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[SR-8656] FAIL: Chatto - 4.0.3 - ChattoApp generic - iOS - Debug config #51171

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shahmishal opened this issue Aug 28, 2018 · 7 comments
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[SR-8656] FAIL: Chatto - 4.0.3 - ChattoApp generic - iOS - Debug config #51171

shahmishal opened this issue Aug 28, 2018 · 7 comments
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@DougGregor
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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 regression swift 5.0

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@shahmishal
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Previous ID SR-8656
Radar rdar://problem/43951634
Original Reporter @shahmishal
Type Bug
Status Resolved
Resolution Done

Attachment: Download

Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug, 5.0Regression, CompilerCrash
Assignee @DougGregor
Priority Medium

Watchers: @shahmishal

md5: 9707d1961273ddb8a29a3f2510ae10ee

Issue Description:

Assertion failed: (Val && "isa<> used on a null pointer"), function doit, file /Users/buildnode/jenkins/workspace-private/swift-master-source-compat-suite-debug/llvm/include/llvm/Support/Casting.h, line 106.

https://ci.swift.org/view/Source%20Compatibility/job/swift-master-source-compat-suite-debug/26/artifact/swift-source-compat-suite/FAIL_Chatto_4.0.3_BuildXcodeWorkspaceScheme_ChattoApp_generic-platform-iOS.log

Please see attached log for full detailed error.
@belkadan
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Crashing in MergeModule -> probably my fault.

@belkadan
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I'm having trouble reproducing this, in that it works when I build using the source compat suite's runner.py but doesn't even get that far when I copy the equivalent xcodebuild command and run that myself.

@belkadan
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Okay, user error. Reproduced locally.

@belkadan
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Reduced. The problem is that a property is being inferred as dynamic in one file but not in another. This would be related to the recent request-evaluator work, so over to Doug.

@belkadan
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Further analysis: we have a cycle between IsDynamicRequest, IsObjCRequest, and OverriddenDeclsRequest, via OverrideMatcher::checkOverride -> swift::getMemberTypeForComparison -> validateDecl -> swift::maybeAddAccessorsToStorage.

@DougGregor
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Should be addressed by #19259

@DougGregor
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9cda374

@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
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@DougGregor DougGregor

Labels
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 regression swift 5.0
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@belkadan @DougGregor @shahmishal @AnthonyLatsis