lower_dw.c 75.9 KB
Newer Older
Christian Würdig's avatar
Christian Würdig committed
1
/*
Michael Beck's avatar
Michael Beck committed
2
 * Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
Christian Würdig's avatar
Christian Würdig committed
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
 *
 * This file is part of libFirm.
 *
 * This file may be distributed and/or modified under the terms of the
 * GNU General Public License version 2 as published by the Free Software
 * Foundation and appearing in the file LICENSE.GPL included in the
 * packaging of this file.
 *
 * Licensees holding valid libFirm Professional Edition licenses may use
 * this file in accordance with the libFirm Commercial License.
 * Agreement provided with the Software.
 *
 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE.
 */

Michael Beck's avatar
Michael Beck committed
20
21
22
23
24
25
/**
 * @file
 * @brief   Lower Double word operations, ie 64bit -> 32bit, 32bit -> 16bit etc.
 * @date    8.10.2004
 * @author  Michael Beck
 * @version $Id$
26
 */
Matthias Braun's avatar
Matthias Braun committed
27
#include "config.h"
28

29
#include <string.h>
30
#include <stdlib.h>
31
32
#include <assert.h>

33
#include "error.h"
34
#include "lowering.h"
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
#include "irnode_t.h"
#include "irgraph_t.h"
#include "irmode_t.h"
#include "iropt_t.h"
#include "irgmod.h"
#include "tv_t.h"
#include "dbginfo_t.h"
#include "iropt_dbg.h"
#include "irflag_t.h"
#include "firmstat.h"
#include "irgwalk.h"
#include "ircons.h"
#include "irflag.h"
#include "irtools.h"
#include "debug.h"
#include "set.h"
#include "pmap.h"
#include "pdeq.h"
Christian Würdig's avatar
Christian Würdig committed
53
#include "irdump.h"
54
#include "array_t.h"
Michael Beck's avatar
Michael Beck committed
55
#include "irpass_t.h"
56

Michael Beck's avatar
Michael Beck committed
57
58
59
60
/** A map from mode to a primitive type. */
static pmap *prim_types;

/** A map from (op, imode, omode) to Intrinsic functions entities. */
61
62
static set *intrinsic_fkt;

Michael Beck's avatar
Michael Beck committed
63
64
65
/** A map from (imode, omode) to conv function types. */
static set *conv_types;

66
67
68
69
/** A map from a method type to its lowered type. */
static pmap *lowered_type;

/** The types for the binop and unop intrinsics. */
Christian Würdig's avatar
Christian Würdig committed
70
static ir_type *binop_tp_u, *binop_tp_s, *unop_tp_u, *unop_tp_s, *shiftop_tp_u, *shiftop_tp_s, *tp_s, *tp_u;
71
72
73
74
75

/** the debug handle */
DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)

/**
Michael Beck's avatar
Michael Beck committed
76
 * An entry in the (op, imode, omode) -> entity map.
77
78
79
 */
typedef struct _op_mode_entry {
	const ir_op   *op;    /**< the op */
Michael Beck's avatar
Michael Beck committed
80
81
	const ir_mode *imode; /**< the input mode */
	const ir_mode *omode; /**< the output mode */
82
	ir_entity     *ent;   /**< the associated entity of this (op, imode, omode) triple */
83
84
} op_mode_entry_t;

Michael Beck's avatar
Michael Beck committed
85
86
87
88
89
90
91
92
93
/**
 * An entry in the (imode, omode) -> tp map.
 */
typedef struct _conv_tp_entry {
	const ir_mode *imode; /**< the input mode */
	const ir_mode *omode; /**< the output mode */
	ir_type       *mtd;   /**< the associated method type of this (imode, omode) pair */
} conv_tp_entry_t;

94
95
96
97
98
/**
 * Every double word node will be replaced,
 * we need some store to hold the replacement:
 */
typedef struct _node_entry_t {
99
100
	ir_node *low_word;    /**< the low word */
	ir_node *high_word;   /**< the high word */
101
102
103
} node_entry_t;

enum lower_flags {
104
105
	MUST_BE_LOWERED = 1,  /**< graph must be lowered */
	CF_CHANGED      = 2,  /**< control flow was changed */
106
107
108
109
110
111
112
113
};

/**
 * The lower environment.
 */
typedef struct _lower_env_t {
	node_entry_t **entries;       /**< entries per node */
	struct obstack obst;          /**< an obstack holding the temporary data */
114
	ir_type  *l_mtp;              /**< lowered method type of the current method */
Michael Beck's avatar
BugFix:    
Michael Beck committed
115
116
	tarval   *tv_mode_bytes;      /**< a tarval containing the number of bytes in the lowered modes */
	tarval   *tv_mode_bits;       /**< a tarval containing the number of bits in the lowered modes */
117
118
	pdeq     *waitq;              /**< a wait queue of all nodes that must be handled later */
	pmap     *proj_2_block;       /**< a map from ProjX to its destination blocks */
119
120
	ident    *first_id;           /**< .l for little and .h for big endian */
	ident    *next_id;            /**< .h for little and .l for big endian */
121
122
123
	const lwrdw_param_t *params;  /**< transformation parameter */
	unsigned flags;               /**< some flags */
	int      n_entries;           /**< number of entries */
124
	ir_type  *value_param_tp;     /**< the old value param type */
125
126
} lower_env_t;

Michael Beck's avatar
Michael Beck committed
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
/**
 * Get a primitive mode for a mode.
 */
static ir_type *get_primitive_type(ir_mode *mode) {
	pmap_entry *entry = pmap_find(prim_types, mode);
	ir_type *tp;
	char buf[64];

	if (entry)
		return entry->value;

	snprintf(buf, sizeof(buf), "_prim_%s", get_mode_name(mode));
	tp = new_type_primitive(new_id_from_str(buf), mode);

	pmap_insert(prim_types, mode, tp);
	return tp;
143
}  /* get_primitive_type */
Michael Beck's avatar
Michael Beck committed
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172

/**
 * Create a method type for a Conv emulation from imode to omode.
 */
static ir_type *get_conv_type(ir_mode *imode, ir_mode *omode, lower_env_t *env) {
	conv_tp_entry_t key, *entry;
	ir_type *mtd;

	key.imode = imode;
	key.omode = omode;
	key.mtd   = NULL;

	entry = set_insert(conv_types, &key, sizeof(key), HASH_PTR(imode) ^ HASH_PTR(omode));
	if (! entry->mtd) {
		int n_param = 1, n_res = 1;
		char buf[64];

		if (imode == env->params->high_signed || imode == env->params->high_unsigned)
			n_param = 2;
		if (omode == env->params->high_signed || omode == env->params->high_unsigned)
			n_res = 2;

