Committed: arc.md: Remove extra alignment in doloop_begin_i

[Joern Rennecke]

That extra alignment causes some branches to go out of range.

2013-11-14  Joern Rennecke  <joern.renne...@embecosm.com>

        * config/arc/arc.md (doloop_begin_i): Remove extra alignment;
        use (.&-4) idiom.

Index: config/arc/arc.md
===================================================================
--- config/arc/arc.md   (revision 204806)
+++ config/arc/arc.md   (working copy)
@@ -4789,8 +4789,7 @@ (define_insn "doloop_begin_i"
     {
       /* ??? Can do better for when a scratch register
         is known.  But that would require extra testing.  */
-      arc_clear_unalign ();
-      return ".p2align 2\;push_s r0\;add r0,pcl,%4-.+2\;sr r0,[2]; 
LP_START\;add r0,pcl,.L__GCC__LP%1-.+2\;sr r0,[3]; LP_END\;pop_s r0";
+      return "push_s r0\;add r0,pcl,%4-(.&-4)\;sr r0,[2]; LP_START\;add 
r0,pcl,.L__GCC__LP%1-(.&-4)\;sr r0,[3]; LP_END\;pop_s r0";
     }
   /* Check if the loop end is in range to be set by the lp instruction.  */
   size = INTVAL (operands[3]) < 2 ? 0 : 2048;