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tree.c (WALK_SUBTREE): Call walk_tree_1. 

2007-08-20  Richard Guenther  <rguenther@suse.de>

	* tree.c (WALK_SUBTREE): Call walk_tree_1.
	(walk_type_fields): Take lh parameter.
	(walk_tree): Rename to ...
	(walk_tree_1): ... this.  Do not call the walk_subtrees
	langhook but the now passed callback.  Pass lh on recursion.
	(walk_tree_without_duplicates): Rename to ...
	(walk_tree_without_duplicates_1): ... this.  Take lh parameter
	and call walk_tree_1.
	* tree.h (walk_tree_lh): New typedef.
	(walk_tree_1): Declare.
	(walk_tree_without_duplicates_1): Likewise.
	(walk_tree): New define to walk_tree_1 with NULL lh parameter.
	(walk_tree_without_duplicates): New define to
	walk_tree_without_duplicates_1 with NULL lh parameter.
	* langhooks.c (lhd_tree_inlining_walk_subtrees): Remove.
	* langhooks.h (lang_hooks_for_tree_inlining): Remove walk_subtrees
	langhook.
	* langhooks-def.h (lhd_tree_inlining_walk_subtrees): Remove.
	(LANG_HOOKS_TREE_INLINING_WALK_SUBTREES): Likewise.
	(LANG_HOOKS_TREE_INLINING_INITIALIZER): Remove walk_subtrees
	initializer.

	java/
	* lang.c (java_tree_inlining_walk_subtrees): Remove.
	(LANG_HOOKS_TREE_INLINING_WALK_SUBTREES): Remove.

	cp/
	* cp-objcp-common.h (LANG_HOOKS_TREE_INLINING_WALK_SUBTREES):
	Remove define.
	* tree.h (cp_walk_tree): New define to walk_tree_1 with
	cp_walk_subtrees lh parameter.
	(cp_walk_tree_without_duplicates): New define to
	walk_tree_without_duplicates_1 with cp_walk_subtrees lh parameter.
	* tree.c (count_trees): Call
	cp_walk_tree_without_duplicates.
	(verify_stmt_tree): Call cp_walk_tree.
	(break_out_target_exprs): Likewise.
	(WALK_SUBTREE): Likewise.
	* cp-gimplify.c (cp_genericize): Likewise.
	* cp-pt.c (find_parameter_packs_r): Likewise.
	(uses_parameter_packs): Likewise.
	(make_pack_expansion): Likewise.
	(check_for_bare_parameter_packs): Likewise.
	(for_each_template_parm): Likewise.
	* decl.c (check_default_argument): Call
	cp_walk_tree_without_duplicates.
	* except.c (build_throw): Likewise.
	* decl2.c (type_visibility): Likewise.
	* semantics.c (expand_or_defer_fn): Likewise.
	(finalize_nrv): Call cp_walk_tree.

From-SVN: r127642
This commit is contained in:
Richard Guenther 2007-08-20 11:19:22 +00:00 committed by Richard Biener
parent 412bbe81d9
commit 145881069e
18 changed files with 118 additions and 119 deletions
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24
gcc/ChangeLog
View File

@ -1,3 +1,27 @@
2007-08-20 Richard Guenther <rguenther@suse.de>
* tree.c (WALK_SUBTREE): Call walk_tree_1.
(walk_type_fields): Take lh parameter.
(walk_tree): Rename to ...
(walk_tree_1): ... this. Do not call the walk_subtrees
langhook but the now passed callback. Pass lh on recursion.
(walk_tree_without_duplicates): Rename to ...
(walk_tree_without_duplicates_1): ... this. Take lh parameter
and call walk_tree_1.
* tree.h (walk_tree_lh): New typedef.
(walk_tree_1): Declare.
(walk_tree_without_duplicates_1): Likewise.
(walk_tree): New define to walk_tree_1 with NULL lh parameter.
(walk_tree_without_duplicates): New define to
walk_tree_without_duplicates_1 with NULL lh parameter.
* langhooks.c (lhd_tree_inlining_walk_subtrees): Remove.
* langhooks.h (lang_hooks_for_tree_inlining): Remove walk_subtrees
langhook.
* langhooks-def.h (lhd_tree_inlining_walk_subtrees): Remove.
(LANG_HOOKS_TREE_INLINING_WALK_SUBTREES): Likewise.
(LANG_HOOKS_TREE_INLINING_INITIALIZER): Remove walk_subtrees
initializer.
2007-08-20 Andrew Pinski <andrew_pinski@playstation.sony.com>
PR middle-end/30564

