#undef DEFTREECODE
-/* Number of tree codes. */
-#define NUM_TREE_CODES ((int)LAST_AND_UNUSED_TREE_CODE)
+/* Number of language-independent tree codes. */
+#define NUM_TREE_CODES ((int) LAST_AND_UNUSED_TREE_CODE)
/* Indexed by enum tree_code, contains a character which is
`<' for a comparison expression, `1', for a unary arithmetic
/* Number of argument-words in each kind of tree-node. */
extern int tree_code_length[MAX_TREE_CODES];
+#define TREE_CODE_LENGTH(CODE) tree_code_length[(int) (CODE)]
/* Names of tree components. */
/* Codes that identify the various built in functions
so that expand_call can identify them quickly. */
+#define DEF_BUILTIN(ENUM, N, C, T, LT, B, F, NA) ENUM,
enum built_in_function
{
- BUILT_IN_ALLOCA,
- BUILT_IN_ABS,
- BUILT_IN_FABS,
- BUILT_IN_LABS,
- BUILT_IN_FFS,
- BUILT_IN_DIV,
- BUILT_IN_LDIV,
- BUILT_IN_FFLOOR,
- BUILT_IN_FCEIL,
- BUILT_IN_FMOD,
- BUILT_IN_FREM,
- BUILT_IN_MEMCPY,
- BUILT_IN_MEMCMP,
- BUILT_IN_MEMSET,
- BUILT_IN_STRCPY,
- BUILT_IN_STRCMP,
- BUILT_IN_STRLEN,
- BUILT_IN_FSQRT,
- BUILT_IN_SIN,
- BUILT_IN_COS,
- BUILT_IN_GETEXP,
- BUILT_IN_GETMAN,
- BUILT_IN_SAVEREGS,
- BUILT_IN_CLASSIFY_TYPE,
- BUILT_IN_NEXT_ARG,
- BUILT_IN_ARGS_INFO,
- BUILT_IN_CONSTANT_P,
- BUILT_IN_FRAME_ADDRESS,
- BUILT_IN_RETURN_ADDRESS,
- BUILT_IN_AGGREGATE_INCOMING_ADDRESS,
- BUILT_IN_APPLY_ARGS,
- BUILT_IN_APPLY,
- BUILT_IN_RETURN,
- BUILT_IN_SETJMP,
- BUILT_IN_LONGJMP,
- BUILT_IN_TRAP,
-
- /* ISO C99 floating point unordered comparisons. */
- BUILT_IN_ISGREATER,
- BUILT_IN_ISGREATEREQUAL,
- BUILT_IN_ISLESS,
- BUILT_IN_ISLESSEQUAL,
- BUILT_IN_ISLESSGREATER,
- BUILT_IN_ISUNORDERED,
-
- /* Various hooks for the DWARF 2 __throw routine. */
- BUILT_IN_UNWIND_INIT,
- BUILT_IN_DWARF_CFA,
- BUILT_IN_DWARF_FP_REGNUM,
- BUILT_IN_INIT_DWARF_REG_SIZES,
- BUILT_IN_FROB_RETURN_ADDR,
- BUILT_IN_EXTRACT_RETURN_ADDR,
- BUILT_IN_EH_RETURN,
-
- BUILT_IN_VARARGS_START,
- BUILT_IN_STDARG_START,
- BUILT_IN_VA_END,
- BUILT_IN_VA_COPY,
-
- /* C++ extensions */
- BUILT_IN_NEW,
- BUILT_IN_VEC_NEW,
- BUILT_IN_DELETE,
- BUILT_IN_VEC_DELETE,
+#include "builtins.def"
/* Upper bound on non-language-specific builtins. */
END_BUILTINS
};
+#undef DEF_BUILTIN
/* Names for the above. */
extern const char *const built_in_names[(int) END_BUILTINS];
+
+/* An array of _DECL trees for the above. */
+extern union tree_node *built_in_decls[(int) END_BUILTINS];
\f
/* The definition of tree nodes fills the next several pages. */
/* Every kind of tree node starts with this structure,
so all nodes have these fields.
- See the accessor macros, defined below, for documentation of the fields.
-
- DO NOT change the layout of tree_common unless absolutely necessary. Some
- front-ends (namely g++) depend on the internal layout of this tructure.
- See my_tree_cons in the cp subdir for such uglyness. Ugh. */
+ See the accessor macros, defined below, for documentation of the
+ fields. */
struct tree_common
{
union tree_node *chain;
union tree_node *type;
-#ifdef ONLY_INT_FIELDS
- unsigned int code : 8;
-#else
- enum tree_code code : 8;
-#endif
-
+ ENUM_BITFIELD(tree_code) code : 8;
unsigned side_effects_flag : 1;
unsigned constant_flag : 1;
- unsigned permanent_flag : 1;
unsigned addressable_flag : 1;
unsigned volatile_flag : 1;
unsigned readonly_flag : 1;
unsigned public_flag : 1;
unsigned private_flag : 1;
unsigned protected_flag : 1;
+ unsigned bounded_flag : 1;
unsigned lang_flag_0 : 1;
unsigned lang_flag_1 : 1;
unsigned lang_flag_4 : 1;
unsigned lang_flag_5 : 1;
unsigned lang_flag_6 : 1;
-
- /* There is room for three more flags. */
+ /* This flag is presently unused. However, language front-ends
+ should not make use of this flag; it is reserved for future
+ expansion. */
+ unsigned dummy : 1;
};
/* The following table lists the uses of each of the above flags and
addressable_flag:
TREE_ADDRESSABLE in
- VAR_DECL, FUNCTION_DECL, CONSTRUCTOR, LABEL_DECL, ..._TYPE
- IDENTIFIER_NODE
+ VAR_DECL, FUNCTION_DECL, FIELD_DECL, CONSTRUCTOR, LABEL_DECL,
+ ..._TYPE, IDENTIFIER_NODE
static_flag:
TREE_OVERFLOW in
INTEGER_CST, REAL_CST, COMPLEX_CST
TREE_PUBLIC in
- VAR_DECL or FUNCTION_DECL
+ VAR_DECL or FUNCTION_DECL or IDENTIFIER_NODE
TREE_VIA_PUBLIC in
TREE_LIST or TREE_VEC
EXPR_WFL_EMIT_LINE_NOTE in
TREE_READONLY in
all expressions
- ITERATOR_BOUND_P in
- VAR_DECL if iterator (C)
TYPE_READONLY in
..._TYPE
TREE_CONSTANT in
all expressions
- permanent_flag: TREE_PERMANENT in all nodes
-
unsigned_flag:
TREE_UNSIGNED in
INTEGER_TYPE, ENUMERAL_TYPE, FIELD_DECL
DECL_BUILT_IN_NONANSI in
FUNCTION_DECL
- TREE_PARMLIST in
- TREE_PARMLIST (C++)
SAVE_EXPR_NOPLACEHOLDER in
SAVE_EXPR
TREE_NOTHROW in
CALL_EXPR, FUNCTION_DECL
- */
+ bounded_flag:
+
+ TREE_BOUNDED in
+ expressions, VAR_DECL, PARM_DECL, FIELD_DECL, FUNCTION_DECL,
+ IDENTIFIER_NODE
+ TYPE_BOUNDED in
+ ..._TYPE
+*/
+
/* Define accessors for the fields that all tree nodes have
(though some fields are not used for all kinds of nodes). */
/* The tree-code says what kind of node it is.
Codes are defined in tree.def. */
#define TREE_CODE(NODE) ((enum tree_code) (NODE)->common.code)
-#define TREE_SET_CODE(NODE, VALUE) ((NODE)->common.code = (int) (VALUE))
+#define TREE_SET_CODE(NODE, VALUE) \
+((NODE)->common.code = (ENUM_BITFIELD(tree_code)) (VALUE))
/* When checking is enabled, errors will be generated if a tree node
is accessed incorrectly. The macros abort with a fatal error. */
#if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
-#define TREE_CHECK(t, code) \
+#define TREE_CHECK(t, code) __extension__ \
({ const tree __t = t; \
if (TREE_CODE(__t) != (code)) \
- tree_check_failed (__t, code, __FILE__, \
- __LINE__, __PRETTY_FUNCTION__); \
+ tree_check_failed (__t, code, __FILE__, __LINE__, __FUNCTION__); \
__t; })
-#define TREE_CLASS_CHECK(t, class) \
+#define TREE_CLASS_CHECK(t, class) __extension__ \
({ const tree __t = t; \
if (TREE_CODE_CLASS(TREE_CODE(__t)) != (class)) \
- tree_class_check_failed (__t, class, __FILE__, \
- __LINE__, __PRETTY_FUNCTION__); \
+ tree_class_check_failed (__t, class, __FILE__, __LINE__, __FUNCTION__); \
__t; })
/* These checks have to be special cased. */
-#define CST_OR_CONSTRUCTOR_CHECK(t) \
+#define CST_OR_CONSTRUCTOR_CHECK(t) __extension__ \
({ const tree __t = t; \
enum tree_code __c = TREE_CODE(__t); \
if (__c != CONSTRUCTOR && TREE_CODE_CLASS(__c) != 'c') \
- tree_check_failed (__t, CONSTRUCTOR, __FILE__, \
- __LINE__, __PRETTY_FUNCTION__); \
+ tree_check_failed (__t, CONSTRUCTOR, __FILE__, __LINE__, __FUNCTION__); \
__t; })
-#define EXPR_CHECK(t) \
+#define EXPR_CHECK(t) __extension__ \
({ const tree __t = t; \
char __c = TREE_CODE_CLASS(TREE_CODE(__t)); \
if (__c != 'r' && __c != 's' && __c != '<' \
&& __c != '1' && __c != '2' && __c != 'e') \
- tree_class_check_failed(__t, 'e', __FILE__, \
- __LINE__, __PRETTY_FUNCTION__); \
+ tree_class_check_failed(__t, 'e', __FILE__, __LINE__, __FUNCTION__); \
__t; })
extern void tree_check_failed PARAMS ((const tree, enum tree_code,
- const char *, int, const char *))
+ const char *, int, const char *))
ATTRIBUTE_NORETURN;
-extern void tree_class_check_failed PARAMS ((const tree, char,
- const char *, int, const char *))
+extern void tree_class_check_failed PARAMS ((const tree, int,
+ const char *, int, const char *))
ATTRIBUTE_NORETURN;
#else /* not ENABLE_TREE_CHECKING, or not gcc */
/* In all nodes that are expressions, this is the data type of the expression.
In POINTER_TYPE nodes, this is the type that the pointer points to.
- In ARRAY_TYPE nodes, this is the type of the elements. */
+ In ARRAY_TYPE nodes, this is the type of the elements.
+ In VECTOR_TYPE nodes, this is the type of the elements. */
#define TREE_TYPE(NODE) ((NODE)->common.type)
/* Nodes are chained together for many purposes.
