lower_dw.c 75.3 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"
55

Michael Beck's avatar
Michael Beck committed
56
57
58
59
/** A map from mode to a primitive type. */
static pmap *prim_types;

/** A map from (op, imode, omode) to Intrinsic functions entities. */
60
61
static set *intrinsic_fkt;

Michael Beck's avatar
Michael Beck committed
62
63
64
/** A map from (imode, omode) to conv function types. */
static set *conv_types;

65
66
67
68
/** 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
69
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;
70
71
72
73
74

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

/**
Michael Beck's avatar
Michael Beck committed
75
 * An entry in the (op, imode, omode) -> entity map.
76
77
78
 */
typedef struct _op_mode_entry {
	const ir_op   *op;    /**< the op */
Michael Beck's avatar
Michael Beck committed
79
80
	const ir_mode *imode; /**< the input mode */
	const ir_mode *omode; /**< the output mode */
81
	ir_entity     *ent;   /**< the associated entity of this (op, imode, omode) triple */
82
83
} op_mode_entry_t;

Michael Beck's avatar
Michael Beck committed
84
85
86
87
88
89
90
91
92
/**
 * 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;

93
94
95
96
97
/**
 * Every double word node will be replaced,
 * we need some store to hold the replacement:
 */
typedef struct _node_entry_t {
98
99
	ir_node *low_word;    /**< the low word */
	ir_node *high_word;   /**< the high word */
100
101
102
} node_entry_t;

enum lower_flags {
103
104
	MUST_BE_LOWERED = 1,  /**< graph must be lowered */
	CF_CHANGED      = 2,  /**< control flow was changed */
105
106
107
108
109
110
111
112
};

/**
 * The lower environment.
 */
typedef struct _lower_env_t {
	node_entry_t **entries;       /**< entries per node */
	struct obstack obst;          /**< an obstack holding the temporary data */
113
	ir_type  *l_mtp;              /**< lowered method type of the current method */
Michael Beck's avatar
BugFix:    
Michael Beck committed
114
115
	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 */
116
117
	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 */
118
119
	ident    *first_id;           /**< .l for little and .h for big endian */
	ident    *next_id;            /**< .h for little and .l for big endian */
120
121
122
	const lwrdw_param_t *params;  /**< transformation parameter */
	unsigned flags;               /**< some flags */
	int      n_entries;           /**< number of entries */
123
	ir_type  *value_param_tp;     /**< the old value param type */
124
125
} lower_env_t;

Michael Beck's avatar
Michael Beck committed
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
/**
 * 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;
142
}  /* get_primitive_type */
Michael Beck's avatar
Michael Beck committed
143
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

/**
 * 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) {
172
			set_method_param_type(mtd, n_param++, tp_u);
Michael Beck's avatar
Michael Beck committed
173
			set_method_param_type(mtd, n_param++, tp_s);
Michael Beck's avatar
BugFix:    
Michael Beck committed
174
		} else if (imode == env->params->high_unsigned) {
Michael Beck's avatar
Michael Beck committed
175
176
			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
177
		} else {
Michael Beck's avatar
Michael Beck committed
178
179
			ir_type *tp = get_primitive_type(imode);
			set_method_param_type(mtd, n_param++, tp);
Michael Beck's avatar
BugFix:    
Michael Beck committed
180
		}  /* if */
Michael Beck's avatar
Michael Beck committed
181
182
183

