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[SR-9281] Invalid AST when forcing result of a cast to an IUO type #51753

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swift-ci opened this issue Nov 16, 2018 · 2 comments
Open

[SR-9281] Invalid AST when forcing result of a cast to an IUO type #51753

swift-ci opened this issue Nov 16, 2018 · 2 comments
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@slavapestov
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access control Feature → modifiers: Access control and access levels 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 4.2

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@swift-ci
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Previous ID SR-9281
Radar rdar://problem/46129319
Original Reporter ranahaani (JIRA User)
Type Bug

Attachment: Download

Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug, 4.2Regression, CompilerCrash
Assignee @slavapestov
Priority Medium

md5: cd2ce39239aa20ce88c82127d16bdfc6

Issue Description:

Hi, Recently upgraded my Xcode to 10, my app was working fine on Xcode 9 but in Xcode 10 it shows an error. I posted this error at StackOverflow, Reddit, and others forum. I found no solution. I think this is kind of any bug. It used to work before I updated to Xcode 10.

find a repo under https://bitbucket.org/ranahaani/cleaniqpro.git

Here's log:

error: Segmentation fault: 11

  1. While emitting SIL

  2. While silgen emitFunction SIL function "@$S11

  3. While silgen closureexpr SIL function

I put complete Question at StackOverflow

Here's snapshot

I attached my project files.
@slavapestov
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Thanks for the bug report. I've reproduced the issue and will try to reduce a test case.

@slavapestov
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This crashes when built with -swift-version 4:

let x: Any? = nil
var s = ""
s = (x as? String!)!

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
@AnthonyLatsis AnthonyLatsis added regression swift 4.2 access control Feature → modifiers: Access control and access levels and removed 4.2 regression labels Nov 19, 2022
@AnthonyLatsis AnthonyLatsis added the crash Bug: A crash, i.e., an abnormal termination of software label Dec 12, 2022
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@slavapestov slavapestov

Labels
access control Feature → modifiers: Access control and access levels 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 4.2
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@slavapestov @swift-ci @AnthonyLatsis