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| author | Bin Cheng <bin.cheng@arm.com> | 2016-10-13 11:00:13 +0000 |
|---|---|---|
| committer | Bin Cheng <amker@gcc.gnu.org> | 2016-10-13 11:00:13 +0000 |
| commit | 3884da6f21ef44778d38b90afc5738ee3d49b4e6 (patch) | |
| tree | d0035ce22c1a765c6219850ca42c1d303c72ddac /gcc/tree-vect-loop-manip.c | |
| parent | 328ba117bab9dfd05bfdde90d3673661d1654e09 (diff) | |
| download | gcc-3884da6f21ef44778d38b90afc5738ee3d49b4e6.zip gcc-3884da6f21ef44778d38b90afc5738ee3d49b4e6.tar.gz gcc-3884da6f21ef44778d38b90afc5738ee3d49b4e6.tar.bz2 | |
tree-vect-loop-manip.c (slpeel_tree_duplicate_loop_to_edge_cfg): Put duplicated loop after its preheader and after the original loop.
* tree-vect-loop-manip.c (slpeel_tree_duplicate_loop_to_edge_cfg): Put
duplicated loop after its preheader and after the original loop.
From-SVN: r241098
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); |