Bug Summary

File:tools/polly/lib/External/isl/isl_space.c
Warning:line 377, column 2
Value stored to 'dummy' is never read

Annotated Source Code

Press '?' to see keyboard shortcuts

clang -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name isl_space.c -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-eagerly-assume -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -mrelocation-model pic -pic-level 2 -mthread-model posix -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu x86-64 -dwarf-column-info -debugger-tuning=gdb -momit-leaf-frame-pointer -ffunction-sections -fdata-sections -resource-dir /usr/lib/llvm-7/lib/clang/7.0.0 -D _DEBUG -D _GNU_SOURCE -D __STDC_CONSTANT_MACROS -D __STDC_FORMAT_MACROS -D __STDC_LIMIT_MACROS -I /build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/polly/lib/External -I /build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External -I /build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/pet/include -I /build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/ppcg/include -I /build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/ppcg/imath -I /build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/polly/lib/External/ppcg -I /build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl -I /build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/include -I /build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/imath -I /build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/polly/lib/External/isl -I /build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/polly/include -I /usr/include/jsoncpp -I /build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/polly/lib/External/isl/include -I /build/llvm-toolchain-snapshot-7~svn329677/tools/polly/include -I /build/llvm-toolchain-snapshot-7~svn329677/build-llvm/include -I /build/llvm-toolchain-snapshot-7~svn329677/include -U NDEBUG -internal-isystem /usr/local/include -internal-isystem /usr/lib/llvm-7/lib/clang/7.0.0/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -O2 -Wno-unused-parameter -Wwrite-strings -Wno-missing-field-initializers -Wno-long-long -Wno-comment -std=gnu99 -fconst-strings -fdebug-compilation-dir /build/llvm-toolchain-snapshot-7~svn329677/build-llvm/tools/polly/lib/External -fdebug-prefix-map=/build/llvm-toolchain-snapshot-7~svn329677=. -ferror-limit 19 -fmessage-length 0 -stack-protector 2 -fobjc-runtime=gcc -fdiagnostics-show-option -vectorize-loops -vectorize-slp -analyzer-checker optin.performance.Padding -analyzer-output=html -analyzer-config stable-report-filename=true -o /tmp/scan-build-2018-04-11-031539-24776-1 -x c /build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c
1/*
2 * Copyright 2008-2009 Katholieke Universiteit Leuven
3 * Copyright 2010 INRIA Saclay
4 * Copyright 2013-2014 Ecole Normale Superieure
5 *
6 * Use of this software is governed by the MIT license
7 *
8 * Written by Sven Verdoolaege, K.U.Leuven, Departement
9 * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
10 * and INRIA Saclay - Ile-de-France, Parc Club Orsay Universite,
11 * ZAC des vignes, 4 rue Jacques Monod, 91893 Orsay, France
12 * and Ecole Normale Superieure, 45 rue d’Ulm, 75230 Paris, France
13 */
14
15#include <stdlib.h>
16#include <string.h>
17#include <isl_space_private.h>
18#include <isl_id_private.h>
19#include <isl_reordering.h>
20
21isl_ctx *isl_space_get_ctx(__isl_keep isl_space *dim)
22{
23 return dim ? dim->ctx : NULL((void*)0);
24}
25
26__isl_give isl_space *isl_space_alloc(isl_ctx *ctx,
27 unsigned nparam, unsigned n_in, unsigned n_out)
28{
29 isl_space *dim;
30
31 dim = isl_alloc_type(ctx, struct isl_space)((struct isl_space *)isl_malloc_or_die(ctx, sizeof(struct isl_space
)))
;
32 if (!dim)
33 return NULL((void*)0);
34
35 dim->ctx = ctx;
36 isl_ctx_ref(ctx);
37 dim->ref = 1;
38 dim->nparam = nparam;
39 dim->n_in = n_in;
40 dim->n_out = n_out;
41
42 dim->tuple_id[0] = NULL((void*)0);
43 dim->tuple_id[1] = NULL((void*)0);
44
45 dim->nested[0] = NULL((void*)0);
46 dim->nested[1] = NULL((void*)0);
47
48 dim->n_id = 0;
49 dim->ids = NULL((void*)0);
50
51 return dim;
52}
53
54/* Mark the space as being that of a set, by setting the domain tuple
55 * to isl_id_none.
56 */
57static __isl_give isl_space *mark_as_set(__isl_take isl_space *space)
58{
59 space = isl_space_cow(space);
60 if (!space)
61 return NULL((void*)0);
62 space = isl_space_set_tuple_id(space, isl_dim_in, &isl_id_none);
63 return space;
64}
65
66/* Is the space that of a set?
67 */
68isl_bool isl_space_is_set(__isl_keep isl_space *space)
69{
70 if (!space)
71 return isl_bool_error;
72 if (space->n_in != 0 || space->nested[0])
73 return isl_bool_false;
74 if (space->tuple_id[0] != &isl_id_none)
75 return isl_bool_false;
76 return isl_bool_true;
77}
78
79/* Is the given space that of a map?
80 */
81isl_bool isl_space_is_map(__isl_keep isl_space *space)
82{
83 if (!space)
84 return isl_bool_error;
85 return space->tuple_id[0] != &isl_id_none &&
86 space->tuple_id[1] != &isl_id_none;
87}
88
89__isl_give isl_space *isl_space_set_alloc(isl_ctx *ctx,
90 unsigned nparam, unsigned dim)
91{
92 isl_space *space;
93 space = isl_space_alloc(ctx, nparam, 0, dim);
94 space = mark_as_set(space);
95 return space;
96}
97
98/* Mark the space as being that of a parameter domain, by setting
99 * both tuples to isl_id_none.
100 */
101static __isl_give isl_space *mark_as_params(isl_space *space)
102{
103 if (!space)
104 return NULL((void*)0);
105 space = isl_space_set_tuple_id(space, isl_dim_in, &isl_id_none);
106 space = isl_space_set_tuple_id(space, isl_dim_out, &isl_id_none);
107 return space;
108}
109
110/* Is the space that of a parameter domain?
111 */
112isl_bool isl_space_is_params(__isl_keep isl_space *space)
113{
114 if (!space)
115 return isl_bool_error;
116 if (space->n_in != 0 || space->nested[0] ||
117 space->n_out != 0 || space->nested[1])
118 return isl_bool_false;
119 if (space->tuple_id[0] != &isl_id_none)
120 return isl_bool_false;
121 if (space->tuple_id[1] != &isl_id_none)
122 return isl_bool_false;
123 return isl_bool_true;
124}
125
126/* Create a space for a parameter domain.
127 */
128__isl_give isl_space *isl_space_params_alloc(isl_ctx *ctx, unsigned nparam)
129{
130 isl_space *space;
131 space = isl_space_alloc(ctx, nparam, 0, 0);
132 space = mark_as_params(space);
133 return space;
134}
135
136static unsigned global_pos(__isl_keep isl_space *dim,
137 enum isl_dim_type type, unsigned pos)
138{
139 struct isl_ctx *ctx = dim->ctx;
140
141 switch (type) {
142 case isl_dim_param:
143 isl_assert(ctx, pos < dim->nparam,do { if (pos < dim->nparam) break; do { isl_handle_error
(ctx, isl_error_unknown, "Assertion \"" "pos < dim->nparam"
"\" failed", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 144); return isl_space_dim(dim, isl_dim_all); } while (0); }
while (0)
144 return isl_space_dim(dim, isl_dim_all))do { if (pos < dim->nparam) break; do { isl_handle_error
(ctx, isl_error_unknown, "Assertion \"" "pos < dim->nparam"
"\" failed", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 144); return isl_space_dim(dim, isl_dim_all); } while (0); }
while (0)
;
145 return pos;
146 case isl_dim_in:
147 isl_assert(ctx, pos < dim->n_in,do { if (pos < dim->n_in) break; do { isl_handle_error(
ctx, isl_error_unknown, "Assertion \"" "pos < dim->n_in"
"\" failed", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 148); return isl_space_dim(dim, isl_dim_all); } while (0); }
while (0)
148 return isl_space_dim(dim, isl_dim_all))do { if (pos < dim->n_in) break; do { isl_handle_error(
ctx, isl_error_unknown, "Assertion \"" "pos < dim->n_in"
"\" failed", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 148); return isl_space_dim(dim, isl_dim_all); } while (0); }
while (0)
;
149 return pos + dim->nparam;
150 case isl_dim_out:
151 isl_assert(ctx, pos < dim->n_out,do { if (pos < dim->n_out) break; do { isl_handle_error
(ctx, isl_error_unknown, "Assertion \"" "pos < dim->n_out"
"\" failed", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 152); return isl_space_dim(dim, isl_dim_all); } while (0); }
while (0)
152 return isl_space_dim(dim, isl_dim_all))do { if (pos < dim->n_out) break; do { isl_handle_error
(ctx, isl_error_unknown, "Assertion \"" "pos < dim->n_out"
"\" failed", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 152); return isl_space_dim(dim, isl_dim_all); } while (0); }
while (0)
;
153 return pos + dim->nparam + dim->n_in;
154 default:
155 isl_assert(ctx, 0, return isl_space_dim(dim, isl_dim_all))do { if (0) break; do { isl_handle_error(ctx, isl_error_unknown
, "Assertion \"" "0" "\" failed", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 155); return isl_space_dim(dim, isl_dim_all); } while (0); }
while (0)
;
156 }
157 return isl_space_dim(dim, isl_dim_all);
158}
159
160/* Extend length of ids array to the total number of dimensions.
161 */
162static __isl_give isl_space *extend_ids(__isl_take isl_space *dim)
163{
164 isl_id **ids;
165 int i;
166
167 if (isl_space_dim(dim, isl_dim_all) <= dim->n_id)
168 return dim;
169
170 if (!dim->ids) {
171 dim->ids = isl_calloc_array(dim->ctx,((isl_id * *)isl_calloc_or_die(dim->ctx, isl_space_dim(dim
, isl_dim_all), sizeof(isl_id *)))
172 isl_id *, isl_space_dim(dim, isl_dim_all))((isl_id * *)isl_calloc_or_die(dim->ctx, isl_space_dim(dim
, isl_dim_all), sizeof(isl_id *)))
;
173 if (!dim->ids)
174 goto error;
175 } else {
176 ids = isl_realloc_array(dim->ctx, dim->ids,((isl_id * *)isl_realloc_or_die(dim->ctx, dim->ids, (isl_space_dim
(dim, isl_dim_all))*sizeof(isl_id *)))
177 isl_id *, isl_space_dim(dim, isl_dim_all))((isl_id * *)isl_realloc_or_die(dim->ctx, dim->ids, (isl_space_dim
(dim, isl_dim_all))*sizeof(isl_id *)))
;
178 if (!ids)
179 goto error;
180 dim->ids = ids;
181 for (i = dim->n_id; i < isl_space_dim(dim, isl_dim_all); ++i)
182 dim->ids[i] = NULL((void*)0);
183 }
184
185 dim->n_id = isl_space_dim(dim, isl_dim_all);
186
187 return dim;
188error:
189 isl_space_free(dim);
190 return NULL((void*)0);
191}
192
193static __isl_give isl_space *set_id(__isl_take isl_space *dim,
194 enum isl_dim_type type, unsigned pos, __isl_take isl_id *id)
195{
196 dim = isl_space_cow(dim);
197
198 if (!dim)
199 goto error;
200
201 pos = global_pos(dim, type, pos);
202 if (pos == isl_space_dim(dim, isl_dim_all))
203 goto error;
204
205 if (pos >= dim->n_id) {
206 if (!id)
207 return dim;
208 dim = extend_ids(dim);
209 if (!dim)
210 goto error;
211 }
212
213 dim->ids[pos] = id;
214
215 return dim;
216error:
217 isl_id_free(id);
218 isl_space_free(dim);
219 return NULL((void*)0);
220}
221
222static __isl_keep isl_id *get_id(__isl_keep isl_space *dim,
223 enum isl_dim_type type, unsigned pos)
224{
225 if (!dim)
226 return NULL((void*)0);
227
228 pos = global_pos(dim, type, pos);
229 if (pos == isl_space_dim(dim, isl_dim_all))
230 return NULL((void*)0);
231 if (pos >= dim->n_id)
232 return NULL((void*)0);
233 return dim->ids[pos];
234}
235
236static unsigned offset(__isl_keep isl_space *dim, enum isl_dim_type type)
237{
238 switch (type) {
239 case isl_dim_param: return 0;
240 case isl_dim_in: return dim->nparam;
241 case isl_dim_out: return dim->nparam + dim->n_in;
242 default: return 0;
243 }
244}
245
246static unsigned n(__isl_keep isl_space *dim, enum isl_dim_type type)
247{
248 switch (type) {
249 case isl_dim_param: return dim->nparam;
250 case isl_dim_in: return dim->n_in;
251 case isl_dim_out: return dim->n_out;
252 case isl_dim_all: return dim->nparam + dim->n_in + dim->n_out;
253 default: return 0;
254 }
255}
256
257unsigned isl_space_dim(__isl_keep isl_space *dim, enum isl_dim_type type)
258{
259 if (!dim)
260 return 0;
261 return n(dim, type);
262}
263
264unsigned isl_space_offset(__isl_keep isl_space *dim, enum isl_dim_type type)
265{
266 if (!dim)
267 return 0;
268 return offset(dim, type);
269}
270
271static __isl_give isl_space *copy_ids(__isl_take isl_space *dst,
272 enum isl_dim_type dst_type, unsigned offset, __isl_keep isl_space *src,
273 enum isl_dim_type src_type)
274{
275 int i;
276 isl_id *id;
277
278 if (!dst)
279 return NULL((void*)0);
280
281 for (i = 0; i < n(src, src_type); ++i) {
282 id = get_id(src, src_type, i);
283 if (!id)
284 continue;
285 dst = set_id(dst, dst_type, offset + i, isl_id_copy(id));
286 if (!dst)
287 return NULL((void*)0);
288 }
289 return dst;
290}
291
292__isl_take isl_space *isl_space_dup(__isl_keep isl_space *dim)
293{
294 isl_space *dup;
295 if (!dim)
296 return NULL((void*)0);
297 dup = isl_space_alloc(dim->ctx, dim->nparam, dim->n_in, dim->n_out);
298 if (!dup)
299 return NULL((void*)0);
300 if (dim->tuple_id[0] &&
301 !(dup->tuple_id[0] = isl_id_copy(dim->tuple_id[0])))
302 goto error;
303 if (dim->tuple_id[1] &&
304 !(dup->tuple_id[1] = isl_id_copy(dim->tuple_id[1])))
305 goto error;
306 if (dim->nested[0] && !(dup->nested[0] = isl_space_copy(dim->nested[0])))
307 goto error;
308 if (dim->nested[1] && !(dup->nested[1] = isl_space_copy(dim->nested[1])))
309 goto error;
310 if (!dim->ids)
311 return dup;
312 dup = copy_ids(dup, isl_dim_param, 0, dim, isl_dim_param);
313 dup = copy_ids(dup, isl_dim_in, 0, dim, isl_dim_in);
314 dup = copy_ids(dup, isl_dim_out, 0, dim, isl_dim_out);
315 return dup;
316error:
317 isl_space_free(dup);
318 return NULL((void*)0);
319}
320
321__isl_give isl_space *isl_space_cow(__isl_take isl_space *dim)
322{
323 if (!dim)
324 return NULL((void*)0);
325
326 if (dim->ref == 1)
327 return dim;
328 dim->ref--;
329 return isl_space_dup(dim);
330}
331
332__isl_give isl_space *isl_space_copy(__isl_keep isl_space *dim)
333{
334 if (!dim)
335 return NULL((void*)0);
336
337 dim->ref++;
338 return dim;
339}
340
341__isl_null isl_space *isl_space_free(__isl_take isl_space *space)
342{
343 int i;
344
345 if (!space)
346 return NULL((void*)0);
347
348 if (--space->ref > 0)
349 return NULL((void*)0);
350
351 isl_id_free(space->tuple_id[0]);
352 isl_id_free(space->tuple_id[1]);
353
354 isl_space_free(space->nested[0]);
355 isl_space_free(space->nested[1]);
356
357 for (i = 0; i < space->n_id; ++i)
358 isl_id_free(space->ids[i]);
359 free(space->ids);
360 isl_ctx_deref(space->ctx);
361
362 free(space);
363
364 return NULL((void*)0);
365}
366
367/* Check if "s" is a valid dimension or tuple name.
