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swift-mirror/lib/AST/Builtins.cpp
Jordan Rose 7e8c007757 Remove unused parameter from helper function in Builtins.cpp 
Intrinsics never have custom function type ExtInfo anymore. (This used
to be where the "noreturn" bit lived, but now that's represented by
Swift.Never.)

No functionality change.
2018-12-04 11:22:38 -08:00

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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 - 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
//
//===----------------------------------------------------------------------===//
//
// This file implements the interface to the Builtin APIs.
//
//===----------------------------------------------------------------------===//
#include "swift/AST/GenericSignatureBuilder.h"
#include "swift/Basic/LLVMContext.h"
#include "swift/AST/ASTContext.h"
#include "swift/AST/Builtins.h"
#include "swift/AST/Module.h"
#include "swift/AST/ParameterList.h"
#include "swift/AST/GenericEnvironment.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 <tuple>
using namespace swift;
struct BuiltinExtraInfoTy {
const char *Attributes;
};
static const BuiltinExtraInfoTy BuiltinExtraInfo[] = {
{nullptr},
#define BUILTIN(Id, Name, Attrs) {Attrs},
#include "swift/AST/Builtins.def"
};
bool BuiltinInfo::isReadNone() const {
return strchr(BuiltinExtraInfo[(unsigned)ID].Attributes, 'n') != nullptr;
}
bool IntrinsicInfo::hasAttribute(llvm::Attribute::AttrKind Kind) const {
using DenseMapInfo = llvm::DenseMapInfo<llvm::AttributeList>;
if (DenseMapInfo::isEqual(Attrs, DenseMapInfo::getEmptyKey())) {
// FIXME: We should not be relying on the global LLVM context.
Attrs = llvm::Intrinsic::getAttributes(getGlobalLLVMContext(), ID);
}
return Attrs.hasFnAttribute(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 == "SILToken")
return Context.TheSILTokenType;
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);
if (Name == "IntLiteral")
return Context.TheIntegerLiteralType;
// 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;
// AnyObject is the empty class-constrained existential.
if (Name == "AnyObject")
return CanType(
ProtocolCompositionType::get(Context, {},
/*HasExplicitAnyObject=*/true));
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<Type> argTypes, Type ResType,
FunctionType::ExtInfo Info = FunctionType::ExtInfo()) {
auto &Context = ResType->getASTContext();
ModuleDecl *M = Context.TheBuiltinModule;
DeclContext *DC = &M->getMainFile(FileUnitKind::Builtin);
SmallVector<ParamDecl*, 4> params;
for (Type argType : argTypes) {
auto PD = new (Context)
ParamDecl(VarDecl::Specifier::Default, SourceLoc(), SourceLoc(),
Identifier(), SourceLoc(), Identifier(), DC);
PD->setInterfaceType(argType);
PD->setValidationToChecked();
PD->setImplicit();
params.push_back(PD);
}
auto *paramList = ParameterList::create(Context, params);
DeclName Name(Context, Id, paramList);
auto FD = FuncDecl::create(Context, /*StaticLoc=*/SourceLoc(),
StaticSpellingKind::None,
/*FuncLoc=*/SourceLoc(),
Name, /*NameLoc=*/SourceLoc(),
/*Throws=*/false, /*ThrowsLoc=*/SourceLoc(),
/*GenericParams=*/nullptr,
paramList,
TypeLoc::withoutLoc(ResType), DC);
FD->computeType(Info);
FD->setValidationToChecked();
FD->setImplicit();
FD->setAccess(AccessLevel::Public);
return FD;
}
/// Build a builtin function declaration.
static FuncDecl *
getBuiltinGenericFunction(Identifier Id,
ArrayRef<AnyFunctionType::Param> ArgParamTypes,
Type ResType,
GenericParamList *GenericParams,
GenericEnvironment *Env) {
assert(GenericParams && "Missing generic parameters");
auto &Context = ResType->getASTContext();
ModuleDecl *M = Context.TheBuiltinModule;
DeclContext *DC = &M->getMainFile(FileUnitKind::Builtin);
SmallVector<ParamDecl*, 4> params;
for (unsigned i = 0, e = ArgParamTypes.size(); i < e; i++) {
auto paramIfaceType = ArgParamTypes[i].getPlainType();
auto specifier =
VarDecl::getParameterSpecifierForValueOwnership(
ArgParamTypes[i].getParameterFlags().getValueOwnership());
auto PD = new (Context) ParamDecl(specifier,
SourceLoc(), SourceLoc(),
Identifier(), SourceLoc(),
Identifier(), DC);
PD->setInterfaceType(paramIfaceType);
PD->setValidationToChecked();
PD->setImplicit();
params.push_back(PD);
}
auto *paramList = ParameterList::create(Context, params);
DeclName Name(Context, Id, paramList);
auto func = FuncDecl::create(Context, /*StaticLoc=*/SourceLoc(),
StaticSpellingKind::None,
/*FuncLoc=*/SourceLoc(),
Name, /*NameLoc=*/SourceLoc(),
/*Throws=*/false, /*ThrowsLoc=*/SourceLoc(),
GenericParams,
paramList,
TypeLoc::withoutLoc(ResType), DC);
func->setGenericEnvironment(Env);
func->computeType();
func->setValidationToChecked();
func->setImplicit();
func->setAccess(AccessLevel::Public);
return func;
}
/// Build a getelementptr operation declaration.
static ValueDecl *getGepRawOperation(Identifier Id, Type ArgType) {
auto &Context = ArgType->getASTContext();
// This is always "(i8*, IntTy) -> i8*"
Type ArgElts[] = { Context.TheRawPointerType, ArgType };
Type ResultTy = Context.TheRawPointerType;
return getBuiltinFunction(Id, ArgElts, ResultTy);
}
static ValueDecl *getStringObjectOrOperation(Identifier Id, Type ArgType) {
return getBuiltinFunction(Id, {ArgType, ArgType}, ArgType);
}
/// Build a binary operation declaration.
static ValueDecl *getBinaryOperation(Identifier Id, Type ArgType) {
return getBuiltinFunction(Id, { ArgType, ArgType }, ArgType);
}
/// 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);
Type 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) {
return getBuiltinFunction(Id, { ArgType }, ArgType);
}
/// Build a binary predicate declaration.
static ValueDecl *getBinaryPredicate(Identifier Id, Type ArgType) {
auto &Context = ArgType->getASTContext();
Type 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.empty() || 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;
}
return getBuiltinFunction(Id, { Input }, Output);
}
static const char * const GenericParamNames[] = {
"T",
"U",
"V",
"W",
"X",
"Y",
"Z"
};
static GenericTypeParamDecl*
createGenericParam(ASTContext &ctx, const char *name, unsigned index) {
ModuleDecl *M = ctx.TheBuiltinModule;
Identifier ident = ctx.getIdentifier(name);
SmallVector<ProtocolDecl *, 1> protos;
auto genericParam =
new (ctx) GenericTypeParamDecl(&M->getMainFile(FileUnitKind::Builtin),
ident, SourceLoc(), 0, index);
return genericParam;
}
/// Create a generic parameter list with multiple generic parameters.
