2 * Copyright 2012-2013 Ecole Normale Superieure
4 * Use of this software is governed by the MIT license
6 * Written by Sven Verdoolaege,
7 * Ecole Normale Superieure, 45 rue d’Ulm, 75230 Paris, France
10 #include <isl_ast_private.h>
15 #include <isl_list_templ.c>
20 #include <isl_list_templ.c>
22 isl_ctx
*isl_ast_print_options_get_ctx(
23 __isl_keep isl_ast_print_options
*options
)
25 return options
? options
->ctx
: NULL
;
28 __isl_give isl_ast_print_options
*isl_ast_print_options_alloc(isl_ctx
*ctx
)
30 isl_ast_print_options
*options
;
32 options
= isl_calloc_type(ctx
, isl_ast_print_options
);
43 __isl_give isl_ast_print_options
*isl_ast_print_options_dup(
44 __isl_keep isl_ast_print_options
*options
)
47 isl_ast_print_options
*dup
;
52 ctx
= isl_ast_print_options_get_ctx(options
);
53 dup
= isl_ast_print_options_alloc(ctx
);
57 dup
->print_for
= options
->print_for
;
58 dup
->print_for_user
= options
->print_for_user
;
59 dup
->print_user
= options
->print_user
;
60 dup
->print_user_user
= options
->print_user_user
;
65 __isl_give isl_ast_print_options
*isl_ast_print_options_cow(
66 __isl_take isl_ast_print_options
*options
)
71 if (options
->ref
== 1)
74 return isl_ast_print_options_dup(options
);
77 __isl_give isl_ast_print_options
*isl_ast_print_options_copy(
78 __isl_keep isl_ast_print_options
*options
)
87 __isl_null isl_ast_print_options
*isl_ast_print_options_free(
88 __isl_take isl_ast_print_options
*options
)
93 if (--options
->ref
> 0)
96 isl_ctx_deref(options
->ctx
);
102 /* Set the print_user callback of "options" to "print_user".
104 * If this callback is set, then it used to print user nodes in the AST.
105 * Otherwise, the expression associated to the user node is printed.
107 __isl_give isl_ast_print_options
*isl_ast_print_options_set_print_user(
108 __isl_take isl_ast_print_options
*options
,
109 __isl_give isl_printer
*(*print_user
)(__isl_take isl_printer
*p
,
110 __isl_take isl_ast_print_options
*options
,
111 __isl_keep isl_ast_node
*node
, void *user
),
114 options
= isl_ast_print_options_cow(options
);
118 options
->print_user
= print_user
;
119 options
->print_user_user
= user
;
124 /* Set the print_for callback of "options" to "print_for".
126 * If this callback is set, then it used to print for nodes in the AST.
128 __isl_give isl_ast_print_options
*isl_ast_print_options_set_print_for(
129 __isl_take isl_ast_print_options
*options
,
130 __isl_give isl_printer
*(*print_for
)(__isl_take isl_printer
*p
,
131 __isl_take isl_ast_print_options
*options
,
132 __isl_keep isl_ast_node
*node
, void *user
),
135 options
= isl_ast_print_options_cow(options
);
139 options
->print_for
= print_for
;
140 options
->print_for_user
= user
;
145 __isl_give isl_ast_expr
*isl_ast_expr_copy(__isl_keep isl_ast_expr
*expr
)
154 __isl_give isl_ast_expr
*isl_ast_expr_dup(__isl_keep isl_ast_expr
*expr
)
163 ctx
= isl_ast_expr_get_ctx(expr
);
164 switch (expr
->type
) {
165 case isl_ast_expr_int
:
166 dup
= isl_ast_expr_from_val(isl_val_copy(expr
->u
.v
));
168 case isl_ast_expr_id
:
169 dup
= isl_ast_expr_from_id(isl_id_copy(expr
->u
.id
));
171 case isl_ast_expr_op
:
172 dup
= isl_ast_expr_alloc_op(ctx
,
173 expr
->u
.op
.op
, expr
->u
.op
.n_arg
);
176 for (i
= 0; i
< expr
->u
.op
.n_arg
; ++i
)
178 isl_ast_expr_copy(expr
->u
.op
.args
[i
]);
180 case isl_ast_expr_error
:
190 __isl_give isl_ast_expr
*isl_ast_expr_cow(__isl_take isl_ast_expr
*expr
)
198 return isl_ast_expr_dup(expr
);
201 __isl_null isl_ast_expr
*isl_ast_expr_free(__isl_take isl_ast_expr
*expr
)
211 isl_ctx_deref(expr
->ctx
);
213 switch (expr
->type
) {
214 case isl_ast_expr_int
:
215 isl_val_free(expr
->u
.v
);
217 case isl_ast_expr_id
:
218 isl_id_free(expr
->u
.id
);
220 case isl_ast_expr_op
:
222 for (i
= 0; i
< expr
->u
.op
.n_arg
; ++i
)
223 isl_ast_expr_free(expr
->u
.op
.args
[i
]);
224 free(expr
->u
.op
.args
);
226 case isl_ast_expr_error
:
234 isl_ctx
*isl_ast_expr_get_ctx(__isl_keep isl_ast_expr
*expr
)
236 return expr
? expr
->ctx
: NULL
;
239 enum isl_ast_expr_type
isl_ast_expr_get_type(__isl_keep isl_ast_expr
*expr
)
241 return expr
? expr
->type
: isl_ast_expr_error
;
244 /* Return the integer value represented by "expr".
246 __isl_give isl_val
*isl_ast_expr_get_val(__isl_keep isl_ast_expr
*expr
)
250 if (expr
->type
!= isl_ast_expr_int
)
251 isl_die(isl_ast_expr_get_ctx(expr
), isl_error_invalid
,
252 "expression not an int", return NULL
);
253 return isl_val_copy(expr
->u
.v
);
256 __isl_give isl_id
*isl_ast_expr_get_id(__isl_keep isl_ast_expr
*expr
)
260 if (expr
->type
!= isl_ast_expr_id
)
261 isl_die(isl_ast_expr_get_ctx(expr
), isl_error_invalid
,
262 "expression not an identifier", return NULL
);
264 return isl_id_copy(expr
->u
.id
);
267 enum isl_ast_op_type
isl_ast_expr_get_op_type(__isl_keep isl_ast_expr
*expr
)
270 return isl_ast_op_error
;
271 if (expr
->type
!= isl_ast_expr_op
)
272 isl_die(isl_ast_expr_get_ctx(expr
), isl_error_invalid
,
273 "expression not an operation", return isl_ast_op_error
);
274 return expr
->u
.op
.op
;
277 int isl_ast_expr_get_op_n_arg(__isl_keep isl_ast_expr
*expr
)
281 if (expr
->type
!= isl_ast_expr_op
)
282 isl_die(isl_ast_expr_get_ctx(expr
), isl_error_invalid
,
283 "expression not an operation", return -1);
284 return expr
->u
.op
.n_arg
;
287 __isl_give isl_ast_expr
*isl_ast_expr_get_op_arg(__isl_keep isl_ast_expr
*expr
,
292 if (expr
->type
!= isl_ast_expr_op
)
293 isl_die(isl_ast_expr_get_ctx(expr
), isl_error_invalid
,
294 "expression not an operation", return NULL
);
295 if (pos
< 0 || pos
>= expr
->u
.op
.n_arg
)
296 isl_die(isl_ast_expr_get_ctx(expr
), isl_error_invalid
,
297 "index out of bounds", return NULL
);
299 return isl_ast_expr_copy(expr
->u
.op
.args
[pos
]);
302 /* Replace the argument at position "pos" of "expr" by "arg".
304 __isl_give isl_ast_expr
*isl_ast_expr_set_op_arg(__isl_take isl_ast_expr
*expr
,
305 int pos
, __isl_take isl_ast_expr
*arg
)
307 expr
= isl_ast_expr_cow(expr
);
310 if (expr
->type
!= isl_ast_expr_op
)
311 isl_die(isl_ast_expr_get_ctx(expr
), isl_error_invalid
,
312 "expression not an operation", goto error
);
313 if (pos
< 0 || pos
>= expr
->u
.op
.n_arg
)
314 isl_die(isl_ast_expr_get_ctx(expr
), isl_error_invalid
,
315 "index out of bounds", goto error
);
317 isl_ast_expr_free(expr
->u
.op
.args
[pos
]);
318 expr
->u
.op
.args
[pos
] = arg
;
322 isl_ast_expr_free(arg
);
323 return isl_ast_expr_free(expr
);
326 /* Is "expr1" equal to "expr2"?