368 * We currently only forbid names that look like a number.
369 *
370 * s is assumed to be non-NULL.
371 */
372static int name_ok(isl_ctx *ctx, const char *s)
373{
374 char *p;
375 long dummy;
376
377 dummy = strtol(s, &p, 0);
Value stored to 'dummy' is never read
378 if (p != s)
379 isl_die(ctx, isl_error_invalid, "name looks like a number",do { isl_handle_error(ctx, isl_error_invalid, "name looks like a number"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 380); return 0; } while (0)
380 return 0)do { isl_handle_error(ctx, isl_error_invalid, "name looks like a number"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 380); return 0; } while (0)
;
381
382 return 1;
383}
384
385/* Is it possible for the given dimension type to have a tuple id?
386 */
387static int space_can_have_id(__isl_keep isl_space *space,
388 enum isl_dim_type type)
389{
390 if (!space)
391 return 0;
392 if (isl_space_is_params(space))
393 isl_die(space->ctx, isl_error_invalid,do { isl_handle_error(space->ctx, isl_error_invalid, "parameter spaces don't have tuple ids"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 394); return 0; } while (0)
394 "parameter spaces don't have tuple ids", return 0)do { isl_handle_error(space->ctx, isl_error_invalid, "parameter spaces don't have tuple ids"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 394); return 0; } while (0)
;
395 if (isl_space_is_set(space) && type != isl_dim_set)
396 isl_die(space->ctx, isl_error_invalid,do { isl_handle_error(space->ctx, isl_error_invalid, "set spaces can only have a set id"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 397); return 0; } while (0)
397 "set spaces can only have a set id", return 0)do { isl_handle_error(space->ctx, isl_error_invalid, "set spaces can only have a set id"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 397); return 0; } while (0)
;
398 if (type != isl_dim_in && type != isl_dim_out)
399 isl_die(space->ctx, isl_error_invalid,do { isl_handle_error(space->ctx, isl_error_invalid, "only input, output and set tuples can have ids"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 401); return 0; } while (0)
400 "only input, output and set tuples can have ids",do { isl_handle_error(space->ctx, isl_error_invalid, "only input, output and set tuples can have ids"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 401); return 0; } while (0)
401 return 0)do { isl_handle_error(space->ctx, isl_error_invalid, "only input, output and set tuples can have ids"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 401); return 0; } while (0)
;
402
403 return 1;
404}
405
406/* Does the tuple have an id?
407 */
408isl_bool isl_space_has_tuple_id(__isl_keep isl_space *dim,
409 enum isl_dim_type type)
410{
411 if (!space_can_have_id(dim, type))
412 return isl_bool_error;
413 return dim->tuple_id[type - isl_dim_in] != NULL((void*)0);
414}
415
416__isl_give isl_id *isl_space_get_tuple_id(__isl_keep isl_space *dim,
417 enum isl_dim_type type)
418{
419 int has_id;
420
421 if (!dim)
422 return NULL((void*)0);
423 has_id = isl_space_has_tuple_id(dim, type);
424 if (has_id < 0)
425 return NULL((void*)0);
426 if (!has_id)
427 isl_die(dim->ctx, isl_error_invalid,do { isl_handle_error(dim->ctx, isl_error_invalid, "tuple has no id"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 428); return ((void*)0); } while (0)
428 "tuple has no id", return NULL)do { isl_handle_error(dim->ctx, isl_error_invalid, "tuple has no id"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 428); return ((void*)0); } while (0)
;
429 return isl_id_copy(dim->tuple_id[type - isl_dim_in]);
430}
431
432__isl_give isl_space *isl_space_set_tuple_id(__isl_take isl_space *dim,
433 enum isl_dim_type type, __isl_take isl_id *id)
434{
435 dim = isl_space_cow(dim);
436 if (!dim || !id)
437 goto error;
438 if (type != isl_dim_in && type != isl_dim_out)
439 isl_die(dim->ctx, isl_error_invalid,do { isl_handle_error(dim->ctx, isl_error_invalid, "only input, output and set tuples can have names"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 441); goto error; } while (0)
440 "only input, output and set tuples can have names",do { isl_handle_error(dim->ctx, isl_error_invalid, "only input, output and set tuples can have names"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 441); goto error; } while (0)
441 goto error)do { isl_handle_error(dim->ctx, isl_error_invalid, "only input, output and set tuples can have names"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 441); goto error; } while (0)
;
442
443 isl_id_free(dim->tuple_id[type - isl_dim_in]);
444 dim->tuple_id[type - isl_dim_in] = id;
445
446 return dim;
447error:
448 isl_id_free(id);
449 isl_space_free(dim);
450 return NULL((void*)0);
451}
452
453__isl_give isl_space *isl_space_reset_tuple_id(__isl_take isl_space *dim,
454 enum isl_dim_type type)
455{
456 dim = isl_space_cow(dim);
457 if (!dim)
458 return NULL((void*)0);
459 if (type != isl_dim_in && type != isl_dim_out)
460 isl_die(dim->ctx, isl_error_invalid,do { isl_handle_error(dim->ctx, isl_error_invalid, "only input, output and set tuples can have names"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 462); goto error; } while (0)
461 "only input, output and set tuples can have names",do { isl_handle_error(dim->ctx, isl_error_invalid, "only input, output and set tuples can have names"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 462); goto error; } while (0)
462 goto error)do { isl_handle_error(dim->ctx, isl_error_invalid, "only input, output and set tuples can have names"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 462); goto error; } while (0)
;
463
464 isl_id_free(dim->tuple_id[type - isl_dim_in]);
465 dim->tuple_id[type - isl_dim_in] = NULL((void*)0);
466
467 return dim;
468error:
469 isl_space_free(dim);
470 return NULL((void*)0);
471}
472
473/* Set the id of the given dimension of "space" to "id".
474 * If the dimension already has an id, then it is replaced.
475 * If the dimension is a parameter, then we need to change it
476 * in the nested spaces (if any) as well.
477 */
478__isl_give isl_space *isl_space_set_dim_id(__isl_take isl_space *space,
479 enum isl_dim_type type, unsigned pos, __isl_take isl_id *id)
480{
481 space = isl_space_cow(space);
482 if (!space || !id)
483 goto error;
484
485 if (type == isl_dim_param) {
486 int i;
487
488 for (i = 0; i < 2; ++i) {
489 if (!space->nested[i])
490 continue;
491 space->nested[i] =
492 isl_space_set_dim_id(space->nested[i],
493 type, pos, isl_id_copy(id));
494 if (!space->nested[i])
495 goto error;
496 }
497 }
498
499 isl_id_free(get_id(space, type, pos));
500 return set_id(space, type, pos, id);
501error:
502 isl_id_free(id);
503 isl_space_free(space);
504 return NULL((void*)0);
505}
506
507/* Reset the id of the given dimension of "space".
508 * If the dimension already has an id, then it is removed.
509 * If the dimension is a parameter, then we need to reset it
510 * in the nested spaces (if any) as well.
511 */
512__isl_give isl_space *isl_space_reset_dim_id(__isl_take isl_space *space,
513 enum isl_dim_type type, unsigned pos)
514{
515 space = isl_space_cow(space);
516 if (!space)
517 goto error;
518
519 if (type == isl_dim_param) {
520 int i;
521
522 for (i = 0; i < 2; ++i) {
523 if (!space->nested[i])
524 continue;
525 space->nested[i] =
526 isl_space_reset_dim_id(space->nested[i],
527 type, pos);
528 if (!space->nested[i])
529 goto error;
530 }
531 }
532
533 isl_id_free(get_id(space, type, pos));
534 return set_id(space, type, pos, NULL((void*)0));
535error:
536 isl_space_free(space);
537 return NULL((void*)0);
538}
539
540isl_bool isl_space_has_dim_id(__isl_keep isl_space *dim,
541 enum isl_dim_type type, unsigned pos)
542{
543 if (!dim)
544 return isl_bool_error;
545 return get_id(dim, type, pos) != NULL((void*)0);
546}
547
548__isl_give isl_id *isl_space_get_dim_id(__isl_keep isl_space *dim,
549 enum isl_dim_type type, unsigned pos)
550{
551 if (!dim)
552 return NULL((void*)0);
553 if (!get_id(dim, type, pos))
554 isl_die(dim->ctx, isl_error_invalid,do { isl_handle_error(dim->ctx, isl_error_invalid, "dim has no id"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 555); return ((void*)0); } while (0)
555 "dim has no id", return NULL)do { isl_handle_error(dim->ctx, isl_error_invalid, "dim has no id"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 555); return ((void*)0); } while (0)
;
556 return isl_id_copy(get_id(dim, type, pos));
557}
558
559__isl_give isl_space *isl_space_set_tuple_name(__isl_take isl_space *dim,
560 enum isl_dim_type type, const char *s)
561{
562 isl_id *id;
563
564 if (!dim)
565 return NULL((void*)0);
566
567 if (!s)
568 return isl_space_reset_tuple_id(dim, type);
569
570 if (!name_ok(dim->ctx, s))
571 goto error;
572
573 id = isl_id_alloc(dim->ctx, s, NULL((void*)0));
574 return isl_space_set_tuple_id(dim, type, id);
575error:
576 isl_space_free(dim);
577 return NULL((void*)0);
578}
579
580/* Does the tuple have a name?
581 */
582isl_bool isl_space_has_tuple_name(__isl_keep isl_space *space,
583 enum isl_dim_type type)
584{
585 isl_id *id;
586
587 if (!space_can_have_id(space, type))
588 return isl_bool_error;
589 id = space->tuple_id[type - isl_dim_in];
590 return id && id->name;
591}
592
593__isl_keep const char *isl_space_get_tuple_name(__isl_keep isl_space *dim,
594 enum isl_dim_type type)
595{
596 isl_id *id;
597 if (!dim)
598 return NULL((void*)0);
599 if (type != isl_dim_in && type != isl_dim_out)
600 return NULL((void*)0);
601 id = dim->tuple_id[type - isl_dim_in];
602 return id ? id->name : NULL((void*)0);
603}
604
605__isl_give isl_space *isl_space_set_dim_name(__isl_take isl_space *dim,
606 enum isl_dim_type type, unsigned pos,
607 const char *s)
608{
609 isl_id *id;
610
611 if (!dim)
612 return NULL((void*)0);
613 if (!s)
614 return isl_space_reset_dim_id(dim, type, pos);
615 if (!name_ok(dim->ctx, s))
616 goto error;
617 id = isl_id_alloc(dim->ctx, s, NULL((void*)0));
618 return isl_space_set_dim_id(dim, type, pos, id);
619error:
620 isl_space_free(dim);
621 return NULL((void*)0);
622}
623
624/* Does the given dimension have a name?
