//===-- RuntimeFunctions.def - Runtime Functions Database -------*- C++ -*-===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
//
// This file defines x-macros used for metaprogramming with the set of
// runtime functions.
//
//===----------------------------------------------------------------------===//

/// FUNCTION(Id, Name, ReturnTys, ArgTys, CC, Attrs)
///   Makes available as "Id" the following runtime function:
///     ReturnTy Name(ArgsTys...);
///   ReturnTys is a call to RETURNS, which takes a non-empty list
///     of expressions meant to be looked up in IRGenModule.
///   ArgTys is either NO_ARGS or a call to ARGS, which takes a non-empty
///     list of expressions meant to be looked up in IRGenModule.
///   Attrs is a parenthesized list of attributes.
///
///   By default, passes Id to FUNCTION_ID.  Therefore, the valid uses of
///   this database define either:
///     FUNCTION_ID
///   or all of the following:
///     FUNCTION
///     RETURNS
///     ARGS
///     NO_ARGS
///     ATTRS
///     NO_ATTRS
#ifndef FUNCTION
#define FUNCTION(Id, Name, ReturnTys, ArgTys, CC, Attrs) FUNCTION_ID(Id)
#endif

// struct { RefCounted *box; void *value; } swift_allocBox(Metadata *type);
FUNCTION(AllocBox,       swift_allocBox,      RuntimeCC,
         RETURNS(RefCountedPtrTy, OpaquePtrTy),
         ARGS(TypeMetadataPtrTy),
         ATTRS(NoUnwind))

FUNCTION(DeallocBox,     swift_deallocBox,    RuntimeCC,
         RETURNS(VoidTy),
         ARGS(RefCountedPtrTy, TypeMetadataPtrTy),
         ATTRS(NoUnwind))

// RefCounted *swift_allocObject(Metadata *type, size_t size, size_t alignMask);
FUNCTION(AllocObject,    swift_allocObject,   RuntimeCC,
         RETURNS(RefCountedPtrTy),
         ARGS(TypeMetadataPtrTy, SizeTy, SizeTy),
         ATTRS(NoUnwind))

// void swift_deallocObject(RefCounted *obj, size_t size, size_t alignMask);
FUNCTION(DeallocObject,  swift_deallocObject, RuntimeCC,
         RETURNS(VoidTy),
         ARGS(RefCountedPtrTy, SizeTy, SizeTy),
         ATTRS(NoUnwind))

// void swift_deallocClassInstance(RefCounted *obj, size_t size, size_t alignMask);
FUNCTION(DeallocClassInstance,  swift_deallocClassInstance, RuntimeCC,
         RETURNS(VoidTy),
         ARGS(RefCountedPtrTy, SizeTy, SizeTy),
         ATTRS(NoUnwind))

// void *swift_slowAlloc(size_t size, size_t alignMask);
FUNCTION(SlowAlloc,      swift_slowAlloc,     RuntimeCC,
         RETURNS(Int8PtrTy),
         ARGS(SizeTy, SizeTy),
         ATTRS(NoUnwind))

// void swift_slowDealloc(void *ptr, size_t size, size_t alignMask);
FUNCTION(SlowDealloc, swift_slowDealloc,RuntimeCC,
         RETURNS(VoidTy),
         ARGS(Int8PtrTy, SizeTy, SizeTy),
         ATTRS(NoUnwind))

// void swift_willThrow(error *ptr);
FUNCTION(WillThrow, swift_willThrow, RuntimeCC,
         RETURNS(VoidTy),
         ARGS(ErrorPtrTy),
         ATTRS(NoUnwind))

// void swift_errorInMain(error *ptr);
FUNCTION(ErrorInMain, swift_errorInMain, RuntimeCC,
         RETURNS(VoidTy),
         ARGS(ErrorPtrTy),
         ATTRS(NoUnwind))

// void swift_unexpectedError(error *ptr);
FUNCTION(UnexpectedError, swift_unexpectedError, RuntimeCC,
         RETURNS(VoidTy),
         ARGS(ErrorPtrTy),
         ATTRS(NoUnwind, NoReturn))

// void *swift_copyPOD(void *dest, void *src, Metadata *self);
FUNCTION(CopyPOD,        swift_copyPOD,       RuntimeCC,
         RETURNS(OpaquePtrTy),
         ARGS(OpaquePtrTy, OpaquePtrTy, TypeMetadataPtrTy),
         ATTRS(NoUnwind))

// void swift_retain_noresult(void *ptr);
FUNCTION(RetainNoResult, swift_retain_noresult,RuntimeCC,
         RETURNS(VoidTy),
         ARGS(RefCountedPtrTy),
         ATTRS(NoUnwind))

// void swift_release(void *ptr);
FUNCTION(Release,        swift_release,       RuntimeCC,
         RETURNS(VoidTy),
         ARGS(RefCountedPtrTy),
         ATTRS(NoUnwind))

// void *swift_tryPin(void *ptr);
FUNCTION(TryPin, swift_tryPin, RuntimeCC,
         RETURNS(RefCountedPtrTy),
         ARGS(RefCountedPtrTy),
         ATTRS(NoUnwind))

// void swift_unpin(void *ptr);
FUNCTION(Unpin, swift_unpin, RuntimeCC,
         RETURNS(VoidTy),
         ARGS(RefCountedPtrTy),
         ATTRS(NoUnwind))

// void swift_fixLifetime(void *ptr);
FUNCTION(FixLifetime,        swift_fixLifetime,       RuntimeCC,
         RETURNS(VoidTy),
         ARGS(RefCountedPtrTy),
         ATTRS(NoUnwind))

// void swift_unknownRetain(void *ptr);
FUNCTION(UnknownRetain,        swift_unknownRetain,       RuntimeCC,
         RETURNS(VoidTy),
         ARGS(RefCountedPtrTy),
         ATTRS(NoUnwind))

