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"
36 #include "iroptimize.h"
42 #include "../benode.h"
44 #include "../beutil.h"
45 #include "../betranshlp.h"
46 #include "../beabihelper.h"
47 #include "bearch_sparc_t.h"
49 #include "sparc_nodes_attr.h"
50 #include "sparc_transform.h"
51 #include "sparc_new_nodes.h"
52 #include "gen_sparc_new_nodes.h"
54 #include "gen_sparc_regalloc_if.h"
55 #include "sparc_cconv.h"
59 DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
61 static sparc_code_gen_t *env_cg;
62 static beabi_helper_env_t *abihelper;
63 static const arch_register_t *sp_reg = &sparc_gp_regs[REG_SP];
64 static const arch_register_t *fp_reg = &sparc_gp_regs[REG_FRAME_POINTER];
65 static calling_convention_t *cconv = NULL;
66 static ir_mode *mode_gp;
67 static ir_mode *mode_fp;
68 static ir_mode *mode_fp2;
69 //static ir_mode *mode_fp4;
70 static pmap *node_to_stack;
72 static inline int mode_needs_gp_reg(ir_mode *mode)
74 return mode_is_int(mode) || mode_is_reference(mode);
78 * Create an And that will zero out upper bits.
80 * @param dbgi debug info
81 * @param block the basic block
82 * @param op the original node
83 * @param src_bits number of lower bits that will remain
85 static ir_node *gen_zero_extension(dbg_info *dbgi, ir_node *block, ir_node *op,
89 return new_bd_sparc_And_imm(dbgi, block, op, NULL, 0xFF);
90 } else if (src_bits == 16) {
91 ir_node *lshift = new_bd_sparc_Sll_imm(dbgi, block, op, NULL, 16);
92 ir_node *rshift = new_bd_sparc_Slr_imm(dbgi, block, lshift, NULL, 16);
95 panic("zero extension only supported for 8 and 16 bits");
100 * Generate code for a sign extension.
102 * @param dbgi debug info
103 * @param block the basic block
104 * @param op the original node
105 * @param src_bits number of lower bits that will remain
107 static ir_node *gen_sign_extension(dbg_info *dbgi, ir_node *block, ir_node *op,
110 int shift_width = 32 - src_bits;
111 ir_node *lshift_node = new_bd_sparc_Sll_imm(dbgi, block, op, NULL, shift_width);
112 ir_node *rshift_node = new_bd_sparc_Sra_imm(dbgi, block, lshift_node, NULL, shift_width);
117 * returns true if it is assured, that the upper bits of a node are "clean"
118 * which means for a 16 or 8 bit value, that the upper bits in the register
119 * are 0 for unsigned and a copy of the last significant bit for signed
122 static bool upper_bits_clean(ir_node *transformed_node, ir_mode *mode)
124 (void) transformed_node;
131 * Extend a value to 32 bit signed/unsigned depending on its mode.
133 * @param dbgi debug info
134 * @param block the basic block
135 * @param op the original node
136 * @param orig_mode the original mode of op
138 static ir_node *gen_extension(dbg_info *dbgi, ir_node *block, ir_node *op,
141 int bits = get_mode_size_bits(orig_mode);
145 if (mode_is_signed(orig_mode)) {
146 return gen_sign_extension(dbgi, block, op, bits);
148 return gen_zero_extension(dbgi, block, op, bits);
154 MATCH_COMMUTATIVE = 1 << 0, /**< commutative operation. */
157 typedef ir_node* (*new_binop_reg_func) (dbg_info *dbgi, ir_node *block, ir_node *op1, ir_node *op2);
158 typedef ir_node* (*new_binop_fp_func) (dbg_info *dbgi, ir_node *block, ir_node *op1, ir_node *op2, ir_mode *mode);
159 typedef ir_node* (*new_binop_imm_func) (dbg_info *dbgi, ir_node *block, ir_node *op1, ir_entity *entity, int32_t immediate);
160 typedef ir_node* (*new_unop_fp_func) (dbg_info *dbgi, ir_node *block, ir_node *op1, ir_mode *mode);
162 static bool is_value_imm_encodeable(int32_t value)
164 return -4096 <= value && value <= 4095;
168 * checks if a node's value can be encoded as a immediate
170 static bool is_imm_encodeable(const ir_node *node)
176 value = get_tarval_long(get_Const_tarval(node));
177 return is_value_imm_encodeable(value);
181 * helper function for binop operations
183 * @param new_reg register generation function ptr
184 * @param new_imm immediate generation function ptr
186 static ir_node *gen_helper_binop_args(ir_node *node,
187 ir_node *op1, ir_node *op2,
189 new_binop_reg_func new_reg,
190 new_binop_imm_func new_imm)
192 dbg_info *dbgi = get_irn_dbg_info(node);
193 ir_node *block = be_transform_node(get_nodes_block(node));
197 if (is_imm_encodeable(op2)) {
198 ir_node *new_op1 = be_transform_node(op1);
199 int32_t immediate = get_tarval_long(get_Const_tarval(op2));
200 return new_imm(dbgi, block, new_op1, NULL, immediate);
202 new_op2 = be_transform_node(op2);
204 if ((flags & MATCH_COMMUTATIVE) && is_imm_encodeable(op1)) {
205 int32_t immediate = get_tarval_long(get_Const_tarval(op1));
206 return new_imm(dbgi, block, new_op2, NULL, immediate);
208 new_op1 = be_transform_node(op1);
210 return new_reg(dbgi, block, new_op1, new_op2);
213 static ir_node *gen_helper_binop(ir_node *node, match_flags_t flags,
214 new_binop_reg_func new_reg,
215 new_binop_imm_func new_imm)
217 ir_node *op1 = get_binop_left(node);
218 ir_node *op2 = get_binop_right(node);
219 return gen_helper_binop_args(node, op1, op2, flags, new_reg, new_imm);
223 * helper function for FP binop operations
225 static ir_node *gen_helper_binfpop(ir_node *node, ir_mode *mode,
226 new_binop_fp_func new_func_single,
227 new_binop_fp_func new_func_double,
228 new_binop_fp_func new_func_quad)
230 ir_node *block = be_transform_node(get_nodes_block(node));
231 ir_node *op1 = get_binop_left(node);
232 ir_node *new_op1 = be_transform_node(op1);
233 ir_node *op2 = get_binop_right(node);
234 ir_node *new_op2 = be_transform_node(op2);
235 dbg_info *dbgi = get_irn_dbg_info(node);
236 unsigned bits = get_mode_size_bits(mode);
240 return new_func_single(dbgi, block, new_op1, new_op2, mode);
242 return new_func_double(dbgi, block, new_op1, new_op2, mode);
244 return new_func_quad(dbgi, block, new_op1, new_op2, mode);
248 panic("unsupported mode %+F for float op", mode);
251 static ir_node *gen_helper_unfpop(ir_node *node, ir_mode *mode,
252 new_unop_fp_func new_func_single,
253 new_unop_fp_func new_func_double,
254 new_unop_fp_func new_func_quad)
256 ir_node *block = be_transform_node(get_nodes_block(node));
257 ir_node *op1 = get_binop_left(node);
258 ir_node *new_op1 = be_transform_node(op1);
259 dbg_info *dbgi = get_irn_dbg_info(node);
260 unsigned bits = get_mode_size_bits(mode);
264 return new_func_single(dbgi, block, new_op1, mode);
266 return new_func_double(dbgi, block, new_op1, mode);
268 return new_func_quad(dbgi, block, new_op1, mode);
272 panic("unsupported mode %+F for float op", mode);
275 static ir_node *get_g0(void)
277 return be_prolog_get_reg_value(abihelper, &sparc_gp_regs[REG_G0]);
280 typedef struct address_t {
286 static void match_address(ir_node *ptr, address_t *address)
290 ir_entity *entity = NULL;
293 ir_node *add_right = get_Add_right(base);
294 if (is_Const(add_right)) {
295 base = get_Add_left(base);
296 offset += get_tarval_long(get_Const_tarval(add_right));
299 /* Note that we don't match sub(x, Const) or chains of adds/subs
300 * because this should all be normalized by now */
302 /* we only use the symconst if we're the only user otherwise we probably
303 * won't save anything but produce multiple sethi+or combinations with
304 * just different offsets */
305 if (is_SymConst(base) && get_irn_n_edges(base) == 1) {
306 dbg_info *dbgi = get_irn_dbg_info(ptr);
307 ir_node *block = get_nodes_block(ptr);
308 ir_node *new_block = be_transform_node(block);
309 entity = get_SymConst_entity(base);
310 base = new_bd_sparc_SetHi(dbgi, new_block, entity, offset);
312 if (is_value_imm_encodeable(offset)) {
313 base = be_transform_node(base);
315 base = be_transform_node(ptr);
320 address->base = base;
321 address->entity = entity;
322 address->offset = offset;
326 * Creates an sparc Add.
