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| author | Steven Bosscher <stevenb@suse.de> | 2004-11-12 00:08:41 +0000 |
|---|---|---|
| committer | Steven Bosscher <steven@gcc.gnu.org> | 2004-11-12 00:08:41 +0000 |
| commit | d0ce8e4c9772b478f7ce3088a46c5824c9c83c5a (patch) | |
| tree | 549c93fd7b517405b6cf8a6a87d32d1556f8e140 /gcc/tree-ssa-alias.c | |
| parent | 903676f62fc20f2bf6b7732ad0466f0749b49300 (diff) | |
| download | gcc-d0ce8e4c9772b478f7ce3088a46c5824c9c83c5a.zip gcc-d0ce8e4c9772b478f7ce3088a46c5824c9c83c5a.tar.gz gcc-d0ce8e4c9772b478f7ce3088a46c5824c9c83c5a.tar.bz2 | |
tree-ssa.c (walk_use_def_chains_1): Make the visited map a pointer set instead of a bitmap.
* tree-ssa.c (walk_use_def_chains_1): Make the visited map a
pointer set instead of a bitmap.
(walk_use_def_chains): Create, pass and clean up that pointer_set.
* tree-ssa-alias.c (struct alias_info): Make the ssa_names_visited
field an sbitmap.
(init_alias_info): Allocate and zero it here.
(delete_alias_info): Delete it here.
(collect_points_to_info_for): Use it.
From-SVN: r90508
Diffstat (limited to 'gcc/tree-ssa-alias.c')
| -rw-r--r-- | gcc/tree-ssa-alias.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/gcc/tree-ssa-alias.c b/gcc/tree-ssa-alias.c index 8e42427..2da76ce 100644 --- a/gcc/tree-ssa-alias.c +++ b/gcc/tree-ssa-alias.c @@ -73,7 +73,7 @@ struct alias_info /* SSA names visited while collecting points-to information. If bit I is set, it means that SSA variable with version I has already been visited. */ - bitmap ssa_names_visited; + sbitmap ssa_names_visited; /* Array of SSA_NAME pointers processed by the points-to collector. */ varray_type processed_ptrs; @@ -368,7 +368,8 @@ init_alias_info (void) static bool aliases_computed_p = false; ai = xcalloc (1, sizeof (struct alias_info)); - ai->ssa_names_visited = BITMAP_XMALLOC (); + ai->ssa_names_visited = sbitmap_alloc (num_ssa_names); + sbitmap_zero (ai->ssa_names_visited); VARRAY_TREE_INIT (ai->processed_ptrs, 50, "processed_ptrs"); ai->addresses_needed = BITMAP_XMALLOC (); VARRAY_UINT_INIT (ai->num_references, num_referenced_vars, "num_references"); @@ -449,7 +450,7 @@ delete_alias_info (struct alias_info *ai) { size_t i; - BITMAP_XFREE (ai->ssa_names_visited); + sbitmap_free (ai->ssa_names_visited); ai->processed_ptrs = NULL; BITMAP_XFREE (ai->addresses_needed); @@ -484,9 +485,9 @@ collect_points_to_info_for (struct alias_info *ai, tree ptr) { gcc_assert (POINTER_TYPE_P (TREE_TYPE (ptr))); - if (!bitmap_bit_p (ai->ssa_names_visited, SSA_NAME_VERSION (ptr))) + if (!TEST_BIT (ai->ssa_names_visited, SSA_NAME_VERSION (ptr))) { - bitmap_set_bit (ai->ssa_names_visited, SSA_NAME_VERSION (ptr)); + SET_BIT (ai->ssa_names_visited, SSA_NAME_VERSION (ptr)); walk_use_def_chains (ptr, collect_points_to_info_r, ai, true); VARRAY_PUSH_TREE (ai->processed_ptrs, ptr); } |