2 * Copyright (C) 1995-2007 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 The codegenerator (transform FIRM into ppc FIRM)
23 * @author Moritz Kroll, Jens Mueller
31 #include "irgraph_t.h"
35 #include "iredges_t.h"
43 #include "../benode_t.h"
44 #include "bearch_ppc32_t.h"
46 #include "ppc32_nodes_attr.h"
47 #include "../arch/archop.h" /* we need this for Min and Max nodes */
48 #include "ppc32_transform.h"
49 #include "ppc32_new_nodes.h"
50 #include "ppc32_map_regs.h"
52 #include "gen_ppc32_regalloc_if.h"
54 extern ir_op *get_op_Mulh(void);
56 int is_direct_entity(ir_entity *ent);
58 ir_mode* ppc32_mode_Cond = NULL;
61 * Returns the proj of a given node with the given proj number
63 static INLINE ir_node *get_succ_Proj(ir_node *node, long proj)
65 const ir_edge_t *edge;
66 foreach_out_edge(node, edge)
68 if (is_Proj(edge->src) && get_Proj_proj(edge->src) == proj)
75 * Returns a singleton condition mode
77 ir_mode *get_ppc32_mode_Cond(void) {
79 return ppc32_mode_Cond;
81 ppc32_mode_Cond = new_ir_mode("mode_Cond", irms_character, 4, 0, irma_none, 0);
82 return ppc32_mode_Cond;
87 * Calculates the modecode with size, sort and signed attributes
89 modecode get_nice_modecode(ir_mode *irmode)
91 modecode mode = irm_max;
92 int sign = mode_is_signed(irmode);
93 int bits = get_mode_size_bits(irmode);
94 if(mode_is_int(irmode))
99 mode = sign ? irm_Bs : irm_Bu;
102 mode = sign ? irm_Hs : irm_Hu;
105 mode = sign ? irm_Is : irm_Iu;
109 else if(mode_is_float(irmode))
121 else if(mode_is_reference(irmode))
134 * Returns true, if the given node is a Const node and it's value fits into
135 * a signed 16-bit variable
137 int is_16bit_signed_const(ir_node *node)
141 if(!is_ppc32_Const(node)) return 0;
143 tv_const = get_ppc32_constant_tarval(node);
145 switch(get_nice_modecode(get_irn_mode(node)))
154 unsigned char val2 = get_tarval_sub_bits(tv_const, 2);
155 unsigned char val3 = get_tarval_sub_bits(tv_const, 3);
163 unsigned char val1 = get_tarval_sub_bits(tv_const, 1);
171 unsigned char val2 = get_tarval_sub_bits(tv_const, 2);
172 unsigned char val3 = get_tarval_sub_bits(tv_const, 3);
173 if(val2==0 && val3==0)
175 unsigned char val1 = get_tarval_sub_bits(tv_const, 1);
180 if(!(val2==0xff && val3==0xff))
182 unsigned char val1 = get_tarval_sub_bits(tv_const, 1);
190 fprintf(stderr, "is_16bit_signed_const(): Mode not supported: %s\n", get_mode_name(get_irn_mode(node)));
197 * Returns true, if the given node is a Const node and it's value fits into
198 * a unsigned 16-bit variable
200 int is_16bit_unsigned_const(ir_node *node)
204 if(!is_ppc32_Const(node)) return 0;
206 tv_const = get_ppc32_constant_tarval(node);
207 switch(get_nice_modecode(get_irn_mode(node)))
218 unsigned char val2 = get_tarval_sub_bits(tv_const, 2);
219 unsigned char val3 = get_tarval_sub_bits(tv_const, 3);
225 fprintf(stderr, "is_16bit_unsigned_const(): Mode not supported: %s\n", get_mode_name(get_irn_mode(node)));
232 /****************************************************************************************************
234 * | | | | / _| | | (_)
235 * _ __ ___ __| | ___ | |_ _ __ __ _ _ __ ___| |_ ___ _ __ _ __ ___ __ _| |_ _ ___ _ __
236 * | '_ \ / _ \ / _` |/ _ \ | __| '__/ _` | '_ \/ __| _/ _ \| '__| '_ ` _ \ / _` | __| |/ _ \| '_ \
237 * | | | | (_) | (_| | __/ | |_| | | (_| | | | \__ \ || (_) | | | | | | | | (_| | |_| | (_) | | | |
238 * |_| |_|\___/ \__,_|\___| \__|_| \__,_|_| |_|___/_| \___/|_| |_| |_| |_|\__,_|\__|_|\___/|_| |_|
240 ****************************************************************************************************/
243 * Creates an ppc Add.
245 * @param env The transformation environment
246 * @return the created ppc Add node
248 static ir_node *gen_Add(ppc32_transform_env_t *env) {
249 ir_node *op1 = get_Add_left(env->irn);
250 ir_node *op2 = get_Add_right(env->irn);
252 switch(get_nice_modecode(env->mode)){
254 return new_rd_ppc32_fAdd(env->dbg, env->irg, env->block, op1, op2, env->mode);
256 return new_rd_ppc32_fAdds(env->dbg, env->irg, env->block, op1, op2, env->mode);
264 if(is_16bit_signed_const(op1))
266 ir_node *addnode = new_rd_ppc32_Addi(env->dbg, env->irg, env->block, op2, env->mode);
267 set_ppc32_constant_tarval(addnode, get_ppc32_constant_tarval(op1));
268 set_ppc32_offset_mode(addnode, ppc32_ao_None);
271 if(is_16bit_signed_const(op2))
273 ir_node *addnode = new_rd_ppc32_Addi(env->dbg, env->irg, env->block, op1, env->mode);
274 set_ppc32_constant_tarval(addnode, get_ppc32_constant_tarval(op2));
275 set_ppc32_offset_mode(addnode, ppc32_ao_None);
279 return new_rd_ppc32_Add(env->dbg, env->irg, env->block, op1, op2, env->mode);
282 fprintf(stderr, "Mode for Add not supported: %s\n", get_mode_name(env->mode));
289 * Creates an ppc Mul.
