re PR target/89578 (5% runtime regression for 481.wrf at -Ofast -flto)

re PR target/89578 (5% runtime regression for 481.wrf at -Ofast -flto)

2019-03-08  Richard Biener  <rguenther@suse.de>

	PR middle-end/89578
	* cfgloop.h (struct loop): Add owned_clique field.
	* cfgloopmanip.c (copy_loop_info): Copy it.
	* tree-cfg.c (gimple_duplicate_bb): Do not remap owned_clique
	cliques.
	* tree-inline.c (copy_loops): Remap owned_clique.
	* lto-streamer-in.c (input_cfg): Stream owned_clique.
	* lto-streamer-out.c (output_cfg): Likewise.

From-SVN: r269484