328 * @param node FIRM node
329 * @return the created sparc Add node
331 static ir_node *gen_Add(ir_node *node)
333 ir_mode *mode = get_irn_mode(node);
336 if (mode_is_float(mode)) {
337 return gen_helper_binfpop(node, mode, new_bd_sparc_fadd_s,
338 new_bd_sparc_fadd_d, new_bd_sparc_fadd_q);
341 /* special case: + 0x1000 can be represented as - 0x1000 */
342 right = get_Add_right(node);
343 if (is_Const(right)) {
346 ir_node *left = get_Add_left(node);
347 /* is this simple address arithmetic? then we can let the linker do
348 * the calculation. */
349 if (is_SymConst(left)) {
350 dbg_info *dbgi = get_irn_dbg_info(node);
351 ir_node *block = be_transform_node(get_nodes_block(node));
354 match_address(node, &address);
355 assert(is_sparc_SetHi(address.base));
356 return new_bd_sparc_Or_imm(dbgi, block, address.base,
357 address.entity, address.offset);
360 tv = get_Const_tarval(right);
361 val = get_tarval_long(tv);
363 dbg_info *dbgi = get_irn_dbg_info(node);
364 ir_node *block = be_transform_node(get_nodes_block(node));
365 ir_node *op = get_Add_left(node);
366 ir_node *new_op = be_transform_node(op);
367 return new_bd_sparc_Sub_imm(dbgi, block, new_op, NULL, -0x1000);
371 return gen_helper_binop(node, MATCH_COMMUTATIVE, new_bd_sparc_Add_reg,
372 new_bd_sparc_Add_imm);
376 * Creates an sparc Sub.
378 * @param node FIRM node
379 * @return the created sparc Sub node
381 static ir_node *gen_Sub(ir_node *node)
383 ir_mode *mode = get_irn_mode(node);
385 if (mode_is_float(mode)) {
386 return gen_helper_binfpop(node, mode, new_bd_sparc_fsub_s,
387 new_bd_sparc_fsub_d, new_bd_sparc_fsub_q);
390 return gen_helper_binop(node, MATCH_NONE, new_bd_sparc_Sub_reg, new_bd_sparc_Sub_imm);
393 static ir_node *create_ldf(dbg_info *dbgi, ir_node *block, ir_node *ptr,
394 ir_node *mem, ir_mode *mode, ir_entity *entity,
395 long offset, bool is_frame_entity)
397 unsigned bits = get_mode_size_bits(mode);
398 assert(mode_is_float(mode));
400 return new_bd_sparc_Ldf_s(dbgi, block, ptr, mem, mode, entity,
401 offset, is_frame_entity);
402 } else if (bits == 64) {
403 return new_bd_sparc_Ldf_d(dbgi, block, ptr, mem, mode, entity,
404 offset, is_frame_entity);
407 return new_bd_sparc_Ldf_q(dbgi, block, ptr, mem, mode, entity,
408 offset, is_frame_entity);
412 static ir_node *create_stf(dbg_info *dbgi, ir_node *block, ir_node *ptr,
413 ir_node *value, ir_node *mem, ir_mode *mode,
414 ir_entity *entity, long offset,
415 bool is_frame_entity)
417 unsigned bits = get_mode_size_bits(mode);
418 assert(mode_is_float(mode));
420 return new_bd_sparc_Stf_s(dbgi, block, ptr, value, mem, mode, entity,
421 offset, is_frame_entity);
422 } else if (bits == 64) {
423 return new_bd_sparc_Stf_d(dbgi, block, ptr, value, mem, mode, entity,
424 offset, is_frame_entity);
427 return new_bd_sparc_Stf_q(dbgi, block, ptr, value, mem, mode, entity,
428 offset, is_frame_entity);
435 * @param node the ir Load node
436 * @return the created sparc Load node
438 static ir_node *gen_Load(ir_node *node)
440 dbg_info *dbgi = get_irn_dbg_info(node);
441 ir_mode *mode = get_Load_mode(node);
442 ir_node *block = be_transform_node(get_nodes_block(node));
443 ir_node *ptr = get_Load_ptr(node);
444 ir_node *mem = get_Load_mem(node);
445 ir_node *new_mem = be_transform_node(mem);
446 ir_node *new_load = NULL;
449 match_address(ptr, &address);
451 if (mode_is_float(mode)) {
452 new_load = create_ldf(dbgi, block, address.base, new_mem, mode,
453 address.entity, address.offset, false);
455 new_load = new_bd_sparc_Ld(dbgi, block, address.base, new_mem, mode,
456 address.entity, address.offset, false);
458 set_irn_pinned(new_load, get_irn_pinned(node));
464 * Transforms a Store.
466 * @param node the ir Store node
467 * @return the created sparc Store node
469 static ir_node *gen_Store(ir_node *node)
471 ir_node *block = be_transform_node(get_nodes_block(node));
472 ir_node *ptr = get_Store_ptr(node);
473 ir_node *mem = get_Store_mem(node);
474 ir_node *new_mem = be_transform_node(mem);
475 ir_node *val = get_Store_value(node);
476 ir_node *new_val = be_transform_node(val);
477 ir_mode *mode = get_irn_mode(val);
478 dbg_info *dbgi = get_irn_dbg_info(node);
479 ir_node *new_store = NULL;
482 match_address(ptr, &address);
484 if (mode_is_float(mode)) {
485 new_store = create_stf(dbgi, block, address.base, new_val, new_mem,
486 mode, address.entity, address.offset, false);
488 new_store = new_bd_sparc_St(dbgi, block, address.base, new_val, new_mem,
489 mode, address.entity, address.offset,
492 set_irn_pinned(new_store, get_irn_pinned(node));
498 * Creates an sparc Mul.
499 * returns the lower 32bits of the 64bit multiply result
501 * @return the created sparc Mul node
503 static ir_node *gen_Mul(ir_node *node)
505 ir_mode *mode = get_irn_mode(node);
506 if (mode_is_float(mode)) {
507 return gen_helper_binfpop(node, mode, new_bd_sparc_fmul_s,
508 new_bd_sparc_fmul_d, new_bd_sparc_fmul_q);
511 assert(mode_is_data(mode));
512 return gen_helper_binop(node, MATCH_COMMUTATIVE,
513 new_bd_sparc_Mul_reg, new_bd_sparc_Mul_imm);
517 * Creates an sparc Mulh.
518 * Mulh returns the upper 32bits of a mul instruction
520 * @return the created sparc Mulh node
522 static ir_node *gen_Mulh(ir_node *node)
524 ir_mode *mode = get_irn_mode(node);
526 ir_node *proj_res_hi;
528 if (mode_is_float(mode))
529 panic("FP not supported yet");
532 assert(mode_is_data(mode));
533 mul = gen_helper_binop(node, MATCH_COMMUTATIVE, new_bd_sparc_Mulh_reg, new_bd_sparc_Mulh_imm);
534 //arch_irn_add_flags(mul, arch_irn_flags_modify_flags);
535 proj_res_hi = new_r_Proj(mul, mode_gp, pn_sparc_Mulh_low);
539 static ir_node *gen_sign_extension_value(ir_node *node)
541 ir_node *block = get_nodes_block(node);
542 ir_node *new_block = be_transform_node(block);
543 ir_node *new_node = be_transform_node(node);
544 /* TODO: we could do some shortcuts for some value types probably.
