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Builtins.cpp
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Builtins.cpp
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//===--- Builtins.cpp - Swift Language Builtin ASTs -----------------------===//
//
// 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 implements the interface to the Builtin APIs.
//
//===----------------------------------------------------------------------===//
#include "swift/AST/Builtins.h"
#include "swift/AST/AST.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/IR/LLVMContext.h"
#include <cstring>
#include <tuple>
using namespace swift;
struct BuiltinExtraInfoTy {
const char *Attributes;
};
static const BuiltinExtraInfoTy BuiltinExtraInfo[] = {
{0},
#define BUILTIN(Id, Name, Attrs) {Attrs},
#include "swift/AST/Builtins.def"
};
bool BuiltinInfo::isReadNone() const {
return strchr(BuiltinExtraInfo[(unsigned)ID].Attributes, 'n') != 0;
}
bool IntrinsicInfo::hasAttribute(llvm::Attribute::AttrKind Kind) const {
// FIXME: We should not be relying on the global LLVM context.
llvm::AttributeSet attrs
= llvm::Intrinsic::getAttributes(llvm::getGlobalContext(), ID);
return (attrs.hasAttribute(llvm::AttributeSet::FunctionIndex, Kind));
}
Type swift::getBuiltinType(ASTContext &Context, StringRef Name) {
// Vectors are VecNxT, where "N" is the number of elements and
// T is the element type.
if (Name.startswith("Vec")) {
Name = Name.substr(3);
StringRef::size_type xPos = Name.find('x');
if (xPos == StringRef::npos)
return Type();
unsigned numElements;
if (Name.substr(0, xPos).getAsInteger(10, numElements) ||
numElements == 0 || numElements > 1024)
return Type();
Type elementType = getBuiltinType(Context, Name.substr(xPos + 1));
if (!elementType)
return Type();
return BuiltinVectorType::get(Context, elementType, numElements);
}
if (Name == "RawPointer")
return Context.TheRawPointerType;
if (Name == "NativeObject")
return Context.TheNativeObjectType;
if (Name == "UnknownObject")
return Context.TheUnknownObjectType;
if (Name == "BridgeObject")
return Context.TheBridgeObjectType;
if (Name == "UnsafeValueBuffer")
return Context.TheUnsafeValueBufferType;
if (Name == "FPIEEE32")
return Context.TheIEEE32Type;
if (Name == "FPIEEE64")
return Context.TheIEEE64Type;
if (Name == "Word")
return BuiltinIntegerType::getWordType(Context);
// Handle 'int8' and friends.
if (Name.substr(0, 3) == "Int") {
unsigned BitWidth;
if (!Name.substr(3).getAsInteger(10, BitWidth) &&
BitWidth <= 2048 && BitWidth != 0) // Cap to prevent insane things.
return BuiltinIntegerType::get(BitWidth, Context);
}
// Target specific FP types.
if (Name == "FPIEEE16")
return Context.TheIEEE16Type;
if (Name == "FPIEEE80")
return Context.TheIEEE80Type;
if (Name == "FPIEEE128")
return Context.TheIEEE128Type;
if (Name == "FPPPC128")
return Context.ThePPC128Type;
return Type();
}
/// getBuiltinBaseName - Decode the type list of a builtin (e.g. mul_Int32) and
/// return the base name (e.g. "mul").
StringRef swift::getBuiltinBaseName(ASTContext &C, StringRef Name,
SmallVectorImpl<Type> &Types) {
// builtin-id ::= operation-id ('_' type-id)*
for (StringRef::size_type Underscore = Name.find_last_of('_');
Underscore != StringRef::npos; Underscore = Name.find_last_of('_')) {
// Check that the type parameter is well-formed and set it up for returning.
// This allows operations with underscores in them, like "icmp_eq".
Type Ty = getBuiltinType(C, Name.substr(Underscore + 1));
if (Ty.isNull()) break;
Types.push_back(Ty);
Name = Name.substr(0, Underscore);
}
std::reverse(Types.begin(), Types.end());
return Name;
}
/// Build a builtin function declaration.
