1 /* d-builtins.cc -- GCC builtins support for D.
2 Copyright (C) 2006-2019 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
,
256 vd
->offset
= tree_to_uhwi (DECL_FIELD_OFFSET (field
));
257 vd
->semanticRun
= PASSsemanticdone
;
259 sdecl
->members
->push (vd
);
260 sdecl
->fields
.push (vd
);
264 builtin_converted_decls
.safe_push (builtin_data (dtype
, type
, sdecl
));
269 dtype
= build_frontend_type (TREE_TYPE (type
));
272 tree parms
= TYPE_ARG_TYPES (type
);
275 Parameters
*args
= new Parameters
;
276 args
->reserve (list_length (parms
));
278 /* Attempt to convert all parameter types. */
279 for (tree parm
= parms
; parm
!= NULL_TREE
; parm
= TREE_CHAIN (parm
))
281 tree argtype
= TREE_VALUE (parm
);
282 if (argtype
== void_type_node
)
288 StorageClass sc
= STCundefined
;
289 if (TREE_CODE (argtype
) == REFERENCE_TYPE
)
291 argtype
= TREE_TYPE (argtype
);
295 Type
*targ
= build_frontend_type (argtype
);
302 args
->push (Parameter::create (sc
, targ
, NULL
, NULL
));
305 /* GCC generic and placeholder built-ins are marked as variadic, yet
306 have no named parameters, and so can't be represented in D. */
307 if (args
->dim
!= 0 || !varargs_p
)
309 dtype
= TypeFunction::create (args
, dtype
, varargs_p
, LINKc
);
310 return dtype
->addMod (mod
);
322 /* Attempt to convert GCC evaluated CST to a D Frontend Expression.
323 This is used for getting the CTFE value out of a const-folded builtin,
324 returns NULL if it cannot convert CST. */
327 d_eval_constant_expression (tree cst
)
329 STRIP_TYPE_NOPS (cst
);
330 Type
*type
= build_frontend_type (TREE_TYPE (cst
));
334 /* Convert our GCC CST tree into a D Expression. This seems like we are
335 trying too hard, as these will only be converted back to a tree again
336 later in the codegen pass, but satisfies the need to have GCC built-ins
337 CTFE-able in the frontend. */
338 tree_code code
= TREE_CODE (cst
);
339 if (code
== COMPLEX_CST
)
341 real_value re
= TREE_REAL_CST (TREE_REALPART (cst
));
342 real_value im
= TREE_REAL_CST (TREE_IMAGPART (cst
));
343 complex_t value
= complex_t (ldouble (re
), ldouble (im
));
344 return ComplexExp::create (Loc (), value
, type
);
346 else if (code
== INTEGER_CST
)
348 dinteger_t value
= TREE_INT_CST_LOW (cst
);
349 return IntegerExp::create (Loc (), value
, type
);
351 else if (code
== REAL_CST
)
353 real_value value
= TREE_REAL_CST (cst
);
354 return RealExp::create (Loc (), ldouble (value
), type
);
356 else if (code
== STRING_CST
)
358 const void *string
= TREE_STRING_POINTER (cst
);
359 size_t len
= TREE_STRING_LENGTH (cst
);
360 return StringExp::create (Loc (), CONST_CAST (void *, string
), len
);
362 else if (code
== VECTOR_CST
)
364 dinteger_t nunits
= VECTOR_CST_NELTS (cst
).to_constant ();
365 Expressions
*elements
= new Expressions
;
366 elements
->setDim (nunits
);
368 for (size_t i
= 0; i
< nunits
; i
++)
371 = d_eval_constant_expression (VECTOR_CST_ELT (cst
, i
));
375 (*elements
)[i
] = elem
;
378 Expression
*e
= ArrayLiteralExp::create (Loc (), elements
);
379 e
->type
= ((TypeVector
*) type
)->basetype
;
381 return VectorExp::create (Loc (), e
, type
);
388 /* Callback for TARGET_D_CPU_VERSIONS and TARGET_D_OS_VERSIONS.
389 Adds IDENT to the list of predefined version identifiers. */
392 d_add_builtin_version (const char* ident
)
394 /* For now, we need to tell the D frontend what platform is being targeted.
