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[SR-10204] CompileSwift normal arm64 hangs during archive build #52604

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mman opened this issue Mar 27, 2019 · 7 comments
Closed

[SR-10204] CompileSwift normal arm64 hangs during archive build #52604

mman opened this issue Mar 27, 2019 · 7 comments
Labels
bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself optimized only Flag: An issue whose reproduction requires optimized compilation regression swift 5.0

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@mman
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mman commented Mar 27, 2019

Previous ID SR-10204
Radar rdar://problem/48514339
Original Reporter @mman
Type Bug
Status Resolved
Resolution Done

Attachment: Download

Environment

Xcode 10.2 (10E125) on macOS 10.14.4 (18E226)

Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug, 5.0Regression, OptimizedOnly
Assignee None
Priority Medium

md5: 85998c2f4089de75f5e05a63f5a6d7f1

Issue Description:

I have today migrated my project to Swift 5 (no changes) and it hangs during archive step in Xcode 10.2. The project uses default settings for release - that is Whole Module compilation mode, and optimize for speed.

If I change the compilation mode to incremental, everything compiles again.

Attached is a command that hangs and process sample from Activity Monitor.
@mman
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mman commented Mar 27, 2019

  • Changing swift optimization mode to none or size will also make it archive nicely while keeping whole module compilation mode.
      • Worked fine in Xcode 10.1 with swift 4.2.1.
  • It looks like this hang is caused by a combination of swift 5 + whole module + -Ospeed

@belkadan
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cc @bob-wilson, @eeckstein

@belkadan
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Is it possible for you to share your project, either here or with just Apple engineers at https://bugreport.apple.com?

@eeckstein
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This is a dup of rdar://problem/48514339

To workaround you can disable the optimization which causes the hang by adding the compile flags
-Xllvm -sil-disable-pass=access-enforcement-opts

@eeckstein
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No need to share the project

@bob-wilson
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This was fixed in #23190

@mman
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mman commented Mar 28, 2019

Thanks guys for your prompt response, just for the record I can confirm that adding ``-Xllvm -sil-disable-pass=access-enforcement-opts`` to Swift Custom Flags makes the project archive again.

@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 optimized only Flag: An issue whose reproduction requires optimized compilation regression swift 5.0
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@mman @belkadan @eeckstein @bob-wilson @AnthonyLatsis