r180402 - in /trunk/gcc: ChangeLog testsuite/Ch...

[krebbel@gcc.gnu.org]

Author: krebbel
Date: Mon Oct 24 20:14:35 2011
New Revision: 180402

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=180402
Log:
2011-10-24  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* tree-ssa-strlen.c (get_string_length): Change assertion to STPCPY.
	(zero_length_string): Change assertion to accept strinfo without
	length but with stmt instead.
	Set the endptr pointer also if starting a new chain.
	(adjust_related_strinfos): Ignore strinfos marked for delayed
	length computation.
	(handle_builtin_strcpy): Mark earlier strinfo elements also for
	delayed length computation.

2011-10-24  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* gcc.dg/strlenopt-22.c: New testcase.
	* gcc.dg/strlenopt-4.c: Change scan value for s390(x).



Added:
    trunk/gcc/testsuite/gcc.dg/strlenopt-22.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/strlenopt-4.c
    trunk/gcc/tree-ssa-strlen.c