571 am_flav = ia32_am_N;
1573 tarval *tv = get_ia32_Immop_tarval(new_ptr);
1574 long offs = get_tarval_long(tv);
1576 add_ia32_am_offs_int(new_op, offs);
1577 am_flav = ia32_am_O;
1581 set_irn_pinned(new_op, get_irn_pinned(node));
1582 set_ia32_op_type(new_op, ia32_AddrModeD);
1583 set_ia32_am_flavour(new_op, am_flav);
1584 set_ia32_ls_mode(new_op, mode);
1586 set_ia32_exc_label(new_op, be_get_Proj_for_pn(node, pn_Store_X_except) != NULL);
1587 SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env_cg, node));
1592 static ir_node *try_create_TestJmp(ir_node *block, dbg_info *dbgi, long pnc,
1593 ir_node *cmp_left, ir_node *cmp_right)
1595 ir_node *new_cmp_left;
1596 ir_node *new_cmp_right;
1602 long pure_pnc = pnc & ~ia32_pn_Cmp_Unsigned;
1604 if(cmp_right != NULL && !is_Const_0(cmp_right))
1607 if(is_And(cmp_left) && (pure_pnc == pn_Cmp_Eq || pure_pnc == pn_Cmp_Lg)) {
1608 and_left = get_And_left(cmp_left);
1609 and_right = get_And_right(cmp_left);
1611 new_cmp_left = be_transform_node(and_left);
1612 new_cmp_right = create_immediate_or_transform(and_right, 0);
1614 new_cmp_left = be_transform_node(cmp_left);
1615 new_cmp_right = be_transform_node(cmp_left);
1618 noreg = ia32_new_NoReg_gp(env_cg);
1619 nomem = new_NoMem();
1621 res = new_rd_ia32_TestJmp(dbgi, current_ir_graph, block, noreg, noreg,
1622 new_cmp_left, new_cmp_right, nomem, pnc);
1623 set_ia32_am_support(res, ia32_am_Source, ia32_am_binary);
1628 static ir_node *create_Switch(ir_node *node)
1630 ir_graph *irg = current_ir_graph;
1631 dbg_info *dbgi = get_irn_dbg_info(node);
1632 ir_node *block = be_transform_node(get_nodes_block(node));
1633 ir_node *sel = get_Cond_selector(node);
1634 ir_node *new_sel = be_transform_node(sel);
1636 int switch_min = INT_MAX;
1637 const ir_edge_t *edge;
1639 /* determine the smallest switch case value */
1640 foreach_out_edge(node, edge) {
1641 ir_node *proj = get_edge_src_irn(edge);
1642 int pn = get_Proj_proj(proj);
1647 if (switch_min != 0) {
1648 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
1650 /* if smallest switch case is not 0 we need an additional sub */
1651 new_sel = new_rd_ia32_Lea(dbgi, irg, block, new_sel, noreg);
1652 add_ia32_am_offs_int(new_sel, -switch_min);
1653 set_ia32_am_flavour(new_sel, ia32_am_OB);
1654 set_ia32_op_type(new_sel, ia32_AddrModeS);
1656 SET_IA32_ORIG_NODE(new_sel, ia32_get_old_node_name(env_cg, node));
1659 res = new_rd_ia32_SwitchJmp(dbgi, irg, block, new_sel);
1660 set_ia32_pncode(res, get_Cond_defaultProj(node));
1662 SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(env_cg, node));
1668 * Transforms a Cond -> Proj[b] -> Cmp into a CondJmp, CondJmp_i or TestJmp
1670 * @return The transformed node.
1672 static ir_node *gen_Cond(ir_node *node) {
1673 ir_node *block = be_transform_node(get_nodes_block(node));
1674 ir_graph *irg = current_ir_graph;
1675 dbg_info *dbgi = get_irn_dbg_info(node);
1676 ir_node *sel = get_Cond_selector(node);
1677 ir_mode *sel_mode = get_irn_mode(sel);
1678 ir_node *res = NULL;
1679 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
1686 ir_node *nomem = new_NoMem();
1689 if (sel_mode != mode_b) {
1690 return create_Switch(node);
1693 if(!is_Proj(sel) || !is_Cmp(get_Proj_pred(sel))) {
1694 /* it's some mode_b value not a direct comparison -> create a testjmp */
1695 res = try_create_TestJmp(block, dbgi, pn_Cmp_Lg, sel, NULL);
1696 SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(env_cg, node));
1700 cmp = get_Proj_pred(sel);
1701 cmp_a = get_Cmp_left(cmp);
1702 cmp_b = get_Cmp_right(cmp);
1703 cmp_mode = get_irn_mode(cmp_a);
1704 pnc = get_Proj_proj(sel);
1705 if(mode_is_float(cmp_mode) || !mode_is_signed(cmp_mode)) {
1706 pnc |= ia32_pn_Cmp_Unsigned;
1709 if(mode_needs_gp_reg(cmp_mode)) {
1710 res = try_create_TestJmp(block, dbgi, pnc, cmp_a, cmp_b);
1712 SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(env_cg, node));
1717 new_cmp_a = be_transform_node(cmp_a);
1718 new_cmp_b = create_immediate_or_transform(cmp_b, 0);
1720 if (mode_is_float(cmp_mode)) {
1721 if (USE_SSE2(env_cg)) {
1722 res = new_rd_ia32_xCondJmp(dbgi, irg, block, noreg, noreg, cmp_a,
1724 set_ia32_commutative(res);
1725 set_ia32_am_support(res, ia32_am_Source, ia32_am_binary);
1726 set_ia32_ls_mode(res, cmp_mode);
1728 res = new_rd_ia32_vfCondJmp(dbgi, irg, block, cmp_a, cmp_b, pnc);
1729 set_ia32_commutative(res);
1732 assert(get_mode_size_bits(cmp_mode) == 32);
1733 res = new_rd_ia32_CondJmp(dbgi, irg, block, noreg, noreg,
1734 new_cmp_a, new_cmp_b, nomem, pnc);
1735 set_ia32_commutative(res);
1736 set_ia32_am_support(res, ia32_am_Source, ia32_am_binary);
1739 SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(env_cg, node));
1747 * Transforms a CopyB node.
1749 * @return The transformed node.
1751 static ir_node *gen_CopyB(ir_node *node) {
1752 ir_node *block = be_transform_node(get_nodes_block(node));
1753 ir_node *src = get_CopyB_src(node);
1754 ir_node *new_src = be_transform_node(src);
1755 ir_node *dst = get_CopyB_dst(node);
1756 ir_node *new_dst = be_transform_node(dst);
1757 ir_node *mem = get_CopyB_mem(node);
1758 ir_node *new_mem = be_transform_node(mem);
1759 ir_node *res = NULL;
1760 ir_graph *irg = current_ir_graph;
1761 dbg_info *dbgi = get_irn_dbg_info(node);
1762 int size = get_type_size_bytes(get_CopyB_type(node));
1765 /* If we have to copy more than 32 bytes, we use REP MOVSx and */
1766 /* then we need the size explicitly in ECX. */
1767 if (size >= 32 * 4) {
1768 rem = size & 0x3; /* size % 4 */
1771 res = new_rd_ia32_Const(dbgi, irg, block);
1772 add_irn_dep(res, be_abi_get_start_barrier(env_cg->birg->abi));
1773 set_ia32_Immop_tarval(res, new_tarval_from_long(size, mode_Is));
1775 res = new_rd_ia32_CopyB(dbgi, irg, block, new_dst, new_src, res, new_mem);
1776 set_ia32_Immop_tarval(res, new_tarval_from_long(rem, mode_Is));
1778 res = new_rd_ia32_CopyB_i(dbgi, irg, block, new_dst, new_src, new_mem);
1779 set_ia32_Immop_tarval(res, new_tarval_from_long(size, mode_Is));
1782 SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(env_cg, node));
1788 ir_node *gen_be_Copy(ir_node *node)
1790 ir_node *result = be_duplicate_node(node);
1791 ir_mode *mode = get_irn_mode(result);
1793 if (mode_needs_gp_reg(mode)) {
1794 set_irn_mode(result, mode_Iu);
1801 static ir_node *create_set(long pnc, ir_node *cmp_left, ir_node *cmp_right,
1802 dbg_info *dbgi, ir_node *block)
1804 ir_graph *irg = current_ir_graph;
1805 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
1806 ir_node *nomem = new_rd_NoMem(irg);
1807 ir_node *new_cmp_left;
1808 ir_node *new_cmp_right;
1811 /* can we use a test instruction? */
1812 if(cmp_right == NULL || is_Const_0(cmp_right)) {
1813 long pure_pnc = pnc & ~ia32_pn_Cmp_Unsigned;
1814 if(is_And(cmp_left) &&
1815 (pure_pnc == pn_Cmp_Eq || pure_pnc == pn_Cmp_Lg)) {
1816 ir_node *and_left = get_And_left(cmp_left);
1817 ir_node *and_right = get_And_right(cmp_left);
1819 new_cmp_left = be_transform_node(and_left);
1820 new_cmp_right = create_immediate_or_transform(and_right, 0);
1822 new_cmp_left = be_transform_node(cmp_left);
1823 new_cmp_right = be_transform_node(cmp_left);
1826 res = new_rd_ia32_TestSet(dbgi, current_ir_graph, block, noreg, noreg,
1827 new_cmp_left, new_cmp_right, nomem, pnc);
1828 set_ia32_am_support(res, ia32_am_Source, ia32_am_binary);
1833 new_cmp_left = be_transform_node(cmp_left);
1834 new_cmp_right = create_immediate_or_transform(cmp_right, 0);
1835 res = new_rd_ia32_CmpSet(dbgi, irg, block, noreg, noreg,
1836 new_cmp_left, new_cmp_right, nomem, pnc);
1841 static ir_node *create_cmov(long pnc, ir_node *cmp_left, ir_node *cmp_right,
1842 ir_node *val_true, ir_node *val_false,
1843 dbg_info *dbgi, ir_node *block)
1845 ir_graph *irg = current_ir_graph;
1846 ir_node *new_val_true = be_transform_node(val_true);
1847 ir_node *new_val_false = be_transform_node(val_false);
1848 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
1849 ir_node *nomem = new_NoMem();
1850 ir_node *new_cmp_left;
1851 ir_node *new_cmp_right;
1854 /* cmovs with unknowns are pointless... */
1855 if(is_Unknown(val_true)) {
1856 #ifdef DEBUG_libfirm
1857 ir_fprintf(stderr, "Optimisation warning: psi with unknown operand\n");
1859 return new_val_false;
1861 if(is_Unknown(val_false)) {
1862 #ifdef DEBUG_libfirm
1863 ir_fprintf(stderr, "Optimisation warning: psi with unknown operand\n");
1865 return new_val_true;
1868 /* can we use a test instruction? */
1869 if(is_Const_0(cmp_right)) {
1870 long pure_pnc = pnc & ~ia32_pn_Cmp_Unsigned;
1871 if(is_And(cmp_left) &&
1872 (pure_pnc == pn_Cmp_Eq || pure_pnc == pn_Cmp_Lg)) {
1873 ir_node *and_left = get_And_left(cmp_left);
1874 ir_node *and_right = get_And_right(cmp_left);
1876 new_cmp_left = be_transform_node(and_left);
1877 new_cmp_right = create_immediate_or_transform(and_right, 0);
1879 new_cmp_left = be_transform_node(cmp_left);
1880 new_cmp_right = be_transform_node(cmp_left);
1883 res = new_rd_ia32_TestCMov(dbgi, current_ir_graph, block, noreg, noreg,
1884 new_cmp_left, new_cmp_right, nomem,
1885 new_val_true, new_val_false, pnc);
1886 set_ia32_am_support(res, ia32_am_Source, ia32_am_binary);
1891 new_cmp_left = be_transform_node(cmp_left);
1892 new_cmp_right = create_immediate_or_transform(cmp_right, 0);
1894 res = new_rd_ia32_CmpCMov(dbgi, irg, block, noreg, noreg, new_cmp_left,
1895 new_cmp_right, nomem, new_val_true, new_val_false,
1897 set_ia32_am_support(res, ia32_am_Source, ia32_am_binary);
1904 * Transforms a Psi node into CMov.
