------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-08-01
08:53 -------
Subject: Bug 23109
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: [EMAIL PROTECTED] 2005-08-01 08:53:00
Modified files:
gcc : ChangeLog tree-ssa-loop-im.c
tree-ssa-math-opts.c
Log message:
2005-08-01 Richard Guenther <[EMAIL PROTECTED]>
PR tree-optimization/23109
* tree-ssa-math-opts.c (execute_cse_reciprocals_1):
If trapping math is in effect, use post-dominator information
to check if we'd in any case reach a trapping point before
doing the reciprocal insertion.
(execute_cse_reciprocals): Compute post-dominators, if necessary.
* tree-ssa-loop-im.c (determine_invariantness_stmt): RDIV
expressions are invariant only if trapping math is not in effect.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.9622&r2=2.9623
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-loop-im.c.diff?cvsroot=gcc&r1=2.48&r2=2.49
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-math-opts.c.diff?cvsroot=gcc&r1=2.2&r2=2.3
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23109