		n_res = 0;
		if (omode == env->params->high_signed) {
184
			set_method_res_type(mtd, n_res++, tp_u);
Michael Beck's avatar
Michael Beck committed
185
			set_method_res_type(mtd, n_res++, tp_s);
Michael Beck's avatar
BugFix:    
Michael Beck committed
186
		} else if (omode == env->params->high_unsigned) {
Michael Beck's avatar
Michael Beck committed
187
188
			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
189
		} else {
Michael Beck's avatar
Michael Beck committed
190
191
			ir_type *tp = get_primitive_type(omode);
			set_method_res_type(mtd, n_res++, tp);
Michael Beck's avatar
BugFix:    
Michael Beck committed
192
		}  /* if */
Michael Beck's avatar
Michael Beck committed
193
		entry->mtd = mtd;
Michael Beck's avatar
BugFix:    
Michael Beck committed
194
	} else {
Michael Beck's avatar
Michael Beck committed
195
		mtd = entry->mtd;
Michael Beck's avatar
BugFix:    
Michael Beck committed
196
	}  /* if */
Michael Beck's avatar
Michael Beck committed
197
	return mtd;
198
}  /* get_conv_type */
Michael Beck's avatar
Michael Beck committed
199

200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
/**
 * 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);

219
	for (phi = get_Block_phis(block); phi != NULL; phi = get_Phi_next(phi)) {
220
221
222
223
		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
224
	}  /* for */
225
}  /* add_block_cf_input_nr */
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240

/**
 * 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
241
242
		}  /* if */
	}  /* for */
243
244
	assert(i < arity);
	add_block_cf_input_nr(block, nr, cf);
245
}  /* add_block_cf_input */
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266

/**
 * 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
267
	}  /* switch */
268
}  /* get_irn_op_mode */
269
270

/**
271
 * Walker, prepare the node links.
272
273
274
275
276
277
 */
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
278
	int          i, idx;
279
280
281
282
283
284
285
286

	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
287
288
289
290
291
292
293
294
295
296
297
		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;
298
		lenv->flags |= MUST_BE_LOWERED;
299
	} else if (is_Conv(node)) {
300
301
302
303
304
305
		/* 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
306
			/* must lower this node either but don't need a link */
307
			lenv->flags |= MUST_BE_LOWERED;
Michael Beck's avatar
BugFix:    
Michael Beck committed
308
		}  /* if */
309
		return;
Michael Beck's avatar
BugFix:    
Michael Beck committed
310
	}  /* if */
311
312
313
314
315
316
317
318

	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
319
	} else if (is_Phi(node)) {
320
321
		/* link all Phi nodes to its block */
		ir_node *block = get_nodes_block(node);
322
		add_Block_phi(block, node);
Michael Beck's avatar
BugFix:    
Michael Beck committed
323
	} else if (is_Block(node)) {
324
325
326
327
328
329
		/* 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
330
331
		}  /* for */
	}  /* if */
332
}  /* prepare_links */
333
334
335
336
337
338
339
340
341

/**
 * 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;
342
	ir_graph *irg = current_ir_graph;
343
	ir_mode  *low_mode = env->params->low_unsigned;
344
345
346

	tv   = get_Const_tarval(node);

347
	tv_l = tarval_convert_to(tv, low_mode);
348
	low  = new_rd_Const(dbg, irg, tv_l);
349

Michael Beck's avatar
BugFix:    
Michael Beck committed
350
	tv_h = tarval_convert_to(tarval_shrs(tv, env->tv_mode_bits), mode);
351
	high = new_rd_Const(dbg, irg, tv_h);
352
353
354
355
356

	idx = get_irn_idx(node);
	assert(idx < env->n_entries);
	env->entries[idx]->low_word  = low;
	env->entries[idx]->high_word = high;
357
}  /* lower_Const */
358
359
360
361
362

/**
 * Translate a Load: create two.
 */
static void lower_Load(ir_node *node, ir_mode *mode, lower_env_t *env) {
363
364
365
366
367
368
369
370
	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;
371
	ir_cons_flags volatility = get_Load_volatility(node) == volatility_is_volatile
372
	                         ? cons_volatile : 0;
373
374
375

	if (env->params->little_endian) {
		low  = adr;
376
		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
377
	} else {
378
		low  = new_r_Add(block, adr, new_r_Const(irg, env->tv_mode_bytes), get_irn_mode(adr));
379
		high = adr;
Michael Beck's avatar
BugFix:    
Michael Beck committed
380
	}  /* if */
381
382
383