291 * @param env The transformation environment
292 * @return the created ppc Mul node
294 static ir_node *gen_Mul(ppc32_transform_env_t *env) {
295 ir_node *op1 = get_Mul_left(env->irn);
296 ir_node *op2 = get_Mul_right(env->irn);
298 switch(get_nice_modecode(env->mode)){
300 return new_rd_ppc32_fMul(env->dbg, env->irg, env->block, op1, op2, env->mode);
302 return new_rd_ppc32_fMuls(env->dbg, env->irg, env->block, op1, op2, env->mode);
309 return new_rd_ppc32_Mullw(env->dbg, env->irg, env->block, op1, op2, env->mode);
313 fprintf(stderr, "Mode for Mul not supported: %s\n", get_mode_name(env->mode));
320 * Creates an ppc Mulh.
322 * @param env The transformation environment
323 * @return the created ppc Mulh node
325 static ir_node *gen_Mulh(ppc32_transform_env_t *env) {
326 ir_node *op1 = get_irn_n(env->irn, 0);
327 ir_node *op2 = get_irn_n(env->irn, 1);
329 switch(get_nice_modecode(env->mode)){
333 return new_rd_ppc32_Mulhw(env->dbg, env->irg, env->block, op1, op2, env->mode);
338 return new_rd_ppc32_Mulhwu(env->dbg, env->irg, env->block, op1, op2, env->mode);
344 fprintf(stderr, "Mode for Mulh not supported: %s\n", get_mode_name(env->mode));
351 * Creates an ppc And.
353 * @param env The transformation environment
354 * @return the created ppc And node
356 static ir_node *gen_And(ppc32_transform_env_t *env) {
357 ir_node *op1 = get_And_left(env->irn);
358 ir_node *op2 = get_And_right(env->irn);
360 return new_rd_ppc32_And(env->dbg, env->irg, env->block, op1, op2, env->mode);
366 * @param env The transformation environment
367 * @return the created ppc Or node
369 static ir_node *gen_Or(ppc32_transform_env_t *env) {
370 ir_node *op1 = get_Or_left(env->irn);
371 ir_node *op2 = get_Or_right(env->irn);
373 return new_rd_ppc32_Or(env->dbg, env->irg, env->block, op1, op2, env->mode);
377 * Creates an ppc Xor.
379 * @param env The transformation environment
380 * @return the created ppc Xor node
382 static ir_node *gen_Eor(ppc32_transform_env_t *env) {
383 ir_node *op1 = get_Eor_left(env->irn);
384 ir_node *op2 = get_Eor_right(env->irn);
386 return new_rd_ppc32_Xor(env->dbg, env->irg, env->block, op1, op2, env->mode);
390 * Creates an ppc Sub.
392 * @param env The transformation environment
393 * @return the created ppc Sub node
395 static ir_node *gen_Sub(ppc32_transform_env_t *env) {
396 ir_node *op1 = get_Sub_left(env->irn);
397 ir_node *op2 = get_Sub_right(env->irn);
399 switch(get_nice_modecode(env->mode)){
401 return new_rd_ppc32_fSub(env->dbg, env->irg, env->block, op1, op2, env->mode);
403 return new_rd_ppc32_fSubs(env->dbg, env->irg, env->block, op1, op2, env->mode);
411 return new_rd_ppc32_Sub(env->dbg, env->irg, env->block, op1, op2, env->mode);
414 fprintf(stderr, "Mode for Sub not supported: %s\n", get_mode_name(env->mode));
421 * Creates an ppc floating Div.
423 * @param env The transformation environment
424 * @return the created ppc fDiv node
426 static ir_node *gen_Quot(ppc32_transform_env_t *env) {
427 ir_node *op1 = get_Quot_left(env->irn);
428 ir_node *op2 = get_Quot_right(env->irn);
430 switch(get_nice_modecode(env->mode)){
432 return new_rd_ppc32_fDiv(env->dbg, env->irg, env->block, op1, op2, env->mode);
434 return new_rd_ppc32_fDivs(env->dbg, env->irg, env->block, op1, op2, env->mode);
437 fprintf(stderr, "Mode for Quot not supported: %s\n", get_mode_name(env->mode));
444 * Creates an ppc integer Div.
446 * @param env The transformation environment
447 * @return the created ppc Div node
449 static ir_node *gen_Div(ppc32_transform_env_t *env) {
450 ir_node *op1 = get_Div_left(env->irn);
451 ir_node *op2 = get_Div_right(env->irn);
453 switch(get_nice_modecode(get_irn_mode(op1))){
457 return new_rd_ppc32_Divw(env->dbg, env->irg, env->block, op1, op2, mode_T);
462 return new_rd_ppc32_Divwu(env->dbg, env->irg, env->block, op1, op2, mode_T);
465 fprintf(stderr, "Mode for Div not supported: %s\n", get_mode_name(get_irn_mode(op1)));
472 * Creates an ppc integer Div and Mod.
474 * @param env The transformation environment
475 * @return the created ppc Div node
477 static ir_node *gen_DivMod(ppc32_transform_env_t *env) {
478 ir_node *op1 = get_DivMod_left(env->irn);
479 ir_node *op2 = get_DivMod_right(env->irn);
480 ir_node *proj_div = NULL, *proj_mod = NULL;
482 const ir_edge_t *edge;
485 foreach_out_edge(env->irn, edge)
487 if (is_Proj(edge->src))
489 switch(get_Proj_proj(edge->src)){
490 case pn_DivMod_res_div:
491 proj_div = edge->src;
493 case pn_DivMod_res_mod:
494 proj_mod = edge->src;
502 assert(proj_div!=NULL || proj_mod!=NULL);
504 res_mode = get_irn_mode(proj_div);
506 switch(get_nice_modecode(res_mode))
511 div_result = new_rd_ppc32_Divw(env->dbg, env->irg, env->block, op1, op2, mode_T);
517 div_result = new_rd_ppc32_Divwu(env->dbg, env->irg, env->block, op1, op2, mode_T);
521 fprintf(stderr, "Mode for DivMod not supported: %s\n", get_mode_name(res_mode));
527 if (proj_div == NULL)
528 proj_div = new_rd_Proj(env->dbg, env->irg, env->block, div_result, get_irn_mode(proj_mod), pn_DivMod_res_div);
534 mul_result = new_rd_ppc32_Mullw(env->dbg, env->irg, env->block, proj_div, op2, res_mode);
535 mod_result = new_rd_ppc32_Sub(env->dbg, env->irg, env->block, op1, mul_result, res_mode);
537 exchange(proj_mod, mod_result);
544 * Creates an ppc integer Mod.