395 This should be removed once the frontend has been fixed. */
396 if (strcmp (ident
, "linux") == 0)
397 global
.params
.isLinux
= true;
398 else if (strcmp (ident
, "OSX") == 0)
399 global
.params
.isOSX
= true;
400 else if (strcmp (ident
, "Windows") == 0)
401 global
.params
.isWindows
= true;
402 else if (strcmp (ident
, "FreeBSD") == 0)
403 global
.params
.isFreeBSD
= true;
404 else if (strcmp (ident
, "OpenBSD") == 0)
405 global
.params
.isOpenBSD
= true;
406 else if (strcmp (ident
, "Solaris") == 0)
407 global
.params
.isSolaris
= true;
408 /* The is64bit field only refers to x86_64 target. */
409 else if (strcmp (ident
, "X86_64") == 0)
410 global
.params
.is64bit
= true;
411 /* No other fields are required to be set for the frontend. */
413 VersionCondition::addPredefinedGlobalIdent (ident
);
416 /* Initialize the list of all the predefined version identifiers. */
419 d_init_versions (void)
421 VersionCondition::addPredefinedGlobalIdent ("GNU");
422 VersionCondition::addPredefinedGlobalIdent ("D_Version2");
424 if (BYTES_BIG_ENDIAN
)
425 VersionCondition::addPredefinedGlobalIdent ("BigEndian");
427 VersionCondition::addPredefinedGlobalIdent ("LittleEndian");
429 if (targetm_common
.except_unwind_info (&global_options
) == UI_SJLJ
)
430 VersionCondition::addPredefinedGlobalIdent ("GNU_SjLj_Exceptions");
431 else if (targetm_common
.except_unwind_info (&global_options
) == UI_SEH
)
432 VersionCondition::addPredefinedGlobalIdent ("GNU_SEH_Exceptions");
433 else if (targetm_common
.except_unwind_info (&global_options
) == UI_DWARF2
)
434 VersionCondition::addPredefinedGlobalIdent ("GNU_DWARF2_Exceptions");
436 if (!targetm
.have_tls
)
437 VersionCondition::addPredefinedGlobalIdent ("GNU_EMUTLS");
439 if (STACK_GROWS_DOWNWARD
)
440 VersionCondition::addPredefinedGlobalIdent ("GNU_StackGrowsDown");
442 /* Should define this anyway to set us apart from the competition. */
443 VersionCondition::addPredefinedGlobalIdent ("GNU_InlineAsm");
445 /* LP64 only means 64bit pointers in D. */
446 if (global
.params
.isLP64
)
447 VersionCondition::addPredefinedGlobalIdent ("D_LP64");
449 /* Setting `global.params.cov' forces module info generation which is
450 not needed for the GCC coverage implementation. Instead, just
451 test flag_test_coverage while leaving `global.params.cov' unset. */
452 if (flag_test_coverage
)
453 VersionCondition::addPredefinedGlobalIdent ("D_Coverage");
455 VersionCondition::addPredefinedGlobalIdent ("D_PIC");
457 if (global
.params
.doDocComments
)
458 VersionCondition::addPredefinedGlobalIdent ("D_Ddoc");
460 if (global
.params
.useUnitTests
)
461 VersionCondition::addPredefinedGlobalIdent ("unittest");
463 if (global
.params
.useAssert
)
464 VersionCondition::addPredefinedGlobalIdent ("assert");
466 if (global
.params
.useArrayBounds
== BOUNDSCHECKoff
)
467 VersionCondition::addPredefinedGlobalIdent ("D_NoBoundsChecks");
469 if (global
.params
.betterC
)
470 VersionCondition::addPredefinedGlobalIdent ("D_BetterC");
473 VersionCondition::addPredefinedGlobalIdent ("D_ModuleInfo");
474 VersionCondition::addPredefinedGlobalIdent ("D_Exceptions");
475 VersionCondition::addPredefinedGlobalIdent ("D_TypeInfo");
478 VersionCondition::addPredefinedGlobalIdent ("all");
480 /* Emit all target-specific version identifiers. */
481 targetdm
.d_cpu_versions ();
482 targetdm
.d_os_versions ();
484 VersionCondition::addPredefinedGlobalIdent ("CppRuntime_Gcc");
487 /* A helper for d_build_builtins_module. Return a new ALIAS for TYPE.
488 Analogous to `alias ALIAS = TYPE' in D code. */
490 static AliasDeclaration
*
491 build_alias_declaration (const char *alias
, Type
*type
)
493 return AliasDeclaration::create (Loc (), Identifier::idPool (alias
), type
);
496 /* A helper function for Target::loadModule. Generates all code for the
497 `gcc.builtins' module, whose frontend symbol should be M. */
500 d_build_builtins_module (Module
*m
)
502 Dsymbols
*members
= new Dsymbols
;
505 for (size_t i
= 0; vec_safe_iterate (gcc_builtins_functions
, i
, &decl
); ++i
)
507 const char *name
= IDENTIFIER_POINTER (DECL_NAME (decl
));
509 = (TypeFunction
*) build_frontend_type (TREE_TYPE (decl
));
511 /* Cannot create built-in function type for DECL. */
515 /* A few notes on D2 attributes applied to builtin functions:
516 - It is assumed that built-ins solely provided by the compiler are
517 considered @safe and pure.
518 - Built-ins that correspond to `extern(C)' functions in the standard
519 library that have `__attribute__(nothrow)' are considered `@trusted'.
520 - The purity of a built-in can vary depending on compiler flags set
521 upon initialization, or by the `-foptions' passed, such as
522 flag_unsafe_math_optimizations.
