* cfgloop.h (DLTHE_RECORD_COPY_NUMBER): New flag.

	* cfgloopmanip.c (duplicate_loop_to_header_edge): Set aux flags only
	when asked for.
	* loop-unroll.c (peel_loop_completely, unroll_loop_constant_iterations,
	unroll_loop_runtime_iterations, peel_loop_simple, unroll_loop_stupid):
	Update call of duplicate_loop_to_header_edge.
	(apply_opt_in_copies): Clear out aux pointers.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@101193 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 6 insertions, 5 deletions

diff --git a/gcc/cfgloopmanip.c b/gcc/cfgloopmanip.c
index 9972378a790..d75c7d40962 100644
--- a/gcc/cfgloopmanip.c
+++ b/gcc/cfgloopmanip.c
@@ -982,11 +982,12 @@ duplicate_loop_to_header_edge (struct loop *loop, edge e, struct loops *loops,
       /* Copy bbs.  */
       copy_bbs (bbs, n, new_bbs, spec_edges, 2, new_spec_edges, loop);
 
-      for (i = 0; i < n; i++)
-	{
-	  gcc_assert (!new_bbs[i]->aux);
-	  new_bbs[i]->aux = (void *)(size_t)(j + 1);
-	}
+      if (flags & DLTHE_RECORD_COPY_NUMBER)
+	for (i = 0; i < n; i++)
+	  {
+	    gcc_assert (!new_bbs[i]->aux);
+	    new_bbs[i]->aux = (void *)(size_t)(j + 1);
+	  }
 
       /* Note whether the blocks and edges belong to an irreducible loop.  */
       if (add_irreducible_flag)