Files
swift-mirror/lib/SIL/Utils/SILBridging.cpp
Joe Groff da4e72cf2d SIL verifier: The atInstruction/atArgument parameter to require should not be optional.
The underlying C++ code expects a non-null `Instruction*` or `SILArgument*` pointer, and
most of the contextual information in a verifier error is derived from these arguments,
so it doesn't really make sense for the Swift level interface to present these arguments
as optional.
2025-12-10 10:27:56 -08:00

937 lines
37 KiB
C++

//===--- SILBridging.cpp --------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2023 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
//
//===----------------------------------------------------------------------===//
#include "swift/SIL/SILBridging.h"
#ifdef PURE_BRIDGING_MODE
// In PURE_BRIDGING_MODE, briding functions are not inlined and therefore inluded in the cpp file.
#include "swift/SIL/SILBridgingImpl.h"
#endif
#include "swift/AST/Attr.h"
#include "swift/AST/SemanticAttrs.h"
#include "swift/Basic/Assertions.h"
#include "swift/SIL/SILContext.h"
#include "swift/SIL/SILCloner.h"
#include "swift/SIL/TypeSubstCloner.h"
#include "swift/SIL/MemAccessUtils.h"
#include "swift/SIL/OwnershipUtils.h"
#include "swift/SIL/ParseTestSpecification.h"
#include "swift/SIL/SILBuilder.h"
#include "swift/SIL/SILGlobalVariable.h"
#include "swift/SIL/SILNode.h"
#include "swift/SIL/Test.h"
#include <string>
#include <cstring>
#include <stdio.h>
using namespace swift;
namespace {
bool nodeMetatypesInitialized = false;
// Filled in by class registration in initializeSwiftModules().
SwiftMetatype nodeMetatypes[(unsigned)SILNodeKind::Last_SILNode + 1];
}
bool swiftModulesInitialized() {
return nodeMetatypesInitialized;
}
// Does return null if initializeSwiftModules() is never called.
SwiftMetatype SILNode::getSILNodeMetatype(SILNodeKind kind) {
SwiftMetatype metatype = nodeMetatypes[(unsigned)kind];
if (nodeMetatypesInitialized && !metatype) {
ABORT([&](auto &out) {
out << "Instruction " << getSILInstructionName((SILInstructionKind)kind)
<< " not registered";
});
}
return metatype;
}
//===----------------------------------------------------------------------===//
// Class registration
//===----------------------------------------------------------------------===//
static llvm::StringMap<SILNodeKind> valueNamesToKind;
/// Registers the metatype of a swift SIL class.
/// Called by initializeSwiftModules().
void registerBridgedClass(BridgedStringRef bridgedClassName, SwiftMetatype metatype) {
StringRef className = bridgedClassName.unbridged();
nodeMetatypesInitialized = true;
// Handle the important non Node classes.
if (className == "BasicBlock")
return SILBasicBlock::registerBridgedMetatype(metatype);
if (className == "GlobalVariable")
return SILGlobalVariable::registerBridgedMetatype(metatype);
if (className == "Argument") {
nodeMetatypes[(unsigned)SILNodeKind::SILPhiArgument] = metatype;
return;
}
if (className == "FunctionArgument") {
nodeMetatypes[(unsigned)SILNodeKind::SILFunctionArgument] = metatype;
return;
}
if (valueNamesToKind.empty()) {
#define VALUE(ID, PARENT) \
valueNamesToKind[#ID] = SILNodeKind::ID;
#define NON_VALUE_INST(ID, NAME, PARENT, MEMBEHAVIOR, MAYRELEASE) \
VALUE(ID, NAME)
#define ARGUMENT(ID, PARENT) \
VALUE(ID, NAME)
#define SINGLE_VALUE_INST(ID, NAME, PARENT, MEMBEHAVIOR, MAYRELEASE) \
VALUE(ID, NAME)
#define MULTIPLE_VALUE_INST(ID, NAME, PARENT, MEMBEHAVIOR, MAYRELEASE) \
VALUE(ID, NAME)
#include "swift/SIL/SILNodes.def"
}
std::string prefixedName;
auto iter = valueNamesToKind.find(className);
if (iter == valueNamesToKind.end()) {
// Try again with a "SIL" prefix. For example Argument -> SILArgument.
