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a174aa4dfe
Preparation to fix <rdar://problem/18151694> Add Builtin.checkUnique
to avoid lost Array copies.
This adds the following new builtins:
isUnique : <T> (inout T[?]) -> Int1
isUniqueOrPinned : <T> (inout T[?]) -> Int1
These builtins take an inout object reference and return a
boolean. Passing the reference inout forces the optimizer to preserve
a retain distinct from what’s required to maintain lifetime for any of
the reference's source-level copies, because the called function is
allowed to replace the reference, thereby releasing the referent.
Before this change, the API entry points for uniqueness checking
already took an inout reference. However, after full inlining, it was
possible for two source-level variables that reference the same object
to appear to be the same variable from the optimizer's perspective
because an address to the variable was longer taken at the point of
checking uniqueness. Consequently the optimizer could remove
"redundant" copies which were actually needed to implement
copy-on-write semantics. With a builtin, the variable whose reference
is being checked for uniqueness appears mutable at the level of an
individual SIL instruction.
The kind of reference count checking that Builtin.isUnique performs
depends on the argument type:
- Native object types are directly checked by reading the
strong reference count:
(Builtin.NativeObject, known native class reference)
- Objective-C object types require an additional check that the
dynamic object type uses native swift reference counting:
(Builtin.UnknownObject, unknown class reference, class existential)
- Bridged object types allow the dymanic object type check to be
bypassed based on the pointer encoding:
(Builtin.BridgeObject)
Any of the above types may also be wrapped in an optional. If the
static argument type is optional, then a null check is also performed.
Thus, isUnique only returns true for non-null, native swift object
references with a strong reference count of one.
isUniqueOrPinned has the same semantics as isUnique except that it
also returns true if the object is marked pinned regardless of the
reference count. This allows for simultaneous non-structural
modification of multiple subobjects.
In some cases, the standard library can dynamically determine that it
has a native reference even though the static type is a bridge or
unknown object. Unsafe variants of the builtin are available to allow
the additional pointer bit mask and dynamic class lookup to be
bypassed in these cases:
isUnique_native : <T> (inout T[?]) -> Int1
isUniqueOrPinned_native : <T> (inout T[?]) -> Int1
These builtins perform an implicit cast to NativeObject before
checking uniqueness. There’s no way at SIL level to cast the address
of a reference, so we need to encapsulate this operation as part of
the builtin.
Swift SVN r27887
1587 lines
57 KiB
C++
1587 lines
57 KiB
C++
//===--- Builtins.cpp - Swift Language Builtin ASTs -----------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See http://swift.org/LICENSE.txt for license information
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// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the interface to the Builtin APIs.
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//
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//===----------------------------------------------------------------------===//
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#include "swift/AST/Builtins.h"
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#include "swift/AST/AST.h"
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#include "llvm/ADT/SmallString.h"
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#include "llvm/ADT/StringSwitch.h"
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#include "llvm/IR/Attributes.h"
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#include "llvm/IR/Instructions.h"
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#include "llvm/IR/Intrinsics.h"
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#include "llvm/IR/LLVMContext.h"
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#include <cstring>
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#include <tuple>
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using namespace swift;
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struct BuiltinExtraInfoTy {
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const char *Attributes;
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};
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static const BuiltinExtraInfoTy BuiltinExtraInfo[] = {
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{0},
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#define BUILTIN(Id, Name, Attrs) {Attrs},
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#include "swift/AST/Builtins.def"
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};
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bool BuiltinInfo::isReadNone() const {
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return strchr(BuiltinExtraInfo[(unsigned)ID].Attributes, 'n') != 0;
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}
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bool IntrinsicInfo::hasAttribute(llvm::Attribute::AttrKind Kind) const {
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// FIXME: We should not be relying on the global LLVM context.
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llvm::AttributeSet attrs
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= llvm::Intrinsic::getAttributes(llvm::getGlobalContext(), ID);
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return (attrs.hasAttribute(llvm::AttributeSet::FunctionIndex, Kind));
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}
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Type swift::getBuiltinType(ASTContext &Context, StringRef Name) {
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// Vectors are VecNxT, where "N" is the number of elements and
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// T is the element type.