545 * (For constants or other cases where we know the sign bit in
547 return new_bd_sparc_Sra_imm(NULL, new_block, new_node, NULL, 31);
551 * Creates an sparc Div.
553 * @return the created sparc Div node
555 static ir_node *gen_Div(ir_node *node)
557 dbg_info *dbgi = get_irn_dbg_info(node);
558 ir_node *block = get_nodes_block(node);
559 ir_node *new_block = be_transform_node(block);
560 ir_mode *mode = get_Div_resmode(node);
561 ir_node *left = get_Div_left(node);
562 ir_node *left_low = be_transform_node(left);
563 ir_node *right = get_Div_right(node);
566 assert(!mode_is_float(mode));
567 if (mode_is_signed(mode)) {
568 ir_node *left_high = gen_sign_extension_value(left);
570 if (is_imm_encodeable(right)) {
571 int32_t immediate = get_tarval_long(get_Const_tarval(right));
572 res = new_bd_sparc_SDiv_imm(dbgi, new_block, left_high, left_low,
575 ir_node *new_right = be_transform_node(right);
576 res = new_bd_sparc_SDiv_reg(dbgi, new_block, left_high, left_low,
580 ir_node *left_high = get_g0();
581 if (is_imm_encodeable(right)) {
582 int32_t immediate = get_tarval_long(get_Const_tarval(right));
583 res = new_bd_sparc_UDiv_imm(dbgi, new_block, left_high, left_low,
586 ir_node *new_right = be_transform_node(right);
587 res = new_bd_sparc_UDiv_reg(dbgi, new_block, left_high, left_low,
595 static ir_node *gen_Quot(ir_node *node)
597 ir_mode *mode = get_Quot_resmode(node);
598 assert(mode_is_float(mode));
599 return gen_helper_binfpop(node, mode, new_bd_sparc_fdiv_s,
600 new_bd_sparc_fdiv_d, new_bd_sparc_fdiv_q);
603 static ir_node *gen_Abs(ir_node *node)
605 ir_mode *const mode = get_irn_mode(node);
607 if (mode_is_float(mode)) {
608 return gen_helper_unfpop(node, mode, new_bd_sparc_fabs_s,
609 new_bd_sparc_fabs_d, new_bd_sparc_fabs_q);
611 ir_node *const block = be_transform_node(get_nodes_block(node));
612 dbg_info *const dbgi = get_irn_dbg_info(node);
613 ir_node *const op = get_Abs_op(node);
614 ir_node *const new_op = be_transform_node(op);
615 ir_node *const sra = new_bd_sparc_Sra_imm(dbgi, block, new_op, NULL, 31);
616 ir_node *const xor = new_bd_sparc_Xor_reg(dbgi, block, new_op, sra);
617 ir_node *const sub = new_bd_sparc_Sub_reg(dbgi, block, xor, sra);
623 * Transforms a Not node.
625 * @return the created sparc Not node
627 static ir_node *gen_Not(ir_node *node)
629 ir_node *op = get_Not_op(node);
630 ir_node *zero = get_g0();
631 dbg_info *dbgi = get_irn_dbg_info(node);
632 ir_node *block = be_transform_node(get_nodes_block(node));
633 ir_node *new_op = be_transform_node(op);
635 /* Note: Not(Eor()) is normalize in firm locatopts already so
636 * we don't match it for xnor here */
638 /* Not can be represented with xnor 0, n */
639 return new_bd_sparc_XNor_reg(dbgi, block, zero, new_op);
642 static ir_node *gen_And(ir_node *node)
644 ir_node *left = get_And_left(node);
645 ir_node *right = get_And_right(node);
648 ir_node *not_op = get_Not_op(right);
649 return gen_helper_binop_args(node, left, not_op, MATCH_NONE,
650 new_bd_sparc_AndN_reg,
651 new_bd_sparc_AndN_imm);
654 ir_node *not_op = get_Not_op(left);
655 return gen_helper_binop_args(node, right, not_op, MATCH_NONE,
656 new_bd_sparc_AndN_reg,
657 new_bd_sparc_AndN_imm);
660 return gen_helper_binop(node, MATCH_COMMUTATIVE, new_bd_sparc_And_reg,
661 new_bd_sparc_And_imm);
664 static ir_node *gen_Or(ir_node *node)
666 ir_node *left = get_Or_left(node);
667 ir_node *right = get_Or_right(node);
670 ir_node *not_op = get_Not_op(right);
671 return gen_helper_binop_args(node, left, not_op, MATCH_NONE,
672 new_bd_sparc_OrN_reg,
673 new_bd_sparc_OrN_imm);
676 ir_node *not_op = get_Not_op(left);
677 return gen_helper_binop_args(node, right, not_op, MATCH_NONE,
678 new_bd_sparc_OrN_reg,
679 new_bd_sparc_OrN_imm);
682 return gen_helper_binop(node, MATCH_COMMUTATIVE, new_bd_sparc_Or_reg,
683 new_bd_sparc_Or_imm);
686 static ir_node *gen_Eor(ir_node *node)
688 ir_node *left = get_Eor_left(node);
689 ir_node *right = get_Eor_right(node);
692 ir_node *not_op = get_Not_op(right);
693 return gen_helper_binop_args(node, left, not_op, MATCH_COMMUTATIVE,
694 new_bd_sparc_XNor_reg,
695 new_bd_sparc_XNor_imm);
698 ir_node *not_op = get_Not_op(left);
699 return gen_helper_binop_args(node, not_op, right,
700 MATCH_COMMUTATIVE | MATCH_MODE_NEUTRAL,
701 new_bd_sparc_XNor_reg,
702 new_bd_sparc_XNor_imm);
705 return gen_helper_binop(node, MATCH_COMMUTATIVE, new_bd_sparc_Xor_reg,
706 new_bd_sparc_Xor_imm);
709 static ir_node *gen_Shl(ir_node *node)
711 return gen_helper_binop(node, MATCH_NONE, new_bd_sparc_Sll_reg, new_bd_sparc_Sll_imm);
714 static ir_node *gen_Shr(ir_node *node)
716 return gen_helper_binop(node, MATCH_NONE, new_bd_sparc_Slr_reg, new_bd_sparc_Slr_imm);
719 static ir_node *gen_Shrs(ir_node *node)
721 return gen_helper_binop(node, MATCH_NONE, new_bd_sparc_Sra_reg, new_bd_sparc_Sra_imm);
725 * Transforms a Minus node.
