2019-07-09  Richard Biener  <rguenther@suse.de>

	* gimple-match.h (gimple_match_op::resimplify): New.
	(gimple_resimplify1, gimple_resimplify2, gimple_resimplify3,
	gimple_resimplify4, gimple_resimplify5): Remove.
	* gimple-match-head.c (gimple_resimplify1, gimple_resimplify2,
	gimple_resimplify3, gimple_resimplify4, gimple_resimplify5):
	Make static.
	(gimple_match_op::resimplify): New.
	* tree-ssa-sccvn.c (vn_nary_build_or_lookup_1): Valueize
	according to availability.  Use gimple_match_op::resimplify.

From-SVN: r273302