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[SR-8654] Trying to get Protocol.method crashes the compiler #51169

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swift-ci opened this issue Aug 28, 2018 · 0 comments
Closed

[SR-8654] Trying to get Protocol.method crashes the compiler #51169

swift-ci opened this issue Aug 28, 2018 · 0 comments
Labels
bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself

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Previous ID SR-8654
Radar None
Original Reporter grego (JIRA User)
Type Bug
Status Resolved
Resolution Duplicate
Environment

Apple Swift version 4.2 (swiftlang-1000.0.36 clang-1000.10.44)
Target: x86_64-apple-darwin18.0.0

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

md5: 80922d26a768e1875cf43e26d655807e

duplicates:

  • SR-75 Referencing a protocol function crashes the compiler

Issue Description:

Minimal example:

protocol P {
    func f()
}

let pf = P.f

Trace:

0  swift                    0x0000000110f5637a PrintStackTraceSignalHandler(void*) + 42
1  swift                    0x0000000110f55b2e SignalHandler(int) + 302
2  libsystem_platform.dylib 0x00007fff7da19b3d _sigtramp + 29
3  swift                    0x000000010e0e2afd getSILFunctionType(swift::SILModule&, swift::Lowering::AbstractionPattern, swift::CanTypeWrapper<swift::AnyFunctionType>, swift::AnyFunctionType::ExtInfo, (anonymous namespace)::Conventions const&, swift::ForeignInfo const&, llvm::Optional<swift::SILDeclRef>, llvm::Optional<swift::ProtocolConformanceRef>) + 3709
4  swift                    0x000000010dbcdb19 swift::Lowering::SILGenFunction::manageOpaqueValue(swift::Lowering::SILGenFunction::OpaqueValueState&, swift::SILLocation, swift::Lowering::SGFContext) + 169
5  swift                    0x000000010dbe2522 swift::ASTVisitor<(anonymous namespace)::RValueEmitter, swift::Lowering::RValue, void, void, void, void, void, swift::Lowering::SGFContext>::visit(swift::Expr*, swift::Lowering::SGFContext) + 10002
6  swift                    0x000000010dbe1051 swift::ASTVisitor<(anonymous namespace)::RValueEmitter, swift::Lowering::RValue, void, void, void, void, void, swift::Lowering::SGFContext>::visit(swift::Expr*, swift::Lowering::SGFContext) + 4673
7  swift                    0x000000010dbe0d61 swift::ASTVisitor<(anonymous namespace)::RValueEmitter, swift::Lowering::RValue, void, void, void, void, void, swift::Lowering::SGFContext>::visit(swift::Expr*, swift::Lowering::SGFContext) + 3921
8  swift                    0x000000010dbf5129 void llvm::function_ref<void (swift::Expr*)>::callback_fn<swift::Lowering::RValue swift::Lowering::SILGenFunction::emitOpenExistentialExpr<swift::Lowering::RValue, (anonymous namespace)::RValueEmitter::visitOpenExistentialExpr(swift::OpenExistentialExpr*, swift::Lowering::SGFContext)::$_16>(swift::OpenExistentialExpr*, (anonymous namespace)::RValueEmitter::visitOpenExistentialExpr(swift::OpenExistentialExpr*, swift::Lowering::SGFContext)::$_16)::'lambda'(swift::Expr*)>(long, swift::Expr*) + 41
9  swift                    0x000000010dbf558c swift::Lowering::SILGenFunction::emitOpenExistentialExprImpl(swift::OpenExistentialExpr*, llvm::function_ref<void (swift::Expr*)>) + 1004
10 swift                    0x000000010dbe1b97 swift::ASTVisitor<(anonymous namespace)::RValueEmitter, swift::Lowering::RValue, void, void, void, void, void, swift::Lowering::SGFContext>::visit(swift::Expr*, swift::Lowering::SGFContext) + 7559
11 swift                    0x000000010dbdfc17 swift::Lowering::SILGenFunction::emitExprInto(swift::Expr*, swift::Lowering::Initialization*, llvm::Optional<swift::SILLocation>) + 135
12 swift                    0x000000010dbd2da3 swift::Lowering::SILGenFunction::emitPatternBinding(swift::PatternBindingDecl*, unsigned int) + 227
13 swift                    0x000000010db7a49d swift::ASTVisitor<swift::Lowering::SILGenFunction, void, void, void, void, void, void>::visit(swift::Decl*) + 141
14 swift                    0x000000010db7cb6f swift::ASTVisitor<swift::Lowering::SILGenModule, void, void, void, void, void, void>::visit(swift::Decl*) + 431
15 swift                    0x000000010db7ba2b swift::Lowering::SILGenModule::emitSourceFile(swift::SourceFile*, unsigned int) + 939
16 swift                    0x000000010db7d632 swift::SILModule::constructSIL(swift::ModuleDecl*, swift::SILOptions&, swift::FileUnit*, llvm::Optional<unsigned int>, bool) + 1410
17 swift                    0x000000010d21799e performCompile(swift::CompilerInstance&, swift::CompilerInvocation&, llvm::ArrayRef<char const*>, int&, swift::FrontendObserver*, swift::UnifiedStatsReporter*) + 29838
18 swift                    0x000000010d20d015 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 7717
19 swift                    0x000000010d1b2c95 main + 1349
20 libdyld.dylib            0x00007fff7d8300a1 start + 1
Stack dump:
0.  Program arguments: /Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -frontend -interpret test.swift -enable-objc-interop -sdk /Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk -color-diagnostics -module-name test 
Segmentation fault: 11
@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself
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