PR libgomp/58756
	* omp-low.c (lower_rec_input_clauses) <case OMP_CLAUSE_REDUCTION>: For
	reductions without placeholder if is_simd, but when not using
	GOMP_SIMD* internal calls, also perform the reduction operation
	on the outer var rather than simple assignment.

	* testsuite/libgomp.c/pr58756.c: New test.

From-SVN: r206011