26
gcc/cp/ChangeLog
View File

@ -1,3 +1,29 @@
2007-08-20 Richard Guenther <rguenther@suse.de>
* cp-objcp-common.h (LANG_HOOKS_TREE_INLINING_WALK_SUBTREES):
Remove define.
* tree.h (cp_walk_tree): New define to walk_tree_1 with
cp_walk_subtrees lh parameter.
(cp_walk_tree_without_duplicates): New define to
walk_tree_without_duplicates_1 with cp_walk_subtrees lh parameter.
* tree.c (count_trees): Call
cp_walk_tree_without_duplicates.
(verify_stmt_tree): Call cp_walk_tree.
(break_out_target_exprs): Likewise.
(WALK_SUBTREE): Likewise.
* cp-gimplify.c (cp_genericize): Likewise.
* cp-pt.c (find_parameter_packs_r): Likewise.
(uses_parameter_packs): Likewise.
(make_pack_expansion): Likewise.
(check_for_bare_parameter_packs): Likewise.
(for_each_template_parm): Likewise.
* decl.c (check_default_argument): Call
cp_walk_tree_without_duplicates.
* except.c (build_throw): Likewise.
* decl2.c (type_visibility): Likewise.
* semantics.c (expand_or_defer_fn): Likewise.
(finalize_nrv): Call cp_walk_tree.
2007-08-20 Jakub Jelinek <jakub@redhat.com>
PR c++/33025

2
gcc/cp/cp-gimplify.c
View File

@ -746,7 +746,7 @@ cp_genericize (tree fndecl)
/* We do want to see every occurrence of the parms, so we can't just use
walk_tree's hash functionality. */
p_set = pointer_set_create ();
walk_tree (&DECL_SAVED_TREE (fndecl), cp_genericize_r, p_set, NULL);
cp_walk_tree (&DECL_SAVED_TREE (fndecl), cp_genericize_r, p_set, NULL);
pointer_set_destroy (p_set);
/* Do everything else. */

3
gcc/cp/cp-objcp-common.h
View File

@ -104,9 +104,6 @@ extern tree objcp_tsubst_copy_and_build (tree, tree, tsubst_flags_t,
#undef LANG_HOOKS_ATTRIBUTE_TABLE
#define LANG_HOOKS_ATTRIBUTE_TABLE cxx_attribute_table
#undef LANG_HOOKS_TREE_INLINING_WALK_SUBTREES
#define LANG_HOOKS_TREE_INLINING_WALK_SUBTREES \
cp_walk_subtrees
#undef LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN
#define LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN \
cp_cannot_inline_tree_fn

4
gcc/cp/cp-tree.h
View File

@ -4736,6 +4736,10 @@ extern void verify_stmt_tree (tree);
extern linkage_kind decl_linkage (tree);
extern tree cp_walk_subtrees (tree*, int*, walk_tree_fn,
void*, struct pointer_set_t*);
#define cp_walk_tree(a,b,c,d) \
walk_tree_1 (a, b, c, d, cp_walk_subtrees)
#define cp_walk_tree_without_duplicates(a,b,c) \
walk_tree_without_duplicates_1 (a, b, c, cp_walk_subtrees)
extern int cp_cannot_inline_tree_fn (tree*);
extern int cp_auto_var_in_fn_p (const_tree, const_tree);
extern tree fold_if_not_in_template (tree);

