test/SIL/Parser/borrow.sil

// RUN: %target-sil-opt %s | %target-sil-opt | %FileCheck %s

sil_stage canonical

import Builtin

// We do not verify here, but just make sure that all of the combinations parse and print correctly.
// CHECK-LABEL: sil @borrow_test : $@convention(thin) (@in Builtin.NativeObject, Builtin.NativeObject) -> () {
// CHECK: bb0([[ARG1:%[0-9]+]] : $*Builtin.NativeObject, [[ARG2:%[0-9]+]] : $Builtin.NativeObject):
// CHECK: begin_borrow [[ARG2]]
// CHECK: [[MEM:%.*]] = alloc_stack $Builtin.NativeObject
// CHECK: store_borrow [[ARG2]] to [[MEM]] : $*Builtin.NativeObject
// CHECK: end_borrow [[ARG1]] from [[ARG2]] : $*Builtin.NativeObject, $Builtin.NativeObject
// CHECK: end_borrow [[ARG2]] from [[ARG1]] : $Builtin.NativeObject, $*Builtin.NativeObject
// CHECK: end_borrow [[ARG1]] from [[ARG1]] : $*Builtin.NativeObject, $*Builtin.NativeObject
// CHECK: end_borrow [[ARG2]] from [[ARG2]] : $Builtin.NativeObject, $Builtin.NativeObject
sil @borrow_test : $@convention(thin) (@in Builtin.NativeObject, Builtin.NativeObject) -> () {
bb0(%0 : $*Builtin.NativeObject, %1 : $Builtin.NativeObject):
  %2 = begin_borrow %1 : $Builtin.NativeObject
  end_borrow %2 from %1 : $Builtin.NativeObject, $Builtin.NativeObject

  %3 = alloc_stack $Builtin.NativeObject
  store_borrow %1 to %3 : $*Builtin.NativeObject
  end_borrow %3 from %1 : $*Builtin.NativeObject, $Builtin.NativeObject
  dealloc_stack %3 : $*Builtin.NativeObject

  end_borrow %0 from %1 : $*Builtin.NativeObject, $Builtin.NativeObject
  end_borrow %1 from %0 : $Builtin.NativeObject, $*Builtin.NativeObject
  end_borrow %0 from %0 : $*Builtin.NativeObject, $*Builtin.NativeObject
  end_borrow %1 from %1 : $Builtin.NativeObject, $Builtin.NativeObject
  %4 = tuple()
  return %4 : $()
}