add isl_aff_mod_val

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

diff --git a/isl_constraint.c b/isl_constraint.c
index 68971b3..7a06fa7 100644 (file)
--- a/isl_constraint.c
+++ b/isl_constraint.c
@@ -2,7 +2,7 @@
  * Copyright 2008-2009 Katholieke Universiteit Leuven
  * Copyright 2010      INRIA Saclay
  *
- * Use of this software is governed by the GNU LGPLv2.1 license
+ * Use of this software is governed by the MIT license
  *
  * Written by Sven Verdoolaege, K.U.Leuven, Departement
  * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
@@ -16,6 +16,12 @@
 #include <isl/seq.h>
 #include <isl_aff_private.h>
 #include <isl_local_space_private.h>
+#include <isl_val_private.h>
+
+#undef BASE
+#define BASE constraint
+
+#include <isl_list_templ.c>
 
 isl_ctx *isl_constraint_get_ctx(__isl_keep isl_constraint *c)
 {
@@ -303,6 +309,12 @@ __isl_give isl_space *isl_constraint_get_space(
        return constraint ? isl_local_space_get_space(constraint->ls) : NULL;
 }
 
+__isl_give isl_local_space *isl_constraint_get_local_space(
+       __isl_keep isl_constraint *constraint)
+{
+       return constraint ? isl_local_space_copy(constraint->ls) : NULL;
+}
+
 int isl_constraint_dim(struct isl_constraint *constraint,
        enum isl_dim_type type)
 {
@@ -349,6 +361,40 @@ error:
        return -1;
 }
 
+/* Does the given constraint represent a lower bound on the given
+ * dimension?
+ */
+int isl_constraint_is_lower_bound(__isl_keep isl_constraint *constraint,
+       enum isl_dim_type type, unsigned pos)
+{
+       if (!constraint)
+               return -1;
+
+       if (pos >= isl_local_space_dim(constraint->ls, type))
+               isl_die(isl_constraint_get_ctx(constraint), isl_error_invalid,
+                       "position out of bounds", return -1);
+
+       pos += isl_local_space_offset(constraint->ls, type);
+       return isl_int_is_pos(constraint->v->el[pos]);
+}
+
+/* Does the given constraint represent an upper bound on the given
+ * dimension?
+ */
+int isl_constraint_is_upper_bound(__isl_keep isl_constraint *constraint,
+       enum isl_dim_type type, unsigned pos)
+{
+       if (!constraint)
+               return -1;
+
+       if (pos >= isl_local_space_dim(constraint->ls, type))
+               isl_die(isl_constraint_get_ctx(constraint), isl_error_invalid,
+                       "position out of bounds", return -1);
+
+       pos += isl_local_space_offset(constraint->ls, type);
+       return isl_int_is_neg(constraint->v->el[pos]);
+}
+
 const char *isl_constraint_get_dim_name(__isl_keep isl_constraint *constraint,
        enum isl_dim_type type, unsigned pos)
 {
@@ -363,6 +409,20 @@ void isl_constraint_get_constant(struct isl_constraint *constraint, isl_int *v)
        isl_int_set(*v, constraint->v->el[0]);
 }
 
+/* Return the constant term of "constraint".
+ */
+__isl_give isl_val *isl_constraint_get_constant_val(
+       __isl_keep isl_constraint *constraint)
+{
+       isl_ctx *ctx;
+
+       if (!constraint)
+               return NULL;
+
+       ctx = isl_constraint_get_ctx(constraint);
+       return isl_val_int_from_isl_int(ctx, constraint->v->el[0]);
+}
+
 void isl_constraint_get_coefficient(struct isl_constraint *constraint,
        enum isl_dim_type type, int pos, isl_int *v)
 {
@@ -377,6 +437,26 @@ void isl_constraint_get_coefficient(struct isl_constraint *constraint,
        isl_int_set(*v, constraint->v->el[pos]);
 }
 
+/* Return the coefficient of the variable of type "type" at position "pos"
+ * of "constraint".
+ */
+__isl_give isl_val *isl_constraint_get_coefficient_val(
+       __isl_keep isl_constraint *constraint, enum isl_dim_type type, int pos)
+{
+       isl_ctx *ctx;
+
+       if (!constraint)
+               return NULL;
+
+       ctx = isl_constraint_get_ctx(constraint);
+       if (pos < 0 || pos >= isl_local_space_dim(constraint->ls, type))
+               isl_die(ctx, isl_error_invalid,
+                       "position out of bounds", return NULL);
+
+       pos += isl_local_space_offset(constraint->ls, type);
+       return isl_val_int_from_isl_int(ctx, constraint->v->el[pos]);
+}
+
 __isl_give isl_aff *isl_constraint_get_div(__isl_keep isl_constraint *constraint,
        int pos)
 {
@@ -401,6 +481,26 @@ __isl_give isl_constraint *isl_constraint_set_constant(
        return constraint;
 }
 
+/* Replace the constant term of "constraint" by "v".
+ */
+__isl_give isl_constraint *isl_constraint_set_constant_val(
+       __isl_take isl_constraint *constraint, __isl_take isl_val *v)
+{
+       constraint = isl_constraint_cow(constraint);
+       if (!constraint || !v)
+               goto error;
+       if (!isl_val_is_int(v))
+               isl_die(isl_constraint_get_ctx(constraint), isl_error_invalid,
+                       "expecting integer value", goto error);
+       constraint->v = isl_vec_set_element_val(constraint->v, 0, v);
+       if (!constraint->v)
+               constraint = isl_constraint_free(constraint);
+       return constraint;
+error:
+       isl_val_free(v);
+       return isl_constraint_free(constraint);
+}
+
 __isl_give isl_constraint *isl_constraint_set_constant_si(
        __isl_take isl_constraint *constraint, int v)
 {
@@ -443,6 +543,34 @@ __isl_give isl_constraint *isl_constraint_set_coefficient(
        return constraint;
 }
 
+/* Replace the coefficient of the variable of type "type" at position "pos"
+ * of "constraint" by "v".
+ */
+__isl_give isl_constraint *isl_constraint_set_coefficient_val(
+       __isl_take isl_constraint *constraint,
+       enum isl_dim_type type, int pos, isl_val *v)
+{
+       constraint = isl_constraint_cow(constraint);
+       if (!constraint || !v)
+               goto error;
+       if (!isl_val_is_int(v))
+               isl_die(isl_constraint_get_ctx(constraint), isl_error_invalid,
+                       "expecting integer value", goto error);
+
+       if (pos >= isl_local_space_dim(constraint->ls, type))
+               isl_die(isl_constraint_get_ctx(constraint), isl_error_invalid,
+                       "position out of bounds", goto error);
+
+       pos += isl_local_space_offset(constraint->ls, type);
+       constraint->v = isl_vec_set_element_val(constraint->v, pos, v);
+       if (!constraint->v)
+               constraint = isl_constraint_free(constraint);
+       return constraint;
+error:
+       isl_val_free(v);
+       return isl_constraint_free(constraint);
+}
+
 __isl_give isl_constraint *isl_constraint_set_coefficient_si(
        __isl_take isl_constraint *constraint,
        enum isl_dim_type type, int pos, int v)