/* Front-end tree definitions for GNU compiler.
- Copyright (C) 1989 Free Software Foundation, Inc.
+ Copyright (C) 1989, 1993, 1994 Free Software Foundation, Inc.
This file is part of GNU CC.
#include "machmode.h"
-/* codes of tree nodes */
+#ifndef RTX_CODE
+struct rtx_def;
+#endif
+
+/* Codes of tree nodes */
#define DEFTREECODE(SYM, STRING, TYPE, NARGS) SYM,
BUILT_IN_FRAME_ADDRESS,
BUILT_IN_RETURN_ADDRESS,
BUILT_IN_CALLER_RETURN_ADDRESS,
+ BUILT_IN_APPLY_ARGS,
+ BUILT_IN_APPLY,
+ BUILT_IN_RETURN,
/* C++ extensions */
BUILT_IN_NEW,
BUILT_IN_VEC_NEW,
BUILT_IN_DELETE,
- BUILT_IN_VEC_DELETE
+ BUILT_IN_VEC_DELETE,
+
+ /* Upper bound on non-language-specific builtins. */
+ END_BUILTINS
};
\f
/* The definition of tree nodes fills the next several pages. */
&& (TREE_TYPE (EXP) \
== TREE_TYPE (TREE_OPERAND (EXP, 0)))) \
(EXP) = TREE_OPERAND (EXP, 0);
+
+/* Nonzero if TYPE represents an integral type. Note that we do not
+ include COMPLEX types here. */
+
+#define INTEGRAL_TYPE_P(TYPE) \
+ (TREE_CODE (TYPE) == INTEGER_TYPE || TREE_CODE (TYPE) == ENUMERAL_TYPE \
+ || TREE_CODE (TYPE) == BOOLEAN_TYPE || TREE_CODE (TYPE) == CHAR_TYPE)
+
+/* Nonzero if TYPE represents a floating-point type, including complex
+ floating-point types. */
+
+#define FLOAT_TYPE_P(TYPE) \
+ (TREE_CODE (TYPE) == REAL_TYPE \
+ || (TREE_CODE (TYPE) == COMPLEX_TYPE \
+ && TREE_CODE (TREE_TYPE (TYPE)) == REAL_TYPE))
+
+/* Nonzero if TYPE represents an aggregate (multi-component) type. */
+
+#define AGGREGATE_TYPE_P(TYPE) \
+ (TREE_CODE (TYPE) == ARRAY_TYPE || TREE_CODE (TYPE) == RECORD_TYPE \
+ || TREE_CODE (TYPE) == UNION_TYPE || TREE_CODE (TYPE) == QUAL_UNION_TYPE \
+ || TREE_CODE (TYPE) == SET_TYPE)
\f
/* Define many boolean fields that all tree nodes have. */
In a CONSTRUCTOR, nonzero means allocate static storage. */
#define TREE_STATIC(NODE) ((NODE)->common.static_flag)
-/* In a CONVERT_EXPR or NOP_EXPR, this means the node was made
- implicitly and should not lead to an "unused value" warning. */
+/* In a CONVERT_EXPR, NOP_EXPR or COMPOUND_EXPR, this means the node was
+ made implicitly and should not lead to an "unused value" warning. */
#define TREE_NO_UNUSED_WARNING(NODE) ((NODE)->common.static_flag)
-/* In a NON_LVALUE_EXPR, this means there was overflow in folding.
- The folded constant is inside the NON_LVALUE_EXPR. */
-#define TREE_CONSTANT_OVERFLOW(NODE) ((NODE)->common.static_flag)
-
/* Nonzero for a TREE_LIST or TREE_VEC node means that the derivation
chain is via a `virtual' declaration. */
#define TREE_VIA_VIRTUAL(NODE) ((NODE)->common.static_flag)
+/* In an INTEGER_CST, REAL_CST, or COMPLEX_CST, this means there was an
+ overflow in folding. This is distinct from TREE_OVERFLOW because ANSI C
+ requires a diagnostic when overflows occur in constant expressions. */
+#define TREE_CONSTANT_OVERFLOW(NODE) ((NODE)->common.static_flag)
+
+/* In an INTEGER_CST, REAL_CST, of COMPLEX_CST, this means there was an
+ overflow in folding, and no warning has been issued for this subexpression.
