3 * File name: ir/ir/irvrfy.c
4 * Purpose: Check irnodes for correctness.
5 * Author: Christian Schaefer
6 * Modified by: Goetz Lindenmaier. Till Riedel
9 * Copyright: (c) 1998-2003 Universität Karlsruhe
10 * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
17 # include "irgraph_t.h"
23 * in RELEASE mode, returns ret if the expression expr evaluates to zero
24 * in ASSERT mode, asserts the expression expr (and the string string).
26 #define ASSERT_AND_RET(expr, string, ret) if (!(expr)) return (ret)
29 * in RELEASE mode, returns ret if the expression expr evaluates to zero
30 * in ASSERT mode, executes blk if the expression expr evaluates to zero and asserts
32 #define ASSERT_AND_RET_DBG(expr, string, ret, blk) if (!(expr)) return (ret)
34 #define ASSERT_AND_RET(expr, string, ret) do { assert((expr) && string); if (!(expr)) return (ret); } while(0)
35 #define ASSERT_AND_RET_DBG(expr, string, ret, blk) do { if (!(expr)) { { blk } assert(0 && string); return (ret); } } while(0)
38 /* @@@ replace use of array "in" by access functions. */
39 ir_node **get_irn_in(ir_node *node);
42 vrfy_Proj_proj(ir_node *p, ir_graph *irg) {
47 pred = skip_nop(get_Proj_pred(p));
48 assert(get_irn_mode(pred) == mode_T);
49 mode = get_irn_mode(p);
50 proj = get_Proj_proj(p);
52 switch (get_irn_opcode(pred)) {
56 (proj == pns_initial_exec && mode == mode_X) ||
57 (proj == pns_global_store && mode == mode_M) ||
58 (proj == pns_frame_base && mode_is_reference(mode)) ||
59 (proj == pns_globals && mode_is_reference(mode)) ||
60 (proj == pns_args && mode == mode_T) ||
61 (proj == pns_value_arg_base && mode_is_reference(mode))
63 "wrong Proj from Start", 0);
67 ASSERT_AND_RET( (proj >= 0 && mode == mode_X), "wrong Proj from Cond", 0);
72 ((proj == 0 && mode == mode_X) ||
73 (proj == 1 && mode == mode_M)),
74 "wrong Proj from Raise", 0);
78 ASSERT_AND_RET( (proj >= 0 && mode == mode_X), "wrong Proj from InstOf", 0);
83 ((proj == 0 && mode == mode_M) ||
84 (proj == 1 && mode == mode_X) ||
85 (proj == 2 && mode == mode_T) ||
86 (proj == 3 && mode == mode_M)),
87 "wrong Proj from Call", 0);
92 ((proj == 0 && mode == mode_M) ||
93 (proj == 1 && mode == mode_X) ||
94 (proj == 2 && mode_is_float(mode))),
95 "wrong Proj from Quot", 0);
100 ((proj == 0 && mode == mode_M) ||
101 (proj == 1 && mode == mode_X) ||
102 (proj == 2 && mode == mode_Is) ||
103 (proj == 3 && mode_is_int(mode))),
104 "wrong Proj from DivMod", 0);
110 ((proj == 0 && mode == mode_M) ||
111 (proj == 1 && mode == mode_X) ||
112 (proj == 2 && mode_is_int(mode))),
113 "wrong Proj from Div or Mod", 0);
118 (proj >= 0 && proj <= 15 && mode == mode_b),
119 "wrong Proj from Cmp", 0);
124 ((proj == 0 && mode == mode_M) ||
125 (proj == 1 && mode == mode_X) ||
126 (proj == 2 && mode_is_data(mode))),
127 "wrong Proj from Load", 0);