		/* create a new one */
		snprintf(buf, sizeof(buf), "LConv%s%s", get_mode_name(imode), get_mode_name(omode));
		mtd = new_type_method(new_id_from_str(buf), n_param, n_res);

		/* set param types and result types */
		n_param = 0;
		if (imode == env->params->high_signed) {
173
			set_method_param_type(mtd, n_param++, tp_u);
Michael Beck's avatar
Michael Beck committed
174
			set_method_param_type(mtd, n_param++, tp_s);
Michael Beck's avatar
BugFix:    
Michael Beck committed
175
		} else if (imode == env->params->high_unsigned) {
Michael Beck's avatar
Michael Beck committed
176
177
			set_method_param_type(mtd, n_param++, tp_u);
			set_method_param_type(mtd, n_param++, tp_u);
Michael Beck's avatar
BugFix:    
Michael Beck committed
178
		} else {
Michael Beck's avatar
Michael Beck committed
179
180
			ir_type *tp = get_primitive_type(imode);
			set_method_param_type(mtd, n_param++, tp);
Michael Beck's avatar
BugFix:    
Michael Beck committed
181
		}  /* if */
Michael Beck's avatar
Michael Beck committed
182
183
184

		n_res = 0;
		if (omode == env->params->high_signed) {
185
			set_method_res_type(mtd, n_res++, tp_u);
Michael Beck's avatar
Michael Beck committed
186
			set_method_res_type(mtd, n_res++, tp_s);
Michael Beck's avatar
BugFix:    
Michael Beck committed
187
		} else if (omode == env->params->high_unsigned) {
Michael Beck's avatar
Michael Beck committed
188
189
			set_method_res_type(mtd, n_res++, tp_u);
			set_method_res_type(mtd, n_res++, tp_u);
Michael Beck's avatar
BugFix:    
Michael Beck committed
190
		} else {
Michael Beck's avatar
Michael Beck committed
191
192
			ir_type *tp = get_primitive_type(omode);
			set_method_res_type(mtd, n_res++, tp);
Michael Beck's avatar
BugFix:    
Michael Beck committed
193
		}  /* if */
Michael Beck's avatar
Michael Beck committed
194
		entry->mtd = mtd;
Michael Beck's avatar
BugFix:    
Michael Beck committed
195
	} else {
Michael Beck's avatar
Michael Beck committed
196
		mtd = entry->mtd;
Michael Beck's avatar
BugFix:    
Michael Beck committed
197
	}  /* if */
Michael Beck's avatar
Michael Beck committed
198
	return mtd;
199
}  /* get_conv_type */
Michael Beck's avatar
Michael Beck committed
200

201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
/**
 * Add an additional control flow input to a block.
 * Patch all Phi nodes. The new Phi inputs are copied from
 * old input number nr.
 */
static void add_block_cf_input_nr(ir_node *block, int nr, ir_node *cf)
{
	int i, arity = get_irn_arity(block);
	ir_node **in, *phi;

	assert(nr < arity);

	NEW_ARR_A(ir_node *, in, arity + 1);
	for (i = 0; i < arity; ++i)
		in[i] = get_irn_n(block, i);
	in[i] = cf;

	set_irn_in(block, i + 1, in);

220
	for (phi = get_Block_phis(block); phi != NULL; phi = get_Phi_next(phi)) {
221
222
223
224
		for (i = 0; i < arity; ++i)
			in[i] = get_irn_n(phi, i);
		in[i] = in[nr];
		set_irn_in(phi, i + 1, in);
Michael Beck's avatar
BugFix:    
Michael Beck committed
225
	}  /* for */
226
}  /* add_block_cf_input_nr */
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241

/**
 * Add an additional control flow input to a block.
 * Patch all Phi nodes. The new Phi inputs are copied from
 * old input from cf tmpl.
 */
static void add_block_cf_input(ir_node *block, ir_node *tmpl, ir_node *cf)
{
	int i, arity = get_irn_arity(block);
	int nr = 0;

	for (i = 0; i < arity; ++i) {
		if (get_irn_n(block, i) == tmpl) {
			nr = i;
			break;
Michael Beck's avatar
BugFix:    
Michael Beck committed
242
243
		}  /* if */
	}  /* for */
244
245
	assert(i < arity);
	add_block_cf_input_nr(block, nr, cf);
246
}  /* add_block_cf_input */
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267

/**
 * Return the "operational" mode of a Firm node.
 */
static ir_mode *get_irn_op_mode(ir_node *node)
{
	switch (get_irn_opcode(node)) {
	case iro_Load:
		return get_Load_mode(node);
	case iro_Store:
		return get_irn_mode(get_Store_value(node));
	case iro_DivMod:
		return get_irn_mode(get_DivMod_left(node));
	case iro_Div:
		return get_irn_mode(get_Div_left(node));
	case iro_Mod:
		return get_irn_mode(get_Mod_left(node));
	case iro_Cmp:
		return get_irn_mode(get_Cmp_left(node));
	default:
		return get_irn_mode(node);
Michael Beck's avatar
BugFix:    
Michael Beck committed
268
	}  /* switch */
269
}  /* get_irn_op_mode */
270
271

/**
272
 * Walker, prepare the node links.
273
274
275
276
277
278
 */
static void prepare_links(ir_node *node, void *env)
{
	lower_env_t  *lenv = env;
	ir_mode      *mode = get_irn_op_mode(node);
	node_entry_t *link;
Michael Beck's avatar
Michael Beck committed
279
	int          i, idx;
280
281
282
283
284
285
286
287

	if (mode == lenv->params->high_signed ||
		mode == lenv->params->high_unsigned) {
		/* ok, found a node that will be lowered */
		link = obstack_alloc(&lenv->obst, sizeof(*link));

		memset(link, 0, sizeof(*link));

Michael Beck's avatar
Michael Beck committed
288
289
290
291
292
293
294
295
296
297
298
		idx = get_irn_idx(node);
		if (idx >= lenv->n_entries) {
			/* enlarge: this happens only for Rotl nodes which is RARELY */
			int old = lenv->n_entries;
			int n_idx = idx + (idx >> 3);