+ TREE_OVERFLOW implies TREE_CONSTANT_OVERFLOW, but not vice versa. */
+#define TREE_OVERFLOW(NODE) ((NODE)->common.public_flag)
+
/* 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
base class is via a `protected' declaration, which preserves
protected fields from the base class as protected.
OVERLOADED. */
-#define TREE_VIA_PROTECTED(NODE) ((NODE)->common.static_flag)
+#define TREE_VIA_PROTECTED(NODE) ((NODE)->common.protected_flag)
/* In any expression, nonzero means it has side effects or reevaluation
of the whole expression could produce a different value.
Nonzero in a FUNCTION_DECL means that the function has been compiled.
This is interesting in an inline function, since it might not need
to be compiled separately.
- Nonzero in a RECORD_TYPE, UNION_TYPE or ENUMERAL_TYPE
+ Nonzero in a RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE or ENUMERAL_TYPE
if the sdb debugging info for the type has been written.
In a BLOCK node, nonzero if reorder_blocks has already seen this block. */
#define TREE_ASM_WRITTEN(NODE) ((NODE)->common.asm_written_flag)
#define TYPE_MAX_VALUE(NODE) ((NODE)->type.maxval)
#define TYPE_PRECISION(NODE) ((NODE)->type.precision)
#define TYPE_PARSE_INFO(NODE) ((NODE)->type.parse_info)
-#define TYPE_SYMTAB_ADDRESS(NODE) ((NODE)->type.symtab_address)
+#define TYPE_SYMTAB_ADDRESS(NODE) ((NODE)->type.symtab.address)
+#define TYPE_SYMTAB_POINTER(NODE) ((NODE)->type.symtab.pointer)
#define TYPE_NAME(NODE) ((NODE)->type.name)
#define TYPE_NEXT_VARIANT(NODE) ((NODE)->type.next_variant)
#define TYPE_MAIN_VARIANT(NODE) ((NODE)->type.main_variant)
#define TYPE_BINFO(NODE) ((NODE)->type.binfo)
#define TYPE_NONCOPIED_PARTS(NODE) ((NODE)->type.noncopied_parts)
#define TYPE_CONTEXT(NODE) ((NODE)->type.context)
+#define TYPE_OBSTACK(NODE) ((NODE)->type.obstack)
#define TYPE_LANG_SPECIFIC(NODE) ((NODE)->type.lang_specific)
+/* A TREE_LIST of IDENTIFIER nodes of the attributes that apply
+ to this type. */
+#define TYPE_ATTRIBUTES(NODE) ((NODE)->type.attributes)
+
/* The alignment necessary for objects of this type.
The value is an int, measured in bits. */
#define TYPE_ALIGN(NODE) ((NODE)->type.align)
#define TYPE_STUB_DECL(NODE) (TREE_CHAIN (NODE))
-/* In a RECORD_TYPE or UNION_TYPE, it means the type has BLKmode
- only because it lacks the alignment requirement for its size. */
+/* In a RECORD_TYPE, UNION_TYPE or QUAL_UNION_TYPE, it means the type
+ has BLKmode only because it lacks the alignment requirement for
+ its size. */
#define TYPE_NO_FORCE_BLK(NODE) ((NODE)->type.no_force_blk_flag)
/* Nonzero in a type considered volatile as a whole. */
#define TYPE_LANG_FLAG_5(NODE) ((NODE)->type.lang_flag_5)
#define TYPE_LANG_FLAG_6(NODE) ((NODE)->type.lang_flag_6)
+/* If set in an ARRAY_TYPE, indicates a string type (for languages
+ that distinguish string from array of char).
