ia32_intrinsics.c 27.3 KB
Newer Older
Christian Würdig's avatar
Christian Würdig committed
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
/*
 * Copyright (C) 1995-2007 University of Karlsruhe.  All right reserved.
 *
 * 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.
 */

20
/**
Christian Würdig's avatar
Christian Würdig committed
21
22
23
24
25
 * @file
 * @brief       This file implements the mapping of 64Bit intrinsic
 *              functions to code or library calls.
 * @author      Michael Beck
 * @version     $Id$
26
 */
27
28
29
30
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

31
#include "irgmod.h"
32
33
34
35
#include "irop.h"
#include "irnode_t.h"
#include "ircons.h"
#include "irprog_t.h"
36
#include "lowering.h"
37
38
#include "array.h"

39
#include "ia32_new_nodes.h"
40
41
#include "bearch_ia32_t.h"
#include "gen_ia32_regalloc_if.h"
42

43
44
45
46
/** The array of all intrinsics that must be mapped. */
static i_record *intrinsics;

/** An array to cache all entities */
47
static ir_entity *i_ents[iro_MaxOpcode];
48

49
/*
50
51
52
53
54
 * Maps all intrinsic calls that the backend support
 * and map all instructions the backend did not support
 * to runtime calls.
 */
void ia32_handle_intrinsics(void) {
Michael Beck's avatar
Michael Beck committed
55
56
57
	if (intrinsics && ARR_LEN(intrinsics) > 0) {
		lower_intrinsics(intrinsics, ARR_LEN(intrinsics), /*part_block_used=*/1);
	}
58
59
60
61
62
63
64
}

#define BINOP_Left_Low   0
#define BINOP_Left_High  1
#define BINOP_Right_Low  2
#define BINOP_Right_High 3

65
66
67
/**
 * Replace a call be a tuple of l_res, h_res.
 */
68
69
static void resolve_call(ir_node *call, ir_node *l_res, ir_node *h_res, ir_graph *irg, ir_node *block) {
	ir_node *res, *in[2];
Christoph Mallon's avatar
Christoph Mallon committed
70
71
	ir_node *bad   = get_irg_bad(irg);
	ir_node *nomem = get_irg_no_mem(irg);
72
73
74

	in[0] = l_res;
	in[1] = h_res;
75
	res = new_r_Tuple(irg, block, h_res == NULL ? 1 : 2, in);
76
77

	turn_into_tuple(call, pn_Call_max);
Christoph Mallon's avatar
Christoph Mallon committed
78
	set_Tuple_pred(call, pn_Call_M_regular,        nomem);
Matthias Braun's avatar
Matthias Braun committed
79
80
81
82
	/* Matze: the new_r_Jmp here sometimes CSEs and then bad things happen
	 * (in movgen.c from 186.crafty for example) I don't know why it is here
	 * and if this fix is correct... */
	/*set_Tuple_pred(call, pn_Call_X_regular,        new_r_Jmp(irg, block));*/
Christoph Mallon's avatar
Christoph Mallon committed
83
84
	set_Tuple_pred(call, pn_Call_X_regular,        bad);
	set_Tuple_pred(call, pn_Call_X_except,         bad);
85
	set_Tuple_pred(call, pn_Call_T_result,         res);
Christoph Mallon's avatar
Christoph Mallon committed
86
87
	set_Tuple_pred(call, pn_Call_M_except,         nomem);
	set_Tuple_pred(call, pn_Call_P_value_res_base, bad);
88
89
90
91
92
93
}

/**
 * Map an Add (a_l, a_h, b_l, b_h)
 */
static int map_Add(ir_node *call, void *ctx) {
94
95
96
97
98
99
100
101
102
103
104
105
106
107
	ir_graph *irg        = current_ir_graph;
	dbg_info *dbg        = get_irn_dbg_info(call);
	ir_node  *block      = get_nodes_block(call);
	ir_node  **params    = get_Call_param_arr(call);
	ir_type  *method     = get_Call_type(call);
	ir_node  *a_l        = params[BINOP_Left_Low];
	ir_node  *a_h        = params[BINOP_Left_High];
	ir_node  *b_l        = params[BINOP_Right_Low];
	ir_node  *b_h        = params[BINOP_Right_High];
	ir_mode  *l_mode     = get_type_mode(get_method_res_type(method, 0));
	ir_mode  *h_mode     = get_type_mode(get_method_res_type(method, 1));
	ir_mode  *mode_flags = ia32_reg_classes[CLASS_ia32_flags].mode;
	ir_node  *add_low, *add_high, *flags;
	ir_node  *l_res, *h_res;
Matthias Braun's avatar
Matthias Braun committed
108
	(void) ctx;
109
110
111

	/* l_res = a_l + b_l */
	/* h_res = a_h + b_h + carry */
112

113
114
115
116
117
118
	add_low  = new_rd_ia32_l_Add(dbg, irg, block, a_l, b_l, mode_T);
	flags    = new_r_Proj(irg, block, add_low, mode_flags, pn_ia32_flags);
	add_high = new_rd_ia32_l_Adc(dbg, irg, block, a_h, b_h, flags, h_mode);

	l_res = new_r_Proj(irg, block, add_low, l_mode, pn_ia32_res);
	h_res = add_high;
119

120
	resolve_call(call, l_res, h_res, irg, block);
121
122
123
124
125
126
	return 1;
}

