2010-01-28  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-ccp.c (ccp_fold_stmt): Fold calls and propagate
	into call arguments.

	* gcc.dg/Wobjsize-1.h: New testcase.
	* gcc.dg/Wobjsize-1.c: Likewise.

From-SVN: r156323