328 int isl_ast_expr_is_equal(__isl_keep isl_ast_expr
*expr1
,
329 __isl_keep isl_ast_expr
*expr2
)
333 if (!expr1
|| !expr2
)
338 if (expr1
->type
!= expr2
->type
)
340 switch (expr1
->type
) {
341 case isl_ast_expr_int
:
342 return isl_val_eq(expr1
->u
.v
, expr2
->u
.v
);
343 case isl_ast_expr_id
:
344 return expr1
->u
.id
== expr2
->u
.id
;
345 case isl_ast_expr_op
:
346 if (expr1
->u
.op
.op
!= expr2
->u
.op
.op
)
348 if (expr1
->u
.op
.n_arg
!= expr2
->u
.op
.n_arg
)
350 for (i
= 0; i
< expr1
->u
.op
.n_arg
; ++i
) {
352 equal
= isl_ast_expr_is_equal(expr1
->u
.op
.args
[i
],
353 expr2
->u
.op
.args
[i
]);
355 if (equal
< 0 || !equal
)
359 case isl_ast_expr_error
:
364 /* Create a new operation expression of operation type "op",
365 * with "n_arg" as yet unspecified arguments.
367 __isl_give isl_ast_expr
*isl_ast_expr_alloc_op(isl_ctx
*ctx
,
368 enum isl_ast_op_type op
, int n_arg
)
372 expr
= isl_calloc_type(ctx
, isl_ast_expr
);
379 expr
->type
= isl_ast_expr_op
;
381 expr
->u
.op
.n_arg
= n_arg
;
382 expr
->u
.op
.args
= isl_calloc_array(ctx
, isl_ast_expr
*, n_arg
);
384 if (n_arg
&& !expr
->u
.op
.args
)
385 return isl_ast_expr_free(expr
);
390 /* Create a new id expression representing "id".
392 __isl_give isl_ast_expr
*isl_ast_expr_from_id(__isl_take isl_id
*id
)
400 ctx
= isl_id_get_ctx(id
);
401 expr
= isl_calloc_type(ctx
, isl_ast_expr
);
408 expr
->type
= isl_ast_expr_id
;
417 /* Create a new integer expression representing "i".
419 __isl_give isl_ast_expr
*isl_ast_expr_alloc_int_si(isl_ctx
*ctx
, int i
)
423 expr
= isl_calloc_type(ctx
, isl_ast_expr
);
430 expr
->type
= isl_ast_expr_int
;
431 expr
->u
.v
= isl_val_int_from_si(ctx
, i
);
433 return isl_ast_expr_free(expr
);
438 /* Create a new integer expression representing "v".
440 __isl_give isl_ast_expr
*isl_ast_expr_from_val(__isl_take isl_val
*v
)
447 if (!isl_val_is_int(v
))
448 isl_die(isl_val_get_ctx(v
), isl_error_invalid
,
449 "expecting integer value", goto error
);
451 ctx
= isl_val_get_ctx(v
);
452 expr
= isl_calloc_type(ctx
, isl_ast_expr
);
459 expr
->type
= isl_ast_expr_int
;
468 /* Create an expression representing the unary operation "type" applied to
471 __isl_give isl_ast_expr
*isl_ast_expr_alloc_unary(enum isl_ast_op_type type
,
472 __isl_take isl_ast_expr
*arg
)
475 isl_ast_expr
*expr
= NULL
;
480 ctx
= isl_ast_expr_get_ctx(arg
);
481 expr
= isl_ast_expr_alloc_op(ctx
, type
, 1);
485 expr
->u
.op
.args
[0] = arg
;
489 isl_ast_expr_free(arg
);
493 /* Create an expression representing the negation of "arg".
495 __isl_give isl_ast_expr
*isl_ast_expr_neg(__isl_take isl_ast_expr
*arg
)
497 return isl_ast_expr_alloc_unary(isl_ast_op_minus
, arg
);
500 /* Create an expression representing the address of "expr".
502 __isl_give isl_ast_expr
*isl_ast_expr_address_of(__isl_take isl_ast_expr
*expr
)
507 if (isl_ast_expr_get_type(expr
) != isl_ast_expr_op
||
508 isl_ast_expr_get_op_type(expr
) != isl_ast_op_access
)
509 isl_die(isl_ast_expr_get_ctx(expr
), isl_error_invalid
,
510 "can only take address of access expressions",
511 return isl_ast_expr_free(expr
));
513 return isl_ast_expr_alloc_unary(isl_ast_op_address_of
, expr
);
516 /* Create an expression representing the binary operation "type"
517 * applied to "expr1" and "expr2".
519 __isl_give isl_ast_expr
*isl_ast_expr_alloc_binary(enum isl_ast_op_type type
,
520 __isl_take isl_ast_expr
*expr1
, __isl_take isl_ast_expr
*expr2
)
523 isl_ast_expr
*expr
= NULL
;
525 if (!expr1
|| !expr2
)
528 ctx
= isl_ast_expr_get_ctx(expr1
);
529 expr
= isl_ast_expr_alloc_op(ctx
, type
, 2);
533 expr
->u
.op
.args
[0] = expr1
;
534 expr
->u
.op
.args
[1] = expr2
;
538 isl_ast_expr_free(expr1
);
539 isl_ast_expr_free(expr2
);
543 /* Create an expression representing the sum of "expr1" and "expr2".
545 __isl_give isl_ast_expr
*isl_ast_expr_add(__isl_take isl_ast_expr
*expr1
,
546 __isl_take isl_ast_expr
*expr2
)
548 return isl_ast_expr_alloc_binary(isl_ast_op_add
, expr1
, expr2
);
551 /* Create an expression representing the difference of "expr1" and "expr2".
553 __isl_give isl_ast_expr
*isl_ast_expr_sub(__isl_take isl_ast_expr
*expr1
,
554 __isl_take isl_ast_expr
*expr2
)
556 return isl_ast_expr_alloc_binary(isl_ast_op_sub
, expr1
, expr2
);
559 /* Create an expression representing the product of "expr1" and "expr2".
561 __isl_give isl_ast_expr
*isl_ast_expr_mul(__isl_take isl_ast_expr
*expr1
,
562 __isl_take isl_ast_expr
*expr2
)
564 return isl_ast_expr_alloc_binary(isl_ast_op_mul
, expr1
, expr2
);
567 /* Create an expression representing the quotient of "expr1" and "expr2".
569 __isl_give isl_ast_expr
*isl_ast_expr_div(__isl_take isl_ast_expr
*expr1
,
570 __isl_take isl_ast_expr
*expr2
)
572 return isl_ast_expr_alloc_binary(isl_ast_op_div
, expr1
, expr2
);
575 /* Create an expression representing the conjunction of "expr1" and "expr2".
577 __isl_give isl_ast_expr
*isl_ast_expr_and(__isl_take isl_ast_expr
*expr1
,
578 __isl_take isl_ast_expr
*expr2
)
580 return isl_ast_expr_alloc_binary(isl_ast_op_and
, expr1
, expr2
);
583 /* Create an expression representing the disjunction of "expr1" and "expr2".
585 __isl_give isl_ast_expr
*isl_ast_expr_or(__isl_take isl_ast_expr
*expr1
,
586 __isl_take isl_ast_expr
*expr2
)
588 return isl_ast_expr_alloc_binary(isl_ast_op_or
, expr1
, expr2
);
591 /* Create an expression representing "expr1" less than or equal to "expr2".
593 __isl_give isl_ast_expr
*isl_ast_expr_le(__isl_take isl_ast_expr
*expr1
,
594 __isl_take isl_ast_expr
*expr2
)
596 return isl_ast_expr_alloc_binary(isl_ast_op_le
, expr1
, expr2
);
599 /* Create an expression representing "expr1" less than "expr2".
601 __isl_give isl_ast_expr
*isl_ast_expr_lt(__isl_take isl_ast_expr
*expr1
,
602 __isl_take isl_ast_expr
*expr2
)
604 return isl_ast_expr_alloc_binary(isl_ast_op_lt
, expr1
, expr2
);
607 /* Create an expression representing "expr1" greater than or equal to "expr2".
