Files
swift-mirror/lib/Serialization/SILFormat.h
Doug Gregor f267f62f65 [SILGen] Consistently use SIL asmname for foreign function/variable references
Whenever we have a reference to a foreign function/variable in SIL, use
a mangled name at the SIL level with the C name in the asmname
attribute. The expands the use of asmname to three kinds of cases that
it hadn't been used in yet:

* Declarations imported from C headers/modules
* @_cdecl @implementation of C headers/modules
* @_cdecl functions in general

Some code within the SIL pipeline makes assumptions that the C names of
various runtime functions are reflected at the SIL level. For example,
the linking of Embedded Swift runtime functions is done by-name, and
some of those names refer to C functions (like `swift_retain`) and
others refer to Swift functions that use `@_silgen_name` (like
`swift_getDefaultExecutor`). Extend the serialized module format to
include a table that maps from the asmname of functions/variables over
to their mangled names, so we can look up functions by asmname if we
want. These tables could also be used for checking for declarations
that conflict on their asmname in the future. Right now, we leave it
up to LLVM or the linker to do the checking.

`@_silgen_name` is not affected by these changes, nor should it be:
that hidden feature is specifically meant to affect the name at the
SIL level.

The vast majority of test changes are SIL tests where we had expected
to see the C/C++/Objective-C names in the tests for references to
foreign entities, and now we see Swift mangled names (ending in To).
The SIL declarations themselves will have a corresponding asmname.

Notably, the IRGen tests have *not* changed, because we generally the
same IR as before. It's only the modeling at the SIL lever that has
changed.

Another part of rdar://137014448.
2025-10-29 19:35:55 -07:00

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23 KiB
C++

//===--- SILFormat.h - The internals of serialized SILs ---------*- C++ -*-===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
///
/// \file Contains various constants and helper types to deal with serialized
/// SILs.
///
//===----------------------------------------------------------------------===//
#ifndef SWIFT_SERIALIZATION_SILFORMAT_H
#define SWIFT_SERIALIZATION_SILFORMAT_H
#include "ModuleFormat.h"
namespace swift {
namespace serialization {
using ValueID = DeclID;
using ValueIDField = DeclIDField;
using SILInstOpCodeField = BCFixed<8>;
using SILTypeCategoryField = BCFixed<2>;
using SILValueOwnershipField = BCFixed<2>;
enum SILStringEncoding : uint8_t {
SIL_UTF8,
SIL_OBJC_SELECTOR,
SIL_BYTES,
SIL_UTF8_OSLOG
};
enum SILLinkageEncoding : uint8_t {
SIL_LINKAGE_PUBLIC,
SIL_LINKAGE_PUBLIC_NON_ABI,
SIL_LINKAGE_PACKAGE,
SIL_LINKAGE_PACKAGE_NON_ABI,
SIL_LINKAGE_HIDDEN,
SIL_LINKAGE_SHARED,
SIL_LINKAGE_PRIVATE,
SIL_LINKAGE_PUBLIC_EXTERNAL,
SIL_LINKAGE_PACKAGE_EXTERNAL,
SIL_LINKAGE_HIDDEN_EXTERNAL,
};
using SILLinkageField = BCFixed<4>;
enum SILVTableEntryKindEncoding : uint8_t {
SIL_VTABLE_ENTRY_NORMAL,
SIL_VTABLE_ENTRY_INHERITED,
SIL_VTABLE_ENTRY_OVERRIDE,
};
using SILVTableEntryKindField = BCFixed<2>;
enum CastConsumptionKindEncoding : uint8_t {
SIL_CAST_CONSUMPTION_TAKE_ALWAYS,
SIL_CAST_CONSUMPTION_TAKE_ON_SUCCESS,
SIL_CAST_CONSUMPTION_COPY_ON_SUCCESS,
SIL_CAST_CONSUMPTION_BORROW_ALWAYS,
};
enum class KeyPathComponentKindEncoding : uint8_t {
StoredProperty,
TupleElement,
GettableProperty,
SettableProperty,
OptionalChain,
OptionalForce,
OptionalWrap,
Trivial,
};
enum class KeyPathComputedComponentIdKindEncoding : uint8_t {
Property,
Function,
DeclRef,
};
enum class ExtraStringFlavor : uint8_t {
/// asmname attributes
AsmName,
/// section attribute
Section,
};
/// The record types within the "sil-index" block.
