Avoid unnecessary epilogues from tree_unroll_loop

The following fixes the condition determining whether we need an
epilogue.

	* tree-ssa-loop-manip.cc (determine_exit_conditions): Fix
	no epilogue condition.

diff --git a/gcc/tree-ssa-loop-manip.cc b/gcc/tree-ssa-loop-manip.cc
index 09acc1c94cce4100f91338934b2acbc9e23e2476..4ef27bae51527cf7475b459b41988c576ffcb348 100644 (file)
--- a/gcc/tree-ssa-loop-manip.cc
+++ b/gcc/tree-ssa-loop-manip.cc
@@ -1010,7 +1010,7 @@ determine_exit_conditions (class loop *loop, class tree_niter_desc *desc,
       /* Convert the latch count to an iteration count.  */
       tree niter = fold_build2 (PLUS_EXPR, type, desc->niter,
                                build_one_cst (type));
-      if (multiple_of_p (type, niter, bigstep))
+      if (multiple_of_p (type, niter, build_int_cst (type, factor)))
        return;
     }