546 * @param env The transformation environment
547 * @return the created ppc Mod result node
549 static ir_node *gen_Mod(ppc32_transform_env_t *env) {
550 ir_node *op1 = get_Mod_left(env->irn);
551 ir_node *op2 = get_Mod_right(env->irn);
552 ir_node *proj_div = NULL, *proj_mod = NULL;
558 proj_mod = get_succ_Proj(env->irn, pn_Mod_res);
560 assert(proj_mod != NULL);
561 res_mode = get_irn_mode(proj_mod);
563 switch(get_nice_modecode(res_mode))
568 div_result = new_rd_ppc32_Divw(env->dbg, env->irg, env->block, op1, op2, mode_T);
574 div_result = new_rd_ppc32_Divwu(env->dbg, env->irg, env->block, op1, op2, mode_T);
578 fprintf(stderr, "Mode for Mod not supported: %s\n", get_mode_name(res_mode));
584 proj_div = new_rd_Proj(env->dbg, env->irg, env->block, div_result, res_mode, pn_DivMod_res_div);
586 mul_result = new_rd_ppc32_Mullw(env->dbg, env->irg, env->block, proj_div, op2, res_mode);
587 mod_result = new_rd_ppc32_Sub(env->dbg, env->irg, env->block, op1, mul_result, res_mode);
589 exchange(proj_mod, mod_result);
595 * Creates an ppc Shl.
597 * @param env The transformation environment
598 * @return the created ppc Shl node
600 static ir_node *gen_Shl(ppc32_transform_env_t *env) {
601 ir_node *op1 = get_Shl_left(env->irn);
602 ir_node *op2 = get_Shl_right(env->irn);
604 if(is_ppc32_Const(op2))
606 ir_node *shift = new_rd_ppc32_Rlwinm(env->dbg, env->irg, env->block, op1, env->mode);
607 tarval *tv_const = get_ppc32_constant_tarval(op2);
608 int sh = get_tarval_long(tv_const);
609 assert(0<=sh && sh<=31);
610 set_ppc32_rlwimi_const(shift, sh, 0, 31-sh);
613 return new_rd_ppc32_Slw(env->dbg, env->irg, env->block, op1, op2, env->mode);
617 * Creates an ppc Srw.
619 * @param env The transformation environment
620 * @return the created ppc Shr node
622 static ir_node *gen_Shr(ppc32_transform_env_t *env) {
623 ir_node *op1 = get_Shr_left(env->irn);
624 ir_node *op2 = get_Shr_right(env->irn);
626 if(is_ppc32_Const(op2))
628 ir_node *shift = new_rd_ppc32_Rlwinm(env->dbg, env->irg, env->block, op1, env->mode);
629 tarval *tv_const = get_ppc32_constant_tarval(op2);
630 int sh = get_tarval_long(tv_const);
631 assert(0<=sh && sh<=31);
632 set_ppc32_rlwimi_const(shift, 32-sh, sh, 31);
635 return new_rd_ppc32_Srw(env->dbg, env->irg, env->block, op1, op2, env->mode);
639 * Creates an ppc Sraw.
641 * @param env The transformation environment
642 * @return the created ppc Sraw node
644 static ir_node *gen_Shrs(ppc32_transform_env_t *env) {
645 ir_node *op1 = get_Shrs_left(env->irn);
646 ir_node *op2 = get_Shrs_right(env->irn);
648 if(is_ppc32_Const(op2))
650 ir_node *shift = new_rd_ppc32_Srawi(env->dbg, env->irg, env->block, op1, env->mode);
651 tarval *tv_const = get_ppc32_constant_tarval(op2);
652 int sh = get_tarval_long(tv_const);
653 assert(0<=sh && sh<=31);
654 set_ppc32_constant_tarval(shift, tv_const);
655 set_ppc32_offset_mode(shift, ppc32_ao_None);
658 return new_rd_ppc32_Sraw(env->dbg, env->irg, env->block, op1, op2, env->mode);
662 * Creates an ppc RotL.
664 * @param env The transformation environment
665 * @return the created ppc RotL node
667 static ir_node *gen_Rot(ppc32_transform_env_t *env) {
668 ir_node *op1 = get_Rot_left(env->irn);
669 ir_node *op2 = get_Rot_right(env->irn);
671 if(is_ppc32_Const(op2))
673 ir_node *rot = new_rd_ppc32_Rlwinm(env->dbg, env->irg, env->block, op1, env->mode);
674 tarval *tv_const = get_ppc32_constant_tarval(op2);
675 int sh = get_tarval_long(tv_const);
676 assert(0<=sh && sh<=31);
677 set_ppc32_rlwimi_const(rot, sh, 0, 31);
680 return new_rd_ppc32_Rlwnm(env->dbg, env->irg, env->block, op1, op2, env->mode);
684 * Creates an ppc Cmp.
686 * @param env The transformation environment
687 * @return the created ppc Cmp node
689 static ir_node *gen_Cmp(ppc32_transform_env_t *env) {
690 ir_node *op1 = get_Cmp_left(env->irn);
691 ir_node *op2 = get_Cmp_right(env->irn);
693 const ir_edge_t *edge;
694 foreach_out_edge(env->irn, edge)
696 if (is_Proj(edge->src))
697 set_irn_mode(edge->src, get_ppc32_mode_Cond());
700 if(mode_is_float(env->mode))
701 return new_rd_ppc32_fCmpu(env->dbg, env->irg, env->block, op1, op2, env->mode);
702 else if(mode_is_signed(env->mode))
704 if(is_16bit_signed_const(op2))
706 ir_node *cmp = new_rd_ppc32_Cmpi(env->dbg, env->irg, env->block, op1, env->mode);
707 tarval *tv_const = get_ppc32_constant_tarval(op2);
708 set_ppc32_constant_tarval(cmp, tv_const);
709 set_ppc32_offset_mode(cmp, ppc32_ao_None);
714 return new_rd_ppc32_Cmp(env->dbg, env->irg, env->block, op1, op2, env->mode);
719 if(is_16bit_unsigned_const(op2))
721 ir_node *cmp = new_rd_ppc32_Cmpli(env->dbg, env->irg, env->block, op1, env->mode);
722 tarval *tv_const = get_ppc32_constant_tarval(op2);
723 set_ppc32_constant_tarval(cmp, tv_const);
724 set_ppc32_offset_mode(cmp, ppc32_ao_None);
730 return new_rd_ppc32_Cmpl(env->dbg, env->irg, env->block, op1, op2, env->mode);
736 * Transforms a Minus node.