1906 * @return The transformed node.
1908 static ir_node *gen_Psi(ir_node *node) {
1909 ir_node *psi_true = get_Psi_val(node, 0);
1910 ir_node *psi_default = get_Psi_default(node);
1911 ia32_code_gen_t *cg = env_cg;
1912 ir_node *cond = get_Psi_cond(node, 0);
1913 ir_node *block = be_transform_node(get_nodes_block(node));
1914 dbg_info *dbgi = get_irn_dbg_info(node);
1921 assert(get_Psi_n_conds(node) == 1);
1922 assert(get_irn_mode(cond) == mode_b);
1924 if(!is_Proj(cond) || !is_Cmp(get_Proj_pred(cond))) {
1925 /* a mode_b value, we have to compare it against 0 */
1927 cmp_right = new_Const_long(mode_Iu, 0);
1931 ir_node *cmp = get_Proj_pred(cond);
1933 cmp_left = get_Cmp_left(cmp);
1934 cmp_right = get_Cmp_right(cmp);
1935 cmp_mode = get_irn_mode(cmp_left);
1936 pnc = get_Proj_proj(cond);
1938 assert(!mode_is_float(cmp_mode));
1940 if (!mode_is_signed(cmp_mode)) {
1941 pnc |= ia32_pn_Cmp_Unsigned;
1945 if(is_Const_1(psi_true) && is_Const_0(psi_default)) {
1946 new_op = create_set(pnc, cmp_left, cmp_right, dbgi, block);
1947 } else if(is_Const_0(psi_true) && is_Const_1(psi_default)) {
1948 pnc = get_negated_pnc(pnc, cmp_mode);
1949 new_op = create_set(pnc, cmp_left, cmp_right, dbgi, block);
1951 new_op = create_cmov(pnc, cmp_left, cmp_right, psi_true, psi_default,
1954 SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(cg, node));
1960 * Following conversion rules apply:
1964 * 1) n bit -> m bit n > m (downscale)
1966 * 2) n bit -> m bit n == m (sign change)
1968 * 3) n bit -> m bit n < m (upscale)
1969 * a) source is signed: movsx
1970 * b) source is unsigned: and with lower bits sets
1974 * SSE(1/2) convert to float or double (cvtsi2ss/sd)
1978 * SSE(1/2) convert from float or double to 32bit int (cvtss/sd2si)
1982 * SSE(1/2) convert from float or double to double or float (cvtss/sd2sd/ss)
1983 * x87 is mode_E internally, conversions happen only at load and store
1984 * in non-strict semantic
1988 * Create a conversion from x87 state register to general purpose.
1990 static ir_node *gen_x87_fp_to_gp(ir_node *node) {
1991 ir_node *block = be_transform_node(get_nodes_block(node));
1992 ir_node *op = get_Conv_op(node);
1993 ir_node *new_op = be_transform_node(op);
1994 ia32_code_gen_t *cg = env_cg;
1995 ir_graph *irg = current_ir_graph;
1996 dbg_info *dbgi = get_irn_dbg_info(node);
1997 ir_node *noreg = ia32_new_NoReg_gp(cg);
1998 ir_node *trunc_mode = ia32_new_Fpu_truncate(cg);
1999 ir_node *fist, *load;
2002 fist = new_rd_ia32_vfist(dbgi, irg, block,
2003 get_irg_frame(irg), noreg, new_op, trunc_mode, new_NoMem());
2005 set_irn_pinned(fist, op_pin_state_floats);
2006 set_ia32_use_frame(fist);
2007 set_ia32_op_type(fist, ia32_AddrModeD);
2008 set_ia32_am_flavour(fist, ia32_am_B);
2009 set_ia32_ls_mode(fist, mode_Iu);
2010 SET_IA32_ORIG_NODE(fist, ia32_get_old_node_name(cg, node));
2013 load = new_rd_ia32_Load(dbgi, irg, block, get_irg_frame(irg), noreg, fist);
2015 set_irn_pinned(load, op_pin_state_floats);
2016 set_ia32_use_frame(load);
2017 set_ia32_op_type(load, ia32_AddrModeS);
2018 set_ia32_am_flavour(load, ia32_am_B);
2019 set_ia32_ls_mode(load, mode_Iu);
2020 SET_IA32_ORIG_NODE(load, ia32_get_old_node_name(cg, node));
2022 return new_r_Proj(irg, block, load, mode_Iu, pn_ia32_Load_res);
2025 static ir_node *create_strict_conv(ir_mode *src_mode, ir_mode *tgt_mode,
2028 ir_node *block = get_nodes_block(node);
2029 ir_graph *irg = current_ir_graph;
2030 dbg_info *dbgi = get_irn_dbg_info(node);
2031 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
2032 ir_node *nomem = new_NoMem();
2033 int src_bits = get_mode_size_bits(src_mode);
2034 int tgt_bits = get_mode_size_bits(tgt_mode);
2035 ir_node *frame = get_irg_frame(irg);
2036 ir_mode *smaller_mode;
2037 ir_node *store, *load;
2040 if(src_bits <= tgt_bits)
2041 smaller_mode = src_mode;
2043 smaller_mode = tgt_mode;
2045 store = new_rd_ia32_vfst(dbgi, irg, block, frame, noreg, node, nomem,
2047 set_ia32_use_frame(store);
2048 set_ia32_op_type(store, ia32_AddrModeD);
2049 set_ia32_am_flavour(store, ia32_am_OB);
2050 SET_IA32_ORIG_NODE(store, ia32_get_old_node_name(env_cg, node));
2052 load = new_rd_ia32_vfld(dbgi, irg, block, frame, noreg, store,
2054 set_ia32_use_frame(load);
2055 set_ia32_op_type(load, ia32_AddrModeS);
2056 set_ia32_am_flavour(load, ia32_am_OB);
2057 SET_IA32_ORIG_NODE(load, ia32_get_old_node_name(env_cg, node));
2059 res = new_r_Proj(irg, block, load, mode_E, pn_ia32_vfld_res);
2064 * Create a conversion from general purpose to x87 register
2066 static ir_node *gen_x87_gp_to_fp(ir_node *node, ir_mode *src_mode) {
2067 ir_node *block = be_transform_node(get_nodes_block(node));
2068 ir_node *op = get_Conv_op(node);
2069 ir_node *new_op = be_transform_node(op);
2070 ir_graph *irg = current_ir_graph;
2071 dbg_info *dbgi = get_irn_dbg_info(node);
2072 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
2073 ir_node *nomem = new_NoMem();
2074 ir_node *fild, *store;
2078 /* first convert to 32 bit if necessary */
2079 src_bits = get_mode_size_bits(src_mode);
2080 if (src_bits == 8) {
2081 new_op = new_rd_ia32_Conv_I2I8Bit(dbgi, irg, block, noreg, noreg, new_op, nomem);
2082 set_ia32_am_support(new_op, ia32_am_Source, ia32_am_unary);
2083 set_ia32_ls_mode(new_op, src_mode);
2084 SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env_cg, node));
2085 } else if (src_bits < 32) {
2086 new_op = new_rd_ia32_Conv_I2I(dbgi, irg, block, noreg, noreg, new_op, nomem);
2087 set_ia32_am_support(new_op, ia32_am_Source, ia32_am_unary);
2088 set_ia32_ls_mode(new_op, src_mode);
2089 SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env_cg, node));
2093 store = new_rd_ia32_Store(dbgi, irg, block, get_irg_frame(irg), noreg, new_op, nomem);
2095 set_ia32_use_frame(store);
2096 set_ia32_op_type(store, ia32_AddrModeD);
2097 set_ia32_am_flavour(store, ia32_am_OB);
2098 set_ia32_ls_mode(store, mode_Iu);
2101 fild = new_rd_ia32_vfild(dbgi, irg, block, get_irg_frame(irg), noreg, store);
2103 set_ia32_use_frame(fild);
2104 set_ia32_op_type(fild, ia32_AddrModeS);
2105 set_ia32_am_flavour(fild, ia32_am_OB);
2106 set_ia32_ls_mode(fild, mode_Iu);
2108 res = new_r_Proj(irg, block, fild, mode_vfp, pn_ia32_vfild_res);
2110 if(get_irg_fp_model(irg) & fp_explicit_rounding) {
2111 res = create_strict_conv(mode_E, get_irn_mode(node), res);
2118 * Transforms a Conv node.
2120 * @return The created ia32 Conv node
2122 static ir_node *gen_Conv(ir_node *node) {
2123 ir_node *block = be_transform_node(get_nodes_block(node));
2124 ir_node *op = get_Conv_op(node);
2125 ir_node *new_op = be_transform_node(op);
2126 ir_graph *irg = current_ir_graph;
2127 dbg_info *dbgi = get_irn_dbg_info(node);
2128 ir_mode *src_mode = get_irn_mode(op);
2129 ir_mode *tgt_mode = get_irn_mode(node);
2130 int src_bits = get_mode_size_bits(src_mode);
2131 int tgt_bits = get_mode_size_bits(tgt_mode);
2132 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
2133 ir_node *nomem = new_rd_NoMem(irg);
2136 if (src_mode == mode_b) {
2137 assert(mode_is_int(tgt_mode));
2138 /* nothing to do, we already model bools as 0/1 ints */
2142 if (src_mode == tgt_mode) {
2143 if (get_Conv_strict(node)) {
2144 if (USE_SSE2(env_cg)) {
2145 /* when we are in SSE mode, we can kill all strict no-op conversion */
2149 /* this should be optimized already, but who knows... */
2150 DEBUG_ONLY(ir_fprintf(stderr, "Debug warning: conv %+F is pointless\n", node));
2151 DB((dbg, LEVEL_1, "killed Conv(mode, mode) ..."));
2156 if (mode_is_float(src_mode)) {
2157 /* we convert from float ... */
2158 if (mode_is_float(tgt_mode)) {
2159 if(src_mode == mode_E && tgt_mode == mode_D
2160 && !get_Conv_strict(node)) {
2161 DB((dbg, LEVEL_1, "killed Conv(mode, mode) ..."));
2166 if (USE_SSE2(env_cg)) {
2167 DB((dbg, LEVEL_1, "create Conv(float, float) ..."));
2168 res = new_rd_ia32_Conv_FP2FP(dbgi, irg, block, noreg, noreg, new_op, nomem);
2169 set_ia32_ls_mode(res, tgt_mode);
2171 // Matze: TODO what about strict convs?