///
/// \sa SIL_INDEX_BLOCK_ID
namespace sil_index_block {
// clang-format off
// These IDs must \em not be renumbered or reordered without incrementing
// the module version.
enum RecordKind {
SIL_FUNC_NAMES = 1,
SIL_FUNC_OFFSETS,
SIL_VTABLE_NAMES,
SIL_VTABLE_OFFSETS,
SIL_MOVEONLYDEINIT_NAMES,
SIL_MOVEONLYDEINIT_OFFSETS,
SIL_GLOBALVAR_NAMES,
SIL_GLOBALVAR_OFFSETS,
SIL_WITNESS_TABLE_NAMES,
SIL_WITNESS_TABLE_OFFSETS,
SIL_DEFAULT_WITNESS_TABLE_NAMES,
SIL_DEFAULT_WITNESS_TABLE_OFFSETS,
SIL_DEFAULT_OVERRIDE_TABLE_NAMES,
SIL_DEFAULT_OVERRIDE_TABLE_OFFSETS,
SIL_PROPERTY_OFFSETS,
SIL_DIFFERENTIABILITY_WITNESS_NAMES,
SIL_DIFFERENTIABILITY_WITNESS_OFFSETS,
SIL_ASM_NAMES,
};
using ListLayout = BCGenericRecordLayout<
BCFixed<5>, // record ID
BCVBR<16>, // table offset within the blob
BCBlob // map from identifier strings to IDs.
>;
using OffsetLayout = BCGenericRecordLayout<
BCFixed<5>, // record ID
BCArray<BitOffsetField>
>;
// clang-format on
}
/// The record types within the "sil" block.
///
/// \sa SIL_BLOCK_ID
namespace sil_block {
// clang-format off
// These IDs must \em not be renumbered or reordered without incrementing
// the module version.
enum RecordKind : uint8_t {
SIL_FUNCTION = 1,
SIL_BASIC_BLOCK,
SIL_ONE_VALUE_ONE_OPERAND,
SIL_ONE_TYPE,
SIL_ONE_OPERAND,
SIL_ONE_TYPE_ONE_OPERAND,
SIL_ONE_TYPE_VALUES,
SIL_ONE_TYPE_OWNERSHIP_VALUES,
SIL_ONE_TYPE_VALUES_CATEGORIES,
SIL_TWO_OPERANDS,
SIL_TAIL_ADDR,
SIL_INST_APPLY,
SIL_INST_NO_OPERAND,
SIL_VTABLE,
SIL_VTABLE_ENTRY,
SIL_GLOBALVAR,
SIL_INIT_EXISTENTIAL,
SIL_WITNESS_TABLE,
SIL_WITNESS_METHOD_ENTRY,
SIL_WITNESS_BASE_ENTRY,
SIL_WITNESS_ASSOC_PROTOCOL,
SIL_WITNESS_ASSOC_ENTRY,
SIL_WITNESS_CONDITIONAL_CONFORMANCE,
SIL_DEFAULT_WITNESS_TABLE,
SIL_DEFAULT_WITNESS_TABLE_NO_ENTRY,
SIL_DEFAULT_OVERRIDE_TABLE,
SIL_DEFAULT_OVERRIDE_TABLE_ENTRY,
SIL_DIFFERENTIABILITY_WITNESS,
SIL_INST_WITNESS_METHOD,
SIL_SPECIALIZE_ATTR,
SIL_ARG_EFFECTS_ATTR,
SIL_PROPERTY,
SIL_ONE_OPERAND_EXTRA_ATTR,
SIL_ONE_TYPE_ONE_OPERAND_EXTRA_ATTR,
SIL_TWO_OPERANDS_EXTRA_ATTR,
SIL_INST_DIFFERENTIABLE_FUNCTION,
SIL_INST_LINEAR_FUNCTION,
SIL_INST_DIFFERENTIABLE_FUNCTION_EXTRACT,
SIL_INST_LINEAR_FUNCTION_EXTRACT,
SIL_INST_INCREMENT_PROFILER_COUNTER,
SIL_MOVEONLY_DEINIT,
SIL_INST_HAS_SYMBOL,
SIL_OPEN_PACK_ELEMENT,
SIL_PACK_ELEMENT_GET,
SIL_PACK_ELEMENT_SET,
SIL_TYPE_VALUE,
