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-/* Lambda matrix transformations.
- Copyright (C) 2003, 2004, 2007, 2008, 2010 Free Software Foundation, Inc.
- Contributed by Daniel Berlin <dberlin@dberlin.org>.
-
-This file is part of GCC.
-
-GCC is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 3, or (at your option) any later
-version.
-
-GCC is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-for more details.
-
-You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING3. If not see
-<http://www.gnu.org/licenses/>. */
-
-#include "config.h"
-#include "system.h"
-#include "coretypes.h"
-#include "tree-flow.h"
-#include "lambda.h"
-
-/* Allocate a new transformation matrix. */
-
-lambda_trans_matrix
-lambda_trans_matrix_new (int colsize, int rowsize,
- struct obstack * lambda_obstack)
-{
- lambda_trans_matrix ret;
-
- ret = (lambda_trans_matrix)
- obstack_alloc (lambda_obstack, sizeof (struct lambda_trans_matrix_s));
- LTM_MATRIX (ret) = lambda_matrix_new (rowsize, colsize, lambda_obstack);
- LTM_ROWSIZE (ret) = rowsize;
- LTM_COLSIZE (ret) = colsize;
- LTM_DENOMINATOR (ret) = 1;
- return ret;
-}
-
-/* Return true if MAT is an identity matrix. */
-
-bool
-lambda_trans_matrix_id_p (lambda_trans_matrix mat)
-{
- if (LTM_ROWSIZE (mat) != LTM_COLSIZE (mat))
- return false;
- return lambda_matrix_id_p (LTM_MATRIX (mat), LTM_ROWSIZE (mat));
-}
-
-
-/* Compute the inverse of the transformation matrix MAT. */
-
-lambda_trans_matrix
-lambda_trans_matrix_inverse (lambda_trans_matrix mat,
- struct obstack * lambda_obstack)
-{
- lambda_trans_matrix inverse;
- int determinant;
-
- inverse = lambda_trans_matrix_new (LTM_ROWSIZE (mat), LTM_COLSIZE (mat),
- lambda_obstack);
- determinant = lambda_matrix_inverse (LTM_MATRIX (mat), LTM_MATRIX (inverse),
- LTM_ROWSIZE (mat), lambda_obstack);
- LTM_DENOMINATOR (inverse) = determinant;
- return inverse;
-}
-
-
-/* Print out a transformation matrix. */
-
-void
-print_lambda_trans_matrix (FILE *outfile, lambda_trans_matrix mat)
-{
- print_lambda_matrix (outfile, LTM_MATRIX (mat), LTM_ROWSIZE (mat),
- LTM_COLSIZE (mat));
-}