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 * @param dbgi debug info
102 * @param block the basic block
103 * @param op the original node
104 * @param src_bits number of lower bits that will remain
106 static ir_node *gen_sign_extension(dbg_info *dbgi, ir_node *block, ir_node *op,
109 int shift_width = 32 - src_bits;
110 ir_node *lshift_node = new_bd_sparc_Sll_imm(dbgi, block, op, shift_width);
111 ir_node *rshift_node = new_bd_sparc_Sra_imm(dbgi, block, lshift_node, shift_width);
116 * returns true if it is assured, that the upper bits of a node are "clean"
117 * which means for a 16 or 8 bit value, that the upper bits in the register
118 * are 0 for unsigned and a copy of the last significant bit for signed
121 static bool upper_bits_clean(ir_node *transformed_node, ir_mode *mode)
123 (void) transformed_node;
130 * Extend a value to 32 bit signed/unsigned depending on its mode.
132 * @param dbgi debug info
133 * @param block the basic block
134 * @param op the original node
135 * @param orig_mode the original mode of op
137 static ir_node *gen_extension(dbg_info *dbgi, ir_node *block, ir_node *op,
140 int bits = get_mode_size_bits(orig_mode);
144 if (mode_is_signed(orig_mode)) {
145 return gen_sign_extension(dbgi, block, op, bits);
147 return gen_zero_extension(dbgi, block, op, bits);
152 * Creates a possible DAG for a constant.
154 static ir_node *create_const_graph_value(dbg_info *dbgi, ir_node *block,
159 /* we need to load hi & lo separately */
160 if (value < -4096 || value > 4095) {
161 ir_node *hi = new_bd_sparc_HiImm(dbgi, block, (int) value);
162 result = new_bd_sparc_LoImm(dbgi, block, hi, value);
165 result = new_bd_sparc_Mov_imm(dbgi, block, (int) value);
166 be_dep_on_frame(result);
173 * Create a DAG constructing a given Const.
175 * @param irn a Firm const
177 static ir_node *create_const_graph(ir_node *irn, ir_node *block)
179 tarval *tv = get_Const_tarval(irn);
180 ir_mode *mode = get_tarval_mode(tv);
181 dbg_info *dbgi = get_irn_dbg_info(irn);
185 if (mode_is_reference(mode)) {
186 /* SPARC V8 is 32bit, so we can safely convert a reference tarval into Iu */
187 assert(get_mode_size_bits(mode) == get_mode_size_bits(mode_gp));
188 tv = tarval_convert_to(tv, mode_gp);
191 value = get_tarval_long(tv);
192 return create_const_graph_value(dbgi, block, value);
197 MATCH_COMMUTATIVE = 1 << 0, /**< commutative operation. */
198 MATCH_SIZE_NEUTRAL = 1 << 1,
201 typedef ir_node* (*new_binop_reg_func) (dbg_info *dbgi, ir_node *block, ir_node *op1, ir_node *op2);
202 typedef ir_node* (*new_binop_fp_func) (dbg_info *dbgi, ir_node *block, ir_node *op1, ir_node *op2, ir_mode *mode);
203 typedef ir_node* (*new_binop_imm_func) (dbg_info *dbgi, ir_node *block, ir_node *op1, int simm13);
206 * checks if a node's value can be encoded as a immediate
209 static bool is_imm_encodeable(const ir_node *node)
213 //assert(mode_is_float_vector(get_irn_mode(node)));
218 val = get_tarval_long(get_Const_tarval(node));
220 return -4096 <= val && val <= 4095;
224 * helper function for binop operations
226 * @param new_reg register generation function ptr
227 * @param new_imm immediate generation function ptr
229 static ir_node *gen_helper_binop(ir_node *node, match_flags_t flags,
230 new_binop_reg_func new_reg, new_binop_imm_func new_imm)
232 ir_node *block = be_transform_node(get_nodes_block(node));
233 ir_node *op1 = get_binop_left(node);
235 ir_node *op2 = get_binop_right(node);
237 dbg_info *dbgi = get_irn_dbg_info(node);
239 if (is_imm_encodeable(op2)) {
240 ir_node *new_op1 = be_transform_node(op1);
241 return new_imm(dbgi, block, new_op1, get_tarval_long(get_Const_tarval(op2)));
244 new_op2 = be_transform_node(op2);
246 if ((flags & MATCH_COMMUTATIVE) && is_imm_encodeable(op1)) {
247 return new_imm(dbgi, block, new_op2, get_tarval_long(get_Const_tarval(op1)) );
250 new_op1 = be_transform_node(op1);
252 return new_reg(dbgi, block, new_op1, new_op2);
256 * helper function for FP binop operations
258 static ir_node *gen_helper_binfpop(ir_node *node, ir_mode *mode,
259 new_binop_fp_func new_func)
261 ir_node *block = be_transform_node(get_nodes_block(node));
262 ir_node *op1 = get_binop_left(node);
263 ir_node *new_op1 = be_transform_node(op1);
264 ir_node *op2 = get_binop_right(node);
265 ir_node *new_op2 = be_transform_node(op2);
266 dbg_info *dbgi = get_irn_dbg_info(node);
268 return new_func(dbgi, block, new_op1, new_op2, mode);
272 * Creates an sparc Add.
274 * @param node FIRM node
275 * @return the created sparc Add node
277 static ir_node *gen_Add(ir_node *node)
279 ir_mode *mode = get_irn_mode(node);
281 if (mode_is_float(mode)) {
282 return gen_helper_binfpop(node, mode, new_bd_sparc_fadd);
285 return gen_helper_binop(node, MATCH_COMMUTATIVE | MATCH_SIZE_NEUTRAL, new_bd_sparc_Add_reg, new_bd_sparc_Add_imm);
289 * Creates an sparc Sub.
291 * @param node FIRM node
292 * @return the created sparc Sub node
294 static ir_node *gen_Sub(ir_node *node)
296 ir_mode *mode = get_irn_mode(node);
298 if (mode_is_float(mode)) {
299 return gen_helper_binfpop(node, mode, new_bd_sparc_fsub);
302 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 new_load = new_bd_sparc_Ldf(dbgi, block, new_ptr, new_mem, mode, NULL, 0, 0, false);
325 new_load = new_bd_sparc_Ld(dbgi, block, new_ptr, new_mem, mode, NULL, 0, 0, false);
327 set_irn_pinned(new_load, get_irn_pinned(node));
333 * Transforms a Store.
