/* Front-end tree definitions for GNU compiler.
- Copyright (C) 1989, 93-98, 1999, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1989, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000
+ Free Software Foundation, Inc.
This file is part of GNU CC.
#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. */
extern const char *tree_code_name[MAX_TREE_CODES];
\f
-/* Classify which part of the compiler has defined a given builtin
- function. */
+/* Classify which part of the compiler has defined a given builtin function.
+ Note that we assume below that this is no more than two bits. */
enum built_in_class
{
NOT_BUILT_IN = 0,
BUILT_IN_MD,
BUILT_IN_NORMAL
};
+
+/* Names for the above. */
+extern const char *const built_in_class_names[4];
+
/* Codes that identify the various built in functions
so that expand_call can identify them quickly. */
+#define DEF_BUILTIN(x) x,
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 asm_written_flag: 1;
unsigned used_flag : 1;
- unsigned raises_flag : 1;
+ unsigned nothrow_flag : 1;
unsigned static_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. */
};
/* 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_READONLY in
all expressions
- ITERATOR_BOUND_P in
- VAR_DECL if iterator (C)
TYPE_READONLY in
..._TYPE
TREE_USED in
expressions, IDENTIFIER_NODE
- raises_flag:
+ nothrow_flag:
+
+ TREE_NOTHROW in
+ CALL_EXPR, FUNCTION_DECL
- TREE_RAISES in
- expressions
+ bounded_flag:
+
+ TREE_BOUNDED in
+ expressions, VAR_DECL, PARM_DECL, FIELD_DECL, FUNCTION_DECL
+ 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). */
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.
/* 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. */
+ 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.
was used. */
#define TREE_USED(NODE) ((NODE)->common.used_flag)
-/* Nonzero for a tree node whose evaluation could result
- in the raising of an exception. Not implemented yet. */
-#define TREE_RAISES(NODE) ((NODE)->common.raises_flag)
+/* In a FUNCTION_DECL, nonzero means a call to the function cannot throw
+ an exception. In a CALL_EXPR, nonzero means the call cannot throw. */
+#define TREE_NOTHROW(NODE) ((NODE)->common.nothrow_flag)
/* Used in classes in C++. */
#define TREE_PRIVATE(NODE) ((NODE)->common.private_flag)
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) \
|| (TREE_INT_CST_HIGH (A) == TREE_INT_CST_HIGH (B) \
- && ((unsigned HOST_WIDE_INT) TREE_INT_CST_LOW (A) \
- < (unsigned HOST_WIDE_INT) TREE_INT_CST_LOW (B))))
+ && TREE_INT_CST_LOW (A) < TREE_INT_CST_LOW (B)))
#define INT_CST_LT_UNSIGNED(A, B) \
(((unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (A) \
< (unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (B)) \
|| (((unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (A) \
- == (unsigned HOST_WIDE_INT ) TREE_INT_CST_HIGH (B)) \
- && (((unsigned HOST_WIDE_INT) TREE_INT_CST_LOW (A) \
- < (unsigned HOST_WIDE_INT) TREE_INT_CST_LOW (B)))))
+ == (unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (B)) \
+ && TREE_INT_CST_LOW (A) < TREE_INT_CST_LOW (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 */
- 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;
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;
struct tree_identifier
{
- char common[sizeof (struct tree_common)];
+ struct tree_common common;
int length;
- char *pointer;
+ const char *pointer;
};
/* 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];
};
struct tree_exp
{
- char common[sizeof (struct tree_common)];
+ struct tree_common common;
int complexity;
union tree_node *operands[1];
};
listed in the BLOCK_VARS slot. */
#define BLOCK_HANDLER_BLOCK(NODE) (BLOCK_CHECK (NODE)->block.handler_block_flag)
+/* An index number for this block. These values are not guaranteed to
+ be unique across functions -- whether or not they are depends on
+ the debugging output format in use. */
+#define BLOCK_NUMBER(NODE) (BLOCK_CHECK (NODE)->block.block_num)
+
struct tree_block
{
- char common[sizeof (struct tree_common)];
+ struct tree_common common;
unsigned handler_block_flag : 1;
unsigned abstract_flag : 1;
+ unsigned block_num : 30;
union tree_node *vars;
union tree_node *subblocks;
#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)
+
#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) \
+ (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
- 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 *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;
};
#define BINFO_VPTR_FIELD(NODE) TREE_VEC_ELT ((NODE), 5)
/* The size of a base class subobject of this type. Not all frontends
- currently allocate the space for this field. */
+ currently allocate the space for these fields. */
#define BINFO_SIZE(NODE) TREE_VEC_ELT ((NODE), 6)
+#define BINFO_SIZE_UNIT(NODE) TREE_VEC_ELT ((NODE), 7)
#define TYPE_BINFO_SIZE(NODE) BINFO_SIZE (TYPE_BINFO (NODE))
+#define TYPE_BINFO_SIZE_UNIT(NODE) BINFO_SIZE_UNIT (TYPE_BINFO (NODE))
/* Slot used to build a chain that represents a use of inheritance.
