You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA. */
/* This file contains the low level primitives for operating on tree nodes,
including allocation, list operations, interning of identifiers,
"binfos",
"phi_nodes",
"ssa names",
+ "constructors",
"random kinds",
"lang_decl kinds",
"lang_type kinds"
static GTY ((if_marked ("ggc_marked_p"), param_is (union tree_node)))
htab_t int_cst_hash_table;
+/* General tree->tree mapping structure for use in hash tables. */
+
+
+static GTY ((if_marked ("tree_map_marked_p"), param_is (struct tree_map)))
+ htab_t debug_expr_for_decl;
+
+static GTY ((if_marked ("tree_map_marked_p"), param_is (struct tree_map)))
+ htab_t value_expr_for_decl;
+
+static GTY ((if_marked ("tree_int_map_marked_p"), param_is (struct tree_int_map)))
+ htab_t init_priority_for_decl;
+
+struct tree_int_map GTY(())
+{
+ tree from;
+ unsigned short to;
+};
+static unsigned int tree_int_map_hash (const void *);
+static int tree_int_map_eq (const void *, const void *);
+static int tree_int_map_marked_p (const void *);
static void set_type_quals (tree, int);
static int type_hash_eq (const void *, const void *);
static hashval_t type_hash_hash (const void *);
static hashval_t int_cst_hash_hash (const void *);
static int int_cst_hash_eq (const void *, const void *);
static void print_type_hash_statistics (void);
+static void print_debug_expr_statistics (void);
+static void print_value_expr_statistics (void);
static tree make_vector_type (tree, int, enum machine_mode);
static int type_hash_marked_p (const void *);
static unsigned int type_hash_list (tree, hashval_t);
tree global_trees[TI_MAX];
tree integer_types[itk_none];
+
+unsigned char tree_contains_struct[256][64];
\f
/* Init tree.c. */
void
init_ttree (void)
{
+
/* Initialize the hash table of types. */
type_hash_table = htab_create_ggc (TYPE_HASH_INITIAL_SIZE, type_hash_hash,
type_hash_eq, 0);
+
+ debug_expr_for_decl = htab_create_ggc (512, tree_map_hash,
+ tree_map_eq, 0);
+
+ value_expr_for_decl = htab_create_ggc (512, tree_map_hash,
+ tree_map_eq, 0);
+ init_priority_for_decl = htab_create_ggc (512, tree_int_map_hash,
+ tree_int_map_eq, 0);
+
int_cst_hash_table = htab_create_ggc (1024, int_cst_hash_hash,
int_cst_hash_eq, NULL);
+
int_cst_node = make_node (INTEGER_CST);
+
+ tree_contains_struct[FUNCTION_DECL][TS_DECL_NON_COMMON] = 1;
+ tree_contains_struct[TRANSLATION_UNIT_DECL][TS_DECL_NON_COMMON] = 1;
+ tree_contains_struct[TYPE_DECL][TS_DECL_NON_COMMON] = 1;
+
+
+ tree_contains_struct[CONST_DECL][TS_DECL_COMMON] = 1;
+ tree_contains_struct[VAR_DECL][TS_DECL_COMMON] = 1;
+ tree_contains_struct[PARM_DECL][TS_DECL_COMMON] = 1;
+ tree_contains_struct[RESULT_DECL][TS_DECL_COMMON] = 1;
+ tree_contains_struct[FUNCTION_DECL][TS_DECL_COMMON] = 1;
+ tree_contains_struct[TYPE_DECL][TS_DECL_COMMON] = 1;
+ tree_contains_struct[TRANSLATION_UNIT_DECL][TS_DECL_COMMON] = 1;
+ tree_contains_struct[LABEL_DECL][TS_DECL_COMMON] = 1;
+ tree_contains_struct[FIELD_DECL][TS_DECL_COMMON] = 1;
+
+
+ tree_contains_struct[CONST_DECL][TS_DECL_WRTL] = 1;
+ tree_contains_struct[VAR_DECL][TS_DECL_WRTL] = 1;
+ tree_contains_struct[PARM_DECL][TS_DECL_WRTL] = 1;
+ tree_contains_struct[RESULT_DECL][TS_DECL_WRTL] = 1;
+ tree_contains_struct[FUNCTION_DECL][TS_DECL_WRTL] = 1;
+ tree_contains_struct[LABEL_DECL][TS_DECL_WRTL] = 1;
+
+ tree_contains_struct[CONST_DECL][TS_DECL_MINIMAL] = 1;
+ tree_contains_struct[VAR_DECL][TS_DECL_MINIMAL] = 1;
