PR target/36634
	* config/rs6000/rs6000.md (call, call_value): Don't arrange for
	pic_offset_table_rtx to be marked as used here.
	(call_nonlocal_sysv, call_value_nonlocal_sysv): Add split for
	TARGET_SECURE_PLT to "use" pic_offset_table_rtx.
	(call_nonlocal_sysv_secure, call_value_nonlocal_sysv_secure): New insn.
	(sibcall_nonlocal_sysv, sibcall_value_nonlocal_sysv): Assert
	!TARGET_SECURE_PLT.

From-SVN: r137447