625 */
626isl_bool isl_space_has_dim_name(__isl_keep isl_space *space,
627 enum isl_dim_type type, unsigned pos)
628{
629 isl_id *id;
630
631 if (!space)
632 return isl_bool_error;
633 id = get_id(space, type, pos);
634 return id && id->name;
635}
636
637__isl_keep const char *isl_space_get_dim_name(__isl_keep isl_space *dim,
638 enum isl_dim_type type, unsigned pos)
639{
640 isl_id *id = get_id(dim, type, pos);
641 return id ? id->name : NULL((void*)0);
642}
643
644int isl_space_find_dim_by_id(__isl_keep isl_space *dim, enum isl_dim_type type,
645 __isl_keep isl_id *id)
646{
647 int i;
648 int offset;
649 int n;
650
651 if (!dim || !id)
652 return -1;
653
654 offset = isl_space_offset(dim, type);
655 n = isl_space_dim(dim, type);
656 for (i = 0; i < n && offset + i < dim->n_id; ++i)
657 if (dim->ids[offset + i] == id)
658 return i;
659
660 return -1;
661}
662
663int isl_space_find_dim_by_name(__isl_keep isl_space *space,
664 enum isl_dim_type type, const char *name)
665{
666 int i;
667 int offset;
668 int n;
669
670 if (!space || !name)
671 return -1;
672
673 offset = isl_space_offset(space, type);
674 n = isl_space_dim(space, type);
675 for (i = 0; i < n && offset + i < space->n_id; ++i) {
676 isl_id *id = get_id(space, type, i);
677 if (id && id->name && !strcmp(id->name, name))
678 return i;
679 }
680
681 return -1;
682}
683
684/* Reset the user pointer on all identifiers of parameters and tuples
685 * of "space".
686 */
687__isl_give isl_space *isl_space_reset_user(__isl_take isl_space *space)
688{
689 int i;
690 isl_ctx *ctx;
691 isl_id *id;
692 const char *name;
693
694 if (!space)
695 return NULL((void*)0);
696
697 ctx = isl_space_get_ctx(space);
698
699 for (i = 0; i < space->nparam && i < space->n_id; ++i) {
700 if (!isl_id_get_user(space->ids[i]))
701 continue;
702 space = isl_space_cow(space);
703 if (!space)
704 return NULL((void*)0);
705 name = isl_id_get_name(space->ids[i]);
706 id = isl_id_alloc(ctx, name, NULL((void*)0));
707 isl_id_free(space->ids[i]);
708 space->ids[i] = id;
709 if (!id)
710 return isl_space_free(space);
711 }
712
713 for (i = 0; i < 2; ++i) {
714 if (!space->tuple_id[i])
715 continue;
716 if (!isl_id_get_user(space->tuple_id[i]))
717 continue;
718 space = isl_space_cow(space);
719 if (!space)
720 return NULL((void*)0);
721 name = isl_id_get_name(space->tuple_id[i]);
722 id = isl_id_alloc(ctx, name, NULL((void*)0));
723 isl_id_free(space->tuple_id[i]);
724 space->tuple_id[i] = id;
725 if (!id)
726 return isl_space_free(space);
727 }
728
729 for (i = 0; i < 2; ++i) {
730 if (!space->nested[i])
731 continue;
732 space = isl_space_cow(space);
733 if (!space)
734 return NULL((void*)0);
735 space->nested[i] = isl_space_reset_user(space->nested[i]);
736 if (!space->nested[i])
737 return isl_space_free(space);
738 }
739
740 return space;
741}
742
743static __isl_keep isl_id *tuple_id(__isl_keep isl_space *dim,
744 enum isl_dim_type type)
745{
746 if (!dim)
747 return NULL((void*)0);
748 if (type == isl_dim_in)
749 return dim->tuple_id[0];
750 if (type == isl_dim_out)
751 return dim->tuple_id[1];
752 return NULL((void*)0);
753}
754
755static __isl_keep isl_space *nested(__isl_keep isl_space *dim,
756 enum isl_dim_type type)
757{
758 if (!dim)
759 return NULL((void*)0);
760 if (type == isl_dim_in)
761 return dim->nested[0];
762 if (type == isl_dim_out)
763 return dim->nested[1];
764 return NULL((void*)0);
765}
766
767/* Are the two spaces the same, apart from positions and names of parameters?
768 */
769isl_bool isl_space_has_equal_tuples(__isl_keep isl_space *space1,
770 __isl_keep isl_space *space2)
771{
772 if (!space1 || !space2)
773 return isl_bool_error;
774 if (space1 == space2)
775 return isl_bool_true;
776 return isl_space_tuple_is_equal(space1, isl_dim_in,
777 space2, isl_dim_in) &&
778 isl_space_tuple_is_equal(space1, isl_dim_out,
779 space2, isl_dim_out);
780}
781
782/* Check if the tuple of type "type1" of "space1" is the same as
783 * the tuple of type "type2" of "space2".
784 *
785 * That is, check if the tuples have the same identifier, the same dimension
786 * and the same internal structure.
787 * The identifiers of the dimensions inside the tuples do not affect the result.
788 *
789 * Note that this function only checks the tuples themselves.
790 * If nested tuples are involved, then we need to be careful not
791 * to have result affected by possibly differing parameters
792 * in those nested tuples.
793 */
794isl_bool isl_space_tuple_is_equal(__isl_keep isl_space *space1,
795 enum isl_dim_type type1, __isl_keep isl_space *space2,
796 enum isl_dim_type type2)
797{
798 isl_id *id1, *id2;
799 isl_space *nested1, *nested2;
800
801 if (!space1 || !space2)
802 return isl_bool_error;
803
804 if (space1 == space2 && type1 == type2)
805 return isl_bool_true;
806
807 if (n(space1, type1) != n(space2, type2))
808 return isl_bool_false;
809 id1 = tuple_id(space1, type1);
810 id2 = tuple_id(space2, type2);
811 if (!id1 ^ !id2)
812 return isl_bool_false;
813 if (id1 && id1 != id2)
814 return isl_bool_false;
815 nested1 = nested(space1, type1);
816 nested2 = nested(space2, type2);
817 if (!nested1 ^ !nested2)
818 return isl_bool_false;
819 if (nested1 && !isl_space_has_equal_tuples(nested1, nested2))
820 return isl_bool_false;
821 return isl_bool_true;
822}
823
824static isl_bool match(__isl_keep isl_space *space1, enum isl_dim_type type1,
825 __isl_keep isl_space *space2, enum isl_dim_type type2)
826{
827 int i;
828
829 if (space1 == space2 && type1 == type2)
830 return isl_bool_true;
831
832 if (!isl_space_tuple_is_equal(space1, type1, space2, type2))
833 return isl_bool_false;
834
835 if (!space1->ids && !space2->ids)
836 return isl_bool_true;
837
838 for (i = 0; i < n(space1, type1); ++i) {
839 if (get_id(space1, type1, i) != get_id(space2, type2, i))
840 return isl_bool_false;
841 }
842 return isl_bool_true;
843}
844
845/* Do "space1" and "space2" have the same parameters?
846 */
847isl_bool isl_space_has_equal_params(__isl_keep isl_space *space1,
848 __isl_keep isl_space *space2)
849{
850 if (!space1 || !space2)
851 return isl_bool_error;
852
853 return match(space1, isl_dim_param, space2, isl_dim_param);
854}
855
856/* Do "space1" and "space2" have the same identifiers for all
857 * the tuple variables?
858 */
859isl_bool isl_space_has_equal_ids(__isl_keep isl_space *space1,
860 __isl_keep isl_space *space2)
861{
862 isl_bool equal;
863
864 if (!space1 || !space2)
865 return isl_bool_error;
866
867 equal = match(space1, isl_dim_in, space2, isl_dim_in);
868 if (equal < 0 || !equal)
869 return equal;
870 return match(space1, isl_dim_out, space2, isl_dim_out);
871}
872
873isl_bool isl_space_match(__isl_keep isl_space *space1, enum isl_dim_type type1,
874 __isl_keep isl_space *space2, enum isl_dim_type type2)
875{
876 if (!space1 || !space2)
877 return isl_bool_error;
878
879 return match(space1, type1, space2, type2);
880}
881
882static void get_ids(__isl_keep isl_space *dim, enum isl_dim_type type,
883 unsigned first, unsigned n, __isl_keep isl_id **ids)
884{
885 int i;
886
887 for (i = 0; i < n ; ++i)
888 ids[i] = get_id(dim, type, first + i);
889}
890
891static __isl_give isl_space *space_extend(__isl_take isl_space *space,
892 unsigned nparam, unsigned n_in, unsigned n_out)
893{
894 isl_id **ids = NULL((void*)0);
895
896 if (!space)
897 return NULL((void*)0);
898 if (space->nparam == nparam &&
899 space->n_in == n_in && space->n_out == n_out)
900 return space;
901
902 isl_assert(space->ctx, space->nparam <= nparam, goto error)do { if (space->nparam <= nparam) break; do { isl_handle_error
(space->ctx, isl_error_unknown, "Assertion \"" "space->nparam <= nparam"
"\" failed", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 902); goto error; } while (0); } while (0)
;
903 isl_assert(space->ctx, space->n_in <= n_in, goto error)do { if (space->n_in <= n_in) break; do { isl_handle_error
(space->ctx, isl_error_unknown, "Assertion \"" "space->n_in <= n_in"
"\" failed", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 903); goto error; } while (0); } while (0)
;
904 isl_assert(space->ctx, space->n_out <= n_out, goto error)do { if (space->n_out <= n_out) break; do { isl_handle_error
(space->ctx, isl_error_unknown, "Assertion \"" "space->n_out <= n_out"
"\" failed", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 904); goto error; } while (0); } while (0)
;
905
906 space = isl_space_cow(space);
907 if (!space)
908 goto error;
909
910 if (space->ids) {
911 unsigned n;
912 n = nparam + n_in + n_out;
913 if (n < nparam || n < n_in || n < n_out)
914 isl_die(isl_space_get_ctx(space), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "overflow in total number of dimensions", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 916); goto error; } while (0)
915 "overflow in total number of dimensions",do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "overflow in total number of dimensions", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 916); goto error; } while (0)
916 goto error)do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "overflow in total number of dimensions", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 916); goto error; } while (0)
;
917 ids = isl_calloc_array(space->ctx, isl_id *, n)((isl_id * *)isl_calloc_or_die(space->ctx, n, sizeof(isl_id
*)))
;
918 if (!ids)
919 goto error;
920 get_ids(space, isl_dim_param, 0, space->nparam, ids);
921 get_ids(space, isl_dim_in, 0, space->n_in, ids + nparam);
922 get_ids(space, isl_dim_out, 0, space->n_out,
923 ids + nparam + n_in);
924 free(space->ids);
925 space->ids = ids;
926 space->n_id = nparam + n_in + n_out;
927 }
928 space->nparam = nparam;
929 space->n_in = n_in;
930 space->n_out = n_out;
931
932 return space;
933error:
934 free(ids);
935 isl_space_free(space);
936 return NULL((void*)0);
937}
938
939__isl_give isl_space *isl_space_extend(__isl_take isl_space *space,
940 unsigned nparam, unsigned n_in, unsigned n_out)
941{
942 return space_extend(space, nparam, n_in, n_out);
943}
944
945__isl_give isl_space *isl_space_add_dims(__isl_take isl_space *space,
946 enum isl_dim_type type, unsigned n)
947{
948 space = isl_space_reset(space, type);
949 if (!space)
950 return NULL((void*)0);
951 switch (type) {
952 case isl_dim_param:
953 space = space_extend(space,
954 space->nparam + n, space->n_in, space->n_out);
955 if (space && space->nested[0] &&
956 !(space->nested[0] = isl_space_add_dims(space->nested[0],
957 isl_dim_param, n)))
958 goto error;
959 if (space && space->nested[1] &&
960 !(space->nested[1] = isl_space_add_dims(space->nested[1],
961 isl_dim_param, n)))
962 goto error;
963 return space;
964 case isl_dim_in:
965 return space_extend(space,
966 space->nparam, space->n_in + n, space->n_out);
967 case isl_dim_out:
968 return space_extend(space,
969 space->nparam, space->n_in, space->n_out + n);
970 default:
971 isl_die(space->ctx, isl_error_invalid,do { isl_handle_error(space->ctx, isl_error_invalid, "cannot add dimensions of specified type"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 972); goto error; } while (0)
972 "cannot add dimensions of specified type", goto error)do { isl_handle_error(space->ctx, isl_error_invalid, "cannot add dimensions of specified type"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 972); goto error; } while (0)
;
973 }
974error:
975 isl_space_free(space);
976 return NULL((void*)0);
977}
978
979/* Add a parameter with identifier "id" to "space", provided
980 * it does not already appear in "space".
981 */
982__isl_give isl_space *isl_space_add_param_id(__isl_take isl_space *space,
983 __isl_take isl_id *id)
984{
985 int pos;
986
987 if (!space || !id)
988 goto error;
989
990 if (isl_space_find_dim_by_id(space, isl_dim_param, id) >= 0) {
991 isl_id_free(id);
992 return space;
993 }
994
995 pos = isl_space_dim(space, isl_dim_param);
996 space = isl_space_add_dims(space, isl_dim_param, 1);
997 space = isl_space_set_dim_id(space, isl_dim_param, pos, id);
998
999 return space;
1000error:
1001 isl_space_free(space);
1002 isl_id_free(id);
1003 return NULL((void*)0);
1004}
1005
1006static int valid_dim_type(enum isl_dim_type type)
1007{
1008 switch (type) {
1009 case isl_dim_param:
1010 case isl_dim_in:
1011 case isl_dim_out:
1012 return 1;
1013 default:
1014 return 0;
1015 }
1016}
1017
1018/* Insert "n" dimensions of type "type" at position "pos".
