re PR tree-optimization/57478 (ice in vec.h:815)

2013-05-31  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/57478
	PR tree-optimization/57453
	* tree-vect-slp.c (vect_bb_slp_scalar_cost): Uses in PHI nodes
	are life as well.

From-SVN: r199476

gcc/ChangeLog

+2013-05-31  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/57478
+	PR tree-optimization/57453
+	* tree-vect-slp.c (vect_bb_slp_scalar_cost): Uses in PHI nodes
+	are life as well.
+
 2013-05-31  Kaushik Phatak  <kaushik.phatak@kpitcummins.com>
 
 	* config/rl78/rl78.md (mulqi3,mulhi3): New define_expands.

gcc/tree-vect-slp.c

@@ -1932,7 +1932,8 @@ vect_bb_slp_scalar_cost (basic_block bb,
 	  imm_use_iterator use_iter;
 	  gimple use_stmt;
 	  FOR_EACH_IMM_USE_STMT (use_stmt, use_iter, DEF_FROM_PTR (def_p))
-	    if (gimple_bb (use_stmt) != bb
+	    if (gimple_code (use_stmt) == GIMPLE_PHI
+		|| gimple_bb (use_stmt) != bb
 		|| !STMT_VINFO_VECTORIZABLE (vinfo_for_stmt (use_stmt)))
 	      {
 		life[i] = true;