609 __isl_give isl_ast_expr
*isl_ast_expr_ge(__isl_take isl_ast_expr
*expr1
,
610 __isl_take isl_ast_expr
*expr2
)
612 return isl_ast_expr_alloc_binary(isl_ast_op_ge
, expr1
, expr2
);
615 /* Create an expression representing "expr1" greater than "expr2".
617 __isl_give isl_ast_expr
*isl_ast_expr_gt(__isl_take isl_ast_expr
*expr1
,
618 __isl_take isl_ast_expr
*expr2
)
620 return isl_ast_expr_alloc_binary(isl_ast_op_gt
, expr1
, expr2
);
623 /* Create an expression representing "expr1" equal to "expr2".
625 __isl_give isl_ast_expr
*isl_ast_expr_eq(__isl_take isl_ast_expr
*expr1
,
626 __isl_take isl_ast_expr
*expr2
)
628 return isl_ast_expr_alloc_binary(isl_ast_op_eq
, expr1
, expr2
);
631 /* Create an expression representing an access to "array" with index
632 * expressions "indices".
634 __isl_give isl_ast_expr
*isl_ast_expr_access(__isl_take isl_ast_expr
*array
,
635 __isl_take isl_ast_expr_list
*indices
)
639 isl_ast_expr
*access
= NULL
;
641 if (!array
|| !indices
)
644 ctx
= isl_ast_expr_get_ctx(array
);
645 n
= isl_ast_expr_list_n_ast_expr(indices
);
646 access
= isl_ast_expr_alloc_op(ctx
, isl_ast_op_access
, 1 + n
);
649 for (i
= 0; i
< n
; ++i
) {
651 index
= isl_ast_expr_list_get_ast_expr(indices
, i
);
652 access
->u
.op
.args
[1 + i
] = index
;
656 access
->u
.op
.args
[0] = array
;
658 isl_ast_expr_list_free(indices
);
661 isl_ast_expr_free(array
);
662 isl_ast_expr_list_free(indices
);
663 isl_ast_expr_free(access
);
667 /* For each subexpression of "expr" of type isl_ast_expr_id,
668 * if it appears in "id2expr", then replace it by the corresponding
671 __isl_give isl_ast_expr
*isl_ast_expr_substitute_ids(
672 __isl_take isl_ast_expr
*expr
, __isl_take isl_id_to_ast_expr
*id2expr
)
677 if (!expr
|| !id2expr
)
680 switch (expr
->type
) {
681 case isl_ast_expr_int
:
683 case isl_ast_expr_id
:
684 if (!isl_id_to_ast_expr_has(id2expr
, expr
->u
.id
))
686 id
= isl_id_copy(expr
->u
.id
);
687 isl_ast_expr_free(expr
);
688 expr
= isl_id_to_ast_expr_get(id2expr
, id
);
690 case isl_ast_expr_op
:
691 for (i
= 0; i
< expr
->u
.op
.n_arg
; ++i
) {
693 arg
= isl_ast_expr_copy(expr
->u
.op
.args
[i
]);
694 arg
= isl_ast_expr_substitute_ids(arg
,
695 isl_id_to_ast_expr_copy(id2expr
));
696 if (arg
== expr
->u
.op
.args
[i
]) {
697 isl_ast_expr_free(arg
);
701 expr
= isl_ast_expr_free(expr
);
702 expr
= isl_ast_expr_cow(expr
);
704 isl_ast_expr_free(arg
);
707 isl_ast_expr_free(expr
->u
.op
.args
[i
]);
708 expr
->u
.op
.args
[i
] = arg
;
711 case isl_ast_expr_error
:
712 expr
= isl_ast_expr_free(expr
);
716 isl_id_to_ast_expr_free(id2expr
);
719 isl_ast_expr_free(expr
);
720 isl_id_to_ast_expr_free(id2expr
);
724 isl_ctx
*isl_ast_node_get_ctx(__isl_keep isl_ast_node
*node
)
726 return node
? node
->ctx
: NULL
;
729 enum isl_ast_node_type
isl_ast_node_get_type(__isl_keep isl_ast_node
*node
)
731 return node
? node
->type
: isl_ast_node_error
;
734 __isl_give isl_ast_node
*isl_ast_node_alloc(isl_ctx
*ctx
,
735 enum isl_ast_node_type type
)
739 node
= isl_calloc_type(ctx
, isl_ast_node
);
751 /* Create an if node with the given guard.
753 * The then body needs to be filled in later.
755 __isl_give isl_ast_node
*isl_ast_node_alloc_if(__isl_take isl_ast_expr
*guard
)
762 node
= isl_ast_node_alloc(isl_ast_expr_get_ctx(guard
), isl_ast_node_if
);
765 node
->u
.i
.guard
= guard
;
769 isl_ast_expr_free(guard
);
773 /* Create a for node with the given iterator.
775 * The remaining fields need to be filled in later.
777 __isl_give isl_ast_node
*isl_ast_node_alloc_for(__isl_take isl_id
*id
)
785 ctx
= isl_id_get_ctx(id
);
786 node
= isl_ast_node_alloc(ctx
, isl_ast_node_for
);
790 node
->u
.f
.iterator
= isl_ast_expr_from_id(id
);
791 if (!node
->u
.f
.iterator
)
792 return isl_ast_node_free(node
);
800 /* Create a user node evaluating "expr".
802 __isl_give isl_ast_node
*isl_ast_node_alloc_user(__isl_take isl_ast_expr
*expr
)
810 ctx
= isl_ast_expr_get_ctx(expr
);
811 node
= isl_ast_node_alloc(ctx
, isl_ast_node_user
);
815 node
->u
.e
.expr
= expr
;
819 isl_ast_expr_free(expr
);
823 /* Create a block node with the given children.
825 __isl_give isl_ast_node
*isl_ast_node_alloc_block(
826 __isl_take isl_ast_node_list
*list
)
834 ctx
= isl_ast_node_list_get_ctx(list
);
835 node
= isl_ast_node_alloc(ctx
, isl_ast_node_block
);
839 node
->u
.b
.children
= list
;
843 isl_ast_node_list_free(list
);
847 /* Represent the given list of nodes as a single node, either by
848 * extract the node from a single element list or by creating
849 * a block node with the list of nodes as children.
851 __isl_give isl_ast_node
*isl_ast_node_from_ast_node_list(
852 __isl_take isl_ast_node_list
*list
)
856 if (isl_ast_node_list_n_ast_node(list
) != 1)
857 return isl_ast_node_alloc_block(list
);
859 node
= isl_ast_node_list_get_ast_node(list
, 0);
860 isl_ast_node_list_free(list
);
865 __isl_give isl_ast_node
*isl_ast_node_copy(__isl_keep isl_ast_node
*node
)
874 __isl_give isl_ast_node
*isl_ast_node_dup(__isl_keep isl_ast_node
*node
)
881 dup
= isl_ast_node_alloc(isl_ast_node_get_ctx(node
), node
->type
);
885 switch (node
->type
) {
886 case isl_ast_node_if
:
887 dup
->u
.i
.guard
= isl_ast_expr_copy(node
->u
.i
.guard
);
888 dup
->u
.i
.then
= isl_ast_node_copy(node
->u
.i
.then
);
889 dup
->u
.i
.else_node
= isl_ast_node_copy(node
->u
.i
.else_node
);
890 if (!dup
->u
.i
.guard
|| !dup
->u
.i
.then
||
891 (node
->u
.i
.else_node
&& !dup
->u
.i
.else_node
))
892 return isl_ast_node_free(dup
);
894 case isl_ast_node_for
:
895 dup
->u
.f
.iterator
= isl_ast_expr_copy(node
->u
.f
.iterator
);
896 dup
->u
.f
.init
= isl_ast_expr_copy(node
->u
.f
.init
);
897 dup
->u
.f
.cond
= isl_ast_expr_copy(node
->u
.f
.cond
);
898 dup
->u
.f
.inc
= isl_ast_expr_copy(node
->u
.f
.inc
);
899 dup
->u
.f
.body
= isl_ast_node_copy(node
->u
.f
.body
);
900 if (!dup
->u
.f
.iterator
|| !dup
->u
.f
.init
|| !dup
->u
.f
.cond
||
901 !dup
->u
.f
.inc
|| !dup
->u
.f
.body
)
902 return isl_ast_node_free(dup
);
904 case isl_ast_node_block
:
905 dup
->u
.b
.children
= isl_ast_node_list_copy(node
->u
.b
.children
);
906 if (!dup
->u
.b
.children
)
907 return isl_ast_node_free(dup
);
909 case isl_ast_node_user
:
910 dup
->u
.e
.expr
= isl_ast_expr_copy(node
->u
.e
.expr
);
912 return isl_ast_node_free(dup
);
914 case isl_ast_node_error
:
921 __isl_give isl_ast_node
*isl_ast_node_cow(__isl_take isl_ast_node
*node
)
929 return isl_ast_node_dup(node
);
932 __isl_null isl_ast_node
*isl_ast_node_free(__isl_take isl_ast_node
*node
)
940 switch (node
->type
) {
941 case isl_ast_node_if
:
942 isl_ast_expr_free(node
->u
.i
.guard
);
943 isl_ast_node_free(node
->u
.i
.then
);
944 isl_ast_node_free(node
->u
.i
.else_node
);
946 case isl_ast_node_for
:
947 isl_ast_expr_free(node
->u
.f
.iterator
);
948 isl_ast_expr_free(node
->u
.f
.init
);
949 isl_ast_expr_free(node
->u
.f
.cond
);
950 isl_ast_expr_free(node
->u
.f
.inc
);
951 isl_ast_node_free(node
->u
.f
.body
);
953 case isl_ast_node_block
:
954 isl_ast_node_list_free(node
->u
.b
.children
);
956 case isl_ast_node_user
:
957 isl_ast_expr_free(node
->u
.e
.expr
);
959 case isl_ast_node_error
:
963 isl_id_free(node
->annotation
);
964 isl_ctx_deref(node
->ctx
);
970 /* Replace the body of the for node "node" by "body".
