; RUN: opt -S -passes=rewrite-statepoints-for-gc  < %s | FileCheck %s


; Ensure we're stipping attributes from the function signatures which are invalid
; after inserting safepoints with explicit memory semantics

declare void @f()

define ptr addrspace(1) @deref_arg(ptr addrspace(1) dereferenceable(16) %arg) gc "statepoint-example" {
; CHECK: define ptr addrspace(1) @deref_arg(ptr addrspace(1) %arg)
  call void @f()
  ret ptr addrspace(1) %arg
}

define dereferenceable(16) ptr addrspace(1) @deref_ret(ptr addrspace(1) %arg) gc "statepoint-example" {
; CHECK: define ptr addrspace(1) @deref_ret(ptr addrspace(1) %arg)
  call void @f()
  ret ptr addrspace(1) %arg
}

define ptr addrspace(1) @deref_or_null_arg(ptr addrspace(1) dereferenceable_or_null(16) %arg) gc "statepoint-example" {
; CHECK: define ptr addrspace(1) @deref_or_null_arg(ptr addrspace(1) %arg)
  call void @f()
  ret ptr addrspace(1) %arg
}

define dereferenceable_or_null(16) ptr addrspace(1) @deref_or_null_ret(ptr addrspace(1) %arg) gc "statepoint-example" {
; CHECK: define ptr addrspace(1) @deref_or_null_ret(ptr addrspace(1) %arg)
  call void @f()
  ret ptr addrspace(1) %arg
}

define ptr addrspace(1) @noalias_arg(ptr addrspace(1) noalias %arg) gc "statepoint-example" {
; CHECK: define ptr addrspace(1) @noalias_arg(ptr addrspace(1) %arg)
  call void @f()
  ret ptr addrspace(1) %arg
}

define noalias ptr addrspace(1) @noalias_ret(ptr addrspace(1) %arg) gc "statepoint-example" {
; CHECK: define ptr addrspace(1) @noalias_ret(ptr addrspace(1) %arg)
  call void @f()
  ret ptr addrspace(1) %arg
}

define ptr addrspace(1) @nofree(ptr addrspace(1) nofree %arg) nofree gc "statepoint-example" {
; CHECK: define ptr addrspace(1) @nofree(ptr addrspace(1) %arg) gc "statepoint-example" {
  call void @f()
  ret ptr addrspace(1) %arg
}

define ptr addrspace(1) @nosync(ptr addrspace(1) %arg) nosync gc "statepoint-example" {
; CHECK: define ptr addrspace(1) @nosync(ptr addrspace(1) %arg) gc "statepoint-example" {
  call void @f()
  ret ptr addrspace(1) %arg
}

define ptr addrspace(1) @readnone(ptr addrspace(1) readnone %arg) readnone gc "statepoint-example" {
; CHECK: define ptr addrspace(1) @readnone(ptr addrspace(1) %arg) gc "statepoint-example" {
  call void @f()
  ret ptr addrspace(1) %arg
}

define ptr addrspace(1) @readonly(ptr addrspace(1) readonly %arg) readonly gc "statepoint-example" {
; CHECK: define ptr addrspace(1) @readonly(ptr addrspace(1) %arg) gc "statepoint-example" {
  call void @f()
  ret ptr addrspace(1) %arg
}

define ptr addrspace(1) @writeonly(ptr addrspace(1) writeonly %arg) writeonly gc "statepoint-example" {
; CHECK: define ptr addrspace(1) @writeonly(ptr addrspace(1) %arg) gc "statepoint-example" {
  call void @f()
  ret ptr addrspace(1) %arg
}

define ptr addrspace(1) @argmemonly(ptr addrspace(1) %arg) argmemonly gc "statepoint-example" {
; CHECK: define ptr addrspace(1) @argmemonly(ptr addrspace(1) %arg) gc "statepoint-example" {
  call void @f()
  ret ptr addrspace(1) %arg
}

define ptr addrspace(1) @inaccessiblememonly(ptr addrspace(1) %arg) inaccessiblememonly gc "statepoint-example" {
; CHECK: define ptr addrspace(1) @inaccessiblememonly(ptr addrspace(1) %arg) gc "statepoint-example" {
  call void @f()
  ret ptr addrspace(1) %arg
}

define ptr addrspace(1) @inaccessiblemem_or_argmemonly(ptr addrspace(1) %arg) inaccessiblemem_or_argmemonly gc "statepoint-example" {
; CHECK: define ptr addrspace(1) @inaccessiblemem_or_argmemonly(ptr addrspace(1) %arg) gc "statepoint-example" {
  call void @f()
  ret ptr addrspace(1) %arg
}