add isl_multi_aff

[platform/upstream/isl.git] / isl_pw_templ.c

diff --git a/isl_pw_templ.c b/isl_pw_templ.c
index ae9328d..c1200b9 100644 (file)
--- a/isl_pw_templ.c
+++ b/isl_pw_templ.c
@@ -249,7 +249,7 @@ error:
        return NULL;
 }
 
-static __isl_give PW *align_params_pw_pw_and(__isl_take PW *pw1,
+static __isl_give PW *FN(PW,align_params_pw_pw_and)(__isl_take PW *pw1,
        __isl_take PW *pw2,
        __isl_give PW *(*fn)(__isl_take PW *pw1, __isl_take PW *pw2))
 {
@@ -273,7 +273,7 @@ error:
        return NULL;
 }
 
-static __isl_give PW *align_params_pw_set_and(__isl_take PW *pw,
+static __isl_give PW *FN(PW,align_params_pw_set_and)(__isl_take PW *pw,
        __isl_take isl_set *set,
        __isl_give PW *(*fn)(__isl_take PW *pw, __isl_take isl_set *set))
 {
@@ -376,7 +376,7 @@ error:
 
 __isl_give PW *FN(PW,add)(__isl_take PW *pw1, __isl_take PW *pw2)
 {
-       return align_params_pw_pw_and(pw1, pw2, &FN(PW,add_aligned));
+       return FN(PW,align_params_pw_pw_and)(pw1, pw2, &FN(PW,add_aligned));
 }
 
 /* Make sure "pw" has room for at least "n" more pieces.
@@ -468,7 +468,8 @@ error:
 
 __isl_give PW *FN(PW,add_disjoint)(__isl_take PW *pw1, __isl_take PW *pw2)
 {
-       return align_params_pw_pw_and(pw1, pw2, &FN(PW,add_disjoint_aligned));
+       return FN(PW,align_params_pw_pw_and)(pw1, pw2,
+                                               &FN(PW,add_disjoint_aligned));
 }
 
 #ifndef NO_NEG
@@ -603,7 +604,7 @@ error:
 __isl_give PW *FN(PW,intersect_domain)(__isl_take PW *pw,
        __isl_take isl_set *context)
 {
-       return align_params_pw_set_and(pw, context,
+       return FN(PW,align_params_pw_set_and)(pw, context,
                                        &FN(PW,intersect_domain_aligned));
 }
 
@@ -667,7 +668,7 @@ error:
 
 __isl_give PW *FN(PW,gist)(__isl_take PW *pw, __isl_take isl_set *context)
 {
-       return align_params_pw_set_and(pw, context, &FN(PW,gist_aligned));
+       return FN(PW,align_params_pw_set_and)(pw, context, &FN(PW,gist_aligned));
 }
 
 __isl_give PW *FN(PW,coalesce)(__isl_take PW *pw)
@@ -1074,6 +1075,21 @@ __isl_give PW *FN(PW,reset_space)(__isl_take PW *pw, __isl_take isl_space *dim)
        domain = isl_space_domain(isl_space_copy(dim));
        return FN(PW,reset_space_and_domain)(pw, dim, domain);
 }
+
+__isl_give PW *FN(PW,set_tuple_id)(__isl_keep PW *pw, enum isl_dim_type type,
+       __isl_take isl_id *id)
+{
+       isl_space *space;
+
+       pw = FN(PW,cow)(pw);
+       if (!pw)
+               return isl_id_free(id);
+
+       space = FN(PW,get_space)(pw);
+       space = isl_space_set_tuple_id(space, type, id);
+
+       return FN(PW,reset_space)(pw, space);
+}
 #endif
 
 int FN(PW,has_equal_space)(__isl_keep PW *pw1, __isl_keep PW *pw2)
@@ -1304,3 +1320,96 @@ __isl_give PW *FN(PW,scale)(__isl_take PW *pw, isl_int v)
 {
        return FN(PW,mul_isl_int)(pw, v);
 }
+
+static int FN(PW,qsort_set_cmp)(const void *p1, const void *p2)
+{
+       const isl_set *set1 = *(const isl_set **)p1;
+       const isl_set *set2 = *(const isl_set **)p2;
+
+       return isl_set_plain_cmp(set1, set2);
+}
+
+/* We normalize in place, but if anything goes wrong we need
+ * to return NULL, so we need to make sure we don't change the
+ * meaning of any possible other copies of map.
+ */
+__isl_give PW *FN(PW,normalize)(__isl_take PW *pw)
+{
+       int i, j;
+       isl_set *set;
+
+       if (!pw)
+               return NULL;
+       for (i = 0; i < pw->n; ++i) {
+               set = isl_set_normalize(isl_set_copy(pw->p[i].set));
+               if (!set)
+                       return FN(PW,free)(pw);
+               isl_set_free(pw->p[i].set);
+               pw->p[i].set = set;
+       }
+       qsort(pw->p, pw->n, sizeof(pw->p[0]), &FN(PW,qsort_set_cmp));
+       for (i = pw->n - 1; i >= 1; --i) {
+               if (!isl_set_plain_is_equal(pw->p[i - 1].set, pw->p[i].set))
+                       continue;
+               if (!FN(EL,plain_is_equal)(pw->p[i - 1].FIELD, pw->p[i].FIELD))
+                       continue;
+               set = isl_set_union(isl_set_copy(pw->p[i - 1].set),
+                                   isl_set_copy(pw->p[i].set));
+               if (!set)
+                       return FN(PW,free)(pw);
+               isl_set_free(pw->p[i].set);
+               FN(EL,free)(pw->p[i].FIELD);
+               isl_set_free(pw->p[i - 1].set);
+               pw->p[i - 1].set = set;
+               for (j = i + 1; j < pw->n; ++j)
+                       pw->p[j - 1] = pw->p[j];
+               pw->n--;
+       }
+
+       return pw;
+}
+
+/* Is pw1 obviously equal to pw2?
+ * That is, do they have obviously identical cells and obviously identical
+ * elements on each cell?
+ */
+int FN(PW,plain_is_equal)(__isl_keep PW *pw1, __isl_keep PW *pw2)
+{
+       int i;
+       int equal;
+
+       if (!pw1 || !pw2)
+               return -1;
+
+       if (pw1 == pw2)
+               return 1;
+       if (!isl_space_is_equal(pw1->dim, pw2->dim))
+               return 0;
+
+       pw1 = FN(PW,copy)(pw1);
+       pw2 = FN(PW,copy)(pw2);
+       pw1 = FN(PW,normalize)(pw1);
+       pw2 = FN(PW,normalize)(pw2);
+       if (!pw1 || !pw2)
+               goto error;
+
+       equal = pw1->n == pw2->n;
+       for (i = 0; equal && i < pw1->n; ++i) {
+               equal = isl_set_plain_is_equal(pw1->p[i].set, pw2->p[i].set);
+               if (equal < 0)
+                       goto error;
+               if (!equal)
+                       break;
+               equal = FN(EL,plain_is_equal)(pw1->p[i].FIELD, pw2->p[i].FIELD);
+               if (equal < 0)
+                       goto error;
+       }
+
+       FN(PW,free)(pw1);
+       FN(PW,free)(pw2);
+       return equal;
+error:
+       FN(PW,free)(pw1);
+       FN(PW,free)(pw2);
+       return -1;
+}