// void swift_unknownRelease(void *ptr);
FUNCTION(UnknownRelease,        swift_unknownRelease,       RuntimeCC,
         RETURNS(VoidTy),
         ARGS(RefCountedPtrTy),
         ATTRS(NoUnwind))


// void swift_retainUnowned(void *ptr);
FUNCTION(RetainUnowned,  swift_retainUnowned, RuntimeCC,
         RETURNS(VoidTy),
         ARGS(RefCountedPtrTy),
         ATTRS(NoUnwind))

// void *swift_bridgeObjectRetain(void *ptr);
FUNCTION(BridgeObjectRetain, swift_bridgeObjectRetain, RuntimeCC,
         RETURNS(BridgeObjectPtrTy),
         ARGS(BridgeObjectPtrTy),
         ATTRS(NoUnwind))

// void swift_bridgeRelease(void *ptr);
FUNCTION(BridgeObjectRelease, swift_bridgeObjectRelease, RuntimeCC,
         RETURNS(VoidTy),
         ARGS(BridgeObjectPtrTy),
         ATTRS(NoUnwind))

// error *swift_errorRetain(error *ptr);
FUNCTION(ErrorRetain, swift_errorRetain, RuntimeCC,
         RETURNS(ErrorPtrTy),
         ARGS(ErrorPtrTy),
         ATTRS(NoUnwind))

// void swift_errorRelease(void *ptr);
FUNCTION(ErrorRelease, swift_errorRelease, RuntimeCC,
         RETURNS(VoidTy),
         ARGS(ErrorPtrTy),
         ATTRS(NoUnwind))

// void swift_weakRetain(void *ptr);
FUNCTION(UnownedRetain,  swift_weakRetain, RuntimeCC,
         RETURNS(VoidTy),
         ARGS(RefCountedPtrTy),
         ATTRS(NoUnwind))

// void swift_weakRelease(void *ptr);
FUNCTION(UnownedRelease, swift_weakRelease,RuntimeCC,
         RETURNS(VoidTy),
         ARGS(RefCountedPtrTy),
         ATTRS(NoUnwind))

// void swift_weakDestroy(WeakReference *object);
FUNCTION(WeakDestroy,    swift_weakDestroy,   RuntimeCC,
         RETURNS(VoidTy),
         ARGS(WeakReferencePtrTy),
         ATTRS(NoUnwind))

// void swift_weakInit(WeakReference *object, void *value);
FUNCTION(WeakInit,       swift_weakInit,      RuntimeCC,
         RETURNS(VoidTy),
         ARGS(WeakReferencePtrTy, RefCountedPtrTy),
         ATTRS(NoUnwind))

// void swift_weakAssign(WeakReference *object, void *value);
FUNCTION(WeakAssign,     swift_weakAssign,    RuntimeCC,
         RETURNS(VoidTy),
         ARGS(WeakReferencePtrTy, RefCountedPtrTy),
         ATTRS(NoUnwind))

// void *swift_weakLoadStrong(WeakReference *object);
FUNCTION(WeakLoadStrong, swift_weakLoadStrong,RuntimeCC,
         RETURNS(RefCountedPtrTy),
         ARGS(WeakReferencePtrTy),
         ATTRS(NoUnwind))

// void *swift_weakTakeStrong(WeakReference *object);
FUNCTION(WeakTakeStrong, swift_weakTakeStrong,RuntimeCC,
         RETURNS(RefCountedPtrTy),
         ARGS(WeakReferencePtrTy),
         ATTRS(NoUnwind))

// void swift_weakCopyInit(WeakReference *dest, WeakReference *src);
FUNCTION(WeakCopyInit,   swift_weakCopyInit,  RuntimeCC,
         RETURNS(VoidTy),
         ARGS(WeakReferencePtrTy, WeakReferencePtrTy),
         ATTRS(NoUnwind))

// void swift_weakTakeInit(WeakReference *dest, WeakReference *src);
FUNCTION(WeakTakeInit,   swift_weakTakeInit,  RuntimeCC,
         RETURNS(VoidTy),
         ARGS(WeakReferencePtrTy, WeakReferencePtrTy),
         ATTRS(NoUnwind))

// void swift_weakCopyAssign(WeakReference *dest, WeakReference *src);
FUNCTION(WeakCopyAssign, swift_weakCopyAssign,RuntimeCC,
         RETURNS(VoidTy),
         ARGS(WeakReferencePtrTy, WeakReferencePtrTy),
         ATTRS(NoUnwind))

// void swift_weakTakeAssign(WeakReference *dest, WeakReference *src);
FUNCTION(WeakTakeAssign, swift_weakTakeAssign,RuntimeCC,
         RETURNS(VoidTy),
         ARGS(WeakReferencePtrTy, WeakReferencePtrTy),
         ATTRS(NoUnwind))

// void swift_unknownRetainUnowned(void *ptr);
FUNCTION(UnknownRetainUnowned,  swift_unknownRetainUnowned, RuntimeCC,
         RETURNS(VoidTy),
         ARGS(RefCountedPtrTy),
         ATTRS(NoUnwind))

// void swift_unknownWeakRetain(void *value);
FUNCTION(UnknownUnownedRetain,  swift_unknownWeakRetain,    RuntimeCC,
         RETURNS(VoidTy),
         ARGS(RefCountedPtrTy),
         ATTRS(NoUnwind))

// void swift_unknownWeakRelease(void *value);
FUNCTION(UnknownUnownedRelease, swift_unknownWeakRelease,   RuntimeCC,
         RETURNS(VoidTy),
         ARGS(RefCountedPtrTy),
         ATTRS(NoUnwind))

// void swift_unknownWeakDestroy(WeakReference *object);
FUNCTION(UnknownWeakDestroy,    swift_unknownWeakDestroy,   RuntimeCC,
         RETURNS(VoidTy),
         ARGS(WeakReferencePtrTy),
         ATTRS(NoUnwind))

