diff options
Diffstat (limited to 'gcc/tree-vect-loop-manip.c')
| -rw-r--r-- | gcc/tree-vect-loop-manip.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/gcc/tree-vect-loop-manip.c b/gcc/tree-vect-loop-manip.c index 4c6b8c7..e13d6a2 100644 --- a/gcc/tree-vect-loop-manip.c +++ b/gcc/tree-vect-loop-manip.c @@ -1614,11 +1614,13 @@ slpeel_update_phi_nodes_for_lcssa (struct loop *epilog) Note this function peels prolog and epilog only if it's necessary, as well as guards. + Returns created epilogue or NULL. TODO: Guard for prefer_scalar_loop should be emitted along with versioning conditions if loop versioning is needed. */ -void + +struct loop * vect_do_peeling (loop_vec_info loop_vinfo, tree niters, tree nitersm1, tree *niters_vector, int th, bool check_profitability, bool niters_no_overflow) @@ -1634,7 +1636,7 @@ vect_do_peeling (loop_vec_info loop_vinfo, tree niters, tree nitersm1, || LOOP_VINFO_PEELING_FOR_GAPS (loop_vinfo)); if (!prolog_peeling && !epilog_peeling) - return; + return NULL; prob_vector = 9 * REG_BR_PROB_BASE / 10; if ((vf = LOOP_VINFO_VECT_FACTOR (loop_vinfo)) == 2) @@ -1642,7 +1644,7 @@ vect_do_peeling (loop_vec_info loop_vinfo, tree niters, tree nitersm1, prob_prolog = prob_epilog = (vf - 1) * REG_BR_PROB_BASE / vf; vf = LOOP_VINFO_VECT_FACTOR (loop_vinfo); - struct loop *prolog, *epilog, *loop = LOOP_VINFO_LOOP (loop_vinfo); + struct loop *prolog, *epilog = NULL, *loop = LOOP_VINFO_LOOP (loop_vinfo); struct loop *first_loop = loop; create_lcssa_for_virtual_phi (loop); update_ssa (TODO_update_ssa_only_virtuals); @@ -1824,6 +1826,8 @@ vect_do_peeling (loop_vec_info loop_vinfo, tree niters, tree nitersm1, } adjust_vec.release (); free_original_copy_tables (); + + return epilog; } /* Function vect_create_cond_for_niters_checks. |