re PR target/87064 (libgomp.oacc-fortran/reduction-3.f90 fails starting with r263751)

	PR target/87064
	* config/rs6000/vsx.md (*vsx_reduc_<VEC_reduc_name>_v2df_scalar):
	Disable for little endian.

From-SVN: r268164

gcc/ChangeLog

+2019-01-22  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/87064
+	* config/rs6000/vsx.md (*vsx_reduc_<VEC_reduc_name>_v2df_scalar):
+	Disable for little endian.
+
 2019-01-22  Richard Earnshaw  <rearnsha@arm.com>
 
 	PR target/88469

gcc/config/rs6000/vsx.md

@@ -4351,7 +4351,7 @@
 	  (match_dup 1))
 	 (parallel [(const_int 1)])))
    (clobber (match_scratch:DF 2 "=0,0,&wd,&wa"))]
-  "VECTOR_UNIT_VSX_P (V2DFmode)"
+  "BYTES_BIG_ENDIAN && VECTOR_UNIT_VSX_P (V2DFmode)"
   "#"
   ""
   [(const_int 0)]