static GenericParamList *getGenericParams(ASTContext &ctx,
unsigned numParameters,
SmallVectorImpl<GenericTypeParamDecl*> &genericParams) {
assert(numParameters <= llvm::array_lengthof(GenericParamNames));
assert(genericParams.empty());
for (unsigned i = 0; i != numParameters; ++i)
genericParams.push_back(createGenericParam(ctx, GenericParamNames[i], i));
auto paramList = GenericParamList::create(ctx, SourceLoc(), genericParams,
SourceLoc());
return paramList;
}
namespace {
class BuiltinGenericSignatureBuilder {
public:
ASTContext &Context;
private:
GenericParamList *TheGenericParamList;
SmallVector<GenericTypeParamDecl*, 2> GenericTypeParams;
GenericEnvironment *GenericEnv = nullptr;
SmallVector<AnyFunctionType::Param, 4> InterfaceParams;
Type InterfaceResult;
public:
BuiltinGenericSignatureBuilder(ASTContext &ctx, unsigned numGenericParams = 1)
: Context(ctx) {
TheGenericParamList = getGenericParams(ctx, numGenericParams,
GenericTypeParams);
GenericSignatureBuilder Builder(ctx);
for (auto gp : GenericTypeParams) {
Builder.addGenericParameter(gp);
}
auto GenericSig =
std::move(Builder).computeGenericSignature(SourceLoc());
GenericEnv = GenericSig->createGenericEnvironment();
}
template <class G>
void addParameter(const G &generator,
ValueOwnership ownership = ValueOwnership::Default) {
Type gTyIface = generator.build(*this);
auto flags = ParameterTypeFlags().withValueOwnership(ownership);
InterfaceParams.emplace_back(gTyIface, Identifier(), flags);
}
template <class G>
void setResult(const G &generator) {
InterfaceResult = generator.build(*this);
}
ValueDecl *build(Identifier name) {
return getBuiltinGenericFunction(name, InterfaceParams,
InterfaceResult,
TheGenericParamList,
GenericEnv);
}
// Don't use these generator classes directly; call the make{...}
// functions which follow this class.
struct ConcreteGenerator {
Type TheType;
Type build(BuiltinGenericSignatureBuilder &builder) const {
return TheType;
}
};
struct ParameterGenerator {
unsigned Index;
Type build(BuiltinGenericSignatureBuilder &builder) const {
return builder.GenericTypeParams[Index]->getDeclaredInterfaceType();
}
};
struct LambdaGenerator {
std::function<Type(BuiltinGenericSignatureBuilder &)> TheFunction;
Type build(BuiltinGenericSignatureBuilder &builder) const {
return TheFunction(builder);
}
};
template <class T>
struct MetatypeGenerator {
T Object;
Optional<MetatypeRepresentation> Repr;
Type build(BuiltinGenericSignatureBuilder &builder) const {
return MetatypeType::get(Object.build(builder), Repr);
}
};
};
} // end anonymous namespace
static BuiltinGenericSignatureBuilder::ConcreteGenerator
makeConcrete(Type type) {
return { type };
}
static BuiltinGenericSignatureBuilder::ParameterGenerator
makeGenericParam(unsigned index = 0) {
return { index };
}
template <class... Gs>
static BuiltinGenericSignatureBuilder::LambdaGenerator
makeTuple(const Gs & ...elementGenerators) {
return {
[=](BuiltinGenericSignatureBuilder &builder) -> Type {
TupleTypeElt elts[] = {
elementGenerators.build(builder)...
};
return TupleType::get(elts, builder.Context);
}
};
}
template <class... Gs>
static BuiltinGenericSignatureBuilder::LambdaGenerator
makeBoundGenericType(NominalTypeDecl *decl,
const Gs & ...argumentGenerators) {
return {
[=](BuiltinGenericSignatureBuilder &builder) -> Type {
Type args[] = {
argumentGenerators.build(builder)...
};
return BoundGenericType::get(decl, Type(), args);
}
};
}
template <class T>
static BuiltinGenericSignatureBuilder::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) {
BuiltinGenericSignatureBuilder builder(Context);
builder.addParameter(makeGenericParam());
builder.setResult(makeConcrete(TupleType::getEmpty(Context)));
return builder.build(Id);
}
static ValueDecl *getLoadOperation(ASTContext &Context, Identifier Id) {
BuiltinGenericSignatureBuilder builder(Context);
builder.addParameter(makeConcrete(Context.TheRawPointerType));
builder.setResult(makeGenericParam());
return builder.build(Id);
}
static ValueDecl *getStoreOperation(ASTContext &Context, Identifier Id) {
BuiltinGenericSignatureBuilder builder(Context);
builder.addParameter(makeGenericParam(), ValueOwnership::Owned);
builder.addParameter(makeConcrete(Context.TheRawPointerType));
builder.setResult(makeConcrete(TupleType::getEmpty(Context)));
return builder.build(Id);
}
static ValueDecl *getDestroyOperation(ASTContext &Context, Identifier Id) {
BuiltinGenericSignatureBuilder 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);
BuiltinGenericSignatureBuilder 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);
BuiltinGenericSignatureBuilder 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);
BuiltinGenericSignatureBuilder builder(Context);
builder.addParameter(makeGenericParam(), ValueOwnership::InOut);
builder.setResult(makeConcrete(Int1Ty));
return builder.build(Id);
}
static ValueDecl *getBindMemoryOperation(ASTContext &Context, Identifier Id) {
BuiltinGenericSignatureBuilder builder(Context);
builder.addParameter(makeConcrete(Context.TheRawPointerType));
builder.addParameter(makeConcrete(BuiltinIntegerType::getWordType(Context)));
builder.addParameter(makeMetatype(makeGenericParam()));
builder.setResult(makeConcrete(TupleType::getEmpty(Context)));
return builder.build(Id);
}
static ValueDecl *getAllocWithTailElemsOperation(ASTContext &Context,
Identifier Id,
int NumTailTypes) {
if (NumTailTypes < 1 ||
1 + NumTailTypes > (int)llvm::array_lengthof(GenericParamNames))
return nullptr;
BuiltinGenericSignatureBuilder builder(Context, 1 + NumTailTypes);
builder.addParameter(makeMetatype(makeGenericParam(0)));
for (int Idx = 0; Idx < NumTailTypes; ++Idx) {
builder.addParameter(makeConcrete(BuiltinIntegerType::getWordType(Context)));
builder.addParameter(makeMetatype(makeGenericParam(Idx + 1)));
}
builder.setResult(makeGenericParam(0));
return builder.build(Id);
}
static ValueDecl *getProjectTailElemsOperation(ASTContext &Context,
Identifier Id) {
BuiltinGenericSignatureBuilder builder(Context, 2);
builder.addParameter(makeGenericParam(0));
builder.addParameter(makeMetatype(makeGenericParam(1)));
builder.setResult(makeConcrete(Context.TheRawPointerType));
return builder.build(Id);
}
/// Build a getelementptr operation declaration.