727 static ir_node *gen_Minus(ir_node *node)
729 ir_mode *mode = get_irn_mode(node);
736 if (mode_is_float(mode)) {
737 return gen_helper_unfpop(node, mode, new_bd_sparc_fneg_s,
738 new_bd_sparc_fneg_d, new_bd_sparc_fneg_q);
740 block = be_transform_node(get_nodes_block(node));
741 dbgi = get_irn_dbg_info(node);
742 op = get_Minus_op(node);
743 new_op = be_transform_node(op);
745 return new_bd_sparc_Sub_reg(dbgi, block, zero, new_op);
749 * Create an entity for a given (floating point) tarval
751 static ir_entity *create_float_const_entity(tarval *tv)
753 ir_entity *entity = (ir_entity*) pmap_get(env_cg->constants, tv);
754 ir_initializer_t *initializer;
762 mode = get_tarval_mode(tv);
763 type = get_type_for_mode(mode);
764 glob = get_glob_type();
765 entity = new_entity(glob, id_unique("C%u"), type);
766 set_entity_visibility(entity, ir_visibility_private);
767 add_entity_linkage(entity, IR_LINKAGE_CONSTANT);
769 initializer = create_initializer_tarval(tv);
770 set_entity_initializer(entity, initializer);
772 pmap_insert(env_cg->constants, tv, entity);
776 static ir_node *gen_Const(ir_node *node)
778 ir_node *block = be_transform_node(get_nodes_block(node));
779 ir_mode *mode = get_irn_mode(node);
780 dbg_info *dbgi = get_irn_dbg_info(node);
784 if (mode_is_float(mode)) {
785 tarval *tv = get_Const_tarval(node);
786 ir_entity *entity = create_float_const_entity(tv);
787 ir_node *hi = new_bd_sparc_SetHi(dbgi, block, entity, 0);
788 ir_node *mem = new_NoMem();
790 = create_ldf(dbgi, block, hi, mem, mode, entity, 0, false);
791 ir_node *proj = new_Proj(new_op, mode, pn_sparc_Ldf_res);
794 set_irn_pinned(new_op, op_pin_state_floats);
798 tv = get_Const_tarval(node);
799 value = get_tarval_long(tv);
802 } else if (-4096 <= value && value <= 4095) {
803 return new_bd_sparc_Or_imm(dbgi, block, get_g0(), NULL, value);
805 ir_node *hi = new_bd_sparc_SetHi(dbgi, block, NULL, value);
807 if ((value & 0x3ff) != 0) {
808 return new_bd_sparc_Or_imm(dbgi, block, hi, NULL, value & 0x3ff);
815 static ir_mode *get_cmp_mode(ir_node *b_value)
820 if (!is_Proj(b_value))
821 panic("can't determine cond signednes");
822 pred = get_Proj_pred(b_value);
824 panic("can't determine cond signednes (no cmp)");
825 op = get_Cmp_left(pred);
826 return get_irn_mode(op);
830 * Transform Cond nodes
832 static ir_node *gen_Cond(ir_node *node)
834 ir_node *selector = get_Cond_selector(node);
835 ir_mode *mode = get_irn_mode(selector);
844 if (mode != mode_b) {
845 panic("SwitchJump not implemented yet");
848 // regular if/else jumps
849 assert(is_Proj(selector));
850 assert(is_Cmp(get_Proj_pred(selector)));
852 cmp_mode = get_cmp_mode(selector);
854 block = be_transform_node(get_nodes_block(node));
855 dbgi = get_irn_dbg_info(node);
856 flag_node = be_transform_node(get_Proj_pred(selector));
857 pnc = get_Proj_proj(selector);
858 is_unsigned = !mode_is_signed(cmp_mode);
859 if (mode_is_float(cmp_mode)) {
860 assert(!is_unsigned);
861 return new_bd_sparc_fbfcc(dbgi, block, flag_node, pnc);
863 return new_bd_sparc_Bicc(dbgi, block, flag_node, pnc, is_unsigned);
870 static ir_node *gen_Cmp(ir_node *node)
872 ir_node *block = be_transform_node(get_nodes_block(node));
873 ir_node *op1 = get_Cmp_left(node);
874 ir_node *op2 = get_Cmp_right(node);
875 ir_mode *cmp_mode = get_irn_mode(op1);
876 dbg_info *dbgi = get_irn_dbg_info(node);
877 ir_node *new_op1 = be_transform_node(op1);
878 ir_node *new_op2 = be_transform_node(op2);
879 assert(get_irn_mode(op2) == cmp_mode);
881 if (mode_is_float(cmp_mode)) {
882 unsigned bits = get_mode_size_bits(cmp_mode);
884 return new_bd_sparc_fcmp_s(dbgi, block, new_op1, new_op2, cmp_mode);
885 } else if (bits == 64) {
886 return new_bd_sparc_fcmp_d(dbgi, block, new_op1, new_op2, cmp_mode);
889 return new_bd_sparc_fcmp_q(dbgi, block, new_op1, new_op2, cmp_mode);
893 /* integer compare */
894 new_op1 = gen_extension(dbgi, block, new_op1, cmp_mode);
895 new_op2 = gen_extension(dbgi, block, new_op2, cmp_mode);
896 return new_bd_sparc_Cmp_reg(dbgi, block, new_op1, new_op2);
900 * Transforms a SymConst node.
902 static ir_node *gen_SymConst(ir_node *node)
904 ir_entity *entity = get_SymConst_entity(node);
905 dbg_info *dbgi = get_irn_dbg_info(node);
906 ir_node *block = get_nodes_block(node);
907 ir_node *new_block = be_transform_node(block);
908 ir_node *hi = new_bd_sparc_SetHi(dbgi, new_block, entity, 0);
909 ir_node *low = new_bd_sparc_Or_imm(dbgi, new_block, hi, entity, 0);
915 static ir_node *create_fftof(dbg_info *dbgi, ir_node *block, ir_node *op,
916 ir_mode *src_mode, ir_mode *dst_mode)
918 unsigned src_bits = get_mode_size_bits(src_mode);
919 unsigned dst_bits = get_mode_size_bits(dst_mode);
920 if (src_bits == 32) {
921 if (dst_bits == 64) {
922 return new_bd_sparc_fftof_s_d(dbgi, block, op, src_mode, dst_mode);
924 assert(dst_bits == 128);
925 return new_bd_sparc_fftof_s_q(dbgi, block, op, src_mode, dst_mode);
927 } else if (src_bits == 64) {
928 if (dst_bits == 32) {
929 return new_bd_sparc_fftof_d_s(dbgi, block, op, src_mode, dst_mode);
931 assert(dst_bits == 128);
932 return new_bd_sparc_fftof_d_q(dbgi, block, op, src_mode, dst_mode);
935 assert(src_bits == 128);
936 if (dst_bits == 32) {
937 return new_bd_sparc_fftof_q_s(dbgi, block, op, src_mode, dst_mode);
939 assert(dst_bits == 64);
940 return new_bd_sparc_fftof_q_d(dbgi, block, op, src_mode, dst_mode);
945 static ir_node *create_ftoi(dbg_info *dbgi, ir_node *block, ir_node *op,
948 unsigned bits = get_mode_size_bits(src_mode);
950 return new_bd_sparc_fftoi_s(dbgi, block, op, src_mode);
951 } else if (bits == 64) {
952 return new_bd_sparc_fftoi_d(dbgi, block, op, src_mode);
955 return new_bd_sparc_fftoi_q(dbgi, block, op, src_mode);
959 static ir_node *create_itof(dbg_info *dbgi, ir_node *block, ir_node *op,
962 unsigned bits = get_mode_size_bits(dst_mode);
964 return new_bd_sparc_fitof_s(dbgi, block, op, dst_mode);
965 } else if (bits == 64) {
966 return new_bd_sparc_fitof_d(dbgi, block, op, dst_mode);
969 return new_bd_sparc_fitof_q(dbgi, block, op, dst_mode);
974 * Transforms a Conv node.
