One of the code refactorings introducing phi node iterators modified the semantics of this code.

One of the code refactorings introducing phi node iterators modified
the semantics of this code.  Revert that change to what was before.

        * graphite-sese-to-poly.c (rewrite_cross_bb_scalar_deps): Point
        iterator to use_stmt.

Co-Authored-By: Sebastian Pop <s.pop@samsung.com>

From-SVN: r225851

gcc/ChangeLog

 2015-07-15  Aditya Kumar  <aditya.k7@samsung.com>
+	    Sebastian Pop  <s.pop@samsung.com>
+
+        * graphite-sese-to-poly.c (rewrite_cross_bb_scalar_deps): Point
+	iterator to use_stmt.
+
+2015-07-15  Aditya Kumar  <aditya.k7@samsung.com>
 	    Sebastian Pop <s.pop@samsung.com>
 
         * graphite-scop-detection.c (build_scops_1): Discard scops for

gcc/graphite-sese-to-poly.c

@@ -2441,10 +2441,10 @@ rewrite_cross_bb_scalar_deps (scop_p scop, gimple_stmt_iterator *gsi)
   handle_scalar_deps_crossing_scop_limits (scop, def, stmt);
 
   FOR_EACH_IMM_USE_STMT (use_stmt, imm_iter, def)
-    if (gimple_code (use_stmt) == GIMPLE_PHI
-	&& (res = true))
+    if (gphi *phi = dyn_cast <gphi *> (use_stmt))
       {
-	gphi_iterator psi = gsi_start_phis (gimple_bb (use_stmt));
+	res = true;
+	gphi_iterator psi = gsi_for_phi (phi);
 
 	if (scalar_close_phi_node_p (gsi_stmt (psi)))
 	  rewrite_close_phi_out_of_ssa (scop, &psi);