132 ((proj == 0 && mode == mode_M) ||
133 (proj == 1 && mode == mode_X)),
134 "wrong Proj from Store", 0);
140 (proj == 0 && mode == mode_M) ||
141 (proj == 1 /* && mode == mode_X*/) ||
142 (proj == 2 && mode_is_reference(mode))
144 "wrong Proj from Alloc", 0);
149 type *mt; /* A method type */
150 pred = skip_nop(get_Proj_pred(pred));
151 ASSERT_AND_RET((get_irn_mode(pred) == mode_T), "Proj from something not a tuple", 0);
152 switch (get_irn_opcode(pred))
157 (proj >= 0 && mode_is_data(mode)),
158 "wrong Proj from Proj from Start", 0);
159 mt = get_entity_type(get_irg_ent(irg));
161 (proj < get_method_n_params(mt)),
162 "More Projs for args than args in type", 0);
163 if ((mode_is_reference(mode)) && is_compound_type(get_method_param_type(mt, proj)))
164 /* value argument */ break;
167 (mode == get_type_mode(get_method_param_type(mt, proj))),
168 "Mode of Proj from Start doesn't match mode of param type.", 0);
175 (proj >= 0 && mode_is_data(mode)),
176 "wrong Proj from Proj from Call", 0);
177 mt = get_Call_type(pred);
179 (proj < get_method_n_ress(mt)),
180 "More Projs for results than results in type.", 0);
181 if ((mode_is_reference(mode)) && is_compound_type(get_method_res_type(mt, proj)))
182 /* value result */ break;
185 (mode == get_type_mode(get_method_res_type(mt, proj))),
186 "Mode of Proj from Call doesn't match mode of result type.", 0);
195 ASSERT_AND_RET(0, "Unknown opcode", 0);
214 ASSERT_AND_RET(0, "Unknown opcode", 0);
221 int irn_vrfy_irg(ir_node *n, ir_graph *irg)
225 ir_mode *mymode, *op1mode = NULL, *op2mode, *op3mode;
226 int op_is_symmetric = 1; /* 0: asymmetric
227 1: operands have identical modes
228 2: modes of operands == mode of this node */
229 type *mt; /* A method type */
233 if (! interprocedural_view) {
235 * do NOT check placement in interprocedural view, as we don't always know
236 * the "right" graph ...
238 ASSERT_AND_RET(node_is_in_irgs_storage(irg, n), "Node is not stored on proper IR graph!", 0);
241 opcode = get_irn_opcode (n);
243 /* We don't want to test nodes whose predecessors are Bad or Unknown,
244 as we would have to special case that for each operation. */
245 if (opcode != iro_Phi && opcode != iro_Block)
246 for (i = 0; i < get_irn_arity(n); i++) {
247 opcode1 = get_irn_opcode(get_irn_n(n, i));
248 if (opcode1 == iro_Bad || opcode1 == iro_Unknown)
252 mymode = get_irn_mode (n);
259 for (i = 0; i < get_Block_n_cfgpreds(n); ++i) {
260 ir_node *pred = get_Block_cfgpred(n, i);
261 ASSERT_AND_RET((is_Bad(pred) || (get_irn_mode(pred) == mode_X)), "Block node", 0);
263 // End block may only have Return, Raise or fragile ops as preds.
264 if (n == get_irg_end_block(irg))
265 for (i = 0; i < get_Block_n_cfgpreds(n); ++i) {
266 #if 0 // Some optimization seems to add a Jmp to the End Block??