// void swift_unknownWeakInit(WeakReference *object, void *value);
FUNCTION(UnknownWeakInit,       swift_unknownWeakInit,      RuntimeCC,
         RETURNS(VoidTy),
         ARGS(WeakReferencePtrTy, UnknownRefCountedPtrTy),
         ATTRS(NoUnwind))

// void swift_unknownWeakAssign(WeakReference *object, void *value);
FUNCTION(UnknownWeakAssign,     swift_unknownWeakAssign,    RuntimeCC,
         RETURNS(VoidTy),
         ARGS(WeakReferencePtrTy, UnknownRefCountedPtrTy),
         ATTRS(NoUnwind))

// void *swift_unknownWeakLoad(WeakReference *object);
FUNCTION(UnknownWeakLoadStrong, swift_unknownWeakLoadStrong,RuntimeCC,
         RETURNS(UnknownRefCountedPtrTy),
         ARGS(WeakReferencePtrTy),
         ATTRS(NoUnwind))

// void *swift_unknownWeakTake(WeakReference *object);
FUNCTION(UnknownWeakTakeStrong, swift_unknownWeakTakeStrong,RuntimeCC,
         RETURNS(UnknownRefCountedPtrTy),
         ARGS(WeakReferencePtrTy),
         ATTRS(NoUnwind))

// void swift_unknownWeakCopyInit(WeakReference *dest, WeakReference *src);
FUNCTION(UnknownWeakCopyInit,   swift_unknownWeakCopyInit,  RuntimeCC,
         RETURNS(VoidTy),
         ARGS(WeakReferencePtrTy, WeakReferencePtrTy),
         ATTRS(NoUnwind))

// void swift_unknownWeakTakeInit(WeakReference *dest, WeakReference *src);
FUNCTION(UnknownWeakTakeInit,   swift_unknownWeakTakeInit,  RuntimeCC,
         RETURNS(VoidTy),
         ARGS(WeakReferencePtrTy, WeakReferencePtrTy),
         ATTRS(NoUnwind))

// void swift_unknownWeakCopyAssign(WeakReference *dest, WeakReference *src);
FUNCTION(UnknownWeakCopyAssign, swift_unknownWeakCopyAssign,RuntimeCC,
         RETURNS(VoidTy),
         ARGS(WeakReferencePtrTy, WeakReferencePtrTy),
         ATTRS(NoUnwind))

// bool _swift_isUniquelyReferencedNonObjC(const void *);
FUNCTION(IsUniquelyReferencedNonObjC, _swift_isUniquelyReferencedNonObjC,
         RuntimeCC,
         RETURNS(Int1Ty),
         ARGS(UnknownRefCountedPtrTy),
         ATTRS(NoUnwind))

// bool _swift_isUniquelyReferencedNonObjC_nonNull(const void *);
FUNCTION(IsUniquelyReferencedNonObjC_nonNull,
         _swift_isUniquelyReferencedNonObjC_nonNull,
         RuntimeCC,
         RETURNS(Int1Ty),
         ARGS(UnknownRefCountedPtrTy),
         ATTRS(NoUnwind))

// bool __swift_isUniquelyReferencedOrPinnedNonObjC_nonNull(const void *);
FUNCTION(IsUniquelyReferencedOrPinnedNonObjC_nonNull,
         _swift_isUniquelyReferencedOrPinnedNonObjC_nonNull,
         RuntimeCC,
         RETURNS(Int1Ty),
         ARGS(UnknownRefCountedPtrTy),
         ATTRS(NoUnwind))

// bool __swift_isUniquelyReferencedNonObjC_nonNull_bridgeObject(
//   __swift_uintptr_t bits);
FUNCTION(IsUniquelyReferencedNonObjC_nonNull_bridgeObject,
         _swift_isUniquelyReferencedNonObjC_nonNull_bridgeObject,
         RuntimeCC,
         RETURNS(Int1Ty),
         ARGS(BridgeObjectPtrTy),
         ATTRS(NoUnwind))

// bool __swift_isUniquelyReferencedOrPinnedNonObjC_nonNull_bridgeObject(
//   __swift_uintptr_t bits);
FUNCTION(IsUniquelyReferencedOrPinnedNonObjC_nonNull_bridgeObject,
         _swift_isUniquelyReferencedOrPinnedNonObjC_nonNull_bridgeObject,
         RuntimeCC,
         RETURNS(Int1Ty),
         ARGS(BridgeObjectPtrTy),
         ATTRS(NoUnwind))

// bool __swift_isUniquelyReferenced_native(const struct HeapObject *);
FUNCTION(IsUniquelyReferenced_native, _swift_isUniquelyReferenced_native,
         RuntimeCC,
         RETURNS(Int1Ty),
         ARGS(RefCountedPtrTy),
         ATTRS(NoUnwind))

// bool __swift_isUniquelyReferencedOrPinned_native(const struct HeapObject *);
FUNCTION(IsUniquelyReferencedOrPinned_native,
         _swift_isUniquelyReferencedOrPinned_native,
         RuntimeCC,
         RETURNS(Int1Ty),
         ARGS(RefCountedPtrTy),
         ATTRS(NoUnwind))

// bool __swift_isUniquelyReferenced_nonNull_native(const struct HeapObject *);
FUNCTION(IsUniquelyReferenced_nonNull_native,
         _swift_isUniquelyReferenced_nonNull_native,
         RuntimeCC,
         RETURNS(Int1Ty),
         ARGS(RefCountedPtrTy),
         ATTRS(NoUnwind))

// bool __swift_isUniquelyReferencedOrPinned_nonNull_native(
//   const struct HeapObject *);
FUNCTION(IsUniquelyReferencedOrPinned_nonNull_native,
         _swift_isUniquelyReferencedOrPinned_nonNull_native,
         RuntimeCC,
         RETURNS(Int1Ty),
         ARGS(RefCountedPtrTy),
         ATTRS(NoUnwind))

