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)
30 #include "irgraph_t.h"
41 #include "../benode.h"
43 #include "../beutil.h"
44 #include "../betranshlp.h"
45 #include "../beabihelper.h"
46 #include "bearch_sparc_t.h"
48 #include "sparc_nodes_attr.h"
49 #include "sparc_transform.h"
50 #include "sparc_new_nodes.h"
51 #include "gen_sparc_new_nodes.h"
53 #include "gen_sparc_regalloc_if.h"
54 #include "sparc_cconv.h"
58 DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
60 static sparc_code_gen_t *env_cg;
61 static beabi_helper_env_t *abihelper;
62 static const arch_register_t *sp_reg = &sparc_gp_regs[REG_SP];
63 static const arch_register_t *fp_reg = &sparc_gp_regs[REG_FRAME_POINTER];
64 static calling_convention_t *cconv = NULL;
65 static ir_mode *mode_gp;
66 static ir_mode *mode_fp;
67 static ir_mode *mode_fp2;
68 //static ir_mode *mode_fp4;
69 static pmap *node_to_stack;
71 static ir_node *gen_SymConst(ir_node *node);
74 static inline int mode_needs_gp_reg(ir_mode *mode)
76 return mode_is_int(mode) || mode_is_reference(mode);
80 * Create an And that will zero out upper bits.
82 * @param dbgi debug info
83 * @param block the basic block
84 * @param op the original node
85 * @param src_bits number of lower bits that will remain
87 static ir_node *gen_zero_extension(dbg_info *dbgi, ir_node *block, ir_node *op,
91 return new_bd_sparc_And_imm(dbgi, block, op, 0xFF);
92 } else if (src_bits == 16) {
93 ir_node *lshift = new_bd_sparc_Sll_imm(dbgi, block, op, 16);
94 ir_node *rshift = new_bd_sparc_Slr_imm(dbgi, block, lshift, 16);
97 panic("zero extension only supported for 8 and 16 bits");
102 * Generate code for a sign extension.
104 * @param dbgi debug info
105 * @param block the basic block
106 * @param op the original node
107 * @param src_bits number of lower bits that will remain
109 static ir_node *gen_sign_extension(dbg_info *dbgi, ir_node *block, ir_node *op,
112 int shift_width = 32 - src_bits;
113 ir_node *lshift_node = new_bd_sparc_Sll_imm(dbgi, block, op, shift_width);
114 ir_node *rshift_node = new_bd_sparc_Sra_imm(dbgi, block, lshift_node, shift_width);
119 * returns true if it is assured, that the upper bits of a node are "clean"
120 * which means for a 16 or 8 bit value, that the upper bits in the register
121 * are 0 for unsigned and a copy of the last significant bit for signed
124 static bool upper_bits_clean(ir_node *transformed_node, ir_mode *mode)
126 (void) transformed_node;
133 * Extend a value to 32 bit signed/unsigned depending on its mode.
135 * @param dbgi debug info
136 * @param block the basic block
137 * @param op the original node
138 * @param orig_mode the original mode of op
140 static ir_node *gen_extension(dbg_info *dbgi, ir_node *block, ir_node *op,
143 int bits = get_mode_size_bits(orig_mode);
147 if (mode_is_signed(orig_mode)) {
148 return gen_sign_extension(dbgi, block, op, bits);
150 return gen_zero_extension(dbgi, block, op, bits);
155 * Creates a possible DAG for a constant.
157 static ir_node *create_const_graph_value(dbg_info *dbgi, ir_node *block,
162 /* we need to load hi & lo separately */
163 if (value < -4096 || value > 4095) {
164 ir_node *hi = new_bd_sparc_HiImm(dbgi, block, (int) value);
165 result = new_bd_sparc_LoImm(dbgi, block, hi, value);
168 result = new_bd_sparc_Mov_imm(dbgi, block, (int) value);
169 be_dep_on_frame(result);
176 * Create a DAG constructing a given Const.
178 * @param irn a Firm const
180 static ir_node *create_const_graph(ir_node *irn, ir_node *block)
182 tarval *tv = get_Const_tarval(irn);
183 ir_mode *mode = get_tarval_mode(tv);
184 dbg_info *dbgi = get_irn_dbg_info(irn);
188 if (mode_is_reference(mode)) {
189 /* SPARC V8 is 32bit, so we can safely convert a reference tarval into Iu */
190 assert(get_mode_size_bits(mode) == get_mode_size_bits(mode_gp));
191 tv = tarval_convert_to(tv, mode_gp);
194 value = get_tarval_long(tv);
195 return create_const_graph_value(dbgi, block, value);
200 MATCH_COMMUTATIVE = 1 << 0, /**< commutative operation. */
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);
206 typedef ir_node* (*new_unop_fp_func) (dbg_info *dbgi, ir_node *block, ir_node *op1, ir_mode *mode);
209 * checks if a node's value can be encoded as a immediate
212 static bool is_imm_encodeable(const ir_node *node)
219 val = get_tarval_long(get_Const_tarval(node));
221 return -4096 <= val && val <= 4095;
225 * helper function for binop operations
227 * @param new_reg register generation function ptr
228 * @param new_imm immediate generation function ptr
230 static ir_node *gen_helper_binop_args(ir_node *node,
231 ir_node *op1, ir_node *op2,
233 new_binop_reg_func new_reg,
234 new_binop_imm_func new_imm)
236 dbg_info *dbgi = get_irn_dbg_info(node);
237 ir_node *block = be_transform_node(get_nodes_block(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)));
245 new_op2 = be_transform_node(op2);
247 if ((flags & MATCH_COMMUTATIVE) && is_imm_encodeable(op1)) {
248 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);
255 static ir_node *gen_helper_binop(ir_node *node, match_flags_t flags,
256 new_binop_reg_func new_reg,
257 new_binop_imm_func new_imm)
259 ir_node *op1 = get_binop_left(node);
260 ir_node *op2 = get_binop_right(node);
261 return gen_helper_binop_args(node, op1, op2, flags, new_reg, new_imm);
265 * helper function for FP binop operations
267 static ir_node *gen_helper_binfpop(ir_node *node, ir_mode *mode,
268 new_binop_fp_func new_func_single,
269 new_binop_fp_func new_func_double,
270 new_binop_fp_func new_func_quad)
272 ir_node *block = be_transform_node(get_nodes_block(node));
273 ir_node *op1 = get_binop_left(node);
274 ir_node *new_op1 = be_transform_node(op1);
275 ir_node *op2 = get_binop_right(node);
276 ir_node *new_op2 = be_transform_node(op2);
277 dbg_info *dbgi = get_irn_dbg_info(node);
278 unsigned bits = get_mode_size_bits(mode);
282 return new_func_single(dbgi, block, new_op1, new_op2, mode);
284 return new_func_double(dbgi, block, new_op1, new_op2, mode);
286 return new_func_quad(dbgi, block, new_op1, new_op2, mode);
290 panic("unsupported mode %+F for float op", mode);
293 static ir_node *gen_helper_unfpop(ir_node *node, ir_mode *mode,
294 new_unop_fp_func new_func_single,
295 new_unop_fp_func new_func_double,
296 new_unop_fp_func new_func_quad)
298 ir_node *block = be_transform_node(get_nodes_block(node));
299 ir_node *op1 = get_binop_left(node);
300 ir_node *new_op1 = be_transform_node(op1);
301 dbg_info *dbgi = get_irn_dbg_info(node);
302 unsigned bits = get_mode_size_bits(mode);
306 return new_func_single(dbgi, block, new_op1, mode);
308 return new_func_double(dbgi, block, new_op1, mode);
310 return new_func_quad(dbgi, block, new_op1, mode);
314 panic("unsupported mode %+F for float op", mode);
318 * Creates an sparc Add.