For example, if X is derived from Y, and Y is derived from Z,
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) /* In PARM_DECL. */
+#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)
-/* Holds the size of the datum, as a tree expression.
+/* Holds the size of the datum, in bits, as a tree expression.
Need not be constant. */
#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.frame_size.u)
+#define DECL_ALIGN(NODE) (DECL_CHECK (NODE)->decl.u1.a.align)
+/* 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. */
#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.saved_insns.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.saved_insns.f)
+#define DECL_SAVED_INSNS(NODE) (FUNCTION_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.frame_size.i)
+#define DECL_FRAME_SIZE(NODE) (FUNCTION_DECL_CHECK (NODE)->decl.u1.i)
/* 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.frame_size.f.code)
-#define DECL_SET_FUNCTION_CODE(NODE,VAL) (DECL_CHECK (NODE)->decl.frame_size.f.code = (VAL))
-/* For a FIELD_DECL, holds the size of the member as an integer. */
-#define DECL_FIELD_SIZE(NODE) (DECL_CHECK (NODE)->decl.saved_insns.i)
+#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)
/* 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)
-/* 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.frame_size.f.bclass)
+/* 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) \
+(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 artificial_flag : 1;
unsigned weak_flag : 1;
+ unsigned non_addr_const_p : 1;
+ unsigned no_instrument_function_entry_exit : 1;
+ unsigned no_check_memory_usage : 1;
+ unsigned comdat_flag : 1;
+ unsigned malloc_flag : 1;
+ unsigned no_limit_stack : 1;
+ 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;
+ /* Three unused bits. */
+
unsigned lang_flag_0 : 1;
unsigned lang_flag_1 : 1;
unsigned lang_flag_2 : 1;
unsigned lang_flag_6 : 1;
unsigned lang_flag_7 : 1;
- unsigned non_addr_const_p : 1;
- unsigned no_instrument_function_entry_exit : 1;
- unsigned no_check_memory_usage : 1;
- unsigned comdat_flag : 1;
- unsigned malloc_flag : 1;
- unsigned no_limit_stack : 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. */
+ For other kinds of decls, this is DECL_ALIGN and DECL_OFFSET_ALIGN. */
union {
- int i;
- unsigned int u;
- struct
- {
- unsigned int code:24;
- unsigned int bclass:8;
- } f;
- } frame_size;
+ HOST_WIDE_INT i;
+ enum built_in_function f;
+ 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;
- union tree_node *result;
- union tree_node *initial;
+ 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;
union tree_node *assembler_name;
union tree_node *section_name;
union tree_node *machine_attributes;
- struct rtx_def *rtl; /* acts as link to register transfer language
- (rtl) info */
+ struct rtx_def *rtl; /* RTL representation for object. */
struct rtx_def *live_range_rtl;
- /* For FUNCTION_DECLs: points to insn that constitutes its definition
- on the permanent obstack. For FIELD_DECL, this is DECL_FIELD_SIZE. */
+
+ /* 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. */
union {
struct function *f;
struct rtx_def *r;
- HOST_WIDE_INT i;
- } saved_insns;
+ union tree_node *t;
+ int i;
+ } 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_UINTDI_TYPE,
TI_UINTTI_TYPE,
- TI_CHAR_TYPE,
- TI_SIGNED_CHAR_TYPE,
- TI_UNSIGNED_CHAR_TYPE,
- TI_INTEGER_TYPE,
- TI_UNSIGNED_TYPE,
- TI_SHORT_INTEGER_TYPE,
- TI_SHORT_UNSIGNED_TYPE,
