1 /* d-builtins.cc -- GCC builtins support for D.
2 Copyright (C) 2006-2020 Free Software Foundation, Inc.
4 GCC is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3, or (at your option)
9 GCC is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with GCC; see the file COPYING3. If not see
16 <http://www.gnu.org/licenses/>. */
20 #include "coretypes.h"
22 #include "dmd/attrib.h"
23 #include "dmd/aggregate.h"
25 #include "dmd/declaration.h"
26 #include "dmd/expression.h"
27 #include "dmd/identifier.h"
28 #include "dmd/module.h"
29 #include "dmd/mtype.h"
32 #include "fold-const.h"
33 #include "diagnostic.h"
34 #include "langhooks.h"
36 #include "common/common-target.h"
37 #include "stringpool.h"
38 #include "stor-layout.h"
44 static GTY(()) vec
<tree
, va_gc
> *gcc_builtins_functions
= NULL
;
45 static GTY(()) vec
<tree
, va_gc
> *gcc_builtins_libfuncs
= NULL
;
46 static GTY(()) vec
<tree
, va_gc
> *gcc_builtins_types
= NULL
;
48 /* Record built-in types and their associated decls for re-use when
49 generating the `gcc.builtins' module. */
57 builtin_data (Type
*t
, tree c
, Dsymbol
*d
= NULL
)
58 : dtype(t
), ctype(c
), dsym(d
)
62 static vec
<builtin_data
> builtin_converted_decls
;
64 /* Build D frontend type from tree TYPE type given. This will set the
65 back-end type symbol directly for complex types to save build_ctype()
66 the work. For other types, it is not useful or will cause errors, such
67 as casting from `C char' to `D char', which also means that `char *`
68 needs to be specially handled. */
71 build_frontend_type (tree type
)
76 if (TYPE_READONLY (type
))
78 if (TYPE_VOLATILE (type
))
81 /* If we've seen the type before, re-use the converted decl. */
82 for (size_t i
= 0; i
< builtin_converted_decls
.length (); ++i
)
84 tree t
= builtin_converted_decls
[i
].ctype
;
85 if (TYPE_MAIN_VARIANT (t
) == TYPE_MAIN_VARIANT (type
))
86 return builtin_converted_decls
[i
].dtype
;
89 switch (TREE_CODE (type
))
92 dtype
= build_frontend_type (TREE_TYPE (type
));
95 /* Check for char * first. Needs to be done for chars/string. */
96 if (TYPE_MAIN_VARIANT (TREE_TYPE (type
)) == char_type_node
)
97 return Type::tchar
->addMod (dtype
->mod
)->pointerTo ()->addMod (mod
);
99 if (dtype
->ty
== Tfunction
)
100 return (TypePointer::create (dtype
))->addMod (mod
);
102 return dtype
->pointerTo ()->addMod (mod
);
107 dtype
= build_frontend_type (TREE_TYPE (type
));
110 /* Want to assign ctype directly so that the REFERENCE_TYPE code
111 can be turned into as an `inout' argument. Can't use pointerTo(),
112 because the returned Type is shared. */
113 dtype
= (TypePointer::create (dtype
))->addMod (mod
);
115 builtin_converted_decls
.safe_push (builtin_data (dtype
, type
));
121 /* Should be no need for size checking. */
122 return Type::tbool
->addMod (mod
);
126 unsigned size
= TREE_INT_CST_LOW (TYPE_SIZE_UNIT (type
));
127 bool unsignedp
= TYPE_UNSIGNED (type
);
129 /* For now, skip support for cent/ucent until the frontend
130 has better support for handling it. */
131 for (size_t i
= Tint8
; i
<= Tuns64
; i
++)
133 dtype
= Type::basic
[i
];
135 /* Search for type matching size and signedness. */
136 if (unsignedp
!= dtype
->isunsigned ()
137 || size
!= dtype
->size ())
140 return dtype
->addMod (mod
);
147 unsigned size
= TREE_INT_CST_LOW (TYPE_SIZE_UNIT (type
));
149 for (size_t i
= Tfloat32
; i
<= Tfloat80
; i
++)
151 dtype
= Type::basic
[i
];
153 /* Search for type matching size. */
154 if (dtype
->size () != size
)
157 return dtype
->addMod (mod
);
164 unsigned size
= TREE_INT_CST_LOW (TYPE_SIZE_UNIT (type
));
165 for (size_t i
= Tcomplex32
; i
<= Tcomplex80
; i
++)
167 dtype
= Type::basic
[i
];
169 /* Search for type matching size. */
170 if (dtype
->size () != size
)
173 return dtype
->addMod (mod
);
179 return Type::tvoid
->addMod (mod
);
182 dtype
= build_frontend_type (TREE_TYPE (type
));
185 tree index
= TYPE_DOMAIN (type
);
186 tree ub
= TYPE_MAX_VALUE (index
);
187 tree lb
= TYPE_MIN_VALUE (index
);
189 tree length
= fold_build2 (MINUS_EXPR
, TREE_TYPE (lb
), ub
, lb
);
190 length
= size_binop (PLUS_EXPR
, size_one_node
,
191 convert (sizetype
, length
));
193 dtype
= dtype
->sarrayOf (TREE_INT_CST_LOW (length
))->addMod (mod
);
194 builtin_converted_decls
.safe_push (builtin_data (dtype
, type
));
201 unsigned HOST_WIDE_INT nunits
;
202 if (!TYPE_VECTOR_SUBPARTS (type
).is_constant (&nunits
))
205 dtype
= build_frontend_type (TREE_TYPE (type
));
209 dtype
= dtype
->sarrayOf (nunits
)->addMod (mod
);
210 if (dtype
->nextOf ()->isTypeBasic () == NULL
)
213 dtype
= (TypeVector::create (Loc (), dtype
))->addMod (mod
);
214 builtin_converted_decls
.safe_push (builtin_data (dtype
, type
));
220 Identifier
*ident
= TYPE_IDENTIFIER (type
) ?
