// RUN: %swift -prespecialize-generic-metadata -target %module-target-future -emit-ir %s | %FileCheck %s -DINT=i%target-ptrsize -DALIGNMENT=%target-alignment --check-prefix=CHECK --check-prefix=CHECK-%target-vendor

// REQUIRES: VENDOR=apple || OS=linux-gnu
// UNSUPPORTED: CPU=i386 && OS=ios
// UNSUPPORTED: CPU=armv7 && OS=ios
// UNSUPPORTED: CPU=armv7s && OS=ios

// CHECK: @"$s4main3Box[[UNIQUE_ID_1:[A-Za-z0-9_]+]]LLCySiGMf" = 

//              CHECK: @"$s4main5Value[[UNIQUE_ID_1]]LLCyAA3BoxACLLCySiGGMf" = linkonce_odr hidden 
//   CHECK-apple-SAME: global 
// CHECK-unknown-SAME: constant 
//         CHECK-SAME: <{
//         CHECK-SAME:   void (
//         CHECK-SAME:     %T4main5Value[[UNIQUE_ID_1]]LLC*
//         CHECK-SAME:   )*,
//         CHECK-SAME:   i8**,
//                   :   [[INT]],
//   CHECK-apple-SAME:   %objc_class*,
// CHECK-unknown-SAME:   %swift.type*,
//   CHECK-apple-SAME:   %swift.opaque*,
//   CHECK-apple-SAME:   %swift.opaque*,
//   CHECK-apple-SAME:   [[INT]],
//         CHECK-SAME:   i32,
//         CHECK-SAME:   i32,
//         CHECK-SAME:   i32,
//         CHECK-SAME:   i16,
//         CHECK-SAME:   i16,
//         CHECK-SAME:   i32,
//         CHECK-SAME:   i32,
//         CHECK-SAME:   %swift.type_descriptor*,
//         CHECK-SAME:   i8*,
//         CHECK-SAME:   %swift.type*,
//         CHECK-SAME:   [[INT]],
//         CHECK-SAME:   %T4main5Value[[UNIQUE_ID_1]]LLC* (
//         CHECK-SAME:     %swift.opaque*,
//         CHECK-SAME:     %swift.type*
//         CHECK-SAME:   )*
//         CHECK-SAME: }> <{
//         CHECK-SAME:   void (
//         CHECK-SAME:     %T4main5Value[[UNIQUE_ID_1]]LLC*
//         CHECK-SAME:   $s4main5Value[[UNIQUE_ID_1]]LLCfD
//         CHECK-SAME:   $sBoWV
//   CHECK-apple-SAME:   $s4main5Value[[UNIQUE_ID_1]]LLCyAA3BoxACLLCySiGGMM
// CHECK-unknown-SAME:   [[INT]] 0,
//   CHECK-apple-SAME:   OBJC_CLASS_$__TtCs12_SwiftObject
// CHECK-unknown-SAME:   %swift.type* null,
//   CHECK-apple-SAME:   %swift.opaque* @_objc_empty_cache,
//   CHECK-apple-SAME:   %swift.opaque* null,
//   CHECK-apple-SAME:   [[INT]] add (
//   CHECK-apple-SAME:     [[INT]] ptrtoint (
//   CHECK-apple-SAME:      {
//   CHECK-apple-SAME:        i32,
//   CHECK-apple-SAME:        i32,
//   CHECK-apple-SAME:        i32,
//                   :        i32,
//   CHECK-apple-SAME:        i8*,
//   CHECK-apple-SAME:        i8*,
//   CHECK-apple-SAME:        i8*,
//   CHECK-apple-SAME:        i8*,
//   CHECK-apple-SAME:        {
//   CHECK-apple-SAME:          i32,
//   CHECK-apple-SAME:          i32,
//   CHECK-apple-SAME:          [
//   CHECK-apple-SAME:            1 x {
//   CHECK-apple-SAME:              [[INT]]*,
//   CHECK-apple-SAME:              i8*,
//   CHECK-apple-SAME:              i8*,
//   CHECK-apple-SAME:              i32,
//   CHECK-apple-SAME:              i32
//   CHECK-apple-SAME:            }
//   CHECK-apple-SAME:          ]
//   CHECK-apple-SAME:        }*,
//   CHECK-apple-SAME:        i8*,
//   CHECK-apple-SAME:        i8*
//   CHECK-apple-SAME:       }* @_DATA__TtC4mainP[[UNIQUE_ID_1]]5Value to [[INT]]
//   CHECK-apple-SAME:     ),
//   CHECK-apple-SAME:     [[INT]] 2
//   CHECK-apple-SAME:   ),
//         CHECK-SAME:   i32 26,
//         CHECK-SAME:   i32 0,
//         CHECK-SAME:   i32 {{(24|12)}},
//         CHECK-SAME:   i16 {{(7|3)}},
//         CHECK-SAME:   i16 0,
//   CHECK-apple-SAME:   i32 {{(120|72)}},
// CHECK-unknown-SAME:   i32 96,
//         CHECK-SAME:   i32 {{(16|8)}},
//                   :   %swift.type_descriptor* bitcast (
//                   :     <{
//                   :       i32,
//                   :       i32,