/* Given an expression as a tree, strip any NON_LVALUE_EXPRs and NOP_EXPRs
that don't change the machine mode. */
-#define STRIP_NOPS(EXP) \
+#define STRIP_NOPS(EXP) \
while ((TREE_CODE (EXP) == NOP_EXPR \
|| TREE_CODE (EXP) == CONVERT_EXPR \
|| TREE_CODE (EXP) == NON_LVALUE_EXPR) \
+ && TREE_OPERAND (EXP, 0) != error_mark_node \
&& (TYPE_MODE (TREE_TYPE (EXP)) \
== TYPE_MODE (TREE_TYPE (TREE_OPERAND (EXP, 0))))) \
(EXP) = TREE_OPERAND (EXP, 0);
while ((TREE_CODE (EXP) == NOP_EXPR \
|| TREE_CODE (EXP) == CONVERT_EXPR \
|| TREE_CODE (EXP) == NON_LVALUE_EXPR) \
+ && TREE_OPERAND (EXP, 0) != error_mark_node \
&& (TYPE_MODE (TREE_TYPE (EXP)) \
== TYPE_MODE (TREE_TYPE (TREE_OPERAND (EXP, 0)))) \
&& (TREE_UNSIGNED (TREE_TYPE (EXP)) \
while ((TREE_CODE (EXP) == NOP_EXPR \
|| TREE_CODE (EXP) == CONVERT_EXPR \
|| TREE_CODE (EXP) == NON_LVALUE_EXPR) \
+ && TREE_OPERAND (EXP, 0) != error_mark_node \
&& (TREE_TYPE (EXP) \
== TREE_TYPE (TREE_OPERAND (EXP, 0)))) \
(EXP) = TREE_OPERAND (EXP, 0);
|| TREE_CODE (TYPE) == UNION_TYPE || TREE_CODE (TYPE) == QUAL_UNION_TYPE \
|| TREE_CODE (TYPE) == SET_TYPE)
-/* Nonzero if TYPE represents a pointer type. */
+/* Nonzero if TYPE represents an unbounded pointer or unbounded
+ reference type. (It should be renamed to INDIRECT_TYPE_P.) */
#define POINTER_TYPE_P(TYPE) \
(TREE_CODE (TYPE) == POINTER_TYPE || TREE_CODE (TYPE) == REFERENCE_TYPE)
+/* Nonzero if TYPE represents a bounded pointer or bounded reference type. */
+
+#define BOUNDED_INDIRECT_TYPE_P(TYPE) \
+ (TREE_CODE (TYPE) == RECORD_TYPE && TREE_TYPE (TYPE))
+
+/* Nonzero if TYPE represents a bounded pointer type. */
+
+#define BOUNDED_POINTER_TYPE_P(TYPE) \
+ (BOUNDED_INDIRECT_TYPE_P (TYPE) \
+ && TREE_CODE (TYPE_BOUNDED_SUBTYPE (TYPE)) == POINTER_TYPE)
+
+/* Nonzero if TYPE represents a bounded reference type. Bounded
+ reference types have two specific uses: (1) When a reference is
+ seated to a variable-length RECORD_TYPE that has an array of
+ indeterminate length as its final field. For all other objects, it
+ is sufficient to check bounds at the time the reference is seated,
+ and assume that all future uses of the reference are safe, since
+ the address of references cannot change. (2) When a reference
+ supertype is seated to an subtype object. The bounds "remember"
+ the true size of the complete object, so that subsequent upcasts of
+ the address of the reference will be checked properly (is such a
+ thing valid C++?). */
+
+#define BOUNDED_REFERENCE_TYPE_P(TYPE) \
+ (BOUNDED_INDIRECT_TYPE_P (TYPE) \
+ && TREE_CODE (TYPE_BOUNDED_SUBTYPE (TYPE)) == REFERENCE_TYPE)
+
+/* Nonzero if TYPE represents a pointer or reference type, either
+ bounded or unbounded. */
+
+#define MAYBE_BOUNDED_INDIRECT_TYPE_P(TYPE) \
+ (POINTER_TYPE_P (TYPE) || BOUNDED_INDIRECT_TYPE_P (TYPE))
+
+/* Nonzero if TYPE represents a pointer type, either bounded or unbounded. */
+
+#define MAYBE_BOUNDED_POINTER_TYPE_P(TYPE) \
+ (TREE_CODE (TYPE) == POINTER_TYPE || BOUNDED_POINTER_TYPE_P (TYPE))
+
+/* Nonzero if TYPE represents a reference type, either bounded or unbounded. */
+
+#define MAYBE_BOUNDED_REFERENCE_TYPE_P(TYPE) \
+ (TREE_CODE (TYPE) == REFERENCE_TYPE || BOUNDED_REFERENCE_TYPE_P (TYPE))
+
+/* Nonzero if this type is a complete type. */
+#define COMPLETE_TYPE_P(NODE) (TYPE_SIZE (NODE) != NULL_TREE)
+
+/* Nonzero if this type is the (possibly qualified) void type. */
+#define VOID_TYPE_P(NODE) (TREE_CODE (NODE) == VOID_TYPE)
+
+/* Nonzero if this type is complete or is cv void. */
+#define COMPLETE_OR_VOID_TYPE_P(NODE) \
+ (COMPLETE_TYPE_P (NODE) || VOID_TYPE_P (NODE))
+
+/* Nonzero if this type is complete or is an array with unspecified bound. */
+#define COMPLETE_OR_UNBOUND_ARRAY_TYPE_P(NODE) \
+ (COMPLETE_TYPE_P (TREE_CODE (NODE) == ARRAY_TYPE ? TREE_TYPE (NODE) : NODE))
+
/* Nonzero if TYPE represents a type. */
#define TYPE_P(TYPE) (TREE_CODE_CLASS (TREE_CODE (TYPE)) == 't')
So it cannot be in a register.
In a FUNCTION_DECL, nonzero means its address is needed.
So it must be compiled even if it is an inline function.
+ In a FIELD_DECL node, it means that the programmer is permitted to
+ construct the address of this field. This is used for aliasing
+ purposes: see record_component_aliases.
In CONSTRUCTOR nodes, it means object constructed must be in memory.
In LABEL_DECL nodes, it means a goto for this label has been seen
from a place outside all binding contours that restore stack levels.
/* In a VAR_DECL or FUNCTION_DECL,
nonzero means name is to be accessible from outside this module.
- In an identifier node, nonzero means an external declaration
+ In an IDENTIFIER_NODE, nonzero means an external declaration
accessible from outside this module was previously seen
for this name in an inner scope. */
#define TREE_PUBLIC(NODE) ((NODE)->common.public_flag)
if the value is constant. */
#define TREE_CONSTANT(NODE) ((NODE)->common.constant_flag)
-/* Nonzero means permanent node;
- node will continue to exist for the entire compiler run.
- Otherwise it will be recycled at the end of the function.
- This flag is always zero if garbage collection is in use.
- Try not to use this. Only set it with TREE_SET_PERMANENT. */
-#define TREE_PERMANENT(NODE) ((NODE)->common.permanent_flag)
-#define TREE_SET_PERMANENT(NODE) do { \
- if (!ggc_p && current_obstack == &permanent_obstack) \
- TREE_PERMANENT(NODE) = 1; \
-} while (0)
-
/* In INTEGER_TYPE or ENUMERAL_TYPE nodes, means an unsigned type.
In FIELD_DECL nodes, means an unsigned bit field.
The same bit is used in functions as DECL_BUILT_IN_NONANSI. */
#define TREE_UNSIGNED(NODE) ((NODE)->common.unsigned_flag)
+#define TYPE_TRAP_SIGNED(NODE) (flag_trapv && ! TREE_UNSIGNED (NODE))
+
/* Nonzero in a VAR_DECL means assembler code has been written.
Nonzero in a FUNCTION_DECL means that the function has been compiled.
This is interesting in an inline function, since it might not need
In a BLOCK node, this is BLOCK_HANDLER_BLOCK. */
#define TREE_PROTECTED(NODE) ((NODE)->common.protected_flag)
+/* In a ..._TYPE node, nonzero means that the type's size and layout,
+ (or the size and layout of its arguments and/or return value in the
+ case of a FUNCTION_TYPE or METHOD_TYPE) was changed by the presence
+ of pointer bounds. Use TYPE_BOUNDED instead of this macro when the
+ node is a type, because eventually we may make that a different
+ bit. TYPE_BOUNDED doesn't mean that this type is a bounded indirect
+ type--use BOUNDED_POINTER_TYPE_P, BOUNDED_REFERENCE_TYPE_P,
+ BOUNDED_INDIRECT_TYPE_P to test for that.
+
+ In a FUNCTION_DECL, nonzero means that the size and layout of one
+ of its arguments and/or return value was changed by the presence of
+ pointer bounds. This value can differ from the value of
+ TYPE_BOUNDED (TREE_TYPE (fundecl)) if the function was implicitly
+ declared, then later called with pointer args, or was declared with
+ a variable argument list and is later called with pointer values in
+ the variable argument list.
+
+ In a VAR_DECL, PARM_DECL or FIELD_DECL, TREE_BOUNDED matches the value
+ of the decl's type's BOUNDED_POINTER_TYPE_P.
+
+ In a CONSTRUCTOR or other expression, nonzero means the value is a
+ bounded pointer. It is insufficient to determine the boundedness
+ of an expression EXP with BOUNDED_POINTER_TYPE_P (TREE_TYPE (EXP)),
+ since we allow pointer to be temporarily cast to integer for
+ rounding up to an alignment boudary in a way that preserves the
+ pointer's bounds.
+
+ In an IDENTIFIER_NODE, nonzero means that the name is prefixed with
+ BP_PREFIX (see varasm.c). This occurs for the DECL_ASSEMBLER_NAME
+ of a function that has bounded pointer(s) for its return type and/or
+ argument type(s). */
+
+#define TREE_BOUNDED(NODE) ((NODE)->common.bounded_flag)
+
/* These flags are available for each language front end to use internally. */
#define TREE_LANG_FLAG_0(NODE) ((NODE)->common.lang_flag_0)
#define TREE_LANG_FLAG_1(NODE) ((NODE)->common.lang_flag_1)
If the data type is signed, the value is sign-extended to 2 words
even though not all of them may really be in use.
