include/pet.h

   1 #ifndef PET_H
   2 #define PET_H
   3
   4 #include <isl/aff.h>
   5 #include <isl/arg.h>
   6 #include <isl/ast_build.h>
   7 #include <isl/set.h>
   8 #include <isl/map.h>
   9 #include <isl/union_map.h>
  10 #include <isl/printer.h>
  11 #include <isl/id_to_ast_expr.h>
  12 #include <isl/id_to_pw_aff.h>
  13 #include <isl/schedule.h>
  14
  15 #if defined(__cplusplus)
  16 extern "C" {
  17 #endif
  18
  19 struct pet_options;
  20 ISL_ARG_DECL(pet_options, struct pet_options, pet_options_args)
  21
  22 /* Create an isl_ctx that references the pet options. */
  23 isl_ctx *isl_ctx_alloc_with_pet_options();
  24
  25 /* If autodetect is set, any valid scop is extracted.
  26  * Otherwise, the scop needs to be delimited by pragmas.
  27  */
  28 int pet_options_set_autodetect(isl_ctx *ctx, int val);
  29 int pet_options_get_autodetect(isl_ctx *ctx);
  30
  31 int pet_options_set_detect_conditional_assignment(isl_ctx *ctx, int val);
  32 int pet_options_get_detect_conditional_assignment(isl_ctx *ctx);
  33
  34 /* If encapsulate-dynamic-control is set, then any dynamic control
  35  * in the input program will be encapsulated in macro statements.
  36  * This means in particular that no statements with arguments
  37  * will be created.
  38  */
  39 int pet_options_set_encapsulate_dynamic_control(isl_ctx *ctx, int val);
  40 int pet_options_get_encapsulate_dynamic_control(isl_ctx *ctx);
  41
  42 #define PET_OVERFLOW_AVOID      0
  43 #define PET_OVERFLOW_IGNORE     1
  44 int pet_options_set_signed_overflow(isl_ctx *ctx, int val);
  45 int pet_options_get_signed_overflow(isl_ctx *ctx);
  46
  47 struct pet_loc;
  48 typedef struct pet_loc pet_loc;
  49
  50 /* Return an additional reference to "loc". */
  51 __isl_give pet_loc *pet_loc_copy(__isl_keep pet_loc *loc);
  52 /* Free a reference to "loc". */
  53 pet_loc *pet_loc_free(__isl_take pet_loc *loc);
  54
  55 /* Return the offset in the input file of the start of "loc". */
  56 unsigned pet_loc_get_start(__isl_keep pet_loc *loc);
  57 /* Return the offset in the input file of the character after "loc". */
  58 unsigned pet_loc_get_end(__isl_keep pet_loc *loc);
  59 /* Return the line number of a line within the "loc" region. */
  60 int pet_loc_get_line(__isl_keep pet_loc *loc);
  61 /* Return the indentation of the "loc" region. */
  62 __isl_keep const char *pet_loc_get_indent(__isl_keep pet_loc *loc);
  63
  64 enum pet_expr_type {
  65         pet_expr_error = -1,
  66         pet_expr_access,
  67         pet_expr_call,
  68         pet_expr_cast,
  69         pet_expr_int,
  70         pet_expr_double,
  71         pet_expr_op
  72 };
  73
  74 enum pet_op_type {
  75         /* only compound assignments operators before assignment */
  76         pet_op_add_assign,
  77         pet_op_sub_assign,
  78         pet_op_mul_assign,
  79         pet_op_div_assign,
  80         pet_op_assign,
  81         pet_op_add,
  82         pet_op_sub,
  83         pet_op_mul,
  84         pet_op_div,
  85         pet_op_mod,
  86         pet_op_shl,
  87         pet_op_shr,
  88         pet_op_eq,
  89         pet_op_ne,
  90         pet_op_le,
  91         pet_op_ge,
  92         pet_op_lt,
  93         pet_op_gt,
  94         pet_op_minus,
  95         pet_op_post_inc,
  96         pet_op_post_dec,
  97         pet_op_pre_inc,
  98         pet_op_pre_dec,
  99         pet_op_address_of,
 100         pet_op_assume,
 101         pet_op_kill,
 102         pet_op_and,
 103         pet_op_xor,
 104         pet_op_or,
 105         pet_op_not,
 106         pet_op_land,
 107         pet_op_lor,
 108         pet_op_lnot,
 109         pet_op_cond,
 110         pet_op_last
 111 };
 112
 113 /* Index into the pet_expr->args array when pet_expr->type == pet_expr_unary
 114  */
 115 enum pet_un_arg_type {
