#include "config.h"
#include "system.h"
#include "tree.h"
+#include "real.h"
#include "flags.h"
#include "toplev.h"
#include "output.h"
#include "ggc.h"
#include "expr.h"
#include "c-common.h"
-#include "tree-inline.h"
#include "diagnostic.h"
#include "tm_p.h"
#include "obstack.h"
-#include "c-lex.h"
#include "cpplib.h"
#include "target.h"
#include "langhooks.h"
-cpp_reader *parse_in; /* Declared in c-lex.h. */
+#include "except.h" /* For USING_SJLJ_EXCEPTIONS. */
+#include "tree-inline.h"
-#undef WCHAR_TYPE_SIZE
-#define WCHAR_TYPE_SIZE TYPE_PRECISION (wchar_type_node)
+cpp_reader *parse_in; /* Declared in c-pragma.h. */
/* We let tm.h override the types used here, to handle trivial differences
such as the choice of unsigned int or long unsigned int for size_t.
#define WCHAR_TYPE "int"
#endif
+/* WCHAR_TYPE gets overridden by -fshort-wchar. */
+#define MODIFIED_WCHAR_TYPE \
+ (flag_short_wchar ? "short unsigned int" : WCHAR_TYPE)
+
#ifndef PTRDIFF_TYPE
#define PTRDIFF_TYPE "long int"
#endif
: "long long unsigned int"))
#endif
+#ifndef REGISTER_PREFIX
+#define REGISTER_PREFIX ""
+#endif
+
/* The variant of the C language being processed. */
enum c_language_kind c_language;
tree c_global_trees[CTI_MAX];
+/* Switches common to the C front ends. */
+
/* Nonzero if prepreprocessing only. */
int flag_preprocess_only;
+/* Nonzero if an ISO standard was selected. It rejects macros in the
+ user's namespace. */
+int flag_iso;
+
+/* Nonzero whenever Objective-C functionality is being used. */
+int flag_objc;
+
+/* Nonzero if -undef was given. It suppresses target built-in macros
+ and assertions. */
+int flag_undef;
+
/* Nonzero means don't recognize the non-ANSI builtin functions. */
int flag_no_builtin;
int flag_short_wchar;
+/* Nonzero means allow Microsoft extensions without warnings or errors. */
+int flag_ms_extensions;
+
+/* Nonzero means don't recognize the keyword `asm'. */
+
+int flag_no_asm;
+
+/* Nonzero means give string constants the type `const char *', as mandated
+ by the standard. */
+
+int flag_const_strings;
+
+/* Nonzero means `$' can be in an identifier. */
+
+#ifndef DOLLARS_IN_IDENTIFIERS
+#define DOLLARS_IN_IDENTIFIERS 1
+#endif
+int dollars_in_ident = DOLLARS_IN_IDENTIFIERS;
+
+/* Nonzero means to treat bitfields as signed unless they say `unsigned'. */
+
+int flag_signed_bitfields = 1;
+int explicit_flag_signed_bitfields;
+
+/* Nonzero means warn about pointer casts that can drop a type qualifier
+ from the pointer target type. */
+
+int warn_cast_qual;
+
+/* Warn about functions which might be candidates for format attributes. */
+
+int warn_missing_format_attribute;
+
+/* Nonzero means warn about sizeof(function) or addition/subtraction
+ of function pointers. */
+
+int warn_pointer_arith;
+
+/* Nonzero means warn for any global function def
+ without separate previous prototype decl. */
+
+int warn_missing_prototypes;
+
+/* Warn if adding () is suggested. */
+
+int warn_parentheses;
+
+/* Warn if initializer is not completely bracketed. */
+
+int warn_missing_braces;
+
+/* Warn about comparison of signed and unsigned values.
+ If -1, neither -Wsign-compare nor -Wno-sign-compare has been specified. */
+
+int warn_sign_compare;
+
+/* Nonzero means warn about usage of long long when `-pedantic'. */
+
+int warn_long_long = 1;
+
+/* Nonzero means warn about deprecated conversion from string constant to
+ `char *'. */
+
+int warn_write_strings;
+
+/* Nonzero means warn about multiple (redundant) decls for the same single
+ variable or function. */
+
+int warn_redundant_decls;
+
+/* Warn about testing equality of floating point numbers. */
+
+int warn_float_equal;
+
+/* Warn about a subscript that has type char. */
+
+int warn_char_subscripts;
+
+/* Warn if a type conversion is done that might have confusing results. */
+
+int warn_conversion;
+
+/* Warn about #pragma directives that are not recognized. */
+
+int warn_unknown_pragmas; /* Tri state variable. */
+
+/* Warn about format/argument anomalies in calls to formatted I/O functions
+ (*printf, *scanf, strftime, strfmon, etc.). */
+
+int warn_format;
+
+/* Warn about Y2K problems with strftime formats. */
+
+int warn_format_y2k;
+
+/* Warn about excess arguments to formats. */
+
+int warn_format_extra_args;
+
+/* Warn about zero-length formats. */
+
+int warn_format_zero_length;
+
+/* Warn about non-literal format arguments. */
+
+int warn_format_nonliteral;
+
+/* Warn about possible security problems with calls to format functions. */
+
+int warn_format_security;
+
+
+/* C/ObjC language option variables. */
+
+
+/* Nonzero means message about use of implicit function declarations;
+ 1 means warning; 2 means error. */
+
+int mesg_implicit_function_declaration = -1;
+
+/* Nonzero means allow type mismatches in conditional expressions;
+ just make their values `void'. */
+
+int flag_cond_mismatch;
+
+/* Nonzero means enable C89 Amendment 1 features. */
+
+int flag_isoc94;
+
+/* Nonzero means use the ISO C99 dialect of C. */
+
+int flag_isoc99;
+
+/* Nonzero means that we have builtin functions, and main is an int */
+
+int flag_hosted = 1;
+
+/* Nonzero means add default format_arg attributes for functions not
+ in ISO C. */
+
+int flag_noniso_default_format_attributes = 1;
+
+/* Nonzero means warn when casting a function call to a type that does
+ not match the return type (e.g. (float)sqrt() or (anything*)malloc()
+ when there is no previous declaration of sqrt or malloc. */
+
+int warn_bad_function_cast;
+
+/* Warn about traditional constructs whose meanings changed in ANSI C. */
+
+int warn_traditional;
+
+/* Nonzero means warn for non-prototype function decls
+ or non-prototyped defs without previous prototype. */
+
+int warn_strict_prototypes;
+
+/* Nonzero means warn for any global function def
+ without separate previous decl. */
+
+int warn_missing_declarations;
+
+/* Nonzero means warn about declarations of objects not at
+ file-scope level and about *all* declarations of functions (whether
+ or static) not at file-scope level. Note that we exclude
+ implicit function declarations. To get warnings about those, use
+ -Wimplicit. */
+
+int warn_nested_externs;
+
+/* Warn if main is suspicious. */
+
+int warn_main;
+
/* Nonzero means warn about possible violations of sequence point rules. */
int warn_sequence_point;
/* Nonzero means to warn about compile-time division by zero. */
int warn_div_by_zero = 1;
+/* Nonzero means warn about use of implicit int. */
+
+int warn_implicit_int;
+
+/* Warn about NULL being passed to argument slots marked as requiring
+ non-NULL. */
+
+int warn_nonnull;
+
+
+/* ObjC language option variables. */
+
+
+/* Open and close the file for outputting class declarations, if
+ requested (ObjC). */
+
+int flag_gen_declaration;
+
+/* Generate code for GNU or NeXT runtime environment. */
+
+#ifdef NEXT_OBJC_RUNTIME
+int flag_next_runtime = 1;
+#else
+int flag_next_runtime = 0;
+#endif
+
+/* Tells the compiler that this is a special run. Do not perform any
+ compiling, instead we are to test some platform dependent features
+ and output a C header file with appropriate definitions. */
+
+int print_struct_values;
+
+/* ???. Undocumented. */
+
+const char *constant_string_class_name;
+
+/* Warn if multiple methods are seen for the same selector, but with
+ different argument types. Performs the check on the whole selector
+ table at the end of compilation. */
+
+int warn_selector;
+
+/* Warn if a @selector() is found, and no method with that selector
+ has been previously declared. The check is done on each
+ @selector() as soon as it is found - so it warns about forward
+ declarations. */
+
+int warn_undeclared_selector;
+
+/* Warn if methods required by a protocol are not implemented in the
+ class adopting it. When turned off, methods inherited to that
+ class are also considered implemented. */
+
+int warn_protocol = 1;
+
+
+/* C++ language option variables. */
+
+
+/* Nonzero means don't recognize any extension keywords. */
+
+int flag_no_gnu_keywords;
+
+/* Nonzero means do emit exported implementations of functions even if
+ they can be inlined. */
+
+int flag_implement_inlines = 1;
+
+/* Nonzero means do emit exported implementations of templates, instead of
+ multiple static copies in each file that needs a definition. */
+
+int flag_external_templates;
+
+/* Nonzero means that the decision to emit or not emit the implementation of a
+ template depends on where the template is instantiated, rather than where
+ it is defined. */
+
+int flag_alt_external_templates;
+
+/* Nonzero means that implicit instantiations will be emitted if needed. */
+
+int flag_implicit_templates = 1;
+
+/* Nonzero means that implicit instantiations of inline templates will be
+ emitted if needed, even if instantiations of non-inline templates
+ aren't. */
+
+int flag_implicit_inline_templates = 1;
+
+/* Nonzero means generate separate instantiation control files and
+ juggle them at link time. */
+
+int flag_use_repository;
+
+/* Nonzero if we want to issue diagnostics that the standard says are not
+ required. */
+
+int flag_optional_diags = 1;
+
+/* Nonzero means we should attempt to elide constructors when possible. */
+
+int flag_elide_constructors = 1;
+
+/* Nonzero means that member functions defined in class scope are
+ inline by default. */
+
+int flag_default_inline = 1;
+
+/* Controls whether compiler generates 'type descriptor' that give
+ run-time type information. */
+
+int flag_rtti = 1;
+
+/* Nonzero if we want to conserve space in the .o files. We do this
+ by putting uninitialized data and runtime initialized data into
+ .common instead of .data at the expense of not flagging multiple
+ definitions. */
+
+int flag_conserve_space;
+
+/* Nonzero if we want to obey access control semantics. */
+
+int flag_access_control = 1;
+
+/* Nonzero if we want to check the return value of new and avoid calling
+ constructors if it is a null pointer. */
+
+int flag_check_new;
+
+/* Nonzero if we want the new ISO rules for pushing a new scope for `for'
+ initialization variables.