+ tree_contains_struct[PARM_DECL][TS_DECL_MINIMAL] = 1;
+ tree_contains_struct[RESULT_DECL][TS_DECL_MINIMAL] = 1;
+ tree_contains_struct[FUNCTION_DECL][TS_DECL_MINIMAL] = 1;
+ tree_contains_struct[TYPE_DECL][TS_DECL_MINIMAL] = 1;
+ tree_contains_struct[TRANSLATION_UNIT_DECL][TS_DECL_MINIMAL] = 1;
+ tree_contains_struct[LABEL_DECL][TS_DECL_MINIMAL] = 1;
+ tree_contains_struct[FIELD_DECL][TS_DECL_MINIMAL] = 1;
+
+ tree_contains_struct[VAR_DECL][TS_DECL_WITH_VIS] = 1;
+ tree_contains_struct[FUNCTION_DECL][TS_DECL_WITH_VIS] = 1;
+ tree_contains_struct[TYPE_DECL][TS_DECL_WITH_VIS] = 1;
+ tree_contains_struct[TRANSLATION_UNIT_DECL][TS_DECL_WITH_VIS] = 1;
+
+ tree_contains_struct[VAR_DECL][TS_VAR_DECL] = 1;
+ tree_contains_struct[FIELD_DECL][TS_FIELD_DECL] = 1;
+ tree_contains_struct[PARM_DECL][TS_PARM_DECL] = 1;
+ tree_contains_struct[LABEL_DECL][TS_LABEL_DECL] = 1;
+ tree_contains_struct[RESULT_DECL][TS_RESULT_DECL] = 1;
+ tree_contains_struct[CONST_DECL][TS_CONST_DECL] = 1;
+ tree_contains_struct[TYPE_DECL][TS_TYPE_DECL] = 1;
+ tree_contains_struct[FUNCTION_DECL][TS_FUNCTION_DECL] = 1;
+
+ lang_hooks.init_ts ();
}
\f
{
if (!DECL_ASSEMBLER_NAME_SET_P (decl))
lang_hooks.set_decl_assembler_name (decl);
- return DECL_CHECK (decl)->decl.assembler_name;
+ return DECL_WITH_VIS_CHECK (decl)->decl_with_vis.assembler_name;
}
/* Compute the number of bytes occupied by a tree with code CODE.
switch (TREE_CODE_CLASS (code))
{
case tcc_declaration: /* A decl node */
- return sizeof (struct tree_decl);
+ {
+ switch (code)
+ {
+ case FIELD_DECL:
+ return sizeof (struct tree_field_decl);
+ case PARM_DECL:
+ return sizeof (struct tree_parm_decl);
+ case VAR_DECL:
+ return sizeof (struct tree_var_decl);
+ case LABEL_DECL:
+ return sizeof (struct tree_label_decl);
+ case RESULT_DECL:
+ return sizeof (struct tree_result_decl);
+ case CONST_DECL:
+ return sizeof (struct tree_const_decl);
+ case TYPE_DECL:
+ return sizeof (struct tree_type_decl);
+ case FUNCTION_DECL:
+ return sizeof (struct tree_function_decl);
+ default:
+ return sizeof (struct tree_decl_non_common);
+ }
+ }
case tcc_type: /* a type node */
return sizeof (struct tree_type);
case STATEMENT_LIST: return sizeof (struct tree_statement_list);
case BLOCK: return sizeof (struct tree_block);
case VALUE_HANDLE: return sizeof (struct tree_value_handle);
+ case CONSTRUCTOR: return sizeof (struct tree_constructor);
default:
return lang_hooks.tree_size (code);
kind = id_kind;
break;
- case TREE_VEC:;
+ case TREE_VEC:
kind = vec_kind;
break;
kind = b_kind;
break;
+ case CONSTRUCTOR:
+ kind = constr_kind;
+ break;
+
default:
kind = x_kind;
break;
if (code != FUNCTION_DECL)
DECL_ALIGN (t) = 1;
DECL_USER_ALIGN (t) = 0;
- DECL_IN_SYSTEM_HEADER (t) = in_system_header;
+ if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
+ DECL_IN_SYSTEM_HEADER (t) = in_system_header;
+ /* We have not yet computed the alias set for this declaration. */
+ DECL_POINTER_ALIAS_SET (t) = -1;
DECL_SOURCE_LOCATION (t) = input_location;
DECL_UID (t) = next_decl_uid++;
- /* We have not yet computed the alias set for this declaration. */
- DECL_POINTER_ALIAS_SET (t) = -1;
break;
case tcc_type:
t->common.ann = 0;
if (TREE_CODE_CLASS (code) == tcc_declaration)
- DECL_UID (t) = next_decl_uid++;
+ {
+ DECL_UID (t) = next_decl_uid++;
+ if ((TREE_CODE (node) == PARM_DECL || TREE_CODE (node) == VAR_DECL)
+ && DECL_HAS_VALUE_EXPR_P (node))
+ {
