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);
153 * Creates a possible DAG for a constant.
155 static ir_node *create_const_graph_value(dbg_info *dbgi, ir_node *block,
160 /* we need to load hi & lo separately */
161 if (value < -4096 || value > 4095) {
162 ir_node *hi = new_bd_sparc_HiImm(dbgi, block, (int) value);
163 result = new_bd_sparc_LoImm(dbgi, block, hi, value);
166 result = new_bd_sparc_Mov_imm(dbgi, block, (int) value);
167 be_dep_on_frame(result);
175 * Create a DAG constructing a given Const.
177 * @param irn a Firm const
179 static ir_node *create_const_graph(ir_node *irn, ir_node *block)
181 tarval *tv = get_Const_tarval(irn);
182 ir_mode *mode = get_tarval_mode(tv);
183 dbg_info *dbgi = get_irn_dbg_info(irn);
187 if (mode_is_reference(mode)) {
188 /* SPARC V8 is 32bit, so we can safely convert a reference tarval into Iu */
189 assert(get_mode_size_bits(mode) == get_mode_size_bits(mode_gp));
190 tv = tarval_convert_to(tv, mode_gp);
193 value = get_tarval_long(tv);
194 return create_const_graph_value(dbgi, block, value);
199 MATCH_COMMUTATIVE = 1 << 0, /**< commutative operation. */
200 MATCH_SIZE_NEUTRAL = 1 << 1,
203 typedef ir_node* (*new_binop_reg_func) (dbg_info *dbgi, ir_node *block, ir_node *op1, ir_node *op2);
204 typedef ir_node* (*new_binop_fp_func) (dbg_info *dbgi, ir_node *block, ir_node *op1, ir_node *op2, ir_mode *mode);
205 typedef ir_node* (*new_binop_imm_func) (dbg_info *dbgi, ir_node *block, ir_node *op1, int simm13);
208 * checks if a node's value can be encoded as a immediate
211 static bool is_imm_encodeable(const ir_node *node)
215 //assert(mode_is_float_vector(get_irn_mode(node)));
220 val = get_tarval_long(get_Const_tarval(node));
222 return -4096 <= val && val <= 4095;
226 * helper function for binop operations
228 * @param new_reg register generation function ptr
229 * @param new_imm immediate generation function ptr
231 static ir_node *gen_helper_binop(ir_node *node, match_flags_t flags,
232 new_binop_reg_func new_reg, new_binop_imm_func new_imm)
234 ir_node *block = be_transform_node(get_nodes_block(node));
235 ir_node *op1 = get_binop_left(node);
237 ir_node *op2 = get_binop_right(node);
239 dbg_info *dbgi = get_irn_dbg_info(node);
241 if (is_imm_encodeable(op2)) {
242 ir_node *new_op1 = be_transform_node(op1);
243 return new_imm(dbgi, block, new_op1, get_tarval_long(get_Const_tarval(op2)));
246 new_op2 = be_transform_node(op2);
248 if ((flags & MATCH_COMMUTATIVE) && is_imm_encodeable(op1)) {
249 return new_imm(dbgi, block, new_op2, get_tarval_long(get_Const_tarval(op1)) );
252 new_op1 = be_transform_node(op1);
254 return new_reg(dbgi, block, new_op1, new_op2);
258 * helper function for FP binop operations
260 static ir_node *gen_helper_binfpop(ir_node *node, new_binop_fp_func new_reg)
262 ir_node *block = be_transform_node(get_nodes_block(node));
263 ir_node *op1 = get_binop_left(node);
265 ir_node *op2 = get_binop_right(node);
267 dbg_info *dbgi = get_irn_dbg_info(node);
269 new_op2 = be_transform_node(op2);
270 new_op1 = be_transform_node(op1);
271 return new_reg(dbgi, block, new_op1, new_op2, get_irn_mode(node));
275 * Creates an sparc Add.
277 * @param node FIRM node
278 * @return the created sparc Add node
280 static ir_node *gen_Add(ir_node *node)
282 ir_mode *mode = get_irn_mode(node);
284 if (mode_is_float(mode))
285 panic("FP not implemented yet");
287 return gen_helper_binop(node, MATCH_COMMUTATIVE | MATCH_SIZE_NEUTRAL, new_bd_sparc_Add_reg, new_bd_sparc_Add_imm);
292 * Creates an sparc Sub.
294 * @param node FIRM node
295 * @return the created sparc Sub node
297 static ir_node *gen_Sub(ir_node *node)
299 ir_mode *mode = get_irn_mode(node);
300 if (mode_is_float(mode))
301 panic("FP not implemented yet");
303 return gen_helper_binop(node, MATCH_SIZE_NEUTRAL, new_bd_sparc_Sub_reg, new_bd_sparc_Sub_imm);
310 * @param node the ir Load node
311 * @return the created sparc Load node
313 static ir_node *gen_Load(ir_node *node)
315 ir_mode *mode = get_Load_mode(node);
316 ir_node *block = be_transform_node(get_nodes_block(node));
317 ir_node *ptr = get_Load_ptr(node);
318 ir_node *new_ptr = be_transform_node(ptr);
319 ir_node *mem = get_Load_mem(node);
320 ir_node *new_mem = be_transform_node(mem);
321 dbg_info *dbgi = get_irn_dbg_info(node);
322 ir_node *new_load = NULL;
324 if (mode_is_float(mode))
325 panic("SPARC: no fp implementation yet");
327 new_load = new_bd_sparc_Ld(dbgi, block, new_ptr, new_mem, mode, NULL, 0, 0, false);
328 set_irn_pinned(new_load, get_irn_pinned(node));
336 * Transforms a Store.
338 * @param node the ir Store node
339 * @return the created sparc Store node
341 static ir_node *gen_Store(ir_node *node)
343 ir_node *block = be_transform_node(get_nodes_block(node));
344 ir_node *ptr = get_Store_ptr(node);
345 ir_node *new_ptr = be_transform_node(ptr);
346 ir_node *mem = get_Store_mem(node);
347 ir_node *new_mem = be_transform_node(mem);
348 ir_node *val = get_Store_value(node);
349 ir_node *new_val = be_transform_node(val);
350 ir_mode *mode = get_irn_mode(val);
351 dbg_info *dbgi = get_irn_dbg_info(node);
352 ir_node *new_store = NULL;
354 if (mode_is_float(mode))
355 panic("SPARC: no fp implementation yet");
357 new_store = new_bd_sparc_St(dbgi, block, new_ptr, new_val, new_mem, mode, NULL, 0, 0, false);
363 * Creates an sparc Mul.