+ 0: Old rules, set by -fno-for-scope.
+ 2: New ISO rules, set by -ffor-scope.
+ 1: Try to implement new ISO rules, but with backup compatibility
+ (and warnings). This is the default, for now. */
+
+int flag_new_for_scope = 1;
+
+/* Nonzero if we want to emit defined symbols with common-like linkage as
+ weak symbols where possible, in order to conform to C++ semantics.
+ Otherwise, emit them as local symbols. */
+
+int flag_weak = 1;
+
+/* Nonzero to use __cxa_atexit, rather than atexit, to register
+ destructors for local statics and global objects. */
+
+int flag_use_cxa_atexit = DEFAULT_USE_CXA_ATEXIT;
+
+/* Nonzero means output .vtable_{entry,inherit} for use in doing vtable gc. */
+
+int flag_vtable_gc;
+
+/* Nonzero means make the default pedwarns warnings instead of errors.
+ The value of this flag is ignored if -pedantic is specified. */
+
+int flag_permissive;
+
+/* Nonzero means to implement standard semantics for exception
+ specifications, calling unexpected if an exception is thrown that
+ doesn't match the specification. Zero means to treat them as
+ assertions and optimize accordingly, but not check them. */
+
+int flag_enforce_eh_specs = 1;
+
+/* Nonzero means warn about things that will change when compiling
+ with an ABI-compliant compiler. */
+
+int warn_abi = 0;
+
+/* Nonzero means warn about implicit declarations. */
+
+int warn_implicit = 1;
+
+/* Nonzero means warn when all ctors or dtors are private, and the class
+ has no friends. */
+
+int warn_ctor_dtor_privacy = 1;
+
+/* Nonzero means warn in function declared in derived class has the
+ same name as a virtual in the base class, but fails to match the
+ type signature of any virtual function in the base class. */
+
+int warn_overloaded_virtual;
+
+/* Nonzero means warn when declaring a class that has a non virtual
+ destructor, when it really ought to have a virtual one. */
+
+int warn_nonvdtor;
+
+/* Nonzero means warn when the compiler will reorder code. */
+
+int warn_reorder;
+
+/* Nonzero means warn when synthesis behavior differs from Cfront's. */
+
+int warn_synth;
+
+/* Nonzero means warn when we convert a pointer to member function
+ into a pointer to (void or function). */
+
+int warn_pmf2ptr = 1;
+
+/* Nonzero means warn about violation of some Effective C++ style rules. */
+
+int warn_ecpp;
+
+/* Nonzero means warn where overload resolution chooses a promotion from
+ unsigned to signed over a conversion to an unsigned of the same size. */
+
+int warn_sign_promo;
+
+/* Nonzero means warn when an old-style cast is used. */
+
+int warn_old_style_cast;
+
+/* Nonzero means warn when non-templatized friend functions are
+ declared within a template */
+
+int warn_nontemplate_friend = 1;
+
+/* Nonzero means complain about deprecated features. */
+
+int warn_deprecated = 1;
+
+/* Maximum template instantiation depth. This limit is rather
+ arbitrary, but it exists to limit the time it takes to notice
+ infinite template instantiations. */
+
+int max_tinst_depth = 500;
+
+
+
/* The elements of `ridpointers' are identifier nodes for the reserved
type names and storage classes. It is indexed by a RID_... value. */
tree *ridpointers;
bool *));
static tree handle_vector_size_attribute PARAMS ((tree *, tree, tree, int,
bool *));
+static tree handle_nonnull_attribute PARAMS ((tree *, tree, tree, int,
+ bool *));
+static tree handle_nothrow_attribute PARAMS ((tree *, tree, tree, int,
+ bool *));
static tree vector_size_helper PARAMS ((tree, tree));
+static void check_function_nonnull PARAMS ((tree, tree));
+static void check_nonnull_arg PARAMS ((void *, tree,
+ unsigned HOST_WIDE_INT));
+static bool nonnull_check_p PARAMS ((tree, unsigned HOST_WIDE_INT));
+static bool get_nonnull_operand PARAMS ((tree,
+ unsigned HOST_WIDE_INT *));
+void builtin_define_std PARAMS ((const char *));
+static void builtin_define_with_value PARAMS ((const char *, const char *,
+ int));
+static void builtin_define_with_int_value PARAMS ((const char *,
+ HOST_WIDE_INT));
+static void builtin_define_with_hex_fp_value PARAMS ((const char *, tree,
+ int, const char *,
+ const char *));
+static void builtin_define_type_max PARAMS ((const char *, tree, int));
+static void cpp_define_data_format PARAMS ((cpp_reader *));
+static void builtin_define_type_precision PARAMS ((const char *, tree));
+static void builtin_define_float_constants PARAMS ((const char *,
+ const char *, tree));
+
/* Table of machine-independent attributes common to all C-like languages. */
const struct attribute_spec c_common_attribute_table[] =
{
handle_vector_size_attribute },
{ "visibility", 1, 1, true, false, false,
handle_visibility_attribute },
+ { "nonnull", 0, -1, false, true, true,
+ handle_nonnull_attribute },
+ { "nothrow", 0, 0, true, false, false,
+ handle_nothrow_attribute },
+ { "may_alias", 0, 0, false, true, false, NULL },
{ NULL, 0, 0, false, false, false, NULL }
};
if (!decl)
{
tree saved_last_tree = last_tree;
+ /* If a tree is built here, it would normally have the lineno of
+ the current statement. Later this tree will be moved to the
+ beginning of the function and this line number will be wrong.
+ To avoid this problem set the lineno to 0 here; that prevents
+ it from appearing in the RTL. */
+ int saved_lineno = lineno;
+ lineno = 0;
decl = (*make_fname_decl) (id, fname_vars[ix].pretty);
if (last_tree != saved_last_tree)
saved_function_name_decls);
}
*fname_vars[ix].decl = decl;
+ lineno = saved_lineno;
}
if (!ix && !current_function_decl)
pedwarn_with_decl (decl, "`%s' is not defined outside of function scope");
return decl;
}
-/* Given a chain of STRING_CST nodes,
- concatenate them into one STRING_CST
- and give it a suitable array-of-chars data type. */
+/* Given a STRING_CST, give it a suitable array-of-chars data type. */
tree
-combine_strings (strings)
- tree strings;
+fix_string_type (value)
+ tree value;
{
- tree value, t;
- int length = 1;
- int wide_length = 0;
- int wide_flag = 0;
- int wchar_bytes = TYPE_PRECISION (wchar_type_node) / BITS_PER_UNIT;
- int nchars;
+ const int wchar_bytes = TYPE_PRECISION (wchar_type_node) / BITS_PER_UNIT;
+ const int wide_flag = TREE_TYPE (value) == wchar_array_type_node;
const int nchars_max = flag_isoc99 ? 4095 : 509;
-
- if (TREE_CHAIN (strings))
- {
- /* More than one in the chain, so concatenate. */
- char *p, *q;
-
- /* Don't include the \0 at the end of each substring,
- except for the last one.
- Count wide strings and ordinary strings separately. */
- for (t = strings; t; t = TREE_CHAIN (t))
- {
- if (TREE_TYPE (t) == wchar_array_type_node)
- {
- wide_length += (TREE_STRING_LENGTH (t) - wchar_bytes);
- wide_flag = 1;
- }
- else
- {
- length += (TREE_STRING_LENGTH (t) - 1);
- if (C_ARTIFICIAL_STRING_P (t) && !in_system_header)
- warning ("concatenation of string literals with __FUNCTION__ is deprecated. This feature will be removed in future");
- }
- }
-
- /* If anything is wide, the non-wides will be converted,
- which makes them take more space. */
- if (wide_flag)
- length = length * wchar_bytes + wide_length;
-
- p = alloca (length);
-
- /* Copy the individual strings into the new combined string.