SIL_THUNK,
SIL_VALUES,
SIL_DEBUG_SCOPE,
SIL_DEBUG_SCOPE_REF,
SIL_SOURCE_LOC,
SIL_SOURCE_LOC_REF,
SIL_DEBUG_VALUE_DELIMITER,
SIL_DEBUG_VALUE,
SIL_EXTRA_STRING,
};
using SILInstNoOperandLayout = BCRecordLayout<
SIL_INST_NO_OPERAND,
SILInstOpCodeField
>;
using VTableLayout = BCRecordLayout<
SIL_VTABLE,
DeclIDField, // Class Decl
BCFixed<2> // SerializedKind.
>;
using VTableEntryLayout = BCRecordLayout<
SIL_VTABLE_ENTRY,
DeclIDField, // SILFunction name
SILVTableEntryKindField, // Kind
BCFixed<1>, // NonOverridden
BCArray<ValueIDField> // SILDeclRef
>;
using MoveOnlyDeinitLayout = BCRecordLayout<
SIL_MOVEONLY_DEINIT,
DeclIDField, // Class Decl
DeclIDField, // SILFunction name
BCFixed<2> // SerializedKind.
>;
using PropertyLayout = BCRecordLayout<
SIL_PROPERTY,
DeclIDField, // Property decl
BCFixed<2>, // SerializedKind
BCArray<ValueIDField> // Encoded key path component
// Any substitutions or conformances required for the key path component
// follow.
>;
using WitnessTableLayout = BCRecordLayout<
SIL_WITNESS_TABLE,
SILLinkageField, // Linkage
BCFixed<1>, // Is this a declaration. We represent this separately
// from whether or not we have entries since we can
// have empty witness tables.
BCFixed<1>, // Is this a specialized witness table.
BCFixed<2>, // SerializedKind.
ProtocolConformanceIDField // conformance
// Witness table entries will be serialized after.
>;
using WitnessMethodEntryLayout = BCRecordLayout<
SIL_WITNESS_METHOD_ENTRY,
DeclIDField, // SILFunction name
BCArray<ValueIDField> // SILDeclRef
>;
using WitnessBaseEntryLayout = BCRecordLayout<
SIL_WITNESS_BASE_ENTRY,
DeclIDField, // ID of protocol decl
ProtocolConformanceIDField // ID of conformance
>;
using WitnessAssocProtocolLayout = BCRecordLayout<
SIL_WITNESS_ASSOC_PROTOCOL,
TypeIDField, // ID of requirement subject type
ProtocolConformanceIDField
>;
using WitnessAssocEntryLayout = BCRecordLayout<
SIL_WITNESS_ASSOC_ENTRY,
DeclIDField, // ID of AssociatedTypeDecl
TypeIDField
>;
using WitnessConditionalConformanceLayout = BCRecordLayout<
SIL_WITNESS_CONDITIONAL_CONFORMANCE,
ProtocolConformanceIDField // ID of conformance
>;
using DefaultWitnessTableLayout = BCRecordLayout<
SIL_DEFAULT_WITNESS_TABLE,
DeclIDField, // ID of ProtocolDecl
SILLinkageField // Linkage
// Default witness table entries will be serialized after.