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if (Name.startswith("Vec")) {
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Name = Name.substr(3);
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StringRef::size_type xPos = Name.find('x');
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if (xPos == StringRef::npos)
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return Type();
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unsigned numElements;
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if (Name.substr(0, xPos).getAsInteger(10, numElements) ||
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numElements == 0 || numElements > 1024)
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return Type();
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Type elementType = getBuiltinType(Context, Name.substr(xPos + 1));
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if (!elementType)
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return Type();
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return BuiltinVectorType::get(Context, elementType, numElements);
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}
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if (Name == "RawPointer")
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return Context.TheRawPointerType;
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if (Name == "NativeObject")
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return Context.TheNativeObjectType;
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if (Name == "UnknownObject")
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return Context.TheUnknownObjectType;
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if (Name == "BridgeObject")
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return Context.TheBridgeObjectType;
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if (Name == "UnsafeValueBuffer")
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return Context.TheUnsafeValueBufferType;
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if (Name == "FPIEEE32")
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return Context.TheIEEE32Type;
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if (Name == "FPIEEE64")
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return Context.TheIEEE64Type;
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if (Name == "Word")
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return BuiltinIntegerType::getWordType(Context);
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// Handle 'int8' and friends.
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if (Name.substr(0, 3) == "Int") {
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unsigned BitWidth;
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if (!Name.substr(3).getAsInteger(10, BitWidth) &&
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BitWidth <= 2048 && BitWidth != 0) // Cap to prevent insane things.
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return BuiltinIntegerType::get(BitWidth, Context);
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}
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// Target specific FP types.
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if (Name == "FPIEEE16")
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return Context.TheIEEE16Type;
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if (Name == "FPIEEE80")
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return Context.TheIEEE80Type;
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if (Name == "FPIEEE128")
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return Context.TheIEEE128Type;
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if (Name == "FPPPC128")
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return Context.ThePPC128Type;
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return Type();
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}
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/// getBuiltinBaseName - Decode the type list of a builtin (e.g. mul_Int32) and
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/// return the base name (e.g. "mul").
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StringRef swift::getBuiltinBaseName(ASTContext &C, StringRef Name,
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SmallVectorImpl<Type> &Types) {
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// builtin-id ::= operation-id ('_' type-id)*
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for (StringRef::size_type Underscore = Name.find_last_of('_');
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Underscore != StringRef::npos; Underscore = Name.find_last_of('_')) {
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// Check that the type parameter is well-formed and set it up for returning.
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// This allows operations with underscores in them, like "icmp_eq".
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Type Ty = getBuiltinType(C, Name.substr(Underscore + 1));
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if (Ty.isNull()) break;
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Types.push_back(Ty);
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Name = Name.substr(0, Underscore);
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}
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std::reverse(Types.begin(), Types.end());
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return Name;
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}
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/// Build a builtin function declaration.
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static FuncDecl *
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getBuiltinFunction(Identifier Id,
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ArrayRef<TupleTypeElt> ArgTypes,
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Type ResType,
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FunctionType::ExtInfo Info = FunctionType::ExtInfo()) {
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auto &Context = ResType->getASTContext();
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Type ArgType = TupleType::get(ArgTypes, Context);
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Type FnType;
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FnType = FunctionType::get(ArgType, ResType, Info);
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Module *M = Context.TheBuiltinModule;
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DeclContext *DC = &M->getMainFile(FileUnitKind::Builtin);
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SmallVector<TuplePatternElt, 4> ParamPatternElts;
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for (auto &ArgTupleElt : ArgTypes) {
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auto PD = new (Context) ParamDecl(/*IsLet*/true, SourceLoc(),
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Identifier(), SourceLoc(),
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Identifier(), ArgTupleElt.getType(),
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DC);
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PD->setImplicit();
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Pattern *Pat = new (Context) NamedPattern(PD, /*implicit=*/true);
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Pat = new (Context) TypedPattern(Pat,
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TypeLoc::withoutLoc(ArgTupleElt.getType()), /*implicit=*/true);
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PD->setParamParentPattern(Pat);
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ParamPatternElts.push_back(TuplePatternElt(Pat));
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}
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Pattern *ParamPattern = TuplePattern::createSimple(
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Context, SourceLoc(), ParamPatternElts, SourceLoc());
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llvm::SmallVector<Identifier, 2> ArgNames(ParamPattern->numTopLevelVariables(),
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Identifier());
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DeclName Name(Context, Id, ArgNames);
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auto FD = FuncDecl::create(Context, SourceLoc(), StaticSpellingKind::None,
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SourceLoc(), Name, SourceLoc(), SourceLoc(),
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/*GenericParams=*/nullptr, FnType, ParamPattern,
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TypeLoc::withoutLoc(ResType),
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DC);
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FD->setImplicit();
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FD->setAccessibility(Accessibility::Public);
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return FD;
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}
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/// Build a builtin function declaration.