//                   :       i32,
//                   :       i32,
//                   :       i32,
//                   :       i32,
//                   :       i32,
//                   :       i32,
//                   :       i32,
//                   :       i32,
//                   :       i32,
//                   :       i32,
//                   :       i32,
//                   :       i16,
//                   :       i16,
//                   :       i16,
//                   :       i16,
//                   :       i8,
//                   :       i8,
//                   :       i8,
//                   :       i8,
//                   :       i32,
//                   :       i32,
//                   :       %swift.method_descriptor
//                   :     }>* @"$s4main5Value[[UNIQUE_ID_1]]LLCMn" to %swift.type_descriptor*
//                   :   ),
//         CHECK-SAME:   i8* null,
//         CHECK-SAME:   %swift.type* getelementptr inbounds (
//         CHECK-SAME:     %swift.full_heapmetadata,
//         CHECK-SAME:     %swift.full_heapmetadata* bitcast (
//         CHECK-SAME:       <{
//         CHECK-SAME:         void (
//         CHECK-SAME:           %T4main3Box[[UNIQUE_ID_1:[a-zA-Z0-9_]+]]LLC*
//         CHECK-SAME:         )*,
//         CHECK-SAME:         i8**,
//                   :         [[INT]],
//   CHECK-apple-SAME:         %objc_class*,
// CHECK-unknown-SAME:         %swift.type*,
//   CHECK-apple-SAME:         %swift.opaque*,
//   CHECK-apple-SAME:         %swift.opaque*,
//   CHECK-apple-SAME:         [[INT]],
//         CHECK-SAME:         i32,
//         CHECK-SAME:         i32,
//         CHECK-SAME:         i32,
//         CHECK-SAME:         i16,
//         CHECK-SAME:         i16,
//         CHECK-SAME:         i32,
//         CHECK-SAME:         i32,
//         CHECK-SAME:         %swift.type_descriptor*,
//         CHECK-SAME:         i8*,
//         CHECK-SAME:         %swift.type*,
//         CHECK-SAME:         [[INT]],
//         CHECK-SAME:         %T4main3Box[[UNIQUE_ID_1]]LLC* (
//         CHECK-SAME:           %swift.opaque*,
//         CHECK-SAME:           %swift.type*
//         CHECK-SAME:         )*
//         CHECK-SAME:       }>* @"$s4main3Box[[UNIQUE_ID_1]]LLCySiGMf" to %swift.full_heapmetadata*
//         CHECK-SAME:     ),
//         CHECK-SAME:     i32 0,
//         CHECK-SAME:     i32 2
//         CHECK-SAME:   ),
//         CHECK-SAME:   [[INT]] {{(16|8)}},
//         CHECK-SAME:   %T4main5Value[[UNIQUE_ID_1]]LLC* (
//         CHECK-SAME:     %swift.opaque*,
//         CHECK-SAME:     %swift.type*
//         CHECK-SAME:   $s4main5Value[[UNIQUE_ID_1]]LLC5firstADyxGx_tcfC
//         CHECK-SAME: }>,
//         CHECK-SAME: align [[ALIGNMENT]]

fileprivate class Value<First> {
  let first_Value: First

  init(first: First) {
    self.first_Value = first
  }
}

fileprivate class Box<Value> {
  let value: Value

  init(value: Value) {
    self.value = value
  }
}

@inline(never)
func consume<T>(_ t: T) {
  withExtendedLifetime(t) { t in
  }
}

// CHECK: define hidden swiftcc void @"$s4main4doityyF"() #{{[0-9]+}} {
// CHECK:   [[METADATA_RESPONSE:%[0-9]+]] = call swiftcc %swift.metadata_response @"$s4main5Value[[UNIQUE_ID_4:[0-9A-Z_]+]]LLCyAA3BoxACLLCySiGGMb"([[INT]] 0)
// CHECK:   [[METADATA:%[0-9]+]] = extractvalue %swift.metadata_response [[METADATA_RESPONSE]], 0
// CHECK:   call swiftcc void @"$s4main7consumeyyxlF"(
// CHECK-SAME:     %swift.opaque* noalias nocapture {{%[0-9]+}}, 
// CHECK-SAME:     %swift.type* [[METADATA]])
// CHECK: }
func doit() {
  consume( Value(first: Box(value: 13)) )
}
doit()