>;
using DefaultWitnessTableNoEntryLayout = BCRecordLayout<
SIL_DEFAULT_WITNESS_TABLE_NO_ENTRY
>;
using DefaultOverrideTableLayout = BCRecordLayout<
SIL_DEFAULT_OVERRIDE_TABLE,
DeclIDField, // ID of ClassDecl
SILLinkageField // Linkage
// Default override table entries will be serialized after.
>;
using DefaultOverrideTableEntryLayout = BCRecordLayout<
SIL_DEFAULT_OVERRIDE_TABLE_ENTRY,
DeclIDField, // SILFunction name
BCArray<ValueIDField> // SILDeclRef(method) + SILDeclRef(original)
>;
using SILGlobalVarLayout = BCRecordLayout<
SIL_GLOBALVAR,
SILLinkageField,
BCFixed<2>, // serialized
BCFixed<1>, // Is this a declaration.
BCFixed<1>, // Is this a let variable.
BCFixed<1>, // Is this marked as "used".
BCVBR<8>, // # of trailing records
TypeIDField,
DeclIDField,
ModuleIDField // Parent ModuleDecl *
>;
using DifferentiabilityWitnessLayout = BCRecordLayout<
SIL_DIFFERENTIABILITY_WITNESS,
DeclIDField, // Original function name
SILLinkageField, // Linkage
BCFixed<1>, // Is declaration?
BCFixed<2>, // Is serialized?
DifferentiabilityKindField, // Differentiability kind
GenericSignatureIDField, // Derivative function generic signature
DeclIDField, // JVP function name
DeclIDField, // VJP function name
BCVBR<8>, // Number of parameter indices
BCVBR<8>, // Number of result indices
BCArray<ValueIDField> // Parameter and result indices
>;
using SILDebugScopeRefLayout = BCRecordLayout<
SIL_DEBUG_SCOPE_REF,
ValueIDField
>;
using SILDebugScopeLayout = BCRecordLayout<
SIL_DEBUG_SCOPE,
BCFixed<1>,
ValueIDField, /// Parent.
ValueIDField, /// InlinedCallSite.
ValueIDField, /// SourceLoc Row.
ValueIDField, /// Column.
ValueIDField, /// FName.
TypeIDField,
SILTypeCategoryField
>;
using SILDebugValueLayout = BCRecordLayout<
SIL_DEBUG_VALUE,
SILTypeCategoryField, /// operand type category
SILTypeCategoryField, /// debug var type category
BCFixed<11>, /// poison, movableValueDebuginfo, trace,
/// hasDebugVar, isLet, isDenseMapSingleton(two
/// bits), hasSource, hasLoc, hasExpr
BCArray<ValueIDField> /// operand info: operand, type, debug var info:
/// name, argno, optional stuff: typeid
>;
using DebugValueDelimiterLayout = BCRecordLayout<
SIL_DEBUG_VALUE_DELIMITER
>;
using SourceLocLayout = BCRecordLayout<
SIL_SOURCE_LOC,
ValueIDField,
ValueIDField,
ValueIDField,
BCFixed<3>, /// LocationKind
BCFixed<1> /// Implicit
>;
using SourceLocRefLayout = BCRecordLayout<
SIL_SOURCE_LOC_REF,
ValueIDField,
BCFixed<3>,
BCFixed<1> /// Implicit
>;
using SILFunctionLayout =
BCRecordLayout<SIL_FUNCTION, SILLinkageField,
BCFixed<1>, // transparent
BCFixed<2>, // serializedKind
BCFixed<3>, // thunk kind
BCFixed<1>, // without_actually_escaping
BCFixed<3>, // specialPurpose
BCFixed<2>, // inlineStrategy
BCFixed<2>, // optimizationMode
BCFixed<3>, // perfConstraints
BCFixed<2>, // classSubclassScope
BCFixed<1>, // hasCReferences
BCFixed<1>, // markedAsUsed
BCFixed<3>, // side effect info.