+ SET_DECL_VALUE_EXPR (t, DECL_VALUE_EXPR (node));
+ DECL_HAS_VALUE_EXPR_P (t) = 1;
+ }
+ if (TREE_CODE (node) == VAR_DECL && DECL_HAS_INIT_PRIORITY_P (node))
+ {
+ SET_DECL_INIT_PRIORITY (t, DECL_INIT_PRIORITY (node));
+ DECL_HAS_INIT_PRIORITY_P (t) = 1;
+ }
+
+ }
else if (TREE_CODE_CLASS (code) == tcc_type)
{
TYPE_UID (t) = next_type_uid++;
return v;
}
+/* Return a new VECTOR_CST node whose type is TYPE and whose values
+ are extracted from V, a vector of CONSTRUCTOR_ELT. */
+
+tree
+build_vector_from_ctor (tree type, VEC(constructor_elt,gc) *v)
+{
+ tree list = NULL_TREE;
+ unsigned HOST_WIDE_INT idx;
+ tree value;
+
+ FOR_EACH_CONSTRUCTOR_VALUE (v, idx, value)
+ list = tree_cons (NULL_TREE, value, list);
+ return build_vector (type, nreverse (list));
+}
+
/* Return a new CONSTRUCTOR node whose type is TYPE and whose values
- are in a list pointed to by VALS. */
+ are in the VEC pointed by VALS. */
tree
-build_constructor (tree type, tree vals)
+build_constructor (tree type, VEC(constructor_elt,gc) *vals)
{
tree c = make_node (CONSTRUCTOR);
TREE_TYPE (c) = type;
CONSTRUCTOR_ELTS (c) = vals;
+ return c;
+}
+
+/* Build a CONSTRUCTOR node made of a single initializer, with the specified
+ INDEX and VALUE. */
+tree
+build_constructor_single (tree type, tree index, tree value)
+{
+ VEC(constructor_elt,gc) *v;
+ constructor_elt *elt;
+
+ v = VEC_alloc (constructor_elt, gc, 1);
+ elt = VEC_quick_push (constructor_elt, v, NULL);
+ elt->index = index;
+ elt->value = value;
+
+ return build_constructor (type, v);
+}
+
+
+/* Return a new CONSTRUCTOR node whose type is TYPE and whose values
+ are in a list pointed to by VALS. */
+tree
+build_constructor_from_list (tree type, tree vals)
+{
+ tree t;
+ VEC(constructor_elt,gc) *v = NULL;
- /* ??? May not be necessary. Mirrors what build does. */
if (vals)
{
- TREE_SIDE_EFFECTS (c) = TREE_SIDE_EFFECTS (vals);
- TREE_READONLY (c) = TREE_READONLY (vals);
- TREE_CONSTANT (c) = TREE_CONSTANT (vals);
- TREE_INVARIANT (c) = TREE_INVARIANT (vals);
+ v = VEC_alloc (constructor_elt, gc, list_length (vals));
+ for (t = vals; t; t = TREE_CHAIN (t))
+ {
+ constructor_elt *elt = VEC_quick_push (constructor_elt, v, NULL);
+ elt->index = TREE_PURPOSE (t);
+ elt->value = TREE_VALUE (t);
+ }
}
- return c;
+ return build_constructor (type, v);
}
+
/* Return a new REAL_CST node whose type is TYPE and value is D. */
tree
return (integer_zerop (min)
? max
- : fold (build2 (MINUS_EXPR, TREE_TYPE (max), max, min)));
+ : fold_build2 (MINUS_EXPR, TREE_TYPE (max), max, min));
}
\f
/* If arg is static -- a reference to an object in static storage -- then
case VAR_DECL:
return ((TREE_STATIC (arg) || DECL_EXTERNAL (arg))
- && ! DECL_THREAD_LOCAL (arg)
+ && ! DECL_THREAD_LOCAL_P (arg)
&& ! DECL_NON_ADDR_CONST_P (arg)
? arg : NULL);
enum tree_code code = TREE_CODE (t);
switch (TREE_CODE_CLASS (code))
- {
+ {
case tcc_declaration:
- return TS_DECL;
+ {
+ switch (code)
+ {
+ case FIELD_DECL:
+ return TS_FIELD_DECL;
+ case PARM_DECL:
+ return TS_PARM_DECL;
+ case VAR_DECL:
+ return TS_VAR_DECL;
+ case LABEL_DECL:
+ return TS_LABEL_DECL;
+ case RESULT_DECL:
+ return TS_RESULT_DECL;
+ case CONST_DECL:
+ return TS_CONST_DECL;
+ case TYPE_DECL:
+ return TS_TYPE_DECL;
+ case FUNCTION_DECL:
+ return TS_FUNCTION_DECL;
+ default:
+ return TS_DECL_NON_COMMON;
+ }
+ }
case tcc_type:
return TS_TYPE;
case tcc_reference:
case PLACEHOLDER_EXPR: return TS_COMMON;