320 * @param node FIRM node
321 * @return the created sparc Add node
323 static ir_node *gen_Add(ir_node *node)
325 ir_mode *mode = get_irn_mode(node);
326 ir_node *right = get_Add_right(node);
328 if (mode_is_float(mode)) {
329 return gen_helper_binfpop(node, mode, new_bd_sparc_fadd_s,
330 new_bd_sparc_fadd_d, new_bd_sparc_fadd_q);
333 /* special case: + 0x1000 can be represented as - 0x1000 */
334 if (is_Const(right)) {
335 tarval *tv = get_Const_tarval(right);
336 uint32_t val = get_tarval_long(tv);
338 dbg_info *dbgi = get_irn_dbg_info(node);
339 ir_node *block = be_transform_node(get_nodes_block(node));
340 ir_node *op = get_Add_left(node);
341 ir_node *new_op = be_transform_node(op);
342 return new_bd_sparc_Sub_imm(dbgi, block, new_op, -0x1000);
346 return gen_helper_binop(node, MATCH_COMMUTATIVE, new_bd_sparc_Add_reg, new_bd_sparc_Add_imm);
350 * Creates an sparc Sub.
352 * @param node FIRM node
353 * @return the created sparc Sub node
355 static ir_node *gen_Sub(ir_node *node)
357 ir_mode *mode = get_irn_mode(node);
359 if (mode_is_float(mode)) {
360 return gen_helper_binfpop(node, mode, new_bd_sparc_fsub_s,
361 new_bd_sparc_fsub_d, new_bd_sparc_fsub_q);
364 return gen_helper_binop(node, MATCH_NONE, new_bd_sparc_Sub_reg, new_bd_sparc_Sub_imm);
367 static ir_node *create_ldf(dbg_info *dbgi, ir_node *block, ir_node *ptr,
368 ir_node *mem, ir_mode *mode, ir_entity *entity,
369 int entity_sign, long offset, bool is_frame_entity)
371 unsigned bits = get_mode_size_bits(mode);
372 assert(mode_is_float(mode));
374 return new_bd_sparc_Ldf_s(dbgi, block, ptr, mem, mode, entity,
375 entity_sign, offset, is_frame_entity);
376 } else if (bits == 64) {
377 return new_bd_sparc_Ldf_d(dbgi, block, ptr, mem, mode, entity,
378 entity_sign, offset, is_frame_entity);
381 return new_bd_sparc_Ldf_q(dbgi, block, ptr, mem, mode, entity,
382 entity_sign, offset, is_frame_entity);
386 static ir_node *create_stf(dbg_info *dbgi, ir_node *block, ir_node *ptr,
387 ir_node *value, ir_node *mem, ir_mode *mode,
388 ir_entity *entity, int entity_sign, long offset,
389 bool is_frame_entity)
391 unsigned bits = get_mode_size_bits(mode);
392 assert(mode_is_float(mode));
394 return new_bd_sparc_Stf_s(dbgi, block, ptr, value, mem, mode, entity,
395 entity_sign, offset, is_frame_entity);
396 } else if (bits == 64) {
397 return new_bd_sparc_Stf_d(dbgi, block, ptr, value, mem, mode, entity,
398 entity_sign, offset, is_frame_entity);
401 return new_bd_sparc_Stf_q(dbgi, block, ptr, value, mem, mode, entity,
402 entity_sign, offset, is_frame_entity);
409 * @param node the ir Load node
410 * @return the created sparc Load node
412 static ir_node *gen_Load(ir_node *node)
414 ir_mode *mode = get_Load_mode(node);
415 ir_node *block = be_transform_node(get_nodes_block(node));
416 ir_node *ptr = get_Load_ptr(node);
417 ir_node *new_ptr = be_transform_node(ptr);
418 ir_node *mem = get_Load_mem(node);
419 ir_node *new_mem = be_transform_node(mem);
420 dbg_info *dbgi = get_irn_dbg_info(node);
421 ir_node *new_load = NULL;
423 if (mode_is_float(mode)) {
424 new_load = create_ldf(dbgi, block, new_ptr, new_mem, mode, NULL, 0, 0, false);
426 new_load = new_bd_sparc_Ld(dbgi, block, new_ptr, new_mem, mode, NULL, 0, 0, false);
428 set_irn_pinned(new_load, get_irn_pinned(node));
434 * Transforms a Store.
436 * @param node the ir Store node
437 * @return the created sparc Store node
439 static ir_node *gen_Store(ir_node *node)
441 ir_node *block = be_transform_node(get_nodes_block(node));
442 ir_node *ptr = get_Store_ptr(node);
443 ir_node *new_ptr = be_transform_node(ptr);
444 ir_node *mem = get_Store_mem(node);
445 ir_node *new_mem = be_transform_node(mem);
446 ir_node *val = get_Store_value(node);
447 ir_node *new_val = be_transform_node(val);
448 ir_mode *mode = get_irn_mode(val);
449 dbg_info *dbgi = get_irn_dbg_info(node);
450 ir_node *new_store = NULL;
452 if (mode_is_float(mode)) {
453 new_store = create_stf(dbgi, block, new_ptr, new_val, new_mem, mode, NULL, 0, 0, false);
455 new_store = new_bd_sparc_St(dbgi, block, new_ptr, new_val, new_mem, mode, NULL, 0, 0, false);
457 set_irn_pinned(new_store, get_irn_pinned(node));
463 * Creates an sparc Mul.
464 * returns the lower 32bits of the 64bit multiply result
466 * @return the created sparc Mul node
468 static ir_node *gen_Mul(ir_node *node)
470 ir_mode *mode = get_irn_mode(node);
471 if (mode_is_float(mode)) {
472 return gen_helper_binfpop(node, mode, new_bd_sparc_fmul_s,
473 new_bd_sparc_fmul_d, new_bd_sparc_fmul_q);
476 assert(mode_is_data(mode));
477 return gen_helper_binop(node, MATCH_COMMUTATIVE,
478 new_bd_sparc_Mul_reg, new_bd_sparc_Mul_imm);
482 * Creates an sparc Mulh.
483 * Mulh returns the upper 32bits of a mul instruction
485 * @return the created sparc Mulh node
487 static ir_node *gen_Mulh(ir_node *node)
489 ir_mode *mode = get_irn_mode(node);
491 ir_node *proj_res_hi;
493 if (mode_is_float(mode))
494 panic("FP not supported yet");
497 assert(mode_is_data(mode));
498 mul = gen_helper_binop(node, MATCH_COMMUTATIVE, new_bd_sparc_Mulh_reg, new_bd_sparc_Mulh_imm);
499 //arch_irn_add_flags(mul, arch_irn_flags_modify_flags);
500 proj_res_hi = new_r_Proj(mul, mode_gp, pn_sparc_Mulh_low);
505 * Creates an sparc Div.
