[SR-11433] Compiler Crash: Global is external, but doesn't have external or weak linkage!


Previous ID	SR-11433
Radar	rdar://problem/55187192
Original Reporter	ddddxxx (JIRA User)
Type	Bug

Attachment: Download

Environment

Xcode 11.0 beta 6 (11M392r)

Additional Detail from JIRA

| | | |------------------|-----------------| |Votes | 0 | |Component/s | Compiler | |Labels | Bug, CompilerCrash, PropertyWrappers | |Assignee | None | |Priority | Medium | md5: a334864b953bb52363b68b1d56f8f37e

Issue Description:

Attached sample project produces this compiler crash:

Global is external, but doesn't have external or weak linkage!
i64* @"$s5Crash1AC2_x33_420416B91640CD683786DD1B87F08660LL8CombineX9PublishedVyAA1EOGvpWvd"
<unknown>:0: error: fatal error encountered during compilation; please file a bug report with your project and the crash log
<unknown>:0: note: Broken module found, compilation aborted!
Stack dump:
0  swift                    0x0000000107a17013 PrintStackTraceSignalHandler(void*) + 51
1  swift                    0x0000000107a167e6 SignalHandler(int) + 358
2  libsystem_platform.dylib 0x00007fff660b3b1d _sigtramp + 29
3  libsystem_platform.dylib 000000000000000000 _sigtramp + 2582955264
4  libsystem_c.dylib        0x00007fff65f89a08 abort + 120
5  swift                    0x00000001036654f0 std::__1::unique_ptr<swift::DiagnosticConsumer, std::__1::default_delete<swift::DiagnosticConsumer> > llvm::function_ref<std::__1::unique_ptr<swift::DiagnosticConsumer, std::__1::default_delete<swift::DiagnosticConsumer> > (swift::InputFile const&)>::callback_fn<createSerializedDiagnosticConsumerIfNeeded(swift::FrontendInputsAndOutputs const&)::$_15>(long, swift::InputFile const&) + 0
6  swift                    0x0000000107990236 llvm::report_fatal_error(llvm::Twine const&, bool) + 278
7  swift                    0x000000010799011b llvm::report_fatal_error(char const*, bool) + 43
8  swift                    0x00000001079503fc (anonymous namespace)::VerifierLegacyPass::doFinalization(llvm::Module&) + 204
9  swift                    0x00000001078f1983 llvm::FPPassManager::doFinalization(llvm::Module&) + 51
10 swift                    0x00000001078f9fd2 llvm::legacy::FunctionPassManagerImpl::doFinalization(llvm::Module&) + 82
11 swift                    0x000000010387d2b5 swift::performLLVM(swift::IRGenOptions&, swift::DiagnosticEngine*, llvm::sys::SmartMutex<false>*, llvm::GlobalVariable*, llvm::Module*, llvm::TargetMachine*, swift::version::Version const&, llvm::StringRef, swift::UnifiedStatsReporter*) + 4677
12 swift                    0x000000010366efa3 performCompile(swift::CompilerInstance&, swift::CompilerInvocation&, llvm::ArrayRef<char const*>, int&, swift::FrontendObserver*, swift::UnifiedStatsReporter*) + 38307
13 swift                    0x00000001036621f4 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 6820
14 swift                    0x00000001035ef763 main + 1219
15 libdyld.dylib            0x00007fff65eb22a5 start + 1
16 libdyld.dylib            0x0000000000000040 start + 2585058716
error: Abort trap: 6 (in target 'Crash' from project 'Crash')

swiftlang / swift

[SR-11433] Compiler Crash: Global is external, but doesn't have external or weak linkage! #53834