523 - Built-ins never use the GC or raise a D exception, and so are always
524 marked as `nothrow' and `@nogc'. */
525 tf
->purity
= DECL_PURE_P (decl
) ? PUREstrong
526 : TREE_READONLY (decl
) ? PUREconst
527 : DECL_IS_NOVOPS (decl
) ? PUREweak
528 : !DECL_ASSEMBLER_NAME_SET_P (decl
) ? PUREweak
530 tf
->trust
= !DECL_ASSEMBLER_NAME_SET_P (decl
) ? TRUSTsafe
531 : TREE_NOTHROW (decl
) ? TRUSTtrusted
533 tf
->isnothrow
= true;
536 FuncDeclaration
*func
537 = FuncDeclaration::create (Loc (), Loc (),
538 Identifier::idPool (name
),
540 DECL_LANG_SPECIFIC (decl
) = build_lang_decl (func
);
542 func
->builtin
= BUILTINyes
;
544 members
->push (func
);
547 for (size_t i
= 0; vec_safe_iterate (gcc_builtins_types
, i
, &decl
); ++i
)
549 const char *name
= IDENTIFIER_POINTER (DECL_NAME (decl
));
550 Type
*t
= build_frontend_type (TREE_TYPE (decl
));
552 /* Cannot create built-in type for DECL. */
556 members
->push (build_alias_declaration (name
, t
));
559 /* Iterate through the target-specific builtin types for va_list. */
560 if (targetm
.enum_va_list_p
)
565 for (int i
= 0; targetm
.enum_va_list_p (i
, &name
, &type
); ++i
)
567 Type
*t
= build_frontend_type (type
);
568 /* Cannot create built-in type. */
572 members
->push (build_alias_declaration (name
, t
));
576 /* Push out declarations for any RECORD_TYPE types encountered when building
577 all builtin functions and types. */
578 for (size_t i
= 0; i
< builtin_converted_decls
.length (); ++i
)
580 /* Currently, there is no need to run semantic, but we do want to output
581 initializers, typeinfo, and others on demand. */
582 Dsymbol
*dsym
= builtin_converted_decls
[i
].dsym
;
583 if (dsym
!= NULL
&& !dsym
->isAnonymous ())
586 members
->push (dsym
);
590 /* va_list should already be built, so no need to convert to D type again. */
591 StructDeclaration
*sd
= (Type::tvalist
->ty
== Tstruct
)
592 ? ((TypeStruct
*) Type::tvalist
)->sym
: NULL
;
593 if (sd
== NULL
|| !sd
->isAnonymous ())
595 members
->push (build_alias_declaration ("__builtin_va_list",
600 sd
->ident
= Identifier::idPool ("__builtin_va_list");
604 /* Expose target-specific integer types to the builtins module. */
606 Type
*t
= build_frontend_type (long_integer_type_node
);
607 members
->push (build_alias_declaration ("__builtin_clong", t
));
609 t
= build_frontend_type (long_unsigned_type_node
);
610 members
->push (build_alias_declaration ("__builtin_culong", t
));
612 t
= build_frontend_type (long_long_integer_type_node
);
613 members
->push (build_alias_declaration ("__builtin_clonglong", t
));
615 t
= build_frontend_type (long_long_unsigned_type_node
);
616 members
->push (build_alias_declaration ("__builtin_culonglong", t
));
618 t
= build_frontend_type (lang_hooks
.types
.type_for_mode (byte_mode
, 0));
619 members
->push (build_alias_declaration ("__builtin_machine_byte", t
));
621 t
= build_frontend_type (lang_hooks
.types
.type_for_mode (byte_mode
, 1));
622 members
->push (build_alias_declaration ("__builtin_machine_ubyte", t
));
624 t
= build_frontend_type (lang_hooks
.types
.type_for_mode (word_mode
, 0));
625 members
->push (build_alias_declaration ("__builtin_machine_int", t
));
627 t
= build_frontend_type (lang_hooks
.types
.type_for_mode (word_mode
, 1));
628 members
->push (build_alias_declaration ("__builtin_machine_uint", t
));
630 t
= build_frontend_type (lang_hooks
.types
.type_for_mode (ptr_mode
, 0));
631 members
->push (build_alias_declaration ("__builtin_pointer_int", t
));
633 t
= build_frontend_type (lang_hooks
.types
.type_for_mode (ptr_mode
, 1));
634 members
->push (build_alias_declaration ("__builtin_pointer_uint", t
));
636 /* _Unwind_Word has its own target specific mode. */
637 machine_mode mode
= targetm
.unwind_word_mode ();
638 t
= build_frontend_type (lang_hooks
.types
.type_for_mode (mode
, 0));
639 members
->push (build_alias_declaration ("__builtin_unwind_int", t
));
641 t
