S/390: Rename shift_count_or_setmem_operand to setmem_operand

S/390: Rename shift_count_or_setmem_operand to setmem_operand

The shift_count_or_setmem_operand predicate is now only used for
setmem patterns anymore.  Rename it together with the related
functions.

gcc/ChangeLog:

2016-03-11  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/constraints.md: Adjust comment.
	("Y"): Adjust comment.  Rename s390_decompose_shift_count to
	s390_decompose_addrstyle_without_index.
	* config/s390/predicates.md (shift_count_or_setmem_operand):
	Rename to setmem_operand.
	* config/s390/s390-protos.h
	(s390_decompose_shift_count): Rename to
	s390_decompose_addrstyle_without_index.
	* config/s390/s390.c (s390_decompose_shift_count)
	(s390_mem_constraint, print_shift_count_operand)
	(print_operand_address, print_operand): Rename
	s390_decompose_shift_count to
	s390_decompose_addrstyle_without_index and rename
	print_shift_count_operand to print_addrstyle_operand troughout the
	file.
	* config/s390/s390.md ("setmem_long_<P:mode>", "*setmem_long")
	("*setmem_long_and", "*setmem_long_31z", "*setmem_long_and_31z"):
	Rename shift_count_or_setmem_operand to setmem_operand.
	* config/s390/vx-builtins.md ("vec_insert<mode>")
	("vec_promote<mode>"): Replace shift_count_or_setmem_operand with
	nonmemory_operand.

From-SVN: r234132