2172 if(get_Conv_strict(node)) {
2173 res = create_strict_conv(src_mode, tgt_mode, new_op);
2174 SET_IA32_ORIG_NODE(get_Proj_pred(res), ia32_get_old_node_name(env_cg, node));
2177 DB((dbg, LEVEL_1, "killed Conv(float, float) ..."));
2182 DB((dbg, LEVEL_1, "create Conv(float, int) ..."));
2183 if (USE_SSE2(env_cg)) {
2184 res = new_rd_ia32_Conv_FP2I(dbgi, irg, block, noreg, noreg, new_op, nomem);
2185 set_ia32_ls_mode(res, src_mode);
2187 return gen_x87_fp_to_gp(node);
2191 /* we convert from int ... */
2192 if (mode_is_float(tgt_mode)) {
2194 DB((dbg, LEVEL_1, "create Conv(int, float) ..."));
2195 if (USE_SSE2(env_cg)) {
2196 res = new_rd_ia32_Conv_I2FP(dbgi, irg, block, noreg, noreg, new_op, nomem);
2197 set_ia32_ls_mode(res, tgt_mode);
2198 if(src_bits == 32) {
2199 set_ia32_am_support(res, ia32_am_Source, ia32_am_unary);
2202 return gen_x87_gp_to_fp(node, src_mode);
2204 } else if(tgt_mode == mode_b) {
2207 res = create_set(pn_Cmp_Lg, op, NULL, dbgi, block);
2209 DB((dbg, LEVEL_1, "omitting unnecessary Conv(%+F, %+F) ...", src_mode, tgt_mode));
2214 ir_mode *smaller_mode;
2217 if (src_bits == tgt_bits) {
2218 DB((dbg, LEVEL_1, "omitting unnecessary Conv(%+F, %+F) ...",
2219 src_mode, tgt_mode));
2223 if (src_bits < tgt_bits) {
2224 smaller_mode = src_mode;
2225 smaller_bits = src_bits;
2227 smaller_mode = tgt_mode;
2228 smaller_bits = tgt_bits;
2231 DB((dbg, LEVEL_1, "create Conv(int, int) ...", src_mode, tgt_mode));
2232 if (smaller_bits == 8) {
2233 res = new_rd_ia32_Conv_I2I8Bit(dbgi, irg, block, noreg, noreg, new_op, nomem);
2234 set_ia32_ls_mode(res, smaller_mode);
2236 res = new_rd_ia32_Conv_I2I(dbgi, irg, block, noreg, noreg, new_op, nomem);
2237 set_ia32_ls_mode(res, smaller_mode);
2239 set_ia32_am_support(res, ia32_am_Source, ia32_am_unary);
2243 SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(env_cg, node));
2249 int check_immediate_constraint(long val, char immediate_constraint_type)
2251 switch (immediate_constraint_type) {
2255 return val >= 0 && val <= 32;
2257 return val >= 0 && val <= 63;
2259 return val >= -128 && val <= 127;
2261 return val == 0xff || val == 0xffff;
2263 return val >= 0 && val <= 3;
2265 return val >= 0 && val <= 255;
2267 return val >= 0 && val <= 127;
2271 panic("Invalid immediate constraint found");
2276 ir_node *try_create_Immediate(ir_node *node, char immediate_constraint_type)
2279 tarval *offset = NULL;
2280 int offset_sign = 0;
2282 ir_entity *symconst_ent = NULL;
2283 int symconst_sign = 0;
2285 ir_node *cnst = NULL;
2286 ir_node *symconst = NULL;
2292 mode = get_irn_mode(node);
2293 if(!mode_is_int(mode) && !mode_is_reference(mode)) {
2297 if(is_Minus(node)) {
2299 node = get_Minus_op(node);
2302 if(is_Const(node)) {
2305 offset_sign = minus;
2306 } else if(is_SymConst(node)) {
2309 symconst_sign = minus;
2310 } else if(is_Add(node)) {
2311 ir_node *left = get_Add_left(node);
2312 ir_node *right = get_Add_right(node);
2313 if(is_Const(left) && is_SymConst(right)) {
2316 symconst_sign = minus;
2317 offset_sign = minus;
2318 } else if(is_SymConst(left) && is_Const(right)) {
2321 symconst_sign = minus;
2322 offset_sign = minus;
2324 } else if(is_Sub(node)) {
2325 ir_node *left = get_Sub_left(node);
2326 ir_node *right = get_Sub_right(node);
2327 if(is_Const(left) && is_SymConst(right)) {
2330 symconst_sign = !minus;
2331 offset_sign = minus;
2332 } else if(is_SymConst(left) && is_Const(right)) {
2335 symconst_sign = minus;
2336 offset_sign = !minus;
2343 offset = get_Const_tarval(cnst);
2344 if(tarval_is_long(offset)) {
2345 val = get_tarval_long(offset);
2346 } else if(tarval_is_null(offset)) {
2349 ir_fprintf(stderr, "Optimisation Warning: tarval from %+F is not a "
2354 if(!check_immediate_constraint(val, immediate_constraint_type))
2357 if(symconst != NULL) {
2358 if(immediate_constraint_type != 0) {
2359 /* we need full 32bits for symconsts */
2363 if(get_SymConst_kind(symconst) != symconst_addr_ent)
2365 symconst_ent = get_SymConst_entity(symconst);
2367 if(cnst == NULL && symconst == NULL)
2370 if(offset_sign && offset != NULL) {
2371 offset = tarval_neg(offset);
2374 irg = current_ir_graph;
2375 dbgi = get_irn_dbg_info(node);
2376 block = get_irg_start_block(irg);
2377 res = new_rd_ia32_Immediate(dbgi, irg, block, symconst_ent,
2378 symconst_sign, val);
2379 arch_set_irn_register(env_cg->arch_env, res, &ia32_gp_regs[REG_GP_NOREG]);
2385 ir_node *create_immediate_or_transform(ir_node *node, char immediate_constraint_type)
2387 ir_node *new_node = try_create_Immediate(node, immediate_constraint_type);
2388 if (new_node == NULL) {
2389 new_node = be_transform_node(node);
2394 typedef struct constraint_t constraint_t;
2395 struct constraint_t {
2398 const arch_register_req_t **out_reqs;
2400 const arch_register_req_t *req;
2401 unsigned immediate_possible;
2402 char immediate_type;
2405 void parse_asm_constraint(int pos, constraint_t *constraint, const char *c)
2407 int immediate_possible = 0;
2408 char immediate_type = 0;
2409 unsigned limited = 0;
2410 const arch_register_class_t *cls = NULL;
2412 struct obstack *obst;
2413 arch_register_req_t *req;
2414 unsigned *limited_ptr;
2418 /* TODO: replace all the asserts with nice error messages */
2420 printf("Constraint: %s\n", c);
2430 assert(cls == NULL ||
2431 (cls == &ia32_reg_classes[CLASS_ia32_gp] && limited != 0));
2432 cls = &ia32_reg_classes[CLASS_ia32_gp];
2433 limited |= 1 << REG_EAX;
2436 assert(cls == NULL ||
2437 (cls == &ia32_reg_classes[CLASS_ia32_gp] && limited != 0));
2438 cls = &ia32_reg_classes[CLASS_ia32_gp];
2439 limited |= 1 << REG_EBX;
2442 assert(cls == NULL ||
2443 (cls == &ia32_reg_classes[CLASS_ia32_gp] && limited != 0));
2444 cls = &ia32_reg_classes[CLASS_ia32_gp];
2445 limited |= 1 << REG_ECX;
2448 assert(cls == NULL ||
2449 (cls == &ia32_reg_classes[CLASS_ia32_gp] && limited != 0));
2450 cls = &ia32_reg_classes[CLASS_ia32_gp];
2451 limited |= 1 << REG_EDX;
2454 assert(cls == NULL ||
2455 (cls == &ia32_reg_classes[CLASS_ia32_gp] && limited != 0));
2456 cls = &ia32_reg_classes[CLASS_ia32_gp];
2457 limited |= 1 << REG_EDI;
2460 assert(cls == NULL ||
2461 (cls == &ia32_reg_classes[CLASS_ia32_gp] && limited != 0));
2462 cls = &ia32_reg_classes[CLASS_ia32_gp];
2463 limited |= 1 << REG_ESI;
2466 case 'q': /* q means lower part of the regs only, this makes no
2467 * difference to Q for us (we only assigne whole registers) */
2468 assert(cls == NULL ||
2469 (cls == &ia32_reg_classes[CLASS_ia32_gp] && limited != 0));
2470 cls = &ia32_reg_classes[CLASS_ia32_gp];
2471 limited |= 1 << REG_EAX | 1 << REG_EBX | 1 << REG_ECX |
2475 assert(cls == NULL ||
2476 (cls == &ia32_reg_classes[CLASS_ia32_gp] && limited != 0));
2477 cls = &ia32_reg_classes[CLASS_ia32_gp];
2478 limited |= 1 << REG_EAX | 1 << REG_EDX;
2481 assert(cls == NULL ||
2482 (cls == &ia32_reg_classes[CLASS_ia32_gp] && limited != 0));
2483 cls = &ia32_reg_classes[CLASS_ia32_gp];
2484 limited |= 1 << REG_EAX | 1 << REG_EBX | 1 << REG_ECX |
2485 1 << REG_EDX | 1 << REG_ESI | 1 << REG_EDI |
2492 assert(cls == NULL);
2493 cls = &ia32_reg_classes[CLASS_ia32_gp];
2499 /* TODO: mark values so the x87 simulator knows about t and u */
2500 assert(cls == NULL);
2501 cls = &ia32_reg_classes[CLASS_ia32_vfp];
2506 assert(cls == NULL);
2507 /* TODO: check that sse2 is supported */
2508 cls = &ia32_reg_classes[CLASS_ia32_xmm];
2518 assert(!immediate_possible);
2519 immediate_possible = 1;
2520 immediate_type = *c;
2524 assert(!immediate_possible);
2525 immediate_possible = 1;
2529 assert(!immediate_possible && cls == NULL);
2530 immediate_possible = 1;
2531 cls = &ia32_reg_classes[CLASS_ia32_gp];
2544 assert(constraint->is_in && "can only specify same constraint "
2547 sscanf(c, "%d%n", &same_as, &p);
2554 case 'E': /* no float consts yet */
2555 case 'F': /* no float consts yet */
2556 case 's': /* makes no sense on x86 */
2557 case 'X': /* we can't support that in firm */
2561 case '<': /* no autodecrement on x86 */
2562 case '>': /* no autoincrement on x86 */
2563 case 'C': /* sse constant not supported yet */
2564 case 'G': /* 80387 constant not supported yet */
2565 case 'y': /* we don't support mmx registers yet */
2566 case 'Z': /* not available in 32 bit mode */
2567 case 'e': /* not available in 32 bit mode */
2568 assert(0 && "asm constraint not supported");
2571 assert(0 && "unknown asm constraint found");
2578 const arch_register_req_t *other_constr;