335 * @param node the ir Store node
336 * @return the created sparc Store node
338 static ir_node *gen_Store(ir_node *node)
340 ir_node *block = be_transform_node(get_nodes_block(node));
341 ir_node *ptr = get_Store_ptr(node);
342 ir_node *new_ptr = be_transform_node(ptr);
343 ir_node *mem = get_Store_mem(node);
344 ir_node *new_mem = be_transform_node(mem);
345 ir_node *val = get_Store_value(node);
346 ir_node *new_val = be_transform_node(val);
347 ir_mode *mode = get_irn_mode(val);
348 dbg_info *dbgi = get_irn_dbg_info(node);
349 ir_node *new_store = NULL;
351 if (mode_is_float(mode)) {
352 new_store = new_bd_sparc_Stf(dbgi, block, new_ptr, new_val, new_mem, mode, NULL, 0, 0, false);
354 new_store = new_bd_sparc_St(dbgi, block, new_ptr, new_val, new_mem, mode, NULL, 0, 0, false);
356 set_irn_pinned(new_store, get_irn_pinned(node));
362 * Creates an sparc Mul.
363 * returns the lower 32bits of the 64bit multiply result
365 * @return the created sparc Mul node
367 static ir_node *gen_Mul(ir_node *node)
369 ir_mode *mode = get_irn_mode(node);
370 if (mode_is_float(mode)) {
371 return gen_helper_binfpop(node, mode, new_bd_sparc_fmul);
374 assert(mode_is_data(mode));
375 return gen_helper_binop(node, MATCH_COMMUTATIVE | MATCH_SIZE_NEUTRAL,
376 new_bd_sparc_Mul_reg, new_bd_sparc_Mul_imm);
380 * Creates an sparc Mulh.
381 * Mulh returns the upper 32bits of a mul instruction
383 * @return the created sparc Mulh node
385 static ir_node *gen_Mulh(ir_node *node)
387 ir_mode *mode = get_irn_mode(node);
389 ir_node *proj_res_hi;
391 if (mode_is_float(mode))
392 panic("FP not supported yet");
395 assert(mode_is_data(mode));
396 mul = gen_helper_binop(node, MATCH_COMMUTATIVE | MATCH_SIZE_NEUTRAL, new_bd_sparc_Mulh_reg, new_bd_sparc_Mulh_imm);
397 //arch_irn_add_flags(mul, arch_irn_flags_modify_flags);
398 proj_res_hi = new_r_Proj(mul, mode_gp, pn_sparc_Mulh_low);
403 * Creates an sparc Div.
405 * @return the created sparc Div node
407 static ir_node *gen_Div(ir_node *node)
409 ir_mode *mode = get_Div_resmode(node);
410 assert(!mode_is_float(mode));
411 return gen_helper_binop(node, MATCH_SIZE_NEUTRAL, new_bd_sparc_Div_reg, new_bd_sparc_Div_imm);
414 static ir_node *gen_Quot(ir_node *node)
416 ir_mode *mode = get_Quot_resmode(node);
417 assert(mode_is_float(mode));
418 return gen_helper_binfpop(node, mode, new_bd_sparc_fdiv);
422 * transform abs node:
430 static ir_node *gen_Abs(ir_node *node) {
431 ir_node *block = be_transform_node(get_nodes_block(node));
432 ir_mode *mode = get_irn_mode(node);
433 dbg_info *dbgi = get_irn_dbg_info(node);
434 ir_node *op = get_Abs_op(node);
436 ir_node *mov, *sra, *xor, *sub, *new_op;
438 if (mode_is_float(mode))
439 panic("FP not supported yet");
441 new_op = be_transform_node(op);
443 mov = new_bd_sparc_Mov_reg(dbgi, block, new_op);
444 sra = new_bd_sparc_Sra_imm(dbgi, block, mov, 31);
445 xor = new_bd_sparc_Xor_reg(dbgi, block, new_op, sra);
446 sub = new_bd_sparc_Sub_reg(dbgi, block, sra, xor);
452 * Transforms a Not node.
454 * @return the created sparc Not node
456 static ir_node *gen_Not(ir_node *node)
458 ir_node *block = be_transform_node(get_nodes_block(node));
459 ir_node *op = get_Not_op(node);
460 ir_node *new_op = be_transform_node(op);
461 dbg_info *dbgi = get_irn_dbg_info(node);
463 return new_bd_sparc_Not(dbgi, block, new_op);
466 static ir_node *gen_And(ir_node *node)
468 return gen_helper_binop(node, MATCH_COMMUTATIVE, new_bd_sparc_And_reg, new_bd_sparc_And_imm);
471 static ir_node *gen_Or(ir_node *node)
473 return gen_helper_binop(node, MATCH_COMMUTATIVE, new_bd_sparc_Or_reg, new_bd_sparc_Or_imm);
476 static ir_node *gen_Eor(ir_node *node)
478 return gen_helper_binop(node, MATCH_COMMUTATIVE, new_bd_sparc_Xor_reg, new_bd_sparc_Xor_imm);
481 static ir_node *gen_Shl(ir_node *node)
483 return gen_helper_binop(node, MATCH_SIZE_NEUTRAL, new_bd_sparc_Sll_reg, new_bd_sparc_Sll_imm);
486 static ir_node *gen_Shr(ir_node *node)
488 return gen_helper_binop(node, MATCH_SIZE_NEUTRAL, new_bd_sparc_Slr_reg, new_bd_sparc_Slr_imm);
491 static ir_node *gen_Shrs(ir_node *node)
493 return gen_helper_binop(node, MATCH_SIZE_NEUTRAL, new_bd_sparc_Sra_reg, new_bd_sparc_Sra_imm);
497 * Transforms a Minus node.
499 static ir_node *gen_Minus(ir_node *node)
501 ir_node *block = be_transform_node(get_nodes_block(node));
502 ir_node *op = get_Minus_op(node);
503 ir_node *new_op = be_transform_node(op);
504 dbg_info *dbgi = get_irn_dbg_info(node);
505 ir_mode *mode = get_irn_mode(node);
507 if (mode_is_float(mode)) {
508 return new_bd_sparc_fneg(dbgi, block, new_op, mode);
511 return new_bd_sparc_Minus(dbgi, block, new_op);
514 static ir_node *make_addr(dbg_info *dbgi, ir_entity *entity)
516 ir_node *block = get_irg_start_block(current_ir_graph);
517 ir_node *node = new_bd_sparc_SymConst(dbgi, block, entity);
518 be_dep_on_frame(node);
523 * Create an entity for a given (floating point) tarval
525 static ir_entity *create_float_const_entity(tarval *tv)
527 ir_entity *entity = (ir_entity*) pmap_get(env_cg->constants, tv);
528 ir_initializer_t *initializer;
536 mode = get_tarval_mode(tv);
537 type = get_type_for_mode(mode);
538 glob = get_glob_type();
539 entity = new_entity(glob, id_unique("C%u"), type);
540 set_entity_visibility(entity, ir_visibility_private);
541 add_entity_linkage(entity, IR_LINKAGE_CONSTANT);
543 initializer = create_initializer_tarval(tv);
544 set_entity_initializer(entity, initializer);
546 pmap_insert(env_cg->constants, tv, entity);
551 * Transforms a Const node.