 116         pet_un_arg
 117 };
 118
 119 /* Indices into the pet_expr->args array when
 120  * pet_expr->type == pet_expr_binary
 121  */
 122 enum pet_bin_arg_type {
 123         pet_bin_lhs,
 124         pet_bin_rhs
 125 };
 126
 127 /* Indices into the pet_expr->args array when
 128  * pet_expr->type == pet_expr_ternary
 129  */
 130 enum pet_ter_arg_type {
 131         pet_ter_cond,
 132         pet_ter_true,
 133         pet_ter_false
 134 };
 135
 136 struct pet_expr;
 137 typedef struct pet_expr pet_expr;
 138
 139 /* Return an additional reference to "expr". */
 140 __isl_give pet_expr *pet_expr_copy(__isl_keep pet_expr *expr);
 141 /* Free a reference to "expr". */
 142 __isl_null pet_expr *pet_expr_free(__isl_take pet_expr *expr);
 143
 144 /* Return the isl_ctx in which "expr" was created. */
 145 isl_ctx *pet_expr_get_ctx(__isl_keep pet_expr *expr);
 146
 147 /* Return the type of "expr". */
 148 enum pet_expr_type pet_expr_get_type(__isl_keep pet_expr *expr);
 149 /* Return the number of arguments of "expr". */
 150 int pet_expr_get_n_arg(__isl_keep pet_expr *expr);
 151 /* Set the number of arguments of "expr" to "n". */
 152 __isl_give pet_expr *pet_expr_set_n_arg(__isl_take pet_expr *expr, int n);
 153 /* Return the argument of "expr" at position "pos". */
 154 __isl_give pet_expr *pet_expr_get_arg(__isl_keep pet_expr *expr, int pos);
 155 /* Replace the argument of "expr" at position "pos" by "arg". */
 156 __isl_give pet_expr *pet_expr_set_arg(__isl_take pet_expr *expr, int pos,
 157         __isl_take pet_expr *arg);
 158
 159 /* Return the operation type of operation expression "expr". */
 160 enum pet_op_type pet_expr_op_get_type(__isl_keep pet_expr *expr);
 161 /* Replace the operation type of operation expression "expr" by "type". */
 162 __isl_give pet_expr *pet_expr_op_set_type(__isl_take pet_expr *expr,
 163         enum pet_op_type type);
 164
 165 /* Construct a (read) access pet_expr from an index expression. */
 166 __isl_give pet_expr *pet_expr_from_index(__isl_take isl_multi_pw_aff *index);
 167
 168 /* Does "expr" represent an affine expression? */
 169 int pet_expr_is_affine(__isl_keep pet_expr *expr);
 170 /* Does the access expression "expr" read the accessed elements? */
 171 int pet_expr_access_is_read(__isl_keep pet_expr *expr);
 172 /* Does the access expression "expr" write to the accessed elements? */
 173 int pet_expr_access_is_write(__isl_keep pet_expr *expr);
 174 /* Mark "expr" as a read dependening on "read". */
 175 __isl_give pet_expr *pet_expr_access_set_read(__isl_take pet_expr *expr,
 176         int read);
 177 /* Mark "expr" as a write dependening on "write". */
 178 __isl_give pet_expr *pet_expr_access_set_write(__isl_take pet_expr *expr,
 179         int write);
 180 /* Mark "expr" as a kill dependening on "kill". */
 181 __isl_give pet_expr *pet_expr_access_set_kill(__isl_take pet_expr *expr,
 182         int kill);
 183 /* Return the reference identifier of access expression "expr". */
 184 __isl_give isl_id *pet_expr_access_get_ref_id(__isl_keep pet_expr *expr);
 185 /* Replace the reference identifier of access expression "expr" by "ref_id". */
 186 __isl_give pet_expr *pet_expr_access_set_ref_id(__isl_take pet_expr *expr,
 187         __isl_take isl_id *ref_id);
 188 /* Return the identifier of the outer array accessed by "expr". */
 189 __isl_give isl_id *pet_expr_access_get_id(__isl_keep pet_expr *expr);
 190 /* Return the index expression of access expression "expr". */
 191 __isl_give isl_multi_pw_aff *pet_expr_access_get_index(
 192         __isl_keep pet_expr *expr);
 193
 194 /* Return the potential read access relation of access expression "expr". */
 195 __isl_give isl_union_map *pet_expr_access_get_may_read(
 196         __isl_keep pet_expr *expr);
 197 /* Return the potential write access relation of access expression "expr". */