static FuncDecl *
getBuiltinFunction(Identifier Id,
ArrayRef<TupleTypeElt> ArgTypes,
Type ResType,
FunctionType::ExtInfo Info = FunctionType::ExtInfo()) {
auto &Context = ResType->getASTContext();
Type ArgType = TupleType::get(ArgTypes, Context);
Type FnType;
FnType = FunctionType::get(ArgType, ResType, Info);
Module *M = Context.TheBuiltinModule;
DeclContext *DC = &M->getMainFile(FileUnitKind::Builtin);
SmallVector<TuplePatternElt, 4> ParamPatternElts;
for (auto &ArgTupleElt : ArgTypes) {
auto PD = new (Context) ParamDecl(/*IsLet*/true, SourceLoc(),
Identifier(), SourceLoc(),
Identifier(), ArgTupleElt.getType(),
DC);
PD->setImplicit();
Pattern *Pat = new (Context) NamedPattern(PD, /*implicit=*/true);
Pat = new (Context) TypedPattern(Pat,
TypeLoc::withoutLoc(ArgTupleElt.getType()), /*implicit=*/true);
PD->setParamParentPattern(Pat);
ParamPatternElts.push_back(TuplePatternElt(Pat));
}
Pattern *ParamPattern = TuplePattern::createSimple(
Context, SourceLoc(), ParamPatternElts, SourceLoc());
llvm::SmallVector<Identifier, 2> ArgNames(ParamPattern->numTopLevelVariables(),
Identifier());
DeclName Name(Context, Id, ArgNames);
auto FD = FuncDecl::create(Context, SourceLoc(), StaticSpellingKind::None,
SourceLoc(), Name, SourceLoc(), SourceLoc(),
SourceLoc(), /*GenericParams=*/nullptr, FnType,
ParamPattern, TypeLoc::withoutLoc(ResType), DC);
FD->setImplicit();
FD->setAccessibility(Accessibility::Public);
return FD;
}
/// Build a builtin function declaration.
static FuncDecl *
getBuiltinGenericFunction(Identifier Id,
ArrayRef<TupleTypeElt> ArgParamTypes,
ArrayRef<TupleTypeElt> ArgBodyTypes,
Type ResType,
Type ResBodyType,
GenericParamList *GenericParams,
FunctionType::ExtInfo Info = FunctionType::ExtInfo()) {
assert(GenericParams && "Missing generic parameters");
auto &Context = ResType->getASTContext();
Type ArgParamType = TupleType::get(ArgParamTypes, Context);
Type ArgBodyType = TupleType::get(ArgBodyTypes, Context);
// Compute the function type.
Type FnType = PolymorphicFunctionType::get(ArgBodyType, ResBodyType,
GenericParams, Info);
// Compute the interface type.
SmallVector<GenericTypeParamType *, 1> GenericParamTypes;
for (auto gp : *GenericParams) {
GenericParamTypes.push_back(gp->getDeclaredType()
->castTo<GenericTypeParamType>());
}
// Create witness markers for all of the generic param types.
SmallVector<Requirement, 2> requirements;
for (auto param : GenericParamTypes) {
requirements.push_back(Requirement(RequirementKind::WitnessMarker,
param, Type()));
}
GenericSignature *Sig = GenericSignature::get(GenericParamTypes,requirements);
Type InterfaceType = GenericFunctionType::get(Sig,
ArgParamType, ResType,
Info);
Module *M = Context.TheBuiltinModule;
DeclContext *DC = &M->getMainFile(FileUnitKind::Builtin);
SmallVector<TuplePatternElt, 4> ParamPatternElts;
for (auto &ArgTupleElt : ArgBodyTypes) {
auto PD = new (Context) ParamDecl(/*IsLet*/true, SourceLoc(),
Identifier(), SourceLoc(),
Identifier(), ArgTupleElt.getType(),
DC);
PD->setImplicit();
Pattern *Pat = new (Context) NamedPattern(PD, /*implicit=*/true);
Pat = new (Context) TypedPattern(Pat,
TypeLoc::withoutLoc(ArgTupleElt.getType()), /*implicit=*/true);
PD->setParamParentPattern(Pat);
ParamPatternElts.push_back(TuplePatternElt(Pat));
}
Pattern *ParamPattern = TuplePattern::createSimple(
Context, SourceLoc(), ParamPatternElts, SourceLoc());
llvm::SmallVector<Identifier, 2> ArgNames(
ParamPattern->numTopLevelVariables(),
Identifier());
DeclName Name(Context, Id, ArgNames);
auto func = FuncDecl::create(Context, SourceLoc(), StaticSpellingKind::None,
SourceLoc(), Name,
SourceLoc(), SourceLoc(), SourceLoc(),
GenericParams, FnType, ParamPattern,
TypeLoc::withoutLoc(ResBodyType), DC);
func->setInterfaceType(InterfaceType);
func->setImplicit();
func->setAccessibility(Accessibility::Public);
return func;
}
/// Build a getelementptr operation declaration.
static ValueDecl *getGepOperation(Identifier Id, Type ArgType) {
auto &Context = ArgType->getASTContext();
// This is always "(i8*, IntTy) -> i8*"
TupleTypeElt ArgElts[] = { Context.TheRawPointerType, ArgType };
Type ResultTy = Context.TheRawPointerType;
return getBuiltinFunction(Id, ArgElts, ResultTy);
}
/// Build a binary operation declaration.
static ValueDecl *getBinaryOperation(Identifier Id, Type ArgType) {
TupleTypeElt ArgElts[] = { ArgType, ArgType };
Type ResultTy = ArgType;
return getBuiltinFunction(Id, ArgElts, ResultTy);
}
/// Build a declaration for a binary operation with overflow.
