diff options
Diffstat (limited to 'gcc/tree-vect-loop-manip.c')
| -rw-r--r-- | gcc/tree-vect-loop-manip.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/gcc/tree-vect-loop-manip.c b/gcc/tree-vect-loop-manip.c index e6c297c..9eb8218 100644 --- a/gcc/tree-vect-loop-manip.c +++ b/gcc/tree-vect-loop-manip.c @@ -776,7 +776,7 @@ slpeel_tree_duplicate_loop_to_edge_cfg (struct loop *loop, struct loop *scalar_loop, edge e) { struct loop *new_loop; - basic_block *new_bbs, *bbs; + basic_block *new_bbs, *bbs, *pbbs; bool at_exit; bool was_imm_dom; basic_block exit_dest; @@ -792,12 +792,13 @@ slpeel_tree_duplicate_loop_to_edge_cfg (struct loop *loop, scalar_loop = loop; bbs = XNEWVEC (basic_block, scalar_loop->num_nodes + 1); - get_loop_body_with_size (scalar_loop, bbs, scalar_loop->num_nodes); + pbbs = bbs + 1; + get_loop_body_with_size (scalar_loop, pbbs, scalar_loop->num_nodes); /* Allow duplication of outer loops. */ if (scalar_loop->inner) duplicate_outer_loop = true; /* Check whether duplication is possible. */ - if (!can_copy_bbs_p (bbs, scalar_loop->num_nodes)) + if (!can_copy_bbs_p (pbbs, scalar_loop->num_nodes)) { free (bbs); return NULL; @@ -817,15 +818,15 @@ slpeel_tree_duplicate_loop_to_edge_cfg (struct loop *loop, pre-header unconditionally for this. */ basic_block preheader = split_edge (loop_preheader_edge (scalar_loop)); edge entry_e = single_pred_edge (preheader); - bbs[scalar_loop->num_nodes] = preheader; + bbs[0] = preheader; new_bbs = XNEWVEC (basic_block, scalar_loop->num_nodes + 1); exit = single_exit (scalar_loop); copy_bbs (bbs, scalar_loop->num_nodes + 1, new_bbs, &exit, 1, &new_exit, NULL, - e->src, true); + at_exit ? loop->latch : e->src, true); exit = single_exit (loop); - basic_block new_preheader = new_bbs[scalar_loop->num_nodes]; + basic_block new_preheader = new_bbs[0]; add_phi_args_after_copy (new_bbs, scalar_loop->num_nodes + 1, NULL); |