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static FuncDecl *
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getBuiltinGenericFunction(Identifier Id,
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ArrayRef<TupleTypeElt> ArgParamTypes,
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ArrayRef<TupleTypeElt> ArgBodyTypes,
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Type ResType,
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Type ResBodyType,
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GenericParamList *GenericParams,
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FunctionType::ExtInfo Info = FunctionType::ExtInfo()) {
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assert(GenericParams && "Missing generic parameters");
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auto &Context = ResType->getASTContext();
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Type ArgParamType = TupleType::get(ArgParamTypes, Context);
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Type ArgBodyType = TupleType::get(ArgBodyTypes, Context);
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// Compute the function type.
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Type FnType = PolymorphicFunctionType::get(ArgBodyType, ResBodyType,
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GenericParams, Info);
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// Compute the interface type.
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SmallVector<GenericTypeParamType *, 1> GenericParamTypes;
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for (auto gp : *GenericParams) {
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GenericParamTypes.push_back(gp->getDeclaredType()
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->castTo<GenericTypeParamType>());
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}
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// Create witness markers for all of the generic param types.
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SmallVector<Requirement, 2> requirements;
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for (auto param : GenericParamTypes) {
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requirements.push_back(Requirement(RequirementKind::WitnessMarker,
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param, Type()));
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}
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GenericSignature *Sig = GenericSignature::get(GenericParamTypes,requirements);
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Type InterfaceType = GenericFunctionType::get(Sig,
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ArgParamType, ResType,
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Info);
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Module *M = Context.TheBuiltinModule;
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DeclContext *DC = &M->getMainFile(FileUnitKind::Builtin);
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SmallVector<TuplePatternElt, 4> ParamPatternElts;
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for (auto &ArgTupleElt : ArgBodyTypes) {
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auto PD = new (Context) ParamDecl(/*IsLet*/true, SourceLoc(),
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Identifier(), SourceLoc(),
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Identifier(), ArgTupleElt.getType(),
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DC);
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PD->setImplicit();
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Pattern *Pat = new (Context) NamedPattern(PD, /*implicit=*/true);
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Pat = new (Context) TypedPattern(Pat,
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TypeLoc::withoutLoc(ArgTupleElt.getType()), /*implicit=*/true);
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PD->setParamParentPattern(Pat);
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ParamPatternElts.push_back(TuplePatternElt(Pat));
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}
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Pattern *ParamPattern = TuplePattern::createSimple(
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Context, SourceLoc(), ParamPatternElts, SourceLoc());
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llvm::SmallVector<Identifier, 2> ArgNames(
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ParamPattern->numTopLevelVariables(),
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Identifier());
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DeclName Name(Context, Id, ArgNames);
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auto func = FuncDecl::create(Context, SourceLoc(), StaticSpellingKind::None,
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SourceLoc(), Name,
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SourceLoc(), SourceLoc(), GenericParams, FnType,
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ParamPattern, TypeLoc::withoutLoc(ResBodyType),
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DC);
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func->setInterfaceType(InterfaceType);
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func->setImplicit();
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func->setAccessibility(Accessibility::Public);
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return func;
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}
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/// Build a getelementptr operation declaration.
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static ValueDecl *getGepOperation(Identifier Id, Type ArgType) {
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auto &Context = ArgType->getASTContext();
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// This is always "(i8*, IntTy) -> i8*"
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TupleTypeElt ArgElts[] = { Context.TheRawPointerType, ArgType };
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Type ResultTy = Context.TheRawPointerType;
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return getBuiltinFunction(Id, ArgElts, ResultTy);
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}
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/// Build a binary operation declaration.
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static ValueDecl *getBinaryOperation(Identifier Id, Type ArgType) {
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TupleTypeElt ArgElts[] = { ArgType, ArgType };
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Type ResultTy = ArgType;
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return getBuiltinFunction(Id, ArgElts, ResultTy);
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}
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/// Build a declaration for a binary operation with overflow.
