r179387 - in /trunk/gcc: ChangeLog testsuite/Ch...

[jakub@gcc.gnu.org]

Author: jakub
Date: Fri Sep 30 14:58:27 2011
New Revision: 179387

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=179387
Log:
	* tree-ssa-structalias.c (find_func_aliases_for_builtin_call): Handle
	BUILT_IN_STRDUP and BUILT_IN_STRNDUP.
	* tree-ssa-alias.c (call_may_clobber_ref_p_1): Likewise.  Fix
	handling of BUILT_IN_STRNCAT and BUILT_IN_STRNCAT_CHK.
	(ref_maybe_used_by_call_p_1): Fix handling of BUILT_IN_STRCAT,
	BUILT_IN_STRNCAT, BUILT_IN_STRCAT_CHK and BUILT_IN_STRNCAT_CHK.

	* gcc.dg/strlenopt-21.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/strlenopt-21.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-alias.c
    trunk/gcc/tree-ssa-structalias.c