364 * returns the lower 32bits of the 64bit multiply result
366 * @return the created sparc Mul node
368 static ir_node *gen_Mul(ir_node *node) {
369 ir_mode *mode = get_irn_mode(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_r_Proj(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);
395 ir_node *proj_res_hi;
397 if (mode_is_float(mode))
398 panic("FP not supported yet");
401 assert(mode_is_data(mode));
402 mul = gen_helper_binop(node, MATCH_COMMUTATIVE | MATCH_SIZE_NEUTRAL, new_bd_sparc_Mulh_reg, new_bd_sparc_Mulh_imm);
403 //arch_irn_add_flags(mul, arch_irn_flags_modify_flags);
404 proj_res_hi = new_r_Proj(mul, mode_gp, pn_sparc_Mulh_low);
409 * Creates an sparc Div.
411 * @return the created sparc Div node
413 static ir_node *gen_Div(ir_node *node) {
415 ir_mode *mode = get_irn_mode(node);
419 if (mode_is_float(mode))
420 panic("FP not supported yet");
422 //assert(mode_is_data(mode));
423 div = gen_helper_binop(node, MATCH_SIZE_NEUTRAL, new_bd_sparc_Div_reg, new_bd_sparc_Div_imm);
429 * transform abs node:
437 static ir_node *gen_Abs(ir_node *node) {
438 ir_node *block = be_transform_node(get_nodes_block(node));
439 ir_mode *mode = get_irn_mode(node);
440 dbg_info *dbgi = get_irn_dbg_info(node);
441 ir_node *op = get_Abs_op(node);
443 ir_node *mov, *sra, *xor, *sub, *new_op;
445 if (mode_is_float(mode))
446 panic("FP not supported yet");
448 new_op = be_transform_node(op);
450 mov = new_bd_sparc_Mov_reg(dbgi, block, new_op);
451 sra = new_bd_sparc_Sra_imm(dbgi, block, mov, 31);
452 xor = new_bd_sparc_Xor_reg(dbgi, block, new_op, sra);
453 sub = new_bd_sparc_Sub_reg(dbgi, block, sra, xor);
459 * Transforms a Not node.
461 * @return the created sparc Not node
463 static ir_node *gen_Not(ir_node *node)
465 ir_node *block = be_transform_node(get_nodes_block(node));
466 ir_node *op = get_Not_op(node);
467 ir_node *new_op = be_transform_node(op);
468 dbg_info *dbgi = get_irn_dbg_info(node);
470 return new_bd_sparc_Not(dbgi, block, new_op);
473 static ir_node *gen_And(ir_node *node)
475 return gen_helper_binop(node, MATCH_COMMUTATIVE, new_bd_sparc_And_reg, new_bd_sparc_And_imm);
478 static ir_node *gen_Or(ir_node *node)
480 return gen_helper_binop(node, MATCH_COMMUTATIVE, new_bd_sparc_Or_reg, new_bd_sparc_Or_imm);
483 static ir_node *gen_Eor(ir_node *node)
485 return gen_helper_binop(node, MATCH_COMMUTATIVE, new_bd_sparc_Xor_reg, new_bd_sparc_Xor_imm);
488 static ir_node *gen_Shl(ir_node *node)
490 return gen_helper_binop(node, MATCH_SIZE_NEUTRAL, new_bd_sparc_Sll_reg, new_bd_sparc_Sll_imm);
493 static ir_node *gen_Shr(ir_node *node)
495 return gen_helper_binop(node, MATCH_SIZE_NEUTRAL, new_bd_sparc_Slr_reg, new_bd_sparc_Slr_imm);
498 static ir_node *gen_Shrs(ir_node *node)
500 return gen_helper_binop(node, MATCH_SIZE_NEUTRAL, new_bd_sparc_Sra_reg, new_bd_sparc_Sra_imm);
503 /****** TRANSFORM GENERAL BACKEND NODES ********/
506 * Transforms a Minus node.
509 static ir_node *gen_Minus(ir_node *node)
511 ir_node *block = be_transform_node(get_nodes_block(node));
512 ir_node *op = get_Minus_op(node);
513 ir_node *new_op = be_transform_node(op);
514 dbg_info *dbgi = get_irn_dbg_info(node);
515 ir_mode *mode = get_irn_mode(node);
517 if (mode_is_float(mode)) {
518 panic("FP not implemented yet");
521 assert(mode_is_data(mode));
522 return new_bd_sparc_Minus(dbgi, block, new_op);
525 static ir_node *make_addr(dbg_info *dbgi, ir_entity *entity)
527 ir_node *block = get_irg_start_block(current_ir_graph);
528 ir_node *node = new_bd_sparc_SymConst(dbgi, block, entity);
529 be_dep_on_frame(node);
534 * Create an entity for a given (floating point) tarval
536 static ir_entity *create_float_const_entity(tarval *tv)
538 ir_entity *entity = (ir_entity*) pmap_get(env_cg->constants, tv);
539 ir_initializer_t *initializer;
547 mode = get_tarval_mode(tv);
548 type = get_type_for_mode(mode);
549 glob = get_glob_type();
550 entity = new_entity(glob, id_unique("C%u"), type);
551 set_entity_visibility(entity, ir_visibility_private);
552 add_entity_linkage(entity, IR_LINKAGE_CONSTANT);
554 initializer = create_initializer_tarval(tv);
555 set_entity_initializer(entity, initializer);
557 pmap_insert(env_cg->constants, tv, entity);
562 * Transforms a Const node.
564 * @param node the ir Const node
565 * @return The transformed sparc node.