			ARR_RESIZE(node_entry_t *, lenv->entries, n_idx);
			memset(&lenv->entries[old], 0, (n_idx - old) * sizeof(lenv->entries[0]));
			lenv->n_entries = n_idx;
		}
		lenv->entries[idx] = link;
299
		lenv->flags |= MUST_BE_LOWERED;
300
	} else if (is_Conv(node)) {
301
302
303
304
305
306
		/* Conv nodes have two modes */
		ir_node *pred = get_Conv_op(node);
		mode = get_irn_mode(pred);

		if (mode == lenv->params->high_signed ||
			mode == lenv->params->high_unsigned) {
Michael Beck's avatar
BugFix:    
Michael Beck committed
307
			/* must lower this node either but don't need a link */
308
			lenv->flags |= MUST_BE_LOWERED;
Michael Beck's avatar
BugFix:    
Michael Beck committed
309
		}  /* if */
310
		return;
Michael Beck's avatar
BugFix:    
Michael Beck committed
311
	}  /* if */
312
313
314
315
316
317
318
319

	if (is_Proj(node)) {
		/* link all Proj nodes to its predecessor:
		   Note that Tuple Proj's and its Projs are linked either. */
		ir_node *pred = get_Proj_pred(node);

		set_irn_link(node, get_irn_link(pred));
		set_irn_link(pred, node);
Michael Beck's avatar
BugFix:    
Michael Beck committed
320
	} else if (is_Phi(node)) {
321
322
		/* link all Phi nodes to its block */
		ir_node *block = get_nodes_block(node);
323
		add_Block_phi(block, node);
Michael Beck's avatar
BugFix:    
Michael Beck committed
324
	} else if (is_Block(node)) {
325
326
327
328
329
330
		/* fill the Proj -> Block map */
		for (i = get_Block_n_cfgpreds(node) - 1; i >= 0; --i) {
			ir_node *pred = get_Block_cfgpred(node, i);

			if (is_Proj(pred))
				pmap_insert(lenv->proj_2_block, pred, node);
Michael Beck's avatar
BugFix:    
Michael Beck committed
331
332
		}  /* for */
	}  /* if */
333
}  /* prepare_links */
334
335
336
337
338
339
340
341
342

/**
 * Translate a Constant: create two.
 */
static void lower_Const(ir_node *node, ir_mode *mode, lower_env_t *env) {
	tarval   *tv, *tv_l, *tv_h;
	ir_node  *low, *high;
	dbg_info *dbg = get_irn_dbg_info(node);
	int      idx;
343
	ir_graph *irg = current_ir_graph;
344
	ir_mode  *low_mode = env->params->low_unsigned;
345
346
347

	tv   = get_Const_tarval(node);

348
	tv_l = tarval_convert_to(tv, low_mode);
349
	low  = new_rd_Const(dbg, irg, tv_l);
350

Michael Beck's avatar
BugFix:    
Michael Beck committed
351
	tv_h = tarval_convert_to(tarval_shrs(tv, env->tv_mode_bits), mode);
352
	high = new_rd_Const(dbg, irg, tv_h);
353
354
355
356
357

	idx = get_irn_idx(node);
	assert(idx < env->n_entries);
	env->entries[idx]->low_word  = low;
	env->entries[idx]->high_word = high;
358
}  /* lower_Const */
359
360
361
362
363

/**
 * Translate a Load: create two.
 */
static void lower_Load(ir_node *node, ir_mode *mode, lower_env_t *env) {
364
365
366
367
368
369
370
371
	ir_mode    *low_mode = env->params->low_unsigned;
	ir_graph   *irg = current_ir_graph;
	ir_node    *adr = get_Load_ptr(node);
	ir_node    *mem = get_Load_mem(node);
	ir_node    *low, *high, *proj;
	dbg_info   *dbg;
	ir_node    *block = get_nodes_block(node);
	int         idx;
372
	ir_cons_flags volatility = get_Load_volatility(node) == volatility_is_volatile
373
	                         ? cons_volatile : 0;
374
375
376

	if (env->params->little_endian) {
		low  = adr;
377
		high = new_r_Add(block, adr, new_r_Const(irg, env->tv_mode_bytes), get_irn_mode(adr));
Michael Beck's avatar
BugFix:    
Michael Beck committed
378
	} else {
379
		low  = new_r_Add(block, adr, new_r_Const(irg, env->tv_mode_bytes), get_irn_mode(adr));
380
		high = adr;
Michael Beck's avatar
BugFix:    
Michael Beck committed
381
	}  /* if */
382
383
384

	/* create two loads */
	dbg  = get_irn_dbg_info(node);
385
386
387
	low  = new_rd_Load(dbg, block, mem,  low,  low_mode, volatility);
	proj = new_r_Proj(block, low, mode_M, pn_Load_M);
	high = new_rd_Load(dbg, block, proj, high, mode, volatility);
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407

	idx = get_irn_idx(node);
	assert(idx < env->n_entries);
	env->entries[idx]->low_word  = low;
	env->entries[idx]->high_word = high;

	for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
		idx = get_irn_idx(proj);

		switch (get_Proj_proj(proj)) {
		case pn_Load_M:         /* Memory result. */
			/* put it to the second one */
			set_Proj_pred(proj, high);
			break;
		case pn_Load_X_except:  /* Execution result if exception occurred. */
			/* put it to the first one */
			set_Proj_pred(proj, low);
			break;
		case pn_Load_res:       /* Result of load operation. */
			assert(idx < env->n_entries);
408
409
			env->entries[idx]->low_word  = new_r_Proj(block, low,  low_mode, pn_Load_res);
			env->entries[idx]->high_word = new_r_Proj(block, high, mode,     pn_Load_res);
410
411
412
			break;
		default:
			assert(0 && "unexpected Proj number");
Michael Beck's avatar
BugFix:    
Michael Beck committed
413
		}  /* switch */
414
415
416
		/* mark this proj: we have handled it already, otherwise we might fall into
		 * out new nodes. */
		mark_irn_visited(proj);
Michael Beck's avatar
BugFix:    
Michael Beck committed
417
	}  /* for */
418
}  /* lower_Load */
419
420
421
422
423

/**
 * Translate a Store: create two.
 */
static void lower_Store(ir_node *node, ir_mode *mode, lower_env_t *env) {
424
425
426
427
428
	ir_graph     *irg;
	ir_node      *block, *adr, *mem;
	ir_node      *low, *high, *irn, *proj;
	dbg_info     *dbg;
	int           idx;
429
	node_entry_t *entry;
430
	ir_cons_flags    volatility = get_Store_volatility(node) == volatility_is_volatile
431
	                           ? cons_volatile : 0;
Matthias Braun's avatar
Matthias Braun committed
432
	(void) mode;
433
434
435
436
437
438
439
440
441

	irn = get_Store_value(node);
	entry = env->entries[get_irn_idx(irn)];
	assert(entry);

	if (! entry->low_word) {
		/* not ready yet, wait */
		pdeq_putr(env->waitq, node);
		return;
Michael Beck's avatar
BugFix:    
Michael Beck committed
442
	}  /* if */
443
444
445
446
447
448
449
450

	irg = current_ir_graph;
	adr = get_Store_ptr(node);
	mem = get_Store_mem(node);
	block = get_nodes_block(node);

	if (env->params->little_endian) {
		low  = adr;
451
		high = new_r_Add(block, adr, new_r_Const(irg, env->tv_mode_bytes), get_irn_mode(adr));
Michael Beck's avatar
BugFix:    
Michael Beck committed
452
	} else {
453
		low  = new_r_Add(block, adr, new_r_Const(irg, env->tv_mode_bytes), get_irn_mode(adr));
454
		high = adr;
Michael Beck's avatar
BugFix:    
Michael Beck committed
455
	}  /* if */
456
457
458