= build_frontend_type (lang_hooks
.types
.type_for_mode (mode
, 1));
642 members
->push (build_alias_declaration ("__builtin_unwind_uint", t
));
645 m
->members
->push (LinkDeclaration::create (LINKc
, members
));
648 /* Search for any `extern(C)' functions that match any known GCC library builtin
649 function in D and override its internal back-end symbol. */
652 maybe_set_builtin_1 (Dsymbol
*d
)
654 AttribDeclaration
*ad
= d
->isAttribDeclaration ();
655 FuncDeclaration
*fd
= d
->isFuncDeclaration ();
659 /* Recursively search through attribute decls. */
660 Dsymbols
*decls
= ad
->include (NULL
, NULL
);
661 if (decls
&& decls
->dim
)
663 for (size_t i
= 0; i
< decls
->dim
; i
++)
665 Dsymbol
*sym
= (*decls
)[i
];
666 maybe_set_builtin_1 (sym
);
670 else if (fd
&& !fd
->fbody
)
674 for (size_t i
= 0; vec_safe_iterate (gcc_builtins_libfuncs
, i
, &t
); ++i
)
676 gcc_assert (DECL_ASSEMBLER_NAME_SET_P (t
));
678 const char *name
= IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (t
));
679 if (fd
->ident
!= Identifier::idPool (name
))
682 /* Found a match, tell the frontend this is a builtin. */
683 DECL_LANG_SPECIFIC (t
) = build_lang_decl (fd
);
685 fd
->builtin
= BUILTINyes
;
691 /* A helper function for Target::loadModule. Traverse all members in module M
692 to search for any functions that can be mapped to any GCC builtin. */
695 d_maybe_set_builtin (Module
*m
)
697 if (!m
|| !m
->members
)
700 for (size_t i
= 0; i
< m
->members
->dim
; i
++)
702 Dsymbol
*sym
= (*m
->members
)[i
];
703 maybe_set_builtin_1 (sym
);
707 /* Used to help initialize the builtin-types.def table. When a type of
708 the correct size doesn't exist, use error_mark_node instead of NULL.
709 The latter results in segfaults even when a decl using the type doesn't
713 builtin_type_for_size (int size
, bool unsignedp
)
715 tree type
= lang_hooks
.types
.type_for_size (size
, unsignedp
);
716 return type
? type
: error_mark_node
;
719 /* Support for DEF_BUILTIN. */
722 do_build_builtin_fn (built_in_function fncode
,
724 built_in_class fnclass
,
725 tree fntype
, bool both_p
, bool fallback_p
,
726 tree fnattrs
, bool implicit_p
)
731 if (fntype
== error_mark_node
)
734 gcc_assert ((!both_p
&& !fallback_p
)
735 || !strncmp (name
, "__builtin_",
736 strlen ("__builtin_")));
738 libname
= name
+ strlen ("__builtin_");
740 decl
= add_builtin_function (name
, fntype
, fncode
, fnclass
,
741 fallback_p
? libname
: NULL
, fnattrs
);
743 set_builtin_decl (fncode
, decl
, implicit_p
);
746 /* Standard data types to be used in builtin argument declarations. */
748 static GTY(()) tree string_type_node
;
749 static GTY(()) tree const_string_type_node
;
750 static GTY(()) tree wint_type_node
;
751 static GTY(()) tree intmax_type_node
;
752 static GTY(()) tree uintmax_type_node
;
753 static GTY(()) tree signed_size_type_node
;
756 /* Build nodes that would have been created by the C front-end; necessary
757 for including builtin-types.def and ultimately builtins.def. */
760 d_build_c_type_nodes (void)
762 void_list_node
= build_tree_list (NULL_TREE
, void_type_node
);
763 string_type_node
= build_pointer_type (char_type_node
);
764 const_string_type_node
765 = build_pointer_type (build_qualified_type (char_type_node
,
768 if (strcmp (UINTMAX_TYPE
, "unsigned int") == 0)
770 intmax_type_node
= integer_type_node
;
771 uintmax_type_node
= unsigned_type_node
;
773 else if (strcmp (UINTMAX_TYPE
, "long unsigned int") == 0)
775 intmax_type_node
= long_integer_type_node
;
776 uintmax_type_node
= long_unsigned_type_node
;
778 else if (strcmp (UINTMAX_TYPE
, "long long unsigned int") == 0)
780 intmax_type_node
= long_long_integer_type_node
;
781 uintmax_type_node
= long_long_unsigned_type_node
;
786 signed_size_type_node
= signed_type_for (size_type_node
);
787 wint_type_node
= unsigned_type_node
;
788 pid_type_node
= integer_type_node
;
791 /* Build nodes that are used by the D front-end.