567 static ir_node *gen_Const(ir_node *node)
569 ir_node *block = be_transform_node(get_nodes_block(node));
570 ir_mode *mode = get_irn_mode(node);
572 if (mode_is_float(mode)) {
573 dbg_info *dbgi = get_irn_dbg_info(node);
574 tarval *tv = get_Const_tarval(node);
575 ir_entity *entity = create_float_const_entity(tv);
576 ir_node *addr = make_addr(dbgi, entity);
577 ir_node *mem = new_NoMem();
579 = new_bd_sparc_Ldf(dbgi, block, addr, mem, mode, NULL, 0, 0, false);
581 ir_node *proj = new_Proj(new_op, mode, pn_sparc_Ldf_res);
585 return create_const_graph(node, block);
590 * @param node the ir AddSP node
591 * @return transformed sparc SAVE node
593 static ir_node *gen_be_AddSP(ir_node *node)
595 ir_node *block = be_transform_node(get_nodes_block(node));
596 ir_node *sz = get_irn_n(node, be_pos_AddSP_size);
597 ir_node *new_sz = be_transform_node(sz);
598 ir_node *sp = get_irn_n(node, be_pos_AddSP_old_sp);
599 ir_node *new_sp = be_transform_node(sp);
600 dbg_info *dbgi = get_irn_dbg_info(node);
601 ir_node *nomem = new_NoMem();
604 /* SPARC stack grows in reverse direction */
605 new_op = new_bd_sparc_SubSP(dbgi, block, new_sp, new_sz, nomem);
613 * @param node the ir SubSP node
614 * @return transformed sparc SAVE node
616 static ir_node *gen_be_SubSP(ir_node *node)
618 ir_node *block = be_transform_node(get_nodes_block(node));
619 ir_node *sz = get_irn_n(node, be_pos_SubSP_size);
620 ir_node *new_sz = be_transform_node(sz);
621 ir_node *sp = get_irn_n(node, be_pos_SubSP_old_sp);
622 ir_node *new_sp = be_transform_node(sp);
623 dbg_info *dbgi = get_irn_dbg_info(node);
624 ir_node *nomem = new_NoMem();
627 /* SPARC stack grows in reverse direction */
628 new_op = new_bd_sparc_AddSP(dbgi, block, new_sp, new_sz, nomem);
633 * transform FrameAddr
635 static ir_node *gen_be_FrameAddr(ir_node *node)
637 ir_node *block = be_transform_node(get_nodes_block(node));
638 ir_entity *ent = be_get_frame_entity(node);
639 ir_node *fp = be_get_FrameAddr_frame(node);
640 ir_node *new_fp = be_transform_node(fp);
641 dbg_info *dbgi = get_irn_dbg_info(node);
643 new_node = new_bd_sparc_FrameAddr(dbgi, block, new_fp, ent);
648 * Transform a be_Copy.
650 static ir_node *gen_be_Copy(ir_node *node)
652 ir_node *result = be_duplicate_node(node);
653 ir_mode *mode = get_irn_mode(result);
655 if (mode_needs_gp_reg(mode)) {
656 set_irn_mode(node, mode_gp);
665 static ir_node *gen_be_Call(ir_node *node)
667 ir_node *res = be_duplicate_node(node);
668 arch_irn_add_flags(res, arch_irn_flags_modify_flags);
673 * Transforms a Switch.
676 static ir_node *gen_SwitchJmp(ir_node *node)
678 ir_node *block = be_transform_node(get_nodes_block(node));
679 ir_node *selector = get_Cond_selector(node);
680 dbg_info *dbgi = get_irn_dbg_info(node);
681 ir_node *new_op = be_transform_node(selector);
682 ir_node *const_graph;
686 const ir_edge_t *edge;
693 foreach_out_edge(node, edge) {
694 proj = get_edge_src_irn(edge);
695 assert(is_Proj(proj) && "Only proj allowed at SwitchJmp");
697 pn = get_Proj_proj(proj);
699 min = pn<min ? pn : min;
700 max = pn>max ? pn : max;
704 n_projs = max - translation + 1;
706 foreach_out_edge(node, edge) {
707 proj = get_edge_src_irn(edge);
708 assert(is_Proj(proj) && "Only proj allowed at SwitchJmp");
710 pn = get_Proj_proj(proj) - translation;
711 set_Proj_proj(proj, pn);
714 const_graph = create_const_graph_value(dbgi, block, translation);
715 sub = new_bd_sparc_Sub_reg(dbgi, block, new_op, const_graph);
716 return new_bd_sparc_SwitchJmp(dbgi, block, sub, n_projs, get_Cond_default_proj(node) - translation);
719 static bool is_cmp_unsigned(ir_node *b_value)
724 if (!is_Proj(b_value))
725 panic("can't determine cond signednes");
726 pred = get_Proj_pred(b_value);
728 panic("can't determine cond signednes (no cmp)");
729 op = get_Cmp_left(pred);
730 return !mode_is_signed(get_irn_mode(op));
734 * Transform Cond nodes
736 static ir_node *gen_Cond(ir_node *node)
738 ir_node *selector = get_Cond_selector(node);
739 ir_mode *mode = get_irn_mode(selector);
747 if (mode != mode_b) {
748 return gen_SwitchJmp(node);
751 // regular if/else jumps
752 assert(is_Proj(selector));
753 assert(is_Cmp(get_Proj_pred(selector)));
755 block = be_transform_node(get_nodes_block(node));
756 dbgi = get_irn_dbg_info(node);
757 flag_node = be_transform_node(get_Proj_pred(selector));
758 pnc = get_Proj_proj(selector);
759 is_unsigned = is_cmp_unsigned(selector);
760 return new_bd_sparc_BXX(dbgi, block, flag_node, pnc, is_unsigned);
766 static ir_node *gen_Cmp(ir_node *node)
768 ir_node *block = be_transform_node(get_nodes_block(node));
769 ir_node *op1 = get_Cmp_left(node);
770 ir_node *op2 = get_Cmp_right(node);
771 ir_mode *cmp_mode = get_irn_mode(op1);
772 dbg_info *dbgi = get_irn_dbg_info(node);
776 if (mode_is_float(cmp_mode)) {
777 panic("FloatCmp not implemented");
781 if (get_mode_size_bits(cmp_mode) != 32) {
782 panic("CmpMode != 32bit not supported yet");
786 assert(get_irn_mode(op2) == cmp_mode);
788 /* compare with 0 can be done with Tst */
790 if (is_Const(op2) && tarval_is_null(get_Const_tarval(op2))) {
791 new_op1 = be_transform_node(op1);
792 return new_bd_sparc_Tst(dbgi, block, new_op1, false,
796 if (is_Const(op1) && tarval_is_null(get_Const_tarval(op1))) {
797 new_op2 = be_transform_node(op2);
798 return new_bd_sparc_Tst(dbgi, block, new_op2, true,
803 /* integer compare */
804 new_op1 = be_transform_node(op1);
805 new_op1 = gen_extension(dbgi, block, new_op1, cmp_mode);
806 new_op2 = be_transform_node(op2);
807 new_op2 = gen_extension(dbgi, block, new_op2, cmp_mode);
808 return new_bd_sparc_Cmp_reg(dbgi, block, new_op1, new_op2);
812 * Transforms a SymConst node.
