2 * Copyright (C) 1995-2010 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 code selection (transform FIRM into SPARC FIRM)
28 #include "irgraph_t.h"
40 #include "../benode.h"
42 #include "../beutil.h"
43 #include "../betranshlp.h"
44 #include "../beabihelper.h"
45 #include "bearch_sparc_t.h"
47 #include "sparc_nodes_attr.h"
48 #include "sparc_transform.h"
49 #include "sparc_new_nodes.h"
50 #include "gen_sparc_new_nodes.h"
52 #include "gen_sparc_regalloc_if.h"
53 #include "sparc_cconv.h"
57 DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
59 static sparc_code_gen_t *env_cg;
60 static beabi_helper_env_t *abihelper;
61 static const arch_register_t *sp_reg = &sparc_gp_regs[REG_SP];
62 static const arch_register_t *fp_reg = &sparc_gp_regs[REG_FRAME_POINTER];
63 static calling_convention_t *cconv = NULL;
64 static ir_mode *mode_gp;
65 static ir_mode *mode_fp;
66 static pmap *node_to_stack;
68 static ir_node *gen_SymConst(ir_node *node);
71 static inline int mode_needs_gp_reg(ir_mode *mode)
73 return mode_is_int(mode) || mode_is_reference(mode);
77 * Create an And that will zero out upper bits.
79 * @param dbgi debug info
80 * @param block the basic block
81 * @param op the original node
82 * @param src_bits number of lower bits that will remain
84 static ir_node *gen_zero_extension(dbg_info *dbgi, ir_node *block, ir_node *op,
88 return new_bd_sparc_And_imm(dbgi, block, op, 0xFF);
89 } else if (src_bits == 16) {
90 ir_node *lshift = new_bd_sparc_Sll_imm(dbgi, block, op, 16);
91 ir_node *rshift = new_bd_sparc_Slr_imm(dbgi, block, lshift, 16);
94 panic("zero extension only supported for 8 and 16 bits");
99 * Generate code for a sign extension.
101 static ir_node *gen_sign_extension(dbg_info *dbgi, ir_node *block, ir_node *op,
104 int shift_width = 32 - src_bits;
105 ir_node *lshift_node = new_bd_sparc_Sll_imm(dbgi, block, op, shift_width);
106 ir_node *rshift_node = new_bd_sparc_Sra_imm(dbgi, block, lshift_node, shift_width);
111 * returns true if it is assured, that the upper bits of a node are "clean"
112 * which means for a 16 or 8 bit value, that the upper bits in the register
113 * are 0 for unsigned and a copy of the last significant bit for signed
116 static bool upper_bits_clean(ir_node *transformed_node, ir_mode *mode)
118 (void) transformed_node;
124 static ir_node *gen_extension(dbg_info *dbgi, ir_node *block, ir_node *op,
127 int bits = get_mode_size_bits(orig_mode);
131 if (mode_is_signed(orig_mode)) {
132 return gen_sign_extension(dbgi, block, op, bits);
134 return gen_zero_extension(dbgi, block, op, bits);
140 * Creates a possible DAG for a constant.
142 static ir_node *create_const_graph_value(dbg_info *dbgi, ir_node *block,
147 // we need to load hi & lo separately
148 if (value < -4096 || value > 4095) {
149 ir_node *hi = new_bd_sparc_HiImm(dbgi, block, (int) value);
150 result = new_bd_sparc_LoImm(dbgi, block, hi, value);
153 result = new_bd_sparc_Mov_imm(dbgi, block, (int) value);
154 be_dep_on_frame(result);
162 * Create a DAG constructing a given Const.
164 * @param irn a Firm const
166 static ir_node *create_const_graph(ir_node *irn, ir_node *block)
168 tarval *tv = get_Const_tarval(irn);
169 ir_mode *mode = get_tarval_mode(tv);
170 dbg_info *dbgi = get_irn_dbg_info(irn);
174 if (mode_is_reference(mode)) {
175 /* SPARC V8 is 32bit, so we can safely convert a reference tarval into Iu */
176 assert(get_mode_size_bits(mode) == get_mode_size_bits(mode_gp));
177 tv = tarval_convert_to(tv, mode_gp);
180 value = get_tarval_long(tv);
181 return create_const_graph_value(dbgi, block, value);
186 MATCH_COMMUTATIVE = 1 << 0,
187 MATCH_SIZE_NEUTRAL = 1 << 1,
190 typedef ir_node* (*new_binop_reg_func) (dbg_info *dbgi, ir_node *block, ir_node *op1, ir_node *op2);
191 typedef ir_node* (*new_binop_fp_func) (dbg_info *dbgi, ir_node *block, ir_node *op1, ir_node *op2, ir_mode *mode);
192 typedef ir_node* (*new_binop_imm_func) (dbg_info *dbgi, ir_node *block, ir_node *op1, int simm13);
195 * checks if a node's value can be encoded as a immediate
198 static bool is_imm_encodeable(const ir_node *node)
202 //assert(mode_is_float_vector(get_irn_mode(node)));
207 val = get_tarval_long(get_Const_tarval(node));
209 return !(val < -4096 || val > 4095);
213 * helper function for binop operations
215 * @param new_binop_reg_func register generation function ptr
216 * @param new_binop_imm_func immediate generation function ptr
218 static ir_node *gen_helper_binop(ir_node *node, match_flags_t flags,
219 new_binop_reg_func new_reg, new_binop_imm_func new_imm)
221 ir_node *block = be_transform_node(get_nodes_block(node));
222 ir_node *op1 = get_binop_left(node);
224 ir_node *op2 = get_binop_right(node);
226 dbg_info *dbgi = get_irn_dbg_info(node);
228 if (is_imm_encodeable(op2)) {
229 ir_node *new_op1 = be_transform_node(op1);
230 return new_imm(dbgi, block, new_op1, get_tarval_long(get_Const_tarval(op2)));
233 new_op2 = be_transform_node(op2);
235 if ((flags & MATCH_COMMUTATIVE) && is_imm_encodeable(op1)) {
236 return new_imm(dbgi, block, new_op2, get_tarval_long(get_Const_tarval(op1)) );
239 new_op1 = be_transform_node(op1);
241 return new_reg(dbgi, block, new_op1, new_op2);
245 * helper function for FP binop operations
247 static ir_node *gen_helper_binfpop(ir_node *node, new_binop_fp_func new_reg)
249 ir_node *block = be_transform_node(get_nodes_block(node));
250 ir_node *op1 = get_binop_left(node);
252 ir_node *op2 = get_binop_right(node);
254 dbg_info *dbgi = get_irn_dbg_info(node);
256 new_op2 = be_transform_node(op2);
257 new_op1 = be_transform_node(op1);
258 return new_reg(dbgi, block, new_op1, new_op2, get_irn_mode(node));
262 * Creates an sparc Add.