972 __isl_give isl_ast_node
*isl_ast_node_for_set_body(
973 __isl_take isl_ast_node
*node
, __isl_take isl_ast_node
*body
)
975 node
= isl_ast_node_cow(node
);
978 if (node
->type
!= isl_ast_node_for
)
979 isl_die(isl_ast_node_get_ctx(node
), isl_error_invalid
,
980 "not a for node", goto error
);
982 isl_ast_node_free(node
->u
.f
.body
);
983 node
->u
.f
.body
= body
;
987 isl_ast_node_free(node
);
988 isl_ast_node_free(body
);
992 __isl_give isl_ast_node
*isl_ast_node_for_get_body(
993 __isl_keep isl_ast_node
*node
)
997 if (node
->type
!= isl_ast_node_for
)
998 isl_die(isl_ast_node_get_ctx(node
), isl_error_invalid
,
999 "not a for node", return NULL
);
1000 return isl_ast_node_copy(node
->u
.f
.body
);
1003 /* Mark the given for node as being degenerate.
1005 __isl_give isl_ast_node
*isl_ast_node_for_mark_degenerate(
1006 __isl_take isl_ast_node
*node
)
1008 node
= isl_ast_node_cow(node
);
1011 node
->u
.f
.degenerate
= 1;
1015 int isl_ast_node_for_is_degenerate(__isl_keep isl_ast_node
*node
)
1019 if (node
->type
!= isl_ast_node_for
)
1020 isl_die(isl_ast_node_get_ctx(node
), isl_error_invalid
,
1021 "not a for node", return -1);
1022 return node
->u
.f
.degenerate
;
1025 __isl_give isl_ast_expr
*isl_ast_node_for_get_iterator(
1026 __isl_keep isl_ast_node
*node
)
1030 if (node
->type
!= isl_ast_node_for
)
1031 isl_die(isl_ast_node_get_ctx(node
), isl_error_invalid
,
1032 "not a for node", return NULL
);
1033 return isl_ast_expr_copy(node
->u
.f
.iterator
);
1036 __isl_give isl_ast_expr
*isl_ast_node_for_get_init(
1037 __isl_keep isl_ast_node
*node
)
1041 if (node
->type
!= isl_ast_node_for
)
1042 isl_die(isl_ast_node_get_ctx(node
), isl_error_invalid
,
1043 "not a for node", return NULL
);
1044 return isl_ast_expr_copy(node
->u
.f
.init
);
1047 /* Return the condition expression of the given for node.
1049 * If the for node is degenerate, then the condition is not explicitly
1050 * stored in the node. Instead, it is constructed as
1054 __isl_give isl_ast_expr
*isl_ast_node_for_get_cond(
1055 __isl_keep isl_ast_node
*node
)
1059 if (node
->type
!= isl_ast_node_for
)
1060 isl_die(isl_ast_node_get_ctx(node
), isl_error_invalid
,
1061 "not a for node", return NULL
);
1062 if (!node
->u
.f
.degenerate
)
1063 return isl_ast_expr_copy(node
->u
.f
.cond
);
1065 return isl_ast_expr_alloc_binary(isl_ast_op_le
,
1066 isl_ast_expr_copy(node
->u
.f
.iterator
),
1067 isl_ast_expr_copy(node
->u
.f
.init
));
1070 /* Return the increment of the given for node.
1072 * If the for node is degenerate, then the increment is not explicitly
1073 * stored in the node. We simply return "1".
1075 __isl_give isl_ast_expr
*isl_ast_node_for_get_inc(
1076 __isl_keep isl_ast_node
*node
)
1080 if (node
->type
!= isl_ast_node_for
)
1081 isl_die(isl_ast_node_get_ctx(node
), isl_error_invalid
,
1082 "not a for node", return NULL
);
1083 if (!node
->u
.f
.degenerate
)
1084 return isl_ast_expr_copy(node
->u
.f
.inc
);
1085 return isl_ast_expr_alloc_int_si(isl_ast_node_get_ctx(node
), 1);
1088 /* Replace the then branch of the if node "node" by "child".
1090 __isl_give isl_ast_node
*isl_ast_node_if_set_then(
1091 __isl_take isl_ast_node
*node
, __isl_take isl_ast_node
*child
)
1093 node
= isl_ast_node_cow(node
);
1094 if (!node
|| !child
)
1096 if (node
->type
!= isl_ast_node_if
)
1097 isl_die(isl_ast_node_get_ctx(node
), isl_error_invalid
,
1098 "not an if node", goto error
);
1100 isl_ast_node_free(node
->u
.i
.then
);
1101 node
->u
.i
.then
= child
;
1105 isl_ast_node_free(node
);
1106 isl_ast_node_free(child
);
1110 __isl_give isl_ast_node
*isl_ast_node_if_get_then(
1111 __isl_keep isl_ast_node
*node
)
1115 if (node
->type
!= isl_ast_node_if
)
1116 isl_die(isl_ast_node_get_ctx(node
), isl_error_invalid
,
1117 "not an if node", return NULL
);
1118 return isl_ast_node_copy(node
->u
.i
.then
);
1121 int isl_ast_node_if_has_else(
1122 __isl_keep isl_ast_node
*node
)
1126 if (node
->type
!= isl_ast_node_if
)
1127 isl_die(isl_ast_node_get_ctx(node
), isl_error_invalid
,
1128 "not an if node", return -1);
1129 return node
->u
.i
.else_node
!= NULL
;
1132 __isl_give isl_ast_node
*isl_ast_node_if_get_else(
1133 __isl_keep isl_ast_node
*node
)
1137 if (node
->type
!= isl_ast_node_if
)
1138 isl_die(isl_ast_node_get_ctx(node
), isl_error_invalid
,
1139 "not an if node", return NULL
);
1140 return isl_ast_node_copy(node
->u
.i
.else_node
);
1143 __isl_give isl_ast_expr
*isl_ast_node_if_get_cond(
1144 __isl_keep isl_ast_node
*node
)
1148 if (node
->type
!= isl_ast_node_if
)
1149 isl_die(isl_ast_node_get_ctx(node
), isl_error_invalid
,
1150 "not a guard node", return NULL
);
1151 return isl_ast_expr_copy(node
->u
.i
.guard
);
1154 __isl_give isl_ast_node_list
*isl_ast_node_block_get_children(
1155 __isl_keep isl_ast_node
*node
)
1159 if (node
->type
!= isl_ast_node_block
)
1160 isl_die(isl_ast_node_get_ctx(node
), isl_error_invalid
,
1161 "not a block node", return NULL
);
1162 return isl_ast_node_list_copy(node
->u
.b
.children
);
1165 __isl_give isl_ast_expr
*isl_ast_node_user_get_expr(
1166 __isl_keep isl_ast_node
*node
)
1170 if (node
->type
!= isl_ast_node_user
)
1171 isl_die(isl_ast_node_get_ctx(node
), isl_error_invalid
,
1172 "not a user node", return NULL
);
1174 return isl_ast_expr_copy(node
->u
.e
.expr
);
1177 __isl_give isl_id
*isl_ast_node_get_annotation(__isl_keep isl_ast_node
*node
)
1179 return node
? isl_id_copy(node
->annotation
) : NULL
;
1182 /* Replace node->annotation by "annotation".
