mirror of
https://github.com/apple/swift.git
synced 2025-12-21 12:14:44 +01:00
6c922af8aa
Otherwise, sometimes when the object checker emits a diagnostic and cleans up the IR, some of the cleaned up copies are copies that should have been handled by the address checker. The end result is that the address checker does not emit diagnostics for that IR. I found this problem was exascerbated when writing code for escaping closures. This commit also cleans up the passes in preparation for at a future time moving some of the transformations into the utils folder.
138 lines
5.1 KiB
C++
138 lines
5.1 KiB
C++
//===--- MoveOnlyObjectCheckerTester.cpp ----------------------------------===//
|
|
//
|
|
// This source file is part of the Swift.org open source project
|
|
//
|
|
// Copyright (c) 2014 - 2022 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#define DEBUG_TYPE "sil-move-only-checker"
|
|
|
|
#include "swift/AST/DiagnosticsSIL.h"
|
|
#include "swift/AST/TypeCheckRequests.h"
|
|
#include "swift/Basic/Defer.h"
|
|
#include "swift/Basic/FrozenMultiMap.h"
|
|
#include "swift/Basic/STLExtras.h"
|
|
#include "swift/SIL/BasicBlockBits.h"
|
|
#include "swift/SIL/BasicBlockUtils.h"
|
|
#include "swift/SIL/DebugUtils.h"
|
|
#include "swift/SIL/FieldSensitivePrunedLiveness.h"
|
|
#include "swift/SIL/InstructionUtils.h"
|
|
#include "swift/SIL/NodeBits.h"
|
|
#include "swift/SIL/OwnershipUtils.h"
|
|
#include "swift/SIL/PostOrder.h"
|
|
#include "swift/SIL/PrunedLiveness.h"
|
|
#include "swift/SIL/SILArgument.h"
|
|
#include "swift/SIL/SILBuilder.h"
|
|
#include "swift/SIL/SILFunction.h"
|
|
#include "swift/SIL/SILInstruction.h"
|
|
#include "swift/SIL/SILLocation.h"
|
|
#include "swift/SIL/SILUndef.h"
|
|
#include "swift/SIL/SILValue.h"
|
|
#include "swift/SIL/StackList.h"
|
|
#include "swift/SILOptimizer/Analysis/ClosureScope.h"
|
|
#include "swift/SILOptimizer/Analysis/DeadEndBlocksAnalysis.h"
|
|
#include "swift/SILOptimizer/Analysis/DominanceAnalysis.h"
|
|
#include "swift/SILOptimizer/Analysis/NonLocalAccessBlockAnalysis.h"
|
|
#include "swift/SILOptimizer/Analysis/PostOrderAnalysis.h"
|
|
#include "swift/SILOptimizer/PassManager/Transforms.h"
|
|
#include "swift/SILOptimizer/Utils/CFGOptUtils.h"
|
|
#include "swift/SILOptimizer/Utils/CanonicalizeOSSALifetime.h"
|
|
#include "swift/SILOptimizer/Utils/InstructionDeleter.h"
|
|
#include "swift/SILOptimizer/Utils/SILSSAUpdater.h"
|
|
#include "clang/AST/DeclTemplate.h"
|
|
#include "llvm/ADT/ArrayRef.h"
|
|
#include "llvm/ADT/IntervalMap.h"
|
|
#include "llvm/ADT/PointerIntPair.h"
|
|
#include "llvm/ADT/PointerUnion.h"
|
|
#include "llvm/ADT/STLExtras.h"
|
|
#include "llvm/ADT/SmallBitVector.h"
|
|
#include "llvm/ADT/SmallVector.h"
|
|
#include "llvm/Support/Allocator.h"
|
|
#include "llvm/Support/Debug.h"
|
|
#include "llvm/Support/ErrorHandling.h"
|
|
#include "llvm/Support/RecyclingAllocator.h"
|
|
|
|
#include "MoveOnlyBorrowToDestructureUtils.h"
|
|
#include "MoveOnlyDiagnostics.h"
|
|
#include "MoveOnlyObjectCheckerUtils.h"
|
|
#include "MoveOnlyUtils.h"
|
|
|
|
using namespace swift;
|
|
using namespace swift::siloptimizer;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// MARK: Top Level Entrypoint
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
namespace {
|
|
|
|
class MoveOnlyObjectCheckerTesterPass : public SILFunctionTransform {
|
|
void run() override {
|
|
auto *fn = getFunction();
|
|
|
|
// Only run this pass if the move only language feature is enabled.
|
|
if (!fn->getASTContext().LangOpts.Features.contains(Feature::MoveOnly))
|
|
return;
|
|
|
|
// Don't rerun diagnostics on deserialized functions.
|
|
if (getFunction()->wasDeserializedCanonical())
|
|
return;
|
|
|
|
assert(fn->getModule().getStage() == SILStage::Raw &&
|
|
"Should only run on Raw SIL");
|
|
|
|
LLVM_DEBUG(llvm::dbgs() << "===> MoveOnly Object Checker. Visiting: "
|
|
<< fn->getName() << '\n');
|
|
|
|
auto *dominanceAnalysis = getAnalysis<DominanceAnalysis>();
|
|
DominanceInfo *domTree = dominanceAnalysis->get(fn);
|
|
auto *poa = getAnalysis<PostOrderAnalysis>();
|
|
|
|
DiagnosticEmitter diagnosticEmitter;
|
|
borrowtodestructure::IntervalMapAllocator allocator;
|
|
|
|
unsigned diagCount = diagnosticEmitter.getDiagnosticCount();
|
|
SmallSetVector<MarkMustCheckInst *, 32> moveIntroducersToProcess;
|
|
bool madeChange = searchForCandidateObjectMarkMustChecks(
|
|
fn, moveIntroducersToProcess, diagnosticEmitter);
|
|
|
|
LLVM_DEBUG(llvm::dbgs()
|
|
<< "Emitting diagnostic when checking for mark must check inst: "
|
|
<< (diagCount != diagnosticEmitter.getDiagnosticCount() ? "yes"
|
|
: "no")
|
|
<< '\n');
|
|
|
|
if (moveIntroducersToProcess.empty()) {
|
|
LLVM_DEBUG(llvm::dbgs()
|
|
<< "No move introducers found?! Returning early?!\n");
|
|
} else {
|
|
diagCount = diagnosticEmitter.getDiagnosticCount();
|
|
MoveOnlyObjectChecker checker{diagnosticEmitter, domTree, poa, allocator};
|
|
madeChange |= checker.check(moveIntroducersToProcess);
|
|
}
|
|
|
|
if (diagCount != diagnosticEmitter.getDiagnosticCount()) {
|
|
emitCheckerMissedCopyOfNonCopyableTypeErrors(getFunction(),
|
|
diagnosticEmitter);
|
|
}
|
|
|
|
madeChange |=
|
|
cleanupNonCopyableCopiesAfterEmittingDiagnostic(getFunction());
|
|
|
|
if (madeChange) {
|
|
invalidateAnalysis(SILAnalysis::InvalidationKind::Instructions);
|
|
}
|
|
}
|
|
};
|
|
|
|
} // anonymous namespace
|
|
|
|
SILTransform *swift::createMoveOnlyObjectChecker() {
|
|
return new MoveOnlyObjectCheckerTesterPass();
|
|
}
|