* fold-const.c (fold_strip_sign_ops): Handle COMPOUND_EXPR and

	COND_EXPR.

testsuite:
	* gcc.dg/builtins-20.c: Add more cases.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@118802 138bc75d-0d04-0410-961f-82ee72b054a4