PR bootstrap/83396
	PR debug/83391
	* tree-cfgcleanup.c (remove_forwarder_block): Keep after
	labels debug stmts that can only appear after labels.

	* gcc.dg/torture/pr83396.c: New test.
	* g++.dg/torture/pr83391.C: New test.

Co-Authored-By: Jakub Jelinek <jakub@redhat.com>

From-SVN: r255609