264 * @param node FIRM node
265 * @return the created sparc Add node
267 static ir_node *gen_Add(ir_node *node)
269 ir_mode *mode = get_irn_mode(node);
270 ir_node *block = be_transform_node(get_nodes_block(node));
271 dbg_info *dbgi = get_irn_dbg_info(node);
276 if (mode_is_float(mode))
277 panic("FP not implemented yet");
279 return gen_helper_binop(node, MATCH_COMMUTATIVE | MATCH_SIZE_NEUTRAL, new_bd_sparc_Add_reg, new_bd_sparc_Add_imm);
284 * Creates an sparc Sub.
286 * @param node FIRM node
287 * @return the created sparc Sub node
289 static ir_node *gen_Sub(ir_node *node)
291 ir_mode *mode = get_irn_mode(node);
292 ir_node *block = be_transform_node(get_nodes_block(node));
293 dbg_info *dbgi = get_irn_dbg_info(node);
298 if (mode_is_float(mode))
299 panic("FP not implemented yet");
301 return gen_helper_binop(node, MATCH_SIZE_NEUTRAL, new_bd_sparc_Sub_reg, new_bd_sparc_Sub_imm);
308 * @param node the ir Load node
309 * @return the created sparc Load node
311 static ir_node *gen_Load(ir_node *node)
313 ir_mode *mode = get_Load_mode(node);
314 ir_node *block = be_transform_node(get_nodes_block(node));
315 ir_node *ptr = get_Load_ptr(node);
316 ir_node *new_ptr = be_transform_node(ptr);
317 ir_node *mem = get_Load_mem(node);
318 ir_node *new_mem = be_transform_node(mem);
319 dbg_info *dbgi = get_irn_dbg_info(node);
320 ir_node *new_load = NULL;
322 if (mode_is_float(mode))
323 panic("SPARC: no fp implementation yet");
325 new_load = new_bd_sparc_Ld(dbgi, block, new_ptr, new_mem, mode, NULL, 0, 0, false);
326 set_irn_pinned(new_load, get_irn_pinned(node));
334 * Transforms a Store.
336 * @param node the ir Store node
337 * @return the created sparc Store node
339 static ir_node *gen_Store(ir_node *node)
341 ir_node *block = be_transform_node(get_nodes_block(node));
342 ir_node *ptr = get_Store_ptr(node);
343 ir_node *new_ptr = be_transform_node(ptr);
344 ir_node *mem = get_Store_mem(node);
345 ir_node *new_mem = be_transform_node(mem);
346 ir_node *val = get_Store_value(node);
347 ir_node *new_val = be_transform_node(val);
348 ir_mode *mode = get_irn_mode(val);
349 dbg_info *dbgi = get_irn_dbg_info(node);
350 ir_node *new_store = NULL;
352 if (mode_is_float(mode))
353 panic("SPARC: no fp implementation yet");
355 new_store = new_bd_sparc_St(dbgi, block, new_ptr, new_val, new_mem, mode, NULL, 0, 0, false);
361 * Creates an sparc Mul.
362 * returns the lower 32bits of the 64bit multiply result
364 * @return the created sparc Mul node
366 static ir_node *gen_Mul(ir_node *node) {
367 ir_mode *mode = get_irn_mode(node);
368 dbg_info *dbgi = get_irn_dbg_info(node);
371 ir_node *proj_res_low;
373 if (mode_is_float(mode)) {
374 mul = gen_helper_binfpop(node, new_bd_sparc_fMul);
378 assert(mode_is_data(mode));
379 mul = gen_helper_binop(node, MATCH_COMMUTATIVE | MATCH_SIZE_NEUTRAL, new_bd_sparc_Mul_reg, new_bd_sparc_Mul_imm);
380 arch_irn_add_flags(mul, arch_irn_flags_modify_flags);
382 proj_res_low = new_rd_Proj(dbgi, mul, mode_gp, pn_sparc_Mul_low);
387 * Creates an sparc Mulh.
388 * Mulh returns the upper 32bits of a mul instruction
390 * @return the created sparc Mulh node
392 static ir_node *gen_Mulh(ir_node *node) {
393 ir_mode *mode = get_irn_mode(node);
394 dbg_info *dbgi = get_irn_dbg_info(node);
397 ir_node *proj_res_hi;
399 if (mode_is_float(mode))
400 panic("FP not supported yet");
403 assert(mode_is_data(mode));
404 mul = gen_helper_binop(node, MATCH_COMMUTATIVE | MATCH_SIZE_NEUTRAL, new_bd_sparc_Mulh_reg, new_bd_sparc_Mulh_imm);
405 //arch_irn_add_flags(mul, arch_irn_flags_modify_flags);
406 proj_res_hi = new_rd_Proj(dbgi, mul, mode_gp, pn_sparc_Mulh_low);
411 * Creates an sparc Div.
413 * @return the created sparc Div node
415 static ir_node *gen_Div(ir_node *node) {
417 ir_mode *mode = get_irn_mode(node);
421 if (mode_is_float(mode))
422 panic("FP not supported yet");
424 //assert(mode_is_data(mode));
425 div = gen_helper_binop(node, MATCH_SIZE_NEUTRAL, new_bd_sparc_Div_reg, new_bd_sparc_Div_imm);
431 * transform abs node:
439 static ir_node *gen_Abs(ir_node *node) {
440 ir_node *block = be_transform_node(get_nodes_block(node));
441 ir_mode *mode = get_irn_mode(node);
442 dbg_info *dbgi = get_irn_dbg_info(node);
443 ir_node *op = get_Abs_op(node);
445 ir_node *mov, *sra, *xor, *sub, *new_op;
447 if (mode_is_float(mode))
448 panic("FP not supported yet");
450 new_op = be_transform_node(op);
452 mov = new_bd_sparc_Mov_reg(dbgi, block, new_op);
453 sra = new_bd_sparc_Sra_imm(dbgi, block, mov, 31);
454 xor = new_bd_sparc_Xor_reg(dbgi, block, new_op, sra);
455 sub = new_bd_sparc_Sub_reg(dbgi, block, sra, xor);
461 * Transforms a Not node.
