PR middle-end/27337

	* gimplify.c (gimplify_scan_omp_clauses): Handle INDIRECT_REF
	around RESULT_DECL for result passed by reference.
	(gimplify_expr): Call omp_notice_variable when RESULT_DECL is seen.
	* omp-low.c (use_pointer_for_field): Don't look at
	DECL_HAS_VALUE_EXPR_P for RESULT_DECLs.
	(scan_omp_1): Call remap_decl on RESULT_DECLs.
	(lower_rec_input_clauses): Don't allocate VLA memory for the second
	time or var for passing by reference for
	OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE clauses.  Allow creation of
	TREE_ADDRESSABLE variables when passing by reference.

	* omp-low.c (dump_omp_region): Fix output formatting.
cp/
	* cp-gimplify.c (cxx_omp_privatize_by_reference): New function.
	* cp-tree.h (cxx_omp_privatize_by_reference): New prototype.
	* cp-objcp-common.h (LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE): Define.
testsuite/
	* g++.dg/gomp/pr27337-1.C: New test.
	* g++.dg/gomp/pr27337-2.C: New test.
libgomp/
	* testsuite/libgomp.c++/pr27337.C: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@113456 138bc75d-0d04-0410-961f-82ee72b054a4