In an unsigned constant shorter than 2 words, the extra bits are 0. */
-#define TREE_INT_CST_LOW(NODE) (INTEGER_CST_CHECK (NODE)->int_cst.int_cst_low)
-#define TREE_INT_CST_HIGH(NODE) (INTEGER_CST_CHECK (NODE)->int_cst.int_cst_high)
+#define TREE_INT_CST(NODE) (INTEGER_CST_CHECK (NODE)->int_cst.int_cst)
+#define TREE_INT_CST_LOW(NODE) (TREE_INT_CST (NODE).low)
+#define TREE_INT_CST_HIGH(NODE) (TREE_INT_CST (NODE).high)
#define INT_CST_LT(A, B) \
(TREE_INT_CST_HIGH (A) < TREE_INT_CST_HIGH (B) \
struct tree_int_cst
{
- char common[sizeof (struct tree_common)];
+ struct tree_common common;
struct rtx_def *rtl; /* acts as link to register transfer language
(rtl) info */
- unsigned HOST_WIDE_INT int_cst_low;
- HOST_WIDE_INT int_cst_high;
+ /* A sub-struct is necessary here because the function `const_hash'
+ wants to scan both words as a unit and taking the address of the
+ sub-struct yields the properly inclusive bounded pointer. */
+ struct {
+ unsigned HOST_WIDE_INT low;
+ HOST_WIDE_INT high;
+ } int_cst;
};
/* In REAL_CST, STRING_CST, COMPLEX_CST nodes, and CONSTRUCTOR nodes,
struct tree_real_cst
{
- char common[sizeof (struct tree_common)];
+ struct tree_common common;
struct rtx_def *rtl; /* acts as link to register transfer language
(rtl) info */
REAL_VALUE_TYPE real_cst;
struct tree_string
{
- char common[sizeof (struct tree_common)];
+ struct tree_common common;
struct rtx_def *rtl; /* acts as link to register transfer language
(rtl) info */
int length;
- char *pointer;
+ const char *pointer;
};
/* In a COMPLEX_CST node. */
struct tree_complex
{
- char common[sizeof (struct tree_common)];
+ struct tree_common common;
struct rtx_def *rtl; /* acts as link to register transfer language
(rtl) info */
union tree_node *real;
union tree_node *imag;
};
\f
+#include "hashtable.h"
+
/* Define fields and accessors for some special-purpose tree nodes. */
-#define IDENTIFIER_LENGTH(NODE) (IDENTIFIER_NODE_CHECK (NODE)->identifier.length)
-#define IDENTIFIER_POINTER(NODE) (IDENTIFIER_NODE_CHECK (NODE)->identifier.pointer)
+#define IDENTIFIER_LENGTH(NODE) \
+ (IDENTIFIER_NODE_CHECK (NODE)->identifier.id.len)
+#define IDENTIFIER_POINTER(NODE) \
+ ((char *) IDENTIFIER_NODE_CHECK (NODE)->identifier.id.str)
+
+/* Translate a hash table identifier pointer to a tree_identifier
+ pointer, and vice versa. */
+
+#define HT_IDENT_TO_GCC_IDENT(NODE) \
+ ((tree) ((char *) (NODE) - sizeof (struct tree_common)))
+#define GCC_IDENT_TO_HT_IDENT(NODE) \
+ (&((struct tree_identifier *) (NODE))->id)
struct tree_identifier
{
- char common[sizeof (struct tree_common)];
- int length;
- char *pointer;
+ struct tree_common common;
+ struct ht_identifier id;
};
/* In a TREE_LIST node. */
struct tree_list
{
- char common[sizeof (struct tree_common)];
+ struct tree_common common;
union tree_node *purpose;
union tree_node *value;
};
struct tree_vec
{
- char common[sizeof (struct tree_common)];
+ struct tree_common common;
int length;
union tree_node *a[1];
};
#define RTL_EXPR_SEQUENCE(NODE) (*(struct rtx_def **) &EXPR_CHECK (NODE)->exp.operands[0])
#define RTL_EXPR_RTL(NODE) (*(struct rtx_def **) &EXPR_CHECK (NODE)->exp.operands[1])
-/* In a CALL_EXPR node. */
-#define CALL_EXPR_RTL(NODE) (*(struct rtx_def **) &EXPR_CHECK (NODE)->exp.operands[2])
-
/* In a CONSTRUCTOR node. */
#define CONSTRUCTOR_ELTS(NODE) TREE_OPERAND (NODE, 1)
struct tree_exp
{
- char common[sizeof (struct tree_common)];
+ struct tree_common common;
int complexity;
union tree_node *operands[1];
};
#define BLOCK_SUPERCONTEXT(NODE) (BLOCK_CHECK (NODE)->block.supercontext)
/* Note: when changing this, make sure to find the places
that use chainon or nreverse. */
-#define BLOCK_CHAIN(NODE) TREE_CHAIN (NODE)
+#define BLOCK_CHAIN(NODE) TREE_CHAIN (BLOCK_CHECK (NODE))
#define BLOCK_ABSTRACT_ORIGIN(NODE) (BLOCK_CHECK (NODE)->block.abstract_origin)
#define BLOCK_ABSTRACT(NODE) (BLOCK_CHECK (NODE)->block.abstract_flag)
struct tree_block
{
- char common[sizeof (struct tree_common)];
+ struct tree_common common;
unsigned handler_block_flag : 1;
unsigned abstract_flag : 1;
#define TYPE_MAIN_VARIANT(NODE) (TYPE_CHECK (NODE)->type.main_variant)
#define TYPE_NONCOPIED_PARTS(NODE) (TYPE_CHECK (NODE)->type.noncopied_parts)
#define TYPE_CONTEXT(NODE) (TYPE_CHECK (NODE)->type.context)
-#define TYPE_OBSTACK(NODE) (TYPE_CHECK (NODE)->type.obstack)
#define TYPE_LANG_SPECIFIC(NODE) (TYPE_CHECK (NODE)->type.lang_specific)
+/* For a VECTOR_TYPE node, this describes a different type which is emitted
+ in the debugging output. We use this to describe a vector as a
+ structure containing an array. */
+#define TYPE_DEBUG_REPRESENTATION_TYPE(NODE) (TYPE_CHECK (NODE)->type.values)
+
+/* Indirect types present difficulties because they may be represented
+ as either POINTER_TYPE/REFERENCE_TYPE nodes (unbounded) or as
+ RECORD_TYPE nodes (bounded). Bounded and unbounded pointers might
+ be logically equivalent, but physically different. Simple
+ comparison of the main variant only tells if the types are
+ logically equivalent. Use this predicate to compare for physical
+ equivalency. */
+
+/* Types have the same main variant, and have the same boundedness. */
+#define TYPE_MAIN_VARIANTS_PHYSICALLY_EQUAL_P(TYPE1, TYPE2) \
+ (TYPE_MAIN_VARIANT (TYPE1) == TYPE_MAIN_VARIANT (TYPE2) \
+ && TREE_CODE (TYPE1) == TREE_CODE (TYPE2))
+
+/* Return the type variant that has no qualifiers (i.e., the main variant),
+ except that the boundedness qualifier is preserved. */
+#define TYPE_MAIN_PHYSICAL_VARIANT(TYPE) \
+ (BOUNDED_POINTER_TYPE_P (TYPE) \
+ ? build_qualified_type (TYPE, TYPE_QUAL_BOUNDED) \
+ : TYPE_MAIN_VARIANT (TYPE))
+
/* For aggregate types, information about this type, as a base type
for itself. Used in a language-dependent way for types that are
neither a RECORD_TYPE, QUAL_UNION_TYPE, nor a UNION_TYPE. */
The value is an int, measured in bits. */
#define TYPE_ALIGN(NODE) (TYPE_CHECK (NODE)->type.align)
+/* 1 if the alignment for this type was requested by "aligned" attribute,
+ 0 if it is the default for this type. */
+#define TYPE_USER_ALIGN(NODE) (TYPE_CHECK (NODE)->type.user_align)
+
/* The alignment for NODE, in bytes. */
#define TYPE_ALIGN_UNIT(NODE) \
(TYPE_ALIGN (NODE) / BITS_PER_UNIT)
+/* If your language allows you to declare types, and you want debug info
+ for them, then you need to generate corresponding TYPE_DECL nodes.
+ These "stub" TYPE_DECL nodes have no name, and simply point at the
+ type node. You then set the TYPE_STUB_DECL field of the type node
+ to point back at the TYPE_DECL node. This allows the debug routines
+ to know that the two nodes represent the same type, so that we only
+ get one debug info record for them. */
#define TYPE_STUB_DECL(NODE) (TREE_CHAIN (NODE))
/* In a RECORD_TYPE, UNION_TYPE or QUAL_UNION_TYPE, it means the type
its size. */
#define TYPE_NO_FORCE_BLK(NODE) (TYPE_CHECK (NODE)->type.no_force_blk_flag)
-/* In an INTEGER_TYPE, it means the type represents a size. We use this
- both for validity checking and to permit optimziations that are unsafe
- for other types. */
-#define TYPE_IS_SIZETYPE(NODE) (TYPE_CHECK (NODE)->type.no_force_blk_flag)
+/* In an INTEGER_TYPE, it means the type represents a size. We use
+ this both for validity checking and to permit optimizations that
+ are unsafe for other types. Note that the C `size_t' type should
+ *not* have this flag set. The `size_t' type is simply a typedef
+ for an ordinary integer type that happens to be the type of an
+ expression returned by `sizeof'; `size_t' has no special
+ properties. Expressions whose type have TYPE_IS_SIZETYPE set are
+ always actual sizes. */
+#define TYPE_IS_SIZETYPE(NODE) \
+ (INTEGER_TYPE_CHECK (NODE)->type.no_force_blk_flag)
+
+/* In a FUNCTION_TYPE, indicates that the function returns with the stack
+ pointer depressed. */
+#define TYPE_RETURNS_STACK_DEPRESSED(NODE) \
+ (FUNCTION_TYPE_CHECK (NODE)->type.no_force_blk_flag)
/* Nonzero in a type considered volatile as a whole. */
#define TYPE_VOLATILE(NODE) ((NODE)->common.volatile_flag)
the term. */
#define TYPE_RESTRICT(NODE) (TYPE_CHECK (NODE)->type.restrict_flag)
+/* If nonzero, this type's size and layout, (or the size and layout of
+ its arguments and/or return value in the case of a FUNCTION_TYPE or
+ METHOD_TYPE) was changed by the presence of pointer bounds. */
+#define TYPE_BOUNDED(NODE) (TYPE_CHECK (NODE)->common.bounded_flag)
+
/* There is a TYPE_QUAL value for each type qualifier. They can be
combined by bitwise-or to form the complete set of qualifiers for a
type. */
#define TYPE_QUAL_CONST 0x1
#define TYPE_QUAL_VOLATILE 0x2
#define TYPE_QUAL_RESTRICT 0x4
+#define TYPE_QUAL_BOUNDED 0x8
/* The set of type qualifiers for this type. */
-#define TYPE_QUALS(NODE) \
- ((TYPE_READONLY(NODE) * TYPE_QUAL_CONST) \
- | (TYPE_VOLATILE(NODE) * TYPE_QUAL_VOLATILE) \
- | (TYPE_RESTRICT(NODE) * TYPE_QUAL_RESTRICT))
+#define TYPE_QUALS(NODE) \
+ ((TYPE_READONLY (NODE) * TYPE_QUAL_CONST) \
+ | (TYPE_VOLATILE (NODE) * TYPE_QUAL_VOLATILE) \
+ | (TYPE_RESTRICT (NODE) * TYPE_QUAL_RESTRICT) \
+ | (BOUNDED_INDIRECT_TYPE_P (NODE) * TYPE_QUAL_BOUNDED))
+
+/* The set of qualifiers pertinent to an expression node. */
+#define TREE_EXPR_QUALS(NODE) \
+ ((TREE_READONLY (NODE) * TYPE_QUAL_CONST) \
+ | (TREE_THIS_VOLATILE (NODE) * TYPE_QUAL_VOLATILE) \
+ | (TREE_BOUNDED (NODE) * TYPE_QUAL_BOUNDED))
+
+/* The set of qualifiers pertinent to a FUNCTION_DECL node. */
+#define TREE_FUNC_QUALS(NODE) \
+ ((TREE_READONLY (NODE) * TYPE_QUAL_CONST) \
+ | (TREE_THIS_VOLATILE (NODE) * TYPE_QUAL_VOLATILE))
/* These flags are available for each language front end to use internally. */
#define TYPE_LANG_FLAG_0(NODE) (TYPE_CHECK (NODE)->type.lang_flag_0)
object of the given ARRAY_TYPE. This allows temporaries to be allocated. */
#define TYPE_ARRAY_MAX_SIZE(ARRAY_TYPE) TYPE_MAX_VALUE (ARRAY_TYPE)
-/* Indicates that objects of this type must be initialized by calling a
+/* For a VECTOR_TYPE, this is the number of sub-parts of the vector. */
+#define TYPE_VECTOR_SUBPARTS(VECTOR_TYPE) (GET_MODE_NUNITS (TYPE_CHECK (VECTOR_TYPE)->type.mode))
+
+ /* Indicates that objects of this type must be initialized by calling a
function when they are created. */
-#define TYPE_NEEDS_CONSTRUCTING(NODE) (TYPE_CHECK (NODE)->type.needs_constructing_flag)
+#define TYPE_NEEDS_CONSTRUCTING(NODE) \
+ (TYPE_CHECK (NODE)->type.needs_constructing_flag)
/* Indicates that objects of this type (a UNION_TYPE), should be passed
the same way that the first union alternative would be passed. */
-#define TYPE_TRANSPARENT_UNION(NODE) (TYPE_CHECK (NODE)->type.transparent_union_flag)
+#define TYPE_TRANSPARENT_UNION(NODE) \
+ (UNION_TYPE_CHECK (NODE)->type.transparent_union_flag)
+
+/* For an ARRAY_TYPE, indicates that it is not permitted to
+ take the address of a component of the type. */
+#define TYPE_NONALIASED_COMPONENT(NODE) \
+ (ARRAY_TYPE_CHECK (NODE)->type.transparent_union_flag)
/* Indicated that objects of this type should be laid out in as
compact a way as possible. */
#define TYPE_PACKED(NODE) (TYPE_CHECK (NODE)->type.packed_flag)
+/* A bounded pointer or bounded reference type (collectively called
+ indirect types) is represented as a RECORD_TYPE node containing
+ three pointer fields whose type is the corresponding unbounded
+ POINTER_TYPE or REFERENCE_TYPE. A RECORD_TYPE node that represents
+ a bounded indirect type differs from a normal RECORD_TYPE node in
+ that its TREE_TYPE is non-NULL and has the pointed-to type just as
+ a POINTER_TYPE or REFERENCE_TYPE node has. The bounded RECORD_TYPE
+ nodes are stored on the same type variant chain alongside the
+ variants of the underlaying indirect types nodes. The main variant
+ of such chains is always the unbounded type. */
+
+/* Access the field decls of a bounded-pointer type. */
+#define TYPE_BOUNDED_VALUE(TYPE) TYPE_FIELDS (TYPE)
+#define TYPE_BOUNDED_BASE(TYPE) TREE_CHAIN (TYPE_BOUNDED_VALUE (TYPE))
+#define TYPE_BOUNDED_EXTENT(TYPE) TREE_CHAIN (TYPE_BOUNDED_BASE (TYPE))
+
+/* Access the simple-pointer subtype of a bounded-pointer type. */
+#define TYPE_BOUNDED_SUBTYPE(TYPE) TREE_TYPE (TYPE_BOUNDED_VALUE (TYPE))
+
+/* Find the unbounded counterpart to a type, or return TYPE if it is
+ already unbounded. */
+#define TYPE_UNBOUNDED_VARIANT(TYPE) \
+ (BOUNDED_POINTER_TYPE_P (TYPE) ? TYPE_BOUNDED_SUBTYPE (TYPE) : (TYPE))
+
+/* This field comprises two bits, for values in the range 0..3:
+
+ depth=0 means that type is a scalar, or an aggregate that contains
+ only depth=0 types, or a function that has only depth=0 types for
+ its return value and argument types.