1184 __isl_give isl_ast_node
*isl_ast_node_set_annotation(
1185 __isl_take isl_ast_node
*node
, __isl_take isl_id
*annotation
)
1187 node
= isl_ast_node_cow(node
);
1188 if (!node
|| !annotation
)
1191 isl_id_free(node
->annotation
);
1192 node
->annotation
= annotation
;
1196 isl_id_free(annotation
);
1197 return isl_ast_node_free(node
);
1200 /* Textual C representation of the various operators.
1202 static char *op_str
[] = {
1203 [isl_ast_op_and
] = "&&",
1204 [isl_ast_op_and_then
] = "&&",
1205 [isl_ast_op_or
] = "||",
1206 [isl_ast_op_or_else
] = "||",
1207 [isl_ast_op_max
] = "max",
1208 [isl_ast_op_min
] = "min",
1209 [isl_ast_op_minus
] = "-",
1210 [isl_ast_op_add
] = "+",
1211 [isl_ast_op_sub
] = "-",
1212 [isl_ast_op_mul
] = "*",
1213 [isl_ast_op_pdiv_q
] = "/",
1214 [isl_ast_op_pdiv_r
] = "%",
1215 [isl_ast_op_div
] = "/",
1216 [isl_ast_op_eq
] = "==",
1217 [isl_ast_op_le
] = "<=",
1218 [isl_ast_op_ge
] = ">=",
1219 [isl_ast_op_lt
] = "<",
1220 [isl_ast_op_gt
] = ">",
1221 [isl_ast_op_member
] = ".",
1222 [isl_ast_op_address_of
] = "&"
1225 /* Precedence in C of the various operators.
1226 * Based on http://en.wikipedia.org/wiki/Operators_in_C_and_C++
1227 * Lowest value means highest precedence.
1229 static int op_prec
[] = {
1230 [isl_ast_op_and
] = 13,
1231 [isl_ast_op_and_then
] = 13,
1232 [isl_ast_op_or
] = 14,
1233 [isl_ast_op_or_else
] = 14,
1234 [isl_ast_op_max
] = 2,
1235 [isl_ast_op_min
] = 2,
1236 [isl_ast_op_minus
] = 3,
1237 [isl_ast_op_add
] = 6,
1238 [isl_ast_op_sub
] = 6,
1239 [isl_ast_op_mul
] = 5,
1240 [isl_ast_op_div
] = 5,
1241 [isl_ast_op_fdiv_q
] = 2,
1242 [isl_ast_op_pdiv_q
] = 5,
1243 [isl_ast_op_pdiv_r
] = 5,
1244 [isl_ast_op_cond
] = 15,
1245 [isl_ast_op_select
] = 15,
1246 [isl_ast_op_eq
] = 9,
1247 [isl_ast_op_le
] = 8,
1248 [isl_ast_op_ge
] = 8,
1249 [isl_ast_op_lt
] = 8,
1250 [isl_ast_op_gt
] = 8,
1251 [isl_ast_op_call
] = 2,
1252 [isl_ast_op_access
] = 2,
1253 [isl_ast_op_member
] = 2,
1254 [isl_ast_op_address_of
] = 3
1257 /* Is the operator left-to-right associative?
1259 static int op_left
[] = {
1260 [isl_ast_op_and
] = 1,
1261 [isl_ast_op_and_then
] = 1,
1262 [isl_ast_op_or
] = 1,
1263 [isl_ast_op_or_else
] = 1,
1264 [isl_ast_op_max
] = 1,
1265 [isl_ast_op_min
] = 1,
1266 [isl_ast_op_minus
] = 0,
1267 [isl_ast_op_add
] = 1,
1268 [isl_ast_op_sub
] = 1,
1269 [isl_ast_op_mul
] = 1,
1270 [isl_ast_op_div
] = 1,
1271 [isl_ast_op_fdiv_q
] = 1,
1272 [isl_ast_op_pdiv_q
] = 1,
1273 [isl_ast_op_pdiv_r
] = 1,
1274 [isl_ast_op_cond
] = 0,
1275 [isl_ast_op_select
] = 0,
1276 [isl_ast_op_eq
] = 1,
1277 [isl_ast_op_le
] = 1,
1278 [isl_ast_op_ge
] = 1,
1279 [isl_ast_op_lt
] = 1,
1280 [isl_ast_op_gt
] = 1,
1281 [isl_ast_op_call
] = 1,
1282 [isl_ast_op_access
] = 1,
1283 [isl_ast_op_member
] = 1,
1284 [isl_ast_op_address_of
] = 0
1287 static int is_and(enum isl_ast_op_type op
)
1289 return op
== isl_ast_op_and
|| op
== isl_ast_op_and_then
;
1292 static int is_or(enum isl_ast_op_type op
)
1294 return op
== isl_ast_op_or
|| op
== isl_ast_op_or_else
;
1297 static int is_add_sub(enum isl_ast_op_type op
)
1299 return op
== isl_ast_op_add
|| op
== isl_ast_op_sub
;
1302 static int is_div_mod(enum isl_ast_op_type op
)
1304 return op
== isl_ast_op_div
|| op
== isl_ast_op_pdiv_r
;
1307 /* Do we need/want parentheses around "expr" as a subexpression of
1308 * an "op" operation? If "left" is set, then "expr" is the left-most
1311 * We only need parentheses if "expr" represents an operation.
1313 * If op has a higher precedence than expr->u.op.op, then we need
1315 * If op and expr->u.op.op have the same precedence, but the operations
1316 * are performed in an order that is different from the associativity,
1317 * then we need parentheses.
1319 * An and inside an or technically does not require parentheses,
1320 * but some compilers complain about that, so we add them anyway.
1322 * Computations such as "a / b * c" and "a % b + c" can be somewhat
1323 * difficult to read, so we add parentheses for those as well.
1325 static int sub_expr_need_parens(enum isl_ast_op_type op
,
1326 __isl_keep isl_ast_expr
*expr
, int left
)
1328 if (expr
->type
!= isl_ast_expr_op
)
1331 if (op_prec
[expr
->u
.op
.op
] > op_prec
[op
])
1333 if (op_prec
[expr
->u
.op
.op
] == op_prec
[op
] && left
!= op_left
[op
])
1336 if (is_or(op
) && is_and(expr
->u
.op
.op
))
1338 if (op
== isl_ast_op_mul
&& expr
->u
.op
.op
!= isl_ast_op_mul
&&
1339 op_prec
[expr
->u
.op
.op
] == op_prec
[op
])
1341 if (is_add_sub(op
) && is_div_mod(expr
->u
.op
.op
))
1347 /* Print "expr" as a subexpression of an "op" operation.
1348 * If "left" is set, then "expr" is the left-most operand.
1350 static __isl_give isl_printer
*print_sub_expr(__isl_take isl_printer
*p
,
1351 enum isl_ast_op_type op
, __isl_keep isl_ast_expr
*expr
, int left
)
1355 need_parens
= sub_expr_need_parens(op
, expr
, left
);
1358 p
= isl_printer_print_str(p
, "(");
1359 p
= isl_printer_print_ast_expr(p
, expr
);
1361 p
= isl_printer_print_str(p
, ")");
1365 /* Print a min or max reduction "expr".
1367 static __isl_give isl_printer
*print_min_max(__isl_take isl_printer
*p
,
1368 __isl_keep isl_ast_expr
*expr
)
1372 for (i
= 1; i
< expr
->u
.op
.n_arg
; ++i
) {
1373 p
= isl_printer_print_str(p
, op_str
[expr
->u
.op
.op
]);
1374 p
= isl_printer_print_str(p
, "(");
1376 p
= isl_printer_print_ast_expr(p
, expr
->u
.op
.args
[0]);
1377 for (i
= 1; i
< expr
->u
.op
.n_arg
; ++i
) {
1378 p
= isl_printer_print_str(p
, ", ");
1379 p
= isl_printer_print_ast_expr(p
, expr
->u
.op
.args
[i
]);
1380 p
= isl_printer_print_str(p
, ")");
1386 /* Print a function call "expr".