- TI_LONG_INTEGER_TYPE,
- TI_LONG_UNSIGNED_TYPE,
- TI_LONG_LONG_INTEGER_TYPE,
- TI_LONG_LONG_UNSIGNED_TYPE,
-
TI_INTEGER_ZERO,
TI_INTEGER_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_V4SF_TYPE,
+ TI_V4SI_TYPE,
+ TI_V8QI_TYPE,
+ TI_V4HI_TYPE,
+ TI_V2SI_TYPE,
+
+ TI_MAIN_IDENTIFIER,
+
TI_MAX
};
#define unsigned_intDI_type_node global_trees[TI_UINTDI_TYPE]
#define unsigned_intTI_type_node global_trees[TI_UINTTI_TYPE]
-#define char_type_node global_trees[TI_CHAR_TYPE]
-#define signed_char_type_node global_trees[TI_SIGNED_CHAR_TYPE]
-#define unsigned_char_type_node global_trees[TI_UNSIGNED_CHAR_TYPE]
-#define short_integer_type_node global_trees[TI_SHORT_INTEGER_TYPE]
-#define short_unsigned_type_node global_trees[TI_SHORT_UNSIGNED_TYPE]
-#define integer_type_node global_trees[TI_INTEGER_TYPE]
-#define unsigned_type_node global_trees[TI_UNSIGNED_TYPE]
-#define long_integer_type_node global_trees[TI_LONG_INTEGER_TYPE]
-#define long_unsigned_type_node global_trees[TI_LONG_UNSIGNED_TYPE]
-#define long_long_integer_type_node global_trees[TI_LONG_LONG_INTEGER_TYPE]
-#define long_long_unsigned_type_node global_trees[TI_LONG_LONG_UNSIGNED_TYPE]
-
#define integer_zero_node global_trees[TI_INTEGER_ZERO]
#define integer_one_node global_trees[TI_INTEGER_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 const_ptr_type_node global_trees[TI_CONST_PTR_TYPE]
#define ptrdiff_type_node global_trees[TI_PTRDIFF_TYPE]
#define va_list_type_node global_trees[TI_VA_LIST_TYPE]
+
+#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
+{
+ itk_char,
+ itk_signed_char,
+ itk_unsigned_char,
+ itk_short,
+ itk_unsigned_short,
+ itk_int,
+ itk_unsigned_int,
+ itk_long,
+ itk_unsigned_long,
+ itk_long_long,
+ itk_unsigned_long_long,
+ itk_none
+};
+
+typedef enum integer_type_kind integer_type_kind;
+
+/* The standard C integer types. Use integer_type_kind to index into
+ this array. */
+extern tree integer_types[itk_none];
+
+#define char_type_node integer_types[itk_char]
+#define signed_char_type_node integer_types[itk_signed_char]
+#define unsigned_char_type_node integer_types[itk_unsigned_char]
+#define short_integer_type_node integer_types[itk_short]
+#define short_unsigned_type_node integer_types[itk_unsigned_short]
+#define integer_type_node integer_types[itk_int]
+#define unsigned_type_node integer_types[itk_unsigned_int]
+#define long_integer_type_node integer_types[itk_long]
+#define long_unsigned_type_node integer_types[itk_unsigned_long]
+#define long_long_integer_type_node integer_types[itk_long_long]
+#define long_long_unsigned_type_node integer_types[itk_unsigned_long_long]
+
\f
#define NULL_TREE (tree) NULL
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 make_signed_type PARAMS ((int));
extern tree make_unsigned_type PARAMS ((int));
+extern void initialize_sizetypes PARAMS ((void));
extern void set_sizetype PARAMS ((tree));
extern tree signed_or_unsigned_type PARAMS ((int, tree));
extern void fixup_unsigned_type PARAMS ((tree));
extern tree value_member PARAMS ((tree, tree));
extern tree purpose_member PARAMS ((tree, tree));
extern tree binfo_member PARAMS ((tree, tree));
-extern int attribute_hash_list PARAMS ((tree));
+extern unsigned int attribute_hash_list PARAMS ((tree));
extern int attribute_list_equal 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 build_type_copy PARAMS ((tree));
/* Given a ..._TYPE node, calculate the TYPE_SIZE, TYPE_SIZE_UNIT,
- TYPE_ALIGN and TYPE_MODE fields.
