test/IRGen/ptrauth-objc-partial-apply.sil

// RUN: %swift -swift-version 4 -target arm64e-apple-ios12.0 -parse-stdlib -parse-as-library %s -emit-ir -module-name test -Xcc -Xclang -Xcc -fptrauth-calls | %FileCheck %s --check-prefix=CHECK
// REQUIRES: objc_interop

// REQUIRES: CPU=arm64e
// REQUIRES: OS=ios

// CHECK: @"$sTa.ptrauth" = private constant { i8*, i32, i64, i64 } { i8* bitcast (void (%swift.refcounted*)* @"$sTa" to i8*), i32 0, i64 0, i64 {{.*}} }, section "llvm.ptrauth"

@objc class A {
  @objc func foo() {}
}

sil_vtable A {}

sil hidden @$s4test1AC3fooyyF : $@convention(method) (@guaranteed A) -> () {
bb0(%0 : $A):
  unreachable
}
sil hidden [thunk] @$s4test1AC3fooyyFTo : $@convention(objc_method) (A) -> () {
bb0(%0 : $A):
  unreachable
}

//   It would also be reasonable to not apply ptrauth here, but as long as we're partial_apply
// CHECK-LABEL: define swiftcc void @test0(
// CHECK:         call swiftcc void bitcast ({ i8*, i32, i64, i64 }* @"$sTa.ptrauth" to void (%swift.refcounted*)*)(%swift.refcounted* swiftself {{%.*}}) [ "ptrauth"(i32 0, i64 {{.*}}) ]
sil @test0 : $@convention(thin) (@guaranteed A) -> () {
bb0(%0: $A):
  %method = objc_method %0 : $A, #A.foo!foreign, $@convention(objc_method) (A) -> ()
  %partial = partial_apply [callee_guaranteed] %method(%0) : $@convention(objc_method) (A) -> ()
  apply %partial() : $ @callee_guaranteed () -> ()
  %result = tuple ()
  return %result : $()
}