463 * @return the created ARM Not node
465 static ir_node *gen_Not(ir_node *node)
467 ir_node *block = be_transform_node(get_nodes_block(node));
468 ir_node *op = get_Not_op(node);
469 ir_node *new_op = be_transform_node(op);
470 dbg_info *dbgi = get_irn_dbg_info(node);
472 return new_bd_sparc_Not(dbgi, block, new_op);
475 static ir_node *gen_And(ir_node *node)
477 ir_mode *mode = get_irn_mode(node);
478 ir_node *block = be_transform_node(get_nodes_block(node));
479 dbg_info *dbgi = get_irn_dbg_info(node);
484 if (mode_is_float(mode))
485 panic("FP not implemented yet");
487 return gen_helper_binop(node, MATCH_COMMUTATIVE, new_bd_sparc_And_reg, new_bd_sparc_And_imm);
490 static ir_node *gen_Or(ir_node *node)
492 ir_mode *mode = get_irn_mode(node);
493 ir_node *block = be_transform_node(get_nodes_block(node));
494 dbg_info *dbgi = get_irn_dbg_info(node);
499 if (mode_is_float(mode))
500 panic("FP not implemented yet");
502 return gen_helper_binop(node, MATCH_COMMUTATIVE, new_bd_sparc_Or_reg, new_bd_sparc_Or_imm);
505 static ir_node *gen_Eor(ir_node *node)
507 ir_mode *mode = get_irn_mode(node);
508 ir_node *block = be_transform_node(get_nodes_block(node));
509 dbg_info *dbgi = get_irn_dbg_info(node);
514 if (mode_is_float(mode))
515 panic("FP not implemented yet");
517 return gen_helper_binop(node, MATCH_COMMUTATIVE, new_bd_sparc_Xor_reg, new_bd_sparc_Xor_imm);
520 static ir_node *gen_Shl(ir_node *node)
522 return gen_helper_binop(node, MATCH_SIZE_NEUTRAL, new_bd_sparc_Sll_reg, new_bd_sparc_Sll_imm);
525 static ir_node *gen_Shr(ir_node *node)
527 return gen_helper_binop(node, MATCH_SIZE_NEUTRAL, new_bd_sparc_Slr_reg, new_bd_sparc_Slr_imm);
530 static ir_node *gen_Shrs(ir_node *node)
532 return gen_helper_binop(node, MATCH_SIZE_NEUTRAL, new_bd_sparc_Sra_reg, new_bd_sparc_Sra_imm);
535 /****** TRANSFORM GENERAL BACKEND NODES ********/
538 * Transforms a Minus node.
541 static ir_node *gen_Minus(ir_node *node)
543 ir_node *block = be_transform_node(get_nodes_block(node));
544 ir_node *op = get_Minus_op(node);
545 ir_node *new_op = be_transform_node(op);
546 dbg_info *dbgi = get_irn_dbg_info(node);
547 ir_mode *mode = get_irn_mode(node);
549 if (mode_is_float(mode)) {
550 panic("FP not implemented yet");
553 assert(mode_is_data(mode));
554 return new_bd_sparc_Minus(dbgi, block, new_op);
557 static ir_node *make_addr(dbg_info *dbgi, ir_entity *entity)
559 ir_node *block = get_irg_start_block(current_ir_graph);
560 ir_node *node = new_bd_sparc_SymConst(dbgi, block, entity);
561 be_dep_on_frame(node);
566 * Create an entity for a given (floatingpoint) tarval
568 static ir_entity *create_float_const_entity(tarval *tv)
570 ir_entity *entity = (ir_entity*) pmap_get(env_cg->constants, tv);
571 ir_initializer_t *initializer;
579 mode = get_tarval_mode(tv);
580 type = get_type_for_mode(mode);
581 glob = get_glob_type();
582 entity = new_entity(glob, id_unique("C%u"), type);
583 set_entity_visibility(entity, ir_visibility_private);
584 add_entity_linkage(entity, IR_LINKAGE_CONSTANT);
586 initializer = create_initializer_tarval(tv);
587 set_entity_initializer(entity, initializer);
589 pmap_insert(env_cg->constants, tv, entity);
594 * Transforms a Const node.
596 * @param node the ir Const node
597 * @return The transformed sparc node.
599 static ir_node *gen_Const(ir_node *node)
601 ir_node *block = be_transform_node(get_nodes_block(node));
602 ir_mode *mode = get_irn_mode(node);
604 if (mode_is_float(mode)) {
605 dbg_info *dbgi = get_irn_dbg_info(node);
606 tarval *tv = get_Const_tarval(node);
607 ir_entity *entity = create_float_const_entity(tv);
608 ir_node *addr = make_addr(dbgi, entity);
609 ir_node *mem = new_NoMem();
611 = new_bd_sparc_Ldf(dbgi, block, addr, mem, mode, NULL, 0, 0, false);
613 ir_node *proj = new_Proj(new_op, mode, pn_sparc_Ldf_res);
617 return create_const_graph(node, block);
622 * @param node the ir AddSP node
623 * @return transformed sparc SAVE node
625 static ir_node *gen_be_AddSP(ir_node *node)
627 ir_node *block = be_transform_node(get_nodes_block(node));
628 ir_node *sz = get_irn_n(node, be_pos_AddSP_size);
629 ir_node *new_sz = be_transform_node(sz);
630 ir_node *sp = get_irn_n(node, be_pos_AddSP_old_sp);
631 ir_node *new_sp = be_transform_node(sp);
632 dbg_info *dbgi = get_irn_dbg_info(node);
633 ir_node *nomem = new_NoMem();
636 /* SPARC stack grows in reverse direction */
637 new_op = new_bd_sparc_SubSP(dbgi, block, new_sp, new_sz, nomem);
645 * @param node the ir SubSP node
646 * @return transformed sparc SAVE node
648 static ir_node *gen_be_SubSP(ir_node *node)
650 ir_node *block = be_transform_node(get_nodes_block(node));
651 ir_node *sz = get_irn_n(node, be_pos_SubSP_size);
652 ir_node *new_sz = be_transform_node(sz);
653 ir_node *sp = get_irn_n(node, be_pos_SubSP_old_sp);
654 ir_node *new_sp = be_transform_node(sp);
655 dbg_info *dbgi = get_irn_dbg_info(node);
656 ir_node *nomem = new_NoMem();
659 /* SPARC stack grows in reverse direction */
660 new_op = new_bd_sparc_AddSP(dbgi, block, new_sp, new_sz, nomem);
665 * transform FrameAddr
667 static ir_node *gen_be_FrameAddr(ir_node *node)
669 ir_node *block = be_transform_node(get_nodes_block(node));
670 ir_entity *ent = be_get_frame_entity(node);
671 ir_node *fp = be_get_FrameAddr_frame(node);
672 ir_node *new_fp = be_transform_node(fp);
673 dbg_info *dbgi = get_irn_dbg_info(node);
675 new_node = new_bd_sparc_FrameAddr(dbgi, block, new_fp, ent);
680 * Transform a be_Copy.
682 static ir_node *gen_be_Copy(ir_node *node)
684 ir_node *result = be_duplicate_node(node);
685 ir_mode *mode = get_irn_mode(result);
687 if (mode_needs_gp_reg(mode)) {
688 set_irn_mode(node, mode_gp);
697 static ir_node *gen_be_Call(ir_node *node)
699 ir_node *res = be_duplicate_node(node);
700 arch_irn_add_flags(res, arch_irn_flags_modify_flags);
705 * Transforms a Switch.
