| File: | build/source/polly/lib/External/isl/isl_pw_templ.c |
| Warning: | line 689, column 2 Value stored to 'ctx' is never read |
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| 1 | /* |
| 2 | * Copyright 2010-2011 INRIA Saclay |
| 3 | * Copyright 2011 Sven Verdoolaege |
| 4 | * Copyright 2012-2014 Ecole Normale Superieure |
| 5 | * |
| 6 | * Use of this software is governed by the MIT license |
| 7 | * |
| 8 | * Written by Sven Verdoolaege, INRIA Saclay - Ile-de-France, |
| 9 | * Parc Club Orsay Universite, ZAC des vignes, 4 rue Jacques Monod, |
| 10 | * 91893 Orsay, France |
| 11 | * and Ecole Normale Superieure, 45 rue d’Ulm, 75230 Paris, France |
| 12 | */ |
| 13 | |
| 14 | #include <isl/id.h> |
| 15 | #include <isl/aff.h> |
| 16 | #include <isl_sort.h> |
| 17 | #include <isl_val_private.h> |
| 18 | |
| 19 | #include <isl_pw_macro.h> |
| 20 | |
| 21 | #include "opt_type.h" |
| 22 | |
| 23 | __isl_give PWisl_pw_union_pw_aff *FN(PW,alloc_size)isl_pw_union_pw_aff_alloc_size(__isl_take isl_space *space |
| 24 | OPT_TYPE_PARAM, int n) |
| 25 | { |
| 26 | isl_ctx *ctx; |
| 27 | struct PWisl_pw_union_pw_aff *pw; |
| 28 | |
| 29 | if (!space) |
| 30 | return NULL((void*)0); |
| 31 | ctx = isl_space_get_ctx(space); |
| 32 | isl_assert(ctx, n >= 0, goto error)do { if (n >= 0) break; do { isl_handle_error(ctx, isl_error_unknown , "Assertion \"" "n >= 0" "\" failed", "polly/lib/External/isl/isl_pw_templ.c" , 32); goto error; } while (0); } while (0); |
| 33 | pw = isl_alloc(ctx, struct PW,((struct isl_pw_union_pw_aff *)isl_malloc_or_die(ctx, sizeof( struct isl_pw_union_pw_aff) + (n - 1) * sizeof(struct isl_pw_union_pw_aff_piece ))) |
| 34 | sizeof(struct PW) + (n - 1) * sizeof(S(PW,piece)))((struct isl_pw_union_pw_aff *)isl_malloc_or_die(ctx, sizeof( struct isl_pw_union_pw_aff) + (n - 1) * sizeof(struct isl_pw_union_pw_aff_piece ))); |
| 35 | if (!pw) |
| 36 | goto error; |
| 37 | |
| 38 | pw->ref = 1; |
| 39 | OPT_SET_TYPE(pw->, type); |
| 40 | pw->size = n; |
| 41 | pw->n = 0; |
| 42 | pw->dim = space; |
| 43 | return pw; |
| 44 | error: |
| 45 | isl_space_free(space); |
| 46 | return NULL((void*)0); |
| 47 | } |
| 48 | |
| 49 | __isl_give PWisl_pw_union_pw_aff *FN(PW,ZERO)isl_pw_union_pw_aff_empty(__isl_take isl_space *space OPT_TYPE_PARAM) |
| 50 | { |
| 51 | return FN(PW,alloc_size)isl_pw_union_pw_aff_alloc_size(space OPT_TYPE_ARG(NO_LOC), 0); |
| 52 | } |
| 53 | |
| 54 | /* Add a piece with domain "set" and base expression "el" |
| 55 | * to the piecewise expression "pw". |
| 56 | * |
| 57 | * Do this independently of the values of "set" and "el", |
| 58 | * such that this function can be used by isl_pw_*_dup. |
| 59 | */ |
| 60 | static __isl_give PWisl_pw_union_pw_aff *FN(PW,add_dup_piece)isl_pw_union_pw_aff_add_dup_piece(__isl_take PWisl_pw_union_pw_aff *pw, |
| 61 | __isl_take isl_setisl_map *set, __isl_take ELisl_union_pw_aff *el) |
| 62 | { |
| 63 | isl_ctx *ctx; |
| 64 | isl_space *el_dim = NULL((void*)0); |
| 65 | |
| 66 | if (!pw || !set || !el) |
| 67 | goto error; |
| 68 | |
| 69 | ctx = isl_set_get_ctx(set); |
| 70 | if (!OPT_EQUAL_TYPES(pw->, el->)1) |
| 71 | isl_die(ctx, isl_error_invalid, "fold types don't match",do { isl_handle_error(ctx, isl_error_invalid, "fold types don't match" , "polly/lib/External/isl/isl_pw_templ.c", 72); goto error; } while (0) |
| 72 | goto error)do { isl_handle_error(ctx, isl_error_invalid, "fold types don't match" , "polly/lib/External/isl/isl_pw_templ.c", 72); goto error; } while (0); |
| 73 | el_dim = FN(EL,get_space(el))isl_union_pw_aff_get_space(el); |
| 74 | isl_assert(ctx, isl_space_is_equal(pw->dim, el_dim), goto error)do { if (isl_space_is_equal(pw->dim, el_dim)) break; do { isl_handle_error (ctx, isl_error_unknown, "Assertion \"" "isl_space_is_equal(pw->dim, el_dim)" "\" failed", "polly/lib/External/isl/isl_pw_templ.c", 74); goto error; } while (0); } while (0); |
| 75 | isl_assert(ctx, pw->n < pw->size, goto error)do { if (pw->n < pw->size) break; do { isl_handle_error (ctx, isl_error_unknown, "Assertion \"" "pw->n < pw->size" "\" failed", "polly/lib/External/isl/isl_pw_templ.c", 75); goto error; } while (0); } while (0); |
| 76 | |
| 77 | pw->p[pw->n].set = set; |
| 78 | pw->p[pw->n].FIELDmaff = el; |
| 79 | pw->n++; |
| 80 | |
| 81 | isl_space_free(el_dim); |
| 82 | return pw; |
| 83 | error: |
| 84 | isl_space_free(el_dim); |
| 85 | FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 86 | isl_set_free(set); |
| 87 | FN(EL,free)isl_union_pw_aff_free(el); |
| 88 | return NULL((void*)0); |
| 89 | } |
| 90 | |
| 91 | /* Add a piece with domain "set" and base expression "el" |
| 92 | * to the piecewise expression "pw", provided the domain |
| 93 | * is not obviously empty and the base expression |
| 94 | * is not equal to the default value. |
| 95 | */ |
| 96 | __isl_give PWisl_pw_union_pw_aff *FN(PW,add_piece)isl_pw_union_pw_aff_add_piece(__isl_take PWisl_pw_union_pw_aff *pw, |
| 97 | __isl_take isl_setisl_map *set, __isl_take ELisl_union_pw_aff *el) |
| 98 | { |
| 99 | isl_bool skip; |
| 100 | |
| 101 | skip = isl_set_plain_is_empty(set); |
| 102 | if (skip >= 0 && !skip) |
| 103 | skip = FN(EL,EL_IS_ZERO)isl_union_pw_aff_is_empty(el); |
| 104 | if (skip >= 0 && !skip) |
| 105 | return FN(PW,add_dup_piece)isl_pw_union_pw_aff_add_dup_piece(pw, set, el); |
| 106 | |
| 107 | isl_set_free(set); |
| 108 | FN(EL,free)isl_union_pw_aff_free(el); |
| 109 | if (skip < 0) |
| 110 | return FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 111 | return pw; |
| 112 | } |
| 113 | |
| 114 | /* Does the space of "set" correspond to that of the domain of "el". |
| 115 | */ |
| 116 | static isl_bool FN(PW,compatible_domain)isl_pw_union_pw_aff_compatible_domain(__isl_keep ELisl_union_pw_aff *el, |
| 117 | __isl_keep isl_setisl_map *set) |
| 118 | { |
| 119 | isl_bool ok; |
| 120 | isl_space *el_space, *set_space; |
| 121 | |
| 122 | if (!set || !el) |
| 123 | return isl_bool_error; |
| 124 | set_space = isl_set_get_space(set); |
| 125 | el_space = FN(EL,get_space)isl_union_pw_aff_get_space(el); |
| 126 | ok = isl_space_is_domain_internal(set_space, el_space); |
| 127 | isl_space_free(el_space); |
| 128 | isl_space_free(set_space); |
| 129 | return ok; |
| 130 | } |
| 131 | |
| 132 | /* Check that the space of "set" corresponds to that of the domain of "el". |
| 133 | */ |
| 134 | static isl_stat FN(PW,check_compatible_domain)isl_pw_union_pw_aff_check_compatible_domain(__isl_keep ELisl_union_pw_aff *el, |
| 135 | __isl_keep isl_setisl_map *set) |
| 136 | { |
| 137 | isl_bool ok; |
| 138 | |
| 139 | ok = FN(PW,compatible_domain)isl_pw_union_pw_aff_compatible_domain(el, set); |
| 140 | if (ok < 0) |
| 141 | return isl_stat_error; |
| 142 | if (!ok) |
| 143 | isl_die(isl_set_get_ctx(set), isl_error_invalid,do { isl_handle_error(isl_set_get_ctx(set), isl_error_invalid , "incompatible spaces", "polly/lib/External/isl/isl_pw_templ.c" , 144); return isl_stat_error; } while (0) |
| 144 | "incompatible spaces", return isl_stat_error)do { isl_handle_error(isl_set_get_ctx(set), isl_error_invalid , "incompatible spaces", "polly/lib/External/isl/isl_pw_templ.c" , 144); return isl_stat_error; } while (0); |
| 145 | |
| 146 | return isl_stat_ok; |
| 147 | } |
| 148 | |
| 149 | __isl_give PWisl_pw_union_pw_aff *FN(PW,alloc)isl_pw_union_pw_aff_alloc(OPT_TYPE_PARAM_FIRST |
| 150 | __isl_take isl_setisl_map *set, __isl_take ELisl_union_pw_aff *el) |
| 151 | { |
| 152 | PWisl_pw_union_pw_aff *pw; |
| 153 | |
| 154 | if (FN(PW,check_compatible_domain)isl_pw_union_pw_aff_check_compatible_domain(el, set) < 0) |
| 155 | goto error; |
| 156 | |
| 157 | pw = FN(PW,alloc_size)isl_pw_union_pw_aff_alloc_size(FN(EL,get_space)isl_union_pw_aff_get_space(el) OPT_TYPE_ARG(NO_LOC), 1); |
| 158 | |
| 159 | return FN(PW,add_piece)isl_pw_union_pw_aff_add_piece(pw, set, el); |
| 160 | error: |
| 161 | isl_set_free(set); |
| 162 | FN(EL,free)isl_union_pw_aff_free(el); |
| 163 | return NULL((void*)0); |
| 164 | } |
| 165 | |
| 166 | __isl_give PWisl_pw_union_pw_aff *FN(PW,dup)isl_pw_union_pw_aff_dup(__isl_keep PWisl_pw_union_pw_aff *pw) |
| 167 | { |
| 168 | int i; |
| 169 | PWisl_pw_union_pw_aff *dup; |
| 170 | |
| 171 | if (!pw) |
| 172 | return NULL((void*)0); |
| 173 | |
| 174 | dup = FN(PW,alloc_size)isl_pw_union_pw_aff_alloc_size(isl_space_copy(pw->dim) |
| 175 | OPT_TYPE_ARG(pw->), pw->n); |
| 176 | if (!dup) |
| 177 | return NULL((void*)0); |
| 178 | |
| 179 | for (i = 0; i < pw->n; ++i) |
| 180 | dup = FN(PW,add_dup_piece)isl_pw_union_pw_aff_add_dup_piece(dup, isl_set_copy(pw->p[i].set), |
| 181 | FN(EL,copy)isl_union_pw_aff_copy(pw->p[i].FIELDmaff)); |
| 182 | |
| 183 | return dup; |
| 184 | } |
| 185 | |
| 186 | __isl_give PWisl_pw_union_pw_aff *FN(PW,cow)isl_pw_union_pw_aff_cow(__isl_take PWisl_pw_union_pw_aff *pw) |
| 187 | { |
| 188 | if (!pw) |
| 189 | return NULL((void*)0); |
| 190 | |
| 191 | if (pw->ref == 1) |
| 192 | return pw; |
| 193 | pw->ref--; |
| 194 | return FN(PW,dup)isl_pw_union_pw_aff_dup(pw); |
| 195 | } |
| 196 | |
| 197 | __isl_give PWisl_pw_union_pw_aff *FN(PW,copy)isl_pw_union_pw_aff_copy(__isl_keep PWisl_pw_union_pw_aff *pw) |
| 198 | { |
| 199 | if (!pw) |
| 200 | return NULL((void*)0); |
| 201 | |
| 202 | pw->ref++; |
| 203 | return pw; |
| 204 | } |
| 205 | |
| 206 | __isl_null PWisl_pw_union_pw_aff *FN(PW,free)isl_pw_union_pw_aff_free(__isl_take PWisl_pw_union_pw_aff *pw) |
| 207 | { |
| 208 | int i; |
| 209 | |
| 210 | if (!pw) |
| 211 | return NULL((void*)0); |
| 212 | if (--pw->ref > 0) |
| 213 | return NULL((void*)0); |
| 214 | |
| 215 | for (i = 0; i < pw->n; ++i) { |
| 216 | isl_set_free(pw->p[i].set); |
| 217 | FN(EL,free)isl_union_pw_aff_free(pw->p[i].FIELDmaff); |
| 218 | } |
| 219 | isl_space_free(pw->dim); |
| 220 | free(pw); |
| 221 | |
| 222 | return NULL((void*)0); |
| 223 | } |
| 224 | |
| 225 | /* Return the space of "pw". |
| 226 | */ |
| 227 | __isl_keep isl_space *FN(PW,peek_space)isl_pw_union_pw_aff_peek_space(__isl_keep PWisl_pw_union_pw_aff *pw) |
| 228 | { |
| 229 | return pw ? pw->dim : NULL((void*)0); |
| 230 | } |
| 231 | |
| 232 | __isl_give isl_space *FN(PW,get_space)isl_pw_union_pw_aff_get_space(__isl_keep PWisl_pw_union_pw_aff *pw) |
| 233 | { |
| 234 | return isl_space_copy(FN(PW,peek_space)isl_pw_union_pw_aff_peek_space(pw)); |
| 235 | } |
| 236 | |
| 237 | /* Return the space of "pw". |
| 238 | * This may be either a copy or the space itself |
| 239 | * if there is only one reference to "pw". |
