As part of the final cleanup of aarch64_internal_mov_immediate a return was accidentally removed.

As part of the final cleanup of aarch64_internal_mov_immediate a return was
accidentally removed.  This causes the 2-instruction case to fallthrough
into the general case even when it found a match.  An example immediate is
0xcccccccccccccccd which was using 2 instructions in GCC5 but now requires 4.
Adding the return fixes the regressions.

2016-02-17  Wilco Dijkstra  <wdijkstr@arm.com>

    gcc/
	* config/aarch64/aarch64.c (aarch64_internal_mov_immediate):
	Add missing return.

From-SVN: r233490

gcc/ChangeLog

+2016-02-17  Wilco Dijkstra  <wdijkstr@arm.com>
+
+	* config/aarch64/aarch64.c (aarch64_internal_mov_immediate):
+	Add missing return.
+
 2016-02-17  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* config/visium/visium.c (machine_libfunc_index): New enum.

gcc/config/aarch64/aarch64.c

@@ -1632,6 +1632,7 @@ aarch64_internal_mov_immediate (rtx dest, rtx imm, bool generate,
 	      emit_insn (gen_insv_immdi (dest, GEN_INT (i),
 					 GEN_INT ((val >> i) & 0xffff)));
 	    }
+	  return 2;
 	}
     }