diff options
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); } |