3
gcc/cp/decl.c
View File

@ -9061,8 +9061,7 @@ check_default_argument (tree decl, tree arg)
The keyword `this' shall not be used in a default argument of a
member function. */
var = walk_tree_without_duplicates (&arg, local_variable_p_walkfn,
NULL);
var = cp_walk_tree_without_duplicates (&arg, local_variable_p_walkfn, NULL);
if (var)
{
error ("default argument %qE uses local variable %qD", arg, var);

2
gcc/cp/decl2.c
View File

@ -1561,7 +1561,7 @@ static int
type_visibility (tree type)
{
int vis = VISIBILITY_DEFAULT;
walk_tree_without_duplicates (&type, min_vis_r, &vis);
cp_walk_tree_without_duplicates (&type, min_vis_r, &vis);
return vis;
}

2
gcc/cp/except.c
View File

@ -782,7 +782,7 @@ build_throw (tree exp)
we don't have to do them during unwinding. But first wrap
them in MUST_NOT_THROW_EXPR, since they are run after the
exception object is initialized. */
walk_tree_without_duplicates (&temp_expr, wrap_cleanups_r, 0);
cp_walk_tree_without_duplicates (&temp_expr, wrap_cleanups_r, 0);
exp = build2 (COMPOUND_EXPR, TREE_TYPE (exp), temp_expr, exp);
exp = build1 (CLEANUP_POINT_EXPR, TREE_TYPE (exp), exp);
}