738 * @param env The transformation environment
739 * @return the created ppc Minus node
741 static ir_node *gen_Minus(ppc32_transform_env_t *env) {
742 ir_node *op = get_Minus_op(env->irn);
744 switch(get_nice_modecode(env->mode)){
747 return new_rd_ppc32_fNeg(env->dbg, env->irg, env->block, op, env->mode);
755 return new_rd_ppc32_Neg(env->dbg, env->irg, env->block, op, env->mode);
758 fprintf(stderr, "Mode for Neg not supported: %s\n", get_mode_name(env->mode));
765 * Transforms a Not node.
767 * @param env The transformation environment
768 * @return the created ppc Not node
770 static ir_node *gen_Not(ppc32_transform_env_t *env) {
771 return new_rd_ppc32_Not(env->dbg, env->irg, env->block, get_Not_op(env->irn), env->mode);
775 static ir_node *own_gen_Andi_dot_lo16(ppc32_transform_env_t *env, ir_node *op, int mask)
777 ir_node *andi = new_rd_ppc32_Andi_dot(env->dbg, env->irg, env->block, op, mode_T);
779 set_ppc32_offset_mode(andi, ppc32_ao_Lo16);
780 set_ppc32_constant_tarval(andi, new_tarval_from_long(mask, mode_Is));
781 in[0] = new_rd_Proj(env->dbg, env->irg, env->block, andi, env->mode,1);
782 be_new_Keep(&ppc32_reg_classes[CLASS_ppc32_condition], env->irg, env->block, 1, in);
783 return new_rd_Proj(env->dbg, env->irg, env->block, andi, env->mode,0);
787 * Transforms a Conv node.
789 * @param env The transformation environment
790 * @return the created ppc Conv node
792 static ir_node *gen_Conv(ppc32_transform_env_t *env) {
793 ir_node *op = get_Conv_op(env->irn);
794 modecode from_mode=get_nice_modecode(get_irn_mode(op));
795 modecode to_mode=get_nice_modecode(env->mode);
797 #define SKIP return op
799 if(from_mode == to_mode) SKIP;
815 return new_rd_ppc32_fRsp(env->dbg, env->irg, env->block, op, env->mode);
826 return new_rd_ppc32_Extsh(env->dbg, env->irg, env->block, op, env->mode);
828 return own_gen_Andi_dot_lo16(env, op, 0xffff);
830 return new_rd_ppc32_Extsb(env->dbg, env->irg, env->block, op, env->mode);
832 return own_gen_Andi_dot_lo16(env, op, 0xff);
846 if(from_mode==irm_Hu)
848 return own_gen_Andi_dot_lo16(env, op, 0xffff);
852 return new_rd_ppc32_Extsb(env->dbg, env->irg, env->block, op, env->mode);
854 return own_gen_Andi_dot_lo16(env, op, 0xff);
856 return new_rd_ppc32_Extsh(env->dbg, env->irg, env->block, op, env->mode);
868 if(from_mode==irm_Bs)
870 return own_gen_Andi_dot_lo16(env, op, 0xff);
875 return new_rd_ppc32_Extsb(env->dbg, env->irg, env->block, op, env->mode);
881 if(to_mode==irm_Is || to_mode==irm_Iu) SKIP;
887 fprintf(stderr, "Mode for Conv not supported: %s -> %s\n",
888 get_mode_name(get_irn_mode(get_irn_n(env->irn,0))),get_mode_name(env->mode));
896 * Transforms an Abs node.
898 * @param env The transformation environment
899 * @return the ppc node generating the absolute value
901 static ir_node *gen_Abs(ppc32_transform_env_t *env) {
902 ir_node *op = get_Abs_op(env->irn);
906 switch(get_nice_modecode(env->mode))
910 return new_rd_ppc32_fAbs(env->dbg, env->irg, env->block, op, env->mode);
916 n1 = new_rd_ppc32_Srawi(env->dbg, env->irg, env->block, op, env->mode);
917 set_ppc32_constant_tarval(n1, new_tarval_from_long(shift, mode_Is));
918 set_ppc32_offset_mode(n1, ppc32_ao_None);
919 n2 = new_rd_ppc32_Add(env->dbg, env->irg, env->block, op, n1, env->mode);
920 return new_rd_ppc32_Xor(env->dbg, env->irg, env->block, n2, n1, env->mode);
924 fprintf(stderr, "Mode for Abs not supported: %s\n", get_mode_name(env->mode));
930 * Transforms an Cond node.
932 * @param env The transformation environment
933 * @return a ppc branch node
935 static ir_node *gen_Cond(ppc32_transform_env_t *env) {
936 ir_node *selector = get_Cond_selector(env->irn);
937 ir_mode *projmode = get_irn_mode(selector);
938 if(is_Proj(selector) && projmode==get_ppc32_mode_Cond())
940 int projnum = get_Proj_proj(selector);
941 ir_node *branch = new_rd_ppc32_Branch(env->dbg, env->irg, env->block, selector, env->mode);
942 set_ppc32_proj_nr(branch, projnum);
947 ir_node *unknown_gpr = new_rd_ppc32_Unknown(env->dbg, env->irg, env->block, mode_Is);
948 ir_node *unknown_cond = new_rd_ppc32_cUnknown(env->dbg, env->irg, env->block, get_ppc32_mode_Cond());
950 ir_node *switch_node = new_rd_ppc32_Switch(env->dbg, env->irg, env->block, selector,
951 unknown_gpr, unknown_cond, env->mode);
952 set_ppc32_proj_nr(switch_node, get_Cond_defaultProj(env->irn));
959 * Transforms an Unknown node.
