[Bug tree-optimization/18431] Code for arrays and pointers are not the same

["cvs-commit at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-11-15 00:18 -------
Subject: Bug 18431

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	rakdver@gcc.gnu.org	2004-11-15 00:18:37

Modified files:
	gcc            : ChangeLog fold-const.c tree-ssa-loop-niter.c 
	                 tree.c tree.h 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.c-torture/execute: 20041114-1.c 

Log message:
	PR tree-optimization/18431
	* fold-const.c (associate_trees): Do not produce x + 0.
	(fold_widened_comparison, fold_sign_changed_comparison): New functions.
	(fold): Use them.
	* tree-ssa-loop-niter.c (upper_bound_in_type, lower_bound_in_type):
	Moved ...
	* tree.c (upper_bound_in_type, lower_bound_in_type): Here.
	* tree.h (upper_bound_in_type, lower_bound_in_type): Declare.
	
	* testsuite/gcc.c-torture/execute/20041114-1.c: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.6340&r2=2.6341
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/fold-const.c.diff?cvsroot=gcc&r1=1.473&r2=1.474
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-loop-niter.c.diff?cvsroot=gcc&r1=2.15&r2=2.16
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree.c.diff?cvsroot=gcc&r1=1.447&r2=1.448
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree.h.diff?cvsroot=gcc&r1=1.654&r2=1.655
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.4602&r2=1.4603
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/20041114-1.c.diff?cvsroot=gcc&r1=NONE&r2=1.1



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18431