977 static ir_node *gen_Conv(ir_node *node)
979 ir_node *block = be_transform_node(get_nodes_block(node));
980 ir_node *op = get_Conv_op(node);
981 ir_node *new_op = be_transform_node(op);
982 ir_mode *src_mode = get_irn_mode(op);
983 ir_mode *dst_mode = get_irn_mode(node);
984 dbg_info *dbg = get_irn_dbg_info(node);
986 int src_bits = get_mode_size_bits(src_mode);
987 int dst_bits = get_mode_size_bits(dst_mode);
989 if (src_mode == dst_mode)
992 if (mode_is_float(src_mode) || mode_is_float(dst_mode)) {
993 assert((src_bits <= 64 && dst_bits <= 64) && "quad FP not implemented");
995 if (mode_is_float(src_mode)) {
996 if (mode_is_float(dst_mode)) {
997 /* float -> float conv */
998 return create_fftof(dbg, block, new_op, src_mode, dst_mode);
1000 /* float -> int conv */
1001 if (!mode_is_signed(dst_mode))
1002 panic("float to unsigned not implemented yet");
1003 return create_ftoi(dbg, block, new_op, src_mode);
1006 /* int -> float conv */
1007 if (!mode_is_signed(src_mode))
1008 panic("unsigned to float not implemented yet");
1009 return create_itof(dbg, block, new_op, dst_mode);
1011 } else { /* complete in gp registers */
1015 if (src_bits == dst_bits) {
1016 /* kill unnecessary conv */
1020 if (src_bits < dst_bits) {
1021 min_bits = src_bits;
1022 min_mode = src_mode;
1024 min_bits = dst_bits;
1025 min_mode = dst_mode;
1028 if (upper_bits_clean(new_op, min_mode)) {
1032 if (mode_is_signed(min_mode)) {
1033 return gen_sign_extension(dbg, block, new_op, min_bits);
1035 return gen_zero_extension(dbg, block, new_op, min_bits);
1040 static ir_node *gen_Unknown(ir_node *node)
1042 /* just produce a 0 */
1043 ir_mode *mode = get_irn_mode(node);
1044 if (mode_is_float(mode)) {
1045 panic("FP not implemented");
1046 be_dep_on_frame(node);
1048 } else if (mode_needs_gp_reg(mode)) {
1052 panic("Unexpected Unknown mode");
1056 * Produces the type which sits between the stack args and the locals on the
1059 static ir_type *sparc_get_between_type(void)
1061 static ir_type *between_type = NULL;
1063 if (between_type == NULL) {
1064 between_type = new_type_class(new_id_from_str("sparc_between_type"));
1065 set_type_size_bytes(between_type, SPARC_MIN_STACKSIZE);
1068 return between_type;
1071 static void create_stacklayout(ir_graph *irg)
1073 ir_entity *entity = get_irg_entity(irg);
1074 ir_type *function_type = get_entity_type(entity);
1075 be_stack_layout_t *layout = be_get_irg_stack_layout(irg);
1080 /* calling conventions must be decided by now */
1081 assert(cconv != NULL);
1083 /* construct argument type */
1084 arg_type = new_type_struct(id_mangle_u(get_entity_ident(entity), new_id_from_chars("arg_type", 8)));
1085 n_params = get_method_n_params(function_type);
1086 for (p = 0; p < n_params; ++p) {
1087 reg_or_stackslot_t *param = &cconv->parameters[p];
1091 if (param->type == NULL)
1094 snprintf(buf, sizeof(buf), "param_%d", p);
1095 id = new_id_from_str(buf);
1096 param->entity = new_entity(arg_type, id, param->type);
1097 set_entity_offset(param->entity, param->offset);
1100 memset(layout, 0, sizeof(*layout));
1102 layout->frame_type = get_irg_frame_type(irg);
1103 layout->between_type = sparc_get_between_type();
1104 layout->arg_type = arg_type;
1105 layout->initial_offset = 0;
1106 layout->initial_bias = 0;
1107 layout->stack_dir = -1;
1108 layout->sp_relative = false;
1110 assert(N_FRAME_TYPES == 3);
1111 layout->order[0] = layout->frame_type;
1112 layout->order[1] = layout->between_type;
1113 layout->order[2] = layout->arg_type;
1117 * transform the start node to the prolog code + initial barrier
1119 static ir_node *gen_Start(ir_node *node)
1121 ir_graph *irg = get_irn_irg(node);
1122 ir_entity *entity = get_irg_entity(irg);
1123 ir_type *function_type = get_entity_type(entity);
1124 ir_node *block = get_nodes_block(node);
1125 ir_node *new_block = be_transform_node(block);
1126 dbg_info *dbgi = get_irn_dbg_info(node);
1135 /* stackpointer is important at function prolog */
1136 be_prolog_add_reg(abihelper, sp_reg,
1137 arch_register_req_type_produces_sp | arch_register_req_type_ignore);
1138 be_prolog_add_reg(abihelper, &sparc_gp_regs[REG_G0],
1139 arch_register_req_type_ignore);
1140 /* function parameters in registers */
1141 for (i = 0; i < get_method_n_params(function_type); ++i) {
1142 const reg_or_stackslot_t *param = &cconv->parameters[i];
1143 if (param->reg0 != NULL)
1144 be_prolog_add_reg(abihelper, param->reg0, 0);
1145 if (param->reg1 != NULL)
1146 be_prolog_add_reg(abihelper, param->reg1, 0);
1149 start = be_prolog_create_start(abihelper, dbgi, new_block);
1151 mem = be_prolog_get_memory(abihelper);
1152 sp = be_prolog_get_reg_value(abihelper, sp_reg);
1153 save = new_bd_sparc_Save(NULL, block, sp, mem, SPARC_MIN_STACKSIZE);
1154 fp = new_r_Proj(save, mode_gp, pn_sparc_Save_frame);
1155 sp = new_r_Proj(save, mode_gp, pn_sparc_Save_stack);
1156 mem = new_r_Proj(save, mode_M, pn_sparc_Save_mem);
1157 arch_set_irn_register(fp, fp_reg);
1158 arch_set_irn_register(sp, sp_reg);
1160 be_prolog_add_reg(abihelper, fp_reg, arch_register_req_type_ignore);
1161 be_prolog_set_reg_value(abihelper, fp_reg, fp);
1163 sp = be_new_IncSP(sp_reg, new_block, sp, BE_STACK_FRAME_SIZE_EXPAND, 0);
1164 be_prolog_set_reg_value(abihelper, sp_reg, sp);
1165 be_prolog_set_memory(abihelper, mem);
1167 barrier = be_prolog_create_barrier(abihelper, new_block);
1172 static ir_node *get_stack_pointer_for(ir_node *node)
1174 /* get predecessor in stack_order list */
1175 ir_node *stack_pred = be_get_stack_pred(abihelper, node);
1176 ir_node *stack_pred_transformed;
1179 if (stack_pred == NULL) {
1180 /* first stack user in the current block. We can simply use the
1181 * initial sp_proj for it */
1182 ir_node *sp_proj = be_prolog_get_reg_value(abihelper, sp_reg);
1186 stack_pred_transformed = be_transform_node(stack_pred);
1187 stack = pmap_get(node_to_stack, stack_pred);
1188 if (stack == NULL) {
1189 return get_stack_pointer_for(stack_pred);
1196 * transform a Return node into epilogue code + return statement
1198 static ir_node *gen_Return(ir_node *node)
1200 ir_node *block = get_nodes_block(node);
1201 ir_node *new_block = be_transform_node(block);
1202 dbg_info *dbgi = get_irn_dbg_info(node);
1203 ir_node *mem = get_Return_mem(node);
1204 ir_node *new_mem = be_transform_node(mem);
1205 ir_node *sp_proj = get_stack_pointer_for(node);
1206 int n_res = get_Return_n_ress(node);
1211 be_epilog_begin(abihelper);
1212 be_epilog_set_memory(abihelper, new_mem);
1213 /* connect stack pointer with initial stack pointer. fix_stack phase
1214 will later serialize all stack pointer adjusting nodes */
1215 be_epilog_add_reg(abihelper, sp_reg,
1216 arch_register_req_type_produces_sp | arch_register_req_type_ignore,
1220 for (i = 0; i < n_res; ++i) {
1221 ir_node *res_value = get_Return_res(node, i);
1222 ir_node *new_res_value = be_transform_node(res_value);
1223 const reg_or_stackslot_t *slot = &cconv->results[i];
1224 const arch_register_t *reg = slot->reg0;
1225 assert(slot->reg1 == NULL);
1226 be_epilog_add_reg(abihelper, reg, 0, new_res_value);
1229 /* create the barrier before the epilog code */
