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tree-into-ssa.c (mark_def_sites_global_data): Make KILLS bitmap a sparse bitmap instead of a simple bitmap. 

* tree-into-ssa.c (mark_def_sites_global_data): Make KILLS
        bitmap a sparse bitmap instead of a simple bitmap.
        (mark_def_sites_initialize_block):  Corresponding changes.
        (ssa_mark_def_sites_initialize_block): Likewise.
        (ssa_mark_phi_uses): Likewise.
        (mark_def_site, ssa_mark_def_sites): Likewise.
        (mark_def_site_blocks): Likewise.
        (rewrite_ssa_into_ssa): Likewise.

From-SVN: r94519
This commit is contained in:
Jeff Law 2005-01-31 22:28:23 -07:00 committed by Jeff Law
parent 5746637cfa
commit 7d793e369d
2 changed files with 27 additions and 18 deletions
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9
gcc/ChangeLog
View File

@ -1,5 +1,14 @@
2005-01-31 Jeff Law <law@redhat.com>
* tree-into-ssa.c (mark_def_sites_global_data): Make KILLS
bitmap a sparse bitmap instead of a simple bitmap.
(mark_def_sites_initialize_block): Corresponding changes.
(ssa_mark_def_sites_initialize_block): Likewise.
(ssa_mark_phi_uses): Likewise.
(mark_def_site, ssa_mark_def_sites): Likewise.
(mark_def_site_blocks): Likewise.
(rewrite_ssa_into_ssa): Likewise.
* tree-ssa-dom.c (record_cond): Pass correct variable type
for last argument to htab_find_slot_with_hash.

36
gcc/tree-into-ssa.c
View File

@ -121,7 +121,7 @@ struct mark_def_sites_global_data
are used in a basic block. We keep it as a global variable
solely to avoid the overhead of allocating and deallocating
the bitmap. */
sbitmap kills;
bitmap kills;
/* Bitmap of names to rename. */
sbitmap names_to_rename;
@ -288,9 +288,9 @@ mark_def_sites_initialize_block (struct dom_walk_data *walk_data,
basic_block bb ATTRIBUTE_UNUSED)
{
struct mark_def_sites_global_data *gd = walk_data->global_data;
sbitmap kills = gd->kills;
bitmap kills = gd->kills;
sbitmap_zero (kills);
bitmap_clear (kills);
}
/* Block initialization routine for mark_def_sites. Clear the
@ -301,11 +301,11 @@ ssa_mark_def_sites_initialize_block (struct dom_walk_data *walk_data,
basic_block bb)
{
struct mark_def_sites_global_data *gd = walk_data->global_data;
sbitmap kills = gd->kills;
bitmap kills = gd->kills;
tree phi, def;
unsigned def_uid;
sbitmap_zero (kills);
bitmap_clear (kills);
for (phi = phi_nodes (bb); phi; phi = PHI_CHAIN (phi))
{
@ -316,7 +316,7 @@ ssa_mark_def_sites_initialize_block (struct dom_walk_data *walk_data,
continue;
set_def_block (def, bb, true, true);
SET_BIT (kills, def_uid);
bitmap_set_bit (kills, def_uid);
}
}
@ -326,7 +326,7 @@ static void
ssa_mark_phi_uses (struct dom_walk_data *walk_data, basic_block bb)
{
struct mark_def_sites_global_data *gd = walk_data->global_data;
sbitmap kills = gd->kills;
bitmap kills = gd->kills;
edge e;
tree phi, use;
unsigned uid;
@ -346,7 +346,7 @@ ssa_mark_phi_uses (struct dom_walk_data *walk_data, basic_block bb)
uid = SSA_NAME_VERSION (use);
if (TEST_BIT (gd->names_to_rename, uid)
&& !TEST_BIT (kills, uid))
&& !bitmap_bit_p (kills, uid))
set_livein_block (use, bb);
}
}
@ -373,7 +373,7 @@ mark_def_sites (struct dom_walk_data *walk_data,
block_stmt_iterator bsi)
{
struct mark_def_sites_global_data *gd = walk_data->global_data;
sbitmap kills = gd->kills;
bitmap kills = gd->kills;
size_t uid;
tree stmt, def;
use_operand_p use_p;
@ -396,7 +396,7 @@ mark_def_sites (struct dom_walk_data *walk_data,
if (prepare_use_operand_for_rename (use_p, &uid))
{
REWRITE_THIS_STMT (stmt) = 1;
if (!TEST_BIT (kills, uid))
if (!bitmap_bit_p (kills, uid))
set_livein_block (USE_FROM_PTR (use_p), bb);
}
}
@ -427,7 +427,7 @@ mark_def_sites (struct dom_walk_data *walk_data,
if (prepare_def_operand_for_rename (def, &uid))
{
set_def_block (def, bb, false, false);
SET_BIT (kills, uid);
bitmap_set_bit (kills, uid);
REWRITE_THIS_STMT (stmt) = 1;
}
}
@ -442,7 +442,7 @@ ssa_mark_def_sites (struct dom_walk_data *walk_data,
block_stmt_iterator bsi)
{
struct mark_def_sites_global_data *gd = walk_data->global_data;
sbitmap kills = gd->kills;
bitmap kills = gd->kills;
size_t uid, def_uid;
tree stmt, use, def;
ssa_op_iter iter;
@ -459,7 +459,7 @@ ssa_mark_def_sites (struct dom_walk_data *walk_data,
uid = SSA_NAME_VERSION (use);
if (TEST_BIT (gd->names_to_rename, uid)
&& !TEST_BIT (kills, uid))
&& !bitmap_bit_p (kills, uid))
set_livein_block (use, bb);
}
@ -472,7 +472,7 @@ ssa_mark_def_sites (struct dom_walk_data *walk_data,
if (TEST_BIT (gd->names_to_rename, def_uid))
{
set_def_block (def, bb, false, true);
SET_BIT (kills, def_uid);
bitmap_set_bit (kills, def_uid);
}
}
}
@ -1521,7 +1521,7 @@ mark_def_site_blocks (void)
/* Notice that this bitmap is indexed using variable UIDs, so it must be
large enough to accommodate all the variables referenced in the
function, not just the ones we are renaming. */
mark_def_sites_global_data.kills = sbitmap_alloc (num_referenced_vars);
mark_def_sites_global_data.kills = BITMAP_XMALLOC ();
walk_data.global_data = &mark_def_sites_global_data;
/* We do not have any local data. */
@ -1537,7 +1537,7 @@ mark_def_site_blocks (void)
fini_walk_dominator_tree (&walk_data);
/* We no longer need this bitmap, clear and free it. */
sbitmap_free (mark_def_sites_global_data.kills);
BITMAP_XFREE (mark_def_sites_global_data.kills);
}
@ -1698,7 +1698,7 @@ rewrite_ssa_into_ssa (void)
set_current_def (ssa_name (i), NULL_TREE);
}
mark_def_sites_global_data.kills = sbitmap_alloc (num_ssa_names);
mark_def_sites_global_data.kills = BITMAP_XMALLOC ();
mark_def_sites_global_data.names_to_rename = snames_to_rename;
walk_data.global_data = &mark_def_sites_global_data;
@ -1717,7 +1717,7 @@ rewrite_ssa_into_ssa (void)
fini_walk_dominator_tree (&walk_data);
/* We no longer need this bitmap, clear and free it. */
sbitmap_free (mark_def_sites_global_data.kills);
BITMAP_XFREE (mark_def_sites_global_data.kills);
/* Insert PHI nodes at dominance frontiers of definition blocks. */
insert_phi_nodes (dfs, to_rename);