	/* create two Stores */
	dbg = get_irn_dbg_info(node);
459
460
461
	low  = new_rd_Store(dbg, block, mem, low,  entry->low_word, volatility);
	proj = new_r_Proj(block, low, mode_M, pn_Store_M);
	high = new_rd_Store(dbg, block, proj, high, entry->high_word, volatility);
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481

	idx = get_irn_idx(node);
	assert(idx < env->n_entries);
	env->entries[idx]->low_word  = low;
	env->entries[idx]->high_word = high;

	for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
		idx = get_irn_idx(proj);

		switch (get_Proj_proj(proj)) {
		case pn_Store_M:         /* Memory result. */
			/* put it to the second one */
			set_Proj_pred(proj, high);
			break;
		case pn_Store_X_except:  /* Execution result if exception occurred. */
			/* put it to the first one */
			set_Proj_pred(proj, low);
			break;
		default:
			assert(0 && "unexpected Proj number");
Michael Beck's avatar
BugFix:    
Michael Beck committed
482
		}  /* switch */
483
484
485
		/* mark this proj: we have handled it already, otherwise we might fall into
		 * out new nodes. */
		mark_irn_visited(proj);
Michael Beck's avatar
BugFix:    
Michael Beck committed
486
	}  /* for */
487
}  /* lower_Store */
488
489
490

/**
 * Return a node containing the address of the intrinsic emulation function.
Michael Beck's avatar
Michael Beck committed
491
492
493
494
495
496
 *
 * @param method  the method type of the emulation function
 * @param op      the emulated ir_op
 * @param imode   the input mode of the emulated opcode
 * @param omode   the output mode of the emulated opcode
 * @param env     the lower environment
497
 */
Michael Beck's avatar
Michael Beck committed
498
499
static ir_node *get_intrinsic_address(ir_type *method, ir_op *op,
                                      ir_mode *imode, ir_mode *omode,
Matthias Braun's avatar
Matthias Braun committed
500
                                      lower_env_t *env) {
501
	symconst_symbol sym;
502
	ir_entity *ent;
503
504
	op_mode_entry_t key, *entry;

Michael Beck's avatar
Michael Beck committed
505
506
507
508
	key.op    = op;
	key.imode = imode;
	key.omode = omode;
	key.ent   = NULL;
509

Michael Beck's avatar
Michael Beck committed
510
511
	entry = set_insert(intrinsic_fkt, &key, sizeof(key),
				HASH_PTR(op) ^ HASH_PTR(imode) ^ (HASH_PTR(omode) << 8));
512
513
	if (! entry->ent) {
		/* create a new one */
Michael Beck's avatar
Michael Beck committed
514
		ent = env->params->create_intrinsic(method, op, imode, omode, env->params->ctx);
515
516
517

		assert(ent && "Intrinsic creator must return an entity");
		entry->ent = ent;
Michael Beck's avatar
BugFix:    
Michael Beck committed
518
	} else {
519
		ent = entry->ent;
Michael Beck's avatar
BugFix:    
Michael Beck committed
520
	}  /* if */
521
	sym.entity_p = ent;
522
	return new_r_SymConst(current_ir_graph, mode_P_code, sym, symconst_addr_ent);
523
}  /* get_intrinsic_address */
524
525
526
527
528
529
530
531
532

/**
 * Translate a Div.
 *
 * Create an intrinsic Call.
 */
static void lower_Div(ir_node *node, ir_mode *mode, lower_env_t *env) {
	ir_node  *block, *irn, *call, *proj;
	ir_node  *in[4];
Michael Beck's avatar
Michael Beck committed
533
	ir_mode  *opmode;
534
535
536
537
538
539
540
541
542
543
544
545
546
	dbg_info *dbg;
	ir_type  *mtp;
	int      idx;
	node_entry_t *entry;

	irn   = get_Div_left(node);
	entry = env->entries[get_irn_idx(irn)];
	assert(entry);

	if (! entry->low_word) {
		/* not ready yet, wait */
		pdeq_putr(env->waitq, node);
		return;
Michael Beck's avatar
BugFix:    
Michael Beck committed
547
	}  /* if */
548
549
550
551
552
553
554
555
556
557
558
559

	in[0] = entry->low_word;
	in[1] = entry->high_word;

	irn   = get_Div_right(node);
	entry = env->entries[get_irn_idx(irn)];
	assert(entry);

	if (! entry->low_word) {
		/* not ready yet, wait */
		pdeq_putr(env->waitq, node);
		return;
Michael Beck's avatar
BugFix:    
Michael Beck committed
560
	}  /* if */
561
562
563
564

	in[2] = entry->low_word;
	in[3] = entry->high_word;

565
	dbg   = get_irn_dbg_info(node);
566
567
568
	block = get_nodes_block(node);

	mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
Michael Beck's avatar
Michael Beck committed
569
	opmode = get_irn_op_mode(node);
Matthias Braun's avatar
Matthias Braun committed
570
	irn = get_intrinsic_address(mtp, get_irn_op(node), opmode, opmode, env);
571
	call = new_rd_Call(dbg, block, get_Div_mem(node), irn, 4, in, mtp);
572
	set_irn_pinned(call, get_irn_pinned(node));
573
	irn = new_r_Proj(block, call, mode_T, pn_Call_T_result);
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589

	for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
		switch (get_Proj_proj(proj)) {
		case pn_Div_M:         /* Memory result. */
			/* reroute to the call */
			set_Proj_pred(proj, call);
			set_Proj_proj(proj, pn_Call_M_except);
			break;
		case pn_Div_X_except:  /* Execution result if exception occurred. */
			/* reroute to the call */
			set_Proj_pred(proj, call);
			set_Proj_proj(proj, pn_Call_X_except);
			break;
		case pn_Div_res:       /* Result of computation. */
			idx = get_irn_idx(proj);
			assert(idx < env->n_entries);
590
591
			env->entries[idx]->low_word  = new_r_Proj(block, irn, env->params->low_unsigned, 0);
			env->entries[idx]->high_word = new_r_Proj(block, irn, mode,                      1);
592
593
594
			break;
		default:
			assert(0 && "unexpected Proj number");
Michael Beck's avatar
BugFix:    
Michael Beck committed
595
		}  /* switch */
596
597
598
		/* mark this proj: we have handled it already, otherwise we might fall into
		 * out new nodes. */
		mark_irn_visited(proj);
Michael Beck's avatar
BugFix:    
Michael Beck committed
599
	}  /* for */
600
}  /* lower_Div */
601
602
603
604
605
606
607
608
609