221 Identifier::idPool (IDENTIFIER_POINTER (TYPE_IDENTIFIER (type
))) : NULL
;
223 /* Neither the `object' and `gcc.builtins' modules will not exist when
224 this is called. Use a stub 'object' module parent in the meantime.
225 If `gcc.builtins' is later imported, the parent will be overridden
226 with the correct module symbol. */
227 static Identifier
*object
= Identifier::idPool ("object");
228 static Module
*stubmod
= Module::create ("object.d", object
, 0, 0);
230 StructDeclaration
*sdecl
= StructDeclaration::create (Loc (), ident
,
232 sdecl
->parent
= stubmod
;
233 sdecl
->structsize
= int_size_in_bytes (type
);
234 sdecl
->alignsize
= TYPE_ALIGN_UNIT (type
);
235 sdecl
->alignment
= STRUCTALIGN_DEFAULT
;
236 sdecl
->sizeok
= SIZEOKdone
;
237 sdecl
->type
= (TypeStruct::create (sdecl
))->addMod (mod
);
238 sdecl
->type
->ctype
= type
;
239 sdecl
->type
->merge2 ();
241 sdecl
->members
= new Dsymbols
;
243 for (tree field
= TYPE_FIELDS (type
); field
; field
= DECL_CHAIN (field
))
245 Type
*ftype
= build_frontend_type (TREE_TYPE (field
));
248 delete sdecl
->members
;
253 = Identifier::idPool (IDENTIFIER_POINTER (DECL_NAME (field
)));
254 VarDeclaration
*vd
= VarDeclaration::create (Loc (), ftype
, fident
,
257 vd
->offset
= tree_to_uhwi (DECL_FIELD_OFFSET (field
));
258 vd
->semanticRun
= PASSsemanticdone
;
260 sdecl
->members
->push (vd
);
261 sdecl
->fields
.push (vd
);
265 builtin_converted_decls
.safe_push (builtin_data (dtype
, type
, sdecl
));
270 dtype
= build_frontend_type (TREE_TYPE (type
));
273 tree parms
= TYPE_ARG_TYPES (type
);
276 Parameters
*args
= new Parameters
;
277 args
->reserve (list_length (parms
));
279 /* Attempt to convert all parameter types. */
280 for (tree parm
= parms
; parm
!= NULL_TREE
; parm
= TREE_CHAIN (parm
))
282 tree argtype
= TREE_VALUE (parm
);
283 if (argtype
== void_type_node
)
289 StorageClass sc
= STCundefined
;
290 if (TREE_CODE (argtype
) == REFERENCE_TYPE
)
292 argtype
= TREE_TYPE (argtype
);
296 Type
*targ
= build_frontend_type (argtype
);
303 args
->push (Parameter::create (sc
, targ
, NULL
, NULL
));
306 /* GCC generic and placeholder built-ins are marked as variadic, yet
307 have no named parameters, and so can't be represented in D. */
308 if (args
->dim
!= 0 || !varargs_p
)
310 dtype
= TypeFunction::create (args
, dtype
, varargs_p
, LINKc
);
311 return dtype
->addMod (mod
);
323 /* Attempt to convert GCC evaluated CST to a D Frontend Expression.
324 This is used for getting the CTFE value out of a const-folded builtin,
325 returns NULL if it cannot convert CST. */
328 d_eval_constant_expression (tree cst
)
330 STRIP_TYPE_NOPS (cst
);
331 Type
*type
= build_frontend_type (TREE_TYPE (cst
));
335 /* Convert our GCC CST tree into a D Expression. This seems like we are
336 trying too hard, as these will only be converted back to a tree again
337 later in the codegen pass, but satisfies the need to have GCC built-ins
338 CTFE-able in the frontend. */
339 tree_code code
= TREE_CODE (cst
);
340 if (code
== COMPLEX_CST
)
342 real_value re
= TREE_REAL_CST (TREE_REALPART (cst
));
343 real_value im
= TREE_REAL_CST (TREE_IMAGPART (cst
));
344 complex_t value
= complex_t (ldouble (re
), ldouble (im
));
345 return ComplexExp::create (Loc (), value
, type
);
347 else if (code
== INTEGER_CST
)
349 dinteger_t value
= TREE_INT_CST_LOW (cst
);
350 return IntegerExp::create (Loc (), value
, type
);
352 else if (code
== REAL_CST
)
354 real_value value
= TREE_REAL_CST (cst
);
355 return RealExp::create (Loc (), ldouble (value
), type
);
357 else if (code
== STRING_CST
)
359 const void *string
= TREE_STRING_POINTER (cst
);
360 size_t len
= TREE_STRING_LENGTH (cst
);
361 return StringExp::create (Loc (), CONST_CAST (void *, string
), len
);
363 else if (code
== VECTOR_CST
)
365 dinteger_t nunits
= VECTOR_CST_NELTS (cst
).to_constant ();
366 Expressions
*elements
= new Expressions
;
367 elements
->setDim (nunits
);
369 for (size_t i
= 0; i
< nunits
; i
++)
372 = d_eval_constant_expression (VECTOR_CST_ELT (cst
, i
));
376 (*elements
)[i
] = elem
;
379 Expression
*e
= ArrayLiteralExp::create (Loc (), elements
);
380 e
->type
= ((TypeVector
*) type
)->basetype
;
382 return VectorExp::create (Loc (), e
, type
);
389 /* Callback for TARGET_D_CPU_VERSIONS and TARGET_D_OS_VERSIONS.
390 Adds IDENT to the list of predefined version identifiers. */
393 d_add_builtin_version (const char* ident
)
395 /* For now, we need to tell the D frontend what platform is being targeted.
