// RUN: %target-swift-frontend %s -emit-ir | FileCheck %s
sil_stage canonical

import Builtin

enum ManyEmptyCases {
    case A
    case B
    case C(Builtin.Int32)
}

// CHECK-LABEL: define{{( protected)?}} i1 @select_enum_A(i32, i1)
// CHECK:         [[PAYLOAD:%.*]] = icmp eq i32 %0, 0
// CHECK:         [[EXTRA:%.*]] = and i1 %1, [[PAYLOAD]]
// CHECK:         ret i1 [[EXTRA]]
sil @select_enum_A : $@convention(thin) (ManyEmptyCases) -> Builtin.Int1 {
entry(%0 : $ManyEmptyCases):
  %4 = integer_literal $Builtin.Int1, -1          // user: %6
  %5 = integer_literal $Builtin.Int1, 0           // user: %6
  %6 = select_enum %0 : $ManyEmptyCases, case #ManyEmptyCases.A!enumelt: %4, default %5 : $Builtin.Int1
  return %6 : $Builtin.Int1
}

// CHECK-LABEL: define{{( protected)?}} i1 @select_enum_B(i32, i1)
// CHECK:         [[PAYLOAD:%.*]] = icmp eq i32 %0, 1
// CHECK:         [[EXTRA:%.*]] = and i1 %1, [[PAYLOAD]]
// CHECK:         ret i1 [[EXTRA]]
sil @select_enum_B : $@convention(thin) (ManyEmptyCases) -> Builtin.Int1 {
entry(%0 : $ManyEmptyCases):
  %4 = integer_literal $Builtin.Int1, -1          // user: %6
  %5 = integer_literal $Builtin.Int1, 0           // user: %6
  %6 = select_enum %0 : $ManyEmptyCases, case #ManyEmptyCases.B!enumelt: %4, default %5 : $Builtin.Int1
  return %6 : $Builtin.Int1
}