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89 lines
3.2 KiB
C++
89 lines
3.2 KiB
C++
//===--- PartitionUtils.cpp -----------------------------------------------===//
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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 - 2023 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 https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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#include "swift/SILOptimizer/Utils/PartitionUtils.h"
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#include "swift/AST/Expr.h"
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#include "swift/SIL/ApplySite.h"
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#include "llvm/Support/CommandLine.h"
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using namespace swift;
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//===----------------------------------------------------------------------===//
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// MARK: Logging
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//===----------------------------------------------------------------------===//
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#ifndef NDEBUG
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bool swift::PartitionPrimitives::REGIONBASEDISOLATION_ENABLE_VERBOSE_LOGGING;
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static llvm::cl::opt<bool, true> // The parser
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RegionBasedIsolationVerboseLog(
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"sil-regionbasedisolation-verbose-log",
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llvm::cl::desc("Enable verbose logging for SIL region based isolation "
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"diagnostics"),
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llvm::cl::Hidden,
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llvm::cl::location(swift::PartitionPrimitives::
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REGIONBASEDISOLATION_ENABLE_VERBOSE_LOGGING));
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#endif
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//===----------------------------------------------------------------------===//
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// MARK: IsolationRegionInfo
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//===----------------------------------------------------------------------===//
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SILIsolationInfo SILIsolationInfo::get(SILInstruction *inst) {
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if (ApplyExpr *apply = inst->getLoc().getAsASTNode<ApplyExpr>())
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if (auto crossing = apply->getIsolationCrossing())
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return SILIsolationInfo::getActorIsolated(crossing->getCalleeIsolation());
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if (auto fas = FullApplySite::isa(inst)) {
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if (auto crossing = fas.getIsolationCrossing())
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return SILIsolationInfo::getActorIsolated(crossing->getCalleeIsolation());
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}
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if (auto *pai = dyn_cast<PartialApplyInst>(inst)) {
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if (auto *ace = pai->getLoc().getAsASTNode<AbstractClosureExpr>()) {
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auto actorIsolation = ace->getActorIsolation();
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if (actorIsolation.isActorIsolated()) {
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return SILIsolationInfo::getActorIsolated(actorIsolation);
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}
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}
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}
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// We assume that any instruction that does not correspond to an ApplyExpr
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// cannot cross an isolation domain.
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return SILIsolationInfo();
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}
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SILIsolationInfo SILIsolationInfo::get(SILFunctionArgument *arg) {
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if (auto *self = arg->getFunction()->maybeGetSelfArgument()) {
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if (auto *nomDecl = self->getType().getNominalOrBoundGenericNominal()) {
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return SILIsolationInfo::getActorIsolated(nomDecl);
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}
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}
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if (auto *decl = arg->getDecl()) {
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auto isolation = swift::getActorIsolation(const_cast<ValueDecl *>(decl));
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if (!bool(isolation)) {
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if (auto *dc = decl->getDeclContext()) {
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isolation = swift::getActorIsolationOfContext(dc);
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}
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}
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if (isolation.isActorIsolated()) {
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return SILIsolationInfo::getActorIsolated(isolation);
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}
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}
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return SILIsolationInfo::getTaskIsolated(arg);
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}
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