396 This should be removed once the frontend has been fixed. */
397 if (strcmp (ident
, "linux") == 0)
398 global
.params
.isLinux
= true;
399 else if (strcmp (ident
, "OSX") == 0)
400 global
.params
.isOSX
= true;
401 else if (strcmp (ident
, "Windows") == 0)
402 global
.params
.isWindows
= true;
403 else if (strcmp (ident
, "FreeBSD") == 0)
404 global
.params
.isFreeBSD
= true;
405 else if (strcmp (ident
, "OpenBSD") == 0)
406 global
.params
.isOpenBSD
= true;
407 else if (strcmp (ident
, "Solaris") == 0)
408 global
.params
.isSolaris
= true;
409 /* The is64bit field only refers to x86_64 target. */
410 else if (strcmp (ident
, "X86_64") == 0)
411 global
.params
.is64bit
= true;
412 /* No other fields are required to be set for the frontend. */
414 VersionCondition::addPredefinedGlobalIdent (ident
);
417 /* Initialize the list of all the predefined version identifiers. */
420 d_init_versions (void)
422 VersionCondition::addPredefinedGlobalIdent ("GNU");
423 VersionCondition::addPredefinedGlobalIdent ("D_Version2");
425 if (BYTES_BIG_ENDIAN
)
426 VersionCondition::addPredefinedGlobalIdent ("BigEndian");
428 VersionCondition::addPredefinedGlobalIdent ("LittleEndian");
430 if (targetm_common
.except_unwind_info (&global_options
) == UI_SJLJ
)
431 VersionCondition::addPredefinedGlobalIdent ("GNU_SjLj_Exceptions");
432 else if (targetm_common
.except_unwind_info (&global_options
) == UI_SEH
)
433 VersionCondition::addPredefinedGlobalIdent ("GNU_SEH_Exceptions");
434 else if (targetm_common
.except_unwind_info (&global_options
) == UI_DWARF2
)
435 VersionCondition::addPredefinedGlobalIdent ("GNU_DWARF2_Exceptions");
437 if (!targetm
.have_tls
)
438 VersionCondition::addPredefinedGlobalIdent ("GNU_EMUTLS");
440 if (STACK_GROWS_DOWNWARD
)
441 VersionCondition::addPredefinedGlobalIdent ("GNU_StackGrowsDown");
443 /* Should define this anyway to set us apart from the competition. */
444 VersionCondition::addPredefinedGlobalIdent ("GNU_InlineAsm");
446 /* LP64 only means 64bit pointers in D. */
447 if (global
.params
.isLP64
)
448 VersionCondition::addPredefinedGlobalIdent ("D_LP64");
450 /* Setting `global.params.cov' forces module info generation which is
451 not needed for the GCC coverage implementation. Instead, just
452 test flag_test_coverage while leaving `global.params.cov' unset. */
453 if (flag_test_coverage
)
454 VersionCondition::addPredefinedGlobalIdent ("D_Coverage");
456 VersionCondition::addPredefinedGlobalIdent ("D_PIC");
458 if (global
.params
.doDocComments
)
459 VersionCondition::addPredefinedGlobalIdent ("D_Ddoc");
461 if (global
.params
.useUnitTests
)
462 VersionCondition::addPredefinedGlobalIdent ("unittest");
464 if (global
.params
.useAssert
)
465 VersionCondition::addPredefinedGlobalIdent ("assert");
467 if (global
.params
.useArrayBounds
== BOUNDSCHECKoff
)
468 VersionCondition::addPredefinedGlobalIdent ("D_NoBoundsChecks");
470 if (global
.params
.betterC
)
471 VersionCondition::addPredefinedGlobalIdent ("D_BetterC");
474 VersionCondition::addPredefinedGlobalIdent ("D_ModuleInfo");
475 VersionCondition::addPredefinedGlobalIdent ("D_Exceptions");
476 VersionCondition::addPredefinedGlobalIdent ("D_TypeInfo");
479 VersionCondition::addPredefinedGlobalIdent ("all");
481 /* Emit all target-specific version identifiers. */
482 targetdm
.d_cpu_versions ();
483 targetdm
.d_os_versions ();
485 VersionCondition::addPredefinedGlobalIdent ("CppRuntime_Gcc");
488 /* A helper for d_build_builtins_module. Return a new ALIAS for TYPE.
489 Analogous to `alias ALIAS = TYPE' in D code. */
491 static AliasDeclaration
*
492 build_alias_declaration (const char *alias
, Type
*type
)
494 return AliasDeclaration::create (Loc (), Identifier::idPool (alias
), type
);
497 /* A helper function for Target::loadModule. Generates all code for the
498 `gcc.builtins' module, whose frontend symbol should be M. */
501 d_build_builtins_module (Module
*m
)
503 Dsymbols
*members
= new Dsymbols
;
506 for (size_t i
= 0; vec_safe_iterate (gcc_builtins_functions
, i
, &decl
); ++i
)
508 const char *name
= IDENTIFIER_POINTER (DECL_NAME (decl
));
510 = (TypeFunction
*) build_frontend_type (TREE_TYPE (decl
));
512 /* Cannot create built-in function type for DECL. */
516 /* A few notes on D2 attributes applied to builtin functions:
517 - It is assumed that built-ins solely provided by the compiler are
518 considered @safe and pure.
519 - Built-ins that correspond to `extern(C)' functions in the standard
520 library that have `__attribute__(nothrow)' are considered `@trusted'.
521 - The purity of a built-in can vary depending on compiler flags set
522 upon initialization, or by the `-foptions' passed, such as
523 flag_unsafe_math_optimizations.
