[Bug tree-optimization/22348] [4.0 Regression] Execution continues past end of for loop end condition with optimisation enabled

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-09-08 10:09 -------
Subject: Bug 22348

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-4_0-branch
Changes by:	rguenth@gcc.gnu.org	2005-09-08 10:09:04

Modified files:
	gcc            : ChangeLog tree-ssa-loop-niter.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.c-torture/execute: pr22348.c 

Log message:
	2005-09-08  Richard Guenther  <rguenther@suse.de>
	Zdenek Dvorak  <rakdver@gcc.gnu.org>
	
	PR tree-optimization/22348
	* tree-ssa-loop-niter.c (number_of_iterations_cond): Fold
	MINUS_EXPR.
	
	* gcc.c-torture/execute/pr22348.c: New testcase.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=2.7592.2.418&r2=2.7592.2.419
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-loop-niter.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=2.20&r2=2.20.8.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.5084.2.389&r2=1.5084.2.390
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/pr22348.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=NONE&r2=1.1.14.1



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22348