+ If set in a SET_TYPE, indicates a bitstring type. */
+#define TYPE_STRING_FLAG(NODE) ((NODE)->type.string_flag)
+
struct tree_type
{
char common[sizeof (struct tree_common)];
union tree_node *values;
union tree_node *size;
+ union tree_node *attributes;
unsigned uid;
+ unsigned char precision;
#ifdef ONLY_INT_FIELDS
int mode : 8;
#else
enum machine_mode mode : 8;
#endif
- unsigned char align;
- unsigned char precision;
+ unsigned string_flag : 1;
unsigned no_force_blk_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;
+ /* room for 7 more bits */
+ unsigned int align;
union tree_node *pointer_to;
union tree_node *reference_to;
int parse_info;
- int symtab_address;
+ union {int address; char *pointer; } symtab;
union tree_node *name;
union tree_node *minval;
union tree_node *maxval;
union tree_node *binfo;
union tree_node *noncopied_parts;
union tree_node *context;
+ struct obstack *obstack;
/* Points to a structure whose details depend on the language in use. */
struct lang_type *lang_specific;
};
#define BINFO_BASETYPES(NODE) TREE_VEC_ELT ((NODE), 4)
#define TYPE_BINFO_BASETYPES(NODE) TREE_VEC_ELT (TYPE_BINFO (NODE), 4)
+/* For a BINFO record describing an inheritance, this yields a pointer
+ to the artificial FIELD_DECL node which contains the "virtual base
+ class pointer" for the given inheritance. */
+
+#define BINFO_VPTR_FIELD(NODE) TREE_VEC_ELT ((NODE), 5)
+
/* Accessor macro to get to the Nth basetype of this basetype. */
#define BINFO_BASETYPE(NODE,N) TREE_VEC_ELT (BINFO_BASETYPES (NODE), (N))
#define TYPE_BINFO_BASETYPE(NODE,N) BINFO_TYPE (TREE_VEC_ELT (BINFO_BASETYPES (TYPE_BINFO (NODE)), (N)))
/* This is the name of the object as written by the user.
It is an IDENTIFIER_NODE. */
#define DECL_NAME(NODE) ((NODE)->decl.name)
-/* This macro is marked for death. */
-#define DECL_PRINT_NAME(NODE) ((NODE)->decl.print_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) ((NODE)->decl.assembler_name)
+/* 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) ((NODE)->decl.section_name)
/* For FIELD_DECLs, this is the
- RECORD_TYPE or UNION_TYPE node that the field is a member of. For
- VAR_DECL, PARM_DECL, FUNCTION_DECL, LABEL_DECL, and CONST_DECL nodes,
- this points to the FUNCTION_DECL for the containing function, or else
- yields NULL_TREE if the given decl has "file scope". */
+ RECORD_TYPE, UNION_TYPE, or QUAL_UNION_TYPE node that the field is
+ a member of. For VAR_DECL, PARM_DECL, FUNCTION_DECL, LABEL_DECL,
+ and CONST_DECL nodes, this points to the FUNCTION_DECL for the
+ containing function, or else yields NULL_TREE if the given decl has "file scope". */
#define DECL_CONTEXT(NODE) ((NODE)->decl.context)
#define DECL_FIELD_CONTEXT(NODE) ((NODE)->decl.context)
/* In a FIELD_DECL, this is the field position, counting in bits,
/* 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) ((NODE)->decl.initial) /* In PARM_DECL. */
+/* 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) ((NODE)->decl.initial)
/* These two fields describe where in the source code the declaration was. */
#define DECL_SOURCE_FILE(NODE) ((NODE)->decl.filename)
#define DECL_SOURCE_LINE(NODE) ((NODE)->decl.linenum)
Need not be constant. */
#define DECL_SIZE(NODE) ((NODE)->decl.size)
/* Holds the alignment required for the datum. */
-#define DECL_ALIGN(NODE) ((NODE)->decl.frame_size)
-/* Holds the machine mode of a variable or field. */
+#define DECL_ALIGN(NODE) ((NODE)->decl.frame_size.u)
+/* 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_MODE(NODE) ((NODE)->decl.mode)
-/* Holds the RTL expression for the value of a variable or function. */
