[SR-12136] Using LAError causes swift 5.2 compiler to SEGFAULT

[swift-ci]

Previous ID	SR-12136
Radar	rdar://58552618
Original Reporter	torokzsolt (JIRA User)
Type	Bug

Additional Detail from JIRA

Votes	0
Component/s
Labels	Bug
Assignee	@slavapestov
Priority	Medium

md5: 78fb7cc02a6f19366310b51b101a17ff

is duplicated by:

• SR-12214 Swift 5.2 segmentation fault 11 with LocalAuthentication

Issue Description:

After updating to Xcode 11.4 and trying to build my application using swift 5.2 I started to get `Segmentation fault: 11` errors. As I investigated a bit more, I was able to reproduce the issue by using the following swift code:

import LocalAuthentication
print(LAError.biometryLockout)

Using 5.1.3 version of compiler it works just fine, but using 5.2 I get the following output:

Stack dump:
0.  Program arguments: /Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -frontend -interpret test.swift -enable-objc-interop -stack-check -sdk /Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk -color-diagnostics -module-name test 
1.  Apple Swift version 5.2 (swiftlang-1103.0.22 clang-1103.0.22)
2.  While emitting SIL for getter for biometryLockout (in module 'LocalAuthentication')
3.  While silgen emitFunction SIL function "@$sSC7LAErrorLeV15biometryLockoutSoAAVvgZ".
 for getter for biometryLockout (in module 'LocalAuthentication')
0  swift                    0x000000010941b9b3 PrintStackTraceSignalHandler(void*) + 51
1  swift                    0x000000010941b170 SignalHandler(int) + 352
2  libsystem_platform.dylib 0x00007fff7068442d _sigtramp + 29
3  libsystem_platform.dylib 0x00007ffeeafb7900 _sigtramp + 2056467696
4  swift                    0x0000000105133a2f (anonymous namespace)::CallSite::emit(swift::Lowering::SILGenFunction&, swift::Lowering::AbstractionPattern, swift::CanTypeWrapper<swift::SILFunctionType>, (anonymous namespace)::ParamLowering&, llvm::SmallVectorImpl<swift::Lowering::ManagedValue>&, llvm::SmallVectorImpl<(anonymous namespace)::DelayedArgument>&, llvm::Optional<swift::ForeignErrorConvention> const&, swift::ImportAsMemberStatus) && + 207
5  swift                    0x000000010513172b (anonymous namespace)::CallEmission::emitArgumentsForNormalApply(swift::CanTypeWrapper<swift::FunctionType>&, swift::Lowering::AbstractionPattern&, swift::CanTypeWrapper<swift::SILFunctionType>, llvm::Optional<swift::ForeignErrorConvention> const&, swift::ImportAsMemberStatus, llvm::SmallVectorImpl<swift::Lowering::ManagedValue>&, llvm::Optional<swift::SILLocation>&, swift::CanTypeWrapper<swift::FunctionType>&) + 1179
6  swift                    0x000000010512db48 (anonymous namespace)::CallEmission::apply(swift::Lowering::SGFContext) + 3688
7  swift                    0x000000010512a047 swift::Lowering::SILGenFunction::emitApplyExpr(swift::ApplyExpr*, swift::Lowering::SGFContext) + 2567
8  swift                    0x000000010520226f swift::Lowering::SILGenFunction::emitReturnExpr(swift::SILLocation, swift::Expr*) + 447
9  swift                    0x00000001051fdab6 swift::ASTVisitor<(anonymous namespace)::StmtEmitter, void, void, void, void, void, void>::visit(swift::Stmt*) + 12598
10 swift                    0x00000001051faac6 swift::ASTVisitor<(anonymous namespace)::StmtEmitter, void, void, void, void, void, void>::visit(swift::Stmt*) + 326
11 swift                    0x00000001051acb7f swift::Lowering::SILGenFunction::emitFunction(swift::FuncDecl*) + 1055