1230 be_epilog_create_barrier(abihelper, new_block);
1232 /* epilog code: an incsp */
1233 sp_proj = be_epilog_get_reg_value(abihelper, sp_reg);
1234 incsp = be_new_IncSP(sp_reg, new_block, sp_proj,
1235 BE_STACK_FRAME_SIZE_SHRINK, 0);
1236 be_epilog_set_reg_value(abihelper, sp_reg, incsp);
1238 bereturn = be_epilog_create_return(abihelper, dbgi, new_block);
1243 static ir_node *bitcast_int_to_float(dbg_info *dbgi, ir_node *block,
1244 ir_node *value0, ir_node *value1)
1246 ir_graph *irg = current_ir_graph;
1247 ir_node *sp = get_irg_frame(irg);
1248 ir_node *nomem = new_NoMem();
1249 ir_node *st = new_bd_sparc_St(dbgi, block, sp, value0, nomem, mode_gp,
1254 set_irn_pinned(st, op_pin_state_floats);
1256 if (value1 != NULL) {
1257 ir_node *st1 = new_bd_sparc_St(dbgi, block, sp, value1, nomem, mode_gp,
1259 ir_node *in[2] = { st, st1 };
1260 ir_node *sync = new_r_Sync(block, 2, in);
1261 set_irn_pinned(st1, op_pin_state_floats);
1269 ldf = create_ldf(dbgi, block, sp, mem, mode, NULL, 0, true);
1270 set_irn_pinned(ldf, op_pin_state_floats);
1272 return new_Proj(ldf, mode, pn_sparc_Ldf_res);
1275 static void bitcast_float_to_int(dbg_info *dbgi, ir_node *block,
1276 ir_node *node, ir_mode *float_mode,
1279 ir_graph *irg = current_ir_graph;
1280 ir_node *stack = get_irg_frame(irg);
1281 ir_node *nomem = new_NoMem();
1282 ir_node *stf = create_stf(dbgi, block, stack, node, nomem, float_mode,
1284 int bits = get_mode_size_bits(float_mode);
1286 set_irn_pinned(stf, op_pin_state_floats);
1288 ld = new_bd_sparc_Ld(dbgi, block, stack, stf, mode_gp, NULL, 0, true);
1289 set_irn_pinned(ld, op_pin_state_floats);
1290 result[0] = new_Proj(ld, mode_gp, pn_sparc_Ld_res);
1293 ir_node *ld2 = new_bd_sparc_Ld(dbgi, block, stack, stf, mode_gp,
1295 set_irn_pinned(ld, op_pin_state_floats);
1296 result[1] = new_Proj(ld2, mode_gp, pn_sparc_Ld_res);
1298 arch_irn_add_flags(ld, sparc_arch_irn_flag_needs_64bit_spillslot);
1299 arch_irn_add_flags(ld2, sparc_arch_irn_flag_needs_64bit_spillslot);
1306 static ir_node *gen_Call(ir_node *node)
1308 ir_graph *irg = get_irn_irg(node);
1309 ir_node *callee = get_Call_ptr(node);
1310 ir_node *block = get_nodes_block(node);
1311 ir_node *new_block = be_transform_node(block);
1312 ir_node *mem = get_Call_mem(node);
1313 ir_node *new_mem = be_transform_node(mem);
1314 dbg_info *dbgi = get_irn_dbg_info(node);
1315 ir_type *type = get_Call_type(node);
1316 int n_params = get_Call_n_params(node);
1317 int n_param_regs = sizeof(param_regs)/sizeof(param_regs[0]);
1318 /* max inputs: memory, callee, register arguments */
1319 int max_inputs = 2 + n_param_regs;
1320 ir_node **in = ALLOCAN(ir_node*, max_inputs);
1321 ir_node **sync_ins = ALLOCAN(ir_node*, max_inputs);
1322 struct obstack *obst = be_get_be_obst(irg);
1323 const arch_register_req_t **in_req
1324 = OALLOCNZ(obst, const arch_register_req_t*, max_inputs);
1325 calling_convention_t *cconv
1326 = sparc_decide_calling_convention(type, true);
1330 = sizeof(caller_saves)/sizeof(caller_saves[0]);
1331 ir_entity *entity = NULL;
1332 ir_node *new_frame = get_stack_pointer_for(node);
1341 assert(n_params == get_method_n_params(type));
1343 /* construct arguments */
1346 in_req[in_arity] = arch_no_register_req;
1350 /* stack pointer input */
1351 /* construct an IncSP -> we have to always be sure that the stack is
1352 * aligned even if we don't push arguments on it */
1353 incsp = be_new_IncSP(sp_reg, new_block, new_frame,
1354 cconv->param_stack_size, 1);
1355 in_req[in_arity] = sp_reg->single_req;
1356 in[in_arity] = incsp;
1360 for (p = 0; p < n_params; ++p) {
1361 ir_node *value = get_Call_param(node, p);
1362 ir_node *new_value = be_transform_node(value);
1363 const reg_or_stackslot_t *param = &cconv->parameters[p];
1364 ir_type *param_type = get_method_param_type(type, p);
1365 ir_mode *mode = get_type_mode(param_type);
1366 ir_node *new_values[2];
1369 if (mode_is_float(mode) && param->reg0 != NULL) {
1370 unsigned size_bits = get_mode_size_bits(mode);
1371 assert(size_bits <= 64);
1372 bitcast_float_to_int(dbgi, new_block, new_value, mode, new_values);
1374 new_values[0] = new_value;
1375 new_values[1] = NULL;
1378 /* put value into registers */
1379 if (param->reg0 != NULL) {
1380 in[in_arity] = new_values[0];
1381 in_req[in_arity] = param->reg0->single_req;
1383 if (new_values[1] == NULL)
1386 if (param->reg1 != NULL) {
1387 assert(new_values[1] != NULL);
1388 in[in_arity] = new_values[1];
1389 in_req[in_arity] = param->reg1->single_req;
1394 /* we need a store if we're here */
1395 if (new_values[1] != NULL) {
1396 new_value = new_values[1];
1400 /* create a parameter frame if necessary */
1401 if (mode_is_float(mode)) {
1402 str = create_stf(dbgi, new_block, incsp, new_value, new_mem,
1403 mode, NULL, param->offset, true);
1405 str = new_bd_sparc_St(dbgi, new_block, incsp, new_value, new_mem,
1406 mode, NULL, param->offset, true);
1408 set_irn_pinned(str, op_pin_state_floats);
1409 sync_ins[sync_arity++] = str;
1411 assert(in_arity <= max_inputs);
1413 /* construct memory input */
1414 if (sync_arity == 0) {
1415 in[mem_pos] = new_mem;
1416 } else if (sync_arity == 1) {
1417 in[mem_pos] = sync_ins[0];
1419 in[mem_pos] = new_rd_Sync(NULL, new_block, sync_arity, sync_ins);
1422 if (is_SymConst(callee)) {
1423 entity = get_SymConst_entity(callee);
1425 in[in_arity] = be_transform_node(callee);
1426 in_req[in_arity] = sparc_reg_classes[CLASS_sparc_gp].class_req;
1434 out_arity = 1 + n_caller_saves;
1436 /* create call node */
1437 if (entity != NULL) {
1438 res = new_bd_sparc_Call_imm(dbgi, new_block, in_arity, in, out_arity,
1441 res = new_bd_sparc_Call_reg(dbgi, new_block, in_arity, in, out_arity);
1443 set_sparc_in_req_all(res, in_req);
1445 /* create output register reqs */
1447 arch_set_out_register_req(res, o++, arch_no_register_req);
1448 for (i = 0; i < n_caller_saves; ++i) {
1449 const arch_register_t *reg = caller_saves[i];
1450 arch_set_out_register_req(res, o++, reg->single_req);
1452 assert(o == out_arity);
1454 /* copy pinned attribute */
1455 set_irn_pinned(res, get_irn_pinned(node));
1457 /* IncSP to destroy the call stackframe */
1458 incsp = be_new_IncSP(sp_reg, new_block, incsp, -cconv->param_stack_size, 0);
1459 /* if we are the last IncSP producer in a block then we have to keep
1461 * Note: This here keeps all producers which is more than necessary */
1462 add_irn_dep(incsp, res);
1465 pmap_insert(node_to_stack, node, incsp);
1467 sparc_free_calling_convention(cconv);
1471 static ir_node *gen_Sel(ir_node *node)
1473 dbg_info *dbgi = get_irn_dbg_info(node);
1474 ir_node *block = get_nodes_block(node);
1475 ir_node *new_block = be_transform_node(block);
1476 ir_node *ptr = get_Sel_ptr(node);
1477 ir_node *new_ptr = be_transform_node(ptr);
1478 ir_entity *entity = get_Sel_entity(node);
1480 /* must be the frame pointer all other sels must have been lowered
1482 assert(is_Proj(ptr) && is_Start(get_Proj_pred(ptr)));
1483 /* we should not have value types from parameters anymore - they should be
1485 assert(get_entity_owner(entity) !=
1486 get_method_value_param_type(get_entity_type(get_irg_entity(get_irn_irg(node)))));