961 * @param env The transformation environment
962 * @return a ppc Unknown node
964 static ir_node *gen_Unknown(ppc32_transform_env_t *env) {
965 if(mode_is_float(env->mode))
966 return new_rd_ppc32_fUnknown(env->dbg, env->irg, env->block, env->mode);
967 else if (mode_is_int(env->mode))
968 return new_rd_ppc32_Unknown(env->dbg, env->irg, env->block, env->mode);
971 fprintf(stderr, "Mode %s for unknown value not supported.\n", get_mode_name(env->mode));
977 static ir_node *ldst_insert_const(ir_node *ptr, tarval **ptv, ident **pid, ppc32_transform_env_t *env) {
978 tarval *tv_const = NULL;
979 ident *id_symconst = NULL;
981 if(is_ppc32_Const(ptr))
983 tv_const = get_ppc32_constant_tarval(ptr);
984 ptr = new_rd_ppc32_Addis_zero(env->dbg, env->irg, env->block, mode_P, ppc32_ao_Ha16, tv_const, NULL);
986 else if(is_ppc32_SymConst(ptr))
988 ir_entity *ent = get_ppc32_frame_entity(ptr);
989 if(is_direct_entity(ent))
991 id_symconst = get_entity_ident(ent);
992 ptr = new_rd_ppc32_Addis_zero(env->dbg, env->irg, env->block, mode_P, ppc32_ao_Ha16, NULL, id_symconst);
1001 * Transforms a Load.
1003 * @param env The transformation environment
1004 * @return the created ppc Load node
1006 static ir_node *gen_Load(ppc32_transform_env_t *env) {
1007 ir_node *node = env->irn;
1008 ir_node *loadptr = get_Load_ptr(node);
1010 ir_mode *mode = get_Load_mode(node);
1011 tarval *tv_const = NULL;
1012 ident *id_symconst = NULL;
1014 loadptr = ldst_insert_const(loadptr, &tv_const, &id_symconst, env);
1015 switch(get_nice_modecode(mode)){
1017 load = new_rd_ppc32_Lbz(env->dbg, env->irg, env->block, loadptr, get_Load_mem(node));
1022 ir_node *proj_load, *extsb_node;
1023 load = new_rd_ppc32_Lbz(env->dbg, env->irg, env->block, loadptr, get_Load_mem(node));
1024 proj_load = new_rd_Proj(env->dbg, env->irg, env->block, load, mode, pn_Load_res);
1025 extsb_node = new_rd_ppc32_Extsb(env->dbg, env->irg, env->block, proj_load, mode);
1026 exchange(get_succ_Proj(env->irn, pn_Load_res), extsb_node);
1032 load = new_rd_ppc32_Lhz(env->dbg, env->irg, env->block, loadptr, get_Load_mem(node));
1035 load =new_rd_ppc32_Lha(env->dbg, env->irg, env->block, loadptr, get_Load_mem(node));
1040 load = new_rd_ppc32_Lwz(env->dbg, env->irg, env->block, loadptr, get_Load_mem(node));
1044 load = new_rd_ppc32_Lfd(env->dbg, env->irg, env->block, loadptr, get_Load_mem(node));
1047 load = new_rd_ppc32_Lfs(env->dbg, env->irg, env->block, loadptr, get_Load_mem(node));
1051 fprintf(stderr, "Mode for Load not supported: %s\n", get_mode_name(env->mode));
1058 set_ppc32_offset_mode(load, ppc32_ao_Lo16);
1059 set_ppc32_constant_tarval(load, tv_const);
1061 else if(id_symconst)
1063 set_ppc32_offset_mode(load, ppc32_ao_Lo16);
1064 set_ppc32_symconst_ident(load, id_symconst);
1072 * Transforms a Store.
1074 * @param env The transformation environment
1075 * @return the created ppc Store node
1077 static ir_node *gen_Store(ppc32_transform_env_t *env) {
1078 ir_node *node = env->irn;
1079 ir_node *storeptr = get_Store_ptr(node);
1080 ir_node *valuenode = get_Store_value(node);
1081 ir_mode *mode = get_irn_mode(valuenode);
1083 tarval *tv_const = NULL;
1084 ident *id_symconst = NULL;
1086 storeptr = ldst_insert_const(storeptr, &tv_const, &id_symconst, env);
1088 switch(get_nice_modecode(mode)){
1091 store = new_rd_ppc32_Stb(env->dbg, env->irg, env->block, storeptr, get_Store_value(node), get_Store_mem(node));
1096 store = new_rd_ppc32_Sth(env->dbg, env->irg, env->block, storeptr, get_Store_value(node), get_Store_mem(node));
1101 store = new_rd_ppc32_Stw(env->dbg, env->irg, env->block, storeptr, get_Store_value(node), get_Store_mem(node));
1105 store = new_rd_ppc32_Stfd(env->dbg, env->irg, env->block, storeptr, get_Store_value(node), get_Store_mem(node));
1108 store = new_rd_ppc32_Stfs(env->dbg, env->irg, env->block, storeptr, get_Store_value(node), get_Store_mem(node));
1112 fprintf(stderr, "Mode for Store not supported: %s\n", get_mode_name(env->mode));
1118 set_ppc32_offset_mode(store, ppc32_ao_Lo16);
1119 set_ppc32_constant_tarval(store, tv_const);
1121 else if(id_symconst)
1123 set_ppc32_offset_mode(store, ppc32_ao_Lo16);
1124 set_ppc32_symconst_ident(store, id_symconst);
1130 * Transforms a CopyB.