static ValueDecl *getGepOperation(ASTContext &Context, Identifier Id,
Type ArgType) {
BuiltinGenericSignatureBuilder builder(Context, 1);
builder.addParameter(makeConcrete(Context.TheRawPointerType));
builder.addParameter(makeConcrete(ArgType));
builder.addParameter(makeMetatype(makeGenericParam(0)));
builder.setResult(makeConcrete(Context.TheRawPointerType));
return builder.build(Id);
}
static ValueDecl *getGetTailAddrOperation(ASTContext &Context, Identifier Id,
Type ArgType) {
BuiltinGenericSignatureBuilder builder(Context, 2);
builder.addParameter(makeConcrete(Context.TheRawPointerType));
builder.addParameter(makeConcrete(ArgType));
builder.addParameter(makeMetatype(makeGenericParam(0)));
builder.addParameter(makeMetatype(makeGenericParam(1)));
builder.setResult(makeConcrete(Context.TheRawPointerType));
return builder.build(Id);
}
static ValueDecl *getBeginUnpairedAccessOperation(ASTContext &Context,
Identifier Id) {
BuiltinGenericSignatureBuilder builder(Context);
builder.addParameter(makeConcrete(Context.TheRawPointerType));
builder.addParameter(makeConcrete(Context.TheRawPointerType));
builder.addParameter(makeMetatype(makeGenericParam(0)));
builder.setResult(makeConcrete(Context.TheEmptyTupleType));
return builder.build(Id);
}
static ValueDecl *
getPerformInstantaneousReadAccessOperation(ASTContext &Context,
Identifier Id) {
BuiltinGenericSignatureBuilder builder(Context);
builder.addParameter(makeConcrete(Context.TheRawPointerType));
builder.addParameter(makeMetatype(makeGenericParam(0)));
builder.setResult(makeConcrete(Context.TheEmptyTupleType));
return builder.build(Id);
}
static ValueDecl *getEndUnpairedAccessOperation(ASTContext &Context,
Identifier Id) {
return getBuiltinFunction(Id, { Context.TheRawPointerType },
Context.TheEmptyTupleType);
}
static ValueDecl *getSizeOrAlignOfOperation(ASTContext &Context,
Identifier Id) {
BuiltinGenericSignatureBuilder builder(Context);
builder.addParameter(makeMetatype(makeGenericParam()));
builder.setResult(makeConcrete(BuiltinIntegerType::getWordType(Context)));
return builder.build(Id);
}
static ValueDecl *getIsPODOperation(ASTContext &Context, Identifier Id) {
BuiltinGenericSignatureBuilder builder(Context);
builder.addParameter(makeMetatype(makeGenericParam()));
builder.setResult(makeConcrete(BuiltinIntegerType::get(1,Context)));
return builder.build(Id);
}
static ValueDecl *getIsBitwiseTakable(ASTContext &Context, Identifier Id) {
BuiltinGenericSignatureBuilder builder(Context);
builder.addParameter(makeMetatype(makeGenericParam()));
builder.setResult(makeConcrete(BuiltinIntegerType::get(1,Context)));
return builder.build(Id);
}
static ValueDecl *getIsOptionalOperation(ASTContext &Context, Identifier Id) {
BuiltinGenericSignatureBuilder builder(Context);
builder.addParameter(makeMetatype(makeGenericParam()));
builder.setResult(makeConcrete(BuiltinIntegerType::get(1,Context)));
return builder.build(Id);
}
static ValueDecl *getIsSameMetatypeOperation(ASTContext &Context, Identifier Id) {
CanType anyMetatype = CanExistentialMetatypeType::get(Context.TheAnyType);
auto ResultTy = BuiltinIntegerType::get(1,Context);
return getBuiltinFunction(Id, {anyMetatype, anyMetatype}, ResultTy);
}
static ValueDecl *getAllocOperation(ASTContext &Context, Identifier Id) {
Type PtrSizeTy = BuiltinIntegerType::getWordType(Context);
Type ResultTy = Context.TheRawPointerType;
return getBuiltinFunction(Id, { PtrSizeTy, PtrSizeTy }, ResultTy);
}
static ValueDecl *getDeallocOperation(ASTContext &Context, Identifier Id) {
auto PtrSizeTy = BuiltinIntegerType::getWordType(Context);
Type 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()},
Context.getNeverType());
}
static ValueDecl *getCmpXChgOperation(ASTContext &Context, Identifier Id,
Type T) {
Type ArgElts[] = { Context.TheRawPointerType, T, T };
Type BoolTy = BuiltinIntegerType::get(1, Context);
Type ResultTy = TupleType::get({ T, BoolTy }, Context);
return getBuiltinFunction(Id, ArgElts, ResultTy);
}
static ValueDecl *getAtomicRMWOperation(ASTContext &Context, Identifier Id,
Type T) {
return getBuiltinFunction(Id, { Context.TheRawPointerType, T }, T);
}
static ValueDecl *getAtomicLoadOperation(ASTContext &Context, Identifier Id,
Type T) {
return getBuiltinFunction(Id, { Type(Context.TheRawPointerType) }, T);
}
static ValueDecl *getAtomicStoreOperation(ASTContext &Context, Identifier Id,
Type T) {
return getBuiltinFunction(Id, { Context.TheRawPointerType, T },
Context.TheEmptyTupleType);
}
static ValueDecl *getNativeObjectCast(ASTContext &Context, Identifier Id,
BuiltinValueKind BV) {
ValueOwnership ownership;
Type builtinTy;
switch (BV) {
case BuiltinValueKind::CastToNativeObject:
case BuiltinValueKind::UnsafeCastToNativeObject:
case BuiltinValueKind::CastFromNativeObject:
builtinTy = Context.TheNativeObjectType;
ownership = ValueOwnership::Owned;
break;
case BuiltinValueKind::BridgeToRawPointer:
case BuiltinValueKind::BridgeFromRawPointer:
builtinTy = Context.TheRawPointerType;
ownership = ValueOwnership::Default;
break;
default:
llvm_unreachable("unexpected kind");
}
BuiltinGenericSignatureBuilder builder(Context);
if (BV == BuiltinValueKind::CastToNativeObject ||
BV == BuiltinValueKind::UnsafeCastToNativeObject ||
BV == BuiltinValueKind::BridgeToRawPointer) {
builder.addParameter(makeGenericParam(), ownership);
builder.setResult(makeConcrete(builtinTy));
} else {
builder.addParameter(makeConcrete(builtinTy), ownership);
builder.setResult(makeGenericParam());
}
return builder.build(Id);
}
static ValueDecl *getCastToBridgeObjectOperation(ASTContext &C,
Identifier Id) {
auto wordType = BuiltinIntegerType::get(BuiltinIntegerWidth::pointer(),
C);
BuiltinGenericSignatureBuilder builder(C);
builder.addParameter(makeGenericParam(), ValueOwnership::Owned);
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;
switch (BV) {
case BuiltinValueKind::CastReferenceFromBridgeObject: {
BuiltinGenericSignatureBuilder builder(C);
builder.addParameter(makeConcrete(BridgeTy), ValueOwnership::Owned);
builder.setResult(makeGenericParam());
return builder.build(Id);
}
case BuiltinValueKind::CastBitPatternFromBridgeObject: {
Type WordTy = BuiltinIntegerType::get(BuiltinIntegerWidth::pointer(), C);
return getBuiltinFunction(Id, { BridgeTy }, WordTy);
}
default:
llvm_unreachable("not a cast from bridge object op");
}
}
/// ClassifyBridgeObject has type:
/// (Builtin.BridgeObject) -> (Builtin.Int1, Builtin.Int1).
static ValueDecl *getClassifyBridgeObject(ASTContext &C, Identifier Id) {
Type int1Ty = BuiltinIntegerType::get(1, C);
Type resultTy = TupleType::get({
TupleTypeElt(int1Ty, C.getIdentifier("isObjCObject")),
TupleTypeElt(int1Ty, C.getIdentifier("isObjCTaggedPointer"))
}, C);
return getBuiltinFunction(Id, { C.TheBridgeObjectType }, resultTy);
}
static ValueDecl *getValueToBridgeObject(ASTContext &C, Identifier Id) {
BuiltinGenericSignatureBuilder builder(C);
builder.addParameter(makeGenericParam(0));
builder.setResult(makeConcrete(C.TheBridgeObjectType));
return builder.build(Id);
}
static ValueDecl *getUnsafeGuaranteed(ASTContext &C, Identifier Id) {
// <T : AnyObject> T -> (T, Int8Ty)
//
BuiltinGenericSignatureBuilder builder(C);
auto T = makeGenericParam();
builder.addParameter(T);
Type Int8Ty = BuiltinIntegerType::get(8, C);
builder.setResult(makeTuple(T, makeConcrete(Int8Ty)));
return builder.build(Id);
}
static ValueDecl *getUnsafeGuaranteedEnd(ASTContext &C, Identifier Id) {
// Int8Ty -> ()
Type Int8Ty = BuiltinIntegerType::get(8, C);
return getBuiltinFunction(Id, { Int8Ty }, TupleType::getEmpty(C));
}
static ValueDecl *getOnFastPath(ASTContext &Context, Identifier Id) {
return getBuiltinFunction(Id, {}, TupleType::getEmpty(Context));
}
static ValueDecl *getCastReferenceOperation(ASTContext &ctx,
Identifier name) {
// <T, U> T -> U
// SILGen and IRGen check additional constraints during lowering.
