rs6000.c (rs6000_mode_dependent_address): Allow any offset from virtual_stack_vars_rt...

rs6000.c (rs6000_mode_dependent_address): Allow any offset from virtual_stack_vars_rtx and arg_pointer_rtx.

gcc/
	* config/rs6000/rs6000.c (rs6000_mode_dependent_address): Allow any
	offset from virtual_stack_vars_rtx and arg_pointer_rtx.
	* config/rs6000/predicates.md (volatile_mem_operand): Use
	offsettable_nonstrict_memref_p.
	* config/rs6000/rs6000.md (*floatsidf2_internal): Remove split check.
	(*floatunssidf2_internal): Likewise.
	(*fix_truncdfsi2_internal): Likewise.
	(*fix_trunctfsi2_internal): Likewise.

From-SVN: r149765