| 240 | * This allows the space to be modified inplace |
| 241 | * if both the piecewise expression and its space have only a single reference. |
| 242 | * The caller is not allowed to modify "pw" between this call and |
| 243 | * a subsequent call to isl_pw_*_restore_*. |
| 244 | * The only exception is that isl_pw_*_free can be called instead. |
| 245 | */ |
| 246 | static __isl_give isl_space *FN(PW,take_space)isl_pw_union_pw_aff_take_space(__isl_keep PWisl_pw_union_pw_aff *pw) |
| 247 | { |
| 248 | isl_space *space; |
| 249 | |
| 250 | if (!pw) |
| 251 | return NULL((void*)0); |
| 252 | if (pw->ref != 1) |
| 253 | return FN(PW,get_space)isl_pw_union_pw_aff_get_space(pw); |
| 254 | space = pw->dim; |
| 255 | pw->dim = NULL((void*)0); |
| 256 | return space; |
| 257 | } |
| 258 | |
| 259 | /* Set the space of "pw" to "space", where the space of "pw" may be missing |
| 260 | * due to a preceding call to isl_pw_*_take_space. |
| 261 | * However, in this case, "pw" only has a single reference and |
| 262 | * then the call to isl_pw_*_cow has no effect. |
| 263 | */ |
| 264 | static __isl_give PWisl_pw_union_pw_aff *FN(PW,restore_space)isl_pw_union_pw_aff_restore_space(__isl_take PWisl_pw_union_pw_aff *pw, |
| 265 | __isl_take isl_space *space) |
| 266 | { |
| 267 | if (!pw || !space) |
| 268 | goto error; |
| 269 | |
| 270 | if (pw->dim == space) { |
| 271 | isl_space_free(space); |
| 272 | return pw; |
| 273 | } |
| 274 | |
| 275 | pw = FN(PW,cow)isl_pw_union_pw_aff_cow(pw); |
| 276 | if (!pw) |
| 277 | goto error; |
| 278 | isl_space_free(pw->dim); |
| 279 | pw->dim = space; |
| 280 | |
| 281 | return pw; |
| 282 | error: |
| 283 | FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 284 | isl_space_free(space); |
| 285 | return NULL((void*)0); |
| 286 | } |
| 287 | |
| 288 | /* Check that "pos" is a valid position for a cell in "pw". |
| 289 | */ |
| 290 | static isl_stat FN(PW,check_pos)isl_pw_union_pw_aff_check_pos(__isl_keep PWisl_pw_union_pw_aff *pw, int pos) |
| 291 | { |
| 292 | if (!pw) |
| 293 | return isl_stat_error; |
| 294 | if (pos < 0 || pos >= pw->n) |
| 295 | isl_die(FN(PW,get_ctx)(pw), isl_error_internal,do { isl_handle_error(isl_pw_union_pw_aff_get_ctx(pw), isl_error_internal , "position out of bounds", "polly/lib/External/isl/isl_pw_templ.c" , 296); return isl_stat_error; } while (0) |
| 296 | "position out of bounds", return isl_stat_error)do { isl_handle_error(isl_pw_union_pw_aff_get_ctx(pw), isl_error_internal , "position out of bounds", "polly/lib/External/isl/isl_pw_templ.c" , 296); return isl_stat_error; } while (0); |
| 297 | return isl_stat_ok; |
| 298 | } |
| 299 | |
| 300 | /* Return the cell at position "pos" in "pw". |
| 301 | */ |
| 302 | static __isl_keep isl_setisl_map *FN(PW,peek_domain_at)isl_pw_union_pw_aff_peek_domain_at(__isl_keep PWisl_pw_union_pw_aff *pw, int pos) |
| 303 | { |
| 304 | if (FN(PW,check_pos)isl_pw_union_pw_aff_check_pos(pw, pos) < 0) |
| 305 | return NULL((void*)0); |
| 306 | return pw->p[pos].set; |
| 307 | } |
| 308 | |
| 309 | /* Return a copy of the cell at position "pos" in "pw". |
| 310 | */ |
| 311 | static __isl_give isl_setisl_map *FN(PW,get_domain_at)isl_pw_union_pw_aff_get_domain_at(__isl_keep PWisl_pw_union_pw_aff *pw, int pos) |
| 312 | { |
| 313 | return isl_set_copy(FN(PW,peek_domain_at)isl_pw_union_pw_aff_peek_domain_at(pw, pos)); |
| 314 | } |
| 315 | |
| 316 | /* Return the cell at position "pos" in "pw". |
| 317 | * This may be either a copy or the cell itself |
| 318 | * if there is only one reference to "pw". |
| 319 | * This allows the cell to be modified inplace |
| 320 | * if both the piecewise expression and this cell |
| 321 | * have only a single reference. |
| 322 | * The caller is not allowed to modify "pw" between this call and |
| 323 | * the subsequent call to isl_pw_*_restore_domain_at. |
| 324 | * The only exception is that isl_pw_*_free can be called instead. |
| 325 | */ |
| 326 | static __isl_give isl_setisl_map *FN(PW,take_domain_at)isl_pw_union_pw_aff_take_domain_at(__isl_keep PWisl_pw_union_pw_aff *pw, int pos) |
| 327 | { |
| 328 | isl_setisl_map *domain; |
| 329 | |
| 330 | if (!pw) |
| 331 | return NULL((void*)0); |
| 332 | if (pw->ref != 1) |
| 333 | return FN(PW,get_domain_at)isl_pw_union_pw_aff_get_domain_at(pw, pos); |
| 334 | if (FN(PW,check_pos)isl_pw_union_pw_aff_check_pos(pw, pos) < 0) |
| 335 | return NULL((void*)0); |
| 336 | domain = pw->p[pos].set; |
| 337 | pw->p[pos].set = NULL((void*)0); |
| 338 | return domain; |
| 339 | } |
| 340 | |
| 341 | /* Set the cell at position "pos" in "pw" to "el", |
| 342 | * where this cell may be missing |
| 343 | * due to a preceding call to isl_pw_*_take_domain_at. |
| 344 | * However, in this case, "pw" only has a single reference and |
| 345 | * then the call to isl_pw_*_cow has no effect. |
| 346 | */ |
| 347 | static __isl_give PWisl_pw_union_pw_aff *FN(PW,restore_domain_at)isl_pw_union_pw_aff_restore_domain_at(__isl_take PWisl_pw_union_pw_aff *pw, int pos, |
| 348 | __isl_take isl_setisl_map *domain) |
| 349 | { |
| 350 | if (FN(PW,check_pos)isl_pw_union_pw_aff_check_pos(pw, pos) < 0 || !domain) |
| 351 | goto error; |
| 352 | |
| 353 | if (pw->p[pos].set == domain) { |
| 354 | isl_set_free(domain); |
| 355 | return pw; |
| 356 | } |
| 357 | |
| 358 | pw = FN(PW,cow)isl_pw_union_pw_aff_cow(pw); |
| 359 | if (!pw) |
| 360 | goto error; |
| 361 | isl_set_free(pw->p[pos].set); |
| 362 | pw->p[pos].set = domain; |
| 363 | |
| 364 | return pw; |
| 365 | error: |
| 366 | FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 367 | isl_set_free(domain); |
| 368 | return NULL((void*)0); |
| 369 | } |
| 370 | |
| 371 | /* Return the base expression associated to |
| 372 | * the cell at position "pos" in "pw". |
| 373 | */ |
| 374 | __isl_keep ELisl_union_pw_aff *FN(PW,peek_base_at)isl_pw_union_pw_aff_peek_base_at(__isl_keep PWisl_pw_union_pw_aff *pw, int pos) |
| 375 | { |
| 376 | if (FN(PW,check_pos)isl_pw_union_pw_aff_check_pos(pw, pos) < 0) |
| 377 | return NULL((void*)0); |
| 378 | return pw->p[pos].FIELDmaff; |
| 379 | } |
| 380 | |
| 381 | /* Return a copy of the base expression associated to |
| 382 | * the cell at position "pos" in "pw". |
| 383 | */ |
| 384 | static __isl_give ELisl_union_pw_aff *FN(PW,get_base_at)isl_pw_union_pw_aff_get_base_at(__isl_keep PWisl_pw_union_pw_aff *pw, int pos) |
| 385 | { |
| 386 | return FN(EL,copy)isl_union_pw_aff_copy(FN(PW,peek_base_at)isl_pw_union_pw_aff_peek_base_at(pw, pos)); |
| 387 | } |
| 388 | |
| 389 | /* Return the base expression associated to |
| 390 | * the cell at position "pos" in "pw". |
| 391 | * This may be either a copy or the base expression itself |
| 392 | * if there is only one reference to "pw". |
| 393 | * This allows the base expression to be modified inplace |
| 394 | * if both the piecewise expression and this base expression |
| 395 | * have only a single reference. |
| 396 | * The caller is not allowed to modify "pw" between this call and |
| 397 | * a subsequent call to isl_pw_*_restore_*. |
| 398 | * The only exception is that isl_pw_*_free can be called instead. |
| 399 | */ |
| 400 | static __isl_give ELisl_union_pw_aff *FN(PW,take_base_at)isl_pw_union_pw_aff_take_base_at(__isl_keep PWisl_pw_union_pw_aff *pw, int pos) |
| 401 | { |
| 402 | ELisl_union_pw_aff *el; |
| 403 | |
| 404 | if (!pw) |
| 405 | return NULL((void*)0); |
| 406 | if (pw->ref != 1) |
| 407 | return FN(PW,get_base_at)isl_pw_union_pw_aff_get_base_at(pw, pos); |
| 408 | if (FN(PW,check_pos)isl_pw_union_pw_aff_check_pos(pw, pos) < 0) |
| 409 | return NULL((void*)0); |
| 410 | el = pw->p[pos].FIELDmaff; |
| 411 | pw->p[pos].FIELDmaff = NULL((void*)0); |
| 412 | return el; |
| 413 | } |
| 414 | |
| 415 | /* Set the base expression associated to |
| 416 | * the cell at position "pos" in "pw" to "el", |
| 417 | * where this base expression may be missing |
| 418 | * due to a preceding call to isl_pw_*_take_base_at. |
| 419 | * However, in this case, "pw" only has a single reference and |
| 420 | * then the call to isl_pw_*_cow has no effect. |
| 421 | * If "inplace" is set, then replacing the base expression by "el" |
| 422 | * is known not to change the meaning of "pw". It can therefore be replaced |
| 423 | * in all references to "pw". |
| 424 | */ |
| 425 | static __isl_give PWisl_pw_union_pw_aff *FN(PW,restore_base_at_)isl_pw_union_pw_aff_restore_base_at_(__isl_take PWisl_pw_union_pw_aff *pw, int pos, |
| 426 | __isl_take ELisl_union_pw_aff *el, int inplace) |
| 427 | { |
| 428 | if (FN(PW,check_pos)isl_pw_union_pw_aff_check_pos(pw, pos) < 0 || !el) |
| 429 | goto error; |
| 430 | |
| 431 | if (pw->p[pos].FIELDmaff == el) { |
| 432 | FN(EL,free)isl_union_pw_aff_free(el); |
| 433 | return pw; |
| 434 | } |
| 435 | |
| 436 | if (!inplace) |
| 437 | pw = FN(PW,cow)isl_pw_union_pw_aff_cow(pw); |
| 438 | if (!pw) |
| 439 | goto error; |
| 440 | FN(EL,free)isl_union_pw_aff_free(pw->p[pos].FIELDmaff); |
| 441 | pw->p[pos].FIELDmaff = el; |
| 442 | |
| 443 | return pw; |
| 444 | error: |
| 445 | FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 446 | FN(EL,free)isl_union_pw_aff_free(el); |
| 447 | return NULL((void*)0); |
| 448 | } |
| 449 | |
| 450 | /* Set the base expression associated to |
| 451 | * the cell at position "pos" in "pw" to "el", |
| 452 | * where this base expression may be missing |
| 453 | * due to a preceding call to isl_pw_*_take_base_at. |
| 454 | */ |
| 455 | static __isl_give PWisl_pw_union_pw_aff *FN(PW,restore_base_at)isl_pw_union_pw_aff_restore_base_at(__isl_take PWisl_pw_union_pw_aff *pw, int pos, |
| 456 | __isl_take ELisl_union_pw_aff *el) |
| 457 | { |
| 458 | return FN(PW,restore_base_at_)isl_pw_union_pw_aff_restore_base_at_(pw, pos, el, 0); |
| 459 | } |
| 460 | |
| 461 | /* Set the base expression associated to |
| 462 | * the cell at position "pos" in "pw" to "el", |
| 463 | * where this base expression may be missing |
| 464 | * due to a preceding call to isl_pw_*_take_base_at. |
| 465 | * Furthermore, replacing the base expression by "el" |
| 466 | * is known not to change the meaning of "pw". |
| 467 | */ |
| 468 | static __isl_give PWisl_pw_union_pw_aff *FN(PW,restore_base_at_inplace)isl_pw_union_pw_aff_restore_base_at_inplace(__isl_take PWisl_pw_union_pw_aff *pw, int pos, |
| 469 | __isl_take ELisl_union_pw_aff *el) |
| 470 | { |
| 471 | return FN(PW,restore_base_at_)isl_pw_union_pw_aff_restore_base_at_(pw, pos, el, 1); |