 198 __isl_give isl_union_map *pet_expr_access_get_may_write(
 199         __isl_keep pet_expr *expr);
 200 /* Return the definite write access relation of access expression "expr". */
 201 __isl_give isl_union_map *pet_expr_access_get_must_write(
 202         __isl_keep pet_expr *expr);
 203 /* Return the argument dependent potential read access relation of "expr". */
 204 __isl_give isl_union_map *pet_expr_access_get_dependent_may_read(
 205         __isl_keep pet_expr *expr);
 206 /* Return the argument dependent potential write access relation of "expr". */
 207 __isl_give isl_union_map *pet_expr_access_get_dependent_may_write(
 208         __isl_keep pet_expr *expr);
 209 /* Return the argument dependent definite write access relation of "expr". */
 210 __isl_give isl_union_map *pet_expr_access_get_dependent_must_write(
 211         __isl_keep pet_expr *expr);
 212 /* Return the tagged potential read access relation of access "expr". */
 213 __isl_give isl_union_map *pet_expr_access_get_tagged_may_read(
 214         __isl_keep pet_expr *expr);
 215 /* Return the tagged potential write access relation of access "expr". */
 216 __isl_give isl_union_map *pet_expr_access_get_tagged_may_write(
 217         __isl_keep pet_expr *expr);
 218
 219 /* Return the name of the function called by "expr". */
 220 __isl_keep const char *pet_expr_call_get_name(__isl_keep pet_expr *expr);
 221 /* Replace the name of the function called by "expr" by "name". */
 222 __isl_give pet_expr *pet_expr_call_set_name(__isl_take pet_expr *expr,
 223         __isl_keep const char *name);
 224
 225 /* Create a pet_expr representing a cast of "arg" to "type_name". */
 226 __isl_give pet_expr *pet_expr_new_cast(const char *type_name,
 227         __isl_take pet_expr *arg);
 228 /* Replace the type of the cast performed by "expr" by "name". */
 229 __isl_give pet_expr *pet_expr_cast_set_type_name(__isl_take pet_expr *expr,
 230         __isl_keep const char *name);
 231
 232 /* Return the value of the integer represented by "expr". */
 233 __isl_give isl_val *pet_expr_int_get_val(__isl_keep pet_expr *expr);
 234 /* Replace the value of the integer represented by "expr" by "v". */
 235 __isl_give pet_expr *pet_expr_int_set_val(__isl_take pet_expr *expr,
 236         __isl_take isl_val *v);
 237
 238 /* Return a string representation of the double expression "expr". */
 239 __isl_give char *pet_expr_double_get_str(__isl_keep pet_expr *expr);
 240 /* Replace value and string representation of the double expression "expr" */
 241 __isl_give pet_expr *pet_expr_double_set(__isl_take pet_expr *expr,
 242         double d, __isl_keep const char *s);
 243
 244 /* Call "fn" on each of the subexpressions of "expr" of type pet_expr_access. */
 245 int pet_expr_foreach_access_expr(__isl_keep pet_expr *expr,
 246         int (*fn)(__isl_keep pet_expr *expr, void *user), void *user);
 247 /* Call "fn" on each of the subexpressions of "expr" of type pet_expr_call. */
 248 int pet_expr_foreach_call_expr(__isl_keep pet_expr *expr,
 249         int (*fn)(__isl_keep pet_expr *expr, void *user), void *user);
 250
 251 struct pet_context;
 252 typedef struct pet_context pet_context;
 253
 254 /* Create a context with the given domain. */
 255 __isl_give pet_context *pet_context_alloc(__isl_take isl_set *domain);
 256 /* Return an additional reference to "pc". */
 257 __isl_give pet_context *pet_context_copy(__isl_keep pet_context *pc);
 258 /* Free a reference to "pc". */
 259 __isl_null pet_context *pet_context_free(__isl_take pet_context *pc);
 260
 261 /* Return the isl_ctx in which "pc" was created. */
 262 isl_ctx *pet_context_get_ctx(__isl_keep pet_context *pc);
 263
 264 /* Extract an affine expression defined over the domain of "pc" from "expr"
 265  * or return NaN.