1019 * If we are inserting parameters, then they are also inserted in
1020 * any nested spaces.
1021 */
1022__isl_give isl_space *isl_space_insert_dims(__isl_take isl_space *dim,
1023 enum isl_dim_type type, unsigned pos, unsigned n)
1024{
1025 isl_id **ids = NULL((void*)0);
1026
1027 if (!dim)
1028 return NULL((void*)0);
1029 if (n == 0)
1030 return isl_space_reset(dim, type);
1031
1032 if (!valid_dim_type(type))
1033 isl_die(dim->ctx, isl_error_invalid,do { isl_handle_error(dim->ctx, isl_error_invalid, "cannot insert dimensions of specified type"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1035); goto error; } while (0)
1034 "cannot insert dimensions of specified type",do { isl_handle_error(dim->ctx, isl_error_invalid, "cannot insert dimensions of specified type"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1035); goto error; } while (0)
1035 goto error)do { isl_handle_error(dim->ctx, isl_error_invalid, "cannot insert dimensions of specified type"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1035); goto error; } while (0)
;
1036
1037 isl_assert(dim->ctx, pos <= isl_space_dim(dim, type), goto error)do { if (pos <= isl_space_dim(dim, type)) break; do { isl_handle_error
(dim->ctx, isl_error_unknown, "Assertion \"" "pos <= isl_space_dim(dim, type)"
"\" failed", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1037); goto error; } while (0); } while (0)
;
1038
1039 dim = isl_space_cow(dim);
1040 if (!dim)
1041 return NULL((void*)0);
1042
1043 if (dim->ids) {
1044 enum isl_dim_type t, o = isl_dim_param;
1045 int off;
1046 int s[3];
1047 ids = isl_calloc_array(dim->ctx, isl_id *,((isl_id * *)isl_calloc_or_die(dim->ctx, dim->nparam + dim
->n_in + dim->n_out + n, sizeof(isl_id *)))
1048 dim->nparam + dim->n_in + dim->n_out + n)((isl_id * *)isl_calloc_or_die(dim->ctx, dim->nparam + dim
->n_in + dim->n_out + n, sizeof(isl_id *)))
;
1049 if (!ids)
1050 goto error;
1051 off = 0;
1052 s[isl_dim_param - o] = dim->nparam;
1053 s[isl_dim_in - o] = dim->n_in;
1054 s[isl_dim_out - o] = dim->n_out;
1055 for (t = isl_dim_param; t <= isl_dim_out; ++t) {
1056 if (t != type) {
1057 get_ids(dim, t, 0, s[t - o], ids + off);
1058 off += s[t - o];
1059 } else {
1060 get_ids(dim, t, 0, pos, ids + off);
1061 off += pos + n;
1062 get_ids(dim, t, pos, s[t - o] - pos, ids + off);
1063 off += s[t - o] - pos;
1064 }
1065 }
1066 free(dim->ids);
1067 dim->ids = ids;
1068 dim->n_id = dim->nparam + dim->n_in + dim->n_out + n;
1069 }
1070 switch (type) {
1071 case isl_dim_param: dim->nparam += n; break;
1072 case isl_dim_in: dim->n_in += n; break;
1073 case isl_dim_out: dim->n_out += n; break;
1074 default: ;
1075 }
1076 dim = isl_space_reset(dim, type);
1077
1078 if (type == isl_dim_param) {
1079 if (dim && dim->nested[0] &&
1080 !(dim->nested[0] = isl_space_insert_dims(dim->nested[0],
1081 isl_dim_param, pos, n)))
1082 goto error;
1083 if (dim && dim->nested[1] &&
1084 !(dim->nested[1] = isl_space_insert_dims(dim->nested[1],
1085 isl_dim_param, pos, n)))
1086 goto error;
1087 }
1088
1089 return dim;
1090error:
1091 isl_space_free(dim);
1092 return NULL((void*)0);
1093}
1094
1095__isl_give isl_space *isl_space_move_dims(__isl_take isl_space *space,
1096 enum isl_dim_type dst_type, unsigned dst_pos,
1097 enum isl_dim_type src_type, unsigned src_pos, unsigned n)
1098{
1099 int i;
1100
1101 space = isl_space_reset(space, src_type);
1102 space = isl_space_reset(space, dst_type);
1103 if (!space)
1104 return NULL((void*)0);
1105 if (n == 0)
1106 return space;
1107
1108 isl_assert(space->ctx, src_pos + n <= isl_space_dim(space, src_type),do { if (src_pos + n <= isl_space_dim(space, src_type)) break
; do { isl_handle_error(space->ctx, isl_error_unknown, "Assertion \""
"src_pos + n <= isl_space_dim(space, src_type)" "\" failed"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1109); goto error; } while (0); } while (0)
1109 goto error)do { if (src_pos + n <= isl_space_dim(space, src_type)) break
; do { isl_handle_error(space->ctx, isl_error_unknown, "Assertion \""
"src_pos + n <= isl_space_dim(space, src_type)" "\" failed"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1109); goto error; } while (0); } while (0)
;
1110
1111 if (dst_type == src_type && dst_pos == src_pos)
1112 return space;
1113
1114 isl_assert(space->ctx, dst_type != src_type, goto error)do { if (dst_type != src_type) break; do { isl_handle_error(space
->ctx, isl_error_unknown, "Assertion \"" "dst_type != src_type"
"\" failed", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1114); goto error; } while (0); } while (0)
;
1115
1116 space = isl_space_cow(space);
1117 if (!space)
1118 return NULL((void*)0);
1119
1120 if (space->ids) {
1121 isl_id **ids;
1122 enum isl_dim_type t, o = isl_dim_param;
1123 int off;
1124 int s[3];
1125 ids = isl_calloc_array(space->ctx, isl_id *,((isl_id * *)isl_calloc_or_die(space->ctx, space->nparam
+ space->n_in + space->n_out, sizeof(isl_id *)))
1126 space->nparam + space->n_in + space->n_out)((isl_id * *)isl_calloc_or_die(space->ctx, space->nparam
+ space->n_in + space->n_out, sizeof(isl_id *)))
;
1127 if (!ids)
1128 goto error;
1129 off = 0;
1130 s[isl_dim_param - o] = space->nparam;
1131 s[isl_dim_in - o] = space->n_in;
1132 s[isl_dim_out - o] = space->n_out;
1133 for (t = isl_dim_param; t <= isl_dim_out; ++t) {
1134 if (t == dst_type) {
1135 get_ids(space, t, 0, dst_pos, ids + off);
1136 off += dst_pos;
1137 get_ids(space, src_type, src_pos, n, ids + off);
1138 off += n;
1139 get_ids(space, t, dst_pos, s[t - o] - dst_pos,
1140 ids + off);
1141 off += s[t - o] - dst_pos;
1142 } else if (t == src_type) {
1143 get_ids(space, t, 0, src_pos, ids + off);
1144 off += src_pos;
1145 get_ids(space, t, src_pos + n,
1146 s[t - o] - src_pos - n, ids + off);
1147 off += s[t - o] - src_pos - n;
1148 } else {
1149 get_ids(space, t, 0, s[t - o], ids + off);
1150 off += s[t - o];
1151 }
1152 }
1153 free(space->ids);
1154 space->ids = ids;
1155 space->n_id = space->nparam + space->n_in + space->n_out;
1156 }
1157
1158 switch (dst_type) {
1159 case isl_dim_param: space->nparam += n; break;
1160 case isl_dim_in: space->n_in += n; break;
1161 case isl_dim_out: space->n_out += n; break;
1162 default: ;
1163 }
1164
1165 switch (src_type) {
1166 case isl_dim_param: space->nparam -= n; break;
1167 case isl_dim_in: space->n_in -= n; break;
1168 case isl_dim_out: space->n_out -= n; break;
1169 default: ;
1170 }
1171
1172 if (dst_type != isl_dim_param && src_type != isl_dim_param)
1173 return space;
1174
1175 for (i = 0; i < 2; ++i) {
1176 if (!space->nested[i])
1177 continue;
1178 space->nested[i] = isl_space_replace_params(space->nested[i],
1179 space);
1180 if (!space->nested[i])
1181 goto error;
1182 }
1183
1184 return space;
1185error:
1186 isl_space_free(space);
1187 return NULL((void*)0);
1188}
1189
1190/* Check that "space1" and "space2" have the same parameters,
1191 * reporting an error if they do not.
1192 */
1193isl_stat isl_space_check_equal_params(__isl_keep isl_space *space1,
1194 __isl_keep isl_space *space2)
1195{
1196 isl_bool equal;
1197
1198 equal = isl_space_has_equal_params(space1, space2);
1199 if (equal < 0)
1200 return isl_stat_error;
1201 if (!equal)
1202 isl_die(isl_space_get_ctx(space1), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(space1), isl_error_invalid
, "parameters need to match", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1203); return isl_stat_error; } while (0)
1203 "parameters need to match", return isl_stat_error)do { isl_handle_error(isl_space_get_ctx(space1), isl_error_invalid
, "parameters need to match", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1203); return isl_stat_error; } while (0)
;
1204 return isl_stat_ok;
1205}
1206
1207__isl_give isl_space *isl_space_join(__isl_take isl_space *left,
1208 __isl_take isl_space *right)
1209{
1210 isl_space *dim;
1211
1212 if (isl_space_check_equal_params(left, right) < 0)
1213 goto error;
1214
1215 isl_assert(left->ctx,do { if (isl_space_tuple_is_equal(left, isl_dim_out, right, isl_dim_in
)) break; do { isl_handle_error(left->ctx, isl_error_unknown
, "Assertion \"" "isl_space_tuple_is_equal(left, isl_dim_out, right, isl_dim_in)"
"\" failed", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1217); goto error; } while (0); } while (0)
1216 isl_space_tuple_is_equal(left, isl_dim_out, right, isl_dim_in),do { if (isl_space_tuple_is_equal(left, isl_dim_out, right, isl_dim_in
)) break; do { isl_handle_error(left->ctx, isl_error_unknown
, "Assertion \"" "isl_space_tuple_is_equal(left, isl_dim_out, right, isl_dim_in)"
"\" failed", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1217); goto error; } while (0); } while (0)
1217 goto error)do { if (isl_space_tuple_is_equal(left, isl_dim_out, right, isl_dim_in
)) break; do { isl_handle_error(left->ctx, isl_error_unknown
, "Assertion \"" "isl_space_tuple_is_equal(left, isl_dim_out, right, isl_dim_in)"
"\" failed", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1217); goto error; } while (0); } while (0)
;
1218
1219 dim = isl_space_alloc(left->ctx, left->nparam, left->n_in, right->n_out);
1220 if (!dim)
1221 goto error;
1222
1223 dim = copy_ids(dim, isl_dim_param, 0, left, isl_dim_param);
1224 dim = copy_ids(dim, isl_dim_in, 0, left, isl_dim_in);
1225 dim = copy_ids(dim, isl_dim_out, 0, right, isl_dim_out);
1226
1227 if (dim && left->tuple_id[0] &&
1228 !(dim->tuple_id[0] = isl_id_copy(left->tuple_id[0])))
1229 goto error;
1230 if (dim && right->tuple_id[1] &&
1231 !(dim->tuple_id[1] = isl_id_copy(right->tuple_id[1])))
1232 goto error;
1233 if (dim && left->nested[0] &&
1234 !(dim->nested[0] = isl_space_copy(left->nested[0])))
1235 goto error;
1236 if (dim && right->nested[1] &&
1237 !(dim->nested[1] = isl_space_copy(right->nested[1])))
1238 goto error;
1239
1240 isl_space_free(left);
1241 isl_space_free(right);
1242
1243 return dim;
1244error:
1245 isl_space_free(left);
1246 isl_space_free(right);
1247 return NULL((void*)0);
1248}
1249
1250/* Given two map spaces { A -> C } and { B -> D }, construct the space
1251 * { [A -> B] -> [C -> D] }.
1252 * Given two set spaces { A } and { B }, construct the space { [A -> B] }.