| 472 | } |
| 473 | |
| 474 | /* Create a piecewise expression with the given base expression on a universe |
| 475 | * domain. |
| 476 | */ |
| 477 | static __isl_give PWisl_pw_union_pw_aff *FN(FN(FN(PW,from),BASE),type_base)isl_pw_union_pw_aff_from_union_pw_aff_type_base(__isl_take ELisl_union_pw_aff *el |
| 478 | OPT_TYPE_PARAM) |
| 479 | { |
| 480 | isl_setisl_map *dom = isl_set_universe(FN(EL,get_domain_space)isl_union_pw_aff_get_domain_space(el)); |
| 481 | return FN(PW,alloc)isl_pw_union_pw_aff_alloc(OPT_TYPE_ARG_FIRST(NO_LOC) dom, el); |
| 482 | } |
| 483 | |
| 484 | /* Create a piecewise expression with the given base expression on a universe |
| 485 | * domain. |
| 486 | * |
| 487 | * If the default value of this piecewise type is zero and |
| 488 | * if "el" is effectively zero, then create an empty piecewise expression |
| 489 | * instead. |
| 490 | */ |
| 491 | static __isl_give PWisl_pw_union_pw_aff *FN(FN(FN(PW,from),BASE),type)isl_pw_union_pw_aff_from_union_pw_aff_type(__isl_take ELisl_union_pw_aff *el |
| 492 | OPT_TYPE_PARAM) |
| 493 | { |
| 494 | isl_bool is_zero; |
| 495 | isl_space *space; |
| 496 | |
| 497 | if (!DEFAULT_IS_ZERO0) |
| 498 | return FN(FN(FN(PW,from),BASE),type_base)isl_pw_union_pw_aff_from_union_pw_aff_type_base(el |
| 499 | OPT_TYPE_ARG(NO_LOC)); |
| 500 | is_zero = FN(EL,EL_IS_ZERO)isl_union_pw_aff_is_empty(el); |
| 501 | if (is_zero < 0) |
| 502 | goto error; |
| 503 | if (!is_zero) |
| 504 | return FN(FN(FN(PW,from),BASE),type_base)isl_pw_union_pw_aff_from_union_pw_aff_type_base(el |
| 505 | OPT_TYPE_ARG(NO_LOC)); |
| 506 | space = FN(EL,get_space)isl_union_pw_aff_get_space(el); |
| 507 | FN(EL,free)isl_union_pw_aff_free(el); |
| 508 | return FN(PW,ZERO)isl_pw_union_pw_aff_empty(space OPT_TYPE_ARG(NO_LOC)); |
| 509 | error: |
| 510 | FN(EL,free)isl_union_pw_aff_free(el); |
| 511 | return NULL((void*)0); |
| 512 | } |
| 513 | |
| 514 | #ifdef HAS_TYPE |
| 515 | /* Create a piecewise expression with the given base expression on a universe |
| 516 | * domain. |
| 517 | * |
| 518 | * Pass along the type as an extra argument for improved uniformity |
| 519 | * with piecewise types that do not have a fold type. |
| 520 | */ |
| 521 | __isl_give PWisl_pw_union_pw_aff *FN(FN(PW,from),BASE)isl_pw_union_pw_aff_from_union_pw_aff(__isl_take ELisl_union_pw_aff *el) |
| 522 | { |
| 523 | enum isl_fold type = FN(EL,get_type)isl_union_pw_aff_get_type(el); |
| 524 | return FN(FN(FN(PW,from),BASE),type)isl_pw_union_pw_aff_from_union_pw_aff_type(el, type); |
| 525 | } |
| 526 | #else |
| 527 | __isl_give PWisl_pw_union_pw_aff *FN(FN(PW,from),BASE)isl_pw_union_pw_aff_from_union_pw_aff(__isl_take ELisl_union_pw_aff *el) |
| 528 | { |
| 529 | return FN(FN(FN(PW,from),BASE),type)isl_pw_union_pw_aff_from_union_pw_aff_type(el); |
| 530 | } |
| 531 | #endif |
| 532 | |
| 533 | const char *FN(PW,get_dim_name)isl_pw_union_pw_aff_get_dim_name(__isl_keep PWisl_pw_union_pw_aff *pw, enum isl_dim_type type, |
| 534 | unsigned pos) |
| 535 | { |
| 536 | return pw ? isl_space_get_dim_name(pw->dim, type, pos) : NULL((void*)0); |
| 537 | } |
| 538 | |
| 539 | isl_bool FN(PW,has_dim_id)isl_pw_union_pw_aff_has_dim_id(__isl_keep PWisl_pw_union_pw_aff *pw, enum isl_dim_type type, |
| 540 | unsigned pos) |
| 541 | { |
| 542 | return pw ? isl_space_has_dim_id(pw->dim, type, pos) : isl_bool_error; |
| 543 | } |
| 544 | |
| 545 | __isl_give isl_id *FN(PW,get_dim_id)isl_pw_union_pw_aff_get_dim_id(__isl_keep PWisl_pw_union_pw_aff *pw, enum isl_dim_type type, |
| 546 | unsigned pos) |
| 547 | { |
| 548 | return pw ? isl_space_get_dim_id(pw->dim, type, pos) : NULL((void*)0); |
| 549 | } |
| 550 | |
| 551 | isl_bool FN(PW,has_tuple_name)isl_pw_union_pw_aff_has_tuple_name(__isl_keep PWisl_pw_union_pw_aff *pw, enum isl_dim_type type) |
| 552 | { |
| 553 | return pw ? isl_space_has_tuple_name(pw->dim, type) : isl_bool_error; |
| 554 | } |
| 555 | |
| 556 | const char *FN(PW,get_tuple_name)isl_pw_union_pw_aff_get_tuple_name(__isl_keep PWisl_pw_union_pw_aff *pw, enum isl_dim_type type) |
| 557 | { |
| 558 | return pw ? isl_space_get_tuple_name(pw->dim, type) : NULL((void*)0); |
| 559 | } |
| 560 | |
| 561 | isl_bool FN(PW,has_tuple_id)isl_pw_union_pw_aff_has_tuple_id(__isl_keep PWisl_pw_union_pw_aff *pw, enum isl_dim_type type) |
| 562 | { |
| 563 | return pw ? isl_space_has_tuple_id(pw->dim, type) : isl_bool_error; |
| 564 | } |
| 565 | |
| 566 | __isl_give isl_id *FN(PW,get_tuple_id)isl_pw_union_pw_aff_get_tuple_id(__isl_keep PWisl_pw_union_pw_aff *pw, enum isl_dim_type type) |
| 567 | { |
| 568 | return pw ? isl_space_get_tuple_id(pw->dim, type) : NULL((void*)0); |
| 569 | } |
| 570 | |
| 571 | isl_bool FN(PW,IS_ZERO)isl_pw_union_pw_aff_is_empty(__isl_keep PWisl_pw_union_pw_aff *pw) |
| 572 | { |
| 573 | if (!pw) |
| 574 | return isl_bool_error; |
| 575 | |
| 576 | return isl_bool_ok(pw->n == 0); |
| 577 | } |
| 578 | |
| 579 | static __isl_give PWisl_pw_union_pw_aff *FN(PW,realign_domain)isl_pw_union_pw_aff_realign_domain(__isl_take PWisl_pw_union_pw_aff *pw, |
| 580 | __isl_take isl_reordering *exp) |
| 581 | { |
| 582 | int i; |
| 583 | isl_size n; |
| 584 | |
| 585 | n = FN(PW,n_piece)isl_pw_union_pw_aff_n_piece(pw); |
| 586 | if (n < 0 || !exp) |
| 587 | goto error; |
| 588 | |
| 589 | for (i = 0; i < n; ++i) { |
| 590 | isl_setisl_map *domain; |
| 591 | ELisl_union_pw_aff *el; |
| 592 | |
| 593 | domain = FN(PW,take_domain_at)isl_pw_union_pw_aff_take_domain_at(pw, i); |
| 594 | domain = isl_set_realign(domain, isl_reordering_copy(exp)); |
| 595 | pw = FN(PW,restore_domain_at)isl_pw_union_pw_aff_restore_domain_at(pw, i, domain); |
| 596 | |
| 597 | el = FN(PW,take_base_at)isl_pw_union_pw_aff_take_base_at(pw, i); |
| 598 | el = FN(EL,realign_domain)isl_union_pw_aff_realign_domain(el, isl_reordering_copy(exp)); |
| 599 | pw = FN(PW,restore_base_at)isl_pw_union_pw_aff_restore_base_at(pw, i, el); |
| 600 | } |
| 601 | |
| 602 | pw = FN(PW,reset_domain_space)isl_pw_union_pw_aff_reset_domain_space(pw, isl_reordering_get_space(exp)); |
| 603 | |
| 604 | isl_reordering_free(exp); |
| 605 | return pw; |
| 606 | error: |
| 607 | isl_reordering_free(exp); |
| 608 | FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 609 | return NULL((void*)0); |
| 610 | } |
| 611 | |
| 612 | #undef TYPEisl_multi_union_pw_aff |
| 613 | #define TYPEisl_multi_union_pw_aff PWisl_pw_union_pw_aff |
| 614 | |
| 615 | #include "isl_check_named_params_templ.c" |
| 616 | |
| 617 | /* Align the parameters of "pw" to those of "model". |
| 618 | */ |
| 619 | __isl_give PWisl_pw_union_pw_aff *FN(PW,align_params)isl_pw_union_pw_aff_align_params(__isl_take PWisl_pw_union_pw_aff *pw, __isl_take isl_space *model) |
| 620 | { |
| 621 | isl_ctx *ctx; |
| 622 | isl_bool equal_params; |
| 623 | |
| 624 | if (!pw || !model) |
| 625 | goto error; |
| 626 | |
| 627 | ctx = isl_space_get_ctx(model); |
| 628 | if (!isl_space_has_named_params(model)) |
| 629 | isl_die(ctx, isl_error_invalid,do { isl_handle_error(ctx, isl_error_invalid, "model has unnamed parameters" , "polly/lib/External/isl/isl_pw_templ.c", 630); goto error; } while (0) |
| 630 | "model has unnamed parameters", goto error)do { isl_handle_error(ctx, isl_error_invalid, "model has unnamed parameters" , "polly/lib/External/isl/isl_pw_templ.c", 630); goto error; } while (0); |
| 631 | if (FN(PW,check_named_params)isl_pw_union_pw_aff_check_named_params(pw) < 0) |
| 632 | goto error; |
| 633 | equal_params = isl_space_has_equal_params(pw->dim, model); |
| 634 | if (equal_params < 0) |
| 635 | goto error; |
| 636 | if (!equal_params) { |
| 637 | isl_space *space; |
| 638 | isl_reordering *exp; |
| 639 | |
| 640 | space = FN(PW,get_domain_space)isl_pw_union_pw_aff_get_domain_space(pw); |
| 641 | exp = isl_parameter_alignment_reordering(space, model); |
| 642 | isl_space_free(space); |
| 643 | pw = FN(PW,realign_domain)isl_pw_union_pw_aff_realign_domain(pw, exp); |
| 644 | } |
| 645 | |
| 646 | isl_space_free(model); |
| 647 | return pw; |
| 648 | error: |
| 649 | isl_space_free(model); |
| 650 | FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 651 | return NULL((void*)0); |
| 652 | } |
| 653 | |
| 654 | #undef TYPEisl_multi_union_pw_aff |
| 655 | #define TYPEisl_multi_union_pw_aff PWisl_pw_union_pw_aff |
| 656 | |
| 657 | static |
| 658 | #include "isl_align_params_bin_templ.c" |
| 659 | |
| 660 | #undef SUFFIXbin |
| 661 | #define SUFFIXbin set |
| 662 | #undef ARG1isl_multi_union_pw_aff |
| 663 | #define ARG1isl_multi_union_pw_aff PWisl_pw_union_pw_aff |
| 664 | #undef ARG2isl_multi_union_pw_aff |
| 665 | #define ARG2isl_multi_union_pw_aff isl_setisl_map |
| 666 | |
| 667 | static |
| 668 | #include "isl_align_params_templ.c" |
| 669 | |
| 670 | #undef TYPEisl_multi_union_pw_aff |
| 671 | #define TYPEisl_multi_union_pw_aff PWisl_pw_union_pw_aff |
| 672 | |
| 673 | #include "isl_type_has_equal_space_bin_templ.c" |
| 674 | #include "isl_type_check_equal_space_templ.c" |
| 675 | |
| 676 | /* Private version of "union_add". For isl_pw_qpolynomial and |
| 677 | * isl_pw_qpolynomial_fold, we prefer to simply call it "add". |
| 678 | */ |
| 679 | static __isl_give PWisl_pw_union_pw_aff *FN(PW,union_add_)isl_pw_union_pw_aff_union_add_(__isl_take PWisl_pw_union_pw_aff *pw1, __isl_take PWisl_pw_union_pw_aff *pw2) |
| 680 | { |
| 681 | int i, j, n; |
| 682 | struct PWisl_pw_union_pw_aff *res; |
| 683 | isl_ctx *ctx; |
| 684 | isl_setisl_map *set; |
| 685 | |
| 686 | if (FN(PW,align_params_bin)isl_pw_union_pw_aff_align_params_bin(&pw1, &pw2) < 0) |
| 687 | goto error; |
| 688 | |
| 689 | ctx = isl_space_get_ctx(pw1->dim); |
Value stored to 'ctx' is never read | |
| 690 | if (!OPT_EQUAL_TYPES(pw1->, pw2->)1) |
| 691 | isl_die(ctx, isl_error_invalid,do { isl_handle_error(ctx, isl_error_invalid, "fold types don't match" , "polly/lib/External/isl/isl_pw_templ.c", 692); goto error; } while (0) |
| 692 | "fold types don't match", goto error)do { isl_handle_error(ctx, isl_error_invalid, "fold types don't match" , "polly/lib/External/isl/isl_pw_templ.c", 692); goto error; } while (0); |
| 693 | if (FN(PW,check_equal_space)isl_pw_union_pw_aff_check_equal_space(pw1, pw2) < 0) |
| 694 | goto error; |
| 695 | |
| 696 | if (FN(PW,IS_ZERO)isl_pw_union_pw_aff_is_empty(pw1)) { |
| 697 | FN(PW,free)isl_pw_union_pw_aff_free(pw1); |
| 698 | return pw2; |
| 699 | } |
| 700 | |
| 701 | if (FN(PW,IS_ZERO)isl_pw_union_pw_aff_is_empty(pw2)) { |
