2018-11-05  Richard Biener  <rguenther@suse.de>

	* tree-scalar-evolution.h (final_value_replacement_loop): Update
	prototype.
	* tree-scalar-evolution.c (final_value_replacement_loop): Return
	whether anything was done.
	(scev_const_prop): Remove constant propagation part, fold
	remains into ...
	* tree-ssa-loop.c (pass_scev_cprop::execute): ... here.
	(pass_data_scev_cprop): TODO_cleanup_cfg is now done
	conditionally.

	* gcc.dg/pr41488.c: Scan ivcanon dump instead of sccp one.
	* gcc.dg/tree-ssa/scev-7.c: Likewise.

From-SVN: r265795