* doloop.c: Removed.

	* loop-doloop.c: New file.
	* Makefile.in (doloop.o): Remove.
	(loop-doloop.o): New.
	* cfgloop.h (get_loop_level, doloop_optimize_loops): Declare.
	* cfgloopanal.c (get_loop_level): New function.
	* loop-iv.c (iv_number_of_iterations): Handle case when loop
	is leaved immediatelly.
	* loop.c (strength_reduce): Do not call doloop optimization.
	* loop.h (LOOP_BCT): Removed.
	* passes.c (rest_of_handle_loop_optimize): Do not use LOOP_BCT.
	(rest_of_handle_loop2): Call doloop_optimize_loops.
	(rest_of_compilation): Test for optimizations moved to
	rest_of_handle_loop2.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@79625 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 0 insertions, 17 deletions

diff --git a/gcc/loop.c b/gcc/loop.c
index 5d458cbabc8..1b488fe5dbc 100644
--- a/gcc/loop.c
+++ b/gcc/loop.c
@@ -5352,23 +5352,6 @@ strength_reduce (struct loop *loop, int flags)
 	  && unrolled_insn_copies <= insn_count))
     unroll_loop (loop, insn_count, 1);
 
-#ifdef HAVE_doloop_end
-  if (HAVE_doloop_end && (flags & LOOP_BCT) && flag_branch_on_count_reg)
-    doloop_optimize (loop);
-#endif  /* HAVE_doloop_end  */
-
-  /* In case number of iterations is known, drop branch prediction note
-     in the branch.  Do that only in second loop pass, as loop unrolling
-     may change the number of iterations performed.  */
-  if (flags & LOOP_BCT)
-    {
-      unsigned HOST_WIDE_INT n
-	= loop_info->n_iterations / loop_info->unroll_number;
-      if (n > 1)
-	predict_insn (prev_nonnote_insn (loop->end), PRED_LOOP_ITERATIONS,
-		      REG_BR_PROB_BASE - REG_BR_PROB_BASE / n);
-    }
-
   if (loop_dump_stream)
     fprintf (loop_dump_stream, "\n");