// RUN: cir-opt %s -verify-diagnostics -split-input-file

!u32i = !cir.int<u, 32>
cir.func @reference_unknown_vtable() {
  // expected-error @below {{'cir.vtable.address_point' op 'some_vtable' does not reference a valid cir.global}}
  %0 = cir.vtable.address_point(@some_vtable, address_point = <index = 0, offset = 2>) : !cir.vptr
  cir.return
}

// -----

!u8i = !cir.int<u, 8>
!u32i = !cir.int<u, 32>
cir.global linkonce_odr @_ZTT1D = #cir.const_array<[#cir.global_view<@_ZTV1D, [0 : i32, 3 : i32]> : !cir.ptr<!u8i>, #cir.global_view<@_ZTC1D0_1B, [0 : i32, 3 : i32]> : !cir.ptr<!u8i>]> : !cir.array<!cir.ptr<!u8i> x 2>
cir.func @reference_non_vtable() {
  // expected-error @below {{Expected #cir.vtable in initializer for global '_ZTT1D'}}
  %0 = cir.vtable.address_point(@_ZTT1D, address_point = <index = 0, offset = 2>) : !cir.vptr
  cir.return
}

// -----

!rec_S = !cir.struct<"S" {!cir.vptr}>
!u8i = !cir.int<u, 8>
!rec_anon_struct = !cir.struct<{!cir.array<!cir.ptr<!u8i> x 4>}>
module {
  // expected-error @below {{expected !cir.struct or !cir.union type result}}
  cir.global external @_ZTV1S = #cir.vtable<{#cir.const_array<[#cir.ptr<null> : !cir.ptr<!u8i>, #cir.ptr<null> : !cir.ptr<!u8i>, #cir.global_view<@_ZN1S3keyEv> : !cir.ptr<!u8i>, #cir.global_view<@_ZN1S6nonKeyEv> : !cir.ptr<!u8i>]> : !cir.array<!cir.ptr<!u8i> x 4>}> : !cir.ptr<!rec_anon_struct>
  cir.func private dso_local @_ZN1S3keyEv(%arg0: !cir.ptr<!rec_S>)
  cir.func private dso_local @_ZN1S6nonKeyEv(%arg0: !cir.ptr<!rec_S>)
}

// -----

!rec_S = !cir.struct<"S" {!cir.vptr}>
!u8i = !cir.int<u, 8>
!rec_anon_struct = !cir.struct<{}>
module {
  // expected-error @below {{expected record type with one or more subtype}}
  cir.global external @_ZTV1S = #cir.vtable<{}> : !rec_anon_struct {alignment = 8 : i64}
  cir.func private dso_local @_ZN1S3keyEv(%arg0: !cir.ptr<!rec_S>)
  cir.func private dso_local @_ZN1S6nonKeyEv(%arg0: !cir.ptr<!rec_S>)
}

// -----

!rec_S = !cir.struct<"S" {!cir.vptr}>
!u8i = !cir.int<u, 8>
!rec_anon_struct = !cir.struct<{!cir.ptr<!u8i>}>
module {
  // expected-error @below {{expected constant array subtype}}
  cir.global external @_ZTV1S = #cir.vtable<{#cir.ptr<null> : !cir.ptr<!u8i>}> : !rec_anon_struct {alignment = 8 : i64}
  cir.func private dso_local @_ZN1S3keyEv(%arg0: !cir.ptr<!rec_S>)
  cir.func private dso_local @_ZN1S6nonKeyEv(%arg0: !cir.ptr<!rec_S>)
}

// -----

!rec_S = !cir.struct<"S" {!cir.vptr}>
!u64i = !cir.int<u, 64>
!rec_anon_struct = !cir.struct<{!cir.array<!u64i x 4>}>
module {
  // expected-error @below {{expected GlobalViewAttr or ConstPtrAttr}}
  cir.global external @_ZTV1S = #cir.vtable<{#cir.const_array<[#cir.int<1> : !u64i, #cir.int<1> : !u64i, #cir.int<3> : !u64i, #cir.int<4> : !u64i]> : !cir.array<!u64i x 4>}> : !rec_anon_struct {alignment = 8 : i64}
  cir.func private dso_local @_ZN1S3keyEv(%arg0: !cir.ptr<!rec_S>)
  cir.func private dso_local @_ZN1S6nonKeyEv(%arg0: !cir.ptr<!rec_S>)
}