case STATEMENT_LIST: return TS_STATEMENT_LIST;
case BLOCK: return TS_BLOCK;
+ case CONSTRUCTOR: return TS_CONSTRUCTOR;
case TREE_BINFO: return TS_BINFO;
case VALUE_HANDLE: return TS_VALUE_HANDLE;
if (op0 == TREE_OPERAND (exp, 0))
return exp;
- new = fold (build3 (COMPONENT_REF, TREE_TYPE (exp),
- op0, TREE_OPERAND (exp, 1), NULL_TREE));
+ new = fold_build3 (COMPONENT_REF, TREE_TYPE (exp),
+ op0, TREE_OPERAND (exp, 1), NULL_TREE);
}
else
switch (TREE_CODE_CLASS (code))
if (op0 == TREE_OPERAND (exp, 0))
return exp;
- new = fold (build1 (code, TREE_TYPE (exp), op0));
+ new = fold_build1 (code, TREE_TYPE (exp), op0);
break;
case 2:
if (op0 == TREE_OPERAND (exp, 0) && op1 == TREE_OPERAND (exp, 1))
return exp;
- new = fold (build2 (code, TREE_TYPE (exp), op0, op1));
+ new = fold_build2 (code, TREE_TYPE (exp), op0, op1);
break;
case 3:
&& op2 == TREE_OPERAND (exp, 2))
return exp;
- new = fold (build3 (code, TREE_TYPE (exp), op0, op1, op2));
+ new = fold_build3 (code, TREE_TYPE (exp), op0, op1, op2);
break;
default:
if (POINTER_TYPE_P (TREE_TYPE (elt))
&& (TYPE_MAIN_VARIANT (TREE_TYPE (TREE_TYPE (elt)))
== need_type))
- return fold (build1 (INDIRECT_REF, need_type, elt));
+ return fold_build1 (INDIRECT_REF, need_type, elt);
/* If we didn't find it, return the original PLACEHOLDER_EXPR. If it
survives until RTL generation, there will be an error. */
if (op0 == TREE_OPERAND (exp, 0))
return exp;
else
- return fold (build1 (code, TREE_TYPE (exp), op0));
+ return fold_build1 (code, TREE_TYPE (exp), op0);
case 2:
op0 = SUBSTITUTE_PLACEHOLDER_IN_EXPR (TREE_OPERAND (exp, 0), obj);
if (op0 == TREE_OPERAND (exp, 0) && op1 == TREE_OPERAND (exp, 1))
return exp;
else
- return fold (build2 (code, TREE_TYPE (exp), op0, op1));
+ return fold_build2 (code, TREE_TYPE (exp), op0, op1);
case 3:
op0 = SUBSTITUTE_PLACEHOLDER_IN_EXPR (TREE_OPERAND (exp, 0), obj);
&& op2 == TREE_OPERAND (exp, 2))
return exp;
else
- return fold (build3 (code, TREE_TYPE (exp), op0, op1, op2));
+ return fold_build3 (code, TREE_TYPE (exp), op0, op1, op2);
case 4:
op0 = SUBSTITUTE_PLACEHOLDER_IN_EXPR (TREE_OPERAND (exp, 0), obj);
UPDATE_TITCSE (TREE_OPERAND (node, 2));
}
+ node = lang_hooks.expr_to_decl (node, &tc, &ti, &se);
+
/* Now see what's inside. If it's an INDIRECT_REF, copy our properties from
the address, since &(*a)->b is a form of addition. If it's a decl, it's
invariant and constant if the decl is static. It's also invariant if it's
;
else if (decl_function_context (node) == current_function_decl
/* Addresses of thread-local variables are invariant. */
- || (TREE_CODE (node) == VAR_DECL && DECL_THREAD_LOCAL (node)))
+ || (TREE_CODE (node) == VAR_DECL
+ && DECL_THREAD_LOCAL_P (node)))
tc = false;
else
ti = tc = false;
return t;
}
+tree
+build7_stat (enum tree_code code, tree tt, tree arg0, tree arg1,
+ tree arg2, tree arg3, tree arg4, tree arg5,
+ tree arg6 MEM_STAT_DECL)
+{
+ bool constant, read_only, side_effects, invariant;
+ tree t;
+
+ gcc_assert (code == TARGET_MEM_REF);
+
+ t = make_node_stat (code PASS_MEM_STAT);
+ TREE_TYPE (t) = tt;
+
+ side_effects = TREE_SIDE_EFFECTS (t);
+
+ PROCESS_ARG(0);
+ PROCESS_ARG(1);
+ PROCESS_ARG(2);
+ PROCESS_ARG(3);
+ PROCESS_ARG(4);
+ PROCESS_ARG(5);
+ PROCESS_ARG(6);
+
+ TREE_SIDE_EFFECTS (t) = side_effects;
+ TREE_THIS_VOLATILE (t) = 0;
+
+ return t;
+}
+
/* Backup definition for non-gcc build compilers. */
tree
(build) (enum tree_code code, tree tt, ...)
