diff options
| author | Jeff Law <law@gcc.gnu.org> | 2013-06-14 12:52:32 -0600 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 2013-06-14 12:52:32 -0600 |
| commit | e91d0adbc165ca56844bc0f0c8c92782739d75f4 (patch) | |
| tree | 885f6be93528b5d127ff4ebdfff5e4d673b7ab15 /gcc/tree-ssa-live.c | |
| parent | 51b08adabf40a7922771ff4e0c36c8680c082825 (diff) | |
| download | gcc-e91d0adbc165ca56844bc0f0c8c92782739d75f4.zip gcc-e91d0adbc165ca56844bc0f0c8c92782739d75f4.tar.gz gcc-e91d0adbc165ca56844bc0f0c8c92782739d75f4.tar.bz2 | |
gimple.h (gimple_can_coalesce_p): Prototype.
* gimple.h (gimple_can_coalesce_p): Prototype.
* tree-ssa-coalesce.c (gimple_can_coalesce_p): New function.
(create_outofssa_var_map, coalesce_partitions): Use it.
* tree-ssa-uncprop.c (uncprop_into_successor_phis): Similarly.
* tree-ssa-live.c (var_map_base_init): Use TYPE_CANONICAL
if it's available.
* gcc.dg/tree-ssa/coalesce-1.c: New test.
From-SVN: r200103
Diffstat (limited to 'gcc/tree-ssa-live.c')
| -rw-r--r-- | gcc/tree-ssa-live.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/gcc/tree-ssa-live.c b/gcc/tree-ssa-live.c index 83a52a0..a624d00 100644 --- a/gcc/tree-ssa-live.c +++ b/gcc/tree-ssa-live.c @@ -111,8 +111,12 @@ var_map_base_init (var_map map) as it restricts the sets we compute conflicts for. Using TREE_TYPE to generate sets is the easies as type equivalency also holds for SSA names with the same - underlying decl. */ - m->base.from = TREE_TYPE (var); + underlying decl. + + Check gimple_can_coalesce_p when changing this code. */ + m->base.from = (TYPE_CANONICAL (TREE_TYPE (var)) + ? TYPE_CANONICAL (TREE_TYPE (var)) + : TREE_TYPE (var)); /* If base variable hasn't been seen, set it up. */ slot = tree_to_index.find_slot (m, INSERT); if (!*slot) |