BuiltinGenericSignatureBuilder builder(ctx, 2);
builder.addParameter(makeGenericParam(0), ValueOwnership::Owned);
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.
BuiltinGenericSignatureBuilder builder(ctx, 2);
builder.addParameter(makeGenericParam(0), ValueOwnership::Owned);
builder.setResult(makeGenericParam(1));
return builder.build(name);
}
static ValueDecl *getZeroInitializerOperation(ASTContext &Context,
Identifier Id) {
// <T> () -> T
BuiltinGenericSignatureBuilder builder(Context);
builder.setResult(makeGenericParam());
return builder.build(Id);
}
static ValueDecl *getGetObjCTypeEncodingOperation(ASTContext &Context,
Identifier Id) {
// <T> T.Type -> RawPointer
BuiltinGenericSignatureBuilder builder(Context);
builder.addParameter(makeMetatype(makeGenericParam()));
builder.setResult(makeConcrete(Context.TheRawPointerType));
return builder.build(Id);
}
static ValueDecl *getPoundAssert(ASTContext &Context, Identifier Id) {
auto int1Type = BuiltinIntegerType::get(1, Context);
auto optionalRawPointerType = BoundGenericEnumType::get(
Context.getOptionalDecl(), Type(), {Context.TheRawPointerType});
return getBuiltinFunction(Id, {int1Type, optionalRawPointerType},
Context.TheEmptyTupleType);
}
static ValueDecl *getTSanInoutAccess(ASTContext &Context, Identifier Id) {
// <T> T -> ()
BuiltinGenericSignatureBuilder builder(Context);
builder.addParameter(makeGenericParam());
builder.setResult(makeConcrete(Context.TheEmptyTupleType));
return builder.build(Id);
}
static ValueDecl *getAddressOfOperation(ASTContext &Context, Identifier Id) {
// <T> (@inout T) -> RawPointer
BuiltinGenericSignatureBuilder builder(Context);
builder.addParameter(makeGenericParam(), ValueOwnership::InOut);
builder.setResult(makeConcrete(Context.TheRawPointerType));
return builder.build(Id);
}
static ValueDecl *getAddressOfBorrowOperation(ASTContext &Context,
Identifier Id) {
// <T> (T) -> RawPointer
BuiltinGenericSignatureBuilder builder(Context);
builder.addParameter(makeGenericParam());
builder.setResult(makeConcrete(Context.TheRawPointerType));
return builder.build(Id);
}
static ValueDecl *getTypeJoinOperation(ASTContext &Context, Identifier Id) {
// <T,U,V> (T.Type, U.Type) -> V.Type
BuiltinGenericSignatureBuilder builder(Context, 3);
builder.addParameter(makeMetatype(makeGenericParam(0)));
builder.addParameter(makeMetatype(makeGenericParam(1)));
builder.setResult(makeMetatype(makeGenericParam(2)));
return builder.build(Id);
}
static ValueDecl *getTypeJoinInoutOperation(ASTContext &Context,
Identifier Id) {
// <T,U,V> (inout T, U.Type) -> V.Type
BuiltinGenericSignatureBuilder builder(Context, 3);
builder.addParameter(makeGenericParam(0), ValueOwnership::InOut);
builder.addParameter(makeMetatype(makeGenericParam(1)));
builder.setResult(makeMetatype(makeGenericParam(2)));
return builder.build(Id);
}
static ValueDecl *getTypeJoinMetaOperation(ASTContext &Context, Identifier Id) {
// <T,U,V> (T.Type, U.Type) -> V.Type
BuiltinGenericSignatureBuilder builder(Context, 3);
builder.addParameter(makeMetatype(makeGenericParam(0)));
builder.addParameter(makeMetatype(makeGenericParam(1)));
builder.setResult(makeMetatype(makeGenericParam(2)));
return builder.build(Id);
}
static ValueDecl *getCanBeObjCClassOperation(ASTContext &Context,
Identifier Id) {
// <T> T.Type -> Builtin.Int8
BuiltinGenericSignatureBuilder 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);
return getBuiltinFunction(Id, {CondTy}, VoidTy);
}
static ValueDecl *getAssertConfOperation(ASTContext &C, Identifier Id) {
// () -> Int32
auto Int32Ty = BuiltinIntegerType::get(32, C);
return getBuiltinFunction(Id, {}, Int32Ty);
}
static ValueDecl *getFixLifetimeOperation(ASTContext &C, Identifier Id) {
// <T> T -> ()
BuiltinGenericSignatureBuilder 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;
Type ResultTy = VecTy->getElementType();
return getBuiltinFunction(Id, { VecTy, IndexTy }, 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;
Type ArgElts[] = { VecTy, ElementTy, IndexTy };
return getBuiltinFunction(Id, ArgElts, VecTy);
}
static ValueDecl *getStaticReportOperation(ASTContext &Context, Identifier Id) {
auto BoolTy = BuiltinIntegerType::get(1, Context);
auto MessageTy = Context.TheRawPointerType;
Type 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,
bool AllowLiteral) {
auto InTy = InputTy->getAs<AnyBuiltinIntegerType>();
auto OutTy = OutputTy->getAs<BuiltinIntegerType>();
if (!InTy || !OutTy)
return nullptr;
if (isa<BuiltinIntegerLiteralType>(InTy)) {
if (!AllowLiteral)
return nullptr;
} else if (cast<BuiltinIntegerType>(InTy)->getLeastWidth()
< OutTy->getGreatestWidth()) {
return nullptr;
}
Type OverflowBitTy = BuiltinIntegerType::get(1, Context);
TupleTypeElt ResultElts[] = { Type(OutTy), OverflowBitTy };
Type ResultTy = TupleType::get(ResultElts, Context);
return getBuiltinFunction(Id, { InTy }, ResultTy);
}
static ValueDecl *getIntToFPWithOverflowOperation(ASTContext &Context,
Identifier Id, Type InputTy,
Type OutputTy) {
auto InTy = InputTy->getAs<BuiltinIntegerLiteralType>();
auto OutTy = OutputTy->getAs<BuiltinFloatType>();
if (!InTy || !OutTy)
return nullptr;
return getBuiltinFunction(Id, { InTy }, OutTy);
}
static ValueDecl *getUnreachableOperation(ASTContext &Context,
Identifier Id) {
auto NeverTy = Context.getNeverType();
if (!NeverTy)
return nullptr;
// () -> Never
return getBuiltinFunction(Id, {}, NeverTy);
}
static ValueDecl *getOnceOperation(ASTContext &Context,
Identifier Id,
bool withContext) {
// (RawPointer, @convention(c) ([Context]) -> ()[, Context]) -> ()
auto HandleTy = Context.TheRawPointerType;
auto VoidTy = Context.TheEmptyTupleType;
auto Thin = FunctionType::ExtInfo(FunctionTypeRepresentation::CFunctionPointer,
/*throws*/ false);
if (withContext) {
auto ContextTy = Context.TheRawPointerType;
auto ContextArg = FunctionType::Param(ContextTy);
auto BlockTy = FunctionType::get({ContextArg}, VoidTy, Thin);
return getBuiltinFunction(Id, {HandleTy, BlockTy, ContextTy}, VoidTy);
} else {
auto BlockTy = FunctionType::get({}, VoidTy, Thin);
return getBuiltinFunction(Id, {HandleTy, BlockTy}, VoidTy);
}
}
/// An array of the overloaded builtin kinds.
static const OverloadedBuiltinKind OverloadedBuiltinKinds[] = {
OverloadedBuiltinKind::None,
// There's deliberately no BUILTIN clause here so that we'll blow up
// if new builtin categories are added there and not here.