2580 assert(cls == NULL && "same as and register constraint not supported");
2581 assert(!immediate_possible && "same as and immediate constraint not "
2583 assert(same_as < constraint->n_outs && "wrong constraint number in "
2584 "same_as constraint");
2586 other_constr = constraint->out_reqs[same_as];
2588 req = obstack_alloc(obst, sizeof(req[0]));
2589 req->cls = other_constr->cls;
2590 req->type = arch_register_req_type_should_be_same;
2591 req->limited = NULL;
2592 req->other_same = pos;
2593 req->other_different = -1;
2595 /* switch constraints. This is because in firm we have same_as
2596 * constraints on the output constraints while in the gcc asm syntax
2597 * they are specified on the input constraints */
2598 constraint->req = other_constr;
2599 constraint->out_reqs[same_as] = req;
2600 constraint->immediate_possible = 0;
2604 if(immediate_possible && cls == NULL) {
2605 cls = &ia32_reg_classes[CLASS_ia32_gp];
2607 assert(!immediate_possible || cls == &ia32_reg_classes[CLASS_ia32_gp]);
2608 assert(cls != NULL);
2610 if(immediate_possible) {
2611 assert(constraint->is_in
2612 && "imeediates make no sense for output constraints");
2614 /* todo: check types (no float input on 'r' constrainted in and such... */
2616 irg = current_ir_graph;
2617 obst = get_irg_obstack(irg);
2620 req = obstack_alloc(obst, sizeof(req[0]) + sizeof(unsigned));
2621 limited_ptr = (unsigned*) (req+1);
2623 req = obstack_alloc(obst, sizeof(req[0]));
2625 memset(req, 0, sizeof(req[0]));
2628 req->type = arch_register_req_type_limited;
2629 *limited_ptr = limited;
2630 req->limited = limited_ptr;
2632 req->type = arch_register_req_type_normal;
2636 constraint->req = req;
2637 constraint->immediate_possible = immediate_possible;
2638 constraint->immediate_type = immediate_type;
2642 void parse_clobber(ir_node *node, int pos, constraint_t *constraint,
2649 panic("Clobbers not supported yet");
2652 ir_node *gen_ASM(ir_node *node)
2655 ir_graph *irg = current_ir_graph;
2656 ir_node *block = be_transform_node(get_nodes_block(node));
2657 dbg_info *dbgi = get_irn_dbg_info(node);
2664 ia32_asm_attr_t *attr;
2665 const arch_register_req_t **out_reqs;
2666 const arch_register_req_t **in_reqs;
2667 struct obstack *obst;
2668 constraint_t parsed_constraint;
2670 /* transform inputs */
2671 arity = get_irn_arity(node);
2672 in = alloca(arity * sizeof(in[0]));
2673 memset(in, 0, arity * sizeof(in[0]));
2675 n_outs = get_ASM_n_output_constraints(node);
2676 n_clobbers = get_ASM_n_clobbers(node);
2677 out_arity = n_outs + n_clobbers;
2679 /* construct register constraints */
2680 obst = get_irg_obstack(irg);
2681 out_reqs = obstack_alloc(obst, out_arity * sizeof(out_reqs[0]));
2682 parsed_constraint.out_reqs = out_reqs;
2683 parsed_constraint.n_outs = n_outs;
2684 parsed_constraint.is_in = 0;
2685 for(i = 0; i < out_arity; ++i) {
2689 const ir_asm_constraint *constraint;
2690 constraint = & get_ASM_output_constraints(node) [i];
2691 c = get_id_str(constraint->constraint);
2692 parse_asm_constraint(i, &parsed_constraint, c);
2694 ident *glob_id = get_ASM_clobbers(node) [i - n_outs];
2695 c = get_id_str(glob_id);
2696 parse_clobber(node, i, &parsed_constraint, c);
2698 out_reqs[i] = parsed_constraint.req;
2701 in_reqs = obstack_alloc(obst, arity * sizeof(in_reqs[0]));
2702 parsed_constraint.is_in = 1;
2703 for(i = 0; i < arity; ++i) {
2704 const ir_asm_constraint *constraint;
2708 constraint = & get_ASM_input_constraints(node) [i];
2709 constr_id = constraint->constraint;
2710 c = get_id_str(constr_id);
2711 parse_asm_constraint(i, &parsed_constraint, c);
2712 in_reqs[i] = parsed_constraint.req;
2714 if(parsed_constraint.immediate_possible) {
2715 ir_node *pred = get_irn_n(node, i);
2716 char imm_type = parsed_constraint.immediate_type;
2717 ir_node *immediate = try_create_Immediate(pred, imm_type);
2719 if(immediate != NULL) {
2725 /* transform inputs */
2726 for(i = 0; i < arity; ++i) {
2728 ir_node *transformed;
2733 pred = get_irn_n(node, i);
2734 transformed = be_transform_node(pred);
2735 in[i] = transformed;
2738 res = new_rd_ia32_Asm(dbgi, irg, block, arity, in, out_arity);
2740 generic_attr = get_irn_generic_attr(res);
2741 attr = CAST_IA32_ATTR(ia32_asm_attr_t, generic_attr);
2742 attr->asm_text = get_ASM_text(node);
2743 set_ia32_out_req_all(res, out_reqs);
2744 set_ia32_in_req_all(res, in_reqs);
2746 SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(env_cg, node));
2751 /********************************************
2754 * | |__ ___ _ __ ___ __| | ___ ___
2755 * | '_ \ / _ \ '_ \ / _ \ / _` |/ _ \/ __|
2756 * | |_) | __/ | | | (_) | (_| | __/\__ \
2757 * |_.__/ \___|_| |_|\___/ \__,_|\___||___/
2759 ********************************************/
2761 static ir_node *gen_be_StackParam(ir_node *node) {
2762 ir_node *block = be_transform_node(get_nodes_block(node));
2763 ir_node *ptr = get_irn_n(node, be_pos_StackParam_ptr);
2764 ir_node *new_ptr = be_transform_node(ptr);
2765 ir_node *new_op = NULL;
2766 ir_graph *irg = current_ir_graph;
2767 dbg_info *dbgi = get_irn_dbg_info(node);
2768 ir_node *nomem = new_rd_NoMem(current_ir_graph);
2769 ir_entity *ent = arch_get_frame_entity(env_cg->arch_env, node);
2770 ir_mode *load_mode = get_irn_mode(node);
2771 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
2775 if (mode_is_float(load_mode)) {
2776 if (USE_SSE2(env_cg)) {
2777 new_op = new_rd_ia32_xLoad(dbgi, irg, block, new_ptr, noreg, nomem);
2778 pn_res = pn_ia32_xLoad_res;
2779 proj_mode = mode_xmm;
2781 new_op = new_rd_ia32_vfld(dbgi, irg, block, new_ptr, noreg, nomem, load_mode);
2782 pn_res = pn_ia32_vfld_res;
2783 proj_mode = mode_vfp;
2786 new_op = new_rd_ia32_Load(dbgi, irg, block, new_ptr, noreg, nomem);
2787 proj_mode = mode_Iu;
2788 pn_res = pn_ia32_Load_res;
2791 set_irn_pinned(new_op, op_pin_state_floats);
2792 set_ia32_frame_ent(new_op, ent);
2793 set_ia32_use_frame(new_op);
2795 set_ia32_op_type(new_op, ia32_AddrModeS);
2796 set_ia32_am_flavour(new_op, ia32_am_B);
2797 set_ia32_ls_mode(new_op, load_mode);
2798 set_ia32_flags(new_op, get_ia32_flags(new_op) | arch_irn_flags_rematerializable);
2800 SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env_cg, node));
2802 return new_rd_Proj(dbgi, irg, block, new_op, proj_mode, pn_res);
2806 * Transforms a FrameAddr into an ia32 Add.
2808 static ir_node *gen_be_FrameAddr(ir_node *node) {
2809 ir_node *block = be_transform_node(get_nodes_block(node));
2810 ir_node *op = be_get_FrameAddr_frame(node);
2811 ir_node *new_op = be_transform_node(op);
2812 ir_graph *irg = current_ir_graph;
2813 dbg_info *dbgi = get_irn_dbg_info(node);
2814 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
2817 res = new_rd_ia32_Lea(dbgi, irg, block, new_op, noreg);
2818 set_ia32_frame_ent(res, arch_get_frame_entity(env_cg->arch_env, node));
2819 set_ia32_use_frame(res);
2820 set_ia32_am_flavour(res, ia32_am_OB);
2822 SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(env_cg, node));
2828 * Transforms a FrameLoad into an ia32 Load.
2830 static ir_node *gen_be_FrameLoad(ir_node *node) {
2831 ir_node *block = be_transform_node(get_nodes_block(node));
2832 ir_node *mem = get_irn_n(node, be_pos_FrameLoad_mem);
2833 ir_node *new_mem = be_transform_node(mem);
2834 ir_node *ptr = get_irn_n(node, be_pos_FrameLoad_ptr);
2835 ir_node *new_ptr = be_transform_node(ptr);
2836 ir_node *new_op = NULL;
2837 ir_graph *irg = current_ir_graph;
2838 dbg_info *dbgi = get_irn_dbg_info(node);
2839 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
2840 ir_entity *ent = arch_get_frame_entity(env_cg->arch_env, node);
2841 ir_mode *mode = get_type_mode(get_entity_type(ent));
2842 ir_node *projs[pn_Load_max];
2844 ia32_collect_Projs(node, projs, pn_Load_max);
2846 if (mode_is_float(mode)) {
2847 if (USE_SSE2(env_cg)) {
2848 new_op = new_rd_ia32_xLoad(dbgi, irg, block, new_ptr, noreg, new_mem);
2851 new_op = new_rd_ia32_vfld(dbgi, irg, block, new_ptr, noreg, new_mem, mode);
2855 new_op = new_rd_ia32_Load(dbgi, irg, block, new_ptr, noreg, new_mem);
2858 set_irn_pinned(new_op, op_pin_state_floats);
2859 set_ia32_frame_ent(new_op, ent);
2860 set_ia32_use_frame(new_op);
2862 set_ia32_op_type(new_op, ia32_AddrModeS);
2863 set_ia32_am_flavour(new_op, ia32_am_B);
2864 set_ia32_ls_mode(new_op, mode);
2865 set_ia32_flags(new_op, get_ia32_flags(new_op) | arch_irn_flags_rematerializable);
2867 SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env_cg, node));
2874 * Transforms a FrameStore into an ia32 Store.