+/* Holds the RTL expression for the value of a variable or function. If
+ 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) ((NODE)->decl.rtl)
/* For PARM_DECL, holds an RTL for the stack slot or register
where the data was actually passed. */
#define DECL_INCOMING_RTL(NODE) ((NODE)->decl.saved_insns.r)
/* For FUNCTION_DECL, if it is inline, holds the saved insn chain. */
#define DECL_SAVED_INSNS(NODE) ((NODE)->decl.saved_insns.r)
-/* For FUNCTION_DECL for built-in function. */
-#define DECL_FUNCTION_CODE(NODE) \
- ((enum built_in_function) (NODE)->decl.frame_size)
-#define DECL_SET_FUNCTION_CODE(NODE,VAL) \
- ((NODE)->decl.frame_size = (int) (VAL))
/* For FUNCTION_DECL, if it is inline,
holds the size of the stack frame, as an integer. */
-#define DECL_FRAME_SIZE(NODE) ((NODE)->decl.frame_size)
+#define DECL_FRAME_SIZE(NODE) ((NODE)->decl.frame_size.i)
+/* For FUNCTION_DECL, if it is built-in,
+ this identifies which built-in operation it is. */
+#define DECL_FUNCTION_CODE(NODE) ((NODE)->decl.frame_size.f)
+#define DECL_SET_FUNCTION_CODE(NODE,VAL) ((NODE)->decl.frame_size.f = (VAL))
/* For a FIELD_DECL, holds the size of the member as an integer. */
#define DECL_FIELD_SIZE(NODE) ((NODE)->decl.saved_insns.i)
because this decl is unused. */
#define DECL_IN_SYSTEM_HEADER(NODE) ((NODE)->decl.in_system_header_flag)
+/* Nonzero for a given ..._DECL node means that this node should be
+ put in .common, if possible. If a DECL_INITIAL is given, and it
+ is not error_mark_node, then the decl cannot be put in .common. */
+#define DECL_COMMON(NODE) ((NODE)->decl.common_flag)
+
/* Language-specific decl information. */
#define DECL_LANG_SPECIFIC(NODE) ((NODE)->decl.lang_specific)
do not allocate storage, and refer to a definition elsewhere. */
#define DECL_EXTERNAL(NODE) ((NODE)->decl.external_flag)
+/* In a TYPE_DECL
+ 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) ((NODE)->decl.external_flag)
+
+
/* In VAR_DECL and PARM_DECL nodes, nonzero means declared `register'.
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_TOO_LATE(NODE) ((NODE)->decl.bit_field_flag)
/* In a FUNCTION_DECL, nonzero means a built in function. */
#define DECL_BUILT_IN(NODE) ((NODE)->decl.bit_field_flag)
+/* In a VAR_DECL that's static,
+ nonzero if the space is in the text section. */
+#define DECL_IN_TEXT_SECTION(NODE) ((NODE)->decl.bit_field_flag)
/* Used in VAR_DECLs to indicate that the variable is a vtable.
It is also used in FIELD_DECLs for vtable pointers. */
#define DECL_VIRTUAL_P(NODE) ((NODE)->decl.virtual_flag)
+/* Used to indicate that the linkage status of this DECL is not yet known,
+ so it should not be output now. */
+#define DECL_DEFER_OUTPUT(NODE) ((NODE)->decl.defer_output)
+
/* Additional flags for language-specific uses. */
#define DECL_LANG_FLAG_0(NODE) ((NODE)->decl.lang_flag_0)
#define DECL_LANG_FLAG_1(NODE) ((NODE)->decl.lang_flag_1)
unsigned abstract_flag : 1;
unsigned in_system_header_flag : 1;
- /* room for seven more */
+ unsigned common_flag : 1;
+ unsigned defer_output : 1;
+ /* room for five more */
unsigned lang_flag_0 : 1;
unsigned lang_flag_1 : 1;
union tree_node *result;
union tree_node *initial;
union tree_node *abstract_origin;
- /* The PRINT_NAME field is marked for death. */
- char *print_name;
union tree_node *assembler_name;
+ union tree_node *section_name;
struct rtx_def *rtl; /* acts as link to register transfer language
(rtl) info */
/* 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. */
- int frame_size;
+ If built-in, this is the code for which built-in function.