prefixedName = std::string("SIL") + std::string(className);
iter = valueNamesToKind.find(prefixedName);
if (iter == valueNamesToKind.end()) {
ABORT([&](auto &out) {
out << "Unknown bridged node class " << className;
});
}
className = prefixedName;
}
SILNodeKind kind = iter->second;
SwiftMetatype existingTy = nodeMetatypes[(unsigned)kind];
if (existingTy) {
ABORT([&](auto &out) {
out << "Double registration of class " << className;
});
}
nodeMetatypes[(unsigned)kind] = metatype;
}
//===----------------------------------------------------------------------===//
// Test
//===----------------------------------------------------------------------===//
void registerTest(BridgedStringRef name, void *nativeSwiftContext) {
swift::test::FunctionTest::createNativeSwiftFunctionTest(
name.unbridged(), nativeSwiftContext, /*isSILTest=*/ true);
}
bool BridgedTestArguments::hasUntaken() const {
return arguments->hasUntaken();
}
BridgedStringRef BridgedTestArguments::takeString() const {
return arguments->takeString();
}
bool BridgedTestArguments::takeBool() const { return arguments->takeBool(); }
SwiftInt BridgedTestArguments::takeInt() const { return arguments->takeUInt(); }
BridgedOperand BridgedTestArguments::takeOperand() const {
return {arguments->takeOperand()};
}
BridgedValue BridgedTestArguments::takeValue() const {
return {arguments->takeValue()};
}
BridgedInstruction BridgedTestArguments::takeInstruction() const {
return {arguments->takeInstruction()->asSILNode()};
}
BridgedArgument BridgedTestArguments::takeArgument() const {
return {arguments->takeBlockArgument()};
}
BridgedBasicBlock BridgedTestArguments::takeBlock() const {
return {arguments->takeBlock()};
}
BridgedFunction BridgedTestArguments::takeFunction() const {
return {arguments->takeFunction()};
}
//===----------------------------------------------------------------------===//
// SILFunction
//===----------------------------------------------------------------------===//
static_assert((int)BridgedFunction::EffectsKind::ReadNone == (int)swift::EffectsKind::ReadNone);
static_assert((int)BridgedFunction::EffectsKind::ReadOnly == (int)swift::EffectsKind::ReadOnly);
static_assert((int)BridgedFunction::EffectsKind::ReleaseNone == (int)swift::EffectsKind::ReleaseNone);
static_assert((int)BridgedFunction::EffectsKind::ReadWrite == (int)swift::EffectsKind::ReadWrite);
static_assert((int)BridgedFunction::EffectsKind::Unspecified == (int)swift::EffectsKind::Unspecified);
static_assert((int)BridgedFunction::EffectsKind::Custom == (int)swift::EffectsKind::Custom);
static_assert((int)BridgedFunction::PerformanceConstraints::None == (int)swift::PerformanceConstraints::None);
static_assert((int)BridgedFunction::PerformanceConstraints::NoAllocation == (int)swift::PerformanceConstraints::NoAllocation);
static_assert((int)BridgedFunction::PerformanceConstraints::NoLocks == (int)swift::PerformanceConstraints::NoLocks);
static_assert((int)BridgedFunction::PerformanceConstraints::NoRuntime == (int)swift::PerformanceConstraints::NoRuntime);
static_assert((int)BridgedFunction::PerformanceConstraints::NoExistentials == (int)swift::PerformanceConstraints::NoExistentials);
static_assert((int)BridgedFunction::PerformanceConstraints::NoObjCBridging == (int)swift::PerformanceConstraints::NoObjCBridging);
static_assert((int)BridgedFunction::PerformanceConstraints::ManualOwnership == (int)swift::PerformanceConstraints::ManualOwnership);
static_assert((int)BridgedFunction::InlineStrategy::InlineDefault == (int)swift::InlineDefault);
static_assert((int)BridgedFunction::InlineStrategy::NoInline == (int)swift::NoInline);
static_assert((int)BridgedFunction::InlineStrategy::HeuristicAlwaysInline == (int)swift::HeuristicAlwaysInline);
static_assert((int)BridgedFunction::InlineStrategy::AlwaysInline == (int)swift::AlwaysInline);
static_assert((int)BridgedFunction::ABILanguage::Swift == (int)swift::SILFunctionLanguage::Swift);
static_assert((int)BridgedFunction::ABILanguage::C == (int)swift::SILFunctionLanguage::C);
static_assert((int)BridgedFunction::ThunkKind::IsNotThunk == (int)swift::IsNotThunk);
static_assert((int)BridgedFunction::ThunkKind::IsThunk == (int)swift::IsThunk);
static_assert((int)BridgedFunction::ThunkKind::IsReabstractionThunk == (int)swift::IsReabstractionThunk);
static_assert((int)BridgedFunction::ThunkKind::IsSignatureOptimizedThunk == (int)swift::IsSignatureOptimizedThunk);
BridgedOwnedString BridgedFunction::getDebugDescription() const {
std::string str;
llvm::raw_string_ostream os(str);
getFunction()->print(os);
str.pop_back(); // Remove trailing newline.