2876 static ir_node *gen_be_FrameStore(ir_node *node) {
2877 ir_node *block = be_transform_node(get_nodes_block(node));
2878 ir_node *mem = get_irn_n(node, be_pos_FrameStore_mem);
2879 ir_node *new_mem = be_transform_node(mem);
2880 ir_node *ptr = get_irn_n(node, be_pos_FrameStore_ptr);
2881 ir_node *new_ptr = be_transform_node(ptr);
2882 ir_node *val = get_irn_n(node, be_pos_FrameStore_val);
2883 ir_node *new_val = be_transform_node(val);
2884 ir_node *new_op = NULL;
2885 ir_graph *irg = current_ir_graph;
2886 dbg_info *dbgi = get_irn_dbg_info(node);
2887 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
2888 ir_entity *ent = arch_get_frame_entity(env_cg->arch_env, node);
2889 ir_mode *mode = get_irn_mode(val);
2891 if (mode_is_float(mode)) {
2892 if (USE_SSE2(env_cg)) {
2893 new_op = new_rd_ia32_xStore(dbgi, irg, block, new_ptr, noreg, new_val, new_mem);
2895 new_op = new_rd_ia32_vfst(dbgi, irg, block, new_ptr, noreg, new_val, new_mem, mode);
2897 } else if (get_mode_size_bits(mode) == 8) {
2898 new_op = new_rd_ia32_Store8Bit(dbgi, irg, block, new_ptr, noreg, new_val, new_mem);
2900 new_op = new_rd_ia32_Store(dbgi, irg, block, new_ptr, noreg, new_val, new_mem);
2903 set_ia32_frame_ent(new_op, ent);
2904 set_ia32_use_frame(new_op);
2906 set_ia32_op_type(new_op, ia32_AddrModeD);
2907 set_ia32_am_flavour(new_op, ia32_am_B);
2908 set_ia32_ls_mode(new_op, mode);
2910 SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env_cg, node));
2916 * In case SSE is used we need to copy the result from XMM0 to FPU TOS before return.
2918 static ir_node *gen_be_Return(ir_node *node) {
2919 ir_graph *irg = current_ir_graph;
2920 ir_node *ret_val = get_irn_n(node, be_pos_Return_val);
2921 ir_node *ret_mem = get_irn_n(node, be_pos_Return_mem);
2922 ir_entity *ent = get_irg_entity(irg);
2923 ir_type *tp = get_entity_type(ent);
2928 ir_node *frame, *sse_store, *fld, *mproj, *barrier;
2929 ir_node *new_barrier, *new_ret_val, *new_ret_mem;
2932 int pn_ret_val, pn_ret_mem, arity, i;
2934 assert(ret_val != NULL);
2935 if (be_Return_get_n_rets(node) < 1 || ! USE_SSE2(env_cg)) {
2936 return be_duplicate_node(node);
2939 res_type = get_method_res_type(tp, 0);
2941 if (! is_Primitive_type(res_type)) {
2942 return be_duplicate_node(node);
2945 mode = get_type_mode(res_type);
2946 if (! mode_is_float(mode)) {
2947 return be_duplicate_node(node);
2950 assert(get_method_n_ress(tp) == 1);
2952 pn_ret_val = get_Proj_proj(ret_val);
2953 pn_ret_mem = get_Proj_proj(ret_mem);
2955 /* get the Barrier */
2956 barrier = get_Proj_pred(ret_val);
2958 /* get result input of the Barrier */
2959 ret_val = get_irn_n(barrier, pn_ret_val);
2960 new_ret_val = be_transform_node(ret_val);
2962 /* get memory input of the Barrier */
2963 ret_mem = get_irn_n(barrier, pn_ret_mem);
2964 new_ret_mem = be_transform_node(ret_mem);
2966 frame = get_irg_frame(irg);
2968 dbgi = get_irn_dbg_info(barrier);
2969 block = be_transform_node(get_nodes_block(barrier));
2971 noreg = ia32_new_NoReg_gp(env_cg);
2973 /* store xmm0 onto stack */
2974 sse_store = new_rd_ia32_xStoreSimple(dbgi, irg, block, frame, noreg, new_ret_val, new_ret_mem);
2975 set_ia32_ls_mode(sse_store, mode);
2976 set_ia32_op_type(sse_store, ia32_AddrModeD);
2977 set_ia32_use_frame(sse_store);
2978 set_ia32_am_flavour(sse_store, ia32_am_B);
2981 fld = new_rd_ia32_SetST0(dbgi, irg, block, frame, noreg, sse_store);
2982 set_ia32_ls_mode(fld, mode);
2983 set_ia32_op_type(fld, ia32_AddrModeS);
2984 set_ia32_use_frame(fld);
2985 set_ia32_am_flavour(fld, ia32_am_B);
2987 mproj = new_r_Proj(irg, block, fld, mode_M, pn_ia32_SetST0_M);
2988 fld = new_r_Proj(irg, block, fld, mode_vfp, pn_ia32_SetST0_res);
2989 arch_set_irn_register(env_cg->arch_env, fld, &ia32_vfp_regs[REG_VF0]);
2991 /* create a new barrier */
2992 arity = get_irn_arity(barrier);
2993 in = alloca(arity * sizeof(in[0]));
2994 for (i = 0; i < arity; ++i) {
2997 if (i == pn_ret_val) {
2999 } else if (i == pn_ret_mem) {
3002 ir_node *in = get_irn_n(barrier, i);
3003 new_in = be_transform_node(in);
3008 new_barrier = new_ir_node(dbgi, irg, block,
3009 get_irn_op(barrier), get_irn_mode(barrier),
3011 copy_node_attr(barrier, new_barrier);
3012 be_duplicate_deps(barrier, new_barrier);
3013 be_set_transformed_node(barrier, new_barrier);
3014 mark_irn_visited(barrier);
3016 /* transform normally */
3017 return be_duplicate_node(node);
3021 * Transform a be_AddSP into an ia32_AddSP. Eat up const sizes.
3023 static ir_node *gen_be_AddSP(ir_node *node) {
3024 ir_node *block = be_transform_node(get_nodes_block(node));
3025 ir_node *sz = get_irn_n(node, be_pos_AddSP_size);
3027 ir_node *sp = get_irn_n(node, be_pos_AddSP_old_sp);
3028 ir_node *new_sp = be_transform_node(sp);
3029 ir_graph *irg = current_ir_graph;
3030 dbg_info *dbgi = get_irn_dbg_info(node);
3031 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
3032 ir_node *nomem = new_NoMem();
3035 new_sz = create_immediate_or_transform(sz, 0);
3037 /* ia32 stack grows in reverse direction, make a SubSP */
3038 new_op = new_rd_ia32_SubSP(dbgi, irg, block, noreg, noreg, new_sp, new_sz,
3040 set_ia32_am_support(new_op, ia32_am_Source, ia32_am_binary);
3041 SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env_cg, node));
3047 * Transform a be_SubSP into an ia32_SubSP. Eat up const sizes.
3049 static ir_node *gen_be_SubSP(ir_node *node) {
3050 ir_node *block = be_transform_node(get_nodes_block(node));
3051 ir_node *sz = get_irn_n(node, be_pos_SubSP_size);
3053 ir_node *sp = get_irn_n(node, be_pos_SubSP_old_sp);
3054 ir_node *new_sp = be_transform_node(sp);
3055 ir_graph *irg = current_ir_graph;
3056 dbg_info *dbgi = get_irn_dbg_info(node);
3057 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
3058 ir_node *nomem = new_NoMem();
3061 new_sz = create_immediate_or_transform(sz, 0);
3063 /* ia32 stack grows in reverse direction, make an AddSP */
3064 new_op = new_rd_ia32_AddSP(dbgi, irg, block, noreg, noreg, new_sp, new_sz, nomem);
3065 set_ia32_am_support(new_op, ia32_am_Source, ia32_am_binary);
3066 SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env_cg, node));
3072 * This function just sets the register for the Unknown node
3073 * as this is not done during register allocation because Unknown
3074 * is an "ignore" node.
3076 static ir_node *gen_Unknown(ir_node *node) {
3077 ir_mode *mode = get_irn_mode(node);
3079 if (mode_is_float(mode)) {
3081 /* Unknown nodes are buggy in x87 sim, use zero for now... */
3082 if (USE_SSE2(env_cg))
3083 return ia32_new_Unknown_xmm(env_cg);
3085 return ia32_new_Unknown_vfp(env_cg);
3087 ir_graph *irg = current_ir_graph;
3088 dbg_info *dbgi = get_irn_dbg_info(node);
3089 ir_node *block = get_irg_start_block(irg);
3090 return new_rd_ia32_vfldz(dbgi, irg, block);
3092 } else if (mode_needs_gp_reg(mode)) {
3093 return ia32_new_Unknown_gp(env_cg);
3095 assert(0 && "unsupported Unknown-Mode");
3102 * Change some phi modes
3104 static ir_node *gen_Phi(ir_node *node) {
3105 ir_node *block = be_transform_node(get_nodes_block(node));
3106 ir_graph *irg = current_ir_graph;
3107 dbg_info *dbgi = get_irn_dbg_info(node);
3108 ir_mode *mode = get_irn_mode(node);
3111 if(mode_needs_gp_reg(mode)) {
3112 /* we shouldn't have any 64bit stuff around anymore */
3113 assert(get_mode_size_bits(mode) <= 32);
3114 /* all integer operations are on 32bit registers now */
3116 } else if(mode_is_float(mode)) {
3117 if (USE_SSE2(env_cg)) {
3124 /* phi nodes allow loops, so we use the old arguments for now
3125 * and fix this later */
3126 phi = new_ir_node(dbgi, irg, block, op_Phi, mode, get_irn_arity(node), get_irn_in(node) + 1);
3127 copy_node_attr(node, phi);
3128 be_duplicate_deps(node, phi);
3130 be_set_transformed_node(node, phi);
3131 be_enqueue_preds(node);
3136 /**********************************************************************
3139 * | | _____ _____ _ __ ___ __| | _ __ ___ __| | ___ ___
3140 * | |/ _ \ \ /\ / / _ \ '__/ _ \/ _` | | '_ \ / _ \ / _` |/ _ \/ __|
3141 * | | (_) \ V V / __/ | | __/ (_| | | | | | (_) | (_| | __/\__ \
3142 * |_|\___/ \_/\_/ \___|_| \___|\__,_| |_| |_|\___/ \__,_|\___||___/
3144 **********************************************************************/
3146 /* These nodes are created in intrinsic lowering (64bit -> 32bit) */
3148 typedef ir_node *construct_load_func(dbg_info *db, ir_graph *irg, ir_node *block, ir_node *base, ir_node *index, \
3151 typedef ir_node *construct_store_func(dbg_info *db, ir_graph *irg, ir_node *block, ir_node *base, ir_node *index, \
3152 ir_node *val, ir_node *mem);
3155 * Transforms a lowered Load into a "real" one.
3157 static ir_node *gen_lowered_Load(ir_node *node, construct_load_func func)
3159 ir_node *block = be_transform_node(get_nodes_block(node));
3160 ir_node *ptr = get_irn_n(node, 0);
3161 ir_node *new_ptr = be_transform_node(ptr);
3162 ir_node *mem = get_irn_n(node, 1);
3163 ir_node *new_mem = be_transform_node(mem);
3164 ir_graph *irg = current_ir_graph;
3165 dbg_info *dbgi = get_irn_dbg_info(node);
3166 ir_mode *mode = get_ia32_ls_mode(node);
3167 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
3170 new_op = func(dbgi, irg, block, new_ptr, noreg, new_mem);
3172 set_ia32_op_type(new_op, ia32_AddrModeS);
3173 set_ia32_am_flavour(new_op, ia32_am_OB);
3174 set_ia32_am_offs_int(new_op, 0);
3175 set_ia32_am_scale(new_op, 1);
3176 set_ia32_am_sc(new_op, get_ia32_am_sc(node));
3177 if (is_ia32_am_sc_sign(node))
3178 set_ia32_am_sc_sign(new_op);
3179 set_ia32_ls_mode(new_op, mode);
3180 if (is_ia32_use_frame(node)) {
3181 set_ia32_frame_ent(new_op, get_ia32_frame_ent(node));
3182 set_ia32_use_frame(new_op);
3185 SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env_cg, node));
3191 * Transforms a lowered Store into a "real" one.
