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[SR-7328] Compiler crash when inner func uses outer func argument as default argument #49876

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kateinoigakukun opened this issue Apr 2, 2018 · 1 comment
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[SR-7328] Compiler crash when inner func uses outer func argument as default argument #49876

kateinoigakukun opened this issue Apr 2, 2018 · 1 comment
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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

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@kateinoigakukun
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Previous ID SR-7328
Radar rdar://problem/39142814
Original Reporter @kateinoigakukun
Type Bug
Status Resolved
Resolution Duplicate
Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug, CompilerCrash
Assignee None
Priority Medium

md5: 63b654d457ea71b26aa9c57b6706a706

duplicates:

  • SR-2189 Nested function with local default value crashes

Issue Description:

Minimum code is here.

func bar(foo: Int) {
    func inner(arg: Int = foo) {}
    inner()
}
bar(foo: 3)

Crash log is here

Global is external, but doesn't have external or weak linkage!
i8* ()* @_T010inner_func3barySi3foo_tFACL_Sivau
<unknown>:0: error: fatal error encountered during compilation; please file a bug report with your project and the crash log
<unknown>:0: note: Broken module found, compilation aborted!
0  swift                    0x000000010852bffa PrintStackTraceSignalHandler(void*) + 42
1  swift                    0x000000010852b3b6 SignalHandler(int) + 966
2  libsystem_platform.dylib 0x00007fff68d2bf5a _sigtramp + 26
3  libsystem_platform.dylib 000000000000000000 _sigtramp + 2536325312
4  libsystem_c.dylib        0x00007fff68b56312 abort + 127
5  swift                    0x0000000104b828e7 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*)::$_0::__invoke(void*, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, bool) + 519
6  swift                    0x00000001084e3658 llvm::report_fatal_error(llvm::Twine const&, bool) + 280
7  swift                    0x00000001084e3539 llvm::report_fatal_error(char const*, bool) + 41
8  swift                    0x00000001084abc5c (anonymous namespace)::VerifierLegacyPass::doFinalization(llvm::Module&) + 204
9  swift                    0x0000000108453015 llvm::FPPassManager::doFinalization(llvm::Module&) + 53
10 swift                    0x0000000108458167 llvm::legacy::FunctionPassManagerImpl::doFinalization(llvm::Module&) + 71
11 swift                    0x0000000104d2ba35 swift::performLLVM(swift::IRGenOptions&, swift::DiagnosticEngine*, llvm::sys::SmartMutex<false>*, llvm::GlobalVariable*, llvm::Module*, llvm::TargetMachine*, swift::version::Version const&, llvm::StringRef, swift::UnifiedStatsReporter*) + 5125
12 swift                    0x0000000104d30a62 performIRGeneration(swift::IRGenOptions&, swift::ModuleDecl*, std::__1::unique_ptr<swift::SILModule, std::__1::default_delete<swift::SILModule> >, llvm::StringRef, llvm::LLVMContext&, swift::SourceFile*, llvm::GlobalVariable**, unsigned int) + 2738
13 swift                    0x0000000104d2da52 swift::performIRGeneration(swift::IRGenOptions&, swift::ModuleDecl*, std::__1::unique_ptr<swift::SILModule, std::__1::default_delete<swift::SILModule> >, llvm::StringRef, llvm::LLVMContext&, llvm::GlobalVariable**) + 1746
14 swift                    0x0000000104b8d36b performCompile(swift::CompilerInstance&, swift::CompilerInvocation&, llvm::ArrayRef<char const*>, int&, swift::FrontendObserver*, swift::UnifiedStatsReporter*) + 43643
15 swift                    0x0000000104b80e64 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 7908
16 swift                    0x0000000104b358b5 main + 18917
17 libdyld.dylib            0x00007fff68aaa115 start + 1
@belkadan
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belkadan commented Apr 3, 2018

With assertions:

Assertion failed: (!var->getDeclContext()->isLocalContext() && "not a global variable!"), function isGlobalLazilyInitialized, file /Volumes/Data/swift-public/swift/lib/SILGen/SILGenGlobalVariable.cpp, line 64.

1.  While emitting SIL for 'bar(foo:)' at <stdin>:1:1
2.  While silgen emitFunction SIL function "@$S4main3bar3fooySi_tF".
 for 'bar(foo:)' at <stdin>:1:1
3.  While silgen emitDefaultArgGenerator  SIL function "@$S4main3bar3fooySi_tF5innerL_3argySi_tFfA_".

@swift-ci create

@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
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@belkadan @kateinoigakukun @AnthonyLatsis