// void swift_unknownWeakTakeAssign(WeakReference *dest, WeakReference *src);
FUNCTION(UnknownWeakTakeAssign, swift_unknownWeakTakeAssign,RuntimeCC,
         RETURNS(VoidTy),
         ARGS(WeakReferencePtrTy, WeakReferencePtrTy),
         ATTRS(NoUnwind))

// Metadata *swift_getFunctionTypeMetadata(const void **args);
FUNCTION(GetFunctionMetadata, swift_getFunctionTypeMetadata, RuntimeCC,
         RETURNS(TypeMetadataPtrTy),
         ARGS(Int8PtrTy->getPointerTo(0)),
         ATTRS(NoUnwind, ReadNone))

// Metadata *swift_getFunctionTypeMetadata1(unsigned long flags, const void *arg0, const Metadata *resultMetadata);
FUNCTION(GetFunctionMetadata1, swift_getFunctionTypeMetadata1, RuntimeCC,
         RETURNS(TypeMetadataPtrTy),
         ARGS(SizeTy, Int8PtrTy, TypeMetadataPtrTy),
         ATTRS(NoUnwind, ReadNone))

// Metadata *swift_getFunctionTypeMetadata2(unsigned long flags, const void *arg0, const void *arg1, const Metadata *resultMetadata);
FUNCTION(GetFunctionMetadata2, swift_getFunctionTypeMetadata2, RuntimeCC,
         RETURNS(TypeMetadataPtrTy),
         ARGS(SizeTy, Int8PtrTy, Int8PtrTy, TypeMetadataPtrTy),
         ATTRS(NoUnwind, ReadNone))

// Metadata *swift_getFunctionTypeMetadata3(unsigned long flags, const void *arg0, const void *arg1, const void *arg2, const Metadata *resultMetadata);
FUNCTION(GetFunctionMetadata3, swift_getFunctionTypeMetadata3, RuntimeCC,
         RETURNS(TypeMetadataPtrTy),
         ARGS(SizeTy, Int8PtrTy, Int8PtrTy, Int8PtrTy, TypeMetadataPtrTy),
         ATTRS(NoUnwind, ReadNone))

// Metadata *swift_getForeignTypeMetadata(Metadata *nonUnique);
FUNCTION(GetForeignTypeMetadata, swift_getForeignTypeMetadata, RuntimeCC,
         RETURNS(TypeMetadataPtrTy),
         ARGS(TypeMetadataPtrTy),
         ATTRS(NoUnwind, ReadNone)) // only writes to runtime-private fields

// Metadata *swift_getGenericMetadata(GenericMetadata *pattern,
//                                    const void *arguments);
FUNCTION(GetGenericMetadata, swift_getGenericMetadata, RuntimeCC,
         RETURNS(TypeMetadataPtrTy),
         ARGS(TypeMetadataPatternPtrTy, Int8PtrTy),
         ATTRS(NoUnwind, ReadOnly))

// Metadata *swift_allocateGenericClassMetadata(GenericMetadata *pattern,
//                                              const void * const *arguments,
//                                              objc_class *superclass);
FUNCTION(AllocateGenericClassMetadata, swift_allocateGenericClassMetadata,
         RuntimeCC, RETURNS(TypeMetadataPtrTy),
         ARGS(TypeMetadataPatternPtrTy, Int8PtrPtrTy, ObjCClassPtrTy),
         ATTRS(NoUnwind))

// Metadata *swift_allocateGenericValueMetadata(GenericMetadata *pattern,
//                                              const void * const *arguments);
FUNCTION(AllocateGenericValueMetadata, swift_allocateGenericValueMetadata,
         RuntimeCC, RETURNS(TypeMetadataPtrTy),
         ARGS(TypeMetadataPatternPtrTy, Int8PtrPtrTy),
         ATTRS(NoUnwind))

// Metadata *swift_getGenericMetadata1(GenericMetadata *pattern,
//                                     const void *arg0);
FUNCTION(GetGenericMetadata1, swift_getGenericMetadata1, RuntimeCC,
         RETURNS(TypeMetadataPtrTy),
         ARGS(TypeMetadataPatternPtrTy, Int8PtrTy),
         ATTRS(NoUnwind, ReadNone))

// Metadata *swift_getGenericMetadata2(GenericMetadata *pattern,
//                                     const void *arg0, const void *arg1);
FUNCTION(GetGenericMetadata2, swift_getGenericMetadata2, RuntimeCC,
         RETURNS(TypeMetadataPtrTy),
         ARGS(TypeMetadataPatternPtrTy, Int8PtrTy, Int8PtrTy),
         ATTRS(NoUnwind, ReadNone))

// Metadata *swift_getGenericMetadata3(GenericMetadata *pattern,
//                                     const void *arg0, const void *arg1,
//                                     const void *arg2);
FUNCTION(GetGenericMetadata3, swift_getGenericMetadata3, RuntimeCC,
         RETURNS(TypeMetadataPtrTy),
         ARGS(TypeMetadataPatternPtrTy, Int8PtrTy, Int8PtrTy, Int8PtrTy),
         ATTRS(NoUnwind, ReadNone))

// Metadata *swift_getGenericMetadata4(GenericMetadata *pattern,
//                                     const void *arg0, const void *arg1,
//                                     const void *arg2, const void *arg3);
FUNCTION(GetGenericMetadata4, swift_getGenericMetadata4, RuntimeCC,
         RETURNS(TypeMetadataPtrTy),
         ARGS(TypeMetadataPatternPtrTy, Int8PtrTy, Int8PtrTy, Int8PtrTy, Int8PtrTy),
         ATTRS(NoUnwind, ReadNone))