553 * @param node the ir Const node
554 * @return The transformed sparc node.
556 static ir_node *gen_Const(ir_node *node)
558 ir_node *block = be_transform_node(get_nodes_block(node));
559 ir_mode *mode = get_irn_mode(node);
561 if (mode_is_float(mode)) {
562 dbg_info *dbgi = get_irn_dbg_info(node);
563 tarval *tv = get_Const_tarval(node);
564 ir_entity *entity = create_float_const_entity(tv);
565 ir_node *addr = make_addr(dbgi, entity);
566 ir_node *mem = new_NoMem();
568 = new_bd_sparc_Ldf(dbgi, block, addr, mem, mode, NULL, 0, 0, false);
570 ir_node *proj = new_Proj(new_op, mode, pn_sparc_Ldf_res);
574 return create_const_graph(node, block);
579 * @param node the ir AddSP node
580 * @return transformed sparc SAVE node
582 static ir_node *gen_be_AddSP(ir_node *node)
584 ir_node *block = be_transform_node(get_nodes_block(node));
585 ir_node *sz = get_irn_n(node, be_pos_AddSP_size);
586 ir_node *new_sz = be_transform_node(sz);
587 ir_node *sp = get_irn_n(node, be_pos_AddSP_old_sp);
588 ir_node *new_sp = be_transform_node(sp);
589 dbg_info *dbgi = get_irn_dbg_info(node);
590 ir_node *nomem = new_NoMem();
593 /* SPARC stack grows in reverse direction */
594 new_op = new_bd_sparc_SubSP(dbgi, block, new_sp, new_sz, nomem);
601 * @param node the ir SubSP node
602 * @return transformed sparc SAVE node
604 static ir_node *gen_be_SubSP(ir_node *node)
606 ir_node *block = be_transform_node(get_nodes_block(node));
607 ir_node *sz = get_irn_n(node, be_pos_SubSP_size);
608 ir_node *new_sz = be_transform_node(sz);
609 ir_node *sp = get_irn_n(node, be_pos_SubSP_old_sp);
610 ir_node *new_sp = be_transform_node(sp);
611 dbg_info *dbgi = get_irn_dbg_info(node);
612 ir_node *nomem = new_NoMem();
615 /* SPARC stack grows in reverse direction */
616 new_op = new_bd_sparc_AddSP(dbgi, block, new_sp, new_sz, nomem);
621 * transform FrameAddr
623 static ir_node *gen_be_FrameAddr(ir_node *node)
625 ir_node *block = be_transform_node(get_nodes_block(node));
626 ir_entity *ent = be_get_frame_entity(node);
627 ir_node *fp = be_get_FrameAddr_frame(node);
628 ir_node *new_fp = be_transform_node(fp);
629 dbg_info *dbgi = get_irn_dbg_info(node);
631 new_node = new_bd_sparc_FrameAddr(dbgi, block, new_fp, ent);
636 * Transform a be_Copy.
638 static ir_node *gen_be_Copy(ir_node *node)
640 ir_node *result = be_duplicate_node(node);
641 ir_mode *mode = get_irn_mode(result);
643 if (mode_needs_gp_reg(mode)) {
644 set_irn_mode(node, mode_gp);
653 static ir_node *gen_be_Call(ir_node *node)
655 ir_node *res = be_duplicate_node(node);
656 arch_irn_add_flags(res, arch_irn_flags_modify_flags);
661 * Transforms a Switch.
664 static ir_node *gen_SwitchJmp(ir_node *node)
666 ir_node *block = be_transform_node(get_nodes_block(node));
667 ir_node *selector = get_Cond_selector(node);
668 dbg_info *dbgi = get_irn_dbg_info(node);
669 ir_node *new_op = be_transform_node(selector);
670 ir_node *const_graph;
674 const ir_edge_t *edge;
681 foreach_out_edge(node, edge) {
682 proj = get_edge_src_irn(edge);
683 assert(is_Proj(proj) && "Only proj allowed at SwitchJmp");
685 pn = get_Proj_proj(proj);
687 min = pn<min ? pn : min;
688 max = pn>max ? pn : max;
692 n_projs = max - translation + 1;
694 foreach_out_edge(node, edge) {
695 proj = get_edge_src_irn(edge);
696 assert(is_Proj(proj) && "Only proj allowed at SwitchJmp");
698 pn = get_Proj_proj(proj) - translation;
699 set_Proj_proj(proj, pn);
702 const_graph = create_const_graph_value(dbgi, block, translation);
703 sub = new_bd_sparc_Sub_reg(dbgi, block, new_op, const_graph);
704 return new_bd_sparc_SwitchJmp(dbgi, block, sub, n_projs, get_Cond_default_proj(node) - translation);
707 static bool is_cmp_unsigned(ir_node *b_value)
712 if (!is_Proj(b_value))
713 panic("can't determine cond signednes");
714 pred = get_Proj_pred(b_value);
716 panic("can't determine cond signednes (no cmp)");
717 op = get_Cmp_left(pred);
718 return !mode_is_signed(get_irn_mode(op));
722 * Transform Cond nodes
724 static ir_node *gen_Cond(ir_node *node)
726 ir_node *selector = get_Cond_selector(node);
727 ir_mode *mode = get_irn_mode(selector);
735 if (mode != mode_b) {
736 return gen_SwitchJmp(node);
739 // regular if/else jumps
740 assert(is_Proj(selector));
741 assert(is_Cmp(get_Proj_pred(selector)));
743 block = be_transform_node(get_nodes_block(node));
744 dbgi = get_irn_dbg_info(node);
745 flag_node = be_transform_node(get_Proj_pred(selector));
746 pnc = get_Proj_proj(selector);
747 is_unsigned = is_cmp_unsigned(selector);
748 return new_bd_sparc_BXX(dbgi, block, flag_node, pnc, is_unsigned);
754 static ir_node *gen_Cmp(ir_node *node)
756 ir_node *block = be_transform_node(get_nodes_block(node));
757 ir_node *op1 = get_Cmp_left(node);
758 ir_node *op2 = get_Cmp_right(node);
759 ir_mode *cmp_mode = get_irn_mode(op1);
760 dbg_info *dbgi = get_irn_dbg_info(node);
764 if (mode_is_float(cmp_mode)) {
765 panic("FloatCmp not implemented");
769 if (get_mode_size_bits(cmp_mode) != 32) {
770 panic("CmpMode != 32bit not supported yet");
774 assert(get_irn_mode(op2) == cmp_mode);
776 /* compare with 0 can be done with Tst */
778 if (is_Const(op2) && tarval_is_null(get_Const_tarval(op2))) {
779 new_op1 = be_transform_node(op1);
780 return new_bd_sparc_Tst(dbgi, block, new_op1, false,
784 if (is_Const(op1) && tarval_is_null(get_Const_tarval(op1))) {
785 new_op2 = be_transform_node(op2);
786 return new_bd_sparc_Tst(dbgi, block, new_op2, true,
791 /* integer compare */
792 new_op1 = be_transform_node(op1);
793 new_op1 = gen_extension(dbgi, block, new_op1, cmp_mode);
794 new_op2 = be_transform_node(op2);
795 new_op2 = gen_extension(dbgi, block, new_op2, cmp_mode);
796 return new_bd_sparc_Cmp_reg(dbgi, block, new_op1, new_op2);
800 * Transforms a SymConst node.
