s390.md ("movstr_short_64", [...]): Merge ...

s390.md ("movstr_short_64", [...]): Merge ...

	* config/s390/s390.md ("movstr_short_64", "movstr_short_31"): Merge ...
	("*movstr_short"): ... into this insn pattern.
	("movstr_short"): New expander.
	("*movstr_long_64"): Rename from "movstr_long_64", simplify.
	("*movstr_long_31"): Rename from "movstr_long_31", simplify.
	("movstr_long"): New expander.
	("clrstr_short_64", "clrstr_short_31"): Merge ...
	("*clrstr_short"): ... into this insn pattern.
	("clrstr_short"): New expander.
	("*clrstr_long_64"): Rename from "clrstr_long_64", simplify.
	("*clrstr_long_31"): Rename from "clrstr_long_31", simplify.
	("clrstr_long"): New expander.
	("cmpmem_short_64", "cmpmem_short_31"): Merge ...
	("*cmpmem_short"): ... into this insn pattern.
	("cmpmem_short"): New expander.
	("*cmpmem_long_64"): Rename from "cmpmem_long_64".
	("*cmpmem_long_31"): Rename from "cmpmem_long_31".
	("cmpmem_long"): New expander.
	* config/s390/s390.c (s390_expand_movstr): Use new expanders.
	(s390_expand_clrstr): Likewise.
	(s390_expand_cmpmem): Likewise.

From-SVN: r72807