/**
 * Translate a Mod.
 *
 * Create an intrinsic Call.
 */
static void lower_Mod(ir_node *node, ir_mode *mode, lower_env_t *env) {
	ir_node  *block, *proj, *irn, *call;
	ir_node  *in[4];
Michael Beck's avatar
Michael Beck committed
610
	ir_mode  *opmode;
611
612
613
614
615
616
617
618
619
620
621
622
623
	dbg_info *dbg;
	ir_type  *mtp;
	int      idx;
	node_entry_t *entry;

	irn   = get_Mod_left(node);
	entry = env->entries[get_irn_idx(irn)];
	assert(entry);

	if (! entry->low_word) {
		/* not ready yet, wait */
		pdeq_putr(env->waitq, node);
		return;
Michael Beck's avatar
BugFix:    
Michael Beck committed
624
	}  /* if */
625
626
627
628
629
630
631
632
633
634
635
636

	in[0] = entry->low_word;
	in[1] = entry->high_word;

	irn   = get_Mod_right(node);
	entry = env->entries[get_irn_idx(irn)];
	assert(entry);

	if (! entry->low_word) {
		/* not ready yet, wait */
		pdeq_putr(env->waitq, node);
		return;
Michael Beck's avatar
BugFix:    
Michael Beck committed
637
	}  /* if */
638
639
640
641

	in[2] = entry->low_word;
	in[3] = entry->high_word;

642
	dbg   = get_irn_dbg_info(node);
643
644
645
	block = get_nodes_block(node);

	mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
Michael Beck's avatar
Michael Beck committed
646
	opmode = get_irn_op_mode(node);
Matthias Braun's avatar
Matthias Braun committed
647
	irn = get_intrinsic_address(mtp, get_irn_op(node), opmode, opmode, env);
648
	call = new_rd_Call(dbg, block, get_Mod_mem(node), irn, 4, in, mtp);
649
	set_irn_pinned(call, get_irn_pinned(node));
650
	irn = new_r_Proj(block, call, mode_T, pn_Call_T_result);
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666

	for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
		switch (get_Proj_proj(proj)) {
		case pn_Mod_M:         /* Memory result. */
			/* reroute to the call */
			set_Proj_pred(proj, call);
			set_Proj_proj(proj, pn_Call_M_except);
			break;
		case pn_Mod_X_except:  /* Execution result if exception occurred. */
			/* reroute to the call */
			set_Proj_pred(proj, call);
			set_Proj_proj(proj, pn_Call_X_except);
			break;
		case pn_Mod_res:       /* Result of computation. */
			idx = get_irn_idx(proj);
			assert(idx < env->n_entries);
667
668
			env->entries[idx]->low_word  = new_r_Proj(block, irn, env->params->low_unsigned, 0);
			env->entries[idx]->high_word = new_r_Proj(block, irn, mode,                      1);
669
670
671
			break;
		default:
			assert(0 && "unexpected Proj number");
Michael Beck's avatar
BugFix:    
Michael Beck committed
672
		}  /* switch */
673
674
675
		/* mark this proj: we have handled it already, otherwise we might fall into
		 * out new nodes. */
		mark_irn_visited(proj);
Michael Beck's avatar
BugFix:    
Michael Beck committed
676
	}  /* for */
677
}  /* lower_Mod */
678
679
680
681
682
683
684

/**
 * Translate a DivMod.
 *
 * Create two intrinsic Calls.
 */
static void lower_DivMod(ir_node *node, ir_mode *mode, lower_env_t *env) {
Matthias Braun's avatar
Matthias Braun committed
685
686
687
	ir_node  *block, *proj, *irn, *mem, *callDiv, *callMod;
	ir_node  *resDiv = NULL;
	ir_node  *resMod = NULL;
688
	ir_node  *in[4];
Michael Beck's avatar
Michael Beck committed
689
	ir_mode  *opmode;
690
691
692
693
694
695
696
697
698
699
700
701
	dbg_info *dbg;
	ir_type  *mtp;
	int      idx;
	node_entry_t *entry;
	unsigned flags = 0;

	/* check if both results are needed */
	for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
		switch (get_Proj_proj(proj)) {
		case pn_DivMod_res_div: flags |= 1; break;
		case pn_DivMod_res_mod: flags |= 2; break;
		default: break;
Michael Beck's avatar
BugFix:    
Michael Beck committed
702
703
		}  /* switch */
	}  /* for */
704
705
706
707
708
709
710
711
712

	irn   = get_DivMod_left(node);
	entry = env->entries[get_irn_idx(irn)];
	assert(entry);

	if (! entry->low_word) {
		/* not ready yet, wait */
		pdeq_putr(env->waitq, node);
		return;
Michael Beck's avatar
BugFix:    
Michael Beck committed
713
	}  /* if */
714
715
716
717
718
719
720
721
722
723
724
725

	in[0] = entry->low_word;
	in[1] = entry->high_word;

	irn   = get_DivMod_right(node);
	entry = env->entries[get_irn_idx(irn)];
	assert(entry);

	if (! entry->low_word) {
		/* not ready yet, wait */
		pdeq_putr(env->waitq, node);
		return;
Michael Beck's avatar
BugFix:    
Michael Beck committed
726
	}  /* if */
727
728
729
730

	in[2] = entry->low_word;
	in[3] = entry->high_word;

731
	dbg   = get_irn_dbg_info(node);
732
733
734
735
736
737
738
	block = get_nodes_block(node);

	mem = get_DivMod_mem(node);

	callDiv = callMod = NULL;
	mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
	if (flags & 1) {
Michael Beck's avatar
Michael Beck committed
739
		opmode = get_irn_op_mode(node);
Matthias Braun's avatar
Matthias Braun committed
740
		irn = get_intrinsic_address(mtp, op_Div, opmode, opmode, env);
741
		callDiv = new_rd_Call(dbg, block, mem, irn, 4, in, mtp);
742
		set_irn_pinned(callDiv, get_irn_pinned(node));
743
		resDiv = new_r_Proj(block, callDiv, mode_T, pn_Call_T_result);
Michael Beck's avatar
BugFix:    
Michael Beck committed
744
	}  /* if */
745
746
	if (flags & 2) {
		if (flags & 1)
747
			mem = new_r_Proj(block, callDiv, mode_M, pn_Call_M);
Michael Beck's avatar
Michael Beck committed
748
		opmode = get_irn_op_mode(node);
Matthias Braun's avatar
Matthias Braun committed
749
		irn = get_intrinsic_address(mtp, op_Mod, opmode, opmode, env);
750
		callMod = new_rd_Call(dbg, block, mem, irn, 4, in, mtp);
751
		set_irn_pinned(callMod, get_irn_pinned(node));
752
		resMod = new_r_Proj(block, callMod, mode_T, pn_Call_T_result);
Michael Beck's avatar
BugFix:    
Michael Beck committed
753
	}  /* if */
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769