 266  */
 267 __isl_give isl_pw_aff *pet_expr_extract_affine(__isl_keep pet_expr *expr,
 268         __isl_keep pet_context *pc);
 269
 270 void pet_expr_dump(__isl_keep pet_expr *expr);
 271
 272 enum pet_tree_type {
 273         pet_tree_error = -1,
 274         pet_tree_expr,
 275         pet_tree_block,
 276         pet_tree_break,
 277         pet_tree_continue,
 278         pet_tree_decl,          /* A declaration without initialization */
 279         pet_tree_decl_init,     /* A declaration with initialization */
 280         pet_tree_if,            /* An if without an else branch */
 281         pet_tree_if_else,       /* An if with an else branch */
 282         pet_tree_for,
 283         pet_tree_infinite_loop,
 284         pet_tree_while
 285 };
 286
 287 struct pet_tree;
 288 typedef struct pet_tree pet_tree;
 289
 290 /* Return the isl_ctx in which "tree" was created. */
 291 isl_ctx *pet_tree_get_ctx(__isl_keep pet_tree *tree);
 292
 293 /* Return an additional reference to "tree". */
 294 __isl_give pet_tree *pet_tree_copy(__isl_keep pet_tree *tree);
 295 /* Free a reference to "tree". */
 296 __isl_null pet_tree *pet_tree_free(__isl_take pet_tree *tree);
 297
 298 /* Return the location of "tree". */
 299 __isl_give pet_loc *pet_tree_get_loc(__isl_keep pet_tree *tree);
 300
 301 /* Return the type of "tree". */
 302 enum pet_tree_type pet_tree_get_type(__isl_keep pet_tree *tree);
 303
 304 /* Return the expression of the expression tree "tree". */
 305 __isl_give pet_expr *pet_tree_expr_get_expr(__isl_keep pet_tree *tree);
 306
 307 /* Return the number of children of the block tree "tree". */
 308 int pet_tree_block_n_child(__isl_keep pet_tree *tree);
 309 /* Return child "pos" of the block tree "tree". */
 310 __isl_give pet_tree *pet_tree_block_get_child(__isl_keep pet_tree *tree,
 311         int pos);
 312
 313 /* Is "tree" a declaration (with or without initialization)? */
 314 int pet_tree_is_decl(__isl_keep pet_tree *tree);
 315 /* Return the variable declared by the declaration tree "tree". */
 316 __isl_give pet_expr *pet_tree_decl_get_var(__isl_keep pet_tree *tree);
 317 /* Return the initial value of the pet_tree_decl_init tree "tree". */
 318 __isl_give pet_expr *pet_tree_decl_get_init(__isl_keep pet_tree *tree);
 319
 320 /* Return the condition of the if tree "tree". */
 321 __isl_give pet_expr *pet_tree_if_get_cond(__isl_keep pet_tree *tree);
 322 /* Return the then branch of the if tree "tree". */
 323 __isl_give pet_tree *pet_tree_if_get_then(__isl_keep pet_tree *tree);
 324 /* Return the else branch of the if tree with else branch "tree". */
 325 __isl_give pet_tree *pet_tree_if_get_else(__isl_keep pet_tree *tree);
 326
 327 /* Is "tree" a for loop, a while loop or an infinite loop? */
 328 int pet_tree_is_loop(__isl_keep pet_tree *tree);
 329 /* Return the induction variable of the for loop "tree" */
 330 __isl_give pet_expr *pet_tree_loop_get_var(__isl_keep pet_tree *tree);
 331 /* Return the initial value of the induction variable of the for loop "tree" */
 332 __isl_give pet_expr *pet_tree_loop_get_init(__isl_keep pet_tree *tree);
 333 /* Return the condition of the loop tree "tree" */
 334 __isl_give pet_expr *pet_tree_loop_get_cond(__isl_keep pet_tree *tree);
 335 /* Return the induction variable of the for loop "tree" */
 336 __isl_give pet_expr *pet_tree_loop_get_inc(__isl_keep pet_tree *tree);
 337 /* Return the body of the loop tree "tree" */
 338 __isl_give pet_tree *pet_tree_loop_get_body(__isl_keep pet_tree *tree);