static ValueDecl *getBinaryOperationWithOverflow(Identifier Id,
Type ArgType) {
auto &Context = ArgType->getASTContext();
Type ShouldCheckForOverflowTy = BuiltinIntegerType::get(1, Context);
TupleTypeElt ArgElts[] = { ArgType, ArgType, ShouldCheckForOverflowTy };
Type OverflowBitTy = BuiltinIntegerType::get(1, Context);
TupleTypeElt ResultElts[] = { ArgType, OverflowBitTy };
Type ResultTy = TupleType::get(ResultElts, Context);
return getBuiltinFunction(Id, ArgElts, ResultTy);
}
static ValueDecl *getUnaryOperation(Identifier Id, Type ArgType) {
TupleTypeElt ArgElts[] = { ArgType };
Type ResultTy = ArgType;
return getBuiltinFunction(Id, ArgElts, ResultTy);
}
/// Build a binary predicate declaration.
static ValueDecl *getBinaryPredicate(Identifier Id, Type ArgType) {
auto &Context = ArgType->getASTContext();
TupleTypeElt ArgElts[] = { ArgType, ArgType };
Type ResultTy = BuiltinIntegerType::get(1, Context);
if (auto VecTy = ArgType->getAs<BuiltinVectorType>()) {
ResultTy = BuiltinVectorType::get(Context, ResultTy,
VecTy->getNumElements());
}
return getBuiltinFunction(Id, ArgElts, ResultTy);
}
/// Build a cast. There is some custom type checking here.
static ValueDecl *getCastOperation(ASTContext &Context, Identifier Id,
BuiltinValueKind VK,
ArrayRef<Type> Types) {
if (Types.size() == 0 || Types.size() > 2) return nullptr;
Type Input = Types[0];
Type Output = Types.size() == 2 ? Types[1] : Type();
// If both types are vectors, look through the vectors.
Type CheckInput = Input;
Type CheckOutput = Output;
bool UnwrappedVector = false;
auto InputVec = Input->getAs<BuiltinVectorType>();
auto OutputVec = Output.isNull()? nullptr :Output->getAs<BuiltinVectorType>();
if (InputVec && OutputVec &&
InputVec->getNumElements() == OutputVec->getNumElements()) {
UnwrappedVector = true;
CheckInput = InputVec->getElementType();
CheckOutput = OutputVec->getElementType();
}
// Custom type checking. We know the one or two types have been subjected to
// the "isBuiltinTypeOverloaded" predicate successfully.
switch (VK) {
default: llvm_unreachable("Not a cast operation");
case BuiltinValueKind::Trunc:
if (CheckOutput.isNull() ||
!CheckInput->is<BuiltinIntegerType>() ||
!CheckOutput->is<BuiltinIntegerType>() ||
CheckInput->castTo<BuiltinIntegerType>()->getLeastWidth() <=
CheckOutput->castTo<BuiltinIntegerType>()->getGreatestWidth())
return nullptr;
break;
case BuiltinValueKind::TruncOrBitCast:
if (CheckOutput.isNull() ||
!CheckInput->is<BuiltinIntegerType>() ||
!CheckOutput->is<BuiltinIntegerType>() ||
CheckInput->castTo<BuiltinIntegerType>()->getLeastWidth() <
CheckOutput->castTo<BuiltinIntegerType>()->getGreatestWidth())
return nullptr;
break;
case BuiltinValueKind::ZExt:
case BuiltinValueKind::SExt: {
if (CheckOutput.isNull() ||
!CheckInput->is<BuiltinIntegerType>() ||
!CheckOutput->is<BuiltinIntegerType>() ||
CheckInput->castTo<BuiltinIntegerType>()->getGreatestWidth() >=
CheckOutput->castTo<BuiltinIntegerType>()->getLeastWidth())
return nullptr;
break;
}
case BuiltinValueKind::ZExtOrBitCast:
case BuiltinValueKind::SExtOrBitCast: {
if (CheckOutput.isNull() ||
!CheckInput->is<BuiltinIntegerType>() ||
!CheckOutput->is<BuiltinIntegerType>() ||
CheckInput->castTo<BuiltinIntegerType>()->getGreatestWidth() >
CheckOutput->castTo<BuiltinIntegerType>()->getLeastWidth())
return nullptr;
break;
}
case BuiltinValueKind::FPToUI:
case BuiltinValueKind::FPToSI:
if (CheckOutput.isNull() || !CheckInput->is<BuiltinFloatType>() ||
!CheckOutput->is<BuiltinIntegerType>())
return nullptr;
break;
case BuiltinValueKind::UIToFP:
case BuiltinValueKind::SIToFP:
if (CheckOutput.isNull() || !CheckInput->is<BuiltinIntegerType>() ||
!CheckOutput->is<BuiltinFloatType>())
return nullptr;
break;
case BuiltinValueKind::FPTrunc:
if (CheckOutput.isNull() ||
!CheckInput->is<BuiltinFloatType>() ||
!CheckOutput->is<BuiltinFloatType>() ||
CheckInput->castTo<BuiltinFloatType>()->getFPKind() <=
CheckOutput->castTo<BuiltinFloatType>()->getFPKind())
return nullptr;
break;
case BuiltinValueKind::FPExt:
if (CheckOutput.isNull() ||
!CheckInput->is<BuiltinFloatType>() ||
!CheckOutput->is<BuiltinFloatType>() ||
CheckInput->castTo<BuiltinFloatType>()->getFPKind() >=
CheckOutput->castTo<BuiltinFloatType>()->getFPKind())
return nullptr;
break;
case BuiltinValueKind::PtrToInt:
// FIXME: Do we care about vectors of pointers?
