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Crash in LLVM when compiling SwiftCompilerSources on Windows with a 5.10 toolchain #73253

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eeckstein opened this issue Apr 25, 2024 · 1 comment
Open

Crash in LLVM when compiling SwiftCompilerSources on Windows with a 5.10 toolchain #73253

eeckstein opened this issue Apr 25, 2024 · 1 comment
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@ahatanaka
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. c++ interop Feature: Interoperability with C++ c++ to swift Feature → c++ interop: c++ to swift CodeGen crash Bug: A crash, i.e., an abnormal termination of software swift 5.10 Windows Platform: Windows

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@eeckstein
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Description

The problem occurs when calling the C++ imported function from public func getFunctionType(withNoEscape: Bool) -> Type in Type.swift.

Crashes in LLVM with:

Attribute 'zeroext' applied to incompatible type!
  call void @"?getFunctionTypeWithNoEscape@BridgedType@@QEBA?AU1@_N@Z"(ptr %3, ptr zeroext sret(%struct.BridgedType) %4, i1 %0)

Reproduction

Once #73247 lands, revert the "SwiftCompilerSources: workaround a compiler crash on windows by disabling convert_function simplification" commit of this PR

Expected behavior

no crash

Environment

reproducible with top-of main on Windows

Additional information

No response
@eeckstein eeckstein added bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. triage needed This issue needs more specific labels c++ interop Feature: Interoperability with C++ Windows Platform: Windows swift 5.10 labels Apr 25, 2024
@AnthonyLatsis AnthonyLatsis added CodeGen crash Bug: A crash, i.e., an abnormal termination of software c++ to swift Feature → c++ interop: c++ to swift and removed triage needed This issue needs more specific labels labels Apr 25, 2024
@eeckstein
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Still happening in Swift 6.0

@eeckstein eeckstein mentioned this issue May 6, 2024
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@ahatanaka ahatanaka

Labels
bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. c++ interop Feature: Interoperability with C++ c++ to swift Feature → c++ interop: c++ to swift CodeGen crash Bug: A crash, i.e., an abnormal termination of software swift 5.10 Windows Platform: Windows
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@eeckstein @ahatanaka @AnthonyLatsis