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69e4b95fb8
Although nonescaping closures are representationally trivial pointers to their on-stack context, it is useful to model them as borrowing their captures, which allows for checking correct use of move-only values across the closure, and lets us model the lifetime dependence between a closure and its captures without an ad-hoc web of `mark_dependence` instructions. During ownership elimination, We eliminate copy/destroy_value instructions and end the partial_apply's lifetime with an explicit dealloc_stack as before, for compatibility with existing IRGen and non-OSSA aware passes.
13 lines
262 B
Swift
13 lines
262 B
Swift
// RUN: %target-swift-frontend -emit-sil -verify %s | %FileCheck %s
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func foo<T>(_ a: T) -> Int {
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return 0
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}
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func foo(_ a: (Int) -> (Int)) -> Int {
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return 42
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}
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// CHECK: function_ref @$s12rdar351421213fooyS3iXEF :
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let _ = foo({ (a: Int) -> Int in a + 1 })
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