1132 * @param env The transformation environment
1133 * @return the created ppc CopyB node
1135 static ir_node *gen_CopyB(ppc32_transform_env_t *env) {
1136 ir_node *mem = get_CopyB_mem(env->irn);
1137 ir_node *src = get_CopyB_src(env->irn);
1138 ir_node *dest = get_CopyB_dst(env->irn);
1139 ir_type *type = get_CopyB_type(env->irn);
1140 int size = get_type_size_bytes(type);
1143 ir_node *load, *store = NULL;
1148 tarval *offset0 = new_tarval_from_long(0, mode_Is);
1149 tarval *offset4 = new_tarval_from_long(4, mode_Is);
1151 load = new_rd_ppc32_Lwz(env->dbg, env->irg, env->block, src, mem);
1152 set_ppc32_constant_tarval(load, offset0);
1153 set_ppc32_offset_mode(load, ppc32_ao_None);
1154 mem = new_rd_Proj(env->dbg, env->irg, env->block, load, mode_M, pn_Load_M);
1155 res = new_rd_Proj(env->dbg, env->irg, env->block, load, mode_Is, pn_Load_res);
1157 store = new_rd_ppc32_Stw(env->dbg, env->irg, env->block, dest, res, mem);
1158 set_ppc32_constant_tarval(store, offset0);
1159 set_ppc32_offset_mode(store, ppc32_ao_None);
1160 mem = new_rd_Proj(env->dbg, env->irg, env->block, store, mode_M, pn_Store_M);
1164 load = new_rd_ppc32_Lwz(env->dbg, env->irg, env->block, src, mem);
1165 set_ppc32_constant_tarval(load, offset4);
1166 set_ppc32_offset_mode(load, ppc32_ao_None);
1167 mem = new_rd_Proj(env->dbg, env->irg, env->block, load, mode_M, pn_Load_M);
1168 res = new_rd_Proj(env->dbg, env->irg, env->block, load, mode_Is, pn_Load_res);
1170 store = new_rd_ppc32_Stw(env->dbg, env->irg, env->block, dest, res, mem);
1171 set_ppc32_constant_tarval(store, offset4);
1172 set_ppc32_offset_mode(store, ppc32_ao_None);
1173 mem = new_rd_Proj(env->dbg, env->irg, env->block, store, mode_M, pn_Store_M);
1179 ir_node *ornode, *mtctrnode;
1181 assert(size/4-1<=0xffff);
1184 ornode = new_rd_ppc32_Addi_zero(env->dbg, env->irg, env->block, mode_Is);
1185 set_ppc32_offset_mode(ornode, ppc32_ao_None);
1189 ir_node *zeroreg = new_rd_ppc32_Addi_zero(env->dbg, env->irg, env->block, mode_Is);
1190 set_ppc32_offset_mode(zeroreg, ppc32_ao_None);
1191 set_ppc32_constant_tarval(zeroreg, new_tarval_from_long(0, mode_Is));
1192 ornode = new_rd_ppc32_Ori(env->dbg, env->irg, env->block, zeroreg, mode_Is);
1193 set_ppc32_offset_mode(ornode, ppc32_ao_Lo16);
1196 set_ppc32_constant_tarval(ornode, new_tarval_from_long(size/4-1, mode_Is));
1197 mtctrnode = new_rd_ppc32_Mtctr(env->dbg, env->irg, env->block, ornode, mode_Is);
1198 store = new_rd_ppc32_LoopCopy(env->dbg, env->irg, env->block, src, dest, mtctrnode, mem, mode_T);
1200 in[0] = new_rd_Proj(env->dbg, env->irg, env->block, store, mode_Is, 1); // src
1201 in[1] = new_rd_Proj(env->dbg, env->irg, env->block, store, mode_Is, 2); // dest
1202 in[2] = new_rd_Proj(env->dbg, env->irg, env->block, store, mode_Is, 4); // temp
1203 be_new_Keep(&ppc32_reg_classes[CLASS_ppc32_gp], env->irg, env->block, 3, in);
1204 in[0] = new_rd_Proj(env->dbg, env->irg, env->block, store, mode_Is, 3); // ctr
1205 be_new_Keep(&ppc32_reg_classes[CLASS_ppc32_count], env->irg, env->block, 1, in);
1207 mem = new_rd_Proj(env->dbg, env->irg, env->block, store, mode_M, 0);
1216 tarval* offset_tarval = new_tarval_from_long(offset, mode_Is);
1217 load = new_rd_ppc32_Lhz(env->dbg, env->irg, env->block, src, mem);
1218 set_ppc32_constant_tarval(load, offset_tarval);
1219 set_ppc32_offset_mode(load, ppc32_ao_None);
1220 mem = new_rd_Proj(env->dbg, env->irg, env->block, load, mode_M, pn_Load_M);
1221 res = new_rd_Proj(env->dbg, env->irg, env->block, load, mode_Is, pn_Load_res);
1223 store = new_rd_ppc32_Sth(env->dbg, env->irg, env->block, dest, res, mem);
1224 set_ppc32_constant_tarval(store, offset_tarval);
1225 set_ppc32_offset_mode(store, ppc32_ao_None);
1226 mem = new_rd_Proj(env->dbg, env->irg, env->block, store, mode_M, pn_Store_M);
1234 tarval* offset_tarval = new_tarval_from_long(offset, mode_Is);
1235 load = new_rd_ppc32_Lbz(env->dbg, env->irg, env->block, src, mem);
1236 set_ppc32_constant_tarval(load, offset_tarval);
1237 set_ppc32_offset_mode(load, ppc32_ao_None);
1238 mem = new_rd_Proj(env->dbg, env->irg, env->block, load, mode_M, pn_Load_M);
1239 res = new_rd_Proj(env->dbg, env->irg, env->block, load, mode_Is, pn_Load_res);
1241 store = new_rd_ppc32_Stb(env->dbg, env->irg, env->block, dest, res, mem);
1242 set_ppc32_constant_tarval(store, offset_tarval);
1243 set_ppc32_offset_mode(store, ppc32_ao_None);
1244 // mem = new_rd_Proj(env->dbg, env->irg, env->block, store, mode_M, pn_Store_M);
1251 * Transforms a FrameAddr into a ppc Add.
1253 * @param env The transformation environment
1255 static ir_node *gen_be_FrameAddr(ppc32_transform_env_t *env) {
1256 ir_node *op = get_irn_n(env->irn, 0);
1257 ir_node *add = new_rd_ppc32_Addi(env->dbg, env->irg, env->block, op, mode_P);
1258 set_ppc32_frame_entity(add, be_get_frame_entity(env->irn));
1263 * Transforms a StackParam into a ppc Load
1265 * @param env The transformation environment
1267 static ir_node *gen_be_StackParam(ppc32_transform_env_t *env) {
1268 ir_node *load = new_rd_ppc32_Lwz(env->dbg, env->irg, env->block, get_irn_n(env->irn, 0), new_NoMem());
1269 ir_node *proj = new_rd_Proj(env->dbg, env->irg, env->block, load, env->mode, pn_Load_res);
1270 set_ppc32_frame_entity(load, be_get_frame_entity(env->irn));
1275 /*********************************************************
1278 * _ __ ___ __ _ _ _ __ __| |_ __ ___ _____ _ __
1279 * | '_ ` _ \ / _` | | '_ \ / _` | '__| \ \ / / _ \ '__|
1280 * | | | | | | (_| | | | | | | (_| | | | |\ V / __/ |
1281 * |_| |_| |_|\__,_|_|_| |_| \__,_|_| |_| \_/ \___|_|
1283 *********************************************************/
1286 * the BAD transformer.