3193 static ir_node *gen_lowered_Store(ir_node *node, construct_store_func func)
3195 ir_node *block = be_transform_node(get_nodes_block(node));
3196 ir_node *ptr = get_irn_n(node, 0);
3197 ir_node *new_ptr = be_transform_node(ptr);
3198 ir_node *val = get_irn_n(node, 1);
3199 ir_node *new_val = be_transform_node(val);
3200 ir_node *mem = get_irn_n(node, 2);
3201 ir_node *new_mem = be_transform_node(mem);
3202 ir_graph *irg = current_ir_graph;
3203 dbg_info *dbgi = get_irn_dbg_info(node);
3204 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
3205 ir_mode *mode = get_ia32_ls_mode(node);
3208 ia32_am_flavour_t am_flav = ia32_B;
3210 new_op = func(dbgi, irg, block, new_ptr, noreg, new_val, new_mem);
3212 if ((am_offs = get_ia32_am_offs_int(node)) != 0) {
3214 add_ia32_am_offs_int(new_op, am_offs);
3217 set_ia32_op_type(new_op, ia32_AddrModeD);
3218 set_ia32_am_flavour(new_op, am_flav);
3219 set_ia32_ls_mode(new_op, mode);
3220 set_ia32_frame_ent(new_op, get_ia32_frame_ent(node));
3221 set_ia32_use_frame(new_op);
3223 SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env_cg, node));
3230 * Transforms an ia32_l_XXX into a "real" XXX node
3232 * @param env The transformation environment
3233 * @return the created ia32 XXX node
3235 #define GEN_LOWERED_OP(op) \
3236 static ir_node *gen_ia32_l_##op(ir_node *node) { \
3237 return gen_binop(node, get_binop_left(node), \
3238 get_binop_right(node), new_rd_ia32_##op,0); \
3241 #define GEN_LOWERED_x87_OP(op) \
3242 static ir_node *gen_ia32_l_##op(ir_node *node) { \
3244 new_op = gen_binop_x87_float(node, get_binop_left(node), \
3245 get_binop_right(node), new_rd_ia32_##op); \
3249 #define GEN_LOWERED_UNOP(op) \
3250 static ir_node *gen_ia32_l_##op(ir_node *node) {\
3251 return gen_unop(node, get_unop_op(node), new_rd_ia32_##op); \
3254 #define GEN_LOWERED_SHIFT_OP(op) \
3255 static ir_node *gen_ia32_l_##op(ir_node *node) {\
3256 return gen_shift_binop(node, get_binop_left(node), \
3257 get_binop_right(node), new_rd_ia32_##op); \
3260 #define GEN_LOWERED_LOAD(op) \
3261 static ir_node *gen_ia32_l_##op(ir_node *node) { \
3262 return gen_lowered_Load(node, new_rd_ia32_##op); \
3265 #define GEN_LOWERED_STORE(op) \
3266 static ir_node *gen_ia32_l_##op(ir_node *node) { \
3267 return gen_lowered_Store(node, new_rd_ia32_##op); \
3274 GEN_LOWERED_OP(IMul)
3276 GEN_LOWERED_x87_OP(vfprem)
3277 GEN_LOWERED_x87_OP(vfmul)
3278 GEN_LOWERED_x87_OP(vfsub)
3280 GEN_LOWERED_UNOP(Neg)
3282 GEN_LOWERED_LOAD(vfild)
3283 GEN_LOWERED_LOAD(Load)
3284 // GEN_LOWERED_STORE(vfist) TODO
3285 GEN_LOWERED_STORE(Store)
3287 static ir_node *gen_ia32_l_vfdiv(ir_node *node) {
3288 ir_node *block = be_transform_node(get_nodes_block(node));
3289 ir_node *left = get_binop_left(node);
3290 ir_node *new_left = be_transform_node(left);
3291 ir_node *right = get_binop_right(node);
3292 ir_node *new_right = be_transform_node(right);
3293 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
3294 ir_graph *irg = current_ir_graph;
3295 dbg_info *dbgi = get_irn_dbg_info(node);
3296 ir_node *fpcw = be_abi_get_ignore_irn(env_cg->birg->abi,
3297 &ia32_fp_cw_regs[REG_FPCW]);
3300 vfdiv = new_rd_ia32_vfdiv(dbgi, irg, block, noreg, noreg, new_left,
3301 new_right, new_NoMem(), fpcw);
3302 clear_ia32_commutative(vfdiv);
3303 set_ia32_am_support(vfdiv, ia32_am_Source, ia32_am_binary);
3305 SET_IA32_ORIG_NODE(vfdiv, ia32_get_old_node_name(env_cg, node));
3311 * Transforms a l_MulS into a "real" MulS node.
3313 * @param env The transformation environment
3314 * @return the created ia32 Mul node
3316 static ir_node *gen_ia32_l_Mul(ir_node *node) {
3317 ir_node *block = be_transform_node(get_nodes_block(node));
3318 ir_node *left = get_binop_left(node);
3319 ir_node *new_left = be_transform_node(left);
3320 ir_node *right = get_binop_right(node);
3321 ir_node *new_right = be_transform_node(right);
3322 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
3323 ir_graph *irg = current_ir_graph;
3324 dbg_info *dbgi = get_irn_dbg_info(node);
3326 /* l_Mul is already a mode_T node, so we create the Mul in the normal way */
3327 /* and then skip the result Proj, because all needed Projs are already there. */
3328 ir_node *muls = new_rd_ia32_Mul(dbgi, irg, block, noreg, noreg, new_left,
3329 new_right, new_NoMem());
3330 clear_ia32_commutative(muls);
3331 set_ia32_am_support(muls, ia32_am_Source, ia32_am_binary);
3333 SET_IA32_ORIG_NODE(muls, ia32_get_old_node_name(env_cg, node));
3338 GEN_LOWERED_SHIFT_OP(Shl)
3339 GEN_LOWERED_SHIFT_OP(Shr)
3340 GEN_LOWERED_SHIFT_OP(Sar)
3343 * Transforms a l_ShlD/l_ShrD into a ShlD/ShrD. Those nodes have 3 data inputs:
3344 * op1 - target to be shifted
3345 * op2 - contains bits to be shifted into target
3347 * Only op3 can be an immediate.
3349 static ir_node *gen_lowered_64bit_shifts(ir_node *node, ir_node *op1,
3350 ir_node *op2, ir_node *count)
3352 ir_node *block = be_transform_node(get_nodes_block(node));
3353 ir_node *new_op1 = be_transform_node(op1);
3354 ir_node *new_op2 = be_transform_node(op2);
3355 ir_node *new_count = be_transform_node(count);
3356 ir_node *new_op = NULL;
3357 ir_graph *irg = current_ir_graph;
3358 dbg_info *dbgi = get_irn_dbg_info(node);
3359 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
3360 ir_node *nomem = new_NoMem();
3364 assert(! mode_is_float(get_irn_mode(node)) && "Shift/Rotate with float not supported");
3366 /* Check if immediate optimization is on and */
3367 /* if it's an operation with immediate. */
3368 imm_op = (env_cg->opt & IA32_OPT_IMMOPS) ? get_immediate_op(NULL, new_count) : NULL;
3370 /* Limit imm_op within range imm8 */
3372 tv = get_ia32_Immop_tarval(imm_op);
3375 tv = tarval_mod(tv, new_tarval_from_long(32, get_tarval_mode(tv)));
3376 set_ia32_Immop_tarval(imm_op, tv);
3383 /* integer operations */
3385 /* This is ShiftD with const */
3386 DB((dbg, LEVEL_1, "ShiftD with immediate ..."));
3388 if (is_ia32_l_ShlD(node))
3389 new_op = new_rd_ia32_ShlD(dbgi, irg, block, noreg, noreg,
3390 new_op1, new_op2, noreg, nomem);
3392 new_op = new_rd_ia32_ShrD(dbgi, irg, block, noreg, noreg,
3393 new_op1, new_op2, noreg, nomem);
3394 copy_ia32_Immop_attr(new_op, imm_op);
3397 /* This is a normal ShiftD */
3398 DB((dbg, LEVEL_1, "ShiftD binop ..."));
3399 if (is_ia32_l_ShlD(node))
3400 new_op = new_rd_ia32_ShlD(dbgi, irg, block, noreg, noreg,
3401 new_op1, new_op2, new_count, nomem);
3403 new_op = new_rd_ia32_ShrD(dbgi, irg, block, noreg, noreg,
3404 new_op1, new_op2, new_count, nomem);
3407 /* set AM support */
3408 set_ia32_am_support(new_op, ia32_am_Dest, ia32_am_binary);
3410 SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env_cg, node));
3412 set_ia32_emit_cl(new_op);
3417 static ir_node *gen_ia32_l_ShlD(ir_node *node) {
3418 return gen_lowered_64bit_shifts(node, get_irn_n(node, 0),
3419 get_irn_n(node, 1), get_irn_n(node, 2));
3422 static ir_node *gen_ia32_l_ShrD(ir_node *node) {
3423 return gen_lowered_64bit_shifts(node, get_irn_n(node, 0),
3424 get_irn_n(node, 1), get_irn_n(node, 2));
3428 * In case SSE Unit is used, the node is transformed into a vfst + xLoad.
3430 static ir_node *gen_ia32_l_X87toSSE(ir_node *node) {
3431 ir_node *block = be_transform_node(get_nodes_block(node));
3432 ir_node *val = get_irn_n(node, 1);
3433 ir_node *new_val = be_transform_node(val);
3434 ia32_code_gen_t *cg = env_cg;
3435 ir_node *res = NULL;
3436 ir_graph *irg = current_ir_graph;
3438 ir_node *noreg, *new_ptr, *new_mem;
3445 mem = get_irn_n(node, 2);
3446 new_mem = be_transform_node(mem);
3447 ptr = get_irn_n(node, 0);
3448 new_ptr = be_transform_node(ptr);
3449 noreg = ia32_new_NoReg_gp(cg);
3450 dbgi = get_irn_dbg_info(node);
3452 /* Store x87 -> MEM */
3453 res = new_rd_ia32_vfst(dbgi, irg, block, new_ptr, noreg, new_val, new_mem, get_ia32_ls_mode(node));
3454 set_ia32_frame_ent(res, get_ia32_frame_ent(node));
3455 set_ia32_use_frame(res);
3456 set_ia32_ls_mode(res, get_ia32_ls_mode(node));
3457 set_ia32_am_flavour(res, ia32_B);
3458 set_ia32_op_type(res, ia32_AddrModeD);
3460 /* Load MEM -> SSE */
3461 res = new_rd_ia32_xLoad(dbgi, irg, block, new_ptr, noreg, res);
3462 set_ia32_frame_ent(res, get_ia32_frame_ent(node));
3463 set_ia32_use_frame(res);
3464 set_ia32_ls_mode(res, get_ia32_ls_mode(node));
3465 set_ia32_am_flavour(res, ia32_B);
3466 set_ia32_op_type(res, ia32_AddrModeS);
3467 res = new_rd_Proj(dbgi, irg, block, res, mode_xmm, pn_ia32_xLoad_res);
3473 * In case SSE Unit is used, the node is transformed into a xStore + vfld.