BCVBR<8>, // number of trailing records
BCFixed<1>, // has qualified ownership
BCFixed<1>, // force weak linking
BC_AVAIL_TUPLE, // availability for weak linking
BCFixed<1>, // is dynamically replacable
BCFixed<1>, // exact self class
BCFixed<1>, // is distributed
BCFixed<1>, // is runtime accessible
BCFixed<1>, // are lexical lifetimes force-enabled
BCFixed<1>, // only referenced by debug info
TypeIDField, // SILFunctionType
DeclIDField, // SILFunction name or 0 (replaced function)
DeclIDField, // SILFunction name or 0 (used ad-hoc requirement witness function)
GenericSignatureIDField,
DeclIDField, // ClangNode owner
ModuleIDField, // Parent ModuleDecl *
BCArray<IdentifierIDField> // Semantics Attribute
// followed by specialize and argument effects attributes
// followed by generic param list, if any
>;
using SILSpecializeAttrLayout =
BCRecordLayout<SIL_SPECIALIZE_ATTR,
BCFixed<1>, // exported
BCFixed<1>, // specialization kind
GenericSignatureIDField, // specialized signature
DeclIDField, // Target SILFunction name or 0.
DeclIDField, // SPIGroup or 0.
DeclIDField, // SPIGroup Module name id.
BC_AVAIL_TUPLE, // Availability
BCArray<IdentifierIDField> // type erased params
>;
using SILArgEffectsAttrLayout =
BCRecordLayout<SIL_ARG_EFFECTS_ATTR,
IdentifierIDField, // argument effects string
BCVBR<8>, // argumentIndex
BCFixed<1>, // argumentIndexValid
BCFixed<1> // isDerived
>;
/// Used for additional strings that can be associated with a record,
/// written out as records that trail
using SILExtraStringLayout =
BCRecordLayout<SIL_EXTRA_STRING,
BCFixed<8>, // string flavor
BCBlob // string data
>;
// Has an optional argument list where each argument is a typed valueref.
using SILBasicBlockLayout = BCRecordLayout<
SIL_BASIC_BLOCK,
BCArray<DeclIDField> // The array contains type-value pairs.
>;
// SIL instructions with one valueref and one typed valueref.
// (store)
using SILOneValueOneOperandLayout = BCRecordLayout<
SIL_ONE_VALUE_ONE_OPERAND,
SILInstOpCodeField,
BCFixed<2>, // Optional attributes
ValueIDField,
TypeIDField,
SILTypeCategoryField,
ValueIDField
>;
// SIL instructions with one type and one typed valueref.
using SILOneTypeOneOperandLayout = BCRecordLayout<
SIL_ONE_TYPE_ONE_OPERAND,
SILInstOpCodeField,
BCFixed<2>, // Optional attribute
TypeIDField,
SILTypeCategoryField,
TypeIDField,
SILTypeCategoryField,
ValueIDField
>;
// SIL instructions that construct existential values.
using SILInitExistentialLayout = BCRecordLayout<
SIL_INIT_EXISTENTIAL,
SILInstOpCodeField, // opcode
TypeIDField, // result type
SILTypeCategoryField, // result type category
TypeIDField, // operand type
SILTypeCategoryField, // operand type category
ValueIDField, // operand id
TypeIDField, // formal concrete type
BCArray<ProtocolConformanceIDField> // protocol conformances
>;
// SIL instructions with one type and a list of values.
using SILOneTypeValuesLayout = BCRecordLayout<
SIL_ONE_TYPE_VALUES,
SILInstOpCodeField, // opcode
TypeIDField, // destType
SILTypeCategoryField, // destCategory
BCArray<ValueIDField> // operand ids
>;
// SIL instructions with one type, forwarding ownership, and a list of values.