- If the combined string is wide, convert the chars to ints
- for any individual strings that are not wide. */
-
- q = p;
- for (t = strings; t; t = TREE_CHAIN (t))
- {
- int len = (TREE_STRING_LENGTH (t)
- - ((TREE_TYPE (t) == wchar_array_type_node)
- ? wchar_bytes : 1));
- if ((TREE_TYPE (t) == wchar_array_type_node) == wide_flag)
- {
- memcpy (q, TREE_STRING_POINTER (t), len);
- q += len;
- }
- else
- {
- int i, j;
- for (i = 0; i < len; i++)
- {
- if (BYTES_BIG_ENDIAN)
- {
- for (j=0; j<(WCHAR_TYPE_SIZE / BITS_PER_UNIT)-1; j++)
- *q++ = 0;
- *q++ = TREE_STRING_POINTER (t)[i];
- }
- else
- {
- *q++ = TREE_STRING_POINTER (t)[i];
- for (j=0; j<(WCHAR_TYPE_SIZE / BITS_PER_UNIT)-1; j++)
- *q++ = 0;
- }
- }
- }
- }
- if (wide_flag)
- {
- int i;
- for (i = 0; i < wchar_bytes; i++)
- *q++ = 0;
- }
- else
- *q = 0;
-
- value = build_string (length, p);
- }
- else
- {
- value = strings;
- length = TREE_STRING_LENGTH (value);
- if (TREE_TYPE (value) == wchar_array_type_node)
- wide_flag = 1;
- }
+ int length = TREE_STRING_LENGTH (value);
+ int nchars;
/* Compute the number of elements, for the array type. */
nchars = wide_flag ? length / wchar_bytes : length;
TREE_STATIC (value) = 1;
return value;
}
+
+/* Given a VARRAY of STRING_CST nodes, concatenate them into one
+ STRING_CST. */
+
+tree
+combine_strings (strings)
+ varray_type strings;
+{
+ const int wchar_bytes = TYPE_PRECISION (wchar_type_node) / BITS_PER_UNIT;
+ const int nstrings = VARRAY_ACTIVE_SIZE (strings);
+ tree value, t;
+ int length = 1;
+ int wide_length = 0;
+ int wide_flag = 0;
+ int i;
+ char *p, *q;
+
+ /* Don't include the \0 at the end of each substring. Count wide
+ strings and ordinary strings separately. */
+ for (i = 0; i < nstrings; ++i)
+ {
+ t = VARRAY_TREE (strings, i);
+
+ if (TREE_TYPE (t) == wchar_array_type_node)
+ {
+ wide_length += TREE_STRING_LENGTH (t) - wchar_bytes;
+ wide_flag = 1;
+ }
+ else
+ {
+ length += (TREE_STRING_LENGTH (t) - 1);
+ if (C_ARTIFICIAL_STRING_P (t) && !in_system_header)
+ warning ("concatenation of string literals with __FUNCTION__ is deprecated");
+ }
+ }
+
+ /* If anything is wide, the non-wides will be converted,
+ which makes them take more space. */
+ if (wide_flag)
+ length = length * wchar_bytes + wide_length;
+
+ p = xmalloc (length);
+
+ /* Copy the individual strings into the new combined string.
+ If the combined string is wide, convert the chars to ints
+ for any individual strings that are not wide. */
+
+ q = p;
+ for (i = 0; i < nstrings; ++i)
+ {
+ int len, this_wide;
+
+ t = VARRAY_TREE (strings, i);
+ this_wide = TREE_TYPE (t) == wchar_array_type_node;
+ len = TREE_STRING_LENGTH (t) - (this_wide ? wchar_bytes : 1);
+ if (this_wide == wide_flag)
+ {
+ memcpy (q, TREE_STRING_POINTER (t), len);
+ q += len;
+ }
+ else
+ {
+ const int nzeros = (TYPE_PRECISION (wchar_type_node)
+ / BITS_PER_UNIT) - 1;
+ int j, k;
+
+ if (BYTES_BIG_ENDIAN)
+ {
+ for (k = 0; k < len; k++)
+ {
+ for (j = 0; j < nzeros; j++)
+ *q++ = 0;
+ *q++ = TREE_STRING_POINTER (t)[k];
+ }
+ }
+ else
+ {
+ for (k = 0; k < len; k++)
+ {
+ *q++ = TREE_STRING_POINTER (t)[k];
+ for (j = 0; j < nzeros; j++)
+ *q++ = 0;
+ }
+ }
+ }
+ }
+
+ /* Nul terminate the string. */
+ if (wide_flag)
+ {
+ for (i = 0; i < wchar_bytes; i++)
+ *q++ = 0;
+ }
+ else
+ *q = 0;
+
+ value = build_string (length, p);
+ free (p);
+
+ if (wide_flag)
+ TREE_TYPE (value) = wchar_array_type_node;
+ else
+ TREE_TYPE (value) = char_array_type_node;
+
+ return value;
+}
\f
static int is_valid_printf_arglist PARAMS ((tree));
static rtx c_expand_builtin PARAMS ((tree, rtx, enum machine_mode, enum expand_modifier));
}
}
-/* Try to warn for undefined behaviour in EXPR due to missing sequence
+/* Try to warn for undefined behavior in EXPR due to missing sequence
points. */
static void
if (mode == TYPE_MODE (build_pointer_type (integer_type_node)))
return build_pointer_type (integer_type_node);
-#ifdef VECTOR_MODE_SUPPORTED_P
- if (VECTOR_MODE_SUPPORTED_P (mode))
- {
- switch (mode)
- {
- case V16QImode:
- return unsignedp ? unsigned_V16QI_type_node : V16QI_type_node;
- case V8HImode:
- return unsignedp ? unsigned_V8HI_type_node : V8HI_type_node;
- case V4SImode:
- return unsignedp ? unsigned_V4SI_type_node : V4SI_type_node;
- case V2SImode:
- return unsignedp ? unsigned_V2SI_type_node : V2SI_type_node;
- case V4HImode:
- return unsignedp ? unsigned_V4HI_type_node : V4HI_type_node;
- case V8QImode:
- return unsignedp ? unsigned_V8QI_type_node : V8QI_type_node;
- case V16SFmode:
- return V16SF_type_node;
- case V4SFmode:
- return V4SF_type_node;
- case V2SFmode:
- return V2SF_type_node;
- default:
- break;
- }
+ switch (mode)
+ {
+ case V16QImode:
+ return unsignedp ? unsigned_V16QI_type_node : V16QI_type_node;
+ case V8HImode:
+ return unsignedp ? unsigned_V8HI_type_node : V8HI_type_node;
+ case V4SImode:
+ return unsignedp ? unsigned_V4SI_type_node : V4SI_type_node;
+ case V2DImode:
+ return unsignedp ? unsigned_V2DI_type_node : V2DI_type_node;
+ case V2SImode:
+ return unsignedp ? unsigned_V2SI_type_node : V2SI_type_node;
+ case V4HImode:
+ return unsignedp ? unsigned_V4HI_type_node : V4HI_type_node;
+ case V8QImode:
+ return unsignedp ? unsigned_V8QI_type_node : V8QI_type_node;
+ case V1DImode:
+ return unsignedp ? unsigned_V1DI_type_node : V1DI_type_node;
+ case V16SFmode:
+ return V16SF_type_node;
+ case V4SFmode:
+ return V4SF_type_node;
+ case V2SFmode:
+ return V2SF_type_node;
+ case V2DFmode:
+ return V2DF_type_node;
+ default:
+ break;
}
-#endif
return 0;
}
type = c_common_unsigned_type (type);
}
- if (!max_gt && !unsignedp0 && TREE_CODE (primop0) != INTEGER_CST)
+ if (TREE_CODE (primop0) != INTEGER_CST)
{
- /* This is the case of (char)x >?< 0x80, which people used to use
- expecting old C compilers to change the 0x80 into -0x80. */
- if (val == boolean_false_node)
- warning ("comparison is always false due to limited range of data type");
- if (val == boolean_true_node)
- warning ("comparison is always true due to limited range of data type");
- }
-
- if (!min_lt && unsignedp0 && TREE_CODE (primop0) != INTEGER_CST)
- {
- /* This is the case of (unsigned char)x >?< -1 or < 0. */
if (val == boolean_false_node)
warning ("comparison is always false due to limited range of data type");
if (val == boolean_true_node)
case ABS_EXPR:
case FLOAT_EXPR:
case FFS_EXPR:
- /* These don't change whether an object is non-zero or zero. */
+ /* These don't change whether an object is nonzero or zero. */
return c_common_truthvalue_conversion (TREE_OPERAND (expr, 0));
case LROTATE_EXPR:
case RROTATE_EXPR:
- /* These don't change whether an object is zero or non-zero, but
+ /* These don't change whether an object is zero or nonzero, but
we can't ignore them if their second arg has side-effects. */
if (TREE_SIDE_EFFECTS (TREE_OPERAND (expr, 1)))
return build (COMPOUND_EXPR, boolean_type_node, TREE_OPERAND (expr, 1),
\f
static tree builtin_function_2 PARAMS ((const char *, const char *, tree, tree,
int, enum built_in_class, int, int,
- int));
+ tree));
/* Make a variant type in the proper way for C/C++, propagating qualifiers
down to the element type of an array. */
{
tree u;
