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// RUN: %target-swift-frontend %s -emit-ir -target %target-swift-5.1-abi-triple -disable-objc-interop | %FileCheck %s
// REQUIRES: concurrency
// LLVM does not support swifttailcc for WebAssembly target for now
// See https://github.com/apple/swift/issues/69333
// UNSUPPORTED: CPU=wasm32
public dynamic func number() async -> Int {
return 100
}
@_dynamicReplacement(for: number())
internal func _replacement_number() async -> Int {
return 200
}
// rdar://78284346 - Dynamic replacement should use musttail
// for tail calls from swifttailcc to swifttailcc
// CHECK-LABEL: define {{.*}} swifttailcc void @"$s25async_dynamic_replacement01_C7_numberSiyYaFTI"
// CHECK: musttail call swifttailcc void
// CHECK-NEXT: ret void
public func calls_number() async -> Int {
await number()
}
// CHECK-LABEL: define {{.*}}swifttailcc void @"$s25async_dynamic_replacement32indirectReturnDynamicReplaceableSi_S6ityYaKF"(ptr {{.*}}%0, ptr swiftasync %1)
// CHECK: forward_to_replaced:
// CHECK: musttail call swifttailcc void {{.*}}(ptr noalias nocapture %0, ptr swiftasync {{.*}})
public dynamic func indirectReturnDynamicReplaceable() async throws -> (Int, Int, Int, Int, Int, Int, Int) {
return (0, 0, 0, 0, 0, 0, 0)
}
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