gcc/graphite-ppl.h

   1 /* Gimple Represented as Polyhedra.
   2    Copyright (C) 2009, 2010 Free Software Foundation, Inc.
   3    Contributed by Sebastian Pop <sebastian.pop@inria.fr>
   4    and Tobias Grosser <grosser@fim.uni-passau.de>.
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 3, or (at your option)
  11 any later version.
  12
  13 GCC is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GCC; see the file COPYING3.  If not see
  20 <http://www.gnu.org/licenses/>.  */
  21 #ifndef GCC_GRAPHITE_PPL_H
  22 #define GCC_GRAPHITE_PPL_H
  23
  24 #include "double-int.h"
  25 #include "tree.h"
  26
  27 ppl_Polyhedron_t ppl_strip_loop (ppl_Polyhedron_t, ppl_dimension_type, int);
  28 int ppl_lexico_compare_linear_expressions (ppl_Linear_Expression_t,
  29                                            ppl_Linear_Expression_t);
  30
  31 void ppl_print_polyhedron_matrix (FILE *, ppl_const_Polyhedron_t);
  32 void ppl_print_powerset_matrix (FILE *, ppl_Pointset_Powerset_C_Polyhedron_t);
  33 void debug_ppl_polyhedron_matrix (ppl_Polyhedron_t);
  34 void debug_ppl_powerset_matrix (ppl_Pointset_Powerset_C_Polyhedron_t);
  35 void ppl_print_linear_expr (FILE *, ppl_Linear_Expression_t);
  36 void debug_ppl_linear_expr (ppl_Linear_Expression_t);
  37 void ppl_read_polyhedron_matrix (ppl_Polyhedron_t *, FILE *);
  38 void ppl_insert_dimensions (ppl_Polyhedron_t, int, int);
  39 void ppl_insert_dimensions_pointset (ppl_Pointset_Powerset_C_Polyhedron_t, int,
  40                                      int);
  41 void ppl_set_inhomogeneous_gmp (ppl_Linear_Expression_t, mpz_t);
  42 void ppl_set_coef_gmp (ppl_Linear_Expression_t, ppl_dimension_type, mpz_t);
  43 void ppl_max_for_le_pointset (ppl_Pointset_Powerset_C_Polyhedron_t,
  44                               ppl_Linear_Expression_t, mpz_t);
  45 void ppl_min_for_le_pointset (ppl_Pointset_Powerset_C_Polyhedron_t,
  46                               ppl_Linear_Expression_t, mpz_t);
  47 ppl_Constraint_t ppl_build_relation (int, int, int, int,
  48                                      enum ppl_enum_Constraint_Type);
  49
  50 /* Assigns to RES the value of the INTEGER_CST T.  */
  51
  52 static inline void
  53 tree_int_to_gmp (tree t, mpz_t res)
  54 {
  55   double_int di = tree_to_double_int (t);
  56   mpz_set_double_int (res, di, TYPE_UNSIGNED (TREE_TYPE (t)));
  57 }
  58
  59 /* Converts a GMP constant VAL to a tree and returns it.  */
  60
  61 static inline tree
  62 gmp_cst_to_tree (tree type, mpz_t val)
  63 {
  64   tree t = type ? type : integer_type_node;
  65   mpz_t tmp;
  66   double_int di;
  67
  68   mpz_init (tmp);
  69   mpz_set (tmp, val);
  70   di = mpz_get_double_int (t, tmp, true);
  71   mpz_clear (tmp);
  72
  73   return double_int_to_tree (t, di);
  74 }
  75
  76 /* Set the inhomogeneous term of E to the integer X.  */
  77
  78 static inline void
  79 ppl_set_inhomogeneous (ppl_Linear_Expression_t e, int x)
  80 {
  81   mpz_t v;
  82   mpz_init (v);
  83   mpz_set_si (v, x);
  84   ppl_set_inhomogeneous_gmp (e, v);
  85   mpz_clear (v);
  86 }
  87
  88 /* Set the inhomogeneous term of E to the tree X.  */
  89
  90 static inline void
  91 ppl_set_inhomogeneous_tree (ppl_Linear_Expression_t e, tree x)
  92 {
  93   mpz_t v;
  94   mpz_init (v);
  95   tree_int_to_gmp (x, v);
  96   ppl_set_inhomogeneous_gmp (e, v);
  97   mpz_clear (v);
  98 }
  99
 100 /* Set E[I] to integer X.  */
 101
 102 static inline void
 103 ppl_set_coef (ppl_Linear_Expression_t e, ppl_dimension_type i, int x)
 104 {
 105   mpz_t v;
 106   mpz_init (v);
 107   mpz_set_si (v, x);
 108   ppl_set_coef_gmp (e, i, v);
 109   mpz_clear (v);
 110 }
 111
 112 /* Set E[I] to tree X.  */
 113
 114 static inline void
 115 ppl_set_coef_tree (ppl_Linear_Expression_t e, ppl_dimension_type i, tree x)
 116 {
 117   mpz_t v;
 118   mpz_init (v);
 119   tree_int_to_gmp (x, v);
 120   ppl_set_coef_gmp (e, i, v);
 121   mpz_clear (v);
 122 }
 123
 124 /* Sets RES to the max of V1 and V2.  */
 125
 126 static inline void
 127 value_max (mpz_t res, mpz_t v1, mpz_t v2)
 128 {
 129   if (mpz_cmp (v1, v2) < 0)
 130     mpz_set (res, v2);
 131   mpz_set (res, v1);
 132 }
 133
 134 /* Builds a new identity map for dimension DIM.  */
 135
 136 static inline ppl_dimension_type *
 137 ppl_new_id_map (ppl_dimension_type dim)
 138 {
 139   ppl_dimension_type *map, i;
 140
 141   map = (ppl_dimension_type *) XNEWVEC (ppl_dimension_type, dim);
 142
 143   for (i = 0; i < dim; i++)
 144     map[i] = i;
 145
 146   return map;
 147 }
 148
 149 /* Builds an interchange of dimensions A and B in MAP.  */
 150
 151 static inline void
 152 ppl_interchange (ppl_dimension_type *map,
 153                  ppl_dimension_type a,
 154                  ppl_dimension_type b)
 155 {
 156   map[a] = b;
 157   map[b] = a;
 158 }
 159
 160 #endif
 161