507 * @return the created sparc Div node
509 static ir_node *gen_Div(ir_node *node)
511 ir_mode *mode = get_Div_resmode(node);
514 assert(!mode_is_float(mode));
515 if (mode_is_signed(mode)) {
516 res = gen_helper_binop(node, 0, new_bd_sparc_SDiv_reg,
517 new_bd_sparc_SDiv_imm);
519 res = gen_helper_binop(node, 0, new_bd_sparc_UDiv_reg,
520 new_bd_sparc_UDiv_imm);
525 static ir_node *gen_Quot(ir_node *node)
527 ir_mode *mode = get_Quot_resmode(node);
528 assert(mode_is_float(mode));
529 return gen_helper_binfpop(node, mode, new_bd_sparc_fdiv_s,
530 new_bd_sparc_fdiv_d, new_bd_sparc_fdiv_q);
533 static ir_node *gen_Abs(ir_node *node)
535 ir_mode *const mode = get_irn_mode(node);
537 if (mode_is_float(mode)) {
538 return gen_helper_unfpop(node, mode, new_bd_sparc_fabs_s,
539 new_bd_sparc_fabs_d, new_bd_sparc_fabs_q);
541 ir_node *const block = be_transform_node(get_nodes_block(node));
542 dbg_info *const dbgi = get_irn_dbg_info(node);
543 ir_node *const op = get_Abs_op(node);
544 ir_node *const new_op = be_transform_node(op);
545 ir_node *const sra = new_bd_sparc_Sra_imm(dbgi, block, new_op, 31);
546 ir_node *const xor = new_bd_sparc_Xor_reg(dbgi, block, new_op, sra);
547 ir_node *const sub = new_bd_sparc_Sub_reg(dbgi, block, xor, sra);
552 static ir_node *get_g0(void)
554 return be_prolog_get_reg_value(abihelper, &sparc_gp_regs[REG_G0]);
558 * Transforms a Not node.
560 * @return the created sparc Not node
562 static ir_node *gen_Not(ir_node *node)
564 ir_node *op = get_Not_op(node);
565 ir_node *zero = get_g0();
566 dbg_info *dbgi = get_irn_dbg_info(node);
567 ir_node *block = be_transform_node(get_nodes_block(node));
568 ir_node *new_op = be_transform_node(op);
570 /* Note: Not(Eor()) is normalize in firm locatopts already so
571 * we don't match it for xnor here */
573 /* Not can be represented with xnor 0, n */
574 return new_bd_sparc_XNor_reg(dbgi, block, zero, new_op);
577 static ir_node *gen_And(ir_node *node)
579 ir_node *left = get_And_left(node);
580 ir_node *right = get_And_right(node);
583 ir_node *not_op = get_Not_op(right);
584 return gen_helper_binop_args(node, left, not_op, MATCH_NONE,
585 new_bd_sparc_AndN_reg,
586 new_bd_sparc_AndN_imm);
589 ir_node *not_op = get_Not_op(left);
590 return gen_helper_binop_args(node, right, not_op, MATCH_NONE,
591 new_bd_sparc_AndN_reg,
592 new_bd_sparc_AndN_imm);
595 return gen_helper_binop(node, MATCH_COMMUTATIVE, new_bd_sparc_And_reg,
596 new_bd_sparc_And_imm);
599 static ir_node *gen_Or(ir_node *node)
601 ir_node *left = get_Or_left(node);
602 ir_node *right = get_Or_right(node);
605 ir_node *not_op = get_Not_op(right);
606 return gen_helper_binop_args(node, left, not_op, MATCH_NONE,
607 new_bd_sparc_OrN_reg,
608 new_bd_sparc_OrN_imm);
611 ir_node *not_op = get_Not_op(left);
612 return gen_helper_binop_args(node, right, not_op, MATCH_NONE,
613 new_bd_sparc_OrN_reg,
614 new_bd_sparc_OrN_imm);
617 return gen_helper_binop(node, MATCH_COMMUTATIVE, new_bd_sparc_Or_reg,
618 new_bd_sparc_Or_imm);
621 static ir_node *gen_Eor(ir_node *node)
623 ir_node *left = get_Eor_left(node);
624 ir_node *right = get_Eor_right(node);
626 /* Note: firm normalizes Not(Eor(a,b)) and Eor(Not(a),b) to Eor(a, Not(b))*/
628 ir_node *not_op = get_Not_op(right);
629 return gen_helper_binop_args(node, left, not_op, MATCH_COMMUTATIVE,
630 new_bd_sparc_XNor_reg,
631 new_bd_sparc_XNor_imm);
634 return gen_helper_binop(node, MATCH_COMMUTATIVE, new_bd_sparc_Xor_reg,
635 new_bd_sparc_Xor_imm);
638 static ir_node *gen_Shl(ir_node *node)
640 return gen_helper_binop(node, MATCH_NONE, new_bd_sparc_Sll_reg, new_bd_sparc_Sll_imm);
643 static ir_node *gen_Shr(ir_node *node)
645 return gen_helper_binop(node, MATCH_NONE, new_bd_sparc_Slr_reg, new_bd_sparc_Slr_imm);
648 static ir_node *gen_Shrs(ir_node *node)
650 return gen_helper_binop(node, MATCH_NONE, new_bd_sparc_Sra_reg, new_bd_sparc_Sra_imm);
654 * Transforms a Minus node.
656 static ir_node *gen_Minus(ir_node *node)
658 ir_mode *mode = get_irn_mode(node);
665 if (mode_is_float(mode)) {
666 return gen_helper_unfpop(node, mode, new_bd_sparc_fneg_s,
667 new_bd_sparc_fneg_d, new_bd_sparc_fneg_q);
669 block = be_transform_node(get_nodes_block(node));
670 dbgi = get_irn_dbg_info(node);
671 op = get_Minus_op(node);
672 new_op = be_transform_node(op);
674 return new_bd_sparc_Sub_reg(dbgi, block, zero, new_op);
677 static ir_node *make_addr(dbg_info *dbgi, ir_entity *entity)
679 ir_node *block = get_irg_start_block(current_ir_graph);
680 ir_node *node = new_bd_sparc_SymConst(dbgi, block, entity);
681 be_dep_on_frame(node);
686 * Create an entity for a given (floating point) tarval
688 static ir_entity *create_float_const_entity(tarval *tv)
690 ir_entity *entity = (ir_entity*) pmap_get(env_cg->constants, tv);
691 ir_initializer_t *initializer;
699 mode = get_tarval_mode(tv);
700 type = get_type_for_mode(mode);
701 glob = get_glob_type();
702 entity = new_entity(glob, id_unique("C%u"), type);
703 set_entity_visibility(entity, ir_visibility_private);
704 add_entity_linkage(entity, IR_LINKAGE_CONSTANT);
706 initializer = create_initializer_tarval(tv);
707 set_entity_initializer(entity, initializer);
709 pmap_insert(env_cg->constants, tv, entity);
714 * Transforms a Const node.
716 * @param node the ir Const node
717 * @return The transformed sparc node.