802 static ir_node *gen_SymConst(ir_node *node)
804 ir_entity *entity = get_SymConst_entity(node);
805 dbg_info *dbgi = get_irn_dbg_info(node);
807 return make_addr(dbgi, entity);
811 * Transforms a Conv node.
814 static ir_node *gen_Conv(ir_node *node)
816 ir_node *block = be_transform_node(get_nodes_block(node));
817 ir_node *op = get_Conv_op(node);
818 ir_node *new_op = be_transform_node(op);
819 ir_mode *src_mode = get_irn_mode(op);
820 ir_mode *dst_mode = get_irn_mode(node);
821 dbg_info *dbg = get_irn_dbg_info(node);
823 int src_bits = get_mode_size_bits(src_mode);
824 int dst_bits = get_mode_size_bits(dst_mode);
826 if (src_mode == dst_mode)
829 if (mode_is_float(src_mode) || mode_is_float(dst_mode)) {
830 assert((src_bits <= 64 && dst_bits <= 64) && "quad FP not implemented");
832 if (mode_is_float(src_mode)) {
833 if (mode_is_float(dst_mode)) {
834 /* float -> float conv */
835 return new_bd_sparc_fftof(dbg, block, new_op, src_mode, dst_mode);
837 /* float -> int conv */
838 if (!mode_is_signed(dst_mode))
839 panic("float to unsigned not implemented yet");
840 return new_bd_sparc_fftoi(dbg, block, new_op, src_mode);
843 /* int -> float conv */
844 if (!mode_is_signed(src_mode))
845 panic("unsigned to float not implemented yet");
846 return new_bd_sparc_fitof(dbg, block, new_op, dst_mode);
848 } else { /* complete in gp registers */
852 if (src_bits == dst_bits) {
853 /* kill unnecessary conv */
857 if (src_bits < dst_bits) {
865 if (upper_bits_clean(new_op, min_mode)) {
869 if (mode_is_signed(min_mode)) {
870 return gen_sign_extension(dbg, block, new_op, min_bits);
872 return gen_zero_extension(dbg, block, new_op, min_bits);
877 static ir_node *gen_Unknown(ir_node *node)
879 ir_node *block = get_nodes_block(node);
880 ir_node *new_block = be_transform_node(block);
881 dbg_info *dbgi = get_irn_dbg_info(node);
883 /* just produce a 0 */
884 ir_mode *mode = get_irn_mode(node);
885 if (mode_is_float(mode)) {
886 panic("FP not implemented");
887 be_dep_on_frame(node);
889 } else if (mode_needs_gp_reg(mode)) {
890 return create_const_graph_value(dbgi, new_block, 0);
893 panic("Unexpected Unknown mode");
897 * Produces the type which sits between the stack args and the locals on the
900 static ir_type *sparc_get_between_type(void)
902 static ir_type *between_type = NULL;
904 if (between_type == NULL) {
905 between_type = new_type_class(new_id_from_str("sparc_between_type"));
906 set_type_size_bytes(between_type, SPARC_MIN_STACKSIZE);
912 static void create_stacklayout(ir_graph *irg)
914 ir_entity *entity = get_irg_entity(irg);
915 ir_type *function_type = get_entity_type(entity);
916 be_stack_layout_t *layout = be_get_irg_stack_layout(irg);
921 /* calling conventions must be decided by now */
922 assert(cconv != NULL);
924 /* construct argument type */
925 arg_type = new_type_struct(id_mangle_u(get_entity_ident(entity), new_id_from_chars("arg_type", 8)));
926 n_params = get_method_n_params(function_type);
927 for (p = 0; p < n_params; ++p) {
928 reg_or_stackslot_t *param = &cconv->parameters[p];
932 if (param->type == NULL)
935 snprintf(buf, sizeof(buf), "param_%d", p);
936 id = new_id_from_str(buf);
937 param->entity = new_entity(arg_type, id, param->type);
938 set_entity_offset(param->entity, param->offset);
941 memset(layout, 0, sizeof(*layout));
943 layout->frame_type = get_irg_frame_type(irg);
944 layout->between_type = sparc_get_between_type();
945 layout->arg_type = arg_type;
946 layout->initial_offset = 0;
947 layout->initial_bias = 0;
948 layout->stack_dir = -1;
949 layout->sp_relative = false;
951 assert(N_FRAME_TYPES == 3);
952 layout->order[0] = layout->frame_type;
953 layout->order[1] = layout->between_type;
954 layout->order[2] = layout->arg_type;
958 * transform the start node to the prolog code + initial barrier
960 static ir_node *gen_Start(ir_node *node)
962 ir_graph *irg = get_irn_irg(node);
963 ir_entity *entity = get_irg_entity(irg);
964 ir_type *function_type = get_entity_type(entity);
965 ir_node *block = get_nodes_block(node);
966 ir_node *new_block = be_transform_node(block);
967 dbg_info *dbgi = get_irn_dbg_info(node);
976 /* stackpointer is important at function prolog */
977 be_prolog_add_reg(abihelper, sp_reg,
978 arch_register_req_type_produces_sp | arch_register_req_type_ignore);
979 /* function parameters in registers */
980 for (i = 0; i < get_method_n_params(function_type); ++i) {
981 const reg_or_stackslot_t *param = &cconv->parameters[i];
982 if (param->reg0 != NULL)
983 be_prolog_add_reg(abihelper, param->reg0, 0);
984 if (param->reg1 != NULL)
985 be_prolog_add_reg(abihelper, param->reg1, 0);
988 start = be_prolog_create_start(abihelper, dbgi, new_block);
990 mem = be_prolog_get_memory(abihelper);
991 sp = be_prolog_get_reg_value(abihelper, sp_reg);
992 save = new_bd_sparc_Save(NULL, block, sp, mem, SPARC_MIN_STACKSIZE);
