cfgloopmanip.c (create_loop_notes): Removed.

	* cfgloopmanip.c (create_loop_notes): Removed.
	* final.c (final_scan_insn): Do not handle loop notes.
	* jump.c (squeeze_notes): Ditto.
	* cfglayout.c (skip_insns_after_block,
	duplicate_insn_chain): Ditto.
	* cfgcleanup.c (rest_of_handle_jump2): Do not call
	create_loop_notes.
	* cfgloop.h (create_loop_notes): Declaration removed.

From-SVN: r112316

1 files changed, 0 insertions, 94 deletions

diff --git a/gcc/cfgloopmanip.c b/gcc/cfgloopmanip.c
index bb7aca0..79c5142 100644
--- a/gcc/cfgloopmanip.c
+++ b/gcc/cfgloopmanip.c
@@ -1275,100 +1275,6 @@ loop_split_edge_with (edge e, rtx insns)
   return new_bb;
 }
 
-/* Uses the natural loop discovery to recreate loop notes.  */
-void
-create_loop_notes (void)
-{
-  rtx insn, head, end;
-  struct loops loops;
-  struct loop *loop;
-  basic_block *first, *last, bb, pbb;
-  struct loop **stack, **top;
-
-#ifdef ENABLE_CHECKING
-  /* Verify that there really are no loop notes.  */
-  for (insn = get_insns (); insn; insn = NEXT_INSN (insn))
-    gcc_assert (!NOTE_P (insn) ||
-		NOTE_LINE_NUMBER (insn) != NOTE_INSN_LOOP_BEG);
-#endif
-
-  flow_loops_find (&loops);
-  free_dominance_info (CDI_DOMINATORS);
-  if (loops.num > 1)
-    {
-      last = XCNEWVEC (basic_block, loops.num);
-
-      FOR_EACH_BB (bb)
-	{
-	  for (loop = bb->loop_father; loop->outer; loop = loop->outer)
-	    last[loop->num] = bb;
-	}
-
-      first = XCNEWVEC (basic_block, loops.num);
-      stack = XCNEWVEC (struct loop *, loops.num);
-      top = stack;
-
-      FOR_EACH_BB (bb)
-	{
-	  for (loop = bb->loop_father; loop->outer; loop = loop->outer)
-	    {
-	      if (!first[loop->num])
-		{
-		  *top++ = loop;
-		  first[loop->num] = bb;
-		}
-
-	      if (bb == last[loop->num])
-		{
-		  /* Prevent loops from overlapping.  */
-		  while (*--top != loop)
-		    last[(*top)->num] = EXIT_BLOCK_PTR;
-
-		  /* If loop starts with jump into it, place the note in
-		     front of the jump.  */
-		  insn = PREV_INSN (BB_HEAD (first[loop->num]));
-		  if (insn
-		      && BARRIER_P (insn))
-		    insn = PREV_INSN (insn);
-		  
-		  if (insn
-		      && JUMP_P (insn)
-		      && any_uncondjump_p (insn)
-		      && onlyjump_p (insn))
-		    {
-		      pbb = BLOCK_FOR_INSN (insn);
-		      gcc_assert (pbb && single_succ_p (pbb));
-
-		      if (!flow_bb_inside_loop_p (loop, single_succ (pbb)))
-			insn = BB_HEAD (first[loop->num]);
-		    }
-		  else
-		    insn = BB_HEAD (first[loop->num]);
-		    
-		  head = BB_HEAD (first[loop->num]);
-		  emit_note_before (NOTE_INSN_LOOP_BEG, insn);
-		  BB_HEAD (first[loop->num]) = head;
-
-		  /* Position the note correctly wrto barrier.  */
-		  insn = BB_END (last[loop->num]);
-		  if (NEXT_INSN (insn)
-		      && BARRIER_P (NEXT_INSN (insn)))
-		    insn = NEXT_INSN (insn);
-		  
-		  end = BB_END (last[loop->num]);
-		  emit_note_after (NOTE_INSN_LOOP_END, insn);
-		  BB_END (last[loop->num]) = end;
-		}
-	    }
-	}
-
-      free (first);
-      free (last);
-      free (stack);
-    }
-  flow_loops_free (&loops);
-}
-
 /* This function is called from loop_version.  It splits the entry edge
    of the loop we want to version, adds the versioning condition, and
    adjust the edges to the two versions of the loop appropriately.