/**
 * Map a Sub (a_l, a_h, b_l, b_h)
 */
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
static int map_Sub(ir_node *call, void *ctx)
{
	ir_graph *irg        = current_ir_graph;
	dbg_info *dbg        = get_irn_dbg_info(call);
	ir_node  *block      = get_nodes_block(call);
	ir_node  **params    = get_Call_param_arr(call);
	ir_type  *method     = get_Call_type(call);
	ir_node  *a_l        = params[BINOP_Left_Low];
	ir_node  *a_h        = params[BINOP_Left_High];
	ir_node  *b_l        = params[BINOP_Right_Low];
	ir_node  *b_h        = params[BINOP_Right_High];
	ir_mode  *l_mode     = get_type_mode(get_method_res_type(method, 0));
	ir_mode  *h_mode     = get_type_mode(get_method_res_type(method, 1));
	ir_mode  *mode_flags = ia32_reg_classes[CLASS_ia32_flags].mode;
	ir_node  *sub_low, *sub_high, *flags;
	ir_node  *l_res, *h_res;
Matthias Braun's avatar
Matthias Braun committed
143
	(void) ctx;
144
145

	/* l_res = a_l - b_l */
146
	/* h_res = a_h - b_h - carry */
147

148
149
150
151
152
153
	sub_low  = new_rd_ia32_l_Sub(dbg, irg, block, a_l, b_l, mode_T);
	flags    = new_r_Proj(irg, block, sub_low, mode_flags, pn_ia32_flags);
	sub_high = new_rd_ia32_l_Sbb(dbg, irg, block, a_h, b_h, flags, h_mode);

	l_res = new_r_Proj(irg, block, sub_low, l_mode, pn_ia32_res);
	h_res = sub_high;
154

155
	resolve_call(call, l_res, h_res, irg, block);
156
157
158
	return 1;
}

159
160
161
162
/**
 * Map a Shl (a_l, a_h, count)
 */
static int map_Shl(ir_node *call, void *ctx) {
163
164
165
166
167
168
169
170
171
	ir_graph *irg     = current_ir_graph;
	dbg_info *dbg     = get_irn_dbg_info(call);
	ir_node  *block   = get_nodes_block(call);
	ir_node  **params = get_Call_param_arr(call);
	ir_type  *method  = get_Call_type(call);
	ir_node  *a_l     = params[BINOP_Left_Low];
	ir_node  *a_h     = params[BINOP_Left_High];
	ir_node  *cnt     = params[BINOP_Right_Low];
	ir_mode  *l_mode  = get_type_mode(get_method_res_type(method, 0));
172
	ir_mode  *h_mode  = get_type_mode(get_method_res_type(method, 1));
Michael Beck's avatar
Michael Beck committed
173
174
	ir_mode  *c_mode;
	ir_node  *l_res, *h_res, *irn, *cond, *upper, *n_block, *l1, *l2, *h1, *h2, *in[2];
Matthias Braun's avatar
Matthias Braun committed
175
	(void) ctx;
176

Michael Beck's avatar
Michael Beck committed
177
178
179
180
181
182
183
	if (is_Const(cnt)) {
		/* the shift count is a const, create better code */
		tarval *tv = get_Const_tarval(cnt);

		if (tarval_cmp(tv, new_tarval_from_long(32, l_mode)) & (pn_Cmp_Gt|pn_Cmp_Eq)) {
			/* simplest case: shift only the lower bits. Note that there is no
			   need to reduce the constant here, this is done by the hardware.  */
184
185
			ir_node *conv = new_rd_Conv(dbg, irg, block, a_l, h_mode);
			h_res = new_rd_Shl(dbg, irg, block, conv, cnt, h_mode);
Michael Beck's avatar
Michael Beck committed
186
187
			l_res = new_rd_Const(dbg, irg, block, l_mode, get_mode_null(l_mode));

188
189
		} else {
			/* h_res = SHLD a_h, a_l, cnt */
190
			h_res = new_rd_ia32_l_ShlD(dbg, irg, block, a_h, a_l, cnt, h_mode);
191
192
193

			/* l_res = SHL a_l, cnt */
			l_res = new_rd_ia32_l_ShlDep(dbg, irg, block, a_l, cnt, h_res, l_mode);
Michael Beck's avatar
Michael Beck committed
194
		}
195
196
197

		resolve_call(call, l_res, h_res, irg, block);
		return 1;
Michael Beck's avatar
Michael Beck committed
198
199
200
201
202
	}

	part_block(call);
	upper = get_nodes_block(call);

203
	/* h_res = SHLD a_h, a_l, cnt */
204
	h1 = new_rd_ia32_l_ShlD(dbg, irg, upper, a_h, a_l, cnt, h_mode);
205
206

	/* l_res = SHL a_l, cnt */
Michael Beck's avatar
Michael Beck committed
207
208
209
210
211
212
213
214
215
216
217
218
219
220
	l1 = new_rd_ia32_l_ShlDep(dbg, irg, upper, a_l, cnt, h1, l_mode);

	c_mode = get_irn_mode(cnt);
	irn    = new_r_Const_long(irg, upper, c_mode, 32);
	irn    = new_rd_And(dbg, irg, upper, cnt, irn, c_mode);
	irn    = new_rd_Cmp(dbg, irg, upper, irn, new_r_Const(irg, upper, c_mode, get_mode_null(c_mode)));
	irn    = new_r_Proj(irg, upper, irn, mode_b, pn_Cmp_Eq);
	cond   = new_rd_Cond(dbg, irg, upper, irn);

	in[0]  = new_r_Proj(irg, upper, cond, mode_X, pn_Cond_true);
	in[1]  = new_r_Proj(irg, upper, cond, mode_X, pn_Cond_false);