34
gcc/cp/pt.c
View File

@ -2391,7 +2391,7 @@ find_parameter_packs_r (tree *tp, int *walk_subtrees, void* data)
if (TYPE_P (t))
{
tree context = TYPE_CONTEXT (t);
walk_tree (&context, &find_parameter_packs_r, ppd, ppd->visited);
cp_walk_tree (&context, &find_parameter_packs_r, ppd, ppd->visited);
}
/* This switch statement will return immediately if we don't find a
@ -2405,8 +2405,8 @@ find_parameter_packs_r (tree *tp, int *walk_subtrees, void* data)
case BOUND_TEMPLATE_TEMPLATE_PARM:
/* Check the template arguments. */
walk_tree (&TYPE_TI_ARGS (t), &find_parameter_packs_r, ppd,
ppd->visited);
cp_walk_tree (&TYPE_TI_ARGS (t), &find_parameter_packs_r, ppd,
ppd->visited);
/* Dig out the underlying TEMPLATE_TEMPLATE_PARM. */
t = TYPE_TI_TEMPLATE (t);
@ -2442,7 +2442,7 @@ find_parameter_packs_r (tree *tp, int *walk_subtrees, void* data)
if (TYPE_TEMPLATE_INFO (t))
{
tree args = TREE_VALUE (TYPE_TEMPLATE_INFO (t));
walk_tree (&args, &find_parameter_packs_r, ppd, ppd->visited);
cp_walk_tree (&args, &find_parameter_packs_r, ppd, ppd->visited);
}
*walk_subtrees = 0;
@ -2462,8 +2462,8 @@ find_parameter_packs_r (tree *tp, int *walk_subtrees, void* data)
return NULL_TREE;
case INTEGER_TYPE:
walk_tree (&TYPE_MAX_VALUE (t), &find_parameter_packs_r,
ppd, ppd->visited);
cp_walk_tree (&TYPE_MAX_VALUE (t), &find_parameter_packs_r,
ppd, ppd->visited);
*walk_subtrees = 0;
return NULL_TREE;
@ -2485,7 +2485,7 @@ uses_parameter_packs (tree t)
struct find_parameter_pack_data ppd;
ppd.parameter_packs = &parameter_packs;
ppd.visited = pointer_set_create ();
walk_tree (&t, &find_parameter_packs_r, &ppd, ppd.visited);
cp_walk_tree (&t, &find_parameter_packs_r, &ppd, ppd.visited);
pointer_set_destroy (ppd.visited);
return parameter_packs != NULL_TREE;
}
@ -2535,8 +2535,8 @@ make_pack_expansion (tree arg)
class expansion. */
ppd.visited = pointer_set_create ();
ppd.parameter_packs = &parameter_packs;
walk_tree (&TREE_PURPOSE (arg), &find_parameter_packs_r,
&ppd, ppd.visited);
cp_walk_tree (&TREE_PURPOSE (arg), &find_parameter_packs_r,
&ppd, ppd.visited);
if (parameter_packs == NULL_TREE)
{
@ -2553,8 +2553,8 @@ make_pack_expansion (tree arg)
{
/* Determine which parameter packs will be expanded in this
argument. */
walk_tree (&TREE_VALUE (value), &find_parameter_packs_r,
&ppd, ppd.visited);
cp_walk_tree (&TREE_VALUE (value), &find_parameter_packs_r,
&ppd, ppd.visited);
}
}
@ -2592,7 +2592,7 @@ make_pack_expansion (tree arg)
/* Determine which parameter packs will be expanded. */
ppd.parameter_packs = &parameter_packs;
ppd.visited = pointer_set_create ();
walk_tree (&arg, &find_parameter_packs_r, &ppd, ppd.visited);
cp_walk_tree (&arg, &find_parameter_packs_r, &ppd, ppd.visited);
pointer_set_destroy (ppd.visited);
/* Make sure we found some parameter packs. */
@ -2637,7 +2637,7 @@ check_for_bare_parameter_packs (tree t)
ppd.parameter_packs = &parameter_packs;
ppd.visited = pointer_set_create ();
walk_tree (&t, &find_parameter_packs_r, &ppd, ppd.visited);
cp_walk_tree (&t, &find_parameter_packs_r, &ppd, ppd.visited);
pointer_set_destroy (ppd.visited);
if (parameter_packs)
@ -5896,10 +5896,10 @@ for_each_template_parm (tree t, tree_fn_t fn, void* data,
pfd.visited = visited;
else
pfd.visited = pointer_set_create ();
result = walk_tree (&t,
for_each_template_parm_r,
&pfd,
pfd.visited) != NULL_TREE;
result = cp_walk_tree (&t,
for_each_template_parm_r,
&pfd,
pfd.visited) != NULL_TREE;
/* Clean up. */
if (!visited)

8
gcc/cp/semantics.c
View File

@ -3184,9 +3184,9 @@ expand_or_defer_fn (tree fn)
}
/* Replace AGGR_INIT_EXPRs with appropriate CALL_EXPRs. */
walk_tree_without_duplicates (&DECL_SAVED_TREE (fn),
simplify_aggr_init_exprs_r,
NULL);
cp_walk_tree_without_duplicates (&DECL_SAVED_TREE (fn),
simplify_aggr_init_exprs_r,
NULL);
/* If this is a constructor or destructor body, we have to clone
it. */
@ -3336,7 +3336,7 @@ finalize_nrv (tree *tp, tree var, tree result)
data.var = var;
data.result = result;
data.visited = htab_create (37, htab_hash_pointer, htab_eq_pointer, NULL);
walk_tree (tp, finalize_nrv_r, &data, 0);
cp_walk_tree (tp, finalize_nrv_r, &data, 0);
htab_delete (data.visited);
}