	/* create two loads */
	dbg  = get_irn_dbg_info(node);
384
385
386
	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);
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406

	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);
407
408
			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);
409
410
411
			break;
		default:
			assert(0 && "unexpected Proj number");
Michael Beck's avatar
BugFix:    
Michael Beck committed
412
		}  /* switch */
413
414
415
		/* 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
416
	}  /* for */
417
}  /* lower_Load */
418
419
420
421
422

/**
 * Translate a Store: create two.
 */
static void lower_Store(ir_node *node, ir_mode *mode, lower_env_t *env) {
423
424
425
426
427
	ir_graph     *irg;
	ir_node      *block, *adr, *mem;
	ir_node      *low, *high, *irn, *proj;
	dbg_info     *dbg;
	int           idx;
428
	node_entry_t *entry;
429
	ir_cons_flags    volatility = get_Store_volatility(node) == volatility_is_volatile
430
	                           ? cons_volatile : 0;
Matthias Braun's avatar
Matthias Braun committed
431
	(void) mode;
432
433
434
435
436
437
438
439
440

	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
441
	}  /* if */
442
443
444
445
446
447
448
449

	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;
450
		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
451
	} else {
452
		low  = new_r_Add(block, adr, new_r_Const(irg, env->tv_mode_bytes), get_irn_mode(adr));
453
		high = adr;
Michael Beck's avatar
BugFix:    
Michael Beck committed
454
	}  /* if */
455
456
457

	/* create two Stores */
	dbg = get_irn_dbg_info(node);
458
459
460
	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);
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480

	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
481
		}  /* switch */
482
483
484
		/* 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
485
	}  /* for */
486
}  /* lower_Store */
487
488
489

/**
 * Return a node containing the address of the intrinsic emulation function.
Michael Beck's avatar
Michael Beck committed
490
491
492
493
494
495
 *
 * @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
496
 */
Michael Beck's avatar
Michael Beck committed
497
498
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
499
                                      lower_env_t *env) {
500
	symconst_symbol sym;
501
	ir_entity *ent;
502
503
	op_mode_entry_t key, *entry;

Michael Beck's avatar
Michael Beck committed
504
505
506
507
	key.op    = op;
	key.imode = imode;
	key.omode = omode;
	key.ent   = NULL;
508

Michael Beck's avatar
Michael Beck committed
509
510
	entry = set_insert(intrinsic_fkt, &key, sizeof(key),
				HASH_PTR(op) ^ HASH_PTR(imode) ^ (HASH_PTR(omode) << 8));
511
512
	if (! entry->ent) {
		/* create a new one */
Michael Beck's avatar
Michael Beck committed
513
		ent = env->params->create_intrinsic(method, op, imode, omode, env->params->ctx);
514
515
516

		assert(ent && "Intrinsic creator must return an entity");
		entry->ent = ent;
Michael Beck's avatar
BugFix:    
Michael Beck committed
517
	} else {
518
		ent = entry->ent;
Michael Beck's avatar
BugFix:    
Michael Beck committed
519
	}  /* if */
520
	sym.entity_p = ent;
521
	return new_r_SymConst(current_ir_graph, mode_P_code, sym, symconst_addr_ent);
522
}  /* get_intrinsic_address */
523
524
525
526
527
528
529
530
531

/**
 * 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
532
	ir_mode  *opmode;
533
534
535
536
537
538
539
540
541
542
543
544
545
	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
546
	}  /* if */
547
548
549
550
551
552
553
554
555
556
557
558

	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
559
	}  /* if */
560
561
562
563

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

564
	dbg   = get_irn_dbg_info(node);
565
566
567
	block = get_nodes_block(node);

	mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
Michael Beck's avatar
Michael Beck committed
568
	opmode = get_irn_op_mode(node);
Matthias Braun's avatar
Matthias Braun committed
569
	irn = get_intrinsic_address(mtp, get_irn_op(node), opmode, opmode, env);
570
	call = new_rd_Call(dbg, block, get_Div_mem(node), irn, 4, in, mtp);
571
	set_irn_pinned(call, get_irn_pinned(node));
572
	irn = new_r_Proj(block, call, mode_T, pn_Call_T_result);
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588

