diff options
Diffstat (limited to 'gcc/tree-vect-loop.c')
| -rw-r--r-- | gcc/tree-vect-loop.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c index 40eccea..0fb2dae 100644 --- a/gcc/tree-vect-loop.c +++ b/gcc/tree-vect-loop.c @@ -5499,19 +5499,22 @@ vect_transform_loop (loop_vec_info loop_vinfo) check_profitability = true; } - /* Peel the loop if there are data refs with unknown alignment. - Only one data ref with unknown store is allowed. */ + /* Version the loop first, if required, so the profitability check + comes first. */ - if (LOOP_PEELING_FOR_ALIGNMENT (loop_vinfo)) + if (LOOP_REQUIRES_VERSIONING_FOR_ALIGNMENT (loop_vinfo) + || LOOP_REQUIRES_VERSIONING_FOR_ALIAS (loop_vinfo)) { - vect_do_peeling_for_alignment (loop_vinfo, th, check_profitability); + vect_loop_versioning (loop_vinfo, th, check_profitability); check_profitability = false; } - if (LOOP_REQUIRES_VERSIONING_FOR_ALIGNMENT (loop_vinfo) - || LOOP_REQUIRES_VERSIONING_FOR_ALIAS (loop_vinfo)) + /* Peel the loop if there are data refs with unknown alignment. + Only one data ref with unknown store is allowed. */ + + if (LOOP_PEELING_FOR_ALIGNMENT (loop_vinfo)) { - vect_loop_versioning (loop_vinfo, th, check_profitability); + vect_do_peeling_for_alignment (loop_vinfo, th, check_profitability); check_profitability = false; } |