 339
 340 /* Call "fn" on each top-level expression in the nodes of "tree" */
 341 int pet_tree_foreach_expr(__isl_keep pet_tree *tree,
 342         int (*fn)(__isl_keep pet_expr *expr, void *user), void *user);
 343 /* Call "fn" on each access subexpression in the nodes of "tree" */
 344 int pet_tree_foreach_access_expr(__isl_keep pet_tree *tree,
 345         int (*fn)(__isl_keep pet_expr *expr, void *user), void *user);
 346 /* Modify all call subexpressions in the nodes of "tree" through "fn". */
 347 __isl_give pet_tree *pet_tree_map_call_expr(__isl_take pet_tree *tree,
 348         __isl_give pet_expr *(*fn)(__isl_take pet_expr *expr, void *user),
 349         void *user);
 350
 351 void pet_tree_dump(__isl_keep pet_tree *tree);
 352
 353 /* "loc" represents the region of the source code that is represented
 354  * by this statement.
 355  *
 356  * If the statement has arguments, i.e., n_arg != 0, then
 357  * "domain" is a wrapped map, mapping the iteration domain
 358  * to the values of the arguments for which this statement
 359  * is executed.
 360  * Otherwise, it is simply the iteration domain.
 361  *
 362  * If one of the arguments is an access expression that accesses
 363  * more than one element for a given iteration, then the constraints
 364  * on the value of this argument (encoded in "domain") should be satisfied
 365  * for all of those accessed elements.
 366  */
 367 struct pet_stmt {
 368         pet_loc *loc;
 369         isl_set *domain;
 370         pet_tree *body;
 371
 372         unsigned n_arg;
 373         pet_expr **args;
 374 };
 375
 376 /* Return the iteration space of "stmt". */
 377 __isl_give isl_space *pet_stmt_get_space(struct pet_stmt *stmt);
 378
 379 /* Is "stmt" an assignment statement? */
 380 int pet_stmt_is_assign(struct pet_stmt *stmt);
 381 /* Is "stmt" a kill statement? */
 382 int pet_stmt_is_kill(struct pet_stmt *stmt);
 383
 384 /* pet_stmt_build_ast_exprs is currently limited to only handle
 385  * some forms of data dependent accesses.
 386  * If pet_stmt_can_build_ast_exprs returns 1, then pet_stmt_build_ast_exprs
 387  * can safely be called on "stmt".
 388  */
 389 int pet_stmt_can_build_ast_exprs(struct pet_stmt *stmt);
 390 /* Construct an associative array from reference identifiers of
 391  * access expressions in "stmt" to the corresponding isl_ast_expr.
 392  * Each index expression is first transformed through "fn_index"
 393  * (if not NULL).  Then an AST expression is generated using "build".
 394  * Finally, the AST expression is transformed using "fn_expr"
 395  * (if not NULL).
 396  */
 397 __isl_give isl_id_to_ast_expr *pet_stmt_build_ast_exprs(struct pet_stmt *stmt,
 398         __isl_keep isl_ast_build *build,
 399         __isl_give isl_multi_pw_aff *(*fn_index)(
 400                 __isl_take isl_multi_pw_aff *mpa, __isl_keep isl_id *id,
 401                 void *user), void *user_index,
 402         __isl_give isl_ast_expr *(*fn_expr)(__isl_take isl_ast_expr *expr,
 403                 __isl_keep isl_id *id, void *user), void *user_expr);
 404
 405 /* Print "stmt" to "p".
 406  *
 407  * The access expressions in "stmt" are replaced by the isl_ast_expr
 408  * associated to its reference identifier in "ref2expr".
 409  */
 410 __isl_give isl_printer *pet_stmt_print_body(struct pet_stmt *stmt,
 411         __isl_take isl_printer *p, __isl_keep isl_id_to_ast_expr *ref2expr);
 412
 413 /* This structure represents a defined type.