	for (proj = get_irn_link(node); proj; proj = get_irn_link(proj)) {
		switch (get_Proj_proj(proj)) {
		case pn_DivMod_M:         /* Memory result. */
			/* reroute to the first call */
			set_Proj_pred(proj, callDiv ? callDiv : (callMod ? callMod : mem));
			set_Proj_proj(proj, pn_Call_M_except);
			break;
		case pn_DivMod_X_except:  /* Execution result if exception occurred. */
			/* reroute to the first call */
			set_Proj_pred(proj, callDiv ? callDiv : (callMod ? callMod : mem));
			set_Proj_proj(proj, pn_Call_X_except);
			break;
		case pn_DivMod_res_div:   /* Result of Div. */
			idx = get_irn_idx(proj);
			assert(idx < env->n_entries);
770
771
			env->entries[idx]->low_word  = new_r_Proj(block, resDiv, env->params->low_unsigned, 0);
			env->entries[idx]->high_word = new_r_Proj(block, resDiv, mode,                      1);
772
773
774
			break;
		case pn_DivMod_res_mod:   /* Result of Mod. */
			idx = get_irn_idx(proj);
775
776
			env->entries[idx]->low_word  = new_r_Proj(block, resMod, env->params->low_unsigned, 0);
			env->entries[idx]->high_word = new_r_Proj(block, resMod, mode,                      1);
777
778
779
			break;
		default:
			assert(0 && "unexpected Proj number");
Michael Beck's avatar
BugFix:    
Michael Beck committed
780
		}  /* switch */
781
782
783
		/* mark this proj: we have handled it already, otherwise we might fall into
		 * out new nodes. */
		mark_irn_visited(proj);
Michael Beck's avatar
BugFix:    
Michael Beck committed
784
	}  /* for */
785
}  /* lower_DivMod */
786
787
788
789
790
791
792
793
794
795
796
797

/**
 * Translate a Binop.
 *
 * Create an intrinsic Call.
 */
static void lower_Binop(ir_node *node, ir_mode *mode, lower_env_t *env) {
	ir_node  *block, *irn;
	ir_node  *in[4];
	dbg_info *dbg;
	ir_type  *mtp;
	int      idx;
798
	ir_graph *irg;
799
800
801
802
803
804
805
806
807
808
	node_entry_t *entry;

	irn   = get_binop_left(node);
	entry = env->entries[get_irn_idx(irn)];
	assert(entry);

	if (! entry->low_word) {
		/* not ready yet, wait */
		pdeq_putr(env->waitq, node);
		return;
Michael Beck's avatar
BugFix:    
Michael Beck committed
809
	}  /* if */
810
811
812
813
814
815
816
817
818
819
820
821

	in[0] = entry->low_word;
	in[1] = entry->high_word;

	irn   = get_binop_right(node);
	entry = env->entries[get_irn_idx(irn)];
	assert(entry);

	if (! entry->low_word) {
		/* not ready yet, wait */
		pdeq_putr(env->waitq, node);
		return;
Michael Beck's avatar
BugFix:    
Michael Beck committed
822
	}  /* if */
823
824
825
826

	in[2] = entry->low_word;
	in[3] = entry->high_word;

827
	dbg   = get_irn_dbg_info(node);
828
	block = get_nodes_block(node);
829
	irg   = current_ir_graph;
830
831

	mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
Matthias Braun's avatar
Matthias Braun committed
832
	irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, env);
833
	irn = new_rd_Call(dbg, block, get_irg_no_mem(current_ir_graph),
834
835
		irn, 4, in, mtp);
	set_irn_pinned(irn, get_irn_pinned(node));
836
	irn = new_r_Proj(block, irn, mode_T, pn_Call_T_result);
837
838
839

	idx = get_irn_idx(node);
	assert(idx < env->n_entries);
840
841
	env->entries[idx]->low_word  = new_r_Proj(block, irn, env->params->low_unsigned, 0);
	env->entries[idx]->high_word = new_r_Proj(block, irn, mode,                      1);
842
}  /* lower_Binop */
843

Christian Würdig's avatar
Christian Würdig committed
844
845
846
847
848
849
850
851
852
853
854
/**
 * Translate a Shiftop.
 *
 * Create an intrinsic Call.
 */
static void lower_Shiftop(ir_node *node, ir_mode *mode, lower_env_t *env) {
	ir_node  *block, *irn;
	ir_node  *in[3];
	dbg_info *dbg;
	ir_type  *mtp;
	int      idx;
855
	ir_graph *irg;
Christian Würdig's avatar
Christian Würdig committed
856
857
858
859
860
861
862
863
864
865
	node_entry_t *entry;

	irn   = get_binop_left(node);
	entry = env->entries[get_irn_idx(irn)];
	assert(entry);

	if (! entry->low_word) {
		/* not ready yet, wait */
		pdeq_putr(env->waitq, node);
		return;
Michael Beck's avatar
BugFix:    
Michael Beck committed
866
	}  /* if */
Christian Würdig's avatar
Christian Würdig committed
867
868
869
870
871
872
873
874
875

	in[0] = entry->low_word;
	in[1] = entry->high_word;

	/* The shift count is always mode_Iu in firm, so there is no need for lowering */
	in[2] = get_binop_right(node);

	dbg   = get_irn_dbg_info(node);
	block = get_nodes_block(node);
876
	irg  = current_ir_graph;
Christian Würdig's avatar
Christian Würdig committed
877
878

	mtp = mode_is_signed(mode) ? shiftop_tp_s : shiftop_tp_u;
Matthias Braun's avatar
Matthias Braun committed
879
	irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, env);
880
	irn = new_rd_Call(dbg, block, get_irg_no_mem(current_ir_graph),
Christian Würdig's avatar
Christian Würdig committed
881
882
		irn, 3, in, mtp);
	set_irn_pinned(irn, get_irn_pinned(node));
883
	irn = new_r_Proj(block, irn, mode_T, pn_Call_T_result);
Christian Würdig's avatar
Christian Würdig committed
884
885
886

	idx = get_irn_idx(node);
	assert(idx < env->n_entries);
887
888
	env->entries[idx]->low_word  = new_r_Proj(block, irn, env->params->low_unsigned, 0);
	env->entries[idx]->high_word = new_r_Proj(block, irn, mode,                      1);
889
}  /* lower_Shiftop */
Christian Würdig's avatar
Christian Würdig committed
890

