Restore -fopt-info-vec optimized locations for SLP vectorization

[Richard Biener]

The following patch pushes a DUMP_VECT_SCOPE down one level because
it otherwise hides a MSG_OPTIMIZED_LOCATION print.

David - was this an intended effect of the scoping?

Applied to trunk.

Richard.

2018-11-06  Richard Biener  <rguent...@suse.de>

        * tree-vect-slp.c (vect_slp_bb): Move opening of vect_slp_analyze_bb
        dump-scope ...
        (vect_slp_analyze_bb_1): ... here to avoid hiding optimized locations.

diff --git a/gcc/tree-vect-slp.c b/gcc/tree-vect-slp.c
index e7e5d252c00..f802b004bef 100644
--- a/gcc/tree-vect-slp.c
+++ b/gcc/tree-vect-slp.c
@@ -2779,6 +2779,8 @@ vect_slp_analyze_bb_1 (gimple_stmt_iterator region_begin,
                       vec<data_reference_p> datarefs, int n_stmts,
                       bool &fatal, vec_info_shared *shared)
 {
+  DUMP_VECT_SCOPE ("vect_slp_analyze_bb");
+
   bb_vec_info bb_vinfo;
   slp_instance instance;
   int i;
@@ -2949,8 +2951,6 @@ vect_slp_bb (basic_block bb)
   bool any_vectorized = false;
   auto_vector_sizes vector_sizes;
 
-  DUMP_VECT_SCOPE ("vect_slp_analyze_bb");
-
   /* Autodetect first vector size we try.  */
   current_vector_size = 0;
   targetm.vectorize.autovectorize_vector_sizes (&vector_sizes);