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| author | Jan Hubicka <jh@suse.cz> | 2010-06-26 16:45:40 +0200 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2010-06-26 14:45:40 +0000 |
| commit | 8b3057b30d78d0e30ec9f0db8806229bd8f28dfc (patch) | |
| tree | 48fb4136d3d63a84f88676d81afbfd202920e87e /gcc/tree-inline.c | |
| parent | 6bfd4302547d10962648eb1dddd4020cf8017ada (diff) | |
| download | gcc-8b3057b30d78d0e30ec9f0db8806229bd8f28dfc.zip gcc-8b3057b30d78d0e30ec9f0db8806229bd8f28dfc.tar.gz gcc-8b3057b30d78d0e30ec9f0db8806229bd8f28dfc.tar.bz2 | |
ipa-split-2.c: New testcase.
* gcc.dg/tree-ssa/ipa-split-2.c: New testcase.
* ipa-split.c (consider_split): PHI in entry block is OK as long as all
edges comming from header are equivalent.
(visit_bb): Handle PHIs correctly.
* tree-inline.c (copy_phis_for_bb): Be able to copy
PHI from entry edge.
(copy_cfg_body): Produce edge from entry BB before copying
PHIs.
From-SVN: r161433
Diffstat (limited to 'gcc/tree-inline.c')
| -rw-r--r-- | gcc/tree-inline.c | 31 |
1 files changed, 21 insertions, 10 deletions
diff --git a/gcc/tree-inline.c b/gcc/tree-inline.c index f446fa7..a419c26 100644 --- a/gcc/tree-inline.c +++ b/gcc/tree-inline.c @@ -1969,11 +1969,22 @@ copy_phis_for_bb (basic_block bb, copy_body_data *id) = new_phi = create_phi_node (new_res, new_bb); FOR_EACH_EDGE (new_edge, ei, new_bb->preds) { - edge const old_edge - = find_edge ((basic_block) new_edge->src->aux, bb); - tree arg = PHI_ARG_DEF_FROM_EDGE (phi, old_edge); - tree new_arg = arg; + edge old_edge = find_edge ((basic_block) new_edge->src->aux, bb); + tree arg; + tree new_arg; tree block = id->block; + edge_iterator ei2; + + /* When doing partial clonning, we allow PHIs on the entry block + as long as all the arguments are the same. Find any input + edge to see argument to copy. */ + if (!old_edge) + FOR_EACH_EDGE (old_edge, ei2, bb->preds) + if (!old_edge->src->aux) + break; + + arg = PHI_ARG_DEF_FROM_EDGE (phi, old_edge); + new_arg = arg; id->block = NULL_TREE; walk_tree (&new_arg, copy_tree_body_r, id, NULL); id->block = block; @@ -2191,12 +2202,6 @@ copy_cfg_body (copy_body_data * id, gcov_type count, int frequency_scale, || (bb->index > 0 && bitmap_bit_p (blocks_to_copy, bb->index))) need_debug_cleanup |= copy_edges_for_bb (bb, count_scale, exit_block_map); - if (gimple_in_ssa_p (cfun)) - FOR_ALL_BB_FN (bb, cfun_to_copy) - if (!blocks_to_copy - || (bb->index > 0 && bitmap_bit_p (blocks_to_copy, bb->index))) - copy_phis_for_bb (bb, id); - if (new_entry) { edge e; @@ -2205,6 +2210,12 @@ copy_cfg_body (copy_body_data * id, gcov_type count, int frequency_scale, e->count = entry_block_map->count; } + if (gimple_in_ssa_p (cfun)) + FOR_ALL_BB_FN (bb, cfun_to_copy) + if (!blocks_to_copy + || (bb->index > 0 && bitmap_bit_p (blocks_to_copy, bb->index))) + copy_phis_for_bb (bb, id); + FOR_ALL_BB_FN (bb, cfun_to_copy) if (bb->aux) { |