267 ir_node *pred = skip_Proj(get_Block_cfgpred(n, i));
268 if ((get_irn_op(pred) == op_Return) ||
270 (get_irn_op(pred) == op_Raise) ||
271 is_fragile_op(pred) )
274 DDMG(irg); printf(" pred %d, ", i); DDMN(n); DDMN(pred);
277 ASSERT_AND_RET(((get_irn_op(pred) == op_Return) ||
279 (get_irn_op(pred) == op_Raise) ||
280 is_fragile_op(pred) ),
281 "End Block node", 0);
288 /* Start: BB --> X x M x ref x data1 x ... x datan x ref */
289 mymode == mode_T, "Start node", 0
296 mymode == mode_X, "Jmp node", 0
303 mymode == mode_X, "Jmp node", 0
308 op1mode = get_irn_mode(in[1]);
310 /* Cond: BB x b --> X x X */
311 (op1mode == mode_b ||
312 /* Cond: BB x int --> X^n */
313 mode_is_int(op1mode) ), "Cond node", 0
315 ASSERT_AND_RET(mymode == mode_T, "Cond mode is not a tuple", 0);
319 op1mode = get_irn_mode(in[1]);
320 /* Return: BB x M x data1 x ... x datan --> X */
321 /* printf("mode: %s, code %s\n", ID_TO_STR(n->mode->name), ID_TO_STR(n->op->name));*/
322 ASSERT_AND_RET( op1mode == mode_M, "Return node", 0 ); /* operand M */
323 for (i=2; i < get_irn_arity(n); i++) {
324 ASSERT_AND_RET( mode_is_data(get_irn_mode(in[i])), "Return node", 0 ); /* operand datai */
326 ASSERT_AND_RET( mymode == mode_X, "Result X", 0 ); /* result X */
327 /* Compare returned results with result types of method type */
328 mt = get_entity_type(get_irg_ent(irg));
329 ASSERT_AND_RET( get_Return_n_ress(n) == get_method_n_ress(mt),
330 "Number of results for Return doesn't match number of results in type.", 0 );
331 for (i = 0; i < get_Return_n_ress(n); i++)
333 get_irn_mode(get_Return_res(n, i)) == get_type_mode(get_method_res_type(mt, i)),
334 "Mode of result for Return doesn't match mode of result type.", 0);
338 op1mode = get_irn_mode(in[1]);
339 op2mode = get_irn_mode(in[2]);
341 /* Sel: BB x M x ref --> X x M */
342 op1mode == mode_M && mode_is_reference(op2mode) &&
343 mymode == mode_T, "Raise node", 0
349 /* Const: BB --> data */
350 (mode_is_data (mymode) ||
351 mymode == mode_b) /* we want boolean constants for static evaluation */
352 ,"Const node", 0 /* of Cmp. */
358 /* SymConst: BB --> int*/
359 (mode_is_int(mymode) ||
360 /* SymConst: BB --> ref */
361 mode_is_reference(mymode))
362 ,"SymConst node", 0);
366 op1mode = get_irn_mode(in[1]);
367 op2mode = get_irn_mode(in[2]);
369 /* Sel: BB x M x ref x int^n --> ref */
370 (op1mode == mode_M && op2mode == mymode && mode_is_reference(mymode)),
373 for (i=3; i < get_irn_arity(n); i++)
375 ASSERT_AND_RET(mode_is_int(get_irn_mode(in[i])), "Sel node", 0);
380 ASSERT_AND_RET(mode_T == mymode, "mode of Instof is not a tuple", 0);
381 ASSERT_AND_RET(mode_is_data(op1mode), "Instof not on data", 0);
385 op1mode = get_irn_mode(in[1]);
386 op2mode = get_irn_mode(in[2]);
387 /* Call: BB x M x ref x data1 x ... x datan
388 --> M x datan+1 x ... x data n+m */
389 ASSERT_AND_RET( op1mode == mode_M && mode_is_reference(op2mode), "Call node", 0 ); /* operand M x ref */
390 for (i=3; i < get_irn_arity(n); i++) {
391 ASSERT_AND_RET( mode_is_data(get_irn_mode(in[i])), "Call node", 0 ); /* operand datai */
393 ASSERT_AND_RET( mymode == mode_T, "Call result not a tuple", 0 ); /* result T */
394 /* Compare arguments of node with those of type */
395 mt = get_Call_type(n);