719 static ir_node *gen_Const(ir_node *node)
721 ir_node *block = be_transform_node(get_nodes_block(node));
722 ir_mode *mode = get_irn_mode(node);
724 if (mode_is_float(mode)) {
725 dbg_info *dbgi = get_irn_dbg_info(node);
726 tarval *tv = get_Const_tarval(node);
727 ir_entity *entity = create_float_const_entity(tv);
728 ir_node *addr = make_addr(dbgi, entity);
729 ir_node *mem = new_NoMem();
731 = create_ldf(dbgi, block, addr, mem, mode, NULL, 0, 0, false);
732 ir_node *proj = new_Proj(new_op, mode, pn_sparc_Ldf_res);
734 set_irn_pinned(new_op, op_pin_state_floats);
738 /* use the 0 register instead of a 0-constant */
739 if (is_Const_null(node)) {
743 return create_const_graph(node, block);
746 static ir_mode *get_cmp_mode(ir_node *b_value)
751 if (!is_Proj(b_value))
752 panic("can't determine cond signednes");
753 pred = get_Proj_pred(b_value);
755 panic("can't determine cond signednes (no cmp)");
756 op = get_Cmp_left(pred);
757 return get_irn_mode(op);
761 * Transform Cond nodes
763 static ir_node *gen_Cond(ir_node *node)
765 ir_node *selector = get_Cond_selector(node);
766 ir_mode *mode = get_irn_mode(selector);
775 if (mode != mode_b) {
776 panic("SwitchJmp not supported yet");
779 // regular if/else jumps
780 assert(is_Proj(selector));
781 assert(is_Cmp(get_Proj_pred(selector)));
783 cmp_mode = get_cmp_mode(selector);
785 block = be_transform_node(get_nodes_block(node));
786 dbgi = get_irn_dbg_info(node);
787 flag_node = be_transform_node(get_Proj_pred(selector));
788 pnc = get_Proj_proj(selector);
789 is_unsigned = !mode_is_signed(cmp_mode);
790 if (mode_is_float(cmp_mode)) {
791 assert(!is_unsigned);
792 return new_bd_sparc_fbfcc(dbgi, block, flag_node, pnc);
794 return new_bd_sparc_Bicc(dbgi, block, flag_node, pnc, is_unsigned);
801 static ir_node *gen_Cmp(ir_node *node)
803 ir_node *block = be_transform_node(get_nodes_block(node));
804 ir_node *op1 = get_Cmp_left(node);
805 ir_node *op2 = get_Cmp_right(node);
806 ir_mode *cmp_mode = get_irn_mode(op1);
807 dbg_info *dbgi = get_irn_dbg_info(node);
808 ir_node *new_op1 = be_transform_node(op1);
809 ir_node *new_op2 = be_transform_node(op2);
810 assert(get_irn_mode(op2) == cmp_mode);
812 if (mode_is_float(cmp_mode)) {
813 unsigned bits = get_mode_size_bits(cmp_mode);
815 return new_bd_sparc_fcmp_s(dbgi, block, new_op1, new_op2, cmp_mode);
816 } else if (bits == 64) {
817 return new_bd_sparc_fcmp_d(dbgi, block, new_op1, new_op2, cmp_mode);
820 return new_bd_sparc_fcmp_q(dbgi, block, new_op1, new_op2, cmp_mode);
824 /* integer compare */
825 new_op1 = gen_extension(dbgi, block, new_op1, cmp_mode);
826 new_op2 = gen_extension(dbgi, block, new_op2, cmp_mode);
827 return new_bd_sparc_Cmp_reg(dbgi, block, new_op1, new_op2);
831 * Transforms a SymConst node.
833 static ir_node *gen_SymConst(ir_node *node)
835 ir_entity *entity = get_SymConst_entity(node);
836 dbg_info *dbgi = get_irn_dbg_info(node);
838 return make_addr(dbgi, entity);
841 static ir_node *create_fftof(dbg_info *dbgi, ir_node *block, ir_node *op,
842 ir_mode *src_mode, ir_mode *dst_mode)
844 unsigned src_bits = get_mode_size_bits(src_mode);
845 unsigned dst_bits = get_mode_size_bits(dst_mode);
846 if (src_bits == 32) {
847 if (dst_bits == 64) {
848 return new_bd_sparc_fftof_s_d(dbgi, block, op, src_mode, dst_mode);
850 assert(dst_bits == 128);
851 return new_bd_sparc_fftof_s_q(dbgi, block, op, src_mode, dst_mode);
853 } else if (src_bits == 64) {
854 if (dst_bits == 32) {
855 return new_bd_sparc_fftof_d_s(dbgi, block, op, src_mode, dst_mode);
857 assert(dst_bits == 128);
858 return new_bd_sparc_fftof_d_q(dbgi, block, op, src_mode, dst_mode);
861 assert(src_bits == 128);
862 if (dst_bits == 32) {
863 return new_bd_sparc_fftof_q_s(dbgi, block, op, src_mode, dst_mode);
865 assert(dst_bits == 64);
866 return new_bd_sparc_fftof_q_d(dbgi, block, op, src_mode, dst_mode);
871 static ir_node *create_ftoi(dbg_info *dbgi, ir_node *block, ir_node *op,
874 unsigned bits = get_mode_size_bits(src_mode);
876 return new_bd_sparc_fftoi_s(dbgi, block, op, src_mode);
877 } else if (bits == 64) {
878 return new_bd_sparc_fftoi_d(dbgi, block, op, src_mode);
881 return new_bd_sparc_fftoi_q(dbgi, block, op, src_mode);
885 static ir_node *create_itof(dbg_info *dbgi, ir_node *block, ir_node *op,
888 unsigned bits = get_mode_size_bits(dst_mode);
890 return new_bd_sparc_fitof_s(dbgi, block, op, dst_mode);
891 } else if (bits == 64) {
892 return new_bd_sparc_fitof_d(dbgi, block, op, dst_mode);
895 return new_bd_sparc_fitof_q(dbgi, block, op, dst_mode);
900 * Transforms a Conv node.
903 static ir_node *gen_Conv(ir_node *node)
905 ir_node *block = be_transform_node(get_nodes_block(node));
906 ir_node *op = get_Conv_op(node);
907 ir_node *new_op = be_transform_node(op);
908 ir_mode *src_mode = get_irn_mode(op);
909 ir_mode *dst_mode = get_irn_mode(node);
910 dbg_info *dbg = get_irn_dbg_info(node);
912 int src_bits = get_mode_size_bits(src_mode);
913 int dst_bits = get_mode_size_bits(dst_mode);
915 if (src_mode == dst_mode)
918 if (mode_is_float(src_mode) || mode_is_float(dst_mode)) {
919 assert((src_bits <= 64 && dst_bits <= 64) && "quad FP not implemented");
921 if (mode_is_float(src_mode)) {
922 if (mode_is_float(dst_mode)) {
923 /* float -> float conv */
924 return create_fftof(dbg, block, new_op, src_mode, dst_mode);
926 /* float -> int conv */
927 if (!mode_is_signed(dst_mode))
928 panic("float to unsigned not implemented yet");
929 return create_ftoi(dbg, block, new_op, src_mode);
932 /* int -> float conv */
933 if (!mode_is_signed(src_mode))
934 panic("unsigned to float not implemented yet");
935 return create_itof(dbg, block, new_op, dst_mode);
937 } else { /* complete in gp registers */
941 if (src_bits == dst_bits) {
942 /* kill unnecessary conv */
946 if (src_bits < dst_bits) {
954 if (upper_bits_clean(new_op, min_mode)) {
958 if (mode_is_signed(min_mode)) {
959 return gen_sign_extension(dbg, block, new_op, min_bits);
961 return gen_zero_extension(dbg, block, new_op, min_bits);
966 static ir_node *gen_Unknown(ir_node *node)
968 ir_node *block = get_nodes_block(node);
969 ir_node *new_block = be_transform_node(block);
970 dbg_info *dbgi = get_irn_dbg_info(node);
972 /* just produce a 0 */
973 ir_mode *mode = get_irn_mode(node);
974 if (mode_is_float(mode)) {
975 panic("FP not implemented");
976 be_dep_on_frame(node);
978 } else if (mode_needs_gp_reg(mode)) {
979 return create_const_graph_value(dbgi, new_block, 0);
982 panic("Unexpected Unknown mode");
986 * Produces the type which sits between the stack args and the locals on the
989 static ir_type *sparc_get_between_type(void)
991 static ir_type *between_type = NULL;
993 if (between_type == NULL) {
994 between_type = new_type_class(new_id_from_str("sparc_between_type"));
995 set_type_size_bytes(between_type, SPARC_MIN_STACKSIZE);
1001 static void create_stacklayout(ir_graph *irg)