814 static ir_node *gen_SymConst(ir_node *node)
816 ir_entity *entity = get_SymConst_entity(node);
817 dbg_info *dbgi = get_irn_dbg_info(node);
819 return make_addr(dbgi, entity);
823 * Transforms a Conv node.
826 static ir_node *gen_Conv(ir_node *node)
828 ir_node *block = be_transform_node(get_nodes_block(node));
829 ir_node *op = get_Conv_op(node);
830 ir_node *new_op = be_transform_node(op);
831 ir_mode *src_mode = get_irn_mode(op);
832 ir_mode *dst_mode = get_irn_mode(node);
833 dbg_info *dbg = get_irn_dbg_info(node);
835 int src_bits = get_mode_size_bits(src_mode);
836 int dst_bits = get_mode_size_bits(dst_mode);
838 if (src_mode == dst_mode)
841 if (mode_is_float(src_mode) || mode_is_float(dst_mode)) {
842 assert((src_bits <= 64 && dst_bits <= 64) && "quad FP not implemented");
844 if (mode_is_float(src_mode)) {
845 if (mode_is_float(dst_mode)) {
846 /* float -> float conv */
847 if (src_bits > dst_bits) {
848 return new_bd_sparc_FsTOd(dbg, block, new_op, dst_mode);
850 return new_bd_sparc_FdTOs(dbg, block, new_op, dst_mode);
853 /* float -> int conv */
856 return new_bd_sparc_FsTOi(dbg, block, new_op, dst_mode);
858 return new_bd_sparc_FdTOi(dbg, block, new_op, dst_mode);
860 panic("quad FP not implemented");
864 /* int -> float conv */
867 return new_bd_sparc_FiTOs(dbg, block, new_op, src_mode);
869 return new_bd_sparc_FiTOd(dbg, block, new_op, src_mode);
871 panic("quad FP not implemented");
874 } else { /* complete in gp registers */
878 if (src_bits == dst_bits) {
879 /* kill unnecessary conv */
883 if (src_bits < dst_bits) {
891 if (upper_bits_clean(new_op, min_mode)) {
895 if (mode_is_signed(min_mode)) {
896 return gen_sign_extension(dbg, block, new_op, min_bits);
898 return gen_zero_extension(dbg, block, new_op, min_bits);
903 static ir_node *gen_Unknown(ir_node *node)
905 ir_node *block = get_nodes_block(node);
906 ir_node *new_block = be_transform_node(block);
907 dbg_info *dbgi = get_irn_dbg_info(node);
909 /* just produce a 0 */
910 ir_mode *mode = get_irn_mode(node);
911 if (mode_is_float(mode)) {
912 panic("FP not implemented");
913 be_dep_on_frame(node);
915 } else if (mode_needs_gp_reg(mode)) {
916 return create_const_graph_value(dbgi, new_block, 0);
919 panic("Unexpected Unknown mode");
923 * Produces the type which sits between the stack args and the locals on the
926 static ir_type *sparc_get_between_type(void)
928 static ir_type *between_type = NULL;
930 if (between_type == NULL) {
931 between_type = new_type_class(new_id_from_str("sparc_between_type"));
932 set_type_size_bytes(between_type, SPARC_MIN_STACKSIZE);
938 static void create_stacklayout(ir_graph *irg)
940 ir_entity *entity = get_irg_entity(irg);
941 ir_type *function_type = get_entity_type(entity);
942 be_stack_layout_t *layout = be_get_irg_stack_layout(irg);
947 /* calling conventions must be decided by now */
948 assert(cconv != NULL);
950 /* construct argument type */
951 arg_type = new_type_struct(id_mangle_u(get_entity_ident(entity), new_id_from_chars("arg_type", 8)));
952 n_params = get_method_n_params(function_type);
953 for (p = 0; p < n_params; ++p) {
954 reg_or_stackslot_t *param = &cconv->parameters[p];
958 if (param->type == NULL)
961 snprintf(buf, sizeof(buf), "param_%d", p);
962 id = new_id_from_str(buf);
963 param->entity = new_entity(arg_type, id, param->type);
964 set_entity_offset(param->entity, param->offset);
967 memset(layout, 0, sizeof(*layout));
969 layout->frame_type = get_irg_frame_type(irg);
970 layout->between_type = sparc_get_between_type();
971 layout->arg_type = arg_type;
972 layout->initial_offset = 0;
973 layout->initial_bias = 0;
974 layout->stack_dir = -1;
975 layout->sp_relative = false;
977 assert(N_FRAME_TYPES == 3);
978 layout->order[0] = layout->frame_type;
979 layout->order[1] = layout->between_type;
980 layout->order[2] = layout->arg_type;
984 * transform the start node to the prolog code + initial barrier
986 static ir_node *gen_Start(ir_node *node)
988 ir_graph *irg = get_irn_irg(node);
989 ir_entity *entity = get_irg_entity(irg);
990 ir_type *function_type = get_entity_type(entity);
991 ir_node *block = get_nodes_block(node);
992 ir_node *new_block = be_transform_node(block);
993 dbg_info *dbgi = get_irn_dbg_info(node);
1002 /* stackpointer is important at function prolog */
1003 be_prolog_add_reg(abihelper, sp_reg,
1004 arch_register_req_type_produces_sp | arch_register_req_type_ignore);
1005 /* function parameters in registers */
1006 for (i = 0; i < get_method_n_params(function_type); ++i) {
1007 const reg_or_stackslot_t *param = &cconv->parameters[i];
1008 if (param->reg0 != NULL)
1009 be_prolog_add_reg(abihelper, param->reg0, 0);
1010 if (param->reg1 != NULL)
1011 be_prolog_add_reg(abihelper, param->reg1, 0);
1014 start = be_prolog_create_start(abihelper, dbgi, new_block);
1016 mem = be_prolog_get_memory(abihelper);
1017 sp = be_prolog_get_reg_value(abihelper, sp_reg);