+ For other kinds of decls, this is DECL_ALIGN. */
+ union {
+ int i;
+ unsigned int u;
+ enum built_in_function f;
+ } frame_size;
/* For FUNCTION_DECLs: points to insn that constitutes its definition
on the permanent obstack. For any other kind of decl, this is the
alignment. */
#endif
#endif
+#ifndef VPROTO
+#ifdef __STDC__
+#define PVPROTO(ARGS) ARGS
+#define VPROTO(ARGS) ARGS
+#define VA_START(va_list,var) va_start(va_list,var)
+#else
+#define PVPROTO(ARGS) ()
+#define VPROTO(ARGS) (va_alist) va_dcl
+#define VA_START(va_list,var) va_start(va_list)
+#endif
+#endif
+
+#ifndef STDIO_PROTO
+#ifdef BUFSIZ
+#define STDIO_PROTO(ARGS) PROTO(ARGS)
+#else
+#define STDIO_PROTO(ARGS) ()
+#endif
+#endif
#define NULL_TREE (tree) NULL
#ifndef NULL_PTR
#define NULL_PTR ((GENERIC_PTR)0)
#endif
-
-/* Format for global names of constructor and destructor functions. */
-#ifndef NO_DOLLAR_IN_LABEL
-#define CONSTRUCTOR_NAME_FORMAT "_GLOBAL_$I$%s"
-#else
-#define CONSTRUCTOR_NAME_FORMAT "_GLOBAL_.I.%s"
-#endif
\f
/* The following functions accept a wide integer argument. Rather than
having to cast on every function call, we use a macro instead, that is
/* At present, don't prototype xrealloc, since all of the callers don't
cast their pointers to char *, and all of the xrealloc's don't use
void * yet. */
-extern char *xrealloc PROTO((void *, unsigned));
+extern char *xmalloc PROTO((size_t));
+extern char *xrealloc PROTO((void *, size_t));
#else
+extern char *xmalloc ();
extern char *xrealloc ();
#endif
extern char *oballoc PROTO((int));
extern char *permalloc PROTO((int));
extern char *savealloc PROTO((int));
-extern char *xmalloc PROTO((unsigned));
extern void free PROTO((void *));
/* Lowest level primitive for allocating a node.
#define build_int_2(LO,HI) \
build_int_2_wide ((HOST_WIDE_INT) (LO), (HOST_WIDE_INT) (HI))
-#if 0
-/* We cannot define prototypes for the variable argument functions,
- since they have not been ANSI-fied, and an ANSI compiler would
- complain when compiling the definition of these functions. */
-
-extern tree build PROTO((enum tree_code, tree, ...));
-extern tree build_nt PROTO((enum tree_code, ...));
-extern tree build_parse_node PROTO((enum tree_code, ...));
-#else
-extern tree build ();
-extern tree build_nt ();
-extern tree build_parse_node ();
-#endif
+extern tree build PVPROTO((enum tree_code, tree, ...));
+extern tree build_nt PVPROTO((enum tree_code, ...));
+extern tree build_parse_node PVPROTO((enum tree_code, ...));
extern tree build_int_2_wide PROTO((HOST_WIDE_INT, HOST_WIDE_INT));
extern tree build_real PROTO((tree, REAL_VALUE_TYPE));
extern tree build_complex_type PROTO((tree));
extern tree array_type_nelts PROTO((tree));
-/* Construct expressions, performing type checking.
- GCC and G++ use different calling sequences for build_binary_op,
- and build_indirect_ref, so don't include a prototype here. */
-
-extern tree build_binary_op ();
-extern tree build_indirect_ref ();
-extern tree build_unary_op PROTO((enum tree_code, tree, int));
+extern tree value_member PROTO((tree, tree));
+extern tree purpose_member PROTO((tree, tree));
+extern tree binfo_member PROTO((tree, tree));
+extern int attribute_list_equal PROTO((tree, tree));
+extern int attribute_list_contained PROTO((tree, tree));
+extern int tree_int_cst_equal PROTO((tree, tree));
+extern int tree_int_cst_lt PROTO((tree, tree));
+extern int tree_int_cst_sgn PROTO((tree));
+extern int index_type_equal PROTO((tree, tree));
/* From expmed.c. Since rtl.h is included after tree.h, we can't
put the prototype here. Rtl.h does declare the prototype if
extern tree make_tree ();
\f
+/* Return a type like TTYPE except that its TYPE_ATTRIBUTES
+ is ATTRIBUTE.
