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| author | Richard Guenther <rguenther@suse.de> | 2012-04-24 11:25:21 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2012-04-24 11:25:21 +0000 |
| commit | 7d5a99f479cb1b7237e64e2b3937e5285693911f (patch) | |
| tree | ef4ce734b1b35a32eb1982cd3731b00d43efd4bd /gcc/tree-vect-loop-manip.c | |
| parent | c1041240bf5e2e2b6bd5a6c285fee5c943c8b852 (diff) | |
| download | gcc-7d5a99f479cb1b7237e64e2b3937e5285693911f.zip gcc-7d5a99f479cb1b7237e64e2b3937e5285693911f.tar.gz gcc-7d5a99f479cb1b7237e64e2b3937e5285693911f.tar.bz2 | |
tree-vect-loop-manip.c (vect_do_peeling_for_loop_bound): If the epilogue loop is not re-used as unvectorized version record the its...
2012-04-24 Richard Guenther <rguenther@suse.de>
* tree-vect-loop-manip.c (vect_do_peeling_for_loop_bound): If
the epilogue loop is not re-used as unvectorized version
record the its maximum number of iterations.
From-SVN: r186760
Diffstat (limited to 'gcc/tree-vect-loop-manip.c')
| -rw-r--r-- | gcc/tree-vect-loop-manip.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/tree-vect-loop-manip.c b/gcc/tree-vect-loop-manip.c index 32f57fe..5e5d6ef 100644 --- a/gcc/tree-vect-loop-manip.c +++ b/gcc/tree-vect-loop-manip.c @@ -1966,6 +1966,16 @@ vect_do_peeling_for_loop_bound (loop_vec_info loop_vinfo, tree *ratio, by ratio_mult_vf_name steps. */ vect_update_ivs_after_vectorizer (loop_vinfo, ratio_mult_vf_name, update_e); + if (!LOOP_REQUIRES_VERSIONING_FOR_ALIGNMENT (loop_vinfo) + && !LOOP_REQUIRES_VERSIONING_FOR_ALIAS (loop_vinfo)) + { + int max_iter = MAX (LOOP_VINFO_VECT_FACTOR (loop_vinfo) - 1, (int) th); + record_niter_bound (new_loop, shwi_to_double_int (max_iter), false, true); + if (dump_file && (dump_flags & TDF_DETAILS)) + fprintf (dump_file, "Setting upper bound of nb iterations for epilogue " + "loop to %d\n", max_iter); + } + /* After peeling we have to reset scalar evolution analyzer. */ scev_reset (); |