| 702 | FN(PW,free)isl_pw_union_pw_aff_free(pw2); |
| 703 | return pw1; |
| 704 | } |
| 705 | |
| 706 | n = (pw1->n + 1) * (pw2->n + 1); |
| 707 | res = FN(PW,alloc_size)isl_pw_union_pw_aff_alloc_size(isl_space_copy(pw1->dim) |
| 708 | OPT_TYPE_ARG(pw1->), n); |
| 709 | |
| 710 | for (i = 0; i < pw1->n; ++i) { |
| 711 | set = isl_set_copy(pw1->p[i].set); |
| 712 | for (j = 0; j < pw2->n; ++j) { |
| 713 | struct isl_setisl_map *common; |
| 714 | ELisl_union_pw_aff *sum; |
| 715 | common = isl_set_intersect(isl_set_copy(pw1->p[i].set), |
| 716 | isl_set_copy(pw2->p[j].set)); |
| 717 | if (isl_set_plain_is_empty(common)) { |
| 718 | isl_set_free(common); |
| 719 | continue; |
| 720 | } |
| 721 | set = isl_set_subtract(set, |
| 722 | isl_set_copy(pw2->p[j].set)); |
| 723 | |
| 724 | sum = FN(EL,add_on_domain)isl_union_pw_aff_add_on_domain(common, |
| 725 | FN(EL,copy)isl_union_pw_aff_copy(pw1->p[i].FIELDmaff), |
| 726 | FN(EL,copy)isl_union_pw_aff_copy(pw2->p[j].FIELDmaff)); |
| 727 | |
| 728 | res = FN(PW,add_piece)isl_pw_union_pw_aff_add_piece(res, common, sum); |
| 729 | } |
| 730 | res = FN(PW,add_piece)isl_pw_union_pw_aff_add_piece(res, set, FN(EL,copy)isl_union_pw_aff_copy(pw1->p[i].FIELDmaff)); |
| 731 | } |
| 732 | |
| 733 | for (j = 0; j < pw2->n; ++j) { |
| 734 | set = isl_set_copy(pw2->p[j].set); |
| 735 | for (i = 0; i < pw1->n; ++i) |
| 736 | set = isl_set_subtract(set, |
| 737 | isl_set_copy(pw1->p[i].set)); |
| 738 | res = FN(PW,add_piece)isl_pw_union_pw_aff_add_piece(res, set, FN(EL,copy)isl_union_pw_aff_copy(pw2->p[j].FIELDmaff)); |
| 739 | } |
| 740 | |
| 741 | FN(PW,free)isl_pw_union_pw_aff_free(pw1); |
| 742 | FN(PW,free)isl_pw_union_pw_aff_free(pw2); |
| 743 | |
| 744 | return res; |
| 745 | error: |
| 746 | FN(PW,free)isl_pw_union_pw_aff_free(pw1); |
| 747 | FN(PW,free)isl_pw_union_pw_aff_free(pw2); |
| 748 | return NULL((void*)0); |
| 749 | } |
| 750 | |
| 751 | #if !DEFAULT_IS_ZERO0 |
| 752 | |
| 753 | /* Compute the sum of "pw1" and "pw2 on the union of their domains, |
| 754 | * with the actual sum on the shared domain and |
| 755 | * the defined expression on the symmetric difference of the domains. |
| 756 | * |
| 757 | * This function is only defined for object types that do not have |
| 758 | * a default zero value. For other object types, this function |
| 759 | * is simply called "add". |
| 760 | */ |
| 761 | __isl_give PWisl_pw_union_pw_aff *FN(PW,union_add)isl_pw_union_pw_aff_union_add(__isl_take PWisl_pw_union_pw_aff *pw1, __isl_take PWisl_pw_union_pw_aff *pw2) |
| 762 | { |
| 763 | return FN(PW,union_add_)isl_pw_union_pw_aff_union_add_(pw1, pw2); |
| 764 | } |
| 765 | |
| 766 | #endif |
| 767 | |
| 768 | /* This function is currently only used from isl_aff.c |
| 769 | */ |
| 770 | static __isl_give PWisl_pw_union_pw_aff *FN(PW,on_shared_domain_in)isl_pw_union_pw_aff_on_shared_domain_in(__isl_take PWisl_pw_union_pw_aff *pw1, |
| 771 | __isl_take PWisl_pw_union_pw_aff *pw2, __isl_take isl_space *space, |
| 772 | __isl_give ELisl_union_pw_aff *(*fn)(__isl_take ELisl_union_pw_aff *el1, __isl_take ELisl_union_pw_aff *el2)) |
| 773 | __attribute__ ((unused)); |
| 774 | |
| 775 | /* Apply "fn" to pairs of elements from pw1 and pw2 on shared domains. |
| 776 | * The result of "fn" (and therefore also of this function) lives in "space". |
| 777 | */ |
| 778 | static __isl_give PWisl_pw_union_pw_aff *FN(PW,on_shared_domain_in)isl_pw_union_pw_aff_on_shared_domain_in(__isl_take PWisl_pw_union_pw_aff *pw1, |
| 779 | __isl_take PWisl_pw_union_pw_aff *pw2, __isl_take isl_space *space, |
| 780 | __isl_give ELisl_union_pw_aff *(*fn)(__isl_take ELisl_union_pw_aff *el1, __isl_take ELisl_union_pw_aff *el2)) |
| 781 | { |
| 782 | int i, j, n; |
| 783 | PWisl_pw_union_pw_aff *res = NULL((void*)0); |
| 784 | |
| 785 | if (!pw1 || !pw2) |
| 786 | goto error; |
| 787 | |
| 788 | n = pw1->n * pw2->n; |
| 789 | res = FN(PW,alloc_size)isl_pw_union_pw_aff_alloc_size(isl_space_copy(space) OPT_TYPE_ARG(pw1->), n); |
| 790 | |
| 791 | for (i = 0; i < pw1->n; ++i) { |
| 792 | for (j = 0; j < pw2->n; ++j) { |
| 793 | isl_setisl_map *common; |
| 794 | ELisl_union_pw_aff *res_ij; |
| 795 | int empty; |
| 796 | |
| 797 | common = isl_set_intersect( |
| 798 | isl_set_copy(pw1->p[i].set), |
| 799 | isl_set_copy(pw2->p[j].set)); |
| 800 | empty = isl_set_plain_is_empty(common); |
| 801 | if (empty < 0 || empty) { |
| 802 | isl_set_free(common); |
| 803 | if (empty < 0) |
| 804 | goto error; |
| 805 | continue; |
| 806 | } |
| 807 | |
| 808 | res_ij = fn(FN(EL,copy)isl_union_pw_aff_copy(pw1->p[i].FIELDmaff), |
| 809 | FN(EL,copy)isl_union_pw_aff_copy(pw2->p[j].FIELDmaff)); |
| 810 | res_ij = FN(EL,gist)isl_union_pw_aff_gist(res_ij, isl_set_copy(common)); |
| 811 | |
| 812 | res = FN(PW,add_piece)isl_pw_union_pw_aff_add_piece(res, common, res_ij); |
| 813 | } |
| 814 | } |
| 815 | |
| 816 | isl_space_free(space); |
| 817 | FN(PW,free)isl_pw_union_pw_aff_free(pw1); |
| 818 | FN(PW,free)isl_pw_union_pw_aff_free(pw2); |
| 819 | return res; |
| 820 | error: |
| 821 | isl_space_free(space); |
| 822 | FN(PW,free)isl_pw_union_pw_aff_free(pw1); |
| 823 | FN(PW,free)isl_pw_union_pw_aff_free(pw2); |
| 824 | FN(PW,free)isl_pw_union_pw_aff_free(res); |
| 825 | return NULL((void*)0); |
| 826 | } |
| 827 | |
| 828 | /* This function is currently only used from isl_aff.c |
| 829 | */ |
| 830 | static __isl_give PWisl_pw_union_pw_aff *FN(PW,on_shared_domain)isl_pw_union_pw_aff_on_shared_domain(__isl_take PWisl_pw_union_pw_aff *pw1, |
| 831 | __isl_take PWisl_pw_union_pw_aff *pw2, |
| 832 | __isl_give ELisl_union_pw_aff *(*fn)(__isl_take ELisl_union_pw_aff *el1, __isl_take ELisl_union_pw_aff *el2)) |
| 833 | __attribute__ ((unused)); |
| 834 | |
| 835 | /* Apply "fn" to pairs of elements from pw1 and pw2 on shared domains. |
| 836 | * The result of "fn" is assumed to live in the same space as "pw1" and "pw2". |
| 837 | */ |
| 838 | static __isl_give PWisl_pw_union_pw_aff *FN(PW,on_shared_domain)isl_pw_union_pw_aff_on_shared_domain(__isl_take PWisl_pw_union_pw_aff *pw1, |
| 839 | __isl_take PWisl_pw_union_pw_aff *pw2, |
| 840 | __isl_give ELisl_union_pw_aff *(*fn)(__isl_take ELisl_union_pw_aff *el1, __isl_take ELisl_union_pw_aff *el2)) |
| 841 | { |
| 842 | isl_space *space; |
| 843 | |
| 844 | if (FN(PW,check_equal_space)isl_pw_union_pw_aff_check_equal_space(pw1, pw2) < 0) |
| 845 | goto error; |
| 846 | |
| 847 | space = isl_space_copy(pw1->dim); |
| 848 | return FN(PW,on_shared_domain_in)isl_pw_union_pw_aff_on_shared_domain_in(pw1, pw2, space, fn); |
| 849 | error: |
| 850 | FN(PW,free)isl_pw_union_pw_aff_free(pw1); |
| 851 | FN(PW,free)isl_pw_union_pw_aff_free(pw2); |
| 852 | return NULL((void*)0); |
| 853 | } |
| 854 | |
| 855 | /* Return the parameter domain of "pw". |
| 856 | */ |
| 857 | __isl_give isl_setisl_map *FN(PW,params)isl_pw_union_pw_aff_params(__isl_take PWisl_pw_union_pw_aff *pw) |
| 858 | { |
| 859 | return isl_set_params(FN(PW,domain)isl_pw_union_pw_aff_domain(pw)); |
| 860 | } |
| 861 | |
| 862 | __isl_give isl_setisl_map *FN(PW,domain)isl_pw_union_pw_aff_domain(__isl_take PWisl_pw_union_pw_aff *pw) |
| 863 | { |
| 864 | int i; |
| 865 | isl_setisl_map *dom; |
| 866 | |
| 867 | if (!pw) |
| 868 | return NULL((void*)0); |
| 869 | |
| 870 | dom = isl_set_empty(FN(PW,get_domain_space)isl_pw_union_pw_aff_get_domain_space(pw)); |
| 871 | for (i = 0; i < pw->n; ++i) |
| 872 | dom = isl_set_union_disjoint(dom, isl_set_copy(pw->p[i].set)); |
| 873 | |
| 874 | FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 875 | |
| 876 | return dom; |
| 877 | } |
| 878 | |
| 879 | /* Exploit the equalities in the domain of piece "i" of "pw" |
| 880 | * to simplify the associated function. |
| 881 | * If the domain of piece "i" is empty, then remove it entirely, |
| 882 | * replacing it with the final piece. |
| 883 | */ |
| 884 | static __isl_give PWisl_pw_union_pw_aff *FN(PW,exploit_equalities_and_remove_if_empty)isl_pw_union_pw_aff_exploit_equalities_and_remove_if_empty( |
| 885 | __isl_take PWisl_pw_union_pw_aff *pw, int i) |
| 886 | { |
| 887 | ELisl_union_pw_aff *el; |
| 888 | isl_setisl_map *domain; |
| 889 | isl_basic_setisl_basic_map *aff; |
| 890 | int empty; |
| 891 | |
| 892 | domain = FN(PW,peek_domain_at)isl_pw_union_pw_aff_peek_domain_at(pw, i); |
| 893 | empty = isl_set_plain_is_empty(domain); |
| 894 | if (empty < 0) |
| 895 | return FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 896 | if (empty) { |
| 897 | isl_set_free(pw->p[i].set); |
| 898 | FN(EL,free)isl_union_pw_aff_free(pw->p[i].FIELDmaff); |
| 899 | if (i != pw->n - 1) |
| 900 | pw->p[i] = pw->p[pw->n - 1]; |
| 901 | pw->n--; |
| 902 | |
| 903 | return pw; |
| 904 | } |
| 905 | |
| 906 | aff = isl_set_affine_hull(FN(PW,get_domain_at)isl_pw_union_pw_aff_get_domain_at(pw, i)); |
| 907 | el = FN(PW,take_base_at)isl_pw_union_pw_aff_take_base_at(pw, i); |
| 908 | el = FN(EL,substitute_equalities)isl_union_pw_aff_substitute_equalities(el, aff); |
| 909 | pw = FN(PW,restore_base_at_inplace)isl_pw_union_pw_aff_restore_base_at_inplace(pw, i, el); |
| 910 | |
| 911 | return pw; |
| 912 | } |
| 913 | |
| 914 | /* Restrict the domain of "pw" by combining each cell |
| 915 | * with "set" through a call to "fn", where "fn" may be |
| 916 | * isl_set_intersect, isl_set_intersect_params, isl_set_intersect_factor_domain, |
| 917 | * isl_set_intersect_factor_range or isl_set_subtract. |
| 918 | */ |
| 919 | static __isl_give PWisl_pw_union_pw_aff *FN(PW,restrict_domain)isl_pw_union_pw_aff_restrict_domain(__isl_take PWisl_pw_union_pw_aff *pw, |
| 920 | __isl_take isl_setisl_map *set, |
| 921 | __isl_give isl_setisl_map *(*fn)(__isl_take isl_setisl_map *set1, |
| 922 | __isl_take isl_setisl_map *set2)) |
| 923 | { |
| 924 | int i; |
| 925 | isl_size n; |
| 926 | |
| 927 | FN(PW,align_params_set)isl_pw_union_pw_aff_align_params_set(&pw, &set); |
| 928 | n = FN(PW,n_piece)isl_pw_union_pw_aff_n_piece(pw); |
| 929 | if (n < 0 || !set) |
| 930 | goto error; |
| 931 | |
| 932 | for (i = n - 1; i >= 0; --i) { |
| 933 | isl_setisl_map *domain; |
| 934 | |
| 935 | domain = FN(PW,take_domain_at)isl_pw_union_pw_aff_take_domain_at(pw, i); |
| 936 | domain = fn(domain, isl_set_copy(set)); |
| 937 | pw = FN(PW,restore_domain_at)isl_pw_union_pw_aff_restore_domain_at(pw, i, domain); |
| 938 | pw = FN(PW,exploit_equalities_and_remove_if_empty)isl_pw_union_pw_aff_exploit_equalities_and_remove_if_empty(pw, i); |
| 939 | } |
| 940 | |