- /* We know nothing about vector types */
- if (TREE_CODE (t) == VECTOR_TYPE)
- return 0;
-
/* Permit type-punning when accessing a union, provided the access
is directly through the union. For example, this code does not
permit taking the address of a union member and then storing
&& TREE_CODE (TREE_TYPE (TREE_OPERAND (u, 0))) == UNION_TYPE)
return 0;
- /* If this is a char *, the ANSI C standard says it can alias
- anything. Note that all references need do this. */
- if (TREE_CODE_CLASS (TREE_CODE (t)) == 'r'
- && TREE_CODE (TREE_TYPE (t)) == INTEGER_TYPE
- && TYPE_PRECISION (TREE_TYPE (t)) == TYPE_PRECISION (char_type_node))
- return 0;
-
/* That's all the expressions we handle specially. */
if (! TYPE_P (t))
return -1;
+ /* The C standard guarantess that any object may be accessed via an
+ lvalue that has character type. */
+ if (t == char_type_node
+ || t == signed_char_type_node
+ || t == unsigned_char_type_node)
+ return 0;
+
+ /* If it has the may_alias attribute, it can alias anything. */
+ if (lookup_attribute ("may_alias", TYPE_ATTRIBUTES (t)))
+ return 0;
+
/* The C standard specifically allows aliasing between signed and
unsigned variants of the same type. We treat the signed
variant as canonical. */
return -1;
}
\f
-/* Implement the __alignof keyword: Return the minimum required
- alignment of TYPE, measured in bytes. */
-
+/* Compute the value of 'sizeof (TYPE)' or '__alignof__ (TYPE)', where the
+ second parameter indicates which OPERATOR is being applied. The COMPLAIN
+ flag controls whether we should diagnose possibly ill-formed
+ constructs or not. */
tree
-c_alignof (type)
+c_sizeof_or_alignof_type (type, op, complain)
tree type;
+ enum tree_code op;
+ int complain;
{
- enum tree_code code = TREE_CODE (type);
- tree t;
-
- /* In C++, sizeof applies to the referent. Handle alignof the same way. */
- if (code == REFERENCE_TYPE)
+ const char *op_name;
+ tree value = NULL;
+ enum tree_code type_code = TREE_CODE (type);
+
+ my_friendly_assert (op == SIZEOF_EXPR || op == ALIGNOF_EXPR, 20020720);
+ op_name = op == SIZEOF_EXPR ? "sizeof" : "__alignof__";
+
+ if (type_code == FUNCTION_TYPE)
{
- type = TREE_TYPE (type);
- code = TREE_CODE (type);
+ if (op == SIZEOF_EXPR)
+ {
+ if (complain && (pedantic || warn_pointer_arith))
+ pedwarn ("invalid application of `sizeof' to a function type");
+ value = size_one_node;
+ }
+ else
+ value = size_int (FUNCTION_BOUNDARY / BITS_PER_UNIT);
+ }
+ else if (type_code == VOID_TYPE || type_code == ERROR_MARK)
+ {
+ if (type_code == VOID_TYPE
+ && complain && (pedantic || warn_pointer_arith))
+ pedwarn ("invalid application of `%s' to a void type", op_name);
+ value = size_one_node;
}
-
- if (code == FUNCTION_TYPE)
- t = size_int (FUNCTION_BOUNDARY / BITS_PER_UNIT);
- else if (code == VOID_TYPE || code == ERROR_MARK)
- t = size_one_node;
else if (!COMPLETE_TYPE_P (type))
{
- error ("__alignof__ applied to an incomplete type");
- t = size_zero_node;
+ if (complain)
+ error ("invalid application of `%s' to an incomplete type", op_name);
+ value = size_zero_node;
}
else
- t = size_int (TYPE_ALIGN (type) / BITS_PER_UNIT);
+ {
+ if (op == SIZEOF_EXPR)
+ /* Convert in case a char is more than one unit. */
+ value = size_binop (CEIL_DIV_EXPR, TYPE_SIZE_UNIT (type),
+ size_int (TYPE_PRECISION (char_type_node)
+ / BITS_PER_UNIT));
+ else
+ value = size_int (TYPE_ALIGN (type) / BITS_PER_UNIT);
+ }
- return fold (build1 (NOP_EXPR, c_size_type_node, t));
+ /* VALUE will have an integer type with TYPE_IS_SIZETYPE set.
+ TYPE_IS_SIZETYPE means that certain things (like overflow) will
+ never happen. However, this node should really have type
+ `size_t', which is just a typedef for an ordinary integer type. */
+ value = fold (build1 (NOP_EXPR, c_size_type_node, value));
+ my_friendly_assert (!TYPE_IS_SIZETYPE (TREE_TYPE (value)), 20001021);
+
+ return value;
}
/* Implement the __alignof keyword: Return the minimum required
return fold (build1 (NOP_EXPR, c_size_type_node, t));
}
\f
+/* Handle C and C++ default attributes. */
+
+enum built_in_attribute
+{
+#define DEF_ATTR_NULL_TREE(ENUM) ENUM,
+#define DEF_ATTR_INT(ENUM, VALUE) ENUM,
+#define DEF_ATTR_IDENT(ENUM, STRING) ENUM,
+#define DEF_ATTR_TREE_LIST(ENUM, PURPOSE, VALUE, CHAIN) ENUM,
+#define DEF_FN_ATTR(NAME, ATTRS, PREDICATE) /* No entry needed in enum. */
+#include "builtin-attrs.def"
+#undef DEF_ATTR_NULL_TREE
+#undef DEF_ATTR_INT
+#undef DEF_ATTR_IDENT
+#undef DEF_ATTR_TREE_LIST
+#undef DEF_FN_ATTR
+ ATTR_LAST
+};
+
+static GTY(()) tree built_in_attributes[(int) ATTR_LAST];
+
+static bool c_attrs_initialized = false;
+
+static void c_init_attributes PARAMS ((void));
+
/* Build tree nodes and builtin functions common to both C and C++ language
frontends. */
(*targetm.init_builtins) ();
/* This is special for C++ so functions can be overloaded. */
- wchar_type_node = get_identifier (flag_short_wchar
- ? "short unsigned int"
- : WCHAR_TYPE);
+ wchar_type_node = get_identifier (MODIFIED_WCHAR_TYPE);
wchar_type_node = TREE_TYPE (identifier_global_value (wchar_type_node));
wchar_type_size = TYPE_PRECISION (wchar_type_node);
if (c_language == clk_cplusplus)
#undef DEF_FUNCTION_TYPE_VAR_1
#undef DEF_POINTER_TYPE
-#define DEF_BUILTIN(ENUM, NAME, CLASS, \
- TYPE, LIBTYPE, BOTH_P, FALLBACK_P, NONANSI_P) \
+ if (!c_attrs_initialized)
+ c_init_attributes ();
+
+#define DEF_BUILTIN(ENUM, NAME, CLASS, TYPE, LIBTYPE, \
+ BOTH_P, FALLBACK_P, NONANSI_P, ATTRS) \
if (NAME) \
{ \
tree decl; \
CLASS, \
(FALLBACK_P \
? (NAME + strlen ("__builtin_")) \
- : NULL)); \
+ : NULL), \
+ built_in_attributes[(int) ATTRS]); \
else \
decl = builtin_function_2 (NAME, \
NAME + strlen ("__builtin_"), \
CLASS, \
FALLBACK_P, \
NONANSI_P, \
- /*noreturn_p=*/0); \
+ built_in_attributes[(int) ATTRS]); \
\
built_in_decls[(int) ENUM] = decl; \
}
#include "builtins.def"
#undef DEF_BUILTIN
- /* Declare _exit and _Exit just to mark them as non-returning. */
- builtin_function_2 (NULL, "_exit", NULL_TREE,
- builtin_types[BT_FN_VOID_INT],
- 0, NOT_BUILT_IN, 0, 1, 1);
- builtin_function_2 (NULL, "_Exit", NULL_TREE,
- builtin_types[BT_FN_VOID_INT],
- 0, NOT_BUILT_IN, 0, !flag_isoc99, 1);
-
- /* Declare these functions non-returning
- to avoid spurious "control drops through" warnings. */
- builtin_function_2 (NULL, "abort",
- NULL_TREE, ((c_language == clk_cplusplus)
- ? builtin_types[BT_FN_VOID]
- : builtin_types[BT_FN_VOID_VAR]),
- 0, NOT_BUILT_IN, 0, 0, 1);
-
- builtin_function_2 (NULL, "exit",
- NULL_TREE, ((c_language == clk_cplusplus)
- ? builtin_types[BT_FN_VOID_INT]
- : builtin_types[BT_FN_VOID_VAR]),
- 0, NOT_BUILT_IN, 0, 0, 1);
-
main_identifier_node = get_identifier ("main");
}
conflicts with headers. FUNCTION_CODE and CLASS are as for
builtin_function. If LIBRARY_NAME_P is nonzero, NAME is passed as
the LIBRARY_NAME parameter to builtin_function when declaring BUILTIN_NAME.
- If NONANSI_P is nonzero, the name NAME is treated as a non-ANSI name; if
- NORETURN_P is nonzero, the function is marked as non-returning.
+ If NONANSI_P is nonzero, the name NAME is treated as a non-ANSI name;
+ ATTRS is the tree list representing the builtin's function attributes.