1018 save = new_bd_sparc_Save(NULL, block, sp, mem, SPARC_MIN_STACKSIZE);
1019 fp = new_r_Proj(save, mode_gp, pn_sparc_Save_frame);
1020 sp = new_r_Proj(save, mode_gp, pn_sparc_Save_stack);
1021 mem = new_r_Proj(save, mode_M, pn_sparc_Save_mem);
1022 arch_set_irn_register(fp, fp_reg);
1023 arch_set_irn_register(sp, sp_reg);
1025 be_prolog_add_reg(abihelper, fp_reg, arch_register_req_type_ignore);
1026 be_prolog_set_reg_value(abihelper, fp_reg, fp);
1028 sp = be_new_IncSP(sp_reg, new_block, sp, BE_STACK_FRAME_SIZE_EXPAND, 0);
1029 be_prolog_set_reg_value(abihelper, sp_reg, sp);
1030 be_prolog_set_memory(abihelper, mem);
1032 barrier = be_prolog_create_barrier(abihelper, new_block);
1037 static ir_node *get_stack_pointer_for(ir_node *node)
1039 /* get predecessor in stack_order list */
1040 ir_node *stack_pred = be_get_stack_pred(abihelper, node);
1041 ir_node *stack_pred_transformed;
1044 if (stack_pred == NULL) {
1045 /* first stack user in the current block. We can simply use the
1046 * initial sp_proj for it */
1047 ir_node *sp_proj = be_prolog_get_reg_value(abihelper, sp_reg);
1051 stack_pred_transformed = be_transform_node(stack_pred);
1052 stack = pmap_get(node_to_stack, stack_pred);
1053 if (stack == NULL) {
1054 return get_stack_pointer_for(stack_pred);
1061 * transform a Return node into epilogue code + return statement
1063 static ir_node *gen_Return(ir_node *node)
1065 ir_node *block = get_nodes_block(node);
1066 ir_node *new_block = be_transform_node(block);
1067 dbg_info *dbgi = get_irn_dbg_info(node);
1068 ir_node *mem = get_Return_mem(node);
1069 ir_node *new_mem = be_transform_node(mem);
1070 ir_node *sp_proj = get_stack_pointer_for(node);
1071 int n_res = get_Return_n_ress(node);
1076 be_epilog_begin(abihelper);
1077 be_epilog_set_memory(abihelper, new_mem);
1078 /* connect stack pointer with initial stack pointer. fix_stack phase
1079 will later serialize all stack pointer adjusting nodes */
1080 be_epilog_add_reg(abihelper, sp_reg,
1081 arch_register_req_type_produces_sp | arch_register_req_type_ignore,
1085 for (i = 0; i < n_res; ++i) {
1086 ir_node *res_value = get_Return_res(node, i);
1087 ir_node *new_res_value = be_transform_node(res_value);
1088 const reg_or_stackslot_t *slot = &cconv->results[i];
1089 const arch_register_t *reg = slot->reg0;
1090 assert(slot->reg1 == NULL);
1091 be_epilog_add_reg(abihelper, reg, 0, new_res_value);
1094 /* create the barrier before the epilog code */
1095 be_epilog_create_barrier(abihelper, new_block);
1097 /* epilog code: an incsp */
1098 sp_proj = be_epilog_get_reg_value(abihelper, sp_reg);
1099 incsp = be_new_IncSP(sp_reg, new_block, sp_proj,
1100 BE_STACK_FRAME_SIZE_SHRINK, 0);
1101 be_epilog_set_reg_value(abihelper, sp_reg, incsp);
1103 bereturn = be_epilog_create_return(abihelper, dbgi, new_block);
1108 static ir_node *bitcast_int_to_float(dbg_info *dbgi, ir_node *block,
1111 ir_graph *irg = current_ir_graph;
1112 ir_node *stack = get_irg_frame(irg);
1113 ir_node *nomem = new_NoMem();
1114 ir_node *st = new_bd_sparc_St(dbgi, block, stack, node, nomem, mode_gp,
1117 set_irn_pinned(st, op_pin_state_floats);
1119 ldf = new_bd_sparc_Ldf(dbgi, block, stack, st, mode_fp, NULL, 0, 0, true);
1120 set_irn_pinned(ldf, op_pin_state_floats);
1122 return new_Proj(ldf, mode_fp, pn_sparc_Ldf_res);
1125 static ir_node *bitcast_float_to_int(dbg_info *dbgi, ir_node *block,
1128 ir_graph *irg = current_ir_graph;
1129 ir_node *stack = get_irg_frame(irg);
1130 ir_node *nomem = new_NoMem();
1131 ir_node *stf = new_bd_sparc_Stf(dbgi, block, stack, node, nomem, mode_fp,
1134 set_irn_pinned(stf, op_pin_state_floats);
1136 ld = new_bd_sparc_Ld(dbgi, block, stack, stf, mode_gp, NULL, 0, 0, true);
1137 set_irn_pinned(ld, op_pin_state_floats);
1139 return new_Proj(ld, mode_fp, pn_sparc_Ld_res);
1142 static ir_node *gen_Call(ir_node *node)
1144 ir_graph *irg = get_irn_irg(node);
1145 ir_node *callee = get_Call_ptr(node);
1146 ir_node *block = get_nodes_block(node);
1147 ir_node *new_block = be_transform_node(block);
1148 ir_node *mem = get_Call_mem(node);
1149 ir_node *new_mem = be_transform_node(mem);
1150 dbg_info *dbgi = get_irn_dbg_info(node);
1151 ir_type *type = get_Call_type(node);
1152 int n_params = get_Call_n_params(node);
1153 int n_param_regs = sizeof(param_regs)/sizeof(param_regs[0]);
1154 /* max inputs: memory, callee, register arguments */
1155 int max_inputs = 2 + n_param_regs;
1156 ir_node **in = ALLOCAN(ir_node*, max_inputs);
1157 ir_node **sync_ins = ALLOCAN(ir_node*, max_inputs);
1158 struct obstack *obst = be_get_be_obst(irg);
1159 const arch_register_req_t **in_req
1160 = OALLOCNZ(obst, const arch_register_req_t*, max_inputs);
1161 calling_convention_t *cconv
1162 = sparc_decide_calling_convention(type, true);
1166 = sizeof(caller_saves)/sizeof(caller_saves[0]);
1167 ir_entity *entity = NULL;
1168 ir_node *new_frame = get_stack_pointer_for(node);
1177 assert(n_params == get_method_n_params(type));