if (!CheckOutput.isNull() || !CheckInput->is<BuiltinIntegerType>() ||
UnwrappedVector)
return nullptr;
Output = Input;
Input = Context.TheRawPointerType;
break;
case BuiltinValueKind::IntToPtr:
// FIXME: Do we care about vectors of pointers?
if (!CheckOutput.isNull() || !CheckInput->is<BuiltinIntegerType>() ||
UnwrappedVector)
return nullptr;
Output = Context.TheRawPointerType;
break;
case BuiltinValueKind::BitCast:
if (CheckOutput.isNull()) return nullptr;
// Support float <-> int bitcast where the types are the same widths.
if (auto *BIT = CheckInput->getAs<BuiltinIntegerType>())
if (auto *BFT = CheckOutput->getAs<BuiltinFloatType>())
if (BIT->isFixedWidth() && BIT->getFixedWidth() == BFT->getBitWidth())
break;
if (auto *BFT = CheckInput->getAs<BuiltinFloatType>())
if (auto *BIT = CheckOutput->getAs<BuiltinIntegerType>())
if (BIT->isFixedWidth() && BIT->getFixedWidth() == BFT->getBitWidth())
break;
// FIXME: Implement bitcast typechecking.
llvm_unreachable("Bitcast not supported yet!");
return nullptr;
}
TupleTypeElt ArgElts[] = { Input };
return getBuiltinFunction(Id, ArgElts, Output);
}
static const char * const GenericParamNames[] = {
"T",
"U",
};
static std::pair<ArchetypeType*, GenericTypeParamDecl*>
createGenericParam(ASTContext &ctx, const char *name, unsigned index) {
Module *M = ctx.TheBuiltinModule;
Identifier ident = ctx.getIdentifier(name);
ArchetypeType *archetype
= ArchetypeType::getNew(ctx, nullptr,
static_cast<AssociatedTypeDecl *>(nullptr),
ident, ArrayRef<Type>(), Type(), false);
auto genericParam =
new (ctx) GenericTypeParamDecl(&M->getMainFile(FileUnitKind::Builtin),
ident, SourceLoc(), 0, index);
genericParam->setArchetype(archetype);
return { archetype, genericParam };
}
/// Create a generic parameter list with multiple generic parameters.
static GenericParamList *getGenericParams(ASTContext &ctx,
unsigned numParameters,
SmallVectorImpl<ArchetypeType*> &archetypes,
SmallVectorImpl<GenericTypeParamDecl*> &genericParams) {
assert(numParameters <= llvm::array_lengthof(GenericParamNames));
assert(archetypes.empty() && genericParams.empty());
for (unsigned i = 0; i != numParameters; ++i) {
auto archetypeAndParam = createGenericParam(ctx, GenericParamNames[i], i);
archetypes.push_back(archetypeAndParam.first);
genericParams.push_back(archetypeAndParam.second);
}
auto paramList = GenericParamList::create(ctx, SourceLoc(), genericParams,
SourceLoc());
paramList->setAllArchetypes(ctx.AllocateCopy(archetypes));
return paramList;
}
namespace {
class GenericSignatureBuilder {
public:
ASTContext &Context;
private:
GenericParamList *TheGenericParamList;
SmallVector<GenericTypeParamDecl*, 2> GenericTypeParams;
SmallVector<ArchetypeType*, 2> Archetypes;
SmallVector<TupleTypeElt, 4> InterfaceParams;
SmallVector<TupleTypeElt, 4> BodyParams;
Type InterfaceResult;
Type BodyResult;
public:
GenericSignatureBuilder(ASTContext &ctx, unsigned numGenericParams = 1)
: Context(ctx) {
TheGenericParamList = getGenericParams(ctx, numGenericParams,
Archetypes, GenericTypeParams);
}
template <class G>
void addParameter(const G &generator) {
InterfaceParams.push_back(generator.build(*this, false));
BodyParams.push_back(generator.build(*this, true));
}
template <class G>
void setResult(const G &generator) {
InterfaceResult = generator.build(*this, false);
BodyResult = generator.build(*this, true);
}
ValueDecl *build(Identifier name) {
return getBuiltinGenericFunction(name, InterfaceParams, BodyParams,
InterfaceResult, BodyResult,
TheGenericParamList);
}
// Don't use these generator classes directly; call the make{...}
// functions which follow this class.