	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);
589
590
			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);
591
592
593
			break;
		default:
			assert(0 && "unexpected Proj number");
Michael Beck's avatar
BugFix:    
Michael Beck committed
594
		}  /* switch */
595
596
597
		/* 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
598
	}  /* for */
599
}  /* lower_Div */
600
601
602
603
604
605
606
607
608

/**
 * 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
609
	ir_mode  *opmode;
610
611
612
613
614
615
616
617
618
619
620
621
622
	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
623
	}  /* if */
624
625
626
627
628
629
630
631
632
633
634
635

	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
636
	}  /* if */
637
638
639
640

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

641
	dbg   = get_irn_dbg_info(node);
642
643
644
	block = get_nodes_block(node);

	mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
Michael Beck's avatar
Michael Beck committed
645
	opmode = get_irn_op_mode(node);
Matthias Braun's avatar
Matthias Braun committed
646
	irn = get_intrinsic_address(mtp, get_irn_op(node), opmode, opmode, env);
647
	call = new_rd_Call(dbg, block, get_Mod_mem(node), irn, 4, in, mtp);
648
	set_irn_pinned(call, get_irn_pinned(node));
649
	irn = new_r_Proj(block, call, mode_T, pn_Call_T_result);
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665

	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);
666
667
			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);
668
669
670
			break;
		default:
			assert(0 && "unexpected Proj number");
Michael Beck's avatar
BugFix:    
Michael Beck committed
671
		}  /* switch */
672
673
674
		/* 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
675
	}  /* for */
676
}  /* lower_Mod */
677
678
679
680
681
682
683

/**
 * 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
684
685
686
	ir_node  *block, *proj, *irn, *mem, *callDiv, *callMod;
	ir_node  *resDiv = NULL;
	ir_node  *resMod = NULL;
687
	ir_node  *in[4];
Michael Beck's avatar
Michael Beck committed
688
	ir_mode  *opmode;
689
690
691
692
693
694
695
696
697
698
699
700
	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
701
702
		}  /* switch */
	}  /* for */
703
704
705
706
707
708
709
710
711

	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
712
	}  /* if */
713
714
715
716
717
718
719
720
721
722
723
724

	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
725
	}  /* if */
726
727
728
729

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

730
	dbg   = get_irn_dbg_info(node);
731
732
733
734
735
736
737
	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
738
		opmode = get_irn_op_mode(node);
Matthias Braun's avatar
Matthias Braun committed
739
		irn = get_intrinsic_address(mtp, op_Div, opmode, opmode, env);
740
		callDiv = new_rd_Call(dbg, block, mem, irn, 4, in, mtp);
741
		set_irn_pinned(callDiv, get_irn_pinned(node));
742
		resDiv = new_r_Proj(block, callDiv, mode_T, pn_Call_T_result);
Michael Beck's avatar
BugFix:    
Michael Beck committed
743
	}  /* if */
744
745
	if (flags & 2) {
		if (flags & 1)
746
			mem = new_r_Proj(block, callDiv, mode_M, pn_Call_M);
Michael Beck's avatar
Michael Beck committed
747
		opmode = get_irn_op_mode(node);
Matthias Braun's avatar
Matthias Braun committed
748
		irn = get_intrinsic_address(mtp, op_Mod, opmode, opmode, env);
749
		callMod = new_rd_Call(dbg, block, mem, irn, 4, in, mtp);
750
		set_irn_pinned(callMod, get_irn_pinned(node));
751
		resMod = new_r_Proj(block, callMod, mode_T, pn_Call_T_result);
Michael Beck's avatar
BugFix:    
Michael Beck committed
752
	}  /* if */
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768

