/* Lambda matrix transformations.
- Copyright (C) 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 2003, 2004, 2007 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 2, or (at your option) any later
+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
for more details.
You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+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 "tm.h"
-#include "errors.h"
#include "ggc.h"
#include "tree.h"
#include "target.h"
-#include "varray.h"
#include "lambda.h"
/* Allocate a new transformation matrix. */
{
lambda_trans_matrix ret;
- ret = ggc_alloc (sizeof (*ret));
+ ret = GGC_NEW (struct lambda_trans_matrix_s);
LTM_MATRIX (ret) = lambda_matrix_new (rowsize, colsize);
LTM_ROWSIZE (ret) = rowsize;
LTM_COLSIZE (ret) = colsize;
return ret;
}
-/* Compute the inverse of the transformation. */
+/* 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)