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| author | Richard Biener <rguenther@suse.de> | 2013-09-26 13:18:31 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2013-09-26 13:18:31 +0000 |
| commit | a2544177b989c29fe893e55d422c8d9e6f27c6b3 (patch) | |
| tree | 3bd405507fb88ca50d81b2390e2a1e2748dce936 /gcc/tree-ssa-live.c | |
| parent | 6d1ca9a0f323e2de85299910ef0d8bcc9dc7a81d (diff) | |
| download | gcc-a2544177b989c29fe893e55d422c8d9e6f27c6b3.zip gcc-a2544177b989c29fe893e55d422c8d9e6f27c6b3.tar.gz gcc-a2544177b989c29fe893e55d422c8d9e6f27c6b3.tar.bz2 | |
tree-ssa-live.c (var_map_base_init): Handle SSA names with DECL_IGNORED_P base VAR_DECLs like anonymous SSA names.
2013-09-26 Richard Biener <rguenther@suse.de>
* tree-ssa-live.c (var_map_base_init): Handle SSA names with
DECL_IGNORED_P base VAR_DECLs like anonymous SSA names.
(loe_visit_block): Use gcc_checking_assert.
* tree-ssa-coalesce.c (create_outofssa_var_map): Use
gimple_assign_ssa_name_copy_p.
(gimple_can_coalesce_p): Adjust according to the var_map_base_init
change.
* gcc.dg/tree-ssa/coalesce-2.c: New testcase.
From-SVN: r202944
Diffstat (limited to 'gcc/tree-ssa-live.c')
| -rw-r--r-- | gcc/tree-ssa-live.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/tree-ssa-live.c b/gcc/tree-ssa-live.c index c21b2e8..eb36a90 100644 --- a/gcc/tree-ssa-live.c +++ b/gcc/tree-ssa-live.c @@ -104,7 +104,9 @@ var_map_base_init (var_map map) struct tree_int_map **slot; unsigned baseindex; var = partition_to_var (map, x); - if (SSA_NAME_VAR (var)) + if (SSA_NAME_VAR (var) + && (!VAR_P (SSA_NAME_VAR (var)) + || !DECL_IGNORED_P (SSA_NAME_VAR (var)))) m->base.from = SSA_NAME_VAR (var); else /* This restricts what anonymous SSA names we can coalesce @@ -990,9 +992,10 @@ loe_visit_block (tree_live_info_p live, basic_block bb, sbitmap visited, edge_iterator ei; basic_block pred_bb; bitmap loe; - gcc_assert (!bitmap_bit_p (visited, bb->index)); + gcc_checking_assert (!bitmap_bit_p (visited, bb->index)); bitmap_set_bit (visited, bb->index); + loe = live_on_entry (live, bb); FOR_EACH_EDGE (e, ei, bb->preds) |