#define BUILTIN_CAST_OPERATION(id, attrs, name) \
OverloadedBuiltinKind::Special,
#define BUILTIN_CAST_OR_BITCAST_OPERATION(id, attrs, name) \
OverloadedBuiltinKind::Special,
#define BUILTIN_BINARY_OPERATION(id, name, attrs, overload) \
OverloadedBuiltinKind::overload,
#define BUILTIN_BINARY_OPERATION_WITH_OVERFLOW(id, name, _, attrs, overload) \
OverloadedBuiltinKind::overload,
#define BUILTIN_BINARY_PREDICATE(id, name, attrs, overload) \
OverloadedBuiltinKind::overload,
#define BUILTIN_UNARY_OPERATION(id, name, attrs, overload) \
OverloadedBuiltinKind::overload,
#define BUILTIN_SIL_OPERATION(id, name, overload) \
OverloadedBuiltinKind::overload,
#define BUILTIN_MISC_OPERATION(id, name, attrs, overload) \
OverloadedBuiltinKind::overload,
#define BUILTIN_SANITIZER_OPERATION(id, name, attrs) \
OverloadedBuiltinKind::None,
#define BUILTIN_TYPE_CHECKER_OPERATION(id, name) OverloadedBuiltinKind::Special,
#define BUILTIN_TYPE_TRAIT_OPERATION(id, name) \
OverloadedBuiltinKind::Special,
#define BUILTIN_RUNTIME_CALL(id, attrs, name) \
OverloadedBuiltinKind::Special,
#include "swift/AST/Builtins.def"
};
/// Determines if a builtin type falls within the given category.
inline bool isBuiltinTypeOverloaded(Type T, OverloadedBuiltinKind OK) {
switch (OK) {
case OverloadedBuiltinKind::None:
return false; // always fail.
case OverloadedBuiltinKind::Integer:
return T->is<BuiltinIntegerType>();
case OverloadedBuiltinKind::IntegerOrVector:
return T->is<BuiltinIntegerType>() ||
(T->is<BuiltinVectorType>() &&
T->castTo<BuiltinVectorType>()->getElementType()
->is<BuiltinIntegerType>());
case OverloadedBuiltinKind::IntegerOrRawPointer:
return T->is<BuiltinIntegerType>() || T->is<BuiltinRawPointerType>();
case OverloadedBuiltinKind::IntegerOrRawPointerOrVector:
return T->is<BuiltinIntegerType>() || T->is<BuiltinRawPointerType>() ||
(T->is<BuiltinVectorType>() &&
T->castTo<BuiltinVectorType>()->getElementType()
->is<BuiltinIntegerType>());
case OverloadedBuiltinKind::Float:
return T->is<BuiltinFloatType>();
case OverloadedBuiltinKind::FloatOrVector:
return T->is<BuiltinFloatType>() ||
(T->is<BuiltinVectorType>() &&
T->castTo<BuiltinVectorType>()->getElementType()
->is<BuiltinFloatType>());
case OverloadedBuiltinKind::Special:
return true;
}
llvm_unreachable("bad overloaded builtin kind");
}
/// Table of string intrinsic names indexed by enum value.
static const char *const IntrinsicNameTable[] = {
"not_intrinsic",
#define GET_INTRINSIC_NAME_TABLE
#include "llvm/IR/IntrinsicImpl.inc"
#undef GET_INTRINSIC_NAME_TABLE
};
#define GET_INTRINSIC_TARGET_DATA
#include "llvm/IR/IntrinsicImpl.inc"
#undef GET_INTRINSIC_TARGET_DATA
llvm::Intrinsic::ID swift::getLLVMIntrinsicID(StringRef InName) {
using namespace llvm;
// Swift intrinsic names start with int_.
if (!InName.startswith("int_"))
return llvm::Intrinsic::not_intrinsic;
InName = InName.drop_front(strlen("int_"));
// Prepend "llvm." and change _ to . in name.
SmallString<128> NameS;
NameS.append("llvm.");
for (char C : InName)
NameS.push_back(C == '_' ? '.' : C);
const char *Name = NameS.c_str();
ArrayRef<const char *> NameTable(&IntrinsicNameTable[1],
TargetInfos[1].Offset);
int Idx = Intrinsic::lookupLLVMIntrinsicByName(NameTable, Name);
return static_cast<Intrinsic::ID>(Idx + 1);
}
llvm::Intrinsic::ID
swift::getLLVMIntrinsicIDForBuiltinWithOverflow(BuiltinValueKind ID) {
switch (ID) {
default: break;
case BuiltinValueKind::SAddOver:
return llvm::Intrinsic::sadd_with_overflow;
case BuiltinValueKind::UAddOver:
return llvm::Intrinsic::uadd_with_overflow;
case BuiltinValueKind::SSubOver:
return llvm::Intrinsic::ssub_with_overflow;
case BuiltinValueKind::USubOver:
return llvm::Intrinsic::usub_with_overflow;
case BuiltinValueKind::SMulOver:
return llvm::Intrinsic::smul_with_overflow;
case BuiltinValueKind::UMulOver:
return llvm::Intrinsic::umul_with_overflow;
}
llvm_unreachable("Cannot convert the overflow builtin to llvm intrinsic.");
}
static Type DecodeIntrinsicType(ArrayRef<llvm::Intrinsic::IITDescriptor> &Table,
ArrayRef<Type> Tys, ASTContext &Context) {
typedef llvm::Intrinsic::IITDescriptor IITDescriptor;
IITDescriptor D = Table.front();
Table = Table.slice(1);
switch (D.Kind) {
default:
llvm_unreachable("Unhandled case");
case IITDescriptor::Half:
case IITDescriptor::MMX:
case IITDescriptor::Metadata:
case IITDescriptor::Vector:
case IITDescriptor::ExtendArgument:
case IITDescriptor::TruncArgument:
case IITDescriptor::VarArg:
// These types cannot be expressed in swift yet.
return Type();
case IITDescriptor::Void: return TupleType::getEmpty(Context);
case IITDescriptor::Float: return Context.TheIEEE32Type;
case IITDescriptor::Double: return Context.TheIEEE64Type;
case IITDescriptor::Integer:
return BuiltinIntegerType::get(D.Integer_Width, Context);
case IITDescriptor::Pointer:
if (D.Pointer_AddressSpace)
return Type(); // Reject non-default address space pointers.
// Decode but ignore the pointee. Just decode all IR pointers to unsafe
// pointer type.