10
gcc/cp/tree.c
View File

@ -1282,7 +1282,7 @@ int
count_trees (tree t)
{
int n_trees = 0;
walk_tree_without_duplicates (&t, count_trees_r, &n_trees);
cp_walk_tree_without_duplicates (&t, count_trees_r, &n_trees);
return n_trees;
}
@ -1319,7 +1319,7 @@ verify_stmt_tree (tree t)
{
htab_t statements;
statements = htab_create (37, htab_hash_pointer, htab_eq_pointer, NULL);
walk_tree (&t, verify_stmt_tree_r, &statements, NULL);
cp_walk_tree (&t, verify_stmt_tree_r, &statements, NULL);
htab_delete (statements);
}
@ -1521,8 +1521,8 @@ break_out_target_exprs (tree t)
target_remap = splay_tree_new (splay_tree_compare_pointers,
/*splay_tree_delete_key_fn=*/NULL,
/*splay_tree_delete_value_fn=*/NULL);
walk_tree (&t, bot_manip, target_remap, NULL);
walk_tree (&t, bot_replace, target_remap, NULL);
cp_walk_tree (&t, bot_manip, target_remap, NULL);
cp_walk_tree (&t, bot_replace, target_remap, NULL);
if (!--target_remap_count)
{
@ -2290,7 +2290,7 @@ cp_walk_subtrees (tree *tp, int *walk_subtrees_p, walk_tree_fn func,
#define WALK_SUBTREE(NODE) \
do \
{ \
result = walk_tree (&(NODE), func, data, pset); \
result = cp_walk_tree (&(NODE), func, data, pset); \
if (result) goto out; \
} \
while (0)

5
gcc/java/ChangeLog
View File

@ -1,3 +1,8 @@
2007-08-20 Richard Guenther <rguenther@suse.de>
* lang.c (java_tree_inlining_walk_subtrees): Remove.
(LANG_HOOKS_TREE_INLINING_WALK_SUBTREES): Remove.
2007-08-17 Tom Tromey <tromey@redhat.com>
* typeck.c (find_method_in_interfaces): Update.

44
gcc/java/lang.c
View File

@ -55,8 +55,6 @@ static int java_handle_option (size_t scode, const char *arg, int value);
static void put_decl_string (const char *, int);
static void put_decl_node (tree);
static void java_print_error_function (diagnostic_context *, const char *);
static tree java_tree_inlining_walk_subtrees (tree *, int *, walk_tree_fn,
void *, struct pointer_set_t *);
static int merge_init_test_initialization (void * *, void *);
static int inline_init_test_initialization (void * *, void *);
static bool java_dump_tree (void *, tree);
@ -188,9 +186,6 @@ struct language_function GTY(())
#undef LANG_HOOKS_GIMPLIFY_EXPR
#define LANG_HOOKS_GIMPLIFY_EXPR java_gimplify_expr
#undef LANG_HOOKS_TREE_INLINING_WALK_SUBTREES
#define LANG_HOOKS_TREE_INLINING_WALK_SUBTREES java_tree_inlining_walk_subtrees
#undef LANG_HOOKS_DECL_OK_FOR_SIBCALL
#define LANG_HOOKS_DECL_OK_FOR_SIBCALL java_decl_ok_for_sibcall
@ -688,45 +683,6 @@ decl_constant_value (tree decl)
return decl;
}
/* Walk the language specific tree nodes during inlining. */
static tree
java_tree_inlining_walk_subtrees (tree *tp ATTRIBUTE_UNUSED,
int *subtrees ATTRIBUTE_UNUSED,
walk_tree_fn func ATTRIBUTE_UNUSED,
void *data ATTRIBUTE_UNUSED,
struct pointer_set_t *pset ATTRIBUTE_UNUSED)
{
enum tree_code code;
tree result;
#define WALK_SUBTREE(NODE) \
do \
{ \
result = walk_tree (&(NODE), func, data, pset); \
if (result) \
return result; \
} \
while (0)
tree t = *tp;
if (!t)
return NULL_TREE;
code = TREE_CODE (t);
switch (code)
{
case BLOCK:
WALK_SUBTREE (BLOCK_EXPR_BODY (t));
return NULL_TREE;
default:
return NULL_TREE;
}
#undef WALK_SUBTREE
}
/* Every call to a static constructor has an associated boolean
variable which is in the outermost scope of the calling method.
This variable is used to avoid multiple calls to the static