| 941 | isl_set_free(set); |
| 942 | return pw; |
| 943 | error: |
| 944 | isl_set_free(set); |
| 945 | FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 946 | return NULL((void*)0); |
| 947 | } |
| 948 | |
| 949 | __isl_give PWisl_pw_union_pw_aff *FN(PW,intersect_domain)isl_pw_union_pw_aff_intersect_domain(__isl_take PWisl_pw_union_pw_aff *pw, |
| 950 | __isl_take isl_setisl_map *context) |
| 951 | { |
| 952 | return FN(PW,restrict_domain)isl_pw_union_pw_aff_restrict_domain(pw, context, &isl_set_intersect); |
| 953 | } |
| 954 | |
| 955 | /* Intersect the domain of "pw" with the parameter domain "context". |
| 956 | */ |
| 957 | __isl_give PWisl_pw_union_pw_aff *FN(PW,intersect_params)isl_pw_union_pw_aff_intersect_params(__isl_take PWisl_pw_union_pw_aff *pw, |
| 958 | __isl_take isl_setisl_map *context) |
| 959 | { |
| 960 | return FN(PW,restrict_domain)isl_pw_union_pw_aff_restrict_domain(pw, context, &isl_set_intersect_params); |
| 961 | } |
| 962 | |
| 963 | /* Given a piecewise expression "pw" with domain in a space [A -> B] and |
| 964 | * a set in the space A, intersect the domain with the set. |
| 965 | */ |
| 966 | __isl_give PWisl_pw_union_pw_aff *FN(PW,intersect_domain_wrapped_domain)isl_pw_union_pw_aff_intersect_domain_wrapped_domain(__isl_take PWisl_pw_union_pw_aff *pw, |
| 967 | __isl_take isl_setisl_map *set) |
| 968 | { |
| 969 | return FN(PW,restrict_domain)isl_pw_union_pw_aff_restrict_domain(pw, set, |
| 970 | &isl_set_intersect_factor_domain); |
| 971 | } |
| 972 | |
| 973 | /* Given a piecewise expression "pw" with domain in a space [A -> B] and |
| 974 | * a set in the space B, intersect the domain with the set. |
| 975 | */ |
| 976 | __isl_give PWisl_pw_union_pw_aff *FN(PW,intersect_domain_wrapped_range)isl_pw_union_pw_aff_intersect_domain_wrapped_range(__isl_take PWisl_pw_union_pw_aff *pw, |
| 977 | __isl_take isl_setisl_map *set) |
| 978 | { |
| 979 | return FN(PW,restrict_domain)isl_pw_union_pw_aff_restrict_domain(pw, set, &isl_set_intersect_factor_range); |
| 980 | } |
| 981 | |
| 982 | /* Subtract "domain' from the domain of "pw". |
| 983 | */ |
| 984 | __isl_give PWisl_pw_union_pw_aff *FN(PW,subtract_domain)isl_pw_union_pw_aff_subtract_domain(__isl_take PWisl_pw_union_pw_aff *pw, |
| 985 | __isl_take isl_setisl_map *domain) |
| 986 | { |
| 987 | return FN(PW,restrict_domain)isl_pw_union_pw_aff_restrict_domain(pw, domain, &isl_set_subtract); |
| 988 | } |
| 989 | |
| 990 | /* Return -1 if the piece "p1" should be sorted before "p2" |
| 991 | * and 1 if it should be sorted after "p2". |
| 992 | * Return 0 if they do not need to be sorted in a specific order. |
| 993 | * |
| 994 | * The two pieces are compared on the basis of their function value expressions. |
| 995 | */ |
| 996 | static int FN(PW,sort_field_cmp)isl_pw_union_pw_aff_sort_field_cmp(const void *p1, const void *p2, void *arg) |
| 997 | { |
| 998 | struct FN(PW,piece)isl_pw_union_pw_aff_piece const *pc1 = p1; |
| 999 | struct FN(PW,piece)isl_pw_union_pw_aff_piece const *pc2 = p2; |
| 1000 | |
| 1001 | return FN(EL,plain_cmp)isl_union_pw_aff_plain_cmp(pc1->FIELDmaff, pc2->FIELDmaff); |
| 1002 | } |
| 1003 | |
| 1004 | /* Sort the pieces of "pw" according to their function value |
| 1005 | * expressions and then combine pairs of adjacent pieces with |
| 1006 | * the same such expression. |
| 1007 | * |
| 1008 | * The sorting is performed in place because it does not |
| 1009 | * change the meaning of "pw", but care needs to be |
| 1010 | * taken not to change any possible other copies of "pw" |
| 1011 | * in case anything goes wrong. |
| 1012 | */ |
| 1013 | static __isl_give PWisl_pw_union_pw_aff *FN(PW,sort_unique)isl_pw_union_pw_aff_sort_unique(__isl_take PWisl_pw_union_pw_aff *pw) |
| 1014 | { |
| 1015 | int i, j; |
| 1016 | isl_setisl_map *set; |
| 1017 | |
| 1018 | if (!pw) |
| 1019 | return NULL((void*)0); |
| 1020 | if (pw->n <= 1) |
| 1021 | return pw; |
| 1022 | if (isl_sort(pw->p, pw->n, sizeof(pw->p[0]), |
| 1023 | &FN(PW,sort_field_cmp)isl_pw_union_pw_aff_sort_field_cmp, NULL((void*)0)) < 0) |
| 1024 | return FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 1025 | for (i = pw->n - 1; i >= 1; --i) { |
| 1026 | isl_bool equal; |
| 1027 | ELisl_union_pw_aff *el, *el_prev; |
| 1028 | isl_setisl_map *set_prev; |
| 1029 | |
| 1030 | el = FN(PW,peek_base_at)isl_pw_union_pw_aff_peek_base_at(pw, i); |
| 1031 | el_prev = FN(PW,peek_base_at)isl_pw_union_pw_aff_peek_base_at(pw, i - 1); |
| 1032 | equal = FN(EL,plain_is_equal)isl_union_pw_aff_plain_is_equal(el, el_prev); |
| 1033 | if (equal < 0) |
| 1034 | return FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 1035 | if (!equal) |
| 1036 | continue; |
| 1037 | set = FN(PW,get_domain_at)isl_pw_union_pw_aff_get_domain_at(pw, i); |
| 1038 | set_prev = FN(PW,get_domain_at)isl_pw_union_pw_aff_get_domain_at(pw, i - 1); |
| 1039 | set = isl_set_union(set_prev, set); |
| 1040 | if (!set) |
| 1041 | return FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 1042 | isl_set_free(pw->p[i].set); |
| 1043 | FN(EL,free)isl_union_pw_aff_free(pw->p[i].FIELDmaff); |
| 1044 | isl_set_free(pw->p[i - 1].set); |
| 1045 | pw->p[i - 1].set = set; |
| 1046 | for (j = i + 1; j < pw->n; ++j) |
| 1047 | pw->p[j - 1] = pw->p[j]; |
| 1048 | pw->n--; |
| 1049 | } |
| 1050 | |
| 1051 | return pw; |
| 1052 | } |
| 1053 | |
| 1054 | /* Compute the gist of "pw" with respect to the domain constraints |
| 1055 | * of "context" for the case where the domain of the last element |
| 1056 | * of "pw" is equal to "context". |
| 1057 | * Compute the gist of this element, replace |
| 1058 | * its domain by the universe and drop all other elements |
| 1059 | * as their domains are necessarily disjoint from "context". |
| 1060 | */ |
| 1061 | static __isl_give PWisl_pw_union_pw_aff *FN(PW,gist_last)isl_pw_union_pw_aff_gist_last(__isl_take PWisl_pw_union_pw_aff *pw, |
| 1062 | __isl_take isl_setisl_map *context) |
| 1063 | { |
| 1064 | int i; |
| 1065 | isl_space *space; |
| 1066 | ELisl_union_pw_aff *el; |
| 1067 | |
| 1068 | for (i = 0; i < pw->n - 1; ++i) { |
| 1069 | isl_set_free(pw->p[i].set); |
| 1070 | FN(EL,free)isl_union_pw_aff_free(pw->p[i].FIELDmaff); |
| 1071 | } |
| 1072 | pw->p[0].FIELDmaff = pw->p[pw->n - 1].FIELDmaff; |
| 1073 | pw->p[0].set = pw->p[pw->n - 1].set; |
| 1074 | pw->n = 1; |
| 1075 | |
| 1076 | space = isl_set_get_space(context); |
| 1077 | el = FN(PW,take_base_at)isl_pw_union_pw_aff_take_base_at(pw, 0); |
| 1078 | el = FN(EL,gist)isl_union_pw_aff_gist(el, context); |
| 1079 | pw = FN(PW,restore_base_at)isl_pw_union_pw_aff_restore_base_at(pw, 0, el); |
| 1080 | context = isl_set_universe(space); |
| 1081 | pw = FN(PW,restore_domain_at)isl_pw_union_pw_aff_restore_domain_at(pw, 0, context); |
| 1082 | |
| 1083 | return pw; |
| 1084 | } |
| 1085 | |
| 1086 | /* Compute the gist of "pw" with respect to the domain constraints |
| 1087 | * of "context". |
| 1088 | * Call "fn_dom" to compute the gist of the domains and |
| 1089 | * "intersect_context" to intersect the domain with the context. |
| 1090 | * |
| 1091 | * If the piecewise expression is empty or the context is the universe, |
| 1092 | * then nothing can be simplified. |
| 1093 | * If "pw" has a single domain and it is equal to "context", |
| 1094 | * then simply replace the domain by the universe. |
| 1095 | * Combine duplicate function value expressions first |
| 1096 | * to increase the chance of "pw" having a single domain. |
| 1097 | */ |
| 1098 | static __isl_give PWisl_pw_union_pw_aff *FN(PW,gist_fn)isl_pw_union_pw_aff_gist_fn(__isl_take PWisl_pw_union_pw_aff *pw, |
| 1099 | __isl_take isl_setisl_map *context, |
| 1100 | __isl_give isl_setisl_map *(*fn_dom)(__isl_take isl_setisl_map *set, |
| 1101 | __isl_take isl_basic_setisl_basic_map *bset), |
| 1102 | __isl_give isl_setisl_map *intersect_context(__isl_take isl_setisl_map *set, |
| 1103 | __isl_take isl_setisl_map *context)) |
| 1104 | { |
| 1105 | int i; |
| 1106 | int is_universe; |
| 1107 | isl_basic_setisl_basic_map *hull = NULL((void*)0); |
| 1108 | |
| 1109 | pw = FN(PW,sort_unique)isl_pw_union_pw_aff_sort_unique(pw); |
| 1110 | if (!pw || !context) |
| 1111 | goto error; |
| 1112 | |
| 1113 | if (pw->n == 0) { |
| 1114 | isl_set_free(context); |
| 1115 | return pw; |
| 1116 | } |
| 1117 | |
| 1118 | is_universe = isl_set_plain_is_universe(context); |
| 1119 | if (is_universe < 0) |
| 1120 | goto error; |
| 1121 | if (is_universe) { |
| 1122 | isl_set_free(context); |
| 1123 | return pw; |
| 1124 | } |
| 1125 | |
| 1126 | FN(PW,align_params_set)isl_pw_union_pw_aff_align_params_set(&pw, &context); |
| 1127 | |
| 1128 | pw = FN(PW,cow)isl_pw_union_pw_aff_cow(pw); |
| 1129 | if (!pw) |
| 1130 | goto error; |
| 1131 | |
| 1132 | if (pw->n == 1) { |
| 1133 | int equal; |
| 1134 | |
| 1135 | equal = isl_set_plain_is_equal(pw->p[0].set, context); |
| 1136 | if (equal < 0) |
| 1137 | goto error; |
| 1138 | if (equal) |
| 1139 | return FN(PW,gist_last)isl_pw_union_pw_aff_gist_last(pw, context); |
| 1140 | } |
| 1141 | |
| 1142 | context = isl_set_compute_divs(context); |
| 1143 | hull = isl_set_simple_hull(isl_set_copy(context)); |
| 1144 | |
| 1145 | for (i = pw->n - 1; i >= 0; --i) { |
| 1146 | isl_setisl_map *set_i; |
| 1147 | ELisl_union_pw_aff *el; |
| 1148 | int empty; |
| 1149 | |
| 1150 | if (i == pw->n - 1) { |
| 1151 | int equal; |
| 1152 | equal = isl_set_plain_is_equal(pw->p[i].set, context); |
| 1153 | if (equal < 0) |
| 1154 | goto error; |
| 1155 | if (equal) { |
| 1156 | isl_basic_set_free(hull); |
| 1157 | return FN(PW,gist_last)isl_pw_union_pw_aff_gist_last(pw, context); |
| 1158 | } |
| 1159 | } |
| 1160 | set_i = FN(PW,get_domain_at)isl_pw_union_pw_aff_get_domain_at(pw, i); |
| 1161 | set_i = intersect_context(set_i, isl_set_copy(context)); |
| 1162 | empty = isl_set_plain_is_empty(set_i); |
| 1163 | el = FN(PW,take_base_at)isl_pw_union_pw_aff_take_base_at(pw, i); |
| 1164 | el = FN(EL,gist)isl_union_pw_aff_gist(el, set_i); |
| 1165 | pw = FN(PW,restore_base_at)isl_pw_union_pw_aff_restore_base_at(pw, i, el); |
| 1166 | set_i = FN(PW,take_domain_at)isl_pw_union_pw_aff_take_domain_at(pw, i); |
| 1167 | set_i = fn_dom(set_i, isl_basic_set_copy(hull)); |
| 1168 | pw = FN(PW,restore_domain_at)isl_pw_union_pw_aff_restore_domain_at(pw, i, set_i); |
| 1169 | if (empty < 0 || !pw) |
| 1170 | goto error; |
| 1171 | if (empty) { |
| 1172 | isl_set_free(pw->p[i].set); |