(void)DecodeIntrinsicType(Table, Tys, Context);
return Context.TheRawPointerType;
case IITDescriptor::Argument:
if (D.getArgumentNumber() >= Tys.size())
return Type();
return Tys[D.getArgumentNumber()];
case IITDescriptor::Struct: {
SmallVector<TupleTypeElt, 5> Elts;
for (unsigned i = 0; i != D.Struct_NumElements; ++i) {
Type T = DecodeIntrinsicType(Table, Tys, Context);
if (!T) return Type();
Elts.push_back(T);
}
return TupleType::get(Elts, Context);
}
}
llvm_unreachable("unhandled");
}
/// \returns true on success, false on failure.
static bool
getSwiftFunctionTypeForIntrinsic(llvm::Intrinsic::ID ID,
ArrayRef<Type> TypeArgs,
ASTContext &Context,
SmallVectorImpl<Type> &ArgElts,
Type &ResultTy) {
typedef llvm::Intrinsic::IITDescriptor IITDescriptor;
SmallVector<IITDescriptor, 8> Table;
getIntrinsicInfoTableEntries(ID, Table);
ArrayRef<IITDescriptor> TableRef = Table;
// Decode the intrinsic's LLVM IR type, and map it to swift builtin types.
ResultTy = DecodeIntrinsicType(TableRef, TypeArgs, Context);
if (!ResultTy)
return false;
while (!TableRef.empty()) {
Type ArgTy = DecodeIntrinsicType(TableRef, TypeArgs, Context);
if (!ArgTy)
return false;
ArgElts.push_back(ArgTy);
}
// Translate LLVM function attributes to Swift function attributes.
llvm::AttributeList attrs =
llvm::Intrinsic::getAttributes(getGlobalLLVMContext(), ID);
if (attrs.hasAttribute(llvm::AttributeList::FunctionIndex,
llvm::Attribute::NoReturn)) {
ResultTy = Context.getNeverType();
if (!ResultTy)
return false;
}
return true;
}
static bool isValidFenceOrdering(StringRef Ordering) {
return Ordering == "acquire" || Ordering == "release" ||
Ordering == "acqrel" || Ordering == "seqcst";
}
static bool isValidRMWOrdering(StringRef Ordering) {
return Ordering == "unordered" || Ordering == "monotonic" ||
Ordering == "acquire" || Ordering == "release" ||
Ordering == "acqrel" || Ordering == "seqcst";
}
static bool isValidLoadOrdering(StringRef Ordering) {
return Ordering == "unordered" || Ordering == "monotonic" ||
Ordering == "acquire" ||
Ordering == "seqcst";
}
static bool isValidStoreOrdering(StringRef Ordering) {
return Ordering == "unordered" || Ordering == "monotonic" ||
Ordering == "release" ||
Ordering == "seqcst";
}
llvm::AtomicOrdering swift::decodeLLVMAtomicOrdering(StringRef O) {
using namespace llvm;
return StringSwitch<AtomicOrdering>(O)
.Case("unordered", AtomicOrdering::Unordered)
.Case("monotonic", AtomicOrdering::Monotonic)
.Case("acquire", AtomicOrdering::Acquire)
.Case("release", AtomicOrdering::Release)
.Case("acqrel", AtomicOrdering::AcquireRelease)
.Case("seqcst", AtomicOrdering::SequentiallyConsistent)
.Default(AtomicOrdering::NotAtomic);
}
static bool isUnknownOrUnordered(llvm::AtomicOrdering ordering) {
using namespace llvm;
switch (ordering) {
case AtomicOrdering::NotAtomic:
case AtomicOrdering::Unordered:
return true;
case AtomicOrdering::Monotonic:
case AtomicOrdering::Acquire:
case AtomicOrdering::Release:
case AtomicOrdering::AcquireRelease:
case AtomicOrdering::SequentiallyConsistent:
return false;
}
llvm_unreachable("Unhandled AtomicOrdering in switch.");
}
static bool isValidCmpXChgOrdering(StringRef SuccessString,
StringRef FailureString) {
using namespace llvm;
AtomicOrdering SuccessOrdering = decodeLLVMAtomicOrdering(SuccessString);
AtomicOrdering FailureOrdering = decodeLLVMAtomicOrdering(FailureString);
// Unordered and unknown values are not allowed.
if (isUnknownOrUnordered(SuccessOrdering) ||
isUnknownOrUnordered(FailureOrdering))
return false;
// Success must be at least as strong as failure.
if (!isAtLeastOrStrongerThan(SuccessOrdering, FailureOrdering))
return false;
// Failure may not release because no store occurred.
if (FailureOrdering == AtomicOrdering::Release ||
FailureOrdering == AtomicOrdering::AcquireRelease)
return false;
return true;
}
ValueDecl *swift::getBuiltinValueDecl(ASTContext &Context, Identifier Id) {
SmallVector<Type, 4> Types;
StringRef OperationName = getBuiltinBaseName(Context, Id.str(), Types);
// If this is the name of an LLVM intrinsic, cons up a swift function with a
// type that matches the IR types.
if (llvm::Intrinsic::ID ID = getLLVMIntrinsicID(OperationName)) {
SmallVector<Type, 8> ArgElts;
Type ResultTy;
if (getSwiftFunctionTypeForIntrinsic(ID, Types, Context, ArgElts, ResultTy))
return getBuiltinFunction(Id, ArgElts, ResultTy);
}
// If this starts with fence, we have special suffixes to handle.
if (OperationName.startswith("fence_")) {
OperationName = OperationName.drop_front(strlen("fence_"));
// Verify we have a single integer, floating point, or pointer type.
if (!Types.empty()) return nullptr;
// Get and validate the ordering argument, which is required.
auto Underscore = OperationName.find('_');
if (!isValidFenceOrdering(OperationName.substr(0, Underscore)))
return nullptr;
OperationName = OperationName.substr(Underscore);
// Accept singlethread if present.
if (OperationName.startswith("_singlethread"))
OperationName = OperationName.drop_front(strlen("_singlethread"));
// Nothing else is allowed in the name.
if (!OperationName.empty())
return nullptr;
return getFenceOperation(Context, Id);
}
// If this starts with cmpxchg, we have special suffixes to handle.
if (OperationName.startswith("cmpxchg_")) {
OperationName = OperationName.drop_front(strlen("cmpxchg_"));
// Verify we have a single integer, floating point, or pointer type.
if (Types.size() != 1) return nullptr;
Type T = Types[0];
if (!T->is<BuiltinIntegerType>() && !T->is<BuiltinRawPointerType>() &&
!T->is<BuiltinFloatType>())
return nullptr;
// Get and validate the ordering arguments, which are both required.
SmallVector<StringRef, 4> Parts;
OperationName.split(Parts, "_");
if (Parts.size() < 2)
return nullptr;
if (!isValidCmpXChgOrdering(Parts[0], Parts[1]))
return nullptr;
auto NextPart = Parts.begin() + 2;
// Accept weak, volatile, and singlethread if present.
if (NextPart != Parts.end() && *NextPart == "weak")
NextPart++;
if (NextPart != Parts.end() && *NextPart == "volatile")
NextPart++;
if (NextPart != Parts.end() && *NextPart == "singlethread")
NextPart++;
// Nothing else is allowed in the name.
if (NextPart != Parts.end())
return nullptr;
return getCmpXChgOperation(Context, Id, T);
}
// If this starts with atomicrmw, we have special suffixes to handle.
if (OperationName.startswith("atomicrmw_")) {
OperationName = OperationName.drop_front(strlen("atomicrmw_"));
// Verify we have a single integer or pointer type.
if (Types.size() != 1) return nullptr;
Type Ty = Types[0];
if (!Ty->is<BuiltinIntegerType>() && !Ty->is<BuiltinRawPointerType>())
return nullptr;
// Get and validate the suboperation name, which is required.
auto Underscore = OperationName.find('_');
if (Underscore == StringRef::npos) return nullptr;
StringRef SubOp = OperationName.substr(0, Underscore);
if (SubOp != "xchg" && SubOp != "add" && SubOp != "sub" && SubOp != "and" &&
SubOp != "nand" && SubOp != "or" && SubOp != "xor" && SubOp != "max" &&
SubOp != "min" && SubOp != "umax" && SubOp != "umin")
return nullptr;
OperationName = OperationName.drop_front(Underscore+1);
// Get and validate the ordering argument, which is required.
