62 lines
1.8 KiB
C
62 lines
1.8 KiB
C
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/* Scalar evolution detector.
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Copyright (C) 2003, 2004 Free Software Foundation, Inc.
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Contributed by Sebastian Pop <s.pop@laposte.net>
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING. If not, write to the Free
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Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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#include "config.h"
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#include "system.h"
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#include "coretypes.h"
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#include "tm.h"
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#include "errors.h"
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#include "ggc.h"
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#include "tree.h"
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#include "rtl.h"
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#include "basic-block.h"
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#include "diagnostic.h"
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#include "tree-flow.h"
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#include "tree-dump.h"
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#include "timevar.h"
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#include "cfgloop.h"
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#include "tree-chrec.h"
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#include "tree-scalar-evolution.h"
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/* Analyze all the parameters of the chrec that were left under a
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symbolic form. LOOP is the loop in which symbolic names have to
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be analyzed and instantiated. */
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tree
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instantiate_parameters (struct loop *loop ATTRIBUTE_UNUSED,
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tree chrec)
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{
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/* Just a dummy definition for now. */
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return chrec;
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}
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/* Checks whether OP behaves as a simple affine iv of LOOP in STMT and returns
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its BASE and STEP if possible. */
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bool
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simple_iv (struct loop *loop ATTRIBUTE_UNUSED, tree stmt ATTRIBUTE_UNUSED,
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tree op ATTRIBUTE_UNUSED, tree *base ATTRIBUTE_UNUSED,
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tree *step ATTRIBUTE_UNUSED)
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{
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/* Just a dummy definition for now. */
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return false;
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}
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