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 ir_node *pred = skip_Proj(get_Block_cfgpred(n, i));
267 if (is_Proj(pred) || get_irn_op(pred) == op_Tuple)
268 break; // We can not test properly. How many tuples are there?
269 ASSERT_AND_RET(((get_irn_op(pred) == op_Return) ||
271 (get_irn_op(pred) == op_Raise) ||
272 is_fragile_op(pred) ),
273 "End Block node", 0);
279 /* Start: BB --> X x M x ref x data1 x ... x datan x ref */
280 mymode == mode_T, "Start node", 0
287 mymode == mode_X, "Jmp node", 0
294 mymode == mode_X, "Jmp node", 0
299 op1mode = get_irn_mode(in[1]);
301 /* Cond: BB x b --> X x X */
302 (op1mode == mode_b ||
303 /* Cond: BB x int --> X^n */
304 mode_is_int(op1mode) ), "Cond node", 0
306 ASSERT_AND_RET(mymode == mode_T, "Cond mode is not a tuple", 0);
310 op1mode = get_irn_mode(in[1]);
311 /* Return: BB x M x data1 x ... x datan --> X */
312 /* printf("mode: %s, code %s\n", ID_TO_STR(n->mode->name), ID_TO_STR(n->op->name));*/
313 ASSERT_AND_RET( op1mode == mode_M, "Return node", 0 ); /* operand M */
314 for (i=2; i < get_irn_arity(n); i++) {
315 ASSERT_AND_RET( mode_is_data(get_irn_mode(in[i])), "Return node", 0 ); /* operand datai */
317 ASSERT_AND_RET( mymode == mode_X, "Result X", 0 ); /* result X */
318 /* Compare returned results with result types of method type */
319 mt = get_entity_type(get_irg_ent(irg));
320 ASSERT_AND_RET( get_Return_n_ress(n) == get_method_n_ress(mt),
321 "Number of results for Return doesn't match number of results in type.", 0 );
322 for (i = 0; i < get_Return_n_ress(n); i++)
324 get_irn_mode(get_Return_res(n, i)) == get_type_mode(get_method_res_type(mt, i)),
325 "Mode of result for Return doesn't match mode of result type.", 0);
329 op1mode = get_irn_mode(in[1]);
330 op2mode = get_irn_mode(in[2]);
332 /* Sel: BB x M x ref --> X x M */
333 op1mode == mode_M && mode_is_reference(op2mode) &&
334 mymode == mode_T, "Raise node", 0
340 /* Const: BB --> data */
341 (mode_is_data (mymode) ||
342 mymode == mode_b) /* we want boolean constants for static evaluation */
343 ,"Const node", 0 /* of Cmp. */
349 /* SymConst: BB --> int*/
350 (mode_is_int(mymode) ||
351 /* SymConst: BB --> ref */
352 mode_is_reference(mymode))
353 ,"SymConst node", 0);
357 op1mode = get_irn_mode(in[1]);
358 op2mode = get_irn_mode(in[2]);
360 /* Sel: BB x M x ref x int^n --> ref */
361 (op1mode == mode_M && op2mode == mymode && mode_is_reference(mymode)),
364 for (i=3; i < get_irn_arity(n); i++)
366 ASSERT_AND_RET(mode_is_int(get_irn_mode(in[i])), "Sel node", 0);
371 ASSERT_AND_RET(mode_T == mymode, "mode of Instof is not a tuple", 0);
372 ASSERT_AND_RET(mode_is_data(op1mode), "Instof not on data", 0);
376 op1mode = get_irn_mode(in[1]);
377 op2mode = get_irn_mode(in[2]);
378 /* Call: BB x M x ref x data1 x ... x datan
379 --> M x datan+1 x ... x data n+m */
380 ASSERT_AND_RET( op1mode == mode_M && mode_is_reference(op2mode), "Call node", 0 ); /* operand M x ref */
381 for (i=3; i < get_irn_arity(n); i++) {
382 ASSERT_AND_RET( mode_is_data(get_irn_mode(in[i])), "Call node", 0 ); /* operand datai */
384 ASSERT_AND_RET( mymode == mode_T, "Call result not a tuple", 0 ); /* result T */
385 /* Compare arguments of node with those of type */
386 mt = get_Call_type(n);