792 These are distinct from C types. */
795 d_build_d_type_nodes (void)
797 /* Integral types. */
798 d_byte_type
= make_signed_type (8);
799 d_ubyte_type
= make_unsigned_type (8);
801 d_short_type
= make_signed_type (16);
802 d_ushort_type
= make_unsigned_type (16);
804 d_int_type
= make_signed_type (32);
805 d_uint_type
= make_unsigned_type (32);
807 d_long_type
= make_signed_type (64);
808 d_ulong_type
= make_unsigned_type (64);
810 d_cent_type
= make_signed_type (128);
811 d_ucent_type
= make_unsigned_type (128);
814 /* Re-define size_t as a D type. */
815 machine_mode type_mode
= TYPE_MODE (size_type_node
);
816 size_type_node
= lang_hooks
.types
.type_for_mode (type_mode
, 1);
819 /* Bool and Character types. */
820 d_bool_type
= make_unsigned_type (1);
821 TREE_SET_CODE (d_bool_type
, BOOLEAN_TYPE
);
823 char8_type_node
= make_unsigned_type (8);
824 TYPE_STRING_FLAG (char8_type_node
) = 1;
826 char16_type_node
= make_unsigned_type (16);
827 TYPE_STRING_FLAG (char16_type_node
) = 1;
829 char32_type_node
= make_unsigned_type (32);
830 TYPE_STRING_FLAG (char32_type_node
) = 1;
832 /* Imaginary types. */
833 ifloat_type_node
= build_distinct_type_copy (float_type_node
);
834 TYPE_IMAGINARY_FLOAT (ifloat_type_node
) = 1;
836 idouble_type_node
= build_distinct_type_copy (double_type_node
);
837 TYPE_IMAGINARY_FLOAT (idouble_type_node
) = 1;
839 ireal_type_node
= build_distinct_type_copy (long_double_type_node
);
840 TYPE_IMAGINARY_FLOAT (ireal_type_node
) = 1;
842 /* Used for ModuleInfo, ClassInfo, and Interface decls. */
843 unknown_type_node
= make_node (RECORD_TYPE
);
845 /* Make sure we get a unique function type, so we can give
846 its pointer type a name. (This wins for gdb). */
848 tree vfunc_type
= make_node (FUNCTION_TYPE
);
849 TREE_TYPE (vfunc_type
) = d_int_type
;
850 TYPE_ARG_TYPES (vfunc_type
) = NULL_TREE
;
851 layout_type (vfunc_type
);
853 vtable_entry_type
= build_pointer_type (vfunc_type
);
856 vtbl_ptr_type_node
= build_pointer_type (vtable_entry_type
);
857 layout_type (vtbl_ptr_type_node
);
859 /* When an object is accessed via an interface, this type appears
860 as the first entry in its vtable. */
862 tree domain
= build_index_type (size_int (3));
863 vtbl_interface_type_node
= build_array_type (ptr_type_node
, domain
);
866 /* Use `void[]' as a generic dynamic array type. */
867 array_type_node
= make_struct_type ("__builtin_void[]", 2,
868 get_identifier ("length"), size_type_node
,
869 get_identifier ("ptr"), ptr_type_node
);
870 TYPE_DYNAMIC_ARRAY (array_type_node
) = 1;
872 null_array_node
= d_array_value (array_type_node
, size_zero_node
,
876 /* Handle default attributes. */
878 enum built_in_attribute
880 #define DEF_ATTR_NULL_TREE(ENUM) ENUM,
881 #define DEF_ATTR_INT(ENUM, VALUE) ENUM,
882 #define DEF_ATTR_STRING(ENUM, VALUE) ENUM,
883 #define DEF_ATTR_IDENT(ENUM, STRING) ENUM,
884 #define DEF_ATTR_TREE_LIST(ENUM, PURPOSE, VALUE, CHAIN) ENUM,
885 #include "builtin-attrs.def"
886 #undef DEF_ATTR_NULL_TREE
888 #undef DEF_ATTR_STRING
889 #undef DEF_ATTR_IDENT
890 #undef DEF_ATTR_TREE_LIST
894 static GTY(()) tree built_in_attributes
[(int) ATTR_LAST
];
896 /* Initialize the attribute table for all the supported builtins. */
899 d_init_attributes (void)
901 /* Fill in the built_in_attributes array. */
902 #define DEF_ATTR_NULL_TREE(ENUM) \
903 built_in_attributes[(int) ENUM] = NULL_TREE;
904 # define DEF_ATTR_INT(ENUM, VALUE) \
905 built_in_attributes[(int) ENUM] = build_int_cst (NULL_TREE, VALUE);
906 #define DEF_ATTR_STRING(ENUM, VALUE) \
907 built_in_attributes[(int) ENUM] = build_string (strlen (VALUE), VALUE);
908 #define DEF_ATTR_IDENT(ENUM, STRING) \
909 built_in_attributes[(int) ENUM] = get_identifier (STRING);
910 #define DEF_ATTR_TREE_LIST(ENUM, PURPOSE, VALUE, CHAIN) \
