spu.c (pad_bb): Do not crash when the last insn is CODE_FOR_blockage.

	* config/spu/spu.c (pad_bb): Do not crash when the last
	insn is CODE_FOR_blockage.

From-SVN: r209029

gcc/ChangeLog

 2014-04-02  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
 
+	* config/spu/spu.c (pad_bb): Do not crash when the last
+	insn is CODE_FOR_blockage.
+
+2014-04-02  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
+
 	* config/spu/spu.md ("insv"): Fail if bitoffset+bitsize
 	lies outside the target mode.
 

gcc/config/spu/spu.c

@@ -2064,7 +2064,7 @@ pad_bb(void)
 	    }
 	  hbr_insn = insn;
 	}
-      if (INSN_CODE (insn) == CODE_FOR_blockage)
+      if (INSN_CODE (insn) == CODE_FOR_blockage && next_insn)
 	{
 	  if (GET_MODE (insn) == TImode)
 	    PUT_MODE (next_insn, TImode);