{
- tree t, arg0, arg1, arg2, arg3;
+ tree t, arg0, arg1, arg2, arg3, arg4, arg5, arg6;
int length = TREE_CODE_LENGTH (code);
va_list p;
arg3 = va_arg (p, tree);
t = build4 (code, tt, arg0, arg1, arg2, arg3);
break;
+ case 7:
+ arg0 = va_arg (p, tree);
+ arg1 = va_arg (p, tree);
+ arg2 = va_arg (p, tree);
+ arg3 = va_arg (p, tree);
+ arg4 = va_arg (p, tree);
+ arg5 = va_arg (p, tree);
+ arg6 = va_arg (p, tree);
+ t = build7 (code, tt, arg0, arg1, arg2, arg3, arg4, arg5, arg6);
+ break;
default:
gcc_unreachable ();
}
else if (code == FUNCTION_DECL)
DECL_MODE (t) = FUNCTION_MODE;
- /* Set default visibility to whatever the user supplied with
- visibility_specified depending on #pragma GCC visibility. */
- DECL_VISIBILITY (t) = default_visibility;
- DECL_VISIBILITY_SPECIFIED (t) = visibility_options.inpragma;
+ if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
+ {
+ /* Set default visibility to whatever the user supplied with
+ visibility_specified depending on #pragma GCC visibility. */
+ DECL_VISIBILITY (t) = default_visibility;
+ DECL_VISIBILITY_SPECIFIED (t) = visibility_options.inpragma;
+ }
return t;
}
}
if (TREE_CODE (node) != RECORD_TYPE && TREE_CODE (node) != UNION_TYPE)
{
- warning (0, "%qs attribute ignored", IDENTIFIER_POINTER (name));
+ warning (OPT_Wattributes, "%qs attribute ignored",
+ IDENTIFIER_POINTER (name));
*no_add_attrs = true;
}
if (TREE_CODE (node) == FUNCTION_DECL && DECL_INITIAL (node)
&& !DECL_DECLARED_INLINE_P (node))
{
- error ("%Jfunction %qD definition is marked dllimport.", node, node);
+ error ("function %q+D definition is marked dllimport", node);
*no_add_attrs = true;
}
{
if (DECL_INITIAL (node))
{
- error ("%Jvariable %qD definition is marked dllimport.",
- node, node);
+ error ("variable %q+D definition is marked dllimport",
+ node);
*no_add_attrs = true;
}
&& (TREE_CODE (node) == VAR_DECL
|| TREE_CODE (node) == FUNCTION_DECL))
{
- error ("%Jexternal linkage required for symbol %qD because of "
- "%qs attribute.", node, node, IDENTIFIER_POINTER (name));
+ error ("external linkage required for symbol %q+D because of "
+ "%qs attribute", node, IDENTIFIER_POINTER (name));
*no_add_attrs = true;
}
return t;
}
\f
+/* Return true if the from tree in both tree maps are equal. */
+
+int
+tree_map_eq (const void *va, const void *vb)
+{
+ const struct tree_map *a = va, *b = vb;
+ return (a->from == b->from);
+}
+
+/* Hash a from tree in a tree_map. */
+
+unsigned int
+tree_map_hash (const void *item)
+{
+ return (((const struct tree_map *) item)->hash);
+}
+
+/* Return true if this tree map structure is marked for garbage collection
+ purposes. We simply return true if the from tree is marked, so that this
+ structure goes away when the from tree goes away. */
+
+int
+tree_map_marked_p (const void *p)
+{
+ tree from = ((struct tree_map *) p)->from;
+
+ return ggc_marked_p (from);
+}
+
+/* Return true if the trees in the tree_int_map *'s VA and VB are equal. */
+
+static int
+tree_int_map_eq (const void *va, const void *vb)
+{
+ const struct tree_int_map *a = va, *b = vb;
+ return (a->from == b->from);
+}
+
+/* Hash a from tree in the tree_int_map * ITEM. */
+
+static unsigned int
+tree_int_map_hash (const void *item)
+{
+ return htab_hash_pointer (((const struct tree_int_map *)item)->from);
+}
+
+/* Return true if this tree int map structure is marked for garbage collection
+ purposes. We simply return true if the from tree_int_map *P's from tree is marked, so that this
+ structure goes away when the from tree goes away. */
+
+static int
+tree_int_map_marked_p (const void *p)
+{
+ tree from = ((struct tree_int_map *) p)->from;
+
+ return ggc_marked_p (from);
+}
+/* Lookup an init priority for FROM, and return it if we find one. */
+
+unsigned short
+decl_init_priority_lookup (tree from)
+{
+ struct tree_int_map *h, in;
+ in.from = from;
+
+ h = htab_find_with_hash (init_priority_for_decl,
+ &in, htab_hash_pointer (from));
+ if (h)
+ return h->to;
+ return 0;
+}
+
+/* Insert a mapping FROM->TO in the init priority hashtable. */
+
+void
+decl_init_priority_insert (tree from, unsigned short to)
+{
+ struct tree_int_map *h;
+ void **loc;