+
+ Such modified types already made are recorded so that duplicates
+ are not made. */
+
+extern tree build_type_attribute_variant PROTO((tree, tree));
+
/* Given a type node TYPE, and CONSTP and VOLATILEP, return a type
for the same kind of data as TYPE describes.
Variants point to the "main variant" (which has neither CONST nor VOLATILE)
extern void layout_decl PROTO((tree, unsigned));
-/* Fold constants as much as possible in an expression.
- Returns the simplified expression.
- Acts only on the top level of the expression;
- if the argument itself cannot be simplified, its
- subexpressions are not changed. */
-
-extern tree fold PROTO((tree));
-
/* Return an expr equal to X but certainly not valid as an lvalue. */
extern tree non_lvalue PROTO((tree));
+extern tree pedantic_non_lvalue PROTO((tree));
extern tree convert PROTO((tree, tree));
extern tree size_in_bytes PROTO((tree));
extern tree save_expr PROTO((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.
+
+ Note that we only allow such expressions within simple arithmetic
+ or a COND_EXPR. */
+
+extern int contains_placeholder_p PROTO((tree));
+
+/* Given a tree EXP, a FIELD_DECL F, and a replacement value R,
+ return a tree with all occurrences of references to F in a
+ PLACEHOLDER_EXPR replaced by R. Note that we assume here that EXP
+ contains only arithmetic expressions. */
+
+extern tree substitute_in_expr PROTO((tree, tree, tree));
+
+/* Given a type T, a FIELD_DECL F, and a replacement value R,
+ return a new type with all size expressions that contain F
+ updated by replacing the reference to F with R. */
+
+extern tree substitute_in_type PROTO((tree, tree, tree));
+
/* variable_size (EXP) is like save_expr (EXP) except that it
is for the special case of something that is part of a
variable size for a data type. It makes special arrangements
or zero if none. */
extern tree decl_function_context PROTO((tree));
-/* Return the RECORD_TYPE or UNION_TYPE which provides this _DECL
- with its context, or zero if none. */
+/* Return the RECORD_TYPE, UNION_TYPE, or QUAL_UNION_TYPE which provides
+ this _DECL with its context, or zero if none. */
extern tree decl_type_context PROTO((tree));
/* Given the FUNCTION_DECL for the current function,
for the function's name. */
extern char *function_cannot_inline_p PROTO((tree));
+
+/* Return 1 if EXPR is the real constant zero. */
+extern int real_zerop PROTO((tree));
\f
/* Declare commonly used variables for tree structure. */
/* Pointer to function to compute the name to use to print a declaration. */
extern char *(*decl_printable_name) ();
+
+/* Pointer to function to finish handling an incomplete decl at the
+ end of compilation. */
+
+extern void (*incomplete_decl_finalize_hook) ();
+\f
+/* In tree.c */
+extern char *perm_calloc PROTO((int, long));
\f
/* In stmt.c */
+extern void expand_fixups PROTO((struct rtx_def *));
extern tree expand_start_stmt_expr PROTO((void));
extern tree expand_end_stmt_expr PROTO((tree));
extern void expand_expr_stmt PROTO((tree));
+extern void expand_decl_init PROTO((tree));
extern void clear_last_expr PROTO((void));
extern void expand_label PROTO((tree));
extern void expand_goto PROTO((tree));
extern void expand_end_loop PROTO((void));
extern int expand_continue_loop PROTO((struct nesting *));
extern int expand_exit_loop PROTO((struct nesting *));
-extern int expand_exit_loop_if_false PROTO((struct nesting *, tree));
+extern int expand_exit_loop_if_false PROTO((struct nesting *,
+ tree));
extern int expand_exit_something PROTO((void));
extern void expand_null_return PROTO((void));
extern void expand_start_bindings PROTO((int));
extern void expand_end_bindings PROTO((tree, int, int));
extern tree last_cleanup_this_contour PROTO((void));
-extern void expand_start_case PROTO((int, tree, tree, char *));
+extern void expand_start_case PROTO((int, tree, tree,
+ char *));
extern void expand_end_case PROTO((tree));
-extern int pushcase PROTO((tree, tree, tree *));
-extern int pushcase_range PROTO((tree, tree, tree, tree *));
+extern int pushcase PROTO((tree,
+ tree (*) (tree, tree),
+ tree, tree *));
+extern int pushcase_range PROTO((tree, tree,
+ tree (*) (tree, tree),
+ tree, tree *));
/* In fold-const.c */
-extern tree invert_truthvalue PROTO((tree));
+/* Fold constants as much as possible in an expression.
