re PR middle-end/78884 ([7/8] ICE when gimplifying VLA in OpenMP SIMD region)

	PR middle-end/78884
	* gimplify.c (struct gimplify_omp_ctx): Add add_safelen1 member.
	(gimplify_bind_expr): If seeing TREE_ADDRESSABLE VLA inside of simd
	loop body, set ctx->add_safelen1 instead of making it GOVD_PRIVATE.
	(gimplify_adjust_omp_clauses): Add safelen (1) clause if
	ctx->add_safelen1 is set.

	* gcc.dg/gomp/pr78884.c: New test.

From-SVN: r273096