1388 * The first argument represents the function to be called.
1390 static __isl_give isl_printer
*print_call(__isl_take isl_printer
*p
,
1391 __isl_keep isl_ast_expr
*expr
)
1395 p
= isl_printer_print_ast_expr(p
, expr
->u
.op
.args
[0]);
1396 p
= isl_printer_print_str(p
, "(");
1397 for (i
= 1; i
< expr
->u
.op
.n_arg
; ++i
) {
1399 p
= isl_printer_print_str(p
, ", ");
1400 p
= isl_printer_print_ast_expr(p
, expr
->u
.op
.args
[i
]);
1402 p
= isl_printer_print_str(p
, ")");
1407 /* Print an array access "expr".
1409 * The first argument represents the array being accessed.
1411 static __isl_give isl_printer
*print_access(__isl_take isl_printer
*p
,
1412 __isl_keep isl_ast_expr
*expr
)
1416 p
= isl_printer_print_ast_expr(p
, expr
->u
.op
.args
[0]);
1417 for (i
= 1; i
< expr
->u
.op
.n_arg
; ++i
) {
1418 p
= isl_printer_print_str(p
, "[");
1419 p
= isl_printer_print_ast_expr(p
, expr
->u
.op
.args
[i
]);
1420 p
= isl_printer_print_str(p
, "]");
1426 /* Print "expr" to "p".
1428 * If we are printing in isl format, then we also print an indication
1429 * of the size of the expression (if it was computed).
1431 __isl_give isl_printer
*isl_printer_print_ast_expr(__isl_take isl_printer
*p
,
1432 __isl_keep isl_ast_expr
*expr
)
1437 return isl_printer_free(p
);
1439 switch (expr
->type
) {
1440 case isl_ast_expr_op
:
1441 if (expr
->u
.op
.op
== isl_ast_op_call
) {
1442 p
= print_call(p
, expr
);
1445 if (expr
->u
.op
.op
== isl_ast_op_access
) {
1446 p
= print_access(p
, expr
);
1449 if (expr
->u
.op
.n_arg
== 1) {
1450 p
= isl_printer_print_str(p
, op_str
[expr
->u
.op
.op
]);
1451 p
= print_sub_expr(p
, expr
->u
.op
.op
,
1452 expr
->u
.op
.args
[0], 0);
1455 if (expr
->u
.op
.op
== isl_ast_op_fdiv_q
) {
1456 p
= isl_printer_print_str(p
, "floord(");
1457 p
= isl_printer_print_ast_expr(p
, expr
->u
.op
.args
[0]);
1458 p
= isl_printer_print_str(p
, ", ");
1459 p
= isl_printer_print_ast_expr(p
, expr
->u
.op
.args
[1]);
1460 p
= isl_printer_print_str(p
, ")");
1463 if (expr
->u
.op
.op
== isl_ast_op_max
||
1464 expr
->u
.op
.op
== isl_ast_op_min
) {
1465 p
= print_min_max(p
, expr
);
1468 if (expr
->u
.op
.op
== isl_ast_op_cond
||
1469 expr
->u
.op
.op
== isl_ast_op_select
) {
1470 p
= isl_printer_print_ast_expr(p
, expr
->u
.op
.args
[0]);
1471 p
= isl_printer_print_str(p
, " ? ");
1472 p
= isl_printer_print_ast_expr(p
, expr
->u
.op
.args
[1]);
1473 p
= isl_printer_print_str(p
, " : ");
1474 p
= isl_printer_print_ast_expr(p
, expr
->u
.op
.args
[2]);
1477 if (expr
->u
.op
.n_arg
!= 2)
1478 isl_die(isl_printer_get_ctx(p
), isl_error_internal
,
1479 "operation should have two arguments",
1481 p
= print_sub_expr(p
, expr
->u
.op
.op
, expr
->u
.op
.args
[0], 1);
1482 if (expr
->u
.op
.op
!= isl_ast_op_member
)
1483 p
= isl_printer_print_str(p
, " ");
1484 p
= isl_printer_print_str(p
, op_str
[expr
->u
.op
.op
]);
1485 if (expr
->u
.op
.op
!= isl_ast_op_member
)
1486 p
= isl_printer_print_str(p
, " ");
1487 p
= print_sub_expr(p
, expr
->u
.op
.op
, expr
->u
.op
.args
[1], 0);
1489 case isl_ast_expr_id
:
1490 p
= isl_printer_print_str(p
, isl_id_get_name(expr
->u
.id
));
1492 case isl_ast_expr_int
:
1493 p
= isl_printer_print_val(p
, expr
->u
.v
);
1495 case isl_ast_expr_error
:
1501 isl_printer_free(p
);
1505 /* Print "node" to "p" in "isl format".
1507 static __isl_give isl_printer
*print_ast_node_isl(__isl_take isl_printer
*p
,
1508 __isl_keep isl_ast_node
*node
)
1510 p
= isl_printer_print_str(p
, "(");
1511 switch (node
->type
) {
1512 case isl_ast_node_for
:
1513 if (node
->u
.f
.degenerate
) {
1514 p
= isl_printer_print_ast_expr(p
, node
->u
.f
.init
);
1516 p
= isl_printer_print_str(p
, "init: ");
1517 p
= isl_printer_print_ast_expr(p
, node
->u
.f
.init
);
1518 p
= isl_printer_print_str(p
, ", ");
1519 p
= isl_printer_print_str(p
, "cond: ");
1520 p
= isl_printer_print_ast_expr(p
, node
->u
.f
.cond
);
1521 p
= isl_printer_print_str(p
, ", ");
1522 p
= isl_printer_print_str(p
, "inc: ");
1523 p
= isl_printer_print_ast_expr(p
, node
->u
.f
.inc
);
1525 if (node
->u
.f
.body
) {
1526 p
= isl_printer_print_str(p
, ", ");
1527 p
= isl_printer_print_str(p
, "body: ");
1528 p
= isl_printer_print_ast_node(p
, node
->u
.f
.body
);
1531 case isl_ast_node_user
:
1532 p
= isl_printer_print_ast_expr(p
, node
->u
.e
.expr
);
1534 case isl_ast_node_if
:
1535 p
= isl_printer_print_str(p
, "guard: ");
1536 p
= isl_printer_print_ast_expr(p
, node
->u
.i
.guard
);
1537 if (node
->u
.i
.then
) {
1538 p
= isl_printer_print_str(p
, ", ");
1539 p
= isl_printer_print_str(p
, "then: ");
1540 p
= isl_printer_print_ast_node(p
, node
->u
.i
.then
);
1542 if (node
->u
.i
.else_node
) {
1543 p
= isl_printer_print_str(p
, ", ");
1544 p
= isl_printer_print_str(p
, "else: ");
1545 p
= isl_printer_print_ast_node(p
, node
->u
.i
.else_node
);
1548 case isl_ast_node_block
:
1549 p
= isl_printer_print_ast_node_list(p
, node
->u
.b
.children
);
1554 p
= isl_printer_print_str(p
, ")");
1558 /* Do we need to print a block around the body "node" of a for or if node?
1560 * If the node is a block, then we need to print a block.
1561 * Also if the node is a degenerate for then we will print it as
1562 * an assignment followed by the body of the for loop, so we need a block
1564 * If the node is an if node with an else, then we print a block
1565 * to avoid spurious dangling else warnings emitted by some compilers.
1566 * If the ast_always_print_block option has been set, then we print a block.
1568 static int need_block(__isl_keep isl_ast_node
*node
)
1572 if (node
->type
== isl_ast_node_block
)
1574 if (node
->type
== isl_ast_node_for
&& node
->u
.f
.degenerate
)
1576 if (node
->type
== isl_ast_node_if
&& node
->u
.i
.else_node
)
1579 ctx
= isl_ast_node_get_ctx(node
);
1580 return isl_options_get_ast_always_print_block(ctx
);
1583 static __isl_give isl_printer
*print_ast_node_c(__isl_take isl_printer
*p
,
1584 __isl_keep isl_ast_node
*node
,
1585 __isl_keep isl_ast_print_options
*options
, int in_block
, int in_list
);
1586 static __isl_give isl_printer
*print_if_c(__isl_take isl_printer
*p
,
1587 __isl_keep isl_ast_node
*node
,
1588 __isl_keep isl_ast_print_options
*options
, int new_line
);
1590 /* Print the body "node" of a for or if node.