	/* the block for cnt >= 32 */
	n_block = new_rd_Block(dbg, irg, 1, &in[1]);
221
	h2      = new_rd_Conv(dbg, irg, n_block, l1, h_mode);
Michael Beck's avatar
Michael Beck committed
222
223
224
225
226
227
228
229
230
231
232
233
	l2      = new_r_Const(irg, n_block, l_mode, get_mode_null(l_mode));
	in[1]   = new_r_Jmp(irg, n_block);

	set_irn_in(block, 2, in);

	in[0] = l1;
	in[1] = l2;
	l_res = new_r_Phi(irg, block, 2, in, l_mode);
	set_irn_link(block, l_res);

	in[0] = h1;
	in[1] = h2;
234
	h_res = new_r_Phi(irg, block, 2, in, h_mode);
Michael Beck's avatar
Michael Beck committed
235
236
237
238
239
240
241
	set_irn_link(l_res, h_res);
	set_irn_link(h_res, NULL);

	/* move it down */
	set_nodes_block(call, block);
	for (irn = get_irn_link(call); irn != NULL; irn = get_irn_link(irn))
		set_nodes_block(irn, block);
242
243
244
245
246
247
248
249
250

	resolve_call(call, l_res, h_res, irg, block);
	return 1;
}

/**
 * Map a Shr (a_l, a_h, count)
 */
static int map_Shr(ir_node *call, void *ctx) {
251
252
253
254
255
256
257
258
259
	ir_graph *irg     = current_ir_graph;
	dbg_info *dbg     = get_irn_dbg_info(call);
	ir_node  *block   = get_nodes_block(call);
	ir_node  **params = get_Call_param_arr(call);
	ir_type  *method  = get_Call_type(call);
	ir_node  *a_l     = params[BINOP_Left_Low];
	ir_node  *a_h     = params[BINOP_Left_High];
	ir_node  *cnt     = params[BINOP_Right_Low];
	ir_mode  *l_mode  = get_type_mode(get_method_res_type(method, 0));
260
	ir_mode  *h_mode  = get_type_mode(get_method_res_type(method, 1));
Michael Beck's avatar
Michael Beck committed
261
262
	ir_mode  *c_mode;
	ir_node  *l_res, *h_res, *irn, *cond, *upper, *n_block, *l1, *l2, *h1, *h2, *in[2];
Matthias Braun's avatar
Matthias Braun committed
263
	(void) ctx;
264

Michael Beck's avatar
Michael Beck committed
265
266
267
268
269
270
271
	if (is_Const(cnt)) {
		/* the shift count is a const, create better code */
		tarval *tv = get_Const_tarval(cnt);

		if (tarval_cmp(tv, new_tarval_from_long(32, l_mode)) & (pn_Cmp_Gt|pn_Cmp_Eq)) {
			/* simplest case: shift only the higher bits. Note that there is no
			   need to reduce the constant here, this is done by the hardware.  */
272
273
274
			ir_node *conv = new_rd_Conv(dbg, irg, block, a_h, l_mode);
			h_res = new_rd_Const(dbg, irg, block, h_mode, get_mode_null(h_mode));
			l_res = new_rd_Shr(dbg, irg, block, conv, cnt, l_mode);
275
276
277
		} else {
			/* l_res = SHRD a_h:a_l, cnt */
			l_res = new_rd_ia32_l_ShrD(dbg, irg, block, a_l, a_h, cnt, l_mode);
Michael Beck's avatar
Michael Beck committed
278

279
			/* h_res = SHR a_h, cnt */
280
			h_res = new_rd_ia32_l_ShrDep(dbg, irg, block, a_h, cnt, l_res, h_mode);
Michael Beck's avatar
Michael Beck committed
281
		}
282
283
		resolve_call(call, l_res, h_res, irg, block);
		return 1;
Michael Beck's avatar
Michael Beck committed
284
285
286
287
288
	}

	part_block(call);
	upper = get_nodes_block(call);

289
	/* l_res = SHRD a_h:a_l, cnt */
Michael Beck's avatar
Michael Beck committed
290
	l1 = new_rd_ia32_l_ShrD(dbg, irg, upper, a_l, a_h, cnt, l_mode);
291

292
	/* h_res = SHR a_h, cnt */
293
	h1 = new_rd_ia32_l_ShrDep(dbg, irg, upper, a_h, cnt, l1, h_mode);
Michael Beck's avatar
Michael Beck committed
294
295
296
297
298
299
300
301
302
303
304
305
306

	c_mode = get_irn_mode(cnt);
	irn    = new_r_Const_long(irg, upper, c_mode, 32);
	irn    = new_rd_And(dbg, irg, upper, cnt, irn, c_mode);
	irn    = new_rd_Cmp(dbg, irg, upper, irn, new_r_Const(irg, upper, c_mode, get_mode_null(c_mode)));
	irn    = new_r_Proj(irg, upper, irn, mode_b, pn_Cmp_Eq);
	cond   = new_rd_Cond(dbg, irg, upper, irn);

	in[0]  = new_r_Proj(irg, upper, cond, mode_X, pn_Cond_true);
	in[1]  = new_r_Proj(irg, upper, cond, mode_X, pn_Cond_false);