1253 */
1254__isl_give isl_space *isl_space_product(__isl_take isl_space *left,
1255 __isl_take isl_space *right)
1256{
1257 isl_space *dom1, *dom2, *nest1, *nest2;
1258 int is_set;
1259
1260 if (!left || !right)
1261 goto error;
1262
1263 is_set = isl_space_is_set(left);
1264 if (is_set != isl_space_is_set(right))
1265 isl_die(isl_space_get_ctx(left), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(left), isl_error_invalid
, "expecting either two set spaces or two map spaces", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1267); goto error; } while (0)
1266 "expecting either two set spaces or two map spaces",do { isl_handle_error(isl_space_get_ctx(left), isl_error_invalid
, "expecting either two set spaces or two map spaces", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1267); goto error; } while (0)
1267 goto error)do { isl_handle_error(isl_space_get_ctx(left), isl_error_invalid
, "expecting either two set spaces or two map spaces", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1267); goto error; } while (0)
;
1268 if (is_set)
1269 return isl_space_range_product(left, right);
1270
1271 if (isl_space_check_equal_params(left, right) < 0)
1272 goto error;
1273
1274 dom1 = isl_space_domain(isl_space_copy(left));
1275 dom2 = isl_space_domain(isl_space_copy(right));
1276 nest1 = isl_space_wrap(isl_space_join(isl_space_reverse(dom1), dom2));
1277
1278 dom1 = isl_space_range(left);
1279 dom2 = isl_space_range(right);
1280 nest2 = isl_space_wrap(isl_space_join(isl_space_reverse(dom1), dom2));
1281
1282 return isl_space_join(isl_space_reverse(nest1), nest2);
1283error:
1284 isl_space_free(left);
1285 isl_space_free(right);
1286 return NULL((void*)0);
1287}
1288
1289/* Given two spaces { A -> C } and { B -> C }, construct the space
1290 * { [A -> B] -> C }
1291 */
1292__isl_give isl_space *isl_space_domain_product(__isl_take isl_space *left,
1293 __isl_take isl_space *right)
1294{
1295 isl_space *ran, *dom1, *dom2, *nest;
1296
1297 if (isl_space_check_equal_params(left, right) < 0)
1298 goto error;
1299
1300 if (!isl_space_tuple_is_equal(left, isl_dim_out, right, isl_dim_out))
1301 isl_die(left->ctx, isl_error_invalid,do { isl_handle_error(left->ctx, isl_error_invalid, "ranges need to match"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1302); goto error; } while (0)
1302 "ranges need to match", goto error)do { isl_handle_error(left->ctx, isl_error_invalid, "ranges need to match"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1302); goto error; } while (0)
;
1303
1304 ran = isl_space_range(isl_space_copy(left));
1305
1306 dom1 = isl_space_domain(left);
1307 dom2 = isl_space_domain(right);
1308 nest = isl_space_wrap(isl_space_join(isl_space_reverse(dom1), dom2));
1309
1310 return isl_space_join(isl_space_reverse(nest), ran);
1311error:
1312 isl_space_free(left);
1313 isl_space_free(right);
1314 return NULL((void*)0);
1315}
1316
1317__isl_give isl_space *isl_space_range_product(__isl_take isl_space *left,
1318 __isl_take isl_space *right)
1319{
1320 isl_space *dom, *ran1, *ran2, *nest;
1321
1322 if (isl_space_check_equal_params(left, right) < 0)
1323 goto error;
1324
1325 if (!isl_space_tuple_is_equal(left, isl_dim_in, right, isl_dim_in))
1326 isl_die(left->ctx, isl_error_invalid,do { isl_handle_error(left->ctx, isl_error_invalid, "domains need to match"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1327); goto error; } while (0)
1327 "domains need to match", goto error)do { isl_handle_error(left->ctx, isl_error_invalid, "domains need to match"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1327); goto error; } while (0)
;
1328
1329 dom = isl_space_domain(isl_space_copy(left));
1330
1331 ran1 = isl_space_range(left);
1332 ran2 = isl_space_range(right);
1333 nest = isl_space_wrap(isl_space_join(isl_space_reverse(ran1), ran2));
1334
1335 return isl_space_join(isl_space_reverse(dom), nest);
1336error:
1337 isl_space_free(left);
1338 isl_space_free(right);
1339 return NULL((void*)0);
1340}
1341
1342/* Given a space of the form [A -> B] -> C, return the space A -> C.
1343 */
1344__isl_give isl_space *isl_space_domain_factor_domain(
1345 __isl_take isl_space *space)
1346{
1347 isl_space *nested;
1348 isl_space *domain;
1349
1350 if (!space)
1351 return NULL((void*)0);
1352 if (!isl_space_domain_is_wrapping(space))
1353 isl_die(isl_space_get_ctx(space), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "domain not a product", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1354); return isl_space_free(space); } while (0)
1354 "domain not a product", return isl_space_free(space))do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "domain not a product", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1354); return isl_space_free(space); } while (0)
;
1355
1356 nested = space->nested[0];
1357 domain = isl_space_copy(space);
1358 domain = isl_space_drop_dims(domain, isl_dim_in,
1359 nested->n_in, nested->n_out);
1360 if (!domain)
1361 return isl_space_free(space);
1362 if (nested->tuple_id[0]) {
1363 domain->tuple_id[0] = isl_id_copy(nested->tuple_id[0]);
1364 if (!domain->tuple_id[0])
1365 goto error;
1366 }
1367 if (nested->nested[0]) {
1368 domain->nested[0] = isl_space_copy(nested->nested[0]);
1369 if (!domain->nested[0])
1370 goto error;
1371 }
1372
1373 isl_space_free(space);
1374 return domain;
1375error:
1376 isl_space_free(space);
1377 isl_space_free(domain);
1378 return NULL((void*)0);
1379}
1380
1381/* Given a space of the form [A -> B] -> C, return the space B -> C.
1382 */
1383__isl_give isl_space *isl_space_domain_factor_range(
1384 __isl_take isl_space *space)
1385{
1386 isl_space *nested;
1387 isl_space *range;
1388
1389 if (!space)
1390 return NULL((void*)0);
1391 if (!isl_space_domain_is_wrapping(space))
1392 isl_die(isl_space_get_ctx(space), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "domain not a product", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1393); return isl_space_free(space); } while (0)
1393 "domain not a product", return isl_space_free(space))do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "domain not a product", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1393); return isl_space_free(space); } while (0)
;
1394
1395 nested = space->nested[0];
1396 range = isl_space_copy(space);
1397 range = isl_space_drop_dims(range, isl_dim_in, 0, nested->n_in);
1398 if (!range)
1399 return isl_space_free(space);
1400 if (nested->tuple_id[1]) {
1401 range->tuple_id[0] = isl_id_copy(nested->tuple_id[1]);
1402 if (!range->tuple_id[0])
1403 goto error;
1404 }
1405 if (nested->nested[1]) {
1406 range->nested[0] = isl_space_copy(nested->nested[1]);
1407 if (!range->nested[0])
1408 goto error;
1409 }
1410
1411 isl_space_free(space);
1412 return range;
1413error:
1414 isl_space_free(space);
1415 isl_space_free(range);
1416 return NULL((void*)0);
1417}
1418
1419/* Internal function that selects the domain of the map that is
1420 * embedded in either a set space or the range of a map space.
1421 * In particular, given a space of the form [A -> B], return the space A.
1422 * Given a space of the form A -> [B -> C], return the space A -> B.
1423 */
1424static __isl_give isl_space *range_factor_domain(__isl_take isl_space *space)
1425{
1426 isl_space *nested;
1427 isl_space *domain;
1428
1429 if (!space)
1430 return NULL((void*)0);
1431
1432 nested = space->nested[1];
1433 domain = isl_space_copy(space);
1434 domain = isl_space_drop_dims(domain, isl_dim_out,
1435 nested->n_in, nested->n_out);
1436 if (!domain)
1437 return isl_space_free(space);
1438 if (nested->tuple_id[0]) {
1439 domain->tuple_id[1] = isl_id_copy(nested->tuple_id[0]);
1440 if (!domain->tuple_id[1])
1441 goto error;
1442 }
1443 if (nested->nested[0]) {
1444 domain->nested[1] = isl_space_copy(nested->nested[0]);
1445 if (!domain->nested[1])
1446 goto error;
1447 }
1448
1449 isl_space_free(space);
1450 return domain;
1451error:
1452 isl_space_free(space);
1453 isl_space_free(domain);
1454 return NULL((void*)0);
1455}
1456
1457/* Given a space of the form A -> [B -> C], return the space A -> B.
1458 */
1459__isl_give isl_space *isl_space_range_factor_domain(
1460 __isl_take isl_space *space)
1461{
1462 if (!space)
1463 return NULL((void*)0);
1464 if (!isl_space_range_is_wrapping(space))
1465 isl_die(isl_space_get_ctx(space), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "range not a product", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1466); return isl_space_free(space); } while (0)
1466 "range not a product", return isl_space_free(space))do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "range not a product", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1466); return isl_space_free(space); } while (0)
;
1467
1468 return range_factor_domain(space);
1469}
1470
1471/* Given a space of the form [A -> B], return the space A.
1472 */
1473static __isl_give isl_space *set_factor_domain(__isl_take isl_space *space)
1474{
1475 if (!space)
1476 return NULL((void*)0);
1477 if (!isl_space_is_wrapping(space))
1478 isl_die(isl_space_get_ctx(space), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "not a product", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1479); return isl_space_free(space); } while (0)
1479 "not a product", return isl_space_free(space))do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "not a product", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1479); return isl_space_free(space); } while (0)
;
1480
1481 return range_factor_domain(space);
1482}
1483
1484/* Given a space of the form [A -> B] -> [C -> D], return the space A -> C.
1485 * Given a space of the form [A -> B], return the space A.
1486 */
1487__isl_give isl_space *isl_space_factor_domain(__isl_take isl_space *space)
1488{
1489 if (!space)
1490 return NULL((void*)0);
1491 if (isl_space_is_set(space))
1492 return set_factor_domain(space);
1493 space = isl_space_domain_factor_domain(space);
1494 space = isl_space_range_factor_domain(space);
1495 return space;
1496}
1497
1498/* Internal function that selects the range of the map that is
1499 * embedded in either a set space or the range of a map space.
1500 * In particular, given a space of the form [A -> B], return the space B.
1501 * Given a space of the form A -> [B -> C], return the space A -> C.
1502 */
1503static __isl_give isl_space *range_factor_range(__isl_take isl_space *space)
1504{
1505 isl_space *nested;
1506 isl_space *range;
1507
1508 if (!space)
1509 return NULL((void*)0);
1510
1511 nested = space->nested[1];
1512 range = isl_space_copy(space);
1513 range = isl_space_drop_dims(range, isl_dim_out, 0, nested->n_in);
1514 if (!range)
1515 return isl_space_free(space);
1516 if (nested->tuple_id[1]) {
1517 range->tuple_id[1] = isl_id_copy(nested->tuple_id[1]);
1518 if (!range->tuple_id[1])
1519 goto error;
1520 }
1521 if (nested->nested[1]) {
1522 range->nested[1] = isl_space_copy(nested->nested[1]);
1523 if (!range->nested[1])
1524 goto error;
1525 }
1526
1527 isl_space_free(space);
1528 return range;
1529error:
1530 isl_space_free(space);
1531 isl_space_free(range);
1532 return NULL((void*)0);
1533}
1534
1535/* Given a space of the form A -> [B -> C], return the space A -> C.
1536 */
1537__isl_give isl_space *isl_space_range_factor_range(
1538 __isl_take isl_space *space)
1539{
1540 if (!space)
1541 return NULL((void*)0);
1542 if (!isl_space_range_is_wrapping(space))
1543 isl_die(isl_space_get_ctx(space), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "range not a product", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1544); return isl_space_free(space); } while (0)
1544 "range not a product", return isl_space_free(space))do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "range not a product", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1544); return isl_space_free(space); } while (0)
;
1545
1546 return range_factor_range(space);
1547}
1548
1549/* Given a space of the form [A -> B], return the space B.
1550 */
1551static __isl_give isl_space *set_factor_range(__isl_take isl_space *space)
1552{
1553 if (!space)
1554 return NULL((void*)0);
1555 if (!isl_space_is_wrapping(space))
1556 isl_die(isl_space_get_ctx(space), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "not a product", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1557); return isl_space_free(space); } while (0)
1557 "not a product", return isl_space_free(space))do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "not a product", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1557); return isl_space_free(space); } while (0)
;
1558
1559 return range_factor_range(space);
1560}
1561
1562/* Given a space of the form [A -> B] -> [C -> D], return the space B -> D.
1563 * Given a space of the form [A -> B], return the space B.
