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| author | Richard Biener <rguenther@suse.de> | 2020-10-28 12:59:07 +0100 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2020-10-28 14:15:37 +0100 |
| commit | ac1724ccfdb9056d59fc21500c57c4edc963e653 (patch) | |
| tree | 2219f44303d485c2fb1d4c885d03947a6f2108cd | |
| parent | 72a87d82e0d0741d75c72c8f3d2fc070e3a02b5f (diff) | |
| download | gcc-ac1724ccfdb9056d59fc21500c57c4edc963e653.zip gcc-ac1724ccfdb9056d59fc21500c57c4edc963e653.tar.gz gcc-ac1724ccfdb9056d59fc21500c57c4edc963e653.tar.bz2 | |
dump reason for throwing away SLP instance
This adds dumping to vect_slp_analyze_node_alignment when it fails
an SLP instance due to shared vector type conflicts.
2020-10-28 Richard Biener <rguenther@suse.de>
* tree-vect-data-refs.c (vect_slp_analyze_node_alignment):
Dump when vect_update_shared_vectype fails.
| -rw-r--r-- | gcc/tree-vect-data-refs.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/gcc/tree-vect-data-refs.c b/gcc/tree-vect-data-refs.c index 4abd27e..fd14b48 100644 --- a/gcc/tree-vect-data-refs.c +++ b/gcc/tree-vect-data-refs.c @@ -2428,7 +2428,13 @@ vect_slp_analyze_node_alignment (vec_info *vinfo, slp_tree node) /* We need to commit to a vector type for the group now. */ if (is_a <bb_vec_info> (vinfo) && !vect_update_shared_vectype (first_stmt_info, SLP_TREE_VECTYPE (node))) - return false; + { + if (dump_enabled_p ()) + dump_printf_loc (MSG_MISSED_OPTIMIZATION, vect_location, + "desired vector type conflicts with earlier one " + "for %G", first_stmt_info->stmt); + return false; + } dr_vec_info *dr_info = STMT_VINFO_DR_INFO (first_stmt_info); vect_compute_data_ref_alignment (vinfo, dr_info); |