------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-03-01
16:28 -------
Subject: Bug 20216
CVSROOT: /cvs/gcc
Module name: gcc
Branch: gcc-4_0-branch
Changes by: [EMAIL PROTECTED] 2005-03-01 16:27:51
Modified files:
gcc : ChangeLog tree-chrec.c
Log message:
PR tree-optimization/20216
* tree-chrec.c (tree_fold_factorial): Delete.
(tree_fold_binomial): Change argument list to take a return type
and change the type of K to unsigned int. Rewrite to avoid explicit
evaluation of factorials, and (recursively) calling fold to perform
compile-time arithmetic. Return NULL on (internal) overflow.
(chrec_evaluate): Change type of K to an unsigned int. Avoid
calling tree_fold_binomial unnecessarily. Return chrec_dont_know
if any intermediate calculation overflows.
(chrec_apply): Update call to chrec_evaluate.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=2.7592.2.15&r2=2.7592.2.16
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-chrec.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=2.12&r2=2.12.12.1
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20216