| 1173 | FN(EL,free)isl_union_pw_aff_free(pw->p[i].FIELDmaff); |
| 1174 | if (i != pw->n - 1) |
| 1175 | pw->p[i] = pw->p[pw->n - 1]; |
| 1176 | pw->n--; |
| 1177 | } |
| 1178 | } |
| 1179 | |
| 1180 | isl_basic_set_free(hull); |
| 1181 | isl_set_free(context); |
| 1182 | |
| 1183 | return pw; |
| 1184 | error: |
| 1185 | FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 1186 | isl_basic_set_free(hull); |
| 1187 | isl_set_free(context); |
| 1188 | return NULL((void*)0); |
| 1189 | } |
| 1190 | |
| 1191 | __isl_give PWisl_pw_union_pw_aff *FN(PW,gist)isl_pw_union_pw_aff_gist(__isl_take PWisl_pw_union_pw_aff *pw, __isl_take isl_setisl_map *context) |
| 1192 | { |
| 1193 | return FN(PW,gist_fn)isl_pw_union_pw_aff_gist_fn(pw, context, &isl_set_gist_basic_set, |
| 1194 | &isl_set_intersect); |
| 1195 | } |
| 1196 | |
| 1197 | __isl_give PWisl_pw_union_pw_aff *FN(PW,gist_params)isl_pw_union_pw_aff_gist_params(__isl_take PWisl_pw_union_pw_aff *pw, |
| 1198 | __isl_take isl_setisl_map *context) |
| 1199 | { |
| 1200 | return FN(PW,gist_fn)isl_pw_union_pw_aff_gist_fn(pw, context, &isl_set_gist_params_basic_set, |
| 1201 | &isl_set_intersect_params); |
| 1202 | } |
| 1203 | |
| 1204 | /* Coalesce the domains of "pw". |
| 1205 | * |
| 1206 | * Prior to the actual coalescing, first sort the pieces such that |
| 1207 | * pieces with the same function value expression are combined |
| 1208 | * into a single piece, the combined domain of which can then |
| 1209 | * be coalesced. |
| 1210 | */ |
| 1211 | __isl_give PWisl_pw_union_pw_aff *FN(PW,coalesce)isl_pw_union_pw_aff_coalesce(__isl_take PWisl_pw_union_pw_aff *pw) |
| 1212 | { |
| 1213 | int i; |
| 1214 | isl_size n; |
| 1215 | |
| 1216 | pw = FN(PW,sort_unique)isl_pw_union_pw_aff_sort_unique(pw); |
| 1217 | n = FN(PW,n_piece)isl_pw_union_pw_aff_n_piece(pw); |
| 1218 | if (n < 0) |
| 1219 | return FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 1220 | |
| 1221 | for (i = 0; i < n; ++i) { |
| 1222 | pw->p[i].set = isl_set_coalesce(pw->p[i].set); |
| 1223 | if (!pw->p[i].set) |
| 1224 | goto error; |
| 1225 | } |
| 1226 | |
| 1227 | return pw; |
| 1228 | error: |
| 1229 | FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 1230 | return NULL((void*)0); |
| 1231 | } |
| 1232 | |
| 1233 | isl_ctx *FN(PW,get_ctx)isl_pw_union_pw_aff_get_ctx(__isl_keep PWisl_pw_union_pw_aff *pw) |
| 1234 | { |
| 1235 | return pw ? isl_space_get_ctx(pw->dim) : NULL((void*)0); |
| 1236 | } |
| 1237 | |
| 1238 | isl_bool FN(PW,involves_dims)isl_pw_union_pw_aff_involves_dims(__isl_keep PWisl_pw_union_pw_aff *pw, enum isl_dim_type type, |
| 1239 | unsigned first, unsigned n) |
| 1240 | { |
| 1241 | int i; |
| 1242 | enum isl_dim_type set_type; |
| 1243 | |
| 1244 | if (!pw) |
| 1245 | return isl_bool_error; |
| 1246 | if (pw->n == 0 || n == 0) |
| 1247 | return isl_bool_false; |
| 1248 | |
| 1249 | set_type = type == isl_dim_in ? isl_dim_set : type; |
| 1250 | |
| 1251 | for (i = 0; i < pw->n; ++i) { |
| 1252 | isl_bool involves = FN(EL,involves_dims)isl_union_pw_aff_involves_dims(pw->p[i].FIELDmaff, |
| 1253 | type, first, n); |
| 1254 | if (involves < 0 || involves) |
| 1255 | return involves; |
| 1256 | involves = isl_set_involves_dims(pw->p[i].set, |
| 1257 | set_type, first, n); |
| 1258 | if (involves < 0 || involves) |
| 1259 | return involves; |
| 1260 | } |
| 1261 | return isl_bool_false; |
| 1262 | } |
| 1263 | |
| 1264 | __isl_give PWisl_pw_union_pw_aff *FN(PW,set_dim_name)isl_pw_union_pw_aff_set_dim_name(__isl_take PWisl_pw_union_pw_aff *pw, |
| 1265 | enum isl_dim_type type, unsigned pos, const char *s) |
| 1266 | { |
| 1267 | isl_space *space; |
| 1268 | |
| 1269 | space = FN(PW,get_space)isl_pw_union_pw_aff_get_space(pw); |
| 1270 | space = isl_space_set_dim_name(space, type, pos, s); |
| 1271 | return FN(PW,reset_space)isl_pw_union_pw_aff_reset_space(pw, space); |
| 1272 | } |
| 1273 | |
| 1274 | __isl_give PWisl_pw_union_pw_aff *FN(PW,drop_dims)isl_pw_union_pw_aff_drop_dims(__isl_take PWisl_pw_union_pw_aff *pw, |
| 1275 | enum isl_dim_type type, unsigned first, unsigned n) |
| 1276 | { |
| 1277 | int i; |
| 1278 | isl_size n_piece; |
| 1279 | enum isl_dim_type set_type; |
| 1280 | isl_space *space; |
| 1281 | |
| 1282 | n_piece = FN(PW,n_piece)isl_pw_union_pw_aff_n_piece(pw); |
| 1283 | if (n_piece < 0) |
| 1284 | return FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 1285 | if (n == 0 && !isl_space_get_tuple_name(pw->dim, type)) |
| 1286 | return pw; |
| 1287 | |
| 1288 | set_type = type == isl_dim_in ? isl_dim_set : type; |
| 1289 | |
| 1290 | space = FN(PW,take_space)isl_pw_union_pw_aff_take_space(pw); |
| 1291 | space = isl_space_drop_dims(space, type, first, n); |
| 1292 | pw = FN(PW,restore_space)isl_pw_union_pw_aff_restore_space(pw, space); |
| 1293 | for (i = 0; i < n_piece; ++i) { |
| 1294 | isl_setisl_map *domain; |
| 1295 | ELisl_union_pw_aff *el; |
| 1296 | |
| 1297 | el = FN(PW,take_base_at)isl_pw_union_pw_aff_take_base_at(pw, i); |
| 1298 | el = FN(EL,drop_dims)isl_union_pw_aff_drop_dims(el, type, first, n); |
| 1299 | pw = FN(PW,restore_base_at)isl_pw_union_pw_aff_restore_base_at(pw, i, el); |
| 1300 | if (type == isl_dim_out) |
| 1301 | continue; |
| 1302 | domain = FN(PW,take_domain_at)isl_pw_union_pw_aff_take_domain_at(pw, i); |
| 1303 | domain = isl_set_drop(domain, set_type, first, n); |
| 1304 | pw = FN(PW,restore_domain_at)isl_pw_union_pw_aff_restore_domain_at(pw, i, domain); |
| 1305 | } |
| 1306 | |
| 1307 | return pw; |
| 1308 | } |
| 1309 | |
| 1310 | /* This function is very similar to drop_dims. |
| 1311 | * The only difference is that the cells may still involve |
| 1312 | * the specified dimensions. They are removed using |
| 1313 | * isl_set_project_out instead of isl_set_drop. |
| 1314 | */ |
| 1315 | __isl_give PWisl_pw_union_pw_aff *FN(PW,project_out)isl_pw_union_pw_aff_project_out(__isl_take PWisl_pw_union_pw_aff *pw, |
| 1316 | enum isl_dim_type type, unsigned first, unsigned n) |
| 1317 | { |
| 1318 | int i; |
| 1319 | isl_size n_piece; |
| 1320 | enum isl_dim_type set_type; |
| 1321 | isl_space *space; |
| 1322 | |
| 1323 | n_piece = FN(PW,n_piece)isl_pw_union_pw_aff_n_piece(pw); |
| 1324 | if (n_piece < 0) |
| 1325 | return FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 1326 | if (n == 0 && !isl_space_get_tuple_name(pw->dim, type)) |
| 1327 | return pw; |
| 1328 | |
| 1329 | set_type = type == isl_dim_in ? isl_dim_set : type; |
| 1330 | |
| 1331 | space = FN(PW,take_space)isl_pw_union_pw_aff_take_space(pw); |
| 1332 | space = isl_space_drop_dims(space, type, first, n); |
| 1333 | pw = FN(PW,restore_space)isl_pw_union_pw_aff_restore_space(pw, space); |
| 1334 | for (i = 0; i < n_piece; ++i) { |
| 1335 | isl_setisl_map *domain; |
| 1336 | ELisl_union_pw_aff *el; |
| 1337 | |
| 1338 | domain = FN(PW,take_domain_at)isl_pw_union_pw_aff_take_domain_at(pw, i); |
| 1339 | domain = isl_set_project_out(domain, set_type, first, n); |
| 1340 | pw = FN(PW,restore_domain_at)isl_pw_union_pw_aff_restore_domain_at(pw, i, domain); |
| 1341 | el = FN(PW,take_base_at)isl_pw_union_pw_aff_take_base_at(pw, i); |
| 1342 | el = FN(EL,drop_dims)isl_union_pw_aff_drop_dims(el, type, first, n); |
| 1343 | pw = FN(PW,restore_base_at)isl_pw_union_pw_aff_restore_base_at(pw, i, el); |
| 1344 | } |
| 1345 | |
| 1346 | return pw; |
| 1347 | } |
| 1348 | |
| 1349 | /* Project the domain of pw onto its parameter space. |
| 1350 | */ |
| 1351 | __isl_give PWisl_pw_union_pw_aff *FN(PW,project_domain_on_params)isl_pw_union_pw_aff_project_domain_on_params(__isl_take PWisl_pw_union_pw_aff *pw) |
| 1352 | { |
| 1353 | isl_space *space; |
| 1354 | isl_size n; |
| 1355 | |
| 1356 | n = FN(PW,dim)isl_pw_union_pw_aff_dim(pw, isl_dim_in); |
| 1357 | if (n < 0) |
| 1358 | return FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 1359 | pw = FN(PW,project_out)isl_pw_union_pw_aff_project_out(pw, isl_dim_in, 0, n); |
| 1360 | space = FN(PW,get_domain_space)isl_pw_union_pw_aff_get_domain_space(pw); |
| 1361 | space = isl_space_params(space); |
| 1362 | pw = FN(PW,reset_domain_space)isl_pw_union_pw_aff_reset_domain_space(pw, space); |
| 1363 | return pw; |
| 1364 | } |
| 1365 | |
| 1366 | /* Drop all parameters not referenced by "pw". |
| 1367 | */ |
| 1368 | __isl_give PWisl_pw_union_pw_aff *FN(PW,drop_unused_params)isl_pw_union_pw_aff_drop_unused_params(__isl_take PWisl_pw_union_pw_aff *pw) |
| 1369 | { |
| 1370 | isl_size n; |
| 1371 | int i; |
| 1372 | |
| 1373 | if (FN(PW,check_named_params)isl_pw_union_pw_aff_check_named_params(pw) < 0) |
| 1374 | return FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 1375 | |
| 1376 | n = FN(PW,dim)isl_pw_union_pw_aff_dim(pw, isl_dim_param); |
| 1377 | if (n < 0) |
| 1378 | return FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 1379 | for (i = n - 1; i >= 0; i--) { |
| 1380 | isl_bool involves; |
| 1381 | |
| 1382 | involves = FN(PW,involves_dims)isl_pw_union_pw_aff_involves_dims(pw, isl_dim_param, i, 1); |
| 1383 | if (involves < 0) |
| 1384 | return FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 1385 | if (!involves) |
| 1386 | pw = FN(PW,drop_dims)isl_pw_union_pw_aff_drop_dims(pw, isl_dim_param, i, 1); |
| 1387 | } |
| 1388 | |
| 1389 | return pw; |
| 1390 | } |
| 1391 | |
| 1392 | isl_size FN(PW,dim)isl_pw_union_pw_aff_dim(__isl_keep PWisl_pw_union_pw_aff *pw, enum isl_dim_type type) |
| 1393 | { |
| 1394 | return isl_space_dim(FN(PW,peek_space)isl_pw_union_pw_aff_peek_space(pw), type); |
| 1395 | } |
| 1396 | |
| 1397 | __isl_give isl_space *FN(PW,get_domain_space)isl_pw_union_pw_aff_get_domain_space(__isl_keep PWisl_pw_union_pw_aff *pw) |
| 1398 | { |
| 1399 | return pw ? isl_space_domain(isl_space_copy(pw->dim)) : NULL((void*)0); |
| 1400 | } |
| 1401 | |
| 1402 | /* Return the position of the dimension of the given type and name |
| 1403 | * in "pw". |
| 1404 | * Return -1 if no such dimension can be found. |
| 1405 | */ |
| 1406 | int FN(PW,find_dim_by_name)isl_pw_union_pw_aff_find_dim_by_name(__isl_keep PWisl_pw_union_pw_aff *pw, |
| 1407 | enum isl_dim_type type, const char *name) |
| 1408 | { |
| 1409 | if (!pw) |
| 1410 | return -1; |
| 1411 | return isl_space_find_dim_by_name(pw->dim, type, name); |
| 1412 | } |
| 1413 | |
| 1414 | /* Return the position of the dimension of the given type and identifier |
| 1415 | * in "pw". |
| 1416 | * Return -1 if no such dimension can be found. |
| 1417 | */ |
| 1418 | static int FN(PW,find_dim_by_id)isl_pw_union_pw_aff_find_dim_by_id(__isl_keep PWisl_pw_union_pw_aff *pw, |