708 static ir_node *gen_SwitchJmp(ir_node *node)
710 ir_node *block = be_transform_node(get_nodes_block(node));
711 ir_node *selector = get_Cond_selector(node);
712 dbg_info *dbgi = get_irn_dbg_info(node);
713 ir_node *new_op = be_transform_node(selector);
714 ir_node *const_graph;
718 const ir_edge_t *edge;
725 foreach_out_edge(node, edge) {
726 proj = get_edge_src_irn(edge);
727 assert(is_Proj(proj) && "Only proj allowed at SwitchJmp");
729 pn = get_Proj_proj(proj);
731 min = pn<min ? pn : min;
732 max = pn>max ? pn : max;
736 n_projs = max - translation + 1;
738 foreach_out_edge(node, edge) {
739 proj = get_edge_src_irn(edge);
740 assert(is_Proj(proj) && "Only proj allowed at SwitchJmp");
742 pn = get_Proj_proj(proj) - translation;
743 set_Proj_proj(proj, pn);
746 const_graph = create_const_graph_value(dbgi, block, translation);
747 sub = new_bd_sparc_Sub_reg(dbgi, block, new_op, const_graph);
748 return new_bd_sparc_SwitchJmp(dbgi, block, sub, n_projs, get_Cond_default_proj(node) - translation);
751 static bool is_cmp_unsigned(ir_node *b_value)
756 if (!is_Proj(b_value))
757 panic("can't determine cond signednes");
758 pred = get_Proj_pred(b_value);
760 panic("can't determine cond signednes (no cmp)");
761 op = get_Cmp_left(pred);
762 return !mode_is_signed(get_irn_mode(op));
766 * Transform Cond nodes
768 static ir_node *gen_Cond(ir_node *node)
770 ir_node *selector = get_Cond_selector(node);
771 ir_mode *mode = get_irn_mode(selector);
779 if (mode != mode_b) {
780 return gen_SwitchJmp(node);
783 // regular if/else jumps
784 assert(is_Proj(selector));
785 assert(is_Cmp(get_Proj_pred(selector)));
787 block = be_transform_node(get_nodes_block(node));
788 dbgi = get_irn_dbg_info(node);
789 flag_node = be_transform_node(get_Proj_pred(selector));
790 pnc = get_Proj_proj(selector);
791 is_unsigned = is_cmp_unsigned(selector);
792 return new_bd_sparc_BXX(dbgi, block, flag_node, pnc, is_unsigned);
798 static ir_node *gen_Cmp(ir_node *node)
800 ir_node *block = be_transform_node(get_nodes_block(node));
801 ir_node *op1 = get_Cmp_left(node);
802 ir_node *op2 = get_Cmp_right(node);
803 ir_mode *cmp_mode = get_irn_mode(op1);
804 dbg_info *dbgi = get_irn_dbg_info(node);
808 if (mode_is_float(cmp_mode)) {
809 panic("FloatCmp not implemented");
813 if (get_mode_size_bits(cmp_mode) != 32) {
814 panic("CmpMode != 32bit not supported yet");
818 assert(get_irn_mode(op2) == cmp_mode);
820 /* compare with 0 can be done with Tst */
822 if (is_Const(op2) && tarval_is_null(get_Const_tarval(op2))) {
823 new_op1 = be_transform_node(op1);
824 return new_bd_sparc_Tst(dbgi, block, new_op1, false,
828 if (is_Const(op1) && tarval_is_null(get_Const_tarval(op1))) {
829 new_op2 = be_transform_node(op2);
830 return new_bd_sparc_Tst(dbgi, block, new_op2, true,
835 /* integer compare */
836 new_op1 = be_transform_node(op1);
837 new_op1 = gen_extension(dbgi, block, new_op1, cmp_mode);
838 new_op2 = be_transform_node(op2);
839 new_op2 = gen_extension(dbgi, block, new_op2, cmp_mode);
840 return new_bd_sparc_Cmp_reg(dbgi, block, new_op1, new_op2);
844 * Transforms a SymConst node.
846 static ir_node *gen_SymConst(ir_node *node)
848 ir_entity *entity = get_SymConst_entity(node);
849 dbg_info *dbgi = get_irn_dbg_info(node);
851 return make_addr(dbgi, entity);
855 * Transforms a Conv node.
858 static ir_node *gen_Conv(ir_node *node)
860 ir_node *block = be_transform_node(get_nodes_block(node));
861 ir_node *op = get_Conv_op(node);
862 ir_node *new_op = be_transform_node(op);
863 ir_mode *src_mode = get_irn_mode(op);
864 ir_mode *dst_mode = get_irn_mode(node);
865 dbg_info *dbg = get_irn_dbg_info(node);
867 int src_bits = get_mode_size_bits(src_mode);
868 int dst_bits = get_mode_size_bits(dst_mode);
870 if (src_mode == dst_mode)
873 if (mode_is_float(src_mode) || mode_is_float(dst_mode)) {
874 assert((src_bits <= 64 && dst_bits <= 64) && "quad FP not implemented");
876 if (mode_is_float(src_mode)) {
877 if (mode_is_float(dst_mode)) {
878 // float -> float conv
879 if (src_bits > dst_bits) {
880 return new_bd_sparc_FsTOd(dbg, block, new_op, dst_mode);
882 return new_bd_sparc_FdTOs(dbg, block, new_op, dst_mode);
888 return new_bd_sparc_FsTOi(dbg, block, new_op, dst_mode);
890 return new_bd_sparc_FdTOi(dbg, block, new_op, dst_mode);
892 panic("quad FP not implemented");
899 return new_bd_sparc_FiTOs(dbg, block, new_op, src_mode);
901 return new_bd_sparc_FiTOd(dbg, block, new_op, src_mode);
903 panic("quad FP not implemented");
906 } else { /* complete in gp registers */
910 if (src_bits == dst_bits) {
911 /* kill unneccessary conv */
915 if (src_bits < dst_bits) {
923 if (upper_bits_clean(new_op, min_mode)) {
927 if (mode_is_signed(min_mode)) {
928 return gen_sign_extension(dbg, block, new_op, min_bits);
930 return gen_zero_extension(dbg, block, new_op, min_bits);
935 static ir_node *gen_Unknown(ir_node *node)
937 ir_node *block = get_nodes_block(node);
938 ir_node *new_block = be_transform_node(block);
939 dbg_info *dbgi = get_irn_dbg_info(node);
941 /* just produce a 0 */
942 ir_mode *mode = get_irn_mode(node);
943 if (mode_is_float(mode)) {
944 panic("FP not implemented");
945 be_dep_on_frame(node);
947 } else if (mode_needs_gp_reg(mode)) {
948 return create_const_graph_value(dbgi, new_block, 0);
951 panic("Unexpected Unknown mode");
955 * Produces the type which sits between the stack args and the locals on the
958 static ir_type *sparc_get_between_type(void)
960 static ir_type *between_type = NULL;
962 if (between_type == NULL) {
963 between_type = new_type_class(new_id_from_str("sparc_between_type"));
964 set_type_size_bytes(between_type, SPARC_MIN_STACKSIZE);
970 static void create_stacklayout(ir_graph *irg)
972 ir_entity *entity = get_irg_entity(irg);
973 ir_type *function_type = get_entity_type(entity);
974 be_stack_layout_t *layout = be_get_irg_stack_layout(irg);
979 /* calling conventions must be decided by now */
980 assert(cconv != NULL);
982 /* construct argument type */