// For OwnershipForwardingTermInst.
using SILOneTypeOwnershipValuesLayout = BCRecordLayout<
SIL_ONE_TYPE_OWNERSHIP_VALUES,
SILInstOpCodeField,
SILValueOwnershipField,
TypeIDField,
SILTypeCategoryField,
BCArray<ValueIDField>>;
using SILOneTypeValuesCategoriesLayout = BCRecordLayout<
SIL_ONE_TYPE_VALUES_CATEGORIES,
SILInstOpCodeField, // opcode
TypeIDField, // destType
SILTypeCategoryField, // destCategory
BCFixed<1>, // options
BCArray<BCFixed<32>> // operand id and categories.
>;
/// A SILInstruction without a result and N operands.
using SILValuesLayout = BCRecordLayout<
SIL_VALUES,
SILInstOpCodeField, // opcode
BCArray<BCFixed<32>> // (value, type).
>;
static_assert(sizeof(DeclID) == sizeof(ValueID) &&
sizeof(DeclID) == sizeof(TypeID) &&
"SILValuesLayout assumes that DeclID is the same as ValueID and TypeID");
enum ApplyKind : unsigned {
SIL_APPLY = 0,
SIL_PARTIAL_APPLY,
SIL_BUILTIN,
SIL_TRY_APPLY,
SIL_BEGIN_APPLY
};
using SILInstApplyLayout = BCRecordLayout<
SIL_INST_APPLY,
BCFixed<3>, // ApplyKind
BCFixed<2>, // ApplyOptions
SubstitutionMapIDField, // substitution map
TypeIDField, // callee unsubstituted type
TypeIDField, // callee substituted type
ValueIDField, // callee value
ActorIsolationField, // Caller Isolation if we have one. Unspecified otherwise.
ActorIsolationField, // Callee Isolation if we have one. Unspecified otherwise.
BCArray<ValueIDField> // a list of arguments
>;
// SIL instructions with one type. (alloc_stack)
using SILOneTypeLayout = BCRecordLayout<SIL_ONE_TYPE, SILInstOpCodeField,
BCFixed<4>, // Optional attributes
TypeIDField, SILTypeCategoryField>;
// SIL instructions with one typed valueref. (dealloc_stack, return)
using SILOneOperandLayout =
BCRecordLayout<SIL_ONE_OPERAND, SILInstOpCodeField,
BCFixed<4>, // Optional attributes
TypeIDField, SILTypeCategoryField, ValueIDField>;
using SILOneOperandExtraAttributeLayout = BCRecordLayout<
SIL_ONE_OPERAND_EXTRA_ATTR,
SILInstOpCodeField,
BCFixed<7>, // Optional attributes
TypeIDField, SILTypeCategoryField, ValueIDField
>;
// SIL instructions with one type, one typed valueref, and extra bits.
using SILOneTypeOneOperandExtraAttributeLayout =
BCRecordLayout<SIL_ONE_TYPE_ONE_OPERAND_EXTRA_ATTR, SILInstOpCodeField,
BCFixed<10>, // Optional attributes
TypeIDField, SILTypeCategoryField, TypeIDField,
SILTypeCategoryField, ValueIDField>;
// SIL instructions with two typed values.
using SILTwoOperandsLayout = BCRecordLayout<
SIL_TWO_OPERANDS,
SILInstOpCodeField,
BCFixed<2>, // Optional attributes
TypeIDField,
SILTypeCategoryField,
ValueIDField,
TypeIDField,
SILTypeCategoryField,
ValueIDField
>;
using SILTwoOperandsExtraAttributeLayout = BCRecordLayout<
SIL_TWO_OPERANDS_EXTRA_ATTR,
SILInstOpCodeField,
BCFixed<7>, // Optional attributes
TypeIDField,
SILTypeCategoryField,
ValueIDField,
TypeIDField,
SILTypeCategoryField,
ValueIDField
>;
// The pack_element_get instruction.
using SILOpenPackElementLayout = BCRecordLayout<
SIL_OPEN_PACK_ELEMENT,
GenericEnvironmentIDField,
TypeIDField,
SILTypeCategoryField,
ValueIDField
>;
// The pack_element_get instruction.