| 1419 | enum isl_dim_type type, __isl_keep isl_id *id) |
| 1420 | { |
| 1421 | isl_space *space; |
| 1422 | |
| 1423 | space = FN(PW,peek_space)isl_pw_union_pw_aff_peek_space(pw); |
| 1424 | return isl_space_find_dim_by_id(space, type, id); |
| 1425 | } |
| 1426 | |
| 1427 | /* Does the piecewise expression "pw" depend in any way |
| 1428 | * on the parameter with identifier "id"? |
| 1429 | */ |
| 1430 | isl_bool FN(PW,involves_param_id)isl_pw_union_pw_aff_involves_param_id(__isl_keep PWisl_pw_union_pw_aff *pw, __isl_keep isl_id *id) |
| 1431 | { |
| 1432 | int pos; |
| 1433 | |
| 1434 | if (!pw || !id) |
| 1435 | return isl_bool_error; |
| 1436 | if (pw->n == 0) |
| 1437 | return isl_bool_false; |
| 1438 | |
| 1439 | pos = FN(PW,find_dim_by_id)isl_pw_union_pw_aff_find_dim_by_id(pw, isl_dim_param, id); |
| 1440 | if (pos < 0) |
| 1441 | return isl_bool_false; |
| 1442 | return FN(PW,involves_dims)isl_pw_union_pw_aff_involves_dims(pw, isl_dim_param, pos, 1); |
| 1443 | } |
| 1444 | |
| 1445 | /* Reset the space of "pw". Since we don't know if the elements |
| 1446 | * represent the spaces themselves or their domains, we pass along |
| 1447 | * both when we call their reset_space_and_domain. |
| 1448 | */ |
| 1449 | static __isl_give PWisl_pw_union_pw_aff *FN(PW,reset_space_and_domain)isl_pw_union_pw_aff_reset_space_and_domain(__isl_take PWisl_pw_union_pw_aff *pw, |
| 1450 | __isl_take isl_space *space, __isl_take isl_space *domain) |
| 1451 | { |
| 1452 | int i; |
| 1453 | isl_size n; |
| 1454 | |
| 1455 | n = FN(PW,n_piece)isl_pw_union_pw_aff_n_piece(pw); |
| 1456 | if (n < 0 || !space || !domain) |
| 1457 | goto error; |
| 1458 | |
| 1459 | for (i = 0; i < n; ++i) { |
| 1460 | isl_setisl_map *set; |
| 1461 | ELisl_union_pw_aff *el; |
| 1462 | |
| 1463 | set = FN(PW,take_domain_at)isl_pw_union_pw_aff_take_domain_at(pw, i); |
| 1464 | set = isl_set_reset_space(set, isl_space_copy(domain)); |
| 1465 | pw = FN(PW,restore_domain_at)isl_pw_union_pw_aff_restore_domain_at(pw, i, set); |
| 1466 | el = FN(PW,take_base_at)isl_pw_union_pw_aff_take_base_at(pw, i); |
| 1467 | el = FN(EL,reset_space_and_domain)isl_union_pw_aff_reset_space_and_domain(el, |
| 1468 | isl_space_copy(space), isl_space_copy(domain)); |
| 1469 | pw = FN(PW,restore_base_at)isl_pw_union_pw_aff_restore_base_at(pw, i, el); |
| 1470 | } |
| 1471 | |
| 1472 | isl_space_free(domain); |
| 1473 | |
| 1474 | pw = FN(PW,restore_space)isl_pw_union_pw_aff_restore_space(pw, space); |
| 1475 | |
| 1476 | return pw; |
| 1477 | error: |
| 1478 | isl_space_free(domain); |
| 1479 | isl_space_free(space); |
| 1480 | FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 1481 | return NULL((void*)0); |
| 1482 | } |
| 1483 | |
| 1484 | __isl_give PWisl_pw_union_pw_aff *FN(PW,reset_domain_space)isl_pw_union_pw_aff_reset_domain_space(__isl_take PWisl_pw_union_pw_aff *pw, |
| 1485 | __isl_take isl_space *domain) |
| 1486 | { |
| 1487 | isl_space *space; |
| 1488 | |
| 1489 | space = isl_space_extend_domain_with_range(isl_space_copy(domain), |
| 1490 | FN(PW,get_space)isl_pw_union_pw_aff_get_space(pw)); |
| 1491 | return FN(PW,reset_space_and_domain)isl_pw_union_pw_aff_reset_space_and_domain(pw, space, domain); |
| 1492 | } |
| 1493 | |
| 1494 | __isl_give PWisl_pw_union_pw_aff *FN(PW,reset_space)isl_pw_union_pw_aff_reset_space(__isl_take PWisl_pw_union_pw_aff *pw, |
| 1495 | __isl_take isl_space *space) |
| 1496 | { |
| 1497 | isl_space *domain; |
| 1498 | |
| 1499 | domain = isl_space_domain(isl_space_copy(space)); |
| 1500 | return FN(PW,reset_space_and_domain)isl_pw_union_pw_aff_reset_space_and_domain(pw, space, domain); |
| 1501 | } |
| 1502 | |
| 1503 | __isl_give PWisl_pw_union_pw_aff *FN(PW,set_tuple_id)isl_pw_union_pw_aff_set_tuple_id(__isl_take PWisl_pw_union_pw_aff *pw, enum isl_dim_type type, |
| 1504 | __isl_take isl_id *id) |
| 1505 | { |
| 1506 | isl_space *space; |
| 1507 | |
| 1508 | pw = FN(PW,cow)isl_pw_union_pw_aff_cow(pw); |
| 1509 | if (!pw) |
| 1510 | goto error; |
| 1511 | |
| 1512 | space = FN(PW,get_space)isl_pw_union_pw_aff_get_space(pw); |
| 1513 | space = isl_space_set_tuple_id(space, type, id); |
| 1514 | |
| 1515 | return FN(PW,reset_space)isl_pw_union_pw_aff_reset_space(pw, space); |
| 1516 | error: |
| 1517 | isl_id_free(id); |
| 1518 | return FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 1519 | } |
| 1520 | |
| 1521 | /* Drop the id on the specified tuple. |
| 1522 | */ |
| 1523 | __isl_give PWisl_pw_union_pw_aff *FN(PW,reset_tuple_id)isl_pw_union_pw_aff_reset_tuple_id(__isl_take PWisl_pw_union_pw_aff *pw, enum isl_dim_type type) |
| 1524 | { |
| 1525 | isl_space *space; |
| 1526 | |
| 1527 | if (!pw) |
| 1528 | return NULL((void*)0); |
| 1529 | if (!FN(PW,has_tuple_id)isl_pw_union_pw_aff_has_tuple_id(pw, type)) |
| 1530 | return pw; |
| 1531 | |
| 1532 | pw = FN(PW,cow)isl_pw_union_pw_aff_cow(pw); |
| 1533 | if (!pw) |
| 1534 | return NULL((void*)0); |
| 1535 | |
| 1536 | space = FN(PW,get_space)isl_pw_union_pw_aff_get_space(pw); |
| 1537 | space = isl_space_reset_tuple_id(space, type); |
| 1538 | |
| 1539 | return FN(PW,reset_space)isl_pw_union_pw_aff_reset_space(pw, space); |
| 1540 | } |
| 1541 | |
| 1542 | __isl_give PWisl_pw_union_pw_aff *FN(PW,set_dim_id)isl_pw_union_pw_aff_set_dim_id(__isl_take PWisl_pw_union_pw_aff *pw, |
| 1543 | enum isl_dim_type type, unsigned pos, __isl_take isl_id *id) |
| 1544 | { |
| 1545 | isl_space *space; |
| 1546 | |
| 1547 | space = FN(PW,get_space)isl_pw_union_pw_aff_get_space(pw); |
| 1548 | space = isl_space_set_dim_id(space, type, pos, id); |
| 1549 | return FN(PW,reset_space)isl_pw_union_pw_aff_reset_space(pw, space); |
| 1550 | } |
| 1551 | |
| 1552 | /* Reset the user pointer on all identifiers of parameters and tuples |
| 1553 | * of the space of "pw". |
| 1554 | */ |
| 1555 | __isl_give PWisl_pw_union_pw_aff *FN(PW,reset_user)isl_pw_union_pw_aff_reset_user(__isl_take PWisl_pw_union_pw_aff *pw) |
| 1556 | { |
| 1557 | isl_space *space; |
| 1558 | |
| 1559 | space = FN(PW,get_space)isl_pw_union_pw_aff_get_space(pw); |
| 1560 | space = isl_space_reset_user(space); |
| 1561 | |
| 1562 | return FN(PW,reset_space)isl_pw_union_pw_aff_reset_space(pw, space); |
| 1563 | } |
| 1564 | |
| 1565 | isl_size FN(PW,n_piece)isl_pw_union_pw_aff_n_piece(__isl_keep PWisl_pw_union_pw_aff *pw) |
| 1566 | { |
| 1567 | return pw ? pw->n : isl_size_error((int) -1); |
| 1568 | } |
| 1569 | |
| 1570 | isl_stat FN(PW,foreach_piece)isl_pw_union_pw_aff_foreach_piece(__isl_keep PWisl_pw_union_pw_aff *pw, |
| 1571 | isl_stat (*fn)(__isl_take isl_setisl_map *set, __isl_take ELisl_union_pw_aff *el, void *user), |
| 1572 | void *user) |
| 1573 | { |
| 1574 | int i; |
| 1575 | |
| 1576 | if (!pw) |
| 1577 | return isl_stat_error; |
| 1578 | |
| 1579 | for (i = 0; i < pw->n; ++i) |
| 1580 | if (fn(isl_set_copy(pw->p[i].set), |
| 1581 | FN(EL,copy)isl_union_pw_aff_copy(pw->p[i].FIELDmaff), user) < 0) |
| 1582 | return isl_stat_error; |
| 1583 | |
| 1584 | return isl_stat_ok; |
| 1585 | } |
| 1586 | |
| 1587 | /* Does "test" succeed on every cell of "pw"? |
| 1588 | */ |
| 1589 | isl_bool FN(PW,every_piece)isl_pw_union_pw_aff_every_piece(__isl_keep PWisl_pw_union_pw_aff *pw, |
| 1590 | isl_bool (*test)(__isl_keep isl_setisl_map *set, |
| 1591 | __isl_keep ELisl_union_pw_aff *el, void *user), void *user) |
| 1592 | { |
| 1593 | int i; |
| 1594 | |
| 1595 | if (!pw) |
| 1596 | return isl_bool_error; |
| 1597 | |
| 1598 | for (i = 0; i < pw->n; ++i) { |
| 1599 | isl_bool r; |
| 1600 | |
| 1601 | r = test(pw->p[i].set, pw->p[i].FIELDmaff, user); |
| 1602 | if (r < 0 || !r) |
| 1603 | return r; |
| 1604 | } |
| 1605 | |
| 1606 | return isl_bool_true; |
| 1607 | } |
| 1608 | |
| 1609 | /* Is "pw" defined over a single universe domain? |
| 1610 | * |
| 1611 | * If the default value of this piecewise type is zero, |
| 1612 | * then a "pw" with a zero number of cells is also accepted |
| 1613 | * as it represents the default zero value. |
| 1614 | */ |
| 1615 | isl_bool FN(FN(PW,isa),BASE)isl_pw_union_pw_aff_isa_union_pw_aff(__isl_keep PWisl_pw_union_pw_aff *pw) |
| 1616 | { |
| 1617 | isl_size n; |
| 1618 | |
| 1619 | n = FN(PW,n_piece)isl_pw_union_pw_aff_n_piece(pw); |
| 1620 | if (n < 0) |
| 1621 | return isl_bool_error; |
| 1622 | if (DEFAULT_IS_ZERO0 && n == 0) |
| 1623 | return isl_bool_true; |
| 1624 | if (n != 1) |
| 1625 | return isl_bool_false; |
| 1626 | return isl_set_plain_is_universe(FN(PW,peek_domain_at)isl_pw_union_pw_aff_peek_domain_at(pw, 0)); |
| 1627 | } |
| 1628 | |
| 1629 | /* Return a zero base expression in the same space (and of the same type) |
| 1630 | * as "pw". |
| 1631 | */ |
| 1632 | static __isl_give ELisl_union_pw_aff *FN(EL,zero_like_type)isl_union_pw_aff_zero_like_type(__isl_take PWisl_pw_union_pw_aff *pw OPT_TYPE_PARAM) |
| 1633 | { |
| 1634 | isl_space *space; |
| 1635 | |
| 1636 | space = FN(PW,get_space)isl_pw_union_pw_aff_get_space(pw); |
| 1637 | FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 1638 | return FN(EL,zero_in_space)isl_union_pw_aff_zero_in_space(space OPT_TYPE_ARG(NO_LOC)); |
| 1639 | } |
| 1640 | |
| 1641 | #ifndef HAS_TYPE |
| 1642 | /* Return a zero base expression in the same space as "pw". |
| 1643 | */ |
| 1644 | static __isl_give ELisl_union_pw_aff *FN(EL,zero_like)isl_union_pw_aff_zero_like(__isl_take PWisl_pw_union_pw_aff *pw) |
| 1645 | { |
| 1646 | return FN(EL,zero_like_type)isl_union_pw_aff_zero_like_type(pw); |
| 1647 | } |
| 1648 | #else |
| 1649 | /* Return a zero base expression in the same space and of the same type |
| 1650 | * as "pw". |
| 1651 | * |
| 1652 | * Pass along the type as an explicit argument for uniform handling |
| 1653 | * in isl_*_zero_like_type. |
| 1654 | */ |
| 1655 | static __isl_give ELisl_union_pw_aff *FN(EL,zero_like)isl_union_pw_aff_zero_like(__isl_take PWisl_pw_union_pw_aff *pw) |
| 1656 | { |
| 1657 | enum isl_fold type; |
| 1658 | |
| 1659 | type = FN(PW,get_type)isl_pw_union_pw_aff_get_type(pw); |
| 1660 | if (type < 0) |
| 1661 | goto error; |
| 1662 | return FN(EL,zero_like_type)isl_union_pw_aff_zero_like_type(pw, type); |
| 1663 | error: |
| 1664 | FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 1665 | return NULL((void*)0); |
| 1666 | } |
| 1667 | #endif |
| 1668 | |
| 1669 | /* Given that "pw" is defined over a single universe domain, |
| 1670 | * return the base expression associated to this domain. |