1288 static ir_node *bad_transform(ppc32_transform_env_t *env) {
1289 ir_fprintf(stderr, "Not implemented: %+F\n", env->irn);
1295 * Enters all transform functions into the generic pointer
1297 void ppc32_register_transformers(void) {
1298 ir_op *op_Max, *op_Min, *op_Mulh;
1300 /* first clear the generic function pointer for all ops */
1301 clear_irp_opcodes_generic_func();
1303 #define FIRM_OP(a) op_##a->ops.generic = (op_func)gen_##a
1304 #define BAD(a) op_##a->ops.generic = (op_func)bad_transform
1335 /* TODO: implement these nodes */
1338 /* You probably don't need to handle the following nodes */
1368 FIRM_OP(be_FrameAddr);
1369 FIRM_OP(be_StackParam);
1370 op_Mulh = get_op_Mulh();
1373 op_Max = get_op_Max();
1376 op_Min = get_op_Min();
1381 typedef ir_node *(transform_func)(ppc32_transform_env_t *env);
1384 * Transforms the given firm node (and maybe some other related nodes)
1385 * into one or more assembler nodes.
1387 * @param node the firm node
1388 * @param env the debug module
1390 void ppc32_transform_node(ir_node *node, void *env) {
1391 ppc32_code_gen_t *cg = (ppc32_code_gen_t *)env;
1392 ir_op *op = get_irn_op(node);
1393 ir_node *asm_node = NULL;
1398 DBG((cg->mod, LEVEL_1, "check %+F ... ", node));
1400 if (op->ops.generic) {
1401 ppc32_transform_env_t tenv;
1402 transform_func *transform = (transform_func *)op->ops.generic;
1404 tenv.block = get_nodes_block(node);
1405 tenv.dbg = get_irn_dbg_info(node);
1406 tenv.irg = current_ir_graph;
1408 tenv.mode = get_irn_mode(node);
1409 DEBUG_ONLY(tenv.mod = cg->mod;)
1411 asm_node = (*transform)(&tenv);
1415 exchange(node, asm_node);
1416 DB((cg->mod, LEVEL_1, "created node %+F[%p]\n", asm_node, asm_node));
1419 DB((cg->mod, LEVEL_1, "ignored\n"));
1424 * Constant generating code
1432 /** Compares two (entity, tarval) combinations */
1433 static int cmp_tv_ent(const void *a, const void *b, size_t len) {
1434 const struct tv_ent *e1 = a;
1435 const struct tv_ent *e2 = b;
1437 return !(e1->tv == e2->tv);
1440 /** Generates a SymConst node for a known FP const */
1441 static ir_node *gen_fp_known_symconst(ppc32_transform_env_t *env, tarval *known_const) {
1442 static set *const_set = NULL;
1443 static ir_type *tp = NULL;
1445 struct tv_ent *entry;
1446 ir_node *cnst,*symcnst;
1448 ir_entity *ent = NULL;
1451 const_set = new_set(cmp_tv_ent, 10);
1453 tp = new_type_primitive(new_id_from_str("const_double_t"), env->mode);
1455 key.tv = known_const;
1458 entry = set_insert(const_set, &key, sizeof(key), HASH_PTR(key.tv));
1462 sprintf(buf, "const_%ld", get_irn_node_nr(env->irn));
1463 ent = new_entity(get_glob_type(), new_id_from_str(buf), tp);
1465 set_entity_ld_ident(ent, get_entity_ident(ent));
1466 set_entity_visibility(ent, visibility_local);
1467 set_entity_variability(ent, variability_constant);
1468 set_entity_allocation(ent, allocation_static);
1470 /* we create a new entity here: It's initialization must resist on the
1472 rem = current_ir_graph;
1473 current_ir_graph = get_const_code_irg();
1474 cnst = new_Const(env->mode, key.tv);
1475 current_ir_graph = rem;
1477 set_atomic_ent_value(ent, cnst);
1479 /* set the entry for hashmap */
1481 } // TODO: Wird nicht richtig in global type gesteckt, ppc32_gen_decls.c findet ihn nicht
1483 symcnst = new_rd_ppc32_SymConst(env->dbg, env->irg, env->block, env->mode);
1484 set_ppc32_frame_entity(symcnst, ent);
1488 static ir_node *gen_ppc32_SymConst(ppc32_transform_env_t *env);
1491 * Transforms a Const.
1493 * @param mod the debug module
1494 * @param block the block the new node should belong to
1495 * @param node the ir Const node
1496 * @param mode node mode
1497 * @return the created ppc Load immediate node
1499 static ir_node *gen_ppc32_Const(ppc32_transform_env_t *env) {
1500 tarval *tv_const = get_ppc32_constant_tarval(env->irn);
1503 switch(get_nice_modecode(env->mode)){
1506 unsigned char val1 = get_tarval_sub_bits(tv_const, 1);
1509 ir_node *zeroreg = new_rd_ppc32_Addi_zero(env->dbg, env->irg, env->block, mode_Is);
1510 set_ppc32_constant_tarval(zeroreg, new_tarval_from_long(0, mode_Is));
1511 set_ppc32_offset_mode(zeroreg, ppc32_ao_None);
1512 node = new_rd_ppc32_Ori(env->dbg, env->irg, env->block, zeroreg, mode_Is);
1513 set_ppc32_offset_mode(node, ppc32_ao_Lo16);
1520 node = new_rd_ppc32_Addi_zero(env->dbg, env->irg, env->block, env->mode);
1521 set_ppc32_offset_mode(node, ppc32_ao_None);
1527 unsigned char val2 = get_tarval_sub_bits(tv_const,2);
1528 unsigned char val3 = get_tarval_sub_bits(tv_const,3);
1531 unsigned char val1 = get_tarval_sub_bits(tv_const, 1);
1534 ir_node *zeroreg = new_rd_ppc32_Addi_zero(env->dbg, env->irg, env->block, mode_Is);
1535 set_ppc32_constant_tarval(zeroreg, new_tarval_from_long(0, mode_Is));
1536 set_ppc32_offset_mode(zeroreg, ppc32_ao_None);
1537 node = new_rd_ppc32_Ori(env->dbg, env->irg, env->block, zeroreg, mode_Is);
1538 set_ppc32_offset_mode(node, ppc32_ao_Lo16);
1542 node = new_rd_ppc32_Addi_zero(env->dbg, env->irg, env->block, env->mode);
1543 set_ppc32_offset_mode(node, ppc32_ao_None);
1548 unsigned char val0 = get_tarval_sub_bits(tv_const,0);
1549 unsigned char val1 = get_tarval_sub_bits(tv_const,1);
1550 node = new_rd_ppc32_Addis_zero(env->dbg, env->irg, env->block, env->mode, ppc32_ao_Hi16, tv_const, NULL);
1553 set_ppc32_constant_tarval(node, tv_const);
1554 node = new_rd_ppc32_Ori(env->dbg, env->irg, env->block, node, env->mode);
1555 set_ppc32_offset_mode(node, ppc32_ao_Lo16);
1562 fprintf(stderr, "Mode for Const not supported: %s\n", get_mode_name(env->mode));
1566 set_ppc32_constant_tarval(node, tv_const);
1571 * Transforms a fConst.
