S/390: Add vec_sub_u128 to vecintrin.h

This adds a missing macro to the vecintrin.h header file.

gcc/ChangeLog:

	* config/s390/vecintrin.h (vec_sub_u128): Define missing macro.

From-SVN: r233553

gcc/ChangeLog

 2016-02-19  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
 
+	* config/s390/vecintrin.h (vec_sub_u128): Define missing macro.
+
+2016-02-19  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
+
 	* config/s390/s390.c (s390_expand_vcond): Use the compare operand
 	mode.
 

gcc/config/s390/vecintrin.h

@@ -80,6 +80,7 @@ __lcbb(const void *ptr, int bndry)
 #define vec_checksum __builtin_s390_vcksm
 #define vec_gfmsum_128 __builtin_s390_vgfmg
 #define vec_gfmsum_accum_128 __builtin_s390_vgfmag
+#define vec_sub_u128 __builtin_s390_vsq
 #define vec_subc_u128 __builtin_s390_vscbiq
 #define vec_sube_u128 __builtin_s390_vsbiq
 #define vec_subec_u128 __builtin_s390_vsbcbiq