	/* the block for cnt >= 32 */
	n_block = new_rd_Block(dbg, irg, 1, &in[1]);
307
308
	l2      = new_rd_Conv(dbg, irg, n_block, h1, l_mode);
	h2      = new_r_Const(irg, n_block, l_mode, get_mode_null(h_mode));
Michael Beck's avatar
Michael Beck committed
309
310
311
312
313
314
315
316
317
318
319
	in[1]   = new_r_Jmp(irg, n_block);

	set_irn_in(block, 2, in);

	in[0] = l1;
	in[1] = l2;
	l_res = new_r_Phi(irg, block, 2, in, l_mode);
	set_irn_link(block, l_res);

	in[0] = h1;
	in[1] = h2;
320
	h_res = new_r_Phi(irg, block, 2, in, h_mode);
Michael Beck's avatar
Michael Beck committed
321
322
323
324
325
326
327
	set_irn_link(l_res, h_res);
	set_irn_link(h_res, NULL);

	/* move it down */
	set_nodes_block(call, block);
	for (irn = get_irn_link(call); irn != NULL; irn = get_irn_link(irn))
		set_nodes_block(irn, block);
328
329
330
331
332
333
334
335
336

	resolve_call(call, l_res, h_res, irg, block);
	return 1;
}

/**
 * Map a Shrs (a_l, a_h, count)
 */
static int map_Shrs(ir_node *call, void *ctx) {
Michael Beck's avatar
Michael Beck committed
337
338
339
340
341
342
343
344
345
	ir_graph *irg     = current_ir_graph;
	dbg_info *dbg     = get_irn_dbg_info(call);
	ir_node  *block   = get_nodes_block(call);
	ir_node  **params = get_Call_param_arr(call);
	ir_type  *method  = get_Call_type(call);
	ir_node  *a_l     = params[BINOP_Left_Low];
	ir_node  *a_h     = params[BINOP_Left_High];
	ir_node  *cnt     = params[BINOP_Right_Low];
	ir_mode  *l_mode  = get_type_mode(get_method_res_type(method, 0));
346
	ir_mode  *h_mode  = get_type_mode(get_method_res_type(method, 1));
Michael Beck's avatar
Michael Beck committed
347
348
	ir_mode  *c_mode;
	ir_node  *l_res, *h_res, *irn, *cond, *upper, *n_block, *l1, *l2, *h1, *h2, *in[2];
Matthias Braun's avatar
Matthias Braun committed
349
	(void) ctx;
350

Michael Beck's avatar
Michael Beck committed
351
352
353
354
355
356
357
	if (is_Const(cnt)) {
		/* the shift count is a const, create better code */
		tarval *tv = get_Const_tarval(cnt);

		if (tarval_cmp(tv, new_tarval_from_long(32, l_mode)) & (pn_Cmp_Gt|pn_Cmp_Eq)) {
			/* simplest case: shift only the higher bits. Note that there is no
			   need to reduce the constant here, this is done by the hardware.  */
358
359
			ir_node *conv    = new_rd_Conv(dbg, irg, block, a_h, l_mode);
			ir_mode *c_mode  = get_irn_mode(cnt);
Michael Beck's avatar
Michael Beck committed
360

361
362
			h_res = new_rd_Shrs(dbg, irg, block, a_h, new_r_Const_long(irg, block, c_mode, 31), h_mode);
			l_res = new_rd_Shrs(dbg, irg, block, conv, cnt, l_mode);
363
364
365
		} else {
			/* l_res = SHRD a_h:a_l, cnt */
			l_res = new_rd_ia32_l_ShrD(dbg, irg, block, a_l, a_h, cnt, l_mode);
Michael Beck's avatar
Michael Beck committed
366

367
			/* h_res = SAR a_h, cnt */
368
			h_res = new_rd_ia32_l_SarDep(dbg, irg, block, a_h, cnt, l_res, h_mode);
Michael Beck's avatar
Michael Beck committed
369
		}
370
371
		resolve_call(call, l_res, h_res, irg, block);
		return 1;
Michael Beck's avatar
Michael Beck committed
372
373
374
375
376
	}

	part_block(call);
	upper = get_nodes_block(call);

377
	/* l_res = SHRD a_h:a_l, cnt */
Michael Beck's avatar
Michael Beck committed
378
	l1 = new_rd_ia32_l_ShrD(dbg, irg, upper, a_l, a_h, cnt, l_mode);
379
380

	/* h_res = SAR a_h, cnt */
381
	h1 = new_rd_ia32_l_SarDep(dbg, irg, upper, a_h, cnt, l1, h_mode);
Michael Beck's avatar
Michael Beck committed
382
383
384
385
386
387
388
389
390
391
392
393
394

	c_mode = get_irn_mode(cnt);
	irn    = new_r_Const_long(irg, upper, c_mode, 32);
	irn    = new_rd_And(dbg, irg, upper, cnt, irn, c_mode);
	irn    = new_rd_Cmp(dbg, irg, upper, irn, new_r_Const(irg, upper, c_mode, get_mode_null(c_mode)));
	irn    = new_r_Proj(irg, upper, irn, mode_b, pn_Cmp_Eq);
	cond   = new_rd_Cond(dbg, irg, upper, irn);

	in[0]  = new_r_Proj(irg, upper, cond, mode_X, pn_Cond_true);
	in[1]  = new_r_Proj(irg, upper, cond, mode_X, pn_Cond_false);

