PR middle-end/37356
	* tree-inline.c (copy_bb): Insert stmt into copy_basic_block before
	calling gimple_regimplify_operands on it.  Iterate over all newly
	added statements, not just the last one.
	(insert_init_stmt): Insert stmt into seq first, then call
	gimple_regimplify_operands on it.  Don't create new gimplification
	context, nor find referenced vars.

	* g++.dg/tree-ssa/pr37356.C: New test.

Co-Authored-By: Jan Hubicka <jh@suse.cz>

From-SVN: r140177