397 if (get_method_variadicity(mt) == variadicity_variadic) {
399 get_Call_n_params(n) >= get_method_n_params(mt),
400 "Number of args for Call doesn't match number of args in variadic type.",
405 get_Call_n_params(n) == get_method_n_params(mt),
406 "Number of args for Call doesn't match number of args in non variadic type.",
410 for (i = 0; i < get_method_n_params(mt); i++) {
412 get_irn_mode(get_Call_param(n, i)) == get_type_mode(get_method_param_type(mt, i)),
413 "Mode of arg for Call doesn't match mode of arg type.", 0,
417 fprintf(stderr, "Assertion for Call type-check failed: %s(", get_type_name(mt));
418 for (i = 0; i < get_method_n_params(mt); ++i) {
419 fprintf(stderr, "%s ", get_mode_name(get_type_mode(get_method_param_type(mt, i))));
421 fprintf(stderr, ") != CALL(");
423 for (i = 0; i < get_Call_n_params(n); ++i) {
424 fprintf(stderr, "%s ", get_mode_name(get_irn_mode(get_Call_param(n, i))));
426 fprintf(stderr, ")\n");
434 op1mode = get_irn_mode(in[1]);
435 op2mode = get_irn_mode(in[2]);
438 /* common Add: BB x numP x numP --> numP */
439 (op1mode == mymode && op2mode == op1mode && mode_is_numP(mymode)) ||
440 /* Pointer Add: BB x ref x int --> ref */
441 (mode_is_reference(op1mode) && mode_is_int(op2mode) && op1mode == mymode) ||
442 /* Pointer Add: BB x int x ref --> ref */
443 (mode_is_int(op1mode) && op2mode == mymode && mode_is_reference(mymode))
447 if (mode_is_reference(op1mode) != mode_is_reference(op2mode)) {
448 /* BB x ref x int --> ref or BB x int x ref --> ref */
451 /* BB x num x num --> num or BB x ref x ref */
457 op1mode = get_irn_mode(in[1]);
458 op2mode = get_irn_mode(in[2]);
460 /* common Sub: BB x numP x numP --> numP */
461 ((mymode ==op1mode && mymode == op2mode && mode_is_numP(op1mode)) ||
462 /* Pointer Sub: BB x ref x int --> ref */
463 (op1mode == mymode && mode_is_int(op2mode) && mode_is_reference(mymode)) ||
464 /* Pointer Sub: BB x int x ref --> ref */
465 (mode_is_int(op1mode) && op2mode == mymode && mode_is_reference(mymode)) ||
466 /* Pointer Sub: BB x ref x ref --> int */
467 (op1mode == op2mode && mode_is_reference(op2mode) && mode_is_int(mymode))),
470 if (mode_is_reference(op1mode) != mode_is_reference(op2mode)) {
478 op1mode = get_irn_mode(in[1]);
480 /* Minus: BB x float --> float */
481 op1mode == mymode && get_mode_sort(op1mode) == irms_float_number, "Minus node", 0
487 op1mode = get_irn_mode(in[1]);
488 op2mode = get_irn_mode(in[2]);
490 /* Mul: BB x int1 x int1 --> int2 */
491 ((mode_is_int(op1mode) && op2mode == op1mode && mode_is_int(mymode)) ||
492 (mode_is_float(op1mode) && op2mode == op1mode && mymode == op1mode)),
499 op1mode = get_irn_mode(in[1]);
500 op2mode = get_irn_mode(in[2]);
501 op3mode = get_irn_mode(in[3]);
503 /* Quot: BB x M x float x float --> M x X x float */
504 op1mode == mode_M && op2mode == op3mode &&
505 get_mode_sort(op2mode) == irms_float_number &&
513 op1mode = get_irn_mode(in[1]);
514 op2mode = get_irn_mode(in[2]);
515 op3mode = get_irn_mode(in[3]);
517 /* DivMod: BB x M x int x int --> M x X x int x int */
519 mode_is_int(op2mode) &&
520 op3mode == op2mode &&
529 op1mode = get_irn_mode(in[1]);
530 op2mode = get_irn_mode(in[2]);
531 op3mode = get_irn_mode(in[3]);
533 /* Div or Mod: BB x M x int x int --> M x X x int */