+
+ depth=1 means that type is a pointer to a depth=0 type, or an
+ aggregate that contains only depth=0 and depth=1 types, or a
+ function that has only depth=0 and depth=1 types for its return
+ value and argument types.
+
+ The meanings of depth=2 and depth=3 are obvious by induction.
+ Varargs functions are depth=3. The type `va_list' is depth=3.
+
+ The purpose of measuring pointer depth of a type is to determine
+ the eligibility of a function for an automatically-generated
+ bounded-pointer thunk. A depth=0 functions needs no thunk. A
+ depth=1 function is eligible for an automatic thunk. Functions
+ with depth 2 or more are too complex to get automatic thunks.
+
+ Function decls also have a pointer_depth field, since we also
+ consider the actual argument types for functions. */
+
+#define TYPE_POINTER_DEPTH(TYPE) (TYPE_CHECK (TYPE)->type.pointer_depth)
+
+/* In a FUNCTION_TYPE node, this bit stores the value of
+ default_pointer_boundedness at the time TYPE was created. It is
+ useful for choosing default boundedness of function arguments for
+ non-prototype function decls and for varargs/stdarg lists. */
+#define TYPE_AMBIENT_BOUNDEDNESS(TYPE) \
+ (FUNCTION_TYPE_CHECK (TYPE)->type.transparent_union_flag)
+
+#define MAX_POINTER_DEPTH 2
+#define VA_LIST_POINTER_DEPTH 3
+
struct tree_type
{
- char common[sizeof (struct tree_common)];
+ struct tree_common common;
union tree_node *values;
union tree_node *size;
union tree_node *size_unit;
union tree_node *attributes;
- unsigned uid;
+ unsigned int uid;
- unsigned char precision;
-#ifdef ONLY_INT_FIELDS
- unsigned int mode : 8;
-#else
- enum machine_mode mode : 8;
-#endif
+ unsigned int precision : 9;
+ ENUM_BITFIELD(machine_mode) mode : 7;
unsigned string_flag : 1;
unsigned no_force_blk_flag : 1;
unsigned transparent_union_flag : 1;
unsigned packed_flag : 1;
unsigned restrict_flag : 1;
+ unsigned pointer_depth : 2;
unsigned lang_flag_0 : 1;
unsigned lang_flag_1 : 1;
unsigned lang_flag_4 : 1;
unsigned lang_flag_5 : 1;
unsigned lang_flag_6 : 1;
- /* room for 3 more bits */
+ unsigned user_align : 1;
unsigned int align;
union tree_node *pointer_to;
union tree_node *binfo;
union tree_node *noncopied_parts;
union tree_node *context;
- struct obstack *obstack;
- int alias_set;
+ HOST_WIDE_INT alias_set;
/* Points to a structure whose details depend on the language in use. */
struct lang_type *lang_specific;
};
/* This is the name of the object as written by the user.
It is an IDENTIFIER_NODE. */
#define DECL_NAME(NODE) (DECL_CHECK (NODE)->decl.name)
-/* This is the name of the object as the assembler will see it
- (but before any translations made by ASM_OUTPUT_LABELREF).
- Often this is the same as DECL_NAME.
- It is an IDENTIFIER_NODE. */
-#define DECL_ASSEMBLER_NAME(NODE) (DECL_CHECK (NODE)->decl.assembler_name)
+/* The name of the object as the assembler will see it (but before any
+ translations made by ASM_OUTPUT_LABELREF). Often this is the same
+ as DECL_NAME. It is an IDENTIFIER_NODE. */
+#define DECL_ASSEMBLER_NAME(NODE) \
+ ((DECL_ASSEMBLER_NAME_SET_P (NODE) \
+ ? (void) 0 \
+ : (*lang_set_decl_assembler_name) (NODE)), \
+ DECL_CHECK (NODE)->decl.assembler_name)
+/* Returns non-zero if the DECL_ASSEMBLER_NAME for NODE has been
+ set. If zero, the NODE might still have a DECL_ASSEMBLER_NAME --
+ it just hasn't been set yet. */
+#define DECL_ASSEMBLER_NAME_SET_P(NODE) \
+ (DECL_CHECK (NODE)->decl.assembler_name != NULL_TREE)
+/* Set the DECL_ASSEMBLER_NAME for NODE to NAME. */
+#define SET_DECL_ASSEMBLER_NAME(NODE, NAME) \
+ (DECL_CHECK (NODE)->decl.assembler_name = (NAME))
+/* Copy the DECL_ASSEMBLER_NAME from DECL1 to DECL2. Note that if
+ DECL1's DECL_ASSEMBLER_NAME has not yet been set, using this macro
+ will not cause the DECL_ASSEMBLER_NAME of either DECL to be set.
+ In other words, the semantics of using this macro, are different
+ than saying:
+
+ SET_DECL_ASSEMBLER_NAME(DECL2, DECL_ASSEMBLER_NAME (DECL1))
+
+ which will try to set the DECL_ASSEMBLER_NAME for DECL1. */
+#define COPY_DECL_ASSEMBLER_NAME(DECL1, DECL2) \
+ (DECL_ASSEMBLER_NAME_SET_P (DECL1) \
+ ? (void) SET_DECL_ASSEMBLER_NAME (DECL2, \
+ DECL_ASSEMBLER_NAME (DECL1)) \
+ : (void) 0)
+
/* Records the section name in a section attribute. Used to pass
the name from decl_attributes to make_function_rtl and make_decl_rtl. */
#define DECL_SECTION_NAME(NODE) (DECL_CHECK (NODE)->decl.section_name)
containing function, the RECORD_TYPE or UNION_TYPE for the containing
type, or NULL_TREE if the given decl has "file scope". */
#define DECL_CONTEXT(NODE) (DECL_CHECK (NODE)->decl.context)
-#define DECL_FIELD_CONTEXT(NODE) (DECL_CHECK (NODE)->decl.context)
+#define DECL_FIELD_CONTEXT(NODE) (FIELD_DECL_CHECK (NODE)->decl.context)
/* In a DECL this is the field where configuration dependent machine
attributes are store */
#define DECL_MACHINE_ATTRIBUTES(NODE) (DECL_CHECK (NODE)->decl.machine_attributes)
-/* In a FIELD_DECL, this is the field position, counting in bits,
- of the bit closest to the beginning of the structure. */
-#define DECL_FIELD_BITPOS(NODE) (DECL_CHECK (NODE)->decl.arguments)
+/* In a FIELD_DECL, this is the field position, counting in bytes, of the
+ byte containing the bit closest to the beginning of the structure. */
+#define DECL_FIELD_OFFSET(NODE) (FIELD_DECL_CHECK (NODE)->decl.arguments)
+/* In a FIELD_DECL, this is the offset, in bits, of the first bit of the
+ field from DECL_FIELD_OFFSET. */
+#define DECL_FIELD_BIT_OFFSET(NODE) (FIELD_DECL_CHECK (NODE)->decl.u2.t)
/* In a FIELD_DECL, this indicates whether the field was a bit-field and
if so, the type that was originally specified for it.
TREE_TYPE may have been modified (in finish_struct). */
-#define DECL_BIT_FIELD_TYPE(NODE) (DECL_CHECK (NODE)->decl.result)
+#define DECL_BIT_FIELD_TYPE(NODE) (FIELD_DECL_CHECK (NODE)->decl.result)
/* In FUNCTION_DECL, a chain of ..._DECL nodes. */
/* VAR_DECL and PARM_DECL reserve the arguments slot
for language-specific uses. */
#define DECL_ARGUMENTS(NODE) (DECL_CHECK (NODE)->decl.arguments)
+/* This field is used to reference anything in decl.result and is meant only
+ for use by the garbage collector. */
+#define DECL_RESULT_FLD(NODE) (DECL_CHECK (NODE)->decl.result)
/* In FUNCTION_DECL, holds the decl for the return value. */
-#define DECL_RESULT(NODE) (DECL_CHECK (NODE)->decl.result)
+#define DECL_RESULT(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.result)
/* For a TYPE_DECL, holds the "original" type. (TREE_TYPE has the copy.) */
-#define DECL_ORIGINAL_TYPE(NODE) (DECL_CHECK (NODE)->decl.result)
+#define DECL_ORIGINAL_TYPE(NODE) (TYPE_DECL_CHECK (NODE)->decl.result)
/* In PARM_DECL, holds the type as written (perhaps a function or array). */
-#define DECL_ARG_TYPE_AS_WRITTEN(NODE) (DECL_CHECK (NODE)->decl.result)
+#define DECL_ARG_TYPE_AS_WRITTEN(NODE) (PARM_DECL_CHECK (NODE)->decl.result)
/* For a FUNCTION_DECL, holds the tree of BINDINGs.
For a VAR_DECL, holds the initial value.
For a PARM_DECL, not used--default
#define DECL_INITIAL(NODE) (DECL_CHECK (NODE)->decl.initial)
/* For a PARM_DECL, records the data type used to pass the argument,
which may be different from the type seen in the program. */
-#define DECL_ARG_TYPE(NODE) (DECL_CHECK (NODE)->decl.initial)
+#define DECL_ARG_TYPE(NODE) (PARM_DECL_CHECK (NODE)->decl.initial)
/* For a FIELD_DECL in a QUAL_UNION_TYPE, records the expression, which
if nonzero, indicates that the field occupies the type. */
-#define DECL_QUALIFIER(NODE) (DECL_CHECK (NODE)->decl.initial)
+#define DECL_QUALIFIER(NODE) (FIELD_DECL_CHECK (NODE)->decl.initial)
/* These two fields describe where in the source code the declaration was. */
#define DECL_SOURCE_FILE(NODE) (DECL_CHECK (NODE)->decl.filename)
#define DECL_SOURCE_LINE(NODE) (DECL_CHECK (NODE)->decl.linenum)
#define DECL_SIZE(NODE) (DECL_CHECK (NODE)->decl.size)
/* Likewise for the size in bytes. */
#define DECL_SIZE_UNIT(NODE) (DECL_CHECK (NODE)->decl.size_unit)
-/* Holds the alignment required for the datum. */
-#define DECL_ALIGN(NODE) (DECL_CHECK (NODE)->decl.u1.u)
+/* Holds the alignment required for the datum, in bits. */
+#define DECL_ALIGN(NODE) (DECL_CHECK (NODE)->decl.u1.a.align)
+/* The alignment of NODE, in bytes. */
+#define DECL_ALIGN_UNIT(NODE) (DECL_ALIGN (NODE) / BITS_PER_UNIT)
+/* For FIELD_DECLs, off_align holds the number of low-order bits of
+ DECL_FIELD_OFFSET which are known to be always zero.
