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[SR-5974] compiler segfault #48533

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swift-ci opened this issue Sep 24, 2017 · 7 comments
Closed

[SR-5974] compiler segfault #48533

swift-ci opened this issue Sep 24, 2017 · 7 comments
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@slavapestov
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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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@swift-ci
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Previous ID SR-5974
Radar rdar://problem/36256335
Original Reporter hexdreamer (JIRA User)
Type Bug
Status Closed
Resolution Done
Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug, CompilerCrash, SILGen
Assignee @slavapestov
Priority Medium

md5: 9ee2e949e713f92c98ef4aa6d6eda8db

is duplicated by:

  • SR-6662 Compiler crash: Basic blocks must end with a terminator in throwing init

Issue Description:

CompileSwift normal x86_64 /Users/kenny/Projects/HiDef/HiDef/PDFileAudioSource.swift
    cd /Users/kenny/Projects/HiDef
    /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -frontend -c /Users/kenny/Projects/HiDef/HiDef/PDAudioSource.swift /Users/kenny/Projects/HiDef/HiDef/PDAudioPlayer.swift /Users/kenny/Projects/HiDef/HiDef/ViewController.swift /Users/kenny/Projects/HiDef/HiDef/AppDelegate.swift /Users/kenny/Projects/HiDef/HiDef/PDAudioBuffer.swift -primary-file /Users/kenny/Projects/HiDef/HiDef/PDFileAudioSource.swift -target x86_64-apple-ios11.0 -enable-objc-interop -sdk /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator11.0.sdk -I /Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Products/Debug-iphonesimulator -F /Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Products/Debug-iphonesimulator -enable-testing -g -module-cache-path /Users/kenny/build/ModuleCache -swift-version 4 -enforce-exclusivity=checked -D DEBUG -serialize-debugging-options -Xcc -I/Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Intermediates.noindex/HiDef.build/Debug-iphonesimulator/HiDef.build/swift-overrides.hmap -Xcc -iquote -Xcc /Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Intermediates.noindex/HiDef.build/Debug-iphonesimulator/HiDef.build/HiDef-generated-files.hmap -Xcc -I/Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Intermediates.noindex/HiDef.build/Debug-iphonesimulator/HiDef.build/HiDef-own-target-headers.hmap -Xcc -I/Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Intermediates.noindex/HiDef.build/Debug-iphonesimulator/HiDef.build/HiDef-all-target-headers.hmap -Xcc -iquote -Xcc /Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Intermediates.noindex/HiDef.build/Debug-iphonesimulator/HiDef.build/HiDef-project-headers.hmap -Xcc -I/Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Products/Debug-iphonesimulator/include -Xcc -I/Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Intermediates.noindex/HiDef.build/Debug-iphonesimulator/HiDef.build/DerivedSources/x86_64 -Xcc -I/Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Intermediates.noindex/HiDef.build/Debug-iphonesimulator/HiDef.build/DerivedSources -Xcc -DDEBUG=1 -Xcc -working-directory/Users/kenny/Projects/HiDef -emit-module-doc-path /Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Intermediates.noindex/HiDef.build/Debug-iphonesimulator/HiDef.build/Objects-normal/x86_64/PDFileAudioSource~partial.swiftdoc -serialize-diagnostics-path /Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Intermediates.noindex/HiDef.build/Debug-iphonesimulator/HiDef.build/Objects-normal/x86_64/PDFileAudioSource.dia -Onone -module-name HiDef -emit-module-path /Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Intermediates.noindex/HiDef.build/Debug-iphonesimulator/HiDef.build/Objects-normal/x86_64/PDFileAudioSource~partial.swiftmodule -emit-dependencies-path /Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Intermediates.noindex/HiDef.build/Debug-iphonesimulator/HiDef.build/Objects-normal/x86_64/PDFileAudioSource.d -emit-reference-dependencies-path /Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Intermediates.noindex/HiDef.build/Debug-iphonesimulator/HiDef.build/Objects-normal/x86_64/PDFileAudioSource.swiftdeps -o /Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Intermediates.noindex/HiDef.build/Debug-iphonesimulator/HiDef.build/Objects-normal/x86_64/PDFileAudioSource.o -index-store-path /Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Index/DataStore -index-system-modules