1179 /* construct arguments */
1182 in_req[in_arity] = arch_no_register_req;
1186 /* stack pointer input */
1187 /* construct an IncSP -> we have to always be sure that the stack is
1188 * aligned even if we don't push arguments on it */
1189 incsp = be_new_IncSP(sp_reg, new_block, new_frame,
1190 cconv->param_stack_size, 1);
1191 in_req[in_arity] = sp_reg->single_req;
1192 in[in_arity] = incsp;
1196 for (p = 0; p < n_params; ++p) {
1197 ir_node *value = get_Call_param(node, p);
1198 ir_node *new_value = be_transform_node(value);
1199 ir_node *new_value1 = NULL;
1200 const reg_or_stackslot_t *param = &cconv->parameters[p];
1201 ir_type *param_type = get_method_param_type(type, p);
1202 ir_mode *mode = get_type_mode(param_type);
1205 if (mode_is_float(mode) && param->reg0 != NULL) {
1206 unsigned size_bits = get_mode_size_bits(mode);
1207 assert(size_bits == 32);
1208 new_value = bitcast_float_to_int(dbgi, new_block, new_value);
1211 /* put value into registers */
1212 if (param->reg0 != NULL) {
1213 in[in_arity] = new_value;
1214 in_req[in_arity] = param->reg0->single_req;
1216 if (new_value1 == NULL)
1219 if (param->reg1 != NULL) {
1220 assert(new_value1 != NULL);
1221 in[in_arity] = new_value1;
1222 in_req[in_arity] = param->reg1->single_req;
1227 /* we need a store if we're here */
1228 if (new_value1 != NULL) {
1229 new_value = new_value1;
1233 /* create a parameter frame if necessary */
1234 if (mode_is_float(mode)) {
1235 str = new_bd_sparc_Stf(dbgi, new_block, incsp, new_value, new_mem,
1236 mode, NULL, 0, param->offset, true);
1238 str = new_bd_sparc_St(dbgi, new_block, incsp, new_value, new_mem,
1239 mode, NULL, 0, param->offset, true);
1241 sync_ins[sync_arity++] = str;
1243 assert(in_arity <= max_inputs);
1245 /* construct memory input */
1246 if (sync_arity == 0) {
1247 in[mem_pos] = new_mem;
1248 } else if (sync_arity == 1) {
1249 in[mem_pos] = sync_ins[0];
1251 in[mem_pos] = new_rd_Sync(NULL, new_block, sync_arity, sync_ins);
1254 if (is_SymConst(callee)) {
1255 entity = get_SymConst_entity(callee);
1257 in[in_arity] = be_transform_node(callee);
1258 in_req[in_arity] = sparc_reg_classes[CLASS_sparc_gp].class_req;
1266 out_arity = 1 + n_caller_saves;
1268 /* create call node */
1269 if (entity != NULL) {
1270 res = new_bd_sparc_Call_imm(dbgi, new_block, in_arity, in, out_arity,
1273 res = new_bd_sparc_Call_reg(dbgi, new_block, in_arity, in, out_arity);
1275 set_sparc_in_req_all(res, in_req);
1277 /* create output register reqs */
1279 arch_set_out_register_req(res, o++, arch_no_register_req);
1280 for (i = 0; i < n_caller_saves; ++i) {
1281 const arch_register_t *reg = caller_saves[i];
1282 arch_set_out_register_req(res, o++, reg->single_req);
1284 assert(o == out_arity);
1286 /* copy pinned attribute */
1287 set_irn_pinned(res, get_irn_pinned(node));
1289 /* IncSP to destroy the call stackframe */
1290 incsp = be_new_IncSP(sp_reg, new_block, incsp, -cconv->param_stack_size, 0);
1291 /* if we are the last IncSP producer in a block then we have to keep
1293 * Note: This here keeps all producers which is more than necessary */
1294 add_irn_dep(incsp, res);
1297 pmap_insert(node_to_stack, node, incsp);
1299 sparc_free_calling_convention(cconv);
1303 static ir_node *gen_Sel(ir_node *node)
1305 dbg_info *dbgi = get_irn_dbg_info(node);
1306 ir_node *block = get_nodes_block(node);
1307 ir_node *new_block = be_transform_node(block);
1308 ir_node *ptr = get_Sel_ptr(node);
1309 ir_node *new_ptr = be_transform_node(ptr);
1310 ir_entity *entity = get_Sel_entity(node);
1312 /* must be the frame pointer all other sels must have been lowered
1314 assert(is_Proj(ptr) && is_Start(get_Proj_pred(ptr)));
1315 /* we should not have value types from parameters anymore - they should be
1317 assert(get_entity_owner(entity) !=
1318 get_method_value_param_type(get_entity_type(get_irg_entity(get_irn_irg(node)))));
1320 return new_bd_sparc_FrameAddr(dbgi, new_block, new_ptr, entity);
1324 * Transform some Phi nodes
1326 static ir_node *gen_Phi(ir_node *node)
1328 const arch_register_req_t *req;
1329 ir_node *block = be_transform_node(get_nodes_block(node));
1330 ir_graph *irg = current_ir_graph;
1331 dbg_info *dbgi = get_irn_dbg_info(node);
1332 ir_mode *mode = get_irn_mode(node);
1335 if (mode_needs_gp_reg(mode)) {
1336 /* we shouldn't have any 64bit stuff around anymore */
1337 assert(get_mode_size_bits(mode) <= 32);
1338 /* all integer operations are on 32bit registers now */
1340 req = sparc_reg_classes[CLASS_sparc_gp].class_req;
1342 req = arch_no_register_req;
1345 /* phi nodes allow loops, so we use the old arguments for now
1346 * and fix this later */
1347 phi = new_ir_node(dbgi, irg, block, op_Phi, mode, get_irn_arity(node), get_irn_in(node) + 1);
1348 copy_node_attr(irg, node, phi);
1349 be_duplicate_deps(node, phi);
1350 arch_set_out_register_req(phi, 0, req);
1351 be_enqueue_preds(node);
1357 * Transform a Proj from a Load.