 414  * "name" is the name of the type, while "definition" is a string
 415  * representation of its definition.
 416  */
 417 struct pet_type {
 418         char *name;
 419         char *definition;
 420 };
 421
 422 /* context holds constraints on the parameter that ensure that
 423  * this array has a valid (i.e., non-negative) size
 424  *
 425  * extent holds constraints on the indices
 426  *
 427  * value_bounds holds constraints on the elements of the array
 428  * and may be NULL if no such constraints were specified by the user
 429  *
 430  * element_size is the size in bytes of each array element
 431  * element_type is the type of the array elements.
 432  * element_is_record is set if this type is a record type.
 433  *
 434  * live_out is set if the array appears in a live-out pragma
 435  *
 436  * if uniquely_defined is set then the array is written by a single access
 437  * such that any element that is ever read
 438  * is known to be assigned exactly once before the read
 439  *
 440  * declared is set if the array was declared somewhere inside the scop.
 441  * exposed is set if the declared array is visible outside the scop.
 442  */
 443 struct pet_array {
 444         isl_set *context;
 445         isl_set *extent;
 446         isl_set *value_bounds;
 447         char *element_type;
 448         int element_is_record;
 449         int element_size;
 450         int live_out;
 451         int uniquely_defined;
 452         int declared;
 453         int exposed;
 454 };
 455
 456 /* This structure represents an implication on a boolean filter.
 457  * In particular, if the filter value of an element in the domain
 458  * of "extension" is equal to "satisfied", then the filter values
 459  * of the corresponding images in "extension" are also equal
 460  * to "satisfied".
 461  */
 462 struct pet_implication {
 463         int satisfied;
 464         isl_map *extension;
 465 };
 466
 467 /* This structure represents an independence implied by a for loop
 468  * that is marked as independent in the source code.
 469  * "filter" contains pairs of statement instances that are guaranteed
 470  * not to be dependent on each other based on the independent for loop,
 471  * assuming that no dependences carried by this loop are implied
 472  * by the variables in "local".
 473  * "local" contains the variables that are local to the loop that was
 474  * marked independent.
 475  */
 476 struct pet_independence {
 477         isl_union_map *filter;
 478         isl_union_set *local;
 479 };
 480
 481 /* "loc" represents the region of the source code that is represented
 482  * by this scop.
 483  * If the scop was detected based on scop and endscop pragmas, then
 484  * the lines containing these pragmas are included in this region.
 485  * In the final result, the context describes the set of parameter values
 486  * for which the scop can be executed.
 487  * During the construction of the pet_scop, the context lives in a set space
 488  * where each dimension refers to an outer loop.
 489  * context_value describes assignments to the parameters (if any)
 490  * outside of the scop.
 491  *
 492  * "schedule" is the schedule of the statements in the scop.
 493  *
 494  * The n_type types define types that may be referenced from by the arrays.
 495  *
 496  * The n_implication implications describe implications on boolean filters.
 497  *
 498  * The n_independence independences describe independences implied
 499  * by for loops that are marked independent in the source code.
 500  */
 501 struct pet_scop {
 502         pet_loc *loc;
 503
 504         isl_set *context;
 505         isl_set *context_value;
 506         isl_schedule *schedule;
 507
 508         int n_type;
 509         struct pet_type **types;
 510
 511         int n_array;
 512         struct pet_array **arrays;
 513
 514         int n_stmt;
 515         struct pet_stmt **stmts;
 516
 517         int n_implication;
 518         struct pet_implication **implications;
 519
 520         int n_independence;
 521         struct pet_independence **independences;
 522 };
 523 typedef struct pet_scop pet_scop;
 524
 525 /* Return a textual representation of the operator. */
 526 const char *pet_op_str(enum pet_op_type op);
 527 int pet_op_is_inc_dec(enum pet_op_type op);
 528
 529 /* Extract a pet_scop from a C source file.
 530  * If function is not NULL, then the pet_scop is extracted from
 531  * a function with that name.
 532  */
 533 __isl_give pet_scop *pet_scop_extract_from_C_source(isl_ctx *ctx,
 534         const char *filename, const char *function);
 535
 536 /* Transform the C source file "input" by rewriting each scop
 537  * When autodetecting scops, at most one scop per function is rewritten.