Underscore = OperationName.find('_');
if (!isValidRMWOrdering(OperationName.substr(0, Underscore)))
return nullptr;
OperationName = OperationName.substr(Underscore);
// Accept volatile and singlethread if present.
if (OperationName.startswith("_volatile"))
OperationName = OperationName.drop_front(strlen("_volatile"));
if (OperationName.startswith("_singlethread"))
OperationName = OperationName.drop_front(strlen("_singlethread"));
// Nothing else is allowed in the name.
if (!OperationName.empty())
return nullptr;
return getAtomicRMWOperation(Context, Id, Ty);
}
// If this starts with atomicload or atomicstore, we have special suffixes to
// handle.
if (OperationName.startswith("atomicload_")) {
OperationName = OperationName.drop_front(strlen("atomicload_"));
// Verify we have a single integer, floating point, or pointer type.
if (Types.size() != 1) return nullptr;
Type T = Types[0];
if (!T->is<BuiltinIntegerType>() && !T->is<BuiltinRawPointerType>() &&
!T->is<BuiltinFloatType>())
return nullptr;
// Get and validate the ordering argument, which is required.
auto Underscore = OperationName.find('_');
if (!isValidLoadOrdering(OperationName.substr(0, Underscore)))
return nullptr;
OperationName = OperationName.substr(Underscore);
// Accept volatile and singlethread if present.
if (OperationName.startswith("_volatile"))
OperationName = OperationName.drop_front(strlen("_volatile"));
if (OperationName.startswith("_singlethread"))
OperationName = OperationName.drop_front(strlen("_singlethread"));
// Nothing else is allowed in the name.
if (!OperationName.empty())
return nullptr;
return getAtomicLoadOperation(Context, Id, T);
}
if (OperationName.startswith("atomicstore_")) {
OperationName = OperationName.drop_front(strlen("atomicstore_"));
// Verify we have a single integer, floating point, or pointer type.
if (Types.size() != 1) return nullptr;
Type T = Types[0];
if (!T->is<BuiltinIntegerType>() && !T->is<BuiltinRawPointerType>() &&
!T->is<BuiltinFloatType>())
return nullptr;
// Get and validate the ordering argument, which is required.
auto Underscore = OperationName.find('_');
if (!isValidStoreOrdering(OperationName.substr(0, Underscore)))
return nullptr;
OperationName = OperationName.substr(Underscore);
// Accept volatile and singlethread if present.
if (OperationName.startswith("_volatile"))
OperationName = OperationName.drop_front(strlen("_volatile"));
if (OperationName.startswith("_singlethread"))
OperationName = OperationName.drop_front(strlen("_singlethread"));
// Nothing else is allowed in the name.
if (!OperationName.empty())
return nullptr;
return getAtomicStoreOperation(Context, Id, T);
}
if (OperationName.startswith("allocWithTailElems_")) {
OperationName = OperationName.drop_front(strlen("allocWithTailElems_"));
int NumTailTypes = 0;
if (OperationName.getAsInteger(10, NumTailTypes))
return nullptr;
return getAllocWithTailElemsOperation(Context, Id, NumTailTypes);
}
auto BV = llvm::StringSwitch<BuiltinValueKind>(OperationName)
#define BUILTIN(id, name, Attrs) .Case(name, BuiltinValueKind::id)
#include "swift/AST/Builtins.def"
.Default(BuiltinValueKind::None);
// Filter out inappropriate overloads.
OverloadedBuiltinKind OBK = OverloadedBuiltinKinds[unsigned(BV)];
// Verify that all types match the overload filter.
for (Type T : Types)
if (!isBuiltinTypeOverloaded(T, OBK))
return nullptr;
switch (BV) {
case BuiltinValueKind::Fence:
case BuiltinValueKind::CmpXChg:
case BuiltinValueKind::AtomicRMW:
case BuiltinValueKind::AtomicLoad:
case BuiltinValueKind::AtomicStore:
case BuiltinValueKind::AllocWithTailElems:
llvm_unreachable("Handled above");
case BuiltinValueKind::None: return nullptr;
case BuiltinValueKind::GepRaw:
if (Types.size() != 1) return nullptr;
return getGepRawOperation(Id, Types[0]);
case BuiltinValueKind::StringObjectOr:
if (Types.size() != 1)
return nullptr;
return getStringObjectOrOperation(Id, Types[0]);
case BuiltinValueKind::Gep:
if (Types.size() != 1) return nullptr;
return getGepOperation(Context, Id, Types[0]);
case BuiltinValueKind::GetTailAddr:
if (Types.size() != 1) return nullptr;
return getGetTailAddrOperation(Context, Id, Types[0]);
case BuiltinValueKind::PerformInstantaneousReadAccess:
if (!Types.empty()) return nullptr;
return getPerformInstantaneousReadAccessOperation(Context, Id);
case BuiltinValueKind::BeginUnpairedModifyAccess:
if (!Types.empty()) return nullptr;
return getBeginUnpairedAccessOperation(Context, Id);
case BuiltinValueKind::EndUnpairedAccess:
if (!Types.empty()) return nullptr;
return getEndUnpairedAccessOperation(Context, Id);
#define BUILTIN(id, name, Attrs)
#define BUILTIN_BINARY_OPERATION(id, name, attrs, overload) case BuiltinValueKind::id:
#include "swift/AST/Builtins.def"
if (Types.size() != 1) return nullptr;
return getBinaryOperation(Id, Types[0]);
#define BUILTIN(id, name, Attrs)
#define BUILTIN_BINARY_OPERATION_WITH_OVERFLOW(id, name, _, attrs, overload) case BuiltinValueKind::id:
#include "swift/AST/Builtins.def"
if (Types.size() != 1) return nullptr;
return getBinaryOperationWithOverflow(Id, Types[0]);
#define BUILTIN(id, name, Attrs)
#define BUILTIN_BINARY_PREDICATE(id, name, attrs, overload) case BuiltinValueKind::id:
#include "swift/AST/Builtins.def"
if (Types.size() != 1) return nullptr;
return getBinaryPredicate(Id, Types[0]);
#define BUILTIN(id, name, Attrs)
#define BUILTIN_UNARY_OPERATION(id, name, attrs, overload) case BuiltinValueKind::id:
#include "swift/AST/Builtins.def"
if (Types.size() != 1) return nullptr;
return getUnaryOperation(Id, Types[0]);
#define BUILTIN(id, name, Attrs)
#define BUILTIN_CAST_OPERATION(id, name, attrs) case BuiltinValueKind::id:
#define BUILTIN_CAST_OR_BITCAST_OPERATION(id, name, attrs) case BuiltinValueKind::id:
#include "swift/AST/Builtins.def"
return getCastOperation(Context, Id, BV, Types);
case BuiltinValueKind::Retain:
case BuiltinValueKind::Release:
case BuiltinValueKind::Autorelease:
if (!Types.empty()) return nullptr;
return getRefCountingOperation(Context, Id);
case BuiltinValueKind::Load:
case BuiltinValueKind::LoadRaw:
case BuiltinValueKind::LoadInvariant:
case BuiltinValueKind::Take:
if (!Types.empty()) return nullptr;
return getLoadOperation(Context, Id);
case BuiltinValueKind::Destroy:
