backport: re PR tree-optimization/88107 (ICE in find_outermost_region_in_block, at...

backport: re PR tree-optimization/88107 (ICE in find_outermost_region_in_block, at tree-cfg.c:7157)

	Backported from mainline
	2019-02-01  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/88107
	* tree-cfg.c (find_outermost_region_in_block): Add ALL argument,
	instead of assertion that eh_region_outermost is non-NULL, if it
	is NULL, set *ALL to true and return NULL.
	(move_sese_region_to_fn): Adjust caller, if all is set, call
	duplicate_eh_regions with NULL region.

	* gcc.dg/gomp/pr88107.c: New test.

From-SVN: r275095