911 built_in_attributes[(int) ENUM] \
912 = tree_cons (built_in_attributes[(int) PURPOSE], \
913 built_in_attributes[(int) VALUE], \
914 built_in_attributes[(int) CHAIN]);
915 #include "builtin-attrs.def"
916 #undef DEF_ATTR_NULL_TREE
918 #undef DEF_ATTR_STRING
919 #undef DEF_ATTR_IDENT
920 #undef DEF_ATTR_TREE_LIST
927 #define DEF_PRIMITIVE_TYPE(NAME, VALUE) NAME,
928 #define DEF_FUNCTION_TYPE_0(NAME, RETURN) NAME,
929 #define DEF_FUNCTION_TYPE_1(NAME, RETURN, ARG1) NAME,
930 #define DEF_FUNCTION_TYPE_2(NAME, RETURN, ARG1, ARG2) NAME,
931 #define DEF_FUNCTION_TYPE_3(NAME, RETURN, ARG1, ARG2, ARG3) NAME,
932 #define DEF_FUNCTION_TYPE_4(NAME, RETURN, ARG1, ARG2, ARG3, ARG4) NAME,
933 #define DEF_FUNCTION_TYPE_5(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5) NAME,
934 #define DEF_FUNCTION_TYPE_6(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
936 #define DEF_FUNCTION_TYPE_7(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
938 #define DEF_FUNCTION_TYPE_8(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
939 ARG6, ARG7, ARG8) NAME,
940 #define DEF_FUNCTION_TYPE_9(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
941 ARG6, ARG7, ARG8, ARG9) NAME,
942 #define DEF_FUNCTION_TYPE_10(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
943 ARG6, ARG7, ARG8, ARG9, ARG10) NAME,
944 #define DEF_FUNCTION_TYPE_11(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
945 ARG6, ARG7, ARG8, ARG9, ARG10, ARG11) NAME,
946 #define DEF_FUNCTION_TYPE_VAR_0(NAME, RETURN) NAME,
947 #define DEF_FUNCTION_TYPE_VAR_1(NAME, RETURN, ARG1) NAME,
948 #define DEF_FUNCTION_TYPE_VAR_2(NAME, RETURN, ARG1, ARG2) NAME,
949 #define DEF_FUNCTION_TYPE_VAR_3(NAME, RETURN, ARG1, ARG2, ARG3) NAME,
950 #define DEF_FUNCTION_TYPE_VAR_4(NAME, RETURN, ARG1, ARG2, ARG3, ARG4) NAME,
951 #define DEF_FUNCTION_TYPE_VAR_5(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5) \
953 #define DEF_FUNCTION_TYPE_VAR_6(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
955 #define DEF_FUNCTION_TYPE_VAR_7(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
957 #define DEF_FUNCTION_TYPE_VAR_11(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
958 ARG6, ARG7, ARG8, ARG9, ARG10, ARG11) NAME,
959 #define DEF_POINTER_TYPE(NAME, TYPE) NAME,
960 #include "builtin-types.def"
961 #undef DEF_PRIMITIVE_TYPE
962 #undef DEF_FUNCTION_TYPE_0
963 #undef DEF_FUNCTION_TYPE_1
964 #undef DEF_FUNCTION_TYPE_2
965 #undef DEF_FUNCTION_TYPE_3
966 #undef DEF_FUNCTION_TYPE_4
967 #undef DEF_FUNCTION_TYPE_5
968 #undef DEF_FUNCTION_TYPE_6
969 #undef DEF_FUNCTION_TYPE_7
970 #undef DEF_FUNCTION_TYPE_8
971 #undef DEF_FUNCTION_TYPE_9
972 #undef DEF_FUNCTION_TYPE_10
973 #undef DEF_FUNCTION_TYPE_11
974 #undef DEF_FUNCTION_TYPE_VAR_0
975 #undef DEF_FUNCTION_TYPE_VAR_1
976 #undef DEF_FUNCTION_TYPE_VAR_2
977 #undef DEF_FUNCTION_TYPE_VAR_3
978 #undef DEF_FUNCTION_TYPE_VAR_4
979 #undef DEF_FUNCTION_TYPE_VAR_5
980 #undef DEF_FUNCTION_TYPE_VAR_6
981 #undef DEF_FUNCTION_TYPE_VAR_7
982 #undef DEF_FUNCTION_TYPE_VAR_11
983 #undef DEF_POINTER_TYPE
987 typedef enum d_builtin_type builtin_type
;
989 /* A temporary array used in communication with def_fn_type. */
990 static GTY(()) tree builtin_types
[(int) BT_LAST
+ 1];
992 /* A helper function for d_init_builtins. Build function type for DEF with
993 return type RET and N arguments. If VAR is true, then the function should
994 be variadic after those N arguments.
996 Takes special care not to ICE if any of the types involved are
997 error_mark_node, which indicates that said type is not in fact available
998 (see builtin_type_for_size). In which case the function type as a whole
999 should be error_mark_node. */
1002 def_fn_type (builtin_type def
, builtin_type ret
, bool var
, int n
, ...)