1591 * If "else_node" is set, then it is printed as well.
1593 * We first check if we need to print out a block.
1594 * We always print out a block if there is an else node to make
1595 * sure that the else node is matched to the correct if node.
1597 * If the else node is itself an if, then we print it as
1601 * Otherwise the else node is printed as
1606 static __isl_give isl_printer
*print_body_c(__isl_take isl_printer
*p
,
1607 __isl_keep isl_ast_node
*node
, __isl_keep isl_ast_node
*else_node
,
1608 __isl_keep isl_ast_print_options
*options
)
1611 return isl_printer_free(p
);
1613 if (!else_node
&& !need_block(node
)) {
1614 p
= isl_printer_end_line(p
);
1615 p
= isl_printer_indent(p
, 2);
1616 p
= isl_ast_node_print(node
, p
,
1617 isl_ast_print_options_copy(options
));
1618 p
= isl_printer_indent(p
, -2);
1622 p
= isl_printer_print_str(p
, " {");
1623 p
= isl_printer_end_line(p
);
1624 p
= isl_printer_indent(p
, 2);
1625 p
= print_ast_node_c(p
, node
, options
, 1, 0);
1626 p
= isl_printer_indent(p
, -2);
1627 p
= isl_printer_start_line(p
);
1628 p
= isl_printer_print_str(p
, "}");
1630 if (else_node
->type
== isl_ast_node_if
) {
1631 p
= isl_printer_print_str(p
, " else ");
1632 p
= print_if_c(p
, else_node
, options
, 0);
1634 p
= isl_printer_print_str(p
, " else");
1635 p
= print_body_c(p
, else_node
, NULL
, options
);
1638 p
= isl_printer_end_line(p
);
1643 /* Print the start of a compound statement.
1645 static __isl_give isl_printer
*start_block(__isl_take isl_printer
*p
)
1647 p
= isl_printer_start_line(p
);
1648 p
= isl_printer_print_str(p
, "{");
1649 p
= isl_printer_end_line(p
);
1650 p
= isl_printer_indent(p
, 2);
1655 /* Print the end of a compound statement.
1657 static __isl_give isl_printer
*end_block(__isl_take isl_printer
*p
)
1659 p
= isl_printer_indent(p
, -2);
1660 p
= isl_printer_start_line(p
);
1661 p
= isl_printer_print_str(p
, "}");
1662 p
= isl_printer_end_line(p
);
1667 /* Print the for node "node".
1669 * If the for node is degenerate, it is printed as
1671 * type iterator = init;
1674 * Otherwise, it is printed as
1676 * for (type iterator = init; cond; iterator += inc)
1679 * "in_block" is set if we are currently inside a block.
1680 * "in_list" is set if the current node is not alone in the block.
1681 * If we are not in a block or if the current not is not alone in the block
1682 * then we print a block around a degenerate for loop such that the variable
1683 * declaration will not conflict with any potential other declaration
1684 * of the same variable.
1686 static __isl_give isl_printer
*print_for_c(__isl_take isl_printer
*p
,
1687 __isl_keep isl_ast_node
*node
,
1688 __isl_keep isl_ast_print_options
*options
, int in_block
, int in_list
)
1694 type
= isl_options_get_ast_iterator_type(isl_printer_get_ctx(p
));
1695 if (!node
->u
.f
.degenerate
) {
1696 id
= isl_ast_expr_get_id(node
->u
.f
.iterator
);
1697 name
= isl_id_get_name(id
);
1699 p
= isl_printer_start_line(p
);
1700 p
= isl_printer_print_str(p
, "for (");
1701 p
= isl_printer_print_str(p
, type
);
1702 p
= isl_printer_print_str(p
, " ");
1703 p
= isl_printer_print_str(p
, name
);
1704 p
= isl_printer_print_str(p
, " = ");
1705 p
= isl_printer_print_ast_expr(p
, node
->u
.f
.init
);
1706 p
= isl_printer_print_str(p
, "; ");
1707 p
= isl_printer_print_ast_expr(p
, node
->u
.f
.cond
);
1708 p
= isl_printer_print_str(p
, "; ");
1709 p
= isl_printer_print_str(p
, name
);
1710 p
= isl_printer_print_str(p
, " += ");
1711 p
= isl_printer_print_ast_expr(p
, node
->u
.f
.inc
);
1712 p
= isl_printer_print_str(p
, ")");
1713 p
= print_body_c(p
, node
->u
.f
.body
, NULL
, options
);
1715 id
= isl_ast_expr_get_id(node
->u
.f
.iterator
);
1716 name
= isl_id_get_name(id
);
1718 if (!in_block
|| in_list
)
1720 p
= isl_printer_start_line(p
);
1721 p
= isl_printer_print_str(p
, type
);
1722 p
= isl_printer_print_str(p
, " ");
1723 p
= isl_printer_print_str(p
, name
);
1724 p
= isl_printer_print_str(p
, " = ");
1725 p
= isl_printer_print_ast_expr(p
, node
->u
.f
.init
);
1726 p
= isl_printer_print_str(p
, ";");
1727 p
= isl_printer_end_line(p
);
1728 p
= print_ast_node_c(p
, node
->u
.f
.body
, options
, 1, 0);
1729 if (!in_block
|| in_list
)
1736 /* Print the if node "node".
1737 * If "new_line" is set then the if node should be printed on a new line.
1739 static __isl_give isl_printer
*print_if_c(__isl_take isl_printer
*p
,
1740 __isl_keep isl_ast_node
*node
,
1741 __isl_keep isl_ast_print_options
*options
, int new_line
)
1744 p
= isl_printer_start_line(p
);
1745 p
= isl_printer_print_str(p
, "if (");
1746 p
= isl_printer_print_ast_expr(p
, node
->u
.i
.guard
);
1747 p
= isl_printer_print_str(p
, ")");
1748 p
= print_body_c(p
, node
->u
.i
.then
, node
->u
.i
.else_node
, options
);
1753 /* Print the "node" to "p".
1755 * "in_block" is set if we are currently inside a block.
1756 * If so, we do not print a block around the children of a block node.
1757 * We do this to avoid an extra block around the body of a degenerate
1760 * "in_list" is set if the current node is not alone in the block.
1762 static __isl_give isl_printer
*print_ast_node_c(__isl_take isl_printer
*p
,
1763 __isl_keep isl_ast_node
*node
,
1764 __isl_keep isl_ast_print_options
*options
, int in_block
, int in_list
)
1766 switch (node
->type
) {
1767 case isl_ast_node_for
:
1768 if (options
->print_for
)
1769 return options
->print_for(p
,
1770 isl_ast_print_options_copy(options
),
1771 node
, options
->print_for_user
);
1772 p
= print_for_c(p
, node
, options
, in_block
, in_list
);
1774 case isl_ast_node_if
:
1775 p
= print_if_c(p
, node
, options
, 1);
1777 case isl_ast_node_block
:
1780 p
= isl_ast_node_list_print(node
->u
.b
.children
, p
, options
);
1784 case isl_ast_node_user
:
1785 if (options
->print_user
)
1786 return options
->print_user(p
,
1787 isl_ast_print_options_copy(options
),
1788 node
, options
->print_user_user
);
1789 p
= isl_printer_start_line(p
);
1790 p
= isl_printer_print_ast_expr(p
, node
->u
.e
.expr
);
1791 p
= isl_printer_print_str(p
, ";");
1792 p
= isl_printer_end_line(p
);
1794 case isl_ast_node_error
:
1800 /* Print the for node "node" to "p".
1802 __isl_give isl_printer
*isl_ast_node_for_print(__isl_keep isl_ast_node
*node
,
1803 __isl_take isl_printer
*p
, __isl_take isl_ast_print_options
*options
)
1805 if (!node
|| !options
)
1807 if (node
->type
!= isl_ast_node_for
)
1808 isl_die(isl_ast_node_get_ctx(node
), isl_error_invalid
,
1809 "not a for node", goto error
);
1810 p
= print_for_c(p
, node
, options
, 0, 0);
1811 isl_ast_print_options_free(options
);
1814 isl_ast_print_options_free(options
);
1815 isl_printer_free(p
);
1819 /* Print the if node "node" to "p".