+ DECL_OFFSET_ALIGN thus returns the alignment that DECL_FIELD_OFFSET
+ has. */
+#define DECL_OFFSET_ALIGN(NODE) \
+ (((unsigned HOST_WIDE_INT)1) << FIELD_DECL_CHECK (NODE)->decl.u1.a.off_align)
+/* Specify that DECL_ALIGN(NODE) is a multiple of X. */
+#define SET_DECL_OFFSET_ALIGN(NODE, X) \
+ (FIELD_DECL_CHECK (NODE)->decl.u1.a.off_align = exact_log2 ((X) & -(X)))
+/* 1 if the alignment for this type was requested by "aligned" attribute,
+ 0 if it is the default for this type. */
+#define DECL_USER_ALIGN(NODE) (DECL_CHECK (NODE)->decl.user_align)
/* Holds the machine mode corresponding to the declaration of a variable or
field. Always equal to TYPE_MODE (TREE_TYPE (decl)) except for a
FIELD_DECL. */
PROMOTED_MODE is defined, the mode of this expression may not be same
as DECL_MODE. In that case, DECL_MODE contains the mode corresponding
to the variable's data type, while the mode
- of DECL_RTL is the mode actually used to contain the data. */
-#define DECL_RTL(NODE) (DECL_CHECK (NODE)->decl.rtl)
+ of DECL_RTL is the mode actually used to contain the data.
+
+ This value can be evaluated lazily for functions, variables with
+ static storage duration, and labels. */
+#define DECL_RTL(NODE) \
+ (DECL_CHECK (NODE)->decl.rtl \
+ ? (NODE)->decl.rtl \
+ : (make_decl_rtl (NODE, NULL), (NODE)->decl.rtl))
+/* Set the DECL_RTL for NODE to RTL. */
+#define SET_DECL_RTL(NODE, RTL) \
+ (DECL_CHECK (NODE)->decl.rtl = (RTL))
+/* Returns non-zero if the DECL_RTL for NODE has already been set. */
+#define DECL_RTL_SET_P(NODE) \
+ (DECL_CHECK (NODE)->decl.rtl != NULL)
+/* Copy the RTL from NODE1 to NODE2. If the RTL was not set for
+ NODE1, it will not be set for NODE2; this is a lazy copy. */
+#define COPY_DECL_RTL(NODE1, NODE2) \
+ (DECL_CHECK (NODE2)->decl.rtl = DECL_CHECK (NODE1)->decl.rtl)
+/* The DECL_RTL for NODE, if it is set, or NULL, if it is not set. */
+#define DECL_RTL_IF_SET(NODE) \
+ (DECL_RTL_SET_P (NODE) ? DECL_RTL (NODE) : NULL)
/* Holds an INSN_LIST of all of the live ranges in which the variable
has been moved to a possibly different register. */
#define DECL_LIVE_RANGE_RTL(NODE) (DECL_CHECK (NODE)->decl.live_range_rtl)
/* For PARM_DECL, holds an RTL for the stack slot or register
where the data was actually passed. */
-#define DECL_INCOMING_RTL(NODE) (DECL_CHECK (NODE)->decl.u2.r)
+#define DECL_INCOMING_RTL(NODE) (PARM_DECL_CHECK (NODE)->decl.u2.r)
/* For FUNCTION_DECL, if it is inline, holds the saved insn chain. */
-#define DECL_SAVED_INSNS(NODE) (DECL_CHECK (NODE)->decl.u2.f)
-/* For FUNCTION_DECL, if it is inline,
- holds the size of the stack frame, as an integer. */
-#define DECL_FRAME_SIZE(NODE) (DECL_CHECK (NODE)->decl.u1.i)
+#define DECL_SAVED_INSNS(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.u2.f)
/* For FUNCTION_DECL, if it is built-in,
this identifies which built-in operation it is. */
-#define DECL_FUNCTION_CODE(NODE) (DECL_CHECK (NODE)->decl.u1.f)
+#define DECL_FUNCTION_CODE(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.u1.f)
/* The DECL_VINDEX is used for FUNCTION_DECLS in two different ways.
Before the struct containing the FUNCTION_DECL is laid out,
/* For FIELD_DECLS, DECL_FCONTEXT is the *first* baseclass in
which this FIELD_DECL is defined. This information is needed when
writing debugging information about vfield and vbase decls for C++. */
-#define DECL_FCONTEXT(NODE) (DECL_CHECK (NODE)->decl.vindex)
+#define DECL_FCONTEXT(NODE) (FIELD_DECL_CHECK (NODE)->decl.vindex)
/* Every ..._DECL node gets a unique number. */
#define DECL_UID(NODE) (DECL_CHECK (NODE)->decl.uid)
#define DECL_ORIGIN(NODE) \
(DECL_ABSTRACT_ORIGIN (NODE) ? DECL_ABSTRACT_ORIGIN (NODE) : NODE)
-/* Nonzero for any sort of ..._DECL node means this decl node represents
- an inline instance of some original (abstract) decl from an inline function;
- suppress any warnings about shadowing some other variable.
- FUNCTION_DECL nodes can also have their abstract origin set to themselves
- (see save_for_inline_copying). */
+/* Nonzero for any sort of ..._DECL node means this decl node represents an
+ inline instance of some original (abstract) decl from an inline function;
+ suppress any warnings about shadowing some other variable. FUNCTION_DECL
+ nodes can also have their abstract origin set to themselves. */
#define DECL_FROM_INLINE(NODE) (DECL_ABSTRACT_ORIGIN (NODE) != (tree) 0 \
&& DECL_ABSTRACT_ORIGIN (NODE) != (NODE))
nonzero means the detail info about this type is not dumped into stabs.
Instead it will generate cross reference ('x') of names.
This uses the same flag as DECL_EXTERNAL. */
-#define TYPE_DECL_SUPPRESS_DEBUG(NODE) (DECL_CHECK (NODE)->decl.external_flag)
-
+#define TYPE_DECL_SUPPRESS_DEBUG(NODE) \
+(TYPE_DECL_CHECK (NODE)->decl.external_flag)
/* In VAR_DECL and PARM_DECL nodes, nonzero means declared `register'. */
#define DECL_REGISTER(NODE) (DECL_CHECK (NODE)->decl.regdecl_flag)
/* In LABEL_DECL nodes, nonzero means that an error message about
jumping into such a binding contour has been printed for this label. */
-#define DECL_ERROR_ISSUED(NODE) (DECL_CHECK (NODE)->decl.regdecl_flag)
+#define DECL_ERROR_ISSUED(NODE) (LABEL_DECL_CHECK (NODE)->decl.regdecl_flag)
/* In a FIELD_DECL, indicates this field should be bit-packed. */
-#define DECL_PACKED(NODE) (DECL_CHECK (NODE)->decl.regdecl_flag)
+#define DECL_PACKED(NODE) (FIELD_DECL_CHECK (NODE)->decl.regdecl_flag)
/* In a FUNCTION_DECL with a non-zero DECL_CONTEXT, indicates that a
static chain is not needed. */
-#define DECL_NO_STATIC_CHAIN(NODE) (DECL_CHECK (NODE)->decl.regdecl_flag)
+#define DECL_NO_STATIC_CHAIN(NODE) \
+(FUNCTION_DECL_CHECK (NODE)->decl.regdecl_flag)
/* Nonzero in a ..._DECL means this variable is ref'd from a nested function.
For VAR_DECL nodes, PARM_DECL nodes, and FUNCTION_DECL nodes.
/* Nonzero in a FUNCTION_DECL means this function can be substituted
where it is called. */
-#define DECL_INLINE(NODE) (DECL_CHECK (NODE)->decl.inline_flag)
+#define DECL_INLINE(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.inline_flag)
+
+/* In a FUNCTION_DECL, nonzero if the function cannot be inlined. */
+#define DECL_UNINLINABLE(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.uninlinable)
/* Nonzero in a FUNCTION_DECL means this is a built-in function
that is not specified by ansi C and that users are supposed to be allowed
to redefine for any purpose whatever. */
-#define DECL_BUILT_IN_NONANSI(NODE) ((NODE)->common.unsigned_flag)
+#define DECL_BUILT_IN_NONANSI(NODE) \
+(FUNCTION_DECL_CHECK (NODE)->common.unsigned_flag)
/* Nonzero in a FUNCTION_DECL means this function should be treated
as if it were a malloc, meaning it returns a pointer that is
not an alias. */
-#define DECL_IS_MALLOC(NODE) (DECL_CHECK (NODE)->decl.malloc_flag)
+#define DECL_IS_MALLOC(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.malloc_flag)
+
+/* Nonzero in a FUNCTION_DECL means this function should be treated
+ as "pure" function (like const function, but may read global memory). */
+#define DECL_IS_PURE(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.pure_flag)
/* Nonzero in a FIELD_DECL means it is a bit field, and must be accessed
specially. */
-#define DECL_BIT_FIELD(NODE) (DECL_CHECK (NODE)->decl.bit_field_flag)
+#define DECL_BIT_FIELD(NODE) (FIELD_DECL_CHECK (NODE)->decl.bit_field_flag)
/* In a LABEL_DECL, nonzero means label was defined inside a binding
contour that restored a stack level and which is now exited. */
-#define DECL_TOO_LATE(NODE) (DECL_CHECK (NODE)->decl.bit_field_flag)
+#define DECL_TOO_LATE(NODE) (LABEL_DECL_CHECK (NODE)->decl.bit_field_flag)
/* Unused in FUNCTION_DECL. */
/* In a VAR_DECL that's static,
nonzero if the space is in the text section. */
-#define DECL_IN_TEXT_SECTION(NODE) (DECL_CHECK (NODE)->decl.bit_field_flag)
+#define DECL_IN_TEXT_SECTION(NODE) (VAR_DECL_CHECK (NODE)->decl.bit_field_flag)
/* In a FUNCTION_DECL, nonzero means a built in function. */
#define DECL_BUILT_IN(NODE) (DECL_BUILT_IN_CLASS (NODE) != NOT_BUILT_IN)
/* For a builtin function, identify which part of the compiler defined it. */
-#define DECL_BUILT_IN_CLASS(NODE) (DECL_CHECK (NODE)->decl.built_in_class)
+#define DECL_BUILT_IN_CLASS(NODE) \
+(FUNCTION_DECL_CHECK (NODE)->decl.built_in_class)
/* Used in VAR_DECLs to indicate that the variable is a vtable.
Used in FIELD_DECLs for vtable pointers.
