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tree-flow.h (ssa_names): Change the type to VEC(tree,gc).

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* tree-flow.h (ssa_names): Change the type to VEC(tree,gc).
	(num_ssa_names): Use VEC_length.
	(ssa_names): Use VEC_index.
	* tree-ssanames.c (ssa_names): Change the type to
	VEC(tree,gc).
	(init_ssanames, fini_ssa_names, make_ssanames,
	release_ssa_name): Update uses of ssa_names.

From-SVN: r98843
This commit is contained in:
Kazu Hirata 2005-04-27 15:58:47 +00:00 • committed by Kazu Hirata
parent 2f1105a1b3
commit d2fce91b57
3 changed files with 24 additions and 12 deletions
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10
gcc/ChangeLog
View file

@ -1,3 +1,13 @@
2005-04-27 Kazu Hirata <kazu@cs.umass.edu>
* tree-flow.h (ssa_names): Change the type to VEC(tree,gc).
(num_ssa_names): Use VEC_length.
(ssa_names): Use VEC_index.
* tree-ssanames.c (ssa_names): Change the type to
VEC(tree,gc).
(init_ssanames, fini_ssa_names, make_ssanames,
release_ssa_name): Update uses of ssa_names.
2005-04-27 Devang Patel <dpatel@apple.com>
* dbxout.c (dbxout_type): Check use_gnu_debug_info_extensions.

6
gcc/tree-flow.h
View file

@ -416,10 +416,10 @@ extern GTY(()) varray_type referenced_vars;
#define referenced_var(i) VARRAY_TREE (referenced_vars, i)
/* Array of all SSA_NAMEs used in the function. */
extern GTY(()) varray_type ssa_names;
extern GTY(()) VEC(tree,gc) *ssa_names;
#define num_ssa_names VARRAY_ACTIVE_SIZE (ssa_names)
#define ssa_name(i) VARRAY_TREE (ssa_names, i)
#define num_ssa_names (VEC_length (tree, ssa_names))
#define ssa_name(i) (VEC_index (tree, ssa_names, (i)))
/* Artificial variable used to model the effects of function calls. */
extern GTY(()) tree global_var;

20
gcc/tree-ssanames.c
View file

@ -59,7 +59,7 @@ Boston, MA 02111-1307, USA. */
this is the place to try it. */
/* Array of all SSA_NAMEs used in the function. */
varray_type ssa_names;
VEC(tree,gc) *ssa_names;
/* Free list of SSA_NAMEs. This list is wiped at the end of each function
after we leave SSA form. */
@ -79,13 +79,16 @@ unsigned int ssa_name_nodes_created;
void
init_ssanames (void)
{
VARRAY_TREE_INIT (ssa_names, 50, "ssa_names table");
ssa_names = VEC_alloc (tree, gc, 50);
/* Version 0 is special, so reserve the first slot in the table. Though
currently unused, we may use version 0 in alias analysis as part of
the heuristics used to group aliases when the alias sets are too
large. */
VARRAY_PUSH_TREE (ssa_names, NULL_TREE);
large.
We use VEC_quick_push here because we know that SSA_NAMES has at
least 50 elments reserved in it. */
VEC_quick_push (tree, ssa_names, NULL_TREE);
free_ssanames = NULL;
}
@ -94,8 +97,7 @@ init_ssanames (void)
void
fini_ssanames (void)
{
ggc_free (ssa_names);
ssa_names = NULL;
VEC_free (tree, gc, ssa_names);
free_ssanames = NULL;
}
@ -138,13 +140,13 @@ make_ssa_name (tree var, tree stmt)
/* The node was cleared out when we put it on the free list, so
there is no need to do so again here. */
gcc_assert (ssa_name (SSA_NAME_VERSION (t)) == NULL);
VARRAY_TREE (ssa_names, SSA_NAME_VERSION (t)) = t;
VEC_replace (tree, ssa_names, SSA_NAME_VERSION (t), t);
}
else
{
t = make_node (SSA_NAME);
SSA_NAME_VERSION (t) = num_ssa_names;
VARRAY_PUSH_TREE (ssa_names, t);
VEC_safe_push (tree, gc, ssa_names, t);
#ifdef GATHER_STATISTICS
ssa_name_nodes_created++;
#endif
@ -211,7 +213,7 @@ release_ssa_name (tree var)
while (imm->next != imm)
delink_imm_use (imm->next);
VARRAY_TREE (ssa_names, SSA_NAME_VERSION (var)) = NULL;
VEC_replace (tree, ssa_names, SSA_NAME_VERSION (var), NULL_TREE);
memset (var, 0, tree_size (var));
imm->prev = imm;