add public API for matrices

[platform/upstream/isl.git] / isl_tab.h

diff --git a/isl_tab.h b/isl_tab.h
index bf9ef88..f288c0c 100644 (file)
--- a/isl_tab.h
+++ b/isl_tab.h
@@ -1,3 +1,12 @@
+/*
+ * Copyright 2008-2009 Katholieke Universiteit Leuven
+ *
+ * Use of this software is governed by the GNU LGPLv2.1 license
+ *
+ * Written by Sven Verdoolaege, K.U.Leuven, Departement
+ * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
+ */
+
 #ifndef ISL_TAB_H
 #define ISL_TAB_H
 
@@ -26,9 +35,9 @@ enum isl_tab_undo_type {
        isl_tab_undo_zero,
        isl_tab_undo_allocate,
        isl_tab_undo_relax,
-       isl_tab_undo_bset_ineq,
-       isl_tab_undo_bset_eq,
-       isl_tab_undo_bset_div,
+       isl_tab_undo_bmap_ineq,
+       isl_tab_undo_bmap_eq,
+       isl_tab_undo_bmap_div,
        isl_tab_undo_saved_basis,
        isl_tab_undo_drop_sample,
        isl_tab_undo_saved_samples,
@@ -141,7 +150,7 @@ struct isl_tab {
        struct isl_tab_undo *top;
 
        struct isl_vec *dual;
-       struct isl_basic_set *bset;
+       struct isl_basic_map *bmap;
 
        unsigned n_sample;
        unsigned n_outside;
@@ -152,6 +161,7 @@ struct isl_tab {
        int n_unbounded;
        struct isl_mat *basis;
 
+       unsigned strict_redundant : 1;
        unsigned need_undo : 1;
        unsigned rational : 1;
        unsigned empty : 1;
@@ -166,13 +176,14 @@ void isl_tab_free(struct isl_tab *tab);
 
 struct isl_tab *isl_tab_from_basic_map(struct isl_basic_map *bmap);
 struct isl_tab *isl_tab_from_basic_set(struct isl_basic_set *bset);
-struct isl_tab *isl_tab_from_recession_cone(struct isl_basic_set *bset);
+struct isl_tab *isl_tab_from_recession_cone(struct isl_basic_set *bset,
+       int parametric);
 int isl_tab_cone_is_bounded(struct isl_tab *tab);
 struct isl_basic_map *isl_basic_map_update_from_tab(struct isl_basic_map *bmap,
        struct isl_tab *tab);
 struct isl_basic_set *isl_basic_set_update_from_tab(struct isl_basic_set *bset,
        struct isl_tab *tab);
-struct isl_tab *isl_tab_detect_implicit_equalities(struct isl_tab *tab) WARN_UNUSED;
+int isl_tab_detect_implicit_equalities(struct isl_tab *tab) WARN_UNUSED;
 int isl_tab_detect_redundant(struct isl_tab *tab) WARN_UNUSED;
 #define ISL_TAB_SAVE_DUAL      (1 << 0)
 enum isl_lp_result isl_tab_min(struct isl_tab *tab,
@@ -181,11 +192,15 @@ enum isl_lp_result isl_tab_min(struct isl_tab *tab,
 
 struct isl_tab *isl_tab_extend(struct isl_tab *tab, unsigned n_new) WARN_UNUSED;
 int isl_tab_add_ineq(struct isl_tab *tab, isl_int *ineq) WARN_UNUSED;
-struct isl_tab *isl_tab_add_eq(struct isl_tab *tab, isl_int *eq) WARN_UNUSED;
-struct isl_tab *isl_tab_add_valid_eq(struct isl_tab *tab, isl_int *eq) WARN_UNUSED;
+int isl_tab_add_eq(struct isl_tab *tab, isl_int *eq) WARN_UNUSED;
+int isl_tab_add_valid_eq(struct isl_tab *tab, isl_int *eq) WARN_UNUSED;
 
 int isl_tab_freeze_constraint(struct isl_tab *tab, int con) WARN_UNUSED;
 
+int isl_tab_track_bmap(struct isl_tab *tab, __isl_take isl_basic_map *bmap) WARN_UNUSED;
+int isl_tab_track_bset(struct isl_tab *tab, __isl_take isl_basic_set *bset) WARN_UNUSED;
+__isl_keep isl_basic_set *isl_tab_peek_bset(struct isl_tab *tab);
+
 int isl_tab_is_equality(struct isl_tab *tab, int con);
 int isl_tab_is_redundant(struct isl_tab *tab, int con);
 
@@ -207,7 +222,7 @@ struct isl_tab_undo *isl_tab_snap(struct isl_tab *tab);
 int isl_tab_rollback(struct isl_tab *tab, struct isl_tab_undo *snap) WARN_UNUSED;
 
 struct isl_tab *isl_tab_relax(struct isl_tab *tab, int con) WARN_UNUSED;
-struct isl_tab *isl_tab_select_facet(struct isl_tab *tab, int con) WARN_UNUSED;
+int isl_tab_select_facet(struct isl_tab *tab, int con) WARN_UNUSED;
 
 void isl_tab_dump(struct isl_tab *tab, FILE *out, int indent);
 
@@ -230,6 +245,7 @@ int isl_tab_pivot(struct isl_tab *tab, int row, int col) WARN_UNUSED;
 int isl_tab_add_row(struct isl_tab *tab, isl_int *line) WARN_UNUSED;
 int isl_tab_row_is_redundant(struct isl_tab *tab, int row);
 int isl_tab_min_at_most_neg_one(struct isl_tab *tab, struct isl_tab_var *var);
+int isl_tab_sign_of_max(struct isl_tab *tab, int con);
 int isl_tab_kill_col(struct isl_tab *tab, int col) WARN_UNUSED;
 
 int isl_tab_push(struct isl_tab *tab, enum isl_tab_undo_type type) WARN_UNUSED;
@@ -249,4 +265,7 @@ struct isl_tab *isl_tab_detect_equalities(struct isl_tab *tab,
 int isl_tab_push_callback(struct isl_tab *tab,
        struct isl_tab_callback *callback) WARN_UNUSED;
 
+int isl_tab_add_div(struct isl_tab *tab, __isl_keep isl_vec *div,
+       int (*add_ineq)(void *user, isl_int *), void *user);
+
 #endif