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static ValueDecl *getBinaryOperationWithOverflow(Identifier Id,
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Type ArgType) {
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auto &Context = ArgType->getASTContext();
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Type ShouldCheckForOverflowTy = BuiltinIntegerType::get(1, Context);
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TupleTypeElt ArgElts[] = { ArgType, ArgType, ShouldCheckForOverflowTy };
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Type OverflowBitTy = BuiltinIntegerType::get(1, Context);
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TupleTypeElt ResultElts[] = { ArgType, OverflowBitTy };
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Type ResultTy = TupleType::get(ResultElts, Context);
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return getBuiltinFunction(Id, ArgElts, ResultTy);
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}
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static ValueDecl *getUnaryOperation(Identifier Id, Type ArgType) {
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TupleTypeElt ArgElts[] = { ArgType };
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Type ResultTy = ArgType;
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return getBuiltinFunction(Id, ArgElts, ResultTy);
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}
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/// Build a binary predicate declaration.
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static ValueDecl *getBinaryPredicate(Identifier Id, Type ArgType) {
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auto &Context = ArgType->getASTContext();
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TupleTypeElt ArgElts[] = { ArgType, ArgType };
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Type ResultTy = BuiltinIntegerType::get(1, Context);
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if (auto VecTy = ArgType->getAs<BuiltinVectorType>()) {
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ResultTy = BuiltinVectorType::get(Context, ResultTy,
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VecTy->getNumElements());
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}
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return getBuiltinFunction(Id, ArgElts, ResultTy);
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}
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/// Build a cast. There is some custom type checking here.
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static ValueDecl *getCastOperation(ASTContext &Context, Identifier Id,
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BuiltinValueKind VK,
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ArrayRef<Type> Types) {
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if (Types.size() == 0 || Types.size() > 2) return nullptr;
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Type Input = Types[0];
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Type Output = Types.size() == 2 ? Types[1] : Type();
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// If both types are vectors, look through the vectors.
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Type CheckInput = Input;
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Type CheckOutput = Output;
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bool UnwrappedVector = false;
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auto InputVec = Input->getAs<BuiltinVectorType>();
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auto OutputVec = Output.isNull()? nullptr :Output->getAs<BuiltinVectorType>();
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if (InputVec && OutputVec &&
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InputVec->getNumElements() == OutputVec->getNumElements()) {
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UnwrappedVector = true;
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CheckInput = InputVec->getElementType();
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CheckOutput = OutputVec->getElementType();
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}
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// Custom type checking. We know the one or two types have been subjected to
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// the "isBuiltinTypeOverloaded" predicate successfully.
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switch (VK) {
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default: llvm_unreachable("Not a cast operation");
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case BuiltinValueKind::Trunc:
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if (CheckOutput.isNull() ||
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!CheckInput->is<BuiltinIntegerType>() ||
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!CheckOutput->is<BuiltinIntegerType>() ||
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CheckInput->castTo<BuiltinIntegerType>()->getLeastWidth() <=
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CheckOutput->castTo<BuiltinIntegerType>()->getGreatestWidth())
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return nullptr;
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break;
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case BuiltinValueKind::TruncOrBitCast:
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if (CheckOutput.isNull() ||
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!CheckInput->is<BuiltinIntegerType>() ||
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!CheckOutput->is<BuiltinIntegerType>() ||
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CheckInput->castTo<BuiltinIntegerType>()->getLeastWidth() <
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CheckOutput->castTo<BuiltinIntegerType>()->getGreatestWidth())
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return nullptr;
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break;
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case BuiltinValueKind::ZExt:
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case BuiltinValueKind::SExt: {
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if (CheckOutput.isNull() ||
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!CheckInput->is<BuiltinIntegerType>() ||
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!CheckOutput->is<BuiltinIntegerType>() ||
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CheckInput->castTo<BuiltinIntegerType>()->getGreatestWidth() >=
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CheckOutput->castTo<BuiltinIntegerType>()->getLeastWidth())
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return nullptr;
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break;
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}
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case BuiltinValueKind::ZExtOrBitCast:
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case BuiltinValueKind::SExtOrBitCast: {
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if (CheckOutput.isNull() ||
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!CheckInput->is<BuiltinIntegerType>() ||
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!CheckOutput->is<BuiltinIntegerType>() ||
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CheckInput->castTo<BuiltinIntegerType>()->getGreatestWidth() >
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CheckOutput->castTo<BuiltinIntegerType>()->getLeastWidth())
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return nullptr;
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break;
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}
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case BuiltinValueKind::FPToUI:
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case BuiltinValueKind::FPToSI:
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if (CheckOutput.isNull() || !CheckInput->is<BuiltinFloatType>() ||
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!CheckOutput->is<BuiltinIntegerType>())
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return nullptr;
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break;
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case BuiltinValueKind::UIToFP:
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case BuiltinValueKind::SIToFP:
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if (CheckOutput.isNull() || !CheckInput->is<BuiltinIntegerType>() ||
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!CheckOutput->is<BuiltinFloatType>())
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return nullptr;
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break;
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case BuiltinValueKind::FPTrunc:
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if (CheckOutput.isNull() ||
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!CheckInput->is<BuiltinFloatType>() ||
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!CheckOutput->is<BuiltinFloatType>() ||
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CheckInput->castTo<BuiltinFloatType>()->getFPKind() <=
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CheckOutput->castTo<BuiltinFloatType>()->getFPKind())
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return nullptr;
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break;
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case BuiltinValueKind::FPExt:
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if (CheckOutput.isNull() ||
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!CheckInput->is<BuiltinFloatType>() ||
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!CheckOutput->is<BuiltinFloatType>() ||
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CheckInput->castTo<BuiltinFloatType>()->getFPKind() >=
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CheckOutput->castTo<BuiltinFloatType>()->getFPKind())
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return nullptr;
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break;
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case BuiltinValueKind::PtrToInt:
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// FIXME: Do we care about vectors of pointers?