1005 tree
*args
= XALLOCAVEC (tree
, n
);
1010 for (i
= 0; i
< n
; ++i
)
1012 builtin_type a
= (builtin_type
) va_arg (list
, int);
1013 t
= builtin_types
[a
];
1014 if (t
== error_mark_node
)
1019 t
= builtin_types
[ret
];
1020 if (t
== error_mark_node
)
1023 t
= build_varargs_function_type_array (t
, n
, args
);
1025 t
= build_function_type_array (t
, n
, args
);
1028 builtin_types
[def
] = t
;
1032 /* Create builtin types and functions. VA_LIST_REF_TYPE_NODE and
1033 VA_LIST_ARG_TYPE_NODE are used in builtin-types.def. */
1036 d_define_builtins (tree va_list_ref_type_node ATTRIBUTE_UNUSED
,
1037 tree va_list_arg_type_node ATTRIBUTE_UNUSED
)
1039 #define DEF_PRIMITIVE_TYPE(ENUM, VALUE) \
1040 builtin_types[(int) ENUM] = VALUE;
1041 #define DEF_FUNCTION_TYPE_0(ENUM, RETURN) \
1042 def_fn_type (ENUM, RETURN, 0, 0);
1043 #define DEF_FUNCTION_TYPE_1(ENUM, RETURN, ARG1) \
1044 def_fn_type (ENUM, RETURN, 0, 1, ARG1);
1045 #define DEF_FUNCTION_TYPE_2(ENUM, RETURN, ARG1, ARG2) \
1046 def_fn_type (ENUM, RETURN, 0, 2, ARG1, ARG2);
1047 #define DEF_FUNCTION_TYPE_3(ENUM, RETURN, ARG1, ARG2, ARG3) \
1048 def_fn_type (ENUM, RETURN, 0, 3, ARG1, ARG2, ARG3);
1049 #define DEF_FUNCTION_TYPE_4(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4) \
1050 def_fn_type (ENUM, RETURN, 0, 4, ARG1, ARG2, ARG3, ARG4);
1051 #define DEF_FUNCTION_TYPE_5(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5) \
1052 def_fn_type (ENUM, RETURN, 0, 5, ARG1, ARG2, ARG3, ARG4, ARG5);
1053 #define DEF_FUNCTION_TYPE_6(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
1055 def_fn_type (ENUM, RETURN, 0, 6, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6);
1056 #define DEF_FUNCTION_TYPE_7(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
1058 def_fn_type (ENUM, RETURN, 0, 7, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6, ARG7);
1059 #define DEF_FUNCTION_TYPE_8(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
1061 def_fn_type (ENUM, RETURN, 0, 8, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6, \
1063 #define DEF_FUNCTION_TYPE_9(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
1064 ARG6, ARG7, ARG8, ARG9) \
1065 def_fn_type (ENUM, RETURN, 0, 9, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6, \
1067 #define DEF_FUNCTION_TYPE_10(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
1068 ARG6, ARG7, ARG8, ARG9, ARG10) \
1069 def_fn_type (ENUM, RETURN, 0, 10, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6, \
1070 ARG7, ARG8, ARG9, ARG10);
1071 #define DEF_FUNCTION_TYPE_11(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
1072 ARG6, ARG7, ARG8, ARG9, ARG10, ARG11) \
1073 def_fn_type (ENUM, RETURN, 0, 11, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6, \
1074 ARG7, ARG8, ARG9, ARG10, ARG11);
1075 #define DEF_FUNCTION_TYPE_VAR_0(ENUM, RETURN) \
1076 def_fn_type (ENUM, RETURN, 1, 0);
1077 #define DEF_FUNCTION_TYPE_VAR_1(ENUM, RETURN, ARG1) \
1078 def_fn_type (ENUM, RETURN, 1, 1, ARG1);
1079 #define DEF_FUNCTION_TYPE_VAR_2(ENUM, RETURN, ARG1, ARG2) \
1080 def_fn_type (ENUM, RETURN, 1, 2, ARG1, ARG2);
1081 #define DEF_FUNCTION_TYPE_VAR_3(ENUM, RETURN, ARG1, ARG2, ARG3) \
1082 def_fn_type (ENUM, RETURN, 1, 3, ARG1, ARG2, ARG3);
1083 #define DEF_FUNCTION_TYPE_VAR_4(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4) \
1084 def_fn_type (ENUM, RETURN, 1, 4, ARG1, ARG2, ARG3, ARG4);
1085 #define DEF_FUNCTION_TYPE_VAR_5(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5) \
1086 def_fn_type (ENUM, RETURN, 1, 5, ARG1, ARG2, ARG3, ARG4, ARG5);
1087 #define DEF_FUNCTION_TYPE_VAR_6(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
1089 def_fn_type (ENUM, RETURN, 1, 6, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6);
