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863f3a19ff
@effects is too low a level, and not meant for general usage outside the standard library. Therefore it deserves to be underscored like other such attributes.
33 lines
783 B
Swift
33 lines
783 B
Swift
// RUN: %empty-directory(%t)
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// RUN: %target-build-swift %s -o %t/a.out -Ounchecked
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//
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// RUN: %target-run %t/a.out
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// REQUIRES: executable_test
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import StdlibUnittest
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var DictionaryUnchecked = TestSuite("DictionaryUnchecked")
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DictionaryUnchecked.test("noCseOnInit") {
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@inline(never)
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func createDict() -> Dictionary<Int, Bool> {
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// CSE should not be able to combine both Dictionary.init() calls.
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// This did happen and resulted in a crash because Dictionary.init()
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// was defined with @_effects(readnone).
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// But this was wrong because it actually reads the array buffer (from
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// the literal).
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var Dict: Dictionary<Int, Bool> = [:]
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Dict = [:]
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Dict[0] = true
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return Dict
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}
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let Dict = createDict()
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expectTrue(Dict[0]!)
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}
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runAllTests()
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