S/390: Fix rtl standard names for vector unpack low->lo

gcc/ChangeLog:

2017-09-26  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/vector.md ("vec_unpacks_low_v16qi"): Rename to
	vec_unpacks_lo_v16qi.
	("vec_unpacku_low_v16qi"): Rename to vec_unpacku_lo_v16qi.

From-SVN: r253195

gcc/ChangeLog

 2017-09-26  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
 
+	* config/s390/vector.md ("vec_unpacks_low_v16qi"): Rename to
+	vec_unpacks_lo_v16qi.
+	("vec_unpacku_low_v16qi"): Rename to vec_unpacku_lo_v16qi.
+
+2017-09-26  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
+
 	* config/s390/vector.md ("vec_unpacks_lo_v4sf")
 	("vec_unpacks_hi_v4sf", "vec_unpacks_lo_v2df")
 	("vec_unpacks_hi_v2df", "vec_pack_trunc_v2df"): New expanders.

gcc/config/s390/vector.md

@@ -1652,7 +1652,7 @@
   "vuphb\t%0,%1"
   [(set_attr "op_type" "VRR")])
 
-(define_insn "vec_unpacks_low_v16qi"
+(define_insn "vec_unpacks_lo_v16qi"
   [(set (match_operand:V8HI 0 "register_operand" "=v")
 	(sign_extend:V8HI
 	 (vec_select:V8QI
@@ -1676,7 +1676,7 @@
   "vuplhb\t%0,%1"
   [(set_attr "op_type" "VRR")])
 
-(define_insn "vec_unpacku_low_v16qi"
+(define_insn "vec_unpacku_lo_v16qi"
   [(set (match_operand:V8HI 0 "register_operand" "=v")
 	(zero_extend:V8HI
 	 (vec_select:V8QI