1488 return new_bd_sparc_FrameAddr(dbgi, new_block, new_ptr, entity, 0);
1491 static const arch_register_req_t float1_req = {
1492 arch_register_req_type_normal,
1493 &sparc_reg_classes[CLASS_sparc_fp],
1499 static const arch_register_req_t float2_req = {
1500 arch_register_req_type_normal | arch_register_req_type_aligned,
1501 &sparc_reg_classes[CLASS_sparc_fp],
1507 static const arch_register_req_t float4_req = {
1508 arch_register_req_type_normal | arch_register_req_type_aligned,
1509 &sparc_reg_classes[CLASS_sparc_fp],
1517 static const arch_register_req_t *get_float_req(ir_mode *mode)
1519 unsigned bits = get_mode_size_bits(mode);
1521 assert(mode_is_float(mode));
1524 } else if (bits == 64) {
1527 assert(bits == 128);
1533 * Transform some Phi nodes
1535 static ir_node *gen_Phi(ir_node *node)
1537 const arch_register_req_t *req;
1538 ir_node *block = be_transform_node(get_nodes_block(node));
1539 ir_graph *irg = current_ir_graph;
1540 dbg_info *dbgi = get_irn_dbg_info(node);
1541 ir_mode *mode = get_irn_mode(node);
1544 if (mode_needs_gp_reg(mode)) {
1545 /* we shouldn't have any 64bit stuff around anymore */
1546 assert(get_mode_size_bits(mode) <= 32);
1547 /* all integer operations are on 32bit registers now */
1549 req = sparc_reg_classes[CLASS_sparc_gp].class_req;
1550 } else if (mode_is_float(mode)) {
1552 req = get_float_req(mode);
1554 req = arch_no_register_req;
1557 /* phi nodes allow loops, so we use the old arguments for now
1558 * and fix this later */
1559 phi = new_ir_node(dbgi, irg, block, op_Phi, mode, get_irn_arity(node), get_irn_in(node) + 1);
1560 copy_node_attr(irg, node, phi);
1561 be_duplicate_deps(node, phi);
1562 arch_set_out_register_req(phi, 0, req);
1563 be_enqueue_preds(node);
1568 * Transform a Proj from a Load.
1570 static ir_node *gen_Proj_Load(ir_node *node)
1572 ir_node *load = get_Proj_pred(node);
1573 ir_node *new_load = be_transform_node(load);
1574 dbg_info *dbgi = get_irn_dbg_info(node);
1575 long pn = get_Proj_proj(node);
1577 /* renumber the proj */
1578 switch (get_sparc_irn_opcode(new_load)) {
1580 /* handle all gp loads equal: they have the same proj numbers. */
1581 if (pn == pn_Load_res) {
1582 return new_rd_Proj(dbgi, new_load, mode_gp, pn_sparc_Ld_res);
1583 } else if (pn == pn_Load_M) {
1584 return new_rd_Proj(dbgi, new_load, mode_M, pn_sparc_Ld_M);
1588 if (pn == pn_Load_res) {
1589 return new_rd_Proj(dbgi, new_load, mode_fp, pn_sparc_Ldf_res);
1590 } else if (pn == pn_Load_M) {
1591 return new_rd_Proj(dbgi, new_load, mode_M, pn_sparc_Ld_M);
1597 panic("Unsupported Proj from Load");
1600 static ir_node *gen_Proj_Store(ir_node *node)
1602 ir_node *store = get_Proj_pred(node);
1603 ir_node *new_store = be_transform_node(store);
1604 long pn = get_Proj_proj(node);
1606 /* renumber the proj */
1607 switch (get_sparc_irn_opcode(new_store)) {
1609 if (pn == pn_Store_M) {
1614 if (pn == pn_Store_M) {
1621 panic("Unsupported Proj from Store");
1625 * Transform the Projs from a Cmp.
1627 static ir_node *gen_Proj_Cmp(ir_node *node)
1630 panic("not implemented");
1634 * transform Projs from a Div
1636 static ir_node *gen_Proj_Div(ir_node *node)
1638 ir_node *pred = get_Proj_pred(node);
1639 ir_node *new_pred = be_transform_node(pred);
1640 long pn = get_Proj_proj(node);
1642 assert(is_sparc_SDiv(new_pred) || is_sparc_UDiv(new_pred));
1643 assert(pn_sparc_SDiv_res == pn_sparc_UDiv_res);
1644 assert(pn_sparc_SDiv_M == pn_sparc_UDiv_M);
1647 return new_r_Proj(new_pred, mode_gp, pn_sparc_SDiv_res);
1649 return new_r_Proj(new_pred, mode_gp, pn_sparc_SDiv_M);
1653 panic("Unsupported Proj from Div");
1656 static ir_node *gen_Proj_Quot(ir_node *node)
1658 ir_node *pred = get_Proj_pred(node);
1659 ir_node *new_pred = be_transform_node(pred);
1660 long pn = get_Proj_proj(node);
1662 assert(is_sparc_fdiv(new_pred));
1665 return new_r_Proj(new_pred, mode_gp, pn_sparc_fdiv_res);
1667 return new_r_Proj(new_pred, mode_gp, pn_sparc_fdiv_M);
1671 panic("Unsupported Proj from Quot");
1674 static ir_node *gen_Proj_Start(ir_node *node)
1676 ir_node *block = get_nodes_block(node);
1677 ir_node *new_block = be_transform_node(block);
1678 ir_node *barrier = be_transform_node(get_Proj_pred(node));
1679 long pn = get_Proj_proj(node);
1681 switch ((pn_Start) pn) {
1682 case pn_Start_X_initial_exec:
1683 /* exchange ProjX with a jump */
1684 return new_bd_sparc_Ba(NULL, new_block);
1686 return new_r_Proj(barrier, mode_M, 0);
1687 case pn_Start_T_args:
1689 case pn_Start_P_frame_base:
1690 return be_prolog_get_reg_value(abihelper, fp_reg);
1691 case pn_Start_P_tls:
1696 panic("Unexpected start proj: %ld\n", pn);
1699 static ir_node *gen_Proj_Proj_Start(ir_node *node)
1701 long pn = get_Proj_proj(node);
1702 ir_node *block = get_nodes_block(node);
1703 ir_node *new_block = be_transform_node(block);
1704 ir_entity *entity = get_irg_entity(current_ir_graph);
1705 ir_type *method_type = get_entity_type(entity);
1706 ir_type *param_type = get_method_param_type(method_type, pn);
1707 const reg_or_stackslot_t *param;
1709 /* Proj->Proj->Start must be a method argument */
1710 assert(get_Proj_proj(get_Proj_pred(node)) == pn_Start_T_args);
1712 param = &cconv->parameters[pn];
1714 if (param->reg0 != NULL) {
1715 /* argument transmitted in register */
1716 ir_mode *mode = get_type_mode(param_type);
1717 const arch_register_t *reg = param->reg0;
1718 ir_node *value = be_prolog_get_reg_value(abihelper, reg);
1720 if (mode_is_float(mode)) {
1721 ir_node *value1 = NULL;
1723 if (param->reg1 != NULL) {
1724 value1 = be_prolog_get_reg_value(abihelper, param->reg1);
1725 } else if (param->entity != NULL) {
1726 ir_node *fp = be_prolog_get_reg_value(abihelper, fp_reg);
1727 ir_node *mem = be_prolog_get_memory(abihelper);
1728 ir_node *ld = new_bd_sparc_Ld(NULL, new_block, fp, mem,
1729 mode_gp, param->entity,
1731 value1 = new_Proj(ld, mode_gp, pn_sparc_Ld_res);
1734 /* convert integer value to float */
1735 value = bitcast_int_to_float(NULL, new_block, value, value1);
1739 /* argument transmitted on stack */
1740 ir_node *fp = be_prolog_get_reg_value(abihelper, fp_reg);
1741 ir_node *mem = be_prolog_get_memory(abihelper);
1742 ir_mode *mode = get_type_mode(param->type);
1746 if (mode_is_float(mode)) {
1747 load = create_ldf(NULL, new_block, fp, mem, mode,
1748 param->entity, 0, true);
1749 value = new_r_Proj(load, mode_fp, pn_sparc_Ldf_res);
1751 load = new_bd_sparc_Ld(NULL, new_block, fp, mem, mode,
1752 param->entity, 0, true);
1753 value = new_r_Proj(load, mode_gp, pn_sparc_Ld_res);
1755 set_irn_pinned(load, op_pin_state_floats);
1761 static ir_node *gen_Proj_Call(ir_node *node)
1763 long pn = get_Proj_proj(node);
1764 ir_node *call = get_Proj_pred(node);
1765 ir_node *new_call = be_transform_node(call);
1767 switch ((pn_Call) pn) {
1769 return new_r_Proj(new_call, mode_M, 0);
1770 case pn_Call_X_regular:
1771 case pn_Call_X_except:
1772 case pn_Call_T_result:
1773 case pn_Call_P_value_res_base:
1777 panic("Unexpected Call proj %ld\n", pn);
1781 * Finds number of output value of a mode_T node which is constrained to
1782 * a single specific register.