//      CHECK: define internal swiftcc %swift.metadata_response @"$s4main5Value[[UNIQUE_ID_1]]LLCMa"([[INT]] [[METADATA_REQUEST:%[0-9]+]], %swift.type* %1) #{{[0-9]+}} {
//      CHECK: entry:
//      CHECK:   [[ERASED_TYPE:%[0-9]+]] = bitcast %swift.type* %1 to i8*
//      CHECK:   {{%[0-9]+}} = call swiftcc %swift.metadata_response @__swift_instantiateCanonicalPrespecializedGenericMetadata(
//      CHECK:     [[INT]] [[METADATA_REQUEST]], 
//      CHECK:     i8* [[ERASED_TYPE]], 
//      CHECK:     i8* undef, 
//      CHECK:     i8* undef, 
//      CHECK:     %swift.type_descriptor* bitcast (
//           :       <{ i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i16, i16, i16, i16, i8, i8, i8, i8, i32, i32, %swift.method_descriptor }>* 
//      CHECK:       $s4main5Value[[UNIQUE_ID_1]]LLCMn
//      CHECK:       to %swift.type_descriptor*
//      CHECK:     )
//      CHECK:   ) #{{[0-9]+}}
//      CHECK:   ret %swift.metadata_response {{%[0-9]+}}
//      CHECK: }

//         CHECK: ; Function Attrs: noinline nounwind readnone
//         CHECK: define linkonce_odr hidden swiftcc %swift.metadata_response @"$s4main5Value[[UNIQUE_ID_1]]LLCyAA3BoxACLLCySiGGMb"([[INT]] {{%[0-9]+}}) {{#[0-9]+}} {
//         CHECK: entry:
// CHECK-unknown: ret
//   CHECK-apple:  [[INITIALIZED_CLASS:%[0-9]+]] = call %objc_class* @objc_opt_self(
//              :    %objc_class* bitcast (
//              :      %swift.type* getelementptr inbounds (
//              :        %swift.full_heapmetadata,
//              :        %swift.full_heapmetadata* bitcast (
//              :          <{
//              :            void (
//              :              %T4main5Value33_9100AE3EFBE408E03C856CED54B18B61LLC*
//              :            )*,
//              :            i8**,
//              :            [[INT]],
//              :            %objc_class*,
//              :            %swift.opaque*,
//              :            %swift.opaque*,
//              :            [[INT]],
//              :            i32,
//              :            i32,
//              :            i32,
//              :            i16,
//              :            i16,
//              :            i32,
//              :            i32,
//              :            %swift.type_descriptor*,
//              :            i8*,
//              :            %swift.type*,
//              :            [[INT]],
//              :            %T4main5Value33_9100AE3EFBE408E03C856CED54B18B61LLC* (
//              :              %swift.opaque*,
//              :              %swift.type*
//              :            )*
//    CHECK-SAME:           @"$s4main5Value[[UNIQUE_ID_1]]LLCyAA3BoxACLLCySiGGMf" 
//              :           to %swift.full_heapmetadata*
//              :         ),
//              :         i32 0,
//              :         i32 2
//              :       ) to %objc_class*
//              :     )
//              :   )
//   CHECK-apple:   [[INITIALIZED_METADATA:%[0-9]+]] = bitcast %objc_class* [[INITIALIZED_CLASS]] to %swift.type*
//   CHECK-apple:   [[PARTIAL_METADATA_RESPONSE:%[0-9]+]] = insertvalue %swift.metadata_response undef, %swift.type* [[INITIALIZED_METADATA]], 0
//   CHECK-apple:   [[METADATA_RESPONSE:%[0-9]+]] = insertvalue %swift.metadata_response [[PARTIAL_METADATA_RESPONSE]], [[INT]] 0, 1
//   CHECK-apple:   ret %swift.metadata_response [[METADATA_RESPONSE]]
//         CHECK: }