1573 * @param mod the debug module
1574 * @param block the block the new node should belong to
1575 * @param node the ir Const node
1576 * @param mode node mode
1577 * @return the created ppc float Load node
1579 static ir_node *gen_ppc32_fConst(ppc32_transform_env_t *env) {
1580 tarval *tv_const = get_ppc32_constant_tarval(env->irn);
1582 switch(get_nice_modecode(env->mode)){
1586 ir_node *addr, *load;
1587 ir_mode *mode = env->mode;
1589 env->irn = gen_fp_known_symconst(env, tv_const);
1591 ent = get_ppc32_frame_entity(env->irn);
1592 if(is_direct_entity(ent))
1594 ident *id_symconst = get_entity_ident(ent);
1595 ir_node *node_addis = new_rd_ppc32_Addis_zero(env->dbg, env->irg, env->block, env->mode, ppc32_ao_Ha16, NULL, id_symconst);
1598 load = new_rd_ppc32_Lfd(env->dbg, env->irg, env->block, node_addis, new_NoMem());
1600 load = new_rd_ppc32_Lfs(env->dbg, env->irg, env->block, node_addis, new_NoMem());
1602 set_ppc32_symconst_ident(load, id_symconst);
1603 set_ppc32_offset_mode(load, ppc32_ao_Lo16);
1607 addr = gen_ppc32_SymConst (env);
1609 load = new_rd_ppc32_Lfd(env->dbg, env->irg, env->block, addr, new_NoMem());
1611 load = new_rd_ppc32_Lfs(env->dbg, env->irg, env->block, addr, new_NoMem());
1613 return new_rd_Proj(env->dbg, env->irg, env->block, load, mode, pn_Load_res);
1617 fprintf(stderr, "Mode for fConst not supported: %s\n", get_mode_name(env->mode));
1621 assert(0 && "Dead end!");
1626 * Returns true, if the entity can be accessed directly,
1627 * or false, if the address must be loaded first
1629 int is_direct_entity(ir_entity *ent) {
1630 return get_entity_visibility(ent) != visibility_external_allocated;
1631 /* visibility vis = get_entity_visibility(ent);
1632 if(is_Method_type(get_entity_type(ent)))
1634 return (vis!=visibility_external_allocated);
1638 return (vis==visibility_local);
1643 * Transforms a SymConst.
1645 * @param mod the debug module
1646 * @param block the block the new node should belong to
1647 * @param node the ir Const node
1648 * @param mode node mode
1649 * @return the created ppc Load immediate node
1651 static ir_node *gen_ppc32_SymConst(ppc32_transform_env_t *env) {
1652 ir_entity *ent = get_ppc32_frame_entity(env->irn);
1653 ident *id_symconst = get_entity_ident(ent);
1655 switch(get_nice_modecode(env->mode)){
1658 if (is_direct_entity(ent))
1660 ir_node *node_addis = new_rd_ppc32_Addis_zero(env->dbg, env->irg, env->block, env->mode, ppc32_ao_Hi16, NULL, id_symconst);
1661 node = new_rd_ppc32_Ori(env->dbg, env->irg, env->block, node_addis, env->mode);
1662 set_ppc32_symconst_ident(node, id_symconst);
1663 set_ppc32_offset_mode(node, ppc32_ao_Lo16);
1667 ir_node *node_addis = new_rd_ppc32_Addis_zero(env->dbg, env->irg, env->block, env->mode, ppc32_ao_Ha16, NULL, id_symconst);
1668 node = new_rd_ppc32_Lwz(env->dbg, env->irg, env->block, node_addis, new_NoMem());
1669 set_ppc32_symconst_ident(node, id_symconst);
1670 set_ppc32_offset_mode(node, ppc32_ao_Lo16);
1671 node = new_rd_Proj(env->dbg, env->irg, env->block, node, env->mode, pn_Load_res);
1677 fprintf(stderr, "Mode for SymConst not supported: %s\n", get_mode_name(env->mode));
1685 * Transforms the given firm node (and maybe some other related nodes)
1686 * into one or more assembler nodes.
1688 * @param node the firm node
1689 * @param env the debug module
1691 void ppc32_transform_const(ir_node *node, void *env) {
1692 ppc32_code_gen_t *cgenv = (ppc32_code_gen_t *)env;
1693 ir_node *asm_node = NULL;
1694 ppc32_transform_env_t tenv;
1699 tenv.block = get_nodes_block(node);
1700 tenv.dbg = get_irn_dbg_info(node);
1701 tenv.irg = current_ir_graph;
1703 DEBUG_ONLY(tenv.mod = cgenv->mod;)
1704 tenv.mode = get_irn_mode(node);
1706 #define OTHER_GEN(a) \
1707 if (get_irn_op(node) == get_op_##a()) { \
1708 asm_node = gen_##a(&tenv); \
1711 DBG((tenv.mod, LEVEL_1, "check %+F ... ", node));
1713 OTHER_GEN(ppc32_Const)
1714 else OTHER_GEN(ppc32_fConst)
1715 else OTHER_GEN(ppc32_SymConst)
1718 exchange(node, asm_node);
1719 DB((tenv.mod, LEVEL_1, "created node %+F[%p]\n", asm_node, asm_node));
1722 DB((tenv.mod, LEVEL_1, "ignored\n"));