535 op2mode == op3mode &&
536 mode_is_int(op2mode) &&
544 op1mode = get_irn_mode(in[1]);
546 /* Abs: BB x num --> num */
548 mode_is_num (op1mode),
557 op1mode = get_irn_mode(in[1]);
558 op2mode = get_irn_mode(in[2]);
560 /* And or Or or Eor: BB x int x int --> int */
561 mode_is_int(mymode) &&
562 op2mode == op1mode &&
564 "And, Or or Eor node", 0
570 op1mode = get_irn_mode(in[1]);
572 /* Not: BB x int --> int */
573 mode_is_int(mymode) &&
582 op1mode = get_irn_mode(in[1]);
583 op2mode = get_irn_mode(in[2]);
585 /* Cmp: BB x datab x datab --> b16 */
586 mode_is_data (op1mode) &&
587 op2mode == op1mode &&
596 op1mode = get_irn_mode(in[1]);
597 op2mode = get_irn_mode(in[2]);
599 /* Shl, Shr or Shrs: BB x int x int_u --> int */
600 mode_is_int(op1mode) &&
601 mode_is_int(op2mode) &&
602 !mode_is_signed(op2mode) &&
604 "Shl, Shr, Shr or Rot node"
609 op1mode = get_irn_mode(in[1]);
610 op2mode = get_irn_mode(in[2]);
612 /* Rot: BB x int x int --> int */
613 mode_is_int(op1mode) &&
614 mode_is_int(op2mode) &&
621 op1mode = get_irn_mode(in[1]);
623 /* Conv: BB x datab1 --> datab2 */
624 mode_is_datab(op1mode) && mode_is_data(mymode),
630 op1mode = get_irn_mode(in[1]);
632 /* Conv: BB x datab1 --> datab2 */
633 mode_is_data(op1mode) && op1mode == mymode,
639 /* Phi: BB x dataM^n --> dataM */
640 /* for some reason "<=" aborts. int there a problem with get_store? */
641 for (i=1; i < get_irn_arity(n); i++) {
642 if (!is_Bad(in[i]) && (get_irn_op(in[i]) != op_Unknown))
643 ASSERT_AND_RET( get_irn_mode(in[i]) == mymode, "Phi node", 0);
645 ASSERT_AND_RET( mode_is_dataM(mymode), "Phi node", 0 );
649 op1mode = get_irn_mode(in[1]);
650 op2mode = get_irn_mode(in[2]);
652 /* Load: BB x M x ref --> M x X x data */
653 op1mode == mode_M && mode_is_reference(op2mode),
656 ASSERT_AND_RET( mymode == mode_T, "Load node", 0 );
660 op1mode = get_irn_mode(in[1]);
661 op2mode = get_irn_mode(in[2]);
662 op3mode = get_irn_mode(in[3]);
664 /* Load: BB x M x ref data --> M x X */
665 op1mode == mode_M && mode_is_reference(op2mode) && mode_is_data(op3mode),
668 ASSERT_AND_RET(mymode == mode_T, "Store node", 0);
672 op1mode = get_irn_mode(in[1]);
673 op2mode = get_irn_mode(in[2]);
675 /* Alloc: BB x M x int_u --> M x X x ref */
677 mode_is_int(op2mode) &&
678 !mode_is_signed(op2mode) &&
685 op1mode = get_irn_mode(in[1]);
686 op2mode = get_irn_mode(in[2]);
688 /* Free: BB x M x ref --> M */
689 op1mode == mode_M && mode_is_reference(op2mode) &&
696 /* Sync: BB x M^n --> M */
697 for (i=1; i < get_irn_arity(n); i++) {
698 ASSERT_AND_RET( get_irn_mode(in[i]) == mode_M, "Sync node", 0 );
700 ASSERT_AND_RET( mymode == mode_M, "Sync node", 0 );
704 return vrfy_Proj_proj(n, irg);
715 int irn_vrfy(ir_node *n)
717 return irn_vrfy_irg(n, current_ir_graph);
720 /*******************************************************************/
721 /* Verify the whole graph. */
722 /*******************************************************************/
724 static void vrfy_wrap(ir_node *node, void *env)
728 *res = irn_vrfy(node);
731 int irg_vrfy(ir_graph *irg)
736 rem = current_ir_graph;
737 current_ir_graph = irg;
739 assert(get_irg_pinned(irg) == pinned);
741 irg_walk(irg->end, vrfy_wrap, NULL, &res);
743 current_ir_graph = rem;