Returns the declaration of BUILTIN_NAME, if any, otherwise
the declaration of NAME. Does not declare NAME if flag_no_builtin,
or if NONANSI_P and flag_no_nonansi_builtin. */
static tree
builtin_function_2 (builtin_name, name, builtin_type, type, function_code,
- class, library_name_p, nonansi_p, noreturn_p)
+ class, library_name_p, nonansi_p, attrs)
const char *builtin_name;
const char *name;
tree builtin_type;
enum built_in_class class;
int library_name_p;
int nonansi_p;
- int noreturn_p;
+ tree attrs;
{
tree bdecl = NULL_TREE;
tree decl = NULL_TREE;
if (builtin_name != 0)
{
bdecl = builtin_function (builtin_name, builtin_type, function_code,
- class, library_name_p ? name : NULL);
- if (noreturn_p)
- {
- TREE_THIS_VOLATILE (bdecl) = 1;
- TREE_SIDE_EFFECTS (bdecl) = 1;
- }
+ class, library_name_p ? name : NULL,
+ attrs);
}
if (name != 0 && !flag_no_builtin && !builtin_function_disabled_p (name)
&& !(nonansi_p && flag_no_nonansi_builtin))
{
- decl = builtin_function (name, type, function_code, class, NULL);
+ decl = builtin_function (name, type, function_code, class, NULL,
+ attrs);
if (nonansi_p)
DECL_BUILT_IN_NONANSI (decl) = 1;
- if (noreturn_p)
- {
- TREE_THIS_VOLATILE (decl) = 1;
- TREE_SIDE_EFFECTS (decl) = 1;
- }
}
return (bdecl != 0 ? bdecl : decl);
}
return NULL_TREE;
}
-/* Returns non-zero if CODE is the code for a statement. */
+/* Returns nonzero if CODE is the code for a statement. */
int
statement_code_p (code)
return result;
}
-/* Mark P (a stmt_tree) for GC. The use of a `void *' for the
- parameter allows this function to be used as a GC-marking
- function. */
-
-void
-mark_stmt_tree (p)
- void *p;
-{
- stmt_tree st = (stmt_tree) p;
-
- ggc_mark_tree (st->x_last_stmt);
- ggc_mark_tree (st->x_last_expr_type);
-}
-
-/* Mark LD for GC. */
-
-void
-c_mark_lang_decl (c)
- struct c_lang_decl *c ATTRIBUTE_UNUSED;
-{
-}
-
-/* Mark F for GC. */
-
-void
-mark_c_language_function (f)
- struct language_function *f;
-{
- if (!f)
- return;
-
- mark_stmt_tree (&f->x_stmt_tree);
- ggc_mark_tree (f->x_scope_stmt_stack);
-}
-
/* Hook used by expand_expr to expand language-specific tree codes. */
rtx
tree rtl_expr;
rtx result;
bool preserve_result = false;
+ bool return_target = false;
/* Since expand_expr_stmt calls free_temp_slots after every
expression statement, we must call push_temp_slots here.
if (TREE_CODE (last) == SCOPE_STMT
&& TREE_CODE (expr) == EXPR_STMT)
{
- TREE_ADDRESSABLE (expr) = 1;
- preserve_result = true;
+ if (target && TREE_CODE (EXPR_STMT_EXPR (expr)) == VAR_DECL
+ && DECL_RTL_IF_SET (EXPR_STMT_EXPR (expr)) == target)
+ /* If the last expression is a variable whose RTL is the
+ same as our target, just return the target; if it
+ isn't valid expanding the decl would produce different
+ RTL, and store_expr would try to do a copy. */
+ return_target = true;
+ else
+ {
+ /* Otherwise, note that we want the value from the last
+ expression. */
+ TREE_ADDRESSABLE (expr) = 1;
+ preserve_result = true;
+ }
}
}
expand_end_stmt_expr (rtl_expr);
result = expand_expr (rtl_expr, target, tmode, modifier);
- if (preserve_result && GET_CODE (result) == MEM)
+ if (return_target)
+ result = target;
+ else if (preserve_result && GET_CODE (result) == MEM)
{
if (GET_MODE (result) != BLKmode)
result = copy_to_reg (result);
memcpy (newstr, TREE_STRING_POINTER (stripped_string), newlen - 1);
newstr[newlen - 1] = 0;
- arglist = combine_strings (build_string (newlen, newstr));
+ arglist = fix_string_type (build_string (newlen, newstr));
arglist = build_tree_list (NULL_TREE, arglist);
fn = fn_puts;
}
return val;
}
\f
-/* Handle C and C++ default attributes. */
-
-enum built_in_attribute
+/* Define macros necessary to describe fundamental data type formats. */
+static void
+cpp_define_data_format (pfile)
+ cpp_reader *pfile;
{
-#define DEF_ATTR_NULL_TREE(ENUM) ENUM,
-#define DEF_ATTR_INT(ENUM, VALUE) ENUM,
-#define DEF_ATTR_IDENT(ENUM, STRING) ENUM,
-#define DEF_ATTR_TREE_LIST(ENUM, PURPOSE, VALUE, CHAIN) ENUM,
-#define DEF_FN_ATTR(NAME, ATTRS, PREDICATE) /* No entry needed in enum. */
-#include "builtin-attrs.def"
-#undef DEF_ATTR_NULL_TREE
-#undef DEF_ATTR_INT
-#undef DEF_ATTR_IDENT
-#undef DEF_ATTR_TREE_LIST
-#undef DEF_FN_ATTR
- ATTR_LAST
-};
+ const char *format;
+
+ /* Define supported floating-point format enumeration values. */
+ cpp_define (pfile, "__UNKNOWN_FORMAT__=0");
+ cpp_define (pfile, "__IEEE_FORMAT__=1");
+ cpp_define (pfile, "__IBM_FORMAT__=2");
+ cpp_define (pfile, "__C4X_FORMAT__=3");
+ cpp_define (pfile, "__VAX_FORMAT__=4");
+
+ switch (TARGET_FLOAT_FORMAT)
+ {
+ case UNKNOWN_FLOAT_FORMAT:
+ format = "__UNKNOWN_FORMAT__";
+ break;
+ case IEEE_FLOAT_FORMAT:
+ format = "__IEEE_FORMAT__";
+ break;
+ case VAX_FLOAT_FORMAT:
+ format = "__VAX_FORMAT__";
+ break;
+ case IBM_FLOAT_FORMAT:
+ format = "__IBM_FORMAT__";
+ break;
+ case C4X_FLOAT_FORMAT:
+ format = "__C4X_FORMAT__";
+ break;
+ default:
+ abort();
+ }
-static tree built_in_attributes[(int) ATTR_LAST];
+ builtin_define_with_value ("__GCC_FLOAT_FORMAT__", format, 0);
+}
-static bool c_attrs_initialized = false;
+/* Define NAME with value TYPE precision. */
+static void
+builtin_define_type_precision (name, type)
+ const char *name;
+ tree type;
+{
+ builtin_define_with_int_value (name, TYPE_PRECISION (type));
+}
-static void c_init_attributes PARAMS ((void));
+/* Define the float.h constants for TYPE using NAME_PREFIX and FP_SUFFIX. */
+static void
+builtin_define_float_constants (name_prefix, fp_suffix, type)
+ const char *name_prefix;
+ const char *fp_suffix;
+ tree type;
+{
+ /* Used to convert radix-based values to base 10 values in several cases.
+
+ In the max_exp -> max_10_exp conversion for 128-bit IEEE, we need at
+ least 6 significant digits for correct results. Using the fraction
+ formed by (log(2)*1e6)/(log(10)*1e6) overflows a 32-bit integer as an
+ intermediate; perhaps someone can find a better approximation, in the
+ mean time, I suspect using doubles won't harm the bootstrap here. */
+
+ const double log10_2 = .30102999566398119521;
+ double log10_b;
+ const struct real_format *fmt;
+
+ char name[64], buf[128];
+ int dig, min_10_exp, max_10_exp;
+ int decimal_dig;
+
+ fmt = real_format_for_mode[TYPE_MODE (type) - QFmode];
+
+ /* The radix of the exponent representation. */
+ if (type == float_type_node)
+ builtin_define_with_int_value ("__FLT_RADIX__", fmt->b);
+ log10_b = log10_2 * fmt->log2_b;
+
+ /* The number of radix digits, p, in the floating-point significand. */
+ sprintf (name, "__%s_MANT_DIG__", name_prefix);
+ builtin_define_with_int_value (name, fmt->p);
+
+ /* The number of decimal digits, q, such that any floating-point number
+ with q decimal digits can be rounded into a floating-point number with
+ p radix b digits and back again without change to the q decimal digits,
+
+ p log10 b if b is a power of 10
+ floor((p - 1) log10 b) otherwise
+ */
+ dig = (fmt->p - 1) * log10_b;
+ sprintf (name, "__%s_DIG__", name_prefix);
+ builtin_define_with_int_value (name, dig);
+
+ /* The minimum negative int x such that b**(x-1) is a normalized float. */
+ sprintf (name, "__%s_MIN_EXP__", name_prefix);
+ sprintf (buf, "(%d)", fmt->emin);
+ builtin_define_with_value (name, buf, 0);
+
+ /* The minimum negative int x such that 10**x is a normalized float,
+
+ ceil (log10 (b ** (emin - 1)))
+ = ceil (log10 (b) * (emin - 1))
+
+ Recall that emin is negative, so the integer truncation calculates
+ the ceiling, not the floor, in this case. */
+ min_10_exp = (fmt->emin - 1) * log10_b;
+ sprintf (name, "__%s_MIN_10_EXP__", name_prefix);
+ sprintf (buf, "(%d)", min_10_exp);
+ builtin_define_with_value (name, buf, 0);
+
+ /* The maximum int x such that b**(x-1) is a representable float. */
+ sprintf (name, "__%s_MAX_EXP__", name_prefix);
+ builtin_define_with_int_value (name, fmt->emax);
+
+ /* The maximum int x such that 10**x is in the range of representable
+ finite floating-point numbers,
+
+ floor (log10((1 - b**-p) * b**emax))
+ = floor (log10(1 - b**-p) + log10(b**emax))
+ = floor (log10(1 - b**-p) + log10(b)*emax)
+
+ The safest thing to do here is to just compute this number. But since
+ we don't link cc1 with libm, we cannot. We could implement log10 here
+ a series expansion, but that seems too much effort because:
+
+ Note that the first term, for all extant p, is a number exceedingly close
+ to zero, but slightly negative. Note that the second term is an integer
+ scaling an irrational number, and that because of the floor we are only
+ interested in its integral portion.