Michael Beck's avatar
Michael Beck committed
891
892
893
894
/**
 * Translate a Shr and handle special cases.
 */
static void lower_Shr(ir_node *node, ir_mode *mode, lower_env_t *env) {
895
896
	ir_node  *right = get_Shr_right(node);
	ir_graph *irg = current_ir_graph;
Michael Beck's avatar
Michael Beck committed
897
898
899
900
901

	if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
		tarval *tv = get_Const_tarval(right);

		if (tarval_is_long(tv) &&
902
		    get_tarval_long(tv) >= (long)get_mode_size_bits(mode)) {
Michael Beck's avatar
Michael Beck committed
903
904
			ir_node *block = get_nodes_block(node);
			ir_node *left = get_Shr_left(node);
905
906
			ir_node *c;
			long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
Michael Beck's avatar
Michael Beck committed
907
908
909
910
911
			int idx = get_irn_idx(left);

			left = env->entries[idx]->high_word;
			idx = get_irn_idx(node);

912
			if (shf_cnt > 0) {
913
				c = new_r_Const_long(irg, env->params->low_unsigned, shf_cnt);
914
				env->entries[idx]->low_word = new_r_Shr(block, left, c, mode);
Michael Beck's avatar
BugFix:    
Michael Beck committed
915
			} else {
916
				env->entries[idx]->low_word = left;
Michael Beck's avatar
BugFix:    
Michael Beck committed
917
			}  /* if */
918
			env->entries[idx]->high_word = new_r_Const(irg, get_mode_null(mode));
Michael Beck's avatar
Michael Beck committed
919
920

			return;
Michael Beck's avatar
BugFix:    
Michael Beck committed
921
922
		}  /* if */
	}  /* if */
Michael Beck's avatar
Michael Beck committed
923
	lower_Shiftop(node, mode, env);
924
}  /* lower_Shr */
Michael Beck's avatar
Michael Beck committed
925
926
927
928
929

/**
 * Translate a Shl and handle special cases.
 */
static void lower_Shl(ir_node *node, ir_mode *mode, lower_env_t *env) {
930
931
	ir_node  *right = get_Shl_right(node);
	ir_graph *irg = current_ir_graph;
Michael Beck's avatar
Michael Beck committed
932
933
934
935
936

	if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
		tarval *tv = get_Const_tarval(right);

		if (tarval_is_long(tv) &&
937
		    get_tarval_long(tv) >= (long)get_mode_size_bits(mode)) {
938
			ir_mode *mode_l;
Michael Beck's avatar
Michael Beck committed
939
940
			ir_node *block = get_nodes_block(node);
			ir_node *left = get_Shl_left(node);
941
942
			ir_node *c;
			long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
Michael Beck's avatar
Michael Beck committed
943
944
			int idx = get_irn_idx(left);

945
			left = new_r_Conv(block, env->entries[idx]->low_word, mode);
Michael Beck's avatar
Michael Beck committed
946
947
			idx = get_irn_idx(node);

948
			mode_l = env->params->low_unsigned;
949
			if (shf_cnt > 0) {
950
				c = new_r_Const_long(irg, mode_l, shf_cnt);
951
				env->entries[idx]->high_word = new_r_Shl(block, left, c, mode);
Michael Beck's avatar
BugFix:    
Michael Beck committed
952
			} else {
953
				env->entries[idx]->high_word = left;
Michael Beck's avatar
BugFix:    
Michael Beck committed
954
			}  /* if */
955
			env->entries[idx]->low_word  = new_r_Const(irg, get_mode_null(mode_l));
Michael Beck's avatar
Michael Beck committed
956
957

			return;
Michael Beck's avatar
BugFix:    
Michael Beck committed
958
959
		}  /* if */
	}  /* if */
Michael Beck's avatar
Michael Beck committed
960
	lower_Shiftop(node, mode, env);
961
}  /* lower_Shl */
Michael Beck's avatar
Michael Beck committed
962
963
964
965
966

/**
 * Translate a Shrs and handle special cases.
 */
static void lower_Shrs(ir_node *node, ir_mode *mode, lower_env_t *env) {
967
968
	ir_node  *right = get_Shrs_right(node);
	ir_graph *irg = current_ir_graph;
Michael Beck's avatar
Michael Beck committed
969
970
971
972
973

	if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
		tarval *tv = get_Const_tarval(right);

		if (tarval_is_long(tv) &&
974
		    get_tarval_long(tv) >= (long)get_mode_size_bits(mode)) {
975
976
977
978
			ir_node *block   = get_nodes_block(node);
			ir_node *left    = get_Shrs_left(node);
			long     shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
			int      idx     = get_irn_idx(left);
979
			ir_mode *mode_l;
980
			ir_node *low;
Michael Beck's avatar
Michael Beck committed
981
982
983
984
985
			ir_node *c;

			left = env->entries[idx]->high_word;
			idx = get_irn_idx(node);

986
			mode_l = env->params->low_unsigned;
987
			if (shf_cnt > 0) {
988
				c   = new_r_Const_long(irg, mode_l, shf_cnt);
989
				low = new_r_Shrs(block, left, c, mode);
Michael Beck's avatar
BugFix:    
Michael Beck committed
990
			} else {
991
				low = left;
Michael Beck's avatar
BugFix:    
Michael Beck committed
992
			}  /* if */
993
			/* low word is expected to have mode_l */
994
			env->entries[idx]->low_word = new_r_Conv(block, low, mode_l);
995

996
			c = new_r_Const_long(irg, mode_l, get_mode_size_bits(mode) - 1);
997
			env->entries[idx]->high_word = new_r_Shrs(block, left, c, mode);
Michael Beck's avatar
Michael Beck committed
998
999

			return;
Michael Beck's avatar
BugFix:    
Michael Beck committed
1000
1001
		}  /* if */
	}  /* if */
Michael Beck's avatar
Michael Beck committed
1002
	lower_Shiftop(node, mode, env);
1003
}  /* lower_Shrs */
Michael Beck's avatar
Michael Beck committed
1004
1005

/**
Michael Beck's avatar
Michael Beck committed
1006
 * Rebuild Rotl nodes into Or(Shl, Shr) and prepare all nodes.
Michael Beck's avatar
Michael Beck committed
1007
 */
Michael Beck's avatar
Michael Beck committed
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
static void prepare_links_and_handle_rotl(ir_node *node, void *env) {
	lower_env_t *lenv = env;

	if (is_Rotl(node)) {
		ir_mode *mode = get_irn_op_mode(node);
			if (mode == lenv->params->high_signed ||
			    mode == lenv->params->high_unsigned) {
				ir_node  *right = get_Rotl_right(node);
				ir_node  *left, *shl, *shr, *or, *block, *sub, *c;
				ir_mode  *omode, *rmode;
				dbg_info *dbg;
				optimization_state_t state;

				if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
					tarval *tv = get_Const_tarval(right);

					if (tarval_is_long(tv) &&
					    get_tarval_long(tv) == (long)get_mode_size_bits(mode)) {
						/* will be optimized in lower_Rotl() */
						return;
					}
				}

