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r112622 - in /branches/csl/sourcerygxx-4_1: Cha...
- From: pbrook at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Sun, 02 Apr 2006 13:19:16 -0000
- Subject: r112622 - in /branches/csl/sourcerygxx-4_1: Cha...
Author: pbrook
Date: Sun Apr 2 13:19:15 2006
New Revision: 112622
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=112622
Log:
2006-04-02 Paul Brook <paul@codesourcery.com>
Backport form mainline.
* gcc/testsuite/gcc.c-torture/execute/loop-ivopts-3.c: New test.
2006-01-14 Zdenek Dvorak <dvorakz@suse.cz>
* gcc/tree-ssa-loop-niter.c (number_of_iterations_cond): Split into
several functions.
(number_of_iterations_ne, number_of_iterations_lt_to_ne,
assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
number_of_iterations_le): New functions.
(number_of_iterations_special): Removed.
(number_of_iterations_exit): Do not use number_of_iterations_special.
* gcc/tree.c (unsigned_type_for): Always return integer type.
* gcc/testsuite/gcc.dg/tree-ssa/pr19210-1.c: Update outcome.
Add new test loop.
* gcc/testsuite/gcc.dg/tree-ssa/pr19210-2.c: Ditto.
2005-01-06 Zdenek Dvorak <dvorakz@suse.cz>
PR tree-optimization/18527
* gcc/tree-ssa-loop-niter.c (number_of_iterations_cond,
number_of_iterations_special, number_of_iterations_exit):
Move base and step of an iv to a single structure. Add
no_overflow flag, and use it in # of iterations analysis.
* gcc/tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
folded_casts argument.
(simple_iv): Pass base and step in a structure. Set no_overflow
flag.
(scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
Evaluate expensiveness of computing # of iterations instead of
the final expression.
* gcc/tree-scalar-evolution.h (affine_iv): New structure.
(simple_iv): Declaration changed.
* gcc/tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
* gcc/tree-ssa-loop-ivopts.c (determine_biv_step,
find_givs_in_stmt_scev, find_givs_in_stmt): Changed due to simple_iv
change.
Added:
branches/csl/sourcerygxx-4_1/gcc/testsuite/gcc.c-torture/execute/loop-ivopts-3.c
Modified:
branches/csl/sourcerygxx-4_1/ChangeLog.csl
branches/csl/sourcerygxx-4_1/gcc/testsuite/gcc.dg/tree-ssa/pr19210-1.c
branches/csl/sourcerygxx-4_1/gcc/testsuite/gcc.dg/tree-ssa/pr19210-2.c
branches/csl/sourcerygxx-4_1/gcc/tree-chrec.c
branches/csl/sourcerygxx-4_1/gcc/tree-scalar-evolution.c
branches/csl/sourcerygxx-4_1/gcc/tree-scalar-evolution.h
branches/csl/sourcerygxx-4_1/gcc/tree-ssa-loop-ivopts.c
branches/csl/sourcerygxx-4_1/gcc/tree-ssa-loop-niter.c
branches/csl/sourcerygxx-4_1/gcc/tree.c