524 - Built-ins never use the GC or raise a D exception, and so are always
525 marked as `nothrow' and `@nogc'. */
526 tf
->purity
= DECL_PURE_P (decl
) ? PUREstrong
527 : TREE_READONLY (decl
) ? PUREconst
528 : DECL_IS_NOVOPS (decl
) ? PUREweak
529 : !DECL_ASSEMBLER_NAME_SET_P (decl
) ? PUREweak
531 tf
->trust
= !DECL_ASSEMBLER_NAME_SET_P (decl
) ? TRUSTsafe
532 : TREE_NOTHROW (decl
) ? TRUSTtrusted
534 tf
->isnothrow
= true;
537 FuncDeclaration
*func
538 = FuncDeclaration::create (Loc (), Loc (),
539 Identifier::idPool (name
),
541 DECL_LANG_SPECIFIC (decl
) = build_lang_decl (func
);
543 func
->builtin
= BUILTINyes
;
545 members
->push (func
);
548 for (size_t i
= 0; vec_safe_iterate (gcc_builtins_types
, i
, &decl
); ++i
)
550 const char *name
= IDENTIFIER_POINTER (DECL_NAME (decl
));
551 Type
*t
= build_frontend_type (TREE_TYPE (decl
));
553 /* Cannot create built-in type for DECL. */
557 members
->push (build_alias_declaration (name
, t
));
560 /* Iterate through the target-specific builtin types for va_list. */
561 if (targetm
.enum_va_list_p
)
566 for (int i
= 0; targetm
.enum_va_list_p (i
, &name
, &type
); ++i
)
568 Type
*t
= build_frontend_type (type
);
569 /* Cannot create built-in type. */
573 members
->push (build_alias_declaration (name
, t
));
577 /* Push out declarations for any RECORD_TYPE types encountered when building
578 all builtin functions and types. */
579 for (size_t i
= 0; i
< builtin_converted_decls
.length (); ++i
)
581 /* Currently, there is no need to run semantic, but we do want to output
582 initializers, typeinfo, and others on demand. */
583 Dsymbol
*dsym
= builtin_converted_decls
[i
].dsym
;
584 if (dsym
!= NULL
&& !dsym
->isAnonymous ())
587 members
->push (dsym
);
591 /* va_list should already be built, so no need to convert to D type again. */
592 StructDeclaration
*sd
= (Type::tvalist
->ty
== Tstruct
)
593 ? ((TypeStruct
*) Type::tvalist
)->sym
: NULL
;
594 if (sd
== NULL
|| !sd
->isAnonymous ())
596 members
->push (build_alias_declaration ("__builtin_va_list",
601 sd
->ident
= Identifier::idPool ("__builtin_va_list");
605 /* Expose target-specific integer types to the builtins module. */
607 Type
*t
= build_frontend_type (long_integer_type_node
);
608 members
->push (build_alias_declaration ("__builtin_clong", t
));
610 t
= build_frontend_type (long_unsigned_type_node
);
611 members
->push (build_alias_declaration ("__builtin_culong", t
));
613 t
= build_frontend_type (long_long_integer_type_node
);
614 members
->push (build_alias_declaration ("__builtin_clonglong", t
));
616 t
= build_frontend_type (long_long_unsigned_type_node
);
617 members
->push (build_alias_declaration ("__builtin_culonglong", t
));
619 t
= build_frontend_type (lang_hooks
.types
.type_for_mode (byte_mode
, 0));
620 members
->push (build_alias_declaration ("__builtin_machine_byte", t
));
622 t
= build_frontend_type (lang_hooks
.types
.type_for_mode (byte_mode
, 1));
623 members
->push (build_alias_declaration ("__builtin_machine_ubyte", t
));
625 t
= build_frontend_type (lang_hooks
.types
.type_for_mode (word_mode
, 0));
626 members
->push (build_alias_declaration ("__builtin_machine_int", t
));
628 t
= build_frontend_type (lang_hooks
.types
.type_for_mode (word_mode
, 1));
629 members
->push (build_alias_declaration ("__builtin_machine_uint", t
));
631 t
= build_frontend_type (lang_hooks
.types
.type_for_mode (ptr_mode
, 0));
632 members
->push (build_alias_declaration ("__builtin_pointer_int", t
));
634 t
= build_frontend_type (lang_hooks
.types
.type_for_mode (ptr_mode
, 1));
635 members
->push (build_alias_declaration ("__builtin_pointer_uint", t
));
637 /* _Unwind_Word has its own target specific mode. */
638 machine_mode mode
= targetm
.unwind_word_mode ();
639 t
= build_frontend_type (lang_hooks
.types
.type_for_mode (mode
, 0));
640 members
->push (build_alias_declaration ("__builtin_unwind_int", t
));
642 t
= build_frontend_type (lang_hooks
.types
.type_for_mode (mode
, 1));
643 members
->push (build_alias_declaration ("__builtin_unwind_uint", t
));
646 m
->members
->push (LinkDeclaration::create (LINKc
, members
));
649 /* Search for any `extern(C)' functions that match any known GCC library builtin
650 function in D and override its internal back-end symbol. */
653 maybe_set_builtin_1 (Dsymbol
*d
)
655 AttribDeclaration
*ad
= d
->isAttribDeclaration ();
656 FuncDeclaration
*fd
= d
->isFuncDeclaration ();
660 /* Recursively search through attribute decls. */
661 Dsymbols
*decls
= ad
->include (NULL
, NULL
);
662 if (decls
&& decls
->dim
)
664 for (size_t i
= 0; i
< decls
->dim
; i
++)
666 Dsymbol
*sym
= (*decls
)[i
];
667 maybe_set_builtin_1 (sym
);
671 else if (fd
&& !fd
->fbody
)
675 for (size_t i
= 0; vec_safe_iterate (gcc_builtins_libfuncs
, i
, &t
); ++i
)
677 gcc_assert (DECL_ASSEMBLER_NAME_SET_P (t
));
679 const char *name
= IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (t
));
680 if (fd
->ident
!= Identifier::idPool (name
))
683 /* Found a match, tell the frontend this is a builtin. */
684 DECL_LANG_SPECIFIC (t
) = build_lang_decl (fd
);
686 fd
->builtin
= BUILTINyes
;
692 /* A helper function for Target::loadModule. Traverse all members in module M
693 to search for any functions that can be mapped to any GCC builtin. */
696 d_maybe_set_builtin (Module
*m
)
698 if (!m
|| !m
->members
)
701 for (size_t i
= 0; i
< m
->members
->dim
; i
++)
703 Dsymbol
*sym
= (*m
->members
)[i
];
704 maybe_set_builtin_1 (sym
);
708 /* Used to help initialize the builtin-types.def table. When a type of
709 the correct size doesn't exist, use error_mark_node instead of NULL.