	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);
769
770
			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);
771
772
773
			break;
		case pn_DivMod_res_mod:   /* Result of Mod. */
			idx = get_irn_idx(proj);
774
775
			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);
776
777
778
			break;
		default:
			assert(0 && "unexpected Proj number");
Michael Beck's avatar
BugFix:    
Michael Beck committed
779
		}  /* switch */
780
781
782
		/* 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
783
	}  /* for */
784
}  /* lower_DivMod */
785
786
787
788
789
790
791
792
793
794
795
796

/**
 * 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;
797
	ir_graph *irg;
798
799
800
801
802
803
804
805
806
807
	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
808
	}  /* if */
809
810
811
812
813
814
815
816
817
818
819
820

	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
821
	}  /* if */
822
823
824
825

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

826
	dbg   = get_irn_dbg_info(node);
827
	block = get_nodes_block(node);
828
	irg   = current_ir_graph;
829
830

	mtp = mode_is_signed(mode) ? binop_tp_s : binop_tp_u;
Matthias Braun's avatar
Matthias Braun committed
831
	irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, env);
832
	irn = new_rd_Call(dbg, block, get_irg_no_mem(current_ir_graph),
833
834
		irn, 4, in, mtp);
	set_irn_pinned(irn, get_irn_pinned(node));
835
	irn = new_r_Proj(block, irn, mode_T, pn_Call_T_result);
836
837
838

	idx = get_irn_idx(node);
	assert(idx < env->n_entries);
839
840
	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);
841
}  /* lower_Binop */
842

Christian Würdig's avatar
Christian Würdig committed
843
844
845
846
847
848
849
850
851
852
853
/**
 * 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;
854
	ir_graph *irg;
Christian Würdig's avatar
Christian Würdig committed
855
856
857
858
859
860
861
862
863
864
	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
865
	}  /* if */
Christian Würdig's avatar
Christian Würdig committed
866
867
868
869
870
871
872
873
874

	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);
875
	irg  = current_ir_graph;
Christian Würdig's avatar
Christian Würdig committed
876
877

	mtp = mode_is_signed(mode) ? shiftop_tp_s : shiftop_tp_u;
Matthias Braun's avatar
Matthias Braun committed
878
	irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, env);
879
	irn = new_rd_Call(dbg, block, get_irg_no_mem(current_ir_graph),
Christian Würdig's avatar
Christian Würdig committed
880
881
		irn, 3, in, mtp);
	set_irn_pinned(irn, get_irn_pinned(node));
882
	irn = new_r_Proj(block, irn, mode_T, pn_Call_T_result);
Christian Würdig's avatar
Christian Würdig committed
883
884
885

	idx = get_irn_idx(node);
	assert(idx < env->n_entries);
886
887
	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);
888
}  /* lower_Shiftop */
Christian Würdig's avatar
Christian Würdig committed
889

Michael Beck's avatar
Michael Beck committed
890
891
892
893
/**
 * Translate a Shr and handle special cases.
 */
static void lower_Shr(ir_node *node, ir_mode *mode, lower_env_t *env) {
894
895
	ir_node  *right = get_Shr_right(node);
	ir_graph *irg = current_ir_graph;
Michael Beck's avatar
Michael Beck committed
896
897
898
899
900

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

		if (tarval_is_long(tv) &&
901
		    get_tarval_long(tv) >= (long)get_mode_size_bits(mode)) {
Michael Beck's avatar
Michael Beck committed
902
903
			ir_node *block = get_nodes_block(node);
			ir_node *left = get_Shr_left(node);
904
905
			ir_node *c;
			long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
Michael Beck's avatar
Michael Beck committed
906
907
908
909
910
			int idx = get_irn_idx(left);