- If called more than once on one node, does nothing except
- for the first time. */
+ TYPE_ALIGN and TYPE_MODE fields. If called more than once on one
+ node, does nothing except for the first time. */
extern void layout_type PARAMS ((tree));
+/* 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
+ 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. */
+
+typedef struct record_layout_info_s
+{
+ /* The RECORD_TYPE that we are laying out. */
+ tree t;
+ /* 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;
+ /* The alignment of the record so far, not including padding, in bits. */
+ unsigned int unpacked_align;
+ /* The static variables (i.e., class variables, as opposed to
+ instance variables) encountered in T. */
+ tree pending_statics;
+ int packed_maybe_necessary;
+} *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.
How the hash code is computed is up to the caller, as long as any two
callers that could hash identical-looking type nodes agree. */
-extern tree type_hash_canon PARAMS ((int, tree));
+extern tree type_hash_canon PARAMS ((unsigned int, tree));
/* Given a VAR_DECL, PARM_DECL, RESULT_DECL or FIELD_DECL node,
calculates the DECL_SIZE, DECL_SIZE_UNIT, DECL_ALIGN and DECL_MODE
extern void layout_decl PARAMS ((tree, unsigned));
+/* Return the mode for data of a given size SIZE and mode class CLASS.
+ If LIMIT is nonzero, then don't use modes bigger than MAX_FIXED_MODE_SIZE.
+ The value is BLKmode if no other mode is found. This is like
+ mode_for_size, but is passed a tree. */
+
+extern enum machine_mode mode_for_size_tree PARAMS ((tree, enum mode_class,
+ int));
+
/* Return an expr equal to X but certainly not valid as an lvalue. */
extern tree non_lvalue PARAMS ((tree));
extern unsigned int expr_align PARAMS ((tree));
extern tree size_in_bytes PARAMS ((tree));
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. */
+
+enum size_type_kind
+{
+ SIZETYPE, /* Normal representation of sizes in bytes. */
+ SSIZETYPE, /* Signed representation of sizes in bytes. */
+ USIZETYPE, /* Unsigned representation of sizes in bytes. */
+ BITSIZETYPE, /* Normal representation of sizes in bits. */
+ SBITSIZETYPE, /* Signed representation of sizes in bits. */
+ UBITSIZETYPE, /* Unsifgned representation of sizes in bits. */
+ TYPE_KIND_LAST};
+
+extern tree sizetype_tab[(int) TYPE_KIND_LAST];
+
+#define sizetype sizetype_tab[(int) SIZETYPE]
+#define bitsizetype sizetype_tab[(int) BITSIZETYPE]
+#define ssizetype sizetype_tab[(int) SSIZETYPE]
+#define usizetype sizetype_tab[(int) USIZETYPE]
+#define sbitsizetype sizetype_tab[(int) SBITSIZETYPE]
+#define ubitsizetype sizetype_tab[(int) UBITSIZETYPE]
+
extern tree size_binop PARAMS ((enum tree_code, tree, tree));
-extern tree ssize_binop PARAMS ((enum tree_code, tree, tree));
-extern tree size_int_wide PARAMS ((unsigned HOST_WIDE_INT,
- unsigned HOST_WIDE_INT, int));
-#define size_int(L) size_int_2 ((L), 0, 0)
-#define bitsize_int(L, H) size_int_2 ((L), (H), 1)
-#define size_int_2(L, H, T) \
- size_int_wide ((unsigned HOST_WIDE_INT) (L), \
- (unsigned HOST_WIDE_INT) (H), (T))
+extern tree size_diffop PARAMS ((tree, tree));
+extern tree size_int_wide PARAMS ((HOST_WIDE_INT,
+ enum size_type_kind));
+extern tree size_int_type_wide PARAMS ((HOST_WIDE_INT, tree));
+
+#define size_int_type(L, T) size_int_type_wide ((HOST_WIDE_INT) (L), T)
+#define size_int(L) size_int_wide ((HOST_WIDE_INT) (L), SIZETYPE)
+#define ssize_int(L) size_int_wide ((HOST_WIDE_INT) (L), SSIZETYPE)
