#include "system.h"
#include "flags.h"
#include "tree.h"
+#include "real.h"
#include "tm_p.h"
#include "function.h"
#include "obstack.h"
struct obstack permanent_obstack;
+#ifdef GATHER_STATISTICS
/* Statistics-gathering stuff. */
typedef enum
{
"lang_decl kinds",
"lang_type kinds"
};
+#endif /* GATHER_STATISTICS */
/* Unique id for next decl created. */
static int next_decl_uid;
/* Since we cannot rehash a type after it is in the table, we have to
keep the hash code. */
-struct type_hash
+struct type_hash GTY(())
{
unsigned long hash;
tree type;
same table, they are completely independent, and the hash code is
computed differently for each of these. */
-htab_t type_hash_table;
+static GTY ((if_marked ("type_hash_marked_p"), param_is (struct type_hash)))
+ htab_t type_hash_table;
static void set_type_quals PARAMS ((tree, int));
static void append_random_chars PARAMS ((char *));
static void finish_vector_type PARAMS((tree));
static tree make_vector PARAMS ((enum machine_mode, tree, int));
static int type_hash_marked_p PARAMS ((const void *));
-static void type_hash_mark PARAMS ((const void *));
-static int mark_tree_hashtable_entry PARAMS((void **, void *));
tree global_trees[TI_MAX];
tree integer_types[itk_none];
/* Initialize the hash table of types. */
type_hash_table = htab_create (TYPE_HASH_INITIAL_SIZE, type_hash_hash,
type_hash_eq, 0);
- ggc_add_deletable_htab (type_hash_table, type_hash_marked_p,
- type_hash_mark);
- ggc_add_tree_root (global_trees, TI_MAX);
- ggc_add_tree_root (integer_types, itk_none);
}
\f
REAL_VALUE_TYPE d;
{
tree v;
+ REAL_VALUE_TYPE *dp;
int overflow = 0;
/* Check for valid float value for this type on this target machine;
#endif
v = make_node (REAL_CST);
+ dp = ggc_alloc (sizeof (REAL_VALUE_TYPE));
+ memcpy (dp, &d, sizeof (REAL_VALUE_TYPE));
+
TREE_TYPE (v) = type;
- TREE_REAL_CST (v) = d;
+ TREE_REAL_CST_PTR (v) = dp;
TREE_OVERFLOW (v) = TREE_CONSTANT_OVERFLOW (v) = overflow;
return v;
}
{
tree v;
int overflow = TREE_OVERFLOW (i);
- REAL_VALUE_TYPE d;
- v = make_node (REAL_CST);
- TREE_TYPE (v) = type;
-
- d = real_value_from_int_cst (type, i);
-
- /* Check for valid float value for this type on this target machine. */
-#ifdef CHECK_FLOAT_VALUE
- CHECK_FLOAT_VALUE (TYPE_MODE (type), d, overflow);
-#endif
+ v = build_real (type, real_value_from_int_cst (type, i));
- TREE_REAL_CST (v) = d;
- TREE_OVERFLOW (v) = TREE_CONSTANT_OVERFLOW (v) = overflow;
+ TREE_OVERFLOW (v) |= overflow;
+ TREE_CONSTANT_OVERFLOW (v) |= overflow;
return v;
}
&& real_zerop (TREE_IMAGPART (expr))));
}
+/* Return 1 if EXPR is the real constant minus one. */
+
+int
+real_minus_onep (expr)
+ tree expr;
+{
+ STRIP_NOPS (expr);
+
+ return ((TREE_CODE (expr) == REAL_CST
+ && ! TREE_CONSTANT_OVERFLOW (expr)
+ && REAL_VALUES_EQUAL (TREE_REAL_CST (expr), dconstm1))
+ || (TREE_CODE (expr) == COMPLEX_CST
+ && real_minus_onep (TREE_REALPART (expr))
+ && real_zerop (TREE_IMAGPART (expr))));
+}
+
/* Nonzero if EXP is a constant or a cast of a constant. */
int
case FUNCTION_DECL:
/* Nested functions aren't static, since taking their address
involves a trampoline. */
- return (decl_function_context (arg) == 0 || DECL_NO_STATIC_CHAIN (arg))
- && ! DECL_NON_ADDR_CONST_P (arg);
+ return ((decl_function_context (arg) == 0 || DECL_NO_STATIC_CHAIN (arg))
+ && ! DECL_NON_ADDR_CONST_P (arg));
case VAR_DECL:
- return (TREE_STATIC (arg) || DECL_EXTERNAL (arg))
- && ! DECL_NON_ADDR_CONST_P (arg);