// Metadata *swift_getMetatypeMetadata(Metadata *instanceTy);
FUNCTION(GetMetatypeMetadata, swift_getMetatypeMetadata, RuntimeCC,
         RETURNS(TypeMetadataPtrTy),
         ARGS(TypeMetadataPtrTy),
         ATTRS(NoUnwind, ReadNone))

// Metadata *swift_getExistentialMetatypeMetadata(Metadata *instanceTy);
FUNCTION(GetExistentialMetatypeMetadata,
         swift_getExistentialMetatypeMetadata, RuntimeCC,
         RETURNS(TypeMetadataPtrTy),
         ARGS(TypeMetadataPtrTy),
         ATTRS(NoUnwind, ReadNone))

// Metadata *swift_getObjCClassMetadata(objc_class *theClass);
FUNCTION(GetObjCClassMetadata, swift_getObjCClassMetadata, RuntimeCC,
         RETURNS(TypeMetadataPtrTy),
         ARGS(ObjCClassPtrTy),
         ATTRS(NoUnwind, ReadNone))

// _Bool swift_objcRespondsToSelector(id, void*);
FUNCTION(ObjCRespondsToSelector, swift_objcRespondsToSelector, C_CC,
         RETURNS(Int1Ty), ARGS(ObjCPtrTy, Int8PtrTy),
         ATTRS(NoUnwind, ReadOnly))

// Metadata *swift_getTupleTypeMetadata(size_t numElements,
//                                      Metadata * const *elts,
//                                      const char *labels,
//                                      value_witness_table_t *proposed);
FUNCTION(GetTupleMetadata, swift_getTupleTypeMetadata, RuntimeCC,
         RETURNS(TypeMetadataPtrTy),
         ARGS(SizeTy, TypeMetadataPtrTy->getPointerTo(0),
              Int8PtrTy, WitnessTablePtrTy),
         ATTRS(NoUnwind, ReadOnly))

// Metadata *swift_getTupleTypeMetadata2(Metadata *elt0, Metadata *elt1,
//                                       const char *labels,
//                                       value_witness_table_t *proposed);
FUNCTION(GetTupleMetadata2, swift_getTupleTypeMetadata2, RuntimeCC,
         RETURNS(TypeMetadataPtrTy),
         ARGS(TypeMetadataPtrTy, TypeMetadataPtrTy,
              Int8PtrTy, WitnessTablePtrTy),
         ATTRS(NoUnwind, ReadOnly))

// Metadata *swift_getTupleTypeMetadata3(Metadata *elt0, Metadata *elt1,
//                                       Metadata *elt2, const char *labels,
//                                       value_witness_table_t *proposed);
FUNCTION(GetTupleMetadata3, swift_getTupleTypeMetadata3, RuntimeCC,
         RETURNS(TypeMetadataPtrTy),
         ARGS(TypeMetadataPtrTy, TypeMetadataPtrTy, TypeMetadataPtrTy,
              Int8PtrTy, WitnessTablePtrTy),
         ATTRS(NoUnwind, ReadOnly))

// Metadata *swift_getExistentialTypeMetadata(size_t numProtocols,
//                              const protocol_descriptor_t * const *protocols);
FUNCTION(GetExistentialMetadata,
         swift_getExistentialTypeMetadata, RuntimeCC,
         RETURNS(TypeMetadataPtrTy),
         ARGS(SizeTy,
              ProtocolDescriptorPtrTy->getPointerTo()),
         ATTRS(NoUnwind, ReadOnly))

// const char *swift_getGenericClassObjCName(Metadata *self,
//                                           const char *basename);
FUNCTION(GetGenericClassObjCName,
         swift_getGenericClassObjCName, RuntimeCC,
         RETURNS(Int8PtrTy),
         ARGS(TypeMetadataPtrTy, Int8PtrTy),
         ATTRS(NoUnwind))

// struct FieldInfo { size_t Size; size_t AlignMask; };
// void swift_initClassMetadata_UniversalStrategy(Metadata *self,
//                                                Metadata *super,
//                                                size_t numFields,
//                                                const FieldInfo *fields,
//                                                size_t *fieldOffsets);
FUNCTION(InitClassMetadataUniversal,
         swift_initClassMetadata_UniversalStrategy, RuntimeCC,
         RETURNS(VoidTy),
         ARGS(TypeMetadataPtrTy, TypeMetadataPtrTy, SizeTy,
              SizeTy->getPointerTo(),
              SizeTy->getPointerTo()),
         ATTRS(NoUnwind))

// void swift_initStructMetadata_UniversalStrategy(size_t numFields,
//                                                 Metadata * const *fieldTypes,
//                                                 size_t *fieldOffsets,
//                                              value_witness_table_t *vwtable);
FUNCTION(InitStructMetadataUniversal,
         swift_initStructMetadata_UniversalStrategy, RuntimeCC,
         RETURNS(VoidTy),
         ARGS(SizeTy, TypeMetadataPtrTy->getPointerTo(),
              SizeTy->getPointerTo(), WitnessTablePtrTy),
         ATTRS(NoUnwind))

// void swift_initEnumValueWitnessTableSinglePayload(value_witness_table_t *vwt,
//                                                   Metadata *payload,
//                                                   unsigned num_empty_cases);
FUNCTION(InitEnumValueWitnessTableSinglePayload,
         swift_initEnumValueWitnessTableSinglePayload,
         RuntimeCC,
         RETURNS(VoidTy),
         ARGS(WitnessTablePtrTy, TypeMetadataPtrTy, Int32Ty),
         ATTRS(NoUnwind))

// void swift_initEnumMetadataMultiPayload(value_witness_table_t *vwt,
//                                         Metadata *enumType,
//                                         size_t numPayloads,
//                                         Metadata * const *payloadTypes);
FUNCTION(InitEnumMetadataMultiPayload,
         swift_initEnumMetadataMultiPayload,
         RuntimeCC,
         RETURNS(VoidTy),
         ARGS(WitnessTablePtrTy, TypeMetadataPtrTy, SizeTy,
              TypeMetadataPtrTy->getPointerTo(0)),
         ATTRS(NoUnwind))