+#define bitsize_int(L) size_int_wide ((HOST_WIDE_INT) (L), BITSIZETYPE)
+#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 void put_pending_sizes PARAMS ((tree));
+ (BITS_PER_UNIT > 8) + (BITS_PER_UNIT > 16) + (BITS_PER_UNIT > 32) \
+ (BITS_PER_UNIT > 64) + (BITS_PER_UNIT > 128) + (BITS_PER_UNIT > 256))
-struct sizetype_tab
-{
- tree xsizetype, xbitsizetype;
- tree xssizetype, xusizetype;
- tree xsbitsizetype, xubitsizetype;
-};
-
-extern struct sizetype_tab sizetype_tab;
-
-#define sizetype sizetype_tab.xsizetype
-#define bitsizetype sizetype_tab.xbitsizetype
-#define ssizetype sizetype_tab.xssizetype
-#define usizetype sizetype_tab.xusizetype
-#define sbitsizetype sizetype_tab.xsbitsizetype
-#define ubitsizetype sizetype_tab.xubitsizetype
-
/* If nonzero, an upper limit on alignment of structure fields, in bits. */
extern unsigned int maximum_field_alignment;
extern int list_length PARAMS ((tree));
+/* Returns the number of FIELD_DECLs in a type. */
+
+extern int fields_length PARAMS ((tree));
+
/* integer_zerop (tree x) is nonzero if X is an integer constant of value 0 */
extern int integer_zerop PARAMS ((tree));
extern void (*lang_unsave) PARAMS ((tree *));
extern void (*lang_unsave_expr_now) 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 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;
extern tree current_function_decl;
+/* Nonzero means a FUNC_BEGIN label was emitted. */
+extern tree current_function_func_begin_label;
+
/* Nonzero means all ..._TYPE nodes should be allocated permanently. */
extern int all_types_permanent;
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));
\f
/* In stmt.c */
extern void warn_about_unused_variables PARAMS ((tree));
extern void start_cleanup_deferral PARAMS ((void));
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 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 *));
extern tree fold PARAMS ((tree));
extern int force_fit_type PARAMS ((tree, int));
-extern int add_double PARAMS ((HOST_WIDE_INT, HOST_WIDE_INT,
- HOST_WIDE_INT, HOST_WIDE_INT,
- HOST_WIDE_INT *, HOST_WIDE_INT *));
-extern int neg_double PARAMS ((HOST_WIDE_INT, HOST_WIDE_INT,
- HOST_WIDE_INT *, HOST_WIDE_INT *));
-extern int mul_double PARAMS ((HOST_WIDE_INT, HOST_WIDE_INT,
- HOST_WIDE_INT, HOST_WIDE_INT,
- HOST_WIDE_INT *, HOST_WIDE_INT *));
-extern void lshift_double PARAMS ((HOST_WIDE_INT, HOST_WIDE_INT,
- HOST_WIDE_INT, int, HOST_WIDE_INT *,
- HOST_WIDE_INT *, int));
-extern void rshift_double PARAMS ((HOST_WIDE_INT, HOST_WIDE_INT,
- HOST_WIDE_INT, int,
- HOST_WIDE_INT *, HOST_WIDE_INT *, int));
-extern void lrotate_double PARAMS ((HOST_WIDE_INT, HOST_WIDE_INT,
- HOST_WIDE_INT, int, HOST_WIDE_INT *,
- HOST_WIDE_INT *));
-extern void rrotate_double PARAMS ((HOST_WIDE_INT, HOST_WIDE_INT,
- HOST_WIDE_INT, int, HOST_WIDE_INT *,
- HOST_WIDE_INT *));
+extern int add_double PARAMS ((unsigned HOST_WIDE_INT, HOST_WIDE_INT,
+ unsigned HOST_WIDE_INT, HOST_WIDE_INT,
+ unsigned HOST_WIDE_INT *,
+ HOST_WIDE_INT *));
+extern int neg_double PARAMS ((unsigned HOST_WIDE_INT, HOST_WIDE_INT,
+ unsigned HOST_WIDE_INT *,
+ HOST_WIDE_INT *));
+extern int mul_double PARAMS ((unsigned HOST_WIDE_INT,
+ HOST_WIDE_INT,
+ unsigned HOST_WIDE_INT, HOST_WIDE_INT,
+ unsigned HOST_WIDE_INT *,
+ HOST_WIDE_INT *));
+extern void lshift_double PARAMS ((unsigned HOST_WIDE_INT, HOST_WIDE_INT,
+ HOST_WIDE_INT, unsigned int,
+ unsigned HOST_WIDE_INT *,
+ HOST_WIDE_INT *, int));
+extern void rshift_double PARAMS ((unsigned HOST_WIDE_INT, HOST_WIDE_INT,
+ HOST_WIDE_INT, unsigned int,