1784 static int find_out_for_reg(ir_node *node, const arch_register_t *reg)
1786 int n_outs = arch_irn_get_n_outs(node);
1789 for (o = 0; o < n_outs; ++o) {
1790 const arch_register_req_t *req = arch_get_out_register_req(node, o);
1791 if (req == reg->single_req)
1797 static ir_node *gen_Proj_Proj_Call(ir_node *node)
1799 long pn = get_Proj_proj(node);
1800 ir_node *call = get_Proj_pred(get_Proj_pred(node));
1801 ir_node *new_call = be_transform_node(call);
1802 ir_type *function_type = get_Call_type(call);
1803 calling_convention_t *cconv
1804 = sparc_decide_calling_convention(function_type, true);
1805 const reg_or_stackslot_t *res = &cconv->results[pn];
1806 const arch_register_t *reg = res->reg0;
1810 assert(res->reg0 != NULL && res->reg1 == NULL);
1811 regn = find_out_for_reg(new_call, reg);
1813 panic("Internal error in calling convention for return %+F", node);
1815 mode = res->reg0->reg_class->mode;
1817 sparc_free_calling_convention(cconv);
1819 return new_r_Proj(new_call, mode, regn);
1823 * Transform a Proj node.
1825 static ir_node *gen_Proj(ir_node *node)
1827 ir_node *pred = get_Proj_pred(node);
1829 switch (get_irn_opcode(pred)) {
1831 return gen_Proj_Store(node);
1833 return gen_Proj_Load(node);
1835 return gen_Proj_Call(node);
1837 return gen_Proj_Cmp(node);
1839 return be_duplicate_node(node);
1841 return gen_Proj_Div(node);
1843 return gen_Proj_Quot(node);
1845 return gen_Proj_Start(node);
1847 ir_node *pred_pred = get_Proj_pred(pred);
1848 if (is_Call(pred_pred)) {
1849 return gen_Proj_Proj_Call(node);
1850 } else if (is_Start(pred_pred)) {
1851 return gen_Proj_Proj_Start(node);
1856 panic("code selection didn't expect Proj after %+F\n", pred);
1863 static ir_node *gen_Jmp(ir_node *node)
1865 ir_node *block = get_nodes_block(node);
1866 ir_node *new_block = be_transform_node(block);
1867 dbg_info *dbgi = get_irn_dbg_info(node);
1869 return new_bd_sparc_Ba(dbgi, new_block);
1873 * configure transformation callbacks
1875 void sparc_register_transformers(void)
1877 be_start_transform_setup();
1879 be_set_transform_function(op_Abs, gen_Abs);
1880 be_set_transform_function(op_Add, gen_Add);
1881 be_set_transform_function(op_And, gen_And);
1882 be_set_transform_function(op_Call, gen_Call);
1883 be_set_transform_function(op_Cmp, gen_Cmp);
1884 be_set_transform_function(op_Cond, gen_Cond);
1885 be_set_transform_function(op_Const, gen_Const);
1886 be_set_transform_function(op_Conv, gen_Conv);
1887 be_set_transform_function(op_Div, gen_Div);
1888 be_set_transform_function(op_Eor, gen_Eor);
1889 be_set_transform_function(op_Jmp, gen_Jmp);
1890 be_set_transform_function(op_Load, gen_Load);
1891 be_set_transform_function(op_Minus, gen_Minus);
1892 be_set_transform_function(op_Mul, gen_Mul);
1893 be_set_transform_function(op_Mulh, gen_Mulh);
1894 be_set_transform_function(op_Not, gen_Not);
1895 be_set_transform_function(op_Or, gen_Or);
1896 be_set_transform_function(op_Phi, gen_Phi);
1897 be_set_transform_function(op_Proj, gen_Proj);
1898 be_set_transform_function(op_Quot, gen_Quot);
1899 be_set_transform_function(op_Return, gen_Return);
1900 be_set_transform_function(op_Sel, gen_Sel);
1901 be_set_transform_function(op_Shl, gen_Shl);
1902 be_set_transform_function(op_Shr, gen_Shr);
1903 be_set_transform_function(op_Shrs, gen_Shrs);
1904 be_set_transform_function(op_Start, gen_Start);
1905 be_set_transform_function(op_Store, gen_Store);
1906 be_set_transform_function(op_Sub, gen_Sub);
1907 be_set_transform_function(op_SymConst, gen_SymConst);
1908 be_set_transform_function(op_Unknown, gen_Unknown);
1910 be_set_transform_function(op_sparc_Save, be_duplicate_node);
1913 /* hack to avoid unused fp proj at start barrier */
1914 static void assure_fp_keep(void)
1916 unsigned n_users = 0;
1917 const ir_edge_t *edge;
1918 ir_node *fp_proj = be_prolog_get_reg_value(abihelper, fp_reg);
1920 foreach_out_edge(fp_proj, edge) {
1921 ir_node *succ = get_edge_src_irn(edge);
1922 if (is_End(succ) || is_Anchor(succ))
1928 ir_node *block = get_nodes_block(fp_proj);
1929 ir_node *in[1] = { fp_proj };
1930 be_new_Keep(block, 1, in);
1935 * Transform a Firm graph into a SPARC graph.
1937 void sparc_transform_graph(sparc_code_gen_t *cg)
1939 ir_graph *irg = cg->irg;
1940 ir_entity *entity = get_irg_entity(irg);
1941 ir_type *frame_type;
1943 sparc_register_transformers();
1946 node_to_stack = pmap_create();
1953 abihelper = be_abihelper_prepare(irg);
1954 be_collect_stacknodes(abihelper);
1955 cconv = sparc_decide_calling_convention(get_entity_type(entity), false);
1956 create_stacklayout(irg);
1958 be_transform_graph(cg->irg, NULL);
1961 be_abihelper_finish(abihelper);
1962 sparc_free_calling_convention(cconv);
1964 frame_type = get_irg_frame_type(irg);
1965 if (get_type_state(frame_type) == layout_undefined)
1966 default_layout_compound_type(frame_type);
1968 pmap_destroy(node_to_stack);
1969 node_to_stack = NULL;
1971 be_add_missing_keeps(irg);
1973 /* do code placement, to optimize the position of constants */
1974 place_code(cg->irg);
1977 void sparc_init_transform(void)
1979 FIRM_DBG_REGISTER(dbg, "firm.be.sparc.transform");