1564 */
1565__isl_give isl_space *isl_space_factor_range(__isl_take isl_space *space)
1566{
1567 if (!space)
1568 return NULL((void*)0);
1569 if (isl_space_is_set(space))
1570 return set_factor_range(space);
1571 space = isl_space_domain_factor_range(space);
1572 space = isl_space_range_factor_range(space);
1573 return space;
1574}
1575
1576__isl_give isl_space *isl_space_map_from_set(__isl_take isl_space *space)
1577{
1578 isl_ctx *ctx;
1579 isl_id **ids = NULL((void*)0);
1580 int n_id;
1581
1582 if (!space)
1583 return NULL((void*)0);
1584 ctx = isl_space_get_ctx(space);
1585 if (!isl_space_is_set(space))
1586 isl_die(ctx, isl_error_invalid, "not a set space", goto error)do { isl_handle_error(ctx, isl_error_invalid, "not a set space"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1586); goto error; } while (0)
;
1587 space = isl_space_cow(space);
1588 if (!space)
1589 return NULL((void*)0);
1590 n_id = space->nparam + space->n_out + space->n_out;
1591 if (n_id > 0 && space->ids) {
1592 ids = isl_calloc_array(space->ctx, isl_id *, n_id)((isl_id * *)isl_calloc_or_die(space->ctx, n_id, sizeof(isl_id
*)))
;
1593 if (!ids)
1594 goto error;
1595 get_ids(space, isl_dim_param, 0, space->nparam, ids);
1596 get_ids(space, isl_dim_out, 0, space->n_out,
1597 ids + space->nparam);
1598 }
1599 space->n_in = space->n_out;
1600 if (ids) {
1601 free(space->ids);
1602 space->ids = ids;
1603 space->n_id = n_id;
1604 space = copy_ids(space, isl_dim_out, 0, space, isl_dim_in);
1605 }
1606 isl_id_free(space->tuple_id[0]);
1607 space->tuple_id[0] = isl_id_copy(space->tuple_id[1]);
1608 isl_space_free(space->nested[0]);
1609 space->nested[0] = isl_space_copy(space->nested[1]);
1610 return space;
1611error:
1612 isl_space_free(space);
1613 return NULL((void*)0);
1614}
1615
1616__isl_give isl_space *isl_space_map_from_domain_and_range(
1617 __isl_take isl_space *domain, __isl_take isl_space *range)
1618{
1619 if (!domain || !range)
1620 goto error;
1621 if (!isl_space_is_set(domain))
1622 isl_die(isl_space_get_ctx(domain), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(domain), isl_error_invalid
, "domain is not a set space", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1623); goto error; } while (0)
1623 "domain is not a set space", goto error)do { isl_handle_error(isl_space_get_ctx(domain), isl_error_invalid
, "domain is not a set space", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1623); goto error; } while (0)
;
1624 if (!isl_space_is_set(range))
1625 isl_die(isl_space_get_ctx(range), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(range), isl_error_invalid
, "range is not a set space", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1626); goto error; } while (0)
1626 "range is not a set space", goto error)do { isl_handle_error(isl_space_get_ctx(range), isl_error_invalid
, "range is not a set space", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1626); goto error; } while (0)
;
1627 return isl_space_join(isl_space_reverse(domain), range);
1628error:
1629 isl_space_free(domain);
1630 isl_space_free(range);
1631 return NULL((void*)0);
1632}
1633
1634static __isl_give isl_space *set_ids(__isl_take isl_space *dim,
1635 enum isl_dim_type type,
1636 unsigned first, unsigned n, __isl_take isl_id **ids)
1637{
1638 int i;
1639
1640 for (i = 0; i < n ; ++i)
1641 dim = set_id(dim, type, first + i, ids[i]);
1642
1643 return dim;
1644}
1645
1646__isl_give isl_space *isl_space_reverse(__isl_take isl_space *dim)
1647{
1648 unsigned t;
1649 isl_space *nested;
1650 isl_id **ids = NULL((void*)0);
1651 isl_id *id;
1652
1653 if (!dim)
1654 return NULL((void*)0);
1655 if (match(dim, isl_dim_in, dim, isl_dim_out))
1656 return dim;
1657
1658 dim = isl_space_cow(dim);
1659 if (!dim)
1660 return NULL((void*)0);
1661
1662 id = dim->tuple_id[0];
1663 dim->tuple_id[0] = dim->tuple_id[1];
1664 dim->tuple_id[1] = id;
1665
1666 nested = dim->nested[0];
1667 dim->nested[0] = dim->nested[1];
1668 dim->nested[1] = nested;
1669
1670 if (dim->ids) {
1671 int n_id = dim->n_in + dim->n_out;
1672 ids = isl_alloc_array(dim->ctx, isl_id *, n_id)((isl_id * *)isl_malloc_or_die(dim->ctx, (n_id)*sizeof(isl_id
*)))
;
1673 if (n_id && !ids)
1674 goto error;
1675 get_ids(dim, isl_dim_in, 0, dim->n_in, ids);
1676 get_ids(dim, isl_dim_out, 0, dim->n_out, ids + dim->n_in);
1677 }
1678
1679 t = dim->n_in;
1680 dim->n_in = dim->n_out;
1681 dim->n_out = t;
1682
1683 if (dim->ids) {
1684 dim = set_ids(dim, isl_dim_out, 0, dim->n_out, ids);
1685 dim = set_ids(dim, isl_dim_in, 0, dim->n_in, ids + dim->n_out);
1686 free(ids);
1687 }
1688
1689 return dim;
1690error:
1691 free(ids);
1692 isl_space_free(dim);
1693 return NULL((void*)0);
1694}
1695
1696__isl_give isl_space *isl_space_drop_dims(__isl_take isl_space *dim,
1697 enum isl_dim_type type, unsigned first, unsigned num)
1698{
1699 int i;
1700
1701 if (!dim)
1702 return NULL((void*)0);
1703
1704 if (num == 0)
1705 return isl_space_reset(dim, type);
1706
1707 if (!valid_dim_type(type))
1708 isl_die(dim->ctx, isl_error_invalid,do { isl_handle_error(dim->ctx, isl_error_invalid, "cannot drop dimensions of specified type"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1709); goto error; } while (0)
1709 "cannot drop dimensions of specified type", goto error)do { isl_handle_error(dim->ctx, isl_error_invalid, "cannot drop dimensions of specified type"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1709); goto error; } while (0)
;
1710
1711 if (first + num > n(dim, type) || first + num < first)
1712 isl_die(isl_space_get_ctx(dim), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(dim), isl_error_invalid
, "index out of bounds", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1713); return isl_space_free(dim); } while (0)
1713 "index out of bounds", return isl_space_free(dim))do { isl_handle_error(isl_space_get_ctx(dim), isl_error_invalid
, "index out of bounds", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1713); return isl_space_free(dim); } while (0)
;
1714 dim = isl_space_cow(dim);
1715 if (!dim)
1716 goto error;
1717 if (dim->ids) {
1718 dim = extend_ids(dim);
1719 if (!dim)
1720 goto error;
1721 for (i = 0; i < num; ++i)
1722 isl_id_free(get_id(dim, type, first + i));
1723 for (i = first+num; i < n(dim, type); ++i)
1724 set_id(dim, type, i - num, get_id(dim, type, i));
1725 switch (type) {
1726 case isl_dim_param:
1727 get_ids(dim, isl_dim_in, 0, dim->n_in,
1728 dim->ids + offset(dim, isl_dim_in) - num);
1729 case isl_dim_in:
1730 get_ids(dim, isl_dim_out, 0, dim->n_out,
1731 dim->ids + offset(dim, isl_dim_out) - num);
1732 default:
1733 ;
1734 }
1735 dim->n_id -= num;
1736 }
1737 switch (type) {
1738 case isl_dim_param: dim->nparam -= num; break;
1739 case isl_dim_in: dim->n_in -= num; break;
1740 case isl_dim_out: dim->n_out -= num; break;
1741 default: ;
1742 }
1743 dim = isl_space_reset(dim, type);
1744 if (type == isl_dim_param) {
1745 if (dim && dim->nested[0] &&
1746 !(dim->nested[0] = isl_space_drop_dims(dim->nested[0],
1747 isl_dim_param, first, num)))
1748 goto error;
1749 if (dim && dim->nested[1] &&
1750 !(dim->nested[1] = isl_space_drop_dims(dim->nested[1],
1751 isl_dim_param, first, num)))
1752 goto error;
1753 }
1754 return dim;
1755error:
1756 isl_space_free(dim);
1757 return NULL((void*)0);
1758}
1759
1760__isl_give isl_space *isl_space_drop_inputs(__isl_take isl_space *dim,
1761 unsigned first, unsigned n)
1762{
1763 if (!dim)
1764 return NULL((void*)0);
1765 return isl_space_drop_dims(dim, isl_dim_in, first, n);
1766}
1767
1768__isl_give isl_space *isl_space_drop_outputs(__isl_take isl_space *dim,
1769 unsigned first, unsigned n)
1770{
1771 if (!dim)
1772 return NULL((void*)0);
1773 return isl_space_drop_dims(dim, isl_dim_out, first, n);
1774}
1775
1776__isl_give isl_space *isl_space_domain(__isl_take isl_space *space)
1777{
1778 if (!space)
1779 return NULL((void*)0);
1780 space = isl_space_drop_dims(space, isl_dim_out, 0, space->n_out);
1781 space = isl_space_reverse(space);
1782 space = mark_as_set(space);
1783 return space;
1784}
1785
1786__isl_give isl_space *isl_space_from_domain(__isl_take isl_space *dim)
1787{
1788 if (!dim)
1789 return NULL((void*)0);
1790 if (!isl_space_is_set(dim))
1791 isl_die(isl_space_get_ctx(dim), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(dim), isl_error_invalid
, "not a set space", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1792); goto error; } while (0)
1792 "not a set space", goto error)do { isl_handle_error(isl_space_get_ctx(dim), isl_error_invalid
, "not a set space", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1792); goto error; } while (0)
;
1793 dim = isl_space_reverse(dim);
1794 dim = isl_space_reset(dim, isl_dim_out);
1795 return dim;
1796error:
1797 isl_space_free(dim);
1798 return NULL((void*)0);
1799}
1800
1801__isl_give isl_space *isl_space_range(__isl_take isl_space *space)
1802{
1803 if (!space)
1804 return NULL((void*)0);
1805 space = isl_space_drop_dims(space, isl_dim_in, 0, space->n_in);
1806 space = mark_as_set(space);
1807 return space;
1808}
1809
1810__isl_give isl_space *isl_space_from_range(__isl_take isl_space *dim)
1811{
1812 if (!dim)
1813 return NULL((void*)0);
1814 if (!isl_space_is_set(dim))
1815 isl_die(isl_space_get_ctx(dim), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(dim), isl_error_invalid
, "not a set space", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1816); goto error; } while (0)
1816 "not a set space", goto error)do { isl_handle_error(isl_space_get_ctx(dim), isl_error_invalid
, "not a set space", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1816); goto error; } while (0)
;
1817 return isl_space_reset(dim, isl_dim_in);
1818error:
1819 isl_space_free(dim);
1820 return NULL((void*)0);
1821}
1822
1823/* Given a map space A -> B, return the map space [A -> B] -> A.
1824 */
1825__isl_give isl_space *isl_space_domain_map(__isl_take isl_space *space)
1826{
1827 isl_space *domain;
1828
1829 domain = isl_space_from_range(isl_space_domain(isl_space_copy(space)));
1830 space = isl_space_from_domain(isl_space_wrap(space));
1831 space = isl_space_join(space, domain);
1832
1833 return space;
1834}
1835
1836/* Given a map space A -> B, return the map space [A -> B] -> B.
1837 */
1838__isl_give isl_space *isl_space_range_map(__isl_take isl_space *space)
1839{
1840 isl_space *range;
1841
1842 range = isl_space_from_range(isl_space_range(isl_space_copy(space)));
1843 space = isl_space_from_domain(isl_space_wrap(space));
1844 space = isl_space_join(space, range);
1845
1846 return space;
1847}
1848
1849__isl_give isl_space *isl_space_params(__isl_take isl_space *space)
1850{
1851 if (isl_space_is_params(space))
1852 return space;
1853 space = isl_space_drop_dims(space,
1854 isl_dim_in, 0, isl_space_dim(space, isl_dim_in));
1855 space = isl_space_drop_dims(space,
1856 isl_dim_out, 0, isl_space_dim(space, isl_dim_out));
1857 space = mark_as_params(space);
1858 return space;
1859}
1860
1861__isl_give isl_space *isl_space_set_from_params(__isl_take isl_space *space)
1862{
1863 if (!space)
1864 return NULL((void*)0);
1865 if (!isl_space_is_params(space))
1866 isl_die(isl_space_get_ctx(space), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "not a parameter space", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1867); goto error; } while (0)
1867 "not a parameter space", goto error)do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "not a parameter space", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 1867); goto error; } while (0)
;
1868 return isl_space_reset(space, isl_dim_set);
1869error:
1870 isl_space_free(space);
1871 return NULL((void*)0);
1872}
1873
1874__isl_give isl_space *isl_space_underlying(__isl_take isl_space *dim,
1875 unsigned n_div)
1876{
1877 int i;
1878
1879 if (!dim)
1880 return NULL((void*)0);
1881 if (n_div == 0 &&
1882 dim->nparam == 0 && dim->n_in == 0 && dim->n_id == 0)
1883 return isl_space_reset(isl_space_reset(dim, isl_dim_in), isl_dim_out);
1884 dim = isl_space_cow(dim);
1885 if (!dim)
1886 return NULL((void*)0);
1887 dim->n_out += dim->nparam + dim->n_in + n_div;
1888 dim->nparam = 0;
1889 dim->n_in = 0;
1890
1891 for (i = 0; i < dim->n_id; ++i)
1892 isl_id_free(get_id(dim, isl_dim_out, i));
1893 dim->n_id = 0;
1894 dim = isl_space_reset(dim, isl_dim_in);
1895 dim = isl_space_reset(dim, isl_dim_out);
1896
1897 return dim;
1898}
1899
1900/* Are the two spaces the same, including positions and names of parameters?
1901 */
1902isl_bool isl_space_is_equal(__isl_keep isl_space *space1,
1903 __isl_keep isl_space *space2)
1904{
1905 isl_bool equal;
1906
1907 if (!space1 || !space2)
1908 return isl_bool_error;
1909 if (space1 == space2)
1910 return isl_bool_true;
1911 equal = isl_space_has_equal_params(space1, space2);
1912 if (equal < 0 || !equal)
1913 return equal;
1914 return isl_space_has_equal_tuples(space1, space2);
1915}
1916
1917/* Is space1 equal to the domain of space2?
1918 *
1919 * In the internal version we also allow space2 to be the space of a set,
1920 * provided space1 is a parameter space.
1921 */
1922isl_bool isl_space_is_domain_internal(__isl_keep isl_space *space1,
1923 __isl_keep isl_space *space2)
1924{
1925 isl_bool equal_params;
1926
1927 if (!space1 || !space2)
1928 return isl_bool_error;
1929 if (!isl_space_is_set(space1))
1930 return isl_bool_false;
1931 equal_params = isl_space_has_equal_params(space1, space2);
1932 if (equal_params < 0 || !equal_params)
1933 return equal_params;
1934 return isl_space_tuple_is_equal(space1, isl_dim_set,
1935 space2, isl_dim_in);
1936}
1937
1938/* Is space1 equal to the domain of space2?
1939 */
1940isl_bool isl_space_is_domain(__isl_keep isl_space *space1,
1941 __isl_keep isl_space *space2)
1942{
1943 if (!space2)
1944 return isl_bool_error;
1945 if (!isl_space_is_map(space2))
1946 return isl_bool_false;
1947 return isl_space_is_domain_internal(space1, space2);
1948}
1949
1950/* Is space1 equal to the range of space2?