+
+ h = ggc_alloc (sizeof (struct tree_int_map));
+ h->from = from;
+ h->to = to;
+ loc = htab_find_slot_with_hash (init_priority_for_decl, h,
+ htab_hash_pointer (from), INSERT);
+ *(struct tree_int_map **) loc = h;
+}
+
+/* Print out the statistics for the DECL_DEBUG_EXPR hash table. */
+
+static void
+print_debug_expr_statistics (void)
+{
+ fprintf (stderr, "DECL_DEBUG_EXPR hash: size %ld, %ld elements, %f collisions\n",
+ (long) htab_size (debug_expr_for_decl),
+ (long) htab_elements (debug_expr_for_decl),
+ htab_collisions (debug_expr_for_decl));
+}
+
+/* Print out the statistics for the DECL_VALUE_EXPR hash table. */
+
+static void
+print_value_expr_statistics (void)
+{
+ fprintf (stderr, "DECL_VALUE_EXPR hash: size %ld, %ld elements, %f collisions\n",
+ (long) htab_size (value_expr_for_decl),
+ (long) htab_elements (value_expr_for_decl),
+ htab_collisions (value_expr_for_decl));
+}
+/* Lookup a debug expression for FROM, and return it if we find one. */
+
+tree
+decl_debug_expr_lookup (tree from)
+{
+ struct tree_map *h, in;
+ in.from = from;
+
+ h = htab_find_with_hash (debug_expr_for_decl, &in, htab_hash_pointer (from));
+ if (h)
+ return h->to;
+ return NULL_TREE;
+}
+
+/* Insert a mapping FROM->TO in the debug expression hashtable. */
+
+void
+decl_debug_expr_insert (tree from, tree to)
+{
+ struct tree_map *h;
+ void **loc;
+
+ h = ggc_alloc (sizeof (struct tree_map));
+ h->hash = htab_hash_pointer (from);
+ h->from = from;
+ h->to = to;
+ loc = htab_find_slot_with_hash (debug_expr_for_decl, h, h->hash, INSERT);
+ *(struct tree_map **) loc = h;
+}
+
+/* Lookup a value expression for FROM, and return it if we find one. */
+
+tree
+decl_value_expr_lookup (tree from)
+{
+ struct tree_map *h, in;
+ in.from = from;
+
+ h = htab_find_with_hash (value_expr_for_decl, &in, htab_hash_pointer (from));
+ if (h)
+ return h->to;
+ return NULL_TREE;
+}
+
+/* Insert a mapping FROM->TO in the value expression hashtable. */
+
+void
+decl_value_expr_insert (tree from, tree to)
+{
+ struct tree_map *h;
+ void **loc;
+
+ h = ggc_alloc (sizeof (struct tree_map));
+ h->hash = htab_hash_pointer (from);
+ h->from = from;
+ h->to = to;
+ loc = htab_find_slot_with_hash (value_expr_for_decl, h, h->hash, INSERT);
+ *(struct tree_map **) loc = h;
+}
+
/* Hashing of types so that we don't make duplicates.
The entry point is `type_hash_canon'. */
TREE_STRING_LENGTH (t1)));
case CONSTRUCTOR:
- return simple_cst_list_equal (CONSTRUCTOR_ELTS (t1),
- CONSTRUCTOR_ELTS (t2));
+ {
+ unsigned HOST_WIDE_INT idx;
+ VEC(constructor_elt, gc) *v1 = CONSTRUCTOR_ELTS (t1);
+ VEC(constructor_elt, gc) *v2 = CONSTRUCTOR_ELTS (t2);
+
+ if (VEC_length (constructor_elt, v1) != VEC_length (constructor_elt, v2))
+ return false;
+
+ for (idx = 0; idx < VEC_length (constructor_elt, v1); ++idx)
+ /* ??? Should we handle also fields here? */
+ if (!simple_cst_equal (VEC_index (constructor_elt, v1, idx)->value,
+ VEC_index (constructor_elt, v2, idx)->value))
+ return false;
+ return true;
+ }
case SAVE_EXPR:
return simple_cst_equal (TREE_OPERAND (t1, 0), TREE_OPERAND (t2, 0));
for (; t; t = TREE_CHAIN (t))
val = iterative_hash_expr (TREE_VALUE (t), val);
return val;
+ case CONSTRUCTOR:
+ {
+ unsigned HOST_WIDE_INT idx;
+ tree field, value;
+ FOR_EACH_CONSTRUCTOR_ELT (CONSTRUCTOR_ELTS (t), idx, field, value)
+ {
+ val = iterative_hash_expr (field, val);
+ val = iterative_hash_expr (value, val);
+ }
+ return val;
+ }
case FUNCTION_DECL:
/* When referring to a built-in FUNCTION_DECL, use the
__builtin__ form. Otherwise nodes that compare equal
while (TREE_CODE (op) == NOP_EXPR
|| TREE_CODE (op) == CONVERT_EXPR)
{
- int bitschange
- = TYPE_PRECISION (TREE_TYPE (op))
- - TYPE_PRECISION (TREE_TYPE (TREE_OPERAND (op, 0)));
+ int bitschange;
+
+ /* TYPE_PRECISION on vector types has different meaning
+ (TYPE_VECTOR_SUBPARTS) and casts from vectors are view conversions,
+ so avoid them here. */
+ if (TREE_CODE (TREE_TYPE (TREE_OPERAND (op, 0))) == VECTOR_TYPE)
+ break;
+
+ bitschange = TYPE_PRECISION (TREE_TYPE (op))
+ - TYPE_PRECISION (TREE_TYPE (TREE_OPERAND (op, 0)));
/* Truncations are many-one so cannot be removed.
