2011-03-16  Richard Guenther  <rguenther@suse.de>

	* gimple-fold.c (maybe_fold_reference): Open-code relevant
	constant folding.  Move MEM_REF canonicalization first.
	Rely on fold_const_aggregate_ref for initializer folding.
	* tree-ssa-ccp.c (ccp_fold): Handle constant vector extracts.

	* gcc.dg/tree-ssa/pr14814.c: Adjust.
	* gcc.dg/tree-ssa/ssa-ccp-19.c: Likewise.

From-SVN: r171043