983 arg_type = new_type_struct(id_mangle_u(get_entity_ident(entity), new_id_from_chars("arg_type", 8)));
984 n_params = get_method_n_params(function_type);
985 for (p = 0; p < n_params; ++p) {
986 reg_or_stackslot_t *param = &cconv->parameters[p];
990 if (param->type == NULL)
993 snprintf(buf, sizeof(buf), "param_%d", p);
994 id = new_id_from_str(buf);
995 param->entity = new_entity(arg_type, id, param->type);
996 set_entity_offset(param->entity, param->offset);
999 memset(layout, 0, sizeof(*layout));
1001 layout->frame_type = get_irg_frame_type(irg);
1002 layout->between_type = sparc_get_between_type();
1003 layout->arg_type = arg_type;
1004 layout->initial_offset = 0;
1005 layout->initial_bias = 0;
1006 layout->stack_dir = -1;
1007 layout->sp_relative = false;
1009 assert(N_FRAME_TYPES == 3);
1010 layout->order[0] = layout->frame_type;
1011 layout->order[1] = layout->between_type;
1012 layout->order[2] = layout->arg_type;
1016 * transform the start node to the prolog code + initial barrier
1018 static ir_node *gen_Start(ir_node *node)
1020 ir_graph *irg = get_irn_irg(node);
1021 ir_entity *entity = get_irg_entity(irg);
1022 ir_type *function_type = get_entity_type(entity);
1023 ir_node *block = get_nodes_block(node);
1024 ir_node *new_block = be_transform_node(block);
1025 dbg_info *dbgi = get_irn_dbg_info(node);
1034 /* stackpointer is important at function prolog */
1035 be_prolog_add_reg(abihelper, sp_reg,
1036 arch_register_req_type_produces_sp | arch_register_req_type_ignore);
1037 /* function parameters in registers */
1038 for (i = 0; i < get_method_n_params(function_type); ++i) {
1039 const reg_or_stackslot_t *param = &cconv->parameters[i];
1040 if (param->reg0 != NULL)
1041 be_prolog_add_reg(abihelper, param->reg0, 0);
1042 if (param->reg1 != NULL)
1043 be_prolog_add_reg(abihelper, param->reg1, 0);
1046 start = be_prolog_create_start(abihelper, dbgi, new_block);
1048 mem = be_prolog_get_memory(abihelper);
1049 sp = be_prolog_get_reg_value(abihelper, sp_reg);
1050 save = new_bd_sparc_Save(NULL, block, sp, mem, SPARC_MIN_STACKSIZE);
1051 fp = new_r_Proj(save, mode_gp, pn_sparc_Save_frame);
1052 sp = new_r_Proj(save, mode_gp, pn_sparc_Save_stack);
1053 mem = new_r_Proj(save, mode_M, pn_sparc_Save_mem);
1054 arch_set_irn_register(fp, fp_reg);
1055 arch_set_irn_register(sp, sp_reg);
1057 be_prolog_add_reg(abihelper, fp_reg, arch_register_req_type_ignore);
1058 be_prolog_set_reg_value(abihelper, fp_reg, fp);
1060 sp = be_new_IncSP(sp_reg, new_block, sp, BE_STACK_FRAME_SIZE_EXPAND, 0);
1061 be_prolog_set_reg_value(abihelper, sp_reg, sp);
1062 be_prolog_set_memory(abihelper, mem);
1064 barrier = be_prolog_create_barrier(abihelper, new_block);
1069 static ir_node *get_stack_pointer_for(ir_node *node)
1071 /* get predecessor in stack_order list */
1072 ir_node *stack_pred = be_get_stack_pred(abihelper, node);
1073 ir_node *stack_pred_transformed;
1076 if (stack_pred == NULL) {
1077 /* first stack user in the current block. We can simply use the
1078 * initial sp_proj for it */
1079 ir_node *sp_proj = be_prolog_get_reg_value(abihelper, sp_reg);
1083 stack_pred_transformed = be_transform_node(stack_pred);
1084 stack = pmap_get(node_to_stack, stack_pred);
1085 if (stack == NULL) {
1086 return get_stack_pointer_for(stack_pred);
1093 * transform a Return node into epilogue code + return statement
1095 static ir_node *gen_Return(ir_node *node)
1097 ir_node *block = get_nodes_block(node);
1098 ir_node *new_block = be_transform_node(block);
1099 dbg_info *dbgi = get_irn_dbg_info(node);
1100 ir_node *mem = get_Return_mem(node);
1101 ir_node *new_mem = be_transform_node(mem);
1102 ir_node *sp_proj = get_stack_pointer_for(node);
1103 int n_res = get_Return_n_ress(node);
1108 be_epilog_begin(abihelper);
1109 be_epilog_set_memory(abihelper, new_mem);
1110 /* connect stack pointer with initial stack pointer. fix_stack phase
1111 will later serialize all stack pointer adjusting nodes */
1112 be_epilog_add_reg(abihelper, sp_reg,
1113 arch_register_req_type_produces_sp | arch_register_req_type_ignore,
1117 for (i = 0; i < n_res; ++i) {
1118 ir_node *res_value = get_Return_res(node, i);
1119 ir_node *new_res_value = be_transform_node(res_value);
1120 const reg_or_stackslot_t *slot = &cconv->results[i];
1121 const arch_register_t *reg = slot->reg0;
1122 assert(slot->reg1 == NULL);
1123 be_epilog_add_reg(abihelper, reg, 0, new_res_value);
1126 /* create the barrier before the epilog code */
1127 be_epilog_create_barrier(abihelper, new_block);
1129 /* epilog code: an incsp */
1130 sp_proj = be_epilog_get_reg_value(abihelper, sp_reg);
1131 incsp = be_new_IncSP(sp_reg, new_block, sp_proj,
1132 BE_STACK_FRAME_SIZE_SHRINK, 0);
1133 be_epilog_set_reg_value(abihelper, sp_reg, incsp);
1135 bereturn = be_epilog_create_return(abihelper, dbgi, new_block);
1140 static ir_node *bitcast_int_to_float(dbg_info *dbgi, ir_node *block,
1143 ir_graph *irg = current_ir_graph;
1144 ir_node *stack = get_irg_frame(irg);
1145 ir_node *nomem = new_NoMem();
1146 ir_node *st = new_bd_sparc_St(dbgi, block, stack, node, nomem, mode_gp,
1149 set_irn_pinned(st, op_pin_state_floats);
1151 ldf = new_bd_sparc_Ldf(dbgi, block, stack, st, mode_fp, NULL, 0, 0, true);
1152 set_irn_pinned(ldf, op_pin_state_floats);
1154 return new_Proj(ldf, mode_fp, pn_sparc_Ldf_res);
1157 static ir_node *bitcast_float_to_int(dbg_info *dbgi, ir_node *block,
1160 ir_graph *irg = current_ir_graph;
1161 ir_node *stack = get_irg_frame(irg);
1162 ir_node *nomem = new_NoMem();
1163 ir_node *stf = new_bd_sparc_Stf(dbgi, block, stack, node, nomem, mode_fp,
1166 set_irn_pinned(stf, op_pin_state_floats);
1168 ld = new_bd_sparc_Ld(dbgi, block, stack, stf, mode_gp, NULL, 0, 0, true);
1169 set_irn_pinned(ld, op_pin_state_floats);
1171 return new_Proj(ld, mode_fp, pn_sparc_Ld_res);
1174 static ir_node *gen_Call(ir_node *node)
1176 ir_graph *irg = get_irn_irg(node);
1177 ir_node *callee = get_Call_ptr(node);