/* Used in PARM_DECLs whose type are unions to indicate that the
argument should be passed in the same way that the first union
alternative would be passed. */
-#define DECL_TRANSPARENT_UNION(NODE) (DECL_CHECK (NODE)->decl.transparent_union)
+#define DECL_TRANSPARENT_UNION(NODE) \
+(PARM_DECL_CHECK (NODE)->decl.transparent_union)
/* Used in FUNCTION_DECLs to indicate that they should be run automatically
at the beginning or end of execution. */
-#define DECL_STATIC_CONSTRUCTOR(NODE) (DECL_CHECK (NODE)->decl.static_ctor_flag)
-#define DECL_STATIC_DESTRUCTOR(NODE) (DECL_CHECK (NODE)->decl.static_dtor_flag)
+#define DECL_STATIC_CONSTRUCTOR(NODE) \
+(FUNCTION_DECL_CHECK (NODE)->decl.static_ctor_flag)
+
+#define DECL_STATIC_DESTRUCTOR(NODE) \
+(FUNCTION_DECL_CHECK (NODE)->decl.static_dtor_flag)
/* Used to indicate that this DECL represents a compiler-generated entity. */
#define DECL_ARTIFICIAL(NODE) (DECL_CHECK (NODE)->decl.artificial_flag)
/* Used in FUNCTION_DECLs to indicate that function entry and exit should
be instrumented with calls to support routines. */
-#define DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT(NODE) ((NODE)->decl.no_instrument_function_entry_exit)
+#define DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT(NODE) \
+(FUNCTION_DECL_CHECK (NODE)->decl.no_instrument_function_entry_exit)
/* Used in FUNCTION_DECLs to indicate that check-memory-usage should be
disabled in this function. */
-#define DECL_NO_CHECK_MEMORY_USAGE(NODE) ((NODE)->decl.no_check_memory_usage)
+#define DECL_NO_CHECK_MEMORY_USAGE(NODE) \
+(FUNCTION_DECL_CHECK (NODE)->decl.no_check_memory_usage)
/* Used in FUNCTION_DECLs to indicate that limit-stack-* should be
disabled in this function. */
-#define DECL_NO_LIMIT_STACK(NODE) ((NODE)->decl.no_limit_stack)
+#define DECL_NO_LIMIT_STACK(NODE) \
+(FUNCTION_DECL_CHECK (NODE)->decl.no_limit_stack)
/* Additional flags for language-specific uses. */
#define DECL_LANG_FLAG_0(NODE) (DECL_CHECK (NODE)->decl.lang_flag_0)
an address constant. */
#define DECL_NON_ADDR_CONST_P(NODE) (DECL_CHECK (NODE)->decl.non_addr_const_p)
+/* Used in a FIELD_DECL to indicate that we cannot form the address of
+ this component. */
+#define DECL_NONADDRESSABLE_P(NODE) \
+ (FIELD_DECL_CHECK (NODE)->decl.non_addressable)
+
/* Used to indicate an alias set for the memory pointed to by this
particular FIELD_DECL, PARM_DECL, or VAR_DECL, which must have
pointer (or reference) type. */
#define DECL_POINTER_ALIAS_SET_KNOWN_P(NODE) \
(DECL_POINTER_ALIAS_SET (NODE) != - 1)
+/* The pointer_depth field comprises two bits for values in the range
+ 0..3. The value is normally equal to TYPE_POINTER_DEPTH of decl's
+ type node, but for functions it migth be greater. For example,
+ this can happen when the function is declared to accept a parameter
+ of type void* (depth=1), but is actually called with an argument of
+ type foo** (depth=2). The function type will get the formal
+ parameter's depth, but the function decl will get the actual
+ argument's depth. */
+#define DECL_POINTER_DEPTH(DECL) (DECL_CHECK (DECL)->decl.pointer_depth)
+
struct tree_decl
{
- char common[sizeof (struct tree_common)];
- char *filename;
+ struct tree_common common;
+ const char *filename;
int linenum;
unsigned int uid;
union tree_node *size;
-#ifdef ONLY_INT_FIELDS
- int mode : 8;
-#else
- enum machine_mode mode : 8;
-#endif
+ ENUM_BITFIELD(machine_mode) mode : 8;
unsigned external_flag : 1;
unsigned nonlocal_flag : 1;
unsigned comdat_flag : 1;
unsigned malloc_flag : 1;
unsigned no_limit_stack : 1;
-#ifdef ONLY_INT_FIELDS
- unsigned int built_in_class : 2;
-#else
- enum built_in_class built_in_class : 2;
-#endif
+ ENUM_BITFIELD(built_in_class) built_in_class : 2;
+
+ unsigned pure_flag : 1;
+ unsigned pointer_depth : 2;
+ unsigned non_addressable : 1;
+ unsigned user_align : 1;
+ unsigned uninlinable : 1;
+ /* Two unused bits. */
unsigned lang_flag_0 : 1;
unsigned lang_flag_1 : 1;
unsigned lang_flag_6 : 1;
unsigned lang_flag_7 : 1;
- /* For a FUNCTION_DECL, if inline, this is the size of frame needed.
- If built-in, this is the code for which built-in function.
- For other kinds of decls, this is DECL_ALIGN. */
union {
- HOST_WIDE_INT i;
- unsigned int u;
+ /* In a FUNCTION_DECL for which DECL_BUILT_IN holds, this is
+ DECL_FUNCTION_CODE. */
enum built_in_function f;
+ /* In a FUNCITON_DECL for which DECL_BUILT_IN does not hold, this
+ is used by language-dependent code. */
+ HOST_WIDE_INT i;
+ /* DECL_ALIGN and DECL_OFFSET_ALIGN. (These are not used for
+ FUNCTION_DECLs). */
+ struct {unsigned int align : 24; unsigned int off_align : 8;} a;
} u1;
union tree_node *size_unit;
union tree_node *name;
union tree_node *context;
- union tree_node *arguments; /* Also used for DECL_FIELD_BITPOS */
+ union tree_node *arguments; /* Also used for DECL_FIELD_OFFSET */
union tree_node *result; /* Also used for DECL_BIT_FIELD_TYPE */
union tree_node *initial; /* Also used for DECL_QUALIFIER */
union tree_node *abstract_origin;
struct rtx_def *live_range_rtl;
/* In FUNCTION_DECL, if it is inline, holds the saved insn chain.
+ In FIELD_DECL, is DECL_FIELD_BIT_OFFSET.
In PARM_DECL, holds an RTL for the stack slot
of register where the data was actually passed.
Used by Chill and Java in LABEL_DECL and by C++ and Java in VAR_DECL. */
} u2;
union tree_node *vindex;
- int pointer_alias_set;
+ HOST_WIDE_INT pointer_alias_set;
/* Points to a structure whose details depend on the language in use. */
struct lang_decl *lang_specific;
};
TI_INTEGER_ZERO,
TI_INTEGER_ONE,
+ TI_INTEGER_MINUS_ONE,
TI_NULL_POINTER,
TI_SIZE_ZERO,
TI_SIZE_ONE,
-
+
+ TI_BITSIZE_ZERO,
+ TI_BITSIZE_ONE,
+ TI_BITSIZE_UNIT,
+
TI_COMPLEX_INTEGER_TYPE,
TI_COMPLEX_FLOAT_TYPE,
TI_COMPLEX_DOUBLE_TYPE,
TI_PTRDIFF_TYPE,
TI_VA_LIST_TYPE,
+ TI_VOID_LIST_NODE,
+
+ TI_V4SF_TYPE,
+ TI_V4SI_TYPE,
+ TI_V8QI_TYPE,
+ TI_V4HI_TYPE,
+ TI_V2SI_TYPE,
+
+ TI_MAIN_IDENTIFIER,
+
TI_MAX
};
#define integer_zero_node global_trees[TI_INTEGER_ZERO]
#define integer_one_node global_trees[TI_INTEGER_ONE]
+#define integer_minus_one_node global_trees[TI_INTEGER_MINUS_ONE]
#define size_zero_node global_trees[TI_SIZE_ZERO]
#define size_one_node global_trees[TI_SIZE_ONE]
+#define bitsize_zero_node global_trees[TI_BITSIZE_ZERO]
+#define bitsize_one_node global_trees[TI_BITSIZE_ONE]
+#define bitsize_unit_node global_trees[TI_BITSIZE_UNIT]
+
#define null_pointer_node global_trees[TI_NULL_POINTER]
#define float_type_node global_trees[TI_FLOAT_TYPE]
#define ptrdiff_type_node global_trees[TI_PTRDIFF_TYPE]
#define va_list_type_node global_trees[TI_VA_LIST_TYPE]
+/* The node that should be placed at the end of a parameter list to
+ indicate that the function does not take a variable number of
+ arguments. The TREE_VALUE will be void_type_node and there will be
+ no TREE_CHAIN. Language-independent code should not assume
+ anything else about this node. */
+#define void_list_node global_trees[TI_VOID_LIST_NODE]
+
+#define main_identifier_node global_trees[TI_MAIN_IDENTIFIER]
+#define MAIN_NAME_P(NODE) (IDENTIFIER_NODE_CHECK (NODE) == main_identifier_node)
+
+#define V4SF_type_node global_trees[TI_V4SF_TYPE]
+#define V4SI_type_node global_trees[TI_V4SI_TYPE]
+#define V8QI_type_node global_trees[TI_V8QI_TYPE]
+#define V4HI_type_node global_trees[TI_V4HI_TYPE]
+#define V2SI_type_node global_trees[TI_V2SI_TYPE]
+
/* An enumeration of the standard C integer types. These must be
ordered so that shorter types appear before longer ones. */
enum integer_type_kind
\f
#define NULL_TREE (tree) NULL
-/* The following functions accept a wide integer argument. Rather than
- having to cast on every function call, we use a macro instead, that is
- defined here and in rtl.h. */
+/* Approximate positive square root of a host double. This is for
+ statistical reports, not code generation. */
+extern double approx_sqrt PARAMS ((double));
-#ifndef exact_log2
-#define exact_log2(N) exact_log2_wide ((unsigned HOST_WIDE_INT) (N))
-#define floor_log2(N) floor_log2_wide ((unsigned HOST_WIDE_INT) (N))
-#endif
-extern int exact_log2_wide PARAMS ((unsigned HOST_WIDE_INT));
-extern int floor_log2_wide PARAMS ((unsigned HOST_WIDE_INT));
-
-extern char *oballoc PARAMS ((int));
extern char *permalloc PARAMS ((int));
-extern char *savealloc PARAMS ((int));
extern char *expralloc PARAMS ((int));
+/* Compute the number of bytes occupied by 'node'. This routine only
+ looks at TREE_CODE and, if the code is TREE_VEC, TREE_VEC_LENGTH. */
+
+extern size_t tree_size PARAMS ((tree));
+
/* Lowest level primitive for allocating a node.