return BridgedOwnedString(str);
}
BridgedSubstitutionMap BridgedFunction::getMethodSubstitutions(BridgedSubstitutionMap contextSubstitutions,
BridgedCanType selfType) const {
swift::SILFunction *f = getFunction();
swift::GenericSignature genericSig = f->getLoweredFunctionType()->getInvocationGenericSignature();
if (!genericSig || genericSig->areAllParamsConcrete())
return swift::SubstitutionMap();
SubstitutionMap contextSubs = contextSubstitutions.unbridged();
if (selfType.unbridged() &&
contextSubs.getGenericSignature().getGenericParams().size() + 1 == genericSig.getGenericParams().size()) {
// If this is a default witness methods (`selfType` != nil) it has generic self type. In this case
// the generic self parameter is at depth 0 and the actual generic parameters of the substitution map
// are at depth + 1, e.g:
// ```
// @convention(witness_method: P) <τ_0_0><τ_1_0 where τ_0_0 : GenClass<τ_1_0>.T>
// ^ ^
// self params of substitution map at depth + 1
// ```
return swift::SubstitutionMap::get(genericSig,
[&](SubstitutableType *type) -> Type {
GenericTypeParamType *genericParam = cast<GenericTypeParamType>(type);
// The self type is τ_0_0
if (genericParam->getDepth() == 0 && genericParam->getIndex() == 0)
return selfType.unbridged();
// Lookup the substitution map types at depth - 1.
auto *depthMinus1Param = GenericTypeParamType::getType(genericParam->getDepth() - 1,
genericParam->getIndex(),
genericParam->getASTContext());
return swift::QuerySubstitutionMap{contextSubs}(depthMinus1Param);
},
swift::LookUpConformanceInModule());
}
return swift::SubstitutionMap::get(genericSig,
swift::QuerySubstitutionMap{contextSubs},
swift::LookUpConformanceInModule());
}
//===----------------------------------------------------------------------===//
// SILBasicBlock
//===----------------------------------------------------------------------===//
BridgedOwnedString BridgedBasicBlock::getDebugDescription() const {
std::string str;
llvm::raw_string_ostream os(str);
unbridged()->print(os);
str.pop_back(); // Remove trailing newline.
return BridgedOwnedString(str);
}
//===----------------------------------------------------------------------===//
// SILValue
//===----------------------------------------------------------------------===//
BridgedOwnedString BridgedValue::getDebugDescription() const {
std::string str;
llvm::raw_string_ostream os(str);
getSILValue()->print(os);
str.pop_back(); // Remove trailing newline.
return BridgedOwnedString(str);
}
BridgedValue::Kind BridgedValue::getKind() const {
SILValue v = getSILValue();
if (isa<SingleValueInstruction>(v)) {
return BridgedValue::Kind::SingleValueInstruction;
} else if (isa<SILArgument>(v)) {
return BridgedValue::Kind::Argument;
} else if (isa<MultipleValueInstructionResult>(v)) {
return BridgedValue::Kind::MultipleValueInstructionResult;
} else if (isa<SILUndef>(v)) {
return BridgedValue::Kind::Undef;
}
llvm_unreachable("unknown SILValue");
}
ArrayRef<SILValue> BridgedValueArray::getValues(SmallVectorImpl<SILValue> &storage) {
for (unsigned idx = 0; idx < count; ++idx) {
storage.push_back(base[idx].value.getSILValue());
}
return storage;
}
bool BridgedValue::findPointerEscape() const {
return swift::findPointerEscape(getSILValue());
}
//===----------------------------------------------------------------------===//
// SILArgument
//===----------------------------------------------------------------------===//
static_assert((int)BridgedArgumentConvention::Indirect_In == (int)swift::SILArgumentConvention::Indirect_In);
static_assert((int)BridgedArgumentConvention::Indirect_In_Guaranteed == (int)swift::SILArgumentConvention::Indirect_In_Guaranteed);
static_assert((int)BridgedArgumentConvention::Indirect_Inout == (int)swift::SILArgumentConvention::Indirect_Inout);
static_assert((int)BridgedArgumentConvention::Indirect_InoutAliasable == (int)swift::SILArgumentConvention::Indirect_InoutAliasable);
static_assert((int)BridgedArgumentConvention::Indirect_Out == (int)swift::SILArgumentConvention::Indirect_Out);
static_assert((int)BridgedArgumentConvention::Direct_Owned == (int)swift::SILArgumentConvention::Direct_Owned);
static_assert((int)BridgedArgumentConvention::Direct_Unowned == (int)swift::SILArgumentConvention::Direct_Unowned);
static_assert((int)BridgedArgumentConvention::Direct_Guaranteed == (int)swift::SILArgumentConvention::Direct_Guaranteed);
static_assert((int)BridgedArgumentConvention::Pack_Owned == (int)swift::SILArgumentConvention::Pack_Owned);
static_assert((int)BridgedArgumentConvention::Pack_Inout == (int)swift::SILArgumentConvention::Pack_Inout);
static_assert((int)BridgedArgumentConvention::Pack_Guaranteed == (int)swift::SILArgumentConvention::Pack_Guaranteed);
static_assert((int)BridgedArgumentConvention::Pack_Out == (int)swift::SILArgumentConvention::Pack_Out);
//===----------------------------------------------------------------------===//
// Linkage
//===----------------------------------------------------------------------===//