+ return ((TREE_STATIC (arg) || DECL_EXTERNAL (arg))
+ && ! DECL_THREAD_LOCAL (arg)
+ && ! DECL_NON_ADDR_CONST_P (arg));
case CONSTRUCTOR:
return TREE_STATIC (arg);
}
}
+/* Return which tree structure is used by T. */
+
+enum tree_node_structure_enum
+tree_node_structure (t)
+ tree t;
+{
+ enum tree_code code = TREE_CODE (t);
+
+ switch (TREE_CODE_CLASS (code))
+ {
+ case 'd': return TS_DECL;
+ case 't': return TS_TYPE;
+ case 'b': return TS_BLOCK;
+ case 'r': case '<': case '1': case '2': case 'e': case 's':
+ return TS_EXP;
+ default: /* 'c' and 'x' */
+ break;
+ }
+ switch (code)
+ {
+ /* 'c' cases. */
+ case INTEGER_CST: return TS_INT_CST;
+ case REAL_CST: return TS_REAL_CST;
+ case COMPLEX_CST: return TS_COMPLEX;
+ case VECTOR_CST: return TS_VECTOR;
+ case STRING_CST: return TS_STRING;
+ /* 'x' cases. */
+ case ERROR_MARK: return TS_COMMON;
+ case IDENTIFIER_NODE: return TS_IDENTIFIER;
+ case TREE_LIST: return TS_LIST;
+ case TREE_VEC: return TS_VEC;
+ case PLACEHOLDER_EXPR: return TS_COMMON;
+
+ default:
+ abort ();
+ }
+}
+
/* Perform any modifications to EXPR required when it is unsaved. Does
not recurse into EXPR's subtrees. */
return ttype;
}
-/* Default registration of target-specific CPP built-ins. */
-void
-default_register_cpp_builtins (pfile)
- struct cpp_reader *pfile ATTRIBUTE_UNUSED;
-{
-}
-
/* Default value of targetm.comp_type_attributes that always returns 1. */
int
return ggc_marked_p (type) || TYPE_SYMTAB_POINTER (type);
}
-/* Mark the entry in the type hash table the type it points to is marked.
- Also mark the type in case we are considering this entry "marked" by
- virtue of TYPE_SYMTAB_POINTER being set. */
-
-static void
-type_hash_mark (p)
- const void *p;
-{
- ggc_mark (p);
- ggc_mark_tree (((struct type_hash *) p)->type);
-}
-
-/* Mark the hashtable slot pointed to by ENTRY (which is really a
- `tree**') for GC. */
-
-static int
-mark_tree_hashtable_entry (entry, data)
- void **entry;
- void *data ATTRIBUTE_UNUSED;
-{
- ggc_mark_tree ((tree) *entry);
- return 1;
-}
-
-/* Mark ARG (which is really a htab_t whose slots are trees) for
- GC. */
-
-void
-mark_tree_hashtable (arg)
- void *arg;
-{
- htab_t t = *(htab_t *) arg;
- htab_traverse (t, mark_tree_hashtable_entry, 0);
-}
-
static void
print_type_hash_statistics ()
{
return t;
}
+/* Build a function type. The RETURN_TYPE is the type retured by the
+ function. If additional arguments are provided, they are
+ additional argument types. The list of argument types must always
+ be terminated by NULL_TREE. */
+
+tree
+build_function_type_list VPARAMS ((tree return_type, ...))
+{
+ tree t, args, last;
+
+ VA_OPEN (p, return_type);
+ VA_FIXEDARG (p, tree, return_type);
+
+ t = va_arg (p, tree);
+ for (args = NULL_TREE; t != NULL_TREE; t = va_arg (p, tree))
+ args = tree_cons (NULL_TREE, t, args);
+
+ last = args;
+ args = nreverse (args);
+ TREE_CHAIN (last) = void_list_node;
+ args = build_function_type (return_type, args);
+
+ VA_CLOSE (p);
+ return args;
+}
+
/* Construct, lay out and return the type of methods belonging to class
BASETYPE and whose arguments and values are described by TYPE.
If that type exists already, reuse it.
while (context)
{
+ if (TREE_CODE (context) == NAMESPACE_DECL)
+ return NULL_TREE;
+
if (TREE_CODE (context) == RECORD_TYPE
|| TREE_CODE (context) == UNION_TYPE
|| TREE_CODE (context) == QUAL_UNION_TYPE)
return false;
}
}
+
+#include "gt-tree.h"
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