12 swift                    0x0000000105112149 swift::Lowering::SILGenModule::emitFunction(swift::FuncDecl*) + 953
13 swift                    0x00000001051108c7 swift::Lowering::SILGenModule::getFunction(swift::SILDeclRef, swift::ForDefinition_t) + 1335
14 swift                    0x0000000105206855 swift::Lowering::SILGenFunction::emitGlobalFunctionRef(swift::SILLocation, swift::SILDeclRef, swift::Lowering::SILConstantInfo, bool) + 485
15 swift                    0x0000000105132717 (anonymous namespace)::Callee::getFnValue(swift::Lowering::SILGenFunction&, bool, llvm::Optional<swift::Lowering::ManagedValue>) const & + 1239
16 swift                    0x000000010512dbd3 (anonymous namespace)::CallEmission::apply(swift::Lowering::SGFContext) + 3827
17 swift                    0x000000010513eeec swift::Lowering::SILGenFunction::emitGetAccessor(swift::SILLocation, swift::SILDeclRef, swift::SubstitutionMap, swift::Lowering::ArgumentSource&&, bool, bool, swift::Lowering::PreparedArguments&&, swift::Lowering::SGFContext, bool) + 924
18 swift                    0x00000001051c1753 (anonymous namespace)::GetterSetterComponent::get(swift::Lowering::SILGenFunction&, swift::SILLocation, swift::Lowering::ManagedValue, swift::Lowering::SGFContext) && + 275
19 swift                    0x00000001051bb9b3 swift::Lowering::SILGenFunction::emitLoadOfLValue(swift::SILLocation, swift::Lowering::LValue&&, swift::Lowering::SGFContext, bool) + 1027
20 swift                    0x0000000105182c39 swift::ASTVisitor<(anonymous namespace)::RValueEmitter, swift::Lowering::RValue, void, void, void, void, void, swift::Lowering::SGFContext>::visit(swift::Expr*, swift::Lowering::SGFContext) + 24265
21 swift                    0x00000001051f2c0b swift::Lowering::SILGenFunction::emitRValueAsOrig(swift::Expr*, swift::Lowering::AbstractionPattern, swift::Lowering::TypeLowering const&, swift::Lowering::SGFContext) + 571
22 swift                    0x0000000105196312 swift::Lowering::ManagedValue llvm::function_ref<swift::Lowering::ManagedValue (swift::Lowering::SGFContext)>::callback_fn<(anonymous namespace)::RValueEmitter::visitErasureExpr(swift::ErasureExpr*, swift::Lowering::SGFContext)::$_9>(long, swift::Lowering::SGFContext) + 98
23 swift                    0x000000010516acec void llvm::function_ref<void (swift::SILValue)>::callback_fn<swift::Lowering::SILGenFunction::emitExistentialErasure(swift::SILLocation, swift::CanType, swift::Lowering::TypeLowering const&, swift::Lowering::TypeLowering const&, llvm::ArrayRef<swift::ProtocolConformanceRef>, swift::Lowering::SGFContext, llvm::function_ref<swift::Lowering::ManagedValue (swift::Lowering::SGFContext)>, bool)::$_6>(long, swift::SILValue) + 412
24 swift                    0x0000000105152914 swift::Lowering::SILGenBuilder::bufferForExpr(swift::SILLocation, swift::SILType, swift::Lowering::TypeLowering const&, swift::Lowering::SGFContext, llvm::function_ref<void (swift::SILValue)>) + 148
25 swift                    0x0000000105168f4e swift::Lowering::SILGenFunction::emitExistentialErasure(swift::SILLocation, swift::CanType, swift::Lowering::TypeLowering const&, swift::Lowering::TypeLowering const&, llvm::ArrayRef<swift::ProtocolConformanceRef>, swift::Lowering::SGFContext, llvm::function_ref<swift::Lowering::ManagedValue (swift::Lowering::SGFContext)>, bool) + 1774