0  swift                    0x0000000105628dba PrintStackTraceSignalHandler(void*) + 42
1  swift                    0x00000001056281f6 SignalHandler(int) + 662
2  libsystem_platform.dylib 0x00007fffe10eeb3a _sigtramp + 26
3  libsystem_platform.dylib 0x00007fb92c24ada0 _sigtramp + 1259717248
4  swift                    0x0000000101fdb60b llvm::IRBuilder<llvm::ConstantFolder, llvm::IRBuilderDefaultInserter>::CreateCondBr(llvm::Value*, llvm::BasicBlock*, llvm::BasicBlock*, llvm::MDNode*, llvm::MDNode*) + 75
5  swift                    0x00000001021509ed swift::SILVisitor<(anonymous namespace)::IRGenSILFunction, void>::visit(swift::ValueBase*) + 108445
6  swift                    0x0000000102133a80 swift::irgen::IRGenModule::emitSILFunction(swift::SILFunction*) + 9152
7  swift                    0x000000010203e4be swift::irgen::IRGenerator::emitGlobalTopLevel() + 1022
8  swift                    0x0000000102115c4b 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) + 1243
9  swift                    0x0000000101f9c17a performCompile(swift::CompilerInstance&, swift::CompilerInvocation&, llvm::ArrayRef<char const*>, int&, swift::FrontendObserver*, swift::UnifiedStatsReporter*) + 16778
10 swift                    0x0000000101f96784 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 7716
11 swift                    0x0000000101f4b6a8 main + 12248
12 libdyld.dylib            0x00007fffe0edf235 start + 1
13 libdyld.dylib            0x0000000000000047 start + 521276947
Stack dump:
0.  Program arguments: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -frontend -c /Users/kenny/Projects/HiDef/HiDef/PDAudioSource.swift /Users/kenny/Projects/HiDef/HiDef/PDAudioPlayer.swift /Users/kenny/Projects/HiDef/HiDef/ViewController.swift /Users/kenny/Projects/HiDef/HiDef/AppDelegate.swift /Users/kenny/Projects/HiDef/HiDef/PDAudioBuffer.swift -primary-file /Users/kenny/Projects/HiDef/HiDef/PDFileAudioSource.swift -target x86_64-apple-ios11.0 -enable-objc-interop -sdk /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator11.0.sdk -I /Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Products/Debug-iphonesimulator -F /Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Products/Debug-iphonesimulator -enable-testing -g -module-cache-path /Users/kenny/build/ModuleCache -swift-version 4 -enforce-exclusivity=checked -D DEBUG -serialize-debugging-options -Xcc -I/Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Intermediates.noindex/HiDef.build/Debug-iphonesimulator/HiDef.build/swift-overrides.hmap -Xcc -iquote -Xcc /Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Intermediates.noindex/HiDef.build/Debug-iphonesimulator/HiDef.build/HiDef-generated-files.hmap -Xcc -I/Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Intermediates.noindex/HiDef.build/Debug-iphonesimulator/HiDef.build/HiDef-own-target-headers.hmap -Xcc -I/Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Intermediates.noindex/HiDef.build/Debug-iphonesimulator/HiDef.build/HiDef-all-target-headers.hmap -Xcc -iquote -Xcc /Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Intermediates.noindex/HiDef.build/Debug-iphonesimulator/HiDef.build/HiDef-project-headers.hmap -Xcc -I/Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Products/Debug-iphonesimulator/include -Xcc -I/Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Intermediates.noindex/HiDef.build/Debug-iphonesimulator/HiDef.build/DerivedSources/x86_64 -Xcc -I/Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Intermediates.noindex/HiDef.build/Debug-iphonesimulator/HiDef.build/DerivedSources -Xcc -DDEBUG=1 -Xcc -working-directory/Users/kenny/Projects/HiDef -emit-module-doc-path /Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Intermediates.noindex/HiDef.build/Debug-iphonesimulator/HiDef.build/Objects-normal/x86_64/PDFileAudioSource~partial.swiftdoc -serialize-diagnostics-path /Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Intermediates.noindex/HiDef.build/Debug-iphonesimulator/HiDef.build/Objects-normal/x86_64/PDFileAudioSource.dia -Onone -module-name HiDef -emit-module-path /Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Intermediates.noindex/HiDef.build/Debug-iphonesimulator/HiDef.build/Objects-normal/x86_64/PDFileAudioSource~partial.swiftmodule -emit-dependencies-path /Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Intermediates.noindex/HiDef.build/Debug-iphonesimulator/HiDef.build/Objects-normal/x86_64/PDFileAudioSource.d -emit-reference-dependencies-path /Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Intermediates.noindex/HiDef.build/Debug-iphonesimulator/HiDef.build/Objects-normal/x86_64/PDFileAudioSource.swiftdeps -o /Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Build/Intermediates.noindex/HiDef.build/Debug-iphonesimulator/HiDef.build/Objects-normal/x86_64/PDFileAudioSource.o -index-store-path /Users/kenny/build/HiDef-cnxbgeogfnawnegnhodnpwkhwnac/Index/DataStore -index-system-modules
1.  While emitting IR SIL function "@_T05HiDef17PDFileAudioSourceCACSg10Foundation3URLV3url_tcfc".
for 'init(url:)' at /Users/kenny/Projects/HiDef/HiDef/PDFileAudioSource.swift:16:5
@swift-ci
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Comment by Kenny Leung (JIRA)