1090 #define DEF_FUNCTION_TYPE_VAR_7(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
1092 def_fn_type (ENUM, RETURN, 1, 7, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6, ARG7);
1093 #define DEF_FUNCTION_TYPE_VAR_11(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
1094 ARG6, ARG7, ARG8, ARG9, ARG10, ARG11) \
1095 def_fn_type (ENUM, RETURN, 1, 11, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6, \
1096 ARG7, ARG8, ARG9, ARG10, ARG11);
1097 #define DEF_POINTER_TYPE(ENUM, TYPE) \
1098 builtin_types[(int) ENUM] = build_pointer_type (builtin_types[(int) TYPE]);
1100 #include "builtin-types.def"
1102 #undef DEF_PRIMITIVE_TYPE
1103 #undef DEF_FUNCTION_TYPE_1
1104 #undef DEF_FUNCTION_TYPE_2
1105 #undef DEF_FUNCTION_TYPE_3
1106 #undef DEF_FUNCTION_TYPE_4
1107 #undef DEF_FUNCTION_TYPE_5
1108 #undef DEF_FUNCTION_TYPE_6
1109 #undef DEF_FUNCTION_TYPE_7
1110 #undef DEF_FUNCTION_TYPE_8
1111 #undef DEF_FUNCTION_TYPE_9
1112 #undef DEF_FUNCTION_TYPE_10
1113 #undef DEF_FUNCTION_TYPE_11
1114 #undef DEF_FUNCTION_TYPE_VAR_0
1115 #undef DEF_FUNCTION_TYPE_VAR_1
1116 #undef DEF_FUNCTION_TYPE_VAR_2
1117 #undef DEF_FUNCTION_TYPE_VAR_3
1118 #undef DEF_FUNCTION_TYPE_VAR_4
1119 #undef DEF_FUNCTION_TYPE_VAR_5
1120 #undef DEF_FUNCTION_TYPE_VAR_6
1121 #undef DEF_FUNCTION_TYPE_VAR_7
1122 #undef DEF_FUNCTION_TYPE_VAR_11
1123 #undef DEF_POINTER_TYPE
1124 builtin_types
[(int) BT_LAST
] = NULL_TREE
;
1126 d_init_attributes ();
1128 #define DEF_BUILTIN(ENUM, NAME, CLASS, TYPE, LIBTYPE, BOTH_P, FALLBACK_P, \
1129 NONANSI_P, ATTRS, IMPLICIT, COND) \
1131 do_build_builtin_fn (ENUM, NAME, CLASS, \
1132 builtin_types[(int) TYPE], \
1133 BOTH_P, FALLBACK_P, \
1134 built_in_attributes[(int) ATTRS], IMPLICIT);
1135 #include "builtins.def"
1139 /* Build builtin functions and types for the D language frontend. */
1142 d_init_builtins (void)
1144 /* Build the "standard" abi va_list. */
1145 Type::tvalist
= build_frontend_type (va_list_type_node
);
1147 sorry ("cannot represent built-in %<va_list%> type in D");
1149 /* Map the va_list type to the D frontend Type. This is to prevent both
1150 errors in gimplification or an ICE in targetm.canonical_va_list_type. */
1151 Type::tvalist
->ctype
= va_list_type_node
;
1152 TYPE_LANG_SPECIFIC (va_list_type_node
) = build_lang_type (Type::tvalist
);
1154 d_build_c_type_nodes ();
1155 d_build_d_type_nodes ();
1157 if (TREE_CODE (va_list_type_node
) == ARRAY_TYPE
)
1159 /* It might seem natural to make the argument type a pointer, but there
1160 is no implicit casting from arrays to pointers in D. */
1161 d_define_builtins (va_list_type_node
, va_list_type_node
);
1165 d_define_builtins (build_reference_type (va_list_type_node
),
1169 targetm
.init_builtins ();
1170 build_common_builtin_nodes ();
1173 /* Registration of machine- or os-specific builtin types.
1174 Add to builtin types list for maybe processing later
1175 if `gcc.builtins' was imported into the current module. */
1178 d_register_builtin_type (tree type
, const char *name
)
1180 tree decl
= build_decl (UNKNOWN_LOCATION
, TYPE_DECL
,
1181 get_identifier (name
), type
);
1182 DECL_ARTIFICIAL (decl
) = 1;
1184 if (!TYPE_NAME (type
))
1185 TYPE_NAME (type
) = decl
;
1187 vec_safe_push (gcc_builtins_types
, decl
);
1190 /* Add DECL to builtin functions list for maybe processing later
1191 if `gcc.builtins' was imported into the current module. */
1194 d_builtin_function (tree decl
)
1196 if (!flag_no_builtin
&& DECL_ASSEMBLER_NAME_SET_P (decl
))
1197 vec_safe_push (gcc_builtins_libfuncs
, decl
);
1199 vec_safe_push (gcc_builtins_functions
, decl
);
1204 #include "gt-d-d-builtins.h"