static_assert((int)BridgedLinkage::Public == (int)swift::SILLinkage::Public);
static_assert((int)BridgedLinkage::PublicNonABI == (int)swift::SILLinkage::PublicNonABI);
static_assert((int)BridgedLinkage::Package == (int)swift::SILLinkage::Package);
static_assert((int)BridgedLinkage::PackageNonABI == (int)swift::SILLinkage::PackageNonABI);
static_assert((int)BridgedLinkage::Hidden == (int)swift::SILLinkage::Hidden);
static_assert((int)BridgedLinkage::Shared == (int)swift::SILLinkage::Shared);
static_assert((int)BridgedLinkage::Private == (int)swift::SILLinkage::Private);
static_assert((int)BridgedLinkage::PublicExternal == (int)swift::SILLinkage::PublicExternal);
static_assert((int)BridgedLinkage::PackageExternal == (int)swift::SILLinkage::PackageExternal);
static_assert((int)BridgedLinkage::HiddenExternal == (int)swift::SILLinkage::HiddenExternal);
//===----------------------------------------------------------------------===//
// Operand
//===----------------------------------------------------------------------===//
void BridgedOperand::changeOwnership(BridgedValue::Ownership from, BridgedValue::Ownership to) const {
swift::ForwardingOperand forwardingOp(op);
assert(forwardingOp);
forwardingOp.replaceOwnershipKind(BridgedValue::unbridge(from), BridgedValue::unbridge(to));
}
//===----------------------------------------------------------------------===//
// SILGlobalVariable
//===----------------------------------------------------------------------===//
BridgedOwnedString BridgedGlobalVar::getDebugDescription() const {
std::string str;
llvm::raw_string_ostream os(str);
getGlobal()->print(os);
str.pop_back(); // Remove trailing newline.
return BridgedOwnedString(str);
}
bool BridgedGlobalVar::canBeInitializedStatically() const {
SILGlobalVariable *global = getGlobal();
auto expansion = ResilienceExpansion::Maximal;
if (hasPublicVisibility(global->getLinkage()))
expansion = ResilienceExpansion::Minimal;
auto props = global->getModule().Types.getTypeProperties(
global->getLoweredType(),
TypeExpansionContext::noOpaqueTypeArchetypesSubstitution(expansion));
return props.isFixedABI();
}
bool BridgedGlobalVar::mustBeInitializedStatically() const {
SILGlobalVariable *global = getGlobal();
return global->mustBeInitializedStatically();
}
bool BridgedGlobalVar::isConstValue() const {
SILGlobalVariable *global = getGlobal();
if (const auto &decl = global->getDecl())
return decl->isConstValue();
return false;
}
//===----------------------------------------------------------------------===//
// SILDeclRef
//===----------------------------------------------------------------------===//
BridgedOwnedString BridgedDeclRef::getDebugDescription() const {
std::string str;
llvm::raw_string_ostream os(str);
unbridged().print(os);
return BridgedOwnedString(str);
}
//===----------------------------------------------------------------------===//
// SILVTable
//===----------------------------------------------------------------------===//
static_assert(sizeof(BridgedVTableEntry) >= sizeof(swift::SILVTableEntry),
"BridgedVTableEntry has wrong size");
static_assert((int)BridgedVTableEntry::Kind::Normal == (int)swift::SILVTableEntry::Normal);
static_assert((int)BridgedVTableEntry::Kind::Inherited == (int)swift::SILVTableEntry::Inherited);
static_assert((int)BridgedVTableEntry::Kind::Override == (int)swift::SILVTableEntry::Override);
BridgedOwnedString BridgedVTable::getDebugDescription() const {
std::string str;
llvm::raw_string_ostream os(str);
vTable->print(os);
str.pop_back(); // Remove trailing newline.
return BridgedOwnedString(str);
}
BridgedOwnedString BridgedVTableEntry::getDebugDescription() const {
std::string str;
llvm::raw_string_ostream os(str);
unbridged().print(os);
str.pop_back(); // Remove trailing newline.
return BridgedOwnedString(str);
}
//===----------------------------------------------------------------------===//
// SILVWitnessTable, SILDefaultWitnessTable
//===----------------------------------------------------------------------===//
static_assert(sizeof(BridgedWitnessTableEntry) >= sizeof(swift::SILWitnessTable::Entry),
"BridgedWitnessTableEntry has wrong size");
static_assert((int)BridgedWitnessTableEntry::Kind::invalid == (int)swift::SILWitnessTable::WitnessKind::Invalid);
static_assert((int)BridgedWitnessTableEntry::Kind::method == (int)swift::SILWitnessTable::WitnessKind::Method);
static_assert((int)BridgedWitnessTableEntry::Kind::associatedType == (int)swift::SILWitnessTable::WitnessKind::AssociatedType);
static_assert((int)BridgedWitnessTableEntry::Kind::associatedConformance == (int)swift::SILWitnessTable::WitnessKind::AssociatedConformance);
static_assert((int)BridgedWitnessTableEntry::Kind::baseProtocol == (int)swift::SILWitnessTable::WitnessKind::BaseProtocol);
BridgedOwnedString BridgedWitnessTableEntry::getDebugDescription() const {
std::string str;
llvm::raw_string_ostream os(str);
unbridged().print(os, /*verbose=*/ false, PrintOptions::printSIL());
str.pop_back(); // Remove trailing newline.