				/* replace the Rotl(x,y) by an Or(Shl(x,y), Shr(x,64-y)) and lower those */
				dbg   = get_irn_dbg_info(node);
				omode = get_irn_mode(node);
				left  = get_Rotl_left(node);
				block = get_nodes_block(node);
1036
				shl   = new_rd_Shl(dbg, block, left, right, omode);
Michael Beck's avatar
Michael Beck committed
1037
1038
				rmode = get_irn_mode(right);
				c     = new_Const_long(rmode, get_mode_size_bits(omode));
1039
1040
				sub   = new_rd_Sub(dbg, block, c, right, rmode);
				shr   = new_rd_Shr(dbg, block, left, sub, omode);
Michael Beck's avatar
Michael Beck committed
1041
1042
1043
1044

				/* optimization must be switched off here, or we will get the Rotl back */
				save_optimization_state(&state);
				set_opt_algebraic_simplification(0);
1045
				or = new_rd_Or(dbg, block, shl, shr, omode);
Michael Beck's avatar
Michael Beck committed
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
				restore_optimization_state(&state);

				exchange(node, or);

				/* do lowering on the new nodes */
				prepare_links(shl, env);
				prepare_links(c, env);
				prepare_links(sub, env);
				prepare_links(shr, env);
				prepare_links(or, env);
			}
	} else {
		prepare_links(node, env);
	}
}
Michael Beck's avatar
Michael Beck committed
1061

Michael Beck's avatar
Michael Beck committed
1062
1063
1064
1065
1066
1067
1068
1069
/**
 * Translate a special case Rotl(x, sizeof(w)).
 */
static void lower_Rotl(ir_node *node, ir_mode *mode, lower_env_t *env) {
	ir_node *right = get_Rotl_right(node);
	ir_node *left = get_Rotl_left(node);
	ir_node *h, *l;
	int idx = get_irn_idx(left);
Matthias Braun's avatar
Matthias Braun committed
1070
1071
	(void) right;
	(void) mode;
Michael Beck's avatar
Michael Beck committed
1072

Michael Beck's avatar
Michael Beck committed
1073
1074
1075
	assert(get_mode_arithmetic(mode) == irma_twos_complement &&
	       is_Const(right) && tarval_is_long(get_Const_tarval(right)) &&
	       get_tarval_long(get_Const_tarval(right)) == (long)get_mode_size_bits(mode));
Michael Beck's avatar
Michael Beck committed
1076

Michael Beck's avatar
Michael Beck committed
1077
1078
1079
	l = env->entries[idx]->low_word;
	h = env->entries[idx]->high_word;
	idx = get_irn_idx(node);
Michael Beck's avatar
Michael Beck committed
1080

Michael Beck's avatar
Michael Beck committed
1081
1082
1083
	env->entries[idx]->low_word  = h;
	env->entries[idx]->high_word = l;
}  /* lower_Rotl */
1084

1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
/**
 * Translate an Unop.
 *
 * Create an intrinsic Call.
 */
static void lower_Unop(ir_node *node, ir_mode *mode, lower_env_t *env) {
	ir_node  *block, *irn;
	ir_node  *in[2];
	dbg_info *dbg;
	ir_type  *mtp;
	int      idx;
	node_entry_t *entry;

	irn   = get_unop_op(node);
	entry = env->entries[get_irn_idx(irn)];
	assert(entry);

	if (! entry->low_word) {
		/* not ready yet, wait */
		pdeq_putr(env->waitq, node);
		return;
Michael Beck's avatar
BugFix:    
Michael Beck committed
1106
	}  /* if */
1107
1108
1109
1110

	in[0] = entry->low_word;
	in[1] = entry->high_word;

1111
	dbg   = get_irn_dbg_info(node);
1112
1113
1114
	block = get_nodes_block(node);

	mtp = mode_is_signed(mode) ? unop_tp_s : unop_tp_u;
Matthias Braun's avatar
Matthias Braun committed
1115
	irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, env);
1116
	irn = new_rd_Call(dbg, block, get_irg_no_mem(current_ir_graph),
1117
1118
		irn, 2, in, mtp);
	set_irn_pinned(irn, get_irn_pinned(node));
1119
	irn = new_r_Proj(block, irn, mode_T, pn_Call_T_result);
1120
1121
1122

	idx = get_irn_idx(node);
	assert(idx < env->n_entries);
1123
1124
	env->entries[idx]->low_word  = new_r_Proj(block, irn, env->params->low_unsigned, 0);
	env->entries[idx]->high_word = new_r_Proj(block, irn, mode,                      1);
1125
}  /* lower_Unop */
1126
1127
1128
1129
1130
1131
1132

/**
 * Translate a logical Binop.
 *
 * Create two logical Binops.
 */
static void lower_Binop_logical(ir_node *node, ir_mode *mode, lower_env_t *env,
1133
								ir_node *(*constr_rd)(dbg_info *db, ir_node *block, ir_node *op1, ir_node *op2, ir_mode *mode) ) {
1134
1135
1136
1137
	ir_node  *block, *irn;
	ir_node  *lop_l, *lop_h, *rop_l, *rop_h;
	dbg_info *dbg;
	int      idx;
1138
	ir_graph *irg;
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
	node_entry_t *entry;

	irn   = get_binop_left(node);
	entry = env->entries[get_irn_idx(irn)];
	assert(entry);

	if (! entry->low_word) {
		/* not ready yet, wait */
		pdeq_putr(env->waitq, node);
		return;
Michael Beck's avatar
BugFix:    
Michael Beck committed
1149
	}  /* if */
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161

	lop_l = entry->low_word;
	lop_h = entry->high_word;

	irn   = get_binop_right(node);
	entry = env->entries[get_irn_idx(irn)];
	assert(entry);

	if (! entry->low_word) {
		/* not ready yet, wait */
		pdeq_putr(env->waitq, node);
		return;
Michael Beck's avatar
BugFix:    
Michael Beck committed
1162
	}  /* if */
1163
1164
1165
1166
1167
1168
1169
1170
1171

	rop_l = entry->low_word;
	rop_h = entry->high_word;

	dbg = get_irn_dbg_info(node);
	block = get_nodes_block(node);

	idx = get_irn_idx(node);
	assert(idx < env->n_entries);
1172
	irg = current_ir_graph;