4
gcc/langhooks-def.h
View File

@ -68,8 +68,6 @@ extern tree lhd_expr_to_decl (tree, bool *, bool *, bool *);
extern tree lhd_builtin_function (tree decl);
/* Declarations of default tree inlining hooks. */
extern tree lhd_tree_inlining_walk_subtrees (tree *, int *, walk_tree_fn,
void *, struct pointer_set_t*);
extern int lhd_tree_inlining_cannot_inline_tree_fn (tree *);
extern int lhd_tree_inlining_disregard_inline_limits (const_tree);
extern int lhd_tree_inlining_auto_var_in_fn_p (const_tree, const_tree);
@ -135,7 +133,6 @@ extern void lhd_omp_firstprivatize_type_sizes (struct gimplify_omp_ctx *,
#define LANG_HOOKS_FORMAT_ATTRIBUTE_TABLE NULL
/* Tree inlining hooks. */
#define LANG_HOOKS_TREE_INLINING_WALK_SUBTREES lhd_tree_inlining_walk_subtrees
#define LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN \
lhd_tree_inlining_cannot_inline_tree_fn
#define LANG_HOOKS_TREE_INLINING_DISREGARD_INLINE_LIMITS \
@ -146,7 +143,6 @@ extern void lhd_omp_firstprivatize_type_sizes (struct gimplify_omp_ctx *,
hook_bool_tree_tree_false
#define LANG_HOOKS_TREE_INLINING_INITIALIZER { \
LANG_HOOKS_TREE_INLINING_WALK_SUBTREES, \
LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN, \
LANG_HOOKS_TREE_INLINING_DISREGARD_INLINE_LIMITS, \
LANG_HOOKS_TREE_INLINING_AUTO_VAR_IN_FN_P, \

21
gcc/langhooks.c
View File

@ -276,27 +276,6 @@ lhd_types_compatible_p (tree x, tree y)
return TYPE_MAIN_VARIANT (x) == TYPE_MAIN_VARIANT (y);
}
/* lang_hooks.tree_inlining.walk_subtrees is called by walk_tree()
after handling common cases, but before walking code-specific
sub-trees. If this hook is overridden for a language, it should
handle language-specific tree codes, as well as language-specific
information associated to common tree codes. If a tree node is
completely handled within this function, it should set *SUBTREES to
0, so that generic handling isn't attempted. The generic handling
cannot deal with language-specific tree codes, so make sure it is
set properly. Both SUBTREES and *SUBTREES is guaranteed to be
nonzero when the function is called. */
tree
lhd_tree_inlining_walk_subtrees (tree *tp ATTRIBUTE_UNUSED,
int *subtrees ATTRIBUTE_UNUSED,
walk_tree_fn func ATTRIBUTE_UNUSED,
void *data ATTRIBUTE_UNUSED,
struct pointer_set_t *pset ATTRIBUTE_UNUSED)
{
return NULL_TREE;
}
/* lang_hooks.tree_inlining.cannot_inline_tree_fn is called to
determine whether there are language-specific reasons for not
inlining a given function. */

3
gcc/langhooks.h
View File

@ -35,9 +35,6 @@ typedef void (*lang_print_tree_hook) (FILE *, tree, int indent);
struct lang_hooks_for_tree_inlining
{
tree (*walk_subtrees) (tree *, int *,
tree (*) (tree *, int *, void *),
void *, struct pointer_set_t*);
int (*cannot_inline_tree_fn) (tree *);
int (*disregard_inline_limits) (const_tree);
int (*auto_var_in_fn_p) (const_tree, const_tree);