+
+ In order for the first term to have any effect on the integral portion
+ of the second term, the second term has to be exceedingly close to an
+ integer itself (e.g. 123.000000000001 or something). Getting a result
+ that close to an integer requires that the irrational multiplicand have
+ a long series of zeros in its expansion, which doesn't occur in the
+ first 20 digits or so of log10(b).
+
+ Hand-waving aside, crunching all of the sets of constants above by hand
+ does not yield a case for which the first term is significant, which
+ in the end is all that matters. */
+ max_10_exp = fmt->emax * log10_b;
+ sprintf (name, "__%s_MAX_10_EXP__", name_prefix);
+ builtin_define_with_int_value (name, max_10_exp);
+
+ /* The number of decimal digits, n, such that any floating-point number
+ can be rounded to n decimal digits and back again without change to
+ the value.
+
+ p * log10(b) if b is a power of 10
+ ceil(1 + p * log10(b)) otherwise
+
+ The only macro we care about is this number for the widest supported
+ floating type, but we want this value for rendering constants below. */
+ {
+ double d_decimal_dig = 1 + fmt->p * log10_b;
+ decimal_dig = d_decimal_dig;
+ if (decimal_dig < d_decimal_dig)
+ decimal_dig++;
+ }
+ if (type == long_double_type_node)
+ builtin_define_with_int_value ("__DECIMAL_DIG__", decimal_dig);
+
+ /* Since, for the supported formats, B is always a power of 2, we
+ construct the following numbers directly as a hexadecimal
+ constants. */
+
+ /* The maximum representable finite floating-point number,
+ (1 - b**-p) * b**emax */
+ {
+ int i, n;
+ char *p;
+
+ strcpy (buf, "0x0.");
+ n = fmt->p * fmt->log2_b;
+ for (i = 0, p = buf + 4; i + 3 < n; i += 4)
+ *p++ = 'f';
+ if (i < n)
+ *p++ = "08ce"[n - i];
+ sprintf (p, "p%d", fmt->emax * fmt->log2_b);
+ }
+ sprintf (name, "__%s_MAX__", name_prefix);
+ builtin_define_with_hex_fp_value (name, type, decimal_dig, buf, fp_suffix);
+
+ /* The minimum normalized positive floating-point number,
+ b**(emin-1). */
+ sprintf (name, "__%s_MIN__", name_prefix);
+ sprintf (buf, "0x1p%d", (fmt->emin - 1) * fmt->log2_b);
+ builtin_define_with_hex_fp_value (name, type, decimal_dig, buf, fp_suffix);
+
+ /* The difference between 1 and the least value greater than 1 that is
+ representable in the given floating point type, b**(1-p). */
+ sprintf (name, "__%s_EPSILON__", name_prefix);
+ sprintf (buf, "0x1p%d", (1 - fmt->p) * fmt->log2_b);
+ builtin_define_with_hex_fp_value (name, type, decimal_dig, buf, fp_suffix);
+
+ /* For C++ std::numeric_limits<T>::denorm_min. The minimum denormalized
+ positive floating-point number, b**(emin-p). Zero for formats that
+ don't support denormals. */
+ sprintf (name, "__%s_DENORM_MIN__", name_prefix);
+ if (fmt->has_denorm)
+ {
+ sprintf (buf, "0x1p%d", (fmt->emin - fmt->p) * fmt->log2_b);
+ builtin_define_with_hex_fp_value (name, type, decimal_dig,
+ buf, fp_suffix);
+ }
+ else
+ {
+ sprintf (buf, "0.0%s", fp_suffix);
+ builtin_define_with_value (name, buf, 0);
+ }
+}
-/* Common initialization before parsing options. */
+/* Hook that registers front end and target-specific built-ins. */
void
-c_common_init_options (lang)
- enum c_language_kind lang;
+cb_register_builtins (pfile)
+ cpp_reader *pfile;
{
- c_language = lang;
- parse_in = cpp_create_reader (lang == clk_c ? CLK_GNUC89:
- lang == clk_cplusplus ? CLK_GNUCXX: CLK_OBJC);
+ /* -undef turns off target-specific built-ins. */
+ if (flag_undef)
+ return;
+
+ if (c_language == clk_cplusplus)
+ {
+ if (SUPPORTS_ONE_ONLY)
+ cpp_define (pfile, "__GXX_WEAK__=1");
+ else
+ cpp_define (pfile, "__GXX_WEAK__=0");
+ if (flag_exceptions)
+ cpp_define (pfile, "__EXCEPTIONS");
+ if (warn_deprecated)
+ cpp_define (pfile, "__DEPRECATED");
+ }
+
+ /* represents the C++ ABI version, always defined so it can be used while
+ preprocessing C and assembler. */
+ cpp_define (pfile, "__GXX_ABI_VERSION=102");
+
+ /* libgcc needs to know this. */
+ if (USING_SJLJ_EXCEPTIONS)
+ cpp_define (pfile, "__USING_SJLJ_EXCEPTIONS__");
+
+ /* stddef.h needs to know these. */
+ builtin_define_with_value ("__SIZE_TYPE__", SIZE_TYPE, 0);
+ builtin_define_with_value ("__PTRDIFF_TYPE__", PTRDIFF_TYPE, 0);
+ builtin_define_with_value ("__WCHAR_TYPE__", MODIFIED_WCHAR_TYPE, 0);
+ builtin_define_with_value ("__WINT_TYPE__", WINT_TYPE, 0);
+
+ /* limits.h needs to know these. */
+ builtin_define_type_max ("__SCHAR_MAX__", signed_char_type_node, 0);
+ builtin_define_type_max ("__SHRT_MAX__", short_integer_type_node, 0);
+ builtin_define_type_max ("__INT_MAX__", integer_type_node, 0);
+ builtin_define_type_max ("__LONG_MAX__", long_integer_type_node, 1);
+ builtin_define_type_max ("__LONG_LONG_MAX__", long_long_integer_type_node, 2);
+
+ builtin_define_type_precision ("__CHAR_BIT__", char_type_node);
+ builtin_define_type_precision ("__WCHAR_BIT__", wchar_type_node);
+ builtin_define_type_precision ("__SHRT_BIT__", short_integer_type_node);
+ builtin_define_type_precision ("__INT_BIT__", integer_type_node);
+ builtin_define_type_precision ("__LONG_BIT__", long_integer_type_node);
+ builtin_define_type_precision ("__LONG_LONG_BIT__",
+ long_long_integer_type_node);
+ builtin_define_type_precision ("__FLOAT_BIT__", float_type_node);
+ builtin_define_type_precision ("__DOUBLE_BIT__", double_type_node);
+ builtin_define_type_precision ("__LONG_DOUBLE_BIT__", long_double_type_node);
+
+ /* float.h needs to know these. */
+
+ builtin_define_with_int_value ("__FLT_EVAL_METHOD__",
+ TARGET_FLT_EVAL_METHOD);
+
+ builtin_define_float_constants ("FLT", "F", float_type_node);
+ builtin_define_float_constants ("DBL", "", double_type_node);
+ builtin_define_float_constants ("LDBL", "L", long_double_type_node);
+
+ /* For use in assembly language. */
+ builtin_define_with_value ("__REGISTER_PREFIX__", REGISTER_PREFIX, 0);
+ builtin_define_with_value ("__USER_LABEL_PREFIX__", user_label_prefix, 0);
+
+ /* Misc. */
+ builtin_define_with_value ("__VERSION__", version_string, 1);
+
+ /* Other target-independent built-ins determined by command-line
+ options. */
+ if (optimize_size)
+ cpp_define (pfile, "__OPTIMIZE_SIZE__");
+ if (optimize)
+ cpp_define (pfile, "__OPTIMIZE__");
+
+ if (flag_hosted)
+ cpp_define (pfile, "__STDC_HOSTED__=1");
+ else
+ cpp_define (pfile, "__STDC_HOSTED__=0");
+
+ if (fast_math_flags_set_p ())
+ cpp_define (pfile, "__FAST_MATH__");
+ if (flag_no_inline)
+ cpp_define (pfile, "__NO_INLINE__");
+ if (flag_signaling_nans)
+ cpp_define (pfile, "__SUPPORT_SNAN__");
+ if (flag_finite_math_only)
+ cpp_define (pfile, "__FINITE_MATH_ONLY__=1");
+ else
+ cpp_define (pfile, "__FINITE_MATH_ONLY__=0");
- /* Mark as "unspecified" (see c_common_post_options). */
- flag_bounds_check = -1;
+ if (flag_iso)
+ cpp_define (pfile, "__STRICT_ANSI__");
+
+ if (!flag_signed_char)
+ cpp_define (pfile, "__CHAR_UNSIGNED__");
+
+ if (c_language == clk_cplusplus && TREE_UNSIGNED (wchar_type_node))
+ cpp_define (pfile, "__WCHAR_UNSIGNED__");
+
+ cpp_define_data_format (pfile);
+
+ /* Make the choice of ObjC runtime visible to source code. */
+ if (flag_objc && flag_next_runtime)
+ cpp_define (pfile, "__NEXT_RUNTIME__");
+
+ /* A straightforward target hook doesn't work, because of problems
+ linking that hook's body when part of non-C front ends. */
+# define preprocessing_asm_p() (cpp_get_options (pfile)->lang == CLK_ASM)
+# define builtin_define(TXT) cpp_define (pfile, TXT)
+# define builtin_assert(TXT) cpp_assert (pfile, TXT)
+ TARGET_CPU_CPP_BUILTINS ();
+ TARGET_OS_CPP_BUILTINS ();
}
-/* Post-switch processing. */
+/* Pass an object-like macro. If it doesn't lie in the user's
+ namespace, defines it unconditionally. Otherwise define a version
+ with two leading underscores, and another version with two leading
+ and trailing underscores, and define the original only if an ISO
+ standard was not nominated.
