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105e4ad592
1) Enable tests that use `import Dispatch` on Linux. Add substitution `%import-libdispatch` that needs to be used for all cross-platform tests (i.e., tests that are intended to be run on other platforms than Darwin) that do `import Dispatch` or enable thread sanitizer. 2) Make sure as many existing Dispatch and TSan tests as possible run on Linux. Mark tests that would require substantial work with `UNSUPPORTED: OS=linux-gnu`. 3) Add integration-style Swift test that shows that TSan finds a simple race when using `Dispatch.async` incorrectly. A more complete test suite for TSan's libdispatch support lives on the LLVM/compiler-rt side. rdar://problem/49177535
31 lines
860 B
Swift
31 lines
860 B
Swift
// This test case used to crash when tsan ran before co-routine lowering.
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// RUN: %target-swift-frontend -emit-ir -sanitize=thread %s | %FileCheck %s
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// TSan is only supported on 64 bit.
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// REQUIRES: PTRSIZE=64
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public class C { }
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public struct Foobar {
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var things: [String: C] = [:]
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}
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extension Foobar {
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public struct Index {
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fileprivate typealias MyIndex = Dictionary<String, C>.Values.Index
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fileprivate let myIndex: MyIndex
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fileprivate init(_ index: MyIndex) {
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self.myIndex = index
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}
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}
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// We used to crash emitting the subscript function.
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// CHECK: define{{( dllexport| protected)?}} swiftcc { i8*, %T15tsan_coroutines1CC* } @"$s15tsan_coroutines6FoobarVyAA1CCAC5IndexVcir"
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@_borrowed
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public subscript(position: Index) -> C {
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return things.values[position.myIndex]
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}
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}
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