993 fp = new_r_Proj(save, mode_gp, pn_sparc_Save_frame);
994 sp = new_r_Proj(save, mode_gp, pn_sparc_Save_stack);
995 mem = new_r_Proj(save, mode_M, pn_sparc_Save_mem);
996 arch_set_irn_register(fp, fp_reg);
997 arch_set_irn_register(sp, sp_reg);
999 be_prolog_add_reg(abihelper, fp_reg, arch_register_req_type_ignore);
1000 be_prolog_set_reg_value(abihelper, fp_reg, fp);
1002 sp = be_new_IncSP(sp_reg, new_block, sp, BE_STACK_FRAME_SIZE_EXPAND, 0);
1003 be_prolog_set_reg_value(abihelper, sp_reg, sp);
1004 be_prolog_set_memory(abihelper, mem);
1006 barrier = be_prolog_create_barrier(abihelper, new_block);
1011 static ir_node *get_stack_pointer_for(ir_node *node)
1013 /* get predecessor in stack_order list */
1014 ir_node *stack_pred = be_get_stack_pred(abihelper, node);
1015 ir_node *stack_pred_transformed;
1018 if (stack_pred == NULL) {
1019 /* first stack user in the current block. We can simply use the
1020 * initial sp_proj for it */
1021 ir_node *sp_proj = be_prolog_get_reg_value(abihelper, sp_reg);
1025 stack_pred_transformed = be_transform_node(stack_pred);
1026 stack = pmap_get(node_to_stack, stack_pred);
1027 if (stack == NULL) {
1028 return get_stack_pointer_for(stack_pred);
1035 * transform a Return node into epilogue code + return statement
1037 static ir_node *gen_Return(ir_node *node)
1039 ir_node *block = get_nodes_block(node);
1040 ir_node *new_block = be_transform_node(block);
1041 dbg_info *dbgi = get_irn_dbg_info(node);
1042 ir_node *mem = get_Return_mem(node);
1043 ir_node *new_mem = be_transform_node(mem);
1044 ir_node *sp_proj = get_stack_pointer_for(node);
1045 int n_res = get_Return_n_ress(node);
1050 be_epilog_begin(abihelper);
1051 be_epilog_set_memory(abihelper, new_mem);
1052 /* connect stack pointer with initial stack pointer. fix_stack phase
1053 will later serialize all stack pointer adjusting nodes */
1054 be_epilog_add_reg(abihelper, sp_reg,
1055 arch_register_req_type_produces_sp | arch_register_req_type_ignore,
1059 for (i = 0; i < n_res; ++i) {
1060 ir_node *res_value = get_Return_res(node, i);
1061 ir_node *new_res_value = be_transform_node(res_value);
1062 const reg_or_stackslot_t *slot = &cconv->results[i];
1063 const arch_register_t *reg = slot->reg0;
1064 assert(slot->reg1 == NULL);
1065 be_epilog_add_reg(abihelper, reg, 0, new_res_value);
1068 /* create the barrier before the epilog code */
1069 be_epilog_create_barrier(abihelper, new_block);
1071 /* epilog code: an incsp */
1072 sp_proj = be_epilog_get_reg_value(abihelper, sp_reg);
1073 incsp = be_new_IncSP(sp_reg, new_block, sp_proj,
1074 BE_STACK_FRAME_SIZE_SHRINK, 0);
1075 be_epilog_set_reg_value(abihelper, sp_reg, incsp);
1077 bereturn = be_epilog_create_return(abihelper, dbgi, new_block);
1082 static ir_node *bitcast_int_to_float(dbg_info *dbgi, ir_node *block,
1085 ir_graph *irg = current_ir_graph;
1086 ir_node *stack = get_irg_frame(irg);
1087 ir_node *nomem = new_NoMem();
1088 ir_node *st = new_bd_sparc_St(dbgi, block, stack, node, nomem, mode_gp,
1091 set_irn_pinned(st, op_pin_state_floats);
1093 ldf = new_bd_sparc_Ldf(dbgi, block, stack, st, mode_fp, NULL, 0, 0, true);
1094 set_irn_pinned(ldf, op_pin_state_floats);
1096 return new_Proj(ldf, mode_fp, pn_sparc_Ldf_res);
1099 static ir_node *bitcast_float_to_int(dbg_info *dbgi, ir_node *block,
1102 ir_graph *irg = current_ir_graph;
1103 ir_node *stack = get_irg_frame(irg);
1104 ir_node *nomem = new_NoMem();
1105 ir_node *stf = new_bd_sparc_Stf(dbgi, block, stack, node, nomem, mode_fp,
1108 set_irn_pinned(stf, op_pin_state_floats);
1110 ld = new_bd_sparc_Ld(dbgi, block, stack, stf, mode_gp, NULL, 0, 0, true);
1111 set_irn_pinned(ld, op_pin_state_floats);
1113 return new_Proj(ld, mode_fp, pn_sparc_Ld_res);
1116 static ir_node *gen_Call(ir_node *node)
1118 ir_graph *irg = get_irn_irg(node);
1119 ir_node *callee = get_Call_ptr(node);
1120 ir_node *block = get_nodes_block(node);
1121 ir_node *new_block = be_transform_node(block);
1122 ir_node *mem = get_Call_mem(node);
1123 ir_node *new_mem = be_transform_node(mem);
1124 dbg_info *dbgi = get_irn_dbg_info(node);
1125 ir_type *type = get_Call_type(node);
1126 int n_params = get_Call_n_params(node);
1127 int n_param_regs = sizeof(param_regs)/sizeof(param_regs[0]);
1128 /* max inputs: memory, callee, register arguments */
1129 int max_inputs = 2 + n_param_regs;
1130 ir_node **in = ALLOCAN(ir_node*, max_inputs);
1131 ir_node **sync_ins = ALLOCAN(ir_node*, max_inputs);
1132 struct obstack *obst = be_get_be_obst(irg);
1133 const arch_register_req_t **in_req
1134 = OALLOCNZ(obst, const arch_register_req_t*, max_inputs);
1135 calling_convention_t *cconv
1136 = sparc_decide_calling_convention(type, true);
1140 = sizeof(caller_saves)/sizeof(caller_saves[0]);
1141 ir_entity *entity = NULL;
1142 ir_node *new_frame = get_stack_pointer_for(node);
1151 assert(n_params == get_method_n_params(type));
1153 /* construct arguments */