1003 ir_entity *entity = get_irg_entity(irg);
1004 ir_type *function_type = get_entity_type(entity);
1005 be_stack_layout_t *layout = be_get_irg_stack_layout(irg);
1010 /* calling conventions must be decided by now */
1011 assert(cconv != NULL);
1013 /* construct argument type */
1014 arg_type = new_type_struct(id_mangle_u(get_entity_ident(entity), new_id_from_chars("arg_type", 8)));
1015 n_params = get_method_n_params(function_type);
1016 for (p = 0; p < n_params; ++p) {
1017 reg_or_stackslot_t *param = &cconv->parameters[p];
1021 if (param->type == NULL)
1024 snprintf(buf, sizeof(buf), "param_%d", p);
1025 id = new_id_from_str(buf);
1026 param->entity = new_entity(arg_type, id, param->type);
1027 set_entity_offset(param->entity, param->offset);
1030 memset(layout, 0, sizeof(*layout));
1032 layout->frame_type = get_irg_frame_type(irg);
1033 layout->between_type = sparc_get_between_type();
1034 layout->arg_type = arg_type;
1035 layout->initial_offset = 0;
1036 layout->initial_bias = 0;
1037 layout->stack_dir = -1;
1038 layout->sp_relative = false;
1040 assert(N_FRAME_TYPES == 3);
1041 layout->order[0] = layout->frame_type;
1042 layout->order[1] = layout->between_type;
1043 layout->order[2] = layout->arg_type;
1047 * transform the start node to the prolog code + initial barrier
1049 static ir_node *gen_Start(ir_node *node)
1051 ir_graph *irg = get_irn_irg(node);
1052 ir_entity *entity = get_irg_entity(irg);
1053 ir_type *function_type = get_entity_type(entity);
1054 ir_node *block = get_nodes_block(node);
1055 ir_node *new_block = be_transform_node(block);
1056 dbg_info *dbgi = get_irn_dbg_info(node);
1065 /* stackpointer is important at function prolog */
1066 be_prolog_add_reg(abihelper, sp_reg,
1067 arch_register_req_type_produces_sp | arch_register_req_type_ignore);
1068 be_prolog_add_reg(abihelper, &sparc_gp_regs[REG_G0],
1069 arch_register_req_type_ignore);
1070 /* function parameters in registers */
1071 for (i = 0; i < get_method_n_params(function_type); ++i) {
1072 const reg_or_stackslot_t *param = &cconv->parameters[i];
1073 if (param->reg0 != NULL)
1074 be_prolog_add_reg(abihelper, param->reg0, 0);
1075 if (param->reg1 != NULL)
1076 be_prolog_add_reg(abihelper, param->reg1, 0);
1079 start = be_prolog_create_start(abihelper, dbgi, new_block);
1081 mem = be_prolog_get_memory(abihelper);
1082 sp = be_prolog_get_reg_value(abihelper, sp_reg);
1083 save = new_bd_sparc_Save(NULL, block, sp, mem, SPARC_MIN_STACKSIZE);
1084 fp = new_r_Proj(save, mode_gp, pn_sparc_Save_frame);
1085 sp = new_r_Proj(save, mode_gp, pn_sparc_Save_stack);
1086 mem = new_r_Proj(save, mode_M, pn_sparc_Save_mem);
1087 arch_set_irn_register(fp, fp_reg);
1088 arch_set_irn_register(sp, sp_reg);
1090 be_prolog_add_reg(abihelper, fp_reg, arch_register_req_type_ignore);
1091 be_prolog_set_reg_value(abihelper, fp_reg, fp);
1093 sp = be_new_IncSP(sp_reg, new_block, sp, BE_STACK_FRAME_SIZE_EXPAND, 0);
1094 be_prolog_set_reg_value(abihelper, sp_reg, sp);
1095 be_prolog_set_memory(abihelper, mem);
1097 barrier = be_prolog_create_barrier(abihelper, new_block);
1102 static ir_node *get_stack_pointer_for(ir_node *node)
1104 /* get predecessor in stack_order list */
1105 ir_node *stack_pred = be_get_stack_pred(abihelper, node);
1106 ir_node *stack_pred_transformed;
1109 if (stack_pred == NULL) {
1110 /* first stack user in the current block. We can simply use the
1111 * initial sp_proj for it */
1112 ir_node *sp_proj = be_prolog_get_reg_value(abihelper, sp_reg);
1116 stack_pred_transformed = be_transform_node(stack_pred);
1117 stack = pmap_get(node_to_stack, stack_pred);
1118 if (stack == NULL) {
1119 return get_stack_pointer_for(stack_pred);
1126 * transform a Return node into epilogue code + return statement
1128 static ir_node *gen_Return(ir_node *node)
1130 ir_node *block = get_nodes_block(node);
1131 ir_node *new_block = be_transform_node(block);
1132 dbg_info *dbgi = get_irn_dbg_info(node);
1133 ir_node *mem = get_Return_mem(node);
1134 ir_node *new_mem = be_transform_node(mem);
1135 ir_node *sp_proj = get_stack_pointer_for(node);
1136 int n_res = get_Return_n_ress(node);
1141 be_epilog_begin(abihelper);
1142 be_epilog_set_memory(abihelper, new_mem);
1143 /* connect stack pointer with initial stack pointer. fix_stack phase
1144 will later serialize all stack pointer adjusting nodes */
1145 be_epilog_add_reg(abihelper, sp_reg,
1146 arch_register_req_type_produces_sp | arch_register_req_type_ignore,
1150 for (i = 0; i < n_res; ++i) {
1151 ir_node *res_value = get_Return_res(node, i);
1152 ir_node *new_res_value = be_transform_node(res_value);
1153 const reg_or_stackslot_t *slot = &cconv->results[i];
1154 const arch_register_t *reg = slot->reg0;
1155 assert(slot->reg1 == NULL);
1156 be_epilog_add_reg(abihelper, reg, 0, new_res_value);
1159 /* create the barrier before the epilog code */
1160 be_epilog_create_barrier(abihelper, new_block);
1162 /* epilog code: an incsp */
1163 sp_proj = be_epilog_get_reg_value(abihelper, sp_reg);
1164 incsp = be_new_IncSP(sp_reg, new_block, sp_proj,
1165 BE_STACK_FRAME_SIZE_SHRINK, 0);
1166 be_epilog_set_reg_value(abihelper, sp_reg, incsp);
1168 bereturn = be_epilog_create_return(abihelper, dbgi, new_block);
1173 static ir_node *bitcast_int_to_float(dbg_info *dbgi, ir_node *block,
1174 ir_node *value0, ir_node *value1)
1176 ir_graph *irg = current_ir_graph;
1177 ir_node *sp = get_irg_frame(irg);
1178 ir_node *nomem = new_NoMem();
1179 ir_node *st = new_bd_sparc_St(dbgi, block, sp, value0, nomem, mode_gp,
1184 set_irn_pinned(st, op_pin_state_floats);
1186 if (value1 != NULL) {
1187 ir_node *st1 = new_bd_sparc_St(dbgi, block, sp, value1, nomem, mode_gp,
1189 ir_node *in[2] = { st, st1 };
1190 ir_node *sync = new_r_Sync(block, 2, in);
1191 set_irn_pinned(st1, op_pin_state_floats);
1199 ldf = create_ldf(dbgi, block, sp, mem, mode, NULL, 0, 0, true);
1200 set_irn_pinned(ldf, op_pin_state_floats);
1202 return new_Proj(ldf, mode, pn_sparc_Ldf_res);
1205 static void bitcast_float_to_int(dbg_info *dbgi, ir_node *block,
1206 ir_node *node, ir_mode *float_mode,
1209 ir_graph *irg = current_ir_graph;
1210 ir_node *stack = get_irg_frame(irg);
1211 ir_node *nomem = new_NoMem();
1212 ir_node *stf = create_stf(dbgi, block, stack, node, nomem, float_mode,
1214 int bits = get_mode_size_bits(float_mode);
1216 set_irn_pinned(stf, op_pin_state_floats);
1218 ld = new_bd_sparc_Ld(dbgi, block, stack, stf, mode_gp, NULL, 0, 0, true);
1219 set_irn_pinned(ld, op_pin_state_floats);
1220 result[0] = new_Proj(ld, mode_gp, pn_sparc_Ld_res);
1223 ir_node *ld2 = new_bd_sparc_Ld(dbgi, block, stack, stf, mode_gp,
1225 set_irn_pinned(ld, op_pin_state_floats);
1226 result[1] = new_Proj(ld2, mode_gp, pn_sparc_Ld_res);
1228 arch_irn_add_flags(ld, sparc_arch_irn_flag_needs_64bit_spillslot);
1229 arch_irn_add_flags(ld2, sparc_arch_irn_flag_needs_64bit_spillslot);
1236 static ir_node *gen_Call(ir_node *node)