Unless we are later going to truncate down even farther. */
fprintf (stderr, "(No per-node statistics)\n");
#endif
print_type_hash_statistics ();
+ print_debug_expr_statistics ();
+ print_value_expr_statistics ();
lang_hooks.print_statistics ();
}
\f
TREE_CODE_CLASS_STRING (TREE_CODE_CLASS (TREE_CODE (node))),
tree_code_name[TREE_CODE (node)], function, trim_filename (file), line);
}
+#undef DEFTREESTRUCT
+#define DEFTREESTRUCT(VAL, NAME) NAME,
+
+static const char *ts_enum_names[] = {
+#include "treestruct.def"
+};
+#undef DEFTREESTRUCT
+
+#define TS_ENUM_NAME(EN) (ts_enum_names[(EN)])
+
+/* Similar to tree_class_check_failed, except that we check for
+ whether CODE contains the tree structure identified by EN. */
+
+void
+tree_contains_struct_check_failed (const tree node,
+ const enum tree_node_structure_enum en,
+ const char *file, int line,
+ const char *function)
+{
+ internal_error
+ ("tree check: expected tree that contains %qs structure, have %qs in %s, at %s:%d",
+ TS_ENUM_NAME(en),
+ tree_code_name[TREE_CODE (node)], function, trim_filename (file), line);
+}
+
/* Similar to above, except that the check is for the bounds of a TREE_VEC's
(dynamically sized) vector. */
tree t = make_node (VECTOR_TYPE);
TREE_TYPE (t) = TYPE_MAIN_VARIANT (innertype);
- TYPE_VECTOR_SUBPARTS (t) = nunits;
+ SET_TYPE_VECTOR_SUBPARTS (t, nunits);
TYPE_MODE (t) = mode;
TYPE_READONLY (t) = TYPE_READONLY (innertype);
TYPE_VOLATILE (t) = TYPE_VOLATILE (innertype);
tmp = tree_cons (NULL_TREE, size_type_node, void_list_node);
tmp = tree_cons (NULL_TREE, const_ptr_type_node, tmp);
tmp = tree_cons (NULL_TREE, const_ptr_type_node, tmp);
- ftype = build_function_type (ptr_type_node, tmp);
+ ftype = build_function_type (integer_type_node, tmp);
local_define_builtin ("__builtin_memcmp", ftype, BUILT_IN_MEMCMP,
"memcmp", ECF_PURE | ECF_NOTHROW);
}
return true;
case CONSTRUCTOR:
- elt = CONSTRUCTOR_ELTS (init);
- if (elt == NULL_TREE)
- return true;
+ {
+ unsigned HOST_WIDE_INT idx;
- for (; elt ; elt = TREE_CHAIN (elt))
- if (! initializer_zerop (TREE_VALUE (elt)))
- return false;
- return true;
+ FOR_EACH_CONSTRUCTOR_VALUE (CONSTRUCTOR_ELTS (init), idx, elt)
+ if (!initializer_zerop (elt))
+ return false;
+ return true;
+ }
default:
return false;
return a;
if (tree_int_cst_sgn (a) == -1)
- a = fold (build2 (MULT_EXPR, type, a,
- convert (type, integer_minus_one_node)));
+ a = fold_build2 (MULT_EXPR, type, a,
+ convert (type, integer_minus_one_node));
if (tree_int_cst_sgn (b) == -1)
- b = fold (build2 (MULT_EXPR, type, b,
- convert (type, integer_minus_one_node)));
+ b = fold_build2 (MULT_EXPR, type, b,
+ convert (type, integer_minus_one_node));
while (1)
{
- a_mod_b = fold (build2 (FLOOR_MOD_EXPR, type, a, b));
+ a_mod_b = fold_build2 (FLOOR_MOD_EXPR, type, a, b);
if (!TREE_INT_CST_LOW (a_mod_b)
&& !TREE_INT_CST_HIGH (a_mod_b))
upper_bound_in_type (tree outer, tree inner)
{
unsigned HOST_WIDE_INT lo, hi;
- unsigned bits = TYPE_PRECISION (inner);
+ unsigned int det = 0;
+ unsigned oprec = TYPE_PRECISION (outer);
+ unsigned iprec = TYPE_PRECISION (inner);
+ unsigned prec;
+
+ /* Compute a unique number for every combination. */
+ det |= (oprec > iprec) ? 4 : 0;
+ det |= TYPE_UNSIGNED (outer) ? 2 : 0;
+ det |= TYPE_UNSIGNED (inner) ? 1 : 0;
+
+ /* Determine the exponent to use. */
+ switch (det)
+ {
+ case 0:
+ case 1:
+ /* oprec <= iprec, outer: signed, inner: don't care. */
+ prec = oprec - 1;
+ break;
+ case 2:
+ case 3:
+ /* oprec <= iprec, outer: unsigned, inner: don't care. */
+ prec = oprec;
+ break;
+ case 4:
+ /* oprec > iprec, outer: signed, inner: signed. */