struct ConcreteGenerator {
Type TheType;
Type build(GenericSignatureBuilder &builder, bool forBody) const {
return TheType;
}
};
struct ParameterGenerator {
unsigned Index;
Type build(GenericSignatureBuilder &builder, bool forBody) const {
return (forBody ? builder.Archetypes[Index]
: builder.GenericTypeParams[Index]->getDeclaredType());
}
};
struct LambdaGenerator {
std::function<Type(GenericSignatureBuilder &,bool)> TheFunction;
Type build(GenericSignatureBuilder &builder, bool forBody) const {
return TheFunction(builder, forBody);
}
};
template <class T, class U>
struct FunctionGenerator {
T Arg;
U Result;
FunctionType::ExtInfo ExtInfo;
Type build(GenericSignatureBuilder &builder, bool forBody) const {
return FunctionType::get(Arg.build(builder, forBody),
Result.build(builder, forBody),
ExtInfo);
}
};
template <class T>
struct InOutGenerator {
T Object;
Type build(GenericSignatureBuilder &builder, bool forBody) const {
return InOutType::get(Object.build(builder, forBody));
}
};
template <class T>
struct MetatypeGenerator {
T Object;
Optional<MetatypeRepresentation> Repr;
Type build(GenericSignatureBuilder &builder, bool forBody) const {
return MetatypeType::get(Object.build(builder, forBody), Repr);
}
};
};
}
static GenericSignatureBuilder::ConcreteGenerator
makeConcrete(Type type) {
return { type };
}
static GenericSignatureBuilder::ParameterGenerator
makeGenericParam(unsigned index = 0) {
return { index };
}
template <class... Gs>
static GenericSignatureBuilder::LambdaGenerator
makeTuple(const Gs & ...elementGenerators) {
return {
[=](GenericSignatureBuilder &builder, bool forBody) -> Type {
TupleTypeElt elts[] = {
elementGenerators.build(builder, forBody)...
};
return TupleType::get(elts, builder.Context);
}
};
}
template <class T, class U>
static GenericSignatureBuilder::FunctionGenerator<T,U>
makeFunction(const T &arg, const U &result,
FunctionType::ExtInfo extInfo = FunctionType::ExtInfo()) {
return { arg, result, extInfo };
}
template <class T>
static GenericSignatureBuilder::InOutGenerator<T>
makeInOut(const T &object) {
return { object };
}
template <class T>
static GenericSignatureBuilder::MetatypeGenerator<T>
makeMetatype(const T &object, Optional<MetatypeRepresentation> repr = None) {
return { object, repr };
}
/// Create a function with type <T> T -> ().
static ValueDecl *getRefCountingOperation(ASTContext &Context, Identifier Id) {
GenericSignatureBuilder builder(Context);
builder.addParameter(makeGenericParam());
builder.setResult(makeConcrete(TupleType::getEmpty(Context)));
return builder.build(Id);
}
static ValueDecl *getLoadOperation(ASTContext &Context, Identifier Id) {
GenericSignatureBuilder builder(Context);
builder.addParameter(makeConcrete(Context.TheRawPointerType));
builder.setResult(makeGenericParam());
return builder.build(Id);
}
static ValueDecl *getStoreOperation(ASTContext &Context, Identifier Id) {
GenericSignatureBuilder builder(Context);
builder.addParameter(makeGenericParam());
builder.addParameter(makeConcrete(Context.TheRawPointerType));
builder.setResult(makeConcrete(TupleType::getEmpty(Context)));
return builder.build(Id);
}
static ValueDecl *getDestroyOperation(ASTContext &Context, Identifier Id) {
GenericSignatureBuilder builder(Context);
builder.addParameter(makeMetatype(makeGenericParam()));
builder.addParameter(makeConcrete(Context.TheRawPointerType));
builder.setResult(makeConcrete(TupleType::getEmpty(Context)));
return builder.build(Id);
}
static ValueDecl *getDestroyArrayOperation(ASTContext &Context, Identifier Id) {
auto wordType = BuiltinIntegerType::get(BuiltinIntegerWidth::pointer(),
Context);
GenericSignatureBuilder builder(Context);
builder.addParameter(makeMetatype(makeGenericParam()));
builder.addParameter(makeConcrete(Context.TheRawPointerType));
builder.addParameter(makeConcrete(wordType));