710 The latter results in segfaults even when a decl using the type doesn't
714 builtin_type_for_size (int size
, bool unsignedp
)
716 tree type
= lang_hooks
.types
.type_for_size (size
, unsignedp
);
717 return type
? type
: error_mark_node
;
720 /* Support for DEF_BUILTIN. */
723 do_build_builtin_fn (built_in_function fncode
,
725 built_in_class fnclass
,
726 tree fntype
, bool both_p
, bool fallback_p
,
727 tree fnattrs
, bool implicit_p
)
732 if (fntype
== error_mark_node
)
735 gcc_assert ((!both_p
&& !fallback_p
)
736 || !strncmp (name
, "__builtin_",
737 strlen ("__builtin_")));
739 libname
= name
+ strlen ("__builtin_");
741 decl
= add_builtin_function (name
, fntype
, fncode
, fnclass
,
742 fallback_p
? libname
: NULL
, fnattrs
);
744 set_builtin_decl (fncode
, decl
, implicit_p
);
747 /* Standard data types to be used in builtin argument declarations. */
749 static GTY(()) tree string_type_node
;
750 static GTY(()) tree const_string_type_node
;
751 static GTY(()) tree wint_type_node
;
752 static GTY(()) tree intmax_type_node
;
753 static GTY(()) tree uintmax_type_node
;
754 static GTY(()) tree signed_size_type_node
;
757 /* Build nodes that would have been created by the C front-end; necessary
758 for including builtin-types.def and ultimately builtins.def. */
761 d_build_c_type_nodes (void)
763 void_list_node
= build_tree_list (NULL_TREE
, void_type_node
);
764 string_type_node
= build_pointer_type (char_type_node
);
765 const_string_type_node
766 = build_pointer_type (build_qualified_type (char_type_node
,
769 if (strcmp (UINTMAX_TYPE
, "unsigned int") == 0)
771 intmax_type_node
= integer_type_node
;
772 uintmax_type_node
= unsigned_type_node
;
774 else if (strcmp (UINTMAX_TYPE
, "long unsigned int") == 0)
776 intmax_type_node
= long_integer_type_node
;
777 uintmax_type_node
= long_unsigned_type_node
;
779 else if (strcmp (UINTMAX_TYPE
, "long long unsigned int") == 0)
781 intmax_type_node
= long_long_integer_type_node
;
782 uintmax_type_node
= long_long_unsigned_type_node
;
787 signed_size_type_node
= signed_type_for (size_type_node
);
788 wint_type_node
= unsigned_type_node
;
789 pid_type_node
= integer_type_node
;
792 /* Build nodes that are used by the D front-end.
793 These are distinct from C types. */
796 d_build_d_type_nodes (void)
798 /* Integral types. */
799 d_byte_type
= make_signed_type (8);
800 d_ubyte_type
= make_unsigned_type (8);
802 d_short_type
= make_signed_type (16);
803 d_ushort_type
= make_unsigned_type (16);
805 d_int_type
= make_signed_type (32);
806 d_uint_type
= make_unsigned_type (32);
808 d_long_type
= make_signed_type (64);
809 d_ulong_type
= make_unsigned_type (64);
811 d_cent_type
= make_signed_type (128);
812 d_ucent_type
= make_unsigned_type (128);
815 /* Re-define size_t as a D type. */
816 machine_mode type_mode
= TYPE_MODE (size_type_node
);
817 size_type_node
= lang_hooks
.types
.type_for_mode (type_mode
, 1);
820 /* Bool and Character types. */
821 d_bool_type
= make_unsigned_type (1);
822 TREE_SET_CODE (d_bool_type
, BOOLEAN_TYPE
);
824 char8_type_node
= make_unsigned_type (8);
825 TYPE_STRING_FLAG (char8_type_node
) = 1;
827 char16_type_node
= make_unsigned_type (16);
828 TYPE_STRING_FLAG (char16_type_node
) = 1;
830 char32_type_node
= make_unsigned_type (32);
831 TYPE_STRING_FLAG (char32_type_node
) = 1;
833 /* Imaginary types. */
834 ifloat_type_node
= build_distinct_type_copy (float_type_node
);
835 TYPE_IMAGINARY_FLOAT (ifloat_type_node
) = 1;
837 idouble_type_node
= build_distinct_type_copy (double_type_node
);
838 TYPE_IMAGINARY_FLOAT (idouble_type_node
) = 1;
840 ireal_type_node
= build_distinct_type_copy (long_double_type_node
);
841 TYPE_IMAGINARY_FLOAT (ireal_type_node
) = 1;
843 /* Used for ModuleInfo, ClassInfo, and Interface decls. */
844 unknown_type_node
= make_node (RECORD_TYPE
);
846 /* Make sure we get a unique function type, so we can give
847 its pointer type a name. (This wins for gdb). */
849 tree vfunc_type
= make_node (FUNCTION_TYPE
);
850 TREE_TYPE (vfunc_type
) = d_int_type
;
851 TYPE_ARG_TYPES (vfunc_type
) = NULL_TREE
;
852 layout_type (vfunc_type
);
854 vtable_entry_type
= build_pointer_type (vfunc_type
);
857 vtbl_ptr_type_node
= build_pointer_type (vtable_entry_type
);
858 layout_type (vtbl_ptr_type_node
);
860 /* When an object is accessed via an interface, this type appears
861 as the first entry in its vtable. */
863 tree domain
= build_index_type (size_int (3));
864 vtbl_interface_type_node
= build_array_type (ptr_type_node
, domain
);
867 /* Use `void[]' as a generic dynamic array type. */
868 array_type_node
= make_struct_type ("__builtin_void[]", 2,
869 get_identifier ("length"), size_type_node
,
870 get_identifier ("ptr"), ptr_type_node
