re PR tree-optimization/52429 (ICE in separate_decls_in_region_debug, at tree-parloops.c:914 with -ftree-parallelize-loops)

	PR tree-optimization/52429
	* tree-parloops.c (separate_decls_in_region_debug): Return early
	if var is LABEL_DECL.

	* gcc.dg/torture/pr52429.c: New test.
	* g++.dg/opt/pr52429.C: New test.

From-SVN: r184665