	/* the block for cnt >= 32 */
	n_block = new_rd_Block(dbg, irg, 1, &in[1]);
395
396
	l2      = new_rd_Conv(dbg, irg, n_block, h1, l_mode);
	h2      = new_rd_Shrs(dbg, irg, n_block, a_h, new_r_Const_long(irg, block, c_mode, 31), h_mode);
Michael Beck's avatar
Michael Beck committed
397
398
399
400
401
402
403
404
405
406
407
	in[1]   = new_r_Jmp(irg, n_block);

	set_irn_in(block, 2, in);

	in[0] = l1;
	in[1] = l2;
	l_res = new_r_Phi(irg, block, 2, in, l_mode);
	set_irn_link(block, l_res);

	in[0] = h1;
	in[1] = h2;
408
	h_res = new_r_Phi(irg, block, 2, in, h_mode);
Michael Beck's avatar
Michael Beck committed
409
410
411
412
413
414
415
	set_irn_link(l_res, h_res);
	set_irn_link(h_res, NULL);

	/* move it down */
	set_nodes_block(call, block);
	for (irn = get_irn_link(call); irn != NULL; irn = get_irn_link(irn))
		set_nodes_block(irn, block);
416
417
418
419
420

	resolve_call(call, l_res, h_res, irg, block);
	return 1;
}

421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
static int is_sign_extend(ir_node *low, ir_node *high)
{
	if (is_Shrs(high)) {
		ir_node *high_l;
		ir_node *high_r;
		tarval  *shift_count;

		high_r = get_Shrs_right(high);
		if (!is_Const(high_r)) return 0;

		shift_count = get_Const_tarval(high_r);
		if (!tarval_is_long(shift_count))       return 0;
		if (get_tarval_long(shift_count) != 31) return 0;

		high_l = get_Shrs_left(high);

		if (is_Conv(low)    && get_Conv_op(low)    == high_l) return 1;
		if (is_Conv(high_l) && get_Conv_op(high_l) == low)    return 1;
	} else if (is_Const(low) && is_Const(high)) {
		tarval *tl = get_Const_tarval(low);
		tarval *th = get_Const_tarval(high);

		if (tarval_is_long(th) && tarval_is_long(tl)) {
			long l = get_tarval_long(tl);
			long h = get_tarval_long(th);

			return (h == 0  && l >= 0) || (h == -1 && l <  0);
		}
	}

	return 0;
}

454
455
456
457
/**
 * Map a Mul (a_l, a_h, b_l, b_h)
 */
static int map_Mul(ir_node *call, void *ctx) {
Michael Beck's avatar
Michael Beck committed
458
459
460
461
462
463
464
465
466
467
	ir_graph *irg     = current_ir_graph;
	dbg_info *dbg     = get_irn_dbg_info(call);
	ir_node  *block   = get_nodes_block(call);
	ir_node  **params = get_Call_param_arr(call);
	ir_type  *method  = get_Call_type(call);
	ir_node  *a_l     = params[BINOP_Left_Low];
	ir_node  *a_h     = params[BINOP_Left_High];
	ir_node  *b_l     = params[BINOP_Right_Low];
	ir_node  *b_h     = params[BINOP_Right_High];
	ir_mode  *l_mode  = get_type_mode(get_method_res_type(method, 0));
468
	ir_mode  *h_mode  = get_type_mode(get_method_res_type(method, 1));
469
	ir_node  *l_res, *h_res, *mul, *pEDX, *add;
Matthias Braun's avatar
Matthias Braun committed
470
	(void) ctx;
471
472
473
474
475
476
477
478
479
480

	/*
		EDX:EAX = a_l * b_l
		l_res   = EAX

		t1 = b_l * a_h
		t2 = t1 + EDX
		t3 = a_l * b_h
		h_res = t2 + t3
	*/
Michael Beck's avatar
Michael Beck committed
481

482
	/* handle the often used case of 32x32=64 mul */
483
484
485
486
487
488
	if (is_sign_extend(a_l, a_h) && is_sign_extend(b_l, b_h)) {
		mul   = new_rd_ia32_l_IMul(dbg, irg, block, a_l, b_l);
		h_res = new_rd_Proj(dbg, irg, block, mul, h_mode, pn_ia32_l_Mul_EDX);
		l_res = new_rd_Proj(dbg, irg, block, mul, l_mode, pn_ia32_l_Mul_EAX);

		goto end;
489
490
	}

491
	mul   = new_rd_ia32_l_Mul(dbg, irg, block, a_l, b_l);
492
	pEDX  = new_rd_Proj(dbg, irg, block, mul, h_mode, pn_ia32_l_Mul_EDX);
Michael Beck's avatar
Michael Beck committed
493
	l_res = new_rd_Proj(dbg, irg, block, mul, l_mode, pn_ia32_l_Mul_EAX);
494

495
496
497
498
499
500
	b_l   = new_rd_Conv(dbg, irg, block, b_l, h_mode);
	mul   = new_rd_Mul( dbg, irg, block, a_h, b_l, h_mode);
	add   = new_rd_Add( dbg, irg, block, mul, pEDX, h_mode);
	a_l   = new_rd_Conv(dbg, irg, block, a_l, h_mode);
	mul   = new_rd_Mul( dbg, irg, block, a_l, b_h, h_mode);
	h_res = new_rd_Add( dbg, irg, block, add, mul, h_mode);
501