builder.setResult(makeConcrete(TupleType::getEmpty(Context)));
return builder.build(Id);
}
static ValueDecl *getTransferArrayOperation(ASTContext &Context, Identifier Id){
auto wordType = BuiltinIntegerType::get(BuiltinIntegerWidth::pointer(),
Context);
GenericSignatureBuilder builder(Context);
builder.addParameter(makeMetatype(makeGenericParam()));
builder.addParameter(makeConcrete(Context.TheRawPointerType));
builder.addParameter(makeConcrete(Context.TheRawPointerType));
builder.addParameter(makeConcrete(wordType));
builder.setResult(makeConcrete(TupleType::getEmpty(Context)));
return builder.build(Id);
}
static ValueDecl *getIsUniqueOperation(ASTContext &Context, Identifier Id) {
// <T> (@inout T) -> Int1
Type Int1Ty = BuiltinIntegerType::get(1, Context);
GenericSignatureBuilder builder(Context);
builder.addParameter(makeInOut(makeGenericParam()));
builder.setResult(makeConcrete(Int1Ty));
return builder.build(Id);
}
static ValueDecl *getSizeOrAlignOfOperation(ASTContext &Context,
Identifier Id) {
GenericSignatureBuilder builder(Context);
builder.addParameter(makeMetatype(makeGenericParam()));
builder.setResult(makeConcrete(BuiltinIntegerType::getWordType(Context)));
return builder.build(Id);
}
static ValueDecl *getIsPODOperation(ASTContext &Context, Identifier Id) {
GenericSignatureBuilder builder(Context);
builder.addParameter(makeMetatype(makeGenericParam()));
builder.setResult(makeConcrete(BuiltinIntegerType::get(1,Context)));
return builder.build(Id);
}
static ValueDecl *getAllocOperation(ASTContext &Context, Identifier Id) {
Type PtrSizeTy = BuiltinIntegerType::getWordType(Context);
TupleTypeElt ArgElts[] = { PtrSizeTy, PtrSizeTy };
Type ResultTy = Context.TheRawPointerType;
return getBuiltinFunction(Id, ArgElts, ResultTy);
}
static ValueDecl *getDeallocOperation(ASTContext &Context, Identifier Id) {
auto PtrSizeTy = BuiltinIntegerType::getWordType(Context);
TupleTypeElt ArgElts[] = { Context.TheRawPointerType, PtrSizeTy, PtrSizeTy };
Type ResultTy = TupleType::getEmpty(Context);
return getBuiltinFunction(Id, ArgElts, ResultTy);
}
static ValueDecl *getFenceOperation(ASTContext &Context, Identifier Id) {
return getBuiltinFunction(Id, {}, TupleType::getEmpty(Context));
}
static ValueDecl *getVoidErrorOperation(ASTContext &Context, Identifier Id) {
return getBuiltinFunction(Id, {Context.getExceptionType()},
TupleType::getEmpty(Context));
}
static ValueDecl *getUnexpectedErrorOperation(ASTContext &Context,
Identifier Id) {
return getBuiltinFunction(Id, {Context.getExceptionType()},
TupleType::getEmpty(Context),
AnyFunctionType::ExtInfo().withIsNoReturn());
}
static ValueDecl *getCmpXChgOperation(ASTContext &Context, Identifier Id,
Type T) {
TupleTypeElt ArgElts[] = { Context.TheRawPointerType, T, T };
Type BoolTy = BuiltinIntegerType::get(1, Context);
TupleTypeElt ResultElts[] = { T, BoolTy };
Type ResultTy = TupleType::get(ResultElts, Context);
return getBuiltinFunction(Id, ArgElts, ResultTy);
}
static ValueDecl *getAtomicRMWOperation(ASTContext &Context, Identifier Id,
Type T) {
TupleTypeElt ArgElts[] = { Context.TheRawPointerType, T };
Type ResultTy = T;
return getBuiltinFunction(Id, ArgElts, ResultTy);
}
static ValueDecl *getAtomicLoadOperation(ASTContext &Context, Identifier Id,
Type T) {
TupleTypeElt ArgElts[] = { Context.TheRawPointerType };
Type ResultTy = T;
return getBuiltinFunction(Id, ArgElts, ResultTy);
}
static ValueDecl *getAtomicStoreOperation(ASTContext &Context, Identifier Id,
Type T) {
TupleTypeElt ArgElts[] = { Context.TheRawPointerType, T };
Type ResultTy = Context.TheEmptyTupleType;
return getBuiltinFunction(Id, ArgElts, ResultTy);
}
static ValueDecl *getNativeObjectCast(ASTContext &Context, Identifier Id,
BuiltinValueKind BV) {
Type BuiltinTy;
if (BV == BuiltinValueKind::BridgeToRawPointer ||
BV == BuiltinValueKind::BridgeFromRawPointer)
