gcc/gcc ChangeLog.lno cfgloop.h lambda-code.c ...

[spop at gcc dot gnu dot org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	lno-branch
Changes by:	spop@gcc.gnu.org	2004-06-22 14:12:22

Modified files:
	gcc            : ChangeLog.lno cfgloop.h lambda-code.c 
	                 tree-chrec.c tree-chrec.h tree-data-ref.c 
	                 tree-dg.c tree-elim-check.c tree-fold-const.h 
	                 tree-pretty-print.c tree-scalar-evolution.c 
	                 tree-scalar-evolution.h tree-ssa-loop-ivcanon.c 
	                 tree-ssa-loop-ivopts.c tree-ssa-loop-niter.c 
	                 tree-vectorizer.c tree.def 

Log message:
	* tree-chrec.c, tree-chrec.h, tree-data-ref.c, tree-dg.c,
	tree-elim-check.c, tree-scalar-evolution.c, tree-ssa-loop-niter.c,
	tree-vectorizer.c: Replace chrec_top with chrec_dont_know,
	and chrec_bot with chrec_known.  Replace the checks of chrec_top
	with calls to chrec_contains_undetermined.
	* tree.def (INTERVAL_CHREC): Removed.
	* cfgloop.h (loop): Update comments around nb_iterations field.
	* lambda-code.c (gcc_loop_to_lambda_loop): Always check for
	undetermined chrec after calling number_of_iterations_in_loop.
	* tree-chrec.c (chrec_fold_multiply_ival_cst, chrec_fold_multiply_ival_ival,
	chrec_merge_types, chrec_contains_intervals, chrec_evaluate,
	chrec_merge_intervals): Removed.
	(chrec_fold_plus_1, chrec_fold_plus, chrec_fold_minus,
	chrec_fold_multiply, chrec_merge,
	evolution_function_is_affine_multivariat, chrec_convert):
	Remove uses of INTERVAL_CHREC nodes.
	(chrec_apply): Classify as unknown all the non-affine cases.
	* tree-fold-const.h (tree_fold_binomial): Removed.
	* tree-chrec.h (CHREC_LOW, CHREC_UP,
	chrec_contains_intervals, build_interval_chrec,
	build_chrec_top_type, evolution_function_is_multivariate,
	chrec_should_remain_symbolic): Removed.
	(tree_is_chrec, chrec_zerop, evolution_function_is_affine_p):
	Remove uses of INTERVAL_CHREC nodes.
	* tree-data-ref.c (analyze_ziv_subscript,
	analyze_overlapping_iterations): Same.
	* tree-pretty-print.c (dump_generic_node): Same.
	* tree-scalar-evolution.c (chrec_is_positive,
	instantiate_parameters_1, gather_chrec_stats,
	initialize_scalar_evolutions_analyzer): Same.
	(analyze_scalar_evolution_in_loop): Make it static.
	(resolve_mixers): Fix comments.
	(chrec_stats, reset_chrecs_counters, dump_chrecs_stats):
	Remove nb_interval_chrec counter.
	(chrec_is_positive, simple_iv): Always check for undetermined after
	a call to number_of_iterations_in_loop or analyze_scalar_evolution.
	* tree-ssa-loop-ivcanon.c (canonicalize_loop_induction_variables,
	canonicalize_loop_induction_variables): Same.
	* tree-ssa-loop-ivopts.c (determine_biv_step): Same.
	* tree-ssa-loop-niter.c (find_loop_niter_by_eval): Same.
	(estimate_numbers_of_iterations_loop): Remove redundant call to
	number_of_iterations_in_loop.
	* tree-scalar-evolution.h (analyze_scalar_evolution_in_loop):
	Remove declaration, the function is now static.
	* tree-vectorizer.c (vect_analyze_loop_with_symbolic_num_of_iters):
	Don't test for INTERVAL_CHREC nodes.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.lno.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.198&r2=1.1.2.199
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cfgloop.h.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.2.4.9.2.18&r2=1.2.4.9.2.19
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/lambda-code.c.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.10&r2=1.1.2.11
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-chrec.c.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.26&r2=1.1.2.27
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-chrec.h.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.23&r2=1.1.2.24
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-data-ref.c.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.21&r2=1.1.2.22
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-dg.c.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.10&r2=1.1.2.11
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-elim-check.c.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.9&r2=1.1.2.10
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-fold-const.h.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.8&r2=1.1.2.9
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-pretty-print.c.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.70.2.9&r2=1.1.2.70.2.10
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-scalar-evolution.c.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.59&r2=1.1.2.60
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-scalar-evolution.h.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.14&r2=1.1.2.15
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-loop-ivcanon.c.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.12&r2=1.1.2.13
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-loop-ivopts.c.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.39&r2=1.1.2.40
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-loop-niter.c.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.6&r2=1.1.2.7
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-vectorizer.c.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.43&r2=1.1.2.44
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree.def.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.52.2.21.2.9&r2=1.52.2.21.2.10