);
871 TYPE_DYNAMIC_ARRAY (array_type_node
) = 1;
873 null_array_node
= d_array_value (array_type_node
, size_zero_node
,
877 /* Handle default attributes. */
879 enum built_in_attribute
881 #define DEF_ATTR_NULL_TREE(ENUM) ENUM,
882 #define DEF_ATTR_INT(ENUM, VALUE) ENUM,
883 #define DEF_ATTR_STRING(ENUM, VALUE) ENUM,
884 #define DEF_ATTR_IDENT(ENUM, STRING) ENUM,
885 #define DEF_ATTR_TREE_LIST(ENUM, PURPOSE, VALUE, CHAIN) ENUM,
886 #include "builtin-attrs.def"
887 #undef DEF_ATTR_NULL_TREE
889 #undef DEF_ATTR_STRING
890 #undef DEF_ATTR_IDENT
891 #undef DEF_ATTR_TREE_LIST
895 static GTY(()) tree built_in_attributes
[(int) ATTR_LAST
];
897 /* Initialize the attribute table for all the supported builtins. */
900 d_init_attributes (void)
902 /* Fill in the built_in_attributes array. */
903 #define DEF_ATTR_NULL_TREE(ENUM) \
904 built_in_attributes[(int) ENUM] = NULL_TREE;
905 # define DEF_ATTR_INT(ENUM, VALUE) \
906 built_in_attributes[(int) ENUM] = build_int_cst (NULL_TREE, VALUE);
907 #define DEF_ATTR_STRING(ENUM, VALUE) \
908 built_in_attributes[(int) ENUM] = build_string (strlen (VALUE), VALUE);
909 #define DEF_ATTR_IDENT(ENUM, STRING) \
910 built_in_attributes[(int) ENUM] = get_identifier (STRING);
911 #define DEF_ATTR_TREE_LIST(ENUM, PURPOSE, VALUE, CHAIN) \
912 built_in_attributes[(int) ENUM] \
913 = tree_cons (built_in_attributes[(int) PURPOSE], \
914 built_in_attributes[(int) VALUE], \
915 built_in_attributes[(int) CHAIN]);
916 #include "builtin-attrs.def"
917 #undef DEF_ATTR_NULL_TREE
919 #undef DEF_ATTR_STRING
920 #undef DEF_ATTR_IDENT
921 #undef DEF_ATTR_TREE_LIST
928 #define DEF_PRIMITIVE_TYPE(NAME, VALUE) NAME,
929 #define DEF_FUNCTION_TYPE_0(NAME, RETURN) NAME,
930 #define DEF_FUNCTION_TYPE_1(NAME, RETURN, ARG1) NAME,
931 #define DEF_FUNCTION_TYPE_2(NAME, RETURN, ARG1, ARG2) NAME,
932 #define DEF_FUNCTION_TYPE_3(NAME, RETURN, ARG1, ARG2, ARG3) NAME,
933 #define DEF_FUNCTION_TYPE_4(NAME, RETURN, ARG1, ARG2, ARG3, ARG4) NAME,
934 #define DEF_FUNCTION_TYPE_5(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5) NAME,
935 #define DEF_FUNCTION_TYPE_6(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
937 #define DEF_FUNCTION_TYPE_7(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
939 #define DEF_FUNCTION_TYPE_8(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
940 ARG6, ARG7, ARG8) NAME,
941 #define DEF_FUNCTION_TYPE_9(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
942 ARG6, ARG7, ARG8, ARG9) NAME,
943 #define DEF_FUNCTION_TYPE_10(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
944 ARG6, ARG7, ARG8, ARG9, ARG10) NAME,
945 #define DEF_FUNCTION_TYPE_11(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
946 ARG6, ARG7, ARG8, ARG9, ARG10, ARG11) NAME,
947 #define DEF_FUNCTION_TYPE_VAR_0(NAME, RETURN) NAME,
948 #define DEF_FUNCTION_TYPE_VAR_1(NAME, RETURN, ARG1) NAME,
949 #define DEF_FUNCTION_TYPE_VAR_2(NAME, RETURN, ARG1, ARG2) NAME,
950 #define DEF_FUNCTION_TYPE_VAR_3(NAME, RETURN, ARG1, ARG2, ARG3) NAME,
951 #define DEF_FUNCTION_TYPE_VAR_4(NAME, RETURN, ARG1, ARG2, ARG3, ARG4) NAME,
952 #define DEF_FUNCTION_TYPE_VAR_5(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5) \
954 #define DEF_FUNCTION_TYPE_VAR_6(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
956 #define DEF_FUNCTION_TYPE_VAR_7(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
958 #define DEF_FUNCTION_TYPE_VAR_11(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
959 ARG6, ARG7, ARG8, ARG9, ARG10, ARG11) NAME,
960 #define DEF_POINTER_TYPE(NAME, TYPE) NAME,
961 #include "builtin-types.def"
962 #undef DEF_PRIMITIVE_TYPE
963 #undef DEF_FUNCTION_TYPE_0
964 #undef DEF_FUNCTION_TYPE_1
965 #undef DEF_FUNCTION_TYPE_2
966 #undef DEF_FUNCTION_TYPE_3
967 #undef DEF_FUNCTION_TYPE_4
968 #undef DEF_FUNCTION_TYPE_5
969 #undef DEF_FUNCTION_TYPE_6
970 #undef DEF_FUNCTION_TYPE_7
971 #undef DEF_FUNCTION_TYPE_8
972 #undef DEF_FUNCTION_TYPE_9
973 #undef DEF_FUNCTION_TYPE_10
974 #undef DEF_FUNCTION_TYPE_11
975 #undef DEF_FUNCTION_TYPE_VAR_0
976 #undef DEF_FUNCTION_TYPE_VAR_1
977 #undef DEF_FUNCTION_TYPE_VAR_2
978 #undef DEF_FUNCTION_TYPE_VAR_3
979 #undef DEF_FUNCTION_TYPE_VAR_4
980 #undef DEF_FUNCTION_TYPE_VAR_5
981 #undef DEF_FUNCTION_TYPE_VAR_6
982 #undef DEF_FUNCTION_TYPE_VAR_7
983 #undef DEF_FUNCTION_TYPE_VAR_11
984 #undef DEF_POINTER_TYPE
988 typedef enum d_builtin_type builtin_type
;
990 /* A temporary array used in communication with def_fn_type. */
991 static GTY(()) tree builtin_types
[(int) BT_LAST
+ 1];
993 /* A helper function for d_init_builtins. Build function type for DEF with
994 return type RET and N arguments. If VAR is true, then the function should
995 be variadic after those N arguments.