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

911
			if (shf_cnt > 0) {
912
				c = new_r_Const_long(irg, env->params->low_unsigned, shf_cnt);
913
				env->entries[idx]->low_word = new_r_Shr(block, left, c, mode);
Michael Beck's avatar
BugFix:    
Michael Beck committed
914
			} else {
915
				env->entries[idx]->low_word = left;
Michael Beck's avatar
BugFix:    
Michael Beck committed
916
			}  /* if */
917
			env->entries[idx]->high_word = new_r_Const(irg, get_mode_null(mode));
Michael Beck's avatar
Michael Beck committed
918
919

			return;
Michael Beck's avatar
BugFix:    
Michael Beck committed
920
921
		}  /* if */
	}  /* if */
Michael Beck's avatar
Michael Beck committed
922
	lower_Shiftop(node, mode, env);
923
}  /* lower_Shr */
Michael Beck's avatar
Michael Beck committed
924
925
926
927
928

/**
 * Translate a Shl and handle special cases.
 */
static void lower_Shl(ir_node *node, ir_mode *mode, lower_env_t *env) {
929
930
	ir_node  *right = get_Shl_right(node);
	ir_graph *irg = current_ir_graph;
Michael Beck's avatar
Michael Beck committed
931
932
933
934
935

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

		if (tarval_is_long(tv) &&
936
		    get_tarval_long(tv) >= (long)get_mode_size_bits(mode)) {
937
			ir_mode *mode_l;
Michael Beck's avatar
Michael Beck committed
938
939
			ir_node *block = get_nodes_block(node);
			ir_node *left = get_Shl_left(node);
940
941
			ir_node *c;
			long shf_cnt = get_tarval_long(tv) - get_mode_size_bits(mode);
Michael Beck's avatar
Michael Beck committed
942
943
			int idx = get_irn_idx(left);

944
			left = new_r_Conv(block, env->entries[idx]->low_word, mode);
Michael Beck's avatar
Michael Beck committed
945
946
			idx = get_irn_idx(node);

947
			mode_l = env->params->low_unsigned;
948
			if (shf_cnt > 0) {
949
				c = new_r_Const_long(irg, mode_l, shf_cnt);
950
				env->entries[idx]->high_word = new_r_Shl(block, left, c, mode);
Michael Beck's avatar
BugFix:    
Michael Beck committed
951
			} else {
952
				env->entries[idx]->high_word = left;
Michael Beck's avatar
BugFix:    
Michael Beck committed
953
			}  /* if */
954
			env->entries[idx]->low_word  = new_r_Const(irg, get_mode_null(mode_l));
Michael Beck's avatar
Michael Beck committed
955
956

			return;
Michael Beck's avatar
BugFix:    
Michael Beck committed
957
958
		}  /* if */
	}  /* if */
Michael Beck's avatar
Michael Beck committed
959
	lower_Shiftop(node, mode, env);
960
}  /* lower_Shl */
Michael Beck's avatar
Michael Beck committed
961
962
963
964
965

/**
 * Translate a Shrs and handle special cases.
 */
static void lower_Shrs(ir_node *node, ir_mode *mode, lower_env_t *env) {
966
967
	ir_node  *right = get_Shrs_right(node);
	ir_graph *irg = current_ir_graph;
Michael Beck's avatar
Michael Beck committed
968
969
970
971
972

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

		if (tarval_is_long(tv) &&
973
		    get_tarval_long(tv) >= (long)get_mode_size_bits(mode)) {
974
975
976
977
			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);
978
			ir_mode *mode_l;
979
			ir_node *low;
Michael Beck's avatar
Michael Beck committed
980
981
982
983
984
			ir_node *c;

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

985
			mode_l = env->params->low_unsigned;
986
			if (shf_cnt > 0) {
987
				c   = new_r_Const_long(irg, mode_l, shf_cnt);
988
				low = new_r_Shrs(block, left, c, mode);
Michael Beck's avatar
BugFix:    
Michael Beck committed
989
			} else {
990
				low = left;
Michael Beck's avatar
BugFix:    
Michael Beck committed
991
			}  /* if */
992
			/* low word is expected to have mode_l */
993
			env->entries[idx]->low_word = new_r_Conv(block, low, mode_l);
994