BuiltinTy = Context.TheRawPointerType;
else if (BV == BuiltinValueKind::CastToUnknownObject ||
BV == BuiltinValueKind::CastFromUnknownObject)
BuiltinTy = Context.TheUnknownObjectType;
else
BuiltinTy = Context.TheNativeObjectType;
GenericSignatureBuilder builder(Context);
if (BV == BuiltinValueKind::CastToNativeObject ||
BV == BuiltinValueKind::CastToUnknownObject ||
BV == BuiltinValueKind::BridgeToRawPointer) {
builder.addParameter(makeGenericParam());
builder.setResult(makeConcrete(BuiltinTy));
} else {
builder.addParameter(makeConcrete(BuiltinTy));
builder.setResult(makeGenericParam());
}
return builder.build(Id);
}
static ValueDecl *getCastToBridgeObjectOperation(ASTContext &C,
Identifier Id) {
auto wordType = BuiltinIntegerType::get(BuiltinIntegerWidth::pointer(),
C);
GenericSignatureBuilder builder(C);
builder.addParameter(makeGenericParam());
builder.addParameter(makeConcrete(wordType));
builder.setResult(makeConcrete(C.TheBridgeObjectType));
return builder.build(Id);
}
static ValueDecl *getCastFromBridgeObjectOperation(ASTContext &C,
Identifier Id,
BuiltinValueKind BV) {
Type BridgeTy = C.TheBridgeObjectType;
TupleTypeElt ArgElts[] = { BridgeTy };
switch (BV) {
case BuiltinValueKind::CastReferenceFromBridgeObject: {
GenericSignatureBuilder builder(C);
builder.addParameter(makeConcrete(BridgeTy));
builder.setResult(makeGenericParam());
return builder.build(Id);
}
case BuiltinValueKind::CastBitPatternFromBridgeObject: {
Type WordTy = BuiltinIntegerType::get(BuiltinIntegerWidth::pointer(), C);
return getBuiltinFunction(Id, ArgElts, WordTy);
}
default:
llvm_unreachable("not a cast from bridge object op");
}
}
static ValueDecl *getCastReferenceOperation(ASTContext &ctx,
Identifier name) {
// <T, U> T -> U
// SILGen and IRGen check additional constraints during lowering.
GenericSignatureBuilder builder(ctx, 2);
builder.addParameter(makeGenericParam(0));
builder.setResult(makeGenericParam(1));
return builder.build(name);
}
static ValueDecl *getReinterpretCastOperation(ASTContext &ctx,
Identifier name) {
// <T, U> T -> U
// SILGen and IRGen check additional constraints during lowering.
GenericSignatureBuilder builder(ctx, 2);
builder.addParameter(makeGenericParam(0));
builder.setResult(makeGenericParam(1));
return builder.build(name);
}
static ValueDecl *getMarkDependenceOperation(ASTContext &ctx, Identifier name) {
// <T,U> (T,U) -> T
GenericSignatureBuilder builder(ctx, 2);
builder.addParameter(makeGenericParam(0));
builder.addParameter(makeGenericParam(1));
builder.setResult(makeGenericParam(0));
return builder.build(name);
}
static ValueDecl *getZeroInitializerOperation(ASTContext &Context,
Identifier Id) {
// <T> () -> T
GenericSignatureBuilder builder(Context);
builder.setResult(makeGenericParam());
return builder.build(Id);
}
static ValueDecl *getAddressOfOperation(ASTContext &Context, Identifier Id) {
// <T> (@inout T) -> RawPointer
GenericSignatureBuilder builder(Context);
builder.addParameter(makeInOut(makeGenericParam()));
builder.setResult(makeConcrete(Context.TheRawPointerType));
return builder.build(Id);
}
static ValueDecl *getCanBeObjCClassOperation(ASTContext &Context,
Identifier Id) {
// <T> T.Type -> Builtin.Int8
GenericSignatureBuilder builder(Context);
builder.addParameter(makeMetatype(makeGenericParam()));
builder.setResult(makeConcrete(BuiltinIntegerType::get(8, Context)));
return builder.build(Id);
}
static ValueDecl *getCondFailOperation(ASTContext &C, Identifier Id) {
// Int1 -> ()
auto CondTy = BuiltinIntegerType::get(1, C);
auto VoidTy = TupleType::getEmpty(C);
TupleTypeElt CondElt(CondTy);
return getBuiltinFunction(Id, CondElt, VoidTy);
}
static ValueDecl *getAssertConfOperation(ASTContext &C, Identifier Id) {
// () -> Int32
auto Int32Ty = BuiltinIntegerType::get(32, C);
auto VoidTy = TupleType::getEmpty(C);