+
+ e.g. passing "unix" defines "__unix", "__unix__" and possibly
+ "unix". Passing "_mips" defines "__mips", "__mips__" and possibly
+ "_mips". */
void
-c_common_post_options ()
+builtin_define_std (macro)
+ const char *macro;
{
- cpp_post_options (parse_in);
+ size_t len = strlen (macro);
+ char *buff = alloca (len + 5);
+ char *p = buff + 2;
+ char *q = p + len;
- flag_inline_trees = 1;
+ /* prepend __ (or maybe just _) if in user's namespace. */
+ memcpy (p, macro, len + 1);
+ if (!( *p == '_' && (p[1] == '_' || ISUPPER (p[1]))))
+ {
+ if (*p != '_')
+ *--p = '_';
+ if (p[1] != '_')
+ *--p = '_';
+ }
+ cpp_define (parse_in, p);
- /* Use tree inlining if possible. Function instrumentation is only
- done in the RTL level, so we disable tree inlining. */
- if (! flag_instrument_function_entry_exit)
+ /* If it was in user's namespace... */
+ if (p != buff + 2)
{
- if (!flag_no_inline)
- flag_no_inline = 1;
- if (flag_inline_functions)
- {
- flag_inline_trees = 2;
- flag_inline_functions = 0;
- }
+ /* Define the macro with leading and following __. */
+ if (q[-1] != '_')
+ *q++ = '_';
+ if (q[-2] != '_')
+ *q++ = '_';
+ *q = '\0';
+ cpp_define (parse_in, p);
+
+ /* Finally, define the original macro if permitted. */
+ if (!flag_iso)
+ cpp_define (parse_in, macro);
}
+}
+
+/* Pass an object-like macro and a value to define it to. The third
+ parameter says whether or not to turn the value into a string
+ constant. */
+static void
+builtin_define_with_value (macro, expansion, is_str)
+ const char *macro;
+ const char *expansion;
+ int is_str;
+{
+ char *buf;
+ size_t mlen = strlen (macro);
+ size_t elen = strlen (expansion);
+ size_t extra = 2; /* space for an = and a NUL */
+
+ if (is_str)
+ extra += 2; /* space for two quote marks */
+
+ buf = alloca (mlen + elen + extra);
+ if (is_str)
+ sprintf (buf, "%s=\"%s\"", macro, expansion);
+ else
+ sprintf (buf, "%s=%s", macro, expansion);
- /* If still "unspecified", make it match -fbounded-pointers. */
- if (flag_bounds_check == -1)
- flag_bounds_check = flag_bounded_pointers;
-
- /* Special format checking options don't work without -Wformat; warn if
- they are used. */
- if (warn_format_y2k && !warn_format)
- warning ("-Wformat-y2k ignored without -Wformat");
- if (warn_format_extra_args && !warn_format)
- warning ("-Wformat-extra-args ignored without -Wformat");
- if (warn_format_nonliteral && !warn_format)
- warning ("-Wformat-nonliteral ignored without -Wformat");
- if (warn_format_security && !warn_format)
- warning ("-Wformat-security ignored without -Wformat");
- if (warn_missing_format_attribute && !warn_format)
- warning ("-Wmissing-format-attribute ignored without -Wformat");
+ cpp_define (parse_in, buf);
}
-/* Front end initialization common to C, ObjC and C++. */
-const char *
-c_common_init (filename)
- const char *filename;
+/* Pass an object-like macro and an integer value to define it to. */
+static void
+builtin_define_with_int_value (macro, value)
+ const char *macro;
+ HOST_WIDE_INT value;
{
- /* NULL is passed up to toplev.c and we exit quickly. */
- if (flag_preprocess_only)
- {
- cpp_preprocess_file (parse_in);
- return NULL;
- }
+ char *buf;
+ size_t mlen = strlen (macro);
+ size_t vlen = 18;
+ size_t extra = 2; /* space for = and NUL. */
- /* Do this before initializing pragmas, as then cpplib's hash table
- has been set up. */
- filename = init_c_lex (filename);
+ buf = alloca (mlen + vlen + extra);
+ memcpy (buf, macro, mlen);
+ buf[mlen] = '=';
+ sprintf (buf + mlen + 1, HOST_WIDE_INT_PRINT_DEC, value);
- init_pragma ();
+ cpp_define (parse_in, buf);
+}
- if (!c_attrs_initialized)
- c_init_attributes ();
+/* Pass an object-like macro a hexadecimal floating-point value. */
+static void
+builtin_define_with_hex_fp_value (macro, type, digits, hex_str, fp_suffix)
+ const char *macro;
+ tree type ATTRIBUTE_UNUSED;
+ int digits;
+ const char *hex_str;
+ const char *fp_suffix;
+{
+ REAL_VALUE_TYPE real;
+ char dec_str[64], buf[256];
+
+ /* Hex values are really cool and convenient, except that they're
+ not supported in strict ISO C90 mode. First, the "p-" sequence
+ is not valid as part of a preprocessor number. Second, we get a
+ pedwarn from the preprocessor, which has no context, so we can't
+ suppress the warning with __extension__.
+
+ So instead what we do is construct the number in hex (because
+ it's easy to get the exact correct value), parse it as a real,
+ then print it back out as decimal. */
- return filename;
+ real_from_string (&real, hex_str);
+ real_to_decimal (dec_str, &real, digits);
+
+ sprintf (buf, "%s=%s%s", macro, dec_str, fp_suffix);
+ cpp_define (parse_in, buf);
}
-/* Common finish hook for the C, ObjC and C++ front ends. */
-void
-c_common_finish ()
+/* Define MAX for TYPE based on the precision of the type, which is assumed
+ to be signed. IS_LONG is 1 for type "long" and 2 for "long long". */
+
+static void
+builtin_define_type_max (macro, type, is_long)
+ const char *macro;
+ tree type;
+ int is_long;
{
- cpp_finish (parse_in);
+ const char *value;
+ char *buf;
+ size_t mlen, vlen, extra;
+
+ /* Pre-rendering the values mean we don't have to futz with printing a
+ multi-word decimal value. There are also a very limited number of
+ precisions that we support, so it's really a waste of time. */
+ switch (TYPE_PRECISION (type))
+ {
+ case 8:
+ value = "127";
+ break;
+ case 16:
+ value = "32767";
+ break;
+ case 32:
+ value = "2147483647";
+ break;
+ case 64:
+ value = "9223372036854775807";
+ break;
+ case 128:
+ value = "170141183460469231731687303715884105727";
+ break;
+ default:
+ abort ();
+ }
+
+ mlen = strlen (macro);
+ vlen = strlen (value);
+ extra = 2 + is_long;
+ buf = alloca (mlen + vlen + extra);
- /* For performance, avoid tearing down cpplib's internal structures.
