* tree-ssa-loop-ivopts.c (iv_value): Avoid invalid sharing on niter.

From-SVN: r87143

gcc/ChangeLog

+2004-09-07  Jan Hubicka  <jh@suse.cz>
+
+	* tree-ssa-loop-ivopts.c (iv_value): Avoid invalid sharing on niter.
+
 2004-09-07  Nathan Sidwell  <nathan@codesourcery.com>
 
 	* builtins.c (fold_builtin_strchr): Use build_int_cst, not

gcc/tree-ssa-loop-ivopts.c

@@ -2908,7 +2908,7 @@ iv_value (struct iv *iv, tree niter)
   tree type = TREE_TYPE (iv->base);
 
   niter = fold_convert (type, niter);
-  val = fold (build2 (MULT_EXPR, type, iv->step, niter));
+  val = fold (build2 (MULT_EXPR, type, iv->step, unsave_expr_now (niter)));
 
   return fold (build2 (PLUS_EXPR, type, iv->base, val));
 }