PR middle-end/66820
	* gimplify.c (maybe_fold_stmt): Don't fold in ORT_PARALLEL
	or ORT_TASK contexts.
	* omp-low.c (lower_omp): Call fold_stmt even if taskreg_nesting_level
	is non-zero.

	* gcc.dg/gomp/pr66820.c: New test.

From-SVN: r225661