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[SR-12306] 5.2 compiler segfault using Foundation in a script #54736

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swift-ci opened this issue Mar 2, 2020 · 2 comments
Closed

[SR-12306] 5.2 compiler segfault using Foundation in a script #54736

swift-ci opened this issue Mar 2, 2020 · 2 comments
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 SILGen Area → compiler: The SIL generation stage

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@swift-ci
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swift-ci commented Mar 2, 2020

Previous ID SR-12306
Radar rdar://problem/59976668
Original Reporter samrayner (JIRA User)
Type Bug
Status Resolved
Resolution Done

Attachment: Download

Environment

  • Apple Swift version 5.2 (swiftlang-1103.0.22 clang-1103.0.22)

  • macOS Catalina 10.15.3

  • Xcode 11.4 (beta 2)

Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug, CompilerCrash, SILGen
Assignee None
Priority Medium

md5: 59aad6b7028ea15dce1d39d0fb448d94

Issue Description:

Reproduced on two Macs with Xcode 11.4 beta 2 or the 5.2 snapshot toolchain.

The compiler will segmentation fault running the following:

> echo "import Foundation; print(Date())" | swift -

The same crash occurs when running a file:

test.swift:

import Foundation
print(Date())
> swift test.swift

This crash does not occur with Swift 5.1 (Xcode 11.3.1) or when running the 5.2 REPL:

  1> import Foundation
  2> print(Date())
2020-03-02 09:59:29 +0000

Joe Groff has been unable to reproduce:

https://twitter.com/jckarter/status/1230212464794488832

Filed in Feedback Assistant as FB7598190.

Stacktrace

Stack dump:
0.  Program arguments: /Users/samrayner/Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -frontend -interpret - -enable-objc-interop -stack-check -sdk /Users/samrayner/Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk -color-diagnostics -module-name main 
1.  Apple Swift version 5.2 (swiftlang-1103.0.22 clang-1103.0.22)
2.  While running user code "<stdin>"
0  swift                    0x00000001079729b3 PrintStackTraceSignalHandler(void*) + 51
1  swift                    0x0000000107972170 SignalHandler(int) + 352
2  libsystem_platform.dylib 0x00007fff6f5d942d _sigtramp + 29
3  libsystem_platform.dylib 0x0000000000000030 _sigtramp + 2426563616
4  swift                    0x000000010327583c llvm::MCJIT::runFunction(llvm::Function*, llvm::ArrayRef<llvm::GenericValue>) + 460
5  swift                    0x000000010327cc2a llvm::ExecutionEngine::runFunctionAsMain(llvm::Function*, std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > const&, char const* const*) + 1946
6  swift                    0x00000001032502c2 performCompileStepsPostSILGen(swift::CompilerInstance&, swift::CompilerInvocation&, std::__1::unique_ptr<swift::SILModule, std::__1::default_delete<swift::SILModule> >, bool, llvm::PointerUnion<swift::ModuleDecl*, swift::SourceFile*>, swift::PrimarySpecificPaths const&, bool, int&, swift::FrontendObserver*, swift::UnifiedStatsReporter*) + 14338
7  swift                    0x00000001032447f5 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 62917
8  swift                    0x00000001031b5283 main + 1299
9  libdyld.dylib            0x00007fff6f3e07fd start + 1
[1]    82451 done                echo "import Foundation;print(Date())" | 
       82452 segmentation fault  swift -
@hborla
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hborla commented Mar 3, 2020

@swift-ci create

@swift-ci
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Comment by Sam Rayner (JIRA)

This is resolved as it was discovered by Apple to be caused by SwiftGen.

SwiftGen issue filed: SwiftGen/SwiftGen#686

Thank you to the rep(s) who assisted me on Feedback Assistant!

@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
This issue was closed.
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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 SILGen Area → compiler: The SIL generation stage
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