+ Returns the simplified expression.
+ Acts only on the top level of the expression;
+ if the argument itself cannot be simplified, its
+ subexpressions are not changed. */
+
+extern tree fold PROTO((tree));
+
+extern int force_fit_type PROTO((tree, int));
+extern int add_double PROTO((HOST_WIDE_INT, HOST_WIDE_INT,
+ HOST_WIDE_INT, HOST_WIDE_INT,
+ HOST_WIDE_INT *, HOST_WIDE_INT *));
+extern int neg_double PROTO((HOST_WIDE_INT, HOST_WIDE_INT,
+ HOST_WIDE_INT *, HOST_WIDE_INT *));
+extern int mul_double PROTO((HOST_WIDE_INT, HOST_WIDE_INT,
+ HOST_WIDE_INT, HOST_WIDE_INT,
+ HOST_WIDE_INT *, HOST_WIDE_INT *));
+extern void lshift_double PROTO((HOST_WIDE_INT, HOST_WIDE_INT,
+ HOST_WIDE_INT, int, HOST_WIDE_INT *,
+ HOST_WIDE_INT *, int));
+extern void rshift_double PROTO((HOST_WIDE_INT, HOST_WIDE_INT,
+ HOST_WIDE_INT, int,
+ HOST_WIDE_INT *, HOST_WIDE_INT *, int));
+extern void lrotate_double PROTO((HOST_WIDE_INT, HOST_WIDE_INT,
+ HOST_WIDE_INT, int, HOST_WIDE_INT *,
+ HOST_WIDE_INT *));
+extern void rrotate_double PROTO((HOST_WIDE_INT, HOST_WIDE_INT,
+ HOST_WIDE_INT, int, HOST_WIDE_INT *,
+ HOST_WIDE_INT *));
+extern int operand_equal_p PROTO((tree, tree, int));
+extern tree invert_truthvalue PROTO((tree));
\f
/* The language front-end must define these functions. */
extern void lang_init PROTO((void));
extern void lang_finish PROTO((void));
+/* Funtion to identify which front-end produced the output file. */
+extern char *lang_identify PROTO((void));
+
+/* Function to replace the DECL_LANG_SPECIFIC field of a DECL with a copy. */
+extern void copy_lang_decl PROTO((tree));
+
/* Function called with no arguments to parse and compile the input. */
extern int yyparse PROTO((void));
/* Function called with option as argument
REVERSE -- reverse the order of decls before returning them.
FUNCTIONBODY -- nonzero if this level is the body of a function. */
extern tree poplevel PROTO((int, int, int));
-/* Return the BLOCK node for the current scope level. */
-extern tree current_block PROTO((void));
+/* Set the BLOCK node for the current scope level. */
+extern void set_block PROTO((tree));
/* Function to add a decl to the current scope level.
Takes one argument, a decl to add.
Returns that decl, or, if the same symbol is already declared, may
extern tree getdecls PROTO((void));
/* Function to return the chain of structure tags in the current scope level. */
extern tree gettags PROTO((void));
+
+extern tree build_range_type PROTO((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 PROTO((void));
+
+extern int allocation_temporary_p PROTO((void));
+
+/* 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 PROTO((int));
+
+/* Called after finishing a record, union or enumeral type. */
+extern void rest_of_type_compilation PROTO((tree, int));
+
+/* Save the current set of obstacks, but don't change them. */
+extern void push_obstacks_nochange PROTO((void));
+
+extern void permanent_allocation PROTO((int));
+
+extern void push_momentary PROTO((void));
+
+extern void clear_momentary PROTO((void));
+
+extern void pop_momentary PROTO((void));
+
+extern void end_temporary_allocation PROTO((void));
+
+/* Pop the obstack selection stack. */
+extern void pop_obstacks PROTO((void));
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