995
			c = new_r_Const_long(irg, mode_l, get_mode_size_bits(mode) - 1);
996
			env->entries[idx]->high_word = new_r_Shrs(block, left, c, mode);
Michael Beck's avatar
Michael Beck committed
997
998

			return;
Michael Beck's avatar
BugFix:    
Michael Beck committed
999
1000
		}  /* if */
	}  /* if */
Michael Beck's avatar
Michael Beck committed
1001
	lower_Shiftop(node, mode, env);
1002
}  /* lower_Shrs */
Michael Beck's avatar
Michael Beck committed
1003
1004

/**
Michael Beck's avatar
Michael Beck committed
1005
 * Rebuild Rotl nodes into Or(Shl, Shr) and prepare all nodes.
Michael Beck's avatar
Michael Beck committed
1006
 */
Michael Beck's avatar
Michael Beck committed
1007
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
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);
1035
				shl   = new_rd_Shl(dbg, block, left, right, omode);
Michael Beck's avatar
Michael Beck committed
1036
1037
				rmode = get_irn_mode(right);
				c     = new_Const_long(rmode, get_mode_size_bits(omode));
1038
1039
				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
1040
1041
1042
1043

				/* optimization must be switched off here, or we will get the Rotl back */
				save_optimization_state(&state);
				set_opt_algebraic_simplification(0);
1044
				or = new_rd_Or(dbg, block, shl, shr, omode);
Michael Beck's avatar
Michael Beck committed
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
				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
1060

Michael Beck's avatar
Michael Beck committed
1061
1062
1063
1064
1065
1066
1067
1068
/**
 * 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
1069
1070
	(void) right;
	(void) mode;
Michael Beck's avatar
Michael Beck committed
1071

Michael Beck's avatar
Michael Beck committed
1072
1073
1074
	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
1075

Michael Beck's avatar
Michael Beck committed
1076
1077
1078
	l = env->entries[idx]->low_word;
	h = env->entries[idx]->high_word;
	idx = get_irn_idx(node);
Michael Beck's avatar
Michael Beck committed
1079

Michael Beck's avatar
Michael Beck committed
1080
1081
1082
	env->entries[idx]->low_word  = h;
	env->entries[idx]->high_word = l;
}  /* lower_Rotl */
1083

1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
/**
 * 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
1105
	}  /* if */
1106
1107
1108
1109

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

1110
	dbg   = get_irn_dbg_info(node);
1111
1112
1113
	block = get_nodes_block(node);

	mtp = mode_is_signed(mode) ? unop_tp_s : unop_tp_u;
Matthias Braun's avatar
Matthias Braun committed
1114
	irn = get_intrinsic_address(mtp, get_irn_op(node), mode, mode, env);
1115
	irn = new_rd_Call(dbg, block, get_irg_no_mem(current_ir_graph),
1116
1117
		irn, 2, in, mtp);
	set_irn_pinned(irn, get_irn_pinned(node));
1118
	irn = new_r_Proj(block, irn, mode_T, pn_Call_T_result);
1119
1120
1121

	idx = get_irn_idx(node);
	assert(idx < env->n_entries);
1122
1123
	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);
1124
}  /* lower_Unop */
1125
1126
1127
1128
1129
1130
1131

/**
 * Translate a logical Binop.
 *
 * Create two logical Binops.
 */
static void lower_Binop_logical(ir_node *node, ir_mode *mode, lower_env_t *env,
1132
								ir_node *(*constr_rd)(dbg_info *db, ir_node *block, ir_node *op1, ir_node *op2, ir_mode *mode) ) {
1133
1134
1135
1136
	ir_node  *block, *irn;
	ir_node  *lop_l, *lop_h, *rop_l, *rop_h;
	dbg_info *dbg;
	int      idx;
1137
	ir_graph *irg;
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
	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
1148
	}  /* if */
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160

	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
1161
	}  /* if */
1162
1163
1164
1165
1166
1167
1168
1169
1170

	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);
1171
	irg = current_ir_graph;