2014-06-18 Richard Biener <rguenther@suse.de>

2014-06-18  Richard Biener  <rguenther@suse.de>

	* tree-pass.h (make_pass_dce_loop): Remove.
	* passes.def: Replace pass_dce_loop with pass_dce.
	* tree-ssa-dce.c (perform_tree_ssa_dce): If something
	changed free niter estimates and reset the scev cache.
	(tree_ssa_dce_loop, pass_data_dce_loop, pass_dce_loop,
	make_pass_dce_loop): Remove.
	* tree-ssa-copy.c: Include tree-ssa-loop-niter.h.
	(fini_copy_prop): Return whether something changed.  Always
	let substitute_and_fold perform DCE and free niter estimates
	and reset the scev cache if so.
	(execute_copy_prop): If sth changed schedule cleanup-cfg.
	(pass_data_copy_prop): Do not unconditionally schedule
	cleanup-cfg or update-ssa.

	* gcc.dg/vect/vect.exp: Remove dump-tree-dceloop-* processing.
	* gcc.dg/vect/dump-tree-dceloop-pr26359.c: Rename to ...
	* gcc.dg/vect/pr26359.c: ... this and adjust appropriately.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@211781 138bc75d-0d04-0410-961f-82ee72b054a4