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if (!CheckOutput.isNull() || !CheckInput->is<BuiltinIntegerType>() ||
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UnwrappedVector)
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return nullptr;
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Output = Input;
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Input = Context.TheRawPointerType;
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break;
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case BuiltinValueKind::IntToPtr:
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// FIXME: Do we care about vectors of pointers?
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if (!CheckOutput.isNull() || !CheckInput->is<BuiltinIntegerType>() ||
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UnwrappedVector)
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return nullptr;
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Output = Context.TheRawPointerType;
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break;
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case BuiltinValueKind::BitCast:
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if (CheckOutput.isNull()) return nullptr;
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// Support float <-> int bitcast where the types are the same widths.
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if (auto *BIT = CheckInput->getAs<BuiltinIntegerType>())
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if (auto *BFT = CheckOutput->getAs<BuiltinFloatType>())
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if (BIT->isFixedWidth() && BIT->getFixedWidth() == BFT->getBitWidth())
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break;
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if (auto *BFT = CheckInput->getAs<BuiltinFloatType>())
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if (auto *BIT = CheckOutput->getAs<BuiltinIntegerType>())
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if (BIT->isFixedWidth() && BIT->getFixedWidth() == BFT->getBitWidth())
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break;
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// FIXME: Implement bitcast typechecking.
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llvm_unreachable("Bitcast not supported yet!");
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return nullptr;
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}
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TupleTypeElt ArgElts[] = { Input };
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return getBuiltinFunction(Id, ArgElts, Output);
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}
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|
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static const char * const GenericParamNames[] = {
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"T",
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"U",
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};
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static std::pair<ArchetypeType*, GenericTypeParamDecl*>
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createGenericParam(ASTContext &ctx, const char *name, unsigned index) {
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Module *M = ctx.TheBuiltinModule;
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Identifier ident = ctx.getIdentifier(name);
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ArchetypeType *archetype
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= 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 *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 *getWillThrowOperation(ASTContext &Context, Identifier Id) {
|
|
return getBuiltinFunction(Id, {}, TupleType::getEmpty(Context));
|
|
}
|
|
|
|
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 *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 *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, () -> ()) -> ()
|
|
|
|
auto HandleTy = Context.TheRawPointerType;
|
|
auto VoidTy = Context.TheEmptyTupleType;
|
|
auto BlockTy = FunctionType::get(VoidTy, VoidTy);
|
|
|
|
TupleTypeElt InFields[] = {HandleTy, BlockTy};
|
|
auto OutTy = VoidTy;
|
|
|
|
return getBuiltinFunction(Id, InFields, OutTy);
|
|
}
|
|
|
|
static ValueDecl *getTryPinOperation(ASTContext &ctx, Identifier name) {
|
|
// <T> NativeObject -> T
|
|
// (T must actually be NativeObject?)