1238 ir_graph *irg = get_irn_irg(node);
1239 ir_node *callee = get_Call_ptr(node);
1240 ir_node *block = get_nodes_block(node);
1241 ir_node *new_block = be_transform_node(block);
1242 ir_node *mem = get_Call_mem(node);
1243 ir_node *new_mem = be_transform_node(mem);
1244 dbg_info *dbgi = get_irn_dbg_info(node);
1245 ir_type *type = get_Call_type(node);
1246 int n_params = get_Call_n_params(node);
1247 int n_param_regs = sizeof(param_regs)/sizeof(param_regs[0]);
1248 /* max inputs: memory, callee, register arguments */
1249 int max_inputs = 2 + n_param_regs;
1250 ir_node **in = ALLOCAN(ir_node*, max_inputs);
1251 ir_node **sync_ins = ALLOCAN(ir_node*, max_inputs);
1252 struct obstack *obst = be_get_be_obst(irg);
1253 const arch_register_req_t **in_req
1254 = OALLOCNZ(obst, const arch_register_req_t*, max_inputs);
1255 calling_convention_t *cconv
1256 = sparc_decide_calling_convention(type, true);
1260 = sizeof(caller_saves)/sizeof(caller_saves[0]);
1261 ir_entity *entity = NULL;
1262 ir_node *new_frame = get_stack_pointer_for(node);
1271 assert(n_params == get_method_n_params(type));
1273 /* construct arguments */
1276 in_req[in_arity] = arch_no_register_req;
1280 /* stack pointer input */
1281 /* construct an IncSP -> we have to always be sure that the stack is
1282 * aligned even if we don't push arguments on it */
1283 incsp = be_new_IncSP(sp_reg, new_block, new_frame,
1284 cconv->param_stack_size, 1);
1285 in_req[in_arity] = sp_reg->single_req;
1286 in[in_arity] = incsp;
1290 for (p = 0; p < n_params; ++p) {
1291 ir_node *value = get_Call_param(node, p);
1292 ir_node *new_value = be_transform_node(value);
1293 const reg_or_stackslot_t *param = &cconv->parameters[p];
1294 ir_type *param_type = get_method_param_type(type, p);
1295 ir_mode *mode = get_type_mode(param_type);
1296 ir_node *new_values[2];
1299 if (mode_is_float(mode) && param->reg0 != NULL) {
1300 unsigned size_bits = get_mode_size_bits(mode);
1301 assert(size_bits <= 64);
1302 bitcast_float_to_int(dbgi, new_block, new_value, mode, new_values);
1304 new_values[0] = new_value;
1305 new_values[1] = NULL;
1308 /* put value into registers */
1309 if (param->reg0 != NULL) {
1310 in[in_arity] = new_values[0];
1311 in_req[in_arity] = param->reg0->single_req;
1313 if (new_values[1] == NULL)
1316 if (param->reg1 != NULL) {
1317 assert(new_values[1] != NULL);
1318 in[in_arity] = new_values[1];
1319 in_req[in_arity] = param->reg1->single_req;
1324 /* we need a store if we're here */
1325 if (new_values[1] != NULL) {
1326 new_value = new_values[1];
1330 /* create a parameter frame if necessary */
1331 if (mode_is_float(mode)) {
1332 str = create_stf(dbgi, new_block, incsp, new_value, new_mem,
1333 mode, NULL, 0, param->offset, true);
1335 str = new_bd_sparc_St(dbgi, new_block, incsp, new_value, new_mem,
1336 mode, NULL, 0, param->offset, true);
1338 set_irn_pinned(str, op_pin_state_floats);
1339 sync_ins[sync_arity++] = str;
1341 assert(in_arity <= max_inputs);
1343 /* construct memory input */
1344 if (sync_arity == 0) {
1345 in[mem_pos] = new_mem;
1346 } else if (sync_arity == 1) {
1347 in[mem_pos] = sync_ins[0];
1349 in[mem_pos] = new_rd_Sync(NULL, new_block, sync_arity, sync_ins);
1352 if (is_SymConst(callee)) {
1353 entity = get_SymConst_entity(callee);
1355 in[in_arity] = be_transform_node(callee);
1356 in_req[in_arity] = sparc_reg_classes[CLASS_sparc_gp].class_req;
1364 out_arity = 1 + n_caller_saves;
1366 /* create call node */
1367 if (entity != NULL) {
1368 res = new_bd_sparc_Call_imm(dbgi, new_block, in_arity, in, out_arity,
1371 res = new_bd_sparc_Call_reg(dbgi, new_block, in_arity, in, out_arity);
1373 set_sparc_in_req_all(res, in_req);
1375 /* create output register reqs */
1377 arch_set_out_register_req(res, o++, arch_no_register_req);
1378 for (i = 0; i < n_caller_saves; ++i) {
1379 const arch_register_t *reg = caller_saves[i];
1380 arch_set_out_register_req(res, o++, reg->single_req);
1382 assert(o == out_arity);
1384 /* copy pinned attribute */
1385 set_irn_pinned(res, get_irn_pinned(node));
1387 /* IncSP to destroy the call stackframe */
1388 incsp = be_new_IncSP(sp_reg, new_block, incsp, -cconv->param_stack_size, 0);
1389 /* if we are the last IncSP producer in a block then we have to keep
1391 * Note: This here keeps all producers which is more than necessary */
1392 add_irn_dep(incsp, res);
1395 pmap_insert(node_to_stack, node, incsp);
1397 sparc_free_calling_convention(cconv);
1401 static ir_node *gen_Sel(ir_node *node)
1403 dbg_info *dbgi = get_irn_dbg_info(node);
1404 ir_node *block = get_nodes_block(node);
1405 ir_node *new_block = be_transform_node(block);
1406 ir_node *ptr = get_Sel_ptr(node);
1407 ir_node *new_ptr = be_transform_node(ptr);
1408 ir_entity *entity = get_Sel_entity(node);
1410 /* must be the frame pointer all other sels must have been lowered
1412 assert(is_Proj(ptr) && is_Start(get_Proj_pred(ptr)));
1413 /* we should not have value types from parameters anymore - they should be
1415 assert(get_entity_owner(entity) !=
1416 get_method_value_param_type(get_entity_type(get_irg_entity(get_irn_irg(node)))));
1418 return new_bd_sparc_FrameAddr(dbgi, new_block, new_ptr, entity);
1421 static const arch_register_req_t float1_req = {
1422 arch_register_req_type_normal,
1423 &sparc_reg_classes[CLASS_sparc_fp],
1429 static const arch_register_req_t float2_req = {
1430 arch_register_req_type_normal | arch_register_req_type_aligned,
1431 &sparc_reg_classes[CLASS_sparc_fp],
1437 static const arch_register_req_t float4_req = {
1438 arch_register_req_type_normal | arch_register_req_type_aligned,
1439 &sparc_reg_classes[CLASS_sparc_fp],
1447 static const arch_register_req_t *get_float_req(ir_mode *mode)
1449 unsigned bits = get_mode_size_bits(mode);
1451 assert(mode_is_float(mode));
1454 } else if (bits == 64) {
1457 assert(bits == 128);
1463 * Transform some Phi nodes
1465 static ir_node *gen_Phi(ir_node *node)
1467 const arch_register_req_t *req;
1468 ir_node *block = be_transform_node(get_nodes_block(node));
1469 ir_graph *irg = current_ir_graph;
1470 dbg_info *dbgi = get_irn_dbg_info(node);
1471 ir_mode *mode = get_irn_mode(node);
1474 if (mode_needs_gp_reg(mode)) {
1475 /* we shouldn't have any 64bit stuff around anymore */
1476 assert(get_mode_size_bits(mode) <= 32);
1477 /* all integer operations are on 32bit registers now */
1479 req = sparc_reg_classes[CLASS_sparc_gp].class_req;
1480 } else if (mode_is_float(mode)) {
1482 req = get_float_req(mode);
1484 req = arch_no_register_req;
1487 /* phi nodes allow loops, so we use the old arguments for now
1488 * and fix this later */
1489 phi = new_ir_node(dbgi, irg, block, op_Phi, mode, get_irn_arity(node), get_irn_in(node) + 1);
1490 copy_node_attr(irg, node, phi);
1491 be_duplicate_deps(node, phi);
1492 arch_set_out_register_req(phi, 0, req);
1493 be_enqueue_preds(node);
1498 * Transform a Proj from a Load.
