* unwind-dw2.c (MD_FROB_UPDATE_CONTEXT): Define.
	(uw_update_context_1): Use it.
	* config/rs6000/rs6000.c (insn_after_throw): Remove.
	(rs6000_aix_emit_builtin_unwind_init): Save $r2 to its location
	in parent frame if _Unwind_* called directly instead of through
	.plt.
	(rs6000_emit_eh_toc_restore): Remove.
	(rs6000_emit_prologue): Update stack pointer before doing any saving
	if current_function_calls_eh_return.  Generate unwind info for $r2.
	(rs6000_emit_epilogue): Restore stack pointer after doing all
	restoring if current_function_calls_eh_return.  Restore $r2.
	* config/rs6000/rs6000-protos.h (rs6000_emit_eh_toc_restore): Remove.
	* config/rs6000/rs6000.md (eh_return): Remove call to
	rs6000_emit_eh_toc_restore.
	* config/rs6000/linux64.h (MD_FROB_UPDATE_CONTEXT): Define.
	* config/rs6000/aix.h (MD_FROB_UPDATE_CONTEXT): Define.

	* gcc.dg/cleanup-8.c: New test.
	* gcc.dg/cleanup-9.c: New test.

From-SVN: r69450