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[SR-6874] Swift 4.1 compiler crash when building release configuration #49423

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florianreinhart opened this issue Jan 30, 2018 · 4 comments
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself crash Bug: A crash, i.e., an abnormal termination of software regression swift 4.1

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@florianreinhart
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Previous ID SR-6874
Radar rdar://problem/37072260
Original Reporter @florianreinhart
Type Bug
Status Resolved
Resolution Done

Attachment: Download

Environment

macOS 10.13.3

Swift 4.1 bundled with Xcode 9.3 beta (9Q98q)

Swift 4.1 Snapshot 2018-01-29 (a)

Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug, 4.1Regression, CompilerCrash
Assignee @belkadan
Priority Medium

md5: 11e10af5654af37ccc937bf1175df494

cloned to:

  • SR-6952 Investigate serialization of cross-references to private types

Issue Description:

While testing a SPM project with Swift 4.1 I ran into a regression. The compiler crashes when building the release configuration.

<unknown>:0: error: fatal error encountered while reading from module 'CSV'; please file a bug report with your project and the crash log

*** DESERIALIZATION FAILURE (please include this section in any bug report) ***
couldn't decode type
Cross-reference to module 'Foundation'
... CharacterSet
... _storage

0  swift                    0x00000001045f0168 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 40
1  swift                    0x00000001045f0876 SignalHandler(int) + 694
2  libsystem_platform.dylib 0x00007fff74d6cf5a _sigtramp + 26
3  libsystem_platform.dylib 000000000000000000 _sigtramp + 2334732480
4  libsystem_c.dylib        0x00007fff74b97312 abort + 127
5  swift                    0x0000000101f26012 swift::ModuleFile::fatal(llvm::Error) + 706
6  swift                    0x0000000101f26566 swift::ModuleFile::getDecl(llvm::PointerEmbeddedInt<unsigned int, 31>, llvm::Optional<swift::DeclContext*>) + 198
7  swift                    0x0000000101f4cbaf swift::SILDeserializer::readSILInstruction(swift::SILFunction*, swift::SILBasicBlock*, swift::SILBuilder&, unsigned int, llvm::SmallVectorImpl<unsigned long long>&) + 3407
8  swift                    0x0000000101f4a93b swift::SILDeserializer::readSILFunction(llvm::PointerEmbeddedInt<unsigned int, 31>, swift::SILFunction*, llvm::StringRef, bool, bool) + 5195
9  swift                    0x0000000101f5b1e7 swift::SILDeserializer::lookupSILFunction(swift::SILFunction*) + 439
10 swift                    0x0000000101fd4c0b swift::SerializedSILLoader::lookupSILFunction(swift::SILFunction*) + 75
11 swift                    0x0000000101c68f29 swift::SILLinkerVisitor::processFunction(swift::SILFunction*) + 121
12 swift                    0x0000000101ce37a5 swift::SILModule::linkFunction(swift::SILFunction*, swift::SILOptions::LinkingMode) + 117
13 swift                    0x00000001019e1d04 runOnFunctionRecursively(swift::SILFunction*, swift::FullApplySite, swift::SILOptions::LinkingMode, llvm::DenseSet<swift::SILFunction*, llvm::DenseMapInfo<swift::SILFunction*> >&, llvm::ImmutableSet<swift::SILFunction*, llvm::ImutContainerInfo<swift::SILFunction*> >::Factory&, llvm::ImmutableSet<swift::SILFunction*, llvm::ImutContainerInfo<swift::SILFunction*> >, swift::ClassHierarchyAnalysis*) + 3780
14 swift                    0x00000001019e0c88 (anonymous namespace)::MandatoryInlining::run() + 408
15 swift                    0x000000010195a1ab swift::SILPassManager::runModulePass(swift::SILModuleTransform*) + 1355
16 swift                    0x000000010195ad21 swift::SILPassManager::runOneIteration() + 1025
17 swift                    0x000000010120527b swift::SILPassManager::executePassPipelinePlan(swift::SILPassPipelinePlan const&) + 187
18 swift                    0x000000010196357c swift::runSILDiagnosticPasses(swift::SILModule&) + 172
19 swift                    0x00000001010abbbc performCompile(swift::CompilerInstance&, swift::CompilerInvocation&, llvm::ArrayRef<char const*>, int&, swift::FrontendObserver*, swift::UnifiedStatsReporter*) + 10684
20 swift                    0x00000001010a8220 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 3376
21 swift                    0x0000000101067ac3 main + 3075
22 libdyld.dylib            0x00007fff74aeb115 start + 1

The attached project reproduces the crash.

I am able to reproduce the crash with Swift 4.1 included with Xcode 9.3 beta 1 and also Swift 4.1 Snapshot 2018-01-29 (a).

@belkadan
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@swift-ci create

@belkadan
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belkadan commented Feb 2, 2018

This uncovered a nasty hole in our model today. An immediate fix is at #14352

@belkadan
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belkadan commented Feb 8, 2018

4.1: #14473
5.0: #14474

@florianreinhart
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Thanks for the quick fix @belkadan. I can confirm that the latest Swift 4.1 Snapshot 2018-02-08 (a) fixes the issue.

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
@AnthonyLatsis AnthonyLatsis added the crash Bug: A crash, i.e., an abnormal termination of software label Dec 12, 2022
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Labels
bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself crash Bug: A crash, i.e., an abnormal termination of software regression swift 4.1
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