return BridgedOwnedString(str);
}
BridgedOwnedString BridgedWitnessTable::getDebugDescription() const {
std::string str;
llvm::raw_string_ostream os(str);
table->print(os);
str.pop_back(); // Remove trailing newline.
return BridgedOwnedString(str);
}
BridgedOwnedString BridgedDefaultWitnessTable::getDebugDescription() const {
std::string str;
llvm::raw_string_ostream os(str);
table->print(os);
str.pop_back(); // Remove trailing newline.
return BridgedOwnedString(str);
}
//===----------------------------------------------------------------------===//
// SILDebugLocation
//===----------------------------------------------------------------------===//
static_assert(sizeof(BridgedLocation) >= sizeof(swift::SILDebugLocation),
"BridgedLocation has wrong size");
BridgedOwnedString BridgedLocation::getDebugDescription() const {
std::string str;
llvm::raw_string_ostream os(str);
SILLocation loc = getLoc().getLocation();
loc.print(os);
#ifndef NDEBUG
if (const SILDebugScope *scope = getLoc().getScope()) {
if (DeclContext *dc = loc.getAsDeclContext()) {
os << ", scope=";
scope->print(dc->getASTContext().SourceMgr, os, /*indent*/ 2);
} else {
os << ", scope=?";
}
}
#endif
return BridgedOwnedString(str);
}
//===----------------------------------------------------------------------===//
// SILInstruction
//===----------------------------------------------------------------------===//
static_assert((int)BridgedMemoryBehavior::None == (int)swift::MemoryBehavior::None);
static_assert((int)BridgedMemoryBehavior::MayRead == (int)swift::MemoryBehavior::MayRead);
static_assert((int)BridgedMemoryBehavior::MayWrite == (int)swift::MemoryBehavior::MayWrite);
static_assert((int)BridgedMemoryBehavior::MayReadWrite == (int)swift::MemoryBehavior::MayReadWrite);
static_assert((int)BridgedMemoryBehavior::MayHaveSideEffects == (int)swift::MemoryBehavior::MayHaveSideEffects);
BridgedOwnedString BridgedInstruction::getDebugDescription() const {
std::string str;
llvm::raw_string_ostream os(str);
unbridged()->print(os);
str.pop_back(); // Remove trailing newline.
return BridgedOwnedString(str);
}
bool BridgedInstruction::mayAccessPointer() const {
return ::mayAccessPointer(unbridged());
}
bool BridgedInstruction::mayLoadWeakOrUnowned() const {
return ::mayLoadWeakOrUnowned(unbridged());
}
bool BridgedInstruction::maySynchronize() const {
return ::maySynchronize(unbridged());
}
bool BridgedInstruction::mayBeDeinitBarrierNotConsideringSideEffects() const {
return ::mayBeDeinitBarrierNotConsideringSideEffects(unbridged());
}
//===----------------------------------------------------------------------===//
// BridgedBuilder
//===----------------------------------------------------------------------===//
static llvm::SmallVector<std::pair<swift::EnumElementDecl *, swift::SILBasicBlock *>, 16>
convertCases(SILType enumTy, const void * _Nullable enumCases, SwiftInt numEnumCases) {
using BridgedCase = const std::pair<SwiftInt, BridgedBasicBlock>;
llvm::ArrayRef<BridgedCase> cases(static_cast<BridgedCase *>(enumCases),
(unsigned)numEnumCases);
llvm::SmallDenseMap<SwiftInt, swift::EnumElementDecl *> mappedElements;
swift::EnumDecl *enumDecl = enumTy.getEnumOrBoundGenericEnum();
for (auto elemWithIndex : llvm::enumerate(enumDecl->getAllElements())) {
mappedElements[elemWithIndex.index()] = elemWithIndex.value();
}
llvm::SmallVector<std::pair<swift::EnumElementDecl *, swift::SILBasicBlock *>, 16> convertedCases;
for (auto c : cases) {
assert(mappedElements.count(c.first) && "wrong enum element index");
convertedCases.push_back({mappedElements[c.first], c.second.unbridged()});
}
return convertedCases;
}
BridgedInstruction BridgedBuilder::createSwitchEnumInst(BridgedValue enumVal, OptionalBridgedBasicBlock defaultBlock,
const void * _Nullable enumCases, SwiftInt numEnumCases) const {
return {unbridged().createSwitchEnum(regularLoc(),
enumVal.getSILValue(),
defaultBlock.unbridged(),
convertCases(enumVal.getSILValue()->getType(), enumCases, numEnumCases))};
}
BridgedInstruction BridgedBuilder::createSwitchEnumAddrInst(BridgedValue enumAddr,
OptionalBridgedBasicBlock defaultBlock,
const void * _Nullable enumCases,
SwiftInt numEnumCases) const {
return {unbridged().createSwitchEnumAddr(regularLoc(),
enumAddr.getSILValue(),
defaultBlock.unbridged(),
convertCases(enumAddr.getSILValue()->getType(), enumCases, numEnumCases))};
}
//===----------------------------------------------------------------------===//
// BridgedCloner
//===----------------------------------------------------------------------===//
// Need to put the cloner Impl classes into namespace swift to forward reference it from SILBridging.h.