if (!Types.empty()) return nullptr;
return getDestroyOperation(Context, Id);
case BuiltinValueKind::Assign:
case BuiltinValueKind::Init:
if (!Types.empty()) return nullptr;
return getStoreOperation(Context, Id);
case BuiltinValueKind::DestroyArray:
if (!Types.empty()) return nullptr;
return getDestroyArrayOperation(Context, Id);
case BuiltinValueKind::CopyArray:
case BuiltinValueKind::TakeArrayNoAlias:
case BuiltinValueKind::TakeArrayFrontToBack:
case BuiltinValueKind::TakeArrayBackToFront:
case BuiltinValueKind::AssignCopyArrayNoAlias:
case BuiltinValueKind::AssignCopyArrayFrontToBack:
case BuiltinValueKind::AssignCopyArrayBackToFront:
case BuiltinValueKind::AssignTakeArray:
if (!Types.empty()) return nullptr;
return getTransferArrayOperation(Context, Id);
case BuiltinValueKind::IsUnique:
case BuiltinValueKind::IsUnique_native:
if (!Types.empty()) return nullptr;
return getIsUniqueOperation(Context, Id);
case BuiltinValueKind::BindMemory:
if (!Types.empty()) return nullptr;
return getBindMemoryOperation(Context, Id);
case BuiltinValueKind::ProjectTailElems:
if (!Types.empty()) return nullptr;
return getProjectTailElemsOperation(Context, Id);
case BuiltinValueKind::Sizeof:
case BuiltinValueKind::Strideof:
case BuiltinValueKind::Alignof:
return getSizeOrAlignOfOperation(Context, Id);
case BuiltinValueKind::IsPOD:
return getIsPODOperation(Context, Id);
case BuiltinValueKind::IsBitwiseTakable:
return getIsBitwiseTakable(Context, Id);
case BuiltinValueKind::IsOptionalType:
return getIsOptionalOperation(Context, Id);
case BuiltinValueKind::IsSameMetatype:
return getIsSameMetatypeOperation(Context, Id);
case BuiltinValueKind::AllocRaw:
return getAllocOperation(Context, Id);
case BuiltinValueKind::DeallocRaw:
return getDeallocOperation(Context, Id);
case BuiltinValueKind::CastToNativeObject:
case BuiltinValueKind::UnsafeCastToNativeObject:
case BuiltinValueKind::CastFromNativeObject:
case BuiltinValueKind::BridgeToRawPointer:
case BuiltinValueKind::BridgeFromRawPointer:
if (!Types.empty()) return nullptr;
return getNativeObjectCast(Context, Id, BV);
case BuiltinValueKind::CastToBridgeObject:
if (!Types.empty()) return nullptr;
return getCastToBridgeObjectOperation(Context, Id);
case BuiltinValueKind::CastReferenceFromBridgeObject:
case BuiltinValueKind::CastBitPatternFromBridgeObject:
if (!Types.empty()) return nullptr;
return getCastFromBridgeObjectOperation(Context, Id, BV);
case BuiltinValueKind::CastReference:
if (!Types.empty()) return nullptr;
return getCastReferenceOperation(Context, Id);
case BuiltinValueKind::ReinterpretCast:
if (!Types.empty()) return nullptr;
return getReinterpretCastOperation(Context, Id);
case BuiltinValueKind::AddressOf:
if (!Types.empty()) return nullptr;
return getAddressOfOperation(Context, Id);
case BuiltinValueKind::AddressOfBorrow:
if (!Types.empty()) return nullptr;
return getAddressOfBorrowOperation(Context, Id);
case BuiltinValueKind::CondFail:
return getCondFailOperation(Context, Id);
case BuiltinValueKind::AssertConf:
return getAssertConfOperation(Context, Id);
case BuiltinValueKind::FixLifetime:
return getFixLifetimeOperation(Context, Id);
case BuiltinValueKind::CanBeObjCClass:
return getCanBeObjCClassOperation(Context, Id);
case BuiltinValueKind::CondUnreachable:
case BuiltinValueKind::Unreachable:
return getUnreachableOperation(Context, Id);
case BuiltinValueKind::ZeroInitializer:
return getZeroInitializerOperation(Context, Id);
case BuiltinValueKind::Once:
case BuiltinValueKind::OnceWithContext:
return getOnceOperation(Context, Id, BV == BuiltinValueKind::OnceWithContext);
case BuiltinValueKind::WillThrow:
case BuiltinValueKind::ErrorInMain:
return getVoidErrorOperation(Context, Id);
case BuiltinValueKind::UnexpectedError:
return getUnexpectedErrorOperation(Context, Id);
case BuiltinValueKind::ExtractElement:
if (Types.size() != 2) return nullptr;
return getExtractElementOperation(Context, Id, Types[0], Types[1]);
case BuiltinValueKind::InsertElement:
if (Types.size() != 3) return nullptr;
return getInsertElementOperation(Context, Id, Types[0], Types[1], Types[2]);
case BuiltinValueKind::StaticReport:
if (!Types.empty()) return nullptr;
return getStaticReportOperation(Context, Id);
case BuiltinValueKind::SToSCheckedTrunc:
case BuiltinValueKind::SToUCheckedTrunc:
if (Types.size() != 2) return nullptr;
return getCheckedTruncOperation(Context, Id, Types[0], Types[1], true);
case BuiltinValueKind::UToSCheckedTrunc:
case BuiltinValueKind::UToUCheckedTrunc:
if (Types.size() != 2) return nullptr;
return getCheckedTruncOperation(Context, Id, Types[0], Types[1], false);
case BuiltinValueKind::ClassifyBridgeObject:
if (!Types.empty()) return nullptr;
return getClassifyBridgeObject(Context, Id);
case BuiltinValueKind::ValueToBridgeObject:
if (!Types.empty())
return nullptr;
return getValueToBridgeObject(Context, Id);
case BuiltinValueKind::UnsafeGuaranteed:
return getUnsafeGuaranteed(Context, Id);
case BuiltinValueKind::UnsafeGuaranteedEnd:
return getUnsafeGuaranteedEnd(Context, Id);
case BuiltinValueKind::OnFastPath:
return getOnFastPath(Context, Id);
case BuiltinValueKind::IntToFPWithOverflow:
if (Types.size() != 2) return nullptr;
return getIntToFPWithOverflowOperation(Context, Id, Types[0], Types[1]);
case BuiltinValueKind::GetObjCTypeEncoding:
return getGetObjCTypeEncodingOperation(Context, Id);
case BuiltinValueKind::PoundAssert:
return getPoundAssert(Context, Id);
case BuiltinValueKind::TSanInoutAccess:
return getTSanInoutAccess(Context, Id);
case BuiltinValueKind::Swift3ImplicitObjCEntrypoint:
return getBuiltinFunction(Id,
{},
TupleType::getEmpty(Context));
case BuiltinValueKind::TypeJoin:
return getTypeJoinOperation(Context, Id);
case BuiltinValueKind::TypeJoinInout:
return getTypeJoinInoutOperation(Context, Id);
case BuiltinValueKind::TypeJoinMeta:
return getTypeJoinMetaOperation(Context, Id);
}
llvm_unreachable("bad builtin value!");
}
StringRef swift::getBuiltinName(BuiltinValueKind ID) {
switch (ID) {
case BuiltinValueKind::None:
llvm_unreachable("no builtin kind");
#define BUILTIN(Id, Name, Attrs) \
case BuiltinValueKind::Id: \
return Name;
#include "swift/AST/Builtins.def"
}
llvm_unreachable("bad BuiltinValueKind");
}
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