502
end:
503
504
505
506
507
	resolve_call(call, l_res, h_res, irg, block);

	return 1;
}

508
509
510
511
/**
 * Map a Minus (a_l, a_h)
 */
static int map_Minus(ir_node *call, void *ctx) {
Michael Beck's avatar
Michael Beck committed
512
513
514
515
516
517
518
519
	ir_graph *irg     = current_ir_graph;
	dbg_info *dbg     = get_irn_dbg_info(call);
	ir_node  *block   = get_nodes_block(call);
	ir_node  **params = get_Call_param_arr(call);
	ir_type  *method  = get_Call_type(call);
	ir_node  *a_l     = params[BINOP_Left_Low];
	ir_node  *a_h     = params[BINOP_Left_High];
	ir_mode  *l_mode  = get_type_mode(get_method_res_type(method, 0));
520
	ir_mode  *h_mode  = get_type_mode(get_method_res_type(method, 1));
521
	ir_node  *l_res, *h_res, *res;
Matthias Braun's avatar
Matthias Braun committed
522
	(void) ctx;
523

524
	res   = new_rd_ia32_Minus64Bit(dbg, irg, block, a_l, a_h);
Michael Beck's avatar
Michael Beck committed
525
	l_res = new_r_Proj(irg, block, res, l_mode, pn_ia32_Minus64Bit_low_res);
526
	h_res = new_r_Proj(irg, block, res, h_mode, pn_ia32_Minus64Bit_high_res);
527
528
529
530
531
532

	resolve_call(call, l_res, h_res, irg, block);

	return 1;
}

533
534
535
536
/**
 * Map a Abs (a_l, a_h)
 */
static int map_Abs(ir_node *call, void *ctx) {
537
538
539
540
541
542
543
544
545
546
547
	ir_graph *irg        = current_ir_graph;
	dbg_info *dbg        = get_irn_dbg_info(call);
	ir_node  *block      = get_nodes_block(call);
	ir_node  **params    = get_Call_param_arr(call);
	ir_type  *method     = get_Call_type(call);
	ir_node  *a_l        = params[BINOP_Left_Low];
	ir_node  *a_h        = params[BINOP_Left_High];
	ir_mode  *l_mode     = get_type_mode(get_method_res_type(method, 0));
	ir_mode  *h_mode     = get_type_mode(get_method_res_type(method, 1));
	ir_mode  *mode_flags = ia32_reg_classes[CLASS_ia32_flags].mode;
	ir_node  *l_res, *h_res, *sign, *sub_l, *sub_h;
548
	ir_node  *sign_l;
549
550
	ir_node  *l_sub;
	ir_node  *flags;
Matthias Braun's avatar
Matthias Braun committed
551
	(void) ctx;
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566

	/*
		Code inspired by gcc output :) (although gcc doubles the
		operation for t1 as t2 and uses t1 for operations with low part
		and t2 for operations with high part which is actually unnecessary
		because t1 and t2 represent the same value)

		t1    = SHRS a_h, 31
		t2    = a_l ^ t1
		t3    = a_h ^ t1
		l_res = t2 - t1
		h_res = t3 - t1 - carry

	*/

Matthias Braun's avatar
Matthias Braun committed
567
	/* TODO: give a hint to the backend somehow to not create a cltd here... */
568
569
570
571
	sign   = new_rd_Shrs(dbg, irg, block, a_h, new_Const_long(l_mode, 31), h_mode);
	sign_l = new_rd_Conv(dbg, irg, block, sign, l_mode);
	sub_l  = new_rd_Eor(dbg, irg, block, a_l, sign_l, l_mode);
	sub_h  = new_rd_Eor(dbg, irg, block, a_h, sign,   h_mode);
572
573
574
575
576

	l_sub  = new_rd_ia32_l_Sub(dbg, irg, block, sub_l, sign_l, mode_T);
	l_res  = new_r_Proj(irg, block, l_sub, l_mode,     pn_ia32_res);
	flags  = new_r_Proj(irg, block, l_sub, mode_flags, pn_ia32_flags);
	h_res  = new_rd_ia32_l_Sbb(dbg, irg, block, sub_h, sign, flags, h_mode);
577
578
579
580
581
582

	resolve_call(call, l_res, h_res, irg, block);

	return 1;
}

583
#define ID(x) new_id_from_chars(x, sizeof(x)-1)
Christian Würdig's avatar
Christian Würdig committed
584

585
/**
586
 * Maps a Div. Change into a library call
587
 */
588
static int map_Div(ir_node *call, void *ctx) {
589
	ia32_intrinsic_env_t *env = ctx;
Michael Beck's avatar
Michael Beck committed
590
	ir_type   *method    = get_Call_type(call);
591
	ir_mode   *h_mode    = get_type_mode(get_method_res_type(method, 1));
592
593
594
	ir_node   *ptr;
	ir_entity *ent;
	symconst_symbol sym;
595

596
	if (mode_is_signed(h_mode)) {
597
598
599
600
601
602
603
604
605
		/* 64bit signed Division */
		ent = env->divdi3;
		if (ent == NULL) {
			/* create library entity */
			ent = env->divdi3 = new_entity(get_glob_type(), ID("__divdi3"), method);
			set_entity_visibility(ent, visibility_external_allocated);
			set_entity_ld_ident(ent, ID("__divdi3"));
		}
	} else {
606
		/* 64bit unsigned Division */
607
608
609
610
611
612
613
		ent = env->udivdi3;
		if (ent == NULL) {
			/* create library entity */
			ent = env->udivdi3 = new_entity(get_glob_type(), ID("__udivdi3"), method);
			set_entity_visibility(ent, visibility_external_allocated);
			set_entity_ld_ident(ent, ID("__udivdi3"));
		}
614
	}
615
616
617
	sym.entity_p = ent;
	ptr = get_Call_ptr(call);
	set_SymConst_symbol(ptr, sym);
618
619
620
	return 1;
}