3475 static ir_node *gen_ia32_l_SSEtoX87(ir_node *node) {
3476 ir_node *block = be_transform_node(get_nodes_block(node));
3477 ir_node *val = get_irn_n(node, 1);
3478 ir_node *new_val = be_transform_node(val);
3479 ia32_code_gen_t *cg = env_cg;
3480 ir_graph *irg = current_ir_graph;
3481 ir_node *res = NULL;
3482 ir_entity *fent = get_ia32_frame_ent(node);
3483 ir_mode *lsmode = get_ia32_ls_mode(node);
3485 ir_node *noreg, *new_ptr, *new_mem;
3489 if (! USE_SSE2(cg)) {
3490 /* SSE unit is not used -> skip this node. */
3494 ptr = get_irn_n(node, 0);
3495 new_ptr = be_transform_node(ptr);
3496 mem = get_irn_n(node, 2);
3497 new_mem = be_transform_node(mem);
3498 noreg = ia32_new_NoReg_gp(cg);
3499 dbgi = get_irn_dbg_info(node);
3501 /* Store SSE -> MEM */
3502 if (is_ia32_xLoad(skip_Proj(new_val))) {
3503 ir_node *ld = skip_Proj(new_val);
3505 /* we can vfld the value directly into the fpu */
3506 fent = get_ia32_frame_ent(ld);
3507 ptr = get_irn_n(ld, 0);
3508 offs = get_ia32_am_offs_int(ld);
3510 res = new_rd_ia32_xStore(dbgi, irg, block, new_ptr, noreg, new_val, new_mem);
3511 set_ia32_frame_ent(res, fent);
3512 set_ia32_use_frame(res);
3513 set_ia32_ls_mode(res, lsmode);
3514 set_ia32_am_flavour(res, ia32_B);
3515 set_ia32_op_type(res, ia32_AddrModeD);
3519 /* Load MEM -> x87 */
3520 res = new_rd_ia32_vfld(dbgi, irg, block, new_ptr, noreg, new_mem, lsmode);
3521 set_ia32_frame_ent(res, fent);
3522 set_ia32_use_frame(res);
3523 add_ia32_am_offs_int(res, offs);
3524 set_ia32_am_flavour(res, ia32_B);
3525 set_ia32_op_type(res, ia32_AddrModeS);
3526 res = new_rd_Proj(dbgi, irg, block, res, mode_vfp, pn_ia32_vfld_res);
3531 /*********************************************************
3534 * _ __ ___ __ _ _ _ __ __| |_ __ ___ _____ _ __
3535 * | '_ ` _ \ / _` | | '_ \ / _` | '__| \ \ / / _ \ '__|
3536 * | | | | | | (_| | | | | | | (_| | | | |\ V / __/ |
3537 * |_| |_| |_|\__,_|_|_| |_| \__,_|_| |_| \_/ \___|_|
3539 *********************************************************/
3542 * the BAD transformer.
3544 static ir_node *bad_transform(ir_node *node) {
3545 panic("No transform function for %+F available.\n", node);
3550 * Transform the Projs of an AddSP.
3552 static ir_node *gen_Proj_be_AddSP(ir_node *node) {
3553 ir_node *block = be_transform_node(get_nodes_block(node));
3554 ir_node *pred = get_Proj_pred(node);
3555 ir_node *new_pred = be_transform_node(pred);
3556 ir_graph *irg = current_ir_graph;
3557 dbg_info *dbgi = get_irn_dbg_info(node);
3558 long proj = get_Proj_proj(node);
3560 if (proj == pn_be_AddSP_sp) {
3561 ir_node *res = new_rd_Proj(dbgi, irg, block, new_pred, mode_Iu,
3562 pn_ia32_SubSP_stack);
3563 arch_set_irn_register(env_cg->arch_env, res, &ia32_gp_regs[REG_ESP]);
3565 } else if(proj == pn_be_AddSP_res) {
3566 return new_rd_Proj(dbgi, irg, block, new_pred, mode_Iu,
3567 pn_ia32_SubSP_addr);
3568 } else if (proj == pn_be_AddSP_M) {
3569 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_SubSP_M);
3573 return new_rd_Unknown(irg, get_irn_mode(node));
3577 * Transform the Projs of a SubSP.
3579 static ir_node *gen_Proj_be_SubSP(ir_node *node) {
3580 ir_node *block = be_transform_node(get_nodes_block(node));
3581 ir_node *pred = get_Proj_pred(node);
3582 ir_node *new_pred = be_transform_node(pred);
3583 ir_graph *irg = current_ir_graph;
3584 dbg_info *dbgi = get_irn_dbg_info(node);
3585 long proj = get_Proj_proj(node);
3587 if (proj == pn_be_SubSP_sp) {
3588 ir_node *res = new_rd_Proj(dbgi, irg, block, new_pred, mode_Iu,
3589 pn_ia32_AddSP_stack);
3590 arch_set_irn_register(env_cg->arch_env, res, &ia32_gp_regs[REG_ESP]);
3592 } else if (proj == pn_be_SubSP_M) {
3593 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_AddSP_M);
3597 return new_rd_Unknown(irg, get_irn_mode(node));
3601 * Transform and renumber the Projs from a Load.
3603 static ir_node *gen_Proj_Load(ir_node *node) {
3604 ir_node *block = be_transform_node(get_nodes_block(node));
3605 ir_node *pred = get_Proj_pred(node);
3606 ir_node *new_pred = be_transform_node(pred);
3607 ir_graph *irg = current_ir_graph;
3608 dbg_info *dbgi = get_irn_dbg_info(node);
3609 long proj = get_Proj_proj(node);
3611 /* renumber the proj */
3612 if (is_ia32_Load(new_pred)) {
3613 if (proj == pn_Load_res) {
3614 return new_rd_Proj(dbgi, irg, block, new_pred, mode_Iu, pn_ia32_Load_res);
3615 } else if (proj == pn_Load_M) {
3616 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_Load_M);
3618 } else if (is_ia32_xLoad(new_pred)) {
3619 if (proj == pn_Load_res) {
3620 return new_rd_Proj(dbgi, irg, block, new_pred, mode_xmm, pn_ia32_xLoad_res);
3621 } else if (proj == pn_Load_M) {
3622 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_xLoad_M);
3624 } else if (is_ia32_vfld(new_pred)) {
3625 if (proj == pn_Load_res) {
3626 return new_rd_Proj(dbgi, irg, block, new_pred, mode_vfp, pn_ia32_vfld_res);
3627 } else if (proj == pn_Load_M) {
3628 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_vfld_M);
3633 return new_rd_Unknown(irg, get_irn_mode(node));
3637 * Transform and renumber the Projs from a DivMod like instruction.
3639 static ir_node *gen_Proj_DivMod(ir_node *node) {
3640 ir_node *block = be_transform_node(get_nodes_block(node));
3641 ir_node *pred = get_Proj_pred(node);
3642 ir_node *new_pred = be_transform_node(pred);
3643 ir_graph *irg = current_ir_graph;
3644 dbg_info *dbgi = get_irn_dbg_info(node);
3645 ir_mode *mode = get_irn_mode(node);
3646 long proj = get_Proj_proj(node);
3648 assert(is_ia32_Div(new_pred) || is_ia32_IDiv(new_pred));
3650 switch (get_irn_opcode(pred)) {
3654 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_Div_M);
3656 return new_rd_Proj(dbgi, irg, block, new_pred, mode_Iu, pn_ia32_Div_div_res);
3664 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_Div_M);
3666 return new_rd_Proj(dbgi, irg, block, new_pred, mode_Iu, pn_ia32_Div_mod_res);
3674 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_Div_M);
3675 case pn_DivMod_res_div:
3676 return new_rd_Proj(dbgi, irg, block, new_pred, mode_Iu, pn_ia32_Div_div_res);
3677 case pn_DivMod_res_mod:
3678 return new_rd_Proj(dbgi, irg, block, new_pred, mode_Iu, pn_ia32_Div_mod_res);
3688 return new_rd_Unknown(irg, mode);
3692 * Transform and renumber the Projs from a CopyB.
3694 static ir_node *gen_Proj_CopyB(ir_node *node) {
3695 ir_node *block = be_transform_node(get_nodes_block(node));
3696 ir_node *pred = get_Proj_pred(node);
3697 ir_node *new_pred = be_transform_node(pred);
3698 ir_graph *irg = current_ir_graph;
3699 dbg_info *dbgi = get_irn_dbg_info(node);
3700 ir_mode *mode = get_irn_mode(node);
3701 long proj = get_Proj_proj(node);
3704 case pn_CopyB_M_regular:
3705 if (is_ia32_CopyB_i(new_pred)) {
3706 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_CopyB_i_M);
3707 } else if (is_ia32_CopyB(new_pred)) {
3708 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_CopyB_M);
3716 return new_rd_Unknown(irg, mode);
3720 * Transform and renumber the Projs from a vfdiv.
3722 static ir_node *gen_Proj_l_vfdiv(ir_node *node) {
3723 ir_node *block = be_transform_node(get_nodes_block(node));
3724 ir_node *pred = get_Proj_pred(node);
3725 ir_node *new_pred = be_transform_node(pred);
3726 ir_graph *irg = current_ir_graph;
3727 dbg_info *dbgi = get_irn_dbg_info(node);
3728 ir_mode *mode = get_irn_mode(node);
3729 long proj = get_Proj_proj(node);
3732 case pn_ia32_l_vfdiv_M:
3733 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_vfdiv_M);
3734 case pn_ia32_l_vfdiv_res:
3735 return new_rd_Proj(dbgi, irg, block, new_pred, mode_vfp, pn_ia32_vfdiv_res);
3740 return new_rd_Unknown(irg, mode);
3744 * Transform and renumber the Projs from a Quot.
3746 static ir_node *gen_Proj_Quot(ir_node *node) {
3747 ir_node *block = be_transform_node(get_nodes_block(node));
3748 ir_node *pred = get_Proj_pred(node);
3749 ir_node *new_pred = be_transform_node(pred);
3750 ir_graph *irg = current_ir_graph;
3751 dbg_info *dbgi = get_irn_dbg_info(node);
3752 ir_mode *mode = get_irn_mode(node);
3753 long proj = get_Proj_proj(node);
3757 if (is_ia32_xDiv(new_pred)) {
3758 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_xDiv_M);
3759 } else if (is_ia32_vfdiv(new_pred)) {
3760 return new_rd_Proj(dbgi, irg, block, new_pred, mode_M, pn_ia32_vfdiv_M);
3764 if (is_ia32_xDiv(new_pred)) {
3765 return new_rd_Proj(dbgi, irg, block, new_pred, mode_xmm, pn_ia32_xDiv_res);
3766 } else if (is_ia32_vfdiv(new_pred)) {
3767 return new_rd_Proj(dbgi, irg, block, new_pred, mode_vfp, pn_ia32_vfdiv_res);
3775 return new_rd_Unknown(irg, mode);
3779 * Transform the Thread Local Storage Proj.