+ prec = iprec - 1;
+ break;
+ case 5:
+ /* oprec > iprec, outer: signed, inner: unsigned. */
+ prec = iprec;
+ break;
+ case 6:
+ /* oprec > iprec, outer: unsigned, inner: signed. */
+ prec = oprec;
+ break;
+ case 7:
+ /* oprec > iprec, outer: unsigned, inner: unsigned. */
+ prec = iprec;
+ break;
+ default:
+ gcc_unreachable ();
+ }
- if (TYPE_UNSIGNED (outer) || TYPE_UNSIGNED (inner))
+ /* Compute 2^^prec - 1. */
+ if (prec <= HOST_BITS_PER_WIDE_INT)
{
- /* Zero extending in these cases. */
- if (bits <= HOST_BITS_PER_WIDE_INT)
- {
- hi = 0;
- lo = (~(unsigned HOST_WIDE_INT) 0)
- >> (HOST_BITS_PER_WIDE_INT - bits);
- }
- else
- {
- hi = (~(unsigned HOST_WIDE_INT) 0)
- >> (2 * HOST_BITS_PER_WIDE_INT - bits);
- lo = ~(unsigned HOST_WIDE_INT) 0;
- }
+ hi = 0;
+ lo = ((~(unsigned HOST_WIDE_INT) 0)
+ >> (HOST_BITS_PER_WIDE_INT - prec));
}
else
{
- /* Sign extending in these cases. */
- if (bits <= HOST_BITS_PER_WIDE_INT)
- {
- hi = 0;
- lo = (~(unsigned HOST_WIDE_INT) 0)
- >> (HOST_BITS_PER_WIDE_INT - bits) >> 1;
- }
- else
- {
- hi = (~(unsigned HOST_WIDE_INT) 0)
- >> (2 * HOST_BITS_PER_WIDE_INT - bits) >> 1;
- lo = ~(unsigned HOST_WIDE_INT) 0;
- }
+ hi = ((~(unsigned HOST_WIDE_INT) 0)
+ >> (2 * HOST_BITS_PER_WIDE_INT - prec));
+ lo = ~(unsigned HOST_WIDE_INT) 0;
}
- return fold_convert (outer,
- build_int_cst_wide (inner, lo, hi));
+ return build_int_cst_wide (outer, lo, hi);
}
/* Returns the smallest value obtainable by casting something in INNER type to
lower_bound_in_type (tree outer, tree inner)
{
unsigned HOST_WIDE_INT lo, hi;
- unsigned bits = TYPE_PRECISION (inner);
-
- if (TYPE_UNSIGNED (outer) || TYPE_UNSIGNED (inner))
+ unsigned oprec = TYPE_PRECISION (outer);
+ unsigned iprec = TYPE_PRECISION (inner);
+
+ /* If OUTER type is unsigned, we can definitely cast 0 to OUTER type
+ and obtain 0. */
+ if (TYPE_UNSIGNED (outer)
+ /* If we are widening something of an unsigned type, OUTER type
+ contains all values of INNER type. In particular, both INNER
+ and OUTER types have zero in common. */
+ || (oprec > iprec && TYPE_UNSIGNED (inner)))
lo = hi = 0;
- else if (bits <= HOST_BITS_PER_WIDE_INT)
- {
- hi = ~(unsigned HOST_WIDE_INT) 0;
- lo = (~(unsigned HOST_WIDE_INT) 0) << (bits - 1);
- }
else
{
- hi = (~(unsigned HOST_WIDE_INT) 0) << (bits - HOST_BITS_PER_WIDE_INT - 1);
- lo = 0;
+ /* If we are widening a signed type to another signed type, we
+ want to obtain -2^^(iprec-1). If we are keeping the
+ precision or narrowing to a signed type, we want to obtain
+ -2^(oprec-1). */
+ unsigned prec = oprec > iprec ? iprec : oprec;
+
+ if (prec <= HOST_BITS_PER_WIDE_INT)
+ {
+ hi = ~(unsigned HOST_WIDE_INT) 0;
+ lo = (~(unsigned HOST_WIDE_INT) 0) << (prec - 1);
+ }
+ else
+ {
+ hi = ((~(unsigned HOST_WIDE_INT) 0)
+ << (prec - HOST_BITS_PER_WIDE_INT - 1));
+ lo = 0;
+ }
}
- return fold_convert (outer,
- build_int_cst_wide (inner, lo, hi));
+ return build_int_cst_wide (outer, lo, hi);
}
/* Return nonzero if two operands that are suitable for PHI nodes are
case SSA_NAME:
case FIELD_DECL:
case RESULT_DECL:
- /* None of thse have subtrees other than those already walked
+ /* None of these have subtrees other than those already walked
above. */
break;
WALK_SUBTREE_TAIL (TREE_IMAGPART (*tp));
case CONSTRUCTOR:
- WALK_SUBTREE_TAIL (CONSTRUCTOR_ELTS (*tp));
+ {
+ unsigned HOST_WIDE_INT idx;
+ constructor_elt *ce;
+
+ for (idx = 0;
+ VEC_iterate(constructor_elt, CONSTRUCTOR_ELTS (*tp), idx, ce);
+ idx++)
+ WALK_SUBTREE (ce->value);
+ }
+ break;
case SAVE_EXPR:
WALK_SUBTREE_TAIL (TREE_OPERAND (*tp, 0));
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