// int swift_getEnumCaseSinglePayload(opaque_t *obj, Metadata *payload,
//                                    unsigned num_empty_cases);
FUNCTION(GetEnumCaseSinglePayload,
         swift_getEnumCaseSinglePayload,
         RuntimeCC,
         RETURNS(Int32Ty),
         ARGS(OpaquePtrTy, TypeMetadataPtrTy, Int32Ty),
         ATTRS(NoUnwind, ReadOnly))

// int swift_getEnumCaseMultiPayload(opaque_t *obj, Metadata *enumTy);
FUNCTION(GetEnumCaseMultiPayload,
         swift_getEnumCaseMultiPayload,
         RuntimeCC,
         RETURNS(Int32Ty),
         ARGS(OpaquePtrTy, TypeMetadataPtrTy),
         ATTRS(NoUnwind, ReadOnly))

// void swift_storeEnumTagSinglePayload(opaque_t *obj, Metadata *payload,
//                                      int case_index,
//                                      unsigned num_empty_cases);
FUNCTION(StoreEnumTagSinglePayload,
         swift_storeEnumTagSinglePayload,
         RuntimeCC,
         RETURNS(VoidTy),
         ARGS(OpaquePtrTy, TypeMetadataPtrTy, Int32Ty, Int32Ty),
         ATTRS(NoUnwind))

// void swift_storeEnumTagMultiPayload(opaque_t *obj, Metadata *enumTy,
//                                     int case_index);
FUNCTION(StoreEnumTagMultiPayload,
         swift_storeEnumTagMultiPayload,
         RuntimeCC,
         RETURNS(VoidTy),
         ARGS(OpaquePtrTy, TypeMetadataPtrTy, Int32Ty),
         ATTRS(NoUnwind))

// Class object_getClass(id object);
//
// This is readonly instead of readnone because isa-rewriting can have
// a noticeable effect.
FUNCTION(GetObjectClass, object_getClass, C_CC,
         RETURNS(ObjCClassPtrTy),
         ARGS(ObjCPtrTy),
         ATTRS(NoUnwind, ReadOnly))

// Metadata *swift_getObjectType(id object);
//
// Since this is intended to look through dynamic subclasses, it's
// invariant across reasonable isa-rewriting schemes and therefore can
// be readnone.
FUNCTION(GetObjectType, swift_getObjectType, RuntimeCC,
         RETURNS(TypeMetadataPtrTy),
         ARGS(ObjCPtrTy),
         ATTRS(NoUnwind, ReadNone))

// Metadata *swift_getDynamicType(opaque_t *obj, Metadata *self);
FUNCTION(GetDynamicType, swift_getDynamicType, RuntimeCC,
         RETURNS(TypeMetadataPtrTy),
         ARGS(OpaquePtrTy, TypeMetadataPtrTy),
         ATTRS(NoUnwind, ReadOnly))

// void *swift_dynamicCastClass(void*, void*);
FUNCTION(DynamicCastClass, swift_dynamicCastClass, RuntimeCC,
         RETURNS(Int8PtrTy),
         ARGS(Int8PtrTy, Int8PtrTy),
         ATTRS(NoUnwind, ReadOnly))

// void *swift_dynamicCastClassUnconditional(void*, void*);
FUNCTION(DynamicCastClassUnconditional, swift_dynamicCastClassUnconditional,
         RuntimeCC,
         RETURNS(Int8PtrTy),
         ARGS(Int8PtrTy, Int8PtrTy),
         ATTRS(NoUnwind, ReadOnly))

// void *swift_dynamicCastObjCClass(void*, void*);
FUNCTION(DynamicCastObjCClass, swift_dynamicCastObjCClass, RuntimeCC,
         RETURNS(Int8PtrTy),
         ARGS(Int8PtrTy, Int8PtrTy),
         ATTRS(NoUnwind, ReadOnly))

// void *swift_dynamicCastObjCClassUnconditional(void*, void*);
FUNCTION(DynamicCastObjCClassUnconditional,
         swift_dynamicCastObjCClassUnconditional, RuntimeCC,
         RETURNS(Int8PtrTy),
         ARGS(Int8PtrTy, Int8PtrTy),
         ATTRS(NoUnwind, ReadOnly))

// void *swift_dynamicCastUnknownClass(void*, void*);
FUNCTION(DynamicCastUnknownClass, swift_dynamicCastUnknownClass, RuntimeCC,
         RETURNS(Int8PtrTy),
         ARGS(Int8PtrTy, Int8PtrTy),
         ATTRS(NoUnwind, ReadOnly))

// void *swift_dynamicCastUnknownClassUnconditional(void*, void*);
FUNCTION(DynamicCastUnknownClassUnconditional,
         swift_dynamicCastUnknownClassUnconditional, RuntimeCC,
         RETURNS(Int8PtrTy),
         ARGS(Int8PtrTy, Int8PtrTy),
         ATTRS(NoUnwind, ReadOnly))

// type *swift_dynamicCastMetatype(type*, type*);
FUNCTION(DynamicCastMetatype, swift_dynamicCastMetatype, RuntimeCC,
         RETURNS(TypeMetadataPtrTy),
         ARGS(TypeMetadataPtrTy, TypeMetadataPtrTy),
         ATTRS(NoUnwind, ReadOnly))

// type *swift_dynamicCastMetatypeUnconditional(type*, type*);
FUNCTION(DynamicCastMetatypeUnconditional,
         swift_dynamicCastMetatypeUnconditional, RuntimeCC,
         RETURNS(TypeMetadataPtrTy),
         ARGS(TypeMetadataPtrTy, TypeMetadataPtrTy),
         ATTRS(NoUnwind, ReadOnly))