TupleTypeElt EmptyElt(VoidTy);
return getBuiltinFunction(Id, EmptyElt, Int32Ty);
}
static ValueDecl *getFixLifetimeOperation(ASTContext &C, Identifier Id) {
// <T> T -> ()
GenericSignatureBuilder builder(C);
builder.addParameter(makeGenericParam());
builder.setResult(makeConcrete(TupleType::getEmpty(C)));
return builder.build(Id);
}
static ValueDecl *getExtractElementOperation(ASTContext &Context, Identifier Id,
Type FirstTy, Type SecondTy) {
// (Vector<N, T>, Int32) -> T
auto VecTy = FirstTy->getAs<BuiltinVectorType>();
if (!VecTy)
return nullptr;
auto IndexTy = SecondTy->getAs<BuiltinIntegerType>();
if (!IndexTy || !IndexTy->isFixedWidth() || IndexTy->getFixedWidth() != 32)
return nullptr;
TupleTypeElt ArgElts[] = { VecTy, IndexTy };
Type ResultTy = VecTy->getElementType();
return getBuiltinFunction(Id, ArgElts, ResultTy);
}
static ValueDecl *getInsertElementOperation(ASTContext &Context, Identifier Id,
Type FirstTy, Type SecondTy,
Type ThirdTy) {
// (Vector<N, T>, T, Int32) -> Vector<N, T>
auto VecTy = FirstTy->getAs<BuiltinVectorType>();
if (!VecTy)
return nullptr;
auto ElementTy = VecTy->getElementType();
if (!SecondTy->isEqual(ElementTy))
return nullptr;
auto IndexTy = ThirdTy->getAs<BuiltinIntegerType>();
if (!IndexTy || !IndexTy->isFixedWidth() || IndexTy->getFixedWidth() != 32)
return nullptr;
TupleTypeElt ArgElts[] = { VecTy, ElementTy, IndexTy };
Type ResultTy = VecTy;
return getBuiltinFunction(Id, ArgElts, ResultTy);
}
static ValueDecl *getStaticReportOperation(ASTContext &Context, Identifier Id) {
auto BoolTy = BuiltinIntegerType::get(1, Context);
auto MessageTy = Context.TheRawPointerType;
TupleTypeElt ArgElts[] = { BoolTy, BoolTy, MessageTy };
Type ResultTy = TupleType::getEmpty(Context);
return getBuiltinFunction(Id, ArgElts, ResultTy);
}
static ValueDecl *getCheckedTruncOperation(ASTContext &Context,
Identifier Id,
Type InputTy,
Type OutputTy) {
auto InTy = InputTy->getAs<BuiltinIntegerType>();
auto OutTy = OutputTy->getAs<BuiltinIntegerType>();
if (!InTy || !OutTy)
return nullptr;
if (InTy->getLeastWidth() < OutTy->getGreatestWidth())
return nullptr;
TupleTypeElt ArgElts[] = { InTy };
Type OverflowBitTy = BuiltinIntegerType::get(1, Context);
TupleTypeElt ResultElts[] = { OutTy, OverflowBitTy };
Type ResultTy = TupleType::get(ResultElts, Context);
return getBuiltinFunction(Id, ArgElts, ResultTy);
}
static ValueDecl *getCheckedConversionOperation(ASTContext &Context,
Identifier Id,
Type Ty) {
auto BuiltinTy = Ty->getAs<BuiltinIntegerType>();
if (!BuiltinTy)
return nullptr;
TupleTypeElt ArgElts[] = { BuiltinTy };
Type SignErrorBitTy = BuiltinIntegerType::get(1, Context);
TupleTypeElt ResultElts[] = { BuiltinTy, SignErrorBitTy };
Type ResultTy = TupleType::get(ResultElts, Context);
return getBuiltinFunction(Id, ArgElts, ResultTy);
}
static ValueDecl *getIntToFPWithOverflowOperation(ASTContext &Context,
Identifier Id, Type InputTy,
Type OutputTy) {
auto InTy = InputTy->getAs<BuiltinIntegerType>();
auto OutTy = OutputTy->getAs<BuiltinFloatType>();
if (!InTy || !OutTy)
return nullptr;
TupleTypeElt ArgElts[] = { InTy };
Type ResultTy = OutTy;
return getBuiltinFunction(Id, ArgElts, ResultTy);
}
static ValueDecl *getUnreachableOperation(ASTContext &Context,
Identifier Id) {
// @noreturn () -> ()
auto VoidTy = Context.TheEmptyTupleType;
return getBuiltinFunction(Id, {}, VoidTy,
AnyFunctionType::ExtInfo().withIsNoReturn(true));
}
static ValueDecl *getOnceOperation(ASTContext &Context,
Identifier Id) {
// (RawPointer, @convention(thin) () -> ()) -> ()
auto HandleTy = Context.TheRawPointerType;
auto VoidTy = Context.TheEmptyTupleType;
auto Thin = FunctionType::ExtInfo(FunctionTypeRepresentation::Thin,
/*noreturn*/ false, /*throws*/ false);
auto BlockTy = FunctionType::get(VoidTy, VoidTy, Thin);
TupleTypeElt InFields[] = {HandleTy, BlockTy};
auto OutTy = VoidTy;