1156 in_req[in_arity] = arch_no_register_req;
1160 /* stack pointer input */
1161 /* construct an IncSP -> we have to always be sure that the stack is
1162 * aligned even if we don't push arguments on it */
1163 incsp = be_new_IncSP(sp_reg, new_block, new_frame,
1164 cconv->param_stack_size, 1);
1165 in_req[in_arity] = sp_reg->single_req;
1166 in[in_arity] = incsp;
1170 for (p = 0; p < n_params; ++p) {
1171 ir_node *value = get_Call_param(node, p);
1172 ir_node *new_value = be_transform_node(value);
1173 ir_node *new_value1 = NULL;
1174 const reg_or_stackslot_t *param = &cconv->parameters[p];
1175 ir_type *param_type = get_method_param_type(type, p);
1176 ir_mode *mode = get_type_mode(param_type);
1179 if (mode_is_float(mode) && param->reg0 != NULL) {
1180 unsigned size_bits = get_mode_size_bits(mode);
1181 assert(size_bits == 32);
1182 new_value = bitcast_float_to_int(dbgi, new_block, new_value);
1185 /* put value into registers */
1186 if (param->reg0 != NULL) {
1187 in[in_arity] = new_value;
1188 in_req[in_arity] = param->reg0->single_req;
1190 if (new_value1 == NULL)
1193 if (param->reg1 != NULL) {
1194 assert(new_value1 != NULL);
1195 in[in_arity] = new_value1;
1196 in_req[in_arity] = param->reg1->single_req;
1201 /* we need a store if we're here */
1202 if (new_value1 != NULL) {
1203 new_value = new_value1;
1207 /* create a parameter frame if necessary */
1208 if (mode_is_float(mode)) {
1209 str = new_bd_sparc_Stf(dbgi, new_block, incsp, new_value, new_mem,
1210 mode, NULL, 0, param->offset, true);
1212 str = new_bd_sparc_St(dbgi, new_block, incsp, new_value, new_mem,
1213 mode, NULL, 0, param->offset, true);
1215 sync_ins[sync_arity++] = str;
1217 assert(in_arity <= max_inputs);
1219 /* construct memory input */
1220 if (sync_arity == 0) {
1221 in[mem_pos] = new_mem;
1222 } else if (sync_arity == 1) {
1223 in[mem_pos] = sync_ins[0];
1225 in[mem_pos] = new_rd_Sync(NULL, new_block, sync_arity, sync_ins);
1228 if (is_SymConst(callee)) {
1229 entity = get_SymConst_entity(callee);
1231 in[in_arity] = be_transform_node(callee);
1232 in_req[in_arity] = sparc_reg_classes[CLASS_sparc_gp].class_req;
1240 out_arity = 1 + n_caller_saves;
1242 /* create call node */
1243 if (entity != NULL) {
1244 res = new_bd_sparc_Call_imm(dbgi, new_block, in_arity, in, out_arity,
1247 res = new_bd_sparc_Call_reg(dbgi, new_block, in_arity, in, out_arity);
1249 set_sparc_in_req_all(res, in_req);
1251 /* create output register reqs */
1253 arch_set_out_register_req(res, o++, arch_no_register_req);
1254 for (i = 0; i < n_caller_saves; ++i) {
1255 const arch_register_t *reg = caller_saves[i];
1256 arch_set_out_register_req(res, o++, reg->single_req);
1258 assert(o == out_arity);
1260 /* copy pinned attribute */
1261 set_irn_pinned(res, get_irn_pinned(node));
1263 /* IncSP to destroy the call stackframe */
1264 incsp = be_new_IncSP(sp_reg, new_block, incsp, -cconv->param_stack_size, 0);
1265 /* if we are the last IncSP producer in a block then we have to keep
1267 * Note: This here keeps all producers which is more than necessary */
1268 add_irn_dep(incsp, res);
1271 pmap_insert(node_to_stack, node, incsp);
1273 sparc_free_calling_convention(cconv);
1277 static ir_node *gen_Sel(ir_node *node)
1279 dbg_info *dbgi = get_irn_dbg_info(node);
1280 ir_node *block = get_nodes_block(node);
1281 ir_node *new_block = be_transform_node(block);
1282 ir_node *ptr = get_Sel_ptr(node);
1283 ir_node *new_ptr = be_transform_node(ptr);
1284 ir_entity *entity = get_Sel_entity(node);
1286 /* must be the frame pointer all other sels must have been lowered
1288 assert(is_Proj(ptr) && is_Start(get_Proj_pred(ptr)));
1289 /* we should not have value types from parameters anymore - they should be
1291 assert(get_entity_owner(entity) !=
1292 get_method_value_param_type(get_entity_type(get_irg_entity(get_irn_irg(node)))));
1294 return new_bd_sparc_FrameAddr(dbgi, new_block, new_ptr, entity);
1298 * Transform some Phi nodes
1300 static ir_node *gen_Phi(ir_node *node)
1302 const arch_register_req_t *req;
1303 ir_node *block = be_transform_node(get_nodes_block(node));
1304 ir_graph *irg = current_ir_graph;
1305 dbg_info *dbgi = get_irn_dbg_info(node);
1306 ir_mode *mode = get_irn_mode(node);
1309 if (mode_needs_gp_reg(mode)) {
1310 /* we shouldn't have any 64bit stuff around anymore */
1311 assert(get_mode_size_bits(mode) <= 32);
1312 /* all integer operations are on 32bit registers now */
1314 req = sparc_reg_classes[CLASS_sparc_gp].class_req;
1316 req = arch_no_register_req;
1319 /* phi nodes allow loops, so we use the old arguments for now
1320 * and fix this later */
1321 phi = new_ir_node(dbgi, irg, block, op_Phi, mode, get_irn_arity(node), get_irn_in(node) + 1);
1322 copy_node_attr(irg, node, phi);
1323 be_duplicate_deps(node, phi);
1324 arch_set_out_register_req(phi, 0, req);
1325 be_enqueue_preds(node);
1330 * Transform a Proj from a Load.