|
|
GenericSignatureBuilder builder(ctx);
|
|
builder.addParameter(makeConcrete(ctx.TheNativeObjectType));
|
|
builder.setResult(makeGenericParam());
|
|
return builder.build(name);
|
|
}
|
|
|
|
static ValueDecl *getProjectValueBufferOperation(ASTContext &ctx,
|
|
Identifier name) {
|
|
// <T> (inout Builtin.UnsafeValueBuffer, T.Type) -> Builtin.RawPointer
|
|
GenericSignatureBuilder builder(ctx);
|
|
builder.addParameter(makeConcrete(
|
|
InOutType::get(ctx.TheUnsafeValueBufferType)));
|
|
builder.addParameter(makeMetatype(makeGenericParam()));
|
|
builder.setResult(makeConcrete(ctx.TheRawPointerType));
|
|
return builder.build(name);
|
|
}
|
|
|
|
static ValueDecl *getDeallocValueBufferOperation(ASTContext &ctx,
|
|
Identifier name) {
|
|
// <T> (inout Builtin.UnsafeValueBuffer, T.Type) -> ()
|
|
GenericSignatureBuilder builder(ctx);
|
|
builder.addParameter(makeConcrete(
|
|
InOutType::get(ctx.TheUnsafeValueBufferType)));
|
|
builder.addParameter(makeMetatype(makeGenericParam()));
|
|
builder.setResult(makeConcrete(ctx.TheRawPointerType));
|
|
return builder.build(name);
|
|
}
|
|
|
|
static ValueDecl *
|
|
getMakeMaterializeForSetCallbackOperation(ASTContext &ctx, Identifier name) {
|
|
// <T> ((Builtin.RawPointer,
|
|
// inout Builtin.UnsafeValueBuffer,
|
|
// inout T,
|
|
// T.Type) -> ())
|
|
// ->
|
|
// @convention(thin) ((Builtin.RawPointer,
|
|
// inout Builtin.UnsafeValueBuffer,
|
|
// inout T,
|
|
// @thick T.Type) -> ())
|
|
GenericSignatureBuilder builder(ctx);
|
|
builder.addParameter(
|
|
makeFunction(
|
|
makeTuple(makeConcrete(ctx.TheRawPointerType),
|
|
makeConcrete(InOutType::get(ctx.TheUnsafeValueBufferType)),
|
|
makeInOut(makeGenericParam()),
|
|
makeMetatype(makeGenericParam())),
|
|
makeConcrete(TupleType::getEmpty(ctx))));
|
|
builder.setResult(
|
|
makeFunction(
|
|
makeTuple(makeConcrete(ctx.TheRawPointerType),
|
|
makeConcrete(InOutType::get(ctx.TheUnsafeValueBufferType)),
|
|
makeInOut(makeGenericParam()),
|
|
makeMetatype(makeGenericParam(), MetatypeRepresentation::Thick)),
|
|
makeConcrete(TupleType::getEmpty(ctx)),
|
|
FunctionType::ExtInfo()
|
|
.withRepresentation(FunctionType::Representation::Thin)));
|
|
return builder.build(name);
|
|
}
|
|
|
|
/// 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_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");
|
|
}
|
|
|
|
/// getLLVMIntrinsicID - Given an LLVM IR intrinsic name with argument types
|
|
/// removed (e.g. like "bswap") return the LLVM IR IntrinsicID for the intrinsic
|
|
/// or 0 if the intrinsic name doesn't match anything.
|
|
unsigned swift::getLLVMIntrinsicID(StringRef InName, bool hasArgTypes) {
|
|
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);
|
|
if (hasArgTypes)
|
|
NameS.push_back('.');
|
|
|
|
const char *Name = NameS.c_str();
|
|
unsigned Len = NameS.size();
|
|
#define GET_FUNCTION_RECOGNIZER
|
|
#include "llvm/IR/Intrinsics.gen"
|
|
#undef GET_FUNCTION_RECOGNIZER
|
|
return llvm::Intrinsic::not_intrinsic;
|
|
}
|
|
|
|
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(unsigned iid, ArrayRef<Type> TypeArgs,
|
|
ASTContext &Context,
|
|
SmallVectorImpl<TupleTypeElt> &ArgElts,
|
|
Type &ResultTy, FunctionType::ExtInfo &Info) {
|
|
llvm::Intrinsic::ID ID = (llvm::Intrinsic::ID)iid;
|
|
|
|
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::AttributeSet attrs
|
|
= llvm::Intrinsic::getAttributes(llvm::getGlobalContext(), ID);
|
|
Info = FunctionType::ExtInfo();
|
|
if (attrs.hasAttribute(llvm::AttributeSet::FunctionIndex,
|
|
llvm::Attribute::NoReturn))
|
|
Info = Info.withIsNoReturn(true);
|
|
|
|
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";
|
|
}
|
|
|
|
/// decodeLLVMAtomicOrdering - turn a string like "release" into the LLVM enum.