1359 static ir_node *gen_Proj_Load(ir_node *node)
1361 ir_node *load = get_Proj_pred(node);
1362 ir_node *new_load = be_transform_node(load);
1363 dbg_info *dbgi = get_irn_dbg_info(node);
1364 long proj = get_Proj_proj(node);
1366 /* renumber the proj */
1367 switch (get_sparc_irn_opcode(new_load)) {
1369 /* handle all gp loads equal: they have the same proj numbers. */
1370 if (proj == pn_Load_res) {
1371 return new_rd_Proj(dbgi, new_load, mode_gp, pn_sparc_Ld_res);
1372 } else if (proj == pn_Load_M) {
1373 return new_rd_Proj(dbgi, new_load, mode_M, pn_sparc_Ld_M);
1377 panic("Unsupported Proj from Load");
1380 return be_duplicate_node(node);
1384 * Transform the Projs from a Cmp.
1386 static ir_node *gen_Proj_Cmp(ir_node *node)
1389 panic("not implemented");
1393 * transform Projs from a Div
1395 static ir_node *gen_Proj_Div(ir_node *node)
1397 ir_node *pred = get_Proj_pred(node);
1398 ir_node *new_pred = be_transform_node(pred);
1399 long proj = get_Proj_proj(node);
1403 if (is_sparc_Div(new_pred)) {
1404 return new_r_Proj(new_pred, mode_gp, pn_sparc_Div_res);
1410 panic("Unsupported Proj from Div");
1413 static ir_node *gen_Proj_Start(ir_node *node)
1415 ir_node *block = get_nodes_block(node);
1416 ir_node *new_block = be_transform_node(block);
1417 ir_node *barrier = be_transform_node(get_Proj_pred(node));
1418 long pn = get_Proj_proj(node);
1420 switch ((pn_Start) pn) {
1421 case pn_Start_X_initial_exec:
1422 /* exchange ProjX with a jump */
1423 return new_bd_sparc_Ba(NULL, new_block);
1425 return new_r_Proj(barrier, mode_M, 0);
1426 case pn_Start_T_args:
1428 case pn_Start_P_frame_base:
1429 return be_prolog_get_reg_value(abihelper, fp_reg);
1430 case pn_Start_P_tls:
1435 panic("Unexpected start proj: %ld\n", pn);
1438 static ir_node *gen_Proj_Proj_Start(ir_node *node)
1440 long pn = get_Proj_proj(node);
1441 ir_node *block = get_nodes_block(node);
1442 ir_node *new_block = be_transform_node(block);
1443 ir_entity *entity = get_irg_entity(current_ir_graph);
1444 ir_type *method_type = get_entity_type(entity);
1445 ir_type *param_type = get_method_param_type(method_type, pn);
1446 const reg_or_stackslot_t *param;
1448 /* Proj->Proj->Start must be a method argument */
1449 assert(get_Proj_proj(get_Proj_pred(node)) == pn_Start_T_args);
1451 param = &cconv->parameters[pn];
1453 if (param->reg0 != NULL) {
1454 /* argument transmitted in register */
1455 ir_mode *mode = get_type_mode(param_type);
1456 const arch_register_t *reg = param->reg0;
1457 ir_node *value = be_prolog_get_reg_value(abihelper, reg);
1459 if (mode_is_float(mode)) {
1460 /* convert integer value to float */
1461 value = bitcast_int_to_float(NULL, new_block, value);
1465 /* argument transmitted on stack */
1466 ir_node *fp = be_prolog_get_reg_value(abihelper, fp_reg);
1467 ir_node *mem = be_prolog_get_memory(abihelper);
1468 ir_mode *mode = get_type_mode(param->type);
1472 if (mode_is_float(mode)) {
1473 load = new_bd_sparc_Ldf(NULL, new_block, fp, mem, mode,
1474 param->entity, 0, 0, true);
1475 value = new_r_Proj(load, mode_fp, pn_sparc_Ldf_res);
1477 load = new_bd_sparc_Ld(NULL, new_block, fp, mem, mode,
1478 param->entity, 0, 0, true);
1479 value = new_r_Proj(load, mode_gp, pn_sparc_Ld_res);
1481 set_irn_pinned(load, op_pin_state_floats);
1487 static ir_node *gen_Proj_Call(ir_node *node)
1489 long pn = get_Proj_proj(node);
1490 ir_node *call = get_Proj_pred(node);
1491 ir_node *new_call = be_transform_node(call);
1493 switch ((pn_Call) pn) {
1495 return new_r_Proj(new_call, mode_M, 0);
1496 case pn_Call_X_regular:
1497 case pn_Call_X_except:
1498 case pn_Call_T_result:
1499 case pn_Call_P_value_res_base:
1503 panic("Unexpected Call proj %ld\n", pn);
1507 * Finds number of output value of a mode_T node which is constrained to
1508 * a single specific register.