1178 ir_node *block = get_nodes_block(node);
1179 ir_node *new_block = be_transform_node(block);
1180 ir_node *mem = get_Call_mem(node);
1181 ir_node *new_mem = be_transform_node(mem);
1182 dbg_info *dbgi = get_irn_dbg_info(node);
1183 ir_type *type = get_Call_type(node);
1184 int n_params = get_Call_n_params(node);
1185 int n_param_regs = sizeof(param_regs)/sizeof(param_regs[0]);
1186 /* max inputs: memory, callee, register arguments */
1187 int max_inputs = 2 + n_param_regs;
1188 ir_node **in = ALLOCAN(ir_node*, max_inputs);
1189 ir_node **sync_ins = ALLOCAN(ir_node*, max_inputs);
1190 struct obstack *obst = be_get_be_obst(irg);
1191 const arch_register_req_t **in_req
1192 = OALLOCNZ(obst, const arch_register_req_t*, max_inputs);
1193 calling_convention_t *cconv
1194 = sparc_decide_calling_convention(type, true);
1198 = sizeof(caller_saves)/sizeof(caller_saves[0]);
1199 ir_entity *entity = NULL;
1200 ir_node *new_frame = get_stack_pointer_for(node);
1209 assert(n_params == get_method_n_params(type));
1211 /* construct arguments */
1214 in_req[in_arity] = arch_no_register_req;
1218 /* stack pointer input */
1219 /* construct an IncSP -> we have to always be sure that the stack is
1220 * aligned even if we don't push arguments on it */
1221 incsp = be_new_IncSP(sp_reg, new_block, new_frame,
1222 cconv->param_stack_size, 1);
1223 in_req[in_arity] = sp_reg->single_req;
1224 in[in_arity] = incsp;
1228 for (p = 0; p < n_params; ++p) {
1229 ir_node *value = get_Call_param(node, p);
1230 ir_node *new_value = be_transform_node(value);
1231 ir_node *new_value1 = NULL;
1232 const reg_or_stackslot_t *param = &cconv->parameters[p];
1233 ir_type *param_type = get_method_param_type(type, p);
1234 ir_mode *mode = get_type_mode(param_type);
1237 if (mode_is_float(mode) && param->reg0 != NULL) {
1238 unsigned size_bits = get_mode_size_bits(mode);
1239 assert(size_bits == 32);
1240 new_value = bitcast_float_to_int(dbgi, new_block, new_value);
1243 /* put value into registers */
1244 if (param->reg0 != NULL) {
1245 in[in_arity] = new_value;
1246 in_req[in_arity] = param->reg0->single_req;
1248 if (new_value1 == NULL)
1251 if (param->reg1 != NULL) {
1252 assert(new_value1 != NULL);
1253 in[in_arity] = new_value1;
1254 in_req[in_arity] = param->reg1->single_req;
1259 /* we need a store if we're here */
1260 if (new_value1 != NULL) {
1261 new_value = new_value1;
1265 /* create a parameter frame if necessary */
1266 if (mode_is_float(mode)) {
1267 str = new_bd_sparc_Stf(dbgi, new_block, incsp, new_value, new_mem,
1268 mode, NULL, 0, param->offset, true);
1270 str = new_bd_sparc_St(dbgi, new_block, incsp, new_value, new_mem,
1271 mode, NULL, 0, param->offset, true);
1273 sync_ins[sync_arity++] = str;
1275 assert(in_arity <= max_inputs);
1277 /* construct memory input */
1278 if (sync_arity == 0) {
1279 in[mem_pos] = new_mem;
1280 } else if (sync_arity == 1) {
1281 in[mem_pos] = sync_ins[0];
1283 in[mem_pos] = new_rd_Sync(NULL, new_block, sync_arity, sync_ins);
1286 if (is_SymConst(callee)) {
1287 entity = get_SymConst_entity(callee);
1289 in[in_arity] = be_transform_node(callee);
1290 in_req[in_arity] = sparc_reg_classes[CLASS_sparc_gp].class_req;
1298 out_arity = 1 + n_caller_saves;
1300 /* create call node */
1301 if (entity != NULL) {
1302 res = new_bd_sparc_Call_imm(dbgi, new_block, in_arity, in, out_arity,
1305 res = new_bd_sparc_Call_reg(dbgi, new_block, in_arity, in, out_arity);
1307 set_sparc_in_req_all(res, in_req);
1309 /* create output register reqs */
1311 arch_set_out_register_req(res, o++, arch_no_register_req);
1312 for (i = 0; i < n_caller_saves; ++i) {
1313 const arch_register_t *reg = caller_saves[i];
1314 arch_set_out_register_req(res, o++, reg->single_req);
1316 assert(o == out_arity);
1318 /* copy pinned attribute */
1319 set_irn_pinned(res, get_irn_pinned(node));
1321 /* IncSP to destroy the call stackframe */
1322 incsp = be_new_IncSP(sp_reg, new_block, incsp, -cconv->param_stack_size, 0);
1323 /* if we are the last IncSP producer in a block then we have to keep
1325 * Note: This here keeps all producers which is more than necessary */
1326 add_irn_dep(incsp, res);
1329 pmap_insert(node_to_stack, node, incsp);
1331 sparc_free_calling_convention(cconv);
1335 static ir_node *gen_Sel(ir_node *node)
1337 dbg_info *dbgi = get_irn_dbg_info(node);
1338 ir_node *block = get_nodes_block(node);
1339 ir_node *new_block = be_transform_node(block);
1340 ir_node *ptr = get_Sel_ptr(node);
1341 ir_node *new_ptr = be_transform_node(ptr);
1342 ir_entity *entity = get_Sel_entity(node);
1344 /* must be the frame pointer all other sels must have been lowered
1346 assert(is_Proj(ptr) && is_Start(get_Proj_pred(ptr)));
1347 /* we should not have value types from parameters anymore - they should be
1349 assert(get_entity_owner(entity) !=
1350 get_method_value_param_type(get_entity_type(get_irg_entity(get_irn_irg(node)))));
1352 return new_bd_sparc_FrameAddr(dbgi, new_block, new_ptr, entity);
1356 * Transform some Phi nodes
1358 static ir_node *gen_Phi(ir_node *node)
1360 const arch_register_req_t *req;
1361 ir_node *block = be_transform_node(get_nodes_block(node));
1362 ir_graph *irg = current_ir_graph;
1363 dbg_info *dbgi = get_irn_dbg_info(node);
1364 ir_mode *mode = get_irn_mode(node);
1367 if (mode_needs_gp_reg(mode)) {
1368 /* we shouldn't have any 64bit stuff around anymore */
1369 assert(get_mode_size_bits(mode) <= 32);
1370 /* all integer operations are on 32bit registers now */
1372 req = sparc_reg_classes[CLASS_sparc_gp].class_req;
1374 req = arch_no_register_req;
1377 /* phi nodes allow loops, so we use the old arguments for now
1378 * and fix this later */
1379 phi = new_ir_node(dbgi, irg, block, op_Phi, mode, get_irn_arity(node), get_irn_in(node) + 1);
1380 copy_node_attr(irg, node, phi);
1381 be_duplicate_deps(node, phi);
1382 arch_set_out_register_req(phi, 0, req);
1383 be_enqueue_preds(node);
1389 * Transform a Proj from a Load.