|
|
static llvm::AtomicOrdering decodeLLVMAtomicOrdering(StringRef O) {
|
|
using namespace llvm;
|
|
return StringSwitch<AtomicOrdering>(O)
|
|
.Case("unordered", Unordered)
|
|
.Case("monotonic", Monotonic)
|
|
.Case("acquire", Acquire)
|
|
.Case("release", Release)
|
|
.Case("acqrel", AcquireRelease)
|
|
.Case("seqcst", SequentiallyConsistent)
|
|
.Default(NotAtomic);
|
|
}
|
|
|
|
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 (SuccessOrdering <= Unordered || FailureOrdering <= Unordered)
|
|
return false;
|
|
// Success must be at least as strong as failure.
|
|
if (SuccessOrdering < FailureOrdering)
|
|
return false;
|
|
// Failure may not release because no store occurred.
|
|
if (FailureOrdering == Release || FailureOrdering == 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 (unsigned ID = getLLVMIntrinsicID(OperationName, !Types.empty())) {
|
|
SmallVector<TupleTypeElt, 8> ArgElts;
|
|
Type ResultTy;
|
|
FunctionType::ExtInfo Info;
|
|
if (getSwiftFunctionTypeForIntrinsic(ID, Types, Context, ArgElts, ResultTy,
|
|
Info))
|
|
return getBuiltinFunction(Id, ArgElts, ResultTy, Info);
|
|
}
|
|
|
|
// 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, floating point, 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);
|
|
}
|
|
|
|
BuiltinValueKind 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:
|
|
llvm_unreachable("Handled above");
|
|
case BuiltinValueKind::None: return nullptr;
|
|
|
|
case BuiltinValueKind::Gep:
|
|
if (Types.size() != 1) return nullptr;
|
|
return getGepOperation(Id, Types[0]);
|
|
|
|
#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:
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#include "swift/AST/Builtins.def"
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if (Types.size() != 1) return nullptr;
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return getUnaryOperation(Id, Types[0]);
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#define BUILTIN(id, name, Attrs)
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#define BUILTIN_CAST_OPERATION(id, name, attrs) case BuiltinValueKind::id:
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#define BUILTIN_CAST_OR_BITCAST_OPERATION(id, name, attrs) case BuiltinValueKind::id:
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#include "swift/AST/Builtins.def"
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return getCastOperation(Context, Id, BV, Types);
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case BuiltinValueKind::TryPin:
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return getTryPinOperation(Context, Id);
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case BuiltinValueKind::Retain:
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case BuiltinValueKind::Release:
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case BuiltinValueKind::Autorelease:
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case BuiltinValueKind::Unpin:
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if (!Types.empty()) return nullptr;
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return getRefCountingOperation(Context, Id);
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case BuiltinValueKind::Load:
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case BuiltinValueKind::Take:
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if (!Types.empty()) return nullptr;
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return getLoadOperation(Context, Id);
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case BuiltinValueKind::Destroy:
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if (!Types.empty()) return nullptr;
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return getDestroyOperation(Context, Id);
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case BuiltinValueKind::Assign:
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case BuiltinValueKind::Init:
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if (!Types.empty()) return nullptr;
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return getStoreOperation(Context, Id);
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case BuiltinValueKind::DestroyArray:
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if (!Types.empty()) return nullptr;
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return getDestroyArrayOperation(Context, Id);
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case BuiltinValueKind::CopyArray:
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case BuiltinValueKind::TakeArrayFrontToBack:
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case BuiltinValueKind::TakeArrayBackToFront:
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if (!Types.empty()) return nullptr;
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return getTransferArrayOperation(Context, Id);
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case BuiltinValueKind::IsUnique:
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case BuiltinValueKind::IsUniqueOrPinned:
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case BuiltinValueKind::IsUnique_native:
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case BuiltinValueKind::IsUniqueOrPinned_native:
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if (!Types.empty()) return nullptr;
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return getIsUniqueOperation(Context, Id);
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case BuiltinValueKind::Sizeof:
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case BuiltinValueKind::Strideof:
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case BuiltinValueKind::Alignof:
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case BuiltinValueKind::StrideofNonZero:
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return getSizeOrAlignOfOperation(Context, Id);
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case BuiltinValueKind::AllocRaw:
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return getAllocOperation(Context, Id);
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case BuiltinValueKind::DeallocRaw:
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return getDeallocOperation(Context, Id);
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case BuiltinValueKind::MarkDependence:
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return getMarkDependenceOperation(Context, Id);
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case BuiltinValueKind::CastToNativeObject:
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case BuiltinValueKind::CastFromNativeObject:
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case BuiltinValueKind::CastToUnknownObject:
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case BuiltinValueKind::CastFromUnknownObject:
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case BuiltinValueKind::BridgeToRawPointer:
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case BuiltinValueKind::BridgeFromRawPointer:
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if (!Types.empty()) return nullptr;
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return getNativeObjectCast(Context, Id, BV);