namespace swift {
class BridgedClonerImpl : public SILCloner<BridgedClonerImpl> {
friend class SILInstructionVisitor<BridgedClonerImpl>;
friend class SILCloner<BridgedClonerImpl>;
bool hasFixedLocation;
union {
SILDebugLocation fixedLocation;
ScopeCloner scopeCloner;
};
SILInstruction *result = nullptr;
public:
BridgedClonerImpl(SILGlobalVariable *gVar)
: SILCloner<BridgedClonerImpl>(gVar),
hasFixedLocation(true),
fixedLocation(ArtificialUnreachableLocation(), nullptr) {}
BridgedClonerImpl(SILInstruction *insertionPoint)
: SILCloner<BridgedClonerImpl>(*insertionPoint->getFunction()),
hasFixedLocation(true),
fixedLocation(insertionPoint->getDebugLocation()) {
Builder.setInsertionPoint(insertionPoint);
}
BridgedClonerImpl(SILFunction &emptyFunction)
: SILCloner<BridgedClonerImpl>(emptyFunction),
hasFixedLocation(false),
scopeCloner(ScopeCloner(emptyFunction)) {}
~BridgedClonerImpl() {
if (hasFixedLocation) {
fixedLocation.~SILDebugLocation();
} else {
scopeCloner.~ScopeCloner();
}
}
SILValue getClonedValue(SILValue v) {
return getMappedValue(v);
}
SILInstruction *cloneInst(SILInstruction *inst) {
result = nullptr;
visit(inst);
ASSERT(result && "instruction not cloned");
return result;
}
SILLocation remapLocation(SILLocation loc) {
if (hasFixedLocation)
return fixedLocation.getLocation();
return loc;
}
const SILDebugScope *remapScope(const SILDebugScope *DS) {
if (hasFixedLocation)
return fixedLocation.getScope();
return scopeCloner.getOrCreateClonedScope(DS);
}
void postProcess(SILInstruction *Orig, SILInstruction *Cloned) {
result = Cloned;
SILCloner<BridgedClonerImpl>::postProcess(Orig, Cloned);
}
};
class BridgedTypeSubstClonerImpl : public TypeSubstCloner<BridgedTypeSubstClonerImpl> {
SILInstruction *result = nullptr;
public:
BridgedTypeSubstClonerImpl(SILFunction &from, SILFunction &toEmptyFunction, SubstitutionMap subs)
: TypeSubstCloner<BridgedTypeSubstClonerImpl>(toEmptyFunction, from, subs) {}
SILValue getClonedValue(SILValue v) {
return getMappedValue(v);
}
SILInstruction *cloneInst(SILInstruction *inst) {
result = nullptr;
visit(inst);
ASSERT(result && "instruction not cloned");
return result;
}
void postProcess(SILInstruction *Orig, SILInstruction *Cloned) {
result = Cloned;
SILClonerWithScopes<BridgedTypeSubstClonerImpl>::postProcess(Orig, Cloned);
}
SILFunction *getOriginal() { return &Original; }
};
} // namespace swift
BridgedCloner::BridgedCloner(BridgedGlobalVar var, BridgedContext context)
: cloner(new BridgedClonerImpl(var.getGlobal())) {
context.context->notifyNewCloner();
}
BridgedCloner::BridgedCloner(BridgedInstruction inst,
BridgedContext context)
: cloner(new BridgedClonerImpl(inst.unbridged())) {
context.context->notifyNewCloner();
}
BridgedCloner::BridgedCloner(BridgedFunction emptyFunction, BridgedContext context)
: cloner(new BridgedClonerImpl(*emptyFunction.getFunction())) {
context.context->notifyNewCloner();
}
void BridgedCloner::destroy(BridgedContext context) {
delete cloner;
cloner = nullptr;
context.context->notifyClonerDestroyed();
}
BridgedFunction BridgedCloner::getCloned() const {
return { &cloner->getBuilder().getFunction() };
}
BridgedValue BridgedCloner::getClonedValue(BridgedValue v) {
return {cloner->getClonedValue(v.getSILValue())};
}
bool BridgedCloner::isValueCloned(BridgedValue v) const {
return cloner->isValueCloned(v.getSILValue());
}
void BridgedCloner::recordClonedInstruction(BridgedInstruction origInst, BridgedInstruction clonedInst) const {
cloner->recordClonedInstruction(origInst.unbridged(), clonedInst.unbridged());
}
void BridgedCloner::recordFoldedValue(BridgedValue orig, BridgedValue mapped) const {
cloner->recordFoldedValue(orig.getSILValue(), mapped.getSILValue());
}
BridgedInstruction BridgedCloner::clone(BridgedInstruction inst) const {
return {cloner->cloneInst(inst.unbridged())->asSILNode()};
}
void BridgedCloner::setInsertionBlockIfNotSet(BridgedBasicBlock block) const {
if (!cloner->getBuilder().hasValidInsertionPoint())
