| // RUN: %target-swift-frontend -O -emit-sil %s | FileCheck %s | |
| // REQUIRES: rdar:27506150> SILOptimizer/swap_refcnt.swift fails after noreturn -> Never changes | |
| // Make sure we can swap two values in an array without retaining anything. | |
| // CHECK-LABEL: sil @_TF11swap_refcnt11swapByIndex | |
| // CHECK-NOT: strong_retain | |
| // CHECK-NOT: strong_release | |
| // CHECK: return | |
| public func swapByIndex(A: inout [Int8], x : Int, y : Int) { | |
| swap(&A[x],&A[y]) | |
| } | |