3781 static ir_node *gen_Proj_tls(ir_node *node) {
3782 ir_node *block = be_transform_node(get_nodes_block(node));
3783 ir_graph *irg = current_ir_graph;
3784 dbg_info *dbgi = NULL;
3785 ir_node *res = new_rd_ia32_LdTls(dbgi, irg, block, mode_Iu);
3791 * Transform the Projs from a be_Call.
3793 static ir_node *gen_Proj_be_Call(ir_node *node) {
3794 ir_node *block = be_transform_node(get_nodes_block(node));
3795 ir_node *call = get_Proj_pred(node);
3796 ir_node *new_call = be_transform_node(call);
3797 ir_graph *irg = current_ir_graph;
3798 dbg_info *dbgi = get_irn_dbg_info(node);
3799 long proj = get_Proj_proj(node);
3800 ir_mode *mode = get_irn_mode(node);
3802 const arch_register_class_t *cls;
3804 /* The following is kinda tricky: If we're using SSE, then we have to
3805 * move the result value of the call in floating point registers to an
3806 * xmm register, we therefore construct a GetST0 -> xLoad sequence
3807 * after the call, we have to make sure to correctly make the
3808 * MemProj and the result Proj use these 2 nodes
3810 if (proj == pn_be_Call_M_regular) {
3811 // get new node for result, are we doing the sse load/store hack?
3812 ir_node *call_res = be_get_Proj_for_pn(call, pn_be_Call_first_res);
3813 ir_node *call_res_new;
3814 ir_node *call_res_pred = NULL;
3816 if (call_res != NULL) {
3817 call_res_new = be_transform_node(call_res);
3818 call_res_pred = get_Proj_pred(call_res_new);
3821 if (call_res_pred == NULL || be_is_Call(call_res_pred)) {
3822 return new_rd_Proj(dbgi, irg, block, new_call, mode_M, pn_be_Call_M_regular);
3824 assert(is_ia32_xLoad(call_res_pred));
3825 return new_rd_Proj(dbgi, irg, block, call_res_pred, mode_M, pn_ia32_xLoad_M);
3828 if (proj == pn_be_Call_first_res && mode_is_float(mode) && USE_SSE2(env_cg)) {
3830 ir_node *frame = get_irg_frame(irg);
3831 ir_node *noreg = ia32_new_NoReg_gp(env_cg);
3833 ir_node *call_mem = be_get_Proj_for_pn(call, pn_be_Call_M_regular);
3835 /* in case there is no memory output: create one to serialize the copy FPU -> SSE */
3836 call_mem = new_rd_Proj(dbgi, irg, block, new_call, mode_M, pn_be_Call_M_regular);
3838 /* store st(0) onto stack */
3839 fstp = new_rd_ia32_GetST0(dbgi, irg, block, frame, noreg, call_mem);
3841 set_ia32_ls_mode(fstp, mode);
3842 set_ia32_op_type(fstp, ia32_AddrModeD);
3843 set_ia32_use_frame(fstp);
3844 set_ia32_am_flavour(fstp, ia32_am_B);
3846 /* load into SSE register */
3847 sse_load = new_rd_ia32_xLoad(dbgi, irg, block, frame, noreg, fstp);
3848 set_ia32_ls_mode(sse_load, mode);
3849 set_ia32_op_type(sse_load, ia32_AddrModeS);
3850 set_ia32_use_frame(sse_load);
3851 set_ia32_am_flavour(sse_load, ia32_am_B);
3853 sse_load = new_rd_Proj(dbgi, irg, block, sse_load, mode_xmm, pn_ia32_xLoad_res);
3855 /* now: create new Keep whith all former ins and one additional in - the result Proj */
3857 /* get a Proj representing a caller save register */
3858 p = be_get_Proj_for_pn(call, pn_be_Call_first_res + 1);
3859 assert(is_Proj(p) && "Proj expected.");
3861 /* user of the the proj is the Keep */
3862 p = get_edge_src_irn(get_irn_out_edge_first(p));
3863 assert(be_is_Keep(p) && "Keep expected.");
3868 /* transform call modes */
3869 if (mode_is_data(mode)) {
3870 cls = arch_get_irn_reg_class(env_cg->arch_env, node, -1);
3874 return new_rd_Proj(dbgi, irg, block, new_call, mode, proj);
3878 * Transform the Projs from a Cmp.
3880 static ir_node *gen_Proj_Cmp(ir_node *node)
3882 /* normally Cmps are processed when looking at Cond nodes, but this case
3883 * can happen in complicated Psi conditions */
3885 ir_node *cmp = get_Proj_pred(node);
3886 long pnc = get_Proj_proj(node);
3887 ir_node *cmp_left = get_Cmp_left(cmp);
3888 ir_node *cmp_right = get_Cmp_right(cmp);
3889 ir_mode *cmp_mode = get_irn_mode(cmp_left);
3890 dbg_info *dbgi = get_irn_dbg_info(cmp);
3891 ir_node *block = be_transform_node(get_nodes_block(node));
3894 assert(!mode_is_float(cmp_mode));
3896 if(!mode_is_signed(cmp_mode)) {
3897 pnc |= ia32_pn_Cmp_Unsigned;
3900 res = create_set(pnc, cmp_left, cmp_right, dbgi, block);
3901 SET_IA32_ORIG_NODE(res, ia32_get_old_node_name(env_cg, cmp));
3907 * Transform and potentially renumber Proj nodes.
3909 static ir_node *gen_Proj(ir_node *node) {
3910 ir_graph *irg = current_ir_graph;
3911 dbg_info *dbgi = get_irn_dbg_info(node);
3912 ir_node *pred = get_Proj_pred(node);
3913 long proj = get_Proj_proj(node);
3915 if (is_Store(pred) || be_is_FrameStore(pred)) {
3916 if (proj == pn_Store_M) {
3917 return be_transform_node(pred);
3920 return new_r_Bad(irg);
3922 } else if (is_Load(pred) || be_is_FrameLoad(pred)) {
3923 return gen_Proj_Load(node);
3924 } else if (is_Div(pred) || is_Mod(pred) || is_DivMod(pred)) {
3925 return gen_Proj_DivMod(node);
3926 } else if (is_CopyB(pred)) {
3927 return gen_Proj_CopyB(node);
3928 } else if (is_Quot(pred)) {
3929 return gen_Proj_Quot(node);
3930 } else if (is_ia32_l_vfdiv(pred)) {
3931 return gen_Proj_l_vfdiv(node);
3932 } else if (be_is_SubSP(pred)) {
3933 return gen_Proj_be_SubSP(node);
3934 } else if (be_is_AddSP(pred)) {
3935 return gen_Proj_be_AddSP(node);
3936 } else if (be_is_Call(pred)) {
3937 return gen_Proj_be_Call(node);
3938 } else if (is_Cmp(pred)) {
3939 return gen_Proj_Cmp(node);
3940 } else if (get_irn_op(pred) == op_Start) {
3941 if (proj == pn_Start_X_initial_exec) {
3942 ir_node *block = get_nodes_block(pred);
3945 /* we exchange the ProjX with a jump */
3946 block = be_transform_node(block);
3947 jump = new_rd_Jmp(dbgi, irg, block);
3950 if (node == be_get_old_anchor(anchor_tls)) {
3951 return gen_Proj_tls(node);
3954 ir_node *new_pred = be_transform_node(pred);
3955 ir_node *block = be_transform_node(get_nodes_block(node));
3956 ir_mode *mode = get_irn_mode(node);
3957 if (mode_needs_gp_reg(mode)) {
3958 ir_node *new_proj = new_r_Proj(irg, block, new_pred, mode_Iu,
3959 get_Proj_proj(node));
3960 #ifdef DEBUG_libfirm
3961 new_proj->node_nr = node->node_nr;
3967 return be_duplicate_node(node);
3971 * Enters all transform functions into the generic pointer
3973 static void register_transformers(void)
3977 /* first clear the generic function pointer for all ops */
3978 clear_irp_opcodes_generic_func();
3980 #define GEN(a) { be_transform_func *func = gen_##a; op_##a->ops.generic = (op_func) func; }
3981 #define BAD(a) op_##a->ops.generic = (op_func)bad_transform
4017 /* transform ops from intrinsic lowering */
4037 /* GEN(ia32_l_vfist); TODO */
4039 GEN(ia32_l_X87toSSE);
4040 GEN(ia32_l_SSEtoX87);
4045 /* we should never see these nodes */
4060 /* handle generic backend nodes */
4071 /* set the register for all Unknown nodes */
4074 op_Mulh = get_op_Mulh();
4083 * Pre-transform all unknown and noreg nodes.
4085 static void ia32_pretransform_node(void *arch_cg) {
4086 ia32_code_gen_t *cg = arch_cg;
4088 cg->unknown_gp = be_pre_transform_node(cg->unknown_gp);
4089 cg->unknown_vfp = be_pre_transform_node(cg->unknown_vfp);
4090 cg->unknown_xmm = be_pre_transform_node(cg->unknown_xmm);
4091 cg->noreg_gp = be_pre_transform_node(cg->noreg_gp);
4092 cg->noreg_vfp = be_pre_transform_node(cg->noreg_vfp);
4093 cg->noreg_xmm = be_pre_transform_node(cg->noreg_xmm);
4097 void add_missing_keep_walker(ir_node *node, void *data)
4100 unsigned found_projs = 0;
4101 const ir_edge_t *edge;
4102 ir_mode *mode = get_irn_mode(node);
4107 if(!is_ia32_irn(node))
4110 n_outs = get_ia32_n_res(node);
4113 if(is_ia32_SwitchJmp(node))
4116 assert(n_outs < (int) sizeof(unsigned) * 8);
4117 foreach_out_edge(node, edge) {
4118 ir_node *proj = get_edge_src_irn(edge);
4119 int pn = get_Proj_proj(proj);
4121 assert(pn < n_outs);
4122 found_projs |= 1 << pn;
4126 /* are keeps missing? */
4128 for(i = 0; i < n_outs; ++i) {
4131 const arch_register_req_t *req;
4132 const arch_register_class_t *class;
4134 if(found_projs & (1 << i)) {
4138 req = get_ia32_out_req(node, i);
4144 block = get_nodes_block(node);
4145 in[0] = new_r_Proj(current_ir_graph, block, node,
4146 arch_register_class_mode(class), i);
4147 if(last_keep != NULL) {
4148 be_Keep_add_node(last_keep, class, in[0]);
4150 last_keep = be_new_Keep(class, current_ir_graph, block, 1, in);
4156 * Adds missing keeps to nodes
4159 void add_missing_keeps(ia32_code_gen_t *cg)
4161 ir_graph *irg = be_get_birg_irg(cg->birg);
4162 irg_walk_graph(irg, add_missing_keep_walker, NULL, NULL);
4165 /* do the transformation */
4166 void ia32_transform_graph(ia32_code_gen_t *cg) {
4167 register_transformers();
4169 be_transform_graph(cg->birg, ia32_pretransform_node, cg);
4170 edges_verify(cg->irg);
4171 add_missing_keeps(cg);
4172 edges_verify(cg->irg);
4175 void ia32_init_transform(void)
4177 FIRM_DBG_REGISTER(dbg, "firm.be.ia32.transform");