cloner->getBuilder().setInsertionPoint(block.unbridged());
}
BridgedBasicBlock BridgedCloner::getClonedBasicBlock(BridgedBasicBlock originalBasicBlock) const {
return { cloner->getOpBasicBlock(originalBasicBlock.unbridged()) };
}
void BridgedCloner::cloneFunctionBody(BridgedFunction originalFunction,
BridgedBasicBlock clonedEntryBlock,
BridgedValueArray clonedEntryBlockArgs) const {
llvm::SmallVector<swift::SILValue, 16> clonedEntryBlockArgsStorage;
auto clonedEntryBlockArgsArrayRef = clonedEntryBlockArgs.getValues(clonedEntryBlockArgsStorage);
cloner->cloneFunctionBody(originalFunction.getFunction(), clonedEntryBlock.unbridged(), clonedEntryBlockArgsArrayRef);
}
void BridgedCloner::cloneFunctionBody(BridgedFunction originalFunction) const {
cloner->cloneFunction(originalFunction.getFunction());
}
BridgedTypeSubstCloner::BridgedTypeSubstCloner(BridgedFunction fromFunction, BridgedFunction toFunction,
BridgedSubstitutionMap substitutions,
BridgedContext context)
: cloner(new BridgedTypeSubstClonerImpl(*fromFunction.getFunction(), *toFunction.getFunction(),
substitutions.unbridged())) {
context.context->notifyNewCloner();
}
void BridgedTypeSubstCloner::destroy(BridgedContext context) {
delete cloner;
cloner = nullptr;
context.context->notifyClonerDestroyed();
}
void BridgedTypeSubstCloner::cloneFunctionBody() const {
cloner->cloneFunction(cloner->getOriginal());
}
BridgedBasicBlock BridgedTypeSubstCloner::getClonedBasicBlock(BridgedBasicBlock originalBasicBlock) const {
return { cloner->getOpBasicBlock(originalBasicBlock.unbridged()) };
}
BridgedValue BridgedTypeSubstCloner::getClonedValue(BridgedValue v) {
return {cloner->getClonedValue(v.getSILValue())};
}
//===----------------------------------------------------------------------===//
// BridgedContext
//===----------------------------------------------------------------------===//
BridgedOwnedString BridgedContext::getModuleDescription() const {
std::string str;
llvm::raw_string_ostream os(str);
context->getModule()->print(os);
str.pop_back(); // Remove trailing newline.
return BridgedOwnedString(str);
}
OptionalBridgedFunction BridgedContext::lookUpNominalDeinitFunction(BridgedDeclObj nominal) const {
return {context->getModule()->lookUpMoveOnlyDeinitFunction(nominal.getAs<swift::NominalTypeDecl>())};
}
BridgedFunction BridgedContext::
createEmptyFunction(BridgedStringRef name,
const BridgedParameterInfo * _Nullable bridgedParams,
SwiftInt paramCount,
bool hasSelfParam,
BridgedFunction fromFunc) const {
llvm::SmallVector<SILParameterInfo> params;
for (unsigned idx = 0; idx < paramCount; ++idx) {
params.push_back(bridgedParams[idx].unbridged());
}
return {context->createEmptyFunction(name.unbridged(), params, hasSelfParam, fromFunc.getFunction())};
}
BridgedGlobalVar BridgedContext::createGlobalVariable(BridgedStringRef name, BridgedType type,
BridgedLinkage linkage,
bool isLet,
bool markedAsUsed) const {
auto *global = SILGlobalVariable::create(
*context->getModule(),
(swift::SILLinkage)linkage, IsNotSerialized,
name.unbridged(), type.unbridged());
if (isLet)
global->setLet(true);
global->setMarkedAsUsed(markedAsUsed);
return {global};
}
void BridgedContext::moveFunctionBody(BridgedFunction sourceFunc, BridgedFunction destFunc) const {
context->moveFunctionBody(sourceFunc.getFunction(), destFunc.getFunction());
}
//===----------------------------------------------------------------------===//
// SILContext
//===----------------------------------------------------------------------===//
SILContext::~SILContext() {}
void SILContext::verifyEverythingIsCleared() {
ASSERT(allocatedSlabs.empty() && "StackList is leaking slabs");
ASSERT(numBlockSetsAllocated == 0 && "Not all BasicBlockSets deallocated");
ASSERT(numNodeSetsAllocated == 0 && "Not all NodeSets deallocated");
ASSERT(numOperandSetsAllocated == 0 && "Not all OperandSets deallocated");
ASSERT(numClonersAllocated == 0 && "Not all cloners deallocated");
}
FixedSizeSlab *SILContext::allocSlab(FixedSizeSlab *afterSlab) {
