[PATCH] Fix PRs 57478 / 57453

[Richard Biener]

The following fixes the bug I already fixed more thoroughly.

Tested on x86_64-unknown-linux-gnu, committed as obvious.

Richard.

2013-05-31  Richard Biener  <rguent...@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.

Index: gcc/tree-vect-slp.c
===================================================================
--- gcc/tree-vect-slp.c (revision 199403)
+++ gcc/tree-vect-slp.c (working copy)
@@ -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;