1500 static ir_node *gen_Proj_Load(ir_node *node)
1502 ir_node *load = get_Proj_pred(node);
1503 ir_node *new_load = be_transform_node(load);
1504 dbg_info *dbgi = get_irn_dbg_info(node);
1505 long pn = get_Proj_proj(node);
1507 /* renumber the proj */
1508 switch (get_sparc_irn_opcode(new_load)) {
1510 /* handle all gp loads equal: they have the same proj numbers. */
1511 if (pn == pn_Load_res) {
1512 return new_rd_Proj(dbgi, new_load, mode_gp, pn_sparc_Ld_res);
1513 } else if (pn == pn_Load_M) {
1514 return new_rd_Proj(dbgi, new_load, mode_M, pn_sparc_Ld_M);
1518 if (pn == pn_Load_res) {
1519 return new_rd_Proj(dbgi, new_load, mode_fp, pn_sparc_Ldf_res);
1520 } else if (pn == pn_Load_M) {
1521 return new_rd_Proj(dbgi, new_load, mode_M, pn_sparc_Ld_M);
1527 panic("Unsupported Proj from Load");
1530 static ir_node *gen_Proj_Store(ir_node *node)
1532 ir_node *store = get_Proj_pred(node);
1533 ir_node *new_store = be_transform_node(store);
1534 long pn = get_Proj_proj(node);
1536 /* renumber the proj */
1537 switch (get_sparc_irn_opcode(new_store)) {
1539 if (pn == pn_Store_M) {
1544 if (pn == pn_Store_M) {
1551 panic("Unsupported Proj from Store");
1555 * Transform the Projs from a Cmp.
1557 static ir_node *gen_Proj_Cmp(ir_node *node)
1560 panic("not implemented");
1564 * transform Projs from a Div
1566 static ir_node *gen_Proj_Div(ir_node *node)
1568 ir_node *pred = get_Proj_pred(node);
1569 ir_node *new_pred = be_transform_node(pred);
1570 long pn = get_Proj_proj(node);
1572 assert(is_sparc_SDiv(new_pred) || is_sparc_UDiv(new_pred));
1573 assert(pn_sparc_SDiv_res == pn_sparc_UDiv_res);
1574 assert(pn_sparc_SDiv_M == pn_sparc_UDiv_M);
1577 return new_r_Proj(new_pred, mode_gp, pn_sparc_SDiv_res);
1579 return new_r_Proj(new_pred, mode_gp, pn_sparc_SDiv_M);
1583 panic("Unsupported Proj from Div");
1586 static ir_node *gen_Proj_Quot(ir_node *node)
1588 ir_node *pred = get_Proj_pred(node);
1589 ir_node *new_pred = be_transform_node(pred);
1590 long pn = get_Proj_proj(node);
1592 assert(is_sparc_fdiv(new_pred));
1595 return new_r_Proj(new_pred, mode_gp, pn_sparc_fdiv_res);
1597 return new_r_Proj(new_pred, mode_gp, pn_sparc_fdiv_M);
1601 panic("Unsupported Proj from Quot");
1604 static ir_node *gen_Proj_Start(ir_node *node)
1606 ir_node *block = get_nodes_block(node);
1607 ir_node *new_block = be_transform_node(block);
1608 ir_node *barrier = be_transform_node(get_Proj_pred(node));
1609 long pn = get_Proj_proj(node);
1611 switch ((pn_Start) pn) {
1612 case pn_Start_X_initial_exec:
1613 /* exchange ProjX with a jump */
1614 return new_bd_sparc_Ba(NULL, new_block);
1616 return new_r_Proj(barrier, mode_M, 0);
1617 case pn_Start_T_args:
1619 case pn_Start_P_frame_base:
1620 return be_prolog_get_reg_value(abihelper, fp_reg);
1621 case pn_Start_P_tls:
1626 panic("Unexpected start proj: %ld\n", pn);
1629 static ir_node *gen_Proj_Proj_Start(ir_node *node)
1631 long pn = get_Proj_proj(node);
1632 ir_node *block = get_nodes_block(node);
1633 ir_node *new_block = be_transform_node(block);
1634 ir_entity *entity = get_irg_entity(current_ir_graph);
1635 ir_type *method_type = get_entity_type(entity);
1636 ir_type *param_type = get_method_param_type(method_type, pn);
1637 const reg_or_stackslot_t *param;
1639 /* Proj->Proj->Start must be a method argument */
1640 assert(get_Proj_proj(get_Proj_pred(node)) == pn_Start_T_args);
1642 param = &cconv->parameters[pn];
1644 if (param->reg0 != NULL) {
1645 /* argument transmitted in register */
1646 ir_mode *mode = get_type_mode(param_type);
1647 const arch_register_t *reg = param->reg0;
1648 ir_node *value = be_prolog_get_reg_value(abihelper, reg);
1650 if (mode_is_float(mode)) {
1651 ir_node *value1 = NULL;
1653 if (param->reg1 != NULL) {
1654 value1 = be_prolog_get_reg_value(abihelper, param->reg1);
1655 } else if (param->entity != NULL) {
1656 ir_node *fp = be_prolog_get_reg_value(abihelper, fp_reg);
1657 ir_node *mem = be_prolog_get_memory(abihelper);
1658 ir_node *ld = new_bd_sparc_Ld(NULL, new_block, fp, mem,
1659 mode_gp, param->entity,
1661 value1 = new_Proj(ld, mode_gp, pn_sparc_Ld_res);
1664 /* convert integer value to float */
1665 value = bitcast_int_to_float(NULL, new_block, value, value1);
1669 /* argument transmitted on stack */
1670 ir_node *fp = be_prolog_get_reg_value(abihelper, fp_reg);
1671 ir_node *mem = be_prolog_get_memory(abihelper);
1672 ir_mode *mode = get_type_mode(param->type);
1676 if (mode_is_float(mode)) {
1677 load = create_ldf(NULL, new_block, fp, mem, mode,
1678 param->entity, 0, 0, true);
1679 value = new_r_Proj(load, mode_fp, pn_sparc_Ldf_res);
1681 load = new_bd_sparc_Ld(NULL, new_block, fp, mem, mode,
1682 param->entity, 0, 0, true);
1683 value = new_r_Proj(load, mode_gp, pn_sparc_Ld_res);
1685 set_irn_pinned(load, op_pin_state_floats);
1691 static ir_node *gen_Proj_Call(ir_node *node)
1693 long pn = get_Proj_proj(node);
1694 ir_node *call = get_Proj_pred(node);
1695 ir_node *new_call = be_transform_node(call);
1697 switch ((pn_Call) pn) {
1699 return new_r_Proj(new_call, mode_M, 0);
1700 case pn_Call_X_regular:
1701 case pn_Call_X_except:
1702 case pn_Call_T_result:
1703 case pn_Call_P_value_res_base:
1707 panic("Unexpected Call proj %ld\n", pn);
1711 * Finds number of output value of a mode_T node which is constrained to
1712 * a single specific register.