26
gcc/tree.c
View File

@ -8233,7 +8233,7 @@ num_ending_zeros (const_tree x)
#define WALK_SUBTREE(NODE) \
do \
{ \
result = walk_tree (&(NODE), func, data, pset); \
result = walk_tree_1 (&(NODE), func, data, pset, lh); \
if (result) \
return result; \
} \
@ -8245,7 +8245,7 @@ num_ending_zeros (const_tree x)
static tree
walk_type_fields (tree type, walk_tree_fn func, void *data,
struct pointer_set_t *pset)
struct pointer_set_t *pset, walk_tree_lh lh)
{
tree result = NULL_TREE;
@ -8325,7 +8325,8 @@ walk_type_fields (tree type, walk_tree_fn func, void *data,
and to avoid visiting a node more than once. */
tree
walk_tree (tree *tp, walk_tree_fn func, void *data, struct pointer_set_t *pset)
walk_tree_1 (tree *tp, walk_tree_fn func, void *data,
struct pointer_set_t *pset, walk_tree_lh lh)
{
enum tree_code code;
int walk_subtrees;
@ -8372,10 +8373,12 @@ walk_tree (tree *tp, walk_tree_fn func, void *data, struct pointer_set_t *pset)
return NULL_TREE;
}
result = lang_hooks.tree_inlining.walk_subtrees (tp, &walk_subtrees, func,
data, pset);
if (result || !walk_subtrees)
return result;
if (lh)
{
result = (*lh) (tp, &walk_subtrees, func, data, pset);
if (result || !walk_subtrees)
return result;
}
switch (code)
{
@ -8529,7 +8532,7 @@ walk_tree (tree *tp, walk_tree_fn func, void *data, struct pointer_set_t *pset)
if (result || !walk_subtrees)
return result;
result = walk_type_fields (*type_p, func, data, pset);
result = walk_type_fields (*type_p, func, data, pset, lh);
if (result)
return result;
@ -8594,7 +8597,7 @@ walk_tree (tree *tp, walk_tree_fn func, void *data, struct pointer_set_t *pset)
}
/* If this is a type, walk the needed fields in the type. */
else if (TYPE_P (*tp))
return walk_type_fields (*tp, func, data, pset);
return walk_type_fields (*tp, func, data, pset, lh);
break;
}
@ -8608,13 +8611,14 @@ walk_tree (tree *tp, walk_tree_fn func, void *data, struct pointer_set_t *pset)
/* Like walk_tree, but does not walk duplicate nodes more than once. */
tree
walk_tree_without_duplicates (tree *tp, walk_tree_fn func, void *data)
walk_tree_without_duplicates_1 (tree *tp, walk_tree_fn func, void *data,
walk_tree_lh lh)
{
tree result;
struct pointer_set_t *pset;
pset = pointer_set_create ();
result = walk_tree (tp, func, data, pset);
result = walk_tree_1 (tp, func, data, pset, lh);
pointer_set_destroy (pset);
return result;
}

16
gcc/tree.h
View File

@ -5026,8 +5026,20 @@ struct pointer_set_t;
/* The type of a callback function for walking over tree structure. */
typedef tree (*walk_tree_fn) (tree *, int *, void *);
extern tree walk_tree (tree*, walk_tree_fn, void*, struct pointer_set_t*);
extern tree walk_tree_without_duplicates (tree*, walk_tree_fn, void*);
/* The type of a callback function that represents a custom walk_tree. */
typedef tree (*walk_tree_lh) (tree *, int *, tree (*) (tree *, int *, void *),
void *, struct pointer_set_t*);
extern tree walk_tree_1 (tree*, walk_tree_fn, void*, struct pointer_set_t*,
walk_tree_lh);
extern tree walk_tree_without_duplicates_1 (tree*, walk_tree_fn, void*,
walk_tree_lh);
#define walk_tree(a,b,c,d) \
walk_tree_1 (a, b, c, d, NULL)
#define walk_tree_without_duplicates(a,b,c) \
walk_tree_without_duplicates_1 (a, b, c, NULL)
/* Assign the RTX to declaration. */