FixedSizeSlab *slab = getModule()->allocSlab();
if (afterSlab) {
allocatedSlabs.insert(std::next(afterSlab->getIterator()), *slab);
} else {
allocatedSlabs.push_back(*slab);
}
return slab;
}
FixedSizeSlab *SILContext::freeSlab(FixedSizeSlab *slab) {
FixedSizeSlab *prev = nullptr;
assert(!allocatedSlabs.empty());
if (&allocatedSlabs.front() != slab)
prev = &*std::prev(slab->getIterator());
allocatedSlabs.remove(*slab);
getModule()->freeSlab(slab);
return prev;
}
BasicBlockSet *SILContext::allocBlockSet() {
ASSERT(numBlockSetsAllocated < BlockSetCapacity &&
"too many BasicBlockSets allocated");
auto *storage = (BasicBlockSet *)blockSetStorage + numBlockSetsAllocated;
BasicBlockSet *set = new (storage) BasicBlockSet(function);
aliveBlockSets[numBlockSetsAllocated] = true;
++numBlockSetsAllocated;
return set;
}
void SILContext::freeBlockSet(BasicBlockSet *set) {
int idx = set - (BasicBlockSet *)blockSetStorage;
assert(idx >= 0 && idx < numBlockSetsAllocated);
assert(aliveBlockSets[idx] && "double free of BasicBlockSet");
aliveBlockSets[idx] = false;
while (numBlockSetsAllocated > 0 && !aliveBlockSets[numBlockSetsAllocated - 1]) {
auto *set = (BasicBlockSet *)blockSetStorage + numBlockSetsAllocated - 1;
set->~BasicBlockSet();
--numBlockSetsAllocated;
}
}
NodeSet *SILContext::allocNodeSet() {
ASSERT(numNodeSetsAllocated < NodeSetCapacity &&
"too many NodeSets allocated");
auto *storage = (NodeSet *)nodeSetStorage + numNodeSetsAllocated;
NodeSet *set = new (storage) NodeSet(function);
aliveNodeSets[numNodeSetsAllocated] = true;
++numNodeSetsAllocated;
return set;
}
void SILContext::freeNodeSet(NodeSet *set) {
int idx = set - (NodeSet *)nodeSetStorage;
assert(idx >= 0 && idx < numNodeSetsAllocated);
assert(aliveNodeSets[idx] && "double free of NodeSet");
aliveNodeSets[idx] = false;
while (numNodeSetsAllocated > 0 && !aliveNodeSets[numNodeSetsAllocated - 1]) {
auto *set = (NodeSet *)nodeSetStorage + numNodeSetsAllocated - 1;
set->~NodeSet();
--numNodeSetsAllocated;
}
}
OperandSet *SILContext::allocOperandSet() {
ASSERT(numOperandSetsAllocated < OperandSetCapacity &&
"too many OperandSets allocated");
auto *storage = (OperandSet *)operandSetStorage + numOperandSetsAllocated;
OperandSet *set = new (storage) OperandSet(function);
aliveOperandSets[numOperandSetsAllocated] = true;
++numOperandSetsAllocated;
return set;
}
void SILContext::freeOperandSet(OperandSet *set) {
int idx = set - (OperandSet *)operandSetStorage;
assert(idx >= 0 && idx < numOperandSetsAllocated);
assert(aliveOperandSets[idx] && "double free of OperandSet");
aliveOperandSets[idx] = false;
while (numOperandSetsAllocated > 0 && !aliveOperandSets[numOperandSetsAllocated - 1]) {
auto *set = (OperandSet *)operandSetStorage + numOperandSetsAllocated - 1;
set->~OperandSet();
--numOperandSetsAllocated;
}
}
//===----------------------------------------------------------------------===//
// BridgedVerifier
//===----------------------------------------------------------------------===//
static BridgedVerifier::VerifyFunctionFn verifyFunctionFunction = nullptr;
void BridgedVerifier::registerVerifier(VerifyFunctionFn verifyFunctionFn) {
verifyFunctionFunction = verifyFunctionFn;
}
void BridgedVerifier::runSwiftFunctionVerification(SILFunction * _Nonnull f, SILContext * _Nonnull context) {
if (!verifyFunctionFunction)
return;
verifyFunctionFunction({context}, {f});
}
void BridgedVerifier::verifierError(BridgedStringRef message,
BridgedInstruction atInstruction) {
verificationFailure(message.unbridged(), atInstruction.unbridged(),
/*extraContext=*/nullptr);
}
void BridgedVerifier::verifierError(BridgedStringRef message,
BridgedArgument atArgument) {
verificationFailure(message.unbridged(), atArgument.getArgument(),
/*extraContext=*/nullptr);
}
void BridgedVerifier::verifierError(BridgedStringRef message,
BridgedValue atValue) {
verificationFailure(message.unbridged(), SILValue(atValue.getSILValue()),
/*extraContext=*/nullptr);
}