+ unsigned HOST_WIDE_INT *,
+ HOST_WIDE_INT *, int));
+extern void lrotate_double PARAMS ((unsigned HOST_WIDE_INT, HOST_WIDE_INT,
+ HOST_WIDE_INT, unsigned int,
+ unsigned HOST_WIDE_INT *,
+ HOST_WIDE_INT *));
+extern void rrotate_double PARAMS ((unsigned HOST_WIDE_INT, HOST_WIDE_INT,
+ HOST_WIDE_INT, unsigned int,
+ unsigned HOST_WIDE_INT *,
+ HOST_WIDE_INT *));
extern int operand_equal_p PARAMS ((tree, tree, int));
extern tree invert_truthvalue PARAMS ((tree));
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));
-\f
/* The language front-end must define these functions. */
/* Function of no arguments for initializing options. */
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));
-
extern void end_temporary_allocation PARAMS ((void));
/* Pop the obstack selection stack. */
extern void pop_obstacks PARAMS ((void));
+/* In alias.c */
+extern void record_component_aliases PARAMS ((tree));
+extern HOST_WIDE_INT get_alias_set PARAMS ((tree));
+
+/* In c-common.c */
+extern HOST_WIDE_INT lang_get_alias_set PARAMS ((tree));
+
/* In tree.c */
extern int really_constant_p PARAMS ((tree));
extern void push_obstacks PARAMS ((struct obstack *,
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 int simple_cst_equal PARAMS ((tree, tree));
+extern int compare_tree_int PARAMS ((tree, unsigned int));
extern int type_list_equal PARAMS ((tree, tree));
extern int chain_member PARAMS ((tree, tree));
extern int chain_member_purpose PARAMS ((tree, tree));
extern int chain_member_value PARAMS ((tree, tree));
extern tree listify PARAMS ((tree));
-extern tree type_hash_lookup PARAMS ((int, tree));
-extern void type_hash_add PARAMS ((int, tree));
-extern int type_hash_list PARAMS ((tree));
+extern tree type_hash_lookup PARAMS ((unsigned int, 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 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 int real_onep PARAMS ((tree));
extern int real_twop PARAMS ((tree));
extern void start_identifier_warnings 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));
extern void pop_temp_slots PARAMS ((void));
extern void push_temp_slots PARAMS ((void));
extern void preserve_temp_slots PARAMS ((struct rtx_def *));
+extern void preserve_rtl_expr_temps PARAMS ((tree));
extern int aggregate_value_p PARAMS ((tree));
-extern tree reorder_blocks PARAMS ((tree,
- struct rtx_def *));
extern void free_temps_for_rtl_expr PARAMS ((tree));
extern void instantiate_virtual_regs PARAMS ((tree, struct rtx_def *));
extern void unshare_all_rtl PARAMS ((tree, struct rtx_def *));
/* 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
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 *,
+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 ((char *, int,
- struct rtx_def *));
-extern struct rtx_def *emit_line_note PARAMS ((char *, int));
-extern struct rtx_def *emit_line_note_force PARAMS ((char *, int));
+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 int min_precision PARAMS ((tree, int));
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 */
/* In fold-const.c */
extern int div_and_round_double PARAMS ((enum tree_code, int,
- HOST_WIDE_INT, HOST_WIDE_INT,
- HOST_WIDE_INT, HOST_WIDE_INT,
- HOST_WIDE_INT *,
- HOST_WIDE_INT *,
- HOST_WIDE_INT *,
- HOST_WIDE_INT *));
+ unsigned HOST_WIDE_INT,
+ HOST_WIDE_INT,
+ unsigned HOST_WIDE_INT,
+ HOST_WIDE_INT,
+ unsigned HOST_WIDE_INT *,
+ HOST_WIDE_INT *,
+ unsigned HOST_WIDE_INT *,
+ HOST_WIDE_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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