1332 static ir_node *gen_Proj_Load(ir_node *node)
1334 ir_node *load = get_Proj_pred(node);
1335 ir_node *new_load = be_transform_node(load);
1336 dbg_info *dbgi = get_irn_dbg_info(node);
1337 long pn = get_Proj_proj(node);
1339 /* renumber the proj */
1340 switch (get_sparc_irn_opcode(new_load)) {
1342 /* handle all gp loads equal: they have the same proj numbers. */
1343 if (pn == pn_Load_res) {
1344 return new_rd_Proj(dbgi, new_load, mode_gp, pn_sparc_Ld_res);
1345 } else if (pn == pn_Load_M) {
1346 return new_rd_Proj(dbgi, new_load, mode_M, pn_sparc_Ld_M);
1350 if (pn == pn_Load_res) {
1351 return new_rd_Proj(dbgi, new_load, mode_fp, pn_sparc_Ldf_res);
1352 } else if (pn == pn_Load_M) {
1353 return new_rd_Proj(dbgi, new_load, mode_M, pn_sparc_Ld_M);
1359 panic("Unsupported Proj from Load");
1362 static ir_node *gen_Proj_Store(ir_node *node)
1364 ir_node *store = get_Proj_pred(node);
1365 ir_node *new_store = be_transform_node(store);
1366 long pn = get_Proj_proj(node);
1368 /* renumber the proj */
1369 switch (get_sparc_irn_opcode(new_store)) {
1371 if (pn == pn_Store_M) {
1376 if (pn == pn_Store_M) {
1383 panic("Unsupported Proj from Store");
1387 * Transform the Projs from a Cmp.
1389 static ir_node *gen_Proj_Cmp(ir_node *node)
1392 panic("not implemented");
1396 * transform Projs from a Div
1398 static ir_node *gen_Proj_Div(ir_node *node)
1400 ir_node *pred = get_Proj_pred(node);
1401 ir_node *new_pred = be_transform_node(pred);
1402 long pn = get_Proj_proj(node);
1404 assert(is_sparc_Div(new_pred));
1407 return new_r_Proj(new_pred, mode_gp, pn_sparc_Div_res);
1409 return new_r_Proj(new_pred, mode_gp, pn_sparc_Div_M);
1413 panic("Unsupported Proj from Div");
1416 static ir_node *gen_Proj_Quot(ir_node *node)
1418 ir_node *pred = get_Proj_pred(node);
1419 ir_node *new_pred = be_transform_node(pred);
1420 long pn = get_Proj_proj(node);
1422 assert(is_sparc_fdiv(new_pred));
1425 return new_r_Proj(new_pred, mode_gp, pn_sparc_fdiv_res);
1427 return new_r_Proj(new_pred, mode_gp, pn_sparc_fdiv_M);
1431 panic("Unsupported Proj from Quot");
1434 static ir_node *gen_Proj_Start(ir_node *node)
1436 ir_node *block = get_nodes_block(node);
1437 ir_node *new_block = be_transform_node(block);
1438 ir_node *barrier = be_transform_node(get_Proj_pred(node));
1439 long pn = get_Proj_proj(node);
1441 switch ((pn_Start) pn) {
1442 case pn_Start_X_initial_exec:
1443 /* exchange ProjX with a jump */
1444 return new_bd_sparc_Ba(NULL, new_block);
1446 return new_r_Proj(barrier, mode_M, 0);
1447 case pn_Start_T_args:
1449 case pn_Start_P_frame_base:
1450 return be_prolog_get_reg_value(abihelper, fp_reg);
1451 case pn_Start_P_tls:
1456 panic("Unexpected start proj: %ld\n", pn);
1459 static ir_node *gen_Proj_Proj_Start(ir_node *node)
1461 long pn = get_Proj_proj(node);
1462 ir_node *block = get_nodes_block(node);
1463 ir_node *new_block = be_transform_node(block);
1464 ir_entity *entity = get_irg_entity(current_ir_graph);
1465 ir_type *method_type = get_entity_type(entity);
1466 ir_type *param_type = get_method_param_type(method_type, pn);
1467 const reg_or_stackslot_t *param;
1469 /* Proj->Proj->Start must be a method argument */
1470 assert(get_Proj_proj(get_Proj_pred(node)) == pn_Start_T_args);
1472 param = &cconv->parameters[pn];
1474 if (param->reg0 != NULL) {
1475 /* argument transmitted in register */
1476 ir_mode *mode = get_type_mode(param_type);
1477 const arch_register_t *reg = param->reg0;
1478 ir_node *value = be_prolog_get_reg_value(abihelper, reg);
1480 if (mode_is_float(mode)) {
1481 /* convert integer value to float */
1482 value = bitcast_int_to_float(NULL, new_block, value);
1486 /* argument transmitted on stack */
1487 ir_node *fp = be_prolog_get_reg_value(abihelper, fp_reg);
1488 ir_node *mem = be_prolog_get_memory(abihelper);
1489 ir_mode *mode = get_type_mode(param->type);
1493 if (mode_is_float(mode)) {
1494 load = new_bd_sparc_Ldf(NULL, new_block, fp, mem, mode,
1495 param->entity, 0, 0, true);
1496 value = new_r_Proj(load, mode_fp, pn_sparc_Ldf_res);
1498 load = new_bd_sparc_Ld(NULL, new_block, fp, mem, mode,
1499 param->entity, 0, 0, true);
1500 value = new_r_Proj(load, mode_gp, pn_sparc_Ld_res);
1502 set_irn_pinned(load, op_pin_state_floats);
1508 static ir_node *gen_Proj_Call(ir_node *node)
1510 long pn = get_Proj_proj(node);
1511 ir_node *call = get_Proj_pred(node);
1512 ir_node *new_call = be_transform_node(call);
1514 switch ((pn_Call) pn) {
1516 return new_r_Proj(new_call, mode_M, 0);
1517 case pn_Call_X_regular:
1518 case pn_Call_X_except:
1519 case pn_Call_T_result:
1520 case pn_Call_P_value_res_base:
1524 panic("Unexpected Call proj %ld\n", pn);
1528 * Finds number of output value of a mode_T node which is constrained to
1529 * a single specific register.
