Fix ICE when expanding MSA constant vectors with replicated values

gcc/
	* config/mips/mips.c (mips_expand_vector_init): Create
	a const_vector to initialise a vector register instead of
	using a const_int.

From-SVN: r246601

gcc/ChangeLog

+2017-03-30  Matthew Fortune  <matthew.fortune@imgtec.com>
+
+	* config/mips/mips.c (mips_expand_vector_init): Create a const_vector
+	to initialise a vector register instead
+	of using a const_int.
+
 2017-03-30  Jakub Jelinek  <jakub@redhat.com>
 
 	PR translation/80189

gcc/config/mips/mips.c

@@ -21757,11 +21757,12 @@ mips_expand_vector_init (rtx target, rtx vals)
 		case V8HImode:
 		case V4SImode:
 		case V2DImode:
-		  emit_move_insn (target, same);
+		  temp = gen_rtx_CONST_VECTOR (vmode, XVEC (vals, 0));
+		  emit_move_insn (target, temp);
 		  return;
 
 		default:
-		  break;
+		  gcc_unreachable ();
 		}
 	    }
 	  temp = gen_reg_rtx (imode);