26 swift                    0x0000000105185ead swift::ASTVisitor<(anonymous namespace)::RValueEmitter, swift::Lowering::RValue, void, void, void, void, void, swift::Lowering::SGFContext>::visit(swift::Expr*, swift::Lowering::SGFContext) + 37181
27 swift                    0x000000010517cb83 swift::Lowering::SILGenFunction::emitExprInto(swift::Expr*, swift::Lowering::Initialization*, llvm::Optional<swift::SILLocation>) + 131
28 swift                    0x00000001050ff7ce swift::Lowering::ArgumentSource::forwardInto(swift::Lowering::SILGenFunction&, swift::Lowering::AbstractionPattern, swift::Lowering::Initialization*, swift::Lowering::TypeLowering const&) && + 590
29 swift                    0x00000001051905e8 (anonymous namespace)::RValueEmitter::visitCollectionExpr(swift::CollectionExpr*, swift::Lowering::SGFContext) + 2360
30 swift                    0x0000000105125eab (anonymous namespace)::ArgEmitter::emit(swift::Lowering::ArgumentSource&&, swift::Lowering::AbstractionPattern) + 5227
31 swift                    0x0000000105121513 (anonymous namespace)::ArgEmitter::emitSingleArg(swift::Lowering::ArgumentSource&&, swift::Lowering::AbstractionPattern) + 163
32 swift                    0x0000000105133cfe (anonymous namespace)::ArgEmitter::emitPreparedArgs(swift::Lowering::PreparedArguments&&, swift::Lowering::AbstractionPattern) + 238
33 swift                    0x0000000105133b79 (anonymous namespace)::CallSite::emit(swift::Lowering::SILGenFunction&, swift::Lowering::AbstractionPattern, swift::CanTypeWrapper<swift::SILFunctionType>, (anonymous namespace)::ParamLowering&, llvm::SmallVectorImpl<swift::Lowering::ManagedValue>&, llvm::SmallVectorImpl<(anonymous namespace)::DelayedArgument>&, llvm::Optional<swift::ForeignErrorConvention> const&, swift::ImportAsMemberStatus) && + 537
34 swift                    0x000000010513172b (anonymous namespace)::CallEmission::emitArgumentsForNormalApply(swift::CanTypeWrapper<swift::FunctionType>&, swift::Lowering::AbstractionPattern&, swift::CanTypeWrapper<swift::SILFunctionType>, llvm::Optional<swift::ForeignErrorConvention> const&, swift::ImportAsMemberStatus, llvm::SmallVectorImpl<swift::Lowering::ManagedValue>&, llvm::Optional<swift::SILLocation>&, swift::CanTypeWrapper<swift::FunctionType>&) + 1179
35 swift                    0x000000010512db48 (anonymous namespace)::CallEmission::apply(swift::Lowering::SGFContext) + 3688
36 swift                    0x000000010512a047 swift::Lowering::SILGenFunction::emitApplyExpr(swift::ApplyExpr*, swift::Lowering::SGFContext) + 2567
37 swift                    0x0000000105196e07 swift::Lowering::SILGenFunction::emitIgnoredExpr(swift::Expr*) + 823
38 swift                    0x000000010511cb1b swift::ASTVisitor<swift::Lowering::SILGenModule, void, void, void, void, void, void>::visit(swift::Decl*) + 1227
39 swift                    0x000000010511b86c swift::Lowering::SILGenModule::emitSourceFile(swift::SourceFile*) + 1356
40 swift                    0x000000010511d94a swift::SILModule::constructSIL(swift::ModuleDecl*, swift::Lowering::TypeConverter&, swift::SILOptions&, swift::FileUnit*) + 1530
41 swift                    0x0000000104ced71b swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 62699
42 swift                    0x0000000104c5e283 main + 1299
43 libdyld.dylib            0x00007fff7048b7fd start + 1
44 libdyld.dylib            0x000000000000000b start + 2411153423