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113e23df03
* Disallow stores in the return -> argument path. When walking up in the EscapeUtils, it's allowed to follow stores. Therefore stores wouldn't be handled correctly. * Also make sure that there is a return -> argument path at all Fixes a wrong address-escaping effect in case the called function copies an indirect argument to a newly created object. rdar://105133434
36 lines
769 B
Swift
36 lines
769 B
Swift
// RUN: %target-swift-frontend -O -module-name=test -emit-sil %s | %FileCheck %s
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protocol P {}
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public struct S {
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let p: P // force S to be an address-only type
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let i: Int
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}
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public final class X {
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let s: S
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init(s: S) {
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self.s = s
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}
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}
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@inline(never)
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func createX(s: S) -> X {
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return X(s: s)
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}
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// Test that the load is a barrier for release hoisting and that the strong_release is not hoisted above the load.
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// CHECK-LABEL: sil @$s4test6testit1sSiAA1SV_tF
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// CHECK: [[X:%[0-9]+]] = apply
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// CHECK: [[R:%[0-9]+]] = load
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// CHECK: strong_release [[X]]
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// CHECK: return [[R]]
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// CHECK: } // end sil function '$s4test6testit1sSiAA1SV_tF'
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public func testit(s: S) -> Int {
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let x = createX(s: s)
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return x.s.i
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}
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