2017-10-30  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/82762
	Revert
	2017-10-23  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/82129
	Revert
	2017-08-01  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/81181
	* tree-ssa-pre.c (compute_antic_aux): Defer clean() to ...
	(compute_antic): ... end of iteration here.

	* gcc.dg/torture/pr82762.c: New testcase.

From-SVN: r254218