// -----

!rec_Q = !cir.struct<"Q" {!cir.vptr}>
!rec_S = !cir.struct<"S" {!cir.vptr}>
!rec_S2 = !cir.struct<"S2" {!rec_Q, !rec_S}>
!u8i = !cir.int<u, 8>
!rec_anon_struct = !cir.struct<{!cir.array<!cir.ptr<!u8i> x 4>, !cir.ptr<!u8i>}>
module {
  // expected-error @below {{expected constant array subtype}}
  cir.global external @_ZTV2S2 = #cir.vtable<{#cir.const_array<[#cir.ptr<null> : !cir.ptr<!u8i>, #cir.ptr<null> : !cir.ptr<!u8i>, #cir.global_view<@_ZN1S3keyEv> : !cir.ptr<!u8i>, #cir.global_view<@_ZN1S6nonKeyEv> : !cir.ptr<!u8i>]> : !cir.array<!cir.ptr<!u8i> x 4>, #cir.ptr<null> : !cir.ptr<!u8i>}> : !rec_anon_struct {alignment = 8 : i64}

  cir.func private dso_local @_ZN1S3keyEv(%arg0: !cir.ptr<!rec_S>)
  cir.func private dso_local @_ZN1S6nonKeyEv(%arg0: !cir.ptr<!rec_S>)
  cir.func private dso_local @_ZN2S23keyEv(%arg0: !cir.ptr<!rec_S2>)
}

// -----

!u32i = !cir.int<u, 32>
!void = !cir.void
cir.func @reference_unknown_vtt() {
  // expected-error @below {{'cir.vtt.address_point' op 'some_vtt' does not reference a valid cir.global}}
  %0 = cir.vtt.address_point @some_vtt, offset = 1 -> !cir.ptr<!cir.ptr<!void>>
  cir.return
}

// -----

!u8i = !cir.int<u, 8>
!u32i = !cir.int<u, 32>
!void = !cir.void
!rec_anon_struct = !cir.struct<{!cir.array<!cir.ptr<!u8i> x 4>}>
cir.global external @_ZTV1S = #cir.vtable<{#cir.const_array<[#cir.ptr<null> : !cir.ptr<!u8i>, #cir.ptr<null> : !cir.ptr<!u8i>, #cir.global_view<@_ZN1S3keyEv> : !cir.ptr<!u8i>, #cir.global_view<@_ZN1S6nonKeyEv> : !cir.ptr<!u8i>]> : !cir.array<!cir.ptr<!u8i> x 4>}> : !rec_anon_struct {alignment = 8 : i64}
cir.func @reference_non_vtt() {
  // expected-error @below {{'cir.vtt.address_point' op Expected constant array in initializer for global VTT '_ZTV1S'}}
  %0 = cir.vtt.address_point @_ZTV1S, offset = 1 -> !cir.ptr<!cir.ptr<!void>>
  cir.return
}

// -----

!u8i = !cir.int<u, 8>
!u32i = !cir.int<u, 32>
!void = !cir.void
!rec_anon_struct = !cir.struct<{!cir.array<!cir.ptr<!u8i> x 4>}>
!rec_C = !cir.struct<class "C" {!cir.vptr}>
cir.global linkonce_odr @_ZTT1C = #cir.const_array<[#cir.global_view<@_ZTV1C, [0 : i32, 3 : i32]> : !cir.ptr<!u8i>, #cir.global_view<@_ZTC1C0_1B, [0 : i32, 3 : i32]> : !cir.ptr<!u8i>]> : !cir.array<!cir.ptr<!u8i> x 2> {alignment = 8 : i64}
cir.func @reference_name_and_value(%arg0: !cir.ptr<!rec_C>, %arg1: !cir.ptr<!cir.ptr<!void>>) {
  // expected-error @below {{'cir.vtt.address_point' op should use either a symbol or value, but not both}}
  %0 = cir.vtt.address_point @_ZTT1C %arg1 : !cir.ptr<!cir.ptr<!void>>, offset = 1 -> !cir.ptr<!cir.ptr<!void>>
  cir.return
}

// -----

!u8i = !cir.int<u, 8>
!u32i = !cir.int<u, 32>
!void = !cir.void
!rec_anon_struct = !cir.struct<{!cir.array<!cir.ptr<!u8i> x 4>}>
!rec_C = !cir.struct<class "C" {!cir.vptr}>
cir.global linkonce_odr @_ZTT1C = #cir.const_array<[#cir.global_view<@_ZTV1C, [0 : i32, 3 : i32]> : !cir.ptr<!u8i>, #cir.global_view<@_ZTC1C0_1B, [0 : i32, 3 : i32]> : !cir.ptr<!u8i>]> : !cir.array<!cir.ptr<!u8i> x 2> {alignment = 8 : i64}
cir.func @bad_return_type_for_vtt_addrpoint() {
  // expected-error @below {{result type must be '!cir.ptr<!cir.ptr<!cir.void>>', but provided result type is '!cir.ptr<!cir.int<u, 8>>'}}
  %0 = cir.vtt.address_point @_ZTT1C, offset = 1 -> !cir.ptr<!u8i>
  cir.return
}