// objc_class *swift_dynamicCastObjCClassMetatype(objc_class*, objc_class*);
FUNCTION(DynamicCastObjCClassMetatype, swift_dynamicCastObjCClassMetatype,
         RuntimeCC,
         RETURNS(ObjCClassPtrTy),
         ARGS(ObjCClassPtrTy, ObjCClassPtrTy),
         ATTRS(NoUnwind, ReadOnly))

// objc_class *swift_dynamicCastObjCClassMetatypeUnconditional(objc_class*, objc_class*);
FUNCTION(DynamicCastObjCClassMetatypeUnconditional,
         swift_dynamicCastObjCClassMetatypeUnconditional, RuntimeCC,
         RETURNS(ObjCClassPtrTy),
         ARGS(ObjCClassPtrTy, ObjCClassPtrTy),
         ATTRS(NoUnwind, ReadOnly))

// bool swift_dynamicCast(opaque*, opaque*, type*, type*, size_t);
FUNCTION(DynamicCast, swift_dynamicCast, RuntimeCC,
         RETURNS(Int1Ty),
         ARGS(OpaquePtrTy, OpaquePtrTy, TypeMetadataPtrTy, TypeMetadataPtrTy,
              SizeTy),
         ATTRS(NoUnwind, ReadOnly))

// type* swift_dynamicCastTypeToObjCProtocolUnconditional(type* object,
//                                               size_t numProtocols,
//                                               Protocol * const *protocols);
FUNCTION(DynamicCastTypeToObjCProtocolUnconditional,
         swift_dynamicCastTypeToObjCProtocolUnconditional, RuntimeCC,
         RETURNS(TypeMetadataPtrTy),
         ARGS(TypeMetadataPtrTy, SizeTy, Int8PtrPtrTy),
         ATTRS(NoUnwind))

// type* swift_dynamicCastTypeToObjCProtocolConditional(type* object,
//                                             size_t numProtocols,
//                                             Protocol * const *protocols);
FUNCTION(DynamicCastTypeToObjCProtocolConditional,
         swift_dynamicCastTypeToObjCProtocolConditional, RuntimeCC,
         RETURNS(TypeMetadataPtrTy),
         ARGS(TypeMetadataPtrTy, SizeTy, Int8PtrPtrTy),
         ATTRS(NoUnwind))

// id swift_dynamicCastObjCProtocolUnconditional(id object,
//                                               size_t numProtocols,
//                                               Protocol * const *protocols);
FUNCTION(DynamicCastObjCProtocolUnconditional,
         swift_dynamicCastObjCProtocolUnconditional, RuntimeCC,
         RETURNS(ObjCPtrTy),
         ARGS(ObjCPtrTy, SizeTy, Int8PtrPtrTy),
         ATTRS(NoUnwind))

// id swift_dynamicCastObjCProtocolConditional(id object,
//                                             size_t numProtocols,
//                                             Protocol * const *protocols);
FUNCTION(DynamicCastObjCProtocolConditional,
         swift_dynamicCastObjCProtocolConditional, RuntimeCC,
         RETURNS(ObjCPtrTy),
         ARGS(ObjCPtrTy, SizeTy, Int8PtrPtrTy),
         ATTRS(NoUnwind))

// id swift_dynamicCastMetatypeToObjectUnconditional(type *type);
FUNCTION(DynamicCastMetatypeToObjectUnconditional,
         swift_dynamicCastMetatypeToObjectUnconditional, RuntimeCC,
         RETURNS(ObjCPtrTy),
         ARGS(TypeMetadataPtrTy),
         ATTRS(NoUnwind, ReadNone))

// id swift_dynamicCastMetatypeToObjectConditional(type *type);
FUNCTION(DynamicCastMetatypeToObjectConditional,
         swift_dynamicCastMetatypeToObjectConditional, RuntimeCC,
         RETURNS(ObjCPtrTy),
         ARGS(TypeMetadataPtrTy),
         ATTRS(NoUnwind, ReadNone))

// witness_table* swift_conformsToProtocol(type*, protocol*);
FUNCTION(ConformsToProtocol,
         swift_conformsToProtocol, RuntimeCC,
         RETURNS(WitnessTablePtrTy),
         ARGS(TypeMetadataPtrTy, ProtocolDescriptorPtrTy),
         ATTRS(NoUnwind, ReadNone))

// void swift_once(swift_once_t *predicate,
//                 void (*function_code)(RefCounted*));
FUNCTION(Once, swift_once, RuntimeCC,
         RETURNS(VoidTy),
         ARGS(OnceTy->getPointerTo(), Int8PtrTy),
         ATTRS())

// void swift_registerProtocolConformances(const ProtocolConformanceRecord *begin,
//                                         const ProtocolConformanceRecord *end)
FUNCTION(RegisterProtocolConformances,
         swift_registerProtocolConformances, RuntimeCC,
         RETURNS(VoidTy),
         ARGS(ProtocolConformanceRecordPtrTy, ProtocolConformanceRecordPtrTy),
         ATTRS(NoUnwind))