The TREE_CODE is the only argument. Contents are initialized
to zero except for a few of the common fields. */
/* Construct various types of nodes. */
#define build_int_2(LO,HI) \
- build_int_2_wide ((HOST_WIDE_INT) (LO), (HOST_WIDE_INT) (HI))
+ build_int_2_wide ((unsigned HOST_WIDE_INT) (LO), (HOST_WIDE_INT) (HI))
extern tree build PARAMS ((enum tree_code, tree, ...));
extern tree build_nt PARAMS ((enum tree_code, ...));
-extern tree build_parse_node PARAMS ((enum tree_code, ...));
-extern tree build_int_2_wide PARAMS ((HOST_WIDE_INT, HOST_WIDE_INT));
+extern tree build_int_2_wide PARAMS ((unsigned HOST_WIDE_INT, HOST_WIDE_INT));
extern tree build_real PARAMS ((tree, REAL_VALUE_TYPE));
extern tree build_real_from_int_cst PARAMS ((tree, tree));
extern tree build_complex PARAMS ((tree, tree, tree));
extern tree build_string PARAMS ((int, const char *));
extern tree build1 PARAMS ((enum tree_code, tree, tree));
extern tree build_tree_list PARAMS ((tree, tree));
-extern tree build_decl_list PARAMS ((tree, tree));
-extern tree build_expr_list PARAMS ((tree, tree));
extern tree build_decl PARAMS ((enum tree_code, tree, tree));
extern tree build_block PARAMS ((tree, tree, tree, tree, tree));
extern tree build_expr_wfl PARAMS ((tree, const char *, int, int));
extern void fixup_unsigned_type PARAMS ((tree));
extern tree build_pointer_type PARAMS ((tree));
extern tree build_reference_type PARAMS ((tree));
+extern tree build_type_no_quals PARAMS ((tree));
extern tree build_index_type PARAMS ((tree));
extern tree build_index_2_type PARAMS ((tree, tree));
extern tree build_array_type PARAMS ((tree, tree));
extern int attribute_list_contained PARAMS ((tree, tree));
extern int tree_int_cst_equal PARAMS ((tree, tree));
extern int tree_int_cst_lt PARAMS ((tree, tree));
+extern int tree_int_cst_compare PARAMS ((tree, tree));
extern int host_integerp PARAMS ((tree, int));
extern HOST_WIDE_INT tree_low_cst PARAMS ((tree, int));
extern int tree_int_cst_msb PARAMS ((tree));
extern int tree_int_cst_sgn PARAMS ((tree));
+extern int tree_expr_nonnegative_p PARAMS ((tree));
+extern int rtl_expr_nonnegative_p PARAMS ((struct rtx_def *));
extern int index_type_equal PARAMS ((tree, tree));
extern tree get_inner_array_type PARAMS ((tree));
extern tree merge_attributes PARAMS ((tree, tree));
-/* Given a type node TYPE and a TYPE_QUALIFIER_SET, return a type for
- the same kind of data as TYPE describes. Variants point to the
- "main variant" (which has no qualifiers set) via TYPE_MAIN_VARIANT,
- and it points to a chain of other variants so that duplicate
- variants are never made. Only main variants should ever appear as
- types of expressions. */
+/* Return a version of the TYPE, qualified as indicated by the
+ TYPE_QUALS, if one exists. If no qualified version exists yet,
+ return NULL_TREE. */
+
+extern tree get_qualified_type PARAMS ((tree, int));
+
+/* Like get_qualified_type, but creates the type if it does not
+ exist. This function never returns NULL_TREE. */
extern tree build_qualified_type PARAMS ((tree, int));
/* These functions allow a front-end to perform a manual layout of a
RECORD_TYPE. (For instance, if the placement of subsequent fields
depends on the placement of fields so far.) Begin by calling
- new_record_layout_info. Then, call layout_field for each of the
+ start_record_layout. Then, call place_field for each of the
fields. Then, call finish_record_layout. See layout_type for the
default way in which these functions are used. */
-struct record_layout_info_s
+typedef struct record_layout_info_s
{
/* The RECORD_TYPE that we are laying out. */
tree t;
- /* The size of the record so far, in bits. */
- unsigned HOST_WIDE_INT const_size;
+ /* The offset into the record so far, in bytes, not including bits in
+ BITPOS. */
+ tree offset;
+ /* The last known alignment of SIZE. */
+ unsigned int offset_align;
+ /* The bit position within the last OFFSET_ALIGN bits, in bits. */
+ tree bitpos;
/* The alignment of the record so far, in bits. */
unsigned int record_align;
- /* If the record can have a variable size, then this will be
- non-NULL, and the total size will be CONST_SIZE + VAR_SIZE. */
- tree var_size;
- /* If the record can have a variable size, then this will be the
- maximum alignment that we know VAR_SIZE has. */
- unsigned int var_align;
+ /* The alignment of the record so far, not including padding, in bits. */
+ unsigned int unpacked_align;
+ /* The alignment of the record so far, allowing for the record to be
+ padded only at the end, in bits. */
+ unsigned int unpadded_align;
/* The static variables (i.e., class variables, as opposed to
instance variables) encountered in T. */
tree pending_statics;
- unsigned int unpacked_align;
int packed_maybe_necessary;
-};
-
-typedef struct record_layout_info_s *record_layout_info;
-
-extern record_layout_info new_record_layout_info
- PARAMS ((tree));
-extern void layout_field PARAMS ((record_layout_info, tree));
-extern void finish_record_layout PARAMS ((record_layout_info));
+} *record_layout_info;
+
+extern void set_lang_adjust_rli PARAMS ((void (*) PARAMS
+ ((record_layout_info))));
+extern record_layout_info start_record_layout PARAMS ((tree));
+extern tree bit_from_pos PARAMS ((tree, tree));
+extern tree byte_from_pos PARAMS ((tree, tree));
+extern void pos_from_byte PARAMS ((tree *, tree *, unsigned int,
+ tree));
+extern void pos_from_bit PARAMS ((tree *, tree *, unsigned int,
+ tree));
+extern void normalize_offset PARAMS ((tree *, tree *,
+ unsigned int));
+extern tree rli_size_unit_so_far PARAMS ((record_layout_info));
+extern tree rli_size_so_far PARAMS ((record_layout_info));
+extern void normalize_rli PARAMS ((record_layout_info));
+extern void place_field PARAMS ((record_layout_info, tree));
+extern void compute_record_mode PARAMS ((tree));
+extern void finish_record_layout PARAMS ((record_layout_info));
/* Given a hashcode and a ..._TYPE node (for which the hashcode was made),
return a canonicalized ..._TYPE node, so that duplicates are not made.
extern HOST_WIDE_INT int_size_in_bytes PARAMS ((tree));
extern tree bit_position PARAMS ((tree));
extern HOST_WIDE_INT int_bit_position PARAMS ((tree));
+extern tree byte_position PARAMS ((tree));
+extern HOST_WIDE_INT int_byte_position PARAMS ((tree));
/* Define data structures, macros, and functions for handling sizes
and the various types used to represent sizes. */
#define sbitsize_int(L) size_int_wide ((HOST_WIDE_INT) (L), SBITSIZETYPE)
extern tree round_up PARAMS ((tree, int));
+extern tree round_down PARAMS ((tree, int));
extern tree get_pending_sizes PARAMS ((void));
+extern int is_pending_size PARAMS ((tree));
+extern void put_pending_size PARAMS ((tree));
extern void put_pending_sizes PARAMS ((tree));
/* Type for sizes of data-type. */
/* Make a new TREE_LIST node from specified PURPOSE, VALUE and CHAIN. */
extern tree tree_cons PARAMS ((tree, tree, tree));
-extern tree perm_tree_cons PARAMS ((tree, tree, tree));
-extern tree temp_tree_cons PARAMS ((tree, tree, tree));
-extern tree saveable_tree_cons PARAMS ((tree, tree, tree));
-extern tree decl_tree_cons PARAMS ((tree, tree, tree));
-extern tree expr_tree_cons PARAMS ((tree, tree, tree));
/* Return the last tree node in a chain. */
extern void (*lang_unsave) PARAMS ((tree *));
extern void (*lang_unsave_expr_now) PARAMS ((tree));
-/* If non-null, a language specific version of safe_for_unsave. */
-extern int (*lang_safe_for_unsave) PARAMS ((tree));
+/* Return 0 if it is safe to evaluate EXPR multiple times,
+ return 1 if it is safe if EXPR is unsaved afterward, or
+ return 2 if it is completely unsafe. */
+extern int unsafe_for_reeval PARAMS ((tree));
-/* Return nonzero if it is safe to unsave EXPR, else return zero.
- It is not safe to unsave EXPR if it contains any embedded RTL_EXPRs. */
-extern int safe_for_unsave PARAMS ((tree));
+/* If non-null, these are language-specific helper functions for
+ unsafe_for_reeval. Return negative to not handle some tree. */
+extern int (*lang_unsafe_for_reeval) PARAMS ((tree));
/* Return 1 if EXP contains a PLACEHOLDER_EXPR; i.e., if it represents a size
or offset that depends on a field within a record.
look for nested component-refs or array-refs at constant positions
and find the ultimate containing object, which is returned. */
-extern tree get_inner_reference PARAMS ((tree, int *, int *, tree *,
- enum machine_mode *, int *,
- int *, unsigned int *));
+extern tree get_inner_reference PARAMS ((tree, HOST_WIDE_INT *,
+ HOST_WIDE_INT *, tree *,
+ enum machine_mode *, int *,
+ int *, unsigned int *));
/* Given a DECL or TYPE, return the scope in which it was declared, or
NUL_TREE if there is no containing scope. */
/* Points to the name of the input file from which the current input
being parsed originally came (before it went into cpp). */
-extern char *input_filename;
+extern const char *input_filename;
/* Current line number in input file. */
extern int lineno;
-/* Nonzero for -pedantic switch: warn about anything
- that standard C forbids. */
-extern int pedantic;
-
/* Nonzero means lvalues are limited to those valid in pedantic ANSI C.
Zero means allow extended lvalues. */
extern void (*incomplete_decl_finalize_hook) PARAMS ((tree));
-extern char *init_parse PARAMS ((char *));
+extern const char *init_parse PARAMS ((const char *));
extern void finish_parse PARAMS ((void));
extern const char * const language_string;
\f
/* In tree.c */
extern char *perm_calloc PARAMS ((int, long));
-extern tree get_file_function_name PARAMS ((int));
+extern void clean_symbol_name PARAMS ((char *));
extern tree get_file_function_name_long PARAMS ((const char *));
extern tree get_set_constructor_bits PARAMS ((tree, char *, int));
extern tree get_set_constructor_bytes PARAMS ((tree,
unsigned char *, int));
-extern int get_alias_set PARAMS ((tree));
-extern int new_alias_set PARAMS ((void));
-extern int (*lang_get_alias_set) PARAMS ((tree));
extern tree get_callee_fndecl PARAMS ((tree));
+extern void set_decl_assembler_name PARAMS ((tree));
+extern int type_num_arguments PARAMS ((tree));
\f
/* In stmt.c */
extern void expand_start_elseif PARAMS ((tree));
extern struct nesting *expand_start_loop PARAMS ((int));
extern struct nesting *expand_start_loop_continue_elsewhere PARAMS ((int));
+extern struct nesting *expand_start_null_loop PARAMS ((void));
extern void expand_loop_continue_here PARAMS ((void));
extern void expand_end_loop PARAMS ((void));
+extern void expand_end_null_loop PARAMS ((void));
extern int expand_continue_loop PARAMS ((struct nesting *));
extern int expand_exit_loop PARAMS ((struct nesting *));
extern int expand_exit_loop_if_false PARAMS ((struct nesting *,
tree));
extern int expand_exit_something PARAMS ((void));
-extern void expand_null_return PARAMS ((void));
extern void expand_return PARAMS ((tree));
extern int optimize_tail_recursion PARAMS ((tree, struct rtx_def *));
extern void expand_start_bindings_and_block PARAMS ((int, tree));
extern void end_cleanup_deferral PARAMS ((void));
extern int is_body_block PARAMS ((tree));
-extern void mark_block_as_eh_region PARAMS ((void));
-extern void mark_block_as_not_eh_region PARAMS ((void));
-extern int is_eh_region PARAMS ((void));
extern int conditional_context PARAMS ((void));
extern tree last_cleanup_this_contour PARAMS ((void));
-extern int expand_dhc_cleanup PARAMS ((tree));
-extern int expand_dcc_cleanup PARAMS ((tree));
extern void expand_start_case PARAMS ((int, tree, tree,
const char *));
extern void expand_end_case PARAMS ((tree));
+extern int add_case_node PARAMS ((tree, tree,
+ tree, tree *));
extern int pushcase PARAMS ((tree,
tree (*) (tree, tree),
tree, tree *));
change. Required by any language that supports variadic arguments. */
extern tree (*lang_type_promotes_to) PARAMS ((tree));
-\f
-/* Interface of the DWARF2 unwind info support. */
-
-/* Decide whether we want to emit frame unwind information for the current
- translation unit. */
-
-extern int dwarf2out_do_frame PARAMS ((void));
-
-/* Generate a new label for the CFI info to refer to. */
-
-extern char *dwarf2out_cfi_label PARAMS ((void));
-
-/* Entry point to update the canonical frame address (CFA). */
-
-extern void dwarf2out_def_cfa PARAMS ((char *, unsigned, long));
-
-/* Add the CFI for saving a register window. */
-
-extern void dwarf2out_window_save PARAMS ((char *));
-
-/* Add a CFI to update the running total of the size of arguments pushed
- onto the stack. */
-
-extern void dwarf2out_args_size PARAMS ((char *, long));
-
-/* Entry point for saving a register to the stack. */
-
-extern void dwarf2out_reg_save PARAMS ((char *, unsigned, long));
-
-/* Entry point for saving the return address in the stack. */
-
-extern void dwarf2out_return_save PARAMS ((char *, long));
-
-/* Entry point for saving the return address in a register. */
-
-extern void dwarf2out_return_reg PARAMS ((char *, unsigned));
-
-/* Output a marker (i.e. a label) for the beginning of a function, before
- the prologue. */
-
-extern void dwarf2out_begin_prologue PARAMS ((void));
-
-/* Output a marker (i.e. a label) for the absolute end of the generated
- code for a function definition. */
-
-extern void dwarf2out_end_epilogue PARAMS ((void));
+extern tree fold_builtin PARAMS ((tree));
\f
/* The language front-end must define these functions. */
-/* Function of no arguments for initializing options. */
-extern void lang_init_options PARAMS ((void));
-
/* Function of no arguments for initializing lexical scanning. */
extern void init_lex PARAMS ((void));
/* Function of no arguments for initializing the symbol table. */
extern void init_decl_processing PARAMS ((void));
-/* Functions called with no arguments at the beginning and end or processing
- the input source file. */
-extern void lang_init PARAMS ((void));
-extern void lang_finish PARAMS ((void));
-
/* Function to identify which front-end produced the output file. */
extern const char *lang_identify PARAMS ((void));
/* Function called with no arguments to parse and compile the input. */
extern int yyparse PARAMS ((void));
-/* Function called with option as argument
- to decode options starting with -f or -W or +.