1821 __isl_give isl_printer
*isl_ast_node_if_print(__isl_keep isl_ast_node
*node
,
1822 __isl_take isl_printer
*p
, __isl_take isl_ast_print_options
*options
)
1824 if (!node
|| !options
)
1826 if (node
->type
!= isl_ast_node_if
)
1827 isl_die(isl_ast_node_get_ctx(node
), isl_error_invalid
,
1828 "not an if node", goto error
);
1829 p
= print_if_c(p
, node
, options
, 1);
1830 isl_ast_print_options_free(options
);
1833 isl_ast_print_options_free(options
);
1834 isl_printer_free(p
);
1838 /* Print "node" to "p".
1840 __isl_give isl_printer
*isl_ast_node_print(__isl_keep isl_ast_node
*node
,
1841 __isl_take isl_printer
*p
, __isl_take isl_ast_print_options
*options
)
1843 if (!options
|| !node
)
1845 p
= print_ast_node_c(p
, node
, options
, 0, 0);
1846 isl_ast_print_options_free(options
);
1849 isl_ast_print_options_free(options
);
1850 isl_printer_free(p
);
1854 /* Print "node" to "p".
1856 __isl_give isl_printer
*isl_printer_print_ast_node(__isl_take isl_printer
*p
,
1857 __isl_keep isl_ast_node
*node
)
1860 isl_ast_print_options
*options
;
1865 format
= isl_printer_get_output_format(p
);
1867 case ISL_FORMAT_ISL
:
1868 p
= print_ast_node_isl(p
, node
);
1871 options
= isl_ast_print_options_alloc(isl_printer_get_ctx(p
));
1872 p
= isl_ast_node_print(node
, p
, options
);
1875 isl_die(isl_printer_get_ctx(p
), isl_error_unsupported
,
1876 "output format not supported for ast_node",
1877 return isl_printer_free(p
));
1883 /* Print the list of nodes "list" to "p".
1885 __isl_give isl_printer
*isl_ast_node_list_print(
1886 __isl_keep isl_ast_node_list
*list
, __isl_take isl_printer
*p
,
1887 __isl_keep isl_ast_print_options
*options
)
1891 if (!p
|| !list
|| !options
)
1892 return isl_printer_free(p
);
1894 for (i
= 0; i
< list
->n
; ++i
)
1895 p
= print_ast_node_c(p
, list
->p
[i
], options
, 1, 1);
1900 #define ISL_AST_MACRO_FLOORD (1 << 0)
1901 #define ISL_AST_MACRO_MIN (1 << 1)
1902 #define ISL_AST_MACRO_MAX (1 << 2)
1903 #define ISL_AST_MACRO_ALL (ISL_AST_MACRO_FLOORD | \
1904 ISL_AST_MACRO_MIN | \
1907 /* If "expr" contains an isl_ast_op_min, isl_ast_op_max or isl_ast_op_fdiv_q
1908 * then set the corresponding bit in "macros".
1910 static int ast_expr_required_macros(__isl_keep isl_ast_expr
*expr
, int macros
)
1914 if (macros
== ISL_AST_MACRO_ALL
)
1917 if (expr
->type
!= isl_ast_expr_op
)
1920 if (expr
->u
.op
.op
== isl_ast_op_min
)
1921 macros
|= ISL_AST_MACRO_MIN
;
1922 if (expr
->u
.op
.op
== isl_ast_op_max
)
1923 macros
|= ISL_AST_MACRO_MAX
;
1924 if (expr
->u
.op
.op
== isl_ast_op_fdiv_q
)
1925 macros
|= ISL_AST_MACRO_FLOORD
;
1927 for (i
= 0; i
< expr
->u
.op
.n_arg
; ++i
)
1928 macros
= ast_expr_required_macros(expr
->u
.op
.args
[i
], macros
);
1933 static int ast_node_list_required_macros(__isl_keep isl_ast_node_list
*list
,
1936 /* If "node" contains an isl_ast_op_min, isl_ast_op_max or isl_ast_op_fdiv_q
1937 * then set the corresponding bit in "macros".
1939 static int ast_node_required_macros(__isl_keep isl_ast_node
*node
, int macros
)
1941 if (macros
== ISL_AST_MACRO_ALL
)
1944 switch (node
->type
) {
1945 case isl_ast_node_for
:
1946 macros
= ast_expr_required_macros(node
->u
.f
.init
, macros
);
1947 if (!node
->u
.f
.degenerate
) {
1948 macros
= ast_expr_required_macros(node
->u
.f
.cond
,
1950 macros
= ast_expr_required_macros(node
->u
.f
.inc
,
1953 macros
= ast_node_required_macros(node
->u
.f
.body
, macros
);
1955 case isl_ast_node_if
:
1956 macros
= ast_expr_required_macros(node
->u
.i
.guard
, macros
);
1957 macros
= ast_node_required_macros(node
->u
.i
.then
, macros
);
1958 if (node
->u
.i
.else_node
)
1959 macros
= ast_node_required_macros(node
->u
.i
.else_node
,
1962 case isl_ast_node_block
:
1963 macros
= ast_node_list_required_macros(node
->u
.b
.children
,
1966 case isl_ast_node_user
:
1967 macros
= ast_expr_required_macros(node
->u
.e
.expr
, macros
);
1969 case isl_ast_node_error
:
1976 /* If "list" contains an isl_ast_op_min, isl_ast_op_max or isl_ast_op_fdiv_q
1977 * then set the corresponding bit in "macros".
1979 static int ast_node_list_required_macros(__isl_keep isl_ast_node_list
*list
,
1984 for (i
= 0; i
< list
->n
; ++i
)
1985 macros
= ast_node_required_macros(list
->p
[i
], macros
);
1990 /* Print a macro definition for the operator "type".
1992 __isl_give isl_printer
*isl_ast_op_type_print_macro(
1993 enum isl_ast_op_type type
, __isl_take isl_printer
*p
)
1996 case isl_ast_op_min
:
1997 p
= isl_printer_start_line(p
);
1998 p
= isl_printer_print_str(p
,
1999 "#define min(x,y) ((x) < (y) ? (x) : (y))");
2000 p
= isl_printer_end_line(p
);
2002 case isl_ast_op_max
:
2003 p
= isl_printer_start_line(p
);
2004 p
= isl_printer_print_str(p
,
2005 "#define max(x,y) ((x) > (y) ? (x) : (y))");
2006 p
= isl_printer_end_line(p
);
2008 case isl_ast_op_fdiv_q
:
2009 p
= isl_printer_start_line(p
);
2010 p
= isl_printer_print_str(p
,
2011 "#define floord(n,d) "
2012 "(((n)<0) ? -((-(n)+(d)-1)/(d)) : (n)/(d))");
2013 p
= isl_printer_end_line(p
);
2022 /* Call "fn" for each type of operation that appears in "node"
2023 * and that requires a macro definition.
2025 int isl_ast_node_foreach_ast_op_type(__isl_keep isl_ast_node
*node
,
2026 int (*fn
)(enum isl_ast_op_type type
, void *user
), void *user
)
2033 macros
= ast_node_required_macros(node
, 0);
2035 if (macros
& ISL_AST_MACRO_MIN
&& fn(isl_ast_op_min
, user
) < 0)
2037 if (macros
& ISL_AST_MACRO_MAX
&& fn(isl_ast_op_max
, user
) < 0)
2039 if (macros
& ISL_AST_MACRO_FLOORD
&& fn(isl_ast_op_fdiv_q
, user
) < 0)
2045 static int ast_op_type_print_macro(enum isl_ast_op_type type
, void *user
)
2047 isl_printer
**p
= user
;
2049 *p
= isl_ast_op_type_print_macro(type
, *p
);
2054 /* Print macro definitions for all the macros used in the result
2055 * of printing "node.
2057 __isl_give isl_printer
*isl_ast_node_print_macros(
2058 __isl_keep isl_ast_node
*node
, __isl_take isl_printer
*p
)
2060 if (isl_ast_node_foreach_ast_op_type(node
,
2061 &ast_op_type_print_macro
, &p
) < 0)
2062 return isl_printer_free(p
);