using SILPackElementGetLayout = BCRecordLayout<
SIL_PACK_ELEMENT_GET,
SILInstOpCodeField,
TypeIDField, // element type
SILTypeCategoryField, // element type category
TypeIDField, // pack type
SILTypeCategoryField, // pack type category
ValueIDField, // pack value
ValueIDField // index value
>;
// The pack_element_set instruction.
using SILPackElementSetLayout = BCRecordLayout<
SIL_PACK_ELEMENT_SET,
TypeIDField, // element type
SILTypeCategoryField, // element type category
ValueIDField, // element value
TypeIDField, // pack type
SILTypeCategoryField, // pack type category
ValueIDField, // pack value
ValueIDField // index value
>;
// The tail_addr instruction.
using SILTailAddrLayout = BCRecordLayout<
SIL_TAIL_ADDR,
SILInstOpCodeField,
TypeIDField, // Base operand
ValueIDField,
TypeIDField, // Count operand
ValueIDField,
TypeIDField // Result type
>;
using SILInstWitnessMethodLayout = BCRecordLayout<
SIL_INST_WITNESS_METHOD,
TypeIDField, // result type
SILTypeCategoryField,
BCFixed<1>, // volatile?
TypeIDField, // lookup type
SILTypeCategoryField,
TypeIDField, // Optional
SILTypeCategoryField, // opened
ValueIDField, // existential
ProtocolConformanceIDField, // conformance
BCArray<ValueIDField> // SILDeclRef
>;
using SILInstDifferentiableFunctionLayout = BCRecordLayout<
SIL_INST_DIFFERENTIABLE_FUNCTION,
BCVBR<8>, // number of function parameters
BCVBR<8>, // number of function results
BCVBR<8>, // number of differentiability parameters
BCFixed<1>, // has derivative functions?
BCArray<ValueIDField> // parameter indices and operands
>;
using SILInstLinearFunctionLayout = BCRecordLayout<
SIL_INST_LINEAR_FUNCTION,
BCVBR<8>, // number of function parameters
BCFixed<1>, // has transpose function?
BCArray<ValueIDField> // parameter indices and operands
>;
using SILInstDifferentiableFunctionExtractLayout = BCRecordLayout<
SIL_INST_DIFFERENTIABLE_FUNCTION_EXTRACT,
TypeIDField,
SILTypeCategoryField,
ValueIDField,
BCFixed<2>, // extractee
BCFixed<1>, // has explicit extractee type?
TypeIDField // explicit extractee type
>;
using SILInstLinearFunctionExtractLayout = BCRecordLayout<
SIL_INST_LINEAR_FUNCTION_EXTRACT,
TypeIDField,
SILTypeCategoryField,
ValueIDField,
BCFixed<1> // extractee
>;
using SILInstIncrementProfilerCounterLayout = BCRecordLayout<
SIL_INST_INCREMENT_PROFILER_COUNTER,
IdentifierIDField, // PGO func name
IdentifierIDField, // PGO func hash
BCVBR<8>, // counter index
BCVBR<8> // num counters
>;
using SILInstHasSymbolLayout = BCRecordLayout<
SIL_INST_HAS_SYMBOL,
ValueIDField, // decl
BCArray<IdentifierIDField> // referenced functions
>;
using SILTypeValueLayout = BCRecordLayout<
SIL_TYPE_VALUE,
TypeIDField, // Value type
SILTypeCategoryField,
TypeIDField // Generic type
>;
using SILThunkLayout = BCRecordLayout<
SIL_THUNK,
BCFixed<4>, // Kind
TypeIDField, // Input Function Type
SILTypeCategoryField, // Input Function Value Category
ValueIDField, // Input Function Value
SubstitutionMapIDField // Substitution map;
>;
// clang-format on
}
} // end namespace serialization
} // end namespace swift
#endif