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Diffstat (limited to 'gcc/tree-scalar-evolution.c')
-rw-r--r-- | gcc/tree-scalar-evolution.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/gcc/tree-scalar-evolution.c b/gcc/tree-scalar-evolution.c new file mode 100644 index 0000000..fc671e3 --- /dev/null +++ b/gcc/tree-scalar-evolution.c @@ -0,0 +1,61 @@ +/* Scalar evolution detector. + Copyright (C) 2003, 2004 Free Software Foundation, Inc. + Contributed by Sebastian Pop <s.pop@laposte.net> + +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 +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 COPYING. If not, write to the Free +Software Foundation, 59 Temple Place - Suite 330, Boston, MA +02111-1307, USA. */ + +#include "config.h" +#include "system.h" +#include "coretypes.h" +#include "tm.h" +#include "errors.h" +#include "ggc.h" +#include "tree.h" +#include "rtl.h" +#include "basic-block.h" +#include "diagnostic.h" +#include "tree-flow.h" +#include "tree-dump.h" +#include "timevar.h" +#include "cfgloop.h" +#include "tree-chrec.h" +#include "tree-scalar-evolution.h" + +/* Analyze all the parameters of the chrec that were left under a + symbolic form. LOOP is the loop in which symbolic names have to + be analyzed and instantiated. */ + +tree +instantiate_parameters (struct loop *loop ATTRIBUTE_UNUSED, + tree chrec) +{ + /* Just a dummy definition for now. */ + return chrec; +} + +/* Checks whether OP behaves as a simple affine iv of LOOP in STMT and returns + its BASE and STEP if possible. */ + +bool +simple_iv (struct loop *loop ATTRIBUTE_UNUSED, tree stmt ATTRIBUTE_UNUSED, + tree op ATTRIBUTE_UNUSED, tree *base ATTRIBUTE_UNUSED, + tree *step ATTRIBUTE_UNUSED) +{ + /* Just a dummy definition for now. */ + return false; +} |