[Bug tree-optimization/22348] [4.0/4.1 Regression] IV canonicalization causes execution of loops past their end condition

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-07-27 14:04 -------
Subject: Bug 22348

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	rakdver@gcc.gnu.org	2005-07-27 14:04:17

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

Log message:
	PR tree-optimize/22348
	* tree-ssa-loop-niter.c (number_of_iterations_cond):
	Fold the partial computation.
	
	* gcc.c-torture/execute/pr22348.c: New.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.9564&r2=2.9565
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-loop-niter.c.diff?cvsroot=gcc&r1=2.33&r2=2.34
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.5828&r2=1.5829
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/pr22348.c.diff?cvsroot=gcc&r1=NONE&r2=1.1



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