The code can be found at:

hexdreamer/hidef@cbb26d1

@belkadan
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Slightly better link: https://github.com/hexdreamer/hidef/tree/cbb26d1da72fca63a492f8aabd52f09d1e31d9a7

@belkadan
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   SIL verification failed: Basic blocks must end with a terminator instruction: isa<TermInst>(BB.back())
In function:
// PDFileAudioSource.init(url:)
sil @_T05HiDef17PDFileAudioSourceCACSg10Foundation3URLV3url_tcfc : $@convention(method) (@owned URL, @owned PDFileAudioSource) -> @owned Optional<PDFileAudioSource> {

bb8:                                              // Preds: bb5
  %98 = unchecked_enum_data %86 : $Optional<PDAudioSource>, #Optional.some!enumelt.1 // user: %99
  %99 = unchecked_ref_cast %98 : $PDAudioSource to $PDFileAudioSource // user: %100
  store %99 to [init] %4 : $*PDFileAudioSource    // id: %100
  %101 = load [copy] %4 : $*PDFileAudioSource     // user: %102
  %102 = enum $Optional<PDFileAudioSource>, #Optional.some!enumelt.1, %101 : $PDFileAudioSource // user: %93

The relevant initializer:

    init?(url:URL) {
        var audioFileID :AudioFileID?
        let status = AudioFileOpenURL(url as CFURL, .readPermission, 0, &audioFileID)
        if ( status != 0 ) {
            return nil
        }
        guard let nnAudioFileID = audioFileID else {
            return nil
        }
        
        self.fileURL = url
        self.mAudioFile = nnAudioFileID
    }

…with a base class in another file:

class PDAudioSource {

    let mDataFormat:AudioStreamBasicDescription                     // 2

    init?() {
        return nil
    }
    
    func fillBuffer(_ buffer:PDAudioBuffer) {}
}

That means there's an implicitly inserted super.init(), which we then have to check for failure. (It will always fail, but that's not important at the moment; this is failing in a non-WMO build where we can't see that.) Sounds like @slavapestov's area.

@belkadan
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belkadan commented Jan 2, 2018

Reduced test case in SR-6662.

@swift-ci create

@slavapestov
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#13777

@AnnaZaks
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AnnaZaks mannequin commented Jul 26, 2018

hexdreamer (JIRA User), Could you verify if the problem is fixed and if so move the JIRA to "Closed"?

Thanks!
Anna

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Comment by Kenny Leung (JIRA)

Confirmed that this is fixed in the Swift Development Snapshot from 5/13/18.

@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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@slavapestov slavapestov

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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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