- It should return nonzero if it handles the option. */
-extern int lang_decode_option PARAMS ((int, char **));
-
/* Functions for processing symbol declarations. */
/* Function to enter a new lexical scope.
Takes one argument: always zero when called from outside the front end. */
extern tree build_range_type PARAMS ((tree, tree, tree));
-/* Call when starting to parse a declaration:
- make expressions in the declaration last the length of the function.
- Returns an argument that should be passed to resume_momentary later. */
-extern int suspend_momentary PARAMS ((void));
-
-extern int allocation_temporary_p PARAMS ((void));
+/* In alias.c */
+extern void record_component_aliases PARAMS ((tree));
+extern HOST_WIDE_INT get_alias_set PARAMS ((tree));
+extern int alias_sets_conflict_p PARAMS ((HOST_WIDE_INT,
+ HOST_WIDE_INT));
+extern int readonly_fields_p PARAMS ((tree));
+extern int objects_must_conflict_p PARAMS ((tree, tree));
-/* Call when finished parsing a declaration:
- restore the treatment of node-allocation that was
- in effect before the suspension.
- YES should be the value previously returned by suspend_momentary. */
-extern void resume_momentary PARAMS ((int));
-
-/* Called after finishing a record, union or enumeral type. */
-extern void rest_of_type_compilation PARAMS ((tree, int));
-
-/* Save the current set of obstacks, but don't change them. */
-extern void push_obstacks_nochange PARAMS ((void));
-
-extern void permanent_allocation PARAMS ((int));
-
-extern void push_momentary PARAMS ((void));
-
-extern void clear_momentary PARAMS ((void));
-
-extern void pop_momentary PARAMS ((void));
+/* In c-common.c */
+extern HOST_WIDE_INT lang_get_alias_set PARAMS ((tree));
-extern void end_temporary_allocation PARAMS ((void));
+/* Set the DECL_ASSEMBLER_NAME for a node. If it is the sort of thing
+ that the assembler should talk about, set DECL_ASSEMBLER_NAME to an
+ appropriate IDENTIFIER_NODE. Otherwise, set it to the
+ ERROR_MARK_NODE to ensure that the assembler does not talk about
+ it. */
+extern void (*lang_set_decl_assembler_name) PARAMS ((tree));
-/* Pop the obstack selection stack. */
-extern void pop_obstacks PARAMS ((void));
+struct obstack;
/* In tree.c */
extern int really_constant_p PARAMS ((tree));
-extern void push_obstacks PARAMS ((struct obstack *,
- struct obstack *));
-extern void pop_momentary_nofree PARAMS ((void));
-extern void preserve_momentary PARAMS ((void));
-extern void saveable_allocation PARAMS ((void));
-extern void temporary_allocation PARAMS ((void));
-extern void resume_temporary_allocation PARAMS ((void));
-extern tree get_file_function_name PARAMS ((int));
extern void set_identifier_size PARAMS ((int));
extern int int_fits_type_p PARAMS ((tree, tree));
extern int tree_log2 PARAMS ((tree));
extern int tree_floor_log2 PARAMS ((tree));
-extern void preserve_initializer PARAMS ((void));
extern void preserve_data PARAMS ((void));
extern int object_permanent_p PARAMS ((tree));
extern int type_precision PARAMS ((tree));
extern void type_hash_add PARAMS ((unsigned int, tree));
extern unsigned int type_hash_list PARAMS ((tree));
extern int simple_cst_list_equal PARAMS ((tree, tree));
-extern void debug_obstack PARAMS ((char *));
-extern void rtl_in_current_obstack PARAMS ((void));
-extern void rtl_in_saveable_obstack PARAMS ((void));
-extern void init_tree_codes PARAMS ((void));
extern void dump_tree_statistics PARAMS ((void));
extern void print_obstack_statistics PARAMS ((const char *,
struct obstack *));
#ifdef BUFSIZ
-extern void print_obstack_name PARAMS ((char *, FILE *, const char *));
+extern void print_obstack_name PARAMS ((char *, FILE *,
+ const char *));
#endif
-extern void expand_function_end PARAMS ((char *, int, int));
+extern void expand_function_end PARAMS ((const char *, int, int));
extern void expand_function_start PARAMS ((tree, int));
+extern void expand_pending_sizes PARAMS ((tree));
+
extern int real_onep PARAMS ((tree));
extern int real_twop PARAMS ((tree));
-extern void start_identifier_warnings PARAMS ((void));
extern void gcc_obstack_init PARAMS ((struct obstack *));
extern void init_obstacks PARAMS ((void));
-extern void obfree PARAMS ((char *));
extern void build_common_tree_nodes PARAMS ((int));
extern void build_common_tree_nodes_2 PARAMS ((int));
+extern void mark_tree_hashtable PARAMS ((void *));
/* In function.c */
extern void setjmp_protect_args PARAMS ((void));
extern void init_dummy_function_start PARAMS ((void));
extern void expand_dummy_function_end PARAMS ((void));
extern void init_function_for_compilation PARAMS ((void));
-extern void init_function_start PARAMS ((tree, char *, int));
+extern void init_function_start PARAMS ((tree, const char *, int));
extern void assign_parms PARAMS ((tree));
extern void put_var_into_stack PARAMS ((tree));
+extern void flush_addressof PARAMS ((tree));
extern void uninitialized_vars_warning PARAMS ((tree));
extern void setjmp_args_warning PARAMS ((void));
extern void mark_all_temps_used PARAMS ((void));
/* In print-tree.c */
extern void debug_tree PARAMS ((tree));
#ifdef BUFSIZ
-extern void print_node PARAMS ((FILE *, const char *, tree, int));
-extern void print_node_brief PARAMS ((FILE *, const char *, tree, int));
+extern void print_node PARAMS ((FILE *, const char *, tree,
+ int));
+extern void print_node_brief PARAMS ((FILE *, const char *, tree,
+ int));
extern void indent_to PARAMS ((FILE *, int));
#endif
/* In expr.c */
-extern void emit_queue PARAMS ((void));
extern int apply_args_register_offset PARAMS ((int));
extern struct rtx_def *expand_builtin_return_addr
PARAMS ((enum built_in_function, int, struct rtx_def *));
-extern void do_pending_stack_adjust PARAMS ((void));
-extern struct rtx_def *expand_assignment PARAMS ((tree, tree, int, int));
-extern struct rtx_def *store_expr PARAMS ((tree, struct rtx_def *,
- int));
extern void check_max_integer_computation_mode PARAMS ((tree));
/* In emit-rtl.c */
extern void start_sequence_for_rtl_expr PARAMS ((tree));
-extern struct rtx_def *emit_line_note_after PARAMS ((const char *, int,
- struct rtx_def *));
extern struct rtx_def *emit_line_note PARAMS ((const char *, int));
-extern struct rtx_def *emit_line_note_force PARAMS ((const char *, int));
/* In calls.c */
-extern void special_function_p PARAMS ((tree, int *, int *,
- int *, int *, int *));
-/* In c-typeck.c */
+extern int setjmp_call_p PARAMS ((tree));
+
+/* In front end. */
+
extern int mark_addressable PARAMS ((tree));
extern void incomplete_type_error PARAMS ((tree, tree));
-
-/* In c-lang.c */
extern void print_lang_statistics PARAMS ((void));
-
-/* In c-common.c */
extern tree truthvalue_conversion PARAMS ((tree));
-extern void split_specs_attrs PARAMS ((tree, tree *, tree *));
-
-/* In c-decl.c */
#ifdef BUFSIZ
extern void print_lang_decl PARAMS ((FILE *, tree, int));
extern void print_lang_type PARAMS ((FILE *, tree, int));
extern void insert_block PARAMS ((tree));
/* In integrate.c */
-extern void save_for_inline_nocopy PARAMS ((tree));
-extern void save_for_inline_copying PARAMS ((tree));
+extern void save_for_inline PARAMS ((tree));
extern void set_decl_abstract_flags PARAMS ((tree, int));
extern void output_inline_function PARAMS ((tree));
+extern void set_decl_origin_self PARAMS ((tree));
-/* In c-lex.c */
+/* In front end. */
extern void set_yydebug PARAMS ((int));
/* In stor-layout.c */
extern void fixup_signed_type PARAMS ((tree));
+extern void internal_reference_types PARAMS ((void));
/* varasm.c */
-extern void make_decl_rtl PARAMS ((tree, const char *, int));
+extern void make_decl_rtl PARAMS ((tree, const char *));
extern void make_decl_one_only PARAMS ((tree));
extern int supports_one_only PARAMS ((void));
extern void variable_section PARAMS ((tree, int));
/* In stmt.c */
extern void emit_nop PARAMS ((void));
extern void expand_computed_goto PARAMS ((tree));
-extern struct rtx_def *label_rtx PARAMS ((tree));
extern void expand_asm_operands PARAMS ((tree, tree, tree, tree, int,
- char *, int));
+ const char *, int));
extern int any_pending_cleanups PARAMS ((int));
extern void init_stmt PARAMS ((void));
extern void init_stmt_for_function PARAMS ((void));
extern void expand_start_target_temps PARAMS ((void));
extern void expand_end_target_temps PARAMS ((void));
extern void expand_elseif PARAMS ((tree));
+extern void save_stack_pointer PARAMS ((void));
extern void expand_decl PARAMS ((tree));
extern int expand_decl_cleanup PARAMS ((tree, tree));
extern void expand_anon_union_decl PARAMS ((tree, tree, tree));
/* Entry point to update the canonical frame address (CFA). */
-extern void dwarf2out_def_cfa PARAMS ((char *, unsigned, long));
+extern void dwarf2out_def_cfa PARAMS ((const char *, unsigned, long));
/* Add the CFI for saving a register window. */
-extern void dwarf2out_window_save PARAMS ((char *));
+extern void dwarf2out_window_save PARAMS ((const char *));
/* Add a CFI to update the running total of the size of arguments pushed
onto the stack. */
-extern void dwarf2out_args_size PARAMS ((char *, long));
+extern void dwarf2out_args_size PARAMS ((const char *, long));
/* Entry point for saving a register to the stack. */
-extern void dwarf2out_reg_save PARAMS ((char *, unsigned, long));
+extern void dwarf2out_reg_save PARAMS ((const char *, unsigned, long));
/* Entry point for saving the return address in the stack. */
-extern void dwarf2out_return_save PARAMS ((char *, long));
+extern void dwarf2out_return_save PARAMS ((const char *, long));
/* Entry point for saving the return address in a register. */
-extern void dwarf2out_return_reg PARAMS ((char *, unsigned));
+extern void dwarf2out_return_reg PARAMS ((const char *, unsigned));
/* Output a marker (i.e. a label) for the beginning of a function, before
the prologue. */
code for a function definition. */
extern void dwarf2out_end_epilogue PARAMS ((void));
-
+\f
/* Redefine abort to report an internal error w/o coredump, and
reporting the location of the error in the source file. This logic
is duplicated in rtl.h and tree.h because every file that needs the
extern void fancy_abort PARAMS ((const char *, int, const char *))
ATTRIBUTE_NORETURN;
-#if (GCC_VERSION >= 2007)
-#define abort() fancy_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)
-#else
-#define abort() fancy_abort (__FILE__, __LINE__, 0)
-#endif
+#define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__)
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