| 1671 | * |
| 1672 | * If the number of cells is zero, then "pw" is of a piecewise type |
| 1673 | * with a default zero value and effectively represents zero. |
| 1674 | * In this case, create a zero base expression in the same space |
| 1675 | * (and with the same type). |
| 1676 | * Otherwise, simply extract the associated base expression. |
| 1677 | */ |
| 1678 | __isl_give ELisl_union_pw_aff *FN(FN(PW,as),BASE)isl_pw_union_pw_aff_as_union_pw_aff(__isl_take PWisl_pw_union_pw_aff *pw) |
| 1679 | { |
| 1680 | isl_bool is_total; |
| 1681 | isl_size n; |
| 1682 | ELisl_union_pw_aff *el; |
| 1683 | |
| 1684 | is_total = FN(FN(PW,isa),BASE)isl_pw_union_pw_aff_isa_union_pw_aff(pw); |
| 1685 | if (is_total < 0) |
| 1686 | goto error; |
| 1687 | if (!is_total) |
| 1688 | isl_die(FN(PW,get_ctx)(pw), isl_error_invalid,do { isl_handle_error(isl_pw_union_pw_aff_get_ctx(pw), isl_error_invalid , "expecting single total function", "polly/lib/External/isl/isl_pw_templ.c" , 1689); goto error; } while (0) |
| 1689 | "expecting single total function", goto error)do { isl_handle_error(isl_pw_union_pw_aff_get_ctx(pw), isl_error_invalid , "expecting single total function", "polly/lib/External/isl/isl_pw_templ.c" , 1689); goto error; } while (0); |
| 1690 | n = FN(PW,n_piece)isl_pw_union_pw_aff_n_piece(pw); |
| 1691 | if (n < 0) |
| 1692 | goto error; |
| 1693 | if (n == 0) |
| 1694 | return FN(EL,zero_like)isl_union_pw_aff_zero_like(pw); |
| 1695 | el = FN(PW,take_base_at)isl_pw_union_pw_aff_take_base_at(pw, 0); |
| 1696 | FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 1697 | return el; |
| 1698 | error: |
| 1699 | FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 1700 | return NULL((void*)0); |
| 1701 | } |
| 1702 | |
| 1703 | #ifdef HAS_TYPE |
| 1704 | /* Negate the type of "pw". |
| 1705 | */ |
| 1706 | static __isl_give PWisl_pw_union_pw_aff *FN(PW,negate_type)isl_pw_union_pw_aff_negate_type(__isl_take PWisl_pw_union_pw_aff *pw) |
| 1707 | { |
| 1708 | pw = FN(PW,cow)isl_pw_union_pw_aff_cow(pw); |
| 1709 | if (!pw) |
| 1710 | return NULL((void*)0); |
| 1711 | pw->type = isl_fold_type_negate(pw->type); |
| 1712 | return pw; |
| 1713 | } |
| 1714 | #else |
| 1715 | /* Negate the type of "pw". |
| 1716 | * Since "pw" does not have a type, do nothing. |
| 1717 | */ |
| 1718 | static __isl_give PWisl_pw_union_pw_aff *FN(PW,negate_type)isl_pw_union_pw_aff_negate_type(__isl_take PWisl_pw_union_pw_aff *pw) |
| 1719 | { |
| 1720 | return pw; |
| 1721 | } |
| 1722 | #endif |
| 1723 | |
| 1724 | /* Multiply the pieces of "pw" by "v" and return the result. |
| 1725 | */ |
| 1726 | __isl_give PWisl_pw_union_pw_aff *FN(PW,scale_val)isl_pw_union_pw_aff_scale_val(__isl_take PWisl_pw_union_pw_aff *pw, __isl_take isl_val *v) |
| 1727 | { |
| 1728 | int i; |
| 1729 | isl_size n; |
| 1730 | |
| 1731 | if (!pw || !v) |
| 1732 | goto error; |
| 1733 | |
| 1734 | if (isl_val_is_one(v)) { |
| 1735 | isl_val_free(v); |
| 1736 | return pw; |
| 1737 | } |
| 1738 | if (pw && DEFAULT_IS_ZERO0 && isl_val_is_zero(v)) { |
| 1739 | PWisl_pw_union_pw_aff *zero; |
| 1740 | isl_space *space = FN(PW,get_space)isl_pw_union_pw_aff_get_space(pw); |
| 1741 | zero = FN(PW,ZERO)isl_pw_union_pw_aff_empty(space OPT_TYPE_ARG(pw->)); |
| 1742 | FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 1743 | isl_val_free(v); |
| 1744 | return zero; |
| 1745 | } |
| 1746 | if (isl_val_is_neg(v)) |
| 1747 | pw = FN(PW,negate_type)isl_pw_union_pw_aff_negate_type(pw); |
| 1748 | n = FN(PW,n_piece)isl_pw_union_pw_aff_n_piece(pw); |
| 1749 | if (n < 0) |
| 1750 | goto error; |
| 1751 | |
| 1752 | for (i = 0; i < n; ++i) { |
| 1753 | ELisl_union_pw_aff *el; |
| 1754 | |
| 1755 | el = FN(PW,take_base_at)isl_pw_union_pw_aff_take_base_at(pw, i); |
| 1756 | el = FN(EL,scale_val)isl_union_pw_aff_scale_val(el, isl_val_copy(v)); |
| 1757 | pw = FN(PW,restore_base_at)isl_pw_union_pw_aff_restore_base_at(pw, i, el); |
| 1758 | } |
| 1759 | |
| 1760 | isl_val_free(v); |
| 1761 | return pw; |
| 1762 | error: |
| 1763 | isl_val_free(v); |
| 1764 | FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 1765 | return NULL((void*)0); |
| 1766 | } |
| 1767 | |
| 1768 | /* Divide the pieces of "pw" by "v" and return the result. |
| 1769 | */ |
| 1770 | __isl_give PWisl_pw_union_pw_aff *FN(PW,scale_down_val)isl_pw_union_pw_aff_scale_down_val(__isl_take PWisl_pw_union_pw_aff *pw, __isl_take isl_val *v) |
| 1771 | { |
| 1772 | int i; |
| 1773 | isl_size n; |
| 1774 | |
| 1775 | if (!pw || !v) |
| 1776 | goto error; |
| 1777 | |
| 1778 | if (isl_val_is_one(v)) { |
| 1779 | isl_val_free(v); |
| 1780 | return pw; |
| 1781 | } |
| 1782 | |
| 1783 | if (!isl_val_is_rat(v)) |
| 1784 | isl_die(isl_val_get_ctx(v), isl_error_invalid,do { isl_handle_error(isl_val_get_ctx(v), isl_error_invalid, "expecting rational factor" , "polly/lib/External/isl/isl_pw_templ.c", 1785); goto error; } while (0) |
| 1785 | "expecting rational factor", goto error)do { isl_handle_error(isl_val_get_ctx(v), isl_error_invalid, "expecting rational factor" , "polly/lib/External/isl/isl_pw_templ.c", 1785); goto error; } while (0); |
| 1786 | if (isl_val_is_zero(v)) |
| 1787 | isl_die(isl_val_get_ctx(v), isl_error_invalid,do { isl_handle_error(isl_val_get_ctx(v), isl_error_invalid, "cannot scale down by zero" , "polly/lib/External/isl/isl_pw_templ.c", 1788); goto error; } while (0) |
| 1788 | "cannot scale down by zero", goto error)do { isl_handle_error(isl_val_get_ctx(v), isl_error_invalid, "cannot scale down by zero" , "polly/lib/External/isl/isl_pw_templ.c", 1788); goto error; } while (0); |
| 1789 | |
| 1790 | if (isl_val_is_neg(v)) |
| 1791 | pw = FN(PW,negate_type)isl_pw_union_pw_aff_negate_type(pw); |
| 1792 | n = FN(PW,n_piece)isl_pw_union_pw_aff_n_piece(pw); |
| 1793 | if (n < 0) |
| 1794 | goto error; |
| 1795 | |
| 1796 | for (i = 0; i < n; ++i) { |
| 1797 | ELisl_union_pw_aff *el; |
| 1798 | |
| 1799 | el = FN(PW,take_base_at)isl_pw_union_pw_aff_take_base_at(pw, i); |
| 1800 | el = FN(EL,scale_down_val)isl_union_pw_aff_scale_down_val(el, isl_val_copy(v)); |
| 1801 | pw = FN(PW,restore_base_at)isl_pw_union_pw_aff_restore_base_at(pw, i, el); |
| 1802 | } |
| 1803 | |
| 1804 | isl_val_free(v); |
| 1805 | return pw; |
| 1806 | error: |
| 1807 | isl_val_free(v); |
| 1808 | FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 1809 | return NULL((void*)0); |
| 1810 | } |
| 1811 | |
| 1812 | /* Apply some normalization to "pw". |
| 1813 | * In particular, sort the pieces according to their function value |
| 1814 | * expressions, combining pairs of adjacent pieces with |
| 1815 | * the same such expression, and then normalize the domains of the pieces. |
| 1816 | * |
| 1817 | * We normalize in place, but if anything goes wrong we need |
| 1818 | * to return NULL, so we need to make sure we don't change the |
| 1819 | * meaning of any possible other copies of "pw". |
| 1820 | */ |
| 1821 | static __isl_give PWisl_pw_union_pw_aff *FN(PW,normalize)isl_pw_union_pw_aff_normalize(__isl_take PWisl_pw_union_pw_aff *pw) |
| 1822 | { |
| 1823 | int i; |
| 1824 | isl_setisl_map *set; |
| 1825 | |
| 1826 | pw = FN(PW,sort_unique)isl_pw_union_pw_aff_sort_unique(pw); |
| 1827 | if (!pw) |
| 1828 | return NULL((void*)0); |
| 1829 | for (i = 0; i < pw->n; ++i) { |
| 1830 | set = isl_set_normalize(isl_set_copy(pw->p[i].set)); |
| 1831 | if (!set) |
| 1832 | return FN(PW,free)isl_pw_union_pw_aff_free(pw); |
| 1833 | isl_set_free(pw->p[i].set); |
| 1834 | pw->p[i].set = set; |
| 1835 | } |
| 1836 | |
| 1837 | return pw; |
| 1838 | } |
| 1839 | |
| 1840 | /* Is pw1 obviously equal to pw2? |
| 1841 | * That is, do they have obviously identical cells and obviously identical |
| 1842 | * elements on each cell? |
| 1843 | * |
| 1844 | * If "pw1" or "pw2" contain any NaNs, then they are considered |
| 1845 | * not to be the same. A NaN is not equal to anything, not even |
| 1846 | * to another NaN. |
| 1847 | */ |
| 1848 | isl_bool FN(PW,plain_is_equal)isl_pw_union_pw_aff_plain_is_equal(__isl_keep PWisl_pw_union_pw_aff *pw1, __isl_keep PWisl_pw_union_pw_aff *pw2) |
| 1849 | { |
| 1850 | int i; |
| 1851 | isl_bool equal, has_nan; |
| 1852 | |
| 1853 | if (!pw1 || !pw2) |
| 1854 | return isl_bool_error; |
| 1855 | |
| 1856 | has_nan = FN(PW,involves_nan)isl_pw_union_pw_aff_involves_nan(pw1); |
| 1857 | if (has_nan >= 0 && !has_nan) |
| 1858 | has_nan = FN(PW,involves_nan)isl_pw_union_pw_aff_involves_nan(pw2); |
| 1859 | if (has_nan < 0 || has_nan) |
| 1860 | return isl_bool_not(has_nan); |
| 1861 | |
| 1862 | if (pw1 == pw2) |
| 1863 | return isl_bool_true; |
| 1864 | equal = FN(PW,has_equal_space)isl_pw_union_pw_aff_has_equal_space(pw1, pw2); |
| 1865 | if (equal < 0 || !equal) |
| 1866 | return equal; |
| 1867 | |
| 1868 | pw1 = FN(PW,copy)isl_pw_union_pw_aff_copy(pw1); |
| 1869 | pw2 = FN(PW,copy)isl_pw_union_pw_aff_copy(pw2); |
| 1870 | pw1 = FN(PW,normalize)isl_pw_union_pw_aff_normalize(pw1); |
| 1871 | pw2 = FN(PW,normalize)isl_pw_union_pw_aff_normalize(pw2); |
| 1872 | if (!pw1 || !pw2) |
| 1873 | goto error; |
| 1874 | |
| 1875 | equal = isl_bool_ok(pw1->n == pw2->n); |
| 1876 | for (i = 0; equal && i < pw1->n; ++i) { |
| 1877 | equal = isl_set_plain_is_equal(pw1->p[i].set, pw2->p[i].set); |
| 1878 | if (equal < 0) |
| 1879 | goto error; |
| 1880 | if (!equal) |
| 1881 | break; |
| 1882 | equal = FN(EL,plain_is_equal)isl_union_pw_aff_plain_is_equal(pw1->p[i].FIELDmaff, pw2->p[i].FIELDmaff); |
| 1883 | if (equal < 0) |
| 1884 | goto error; |
| 1885 | } |
| 1886 | |
| 1887 | FN(PW,free)isl_pw_union_pw_aff_free(pw1); |
| 1888 | FN(PW,free)isl_pw_union_pw_aff_free(pw2); |
| 1889 | return equal; |
| 1890 | error: |
| 1891 | FN(PW,free)isl_pw_union_pw_aff_free(pw1); |
| 1892 | FN(PW,free)isl_pw_union_pw_aff_free(pw2); |
| 1893 | return isl_bool_error; |
| 1894 | } |
| 1895 | |
| 1896 | /* Does "pw" involve any NaNs? |
| 1897 | */ |
| 1898 | isl_bool FN(PW,involves_nan)isl_pw_union_pw_aff_involves_nan(__isl_keep PWisl_pw_union_pw_aff *pw) |
| 1899 | { |
| 1900 | int i; |
| 1901 | |
| 1902 | if (!pw) |
| 1903 | return isl_bool_error; |
| 1904 | if (pw->n == 0) |
| 1905 | return isl_bool_false; |
| 1906 | |
| 1907 | for (i = 0; i < pw->n; ++i) { |
| 1908 | isl_bool has_nan = FN(EL,involves_nan)isl_union_pw_aff_involves_nan(pw->p[i].FIELDmaff); |
| 1909 | if (has_nan < 0 || has_nan) |
| 1910 | return has_nan; |
| 1911 | } |
| 1912 | |
| 1913 | return isl_bool_false; |
| 1914 | } |