1391 static ir_node *gen_Proj_Load(ir_node *node)
1393 ir_node *load = get_Proj_pred(node);
1394 ir_node *new_load = be_transform_node(load);
1395 dbg_info *dbgi = get_irn_dbg_info(node);
1396 long proj = get_Proj_proj(node);
1398 /* renumber the proj */
1399 switch (get_sparc_irn_opcode(new_load)) {
1401 /* handle all gp loads equal: they have the same proj numbers. */
1402 if (proj == pn_Load_res) {
1403 return new_rd_Proj(dbgi, new_load, mode_gp, pn_sparc_Ld_res);
1404 } else if (proj == pn_Load_M) {
1405 return new_rd_Proj(dbgi, new_load, mode_M, pn_sparc_Ld_M);
1409 panic("Unsupported Proj from Load");
1412 return be_duplicate_node(node);
1416 * Transform the Projs from a Cmp.
1418 static ir_node *gen_Proj_Cmp(ir_node *node)
1421 panic("not implemented");
1425 * transform Projs from a Div
1427 static ir_node *gen_Proj_Div(ir_node *node)
1429 ir_node *pred = get_Proj_pred(node);
1430 ir_node *new_pred = be_transform_node(pred);
1431 dbg_info *dbgi = get_irn_dbg_info(node);
1432 long proj = get_Proj_proj(node);
1436 if (is_sparc_Div(new_pred)) {
1437 return new_rd_Proj(dbgi, new_pred, mode_gp, pn_sparc_Div_res);
1443 panic("Unsupported Proj from Div");
1446 static ir_node *gen_Proj_Start(ir_node *node)
1448 ir_node *block = get_nodes_block(node);
1449 ir_node *new_block = be_transform_node(block);
1450 ir_node *barrier = be_transform_node(get_Proj_pred(node));
1451 long pn = get_Proj_proj(node);
1453 switch ((pn_Start) pn) {
1454 case pn_Start_X_initial_exec:
1455 /* excahnge ProjX with a jump */
1456 return new_bd_sparc_Ba(NULL, new_block);
1458 return new_r_Proj(barrier, mode_M, 0);
1459 case pn_Start_T_args:
1461 case pn_Start_P_frame_base:
1462 return be_prolog_get_reg_value(abihelper, fp_reg);
1463 case pn_Start_P_tls:
1468 panic("Unexpected start proj: %ld\n", pn);
1471 static ir_node *gen_Proj_Proj_Start(ir_node *node)
1473 long pn = get_Proj_proj(node);
1474 ir_node *block = get_nodes_block(node);
1475 ir_node *new_block = be_transform_node(block);
1476 ir_entity *entity = get_irg_entity(current_ir_graph);
1477 ir_type *method_type = get_entity_type(entity);
1478 ir_type *param_type = get_method_param_type(method_type, pn);
1479 const reg_or_stackslot_t *param;
1481 /* Proj->Proj->Start must be a method argument */
1482 assert(get_Proj_proj(get_Proj_pred(node)) == pn_Start_T_args);
1484 param = &cconv->parameters[pn];
1486 if (param->reg0 != NULL) {
1487 /* argument transmitted in register */
1488 ir_mode *mode = get_type_mode(param_type);
1489 const arch_register_t *reg = param->reg0;
1490 ir_node *value = be_prolog_get_reg_value(abihelper, reg);
1492 if (mode_is_float(mode)) {
1493 /* convert integer value to float */
1494 value = bitcast_int_to_float(NULL, new_block, value);
1498 /* argument transmitted on stack */
1499 ir_node *fp = be_prolog_get_reg_value(abihelper, fp_reg);
1500 ir_node *mem = be_prolog_get_memory(abihelper);
1501 ir_mode *mode = get_type_mode(param->type);
1505 if (mode_is_float(mode)) {
1506 load = new_bd_sparc_Ldf(NULL, new_block, fp, mem, mode,
1507 param->entity, 0, 0, true);
1508 value = new_r_Proj(load, mode_fp, pn_sparc_Ldf_res);
1510 load = new_bd_sparc_Ld(NULL, new_block, fp, mem, mode,
1511 param->entity, 0, 0, true);
1512 value = new_r_Proj(load, mode_gp, pn_sparc_Ld_res);
1514 set_irn_pinned(load, op_pin_state_floats);
1520 static ir_node *gen_Proj_Call(ir_node *node)
1522 long pn = get_Proj_proj(node);
1523 ir_node *call = get_Proj_pred(node);
1524 ir_node *new_call = be_transform_node(call);
1526 switch ((pn_Call) pn) {
1528 return new_r_Proj(new_call, mode_M, 0);
1529 case pn_Call_X_regular:
1530 case pn_Call_X_except:
1531 case pn_Call_T_result:
1532 case pn_Call_P_value_res_base:
1536 panic("Unexpected Call proj %ld\n", pn);
1540 * Finds number of output value of a mode_T node which is constrained to
1541 * a single specific register.