388 if (get_method_variadicity(mt) == variadicity_variadic) {
390 get_Call_n_params(n) >= get_method_n_params(mt),
391 "Number of args for Call doesn't match number of args in variadic type.",
396 get_Call_n_params(n) == get_method_n_params(mt),
397 "Number of args for Call doesn't match number of args in non variadic type.",
401 for (i = 0; i < get_method_n_params(mt); i++) {
403 get_irn_mode(get_Call_param(n, i)) == get_type_mode(get_method_param_type(mt, i)),
404 "Mode of arg for Call doesn't match mode of arg type.", 0,
408 fprintf(stderr, "Assertion for Call type-check failed: %s(", get_type_name(mt));
409 for (i = 0; i < get_method_n_params(mt); ++i) {
410 fprintf(stderr, "%s ", get_mode_name(get_type_mode(get_method_param_type(mt, i))));
412 fprintf(stderr, ") != CALL(");
414 for (i = 0; i < get_Call_n_params(n); ++i) {
415 fprintf(stderr, "%s ", get_mode_name(get_irn_mode(get_Call_param(n, i))));
417 fprintf(stderr, ")\n");
425 op1mode = get_irn_mode(in[1]);
426 op2mode = get_irn_mode(in[2]);
429 /* common Add: BB x numP x numP --> numP */
430 (op1mode == mymode && op2mode == op1mode && mode_is_numP(mymode)) ||
431 /* Pointer Add: BB x ref x int --> ref */
432 (mode_is_reference(op1mode) && mode_is_int(op2mode) && op1mode == mymode) ||
433 /* Pointer Add: BB x int x ref --> ref */
434 (mode_is_int(op1mode) && op2mode == mymode && mode_is_reference(mymode))
438 if (mode_is_reference(op1mode) != mode_is_reference(op2mode)) {
439 /* BB x ref x int --> ref or BB x int x ref --> ref */
442 /* BB x num x num --> num or BB x ref x ref */
448 op1mode = get_irn_mode(in[1]);
449 op2mode = get_irn_mode(in[2]);
451 /* common Sub: BB x numP x numP --> numP */
452 ((mymode ==op1mode && mymode == op2mode && mode_is_numP(op1mode)) ||
453 /* Pointer Sub: BB x ref x int --> ref */
454 (op1mode == mymode && mode_is_int(op2mode) && mode_is_reference(mymode)) ||
455 /* Pointer Sub: BB x int x ref --> ref */
456 (mode_is_int(op1mode) && op2mode == mymode && mode_is_reference(mymode)) ||
457 /* Pointer Sub: BB x ref x ref --> int */
458 (op1mode == op2mode && mode_is_reference(op2mode) && mode_is_int(mymode))),
461 if (mode_is_reference(op1mode) != mode_is_reference(op2mode)) {
469 op1mode = get_irn_mode(in[1]);
471 /* Minus: BB x float --> float */
472 op1mode == mymode && get_mode_sort(op1mode) == irms_float_number, "Minus node", 0
478 op1mode = get_irn_mode(in[1]);
479 op2mode = get_irn_mode(in[2]);
481 /* Mul: BB x int1 x int1 --> int2 */
482 ((mode_is_int(op1mode) && op2mode == op1mode && mode_is_int(mymode)) ||
483 (mode_is_float(op1mode) && op2mode == op1mode && mymode == op1mode)),
490 op1mode = get_irn_mode(in[1]);
491 op2mode = get_irn_mode(in[2]);
492 op3mode = get_irn_mode(in[3]);
494 /* Quot: BB x M x float x float --> M x X x float */
495 op1mode == mode_M && op2mode == op3mode &&
496 get_mode_sort(op2mode) == irms_float_number &&
504 op1mode = get_irn_mode(in[1]);
505 op2mode = get_irn_mode(in[2]);
506 op3mode = get_irn_mode(in[3]);
508 /* DivMod: BB x M x int x int --> M x X x int x int */
510 mode_is_int(op2mode) &&
511 op3mode == op2mode &&
520 op1mode = get_irn_mode(in[1]);
521 op2mode = get_irn_mode(in[2]);
522 op3mode = get_irn_mode(in[3]);
524 /* Div or Mod: BB x M x int x int --> M x X x int */