1531 static int find_out_for_reg(ir_node *node, const arch_register_t *reg)
1533 int n_outs = arch_irn_get_n_outs(node);
1536 for (o = 0; o < n_outs; ++o) {
1537 const arch_register_req_t *req = arch_get_out_register_req(node, o);
1538 if (req == reg->single_req)
1544 static ir_node *gen_Proj_Proj_Call(ir_node *node)
1546 long pn = get_Proj_proj(node);
1547 ir_node *call = get_Proj_pred(get_Proj_pred(node));
1548 ir_node *new_call = be_transform_node(call);
1549 ir_type *function_type = get_Call_type(call);
1550 calling_convention_t *cconv
1551 = sparc_decide_calling_convention(function_type, true);
1552 const reg_or_stackslot_t *res = &cconv->results[pn];
1553 const arch_register_t *reg = res->reg0;
1557 assert(res->reg0 != NULL && res->reg1 == NULL);
1558 regn = find_out_for_reg(new_call, reg);
1560 panic("Internal error in calling convention for return %+F", node);
1562 mode = res->reg0->reg_class->mode;
1564 sparc_free_calling_convention(cconv);
1566 return new_r_Proj(new_call, mode, regn);
1570 * Transform a Proj node.
1572 static ir_node *gen_Proj(ir_node *node)
1574 ir_node *pred = get_Proj_pred(node);
1576 switch (get_irn_opcode(pred)) {
1578 return gen_Proj_Store(node);
1580 return gen_Proj_Load(node);
1582 return gen_Proj_Call(node);
1584 return gen_Proj_Cmp(node);
1586 return be_duplicate_node(node);
1588 return gen_Proj_Div(node);
1590 return gen_Proj_Quot(node);
1592 return gen_Proj_Start(node);
1594 ir_node *pred_pred = get_Proj_pred(pred);
1595 if (is_Call(pred_pred)) {
1596 return gen_Proj_Proj_Call(node);
1597 } else if (is_Start(pred_pred)) {
1598 return gen_Proj_Proj_Start(node);
1603 panic("code selection didn't expect Proj after %+F\n", pred);
1610 static ir_node *gen_Jmp(ir_node *node)
1612 ir_node *block = get_nodes_block(node);
1613 ir_node *new_block = be_transform_node(block);
1614 dbg_info *dbgi = get_irn_dbg_info(node);
1616 return new_bd_sparc_Ba(dbgi, new_block);
1620 * configure transformation callbacks
1622 void sparc_register_transformers(void)
1624 be_start_transform_setup();
1626 be_set_transform_function(op_Abs, gen_Abs);
1627 be_set_transform_function(op_Add, gen_Add);
1628 be_set_transform_function(op_And, gen_And);
1629 be_set_transform_function(op_be_AddSP, gen_be_AddSP);
1630 be_set_transform_function(op_be_Call, gen_be_Call);
1631 be_set_transform_function(op_be_Copy, gen_be_Copy);
1632 be_set_transform_function(op_be_FrameAddr, gen_be_FrameAddr);
1633 be_set_transform_function(op_be_SubSP, gen_be_SubSP);
1634 be_set_transform_function(op_Call, gen_Call);
1635 be_set_transform_function(op_Cmp, gen_Cmp);
1636 be_set_transform_function(op_Cond, gen_Cond);
1637 be_set_transform_function(op_Const, gen_Const);
1638 be_set_transform_function(op_Conv, gen_Conv);
1639 be_set_transform_function(op_Div, gen_Div);
1640 be_set_transform_function(op_Eor, gen_Eor);
1641 be_set_transform_function(op_Jmp, gen_Jmp);
1642 be_set_transform_function(op_Load, gen_Load);
1643 be_set_transform_function(op_Minus, gen_Minus);
1644 be_set_transform_function(op_Mul, gen_Mul);
1645 be_set_transform_function(op_Mulh, gen_Mulh);
1646 be_set_transform_function(op_Not, gen_Not);
1647 be_set_transform_function(op_Or, gen_Or);
1648 be_set_transform_function(op_Phi, gen_Phi);
1649 be_set_transform_function(op_Proj, gen_Proj);
1650 be_set_transform_function(op_Quot, gen_Quot);
1651 be_set_transform_function(op_Return, gen_Return);
1652 be_set_transform_function(op_Sel, gen_Sel);
1653 be_set_transform_function(op_Shl, gen_Shl);
1654 be_set_transform_function(op_Shr, gen_Shr);
1655 be_set_transform_function(op_Shrs, gen_Shrs);
1656 be_set_transform_function(op_Start, gen_Start);
1657 be_set_transform_function(op_Store, gen_Store);
1658 be_set_transform_function(op_Sub, gen_Sub);
1659 be_set_transform_function(op_SymConst, gen_SymConst);
1660 be_set_transform_function(op_Unknown, gen_Unknown);
1662 be_set_transform_function(op_sparc_Save, be_duplicate_node);
1665 /* hack to avoid unused fp proj at start barrier */
1666 static void assure_fp_keep(void)
1668 unsigned n_users = 0;
1669 const ir_edge_t *edge;
1670 ir_node *fp_proj = be_prolog_get_reg_value(abihelper, fp_reg);
1672 foreach_out_edge(fp_proj, edge) {
1673 ir_node *succ = get_edge_src_irn(edge);
1674 if (is_End(succ) || is_Anchor(succ))
1680 ir_node *block = get_nodes_block(fp_proj);
1681 ir_node *in[1] = { fp_proj };
1682 be_new_Keep(block, 1, in);
1687 * Transform a Firm graph into a SPARC graph.
1689 void sparc_transform_graph(sparc_code_gen_t *cg)
1691 ir_graph *irg = cg->irg;
1692 ir_entity *entity = get_irg_entity(irg);
1693 ir_type *frame_type;
1695 sparc_register_transformers();
1698 node_to_stack = pmap_create();
1703 abihelper = be_abihelper_prepare(irg);
1704 be_collect_stacknodes(abihelper);
1705 cconv = sparc_decide_calling_convention(get_entity_type(entity), false);
1706 create_stacklayout(irg);
1708 be_transform_graph(cg->irg, NULL);
1711 be_abihelper_finish(abihelper);
1712 sparc_free_calling_convention(cconv);
1714 frame_type = get_irg_frame_type(irg);
1715 if (get_type_state(frame_type) == layout_undefined)
1716 default_layout_compound_type(frame_type);
1718 pmap_destroy(node_to_stack);
1719 node_to_stack = NULL;
1721 be_add_missing_keeps(irg);
1724 void sparc_init_transform(void)
1726 FIRM_DBG_REGISTER(dbg, "firm.be.sparc.transform");