621
622
623
/**
 * Maps a Mod. Change into a library call
 */
624
static int map_Mod(ir_node *call, void *ctx) {
625
626
	ia32_intrinsic_env_t *env = ctx;
	ir_type   *method    = get_Call_type(call);
627
	ir_mode   *h_mode    = get_type_mode(get_method_res_type(method, 0));
628
629
630
631
	ir_node   *ptr;
	ir_entity *ent;
	symconst_symbol sym;

632
	if (mode_is_signed(h_mode)) {
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
		/* 64bit signed Modulo */
		ent = env->moddi3;
		if (ent == NULL) {
			/* create library entity */
			ent = env->moddi3 = new_entity(get_glob_type(), ID("__moddi3"), method);
			set_entity_visibility(ent, visibility_external_allocated);
			set_entity_ld_ident(ent, ID("__moddi3"));
		}
	} else {
		/* 64bit signed Modulo */
		ent = env->umoddi3;
		if (ent == NULL) {
			/* create library entity */
			ent = env->umoddi3 = new_entity(get_glob_type(), ID("__umoddi3"), method);
			set_entity_visibility(ent, visibility_external_allocated);
			set_entity_ld_ident(ent, ID("__umoddi3"));
		}
	}
	sym.entity_p = ent;
	ptr = get_Call_ptr(call);
	set_SymConst_symbol(ptr, sym);
	return 1;
655
656
657
}

/**
658
 * Maps a Conv.
659
660
661
 */
static int map_Conv(ir_node *call, void *ctx) {
	ia32_intrinsic_env_t *env = ctx;
662
663
664
665
666
667
668
669
670
671
672
	ir_graph  *irg        = current_ir_graph;
	dbg_info  *dbg        = get_irn_dbg_info(call);
	ir_node   *block      = get_nodes_block(call);
	ir_node   **params    = get_Call_param_arr(call);
	ir_type   *method     = get_Call_type(call);
	int       n           = get_Call_n_params(call);
	int       gp_bytes    = get_mode_size_bytes(ia32_reg_classes[CLASS_ia32_gp].mode);
	ir_entity *ent;
	ir_node   *l_res, *h_res, *frame, *fres;
	ir_node   *store_l, *store_h;
	ir_node   *op_mem[2], *mem;
673
674
675
676
677
678
679
680
681
682

	if (n == 1) {
		/* We have a Conv float -> long long here */
		ir_node *a_f        = params[0];
		ir_mode *l_res_mode = get_type_mode(get_method_res_type(method, 0));
		ir_mode *h_res_mode = get_type_mode(get_method_res_type(method, 1));

		assert(mode_is_float(get_irn_mode(a_f)) && "unexpected Conv call");

		/* allocate memory on frame to store args */
683
		ent = env->irg == irg ? env->d_ll_conv : NULL;
684
		if (! ent) {
685
686
			ent      = env->d_ll_conv = frame_alloc_area(get_irg_frame_type(irg), 2 * gp_bytes, 16, 0);
			env->irg = irg;
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
		}

		/* Store arg */
		frame = get_irg_frame(irg);

		/*
			Now we create a node to move the value from a XMM register into
			x87 FPU because it is unknown here, which FPU is used.
			This node is killed in transformation phase when not needed.
			Otherwise it is split up into a movsd + fld
		*/
		a_f = new_rd_ia32_l_SSEtoX87(dbg, irg, block, frame, a_f, get_irg_no_mem(irg), mode_D);
		set_ia32_frame_ent(a_f, ent);
		set_ia32_use_frame(a_f);
		set_ia32_ls_mode(a_f, mode_D);

703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
		if (mode_is_signed(h_res_mode)) {
			/* a float to signed conv, the simple case */

			/* store from FPU as Int */
			a_f = new_rd_ia32_l_vfist(dbg, irg, block, frame, a_f, get_irg_no_mem(irg));
			set_ia32_frame_ent(a_f, ent);
			set_ia32_use_frame(a_f);
			set_ia32_ls_mode(a_f, mode_Ls);
			mem = a_f;

			/* load low part of the result */
			l_res = new_rd_ia32_l_Load(dbg, irg, block, frame, mem);
			set_ia32_frame_ent(l_res, ent);
			set_ia32_use_frame(l_res);
			set_ia32_ls_mode(l_res, l_res_mode);
			l_res = new_r_Proj(irg, block, l_res, l_res_mode, pn_ia32_l_Load_res);

			/* load hight part of the result */
			h_res = new_rd_ia32_l_Load(dbg, irg, block, frame, mem);
			set_ia32_frame_ent(h_res, ent);
			add_ia32_am_offs_int(h_res, gp_bytes);
			set_ia32_use_frame(h_res);
			set_ia32_ls_mode(h_res, h_res_mode);
			h_res = new_r_Proj(irg, block, h_res, h_res_mode, pn_ia32_l_Load_res);
		} else {
			/* a float to unsigned conv, more complicated */
			panic("Float->unsigned64 NYI\n");
		}
731
732
733
734
735
736
737
738
739
740

		/* lower the call */
		resolve_call(call, l_res, h_res, irg, block);
	}
	else if (n == 2) {
		/* We have a Conv long long -> float here */
		ir_node *a_l       = params[BINOP_Left_Low];
		ir_node *a_h       = params[BINOP_Left_High];
		ir_mode *fres_mode = get_type_mode(get_method_res_type(method, 0));

Matthias Braun's avatar
Matthias Braun committed
741
742
		assert(! mode_is_float(get_irn_mode(a_l))
				&& ! mode_is_float(get_irn_mode(a_h)));
743
744