1543 static int find_out_for_reg(ir_node *node, const arch_register_t *reg)
1545 int n_outs = arch_irn_get_n_outs(node);
1548 for (o = 0; o < n_outs; ++o) {
1549 const arch_register_req_t *req = arch_get_out_register_req(node, o);
1550 if (req == reg->single_req)
1556 static ir_node *gen_Proj_Proj_Call(ir_node *node)
1558 long pn = get_Proj_proj(node);
1559 ir_node *call = get_Proj_pred(get_Proj_pred(node));
1560 ir_node *new_call = be_transform_node(call);
1561 ir_type *function_type = get_Call_type(call);
1562 calling_convention_t *cconv
1563 = sparc_decide_calling_convention(function_type, true);
1564 const reg_or_stackslot_t *res = &cconv->results[pn];
1565 const arch_register_t *reg = res->reg0;
1569 assert(res->reg0 != NULL && res->reg1 == NULL);
1570 regn = find_out_for_reg(new_call, reg);
1572 panic("Internal error in calling convention for return %+F", node);
1574 mode = res->reg0->reg_class->mode;
1576 sparc_free_calling_convention(cconv);
1578 return new_r_Proj(new_call, mode, regn);
1582 * Transform a Proj node.
1584 static ir_node *gen_Proj(ir_node *node)
1586 ir_node *pred = get_Proj_pred(node);
1587 long pn = get_Proj_proj(node);
1589 switch (get_irn_opcode(pred)) {
1591 if (pn == pn_Store_M) {
1592 return be_transform_node(pred);
1594 panic("Unsupported Proj from Store");
1598 return gen_Proj_Load(node);
1600 return gen_Proj_Call(node);
1602 return gen_Proj_Cmp(node);
1604 return be_duplicate_node(node);
1606 return gen_Proj_Div(node);
1608 return gen_Proj_Start(node);
1610 ir_node *pred_pred = get_Proj_pred(pred);
1611 if (is_Call(pred_pred)) {
1612 return gen_Proj_Proj_Call(node);
1613 } else if (is_Start(pred_pred)) {
1614 return gen_Proj_Proj_Start(node);
1619 panic("code selection didn't expect Proj after %+F\n", pred);
1627 static ir_node *gen_Jmp(ir_node *node)
1629 ir_node *block = get_nodes_block(node);
1630 ir_node *new_block = be_transform_node(block);
1631 dbg_info *dbgi = get_irn_dbg_info(node);
1633 return new_bd_sparc_Ba(dbgi, new_block);
1637 * configure transformation callbacks
1639 void sparc_register_transformers(void)
1641 be_start_transform_setup();
1643 be_set_transform_function(op_Abs, gen_Abs);
1644 be_set_transform_function(op_Add, gen_Add);
1645 be_set_transform_function(op_And, gen_And);
1646 be_set_transform_function(op_be_AddSP, gen_be_AddSP);
1647 be_set_transform_function(op_be_Call, gen_be_Call);
1648 be_set_transform_function(op_be_Copy, gen_be_Copy);
1649 be_set_transform_function(op_be_FrameAddr, gen_be_FrameAddr);
1650 be_set_transform_function(op_be_SubSP, gen_be_SubSP);
1651 be_set_transform_function(op_Call, gen_Call);
1652 be_set_transform_function(op_Cmp, gen_Cmp);
1653 be_set_transform_function(op_Cond, gen_Cond);
1654 be_set_transform_function(op_Const, gen_Const);
1655 be_set_transform_function(op_Conv, gen_Conv);
1656 be_set_transform_function(op_Div, gen_Div);
1657 be_set_transform_function(op_Eor, gen_Eor);
1658 be_set_transform_function(op_Jmp, gen_Jmp);
1659 be_set_transform_function(op_Load, gen_Load);
1660 be_set_transform_function(op_Minus, gen_Minus);
1661 be_set_transform_function(op_Mul, gen_Mul);
1662 be_set_transform_function(op_Mulh, gen_Mulh);
1663 be_set_transform_function(op_Not, gen_Not);
1664 be_set_transform_function(op_Or, gen_Or);
1665 be_set_transform_function(op_Phi, gen_Phi);
1666 be_set_transform_function(op_Proj, gen_Proj);
1667 be_set_transform_function(op_Return, gen_Return);
1668 be_set_transform_function(op_Sel, gen_Sel);
1669 be_set_transform_function(op_Shl, gen_Shl);
1670 be_set_transform_function(op_Shr, gen_Shr);
1671 be_set_transform_function(op_Shrs, gen_Shrs);
1672 be_set_transform_function(op_Start, gen_Start);
1673 be_set_transform_function(op_Store, gen_Store);
1674 be_set_transform_function(op_Sub, gen_Sub);
1675 be_set_transform_function(op_SymConst, gen_SymConst);
1676 be_set_transform_function(op_Unknown, gen_Unknown);
1678 be_set_transform_function(op_sparc_Save, be_duplicate_node);
1681 /* hack to avoid unused fp proj at start barrier */
1682 static void assure_fp_keep(void)
1684 unsigned n_users = 0;
1685 const ir_edge_t *edge;
1686 ir_node *fp_proj = be_prolog_get_reg_value(abihelper, fp_reg);
1688 foreach_out_edge(fp_proj, edge) {
1689 ir_node *succ = get_edge_src_irn(edge);
1690 if (is_End(succ) || is_Anchor(succ))
1696 ir_node *block = get_nodes_block(fp_proj);
1697 ir_node *in[1] = { fp_proj };
1698 be_new_Keep(block, 1, in);
1703 * Transform a Firm graph into a SPARC graph.
1705 void sparc_transform_graph(sparc_code_gen_t *cg)
1707 ir_graph *irg = cg->irg;
1708 ir_entity *entity = get_irg_entity(irg);
1709 ir_type *frame_type;
1711 sparc_register_transformers();
1714 node_to_stack = pmap_create();
1719 abihelper = be_abihelper_prepare(irg);
1720 be_collect_stacknodes(abihelper);
1721 cconv = sparc_decide_calling_convention(get_entity_type(entity), false);
1722 create_stacklayout(irg);
1724 be_transform_graph(cg->irg, NULL);
1727 be_abihelper_finish(abihelper);
1728 sparc_free_calling_convention(cconv);
1730 frame_type = get_irg_frame_type(irg);
1731 if (get_type_state(frame_type) == layout_undefined)
1732 default_layout_compound_type(frame_type);
1734 pmap_destroy(node_to_stack);
1735 node_to_stack = NULL;
1737 be_add_missing_keeps(irg);
1740 void sparc_init_transform(void)
1742 FIRM_DBG_REGISTER(dbg, "firm.be.sparc.transform");