1714 static int find_out_for_reg(ir_node *node, const arch_register_t *reg)
1716 int n_outs = arch_irn_get_n_outs(node);
1719 for (o = 0; o < n_outs; ++o) {
1720 const arch_register_req_t *req = arch_get_out_register_req(node, o);
1721 if (req == reg->single_req)
1727 static ir_node *gen_Proj_Proj_Call(ir_node *node)
1729 long pn = get_Proj_proj(node);
1730 ir_node *call = get_Proj_pred(get_Proj_pred(node));
1731 ir_node *new_call = be_transform_node(call);
1732 ir_type *function_type = get_Call_type(call);
1733 calling_convention_t *cconv
1734 = sparc_decide_calling_convention(function_type, true);
1735 const reg_or_stackslot_t *res = &cconv->results[pn];
1736 const arch_register_t *reg = res->reg0;
1740 assert(res->reg0 != NULL && res->reg1 == NULL);
1741 regn = find_out_for_reg(new_call, reg);
1743 panic("Internal error in calling convention for return %+F", node);
1745 mode = res->reg0->reg_class->mode;
1747 sparc_free_calling_convention(cconv);
1749 return new_r_Proj(new_call, mode, regn);
1753 * Transform a Proj node.
1755 static ir_node *gen_Proj(ir_node *node)
1757 ir_node *pred = get_Proj_pred(node);
1759 switch (get_irn_opcode(pred)) {
1761 return gen_Proj_Store(node);
1763 return gen_Proj_Load(node);
1765 return gen_Proj_Call(node);
1767 return gen_Proj_Cmp(node);
1769 return be_duplicate_node(node);
1771 return gen_Proj_Div(node);
1773 return gen_Proj_Quot(node);
1775 return gen_Proj_Start(node);
1777 ir_node *pred_pred = get_Proj_pred(pred);
1778 if (is_Call(pred_pred)) {
1779 return gen_Proj_Proj_Call(node);
1780 } else if (is_Start(pred_pred)) {
1781 return gen_Proj_Proj_Start(node);
1786 panic("code selection didn't expect Proj after %+F\n", pred);
1793 static ir_node *gen_Jmp(ir_node *node)
1795 ir_node *block = get_nodes_block(node);
1796 ir_node *new_block = be_transform_node(block);
1797 dbg_info *dbgi = get_irn_dbg_info(node);
1799 return new_bd_sparc_Ba(dbgi, new_block);
1803 * configure transformation callbacks
1805 void sparc_register_transformers(void)
1807 be_start_transform_setup();
1809 be_set_transform_function(op_Abs, gen_Abs);
1810 be_set_transform_function(op_Add, gen_Add);
1811 be_set_transform_function(op_And, gen_And);
1812 be_set_transform_function(op_Call, gen_Call);
1813 be_set_transform_function(op_Cmp, gen_Cmp);
1814 be_set_transform_function(op_Cond, gen_Cond);
1815 be_set_transform_function(op_Const, gen_Const);
1816 be_set_transform_function(op_Conv, gen_Conv);
1817 be_set_transform_function(op_Div, gen_Div);
1818 be_set_transform_function(op_Eor, gen_Eor);
1819 be_set_transform_function(op_Jmp, gen_Jmp);
1820 be_set_transform_function(op_Load, gen_Load);
1821 be_set_transform_function(op_Minus, gen_Minus);
1822 be_set_transform_function(op_Mul, gen_Mul);
1823 be_set_transform_function(op_Mulh, gen_Mulh);
1824 be_set_transform_function(op_Not, gen_Not);
1825 be_set_transform_function(op_Or, gen_Or);
1826 be_set_transform_function(op_Phi, gen_Phi);
1827 be_set_transform_function(op_Proj, gen_Proj);
1828 be_set_transform_function(op_Quot, gen_Quot);
1829 be_set_transform_function(op_Return, gen_Return);
1830 be_set_transform_function(op_Sel, gen_Sel);
1831 be_set_transform_function(op_Shl, gen_Shl);
1832 be_set_transform_function(op_Shr, gen_Shr);
1833 be_set_transform_function(op_Shrs, gen_Shrs);
1834 be_set_transform_function(op_Start, gen_Start);
1835 be_set_transform_function(op_Store, gen_Store);
1836 be_set_transform_function(op_Sub, gen_Sub);
1837 be_set_transform_function(op_SymConst, gen_SymConst);
1838 be_set_transform_function(op_Unknown, gen_Unknown);
1840 be_set_transform_function(op_sparc_Save, be_duplicate_node);
1843 /* hack to avoid unused fp proj at start barrier */
1844 static void assure_fp_keep(void)
1846 unsigned n_users = 0;
1847 const ir_edge_t *edge;
1848 ir_node *fp_proj = be_prolog_get_reg_value(abihelper, fp_reg);
1850 foreach_out_edge(fp_proj, edge) {
1851 ir_node *succ = get_edge_src_irn(edge);
1852 if (is_End(succ) || is_Anchor(succ))
1858 ir_node *block = get_nodes_block(fp_proj);
1859 ir_node *in[1] = { fp_proj };
1860 be_new_Keep(block, 1, in);
1865 * Transform a Firm graph into a SPARC graph.
1867 void sparc_transform_graph(sparc_code_gen_t *cg)
1869 ir_graph *irg = cg->irg;
1870 ir_entity *entity = get_irg_entity(irg);
1871 ir_type *frame_type;
1873 sparc_register_transformers();
1876 node_to_stack = pmap_create();
1883 abihelper = be_abihelper_prepare(irg);
1884 be_collect_stacknodes(abihelper);
1885 cconv = sparc_decide_calling_convention(get_entity_type(entity), false);
1886 create_stacklayout(irg);
1888 be_transform_graph(cg->irg, NULL);
1891 be_abihelper_finish(abihelper);
1892 sparc_free_calling_convention(cconv);
1894 frame_type = get_irg_frame_type(irg);
1895 if (get_type_state(frame_type) == layout_undefined)
1896 default_layout_compound_type(frame_type);
1898 pmap_destroy(node_to_stack);
1899 node_to_stack = NULL;
1901 be_add_missing_keeps(irg);
1904 void sparc_init_transform(void)
1906 FIRM_DBG_REGISTER(dbg, "firm.be.sparc.transform");