r133291 - in /trunk/gcc: ChangeLog fold-const.c...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Mon Mar 17 14:34:21 2008
New Revision: 133291

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=133291
Log:
2008-03-17  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/19637
	* fold-const.c (fold_unary): Remove restrictions of removing
	intermediate pointer-conversions (P2)(P1)P0.
	* tree-ssa-ccp.c (maybe_fold_stmt_addition): Recover from
	conversion to void pointer.
	(get_maxval_strlen): Handle addresses of the form &(*p)[0].

	* g++.dg/tree-ssa/pr19637.C: New testcase.

Added:
    trunk/gcc/testsuite/g++.dg/tree-ssa/pr19637.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/fold-const.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-ccp.c