 538  * The transformed C code is written to "output".
 539  */
 540 int pet_transform_C_source(isl_ctx *ctx, const char *input, FILE *output,
 541         __isl_give isl_printer *(*transform)(__isl_take isl_printer *p,
 542                 __isl_take pet_scop *scop, void *user), void *user);
 543 /* Given a scop and a printer passed to a pet_transform_C_source callback,
 544  * print the original corresponding code to the printer.
 545  */
 546 __isl_give isl_printer *pet_scop_print_original(__isl_keep pet_scop *scop,
 547         __isl_take isl_printer *p);
 548
 549 /* Update all isl_sets and isl_maps such that they all have the same
 550  * parameters in the same order.
 551  */
 552 __isl_give pet_scop *pet_scop_align_params(__isl_take pet_scop *scop);
 553
 554 /* Does "scop" contain any data dependent accesses? */
 555 int pet_scop_has_data_dependent_accesses(__isl_keep pet_scop *scop);
 556 /* Does "scop" contain any data dependent conditions? */
 557 int pet_scop_has_data_dependent_conditions(__isl_keep pet_scop *scop);
 558 /* pet_stmt_build_ast_exprs is currently limited to only handle
 559  * some forms of data dependent accesses.
 560  * If pet_scop_can_build_ast_exprs returns 1, then pet_stmt_build_ast_exprs
 561  * can safely be called on all statements in the scop.
 562  */
 563 int pet_scop_can_build_ast_exprs(__isl_keep pet_scop *scop);
 564
 565 void pet_scop_dump(__isl_keep pet_scop *scop);
 566 __isl_null pet_scop *pet_scop_free(__isl_take pet_scop *scop);
 567
 568 /* Return the context of "scop". */
 569 __isl_give isl_set *pet_scop_get_context(__isl_keep pet_scop *scop);
 570 /* Return the schedule of "scop". */
 571 __isl_give isl_schedule *pet_scop_get_schedule(__isl_keep pet_scop *scop);
 572 /* Return the set of all statement instances. */
 573 __isl_give isl_union_set *pet_scop_get_instance_set(__isl_keep pet_scop *scop);
 574 /* Return the potential read access relation. */
 575 __isl_give isl_union_map *pet_scop_get_may_reads(__isl_keep pet_scop *scop);
 576 /* Return the tagged potential read access relation. */
 577 __isl_give isl_union_map *pet_scop_get_tagged_may_reads(
 578         __isl_keep pet_scop *scop);
 579 /* Return the potential write access relation. */
 580 __isl_give isl_union_map *pet_scop_get_may_writes(__isl_keep pet_scop *scop);
 581 /* Return the definite write access relation. */
 582 __isl_give isl_union_map *pet_scop_get_must_writes(__isl_keep pet_scop *scop);
 583 /* Return the tagged potential write access relation. */
 584 __isl_give isl_union_map *pet_scop_get_tagged_may_writes(
 585         __isl_keep pet_scop *scop);
 586 /* Return the tagged definite write access relation. */
 587 __isl_give isl_union_map *pet_scop_get_tagged_must_writes(
 588         __isl_keep pet_scop *scop);
 589 /* Return the definite kill access relation. */
 590 __isl_give isl_union_map *pet_scop_get_must_kills(__isl_keep pet_scop *scop);
 591 /* Return the tagged definite kill access relation. */
 592 __isl_give isl_union_map *pet_scop_get_tagged_must_kills(
 593         __isl_keep pet_scop *scop);
 594
 595 /* Compute a mapping from all outermost arrays (of structs) in scop
 596  * to their innermost members.
 597  */
 598 __isl_give isl_union_map *pet_scop_compute_outer_to_inner(
 599         __isl_keep pet_scop *scop);
 600 /* Compute a mapping from all outermost arrays (of structs) in scop
 601  * to their members, including the outermost arrays themselves.
 602  */
 603 __isl_give isl_union_map *pet_scop_compute_outer_to_any(
 604         __isl_keep pet_scop *scop);
 605
 606 #if defined(__cplusplus)
 607 }
 608 #endif
 609
 610 #endif