1510 static int find_out_for_reg(ir_node *node, const arch_register_t *reg)
1512 int n_outs = arch_irn_get_n_outs(node);
1515 for (o = 0; o < n_outs; ++o) {
1516 const arch_register_req_t *req = arch_get_out_register_req(node, o);
1517 if (req == reg->single_req)
1523 static ir_node *gen_Proj_Proj_Call(ir_node *node)
1525 long pn = get_Proj_proj(node);
1526 ir_node *call = get_Proj_pred(get_Proj_pred(node));
1527 ir_node *new_call = be_transform_node(call);
1528 ir_type *function_type = get_Call_type(call);
1529 calling_convention_t *cconv
1530 = sparc_decide_calling_convention(function_type, true);
1531 const reg_or_stackslot_t *res = &cconv->results[pn];
1532 const arch_register_t *reg = res->reg0;
1536 assert(res->reg0 != NULL && res->reg1 == NULL);
1537 regn = find_out_for_reg(new_call, reg);
1539 panic("Internal error in calling convention for return %+F", node);
1541 mode = res->reg0->reg_class->mode;
1543 sparc_free_calling_convention(cconv);
1545 return new_r_Proj(new_call, mode, regn);
1549 * Transform a Proj node.
1551 static ir_node *gen_Proj(ir_node *node)
1553 ir_node *pred = get_Proj_pred(node);
1554 long pn = get_Proj_proj(node);
1556 switch (get_irn_opcode(pred)) {
1558 if (pn == pn_Store_M) {
1559 return be_transform_node(pred);
1561 panic("Unsupported Proj from Store");
1565 return gen_Proj_Load(node);
1567 return gen_Proj_Call(node);
1569 return gen_Proj_Cmp(node);
1571 return be_duplicate_node(node);
1573 return gen_Proj_Div(node);
1575 return gen_Proj_Start(node);
1577 ir_node *pred_pred = get_Proj_pred(pred);
1578 if (is_Call(pred_pred)) {
1579 return gen_Proj_Proj_Call(node);
1580 } else if (is_Start(pred_pred)) {
1581 return gen_Proj_Proj_Start(node);
1586 panic("code selection didn't expect Proj after %+F\n", pred);
1594 static ir_node *gen_Jmp(ir_node *node)
1596 ir_node *block = get_nodes_block(node);
1597 ir_node *new_block = be_transform_node(block);
1598 dbg_info *dbgi = get_irn_dbg_info(node);
1600 return new_bd_sparc_Ba(dbgi, new_block);
1604 * configure transformation callbacks
1606 void sparc_register_transformers(void)
1608 be_start_transform_setup();
1610 be_set_transform_function(op_Abs, gen_Abs);
1611 be_set_transform_function(op_Add, gen_Add);
1612 be_set_transform_function(op_And, gen_And);
1613 be_set_transform_function(op_be_AddSP, gen_be_AddSP);
1614 be_set_transform_function(op_be_Call, gen_be_Call);
1615 be_set_transform_function(op_be_Copy, gen_be_Copy);
1616 be_set_transform_function(op_be_FrameAddr, gen_be_FrameAddr);
1617 be_set_transform_function(op_be_SubSP, gen_be_SubSP);
1618 be_set_transform_function(op_Call, gen_Call);
1619 be_set_transform_function(op_Cmp, gen_Cmp);
1620 be_set_transform_function(op_Cond, gen_Cond);
1621 be_set_transform_function(op_Const, gen_Const);
1622 be_set_transform_function(op_Conv, gen_Conv);
1623 be_set_transform_function(op_Div, gen_Div);
1624 be_set_transform_function(op_Eor, gen_Eor);
1625 be_set_transform_function(op_Jmp, gen_Jmp);
1626 be_set_transform_function(op_Load, gen_Load);
1627 be_set_transform_function(op_Minus, gen_Minus);
1628 be_set_transform_function(op_Mul, gen_Mul);
1629 be_set_transform_function(op_Mulh, gen_Mulh);
1630 be_set_transform_function(op_Not, gen_Not);
1631 be_set_transform_function(op_Or, gen_Or);
1632 be_set_transform_function(op_Phi, gen_Phi);
1633 be_set_transform_function(op_Proj, gen_Proj);
1634 be_set_transform_function(op_Return, gen_Return);
1635 be_set_transform_function(op_Sel, gen_Sel);
1636 be_set_transform_function(op_Shl, gen_Shl);
1637 be_set_transform_function(op_Shr, gen_Shr);
1638 be_set_transform_function(op_Shrs, gen_Shrs);
1639 be_set_transform_function(op_Start, gen_Start);
1640 be_set_transform_function(op_Store, gen_Store);
1641 be_set_transform_function(op_Sub, gen_Sub);
1642 be_set_transform_function(op_SymConst, gen_SymConst);
1643 be_set_transform_function(op_Unknown, gen_Unknown);
1645 be_set_transform_function(op_sparc_Save, be_duplicate_node);
1648 /* hack to avoid unused fp proj at start barrier */
1649 static void assure_fp_keep(void)
1651 unsigned n_users = 0;
1652 const ir_edge_t *edge;
1653 ir_node *fp_proj = be_prolog_get_reg_value(abihelper, fp_reg);
1655 foreach_out_edge(fp_proj, edge) {
1656 ir_node *succ = get_edge_src_irn(edge);
1657 if (is_End(succ) || is_Anchor(succ))
1663 ir_node *block = get_nodes_block(fp_proj);
1664 ir_node *in[1] = { fp_proj };
1665 be_new_Keep(block, 1, in);
1670 * Transform a Firm graph into a SPARC graph.
1672 void sparc_transform_graph(sparc_code_gen_t *cg)
1674 ir_graph *irg = cg->irg;
1675 ir_entity *entity = get_irg_entity(irg);
1676 ir_type *frame_type;
1678 sparc_register_transformers();
1681 node_to_stack = pmap_create();
1686 abihelper = be_abihelper_prepare(irg);
1687 be_collect_stacknodes(abihelper);
1688 cconv = sparc_decide_calling_convention(get_entity_type(entity), false);
1689 create_stacklayout(irg);
1691 be_transform_graph(cg->irg, NULL);
1694 be_abihelper_finish(abihelper);
1695 sparc_free_calling_convention(cconv);
1697 frame_type = get_irg_frame_type(irg);
1698 if (get_type_state(frame_type) == layout_undefined)
1699 default_layout_compound_type(frame_type);
1701 pmap_destroy(node_to_stack);
1702 node_to_stack = NULL;
1704 be_add_missing_keeps(irg);
1707 void sparc_init_transform(void)
1709 FIRM_DBG_REGISTER(dbg, "firm.be.sparc.transform");