997 Takes special care not to ICE if any of the types involved are
998 error_mark_node, which indicates that said type is not in fact available
999 (see builtin_type_for_size). In which case the function type as a whole
1000 should be error_mark_node. */
1003 def_fn_type (builtin_type def
, builtin_type ret
, bool var
, int n
, ...)
1006 tree
*args
= XALLOCAVEC (tree
, n
);
1011 for (i
= 0; i
< n
; ++i
)
1013 builtin_type a
= (builtin_type
) va_arg (list
, int);
1014 t
= builtin_types
[a
];
1015 if (t
== error_mark_node
)
1020 t
= builtin_types
[ret
];
1021 if (t
== error_mark_node
)
1024 t
= build_varargs_function_type_array (t
, n
, args
);
1026 t
= build_function_type_array (t
, n
, args
);
1029 builtin_types
[def
] = t
;
1033 /* Create builtin types and functions. VA_LIST_REF_TYPE_NODE and
1034 VA_LIST_ARG_TYPE_NODE are used in builtin-types.def. */
1037 d_define_builtins (tree va_list_ref_type_node ATTRIBUTE_UNUSED
,
1038 tree va_list_arg_type_node ATTRIBUTE_UNUSED
)
1040 #define DEF_PRIMITIVE_TYPE(ENUM, VALUE) \
1041 builtin_types[(int) ENUM] = VALUE;
1042 #define DEF_FUNCTION_TYPE_0(ENUM, RETURN) \
1043 def_fn_type (ENUM, RETURN, 0, 0);
1044 #define DEF_FUNCTION_TYPE_1(ENUM, RETURN, ARG1) \
1045 def_fn_type (ENUM, RETURN, 0, 1, ARG1);
1046 #define DEF_FUNCTION_TYPE_2(ENUM, RETURN, ARG1, ARG2) \
1047 def_fn_type (ENUM, RETURN, 0, 2, ARG1, ARG2);
1048 #define DEF_FUNCTION_TYPE_3(ENUM, RETURN, ARG1, ARG2, ARG3) \
1049 def_fn_type (ENUM, RETURN, 0, 3, ARG1, ARG2, ARG3);
1050 #define DEF_FUNCTION_TYPE_4(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4) \
1051 def_fn_type (ENUM, RETURN, 0, 4, ARG1, ARG2, ARG3, ARG4);
1052 #define DEF_FUNCTION_TYPE_5(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5) \
1053 def_fn_type (ENUM, RETURN, 0, 5, ARG1, ARG2, ARG3, ARG4, ARG5);
1054 #define DEF_FUNCTION_TYPE_6(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
1056 def_fn_type (ENUM, RETURN, 0, 6, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6);
1057 #define DEF_FUNCTION_TYPE_7(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
1059 def_fn_type (ENUM, RETURN, 0, 7, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6, ARG7);
1060 #define DEF_FUNCTION_TYPE_8(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
1062 def_fn_type (ENUM, RETURN, 0, 8, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6, \
1064 #define DEF_FUNCTION_TYPE_9(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
1065 ARG6, ARG7, ARG8, ARG9) \
1066 def_fn_type (ENUM, RETURN, 0, 9, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6, \
1068 #define DEF_FUNCTION_TYPE_10(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
1069 ARG6, ARG7, ARG8, ARG9, ARG10) \
1070 def_fn_type (ENUM, RETURN, 0, 10, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6, \
1071 ARG7, ARG8, ARG9, ARG10);
1072 #define DEF_FUNCTION_TYPE_11(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
1073 ARG6, ARG7, ARG8, ARG9, ARG10, ARG11) \
1074 def_fn_type (ENUM, RETURN, 0, 11, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6, \
1075 ARG7, ARG8, ARG9, ARG10, ARG11);
1076 #define DEF_FUNCTION_TYPE_VAR_0(ENUM, RETURN) \
1077 def_fn_type (ENUM, RETURN, 1, 0);
1078 #define DEF_FUNCTION_TYPE_VAR_1(ENUM, RETURN, ARG1) \
1079 def_fn_type (ENUM, RETURN, 1, 1, ARG1);
1080 #define DEF_FUNCTION_TYPE_VAR_2(ENUM, RETURN, ARG1, ARG2) \
1081 def_fn_type (ENUM, RETURN, 1, 2, ARG1, ARG2);
1082 #define DEF_FUNCTION_TYPE_VAR_3(ENUM, RETURN, ARG1, ARG2, ARG3) \
1083 def_fn_type (ENUM, RETURN, 1, 3, ARG1, ARG2, ARG3);
1084 #define DEF_FUNCTION_TYPE_VAR_4(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4) \
1085 def_fn_type (ENUM, RETURN, 1, 4, ARG1, ARG2, ARG3, ARG4);
1086 #define DEF_FUNCTION_TYPE_VAR_5(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5) \
1087 def_fn_type (ENUM, RETURN, 1, 5, ARG1, ARG2, ARG3, ARG4, ARG5);