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case BuiltinValueKind::CastToBridgeObject:
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if (!Types.empty()) return nullptr;
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return getCastToBridgeObjectOperation(Context, Id);
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case BuiltinValueKind::CastReferenceFromBridgeObject:
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case BuiltinValueKind::CastBitPatternFromBridgeObject:
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if (!Types.empty()) return nullptr;
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return getCastFromBridgeObjectOperation(Context, Id, BV);
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case BuiltinValueKind::ReinterpretCast:
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if (!Types.empty()) return nullptr;
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return getReinterpretCastOperation(Context, Id);
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case BuiltinValueKind::AllocValueBuffer:
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case BuiltinValueKind::ProjectValueBuffer:
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if (!Types.empty()) return nullptr;
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return getProjectValueBufferOperation(Context, Id);
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case BuiltinValueKind::DeallocValueBuffer:
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if (!Types.empty()) return nullptr;
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return getDeallocValueBufferOperation(Context, Id);
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case BuiltinValueKind::MakeMaterializeForSetCallback:
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if (!Types.empty()) return nullptr;
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return getMakeMaterializeForSetCallbackOperation(Context, Id);
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case BuiltinValueKind::AddressOf:
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if (!Types.empty()) return nullptr;
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return getAddressOfOperation(Context, Id);
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case BuiltinValueKind::CondFail:
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return getCondFailOperation(Context, Id);
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case BuiltinValueKind::AssertConf:
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return getAssertConfOperation(Context, Id);
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case BuiltinValueKind::FixLifetime:
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return getFixLifetimeOperation(Context, Id);
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case BuiltinValueKind::CanBeObjCClass:
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return getCanBeObjCClassOperation(Context, Id);
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case BuiltinValueKind::CondUnreachable:
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case BuiltinValueKind::Unreachable:
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return getUnreachableOperation(Context, Id);
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case BuiltinValueKind::ZeroInitializer:
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return getZeroInitializerOperation(Context, Id);
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case BuiltinValueKind::Once:
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return getOnceOperation(Context, Id);
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case BuiltinValueKind::WillThrow:
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return getWillThrowOperation(Context, Id);
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case BuiltinValueKind::ExtractElement:
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if (Types.size() != 2) return nullptr;
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return getExtractElementOperation(Context, Id, Types[0], Types[1]);
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case BuiltinValueKind::InsertElement:
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if (Types.size() != 3) return nullptr;
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return getInsertElementOperation(Context, Id, Types[0], Types[1], Types[2]);
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case BuiltinValueKind::StaticReport:
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if (!Types.empty()) return nullptr;
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return getStaticReportOperation(Context, Id);
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case BuiltinValueKind::UToSCheckedTrunc:
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case BuiltinValueKind::SToSCheckedTrunc:
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case BuiltinValueKind::SToUCheckedTrunc:
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case BuiltinValueKind::UToUCheckedTrunc:
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if (Types.size() != 2) return nullptr;
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return getCheckedTruncOperation(Context, Id, Types[0], Types[1]);
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case BuiltinValueKind::SUCheckedConversion:
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case BuiltinValueKind::USCheckedConversion:
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if (Types.size() != 1) return nullptr;
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return getCheckedConversionOperation(Context, Id, Types[0]);
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case BuiltinValueKind::IntToFPWithOverflow:
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if (Types.size() != 2) return nullptr;
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return getIntToFPWithOverflowOperation(Context, Id, Types[0], Types[1]);
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}
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llvm_unreachable("bad builtin value!");
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}
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StringRef swift::getBuiltinName(BuiltinValueKind ID) {
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switch (ID) {
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case BuiltinValueKind::None:
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llvm_unreachable("no builtin kind");
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#define BUILTIN(Id, Name, Attrs) \
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case BuiltinValueKind::Id: \
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return Name;
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#include "swift/AST/Builtins.def"
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}
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llvm_unreachable("bad BuiltinValueKind");
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}
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