FUNCTION(InstantiateObjCClass, swift_instantiateObjCClass, RuntimeCC,
         RETURNS(VoidTy),
         ARGS(TypeMetadataPtrTy),
         ATTRS(NoUnwind))
FUNCTION(GetInitializedObjCClass, swift_getInitializedObjCClass, RuntimeCC,
         RETURNS(ObjCClassPtrTy),
         ARGS(ObjCClassPtrTy),
         ATTRS(NoUnwind))
FUNCTION(ObjCRetain, objc_retain, C_CC,
         RETURNS(ObjCPtrTy), ARGS(ObjCPtrTy), ATTRS(NoUnwind))
FUNCTION(ObjCRelease, objc_release, C_CC,
         RETURNS(VoidTy), ARGS(ObjCPtrTy), ATTRS(NoUnwind))
FUNCTION(ObjCAutorelease, objc_autorelease, C_CC,
         RETURNS(ObjCPtrTy), ARGS(ObjCPtrTy), ATTRS(NoUnwind))
FUNCTION(ObjCRetainAutoreleasedReturnValue,
         objc_retainAutoreleasedReturnValue, C_CC,
         RETURNS(Int8PtrTy), ARGS(Int8PtrTy), ATTRS(NoUnwind))
FUNCTION(ObjCAutoreleaseReturnValue, objc_autoreleaseReturnValue, C_CC,
         RETURNS(ObjCPtrTy), ARGS(ObjCPtrTy), ATTRS(NoUnwind))
FUNCTION(ObjCMsgSend, objc_msgSend, C_CC,
         RETURNS(VoidTy), NO_ARGS, NO_ATTRS)
FUNCTION(ObjCMsgSendStret, objc_msgSend_stret, C_CC,
         RETURNS(VoidTy), NO_ARGS, NO_ATTRS)
FUNCTION(ObjCMsgSendSuper, objc_msgSendSuper, C_CC,
         RETURNS(VoidTy), NO_ARGS, NO_ATTRS)
FUNCTION(ObjCMsgSendSuperStret, objc_msgSendSuper_stret, C_CC,
         RETURNS(VoidTy), NO_ARGS, NO_ATTRS)
FUNCTION(ObjCMsgSendSuper2, objc_msgSendSuper2, C_CC,
         RETURNS(VoidTy), NO_ARGS, NO_ATTRS)
FUNCTION(ObjCMsgSendSuperStret2, objc_msgSendSuper2_stret, C_CC,
         RETURNS(VoidTy), NO_ARGS, NO_ATTRS)
FUNCTION(ObjCSelRegisterName, sel_registerName, C_CC,
         RETURNS(ObjCSELTy), ARGS(Int8PtrTy), ATTRS(NoUnwind, ReadNone))
FUNCTION(ClassReplaceMethod, class_replaceMethod, C_CC,
         RETURNS(Int8PtrTy),
         ARGS(ObjCClassPtrTy, Int8PtrTy, Int8PtrTy, Int8PtrTy),
         ATTRS(NoUnwind))
FUNCTION(ClassAddProtocol, class_addProtocol, C_CC,
         RETURNS(VoidTy),
         ARGS(ObjCClassPtrTy, Int8PtrTy),
         ATTRS(NoUnwind))
FUNCTION(ObjCGetClass, objc_getClass, C_CC,
         RETURNS(ObjCClassPtrTy),
         ARGS(Int8PtrTy),
         ATTRS(NoUnwind))
FUNCTION(ObjCGetMetaClass, objc_getMetaClass, C_CC,
         RETURNS(ObjCClassPtrTy),
         ARGS(Int8PtrTy),
         ATTRS(NoUnwind))
FUNCTION(ObjCClassGetName, class_getName, C_CC,
         RETURNS(Int8PtrTy),
         ARGS(ObjCClassPtrTy),
         ATTRS(NoUnwind))

FUNCTION(GetObjCProtocol, objc_getProtocol, C_CC,
         RETURNS(ProtocolDescriptorPtrTy),
         ARGS(Int8PtrTy),
         ATTRS(NoUnwind))
FUNCTION(AllocateObjCProtocol, objc_allocateProtocol, C_CC,
         RETURNS(ProtocolDescriptorPtrTy),
         ARGS(Int8PtrTy),
         ATTRS(NoUnwind))
FUNCTION(RegisterObjCProtocol, objc_registerProtocol, C_CC,
         RETURNS(VoidTy),
         ARGS(ProtocolDescriptorPtrTy),
         ATTRS(NoUnwind))
FUNCTION(ProtocolAddMethodDescription, protocol_addMethodDescription, C_CC,
         RETURNS(VoidTy),
         ARGS(ProtocolDescriptorPtrTy, Int8PtrTy, Int8PtrTy,
              ObjCBoolTy, ObjCBoolTy),
         ATTRS(NoUnwind))
FUNCTION(ProtocolAddProtocol, protocol_addProtocol, C_CC,
         RETURNS(VoidTy),
         ARGS(ProtocolDescriptorPtrTy, ProtocolDescriptorPtrTy),
         ATTRS(NoUnwind))

// void *_Block_copy(void *block);
FUNCTION(BlockCopy, _Block_copy, C_CC,
         RETURNS(ObjCBlockPtrTy),
         ARGS(ObjCBlockPtrTy),
         NO_ATTRS)
// void _Block_release(void *block);
FUNCTION(BlockRelease, _Block_release, C_CC,
         RETURNS(VoidTy),
         ARGS(ObjCBlockPtrTy),
         ATTRS(NoUnwind))

// void swift_reportMissingMethod();
FUNCTION(DeadMethodError, swift_reportMissingMethod, C_CC,
        RETURNS(VoidTy),
        ARGS(),
        ATTRS(NoUnwind))

FUNCTION(AllocError, swift_allocError, C_CC,
         RETURNS(ErrorPtrTy, OpaquePtrTy),
         ARGS(TypeMetadataPtrTy, WitnessTablePtrTy),
         ATTRS(NoUnwind))
FUNCTION(DeallocError, swift_deallocError, C_CC,
         RETURNS(VoidTy),
         ARGS(ErrorPtrTy, TypeMetadataPtrTy),
         ATTRS(NoUnwind))
FUNCTION(GetErrorValue, swift_getErrorValue, C_CC,
         RETURNS(VoidTy),
         ARGS(ErrorPtrTy, Int8PtrPtrTy, OpenedErrorTriplePtrTy),
         ATTRS(NoUnwind))

#undef RETURNS
#undef ARGS
#undef ATTRS
#undef NO_ARGS
#undef NO_ATTRS
#undef FUNCTION
#undef FUNCTION_NAME