1088 #define DEF_FUNCTION_TYPE_VAR_6(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
1090 def_fn_type (ENUM, RETURN, 1, 6, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6);
1091 #define DEF_FUNCTION_TYPE_VAR_7(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
1093 def_fn_type (ENUM, RETURN, 1, 7, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6, ARG7);
1094 #define DEF_FUNCTION_TYPE_VAR_11(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
1095 ARG6, ARG7, ARG8, ARG9, ARG10, ARG11) \
1096 def_fn_type (ENUM, RETURN, 1, 11, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6, \
1097 ARG7, ARG8, ARG9, ARG10, ARG11);
1098 #define DEF_POINTER_TYPE(ENUM, TYPE) \
1099 builtin_types[(int) ENUM] = build_pointer_type (builtin_types[(int) TYPE]);
1101 #include "builtin-types.def"
1103 #undef DEF_PRIMITIVE_TYPE
1104 #undef DEF_FUNCTION_TYPE_1
1105 #undef DEF_FUNCTION_TYPE_2
1106 #undef DEF_FUNCTION_TYPE_3
1107 #undef DEF_FUNCTION_TYPE_4
1108 #undef DEF_FUNCTION_TYPE_5
1109 #undef DEF_FUNCTION_TYPE_6
1110 #undef DEF_FUNCTION_TYPE_7
1111 #undef DEF_FUNCTION_TYPE_8
1112 #undef DEF_FUNCTION_TYPE_9
1113 #undef DEF_FUNCTION_TYPE_10
1114 #undef DEF_FUNCTION_TYPE_11
1115 #undef DEF_FUNCTION_TYPE_VAR_0
1116 #undef DEF_FUNCTION_TYPE_VAR_1
1117 #undef DEF_FUNCTION_TYPE_VAR_2
1118 #undef DEF_FUNCTION_TYPE_VAR_3
1119 #undef DEF_FUNCTION_TYPE_VAR_4
1120 #undef DEF_FUNCTION_TYPE_VAR_5
1121 #undef DEF_FUNCTION_TYPE_VAR_6
1122 #undef DEF_FUNCTION_TYPE_VAR_7
1123 #undef DEF_FUNCTION_TYPE_VAR_11
1124 #undef DEF_POINTER_TYPE
1125 builtin_types
[(int) BT_LAST
] = NULL_TREE
;
1127 d_init_attributes ();
1129 #define DEF_BUILTIN(ENUM, NAME, CLASS, TYPE, LIBTYPE, BOTH_P, FALLBACK_P, \
1130 NONANSI_P, ATTRS, IMPLICIT, COND) \
1132 do_build_builtin_fn (ENUM, NAME, CLASS, \
1133 builtin_types[(int) TYPE], \
1134 BOTH_P, FALLBACK_P, \
1135 built_in_attributes[(int) ATTRS], IMPLICIT);
1136 #include "builtins.def"
1140 /* Build builtin functions and types for the D language frontend. */
1143 d_init_builtins (void)
1145 /* Build the "standard" abi va_list. */
1146 Type::tvalist
= build_frontend_type (va_list_type_node
);
1148 sorry ("cannot represent built-in %<va_list%> type in D");
1150 /* Map the va_list type to the D frontend Type. This is to prevent both
1151 errors in gimplification or an ICE in targetm.canonical_va_list_type. */
1152 Type::tvalist
->ctype
= va_list_type_node
;
1153 TYPE_LANG_SPECIFIC (va_list_type_node
) = build_lang_type (Type::tvalist
);
1155 d_build_c_type_nodes ();
1156 d_build_d_type_nodes ();
1158 if (TREE_CODE (va_list_type_node
) == ARRAY_TYPE
)
1160 /* It might seem natural to make the argument type a pointer, but there
1161 is no implicit casting from arrays to pointers in D. */
1162 d_define_builtins (va_list_type_node
, va_list_type_node
);
1166 d_define_builtins (build_reference_type (va_list_type_node
),
1170 targetm
.init_builtins ();
1171 build_common_builtin_nodes ();
1174 /* Registration of machine- or os-specific builtin types.
1175 Add to builtin types list for maybe processing later
1176 if `gcc.builtins' was imported into the current module. */
1179 d_register_builtin_type (tree type
, const char *name
)
1181 tree decl
= build_decl (UNKNOWN_LOCATION
, TYPE_DECL
,
1182 get_identifier (name
), type
);
1183 DECL_ARTIFICIAL (decl
) = 1;
1185 if (!TYPE_NAME (type
))
1186 TYPE_NAME (type
) = decl
;
1188 vec_safe_push (gcc_builtins_types
, decl
);
1191 /* Add DECL to builtin functions list for maybe processing later
1192 if `gcc.builtins' was imported into the current module. */
1195 d_builtin_function (tree decl
)
1197 if (!flag_no_builtin
&& DECL_ASSEMBLER_NAME_SET_P (decl
))
1198 vec_safe_push (gcc_builtins_libfuncs
, decl
);
1200 vec_safe_push (gcc_builtins_functions
, decl
);
1205 #include "gt-d-d-builtins.h"