1951 *
1952 * In the internal version, space2 is allowed to be the space of a set,
1953 * in which case it should be equal to space1.
1954 */
1955isl_bool isl_space_is_range_internal(__isl_keep isl_space *space1,
1956 __isl_keep isl_space *space2)
1957{
1958 isl_bool equal_params;
1959
1960 if (!space1 || !space2)
1961 return isl_bool_error;
1962 if (!isl_space_is_set(space1))
1963 return isl_bool_false;
1964 equal_params = isl_space_has_equal_params(space1, space2);
1965 if (equal_params < 0 || !equal_params)
1966 return equal_params;
1967 return isl_space_tuple_is_equal(space1, isl_dim_set,
1968 space2, isl_dim_out);
1969}
1970
1971/* Is space1 equal to the range of space2?
1972 */
1973isl_bool isl_space_is_range(__isl_keep isl_space *space1,
1974 __isl_keep isl_space *space2)
1975{
1976 if (!space2)
1977 return isl_bool_error;
1978 if (!isl_space_is_map(space2))
1979 return isl_bool_false;
1980 return isl_space_is_range_internal(space1, space2);
1981}
1982
1983/* Update "hash" by hashing in the parameters of "space".
1984 */
1985static uint32_t isl_hash_params(uint32_t hash, __isl_keep isl_space *space)
1986{
1987 int i;
1988 isl_id *id;
1989
1990 if (!space)
1991 return hash;
1992
1993 isl_hash_byte(hash, space->nparam % 256)do { hash *= 16777619; hash ^= space->nparam % 256; } while
(0)
;
1994
1995 for (i = 0; i < space->nparam; ++i) {
1996 id = get_id(space, isl_dim_param, i);
1997 hash = isl_hash_id(hash, id);
1998 }
1999
2000 return hash;
2001}
2002
2003/* Update "hash" by hashing in the tuples of "space".
2004 * Changes in this function should be reflected in isl_hash_tuples_domain.
2005 */
2006static uint32_t isl_hash_tuples(uint32_t hash, __isl_keep isl_space *space)
2007{
2008 isl_id *id;
2009
2010 if (!space)
2011 return hash;
2012
2013 isl_hash_byte(hash, space->n_in % 256)do { hash *= 16777619; hash ^= space->n_in % 256; } while(
0)
;
2014 isl_hash_byte(hash, space->n_out % 256)do { hash *= 16777619; hash ^= space->n_out % 256; } while
(0)
;
2015
2016 id = tuple_id(space, isl_dim_in);
2017 hash = isl_hash_id(hash, id);
2018 id = tuple_id(space, isl_dim_out);
2019 hash = isl_hash_id(hash, id);
2020
2021 hash = isl_hash_tuples(hash, space->nested[0]);
2022 hash = isl_hash_tuples(hash, space->nested[1]);
2023
2024 return hash;
2025}
2026
2027/* Update "hash" by hashing in the domain tuple of "space".
2028 * The result of this function is equal to the result of applying
2029 * isl_hash_tuples to the domain of "space".
2030 */
2031static uint32_t isl_hash_tuples_domain(uint32_t hash,
2032 __isl_keep isl_space *space)
2033{
2034 isl_id *id;
2035
2036 if (!space)
2037 return hash;
2038
2039 isl_hash_byte(hash, 0)do { hash *= 16777619; hash ^= 0; } while(0);
2040 isl_hash_byte(hash, space->n_in % 256)do { hash *= 16777619; hash ^= space->n_in % 256; } while(
0)
;
2041
2042 hash = isl_hash_id(hash, &isl_id_none);
2043 id = tuple_id(space, isl_dim_in);
2044 hash = isl_hash_id(hash, id);
2045
2046 hash = isl_hash_tuples(hash, space->nested[0]);
2047
2048 return hash;
2049}
2050
2051/* Return a hash value that digests the tuples of "space",
2052 * i.e., that ignores the parameters.
2053 */
2054uint32_t isl_space_get_tuple_hash(__isl_keep isl_space *space)
2055{
2056 uint32_t hash;
2057
2058 if (!space)
2059 return 0;
2060
2061 hash = isl_hash_init()(2166136261u);
2062 hash = isl_hash_tuples(hash, space);
2063
2064 return hash;
2065}
2066
2067uint32_t isl_space_get_hash(__isl_keep isl_space *space)
2068{
2069 uint32_t hash;
2070
2071 if (!space)
2072 return 0;
2073
2074 hash = isl_hash_init()(2166136261u);
2075 hash = isl_hash_params(hash, space);
2076 hash = isl_hash_tuples(hash, space);
2077
2078 return hash;
2079}
2080
2081/* Return the hash value of the domain of "space".
2082 * That is, isl_space_get_domain_hash(space) is equal to
2083 * isl_space_get_hash(isl_space_domain(space)).
2084 */
2085uint32_t isl_space_get_domain_hash(__isl_keep isl_space *space)
2086{
2087 uint32_t hash;
2088
2089 if (!space)
2090 return 0;
2091
2092 hash = isl_hash_init()(2166136261u);
2093 hash = isl_hash_params(hash, space);
2094 hash = isl_hash_tuples_domain(hash, space);
2095
2096 return hash;
2097}
2098
2099isl_bool isl_space_is_wrapping(__isl_keep isl_space *dim)
2100{
2101 if (!dim)
2102 return isl_bool_error;
2103
2104 if (!isl_space_is_set(dim))
2105 return isl_bool_false;
2106
2107 return dim->nested[1] != NULL((void*)0);
2108}
2109
2110/* Is "space" the space of a map where the domain is a wrapped map space?
2111 */
2112isl_bool isl_space_domain_is_wrapping(__isl_keep isl_space *space)
2113{
2114 if (!space)
2115 return isl_bool_error;
2116
2117 if (isl_space_is_set(space))
2118 return isl_bool_false;
2119
2120 return space->nested[0] != NULL((void*)0);
2121}
2122
2123/* Is "space" the space of a map where the range is a wrapped map space?
2124 */
2125isl_bool isl_space_range_is_wrapping(__isl_keep isl_space *space)
2126{
2127 if (!space)
2128 return isl_bool_error;
2129
2130 if (isl_space_is_set(space))
2131 return isl_bool_false;
2132
2133 return space->nested[1] != NULL((void*)0);
2134}
2135
2136/* Is "space" a product of two spaces?
2137 * That is, is it a wrapping set space or a map space
2138 * with wrapping domain and range?
2139 */
2140isl_bool isl_space_is_product(__isl_keep isl_space *space)
2141{
2142 isl_bool is_set;
2143 isl_bool is_product;
2144
2145 is_set = isl_space_is_set(space);
2146 if (is_set < 0)
2147 return isl_bool_error;
2148 if (is_set)
2149 return isl_space_is_wrapping(space);
2150 is_product = isl_space_domain_is_wrapping(space);
2151 if (is_product < 0 || !is_product)
2152 return is_product;
2153 return isl_space_range_is_wrapping(space);
2154}
2155
2156__isl_give isl_space *isl_space_wrap(__isl_take isl_space *dim)
2157{
2158 isl_space *wrap;
2159
2160 if (!dim)
2161 return NULL((void*)0);
2162
2163 wrap = isl_space_set_alloc(dim->ctx,
2164 dim->nparam, dim->n_in + dim->n_out);
2165
2166 wrap = copy_ids(wrap, isl_dim_param, 0, dim, isl_dim_param);
2167 wrap = copy_ids(wrap, isl_dim_set, 0, dim, isl_dim_in);
2168 wrap = copy_ids(wrap, isl_dim_set, dim->n_in, dim, isl_dim_out);
2169
2170 if (!wrap)
2171 goto error;
2172
2173 wrap->nested[1] = dim;
2174
2175 return wrap;
2176error:
2177 isl_space_free(dim);
2178 return NULL((void*)0);
2179}
2180
2181__isl_give isl_space *isl_space_unwrap(__isl_take isl_space *dim)
2182{
2183 isl_space *unwrap;
2184
2185 if (!dim)
2186 return NULL((void*)0);
2187
2188 if (!isl_space_is_wrapping(dim))
2189 isl_die(dim->ctx, isl_error_invalid, "not a wrapping space",do { isl_handle_error(dim->ctx, isl_error_invalid, "not a wrapping space"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 2190); goto error; } while (0)
2190 goto error)do { isl_handle_error(dim->ctx, isl_error_invalid, "not a wrapping space"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 2190); goto error; } while (0)
;
2191
2192 unwrap = isl_space_copy(dim->nested[1]);
2193 isl_space_free(dim);
2194
2195 return unwrap;
2196error:
2197 isl_space_free(dim);
2198 return NULL((void*)0);
2199}
2200
2201isl_bool isl_space_is_named_or_nested(__isl_keep isl_space *space,
2202 enum isl_dim_type type)
2203{
2204 if (type != isl_dim_in && type != isl_dim_out)
2205 return isl_bool_false;
2206 if (!space)
2207 return isl_bool_error;
2208 if (space->tuple_id[type - isl_dim_in])
2209 return isl_bool_true;
2210 if (space->nested[type - isl_dim_in])
2211 return isl_bool_true;
2212 return isl_bool_false;
2213}
2214
2215isl_bool isl_space_may_be_set(__isl_keep isl_space *space)
2216{
2217 isl_bool nested;
2218
2219 if (!space)
2220 return isl_bool_error;
2221 if (isl_space_is_set(space))
2222 return isl_bool_true;
2223 if (isl_space_dim(space, isl_dim_in) != 0)
2224 return isl_bool_false;
2225 nested = isl_space_is_named_or_nested(space, isl_dim_in);
2226 if (nested < 0 || nested)
2227 return isl_bool_not(nested);
2228 return isl_bool_true;
2229}
2230
2231__isl_give isl_space *isl_space_reset(__isl_take isl_space *dim,
2232 enum isl_dim_type type)
2233{
2234 if (!isl_space_is_named_or_nested(dim, type))
2235 return dim;
2236
2237 dim = isl_space_cow(dim);
2238 if (!dim)
2239 return NULL((void*)0);
2240
2241 isl_id_free(dim->tuple_id[type - isl_dim_in]);
2242 dim->tuple_id[type - isl_dim_in] = NULL((void*)0);
2243 isl_space_free(dim->nested[type - isl_dim_in]);
2244 dim->nested[type - isl_dim_in] = NULL((void*)0);
2245
2246 return dim;
2247}
2248
2249__isl_give isl_space *isl_space_flatten(__isl_take isl_space *dim)
2250{
2251 if (!dim)
2252 return NULL((void*)0);
2253 if (!dim->nested[0] && !dim->nested[1])
2254 return dim;
2255
2256 if (dim->nested[0])
2257 dim = isl_space_reset(dim, isl_dim_in);
2258 if (dim && dim->nested[1])
2259 dim = isl_space_reset(dim, isl_dim_out);
2260
2261 return dim;
2262}
2263
2264__isl_give isl_space *isl_space_flatten_domain(__isl_take isl_space *space)
2265{
2266 if (!space)
2267 return NULL((void*)0);
2268 if (!space->nested[0])
2269 return space;
2270
2271 return isl_space_reset(space, isl_dim_in);
2272}
2273
2274__isl_give isl_space *isl_space_flatten_range(__isl_take isl_space *space)
2275{
2276 if (!space)
2277 return NULL((void*)0);
2278 if (!space->nested[1])
2279 return space;
2280
2281 return isl_space_reset(space, isl_dim_out);
2282}
2283
2284/* Replace the parameters of dst by those of src.
2285 */
2286__isl_give isl_space *isl_space_replace_params(__isl_take isl_space *dst,
2287 __isl_keep isl_space *src)
2288{
2289 enum isl_dim_type type = isl_dim_param;
2290
2291 dst = isl_space_cow(dst);
2292
2293 if (!dst || !src)
2294 goto error;
2295
2296 dst = isl_space_drop_dims(dst, type, 0, isl_space_dim(dst, type));
2297 dst = isl_space_add_dims(dst, type, isl_space_dim(src, type));
2298 dst = copy_ids(dst, type, 0, src, type);
2299
2300 if (dst) {
2301 int i;
2302 for (i = 0; i <= 1; ++i) {
2303 if (!dst->nested[i])
2304 continue;
2305 dst->nested[i] = isl_space_replace_params(
2306 dst->nested[i], src);
2307 if (!dst->nested[i])
2308 goto error;
2309 }
2310 }
2311
2312 return dst;
2313error:
2314 isl_space_free(dst);
2315 return NULL((void*)0);
2316}
2317
2318/* Given a dimension specification "dim" of a set, create a dimension
2319 * specification for the lift of the set. In particular, the result
2320 * is of the form [dim -> local[..]], with n_local variables in the
2321 * range of the wrapped map.