		/* allocate memory on frame to store args */
745
		ent = env->irg == irg ? env->ll_d_conv : NULL;
746
747
		if (! ent) {
			ent = env->ll_d_conv = frame_alloc_area(get_irg_frame_type(irg), 2 * gp_bytes, 16, 0);
748
			env->irg = irg;
749
750
751
752
753
754
755
756
757
758
		}

		/* Store arg */
		frame = get_irg_frame(irg);

		/* store first arg (low part) */
		store_l   = new_rd_ia32_l_Store(dbg, irg, block, frame, a_l, get_irg_no_mem(irg));
		set_ia32_frame_ent(store_l, ent);
		set_ia32_use_frame(store_l);
		set_ia32_ls_mode(store_l, get_irn_mode(a_l));
759
		op_mem[0] = store_l;
760
761
762
763

		/* store second arg (high part) */
		store_h   = new_rd_ia32_l_Store(dbg, irg, block, frame, a_h, get_irg_no_mem(irg));
		set_ia32_frame_ent(store_h, ent);
764
		add_ia32_am_offs_int(store_h, gp_bytes);
765
766
		set_ia32_use_frame(store_h);
		set_ia32_ls_mode(store_h, get_irn_mode(a_h));
767
		op_mem[1] = store_h;
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799

		mem = new_r_Sync(irg, block, 2, op_mem);

		/* Load arg into x87 FPU (implicit convert) */
		fres = new_rd_ia32_l_vfild(dbg, irg, block, frame, mem);
		set_ia32_frame_ent(fres, ent);
		set_ia32_use_frame(fres);
		set_ia32_ls_mode(fres, mode_D);
		mem  = new_r_Proj(irg, block, fres, mode_M, pn_ia32_l_vfild_M);
		fres = new_r_Proj(irg, block, fres, fres_mode, pn_ia32_l_vfild_res);

		/*
			Now we create a node to move the loaded value into a XMM
			register because it is unknown here, which FPU is used.
			This node is killed in transformation phase when not needed.
			Otherwise it is split up into a fst + movsd
		*/
		fres = new_rd_ia32_l_X87toSSE(dbg, irg, block, frame, fres, mem, fres_mode);
		set_ia32_frame_ent(fres, ent);
		set_ia32_use_frame(fres);
		set_ia32_ls_mode(fres, fres_mode);

		/* lower the call */
		resolve_call(call, fres, NULL, irg, block);
	}
	else {
		assert(0 && "unexpected Conv call");
	}

	return 1;
}

800
/* Ia32 implementation of intrinsic mapping. */
801
802
803
ir_entity *ia32_create_intrinsic_fkt(ir_type *method, const ir_op *op,
                                     const ir_mode *imode, const ir_mode *omode,
                                     void *context)
804
805
{
	i_record      elt;
806
	ir_entity     **ent = NULL;
807
808
809
810
811
812
813
814
815
816
817
818
819
820
	i_mapper_func mapper;

	if (! intrinsics)
		intrinsics = NEW_ARR_F(i_record, 0);

	switch (get_op_code(op)) {
	case iro_Add:
		ent    = &i_ents[iro_Add];
		mapper = map_Add;
		break;
	case iro_Sub:
		ent    = &i_ents[iro_Sub];
		mapper = map_Sub;
		break;
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
	case iro_Shl:
		ent    = &i_ents[iro_Shl];
		mapper = map_Shl;
		break;
	case iro_Shr:
		ent    = &i_ents[iro_Shr];
		mapper = map_Shr;
		break;
	case iro_Shrs:
		ent    = &i_ents[iro_Shrs];
		mapper = map_Shrs;
		break;
	case iro_Mul:
		ent    = &i_ents[iro_Mul];
		mapper = map_Mul;
		break;
837
838
839
840
841
842
843
844
	case iro_Minus:
		ent    = &i_ents[iro_Minus];
		mapper = map_Minus;
		break;
	case iro_Abs:
		ent    = &i_ents[iro_Abs];
		mapper = map_Abs;
		break;
845
846
847
848
849
850
851
852
853
854
855
856
	case iro_Div:
		ent    = &i_ents[iro_Div];
		mapper = map_Div;
		break;
	case iro_Mod:
		ent    = &i_ents[iro_Mod];
		mapper = map_Mod;
		break;
	case iro_Conv:
		ent    = &i_ents[iro_Conv];
		mapper = map_Conv;
		break;
857
	default:
Christian Würdig's avatar
Christian Würdig committed
858
		fprintf(stderr, "FIXME: unhandled op for ia32 intrinsic function %s\n", get_id_str(op->name));
859
860
861
862
863
864
		return def_create_intrinsic_fkt(method, op, imode, omode, context);
	}

	if (ent && ! *ent) {
#define IDENT(s)  new_id_from_chars(s, sizeof(s)-1)

Sebastian Hack's avatar
Sebastian Hack committed
865
		ident *id = mangle(IDENT("L"), get_op_ident(op));
866
867
868
869
870
871
		*ent = new_entity(get_glob_type(), id, method);
	}

	elt.i_call.kind     = INTRINSIC_CALL;
	elt.i_call.i_ent    = *ent;
	elt.i_call.i_mapper = mapper;
872
	elt.i_call.ctx      = context;
873
874
875
	elt.i_call.link     = NULL;

	ARR_APP1(i_record, intrinsics, elt);
Sebastian Hack's avatar
Sebastian Hack committed
876
	return *ent;
877
}