2018-05-05  Tom de Vries  <tom@codesourcery.com>

	PR target/85653
	* config/nvptx/nvptx.c (WORKAROUND_PTXJIT_BUG_3): Define.
	(workaround_barsyncs): New function.
	(nvptx_reorg): Use workaround_barsyncs.
	* config/nvptx/nvptx.md (define_c_enum "unspecv"): Add UNSPECV_MEMBAR.
	(define_expand "nvptx_membar_cta"): New define_expand.
	(define_insn "*nvptx_membar_cta"): New insn.

From-SVN: r259967