2322 */
2323__isl_give isl_space *isl_space_lift(__isl_take isl_space *dim, unsigned n_local)
2324{
2325 isl_space *local_dim;
2326
2327 if (!dim)
2328 return NULL((void*)0);
2329
2330 local_dim = isl_space_dup(dim);
2331 local_dim = isl_space_drop_dims(local_dim, isl_dim_set, 0, dim->n_out);
2332 local_dim = isl_space_add_dims(local_dim, isl_dim_set, n_local);
2333 local_dim = isl_space_set_tuple_name(local_dim, isl_dim_set, "local");
2334 dim = isl_space_join(isl_space_from_domain(dim),
2335 isl_space_from_range(local_dim));
2336 dim = isl_space_wrap(dim);
2337 dim = isl_space_set_tuple_name(dim, isl_dim_set, "lifted");
2338
2339 return dim;
2340}
2341
2342isl_bool isl_space_can_zip(__isl_keep isl_space *space)
2343{
2344 isl_bool is_set;
2345
2346 is_set = isl_space_is_set(space);
2347 if (is_set < 0)
2348 return isl_bool_error;
2349 if (is_set)
2350 return isl_bool_false;
2351 return isl_space_is_product(space);
2352}
2353
2354__isl_give isl_space *isl_space_zip(__isl_take isl_space *dim)
2355{
2356 isl_space *dom, *ran;
2357 isl_space *dom_dom, *dom_ran, *ran_dom, *ran_ran;
2358
2359 if (!isl_space_can_zip(dim))
2360 isl_die(dim->ctx, isl_error_invalid, "dim cannot be zipped",do { isl_handle_error(dim->ctx, isl_error_invalid, "dim cannot be zipped"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 2361); goto error; } while (0)
2361 goto error)do { isl_handle_error(dim->ctx, isl_error_invalid, "dim cannot be zipped"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 2361); goto error; } while (0)
;
2362
2363 if (!dim)
2364 return NULL((void*)0);
2365 dom = isl_space_unwrap(isl_space_domain(isl_space_copy(dim)));
2366 ran = isl_space_unwrap(isl_space_range(dim));
2367 dom_dom = isl_space_domain(isl_space_copy(dom));
2368 dom_ran = isl_space_range(dom);
2369 ran_dom = isl_space_domain(isl_space_copy(ran));
2370 ran_ran = isl_space_range(ran);
2371 dom = isl_space_join(isl_space_from_domain(dom_dom),
2372 isl_space_from_range(ran_dom));
2373 ran = isl_space_join(isl_space_from_domain(dom_ran),
2374 isl_space_from_range(ran_ran));
2375 return isl_space_join(isl_space_from_domain(isl_space_wrap(dom)),
2376 isl_space_from_range(isl_space_wrap(ran)));
2377error:
2378 isl_space_free(dim);
2379 return NULL((void*)0);
2380}
2381
2382/* Can we apply isl_space_curry to "space"?
2383 * That is, does it have a nested relation in its domain?
2384 */
2385isl_bool isl_space_can_curry(__isl_keep isl_space *space)
2386{
2387 if (!space)
2388 return isl_bool_error;
2389
2390 return !!space->nested[0];
2391}
2392
2393/* Given a space (A -> B) -> C, return the corresponding space
2394 * A -> (B -> C).
2395 */
2396__isl_give isl_space *isl_space_curry(__isl_take isl_space *space)
2397{
2398 isl_space *dom, *ran;
2399 isl_space *dom_dom, *dom_ran;
2400
2401 if (!space)
2402 return NULL((void*)0);
2403
2404 if (!isl_space_can_curry(space))
2405 isl_die(space->ctx, isl_error_invalid,do { isl_handle_error(space->ctx, isl_error_invalid, "space cannot be curried"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 2406); goto error; } while (0)
2406 "space cannot be curried", goto error)do { isl_handle_error(space->ctx, isl_error_invalid, "space cannot be curried"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 2406); goto error; } while (0)
;
2407
2408 dom = isl_space_unwrap(isl_space_domain(isl_space_copy(space)));
2409 ran = isl_space_range(space);
2410 dom_dom = isl_space_domain(isl_space_copy(dom));
2411 dom_ran = isl_space_range(dom);
2412 ran = isl_space_join(isl_space_from_domain(dom_ran),
2413 isl_space_from_range(ran));
2414 return isl_space_join(isl_space_from_domain(dom_dom),
2415 isl_space_from_range(isl_space_wrap(ran)));
2416error:
2417 isl_space_free(space);
2418 return NULL((void*)0);
2419}
2420
2421/* Can isl_space_range_curry be applied to "space"?
2422 * That is, does it have a nested relation in its range,
2423 * the domain of which is itself a nested relation?
2424 */
2425isl_bool isl_space_can_range_curry(__isl_keep isl_space *space)
2426{
2427 isl_bool can;
2428
2429 if (!space)
2430 return isl_bool_error;
2431 can = isl_space_range_is_wrapping(space);
2432 if (can < 0 || !can)
2433 return can;
2434 return isl_space_can_curry(space->nested[1]);
2435}
2436
2437/* Given a space A -> ((B -> C) -> D), return the corresponding space
2438 * A -> (B -> (C -> D)).
2439 */
2440__isl_give isl_space *isl_space_range_curry(__isl_take isl_space *space)
2441{
2442 if (!space)
2443 return NULL((void*)0);
2444
2445 if (!isl_space_can_range_curry(space))
2446 isl_die(isl_space_get_ctx(space), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "space range cannot be curried", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 2448); return isl_space_free(space); } while (0)
2447 "space range cannot be curried",do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "space range cannot be curried", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 2448); return isl_space_free(space); } while (0)
2448 return isl_space_free(space))do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "space range cannot be curried", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 2448); return isl_space_free(space); } while (0)
;
2449
2450 space = isl_space_cow(space);
2451 if (!space)
2452 return NULL((void*)0);
2453 space->nested[1] = isl_space_curry(space->nested[1]);
2454 if (!space->nested[1])
2455 return isl_space_free(space);
2456
2457 return space;
2458}
2459
2460/* Can we apply isl_space_uncurry to "space"?
2461 * That is, does it have a nested relation in its range?
2462 */
2463isl_bool isl_space_can_uncurry(__isl_keep isl_space *space)
2464{
2465 if (!space)
2466 return isl_bool_error;
2467
2468 return !!space->nested[1];
2469}
2470
2471/* Given a space A -> (B -> C), return the corresponding space
2472 * (A -> B) -> C.
2473 */
2474__isl_give isl_space *isl_space_uncurry(__isl_take isl_space *space)
2475{
2476 isl_space *dom, *ran;
2477 isl_space *ran_dom, *ran_ran;
2478
2479 if (!space)
2480 return NULL((void*)0);
2481
2482 if (!isl_space_can_uncurry(space))
2483 isl_die(space->ctx, isl_error_invalid,do { isl_handle_error(space->ctx, isl_error_invalid, "space cannot be uncurried"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 2485); return isl_space_free(space); } while (0)
2484 "space cannot be uncurried",do { isl_handle_error(space->ctx, isl_error_invalid, "space cannot be uncurried"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 2485); return isl_space_free(space); } while (0)
2485 return isl_space_free(space))do { isl_handle_error(space->ctx, isl_error_invalid, "space cannot be uncurried"
, "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 2485); return isl_space_free(space); } while (0)
;
2486
2487 dom = isl_space_domain(isl_space_copy(space));
2488 ran = isl_space_unwrap(isl_space_range(space));
2489 ran_dom = isl_space_domain(isl_space_copy(ran));
2490 ran_ran = isl_space_range(ran);
2491 dom = isl_space_join(isl_space_from_domain(dom),
2492 isl_space_from_range(ran_dom));
2493 return isl_space_join(isl_space_from_domain(isl_space_wrap(dom)),
2494 isl_space_from_range(ran_ran));
2495}
2496
2497isl_bool isl_space_has_named_params(__isl_keep isl_space *space)
2498{
2499 int i;
2500 unsigned off;
2501
2502 if (!space)
2503 return isl_bool_error;
2504 if (space->nparam == 0)
2505 return isl_bool_true;
2506 off = isl_space_offset(space, isl_dim_param);
2507 if (off + space->nparam > space->n_id)
2508 return isl_bool_false;
2509 for (i = 0; i < space->nparam; ++i)
2510 if (!space->ids[off + i])
2511 return isl_bool_false;
2512 return isl_bool_true;
2513}
2514
2515/* Check that "space" has only named parameters, reporting an error
2516 * if it does not.
2517 */
2518isl_stat isl_space_check_named_params(__isl_keep isl_space *space)
2519{
2520 isl_bool named;
2521
2522 named = isl_space_has_named_params(space);
2523 if (named < 0)
2524 return isl_stat_error;
2525 if (!named)
2526 isl_die(isl_space_get_ctx(space), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "unaligned unnamed parameters", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 2527); return isl_stat_error; } while (0)
2527 "unaligned unnamed parameters", return isl_stat_error)do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "unaligned unnamed parameters", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 2527); return isl_stat_error; } while (0)
;
2528
2529 return isl_stat_ok;
2530}
2531
2532/* Align the initial parameters of dim1 to match the order in dim2.
2533 */
2534__isl_give isl_space *isl_space_align_params(__isl_take isl_space *dim1,
2535 __isl_take isl_space *dim2)
2536{
2537 isl_reordering *exp;
2538
2539 if (!isl_space_has_named_params(dim1) || !isl_space_has_named_params(dim2))
2540 isl_die(isl_space_get_ctx(dim1), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(dim1), isl_error_invalid
, "parameter alignment requires named parameters", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 2542); goto error; } while (0)
2541 "parameter alignment requires named parameters",do { isl_handle_error(isl_space_get_ctx(dim1), isl_error_invalid
, "parameter alignment requires named parameters", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 2542); goto error; } while (0)
2542 goto error)do { isl_handle_error(isl_space_get_ctx(dim1), isl_error_invalid
, "parameter alignment requires named parameters", "/build/llvm-toolchain-snapshot-7~svn329677/tools/polly/lib/External/isl/isl_space.c"
, 2542); goto error; } while (0)
;
2543
2544 dim2 = isl_space_params(dim2);
2545 exp = isl_parameter_alignment_reordering(dim1, dim2);
2546 exp = isl_reordering_extend_space(exp, dim1);
2547 isl_space_free(dim2);
2548 if (!exp)
2549 return NULL((void*)0);
2550 dim1 = isl_space_copy(exp->dim);
2551 isl_reordering_free(exp);
2552 return dim1;
2553error:
2554 isl_space_free(dim1);
2555 isl_space_free(dim2);
2556 return NULL((void*)0);
2557}
2558
2559/* Given the space of set (domain), construct a space for a map
2560 * with as domain the given space and as range the range of "model".
2561 */
2562__isl_give isl_space *isl_space_extend_domain_with_range(
2563 __isl_take isl_space *space, __isl_take isl_space *model)
2564{
2565 if (!model)
2566 goto error;
2567
2568 space = isl_space_from_domain(space);
2569 space = isl_space_add_dims(space, isl_dim_out,
2570 isl_space_dim(model, isl_dim_out));
2571 if (isl_space_has_tuple_id(model, isl_dim_out))
2572 space = isl_space_set_tuple_id(space, isl_dim_out,
2573 isl_space_get_tuple_id(model, isl_dim_out));
2574 if (!space)
2575 goto error;
2576 if (model->nested[1]) {
2577 isl_space *nested = isl_space_copy(model->nested[1]);
2578 int n_nested, n_space;
2579 nested = isl_space_align_params(nested, isl_space_copy(space));
2580 n_nested = isl_space_dim(nested, isl_dim_param);
2581 n_space = isl_space_dim(space, isl_dim_param);
2582 if (n_nested > n_space)
2583 nested = isl_space_drop_dims(nested, isl_dim_param,
2584 n_space, n_nested - n_space);
2585 if (!nested)
2586 goto error;
2587 space->nested[1] = nested;
2588 }
2589 isl_space_free(model);
2590 return space;
2591error:
2592 isl_space_free(model);
2593 isl_space_free(space);
2594 return NULL((void*)0);
2595}
2596
2597/* Compare the "type" dimensions of two isl_spaces.
2598 *
2599 * The order is fairly arbitrary.
2600 */
2601static int isl_space_cmp_type(__isl_keep isl_space *space1,
2602 __isl_keep isl_space *space2, enum isl_dim_type type)
2603{
2604 int cmp;
2605 isl_space *nested1, *nested2;
2606
2607 if (isl_space_dim(space1, type) != isl_space_dim(space2, type))
2608 return isl_space_dim(space1, type) -
2609 isl_space_dim(space2, type);
2610
2611 cmp = isl_id_cmp(tuple_id(space1, type), tuple_id(space2, type));
2612 if (cmp != 0)
2613 return cmp;
2614
2615 nested1 = nested(space1, type);
2616 nested2 = nested(space2, type);
2617 if (!nested1 != !nested2)
2618 return !nested1 - !nested2;
2619
2620 if (nested1)
2621 return isl_space_cmp(nested1, nested2);
2622
2623 return 0;
2624}
2625
2626/* Compare two isl_spaces.
2627 *
2628 * The order is fairly arbitrary.
2629 */
2630int isl_space_cmp(__isl_keep isl_space *space1, __isl_keep isl_space *space2)
2631{
2632 int i;
2633 int cmp;
2634
2635 if (space1 == space2)
2636 return 0;
2637 if (!space1)
2638 return -1;
2639 if (!space2)
2640 return 1;
2641
2642 cmp = isl_space_cmp_type(space1, space2, isl_dim_param);
2643 if (cmp != 0)
2644 return cmp;
2645 cmp = isl_space_cmp_type(space1, space2, isl_dim_in);
2646 if (cmp != 0)
2647 return cmp;
2648 cmp = isl_space_cmp_type(space1, space2, isl_dim_out);
2649 if (cmp != 0)
2650 return cmp;
2651
2652 if (!space1->ids && !space2->ids)
2653 return 0;
2654
2655 for (i = 0; i < n(space1, isl_dim_param); ++i) {
2656 cmp = isl_id_cmp(get_id(space1, isl_dim_param, i),
2657 get_id(space2, isl_dim_param, i));
2658 if (cmp != 0)
2659 return cmp;
2660 }
2661
2662 return 0;
2663}