526 op2mode == op3mode &&
527 mode_is_int(op2mode) &&
535 op1mode = get_irn_mode(in[1]);
537 /* Abs: BB x num --> num */
539 mode_is_num (op1mode),
548 op1mode = get_irn_mode(in[1]);
549 op2mode = get_irn_mode(in[2]);
551 /* And or Or or Eor: BB x int x int --> int */
552 mode_is_int(mymode) &&
553 op2mode == op1mode &&
555 "And, Or or Eor node", 0
561 op1mode = get_irn_mode(in[1]);
563 /* Not: BB x int --> int */
564 mode_is_int(mymode) &&
573 op1mode = get_irn_mode(in[1]);
574 op2mode = get_irn_mode(in[2]);
576 /* Cmp: BB x datab x datab --> b16 */
577 mode_is_data (op1mode) &&
578 op2mode == op1mode &&
587 op1mode = get_irn_mode(in[1]);
588 op2mode = get_irn_mode(in[2]);
590 /* Shl, Shr or Shrs: BB x int x int_u --> int */
591 mode_is_int(op1mode) &&
592 mode_is_int(op2mode) &&
593 !mode_is_signed(op2mode) &&
595 "Shl, Shr, Shr or Rot node"
600 op1mode = get_irn_mode(in[1]);
601 op2mode = get_irn_mode(in[2]);
603 /* Rot: BB x int x int --> int */
604 mode_is_int(op1mode) &&
605 mode_is_int(op2mode) &&
612 op1mode = get_irn_mode(in[1]);
614 /* Conv: BB x datab1 --> datab2 */
615 mode_is_datab(op1mode) && mode_is_data(mymode),
621 op1mode = get_irn_mode(in[1]);
623 /* Conv: BB x datab1 --> datab2 */
624 mode_is_data(op1mode) && op1mode == mymode,
630 /* Phi: BB x dataM^n --> dataM */
631 /* for some reason "<=" aborts. int there a problem with get_store? */
632 for (i=1; i < get_irn_arity(n); i++) {
633 if (!is_Bad(in[i]) && (get_irn_op(in[i]) != op_Unknown))
634 ASSERT_AND_RET( get_irn_mode(in[i]) == mymode, "Phi node", 0);
636 ASSERT_AND_RET( mode_is_dataM(mymode), "Phi node", 0 );
640 op1mode = get_irn_mode(in[1]);
641 op2mode = get_irn_mode(in[2]);
643 /* Load: BB x M x ref --> M x X x data */
644 op1mode == mode_M && mode_is_reference(op2mode),
647 ASSERT_AND_RET( mymode == mode_T, "Load node", 0 );
651 op1mode = get_irn_mode(in[1]);
652 op2mode = get_irn_mode(in[2]);
653 op3mode = get_irn_mode(in[3]);
655 /* Load: BB x M x ref data --> M x X */
656 op1mode == mode_M && mode_is_reference(op2mode) && mode_is_data(op3mode),
659 ASSERT_AND_RET(mymode == mode_T, "Store node", 0);
663 op1mode = get_irn_mode(in[1]);
664 op2mode = get_irn_mode(in[2]);
666 /* Alloc: BB x M x int_u --> M x X x ref */
668 mode_is_int(op2mode) &&
669 !mode_is_signed(op2mode) &&
676 op1mode = get_irn_mode(in[1]);
677 op2mode = get_irn_mode(in[2]);
679 /* Free: BB x M x ref --> M */
680 op1mode == mode_M && mode_is_reference(op2mode) &&
687 /* Sync: BB x M^n --> M */
688 for (i=1; i < get_irn_arity(n); i++) {
689 ASSERT_AND_RET( get_irn_mode(in[i]) == mode_M, "Sync node", 0 );
691 ASSERT_AND_RET( mymode == mode_M, "Sync node", 0 );
695 return vrfy_Proj_proj(n, irg);
706 int irn_vrfy(ir_node *n)
708 return irn_vrfy_irg(n, current_ir_graph);
711 /*******************************************************************/
712 /* Verify the whole graph. */
713 /*******************************************************************/
715 static void vrfy_wrap(ir_node *node, void *env)
719 *res = irn_vrfy(node);
722 int irg_vrfy(ir_graph *irg)
727 rem = current_ir_graph;
728 current_ir_graph = irg;
730 assert(get_irg_pinned(irg) == pinned);
732 irg_walk(irg->end, vrfy_wrap, NULL, &res);
734 current_ir_graph = rem;