- Call cpp_errors () instead of cpp_destroy (). */
- errorcount += cpp_errors (parse_in);
+ sprintf (buf, "%s=%s%s", macro, value,
+ (is_long == 1 ? "L" : is_long == 2 ? "LL" : ""));
+
+ cpp_define (parse_in, buf);
}
static void
#undef DEF_ATTR_IDENT
#undef DEF_ATTR_TREE_LIST
#undef DEF_FN_ATTR
- ggc_add_tree_root (built_in_attributes, (int) ATTR_LAST);
c_attrs_initialized = true;
}
(mode, TREE_UNSIGNED (type))))
error ("no data type for mode `%s'", p);
else
- *node = typefm;
- /* No need to layout the type here. The caller should do this. */
+ {
+ /* If this is a vector, make sure we either have hardware
+ support, or we can emulate it. */
+ if ((GET_MODE_CLASS (mode) == MODE_VECTOR_INT
+ || GET_MODE_CLASS (mode) == MODE_VECTOR_FLOAT)
+ && !vector_mode_valid_p (mode))
+ {
+ error ("unable to emulate '%s'", GET_MODE_NAME (mode));
+ return NULL_TREE;
+ }
+
+ *node = typefm;
+ /* No need to layout the type here. The caller should do this. */
+ }
}
return NULL_TREE;
new_type = build_type_copy (new_type);
+ /* If this is a vector, make sure we either have hardware
+ support, or we can emulate it. */
+ if ((GET_MODE_CLASS (mode) == MODE_VECTOR_INT
+ || GET_MODE_CLASS (mode) == MODE_VECTOR_FLOAT)
+ && !vector_mode_valid_p (mode))
+ {
+ error ("unable to emulate '%s'", GET_MODE_NAME (mode));
+ return NULL_TREE;
+ }
+
/* Set the debug information here, because this is the only
place where we know the underlying type for a vector made
with vector_size. For debugging purposes we pretend a vector
return outer;
}
+
+/* Handle the "nonnull" attribute. */
+static tree
+handle_nonnull_attribute (node, name, args, flags, no_add_attrs)
+ tree *node;
+ tree name ATTRIBUTE_UNUSED;
+ tree args;
+ int flags ATTRIBUTE_UNUSED;
+ bool *no_add_attrs;
+{
+ tree type = *node;
+ unsigned HOST_WIDE_INT attr_arg_num;
+
+ /* If no arguments are specified, all pointer arguments should be
+ non-null. Veryify a full prototype is given so that the arguments
+ will have the correct types when we actually check them later. */
+ if (! args)
+ {
+ if (! TYPE_ARG_TYPES (type))
+ {
+ error ("nonnull attribute without arguments on a non-prototype");
+ *no_add_attrs = true;
+ }
+ return NULL_TREE;
+ }
+
+ /* Argument list specified. Verify that each argument number references
+ a pointer argument. */
+ for (attr_arg_num = 1; args; args = TREE_CHAIN (args))
+ {
+ tree argument;
+ unsigned HOST_WIDE_INT arg_num, ck_num;
+
+ if (! get_nonnull_operand (TREE_VALUE (args), &arg_num))
+ {
+ error ("nonnull argument has invalid operand number (arg %lu)",
+ (unsigned long) attr_arg_num);
+ *no_add_attrs = true;
+ return NULL_TREE;
+ }
+
+ argument = TYPE_ARG_TYPES (type);
+ if (argument)
+ {
+ for (ck_num = 1; ; ck_num++)
+ {
+ if (! argument || ck_num == arg_num)
+ break;
+ argument = TREE_CHAIN (argument);
+ }
+
+ if (! argument
+ || TREE_CODE (TREE_VALUE (argument)) == VOID_TYPE)
+ {
+ error ("nonnull argument with out-of-range operand number (arg %lu, operand %lu)",
+ (unsigned long) attr_arg_num, (unsigned long) arg_num);
+ *no_add_attrs = true;
+ return NULL_TREE;
+ }
+
+ if (TREE_CODE (TREE_VALUE (argument)) != POINTER_TYPE)
+ {
+ error ("nonnull argument references non-pointer operand (arg %lu, operand %lu)",
+ (unsigned long) attr_arg_num, (unsigned long) arg_num);
+ *no_add_attrs = true;
+ return NULL_TREE;
+ }
+ }
+ }
+
+ return NULL_TREE;
+}
+
+/* Check the argument list of a function call for null in argument slots
+ that are marked as requiring a non-null pointer argument. */
+
+static void
+check_function_nonnull (attrs, params)
+ tree attrs;
+ tree params;
+{
+ tree a, args, param;
+ int param_num;
+
+ for (a = attrs; a; a = TREE_CHAIN (a))
+ {
+ if (is_attribute_p ("nonnull", TREE_PURPOSE (a)))
+ {
+ args = TREE_VALUE (a);
+
+ /* Walk the argument list. If we encounter an argument number we
+ should check for non-null, do it. If the attribute has no args,
+ then every pointer argument is checked (in which case the check
+ for pointer type is done in check_nonnull_arg). */
+ for (param = params, param_num = 1; ;
+ param_num++, param = TREE_CHAIN (param))
+ {
+ if (! param)
+ break;
+ if (! args || nonnull_check_p (args, param_num))
+ check_function_arguments_recurse (check_nonnull_arg, NULL,
+ TREE_VALUE (param),
+ param_num);
+ }
+ }
+ }
+}
+
+/* Helper for check_function_nonnull; given a list of operands which
+ must be non-null in ARGS, determine if operand PARAM_NUM should be
+ checked. */
+
+static bool
+nonnull_check_p (args, param_num)
+ tree args;
+ unsigned HOST_WIDE_INT param_num;
+{
+ unsigned HOST_WIDE_INT arg_num;
+
+ for (; args; args = TREE_CHAIN (args))
+ {
+ if (! get_nonnull_operand (TREE_VALUE (args), &arg_num))
+ abort ();
+
+ if (arg_num == param_num)
+ return true;
+ }
+ return false;
+}
+
+/* Check that the function argument PARAM (which is operand number
+ PARAM_NUM) is non-null. This is called by check_function_nonnull
+ via check_function_arguments_recurse. */
+
+static void
+check_nonnull_arg (ctx, param, param_num)
+ void *ctx ATTRIBUTE_UNUSED;
+ tree param;
+ unsigned HOST_WIDE_INT param_num;
+{
+ /* Just skip checking the argument if it's not a pointer. This can
+ happen if the "nonnull" attribute was given without an operand
+ list (which means to check every pointer argument). */
+
+ if (TREE_CODE (TREE_TYPE (param)) != POINTER_TYPE)
+ return;
+
+ if (integer_zerop (param))
+ warning ("null argument where non-null required (arg %lu)",
+ (unsigned long) param_num);
+}
+
+/* Helper for nonnull attribute handling; fetch the operand number
+ from the attribute argument list. */
+
+static bool
+get_nonnull_operand (arg_num_expr, valp)
+ tree arg_num_expr;
+ unsigned HOST_WIDE_INT *valp;
+{
+ /* Strip any conversions from the arg number and verify they
+ are constants. */
+ while (TREE_CODE (arg_num_expr) == NOP_EXPR
+ || TREE_CODE (arg_num_expr) == CONVERT_EXPR
+ || TREE_CODE (arg_num_expr) == NON_LVALUE_EXPR)
+ arg_num_expr = TREE_OPERAND (arg_num_expr, 0);
+
+ if (TREE_CODE (arg_num_expr) != INTEGER_CST
+ || TREE_INT_CST_HIGH (arg_num_expr) != 0)
+ return false;
+
+ *valp = TREE_INT_CST_LOW (arg_num_expr);
+ return true;
+}
+
+/* Handle a "nothrow" attribute; arguments as in
+ struct attribute_spec.handler. */
+
+static tree
+handle_nothrow_attribute (node, name, args, flags, no_add_attrs)
+ tree *node;
+ tree name;
+ tree args ATTRIBUTE_UNUSED;
+ int flags ATTRIBUTE_UNUSED;
+ bool *no_add_attrs;
+{
+ if (TREE_CODE (*node) == FUNCTION_DECL)
+ TREE_NOTHROW (*node) = 1;
+ /* ??? TODO: Support types. */
+ else
+ {
+ warning ("`%s' attribute ignored", IDENTIFIER_POINTER (name));
+ *no_add_attrs = true;
+ }
+
+ return NULL_TREE;
+}
+\f
+/* Check for valid arguments being passed to a function. */
+void
+check_function_arguments (attrs, params)
+ tree attrs;
+ tree params;
+{
+ /* Check for null being passed in a pointer argument that must be
+ non-null. We also need to do this if format checking is enabled. */
+
+ if (warn_nonnull)
+ check_function_nonnull (attrs, params);
+
+ /* Check for errors in format strings. */
+
+ if (warn_format)
+ check_function_format (NULL, attrs, params);
+}
+
+/* Generic argument checking recursion routine. PARAM is the argument to
+ be checked. PARAM_NUM is the number of the argument. CALLBACK is invoked
+ once the argument is resolved. CTX is context for the callback. */
+void
+check_function_arguments_recurse (callback, ctx, param, param_num)
+ void (*callback) PARAMS ((void *, tree, unsigned HOST_WIDE_INT));
+ void *ctx;
+ tree param;
+ unsigned HOST_WIDE_INT param_num;
+{
+ if (TREE_CODE (param) == NOP_EXPR)
+ {
+ /* Strip coercion. */
+ check_function_arguments_recurse (callback, ctx,
+ TREE_OPERAND (param, 0), param_num);
+ return;
+ }
+
+ if (TREE_CODE (param) == CALL_EXPR)
+ {
+ tree type = TREE_TYPE (TREE_TYPE (TREE_OPERAND (param, 0)));
+ tree attrs;
+ bool found_format_arg = false;
+
+ /* See if this is a call to a known internationalization function
+ that modifies a format arg. Such a function may have multiple
+ format_arg attributes (for example, ngettext). */
+
+ for (attrs = TYPE_ATTRIBUTES (type);
+ attrs;
+ attrs = TREE_CHAIN (attrs))
+ if (is_attribute_p ("format_arg", TREE_PURPOSE (attrs)))
+ {
+ tree inner_args;
+ tree format_num_expr;
+ int format_num;
+ int i;
+
+ /* Extract the argument number, which was previously checked
+ to be valid. */
+ format_num_expr = TREE_VALUE (TREE_VALUE (attrs));
+ while (TREE_CODE (format_num_expr) == NOP_EXPR
+ || TREE_CODE (format_num_expr) == CONVERT_EXPR
+ || TREE_CODE (format_num_expr) == NON_LVALUE_EXPR)
+ format_num_expr = TREE_OPERAND (format_num_expr, 0);
+
+ if (TREE_CODE (format_num_expr) != INTEGER_CST
+ || TREE_INT_CST_HIGH (format_num_expr) != 0)
+ abort ();
+
+ format_num = TREE_INT_CST_LOW (format_num_expr);
+
+ for (inner_args = TREE_OPERAND (param, 1), i = 1;
+ inner_args != 0;
+ inner_args = TREE_CHAIN (inner_args), i++)
+ if (i == format_num)
+ {
+ check_function_arguments_recurse (callback, ctx,
+ TREE_VALUE (inner_args),
+ param_num);
+ found_format_arg = true;
+ break;
+ }
+ }
+
+ /* If we found a format_arg attribute and did a recursive check,
+ we are done with checking this argument. Otherwise, we continue
+ and this will be considered a non-literal. */
+ if (found_format_arg)
+ return;
+ }
+
+ if (TREE_CODE (param) == COND_EXPR)
+ {
+ /* Check both halves of the conditional expression. */
+ check_function_arguments_recurse (callback, ctx,
+ TREE_OPERAND (param, 1), param_num);
+ check_function_arguments_recurse (callback, ctx,
+ TREE_OPERAND (param, 2), param_num);
+ return;
+ }
+
+ (*callback) (ctx, param, param_num);
+}
+
+#include "gt-c-common.h"
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